Tricycle battery structure

Abstract

The utility model relates to the technical field of electric vehicle battery processing, and discloses a tricycle battery structure which comprises a battery cell, an aluminum row body is arranged on the outer wall of the battery cell, a PP plate is fixedly connected to the upper surface of the battery cell, the upper surface of the PP plate is fixedly connected to the lower surface of the aluminum row body, an EVA plate is arranged on the upper surface of the battery cell, and the EVA plate is fixedly connected to the lower surface of the aluminum row body. The waterproof assembly comprises an aluminum bar body and a battery cell, the waterproof assembly comprises an EVA plate, the EVA plate is L-shaped, a bridging copper bar is arranged on the upper surface of the battery cell, the outer wall of the bridging copper bar is fixedly connected to the outer wall of the aluminum bar body, a fixing assembly is arranged on the outer wall of the battery cell, and the fixing assembly is used for fixing the position of the battery cell in the waterproof assembly. According to the battery disclosed by the utility model, the two single modules are fixed into a group and are fixed with the box body by using the bolts, so that the box body and the modules can be integrated, and the effect of improving the structural strength of the battery can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle battery processing technology, and in particular to the structure of tricycle batteries. Background Technology

[0002] With the rapid development of the new energy industry, lithium batteries are gradually replacing lead-acid batteries in the two- and three-wheeled vehicle industry. The industry mainstream uses epoxy board and fiber tape for bonding and fixing, but the strength cannot meet the requirements of long-term vibration. The cells are connected in series using nickel strip welding, which results in low overcurrent and excessive temperature rise, and the waterproof rating of the casing is low. This design improves the overcurrent capacity, reduces the excessive temperature rise compared to the original design, improves the PACK structural strength, and enhances the battery's waterproof rating.

[0003] In existing technologies, traditional battery structures have low strength and cannot meet the requirements of long-term vibration testing. In addition, the waterproof rating of batteries is low, and existing batteries use nickel sheet welding in series, which cannot guarantee overcurrent protection, resulting in excessive temperature rise and short cell life. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a battery structure for tricycles, aiming to improve the problems of traditional battery structures having low strength, failing to meet the requirements of long-term vibration testing, having low waterproof rating, and using nickel sheet welding for existing battery series connection, which cannot guarantee overcurrent, has excessive temperature rise, and has short cell life.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] The battery structure for a three-wheeled vehicle includes a battery cell. An aluminum busbar body is mounted on the outer wall of the battery cell. A PP plate is fixedly connected to the upper surface of the battery cell. The upper surface of the PP plate is fixedly connected to the lower surface of the aluminum busbar body. An L-shaped EVA plate is mounted on the upper surface of the battery cell. A bridging copper busbar is mounted on the upper surface of the battery cell. The outer wall of the bridging copper busbar is fixedly connected to the outer wall of the aluminum busbar body. A fixing component is provided on the outer wall of the battery cell for fixing the battery module.

[0007] Preferably, the fixing component includes an epoxy board, the outer wall of which is disposed on the outer wall of the battery cell and the inner wall of the pressure plate.

[0008] Preferably, the inner top wall of the pressure plate is disposed on the upper surface of the PP board, the lower surface of the pressure plate is disposed on the outer wall of the EVA board, and the upper surface of the pressure plate is provided with a BMS chip.

[0009] Preferably, the inner wall of the epoxy board is provided with an outgoing aluminum busbar, the inner wall of the outgoing aluminum busbar is provided on the upper surface of the PP board, the upper surface of the outgoing aluminum busbar is provided with a rubber pad, and the outer wall of the epoxy board is provided with a waterproof component for waterproofing.

[0010] Preferably, the waterproof component includes a housing, the inner wall of which is fixedly connected to the outer wall of the epoxy board.

[0011] Preferably, the upper surface of the box is provided with a sealing ring, the outer wall of the sealing ring is provided with a box cover, and the outer wall of the box is provided on the inner wall of the box cover.

[0012] This utility model has the following beneficial effects:

[0013] 1. In this utility model, the battery is assembled by fixing two individual modules together and then fixing them to the housing with bolts, thereby achieving the integration of the housing and the modules, which improves the structural strength of the battery.

[0014] 2. In this utility model, the battery uses bolts to compress the sealing ring between the cover and the body, thereby improving the waterproof rating of the battery pack and achieving the IP65 standard.

[0015] 3. In this utility model, aluminum busbars and copper busbars are used for the series connection of battery cells and modules, which improves the current carrying capacity and reduces the temperature rise. At the same time, the modules are fixed on the box, and the heat generated by the battery is transferred to the box. The temperature is reduced by air cooling, thereby improving the battery life and ensuring the battery safety. Attached Figure Description

[0016] Figure 1 This is a perspective view of the tricycle battery structure proposed in this utility model;

[0017] Figure 2 This is a partial structural diagram of the battery cell in the tricycle battery structure proposed in this utility model;

[0018] Figure 3 This is a partial structural diagram of the pressure plate of the tricycle battery structure proposed in this utility model;

[0019] Figure 4 This is a cross-sectional schematic diagram of the internal structure of the battery box cover of the tricycle proposed in this utility model.

[0020] Legend:

[0021] 1. Battery cell; 11. Aluminum busbar body; 12. PP board; 13. EVA board; 14. Copper busbar for bridging; 2. Fixing components; 21. Epoxy board; 22. Pressure plate; 23. BMS chip; 24. Outgoing aluminum busbar; 25. Rubber pad; 3. Waterproof components; 31. Enclosure; 32. Sealing ring; 33. Enclosure cover. Detailed Implementation

[0022] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] Reference Figures 1-3 The present invention provides an embodiment of a tricycle battery structure, including a battery cell 1, an aluminum busbar body 11 on the outer wall of the battery cell 1, a PP plate 12 fixedly connected to the upper surface of the battery cell 1, the upper surface of the PP plate 12 fixedly connected to the lower surface of the aluminum busbar body 11, an EVA plate 13 on the upper surface of the battery cell 1, the EVA plate 13 being L-shaped, a bridging copper busbar 14 on the upper surface of the battery cell 1, the outer wall of the bridging copper busbar 14 being fixedly connected to the outer wall of the aluminum busbar body 11, and a fixing component 2 on the outer wall of the battery cell 1 for fixing the battery module.

[0024] Specifically, by connecting and fixing individual batteries into groups, and by using bolts to connect the battery modules to the housing 31, the housing 31 and the battery modules can be combined into one unit, thereby strengthening the structural strength of the battery. By connecting the battery cells 1 in series, and using aluminum busbar body 11 and crossover copper busbar 14 to connect the modules in series, the heat generated by the battery can be transferred to the housing 31, achieving a preliminary heat dissipation effect. PP board 12 and EVA board 13 are set to support other components.

[0025] Reference Figure 4 The fixing component 2 includes an epoxy board 21, the outer wall of which is disposed on the outer wall of the battery cell 1, and the outer wall of which is disposed on the inner wall of the pressure plate 22; the inner top wall of the pressure plate 22 is disposed on the upper surface of the PP board 12, the lower surface of the pressure plate 22 is disposed on the outer wall of the EVA board 13, and the upper surface of the pressure plate 22 is disposed on the BMS chip 23; the inner wall of the epoxy board 21 is disposed on the outgoing aluminum busbar 24, the inner wall of the outgoing aluminum busbar 24 is disposed on the upper surface of the PP board 12, the upper surface of the outgoing aluminum busbar 24 is disposed on the rubber pad 25, and the outer wall of the epoxy board 21 is provided with a waterproof component 3 for waterproofing;

[0026] Specifically, by setting up epoxy board 21 and pressure plate 22, the battery module can be placed stably in the housing 31. Setting up BMS chip 23 can control the use of the battery. Setting up rubber pad 25 on the outgoing aluminum busbar 24 can prevent the battery from being damaged due to excessive tightening of bolts.

[0027] Reference Figure 1and Figure 3 The waterproof component 3 includes a housing 31, the inner wall of which is fixedly connected to the outer wall of the epoxy board 21; a sealing ring 32 is provided on the upper surface of the housing 31, a cover 33 is provided on the outer wall of the sealing ring 32, and the outer wall of the housing 31 is provided on the inner wall of the cover 33.

[0028] Specifically, a housing 31 is installed on the outer wall of the battery module. By covering the sealing ring 32 and the housing 31 with a cover 33, and then connecting them with bolts, the sealing ring 32 is compressed, thereby improving the waterproof rating of the battery pack to the IP65 standard.

[0029] Working Principle: When this device is needed, individual battery modules are fixed together, and the cells 1 of each individual battery are connected in series. The assembled battery modules, along with the required aluminum busbar body 11, PP board 12, EVA board 13, and bridging copper busbar 14, are then connected to the housing 31 using bolts and other components. This improves the structural strength of the battery. Simultaneously, connecting the cells 1 of each individual battery in series, using the aluminum busbar body 11 and bridging copper busbar 14, increases current carrying capacity and reduces temperature rise. Furthermore, the battery modules are fixed to the inner wall of the housing 31 using epoxy board 21 and pressure plate 22, transferring heat generated by the battery to the housing 31. Air cooling reduces the temperature, extending battery life and ensuring battery safety. As a result, the BMS chip 23 can control the battery's usage status, and the rubber pad 25 on the aluminum busbar 24 can prevent the battery from being damaged by excessive tightening of the bolts. A sealing ring 32 is set on the upper surface of the housing 31, and then the housing cover 33 is placed on the upper surface of the housing 31 and the sealing ring 32. By using bolts to compress the sealing ring 32 between the housing cover 33 and the housing 31, the waterproof rating of the battery pack is improved, thereby achieving the IP65 standard. This structure not only solves the problem that the traditional battery structure has low strength and cannot meet the requirements of long-term vibration testing, but also solves the problems of low waterproof rating of the battery and the existing battery series connection using nickel sheet welding method, which cannot guarantee overcurrent, excessive temperature rise, and short cell life.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A battery structure for a three-wheeled vehicle, comprising a battery cell (1), characterized in that: The outer wall of the battery cell (1) is provided with an aluminum busbar body (11), the upper surface of the battery cell (1) is fixedly connected with a PP plate (12), the upper surface of the PP plate (12) is fixedly connected to the lower surface of the aluminum busbar body (11), the upper surface of the battery cell (1) is provided with an EVA plate (13), the EVA plate (13) is L-shaped, the upper surface of the battery cell (1) is provided with a crossover copper busbar (14), the outer wall of the crossover copper busbar (14) is fixedly connected to the outer wall of the aluminum busbar body (11), the outer wall of the battery cell (1) is provided with a fixing component (2), the fixing component (2) is used to fix the battery module.

2. The tricycle battery structure according to claim 1, characterized in that: The fixing component (2) includes an epoxy board (21), the outer wall of which is disposed on the outer wall of the battery cell (1) and the outer wall of which is disposed on the inner wall of the pressure plate (22).

3. The tricycle battery structure according to claim 2, characterized in that: The inner top wall of the pressure plate (22) is disposed on the upper surface of the PP plate (12), the lower surface of the pressure plate (22) is disposed on the outer wall of the EVA plate (13), and the upper surface of the pressure plate (22) is provided with a BMS chip (23).

4. The tricycle battery structure according to claim 3, characterized in that: The inner wall of the epoxy board (21) is provided with an outgoing aluminum busbar (24), the inner wall of the outgoing aluminum busbar (24) is provided on the upper surface of the PP board (12), the upper surface of the outgoing aluminum busbar (24) is provided with a rubber pad (25), and the outer wall of the epoxy board (21) is provided with a waterproof component (3), which is used for waterproofing.

5. The tricycle battery structure according to claim 4, characterized in that: The waterproof component (3) includes a housing (31), the inner wall of which is fixedly connected to the outer wall of the epoxy board (21).

6. The tricycle battery structure according to claim 5, characterized in that: The upper surface of the box (31) is provided with a sealing ring (32), and the outer wall of the sealing ring (32) is provided with a box cover (33), and the outer wall of the box (31) is provided on the inner wall of the box cover (33).

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