CN210296418U

CN210296418U - Protective sheet for storage battery

Info

Publication number: CN210296418U
Application number: CN201920928389.4U
Authority: CN
Inventors: 汤序锋; 高根芳; 赵海敏; 方明学; 李越南; 周文渭; 陈群; 陈彩凤; 陈羽婷; 施璐
Original assignee: Tianneng Battery Group Co Ltd
Current assignee: Tianneng Battery Group Co Ltd
Priority date: 2019-06-19
Filing date: 2019-06-19
Publication date: 2020-04-10
Anticipated expiration: 2029-06-19

Abstract

The utility model discloses a protection plate for battery, protection plate for battery includes body and a plurality of locating on the body, pass clearance and tip between two adjacent negative pole ears when using and extend to the protection strip of anodal ear department, the bottom surface of protection strip is equipped with the blend stop that shelters from baffle upper portion, is equipped with a blend stop between every positive plate and the negative plate. The utility model discloses the setting of battery protection piece through the protection strip is favorable to making the battery to fix between the negative pole ear with the protection piece, can not drift, turn on one's side etc. after the battery liquid feeding. In the use process of the battery, active substances on the top of the polar plate can grow, and the positive plate and the negative plate can be separated by the barrier strips, so that micro short circuit is avoided.

Description

Protective sheet for storage battery

Technical Field

The utility model relates to a battery technical field especially relates to a protection piece for battery.

Background

The impact force of liquid feeding can cause the damage of certain degree to the baffle under certain circumstances in the battery production process, and some battery foreign matters drop, and the growth of positive plate and the contact of negative bus bar etc. all can cause the battery short circuit in the use, and these are all the leading factor that leads to the battery inefficacy.

At present, in the assembly process of a storage battery, a protective net is placed in most of the central area of a single battery to prevent a storage battery separator from being damaged and prevent foreign matters from falling into the battery in the use process to damage the battery.

The utility model discloses a utility model with grant bulletin number CN202749421U discloses a lead acid battery's protection piece, including the sheet, the sheet material be polytetrafluoroethylene, the sheet on be equipped with a plurality of circular apertures, circular aperture diameter be 1-5cm, sheet thickness be 0.5-1.5 mm.

The utility model discloses a lead accumulator protection piece is CN 208157561U's utility model discloses a lead accumulator, lead accumulator includes end utmost point post, battery jar and locates a plurality of utmost point crowd that have the busbar in the battery jar, lead accumulator protection piece includes laminar body, be equipped with the U type groove of a plurality of sections bending type formation and busbar complex inversion on the body, the part of not buckling is provided with the acid hole of permeating.

The existing protection sheet design aims at protecting the short circuit of the upper part of the active substance at the later stage of the polar plate group, and the polar plate at the upper end of the polar group is matched with the non-compressed part, which easily causes the active substance at the later stage of the battery to grow so as to cause the short circuit of positive and negative polarities, thus influencing the service life of the battery.

SUMMERY OF THE UTILITY MODEL

The utility model provides a to exist among the prior art not enough, provide a protection piece for battery, can avoid in the battery use, polar plate top active material grows and leads to the emergence of little short circuit.

The utility model provides a protection piece is used to battery, the battery includes utmost point crowd, utmost point crowd includes alternate arrangement's positive plate and negative plate to and separate just, the baffle of negative plate, just, the negative plate is higher than on the top of baffle, and the positive ear of all positive plates and the negative pole ear of all negative plates are arranged respectively into one row, protection piece includes body and a plurality of locating for the battery on the body, pass the protection strip that clearance and tip between two adjacent negative pole ears extend to positive ear department when using, the bottom surface of protection strip is equipped with the blend stop that shelters from baffle upper portion, is equipped with a blend stop between every positive plate and the negative plate.

Preferably, the pole plate comprises a plate-shaped pole plate body and a pole lug arranged on the pole plate body, and the lower edge of the barrier strip extends to the upper edge of the pole plate body. The polar plate is placed vertically, and utmost point ear is located the top of polar plate body, the blend stop card is between the utmost point ear and the baffle of polar plate, and the lower edge of blend stop is the lowest department of blend stop, and the height of this lowest department roughly reaches the last edge department of polar plate body. Due to the existence of the assembly pressure of the pole group, the barrier strip cannot be inserted into the position of the pole plate body, but the position above the pole plate body is not compressed because the partition plate is higher than the pole plate body, and the barrier strip can stretch into the position.

Preferably, the width of the guard bar is consistent with the width of a gap between two adjacent negative electrode tabs. The consistency here means that the width of the protection strip is the same as the width of the gap between two adjacent negative electrode lugs, so that the protection strip can extend into the gap between two adjacent negative electrode lugs when being installed on one hand, and cannot shake in the gap on the other hand.

Preferably, the end of the protection strip is provided with a chamfer which is convenient to extend into a gap between two adjacent negative electrode lugs. The arrangement of the chamfer is convenient for the installation of the protective sheet for the storage battery, and the damage to the partition plate during the installation of the protective sheet for the storage battery can also be avoided.

Preferably, the number of the negative plates of the plate group is larger than that of the positive plates, and the number of the protective strips is the same as that of the positive plates. Negative plate and positive plate alternate arrangement, negative plate are more than the positive plate, so, and two of utmost point crowd the outside are the negative plate, and the top of all positive plates is just in time sheltered from to the protective bar, prevents that the battery in the recycling use cause because of the long height of positive plate grid and the negative busbar between the short circuit.

Preferably, the body is provided with a bulge convenient for taking and placing the protective sheet for the storage battery.

The utility model discloses the setting of battery protection piece through the protection strip is favorable to making the battery to fix between the negative pole ear with the protection piece, can not drift, turn on one's side etc. after the battery liquid feeding. In the use process of the battery, active substances on the top of the polar plate can grow, and the positive plate and the negative plate can be separated by the barrier strips, so that micro short circuit is avoided.

Drawings

Fig. 1 is a schematic structural diagram of the battery protection sheet of the present invention.

Fig. 2 is a schematic structural view of another view angle of the battery protection sheet of the present invention.

Fig. 3 is a schematic structural view of the battery protection sheet and the pole group of the present invention.

Detailed Description

As shown in fig. 1 to 3, a protective sheet 2 for a storage battery is used to be mounted on a storage battery plate group 1 to prevent damage of a storage battery separator and damage of the storage battery due to foreign matter falling into the storage battery during use. The storage battery comprises a pole group 1, wherein the pole group 1 comprises positive plates and negative plates 11 which are alternately arranged, and a partition plate 12 for separating the positive plates from the negative plates, the top end of the partition plate 12 is higher than the positive plates and the negative plates, positive lugs 13 of all the positive plates and negative lugs 14 of all the negative plates 11 are respectively arranged in a row, all the positive lugs 13 are connected by using a positive busbar 15, and all the negative lugs 14 are connected by using a negative busbar 16.

The protective sheet 2 for the storage battery comprises a body 21 and a plurality of protective strips 22 which are arranged on the body 21 and penetrate through a gap between two adjacent negative electrode lugs 14 when in use, the end parts of the protective strips extend to the positive electrode lug 13, barrier strips 23 which shield the upper part of the partition plate 12 are arranged on the bottom surface of each protective strip 22, and one barrier strip 23 is arranged between each positive electrode plate and each negative electrode plate 11. The protective strips 22 are clamped between the negative electrode lugs 14, so that the protective sheet 2 for the storage battery is favorably fixed between the negative electrode lugs 14 and cannot drift or roll over after the storage battery is filled with liquid. In the use process of the battery, active substances on the top of the polar plate can grow, and the barrier strips 23 can separate the positive and negative polar plates, so that micro short circuit is avoided.

The polar plate comprises a plate-shaped polar plate body and a polar lug arranged on the polar plate body, and the lower edge of the barrier strip 23 extends to the upper edge of the polar plate body. The polar plate is vertically placed, the pole lug is located the top of polar plate body, and the height of positive and negative plate keeps unanimous after the equipment, and blend stop 23 card is between the pole lug of polar plate and baffle 12, and the lower edge of blend stop 23 is the lowest of blend stop 23, and the height of this lowest department is roughly to the last edge department of polar plate body. Due to the existence of the assembly pressure of the pole group, the barrier strip 23 cannot be inserted into the position of the pole plate body, but the position above the pole plate body is not compressed because the partition plate 12 is higher than the pole plate body, and the barrier strip 23 can stretch into the position.

The width of the guard bar 22 is consistent with the width of the gap between two adjacent negative electrode tabs 14. The consistency here means that the width of the guard bar 22 is the same as the width of the gap between two adjacent negative electrode tabs 14, so that the guard bar can extend into the gap between two adjacent negative electrode tabs 14 during installation, and cannot shake in the gap. The ends of the guard bars 22 are provided with chamfers 24 that facilitate insertion into the gaps between adjacent two of the negative electrode tabs 14. The setting of chamfer 24 is convenient for this application for the installation of protection piece 2 for the battery, also can avoid damaging baffle 12 when installing protection piece 2 for the battery.

Negative plate 11 and positive plate alternate arrangement, negative plate 11 is more than the positive plate, so, two of utmost point crowd outside are negative plate 11, and the quantity of protective strip 22 is the same with positive plate quantity, and protective strip 22 just in time shelters from the top of all positive plates, prevents that the battery from causing and the negative busbar 16 between short circuit because of the positive plate grid length is high in the recycling process. The body 21 is provided with a bulge 25 which is convenient for taking and placing the protective sheet 2 for the storage battery.

Claims

1. The utility model provides a protection piece is used to battery, the battery includes utmost point crowd, utmost point crowd includes alternate arrangement's positive plate and negative plate to and separate just, the baffle of negative plate, just, the negative plate is higher than on the top of baffle, and the positive ear of all positive plates and the negative pole ear of all negative plates are arranged respectively into one row, a serial communication port, protection piece is used to battery includes body and a plurality of locating on the body, when using, pass clearance and tip between two adjacent negative pole ears and extend to the protection strip of positive ear department, the bottom surface of protection strip is equipped with the blend stop that shelters from baffle upper portion, is equipped with a blend stop between every positive plate and the negative plate.

2. The protective sheet according to claim 1, wherein the plate comprises a plate body and a tab disposed on the plate body, and a lower edge of the tab extends to an upper edge of the plate body.

3. The protective sheet for a secondary battery according to claim 1, wherein the width of the protective strip is the same as the width of the gap between two adjacent negative electrode tabs.

4. The protective sheet for a secondary battery according to claim 1, wherein the end portion of the protective strip is provided with a chamfer for facilitating the insertion into the gap between two adjacent negative electrode tabs.

5. The protective sheet for a secondary battery according to claim 1, wherein the number of the negative electrode plates of the electrode group is larger than that of the positive electrode plates, and the number of the protective strips is the same as that of the positive electrode plates.

6. The protective sheet according to claim 1, wherein the body has a protrusion for facilitating handling of the protective sheet.