Pressure sensing apparatus for airbag

A pressure sensing apparatus for an airbag, comprising:

• a sensor element configured to measure a change of air pressure resulting from a vehicle collision;
• a housing having the sensor element seated therein, and comprising a terminal part electrically connected to the sensor element, wherein the housing is fixed to a vehicle body;
• a cover detachably installed on the housing;
• and
• an elastic pressing part having one side connected to the cover and the other side protruded toward the sensor element to press the sensor element,
• wherein:
• the elastic pressing part comprises an elastically deformable material;
• the housing comprises a support protrusion, the support protrusion and the terminal part being configured to support a bottom of the sensor element;
• the housing comprises:
• a housing body having a mounting groove in which the sensor element is seated;
• and
• a connector extending from the housing body and comprising a connector terminal formed therein, the connector terminal being connected to the terminal part;
• the support protrusion protrudes from a base surface of the housing body toward the sensor element and supports one side of the sensor element, and the terminal part supports the other side of the sensor element;
• the housing body further comprises a guide groove and a hook member, the hook member being formed on the cover, and inserted and hooked to the guide groove;
• and
• the guide groove comprises:
• a first guide groove configured to guide the hook member to move straight, the hook member being inserted into the housing body;
• and
• a second guide groove comprising an inclined guide surface, the hook member configured to move along the inclined guide surface and toward the elastic pressing part, and then be hooked to an inside of the housing.