CN217239625U

CN217239625U - Lithium battery protection device

Info

Publication number: CN217239625U
Application number: CN202122320020.5U
Authority: CN
Inventors: 王媛; 熊朝辉
Original assignee: Jiangsu Fushitong New Energy Co ltd
Current assignee: Jiangsu Jingchuang Lithium New Energy Technology Co ltd
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-08-19
Anticipated expiration: 2031-09-24

Abstract

The utility model belongs to the technical field of the lithium cell, especially, be a lithium cell protector, including protective housing, battery mechanism and protection machanism, protective housing's inside block is equipped with battery mechanism, battery mechanism and protective housing contactless, battery mechanism's both sides are equipped with protection machanism, protection machanism and battery mechanism's both ends bolted connection, protection machanism symmetric distribution is in battery mechanism's both sides, protection machanism is located inside the protective housing. The utility model discloses a be provided with go-between, vertical shock absorber pole and horizontal shock absorber pole for the battery can be releived the impact all around through a spring in the vertical shock absorber pole and No. two springs in the horizontal shock absorber pole when receiving the collision, reduces the influence that the battery received, and because the tie point of protection machanism and battery is less, makes protection machanism can undertake more impacts, and the protecting effect is relatively good.

Description

Lithium battery protection device

Technical Field

The utility model belongs to the technical field of the lithium cell technique and specifically relates to a lithium cell protector is related to.

Background

A lithium battery is a type of battery using a nonaqueous electrolyte solution, using lithium metal or a lithium alloy as a positive/negative electrode material. Because the chemical characteristics of lithium metal are very active, the lithium metal has very high requirements on the environment in processing, storage and use. With the development of scientific technology, lithium batteries have become the mainstream. Lithium batteries can be broadly classified into two types: lithium metal batteries and lithium ion batteries. Lithium ion batteries do not contain lithium in the metallic state and are rechargeable.

In order to prevent the lithium battery from being damaged by direct collision, a protection device is usually arranged on the outer side of the lithium battery, and a common lithium battery protection device is usually fixed on a shell of the battery by adopting a plurality of screws, so that a plurality of screws are required to be screwed during installation and disassembly, and the assembly and disassembly are troublesome; in addition, the common lithium battery protection device is fixed on a shell of the lithium battery and is close to the battery, so that only part of collision force can be reduced during collision, and a large amount of collision force is applied to the battery, so that the protection effect is limited.

SUMMERY OF THE UTILITY MODEL

For solving the above-mentioned problem that exists among the prior art, the utility model provides a lithium battery protection device has easy to assemble dismantlement and the good characteristics of protecting effect.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a lithium battery protection device, includes protective housing, battery mechanism and protection machanism, protective housing's inside block is equipped with battery mechanism, battery mechanism and protective housing contactless, battery mechanism's both sides are equipped with protection machanism, protection machanism and battery mechanism's both ends bolted connection, protection machanism symmetric distribution is in battery mechanism's both sides, protection machanism is located inside protective housing.

As the utility model discloses a preferred technical scheme of lithium cell protector, protective housing includes casing, lower draw-in groove, goes up casing and last draw-in groove down, the draw-in groove has been seted up down to the inside bottom surface of casing down, protection machanism's lower extreme block is in draw-in groove down, the casing is fixed to be equipped with directly over the casing down, the draw-in groove has been seted up to the bottom surface of going up the casing, protection machanism's upper end block is in last draw-in groove.

As the utility model discloses a preferred technical scheme of lithium cell protector, battery mechanism includes battery and fixation nut, the fixed fixation nut that is equipped with on the both sides lateral wall of battery, protection mechanism's both ends and fixation nut bolted connection.

As the utility model discloses a preferred technical scheme of lithium cell protector, protection machanism includes go-between, bolt, vertical shock absorber pole and horizontal shock absorber pole, the go-between is located the both sides of battery, the inboard of go-between is equipped with the bolt, the one end block of bolt is in the link, the other end of bolt runs through the go-between, the other end block of bolt is inboard at fixation nut, the bolt is connected for the bolt with fixation nut's relation of being connected, the fixed vertical shock absorber pole that is equipped with on the outer wall of go-between, the one end of vertical shock absorber pole is fixed on the outer wall of go-between, the fixed horizontal shock absorber pole that is equipped with of other end department of vertical shock absorber pole, horizontal shock absorber pole is located the outside of battery.

As the utility model discloses a preferred technical scheme of lithium cell protector, vertical shock absorber pole includes a telescopic link, a spring and connecting block, a telescopic link is fixed on the outer wall of go-between, the fixed connecting block that is equipped with in top of a telescopic link, the inboard of a telescopic link is equipped with a spring, the one end of a spring is fixed on the outer wall of go-between, the other end of a spring is fixed on the lateral wall of connecting block, horizontal shock absorber pole is fixed on one side lateral wall of connecting block.

As the utility model discloses a preferred technical scheme of lithium cell protector, horizontal shock attenuation pole includes No. two telescopic links, No. two springs and magnetic path, No. two telescopic links are fixed on the lateral wall of connecting block, the fixed magnetic path that is equipped with in top of No. two telescopic links, the inboard of No. two telescopic links is equipped with No. two springs, the one end of No. two springs is fixed on the lateral wall of connecting block, the other end of No. two springs is fixed on the lateral wall of magnetic path, the protection machanism of battery both sides passes through magnetic path interconnect.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses at the in-process that uses, through being provided with fixation nut and protection machanism, when installing protection machanism, only need with the protection machanism block in the outside of battery, pass the go-between with the bolt one end on the protection machanism afterwards and be connected with fixation nut can, when needs are dismantled, also only need twist off the bolt of both sides and can take off protection machanism, relatively easy to assemble and dismantlement when guaranteeing to connect firmly.

2. The utility model discloses in the in-process that uses, through being provided with the go-between, vertical shock attenuation pole and horizontal shock attenuation pole, vertical shock attenuation pole is fixed in the outside of go-between, the top at vertical shock attenuation pole is fixed to horizontal shock attenuation pole, connect through the magnetic path again between the horizontal shock attenuation pole, make the battery when receiving the collision, can relax collision power all around through a spring in the vertical shock attenuation pole and No. two springs in the horizontal shock attenuation pole, reduce the influence that the battery received, and because the tie point of protection machanism and battery is less, make protection machanism can undertake more impact, the protecting effect is relatively good.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic cross-sectional view taken along the line A-A in FIG. 1;

FIG. 3 is a schematic cross-sectional view taken along the line B-B in FIG. 1;

fig. 4 is a schematic structural diagram of the battery mechanism of the present invention;

fig. 5 is a schematic structural diagram of the protection mechanism of the present invention.

In the figure: 1. a protective housing; 11. a lower housing; 12. a lower clamping groove; 13. an upper housing; 14. an upper clamping groove; 2. a battery mechanism; 21. a battery; 22. fixing a nut; 3. a protection mechanism; 31. a connecting ring; 32. a bolt; 33. a vertical shock absorbing rod; 331. a first telescopic rod; 332. a first spring; 333. connecting blocks; 34. a transverse shock absorbing rod; 341. a second telescopic rod; 342. a second spring; 343. a magnetic block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Examples

Referring to fig. 1-5, the utility model provides the following technical scheme: the utility model provides a lithium battery protection device, includes protecting sheathing 1, battery mechanism 2 and protection machanism 3, and the inside block of protecting sheathing 1 is equipped with battery mechanism 2, and battery mechanism 2 and protecting sheathing 1 contactless, the both sides of battery mechanism 2 are equipped with protection machanism 3, and protection machanism 3 and battery mechanism 2's both ends bolted connection, and 3 symmetric distribution of protection machanism are in the both sides of battery mechanism 2, and protection machanism 3 is located inside protecting sheathing 1.

Referring to fig. 2, 3 and 4, specifically, the protective housing 1 includes a lower shell 11, a lower clamping groove 12, an upper shell 13 and an upper clamping groove 14, the lower clamping groove 12 is disposed on the bottom surface of the interior of the lower shell 11, the lower end of the protective mechanism 3 is clamped in the lower clamping groove 12, the upper shell 13 is fixedly disposed right above the lower shell 11, the upper clamping groove 14 is disposed on the bottom surface of the upper shell 13, and the upper end of the protective mechanism 3 is clamped in the upper clamping groove 14; battery mechanism 2 includes battery 21 and fixation nut 22, fixes being equipped with fixation nut 22 on the both sides lateral wall of battery 21, and the both ends and the fixation nut 22 bolted connection of protection machanism 3 through being equipped with draw-in groove 12 and last draw-in groove 14 down, can be with 3 blocks of protection machanism in protecting sheathing 1, and battery mechanism 2 rocks the range too big with protection machanism 3 when avoiding colliding.

Referring to fig. 2, 3 and 5, specifically, the protection mechanism 3 includes a connection ring 31, a bolt 32, a vertical damping rod 33 and a horizontal damping rod 34, the connection ring 31 is located on both sides of the battery 21, the bolt 32 is disposed on the inner side of the connection ring 31, one end of the bolt 32 is clamped in the connection ring 31, the other end of the bolt 32 penetrates through the connection ring 31, the other end of the bolt 32 is clamped on the inner side of the fixing nut 22, the connection relationship between the bolt 32 and the fixing nut 22 is bolt connection, the vertical damping rod 33 is fixedly disposed on the outer wall of the connection ring 31, one end of the vertical damping rod 33 is fixed on the outer wall of the connection ring 31, the horizontal damping rod 34 is fixedly disposed at the other end of the vertical damping rod 33, and the horizontal damping rod 34 is located on the outer side of the battery 21; the vertical shock absorption rod 33 comprises a first expansion rod 331, a first spring 332 and a connecting block 333, the first expansion rod 331 is fixed on the outer wall of the connecting ring 31, the connecting block 333 is fixedly arranged at the top end of the first expansion rod 331, the first spring 332 is arranged on the inner side of the first expansion rod 331, one end of the first spring 332 is fixed on the outer wall of the connecting ring 31, the other end of the first spring 332 is fixed on the side wall of the connecting block 333, and the transverse shock absorption rod 34 is fixed on the side wall of one side of the connecting block 333; horizontal shock absorber pole 34 includes No. two telescopic link 341, No. two springs 342 and magnetic block 343, No. two telescopic link 341 are fixed on the lateral wall of connecting block 333, the fixed magnetic block 343 that is equipped with in top of No. two telescopic link 341, the inboard of No. two telescopic link 341 is equipped with No. two springs 342, the one end of No. two springs 342 is fixed on the lateral wall of connecting block 333, the other end of No. two springs 342 is fixed on the lateral wall of magnetic block 343, the protection machanism 3 of battery 21 both sides passes through magnetic block 343 interconnect, battery 21 is when receiving the collision, can relax to collision power all around through a spring 332 in the vertical shock absorber pole 33 and No. two springs 342 in the horizontal shock absorber pole 34, reduce the influence that battery 21 received, and because protection machanism 3 and battery 21's tie point is less, make protection machanism 3 can undertake more impact, the protective effect is better.

The utility model discloses an use flow and theory of operation: the utility model discloses when using, at first, place protection machanism 3 in the both sides of battery mechanism 2, later with the outside of protection machanism 3 block at battery mechanism 2, connect two magnetic paths 343 on the protection machanism 3, later with the bolt 32 on the protection machanism 3 run through go-between 31, with the lower extreme and the fixed nut 22 bolted connection of bolt 32, with the top block of bolt 32 in go-between 31, thereby fix protection machanism 3 in the both sides of battery mechanism 2, later put into down casing 11 with battery mechanism 2 and protection machanism 3 in, in lower extreme block 12 with protection machanism 3, later with the last casing 13 of protecting sheathing 1 fixed under on casing 11, thereby with protection machanism 3's upper end block in last draw-in groove 14, thereby accomplish protector's installation.

When collision happens, the protective housing 1 firstly receives impact force, can prevent that the shaking amplitude of the protective mechanism 3 and the battery mechanism 2 is too large through the lower clamping groove 12 and the upper clamping groove 14, then the impact force is transmitted to the protective mechanism 3, the impact in the vertical direction can be reduced through the first telescopic rod 331 and the first spring 332 in the vertical shock absorption rod 33, the impact in the horizontal direction can be reduced through the second telescopic rod 341 and the second spring 342 in the transverse shock absorption rod 34, because the contact surface of the protective mechanism 3 and the battery mechanism 2 is less, the protective mechanism 3 can bear most of the impact from the outside, thereby the impact received by the battery mechanism 2 is greatly reduced, and the protective performance is improved.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model should be covered within the protection scope of the utility model.

Claims

1. The utility model provides a lithium battery protection device, includes protective housing (1), battery mechanism (2) and protection machanism (3), its characterized in that: the inside block of protecting sheathing (1) is equipped with battery mechanism (2), battery mechanism (2) and protecting sheathing (1) contactless, the both sides of battery mechanism (2) are equipped with protecting mechanism (3), the both ends bolted connection of protecting mechanism (3) and battery mechanism (2), protecting mechanism (3) symmetric distribution is in the both sides of battery mechanism (2), protecting mechanism (3) are located inside protecting sheathing (1).

2. A lithium battery protection device according to claim 1, characterized in that: protective housing (1) includes casing (11), lower draw-in groove (12), goes up casing (13) and last draw-in groove (14) down, draw-in groove (12) down have been seted up to the inside bottom surface of casing (11) down, the lower extreme block of protection machanism (3) is in draw-in groove (12) down, casing (13) are fixed being equipped with directly over casing (11) down, last draw-in groove (14) have been seted up to the bottom surface of going up casing (13), the upper end block of protection machanism (3) is in last draw-in groove (14).

3. A lithium battery protection device according to claim 1, characterized in that: the battery mechanism (2) comprises a battery (21) and fixing nuts (22), the fixing nuts (22) are fixedly arranged on the side walls of the two sides of the battery (21), and the two ends of the protection mechanism (3) are connected with the fixing nuts (22) through bolts.

4. The lithium battery protection device of claim 1, wherein: the protection mechanism (3) comprises a connecting ring (31), a bolt (32), a vertical shock absorption rod (33) and a transverse shock absorption rod (34), the connecting ring (31) is positioned at two sides of the battery (21), the inner side of the connecting ring (31) is provided with a bolt (32), one end of the bolt (32) is clamped in the connecting ring (31), the other end of the bolt (32) penetrates through the connecting ring (31), the other end of the bolt (32) is clamped at the inner side of the fixed nut (22), the bolt (32) is connected with the fixed nut (22) through a bolt, a vertical shock absorption rod (33) is fixedly arranged on the outer wall of the connecting ring (31), one end of the vertical shock absorption rod (33) is fixed on the outer wall of the connecting ring (31), the other end department of vertical shock attenuation pole (33) is fixed and is equipped with horizontal shock attenuation pole (34), horizontal shock attenuation pole (34) are located the outside of battery (21).

5. The lithium battery protection device of claim 4, wherein: vertical shock absorber pole (33) include telescopic link (331), spring (332) and connecting block (333), telescopic link (331) are fixed on the outer wall of go-between (31), the fixed connecting block (333) that is equipped with in top of telescopic link (331), the inboard of telescopic link (331) is equipped with spring (332), the one end of spring (332) is fixed on the outer wall of go-between (31), the other end of spring (332) is fixed on the lateral wall of connecting block (333), horizontal shock absorber rod (34) are fixed on one side lateral wall of connecting block (333).

6. The lithium battery protection device of claim 4, wherein: the transverse shock absorption rod (34) comprises a second telescopic rod (341), a second spring (342) and a magnetic block (343), the second telescopic rod (341) is fixed on the side wall of the connecting block (333), the magnetic block (343) is fixedly arranged at the top end of the second telescopic rod (341), the second spring (342) is arranged on the inner side of the second telescopic rod (341), one end of the second spring (342) is fixed on the side wall of the connecting block (333), the other end of the second spring (342) is fixed on the side wall of the magnetic block (343), and the protection mechanisms (3) on two sides of the battery (21) are connected with each other through the magnetic block (343).