WO2014165886A2

WO2014165886A2 - Charging connection device for electric vehicles

Info

Publication number: WO2014165886A2
Application number: PCT/AT2014/050083
Authority: WO
Inventors: Gerhard WEIDINGER
Original assignee: Keba Ag
Priority date: 2013-04-09
Filing date: 2014-04-09
Publication date: 2014-10-16
Also published as: WO2014165886A3; DE102013103515A1

Abstract

The invention relates to a charging connection device (1) for electric vehicles (V), having at least one input interface (3) for feeding electric power from a fixed-location power supply network (M) into the charging connection device (1), having at least one charging interface (5) for the controlled discharge of electric power to an electric vehicle (V), having a plurality of electrotechnical components comprising an electronic control device (9) for switching, measuring or monitoring the electric power picked up and/or discharged, and having a housing (2) enclosing the electrotechnical components. The charging connection device (1) has a mechanical control lock (8) for regulating usage rights for the charging connection device (1), or charging connection device (1) is provided for the retrospective assignment as necessary of a mechanical control lock (8) for the regulation of usage rights. The control lock (8) is at least predominantly inserted into a receiving depression formed in the housing surface (16) or can be inserted into the same. The receiving recess is formed as a liquid-tight or spray-water-protected barrier between the outer side and the interior (19) of the housing (2).

Description

Charging connection device for electric vehicles

The invention relates to a charging connection device for electric vehicles, as indicated in claim 1.

It is well known that to charge or regenerate the energy storage of an electrically powered vehicle such a vehicle is turned off for a certain time and electrically connected to an electrical energy source, usually the local power grid. Modern electric vehicles now have an acceptable range of several 100km, which can be covered with a fully charged energy storage, and also a correspondingly high drive power in the order of up to 100kW, which allows comfortable and rapid movement.

Compared to vehicles, which use internal combustion engines for propulsion and fueled during a very short downtime usually with a liquid or gaseous energy carrier, the charging process of today usual for electric vehicles electrochemical energy storage takes relatively long. In order to improve the service life or availability of an electric vehicle, it is therefore strived to keep the charging time as short as possible, for which, however, considerable electrical power is required during the charging process. This must be purchased from the electrical network, typically converted via the charging electronics in the vehicle and finally transferred to the energy storage of the vehicle. The magnitude of the charging power today is in the range up to about 22kW and is thus significantly higher than the electrical power, which can be obtained, for example, from a conventional household socket. Electrically powered motor vehicles thus represent large consumers in comparison to other domestic consumers. Even if a power connection with in principle sufficiently high electrical connection power is available, it can lead to time- or situation-dependent restrictions due to the overall load in parts of the power network come at the actual available power. For the charging of electric vehicles - as far as it is not small vehicles in the manner of an electric bicycle or comparable - therefore special Ladean- ss devices are required or at least useful, which in contrast to a conventional socket not only a correspondingly high electrical Provide or can provide connection power, but also have additional communication means by which the charging electronics of a connected vehicle can determine the actual respectively obtainable charging power or can respond to the current network situation, without overloading the network or the supply line and thus a shutdown cause. Furthermore, a number of safety devices are implemented in such charging connection devices, for example a blocking device which prevents unauthorized disconnection or unplugging under full load with appropriate arcing. The corresponding charging connection devices typically also ensure that, when fault currents occur, in the event of overload and occasionally in the case of impermissible feedback currents, the signal is switched off or signaled accordingly.

Such charging terminal devices may further include means for authorization of the energy purchase, for example via a coded RFID transponder or via a key switch, or comprise technical means to identify the user or to collect information for billing purposes and, where appropriate, this data via data technology Exchange network connections with central clearing offices. Furthermore, such charging terminals may also include means for measuring and monitoring the transmitted power, the current, or the amount of energy. Due to the high power to be transmitted, the power connection, both on the power side and on the vehicle side, is generally designed as a three-phase or multi-phase power connection with correspondingly large cable cross-sections of typically 4 to 6 mm ² , but occasionally up to 16 mm ² . Conveniently, the charging ports are installed in close proximity to the parking spaces of the respective electric vehicles, which are usually garages, underground garages, covered parking areas and the like, which may be private, but occasionally also publicly accessible or at least accessible to a larger group of people ,

Such charging connection devices are described, for example, in the publications US Pat. No. 4,532,418 A, DE 42 13 414 C2, FR 2 766 950 A1, JP 11-122714 A, US Pat. No. 6,362,594 B2, WO 2007/141543 A2, WO 2010/013545 A1, WO 2010/133959 A2 and AT 507 605 AI described, the latter document discloses a charging station system for electric vehicles, in which a mobile, user-side function module via a lock and an associated key with a fixed Base unit can be theft-proof locked or connected.

After generic charging connection devices for electric vehicles are often arranged in public places or in generally accessible places, there is also the desire for a limitation of rights of use or after a review of the authorization in relation to a use of the charging connection device. Not least can be prevented by such authorizations, the unauthorized handling or unauthorized power reference or kept as possible backward. In addition to avoiding unauthorized operator actions or electricity purchases, it is occasionally also desirable for an authorized group of persons to be able to gain as easy an access to the functionalities of the charging connection device as possible.

The present invention is therefore based on the object to provide a charging connection device for electric vehicles, which offers an easy-to-use for the authorized user access control or usage regulation. In addition to the simplest possible handling, this access or usage control should be trouble-free and intuitive to use. Regardless of this, a further object of the invention is to be able to implement a regulation of usage rights as technically as uncomplicated and practicable as possible in the charging connection device or, if necessary, to be able to retrofit it. This object of the invention is achieved by a charging connection device with the technical features according to claim 1.

An advantage achieved by the measures according to claim 1 lies in the fact that such a charging connection device is well protected against unauthorized use and an authorized person or an authorized group of persons can quickly and easily use and / or unlock the functions of the charging connection device. As a release agent namely a key is provided, which is absolutely intuitive in its handling for a general group of people and its operation is self-evident. In particular handling a mechanical key familiar to an unlimited number of people. A significant advantage of a lock compared to electronic authorization systems, such as electronic code locks or transponder systems, also lies in the fact that in particular standardized locking locks can also be implemented by the end user or user if necessary, and it is therefore unnecessary that a special programming operation must be made , Programming processes for the implementation or modification of functions are only partially satisfactory or only partially suitable for individual groups of people. A particular advantage of the embodiment of the invention is that the typically metallic, in the receiving recess required s used or inserted into the receiving recess lock by the inventive measures no risk or cause any electrical insulation problems. In particular, the typically metallic locking lock is reliably and completely delimited from voltage-carrying components or lines in the housing of the charging connection device. Accordingly, a spritzwas sergeschützten charging connection device can be provided, which is unlocked by means of a mechanical lock and a matching mechanical key or secured against unauthorized use. In addition, there is a high level of protection against insulation faults or electric shocks, or the penetration of moisture into the interior of the housing, starting from the mechanical lock, is reliably prevented. The freedom from interference and also the personal safety of the charging connection device is thereby significantly favored. This particular because the respective position, in particular the locking and / or the release position of the mechanical

Lock, which is preferably formed by a cylinder lock or a profile cylinder is detected by the non-contact or activatable, electronic or electro-mechanical detection device. Evaluation or detection results of the detection device or the associated control device correlate with states or positions of the mechanical, key-operated lock. The respective evaluation or detection results can then be processed by the control device of the charging connection device according to the situation or reliably implemented. In addition to high functional reliability, personal safety and fault security, a particularly practicable and intuitive operation or verification of the authorization can be achieved. A further advantage of the measures according to the invention lies in the fact that, due to the at least partial, but preferably predominant reception or embedding of the lock in the receiving recess, a prominent projecting of the lock against the housing surface is prevented or marginal. As a result, the robustness of the charging device is significantly increased, especially when its housing is designed as a plastic housing. In particular, distinctly protruding elements are thereby avoided, so that in addition to an appealing visual appearance, above all the risk of housing breaks or damage to the charging connection device is held back. Furthermore, it is ensured by the inventive design of the charging connection device to a large extent that the handling persons are reliably protected from contact with live parts in the interior of the housing or against life-threatening electric shock. In addition, the housing protects the internal electrical and electronic components from mechanical damage, as well as from dirt and moisture and other expected in the environment of vehicles substances, such as road salt or comparable acting thawing agents, thus ensuring their long-term reliable function.

Also advantageous are the measures according to claim 2, since a direct mechanical see coupling of the detection device for mechanical lock avoided and the actuation information can be detected without contact through the unbroken closed wall of the receiving recess, which on the one hand stay tightness problems of the housing of the charging device and on the other hand a galvanic isolation is ensured. In addition, the accuracy of such position detection sensors or condition detectors is sufficient to the respective position, in particular the lock and / or Entsperrzu state of the mechanical lock sufficiently accurate and reliable to detect. In any case, there is no need for any galvanic or electrically conductive connection between the typically metallic lock and the inside of the housing. Housing the charging connection device arranged electrotechnical components are present after the electronic or electro-mechanical detection device operates without contact or no electrically conductive connection to the mechanical lock exists or is required.

Another advantage is the further development measures according to claim 3, as a reliable or fail-safe as possible detection of the respective switching or operating position of the mechanical lock is guaranteed. In particular, faulty detections or impermissible intermediate positions or faulty lock positions can be detected in a simple manner by evaluating the signals of the detection device.

By the measures according to claim 4, a well-protected or quasi-integrated receptacle for the mechanical lock can be created so that markedly projecting portions are avoided on the outer surfaces of the housing of the charging connection device. In addition, this creates a reliable and inexpensive feasible seal between the interior of the housing of the charging connection device and the periphery or the external environment of the housing. In particular, a separate sealing effort or a gradual leak is avoided by avoiding breakthroughs or gaps. By making the recording recess or its boundary walls made of plastic, moreover, a cost-effective and efficient production can be achieved. The emergence of an unintentional conductive connection due to penetrating moisture or due to other liquids, such as lubricants for the lock, is reliably prevented by the penetration-free design of the wall of the receiving recess.

Also of advantage are the measures according to claim 5, since a stable or robust attachment of the receiving recess forming receiving body is made possible. In particular, the retaining collar provides a sufficiently large surface for the permanent and at the same time efficient bonding and sealing of the receiving body with the inside of the housing. In addition, a cost-effective and simple and trouble-free production of the housing of the charging connection device is thereby achieved. In particular, the separate training of a host body to define the reception Well structurally relatively simple injection molds allows and relatively process-stable manufacturing processes achievable.

Of particular advantage are the measures according to claim 6, as a relatively simple individualization or assignment of user rights can be made. In particular, this also makes it possible for the end user to individually procure a standard cylinder lock, which corresponds to increased safety requirements or sufficient unique requirements, and to assign it to the corresponding charging connection device with user rights to be protected. By multiple keys or by a key transfer an uncomplicated authorization transfer to a limited, authorized group of people is possible. Also, a reassignment or a lock of previous rights of use is easily possible by a simple replacement of the standardized cylinder lock. In particular, the rights of use for the charging connection device can be limited to a certain group of people in a simple and reliable way, or subsequently changed by an authorized person uncomplicated.

Another advantage are the measures according to claim 7, as a tool-free mounting option for the lock is supported in a simple manner. In particular, this also makes it possible for a layperson or end user to insert an individual or possibly unique locking lock with a standard design into the receiving recess and to position it correctly, thereby securing the charging connection device against unauthorized use. By means of the latching device, a clear, tactile feedback can be transmitted to the corresponding person, so that a subsequent implementation of the latching lock is as fail-safe and uncomplicated as possible.

Also of advantage are the measures according to claim 8, as this ensures the mechanical lock against unauthorized removal from the receiving recess. In particular, a so-called pull protection can be constructed by mechanically blocking or engaging behind the protruding from the profile cylinder actuating lug of the profile cylinder, which prevents unauthorized removal of the lock or cylinder lock. Only by inserting a suitable key and by transferring the lock in a Montagebzw. Special position in which the actuating lug within the outer boundary of the Profile cylinder is located, a removal of the entire profile cylinder can be made from the receiving recess or an exchange of the profile cylinder can be made. Such interventions can therefore only be carried out by authorized persons with a key suitable for the lock. Unauthorized changes are thereby prevented or greatly impeded in a simple and reliable manner. It is particularly advantageous if the lock without additional tools used only with the aid of the key in the receiving recess secured against unauthorized removal and, if necessary, only with the aid of the key - but again completely without tools - can be removed again.

Also advantageous are the measures according to claim 9, characterized in that between the mechanical lock and the detection device, a donor element is arranged, which can increase the distance between the metallic parts of the mechanical lock and the detection device or form an additional insulation or decoupling element , This donor element can further fulfill the purpose of transmitting the movement of the actuating lug of the locking lock to dedicated marking elements which activate or reliably influence the electronic or electromechanical detection device without contact. Such marking elements may be, for example, optically detectable markers, permanent magnets or inductively or capacitively detectable materials. In addition, by the donor element despite standardization or standardization depending on the manufacturer present tolerances or structural features of the

Locking lock, in particular the actuating lug, be leveled, whereby a reliable detection of the blocking and / or release position can be ensured regardless of such structural tolerances.

Another advantage is also a development according to claim 10, since the magnetic field of the permanent magnets can be reliably detected and thereby with simple sensory means, in particular with reed contacts or Hall sensors, a reliable detection of the relevant positions, in particular the blocking position and / or the Release position of the mechanical lock can be achieved. According to an advantageous measure, it may be provided that the two permanent magnets are aligned substantially antiparallel with respect to their magnetic field and thus the magnetic field in the region between the two Permanent magnet is at least partially compensated. This improves the reliability of the detection of the actuating or actuating positions of the lock.

However, the measures according to claim 11 are also of advantage since a standard mechanical lock can be converted into a key switch with a defined required actuation force or spring-loaded resetting effect. In addition, with simple spring means, for example a leg spring, it can be achieved that the mechanical locking lock is pivoted back into the blocking or rest position, starting from the release or unlocking position to be actively activated, as soon as the actuating force is eliminated. According to an expedient embodiment, it may be provided that the key can only be removed from the lock when the lock or rest position is taken.

Also of advantage are the measures according to claim 12, since thereby liquids entering the receiving recess or accumulated therein can not cause any malfunctions or impairment of the function of the locking mechanism. In addition, a spritzwassertaugliche or outdoor-compatible design of the charging terminal device is achieved, although a mechanical lock with a liquid-permeable key channel is a functional component of the charging device.

Construction or mounting advantages are achieved by the measures according to claim 13. In particular, this allows the most cost-effective and functionally reliable construction of the detection device and sufficiently accurate and stable positioning of the sensor or sensors. Nevertheless, the mechanical locking lock and the detection device associated with the mechanical lock remain in a reliable manner isolated from each other in isolation or galvanic isolation.

Also of advantage are the measures according to claim 14, as a rapid or uncomplicated assembly and disassembly of the lock against the receiving recess is made possible in the charging connection device. In particular, the characteristic of an installation or assembly position inherent in a profile cylinder is thereby utilized in order to assemble this profile cylinder quickly and easily, or if necessary also to remove it again. to be able to take. In the locked or initial position and in the release position of the lock, but usually also in the intermediate actuating positions of the lock, the actuating lug of the lock protrudes from the outer surfaces of the profile cylinder and is characterized given a stable, mechanical pulling protection, the unwanted Pulling out the lock from the receiving well reliably prevented.

Also of advantage are the measures according to claim 15, since a relatively simple housing for the charging connection device can be made, in particular can be injection molded from plastic. The receiving recess relative to the corresponding wall of the housing is formed by a structurally independent, exemplary cup-shaped receiving body. Due to the adhesive bond between this independent receiving body and the corresponding housing component of the charging device, a rational increase in the number of variants or a simple optional retrofittability of the key switch is also made possible. In addition, a particularly reliable and liquid-tight delimitation of the receiving recess relative to the interior of the housing is possible with such an adhesive connection.

Of particular advantage are the measures according to claim 16, as a cost-effective production is possible even in small to medium quantities. However, a particular advantage of these measures lies in the fact that the metal locking lock can be reliably protected against live components in the interior of the housing of the charging connection device. In addition to this contact contactor but also a high insulation class in terms of water spray can be achieved, so that, despite the installation of a mechanical key, an unproblematic use of the charging connection device for outdoor installations is possible. In particular, a high protection class (IP class, English Ingress Protection) for contact and foreign body protection as well as a high water and moisture protection can be achieved. Also advantageous are the measures according to claim 17, as this the mechanical lock or the detection device only has an input or command function and the control device is responsible for implementing the detected control commands. In particular, this allows the locking lock or the detection device to be signaled technical or control-cycle functions can be reduced and the processing of the respective signals or the further sequence of the control device and optionally actuated therefrom actuators, such as contactors or relays implemented. Also of advantage are the measures according to claim 18, since the implementation of a key switch function, the handling of the charging connection device is favored. In particular, the control device can thereby control or influence the activation time and the usage sequence in a simple manner. In particular, by virtue of this, the mechanical lock acts primarily as a command-protected command element or as a simple input element with a key switching function. The control device then determines, depending on the actuation or setting state of the mechanical lock, the corresponding sequences or follow-up actions in accordance with the functionalities stored in the software. For example, it can be provided that the charging process of a vehicle connected to the charging connection device can only be started by a single, brief actuation of the key switch. It is useful if the

Charging is continued even after releasing the key switch and removing the key until charging is completed or the vehicle is disconnected from the charging station. Finally, the measures according to claim 19 are of particular advantage. This makes it possible that an end user or a dealer of the charging connection device can install a mechanical lock, which is issued person-specific or is unique and unmistakable. In particular, an end user or a retailer can thereby use a lock which has a lock or key number known only to him. Thus, a high level of security against foreign or double closures can be achieved. A significant advantage is also that no electrical knowledge is required to implement the blocking and release functionality of the mechanical lock in the functional sequences of the charging connection device. About one of the receiving recess standard or precaution assigned detection can immediately after the onset of the mechanical lock and a possible release of this key or lock-lock option of the charging device according to the invention a key switch functionality are assigned. However, the measures according to claim 20 are also of advantage in particular, as a result of which a kind of "plug-and-play" function is achievable for a simple self-installation without the requirement of electrotechnical knowledge and increased dexterity requirements The person implementing the mechanical lock, since no intervention in the interior of the housing or in the wiring of the charging connection device is required.A mechanical lock corresponding to its design to regulate usufructuary use only in the receiving recess and against falling out or against removal The safeguard against falling out or removal can be effected according to an advantageous embodiment by simply transferring the locking lock into the rest or blocking position, as has already been explained above.

For a better understanding of the invention, this will be explained in more detail with reference to the following figures.

In each case, in a simplified, exemplary representation:

1 shows a charging system comprising a charging connection device designed according to the invention, to which an electric vehicle for a charging process can be connected by means of a cable connection;

2 shows the charging connection device according to FIG. 1 in a perspective view of FIG

Housing back;

Fig. 3 for an electromechanical locking and unlocking provided sub-components of the charging connection device of FIG. 1;

Fig. 4, the functional components acc. Fig. 3 with removed, mechanical lock lock;

5 shows the locking and unlocking components according to FIG. 3 in exploded view and with an optional mounting aid for a structurally independent mounting. distribution or with an optional blanking cover if the lock function is not used;

6 shows the blocking and unlocking components of the charging connection device in exploded view.

By way of introduction, it should be noted that in the differently described embodiments, the same parts are provided with the same reference numerals or the same component designations, wherein the disclosures contained in the entire description can be mutatis mutandis to identical parts with the same reference numerals or component names. Also, the location information chosen in the description, such as top, bottom, side, etc. related to the immediately described and illustrated figure and these position information in a change in position mutatis mutandis to transfer to the new location. FIGS. 1 and 2 illustrate an embodiment of a charging connection device 1 for electric vehicles V, which charging connection device 1 is equipped according to the invention or which can carry out operation-relevant control and control processes. This charge connection device 1 is provided for charging or regenerating the energy store A of an electrically operable vehicle by electrically connecting the charge connection device 1 with the energy store A or the charging electronics E of the electric vehicle V. The charging connection device 1 is to be understood as a reference source for electrical energy, via which electrical energy in the at least one energy storage A of an electric vehicle V can be transmitted. The charging connection device 1 provides, above all, when the charging electronics E is installed on the vehicle side, a kind of smart charging station for electric vehicles V. If necessary, it is also possible to assign the charging connection device 1 a charging electronics or to integrate in the charging connection device 1 a charging electronics, which the input side fed electrical energy into a suitable for the charging of the energy storage A in the electric vehicle V or adapted form converts and provides.

The charging connection device 1 comprises a plurality of electrotechnical components, which are enclosed by a multi-part housing 2. These electrical components also include electronic components or assemblies. The electrotechnical components serve for switching and / or distributing and / or measuring and / or monitoring the recorded and / or the emitted electrical energy. Depending on the embodiment of the charging terminal device 1, the electrotechnical components may comprise at least one component selected from the group of components comprising contactor, residual current circuit breaker, relay, terminal, electronic circuit and the like. The electrotechnical components also include electronic components. The electrotechnical components may comprise at least one so-called printed circuit board or printed circuit board, on which a plurality of electronic components are arranged, which are capable of controlling and / or measuring and / or monitoring the energy states at the charging terminal device 1 or in the latter Electric vehicle V are provided.

The charging connection device 1 has at least one input interface 3 for the supply or supply of electrical energy from a fixed power supply network M. In particular, the charging connection device 1 is supplied with the electrical energy required for forwarding to a connected electric vehicle V via this input interface 3. The input interface 3 is designed as a line interface, which is preferably provided for connecting cable cores. In order to be able to transfer the typically required electrical power to or into the charging connection device 1, cable cross-sections of between 4 to 16 mm ² are usually provided. The input interface 3 thus acts as a connection point for an electrical supply line 4 from the local or domestic power supply network M. The electrical energy is in this case of a single-phase or preferably multi-phase power supply network M with standardized or household standard mains voltage, ie for example in the European area in height of 230 V AC or 400 V AC. By way of example, it is also possible to provide the side walls or the rear wall and / or the bottom plate of the housing 3 with at least one cable feed-through for the electrical supply line 4.

The charging connection device 1 furthermore comprises at least one charging interface 5, 6 for the controlled or controlled delivery of electrical energy to an electric vehicle V connected thereto. This charging interface preferably comprises at least one Socket 7. In particular, the charging interface 5 of the charging connection device 1 comprises at least one receptacle 7, to which a charging cable C with a corresponding connector PI is connected as needed and on request from the charging device 1 again detachable or uncoupled. By means of the charging cable C and the plug PI connected thereto, the electrical energy provided or respectively available from the charging connection device 1 can be transmitted to an electric vehicle V connected thereto. At the second end of the charging cable C, a plug P2 may be provided which can be coupled with a corresponding socket on the electric vehicle V, if necessary, in order to be able to establish an electrical line connection between the charging connection device 1 and the charging electronics E or the energy store A in the electric vehicle V. , Instead of a plug P2 for as needed coupling and uncoupling of the charging cable C with respect to the electric vehicle V, it is also possible that the charging cable C is fixed or permanently connected to the electric vehicle V or with its charging electronics E. Alternatively or in combination with this, a fixed cable outlet or a charging cable (not shown) connected to the charging device 1 can also be formed, which extends to the charging interface 6-FIG. 2.

In Fig. 1, an embodiment of a generic charging connection device 1 with a mechanical lock 8 is exemplified and illustrated schematically. The mechanical locking lock 8 is in this case formed on the charging connection device 1, around a

Regulation of rights of use for the charging device 1 to allow. In particular, the mechanical lock 8 is provided to limit a power or energy reference to an authorized group of people or to a single authorized person. In particular, the charging connection device 1 via the locking lock 8 and a corresponding mechanical key - not shown - in their functionality can be unlocked or blocked. Thus, it is possible that only the owner of a key suitable for locking lock 8 from the charging connection device 1 draw electrical energy and thus can charge the energy storage A of an electric vehicle V. Via the mechanical lock 8 or by means of a matching key, unrestricted rights of use or limited rights of use or adjustment rights with respect to the functionality or usability of the charging connection device 1 can therefore be regulated. In particular, it may be provided that after actuation or switching of the lock 8 by means of a suitable, mechanical key at the charging interface 5, 6 electrical energy gie for charging the energy storage A of an electric vehicle s V is provided or can be obtained from the electric vehicle V.

Among other things, this regulation of rights of use is managed by the dashed lines indicated, arranged in the housing 2 of the charging connection device 1 control device 9 control technology or controlled. If the control device 9 recognizes the presence of usage rights on the basis of a predefined change or actuation of the lock 8, the possibility of an energy reference is released. On the other hand, in the absence of usage rights, the control device 9 denies or prevents such an energy supply. For this purpose, the control device 9 is connected to at least one power switch, such as a contactor, a relay or a semiconductor power switch. With such power switches controlled by the control device 9, the energy reference at the charging interface 5 or 6 can be selectively released or prevented inter alia as a function of the presence or absence of usage rights.

The mechanical lock 8 is preferably a control-technical input or. In particular, the mechanical lock 8 is provided as a signaling or input element for a release control command. The mechanical lock 8 is thus signal-technically coupled to the control device 9. A previously mentioned circuit breaker represents an actuator connected to the control device 9, which releases the electrical energy at the charging interface 5, 6 as a function of the command or signal state of the mechanical locking lock 8 or for a reference to the charging interface 5, 6 releases. An energy supply from the charging connection device 1 or a connection of the electrical voltage at the charging interface 5, 6 typically only takes place when a proper connection to an electric vehicle V or to its charging electronics E has been established and recognized by control technology. The mechanical lock 8 is preferably formed by a cylinder lock 10 of standardized design, in particular by a half-cylinder lock. The lock 8 is preferably embedded in the housing 2 of the charging device 1 or subsequently assigned, in particular retrofitted. The installation position or mounting position of the me- Chanic lock 8 is such that its front end face 11 is flush or approximately flush with a boundary surface 12 of the housing 2. By way of example, the boundary surface 12 is defined by the front wall surface of the housing 2.

As best seen in FIGS. 3 to 6, this boundary surface 12 may be formed by a cover plate 13, which may constitute a retrofittable or optional subcomponent of the housing 2. Especially when the locking lock 8 is provided as a retrofittable option for an already delivered or installed charging connection device 1, this cover plate 13 can be provided as a replacement or replacement element for a blind cover 14 - Fig. 5 -. In particular, in the case of a retrofit, the blind cover 14 is removed from the housing 2 of the charging connection device 1 and in particular replaced by the cover plate 13 and the corresponding mechanical lock 8. This blind cover 14 - FIG. 5 - is therefore obsolete if the charging connection device 1 is subsequently equipped with a mechanical locking lock 8, which is why this blind cover 14 in FIG. 5 has been crossed out with dashed lines.

The mechanical lock 8 is preferably installed in such a way in the housing 2 or subsequently installed such that its keyway 15 protrudes predominantly into the interior of the housing 2. As a result, locking elements projecting distinctly from the surface of the housing 2 are avoided, and consequently the mechanical robustness of the charging device 1 is improved and at the same time the risk of injuries due to elements projecting like a pole or sharp edges is avoided. Consequently, the locking lock 8 is at least predominantly inserted in a receiving compartment 17 formed in the housing surface 16 or, in the case of retrofittability, accordingly inserted into the receiving recess 17.

This receiving recess 17 for the mechanical lock 8 is formed as a liquid-tight or splash-proof boundary 18 between the periphery or outside of the housing 2 and the interior 19 of the housing 2. The receiving recess 17 in the housing 2 or in the housing surface 16 may be executed blind hole or cup-like. It is useful if the receiving recess 17 is formed by breakthrough-trained boundary walls 20, in particular made of plastic. So that can create a liquid-tight barrier between the outside and the interior 19 of the housing 2. However, a sufficiently splash-proof design can also be achieved if in the receiving recess 17 defining boundary walls 20 isolated slots or openings 21 are formed, as was indicated schematically and by way of example in Fig. 6. Especially when such slots or openings 21 are made at the top of the blind hole or cup-like demarcation 18, a sufficiently splash-proof design of the housing 2 can be achieved. It is expedient, however, to completely dispense with such breakthroughs 21 and thereby create a particularly liquid-tight receiving recess 17, which prevents the passage of liquids or at least of solids from the receiving space of the receiving recess 17 into the interior 19 of the housing 2.

According to the illustrated embodiment, the receiving recess 17 for the mechanical lock 8 may be formed by a cup-shaped receiving body 22. Instead of a structurally self-contained receiving body 22, the receiving recess 17 can also be defined by an integral part of the housing 2 or by an integral part of a shell part of a multi-part housing 2. Especially when the receiving body 22 is constructed structurally independent, as illustrated in FIGS. 3 to 6, it is expedient if the cup-shaped receiving body 22 has a retaining collar 24 which at least partially encloses its receiving opening 23. In particular, it is expedient if the receiving opening 23 of the receiving body 22 is at least partially surrounded by a flange-like retaining collar 24. Via this retaining collar 24, a simple and at the same time as close as possible connection of the receiving body 22 on the inside 25 of a housing wall of the housing 2 can take place. According to the example, the receiving body 22 is attached by an adhesive connection, in particular by a double-sided adhesive adhesive pad 26, on the inside 25 of the housing 2, in particular glued liquid-tight. According to the example, the inside 25 of a housing wall of the housing 2 is defined by the aforementioned cover plate 13. Instead of the Abdeckplat- th 13 but also a front housing shell of the housing 2 may be provided for holding the receiving body 22, in which case the receiving body 22 via its retaining collar 24 and an adhesive pad 26 on the inside 25 of the housing 2 is sealingly supported or supported. One of the receiving opening 23 opposite bottom portion of the example according cup-shaped receiving body 22 is preferably carried out without breakage or liquid-tight. According to the example, the contactless or contactless detection device 27 is assigned to this bottom section next.

According to an alternative or combinatorial embodiment, the element 14 indicated in FIG. 5, in particular the previously mentioned blind cover 14, can serve as an assembly aid or as a guide aid which permits the most exact adhesion of the receiving body 22 for the lock 8 on the inside 25 of the housing 2 allows.

The receiving recess 17, which is either integrally formed in the housing 2, or alternatively the receiving recess 17 defined by a structurally independent receiving body 22, serves, inter alia, for holding or positioning the locking lock 8 inserted therein. It is essential that outside the receiving recess 17, ie in the interior 19 or in the cavity of the housing 2, a non-contact or a contactless influenceable or activatable, electronic or electromechanical detection device 27 is formed, with which at least one position, in particular at least one actuation position of the in the receiving recess 17th recorded or recordable lock 8 can be detected. The detection device 27 is designed such that the respective position or actuation position of the mechanical locking lock 8 without a direct, mechanical coupling to the lock 8 contactlessly through the boundary wall 20 of the receiving recess 17 can be detected. Consequently, there is no direct mechanical coupling or no galvanic connection between the detection device 17 and the typically metallic lock 8. The wall of the receiving recess 17, in particular at least one boundary wall 20 of the receiving recess 17 is located between the lock 8 and the non-contact detecting detection device 27th

The receiving recess 17 or the corresponding receiving body 22 is preferably formed from plastic, in particular produced by a plastic injection molding process. The receiving recess 17 made of plastic thus forms a comprehensive contact protection or an insulation delimitation against voltage-carrying, electrical components in the interior 19 of the housing 2.

In this case, it is expedient for the electronic or electromechanical detection device 27 to comprise at least one contact or contactless sensor 28, 29, in particular at least one reed contact, Hall sensor, inductive sensor, capacitive sensor or optoelectronically operating sensor. With this at least one sensor 28, 29 of the detection device 27, at least one key-dependent actuation position of the mechanical lock 8 can be sensed.

According to an expedient embodiment, a first reed contact 30 and a locally distant, further reed contact 31 are provided, whereby different positions, in particular a rest or blocking position 37 and an actuation or release position 36 of the mechanical lock 8 are reliably detectable , In this case, these reed contacts 30, 31 can be influenced by a first permanent magnet 32 and by a second permanent magnet 33 in terms of control or circuitry. It is useful if the first permanent magnet 32 is assigned to the first reed contact 30 functionally and the other permanent magnet 33 is assigned to the other reed contact 31 functionally. It is practical in this context, if a transmitter element 34 is provided, the parking positions of the detection device 27 are reliably detected. According to the advantageous embodiment, the first permanent magnet 32 and also the further permanent magnet 33 are supported on this transmitter element 34, wherein the permanent magnets 32, 33 are positioned or held at a distance from each other on the transmitter element 24.

It is practicable if the transmitter element 34 is rotatably mounted within the receiving recess 17 or is rotatable within the receiving recess 17. According to the illustrated embodiment, the transmitter element 34 is disc-shaped and by means of an actuating lug 35, in particular by means of the so-called locking lug of the

Locking lock 8, in one of the detection device 27 detectable unlocking or release position 36 - Fig. 5 - pivotable. In particular, the transmitter element 34, starting from a rest or blocking position 37 - Fig. 5 -, by pressing the lock lock. 8 be transferred by means of a suitable key at least temporarily in the unlocking or release position 36.

According to an alternative embodiment, provision can also be made to form at least one boundary wall 20 of the receiving recess 17 made of transparent or translucent plastic and to use an opto-electronic detection device 27 in the manner of a transmitted light or reflection light barrier.

According to an expedient embodiment, the detection device 27 can be designed such that it is designed both for detecting the rest or blocking position 37 of the locking lock 8 and for detecting the release position 36 that can be activated by a key operation. This increases the reliability or interference and tamper resistance of the detection device 27. From a purely functional point of view, the mere detection of the release position 36 would be sufficient - all other positions of the lock 8 could basically be interpreted as non-release or as a lock. In contrast, by a sensory detection of both the rest or blocking position 37, as well as the release position 36, the security against unauthorized use due to manipulative interference and the reliability due to a single sensor or evaluation error, for example by interference or by Application of an external magnetic field, significantly increased. This is especially true if the detection device 27 or the control device 9 connected to the detection device 27 only evaluates a direct and relatively prompt transition from the detected rest or blocking position 37 into the detected release position 36 as a deliberate, user-initiated release. The detection device 27 may be conductively connected to the control device 9 or form a subcomponent of the control device 9. The control device 9 of the charging connection device 1 for the software-controlled activation of rights of use of the charging connection device 1 is preferably designed as a function of detection states of the detection device 27. The lock 8 is executed according to an expedient embodiment in key switch function. In this case, a release position touch signal provided by the detection device 27 is processed by the control device 9 as an authorization identifier for a use release of the charging connection device 1. It is practicable if the encoder element 34 or the closing or actuating supply lug 35 of the locking lock 8 against the force of an elastically resilient and resilient resetting spring element 38 in the release position 36 can be transferred. This makes it possible to provide a standard locking lock 8, in particular a cylinder block 10, with a key switching function. In particular, the encoder element 34 or the movement-coupled actuating nose 35 tends to be urged in the direction of the rest or blocking position 37-FIG. 5.

According to an expedient embodiment, it is provided that the non-contact sensing elements or sensors 28, 29 of the detection device 27, in particular reed contacts 30, 31 or Hall sensors, are mounted on a common support element 39, in particular on a printed circuit board. It is useful if this support element 39 is attached to the sensors 28, 29 on the side facing away from the inside of the receiving recess 17 outside of the receiving recess 17, as exemplified in Figs. 3, 4.

As already explained above, according to an advantageous embodiment variant, it is possible to simply retrofit the mechanical locking lock 8 with an already delivered or installed charging connection device 1. For this purpose, the receiving recess 17 for the lock 8 in the housing 2 or in the housing surface 16 is already formed. Optionally, it is provided that an opening 48 in the housing surface 16, which opening 48 is provided for inserting a shape-compatible locking lock 8 into the receiving recess 17, can be made accessible after removing a blind cover 14 from the housing 2 - FIG. The electronic or electro-mechanical detection device 27 is already installed as standard in the housing 2, in particular already assigned to a boundary wall 20 of the receiving recess 17. At least the detection device 27 is pre-installed in such a way that it is designed to detect at least one actuation position of a standardized, form-compatible locking lock 8. According to the example, the detection device 27 is associated with the boundary wall 20 forming the bottom of the receiving recess 17.

It is expedient in the case of an embodiment for retrofittability, if a standardized lock 8, in particular a lock cylinder or a cylinder lock 10, without the aid of tools in the charging device 1 can be implemented, in particular special in the receiving recess 17 of the housing 2 can be used. In particular, it is expedient if the mechanical locking lock 8 can be used as use control means for the charging connection device 1 immediately after insertion into the receiving recess, after the respective actuating positions of the locking lock 8, in particular of its actuating nose 35, of the detection device 27 directly or indirectly via an intermediate donor element 34 - Fig. 5 - are detectable. According to an advantageous embodiment, it is provided that the receiving recess 17 without an opening of the housing 2 of the charging connection device 1 is accessible. This can be done, for example, by removing an optionally attached blind cover 14-FIG. 5-as already explained above. Then the lock 8 is without access to the interior of the housing 2, in particular without a possibility of contact of the electrical components in the housing 2, inserted into the receiving recess 17. It is important that the insertion of the lock 8 is made possible without opening the housing 2 and thus is safe for any end user without special training and without special security precautions. In particular, thereby a risk of electric shock is reliably excluded or can thereby shut down the mains voltage or energy supply for a safe installation of the lock 8 are unnecessary. According to an expedient measure can be provided that in the receiving recess 17 at least one locking device 40 is formed, with which the lock 8 is noticeably locked after insertion or insertion into the receiving recess 17, so that the lock 8 is secured against falling out automatically. This locking device 40 may comprise at least one resiliently mounted latching projection 41, which cooperates with a standard fixing hole 42 or with a demminent recess in the mechanical lock 8. In particular, the locking projection 41 engages in the presence of a planned inserted or positioned locking lock 8 in the fixing hole 42 and thus signals the assumption of the plan or proper relative position of the lock 8 within the receiving recess 17th

The locking device 40 may in addition to the locking projection 41 at least one Führungsbzw. Have holding element 43 for the mechanical lock 8. This guide or holding element 43 is inserted or used in the receiving recess 17. To one Unauthorized removal of the lock 8 to prevent the receiving recess 17, it is expedient if the actuating lug 35 engages behind an abutment member 44 or a stop surface 45 in the receiving recess 17 as soon as the lock 8 is inserted into the receiving recess 17 and the key or pivoting positions are occupied by the actuating lug 35 of the lock 8, which pivot between the rest or locking position 37 of the lock 8 and the release position 36 of the

Lock 8 lie. The abutment element 44 or the abutment surface 45 can be part of the detent device 40 or at least one of these elements can also be an integral part of the receptacle recess 17 or of the receptacle body 22.

According to an expedient measure, it is provided that the locking lock 8 can be inserted into the receiving recess 17 or removed from the receiving recess 17 only when an installation position 46 of the lock 8 - as indicated by dashed lines in FIG. 4 - is inserted. When taking this installation position 46, the operating lug 35 of the lock 8 is positioned within the outer surfaces 47 of the lock housing or cylinder lock 10 or positioned transversely to the longitudinal axis of the lock 8 within the profile cross-section. Only when taking this installation position 46 of the lock 8, which installation position 46 can only be taken with a matching key, the lock 8 can be inserted into the receiving recess 17 and removed from the receiving recess 17. For insertion of the lock 8 in the receiving recess 17 in the cover plate 13 and in another housing surface 16 of the housing 2 of the aforementioned opening 48 is formed, the outline contour substantially corresponds to the cross-sectional contour of the mechanical lock 8 when taking the installation position 46 - FIG. 4. In particular, the abutment element 44 or the guiding or holding element 43 is designed in such a way that the locking lock 8 is removed from the guiding or holding element 43 exclusively when taking the installation position 46 or into the guide or holding element Holding element 43 can be inserted within the receiving recess 17. Thus, on the one hand, a built-in safeguard, but also a so-called core pull protection is provided for the locking lock 8, which is preferably insertable without tools by an end user. In particular, a standardized half-cylinder lock can thus be used without tools, without an opening of the housing 2 and without disassembly work on the charging connection device 1. As best seen in FIG. 6, a bottom portion 49 of the receiving recess 17 may be formed as a drainage channel 50 extending from the closed end toward the receiving opening 23 of the receiving recess 17 for condensate, spray water or driving rain. In particular, it is thereby made possible that accumulated liquids, possibly due to driving rain or the like, can not accumulate in the receiving recess 17 within the receiving recess 17, but can flow out of it at any time. This also increases the robustness or functional reliability of the charging connection device 1. This drainage channel 50 can open into a drainage bore 51 in the cover plate 13 or in a demarcated boundary wall or housing surface 16 of the housing 2.

The embodiments show possible embodiments of the charging connection device 1 and the lock 8, wherein it should be noted that the invention is not limited to the specifically illustrated embodiments thereof, but also various combinations of the individual embodiments are mutually possible and this variation possibility due to Teaching for technical action by objective invention in the skill of those working in this technical field is the expert. So are all conceivable embodiments, which are possible by combinations of individual details of the illustrated and described embodiment variant, includes the scope of protection.

For the sake of order, it should finally be pointed out that, for a better understanding of the structure of the charging connection device 1, these or their components have been shown partially unevenly and / or enlarged and / or reduced in size.

The task underlying the independent inventive solutions can be taken from the description.

Above all, the individual embodiments shown in FIGS. 1 to 6 can form the subject of independent solutions according to the invention. The relevant objects and solutions according to the invention can be found in the detailed descriptions of these figures. REFERENCE NUMBERS

Charging connection device 36 release position

Housing 37 resting or blocking position

Input interface 38 spring element

Supply line 39 supporting element

Charging interface 40 locking device

Charging interface 41 Locking projection

Socket 42 Fixing hole

Locking lock 43 guide s or holding element

Seating device 44 abutment element

Zy linder closed the 45 stop area

End face 46 installation position

Boundary surface 47 outer surface

Cover plate 48 breakthrough

Blind cover 49 bottom section

Key channel 50 drainage channel

Housing surface 51 Drainage hole

receiving recess

Demarcation V Electric vehicle

Interior A energy storage

Boundary wall E charging electronics

M S tromv er care snetz

Breakthrough C charging cable

receiving body

Receiving opening PI plug

Retaining collar P2 plug

inside

adhesive pad

detection device

sensor

Reed contact

permanent magnet

transmitter element

actuating nose

Claims

Patent claims

1. Charging connection device (1) for electric vehicles (V), with at least one

An input interface (3) for feeding electrical energy from a stationary power supply network (M) into the charging connection device (1), with at least one charging interface (5, 6) for the controlled delivery of electrical energy to an electric vehicle (V), with a plurality of electrotechnical Component comprising an electronic control device (9) for switching, measuring or monitoring the recorded and / or emitted electrical energy, and with a housing enclosing the electrical components (2), wherein the charging connection device (1) is a mechanical

Lock lock (8) for regulating rights of use for the charging connection device (1) or for subsequent assignment of a mechanical lock as required (8) is provided for the regulation of rights of use, characterized in that the lock (8) at least predominantly in one in the Housing surface (16) formed receiving recess (17) is inserted or can be used, which receiving recess (17) as a liquid-tight or splash-proof boundary (18) between the outside and the interior (19) of the housing (2) is formed, and that outside the receiving recess (17) in the housing (2) a non-contact or activatable, electronic or electromechanical detection device (27) is formed, with which at least one position of the receiving recess (17) received or receivable lock lock (8) without a direct mechanical Coupling at the lock ss (8) contactlessly by a boundary wall (20) of the receiving recess (17) can be detected.

2. charging connection device according to claim 1, characterized in that the

Detection device (27) at least one non-contact sensor (28, 29), in particular at least one reed contact (30, 31), Hall sensor, inductive sensor, capacitive sensor or optoelectronically operating sensor comprises.

3. charging connection device according to claim 1 or 2, characterized in that the detection device (27) for detecting the rest or locking position (37) of the lock (8) and also for detecting a activatable by a key actuation release position (36) of the lock (8 ) is trained.

4. Charging connection device according to one of the preceding claims, characterized in that the receiving recess (17) is executed blind hole or cup-like and is formed by unbroken trained boundary walls (20) made of plastic.

5. charging connection device according to one of the preceding claims, characterized in that the receiving recess (17) by a cup-shaped receiving body (22) having a receiving opening (23) at least partially bounding retaining collar (24) is formed, via which retaining collar (24) of the receiving body (22) on the inside (25) of a housing wall of the housing (2) is sealingly supported or supported.

6. charging connection device according to one of the preceding claims, characterized in that the locking lock (8) by a standardized constructed cylinder lock (10), in particular by a half-cylinder lock is formed.

7. Loading connection device according to one of the preceding claims, characterized in that in the receiving recess (17) a locking device (40) is formed, with which the lock (8) after insertion into the receiving recess (17) noticeably engages and is secured against falling out ,

8. Charging connection device according to one of the preceding claims, characterized in that the locking lock (8) comprises a by actuation of a suitable key pivotable actuating nose (35), which actuating nose (35) an abutment member (44) or a stop surface (45) in the receiving recess (17) engages as soon as the lock (8) is inserted into the receiving recess (17) and the key or the operating lug (35) of the lock (8) pivot positions are taken, which between the rest or locking position (37) of the lock (8) and the release position (36) of the lock (8) lie.

9. Loading connection device according to one of the preceding claims, characterized in that in the receiving recess (17) a rotatably mounted encoder element (34) is arranged, which by means of an actuating nose (35) of the lock lock (8) in one of the detection device (27) detectable Release position (36) is pivotable.

10. charging connection device according to claim 9, characterized in that on the encoder element (34) at least a first permanent magnet (32) and at least one to the first permanent magnet (32) distanced, further permanent magnet (33) is supported.

11. Charging connection device according to claim 9 or 10, characterized in that the transmitter element (34) against the force of an elastically resilient and resiliently resetting spring element (38) in the release position (36) can be transferred.

12. Loading connection device according to one of the preceding claims, characterized in that a bottom portion (49) of the receiving recess (17) as a from the closed end towards the receiving opening (23) of the receiving recess (17) extending drainage channel (50) for condensate, spray or Driving rain is formed.

13. Charging connection device according to one of the preceding claims, characterized in that non-contact sensing elements of the Detektorungsvomchtung (27), in particular reed contacts (30, 31) or Hall sensors, on a common support member (39), in particular on a printed circuit board, supported are and this support element (39) on the side facing away from the inside of the receiving recess (17) outside of the receiving recess (17) is attached.

14. Charging connection device according to one of the preceding claims, characterized in that the locking lock (8) exclusively upon receipt of an installation position (46), in which an actuating nose (35) of the locking lock (8) within the outer surfaces (47) of the lock ( 8) or positioned within the profile cross-section formed transversely to the longitudinal axis of the locking lock (8), can be inserted into the receiving recess (17) or can also be removed from the exceptional recess (17).

15. charging connection device according to claim 5, characterized in that the

Receiving body (22) by an adhesive connection, in particular by a double-sided adhesive adhesive pad (26) on the inside (25) of the housing (2) is fixed liquid-tight.

16. Charging connection device according to one of the preceding claims, characterized in that the receiving recess (17) is formed from plastic and a comprehensive contact contactor and an isolation delimitation against live, electrical components in the interior (19) of the housing (2) is formed.

17. Charging connection device according to one of the preceding claims, characterized in that the detection device (27) with the control device (9) is line-connected or a sub-component of the control device (9) is formed, and that the control device (9) for software-controlled activation of rights of use the charging connection device (1) is formed as a function of detection states of the detection device (27).

18. Charging terminal device according to one of the preceding claims, characterized in that the locking lock (8) is executed in a key switch function, and that provided by the detection device (27) release position key signal from the control device (9) as authorization flag for a use release of the Charging connection device (1) is processed.

19. Charging connection device according to one of the preceding claims, characterized in that the receiving recess (17) for the lock (8) and the detection device (27) for detecting at least one actuation position of the lock (8) are formed such that a standardized lock ( 8), in particular a cylinder lock (10), can be implemented without the aid of tools in the charging connection device (1), in particular in the receiving recess (17) of the housing (2) can be used, and then as a use control means for the charging connection device ( 1) is usable.

20. charging connection device according to one of the preceding claims, characterized in that the receiving recess (17) without opening of the housing (2) of the charging connection device (1) is accessible, so that the lock (8) without access to the interior (19) of the Housing (2) in the receiving recess (17) can be inserted.