CN211858696U - Battery with waterproof exhaust apparatus - Google Patents

Abstract

The utility model relates to a battery with waterproof exhaust apparatus, including the battery upper cover, cover on the battery and be provided with the boss, be provided with the exhaust hole that passes the battery upper cover in the boss, the closing cap has sealed the pad on the boss, cover on and be provided with the spring mechanism that makes sealed pad sticiss on the boss. The exhaust device can prevent water under the normal condition of the battery, and can be discharged from the battery in time when the electric core in the battery abnormally generates high-temperature and high-pressure gas.

Description

Battery with waterproof exhaust apparatus

Technical Field

The utility model relates to a battery with waterproof exhaust apparatus.

Background

With the development of electronic products, various mobile devices use a large amount of lithium ion batteries, but the lithium ion batteries all have certain use safety risks. When the battery core is out of control due to heat, the pressure release valve can be opened to generate a large amount of high-temperature and high-pressure gas, so that the high-temperature and high-pressure gas is required to be discharged from the exhaust port of the battery shell. The vent in the battery case is sealed during normal use of the battery. For this reason, a waterproof and air-discharging device needs to be designed on the battery.

Disclosure of Invention

An object of the utility model is to provide a battery with waterproof exhaust apparatus, this exhaust apparatus make the battery can be waterproof under the normal condition, and can in time be discharged in the battery when electric core produces high temperature high-pressure gas unusually in the battery.

The technical scheme of the utility model lies in: the utility model provides a battery with waterproof exhaust apparatus, includes the battery upper cover, cover on the battery and be provided with the boss, be provided with the exhaust hole that passes the battery upper cover in the boss, the sealed pad that has stamped on the boss, cover on and be provided with the spring mechanism that makes sealed pad sticis on the boss.

Furthermore, the spring mechanism comprises a guide hole arranged in the boss, a guide pillar with the upper end connected with the sealing gasket is arranged in the guide hole in a penetrating mode from bottom to top, and a pre-compression spring with the upper end abutting against the lower side face of the upper battery cover is sleeved on the guide pillar.

Furthermore, the upper end of the guide post is provided with an annular clamping groove, and the middle part of the sealing gasket is provided with a mounting hole for embedding the clamping groove.

Furthermore, the boss is an annular boss, and the middle part of the sealing gasket is provided with a lower concave part connected with the guide pillar.

Further, the sealing gasket material is silica gel.

Further, the guide post is made of aluminum or plastic.

Compared with the prior art, the utility model has the advantages of it is following: the exhaust device can prevent water under the normal condition of the battery, and when the battery core in the battery is abnormal, for example, the battery core is out of control due to heat, and high-temperature and high-pressure gas is generated and can be timely exhausted from the battery.

Drawings

Fig. 1 is a schematic structural view (exploded state) of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is a partially enlarged view of fig. 2 according to the present invention;

fig. 4 is a schematic view of the matching structure of the sealing gasket and the guide pillar of the present invention.

Detailed Description

In order to make the aforementioned features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below, but the present invention is not limited thereto.

Refer to fig. 1 to 4

The utility model provides a battery with waterproof exhaust apparatus, includes battery upper cover 10, cover on the battery and be provided with boss 11, be provided with the exhaust hole 12 that passes the battery upper cover in the boss, the sealed pad 20 that has stamped on the boss, cover on and be provided with the spring mechanism that makes sealed pad sticiss on the boss, make the exhaust hole be in sealedly under normal condition through spring mechanism to sealed pad is opened under high-pressure state.

In this embodiment, in order to make the sealing gasket in a sealing state in normal use, the spring mechanism includes a guide hole 13 disposed in the boss, a guide post 14 having an upper end connected to the sealing gasket is disposed in the guide hole from bottom to top, and a spring 15 having an upper end abutting against the lower side surface of the battery upper cover and in a pre-compression state is sleeved on the guide post.

In this embodiment, in order to realize the connection between the sealing gasket and the guide pillar, an annular clamping groove 141 is provided at the upper end of the guide pillar, and a mounting hole 21 for embedding the clamping groove is provided in the middle of the sealing gasket.

In this embodiment, in order to better complete the sealing, the boss is an annular boss, the middle portion of the sealing gasket is provided with a lower concave portion 22 connected with the guide pillar, and the mounting hole is formed in the lower concave portion, so that the sealing can be better completed.

In this embodiment, in order to make the gasket deform under the action of the high-pressure gas, the gasket material is silica gel. The guide post is made of aluminum or plastic materials, so that deformation of the guide post under a high-pressure state is avoided.

For a normally used battery, the sealing gasket is pressed on the boss of the upper cover to realize sealing, the spring is in a pre-compression state, the spring is in a compression state of the guide rod and the upper cover, and the sealing gasket is pressed on the boss of the upper cover to enable the battery to be in a sealed waterproof state; for the battery with the thermal runaway electric core, high pressure is generated inside the battery, high-pressure gas can be discharged from the exhaust hole of the upper cover, and the gas can deform the sealing gasket and is discharged outside the battery.

The utility model discloses if disclose or related to mutual fixed connection's spare part or structure, then, except that other the note, fixed connection can understand: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).

In addition, the terms used in any aspect of the present disclosure as described above to indicate positional relationships or shapes include similar, analogous, or approximate states or shapes unless otherwise stated.

The utility model provides an arbitrary part both can be assembled by a plurality of solitary component parts and form, also can be the solitary part that the integrated into one piece technology was made.

The above is only the preferred embodiment of the present invention, and all the equivalent changes and modifications made according to the claims of the present invention should be covered by the present invention.

Claims (6)

1. The utility model provides a battery with waterproof exhaust apparatus, includes the battery upper cover, its characterized in that, cover on the battery and be provided with the boss, be provided with the exhaust hole that passes the battery upper cover in the boss, the closing cap has sealed the pad on the boss, cover on and be provided with the spring mechanism that makes sealed pad sticiss on the boss.

2. The battery with the waterproof exhaust device according to claim 1, wherein the spring mechanism comprises a guide hole disposed in the boss, a guide post with an upper end connected to the gasket is disposed in the guide hole from bottom to top, and a pre-compression spring with an upper end abutting against a lower side surface of the battery upper cover is disposed on the guide post.

3. The battery with the waterproof exhaust device as claimed in claim 2, wherein the upper end of the guide pillar is provided with an annular groove, and the middle part of the sealing gasket is provided with a mounting hole for the groove to be inserted.

4. The battery with waterproof exhaust device according to claim 2 or 3, wherein the boss is an annular boss, and the middle portion of the gasket is provided with a concave portion connected with the guide pillar.

5. A battery having a waterproof exhaust apparatus as claimed in claim 1, 2 or 3, wherein the gasket material is silicone.

6. The battery with waterproof exhaust device of claim 2 or 3, wherein the material of the guide pillar is aluminum or plastic.

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