Battery module buffer mechanism and battery pack

Abstract

The utility model provides a battery module buffer mechanism and a battery pack. The battery module buffer mechanism comprises an adjusting mechanism, an abutting plate and a buffer part, wherein the adjusting mechanism is arranged in an upper shell of the battery pack, the abutting plate is arranged in the upper shell in a sliding manner, and the buffer part is arranged between the adjusting mechanism and the abutting plate; when the adjusting mechanism is operated, the adjusting mechanism can drive the abutting plate to slide in the upper shell in the height direction, so that the abutting plate is tightly pressed on the top of the battery module. According to the battery module buffer mechanism disclosed by the utility model, the adjusting structure and the abutting plate are arranged, so that the abutting plate can tightly press the battery module, the bottom of the battery module is ensured to be attached to a battery pack, the battery module is prevented from colliding with a battery pack shell due to vibration, and meanwhile, the buffer part is arranged, so that the battery module is prevented from being damaged. Part of acting force generated by vibration can be absorbed, and the buffering and damping effect on the battery module is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of power batteries, and in particular to a battery module buffer mechanism. The utility model also relates to a battery pack provided with the battery module buffer mechanism. Background Art

[0002] With the development and popularization of new energy vehicles, the safety and stability of battery packs, as their core components, have become a focus of industry attention. The battery pack is secured to the vehicle via the battery pack casing. During vehicle operation, the battery modules within the battery pack casing are subject to vibration and impact. If the forces generated by these vibrations and impacts cannot be effectively buffered, they can damage the battery module structure, affecting the performance and lifespan of the battery pack and even leading to safety accidents.

[0003] Existing battery packs typically incorporate an elastic buffer structure at the bottom of the battery module to mitigate the impact of vibrations on the battery module. However, during vehicle operation, the battery module can easily separate from the buffer structure due to vibrations, resulting in poor cushioning and shock absorption. Furthermore, the battery module can easily bounce due to vibrations and collide with the upper housing of the battery pack, which can damage the battery module or even lead to spontaneous combustion. Utility Model Content

[0004] In view of this, the present invention aims to provide a battery module buffer mechanism, which can prevent the battery module from colliding in the battery pack and improve the buffering and shock absorbing effect of the battery module.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0006] A battery module buffer mechanism includes an adjustment mechanism arranged in the upper shell of the battery pack, an abutment plate slidably arranged in the upper shell, and a buffer portion arranged between the adjustment mechanism and the abutment plate; when the adjustment mechanism is operated, the adjustment mechanism can drive the abutment plate to slide inside the upper shell along the height direction so that the abutment plate is tightly pressed against the top of the battery module.

[0007] Furthermore, the adjustment mechanism includes a movable plate slidably arranged in the upper shell, and a lifting part for driving the movable plate to move; the buffer part includes a plurality of shock-absorbing components, each shock-absorbing component is clamped between the movable plate and the abutment plate.

[0008] Furthermore, the shock absorbing assembly includes a sleeve provided at the bottom of the movable plate, and a fixing column provided at the top of the abutting plate; the fixing column is inserted into the sleeve, and a shock absorbing spring is provided between the fixing column and the sleeve.

[0009] Furthermore, the buffer portion further includes a plurality of dampers, and the dampers are connected between the movable plate and the abutting plate.

[0010] Furthermore, the shock absorbing components are arranged in rows and columns between the movable plate and the abutting plate; and the damper is provided between two adjacent shock absorbing components in any row or column.

[0011] Furthermore, a limiting block is formed on at least one side of the movable plate, and a limiting groove is formed on the inner wall of the upper shell; the limiting block can slide up and down in the limiting groove along the height direction.

[0012] Furthermore, the lifting part includes a rotating seat arranged on the top of the movable plate, a threaded column connected to the rotating seat, and a threaded sleeve arranged on the upper shell; the threaded sleeve passes through the upper shell, and the threaded column is screwed into the threaded sleeve.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] The battery module buffer mechanism described in the present invention, by providing an adjustment structure and an abutment plate, can enable the abutment plate to press the battery module tightly, ensuring that the bottom of the battery module fits the battery pack, thereby avoiding the battery module from colliding with the battery pack shell due to vibration. At the same time, the buffer part can absorb part of the force generated by vibration, thereby improving the buffering and shock-absorbing effect of the battery module.

[0015] By setting the movable plate, multiple shock-absorbing components can be set between the abutment plate and the movable plate. The shock-absorbing components can absorb and reduce vibrations in the height direction. By increasing the number of shock-absorbing components, the buffering and shock-absorbing effect of the battery module is effectively improved.

[0016] The shock-absorbing assembly includes a sleeve, a fixed column, and a shock-absorbing spring. The shock-absorbing spring has excellent shock absorption, effectively reducing the vibration of the battery module in the vertical direction. The sleeve and fixed column are arranged in conjunction with each other to limit the relative movement of the abutment plate and the movable plate to the vertical direction, preventing lateral movement between the abutment plate and the battery module, thereby preventing the battery module from colliding with the battery pack housing in the horizontal direction.

[0017] The buffer part also includes a plurality of dampers. Through the setting of the dampers, the vibration energy can be consumed, the vibration amplitude and vibration duration of the battery module and the abutment plate can be reduced, thereby reducing the impact on the battery module.

[0018] By arranging the shock-absorbing components in rows and columns and setting up the dampers, the shock-absorbing components and the dampers are evenly distributed between the movable plate and the abutment plate. The row and column arrangement of the shock-absorbing components ensures that the impact force can be evenly dispersed in the space between the entire movable plate and the abutment plate.

[0019] The coordinated arrangement of the limiting groove and the limiting block limits the up and down movement of the movable plate, ensuring the fixing effect of the abutment plate on the battery module, thereby ensuring the buffering and shock-absorbing effect on the battery module.

[0020] The setting of the rotating seat on the movable plate enables the threaded column to rotate freely on the top of the movable plate. By operating the threaded column to rotate, the threaded column can drive the movable plate to rise and fall. At the same time, the matching setting of the threaded column and the threaded sleeve has a self-locking effect. Therefore, the structure of the lifting part of this embodiment is simple and reliable, and can effectively drive the movable plate and drive the abutment plate to rise and fall.

[0021] Another object of the present invention is to provide a battery pack, in which the battery module buffer mechanism as described above is provided.

[0022] The battery module buffer mechanism and / or battery pack described in the present invention have the same technical effects as those of the prior art and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0024] Figure 1 This is a schematic diagram of the overall structure of the battery module buffer mechanism and the upper shell according to the first embodiment of the present utility model;

[0025] Figure 2 This is a schematic diagram of the internal structure of the battery module buffer mechanism according to the first embodiment of the present invention;

[0026] Figure 3 This is an exploded view of the movable plate, the abutting plate and the buffer portion according to the first embodiment of the present invention;

[0027] Figure 4 This is a schematic structural diagram of the limiting groove and the limiting block according to the first embodiment of the present utility model;

[0028] Figure 5 This is a structural diagram of the lifting part according to the first embodiment of the present utility model;

[0029] Description of reference numerals:

[0030] 1. Upper housing; 101. Threaded sleeve; 102. Limiting groove;

[0031] 2. Abutment plate;

[0032] 3. Movable plate; 301. Limit block;

[0033] 4. Lifting unit; 401. Rotating seat; 402. Threaded column; 403. Hexagon socket;

[0034] 5. Shock-absorbing assembly; 501. Sleeve; 502. Fixed column; 503. Shock-absorbing spring;

[0035] 6. Damper. DETAILED DESCRIPTION

[0036] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0037] In the following description, specific details such as specific system structures and techniques are provided for purposes of illustration rather than limitation to facilitate a thorough understanding of the embodiments of the present application. However, it will be apparent to those skilled in the art that the present application may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid obscuring the description of the present application with unnecessary detail.

[0038] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," and "outer" appear to indicate orientation or positional relationships, these are based on the orientation or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, if terms such as "first" and "second" appear, they are used solely for descriptive purposes and should not be construed as indicating or implying relative importance.

[0039] Furthermore, in the description of this utility model, unless otherwise explicitly defined, the terms "mounted," "connected," "connection," and "connector" should be interpreted broadly. For example, they can refer to fixed, removable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0040] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0041] Example 1

[0042] This embodiment relates to a battery module buffer mechanism, which is arranged inside the battery pack shell. In terms of overall structure, Figure 1 、 Figure 2 As shown, it includes an adjustment mechanism, an abutment plate 2 and a buffer portion arranged in the battery pack.

[0043] The adjustment mechanism is located within the upper housing 1 of the battery pack. By operating the adjustment mechanism, the adjustment mechanism drives the abutment plate 2 to slide vertically within the upper housing 1, pressing the abutment plate 2 against the top of the battery module. A buffer is provided between the adjustment mechanism and the abutment plate 2. In practice, a buffer structure is also provided between the lower housing of the battery pack and the bottom of the battery module.

[0044] As described above, by setting the adjustment structure and the abutment plate 2, the abutment plate 2 can be pressed tightly against the battery module to ensure that the bottom of the battery module fits the battery pack, thereby avoiding the battery module from colliding with the battery pack shell due to vibration. At the same time, the setting of the buffer part can absorb part of the force generated by the vibration, thereby improving the buffering and shock-absorbing effect of the battery module.

[0045] Based on the above overall introduction, specifically, in this embodiment, the operating adjustment mechanism can drive the abutment plate 2 to rise and fall. The change in the height of the abutment plate 2 can accommodate battery modules of different heights. At the same time, by changing the height of the abutment plate, the pressure of the abutment plate 2 on the top of the battery module can be changed. Therefore, the pressure of the abutment plate on the top of the battery module can be adjusted according to the actual vibration control, thereby further improving the buffering and shock absorption effect on the battery module. In addition, the buffer structure between the bottom of the battery module and the lower shell of the battery pack in this embodiment can be a conventional buffer structure well known to those skilled in the art, such as a buffer foam, a buffer rubber pad, etc.

[0046] In order to improve the ability of the buffer part to absorb the vibration force and enhance the buffering and shock absorption effect, such as Figure 2 As shown, the adjustment mechanism of this embodiment includes a movable plate 3 slidably disposed within the upper housing 1, and a lifting portion 4 for driving the movable plate 3. The buffering portion includes multiple shock-absorbing components 5, each of which is sandwiched between the movable plate 3 and the abutment plate 2. The provision of the movable plate 3 allows for multiple shock-absorbing components 5 to be disposed between the abutment plate 2 and the movable plate 3. These shock-absorbing components 5 can absorb and mitigate vibrations in the height direction. By increasing the number of shock-absorbing components 5, the buffering and shock-absorbing effect on the battery module is effectively improved.

[0047] Specifically, such as Figure 3As shown, the shock absorbing assembly 5 of this embodiment includes a sleeve 501 provided at the bottom of the movable plate 3, and a fixed column 502 provided at the top of the abutment plate 2. The fixed column 502 is inserted into the sleeve 501, and a shock absorbing spring 503 is provided between the fixed column 502 and the sleeve 501. The shock absorbing spring 503 has a good shock absorbing effect and can effectively reduce the vibration of the battery module in the height direction. At the same time, the matching arrangement of the sleeve 501 and the fixed column 502 enables the abutment plate 2 and the movable plate 3 to move relative to each other only in the height direction, avoiding lateral displacement of the abutment plate 2 and the battery module, thereby preventing the battery module from colliding with the battery pack shell in the lateral direction, thereby improving the protection effect of the battery module.

[0048] In addition, in order to further improve the buffering and shock absorption effect of the battery module, such as Figure 3 As shown, the buffering portion of this embodiment further includes a plurality of dampers 6 connected between the movable plate 3 and the abutment plate 2. The provision of the dampers 6 dissipates vibration energy, reducing the vibration amplitude and duration of the battery module and the abutment plate 2, thereby alleviating the impact on the battery module and further improving the buffering and shock absorption effect on the battery module. In practice, the dampers 6 of this embodiment can be conventional dampers 6 familiar to those skilled in the art, such as hydraulic dampers 6, magnetic dampers 6, etc., as long as they can effectively dissipate vibration energy.

[0049] In this embodiment, the shock absorbing assemblies 5 are arranged in rows and columns between the movable plate 3 and the abutment plate 2, and a damper 6 is provided between two adjacent shock absorbing assemblies 5 in any row or column. It can be understood that by arranging the shock absorbing assemblies 5 in rows and columns and providing the dampers 6, the shock absorbing assemblies 5 and the dampers 6 are evenly distributed between the movable plate 3 and the abutment plate 2. The row and column arrangement of the shock absorbing assemblies 5 ensures that the impact force can be evenly distributed throughout the space between the movable plate 3 and the abutment plate 2. It also avoids local damage to the abutment plate 2 or the movable plate 3 caused by excessive local force, thereby improving the buffering and shock absorption effect on the battery module. In specific implementation, the shock absorbing assemblies 5 of this embodiment are configured in a two-row and three-column arrangement, with each column having two shock absorbing assemblies 5 arranged at intervals, and a damper 6 is provided between the two shock absorbing assemblies 5.

[0050] In addition, if Figure 4As shown, in this embodiment, a limit block 301 is formed on at least one side of the movable plate 3, and a limit slot 102 is formed on the inner wall of the upper housing 1. The limit block 301 can slide up and down in the limit slot 102 along the height direction. It is understood that when the movable plate 3 moves downward too low, the abutment plate 2 will press against the top of the battery module, and due to the action of the buffering portion, the abutment plate 2 will apply significant pressure to the top of the battery module, which can easily damage the battery module. On the other hand, when the movable plate 3 moves upward too high, the abutment plate 2 exerts less pressure on the battery module, and the battery module is more likely to experience significant vertical displacement due to vibration, which can easily cause the battery module to separate from the buffer structure at its bottom. Therefore, through the coordinated arrangement of the limit slot 102 and the limit block 301, the limit slot 102 limits the vertical movement of the movable plate 3, ensuring that the abutment plate 2 effectively secures the battery module, thereby ensuring a buffering and shock-absorbing effect on the battery module. In practice, the limit blocks 301 are formed on both opposing sides of the movable plate 3 in this embodiment.

[0051] In addition, if Figure 5 As shown, the lifting portion 4 of this embodiment includes a rotating seat 401 provided on the top of the movable plate 3, a threaded column 402 connected to the rotating seat 401, and a threaded sleeve 101 provided on the upper shell 1. The threaded sleeve 101 passes through the upper shell 1, and the threaded column 402 is screwed into the threaded sleeve 101. The arrangement of the rotating seat 401 allows the threaded column 402 to rotate freely on the top of the movable plate 3. By operating the threaded column 402 to rotate, the threaded column 402 can drive the movable plate 3 to rise and fall. At the same time, the coordinated arrangement of the threaded column 402 and the threaded sleeve 101 has a self-locking effect. As a result, the structure of the lifting portion 4 of this embodiment is simple and reliable, and can effectively drive the movable plate 3 and drive the abutment plate 2 to rise and fall.

[0052] In specific implementation, in order to facilitate the rotation of the threaded column 402 to drive the movable plate 3 to rise and fall, the top of the threaded column 402 of this embodiment is provided with an inner hexagonal hole 403 for connecting a hexagonal wrench, so that the threaded column 402 can be rotated through the inner hexagonal hole 403.

[0053] In summary, the battery module buffer mechanism of this embodiment, through the setting of the adjustment structure and the setting of the abutment plate 2, can enable the abutment plate 2 to press the battery module tightly, ensuring that the bottom of the battery module fits the battery pack, thereby avoiding the battery module from colliding with the battery pack shell due to vibration. At the same time, the setting of the buffer part can absorb part of the force generated by the vibration, thereby improving the buffering and shock-absorbing effect of the battery module, and has good practicality.

[0054] Example 2

[0055] This embodiment relates to a battery pack. In terms of overall structure, the battery pack is provided with a battery module buffer mechanism as described in the first embodiment.

[0056] The battery pack of this embodiment is provided with the above-mentioned battery module buffer mechanism. When the battery pack is subjected to vibration as the vehicle travels, the battery module buffer mechanism can provide a buffering and shock-absorbing effect on the battery module and prevent the battery module from colliding inside the battery pack shell, thereby improving the safety of battery use.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A battery module buffer mechanism, characterized in that: The battery pack comprises an adjusting mechanism disposed in an upper shell, an abutting plate slidably disposed in the upper shell, and a buffer portion disposed between the adjusting mechanism and the abutting plate; When the adjustment mechanism is operated, the adjustment mechanism can drive the abutment plate to slide inside the upper shell along the height direction, so that the abutment plate is tightly pressed against the top of the battery module.

2. The battery module buffer mechanism according to claim 1, characterized in that: The adjustment mechanism includes a movable plate slidably arranged in the upper shell, and a lifting part for driving the movable plate to move; The buffer portion includes a plurality of shock absorbing components, and each shock absorbing component is sandwiched between the movable plate and the abutting plate.

3. The battery module buffer mechanism according to claim 2, characterized in that: The shock absorbing assembly includes a sleeve provided at the bottom of the movable plate and a fixing column provided at the top of the abutment plate; The fixing column is inserted into the sleeve, and a shock-absorbing spring is provided between the fixing column and the sleeve.

4. The battery module buffer mechanism according to claim 2, characterized in that: The buffer portion further includes a plurality of dampers connected between the movable plate and the abutting plate.

5. The battery module buffer mechanism according to claim 4, characterized in that: The shock absorbing components are arranged in rows and columns between the movable plate and the abutting plate; The damper is provided between two adjacent shock absorbing components in any row or column.

6. The battery module buffer mechanism according to claim 2, characterized in that: A limiting block is formed on at least one side of the movable plate, and a limiting groove is formed on the inner wall of the upper shell; The limiting block can slide up and down in the limiting groove along the height direction.

7. The battery module buffer mechanism according to any one of claims 2 to 6, characterized in that: The lifting part includes a rotating seat provided on the top of the movable plate, a threaded column connected to the rotating seat, and a threaded sleeve provided on the upper shell; The threaded sleeve passes through the upper shell, and the threaded column is screwed into the threaded sleeve.

8. A battery pack, characterized in that: The battery pack is provided with the battery module buffer mechanism according to any one of claims 1 to 7.

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