A chassis battery swapping device

Abstract

This utility model relates to the field of vehicle battery swapping technology, specifically to a chassis battery swapping device. The chassis battery swapping device includes a vehicle, a battery box, a guide assembly, a first locking assembly, and a second locking assembly. The vehicle includes an interconnected vehicle body and a main beam. The guide assembly includes a first guide unit. Both the first locking assembly and the first guide unit are partially connected to the main beam and partially connected to the battery box. The chassis battery swapping device includes a locked state. The locked state includes the first locking assembly restricting the battery box from moving away from the main beam, and the first guide unit restricting the battery box from moving closer to the main beam. This solves the problems of complex and low reliability in the connection structure between the battery box and the vehicle in chassis battery swapping devices. Furthermore, the connection method of this utility model is a flexible connection, which can prevent damage to the battery box structure due to the torsion and deformation of the vehicle main beam during vehicle operation.

Description

Technical Field

[0001] This utility model relates to the field of vehicle battery swapping technology, and more specifically, to a chassis battery swapping device. Background Technology

[0002] In battery box and vehicle mounting technologies, locking devices are commonly used to connect and secure the two. The main function of the locking device is to connect the battery box to the vehicle frame through a specific mechanical structure or connection method, and to apply a downward restraining force to the battery box in the vertical direction, effectively preventing the battery box from falling during vehicle operation. Patent document CN112026577B discloses a battery swapping device, including a battery box frame assembly, a battery box assembly, and a drive mechanism. The battery box frame assembly supports and secures the battery box assembly, including a battery box frame and a locking component. The locking component guides and secures the battery box assembly, and an elongated hole is provided at the bottom of the battery box frame. The battery box assembly includes a battery box, locking blocks, a rack, and a battery pack. The locking blocks are located at both ends of the battery box and cooperate with the locking component to lock the battery box. The rack is located at the bottom of the battery box and engages with the elongated hole. The drive mechanism is fixed to the bottom of the battery box frame and connected to the rack, used to drive the installation and replacement of the battery box assembly.

[0003] Common locking devices can only achieve locking in one direction (preventing it from falling). When a vehicle travels on bumpy roads, the impact force transmitted from the road surface to the vehicle's frame can cause the battery pack to tend to move upwards. At this time, due to the lack of effective restraint on this upward movement, the battery pack is prone to upward jolting and damage. The key issue here is that the functional limitations of the locking device result in an incomplete locking method between the battery pack and the vehicle's frame. It cannot provide stable restraint on the battery pack in multiple directions, leading to unstable locking between the battery pack and the vehicle's frame, posing a safety hazard. Utility Model Content

[0004] To address the issues of complex battery box and vehicle connection structure and low reliability in chassis battery swapping devices, this utility model provides a chassis battery swapping device, comprising:

[0005] A vehicle, the vehicle comprising a body and a frame; the body and the frame are connected.

[0006] Battery box;

[0007] A guiding assembly, comprising a first guiding unit; a portion of the first guiding unit is connected to the main beam; and another portion of the first guiding unit is connected to the battery box.

[0008] A first locking assembly, part of which is connected to the main beam, and another part of which is connected to the battery box;

[0009] The second locking assembly has one end movably connected to the first guide unit and the other end movably connected to the battery box;

[0010] The chassis battery swapping device includes a locked state; the locked state includes a detachable connection between the portion of the first guide unit connected to the main beam and the portion of the first guide unit connected to the battery box, the portion of the first guide unit connected to the main beam abutting against a second locking component, the portion of the first locking component connected to the main beam penetrating the portion of the first locking component connected to the battery box, the portion of the first locking component connected to the main beam abutting against the portion of the first locking component connected to the battery box, the battery box being disposed on one side of the main beam, the first locking component restricting the battery box from moving away from the main beam, and the first guide unit restricting the battery box from moving closer to the main beam.

[0011] In some embodiments, the first locking assembly includes a first support unit, a rotating unit, and a first locking unit; one end of the first support unit is connected to the main beam, and the other end is movably connected to the rotating unit; one end of the rotating unit away from the first support unit is connected to a portion of the first locking unit; the other portion of the first locking unit is connected to the battery box.

[0012] The locking state also includes a detachable connection between the portion of the first locking unit connecting the rotating unit and the portion of the first locking unit connecting the battery box, wherein the first locking unit restricts the battery box from moving away from the main beam.

[0013] In some embodiments, the rotating unit includes a rotating module and a driving module; the rotating module and the driving module are movably connected; the first support unit and the rotating module are rotatably connected; the rotating module is connected to a portion of the first locking unit; and the driving module is connected to the first support unit.

[0014] The chassis battery swapping device includes a battery swapping state; the battery swapping state includes the drive module moving along the axial direction of the rotating module, the movement of the drive module driving the rotating module to rotate, and the rotation of the rotating module causing the portion of the first locking unit connected to the rotating unit to rotate relative to the portion of the first locking unit connected to the battery box.

[0015] In some embodiments, the rotating module includes a rotating rod, a first sliding groove, a first guide groove, a second sliding groove, and a second guide groove; four first sliding grooves are evenly spaced along the circumference of the rotating rod; four first guide grooves are evenly spaced along the circumference of the rotating rod; four second sliding grooves are evenly spaced along the circumference of the rotating rod; four second guide grooves are evenly spaced along the circumference of the rotating rod; the second sliding groove, the second guide groove, the first guide groove, and the first sliding groove are sequentially arranged along the length direction of the rotating rod; one first sliding groove communicates with one first guide groove; one second sliding groove communicates with one second guide groove; one first guide groove communicates with two adjacent second guide grooves; one second guide groove communicates with two adjacent first guide grooves; the first support unit and the rotating rod are rotatably connected; a portion of the first locking unit and the end of the rotating rod away from the first support unit are connected;

[0016] The driving module includes a driving ring, a driving rod, a driving head, a limiting sleeve, and a first elastic part; the limiting sleeve includes a sleeve body and a limiting groove; one end of the driving rod is connected to the inner circumference of the driving ring, and the other end extends towards the central axis of the driving ring; the driving head is connected to the outer circumference of the driving ring; the limiting groove is disposed on the inner circumference of the sleeve body; the limiting groove is slidably connected to the driving head; the inner circumference of the sleeve body is slidably connected to the outer circumference of the driving ring; one end of the sleeve body is connected to the first support unit; the first elastic part is disposed in the hollow cavity between the sleeve body and the rotating rod, one end of the first elastic part abuts against the first support unit, and the other end abuts against the end of the driving ring away from the first locking unit; the driving rod is movably connected to the first sliding groove;

[0017] The battery swapping state also includes the portion of the first locking unit connected to the battery box moving axially along the rotating rod. The movement of the portion of the first locking unit connected to the battery box drives the driving head to move away from the first locking unit in the limiting groove. The movement of the driving head drives the driving ring and the driving rod to move away from the first locking unit. The movement of the driving rod drives the rotating rod to rotate. During the rotation of the rotating rod, the driving rod moves in the first sliding groove, the first guide groove, the second guide groove, and the second sliding groove. The rotation of the rotating rod causes the portion of the first locking unit connected to the rotating rod to rotate relative to the portion of the first locking unit connected to the battery box.

[0018] In some embodiments, the first locking unit includes a lock head and a lock hole module; the lock hole module includes a lock hole body and a lock hole portion; the lock head is connected to the end of the rotating rod away from the main beam; the lock hole body forms a hollow frame; the lock hole body is connected to the battery box; the lock hole penetrates the side of the lock hole body near the main beam;

[0019] The locking state also includes the lock head penetrating the lock hole and extending into the hollow frame formed by the lock hole body; the lock head abutting against the lock hole body; and the lock head restricting the lock hole body from moving away from the main beam.

[0020] In some embodiments, the first support unit includes a connecting seat, a rubber ring, a first support portion, a second support portion, and a rotating hole; the connecting seat is connected to the main beam; the first support portion is connected to the connecting seat and extends in a direction away from the connecting seat; the second support portion is movably connected to the first support portion; one side of the rubber ring abuts against the first support portion, and the other side abuts against the second support portion; the rotating hole passes through the second support portion; the rotating rod passes through the rotating hole; the rotating rod and the second support portion are rotatably connected.

[0021] In some embodiments, the second locking component includes a second support module, a conduction module, and a second locking module; the second support module is connected to the battery box; one end of the conduction module is movably connected to the second support module, and the other end is movably connected to the second locking module; the second locking module is movably connected to a portion of the first guide unit connected to the battery box.

[0022] The locking state also includes the second locking module abutting against the portion of the first guide unit connected to the main beam, restricting the battery box from moving towards the main beam.

[0023] In some embodiments, the second support module includes a second support body and a positioning hole; the transmission module includes a first connecting rod, a second connecting rod, and a second elastic part; the second locking module includes a locking body, a rotating shaft, and a baffle; two second support bodies are connected to the battery box; the positioning hole passes through the second support body; one end of the second elastic part is connected to a second support body, and the other end is connected to the first connecting rod; the first connecting rod passes through one positioning hole and the other positioning hole in sequence; the first connecting rod is movably connected to the second support body; one end of the second connecting rod is movably connected to the first connecting rod, and the other end is movably connected to the locking body; the locking body is connected to the baffle; one end of the rotating shaft is connected to the locking body, and the other end is rotatably connected to the first guide unit connected to the battery box.

[0024] The chassis battery swapping device also includes an unlocked state; the unlocked state includes the first connecting rod moving along the positioning hole toward the first guide unit, the movement of the first connecting rod driving the second elastic part to deform and exert a force on the second support body and the first connecting rod, the movement of the first connecting rod driving the second connecting rod to move, the movement of the second connecting rod driving the locking body to rotate around the rotating shaft, the rotation of the locking body driving the baffle to rotate, the baffle rotating to be spaced apart from the first guide unit connected to the beam.

[0025] In some embodiments, the first guide unit includes a first connecting portion, a first guide hole, and a first guide post; the first connecting portion is connected to the battery box; the first guide hole passes through the first connecting portion; one end of the first guide post is connected to the main beam, and the other end extends toward the battery box; the first connecting portion is rotatably connected to the rotating shaft.

[0026] The locking state also includes the first guide post passing through the first guide hole, and the baffle abutting against the end of the first guide post near the battery box, restricting the battery box from moving towards the beam.

[0027] In some embodiments, the guiding unit further includes a second guiding unit; the second guiding unit includes a second connecting portion, a second guiding hole, and a second guiding post; the second connecting portion is connected to the main beam; the second guiding hole passes through the second connecting portion; one end of the second guiding post is connected to the battery box, and the other end extends toward the main beam;

[0028] The locking state also includes the second guide post passing through the second guide hole, restricting the battery box from moving towards the direction away from the main beam.

[0029] In some embodiments, the battery box includes a frame unit and a battery unit; the frame unit includes a first frame assembly, a second frame assembly, and a third frame assembly; the battery unit includes three first battery packs, three second battery packs, a control unit, and a connecting unit; the first frame assembly forms a hollow frame; the second frame assembly forms a hollow frame; the third frame assembly forms a hollow frame; the first frame assembly, the second frame assembly, and the third frame assembly are connected sequentially; one first battery pack is disposed in the hollow frame formed by the first frame assembly; one first battery pack is disposed in the hollow frame formed by the second frame assembly; one first battery pack is disposed in the hollow frame formed by the third frame assembly; one second battery pack is disposed on a first side of the first frame assembly; one second battery pack is disposed on a first side of the second frame assembly; one second battery pack is disposed on a first side of the third frame assembly; the control unit is disposed in the hollow frame formed by the second frame assembly; the control unit is electrically connected to the first battery pack; the control unit is electrically connected to the second battery pack; the connecting unit is disposed on a first side of the second frame assembly; the connecting unit and the control unit are electrically connected.

[0030] To solve the problem of unstable connection between the battery box and the vehicle in the chassis battery swapping device, this utility model has the following advantages:

[0031] By configuring a first locking component and a second locking component, where part of the first locking component is connected to the main beam and the other part is connected to the battery box, the connection between the two parts restricts the battery box from moving away from the main beam. One end of the second locking component is movably connected to a first guide unit, and the other end is movably connected to the battery box. In the locked state, the part of the first guide unit connected to the main beam abuts against the second locking component, restricting the battery box from moving closer to the main beam. Thus, the first and second locking components restrict the movement of the battery box from both directions—away from and closer to the main beam—while the first guide unit of the guide component is detachably connected to ensure the relative position of the battery box and the main beam. When the vehicle is traveling on bumpy roads, this bidirectional restriction structure effectively prevents the battery box from bouncing upwards, avoiding insufficient constraint caused by locking in only one direction. This makes the locking between the battery box and the vehicle main beam more stable, solving the problem of insufficient locking stability in existing technologies and improving the reliability and safety of the battery box connection. Attached Figure Description

[0032] Figure 1 A schematic diagram of the chassis battery swapping device according to one embodiment is shown;

[0033] Figure 2 A partial schematic diagram of a chassis battery swapping device according to one embodiment is shown;

[0034] Figure 3 It shows Figure 2 A partial schematic diagram of the embodiment shown;

[0035] Figure 4 It shows Figure 3 A magnified view of part A in the diagram;

[0036] Figure 5 It shows Figure 3 A magnified view of part B in the diagram;

[0037] Figure 6 It shows Figure 3 A magnified view of part C in the diagram;

[0038] Figure 7 A cross-sectional schematic diagram of the first locking component is shown;

[0039] Figure 8 A schematic diagram of the rotating module is shown;

[0040] Figure 9 A schematic diagram of the structure of the first guide unit and the second locking assembly is shown;

[0041] Figure 10 Show Figure 9 A schematic diagram of the structure in the locked state.

[0042] Reference numerals: 10 Vehicle; 11 Vehicle body; 12 Main beam; 20 Battery box; 21 Frame unit; 211 First frame assembly; 212 Second frame assembly; 213 Third frame assembly; 22 Battery unit; 221 First battery pack; 222 Second battery pack; 23 Control unit; 24 Connecting unit; 30 Guide assembly; 31 First guide unit; 311 First connecting part; 312 First guide hole; 313 First guide post; 32 Second guide unit; 321 Second connecting part; 322 Second guide hole; 323 Second guide post; 40 First locking assembly; 41 First support unit; 411 Connecting seat; 412 Rubber ring; 413 First support part; 414 Second support part; 415 Rotating hole; 42 Rotating unit; 421 Rotating... Module; 4211 Rotating rod; 4212 First slide groove; 4213 First guide groove; 4214 Second slide groove; 4215 Second guide groove; 422 Drive module; 4221 Drive ring; 4222 Drive rod; 4223 Drive head; 4224 Limiting sleeve; 42241 Sleeve body; 42242 Limiting groove; 4225 First elastic part; 43 First locking unit; 431 Lock head; 432 Lock hole module; 4321 Lock hole body; 4322 Lock hole part; 50 Second locking assembly; 51 Second support module; 511 Second support body; 512 Positioning hole; 52 Conducting module; 521 First connecting rod; 522 Second connecting rod; 523 Second elastic part; 53 Second locking module; 531 Locking body; 532 Rotating shaft; 533 Baffle. Detailed Implementation

[0043] The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the present disclosure, and are not intended to imply any limitation on the scope of the disclosure.

[0044] As used herein, the term "comprising" and its variations are to be interpreted as open-ended terms meaning "including but not limited to". The term "based on" is to be interpreted as "at least partially based on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment". The term "another embodiment" is to be interpreted as "at least one other embodiment". The terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments and are not intended to limit the indicated devices, elements, or components to having a specific orientation or being constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientations or positional relationships; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances. In addition, the terms "installed", "set up", "equipped with", "connected", and "linked" should be interpreted broadly. 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 a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, elements, or components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Furthermore, 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 or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0045] In chassis-based battery swapping systems, the connection structure between the battery box 20 and the frame 12 typically only includes a locking component. Its primary function is to restrict the battery box 20 from moving away from the frame 12, preventing it from falling. However, when the vehicle 10 encounters bumpy roads, the impact force transmitted from the road surface causes the battery box 20 to tend to move closer to the frame 12, i.e., an upward movement. The existing connection structure only achieves locking in one direction through the locking component, without restricting the movement of the battery box 20 in the opposite direction (closer to the frame 12). This means the locking effect between the battery box 20 and the frame 12 can only prevent falling, but cannot withstand upward impact forces. Consequently, the locking state between the two is unstable, posing a potential risk of connection failure due to bumps in the battery box 20.

[0046] This embodiment provides a chassis battery swapping device, such as Figure 1 and Figure 2 As shown, the chassis battery swapping device may include a vehicle 10, a battery box 20, a guide assembly 30, a first locking assembly 40, and a second locking assembly 50.

[0047] Vehicle 10 may include a body 11 and a frame 12. The body 11 is connected to the frame 12, and the battery box 20 can be connected to the vehicle 10 via the frame 12. The guide assembly 30 may include a first guide unit 31. Part of the first guide unit 31 is connected to the frame 12; another part of the first guide unit 31 is connected to the battery box 20. Part of the first locking assembly 40 is connected to the frame 12, and another part of the first locking assembly 40 is connected to the battery box 20. One end of the second locking assembly 50 is movably connected to the first guide unit 31, and the other end is movably connected to the battery box 20.

[0048] The chassis battery swapping device may include a locked state. The locked state may include a detachable connection between a portion of the first guide unit 31 connecting the main beam 12 and a portion of the first guide unit 31 connecting the battery box 20. The portion of the first guide unit 31 connected to the main beam 12 abuts against a second locking assembly 50. The portion of the first locking assembly 40 connected to the main beam 12 passes through the portion of the first locking assembly 40 connected to the battery box 20. The portion of the first locking assembly 40 connecting the main beam 12 abuts against the portion of the first locking assembly 40 connecting the battery box 20. The battery box 20 is located on one side of the main beam 12. The first locking assembly 40 restricts the battery box 20 from moving away from the main beam 12, and the first guide unit 31 restricts the battery box 20 from moving closer to the main beam 12.

[0049] The first guide unit 31 is connected to both the main beam 12 and the battery box 20, thereby enabling guiding and positioning between the battery box 20 and the main beam 12. The two parts of the first locking assembly 40 connected to the main beam 12 and the battery box 20 respectively abut against each other in the locked state, connecting the main beam 12 and the battery box 20 and restricting the battery box 20 from moving away from the main beam 12. One end of the second locking assembly 50 is movably connected to the first guide unit 31, and the other end is movably connected to the battery box 20. In the locked state, the portion of the first guide unit 31 connected to the main beam 12 abuts against the portion of the second locking assembly 50 connected to the battery box 20, restricting the battery box 20 from moving closer to the main beam 12. This bidirectional restraint structure can constrain the movement of the battery box 20 from both opposite directions, avoiding the limitation of a single locking device only preventing the battery box 20 from falling, thus solving the problem of unstable locking caused by the upward bumping of the battery box 20, and achieving a stable connection between the battery box 20 and the main beam 12.

[0050] In this embodiment, as Figure 3 and Figure 6As shown, the first locking assembly 40 may include a first support unit 41, a rotating unit 42, and a first locking unit 43. One end of the first support unit 41 is connected to the main beam 12, and the other end is movably connected to the rotating unit 42. The end of the rotating unit 42 away from the first support unit 41 is connected to a portion of the first locking unit 43; the other portion of the first locking unit 43 is connected to the battery box 20. That is, the two parts of the first locking unit 43 are interconnected, which allows the battery box 20 and the main beam 12 to be connected.

[0051] The locking state also includes a portion of the first locking unit 43 connected to the rotating unit 42 being detachably connected to a portion of the first locking unit 43 connected to the battery box 20, wherein the first locking unit 43 restricts the battery box 20 from moving away from the main beam 12.

[0052] The first locking assembly 40 is decomposed into a first support unit 41, a rotating unit 42, and a first locking unit 43. The first support unit 41 is connected at one end to the main beam 12 and movably connected at the other end to the rotating unit 42, providing a mounting base for the rotating unit 42 and allowing it to rotate relative to the main beam 12. The rotating unit 42 connects to part of the first locking unit 43, and the other part of the first locking unit 43 connects to the battery box 20. In the locked state, the two are detachably connected, and the locking or unlocking action of the first locking unit 43 can be achieved by rotating the rotating unit 42. This structural design allows the first locking assembly 40 to restrict the movement of the battery box 20 away from the main beam 12 through mechanical linkage, improving the reliability and ease of operation of the locking mechanism and ensuring the connection stability of the battery box 20 in that direction.

[0053] In this embodiment, as Figure 6 As shown, the rotating unit 42 may include a rotating module 421 and a driving module 422. The rotating module 421 and the driving module 422 are movably connected. The first support unit 41 is rotatably connected to the rotating module 421. The first support unit 41 is connected to the driving module 422. The rotating module 421 is connected to a portion of the first locking unit 43, and the first locking unit 43 can rotate with the rotation of the rotating module 421.

[0054] The chassis battery swapping device may also include a battery swapping state. The battery swapping state includes the drive module 422 moving along the axial direction of the rotation module 421. The movement of the drive module 422 can drive the rotation module 421 to rotate. The rotation of the rotation module 421 can cause the portion of the first locking unit 43 connected to the rotation unit 42 to rotate relative to the portion of the first locking unit 43 connected to the battery box 20.

[0055] In the battery swapping state, the mechanical drive of the rotation module 421 by the drive module 422 can switch the first locking unit 43 to the locking state by rotation, restricting the battery box 20 to move away from the main beam 12, thus meeting the automated operation requirements of the locking mechanism during the battery swapping process and improving the battery swapping efficiency and structural stability.

[0056] In this embodiment, as Figure 7 and Figure 8 As shown, the rotating module 421 may include a rotating rod 4211, a first sliding groove 4212, a first guide groove 4213, a second sliding groove 4214, and a second guide groove 4215. The four first sliding grooves 4212 are evenly spaced along the circumference of the rotating rod 4211; the four first guide grooves 4213 are evenly spaced along the circumference of the rotating rod 4211; the four second sliding grooves 4214 are evenly spaced along the circumference of the rotating rod 4211; and the four second guide grooves 4215 are evenly spaced along the circumference of the rotating rod 4211. The second sliding grooves 4214, second guide grooves 4215, first guide grooves 4213, and first sliding grooves 4212 may be arranged sequentially along the length of the rotating rod 4211. A first slide groove 4212 can communicate with a first guide groove 4213; a second slide groove 4214 can communicate with a second guide groove 4215. A first guide groove 4213 can communicate with two adjacent second guide grooves 4215; a second guide groove 4215 can communicate with two adjacent first guide grooves 4213. The first support unit 41 and the rotating rod 4211 are rotatably connected. A portion of the first locking unit 43 and the end of the rotating rod 4211 away from the first support unit 41 are connected.

[0057] The drive module 422 may include a drive ring 4221, a drive rod 4222, a drive head 4223, a limiting sleeve 4224, and a first elastic part 4225. The limiting sleeve 4224 may include a sleeve body 42241 and a limiting groove 42242. One end of the drive rod 4222 is connected to the inner circumferential side of the drive ring 4221, and the other end extends towards the central axis of the drive ring 4221. The drive head 4223 is connected to and protrudes from the outer circumferential side of the drive ring 4221. The limiting groove 42242 is disposed on the inner circumferential side of the sleeve body 42241, and the limiting groove 42242 can be adapted to the shape of the drive head 4223, and the limiting groove 42242 can be slidably connected to the drive head 4223. The inner circumferential side of the sleeve body 42241 can be slidably connected to the outer circumferential side of the drive ring 4221. One end of the sleeve 42241 can be connected to the first support unit 41 to fix its position. A first elastic portion 4225 can be disposed in the hollow cavity between the sleeve 42241 and the rotating rod 4211. One end of the first elastic portion 4225 abuts against the first support unit 41, and the other end abuts against the end of the drive ring 4221 away from the first locking unit 43. The drive rod 4222 can be movably connected to the first sliding groove 4212. In another embodiment, the end of the drive rod 4222 near the central axis of the drive ring 4221 can abut against the first sliding groove 4212.

[0058] The battery swapping state may also include the portion of the first locking unit 43 connected to the battery box 20 moving axially along the rotating rod 4211. The movement of the portion of the first locking unit 43 connected to the battery box 20 can drive the drive head 4223 to move away from the first locking unit 43 in the limiting groove 42242. The movement of the drive head 4223 can drive the drive ring 4221 and the drive rod 4222 to move away from the first locking unit 43. The movement of the drive rod 4222 can drive the rotating rod 4211 to rotate. During the rotation of the rotating rod 4211, the drive rod 4222 moves in the first slide groove 4212, the first guide groove 4213, the second guide groove 4215, and the second slide groove 4214. The rotation of the rotating rod 4211 can drive the portion of the first locking unit 43 connected to the rotating rod 4211 to rotate relative to the portion of the first locking unit 43 connected to the battery box 20. The first locking unit 43 can rotate to a locked state, thereby restricting the battery box 20 from moving away from the main beam 12. During the movement of the drive head 4223 toward the drive ring 4221, the first elastic part 4225 is compressed, so that after the driving force disappears, the first elastic part 4225 can drive the drive head 4223 to reset.

[0059] By setting specifically distributed slots on the rotating rod 4211 of the rotating module 421 as a guide path, when the driving rod 4222 moves within the slots, there is an action and reaction force between the driving rod 4222 and the rotating rod 4211. The driving rod 4222 is fixed in position by the limiting sleeve 4224, so the rotating rod 4211 will rotate under the force of the driving rod 4222. This precise mechanical structure design realizes the linkage between the axial movement of the driving rod 4222 and the rotation of the rotating rod 4211, thereby ensuring the stable switching of the locking state by utilizing the stable rotation of the rotating rod 4211 during the battery swapping process, improving the stability and reliability of the mechanism operation.

[0060] In this embodiment, as Figure 6 and Figure 8 As shown, the first locking unit 43 may include a lock head 431 and a lock hole module 432. The lock hole module 432 may include a lock hole body 4321 and a lock hole portion 4322. The lock head 431 is connected to the end of the rotating rod 4211 away from the main beam 12, so that the lock head 431 can rotate with the rotation of the rotating rod 4211. The lock hole body 4321 is connected to the battery box 20, and the lock hole penetrates the side of the lock hole body 4321 near the main beam 12, and the lock hole body 4321 can form a hollow frame.

[0061] The locked state may also include the lock head 431 penetrating the lock hole and extending into the hollow frame formed by the lock hole body 4321, with the lock head 431 abutting against the lock hole body 4321, and the lock head 431 restricting the lock hole body 4321 from moving away from the main beam 12.

[0062] By designing the first locking unit 43 as two separate parts, with the lock head 431 connected to the rotating rod 4211 and the lock hole module 432 connected to the battery box 20, the lock head 431 and the lock hole can mechanically restrict the movement of the lock hole body 4321 (i.e., the battery box 20) away from the beam 12 in the locked state. This simple and reliable lock head 431 lock hole structure can provide effective mechanical restraint, ensuring the unidirectional constraint of the first locking assembly 40 on the battery box 20 in the locked state, and improving the structural strength and stability of the locking mechanism. In another embodiment, the lock hole and the lock head 431 can have the same shape, and the shapes of the lock hole and the lock head 431 are not centrally symmetrical figures. Thus, after the lock head 431 passes through the lock hole and rotates, the projection of the lock hole on the lock head 431 intersects with the lock head 431, and the lock head 431 can abut against the lock hole body 4321 and restrict the movement of the lock hole body 4321 away from the beam 12.

[0063] In this embodiment, as Figure 6As shown, the first support unit 41 may include a connecting seat 411, a rubber ring 412, a first support portion 413, a second support portion 414, and a rotating hole 415. The connecting seat 411 can be connected to the main beam 12. The first support portion 413 is connected to the connecting seat 411 and extends in a direction away from the connecting seat 411. The second support portion 414 is movably connected to the first support portion 413. One side of the rubber ring 412 abuts against the first support portion 413, and the other side abuts against the second support portion 414. The rotating hole 415 can pass through the second support portion 414 and is spaced apart from the first support portion 413. The rotating rod 4211 can pass through the rotating hole 415 and is rotatably connected to the second support portion 414.

[0064] The connection between the connecting seat 411 and the main beam 12 allows the first support part 413 connected to the connecting seat 411, the second support part 414 connected to the first support part 413, and the rotating rod 4211 connected to the second support part 414 to be fixed in position to the main beam 12. The first support part 413 and the second support part 414 are movably connected, and the rubber ring 412 between them can act as a buffer. The second support part 414 is provided with a rotating hole 415 for the rotating rod 4211 to pass through and rotate, providing support and a fulcrum for the rotating rod 4211. When the lock head 431 connected to the rotating rod 4211 is subjected to the impact force generated by the vehicle 10 bumping, the impact force can be transmitted to the rubber ring 412 through the rotating shaft 532 and the second support part 414, thereby using the elastic deformation of the rubber ring 412 to absorb the vibration impact during the vehicle 10's movement, reducing the rigid impact on the rotating rod 4211 and the locking mechanism.

[0065] In this embodiment, as Figure 3 and Figure 5 As shown, the second locking assembly 50 may include a second support module 51, a conduction module 52, and a second locking module 53. The second support module 51 can be connected to the battery box 20. One end of the conduction module 52 is movably connected to the second support module 51, and the other end is movably connected to the second locking module 53. The second locking module 53 is movably connected to the first guide unit 31 connected to the battery box 20.

[0066] like Figure 10 As shown, the locking state may also include the second locking module 53 abutting against part of the first guide unit 31 connecting the main beam 12, restricting the battery box 20 from moving towards the main beam 12.

[0067] The second locking component 50 provides unidirectional restriction to the battery box 20, which, together with the first locking component 40, provides restriction in the opposite direction, forming a bidirectional locking structure and improving the overall connection stability.

[0068] In this embodiment, as Figure 5As shown, the second support module 51 may include a second support body 511 and a positioning hole 512. Figure 9 and Figure 10 As shown, the transmission module 52 may include a first connecting rod 521, a second connecting rod 522, and a second elastic part 523. The second locking module 53 may include a locking body 531, a rotating shaft 532, and a baffle 533. Two second support bodies 511 can be connected to the battery box 20, and positioning holes 512 pass through the two second support bodies 511. One end of the second elastic part 523 is connected to a second support body 511, and the other end is connected to the first connecting rod 521. The first connecting rod 521 can pass through the two positioning holes 512 in sequence to achieve stable guidance. The connection point between the second elastic part 523 and the first connecting rod 521 can be set between the two positioning holes 512. The first connecting rod 521 and the second support body 511 are movably connected. One end of the second connecting rod 522 is movably connected to the first connecting rod 521, and the other end is movably connected to the locking body 531. The locking body 531 is connected to the baffle 533. One end of the rotating shaft 532 is connected to the locking body 531, and the other end is rotatably connected to the first guide unit 31 connected to the battery box 20.

[0069] The chassis battery swapping device may also include an unlocked state. For example... Figure 8 As shown, the unlocked state can include the first link 521 moving along the positioning hole 512 toward the direction of the first guide unit 31. The movement of the first link 521 drives the second elastic part 523 to deform, generating a force on the second support body 511 and the first link 521, thereby providing the conditions for the first link 521 to reset. The movement of the first link 521 can also drive the second link 522 to move. The movement of the second link 522 can drive the locking body 531 to rotate around the pivot 532. The rotation of the locking body 531 drives the baffle 533 to rotate. The baffle 533 can rotate to be spaced apart from the first guide unit 31 connected to the main beam 12. The first guide unit 31 is unrestricted, and the battery box 20 can move toward the direction of the main beam 12, so that the first locking unit 43 can also be unlocked.

[0070] By connecting the second locking module 53 and the first guiding unit 31, the guiding function and the locking function are integrated together, which can improve the convenience of operation and the reliability of the locking state during the battery swapping process.

[0071] In this embodiment, as Figure 3 and Figure 4As shown, the first guide unit 31 may include a first connecting portion 311, a first guide hole 312, and a first guide post 313. The first connecting portion 311 can be connected to the battery box 20, and the first guide hole 312 can pass through the first connecting portion 311. One end of the first guide post 313 can be connected to the main beam 12, and the other end extends towards the battery box 20. The first connecting portion 311 can be rotatably connected to the rotating shaft 532.

[0072] The locking state may also include the first guide post 313 penetrating the first guide hole 312, and the baffle 533 abutting against the end of the first guide post 313 near the battery box 20, thereby restricting the movement of the battery box 20 towards the main beam 12. In another embodiment, there may be multiple first guide units 31. Based on the cooperation between the multiple first guide posts 313 connecting the main beam 12 and the multiple first guide holes 312 connecting the battery box 20, precise positioning of the battery box 20 and the main beam 12 can be achieved.

[0073] This structural design, which combines guidance and limiting, not only ensures the positioning accuracy of the battery box 20 during installation, but also provides stable mechanical limiting through the contact between the baffle 533 and the guide post. Together with the second locking component 50, it effectively constrains the movement of the battery box 20 toward the main beam 12, thereby improving the stability and reliability of the overall connection.

[0074] In this embodiment, as Figure 3 and Figure 5 As shown, the guiding unit may further include a second guiding unit 32. The second guiding unit 32 may include a second connecting portion 321, a second guiding hole 322, and a second guiding post 323. The second connecting portion 321 may be connected to the main beam 12, and the second guiding hole 322 passes through the second connecting portion 321. One end of the second guiding post 323 may be connected to the battery box 20, and the other end extends towards the main beam 12. In another embodiment, the length of the second guiding post 323 may be greater than the length of the first guiding post 313, thus the second guiding post 323 can serve as a primary positioning element and a secondary positioning element. When locking, the second guiding post 323 first passes through the second guiding hole 322; when unlocking, the first guiding post 313 first exits the first guiding hole 312. The locking state may also include the second guiding post 323 passing through the second guiding hole 322, restricting the battery box 20 from moving towards the direction away from the main beam 12.

[0075] A second guide unit 32 is introduced in addition to the first guide unit 31, and a two-stage positioning device is set up. At the same time, the first guide unit 31 and the second guide unit 32 are aligned with the main beam 12 and the battery box 20 as references, which can greatly improve the positioning accuracy, improve the structural stability and reliability of the battery box 20 connection, and provide a precise mechanical reference for the locking action of the first locking component 40 and the second locking component 50.

[0076] In this embodiment, as Figure 2 As shown, the battery box 20 may include a frame unit 21 and a battery unit 22. The frame unit 21 may include a first frame assembly 211, a second frame assembly 212, and a third frame assembly 213. The battery unit 22 may include three first battery packs 221, three second battery packs 222, a control unit 23, and a connecting unit 24. The first frame assembly 211 can form a hollow frame; the second frame assembly 212 can form a hollow frame; and the third frame assembly 213 can form a hollow frame. The first frame assembly 211, the second frame assembly 212, and the third frame assembly 213 are connected sequentially. A first battery pack 221 may be disposed within the hollow frame formed by the first frame assembly 211; a first battery pack 221 may be disposed within the hollow frame formed by the second frame assembly 212; and a first battery pack 221 may be disposed within the hollow frame formed by the third frame assembly 213. A second battery pack 222 can be disposed on the first side of the first frame assembly 211; a second battery pack 222 can be disposed on the first side of the second frame assembly 212; a second battery pack 222 can be disposed on the first side of the third frame assembly 213. The battery box 20 is disposed at the bottom of the vehicle 10. The second battery pack 222 is supported by the frame unit 21 to maintain stability, and the replacement and maintenance of the second battery pack 222 are more convenient. The control unit 23 can be disposed in the hollow frame formed by the second frame assembly 212. The control unit 23 is electrically connected to the first battery pack 221; the control unit 23 is electrically connected to the second battery pack 222, so that the control unit 23 can detect the status of the battery cells 22 to control charging and discharging. The connection unit 24 is disposed on the first side of the second frame assembly 212. The connection unit 24 is electrically connected to the control unit 23, and the connection unit 24 can be point-connected to the battery cells 22 through the control unit 23. The first side includes the side of the battery box 20 close to the vehicle body 11. By modularly installing and integrating the circuit control of the battery pack, the internal space of the battery box 20 is rationally allocated, which facilitates the replacement and maintenance of the battery pack. At the same time, the battery unit 22 is uniformly managed by the control unit 23, which improves the overall structural integrity and electrical connection reliability of the battery box 20 and meets the vehicle 10's requirements for the safety and maintainability of the battery box 20.

[0077] In another embodiment, the main beam 12 may include a first beam and a second beam. A second battery pack 222 may be disposed between the first beam and the second beam. The second battery pack 222 may be disposed on the side of the first beam away from the second beam, and the second beam may be disposed on the side of the second beam away from the first beam. This maximizes the use of the space between the main beam 12 and the battery box 20, while increasing the height of the battery box 20 and reducing the possibility of the battery box 20 being damaged by flying debris such as gravel during driving, making the battery box 20 safer. At least one guide component 30, at least one first locking component 40, and at least one second locking component 50 may be disposed on the side of the first beam away from the second beam; at least one guide component 30, at least one first locking component 40, and at least one second locking component 50 may be disposed on the side of the second beam away from the first beam. Thus, the battery box 20 can be positioned and locked bidirectionally with the first beam and the second beam from both sides, ensuring the stability of the connection between the battery box 20 and the vehicle 10.

[0078] Those skilled in the art will understand that the above embodiments are specific examples of implementing this disclosure, and in practical applications, various changes can be made in form and detail without departing from the scope of this disclosure.

Claims

1. A battery swap device for a chassis, characterized by, The chassis battery swapping device includes: A vehicle, the vehicle comprising a body and a frame; the body and the frame are connected. Battery box; A guiding assembly, comprising a first guiding unit; a portion of the first guiding unit is connected to the main beam; and another portion of the first guiding unit is connected to the battery box. A first locking assembly, part of which is connected to the main beam, and another part of which is connected to the battery box; The second locking assembly has one end movably connected to the first guide unit and the other end movably connected to the battery box; The chassis battery swapping device includes a locked state; the locked state includes a detachable connection between the portion of the first guide unit connected to the main beam and the portion of the first guide unit connected to the battery box, the portion of the first guide unit connected to the main beam abutting against a second locking component, the portion of the first locking component connected to the main beam penetrating the portion of the first locking component connected to the battery box, the portion of the first locking component connected to the main beam abutting against the portion of the first locking component connected to the battery box, the battery box being disposed on one side of the main beam, the first locking component restricting the battery box from moving away from the main beam, and the first guide unit restricting the battery box from moving closer to the main beam.

2. The chassis battery swapping device according to claim 1, characterized in that, The first locking assembly includes a first support unit, a rotating unit, and a first locking unit; one end of the first support unit is connected to the main beam, and the other end is movably connected to the rotating unit; one end of the rotating unit away from the first support unit is connected to a portion of the first locking unit; the other portion of the first locking unit is connected to the battery box. The locking state also includes a detachable connection between the portion of the first locking unit connecting the rotating unit and the portion of the first locking unit connecting the battery box, wherein the first locking unit restricts the battery box from moving away from the main beam.

3. The chassis battery swapping device according to claim 2, characterized in that, The rotating unit includes a rotating module and a driving module; the rotating module and the driving module are movably connected; the first support unit and the rotating module are rotatably connected; the rotating module is connected to a portion of the first locking unit; the driving module is connected to the first support unit. The chassis battery swapping device includes a battery swapping state; the battery swapping state includes the drive module moving along the axial direction of the rotating module, the movement of the drive module driving the rotating module to rotate, and the rotation of the rotating module causing the portion of the first locking unit connected to the rotating unit to rotate relative to the portion of the first locking unit connected to the battery box.

4. A chassis battery swapping device according to claim 3, characterized in that, The rotating module includes a rotating rod, a first sliding groove, a first guide groove, a second sliding groove, and a second guide groove; four first sliding grooves are evenly spaced along the circumference of the rotating rod; four first guide grooves are evenly spaced along the circumference of the rotating rod; and four second sliding grooves are evenly spaced along the circumference of the rotating rod. Four second guide grooves are evenly spaced along the circumference of the rotating rod; the second slide groove, the second guide groove, the first guide groove, and the first slide groove are sequentially arranged along the length of the rotating rod; one first slide groove communicates with one first guide groove; one second slide groove communicates with one second guide groove; one first guide groove communicates with two adjacent second guide grooves; one second guide groove communicates with two adjacent first guide grooves; the first support unit and the rotating rod are rotatably connected; a portion of the first locking unit is connected to the end of the rotating rod away from the first support unit; The driving module includes a driving ring, a driving rod, a driving head, a limiting sleeve, and a first elastic part; the limiting sleeve includes a sleeve body and a limiting groove; one end of the driving rod is connected to the inner circumference of the driving ring, and the other end extends towards the central axis of the driving ring; the driving head is connected to the outer circumference of the driving ring; the limiting groove is disposed on the inner circumference of the sleeve body; the limiting groove is slidably connected to the driving head; the inner circumference of the sleeve body is slidably connected to the outer circumference of the driving ring; one end of the sleeve body is connected to the first support unit; the first elastic part is disposed in the hollow cavity between the sleeve body and the rotating rod, one end of the first elastic part abuts against the first support unit, and the other end abuts against the end of the driving ring away from the first locking unit; the driving rod is movably connected to the first sliding groove; The battery swapping state also includes the portion of the first locking unit connected to the battery box moving axially along the rotating rod. The movement of the portion of the first locking unit connected to the battery box drives the driving head to move away from the first locking unit in the limiting groove. The movement of the driving head drives the driving ring and the driving rod to move away from the first locking unit. The movement of the driving rod drives the rotating rod to rotate. During the rotation of the rotating rod, the driving rod moves in the first sliding groove, the first guide groove, the second guide groove, and the second sliding groove. The rotation of the rotating rod causes the portion of the first locking unit connected to the rotating rod to rotate relative to the portion of the first locking unit connected to the battery box.

5. A chassis battery swapping device according to claim 4, characterized in that, The first locking unit includes a lock head and a lock hole module; the lock hole module includes a lock hole body and a lock hole portion; the lock head is connected to the end of the rotating rod away from the main beam; the lock hole body forms a hollow frame; the lock hole body is connected to the battery box; the lock hole penetrates the side of the lock hole body near the main beam; The locking state also includes the lock head penetrating the lock hole and extending into the hollow frame formed by the lock hole body; the lock head abutting against the lock hole body; and the lock head restricting the lock hole body from moving away from the main beam.

6. A chassis battery swapping device according to claim 5, characterized in that, The first support unit includes a connecting seat, a rubber ring, a first support portion, a second support portion, and a rotating hole; the connecting seat is connected to the main beam; the first support portion is connected to the connecting seat and extends away from the connecting seat; the second support portion is movably connected to the first support portion; one side of the rubber ring abuts against the first support portion, and the other side abuts against the second support portion; the rotating hole passes through the second support portion; the rotating rod passes through the rotating hole; the rotating rod and the second support portion are rotatably connected.

7. A chassis battery swapping device according to claim 6, characterized in that, The second locking assembly includes a second support module, a conduction module, and a second locking module; the second support module is connected to the battery box; one end of the conduction module is movably connected to the second support module, and the other end is movably connected to the second locking module; the second locking module is movably connected to a portion of the first guide unit connected to the battery box. The locking state also includes the second locking module abutting against the portion of the first guide unit connected to the main beam, restricting the battery box from moving towards the main beam.

8. A chassis battery swapping device according to claim 7, characterized in that, The second support module includes a second support body and a positioning hole; the transmission module includes a first connecting rod, a second connecting rod, and a second elastic part; the second locking module includes a locking body, a rotating shaft, and a baffle; the two second support bodies are connected to the battery box; the positioning hole passes through the second support body; one end of the second elastic part is connected to a second support body, and the other end is connected to the first connecting rod; the first connecting rod passes through one positioning hole and the other positioning hole in sequence; the first connecting rod is movably connected to the second support body; one end of the second connecting rod is movably connected to the first connecting rod, and the other end is movably connected to the locking body; the locking body is connected to the baffle; one end of the rotating shaft is connected to the locking body, and the other end is rotatably connected to the first guide unit connected to the battery box. The chassis battery swapping device also includes an unlocked state; the unlocked state includes the first connecting rod moving along the positioning hole toward the first guide unit, the movement of the first connecting rod driving the second elastic part to deform and exert a force on the second support body and the first connecting rod, the movement of the first connecting rod driving the second connecting rod to move, the movement of the second connecting rod driving the locking body to rotate around the rotating shaft, the rotation of the locking body driving the baffle to rotate, the baffle rotating to be spaced apart from the first guide unit connected to the beam.

9. A chassis battery swapping device according to claim 8, characterized in that, The first guide unit includes a first connecting part, a first guide hole, and a first guide post; the first connecting part is connected to the battery box; the first guide hole passes through the first connecting part; one end of the first guide post is connected to the main beam, and the other end extends toward the battery box; the first connecting part is rotatably connected to the rotating shaft. The locking state also includes the first guide post passing through the first guide hole, and the baffle abutting against the end of the first guide post near the battery box, restricting the battery box from moving towards the beam.

10. A chassis battery swapping device according to claim 1, characterized in that, The guiding unit further includes a second guiding unit; the second guiding unit includes a second connecting part, a second guiding hole, and a second guiding post; the second connecting part is connected to the main beam; the second guiding hole passes through the second connecting part; one end of the second guiding post is connected to the battery box, and the other end extends toward the main beam; The locking state also includes the second guide post passing through the second guide hole, restricting the battery box from moving towards the direction away from the main beam.

11. A chassis battery swapping device according to claim 4, characterized in that, The battery box includes a frame unit and a battery unit; the frame unit includes a first frame assembly, a second frame assembly, and a third frame assembly; the battery unit includes three first battery packs, three second battery packs, a control unit, and a connecting unit; the first frame assembly forms a hollow frame; the second frame assembly forms a hollow frame; the third frame assembly forms a hollow frame; the first frame assembly, the second frame assembly, and the third frame assembly are connected sequentially; one first battery pack is disposed in the hollow frame formed by the first frame assembly; one first battery pack is disposed in the hollow frame formed by the second frame assembly; one first battery pack is disposed in the hollow frame formed by the third frame assembly. A second battery pack is disposed on the first side of the first frame assembly; A second battery pack is disposed on the first side of the second frame assembly; A second battery pack is disposed on the first side of the third frame assembly; The control unit is disposed within the hollow frame formed by the second frame assembly; the control unit is electrically connected to the first battery pack; the control unit is electrically connected to the second battery pack; the connection unit is disposed on the first side of the second frame assembly; The connection unit and the control unit are electrically connected.

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