CN210893571U

CN210893571U - Alkaline battery sealant sealing performance testing device

Info

Publication number: CN210893571U
Application number: CN201921845612.5U
Authority: CN
Inventors: 常海涛; 钟晓桥
Original assignee: Fujian Nanping Nanfu Battery Co Ltd
Current assignee: Fujian Nanping Nanfu Battery Co Ltd
Priority date: 2019-10-30
Filing date: 2019-10-30
Publication date: 2020-06-30
Anticipated expiration: 2029-10-30

Abstract

The utility model provides a testing arrangement of sealed performance of alkaline cell fluid sealant, including water storage device, water pump, first ooff valve, manometer and the airtight container that communicates the setting in proper order, the airtight container mainly comprises jar body and lid, and the last border of jar body outwards extends and forms the ring chimb, and mechanical fixation between lid and the ring chimb, and scribble around jar body upper end opening on the contact surface of lid and jar body and establish a round of alkaline cell fluid sealant, the middle part of the lid above the appearance chamber of jar body is equipped with the gas vent, and the gas vent department is provided with the second ooff valve; when the sealant is in work, the first switch valve, the second switch valve and the water pump are controlled to inject water into the closed container and pressurize the closed container, when the pointer of the pressure gauge indicates a set pressure value, the first switch valve and the water pump are closed, the closed container is stood, whether the pointer on the pressure gauge changes during the standing period is observed, if the pointer changes, the sealing performance of the sealant for the alkaline battery is poor, and if the pointer keeps unchanged, the sealing performance of the sealant for the alkaline battery is good.

Description

Alkaline battery sealant sealing performance testing device

Technical Field

The utility model relates to a machining equipment field indicates a sealed sealing performance's of alkaline cell testing arrangement very much.

Background

Battery leakage is fatal to alkaline batteries. The reasons for the leakage of the battery are comprehensive, the leakage of the sealing position caused by mechanical reasons and the leakage of the sealing position caused by physical and chemical factors in the electrode process exist, the method for preventing the leakage of the battery is also diversified, and the method for blocking the capillary pipeline between the inner wall of the flaring opening of the steel shell of the battery and the sealing ring by adopting the sealing gum is a very powerful method.

The existing production process of the alkaline battery comprises the following production procedures: making a positive electrode ring → inserting the positive electrode ring → coating sealant → inserting an isolation tube → injecting electrolyte → absorbing electrolyte → injecting negative electrode material → sealing. The step of making the positive electrode ring is to make the positive electrode ring by adopting positive electrode material slurry through the working procedures of pressing ring, drying and the like; the step of coating the sealant is to coat the sealant on the inner wall of the flaring opening of the battery steel shell by adopting a sealant coating machine; inserting an isolation tube into the battery steel shell by adopting an isolation tube inserting machine; in the step of injecting the electrolyte, an electrolyte injector is adopted to inject a small amount of electrolyte into the cavity of the inner cylinder of the isolation paper on the inner layer of the isolation element; in the electrolyte absorption step, an electrolyte absorption machine is adopted to enable all the electrolyte in the inner cylinder cavity of the inner layer isolation paper of the isolation element to permeate into the isolation element and the anode ring; injecting a negative electrode material (namely zinc paste) into the inner cylinder cavity of the isolation paper on the inner layer of the isolation element by adopting a negative electrode material injector; the sealing step is to encapsulate the assembled negative electrode current collector and the sealing ring (the sealing ring is sleeved outside the negative electrode current collector) into the flaring opening of the battery steel shell through a sealing machine, the sealing ring is contacted with the sealing glue on the inner wall of the flaring opening of the battery steel shell, the sealing of a capillary pipeline between the inner wall of the flaring opening of the battery steel shell and the sealing ring is realized through the sealing glue, meanwhile, the lower end of the negative electrode current collector is inserted into the negative electrode material, and the sealing ring isolates the positive electrode (namely the positive electrode ring) from the negative electrode (namely the negative electrode material and the negative electrode current collector).

The sealing performance of the sealant is directly related to the liquid leakage prevention performance of the battery. However, the existing battery manufacturing enterprises are often lack of rapid inspection of the sealing performance of the sealant, and the sealing performance of the sealant is often inspected by placing the manufactured battery in an environment with the temperature of 60 ℃ and the humidity of 90% for a long time after the battery is manufactured. Such a method for checking the sealing performance of the sealant is easy to cause unnecessary waste in labor cost, raw material cost and time cost.

Disclosure of Invention

An object of the utility model is to provide a sealed sealing performance's of alkaline cell testing arrangement.

A testing device for sealing performance of alkaline battery sealant comprises a water storage device, a water pump, a first switch valve, a pressure gauge and a closed container which are sequentially communicated, wherein the closed container mainly comprises a tank body and a cover body, the upper edge of the tank body extends outwards to form a circular convex edge, the cover body and the circular convex edge are mechanically fixed, a circle of alkaline battery sealant is coated on the contact surface of the cover body and the tank body around an opening at the upper end of the tank body, an exhaust port is arranged in the middle of the cover body above a containing cavity of the tank body, and a second switch valve is arranged at the exhaust port;

when the device works, the first switch valve and the second switch valve are both opened, the water pump is started, water is injected into the closed container, when the closed container is full of water, the second switch valve is closed, the first switch valve is continuously kept opened, the water pump is in a starting state, the closed container is pressurized, when the pointer of the pressure gauge indicates a set pressure value, the first switch valve and the water pump are closed, the closed container is stood, whether the pointer on the pressure gauge changes during the standing period is observed, if the pointer changes, the sealing performance of the alkaline battery sealant is poor, and if the pointer keeps unchanged, the sealing performance of the alkaline battery sealant is good.

The utility model simulates an application structure of alkaline battery sealant, namely a closed container, and capillary pipelines still exist after the tank body and the cover body of the closed container are mechanically fixed, and the alkaline battery sealant can block the capillary pipelines; and, water storage device, water pump, first ooff valve, the manometer through intercommunication setting in proper order pressurizes to airtight container to through observing the sealed sealing performance that the sealed glue of alkaline battery is tested to the change of pointer on the manometer during stew, make the utility model discloses can test the sealed sealing performance of the sealed glue of alkaline battery very first time (before the rubber coating of battery steel casing promptly), avoid making the unnecessary loss in cost of labor, raw materials cost and the time cost that the sealed good sealing performance who finds the sealed glue of alkaline battery brought after the battery.

Preferably, the tank body is a stainless steel tank body made of the same material as the battery steel shell, and the cover body is a rubber cover body made of the same material as the battery sealing ring, so that the structure can completely simulate the structure for sealing the battery steel shell and the alkaline battery sealing ring.

Preferably, be provided with first check valve on the water pipe between water pump and the first ooff valve, be provided with the second check valve on the water pipe between water storage device and the water pump, can effectively avoid rivers refluence.

Preferably, a plurality of first through holes are formed in the circumference of the circular convex edge, a plurality of second through holes aligned with the first through holes one by one are formed in the circumference of the cover body, the bolt penetrates through the first through holes and the second through holes, and the locking nut is arranged at the tail end of the bolt, so that the circular convex edge and the cover body are mechanically fixed.

Drawings

Fig. 1 is a schematic structural diagram of a device for testing the sealing performance of alkaline battery sealant according to the present invention, wherein the sealed container is a cross-sectional view;

fig. 2 is a schematic bottom view of the cover of the present invention;

fig. 3 is a schematic top view of the tank of the present invention.

Detailed Description

The embodiments of the present invention will now be described in detail with reference to the accompanying drawings:

as shown in fig. 1, the device for testing the sealing performance of the alkaline battery sealant comprises a water storage device 10, a water pump 20, a first switch valve 30, a pressure gauge 40 and a closed container 50 which are sequentially communicated, wherein the closed container 50 mainly comprises a tank body 51 and a cover body 52, the upper edge of the tank body 51 extends outwards to form a circular convex edge 511, the cover body 52 and the circular convex edge 53 are mechanically fixed, a circle of alkaline battery sealant 53 is coated on the contact surface of the cover body 52 and the tank body 51 around the opening at the upper end of the tank body 51, an exhaust port 521 is arranged in the middle of the cover body 52 above the accommodating cavity of the tank body 51, and a second switch valve 60 is arranged at the exhaust port 521;

when the alkaline battery sealant is in work, the first switch valve 30 and the second switch valve 60 are both opened, the water pump 20 is started, water is filled into the closed container 50, when the closed container 50 is full of water, the second switch valve 60 is closed, the first switch valve 30 is continuously kept opened, the water pump 20 is in a starting state, the closed container is pressurized, when the pointer of the pressure gauge 40 indicates a set pressure value, the first switch valve 30 and the water pump 20 are closed, the closed container is stood, whether the pointer on the pressure gauge 40 changes during the standing period is observed, if the pointer changes, the alkaline battery sealant has poor sealing performance, and if the pointer keeps unchanged, the alkaline battery sealant has good sealing performance.

The utility model simulates an application structure of alkaline battery sealant, namely a closed container 50, capillary pipelines still exist between a tank body 51 and a cover body 52 of the closed container 50 after mechanical fixation, and the alkaline battery sealant 53 can plug the capillary pipelines; and, water storage device 10, water pump 20, first ooff valve 30, manometer 40 through communicate the setting in proper order pressurize to airtight container 50 to through observing the change of the pointer on the manometer 40 during stewing test alkaline battery sealed sealant 53's sealing performance, make the utility model discloses can test alkaline battery sealed sealant 53's sealing performance the very first time (before the rubber coating of battery steel casing promptly), avoid making the unnecessary loss in cost of labor, raw materials cost and the time cost that finds alkaline battery sealed sealant 53's the not good sealing performance after the battery.

Preferably, the tank body 51 is a stainless steel tank body made of the same material as the battery steel shell, and the cover body 52 is a rubber cover body made of the same material as the battery sealing ring, so that the structure can completely simulate the structure for sealing the battery steel shell and the sealing ring. Of course, the tank 51 and the cover may be both made of stainless steel.

Preferably, as shown in fig. 1, a first check valve 70 is disposed on a water pipe between the water pump 20 and the first switch valve 30, and a second check valve 80 is disposed on a water pipe between the water storage device 10 and the water pump 20, so as to effectively prevent water from flowing backwards.

Preferably, referring to fig. 1 to 3, a plurality of first through holes 5110 are formed on the circumference of the circular flange 511, a plurality of second through holes 520 aligned with the first through holes 5110 one by one are formed on the circumference of the cover 52, and the bolt 90 passes through the first through holes 5110 and the second through holes 520 and is provided with the lock nut 100 at the end, so as to achieve the mechanical fixation between the circular flange 511 and the cover 52. Of course, the cover 52 and the ring flange 511 may be mechanically fixed by other common mechanical fixing means such as a robot clamping device.

Claims

1. The utility model provides a sealed sealing performance's of alkaline cell sealant testing arrangement which characterized in that: including water storage device, water pump, first ooff valve, manometer and the sealed container that communicates the setting in proper order, the sealed container mainly comprises jar body and lid, and the last border of jar body outwards extends and forms the ring chimb, and mechanical fixed between lid and the ring chimb, and scribbles around jar body upper end opening on the contact surface of the body and establish round alkaline cell sealed glue, the middle part of the lid of the appearance chamber top of the jar body is equipped with the gas vent, and gas vent department is provided with the second ooff valve.

2. The alkaline cell sealant sealing performance testing device of claim 1, wherein: the tank body is a stainless steel tank body made of the same material as the battery steel shell, and the cover body is a rubber cover body made of the same material as the battery sealing ring.

3. The alkaline cell sealant sealing performance testing device of claim 1, wherein: a first one-way valve is arranged on a water pipe between the water pump and the first switch valve, and a second one-way valve is arranged on a water pipe between the water storage device and the water pump.

4. The alkaline cell sealant sealing performance testing device of claim 1, wherein: a plurality of first through holes are formed in the circumference of the circular convex edge, a plurality of second through holes aligned with the first through holes one by one are formed in the circumference of the cover body, and the bolt penetrates through the first through holes and the second through holes and is provided with a locking nut at the tail end.