CN212033146U

CN212033146U - Improved carbon battery anode structure

Info

Publication number: CN212033146U
Application number: CN202021239390.5U
Authority: CN
Inventors: 刘荣海; 薛祥峰; 袁可贵; 刘展通; 林建兴
Original assignee: Fujian Nanping Nanfu Battery Co Ltd
Current assignee: Fujian Nanping Nanfu Battery Co Ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2020-11-27
Anticipated expiration: 2030-06-30

Abstract

The utility model discloses an improved carbon battery positive pole structure of a carbon battery, which comprises a carbon rod arranged at the center of a zinc cylinder, wherein a sealing ring is sleeved on the carbon rod and is fixed with the zinc cylinder in a sealing way, a central column through hole is arranged in the middle of the sealing ring, a positive plate is buckled at the top end of the carbon rod, the bottom surface of the positive plate is attached to the upper surface of the sealing ring, an insulating ring is sleeved at the outer edge of the positive plate, and a positive cap is arranged at the top opening of the positive plate; the outer edge of the lower surface of the sealing ring is inwards sunken to form an annular groove along the circumferential direction of the sealing ring, the opening end of the zinc cylinder is bent towards the center of the zinc cylinder and then is embedded in the annular groove and is fixedly bonded with the annular groove, the outer wall of the zinc cylinder is tightly sleeved with a thermal shrinkage film, and one end, close to the opening end of the zinc cylinder, of the thermal shrinkage film is coated on the outer edge of the upper surface of the sealing ring. If the battery gassing volume is big, gaseous can be ejecting with the sealing washer, prevents the battery explosion.

Description

Improved carbon battery anode structure

Technical Field

The utility model relates to a carbon battery especially relates to a modified carbon battery positive pole structure.

Background

The carbon battery is also called zinc-manganese battery, and it belongs to the primary cell among the chemical power supply, is a disposable battery, and conventional carbon battery positive pole structure is as the utility model of chinese patent No. 201420629272.3, it is including setting up the carbon-point at zinc section of thick bamboo center, the cover is equipped with the sealing washer on the carbon-point, the top of carbon-point is covered with positive cap (actually be positive plate), positive cap and the sealing washer of battery between be equipped with the insulating ring of registrate on the carbon-point, and positive cap and insulating ring lie in the top of zinc section of thick bamboo and lean on with the crimp of iron-clad incurvature when the battery encapsulation. When the battery is packaged, the wide edge part of the sealing ring is pressed below the bent surface by the bent surface bent inwards at the upper part of the zinc cylinder. Because the outer edge of the sealing ring in the positive electrode packaging structure is sealed by the zinc cylinder, and the sealing ring is not provided with the exhaust valve structure, if the gas discharge amount of the battery is large, the battery can explode.

Disclosure of Invention

An object of the utility model is to provide a modified carbon battery positive pole structure.

Realize the utility model discloses the technical scheme of purpose is: an improved carbon battery anode structure comprises a carbon rod arranged at the center of a zinc cylinder, wherein a sealing ring is sleeved on the carbon rod and is sealed and fixed with the zinc cylinder, a central column through hole is formed in the middle of the sealing ring, an anode plate is buckled at the top end of the carbon rod, the bottom surface of the anode plate is attached to the upper surface of the sealing ring, an insulating ring is sleeved on the outer edge of the anode plate, and an anode cap is arranged at the top opening of the anode plate; the lower surface of sealing washer inwards caves in the outside of center post through-hole and forms annular air chamber, the outer wall profile of air chamber is that the external diameter of boss form and air chamber open end is greater than the external diameter of air chamber diapire, the outer fringe department of the lower surface of sealing washer inwards caves in along its circumference and forms the ring channel, the open end of zinc section of thick bamboo is inlayed and is located the ring channel and bond fixedly with the ring channel after buckling the throat to zinc section of thick bamboo center, the tight cover is equipped with the pyrocondensation membrane on the zinc section of thick bamboo outer tube wall, the one end cladding of pyrocondensation membrane near zinc section of thick bamboo open end is in the upper surface of sealing washer outer fringe.

Furthermore, the insulating ring is a plastic ring embedded in the outer edge of the positive plate, and the insulating ring is fixedly connected with the positive plate through an embedding process, so that the stability of the positive structure is improved.

The utility model discloses a change the shape of sealing washer with the open end of a zinc section of thick bamboo embolia the ring channel of sealing washer in, if the battery gassing volume is big, gas can be ejecting with the sealing washer, prevent the battery explosion to the connected mode that the sealing washer was detained outward does not occupy the accommodation space of manganese powder in the zinc section of thick bamboo, makes battery capacity be greater than embedded structure, and the air chamber structure of sealing washer has still increased gaseous accommodation space, reinforcing explosion proof performance.

Drawings

Fig. 1 is a schematic longitudinal sectional structural view of a positive electrode structure of a carbon battery according to an embodiment of the present invention;

fig. 2 is a schematic longitudinal sectional structural view of the sealing ring of the present invention.

Detailed Description

The following description of the preferred embodiments of the present invention will be made with reference to the accompanying drawings.

As shown in fig. 1 and 2, an improved carbon battery anode structure includes a carbon rod 1 disposed at the center of a zinc cylinder 10, a sealing ring 2 is sleeved on the carbon rod 1, the sealing ring 2 is hermetically fixed with the zinc cylinder 10, a central column through hole 21 is disposed in the middle of the sealing ring 2, a lower surface 22 of the sealing ring 2 is recessed inward outside the central column through hole to form an annular air chamber 221, an outer wall profile of the air chamber 221 is in a boss shape, an outer diameter of an opening end 2211 of the air chamber is larger than an outer diameter of a bottom wall 2212 of the air chamber, an outer edge of a lower surface 22 of the sealing ring 2 is recessed inward along the circumferential direction to form an annular groove 222, the opening end 101 of the zinc cylinder 10 is bent toward the center of the zinc cylinder and then embedded in the annular groove 222 and is fixedly bonded with the annular groove 222, a heat-shrinkable film 20 is tightly sleeved on the cylinder wall of the zinc cylinder 10, one end of the heat-shrinkable film 20 close to the opening end 101 of the zinc cylinder is wrapped on an outer edge of an upper surface 23 of the sealing ring 2, a top end of the carbon rod 1 is provided with an anode plate 3, a bottom surface of the anode plate 3 is attached to the upper surface 23 of the sealing ring 2, an anode plate 3 is embedded in an insulating ring, and a top of the anode plate 5 is provided with an anode plate 3.

The utility model discloses the encapsulation process of the anodal structure of carbon battery who realizes includes: 1) Inserting a carbon rod into the cathode material through the separator; 2) Coating sealant in the annular groove on the lower surface of the sealing ring; 3) Sleeving a sealing ring into the exposed end of the carbon rod through the through hole of the central column and buckling the open end of the zinc cylinder into the annular groove; 4) An insulating ring is embedded at the outer edge of the positive plate; 5) The outer cylinder wall of the zinc cylinder is sleeved with a thermal shrinkage film through a thermal shrinkage process; 6) Buckling a positive plate on the top end of the carbon rod and fitting the positive plate with the upper surface of the sealing ring; 7) An iron shell is sleeved on the insulating ring, and the opening edge of the iron shell is rolled into the outer edge of the insulating ring.

The above only be the embodiment of the utility model discloses a not consequently restriction the patent scope of the utility model, all utilize the equivalent flow transform that the content of the specification was made, or direct or indirect application is in other relevant technical field, all including on the same reason the utility model discloses a patent protection within range.

Claims

1. The utility model provides a anodal structure of modified carbon battery, its is equipped with the sealing washer including setting up the carbon-point at zinc cylinder center on the carbon-point, the cover, and the sealing washer is fixed with zinc cylinder is sealed, center post through-hole has been seted up at the sealing washer middle part, and the top of carbon-point is detained and is equipped with positive plate, and the bottom surface of positive plate and the upper surface laminating of sealing washer, the outer fringe cover of positive plate are equipped with insulating ring, and the top mouth of positive plate is equipped with positive cap, its characterized in that: the lower surface of sealing washer inwards caves in the outside of center post through-hole and forms annular air chamber, the outer wall profile of air chamber is that the external diameter of boss form and air chamber open end is greater than the external diameter of air chamber diapire, the outer fringe department of the lower surface of sealing washer inwards caves in along its circumference and forms the ring channel, the open end of zinc section of thick bamboo is inlayed and is located the ring channel and bond fixedly with the ring channel after buckling the throat to zinc section of thick bamboo center, the tight cover is equipped with the pyrocondensation membrane on the zinc section of thick bamboo outer tube wall, the one end cladding of pyrocondensation membrane near zinc section of thick bamboo open end is in the upper surface of sealing washer outer fringe.

2. The carbon battery positive electrode structure according to claim 1, characterized in that: the insulating ring is a plastic ring embedded in the outer edge of the positive plate.