CN215896545U

CN215896545U - Sealing structure of bottom hole of storage battery

Info

Publication number: CN215896545U
Application number: CN202121567506.2U
Authority: CN
Inventors: 胡曙; 熊正林; 李焙; 杨滔; 杨富麟; 张恒山
Original assignee: Hubei Nandu New Energy Research Co ltd; Wuhan Nandu New Energy Technology Co ltd; Zhejiang Narada Power Source Co Ltd
Current assignee: Hubei Nandu New Energy Research Co ltd; Wuhan Nandu New Energy Technology Co ltd; Zhejiang Narada Power Source Co Ltd
Priority date: 2021-07-09
Filing date: 2021-07-09
Publication date: 2022-02-22
Anticipated expiration: 2031-07-09

Abstract

The utility model discloses a sealing structure of a bottom hole of a storage battery, which comprises the storage battery, a bottom plug assembled at the bottom hole and a bottom cover sleeved outside the bottom plug, wherein the bottom hole is formed in the bottom of the storage battery, and sealant is filled in the bottom cover. Aiming at the technical problems that the sealing structure of the existing storage battery is inconvenient to assemble and has potential safety hazards, the utility model provides the sealing structure of the bottom hole of the storage battery, which can be used for assembling the sealing structure when the storage battery is placed in the forward direction, thereby effectively improving the safety during assembling.

Description

Sealing structure of bottom hole of storage battery

Technical Field

The utility model relates to the technical field of storage batteries, in particular to a sealing structure of a bottom hole of a storage battery.

Background

And after the formation of the battery is finished, taking down the acid pot, removing residual acid in the battery, laterally placing the battery, and installing a bottom plug. After the battery is cleaned, a safety valve is covered, an upper cover plate is sealed, the battery is turned over, epoxy glue is applied to the bottom plug, and the epoxy glue is cured at the temperature of not higher than 40 ℃, so that the bottom hole is sealed. When the battery is normally used, the battery is turned over, and the pole is upward.

The main defects of the existing scheme are as follows:

1) the operation is more complicated, need to overturn the battery, and the battery becomes the back and has electricity, and the terminal short circuit risk that faces down increases, places unstably.

2) The cell is sealed and the curing of the glue does not raise the temperature, otherwise it is prone to bulging.

3) During the curing process, gas is easy to leak from the bottom plug, so that the sealing performance of the epoxy glue seal is poor.

4) During the curing process, the battery cannot be subjected to other operations such as voltage detection and the like, and the production efficiency is influenced.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved by the utility model

Aiming at the technical problems that the sealing structure of the existing storage battery is inconvenient to assemble and has potential safety hazards, the utility model provides the sealing structure of the bottom hole of the storage battery, which can be used for assembling the sealing structure when the storage battery is placed in the forward direction, thereby effectively improving the safety during assembling.

2. Technical scheme

In order to solve the problems, the technical scheme provided by the utility model is as follows:

the utility model provides a seal structure of battery bottom hole, includes the battery, the bottom of battery is equipped with the bottom hole, still includes the end stopper of assembling in bottom hole department to and the bottom outside the end stopper is located to the cover, the bottom intussuseption is filled with sealed glue.

Optionally, a plurality of supporting legs are arranged at the bottom of the storage battery, and the bottom end of the bottom cover and the bottom ends of the supporting legs are located on the same horizontal plane.

Optionally, the top of the storage battery is provided with a safety valve hole, and a safety valve is mounted at the safety valve hole.

Optionally, the bottom of the bottom plug is provided with a groove opened towards the lower end.

Optionally, the bottom cover is of a cylindrical structure with an open upper end and a hollow interior.

Optionally, the edge of the bottom cover is provided with a chamfer.

Optionally, the sealant is an epoxy adhesive.

Optionally, the bottom cover is made of ABS plastic.

3. Advantageous effects

Compared with the prior art, the technical scheme provided by the utility model has the following beneficial effects:

(1) in the process of sealing the bottom hole of the storage battery by using the epoxy glue, the storage battery is placed in the forward direction, other operations are not influenced, and the production efficiency is high; the temperature can be increased to accelerate the curing of the epoxy glue, and the production efficiency is further improved; in the epoxy glue curing process, gas is not easy to leak from the glue seal, and the sealing quality is not influenced; the battery does not need to be turned over repeatedly, and does not have the risk of short circuit when the terminals face downwards.

Drawings

Fig. 1 is a schematic structural diagram of a sealing structure of a bottom hole of a storage battery according to an embodiment of the present invention;

FIG. 2 is a partial schematic view of FIG. 1 at A;

1. a storage battery; 2. a bottom hole; 3. a bottom plug; 4. a bottom cover; 5. sealing glue; 6. supporting legs; 7. a safety valve bore; 8. and (4) a groove.

Detailed Description

For a further understanding of the present invention, reference is made to the following detailed description taken in conjunction with the accompanying drawings 1-2.

With reference to fig. 1 and 2, the sealing structure of the bottom hole of the storage battery of the embodiment comprises a storage battery 1, the bottom of the storage battery 1 is provided with a bottom hole 2, and further comprises a bottom plug 3 assembled at the bottom hole 2 and a bottom cover 4 sleeved outside the bottom plug 3, a sealant 5 is filled in the bottom cover 4, the bottom cover 4 is of a cylindrical structure with an opening at the upper end and hollow inside, the bottom cover 4 is made of ABS plastic, the sealant 5 is epoxy glue, and the top of the storage battery 1 is provided with a safety valve hole 7 and a safety valve assembled at the safety valve hole 7.

The installation steps of the sealing structure of the bottom hole of the storage battery are as follows: after the battery formation is finished, after the residual acid in the battery is removed, the bottom plug 3 is installed firstly, the upper safety valve is installed again, the battery is cleaned and dried, the bottom cover 4 larger than the bottom hole 2 is prepared and placed on a proper position, a proper amount of epoxy glue is injected into the bottom cover 4, the battery bottom hole 2 is plugged into the bottom cover 4 filled with the epoxy glue, the battery faces upwards, and the epoxy glue is solidified.

In the process of sealing the bottom hole of the storage battery by using the epoxy glue, the epoxy glue is supported by the bottom cover 4, the storage battery is placed in the forward direction, other operations are not influenced, and the production efficiency is high; the temperature can be increased to accelerate the curing of the epoxy glue, and the upper safety valve can be taken out if necessary to prevent the battery from bulging at high temperature, so that the production efficiency is further improved; in the epoxy glue curing process, gas is not easy to leak from the glue seal, and the sealing quality is not influenced; the battery does not need to be turned over repeatedly, and does not have the risk of short circuit when the terminals face downwards.

As an alternative of the present invention, the bottom of the storage battery 1 is provided with a plurality of support legs 6, and the bottom end of the bottom cover 4 and the bottom ends of the support legs 6 are in the same horizontal plane, so that when the battery is placed in the forward direction, the upper end surface of the bottom cover 4 abuts against the bottom surface of the storage battery 1 to ensure the extrusion force on the epoxy glue, thereby improving the sealing effect.

As an alternative of the present invention, the bottom of the bottom plug 3 is provided with a groove 8 which is open towards the lower end, the epoxy glue in the bottom cover 4 can enter the bottom plug 3 through the groove 8, and volume expansion can occur during the epoxy glue curing process, so that the side wall of the bottom plug 3 is subjected to an outward acting force to improve the sealing matching effect with the bottom hole 2.

As an alternative of the present invention, in order to facilitate the assembly personnel to take the bottom cover 4, the edge of the bottom cover 4 is provided with a chamfer.

The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the utility model, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the utility model.

Claims

1. A seal structure of battery bottom hole which characterized in that: the novel storage battery comprises a storage battery, wherein a bottom hole is formed in the bottom of the storage battery, the novel storage battery further comprises a bottom plug assembled at the bottom hole, and a bottom cover sleeved outside the bottom plug, and sealant is filled in the bottom cover.

2. A sealing structure of a battery bottom hole according to claim 1, characterized in that: the bottom of the storage battery is provided with a plurality of supporting legs, and the bottom end of the bottom cover and the bottom ends of the supporting legs are positioned on the same horizontal plane.

3. A sealing structure of a battery bottom hole according to claim 1, characterized in that: the top of the storage battery is provided with a safety valve hole and a safety valve assembled at the safety valve hole.

4. A sealing structure of a battery bottom hole according to claim 1, characterized in that: the bottom of the bottom plug is provided with a groove with an opening towards the lower end.

5. A sealing structure of a bottom hole of a secondary battery according to any one of claims 1 to 4, wherein: the bottom cover is of a cylindrical structure with an opening at the upper end and a hollow interior.

6. A sealing structure of a battery bottom hole according to claim 4, characterized in that: and a chamfer is arranged at the edge of the bottom cover.

7. A sealing structure of a bottom hole of a secondary battery according to any one of claims 1 to 4, wherein: the sealant is epoxy glue.

8. A sealing structure of a bottom hole of a secondary battery according to any one of claims 1 to 4, wherein: the bottom cover is made of ABS plastic.