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Venting device

A ventilation device and channel technology, applied in the direction of exhaust plug devices, electrical components, batteries, etc., can solve the problem of insufficient protection components

Active Publication Date: 2020-10-30
LG ENERGY SOLUTION LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the case of the pouch type (Pouch Type) secondary battery according to the related art, the protective member is not sufficiently provided

Method used

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Embodiment Construction

[0046] The advantages and features of the present invention and the implementation method thereof will be clarified through the following embodiments described with reference to the accompanying drawings. However, the present invention may be implemented in different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided to make the present disclosure comprehensive and complete, and to fully convey the scope of the present invention to those skilled in the art. In addition, the present invention is limited only by the scope of the claims. Similar reference numbers indicate similar elements throughout.

[0047] Unless the terms used in the present invention are defined differently, all terms (including technical terms and scientific terms) used herein have the same meanings as commonly understood by those skilled in the art. In addition, unless clearly and clearly defined in the specification, terms defined ...

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Abstract

A venting device which is inserted into a sealing portion of a pouch of a secondary battery, according to an embodiment of the present invention for solving the above problem, comprises: a housing which is inserted between both surfaces of the sealing portion and is sealed together with the sealing portion; a sheet which is formed inside the housing and through which a passage communicating between the inside and the outside of the pouch is formed; a plate spring which opens and closes the passage according to the internal pressure of the pouch and is made of a metal having elastic force; anda ball which is disposed between the seat and the plate spring, and opens and closes the passage while contacting or being spaced from the seat at the outlet side of the passage, wherein the ball is formed in the form of a hemisphere and attached to the inner surface of the plate spring.

Description

Technical field [0001] Cross references to related applications [0002] This application claims the priority rights of Korean Patent Application No. 10-2019-0022033 filed on February 25, 2019, and the above patent applications are incorporated herein by reference in their entirety. [0003] Technical field [0004] The present invention relates to a venting device, and more particularly, to at least one vent that is inserted into a sealing portion of a bag of a secondary battery to discharge gas in the bag to the outside, and minimizes bending of a leaf spring in a closed state Device. Background technique [0005] Generally, secondary batteries include nickel-cadmium batteries, nickel-hydrogen batteries, lithium-ion batteries, and lithium-ion polymer batteries. This kind of secondary battery is being used in such as digital camera, P-DVD, MP3P, mobile phone, PDA, portable game device (Portable Game Device), power tool (Power Tool), electric bicycle (E-bike), etc. Of small produc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/12H01M2/02H01M50/105
CPCY02E60/10H01M50/333H01M50/105H01M50/317H01M50/325H01M50/35H01M2220/10H01M2220/20H01M2220/30H01M50/30H01M50/107H01M50/10
Inventor 李在浩崔龙洙金橡熏庾亨均金奈润
Owner LG ENERGY SOLUTION LTD