CN213340473U

CN213340473U - Exhaust type cover plate for water bath formation of storage battery

Info

Publication number: CN213340473U
Application number: CN202021830394.0U
Authority: CN
Inventors: 王博; 张凡荣; 时岩; 陈永顺
Original assignee: Zhejiang Tianneng Automobile Battery Co ltd
Current assignee: Zhejiang Tianneng Automobile Battery Co ltd
Priority date: 2020-08-27
Filing date: 2020-08-27
Publication date: 2021-06-01
Anticipated expiration: 2030-08-27

Abstract

The utility model discloses a but air discharge formula cover plate that battery water bath becomes usefulness, the lid top surface of battery have a cover plate groove, and cover plate tank bottom surface is equipped with the acid filling hole that communicates with battery chamber, but air discharge formula cover plate is horizontal triangular prism shape structure, the inside cavity of triangular prism, and one of them side is the opening setting, and open-ended side cooperation down is put into during the use in the cover plate groove, a plurality of exhaust holes have been seted up to another side of triangular prism. The utility model discloses but exhaust formula cover plate is used for the battery water bath to become, through designing into the triangular prism shape structure with the exhaust formula cover plate, two lateral walls can be used to the condensation backward flow of vapor, and the exhaust hole can be used to exhaust the pressure release.

Description

Exhaust type cover plate for water bath formation of storage battery

Technical Field

The utility model relates to a battery production technical field especially relates to a but exhaust formula cover plate that battery water bath becomes usefulness.

Background

In the production process of the lead storage battery water bath formation, a cover sheet matched with the type is often placed on the battery to block acid mist, and the cover sheet is not removed until the whole water bath formation process is finished. However, in the water bath formation process, the battery is charged by the charger, and the battery generates a large amount of heat. In the later stage of charging, after the battery reaches the polarization voltage for water decomposition, the battery can generate a large amount of gas. The traditional cover plate is closed, so in the production process, along with the rise of the temperature of the battery and the increase of gas evolution quantity, after the hydrogen and the oxygen are mixed to reach certain air pressure, acid liquor overflows to form a conduction loop to generate the battery detonation phenomenon. In addition, the difference of the liquid injection holes of the battery cells of each model leads to different water consumption of the cells in the formation process, so that the acid density of the battery cells before acid pouring has certain difference, individual cells after acid pouring fall behind, and the service life of the battery is shortened due to the falling behind of the cells in the actual use process.

The invention with the publication number of CN111342158A discloses an acidification forming method of a storage battery without acid pumping, wherein the size of a turnover cover 5 is matched with a cover plate groove 2, and the turnover cover 5 is placed in the cover plate groove 2 when in use. In order to avoid that the safety valve 3 is upwards jacked up by the internal air pressure impact of the storage battery 1 in the formation process, so that the turnover cover 5 is also jacked up, the turnover cover 5 is fixedly bound with the storage battery 1 by the rubber band 7, and thus the turnover cover 5 can be tightly pressed on the safety valve 3, and the safety valve 3 is prevented from being jacked up and falling off by the air pressure. An observation hole 6 is arranged on the turnover cover 5 corresponding to each safety valve 4; after the internalization is completed, the storage battery 1 is kept stand, and then the safety valve 4 is observed to be in a complete adsorption state through the observation hole 6, so that the storage battery is qualified. The problems of acid mist diffusion and gas evolution in the formation process are not considered in the technical scheme.

SUMMERY OF THE UTILITY MODEL

The utility model provides a but the exhaust formula cover plate that battery water bath formation used to the above-mentioned not enough that exists among the prior art.

The utility model provides a but storage battery water bath becomes exhaust formula cover plate of usefulness, the lid top surface of battery have a cover plate groove, and cover plate tank bottom surface is equipped with the acid filling hole that communicates with the battery inner chamber, but the exhaust formula cover plate is horizontal triangular prism shape structure, the inside cavity of triangular prism, and one of them side sets up for the opening, and open-ended side cooperation is down put into during the use in the cover plate groove, a plurality of exhaust holes have been seted up to another side of triangular prism.

The exhaust hole is 5 ~ 9 that set up for one row interval, and the aperture of exhaust hole is 10 ~ 20 mm.

The height of the exhaust hole on the transverse triangular prism is not less than half of the height of the transverse triangular prism.

And an air filter disc is arranged at the exhaust hole. The water repellency contact angle of the air filter is not less than 90 degrees, and the air permeability pressure is 100-300 Pa. But exhaust formula cover plate has the exhaust hole post of outside extension in exhaust hole department, and the centre of exhaust hole post is equipped with the exhaust hole, the oral area of exhaust hole post is equipped with and is used for holding the holding tank of air filter, the internal diameter of holding tank are greater than the internal diameter in exhaust hole, still the cover is equipped with the block on the exhaust hole post, and the middle part of block has the gas that supplies to see through the air filter and outwards discharges dodges the hole, the internal diameter of dodging the hole is less than the diameter of air filter.

The material of the air-dischargeable cover plate is polytetrafluoroethylene.

The utility model discloses but exhaust formula cover plate is used for the battery water bath to become, through designing into the triangular prism shape structure with the exhaust formula cover plate, two lateral walls can be used to the condensation backward flow of vapor, and the exhaust hole can be used to exhaust the pressure release.

Drawings

Fig. 1 is a schematic structural view of the exhaust type cover plate of the present invention.

Fig. 2 is a schematic view of the structure at the exhaust hole.

Detailed Description

As shown in fig. 1 and 2, an exhaust formula cover plate 1 that battery water bath becomes usefulness for the battery water bath becomes, the lid top surface of battery has the cover plate groove, cover plate tank bottom surface is equipped with the acid injection hole with battery inner chamber intercommunication, exhaust formula cover plate 1 is horizontal triangular prism shape structure, the inside cavity of triangular prism, and one of them side sets up for the opening, during the use open-ended side cooperates downwards to put into the cover plate groove of battery, a plurality of exhaust holes 2 have been seted up to another side of triangular prism. When the battery cover plate is placed in the state shown in figure 1, the bottom surface of the air-dischargeable cover plate 1 is one side with an opening, the other two inclined top surfaces and the two side surfaces are of closed structures, an air exhaust hole 2 is arranged on one inclined top surface, and the size of the bottom surface is just matched with the size of a cover plate groove of a battery when the battery cover plate is used.

The material of formula cover plate 1 that can exhaust is polytetrafluoroethylene, and the hydrophobic material of polytetrafluoroethylene becomes behind the formula cover plate 1 that can exhaust that the formation in-process electrolysis produced vapor meets hydrophobic material, but vapor rapid condensation, backward flow can improve the uniformity that the unit lattice water consumed, make the acid density difference of battery unit lattice diminish.

Exhaust hole 2 is 5 ~ 9 that set up for one row interval, and the aperture of exhaust hole 2 is 10 ~ 20 mm. The height of the exhaust hole 2 arranged on the horizontal triangular prism is not less than half of the height of the horizontal triangular prism. But two slope top surfaces of exhaust formula cover plate 1 can be used for the condensation backward flow of vapor, so, exhaust hole 2 sets up the height and suitably highly a little, can reduce from the liquid drop that the top flows down and enter into exhaust hole 2 department, simultaneously, the air current upwards walks during the exhaust, also makes things convenient for exhaust hole 2 to exhaust.

The exhaust hole 2 is provided with an air filter 3. The water repellency contact angle of the air filter 3 is not less than 90 degrees, and the air permeability pressure is 100 Pa-300 Pa. The material of the air filter 3 can be a microporous PTFE membrane or a polypropylene foaming air filter.

As shown in fig. 2, formula of can exhausting cover plate 1 has exhaust hole post 4 of outside extension at exhaust hole department 2, the centre of exhaust hole post 4 is equipped with exhaust hole 2, the oral area of exhaust hole post 4 is equipped with the holding tank that is used for holding air filter 3, the internal diameter of holding tank is greater than the internal diameter of exhaust hole 2, still the cover is equipped with block 5 on the exhaust hole post 4, the middle part of block 5 has the hole 6 of dodging that supplies to see through the gas of air filter 3 outwards discharges, the internal diameter of dodging hole 6 is less than the diameter of air filter 3. Be equipped with ring channel 8 on the outer peripheral face of exhaust hole post 4, be equipped with bulge loop 7 with ring channel 8 complex on the inside wall of block 5, through the cooperation of bulge loop 7 with ring channel 8, help block 5 to assemble on exhaust hole post 4.

The utility model discloses but exhaust formula cover plate 1 is arranged in when the battery water bath becomes, and the cover plate that replaces the battery is placed in the cover plate groove.

Claims

1. The utility model provides a but storage battery water bath becomes exhaust formula cover plate of usefulness, the lid top surface of battery have a cover plate groove, and cover plate tank bottom surface is equipped with the acid filling hole that communicates with the battery inner chamber, its characterized in that, but the exhaust formula cover plate is horizontal triangular prism shape structure, the inside cavity of triangular prism, and one of them side sets up for the opening, and open-ended side cooperation is down put into during the use in the cover plate groove, a plurality of exhaust holes have been seted up to another side of triangular prism.

2. The ventable cover sheet of claim 1 wherein said vent holes are 5 to 9 spaced in a row, the hole diameter of the vent hole being 10 to 20 mm.

3. The ventable coverslip of claim 1, wherein the vent is disposed on the transverse triangular prism at a height not less than half the height of the transverse triangular prism.

4. The ventable cover sheet of claim 1 wherein an air filter is positioned at the vent opening.

5. The ventable cover sheet of claim 4, wherein said filter sheet has a water repellency contact angle of not less than 90 ° and a gas permeation pressure of 100 to 300 Pa.

6. The exhaust type cover plate according to claim 4, wherein the exhaust type cover plate has an exhaust hole column extending outward at the exhaust hole, the exhaust hole is arranged in the middle of the exhaust hole column, a holding groove for holding the air filter is arranged at the mouth of the exhaust hole column, the inner diameter of the holding groove is larger than the inner diameter of the exhaust hole, a cap is further sleeved on the exhaust hole column, an avoiding hole for allowing the gas penetrating through the air filter to be discharged outward is arranged in the middle of the cap, and the inner diameter of the avoiding hole is smaller than the diameter of the air filter.

7. The ventable cover sheet of claim 1 wherein the material of the ventable cover sheet is polytetrafluoroethylene.