阅读说明：本技术 一种碱锰电池的防爆结构 (Explosion-proof structure of alkaline manganese cell ) 是由 陈水标 孙刚 王世杰 于 2020-11-09 设计创作，主要内容包括：一种碱锰电池的防爆结构,包括金属外壳、负极底盖、负极集流体、极集流体固定块、以及设置在所述负极底盖与所述金属外壳之间的防爆结构,所述防爆结构包括密封体,所述密封体一端边缘处与所述金属外壳和所述负极底盖的边缘处密封连接,所述密封体另一端延伸至所述集流体固定块内,所述密封体朝向所述金属外壳的一面设置有多个支撑凸环,所述密封体朝向所述负极底盖的一面设置有缓冲环,所述缓冲环设置有金属固定片,所述金属固定片与所述负极底盖之间形成缓冲腔。(The utility model provides an explosion-proof construction of alkali-manganese cell, is in including metal casing, negative pole bottom, the negative pole mass flow body, utmost point current collection body fixed block and setting the negative pole bottom with explosion-proof construction between the metal casing, explosion-proof construction includes the seal, seal one end edge with the metal casing with the edge sealing connection of negative pole bottom, the seal other end extends to in the mass flow body fixed block, the seal orientation the one side of metal casing is provided with a plurality of support bulge loops, the seal orientation the one side of negative pole bottom is provided with the buffering ring, the buffering ring is provided with the metal fixing piece, the metal fixing piece with form the cushion chamber between the negative pole bottom.)

1. An explosion-proof structure of an alkaline manganese battery is characterized in that: comprises a metal shell (1), a negative electrode bottom cover (2), a negative electrode current collector (3), a current collector fixing block (4) and an explosion-proof structure arranged between the negative electrode bottom cover (2) and the metal shell (1), the explosion-proof structure comprises a sealing body (5), the edge of one end of the sealing body (5) is hermetically connected with the edges of the metal shell (1) and the negative bottom cover (2), the other end of the sealing body (5) extends into the current collector fixing block (4), a plurality of supporting convex rings (6) are arranged on one surface of the sealing body (5) facing the metal shell (1), a buffer ring (7) is arranged on one surface of the sealing body (5) facing the negative bottom cover (2), a metal fixing piece (8) is arranged on the buffer ring (7), and a buffer cavity (9) is formed between the metal fixing piece (8) and the negative bottom cover (2).

2. The explosion-proof structure of an alkaline manganese cell according to claim 1, characterized in that: an explosion-proof cavity is formed in the supporting convex ring (6).

3. The explosion-proof structure of an alkali-manganese battery according to claim 1, characterized in that: the sealing structure is characterized in that the sealing body (5) and the metal shell (1) are provided with concave grooves (10), and concave notches matched with the concave grooves (10) are formed in the sealing body (5).

4. The explosion-proof structure of an alkali-manganese battery according to claim 1, characterized in that: one end of the metal fixing piece (8) extends into the current collector fixing block (4), and the other end of the metal fixing piece (8) is arranged between the negative electrode bottom cover (2) and the sealing body (5).

5. An explosion-proof structure of an alkaline manganese cell according to claim 4, characterized in that: the buffer ring (9) is arranged between the metal fixing piece (8) and the sealing body (5) and is fixedly arranged in the metal shell (1) through the metal fixing piece (8) and the sealing body (5).

6. The explosion-proof structure of an alkali-manganese battery according to claim 1, characterized in that: and a sealing gasket (11) is fixedly arranged on one side, facing the metal shell (1), of the negative electrode bottom cover (2).

7. The explosion-proof structure of an alkali-manganese battery according to claim 1, characterized in that: bent parts are extended from two ends of the negative electrode bottom cover (2), extending parts are arranged at two ends of the metal shell (1) facing the negative electrode bottom cover (2), and the sealing body (5) is arranged between the bent parts and the extending parts and is in sealing connection with the bent parts and the extending parts.

Technical Field

The invention relates to the field of alkaline manganese batteries, in particular to an explosion-proof structure of an alkaline manganese battery.

Background

The alkaline manganese cell is the best variety of performance in zinc-manganese cell series. Is suitable for long-time use with large discharge capacity. The battery has lower internal resistance, so the generated current is larger than that of the common carbon battery, and the battery does not contain mercury, so the battery can be treated with the household garbage and does not need to be recycled intentionally. Alkaline batteries are known as alkaline electrolyte, and as with all dry batteries, the main structure of the battery is mainly registered by the positive electrode, the abdominal muscle and the electrolyte, and the more common alkaline battery is cylindrical.

In order to prevent leakage of the battery, a sealing ring is usually provided between the end cap and the battery case. When the temperature of the battery is too high or overdischarge occurs, gas is generated in the battery, so that the internal pressure is increased, and the battery is deformed or even exploded. Therefore, the invention provides an explosion-proof structure of the alkaline manganese battery for the use safety of the battery.

Disclosure of Invention

In view of the current situation of the prior art, the technical problem to be solved by the present invention is to provide an explosion-proof structure of an alkali-manganese battery, which improves the explosion-proof capability of the alkali-manganese battery and improves the safety of the battery.

The technical scheme adopted by the invention for solving the technical problems is as follows:

the utility model provides an explosion-proof construction of alkali-manganese cell, is in including metal casing, negative pole bottom, the negative pole mass flow body and mass flow body fixed block and setting the negative pole bottom with explosion-proof construction between the metal casing, explosion-proof construction includes the seal, seal one end edge with the metal casing with the edge sealing connection of negative pole bottom, the seal other end extends to in the mass flow body fixed block, the seal orientation the one side of metal casing is provided with a plurality of support bulge loops, the seal orientation the one side of negative pole bottom is provided with the buffering ring, the buffering ring is provided with the metal stationary blade, the metal stationary blade with form the cushion chamber between the negative pole bottom.

From this, this scheme's advantage lies in: one surface of the sealing body is provided with the plurality of supporting convex rings, when the internal pressure is increased due to the generation of gas in the battery, the supporting convex rings can play a role in reducing pressure, and the buffering is performed through the buffering ring arranged on the other side of the sealing body after the pressure of the supporting convex rings is reduced, so that the danger of explosion caused by the increase of the internal pressure due to the generation of gas in the battery can be prevented; meanwhile, a buffer cavity is formed between the metal fixing piece and the negative electrode bottom cover for buffering.

In one embodiment, an explosion-proof cavity is formed in the supporting convex ring.

From this, this scheme's advantage lies in: the explosion-proof cavity of the supporting convex ring can prevent the gas from being generated inside the battery, so that the internal pressure is increased.

In one embodiment, the sealing body and the metal shell are provided with concave grooves, and the sealing body is provided with concave notches matched with the concave grooves.

From this, this scheme's advantage lies in: through the matching of the groove on the metal shell and the concave notch on the sealing body, the sealing body can be better fixed in the metal shell, and meanwhile, the sealing effect can be achieved.

In one embodiment, one end of the metal fixing piece extends into the current collector fixing block, and the other end of the metal fixing piece is disposed between the negative electrode bottom cover and the sealing body.

From this, this scheme's advantage lies in: the metal fixing sheet is arranged to prevent the inside of the battery from contacting with the outside, and meanwhile, when the inside of the battery deforms, the metal fixing sheet can prevent liquid leakage inside the battery and the like.

In one embodiment, the cushion ring is disposed between the metal fixing piece and the sealing body and is fixedly disposed in the metal housing by the metal fixing piece and the sealing body.

From this, this scheme's advantage lies in: through the setting of buffer ring can be effectual inside the battery produce gas, lead to the internal pressure increase after, carry out decompression cushioning effect.

In one embodiment, a sealing gasket is fixedly arranged on one side of the negative electrode bottom cover facing the metal shell.

From this, this scheme's advantage lies in: the battery can be further sealed by a gasket.

In one embodiment, bent portions extend from two ends of the negative electrode bottom cover, extended portions are disposed on the metal shell towards two ends of the negative electrode bottom cover, and the sealing body is disposed between the bent portions and the extended portions and is in sealing connection with the bent portions and the extended portions.

From this, this scheme's advantage lies in: through the arrangement of the negative electrode bottom cover and the metal shell, sealing can be better realized, and the problems of battery leakage and the like are prevented.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, one surface of the sealing body is provided with the plurality of supporting convex rings, when the internal pressure is increased due to gas generated in the battery, the supporting convex rings can play a role in reducing pressure, and the buffering is carried out through the buffering ring arranged on the other side of the sealing body after the pressure of the supporting convex rings is reduced, so that the danger of explosion due to the increase of the internal pressure due to the gas generated in the battery can be prevented; meanwhile, a buffer cavity is formed between the metal fixing piece and the negative electrode bottom cover for buffering.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the explosion-proof structure of the present invention.

In the figure: 1. metal casing, 2, negative pole bottom, 3 negative pole mass flow body, 4, mass flow body fixed block, 5, seal, 6, support bulge loop, 7, cushion ring, 8, metal stationary blade, 9, cushion chamber, 10, recess, 11, sealed pad.

Detailed Description

In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments. In the following description, characteristic details such as specific configurations and components are provided only to help the embodiments of the present invention be fully understood. Thus, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In various embodiments of the present invention, it should be understood that the sequence numbers of the following processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.

It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

In the embodiments provided herein, it should be understood that "B corresponding to a" means that B is associated with a from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may be determined from a and/or other information.

The invention provides an explosion-proof structure of an alkaline manganese battery.

As shown in fig. 1-2, an explosion-proof structure of an alkali-manganese battery comprises a metal casing 1, a negative electrode bottom cover 2, a negative electrode current collector 3, a current collector fixing block 4, and an explosion-proof structure arranged between the negative electrode bottom cover 2 and the metal casing 1, wherein the explosion-proof structure comprises a sealing body 5, one end edge of the sealing body 5 is connected with the metal casing 1 and the edge of the negative electrode bottom cover 2 in a sealing manner, the other end of the sealing body 5 extends into the current collector fixing block 4, specifically, as shown in the figure, bent portions are extended at two ends of the negative electrode bottom cover 2, extending portions are arranged at two ends of the negative electrode bottom cover 1, and the sealing body 5 is arranged between the bent portions and between the extending portions and is connected with the bent portions and the extending.

Further, the one side of seal 5 towards metal casing 1 is provided with a plurality of support bulge loops 6, has seted up explosion-proof chamber in the support bulge loop 6, and when the inside production of battery was gaseous, when leading to the internal pressure increase, support bulge loop 6 and the explosion-proof chamber in the support bulge loop 6 can prevent the inside production of battery gas, and then prevent that the battery warp or explode.

Further, the one side of seal 5 orientation negative pole bottom 2 is provided with buffering ring 7, be provided with metal stationary blade 8 on the buffering ring 7, specifically, buffering ring 9 sets up between metal stationary blade 8 with the seal 5 and through metal stationary blade 8 with the seal 5 is fixed to be set up in metal casing 1, when the battery is inside to produce gas, leads to the internal pressure increase, supports the bulge 6 after warping, leads to seal 5 also to warp, and buffering ring 9 can play the secondary and support at this moment, slows down the gaseous atmospheric pressure of battery production simultaneously.

Furthermore, a buffer cavity 9 is formed between the metal fixing piece 8 and the negative electrode bottom cover 2, and the buffer cavity 9 can support for three times, so that the explosion-proof structure can well prevent the deformation and explosion caused by the increase of the internal pressure of the battery through three times of supporting explosion-proof.

In addition, 8 one end of metal stator extends to in the mass flow body fixed block 4, the other end setting of metal stator 8 is in negative pole bottom 2 with between the seal 5, and then can prevent the inside and external contact of battery through setting up of metal stator 8, when the inside emergence of battery warp simultaneously, the metal stator can prevent inside weeping etc. of battery.

Furthermore, the sealing body 5 and the metal shell 1 are provided with concave grooves 10 which are concave inwards, and concave gaps matched with the concave grooves 10 are formed in the sealing body 5.

In addition, one side of the negative electrode bottom cover 2 facing the metal shell 1 is fixedly provided with a sealing gasket 11, so that sealing can be better realized through the arrangement of the negative electrode bottom cover 2 and the metal shell 1, and the problems of battery leakage and the like are solved.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the invention has been described in detail with reference to the foregoing illustrative embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.