CN215377496U

CN215377496U - Power battery pack structure with bulge alarming function

Info

Publication number: CN215377496U
Application number: CN202121371867.XU
Authority: CN
Inventors: 励建炬; 胡翔; 肖达安
Original assignee: Huizhou Kdl Precision Industry Co ltd
Current assignee: Huizhou Kdl Precision Industry Co ltd
Priority date: 2021-06-21
Filing date: 2021-06-21
Publication date: 2021-12-31
Anticipated expiration: 2031-06-21

Abstract

The utility model discloses a power battery pack structure with a bulge alarming function, which comprises a triggering part, an alarm, a battery pack shell and a plurality of partition plate assemblies, wherein the partition plate assemblies are uniformly arranged in the battery pack shell to divide the interior of the battery pack shell into a plurality of battery positions for placing batteries, the left side of each battery position is provided with the partition plate assembly, the partition plate assemblies can deform and shift leftwards when being pushed, the triggering part is arranged in the battery pack shell, the triggering part is close to the left side of the leftmost partition plate assembly and is triggered to be switched on by the shifting of the partition plate assembly, and the alarm is connected with the triggering part. According to the utility model, by adopting the movable partition plate assembly, any battery in the battery pack shell can trigger the alarm when the bulge occurs, an alarm structure is not required to be arranged on each battery, the integral structure is simpler, and the manufacturing cost can be reduced.

Description

Power battery pack structure with bulge alarming function

Technical Field

The utility model relates to the field of batteries, in particular to a power battery pack structure with a bulge alarming function.

Background

Lithium ion batteries are chemical batteries that use lithium as the negative active material. When the lithium battery is improperly used or the quality of the battery is not too high, the lithium battery is prone to bulge. When the battery is not replaced in time after being swelled, the battery can still be used continuously, so that the battery can explode, damage equipment and even endanger the personal safety of a user. To this problem, current battery has appeared possessing the function that can report to the police to the swell, the ternary lithium ion battery who has swell alarming function as the chinese patent document of application number CN202021388431.7 discloses, add on the battery body and establish the protective housing, the inner wall of protective housing sets up trigger piece, alarm and power, take place the breakable shell of swell extrusion when the battery, lead to the conducting solution to ooze and cover the portion that opens circuit of wire subassembly, make wire subassembly intercommunication alarm and power, alarm circular telegram is reported to the police. However, this technique is only applicable to a single battery, and if it is applied to a power battery pack, the structure needs to be added to each battery in the battery pack, which results in a very complicated overall structure.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model provides the battery pack structure which is simple in structure and has a bulge alarming function.

The utility model provides a power battery pack structure with swell alarming function, includes trigger piece, siren, group battery casing, still includes a plurality of baffle subassemblies, baffle subassembly align to grid sets up in group battery casing, makes group battery casing inside be separated for a plurality of battery positions that are used for placing the battery, its each the left side of battery position all have baffle subassembly, baffle subassembly can be left deformation shift when receiving the promotion, trigger the piece and set up in group battery casing, trigger the piece and press close to the left side of the baffle subassembly of the leftmost side and receive the shift of this baffle subassembly and trigger the switch-on, the siren is connected with trigger.

According to the technical scheme, grooves protruding towards the outside are formed in two side walls, connected with the partition plate assemblies, of the battery pack shell, each partition plate assembly comprises a partition plate and two flexible clamping strips arranged at two ends of the partition plate respectively, and the outer end portions of the clamping strips are connected in the grooves in a matched mode.

Further improved technical scheme, the baffle includes left baffle and the right baffle that is parallel to each other and sets up being used for between left baffle and the right baffle and connect fixed connecting plate with both, the tip of left baffle is close to in the inner wall of group battery casing, have between the tip of right baffle and the inner wall of group battery casing and supply the crooked interval of card strip deformation.

According to the further improved technical scheme, the left partition plate, the right partition plate and the connecting plate are of an integrated structure.

According to the technical scheme for further improvement, the right side of the clamping strip is provided with a deformation groove for the clamping strip to bend rightwards.

According to the further improved technical scheme, the cross sections of the outer end parts of the groove and the clamping strip are arc-shaped.

According to the technical scheme of further improvement, the trigger piece is two elastic pieces which are parallel to the trigger piece and have gaps, and the two elastic pieces are respectively connected with the positive electrode and the negative electrode of the external circuit.

According to a further improved technical scheme, the number of the battery bits is not more than five.

When the battery box is used, the batteries are respectively loaded on the battery positions, when the side surface of one battery bulges, the left separator assembly and the battery are pushed to move towards the left side until the leftmost separator assembly displaces to trigger the trigger piece to be switched on, and at the moment, the alarm sends out an alarm signal to inform a user. According to the utility model, by adopting the movable partition plate assembly, any battery in the battery pack shell can trigger the alarm when the bulge occurs, an alarm structure is not required to be arranged on each battery, the integral structure is simpler, and the manufacturing cost can be reduced.

Drawings

FIG. 1 is a schematic view of the internal structure of the present invention;

fig. 2 is an enlarged schematic view at a of fig. 1.

Detailed Description

The present invention will be described in further detail below with reference to specific embodiments and the attached drawings.

A preferred embodiment, referring to fig. 1 and 2, a power battery pack structure with a bulge alarm function includes a trigger 3, an alarm, a battery pack case 1, and a plurality of partition plate assemblies 2, wherein the partition plate assemblies 2 are uniformly arranged in the battery pack case 1, so that the inside of the battery pack case 1 is partitioned into a plurality of battery positions 11 for placing batteries, the left side of each battery position 11 is provided with a partition plate assembly 2, the partition plate assemblies 2 can deform and shift to the left when pushed, the trigger 3 is arranged in the battery pack case 1, the trigger 3 is close to the left side of the leftmost partition plate assembly 2 and is triggered to be connected by the shift of the partition plate assembly 2, and the alarm is connected with the trigger 3. In this embodiment, baffle subassembly 2 can appear deforming and shifting under certain atress circumstances to can make trigger 3 trigger, baffle subassembly 2 also plays the effect of separating group battery casing 1. In addition, the triggering part 3 is two elastic pieces which are parallel to the triggering part and have gaps, the two elastic pieces are respectively connected with the positive electrode and the negative electrode of an external circuit, the external circuit generally comprises a power supply, an alarm and related leads, the connection mode is simpler, and the device belongs to the prior art. The elastic piece is easy to deform, and the elastic piece and the partition plate assembly 2 can deform and contact when pushed, so that the circuit is communicated.

In order to further improve the above embodiment, referring to fig. 1 and fig. 2, two side walls of the battery pack case 1 connected to the partition board assemblies 2 are respectively provided with a groove 12 protruding outward, each partition board assembly 2 includes a partition board 21 and two flexible clamping strips 22 respectively disposed at two ends of the partition board 21, and outer end portions of the clamping strips 22 are connected in the grooves 12 in a matching manner. In this structure, through setting up recess 12, convenient and card strip 22 outer tip be connected, only need with card strip 22 outer tip disect insertion recess 12 in can, simple to operate. The strip 22 is made of a flexible material, so that the strip has a deformation capability.

In order to enable the partition board 21 to deform toward the left, the partition board 21 of the further preferred embodiment includes a left partition board 211 and a right partition board 212 that are parallel to each other, and a connecting board 213 that is disposed between the left partition board 211 and the right partition board 22 and is used for connecting and fixing the left partition board 211 and the right partition board 22, wherein an end of the left partition board 211 is close to an inner wall of the battery pack case 1, and a space for the clamping strips 22 to deform and bend is left between an end of the right partition board 212 and the inner wall of the battery pack case 1. In this structure, utilize left baffle 211 to press close to the inner wall of group battery casing 1 to restricted card strip 22's deformation space, left the deformation of the interval card strip 22 of being convenient for simultaneously at right baffle 212, make baffle 21 can be better toward the deformation on the left side, improve to be the ability that triggers 3 triggers. In addition, in order to further improve the directional deformation capability of the clamping strip 22, a deformation groove 221 for bending the clamping strip 22 rightwards is formed in the right side of the clamping strip 22, so that the clamping strip 22 is convenient to bend rightwards.

Further, the left partition 211, the right partition 212 and the connecting plate 213 are of an integrated structure with high structural strength and convenient processing. In addition, in each of the above embodiments, the cross-sectional shapes of the groove 12 and the outer end portion of the card bar 22 are both arc-shaped. In addition, since the bulge is used to push the separator assembly 2 and the battery, the number of the battery positions 11 is not too large, so that the resistance is not too large, and it is ensured that the alarm can be smoothly triggered when the bulge occurs, and preferably, the number of the battery positions 11 is not more than five.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "arranged," and the like are to be construed broadly and may, for example, be connected in an arrangement, detachably connected, or integrated; they may be mechanically coupled, directly coupled, or indirectly coupled through intervening agents, both internally and/or in any other manner known to those skilled in the art. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

While the utility model has been described in conjunction with the specific embodiments set forth above, it is evident that many alternatives, modifications, and variations will be apparent to those skilled in the art in light of the foregoing description. Accordingly, it is intended to embrace all such alternatives, modifications, and variations that fall within the spirit and scope of the appended claims.

Claims

1. The utility model provides a power battery pack structure with swell alarming function, includes trigger piece (3), siren, group battery casing (1), its characterized in that: still include a plurality of baffle subassemblies (2), baffle subassembly (2) align to grid sets up in group battery casing (1), makes group battery casing (1) inside be separated for a plurality of battery position (11) that are used for placing the battery, its each the left side of battery position (11) all have baffle subassembly (2), baffle subassembly (2) can be left deformation shift when receiving the promotion, trigger piece (3) set up in group battery casing (1), trigger piece (3) press close to the left side of the most left baffle subassembly (2) and receive the shift of this baffle subassembly (2) and trigger the switch-on, the siren is connected with trigger piece (3).

2. The power battery pack structure with the bulge alarming function as claimed in claim 1, wherein: the battery pack is characterized in that grooves (12) protruding towards the outside are formed in two side walls, connected with the partition plate assemblies (2), of the battery pack shell (1), each partition plate assembly (2) comprises a partition plate (21) and two flexible clamping strips (22) arranged at two ends of each partition plate (21), and the outer end portions of the clamping strips (22) are connected into the grooves (12) in a matched mode.

3. The power battery pack structure with the bulge alarming function as claimed in claim 2, wherein: baffle (21) are including left baffle (211) and right baffle (212) that are parallel to each other and set up being used for between left baffle (211) and right baffle (212) connecting plate (213) fixed with both connections, the tip of left side baffle (211) is close to the inner wall of group battery casing (1), have between the tip of right baffle (212) and the inner wall of group battery casing (1) and supply card strip (22) crooked interval of deformation.

4. The power battery pack structure with the bulge alarming function as claimed in claim 3, wherein: the left partition plate (211), the right partition plate (212) and the connecting plate (213) are of an integrated structure.

5. The power battery pack structure with the bulge alarming function as claimed in claim 3, wherein: the right side of the clamping strip (22) is provided with a deformation groove (221) for the clamping strip (22) to bend rightwards.

6. The power battery pack structure with the bulge alarming function as claimed in claim 2, wherein: the cross-sectional shapes of the outer end parts of the groove (12) and the clamping strip (22) are both arc-shaped.

7. The power battery pack structure with the bulge alarming function as claimed in claim 1, wherein: trigger piece (3) are two parallel its elastic sheet that have gapped of, two elastic sheet be connected with external circuit's positive negative pole respectively.

8. The power battery pack structure with a bulge warning function according to any one of claims 1 to 7, wherein: the number of battery bits (11) is not more than five.