DE102014108906A1 - Electrical contacts with electrically conductive springs - Google Patents

Abstract

A face-to-face contact assembly comprising at least one electrically conductive spring member and at least one shielding spring member separated by a spacer element. From the perspective of a centerline and extending radially outwardly, an electrically conductive spring element is closest to the centerline, then comes the spacing element and then the shielding spring element. The electrically conductive spring member electrically interconnects two adjacent surfaces, which in one example may be adjacent printed circuit boards, and the shielding spring member at least partially shields such electrical connection. Other face-to-face contact arrangements are also disclosed.

Description

FIELD OF THE INVENTION

The present disclosure relates generally to the field of electrical contacts, and more particularly to surface-to-surface electrical contacts.

BACKGROUND

Surface-to-surface electrical contacts are used in numerous applications and industries, such as: Aerospace and automotive industries, just to name a few. The requirements for this type of contact can vary widely depending on the application. However, it is true that these contacts should provide a reliable and robust electrical connection between two surfaces.

SUMMARY OVERVIEW

A surface-to-surface contact assembly comprising two surfaces and at least one inner electrically conductive spring element and at least one outer shielding spring element separated by a spacer element is provided. The inner and outer spring elements engage with the spacer element, wherein the inner electrically conductive spring element electrically connects the two surfaces and the outer electrically conductive spring element at least partially shields the electrical connection.

Another surface-to-surface contact arrangement is provided that includes two surfaces and an inner electrically conductive spring element connecting the two surfaces.

There is yet another surface-to-surface contact arrangement comprising two surfaces and at least two inner electrically conductive spring elements and at least one outer shielding spring element separated by a spacer element. The inner and outer spring members engage with the spacer member, one of the inner electrically conductive spring member is in electrical contact with one of the two surfaces, and the other of the inner electrically conductive spring members is in electrical contact with the other of the two surfaces and the outer shielding spring member at least partially shields the electrical connection. The face-to-face contact assembly wherein an inner electrically conductive component engages the inner electrically conductive spring members.

Aspects of the present disclosure include a face-to-face contact assembly comprising an electrically conductive spring member and a shielding spring member separated by a spacer member and coaxially positioned relative to one another; the spacer element is in contact with both spring elements; wherein the electrically conductive spring element electrically connects two adjoining surfaces and the shielding spring element at least partially shields the electrical connection between the two surfaces which is produced by the electrically conductive spring element.

The surface-to-surface contact assembly, wherein the spacer element may be in contact with at least one of the two surfaces.

The face-to-face contact assembly may further include a central support member in contact with the electrically conductive spring member.

The surface-to-surface contact assembly, wherein the spacer member has an inner groove having one of a flat bottom, a V-shaped bottom, and a C-shaped bottom receiving the electrically conductive spring member and an outer groove having a flat one Reason, a V-shaped bottom and a C-shaped bottom, which accommodates the shielding spring element may include.

The face-to-face contact assembly, wherein the center support member may include an outer groove that receives the electrically conductive spring member, the outer groove comprising one of a flat bottom, a V-shaped bottom, and a C-shaped bottom.

The surface-to-surface contact arrangement, wherein the spacer element may be made of a dielectric material.

The surface-to-surface contact arrangement, wherein the center support element may be made of a dielectric material.

The surface-to-surface contact arrangement, wherein the spacer element may comprise more than one component.

The face-to-face contact assembly may further include a centering portion projecting from at least one of the two surfaces.

The surface-to-surface contact arrangement, wherein the spacer element may have an X-shape.

The face-to-face contact assembly, wherein the spacing member may include inner and outer projections that may protrude into the electrically conductive spring member and the outer shielding spring member, respectively.

The face-to-face contact assembly may further include a first component in contact with a first side of the two spring members and a second component in contact with a second side of the two spring members.

Another aspect of the present disclosure includes a face-to-face contact assembly comprising two faces and at least two inner electrically conductive spring members and at least one outer shielding spring member separated by a spacer member; wherein the inner and outer spring elements engage with the spacer element; wherein one of the inner electrically conductive spring elements is in electrical contact with one of the two surfaces and the other of the inner conductive spring elements is in electrical contact with the other of the two surfaces and the outer shielding spring element is the electrical connection of the at least two inner electrically conductive ones Spring elements is produced, at least partially shields; wherein an inner electrically conductive component engages with the inner electrically conductive spring elements.

The surface-to-surface contact assembly wherein the spacer element is engagable with at least one of the two surfaces.

The face-to-face contact assembly wherein the inner electrically conductive component is engagable with at least one of the two faces.

The surface-to-surface contact arrangement, wherein the spring element has at least one inner groove with one of a flat bottom, a V-shaped bottom and a C-shaped bottom, which at least partially accommodates one of the inner electrically conductive spring elements, and an outer groove with one of a flat bottom, a V-shaped bottom and a C-shaped bottom which at least partially accommodates the outer shielding spring element.

The surface-to-surface contact assembly, wherein the inner electrically conductive component may include at least one outer groove at least partially accommodating at least one of the inner electrically conductive spring members, the outer groove having a flat bottom, a V-shaped bottom, and a C-shaped ground comprises.

Yet another aspect of the present disclosure may include a face-to-face contact assembly comprising two faces and at least two inner electrically conductive spring members; wherein one of the inner electrically conductive spring members is in electrical contact with one of the two surfaces and the other of the inner electrically conductive spring members is in electrical contact with the other of the two surfaces; wherein an inner electrically conductive component engages with the inner electrically conductive spring elements.

The face-to-face contact assembly may further include a seal located outside the shielding spring member.

Yet another feature of the present disclosure is a face-to-face contact assembly comprising: a spacer member having a first spacer member separated by a strap from a second spacer member; an inner groove provided in the first spacer member and having a movable plate forming at least a part of the inner groove; the second spacer element having an inner block positioned within a bore of an outer block and defining an outer groove therebetween; a spring which is provided in the outer groove and forms a latching connection, a locking connection or a holding connection between the inner block and the outer block.

Still other features of the present disclosure are set forth in their respective forms as shown in each of the figures disclosed, with substantially similar components being considered by embodiment to embodiment in the following written description.

Yet another aspect of the present disclosure relates to a method of making each or each combination of the FaF contact arrangements disclosed herein.

Yet another aspect of the present disclosure relates to a method of using each or every combination of the FaF contact arrangements disclosed herein.

BRIEF DESCRIPTION OF THE DRAWINGS

These and other features and advantages of the present devices, systems and methods are described with reference to the description, Claims and accompanying drawings better understood, wherein:

1 . 1A and 2 Show face-to-face contact arrangements, each comprising an electrically conductive spring element and a shielding spring element, which are separated by a spacer element.

3 shows a surface-to-surface contact arrangement corresponding to the in 1 . 1A and 2 is substantially the same and further comprises a central support element.

4 shows a surface-to-surface contact arrangement corresponding to the in 1 . 1A and 2 is substantially the same and further comprises a central support element with a Zusammengreifkomponente.

4A the in 4 shown contact arrangement is substantially the same, wherein the Zusammengreifkomponente has a further surface feature for engaging.

4B the contact arrangement of 4A in contact with a first component and a second component.

5 shows a surface-to-surface contact arrangement comprising electrically conductive spring elements, which are arranged alternately with shielding spring elements, which are separated from each other by spacer elements.

5A shows a surface-to-surface contact assembly comprising a plurality of electrically conductive spring members and an outer shielding spring member separated by spacer elements.

6 shows a face-to-face contact assembly comprising an inner electrically conductive spring element and an outer shielding spring element separated by a spacer element, wherein the outer shielding spring element is embedded in the spacer element.

6A shows a face-to-face contact assembly comprising an inner electrically conductive spring element and an outer shielding spring element separated by a spacer element, the outer shielding spring element being filled with an elastomeric material.

6B shows a face-to-face contact assembly comprising an inner electrically conductive spring element and an outer shielding element separated by a spacer element, the outer shielding element being a shielding seal.

7 shows a face-to-face contact arrangement similar to that in FIG 1 and 2 is substantially the same, wherein the spacer element has an X-shape.

8th shows a face-to-face contact arrangement similar to that in FIG 1 and 2 is substantially the same, wherein the spacer element includes inner and outer projections which project into the inner electrically conductive and the outer shielding spring element.

9 shows a surface-to-surface contact arrangement consisting of an inner electrically conductive spring element.

10 shows a face-to-face contact arrangement similar to that in FIG 9 is substantially the same and further comprises a central support element with a Zusammengreifkomponente.

11 shows a face-to-face contact arrangement comprising two faces or layers, two inner electrically conductive spring elements, and two outer shielding spring elements.

12 shows a surface-to-surface contact arrangement comprising two surfaces or layers, two inner electrically conductive spring elements and two outer shielding spring elements which correspond to those of FIG 11 are substantially the same, with different dimensions used to allow the use of different spring winding sizes.

13 shows a face-to-face contact arrangement similar to that in FIG 1 is substantially identical and electrically interconnects two adjacent components.

14 shows a surface-to-surface contact arrangement comprising an inner electrically conductive spring element and a composite element serving both as a spacer and as a shielding element.

15 shows a surface-to-surface contact arrangement comprising an inner electrically conductive spring element and a composite element serving both as a spacer and as a shielding element, wherein the shape of the composite element is substantially an X-shape.

16 shows a two-layer surface-to-surface contact arrangement, that of 11 and 12 is substantially the same, with the grooves have tapered surfaces to rotate the springs positioned therein.

17 shows a surface-to-surface contact arrangement that of 16 is substantially the same, but as a single layer contact arrangement with grooves having tapered surfaces.

18 shows a surface-to-surface contact arrangement in which an outer spacer element has a latching connection.

19 shows a surface-to-surface contact arrangement in which an outer spacer has a locking connection.

20 shows a surface-to-surface contact arrangement in which an outer spacer element has a retaining connection.

DETAILED DESCRIPTION

The detailed description given below, taken in conjunction with the accompanying drawings, is intended to be a description of the presently preferred embodiments of electrical contacts provided in accordance with aspects of the present apparatus, systems, and methods and is not intended to illustrate the only embodiments in which: FIG present devices, systems and methods can be provided or used. In the description, the features and steps for forming and using the embodiments of the present devices, systems, and methods in connection with the illustrated embodiments are set forth. It should be understood, however, that the same or equivalent functions and structures may be practiced by other embodiments that are also within the spirit and scope of the present disclosure. As mentioned elsewhere herein, like reference characters designate like or substantially similar elements or features.

In the following description, the term "figure" is used interchangeably with the abbreviated term "Fig.".

1 shows a face-to-face ("FaF") contact arrangement 100 , which is an inner electrically conductive spring element 102 , which may also be referred to as a first spring element or a first spring, and an outer shielding spring element 104 , which may also be referred to as a second spring element or a second spring, by a spacer or spacer element 106 made of an insulating material, such. As a dielectric material, are spaced from each other. The second spring element 104 is made of a metallic material and therefore can conduct electricity. In the present embodiment, the outer or second spring member is used to shield EM (electromagnetic) waves. All three components 102 . 104 . 106 are annular and arranged around a center line CL around. Thus, it is understood that the inner spring 102 , the outer spring 104 and the spacer or spacer 106 all have an outer diameter and an inner diameter. It is understood that the second spring element 104 a larger AD (outer diameter) and ID (inner diameter) than the corresponding AD and ID of the first spring element 102 , It is further understood that the second spring element 104 has a larger OD and ID than the corresponding OD and ID of the spacing element 106 , The second spring element and the first spring element are positioned coaxially relative to one another. The second spring element and the spacing element are also coaxially positioned relative to one another. Further, it should be understood that one aspect of the present disclosure includes an outer spring and an inner spring separated by a spacer element. As shown, the outer spring 104 , the inner spring 102 and the spacer element 106 essentially along a same plane 90 positioned and are coaxially arranged. Preferably, the three components are in contact with each other. Preferably, the springs are bevelled coil springs, which may be axial tapered coil springs and may be tapered in the axial direction of the centerline. In other examples, the springs are radial tapered coil springs and are designed to be chamfered in a radial direction of the centerline.

The spacer element 106 has a first surface 108a with a first surface, a second surface 108b with a second surface and two side walls 110a . 110b on, wherein the electrically conductive spring element or the first spring 102 is positioned along the ID of the spacer element. The spacer element 106 is made of a dielectric material and insulates the first spring 102 electrically against the second spring 104 , Although the spacer element 106 along at least two planes is symmetrical, the spacing element may also be asymmetric. Furthermore, the spacer element 106 be made of more than one component, wherein not all of the components must be dielectric. For example, a portion of the spacer element 106 the multi-component embodiment, which is closer to the second spring 104 be made of a conductive material, wherein the remaining components or structures of the spacer element, the closer to the first spring 102 are nonconductive, so that they isolate the first spring electrically against the second spring. In another embodiment, the dielectric portion is provided at a different location as long as a unique insulating layer is provided between the first spring and the second spring.

In contact with the first spring 102 and the second spring 104 Shown are two planar components acting as a first structure or component 112 and a second structure or component 114 can be designated. The two components 112 . 114 can through the inner spring 102 or both through the inner spring 102 as well as the outer spring 104 placed in an electrical connection with each other. In the latter situation, where both springs are used, each of the two components exhibits 112 . 114 an insulating device, such. As a seal, a dielectric layer or the like to the contact points with the two springs 102 . 104 to isolate. The two components 112 . 114 can represent any number of electrical devices, such. Printed circuit board (PCB), printed wiring board (PWB), surface mounted devices or two conductors from two different nodes or printed circuit boards or a power source, to name but a few. As shown, the first component 112 a first conductor or a first conductor 40 and a second conductor or a second conductor 42 on, with a corresponding first conductor or a first trace 44 and a second conductor or a second conductor 46 on the second component 114 stay in contact.

The shielding spring element or the second spring 104 is designed so that it / the electrical connection of the electrically conductive spring element 102 is produced, at least partially shields. For example, the second or outer spring 104 designed so that they EM waves or signals coming from the first or inner spring element 102 be generated, so that they do not reach or disturb the surrounding components or devices. The second spring 104 is further designed to be the inner spring 102 shields against EM waves or signals from the outside environment so that they do not disturb the signals passing through the contact assembly 100 be transmitted. In one example, both the electrically conductive and the shielding spring elements 102 . 104 beveled coil springs, which may be either axially tapered coil springs or radially tapered coil springs, as these terms are known in the art. However, other spring elements can also be used, such as V-springs, band springs, compression springs, disc springs, corrugated springs, etc. The in 1 illustrated spacer element 106 includes an inner groove 113 with V-shaped bottom and an outer groove 116 with a V-shaped bottom, which may optionally have a flat bottom between the two tapered surfaces, ie a frusto-conical V. However, other configurations of the groove bottom can also be used, such as a flat bottom, a C-shaped bottom, etc. Furthermore, the side walls 110a . 110b be flat, ie have no grooves, such as. B. in the spring element 122 the arrangement 120 from 1A is shown. Alternatively, the spacer element 106 have different configurations of the inner and outer grooves. For example, one groove is a V-shaped groove, while the other groove has a substantially square shape or has a C-shaped bottom.

Thus, it should be understood that one aspect of the present disclosure includes a face-to-face contact assembly that includes a first spring, a spacer or spacer, and a second spring disposed or positioned along the same plane. In one example, the components are annular and coaxially positioned with the second spring on the outside of the first spring. The spacer element 106 stands with both the first spring 102 as well as the second spring 104 in contact, the second spring 104 a shielding spring for shielding EM waves generated by the first spring or EM waves or signals from the environment to be the first spring 102 do not bother. The spacer element 106 includes both inner and outer sidewalls and is in contact with the first and second springs via its inner and outer sidewalls, respectively.

In some examples, a sealant may be sealed against the environment to the connector 100 from 1 and 1A to be added. For example, an O-ring or a spring-actuated seal, such. For example, those disclosed in U.S. Pat. No. 5,979,904 to Balsells are added around the outermost periphery to seal the connector.

In other FaF contact arrangements and arrangement components, which are disclosed below, such as. B. other support and spacing components, it is understood that when a feature is shown, but not expressly described and otherwise the feature or features described elsewhere, such as. B. with reference to above 1 and 1A , is the same or substantially the same, but not the exposed part or parts shown in the following drawings are expressly described as being redundant and since knowledge has been built on a foundation formed by prior disclosures, yet understood as described or taught by the same or substantially the same features described in the text with respect to the embodiment in which the feature or features are described are expressly set forth, such. B. with respect to the contact arrangements of 1 and 1A , In other words, subsequent disclosures of the present application are constructed on the basis of previous disclosures unless the context otherwise indicates. The disclosure is therefore understood to teach a person of ordinary skill in the art in view of the disclosed embodiments and the features of the disclosed embodiments without repeating substantially similar components or features in all embodiments, as one skilled in the art will have substantially similar structural features, which he has just read in several previous paragraphs, would not disregard or ignore a knowledge he gained from earlier descriptions set forth in the same specification. Thus, the same or substantially the same features shown in the following contact arrangements include the teachings of previous embodiments unless the context dictates otherwise. Therefore, it is contemplated that embodiments disclosed later enjoy the benefit of earlier expressly described embodiments, such as those disclosed herein. B. Features and structures of previously described embodiments unless the context indicates otherwise. For example, while some later embodiments of the connector are not shown to be between two components 112 . 114 , are positioned as in 1 It is understood, however, that it is based on the discussions of 1 so can be used.

2 shows a surface-to-surface contact arrangement 124 that the in 1 shown substantially equal, but with a spacer element 126 that has an inner groove 128 with a C-shaped bottom and an outer groove 116 having a V-shaped bottom. The arrangements 120 . 124 from 1A and 2 both are understood to be each with one or two adjacent components 112 . 114 connectable in substantially the same way as in 1 shown. Thus, one aspect of the present disclosure relates to a spacer having other sidewall geometries for contacting or supporting adjacent beveled coil springs. The spacer element can not only with the arrangement of 2 used, but also in other contact arrangements described herein.

3 shows a surface-to-surface contact arrangement 130 that the in 1 . 1A and 2 shown is substantially the same and a spacer element 106 comprising, extending between the first spring element 102 and the second spring element 104 located. In the present embodiment, the arrangement comprises 130 Further, a middle support element 132 that is the inner electrically conductive spring element 102 receives. The middle support element 132 , which is illustrated in the present embodiment, comprises a groove 116 with a V-shaped bottom along its side, which is the inner electrically conductive spring element 102 receives. However, other groove base shapes may also be used, such as a flat bottom, a C-shaped ground, etc. Further, no grooves, ie flat side walls, may be used. In one example, the center support element 132 a structure for supporting the arrangement 130 within a housing (not shown). The FaF contact arrangement 130 according to the present embodiment is like the arrangement of 1 usable. The middle support element 132 should be non-conductive.

4 shows a surface-to-surface contact arrangement 134 that the in 3 shown substantially equal, wherein a middle support element 136 is provided so that it is a collective component 138 that extends from one or both surfaces 108a . 108b of the support element extends. The intermeshing component 138 can with a shaft or a rod with or without surface features, such. Protrusions or recesses, for use in conjunction or in conjunction with one of the two adjacent components 112 . 114 ( 1 ). For example, the composite component 138 a shaft with a positioning feature or a mechanical connector for connecting the assembly 134 with a housing or for connecting the various components together. The intermeshing component 138 may have additional features or structures that are in 4 are not shown, in order to fulfill their purpose, such as. As screws, recesses, tapped holes, flanges, spring groove, etc. Furthermore, the middle support element 136 comprise more than one composite component or feature.

4A shows an alternative FaF contact arrangement 134 that of the 4 is substantially the same and a central support element 136 having. In the present embodiment, the center support member comprises 136 a shaft that has an enlarged lip 48 and a channel 50 comprises, which is formed by at least a part of the shaft. The enlarged lip 48 can engage with a receiving recess, and the channel is provided so as to provide an inward bend of the enlarged lip 48 allows it to pass through the receiving recess.

4B shows the FaF contact arrangement 134 from 4A that is between a first component 112 and a second component 114 is located, in substantially the same manner as the contact arrangement 100 from 1 , As shown, is the Zusammengreifkomponente 138 into a hole 52 the second component 114 before, the connection arrangement 134 mechanically hold on to the second component. Optionally, the middle support element 136 Contain a second meshing component, which consists of the first surface 108a as well as the second surface 108b out to engage with a hole in the first component 112 is trained.

As mentioned above, a seal against the environment, such. As an O-ring or a spring-actuated lip seal, be provided to the contact arrangement 134 seal. For example, the seal against the environment may be the gap 54 seal between the first and second components 112 . 114 located. For example, the seal may be a seal against the inner surfaces 56 the first and second components 112 . 114 be to prevent moisture, dust and other unwanted materials in the contact arrangement 134 enter.

5 shows a surface-to-surface contact arrangement 140 containing a plurality of electrically conductive spring elements 102 which alternates with shielding spring elements 104 are arranged and by spacer elements 106 spaced apart from each other. The spacer elements 106 , which are illustrated in the present embodiment, include an inner and an outer groove with V-shaped bottom, which receive corresponding spring elements. However, other Nutgrundformen can be used, such as a shallow ground, a C-shaped bottom, etc. Furthermore, no grooves, such. As a flat side wall can be used. As shown, two conductive spring elements 102 on the inside of a single shielding spring element 104 positioned. In another example, the innermost and outermost spring elements are shielding spring elements 104 while the middle spring is a conductive spring element 102 which means that electrical signals or waves are provided through the conductive spring element 102 to get lost. At each spacer 106 At least part of the structure must be nonconductive to isolate two adjacent feathers.

5A shows a surface-to-surface contact arrangement 146 that has several internal electrically conductive spring elements 102 and an outer shielding spring element 104 encompassed by spacer elements 106 spaced apart from each other. The spacing elements shown in this figure 106 include an inner and an outer groove with V-shaped bottom, which receive corresponding spring elements. However, other groove basic shapes may also be used, such as a flat bottom, a C-shaped ground, etc. Further, no grooves can be used as well 1A is shown. In the present embodiment, there are five inner electrically conductive spring elements 102 and an outer shielding spring element 104 intended. In other examples, the number of internal electrically conductive and shielding spring elements 102 . 104 depending on the requirements of the applications where the surface-to-surface contact arrangement 146 can be used vary.

6 shows a surface-to-surface contact arrangement 150 , which is an inner electrically conductive spring element 152 and an outer shielding spring element 154 caused by a spacer element 156 are separated, wherein the outer shielding spring element 154 in the spacer element 156 is embedded. The location of the embedded outer shielding spring member relative to the spacer member may differ from that shown. The spacer element 156 , which is shown in the present embodiment, includes a groove 158 with V-shaped base, which is the inner electrically conductive spring element 152 receives. However, other groove base shapes may also be used, such as a flat bottom, a C-shaped ground, etc. Further, no grooves can be used at all. In other examples, the shielding spring element 154 not in the spacer element 156 embedded, but is instead in an elastomeric outer jacket, such. B. an O-ring, embedded and against an outer groove on the spacer element 156 positioned. The center of the spring may be hollow or filled with an elastomeric material. In another embodiment, the outer spring is formed around an elastomeric material with the windings exposed to the outside.

6A shows a surface-to-surface contact arrangement 151 , which is an inner electrically conductive spring element 152 and an outer shielding spring element 154 caused by a spacer element 156 are separated, wherein the outer shielding spring element 154 with an elastomeric material 155 is filled. The spring element 154 has a combination of properties of a helical coil spring and the Elastomer material on. The spacer element 156 , which is illustrated in the present embodiment, comprises a groove on two side walls 158 with a V-shaped base, which is the inner electrically conductive spring element 152 and the outer shielding spring element 154 receives. However, other groove base shapes may also be used, such as a flat bottom, a C-shaped ground, etc. Further, no grooves can be used at all. In other examples, the shielding spring element 154 not in the spacer element 156 embedded, but is instead in an elastomeric outer jacket, such. B. an O-ring, embedded and against an outer groove on the spacer element 156 positioned. The center of the spring may be hollow or filled with an elastomeric material. In another embodiment, the outer spring is formed around an elastomeric material with the windings exposed to the outside.

6B shows a surface-to-surface contact arrangement 153 , which is an inner electrically conductive spring element 152 and an outer EMI shielding gasket 157 caused by a spacer element 156 are separated. In one example, the EMI shielding gasket is 157 electrically conductive. For example, a wire or wire cage may be filled with or formed from an elastomeric material such that the seal is electrically conductive. The spacer element 156 , which is illustrated in the present embodiment, comprises a groove on two side walls 158 with V-shaped base, which is the inner electrically conductive spring element 152 and the outer shielding spring element 154 receives. However, other groove base shapes may also be used, such as a flat bottom, a C-shaped ground, etc. Further, no grooves can be used at all.

7 shows a surface-to-surface contact arrangement 160 that in those 1 and 2 is substantially the same, wherein the spacer element 162 a non-rectangular cross-sectional shape, such. B. an X-shape has. The spacer 162 can be flexible, such as B. made of an elastomeric material or a thermoplastic elastomer (TPE), be manufactured, or be made of a relatively rigid material. For example, the spacer can 162 be formed of a thermoplastic material. Such a shape gives the spacer a greater flexibility along its central axis, thus allowing for greater tolerances to be accommodated with respect to the spacing between the two surfaces. Other forms for imparting greater flexibility along the central axis of the spacer are also contemplated. The spacer element 162 from 7 has an inner groove 164 and an outer groove 166 which may be V-shaped grooves as well as other groove types discussed elsewhere herein. The spacer element 162 also has an upper groove 168 and a lower groove 170 on.

8th shows a surface-to-surface contact arrangement 180 that in those 1 and 2 is substantially the same, wherein the spacer element 182 an inner projection 184 and an outer projection 186 includes, in the inner electrically conductive spring element 102 or the outer shielding spring element 104 protrude. In the present embodiment, the projections stand 184 . 186 through the entire width of both the inner electrically conductive spring and the outer shielding spring element 102 . 104 in front. However, the projections may also protrude into the spring elements, covering only a portion of their width. The projections 184 . 186 Provide support for the spring elements and can help to make the spring elements with the spacer element 182 hold together to prevent unwanted separation, such. As in installation, assembly or maintenance. For example, the projections 184 . 186 protrude through gaps or spaces between adjacent spring coils. In some examples, there are more than two inner protrusions and more than two outer protrusions on the spacer 182 intended.

9 shows a surface-to-surface contact arrangement 190 which essentially only consists of an electrically conductive spring element 102 consists. Optionally, a (not shown) central support member may be provided. In the present embodiment, the electrically conductive spring element 102 from a beveled coil spring. The spring element 102 may be usable as a first spring, which in 1 and 2 and elsewhere shown here is essentially the same. In other examples, the electrically conductive spring element 102 include other types of springs, such as V-springs, band springs, compression springs, disc springs, corrugated springs, etc. Suitable tapered coil springs are in U.S. Pat. No. 4,655,462 disclosed, the content of which is hereby expressly incorporated by reference in its entirety. Further, the wires for forming the springs may be coated with one or two further metallic materials or layers to control various characteristics of the springs, such as, e.g. B. to increase the resilience of the springs.

10 shows a surface-to-surface contact arrangement 200 that the in 9 is substantially the same and further includes a central support member 202 with a collective component 204 which is designed to be compatible with an adjoining component, that of the component 112 or 114 from 1 is essentially the same, takes hold. This in 10 illustrated middle support element 202 includes a groove 116 with V-shaped base, which is the electrically conductive spring element 102 receives. However, other groove base shapes may also be used, such as a flat bottom, a C-shaped ground, etc. Further, no grooves can be used at all. The intermeshing component 204 , which is shown in the present embodiment, has the shape of a pin. However, it can also have a different shape. Furthermore, the middle support element 202 with at least one surface component, such. B. an adjacent PCB, without it being such a Zusammengreifkomponente 204 having. Furthermore, it may have more than one Zusammengreifkomponente such. For example, two or more. Furthermore, the middle support element 202 of one or two adjacent components, such as B. one or two adjacent PCBs protrude.

11 shows a surface-to-surface contact arrangement 210 holding a stack of two electrically conductive spring elements 102 and a stack of two shielding spring elements 104 caused by a spacer element 212 are separated and can be formed in one piece includes. In the present embodiment, the spacer element is 212 further as a first spacer element part 214 and a second spacer element part 216 provided by a band 218 are separated from each other. An outer retaining band 219 is intended to hold the various components together. In one example, the outer retaining band 219 with an annular groove 220 for picking up a tongue 222 on the second spacer element part 216 Mistake. The retaining band 219 may be formed of a non-conductive material. The retaining band may serve to hold the various components and / or to provide a seal against the environment.

In one example, the face-to-face contact arrangement is 210 with an electrically conductive middle support element 224 provided by the middle body 221 protrudes and straight or tapered sidewalls 226 and the inner electrically conductive spring elements 102 receives and adequately stacking the same allows. The second spacer element part 216 is also with a middle support element 228 provided by a middle body 221 protrudes. In the embodiment shown, the inner band 218 made of an insulating material, such. As a dielectric material manufactured. In other examples, the middle body is 221 made of a conductive material, while the middle support elements 224 . 228 and the band 218 are made of a non-conductive material. Generally, there must be a conductive path between each of the respective pairs of layers of springs, with two adjacent pairs insulated to avoid interference.

The feathers 102 . 104 are shown with substantially equal sized windings. In other examples, the windings have different sizes, such as. B. by integrating different thicknesses of the middle body 221 to allow the use of different winding sizes. The double layer contact arrangement 210 from 11 allows an increase in the effective working range of the tapered coil springs against a single-layer contact arrangement, such. B. the single-layer contact arrangement of 1 , This allows greater flexibility in terms of warping, manufacturing tolerance and alignment.

12 shows a surface-to-surface contact arrangement 211 holding a stack of two electrically conductive spring elements 102 and a stack of two shielding spring elements 104 caused by a spacer element 212 are separated and can be formed in one piece includes. The present contact arrangement 211 is the contact arrangement of 11 essentially the same, except that the middle body 221 of the spacer element 212 has a different thickness than the middle body 221 of the middle support element 218 , As shown, the middle body is 221 of the spacer element 212 thicker than the middle body 221 of the middle support element 228 , This allows the use of different spring winding sizes. As shown, the conductive spring elements 102 smaller winding sizes than the windings of the shielding spring elements 104 , In another example, the reverse is the case, namely that the windings of the conductive spring elements 102 are bigger.

13 shows a surface-to-surface contact arrangement 240 that is an electrically conductive spring element 102 and a shielding spring element 104 which by a spacer or spacer element 106 are separated, wherein the inner and outer spring elements with two printed circuit boards 242 . 244 stay in contact. The inner spring element 102 stands with an electrical connection 246 that is on the upper PCB 242 located, and an electrical connection 248 that is on the lower PCB 244 is in contact. Thus, it should be understood that the surface-to-surface contact arrangement 240 the two adjacent printed circuit boards 242 . 244 over the electrical connections 246 . 248 and the leading one spring element 102 connects electrically. It should be noted that the terms first, second, upper, lower, inner and outer, which are used elsewhere herein, merely serve to distinguish different reference points for discussion purposes only, but not necessarily to structurally limit the components, as long as the Context indicates nothing else.

In one example, inner and outer coupling elements 245 . 247 provided, each with a bore, an upper surface 108a and a lower surface 108b are provided. Each coupling element 245 / 247 is with an electrical connection 246 . 247 Mistake. As shown, the terminal on each coupling element extends continuously between the upper and lower surfaces 108a . 108b , Also shown are conductive plates 249 on the lower surfaces 108b the coupling elements 245 . 247 are provided. The shielding spring element 104 is against the plates 249 biased. In other examples, the shielding spring element 104 with an elastomeric material, such as. B. with reference to 6A shown, filled or is by a shielding seal, such. B. the in 6B shown, replaced.

14 shows a surface-to-surface contact arrangement 270 , which is a conductive spring element 102 which is adjacent to a composite element 272 is positioned, which serves both as a spacer and as a shielding element. In an example, the composite element comprises an inner portion 274 made of a first material and a second section 276 which is made of a second material. One of the first and second materials shields electromagnetic radiation from the electrically conductive element 102 is generated, and may be made of the other of the first and second materials filled with particles giving such shieldability. The inner and outer sections 274 . 276 can be formed in one piece, such. B. by joint molding or overmolding. Furthermore, the composite component 272 include more than two sections. In the alternative embodiment having more than two sections, more than one of the plurality of sections may provide electromagnetic shielding. As shown, the inner section 274 be made of an elastomer, TPE or a thermoplastic material, while the outer portion 276 of the composite element 272 may comprise a conductive cage which may be filled with the same or a different non-conductive material as / as the inner portion 274 ,

15 shows a surface-to-surface contact arrangement 280 , which is a conductive spring element 102 which is adjacent to a composite element 282 is positioned, which serves both as a spacer and as a shielding element. In an example, the composite element comprises 282 an inner section 284 made of a first material and an outer portion 286 made of a second material in substantially the same way as in FIG 14 however, the contour is shaped substantially as an "X".

16 shows yet another FaF contact arrangement 290 , which is provided according to the aspects of the present disclosure. The present contact arrangement is with few exceptions the contact arrangement of 11 and 12 essentially the same. In the present embodiment, the contact arrangement 290 Furthermore, a spacer element 292 and a belt 219 on. In the present embodiment, the spacer element comprises 292 a first spacer element part 294 and a second spacer part 296 with a band in between 218 , The first spacer element part 294 has an upper groove 300 and a lower groove 302 for receiving an upper conductive spring element 102 and a lower conductive spring element 102 on. In substantially the same way, the second spacer element part 296 an upper groove 304 and a lower groove 306 for receiving an upper shielding spring element 104 and a lower shielding spring element 104 on. In one example, the four grooves 300 . 302 . 304 . 306 the same general embodiment. In other examples, the grooves have different groove configurations or geometries. For example, the upper grooves 300 . 304 have the same shape while the lower grooves 302 . 306 may have other shapes than the upper grooves. In another example, the upper and lower grooves 300 . 302 the first spacer element part 294 same, and the upper and lower grooves 304 . 306 the second spacer part 296 are equal, but the two pairs of grooves are different from each other. By differentiation or configuration, the grooves may have different geometries to force the springs located in the respective grooves to rotate at a different angle of rotation or not to rotate at all, as discussed below.

As shown, each of the four grooves includes two sidewalls 310 . 312 and a lower wall in between 314 , The bottom wall 314 runs conically, so that each groove has a side wall 310 which is longer than the other side wall 312 same groove. Each groove also has a groove width measured between the two side walls. In the example shown is the Groove width narrower than the major axis of the spring coils of the respective spring, so that the windings of the spring are forced to rotate when placed inside the groove, as shown. Of course, it is known that each winding of a spring winding has a major axis and a minor axis, the major axis being the longer of the two axes. The grooves may be of a desired width and angle for the tapered bottom wall 314 be sized to force the main axis of the spring to rotate and be at a desired angle of rotation when positioned within the groove, for example anywhere between about 5 degrees and about 85 degrees at zero degrees shown in Figs 11 and 12 shown springs. Thus, the contact arrangement 290 by including the grooves that can force the springs therein to rotate, receive either radial tapered coil springs or axial tapered coil springs. Further, by sizing the angle of rotation of the windings to a desired angle, the loading forces for chamfering the windings, when associated with adjacent components, such as, for example, windings. As PCBs are brought into contact, be regulated. For example, the forces may increase when the contacts are closer to the major axis, as shown, and may be reduced when the contacts are closer to the minor axis, as in FIG 11 and 12 is shown. The spring characteristics may also be controlled so as to increase or decrease the loading forces on adjacent components.

17 shows a schematic sectional view of a FaF contact arrangement 320 , which is provided according to further aspects of the present disclosure. The present contact arrangement 320 is with a few exceptions the contact arrangement of 16 essentially the same. At first, contrary to the in 16 shown double layer of springs, the contact arrangement a single layer of springs 102 . 104 on. The present arrangement 320 has a spacer 322 , which is a first spacer element part 324 which is covered by a ribbon 328 from a second spacer element part 326 is separated, and a detention tape 330 which, with the exception of the fact that it is a single layer, that of 16 is essentially the same. The present connection part further has a groove 300 in the first spacer element part 324 is formed, for receiving the conductive first spring 102 , and a groove 304 in the second spacer element part 326 is formed, for receiving the second shielding spring 104 on. The two grooves 300 . 304 may have the same Nutausgestaltung or have different Nutausgestaltungen. As shown, each groove has two sidewalls and a tapered bottom wall therebetween. The groove width is smaller than the major axis of the spring coils which it receives to rotate the spring, as opposed to the groove width that is the same size or wider so that the spring does not rotate, as in FIG 11 and 12 is shown.

A first component 112 is due to the FaF contact arrangement of 17 in electrical contact with a second component 114 placed. The first and second components 112 . 114 can be any number of electronic components or devices that are to be electrically connected to each other, such as. B. two PCBs. As shown, the width or height of the tether is 330 designed to work with the first and second components 112 . 114 in contact. The feathers 102 . 104 however, are prior to mounting the first component 112 about the height of the retaining strap 330 Beyond and are from the first component 112 until the inhibition by the retaining band 330 downwardly loaded or biased, except in the case where the retaining band is compressible. This load provides a positive contact between the springs and the electrical connections or tracks 332 at the first component 112 and may be chosen in view of the spring force versus bending characteristics for the tapered spring coils. It should be understood that other connectors discussed elsewhere herein inherently have substantially the same capabilities. Although the electrical tape 328 from the first component 112 Spaced apart, air is an adequate insulation between the first spring 102 and the second spring 104 as long as the band is the first spacer element part 324 from the second spacer part 326 separates and no continuous electrical path is provided.

The second component 114 is in abutting contact with the first spacer element part 324 and the second spacer part 326 placed, which are conductive and by the non-conductive band 328 separated or isolated from each other. An externally acting force or an externally acting pressure, such. B. by holders, fasteners, and by the first component 112 etc. on the springs 102 . 104 acting opposing compression force can be used to provide adequate contacts between the tracks or terminals 332 the second component 114 and the first spacer element part 324 and the second spacer part 326 sure.

18 shows yet another FaF contact arrangement 340 provided according to further aspects of the present arrangements and methods. Like the other contact arrangements discussed elsewhere, the present contact arrangement 340 a spacer element 342 , which is a first spacer element part 344 that includes a band 348 from a second spacer element part 346 is disconnected. Although not shown, a retaining band, such. As an O-ring, a seal or a spring-actuated lip seal, used to the gap 54 between the first component 112 and the second component 114 seal.

First, with respect to the first spacer element 344 an inner groove 350 for receiving the conductive spring element 102 intended. The first spacer element part 344 has a spacer base part 352 on top, that's a base plate 354 , a base lead 356 with a first protruding section 358 and a second protrusion portion 360 that covers through a shoulder 362 are separated from each other. The second protrusion section 360 may have a tapered nose end for ease of insertion into a plate, as discussed below. A gutted section 370 is between the base plate 354 and the first protrusion portion 358 formed, which forms part of the groove 350 forms. In one example, a sidewall runs 372 at the first protruding portion 358 substantially straight or vertical, so that it runs parallel to the center line CL. The straight side wall allows, when installed, that the spring element 102 which may be an axial tapered coil spring, is positioned in this and does not affect the angle of rotation of the spring. As shown, the side wall runs 372 conical. The tapered side wall causes the conductive spring element 102 turns easily. In other examples, the tapered sidewall may be adjusted to rotate the spring less than shown, or even more. An edge 374 extends from the base plate 354 acting as an outer sidewall of the groove 350 serves. In an alternative embodiment, the edge is eliminated 374 or a shorter edge than shown is provided.

A spacer plate 376 is with a hole 378 provided for receiving the second projection portion 360 sized and shaped. The spacer plate 376 has a bottom surface for abutting contact with the conductive spring element 102 and an upper surface for abutting contact with the first conductive component 112 on. As shown, the upper surface is in contact with the trace or the terminal 332 at the first component 112 in contact. An electrical communication between the first component 112 and the second component 114 flows through the conductor or the connection 332 the first component, by the conductive spring element 102 , through the first spacer element part 344 , then through the trace or the connection of the second component 114 ,

The ribbon 348 made of a dielectric material has a gap 390 put the band in a first section 392 and a second section 394 separates. In one example, the two sections 392 . 394 the same size and design. Preferably, the two sections 392 . 394 divided along the same thickness dimension as the spacer plate 376 , Thus, as shown, the second section 394 longer than the first section 392 and is designed to match the thickness of the spacer plate 376 matches. The gap 390 between the two sections 392 . 394 can completely close or close when the connector is used and between the first component 112 and the second component 114 is placed. Typically, the gap remains in the installation, as it is understood that air provides adequate insulation for the first spring 102 and the second spring 104 offers.

In the present embodiment, the second spacer member is 346 designed as a latching connection part. As shown, the second spacer member has 346 a pair of matching blocks 400 on, that's an outside block 402 and an inside block 404 having a groove in between 406 form. As shown, the groove 406 so rotates that the two side walls 408 . 410 substantially parallel to the first and / or second components 112 . 114 run, and the bottom wall 412 is substantially parallel to the centerline of the assembly.

The inside block 404 stands together with the shielding spring 104 in a hole in front of the outer block 402 is formed, which is a bore 414 has, in which the spring 104 snaps to form a latch connection. In the example shown, the groove 414 essentially arcuate or C-shaped. The shielding spring shown 104 is a radial tapered coil spring and biased against the two grooves. In the embodiment shown, the biasing force of the shielding spring presses 104 the outer rear surface 420 of the inner block 404 against the band 348 to ensure adequate contact or connection between the two. In other examples, the groove 406 be modified to have tapered surfaces to the position of the shielding spring 104 to rotate. The connection between the two grooves 406 . 414 and the spring 104 is understood as a latching connection and allows the inner block 404 even after assembly of the outer block 402 is disconnected.

19 shows a surface-to-surface contact arrangement 430 , which is provided according to yet another aspect of the present disclosure. The present contact arrangement 430 is, with a few exceptions, the contact arrangement 340 from 18 essentially the same. In the present embodiment, the second spacer element 346 an inside block 404 on top of a groove 406 with a tapered surface, and the outer block 402 has a groove which has at least one straight side wall 432 includes.

The groove 406 in the inner block 404 is structured so that it has a shielding spring 104 which is an axial tapered coil spring and the spring rotates so that its major axis is angled from the orthogonal to the center line of the assembly. After assembling the various components, as in 19 is shown, the groove 414 on the outer block 402 so sized and shaped that the at least one straight sidewall 432 near one end of the main axis of the windings is in contact with the spring. And since a chamfered coil spring does not bend when loaded near its major axis, contact with the at least one sidewall may result 432 The spring should not be raised to the two blocks 402 . 404 to allow to separate. The connection with the two grooves 406 . 414 and the spring 104 is therefore understood as a locking connection.

In 20 is a face-to-face contact arrangement 440 shown according to still further aspects of the present disclosure. The present contact arrangement 440 is, with a few exceptions, the contact arrangement 340 in 18 and the contact arrangement 430 in 19 essentially the same. In the present embodiment, the second spacer element 346 an inside block 404 on top of a groove 406 comprising two side walls and a bottom wall for receiving a radial tapered coil spring. The two side walls are substantially parallel to each other and the bottom wall is substantially parallel to the center line of the assembly. The outer block 402 has no groove.

The groove 406 in the inner block 404 is structured so that it has a shielding spring 104 which receives a radial tapered coil spring but does not rotate the spring. However, the groove width and either one or more sidewalls and / or the bottom wall may taper to rotate the spring. After assembly, in 20 shown is the spring 104 biased against a flat surface in the bore of the outer block 402 is provided, which is referred to as a holding connection part. In a holding connection part, a frictional force and the spring constant hold the outer block 402 and the inside block 404 but these can be overcome to separate the two components.

Methods of making and method of using face-to-face contact arrangements as shown herein are understood to be within the scope of the present disclosure.

Although limited embodiments of face-to-face contact assemblies and their components have been specifically described and illustrated herein, many modifications and variations will be apparent to those skilled in the art. For example, the various spacing elements and support members may be modified to have different shapes than described herein and other stacking arrangements with respect to the arrangement of FIG 11 and 12 can be provided. Further, it is understood and contemplated that features that have been specifically discussed for one contact arrangement may be included in another contact arrangement, provided that the functions are compatible. For example, the X-shaped support element of 7 as one of the support elements in the series of support elements of 5 be used. Accordingly, it should be understood that the contact assemblies and their components, as designed in accordance with the principles of the disclosed apparatus, system, and method, may be embodied otherwise than as specifically described herein. The disclosure is also defined in the following claims.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• US 4655462 [0076]

Claims (38)

Surface-to-surface contact assembly comprising an electrically conductive spring element and a shielding spring element separated by a spacer element and coaxially positioned relative to each other; wherein the spacer element is in contact with both spring elements; wherein the electrically conductive spring element electrically connects two adjoining surfaces and the shielding spring element at least partially shields the electrical connection between the two surfaces produced by the electrically conductive spring element. The face-to-face contact assembly of claim 1, wherein the spacer member is in contact with at least one of the two surfaces. The face-to-face contact assembly of claim 1, further comprising a center support member in contact with the electrically conductive spring member. The face-to-face contact assembly of claim 3, wherein the center support member is in contact with at least one of the two surfaces. The surface-to-surface contact assembly of claim 1, wherein the spacer member has an inner groove having one of a flat bottom, a V-shaped bottom, and a C-shaped bottom receiving the electrically conductive spring member and an outer groove having one of a flat bottom, a V-shaped bottom, and a C-shaped bottom receiving the shielding spring member. The face-to-face contact assembly of claim 3, wherein the center support member includes an outer groove that receives the electrically conductive spring member, the outer groove comprising one of a flat bottom, a V-shaped bottom, and a C-shaped bottom. The face-to-face contact assembly of claim 1, wherein the spacer element is made of a dielectric material. Surface-to-surface contact assembly according to claim 3, wherein the central support member is made of a dielectric material. The face-to-face contact assembly of claim 1, wherein the spacer member comprises more than one component. The surface-to-surface contact assembly of claim 1, further comprising a centering portion projecting from at least one of the two surfaces. The face-to-face contact assembly of claim 1, wherein the spacer member has an X-shape. Face-to-face contact assembly according to claim 1, wherein the spacing element comprises inner and outer projections which project into the electrically conductive spring element and the outer shielding spring element, respectively. The face-to-face contact assembly of claim 1, further comprising a first component in contact with a first side of the two spring members and a second component in contact with a second side of the two spring members. Face-to-face contact arrangement according to claim 13, further comprising a central support element, which engages with the electrically conductive spring element. The face-to-face contact assembly of claim 14 wherein the central support member engages at least one of the two surfaces. The face-to-face contact assembly of claim 15, wherein the center support member includes an outer groove that receives the electrically conductive spring member, the outer groove comprising one of a flat bottom, a V-shaped bottom, and a C-shaped bottom. Face-to-face contact assembly according to claim 15, wherein the central support member is made of a dielectric material. The face-to-face contact assembly of claim 15, further comprising a centering member projecting from at least one of the two surfaces. The face-to-face contact assembly of claim 15, wherein at least a portion of the central support member is integrally formed with or attached to at least one of the two surfaces. The face-to-face contact assembly of claim 14, further comprising an outer shielding component. The face-to-face contact assembly of claim 1, wherein the outer shielding component comprises at least two portions, wherein at least one of the at least two portions at least partially shields the electromagnetic radiation radiated from the electrically conductive spring member. The face-to-face contact assembly of claim 21, wherein the outer shielding component has an X-shape. Surface-to-surface contact assembly comprising two surfaces and at least two inner electrically conductive spring elements and at least one outer shielding spring element separated by a spacer element; wherein the inner and outer spring elements engage with the spacer element; wherein one of the inner electrically conductive spring elements is in electrical contact with one of the two surfaces and the other of the inner conductive spring elements is in electrical contact with the other of the two surfaces and the outer shielding spring element is the electrical connection of the at least two inner electrically conductive ones Spring elements is produced, at least partially shields; wherein an inner electrically conductive component engages with the inner electrically conductive spring elements. The face-to-face contact assembly of claim 23, wherein the spacer member engages at least one of the two surfaces. The face-to-face contact assembly of claim 23, wherein the inner electrically conductive component engages at least one of the two faces. The surface-to-surface contact assembly of claim 23, wherein the spacer member has at least one inner groove having one of a flat bottom, a V-shaped bottom, and a C-shaped bottom that at least partially accommodates one of the inner electrically conductive spring members outer groove having one of a flat bottom, a V-shaped bottom and a C-shaped bottom which at least partially accommodates the outer shielding spring element. The face-to-face contact assembly of claim 23, wherein the inner electrically conductive component includes at least one outer groove at least partially receiving at least one of the inner electrically conductive spring members, the outer groove having a flat bottom, a V-shaped bottom and a C-shaped ground. The face-to-face contact assembly of claim 23, wherein the spacer element is made of a dielectric material. The face-to-face contact assembly of claim 23, wherein the spacer member comprises more than one component. The face-to-face contact assembly of claim 23, further comprising an electrically conductive component projecting from at least one of the two faces. The face-to-face contact assembly of claim 23, wherein at least a portion of the inner electrically conductive component is integrally formed with or attached to at least one of the two surfaces. Surface-to-surface contact arrangement comprising two surfaces and at least two internal electrically conductive spring elements; wherein one of the inner electrically conductive spring members is in electrical contact with one of the two surfaces and another of the inner electrically conductive spring members is in electrical contact with the other of the two surfaces; wherein an inner electrically conductive component engages with the inner electrically conductive spring elements. The face-to-face contact assembly of claim 32, wherein the inner electrically conductive component engages at least one of the two surfaces. The face-to-face contact assembly of claim 32, wherein the inner electrically conductive component includes at least one outer groove at least partially receiving at least one of the inner electrically conductive spring members, the outer groove having a flat bottom, a V-shaped bottom and a C-shaped ground. The face-to-face contact assembly of claim 32, further comprising an outer shielding component for shielding the electrical connection between the two surfaces made by the inner electrically conductive spring members and the inner electrically conductive component. The face-to-face contact assembly of claim 32, wherein at least a portion of the inner electrically conductive component is integrally formed with or attached to at least one of the two surfaces. The face-to-face contact assembly of claim 1, further comprising a seal located outside the shielding spring member. A surface-to-surface contact assembly comprising: a spacer element comprising a first spacer element portion defined by a strap is separated from a second spacer element part; an inner groove provided in the first spacer member and having a movable plate forming at least a part of the inner groove; the second spacer element part having an inner block positioned within a bore of an outer block and defining an outer groove therebetween; a spring which is provided in the outer groove and forms a latching connection, a locking connection or a holding connection between the inner block and the outer block.

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