CN220821746U

CN220821746U - Explosion-proof protection board of lithium cell

Info

Publication number: CN220821746U
Application number: CN202322242855.2U
Authority: CN
Inventors: 刘广辉; 张桥桥; 王礼刚; 刘文清
Original assignee: Jiangxi Jiabaida Electronic Technology Co ltd
Current assignee: Jiangxi Jiabaida Electronic Technology Co ltd
Priority date: 2023-08-21
Filing date: 2023-08-21
Publication date: 2024-04-19
Anticipated expiration: 2033-08-21

Abstract

The utility model discloses an explosion-proof protection plate for a lithium battery, and relates to the technical field of lithium batteries. The utility model comprises a protection plate component, wherein the two side surfaces of the protection plate component are fixedly connected with radiating grooves, an installation screen plate is fixedly installed in the radiating grooves, a radiating fan is fixedly installed on one surface of the installation screen plate, a plurality of installation grooves are installed on one surface of the radiating grooves, a dust screen is connected in the installation grooves in a sliding mode, the upper surface of the protection plate component is hinged with a box cover, a plurality of sealing rubber strips are adhered and attached to the peripheral side surfaces of the box cover, a placing plate is installed in the protection plate component, sliding blocks are fixedly connected to the two side surfaces of the placing plate, and sliding grooves are formed in the other surface of the installation screen plate. According to the utility model, the plurality of radiating fans are arranged, so that when the battery pack works, the radiating fans can actively radiate heat of the battery pack, the radiating performance of the battery pack is improved, combustion and even explosion caused by overhigh temperature of the battery pack are avoided, and the explosion-proof and flame-proof effects are good.

Description

Explosion-proof protection board of lithium cell

Technical Field

The utility model belongs to the technical field of lithium batteries, and particularly relates to an explosion-proof protection plate for a lithium battery.

Background

When the lithium battery is used, in order to ensure the safety of the battery pack, the protection plate is required to protect the peripheral side face of the battery pack, the protection plate generally dissipates heat through the cooling holes formed in the surface of the protection plate, the active cooling performance of the protection plate is poor, the battery temperature is easy to rise after long-time use, explosion can occur even when serious, in addition, the protection capability of the existing battery pack protection plate is poor, the battery pack is easy to cause extrusion damage when being collided, and in order to solve the problems, the lithium battery explosion-proof protection plate is provided.

Disclosure of utility model

The utility model aims to provide an explosion-proof protection plate for a lithium battery, which solves the problems that when the lithium battery is used, the protection plate is required to protect the peripheral side surface of the lithium battery in order to ensure the safety of a battery pack, the protection plate generally dissipates heat through a radiating hole formed in the surface of the protection plate, the active radiating performance of the protection plate is poor, the temperature of the battery is easy to rise after long-time use, even explosion can occur when the battery pack is seriously used, and in addition, the protection capacity of the existing protection plate for the battery pack is poor, and the battery pack is easy to be extruded and damaged when the battery pack is collided.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

The utility model relates to an explosion-proof protection plate for a lithium battery, which comprises a protection plate assembly and a battery pack, wherein both sides of the protection plate assembly are fixedly connected with heat dissipation grooves, an installation screen plate is fixedly installed in the heat dissipation grooves, a heat dissipation fan is fixedly installed on one surface of the installation screen plate, a box cover is hinged to the upper surface of the protection plate assembly, a plurality of sealing rubber strips are adhered to the peripheral side surface of the box cover, a placement plate is installed in the protection plate assembly, sliding blocks are fixedly connected to both sides of the placement plate, and a sliding groove is formed in the other surface of the installation screen plate.

The upper surface of the placing plate is fixedly provided with two vertical plates, the opposite surfaces of the two vertical plates are fixedly provided with mounting posts, the inner fixedly connected with fixing springs of the mounting posts, one ends of the fixing springs are fixedly connected with telescopic rods, and one ends of the telescopic rods are fixedly connected with fixing plates.

The bottom surface fixed mounting of guard plate subassembly's inner wall has first connecting plate and a plurality of damping bumper shock absorber, the upper surface of first connecting plate is connected with protection spring and articulates there is the head rod, the upper end of head rod articulates there is the second connecting rod, the upper end of second connecting rod articulates there is the second connecting plate, second connecting plate and damping bumper shock absorber all with place board fixed connection, protection spring's upper end and second connecting plate fixed connection.

The sliding block is installed in the sliding groove and is in sliding fit with the sliding groove.

The two radiating grooves are symmetrically arranged relative to the protection plate assembly.

Wherein, telescopic link and erection column sliding fit.

Wherein, the telescopic link is with fixed spring extrusion cooperation.

The utility model has the following beneficial effects:

1. According to the utility model, the plurality of radiating fans are arranged, so that when the battery pack works, the radiating fans can actively radiate heat of the battery pack, the radiating performance of the battery pack is improved, combustion and even explosion caused by overhigh temperature of the battery pack are avoided, and the explosion-proof and flame-proof effects are good; through setting up a plurality of joint strip, can strengthen the leakproofness of guard plate subassembly, can play dampproofing effect.

2. According to the utility model, the battery pack is placed between the two fixing plates by arranging the fixing springs and the fixing plates, and the fixing springs provide an elastic action for the fixing plates, so that the battery pack can be fixed, and meanwhile, the battery pack can be buffered and protected from two sides; through setting up protection spring, receive the collision back when the group battery, the second connecting plate extrudees protection spring, and protection spring cooperation damping bumper shock absorber can play shock attenuation buffering's effect, can protect the group battery, improves the security of group battery.

Of course, it is not necessary for any one product to practice the utility model to achieve all of the advantages set forth above at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic view of a front left side perspective of the present utility model;

FIG. 3 is a schematic diagram of the front view of the present utility model;

FIG. 4 is a right side view of the present utility model;

Fig. 5 is a schematic view of the cross-sectional structure A-A of fig. 4.

In the drawings, the list of components represented by the various numbers is as follows: 1. a fender assembly; 2. a heat sink; 3. a box cover; 4. a mounting groove; 5. a dust screen; 6. a battery pack; 7. installing a screen plate; 8. a heat dissipation fan; 9. placing a plate; 10. a riser; 11. a mounting column; 12. a fixed spring; 13. a telescopic rod; 14. a fixing plate; 15. a chute; 16. a slide block; 17. a first connection plate; 18. a second connecting plate; 19. a first connecting rod; 20. a second connecting rod; 21. a protective spring; 22. damping shock absorber.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "upper," "middle," "outer," "inner," and the like indicate an orientation or a positional relationship, and are merely for convenience of describing the present utility model and simplifying the description, but do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Referring to fig. 1-5, the utility model discloses an explosion-proof protection board for a lithium battery, which comprises a protection board assembly 1, wherein both side surfaces of the protection board assembly 1 are fixedly connected with a heat dissipation groove 2, an installation screen 7 is fixedly installed in the heat dissipation groove 2, a surface of the installation screen 7 is fixedly provided with a heat dissipation fan 8, and when the battery pack 6 works, the heat dissipation fan 8 can actively dissipate heat of the battery pack 6, so that the heat dissipation performance of the battery pack 6 is improved, combustion and even explosion caused by overhigh temperature of the battery pack is avoided, and the explosion-proof and flame-proof effects are good; a plurality of mounting grooves 4 are arranged on one surface of the heat dissipation groove 2, a dust screen 5 is connected in a sliding manner in the mounting grooves 4, and the dust screen 5 is arranged, so that ventilation is realized, and meanwhile, the inside of the protection plate assembly 1 can be kept clean; the upper surface of the protection plate assembly 1 is hinged with the box cover 3, a plurality of sealing rubber strips 6 are adhered to the peripheral side surface of the box cover 3, and the sealing performance of the protection plate assembly 1 can be enhanced by arranging the plurality of sealing rubber strips 6, so that a dampproof effect can be achieved; the inside of the protection plate assembly 1 is provided with a placement plate 9, both side surfaces of the placement plate 9 are fixedly connected with sliding blocks 16, and the other surface of the installation screen 7 is provided with sliding grooves 15.

Wherein, place the upper surface fixed mounting of board 9 and have two risers 10, the equal fixed mounting of relative surface of two risers 10 has erection column 11, the internal fixation of erection column 11 has fixed spring 12, the one end fixedly connected with telescopic link 13 of fixed spring 12, the one end fixedly connected with fixed plate 14 of telescopic link 13, through setting up fixed spring 12 and fixed plate 14, place the group battery between two fixed plates 14, fixed spring 12 provides an elasticity effect for fixed plate 14, can fix the group battery, can play the effect of buffering protection to the group battery from both sides simultaneously.

The bottom surface of the inner wall of the protection plate assembly 1 is fixedly provided with a first connecting plate 17, the upper surface of the first connecting plate 17 is connected with a protection spring 21 and is hinged with a first connecting rod 19, after the battery pack is collided, the protection spring 21 is extruded by a second connecting plate 18, the protection spring 21 is matched with a damping shock absorber 22 to play a role in buffering and damping, the battery pack 6 can be protected, and the safety of the battery pack 6 is improved; the upper end of the first connecting rod 19 is hinged with a second connecting rod 20, the upper end of the second connecting rod 20 is hinged with a second connecting plate 18, the second connecting plate 18 and a damping shock absorber 22 are fixedly connected with the placing plate 9, and the upper end of the protection spring 21 is fixedly connected with the second connecting plate 18.

Wherein, slider 16 installs in spout 15, and slider 16 and spout 15 sliding fit, set up slider 16 and spout 15, when placing board 9 lift, slider 15 cooperation spout 15 can carry out spacingly to placing board 9.

Wherein, two heat dissipation grooves 2 are the symmetry setting about guard plate assembly 1, set up two heat dissipation grooves 2 and be the symmetry setting about guard plate assembly 1, can dispel the heat to group battery 6 from both sides, improved radiating efficiency.

Wherein, telescopic link 13 and erection column 11 sliding fit set up telescopic link 13 and erection column 11 sliding fit, conveniently fix group battery 6.

The telescopic rod 13 is in press fit with the fixed spring 12, and the fixed spring 12 can provide elastic force for the telescopic rod 13 to fix the battery pack 6.

As shown in fig. 1 to 5, the method for using the lithium battery explosion-proof protection plate of the utility model comprises the following steps: when the battery pack protection device is used, the box cover 3 is firstly opened, the battery pack 6 is placed on the placement plate 9, the fixing spring 12 provides an elastic force for the fixing plate 14, the battery pack 6 can be fixed from two sides, meanwhile, the battery pack can be buffered and protected from two sides through the fixing spring, the box cover 3 is closed, the sealing rubber strip is used for sealing, the moisture-proof effect can be achieved, the heat dissipation fan 8 dissipates heat inside the protection plate assembly, the temperature of the battery pack 6 is reduced, the fireproof and explosion-proof effects are achieved, after the battery pack is collided, the protection spring 21 is extruded by the second connecting plate 18, the damping shock absorber 22 is extruded by the placement plate 9, the damping shock absorber 22 is matched with the protection spring 21 to achieve the shock absorption and buffering effects, and the battery pack 6 can be protected.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are intended only to assist in the explanation of the utility model. The preferred embodiments are not exhaustive or to limit the utility model to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model. The utility model is limited only by the claims and the full scope and equivalents thereof.

Claims

1. The utility model provides an explosion-proof protection shield of lithium cell, includes guard plate subassembly (1) and group battery (6), its characterized in that: the two side surfaces of the protection plate component (1) are fixedly connected with radiating grooves (2), an installation screen plate (7) is fixedly installed in the radiating grooves (2), a surface of the installation screen plate (7) is fixedly provided with a radiating fan (8), one surface of the radiating grooves (2) is provided with a plurality of installing grooves (4), a dustproof net (5) is connected in the installing grooves (4) in a sliding mode, the upper surface of guard plate subassembly (1) articulates there is lid (3), the laminating of pasting of week side of lid (3) has a plurality of joint strips, the internally mounted of guard plate subassembly (1) has places board (9), the both sides face of placing board (9) all fixedly connected with slider (16), another surface of installation otter board (7) is provided with spout (15).

2. The lithium battery explosion-proof protection plate according to claim 1, wherein the upper surface of the placing plate (9) is fixedly provided with two vertical plates (10), the opposite surfaces of the two vertical plates (10) are fixedly provided with mounting posts (11), the inner fixedly connected with fixing springs (12) of the mounting posts (11), one end of each fixing spring (12) is fixedly connected with a telescopic rod (13), and one end of each telescopic rod (13) is fixedly connected with a fixing plate (14).

3. The lithium battery explosion-proof protection board according to claim 1, characterized in that a first connecting plate (17) and a plurality of damping shock absorbers (22) are fixedly installed on the bottom surface of the inner wall of the protection board assembly (1), a protection spring (21) is connected to the upper surface of the first connecting plate (17) and a first connecting rod (19) is hinged to the upper surface of the first connecting plate, a second connecting rod (20) is hinged to the upper end of the first connecting rod (19), a second connecting plate (18) is hinged to the upper end of the second connecting rod (20), and the second connecting plate (18) and the damping shock absorbers (22) are fixedly connected with the placing plate (9), and the upper end of the protection spring (21) is fixedly connected with the second connecting plate (18).

4. The lithium battery explosion-proof protection board according to claim 1, wherein the sliding block (16) is installed in the sliding groove (15), and the sliding block (16) is in sliding fit with the sliding groove (15).

5. A lithium battery explosion protection board according to claim 1, characterized in that two of the heat dissipation grooves (2) are symmetrically arranged with respect to the protection board assembly (1).

6. A lithium battery explosion protection plate according to claim 2, characterized in that the telescopic rod (13) is in sliding fit with the mounting column (11).

7. The lithium battery explosion-proof protection board according to claim 2, wherein the telescopic rod (13) is in extrusion fit with the fixed spring (12).