CN201160108Y

CN201160108Y - Auxiliary device for formatting aluminum-case battery

Info

Publication number: CN201160108Y
Application number: CNU2008200441269U
Authority: CN
Inventors: 李中延; 范海波
Original assignee: Dongguan Mcnair New Power Co Ltd
Current assignee: Dongguan Mcnair New Power Co Ltd
Priority date: 2008-02-20
Filing date: 2008-02-20
Publication date: 2008-12-03
Anticipated expiration: 2018-02-20

Abstract

The utility model relates to an auxiliary device used for activating a battery with an aluminum casing, which comprises a vessel casing body, a containing cavity is arranged in the casing body, an apical spout used for being matched with a fluid charging hole in a sealed way is extended from the lower end of the casing body, and an air release valve used for releasing the air pressure in the battery is arranged at the upper end of the casing body; the air release valve comprises a convex column, a steel ball and a spring which are arranged at the upper end of the casing body, wherein the steel ball and the spring are embedded in a channel inside the convex column, the channel is communicated with the containing cavity, an air release opening is arranged at one side of the channel, the steel ball and the channel are closely matched in a sliding way, and the steel ball is propped against the spring and blocked between the containing cavity and the air release opening. By using the auxiliary device, on one hand, the electrolyte can be effectively avoided from flowing onto the battery casing body from the fluid charging hole to corrode the casing body and further affect the appearance, and on the other hand, the electrolyte loss is reduced to the utmost extent; moreover, the problem of air leakage when the battery is in negative pressure and vacuumized is also solved.

Description

Aluminum-shell battery changes into uses servicing unit

Technical field

The utility model relates to the field of batteries technology, refers in particular to a kind of aluminum-shell battery and changes into and use servicing unit.

Background technology

As everyone knows, the basic manufacturing process of aluminum-shell battery includes: make both positive and negative polarity, and--------change into the assembling of--partial volume---battery finishes drying both positive and negative polarity dress shell to inject electrolyte.Wherein, electrolyte injects in the battery case via a liquid injection hole usually, after having annotated liquid, this liquid injection hole is an opening-wide state, the gas that is produced when changing into can be taken out of part electrolyte by this liquid injection hole, and flow to corrosion cell shell on the battery container, influence the outward appearance of battery case, and cause electrolyte waste.

The utility model content

The utility model is at the defective of prior art existence, and main purpose provides a kind of aluminum-shell battery and changes into and use servicing unit.Electrolyte flowed out waste and corrosion cell shell when it can effectively avoid changing into.

For achieving the above object, the utility model adopts following technical scheme:

A kind of aluminum-shell battery changes into uses servicing unit, comprises a container casing, has a ccontaining cavity in this housing, and the lower end of housing is extended with one and is used for and the airtight sharp mouth that cooperates of liquid injection hole, and the upper end of housing is provided with a gas bleeder valve that is used to discharge the battery internal gas pressure.

Described gas bleeder valve comprises projection and steel ball and the spring that is arranged at the housing upper end, this steel ball and spring are flush-mounted in the interior passage of projection, this passage is communicated with aforementioned ccontaining cavity, one side of passage has a leakage port, this steel ball and this passage are airtight tight fit slidably, and steel ball relies on and is jammed on the spring between ccontaining cavity and the leakage port.

Be set with a sealing ring that is used to guarantee obturation effect between sharp mouth and the liquid injection hole on the described sharp mouth.

The utility model compared with prior art, its beneficial effect is, in the process that changes into of battery making, quality and fail safe for guaranteeing that battery is made are provided with a servicing unit.By using this servicing unit, can prevent effectively on the one hand that electrolyte from being flow to by liquid injection hole corrodes housing, influences outward appearance on the battery container, also reduced the loss of electrolyte on the other hand to greatest extent; And, also solved the disappointing problem of battery when negative pressure vacuumizes simultaneously.

Description of drawings

Fig. 1 is the sectional view of the utility model one embodiment;

Fig. 2 is the enlarged drawing of M position among Fig. 1;

Fig. 3 is the state diagram during the gas bleeder valve pressure release among Fig. 2.

The accompanying drawing identifier declaration:

10, container casing 11, ccontaining cavity

12, sharp mouth 13, projection

131, passage 132, leakage port

20, gas bleeder valve 21, steel ball

22, spring 30, battery cover board

31, liquid injection hole

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing and specific embodiment:

See figures.1.and.2 and be the utility model one most preferred embodiment, this servicing unit specifically includes a container casing 10, has a ccontaining cavity 11 in this housing 10, the lower end of housing 10 is extended with a sharp mouth 12, the upper end of housing 10 is provided with a gas bleeder valve 20, and this ccontaining cavity 11 is in communication with the outside by this point mouth 12 and gas bleeder valve 20.

Wherein, the external diameter of this point mouth 12 is just in time suitable with the aperture of the liquid injection hole 31 of battery cover board 30, point mouth 12 inserts in the liquid injection holes 31 seamless, is set with a silica gel sealing ring 40 on the sharp mouth 12, sealing circle 40 be used to locate and assurance and liquid injection hole 31 between sealing effectiveness.

This gas bleeder valve 20 comprises projection 13 and steel ball 21 and the spring 22 that is arranged at housing 10 upper ends, this steel ball 21 and spring 22 are flush-mounted in the passage 131 in the projection 13, this passage 131 is communicated with aforementioned ccontaining cavity 11, one side of passage 131 has a leakage port 132, this steel ball 21 and this passage 131 are airtight tight fit slidably, and steel ball 21 relies on and is jammed on the spring 22 between ccontaining cavity 11 and the leakage port 132.Can realize being communicated with/closure between leakage port 132 and the ccontaining cavity 11 by slip steel ball 21,22 on this spring plays the effect that reaction force is provided and resets.

During use, immediately with the sharp mouth 12 insertion liquid injection holes 31 of container, the degree of depth is between 1.5mm-2.5mm after battery has been annotated electrolyte.Thus, the part electrolyte that the gas that is produced when changing into is taken out of will be entered in the ccontaining cavity 11 of container by sharp mouth 12 automatically, can guarantee on the one hand that electrolyte can not flow to corrodes outward appearance on the battery case, also reduced the loss of electrolyte on the other hand to greatest extent.

Before changing into, this steel ball 21 is positioned at the below of leakage port 132, fills between ccontaining cavity 11 and leakage port 132, and the external world and ccontaining cavity volume 11 are isolated (with reference to Fig. 2).Change into finish after, battery will be put into the vacuum oven negative pressure and vacuumize, when reaching greater than the steel ball in the state final vacuum valve 20 of spring 22 reaction forces 21, pressure can upwards slide automatically, make leakage port 132 be communicated with (with reference to Fig. 3) with ccontaining cavity 11, gas in the ccontaining cavity 11 is discharged by leakage port 132, reaches the effect of negative pressure.When the air pressure in the ccontaining cavity 11 during less than the reaction force of spring 22, steel ball 21 is pushed to down automatically by spring 22 and is got back to the position (with reference to Fig. 2) of stopping up bleeder port 132.

Of the present utility model focusing on, in the process that changes into of battery making, quality and fail safe for guaranteeing that battery is made are provided with a servicing unit.By using this servicing unit, can prevent effectively on the one hand that electrolyte from being flow to by liquid injection hole corrodes housing, influences outward appearance on the battery container, also reduced the loss of electrolyte on the other hand to greatest extent; And, also solved the disappointing problem of battery when negative pressure vacuumizes simultaneously.

The above only is that a kind of aluminum-shell battery of the utility model changes into the preferred embodiment with servicing unit, is not that technical scope of the present utility model is imposed any restrictions.So every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any trickle modification, equivalent variations and modification that above embodiment did.

Claims

1, a kind of aluminum-shell battery changes into and uses servicing unit, it is characterized in that: comprise a container casing, have a ccontaining cavity in this housing, the lower end of housing is extended with one and is used for and the airtight sharp mouth that cooperates of liquid injection hole, and the upper end of housing is provided with a gas bleeder valve that is used to discharge the battery internal gas pressure.

2, aluminum-shell battery according to claim 1 changes into and uses servicing unit, it is characterized in that: described gas bleeder valve comprises projection and steel ball and the spring that is arranged at the housing upper end, this steel ball and spring are flush-mounted in the interior passage of projection, this passage is communicated with aforementioned ccontaining cavity, one side of passage has a leakage port, this steel ball and this passage are airtight tight fit slidably, and steel ball relies on and is jammed on the spring between ccontaining cavity and the leakage port.

3, aluminum-shell battery according to claim 1 changes into and uses servicing unit, it is characterized in that: be set with a sealing ring that is used to guarantee obturation effect between sharp mouth and the liquid injection hole on the described sharp mouth.