Square aluminum shell battery cell clamping structure for lithium battery pack of electric motorcycle

Abstract

The utility model discloses an electric motorcycle lithium battery pack square aluminum shell cell clamping structure, and the structure comprises a shell and w-shaped threaded holes, the outer wall of one side of the shell is symmetrically provided with a plurality of groups of w-shaped threaded holes, the w-shaped threaded holes are fixedly connected with the shell, the outer wall of the other side of the shell is symmetrically provided with a plurality of groups of concave threaded holes, and the w-shaped threaded holes are fixedly connected with the shell. A plurality of groups of pulley holes are symmetrically formed in the side wall, on one side of the w-shaped threaded hole, of the shell, the pulley holes can be used for mounting pulleys, rails are symmetrically arranged on the inner wall of the shell and fixedly connected with the shell, and an isolation plate is slidably mounted between the two groups of rails; the size of the isolation plate is as follows: the thickness is 3 mm, the length is 331 mm, and the height is 247 mm. According to the utility model, the battery cell can be conveniently and elastically clamped in two directions, the heat generated by the battery cell can be conveniently and quickly conducted and discharged, the stability of the battery in use is improved, and the service life of the battery is prolonged.

Description

A square aluminum shell battery cell clamping structure for electric motorcycle lithium battery packs Technical Field

[0001] This utility model relates to the field of clamping structure technology, specifically a clamping structure for square aluminum shell battery cells of electric motorcycle lithium battery packs. Background Technology

[0002] With the continuous expansion of the market for new energy vehicles and portable electronic devices, the demand for lithium-ion batteries is increasing, especially in the field of off-road motorcycles, where the special usage environment and performance requirements pose higher challenges to the performance and stability of batteries.

[0003] If a battery is overcharged slightly multiple times over a long period of time, the gas inside the battery will gradually accumulate, causing the cell to expand. When the battery is over-discharged and stored for a long time, the copper in the anode current collector will decompose due to the electrolytic reaction inside the battery, and gas will be generated inside the battery, causing the cell to bulge.

[0004] When a battery bulges, it causes changes in key performance parameters such as capacity, voltage, and internal resistance, resulting in a significant decrease in the overall performance of the battery. This is especially true for high-energy-density batteries such as lithium-ion batteries. Once bulging occurs, the electrolyte and electrode materials inside may react violently, generating a large amount of heat and gas, which could lead to battery fire or explosion. To improve the overall safety of the battery, a square aluminum shell cell clamping structure for electric motorcycle lithium battery packs is proposed.

[0005] As disclosed in the patent announcement number CN221596632U, a battery pack casing includes a housing and a cover; the housing has an inner cavity for accommodating the battery pack, and the cover can be fastened to the housing; the upper end of the housing protrudes inward to form a flange, and the cover and the flange are provided with a through hole, and the lower end of the flange is fixed with a rivet nut opposite the through hole; the cover and the flange are connected by fastening screws and rivet nuts.

[0006] Although it achieves the advantages of easy stacking, simple structure, and low cost of the battery pack casing, it can meet the installation and use requirements of various battery packs, has a wide range of applications, and high stability;

[0007] However, the existing clamping structure does not solve the problem that it is not convenient to clamp the battery cells in both directions during use, nor is it conducive to the rapid conduction and dissipation of heat generated by the battery cells, which affects the stability of the battery during use and the extension of its service life. Summary of the Invention

[0008] The purpose of this utility model is to provide a square aluminum shell battery cell clamping structure for electric motorcycle lithium battery packs, so as to solve the problem that the clamping structure proposed in the background art is not convenient for bidirectional elastic clamping of the battery cell, which is not conducive to the rapid heat conduction and dissipation of the heat generated by the battery cell, thus affecting the stability of the battery during use and extending its service life.

[0009] To achieve the above objectives, this utility model provides the following technical solution: a square aluminum shell battery cell clamping structure for an electric motorcycle lithium battery pack, comprising a shell and W-shaped threaded holes. Multiple sets of W-shaped threaded holes are symmetrically arranged on one outer wall of the shell, and these W-shaped threaded holes are fixedly connected to the shell. Multiple sets of concave threaded holes are symmetrically arranged on the other outer wall of the shell, and these concave threaded holes are fixedly connected to the shell. Multiple sets of pulley openings are symmetrically installed on the side wall of the shell on one side of the W-shaped threaded holes, and these pulley openings can be used to install pulleys. Tracks are symmetrically arranged on the inner wall of the shell, and these tracks are fixedly connected to the shell. An isolation plate is slidably installed between two sets of tracks. The dimensions of the isolation plate are as follows: thickness 3mm, length 331mm, and height 247mm.

[0010] Preferably, two sets of internal protruding threaded holes are symmetrically installed on the inner wall of the housing, and the internal protruding threaded holes are fixedly connected to the housing.

[0011] Preferably, the four corners of the shell are arc-shaped protrusions with an arc diameter of 3mm.

[0012] Preferably, the shell is made of high-purity aluminum and has an overall square structure.

[0013] Preferably, multiple sets of springs with equal spacing are provided on the side walls on both sides of the isolation plate, and the springs are fixedly connected to the isolation plate.

[0014] Preferably, clamping plates are symmetrically arranged on the outside of the isolation plate, and the clamping plates are connected to springs.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the clamping structure not only realizes convenient bidirectional elastic clamping of the battery cell, which facilitates the rapid heat conduction and dissipation of the heat generated by the battery cell, but also improves the stability of the battery during use and extends its service life.

[0016] (1) Insert the isolation plate into the track to divide the inside of the shell into two cavities. Then place the battery cells in the cavities one by one. During the movement of the battery cells, the battery cells squeeze the clamping plate, and the clamping plate drives the spring to contract. When the battery cells move to the bottom of the shell, under the elastic action of the spring, the spring drives the clamping plate to move, and the clamping plate drives the battery cells to move. With the cooperation of the internal protruding threaded hole, the clamping plate and the internal protruding threaded hole clamp the battery cells. During the charging and discharging process, the battery cells may bulge. With the cooperation of the internal protruding threaded hole, the battery cells can be further clamped. The shell is made of aluminum material. The density of aluminum material is relatively low, making the shell lighter. Aluminum alloy material has good corrosion resistance and fracture toughness, which helps to improve the overall safety of the battery. Aluminum material has a high thermal conductivity, which can effectively dissipate the heat inside the battery, thereby improving the stability of the battery and extending the service life of the battery. It realizes convenient bidirectional elastic clamping of the battery cells, which facilitates the rapid heat conduction and discharge of the heat generated by the battery cells, improves the stability of the battery during use and extends the service life.

[0017] (2) When it is necessary to move or adjust the position of large batteries, especially in situations where frequent battery replacement or maintenance is required, pulleys can be installed on the pulley openings to adjust the position of the batteries through the pulley system, thereby saving physical strength and improving work efficiency. At the same time, handles can be installed on the W-shaped threaded holes to carry the batteries. The W-shaped threaded holes can also improve the battery's anti-collision capability. The arc-shaped protruding structure design is not only conducive to the clamping of the battery cells, but also more resistant to mechanical fatigue and wear during long-term use compared to the right-angle design, thereby extending the battery's service life. The concave threaded holes can clamp the internal battery cells, thereby improving safety performance. The concave threaded hole design helps to disperse stress and avoid shell deformation or damage caused by local stress concentration. Attached Figure Description

[0018] Figure 1 is a three-dimensional structural diagram of this utility model;

[0019] Figure 2 is a three-dimensional structural diagram of the shell of this utility model;

[0020] Figure 3 is a top view sectional structural diagram of this utility model;

[0021] Figure 4 is a three-dimensional perspective view of the clamping plate of this utility model.

[0022] In the diagram: 1. Housing; 2. Concave threaded hole; 3. Internal protruding threaded hole; 4. Arc-shaped protruding structure; 5. Isolation plate; 6. W-shaped threaded hole; 7. Pulley opening; 8. Track; 9. Clamping plate; 10. Spring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] Please refer to Figures 1-4. One embodiment of this utility model is provided: a square aluminum shell battery cell clamping structure for an electric motorcycle lithium battery pack, including a shell 1 and W-shaped threaded holes 6. Multiple sets of W-shaped threaded holes 6 are symmetrically arranged on one side of the outer wall of the shell 1, and the W-shaped threaded holes 6 are fixedly connected to the shell 1. Multiple sets of concave threaded holes 2 are symmetrically arranged on the other side of the outer wall of the shell 1, and the concave threaded holes 2 are fixedly connected to the shell 1. Multiple sets of pulley openings 7 are symmetrically installed on the side wall of the shell 1 on one side of the W-shaped threaded holes 6, and the pulley openings 7 can be used to install pulleys. Tracks 8 are symmetrically arranged on the inner wall of the shell 1, and the tracks 8 are fixedly connected to the shell 1. An isolation plate 5 is slidably installed between the two sets of tracks 8. The dimensions of the isolation plate 5 are as follows: thickness is 3mm, length is 331mm, and height is 247mm.

[0025] Two sets of internal protruding threaded holes 3 are symmetrically installed on the inner wall of the housing 1, and the internal protruding threaded holes 3 are fixedly connected to the housing 1.

[0026] The four corners of the shell 1 are arc-shaped protruding structures 4 with an arc diameter of 3mm. The shell 1 is made of high-purity aluminum material and has an overall square structure. Multiple sets of springs 10 with equal spacing are provided on the side walls of both sides of the isolation plate 5, and the springs 10 are fixedly connected to the isolation plate 5.

[0027] The outer side of the isolation plate 5 is symmetrically provided with clamping plates 9, and the clamping plates 9 are connected to the springs 10;

[0028] First, the separator 5 is inserted into the track 8 to divide the interior of the housing 1 into two cavities. Then, the battery cells are placed sequentially into the cavities. During movement, the battery cells press against the clamping plate 9, which in turn causes the spring 10 to contract. When the battery cells reach the bottom of the housing 1, the spring 10, acting elastically, moves the clamping plate 9, which in turn moves the battery cells. With the cooperation of the internal protruding threaded hole 3, the clamping plate 9 and the internal protruding threaded hole 3 clamp the battery cells. Furthermore, if the battery cells bulge during charging or discharging, the internal protruding threaded hole 3 can further clamp the cells. The housing 1 is made of aluminum, which has a relatively low density, making the housing 1 lighter. Aluminum alloys have good corrosion resistance and fracture toughness, contributing to improved overall battery safety. Aluminum also has a high thermal conductivity, effectively dissipating heat from inside the battery, thus improving battery stability and extending battery life. The battery's lifespan is extended by a convenient bidirectional elastic clamping mechanism for the battery cells, facilitating rapid heat dissipation and improving battery stability. When moving or adjusting the position of large batteries, especially in situations requiring frequent battery replacements or maintenance, pulleys can be installed on the pulley opening 7 to adjust the battery's position, saving effort and improving efficiency. A handle can be installed on the W-shaped threaded hole 6 for easy battery handling. The W-shaped threaded hole 6 also enhances the battery's impact resistance. The arc-shaped protruding structure 4 not only facilitates cell clamping but, compared to a right-angle design, is more resistant to mechanical fatigue and wear during long-term use, thus extending battery life. The concave threaded hole 2 clamps the internal cells, improving safety. The concave threaded hole 2 also helps disperse stress, preventing deformation or damage to the casing 1 due to localized stress concentration.

[0029] Working principle: First, the separator 5 is inserted into the track 8 to divide the interior of the housing 1 into two cavities. Then, the battery cells are placed in the cavities one by one. During the movement of the battery cells, the battery cells press against the clamping plate 9, which in turn causes the spring 10 to contract. When the battery cells move to the bottom of the housing 1, the spring 10, under its elasticity, moves the clamping plate 9, which in turn moves the battery cells. With the cooperation of the internal protruding threaded hole 3, the clamping plate 9 and the internal protruding threaded hole 3 clamp the battery cells. Furthermore, if the battery cells bulge during charging and discharging, the internal protruding threaded hole 3 can further clamp the battery cells. The housing 1 is made of aluminum, which has a relatively low density, making the housing 1 lighter. Aluminum also has a high thermal conductivity, effectively dissipating heat from the battery interior. To improve battery stability and extend battery life, when it is necessary to move or adjust the position of large batteries, especially in situations requiring frequent battery replacement or maintenance, pulleys can be installed on the pulley opening 7. The position of the battery can be adjusted through the pulley system, saving physical effort and improving work efficiency. At the same time, a handle can be installed on the W-shaped threaded hole 6 for carrying the battery. The W-shaped threaded hole 6 can also improve the battery's impact resistance. The design of the arc-shaped protruding structure 4 not only facilitates the clamping of the battery cells, but also, compared to the right-angle design, the arc structure is more resistant to mechanical fatigue and wear during long-term use, thereby extending the battery's life. The concave threaded hole 2 can clamp the internal battery cells, thereby improving safety performance. The design of the concave threaded hole 2 helps to disperse stress and avoid deformation or damage to the casing 1 caused by local stress concentration.

Claims

1. A square aluminum shell battery cell clamping structure for an electric motorcycle lithium battery pack, comprising a shell (1) and a W-shaped threaded hole (6), characterized in that: Multiple sets of W-shaped threaded holes (6) are symmetrically arranged on one side of the outer wall of the housing (1), and the W-shaped threaded holes (6) are fixedly connected to the housing (1). Multiple sets of concave threaded holes (2) are symmetrically arranged on the other side of the outer wall of the housing (1), and the concave threaded holes (2) are fixedly connected to the housing (1). Multiple sets of pulley openings (7) are symmetrically installed on the side wall of the housing (1) on one side of the W-shaped threaded hole (6), and the pulley openings (7) can be used to install pulleys. Tracks (8) are symmetrically arranged on the inner wall of the housing (1), and the tracks (8) are fixedly connected to the housing (1). An isolation plate (5) is slidably installed between the two sets of tracks (8). The dimensions of the isolation plate (5) are as follows: thickness is 3mm, length is 331mm, and height is 247mm.

2. The square aluminum shell cell clamping structure for an electric motorcycle lithium battery pack according to claim 1, characterized in that: Two sets of internal protruding threaded holes (3) are symmetrically installed on the inner wall of the housing (1), and the internal protruding threaded holes (3) are fixedly connected to the housing (1).

3. The square aluminum shell cell clamping structure for an electric motorcycle lithium battery pack according to claim 1, characterized in that: The four corners of the shell (1) are arc-shaped protruding structures (4), with an arc diameter of 3mm.

4. The square aluminum shell cell clamping structure for an electric motorcycle lithium battery pack according to claim 1, characterized in that: The shell (1) is made of high-purity aluminum material and has a square structure.

5. The square aluminum shell cell clamping structure for an electric motorcycle lithium battery pack according to claim 1, characterized in that: Multiple sets of springs (10) with equal spacing are provided on the side walls on both sides of the isolation plate (5), and the springs (10) are fixedly connected to the isolation plate (5).

6. The square aluminum shell cell clamping structure for an electric motorcycle lithium battery pack according to claim 1, characterized in that: The isolation plate (5) is symmetrically provided with clamping plates (9) on its outside, and the clamping plates (9) are connected to the spring (10).

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