CN211088331U

CN211088331U - Sealing ring applied to interior of explosion-proof zinc-manganese dry battery

Info

Publication number: CN211088331U
Application number: CN201922059415.7U
Authority: CN
Inventors: 王东兴
Original assignee: Ningbo Fengyin Battery Co ltd
Current assignee: Ningbo Fengyin Battery Co ltd
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-07-24
Anticipated expiration: 2029-11-26

Abstract

The utility model discloses a be applied to sealing washer in explosion-proof zinc manganese dry battery, including the chassis of disc, the central point on chassis puts the vertical mesopore that is used for passing the carbon-point of offering that runs through of central authorities, and on the chassis and on neighbouring mesopore position vertically run through offer at least one through hole, under the chassis on the neighbouring mesopore position of terminal surface still offer with the recess of quantity such as through hole, the opening direction of recess is towards the mesopore, the downside opening in each through hole is located a recess respectively. The technical scheme can ensure that the explosion-proof effect is achieved after the assembly of the groove in the zinc-manganese dry battery, and the groove is connected with the lower end opening of the through hole and faces to the middle hole, so that the lower end opening of the through hole can be sealed while the sealing between the carbon rod and the sealing ring is realized during gluing, and the operation of sealing the through hole is easy to realize.

Description

Sealing ring applied to interior of explosion-proof zinc-manganese dry battery

Technical Field

The utility model relates to a zinc-manganese dry battery technical field especially relates to a be applied to sealing washer in explosion-proof zinc-manganese dry battery.

Background

The common zinc-manganese battery is divided into two types of batteries according to the position of a sealing ring in a zinc cylinder: one type of battery sealing ring is arranged inside the opening of the zinc cylinder and is called an inner plug battery, and the sealing ring is called an inner plug; one type of battery sealing ring is placed above a zinc cylinder opening and is called an outer plug battery, and the sealing ring is called an outer plug. Practice shows that the outer plug battery can be easily made into an explosion-proof battery. The sealing ring of the inner plug battery also realizes explosion prevention, but is unstable in practice and is easy to generate a certain proportion of non-explosion prevention.

Therefore, a technology for opening the inner plug of the through hole is developed on the market, so that the explosion-proof function can be realized, but the hole is arranged on the bottom plane of the inner plug, and the sealing agent is difficult to be coated on the through hole.

SUMMERY OF THE UTILITY MODEL

In view of the above problems in the prior art, a sealing ring for an explosion-proof zinc-manganese dry battery is provided to easily implement the operation of sealing a through hole, so as to overcome the technical defects.

The specific technical scheme is as follows:

a sealing ring applied to an explosion-proof zinc-manganese dry battery comprises a disc-shaped chassis, a middle hole for penetrating a carbon rod is longitudinally formed in the central position of the chassis in a penetrating mode, at least one through hole is longitudinally formed in the position, close to the middle hole, of the chassis in a penetrating mode, grooves with the number equal to that of the through holes are further formed in the position, close to the middle hole, of the lower end face of the chassis, the opening direction of each groove faces towards the middle hole, and the lower side opening of each through hole is located in one groove.

Preferably, the outer edge of the chassis is also provided with a buckle structure for clamping a positive cap of the zinc-manganese dry battery.

Preferably, the outer edge of the chassis extends upwards to form a cylindrical annular edge, the upper end face of the cylindrical annular edge further extends upwards to form a horn-shaped annular edge which is expanded outwards integrally, the minimum diameter of the inner edge of the horn-shaped annular edge is smaller than the inner diameter of the cylindrical annular edge, and an annular gap formed between the inner side wall of the lower end face of the horn-shaped annular edge and the inner side wall of the cylindrical annular edge is used as a buckling structure.

Preferably, a round chamfer is arranged at the edge of the middle hole on the lower end face of the base plate, and the groove is formed in the arc face of the round chamfer.

Preferably, the whole groove is of a spherical groove structure.

Preferably, the upper end face of the bottom plate is also provided with an annular bulge extending upwards at the edge position of the central hole.

Preferably, the outer edge of the annular bulge is also provided with square grooves which are equal in number and opposite to the straight through holes.

Preferably, the number of the through holes, the number of the grooves and the number of the square grooves are all one.

Preferably, the through hole is a circular hole with the diameter of 0.05-0.15 mm.

The beneficial effects of the above technical scheme are that:

the sealing ring applied to the anti-explosion zinc-manganese dry battery comprises a chassis, a middle hole, a through hole, a groove and a buckle structure, the design of the through hole can enable the anti-explosion effect to be achieved after the sealing ring is assembled in the zinc-manganese dry battery, the groove is connected with the lower end opening of the through hole and faces the middle hole, sealing of the lower end opening of the through hole can be achieved while sealing between a carbon rod and the sealing ring is achieved during gluing, and therefore operation of sealing the through hole is easy to achieve.

Drawings

Fig. 1 is a structural cross-sectional view of a sealing ring applied to an explosion-proof zinc-manganese dry battery of the present invention;

fig. 2 is a structural cross-sectional view of the sealing ring applied to the explosion-proof zinc-manganese dry battery.

Detailed Description

In order to make the technical means, creation features, achievement purposes and effects of the present invention easy to understand, the following embodiments are specifically illustrated in conjunction with the accompanying drawings. The up-down-left-right direction as shown in fig. 1 is defined as the up-down-left-right direction in the present embodiment.

Referring to fig. 1 and fig. 2, the sealing ring applied to the explosion-proof zinc-manganese dry battery provided in this embodiment includes a disc-shaped chassis 1, a central hole 2 for passing through a carbon rod 11 is longitudinally formed in a central position of the chassis 1, at least one through hole 4 is longitudinally formed in a position on the chassis 1 adjacent to the central hole 2 for explosion-proof, grooves 3 are further formed in a position on a lower end surface of the chassis 1 adjacent to the central hole 2, the number of the grooves 3 is equal to that of the through holes 4, an opening direction of each groove 3 faces the central hole 2, and an opening on a lower side of each through hole 4 is respectively located in one groove 3; the outer edge of the chassis 1 is also provided with a buckle structure for clamping a positive cap of the zinc-manganese dry battery.

Based on the technical scheme, the sealing ring applied to the anti-explosion zinc-manganese dry battery comprises a chassis 1, a middle hole 2, a through hole 4, a groove 3 and a buckle structure, the design of the through hole 4 can enable the anti-explosion effect to be achieved after the sealing ring is assembled in the zinc-manganese dry battery, the groove 3 is connected with the lower end opening of the through hole 4 and faces the middle hole 2, the lower end opening of the through hole 4 can be sealed while the sealing between the carbon rod 11 and the sealing ring is achieved during gluing, and therefore the operation of sealing the through hole 4 is easy to achieve.

In a preferred embodiment, a cylindrical annular edge 7 is formed by extending the outer edge of the chassis 1 upwards, a flared annular edge 8 which is expanded outwards as a whole is formed by extending the upper end surface of the cylindrical annular edge 7 upwards, the minimum diameter of the inner edge of the flared annular edge 8 is smaller than the inner diameter of the cylindrical annular edge 7, and an annular gap 9 formed between the inner side wall of the lower end surface of the flared annular edge 8 and the inner side wall of the cylindrical annular edge 7 is used as the above-mentioned snap structure. Specifically, as shown in fig. 2, the outer edge of the positive electrode cap is clamped in the annular gap 9, the outer edge of the trumpet-shaped annular edge 8 is folded inwards after being abutted against the inner side wall of the zinc can, and the inner side wall of the lower end surface of the trumpet-shaped annular edge 8 further compresses the outer edge of the positive electrode cap located in the annular gap 9, so that the whole clamping structure is simple and easy to implement.

As a further preferred embodiment, a round chamfer 6 is arranged at the edge position of the central hole 2 on the lower end surface of the chassis 1, and the groove 3 is arranged on the arc surface of the round chamfer 6, so that when glue is applied between the carbon rod 11 and the chassis 1, the sealant can conveniently enter the groove 3 and close the through hole 4. Further, the groove 3 is a spherical groove structure as a whole, but is not limited thereto. Furthermore, an annular protrusion 14 is formed on the upper end surface of the chassis 1 and extends upwards at the edge of the central hole 2 to enhance the matching effect with the carbon rod 11. Furthermore, the outer edge of the annular protrusion 14 is provided with square grooves 5 which are equal in number and opposite to the straight through holes 4, so as to enhance the explosion-proof effect. Further, the number of the through holes 4, the grooves 3, and the square grooves 5 is one, but not limited thereto. Furthermore, the through hole 4 is a circular hole, and the diameter is 0.05-0.15 mm.

Specifically, after the chassis 1 with the through hole 4 is injection molded through a mold, the lower end face of the chassis 1 mainly comprises a round chamfer 6 and a groove 3 below the middle hole 2, and a position (specifically referring to fig. 2) where the lower end face of the chassis 1 abuts against the zinc cylinder is coated with a sealant 13, and meanwhile, the gluing and sealing operation for the through hole 4 is completed in the operation, so that the chassis 1 is arranged in the zinc cylinder 10 and sleeved outside the carbon rod 11, the operation is simple and convenient, and the operation is in place in one step. Through the scheme, the battery can be effectively sealed, and meanwhile, the side surface of the positive electrode cap 12 is provided with a hole communicated with the through hole 4; meanwhile, when the battery is misused, the generated internal pressure can break through the sealant 13 at the through hole 4 and release the sealant through the hole on the side surface of the positive electrode cap 12, thereby achieving the purpose of explosion prevention.

The foregoing is only a preferred embodiment of the present invention, which is illustrative, not limiting. The skilled person will understand that many variations, modifications and even equivalents can be made within the spirit and scope of the present invention as defined in the claims, but all will fall within the scope of the invention.

Claims

1. The sealing ring applied to the explosion-proof zinc-manganese dry battery is characterized by comprising a disc-shaped chassis (1), wherein a middle hole (2) used for penetrating through a carbon rod (11) is longitudinally formed in the central position of the chassis (1) in a penetrating mode, at least one through hole (4) is longitudinally formed in the position, close to the middle hole (2), of the chassis (1) in a penetrating mode, grooves (3) with the number equal to that of the through holes (4) are further formed in the position, close to the middle hole (2), of the lower end face of the chassis (1), the opening direction of each groove (3) faces to the middle hole (2), and the lower side opening of each through hole (4) is located in one groove (3).

2. The sealing ring applied to the explosion-proof zinc-manganese dry battery is characterized in that a buckling structure for buckling a positive electrode cap (12) of the zinc-manganese dry battery is further formed at the outer edge position of the chassis (1).

3. The sealing ring applied to the explosion-proof zinc-manganese dry battery is characterized in that a cylindrical annular edge (7) extends upwards from the outer edge of the chassis (1), a flared annular edge (8) which expands outwards integrally is further formed from the upper end face of the cylindrical annular edge (7), the minimum diameter of the inner edge of the flared annular edge (8) is smaller than the inner diameter of the cylindrical annular edge (7), and an annular gap (9) formed between the inner side wall of the lower end face of the flared annular edge (8) and the inner side wall of the cylindrical annular edge (7) is used as the buckling structure.

4. The sealing ring applied to the explosion-proof zinc-manganese dry battery is characterized in that a round chamfer (6) is arranged at the edge position of the middle hole (2) on the lower end surface of the bottom disc (1), and the groove (3) is formed on the cambered surface of the round chamfer (6).

5. The seal ring applied to the explosion-proof zinc-manganese dry battery in claim 4, wherein the groove (3) is of a spherical groove structure as a whole.

6. The seal ring applied to the explosion-proof zinc-manganese dry battery is characterized in that an annular bulge (14) is formed on the upper end surface of the bottom plate (1) and extends upwards at the edge position of the central hole (2).

7. The sealing ring applied to the explosion-proof zinc-manganese dry battery in claim 6, wherein the outer edge of the annular bulge (14) is provided with square grooves (5) which are equal in number and opposite to the straight-through holes (4).

8. The sealing ring applied to the explosion-proof zinc-manganese dry battery in claim 7, wherein the number of the through hole (4), the number of the groove (3) and the number of the square groove (5) are one.

9. The seal ring applied to the explosion-proof zinc-manganese dry battery in claim 1, wherein the through hole (4) is a circular hole with a diameter of 0.05-0.15 mm.