A multi-channel liquid cooling heat dissipation system of a lithium battery pack

Abstract

The utility model discloses a kind of multi-channel liquid cooling heat dissipation systems of lithium battery pack, it is related to lithium battery pack technical field, including two support plates, two connecting plates are set between the side of two support plates, the inside of two connecting plates is equidistant and is provided with lithium battery body, the side of support plate is provided with mounting frame, the inside fixed connection of mounting frame has liquid cooling pipe, the bottom and top of water pump are separately fixedly connected with water inlet pipe and water outlet pipe, the side of support plate is provided with mounting assembly, and mounting assembly is used for fixed mounting frame.The utility model discloses a kind of multi-channel liquid cooling heat dissipation systems of lithium battery pack, by introducing mounting assembly, user only needs to rotate screw rod and threaded rod in turn, can quickly complete the separate installation and disassembly of liquid cooling mechanism.This simplifies the disassembly process of liquid cooling mechanism, so that maintenance personnel can be more quickly and easily maintain, significantly reduce the time wasted due to complex operation.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery pack technology, and in particular to a multi-channel liquid cooling heat dissipation system for lithium battery packs. Background Technology

[0002] Cylindrical lithium batteries can be classified according to the filling material into lithium iron phosphate batteries, lithium cobalt oxide batteries, lithium manganese oxide batteries, and cobalt-manganese hybrid batteries. They can also be classified according to the type of casing into steel-cased lithium batteries and polymer-cased lithium batteries. Different material systems have different advantages. Batteries are widely used in: laptops, digital cameras, lighting fixtures, toys, power tools, portable mobile energy sources and other fields.

[0003] Patent application CN220672688U discloses a double-layer liquid cooling module for a cylindrical lithium battery pack, comprising a placement plate and a support plate. Two support plates are fixedly connected to the placement plate on opposite sides. Limiting plates are fixedly connected to the top and bottom of the opposite sides of each support plate. Several positioning holes are formed on one side of each limiting plate, and a lithium battery body is fixedly connected to the inner wall of each positioning hole. Two water pumps are fixedly connected to the opposite sides of the support plates. This invention offers advantages in efficient heat dissipation and improved temperature uniformity. In practical use, the coordinated use of water pumps, outlet pipes, inlet pipes, and connecting pipes allows for uniform distribution of coolant throughout the cylindrical lithium battery pack, thereby improving temperature uniformity and helping to avoid temperature concentration and localized overheating, ultimately improving the battery pack's performance and lifespan.

[0004] However, the liquid cooling mechanism in this module is fixed to the support plate, which is inconvenient to disassemble. This makes it necessary to repair, clean or replace the liquid cooling mechanism during maintenance, which makes the disassembly process complicated and time-consuming, increasing maintenance costs and difficulty. To address the above problems, we have launched a multi-channel liquid cooling heat dissipation system for lithium battery packs. Utility Model Content

[0005] This utility model discloses a multi-channel liquid cooling heat dissipation system for lithium battery packs. It studies and improves upon the existing structure and its shortcomings, and provides a multi-channel liquid cooling heat dissipation system for lithium battery packs to achieve better practical value.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A multi-channel liquid cooling system for a lithium battery pack includes two support plates, two connecting plates between one side of the two support plates, lithium battery bodies equidistantly arranged inside the two connecting plates, a mounting frame on one side of each support plate, a liquid cooling pipe fixedly connected inside the mounting frame, a water pump on one side of each support plate, an inlet pipe and an outlet pipe fixedly connected to the bottom and top of the water pump respectively, and a mounting assembly on one side of each support plate for fixing the mounting frame.

[0008] The mounting assembly includes positioning rods, which are fixedly connected at equal intervals to one side of the support plate. Positioning holes are provided at equal intervals on one side of the mounting frame, and the outer side of the positioning rods is slidably connected to the inside of the positioning holes.

[0009] In a preferred embodiment, the mounting assembly further includes a mounting plate fixedly connected to one side of a support plate. A fixing frame is fixedly connected to one side of the mounting plate, and a mounting block is slidably connected to one side of the fixing frame. A through groove is provided on one side of the fixing frame, and a connector is fixedly connected to one side of the mounting block. A lead screw is rotatably connected to one side of the mounting plate, and the outer side of the lead screw is threadedly connected to the inner side of the connector.

[0010] In a preferred embodiment, a receiving groove is provided on one side of the mounting block, and a fixing plate is slidably connected inside the receiving groove. The top of the fixing plate is slidably connected to the top of the inner wall of the mounting frame. A slot is provided on one side of the inner wall of the mounting frame, and the outer side of the fixing plate is slidably connected to the inside of the slot. Limiting blocks are fixedly connected to the top and bottom of the fixing plate. Limiting grooves are provided at the top and bottom of the inner wall of the receiving groove, and the outer side of the limiting block is slidably connected to the inside of the limiting groove.

[0011] In a preferred embodiment, the mounting block is internally threaded with a threaded rod, and a trapezoidal groove is provided on one side of the fixing plate, with one side of the inner wall of the trapezoidal groove abutting against one end of the threaded rod.

[0012] In a preferred embodiment, a first spring is provided between one side of the fixing plate and one side of the inner wall of the trough.

[0013] In a preferred embodiment, a second spring is provided on the outer side of the lead screw.

[0014] The multi-channel liquid cooling heat dissipation system for lithium battery packs provided by this utility model has the following advantages:

[0015] Firstly, the liquid cooling mechanism is initially fixed by the positioning rod and positioning hole. By rotating the screw, the mounting block is moved so that one side of the fixing plate abuts against the mounting frame, further restricting the liquid cooling mechanism. Then, the threaded rod is rotated to move the fixing plate, so that one end of it is inserted into the mounting frame, further improving the fixing effect of the liquid cooling mechanism.

[0016] Secondly, by setting up installation components, users can quickly install and disassemble the liquid cooling mechanism by simply turning the lead screw and threaded rod in sequence. This simplifies the installation and disassembly steps of the liquid cooling mechanism, allowing maintenance personnel to perform maintenance more quickly and easily, and reducing the time wasted due to complicated procedures. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of a multi-channel liquid cooling system for a lithium battery pack proposed in this utility model.

[0018] Figure 2 This is a cross-sectional schematic diagram of a multi-channel liquid cooling system for a lithium battery pack proposed in this utility model.

[0019] Figure 3 This is a first exploded schematic diagram of a multi-channel liquid cooling heat dissipation system for a lithium battery pack proposed in this utility model.

[0020] Figure 4 This is a second exploded schematic diagram of a multi-channel liquid cooling heat dissipation system for a lithium battery pack proposed in this utility model.

[0021] Figure 5 This is a third exploded view of a multi-channel liquid cooling system for a lithium battery pack proposed in this utility model.

[0022] Figure 6 This utility model proposes a multi-channel liquid cooling heat dissipation system for lithium battery packs. Figure 2 Enlarged diagram of point A in the middle.

[0023] In the attached diagram: 1. Support plate; 2. Connecting plate; 3. Lithium battery body; 4. Mounting frame; 5. Liquid cooling pipe; 6. Water pump; 7. Inlet pipe; 8. Outlet pipe; 9. Positioning rod; 10. Positioning hole; 11. Mounting plate; 12. Fixing bracket; 13. Mounting block; 14. Through groove; 15. Lead screw; 16. Connector; 17. Container groove; 18. Fixing plate; 19. Slot; 20. Trapezoidal groove; 21. Threaded rod; 22. Limiting block; 23. First spring; 24. Second spring. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and marked in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0025] The multi-channel liquid cooling heat dissipation system for lithium battery packs disclosed in this utility model is mainly applied to lithium battery pack scenarios.

[0026] Reference Figures 1 to 6 A multi-channel liquid cooling heat dissipation system for a lithium battery pack includes: two support plates 1, two connecting plates 2 disposed between one side of the two support plates 1, lithium battery bodies 3 disposed equidistantly inside the two connecting plates 2, a mounting frame 4 disposed on one side of the support plate 1, a liquid cooling pipe 5 fixedly connected inside the mounting frame 4, a water pump 6 disposed on one side of the support plate 1, an inlet pipe 7 and an outlet pipe 8 fixedly connected to the bottom and top of the water pump 6 respectively, and a mounting assembly disposed on one side of the support plate 1 for fixing the mounting frame 4.

[0027] The mounting assembly includes a positioning rod 9, which is fixedly connected to one side of the support plate 1 at equal intervals. Positioning holes 10 are provided at equal intervals on one side of the mounting frame 4. The outer side of the positioning rod 9 is slidably connected to the inside of the positioning hole 10.

[0028] The mounting assembly also includes a mounting plate 11, which is fixedly connected to one side of the support plate 1. A fixing bracket 12 is fixedly connected to one side of the mounting plate 11, and a mounting block 13 is slidably connected to one side of the fixing bracket 12. A through groove 14 is provided on one side of the fixing bracket 12, and a connector 16 is fixedly connected to one side of the mounting block 13. A lead screw 15 is rotatably connected to one side of the mounting plate 11, and the outer side of the lead screw 15 is threadedly connected to the inner side of the connector 16.

[0029] A groove 17 is provided on one side of the mounting block 13. A fixing plate 18 is slidably connected inside the groove 17. The top of the fixing plate 18 is slidably connected to the top of the inner wall of the mounting frame 4. A slot 19 is provided on one side of the inner wall of the mounting frame 4. The outer side of the fixing plate 18 is slidably connected to the inside of the slot 19. Limiting blocks 22 are fixedly connected to the top and bottom of the fixing plate 18. Limiting grooves are provided at the top and bottom of the inner wall of the groove 17. The outer side of the limiting block 22 is slidably connected to the inside of the limiting groove.

[0030] The mounting block 13 has a threaded rod 21 internally connected to it. A trapezoidal groove 20 is provided on one side of the fixing plate 18. One side of the inner wall of the trapezoidal groove 20 abuts against one end of the threaded rod 21.

[0031] In the above technical solution, considering that the liquid cooling mechanism in the module is fixed on the support plate and is inconvenient to disassemble, maintenance requires repair, cleaning, or replacement, which makes the disassembly process of the liquid cooling mechanism complicated and time-consuming, increasing maintenance costs and work difficulty. To solve this problem, the specific operation is as follows: By setting the installation component, when installing the liquid cooling mechanism, the installation frame 4 is moved from top to the position between the support plate 1 and the fixed plate 18. Then, the positioning hole 10 of the installation frame 4 is aligned with the positioning rod 9 of the support plate 1 and inserted. Then, the screw 15 is rotated to drive the connector 16 and the installation block 13 to move to one side, thereby driving the fixed plate 18 inside the accommodating groove 17 to slowly enter the installation frame 4. Finally, one side of the fixed plate 18 will contact one side of the installation frame 4. Then, the threaded rod 21 is rotated to allow it to slowly enter the accommodating groove 17, while sliding on the trapezoidal groove 20. Along the inclined surface of the trapezoidal groove 20, push the fixing plate 18 into the cavity 17, so that one end of the fixing plate 18 slides on the top of the inner wall of the mounting frame 4 and finally enters the slot 19. Then fix it from the four corners of the mounting frame 4. Then assemble the support plate 1 and the connecting plate 2 with screws. Install the water pump 6 on the support plate 1 and install the inlet pipe 7 and outlet pipe 8. Install the lithium battery body 3 in the connecting plate 2. At the same time, a fan can be installed on one side of the lithium battery body 3. To maintain the liquid cooling mechanism, disassemble the support plate 1, the connecting plate 2, the lithium battery body 3 and the water pump 6 one by one. Then rotate the threaded rod 21 in the opposite direction to reset the fixing plate 18 and disengage it from the slot 19. Then rotate the screw 15 to drive the mounting block 13 to reset, so that the fixing plate 18 is separated from the mounting frame 4. Then remove the mounting frame 4 from the positioning rod 9 and move it upward to disassemble the liquid cooling mechanism for maintenance. By setting up the installation components, users can quickly install and disassemble the liquid cooling mechanism by simply turning the lead screw 15 and the threaded rod 21 in sequence. This simplifies the installation and disassembly steps of the liquid cooling mechanism, allowing maintenance personnel to perform maintenance more quickly and easily, and reducing the time wasted due to complicated procedures.

[0032] Reference Figures 1 to 6 In a preferred embodiment, a first spring 23 is provided between one side of the fixing plate 18 and one side of the inner wall of the groove 17; a second spring 24 is provided on the outer side of the lead screw 15; by providing the first spring 23, the fixing plate 18 can be quickly popped out during disassembly; by providing the second spring 24, the second spring 24 abuts against the connector 16, which can increase the frictional resistance between the fixing frame 12, the connector 16 and the lead screw 15, thereby preventing the threaded rod 21 from rotating and allowing the fixing plate 18 to provide a more stable fixing effect.

[0033] Working principle: During use, when installing the liquid cooling mechanism, move the mounting frame 4 from top to the position between the support plate 1 and the fixed plate 18. Then, align the positioning hole 10 of the mounting frame 4 with the positioning rod 9 of the support plate 1 and insert it. Then, rotate the screw 15 to move the connector 16 and the mounting block 13 to one side, thereby causing the fixed plate 18 inside the receiving groove 17 to slowly enter the mounting frame 4. Finally, one side of the fixed plate 18 will contact one side of the mounting frame 4. Then, rotate the threaded rod 21 to slowly enter the receiving groove 17, while sliding on the trapezoidal groove 20. Along the inclined surface of the trapezoidal groove 20, push the fixed plate 18 into the receiving groove 17, so that one end of the fixed plate 18 slides on the top of the inner wall of the mounting frame 4, and finally enters the slot 19, and then enters from the four corners of the mounting frame 4. After fixing the support plate 1 and connecting plate 2, assemble them with screws. Install the water pump 6 on the support plate 1 and install the inlet pipe 7 and outlet pipe 8. Install the lithium battery body 3 in the connecting plate 2. At the same time, a fan can be installed on one side of the lithium battery body 3. To maintain the liquid cooling mechanism, disassemble the support plate 1, connecting plate 2, lithium battery body 3 and water pump 6 one by one. Then rotate the threaded rod 21 in the reverse direction to reset the fixing plate 18 and disengage it from the slot 19. Then rotate the screw 15 to reset the mounting block 13, so that the fixing plate 18 is separated from the mounting frame 4. Then remove the mounting frame 4 from the positioning rod 9 and move it upward to disassemble the liquid cooling mechanism for maintenance. All contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0034] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A multi-channel liquid cooling heat dissipation system of lithium battery pack, comprising two support plates (1), characterized in that, Two connecting plates (2) are arranged between one side of the two support plates (1), lithium battery bodies (3) are equidistantly arranged in the two connecting plates (2), one side of the support plate (1) is provided with a mounting frame (4), a liquid cooling pipe (5) is fixedly connected inside the mounting frame (4), a water pump (6) is arranged on one side of the support plate (1), a water inlet pipe (7) and a water outlet pipe (8) are fixedly connected to the bottom and the top of the water pump (6) respectively, and a mounting assembly is arranged on one side of the support plate (1) and used for fixing the mounting frame (4); The mounting assembly comprises a positioning rod (9) which is equidistantly fixedly connected to one side of the support plate (1), and a positioning hole (10) is equidistantly formed in one side of the mounting frame (4), and the outer side of the positioning rod (9) is in sliding connection with the inner side of the positioning hole (10).

2. The multi-channel liquid cooling heat dissipation system of a lithium battery pack according to claim 1, characterized in that, The mounting assembly further comprises an installation plate (11) which is fixedly connected to one side of the support plate (1), a fixed frame (12) is fixedly connected to one side of the installation plate (11), a mounting block (13) is in sliding connection with one side of the fixed frame (12), a through slot (14) is formed in one side of the fixed frame (12), a connecting head (16) is fixedly connected to one side of the mounting block (13), and a lead screw (15) is rotatably connected to one side of the installation plate (11), and the outer side of the lead screw (15) is in threaded connection with the inner side of the connecting head (16).

3. The multi-channel liquid cooling heat dissipation system of lithium battery pack according to claim 2, characterized in that, One side of the mounting block (13) is provided with a containing groove (17), a fixed plate (18) is in sliding connection with the inner side of the containing groove (17), the top of the fixed plate (18) is in sliding connection with the top of the inner wall of the mounting frame (4), a clamping groove (19) is formed in one side of the inner wall of the mounting frame (4), the outer side of the fixed plate (18) is in sliding connection with the inner side of the clamping groove (19), the top and the bottom of the fixed plate (18) are both fixedly connected with a limiting block (22), the top and the bottom of the inner wall of the containing groove (17) are both provided with a limiting groove, and the outer side of the limiting block (22) is in sliding connection with the inner side of the limiting groove.

4. The multi-channel liquid cooling heat dissipation system of lithium battery pack according to claim 3, characterized in that, A threaded rod (21) is in threaded connection with the inner side of the mounting block (13), a trapezoidal groove (20) is formed in one side of the inner wall of the fixed plate (18), and one end of the threaded rod (21) abuts against one side of the inner wall of the trapezoidal groove (20).

5. The multi-channel liquid cooling heat dissipation system of lithium battery pack according to claim 4, characterized in that, A first spring (23) is arranged between one side of the fixed plate (18) and one side of the inner wall of the containing groove (17).

6. The multi-channel liquid cooling heat dissipation system of a lithium battery pack according to claim 5, characterized in that, The outer side of the lead screw (15) is provided with a second spring (24).

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