Battery pack convenient for replacing integrated circuit board

Abstract

The utility model provides a battery pack convenient for replacing an integrated circuit board, which comprises a box body consisting of a cover body and a groove body, a vertical partition plate is arranged in the box body, the space in the box body is divided into a first accommodating chamber and a second accommodating chamber by the partition plate, a battery module is fixedly arranged in the first accommodating chamber, and the battery module is fixedly arranged in the second accommodating chamber. An integrated circuit board is fixedly mounted in the second accommodating chamber; the positive input end and the negative input end of the integrated circuit board are electrically connected with the positive output end and the negative output end of the battery module through two cables respectively; the positive output end and the negative output end of the integrated circuit board are electrically connected to the two wire holders respectively, and the two wire holders are arranged on the cover body in a penetrating mode. The box body is divided into the two accommodating chambers by the partition plate, and the battery module and the integrated circuit board are respectively arranged in the two accommodating chambers and are mutually independent, so that the integrated circuit board is convenient to install, replace and maintain.

Description

Technical Field

[0001] This utility model relates to the field of battery assembly and integration technology, specifically to a battery pack that facilitates the replacement of integrated circuit boards. Background Technology

[0002] Currently, power batteries not only serve as core components of electric vehicles but also as power sources for agricultural tools and other applications. Due to improvements in the capacity and charge / discharge performance of individual battery cells, prolonged or overloaded operation generates significant heat, potentially causing the integrated circuit boards on the power battery to overheat and become damaged. Once damaged, these integrated circuit boards are difficult to replace and repair because they are firmly integrated with the battery cells. Utility Model Content

[0003] In view of the problems in the prior art, this utility model provides a battery pack that facilitates the replacement of integrated circuit boards, with the aim of making the integrated circuit boards on the power battery easier to replace and maintain.

[0004] A battery pack with an easy-to-replace integrated circuit board includes a housing consisting of a cover and a slot. A vertical partition is provided inside the housing, dividing the space inside the housing into a first accommodating chamber and a second accommodating chamber. A battery module is fixedly installed in the first accommodating chamber, and an integrated circuit board is fixedly installed in the second accommodating chamber. The positive input terminal and negative input terminal of the integrated circuit board are electrically connected to the positive output terminal and negative output terminal of the battery module, respectively, via two cables. The positive output terminal and negative output terminal of the integrated circuit board are electrically connected to two terminal blocks, both of which are disposed through the cover.

[0005] Furthermore, a gap is left between the partition and the top cover, and the cable passes through and is installed in this gap.

[0006] Furthermore, the integrated circuit board is mounted on the partition, and a maintenance port is provided on the housing at the position corresponding to the integrated circuit board, with a cover plate fixedly installed on the maintenance port.

[0007] Furthermore, one end of the cable is connected to the integrated circuit board via a quick-connect connector.

[0008] Furthermore, the partition and the tank body are made of the same material, and the partition is welded to the inner wall of the tank body.

[0009] Furthermore, the battery module includes several cells arranged side by side between two end plates and a fixing band arranged around the two end plates. The fixing band makes the cells and the two end plates form an integral assembly. The positive and negative tabs of the cells are located on their top surfaces. The positive and negative tabs are connected through a busbar and the cells are connected in series or in parallel. One end of the cable is electrically connected to the corresponding busbar.

[0010] Furthermore, a slot is provided on the end plate at the position corresponding to the connecting platform, and a connecting block is snapped into the slot. The busbar on the corresponding connecting platform extends to the connecting block and is bolted to the connecting block together with the cable.

[0011] Furthermore, the bottom surface of the end plate is higher than the bottom surface of the battery cell. A support bar is fixedly connected to the bottom surface of the second accommodating chamber at the position corresponding to the end plate. The support bar is supported on the bottom surface of the end plate. A vertical mounting hole is provided on the end plate. A screw is inserted through the mounting hole. The lower end of the screw is inserted into the support bar and threadedly engaged with a nut pre-installed inside it.

[0012] Furthermore, the bottom surface of the battery module is attached to the bottom surface of the first accommodating chamber.

[0013] Furthermore, the bottom edges of the support strip and the partition are overlapped and fixedly connected.

[0014] The beneficial effects of this utility model are: the enclosure is divided into two compartments by a partition, and the battery module and integrated circuit board are respectively placed in these two compartments, which are independent of each other, making it convenient for the installation, replacement and maintenance of the integrated circuit board. Attached Figure Description

[0015] Figure 1 This is an exploded structural diagram of the present invention;

[0016] Figure 2 This is a diagram of the internal structure of the box.

[0017] Figure 3 This is a schematic diagram of the battery module structure;

[0018] Figure 4 for Figure 3 Enlarged view of the structure of region A in the middle. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings. Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. The directional terms such as left, center, right, top, and bottom in the embodiments of the present invention are only relative concepts or referenced to the normal use state of the product, and should not be considered restrictive.

[0020] A battery pack that facilitates the replacement of integrated circuit boards, combined with Figure 1 and Figure 2As shown, the box, consisting of a cover 61 and a groove 62, has a vertical partition 63 inside, dividing the space inside the box into a first accommodating chamber 622 and a second accommodating chamber 623. The partition 63 and the groove 62 are made of the same material, and the partition 63 is welded to the inner wall of the groove 62. Both the partition 63 and the groove 62 are made of metal or rigid plastic. A battery module 100 is fixedly installed in the first accommodating chamber 622, and an integrated circuit board 7 is fixedly installed in the second accommodating chamber 622. The integrated circuit board 7 is a circuit board used to protect the normal power supply of the battery cell. The positive and negative input terminals of the integrated circuit board 7 are respectively connected to the positive terminal of the battery module 100 via two cables. The output terminal and the negative output terminal are electrically connected. A gap is left between the partition 63 and the top cover 61. This gap is used to allow the cable connecting the integrated circuit board 7 and the battery module 100 to pass through. That is, the cable passes through the gap. To facilitate the connection between the cable and the integrated circuit board 7, one end of the cable is plugged into the integrated circuit board 7 through a quick connector. The positive output terminal and the negative output terminal of the integrated circuit board 7 are electrically connected to two terminal blocks 8, which are both installed through the cover 61. To facilitate the fixing of the integrated circuit board 7, the integrated circuit board 7 is mounted on the partition 63. A maintenance port 621 is opened on the housing corresponding to the position of the integrated circuit board 7. A cover plate 64 is fixedly installed on the maintenance port 621.

[0021] Among them, such as Figure 3 and Figure 4 As shown, the battery module 100 includes several battery cells 2 arranged side by side between two end plates 3 and a fixing band 1 arranged around the two end plates 3. The two fixing bands 1 arranged vertically make the battery cells 2 and the two end plates 3 form an integral assembly. The top surface of the battery cells 2 is located in the same plane, and the bottom surface of the battery cells 2 is located in another plane. The positive and negative electrode tabs of the battery cells 2 are both located on their top surfaces. The top of the positive and negative electrode tabs are both set as connecting platforms 22. The connecting platforms 22 on adjacent battery cells 2 are set one-to-one and connected by busbars 21, so that the battery cells 2 are connected in series or in parallel. A slot 32 is opened on the end plate 3 at the position corresponding to the connecting platform 22 on the adjacent battery cells 2. A connecting block 5 is snapped into the slot 32. The busbar 21 on the corresponding connecting platform 22 extends to the connecting block 5 and is bolted to it. A wiring space is left at the bolting point of the busbar 21 and the connecting block 5. The other end of the cable is bolted to the connecting block 5 together with the corresponding busbar 21. To facilitate the fixing and replacement of the battery module 100, the bottom surface of the end plate 3 is higher than the bottom surface of the cell 2. A support strip 65 is fixedly connected to the bottom surface of the second accommodating chamber 623 at the position corresponding to the end plate 3. The support strip 65 is supported on the bottom surface of the end plate 3. A vertical mounting hole 33 is provided on the end plate 3. A screw is inserted through the mounting hole 33. The lower end of the screw is inserted into the support strip 65 and threadedly engaged with the nut pre-installed inside. The bottom edges of the support strip 65 and the partition plate 63 overlap and are fixedly connected. The bottom surface of the battery module 100 is in contact with the bottom surface of the first accommodating chamber 622.

[0022] When the battery module 100 needs to be replaced, the cover 61 is opened, and then the cable at the busbar 21 and the screw between the end plate 3 and the support bar 65 are removed, so that the old battery module 100 can be taken out from the first accommodating chamber 622, and then the new battery module 100 is placed in and installed in the first accommodating chamber 622. When the integrated circuit board 7 needs to be maintained, the cover 64 is removed, and the integrated circuit board 7 can be repaired through the maintenance port 621, which is convenient and quick.

[0023] Additionally, for ease of wiring, the slot 32 is located at the top of the end plate 3, and the corresponding busbar 21 extends above the snap-fit ​​block 5 and fits and is bolted to the top surface of the snap-fit ​​block 5. The wiring space is located directly above the snap-fit ​​block 5. The slot 32 is a horizontal through slot and forms a notch on the top surface of the end plate 3. The notch and the horizontal through slot form a snap-fit ​​structure that is larger at the bottom and smaller at the top. The lower part of the snap-fit ​​block 5 matches the slot 32, that is, the lower part of the snap-fit ​​block 5 is also a snap-fit ​​structure that is larger at the bottom and smaller at the top. The snap-fit ​​block 5 is inserted into the slot 32 from the side of the end plate 3, so that the snap-fit ​​block 5 cannot be removed from the top of the slot 32. The upper part of the snap-fit ​​block 5 is located above the notch and forms a fixing platform. The corresponding busbar 21 and The top surface of the fixing platform is attached; to make the structure more compact and to ensure that the junction of the wiring point is higher than the top surface of the battery cell 2, the top surfaces of the end plate 3 and the snap-fit ​​block 5 are both lower than the top surface of the battery cell 2. The top surface of the snap-fit ​​block 5 is flush with the top surface of the end plate 3. One end of the corresponding busbar 21 is bent downward and extends to the top surface of the snap-fit ​​block 5 and connects with it; since the battery cell 2 will expand during operation, in order to keep its expansion surface more uniform, a retaining plate 4 is provided between the end plate 3 and the battery cell 2. The retaining plate 4 matches and adheres to the side of the battery cell 2. The retaining plate 4 is used to keep the side of the battery cell 2 in the same plane. The retaining plate 4 can be a steel plate or an aluminum alloy plate, so that it is not easily deformed. In addition, in order to improve the structural strength of the end plate 3 and reduce its weight, the end plate 3 is a hollow structure and has staggered reinforcing ribs 31 distributed inside it. The end plate 3 is made of rigid plastic or aluminum alloy.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A battery pack for easy replacement of integrated circuit boards, comprising a housing consisting of a cover and a slot, characterized in that: A vertical partition is installed inside the box, dividing the space inside the box into a first compartment and a second compartment. A battery module is fixedly installed in the first compartment, and an integrated circuit board is fixedly installed in the second compartment. The positive and negative input terminals of the integrated circuit board are electrically connected to the positive and negative output terminals of the battery module via two cables, respectively. The positive and negative output terminals of the integrated circuit board are electrically connected to two terminal blocks, both of which are installed through the cover.

2. The battery pack for easy replacement of integrated circuit boards according to claim 1, characterized in that: A gap is left between the partition and the top cover, and the cables are installed through this gap.

3. The battery pack for easy replacement of integrated circuit boards according to claim 1, characterized in that: The integrated circuit board is mounted on the partition, and a maintenance port is provided on the housing at the position corresponding to the integrated circuit board. A cover plate is fixedly installed on the maintenance port.

4. The battery pack for easy replacement of integrated circuit boards according to claim 1, characterized in that: One end of the cable is plugged into the integrated circuit board via a quick-connect connector.

5. The battery pack for easy replacement of integrated circuit boards according to claim 1, characterized in that: The partition and the tank are made of the same material, and the partition is welded to the inner wall of the tank.

6. The battery pack for easy replacement of integrated circuit boards according to claim 1, characterized in that: The battery module includes several cells arranged side by side between two end plates and a fixing band arranged around the two end plates. The fixing band makes the cells and the two end plates form an integral assembly. The positive and negative tabs of the cells are located on their top surfaces. The positive and negative tabs are connected through a busbar and the cells are connected in series or in parallel. One end of the cable is electrically connected to the corresponding busbar.

7. The battery pack for easy replacement of integrated circuit boards according to claim 6, characterized in that: A slot is provided on the end plate at the position corresponding to the connecting platform. A connecting block is snapped into the slot. The busbar on the corresponding connecting platform extends to the connecting block and is bolted to the connecting block together with the cable.

8. The battery pack for easy replacement of integrated circuit boards according to claim 6, characterized in that: The bottom surface of the end plate is higher than the bottom surface of the battery cell. A support bar is fixedly connected to the bottom surface of the second accommodating chamber at the position corresponding to the end plate. The support bar is supported on the bottom surface of the end plate. A vertical mounting hole is provided on the end plate. A screw rod is inserted through the mounting hole. The lower end of the screw rod is inserted into the support bar and is threadedly engaged with the nut pre-installed inside.

9. The battery pack for easy replacement of integrated circuit boards according to claim 8, characterized in that: The bottom surface of the battery module is attached to the bottom surface of the first accommodating chamber.

10. The battery pack for easy replacement of integrated circuit boards according to claim 8, characterized in that: The bottom edges of the support strip and the partition are overlapped and fixedly connected.

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