WO1993005552A1 - Electrical adaptor - Google Patents

Electrical adaptor Download PDF

Info

Publication number
WO1993005552A1
WO1993005552A1 PCT/GB1992/001643 GB9201643W WO9305552A1 WO 1993005552 A1 WO1993005552 A1 WO 1993005552A1 GB 9201643 W GB9201643 W GB 9201643W WO 9305552 A1 WO9305552 A1 WO 9305552A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
socket
electrical connector
adaptor
carrier member
Prior art date
Application number
PCT/GB1992/001643
Other languages
French (fr)
Inventor
Richard Drewnicki
Original Assignee
Richard Drewnicki
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Richard Drewnicki filed Critical Richard Drewnicki
Priority to US08/204,268 priority Critical patent/US5474464A/en
Priority to DE69206998T priority patent/DE69206998T2/en
Priority to EP92918940A priority patent/EP0603241B1/en
Publication of WO1993005552A1 publication Critical patent/WO1993005552A1/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R31/00—Coupling parts supported only by co-operation with counterpart
    • H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R27/00—Coupling parts adapted for co-operation with two or more dissimilar counterparts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/6608—Structural association with built-in electrical component with built-in single component
    • H01R13/6633—Structural association with built-in electrical component with built-in single component with inductive component, e.g. transformer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/68—Structural association with built-in electrical component with built-in fuse
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S439/00—Electrical connectors
    • Y10S439/956—Electrical connectors with means to allow selection of diverse voltage or polarity

Definitions

  • the invention relates to an electrical adaptor or connector of the kind used by international travellers to enable the connection of electrical appliances conforming to one standard of plug configuration to electrical outlets or sockets formed to receive plug conforming to a different standard.
  • an electrical adaptor comprising a body, one end of which is provided with a plurality of alternative sets of connector pins, another portion of the body being provided with several alternative sets of sockets. If desired two or more of the sets of sockets may be common.
  • the body is cylindrical and the connector pins are disposed at one axial end of the cylindrical body.
  • the socket portion is provided at the other axial end of the cylindrical body.
  • the different socket combinations and/or the different connecting pin combinations may be brought into use by relative rotation between the body and disc-like members at one or both ends of the cylindrical body.
  • disc-like members at the ends of the main body member may be detached and reconnected to the main body member (e.g. by plug and socket connections) in different rotational orientations to bring the different sockets and/or pins into operation.
  • the axial length of the cylindrical body is relatively short in comparison with its diameter to reduce its overhang in use in a wall socket and to improve the connection between the adaptor and the wall socket.
  • This relatively short axial length may be achieved by arranging the connecting pins, when not in use, to be disposed transverse to the longitudinal axis of the adaptor and to be movable into a working position in which they extend in a substantially axial direction from one axial end of the adaptor body.
  • a voltage transformer may be provided e.g. in the body or in a separate cylindrical housing which can be connected to the cylindrical body of the adaptor, to adapt the voltages of electrical appliances to that of the local country of use.
  • the transformer will be capable of both stepping up the operating voltage or stepping down the voltage as is required simply by plugging it to the adaptor differently e.g. at opposite ends.
  • the adaptor may be fused if desired.
  • the device will have four or more socket configurations and four or more pin configurations.
  • the adaptor may be arranged to prevent the use of certain permutations of socket and plug e.g. U.K. configuration in to U.K. configuration out and the like.
  • Figure 1 is an exploded perspective view of one embodiment of electrical adaptor in accordance with the invention.
  • Figure 2 is an exploded perspective view of the adaptor of Figure 1 taken from the opposite end;
  • Figure 3 is a side view of the electrical adaptor of Figures 1 and 2;
  • Figure 4 is an end view of the adaptor of Figures 1 to 3;
  • Figure 5 is a view of the other end of the adaptor of Figures 1 to 3;
  • Figure 6 is a cross section of the adaptor taken on the line X-X of Figure 5;
  • Figure 7 is a cross section of the adaptor taken on the line Y-Y of Figure 5, and
  • FIG 8 is an interior view of the adaptor viewed in the same sense as Figure 5, with the carrier member and cover removed.
  • an electrical adaptor or travel plug 1 moulded from plastics and consisting of a main cylindrical housing or body 2, the opposite axial ends of which adaptor are respectively formed as a four-way socket 4 and as a four-way plug 5.
  • the body is of relatively large diameter in relation to its axial length so that, in use, it does not overhang from a wall socket to an extent such that it tends to pull out of the socket under its own weight.
  • the cylindrical body 2 is hollow and houses first and second sets of electrical contacts 8 and 9 respectively which are spring loaded by means of contact springs 21 and 13 respectively, (which may be coil springs but are preferably leaf springs) the contacts being mounted in box ⁇ like formations 22 (see Fig 2) moulded integrally into the • interior of the cylindrical body 2.
  • the cylindrical body 2 is closed by a disc-like cover member 3 formed with apertures 17 through which the second set of contacts 9 are exposed.
  • the first set of contacts 8 are exposed via corresponding apertures formed in the end wall 18 of the cylindrical body and covered by a shutter 14 urged by a spring 19 to cover the said first contacts.
  • the first and second sets of contacts are connected together by means of an electrical connection 11 which connects together the neutral first and second contacts and by an electrical connection 12 which connects the first and second live contacts.
  • an electrical connection 11 which connects together the neutral first and second contacts
  • an electrical connection 12 which connects the first and second live contacts.
  • a fuse and holder assembly 10 is interposed in the electrical connection 12 and is accessible through an aperture 20 in the cover 3.
  • Means (not shown) are provided to fix the cover 3 stationarily against the body whereby the body and cover are not relatively rotatable. This means may take any suitable form, e.g a projection engaging a notch for example.
  • the socket end 4 and the plug pin end 5 of the adaptor are formed as respective disc-like plates 23, 24 which are rotatable on the body about a centrally disposed pivot pin 16, (see Fig 1) .
  • a detent member 15 is mounted in a cavity in the body 2 and comprises a compression spring which urges balls located at its respective ends into contact with detent recesses in the disc-like plates 23, 24 whereby the plates can be positively indexed through increments of 90° with respect to the body 2 to bring the• respective sets or arrays of sockets and respective sets or arrays of plug pins into their operative positions in which they are aligned with the respective sets of contacts 8 and 9.
  • the apertured socket end plate 23 is formed with four sets of socket apertures 16 disposed mutually at 90° to one another and may, for example comprise a U.K. set, a continental European set, a United States and Canadian set and an Australian and New Zealand set. It will be seen from Figure 1 that those sockets in the inoperative position are blanked-off by the end wall 18 of the body 2.
  • the plug end or carrier plate 24 is provided with four sets of plug pins 7 disposed mutually at 90° to one another and corresponding to the sockets sets mentioned above.
  • the plug pins 7 are hinged to the plate 24 at 25 so as to be pivotable from non-operative positions in which they lie flat against the -plate as shown in Figure 2 to a working position in which they extend at right angles to the carrier plate 24 and substantially parallel to the axis of the adaptor as can be seen -for example in Figure 7.
  • Means are provided so that only those plug pins positioned in the operative position can be folded out so that the remaining sets of pins are positively retained in their non-working position. When, and only when, the pins are folded into their working position the hinged ends of the pins make contact with the sprung contact plates 9 to provide electrical contact between the pins and the contacts.
  • the contacts 9 are electrically connected to the first set of contacts 8 which are in turn contacted by the pins of a plug inserted into a selected one of the sets of sockets formed in the plate 23.
  • the end plates 23, 24 are provided with markings arranged to be aligned with corresponding markings on the body 2 so that it is readily possible to identify the working positions of the sockets and plug pins.
  • the adaptor provides and electrical connector capable of many different configurations so that it is generally applicable world-wide but which is nevertheless simple in construction and in use.
  • the particularly described adaptor provides a so called travel plug which provides a plurality of different socket options and a plurality of different plug pin options.

Abstract

An electrical adaptor or connector (1) comprising a housing (2), a carrier member (5) rotatably mounted on the housing, a plurality of selectable pin arrays (7) disposed on the carrier member and adapted whereby rotation of the carrier relative to the housing brings the pin arrays into their operative condition one at a time, and at least one socket array (6) on the housing. Preferably an apertured member (4) is rotatably mounted on the housing whereby rotation of the member (4) brings a plurality of socket arrays (6) into an operative condition, one at a time.

Description

TITLE; ELECTRICAL ADAPTOR DESCRIPTION
Technical Field
The invention relates to an electrical adaptor or connector of the kind used by international travellers to enable the connection of electrical appliances conforming to one standard of plug configuration to electrical outlets or sockets formed to receive plug conforming to a different standard.
Background Art
It is known to provide such devices, see for example European Patent - B-0156076.
It is an object of the invention to provide a device of the kind aforesaid which is relatively simple in construction but which nevertheless enables a greater range of permutations than was heretofore available.
Disclosure of Invention
According to the invention there is provided an electrical adaptor comprising a body, one end of which is provided with a plurality of alternative sets of connector pins, another portion of the body being provided with several alternative sets of sockets. If desired two or more of the sets of sockets may be common.
Preferably the body is cylindrical and the connector pins are disposed at one axial end of the cylindrical body. Preferably the socket portion is provided at the other axial end of the cylindrical body. If desired the different socket combinations and/or the different connecting pin combinations may be brought into use by relative rotation between the body and disc-like members at one or both ends of the cylindrical body. Alternatively disc-like members at the ends of the main body member may be detached and reconnected to the main body member (e.g. by plug and socket connections) in different rotational orientations to bring the different sockets and/or pins into operation.
Preferably the axial length of the cylindrical body is relatively short in comparison with its diameter to reduce its overhang in use in a wall socket and to improve the connection between the adaptor and the wall socket. In this connection it is a disadvantage of some known travel plugs that they are relatively long so that the inherent weight of the device causes them to tend to pull out of connection in use. This relatively short axial length may be achieved by arranging the connecting pins, when not in use, to be disposed transverse to the longitudinal axis of the adaptor and to be movable into a working position in which they extend in a substantially axial direction from one axial end of the adaptor body.
If desired a voltage transformer may be provided e.g. in the body or in a separate cylindrical housing which can be connected to the cylindrical body of the adaptor, to adapt the voltages of electrical appliances to that of the local country of use. Preferably the transformer will be capable of both stepping up the operating voltage or stepping down the voltage as is required simply by plugging it to the adaptor differently e.g. at opposite ends.
The adaptor may be fused if desired. Preferably the device will have four or more socket configurations and four or more pin configurations. The adaptor may be arranged to prevent the use of certain permutations of socket and plug e.g. U.K. configuration in to U.K. configuration out and the like.
Brief Description of Drawings
The invention is diagrammatically illustrated, by way of example, in the accompanying drawings in which:-
Figure 1 is an exploded perspective view of one embodiment of electrical adaptor in accordance with the invention;
Figure 2 is an exploded perspective view of the adaptor of Figure 1 taken from the opposite end;
Figure 3 is a side view of the electrical adaptor of Figures 1 and 2;
Figure 4 is an end view of the adaptor of Figures 1 to 3;
Figure 5 is a view of the other end of the adaptor of Figures 1 to 3;
Figure 6 is a cross section of the adaptor taken on the line X-X of Figure 5;
Figure 7 is a cross section of the adaptor taken on the line Y-Y of Figure 5, and
Figure 8 is an interior view of the adaptor viewed in the same sense as Figure 5, with the carrier member and cover removed. Best Mode for Carrying out the Invention In the drawings there is shown an electrical adaptor or travel plug 1 moulded from plastics and consisting of a main cylindrical housing or body 2, the opposite axial ends of which adaptor are respectively formed as a four-way socket 4 and as a four-way plug 5. The body is of relatively large diameter in relation to its axial length so that, in use, it does not overhang from a wall socket to an extent such that it tends to pull out of the socket under its own weight.
The cylindrical body 2 is hollow and houses first and second sets of electrical contacts 8 and 9 respectively which are spring loaded by means of contact springs 21 and 13 respectively, (which may be coil springs but are preferably leaf springs) the contacts being mounted in box¬ like formations 22 (see Fig 2) moulded integrally into the • interior of the cylindrical body 2. The cylindrical body 2 is closed by a disc-like cover member 3 formed with apertures 17 through which the second set of contacts 9 are exposed. The first set of contacts 8 are exposed via corresponding apertures formed in the end wall 18 of the cylindrical body and covered by a shutter 14 urged by a spring 19 to cover the said first contacts. The first and second sets of contacts are connected together by means of an electrical connection 11 which connects together the neutral first and second contacts and by an electrical connection 12 which connects the first and second live contacts. In the case of the live connection a fuse and holder assembly 10 is interposed in the electrical connection 12 and is accessible through an aperture 20 in the cover 3. Means (not shown) are provided to fix the cover 3 stationarily against the body whereby the body and cover are not relatively rotatable. This means may take any suitable form, e.g a projection engaging a notch for example.
The socket end 4 and the plug pin end 5 of the adaptor are formed as respective disc-like plates 23, 24 which are rotatable on the body about a centrally disposed pivot pin 16, (see Fig 1) . A detent member 15 is mounted in a cavity in the body 2 and comprises a compression spring which urges balls located at its respective ends into contact with detent recesses in the disc-like plates 23, 24 whereby the plates can be positively indexed through increments of 90° with respect to the body 2 to bring the• respective sets or arrays of sockets and respective sets or arrays of plug pins into their operative positions in which they are aligned with the respective sets of contacts 8 and 9.
The apertured socket end plate 23 is formed with four sets of socket apertures 16 disposed mutually at 90° to one another and may, for example comprise a U.K. set, a continental European set, a United States and Canadian set and an Australian and New Zealand set. It will be seen from Figure 1 that those sockets in the inoperative position are blanked-off by the end wall 18 of the body 2. The plug end or carrier plate 24 is provided with four sets of plug pins 7 disposed mutually at 90° to one another and corresponding to the sockets sets mentioned above. The plug pins 7 are hinged to the plate 24 at 25 so as to be pivotable from non-operative positions in which they lie flat against the -plate as shown in Figure 2 to a working position in which they extend at right angles to the carrier plate 24 and substantially parallel to the axis of the adaptor as can be seen -for example in Figure 7. Means are provided so that only those plug pins positioned in the operative position can be folded out so that the remaining sets of pins are positively retained in their non-working position. When, and only when, the pins are folded into their working position the hinged ends of the pins make contact with the sprung contact plates 9 to provide electrical contact between the pins and the contacts. As stated above the contacts 9 are electrically connected to the first set of contacts 8 which are in turn contacted by the pins of a plug inserted into a selected one of the sets of sockets formed in the plate 23. Preferably the end plates 23, 24 are provided with markings arranged to be aligned with corresponding markings on the body 2 so that it is readily possible to identify the working positions of the sockets and plug pins.
Industrial Applicability
Thus the adaptor provides and electrical connector capable of many different configurations so that it is generally applicable world-wide but which is nevertheless simple in construction and in use. The particularly described adaptor provides a so called travel plug which provides a plurality of different socket options and a plurality of different plug pin options.

Claims

CLAIMS 1. An electrical connector (1) comprising a housing (2) having at one end a plurality of selectable pin arrays (7) and at the other end a socket array (6) , characterised by a carrier member (5) rotatably mounted on the said one end of the housing (2) and on which the plurality of pin arrays (7) is disposed and adapted whereby rotation of the carrier (5) brings the pin arrays (7) into their operative condition one at a time.
2. An electrical connector according to claim 1, characterised by an apertured member (4) rotatably mounted on the said other end of the housing (2) and adapted whereby rotation of the apertured member brings a plurality of socket arrays (6) into an operative condition one at a time.
3. An electrical connector according to claim 1 or claim 2, characterised in that the pin arrays (7) are pivotably mounted at (25) on the carrier member (5) so as to be movable from inoperative positions in which they are retracted against the carrier member to operative positions in which they extend away from the carrier member.
4. An electrical connector according to any one of claims 1 to 3, characterised in that the housing (2) is generally cylindrical and in that the carrier member (5) and the apertured member (4) are disc-like and are co-extensive with the axial ends of the housing (2) .
5. An electrical connector according to claim 4, wherein the overall axial length of the housing (2,4,5) is less than its diameter.
6. An electrical connector according to any preceding claim, characterised by electrical contacts (9,8) resiliently mounted in the housing (2) adjacent to the carrier member (5) and to the apertured member (4) respectively and which are selectively exposed to different pin arrays (7) and socket arrays (6) on rotation of the carrier member (5) and apertured member (4) with respect to the housing (2) .
PCT/GB1992/001643 1991-09-10 1992-09-09 Electrical adaptor WO1993005552A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US08/204,268 US5474464A (en) 1991-09-10 1992-09-09 Electrical adaptor
DE69206998T DE69206998T2 (en) 1991-09-10 1992-09-09 ELECTRIC ADAPTER
EP92918940A EP0603241B1 (en) 1991-09-10 1992-09-09 Electrical adaptor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9119290.6 1991-09-10
GB919119290A GB9119290D0 (en) 1991-09-10 1991-09-10 Electrical adaptor

Publications (1)

Publication Number Publication Date
WO1993005552A1 true WO1993005552A1 (en) 1993-03-18

Family

ID=10701162

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1992/001643 WO1993005552A1 (en) 1991-09-10 1992-09-09 Electrical adaptor

Country Status (8)

Country Link
US (1) US5474464A (en)
EP (1) EP0603241B1 (en)
AT (1) ATE131963T1 (en)
AU (1) AU2504692A (en)
DE (1) DE69206998T2 (en)
ES (1) ES2083761T3 (en)
GB (1) GB9119290D0 (en)
WO (1) WO1993005552A1 (en)

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DE3109620A1 (en) * 1981-03-13 1982-09-23 Manfred Dr. 8520 Erlangen Herbst Worldwide travel-plug adapter
WO1986004457A1 (en) * 1985-01-22 1986-07-31 Bergkemper Jens Lothar Adapter for electric apparatus
WO1987004570A1 (en) * 1986-01-20 1987-07-30 Heinrich Kopp Gmbh & Co. Kg Electric connector (adapter)

Cited By (10)

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Publication number Priority date Publication date Assignee Title
GB2296390A (en) * 1994-12-12 1996-06-26 Lee Chiu Shan Dual voltage electrical socket devices
GB2296390B (en) * 1994-12-12 1999-06-09 Lee Chiu Shan Dual voltage electrical socket devices
EP0927442A1 (en) * 1995-12-15 1999-07-07 Michael S. Mead Universal plug adaptor
EP0927442A4 (en) * 1995-12-15 1999-11-10 Michael S Mead Universal plug adaptor
GB2345807A (en) * 1999-01-18 2000-07-19 Tat Kwong Cheung An electrical connector adaptor
GB2345807B (en) * 1999-01-18 2000-11-29 Tat Kwong Cheung A universal adapter
FR2912001A1 (en) * 2007-01-26 2008-08-01 Xyz Science Co Ltd Adapter for establishing electrical connection between connectors and sockets of different specifications has coupling side having rectangular grounding terminal made from insulation material and is pivotally connected to desired location
GB2484145A (en) * 2010-10-01 2012-04-04 Gen Jack Technology Ltd Universal electric adapter
GB2484145B (en) * 2010-10-01 2013-11-27 Gen Jack Technology Ltd Universal electric adapter
CN102457001A (en) * 2010-10-27 2012-05-16 廖文镛 Rotary-disc compound socket structure

Also Published As

Publication number Publication date
ATE131963T1 (en) 1996-01-15
US5474464A (en) 1995-12-12
AU2504692A (en) 1993-04-05
EP0603241A1 (en) 1994-06-29
GB9119290D0 (en) 1991-10-23
ES2083761T3 (en) 1996-04-16
DE69206998D1 (en) 1996-02-01
EP0603241B1 (en) 1995-12-20
DE69206998T2 (en) 1996-05-23

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