DE102022135058A1 - DEVICE FOR ELECTRICALLY CONNECTING A CHARGING INTERFACE TO AN ELECTRICAL STORAGE DEVICE OF A VEHICLE - Google Patents

Abstract

A device for electrically connecting an electrical charging interface (7) to an electrical storage device (3) of a vehicle (1) is proposed, wherein the charging interface (7) has an electrical connection unit (8) which is movable between two end positions with respect to an outer side (9) of the vehicle (1), wherein the electrical connection unit (8) is adjusted in the first end position to establish an electrical charging connection with respect to a vehicle interior (10) in the direction of an opening (6) of a vehicle body (2) and is adjusted in the second end position with respect to the first end position in the direction of the vehicle interior (10), and wherein the electrical connection unit (8) is operatively connected to the electrical storage device (3) via at least one cable (14) attached thereto. The at least one cable (14) is fixed in an area bordering the charging interface (7) on the inside of the vehicle body (2) by means of a fastening device (15) such that a free length of the at least one cable (14) between the fastening device (15) and the electrical connection unit (8) allows a deformation of the cable (14) adapted to the adjustment path of the electrical connection unit (8) between the end positions during an adjustment of the electrical connection unit (8). Furthermore, a vehicle with such a device is proposed.

Description

The technology according to the invention relates to a device for electrically connecting a charging interface to an electrical storage device of a vehicle according to the type defined in more detail in the preamble of patent claim 1 and to a vehicle with such a device.

Electrically driven vehicles known from series production comprise at least one electric motor for driving the vehicle and an electrical storage device for storing electrical current for the electric motor. In order to charge the electrical storage device with electrical current or to discharge current from it, a vehicle-side charging interface is usually connected to a charging cable at an easily accessible point on the body shell. The charging interface itself is usually designed with a so-called charging socket, which can be coupled to a plug of the charging cable and which is connected via at least one cable containing electrical lines either directly to the storage device or to other cables or busbars leading to the storage device.

In order to arrange and protect the charging socket in a space-saving manner on the one hand and to enable ergonomically simple coupling of the charging cable with the charging socket on the other, solutions have been developed in which the charging socket can be moved between a position lowered in the body when not charging and a position adjusted towards the vehicle's outer skin when charging.

Such a movable charging socket is, for example, from the EP 2 646 277 B1 known. In this case, a charging socket is arranged in a body opening of a vehicle body, which can be closed with a lid. The charging socket is arranged in a receiving device that extends into the vehicle interior and is designed to be movable relative to the body opening. Opening the lid causes the charging socket to be moved relative to the receiving device from the vehicle interior towards the body surface. A charging plug can then be easily plugged into the charging socket. If the lid is closed, the charging socket together with the plugged-in charging plug is moved relative to the receiving device towards the vehicle interior into a protected charging position, whereby the charging socket and the charging plug are protected against external influences during electrical charging of an internal vehicle electric traction battery.

Based on the above-mentioned prior art and the described findings of the inventors, a preferred object of the technology according to the invention is to reduce or eliminate at least one disadvantage of a previously known solution or to propose an alternative solution. In particular, a preferred object of the technology disclosed here is to provide a device for electrically connecting a charging interface to an electrical storage device of a vehicle, which is improved with regard to at least one of the following factors: production time, costs, complexity of production, assembly and maintenance, use of installation space, operational safety, sustainability, strength, total weight, component reliability and/or service life. Further preferred objects can result from the advantageous effects of the technology disclosed here.

The problem(s) is/are solved by a device according to the features of patent claim 1 and a vehicle equipped therewith. The patent claims dependent thereon represent preferred embodiments.

• - wobei die Ladeschnittstelle eine elektrische Verbindungseinheit aufweist, die in Bezug auf eine Außenseite des Fahrzeugs zwischen zwei Endstellungen bewegbar ist,
• - wobei die elektrische Verbindungseinheit in der ersten Endstellung zum Herstellen einer elektrischen Ladeverbindung gegenüber einem Fahrzeuginneren in Richtung einer Öffnung einer Fahrzeugkarosserie verstellt ist und in der zweiten Endstellung gegenüber der ersten Endstellung in Richtung des Fahrzeuginneren verstellt ist, und
• - wobei die elektrische Verbindungseinheit über wenigstens ein hieran befestigtes Kabel mit der elektrischen Speichereinrichtung in Wirkverbindung steht.

A device for electrically connecting an electrical charging interface to an electrical storage device of a vehicle is therefore proposed,

• - wherein the charging interface comprises an electrical connection unit which is movable between two end positions with respect to an outside of the vehicle,
• - wherein the electrical connection unit is adjusted in the first end position for establishing an electrical charging connection relative to a vehicle interior in the direction of an opening of a vehicle body and is adjusted in the second end position relative to the first end position in the direction of the vehicle interior, and
• - wherein the electrical connection unit is operatively connected to the electrical storage device via at least one cable attached thereto.

According to the invention, the at least one cable is fixed in an area bordering the charging interface on the inside of the vehicle body by means of a fastening device such that a free length of the at least one cable between the fastening device and the electrical connection unit allows a deformation of the cable adapted to the adjustment path of the electrical connection unit between the end positions during an adjustment of the electrical connection unit.

The device according to the invention offers the advantage that the electrical connection unit, which can be designed as a conventional charging socket, can be adjusted in the first end position or charging position in the direction of an opening in a vehicle body and thus enables an operator to conveniently couple the charging socket with a charging plug of an external charging station, while the electrical connection unit can be lowered in the direction of the vehicle interior in its second end position or non-charging position, whereby due to the fastening device for the at least one cable and its defined free length, a predetermined cable deformation results, which can be designed in such a way that neither the electrical conductivity of the lines of the cable itself nor the electrical conductivity of a connection of the cable to the electrical connection unit is impaired.

The cable routing and the free cable length have a significant impact on the service life and functionality of the electrical connection between the electrical storage device and the charging interface. Uncontrolled and undesirable bends or tensile loads on the electrical cables can, for example, lead to cable breakage and/or cause damage to the connection areas of the cable, which can permanently impair the functionality of the charging interface.

In the device according to the invention, a so-called fixed point for the electrical lines in the vehicle is created via the fastening unit, by means of which a free cable length of the electrical lines in the vehicle between the fastening unit and the electrical connection unit can be defined in a structurally simple manner, which promotes the service life. As a result of this and with a free cable length specified according to the adjustment path of the connection unit, the electrical coupling between the connection unit and the electrical storage unit is almost maintenance-free over the entire service life of the vehicle, and the electrical storage unit can be charged with electrical energy via the charging interface with a high degree of reliability.

Conveniently, the electrical cables can be combined into one flexible cable, but it is also conceivable to use several cables, for example two.

Outside the described deformation range of the at least one cable, the current can also be carried via rigid busbars, so-called busbars, to which the at least one flexible cable can be connected, for example via a screw contact connection.

In an advantageous embodiment, the at least one cable between the fastening device and its connection to the movable electrical connection unit can have a flexible curved region, the bend of which extends in the second end position of the electrical connection unit, in particular approximately by the adjustment path of the connection unit, further in the direction of the vehicle interior than in the first end position of the connection unit.

The at least one cable between the fastening device and its connection to the electrical connection unit or charging socket can have at least approximately the shape of a curved L, wherein the corner of the "L" can be bent and the legs of the "L" can be compressed towards each other. The free length of the at least one cable can be designed such that a bent area of the cable adjacent to the corner of the "L" has a greater curvature in the second end position or non-charging position of the connection unit than in the first end position of the electrical connection unit.

It is understood that the individual legs of the “L”, in particular the leg leading to the fastening device, can also have a curvature.

In an advantageous development, the free length of the at least one cable can be selected such that the cable between the electrical connection unit and the fastening unit is initially guided from the electrical connection unit essentially in a first spatial direction, i.e. in the direction of the vehicle interior, and then in an arc from the connection unit essentially in the direction of a second spatial direction, which is perpendicular to the first spatial direction, to the fastening device.

This offers the possibility of connecting at least one cable to the connection unit in a space-saving manner while observing permissible bending radii.

Due to the curved course in the longitudinal direction of the vehicle and in the transverse direction of the vehicle, the electrical cables can be routed in a space-efficient manner within the vehicle body from the electrical connection unit to the fastening device on the body or another vehicle-fixed element and further in the direction of the electrical storage unit.

The fastening device and a connection of the at least one cable to the electrical connection unit in its first end position or charging position can lie approximately in a common plane running parallel to the outside of the vehicle. With such a lateral fastening of the cable, which is particularly advantageous from an installation space perspective, the cable then runs at least approximately parallel to the vehicle's outer skin in the charging state.

If one considers a favorable cable routing geometrically, the at least one cable in the first end position of the electrical connection unit can enclose an acute angle α, which can in particular be in a range between 0° and 20°, with respect to a line between the fastening device and its connection to the electrical connection unit, and in the second end position a larger angle α, in particular in a range between 15° and 60°, in the direction of the vehicle interior. The cable bend can again take place both in the transverse direction of the vehicle and in the longitudinal direction of the vehicle.

A further development can provide that the at least one cable is stiffened in an area adjacent to its connection to the electrical connection unit in such a way that it extends at least approximately in a straight line in the direction of movement of the fastening unit. This can be advantageous in particular in the case of a linear guide together with the electrical connection unit.

To secure the at least one cable to the vehicle body or another vehicle-fixed element, the fastening device can comprise common fastening means from the group of clamp fastening, loop fastening, clip connection, melt connection and adhesive connection.

In the first end position of the connection unit, the at least one cable can be partially surrounded by a housing of the connection unit. It is then possible, for example, to apply a cooling medium to the connection areas of the cable to the electrical connection unit during a charging process and to regulate their temperature. This makes it easy to set the operating temperature of the connection areas to a temperature level at which the electrical storage unit can be charged with a desired high charging power.

The housing can form a common receiving device for at least the charging socket and the cover element, wherein the charging socket and the cover element are movably guided on the common receiving device and can be fastened to the vehicle body via the receiving device or the housing. This ensures that the housing combines various functions, such as the storage, guidance and vehicle connection of at least the charging socket and the cover element, and thus forms a module that can be manufactured with a small variety of components and is easy to assemble, which reduces the costs of a charging interface equipped with it accordingly. Since additional functional components are usually connected to both the cover component and the charging socket, the housing designed in this way enables a wide range of functional integration in a module that can be attached quickly and easily to the body.

In one embodiment of the invention, the housing can be designed in a pot-like manner with at least two side walls and a wall connecting the side walls, whereby the side walls and the connecting wall form a receiving area for the cover element and the charging socket. The term "pot-like" does not mean that it has to be a largely closed housing. Rather, depending on the application, recesses can be provided on all sides, so that the housing can also be reduced to a frame-like bearing block. The housing can be manufactured as a cast part, for example.

In a further embodiment of the housing, which also has a high level of functional integration and as a result only requires little assembly effort and low manufacturing costs, it has a through-opening for electrical cables in the rear area. The cables can be provided for the electrical coupling of the charging socket with the vehicle's electrical storage unit.

In addition, the housing can have a connection area for a drive unit for the cover element and the charging interface to improve functional integration. For example, a common electric motor can be provided, but several electric motors can also be provided for different driven components. In any case, the housing can then be made available together with the drive unit as a pre-assembled module that can be installed in a vehicle with little assembly effort.

In a space-saving design, the connection area for the drive unit is provided on the side facing away from the receiving area on at least one of the side walls. In the event of a fault, the drive unit can then be replaced with little effort.

In addition, there is the possibility of providing a further connection area of the recording device for connecting a sensor or the HMI interface. This can be a sensor for detecting the movement of the components connected to the recording device, but also a sensor for detecting the wishes of an operator. In a broader sense, buttons as well as voice recording devices and possibly also voice output devices, displays and similar means of communication for machine-human interaction with an operator come into consideration here.

To further improve the functional integration, the housing can be designed with guide rails into which the cover element engages with coupling elements. The cover element is then guided on the housing along the guide rails between a closed position and an open position. The guide rails can be provided at a distance from one another in the side walls, with two separate guide rails being provided in each side area.

Furthermore, to further increase the functional integration, the housing can be designed with a fastening unit for a linear guide for the charging socket and/or the HMI shield assigned to the charging socket.

The fastening unit can comprise through-openings in a rear wall of the housing through which guide rods of the linear guide can be guided in a structurally simple manner. Furthermore, the housing can have a cable guide unit in the area of which power and control cables are connected when installed.

The housing can be connected to the vehicle body with little effort if the fastening areas for connecting the housing to the vehicle body are designed as screw connections on the sides, for example.

With regard to the design of the electrical lines of the at least one cable, materials with low power losses, e.g. made of copper and/or aluminum, can be selected. The lines can be covered with an electrically insulating material, preferably flexible plastic, and can be cooled if necessary.

The invention is not limited to the specified combination of the features of the independent claim or the dependent claims. There are also possibilities to combine individual features with one another, even if they emerge from the claims, the following description of embodiments or directly from the drawing. The reference of the claims to the drawings by using reference symbols is not intended to limit the scope of protection of the claims.

Further advantages and advantageous embodiments of the invention emerge from the patent claims and the embodiment described in principle below with reference to the drawing.

• 1 eine vereinfachte dreidimensionale Ansicht eines Fahrzeugs mit einer Ladeschnittstelle an einer Öffnung einer Fahrzeugkarosserie des Fahrzeugs und einem Deckelelement zum Verschließen und Freigeben der Öffnung;
• 2 eine dreidimensionale Einzelansicht einer Ausstattung der Ladeschnittstelle mit einer Aufnahmevorrichtung für eine bewegliche Ladedose und das verstellbare Deckelelement in Fahrzeugaußenrichtung betrachtet.

It shows:

• 1 a simplified three-dimensional view of a vehicle with a charging interface at an opening of a vehicle body of the vehicle and a cover element for closing and releasing the opening;
• 2 a three-dimensional individual view of an equipment of the charging interface with a receiving device for a movable charging socket and the adjustable cover element viewed in the vehicle's outer direction.

Referring to 1 a vehicle 1 is shown with a vehicle body 2 and with an electrical energy storage device 3, which supplies at least one electrical drive machine of the vehicle 1 with electrical energy. The vehicle body 2 has an opening 6 at an ergonomically easily accessible location, which accommodates a charging interface 7 connected to the energy storage device 3 via an electrical line. The opening 6 therefore represents a charging recess through which an electrical charging device external to the vehicle can be brought into operative connection with the vehicle-side charging interface 7 in order to be able to charge the electrical energy storage device 3 of the vehicle 1 with electrical energy or to be able to discharge electrical energy from it. The opening 6 can be closed in the non-charging state with a cover element 5, which can be moved by motor into a position that releases the opening 6 for charging. The cover element 5 here represents a so-called charging flap, which is essentially designed as a flat or plate-like element with a carrier.

In 2 the electrical charging interface 7 is shown schematically in a top view and partially exposed, whereby an electrical connection unit 8 can be seen, which is designed here as a charging socket and is designed on its side facing the outside of the vehicle with a so-called HMI (Human-Machine Interface) shield 13, which surrounds the charging socket like a panel and via which an operator can make a charging request can express themselves and receive information, for example on the charging and/or vehicle status.

The electrical connection unit 8 can be moved between two end positions in relation to an outer side 9 of the vehicle body 2 of the vehicle 1. The electrical connection unit 8 is in the 2 shown first end position for establishing an electrical connection, ie a charging state, in the vehicle transverse direction y relative to a vehicle interior 10 in such a way in the direction of the opening 6 that the electrical connection unit 8 can be brought into operative connection in a simple manner with a further electrical connection unit 11, which is expediently a charging plug 11 here. The electrical connection unit 8 can then be brought into operative connection with little effort via the further electrical connection unit 11 and an electrical cable 12 connected to it with an electrical energy source external to the vehicle, such as a charging station.

In the second end position, the electrical connection unit 8 is in the 3 The cover component 5 then closes the opening 6 in the transverse direction y of the vehicle in the direction of the vehicle interior 10 in the manner shown in more detail. The cover component 5 then also closes the opening 6 in the 1 and 3 shown in more detail in order to protect the charging interface 7 against environmental influences. In the first end position or charging position of the electrical connection unit 8, the cover component 5 is completely displaced from engagement with the opening 6 in the direction of the vehicle interior 10 and, in the embodiment shown in the drawing, is located in the vertical direction z of the vehicle above the electrical connection unit 8.

To charge the electrical storage unit 3, the electrical connection unit of the electrical charging interface 7 is connected to the vehicle-side electrical storage unit 3 via a flexible electrical cable 14. The cable 14 is fixed between the electrical connection unit 8 and the electrical storage unit 3 on the vehicle side via a fastening unit 15. In other words, the fastening unit 15 on the vehicle body 2 or on a component fixed on the body side thus forms a so-called fixed point for the cable 14 on the vehicle 1. The fastening device 15 in the present case has a clamp fastening as the fastening means 22.

The free cable length of the cable 14 between the fastening unit 15 and the electrical connection unit 8 is designed such that a deformation of the cable 14 during the adjustment of the electrical connection unit 8 or charging socket 8 in the vehicle transverse direction y in the areas between the charging socket 8 and the fastening unit 15 neither impairs the electrical conductivity of the lines of the cable 14 nor the electrical conductivity of connection areas of the electrical lines of the cable 14 on the charging socket 8. The cable 14 is here formed in a conventional manner with electrical lines made of copper and/or aluminum and has an insulating sheath 23 made of flexible plastic.

The cable 14 has a flexible curved region 19 between the fastening device 15 and its connection 18 to the charging socket 8, the bend of which in the second end position or non-charging position of the charging socket 8 extends further in the direction of the vehicle interior 10, in particular approximately by the linear adjustment path of the charging socket 8 here, than in the charging position of the charging socket 8. The cable 14 between the fastening device 15 and its connection 18 to the charging socket 8 is shaped at least approximately like an "L" with curved legs and a rounded transition between the legs. Deviating from this, depending on the selected cable routing, a stronger curvature, which approaches a "U", can also result.

The free length of the cable 14 is selected here so that a bent area 19 of the cable 14 in the non-charging position of the charging socket 8 according to 3 has a stronger curvature than in the charging position of the charging socket 8 according to 2 .

Since the fastening device 15 in the embodiment shown is arranged to the side of the charging interface 7 close to the vehicle outer wall, it lies here approximately parallel to the connection 18 of the cable 14 to the charging socket 8 in its charging state in a common plane E running parallel to the outside 9 of the vehicle 1 with the connection 18 of the cable 14 to the charging socket 8. In this charging position, the cable 14 forms an acute angle α with a line L1 between the fastening device 15 and its connection 18 to the charging socket 8, which angle is well below 20° here. In the non-charging position according to 3 the cable 14 forms a larger angle α, which here is more than 20°, with respect to the line L1 in the direction of the vehicle interior 10.

According to the linear guide of the adjustable charging socket 8 provided here, the cable 14 in the embodiment shown is stiffened in an area 20 adjacent to its connection 18 to the charging socket 8 in such a way that it extends at least approximately straight in the direction of movement of the charging socket 8.

In the present embodiment, the charging interface is surrounded by a housing 21, which is 2 and 3 is shown partially cut away. The housing 21 here represents a common receiving device for at least the charging socket 8 and the cover element 5. This means that the charging socket 8 and the cover element 5 are movably guided on the trough-like housing 21, which forms a common receiving device, and are fastened to the vehicle body 2 via the housing 21, whereby an advantageous functional integrity of the mounting of two movable components is realized.

In this case, the housing 21 has side walls 24 and 25, which are each connected to a connecting wall 26, which represents a rear wall. In this case, the rear wall 26 with the side walls 24, 25 forms and delimits a receiving area 27, which is intended for receiving the cover element 5 and the charging socket 8. The rear wall 26 has a through-opening 28 for the electrical line 14, which serves to electrically couple the charging socket 8 to the electrical storage device 3 of the vehicle 1.

Furthermore, the housing 21 is provided with a fastening unit 29 for a linear guide for the charging socket 8 with the HMI (Human Machine Interface) shield 13 pointing towards the outside of the vehicle in the area of the rear wall 26. The charging socket 8 can be moved in the transverse direction y of the vehicle relative to the opening 6 via the linear guide, with a distance in the transverse direction y of the vehicle between the HMI shield 13 of the charging socket 8 pointing towards the outside of the vehicle being smaller in the open position of the cover element 5 than in the closed position of the cover element 5. This allows an operator to couple a charging plug or the like to the charging socket 8 in the most ergonomic way possible.

In addition, the housing 21 is designed with fastening areas 30, via which the housing 21 can be fastened to the vehicle body 2 on the side of the housing 21 facing away from the outer side 9.

Due to the high functional density of the housing 21, which can either be designed as a single piece or can be assembled from individual components during pre-assembly, a charging interface of an at least partially electrically driven vehicle can be designed in a structurally simple manner as a pre-assembled module that can be inserted into the vehicle body during a single assembly step and can be connected to it both mechanically, electrically and in terms of control technology.

LIST OF REFERENCE SYMBOLS

1

vehicle

2

Vehicle body

3

electrical storage device

5

Covering device, cover component

6

opening

7

Charging interface

8th

electrical connection unit, charging socket

9

Outside of the vehicle body

10

Vehicle interior

11

electrical connection unit, charging plug

12

electrical cable

13

HMI Shield

14

flexible electrical cable, cable

15

Mounting unit

18

Connection

19

curved area of the electrical cable

20

further area of electrical wiring

21

Housing

22

Fasteners

23

Sheathing

24

side wall

25

side wall

26

connecting wall, rear wall

27

Recording area

28

Passage opening

29

Mounting unit

30

Mounting area

E

level

L1

line

x

Vehicle longitudinal direction

y

Vehicle transverse direction

z

Vehicle vertical direction

α

angle

QUOTES INCLUDED IN THE DESCRIPTION

This list of documents listed by the applicant was 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 accepts no liability for any errors or omissions.

Cited patent literature

• EP 2646277 B1 [0004]

Claims (11)

Device for electrically connecting an electrical charging interface (7) to an electrical storage device (3) of a vehicle (1), - wherein the charging interface (7) has an electrical connection unit (8) which is movable between two end positions with respect to an outside (9) of the vehicle (1), - wherein the electrical connection unit (8) is adjusted in the first end position to establish an electrical charging connection relative to a vehicle interior (10) in the direction of an opening (6) of a vehicle body (2) and is adjusted in the second end position relative to the first end position in the direction of the vehicle interior (10), and - wherein the electrical connection unit (8) is operatively connected to the electrical storage device (3) via at least one cable (14) fastened thereto, characterized in that the at least one cable (14) is fixed in an area bordering the charging interface (7) on the inside of the vehicle body (2) by means of a fastening device (15) in such a way that a free length of the at least one cable (14) between the fastening device (15) and the electrical connection unit (8) allows a deformation of the cable (14) adapted to the adjustment path of the electrical connection unit (8) between the end positions during an adjustment of the electrical connection unit (8). Device according to Claim 1 , characterized in that the at least one cable (14) has a flexible curved region (19) between the fastening device (15) and its connection (18) to the electrical connection unit (8), the bend of which extends in the second end position of the electrical connection unit (8) in particular approximately by the adjustment path of the connection unit (8) further in the direction of the vehicle interior (10) than in the first end position of the connection unit (8). Device according to Claim 1 or 2 , characterized in that the at least one cable (14) between the fastening device (15) and its connection (18) to the electrical connection unit (8) has at least approximately the shape of a curved L, wherein the free length of the at least one cable (14) is designed in particular such that a curved region (19) of the cable (14) has a greater curvature in the second end position of the connection unit (8) than in the first end position of the electrical connection unit (8). Device according to one of the Claims 1 until 3 , characterized in that the fastening device (15) and a connection (18) of the at least one cable (14) to the electrical connection unit (8) in its first end position lie approximately in a common plane (E) running parallel to the outside (9) of the vehicle (1). Device according to one of the Claims 1 until 4 , characterized in that the at least one cable (14) in the first end position of the electrical connection unit (8) encloses an acute angle (α), in particular in a range between 0° and 20°, in the direction of the vehicle interior (10) with respect to a line (L1) between the fastening device (15) and its connection (18) to the electrical connection unit (8), and in the second end position encloses a larger angle, in particular in a range between 15° and 60°. Device according to one of the Claims 1 until 5 , characterized in that the at least one cable (14) is stiffened in a region (20) bordering its connection (18) to the electrical fastening unit (8) in such a way that it extends at least approximately rectilinearly in the direction of movement of the fastening unit (8). Device according to one of the Claims 1 until 6 , characterized in that the at least one cable (14) in the first end position is partially surrounded by a housing (21) which accommodates the electrical connection unit (8). Device according to one of the Claims 1 until 7 , characterized in that a housing (21) which accommodates the electrical connection unit (8) forms a common receiving device for at least the charging socket (8) and the cover element (5), wherein the charging socket (8) and the cover element (5) are movably guided on the housing (21) and can be fastened to the vehicle body (2) via the housing (21). Device according to Claim 8 , characterized in that the housing (21) is pot-shaped with at least two lateral walls (24, 25) and a wall (26) connecting the lateral walls (24, 25), which in particular represents a rear wall (26), wherein the lateral walls (24, 25) with the connecting wall (26) form a receiving area (27) for the cover element (5) and the charging socket (8). Device according to one of the Claims 1 until 9 , characterized in that the fastening device (15) comprises fastening means (22) from the group clamp fastening, loop fastening connection, clip connection, melt connection and adhesive connection. Vehicle (1) with an electrical storage device (3) and an electrical charging interface (7) which has an electrical connection unit (8) which is movable between two end positions with respect to an outer side (9) of the vehicle (1), characterized by a device for electrically connecting the electrical charging interface (7) to the electrical storage device (3) according to one of the Claims 1 until 10 .

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