Battery pack structure

Abstract

The utility model relates to the technical field of batteries, in particular to a battery pack structure which comprises a battery box and a plurality of battery modules, the battery modules are densely distributed in the battery box in an array mode, each battery module comprises a battery box and a cover body, an opening is formed in one side of the battery box, a plurality of partition plates are arranged in an inner cavity of the battery box, and the partition plates are arranged in the battery box. A plurality of partition plates are arranged in the groove, each partition plate divides the groove into a plurality of storage grids, each storage grid is respectively provided with a first battery monomer and a second battery monomer, the first battery monomers positioned in each storage grid are positioned on the same straight line, and the first battery monomers are respectively and electrically connected through first connecting pieces. According to the utility model, the first battery monomers and the second battery monomers are vertically arranged in the battery box, and the first battery monomers positioned on the same straight line and the second battery monomers positioned on the same straight line are connected through the connecting pieces, so that the connecting mode is optimized, the connecting process is efficient and rapid, and the assembly efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, specifically to a battery pack structure. Background Technology

[0002] Currently, in energy storage applications such as base station energy storage, multiple battery units are often connected in parallel to form a battery module, and multiple battery modules are connected in series to form a battery pack in order to provide sufficient capacity to meet the needs of backup power, peak shaving and valley filling.

[0003] Traditional battery packs contain multiple battery cells, each with multiple positive and negative terminals. Connecting the positive and negative terminals of the battery cells in series requires various wires of different sizes, making the wiring between battery cells relatively complex and resulting in low assembly efficiency.

[0004] In view of this, the applicant has conducted in-depth research on the above-mentioned issues, which led to this case. Utility Model Content

[0005] The purpose of this invention is to provide a battery pack structure with high assembly efficiency.

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

[0007] A battery pack structure includes a battery box with an opening at the top and battery modules disposed in the battery box. Multiple battery modules are arranged in an array within the battery box. Each battery module includes a battery housing and a cover. Within the same battery module, an opening is formed on one side of the battery housing, and the cover covers the opening. The inner cavity of the battery box is provided with multiple horizontally arranged partitions, each partition dividing the inner cavity into multiple storage compartments. Each storage compartment is respectively equipped with a first battery cell and a second battery cell. The first and second battery cells located in the same storage compartment are arranged side-by-side along the length of the opening of the corresponding storage compartment. The first battery cells in each storage compartment are located on the same straight line, and the second battery cells in each storage compartment are located on the same straight line. The first battery cells on the same straight line are electrically connected to each other via a first connector, and the second battery cells on the same straight line are electrically connected to each other via a second connector.

[0008] As an improvement of this utility model, each of the first connecting members includes a first connecting plate, a connecting portion, and a second connecting plate. In the same first connecting member, one end of the connecting portion is integrally connected to the first connecting plate, and the other end of the connecting portion is integrally connected to the second connecting plate. The first connecting plate, the connecting portion, and the second connecting plate together form a gate-shaped structure. The first connecting plate is closer to the cover body than the second connecting plate. The side of the second connecting plate away from the first connecting plate has multiple connecting pieces, and the number of connecting pieces is the same as the number of storage compartments. The position of each connecting piece corresponds one-to-one with the position of each first battery cell. Each connecting piece is fixed to the terminal post of the corresponding first battery cell by a first fixing bolt.

[0009] As an improvement of this utility model, the first connecting member and the second connecting member have the same structure.

[0010] As an improvement of this utility model, each of the connecting pieces is provided with a first threaded hole for the corresponding first fixing bolt to pass through.

[0011] As an improvement of this utility model, each of the battery boxes is provided with a temperature sensor.

[0012] As an improvement of this utility model, the cover includes a cover plate and a side plate. The cover plate is a rectangular plate, and the side plate is arranged around the cover plate. One end of the side plate is integrally connected to the periphery of the cover plate. After the cover is closed, the outer side of the side plate abuts against the inner side of the inner cavity of the battery box. A plurality of second threaded holes are evenly opened along the length of the side plate. Through holes corresponding to each of the second threaded holes are opened on the side wall of the inner cavity of the battery box. A second fixing bolt is inserted through each of the through holes, and the diameter of the nut of each second fixing bolt is larger than the diameter of each through hole. Each second fixing bolt passes through the corresponding through hole and is threadedly connected to the corresponding second threaded hole.

[0013] As an improvement of this utility model, a rotating handle is rotatably connected to the top center of the battery box.

[0014] As an improvement of this utility model, the side wall of the battery box is provided with a first heat dissipation vent and a second heat dissipation vent respectively corresponding to the positions of each of the storage compartments.

[0015] As an improvement of this utility model, the cover is a stainless steel cover.

[0016] By adopting the above technical solution, this utility model has the following beneficial effects:

[0017] This invention optimizes the connection method by arranging the first and second battery cells vertically in the battery box and connecting the first battery cells on the same straight line and the second battery cells on the same straight line with connectors. The connection process is efficient and quick, and the assembly efficiency is high. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a battery pack structure according to the present invention;

[0019] Figure 2 This is a schematic diagram of the battery module in this utility model;

[0020] Figure 3 This is a partially exploded view of the battery module in this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the first connecting member in this utility model.

[0022] The corresponding markings in the diagram are as follows:

[0023] 10 - Battery box; 20 - Battery module;

[0024] 21-Battery box; 22-Cover;

[0025] 23-Shelf; 24-Storage compartment;

[0026] 25 - First connector; 26 - Second connector;

[0027] 27-First connecting plate; 28-Connecting part;

[0028] 29-Second connecting plate; 30-Connecting piece;

[0029] 31-First fixing bolt; 32-First threaded hole;

[0030] 33-Cover plate; 34-Side plate;

[0031] 35 - Second threaded hole; 36 - Through hole;

[0032] 37-Rotating handle; 38-First heat dissipation vent;

[0033] 39 - Second heat dissipation vent. Detailed Implementation

[0034] The utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0035] like Figures 1-4As shown, this embodiment provides a battery pack structure, including a battery box 10 with an opening at the top and battery modules 20 disposed in the battery box. Multiple battery modules 20 are arranged in an array within the battery box 10. Each battery module 20 includes a battery housing 21 and a cover 22, which is made of stainless steel. Within the same battery module 20, an opening is provided on one side of the battery housing 21, and the cover 22 covers the opening. The inner cavity of the battery housing 21 is provided with multiple horizontally arranged partitions 23, each partition 23 dividing the inner cavity of the battery housing 21 into multiple storage compartments 24. Each storage compartment 24 is respectively equipped with a first battery cell (not shown in the figure) and a second battery cell (not shown in the figure), and they are located in the same storage compartment. The first and second battery cells of the compartment 24 are arranged side by side along the length of the opening of the corresponding compartment 24. The first battery cells in each compartment 24 are on the same straight line, and the second battery cells in each compartment 24 are on the same straight line. The first battery cells on the same straight line are electrically connected to each other through the first connector 25, and the second battery cells on the same straight line are electrically connected to each other through the second connector 26. By arranging the first and second battery cells vertically in the battery box 21 and connecting the first battery cells on the same straight line and the second battery cells on the same straight line through the connectors, the connection method is optimized, the connection process is efficient and fast, and the assembly efficiency is high.

[0036] Each first connector 25 includes a first connecting plate 27, a connecting portion 28, and a second connecting plate 29. In the same first connector 25, one end of the connecting portion 28 is integrally connected to the first connecting plate 27, and the other end of the connecting portion 28 is integrally connected to the second connecting plate 29. The first connecting plate 27, the connecting portion 28, and the second connecting plate 29 together form a U-shaped structure. The first connecting plate 27 is closer to the cover 22 than the second connecting plate 28. The side of the second connecting plate 29 away from the first connecting plate 27 has multiple connecting pieces 30. It should be noted that the connecting pieces 30 are formed by cutting and bending the second connecting plate 29, and the number of connecting pieces 30 is the same as the number of first battery cells. The position of each connecting piece 30 is relative to each first battery cell. The individual cells are arranged in a one-to-one correspondence. The connection between the connecting piece 30 and the terminal of the first battery cell can be conventional. Each connecting piece 30 is fixed to the terminal of the corresponding first battery cell by a first fixing bolt 31. In this embodiment, there are two first connecting pieces 25. One first connecting piece 25 electrically connects the positive terminals of each first battery cell located on the same straight line together, and the other first connecting piece 25 electrically connects the negative terminals of each first battery cell located on the same straight line together. Each connecting piece 30 is provided with a first threaded hole 32 for the corresponding first fixing bolt 31 to pass through. The connecting piece 30 and the terminal of the battery cell are fixedly connected by the first fixing bolt 31.

[0037] The first connector 25 and the second connector 26 have the same structure, that is, the first connector 25 and the second connector 26 are the same connectors, which reduces the types of connectors and further improves assembly efficiency.

[0038] Each battery box 21 is equipped with a temperature sensor (not shown in the figure), which facilitates the monitoring of the temperature of the individual battery cells.

[0039] The cover 22 includes a cover plate 33 and a side plate 34. The cover plate 33 is a rectangular plate, and the side plate 34 is arranged around the cover plate 33. One end of the side plate 34 is integrally connected to the periphery of the cover plate 33. After the cover is closed, the outer side of the side plate 34 abuts against the inner side of the inner cavity of the battery box. A plurality of second threaded holes 35 are evenly opened along the length of the side plate 34. Through holes 36 corresponding to each of the second threaded holes 35 are opened on the side wall of the inner cavity of the battery box. A second fixing bolt (not shown in the figure) is inserted into each through hole 36. The diameter of the nut of each second fixing bolt is larger than the diameter of each through hole 36. Each second fixing bolt passes through the corresponding through hole 36 and is threadedly connected to the corresponding second threaded hole 35. The cover 22 and the battery box 21 are detachably connected through the cooperation of the second fixing bolt, the through hole 36 and the second threaded hole 35, which facilitates disassembly.

[0040] A rotating handle 37 is rotatably connected to the top center of the battery box 21, which facilitates handling.

[0041] The side wall of the battery box 21 is provided with a first heat dissipation vent 38 and a second heat dissipation vent 39 corresponding to the positions of each storage compartment 24, which facilitates heat dissipation and improves the overall heat dissipation performance of the battery module.

[0042] During assembly, the first and second battery cells are placed side-by-side in the same storage compartment 24. Two battery cells are placed in other storage compartments 24, or none may be placed. The total capacity of the battery module 20 is controlled by the number of batteries accommodated in each storage compartment 24, adapting to different needs. Then, the positive terminals of each first battery cell aligned with the first connector 25 are connected, as are the negative terminals of each first battery cell aligned with the first connector 25. Similarly, the positive terminals of each second battery cell aligned with the second connector 26 are connected. A connector 25 connects the negative terminals of each first battery cell on the same straight line. The cover 22 is fixed by the cooperation of the second fixing bolt, through hole 36 and second threaded hole 35. Finally, the entire battery module 20 is transported to the battery box 10 by rotating the handle 37 to complete the assembly of the battery pack. By arranging the first and second battery cells vertically in the battery box 21 and connecting the first battery cells on the same straight line and the second battery cells on the same straight line with the connector, the connection method is optimized, the connection process is efficient and fast, and the assembly efficiency is high.

[0043] The present invention has been described in detail above with reference to the accompanying drawings. However, the embodiments of the present invention are not limited to the above embodiments. Those skilled in the art can make various modifications to the present invention based on the prior art, and these modifications all fall within the protection scope of the present invention.

Claims

1. A battery pack structure, characterized in that, The device includes a battery box with an opening at the top and battery modules disposed within the battery box. Multiple battery modules are arranged in an array within the battery box. Each battery module includes a battery compartment and a cover. Within the same battery module, one side of the battery compartment has an opening, and the cover covers the opening. The inner cavity of the battery box is provided with multiple horizontally arranged partitions, each partition dividing the inner cavity into multiple storage compartments. Each storage compartment is respectively equipped with a first battery cell and a second battery cell. The first and second battery cells located in the same storage compartment are arranged side-by-side along the length of the opening of the corresponding storage compartment. The first battery cells in each storage compartment are located on the same straight line, and the second battery cells in each storage compartment are located on the same straight line. The first battery cells on the same straight line are electrically connected to each other via a first connector, and the second battery cells on the same straight line are electrically connected to each other via a second connector.

2. The battery pack structure according to claim 1, characterized in that, Each of the first connecting members includes a first connecting plate, a connecting portion, and a second connecting plate. In the same first connecting member, one end of the connecting portion is integrally connected to the first connecting plate, and the other end of the connecting portion is integrally connected to the second connecting plate. The first connecting plate, the connecting portion, and the second connecting plate together form a gate-shaped structure. The first connecting plate is closer to the cover body than the second connecting plate. The side of the second connecting plate away from the first connecting plate has multiple connecting pieces, and the number of connecting pieces is the same as the number of storage compartments. The position of each connecting piece corresponds one-to-one with the position of each first battery cell. Each connecting piece is fixed to the terminal post of the corresponding first battery cell by a first fixing bolt.

3. The battery pack structure according to claim 2, characterized in that, The first connector and the second connector have the same structure.

4. A battery pack structure according to claim 2, characterized in that, Each of the connecting pieces has a first threaded hole through which the corresponding first fixing bolt passes.

5. A battery pack structure according to claim 1, characterized in that, Each of the battery boxes is equipped with a temperature sensor.

6. A battery pack structure according to claim 1, characterized in that, The cover includes a cover plate and side plates. The cover plate is a rectangular plate. The side plates are arranged around the cover plate, and one end of the side plates is integrally connected to the periphery of the cover plate. After the cover is closed, the outer side of the side plate abuts against the inner side of the inner cavity of the battery box. A plurality of second threaded holes are evenly opened along the length of the side plate. Through holes corresponding to each of the second threaded holes are opened on the side wall of the inner cavity of the battery box. A second fixing bolt is inserted through each of the through holes, and the diameter of the nut of each second fixing bolt is larger than the diameter of each through hole. Each second fixing bolt passes through the corresponding through hole and is threadedly connected to the corresponding second threaded hole.

7. A battery pack structure according to claim 1, characterized in that, A rotating handle is rotatably connected to the top center of the battery box.

8. A battery pack structure according to claim 1, characterized in that, The side wall of the battery box is provided with a first heat dissipation vent and a second heat dissipation vent respectively corresponding to the positions of each of the storage compartments.

9. A battery pack structure according to claim 1, characterized in that, The cover is made of stainless steel.

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