A lithium battery stack cell positioning base
By introducing buffering and connecting mechanisms into the lithium battery stack cell positioning base, the problem of metal fatigue fracture caused by vibration is solved, achieving convenient and cost-effective local maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI LIANYING PRECISION TECH CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-03
AI Technical Summary
Traditional lithium battery stack cell positioning bases are susceptible to metal fatigue fracture due to external vibrations during use, and the entire base needs to be replaced when partial damage occurs, increasing downtime costs.
A structure including a support plate, side plates and positioning plates is designed, and a buffer mechanism and a connecting mechanism are adopted. The bottom of the support plate is equipped with a buffer mechanism to buffer vibration, and the connecting mechanism can be manually and quickly disassembled for local maintenance.
It effectively buffers battery vibration, protects the stability of the positioning base structure, and allows for quick disassembly and replacement in case of local damage, reducing maintenance time and costs.
Smart Images

Figure CN224458316U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lithium battery technology, specifically a lithium battery stack cell positioning base. Background Technology
[0002] The lithium battery stack cell positioning base is the core of the mechanical support of the battery module. It is mainly used to fix the cell array, disperse vibration stress, and provide modular installation interface. At the same time, it solves the problems of strength attenuation, complex assembly, and insufficient shock absorption of traditional bases through structural innovation.
[0003] Traditional lithium battery stack cell positioning bases mostly use an aluminum alloy double-layer plate frame (upper positioning plate + lower support plate), with functional openings distributed on the sides and top surface. The "positioning-vibration reduction-connection" is integrated through pure mechanical geometric design.
[0004] Although the device has many beneficial effects, the following problems still exist: During use, the battery will vibrate due to external influences, and the integrated shock absorption of the traditional structure will cause metal fatigue and fracture after long-term use.
[0005] Secondly, if a part of the traditional integrated structure is damaged, the entire base needs to be replaced, which increases the cost of battery pack downtime. Utility Model Content
[0006] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.
[0007] 1. Technical problems to be solved:
[0008] To address the issue mentioned above where the battery vibrates due to external influences during use, the traditional integrated shock absorption structure can lead to metal fatigue and fracture over time.
[0009] Secondly, if a part of the traditional integrated structure is damaged, the entire base needs to be replaced, which increases the cost of battery pack downtime. This invention addresses this issue.
[0010] Therefore, the purpose of this utility model is to provide a lithium battery stack cell positioning base, which can buffer vibration and allow for individual maintenance of local components.
[0011] 2. Technical Solution:
[0012] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:
[0013] A lithium battery stack cell positioning base includes: a support plate and two side plates, the two side plates being disposed on the top of the support plate, and a positioning plate being disposed on the top of the two side plates;
[0014] Multiple buffer mechanisms are provided at the bottom end of the support plate to provide buffering during installation and prevent damage to the support plate during installation.
[0015] Multiple connecting mechanisms are provided, some of which are located between the support plate and the two side plates, and others are located between the positioning plate and the two side plates. These mechanisms can be quickly and manually disassembled, saving maintenance time.
[0016] As a preferred embodiment of the lithium battery stack cell positioning base of this utility model, the buffer mechanism includes: a groove a, the groove a is disposed at the bottom end of the support plate, and a groove b is disposed at the bottom of the groove a;
[0017] A damping spring a, one end of which is disposed in the groove a, and the other end of which is provided with a movable plate;
[0018] A limiting rod, one end of which is disposed on the movable plate and the other end of which is disposed in the groove b.
[0019] As a preferred embodiment of the lithium battery stack cell positioning base of this utility model, the connecting mechanism includes: a connecting block a, which is disposed at the top of the side plate;
[0020] Connecting groove a, wherein the connecting groove a is disposed at the bottom end of the positioning plate;
[0021] Connecting block b, wherein the connecting block b is disposed at the bottom end of the side plate;
[0022] Connecting groove b, wherein the connecting groove b is disposed at the top of the support plate;
[0023] Multiple limiting grooves, some of which are provided on the side wall of the connecting block a, and other of which are provided on the side wall of the connecting block b;
[0024] Multiple grooves c, some of the grooves c are disposed on the side wall of the connecting groove a, and other grooves c are disposed on the side wall of the connecting groove b;
[0025] A damping spring b, one end of which is disposed in the groove c, and a limit ball is disposed at the other end of the damping spring b.
[0026] As a preferred embodiment of the lithium battery stack cell positioning base of this utility model, the bottom end of the support plate is provided with multiple mounting grooves and multiple heat dissipation holes a, and the top end of the support plate is provided with multiple heat dissipation grooves.
[0027] As a preferred embodiment of the lithium battery stack cell positioning base of this utility model, the upper end of the positioning plate is provided with multiple positioning holes and multiple heat dissipation holes b.
[0028] In a preferred embodiment of the lithium battery stack cell positioning base of this utility model, a slot is provided between the support plate and the positioning plate.
[0029] 3. Beneficial effects:
[0030] Compared with the prior art, the beneficial effects of this utility model are:
[0031] This lithium battery stack cell positioning base, by setting a buffer mechanism at the bottom of the support plate, can buffer the vibration of the battery and protect the stability of the positioning base structure.
[0032] This type of lithium battery stack cell positioning base connects the support plate, side plate and positioning plate through a connecting mechanism. When there is partial damage, it can be directly disassembled and replaced, reducing the maintenance time of the positioning base. Attached Figure Description
[0033] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0034] Figure 1 This is a schematic diagram of the overall structure of a lithium battery stack cell positioning base according to the present invention;
[0035] Figure 2 This is a schematic diagram of the base plate structure of a lithium battery stack cell positioning base according to the present invention.
[0036] Figure 3 This is a schematic diagram of the buffer mechanism structure of a lithium battery stack cell positioning base according to the present invention;
[0037] Figure 4 This is a schematic diagram of the top plate structure of a lithium battery stack cell positioning base according to the present invention;
[0038] Figure 5 This is a schematic diagram of the connection mechanism of a lithium battery stack cell positioning base according to the present invention;
[0039] Figure 6 This is a schematic diagram of the groove c structure of a lithium battery stack cell positioning base according to the present invention.
[0040] The following are the labeling instructions in the diagram: 1. Support plate; 11. Mounting groove; 12. Heat dissipation hole a; 13. Heat dissipation groove; 2. Side plate; 3. Positioning plate; 31. Positioning hole; 32. Heat dissipation hole b; 4. Slot; 100. Buffer mechanism; 101. Groove a; 102. Groove b; 103. Damping spring a; 104. Movable plate; 105. Limiting rod; 200. Connecting mechanism; 201. Connecting block a; 202. Connecting groove a; 203. Connecting block b; 204. Connecting groove b; 205. Limiting groove; 206. Groove c; 207. Damping spring b; 208. Limiting ball. Detailed Implementation
[0041] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0042] This utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not be construed as limiting the scope of protection of this utility model. In actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.
[0043] The orientation or positional relationship indicated in the terminology is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing the present invention and simplifying the description. It is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.
[0044] The term "connection method" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0045] The embodiments of this utility model will now be described in further detail with reference to the accompanying drawings.
[0046] This utility model provides an overall structural schematic diagram of an embodiment of a lithium battery stack cell positioning base, including:
[0047] Please see Figures 1-6The lithium battery stack cell positioning base of this embodiment includes: a support plate 1 and two side plates 2, the two side plates 2 are disposed on the top of the support plate 1, and a positioning plate 3 is disposed on the top of the two side plates 2.
[0048] Multiple buffer mechanisms 100 are provided at the bottom of the support plate 1 to provide buffering during the installation of the support plate 1 and prevent damage to the support plate 1 during installation.
[0049] Multiple connecting mechanisms 200 are provided. Some connecting mechanisms 200 are located between the support plate 1 and the two side plates 2, while other connecting mechanisms 200 are located between the positioning plate 3 and the two side plates 2. They can be manually and quickly disassembled, saving maintenance time.
[0050] It is worth noting that, specifically, for the purpose of cushioning, the cushioning mechanism 100 includes: a groove a101 is formed at the bottom end of the support plate 1, and a groove b102 is formed at the bottom of the groove a101;
[0051] One end of the damping spring a103 is welded into the groove a101, and the other end of the damping spring a103 is welded to a movable plate 104, so that the movable plate 104 can move freely to change the state of the damping spring a103.
[0052] One end of the limiting rod 105 is welded to the movable plate 104, and the other end of the limiting rod 105 is slidably connected in the groove b102 in order to prevent the position of the damping spring a from shifting.
[0053] Next, for connection purposes, specifically, the connection mechanism 200 includes: a connection block a201 welded to the top of the side plate 2;
[0054] The connecting groove a202 is located at the bottom of the positioning plate 3;
[0055] Connecting block b203 is welded to the bottom end of side plate 2;
[0056] The connecting groove b204 is formed at the top of the support plate 1;
[0057] Multiple limiting grooves 205, some of which are formed on the side wall of connecting block a201, and others are formed on the side wall of connecting block b203.
[0058] Multiple grooves c206, some grooves c206 are formed on the side wall of connecting groove a202, and other grooves c206 are formed on the side wall of connecting groove b204;
[0059] Damping spring b207, one end of which is welded into groove c206, and the other end of which is welded with a limiting ball 208, so that the limiting ball 208 can engage with connecting block a201 and connecting block b203 to prevent them from falling off.
[0060] Meanwhile, for heat dissipation, specifically, the bottom of the support plate 1 is provided with multiple mounting slots 11 and multiple heat dissipation holes a12, and the top of the support plate 1 is provided with multiple heat dissipation slots 13.
[0061] Furthermore, for positioning purposes, specifically, the upper end of the positioning plate 3 is provided with multiple positioning holes 31 and multiple heat dissipation holes b32.
[0062] Finally, to prevent wire harnesses from passing through, a slot 4 is provided between the support plate 1 and the positioning plate 3 to allow wire harnesses to pass through.
[0063] Combination Figures 1-6 The specific usage process of the lithium battery stack cell positioning base of this embodiment is as follows:
[0064] 1: According to the actual use, align the mounting groove 11 of the support plate 1 with the installation area and install it. The movable plate 104 is squeezed and contracted, the damping spring contracts, and the limit rod 105 slides into the groove b102.
[0065] 2: Align and insert connecting block a201 and connecting groove a202, then align and insert connecting block b203 and connecting groove b204. The limiting ball 208 is compressed, and the damping spring b207 contracts. After connecting block a201 and connecting block b203 reach the bottom of connecting groove a202 and connecting groove b204, the limiting ball 208 enters the limiting groove 205, and the damping spring rebounds.
[0066] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A lithium battery stack cell positioning base, characterized in that, It includes: a support plate (1) and two side plates (2), the two side plates (2) are disposed at the top of the support plate (1), and a positioning plate (3) is disposed at the top of the two side plates (2); Multiple buffer mechanisms (100) are disposed at the bottom end of the support plate (1); Multiple connecting mechanisms (200) are provided, some of which are disposed between the support plate (1) and the two side plates (2), and others are disposed between the positioning plate (3) and the two side plates (2).
2. The lithium battery stack cell positioning base of claim 1, wherein, The buffer mechanism (100) includes: a groove a (101), the groove a (101) is disposed at the bottom end of the support plate (1), and a groove b (102) is disposed at the bottom of the groove a (101); A damping spring a (103) is provided at one end in the groove a (101) and at the other end of the damping spring a (103) is a movable plate (104). A limiting rod (105) is provided at one end on the movable plate (104) and at the other end in the groove b (102).
3. The lithium battery stack cell positioning base of claim 2, wherein, The connecting mechanism (200) includes a connecting block a (201), which is disposed at the top of the side plate (2); Connecting groove a (202), the connecting groove a (202) is disposed at the bottom end of the positioning plate (3); Connecting block b (203), the connecting block b (203) is disposed at the bottom end of the side plate (2); A connecting groove b (204) is provided at the top of the support plate (1); Multiple limiting grooves (205), some of the limiting grooves (205) are provided on the side wall of the connecting block a (201), and the other part of the limiting grooves (205) are provided on the side wall of the connecting block b (203); Multiple grooves c (206), some of the grooves c (206) are disposed on the side wall of the connecting groove a (202), and other grooves c (206) are disposed on the side wall of the connecting groove b (204); A damping spring b (207) is provided at one end in the groove c (206) and at the other end of the damping spring b (207) is a limiting ball (208).
4. The lithium battery stack cell positioning base of claim 3, wherein, The bottom end of the support plate (1) is provided with multiple mounting grooves (11) and multiple heat dissipation holes a (12), and the top end of the support plate (1) is provided with multiple heat dissipation grooves (13).
5. The lithium battery stack cell positioning base of claim 4, wherein, The upper end of the positioning plate (3) is provided with multiple positioning holes (31) and multiple heat dissipation holes b (32).
6. The lithium battery stack cell positioning base of claim 5, wherein, A slot (4) is provided between the support plate (1) and the positioning plate (3).