CN214743584U

CN214743584U - Exhaust air plug for cadmium-nickel accumulator

Info

Publication number: CN214743584U
Application number: CN202122224292.5U
Authority: CN
Inventors: 李淑静; 刘兴芬; 苏正会; 王玲丽; 孙晋超; 徐红云
Original assignee: Henan Xintaihang Power Co ltd
Current assignee: Henan Xintaihang Power Co ltd
Priority date: 2021-09-15
Filing date: 2021-09-15
Publication date: 2021-11-16
Anticipated expiration: 2031-09-15

Abstract

The utility model discloses a cadmium-nickel accumulator exhaust air plug, which comprises an air plug body and an inner core, wherein the air plug body is of a step shaft structure with large upper outer diameter and small lower outer diameter, the inner part of the air plug body is provided with a through hole of the step shaft structure, the structure of the through hole is matched with the air plug body, the side wall of the upper end of the air plug body is provided with an exhaust hole communicated with the through hole, the inner core is nested at the upper end of the step of the through hole in the air plug body, the air plug body is provided with a top cover which is nested at the opening part at the upper end of the through hole, the lower surface of the top cover is provided with a holding tank, and a spring is vertically nested in the holding tank, one end of the spring, which is far away from the holding tank, is contacted with the upper surface of the inner core, the utility model has the advantages of timely discharging the gas in the accumulator for pressure relief, preventing the electrolyte from being polluted, avoiding influencing the normal charge-discharge reaction of the accumulator and reducing the maintenance cost of the accumulator, simple structure, easy dismounting, exhaust and sealing performance are stable, advantages such as universalization degree height.

Description

Exhaust air plug for cadmium-nickel accumulator

Technical Field

The utility model relates to a battery gas plug technical field specifically is a cadmium-nickel battery exhaust gas plug.

Background

The cadmium-nickel storage battery pack is one of important corollary equipment of an airplane and is usually used as an emergency standby power supply system of the airplane, the cadmium-nickel storage battery pack is in a full-charge state before being loaded on the airplane, a charger supplies 28.5V floating charge voltage to the storage battery pack during flying, floating charge belongs to overcharge, and all current is used for electrolyzing water into hydrogen and oxygen during overcharge, so that the storage battery needs to be matched with an exhaust type air plug to exhaust gas, the existing air plug is in a straight-through type, the inside of the storage battery is connected with the external environment through a U-shaped channel, but the gas in the storage battery cannot be exhausted in time, the exhaust and sealing performance is unstable, the external gas easily enters the storage battery to pollute electrolyte, normal charge-discharge reaction of the storage battery is influenced, the maintenance cost of the storage battery is improved, the generalization degree is low, and the like.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, a cadmium-nickel battery exhaust air plug is provided, gas in the battery that can in time discharge carries out the pressure release, and can prevent that outside gas from entering into and make electrolyte receive the pollution in the battery, avoid influencing the normal charge-discharge reaction of battery, reduce the cost of maintenance of battery, simple structure, easy dismounting, exhaust and sealing performance are stable, and the universalization degree is high, can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a cadmium-nickel storage battery exhaust air plug, includes air plug body and inner core, the air plug body is the big step axial structure that the lower extreme external diameter is little of upper end external diameter, and the through-hole of step axial structure is seted up to the internal portion of air plug, and the structure and the air plug body adaptation of through-hole, set up the exhaust hole that is linked together with the through-hole on the lateral wall of air plug body upper end, the nested inner core that has in the upper end that lies in through-hole step department in the air plug body, the opening part inlay card that lies in the through-hole upper end on the air plug body has the top cap, and the holding tank has been seted up to the lower surface of top cap, and vertical nestification has the spring in the holding tank, the one end and the inner core upper surface contact of holding tank are kept away from to the spring.

Furthermore, the outer surface of the convex shaft at the lower end of the air plug body is provided with an external thread, and a sealing ring is arranged on the step surface of the air plug body.

Furthermore, the upper surface of inner core has seted up the circular recess, and the internal diameter of circular recess and the external diameter looks adaptation of spring, and the circular recess bottom is equipped with cyclic annular lug, and the external diameter of cyclic annular lug and the internal diameter looks adaptation of spring, the spring nestification is in the circular recess.

Furthermore, a sealing gasket with a circular structure is bonded on the lower surface of the inner core, and the outer diameter of the sealing gasket is larger than the inner diameter of a stepped hole at the lower end of the through hole.

Furthermore, an inwards concave clamping ring groove is formed in the side wall of the top cover, and a clamping convex ring matched with the clamping ring groove is arranged at the position, located in the clamping ring groove, in the air plug body.

Compared with the prior art, the beneficial effects of the utility model are that: this cadmium-nickel battery exhaust gas stopper, when the inside atmospheric pressure of battery rises to certain numerical value, gaseous through the through-hole upwards promotes the inner core, gaseous exhausts through-hole and exhaust hole, after the inside atmospheric pressure of battery drops to certain numerical value, the inner core seals the exhaust hole again, moreover, the steam generator is simple in structure, easy dismounting, exhaust and sealing performance are stable, gas in the battery that can in time discharge carries out the pressure release, and can prevent that outside gas from entering into and make electrolyte receive the pollution in the battery, avoid influencing the normal charge-discharge reaction of battery, reduce the cost of maintenance of battery, be convenient for connect exhaust hole or blast pipe on the battery through the external screw thread, the universalization degree is high.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a front view of the present invention;

FIG. 3 is a schematic view of the internal structure of the air plug body of the present invention;

FIG. 4 is a cross-sectional view of the air plug body of the present invention;

FIG. 5 is a schematic view of the structure of the inner core of the present invention;

fig. 6 is a sectional view of the inner core of the present invention;

fig. 7 is a schematic view of the top cover structure of the present invention.

In the figure: 1, a gas plug body, 101 through holes, 102 exhaust holes, 103 external threads, 2 inner cores, 201 circular grooves, 202 annular protrusions, 3 springs, 4 top covers, 401 accommodating grooves, 402 clamping ring grooves, 5 sealing rings and 6 sealing gaskets.

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.

Example one

Referring to fig. 1-7, the present invention provides a technical solution: the utility model provides a cadmium-nickel storage battery exhaust air plug, includes air plug body 1 and inner core 2, air plug body 1 is the big step axle structure that the lower extreme external diameter is little of upper end external diameter, and the through-hole 101 of step axle column structure is seted up to air plug body 1 inside, and the structure of through-hole 101 and air plug body 1 looks adaptation, set up the exhaust hole 102 that is linked together with through-hole 101 on the lateral wall of air plug body 1 upper end, the nested inner core 2 that has been located the upper end of through-hole 101 step in air plug body 1, the embedded top cap 4 that has been located the opening part card of through-hole 101 upper end on air plug body 1, the lower surface of top cap 4 has seted up holding tank 401, and the vertical nested spring 3 that has in holding tank 401, the one end that holding tank 401 was kept away from to spring 3 and inner core 2 upper surface contact are connected through the protruding axle of air plug body 1 lower extreme and the exhaust hole or blast pipe on the battery, thereby extrude inner core 2 through spring 3 and seal through hole 101 lower extreme step hole, when the inside atmospheric pressure of battery rises to certain numerical value, gaseous through-hole 101 upwards promotes inner core 2, gaseous through-hole 101 and exhaust hole 102 exhaust, after the inside atmospheric pressure of battery drops to certain numerical value, inner core 2 is sealed with through-hole 101 under the effect of spring 3 thrust, moreover, the steam generator is simple in structure, easy dismounting, exhaust and sealing performance are stable, the gaseous pressure release that carries out in the battery that can in time discharge, and can prevent that outside gas from entering into and making electrolyte receive the pollution in the battery, avoid influencing the normal charge-discharge reaction of battery, reduce the cost of maintenance of battery.

Further, the outer surface of the protruding shaft at the lower end of the air plug body 1 is provided with an external thread 103, a sealing ring 5 is arranged on the step surface of the air plug body 1, the exhaust hole or the exhaust pipe on the storage battery can be conveniently connected through the external thread 103, the generalization degree is high, and the disassembly and assembly are convenient.

Further, circular recess 201 has been seted up to the upper surface of inner core 2, and the internal diameter of circular recess 201 and the external diameter looks adaptation of spring 3, and circular recess 201 bottom is equipped with cyclic annular lug 202, and the external diameter of cyclic annular lug 202 and the internal diameter looks adaptation of spring 3, spring 3 nestification is in circular recess 201, plays the guide effect through cyclic annular lug 202 and circular recess 201 to spring 3's flexible, and exhaust and sealing performance are stable.

Further, a sealing gasket 6 with a circular structure is bonded to the lower surface of the inner core 2, the outer diameter of the sealing gasket 6 is larger than the inner diameter of a stepped hole at the lower end of the through hole 101, and the sealing performance of the through hole 101 is improved through the sealing gasket 6.

Furthermore, an inward-concave snap ring groove 402 is formed in the side wall of the top cover 4, a snap ring matched with the snap ring groove 402 is arranged at the position of the snap ring groove 402 in the gas plug body 1, the snap ring groove 402 on the top cover 4 and the snap ring on the gas plug body 1 are mutually clamped, and the gas plug body 1 is convenient to disassemble and assemble.

When in use: the protruding axle of 1 lower extreme of the gas cock body is connected with exhaust hole or blast pipe on the battery, thereby spring 3 extrudees inner core 2 and seals through-hole 101 lower extreme step hole, and when the inside atmospheric pressure of battery rose certain numerical value, gaseous through-hole 101 upwards promoted inner core 2, gaseous through-hole 101 and exhaust hole 102 exhaust, after the inside atmospheric pressure of battery dropped to certain numerical value, spring 3 extension promoted inner core 2 and resealed through-hole 101.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a cadmium-nickel battery exhaust gas stopper, includes the gas cock body and inner core, its characterized in that: the air plug body is of a stepped shaft structure with large outer diameter at the upper end and small outer diameter at the lower end, a through hole of a stepped shaft structure is formed in the air plug body, the structure of the through hole is matched with the air plug body, an exhaust hole communicated with the through hole is formed in the side wall of the upper end of the air plug body, an inner core is embedded in the upper end of the step of the through hole in the air plug body, a top cover is embedded in the opening of the upper end of the through hole in the air plug body in a clamping mode, a containing groove is formed in the lower surface of the top cover, a spring is vertically embedded in the containing groove, and one end, far away from the containing groove, of the spring is in surface contact with the upper surface of the inner core.

2. The exhaust gas plug for cadmium nickel storage battery as set forth in claim 1, wherein: the outer surface of the protruding shaft at the lower end of the air plug body is provided with external threads, and a sealing ring is arranged on the step surface of the air plug body.

3. The exhaust gas plug for cadmium nickel storage battery as set forth in claim 1, wherein: the upper surface of inner core has seted up the circular recess, and the internal diameter of circular recess and the external diameter looks adaptation of spring, and the circular recess bottom is equipped with cyclic annular lug, and the external diameter of cyclic annular lug and the internal diameter looks adaptation of spring, the spring nestification is in the circular recess.

4. The exhaust gas plug for cadmium nickel storage battery as set forth in claim 1, wherein: the lower surface of the inner core is bonded with a sealing gasket of a circular structure, and the outer diameter of the sealing gasket is larger than the inner diameter of a step hole at the lower end of the through hole.

5. The exhaust gas plug for cadmium nickel storage battery as set forth in claim 1, wherein: the side wall of the top cover is provided with an inward-concave clamping ring groove, and a clamping convex ring matched with the clamping ring groove is arranged at the position of the clamping ring groove in the air plug body.