Air bag sensor assembly

An air bag sensor assembly that detects a crash impact of a vehicle so as to control an air bag module in accordance with a detected signal, comprising:

• a holder that is screw-engaged with a sensor mounting portion of a vehicle body structure having a closed section;
• and
• a sensor module that includes a touch sensor that is disposed in the closed section of the vehicle body to be spaced from a transformation part thereof, and is fixed to the holder, the holder includes:
• a head portion that supports the sensor mounting portion of the vehicle body structure;
• and
• a shank portion that is integrally connected to the head portion and is engaged with an engagement hole that is formed in a sensor mounting portion of the vehicle body structure to fix the sensor module,
• the shank portion has a screw thread that is engaged with the engagement hole at an external circumference and a fixation groove to fix the sensor module,
• the head portion has a wiring hole that is connected to the fixation groove,
• the sensor module includes a sensor support rod to which the touch sensor is fixed at one end portion thereof,
• the other end portion of the sensor support rod is inserted into the fixation groove of the shank portion, and
• the sensor support rod has a guide hole that guides wiring, which is connected to the touch sensor and passes the guide hole and, to the wiring hole, and the guide hole is connected to the wiring hole.