A vehicle battery swapping station, battery swapping system and method

Abstract

The present invention relates to the technical field of vehicle battery swapping, and in particular, to a vehicle battery swapping station, a battery swapping system and a method. The vehicle battery swapping station includes a charging bin, a plurality of spare battery boxes, and a battery swapping component. The plurality of spare battery boxes are detachably connected inside the charging bin, and the battery swapping component is detachably connected to the charging bin. The battery swapping component includes: a transverse movement unit slidably connected to the charging bin in the horizontal direction; a longitudinal movement unit slidably connected to the transverse movement unit in the horizontal direction, and the movement direction of the longitudinal movement unit intersects with the movement direction of the transverse movement unit; a hoisting trolley detachably connected to the longitudinal movement unit; and a swinging unit detachably connected to the transverse movement unit, and the swinging unit drives the longitudinal movement unit to rotate around the vertical axis through the transverse movement unit. In this way, the problem of inconvenient battery swapping for mining trucks is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle battery swapping, and in particular, to a vehicle battery swapping station, a battery swapping system and a method thereof. Background Art

[0002] New energy vehicles usually replenish energy by charging or battery swapping. For large vehicles, such as heavy trucks and electric wide-body mining dump trucks (hereinafter referred to as mining trucks, which are usually used for transporting minerals in mines), due to the large required power and usually high battery capacity, it is more suitable to replenish energy by battery swapping. In the battery swapping mode, the energy can be quickly replenished by replacing the battery once. Compared with the charging mode, the waiting time of the vehicle is reduced, which is beneficial to improving labor productivity.

[0003] The battery swapping method for vehicles mostly adopts the vertical lifting method, and the lifting height is relatively high. For some vehicles, such as mining trucks, there is a protective top cover above the cab of the mining truck to protect the safety of the driver. The protective top cover is located on the top of the power battery box, which will limit the vertical lifting height of the power battery box and bring inconvenience to the battery swapping work. Summary of the Invention

[0004] To solve the problem of inconvenient battery swapping for mining trucks, the present invention provides a vehicle battery swapping station, a battery swapping system and a method thereof.

[0005] In a first aspect, the present invention provides a vehicle battery swapping station, which includes a charging bin, a plurality of spare battery boxes, and a battery swapping component. The plurality of spare battery boxes are detachably connected to the inside of the charging bin, and the battery swapping component is detachably connected to the charging bin;

[0006] The battery swapping component includes:

[0007] A lateral translation unit, which is slidably connected to the charging bin in the horizontal direction;

[0008] A longitudinal translation unit, which is slidably connected to the lateral translation unit in the horizontal direction, and the moving direction of the longitudinal translation unit intersects with the moving direction of the lateral translation unit;

[0009] A hoisting trolley, which is detachably connected to the longitudinal translation unit;

[0010] A swinging unit, which is detachably connected to the lateral translation unit, and the swinging unit drives the longitudinal translation unit to rotate around the vertical axis through the lateral translation unit.

[0011] In some embodiments, the swinging unit is rotatably connected to the charging bin, the swinging unit rotates around the vertical axis, and the lateral translation unit is slidably connected to the swinging unit in the horizontal direction.

[0012] In some embodiments, the swinging unit includes a swinging frame and a driving push rod. The piston rod of the driving push rod is rotatably connected to one end of the swinging frame. The end of the swinging frame away from the driving push rod is rotatably connected to the charging bin. The swinging frame rotates around a vertical axis. The end of the driving push rod away from the swinging frame is rotatably connected to the charging bin.

[0013] In some embodiments, the transverse movement unit includes a first transverse movement rod, a second transverse movement rod, and a transverse movement driving part. The first transverse movement rod and the second transverse movement rod are slidably connected to the charging bin in the horizontal direction. The moving directions of the first transverse movement rod and the second transverse movement rod are parallel. The transverse movement driving part drives the first transverse movement rod and the second transverse movement rod to move synchronously or differentially;

[0014] The swinging unit includes an orbital frame, a first rotating shaft, and a linkage member. One end of the orbital frame is rotatably connected to the first transverse movement rod through the first rotating shaft. The first rotating shaft is vertically arranged. The linkage member is detachably connected to the end of the orbital frame away from the first rotating shaft. The linkage member is slidably connected to the second transverse movement rod in the horizontal direction. The sliding direction of the linkage member is perpendicular to the moving direction of the second transverse movement rod; The longitudinal movement unit is slidably connected to the orbital frame in the horizontal direction.

[0015] In some embodiments, the linkage member is a second rotating shaft. The second rotating shaft is rotatably connected to the orbital frame around its own axis. The second rotating shaft is vertically arranged.

[0016] In some embodiments, the hoisting trolley is slidably connected to the longitudinal movement unit. The moving direction of the hoisting trolley is parallel to the moving direction of the longitudinal movement unit.

[0017] In a second aspect, the present invention provides a vehicle battery swapping system. The vehicle battery swapping system includes an electric vehicle and the vehicle battery swapping station according to any one of the first aspect;

[0018] The electric vehicle includes a vehicle body, a cab, a bottom support assembly, a power battery box, and a protective top cover. The cab is detachably connected to one end of the vehicle body. The bottom support assembly is detachably connected to the vehicle body. The power battery box is detachably connected to the bottom support assembly. The protective top cover is detachably connected to the vehicle body. The protective top cover is located above the bottom support assembly, the power battery box, and the cab.

[0019] In a third aspect, the present invention provides a vehicle battery swapping method. The vehicle battery swapping method is applied to the vehicle battery swapping system according to any one of the second aspect. The vehicle battery swapping method includes:

[0020] Step S10, based on the preset battery swapping position of the electric vehicle at the vehicle battery swapping station, obtaining a deviation angle of the electric vehicle compared to the preset battery swapping position;

[0021] Step S20, based on the deviation angle being greater than the first threshold and less than the second threshold, adjusting the horizontal travel angle of the battery swap assembly during no-load operation until it matches the deviation angle;

[0022] Step S30, based on the adaptation of the horizontal travel angle of the battery swap assembly when running without load to the deviation angle, driving the battery swap assembly to lift the power battery box away from the electric vehicle;

[0023] Step S40, based on the battery replacement assembly, the power battery box is lifted off the electric vehicle, and the battery replacement assembly is driven to adjust the horizontal travel angle until it matches the preset placement position in the charging compartment;

[0024] Step S50, based on the horizontal travel angle of the power battery box carried by the power exchange component being compatible with the preset placement position, driving the power exchange component to place the power battery box at the preset placement position;

[0025] Step S60, based on the power battery box being located at the preset placement position, driving the battery replacement assembly to hoist the spare battery box in the charging compartment;

[0026] Step S70, based on the battery replacement assembly hoisting the backup battery box, driving the battery replacement assembly to adjust the horizontal travel angle until it matches the deviation angle;

[0027] Step S80, based on the horizontal travel angle of the battery exchange component carrying the spare battery box being adapted to the deviation angle, drive the battery exchange component to place the spare battery box on the electric vehicle.

[0028] In some embodiments, step S40 includes:

[0029] Step S41, lifting the power battery box away from the electric vehicle based on the battery replacement assembly, and driving the battery replacement assembly to adjust the position of the power battery box until the power battery box is located vertically below the transverse movement unit;

[0030] Step S42: Based on the fact that the power battery box carried by the battery exchange assembly is located vertically below the transverse movement unit, adjust the horizontal travel angle of the power battery box carried by the battery exchange assembly until it matches the preset placement position in the charging compartment.

[0031] In some embodiments, step S70 includes:

[0032] Step S71: Lift the spare battery box based on the battery swapping component, and drive the battery swapping component to adjust the position of the spare battery box until the spare battery box is vertically below the traversing unit.

[0033] Step S72: Based on the fact that the spare battery box carried by the battery swapping component is vertically below the traversing unit, adjust the horizontal traveling angle of the battery swapping component carrying the spare battery box until it matches the deviation angle.

[0034] To solve the problem of inconvenient battery swapping for mining trucks, the present invention has the following advantages:

[0035] By providing a traversing unit and a longitudinal moving unit that move horizontally, and the hoisting trolley is detachably connected to the longitudinal moving unit, it can meet the horizontal lateral and longitudinal movement of the hoisting trolley. Thus, when the mining truck enters the vehicle battery swapping station, the longitudinal moving unit drives the hoisting trolley to avoid. When the mining truck stops stably, the traversing unit and the longitudinal moving unit can drive the hoisting trolley to extend under the protective top cover of the mining truck. To adapt to the deviation angle of the mining truck after parking in the vehicle battery swapping station, a swinging unit is detachably connected to the traversing unit, and the swinging unit and the traversing unit can cooperate to drive the longitudinal moving unit to rotate a certain angle around the vertical axis. Thus, when the mining truck enters the vehicle battery swapping station, according to the parking deviation angle of the mining truck, the longitudinal moving unit can be controlled to rotate until the direction of the longitudinal moving unit matches the parking deviation angle of the vehicle, improving the operation accuracy. Then the hoisting trolley can accurately extend horizontally under the protective top cover, and the battery box can be lifted or placed, realizing the battery swapping operation for the mining truck even under the condition of height limitation. Description of the Drawings

[0036] Figure 1 Shows a top view of a vehicle battery swapping system according to an embodiment;

[0037] Figure 2 Shows a schematic diagram of a battery swapping component according to an embodiment;

[0038] Figure 3 Shows a front view of a vehicle battery swapping system according to an embodiment;

[0039] Figure 4 Shows a partial enlarged view of an embodiment of Figure 3 ;

[0040] Figure 5 Shows a partial schematic diagram of a vehicle battery swapping station according to an embodiment;

[0041] Figure 6 Shows a schematic diagram of a vehicle battery swapping station according to an embodiment;

[0042] Figure 7 Shows a schematic diagram of an electric vehicle according to an embodiment;

[0043] Figure 8 The figure shows a schematic diagram of a vehicle battery swapping method according to an embodiment.

[0044] Reference numerals: 10 charging bin; 11 frame; 12 charging seat; 20 spare battery box; 30 battery swapping assembly; 31 lateral movement unit; 311 first lateral movement rod; 312 second lateral movement rod; 313 lateral movement driving part; 314 guide groove; 32 longitudinal movement unit; 321 longitudinal movement frame; 3211 first longitudinal movement rod; 3212 second longitudinal movement rod; 322 first longitudinal movement driving unit; 33 hoisting trolley; 331 sliding vehicle body; 332 lifting tool; 34 swinging unit; 341 swinging frame; 342 driving push rod; 343 track frame; 344 first rotating shaft; 345 linkage; 3451 second rotating shaft; 40 electric vehicle; 41 vehicle body; 42 cab; 43 bottom support assembly; 44 power battery box; 45 protective top cover. Detailed implementation manners

[0045] Now, the present disclosure will be described with reference to several exemplary embodiments. It should be understood that these embodiments are described only to enable those of ordinary skill in the art to better understand and thus implement the present disclosure, rather than implying any limitation on the scope of the present disclosure.

[0046] As used herein, the term "comprising" and its variants are to be construed as open-ended terms meaning "including but not limited to". The term "based on" is to be construed as "at least partially based on". The terms "one embodiment" and "an embodiment" are to be construed as "at least one embodiment". The term "another embodiment" is to be construed as "at least one other embodiment". The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal", etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit that the indicated device, element or component must have a specific orientation, or be constructed and operated in a specific orientation. Also, in addition to being able to represent an orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present application can be understood according to specific circumstances. In addition, the terms "mounted", "arranged", "provided with", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there can be internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances. In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated device, element or component. Unless otherwise specified, the meaning of "a plurality" is two or more.

[0047] In this embodiment, during the production operation in the mining area, in order to protect the safety of the mining truck driver, a protective top cover 45 is usually provided above the mining truck cab 42, which results in the vertical lifting height being limited by the protective top cover 45 when performing the battery replacement operation on the mining truck. In addition, during the process of hoisting the mining truck battery box, if the mining truck deviates, it is not conducive to the battery replacement assembly 30 entering the area below the protective top cover 45, thereby increasing the difficulty of battery replacement. Therefore, a vehicle battery replacement station is proposed.

[0048] As Figure 1As shown in the figure, the vehicle battery swapping station may include a charging bin 10, a number of spare battery boxes 20, and a battery swapping component 30. The charging bin 10 can be horizontally fixed to the ground, and the mining truck completes the battery swapping operation within the charging bin 10. A number of spare battery boxes 20 are detachably connected to the inside of the charging bin 10, and a number of spare battery boxes 20 are electrically connected to the charging bin 10, so that the charging bin 10 can charge the spare battery boxes 20. The battery swapping component 30 is detachably connected to the charging bin 10. The battery swapping component 30 can grab the spare battery box 20 to swap the battery for the mining truck.

[0049] As Figure 2 shown, the battery swapping component 30 may include a transverse movement unit 31, a longitudinal movement unit 32, a hoisting trolley 33, and a swinging unit 34.

[0050] The transverse movement unit 31 can be slidably connected to the charging bin 10 in the horizontal direction, so as to realize the reciprocating movement of the transverse movement unit 31 in one direction in the horizontal direction.

[0051] The longitudinal movement unit 32 can be slidably connected to the transverse movement unit 31 in the horizontal direction, so as to realize the reciprocating movement of the longitudinal movement unit 32 in another direction in the horizontal direction. The moving direction of the longitudinal movement unit 32 can intersect with the moving direction of the transverse movement unit 31, so as to realize the movement of the longitudinal movement unit 32 within a set area range on the horizontal plane. The setting of the size of the area range is not limited and can be flexibly selected according to the actual situation. Through the settings of the transverse movement unit 31 and the longitudinal movement unit 32, when the mining truck enters the vehicle battery swapping station, the longitudinal movement unit 32 drives the hoisting trolley 33 to avoid, and when the mining truck stops stably, the transverse movement unit 31 and the longitudinal movement unit 32 can drive the hoisting trolley 33 to extend under the protective top cover 45 of the mining truck, so as to smoothly carry out the battery swapping operation.

[0052] The hoisting trolley 33 can be detachably connected to the longitudinal movement unit 32 and can move together with the longitudinal movement unit 32, so as to meet the movement of the hoisting trolley 33 within a set area range on the horizontal plane.

[0053] The swinging unit 34 can be detachably connected to the transverse movement unit 31, so that the swinging unit 34 can slide along one direction in the horizontal direction following the transverse movement unit 31. The swinging unit 34 and the transverse movement unit 31 cooperate to drive the longitudinal movement unit 32 to rotate around the vertical axis, so as to change the deflection angle of the longitudinal movement unit 32 in the horizontal direction. When the electric vehicle 40 drives into the vehicle battery swapping station, the deflection angle of the longitudinal movement unit 32 in the horizontal direction can be adjusted by the swinging unit 34 to match the deflection angle of the electric vehicle 40, and then the transverse movement unit 31 and the longitudinal movement unit 32 can be adjusted, so as to extend the hoisting trolley 33 under the protective top cover 45 of the electric vehicle 40 and carry out the battery swapping operation.

[0054] In some other embodiments, as Figure 1As shown in the figure, the charging bin 10 may include a frame 11 and a charging base 12. The frame 11 is fixed to the ground and can provide a fixed position for the battery swapping component 30. The charging base 12 may be detachably connected to the frame 11, the charging base 12 may be detachably connected to the spare battery box 20, the charging base 12 may be electrically connected to the spare battery box 20, and the number of the charging bases 12 may match the number of the spare battery boxes 20, so as to charge the spare battery box 20 through the charging base 12.

[0055] In this embodiment, as Figure 2 shown, the swing unit 34 is rotatably connected to the charging bin 10. The swing unit 34 rotates around the vertical axis, so that the swing unit 34 can rotate within a set range along the horizontal plane. The transverse movement unit 31 may be slidably connected to the swing unit 34 along the horizontal direction, so as to adjust the deflection angle of the transverse movement unit 31 in the horizontal direction, and further adjust the deflection angle of the transverse movement unit 31 in the horizontal direction, so as to adapt to the offset angle of the mining truck after entering the vehicle battery swapping station, and improve the docking accuracy between the hoisting trolley 33 and the mining truck during the battery swapping process. The specific driving form of the sliding connection between the transverse movement unit 31 and the swing unit 34 is not limited and can be flexibly selected according to the actual situation. For example, it may be cylinder driving, rack and pinion driving, etc.

[0056] In this embodiment, as Figure 2 shown, the swing unit 34 may include a swing frame 341 and a driving push rod 342. The piston rod of the driving push rod 342 may be rotatably connected to one end of the swing frame 341. The end of the swing frame 341 away from the driving push rod 342 may be rotatably connected to the charging bin 10. The swing frame 341 can rotate around the vertical axis. The end of the driving push rod 342 away from the swing frame 341 may be rotatably connected to the charging bin 10. Thus, the swing frame 341 can be driven by the driving push rod 342 to rotate around the vertical axis at the rotation connection between the swing frame 341 and the charging bin 10. One end of the swing frame 341 is rotatably connected to the charging bin 10, and the other end is rotatably connected to the piston rod of the driving push rod 342, so that the rotation lever arm is longer, the rotation is more labor-saving, and it is more convenient for the swing unit 34 to drive the transverse movement unit 31 and the longitudinal movement unit 32 to rotate.

[0057] In this embodiment, as Figure 5 、 Figure 6As shown, the lateral translation unit 31 may include a first lateral translation rod 311, a second lateral translation rod 312, and a lateral translation driving part 313. Both the first lateral translation rod 311 and the second lateral translation rod 312 may be drivingly connected to the lateral translation driving part 313. The first lateral translation rod 311 and the second lateral translation rod 312 may be slidably connected to the charging bin 10 in the horizontal direction. The moving directions of the first lateral translation rod 311 and the second lateral translation rod 312 are parallel, so that both the first lateral translation rod 311 and the second lateral translation rod 312 can slide along the horizontal direction of the charging bin 10. The specific driving method of the sliding connection between the first lateral translation rod 311, the second lateral translation rod 312 and the charging bin 10 is not limited and can be flexibly selected according to the actual situation. For example, it can be a gear-rack drive, a cylinder drive, etc. The lateral translation driving part 313 can drive the first lateral translation rod 311 and the second lateral translation rod 312 to move synchronously. When the lateral translation driving part 313 drives the first lateral translation rod 311 and the second lateral translation rod 312 to move synchronously, the displacement of the lateral translation unit 31 in the horizontal plane along the direction of the first lateral translation rod 311 or the second lateral translation rod 312 can be adjusted, and then the displacement of the longitudinal translation unit 32 and the hoisting trolley 33 in the horizontal plane along the direction of the first lateral translation rod 311 or the second lateral translation rod 312 can be adjusted.

[0058] The swing unit 34 may include an orbital frame 343, a first rotating shaft 344, and a linkage 345. The orbital frame 343 may be a rigid structural frame, which can be used to transmit torque and can provide guidance and support for the sliding of the longitudinal movement unit 32. One end of the orbital frame 343 may be rotatably connected to the first transverse movement rod 311 through the first rotating shaft 344. The first rotating shaft 344 is vertically arranged. One end of the linkage 345 may be detachably connected to the end of the orbital frame 343 away from the first rotating shaft 344. The other end of the linkage 345 may be slidably connected to the second transverse movement rod 312 in the horizontal direction. The sliding direction of the linkage 345 is perpendicular to the moving direction of the second transverse movement rod 312. A guiding groove 314 may be provided on the second transverse movement rod 312. The linkage 345 may slide along the length direction of the guiding groove 314 within the guiding groove 314. The width of the guiding groove 314 matches the shaft diameter of the linkage 345. The transverse movement driving part 313 may drive the first transverse movement rod 311 and the second transverse movement rod 312 to move differentially. When the transverse movement driving part 313 drives the first transverse movement rod 311 and the second transverse movement rod 312 to move differentially, the second transverse movement rod 312 will drive the linkage 345 to move along the moving direction of the second transverse movement rod 312. At the same time, due to the constant distance between the first rotating shaft 344 and the linkage 345, during the movement of the second transverse movement rod 312, the distance between the first rotating shaft 344 and the linkage 345 in the length direction of the guiding groove 314 changes accordingly. Through the setting of the guiding groove 314, the distance change between the first rotating shaft 344 and the linkage 345 in the length direction of the guiding groove 314 can be adapted. Therefore, when the first transverse movement rod 311 and the second transverse movement rod 312 move differentially, the orbital frame 343 can be driven by the connecting member to rotate around the first rotating shaft 344 in the horizontal plane. The length of the guiding groove 314 is not limited and can be flexibly selected according to actual situations. The manner in which the transverse movement driving part 313 drives the first transverse movement rod 311 and the second transverse movement rod 312 to move synchronously is not limited and can be flexibly selected according to actual situations. For example, two cylinders may be used to drive the first transverse movement rod 311 and the second transverse movement rod 312 to move respectively, or two output shafts may be provided and the first transverse movement rod 311 and the second transverse movement rod 312 may be driven to move by means of gear-rack connection respectively. The longitudinal movement unit 32 may be slidably connected to the orbital frame 343 in the horizontal direction, so that the longitudinal movement unit 32 can reciprocate in one direction in the horizontal direction. Thus, when the mining truck enters the vehicle swapping station, the longitudinal movement unit 32 can drive the hoisting trolley 33 to avoid. After the mining truck stops stably, the hoisting trolley 33 can be driven by the transverse movement unit 31 and the longitudinal movement unit 32 to extend under the protective top cover 45 of the mining truck, so as to smoothly perform the power swapping operation. The manner in which the linkage 345 is detachably connected to the second transverse movement rod 312 is not limited and can be flexibly selected according to actual situations.

[0059] In other embodiments, such as Figure 2As shown, the longitudinal movement unit 32 may include a longitudinal movement frame 321 and a first longitudinal movement driving unit 322. The hoisting trolley 33 may be detachably connected to the longitudinal movement frame 321. The first longitudinal movement driving unit 322 may drive the longitudinal movement unit 32 to reciprocate in one direction on a horizontal plane. The longitudinal movement frame 321 may include a first longitudinal movement rod 3211 and a second longitudinal movement rod 3212. One side of the hoisting trolley 33 is detachably connected to the first longitudinal movement rod 3211, and the other side of the hoisting trolley 33 is detachably connected to the second longitudinal movement rod 3212, thereby increasing the reliability of the connection between the hoisting trolley 33 and the longitudinal movement frame 321. By arranging the hoisting trolley 33 between the first longitudinal movement rod 3211 and the second longitudinal movement rod 3212, the longitudinal movement frame 321 and the hoisting trolley 33 partially overlap in the horizontal height, so that the utilization rate of the vertical height can be saved, and further play a role in saving the height space.

[0060] In this embodiment, as Figure 5 、 Figure 6 shown, the linkage member 345 may be a second rotating shaft 3451. The second rotating shaft 3451 may be rotatably connected to the track frame 343 around its own axis. The second rotating shaft 3451 may be vertically arranged. By setting the linkage member 345 as the second rotating shaft 3451, when the first transverse movement rod 311 and the second transverse movement rod 312 move at a differential speed, the second rotating shaft 3451 can rotate around the first rotating shaft 344 and the second rotating shaft 3451 can rotate by itself, thereby converting the sliding friction between the linkage member 345 and the second transverse movement rod 312 into rolling friction, reducing the friction loss, and improving the stability of the operation of the overall device.

[0061] In this embodiment, as Figure 2 shown, the hoisting trolley 33 is slidably connected to the longitudinal movement unit 32, and the moving direction of the hoisting trolley 33 is parallel to the moving direction of the longitudinal movement unit 32. On the one hand, the longitudinal movement unit 32 is slidably connected to the transverse movement unit 31, and the longitudinal movement unit 32 can reciprocate in one direction on a horizontal plane relative to the transverse movement unit 31; on the other hand, the hoisting trolley 33 is slidably connected to the longitudinal movement unit 32, and the hoisting trolley 33 moves relative to the longitudinal movement unit 32 in a direction parallel to the moving direction of the longitudinal movement unit 32. Thus, the hoisting trolley 33 has a greater stroke in the length direction of the longitudinal movement frame 321, facilitating more flexible adjustment of its own position, thereby improving the convenience of hoisting.

[0062] In other embodiments, as Figure 3 、 Figure 4As shown in the figure, the hoisting trolley 33 may include a sliding vehicle body 331 and a lifting device 332. The sliding vehicle body 331 is slidably connected to the longitudinal movement unit 32. On the one hand, the sliding vehicle body 331 can reciprocate in one direction along the longitudinal movement unit 32. On the other hand, the sliding vehicle body 331 can move together with the longitudinal movement unit 32. The lifting device 332 can be used to grab the power battery box 44 with depleted power on the mining truck or the spare battery box 20 in the charging bin 10.

[0063] In this embodiment, a vehicle battery swapping system is provided. The vehicle battery swapping system includes the vehicle battery swapping station of any one of the above embodiments. As shown in FIG. 3, the vehicle battery swapping system may further include an electric vehicle 40.

[0064] As Figure 7 shown, the electric vehicle 40 may include a vehicle body 41, a cab 42, a bottom support assembly 43, a power battery box 44, and a protective top cover 45. The vehicle body 41 can perform the functions of driving and carrying goods. The driver can operate the electric vehicle 40 in the cab 42. The cab 42 is detachably connected to one end of the vehicle body 41, so that it is convenient to load goods at the end of the vehicle body 41 away from the cab 42. The bottom support assembly 43 is detachably connected to the vehicle body 41, and the power battery box 44 is detachably connected to the bottom support assembly 43. The power battery box 44 can provide energy for the electric vehicle 40 to travel. The bottom support assembly 43 can be used to fix the power battery box 44 and be electrically connected to the power battery box 44, so that the power battery box 44 can supply power to the electric vehicle 40. The protective top cover 45 is detachably connected to the vehicle body 41, and the protective top cover 45 is located above the bottom support assembly 43, the power battery box 44, and the cab 42, so as to protect the safety of the driver and protect the power battery box 44 from being damaged during the operation of the electric vehicle 40. Since there are strict requirements for the height of the hoisting trolley 33 in the vertical direction during the battery swapping operation of the mining truck, many spare battery boxes 20 in the charging bin 10 are also arranged at the same horizontal height as much as possible, which will increase the moving range of the hoisting trolley 33 in the horizontal direction, so that the hoisting trolley 33 can replace the horizontally arranged spare battery boxes 20 onto the mining truck under the condition of strict height control. Furthermore, since the large-range movement of the hoisting trolley 33 in the horizontal direction depends on the transverse movement frame and the longitudinal movement frame 321 with larger horizontal dimensions, in order to conveniently adjust the deflection angle of the hoisting trolley 33, the combination scheme of the driving push rod 342 and the swing frame 341 in one of the above embodiments, or the combination scheme of the track frame 343, the first rotating shaft 344, the linkage member 345, and the guide groove 314 in one of the above embodiments can achieve a more labor-saving effect and complete the efficient battery swapping of the mining truck. Compared with the traditional crane rotating mechanism, the various embodiments of the swing unit 34 of the present invention have the technical effects of low height space occupation, labor saving, and low cost.

[0065] A vehicle battery replacement method is applied to the vehicle battery replacement system of any of the above embodiments, such as Figure 8 As shown, the vehicle battery replacement method may include:

[0066] Step S10, based on the preset battery swapping position of the electric vehicle 40 at the vehicle battery swapping station, the deviation angle of the electric vehicle 40 compared to the preset battery swapping position can be obtained, and the relationship between the deviation angle of the electric vehicle 40 and the first threshold and the second threshold can be determined. Among them, when the deviation angle of the electric vehicle 40 is less than or equal to the first threshold, the power battery box 44 can be grabbed without adjusting the horizontal travel angle of the battery swapping component 30 when it is running at no load; when the deviation angle of the electric vehicle 40 is greater than the first threshold and less than the second threshold, the power battery box 44 can be grabbed by adjusting the horizontal travel angle of the battery swapping component 30 when it is running at no load; when the deviation angle of the electric vehicle 40 is greater than or equal to the second threshold, the power battery box 44 cannot be grabbed only by adjusting the horizontal travel angle of the battery swapping component 30 when it is running at no load.

[0067] Step S20, based on the deviation angle being greater than the first threshold and less than the second threshold, adjust the horizontal travel angle of the battery exchange assembly 30 during no-load operation until it matches the deviation angle, thereby facilitating the lifting of the power battery box 44.

[0068] Step S30, based on the adaptation of the horizontal travel angle and the deviation angle of the battery exchange component 30 when it is running at no load, the lifting trolley 33 can be moved to the top of the power battery box 44. When the lifting trolley 33 moves to the top of the power battery box 44, the lifting trolley 33 is located below the protective top cover 45. Then the battery exchange component 30 can be driven to lift the power battery box 44 away from the electric vehicle 40. When the horizontal travel angle and the deviation angle of the battery exchange component 30 when it is running at no load are adapted, the power battery box 44 is lifted off, so as to make the lifting process smooth and avoid collision with the power battery box 44.

[0069] Step S40, based on the battery exchange assembly 30, the power battery box 44 is lifted off the electric vehicle 40, and the battery exchange assembly 30 is driven to adjust the horizontal travel angle until it matches the preset placement position in the charging compartment 10, so as to facilitate the placement of the power battery box 44 in the preset placement position in the charging compartment 10 through the battery exchange assembly 30.

[0070] Step S50, based on the horizontal travel angle of the power battery box 44 carried by the battery exchange assembly 30 being compatible with the preset placement position, drive the battery exchange assembly 30 to place the power battery box 44 at the preset placement position, thereby charging the power battery box 44.

[0071] Step S60: Based on the power battery box 44 being located at the preset placement position, drive the battery swapping component 30 to hoist the spare battery box 20 in the charging bin 10, facilitating the installation of the spare battery box 20 onto the electric vehicle 40.

[0072] Step S70: Based on the battery swapping component 30 hoisting the spare battery box 20, drive the battery swapping component 30 to adjust the horizontal travel angle until it matches the deviation angle, enabling the hoisting trolley 33 to travel above the position on the electric vehicle 40 where the spare battery box 20 is to be placed, improving the accuracy of the hoisting process of the spare battery box 20.

[0073] Step S80: Based on the horizontal travel angle of the battery swapping component 30 carrying the spare battery box 20 matching the deviation angle, drive the battery swapping component 30 to move, and move the spare battery box 20 to above the position on the electric vehicle 40 where the spare battery box 20 is to be placed through the hoisting trolley 33, and finally place it at the corresponding position on the electric vehicle 40, thus completing the battery swapping process.

[0074] In this process, when the electric vehicle 40 enters the vehicle battery swapping station, the horizontal travel angle of the battery swapping component 30 during no-load operation can be adjusted to match the parking deviation angle of the electric vehicle 40 according to the parking deviation angle of the electric vehicle 40 at the preset battery swapping position, so that the hoisting operation of the power battery box 44 can be accurately performed, solving the problem of battery swapping for the electric vehicle 40.

[0075] In this embodiment, step S40 may include:

[0076] Step S41: Based on the battery swapping component 30 hoisting the power battery box 44 off the electric vehicle 40, drive the battery swapping component 30 to adjust the position of the power battery box 44 until the power battery box 44 is vertically below the lateral translation unit 31. The battery swapping method in the present invention is applicable to two exemplary embodiments, and in both embodiments, the longitudinal translation unit 32 can swing only through the lateral translation unit 31. Therefore, when adjusting the horizontal travel angle during hoisting the battery box, the spare battery box 20 or the power battery box 44 is first moved below the lateral translation unit 31, so that the influence of the inertia of the power battery box 44 during the rotation process is smaller, and the stability of the battery swapping process can be improved.

[0077] Step S42: Based on the power battery box 44 carried by the battery swapping component 30 being vertically below the lateral translation unit 31, adjust the horizontal travel angle of the battery swapping component 30 carrying the power battery box 44 until it matches the preset placement position in the charging bin 10. Adjusting the horizontal travel angle of the battery swapping component 30 to match the preset placement position in the charging bin 10 facilitates placing the power battery box 44 into the preset position in the charging bin 10.

[0078] In this embodiment, step S70 may include:

[0079] Step S71: Based on the battery replacement component 30, hoist the spare battery box 20, and drive the battery replacement component 30 to adjust the position of the spare battery box 20 until the spare battery box 20 is vertically below the transverse movement unit 31. The battery replacement component 30 rotates around the first rotating shaft 344. When the position of the spare battery box 20 is adjusted to be vertically below the transverse movement unit 31, the spare battery box 20 is closer to the first rotating shaft 344 and has a short lever arm. During the rotation process, it is less affected by the inertia of the spare battery box 20, which can improve the stability of battery replacement.

[0080] Step S72: Based on the fact that the spare battery box 20 carried by the battery replacement component 30 is vertically below the transverse movement unit 31, adjust the horizontal traveling angle of the battery replacement component 30 carrying the spare battery box 20 until it matches the deviation angle. Adjusting the horizontal traveling angle of the battery replacement component 30 until it matches the deviation angle of the electric vehicle 40 is beneficial to moving the spare battery box 20 above the bottom support component 43 of the electric vehicle 40, which is convenient for improving the accuracy of battery replacement.

[0081] Those of ordinary skill in the art can understand that the above embodiments are specific cases for implementing the present disclosure. In actual applications, various changes can be made in form and details without departing from the scope of the present disclosure.

Claims

1. A vehicle battery swapping station, characterized in that, the vehicle battery swapping station includes a charging bin, a plurality of spare battery boxes, and a battery swapping component. The plurality of spare battery boxes are detachably connected inside the charging bin, and the battery swapping component is detachably connected to the charging bin; the battery swapping component includes: a lateral movement unit slidably connected to the charging bin in the horizontal direction; a longitudinal movement unit slidably connected to the lateral movement unit in the horizontal direction, and the movement direction of the longitudinal movement unit intersects with the movement direction of the lateral movement unit; a hoisting trolley detachably connected to the longitudinal movement unit; a swinging unit detachably connected to the lateral movement unit, and the swinging unit drives the longitudinal movement unit to rotate around the vertical axis through the lateral movement unit; the lateral movement unit includes a first lateral movement rod, a second lateral movement rod, and a lateral movement driving part. The first lateral movement rod and the second lateral movement rod are slidably connected to the charging bin in the horizontal direction. The movement directions of the first lateral movement rod and the second lateral movement rod are parallel, and the lateral movement driving part drives the first lateral movement rod and the second lateral movement rod to move synchronously or differentially; the swinging unit includes a track frame, a first rotating shaft, and a linkage. One end of the track frame is rotatably connected to the first lateral movement rod through the first rotating shaft. The first rotating shaft is vertically arranged. The linkage is detachably connected to the end of the track frame away from the first rotating shaft. The linkage is slidably connected to the second lateral movement rod in the horizontal direction, and the sliding direction of the linkage is perpendicular to the movement direction of the second lateral movement rod; the longitudinal movement unit is slidably connected to the track frame in the horizontal direction.

2. The vehicle battery swapping station according to claim 1, characterized in that, the linkage is a second rotating shaft, and the second rotating shaft is rotatably connected to the track frame around its own axis. The second rotating shaft is vertically arranged.

3. The vehicle battery swapping station according to claim 1, characterized in that, the hoisting trolley is slidably connected to the longitudinal movement unit, and the movement direction of the hoisting trolley is parallel to the movement direction of the longitudinal movement unit.

4. A vehicle battery swapping system, characterized in that, the vehicle battery swapping system includes: the vehicle battery swapping station according to any one of claims 1-3; an electric vehicle, which includes a vehicle body, a cab, a bottom support component, a power battery box, and a protective top cover. The cab is detachably connected to one end of the vehicle body. The bottom support component is detachably connected to the vehicle body. The power battery box is detachably connected to the bottom support component. The protective top cover is detachably connected to the vehicle body, and the protective top cover is located above the bottom support component, the power battery box, and the cab.

5. A vehicle battery swapping method applied to the vehicle battery swapping system according to claim 4, characterized in that, the vehicle battery swapping method includes: Step S10, based on the electric vehicle being located at a preset battery swapping position in the vehicle battery swapping station, obtaining the deviation angle of the electric vehicle relative to the preset battery swapping position; Step S20, based on the deviation angle being greater than a first threshold and less than a second threshold, adjusting the horizontal traveling angle of the battery swapping component during no-load operation until it adapts to the deviation angle; Step S30: Based on the horizontal travel angle of the battery swapping component during no-load operation being adapted to the deviation angle, drive the battery swapping component to lift the power battery box off the electric vehicle; Step S40: Based on the battery swapping component lifting the power battery box off the electric vehicle, drive the battery swapping component to straighten the horizontal travel angle until it is adapted to the preset placement position in the charging bin; Step S50: Based on the horizontal travel angle of the battery swapping component carrying the power battery box being adapted to the preset placement position, drive the battery swapping component to place the power battery box at the preset placement position; Step S60: Based on the power battery box being located at the preset placement position, drive the battery swapping component to hoist the spare battery box in the charging bin; Step S70: Based on the battery swapping component hoisting the spare battery box, drive the battery swapping component to adjust the horizontal travel angle until it is adapted to the deviation angle; Step S80: Based on the horizontal travel angle of the battery swapping component carrying the spare battery box being adapted to the deviation angle, drive the battery swapping component to place the spare battery box on the electric vehicle.

6. The vehicle battery swapping method according to claim 5, wherein Step S40 includes: Step S41: Based on the battery swapping component lifting the power battery box off the electric vehicle, drive the battery swapping component to adjust the position of the power battery box until the power battery box is vertically below the transverse movement unit; Step S42: Based on the power battery box carried by the battery swapping component being vertically below the transverse movement unit, adjust the horizontal travel angle of the battery swapping component carrying the power battery box until it is adapted to the preset placement position in the charging bin.

7. The vehicle battery swapping method according to claim 5, wherein Step S70 includes: Step S71: Based on the battery swapping component hoisting the spare battery box, drive the battery swapping component to adjust the position of the spare battery box until the spare battery box is vertically below the transverse movement unit; Step S72: Based on the spare battery box carried by the battery swapping component being vertically below the transverse movement unit, adjust the horizontal travel angle of the battery swapping component carrying the spare battery box until it is adapted to the deviation angle.

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