CN-224217576-U - Battery protection closing cap

Abstract

The utility model belongs to the technical field of lead acid battery, specifically, relate to a battery protection closing cap, including square battery case and assorted closing cap body, the top of battery case is equipped with the opening, and the center of closing cap body is equipped with opening assorted recess, and is equipped with seal assembly and two utmost point post subassemblies on the closing cap body, and this device's leakproofness is good, through setting up the sealing washer at the mounting hole inner wall, can effectively prevent that acid gas from leaking from the mounting hole along the utmost point post; the sealing strip at the edge of the sealing cover body, the matched sealing clamping groove, the screw holes and the screws further enhance the sealing performance between the sealing cover body and the battery box, greatly reduce the possibility of acid gas leakage inside the battery, protect the surrounding environment and parts and components, and improve the safety and reliability of the use of the battery.

Inventors

• ZHANG YINGCHAO
• FENG LIQIANG
• Di Yanchun
• GUO ZHI

Assignees

• 河南晶能电源有限公司

Dates

Publication Date

20260508

Application Date

20250630

Claims (5)

1. 1. The battery protection sealing cover comprises a square battery box and a matched sealing cover body, and is characterized in that an opening is formed in the top of the battery box, a groove matched with the opening is formed in the center of the sealing cover body, and a sealing assembly and two pole assemblies are arranged on the sealing cover body; The pole assembly comprises a pole and a mounting hole formed in the sealing cover body, an annular sealing groove is formed in the inner wall of the mounting hole, a matched sealing ring is arranged in the annular sealing groove, the lower end of the pole penetrates through the sealing ring to be in sealing and fixed connection with the sealing cover body, one end of the pole, which is positioned on the sealing cover body, is sleeved with a plurality of annular gaskets, the top end of the pole is provided with threads, and matched nuts are arranged on the threads; The sealing assembly comprises an upper annular sealing strip and a lower annular sealing strip which are respectively sleeved on the outer side face of the groove, one side, close to the outer side face of the groove, of the sealing cover body is fixedly connected with the sealing cover body, sealing clamping grooves matched with the annular sealing strip are formed in the side wall of the opening of the battery box, screw holes are correspondingly formed in the edge of the sealing cover body and the battery box, and screws are connected with the inner threads of the screw holes.
2. 2. The battery protection cover of claim 1, wherein the annular sealing strip is made of fluororubber.
3. 3. The battery protection cover of claim 1, wherein the annular sealing strip has a trapezoidal cross section.
4. 4. The battery protection cover of claim 1, wherein the pole assemblies are respectively arranged at opposite corners of the groove, and the annular gaskets are shock-absorbing rubber gaskets.
5. 5. The battery protection cover of claim 1, wherein the pole is a copper alloy pole.

Description

Battery protection closing cap Technical Field The utility model belongs to the technical field of lead-acid batteries, and particularly relates to a battery protection sealing cover. Background Lead-acid batteries are a chemical power source widely used in the fields of automobiles, electric vehicles, energy storage systems and the like. The lead-acid battery sealing cover is used as an important component of the battery and mainly plays roles in sealing the internal space of the battery, fixing the battery pole and isolating the internal and external environments of the battery. However, existing lead acid battery covers have some problems during actual use. On one hand, the traditional sealing structure of the sealing cover is not perfect enough, so that acid gas in the battery is easy to leak, the environment is polluted, parts around the battery are possibly corroded, and the service life of the battery is reduced. Therefore, there is a need to design a new lead acid battery cover to address the above-described issues. Disclosure of utility model In order to solve the technical problems, the utility model provides a new technical scheme: The utility model provides a battery protection closing cap, includes square battery case and assorted closing cap body, and the top of battery case is equipped with the opening, and the center of closing cap body is equipped with opening assorted recess, and is equipped with seal assembly and two utmost point post subassemblies on the closing cap body. The pole assembly comprises a pole and a mounting hole formed in the sealing cover body, an annular sealing groove is formed in the inner wall of the mounting hole, a matched sealing ring is arranged in the annular sealing groove, the lower end of the pole penetrates through the sealing ring to be sealed with the sealing cover body and fixedly connected with the sealing cover body, a plurality of annular gaskets are sleeved at one end of the pole, located on the sealing cover body, of the pole, threads are formed in the top end of the pole, and matched nuts are arranged on the threads. The sealing assembly comprises an upper annular sealing strip and a lower annular sealing strip which are respectively sleeved on the outer side face of the groove, one side, close to the outer side face of the groove, of the sealing cover body is fixedly connected with the sealing cover body, sealing clamping grooves matched with the annular sealing strip are formed in the side wall of the opening of the battery box, screw holes are correspondingly formed in the edge of the sealing cover body and the battery box, and screws are connected with the inner threads of the screw holes. Furthermore, the annular sealing strip is made of fluororubber, and the fluororubber has good acid resistance, high temperature resistance and sealing performance, and can effectively prevent acid gas from leaking from the mounting hole along the pole. Further, the cross section of annular sealing strip is trapezoidal, and the annular sealing strip of trapezium structure can cooperate with sealed draw-in groove better, strengthens sealed effect to can produce bigger elastic deformation when receiving the extrusion, improve sealed reliability. Further, the pole assembly is arranged at the opposite angles of the groove respectively, the annular gasket is a damping rubber gasket, and the damping rubber gasket can reduce damage to the pole when the battery box vibrates. Further, the pole is made of copper alloy materials, the copper alloy has good conductivity, a plurality of batteries are connected with each other through the pole, and the voltage of the batteries can be improved through series connection, so that the electric vehicle can travel farther, faster and more stably. The utility model also comprises other devices or components which can enable the battery protection sealing cover to be used normally, and the devices or components are all conventional technical means in the field. In addition, the sealing rings and screws which are not limited in the utility model adopt conventional technical means in the field. When the device is used, a battery polar plate and acid liquor are filled in a battery box, the lower end of a polar column is correspondingly connected with the polar plate, a mounting hole is corresponding to the polar column, a groove is corresponding to the opening, the sealing cover body is clamped on the battery box through an annular sealing strip and a sealing clamping groove, a screw hole is in threaded connection with a screw, and the sealing cover body is further fixed. The sealing device has the beneficial effects that the sealing performance is good, the sealing ring is arranged on the inner wall of the mounting hole, so that acid gas can be effectively prevented from leaking from the mounting hole along the pole, the annular sealing strip at the edge of the sealing cover body, the matched sealing clamping groove, the screw hole and t