Battery replacement device of chassis type battery swap equipment

Abstract

The application provides a battery replacement device of a chassis type battery replacement equipment, which is applied to the battery replacement equipment for replacing the batteries at the bottom of a battery replacement vehicle. The battery replacement device comprises a vehicle body positioning part and a battery positioning part which are respectively movably arranged on a base of the battery replacement equipment. After the vehicle body positioning part is positioned with the battery replacement vehicle, the battery pack is moved by the battery positioning part to realize the dismounting or mounting of the battery. The battery replacement device further comprises an unlocking mechanism which is arranged on the vehicle body positioning part in a liftable manner and is used for unlocking the battery pack. An avoiding mechanism is arranged on the battery positioning part at a position corresponding to the unlocking mechanism. The relative movement of the vehicle and the battery replacement device can be prevented, the work of the unlocking mechanism can be avoided from being interfered, and the battery replacement efficiency can be greatly improved.

Description

Technical Field

[0001] This invention relates to the field of battery swapping technology, and in particular to a battery replacement device for a chassis-type battery swapping equipment. Background Technology

[0002] Existing electric vehicle battery pack installation methods are generally divided into fixed and swappable types. Fixed battery packs are typically fixed to the vehicle, and the vehicle is used as the charging device during charging. Swappable battery packs, on the other hand, are usually installed in a movable manner, allowing the battery pack to be removed and replaced with a new one at any time.

[0003] For large vehicles, such as light trucks, the significant weight of the vehicle body and cargo necessitates a high capacity battery pack to support the required driving range. Therefore, in current technology, batteries in new energy light trucks are typically placed on both sides of the vehicle's frame, supported by brackets welded to the frame. This results in a complex mounting structure that hinders battery swapping. Furthermore, battery swapping requires two separate swapping devices on each side of the vehicle, demanding a large space for the swapping station. The need for two sets of swapping equipment also significantly increases costs and reduces efficiency. Therefore, a simpler, more readily available, and easily adopted battery swapping method is urgently needed for light trucks and similar vehicles. For example, a chassis-based battery swapping mode for passenger vehicles can be adopted. In this mode, before removing or installing the battery pack, the battery swapping equipment (or battery swapping trolley) needs to be moved to the swapping position under the vehicle. Then, the lifting operation of the swapping platform on the battery swapping equipment and the removal or installation of the battery pack are performed to complete the entire battery swapping process.

[0004] However, when replacing chassis-mounted battery packs in battery-swapping vehicles such as light trucks, the low chassis and heavy batteries result in limited space for battery swapping under the vehicle. This can lead to low swapping efficiency when removing the old battery pack or installing the new one, and may also pose safety hazards. Furthermore, during the battery pack replacement process, the battery swapping equipment can easily move relative to the vehicle when locking or unlocking the battery pack, further reducing swapping efficiency. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the defect that the battery swapping equipment in the prior art is prone to relative movement between the battery pack and the vehicle when locking and unlocking the battery pack, resulting in low battery swapping efficiency, and to provide a battery swapping device for a chassis-type battery swapping equipment.

[0006] The present invention solves the above-mentioned technical problems through the following technical solution:

[0007] A battery replacement device for a chassis-type battery swapping equipment is used in a battery swapping device for bottom-mounted battery swapping of a battery swapping vehicle. The battery replacement device includes a vehicle positioning part and a battery positioning part movably mounted on the base of the battery swapping equipment. After the vehicle positioning part is positioned with the battery swapping vehicle, the battery pack is moved by the battery positioning part to achieve battery removal or installation. The battery replacement device also includes an unlocking mechanism that is liftably mounted on the vehicle positioning part for unlocking the battery pack. A clearance mechanism is provided on the battery positioning part corresponding to the position of the unlocking mechanism.

[0008] In this solution, when the battery swapping device arrives at the swapping location, the vehicle positioning unit positions itself relative to the swapping vehicle, preventing relative movement between the vehicle and the battery swapping device. The battery pack is then precisely positioned by the battery positioning unit, and the battery pack can be unlocked via an unlocking mechanism on the vehicle positioning unit, thereby significantly improving swapping efficiency. Furthermore, the battery positioning unit has an avoidance mechanism corresponding to the unlocking mechanism's position. This avoids interference with the unlocking mechanism's operation and allows for a more compact structure, effectively reducing the overall size and height of the battery swapping device, facilitating chassis-based battery swapping for vehicles such as light trucks.

[0009] Preferably, the vehicle body positioning part includes a first movable plate movably disposed on the base, and the battery positioning part includes a second movable plate movably disposed on the base.

[0010] The first movable plate and the second movable plate have some edge areas that overlap vertically. The unlocking mechanism includes a lifting base disposed on the first movable plate in the overlapping area and an unlocking component disposed on the lifting base.

[0011] In this design, the lifting base enables the unlocking mechanism to move vertically within the overlapping area of ​​the first and second moving plates, effectively reducing the height of the unlocking mechanism and thus minimizing the overall size of the battery replacement device. Furthermore, when the battery replacement device reaches the battery swapping position, the first and second moving plates can move to position the vehicle body and unlock the battery pack, improving the unlocking success rate.

[0012] Preferably, the avoidance mechanism includes a groove disposed on the second movable plate, and the unlocking mechanism is disposed on the first movable plate and extends through the groove.

[0013] In this design, the obstacle avoidance mechanism includes a groove on the second movable plate, and the unlocking mechanism is located on the first movable plate and extends through the groove, thereby making the space more compact and reducing the overall size of the battery replacement device.

[0014] Preferably, the battery positioning part further includes a tray floating on the second movable plate, and the avoidance mechanism includes a first through hole disposed on the tray corresponding to the position of the unlocking mechanism.

[0015] In this solution, the battery positioning unit is equipped with a tray, which enables the second moving plate to support the battery pack more stably. The avoidance mechanism includes a first through hole on the tray corresponding to the unlocking mechanism. On the one hand, it can make the space more compact and improve the space utilization rate; on the other hand, it can prevent the tray from interfering with or colliding with the unlocking component during the movement of the battery pack, thus preventing damage to the equipment structure and improving its service life.

[0016] Preferably, the groove and the first through hole are respectively formed with sliding paths for the second moving plate and the tray to move relative to the unlocking mechanism.

[0017] In this solution, a sliding path is formed, which can prevent the second moving plate and the tray from interfering with or colliding with the unlocking mechanism when they move, thereby affecting the movement of the second moving plate and the tray.

[0018] Preferably, the lifting base includes an unlocking guide groove, the unlocking component is disposed in the unlocking guide groove, and the unlocking guide groove is obliquely shaped to guide the unlocking component to move up and down.

[0019] In this solution, the above-described structure can guide the unlocking component to move up and down to unlock the battery pack.

[0020] Preferably, the vehicle positioning part further includes a vehicle positioning member disposed on the first movable plate, the vehicle positioning member being disposed at the end of the first movable plate opposite to the electrical connection mechanism of the battery pack.

[0021] In this solution, the body positioning component can quickly connect and position the body positioning unit to the vehicle. Moreover, by placing the body positioning component on the opposite side of the electrical connection mechanism, interference or collision with the electrical connection mechanism at the bottom of the battery swapping vehicle is avoided, and the overall height of the battery swapping equipment is reduced.

[0022] Preferably, the battery positioning part further includes a battery positioning element disposed on the tray, the battery positioning element including a plurality of positioning blocks disposed at the end corners of the tray.

[0023] In this solution, the battery positioning component enables the tray to be quickly connected and positioned to the battery pack.

[0024] Preferably, the second movable plate has a hollow frame structure, and the first movable plate has a C-shaped structure with the corresponding frame edge of the second movable plate sandwiched from the inside to the outside. A receiving cavity is formed between the first movable plate and the second movable plate. The receiving cavity is used to install the driving mechanism of the first movable plate and the second movable plate. The battery replacement device also includes a protective plate covering the top surface of the receiving cavity.

[0025] In this solution, the above-mentioned structural form makes the structure of the first moving plate and the second moving plate more compact and rationally arranged, reducing the overall size, while not interfering with each other's movement process; furthermore, a protective plate is set outside the receiving cavity to effectively protect the components inside the receiving cavity.

[0026] Preferably, the battery replacement device further includes a detection mechanism, which includes a tray sensing unit disposed on the top surface of the second movable plate and facing the tray. The tray sensing unit is used to sense whether the tray has detached from the second movable plate during battery installation.

[0027] In this solution, a tray sensing unit is installed to detect whether the tray has detached from the second moving plate. After the battery pack is installed on the battery swapping vehicle, it ensures that the tray and the battery pack are effectively detached, thereby further improving the battery swapping success rate.

[0028] Preferably, the detection mechanism further includes a battery sensing unit disposed on the first movable plate, and the corresponding position of the protection plate is provided with a second through hole that matches the battery sensing unit.

[0029] In this solution, a battery sensing unit can detect whether a battery pack is present on the tray or vehicle. Before performing battery removal or installation, it pre-determines whether a battery pack is present on the battery replacement device or the battery swapping vehicle, effectively preventing misoperation and improving battery swapping efficiency. Furthermore, a matching second through-hole is provided on the protection board, satisfying both protection requirements and sensor placement needs, thus balancing protection performance and battery swapping success rate.

[0030] Preferably, the detection mechanism further includes a sensing element and a matching element respectively disposed on the base at positions corresponding to the first moving plate and / or the second moving plate, wherein the moving position of the first moving plate and / or the second moving plate is detected by sensing the matching element through the sensing element.

[0031] In this solution, sensors and matching components are installed to detect the specific moving positions of the first and / or second moving plates, such as the origin position, reset position, and final position. The next operation is performed based on the feedback results of the position detection, thereby further improving the battery swapping success rate.

[0032] The positive and progressive effects of this invention are as follows: When the battery swapping device arrives at the swapping location, the vehicle positioning part is positioned relative to the swapping vehicle, preventing relative movement between the vehicle and the battery swapping device. The battery pack is then precisely positioned by the battery positioning part, and the battery pack can be unlocked by the unlocking mechanism on the vehicle positioning part, thereby significantly improving swapping efficiency. Furthermore, the battery positioning part is equipped with an avoidance mechanism corresponding to the unlocking mechanism's position. This avoids interference with the unlocking mechanism's operation and allows for a more compact structure, effectively reducing the overall size and height of the battery swapping device, facilitating chassis-based battery swapping for vehicles such as light trucks. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the battery replacement device of a chassis-type battery swapping equipment according to a preferred embodiment of the present invention.

[0034] Figure 2 This is a partial structural diagram of the battery replacement device of the chassis-type battery swapping equipment after removing the tray, according to a preferred embodiment of the present invention.

[0035] Figure 3 This is a schematic diagram of the unlocking mechanism according to a preferred embodiment of the present invention.

[0036] Figure 4 This is a schematic diagram of the lifting base according to a preferred embodiment of the present invention.

[0037] Figure 5 A schematic diagram of the installation position of the detection component according to a preferred embodiment of the present invention.

[0038] Figure 6 A schematic diagram of the structure of the second movable plate according to a preferred embodiment of the present invention.

[0039] Explanation of reference numerals in the attached figures:

[0040] Base 1

[0041] First moving plate 11

[0042] Body positioning component 12

[0043] Second moving plate 21

[0044] tray 22

[0045] Battery positioning component 23

[0046] Unlocking mechanism 3

[0047] Protection board 4

[0048] Groove 5

[0049] Lifting base 6

[0050] Unlock guide slot 61

[0051] Unlock part 62

[0052] First through hole 7

[0053] Second through hole 8

[0054] Tray sensing unit 9

[0055] Battery sensing unit 10

[0056] First inspection item 003

[0057] Second inspection item 004

[0058] Third inspection item 005 Detailed Implementation

[0059] The present invention will be described more clearly and completely below with reference to a preferred embodiment and the accompanying drawings.

[0060] like Figures 1-4 As shown, this embodiment provides a battery swapping device for a chassis-type battery swapping equipment, applied in a battery swapping system used for bottom-mounted battery swapping of vehicles. Specifically, in this embodiment, the battery swapping device is a liftable battery swapping platform, which, after being lifted, is used to install and remove the battery pack. The battery swapping device includes a vehicle body positioning part and a battery positioning part, which are respectively movably mounted on the base 1 of the battery swapping equipment. Both the vehicle body positioning part and the battery positioning part are along... Figure 1 The vehicle body positioning unit and the battery positioning unit can move relative to each other in the first direction, as indicated by the middle arrow. After the vehicle body positioning unit is positioned with the battery swapping vehicle, the battery pack is moved by the battery positioning unit to achieve battery removal or installation. The battery replacement device also includes an unlocking mechanism 3 that is liftably mounted on the vehicle body positioning unit and used to unlock the battery pack. A clearance mechanism is provided on the battery positioning unit at the position corresponding to the unlocking mechanism 3.

[0061] In this solution, when the battery swapping device reaches the swapping location, the vehicle positioning unit and the swapping vehicle are positioned, and the battery pack and the vehicle positioning unit can move relative to each other. Therefore, the battery pack can be accurately positioned by moving the battery positioning unit, and the battery pack can be unlocked by the unlocking mechanism 3 set on the vehicle positioning unit, thereby greatly improving the swapping efficiency. In addition, the battery positioning unit is equipped with an avoidance mechanism corresponding to the unlocking mechanism 3. On the one hand, this avoids interference with the operation of the unlocking mechanism 3, and on the other hand, the structure and position of the unlocking mechanism are reasonably arranged, making the structure more compact and effectively reducing the overall size and height of the battery swapping device, which facilitates chassis-type battery swapping for vehicles such as light trucks.

[0062] like Figures 1-4 As shown, the vehicle positioning part includes a first movable plate 11 that can be moved along a first direction and is disposed on the base 1, and the battery positioning part includes a second movable plate 21 that can be moved along a first direction and is disposed on the base 1. Partial edge areas of the first movable plate 11 and the second movable plate 21 are overlapped vertically. The first movable plate extends from the lower part of the second movable plate and extends beyond the upper surface of the second movable plate. The unlocking mechanism 3 includes a lifting base 6 disposed on the overlapping area corresponding to the first movable plate 11 and an unlocking member 62 disposed on the lifting base 6.

[0063] In this embodiment, within the overlapping area of ​​the edges of the first moving plate 11 and the second moving plate 21, the lifting base enables the lifting and lowering movement of the unlocking component, effectively reducing the height of the unlocking mechanism and facilitating a reduction in the overall size of the battery replacement device. Furthermore, when the battery replacement device reaches the battery swapping position, the first moving plate 11 and the second moving plate 21 can move to position the vehicle body and unlock the battery pack, improving the unlocking success rate.

[0064] like Figures 1-4 As shown, the avoidance mechanism includes a groove 5 on the second moving plate 21, and the unlocking mechanism 3 is disposed on the first moving plate 11 and passes through the groove 5.

[0065] In this embodiment, the avoidance mechanism includes a groove 5 provided on the second moving plate 21, and the unlocking mechanism 3 is provided on the first moving plate 11 and passes through the groove 5, thereby making the space more compact and reducing the overall volume of the battery swapping equipment.

[0066] like Figures 1-4 As shown, the battery positioning part also includes a tray 22 floating on the second moving plate 21. The avoidance mechanism includes a first through hole 7 set on the tray 22 at the position corresponding to the unlocking mechanism 3. The first through hole 7 is an oblong hole that connects the space where the unlocking mechanism 3 is located and the space above the tray 22.

[0067] In this embodiment, the battery positioning unit is equipped with a tray 22, which enables the second moving plate 21 to more stably support the battery pack. The avoidance mechanism includes a first through hole 7 on the tray 22 corresponding to the unlocking mechanism 3. On the one hand, this makes the space more compact and improves space utilization; on the other hand, it avoids interference or collision between the tray and the unlocking mechanism during the movement of the battery pack, preventing damage to the equipment structure and improving service life.

[0068] like Figures 1-4 As shown, the groove 5 and the first through hole 7 are respectively formed with sliding paths for the second moving plate 21 and the tray 22 to move relative to the unlocking mechanism 3.

[0069] In this embodiment, the first through hole 7 is an oblong hole, and the length direction of the oblong hole extends along the moving direction of the second moving plate 21 to form a sliding path for the second moving plate 21 to move relative to the unlocking mechanism 3. The length direction of the groove 5 also extends along the moving direction of the second moving plate 21 to form a sliding path for the tray 22 to move relative to the unlocking mechanism 3. This can prevent the second moving plate 21 and the tray 22 from interfering with or colliding with the unlocking mechanism when they move, thereby affecting the movement of the second moving plate 21 and the tray 22.

[0070] like Figures 3-4 As shown, the lifting base 6 includes an unlocking guide groove 61, and an unlocking component 62 is disposed in the unlocking guide groove. The unlocking guide groove is obliquely shaped to guide the unlocking component 62 to move up and down.

[0071] like Figure 3 and Figure 4 In this embodiment, the unlocking rod has a protrusion extending to the side, and the lifting base 6 has an unlocking guide groove 61 for guiding the protrusion to rise and fall. Thus, the horizontal movement of the lifting base 6 allows the protrusion to move up and down along the unlocking guide groove, thereby driving the unlocking component 62 to move up and down. This saves space in the vertical direction, improves the stability of the unlocking rod during the process of driving the unlocking component 62, and efficiently drives the unlocking rod. The inclined unlocking guide groove 61, extending from the lowest to the highest position, allows the unlocking component 62 to slide along the direction in the inclined groove when the lifting base 6 moves horizontally, easily achieving the up and down movement of the unlocking component 62 to unlock. The structure is simple and reliable.

[0072] like Figures 1-4 As shown, the vehicle positioning part also includes a vehicle positioning member 12 disposed on the first moving plate 11. The vehicle positioning member 12 is disposed on the end of the first moving plate 11 opposite to the electrical connection mechanism of the battery pack. In this embodiment, the vehicle positioning member 12 is a positioning pin. There are two vehicle positioning members 12, and the two vehicle positioning members 12 are disposed at intervals on the upper surface of the first moving plate 11 in a direction perpendicular to the first direction.

[0073] In this embodiment, the body positioning component 12 can quickly connect and position the body positioning part to the vehicle. The cone-shaped part makes it easier to insert the body positioning component into the existing structure of the vehicle. Furthermore, placing the body positioning component on the opposite side of the electrical connection mechanism avoids interference or collision with the electrical connection mechanism at the bottom of the battery swapping vehicle and helps to reduce the overall height of the battery swapping equipment.

[0074] like Figures 1-4 As shown, the battery positioning part also includes a battery positioning component 23 disposed on the tray 22. The battery positioning component 23 includes a plurality of positioning blocks disposed at the corners of the tray 22. In this embodiment, there are four positioning blocks. The four positioning blocks have the same structural shape and are respectively disposed at the four corners of the tray 22. The top of the positioning block is conical.

[0075] Specifically, the battery positioning component is a floating mechanism including an elastic element. The elastic element has a head end and a tail end along its length. The head end acts on the tray, and the tail end acts on the second movable plate, so that the tray can float relative to the second movable plate. Specifically, the elastic element can be a disc spring, tension spring, compression spring, etc.

[0076] The elastic element has receiving cavities formed at least at its first and last ends along its length. A column is connected to the surface of the battery tray facing away from the vehicle battery. The receiving cavity at the first end of the elastic element is fitted outside the column, and the first end of the elastic element abuts against the surface of the battery tray facing away from the vehicle battery. On the one hand, the column positions the battery tray; on the other hand, the battery tray is reliably supported above the elastic element by the column.

[0077] The tail end of the elastic element is connected to a limiting mechanism, which includes a positioning post, a protective sleeve, and at least one connecting member. The positioning post is fixed to the second moving member, and the receiving cavity at the tail end of the elastic element is sleeved outside the positioning post. The protective sleeve is fixed to the moving tray and sleeved on the tail end of the elastic element. The connecting member passes through the protective sleeve and the elastic element, and abuts against the positioning post to fix the elastic element. The positioning post restricts the movement of the elastic element, the protective sleeve further restricts the circumferential movement of the elastic element along the protective sleeve, and the connecting member prevents the elastic element from popping out or being carried out by the battery tray. Therefore, the cooperation of the protective sleeve and the connecting member improves the reliability of the elastic element, further enhancing the reliability of battery swapping. In this embodiment, the battery positioning member 23 enables quick connection and positioning of the battery positioning part to the battery pack, and the conical positioning block facilitates insertion of the positioning block into the existing structure of the battery pack.

[0078] like Figures 1-4As shown, the second movable plate 21 has a hollow frame structure, and the first movable plate 11 has a C-shaped structure with the corresponding frame edge of the second movable plate 21 sandwiched from the inside to the outside. A receiving cavity is formed between the first movable plate 11 and the second movable plate 21. The receiving cavity is used to install the driving mechanism of the first movable plate 11 and the second movable plate 21. The battery replacement device also includes a protective plate 4 covering the top surface of the receiving cavity. A motor for driving the first movable plate and the second movable plate to move is provided below the protective plate.

[0079] like Figure 6 As shown, in this embodiment, the above-mentioned structural form makes the structure of the first moving plate 21 and the second moving plate 11 more compact, reasonably arranged, and reduces the overall size, while not interfering with each other's movement process; furthermore, a protective plate is set outside the receiving cavity to effectively protect the components inside the receiving cavity.

[0080] like Figures 1-4 As shown, the battery replacement device also includes a detection mechanism, which includes a tray sensing unit 9 disposed on the top surface of the second moving plate 21 and facing the tray 22. The tray sensing unit 9 is used to sense whether the tray 22 is detached from the second moving plate 21 during battery installation, thereby further improving the battery replacement success rate.

[0081] like Figures 1-4 As shown, the detection mechanism also includes a battery sensing unit 10 disposed on the first movable plate 11, and a second through hole 8 matching the battery sensing unit is provided at the corresponding position of the protection plate 4, with the battery sensing unit 10 exposed in the second through hole 8.

[0082] In this embodiment, a battery sensing unit is provided to detect whether there is a battery pack on the tray and vehicle. Before performing battery removal or installation operations, it can pre-determine whether there is a battery pack on the battery replacement device or the battery swapping vehicle, effectively preventing misoperation and improving battery swapping efficiency. In addition, a matching second through hole is provided on the protection board, which can meet the sensor's installation requirements while satisfying the protection effect, thus balancing protection performance and battery swapping success rate.

[0083] like Figures 1-4 As shown, the detection mechanism also includes a sensor and a matching component respectively disposed on the base 1 at corresponding positions to the first movable plate 11. The movement position of the first movable plate 11 is detected by the sensing of the matching component by the sensor. The detection mechanism may also include a sensor and a matching component respectively disposed on the base 1 at corresponding positions to the second movable plate 21. The movement position of the second movable plate 21 is detected by the sensing of the matching component by the sensor.

[0084] In this embodiment, as Figure 5As shown, the detection components include: a first detection component 003, a second detection component 004, and a third detection component 005. The first, second, and third detection components are fixedly installed on the fixed component on the side away from the lifting base 6. The first detection component 003 is installed on the fixed fastener on the side away from the driver. The second detection component 004 is installed on the fixed component at a position corresponding to the unlocking component. The third detection component 005 is installed on the fixed component on the side close to the driver. The fixed component ensures the stable installation of the detection components, which is beneficial for ensuring the detection accuracy. The sensor and matching component can detect the specific movement position of the first and / or second moving plates, such as the origin position, reset position, and final position. The feedback result of the position detection is used for the next operation, thereby further improving the battery swapping success rate.

[0085] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of the present invention 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 invention, but all such changes and modifications fall within the scope of protection of the present invention.

Claims

1. A battery replacement device for a chassis-type battery swapping equipment, used in a battery swapping device for bottom-mounted battery swapping of vehicles, the battery replacement device comprising a vehicle body positioning part and a battery positioning part respectively movably disposed on a base of the battery swapping equipment, wherein after the vehicle body positioning part is positioned with the battery swapping vehicle, the battery pack is moved by the battery positioning part to achieve battery removal or installation, characterized in that, The battery replacement device also includes an unlocking mechanism that can be lifted and lowered on the vehicle positioning part and is used to unlock the battery pack. The battery positioning part is provided with an avoidance mechanism corresponding to the position of the unlocking mechanism. The unlocking mechanism includes a lifting base and an unlocking component disposed on the lifting base. The lifting base is fixed to the vehicle positioning part, and the unlocking component is movably connected to the lifting base and can be raised and lowered relative to the lifting base. The lifting base includes an unlocking guide groove, and the unlocking component is disposed in the unlocking guide groove. The unlocking guide groove is diagonal and is used to guide the unlocking component to move up and down.

2. The battery replacement device of the bottom-loading battery swap apparatus according to claim 1, wherein The vehicle positioning unit includes a first movable plate movably disposed on the base, and the battery positioning unit includes a second movable plate movably disposed on the base. The first movable plate and the second movable plate have some edge areas that overlap vertically, and the lifting base is disposed on the first movable plate corresponding to the overlapping edge area.

3. The battery replacement device of the bottom-loading battery swap apparatus according to claim 2, wherein The avoidance mechanism includes a groove on the second movable plate, and the unlocking mechanism is disposed on the first movable plate and extends through the groove.

4. The battery replacement device of the bottom-loading battery swap apparatus according to claim 3, wherein The battery positioning part also includes a tray that floats on the second movable plate, and the avoidance mechanism includes a first through hole on the tray corresponding to the position of the unlocking mechanism.

5. The battery replacement device of the bottom-loading battery swap apparatus according to claim 4, wherein The groove and the first through hole are respectively formed with sliding paths for the second moving plate and the tray to move relative to the unlocking mechanism.

6. The battery replacement device of the bottom-loading battery swap apparatus according to claim 2, wherein The vehicle positioning part further includes a vehicle positioning component disposed on the first movable plate, the vehicle positioning component being disposed at the end of the first movable plate opposite to the electrical connection mechanism of the battery pack.

7. The battery replacement device of the bottom-loading battery swap apparatus according to claim 4, wherein The battery positioning part further includes a battery positioning component disposed on the tray, the battery positioning component including a plurality of positioning blocks disposed at the end corners of the tray.

8. The battery replacement device of the bottom-loading battery swap apparatus according to claim 4, wherein The second movable plate has a hollow frame structure, and the first movable plate has a C-shaped structure with the corresponding frame edge of the second movable plate sandwiched from the inside to the outside. A receiving cavity is formed between the first movable plate and the second movable plate. The receiving cavity is used to install the driving mechanism of the first movable plate and the second movable plate. The battery replacement device also includes a protective plate covering the top surface of the receiving cavity.

9. The battery replacement device of the bottom-loading battery swap apparatus according to claim 8, wherein The battery replacement device further includes a detection mechanism, which includes a tray sensing unit disposed on the top surface of the second movable plate and facing the tray. The tray sensing unit is used to sense whether the tray has detached from the second movable plate during battery installation.

10. The battery replacement device of the bottom-loading battery swap apparatus according to claim 9, wherein The detection mechanism also includes a battery sensing unit disposed on the first movable plate, and the corresponding position of the protection plate is provided with a second through hole that matches the battery sensing unit.

11. The battery replacement device of the bottom-loading battery swap apparatus according to claim 9, wherein The detection mechanism further includes a sensing element and a matching element respectively disposed on the base at positions corresponding to the first moving plate and / or the second moving plate. The moving position of the first moving plate and / or the second moving plate is detected by sensing the matching element through the sensing element.

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