Motor vehicle charging socket with pneumatic charging plug ejection means and motor vehicle equipped with same

Abstract

For the purpose of rapid automatic removal of a charging plug (20) from a charging column, a motor vehicle charging socket (10) is provided, having a charging plug receiving means (15) which receives a charging plug (20), a charging plug ejection means (55) which removes the charging plug (20) from the charging plug receiving means (15), wherein the charging plug ejection means (55) has a pneumatic drive means (57) in order to drive the charging plug (20) in a removal direction (IV) counter to an insertion movement direction (III), and the one pneumatic drive means (57) has a drive means contact surface (70, 75) which is at least temporarily in contact with a corresponding charging plug contact surface (80, 85) of the charging plug (20) during a movement in the removal direction (IV), wherein the drive means (57) has a piston (60, 65) which has the drive means contact surface (70, 75) and can be moved in the insertion movement direction (III) and in the removal direction (IV). The motor vehicle charging socket (10) is characterised by a fluid container (150) which contains compressed air and is fluidically operatively connected to the motor vehicle charging socket (10), and by a compressed air line (135, 130) which fluidically operatively connects the fluid container (150) to a piston receptacle (100, 105) in which the piston (60, 65) is accommodated in a fluid-tight manner, wherein the piston (60, 65) is operatively connected to the compressed air at its surface (90, 95) diametrically opposite the drive means contact surface (70, 75) in order to drive the charging plug (20).

Description

[0001] 25-0529

[0002] 1

[0003] Motor vehicle charging socket with pneumatic charging plug ejection device and motor vehicle equipped therewith

[0004] The present invention relates to a motor vehicle charging socket with a charging plug ejection means according to claim 1 and a motor vehicle equipped therewith according to claim 6.

[0005] To electrically charge a motor vehicle equipped with a traction battery, it is generally known to manually insert a charging plug, connected to an electrical energy source, in particular a charging station, via a charging cable, into a corresponding vehicle charging socket located on the vehicle. During the charging process, the charging plug is locked in the vehicle charging socket. At a desired time, for example, when the traction battery has been charged to the desired level, the lock is released, so that the charging plug can be manually removed by a person located near the vehicle charging socket, i.e., outside the vehicle.

[0006] There may be situations in which the person in question does not wish to manually remove the charging plug from the vehicle's charging socket. This could be the case, for example, if the person inside the vehicle feels unsettled or even threatened by events outside and wants to quickly leave the location where the vehicle is connected to the charging station via the charging cable. Another reason could be that the driver cannot or does not wish to leave the vehicle due to a physical limitation or for comfort reasons.

[0007] For this reason, vehicle charging sockets with charging plug ejection devices have been devised, in which a charging plug located in the vehicle charging socket can be removed from a charging plug receptacle using the charging plug ejection devices.

[0008] Corresponding devices are from DE 102010038568 A1, DE 102011 083 788 A1, DE 102013107645 A1, DE 102015118312 A1, DE 10201721501025-0529

[0009] 2

[0010] A1, DE 102019 106282 A1, DE 102021 126340 A1, DE 102022002919 A1, US 2018 / 0201138 A1, US 3431 428 A and CN 108515851 A known

[0011] From DE 102023 109393 A1, a motor vehicle charging socket is known which is designed to be installed in a motor vehicle, with

[0012] a charging plug receptacle designed to receive a charging plug, at least one charging plug ejection means designed to remove the charging plug from the charging plug receptacle, wherein

[0013] the charging plug ejection device has at least one pneumatic drive means to drive the charging plug in a removal direction against an insertion movement direction, and

[0014] the at least one pneumatic drive means has at least one drive means contact surface which is configured to be in contact with a corresponding charging plug contact surface of the charging plug at least temporarily during a movement in the distance direction, wherein

[0015] the drive means has at least one piston that has a contact surface with the drive means and is movable in the insertion direction and in the removal direction.

[0016] More precise details regarding the design of the pneumatic drive system cannot be found in DE 102023 109393 A1.

[0017] It is therefore an object of the present invention to provide means by which the known motor vehicle charging socket can be further developed.

[0018] This problem is solved by a motor vehicle charging socket with the features of claim 1.

[0019] Specifically, this task is solved by a vehicle charging socket designed to be installed in a motor vehicle, with:

[0020] a charging plug receptacle designed to accept a charging plug, 25-0529

[0021] 3

[0022] at least one charging plug ejection device designed to remove the charging plug from the charging plug receptacle, wherein

[0023] the charging plug ejection device has at least one pneumatic drive means to drive the charging plug in a removal direction against an insertion movement direction, and

[0024] the at least one pneumatic drive means has at least one drive means contact surface which is configured to be in contact with a corresponding charging plug contact surface of the charging plug at least temporarily during a movement in the distance direction, wherein

[0025] the drive means has at least one piston that has a contact surface with the drive means and is movable in the insertion direction and in the removal direction.

[0026] The vehicle charging socket according to the invention is characterized by:

[0027] at least one fluid container containing compressed air, which is fluidically connected to the vehicle charging socket,

[0028] at least one compressed air line which fluidically connects the fluid container to a piston receptacle in which the piston is fluid-tightly received, wherein

[0029] the piston is arranged to be in operative contact with the compressed air on its surface diametrically opposite the drive medium contact surface in order to drive the charging plug.

[0030] The charging plug ejection device has at least one drive element configured to propel the charging plug in a ejection direction opposite to the insertion direction. This enables a path-optimized, and therefore time-optimized, removal of the charging plug from the vehicle charging socket, minimizing the time between actuation of the drive element and the actual automated removal of the charging plug from the vehicle charging socket.

[0031] The at least one drive means has at least one drive means contact surface which is configured to be in contact with a corresponding charging plug contact surface of the charging plug at least temporarily during a movement in the distance direction. This allows for a short-term, i.e., impulse-like, or continuous 25-0529

[0032] 4

[0033] Contact is generated between the aforementioned contact surfaces in order to initiate and, if necessary, maintain movement of the charging plug from the vehicle charging socket.

[0034] Furthermore, the drive mechanism is designed to have at least one piston, movable in both the insertion and removal directions, with the drive mechanism having a contact surface. This creates a simple yet reliable drive mechanism.

[0035] The fluid reservoir can advantageously be designed to be replaceable. In this case, the fluid reservoir can, in particular, be designed as a compressed air cartridge that is replaced with a spare compressed air cartridge after it has been used up. Alternatively, the fluid reservoir can be designed to be connected to an air supply device, in particular a pump that supplies it with air, so that the fluid reservoir can be (re)filled with air as needed.

[0036] The compressed air line can be configured either with rigid air line elements, in particular pipes, or with flexible air line elements, in particular hoses, or with a mixture of rigid and flexible air line elements. This allows for flexible integration of the vehicle charging socket according to the invention across different vehicle types or vehicle series.

[0037] It should be noted that the vehicle charging socket according to the invention can have one or more pistons. Each piston is received in a separate piston receptacle such that its respective surface, diametrically opposite the drive contact surface, is in operative contact with the compressed air to drive the charging plug. In other words, the air supplied by the fluid reservoir acts against a surface of the piston that is spaced apart from the far side of the piston, i.e., the drive contact surface. According to a preferred embodiment, at least two piston receptacles are operatively connected to each other fluidically in parallel by a compressed air line, thereby advantageously exerting a uniform air pressure on the surfaces of the pistons that are diametrically opposite the drive contact surfaces.This advantageously ensures that the pistons move uniformly towards the charging plug when compressed air is released, thus against its charging plug-25-0529.

[0038] 5

[0039] Contact surfaces, advanced to ensure a smooth movement of the charging plug out of the charging socket.

[0040] This advantageously provides a comparatively simple yet reliably functioning vehicle charging socket with a pneumatically operated charging plug ejector. This allows for the automated removal of the charging plug from the vehicle charging socket, thus eliminating the need for manual removal by a person outside the vehicle.

[0041] In principle, the vehicle charging socket according to the invention can have its own, standalone control and / or regulating means to enable the initiation, execution, and / or termination of the removal process of the charging plug from the vehicle charging socket. For this purpose, the vehicle charging socket according to the invention is equipped with a valve element that is operatively connected to the control and / or regulating means. According to a preferred embodiment, the vehicle charging socket according to the invention has at least one valve element operatively connected to the compressed air line and / or the fluid reservoir, which is configured to be operatively connected to on-board electronics located in the vehicle.Therefore, the movement of the pistons in the piston housings can be initiated or stopped in a particular direction using the vehicle's on-board electronics for central operating functions, by making a suitable adjustment of the valve element via the on-board electronics. The valve element itself can be designed in any suitable way, in particular as an electromagnetically controlled directional control valve.

[0042] In a manner known per se, a vehicle charging socket has a charging socket housing in which the charging plug receptacle is provided. According to a preferred embodiment, this charging socket housing has recesses, openings, or the like, through which the pistons of the charging plug ejection device move towards and against corresponding parts of the charging plug for the purpose of ejecting the charging plug from the vehicle charging socket. If no charging plug ejection device is to be provided in a vehicle charging socket, watertight sealing means, in particular plugs, can be provided in the recesses, openings, etc. If, on the other hand, a charging plug ejection device is to be provided in such a charging socket housing, 25-0529

[0043] 6

[0044] The waterproof sealing elements can be removed from the recesses, openings, etc. This advantageously creates a charging socket that allows for use both with and without a charging plug ejector.

[0045] According to a preferred embodiment of the vehicle charging socket according to the invention, a housing is provided in which the piston receptacles, along with the movable pistons and at least a portion of the compressed air line, are accommodated. The housing is attached to a part of the charging socket, in particular its body, and / or a body component, and has openings through which the pistons extend towards the charging plug contact surfaces. In other words, the components required for driving the pistons can be combined in a housing as a module and positioned on the charging socket, in particular its body, thereby simplifying the assembly of the vehicle charging socket according to the invention. Furthermore, as previously disclosed, it is possible to equip only certain vehicle charging sockets with a charging plug ejection device, while other structurally identical vehicle charging sockets can be provided without one.

[0046] In principle, it is possible to remove the charging plug from the charging plug receptacle regardless of its locking status. This could potentially damage the charging plug, the vehicle's charging socket, or even the vehicle itself. If this is undesirable, a preferred embodiment provides at least one charging plug locking device configured to release a charging plug located in the receptacle before or when the charging plug ejection device removes the plug from the receptacle.

[0047] For this purpose, the valve means and the charging plug locking means can preferably be operatively connected to the on-board electronics.

[0048] Advantageously, a control and / or regulating means can be provided on the vehicle charging socket according to the invention, which is configured to communicate with on-board electronics located in the vehicle. This allows 25-0529

[0049] 7

[0050] Advantageously, the charging plug ejector located in the vehicle charging socket according to the invention can be activated and / or deactivated with the aid of on-board electronics, particularly those located in the vehicle. This makes it particularly advantageous to control other control units and / or communication devices of the vehicle based on data or electrical signals representing the activation, operation, and / or deactivation of the charging plug ejector, and in turn to activate, operate, and / or deactivate them.In particular, it may be provided that, upon activation of the charging plug ejection device, the doors and / or flaps and / or windows and / or roof surfaces of the motor vehicle are controlled and / or regulated in such a way that they close and / or lock, the motor vehicle itself is put into a state of readiness for driving, an optical and / or acoustic signal tone is emitted and / or data communication is established via a communication device located in the motor vehicle, in particular with an emergency control center or a law enforcement agency, in order to transmit or output information representing an emergency situation.

[0051] A further object of the present invention is to provide a motor vehicle in which the automated removal of a charging plug from a vehicle charging socket can be achieved using simple, pneumatically based means. This object is achieved by a motor vehicle that has at least one vehicle charging socket of the type disclosed above. The advantages mentioned above apply accordingly.

[0052] The motor vehicle according to the invention is preferably a security vehicle, in particular a motor vehicle with integrated armor to protect occupants or cargo from external attacks.

[0053] According to a preferred embodiment of the vehicle according to the invention, the fluid reservoir is positioned in an interior area of ​​the vehicle and away from the vehicle's charging port. In particular, the fluid reservoir can be positioned in the area of ​​a frunk or a section of the vehicle interior that is easily accessible to a user, possibly by simply removing and replacing a cover. This advantageously improves accessibility to the fluid reservoir, allowing for easy maintenance and / or replacement. 25-0529

[0054] 8

[0055] According to an advantageous further development, the following operation of the motor vehicle according to the invention can be provided:

[0056] As a first step, it is checked whether a charging plug ejection request signal is present.

[0057] This signal can be initiated, in particular, by a person inside the vehicle who wishes to eject the charging plug from the charging socket. The input can be haptic and / or acoustic. For this purpose, the vehicle must be equipped with at least one microphone or input device, in particular a switch, a button, a control knob, a touch-sensitive surface, or the like, which is in direct communication with the charging plug ejection mechanism and / or indirect communication via on-board electronics located in the vehicle. Operation via a smartphone is particularly advantageous.

[0058] If no charging plug ejection signal is present, the method according to the invention can be terminated or restarted. However, if a charging plug ejection signal is present, the charging plug ejection device will, in principle, be activated until the charging plug is ejected from the charging socket.

[0059] First, a check is performed to ensure the charging cable is de-energized. If the charging cable is not de-energized, it is de-energized. If the charging cable is indeed de-energized, the charging plug is unlocked. After unlocking the charging plug, the ejection mechanism is activated until the charging plug is completely mechanically detached from the charging socket.

[0060] According to an advantageous further development of the method according to the invention, the following steps are provided:

[0061] During or immediately following the mechanical disconnection of the charging cable from the charging socket, the vehicle is made ready to drive. This allows the vehicle to be quickly moved from its location. 25-0529

[0062] 9

[0063] Alternatively or additionally, it may be stipulated that the vehicle is closed during or immediately following the mechanical disconnection of the charging cable from the charging socket. In other words, some or all open surfaces, in particular windows, sunroofs, convertible tops, doors, and front or rear hatches, are closed and, if necessary, locked.

[0064] It should be noted that the execution of the above-mentioned procedural steps can be triggered by the actuation of a single actuating device.

[0065] The following is a detailed, non-prejudicative, and in particular limiting, description of an embodiment of the present invention with reference to the attached figures, which are not to scale:

[0066] Fig. 1 is a simplified sectional view of a part of a motor vehicle according to the invention, which is equipped with a partially shown motor vehicle charging socket according to the invention, located in a first operating position.

[0067] Fig. 2 shows the vehicle charging socket shown in Fig. 1 in a second operating position.

[0068] Fig. 3 is a flowchart illustrating the operational sequence of Fig. 1 and Fig. 2.

[0069] The depicted motor vehicle shows.

[0070] Figure 1 shows a symbolic sectional view of an electrically powered motor vehicle 1. A vehicle charging socket 10 is mounted in an opening in the body 5 of the vehicle 1 in a manner known per se. A charging plug 20 is located in a charging plug receptacle 15 arranged within the vehicle charging socket 10, the charging cable 25 of which is only partially shown. At its far end, the charging cable 25 is connected to a charging station (not shown). The charging plug 20 is detachably fastened to the vehicle charging socket 10 by means of a charging plug locking device 30. As shown in Figure 1, the charging plug 20 is located in its 25-0529

[0071] 10

[0072] Locking position, in which a latch 35 of the charging plug locking device 30 engages through a charging socket housing 40 of the vehicle charging socket 10 into a corresponding receptacle 45 of the charging plug 20 to prevent unintentional removal of the charging plug 20 from the vehicle charging socket 10. To assume a release position, in which the charging plug 20 can be removed from the vehicle charging socket 10, the latch 35 is removed from the receptacle 45, as symbolized by the double arrow I. To initiate, maintain, and deactivate the corresponding movement of the latch 35 into or out of the receptacle 45, the charging plug locking device 30 is operatively connected to on-board electronics 50 located in the vehicle 1, as symbolized by the double arrow II, which represents a signal line.

[0073] The vehicle charging socket 10 is equipped with a pneumatically operated charging plug ejector 55, which is designed to remove the charging plug 20 from the charging plug receptacle 15. According to this embodiment, the charging plug ejector 55 has two spaced-apart pistons 60 and 65, movable in the insertion and removal directions of the charging plug 20, respectively, and acting as drive means 57. While piston 60 has a drive means contact surface 70, piston 65 has a drive means contact surface 75. The drive means contact surface 70 rests against a corresponding charging plug contact surface 80 of the charging plug 20. The drive means contact surface 75, in turn, rests against another corresponding charging plug contact surface 85 of the charging plug 20, which is spaced apart from the first-mentioned charging plug contact surface 80.The piston 60 has a surface 90 diametrically opposite the drive medium contact surface 70. The piston 65, in turn, has a surface 95 diametrically opposite the drive medium contact surface 75.

[0074] The two pistons 60 and 65 are each located in a piston receptacle 100 and 105, respectively. Their respective heads, which for clarity are not marked with reference numerals, are fluid-tight and longitudinally displaceable within their respective piston receptacles 100 and 105, i.e., in a direction essentially parallel to the insertion direction III. The piston receptacles 100 and 105, together with the pistons 60 and 65 contained therein, are located in a housing 110, which is attached to the end wall 115 of the vehicle charging socket 10 by means of fastening means not shown here for clarity, e.g.

[0075] Screws, mounted. 25-0529

[0076] 11

[0077] The housing 110 has a first opening 120, which is aligned with a corresponding opening in the end wall 115, which for clarity is not marked with a reference symbol. This allows the piston 60 to extend from the housing 110 towards the charging plug contact surface 80.

[0078] The housing 110 also has a second opening 125, which is aligned with a corresponding opening in the end wall 115 (not labelled for clarity). This allows the piston 65 to extend from the housing 110 towards the charging plug contact surface 85.

[0079] Finally, a section 130 of a compressed air line 135 is located in the housing 110, which is fluidically connected at one end to the piston receptacle 100 and at the other end to the piston receptacle 105. The respective outlets of this section 130 of the compressed air line 135 are located upstream of the surface 90 of the piston 60 and the surface 95 of the piston 65, respectively.

[0080] The compressed air line 135 is led through an opening 140 from the housing 110 and fluidically connected to a valve element 145, which in turn is fluidically connected downstream to a fluid reservoir 150 containing compressed air. According to the embodiment of the invention shown here, the fluid reservoir 150 is interchangeably connected to the line 135. It is positioned within an area of ​​an interior 155 of the motor vehicle 1, which is easily accessible to a user (not shown here) but is located away from the charging plug receptacle 15 and the housing 110, as symbolized by line IV. If, for example, the charging plug receptacle 15 is located in the rear area of ​​the motor vehicle 1, the fluid reservoir 150 can be, for example, interchangeably concealed under a side panel of the trunk. If, on the other hand, the charging plug receptacle 15 is located, for example, in the front area of ​​the motor vehicle 1, the fluid reservoir 150 can, for example, be located in the rear area of ​​the vehicle 1.be housed in a replaceable frunk.

[0081] According to this embodiment, the valve element 145 is designed as a spring-loaded, electrically actuated 3 / 2-way valve. In the operating position shown in Fig. 1, 25-0529

[0082] 12

[0083] The valve medium 145 is in a rest position in which, firstly, the flow of compressed air from the fluid reservoir 150 through the compressed air line 135 and its section 130 towards the piston receptacles 100 and 105 is prevented, as symbolized by reference numeral V. Secondly, the piston receptacles 100 and 105 are fluidically connected to the environment, so that the atmospheric pressure surrounding the motor vehicle 1 is present in them, as symbolized by reference numeral VI.

[0084] The valve medium 145 is operatively connected to the on-board electronics 50 of the motor vehicle 1, so that signals can be exchanged between them, as symbolized by the double arrow VII.

[0085] If the charging plug 20 is to be removed from the vehicle charging socket 10, the on-board electronics 50 sends a signal to an actuator connected to the latch 35, which removes the latch from the receptacle 45 (see double arrow I). Furthermore, the on-board electronics 50 sends a signal to the valve element 145 (see double arrow VII). In this case, the 3 / 2-way valve of this embodiment moves into an operating position.

[0086] Release position, in which compressed air supplied by the fluid reservoir 150 flows through the compressed air line 135 and its section 130 in the direction of the piston receptacles 100 and 105, respectively, through the valve medium 145. This is illustrated in Fig. 2, where reference numeral VIII symbolizes the flow through the valve medium 145. The flow continues until the charging plug 20 is completely removed from the charging plug receptacle 15. The corresponding ejection direction IX is opposite to the insertion direction III.

[0087] Fig. 3 now shows a method for operating the motor vehicle 1 described in Fig. 1 in the form of a flowchart.

[0088] In the first step S1, it is checked whether a charging plug ejection signal is present. This can be entered manually or acoustically, for example, by an input device (not shown) located on the vehicle 1 or a separate input device, or by a smartphone. If no charging plug ejection signal is present, the procedure is terminated immediately, as symbolized by step S10. 25-0529

[0089] 13

[0090] If, however, a charging plug ejection signal is present, step S2 checks whether the charging cable 20 is de-energized. If it is not de-energized, it is de-energized, as symbolized by step S3. If, on the other hand, it is already de-energized according to the check in step S2, or de-energized according to step S3, the charging plug 25 is unlocked according to step S4.

[0091] Then, according to step S5, the charging plug ejection device 55 is actuated until the charging cable 20 is mechanically detached from the vehicle charging socket 10. Whether a corresponding detachment has occurred is checked according to step S6. If no detachment has occurred, the procedure is repeated starting at step S2. If, however, a corresponding detachment has occurred, the procedure could, in principle, be terminated according to step S10.

[0092] According to the embodiment shown here, there is a further step S7, in which the vehicle 1 is made ready to drive. Simultaneously, an emergency signal can be sent to an operations center, e.g., a police or security service, according to step S8. In a further step S9, any open areas of the vehicle 1, e.g., doors, side windows, or roof systems (not shown), can be closed and locked. The process is then terminated in step S10.

[0093] Reference symbol list:

[0094] 1 motor vehicle

[0095] 5 Bodywork

[0096] 10 vehicle charging sockets

[0097] 15 Charging plug socket

[0098] 20 charging plugs

[0099] 25 charging cables-0529

[0100] 14

[0101] Charging plug locking device latch

[0102] Charging socket housing mount

[0103] On-board electronics

[0104] Charging plug ejection device, drive mechanism

[0105] Pistons

[0106] Pistons

[0107] Drive element contact surface Drive element contact surface Charging plug contact surface Charging plug contact surface Area

[0108] Area

[0109] 0 Piston mounting

[0110] 5 Piston mount

[0111] 0 cases

[0112] 5 Front wall

[0113] 0 first opening

[0114] 5 second opening

[0115] 0 Part of a compressed air line

[0116] 5 Compressed air line

[0117] 0 Opening

[0118] 5 Valve media

[0119] 0 fluid containers

[0120] 5 Interior

[0121] Direction of movement 25-0529

[0122] 15

[0123] II. Active connection

[0124] III Insertion direction IV Limit area

[0125] V Solenoid valve component

[0126] VI Solenoid valve component

[0127] VII. Active compound

[0128] VIII Solenoid valve component

[0129] IX Ejection direction

Claims

25-0529 16 Claims 1. Motor vehicle charging socket (10) designed to be installed in a motor vehicle (1), with a charging plug receptacle (15) which is designed to receive a charging plug (20), at least one charging plug ejection means (55) configured to remove the charging plug (20) from the charging plug receptacle (15), wherein the charging plug ejection means (55) has at least one pneumatic drive means (57) to drive the charging plug (20) in the opposite direction of an insertion movement (III) in a removal direction (IV), and wherein the at least one pneumatic drive means (57) has at least one drive means contact surface (70, 75) configured to be in contact with a corresponding charging plug contact surface (80, 85) of the charging plug (20) at least temporarily during a movement in the removal direction (IV), wherein the drive means (57) has at least one piston (60, 65) having the drive means contact surface (70, 75) movable in the insertion direction (III) and in the removal direction (IV), characterized by at least one fluid container (150) containing compressed air, which is fluidically connected to the vehicle charging socket (10), at least one compressed air line (135, 130) which fluidically connects the fluid reservoir (150) to a piston receptacle (100, 105) in which the piston (60, 65) is fluid-tightly received, wherein the piston (60, 65) is arranged to be in operative contact with the compressed air on its surface (90, 95) which is diametrically opposite the drive medium contact surface (70, 75) in order to drive the charging plug (20).

2. Motor vehicle charging socket (10) according to claim 1, characterized by at least one valve element (145) operatively connected to the compressed air line (135) and / or the fluid reservoir (150), which is configured to be operatively connected to an on-board electronics (50) located in the motor vehicle (1). 25-0529 17 3. Motor vehicle charging socket (10) according to one of the preceding claims, characterized by a housing (110) in which the piston receptacles (100, 105) together with the movable pistons (60, 65) and at least a part (130) of the compressed air line (135) are accommodated, wherein the housing (110) is attached to a part of the motor vehicle charging socket (10) and / or a body component and has openings (120, 125) through which the pistons (60, 65) extend in the direction of the charging plug contact surfaces (80, 85).

4. Motor vehicle charging socket (10) according to one of the preceding claims, characterized by at least one charging plug locking means (30) which is configured to release a charging plug (20) located in the charging plug receptacle (15) before or when the charging plug ejection means (55) removes the charging plug (20) from the charging plug receptacle (15).

5. Motor vehicle charging socket (10) according to claim 2 and claim 4, characterized in that the valve means (145) and the charging plug locking means (30) are operatively connected to the on-board electronics (50).

6. Motor vehicle (1), characterized by at least one motor vehicle charging socket (10) according to one of the preceding claims.

7. Motor vehicle (1) according to claim 4, characterized in that the fluid container (150) is positioned in an interior space (155) of the motor vehicle (4) and away from the motor vehicle charging socket (10).

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