Charging small door assembly and electric vehicle

Abstract

The invention belongs to the technical field of automobile accessories, and provides a charging small door assembly and an electric vehicle, and the charging small door assembly comprises a base which is hollow and is provided with an opening; the door cover is arranged at the opening of the base, is provided with a closing station and an opening station, and is in sliding connection with the base, so that the door cover can only do reciprocating motion between the closing station and the opening station in the preset direction; and the driving assembly is arranged on the base and is in transmission connection with the door cover, the driving assembly drives the door cover to a closing station to close the charging port in a working state, and the driving assembly drives the door cover to an opening station to open the charging port in a non-working state. According to the charging small door assembly and the electric vehicle, the structure is simple, design is reasonable, the door cover can be opened or closed by controlling the driving assembly, the door cover cannot be turned over towards the outside of the vehicle body, and damage to the door cover due to the fact that the door cover is hooked by foreign matter is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of automobile accessories, and in particular to a charging door assembly and an electric vehicle. Background Art

[0002] The charging door assembly is used to protect the charging head on the electric vehicle from dirt, rain, snow, sunlight, etc., and it includes a base and a door cover. The traditional charging door assembly usually adopts the method of unlocking inside the car + mechanically pressing to open outside the car, and after charging is completed, the door cover is manually closed. During use, once the vehicle user gets on the vehicle, he finds that the door cover is not closed, and the vehicle user must get off the vehicle to close it, which is extremely inconvenient to operate. In addition, the door cover in the prior art is mostly folded outward from the vehicle, which is very easy to be hooked by foreign objects (for example: clothes of pedestrians outside the vehicle, branches on the roadside, etc.), thereby causing irreversible damage to the door cover. Summary of the invention

[0003] In view of the defects in the prior art, the purpose of the present invention is to provide a charging door assembly and an electric vehicle to solve or alleviate the above-mentioned technical problems existing in the prior art.

[0004] In order to achieve the above object, on the one hand, the present invention provides a charging door assembly, comprising:

[0005] a base which is hollow and has an opening;

[0006] a door cover, which is arranged at the opening of the base and has a closing position and an opening position, and is slidably connected to the base so that the door cover can only reciprocate between the closing position and the opening position along a preset direction; and

[0007] A driving assembly is arranged on the base and is transmission-connected to the door cover. In a working state, the driving assembly drives the door cover to the closing position to close the charging port. In a non-working state, the driving assembly drives the door cover to the opening position to open the charging port.

[0008] Furthermore, the door cover comprises:

[0009] a sliding seat slidably connected to the base; and

[0010] The cover body is arranged on the sliding seat and is fixedly connected with the sliding seat.

[0011] Furthermore, the door cover also includes a sealing element, which is sleeved on the side wall of the sliding seat, and when the door cover is in the closing position, the sealing element contacts the inner side of the vehicle body.

[0012] Furthermore, the driving assembly comprises:

[0013] a driving device, which is disposed on the base and fixedly connected to the base; and

[0014] A connecting rod mechanism, a power input end of which is transmission-connected to the power output shaft of the driving device, and a power output end of which is transmission-connected to the door cover.

[0015] Furthermore, the connecting rod mechanism comprises:

[0016] A first connecting rod, a first end of which is hinged to the door cover; and

[0017] The second connecting rod has a first end hinged to the second end of the first connecting rod, a second end rotatably connected to the base, and a second end drivingly connected to the power output shaft of the driving device.

[0018] Furthermore, two first sliding holes are provided on each side of the base, and the first sliding parts respectively matched with the two first sliding holes are correspondingly provided on each side of the door cover, and the two first sliding parts located on the same side are staggered.

[0019] Furthermore, the connecting rod assembly also includes a third connecting rod, which is arranged on a side of the first sliding hole away from the sliding seat, and the third connecting rod is slidably connected to the base so that the third connecting rod can only move along a preset direction, and the two ends of the third connecting rod are respectively connected to the corresponding two first sliding parts.

[0020] Furthermore, the first sliding hole is L-shaped, and the first sliding hole includes a first guide portion and a second guide portion, wherein a first end of the first guide portion is connected to a first end of the second guide portion, and the second end extends toward a direction close to the opening of the base.

[0021] Furthermore, a second sliding hole adapted to the first sliding part is provided at a position corresponding to the third connecting rod and the first sliding part, and an angle α between a length direction of the second sliding hole and a length direction of the first sliding hole is, wherein α is an acute angle, and the first sliding part passes through the first sliding hole and then is inserted into the second sliding hole.

[0022] On the other hand, the present invention further provides an electric vehicle, comprising any one of the charging door assemblies described above.

[0023] Beneficial effects of the present invention:

[0024] The charging door assembly and electric vehicle provided by the present invention drive the door cover to move from the closing position to the opening position or from the opening position to the closing position by setting a driving assembly, so that the door cover can be opened or closed by simply pressing a switch. The operation is convenient, and the door cover can only reciprocate between the closing position and the opening position in a preset direction and will not fold outward from the vehicle, thereby avoiding the risk of the door body being hooked by foreign objects. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0026] Figure 1 A three-dimensional view of a charging door assembly provided by an embodiment of the present invention;

[0027] Figure 2 for Figure 1 An enlarged view of section A is shown;

[0028] Figure 3 for Figure 1 A three-dimensional view of the charging door assembly from another direction;

[0029] Figure 4 for Figure 3 A three-dimensional view of the internal structure of part B shown;

[0030] Figure 5 for Figure 1 A perspective view of the base of the charging door assembly shown;

[0031] Figure 6 for Figure 1 A three-dimensional view of the door cover of the charging door assembly shown;

[0032] Figure 7 for Figure 1 A combined three-dimensional view of the base and the third connecting rod of the charging door assembly shown;

[0033] Figure 8 for Figure 7 An enlarged view of section C is shown;

[0034] Fig. 9 for Figure 1 An exploded perspective view of the base and the third connecting rod of the charging door assembly shown;

[0035] Fig.10 for Fig. 9 An enlarged view of section D is shown;

[0036] Fig.11 for Figure 1 A combined structural view of the first sliding hole, the second sliding hole and the first sliding part of the charging door assembly shown;

[0037] Fig.12 for Figure 1 A three-dimensional view of the charging door assembly shown in another direction.

[0038] Reference numerals:

[0039] 100, base; 110, first sliding hole; 111, first guide part; 112, second guide part; 120, slide groove; 130, water flow hole; 210, sliding seat; 211, first sliding part; 220, cover body; 230, sealing element; 310, driving device; 311, second gear; 320, first connecting rod; 330, second connecting rod; 340, third connecting rod; 341, second sliding hole; 342, second sliding part; 350, transmission shaft; 351, first gear; 400, touch switch; 500, indicator light. DETAILED DESCRIPTION

[0040] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0041] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0042] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0043] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0044] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0046] like Figure 1-12 As shown, the present invention provides a charging door assembly, including a base 100, a door cover and a driving assembly.

[0047] The base 100 is hollow and has an opening. The base 100 is fixedly arranged on the vehicle body.

[0048] The door cover is arranged at the opening of the base 100, and has a closing position and an opening position. When the door cover is in the closing position, the door cover closes the charging port and is flush with the outer side of the vehicle body, and when the door cover is in the opening position, the door cover opens the charging port so that the charging plug can be inserted into the charging port, thereby charging the vehicle.

[0049] The door cover is slidably connected to the base 100 so that the door cover can only reciprocate between the closing position and the opening position along a preset direction. When the door cover moves from the closing position to the opening position, the door cover can only move toward the inside of the vehicle body along the preset direction instead of folding outward from the vehicle body, thereby preventing the door cover from being hooked by foreign objects.

[0050] Specifically, first sliding holes 110 are provided on the side walls on opposite sides of the base 100, and first sliding parts 211 are correspondingly provided on the side walls on opposite sides of the door cover, and the first sliding parts 211 are slidably inserted in the first sliding holes 110. In the working state, the movement of the sliding seat 210 is limited and guided by the cooperation between the first sliding parts 211 and the first sliding holes 110, so as to achieve the purpose of making the first sliding parts 211 (i.e., the door cover) move only along the length direction of the first sliding holes 110.

[0051] The driving component is arranged on the base 100, and the driving component is connected to the door cover in a transmission manner. In the working state, the driving component drives the door cover to the closing position to close the charging port. In the non-working state, the driving component drives the door cover to the opening position to open the charging port.

[0052] The charging door assembly provided by the present invention drives the door cover to move from the closing position to the opening position or from the opening position to the closing position by setting a driving assembly, so that the door cover can be opened or closed by just pressing a switch, which is easy to operate.

[0053] like Figure 1 , 6 As shown, the door cover includes a sliding seat 210 and a cover body 220 .

[0054] The sliding seat 210 is slidably connected to the base 100. Specifically, first sliding holes 110 are provided on the side walls on opposite sides of the base 100, and first sliding parts 211 are correspondingly provided on the side walls on opposite sides of the sliding seat 210, and the first sliding parts 211 are slidably inserted in the first sliding holes 110. In the working state, the movement of the sliding seat 210 is limited and guided by the cooperation between the first sliding parts 211 and the first sliding holes 110.

[0055] Preferably, two first sliding holes 110 are provided on each side of the base 100, and two first sliding parts 211 are correspondingly provided on each side of the sliding seat 210 (i.e., the door cover), and the two first sliding parts 211 located on the same side of the sliding seat 210 are staggered, which can not only improve the reliability of the connection between the sliding seat 210 and the base 100, but also improve the stability of the restriction on the movement of the sliding seat 210.

[0056] The cover 220 is disposed on the sliding seat 210, specifically, the cover 220 is disposed on the outside of the sliding seat 210. The cover 220 is fixedly connected to the sliding seat 210, for example, by threaded connection, hot melt connection, adhesive connection, snap connection, etc.

[0057] Preferably, a sealing element 230 is sleeved on the sliding seat 210, and the sealing element 230 is located on the side of the cover body 220 facing the sliding seat 210, and when the door cover is in the closed position, the sealing element 230 contacts the inner side of the vehicle body, thereby achieving the purpose of maintaining the seal, thereby preventing rainwater from entering through the gap between the door cover and the vehicle body and damaging the charging connector, and at the same time, through the friction between the sealing element and the vehicle body, the purpose of reducing the abnormal noise caused by the vibration of the door cover is achieved. Optionally, the sealing element 230 is a sealing soft rubber.

[0058] like Figure 4 As shown, the driving assembly includes a driving device 310 and a connecting rod mechanism.

[0059] The driving device 310 is disposed on the base 100, and the driving device 310 is fixedly connected to the base 100, for example, by threaded connection. Optionally, the driving device 310 is a driving motor, an actuator, etc. In this embodiment, the driving device 310 is an actuator.

[0060] The power input end of the connecting rod mechanism is connected to the power output shaft of the driving device 310, and the power output end is connected to the door cover. In the working state, the driving device 310 applies a force to the sliding seat 210 through the connecting rod mechanism to drive the sliding seat 210 to move, thereby achieving the purpose of opening or closing the charging port.

[0061] The driving assembly provided in this embodiment has a simple structure and a reasonable design.

[0062] like Figure 1 , 2 As shown in , 3 and 4 , the connecting rod mechanism includes a first connecting rod 320 and a second connecting rod 330 .

[0063] The first end of the first connecting rod 320 is hinged to the door cover. Figure 1 , 2 3 , the first end of the first connecting rod 320 is hinged to the sliding seat 210 . The first end of the second connecting rod 330 is hinged to the second end of the first connecting rod 320 , the second end is rotatably connected to the base 100 , and the second end of the second connecting rod 330 is drivingly connected to the power output shaft of the driving device 310 .

[0064] Specifically, the base 100 is provided with a transmission shaft 350, the transmission shaft 350 is rotatably connected to the base 100, the second end of the second connecting rod 330 is fixedly sleeved on the transmission shaft 350, and the transmission shaft 350 is transmission-connected to the power output shaft of the driving device 310. Specifically, the transmission shaft 350 is provided with a first gear 351, and the power output shaft of the driving device 310 is provided with a second gear 311, and the first gear 351 and the second gear 311 are meshed.

[0065] like Figure 4 As shown, in this embodiment, the first gear 351 and the second gear 311 are both bevel gears, so as to achieve the purpose of saving space, reducing speed and increasing torque, and changing the transmission direction of motion.

[0066] In the working state, the driving device 310 drives the second connecting rod 330 to rotate, thereby applying a force to the door cover through the first connecting rod 320 to drive the door cover to move from the closing position to the opening position or from the opening position to the closing position.

[0067] like Figure 1 , 2As shown in Figures 3, 7, 8, 9 and 10, the connecting rod assembly also includes a third connecting rod 340, which is arranged on a side of the first sliding hole 110 away from the sliding seat 210, and the third connecting rod 340 is slidably connected to the base 100 so that the third connecting rod 340 can only move along a preset direction.

[0068] like Figure 7 , 8 As shown in FIGS. 9 and 10 , specifically, the base 100 is provided with a slide groove 120 on two opposite sides, and the third connecting rod 340 is correspondingly provided with a second sliding portion 342 that cooperates with the slide groove 120 , and the second sliding portion 342 is slidably inserted in the slide groove 120 .

[0069] Preferably, two slide grooves 120 are provided on each side of the base 100, and two second sliding parts 342 are correspondingly provided on the third connecting rod 340. The two slide grooves 120 cooperate with the two second sliding parts 342 to improve the stability and reliability of the movement of the third connecting rod 340.

[0070] Two ends of the third connecting rod 340 are respectively connected to two corresponding first sliding parts 211 .

[0071] In this embodiment, the side wall of the base 100 is clamped in the middle by the third connecting rod 340 and the sliding seat 210, so as to avoid the first sliding portion 211 from moving out of the first sliding hole 110 due to deformation of the side wall of the base 100, thereby achieving the purpose of improving the reliability of the connection between the sliding seat 210 and the base 100.

[0072] like Figure 3 As shown, two connecting rod mechanisms are provided, and the two connecting rod mechanisms are respectively arranged on opposite sides of the base 100, so as to improve the stability of the driving assembly driving the door cover to move.

[0073] like Figure 5 As shown, the first slide hole 110 is L-shaped, and the first slide hole 110 includes a first guide portion 111 and a second guide portion 112. The first end of the first guide portion 111 is connected and communicated with the first end of the second guide portion 112, and the second end extends toward the direction close to the opening of the base 100.

[0074] In the first sliding hole 110 of this structure, when the door cover moves from the closed position to the open position, the first sliding portion 211 first moves toward the first end along the second end of the first guide portion 111, so that the sealing element 230 is separated from the side wall of the vehicle body, so as to prevent the sealing element 230 from being damaged during the movement of the door cover. At the same time, the cover body 220 moves to the inner side of the vehicle body, so that the vehicle body does not hinder the movement of the cover body 220; the first sliding portion 211 then moves toward the second end along the first end of the second guide portion 112, so that the door cover moves to the opening position.

[0075] When the door cover moves from the open position to the closed position, the first sliding portion 211 first moves along the second end of the second guide portion 112 toward the first end; and then moves along the first end of the first guide portion 111 toward the second end, so that the door cover moves toward the opening close to the base 100, and then the sealing element 230 contacts the inner side of the vehicle body to achieve the purpose of sealing. At the same time, the cover body 220 can also be flush with the outer side of the vehicle body to ensure aesthetics.

[0076] like Figure 2 As shown, a second sliding hole 341 adapted to the first sliding part 211 is provided at a position corresponding to the third connecting rod 340 and the first sliding part 211, and the angle between the length direction of the second sliding hole 341 and the length direction of the first sliding hole 110 is α, wherein α is an acute angle, and the first sliding part 211 passes through the first sliding hole and is inserted into the second sliding hole 341. In the working state, through the cooperation of the second sliding hole 341, the first sliding hole 110 and the first sliding part 211, the driving component can apply a force to the first sliding part 211 to drive the first sliding part 211 to move along the length direction of the first sliding hole 110.

[0077] Specifically, when in use, during the movement of the door cover from the closing position to the opening position, the driving assembly applies a force to the first sliding portion 211 through the first inner wall of the second sliding hole 341. Under the action of the first guide portion 111, the first sliding portion 211 can only move along the length direction of the first guide portion 111. Therefore, the first sliding portion 211 moves toward the first end of the first guide portion 111, so that the door cover moves toward the inner side of the base 100, and then the sealing element 230 is separated from the vehicle body, so as to achieve the purpose of preventing the sealing element 230 from being damaged during the movement of the door cover. At the same time, the cover body 220 moves to the inner side of the vehicle body, so that the vehicle body does not hinder the movement of the cover body 220. After the first sliding portion 211 moves to the connection between the first guide portion 111 and the second guide portion 112, under the action of the second guide portion 112, the first sliding portion 211 can only move along the length direction of the second guide portion 112, so that the door cover moves along the length direction of the second guide portion 112, and then the door cover is driven to the opening position.

[0078] When the door cover moves from the opening position to the closing position, the driving component applies a force to the first sliding portion 211 through the second inner wall (opposite to the first inner wall) of the first sliding hole 110. Under the action of the second guide portion 112, the first sliding portion 211 can only move along the length direction of the second guide portion 112; when the first sliding portion 211 moves to the connection between the second guide portion 112 and the first guide portion 111, under the action of the first guide portion 111, the first sliding portion 211 can only move along the length direction of the first guide portion 111. Therefore, the first sliding portion 211 will move along the length direction of the first guide portion 111 towards the opening of the base 100, thereby causing the door cover to move towards the opening of the base 100, thereby causing the sealing element 230 to contact the inner side of the vehicle body to achieve the purpose of sealing. At the same time, the cover body 220 can also be flush with the outer side of the vehicle body to ensure aesthetics.

[0079] The connecting rod mechanism of this structure can not only enable the first sliding portion 211 to change direction between the first guide portion 111 and the second guide portion 112 , but also has a simple structure and a reasonable design.

[0080] like Figure 1 , 12 As shown, a touch switch 400 is provided on the base 100, and the touch switch 400 and the driving device are electrically connected to the controller. In the working state, the touch switch 400 is touched once, so that the driving device 310 is controlled by the controller to start, so as to drive the door cover to move from the closing position to the opening position, and the touch switch 400 is touched again, so that the driving device 310 is controlled by the controller to start, so as to drive the door cover to move from the opening position to the closing position, so as to achieve the purpose of facilitating the opening or closing of the door cover.

[0081] like Fig.12 As shown, the base 100 is provided with an indicator light 500. In the working state, when the battery circuit is less than 20%, the indicator light 500 emits yellow light, when charging, the indicator light 500 emits red light, and when fully charged, the indicator light 500 emits green light. Optionally, the indicator light 500 is an RG tricolor light.

[0082] like Fig. 9 As shown, a water flow hole 130 is provided on the bottom side wall of the base 100 . In the working state, when water enters the base 100 , the water flows out through the water flow hole 130 , thereby preventing water from accumulating in the base 100 .

[0083] The present invention also provides an electric vehicle, which includes the charging door assembly described in any of the above embodiments.

[0084] In the description of the present invention, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0085] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A charging door assembly, characterized in that: include: A base (100) which is hollow and has an opening; A door cover, which is arranged at the opening of the base (100), has a closing position and an opening position, and is slidably connected to the base (100) so that the door cover can only reciprocate between the closing position and the opening position along a preset direction; as well as A driving assembly is arranged on the base (100) and is in driving connection with the door cover. In a working state, the driving assembly drives the door cover to the closing position to close the charging port. In a non-working state, the driving assembly drives the door cover to the opening position to open the charging port.

2. The charging door assembly according to claim 1, characterized in that: The door cover comprises: a sliding seat (210) slidably connected to the base (100); and A cover body (220) is arranged on the sliding seat (210) and is fixedly connected to the sliding seat (210).

3. The charging door assembly according to claim 2, characterized in that: The door cover also includes a sealing element (230), which is sleeved on the side wall of the sliding seat (210), and when the door cover is in the closing position, the sealing element (230) contacts the inner side of the vehicle body.

4. The charging door assembly according to any one of claims 1 to 3, wherein the driving assembly comprises: A driving device (310), which is disposed on the base (100) and is fixedly connected to the base (100); as well as A connecting rod mechanism, whose power input end is transmission-connected to the power output shaft of the driving device (310), and whose power output end is transmission-connected to the door cover.

5. The charging door assembly according to claim 4, characterized in that: The connecting rod mechanism comprises: A first connecting rod (320), a first end of which is hinged to the door cover; and A second connecting rod (330) has a first end hinged to the second end of the first connecting rod (320), a second end rotationally connected to the base (100), and a second end drivingly connected to the power output shaft of the driving device (310).

6. The charging door assembly according to claim 5, characterized in that: Two first sliding holes (110) are provided on each side of the base (100), and a first sliding portion (211) respectively matched with the two first sliding holes (110) is correspondingly provided on each side of the door cover, and the two first sliding portions (211) located on the same side are staggered.

7. The charging door assembly according to claim 6, characterized in that: The connecting rod assembly also includes a third connecting rod (340), which is arranged on a side of the first sliding hole (110) away from the sliding seat (210), and the third connecting rod (340) is slidably connected to the base (100) so that the third connecting rod (340) can only move along a preset direction, and the two ends of the third connecting rod (340) are respectively connected to the corresponding two first sliding parts (211).

8. The charging door assembly according to claim 7, characterized in that: The first sliding hole (110) is L-shaped, and comprises a first guide portion (111) and a second guide portion (112); a first end of the first guide portion (111) is connected to a first end of the second guide portion (112), and the second end extends in a direction close to an opening of the base (100).

9. The charging door assembly according to claim 8, characterized in that: A second sliding hole (341) adapted to the first sliding part (211) is provided at a position corresponding to the third connecting rod (340) and the first sliding part (211); an angle α is included between a length direction of the second sliding hole (341) and a length direction of the first sliding hole (110), wherein α is an acute angle; and the first sliding part (211) is inserted into the second sliding hole (341) after passing through the first sliding hole.

10. An electric vehicle, characterized in that: It comprises the charging door assembly as described in any one of claims 1-9.

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