Lithium ion battery structure

Abstract

The utility model belongs to a lithium ion battery structure in the technical field of new energy power. A plurality of groups of slot components are arranged on the inner wall of the battery box body (1), each group of slot components respectively comprises a first slot (2) and a second slot (3), the first slot (2) is positioned on the inner wall of one side of the battery box body (1), the second slot (3) is positioned on the inner wall of the other side of the battery box body (1), the battery pack (4) is connected onto a plug board (5), the length of the plug board (5) is smaller than that of the slot components, and the width of the plug board (5) is smaller than that of the inner wall of the battery box body. The lithium ion battery structure disclosed by the utility model is simple in structure, and when a part of the battery packs break down, the disassembly of other battery packs can be conveniently and quickly completed, the separation of the battery packs from the battery box body is realized, and the loss expansion is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of new energy power, and more specifically, relates to a lithium-ion battery structure. Background Art

[0002] In recent years, lithium batteries have been widely used in occasions with large power demands such as energy storage and ships. For these occasions, the existing technical solutions are designed through the levels of battery cells - packs - battery boxes. This design ensures the flexibility of voltage adaptation, and at the same time, the respective battery packs are separated accordingly, so as to delay the conduction of heat during thermal runaway. However, the existing battery packs are fixed to the battery rack by bolts and cannot be disassembled. This leads to the situation that after a fire occurs in one pack, it cannot be isolated from other battery packs in the same box, resulting in the spread of the fire and the aggravation of losses.

[0003] There is a technology with the name of "a battery box convenient for installation" and the publication number of "CN220527106U" in the prior art. This technology discloses a battery box convenient for installation, including a bottom plate and a number of baffle components arranged on the top of the bottom plate. The baffle components include a number of mounting columns, a number of sliders, a round rod, a lower plate, an upper plate, a number of first plug plates and a second plug plate. The inner surfaces of the number of mounting columns are respectively slidably connected with the outer surfaces of the number of sliders. The round rod is fixedly connected between the number of sliders and the outer surface thereof is rotatably connected with the inner surface of the lower plate. The bottom and top of the lower plate are respectively fixedly connected with the top of the second plug plate and the bottom of the upper plate. The utility model relates to the technical field of battery boxes. This battery box convenient for installation simplifies the installation operation of the baffles around the battery box, and at the same time, when the battery box needs to be put away, all the baffle components can be stacked together, which is easy to store. The integrated box body can also reduce the probability of loss of box body parts.

[0004] However, this technology does not involve the technical problems and technical solutions of the present application. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is: aiming at the deficiencies of the prior art, to provide a lithium-ion battery structure with a simple structure, which can conveniently and quickly complete the disassembly of other battery packs when some battery packs fail, realize separation from the battery box body, and avoid the expansion of losses.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the utility model is:

[0007] The utility model relates to a lithium-ion battery structure. A plurality of slot components are arranged on the inner wall of the battery box body. Each group of slot components respectively includes a first slot and a second slot. The first slot is located on one inner wall side of the battery box body, and the second slot is located on the other inner wall side of the battery box body. The battery pack is connected to the plug board. The length of the plug board is less than the length of the slot component, and the width of the plug board is less than the width of the inner wall of the battery box body.

[0008] A protruding first long strip is arranged on one inner wall side of the battery box body. The first slot is arranged on the inner side surface of the first long strip. A protruding second long strip is arranged on the other inner wall side of the battery box body. The second slot is arranged on the inner side surface of the second long strip.

[0009] The first slot and the second slot of each group of slot components have the same height, and the first slot and the second slot of each group of slot components are arranged in parallel.

[0010] Each plug board is configured to be inserted into the corresponding first slot and second slot.

[0011] The battery pack includes a connecting seat, and a bolt passes through the connecting seat to be connected to the plug board.

[0012] A first pin hole is arranged at the front part of the first slot, and a second pin hole is arranged at the front part of the second slot.

[0013] The first pin hole is configured to be able to insert a first positioning pin, and the second pin hole is configured to be able to insert a second positioning pin.

[0014] The battery box body and the first long strip are of an integral structure, and the battery box body and the second long strip are of an integral structure.

[0015] A first connecting block is arranged on the inner wall of the battery box body above the first long strip. The first positioning pin is movably inserted and connected to the first connecting block. A first limiting platform is arranged in the middle of the first positioning pin. A first spring is arranged on the first positioning pin above the first limiting platform. The upper part of the first spring abuts against the lower part of the first connecting block. A first lifting rod is arranged on the side surface of the first limiting platform.

[0016] A second connecting block is arranged on the inner wall of the battery box body above the second long strip. The second positioning pin is movably inserted and connected to the second connecting block. A second limiting platform is arranged in the middle of the second positioning pin. A second spring is arranged on the second positioning pin above the second limiting platform. The upper part of the second spring abuts against the lower part of the second connecting block. A second lifting rod is arranged on the side surface of the second limiting platform.

[0017] Adopting the technical solution of the utility model, the working principle and beneficial effects are as follows:

[0018] The lithium-ion battery structure described in the present utility model is provided with a battery box body, which is a structure for accommodating a battery pack. However, the battery pack is not directly placed and fixed inside the battery box body. Instead, a slot and a plug board need to cooperate. Specifically, a plurality of slot components are provided on the inner wall of the battery box body. The plurality of slot components can be arranged at intervals from top to bottom inside the battery box body. Each slot component includes a first slot and a second slot. The first slot is located on one inner wall of the battery box body, and the second slot is located on the other inner wall of the battery box body. A plug board can be inserted between the first slot and the second slot of each slot component. The battery pack is connected to the plug board. That is, after the plug board is inserted in place, the battery pack is located inside the battery box body and the battery pack is in a fixed state. The length of the plug board is less than the length of the slot component, which is convenient for the plug board to contract inside the battery box body after being inserted in place, and a certain space is reserved at the front end of the slot. The width of the plug board is less than the width of the inner wall of the battery box body, which is convenient for the plug board to be reliably inserted into the first slot and the second slot. One side of the battery box body is an opening, which is set as the operation side and is connected with a movable side plate. On the one hand, the movable side plate can be quickly opened to facilitate the fire fighting operation of the battery pack. On the other hand, the movable side plate is used to close the battery box body after being fixed. During installation, the plug board with the battery pack fixed is inserted into the first slot and the second slot of the corresponding slot component, and then the power cord of the battery pack is connected correspondingly. The electrical interface of the battery pack is preferably a quick plug interface to ensure that it can be quickly disconnected in case of emergency. When some battery packs have thermal runaway, the temperature detection of the battery will detect the high-temperature anomaly in the first time, and then the control component will issue a warning to the control room and cut off the power supply of the battery pack. After the fire fighters arrive at the scene, they open the connecting side plate on the operation side of the battery box body and release the limit of the positioning pin. Then the plug board can be quickly pulled out from the slot, and the battery pack can be separated from the battery box body before the heat affects the adjacent battery packs. Description of the Drawings

[0019] The following briefly describes the content expressed by each drawing in this specification and the marks in the drawings:

[0020] Figure 1 It is an axonometric structural schematic diagram of the lithium-ion battery structure described in the present utility model;

[0021] Figure 2 It is a front view structural schematic diagram of the lithium-ion battery structure described in the present utility model;

[0022] Figure 3 It is a partial structural schematic diagram of the lithium-ion battery structure described in the present utility model;

[0023] The labels in the attached drawings are respectively: 1. Battery box body; 2. First slot; 3. Second slot; 4. Battery pack; 5. Plug board; 6. First long strip; 7. Second long strip; 8. Connecting seat; 9. First pin hole; 10. Second pin hole; 11. First positioning pin; 12. Second positioning pin; 13. First connecting block; 14. First limiting platform; 15. First spring; 16. First lifting rod. Detailed implementation mode

[0024] The following is a further detailed description of the specific implementation mode of the present utility model, such as the shapes, structures of the various components involved, the mutual positions and connection relationships between the various parts, the functions of the various parts, and the working principles, etc., with reference to the attached drawings and through the description of the embodiments:

[0025] As shown in the attached Figure 1 drawing, Figure 2As shown in the figure, the utility model relates to a lithium-ion battery structure. Multiple groups of slot components are arranged on the inner wall of the battery box body 1. Each group of slot components respectively includes a first slot 2 and a second slot 3. The first slot 2 is located on one inner wall of the battery box body 1, and the second slot 3 is located on the other inner wall of the battery box body 1. The battery pack 4 is connected to the plug board 5. The length of the plug board 5 is less than the length of the slot component, and the width of the plug board 5 is less than the width of the inner wall of the battery box. For the deficiencies in the prior art, the above structure proposes an improved technical solution. When setting the structure, the battery box body 1 is set. The battery box body 1 is a structure for accommodating the battery pack 4, and the battery pack 4 is not directly placed and fixed in the battery box. Instead, it requires the cooperation of slots and plug boards. Specifically, multiple groups of slot components are arranged on the inner wall of the battery box body 1. The multiple groups of slot components can be arranged at intervals from top to bottom inside the battery box body. Each group of slot components respectively includes a first slot 2 and a second slot 3. The first slot 2 is located on one inner wall of the battery box body 1, and the second slot 3 is located on the other inner wall of the battery box body 1. A plug board can be inserted between the first slot 2 and the second slot 3 of each group of slot components. The battery pack 4 is connected to the plug board 5. That is, after the plug board is inserted in place, the battery pack is located inside the battery box, and the battery pack 4 is in a fixed state. The length of the plug board 5 is less than the length of the slot component, which is convenient for the plug board to contract inside the battery box body after being inserted in place, and a certain space is reserved at the front end of the slot. The width of the plug board 5 is less than the width of the inner wall of the battery box, which is convenient for the plug board to be reliably inserted into the first slot 2 and the second slot 3. One side of the battery box body 1 is an opening, which is set as the operation side and is connected to the movable side plate. On the one hand, the movable side plate can be quickly opened, which is convenient for the fire protection operation of the battery pack. On the other hand, the movable side plate is fixed to close the battery box body. During installation, the plug board with the battery pack 4 fixed is inserted into the first slot 2 and the second slot 3 of the corresponding slot component, and then the power cord of the battery pack is connected correspondingly. The electrical interface of the battery pack is preferably a quick-connect interface to ensure that it can be quickly disconnected in case of emergency. The lithium-ion battery structure described in the utility model has a simple structure. When some battery packs fail, it can conveniently and quickly complete the disassembly of other battery packs, realize separation from the battery box body, and avoid the expansion of losses.

[0026] A protruding first long strip 6 is arranged on one inner wall of the battery box body 1, and a first slot 2 is arranged on the inner side surface of the first long strip 6. A protruding second long strip 7 is arranged on the other inner wall of the battery box body 1, and a second slot 3 is arranged on the inner side surface of the second long strip 7. For the above structure, since the wall thickness of the battery box body is limited and it is inconvenient to directly set slots, the first long strip and the second long strip are set to correspondingly set the first slot and the second slot to ensure the reliable arrangement of the plug board and good load-bearing capacity of the plug board.

[0027] The first slot 2 and the second slot 3 of each group of slot components have the same height, and the first slot 2 and the second slot 3 of each group of slot components are arranged in parallel. Each plug board 5 is configured to be inserted into the corresponding first slot 2 and second slot 3. With the above structure, multiple groups of slot components are provided, and each group of slot components corresponds to a plug board 5, enabling the arrangement of multiple battery packs 4.

[0028] The battery pack 4 includes a connection seat 8, and a bolt passes through the connection seat 8 to connect with the plug board 5. With the above structure, the battery pack is fixedly connected to the plug board, and after the plug board is inserted into the first slot 2 and the second slot 3 of the corresponding slot components, its position is also fixed, meeting the fixing requirements of the battery pack.

[0029] A first pin hole 9 is provided at the front of the first slot 2, and a second pin hole 10 is provided at the front of the second slot 3. The first pin hole 9 is configured to be able to insert a first positioning pin 11, and the second pin hole 10 is configured to be able to insert a second positioning pin 12. With the above structure, after the plug board is inserted in place, in order to position the plug board, positioning pins are used in a supporting manner. The first positioning pin positions from one side, and the second positioning pin positions from the other side, reliably fixing the plug board.

[0030] The battery box body 1 and the first long strip 6 are of an integral structure, and the battery box body 1 and the second long strip 7 are of an integral structure. When manufacturing the battery box body 1, the long strips (the first long strip 6 and the second long strip 7) can be integrally processed on the inner wall of the battery box body to simplify the process and reduce costs. The slots (the first slot 2 and the second slot 3) are also integrally processed when manufacturing the battery box body 1.

[0031] As shown in the Figure 3 attachment, a first connection block 13 is provided on the inner wall of the battery box body 1 above the first long strip 6. The first positioning pin 11 is movably inserted and connected to the first connection block 13. A first limiting platform 14 is provided in the middle of the first positioning pin 11. A first spring 15 is provided on the first positioning pin 11 above the first limiting platform 14. The upper part of the first spring 15 abuts against the lower part of the first connection block 13. A first lifting rod 16 is provided on the side of the first limiting platform 14. A second connection block is provided on the inner wall of the battery box body 1 above the second long strip 7. The second positioning pin 12 is movably inserted and connected to the second connection block. A second limiting platform is provided in the middle of the second positioning pin 12. A second spring is provided on the second positioning pin 12 above the second limiting platform. The upper part of the second spring abuts against the lower part of the second connection block. The second limiting platform is provided with a second lifting rod on its side. The positioning pins on both sides are symmetrically arranged.

[0032] The lithium-ion battery structure described in the utility model, when the structure is set, a battery box 1 is set, and the battery box 1 is a structure for accommodating a battery pack 4, and the battery pack 4 is not directly placed and fixed in the battery box. Instead, a slot and a plug-in plate are required to cooperate. Specifically, multiple groups of slot components are set on the inner wall of the battery box 1, and the multiple groups of slot components can be set from top to bottom according to the gap inside the battery box, and each group of slot components includes a first slot 2 and a second slot 3, respectively, the first slot 2 is located on the inner wall of one side of the battery box 1, and the second slot 3 is located on the inner wall of the other side of the battery box 1. A plug-in plate can be inserted between the first slot 2 and the second slot 3 of each group of slot components, and the battery pack 4 is connected to the plug-in plate 5, that is, after the plug-in plate 5 is inserted in place, the battery pack 5 is located in the battery box 1, and the battery pack 4 is in a fixed state. The length of the plug-in plate 5 is less than the length of the slot component, so that the plug-in plate 5 can be retracted inside the battery box 1 after being inserted in place, and a certain space is reserved at the front end of the slot. The width of the plug-in plate 5 is less than the width of the inner wall of the battery box 1, so that the plug-in plate can be reliably inserted into the first slot 2 and the second slot 3. One side of the battery box 1 is open and set as the operating side, connected to the movable side panel. On the one hand, the movable side panel can be quickly opened to facilitate the firefighting operation of the battery pack. On the other hand, the movable side panel is used to close the battery box after being fixed. During installation, the plug-in board 5 with the battery pack 4 fixed is inserted into the first slot 2 and the second slot 3 of the corresponding slot assembly, and then the power cord of the battery pack 4 is connected accordingly. The electrical interface of the battery pack 4 is preferably a quick-plug interface to ensure that it can be quickly disconnected in an emergency.

[0033] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A lithium-ion battery structure, characterized in that: A plurality of slot components are arranged on the inner wall of the battery box (1), each slot component comprising a first slot (2) and a second slot (3), the first slot (2) being located on the inner wall of one side of the battery box (1), the second slot (3) being located on the inner wall of the other side of the battery box (1), the battery pack (4) being connected to the plug board (5), the length of the plug board (5) being less than the length of the slot component, and the width of the plug board (5) being less than the width of the inner wall of the battery box.

2. The lithium-ion battery structure according to claim 1, characterized in that: A protruding first strip (6) is provided on the inner wall of one side of the battery box (1), a first slot (2) is provided on the inner side of the first strip (6), and a protruding second strip (7) is provided on the inner wall of the other side of the battery box (1), a second slot (3) is provided on the inner side of the second strip (7).

3. The lithium-ion battery structure according to claim 1 or 2, characterized in that: The first slot (2) and the second slot (3) of each slot assembly have the same height, and the first slot (2) and the second slot (3) of each slot assembly are arranged in parallel.

4. The lithium-ion battery structure according to claim 3, characterized in that: Each plug-in board (5) is configured to be inserted into a corresponding first slot (2) and second slot (3).

5. The lithium-ion battery structure according to claim 1 or 2, characterized in that: The battery pack (4) comprises a connecting seat (8), and a bolt passes through the connecting seat (8) to be connected to the plug plate (5).

6. The lithium-ion battery structure according to claim 1 or 2, characterized in that: A first pin hole (9) is arranged at the front of the first slot (2), and a second pin hole (10) is arranged at the front of the second slot (3).

7. The lithium-ion battery structure according to claim 6, characterized in that: The first pin hole (9) is provided with a structure capable of inserting a first positioning pin (11), and the second pin hole (10) is provided with a structure capable of inserting a second positioning pin (12).

8. The lithium-ion battery structure according to claim 1 or 2, characterized in that: The battery box (1) and the first long strip (6) are an integrated structure, and the battery box (1) and the second long strip (7) are an integrated structure.

9. The lithium-ion battery structure according to claim 2, characterized in that: A first connecting block (13) is arranged on the inner wall of the battery box (1) above the first long strip (6); a first positioning pin (11) is movably plugged and connected to the first connecting block (13); a first limiting platform (14) is arranged in the middle of the first positioning pin (11); a first spring (15) is arranged on the first positioning pin (11) at the upper part of the first limiting platform (14); the upper part of the first spring (15) is pressed against the lower part of the first connecting block (13); and a first lifting rod (16) is arranged on the side of the first limiting platform (14).

10. The lithium-ion battery structure according to claim 2, characterized in that: A second connecting block is arranged on the inner wall of the battery box (1) above the second long strip (7), a second positioning pin (12) is movably plugged and connected to the second connecting block, a second limiting platform is arranged in the middle of the second positioning pin (12), a second spring is arranged on the second positioning pin (12) at the upper part of the second limiting platform, the upper part of the second spring is pressed against the lower part of the second connecting block, and a second lifting rod is arranged on the side of the second limiting platform.

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