High-strength compression-resistant shell of lithium square shell battery module
By introducing inner support plates, reinforcement blocks and buffer mechanisms into the lithium square shell battery module shell, the problem of poor pressure resistance of traditional battery module shells is solved, achieving high strength pressure resistance and easy maintenance.
Patent Information
- Application Number
- CN202411732093.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-01-24
AI Technical Summary
When facing high-strength pressure, the housing of the traditional battery module cannot effectively reduce the pressure, resulting in deformation of the housing and damage to the internal structure of the battery, affecting the battery performance and service life.
Design a lithium -square -shell battery module high -strength compressive shell, adopts the shell, anti -collision plate, top cover and other components, combined with internal support plates, enhanced blocks and enhanced columns, setting up pressure grooves and buffer mechanisms, using compression to use compressed Spring and cushioning spring absorbing impact power to enhance pressure resistance.
This design not only enhances the pressure resistance effect of the shell, but also provides the dismantling design of the top cover, which facilitates the later maintenance and maintenance, and extends the service life of the battery module.
Smart Images
Figure CN119361950A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of module shells, and in particular to a high-strength pressure-resistant shell of a lithium square shell battery module. Background Art
[0002] A battery is a device that can regenerate the internal active substances by charging after discharge, storing electrical energy as chemical energy; when it needs to be discharged, the chemical energy is converted into electrical energy again. The external battery box of the battery will be deformed or damaged by the high-intensity pressure from the outside, causing the internal battery to be squeezed and deformed, resulting in leakage of electricity and liquid; The battery module contains multiple groups of batteries. The traditional battery module shell has a single way of resisting pressure. When the battery shell is subjected to external pressure, it cannot effectively relieve the pressure, causing the module shell to be easily deformed, such as dents, which not only affects the appearance of the battery, but also can affect the internal structure layout of the battery and the battery performance, resulting in a decline in battery performance and affecting its use. Therefore, corresponding improvements are needed. Summary of the invention
[0003] The object of the present invention is to provide a high-strength pressure-resistant shell for a lithium square shell battery module to solve the problem of poor pressure resistance of the battery module shell proposed in the above background technology.
[0004] To achieve the above object, the present invention provides the following technical solutions: a high-strength pressure-resistant shell of a lithium square shell battery module, comprising an outer shell, an anti-collision plate, and a top cover, wherein a loading port is provided at the top of the outer shell, and the top cover is detachably connected to the top of the outer shell; It also includes: fixing holes are provided on both sides of the top of the outer shell, and disassembly mechanisms are provided inside the fixing holes, one side of the disassembly mechanisms is connected to the bottom end of the top cover, decompression grooves are opened on the four outer surfaces of the outer shell, and buffer mechanisms are provided on both sides of the inner part of the decompression grooves, one end of the buffer mechanism is connected to an anti-collision plate, and reinforcement components are provided on the four inner walls of the outer shell.
[0005] Preferably, the reinforcement assembly includes an inner support plate fixed inside the outer shell, and reinforcement blocks are evenly fixed on one side of the inner support plate, and reinforcement columns are connected between the reinforcement blocks.
[0006] Preferably, the inner support plate is a carbon fiber composite plate, and the reinforcement blocks and reinforcement columns are both made of stainless steel.
[0007] Preferably, the disassembly mechanism includes a plug-in block, and two plug-in blocks are provided, the plug-in blocks are fixed on both sides of the bottom end of the top cover, one end of the plug-in block extends into the fixing hole, two support blocks are connected to both sides of the fixing hole, and adjusting shafts are connected between the support blocks, and locking blocks are sleeved on the outer sides of the adjusting shafts, and the locking blocks are distributed on both sides of the plug-in block.
[0008] Preferably, a compression spring is connected to one side of the locking block, and one end of the compression spring is connected to the inner wall of the fixing hole, and one end of the adjusting shaft extends to the outside of the outer shell.
[0009] Preferably, the buffer mechanism includes a shock-absorbing block, and the cross-section of the shock-absorbing block is V-shaped. The shock-absorbing block is connected between the outer shell and the anti-collision plate. The plug-in block is internally connected to an arc-shaped supporting rubber block. Support columns are penetrated on both sides of the shock-absorbing block below the supporting rubber block, and shock-absorbing springs are connected between the support columns.
[0010] Preferably, the supporting rubber blocks and the supporting columns are both made of rubber material, and the shock absorbing blocks are arranged in two groups on the anti-collision plate, with two blocks in each group.
[0011] Compared with the prior art, the invention has the following beneficial effects: the high-strength pressure-resistant shell of the lithium square shell battery module not only has a good external pressure-resistant effect, but also has a detachable top cover, so as to facilitate the later inspection and maintenance of the battery; By fixing an inner support plate inside the outer shell, wherein the inner support plate is a carbon fiber composite plate with high strength, high rigidity, light weight, and excellent corrosion resistance and insulation, and cooperating with multiple groups of reinforcement blocks and reinforcement columns to internally support the outer shell, the reinforcement blocks and reinforcement columns are made of stainless steel, which can withstand large external forces and pressures and have good compression resistance, the outer shell can have high strength and high compression resistance; When the outer shell receives an external impact, the impact force acts on the anti-collision plate, causing the anti-collision plate to move into the decompression groove, and the shock-absorbing block is squeezed by force, and the shock-absorbing spring is deformed and compressed, thereby absorbing the generated impact force to achieve a reduction effect, and the support rubber block is deformed to further absorb the impact force, thereby reducing the impact of the external impact force on the outer shell, enhancing the compression resistance of the outer shell, making it less likely to deform when subjected to external force, and not affecting its performance; The plug-in block at the bottom of the top cover is correspondingly inserted into the fixed hole on the outer shell. The plug-in block contacts the locking block during the plug-in process, causing the locking block to flip around the adjusting shaft and compressing the compression spring. When the plug-in block is fully plugged in, the compression spring resets and pushes the locking block to be stuck on both sides of the plug-in block, so that the plug-in block can be firmly stuck in the fixing hole, so that the feeding port on the outer shell can be blocked with the top cover, and the operation is convenient. Later, the adjusting shaft extending to the outside of the outer shell can be freely flipped to separate the locking block from the plug-in block, and the plug-in block can be freely pulled out, so that the battery in the outer shell can be inspected and maintained later. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the main cross-sectional structure of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the inner support plate of the present invention; Figure 4 For the present invention Figure 2 Schematic diagram of the structure at A in the middle; Figure 5 It is a schematic diagram of the three-dimensional structure of the buffer mechanism of the present invention.
[0014] Explanation of the reference numerals in the figure: 1. outer shell; 101. pressure relief groove; 102. fixing hole; 2. anti-collision plate; 3. top cover; 4. inner support plate; 401. reinforcement block; 402. reinforcement column; 5. buffer mechanism; 501. shock-absorbing block; 502. supporting rubber block; 503. supporting column; 504. shock-absorbing spring; 6. disassembly mechanism; 601. plug-in block; 602. locking block; 603. support block; 604. compression spring; 605. adjusting shaft. DETAILED DESCRIPTION
[0015] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0016] See also Figure 1-Figure 5 , the present invention provides the following technical solutions: Example
[0017] In order to solve the problem that the top plate of the existing battery module housing is inconvenient to disassemble, the following technical solution is published. For details, please refer to Figure 1 , Figure 2 , Figure 4A high-strength pressure-resistant shell of a lithium square shell battery module includes an outer shell 1, an anti-collision plate 2, and a top cover 3. The top of the outer shell 1 is provided with a drop-in port, and the top of the outer shell 1 is detachably connected to the top cover 3; it also includes: fixing holes 102 are provided on both sides of the top of the outer shell 1, and a disassembly mechanism 6 is provided inside the fixing holes 102, one side of the disassembly mechanism 6 is connected to the bottom of the top cover 3, and the disassembly mechanism 6 includes a plug-in block 601, and the plug-in block 601 is provided with two, and the plug-in block 601 is fixed to both sides of the bottom of the top cover 3, and the plug-in block 601 is fixed to the bottom of the top cover 3. One end of the connecting block 601 extends to the inside of the fixing hole 102, two supporting blocks 603 are connected to both sides of the fixing hole 102, and an adjusting shaft 605 is connected between the supporting blocks 603, and a locking block 602 is sleeved on the outside of the adjusting shaft 605, and the locking blocks 602 are distributed on both sides of the plug-in block 601, and one side of the locking block 602 is connected to a compression spring 604, and one end of the compression spring 604 is connected to the inner wall of the fixing hole 102, and one end of the adjusting shaft 605 extends to the outside of the outer shell 1; When the present embodiment is in use, the plug-in block 601 at the bottom of the top cover 3 is correspondingly inserted into the fixing hole 102 on the outer shell 1. During the plug-in process, the plug-in block 601 contacts the locking block 602, causing the locking block 602 to flip around the adjusting shaft 605 and causing the compression spring 604 to be compressed. When the plug-in block 601 is fully plugged in, the compression spring 604 resets and pushes the locking block 602 to be stuck on both sides of the plug-in block 601, so that the plug-in block 601 can be firmly stuck in the fixing hole 102, so that the top cover 3 can be used to block the feeding port on the outer shell 1, and the operation is convenient. Later, the adjusting shaft 605 extending to the outside of the outer shell 1 can be freely flipped to separate the locking block 602 from the plug-in block 601, and the plug-in block 601 can be freely pulled out, so that the battery in the outer shell 1 can be inspected and maintained later. Example
[0018] This embodiment is different from the first embodiment. By using the buffer mechanism 5, the pressure protection of the outer shell 1 can be achieved. Therefore, the following technical solution is published. For details, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 5, pressure relief grooves 101 are provided on the four outer surfaces of the outer shell 1, and buffer mechanisms 5 are provided on both sides of the inner part of the pressure relief grooves 101, and one end of the buffer mechanism 5 is connected to the anti-collision plate 2, and the buffer mechanism 5 includes a shock-absorbing block 501, and the cross-section of the shock-absorbing block 501 is V-shaped, and the shock-absorbing block 501 is connected between the outer shell 1 and the anti-collision plate 2, and the plug-in block 601 is connected to an arc-shaped supporting rubber block 502, and the inner part of the shock-absorbing block 501 below the supporting rubber block 502 is penetrated by supporting columns 503 on both sides, and the supporting columns 503 are connected to each other. A damping spring 504 is connected, and the supporting rubber block 502 and the supporting column 503 are all made of rubber. Two groups of shock-absorbing blocks 501 are arranged on the anti-collision plate 2, and each group is provided with two. Reinforcement components are arranged on the four inner walls of the outer shell 1, and the reinforcement components include an inner support plate 4 fixed inside the outer shell 1, and reinforcement blocks 401 are evenly fixed on one side of the inner support plate 4. Reinforcement columns 402 are connected between the reinforcement blocks 401. The inner support plate 4 is a carbon fiber composite plate, and the reinforcement blocks 401 and the reinforcement columns 402 are all made of stainless steel. When this embodiment is in use, an inner support plate 4 is fixed inside the outer shell 1, and multiple groups of reinforcing blocks 401 are fixed between the inner support plate 4 and the outer shell 1. Reinforcing columns 402 are connected horizontally between the reinforcing blocks 401. The inner support plate 4 is a carbon fiber composite plate with high strength, high rigidity and light weight. The outer shell 1 is supported internally by multiple groups of reinforcing blocks 401 and reinforcing columns 402. The reinforcing blocks 401 and reinforcing columns 402 are made of stainless steel, which can withstand large external forces and pressures and have good compressive resistance, so that the outer shell 1 has high strength and high compressive resistance. When the outer shell 1 receives an external impact, The impact force acts on the anti-collision plate 2, causing the anti-collision plate 2 to move into the decompression groove 101, and the shock-absorbing block 501 is squeezed by force, and the shock-absorbing spring 504 is deformed and compressed, thereby absorbing the generated impact force to achieve a reduction effect. The supporting rubber block 502 and the supporting column 503 are both made of rubber. During the squeezing of the shock-absorbing block 501, the supporting rubber block 502 is deformed, and the supporting columns 503 conflict with each other, which can further absorb and weaken the impact force, thereby reducing the influence of the external impact force on the outer shell 1, enhancing the compressive performance of the outer shell 1, and strengthening the protection of the outer shell 1.
Claims
1. A high-strength pressure-resistant shell for a lithium square battery module, comprising an outer shell, an anti-collision plate, and a top cover, wherein a loading port is provided at the top of the outer shell, and the top cover is detachably connected to the top of the outer shell, characterized in that: Also includes: Fixing holes are provided on both sides of the top of the outer shell, and disassembly mechanisms are provided inside the fixing holes, one side of the disassembly mechanisms is connected to the bottom end of the top cover, decompression grooves are provided on the four outer surfaces of the outer shell, and buffer mechanisms are provided on both sides of the decompression grooves, one end of the buffer mechanism is connected to an anti-collision plate, and reinforcement components are provided on the four inner walls of the outer shell.
2. A high-strength pressure-resistant shell for lithium square-shell battery modules according to claim 1, characterized in that: The reinforcement assembly includes an inner support plate fixed inside the outer shell, and reinforcement blocks are evenly fixed on one side of the inner support plate, and reinforcement columns are connected between the reinforcement blocks.
3. A high-strength pressure-resistant shell for lithium square-shell battery modules according to claim 2, characterized in that: The inner support plate is a carbon fiber composite plate, and the reinforcement blocks and reinforcement columns are both made of stainless steel.
4. The high-strength pressure-resistant shell of a lithium square shell battery module according to claim 1, characterized in that: The disassembly mechanism includes a plug-in block, and two plug-in blocks are provided. The plug-in blocks are fixed on both sides of the bottom end of the top cover, one end of the plug-in block extends into the interior of the fixing hole, two support blocks are connected to both sides of the interior of the fixing hole, and an adjusting shaft is connected between the support blocks, and locking blocks are sleeved on the outer sides of the adjusting shaft, and the locking blocks are distributed on both sides of the plug-in block.
5. A high-strength pressure-resistant shell for lithium square-shell battery modules according to claim 4, characterized in that: A compression spring is connected to one side of the locking block, and one end of the compression spring is connected to the inner wall of the fixing hole, and one end of the adjusting shaft extends to the outside of the outer shell.
6. The high-strength pressure-resistant shell of a lithium square shell battery module according to claim 1, characterized in that: The buffer mechanism includes a shock-absorbing block, and the cross-section of the shock-absorbing block is V-shaped. The shock-absorbing block is connected between the outer shell and the anti-collision plate. The plug-in block is internally connected with an arc-shaped supporting rubber block. Support columns penetrate both sides of the shock-absorbing block below the supporting rubber block, and shock-absorbing springs are connected between the support columns.
7. A high-strength pressure-resistant shell for lithium square-shell battery modules according to claim 6, characterized in that: The supporting rubber blocks and the supporting columns are both made of rubber. Two groups of shock-absorbing blocks are arranged on the anti-collision plate, and each group is provided with two shock-absorbing blocks.