Wireless charging device and electric vehicle bracket

Abstract

The invention discloses a wireless charging device and an electric vehicle bracket, and relates to the technical field of electric vehicle wireless charging. The wireless charging device comprises a wireless charging disc, a lifting mechanism and a linkage mechanism. A charging parking space for parking the electric vehicle is correspondingly arranged above the wireless charging disc, and the wireless charging disc is used for wirelessly charging the electric vehicle; the lifting mechanism is connected with the wireless charging disc and used for driving the wireless charging disc to ascend to a rising state relatively close to the electric vehicle or descend to a lowering state relatively away from the electric vehicle. The linkage mechanism is connected with the lifting mechanism and is used for driving the lifting mechanism to ascend or descend under the driving of the electric vehicle; when the electric vehicle enters the charging parking space, the wireless charging disc is in a rising state; and when the electric vehicle exits from the charging parking space, the wireless charging disc is in a lowering state. According to the invention, miniaturization of the wireless charging device can be realized.

Description

Technical Field

[0001] The present application relates to the technical field of wireless charging of electric vehicles, and more specifically to a wireless charging device and an electric vehicle bracket. Background Art

[0002] The widespread adoption of wireless charging devices has greatly improved the convenience of charging electric vehicles. These devices include a wireless charging tray, a lifting mechanism, a proximity sensor, and a drive unit. Above the wireless charging tray is a corresponding parking space for electric vehicles, allowing them to be wirelessly charged. The lifting mechanism is used to raise the wireless charging tray to a raised position, relatively close to the vehicle, or lower it to a lowered position, relatively far from the vehicle.

[0003] The wireless charging tray in the raised position is closer to the electric vehicle than in the lowered position. The driving device is configured to drive the lifting mechanism to raise the wireless charging tray to the raised position when the proximity sensor detects that the electric vehicle has entered the charging and parking space, thereby facilitating charging of the electric vehicle by the wireless charging tray.

[0004] Obviously, existing wireless charging devices require a large space to configure the driving device, resulting in a relatively bulky wireless charging device. Therefore, how to achieve miniaturization of wireless charging devices remains a technical problem that those skilled in the art need to solve urgently. Summary of the Invention

[0005] In view of this, in order to solve the above technical problems, the present application provides a wireless charging device and an electric vehicle bracket.

[0006] In order to solve the above technical problems, one of the technical solutions of the present application is to provide a wireless charging device, which includes: A wireless charging tray, with a corresponding charging parking space for electric vehicles on the top, is used to wirelessly charge electric vehicles; A lifting mechanism connected to the wireless charging tray, used to drive the wireless charging tray to rise to a raised state relatively close to the electric vehicle or to lower to a lowered state relatively far away from the electric vehicle; and a linkage mechanism connected to the lifting mechanism, for driving the lifting mechanism to rise or fall under the drive of the electric vehicle; Among them, when the electric vehicle enters the charging parking space, the wireless charging plate is in a raised state; when the electric vehicle exits the charging parking space, the wireless charging plate is in a lowered state.

[0007] In order to solve the above technical problems, another technical solution adopted by the present application is to provide an electric vehicle bracket, which includes a support base and a wireless charging device, and the wireless charging device is the above-mentioned wireless charging device; Among them, the electric vehicle trigger includes an electric vehicle limit seat, which is movably arranged on the support base and is used to support and fix the electric vehicle; the elastic connecting member connects the support base and the electric vehicle limit seat respectively; the electric vehicle limit seat can move in the up and down directions or the front and back directions, so that the electric vehicle can be driven to the second state when the electric vehicle enters the charging parking space.

[0008] Beneficial Effects: Unlike the prior art, this application utilizes the coordination of the linkage mechanism, the lifting mechanism, and the charging and parking space, allowing the electric vehicle, the linkage mechanism, and the lifting mechanism to operate in sequence. This allows the wireless charging tray to adaptively rise to a raised position when the electric vehicle enters the charging and parking space, and to adaptively descend to a lowered position when the electric vehicle exits the charging and parking space. This eliminates the need for an additional drive device for the lifting mechanism, relying instead on the movement of the electric vehicle to provide power, and utilizes the linkage mechanism and the lifting mechanism to operate in sequence to achieve the ascent and descent of the wireless charging tray. This allows for miniaturization of the wireless charging device. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a structural diagram of the electric vehicle bracket of this application. Figure 1 The wireless charging tray is in the lowered state, the electric vehicle trigger is in the first state, and the second blocking member is engaged with the third blocking member; Figure 2 This is a structural diagram of the electric vehicle bracket of this application. Figure 2 The wireless charging tray is in a raised state, the electric vehicle trigger is in a second state, and the second blocking member is spaced apart from the third blocking member; Figure 3 This is a schematic structural diagram of the area where the support base is located in the electric vehicle bracket of the present application; Figure 4 yes Figure 3 A magnified schematic diagram of the middle area A; Figure 5 yes Figure 4 Enlarged schematic diagram of middle area C; Figure 6 yes Figure 3 Enlarged schematic diagram of middle area B; Figure 7 This is a schematic structural diagram of the area where the front wheel limit seat is located in the electric vehicle bracket of the present application; Figure 8 This is a schematic diagram of the disassembled structure of the elastic wheel assembly in the electric vehicle bracket of the present application; Figure 9 yes Figure 1 The structural diagram of the electric vehicle bracket, Figure 9 The rear wheel limit seat, wireless charging plate, lifting mechanism, driven gear, bar extension, first stopper and connecting spring are not shown, and Figure 9 Obtained by observing from the back to the front; Figure 10 yes Figure 9 Schematic diagram of the enlarged area D in the middle.

[0010] Description of reference numerals: Electric vehicle bracket 10; wireless charging device 100; charging and parking space 101; wireless charging tray 110; lifting mechanism 120; linkage mechanism 130; support base 200; movable groove 201 of the limit seat; movable wheel assembly 300; guide rail 400; second latch 500; first connecting portion 510; first latch 520; third latch 600; second connecting portion 610; second latch 620; limit seat spacer Q; Swing mechanism 120a; electric vehicle trigger 131; elastic connecting member 132; connecting spring 1321; transmission assembly 133; driven gear 1331; bar extension 1332; rack 1333; first blocking member 1334; Electric vehicle limiting seat 1311; rear wheel limiting seat 13111; rear wheel limiting groove 13112; front wheel limiting seat 13113; front wheel limiting groove 13114; front wheel clamp 13115; Elastic wheel assembly 300a; wheel assembly mounting seat 310a; lifting guide hole 311a; elastic support assembly 320a; guide rod 321a; support spring 322a; anti-slip limit block 323a; rolling wheel 340a mounting seat 330a; rolling wheel 340a. DETAILED DESCRIPTION

[0011] To enable those skilled in the art to better understand the technical solutions of this application, the present application is further described below in conjunction with the accompanying drawings and specific embodiments. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of this application.

[0012] In addition, all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0013] In this application, for the convenience of explanation Figure 2 As shown, the direction in the same direction as the direction toward which one end of the front wheel limiting seat 13113 close to the rear wheel limiting seat 13111 is defined as rear. The direction in the opposite direction to the direction toward which one end of the front wheel limiting seat 13113 close to the rear wheel limiting seat 13111 is defined as front.

[0014] See also Figures 1-6 As shown, the wireless charging device 100 of the present application includes a wireless charging tray 110 , a lifting mechanism 120 and a linkage mechanism 130 .

[0015] A charging parking space 101 for parking electric vehicles is correspondingly provided above the wireless charging tray 110 for wirelessly charging the electric vehicles. The lifting mechanism 120 is connected to the wireless charging tray 110 and is used to drive the wireless charging tray 110 to rise to a raised state relatively close to the electric vehicle or to descend to a lowered state relatively far away from the electric vehicle. The linkage mechanism 130 is connected to the lifting mechanism 120 and is used to drive the lifting mechanism 120 to rise or descend under the drive of the electric vehicle. When the electric vehicle enters the charging parking space 101, the wireless charging tray 110 is in a raised state. When the electric vehicle exits the charging parking space 101, the wireless charging tray 110 is in a lowered state.

[0016] Through the above-described method, the linkage mechanism 130 and the lifting mechanism 120 cooperate with each other in the charging parking space 101, so that the electric vehicle, the linkage mechanism 130, and the lifting mechanism 120 are driven in sequence, thereby enabling the wireless charging tray 110 to adaptively rise to a raised state when the electric vehicle enters the charging parking space 101, and adaptively lower to a lowered state when the electric vehicle exits the charging parking space 101. Since, in this application, there is no need to equip the lifting mechanism 120 with an additional drive device, but rather relies on the movement of the electric vehicle to provide power, and the linkage mechanism 130 and the lifting mechanism 120 are driven in sequence to achieve the raising and lowering of the wireless charging tray 110, thereby achieving miniaturization of the wireless charging device 100.

[0017] It should be noted that the charging parking space 101 is a local space corresponding to the upper portion of the wireless charging tray. The portion of the electric vehicle used to receive the power provided by the wireless charging tray can enter the charging parking space 101.

[0018] Alternatively, as Figures 1-6 As shown, the linkage mechanism 130 includes an electric vehicle actuator 131 , an elastic connector 132 and a transmission assembly 133 .

[0019] The electric vehicle actuator 131 is configured to contact the electric vehicle and has a first state and a second state. When the electric vehicle enters the charging and parking space 101, the electric vehicle actuator 131 is driven to the second state. An elastic connector 132 is connected to the electric vehicle actuator 131 and is configured to accumulate elastic potential energy when the electric vehicle actuator 131 is driven to the second state. This elastic potential energy is then released to return the electric vehicle actuator 131 to the first state when the electric vehicle exits the charging and parking space 101. A transmission assembly 133 is connected to the electric vehicle actuator 131 and the lifting mechanism 120, respectively, to drive the lifting mechanism 120 upward or downward.

[0020] In the second state, the electric vehicle trigger 131 raises the wireless charging tray 110 through the transmission assembly 133. In the first state, the electric vehicle trigger 131 lowers the wireless charging tray 110 through the transmission assembly 133.

[0021] In this manner, when the electric vehicle enters charging and parking space 101, it drives vehicle actuator 131 to the second state, causing wireless charging tray 110 to rise to the raised state. When the electric vehicle exits charging and parking space 101, elastic connector 132 releases its elastic potential energy, driving vehicle actuator 131 back to the first state, causing wireless charging tray 110 to return to the lowered state. In this manner, the movement of the electric vehicle provides power, which is then transmitted by vehicle actuator 131, elastic connector 132, and transmission assembly 133 to achieve the raising and lowering of wireless charging tray 110.

[0022] Alternatively, as Figures 1-6 As shown, the electric vehicle bracket 10 of the present application includes a support base 200 and a wireless charging device 100. The electric vehicle actuator 131 includes an electric vehicle stopper 1311, which is movably disposed on the support base 200 and is used to support and secure the electric vehicle. An elastic connector 132 connects the support base 200 and the electric vehicle stopper 1311, respectively. The electric vehicle stopper 1311 is movable in the vertical direction or the front-to-back direction, so that it is driven to the second state by the electric vehicle when the electric vehicle enters the charging parking space 101.

[0023] Through the above method, the electric vehicle limiting seat 1311 can be moved in the up and down direction or the front and back direction as needed, and then driven by the electric vehicle to drive the electric vehicle limiting seat 1311 to the second state.

[0024] Alternatively, as Figures 1-6 As shown, the electric vehicle limiting seat 1311 includes a rear wheel limiting seat 13111 and a front wheel limiting seat 13113 , and the rear wheel limiting seat 13111 and the front wheel limiting seat 13113 are arranged on the support base 200 .

[0025] The front wheel stopper 13113 is movable along the support base 200, either moving away from the rear wheel stopper 13111 in the fore-and-aft direction to move the electric vehicle stopper 1311 to the second position, or moving closer to the rear wheel stopper 13111 in the fore-and-aft direction to return the electric vehicle stopper 1311 to the first position. The elastic connector 132 connects the front wheel stopper 13113 and the support base 200, respectively. The transmission assembly 133 connects the front wheel stopper 13113 and the lifting mechanism 120, respectively.

[0026] When the front wheel limiting seat 13113 is driven by the front wheel of the electric vehicle away from the rear wheel limiting seat 13111, the front wheel limiting seat 13113 drives the lifting mechanism 120 to rise through the transmission assembly 133. When the front wheel limiting seat 13113 is driven by the front wheel of the electric vehicle toward the rear wheel limiting seat 13111, the front wheel limiting seat 13113 drives the lifting mechanism 120 to fall through the transmission assembly 133.

[0027] In the above manner, when the electric vehicle needs to enter the charging and parking space 101, the front wheel of the electric vehicle first enters the front wheel limit seat 13113 and cooperates with the front wheel limit seat 13113, so that when the electric vehicle moves forward, the electric vehicle drives the front wheel limit seat 13113 to move away from the rear wheel limit seat 13111, and pulls the front wheel limit seat 13113 and the rear wheel limit seat 13111 apart, so that the rear wheel of the electric vehicle enters the rear wheel limit seat 13111 and the front wheel limit seat 13113 drives the lifting mechanism 120 to rise through the transmission assembly 133.

[0028] It should be noted that when the electric vehicle parked in the charging parking space 101 needs to be withdrawn from the charging parking space 101, the electric vehicle is moved backward so that the front wheel of the electric vehicle drives the front wheel limit seat 13113 to move toward the direction close to the rear wheel limit seat 13111, so that the front wheel limit seat 13113 and the rear wheel limit seat 13111 are retracted to allow the rear wheel of the electric vehicle to withdraw from the rear wheel limit seat 13111, and then the front wheel of the electric vehicle is released from the front wheel limit seat 13113 and withdrawn from the front wheel limit seat 13113.

[0029] Alternatively, as Figures 1-6 As shown, rear wheel retaining seat 13111 is provided with rear wheel retaining groove 13112, which is used to receive and retain the bottom of the rear wheel of the electric vehicle. Front wheel retaining seat 13113 is provided with front wheel retaining groove 13114 and front wheel clamp 13115. Front wheel retaining groove 13114 is used to receive and retain the bottom of the front wheel of the electric vehicle. Front wheel clamp 13115 is provided on front wheel retaining seat 13113 corresponding to front wheel retaining groove 13114 and is used to clamp the front wheel of the electric vehicle.

[0030] Through the above method, the front wheel of the electric vehicle can cooperate with the front wheel limiting groove 13114 and the front wheel clamp 13115 to drive the front wheel limiting seat 13113 to move away from the rear wheel limiting seat 13111 when the electric vehicle moves forward, and drive the front wheel limiting seat 13113 to move towards the rear wheel limiting seat 13111 when the electric vehicle moves backward.

[0031] Alternatively, as Figures 1-6 As shown, the lifting mechanism 120 may be a swing mechanism 120 a , one end of the swing mechanism 120 a is rotatably disposed on the support base 200 , and the other end is connected to the wireless charging tray 110 .

[0032] The swing mechanism 120 a is connected to the transmission assembly 133 and is configured to swing upwards driven by the transmission assembly 133 to drive the wireless charging tray 110 to rise or swing downwards driven to drive the wireless charging tray 110 to descend.

[0033] In this manner, after the swing mechanism 120a swings downward, the swing mechanism 120a and the wireless charging tray 110 can be folded into the support base 200, thereby significantly miniaturizing the wireless charging device 100 and facilitating transportation of the wireless charging device 100. By way of example and not limitation, the swing mechanism 120a can be a parallelogram structure, but is not limited thereto.

[0034] Alternatively, as Figures 1-6 As shown, the transmission assembly 133 includes a driven gear 1331 and a strip-shaped extension 1332. The driven gear 1331 is rotatably mounted on the support base 200 and connected to one end of the swing mechanism 120a rotatably mounted on the support base 200. One end of the strip-shaped extension 1332 is meshed with the driven gear 1331 via a rack 1333. The other end of the strip-shaped extension 1332 extends along the front wheel stop 13113 away from the rear wheel stop 13111 and is provided with a first stop 1334.

[0035] The elastic connector 132 includes a connecting spring 1321, which is connected to the first catch 1334 and the support base 200. The first catch 1334 is configured to abut against the front wheel stop 13113 moving away from the rear wheel stop 13111, causing the swing mechanism 120a to swing upward and accumulating elastic potential energy in the connecting spring 1321. The connecting spring 1321 is configured to release the stored elastic energy when the front wheel stop 13113 moves toward the rear wheel stop 13111, causing the swing mechanism 120a to swing downward.

[0036] In this manner, when a vehicle enters charging and parking space 101, pushing the vehicle forward causes wireless charging tray 110 to rise. When the vehicle exits charging and parking space 101, pushing the vehicle backward causes wireless charging tray 110 to descend. This reduces secondary user operations and improves the convenience of wireless charging for the vehicle.

[0037] Alternatively, as Figures 1-8 As shown, when the front wheel limiting seat 13113 is away from the rear wheel limiting seat 13111, the spacing area formed between the rear wheel limiting seat 13111 and the front wheel limiting seat 13113 is the limiting seat spacing area Q.

[0038] The front wheel stopper 13113 moves along the support base 200 at least through the moving wheel set 300 to move away from or approach the rear wheel stopper 13111 in the front-rear direction. The swing mechanism 120a is provided corresponding to the stopper interval Q.

[0039] The swing mechanism 120a is configured to swing upward to cause the wireless charging tray 110 to extend upward through the stopper spacer Q to ascend to a raised state, or to swing downward to cause the wireless charging tray 110 to retract downward through the stopper spacer Q to descend to a lowered state. When the front wheel stopper 13113 is in the first state, the front wheel stopper 13113 covers the wireless charging tray 110 and the swing mechanism 120a.

[0040] In this way, when the electric vehicle is not needed to be charged, the wireless charging tray 110 retracted to the lowered state can be folded into the support base 200 and covered by the front wheel stopper 13113. This can achieve miniaturization of the wireless charging device 100 and facilitate transportation of the wireless charging device 100.

[0041] Alternatively, as Figures 1-8 As shown, the support base 200 is provided with a limit seat movable groove 201, a guide rail 400 is provided in the limit seat movable groove 201, and the moving wheel group 300 is rotatably provided in the guide rail 400.

[0042] The front wheel stopper 13113 moves away from or toward the rear wheel stopper 13111 in the stopper movable slot 201 along the front-to-back direction. When the wireless charging tray 110 is raised to the raised state, it extends out of the stopper movable slot 201. When it is lowered to the lowered state, the wireless charging tray 110 is lowered into the stopper movable slot 201.

[0043] In the above manner, the movable groove 201 of the limiting seat is used to accommodate the movement of the front wheel limiting seat 13113 , thereby further miniaturizing the wireless charging device 100 .

[0044] Alternatively, as Figures 1-8 As shown, at least one movable wheel assembly 300 is an elastic wheel assembly 300a. The support base 200 is provided with a second stopper 500, and the front wheel stopper 13113 is provided with a third stopper 600. The second stopper 500 and the third stopper 600 engage to prevent the front wheel stopper 13113 from moving away from the rear wheel stopper 13111.

[0045] Among them, when the front wheel of the electric vehicle enters the front wheel limit seat 13113, the front wheel limit seat 13113 can bear the weight of the electric vehicle and descend, so that the elastic wheel group 300a accumulates elastic potential energy and drives the third latch 600 to avoid the second latch 500, so as to allow the front wheel limit seat 13113 to move away from the rear wheel limit seat 13111.

[0046] Through the above-described method, before the front wheel of the electric vehicle enters the front wheel stopper 13113, the front wheel stopper 13113 can be stably parked on the end of the support base 200 near the rear wheel stopper 13111, so that the front wheel of the electric vehicle can enter the front wheel stopper 13113. When the front wheel of the electric vehicle enters the front wheel stopper 13113, the front wheel stopper 13113 can bear the weight of the electric vehicle and descend, causing the elastic wheel assembly 300a to accumulate elastic potential energy and drive the third stopper 600 to avoid the second stopper 500, allowing the front wheel stopper 13113 to move away from the rear wheel stopper 13111, so that the rear wheel can enter the rear wheel stopper 13111. Therefore, the present application can facilitate the convenient parking of the electric vehicle on the electric vehicle bracket 10.

[0047] It should be noted that when the vehicle parked on the electric vehicle bracket 10 is removed, the elastic wheel group 300a will release elastic potential energy to drive the front wheel limit seat 13113 moved to one end of the support base 200 close to the rear wheel limit seat 13111 to rise, so that the second locking member 500 and the third locking member 600 are restored to the locking cooperation.

[0048] Optionally, when installed in the three-dimensional parking system, the support base 200 can be tilted downward from the rear to the front, so that the front wheel stop 13113, with the assistance of the electric vehicle's gravity, can drive the front wheel of the electric vehicle to move away from the rear wheel stop 13111. By way of example and not limitation, the support base 200 can be tilted downward from the rear to the front in the three-dimensional parking system at an angle of 8 to 12 degrees relative to the horizontal plane, but is not limited thereto.

[0049] Optionally, combined Figures 1-8 , see Figure 9-10 As shown, the second latching member 500 includes a first connecting portion 510 and a first latching portion 520 , and the third latching member 600 includes a second connecting portion 610 and a second latching portion 620 .

[0050] The first connecting portion 510 is disposed on the support base 200 and extends upward, and the second connecting portion 610 is disposed on the front wheel stop seat 13113 and extends downward, and the first connecting portion 510 and the second connecting portion 610 are spaced apart in the left-right direction. The first locking portion 520 is disposed at the upper end of the first connecting portion 510 and protrudes in the left-right direction toward a side proximal to the second connecting portion 610. The second locking portion 620 is disposed at the lower end of the second connecting portion 610 and protrudes in the left-right direction toward a side proximal to the first connecting portion 510.

[0051] The first blocking portion 520 engages with the second blocking portion 620, thereby engaging the second blocking member 500 with the third blocking member 600. When the front wheel stopper 13113 descends, the second blocking portion 620 is driven downward, allowing the second blocking portion 620 to clear the first blocking portion 520 in the front-to-back direction, thereby allowing the third blocking member 600 to clear the second blocking member 500.

[0052] Alternatively, as Figures 1-10 As shown, the elastic wheel assembly 300a includes a wheel assembly mounting base 310a, an elastic support assembly 320a, a rolling wheel 340a mounting base 330a, and a rolling wheel 340a. The wheel assembly mounting base 310a is disposed at the bottom of the front wheel stop 13113. The top end of the elastic support assembly 320a is connected to the wheel assembly mounting base 310a, and the bottom end of the elastic support assembly 320a is connected to the rolling wheel 340a mounting base 330a. The rolling wheel 340a is disposed on the rolling wheel 340a mounting base 330a and rolls within the guide rail 400.

[0053] In the above manner, when the front wheel of the electric vehicle enters the front wheel limiting seat 13113, the front wheel limiting seat 13113 will descend to cause the wheel assembly mounting seat 310a to compress the elastic support component 320a, so that the elastic support component 320a accumulates elastic potential energy.

[0054] Alternatively, as Figures 1-10 As shown, the wheel assembly mounting seat 310a is provided with a lifting guide hole 311a with an opening facing upward, and the elastic support component 320a includes a guide rod 321a, a support spring 322a and an anti-slip limit block 323a.

[0055] A guide rod 321a is mounted on the roller wheel 340a mounting base 330a and extends upward to engage with the lifting guide hole 311a. A support spring 322a is sleeved on the guide rod 321a and elastically supports the wheel assembly mounting base 310a and the roller wheel 340a mounting base 330a in the vertical direction. An anti-slip stopper 323a is mounted on the end of the guide rod 321a that extends upward from the lifting guide hole 311a. It is used to engage with the wheel assembly mounting base 310a to prevent the guide rod 321a from being disengaged from the lifting guide hole 311a.

[0056] In the above manner, the guide rod 321a can guide the support spring 322a, so that the support spring 322a can elastically support the wheel assembly mounting seat 310a and the rolling wheel 340a mounting seat 330a more stably in the up and down directions.

[0057] The above is only an implementation method of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A wireless charging device, characterized in that: The wireless charging device comprises: A wireless charging tray, with a corresponding charging parking space for electric vehicles on the top, is used to wirelessly charge electric vehicles; a lifting mechanism connected to the wireless charging tray, configured to drive the wireless charging tray to rise to a raised state relatively close to the electric vehicle or to descend to a lowered state relatively far away from the electric vehicle; and a linkage mechanism connected to the lifting mechanism, for driving the lifting mechanism to rise or fall under the drive of the electric vehicle; Wherein, when the electric vehicle enters the charging and parking space, the wireless charging tray is in the raised state; when the electric vehicle exits the charging and parking space, the wireless charging tray is in the lowered state.

2. The wireless charging device according to claim 1, wherein: The linkage mechanism comprises: an electric vehicle contact member, configured to contact the electric vehicle and having a first state and a second state; when the electric vehicle enters the charging and parking space, the electric vehicle contact member is driven by the electric vehicle to the second state; an elastic connecting member connected to the electric vehicle actuator, configured to accumulate elastic potential energy when the electric vehicle actuator is driven toward the second state and release the elastic potential energy to drive the electric vehicle actuator to return to the first state when the electric vehicle exits the charging and parking space; and a transmission assembly, respectively connected to the electric vehicle actuator and the lifting mechanism, for driving the lifting mechanism to rise or fall; Wherein, in the second state, the electric vehicle trigger causes the wireless charging tray to be in the raised state through the transmission assembly; in the first state, the electric vehicle trigger causes the wireless charging tray to be in the lowered state through the transmission assembly.

3. An electric vehicle bracket, characterized in that: The electric vehicle bracket includes a support base and a wireless charging device, and the wireless charging device is the wireless charging device according to any one of claims 1 to 2 above; Among them, the electric vehicle trigger includes an electric vehicle limit seat, which is movably arranged on the support base and is used to support and fix the electric vehicle; the elastic connecting member is respectively connected to the support base and the electric vehicle limit seat; the electric vehicle limit seat can move in the up and down directions or the front and back directions, so that the electric vehicle can be driven to the second state by the electric vehicle when the electric vehicle enters the charging parking space.

4. The electric vehicle bracket according to claim 3, characterized in that: The electric vehicle limiting seat includes a rear wheel limiting seat and a front wheel limiting seat, and the rear wheel limiting seat and the front wheel limiting seat are arranged on the support base; The front wheel limit seat can move along the support base to move away from the rear wheel limit seat in the front-to-back direction so that the electric vehicle limit seat is driven to the second state, or move closer to the rear wheel limit seat in the front-to-back direction so that the electric vehicle limit seat is reset to the first state; the elastic connecting member is respectively connected to the front wheel limit seat and the support base; the transmission assembly is respectively connected to the front wheel limit seat and the lifting mechanism; When the front wheel limiting seat is driven by the front wheel of the electric vehicle to move away from the rear wheel limiting seat, the front wheel limiting seat drives the lifting mechanism to rise through the transmission assembly; when the front wheel limiting seat is driven by the front wheel of the electric vehicle to move close to the rear wheel limiting seat, the front wheel limiting seat drives the lifting mechanism to descend through the transmission assembly.

5. The electric vehicle bracket according to claim 4, characterized in that: The lifting mechanism is a swing mechanism, one end of which is rotatably arranged on the support base, and the other end is connected to the wireless charging plate; The swing mechanism is connected to the transmission assembly and is configured to swing upward under the drive of the transmission assembly to drive the wireless charging tray to rise or swing downward to drive the wireless charging tray to descend.

6. The electric vehicle bracket according to claim 5, characterized in that: The transmission assembly includes a driven gear and a bar-shaped extension; the driven gear is rotatably disposed on the support base and connected to one end of the swing mechanism rotatably disposed on the support base; one end of the bar-shaped extension is engaged with the driven gear through a rack, and the other end extends along the direction of the front wheel limit seat away from the rear wheel limit seat and is provided with a first blocking member; In which, the elastic connecting member includes a connecting spring, which is respectively connected to the first blocking member and the support base; the first blocking member is configured to abut against the front wheel limit seat moving in the direction away from the rear wheel limit seat, so that the swinging mechanism swings upward and the connecting spring accumulates elastic potential energy; the connecting spring is configured to release the elastic stored energy when the front wheel limit seat moves in the direction close to the rear wheel limit seat, so that the swinging mechanism swings downward.

7. The electric vehicle bracket according to claim 6, characterized in that: When the front wheel limiting seat is away from the rear wheel limiting seat, the spacing area formed between the rear wheel limiting seat and the front wheel limiting seat is the limiting seat spacing area; The front wheel limiting seat moves along the support base at least by means of a movable wheel set, so as to move away from or approach the rear wheel limiting seat in the front-to-back direction; the swing mechanism is arranged corresponding to the spacing area of ​​the limiting seat; In which, the swing mechanism is configured to swing upward to drive the wireless charging plate to extend upward through the limit seat spacer to rise to the raised state or swing downward to drive the wireless charging plate to retract downward through the limit seat spacer to descend to the lowered state; when the front wheel limit seat is in the first state, the front wheel limit seat covers the wireless charging plate and the swing mechanism.

8. The electric vehicle bracket according to claim 7, characterized in that: The support base is provided with a limit seat movable groove, a guide rail is provided in the limit seat movable groove, and the movable wheel group is rotatably provided in the guide rail; Among them, the front wheel limit seat moves away from or closer to the rear wheel limit seat in the front-to-back direction in the limit seat movable groove; the wireless charging plate that rises to the raised state extends out of the limit seat movable groove, and the wireless charging plate that descends to the lowered state descends into the limit seat movable groove.

9. The electric vehicle bracket according to claim 7, characterized in that: At least one of the movable wheel groups of the front wheel limiting seat is an elastic wheel group; the support base is provided with a second blocking member, and the front wheel limiting seat is provided with a third blocking member; the second blocking member and the third blocking member engage with each other to prevent the front wheel limiting seat from moving in a direction away from the rear wheel limiting seat; Among them, when the front wheel of the electric vehicle enters the front wheel limit seat, the front wheel limit seat can bear the weight of the electric vehicle and descend, so that the elastic wheel group accumulates elastic potential energy and drives the third latch to avoid the second latch, so as to allow the front wheel limit seat to move away from the rear wheel limit seat.

10. The electric vehicle bracket according to claim 4, characterized in that: The rear wheel limiting seat is provided with a rear wheel limiting groove, and the rear wheel limiting groove is used to accommodate and limit the bottom of the rear wheel of the electric vehicle; the front wheel limiting seat is provided with: The front wheel limiting groove is used to accommodate and limit the bottom of the front wheel of the electric vehicle; And a front wheel clamp is arranged on the front wheel limiting seat corresponding to the front wheel limiting groove, and is used for clamping the front wheel of the electric vehicle.

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