CN206194835U - Explosion -proof mechanism of dry battery - Google Patents

Abstract

The utility model discloses an explosion -proof mechanism of dry battery, including a zinc section of thick bamboo, interior casing, shell body, explosion -proof post and rupture membrane, interior casing setting is in in the shell body, just the lateral surface of interior casing with the medial surface laminating of shell body, interior casing with set up a plurality of through holes on the shell body, explosion -proof post setting is in in the through hole, the outer end of explosion -proof post with the lateral surface coincidence of shell body, including inner setting of explosion -proof post in the casing, a zinc section of thick bamboo sets up the inner shell is internal, just be provided with on the zinc section of thick bamboo a plurality of with the recess that explosion -proof post corresponds, the rupture membrane cladding is in the lateral surface of shell body. The utility model relates to an explosion -proof mechanism of dry battery is through setting up a plurality of explosion -proof posts on the outer wall of dry battery, make the dry battery at the in -process that uses, if during the incline of inside appearance inflation explosion, can support explosion -proof post go out to reduce the inside atmospheric pressure of dry battery, thereby realize reminding and blast proof purpose.

Description

A kind of dry-cell mechanism

Technical field

The utility model is related to battery field, more particularly to a kind of dry-cell mechanism.

Background technology

Dry cell is a kind of galvanic chemical cell to be produced with pasty state electrolyte (wet cell is then to use liquid electrolyte The chemical cell of liquid), be generally divided into two kinds of one-shot battery and secondary cell, be to commonly use among daily life, and Light battery, they can be used on many electrical appliances.But present most of dry cells are without explosion-protection equipment, Therefore dry cell is likely to occur the situation of blast, the danger that initiation is used in use.

Utility model content

The purpose of this utility model is that and provide a kind of dry-cell mechanism in order to solve the above problems.

The utility model is achieved through the following technical solutions above-mentioned purpose：

A kind of dry-cell mechanism, including zinc cylinder, inner housing, shell body, anti-explosion post and rupture pressure disc, the inner housing set Put in the shell body, and the lateral surface of the inner housing is fitted with the medial surface of the shell body, the inner housing and institute State and multiple through holes be set on shell body, the anti-explosion post is arranged in the through hole, the outer end of the anti-explosion post with it is described The lateral surface of shell body is overlapped, and the inner of the anti-explosion post is arranged in inner housing, and the zinc cylinder is arranged in the inner housing, And multiple grooves corresponding with the anti-explosion post are provided with the zinc cylinder, the rupture pressure disc is coated on the outside of the shell body Face.

Specifically, the zinc cylinder, the inner housing, the shell body and the rupture pressure disc are coaxially disposed, the inner casing The first end of body and the shell body is provided with positive pole hole, and the second end of the inner housing and the shell body is provided with negative pole Hole, is provided with multiple being fitted with zinc cylinder and anti-with the conduction being fixedly connected on the inside of the negative pole hole in the negative pole hole Quick-fried bar.

Specifically, multiple through holes are uniformly distributed, and along the radial direction setting of the inner housing, the anti-explosion post The inner be resisted against on the groove of zinc cylinder, the length of the anti-explosion post is more than the inner housing and the thickness of the shell body Sum.

Further, the external diameter of the anti-explosion post is equal with the internal diameter of the through hole, and the inner of the anti-explosion post is provided with Retainer ring, the internal diameter of the external diameter more than the through hole of the retainer ring, is provided between the retainer ring and the through hole Gap.

The beneficial effects of the utility model are：

A kind of dry-cell mechanism of the utility model by be battery outer wall on multiple anti-explosion posts are set, make dry electricity Pond is during use, if during the tendency of internal appearance expansion blast, can support out anti-explosion post, so as to reduce in dry cell The air pressure in portion, so as to realize reminding and explosion-proof purpose.

Brief description of the drawings

Fig. 1 is a kind of structural representation of dry-cell mechanism described in the utility model.

Specific embodiment

The utility model is described in further detail below in conjunction with the accompanying drawings：

It is as shown in figure 1, a kind of dry-cell mechanism of the utility model including zinc cylinder 5, inner housing 1, shell body 2, explosion-proof Post 4 and rupture pressure disc 3, inner housing 1 are arranged in shell body 2, and the lateral surface of inner housing 1 is fitted with the medial surface of shell body 2, interior Multiple through holes are set, and anti-explosion post 4 is arranged in through hole, outer end and the shell body 2 of anti-explosion post 4 on housing 1 and shell body 2 Lateral surface is overlapped, and the inner of anti-explosion post 4 is arranged in inner housing 1, and zinc cylinder 5 is arranged in inner housing 1, and is provided with zinc cylinder 5 Multiple and the corresponding groove of anti-explosion post 4, rupture pressure disc 3 are coated on the lateral surface of shell body 2, zinc cylinder 5, inner housing 1, the and of shell body 2 Rupture pressure disc 3 is coaxially disposed, and the first end of inner housing 1 and shell body 2 is provided with positive pole hole 6, and the of inner housing 1 and shell body 2 Two ends are provided with negative pole hole 7, are provided with multiple being fitted with zinc tin 5 in negative pole hole 7 and are fixedly connected with the inner side in negative pole hole 7 Conductive explosion-proof bar 8, multiple through holes are uniformly distributed, and along the radial direction setting of inner housing 1, the inner of anti-explosion post 4 is resisted against On the groove of zinc cylinder 5, the length of anti-explosion post 4 more than inner housing 1 and the thickness sum of shell body 2, the external diameter of anti-explosion post 4 with run through The internal diameter in hole is equal, and the inner of anti-explosion post 4 is provided with retainer ring, the internal diameter of the external diameter more than through hole of retainer ring, retainer ring with Gap is provided between through hole.

A kind of operation principle of dry-cell mechanism of the utility model is as follows：

Normal when using, electrolyte by dry cell etc. is placed in zinc cylinder 5, and connect both positive and negative polarity etc.；In use, If expansion explosion tendency occurs in the electrolysis mass-energy in dry cell, the inner to anti-explosion post 4 applies outside active force, as After being firmly more than anti-explosion post 4 and the frictional force of through hole and the rated value sum of rupture pressure disc 3, anti-explosion post 4 slides in and out so that zinc Volume increase inside cylinder 5, it is to avoid blast；Simultaneously user's battery can be reminded to break down by raised anti-explosion post 4, kept away Exempt to be continuing with causing serious consequence.

The technical solution of the utility model is not limited to the limitation of above-mentioned specific embodiment, every according to skill of the present utility model The technology deformation that art scheme is made, each falls within protection domain of the present utility model.

Claims (4)

1. a kind of dry-cell mechanism, it is characterised in that：Including zinc cylinder, inner housing, shell body, anti-explosion post and rupture pressure disc, institute Inner housing is stated to be arranged in the shell body, and the lateral surface of the inner housing is fitted with the medial surface of the shell body, it is described Multiple through holes are set on inner housing and the shell body, and the anti-explosion post is arranged in the through hole, the anti-explosion post Outer end is overlapped with the lateral surface of the shell body, and the inner of the anti-explosion post is arranged in inner housing, and the zinc cylinder is arranged on institute State in inner housing, and multiple grooves corresponding with the anti-explosion post are provided with zinc cylinder, the rupture pressure disc is coated on described The lateral surface of shell body.

2. a kind of dry-cell mechanism according to claim 1, it is characterised in that：The zinc cylinder, the inner housing, institute State shell body and the rupture pressure disc is coaxially disposed, the first end of the inner housing and the shell body is provided with positive pole hole, institute The second end for stating inner housing and the shell body is provided with negative pole hole, multiple cylinders with the zinc is provided with the negative pole hole and is fitted And with the conductive explosion-proof bar being fixedly connected on the inside of the negative pole hole.

3. a kind of dry-cell mechanism according to claim 2, it is characterised in that：Multiple through holes uniformly divide Cloth, and along the radial direction setting of the inner housing, the inner of the anti-explosion post is resisted against on the groove of the zinc cylinder, described anti- The length of quick-fried post is more than the inner housing and the thickness sum of the shell body.

4. a kind of dry-cell mechanism according to claim 3, it is characterised in that：The external diameter of the anti-explosion post with it is described The internal diameter of through hole is equal, and the inner of the anti-explosion post is provided with retainer ring, and the external diameter of the retainer ring is more than the through hole Internal diameter, be provided with gap between the retainer ring and the through hole.