CN215933750U

CN215933750U - Protective structure of lithium battery pack

Info

Publication number: CN215933750U
Application number: CN202122418041.0U
Authority: CN
Inventors: 俞飞
Original assignee: Nanjing Yutian New Energy Technology Co ltd
Current assignee: Nanjing Yutian New Energy Technology Co ltd
Priority date: 2021-10-08
Filing date: 2021-10-08
Publication date: 2022-03-01
Anticipated expiration: 2031-10-08

Abstract

The utility model discloses a protection structure of a lithium battery pack, and relates to the technical field of lithium battery packs. According to the utility model, the protection assembly is added, so that the lithium battery pack can be protected, the problem that the lithium battery pack is damaged due to collision is avoided, and the service life of the lithium battery pack is prolonged.

Description

Protective structure of lithium battery pack

Technical Field

The utility model relates to the technical field of lithium battery packs, in particular to a protective structure of a lithium battery pack.

Background

Lithium batteries are a type of battery using a nonaqueous electrolyte solution and using lithium metal or a lithium alloy as a negative electrode material, and can be roughly classified into two types: lithium metal batteries and lithium ion batteries. The lithium ion battery does not contain metallic lithium and can be charged, the safety, specific capacity, self-discharge rate and cost performance of the lithium metal battery are all superior to those of the lithium ion battery, and the lithium battery becomes the mainstream at present along with the development of scientific technology.

However, most of the existing lithium battery packs are placed inside the box, but the box is not provided with a protection function, so that when the box is collided, the lithium battery packs are easily damaged, and the service life of the lithium battery packs is shortened.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem of the prior art, and provides a protection structure of a lithium battery pack.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a protection structure of a lithium battery pack comprises a mounting box, the lithium battery pack arranged in the mounting box and a cover rotatably arranged at the top of the mounting box, wherein a protection assembly is arranged at the bottom in the mounting box;

the protection component is including setting up the second mounting panel of bottom in the mounting box, the top left and right sides of second mounting panel is provided with the installation piece, the spout has been seted up at the top of installation piece, be provided with the slide bar in the spout, the slip is provided with the slider on the slide bar, two the top of slider is connected with the left and right sides of arc respectively, the middle part top of arc is provided with first mounting panel, the top of first mounting panel contacts with the bottom of lithium cell group, the left and right sides of slider is connected with spout inner wall through second reset spring and third reset spring respectively, the arc is the plasticity material.

Further, the middle bottom end of the arc-shaped plate is connected with the top end of the middle of the second mounting plate through a spring telescopic rod.

Further, the second mounting panel passes through the connecting plate with first mounting panel and is connected, set up a plurality of and atress direction vertically loose hole in the connecting plate, the material of connecting plate is rubber.

Further, rubber plates are arranged on the four walls in the mounting box.

Furthermore, the bottom of the cover is slidably provided with a supporting plate which is in contact with the top of the lithium battery pack, the top of the supporting plate is provided with a guide plate, and the top of the guide plate is connected with the bottom of the cover through a plurality of first return springs.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, the protection assembly is added, so that the lithium battery pack can be protected, the problem that the lithium battery pack is damaged due to collision is avoided, and the service life of the lithium battery pack is prolonged.

Drawings

Fig. 1 is an external view of a protection structure of a lithium battery pack according to the present invention;

fig. 2 is a schematic side-view diagram of a protection structure of a lithium battery pack according to the present invention;

fig. 3 is a schematic structural diagram of a protection assembly in a protection structure of a lithium battery pack according to the present invention.

In the figure: 1. mounting a box; 2. a cover; 3. a guard assembly; 4. a lithium battery pack; 11. a rubber plate; 21. a guide plate; 22. a resisting plate; 23. a first return spring; 31. a first mounting plate; 32. a second mounting plate; 33. a connecting plate; 34. an arc-shaped plate; 35. mounting blocks; 36. a spring telescopic rod; 37. a slider; 38. a second return spring; 39. and a third return spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-3, a protection structure of a lithium battery pack comprises a mounting box 1, a lithium battery pack 4 arranged in the mounting box 1 and a cover 2 rotatably arranged at the top of the mounting box 1, wherein a protection assembly 3 is arranged at the bottom in the mounting box 1;

protection component 3 is including setting up the second mounting panel 32 of bottom in mounting box 1, the top left and right sides of second mounting panel 32 is provided with installation piece 35, the spout has been seted up at the top of installation piece 35, be provided with the slide bar in the spout, it is provided with slider 37 to slide on the slide bar, the top of two slider 37 is connected with the left and right sides of arc 34 respectively, the middle part top of arc 34 is provided with first mounting panel 31, the top of first mounting panel 31 contacts with the bottom of lithium cell group 4, slider 37's the left and right sides is connected with spout inner wall through second reset spring 38 and third reset spring 39 respectively, arc 34 is the plasticity material.

Further, the middle bottom end of the arc plate 34 is connected with the middle top end of the second mounting plate 32 through a spring expansion link 36.

Further, second mounting panel 32 passes through connecting plate 33 with first mounting panel 31 and is connected, has seted up a plurality of loose holes perpendicular with the atress direction in the connecting plate 33, and the material of connecting plate 33 is rubber.

Further, rubber plates 11 are arranged on four walls in the mounting box 1.

Further, the bottom of the cover 2 is slidably provided with a supporting plate 22 contacting with the top of the lithium battery pack 4, the top of the supporting plate 22 is provided with a guide plate 21, and the top of the guide plate 21 is connected with the bottom of the cover 2 through a plurality of first return springs 23.

The working principle is as follows: when the mounting box 1 is collided, the lithium battery pack 4 shakes, the lithium battery pack 4 extrudes the first mounting plate 31 downwards, the first mounting plate 31 extrudes the arc-shaped plate 34 downwards, the arc-shaped plate 34 deforms, the sliding block 37 is pushed towards two sides, the sliding block 37 extrudes the second return spring 38 to perform first-step energy absorption, the sliding block 37 extrudes the second return spring 38 and simultaneously pulls the third return spring 39 to perform second-step energy absorption, the arc-shaped plate 34 continuously descends and simultaneously extrudes the spring telescopic rod 36 to perform third-step energy absorption, the first mounting plate 31 extrudes the connecting plate 33 downwards to reduce the diameter of a loose hole in the connecting plate 33, the fourth-step energy absorption is performed, when the lithium battery pack 4 upwards, the abutting plate 22 is pushed, the abutting plate 22 pushes the guide plate 21, the guide plate 21 extrudes the first return springs 23, the fifth-step energy absorption is performed, and when the lithium battery pack moves towards two sides, the rubber plate 11 can be extruded to deform the rubber plate 11, and energy absorption in the sixth step is carried out, so that the lithium battery pack 4 can be well protected.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A protection structure of a lithium battery pack comprises a mounting box (1), the lithium battery pack (4) arranged in the mounting box (1) and a cover (2) rotatably arranged at the top of the mounting box (1), and is characterized in that a protection assembly (3) is arranged at the bottom in the mounting box (1);

protection component (3) are including setting up second mounting panel (32) of bottom in mounting box (1), the top left and right sides of second mounting panel (32) is provided with installation piece (35), the spout has been seted up at the top of installation piece (35), be provided with the slide bar in the spout, it is provided with slider (37), two to slide on the slide bar the top of slider (37) is connected with the left and right sides of arc (34) respectively, the middle part top of arc (34) is provided with first mounting panel (31), the top of first mounting panel (31) and the bottom contact of lithium cell group (4), both sides are connected with the spout inner wall through second reset spring (38) and third reset spring (39) respectively about slider (37), arc (34) are the plasticity material.

2. The lithium battery pack protection structure according to claim 1, wherein the middle bottom end of the arc-shaped plate (34) is connected with the middle top end of the second mounting plate (32) through a telescopic spring rod (36).

3. The protection structure of a lithium battery pack according to claim 1, wherein the second mounting plate (32) is connected with the first mounting plate (31) through a connecting plate (33), a plurality of loosening holes perpendicular to a force-bearing direction are formed in the connecting plate (33), and the connecting plate (33) is made of rubber.

4. A lithium battery pack protection structure according to claim 1, wherein the four walls in the mounting box (1) are provided with rubber plates (11).

5. The lithium battery pack protection structure according to claim 1, wherein the bottom of the cover (2) is slidably provided with a supporting plate (22) contacting with the top of the lithium battery pack (4), the top of the supporting plate (22) is provided with a guiding plate (21), and the top of the guiding plate (21) is connected with the bottom of the cover (2) through a plurality of first return springs (23).