Battery pack shock absorbing sleeve device

Abstract

The utility model provides a kind of battery pack shock-absorbing sleeve device, to solve the problems of poor shock absorption, inconvenient installation and poor adaptability of existing shock-absorbing sleeve, including support seat, cylindrical cylinder and connecting head and other components, support seat contains chassis, cylinder and support seat upper end, there is hollow tube in chassis, bottom surface outer periphery is equipped with gasket and annular groove, containing spring groove and spring;Cylindrical cylinder is matched with support seat upper end and connecting head;Connecting head contains disc, nut, boss and center tube, with polygonal cylinder, thread, rectangular through slot and other designs, so that cylindrical cylinder is movable, and is slidably connected with support seat upper end and connecting head, through the close cooperation of each component and spring layout, multidirectional shock absorption, high installation stability, good adaptability, suitable for battery pack shock absorption in multiple fields such as electric vehicles, can effectively protect the internal components of battery pack, improve its stability and service life.

Description

Technical Field

[0001] This utility model relates to the field of new energy technology, and in particular to a battery pack shock absorption sleeve device. Background Technology

[0002] Vibration protection is a crucial aspect of battery pack installation and use. With the widespread application of battery packs in electric vehicles, energy storage systems, and various electronic devices, they inevitably experience vibrations from different directions and to varying degrees during operation. These vibrations may damage the cells, wiring, and connecting components inside the battery pack, thereby affecting its performance, lifespan, and safety. Therefore, reliable vibration damping devices are needed to effectively protect them.

[0003] The utility model with authorization announcement number CN201229976Y relates to an "insulating sleeve for preventing short circuits in lithium-ion batteries during formation". Its features include: the insulating sleeve is cylindrical, with its inner diameter matching the diameter of the positive and negative terminals of the battery; a through hole at the center of the top of the insulating sleeve corresponding to the positive terminal position of the battery, exposing the positive terminal. This utility model allows for safe, convenient, and quick installation and removal, ensuring that the battery does not short-circuit during transfer, avoiding the high cost and low efficiency of the original process. However, this structure is relatively simple, with limited shock absorption when dealing with vibrations from different directions, and poor installation stability, making it difficult to meet the requirements for stable fixation of battery packs under complex working conditions.

[0004] To improve shock absorption, a utility model patent with authorization announcement number CN214898671U discloses a battery shock absorption structure for a battery pack, including a housing and a battery pack. The battery pack is disposed inside the housing, which includes a top cover and a bottom cover. The key feature is that the bottom cover has at least one shock-absorbing strip that is higher than the bottom surface of the bottom cover. The shock-absorbing strip is fixedly connected to the bottom cover, and the shock-absorbing strip suspends the battery pack. The advantage is that the shock-absorbing strip between the battery pack and the housing can provide a certain shock absorption effect for the battery pack and reduce damage to the battery pack. However, the assembly of the components of this utility model is cumbersome, which increases the installation time and labor costs, and the compatibility with different specifications of battery packs is also poor.

[0005] In summary, existing battery pack shock absorption sleeve devices typically have the following drawbacks: 1) Poor shock absorption: Existing battery pack shock absorbers cannot achieve comprehensive and effective shock absorption when faced with vibrations of different directions and intensities, which may still cause the battery pack to be affected by significant vibrations, affecting the stability and service life of its internal components. 2) Inconvenient installation: Although the multi-component structure of some battery pack shock absorber sleeves improves the shock absorption performance to a certain extent, the assembly process is complicated and requires precise alignment and connection of multiple components. This not only increases the installation time and labor costs, but also easily affects the normal use of the device due to improper installation. 3) Poor adaptability: Some battery pack shock absorber sleeves have a relatively simple structural design and the connections between components are not tight enough. Under long-term vibration, they are prone to loosening, which in turn affects the performance of the entire shock absorber and cannot guarantee the reliability of the battery pack fixation, thus affecting the safe operation of the battery pack. Summary of the Invention

[0006] The purpose of this utility model is to solve the problems in the prior art by proposing a battery pack shock-absorbing sleeve device, which can solve the problems of poor shock absorption effect, inconvenient installation and poor adaptability.

[0007] To achieve the above objectives, this utility model proposes a battery pack shock-absorbing sleeve device, comprising a support base, a cylindrical tube, and a connector. The support base includes a chassis with a hollow tube arranged along its central axis inside. A gasket is provided on the outer periphery of the chassis's bottom surface, and an annular groove is provided on the inner side of the gasket. A spring groove is located on the inner wall of the annular groove and is fitted with a spring. A column is connected to the chassis, and the top of the column forms the upper end of the support base. A threaded section is provided on the outer periphery of the upper end of the support base. The cylindrical tube's inner cylindrical surface is fitted with the upper end of the support base and the connector. The connector includes a disc with a nut on its upper end. A boss is fitted inside the nut, and a central tube passes through the boss and extends downward along the disc.

[0008] Preferably, the diameter of the spring groove is larger than the diameter of the hollow tube, the length of the spring groove is smaller than the length of the hollow tube, and the hollow tube is embedded in the spring groove.

[0009] Preferably, the upper part of the chassis is a polygonal column, the lower part of the chassis is a base, and the polygonal column and the bottom surface of the chassis are integrally formed.

[0010] Preferably, the spring groove and the central tube further include threads, which are evenly distributed on the outer periphery of the spring groove and the central tube.

[0011] Preferably, the cylindrical tube includes a rectangular through groove, which is nested in the outer wall of the cylindrical tube.

[0012] Preferably, the cylindrical tube is a movable structure, and the cylindrical tube is slidably connected to the upper end of the support base and the connector.

[0013] Preferably, the outer diameter of the central tube of the connector is matched with the inner diameter of the cylindrical tube.

[0014] The beneficial effects of this utility model are: 1) Excellent multi-directional shock absorption effect: Through the unique structure of the support base, cylindrical tube and connector, as well as the reasonable layout of the spring, it can effectively buffer and absorb the vibration of the battery pack in different directions, protect the battery pack in all directions, and improve the stability and service life of the battery pack in complex vibration environment. 2) High installation stability: The components are connected by various tight fit methods such as threaded connection and nesting. For example, the threaded section at the upper end of the support seat fits with the inner cylindrical surface of the cylindrical tube, and the nut of the connector is connected with the external connecting parts. This ensures that the entire device is not easy to loosen after installation and has strong stability. It effectively solves the problem that some structures in the existing technology are prone to loosening after long-term vibration, and ensures the continuity and reliability of the shock absorption performance. 3) Good adaptability: The cylindrical tube is a movable structure. Its sliding connection with the upper end of the support base and the connector, as well as the flexible design of the size of each component, enable the device to adapt to battery packs of different specifications, models and installation space requirements, which greatly expands its application range and meets the diverse battery pack shock absorption needs in the market.

[0015] The features and advantages of this utility model will be described in detail through embodiments and accompanying drawings. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 yes Figure 1 Schematic diagram of the support base; Figure 3 yes Figure 2 A schematic diagram of the base structure; Figure 4 yes Figure 1 Schematic diagram of the cylindrical tube structure; Figure 5 yes Figure 1 Schematic diagram of the connector structure; Figure 6 yes Figure 5 Another structural diagram from another angle.

[0017] Numbering on the map: 1-Support base; 101-Base; 102-Column; 103-Upper end of support base; 104-Threaded section; 105-Hollow tube; 106-Washer; 107-Annular groove; 108-Spring groove; 109-Spring; 110-Polygonal column; 2-Cylindrical tube; 201-Rectangular through groove; 3-Connector; 301-Disc; 302-Nut; 303-Boss; 304-Center tube 304; 4-Thread. Detailed Implementation

[0018] Example 1: See Figure 1 This utility model discloses a battery pack shock-absorbing sleeve device, comprising a support base 1, a cylindrical tube 2, and a connector 3. The support base 1 includes a chassis 101, a hollow tube 105 disposed within the chassis 101 along its central axis, a gasket 106 disposed on the outer periphery of the bottom surface of the chassis 101, an annular groove 107 disposed on the inner side of the gasket 106, a spring groove 108 located on the inner wall of the annular groove 107, and the spring groove 108 engaging with a spring 109. A column 102 is connected to 01. The top of the column 102 is the upper end of the support base 103. The upper end of the support base 103 has a threaded section 104 on its outer periphery. The inner cylindrical surface of the cylindrical tube 2 is respectively fitted with the upper end of the support base 103 and the connector 3. The connector 3 includes a disc 301. A nut 302 is provided on the upper end of the disc 301. The boss 303 is sleeved in the nut 302. The central tube 304 passes through the boss 303 and extends downward along the disc 301.

[0019] The diameter of the spring groove 108 is larger than the diameter of the hollow tube 105, and the length of the spring groove 108 is smaller than the length of the hollow tube 105. The hollow tube 105 is embedded in the spring groove 108. The upper end of the base 101 is a polygonal column 110, and the lower end of the base 101 is a base 111. The polygonal column 110 and the bottom surface of the base 101 are integrally formed. The spring groove 108 and the central tube 304 also include threads 4, which are evenly distributed on the outer periphery of the spring groove 108 and the central tube 304. The cylindrical tube 2 includes a rectangular through groove 201, which is nested in the outer wall of the cylindrical tube 2. The cylindrical tube 2 is a movable structure, and it is slidably connected to the upper end 103 of the support base and the connector 3. The outer diameter of the central tube 304 of the connector 3 is adapted to the inner diameter of the cylindrical tube 2.

[0020] In this embodiment, the polygonal column 110 of the support base 1 is hexagonal, the base 101 is circular, the column 102 is cylindrical and connected to the center of the base 101, the upper end 103 of the support base is also cylindrical, and the threaded section 104 is arranged around its outer circumference; the cylindrical tube 2 is a cylindrical tube with open ends; the connector 3 is a disc shape adapted to the cylindrical tube 2 and is movably sleeved on the outer circumference of the upper end 103 of the support base, and a central tube 304 adapted to the inner diameter of the cylindrical tube 2 is provided at its center position, hexagonal nuts 302 are distributed on the disc 301, the boss 303 is annular, the central tube 304 is cylindrical, passes through the boss 303 and extends downward along the disc 301.

[0021] The cylindrical support 1 provides more uniform support, and together with the cylindrical tube 2, it ensures high stability during movement. The hexagonal nut 302 on the connector 3 provides a secure connection. Overall, it has high strength, good shock absorption performance, and corrosion resistance, enabling it to work stably in harsh environments. In summary, the battery pack shock absorber device of this embodiment features a simple structure, light weight, convenient installation, reliable connection, and good shock absorption performance. It is suitable for vehicle battery packs with strict quality requirements and relatively regular installation space, such as the chassis battery pack installation of electric vehicles. This shock absorber device can effectively buffer these vibrations and protect the internal components of the battery pack, such as the cells and wiring. At the same time, its lightweight design will not have too much negative impact on the overall performance of the vehicle, and the installation process is simple, facilitating quick installation on the battery pack production assembly line or during vehicle maintenance.

[0022] Example 2: This embodiment is basically the same as embodiment 1, except that: the support base 1 is in the shape of a cuboid, its base 101 is a square plate structure, the column 102 is cylindrical, the cylindrical tube 2 is a short cylindrical tube with openings at both ends, and two axial guide keys are provided on the inner wall, which are movably fitted around the outer periphery of the upper end 103 of the support base.

[0023] In this embodiment, the rectangular components are easy to install and arrange in a regular space. The cylindrical support 1 and the guide key strip have high stability during movement and are suitable for installation in vehicle battery packs that require high spatial regularity and quick installation.

[0024] Example 3: This embodiment is basically the same as embodiment 1, except that: the cylindrical tube 2 is a square-round cylinder with sliding rails on its four sides, and multiple positioning holes on the sliding rails. It is movably fitted around the outer periphery of the upper end 103 of the support base, and the connector 3 is a square-round flange that is compatible with the cylindrical tube 2.

[0025] The sliding rail and positioning hole design on the cylindrical tube 2 facilitates position adjustment and is suitable for battery packs installed in irregularly shaped or space-constrained industrial equipment cabins.

[0026] Working principle: First, the base 101 of the support pedestal 1 is installed on the mounting base plate of the battery pack and fixed by the connection structure between the base and the mounting base plate. Then, the cylindrical tube 2 is fitted onto the upper end 103 of the support pedestal 1, so that the inner cylindrical surface of the cylindrical tube 2 mates with the threaded section 104 on the outer circumference of the upper end 103 of the support pedestal. The cylindrical tube 2 is rotated to move it to a suitable position along the upper end 103 of the support pedestal. At this time, the spring 109 is in a pre-compressed state. Next, the center tube 304 of the connector 3 is inserted into the cylindrical tube 2. At the other end, the outer diameter of the central tube 304 is matched with the inner diameter of the cylindrical tube 2 to ensure a tight connection. By rotating the connector 3, the central tube 304 on the disc is aligned with the inner wall of the cylindrical tube 2, thereby completing the installation of the entire shock-absorbing sleeve device. When the battery pack is vibrated, the cylindrical tube 2 slides between the upper end 103 of the support base and the connector 3. At the same time, the spring 109 deforms in the spring groove 108 to absorb and buffer the vibration energy, effectively reducing the amplitude of vibration transmitted to the battery pack and protecting the internal components of the battery pack.

[0027] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A battery pack shock-absorbing sleeve device, comprising a support base (1), a cylindrical tube (2), and a connector (3), characterized in that: The support base (1) includes a chassis (101), a hollow tube (105) is provided inside the chassis (101) along the central axis, a gasket (106) is provided on the outer periphery of the bottom surface of the chassis (101), an annular groove (107) is provided on the inner side of the gasket (106), a spring groove (108) is located on the inner wall of the annular groove (107), the spring groove (108) is fitted with a spring (109), and a column (102) is connected to the chassis (101). The top end is the upper end of the support base (103), and the outer periphery of the upper end of the support base (103) is provided with a threaded section (104); the inner cylindrical surface of the cylindrical tube (2) is respectively fitted with the upper end of the support base (103) and the connector (3). The connector (3) includes a disc (301), and the upper end of the disc (301) is provided with a nut (302). The boss (303) is sleeved in the nut (302), and the central tube (304) passes through the boss (303) and extends downward along the disc (301).

2. The battery pack shock-absorbing sleeve device as described in claim 1, characterized in that: The diameter of the spring groove (108) is greater than the diameter of the hollow tube (105), the length of the spring groove (108) is less than the length of the hollow tube (105), and the hollow tube (105) is embedded in the spring groove (108).

3. The battery pack shock-absorbing sleeve device as described in claim 1, characterized in that: The upper end of the chassis (101) is a polygonal column (110), and the lower end of the chassis (101) is a base (111). The polygonal column (110) and the bottom surface of the chassis (101) are integrally formed.

4. The battery pack shock-absorbing sleeve device as described in claim 1, characterized in that: The spring groove (108) and the central tube (304) also include threads (4), which are evenly distributed on the outer periphery of the spring groove (108) and the central tube (304).

5. The battery pack shock-absorbing sleeve device as described in claim 1, characterized in that: The cylindrical tube (2) includes a rectangular through groove (201), which is nested in the outer wall of the cylindrical tube (2).

6. The battery pack shock-absorbing sleeve device as described in claim 1, characterized in that: The cylindrical tube (2) is a movable structure, and the cylindrical tube (2) is slidably connected to the upper end (103) of the support base and the connector (3).

7. A battery pack shock-absorbing sleeve device as described in any one of claims 1 to 6, characterized in that: The outer diameter of the central tube (304) of the connector (3) is adapted to the inner diameter of the cylindrical tube (2).

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