DE102013103515A1 - Charging connection device for electric vehicles - Google Patents

Abstract

The invention relates to a charging connection device (1) for electric vehicles (V), with at least one input interface (3) for feeding electrical energy from a fixed power supply network (M) into the charging connection device (1), with at least one charging interface (5) for controlled delivery of electrical energy to an electric vehicle (V), with a plurality of electrotechnical components comprising an electronic control device (9) for switching, measuring or monitoring the absorbed and / or delivered electrical energy, and with a housing (2) enclosing the electrotechnical components , The charging connection device (1) has a mechanical locking lock (8) for regulating usage rights for the charging connection device (1), or it is provided for the subsequent assignment of a mechanical locking lock (8) for regulating usage rights as required. The locking lock (8) is at least predominantly used in a receiving recess formed in the housing surface (16) or can be inserted therein. The receiving recess is designed as a liquid-tight or splash-proof boundary between the outside and the interior (19) of the housing (2).

Description

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 and availability of an electric vehicle, therefore, it is sought after to keep the charging time as short as possible, for which, however, a 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. Even if a power connection with in principle sufficiently high electrical connection power is available, it may be due to the total load in parts of the power grid to time or situation-dependent restrictions in the actually available power come.

For the charging of electric vehicles - unless it is small vehicles in the manner of an electric bicycle or comparable - therefore special charging connection devices are required or at least useful, which can provide or transfer not only a correspondingly high electrical connection power in contrast to a conventional socket but also have additional means of communication, with which the charging electronics of a connected vehicle can determine the actual respectively obtainable charging power or can react to the current network situation, without overloading the network or the supply line and thus causing a shutdown. Furthermore, in such charging terminal devices, a number of safety devices are implemented, for example, a locking device that prevents unauthorized staking or staking 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 authorizing 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 possibly this data via data network connections exchange 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 mains 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 documents US 4,532,418 A . DE 42 13 414 C2 . FR 2 766 950 A1 . JP 11-122714 A . US 6,362,594 B2 . WO 2007/141543 A2 . WO 2010/011545 A1 . WO 2010/133959 A2 and AT 507 605 A1 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 locked or connected theft-proof.

After generic charging connection devices for electric vehicles are often located 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 with respect 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 sometimes desirable that an authorized group of people can gain access to the functionalities of the charging connection device as simply 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 these access and 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 is familiar to an unlimited number of persons. A significant advantage of a lock as compared to electronic authorization systems, such as e.g. Electronic code locks or transponder systems, is also the fact that in particular standardized locking locks, if necessary, can be implemented easily by the end user or user 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 used as needed or inserted into the receiving recess lock by the inventive measures can cause any hazard or any electrical insulation problems. In particular, the typically metallic locking lock is reliably and completely delimited from live components or lines in the housing of the charging connection device. Accordingly, a splash-proof charging connection device can be provided, which is unlockable by means of a mechanical lock and a matching mechanical key or secured against unauthorized use. In addition, there is high protection against insulation faults or electric shocks or moisture penetration into the housing interior starting from the mechanical lock 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 electromechanical 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 interference safety, therefore, a particularly practicable and intuitive operation or verification of the authorization can be achieved.

Another 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 locking lock in the receiving recess, a prominent projecting position of the locking lock relative to the housing surface is prevented or marginal. As a result, the robustness of the charging connection device, especially when its housing is designed as a plastic housing, significantly increased. 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, as this avoids a direct mechanical coupling of the detection device to the mechanical lock and the actuation information can be detected contactlessly through the unbroken closed wall of the receiving recess through which on the one hand stay tightness problems of the housing of the charging device and on the other hand a galvanic isolation is guaranteed. In addition, the accuracy of such position detection sensors or condition detectors is sufficient to detect the respective position, in particular the lock and / or unlock state of the mechanical lock sufficiently accurate and reliable. In any case, no galvanic or electrically conductive connection between the typically metallic lock and arranged in the interior of the housing of the charging device electrical components must be present after the electronic or electro-mechanical detection device operates without contact or there is no electrically conductive connection to the mechanical lock or 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 recording for the mechanical lock can be created so that markedly projecting portions are avoided on the outer surfaces of the housing of the charging connector. 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 receiving 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 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, structurally relatively simple injection molds are made possible by the separate design of a receiving body for defining the receiving cavity, and relatively process-stable manufacturing processes can be achieved.

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 as unique as possible lock lock with standard design into the receiving recess and 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 into an assembly or special position in which the actuating lug is located within the outer boundary of the profile cylinder, a removal of the entire profile cylinder from the receiving recess can be made 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 transmitter element is arranged, which can increase the distance between the metallic parts of the mechanical lock and the detection device or form an additional isolation 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, can be equalized by standards despite the standardization or standardization depending on the manufacturer tolerances or structural characteristics of the lock, in particular the actuating lug, whereby a reliable detection of the blocking and / or release position can be ensured regardless of such constructional 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 can 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 magnets is at least partially compensated. This improves the reliability of the detection of the actuating or actuating positions of the lock.

But also advantageous are the measures according to claim 11, as a standard, mechanical lock to a key switch with defined required operating force or spring-loaded return action can be converted. In addition, with simple spring means, such as a leg spring, it can be achieved that the mechanical lock is pivoted back into the blocking or rest position, starting from the release or unlocking position to be activated actively, 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 reaching into the receiving recess or accumulated liquids can cause no malfunction or no impairment of the function of the lock. In addition, a spritzwassertaugliche or outdoor-suitable design of the charging connection device is achieved, although a mechanical lock with a fluid-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 the sensors. Nevertheless, the mechanical lock and the mechanical remain Locking associated detection device in a reliable manner isolation technology or galvanically separated from each other.

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 installation position inherent in a profile cylinder is thereby utilized in order to be able to assemble this profile cylinder quickly and easily or, if necessary, to remove it again. In the locked or initial position and in the release position of the lock, but usually also in the intermediate operating positions of the lock, the operating lug of the lock protrudes from the outer surfaces of the profile cylinder and is characterized given a stable, mechanical pull protection, the unintentional pulling out the locking lock from the receiving recess 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. The adhesive connection between this independent receiving body and the corresponding housing component of the charging connection device also allows a rational increase in the variety of variants or a simple optional retrofittability of the key switch. 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 is that the metallic lock can be reliably protected from live components in the interior of the housing of the charging connection device. In addition to this contact protection 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 touch and foreign body protection as well as a high degree of protection against water and moisture 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, the blocking lock or the detection device can thereby be reduced to signal engineering or control unit functions, and the processing of the respective signals or the further execution of the control device and any actuators, optionally actuated therefrom, as e.g. 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 the removal of the key until the charging process 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. By default, or as a precaution assigned detection device can be assigned a key switch functionality 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.

However, the measures according to claim 20 are also advantageous. In particular, this makes it possible to achieve a kind of "plug-and-play" function for simple self-installation without the requirement of electrical knowledge and increased dexterity requirements. In addition, there is no risk to the person implementing the mechanical lock, since no intervention in the housing interior or in the wiring of the charging device is required. A matching in terms of its design, mechanical lock for regulating entitlements so use only in the receiving recess and secure against falling out or against removal. The protection against falling out or removal can be carried out according to an advantageous embodiment by simply transferring the lock into the rest or blocking position, as previously explained.

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 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 the charging terminal device according to 1 in a perspective view of the back of the case;

3 provided for an electromechanical locking and unlocking sub-components of the charging connection device according to 1 ;

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

5 the lock and unlock components according to 3 in an exploded view as well as with an optional assembly aid for a structurally independent recording certificate or with an optional blanking cover if the lock function is not used;

6 the locking and unlocking components of the charging device in an 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 names, wherein the disclosures contained in the entire description can be mutatis mutandis to the same 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.

In the 1 and 2 is an embodiment of a charging connector 1 for electric vehicles V illustrates which charging connector 1 equipped according to the invention or which can carry out operational control and control processes. This charging connection device 1 is provided for charging or regenerating the energy storage A of an electrically operable vehicle by the charging connection device 1 is electrically connected to the energy storage A and the charging electronics E of the electric vehicle V. The charging connection device 1 is to be understood as a source of 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 especially 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, the charging connection device 1 Assign a charging electronics or in the charging connection device 1 to integrate a charging electronics, which converts the input side, fed electrical energy into a suitable for charging the energy storage A in the electric vehicle V or adapted form and provides.

The charging connection device 1 comprises a plurality of electrotechnical components which are of a multi-part housing 2 are enclosed. 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 connection device, the electrotechnical components can 1 at least one component selected from the group of components comprising contactor, residual current operated circuit breaker or residual current device Monitoring device, relay, terminal, electronic circuit and the like include. 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 used for controlling and / or measuring and / or monitoring the energy states at the charging connection device 1 or provided in the electric vehicle V connectable therewith.

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 on. In particular, the charging terminal device becomes 1 via this input interface 3 the electrical energy required for transmission to a connected electric vehicle V supplied. The input interface 3 is designed as a line interface, which is preferably provided for connecting cable cores. To the typically required, electrical power to or in the charging connection device 1 To be able to transfer cable cross sections are usually provided between 4 to 16 mm ² . 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.

In this case, the electrical energy is drawn from a single-phase or preferably multi-phase power supply network M with a standardized or domestic mains voltage, that is, for example, in the European region in the amount of 230 V AC or 400 V AC. By way of example, the energy supply or current supply takes place via at least one opening in the housing cover surface of the charging connection device 1 , Of course, it is also possible, the side walls or the rear wall and / or the bottom plate of the housing 3 with at least one cable bushing for the electrical supply line 4 to provide.

The charging connection device 1 also includes 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 plug-in socket 7 , In particular, the charging interface comprises 5 the charging connection device 1 at least one socket 7 to which a charging cable C with a corresponding connector P1, if necessary, connectable and on request from the charging connection device 1 is again detachable or uncoupled. By means of the charging cable C and the connector P1 connected to it, that of the charging connection device 1 provided or respectively available electrical energy to be transmitted to an associated electric vehicle V. At the second end of the charging cable C, a plug P2 may be provided, which is coupled with a corresponding socket on the electric vehicle V, if necessary, to an electrical line connection between the charging connection device 1 and to be able to build the charging electronics E and the energy storage 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, a fixed cable outlet or a fixed to the charging device 1 connected charging cable (not shown) may be formed, which to the charging interface 6 - 2 - runs.

In 1 is an embodiment of a generic charging connection device 1 with a mechanical lock 8th exemplified and schematically illustrated. The mechanical lock 8th is at the charging connection device 1 designed to regulate rights of use for the charging connector 1 to enable. In particular, the mechanical lock is 8th intended to limit a power or energy reference to an authorized group of persons or to a single authorized person. Specifically, the charging connector is 1 via the lock 8th and a corresponding mechanical key - not shown - in their functionality unlockable or lockable. Thus, it allows only the owner of a lock to lock 8th matching key from the charging connector 1 refer electrical energy and thus can charge the energy storage A of an electric vehicle V. Via the mechanical lock 8th or by means of a matching key so are unrestricted rights of use or limited rights of use or rights of adjustment with respect to the functionality or usability of the charging device 1 adjustable. In particular, it can be provided that after actuation or switching of the lock 8th by means of a suitable mechanical key at the charging interface 5 . 6 electrical energy for charging the energy storage A of an electric vehicle V is provided or can be obtained from the electric vehicle V.

Among other things, this regulation of rights of use is indicated by the dashed lines in the housing 2 the charging connection device 1 arranged control device 9 Controlled managed or controlled. Unless the controller 9 by means of a predefined change or actuation of the lock 8th recognizes a presence of rights of use, the possibility of an energy purchase is unlocked. In contrast, by the control device 9 in the case of missing rights of use, such an energy procurement is denied or prevented. This is the control device 9 connected to at least one power switch, such as a contactor, a relay or a semiconductor power switch. With such from the control device 9 Controlled circuit breakers can be the energy reference at the charging interface 5 respectively. 6 Among other things, depending on the presence or non-existence of rights of use specifically released or prevented.

The mechanical lock 8th in this case preferably represents a control-technical input or command element with respect to the control device 9 In particular, the mechanical lock is 8th provided as a signaling or input element for a release control command. The mechanical lock 8th is thus with the control device 9 signal technology is coupled. A previously mentioned circuit breaker thereby provides a to the control device 9 connected actuator, which in response to command or signal state of the mechanical lock 8th the electrical energy at the charging interface 5 . 6 unlocked or for a reference to the charging interface 5 . 6 releases. An energy reference from the charging connector 1 or a connection of the electrical voltage at the charging interface 5 . 6 Typically, this takes place only when a proper connection to an electric vehicle V or to its charging electronics E has been established and detected by control technology.

Preferably, the mechanical lock is lock 8th through a standardized cylinder lock 10 , in particular formed by a half cylinder lock. The lock 8th is preferably in the housing 2 the charging connection device 1 embedded or subsequently assignable, in particular retrofittable. The installation position or installation position of the mechanical lock 8th is such that its front end face 11 flush or nearly flush with a boundary surface 12 of the housing 2 concludes. For example, the bounding surface is 12 through the front wall surface of the housing 2 Are defined.

How best of the 3 to 6 It can be seen, this boundary surface 12 through a cover plate 13 be formed, which is a retrofittable or optional subcomponent of the housing 2 can represent. Especially if the lock 8th as a retrofittable option for an already delivered or installed charging connection device 1 is provided, this cover plate 13 as a replacement or replacement element for a blind cover 14 - 5 - be provided. In particular, in the case of retrofitting, the blind cover 14 from the case 2 the charging connection device 1 removed and in particular through the cover plate 13 and the corresponding mechanical lock 8th replaced. This blind cover 14 - 5 So is obsolete when the charging connector 1 with a mechanical lock 8th is retrofitted, which is why this blind cover 14 in 5 crossed out with dashed lines.

The mechanical lock 8th is preferably in the housing 2 installed or retrofitted in such a way that its key channel 15 mostly in the interior of the case 2 protrudes. This will be distinctive of the surface of the case 2 protruding lock elements avoided and thus becomes the mechanical robustness of the charging connector 1 improves and at the same time avoids the risk of injury due to pole-like or sharp-edged protruding elements. As a result, the lock is 8th at least predominantly in one in the housing surface 16 trained recording well 17 used or in case of retrofitting accordingly in the receiving recess 17 used.

This recording deepening 17 for the mechanical lock 8th is here as a liquid-tight or splash-proof demarcation 18 between the periphery or outside of the housing 2 and the interior 19 of the housing 2 educated. The recording well 17 in the case 2 or in its housing surface 16 can be executed blind hole or cup-like. It is useful if the receiving recess 17 through breakthrough trained boundary walls 20 , in particular of plastic, is formed. This allows a liquid-tight barrier between the outside and the interior 19 of the housing 2 be created. A sufficiently splash-proof design can also be achieved if in the receiving recess 17 defining boundary walls 20 isolated slits or breakthroughs 21 are trained, as in 6 was indicated schematically and by way of example. Especially if such slots or breakthroughs 21 at the top of the blind hole or cup-like demarcation 18 are executed, a sufficiently splash-proof design of the housing 2 be achieved. It is useful, however, on such breakthroughs 21 completely dispensed with and thus a particularly liquid-tight receiving recess 17 to provide, which the passage of liquids or at least of solids starting from the receiving space of the receiving recess 17 in the interior 19 of the housing 2 in derogation.

According to the illustrated embodiment, the receiving recess 17 for the mechanical lock 8th through a cup-shaped receiving body 22 be formed. This receiving body 22 defined with its boundary walls 20 the recording well 17 , Instead of a structurally self-contained receiving body 22 can the recording well 17 also by an integral part of the housing 2 or by an integral part of a shell part of a multi-part housing 2 be defined. Especially if the receiving body 22 structurally independent is executed, as this in the 3 to 6 is illustrated, it is advantageous if the cup-shaped receiving body 22 a receiving opening thereof 23 at least partially surrounding retaining collar 24 having. In particular, it is expedient if the receiving opening 23 of the recording body 22 at least in sections of a flange-like retaining collar 24 is skirted. Via this collar 24 can be a simple and at the same time as dense connection of the receiving body 22 on the inside 25 a housing wall of the housing 2 respectively. By way of example, the receiving body 22 by an adhesive bond, in particular by a double-sided adhesive adhesive pad 26 , on the inside 25 of the housing 2 attached, in particular glued liquid-tight. For example, the inside is 25 a housing wall of the housing 2 through the aforementioned cover plate 13 Are defined. Instead of the cover plate 13 but can also be a front housing shell of the housing 2 for holding the receiving body 22 be provided, in which case the receiving body 22 via his collar 24 and an adhesive pad 26 on the inside 25 of the housing 2 is supported or held in a sealed manner.

One of the receiving opening 23 opposite bottom portion of the example according to cup-shaped receiving body 22 is preferably unbreakable or liquid-tight. By way of example, the detection or contactless detection device is 27 assigned to this floor section next.

According to an alternative or combinatorial embodiment, the in 5 indicated element 14 , in particular the aforementioned blanking cover 14 , serve as an assembly aid or as a guide aid, which is the most accurate sticking of the receiving body 22 for the lock 8th on the inside 25 of the housing 2 allows.

The in the case 2 either integrally formed receiving recess 17 , or alternatively by a structurally independent receiving body 22 defined recording recess 17 Among other things, it is used for holding or positioning the locking mechanism inserted therein or for insertion therein 8th , It is essential that outside of the recording deepening 17 in the interior 19 or in the cavity of the housing 2 a non-contact or non-contact influenceable or activatable, electronic or electro-mechanical detection device 27 is formed, with which at least one position, in particular at least one operating position of the in the receiving recess 17 recorded or recordable lock 8th is detectable. The detection device 27 is designed such that the respective position or operating position of the mechanical lock lock 8th without a direct, mechanical coupling to the lock 8th non-contact through the boundary wall 20 the recording well 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 8th , The wall of the receiving well 17 , in particular at least one boundary wall 20 the recording well 17 , located between the lock 8th and the non-contact detecting detection device 27 ,

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

It is useful if the electronic or electro-mechanical detection device 27 at least one contact or contactless sensor 28 . 29 , in particular at least one reed contact, Hall sensor, inductive sensor, capacitive sensor or opto-electronically operating sensor. With this at least one sensor 28 . 29 the detection device 27 can at least one key-dependent operating position of the mechanical lock 8th be sensory detected.

According to an expedient embodiment, a first reed contact 30 and a locally distant, another reed contact 31 provided, whereby different positions, in particular a rest or locking position 37 and an actuation or release position 36 of the mechanical lock 8th are reliably detectable. These are reed contacts 30 . 31 by a first permanent magnet 32 and by a second permanent magnet 33 control or circuit technology influenced. It is useful if the first permanent magnet 32 the first reed contact 30 assigned functionally and the other permanent magnet 33 the further reed contact 31 is assigned functionally. It is practical in this context if a donor element 34 is provided, whose parking positions of the detection device 27 are reliably detectable. According to the advantageous embodiment are on this donor element 34 the first permanent magnet 32 and also the other permanent magnet 33 held, wherein the permanent magnets 32 . 33 on the encoder element 24 are positioned or supported distanced to each other.

It is practical if the donor element 34 within the recording cavity 17 is rotatably mounted or within the receiving recess 17 is rotatable. According to the illustrated embodiment, the donor element 34 disc-shaped and by means of an actuating nose 35 , in particular by means of the so-called closing nose of the lock 8th into one of the detection device 27 Recordable release or release order 36 - 5 - swiveling. In particular, the donor element 34 starting from a rest or blocking position 37 - 5 - by operating the lock 8th by means of a matching key, at least temporarily in the unlocking or release position 36 be transferred.

According to an embodiment variant can also be provided, at least one boundary wall 20 the recording well 17 to form transparent or translucent plastic and an optoelectronic detection device 27 in the manner of a transmitted light or reflection light barrier.

The detection device 27 can be designed according to an appropriate training such that they both for detecting the rest or locking position 37 of the lock 8th , as well as for detecting the activatable by a key operation release position 36 is trained. This increases the reliability or interference and manipulation security of the detection device 27 , From a purely functional point of view, the mere capture of the release order would be 36 sufficient - all other positions of the lock 8th could basically be interpreted as non-release or as lock. In contrast, by a sensory detection both the rest or blocking position 37 , as well as the release order 36 , the security against unauthorized use due to manipulative interference and also the reliability due to a single sensor or Auswertungsfehlers, for example, by interference or by applying an external magnetic field, significantly increased. This is especially true when the detection device 27 or with the detection device 27 connected control device 9 only a direct and relatively prompt transition from the detected rest or blocking position 37 in the detected release position 36 as a deliberate, user-initiated release evaluates.

The detection device 27 can with the control device 9 be line connected or a subcomponent of the control device 9 form. Preferably, the control device 9 the charging connection device 1 for the software-controlled activation of rights of use of the charging connection device 1 depending on detection states of the detection device 27 educated. The lock 8th is executed according to an expedient embodiment in key switch function. One from the detection device 27 provided release position key signal is thereby from the control device 9 as an authorization identifier for a use release of the charging connection device 1 processed. It is practical if the donor element 34 or the closing or operating nose 35 of the lock 8th against the force of an elastically resilient spring-elastic resetting spring element 38 in the release position 36 is convertible. This makes it possible, a standard built-lock lock 8th , in particular a cylinder lock 10 to provide with a button switching function. In particular, while the donor element 34 or the movement-coupled actuating nose 35 tends towards the resting or blocking position 37 - 5 - urged.

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

As already explained above, according to an advantageous embodiment variant, it is possible to use the mechanical locking lock 8th if necessary with an already delivered or installed charging connection device 1 easy to retrofit. For this is the recording deepening 17 for the lock 8th in the case 2 or in the housing surface 16 already trained. Optionally, it is provided that a breakthrough 48 in the housing surface 16 , which breakthrough 48 for inserting a form-compatible locking lock 8th into the receiving cavity 17 is provided after removal of a blind cover 14 from the case 2 - 5 - can be made accessible. The electronic or electromechanical detection device 27 is already standard in the case 2 installed, in particular a boundary wall 20 the recording well 17 already assigned. At least the detection device 27 pre-installed in such a way that it can detect at least one actuation position of a standardized, form-compatible locking lock 8th is trained. According to the example, the detection device 27 the bottom of the receiving well 17 forming boundary wall 20 assigned.

It is useful in the case of a form for retrofitting, if a standard lock 8th , in particular a lock cylinder or a cylinder lock 10 without the use of tools on the charging connector 1 can be implemented, in particular in the receiving well 17 of the housing 2 can be used. In particular, it is expedient if the mechanical lock 8th immediately after insertion into the receiving recess as usage control means for the charging connection device 1 is usable after the respective operating positions of the lock 8th , in particular of its actuating nose 35 , from the detection device 27 directly or indirectly via an intermediate donor element 34 - 5 - are detectable. According to an advantageous embodiment, it is provided that the receiving recess 17 without an opening of the housing 2 the charging connection device 1 is accessible. This can be done, for example, by removing an optional blind cover 14 - 5 - as previously stated. Then the lock is 8th without access to the interior of the housing 2 , In particular without a possibility of touching the electrical components in the housing 2 , into the recording pit 17 used. It is important that the insertion of the lock 8th without opening the case 2 is possible 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 thereby the shutdown of the line-side voltage or energy supply for a secure installation of the lock 8th be unnecessary.

According to an appropriate measure can be provided that in the receiving well 17 at least one locking device 40 is formed, with which the lock lock 8th after insertion or insertion into the receiving recess 17 noticeably locked so that the lock 8th secured against falling out automatically. This locking device 40 can at least one resiliently mounted locking projection 41 include, which with a standard fixing hole 42 or with a demgemäßen depression in the mechanical lock lock 8th interacts. In particular, the latching projection locks 41 in the presence of a planned inserted or positioned lock lock 8th into the fixing hole 42 and thus signals the receipt of the plan or proper relative position of the lock 8th within the recording cavity 17 ,

The locking device 40 can in addition to the locking projection 41 at least one guiding or holding element 43 for the mechanical lock 8th exhibit. This guiding or holding element 43 is included in the recording 17 used or used. To an unauthorized removal of the lock 8th from the recording cavity 17 To prevent, it is advantageous if the actuating lug 35 an abutment element 44 or a stop surface 45 in the recording cavity 17 engages as soon as the lock lock 8th into the receiving cavity 17 is inserted and the key or the operating nose 35 of the lock 8th Schwenkwinkelstellungen are taken, which between the rest or blocking position 37 of the lock 8th and the release order 36 of the lock 8th lie. The abutment element 44 or the stop surface 45 can be part of the locking device 40 or at least one of these elements can also be an integral part of the recording cavity 17 or the receiving body 22 be.

According to a suitable measure, it is provided that the lock 8th only when taking an installation position 46 of the lock 8th - as in 4 indicated by dashed lines - in the receiving recess 17 can be used or from the receiving recess 17 is removable. Taking this installation position 46 is the operating nose 35 of the lock 8th within the outer surfaces 47 of the lock housing or cylinder lock 10 positioned or within the profile cross-section transverse to the longitudinal axis of the locking lock 8th positioned. Only when taking this installation position 46 of the lock 8th which installation position 46 Only with a suitable key is ingestible, the lock can 8th into the receiving cavity 17 inserted or from the receiving recess 17 be removed. For inserting the lock 8th into the receiving cavity 17 is in the cover plate 13 or in another housing surface 16 of the housing 2 the previous breakthrough 48 formed, whose outline contour substantially the cross-sectional contour of the mechanical lock lock 8th when taking the installation position 46 corresponds - 4 , In particular, the abutment element is also 44 or the guiding or holding element 43 designed such that the lock 8th only when taking the installation position 46 from the guide or holding element 43 removed or in the guide or holding element 43 within the recording cavity 17 can be used. Thus, on the one hand, a built-in fuse, but also a so-called core pull protection for the preferred by an end user tool-free implementable lock 8th created. In particular, this can be a standardized constructed half cylinder lock without tools, without an opening of the housing 2 and without disassembly work on the charging connection device 1 be used in this.

How best 6 it can be seen, a bottom section 49 the recording well 17 as one from the closed end towards the receiving opening 23 the recording well 17 running drainage channel 50 be designed for condensate, water spray or driving rain. In particular, it is thereby made possible that within the receiving recess 17 optionally accumulated liquids, especially due to driving rain or the like, not in the receiving recess 17 can accumulate, but can flow out of it at any time. This also renders the robustness or functional reliability of the charging connection device 1 elevated. This drainage channel 50 can be in a drainage hole 51 in the cover plate 13 or in a demgemäßen boundary wall or housing surface 16 of the housing 2 lead.

The embodiments show possible embodiments of the charging connection device 1 or the lock 8th , It should be noted at this point that the invention is not limited to the specifically illustrated embodiments thereof, but rather also various combinations of the individual embodiments are possible with each other and this possibility of variation due to the teaching of technical action by objective invention in the ability of this on this technical Area professional. 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 partially displayed off-scale and / or enlarged and / or reduced.

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

Above all, the individual in the 1 to 6 shown embodiments 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.

LIST OF REFERENCE NUMBERS

1

Charging port device

2

casing

3

Input interface

4

supply

5

Loading interface

6

Loading interface

7

receptacle

8th

keylock

9

control device

10

cylinder lock

11

face

12

boundary surface

13

cover

14

blind cover

15

keyway

16

housing surface

17

receiving recess

18

demarcation

19

inner space

20

boundary wall

21

breakthrough

22

receiving body

23

receiving opening

24

retaining collar

25

inside

26

adhesive pad

27

detection device

28

sensor

29

sensor

30

Reed contact

31

Reed contact

32

permanent magnet

33

permanent magnet

34

transmitter element

35

actuating nose

36

release position

37

Resting or blocking position

38

spring element

39

supporting member

40

locking device

41

catch projection

42

locating pin

43

Guide or holding element

44

Abutment member

45

stop surface

46

installation position

47

outer surface

48

breakthrough

49

bottom section

50

drainage channel

51

drain hole

V

electric vehicle

A

energy storage

e

charging electronics

M

Power supply network

C

charge cable

P1

plug

P2

plug

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 4532418 A [0006]
• DE 4213414 C2 [0006]
• FR 2766950 A1 [0006]
• JP 11-122714A [0006]
• US 6362594 B2 [0006]
• WO 2007/141543 A2 [0006]
• WO 2010/011545 A1 [0006]
• WO 2010/133959 A2 [0006]
• AT 507605 A1 [0006]

Claims (20)

Charging connection device ( 1 ) for electric vehicles (V), with at least one input interface ( 3 ) for feeding electrical energy from a fixed 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), comprising a plurality of electrotechnical components comprising an electronic control device ( 9 ) for switching, measuring or monitoring the recorded and / or the emitted electrical energy, and with a housing enclosing the electrotechnical components ( 2 ), wherein the charging connection device ( 1 ) a mechanical lock ( 8th ) for the regulation of rights of use for the charging connection device ( 1 ) or for subsequent assignment of a mechanical lock as required ( 8th ) is provided for the regulation of rights of use, characterized in that the lock ( 8th ) at least predominantly in one in the housing surface ( 16 ) receiving survey ( 17 ) is inserted or can be used therein, which receiving recess ( 17 ) as a liquid-tight or splash-proof boundary ( 18 ) between the outside and the interior ( 19 ) of the housing ( 2 ) and that outside the receiving cavity ( 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 in the receiving recess ( 17 ) received or absorbable lock ( 8th ) without a direct mechanical connection to the lock ( 8th ) contactlessly by a boundary wall ( 20 ) of the reception ( 17 ) is detectable through. 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 opto-electronically operating sensor. Charging connection device according to claim 1 or 2, characterized in that the detection device ( 27 ) for detecting the rest or blocking position ( 37 ) of the lock ( 8th ) and also for detecting an activatable by a key operation release position ( 36 ) of the lock ( 8th ) is trained. 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 through breakthrough trained boundary walls ( 20 ) is made of plastic. Charging connection device according to one of the preceding claims, characterized in that the receiving recess ( 17 ) through a cup-shaped receiving body ( 22 ) with a receiving opening ( 23 ) at least partially bounding retaining collar ( 24 ) is formed, over which retaining collar ( 24 ) the receiving body ( 22 ) on the inside ( 25 ) a housing wall of the housing ( 2 ) is sealingly supported or held. Charging connection device according to one of the preceding claims, characterized in that the locking lock ( 8th ) by a standardized cylinder lock ( 10 ), in particular by a half-cylinder lock is formed. Charging 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 ( 8th ) after insertion into the receiving cavity ( 17 ) noticeably engages and is secured against falling out. Charging connection device according to one of the preceding claims, characterized in that the locking lock ( 8th ) a by actuation of a suitable key pivotable actuating nose ( 35 ), which actuating lug ( 35 ) an abutment element ( 44 ) or a stop surface ( 45 ) in the Repository ( 17 ) engages as soon as the lock ( 8th ) into the Repository ( 17 ) and by the key or the operating lug ( 35 ) of the lock ( 8th ) Pivoting positions are taken, which between the rest or blocking position ( 37 ) of the lock ( 8th ) and the release order ( 36 ) of the lock ( 8th ) lie. Charging 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 ( 8th ) into one of the detection device ( 27 ) recordable release position ( 36 ) is pivotable. Charging connection device according to claim 9, characterized in that on the encoder element ( 34 ) at least one first permanent magnet ( 32 ) and at least one to the first permanent magnet ( 32 ) distant, further permanent magnet ( 33 ) is held. Charging connection device according to claim 9 or 10, characterized in that the Encoder element ( 34 ) against the force of an elastically yielding and resilient resetting spring element ( 38 ) into the release position ( 36 ) is convertible. Charging connection device according to one of the preceding claims, characterized in that a bottom section ( 49 ) of the reception ( 17 ) as one from the closed end towards the receiving opening ( 23 ) of the reception ( 17 ) running drainage channel ( 50 ) is designed for condensate, spray or driving rain. Charging connection device according to one of the preceding claims, characterized in that non-contact detection elements of the detection device ( 27 ), in particular reed contacts ( 30 . 31 ) or Hall sensors, on a common support element ( 39 ), in particular on a printed circuit board, are held and this support element ( 39 ) on the inside of the receiving recess ( 17 ) facing away from the outer side of the receiving recess ( 17 ) is attached. Charging connection device according to one of the preceding claims, characterized in that the locking lock ( 8th ) only when assuming an installation position ( 46 ), in which an actuating nose ( 35 ) of the lock ( 8th ) within the outer surfaces ( 47 ) of the lock ( 8th ) or within the transverse to the longitudinal axis of the lock ( 8th ) profile profile is positioned in the receiving recess ( 17 ) or even from the exception ( 17 ) is removable. Charging connection device according to claim 5, characterized in that the receiving body ( 22 ) by an adhesive bond, in particular by a double-sided adhesive pad ( 26 ), on the inside ( 25 ) of the housing ( 2 ) is attached liquid-tight. Charging connection device according to one of the preceding claims, characterized in that the receiving recess ( 17 ) is formed of plastic and a comprehensive protection against contact and an isolation against voltage-carrying, electrical components in the interior ( 19 ) of the housing ( 2 ) trains. 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 subcomponent of the control device ( 9 ) and that the control device ( 9 ) for the software-controlled activation of rights of use of the charging connection device ( 1 ) as a function of detection states of the detection device ( 27 ) is trained. Charging connection device according to one of the preceding claims, characterized in that the locking lock ( 8th ) in key-button function, and that one of the detection device ( 27 ) provided release position key signal from the control device ( 9 ) as an authorization flag for a use release of the charging connection device ( 1 ) is processed. Charging connection device according to one of the preceding claims, characterized in that the receiving recess ( 17 ) for the lock ( 8th ) and the detection device ( 27 ) for detecting at least one operating position of the lock ( 8th ) are designed such that a standardized lock ( 8th ), in particular a cylinder lock ( 10 ), without the aid of tools at the charging connection device ( 1 ) can be implemented, in particular in the receiving well ( 17 ) of the housing ( 2 ) and then as usage control means for the charging connection device ( 1 ) is usable. Charging connection device according to one of the preceding claims, characterized in that the receiving recess ( 17 ) without opening the housing ( 2 ) of the charging connection device ( 1 ) is accessible, so that the lock ( 8th ) without access to the interior ( 19 ) of the housing ( 2 ) into the Repository ( 17 ) can be used.

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