CN215525906U

CN215525906U - Probe assembly for cylindrical battery cell opening forming equipment

Info

Publication number: CN215525906U
Application number: CN202120898529.5U
Authority: CN
Inventors: 龚青林; 毛书和
Original assignee: Shanghai Electric Guoxuan New Energy Technology Suzhou Co ltd
Current assignee: Shanghai Electric Guoxuan New Energy Technology Suzhou Co ltd
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2022-01-14
Anticipated expiration: 2031-04-28

Abstract

The utility model discloses a probe assembly for cylindrical battery cell opening formation equipment, which comprises a probe mounting seat, a probe body which is movably arranged on the probe mounting seat up and down, a protection piece which is fixed on the probe body and is arranged close to a tip, and a return spring which is sleeved on the probe body, wherein one end of the return spring abuts against the probe mounting seat, and the other end of the return spring abuts against the protection piece. The utility model can effectively prevent the moving part of the probe from being polluted, ensure the probe to rebound smoothly and reduce the maintenance cost of the opening formation equipment.

Description

Probe assembly for cylindrical battery cell opening forming equipment

[ technical field ] A method for producing a semiconductor device

The utility model belongs to the technical field of lithium battery production equipment, and particularly relates to a probe assembly for cylindrical battery cell opening formation equipment.

[ background of the utility model ]

With the continuous popularization of lithium ion battery applications, such as lithium ion products of pure electric logistics vehicles, shared light vehicles and the like, the requirements on the safety performance and the energy ratio of batteries used by the products are very high, and meanwhile, the requirements on the production links of the batteries are also high, the requirement on the primary qualification rate of the products is particularly high under the condition of ensuring the continuous supply of the products in the market, and the primary qualification rate of the products is very important for ensuring the good state of production equipment besides the products. An opening formation process is needed in the production process, and due to the volatilization or overflow phenomenon of electrolyte in the working process of general opening formation equipment, the volatilized or overflowed electrolyte can splash to the telescopic movement part of the probe, so that the movement part of the probe is polluted, after the time is long, the probe rebounds up and down to cause problems, and the phenomenon of no rebounding occurs, so that the problems of high production rework rate, low working efficiency, high maintenance cost and the like are caused; and has the problems of poor working environment, difficult equipment maintenance, high failure rate and the like,

therefore, there is a need to provide a new probe assembly for a cylindrical cell opening formation device to solve the above problems.

[ Utility model ] content

The utility model mainly aims to provide a probe assembly for cylindrical battery cell opening formation equipment, which can effectively prevent a probe moving part from being polluted, ensure the probe to rebound smoothly and reduce the maintenance cost of the opening formation equipment.

The utility model realizes the purpose through the following technical scheme: the utility model provides a cylinder electricity core is split and is become probe subassembly for equipment, its includes probe mount pad, upper and lower mobilizable setting probe body on the probe mount pad, fix on the probe body and be close to tip setting's protection piece, cover and establish on the probe body and one end support and hold the probe mount pad other end support and hold the reset spring of protection piece.

Further, the protection part comprises a sleeve part sleeved on the probe body and an umbrella-shaped protection cover arranged on the periphery of the sleeve part.

Further, the sleeve portion is in interference fit and sealing fit with the rod-shaped portion of the probe body.

Furthermore, the horn mouth of the umbrella-shaped protective cover faces downwards and is of a structure with a small upper part and a big lower part.

Further, the protection piece is an integrated fluororubber structure.

Compared with the prior art, the probe assembly for the cylindrical battery cell opening formation equipment has the beneficial effects that: by installing the protection piece, the relative position of the umbrella-shaped cover and the needle point of the probe body is always unchanged in the working process, the electrolyte volatilizes or overflows in the opening formation process, and the electrolyte is blocked from continuously spreading towards the direction of the probe installation seat under the action of the protection piece, so that the telescopic moving part of the probe body is not polluted; the service life of the probe body is prolonged, and the failure rate is reduced; meanwhile, the umbrella-shaped cover is disassembled and assembled, the cleaning and maintenance work is simple, and the maintenance difficulty and frequency are reduced; overall structure is simple, and the practicality is strong, the simple operation.

[ description of the drawings ]

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of a shield in an embodiment of the present invention;

the figures in the drawings represent:

the 100 cylindrical battery cell is opened and is formed into a probe assembly for equipment;

1, a probe mounting seat; 2, a probe body; 3-guard, 31-sleeve, 32-umbrella-shaped shield; 4, a return spring; 101 electric cores; 102 cell positive electrode; and 103, cell cathode.

[ detailed description ] embodiments

The first embodiment is as follows:

as shown in fig. 1-2, the present embodiment is a probe assembly 100 for a cylindrical battery cell opening formation device, which includes a probe mounting base 1, a probe body 2 movably disposed on the probe mounting base 1 up and down, a protection member 3 fixed on the probe body 2 and disposed near a tip, and a return spring 4 sleeved on the probe body 2 and having one end abutting against the probe mounting base 1 and the other end abutting against the protection member 3.

The guard 3 includes a sleeve portion 31 fitted over the probe body 2, and an umbrella-shaped protector 32 provided on the outer periphery of the sleeve portion 31. The sleeve portion 31 is in interference fit and seal fit with the rod-shaped portion of the probe body 2.

In the opening formation device, the probe assembly 100 needs to be connected to the positive electrode and the negative electrode of the battery cell 101, and therefore, two sets of the probe assembly 100 are provided, and are respectively in contact conduction with the positive electrode and the negative electrode of the battery cell 101. In the probe assembly used for being conducted with the electrode at the upper end of the battery core 101, the horn mouth of the umbrella-shaped protective cover 32 faces downwards and is of a structure with a small upper part and a large lower part, when electrolyte volatilizes or overflows from the battery core 101, the electrolyte can be blocked by the umbrella-shaped protective cover 32, and the electrolyte is prevented from continuously spreading upwards to a part where the probe body 2 and the probe mounting seat 1 are matched to move; a probe assembly for switching on with electric core 101 lower extreme electrode, the horn mouth of umbelliform protection casing 32 is big end down, is big end down's structure, when electric core 101 electrolyte volatilizees or spills over, can block through umbelliform protection casing 32, prevents that electrolyte from continuing to drip downwards to probe body 2 and the 1 cooperation motion part of probe mount pad.

The protection part 3 is an integrated fluororubber structural part and has certain plasticity, so that the probe body 2 can be conveniently and quickly taken down and cleaned, and the convenience in maintenance is improved.

When the embodiment is applied, the protection piece 3 is installed in cooperation with the needle point of the probe body 2 to realize the reciprocating work of the opening formation equipment with the telescopic action of the probe body 2, the relative position of the protection piece 3 and the needle point of the probe body 2 is always unchanged in the process, and meanwhile, the relative position of the protection piece 3 and the battery cell 101 in the contact process is also always unchanged; in the opening formation process, the electrolyte volatilizes or overflows, the protection piece 3 at the positive electrode 102 end of the battery cell is inversely arranged in the needle point direction of the probe body 2, and the electrolyte is prevented from continuously spreading to the direction of the probe mounting seat 1, so that the telescopic moving part of the probe body 2 is not polluted; cell negative pole 103 end protection piece 3 is installed along the 2 needle point directions of probe body, and the excessive electrolyte material that overflows can flow toward cell negative pole 103 direction under the influence of gravity, and protection piece 3 can shunt the some electrolyte that flows to equipment hydrops dish this moment, blocks that electrolyte continues to stretch toward 1 direction of probe mount pad.

In the probe assembly 100 for the cylindrical battery cell opening formation device of the embodiment, by installing the protection piece, the relative position between the umbrella-shaped cover and the needle point of the probe body is always unchanged in the working process, and the electrolyte is prevented from continuously spreading towards the direction of the probe mounting seat under the action of the protection piece due to the volatilization or overflow phenomenon of the electrolyte in the opening formation process, so that the telescopic moving part of the probe body is not polluted; the service life of the probe body is prolonged, and the failure rate is reduced; meanwhile, the umbrella-shaped cover is disassembled and assembled, the cleaning and maintenance work is simple, and the maintenance difficulty and frequency are reduced; overall structure is simple, and the practicality is strong, the simple operation.

What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a cylinder electricity core is opened and is become probe assembly for equipment which characterized in that: the probe mounting structure comprises a probe mounting seat, a probe body which is movably arranged on the probe mounting seat up and down, a protection piece which is fixed on the probe body and is arranged close to the tip end, and a return spring which is sleeved on the probe body and one end of which abuts against the probe mounting seat and the other end of which abuts against the protection piece.

2. The cylindrical cell opening formation probe assembly for equipment of claim 1, wherein: the protection piece comprises a sleeve part sleeved on the probe body and an umbrella-shaped protection cover arranged on the periphery of the sleeve part.

3. The cylindrical cell opening formation probe assembly for equipment of claim 2, wherein: the sleeve portion is in interference fit and sealing fit with the rod-shaped portion of the probe body.

4. The cylindrical cell opening formation probe assembly for equipment of claim 2, wherein: the horn mouth of the umbrella-shaped protective cover faces downwards and is of a structure with a small upper part and a big lower part.

5. The cylindrical cell opening formation probe assembly for equipment of claim 1, wherein: the protection piece is an integrated fluororubber structural piece.