VALVE STRUCTURE, OPENING-SEALING MEMBER, POWER STORAGE DEVICE, AND MANUFACTURING METHOD THEREFOR
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United States of America Patent
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Issued Date -
Apr 18, 2024
app pub date -
Feb 24, 2022
filing date -
Feb 26, 2021
priority date (Note) -
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status (Latency Note)
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Abstract
Included are: a cylindrical body (cylindrical portion 16) provided with a shaft portion (18); and a first valve body (11) that is in close contact with the shaft portion to close an opening portion (22) of the cylindrical body, and is separated from the shaft portion when pressure (P) in the cylindrical body rises to a threshold (Pth) or higher by gas that has entered the cylindrical body, to release the gas from the cylindrical body to the outside. The valve body includes a closing portion (40) that receives the pressure (P) of the gas in the cylindrical body. The pressure received by the closing portion (40) serves as a valve opening force. As a result, the discharge characteristics of the gas filling a case are improved to enhance a pressure regulation function.
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