CN219067076U

CN219067076U - Explosion-proof lithium battery protection board structure

Info

Publication number: CN219067076U
Application number: CN202223405089.9U
Authority: CN
Inventors: 毛光磊; 罗斌; 李佳聪; 罗军
Original assignee: Shenzhen Hongshengtai Technology Co ltd
Current assignee: Shenzhen Hongshengtai Technology Co ltd
Priority date: 2022-12-19
Filing date: 2022-12-19
Publication date: 2023-05-23
Anticipated expiration: 2032-12-19

Abstract

The utility model discloses a protection plate structure of a lithium battery, which comprises the following components: the inner end of the supporting rod is provided with an installation liner, the upper side of the installation liner is provided with a sealing cover, and the upper side of the sealing cover is provided with a buffer mechanism for buffering; the positioning mechanism is arranged on the inner side of the sealing cover, the lower side of the positioning mechanism is provided with a guide block fixed in the mounting shell, and the buffer mechanism comprises a mounting base, a mounting plate, a damper, a limiting plate and a limiting ring; the mounting base is fixed on the upper side of the sealing cover through welding, a mounting plate is mounted on the inner side of the mounting base, a damper is mounted at the lower end of the mounting plate, and a limiting plate is mounted at the lower end of the damper. This explosion-proof lithium battery protection shield structure can cushion the explosion that the lithium battery probably appears, also can prevent that the explosion from causing excessive damage to the protection shield simultaneously.

Description

Explosion-proof lithium battery protection board structure

Technical Field

The utility model relates to the technical field related to lithium batteries, in particular to a protection plate structure of a lithium battery, which is explosion-proof.

Background

Lithium batteries refer to batteries that contain lithium (including metallic lithium, lithium alloys, and lithium ions, lithium polymers) in an electrochemical system, and can be broadly divided into two categories: lithium metal batteries and lithium ion batteries, the lithium metal batteries are generally non-rechargeable and contain lithium in a metallic state, the lithium ion batteries do not contain lithium in a metallic state and are rechargeable, and the lithium batteries need to be protected by a protection plate when in use;

the utility model provides a lithium cell FPC protection shield of chinese patent grant publication No. CN211238439U, includes the protection shield, FPC protection shield when the protection shield was used, the protection shield inside is provided with the cavity, the cavity is cut apart into many packing chambeies, the packing intracavity portion is filled with phase change material, phase change material uses polyurea microcapsule phase change material. The phase change material in the material cavity can absorb heat radiated by the lithium battery when the temperature of the lithium battery is high, cool the lithium battery, and can emit heat when the temperature of the lithium battery is low, so that the temperature of the lithium battery is maintained and the normal working temperature of the lithium battery is maintained;

most prior art solutions still suffer from the following drawbacks: the explosion phenomenon possibly occurring in the lithium battery is inconvenient to prevent, the protection board is possibly damaged due to explosion impact, and the impact force generated by explosion is inconvenient to buffer to a certain extent, so the utility model provides an explosion-proof lithium battery protection board structure, and the problems are solved.

Disclosure of Invention

The utility model aims to provide a explosion-proof lithium battery protection board structure, which solves the problems that the explosion phenomenon possibly occurring in a lithium battery is inconvenient to prevent and the impact force generated by explosion is inconvenient to buffer to a certain extent in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a lithium battery protection plate structure for protection against explosion, comprising:

the inner end of the supporting rod is provided with an installation liner, the upper side of the installation liner is provided with a sealing cover, and the upper side of the sealing cover is provided with a buffer mechanism for buffering;

and the positioning mechanism is arranged on the inner side of the sealing cover, and the lower side of the positioning mechanism is provided with a guide block fixed in the mounting shell.

Preferably, the buffer mechanism comprises a mounting base, a mounting plate, a damper, a limiting plate and a limiting ring;

the mounting base is fixed on the upper side of the sealing cover through welding, the mounting plate is mounted on the inner side of the mounting base, the damper is mounted at the lower end of the mounting plate, the limiting plate is mounted at the lower end of the damper, and the limiting ring is arranged on the lower side of the limiting plate.

Preferably, the positioning mechanism comprises a mounting block, an adjusting rod, a limiting column, a positioning block and a limiting block;

the installation piece, its upside installs the regulation pole, and the lower extreme of installation piece is fixed with spacing post, and the outside of spacing post is provided with the locating piece, and the outside of locating piece is fixed with the stopper.

Preferably, the mounting plate is elastically connected with the mounting base through a spring, and the dampers are arranged at equal intervals on the lower side of the mounting plate.

Preferably, the mounting block is in threaded connection with the adjusting rod, and the adjusting rod is in rotary connection with the sealing cover.

Preferably, the cross section of the installation block is rectangular, the installation block is in sliding connection with the sealing cover, and the installation block is in clamping connection with the installation shell.

Preferably, the positioning block is rotationally connected with the limiting column, the positioning block is symmetrically arranged left and right relative to the center of the mounting block, and the inner side of the lower end of the positioning block is obliquely arranged.

Preferably, the longitudinal section of the guide block is trapezoidal.

Preferably, the support rods are uniformly arranged on the inner side of the installation shell, the support rods are obliquely arranged in the installation shell, and the single bodies of the support rods are reinforced through obliquely arranged reinforcing frames.

Compared with the prior art, the utility model has the beneficial effects that: the explosion-proof lithium battery protection board structure can buffer explosion possibly occurring in a lithium battery, and can prevent the explosion from damaging the protection board excessively;

1. the support rods are uniformly arranged on the inner side of the installation shell, the support rods are obliquely arranged in the installation shell, and the single bodies of the support rods are reinforced through the obliquely arranged reinforcing frames, so that the outer side of the installation liner is provided with a good reinforcing structure, and excessive damage to the protection plate caused by explosion can be prevented;

2. the mounting plate and the mounting base form elastic connection by utilizing the spring, the damper is arranged at the lower side of the mounting plate at equal intervals, and the limiting ring is elastically connected with the limiting plate, so that when the lithium battery mounted in the mounting liner explodes, the impact force can be relieved through various buffering;

3. the installation block is in threaded connection with the adjusting rod, the positioning block is in rotary connection with the limiting column, the positioning block is arranged in bilateral symmetry with respect to the center of the installation block, and the inner side of the lower end of the positioning block is in inclined arrangement, so that the limiting block can hook the inner side of the installation shell, and the connection stability between the sealing cover and the installation shell is improved.

Drawings

FIG. 1 is a schematic diagram of a front cross-sectional structure of the present utility model;

FIG. 2 is a schematic diagram of a side view of a connection between a positioning block and a limiting post according to the present utility model;

FIG. 3 is a schematic top view of the connection between the mounting block and the mounting housing of the present utility model;

fig. 4 is an enlarged schematic view of the structure of fig. 1 a according to the present utility model.

In the figure: 1. mounting a shell; 2. a support rod; 3. a reinforcing frame; 4. installing an inner container; 5. a cover; 6. a buffer mechanism; 601. a mounting base; 602. a mounting plate; 603. a damper; 604. a limiting plate; 605. a limiting ring; 7. a positioning mechanism; 701. a mounting block; 702. an adjusting rod; 703. a limit column; 704. a positioning block; 705. a limiting block; 8. and a guide block.

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.

Referring to fig. 1-4, the present utility model provides a technical solution: the utility model provides a protection plate structure of lithium battery that protection against explosion, including installing shell 1 installs bracing piece 2 in the inboard, and the inside of bracing piece 2 is fixed with reinforcing frame 3, the inner of bracing piece 2 is installed and is installed inner bag 4, and the upside of installing inner bag 4 is provided with closing cap 5, the upper side of closing cap 5 is installed and is used for buffering mechanism 6, buffering mechanism 6 includes mounting base 601, mounting plate 602, attenuator 603, limiting plate 604 and spacing ring 605, mounting base 601 is fixed in the upside of closing cap 5 through the welding, and mounting plate 602 is installed to the inboard of mounting base 601, the attenuator 603 is installed to the lower extreme of mounting plate 602, and the lower extreme of attenuator 603 is installed limiting plate 604, and the downside of limiting plate 604 is provided with spacing ring 605, positioning mechanism 7 is installed in the inboard of closing cap 5, and the downside of positioning mechanism 7 is provided with guide block 8 that is fixed in mounting shell 1, positioning mechanism 7 includes mounting block 701, adjusting rod 702,

spacing post

703, 704 and stopper 705, the upside of mounting block is installed and the lower extreme of mounting block is fixed with spacing post 703, the outside of spacing post 704 is fixed with the stopper 704, and the outside of spacing post 704 is fixed with the stopper 705;

when the device is used, particularly as shown in fig. 1, the supporting rods 2 are uniformly arranged on the inner side of the installation shell 1, the supporting rods 2 are obliquely arranged in the installation shell 1, and the single bodies of the supporting rods 2 are reinforced through the obliquely arranged reinforcing frames 3, so that the outer side of the installation liner 4 is provided with a good reinforcing structure, excessive damage to a protection plate caused by explosion can be prevented, after a lithium battery is placed in the installation liner 4, particularly as shown in fig. 2, 3 and 4, the sealing cover 5 and the installation shell 1 are bolted, then the adjusting rod 702 is rotated, the installation block 701 and the adjusting rod 702 are in threaded connection, the cross section of the installation block 701 and the sealing cover 5 is in sliding connection, the installation block 701 moves downwards, the installation block 704 and the limiting column 703 are in rotary connection, the positioning block 704 is in bilateral symmetry about the center of the installation block 701, the inner side of the lower end of the positioning block 704 is in oblique arrangement, the longitudinal section of the guiding block 8 is in a trapezoid shape, the lower end of the positioning block 704 is unfolded, and the positioning block 704 is limited by the guiding block 8, so that the inner side 705 is in conflict with the outer side of the installation shell 1, the installation stability between the installation block 1 and the installation shell 1 is increased;

specifically, as shown in fig. 1, the mounting plate 602 and the mounting base 601 form elastic connection by using a spring, the damper 603 is arranged at equal intervals on the lower side of the mounting plate 602, and the limiting ring 605 is elastically connected with the limiting plate 604, so that when the lithium battery mounted in the mounting liner 4 explodes, the impact force can be buffered and slowed down through various buffering.

Standard parts used in the utility model can be purchased from the market, special-shaped parts can be customized according to the description of the specification and the drawings, the specific connection modes of all parts adopt conventional means such as mature bolts, rivets and welding in the prior art, the machinery, the parts and the equipment adopt conventional modes in the prior art, and the circuit connection adopts conventional connection modes in the prior art, so that details are not described in detail in the specification, and the utility model belongs to the prior art known to the person skilled in the art.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. A lithium battery protection plate structure of protection against explosion, characterized by comprising:

the inner end of the supporting rod (2) is provided with an installation liner (4), the upper side of the installation liner (4) is provided with a sealing cover (5), and the upper side of the sealing cover (5) is provided with a buffer mechanism (6) for buffering;

and a positioning mechanism (7) which is installed on the inner side of the sealing cover (5), wherein a guide block (8) fixed in the installation shell (1) is arranged on the lower side of the positioning mechanism (7).

2. The explosion-proof lithium battery protection plate structure according to claim 1, wherein: the buffer mechanism (6) comprises a mounting base (601), a mounting plate (602), a damper (603), a limiting plate (604) and a limiting ring (605);

the mounting base (601) is fixed on the upper side of the sealing cover (5) through welding, the mounting plate (602) is mounted on the inner side of the mounting base (601), the damper (603) is mounted at the lower end of the mounting plate (602), the limiting plate (604) is mounted at the lower end of the damper (603), and the limiting ring (605) is arranged on the lower side of the limiting plate (604).

3. The explosion-proof lithium battery protection plate structure according to claim 1, wherein: the positioning mechanism (7) comprises a mounting block (701), an adjusting rod (702), a limiting column (703), a positioning block (704) and a limiting block (705);

the mounting block (701) is provided with an adjusting rod (702) on the upper side, a limiting column (703) is fixed at the lower end of the mounting block (701), a positioning block (704) is arranged on the outer side of the limiting column (703), and a limiting block (705) is fixed on the outer side of the positioning block (704).

4. The explosion-proof lithium battery protection plate structure according to claim 2, wherein: the mounting plate (602) is elastically connected with the mounting base (601) through a spring, and the dampers (603) are arranged at equal intervals on the lower side of the mounting plate (602).

5. A lithium battery protection plate structure for protection against explosion according to claim 3, wherein: the mounting block (701) is in threaded connection with the adjusting rod (702), and the adjusting rod (702) is in rotary connection with the sealing cover (5).

6. The explosion-proof lithium battery protection plate structure according to claim 5, wherein: the cross section of the mounting block (701) is rectangular, the mounting block (701) is in sliding connection with the sealing cover (5), and the mounting block (701) is in clamping connection with the mounting shell (1).

7. A lithium battery protection plate structure for protection against explosion according to claim 3, wherein: the positioning block (704) is rotationally connected with the limiting column (703), the positioning block (704) is symmetrically arranged left and right relative to the center of the mounting block (701), and the inner side of the lower end of the positioning block (704) is obliquely arranged.

8. The explosion-proof lithium battery protection plate structure according to claim 1, wherein: the longitudinal section of the guide block (8) is trapezoid.

9. The explosion-proof lithium battery protection plate structure according to claim 1, wherein: the support rods (2) are uniformly arranged on the inner side of the installation shell (1), the support rods (2) are obliquely arranged in the installation shell (1), and the single bodies of the support rods (2) are reinforced through the obliquely arranged reinforcing frames (3).