Motor-operated cover device

Abstract

The invention relates to a motor-driven covering device (2) for covering and exposing a charging connection (8) arranged on the body (4) of an electric vehicle (6) with respect to a vehicle exterior (16), comprising a cover flap (10) for covering the charging connection (8) in a closed state (I), a motor (12) operatively connected to the cover flap (10) for driving an opening movement and a closing movement of the cover flap (10), a power transmission means/device (14) for transmitting a motor power of the motor (12) for carrying out the opening movement and the closing movement of the cover flap (10), guide means/element (18) for guiding the cover flap (10) along a movement path during the opening movement and the closing movement of the cover flap (10), the motor-driven covering device (2) being configured in such a manner that the cover flap (10) can be moved along the body (4) of the electric vehicle (6) in a motor-driven manner during the opening and closing movement, wherein the body (4) at least partially covers the cover flap (10) with respect to the vehicle exterior (16) in an opened state (II) of the covering device (2).

Claims

1. A motor-driven covering device for covering and exposing a charging connection arranged on a body of an electric vehicle with respect to a vehicle exterior, comprising: a cover flap for covering the charging connection in a closed state, a motor operatively connected to the cover flap for driving an opening movement and a closing movement of the cover flap, a power transmission device for transmitting a motor power of the motor for executing the opening movement and the closing movement of the cover flap, guide element for guiding the cover flap along a movement path during the opening movement and the closing movement of the cover flap, wherein the motor-driven covering device is configured in such a way that the cover flap can be moved along the body of the electric vehicle in a motor-driven manner during the opening and closing movement, the body covering the cover flap at least partially with respect to the vehicle exterior in an opened state of the covering device wherein the power transmission device is selected from a group consisting of a toothed rack drive, a toggle drive and a four-bar drive.

2. The motor-driven covering device (2) according to claim 1, wherein the power transmission device (14) is formed in the form of a four-bar drive, the four-bar drive preferably having at least two joint elements (38, 40) for transmitting a motor power of the motor (12) for carrying out the opening movement and the closing movement of the cover flap (10), in particular a first and second joint element (38, 40) being connected to the cover flap (10) and the first joint element (38) being engaged with the motor (12).

3. The motor-driven covering device according to claim 1, wherein the guide element comprise at least one guide rod.

4. The motor-driven covering device according to claim 1, wherein the guide element comprises at least two guide rails with guide grooves for at least guiding guide rods or corresponding guide ribs.

5. The motor-driven covering device according to claim 1, wherein a support frame is provided for receiving the cover flap.

6. The motor-driven covering device according to claim 1, wherein the guide element comprise at least two positioning device for performing a movement of the cover flap towards the body or away from the body, wherein the at least two positioning device are formed in the form of an angled guide of a guide groove for moving the cover flap towards the body or away from the body during an opening movement and a closing movement of the cover flap or wherein an additional control element is provided for assisting a movement of the cover flap in the direction of the bodywork or away from the bodywork.

7. The motor-driven covering device according to claim 1, wherein the motor is formed in the form of an actuator.

8. The motor-driven covering device according to claim 1, wherein a seal is provided for preventing the entry of water.

9. The motor-driven covering device according to claim 1, wherein a housing is provided for accommodating other components of the motor-operated covering device.

10. The motor-driven covering device according to claim 1, wherein a sensor is provided for at least detecting an opening or closing command for at least opening or closing the cover flap.

11. The motor-driven covering device according to claim 1, wherein an illumination device is provided for at least illuminating a charging connection or for displaying information or wherein a state of charge indicator is provided for indicating a current state of charge of the electric vehicle.

12. The motor-driven covering device according to claim 1, wherein a de-icing element is provided for de-icing an at least partially frozen cover flap.

13. The motor-driven covering device according to claim 1, wherein an emergency unlocking device is provided for emergency unlocking of the motor-operated covering device.

14. The motor-driven covering device according to claim 1, wherein the guide element comprises at least one positioning device for performing a movement of the cover flap towards the body or away from the body.

15. The motor-driven covering device according to claim 12, wherein the at least one positioning device is configured and positioned within the motor-driven covering device such that the cover flap is moved towards the body or away from the body by an interaction of the at least one positioning device with the body of the electric vehicle during an opening movement and a closing movement of the cover flap.

16. An electric vehicle comprising a charging connection for insertion of a charging plug and a motor-driven charging plug and a motor-driven covering device according to claim 1.

17. The electric vehicle according to claim 16, wherein the charging connection is arranged in the side of the electric vehicle, or wherein the charging connection is arranged in the front region of the electric vehicle.

18. A method for covering and exposing a charging connection arranged on the body of an electric vehicle with respect to a vehicle exterior, using a motor-driven covering device according to claim 1, comprising: controlling a motor operatively connected to a cover flap for driving an opening movement and a closing movement of the cover flap, transmitting a motor power of the motor via a power transmission device for carrying out the opening movement and the closing movement of the cover flap, guiding the cover flap along a movement path during the opening movement and the closing movement of the cover flap by means of guide element, wherein the cover flap is moved along the body of the electric vehicle in a motor-driven manner during the opening and closing movement, the cover flap being at least partially covered by the body with respect to the vehicle exterior in an open state of the covering device; wherein the power transmission device is selected from a group consisting of a toothed rack drive, a toggle drive and a four-bar drive.

19. The method according to claim 18, wherein, before a motor which is operatively connected to a cover flap is controlled, at least an opening or closing command for at least opening or closing the cover flap is detected by means of a sensor or wherein during an opening and closing movement of the cover flap, a movement of the cover flap in the direction of the bodywork or away from the bodywork is carried out by means of a positioning element.

Description

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

(1) Further advantages, features and details of the invention will be apparent from the following description, in which embodiments of the invention are described in detail with reference to the drawings. The features mentioned in the claims and in the description may be essential to the invention individually or in any combination.

Drawings

(2) FIG. 1A schematic representation of a part of an electric vehicle according to the invention, comprising a motor-driven covering device according to the invention,

(3) FIG. 2A schematic representation of a motor-driven covering device according to the invention in accordance with a first embodiment in a closed (II) and an open state (I),

(4) FIG. 3A schematic representation of the motor-driven covering device according to the invention as shown in FIG. 2 in an exploded view,

(5) FIG. 4A schematic representation of a power transmission means/device of a motor-driven covering device according to the invention in accordance with the first embodiment,

(6) FIG. 5A further schematic representation of a power transmission means/device of a motor-driven covering device according to the invention in accordance with the first embodiment in an enlarged view,

(7) FIG. 6A schematic representation of a motor-driven covering device according to the invention in accordance with a second embodiment example in an opened state,

(8) FIG. 7A schematic representation of the motor-driven covering device according to the invention as shown in FIG. 6 in an exploded view,

(9) FIG. 8A schematic representation of the motor-driven covering device according to the invention in accordance with the second embodiment example in an enlarged view,

(10) FIG. 9A schematic representation of a motor-driven covering device according to the invention in accordance with a third embodiment in a closed state,

(11) FIG. 10A schematic representation of a sectional view of the motor-driven covering device according to the invention as shown in FIG. 9 along sectional line 111-111,

(12) FIG. 11A schematic representation of a motor-operated covering device according to the invention in a fourth embodiment in a closed (II) and an open state (I),

(13) FIG. 12A schematic representation of the individual steps/stages of a method according 20 to the invention for covering and exposing a charging connection arranged on the body of an electric vehicle.

DESCRIPTION OF SPECIFIC EMBODIMENTS OF THE INVENTION

(14) FIG. 1 shows a schematic representation of a part of an electric vehicle (6) according to the invention, comprising a motor-driven covering device (2) according to the invention in a closed 25 (II) and an open state (I). As can be seen from FIG. 1, in a closed state (II) the cover flap (10) covers the charging connection (8) with respect to a vehicle exterior (16), whereas in an open state (I) the cover flap (10) is at least partially covered by the body (4) of the electric vehicle (6) with respect to the vehicle exterior (16).

(15) FIG. 2 shows a schematic representation of a motor-driven covering device (2) according to the 30 invention in accordance with a first embodiment example in a closed (II) and an open state (I).

(16) As can be seen from FIG. 2, the cover flap (10) according to the first embodiment example is moved from a closed position (II) to an open position (I), in which the charging connection (8) is released, by means of a toothed rack drive comprising a toothed rack (20) and a gear (22). During this movement, the cover flap (10) is guided over the guide rods (18a). As can additionally be seen, an electrically operated de-icing means/element (50a) in the form of a fan, a sensor (44) as well as a state of charge indicator (48) for indicating a current state of charge are arranged in the housing (42) of the covering device (2).

(17) FIG. 3 shows a schematic representation of the motor-driven covering device (2) according to the invention as shown in FIG. 2 in an exploded view.

(18) The exploded view shows in particular the structure arranged in the present case on a body (4) of an electric vehicle (6), comprising a seal (39) for preventing the entry of water, a corresponding retaining frame (43) and a power transmission means/device (14) which, according to this embodiment example, has three guide rods (18a) arranged parallel to one another for guiding the cover flap (10) along a movement path, a toothed rack (20) and a corresponding gear (22).

(19) Furthermore, an electrically operated de-icing means/element (50a) for de-icing an at least partially frozen cover flap (10), a sensor (44) preferably in the form of a movement sensor, a state of charge indicator (48) and a motor (12) for driving an opening movement and a closing movement of the cover flap (10) are arranged. Furthermore, the motor-driven covering device (2) comprises a charging connection (8) and a closing housing (42).

(20) FIG. 4 shows a schematic representation of a power transmission means/device (14) of a motor-driven covering device (2) according to the first embodiment example.

(21) As can be seen according to FIG. 4, the power transmission means/device (14) according to the first embodiment example is formed in the form of a toothed rack drive and comprises a toothed rack (20) and a gear (22) for transmitting a motor power of a motor (12) for executing the opening movement and the closing movement of the cover flap (10). For guiding the cover flap (10), according to the first embodiment example, guide means/element (18) formed in the form of guide rods (18a) are further provided for guiding the cover flap (10) along a movement path, wherein in the present case three guide rods (18a) are provided, which are arranged parallel to one another and to the toothed rack (20). A positioning means/element (28) for executing a movement of the cover flap (10) in the direction of the body (4) or away from the body (4) is also arranged at the end of the guide rod (18a) positioned close to the toothed rack (20).

(22) FIG. 5 shows a further schematic representation of a power transmission means/device (14) of a motor-driven covering device (2) according to the first embodiment in an enlarged view.

(23) As can be seen in this enlarged view, the positioning means/element (28) according to the first embodiment example is configured and positioned within the motor-driven covering device (2) in such a way that the cover flap (10) is moved towards or away from the body (4) of the electric vehicle (6) by an interaction of the positioning means/element (28) with the body (4) during an opening movement and a closing movement of the cover flap (10), wherein the cooperation of the positioning means/element (28) with the body preferably comprises pushing the positioning means/element (28) away from the body (4) or moving the positioning means/element (28) towards the body (4). In addition, it can be seen from the enlarged view shown in FIG. 5 that the gear (22) has an output (24) for receiving the motor (12).

(24) FIG. 6 shows a schematic representation of a motor-driven covering device (2) according to the invention in accordance with a second embodiment example in an open state (II).

(25) As can be seen in FIG. 6, the motor-driven covering device (2) according to the second embodiment example is arranged in a front area, in particular behind the radiator grille of an electric vehicle (6), and is adjustable along a vehicle height. In contrast to a toothed rack drive according to the first embodiment example, the power transmission means/device (14) according to the second embodiment example is formed in the form of a toggle lever drive which transmits the motor power of the motor (12) to perform the opening movement and the closing movement of the cover flap (10). The cover flap (10) is further attached to a support frame (34), which is guided within guide grooves (18c) of guide rails (18b).

(26) FIG. 7 shows a schematic representation of the motor-driven covering device (2) according to the invention as shown in FIG. 6 in an exploded view.

(27) According to this exploded view, it can be seen that the power transmission means/device (14) formed according to the second embodiment example in the form of a toggle drive has two interconnected lever elements (30, 32) for transmitting a motor force of the motor (12) for executing the opening movement and the closing movement of the cover flap (10), wherein the first lever element (30) is directly connected to the motor (12) and the second lever element (32) is directly connected to the cover flap (10). During the opening and closing movement, the cover flap (10) attached to the support frame (34) is further guided in its movement along a path of movement via the guide grooves (18c) arranged in the guide rails (18b) for receiving the guide ribs (18d) of the support frame (34).

(28) FIG. 8 shows a schematic representation of the motor-operated covering device (2) according to the invention in accordance with the second embodiment example in an enlarged view.

(29) As can be seen according to FIG. 8, the guide groove (18c) for guiding the cover flap (10) has a positioning means/element (28), in the present case arranged at the end, for carrying out a movement of the cover flap (10) in the direction of the body (4) or away from the body (4), the positioning means/element (28) is in the present case formed in the form of an angled guide (28a), in order to move the cover flap (10) in the direction of the body (4) or away from the body (4) during an opening movement and a closing movement of the cover flap (10).

(30) FIG. 9 shows a schematic representation of a motor-driven covering device (2) according to the invention in accordance with a third embodiment in a closed state (I).

(31) As can be seen according to FIG. 9, the motor-driven covering device (2) according to the third embodiment example also comprises a toothed rack drive consisting of a toothed rack (20) and gear (22) for transmitting a motor power of the motor (12) for performing the opening movement and the closing movement of the cover flap (10). Furthermore, according to the third embodiment example, the covering device (2) also comprises three guide rods (18a) arranged parallel to each other, but arranged perpendicular to the toothed rack (20) rather than parallel to the toothed rack (20). Furthermore, the covering device (2) according to the third embodiment example also comprises two guide rails (18b) with guide grooves (18c) and a positioning means/element (28) arranged inside the guide groove (18c) in the form of an angled guide (28a). Finally, the covering device (2) according to the third embodiment example also comprises an additional control element (36) for supporting a movement of the cover flap (10) in the direction of the body (4) or away from the body (4), which has two recesses for the insertion of corresponding guide rods (18a) and is attached to the toothed rack (20).

(32) FIG. 10 shows a schematic representation of a sectional view of a motor-driven covering device (2) according to the invention as shown in FIG. 9 along sectional line 111-111.

(33) As can be seen once again more clearly according to FIG. 10, the additional control element (36) is provided for assisting a movement of the cover flap (10) in the direction of the body (4) or away from the body (4) and has 2 recesses for the insertion of corresponding guide rods (18a), which are guided in a guide groove (18c) and cooperate accordingly with the additional control element (36) to effect a movement of the cover flap (10) in the direction of the body (4) or away from the body (4).

(34) FIG. 11 shows a schematic representation of a motor-driven covering device (2) according to the invention in accordance with a fourth embodiment example in a closed (II) and an open state (I).

(35) As can be seen according to FIG. 11, the power transmission means/device (14) according to the fourth embodiment example is formed in the form of a four-bar linkage drive, wherein the four-bar linkage drive in the present case has two joint elements (38, 40) for transmitting a motor force of the motor (12) for executing the opening movement and the closing movement of the cover flap (10), wherein the first and second linkage elements (38, 40) are connected to the cover flap (10) and the first linkage element (38) is additionally engaged with the motor (12).

(36) FIG. 12 shows a schematic representation of the individual steps/stages of the method according to the invention for covering and exposing a charging connection (8) arranged on the body (4) of an electric vehicle (6). Here, the method according to the invention first comprises an optional step/stage of detecting (90) an opening and/or closing command for opening and/or closing the cover flap (10) by means of a sensor (44), the step/stage of controlling (100) a motor (12) connected to the cover flap (10) for driving an opening movement and a closing movement of the cover flap (10), the step/stage of transmitting (110) a motor power of the motor (12) by means of a power transmission means/device (14) to perform the opening movement and the closing movement of the cover flap (10), and the step/stage of guiding (120) the cover flap (10) along a movement path during the opening movement and the closing movement of the cover flap (10) by means of guide means/element (18), wherein the cover flap (10) is moved along the body (4) of the electric vehicle (6) in a motor-driven manner during the opening and closing movement, wherein the cover flap (10) is at least partially covered by the body (4) with respect to the vehicle exterior (16) in an opened state (II) of the covering device (2).

(37) By means of the motor-driven covering device according to the invention and by means of the method according to the invention, it is in particular possible to provide a covering device for covering and exposing a charging connection arranged on the body of an electric vehicle, which has a minimum space requirement during a charging process and at the same time offers safe charging and a high charging comfort.

LIST OF REFERENCE SKINS

(38) 2 Motor-driven covering device 4 Car body 6 Electric vehicle 8 Charging connection 10 Cover flap 12 Motor 14 Power transmission 16 Vehicle exterior 18 Guide means/element 18a Guide rods 18b Guide rails 18c Guide grooves 18d Guide ribs 20 toothed rack 22 Output drive 28 Positioning means/element 28a angled guide 30 first lever element 32 second lifting element 34 support frame 36 additional control element 38 first joint element 39 seal 40 second joint element 41 Air gap 42 Housing 43 Retaining frame 44 Sensor 46 Illumination device 48 State of charge indicator 50 De-icing means/element 50a Electrically operated de-icing means/element 50b Deformation element 52 Heating means/device 54 Ventilation means/device 56 Emergency unlocking means/device 90 Detecting of an opening and/or closing command 100 Controlling of a motor operatively connected to a cover flap 110 Transmitting a motor force 120 Guiding the cover flap along a movement path I Open state II Closed state