CN212625893U

CN212625893U - Shockproof buffer structure of lithium battery protection board installation cavity

Info

Publication number: CN212625893U
Application number: CN202021707858.9U
Authority: CN
Inventors: 徐冬平
Original assignee: Taizhou Dongyuan Intelligent Technology Co ltd
Current assignee: Taizhou Dongyuan Intelligent Technology Co ltd
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2021-02-26
Anticipated expiration: 2030-08-17

Abstract

The utility model provides a shockproof buffer structure of lithium cell protection shield installation cavity belongs to lithium cell accessory technical field. The buffer structure comprises a shell body, wherein a buffer cavity is arranged in the shell body, a fixed buffer structure is arranged in the buffer cavity, the fixed buffer structure comprises a clamping plate arranged on the upper side and the lower side of the buffer cavity, and a plurality of elastic buffer parts are arranged between the clamping plate and the buffer cavity. The valve module can open or close the buffering chamber, and the back is opened in the buffering chamber, inserts lithium battery protection shield to the buffering intracavity, thereby the elastic buffer spare of going up the downside can provide pressure to the clamp plate of going up the downside respectively and improve the clamp plate and press from both sides lithium battery protection shield tightly, when receiving external impact, thereby the elastic buffer spare can provide the buffering and prevent that lithium battery protection shield is impaired, and ejecting subassembly can be ejecting with lithium battery protection shield when the buffering chamber is opened, conveniently takes out.

Description

Shockproof buffer structure of lithium battery protection board installation cavity

Technical Field

The utility model belongs to the technical field of the lithium cell accessory, a shockproof buffer structure of lithium cell protection shield installation cavity is related to.

Background

The lithium battery protection board is used for charging and discharging protection of the series lithium battery pack; when the battery pack is fully charged, the voltage difference between the single batteries can be ensured to be smaller than a set value (generally +/-20 mV), the uniform charging of the single batteries of the battery pack is realized, and the charging effect in a series charging mode is effectively improved; simultaneously, the overvoltage, undervoltage, overcurrent, short circuit and overtemperature states of each single battery in the battery pack are detected, so that the service life of the battery is protected and prolonged; the undervoltage protection prevents each single battery from being damaged due to overdischarge when the single battery is used for discharging;

lithium battery protection shield among the prior art all fixes through the bolt when the installation, leads to lithium battery protection shield to damage very easily when receiving external impact.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem, a shockproof buffer structure of lithium cell protection shield installation cavity is provided.

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

the utility model provides a shockproof buffer structure of lithium cell protection shield installation cavity, includes the shell body, the shell body in be equipped with the cushion chamber, the cushion chamber in be equipped with fixed buffer structure, fixed buffer structure including setting up the pinch-off blades of downside on the cushion chamber, pinch-off blades and cushion chamber between be equipped with a plurality of elastic buffer spare, shell body one side still be equipped with the valve component, and the cushion chamber is kept away from valve component one side and is equipped with ejecting subassembly.

In the shockproof buffer structure of the lithium battery protection plate installation cavity, one side, away from the elastic buffer part, of the clamping plate is provided with a buffer layer, the buffer layer is provided with a plurality of clamping parts with round sections, and the clamping parts on the upper buffer layer and the lower buffer layer are in one-to-one correspondence.

In the shockproof buffer structure of the lithium battery protection plate installation cavity, the elastic buffer part is a compression spring, and two ends of the compression spring are fixedly connected with the clamping plate and the buffer cavity respectively.

In the shockproof buffer structure of the lithium battery protection plate installation cavity, the valve assembly comprises a baffle, two limiting sliding grooves are arranged on one side, close to the baffle, of the outer shell, the two limiting sliding grooves are respectively located on two sides of the buffer cavity, and two limiting sliding blocks which are respectively inserted into the two limiting sliding grooves are arranged on the baffle.

In the shockproof buffer structure of the lithium battery protection plate installation cavity, a second compression spring is further arranged in the limiting sliding groove, and two ends of the second compression spring are fixedly connected with the baffle and the limiting sliding groove respectively.

In the shockproof buffer structure of the lithium battery protection plate installation cavity, one side, away from the outer shell, of the baffle is further provided with the pull block, and one side, close to the buffer cavity, of the baffle is further provided with the second buffer layer.

In the shockproof buffer structure of the lithium battery protection plate mounting cavity, the cross sections of the limiting sliding groove and the limiting sliding block are both T-shaped.

In the shockproof buffer structure of the lithium battery protection plate installation cavity, the ejection assembly comprises an ejection groove formed in the side wall of the buffer cavity far away from the valve assembly, and an ejection block and a third compression spring which can horizontally reciprocate are arranged in the ejection groove.

In the shockproof buffer structure of the lithium battery protection plate installation cavity, the first buffer layer and the second buffer layer are both made of elastic materials.

In the shockproof buffer structure of the lithium battery protection plate installation cavity, the side part of the clamping plate is abutted against the side wall of the buffer cavity.

Compared with the prior art, the utility model has the advantages of: the valve module can open or close the buffering chamber, and the back is opened in the buffering chamber, inserts lithium battery protection shield to the buffering intracavity, thereby the elastic buffer spare of going up the downside can provide pressure to the clamp plate of going up the downside respectively and improve the clamp plate and press from both sides lithium battery protection shield tightly, when receiving external impact, thereby the elastic buffer spare can provide the buffering and prevent that lithium battery protection shield is impaired, and ejecting subassembly can be ejecting with lithium battery protection shield when the buffering chamber is opened, conveniently takes out.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic diagram of the overall structure provided by the present invention;

fig. 2 is a schematic cross-sectional view of the present invention;

fig. 3 is a schematic sectional view of the position limiting slide groove.

Detailed Description

As shown in fig. 1-3, a shockproof buffer structure of a lithium battery protection plate installation cavity comprises an outer shell 1, wherein a buffer cavity 2 is arranged in the outer shell 1, a fixed buffer structure 3 is arranged in the buffer cavity 2, the fixed buffer structure 3 comprises a clamping plate 4 arranged on the upper side and the lower side of the buffer cavity 2, a plurality of elastic buffer members 5 are arranged between the clamping plate 4 and the buffer cavity 2, a valve assembly 6 is further arranged on one side of the outer shell 1, and an ejection assembly 7 is arranged on one side of the buffer cavity 2 away from the valve assembly 6.

In this embodiment, valve member 6 can open or close the buffering chamber, and the back is opened in the buffering chamber, inserts lithium battery protection shield to the buffering intracavity, thereby the elastic buffer spare 5 of going up the downside can provide pressure to the clamp plate 4 of going up the downside respectively and improve the clamp plate 4 and press from both sides lithium battery protection shield tightly, when receiving external impact, thereby the elastic buffer spare 5 can provide the buffering and prevent that lithium battery protection shield is impaired, ejecting subassembly 7 can be ejecting lithium battery protection shield when the buffering chamber is opened, conveniently takes out.

Preferably, as shown in fig. 1 and 2, a first buffer layer 8 is disposed on a side of the clamping plate 4 away from the elastic buffer 5, a plurality of clamping portions 9 with circular cross sections are disposed on the first buffer layer 8, and the clamping portions 9 on the upper and lower first buffer layers 8 are in one-to-one correspondence. The first buffer layer 8 and the clamping part 9 on the first buffer layer 8 are made of elastic materials, and can further play a role in shock resistance and buffering.

Preferably, as shown in fig. 1 and fig. 2, the elastic buffer 5 is a first compression spring, and two ends of the first compression spring are fixedly connected with the clamping plate 4 and the buffer cavity 2, respectively. A compression spring of the upper side and the lower side can drive the two clamping plates to move towards the direction close to the lithium battery protection plate and clamp the lithium battery protection plate, and the shockproof buffer device has good shockproof buffer performance.

Specifically, as shown in fig. 2 and 3, the valve assembly 6 includes a baffle 10, two limiting sliding grooves 11 are disposed on one side of the outer casing 1 close to the baffle 10, the two limiting sliding grooves 11 are respectively located on two sides of the buffer cavity 2, and two limiting sliding blocks 12 respectively inserted into the two limiting sliding grooves 11 are disposed on the baffle 10. Still be equipped with No. two compression spring 13 in the spacing spout 11, No. two compression spring 13 both ends link firmly with baffle 10 and spacing spout 11 respectively. The baffle 10 is far away from shell body 1 one side and still is equipped with and draws piece 14, baffle 10 be close to buffer chamber 2 one side and still be equipped with No. two buffer layers 15. The downward pulling draws the piece to drive the baffle downstream to make the cushion chamber open, No. two compression spring 13 can drive the baffle and reset after the piece is drawn to the hand release, and spacing spout 11 cooperation spacing slider can carry on spacingly to the baffle, prevents that it from taking place the skew when the motion. The second buffer layer 15 is made of elastic materials, can further play the role of shockproof buffering, and can weaken the impact on the lithium battery protection board from the horizontal direction by matching with the ejection assembly.

Preferably, as shown in fig. 3, the cross sections of the limiting sliding chute 11 and the limiting sliding block 12 are both T-shaped, so that the baffle can be prevented from falling off.

Preferably, as shown in fig. 1, the ejection assembly 7 includes an ejection slot 16 disposed on a side wall of the buffer chamber 2 away from the valve assembly 6, and an ejection block 17 and a third compression spring 18 are disposed in the ejection slot 16 and can reciprocate horizontally. The lithium battery protection board is inserted to the ejecting block which can be ejected to move the ejecting block to the ejecting groove, then the baffle is closed to complete the installation of the lithium battery protection board, when the lithium battery protection board is taken out, the baffle is opened, and the third compression spring 18 can provide thrust to the ejecting block so that the ejecting block can eject the lithium battery protection board.

Preferably, buffer layer number one 8 and buffer layer number two 15 are both made of an elastic material. The elastic material may be rubber or the like.

The side part of the clamping plate 4 abuts against the side wall of the buffer cavity 2 to prevent the clamping plate from shifting when moving.

The utility model discloses a theory of operation is: the valve component 6 can open or close the buffer cavity, after the buffer cavity is opened, the lithium battery protection board is inserted into the buffer cavity, the elastic buffer parts 5 on the upper side and the lower side can respectively provide pressure for the clamping boards 4 on the upper side and the lower side so as to improve the clamping of the lithium battery protection board by the clamping boards 4, when the lithium battery protection board is impacted by the outside, the elastic buffer parts 5 can provide buffer so as to prevent the lithium battery protection board from being damaged, the ejection component 7 can eject the lithium battery protection board when the buffer cavity is opened, the buffer layer 8 and the clamping part 9 on the buffer layer 8 are conveniently taken out and made of elastic materials, the compression spring on the upper side and the lower side can further play a role of shockproof buffer and can drive the two clamping boards to move towards the direction close to the lithium battery protection board and clamp the lithium battery protection board, and the pull block can be driven to, no. two compression spring 13 can drive the baffle and reset after the pull block is loosened by hand, and the spacing sliding groove 11 cooperates with the spacing sliding block to limit the baffle, so that the baffle is prevented from deviating during movement. No. two buffer layers 15 are made by elastic material, can further play the effect of shockproof buffering, and No. two buffer layer cooperation ejecting subassembly can weaken insert to can push up ejecting piece and make its to ejecting inslot motion from the impact lithium battery protection board that the horizontal direction caused lithium battery protection board, close the installation that can accomplish lithium battery protection board with the baffle afterwards, when taking out lithium battery protection board, open the baffle, thereby No. three compression spring 18 can provide thrust to ejecting piece and make ejecting piece ejecting with lithium battery protection board.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a shockproof buffer structure of lithium battery protection shield installation cavity, includes shell body (1), its characterized in that, shell body (1) in be equipped with cushion chamber (2), cushion chamber (2) in be equipped with fixed buffer structure (3), fixed buffer structure (3) including setting up pinch-off blades (4) of downside on cushion chamber (2), pinch-off blades (4) and cushion chamber (2) between be equipped with a plurality of elastic buffer spare (5), shell body (1) one side still be equipped with valve component (6), and cushion chamber (2) keep away from valve component (6) one side and be equipped with ejecting subassembly (7).

2. The shockproof buffer structure of the lithium battery protection plate installation cavity according to claim 1, wherein the side of the clamping plate (4) away from the elastic buffer member (5) is provided with a first buffer layer (8), the first buffer layer (8) is provided with a plurality of clamping portions (9) with circular cross sections, and the clamping portions (9) on the upper and lower first buffer layers (8) are in one-to-one correspondence.

3. The shockproof buffer structure of the lithium battery protection plate installation cavity according to claim 2, wherein the elastic buffer member (5) is a compression spring, and two ends of the compression spring are respectively fixedly connected with the clamping plate (4) and the buffer cavity (2).

4. The shockproof buffer structure of the lithium battery protection plate installation cavity according to claim 2, wherein the valve assembly (6) comprises a baffle (10), one side of the outer shell (1) close to the baffle (10) is provided with two limiting sliding grooves (11), the two limiting sliding grooves (11) are respectively located at two sides of the buffer cavity (2), and the baffle (10) is provided with two limiting sliding blocks (12) respectively inserted into the two limiting sliding grooves (11).

5. The shockproof buffer structure of the lithium battery protection plate installation cavity according to claim 4, wherein a second compression spring (13) is further disposed in the limiting sliding groove (11), and two ends of the second compression spring (13) are respectively fixedly connected to the baffle (10) and the limiting sliding groove (11).

6. The shockproof buffer structure of the lithium battery protection plate installation cavity according to claim 4, wherein a pull block (14) is further disposed on the side of the baffle (10) away from the outer shell (1), and a second buffer layer (15) is further disposed on the side of the baffle (10) close to the buffer cavity (2).

7. The shockproof buffer structure of the lithium battery protection plate installation cavity according to claim 5, wherein the limiting sliding groove (11) and the limiting sliding block (12) are T-shaped in cross section.

8. The shock-proof buffering structure for a lithium battery protection plate installation cavity according to claim 1, wherein the ejection assembly (7) comprises an ejection groove (16) formed in a side wall of the buffering cavity (2) far from the valve assembly (6), and an ejection block (17) and a compression spring (18) which can horizontally reciprocate are arranged in the ejection groove (16).

9. The lithium battery protection plate mounting cavity shockproof buffer structure as claimed in claim 6, wherein the buffer layer No. one (8) and the buffer layer No. two (15) are both made of elastic material.

10. The lithium battery protection plate mounting cavity shockproof buffer structure as claimed in claim 1, wherein the side of the clamping plate (4) abuts against the side wall of the buffer cavity (2).