CN213242679U

CN213242679U - Explosion-proof piece of battery cap

Info

Publication number: CN213242679U
Application number: CN202021975346.0U
Authority: CN
Inventors: 龙永云
Original assignee: Suzhou Jiezhiyang Precision Components Co ltd
Current assignee: Suzhou Jiezhiyang Precision Components Co ltd
Priority date: 2020-09-11
Filing date: 2020-09-11
Publication date: 2021-05-18
Anticipated expiration: 2030-09-11

Abstract

The utility model discloses a battery cap explosion-proof piece, including casing, bottom, carbon-point, rubber stick and top cap, the bottom is installed in the lower surface embedding of top cap, and the intermediate position department of bottom is equipped with the arc piece, casing and top cap interconnect, the avris of top cap be equipped with the catching groove of casing looks adaptation, and the casing passes through catching groove and top cap interconnect, and the upper surface intermediate position department of top cap is equipped with the contact, carbon-point slidable mounting is on the arc piece, and the top of carbon-point and the inner wall of contact each other contact, the one end of rubber stick and the inner wall of contact each other contact, the other end of rubber stick and the internal surface of arc piece each other contact, the exhaust hole has evenly been seted up on the top cap equidistance. The utility model discloses, compact structure, it is convenient to use, is convenient for change the battery inner space, improves appearance gas volume, and effectual suppression battery phenomenon of bursting satisfies personnel's user demand.

Description

Explosion-proof piece of battery cap

Technical Field

The utility model relates to a battery cap technical field specifically is a battery cap explosion-proof piece.

Background

The battery caps are various, the alkaline electronic battery or the lead-acid battery is simple, the lithium battery is complex, and the cylindrical battery is a commonly used battery and is widely applied to the fields of electric vehicles, mobile communication terminals, photovoltaic energy sources and the like. With the widespread use of cylindrical batteries, the safety problem is increasingly highlighted. For example, a cylindrical battery has potential safety hazard of explosion in the use process, when the battery is improperly used and causes external short circuit, the battery discharges with large current, the temperature rises, and the electrolyte decomposes to generate gas, so that the internal pressure of the battery exceeds the limit, and the battery is caused to burn and explode; when the cylindrical battery has the unexpected conditions of internal short circuit, environmental overheating, mechanical damage and the like, the electrolyte in the battery can also be decomposed to generate gas, so that the internal pressure of the battery is continuously increased, the temperature is continuously increased, and finally the battery is combusted and exploded.

When the existing battery cap is used, the space in the battery is inconvenient, and when the air is not exhausted timely, the battery is easily extruded by gas to burst, so that the use requirement of personnel can not be met.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a battery cap explosion-proof piece possesses compact structure, and it is convenient to use, is convenient for change battery inner space, improves appearance gas volume, and effectual suppression battery phenomenon of bursting satisfies personnel's user demand's advantage, solves current battery cap in the use, and the battery inner space is inconvenient, and when exhausting untimely, the battery receives gaseous extrusion production easily and bursts, can not satisfy personnel's user demand's problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a battery cap explosion-proof piece, includes casing, bottom, carbon-point, rubber stick and top cap, the bottom is installed in the lower surface embedding of top cap, and the intermediate position department of bottom is equipped with the arc piece, casing and top cap interconnect, and the upper surface intermediate position department of top cap is equipped with the contact, carbon-point slidable mounting is on the arc piece, and the top of carbon-point and the inner wall of contact each other, the one end of rubber stick and the inner wall of contact each other contact, the other end of rubber stick and the internal surface of arc piece each other contact, the exhaust hole has evenly been seted up on the top cap equidistance.

Preferably, the arc piece is provided with a through hole matched with the carbon rod, and the carbon rod is in sliding contact with the inner wall of the through hole.

Preferably, the rubber stick adopts the cavity design, and the upper end of carbon-point is located the inside of rubber stick.

Preferably, the side of the top cover is provided with a buckling groove matched with the shell, and the shell is connected with the top cover through the buckling groove.

Preferably, the upper surface of the contact protrudes from the upper surface of the cap.

Preferably, the exhaust holes are eight in total, two exhaust holes are one group, and four groups of exhaust holes are distributed in an annular array relative to the top cover.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses battery cap explosion-proof piece is in the use, fix the end at the battery with this battery cap, when battery heaies up its internal gas expansion, gaseous from exhaust hole discharge, come not as far as the arc piece on the gaseous extrusion bottom of combustion gas, make the arc piece upwards sunken production deformation, the rubber stick produces deformation under the extrusion of arc piece, at this moment, enlarge the inside appearance gas space of battery, when capacity production enlarges, reduce the supporting force of gas expansion to the battery junction, after the gaseous discharge of inflation, the arc piece resumes original position under the spring action of rubber stick can, moreover, the steam generator is compact in structure, it is convenient to use, be convenient for change the battery inner space, improve and hold the gas volume, the effectual battery burst phenomenon that suppresses, satisfy personnel's user demand.

Drawings

Fig. 1 is a schematic view of the structure of the present invention;

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

fig. 3 is a schematic structural diagram of a in fig. 1 according to the present invention.

In the figure: 1. a housing; 2. a bottom cover; 3. an arc sheet; 4. a contact; 5. a carbon rod; 6. a rubber rod; 7. a top cover; 8. buckling grooves; 9. and (4) exhausting holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to fig. 3, the present invention provides an embodiment: the utility model provides a battery cap explosion-proof piece, includes casing 1, bottom 2, carbon-point 5, rubber stick 6 and top cap 7, casing 1 and top cap 7 interconnect, the avris of top cap 7 be equipped with the catching groove 8 of 1 looks adaptation of casing, and casing 1 passes through catching groove 8 and top cap 7 interconnect.

The battery cap is fixed at the end of a battery, when the battery is heated and the internal gas expands, the top cover 7 is uniformly provided with eight vent holes 9 at equal intervals, two vent holes 9 are in a group, four groups of vent holes 9 are distributed in an annular array relative to the top cover 7, and the gas is discharged from the vent holes 9. The lower surface of top cap 7 is embedded and is installed bottom 2, and the intermediate position department of bottom 2 is equipped with arc piece 3, and it is too late for the discharge gas extrusion arc piece 3 on the bottom 2 for arc piece 3 is sunken upwards and is produced deformation.

The middle position of the upper surface of the top cover 7 is provided with a contact 4, the upper surface of the contact 4 protrudes out of the upper surface of the top cover 7, the carbon rod 5 is slidably mounted on the arc sheet 3, the arc sheet 3 is provided with a through hole matched with the carbon rod 5, the carbon rod 5 is in sliding contact with the inner wall of the through hole, the top end of the carbon rod 5 is in contact with the inner wall of the contact 4, one end of the rubber rod 6 is in contact with the inner wall of the contact 4, the other end of the rubber rod 6 is in contact with the inner surface of the arc sheet 3, the rubber rod 6 is in a hollow design, the upper end of the carbon rod 5 is positioned in the rubber rod 6, the rubber rod 6 is deformed under the extrusion of the arc sheet 3, at the moment, the gas containing space in the battery is enlarged, when the capacity is enlarged, the supporting force of gas expansion on the battery connection part is reduced, after the expanded gas is discharged, the arc sheet 3 is restored to the original position under, compact structure, it is convenient to use, is convenient for change battery inner space, improves appearance gas volume, and effectual suppression battery phenomenon of bursting satisfies personnel's user demand.

The working principle is as follows: the utility model discloses battery block explosion-proof piece is in the use, when fixing the end at the battery with this battery block, when battery intensifies its internal gas expansion, gaseous from exhaust hole 9 discharges, come not as much as the arc piece 3 on the combustion gas extrusion bottom 2, make arc piece 3 make the upwards sunken deformation that produces, rubber rod 6 produces deformation under the extrusion of arc piece 3, at this moment, enlarge the inside appearance gas space of battery, when capacity production enlarges, reduce the supporting force of gas expansion to the battery junction, after the gaseous discharge of inflation, arc piece 3 resumes original position can under the spring action of rubber rod 6.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a battery cap explosion-proof piece, includes casing (1), bottom (2), carbon-point (5), rubber stick (6) and top cap (7), its characterized in that: bottom (2) are installed in the lower surface embedding of top cap (7), and the intermediate position department of bottom (2) is equipped with arc piece (3), casing (1) and top cap (7) interconnect, and the upper surface intermediate position department of top cap (7) is equipped with contact (4), carbon-point (5) slidable mounting is on arc piece (3), and the top of carbon-point (5) and the inner wall of contact (4) contact each other, the one end of rubber-point (6) and the inner wall of contact (4) contact each other, the other end of rubber-point (6) and the internal surface of arc piece (3) contact each other, and exhaust hole (9) have evenly been seted up to equidistance on top cap (7).

2. The battery cap explosion-proof sheet according to claim 1, wherein: the arc piece (3) is provided with a through hole matched with the carbon rod (5), and the carbon rod (5) is in sliding contact with the inner wall of the through hole.

3. The battery cap explosion-proof sheet according to claim 1, wherein: the rubber rod (6) is designed to be hollow, and the upper end of the carbon rod (5) is located inside the rubber rod (6).

4. The battery cap explosion-proof sheet according to claim 1, wherein: the avris of top cap (7) is equipped with catching groove (8) with casing (1) looks adaptation, and casing (1) passes through catching groove (8) and top cap (7) interconnect.

5. The battery cap explosion-proof sheet according to claim 1, wherein: the upper surface of the contact (4) protrudes out of the upper surface of the top cover (7).

6. The battery cap explosion-proof sheet according to claim 1, wherein: the number of the exhaust holes (9) is eight, two exhaust holes (9) form a group, and four groups of exhaust holes (9) are distributed in an annular array relative to the top cover (7).