Zinc-manganese dry battery with explosion-proof structure

Abstract

The utility model provides a zinc-manganese dry battery with an explosion-proof structure. The zinc-manganese dry battery comprises a zinc cylinder, an inner plug and a positive electrode cap, the inner plug is fixed at the opening at the upper end of the zinc cylinder; the positive electrode cap is arranged above the inner plug and is fixed with the inner plug; at least one barb is arranged on the inner top surface of the middle part in the radial direction of the positive electrode cap, the barb extends along the axial direction of the positive electrode cap and forms an inverted cone-shaped structure, an exhaust hole is axially formed in the inner side of the barb, and the exhaust hole penetrates through the positive electrode cap; when the gas pressure in the zinc-manganese dry battery is too high to jack up the inner plug, the barbs are used for penetrating through the inner plug to release the gas in the zinc-manganese dry battery through the exhaust holes; according to the utility model, the explosion of the zinc-manganese dry battery can be effectively avoided, and the potential safety hazard is eliminated.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery technical field, specifically, relate to a zinc manganese dry battery with anti -explosion structure. BACKGROUND

[0002] Battery is used for providing electric energy's device, battery in short circuit, misusing such as reverse charging, often will appear internal gas pressure increases, when the gas pressure in the battery is too big, easy to cause the battery to appear explosion condition, namely the battery on the market exists big security risk. UTILITY MODEL CONTENTS

[0003] The utility model solves the technical problem to provide a zinc manganese dry battery with anti -explosion structure, it can effectively avoid the explosion of zinc manganese dry battery, eliminate the security risk.

[0004] The utility model provides a zinc manganese dry battery with anti -explosion structure, including zinc cylinder, inner plug and positive cap, the inner plug is fixed at the opening of zinc cylinder upper end, and the positive cap is set in the upper of inner plug and is fixed with inner plug, at least one barb is set up on the inner top surface of the middle part of the radial direction of positive cap, and the barb extends along the axial direction of positive cap and forms inverted conical shape structure, and the inner side axial of barb is provided with exhaust hole, and the exhaust hole penetrates positive cap, when the gas pressure in the zinc manganese dry battery is too big to lift the inner plug, the barb is used for penetrating the inner plug to make the gas in the zinc manganese dry battery release through exhaust hole.

[0005] The utility model discloses a zinc manganese dry battery with anti -explosion structure, it can effectively avoid the explosion of zinc manganese dry battery, eliminate the security risk.

[0006] In a possible implementation, the barb is provided with a plurality of, and the plurality of barbs are distributed equidistantly along the circumferential direction of the positive cap, by adopting the structure, since the barb is provided with a plurality of, when the gas pressure in the zinc manganese dry battery is too big to lift the inner plug, as long as any one barb pierces the inner plug, the gas in the zinc manganese dry battery can be released through the corresponding exhaust hole, thereby avoiding the explosion of the zinc manganese dry battery, that is, under the action of the plurality of barbs, when the gas pressure in the zinc manganese dry battery is too big to lift the inner plug, the reliability of piercing the inner plug can be improved, that is, the reliability of the explosion prevention of the zinc manganese dry battery can be improved.

[0007] In a possible implementation, the inner side of the upper end of the inner plug is provided with an annular necking that is gradually inwardly contracted from bottom to top, and the outer edge of the positive electrode cap is clamped in the annular necking; after the structure is used, the positive electrode cap can be reliably clamped with the inner plug, and the assembly of the positive electrode cap with the inner plug can be facilitated.

[0008] In a possible implementation, an annular taper surface that is gradually outwardly expanded from bottom to top is arranged at the upper end of the annular necking, and the annular taper surface is used for cooperating with the outer edge of the positive electrode cap to facilitate the clamping of the outer edge of the positive electrode cap into the annular necking; after the structure is used, when the positive electrode cap is assembled with the inner plug, the annular taper surface can cooperate with the outer edge of the positive electrode cap to facilitate the clamping of the outer edge of the positive electrode cap into the annular necking, that is, the assembly of the positive electrode cap with the inner plug can be facilitated.

[0009] In a possible implementation, the upper end of the zinc cylinder is provided with an annular folded edge that is inwardly horizontally folded, the annular folded edge abuts against the upper end surface of the outer edge of the inner plug, and the inner plug is compressed in the interior of the zinc cylinder through the annular folded edge; after the structure is used, after the inner plug is assembled into the opening of the upper end of the zinc cylinder, and after the upper end of the zinc cylinder is inwardly horizontally folded, the annular folded edge formed by the inwardly horizontally folded upper end of the zinc cylinder can abut against the upper end surface of the outer edge of the inner plug, and the inner plug can be reliably compressed in the interior of the zinc cylinder. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is a partial sectional structure schematic view of the utility model;

[0011] Figure 2 It is Figure 1 It is a structure schematic view of the enlarged A in the middle. DETAILED DESCRIPTION

[0012] Firstly, those skilled in the art should understand that the embodiments are only used for explaining the technical principles of the application, and are not intended to limit the protection scope of the application. Those skilled in the art can make adjustments according to the needs in order to adapt to specific application occasions.

[0013] In the description of the embodiments of the application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the application can be understood according to the specific circumstances.

[0014] In the embodiments of the present application, unless specifically defined and limited otherwise, a first feature is "on" or "under" a second feature can mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature is "over", "above" and "on top of" the second feature can mean that the first feature is directly above or obliquely above the second feature, or only means that the first feature is higher in horizontal height than the second feature. The first feature is "under", "below" and "underneath" the second feature can mean that the first feature is directly below or obliquely below the second feature, or only means that the first feature is lower in horizontal height than the second feature.

[0015] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0016] Referring to Figures 1-2 As shown in the drawings, the embodiments of the present application disclose a zinc-manganese dry battery with an explosion-proof structure, comprising a zinc cylinder 1, an inner plug 2 and a positive cap 3; the inner plug 2 is fixed at the opening of the upper end of the zinc cylinder 1, and the positive cap 3 is arranged above the inner plug 2 and fixed with the inner plug 2; at least one barb 31 is arranged on the inner top surface of the middle part of the positive cap 3 in the radial direction, the barb 31 extends along the axial direction of the positive cap 3 and forms a reverse conical structure, and the inner side of the barb 31 is axially provided with an exhaust hole 32 which penetrates the positive cap 3; when the gas pressure inside the zinc-manganese dry battery is too large to lift the inner plug 2, the barb 31 is used to penetrate the inner plug 2 to release the gas inside the zinc-manganese dry battery through the exhaust hole 32.

[0017] The barb 31 is provided with a plurality of barbs 31 which are distributed equidistantly along the circumferential direction of the positive cap 3; after adopting this structure, since the barb is provided with a plurality of barbs, when the gas pressure inside the zinc-manganese dry battery is too large to lift the inner plug, as long as any one of the barbs penetrates the inner plug, the gas inside the zinc-manganese dry battery can be released through the corresponding exhaust hole, thereby avoiding the explosion of the zinc-manganese dry battery; that is, under the action of the plurality of barbs, when the gas pressure inside the zinc-manganese dry battery is too large to lift the inner plug, the reliability of the penetration of the inner plug can be improved, that is, the reliability of the explosion-proof of the zinc-manganese dry battery can be improved.

[0018] The inner side of the upper end of the inner plug 2 is provided with an annular necking 21 which is gradually inwardly retracted from bottom to top, and the outer edge of the positive cap 3 is clamped in the annular necking 21; after adopting this structure, the positive cap can be reliably clamped together with the inner plug, and the assembly of the positive cap and the inner plug can be conveniently realized.

[0019] An annular taper surface 22 gradually expands outward from bottom to top at the upper end of the annular necking 21, and is used to guide the outer edge of the positive cap 3 to facilitate the outer edge of the positive cap 3 to be clamped into the annular necking 21; by using this structure, when the positive cap and the inner plug are assembled, the annular taper surface can guide the outer edge of the positive cap to facilitate the outer edge of the positive cap to be clamped into the annular necking, that is, it can facilitate the assembly of the positive cap and the inner plug.

[0020] The upper end of the zinc cylinder 1 is provided with an annular folded edge 11 which is folded inward horizontally, and the annular folded edge 11 abuts against the upper end surface of the outer edge of the inner plug 2, and the inner plug 2 is compressed in the interior of the zinc cylinder 1 by the annular folded edge 11; by using this structure, after the inner plug is assembled into the opening at the upper end of the zinc cylinder, and the upper end of the zinc cylinder is folded inward horizontally, the annular folded edge formed by the upper end of the zinc cylinder being folded inward horizontally can abut against the upper end surface of the outer edge of the inner plug, and can reliably compress the inner plug in the interior of the zinc cylinder.

[0021] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A zinc-manganese dry battery with an anti-explosion structure, comprising a zinc cylinder (1), an inner plug (2) and a positive cap (3); the inner plug (2) is fixed at the opening of the upper end of the zinc cylinder (1), and the positive cap (3) is arranged above the inner plug (2) and fixed with the inner plug (2); characterized in that: The inner top surface of the middle part of the positive cap (3) in radial direction is provided with at least one barb (31), which extends along the axial direction of the positive cap (3) and forms a reverse tapered structure, and the inner side of the barb (31) is provided with an exhaust hole (32) in axial direction, which penetrates the positive cap (3); when the gas pressure inside the zinc-manganese dry battery is too large to lift the inner plug (2), the barb (31) is used to penetrate the inner plug (2) to release the gas inside the zinc-manganese dry battery through the exhaust hole (32).

2. The zinc-manganese dry cell having an explosion-proof structure according to claim 1, wherein: The barb (31) is provided with a plurality of barbs (31) which are distributed equidistantly along the circumferential direction of the positive cap (3).

3. The zinc-manganese dry cell having an explosion-proof structure according to claim 1 or 2, characterized by: The inner side of the upper end of the inner plug (2) is provided with an annular necking (21) which gradually shrinks inward from bottom to top, and the outer edge of the positive cap (3) is clamped in the annular necking (21).

4. The zinc-manganese dry cell having an explosion-proof structure according to claim 3, wherein: The upper end of the annular necking (21) is provided with an annular taper (22) which gradually expands outward from bottom to top, and the annular taper (22) is used to guide the outer edge of the positive cap (3) to facilitate the clamping of the outer edge of the positive cap (3) into the annular necking (21).

5. The zinc-manganese dry cell having an explosion-proof structure according to claim 1 or 2 or 4, wherein: The upper end of the zinc cylinder (1) is provided with an annular folded edge (11) which is folded inward horizontally, and the annular folded edge (11) abuts against the upper end surface of the outer edge of the inner plug (2), and the inner plug (2) is compressed in the inner part of the zinc cylinder (1) by the annular folded edge (11).

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