Charging system for electrical storage

Abstract

The invention relates to a charging system (1) for electrical storage devices, in particular for batteries of electric vehicles, comprising a curb element, a charger (3) and a locking system (4), wherein the charger (3) is arranged in a cavity (5) of the curb element and is connected to the curb element, wherein the charger (3) has a charger housing (6) and a charging plug part (7), wherein the charging plug part (7) is arranged inside the charger housing (6). The system complexity of the charging system (1), in particular the locking system (4), is reduced and / or its ease of use is increased by being able to arrange a cover slide (8) of the locking system (4) in a locking position (VP) covering the charging plug part (7) and in a charging position (LP) releasing the charging plug part (7), wherein the cover slide (8) is translationally movable back and forth between the locking position (VP) and the charging position (LP).

Description

[0001] The invention relates to a charging system for electrical storage devices with the features of the preamble of claim 1.

[0002] As motor vehicles become increasingly electrified, numerous charging systems for the electrical storage devices of these vehicles, which will then be electric, must be installed in public spaces. These electrical storage devices are primarily designed as accumulators. The charging systems include, among other things, a charger with a charger housing and a charging plug. The charging plug is located inside the charger housing. The electrical storage device can be connected to the charging plug via a charging cable. The charging cable has a corresponding connector. To charge the electrical storage device, the charger is electrically connected to a power source, particularly via the power grid.

[0003] In the prior art, charging stations are known for implementing such charging systems. These stations are positioned above a drivable or pedestrian surface. However, such charging stations occupy a large amount of space and also constitute a traffic obstruction. To avoid such traffic obstructions and reduce the space required for the charging systems, it is known to provide charging systems with a curb element and a charger, wherein the charger is arranged in a cavity within the curb element and connected to it. Such charging systems with a curb element can then replace conventional curb elements without a charging function in public spaces, so that no additional space is required and no traffic obstruction is created by such a charging system. The charger housing has at least one opening through which the charging plug part is accessible for connection to the charging cable. Such charging systems, among other things,The combination of the curb element and the charger is also referred to as a curb charger.

[0004] In such charging systems, the opening of the charger housing, and thus the charging plug component, in particular the corresponding charging socket, is covered by a locking system when not in use to protect against environmental influences, vandalism, and unauthorized access. Such locking systems comprise, for example, a flap, a gear mechanism, and an actuator. The flap is coupled to the actuator by means of the gear mechanism in such a way that the flap can be positioned in a flap-charging position and a flap-closing position by rotating the flap. The opening can be closed by positioning the flap in its flap-closing position. A specific free opening cross-section is achieved when the flap is positioned in its flap-charging position.The opening's cross-sectional area is large enough to allow a charging cable, specifically its connector, to pass through. The flap must be mechanically locked in its closed position to protect against the aforementioned risks. It should only be accessible to the user after authorization when using the curbside charger and should only be able to be opened and positioned in its charging position. After charging is complete and the user has logged out, the flap must be securely closed and locked.

[0005] Separate technical mechanisms are known for implementing the functions of actuating and locking the flap, whereby actuating the flap refers to moving it between its closed and loaded positions. Such separate technical mechanisms require considerable effort, thereby increasing system complexity and costs. Furthermore, energy must be supplied to actuate each actuator, and even connecting the actuator to a designated energy source entails a corresponding design effort.

[0006] On the other hand, swiveling or extending charging plug components without a separate cover or flap are known. However, charging plug components that swivel or extend from near the ground are exposed to higher risks regarding dirt and sealing. Managing these risks technically is extremely complex.

[0007] The invention is therefore based on the objective of designing and / or further developing the loading system in such a way that the disadvantages of the prior art are avoided, or at least reduced, whereby in particular the system complexity of the loading system, especially the locking system, is to be reduced and / or its ease of use is to be increased.

[0008] This problem underlying the invention is now initially solved by a charging system for electrical storage devices with the features of claim 1.

[0009] One aspect of the invention is essentially that a cover slide of the locking system can be arranged in a locking position covering the charging plug part and in a charging position releasing the charging plug part, wherein the cover slide can be moved translationally back and forth between the locking position and the charging position.

[0010] This reduces system complexity, resulting in simpler individual components and reduced assembly effort. Furthermore, the cost of the locking system is also reduced. The translationally movable cover slide easily provides both adequate protection against environmental influences, such as water and / or dirt, and the ability to absorb mechanical loads, thus ensuring the charger's functionality. Vehicles and people can therefore be supported using the curb element, including the cover slide in its locked position. Driving or walking on the curb element, including the cover slide in its locked position, is permitted, particularly for a vehicle to drive onto the curb element.

[0011] Advantageously, the cover slide has a charging plug through-opening that passes through it. A charging cable connector can be positioned through this through-opening for connection to the charging plug when the cover slide is in the charging position. The charging cable connector and the charging plug can then be positioned coaxially. When the cover slide is in its closed position, the charging plug through-opening is located laterally next to the charging plug. The shape of the charging plug through-opening is adapted to the shape of the charging cable connector and has a contour that is essentially the same but slightly larger.

[0012] Preferably, the locking system comprises a locking system with at least one locking element. The locking element can be arranged in a locking position in at least one locking recess of the cover slide and / or at least partially in the charging plug through-opening in order to lock the cover slide in the locked position.

[0013] Unauthorized or accidental movement of the cover slide into its charging position is thus prevented. In particular, a cavity in the curb element and / or an interior space within the charger housing is sealed from the environment by means of the cover slide and / or the locking mechanism when the cover slide is locked in its closed position with the locking mechanism. Additional sealing elements such as sealing rings may also be provided for this purpose.

[0014] Preferably, the locking element is movable from the locking position to a release position, preferably located within the charger, to release the cover slide, particularly by means of the charging cable connector. The locking element is biased towards the locking position by means of at least one locking element return spring, preferably designed as a leaf spring.

[0015] The locking mechanism's preload automatically moves it into its locked position when the cover slide, moving from its loading position, reaches the closed position. This requires only the locking mechanism's return spring; no actuators with additional energy input are needed. The energy required to move the locking mechanism from the release position to the locked position is at least partially supplied to the return spring during the opposite movement. Preferably, even when the locking mechanism is in its locked position, a force from the return spring continues to act on the locking mechanism. Specifically, if the locking mechanism has been moved into its release position by means of the charging cable connector, the cover slide is then subsequently moved into its loading position by means of the charging cable connector.In particular, due to the essentially identical shape of the charging plug through-hole and the charging cable plug part, it is obvious to a customer what steps he must take to connect the charging cable plug part to the charging plug part in the charger housing.

[0016] According to an advantageous embodiment of the loading system, the locking element is rotatably and / or translationally movable between the locking position and the release position. Preferably, one locking element is provided which is translationally movable. More preferably, at least one further locking element is provided which is rotatably movable. In this case, two or three locking elements are particularly likely. However, the use of only one locking element or more than three locking elements, e.g., four to six locking elements, would also be conceivable.

[0017] According to a further preferred embodiment of the loading system, the cover slide is pre-tensioned towards the closing position by means of at least one cover slide return spring, in particular designed as a coil spring.

[0018] The cover slide is held in its charging position, in particular by the charging cable connector part connected to the charging plug part. Due to the preload of the cover slide, it is automatically moved into its locked position when the connection between the charging plug part and the charging cable connector part is released and the charging cable connector part is moved out of the charging plug opening. Only the cover slide's return spring is required for this; no actuators with an additional energy supply are necessary. The energy required to move the cover slide from the charging position to the locked position is at least partially supplied to the cover slide's return spring during the opposite movement. Preferably, but also when the cover slide is in its locked position, a force from the cover slide's return spring still acts on the cover slide.

[0019] It can be advantageous if the cover slide has a preferably nose-shaped insertion ramp on its upper side adjacent to the charging plug through-opening, by means of which, in particular, manual positioning of the charging cable plug part in the charging plug through-opening is simplified, at least in part, by contacting the insertion ramp and sliding along the insertion ramp.

[0020] The insertion ramp simplifies the process of moving the locking mechanism from its locked position to its released position using the charging cable connector. Similarly, it simplifies the process of moving the cover slide from its closed position to its charging position using the charging cable connector. The insertion ramp reduces the required precision of the operator's movements, allowing these operations to be performed safely even with minimal concentration.

[0021] Advantageously, the loading system has at least one locking bolt. The locking bolt engages in a groove on the cover slide that is aligned with the direction of movement of the cover slide.

[0022] The locking bolt prevents, or at least significantly hinders, the forced removal of the cover slide from the charger, for example, with a crowbar. Preferably, a locking bolt engages in a groove formed on each of two opposite sides of the cover slide. The locking bolt is preferably made of metal.

[0023] The locking bolt is preferably pre-tensioned essentially perpendicular to the direction of movement of the cover slide towards the groove base of the groove of the cover slide by means of a locking bolt tension spring, in particular designed as a coil spring.

[0024] The locking bolt tension spring ensures the desired position of the locking bolt in its corresponding groove. Preferably, two locking bolts engaging in opposing grooves are pre-tensioned by the same locking bolt tension spring, designed as a helical spring, which acts on the two locking bolts in opposite directions.

[0025] Preferably, the charger has at least two, and in particular three, convex contact areas on its underside for supporting the cover slide.

[0026] This ensures, firstly, good support of the cover carriage on the charger. Secondly, translational movement of the cover carriage is possible with minimal friction. Three contact areas effectively prevent tilting or rotation of the cover carriage.

[0027] According to an advantageous embodiment of the charging system, each contact area is formed by means of a preferably spring-mounted ball.

[0028] Such balls can further reduce friction during the translational movement of the cover slide.

[0029] Using the described loading systems with curb elements, conventional curb elements without a loading function can be replaced, or corresponding curb edges can be formed using other, preferably conventional, curb elements. The loading systems with curb elements shown here are used particularly adjacent to parking areas, such as on-street parking, customer and employee parking, and / or park-and-ride facilities.

[0030] There are now numerous possibilities for advantageously designing and further developing the charging system for electrical storage devices according to the invention. Reference is first made to the claims subordinate to claim 1. In the following, preferred embodiments of the charging system for electrical storage devices according to the invention will be explained and described in more detail with reference to the drawing and the accompanying description. The drawing shows: Fig. 1 In schematic representation an embodiment of the charging system for electrical storage devices in a side view, partly in section, Fig. 2 in schematic representation the embodiment of the charging system made of Fig. 1 with a cover slide in its closed position in a three-dimensional view from above, Fig. 3 in schematic representation the embodiment of the charging system made of Fig. 1 with the cover slide in its closed position and without a cover of the charger housing in a three-dimensional view from above, Fig. 4 in schematic representation the embodiment of the charging system made of Fig. 1 with the cover slide in its charging position and without a cover of the charger housing in a three-dimensional view from above, Fig. 5 in schematic representation parts of the exemplary embodiment of the charging system made of Fig. 1 with the cover slide in its charging position and with a charging cable plug part inserted into a charging plug part in a three-dimensional view from above, Fig. 6 in schematic representation parts of the exemplary embodiment of the charging system made of Fig. 1 with the cover slide in its closed position and with a locking body in its locking position in a side view, partly in section, Fig. Figure 7 shows a schematic representation of the exemplary embodiment of the charging system. Fig. 1 without a cover of the charger housing and without the cover slide in a top view, Fig. 8 in schematic representation parts of the exemplary embodiment of the charging system made of Fig. 1 with a locking body in its locking position in a three-dimensional view, Fig. 9 in schematic representation parts of the exemplary embodiment of the charging system made of Fig. 1, namely parts of the cover slide, several locking bodies and several locking body return springs in a three-dimensional view, Fig. 10 schematic representation of parts of the exemplary embodiment of the charging system made of Fig. 1 with the cover slide and contact areas for supporting the cover slide as well as with locking bolts in a further side view, partly in section, Fig. 11 in schematic representation parts of the exemplary embodiment of the charging system made of Fig. 1 with the cover slide and contact areas for supporting the cover slide as well as with further locking bolts in a side view, partly in section, and Fig. 12 in schematic representation parts of the exemplary embodiment of the charging system made of Fig. 1 with the cover carriage and contact areas for supporting the cover carriage in a side view, partly in section.

[0031] Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Fig. 10, Fig. 11 to Fig. Figures 12 each show, at least in part, a charging system 1 for electrical storage devices, in particular for batteries of electric vehicles, with a curb element (not shown here), a charger 3, and a locking system 4. The charger 3 is arranged in a cavity 5 of the curb element and connected to the curb element. The charger 3 has a charger housing 6 and a charging plug part 7. The charging plug part 7 is arranged inside the charger housing 6.

[0032] The upper surface of the charger housing 6 is partially formed by a cover 6.A, preferably made of sheet metal. The charging plug part 7 is connected to the charger housing 6, e.g., by screws. The charger housing 6 is preferably embedded in a concrete base of the curb element and forms a flat upper surface of the charging system 1 with this base.

[0033] A cover slide 8 of the locking system 4 is in a locking position VP covering the charging plug part 7 according to e.g. Fig. 1, Fig. 2 and Fig. 3 and in a charging position LP releasing the charging plug part 7 according to e.g. Fig. 4 and Fig. 5 can be arranged. The cover slide 8 can be moved translationally back and forth between the locking position VP and the loading position LP.

[0034] In the charger 3, the charging plug part 7, in particular a corresponding socket, is covered by the cover slide 8 in the locked position VP when not in use to protect against environmental influences, vandalism, and unauthorized access. The charger housing 6 is designed such that water drainage channels minimize the accumulation of dirt and water in the necessary movement areas of the cover slide 8, in particular on two slide runners of the cover slide 8.

[0035] The cover slide 8 has a charging plug through-opening 9 that penetrates the cover slide 8. A charging cable plug part 10 can be arranged to connect to the charging plug part 7 by penetrating the charging plug through-opening 9 when the cover slide 8 is in the charging position LP, wherein Fig. 5 shows this connected state.

[0036] The contour of the charging plug through-opening 9 of the cover slide 8 has the same contour as the charging cable connector part 10, with additional clearance. When the charging cable connector part 10 is positioned in the charging plug through-opening 9, a circumferential gap is thus formed between the charging cable connector part 10 and the cover slide 8, whereby contact between the charging cable connector part 10 and the cover slide 8 is possible in certain areas. When the cover slide 8 is positioned in the charging position LP and when the charging cable connector part 10 is positioned so that it passes through the charging plug through-opening 9, then movement of the cover slide 8 from the charging position LP to the closed position VP by the charging cable connector part 10 is prevented.

[0037] The locking system 4 has a locking system 11 with at least one locking element 12. The locking element 12 can be arranged in at least one locking recess 13 of the cover slide 8 and / or at least partially in the charging plug through-opening 9 in a locking position AP in order to lock the cover slide 8 in the locking position VP.

[0038] When the locking element 12 is in the locking position AP, movement of the cover slide 8 from the locking position VP to the loading position LP is prevented. The locking element 12 can only be positioned in the locking position AP if the cover slide 8 is in the locking position VP.

[0039] The locking element 12 is movable, in particular by means of the charging cable connector part 10, from the locking position AP to a release position FP, preferably formed within the charger 3, for releasing the cover slide 8, wherein this release position FP is in Fig. Figure 6 is shown with dotted lines. The locking element 12 is biased towards the locking position AP by means of at least one locking element return spring 14, in particular designed as a leaf spring. The locking element 12 is rotatably and / or translationally movable between the locking position AP and the release position FP.

[0040] Shown here are three locking elements 12: a first locking element 12.1, a second locking element 12.2, and a third locking element 12.3. The first locking element 12.1 is translationally movable. The second locking element 12.2 and the third locking element 12.3 are rotatable about a rotational axis. When the first locking element 12.1 is in its locking position AP, it projects into the charging plug through-opening 9, and two cylindrical projections of the first locking element 12.1 engage in corresponding cylindrical locking recesses 13 of the cover slide 8. These two cylindrical locking recesses 13 are provided opposite a top surface OS of the cover slide 8 into a bottom surface US of the cover slide 8.The cover slide 8 has two side walls which are aligned parallel to the direction of movement BR of the cover slide 8 and perpendicular to the top surface of the cover slide 8. The two side walls are arranged on opposite sides of the cover slide 8. Slide skids for supporting the cover slide 8 are formed on the underside of one of the side walls. The underside of the side walls then forms part of the entire underside US of the cover slide 8.

[0041] When the second and third locking elements 12.2, 12.3 are arranged in their respective locking positions AP, they each project into a corresponding locking recess 13 of the cover slide 8, which is formed on the side walls of the cover slide 8. The second and third locking elements 12.2, 12.3 project into their respective locking recesses 13 with a holding area that is eccentric to the axis of rotation. These locking recesses 13 for the second and third locking elements 12.2, 12.3 are formed by means of a respective projection on the inside of the two side walls of the cover slide 8. The second and third locking elements 12.2, 12.3 each have an actuation area located on a side opposite the holding area with respect to the axis of rotation. The actuation areas are arranged in recesses of the first locking body 12.1 when the locking bodies 12.1, 12.2, 12.3 are arranged in their respective locking positions AP. A locking body return spring 14 is provided for each locking body 12, 12.1, 12.2, 12.3, namely a leaf spring in each case, these leaf springs being formed by means of only one sheet metal.

[0042] The cover slide 8 is pre-tensioned towards the closed position VP by means of at least one cover slide return spring 15, which is preferably designed as a coil spring. The cover slide return spring 15 is preferably part of a spring-damper telescope. To prevent the cover slide 8 from tilting, a cover slide return spring 15 is connected to each of the two side walls of the cover slide 8. The cover slide return springs 15 act between the cover slide 8 and the charger housing 6.

[0043] The cover slide 8 has a preferably nose-shaped insertion ramp 16 on its upper surface OS adjacent to the charging plug through-opening 9, by means of which, in particular, manual positioning of the charging cable plug part 10 is simplified, at least partially, in the charging plug through-opening 9 by contacting the insertion ramp 16 and sliding along it. The charging cable plug part 10 can also be supported on the insertion ramp 16 to move the cover slide 8 from the closed position VP to the charging position LP.

[0044] The loading system 1 has at least one locking bolt 17 which engages in a groove 18 of the cover slide 8 which is aligned in the direction of movement BR of the cover slide 8.

[0045] A total of four locking bolts 17 are provided here, with two of the four locking bolts 17 lying in a straight line perpendicular to the direction of movement BR and projecting into opposing grooves 18. Two of the four locking bolts 17 project into the same groove 18 and are spaced apart from each other in the direction of movement BR.

[0046] The locking bolt 17 is pre-tensioned essentially perpendicular to the direction of movement BR of the cover slide 8 towards the groove base of the groove 18 of the cover slide 8 by means of a locking bolt tension spring 19, in particular designed as a coil spring.

[0047] The groove base is formed by the respective side wall of the cover slide 8. The two locking bolts 17, which lie in the same line perpendicular to the direction of movement BR, are pre-tensioned by the same locking bolt tension spring 19, so that a total of two locking bolt tension springs 19 are provided here. The locking bolts 17 serve as theft protection or protection against vandalism and prevent the cover slide 8 from being removed unintentionally.

[0048] The charger 3 has at least two, in particular three, convex contact areas 20 for supporting the cover slide 8 on its underside US. The cover slide 8 is supported in particular on its slide skids and / or on the area formed between the two side walls of the cover slide 8.

[0049] Each contact area 20 is formed by means of a preferably spring-mounted ball 21. Such spring-mounted balls 21 reduce the contact with the cover slide 8 to a point-like area. This ensures minimal friction and robustness against icing. The spring action of the balls 21 allows the cover slide 8 to brace itself against the charger housing when subjected to a load from a vehicle impacting it, thus transferring the forces to the charger housing.

[0050] How Fig. Figure 12 shows that three contact areas 20 are provided, two of which interact with the slide skids and lie on the same line perpendicular to the direction of movement BR. A third contact area 20 is supported on the area formed between the two side walls of the cover slide 8 and thus has a smaller distance to the top surface OS of the cover slide 8 than the other two contact areas 20. The sectional view from Fig. 12 alternates between different cutting planes.

[0051] Modular expansion of the sliding cover carriage 8 is possible, e.g. with position feedback, with an electromagnet, with an electric drive actuator and / or with a locking system of the cover carriage 8 and / or the locking body 12, thus enabling a variety of variants previously unknown in this product environment.

[0052] The charging systems 1 with curb element are typically used to create a curb edge in conjunction with other conventional curb elements without a charging function. Such curbs also serve to delineate parking spaces for motor vehicles. The charging system 1 with curb element shown here can be installed next to such parking spaces, allowing the vehicle's electrical system to be charged while the vehicle is parked there.

[0053] The following describes the charging process of an electric vehicle. The driver of the electric vehicle first parks next to the charging system 1 with the curb element. The driver authorizes the charging system and unlocks any optional locking system on the cover slide 8 and / or the locking mechanism 12. The driver then connects a charging cable to the electric vehicle and connects the charging cable connector 10 to the charging plug 7 in the curb element. To connect the charging cable connector 10 to the charging plug 7, the driver first moves the locking mechanisms 12, 12.1, 12.2, and 12.3 to their respective release positions FP and then slides the cover slide 8 with the charging cable connector 10 from the locked position VP to the charging position LP.Using the charging cable connector part 10, which is inserted into the charging plug opening 9, the cover slide 8 is moved / shifted until the charging cable connector part 10 is coaxially aligned with the now exposed charging plug part 7. The driver then establishes an electrical connection between the charging cable connector part 10 and the charging plug part 7 by axially inserting the charging cable connector part 10 into the charging plug part 7. The charging plug part 7 is preferably designed as a female connector, i.e., a socket. The charging cable connector part 10 is preferably designed as a male connector, i.e., a plug. After the electrical connection between the charging cable connector part 10 and the charging plug part 7 has been established, the electric vehicle's electrical storage system begins charging. After or to complete this charging process, the driver disconnects the connection between the charging plug part 7 and the charging cable connector part 10.After the charging cable connector part 10 is pulled out of the charging connector part 7, the cover slide 8 moves automatically from the charging position LP to the locking position VP due to the cover slide return spring 15, and then the locking elements 12, 12.1, 12.2 and 12.3 move automatically from their respective release positions FP to their respective locking positions AP due to the locking element return springs 14. Optionally, the optionally present locking system of the cover slide 8 and / or the locking element 12 is then locked. Reference symbol list 1 charging system 3 chargers 4 locking system 5 Cavity 6 charger housings 6.A Charger housing cover 6 7 Charging plug part 8 cover sleds 9 Charging plug pass-through opening 10 Charging cable plug part 11 Locking system 12 locking bodies 12.1 First locking mechanism 12.2 second locking body 12.3 third locking body 13 Locking recess 14 Locking body return spring 15 Cover slide return spring 16 Insert ramp 17 locking bolts 18 Groove of the cover slide 8 19 locking bolt tension spring 20 Contact area 21 balls VP Locking position of the cover slide 8 LP Loading position of the cover carriage 8 AP Locking position of the locking body 12 FP Release position of the locking body 12 BR Direction of movement of the cover carriage 8 OS Top of the cover slide 8 US Underside of the cover slide 8

Claims

Charging system (1) for electrical storage devices, in particular for batteries of electric vehicles, comprising a curb element, a charger (3) and a locking system (4), wherein the charger (3) is arranged in a cavity (5) of the curb element and is connected to the curb element, wherein the charger (3) has a charger housing (6) and a charging plug part (7), wherein the charging plug part (7) is arranged inside the charger housing (6), characterized in that a cover slide (8) of the locking system (4) can be arranged in a locking position (VP) covering the charging plug part (7) and in a charging position (LP) releasing the charging plug part (7), wherein the cover slide (8) is translationally movable back and forth between the locking position (VP) and the charging position (LP). Charging system (1) according to claim 1, characterized in that the cover slide (8) has a charging plug through-opening (9) penetrating the cover slide (8), wherein a charging cable plug part (10) for connection with the charging plug part (7) can be arranged penetrating the charging plug through-opening (9) when the cover slide (8) is in the charging position (LP). Charging system (1) according to claim 1 or 2, characterized in that the locking system (4) has a locking system (11) with at least one locking element (12), wherein the locking element (12) can be arranged in at least one locking recess (13) of the cover slide (8) and / or at least partially in the charging plug through-opening (9) in a locking position (AP) to lock the cover slide (8) in the locking position (VP). Charging system (1) according to claim 3, characterized in that the locking element (12), in particular by means of the charging cable plug part (10), is movable from the locking position (AP) to a release position (FP), preferably formed within the charger (3), for releasing the cover slide (8), wherein the locking element (12) is biased towards the locking position (AP) by means of at least one locking element return spring (14), in particular designed as a leaf spring. Charging system (1) according to claim 4, characterized in that the locking element (12) is rotatably and / or translationally movable between the locking position (AP) and the release position (FP). Loading system (1) according to one of the preceding claims, characterized in that the cover slide (8) is pre-tensioned towards the closing position (VP) by means of at least one cover slide return spring (15), in particular designed as a coil spring. Charging system (1) according to one of claims 2 to 6, characterized in that the cover slide (8) has on its upper side (OS) adjacent to the charging plug through-opening (9) a preferably nose-shaped insertion ramp (16) by means of which, in particular, manual positioning of the charging cable plug part (10) at least partially in the charging plug through-opening (9) is simplified by contacting the insertion ramp (16) and sliding along the insertion ramp (16). Loading system (1) according to one of the preceding claims, characterized in that the loading system (1) has at least one locking bolt (17), wherein the locking bolt (17) engages in a groove (18) of the cover slide (8) aligned in the direction of movement (BR) of the cover slide (8). Loading system (1) according to the preceding claim, characterized in that the locking bolt (17) is pre-tensioned substantially perpendicular to the direction of movement (BR) of the cover slide (8) towards the groove base of the groove (18) of the cover slide (8) by means of a locking bolt tension spring (19), in particular designed as a coil spring. Charging system (1) according to one of the preceding claims, characterized in that the charger (3) has at least two, in particular three, convex contact areas (20) for supporting the cover slide (8) on its underside (US). Charging system (1) according to the preceding claim, characterized in that each contact area (20) is formed by means of a preferably spring-mounted ball (21).

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