Lithium battery module capable of automatically adjusting spacing

Abstract

The utility model provides a lithium battery module capable of automatically adjusting a distance, and belongs to the field of lithium battery modules, in order to solve the problem that a box body is inconvenient to disassemble and open conveniently, the lithium battery module comprises a protective shell, a mounting plate is fixedly connected in the protective shell, a first spring is fixedly connected in the mounting plate, a threaded rod is in threaded connection with a push block, and the push block is in threaded connection with the first spring. A cover plate is arranged on the protective shell, a clamping block is fixedly connected to the cover plate, a second spring is fixedly connected into the protective shell, and the other end of the second spring is fixedly connected with a limiting plate. Through the arranged clamping block, when the protective shell needs to be opened for overhaul and maintenance, pull rods on the two sides can be pulled to drive a limiting plate to move, the limiting plate can extrude a second spring when moving, and meanwhile the limiting plate can drive a stop block to retract into the protective shell so that the clamping block on the cover plate can be pulled out; and the cover plate is opened to overhaul the lithium battery pack in the protective shell, so that the overhaul efficiency is prevented from being influenced by disassembling a plurality of bolts.

Description

Technical Field

[0001] The utility model relates to the field of lithium battery modules, in particular to a lithium battery module with automatically adjustable spacing. Background Art

[0002] The world's energy and environmental protection situation is becoming increasingly tense. Batteries are becoming more and more popular as a power source. Lithium batteries have gradually become the first choice in the battery field due to their significant advantages such as high energy density, small size, light weight, environmental protection, no pollution, and no memory effect. A lithium battery pack refers to a battery pack with one or more lithium cells connected in parallel or series with specific functional output.

[0003] However, most lithium battery modules currently have the following problems:

[0004] 1. In existing lithium battery modules, the distance between lithium batteries is mostly uniform during operation. The short distance easily leads to heat accumulation in the battery, resulting in low heat dissipation efficiency. Long-term exposure to high temperature easily leads to short circuit damage of the battery pack, and it is inconvenient to automatically adjust the distance between the battery packs for heat dissipation.

[0005] Second, the existing lithium battery modules are mostly installed in a box for protection when in use. In order to ensure the firmness of the box during protection, they are mostly installed with multiple bolts. If the lithium battery module in the box is damaged and needs to be repaired and maintained, it is troublesome to disassemble the box, and the efficiency is low, and it is inconvenient to disassemble and open the box conveniently.

[0006] Therefore, we made improvements to this problem and proposed a lithium battery module with automatic spacing adjustment. Utility Model Content

[0007] The purpose of the utility model is to solve the current problems of automatically adjusting the distance between battery packs to dissipate heat and conveniently dismantling and opening the box.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A lithium battery module with automatically adjusted spacing is used to improve the above problems.

[0010] The specific application is as follows:

[0011] The invention comprises a protective shell, a mounting plate fixedly connected in the protective shell, a first spring fixedly connected in the mounting plate, a clamping plate fixedly connected at the other end of the first spring, a lithium battery pack is arranged in the mounting plate, a heat conducting plate fixedly connected in the mounting plate, a memory metal fixedly connected in the heat conducting plate, a rack fixedly connected on the memory metal, a connecting shaft rotatably connected in the protective shell, a transmission gear fixedly connected on the connecting shaft, a first bevel gear fixedly connected on the connecting shaft, the first bevel gear meshingly connected with the second bevel gear, a threaded rod fixedly connected on the second bevel gear, the threaded rod rotatably connected in the protective shell, a pushing block threadedly connected on the threaded rod, a cover plate is arranged on the protective shell, a card block is fixedly connected on the cover plate, a second spring is fixedly connected in the protective shell, and a limiting plate is fixedly connected at the other end of the second spring.

[0012] As a preferred technical solution of the present application, the first springs are equidistantly distributed on the clamping plate, and the side end surface of the clamping plate is in contact with the inner side surface of the mounting plate.

[0013] As a preferred technical solution of the present application, the memory metal is symmetrically distributed on the left and right sides of the heat conduction plate, and the memory metal corresponds one-to-one with the transmission gear through the rack.

[0014] As a preferred technical solution of the present application, the second bevel gears are symmetrically distributed on the left and right sides of the first bevel gear, and the second bevel gears correspond one-to-one with the pushing blocks through threaded rods.

[0015] As a preferred technical solution of the present application, the threaded rod is fixedly connected to the center of one side of the second bevel gear, and the side end face of the push block is in contact with the inner side face of the protective shell.

[0016] As a preferred technical solution of the present application, a stop block is fixedly connected to the limit plate, a pull rod is fixedly connected to the limit plate, and a side end face of the block is inclined.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] In the scheme of this application:

[0019] 1. Through the threaded rod, when the lithium battery pack reaches high temperature, the temperature can be transmitted to the memory metal through the heat conduction plate. When the memory metal is stimulated to expand by the high temperature, the memory metal can push the rack to move. When the rack moves, it can drive the connecting shaft to rotate through the transmission gear. When the connecting shaft rotates, it can drive the second bevel gear to rotate through the first bevel gear. When the second bevel gear rotates, it can drive the threaded rod to rotate. When the threaded rod rotates, it can drive the pushing block to move. When the pushing blocks on both sides move outward at the same time, the pushing blocks can push the lithium battery pack to move, and expand the distance between the lithium battery packs so as to dissipate heat according to usage.

[0020] 2. Through the provided card block, when the protective shell needs to be opened for inspection and maintenance, the pull rods on both sides can be pulled to drive the limit plate to move. The limit plate can squeeze the second spring when moving, and at the same time, the limit plate can drive the block back into the protective shell, so as to pull out the card block on the cover plate, open the cover plate to inspect the lithium battery pack in the protective shell, and avoid disassembling multiple bolts to affect the inspection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the overall three-dimensional structure of a lithium battery module with automatically adjusted spacing provided in this application;

[0022] Figure 2 A schematic diagram of the side view structure of the mounting plate of the lithium battery module with automatically adjusted spacing provided in the present application;

[0023] Figure 3 A schematic diagram of the top view of the protective shell of the lithium battery module with automatically adjusted spacing provided in the present application;

[0024] Figure 4 A schematic diagram of the side view structure of the thermal conductive plate of the lithium battery module with automatically adjusted spacing provided in the present application;

[0025] Figure 5 A schematic diagram of the memory metal side structure of the lithium battery module with automatically adjusted spacing provided in this application;

[0026] Figure 6 This is a schematic diagram of the side view structure of the card block of the lithium battery module with automatically adjusted spacing provided in the present application.

[0027] Markings in the figure: 1. Protective shell; 2. Mounting plate; 3. First spring; 4. Clamp; 5. Lithium battery pack; 6. Thermal conduction plate; 7. Memory metal; 8. Rack; 9. Transmission gear; 10. First bevel gear; 11. Second bevel gear; 12. Threaded rod; 13. Push block; 14. Cover plate; 15. Block; 16. Second spring; 17. Limit plate; 18. Stop block; 19. Pull rod; 20. Connecting shaft. DETAILED DESCRIPTION

[0028] To make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments.

[0029] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the present invention to be protected, but merely represents some embodiments of the present invention. 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.

[0030] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0032] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "upper", "lower", etc. is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product is usually placed when in use, or the orientation or position relationship commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present utility model 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 cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0033] Embodiment 1:

[0034] like Figure 1-6 As shown, this embodiment proposes a lithium battery module with automatically adjusted spacing, including a protective shell 1, a mounting plate 2 is fixedly connected in the protective shell 1, a first spring 3 is fixedly connected in the mounting plate 2, a clamping plate 4 is fixedly connected at the other end of the first spring 3, a lithium battery pack 5 is arranged in the mounting plate 2, a heat conducting plate 6 is fixedly connected to the mounting plate 2, a memory metal 7 is fixedly connected in the heat conducting plate 6, a rack 8 is fixedly connected to the memory metal 7, a connecting shaft 20 is rotatably connected in the protective shell 1, and a connecting shaft 20 is fixedly connected to the connecting shaft 20. A transmission gear 9 is provided, a first bevel gear 10 is fixedly connected to a connecting shaft 20, a second bevel gear 11 is meshedly connected to the first bevel gear 10, a threaded rod 12 is fixedly connected to the second bevel gear 11, the threaded rod 12 is rotatably connected in a protective shell 1, a push block 13 is threadedly connected to the threaded rod 12, a cover plate 14 is provided on the protective shell 1, a clamping block 15 is fixedly connected to the cover plate 14, a second spring 16 is fixedly connected in the protective shell 1, and a limiting plate 17 is fixedly connected to the other end of the second spring 16.

[0035] Embodiment 2:

[0036] The solution in Example 1 is further introduced below in combination with a specific working method, as described below:

[0037] like Figure 3 As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, the first springs 3 are evenly distributed on the clamp plate 4, and the side end surface of the clamp plate 4 is in contact with the inner side surface of the mounting plate 2, which can ensure that the multiple first springs 3 can smoothly push the clamp plate 4 to move, so as to push the lithium battery pack 5 through the clamp plate 4 to move and limit.

[0038] like Figure 4 As shown, as a preferred implementation, on the basis of the above-mentioned method, further, the memory metal 7 is symmetrically distributed on the left and right sides of the heat conduction plate 6, and the memory metal 7 corresponds one-to-one with the transmission gear 9 through the rack 8, which can ensure that the distance between the lithium battery packs 5 can be smoothly adjusted under the drive of the transmission gears 9 on both sides, so as to achieve real-time cooling.

[0039] like Figure 3 As shown, as a preferred embodiment, on the basis of the above method, further, the second bevel gear 11 is symmetrically distributed on the left and right sides of the first bevel gear 10, and the second bevel gear 11 corresponds to the push block 13 one by one through the threaded rod 12, which can ensure that when the threaded rods 12 on both sides rotate, the threaded rod 12 can drive the push block 13 to move smoothly, and the push block 13 can push the lithium battery pack 5 to move smoothly when moving.

[0040] like Figure 3 As shown, as a preferred embodiment, on the basis of the above method, further, the threaded rod 12 is fixedly connected to the center part of one side of the second bevel gear 11, and the side end face of the push block 13 is in contact with the inner side face of the protective shell 1, which can ensure that when the threaded rod 12 pushes the push block 13 to move, the push block 13 can move smoothly through the support of the inner side face of the protective shell 1.

[0041] like Figure 6 As shown, as a preferred embodiment, on the basis of the above method, further, a stop block 18 is fixedly connected to the limit plate 17, a pull rod 19 is fixedly connected to the limit plate 17, and the side end face of the clamping block 15 is inclined, which can ensure that the inclined clamping block 15 can push the stop block 18 to move smoothly.

[0042] Specifically, when the lithium battery module with automatic spacing adjustment is used: Figure 1-6When protecting the lithium battery pack 5 in use, the lithium battery pack 5 can be placed on the mounting plate 2 in the protective shell 1, and the lithium battery pack 5 pushes the clamping plate 4 to squeeze the first spring 3. Under the push of the first spring 3, the clamping plate 4 can be driven to clamp the lithium battery pack 5. When protection is needed, the block 15 on the cover plate 14 is inserted into the protective shell 1. When the block 15 moves down, it can push the stopper 18 to move through the inclined surface. When the stopper 18 moves, it can push the limit plate 17 to move. When the limit plate 17 moves, it can squeeze the second spring 16. After the block 15 moves to the bottom, the block 18 is not hindered by the push of the second spring 16. The stopper 18 on the limit plate 17 is driven to reset. After the stopper 18 is reset, it can block and limit the block 15 to prevent the cover plate 14 on the block 15 from falling off. The cover plate 14 cooperates with the protective shell 1 to protect the lithium battery pack 5. When the protected lithium battery pack 5 needs to be inspected and maintained, the pull rod 19 can be pulled to drive the limit plate 17 to move. The limit plate 17 can squeeze the second spring 16 when moving. At the same time, the limit plate 17 can pull the stopper 18 back into the protective shell 1. When the block 15 is unobstructed, the cover plate 14 and the block 15 can be pulled out of the protective shell 1, and the protective shell 1 is opened to inspect and maintain the lithium battery pack 5.

[0043] During use, if high temperature is generated between the lithium battery packs 5 and the distance between the lithium battery packs 5 needs to be adjusted, the high temperature between the lithium battery packs 5 can be transmitted to the memory metal 7 through the heat conducting plate 6, and the memory metal 7 expands and moves when heated. When the memory metal 7 expands, it can push the rack 8 to move. When the rack 8 moves, it can push the transmission gear 9 to drive the connecting shaft 20 to rotate. When the connecting shaft 20 rotates, it can drive the first bevel gear 10 to rotate at the same time. When the first bevel gear 10 rotates, it can drive the threaded rod 12 to rotate through the second bevel gear 11. When the threaded rod 12 rotates, it can push the pushing block 13 to move, and the two sides push When the blocks 13 move outward at the same time, the pushing block 13 can push the lithium battery pack 5 to move. When the lithium battery pack 5 moves, it can squeeze the first spring 3 through the clamping plate 4 to expand the distance between the lithium battery packs 5 and increase the distance between them for heat dissipation. When the temperature drops, the memory metal 7 is rolled up and reset to drive the rack 8 to reset at the same time. When the rack 8 moves, it can drive the threaded rod 12 to rotate in the opposite direction. The threaded rod 12 can drive the pushing block 13 to move in the opposite direction. After the lithium battery pack 5 is unobstructed, it is pushed by the first spring 3 and cooperates with the clamping plate 4 to drive the lithium battery pack 5 to reset, so as to adjust the temperature according to the temperature between the lithium battery packs 5.

[0044] The above embodiments are only used to illustrate the utility model but not to limit the technical solutions described in the utility model. Although the present invention has been described in detail with reference to the above embodiments, the utility model is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the utility model; and all technical solutions and improvements that do not deviate from the spirit and scope of the utility model are included in the scope of the claims of the utility model.

Claims

1. A lithium battery module with automatically adjustable spacing, comprising a protective shell (1), characterized in that: The protective shell (1) is fixedly connected with a mounting plate (2), the mounting plate (2) is fixedly connected with a first spring (3), the other end of the first spring (3) is fixedly connected with a clamping plate (4), a lithium battery pack (5) is arranged in the mounting plate (2), a heat conducting plate (6) is fixedly connected to the mounting plate (2), a memory metal (7) is fixedly connected to the heat conducting plate (6), a rack (8) is fixedly connected to the memory metal (7), a connecting shaft (20) is rotatably connected to the protective shell (1), a transmission gear (9) is fixedly connected to the connecting shaft (20), and the connecting shaft (20) is A first bevel gear (10) is fixedly connected to the protective shell (1), the first bevel gear (10) is meshingly connected to a second bevel gear (11), a threaded rod (12) is fixedly connected to the second bevel gear (11), the threaded rod (12) is rotatably connected in the protective shell (1), a push block (13) is threadedly connected to the threaded rod (12), a cover plate (14) is provided on the protective shell (1), a clamping block (15) is fixedly connected to the cover plate (14), a second spring (16) is fixedly connected in the protective shell (1), and the other end of the second spring (16) is fixedly connected to a limiting plate (17).

2. A lithium battery module with automatically adjustable spacing according to claim 1, characterized in that: The first springs (3) are equidistantly distributed on the clamping plate (4), and the side end surface of the clamping plate (4) is in contact with the inner side surface of the mounting plate (2).

3. The lithium battery module with automatically adjustable spacing according to claim 1, characterized in that: The memory metal (7) is symmetrically distributed on the left and right sides of the heat conduction plate (6), and the memory metal (7) corresponds one-to-one with the transmission gear (9) through the rack (8).

4. The lithium battery module with automatically adjustable spacing according to claim 1, characterized in that: The second bevel gears (11) are symmetrically distributed on the left and right sides of the first bevel gear (10), and the second bevel gears (11) correspond one-to-one to the pushing blocks (13) via the threaded rods (12).

5. The lithium battery module with automatically adjustable spacing according to claim 1, characterized in that: The threaded rod (12) is fixedly connected to the central part of one side of the second bevel gear (11), and the side end surface of the pushing block (13) is in contact with the inner side surface of the protective shell (1).

6. The lithium battery module with automatically adjustable spacing according to claim 1, characterized in that: A stopper (18) is fixedly connected to the limit plate (17), a pull rod (19) is fixedly connected to the limit plate (17), and a side end surface of the clamping block (15) is inclined.

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