Wheel positioning device for battery replacement platform of battery replacement station, battery replacement platform and control method

Abstract

The application discloses a wheel positioning device for a battery replacing platform of a battery replacing station, the battery replacing platform and a control method, the wheel positioning device comprising: a limiting device, the limiting device comprising two limiting pieces, the two limiting pieces are both rotationally connected to a body of the battery replacing platform through rotating end portions and protrude from an upper surface of the body of the battery replacing platform; the limiting piece comprises a sliding inclined surface and a supporting inclined surface which are rotationally connected, the supporting inclined surface is provided with the rotating end portion on a side edge away from the sliding inclined surface and is rotationally connected to the body of the battery replacing platform, and a side edge of the sliding inclined surface away from the supporting inclined surface is slidably connected to the body of the battery replacing platform; and a driving assembly, the driving assembly comprising two flexible cavities, the two flexible cavities are connected with the two limiting pieces respectively. Thus, the vehicle effectively reduces the bumping feeling through the limiting device, and the experience is greatly improved; the device has the advantages of simple control, good flexibility and high stability; and the flexible cavity occupies a smaller space when not inflated.

Description

[0001] This application is a divisional application of the Chinese Invention Patent with the application number 202110328543.6 and the title "Wheel positioning device for battery swap station swap platform, swap platform and control method", the application date of which is March 26, 2021. TECHNICAL FIELD

[0002] The present application relates to a wheel positioning device for a battery swap station swap platform, a swap platform and a control method. BACKGROUND

[0003] The vehicle positioning device is an important part of the battery replacement equipment of the electric vehicle. The electric vehicle drives onto the vehicle loading platform, and the vehicle positioning device can position the electric vehicle.

[0004] At present, the vehicle positioning device generally positions the wheels in a V-shaped groove. When the wheels enter the V-shaped groove, the vehicle stops and the battery replacement begins. The advantage of this positioning method is that the vehicle positioning device is simple and reliable, and does not require too complex a mechanism to achieve the positioning of the electric vehicle in the front-rear direction. However, due to the structure limitation, the existing vehicle positioning device is generally a fixed V-shaped positioning component that protrudes from the vehicle loading platform. When the electric vehicle drives into the V-shaped positioning component, the driver has a clear feeling of driving into a pit at the moment when the wheels enter the groove. After the battery replacement is completed, the electric vehicle needs to accelerate to drive out of the groove, and the electric vehicle will have a jolt when driving through the V-shaped positioning component, resulting in a poor driving experience.

[0005] In the patent document with the patent authorization announcement number CN211765460U, the driving mechanism drives two blocking pieces to expand or close in different directions through the transmission mechanism, thereby forming a wheel limiting space and avoiding the jolt of the vehicle. First, the driving mechanism in the patent document uses a push rod or a servo motor to drive the opening and closing of the blocking piece. The push rod or the servo motor is connected to one end of the blocking piece, and a stop position is preset. Under the action of the push rod or the servo motor, the blocking piece rotates along the opposite end of the push rod and stops rotating when it reaches the stop position. Since the force of the push rod or the servo motor is not soft enough, it will cause a certain impact on the wheels. Moreover, the driving mechanism and the transmission mechanism have a certain volume and need to occupy a certain installation and movement space, which limits the installation position. SUMMARY

[0006] The technical problem to be solved by the present application is to overcome the impact on the vehicle during the positioning process of the existing vehicle positioning device. Moreover, the driving mechanism and the transmission mechanism have a certain volume and need to occupy a certain installation and movement space, which limits the installation position. The present application provides a wheel positioning device for a battery swap station swap platform, a swap platform and a control method.

[0007] The present application solves the above technical problems by the following technical solutions:

[0008] A wheel positioning device for a battery replacement platform of a battery replacement station, comprising:

[0009] A limiting device, comprising two limiting members, both of which are rotatably connected to the body of the battery replacement platform through rotating ends and protrude from the upper surface of the body of the battery replacement platform, and are respectively used for limiting the two movement trends of the wheels of the vehicle forward and backward, so that the wheels of the vehicle are limited between the two limiting members;

[0010] The limiting member comprises a rotatingly connected sliding slope and a supporting slope, the supporting slope is provided with the rotating end on the side away from the sliding slope and is rotatably connected to the body of the battery replacement platform, and the sliding slope is slidably connected to the body of the battery replacement platform on the side away from the supporting slope; and a driving assembly, comprising two flexible cavities, both of which are connected to the two limiting members, and the inflation or deflation of the flexible cavities makes the limiting member rotate along the rotating end, so that the inclination angles between the supporting slope and the sliding slope and the body of the battery replacement platform change, to push the sliding slope to slide forward away from the supporting slope, so as to reduce the height of the limiting member protruding from the upper surface of the body of the battery replacement platform when the vehicle passes through; and the inflation or deflation of the flexible cavities makes the sliding slopes of the two limiting members slide in the same direction or opposite directions.

[0011] In the present scheme, the above structure is adopted, the positioning of the vehicle is realized by the inflation of the flexible cavity, and whether the positioning is realized is judged according to whether the flexible cavity reaches force balance. During the positioning process, the gas can absorb part of the force through volume compression, so that the force of the limiting member on the wheels is relatively soft and impact is not easy to occur, which greatly improves the experience of the passengers in the vehicle. Then the sliding slope is pushed to slide on the body of the battery replacement platform through the deflation of the flexible cavity, so that the height of the limiting member protruding from the upper surface of the body of the battery replacement platform is reduced when the vehicle passes through, thereby realizing that the vehicle effectively reduces the bumping feeling when passing through the limiting device, and greatly improving the experience. Moreover, the present scheme has the advantages of simple control, good flexibility and high stability, effectively realizes the accurate positioning of the vehicle, and avoids displacement of the vehicle during the battery replacement operation. At the same time, the flexible cavity is used as the driving assembly, which occupies a smaller space when not inflated, has a simple structure and low cost. Especially when the sliding slope of the limiting member is set to slide forward, the limiting member can be pressed to be flat with the wheels rolling when the flexible cavity is deflated but not enough to make the limiting member flat, thereby realizing that the vehicle effectively reduces the bumping feeling when passing through the limiting device, and greatly improving the experience.

[0012] In addition, the two limiting members and the two flexible cavities are symmetrically arranged, so that the driving assembly directly acts on the supporting inclined surfaces of the two limiting members and is used for limiting the two movement trends of the wheels of the vehicle, thereby achieving accurate positioning, further avoiding displacement of the vehicle during battery replacement operation, and greatly improving the stability of the wheel positioning device.

[0013] Preferably, the two limiting members are a front limiting member and a rear limiting member, and the front limiting member and the rear limiting member are arranged on the upper surface of the battery replacement platform body in front and back along the driving direction of the vehicle.

[0014] The supporting inclined surface of the front limiting member is close to the sliding inclined surface of the rear limiting member, and when the flexible cavity is inflated or deflated, the sliding inclined surface of the front limiting member and the sliding inclined surface of the rear limiting member slide in the same direction; or the supporting inclined surface of the front limiting member is close to the supporting inclined surface of the rear limiting member, and when the flexible cavity is inflated or deflated, the sliding inclined surface of the front limiting member and the sliding inclined surface of the rear limiting member slide in opposite directions.

[0015] In the scheme, the above structure is adopted, the front limiting member and the rear limiting member and the two flexible cavities are arranged on the same side, and the installation is convenient; in particular, when the sliding inclined surfaces of the front limiting member and the rear limiting member are arranged to slide forward, the front limiting member and the rear limiting member can be pressed to be flat with the rolling of the wheels when the flexible cavity is deflated but not enough to change the front limiting member and the rear limiting member to be flat, thereby realizing that the vehicle passes through the limiting device to effectively reduce the bump feeling and greatly improves the experience.

[0016] In addition, the two limiting members and the two flexible cavities are symmetrically arranged, so that the driving assembly directly acts on the supporting inclined surfaces of the two limiting members and is used for limiting the two movement trends of the wheels of the vehicle, thereby achieving accurate positioning, further avoiding displacement of the vehicle during battery replacement operation, and greatly improving the stability of the wheel positioning device.

[0017] Preferably, the upper surface of the limiting device is located on the same plane as the upper surface of the battery replacement platform body after the flexible cavity is deflated.

[0018] In the scheme, the above structure is adopted, the front limiting member and the rear limiting member and the two flexible cavities are arranged on the same side, and the installation is convenient; in particular, when the sliding inclined surfaces of the front limiting member and the rear limiting member are arranged to slide forward, the front limiting member and the rear limiting member can be pressed to be flat with the rolling of the wheels when the flexible cavity is deflated but not enough to change the front limiting member and the rear limiting member to be flat, thereby realizing that the vehicle passes through the limiting device to effectively reduce the bump feeling and greatly improves the experience.

[0019] Preferably, the cross-sectional shape of the flexible cavity after being filled with gas is fan-shaped and has two connecting planes, and the two connecting planes are connected to the supporting inclined surface and the battery replacement platform body, respectively.

[0020] In the scheme, the flexible cavity is connected to the support slope and the battery replacement platform body through two connection planes, so that the connection area between the flexible cavity and the support slope and the battery replacement platform body is large, and the stability of the driving limiting piece is higher when rotating. At the same time, the cross-sectional shape of the flexible cavity after being filled with gas is fan-shaped, so that the limiting piece rotates smoothly upward or downward, and the wheel abutting limiting is more stable.

[0021] Preferably, the flexible cavity is an accordion air bag, and the two connection planes form a preset angle after being filled with gas, and the non-linear side of the flexible cavity is an accordion fold.

[0022] In the scheme, the flexible cavity is connected to the support slope and the battery replacement platform body through two connection planes, so that the connection area between the flexible cavity and the support slope and the battery replacement platform body is large, and the stability of the driving limiting piece is higher when rotating. At the same time, the cross-sectional shape of the flexible cavity after being filled with gas is fan-shaped, so that the limiting piece rotates smoothly upward or downward, and the wheel abutting limiting is more stable.

[0023] Preferably, the sliding slope is provided with a roller away from one side of the support slope.

[0024] In the scheme, the sliding slope is supported against the battery replacement platform body through the roller, and the roller slides on the battery replacement platform body, so that the sliding slope is slidably connected to the battery replacement platform body. The roller facilitates the sliding of the sliding slope on the battery replacement platform body, and the stability is higher.

[0025] Preferably, the battery replacement platform body is provided with a downward recessed accommodating cavity corresponding to the mounting position of the flexible cavity, and the accommodating cavity is used to accommodate the flexible cavity after being deflated.

[0026] In the scheme, the flexible cavity is located in the accommodating cavity after being deflated, and does not protrude from the upper surface of the battery replacement platform body, so that the upper surface of the limiting device and the upper surface of the battery replacement platform body are located on the same horizontal plane, and the vehicle passes through the limiting device without any bumping feeling. At the same time, the accommodating cavity can also be used to protect the flexible cavity and prolong the service life of the flexible cavity; and the driving assembly occupies very small space.

[0027] Preferably, the length of the support slope in the vehicle driving direction is greater than the length of the accommodating cavity in the vehicle driving direction.

[0028] In the scheme, the above structure is adopted, the supporting slope is used to shield the accommodating cavity and protect the flexible cavity; meanwhile, the supporting slope cannot fall into the accommodating cavity, so that the wheel cannot be jolted by the accommodating cavity.

[0029] Preferably, the battery replacement platform body is provided with a sliding groove corresponding to the sliding path of the sliding slope, and the sliding groove is communicated with the accommodating cavity.

[0030] When the flexible cavity is deflated, the sliding slope and the supporting slope are accommodated in the sliding groove and the accommodating cavity, so that the upper surfaces of the sliding slope and the supporting slope are flush with the upper surface of the battery replacement platform body.

[0031] In the scheme, the above structure is adopted, the sliding groove can limit the sliding of the sliding slope, effectively avoiding the deviation and misalignment of the sliding slope during the sliding process, and greatly improving the stability of the wheel positioning device. Meanwhile, the space of the sliding groove and the accommodating cavity is used to accommodate the sliding slope and the supporting slope, so that the deflation of the flexible cavity drives the limiting member to rotate downward, so that the upper surface of the limiting device is flush with the upper surface of the battery replacement platform body, and the vehicle passes through the limiting device without jolt, and the experience is best.

[0032] Preferably, the two limiting members are a front limiting member and a rear limiting member, the supporting slope of the rear limiting member, the sliding slope of the rear limiting member, and the supporting slope and the sliding slope of the front limiting member are sequentially arranged on the battery replacement platform body in the driving direction of the vehicle, and the two flexible cavities are connected with the two supporting slopes.

[0033] The front limiting member limits the forward movement trend of the wheel of the vehicle through the supporting slope, and the rear limiting member limits the backward movement trend of the wheel of the vehicle through the sliding slope.

[0034] In the scheme, the above structure is adopted, the front limiting member and the rear limiting member are arranged on the same side of the battery replacement platform body, which is convenient to install; and the wheel of the vehicle is limited by the supporting slope of the front limiting member and the sliding slope of the rear limiting member, so that accurate positioning is realized and the vehicle is prevented from being displaced during the battery replacement operation.

[0035] Preferably, the sliding slope of the rear limiting member is provided with a ball or a roller.

[0036] In the scheme, the above structure is adopted, the ball or the roller facilitates the movement of the wheel on the sliding slope, and is convenient for adjusting the wheel to realize accurate positioning.

[0037] Preferably, the sliding slope of the rear limiting member is provided with a roller with an axis perpendicular to the driving direction of the vehicle.

[0038] In the present scheme, the above structure is adopted, and the roller with the axis perpendicular to the driving direction of the vehicle facilitates the back-and-forth movement of the wheel on the sliding slope, and facilitates the adjustment of the wheel to achieve accurate positioning.

[0039] Preferably, the section of the limiting member along the front-rear direction of the vehicle is triangular.

[0040] In the present scheme, the above structure is adopted, and the side of the limiting member protruding from the upper surface of the battery swap platform body is inclined, which has a limiting effect on the wheel. Meanwhile, the support slope is facilitated to rotate downward when the wheel passes through the limiting member, and the use is very convenient.

[0041] A battery swap platform comprises the wheel positioning device as described above, and the limiting device is installed at a position corresponding to the parking position of the wheel of the vehicle.

[0042] In the present scheme, the above structure is adopted, and the positioning of the vehicle is achieved by inflating the flexible cavity. Whether the positioning is achieved is determined according to whether the flexible cavity reaches force balance. During the positioning process, the gas can absorb part of the force through volume compression, so that the force of the limiting member on the wheel is relatively soft, and impact is not easy to occur, which greatly improves the experience of the passengers in the vehicle. Then, the deflation of the flexible cavity drives the sliding slope to slide on the battery swap platform body, so that the height of the limiting member protruding from the upper surface of the battery swap platform body is reduced when the vehicle passes through, thereby effectively reducing the bumping feeling of the vehicle passing through the limiting device, and greatly improving the experience. The method has the advantages of simple control, good flexibility, high stability, and effective realization of accurate positioning of the vehicle. Meanwhile, the flexible cavity occupies a small space when it is not inflated.

[0043] A vehicle positioning control method is used for the battery swap platform as described above, and the vehicle positioning control method comprises the following steps:

[0044] Before the vehicle enters the battery swap position of the battery swap platform body, the flexible cavity of the rear limiting member corresponding to the parking position of the front wheel is deflated to drive the inclination angle between the support slope of the rear limiting member and the battery swap platform body to be smaller, so that the vehicle can pass through the rear limiting member.

[0045] The flexible cavity of the front limiting member corresponding to the parking position of the front wheel is inflated or kept inflated to make the inclination angle between the support slope of the front limiting member and the battery swap platform body larger, so as to limit the forward movement trend of the vehicle.

[0046] In the scheme, the flexible cavity connected with the rear limiting member is controlled to deflate, so as to reduce the height of the rear limiting member protruding from the upper surface of the battery replacement platform body, so that when the front wheels of the vehicle pass through the rear limiting member to enter the wheel positioning device, the bumping feeling is effectively reduced, and the experience is good. The flexible cavity of the front limiting member is controlled to inflate or keep inflated, so as to keep the height of the front limiting member protruding from the upper surface of the battery replacement platform body, limit the forward movement trend of the vehicle, and achieve accurate positioning of the front wheels of the vehicle. The flexible cavity driving has the advantages of simple control, good flexibility and high stability, and effectively achieves accurate positioning of the front wheels of the vehicle. At the same time, the flexible cavity occupies a small space when it is not inflated, has a simple structure and low cost.

[0047] Preferably, after the vehicle reaches the battery replacement position of the battery replacement platform body, the flexible cavity of the rear limiting member corresponding to the front wheel parking place is controlled to inflate to drive the inclination angle between the support slope of the rear limiting member and the battery replacement platform body to be larger, so as to position the front wheel.

[0048] In the scheme, the flexible cavity of the rear limiting member is inflated, and the height of the rear limiting member protruding from the upper surface of the battery replacement platform body is controlled, so that the wheels of the vehicle are positioned between the front limiting member and the rear limiting member, so as to ensure that the front wheels of the vehicle do not shift during the battery replacement operation. It has the advantages of simple control, good flexibility and high stability, realizes accurate positioning of the front wheels of the vehicle, and avoids displacement of the vehicle during the battery replacement operation.

[0049] Preferably, the vehicle positioning control method further comprises:

[0050] Before the vehicle drives out of the battery replacement platform body, the flexible cavities of the front limiting member and the rear limiting member corresponding to the front wheel parking place are controlled to deflate, so as to drive the inclination angle between the support slope of the front limiting member and the battery replacement platform body and the inclination angle between the support slope of the rear limiting member and the battery replacement platform body to be smaller, so that the vehicle passes through the front limiting member and the rear limiting member.

[0051] In the scheme, the flexible cavity connected with the front limiting member and the rear limiting member is controlled to deflate, so as to reduce the height of the front limiting member and the rear limiting member protruding from the upper surface of the battery replacement platform body, so that when the front wheels and the rear wheels of the vehicle pass through the front limiting member and the rear limiting member corresponding to the front wheel parking place, the bumping feeling is effectively reduced, and the experience is good. At the same time, when the front wheels of the next vehicle pass through the rear limiting member to enter the wheel positioning device, the bumping feeling is effectively reduced, the experience is good, the occupied space is small, the structure is simple, and the cost is low.

[0052] Preferably, the vehicle positioning control method further comprises:

[0053] Before the vehicle drives into or drives out the battery replacement position of the battery replacement platform body, the flexible cavities connected with the front limiting piece and the rear limiting piece are controlled to deflate, so that the inclination angles between the support inclined surfaces of the front limiting piece and the rear limiting piece and the battery replacement platform body are reduced, so that the vehicle passes through the front limiting piece and the rear limiting piece of the corresponding rear wheel parking place.

[0054] In the scheme, the flexible cavities connected with the front limiting piece and the rear limiting piece are controlled to deflate, so that the heights of the front limiting piece and the rear limiting piece protruding from the upper surface of the battery replacement platform body are reduced, so that when the front wheels and the rear wheels of the vehicle pass through the front limiting piece and the rear limiting piece of the corresponding rear wheel parking place, the bumping feeling is effectively reduced, and the experience is good; at the same time, when the front wheels of the next vehicle pass through the front limiting piece and the rear limiting piece of the corresponding rear wheel parking place, and the rear wheels of the next vehicle pass through the rear limiting piece of the corresponding rear wheel parking place, the bumping feeling is effectively reduced, the experience is good, the occupied space is small, the structure is simple, and the cost is low.

[0055] Preferably, the vehicle positioning control method further comprises:

[0056] After the vehicle reaches the battery replacement position of the battery replacement platform body, the flexible cavities connected with the front limiting piece and the rear limiting piece are controlled to inflate, so that the inclination angles between the support inclined surfaces of the front limiting piece and the rear limiting piece and the battery replacement platform body are increased, and the vehicle is positioned.

[0057] In the scheme, the flexible cavities connected with the front limiting piece and the rear limiting piece are controlled to inflate, and the heights of the front limiting piece and the rear limiting piece protruding from the upper surface of the battery replacement platform body. The front limiting piece and the rear limiting piece are respectively used for limiting the two movement trends of the rear wheels of the vehicle, i.e. the front wheel and the rear wheel, so that the rear wheels of the vehicle are limited between the front limiting piece and the rear limiting piece, so as to ensure that the rear wheels of the vehicle are not displaced during the battery replacement operation, and has the advantages of simple control, good flexibility and high stability, realizes accurate positioning of the rear wheels of the vehicle, and avoids displacement of the vehicle during the battery replacement operation.

[0058] On the basis of conforming to the common sense in the art, the above-mentioned various preferred conditions can be combined arbitrarily, i.e. to obtain each preferred example of the present application.

[0059] The positive progress effect of the present application is that:

[0060] The wheel positioning device for the battery replacing platform of the battery replacing station, the battery replacing platform and the control method of the application, by inflating or deflating the flexible cavity to push the sliding slope to slide on the body of the battery replacing platform, the height of the protrusion of the limiting piece from the upper surface of the body of the battery replacing platform is lowered when the vehicle passes, so that the jolt feeling is effectively reduced by the limiting device, the experience is greatly improved; and the control is simple, the flexibility is good, the stability is high, the accurate positioning of the vehicle is effectively realized; at the same time, the space occupied by the flexible cavity when not inflated is small. BRIEF DESCRIPTION OF DRAWINGS

[0061] Figure 1 It is a structure schematic view of the battery replacing platform of the application embodiment 1 when inflated.

[0062] Figure 2 It is a structure schematic view of the wheel positioning device of the application embodiment 1 when inflated.

[0063] Figure 3 It is a part of the structure schematic view of the wheel positioning device of the application embodiment 1 when inflated.

[0064] Figure 4 It is a part of the structure schematic view of the wheel positioning device of the application embodiment 1 when inflated.

[0065] Figure 5 It is a structure schematic view of the battery replacing platform of the application embodiment 1 when deflated.

[0066] Figure 6 It is a structure schematic view of the wheel positioning device of the application embodiment 1 when deflated.

[0067] Figure 7 It is a part of the structure schematic view of the wheel positioning device of the application embodiment 1 when deflated.

[0068] Figure 8 It is a flow chart of the vehicle front wheel positioning control method of the application embodiment 2.

[0069] Figure 9 It is a flow chart of the vehicle rear wheel positioning control method of the application embodiment 2.

[0070] Explanation of reference signs:

[0071] Limiting device 1

[0072] Front limiting piece 11

[0073] Supporting slope 111

[0074] Sliding slope 112

[0075] Rear limiting piece 12

[0076] Positioning piece 13

[0077] drive assembly 2

[0078] flexible cavity 21

[0079] battery replacement platform body 10

[0080] accommodation cavity 101

[0081] chute 102 DETAILED DESCRIPTION

[0082] The present application will be more fully understood from the following detailed description taken in connection with the accompanying drawings, in which:

[0083] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 , the battery replacement platform of the embodiment of the present application comprises a wheel positioning device for a battery replacement station battery replacement platform and a battery replacement platform body 10, the wheel positioning device is arranged on the battery replacement platform body 10, and the wheel positioning device is installed at a position corresponding to the wheel stop of the vehicle.

[0084] The wheel positioning device for a battery replacement station battery replacement platform comprises a limiting device 1 and a drive assembly 2, the limiting device 1 comprises two limiting members, both of which are rotatably connected to the battery replacement platform body 10 through a rotating end and protrude from the upper surface of the battery replacement platform body 10, and both of which are used for limiting the two movement trends of the vehicle wheels forward and backward, so that the vehicle wheels are limited between the two limiting members; the limiting member comprises a rotatingly connected sliding slope 112 and a supporting slope 111, the supporting slope 111 is provided with a rotating end on the side away from the sliding slope 112 and is arranged to be rotatably connected to the battery replacement platform body 10, and the sliding slope 112 is arranged to be slidably connected to the battery replacement platform body 10 on the side away from the supporting slope 111; the drive assembly 2 comprises two flexible cavities 21, both of which are connected to the two limiting members, and the limiting member is rotated along the rotating end by inflating or deflating the flexible cavity 21, so that the inclination angle between the supporting slope 111 and the sliding slope 112 and the battery replacement platform body 10 changes, to push the sliding slope 112 to slide forward in the direction away from the supporting slope 111, so as to reduce the height of the limiting member protruding from the upper surface of the battery replacement platform body 10 when the vehicle passes through.

[0085] The limiting device 1 is installed at the position where the wheels of the corresponding vehicle stop. Before the wheels of the vehicle enter the wheel positioning device, by deflating the flexible cavity 21, the overall volume of the flexible cavity 21 becomes smaller, so that the sliding slope 112 moves towards the direction away from the supporting slope 111, and the supporting slope 111 is turned downward on the battery replacement platform body 10 by the rotating end, thereby reducing the height of the limiting member protruding from the upper surface of the battery replacement platform body 10, and the wheels will enter the wheel positioning device through the limiting device 1, effectively reducing the bumping feeling of the vehicle, and greatly improving the experience.

[0086] When the wheels enter the wheel positioning device and stop at the position, by inflating the flexible cavity 21, the overall volume of the flexible cavity 21 becomes larger, so that the sliding slope 112 moves towards the direction close to the supporting slope 111, and the supporting slope 111 is turned upward on the battery replacement platform body 10 by the rotating end, the height of the limiting member protruding from the upper surface of the battery replacement platform body 10, both limiting members are used to limit the two movement trends of the wheels of the vehicle forward and backward, so that the wheels of the vehicle are limited between the two limiting members; thereby achieving precise positioning and avoiding displacement of the vehicle during battery replacement operation. At the same time, the positioning of the vehicle is achieved by inflating the flexible cavity 21, and whether the positioning is achieved is judged according to whether the flexible cavity 21 reaches force balance. During the positioning process, the gas can absorb part of the force by volume compression, so that the force of the limiting member on the wheels is relatively soft and is not easy to produce impact, greatly improving the experience of the passengers in the vehicle.

[0087] Before the wheels of the vehicle exit the wheel positioning device, by deflating the flexible cavity 21, the overall volume of the flexible cavity 21 becomes smaller, so that the sliding slope 112 moves towards the direction away from the supporting slope 111, and the supporting slope 111 is turned downward on the battery replacement platform body 10 by the rotating end, thereby reducing the height of the limiting member protruding from the upper surface of the battery replacement platform body 10, and the wheels will exit the wheel positioning device through the limiting device 1. The vehicle effectively reduces the bumping feeling through the limiting device 1, greatly improving the experience. At the same time, the flexible cavity 21 has the advantages of simple control, good flexibility and high stability, and effectively achieves precise positioning of the vehicle; at the same time, the flexible cavity 21 is used as the driving component 2, which occupies less space when not inflated, has simple structure and low cost.

[0088] In the embodiment, the two limit members are respectively front limit member 11 and rear limit member 12, the front limit member 11 and the rear limit member 12 are arranged on the upper surface of the battery swap platform body 10 in front and back along the driving direction of the vehicle; the two flexible cavities 21 are respectively connected with the support inclined surface 111 of the front limit member 11 and the support inclined surface 111 of the rear limit member 12; the support inclined surface 111 of the front limit member 11 is close to the sliding inclined surface 112 of the rear limit member 12, and when the flexible cavity 21 is inflated or deflated, the sliding inclined surface 112 of the front limit member 11 and the sliding inclined surface 112 of the rear limit member 12 slide in the same direction.

[0089] The setting directions of the support inclined surface 111 and the sliding inclined surface 112 in the front limit member 11 and the rear limit member 12 are the same, and the two flexible cavities 21 are arranged on the same side and respectively connected with the support inclined surface 111 of the front limit member 11 and the rear limit member 12, which is convenient for installation and setting. The front limit member 11 is used for limiting the forward movement trend of the wheels of the vehicle through the support inclined surface 111, and the rear limit member 12 is used for limiting the backward movement trend of the wheels of the vehicle through the sliding inclined surface 112. The driving assembly 2 directly acts on the support inclined surface 111 of the two limit members to drive the rotation of the support inclined surface 111 instead of acting on the sliding inclined surface 112, so that the rotation of the support inclined surface 111 is more stable; and it is ensured that the sliding inclined surface 112 can slide more stably on the battery swap platform body 10. Especially when the sliding inclined surface 112 of the front limit member 11 and the rear limit member 12 is arranged to slide forward, when the flexible cavity 21 is deflated but not enough to make the front limit member 11 and the rear limit member 12 into a plane, the front limit member 11 and the rear limit member 12 can be pressed into a plane with the rolling of the wheels, so as to realize that the vehicle passes through the limiting device 1 to effectively reduce the bump feeling, and greatly improve the experience. In the embodiment, preferably, the sliding inclined surface 112 of the front limit member 11 and the sliding inclined surface 112 of the rear limit member 12 both slide forward along the driving direction of the vehicle, so that when the pulling force of the flexible cavity 21 is not enough to make the front limit member 11 or the rear limit member 12 into a plane when the flexible cavity 21 is deflated, the front limit member 11 and the rear limit member 12 can also be made into a plane under the action of the wheels when the wheels drive forward, so that the vehicle passes through the limiting device 1 completely without bump feeling, and the experience is best.

[0090] Of course, in other embodiments, the support slope 111 of the front limiting part 11 is close to the support slope 111 of the rear limiting part 12, and when the flexible cavity 21 is inflated or deflated, the sliding slope 112 of the front limiting part 11 and the sliding slope 112 of the rear limiting part 12 slide in opposite directions. The two flexible cavities 21 are symmetrically arranged and connected to the support slopes 111 of the front limiting part 11 and the rear limiting part 12 respectively, and the front limiting part 11 and the rear limiting part 12 are arranged in opposite directions, that is, the two support slopes 111 of the front limiting part 11 and the rear limiting part 12 are oppositely arranged and used for limiting the two movement trends of the wheels of the vehicle forward and backward. The driving assembly 2 directly acts on the support slopes 111 of the two limiting parts and is used for limiting the two movement trends of the wheels of the vehicle forward and backward, so as to realize accurate positioning and further avoid displacement of the vehicle during battery replacement, thereby greatly improving the stability of the wheel positioning device.

[0091] After the flexible cavity 21 is deflated, the upper surface of the limiting device 1 is located on the same plane as the upper surface of the battery replacement platform body 10. By deflating the flexible cavity 21, the flexible cavity 21 can rotate the driving limiting part downward, so that the upper surface of the limiting device 1 is located on the same horizontal plane as the upper surface of the battery replacement platform body 10, and the vehicle can pass through the limiting device 1 without any bumping feeling, and the experience is best. Of course, in other embodiments, the driving assembly 2 can drive the limiting part to rotate downward to be slightly lower or slightly higher than the upper surface of the battery replacement platform body 10.

[0092] The cross-sectional shape of the flexible cavity 21 after being inflated is fan-shaped and has two connecting planes, which are connected to the support slope 111 and the battery replacement platform body 10 respectively. The flexible cavity 21 is connected to the support slope 111 and the battery replacement platform body 10 through the two connecting planes, so that the connection area between the flexible cavity 21 and the support slope 111 and the battery replacement platform body 10 is large, and the stability of the driving limiting part during rotation is higher. At the same time, the cross-sectional shape of the flexible cavity 21 after being inflated is fan-shaped, so that the limiting part rotates smoothly upward or downward, and the wheel is more stable when abutting against the limiting part.

[0093] In one embodiment, the flexible cavity 21 is an accordion air bag, and after being inflated, the flexible cavity 21 forms an included angle of a preset angle between the two connecting planes, and the non-straight side of the flexible cavity 21 is accordion pleats. After being inflated, the included angle between the two connecting planes is formed to make the included angle between the support slope 111 and the battery replacement platform body 10 certain, so that the support slope 111 realizes limiting of the wheel at a preset angle and realizes accurate positioning. At the same time, the flexible cavity 21 can realize inflation and deflation through accordion pleats, which is beneficial to deformation and contraction, occupies small space, has simple structure and low cost.

[0094] The accommodating cavity 101 is arranged on the installation position of the flexible cavity 21 of the battery replacement platform body 10, and is used for accommodating the deflated flexible cavity 21. After the flexible cavity 21 is deflated, the flexible cavity 21 is located in the accommodating cavity 101 and does not protrude from the upper surface of the battery replacement platform body 10, so that the driving assembly 2 can rotate the limiting device 1 downward, thereby realizing that the upper surface of the limiting device 1 and the upper surface of the battery replacement platform body 10 are located on the same horizontal plane, and the vehicle passes through the limiting device 1 without bumping. At the same time, the accommodating cavity 101 can also be used for protecting the flexible cavity 21 and prolonging the service life of the flexible cavity 21; and the driving assembly 2 occupies very small space.

[0095] In the embodiment, the length of the support slope 111 along the vehicle driving direction is greater than the length of the accommodating cavity 101 along the vehicle driving direction. After the flexible cavity 21 is deflated, the flexible cavity 21 is located in the accommodating cavity 101, so that the support slope 111 is flattened and supported against the upper surface of the battery replacement platform body 10, and the support slope 111 is used for shielding the accommodating cavity 101 and protecting the flexible cavity 21; at the same time, the support slope 111 does not fall into the accommodating cavity 101, so as to ensure that the vehicle wheel does not bump due to the accommodating cavity 101. Of course, in other embodiments, the length of the support slope 111 and the sliding slope 112 along the vehicle driving direction is greater than the length of the accommodating cavity 101 along the vehicle driving direction, and the limiting device 1 shields the accommodating cavity 101 by the support slope 111 and the sliding slope 112.

[0096] In the embodiment, the sliding slope 112 is provided with a roller on the side away from the support slope 111. The sliding slope 112 is supported against the battery replacement platform body 10 by the roller, and the roller slides on the battery replacement platform body 10, so that the sliding slope 112 is arranged to be slidably connected to the battery replacement platform body 10. The roller facilitates the sliding of the sliding slope 112 on the battery replacement platform body 10, and the stability is higher.

[0097] In the embodiment, the sliding path of the sliding slope 112 corresponds to a sliding groove 102 provided on the battery replacement platform body 10, and the sliding groove 102 is in communication with the accommodating cavity 101. After the flexible cavity 21 is deflated, the sliding slope 112 and the supporting slope 111 are accommodated in the sliding groove 102 and the accommodating cavity 101, so that the upper surfaces of the sliding slope 112 and the supporting slope 111 are flush with the upper surface of the battery replacement platform body 10. The sliding slope 112 slides in the sliding groove 102 through a roller, and the sliding groove 102 can limit the sliding of the sliding slope 112, effectively avoiding the deviation and misalignment of the sliding slope 112 during sliding, and greatly improving the stability of the wheel positioning device. At the same time, the space of the sliding groove 102 and the accommodating cavity 101 is used to accommodate the sliding slope 112 and the supporting slope 111, so that the deflation of the flexible cavity 21 drives the limiting piece to rotate downward, so that the upper surface of the limiting device 1 can be flush with the upper surface of the battery replacement platform body 10, and the vehicle passing through the limiting device 1 has no bumping feeling, and the experience is best.

[0098] In the embodiment, the two limiting pieces are respectively a front limiting piece 11 and a rear limiting piece 12, and the supporting slope 111 and the sliding slope 112 of the rear limiting piece 12 and the supporting slope 111 and the sliding slope 112 of the front limiting piece 11 are sequentially arranged on the battery replacement platform body 10 along the driving direction of the vehicle, and the two flexible cavities 21 are connected with the two supporting slopes 111. The front limiting piece 11 is used to limit the forward movement trend of the wheels of the vehicle through the supporting slope 111, and the rear limiting piece 12 is used to limit the backward movement trend of the wheels of the vehicle through the sliding slope 112. The front limiting piece 11 and the rear limiting piece 12 are arranged on the same side of the battery replacement platform body 10, which is convenient to install and set; and the wheels of the vehicle are limited through the supporting slope 111 of the front limiting piece 11 and the sliding slope 112 of the rear limiting piece 12, so that accurate positioning is achieved and displacement of the vehicle during battery replacement is avoided.

[0099] In one embodiment, the sliding slope 112 of the rear limiting piece 12 is provided with a ball or a roller. When positioning the wheels, the sliding slope 112 of the rear limiting piece 12 is used to limit the backward movement trend of the wheels of the vehicle. The ball or the roller facilitates the movement of the wheels on the sliding slope 112, and facilitates the adjustment of the wheels to achieve accurate positioning. Of course, the supporting slope 111 of the front limiting piece 11 can also be provided with a ball or a roller. When positioning the wheels, the supporting slope 111 of the front limiting piece 11 is used to limit the forward movement trend of the wheels of the vehicle. The ball or the roller facilitates the movement of the wheels on the supporting slope 111, and facilitates the adjustment of the wheels to achieve accurate positioning.

[0100] In other embodiments, the sliding slope 112 of the rear limiting member 12 has a roller with an axis perpendicular to the driving direction of the vehicle. When positioning the wheel, the sliding slope 112 of the rear limiting member 12 is used to limit the tendency of the wheel of the vehicle to move backwards. The roller with an axis perpendicular to the driving direction of the vehicle facilitates the wheel to move forward and backward on the sliding slope 112, which is convenient for adjusting the wheel to achieve accurate positioning. Of course, the supporting slope 111 of the front limiting member 11 can also have a roller with an axis perpendicular to the driving direction of the vehicle. When positioning the wheel, the supporting slope 111 of the front limiting member 11 is used to limit the tendency of the wheel of the vehicle to move forwards. The roller with an axis perpendicular to the driving direction of the vehicle facilitates the wheel to move forward and backward on the supporting slope 111, which is convenient for adjusting the wheel to achieve accurate positioning.

[0101] The cross section of the limiting member in the front-rear direction of the vehicle is triangular. The side of the limiting member protruding from the upper surface of the battery replacement platform body 10 is inclined, which has a limiting effect on the wheel through the inclined side. At the same time, the supporting slope 111 is facilitated to rotate downward when the wheel passes through the limiting member, which is very convenient to use.

[0102] In the embodiment, the limiting device 1 further comprises two positioning members 13, both of which are used to be installed on the battery replacement platform body 10 and protrude from the upper surface of the battery replacement platform body 10. The two positioning members 13 are respectively used to limit the two tendencies of the wheel of the vehicle to move left and right, so that the wheel of the vehicle is limited between the two positioning members 13. By limiting the two tendencies of the wheel of the vehicle to move left and right through the two positioning members 13, and limiting the two tendencies of the wheel of the vehicle to move forward and backward through the two limiting members, the tendencies of the wheel to move in all directions are limited, which greatly improves the accurate positioning of the vehicle and avoids displacement of the vehicle during battery replacement operation.

[0103] In one embodiment, the limiting device 1 is installed at a position corresponding to the parking position of the front wheel of the vehicle. In another embodiment, the limiting device 1 can be installed at a position corresponding to the parking position of the rear wheel of the vehicle. Of course, the number of limiting devices 1 can be multiple, and the multiple limiting devices 1 are respectively installed at positions corresponding to the parking positions of the front and rear wheels of the vehicle.

[0104] Embodiment 2

[0105] As shown in Figure 8 The embodiment of the present application also discloses a vehicle positioning control method, which is used for the battery replacement platform as described above. The vehicle positioning control method comprises the following steps:

[0106] Step 101, before the vehicle drives into the battery replacement position of the battery replacement platform body 10, deflate the flexible cavity 21 of the rear limiting piece 12 corresponding to the front wheel parking position to drive the inclination angle between the support slope 111 of the rear limiting piece 12 and the battery replacement platform body 10 to be smaller, so that the vehicle passes over the rear limiting piece 12; inflate or keep inflated the flexible cavity 21 of the front limiting piece 11 corresponding to the front wheel parking position, so that the inclination angle between the support slope 111 of the front limiting piece 11 and the battery replacement platform body 10 becomes larger, and the forward movement tendency of the vehicle is limited.

[0107] In one embodiment, the wheel positioning device is installed at a position corresponding to the front wheel parking of the vehicle. Before the front wheel of the vehicle drives into the corresponding front wheel parking position, the flexible cavity 21 connected with the rear limiting piece 12 is controlled to be deflated, the overall volume of the flexible cavity 21 becomes smaller, the sliding slope 112 moves towards the direction away from the support slope 111, and the support slope 111 is turned downward on the battery replacement platform body 10 by rotating the end part, thereby reducing the height of the rear limiting piece 12 protruding from the upper surface of the battery replacement platform body 10, so that when the front wheel of the vehicle drives into the wheel positioning device by passing over the rear limiting piece 12, the bumping feeling is effectively reduced, and the experience is good. At the same time, the flexible cavity 21 of the front limiting piece 11 is inflated or kept inflated, the overall volume of the flexible cavity 21 becomes larger or remains large, and the height of the front limiting piece 11 protruding from the upper surface of the battery replacement platform body 10 is kept, so that the forward movement tendency of the vehicle is limited, and the front wheel of the vehicle is accurately positioned. The positioning of the vehicle is realized by inflating or keeping inflated the flexible cavity 21, and whether the positioning is realized is judged according to whether the flexible cavity 21 reaches force balance. During the positioning process, the gas can absorb part of the force by volume compression, so that the acting force of the front limiting piece 11 on the wheel is softer and is not easy to produce impact, thereby greatly improving the experience of the passengers in the vehicle; the flexible cavity 21 has the advantages of simple control, good flexibility and high stability, and effectively realizes the accurate positioning of the front wheel of the vehicle; at the same time, the flexible cavity 21 is used as the driving component 2, which occupies less space when not inflated, has simple structure and low cost.

[0108] The vehicle positioning control method further comprises step 102:

[0109] Step 102, after the vehicle reaches the battery replacement position of the battery replacement platform body 10, inflate the flexible cavity 21 of the rear limiting piece 12 corresponding to the front wheel parking position to drive the inclination angle between the support slope 111 of the rear limiting piece 12 and the battery replacement platform body 10 to be larger, and position the front wheel.

[0110] In this step, the positioning of the vehicle is achieved by inflating the flexible cavity 21 of the rear limiting part 12, and whether the positioning is achieved is judged according to whether the flexible cavity 21 reaches force balance. During the positioning process, the gas can absorb part of the force through volume compression, so that the force of the rear limiting part 12 on the vehicle wheel is softer and is not easy to produce impact, which greatly improves the experience of the passengers in the vehicle. The overall volume of the flexible cavity 21 increases, so that the sliding slope 112 moves towards the direction close to the supporting slope 111, and the supporting slope 111 is upwardly rotated on the battery replacement platform body 10 through the rotating end portion, the height of the rear limiting part 12 protruding from the upper surface of the battery replacement platform body 10, and the front limiting part 11 always maintains the height of protruding from the upper surface of the battery replacement platform body 10. The front limiting part 11 and the rear limiting part 12 are respectively used for limiting the two movement trends of the vehicle wheels forward and backward, so that the vehicle wheels are limited between the front limiting part 11 and the rear limiting part 12, to ensure that the front wheels of the vehicle do not shift during the battery replacement operation, which has the advantages of simple control, good flexibility and high stability, realizes accurate positioning of the front wheels of the vehicle, and avoids displacement of the vehicle during the battery replacement operation.

[0111] The vehicle positioning control method further includes step 103:

[0112] Step 103, before the vehicle drives out of the battery replacement platform body 10, the flexible cavity 21 of the front limiting part 11 and the rear limiting part 12 corresponding to the front wheel parking place is deflated to drive the inclination angle between the supporting slope 111 of the front limiting part 11 and the rear limiting part 12 and the battery replacement platform body 10 to be smaller, so that the vehicle passes through the front limiting part 11 and the rear limiting part 12.

[0113] In this step, the flexible cavity 21 connected with the front limiting part 11 and the rear limiting part 12 is deflated, the overall volume of the flexible cavity 21 becomes smaller, the sliding slope 112 moves towards the direction away from the supporting slope 111, and the supporting slope 111 is downwardly rotated on the battery replacement platform body 10 through the rotating end portion, thereby reducing the height of the front limiting part 11 and the rear limiting part 12 protruding from the upper surface of the battery replacement platform body 10, so that when the front wheels and the rear wheels of the vehicle drive through the front limiting part 11 and the rear limiting part 12 corresponding to the front wheel parking place, the bumping feeling is effectively reduced, and the experience is good. At the same time, by reducing the height of the rear limiting part 12 protruding from the upper surface of the battery replacement platform body 10, when the front wheels of the next vehicle drive through the rear limiting part 12 and enter the vehicle wheel positioning device, the bumping feeling is effectively reduced, the experience is good, the occupied space is smaller, the structure is simple, and the cost is low.

[0114] As shown in FIG. 1, Figure 9 The vehicle positioning control method further includes step 104:

[0115] Step 104, before the vehicle enters the battery replacement position of the battery replacement platform body 10, deflate the flexible cavity 21 connected with the front limiting piece 11 and the rear limiting piece 12 of the corresponding rear wheel parking position, so as to drive the inclination angle between the support slope 111 of the front limiting piece 11 and the rear limiting piece 12 and the battery replacement platform body 10 to be smaller, so that the vehicle passes through the rear limiting piece 12 and the front limiting piece 11.

[0116] In another embodiment, the wheel positioning device is installed at the position corresponding to the rear wheel parking of the vehicle. Deflate the flexible cavity 21 connected with the front limiting piece 11 and the rear limiting piece 12, the overall volume of the flexible cavity 21 becomes smaller, the sliding slope 112 moves towards the direction away from the support slope 111, and the support slope 111 rotates downward on the battery replacement platform body 10 through the rotating end, thereby reducing the height of the front limiting piece 11 and the rear limiting piece 12 protruding from the upper surface of the battery replacement platform body 10, so that when the front wheels of the vehicle pass through the front limiting piece 11 and the rear limiting piece 12 of the corresponding rear wheel parking position, the bumping feeling is effectively reduced, and the experience is good; at the same time, so that when the rear wheels of the vehicle pass through the rear limiting piece 12 of the corresponding rear wheel parking position, the bumping feeling is effectively reduced, the experience is good, the occupied space is smaller, the structure is simple, and the cost is low.

[0117] The vehicle positioning control method further comprises step 105:

[0118] Step 105, after the vehicle reaches the battery replacement position of the battery replacement platform body 10, inflate the flexible cavity 21 of the front limiting piece 11 and the rear limiting piece 12 of the corresponding rear wheel parking position, so as to drive the inclination angle between the support slope 111 of the front limiting piece 11 and the rear limiting piece 12 and the battery replacement platform body 10 to be larger, and position the vehicle.

[0119] In this step, the inflation of the flexible cavity 21 connected with the front limiting piece 11 and the rear limiting piece 12 realizes the positioning of the vehicle, and whether the positioning is realized is judged according to whether the flexible cavity 21 reaches force balance. During the positioning process, the gas can absorb part of the force through volume compression, so that the force of the front limiting piece 11 and the rear limiting piece 12 on the wheels is softer and is not easy to produce impact, greatly improving the experience of the passengers in the vehicle. The overall volume of the flexible cavity 21 becomes larger, the sliding slope 112 moves towards the direction close to the support slope 111, and the support slope 111 rotates upward on the battery replacement platform body 10 through the rotating end, and the height of the front limiting piece 11 and the rear limiting piece 12 protruding from the upper surface of the battery replacement platform body 10. The front limiting piece 11 and the rear limiting piece 12 are respectively used for limiting the forward movement and backward movement of the rear wheels of the vehicle, so that the rear wheels of the vehicle are positioned between the front limiting piece 11 and the rear limiting piece 12, so as to ensure that the rear wheels of the vehicle do not shift during the battery replacement operation, which has the advantages of simple control, good flexibility and high stability, realizes the accurate positioning of the rear wheels of the vehicle, and avoids the displacement of the vehicle during the battery replacement operation.

[0120] The vehicle positioning control method further comprises step 106:

[0121] Step 106: Before the vehicle drives out of the battery replacement position of the battery replacement platform body 10, the flexible cavity 21 of the front limiting piece 11 and the rear limiting piece 12 corresponding to the rear wheel parking place is deflated to drive the inclination angle between the support slope 111 of the front limiting piece 11 and the rear limiting piece 12 and the battery replacement platform body 10 to be smaller, so that the vehicle passes through the rear limiting piece 12 and the front limiting piece 11.

[0122] In this step, the flexible cavity 21 connected with the front limiting piece 11 and the rear limiting piece 12 is deflated, the overall volume of the flexible cavity 21 becomes smaller, the sliding slope 112 moves towards the direction away from the support slope 111, and the support slope 111 rotates downward on the battery replacement platform body 10 through the rotating end, thereby reducing the height of the front limiting piece 11 and the rear limiting piece 12 protruding from the upper surface of the battery replacement platform body 10, so that when the vehicle rear wheel drives through the front limiting piece 11 corresponding to the rear wheel parking place, the bumping feeling is effectively reduced, and the experience is good; At the same time, in order to drive the front wheel of the next vehicle through the front limiting piece 11 and the rear limiting piece 12 corresponding to the rear wheel parking place, and the rear wheel of the next vehicle through the rear limiting piece 12 corresponding to the rear wheel parking place, the bumping feeling is effectively reduced, the experience is good, the occupied space is smaller, the structure is simple, and the cost is low.

[0123] Although the specific embodiments of the present application are described above, those skilled in the art should understand that this is only an example, the protection scope of the present application is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present application, and these changes and modifications all fall within the protection scope of the present application.

Claims

1. A wheel positioning device for a battery swapping platform in a battery swapping station, characterized in that, It includes: The limiting device includes two limiting members, both of which are rotatably connected to the battery swapping platform body through rotating ends and protrude from the upper surface of the battery swapping platform body. The two limiting members are used to limit the two movement trends of the vehicle's wheels, namely forward and backward, so that the vehicle's wheels are limited between the two limiting members. The limiting member includes a sliding inclined surface and a supporting inclined surface that are rotatably connected. The rotating end is located on the side of the supporting inclined surface away from the sliding inclined surface and is rotatably connected to the battery swapping platform body. The side of the sliding inclined surface away from the supporting inclined surface is slidably connected to the battery swapping platform body; and... The drive assembly includes two flexible cavities, each connected to a limiting member. Inflating or deflating the flexible cavities causes the limiting members to rotate along their rotating ends, changing the inclination angle between the supporting inclined surface and the sliding inclined surface and the battery swapping platform body. This pushes the sliding inclined surface forward away from the supporting inclined surface, reducing the height of the limiting members protruding from the upper surface of the battery swapping platform body when a vehicle passes over them. When the flexible cavities are inflated or deflated, the sliding inclined surfaces of the two limiting members slide in the same or opposite directions.

2. The wheel alignment device as described in claim 1, characterized in that, The two limiting members are a front limiting member and a rear limiting member, which are arranged one after the other on the upper surface of the battery swapping platform body along the vehicle's driving direction. The two flexible cavities are respectively connected to the supporting inclined surface of the front limiting member and the supporting inclined surface of the rear limiting member; The supporting inclined surface of the front limiting member is close to the sliding inclined surface of the rear limiting member. When the flexible cavity is inflated or deflated, the sliding inclined surfaces of the front limiting member and the rear limiting member slide in the same direction; or, the supporting inclined surface of the front limiting member is close to the supporting inclined surface of the rear limiting member. When the flexible cavity is inflated or deflated, the sliding inclined surfaces of the front limiting member and the rear limiting member slide in opposite directions.

3. The wheel alignment device as described in claim 1 or 2, characterized in that, After the flexible cavity is vented, the upper surface of the limiting device is located on the same plane as the upper surface of the battery swapping platform body.

4. The wheel alignment device as described in claim 1, characterized in that, The sliding inclined surface is provided with a roller on the side away from the supporting inclined surface; And / or, the cross-section of the limiting member along the front-rear direction of the vehicle is triangular.

5. The wheel alignment device as described in claim 1, characterized in that, The battery swapping platform body has a recessed receiving cavity at the installation position corresponding to the flexible cavity, which is used to accommodate the flexible cavity after it has been deflated. And / or, the battery swapping platform body is provided with a sliding groove corresponding to the sliding path of the sliding inclined surface, and the sliding groove is connected to the receiving cavity; After the flexible cavity is deflated, the sliding inclined surface and the supporting inclined surface are received in the groove and the receiving cavity, so that the upper surfaces of the sliding inclined surface and the supporting inclined surface are flush with the upper surface of the battery swapping platform body.

6. The wheel alignment device as described in claim 1, characterized in that, The two limiting members are a front limiting member and a rear limiting member. The supporting inclined surface and the sliding inclined surface of the rear limiting member and the supporting inclined surface and the sliding inclined surface of the front limiting member are sequentially arranged on the battery swapping platform body along the vehicle travel direction. The two flexible cavities are respectively connected to the two supporting inclined surfaces. The front limiting member uses the supporting inclined surface to limit the forward movement of the vehicle's wheels, and the rear limiting member uses the sliding inclined surface to limit the backward movement of the vehicle's wheels.

7. A battery swapping platform, characterized in that, It includes a wheel positioning device as described in any one of claims 1-6, wherein the limiting device is installed at the position where the wheels of the corresponding vehicle are parked.

8. A vehicle positioning control method, characterized in that, It is used in the battery swapping platform as described in claim 7, wherein the vehicle positioning control method includes the following steps: Before the vehicle enters the battery swapping platform body, the flexible cavity of the rear limit member corresponding to the front wheel docking position is deflated to drive the tilt angle between the supporting slope of the rear limit member and the battery swapping platform body to decrease, so that the vehicle can pass the rear limit member. The flexible cavity of the front limiting member at the corresponding front wheel docking point is inflated or kept inflated, so that the tilt angle between the supporting inclined surface of the front limiting member and the battery swapping platform body increases, thereby limiting the forward movement trend of the vehicle.

9. The vehicle positioning control method as described in claim 8, characterized in that, After the vehicle reaches the battery swapping platform body, the flexible cavity of the rear limiting member corresponding to the front wheel docking position is inflated to drive the tilt angle between the supporting inclined surface of the rear limiting member and the battery swapping platform body to increase, thereby positioning the front wheel. And / or, the vehicle positioning control method further includes: Before the vehicle leaves the battery swapping platform body, the flexible cavities of the front limit member and the rear limit member corresponding to the front wheel docking position are deflated to drive the tilt angle between the supporting slope of the front limit member and the rear limit member and the battery swapping platform body to decrease, so that the vehicle can pass over the front limit member and the rear limit member.

10. The vehicle positioning control method as described in claim 8 or 9, characterized in that, The vehicle positioning control method further includes: Before the vehicle enters or exits the battery swapping platform body, the flexible cavities of the front and rear limit members at the corresponding rear wheel parking positions are deflated to drive the tilt angle between the supporting slopes of the front and rear limit members and the battery swapping platform body to decrease, so that the vehicle can pass over the rear and front limit members.

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