Novel battery replacement battery pack structure and use method thereof

Abstract

The invention discloses a novel battery replacing battery pack structure and a use method thereof, and the structure comprises a battery replacing frame mechanism which is provided with a locking mechanism, a guiding mechanism and a limiting mechanism; the battery pack structure is detachably connected with the battery replacing frame mechanism, the problem that bolts and nuts are damaged due to the fact that connecting bolts are repeatedly disassembled and assembled in the battery replacing process can be effectively solved, the risk that the battery pack or the battery replacing frame falls off due to the fact that the bolts are damaged is effectively reduced, meanwhile, the bolts do not need to be repeatedly replaced, the battery replacing cost is reduced, and resource waste is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of new energy batteries, and in particular relates to a novel battery pack structure for battery replacement and a method of using the same. Background Art

[0002] In the process of implementing the present invention, the inventors found that the prior art has at least the following problems:

[0003] Existing battery packs for battery swapping mainly adopt an upper hanging connection structure, in which the battery pack is fixed to the chassis beam of the vehicle body with bolts, or the battery pack is fixed to the battery swapping rack, which is fixed to the chassis beam of the vehicle body with bolts.

[0004] The above structures all need to disassemble and assemble the bolts on the beam when replacing the battery. However, repeated disassembly and assembly of the bolts will affect the corrosion resistance and strength of the bolts. Over time, the bolts are easily damaged. If they are not replaced in time, the bolts will break, causing the battery pack or the battery replacement rack to fall and be damaged. Regular replacement will increase the cost investment, and the replaced bolts cannot be reused, resulting in a waste of resources.

[0005] Repeated replacement of bolts will also cause damage to the welded nuts on the vehicle chassis beam. If the nuts are damaged after long-term use, and because the welded nuts are difficult to replace on the inside of the beam, it will bring great hidden dangers to later maintenance. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a new type of battery pack structure for battery replacement and its use method, which can effectively avoid the problem of damage to bolts and nuts caused by repeated disassembly and assembly of connecting bolts during battery replacement, effectively reduce the risk of battery pack or battery replacement rack falling due to bolt damage, and at the same time, there is no need to repeatedly replace bolts to reduce battery replacement costs and reduce waste of resources.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is: a new battery pack structure having:

[0008] A battery-changing frame mechanism, on which a locking mechanism, a guiding mechanism and a limiting mechanism are provided;

[0009] The battery pack structure is detachably connected to the battery replacement rack mechanism.

[0010] The battery exchange rack mechanism has a frame, and the frame has two first cross beams and two first longitudinal beams. The two first cross beams and the two first longitudinal beams enclose a frame; a connecting beam is also provided near the middle of the frame.

[0011] The locking mechanism comprises:

[0012] A lock, mounted on the frame;

[0013] A lock tongue, wherein the lock buckle is provided with a lock buckle;

[0014] A connecting plate, fixedly connected to the battery pack structure;

[0015] A lock shaft is arranged on the connecting plate, and the lock shaft can be inserted into the lock tongue.

[0016] The guide mechanism comprises:

[0017] A guide sleeve is fixedly mounted on the frame; the guide sleeve is provided with a guide tube;

[0018] A guide post is fixedly mounted on the battery pack structure, and the guide post can pass through the guide sleeve.

[0019] The limiting mechanism has:

[0020] A first limiting rod, disposed on the first crossbeam, the first limiting rod being capable of limiting two sides of the battery pack structure;

[0021] The second limiting rod is arranged on the first longitudinal direction, and the second limiting rod can limit the front and rear ends of the battery pack structure.

[0022] The first cross beam is also provided with a series of lifting ears, and the lifting ears can be fixedly connected to the vehicle body beam structure.

[0023] The battery pack structure has:

[0024] A lower box body capable of supporting a battery module;

[0025] A lower liquid cooling plate, arranged at the bottom of the lower box;

[0026] An upper liquid cooling plate, arranged on the upper part of the lower box; the upper liquid cooling plate can support the battery module;

[0027] The upper cover plate is connected to the lower box body and can cover the battery module.

[0028] The upper liquid cooling plate separates the battery pack structure into two parts, an upper part and an lower part; both the upper part and the lower part of the battery pack structure can be installed with battery modules.

[0029] The lower box body includes a left longitudinal beam, a right longitudinal beam, a front cross beam and a rear cross beam, which enclose the frame structure of the lower box body, and the lower liquid cooling plate constitutes the bottom plate of the lower box body; the upper cover plate is also provided with a groove, which is adapted to the connecting beam.

[0030] The method for using the novel battery pack structure includes the following steps:

[0031] 1) When installing the battery pack, first use the lifting mechanism to slowly move the battery pack closer to the battery swap rack. At the same time, use the guide buffer block of the battery swap rack and the inclined surface of the box cover to guide the battery pack into the appropriate position;

[0032] 2) Through the guide column on the battery pack and the guide sleeve on the battery swap rack, the battery is accurately placed in the corresponding position of the battery swap rack, thereby guiding the lock hook on the battery pack to connect with the lock body on the battery swap rack. Under the action of the pushing force from below, the lock hook and the lock body are locked to achieve the purpose of fixing;

[0033] 3) The lock body is equipped with a locking window, which will display green if in place and red if not in place. After checking through the window that all lock bodies are locked, the battery replacement can be completed;

[0034] 4) In the above process, the water tap and the power and communication sockets are repositioned under their own guide structures to ensure that they are accurately positioned;

[0035] 5) When disassembling, just hold the battery pack and unlock the lock body by pulling the wire to remove the battery pack.

[0036] One of the above technical solutions has the following advantages or beneficial effects: the battery pack is fixed with a locking hook, which has a simple structural principle and high strength, and can be replaced without disassembling bolts. It can effectively avoid the problem of damage to bolts and nuts caused by repeated disassembly and assembly of connecting bolts during battery replacement, and effectively reduce the risk of battery packs or battery replacement racks falling due to bolt damage. At the same time, there is no need to repeatedly replace bolts to reduce battery replacement costs and reduce resource waste. At the same time, since there is no need to disassemble and assemble bolts, the risk of damage to the beam nuts is reduced, maintenance costs are reduced, and resources are saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 A schematic diagram of the structure of a novel battery replacement pack provided in an embodiment of the present invention;

[0038] Figure 2 for Figure 1 A schematic diagram of the structure of a new battery replacement battery pack;

[0039] Figure 3 for Figure 1 A schematic diagram of the structure of a new battery replacement battery pack;

[0040] Figure 4 for Figure 1 A schematic diagram of the structure of a new battery replacement battery pack;

[0041] Figure 5 for Figure 1 A schematic diagram of the structure of a new battery replacement battery pack;

[0042] Figure 6 for Figure 1 A schematic diagram of the structure of a new battery replacement battery pack;

[0043] Figure 7 for Figure 1 A schematic diagram of the structure of a new battery replacement battery pack;

[0044] Figure 8 for Figure 1 A schematic diagram of the structure of a new battery replacement battery pack;

[0045] Fig. 9 for Figure 1 A schematic diagram of the structure of a new battery replacement battery pack;

[0046] Fig.10 for Figure 1 A schematic diagram of the structure of a new battery replacement battery pack;

[0047] Fig.11 for Figure 1 A schematic diagram of the structure of a new battery replacement battery pack;

[0048] Fig.12 for Figure 1 A schematic diagram of the structure of a new battery replacement battery pack;

[0049] The marks in the above figure are:

[0050] 1. Battery pack structure, 11. Lower box, 111. Left longitudinal beam, 112. Right longitudinal beam, 113. Front cross beam, 114. Rear cross beam, 115. Middle cross beam, 116. Upper step, 12. Lower liquid cooling plate, 13. Upper liquid cooling plate, 14. Upper cover, 141. Groove, 15. Battery module, 16. BMS module, 17. Quick-change socket;

[0051] 2. battery exchange rack mechanism, 21. first cross beam, 22. first longitudinal beam, 23. connecting beam;

[0052] 24. locking mechanism, 241. lock buckle, 242. lock tongue, 243. connecting plate, 244. lock shaft;

[0053] 25. Guide mechanism, 251. Guide column, 252. Guide sleeve;

[0054] 26. Limiting mechanism, 261. First limiting rod, 262. Second limiting rod;

[0055] 27. Hanging ears. DETAILED DESCRIPTION

[0056] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0057] See also Figures 1 to 12 A new type of battery pack structure 1 for battery replacement has: a battery replacement frame mechanism 2, on which a locking mechanism 24, a guide mechanism 25 and a limit mechanism 26 are provided; a battery pack structure 1 is detachably connected to the battery replacement frame mechanism 2. It can effectively avoid the problem of damage to bolts and nuts caused by repeated disassembly and assembly of connecting bolts during battery replacement, effectively reduce the risk of battery packs or battery replacement frames falling due to bolt damage, and at the same time, it does not need to repeatedly replace bolts to reduce battery replacement costs and reduce resource waste. At the same time, since there is no need to disassemble and assemble bolts, the risk of damage to the beam nuts is reduced, maintenance costs are reduced, and resources are saved.

[0058] The battery swap rack mechanism 2 has a frame, and the frame has two first cross beams 21 and two first longitudinal beams 22. The two first cross beams 21 and the two first longitudinal beams 22 enclose a frame; a connecting beam 23 is also provided near the middle of the frame. The battery swap rack mechanism 2 adopts a frame structure, which is easy to process and has a stable and reliable structure.

[0059] The locking mechanism 24 comprises: a lock buckle 241 mounted on the frame; a lock tongue 242, on which the lock buckle 241 is provided; a connecting plate 243 fixedly connected to the battery pack structure 1; and a lock shaft 244, which is arranged on the connecting plate 243 and can be inserted into the lock tongue 242. The lock buckle 241 adopts a standard lock buckle 241 structure.

[0060] The guide mechanism 25 comprises: a guide sleeve 252 fixedly mounted on the frame; a guide tube provided on the guide sleeve 252; and a guide column 251 fixedly mounted on the battery pack structure 1, and the guide column 251 can pass through the guide sleeve 252. It plays a guiding role in the process of installing the battery pack on the battery exchange rack.

[0061] The battery swap rack is equipped with lock body structures and guide sleeve structures on both sides to receive the battery pack lock hooks and fix them; the battery pack is equipped with lock hook structures and guide pin structures on both sides to connect the battery pack and the battery swap rack, playing the role of locking and guiding.

[0062] The upper part of the battery pack box cover is arranged with vertical power supply, communication sockets and water connection quick-change sockets 17, and the battery swap rack or the vehicle body is also arranged with plug-in connectors to facilitate battery pack replacement; the battery swap rack is arranged with a guide block structure to effectively guide the battery pack water nozzle and power supply plug-in.

[0063] The limiting mechanism 26 comprises: a first limiting rod 261, which is arranged on the first crossbeam 21 and can limit the two sides of the battery pack structure 1; a second limiting rod 262, which is arranged on the first longitudinal axis and can limit the front and rear ends of the battery pack structure 1. The first limiting rod 261 and the second limiting rod 262 play a limiting role in the process of installing the battery pack.

[0064] A series of lifting lugs 27 are also provided on the first cross beam 21, and the lifting lugs 27 can be fixedly connected to the vehicle body beam structure. The battery swapping rack is connected and fixed to the vehicle body beam by the lifting lugs 27, and does not need to be repeatedly disassembled and assembled.

[0065] The battery pack structure 1 comprises: a lower box 11, which can support a battery module 15; a lower liquid cooling plate 12, which is arranged at the bottom of the lower box 11; an upper liquid cooling plate 13, which is arranged at the upper part of the lower box 11; the upper liquid cooling plate 13 can support the battery module 15; and an upper cover plate 14, which is connected to the lower box 11 and can cover the battery module 15. The upper liquid cooling plate 13 separates the battery pack structure 1 into two parts, upper and lower; both the upper and lower parts of the battery pack structure 1 can be installed with a battery module 15. With a double-layer arrangement, the box integrates liquid cooling and PTC functions to meet the needs of high power, integrated cooling and heating.

[0066] The lower box 11 includes a left longitudinal beam 111, a right longitudinal beam 112, a front cross beam 113 and a rear cross beam 114, which enclose the frame structure of the lower box 11, and the lower liquid cooling plate 12 constitutes the bottom plate of the lower box 11; the upper cover plate 14 is also provided with a groove 141, which is adapted to the connecting beam 23. The lower box 11 adopts a frame structure, which is easy to process and has a stable and reliable structure.

[0067] Structural features:

[0068] 1. The battery swap rack is connected and fixed to the vehicle body beam by a lifting lug, and does not need to be repeatedly disassembled and assembled;

[0069] 2. Lock body structures and guide sleeve structures are arranged on both sides of the battery swap rack to receive the battery pack lock hook for fixation;

[0070] 3. Lock hook structures and guide pin structures are installed on both sides of the battery pack to connect the battery pack and the battery swap rack;

[0071] 4. The upper part of the battery pack cover is equipped with vertical power supply, communication sockets and water connection quick-change sockets, and the battery replacement rack or the vehicle body is also equipped with plug-in connectors to facilitate battery replacement;

[0072] 5. The battery swap rack is equipped with a guide block structure to effectively guide the battery pack water nozzle and power plug-in;

[0073] 6. When installing the battery pack, first use the upper support mechanism to slowly move the battery pack closer to the battery swap rack. At the same time, use the guide buffer block of the battery swap rack and the inclined surface of the box cover to guide the battery pack into the appropriate position.

[0074] 7. Through the positioning pins on the battery pack and the positioning sleeves on the battery swap rack, the battery is accurately placed in the corresponding position of the battery swap rack, thereby guiding the lock hook on the battery pack to connect with the lock body on the battery swap rack. Under the action of the pushing force from below, the lock hook and the lock body are locked to achieve the purpose of fixing;

[0075] 8. The lock body is equipped with a locking window, which will display green if in place and red if not in place. After checking that all lock bodies are locked through the window, the battery replacement can be completed;

[0076] 9. In the above process, the water faucet and the power and communication sockets are repositioned under their own guide structures to ensure their accurate positioning;

[0077] 10. When disassembling, just hold the battery pack and unlock the lock body by pulling the wire to remove the battery pack. There is no need to remove or install bolts during the whole process.

[0078] The method for using the novel battery pack structure includes the following steps:

[0079] 1) When installing the battery pack, first use the lifting mechanism to slowly move the battery pack closer to the battery swap rack. At the same time, use the guide buffer block of the battery swap rack and the inclined surface of the box cover to guide the battery pack into the appropriate position;

[0080] 2) Through the guide column on the battery pack and the guide sleeve on the battery swap rack, the battery is accurately placed in the corresponding position of the battery swap rack, thereby guiding the lock hook on the battery pack to connect with the lock body on the battery swap rack. Under the action of the pushing force from below, the lock hook and the lock body are locked to achieve the purpose of fixing;

[0081] 3) The lock body is equipped with a locking window, which will display green if in place and red if not in place. After checking through the window that all lock bodies are locked, the battery replacement can be completed;

[0082] 4) In the above process, the water tap and the power and communication sockets are repositioned under their own guide structures to ensure that they are accurately positioned;

[0083] 5) When disassembling, just hold the battery pack and unlock the lock body by pulling the wire to remove the battery pack.

[0084] After adopting the above structure, the battery pack is fixed with a locking hook. The structural principle is simple and the strength is high. The battery can be replaced without disassembling the bolts. It can effectively avoid the problem of damage to the bolts and nuts caused by repeated disassembly and assembly of the connecting bolts during the battery replacement process, and effectively reduce the risk of the battery pack or the battery replacement rack falling due to bolt damage. At the same time, there is no need to repeatedly replace the bolts to reduce the cost of battery replacement and reduce resource waste. At the same time, since there is no need to disassemble and assemble the bolts, the risk of damage to the beam nuts is reduced, the maintenance cost is reduced, and resources are saved.

[0085] In the description of the present invention, it is necessary to understand that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0086] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0087] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new type of battery pack structure, characterized in that: have: A battery-changing frame mechanism, on which a locking mechanism, a guiding mechanism and a limiting mechanism are provided; The battery pack structure is detachably connected to the battery replacement rack mechanism.

2. The novel battery pack structure for battery replacement according to claim 1 is characterized in that: The battery exchange rack mechanism has a frame, and the frame has two first cross beams and two first longitudinal beams. The two first cross beams and the two first longitudinal beams enclose a frame; a connecting beam is also provided near the middle of the frame.

3. The novel battery pack structure for battery replacement as claimed in claim 2 is characterized in that: The locking mechanism comprises: A lock, mounted on the frame; A lock tongue, wherein the lock buckle is provided with a lock buckle; A connecting plate, fixedly connected to the battery pack structure; A lock shaft is arranged on the connecting plate, and the lock shaft can be inserted into the lock tongue.

4. The novel battery pack structure for battery replacement as claimed in claim 3 is characterized in that: The guide mechanism comprises: A guide sleeve is fixedly mounted on the frame; the guide sleeve is provided with a guide tube; A guide post is fixedly mounted on the battery pack structure, and the guide post can pass through the guide sleeve.

5. The novel battery pack structure for battery replacement as claimed in claim 4 is characterized in that: The limiting mechanism has: A first limiting rod, disposed on the first crossbeam, the first limiting rod being capable of limiting two sides of the battery pack structure; The second limiting rod is arranged on the first longitudinal direction, and the second limiting rod can limit the front and rear ends of the battery pack structure.

6. The novel battery pack structure for battery replacement as claimed in claim 5 is characterized in that: The first cross beam is also provided with a series of lifting ears, and the lifting ears can be fixedly connected to the vehicle body beam structure.

7. The novel battery pack structure for battery replacement as claimed in claim 6 is characterized in that: The battery pack structure has: A lower box body capable of supporting a battery module; A lower liquid cooling plate, arranged at the bottom of the lower box; An upper liquid cooling plate, arranged on the upper part of the lower box; the upper liquid cooling plate can support the battery module; The upper cover plate is connected to the lower box body and can cover the battery module.

8. The novel battery pack structure for battery replacement as claimed in claim 7 is characterized in that: The upper liquid cooling plate separates the battery pack structure into two parts, an upper part and an lower part; both the upper part and the lower part of the battery pack structure can be installed with battery modules.

9. The novel battery pack structure for battery replacement as claimed in claim 8, characterized in that: The lower box body includes a left longitudinal beam, a right longitudinal beam, a front cross beam and a rear cross beam, which enclose the frame structure of the lower box body, and the lower liquid cooling plate constitutes the bottom plate of the lower box body; the upper cover plate is also provided with a groove, which is adapted to the connecting beam.

10. The method for using the new battery pack structure according to any one of claims 1 to 9, characterized in that: The steps include: 1) When installing the battery pack, first use the lifting mechanism to slowly move the battery pack closer to the battery swap rack. At the same time, use the guide buffer block of the battery swap rack and the inclined surface of the box cover to guide the battery pack into the appropriate position; 2) Through the guide column on the battery pack and the guide sleeve on the battery swap rack, the battery is accurately placed in the corresponding position of the battery swap rack, thereby guiding the lock hook on the battery pack to connect with the lock body on the battery swap rack. Under the action of the pushing force from below, the lock hook and the lock body are locked to achieve the purpose of fixing; 3) The lock body is equipped with a locking window, which will display green if in place and red if not in place. After checking through the window that all lock bodies are locked, the battery replacement can be completed; 4) In the above process, the water tap and the power and communication sockets are repositioned under their own guide structures to ensure that they are accurately positioned; 5) When disassembling, just hold the battery pack and unlock the lock body by pulling the wire to remove the battery pack.

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