Pressure regulating valve for electronic parts and electronic parts using the same

摘要

In an electronic component having an electrochemical element and a sealed container that accommodates the element, a pressure regulating valve that is disposed in a gas flow path (3) communicating from the inside of the container (1) to the outside and regulates the pressure in the container. And (a) a gas permeable member (4) that selectively permeates the gas in the container, and (b) a gas permeable member (4) that is caused by an increase and a subsequent decrease in the gas pressure in the container. A pressure regulating valve is disclosed that includes an opening and closing member (5) that opens and closes the pressure regulating valve by allowing movement in the direction. A gas-liquid separation membrane (7) that prevents the outflow of the liquid accompanying the gas when a large amount of gas flows out may be provided. The pressure regulating valve of the present invention can ensure long-term reliability without incurring deformation of the container and by suppressing permeation of the electrolyte solvent component accompanying the gas, such as a battery, an electrolytic capacitor, an electric double layer capacitor, etc. It can be used as a pressure control valve for electronic parts.