CN1051462A

CN1051462A - The battery that has sealing ring

Info

Publication number: CN1051462A
Application number: CN90105747A
Authority: CN
Inventors: 李福舆
Original assignee: JIANGNAN BATTERY FACTORY SUZHOU CITY
Current assignee: JIANGNAN BATTERY FACTORY SUZHOU CITY
Priority date: 1990-10-08
Filing date: 1990-10-08
Publication date: 1991-05-15

Abstract

The present invention relates to a kind of battery, mainly comprise zinc tube, carbon rod, electric core powder, positive electrode cap, sealing ring and iron-clad, it is characterized in that: sealing ring adopts elastomeric material, the central authorities of sealing ring that one groove that can deposit sealant is arranged; When iron-clad compresses sealing ring by positive electrode cap, can reach the better seal effect, eliminate phenomenons such as battery leakage, gas leakage.

Description

The battery that has sealing ring

The invention belongs to and be used for directly changing the device that chemical energy is an electric energy, particularly relate to a kind of battery.

At present, high-capacity battery both domestic and external generally be carbon rod as positive pole, the zinc tube is equipped with electric core powder as negative pole in the zinc tube, carbon rod is inserted in the electric core powder, the top of electric core powder is sealed in electric core powder in the zinc tube with multiple compressed tablet; On the mouth above the zinc tube plastic seal ring is arranged, there is a hole in plastic seal ring central authorities so that carbon rod passes, and are the sealants made from sealant below the plastic seal ring, and the space that forms between sealant and the multiple compressed tablet is called air chamber; Positive electrode cap is pressed on the plastic seal ring, and iron-clad wraps zinc tube and positive electrode cap in zinc tube outside; When using battery, the electric core powder generation electrochemical reaction in the zinc tube produces electric current, decomposites gas and liquid simultaneously, and gas and liquid can see through multiple compressed tablet and enter in the air chamber.Because when producing in enormous quantities, the size and the shape of plastic seal ring have minute differences, plastic seal ring and zinc tube and carbon rod can not finely coincide, and cause to reach between plastic seal ring and the zinc tube to form small slit between plastic seal ring and the carbon rod; Sealant is heated back injection zinc tube and forms sealant, but can shrink after the sealant cooling, produces the slit on every side and around the carbon rod at the zinc tube, and sealing function is reduced; If battery used of a specified duration deposited of a specified duration or ambient temperature higher, the gas that is decomposited by electric core powder can produce bigger pressure in air chamber, cause gas, liquid by between sealing ring and the zinc tube or the micro gap between sealing ring and the carbon rod leak out; Make battery scrap or corrode the instrument of use battery.

The objective of the invention is to avoid above-mentioned the deficiencies in the prior art part, a kind of new sealing ring is provided, gas and liquid that electric core powder is decomposited can be tightly sealed in air chamber.

Purpose of the present invention can realize by following technical proposal:

The present invention uses carbon rod as positive pole, the zinc tube is as negative pole, electric core powder is housed in the zinc tube, carbon rod is inserted in the electric core powder, and multiple compressed tablet covers on electric core powder, and there is a circular hole in sealing ring central authorities, after carbon rod passes this circular hole, sealing ring covers on the mouth above the zinc tube, and positive electrode cap is pressed on the sealing ring, and iron-clad wraps zinc tube and positive electrode cap in zinc tube outside; It is characterized in that: sealing ring is an elastomeric material, round the circular hole of sealing ring centre one groove to lower recess that can deposit sealant is arranged.After positive electrode cap is pressed on the sealing ring, compress positive electrode cap by iron-clad, and then sealing ring tightly is pressed on the mouth of zinc tube, because sealing ring is an elastomeric material,, do not stay the slit so can closely cooperate between sealing ring and the zinc tube; In the groove of sealing ring centre, put into sealant, the slit between sealing ring and the carbon rod can be made up; Because sealing ring is an elastomeric material, even sealant cooling after-contraction, its space of shrinking back formation also can be replenished automatically by sealing ring.

The present invention compared with prior art has the following advantages: good airproof performance, eliminated the phenomenon that gas, liquid ooze out from the zinc tube fully on every side; The handling ease of sealing ring, the required precision of its size, shape is low, can reduce cost; Saved sealant, made manufacturing process simple.

Below in conjunction with drawings and Examples the present invention is further described:

Accompanying drawing is structure master's cutaway view of the present invention, wherein:

[1], positive electrode cap; [2], groove; [3], sealing ring; [4], air chamber; [5], multiple compressed tablet; [6], electric core powder; [7], carbon rod; [8], zinc tube; [9], iron-clad; [10], following paper circle; [11], the false end; [12], mould circle on.

As anodal, zinc tube [8] is equipped with electric core powder [6] as negative pole in the zinc tube [8] with carbon rod [7] in the present invention, and carbon rod [7] is inserted in the electric core powder [6], and multiple compressed tablet [5] covers on electric core powder [6], makes electric core powder [6] and extraneous air insulated; There is a circular hole in sealing ring [3] central authorities, and after carbon rod [7] passed this circular hole, sealing ring [3] covered on the mouth of zinc tube [8] top, and the space that forms between sealing ring [3] and the multiple compressed tablet [5] is as air chamber [4]; Sealing ring [3] adopts rubber or plastic material, and the circular hole that centers on sealing ring [3] centre has a groove to lower recess [2]; Groove is equipped with sealant in [2]; Positive electrode cap [1] is pressed on the sealing ring [3], be provided with on the positive electrode cap [1] insulating effect on mould circle [12], iron-clad [9] wraps zinc tube [8] from the outside, is pressed in above the iron-clad [9] to mould on the circle [12], is pressed in below by following paper circle [10] at the false end [11]; Since iron-clad [9] by on mould circle [12] and positive electrode cap [1] has tightly been pushed down sealing ring [3], so can closely cooperate between sealing ring [3] and the zinc tube [8], do not stay the slit; In the groove [2] of sealing ring [3] centre, put into sealant, the slit between sealing ring [3] and the carbon rod [7] can be made up.

Claims

1, a kind of battery that has sealing ring, carbon rod [7] is as anodal, zinc tube [8] is equipped with electric core powder [6] as negative pole in the zinc tube [8], carbon rod [7] is inserted in the electric core powder [6], multiple compressed tablet [5] covers on electric core powder [6], there is a circular hole in sealing ring central authorities, and after carbon rod [7] passed this circular hole, sealing ring covered on the mouth of zinc tube [8] top, positive electrode cap [1] is pressed on the sealing ring, and iron-clad [9] wraps zinc tube [8] and positive electrode cap [1] in zinc tube [8] outside; It is characterized in that: sealing ring [3] is an elastomeric material.

2, the battery that has sealing ring according to claim 1 is characterized in that: round the circular hole of sealing ring [3] centre one groove to lower recess [2] that can deposit sealant is arranged.