Abstract: A motor actuator includes a housing that contains a motor, a sensor contained in the housing, and a transmission path capable of continuously transmitting a detection signal generated by the sensor. The housing has an insertion hole formed therein, and the insertion hole is capable of receiving a probe for taking out the detection signal from the transmission path. The detection signal of the sensor can be directly taken out from the transmission path through the probe. Accordingly, the detection signal of the sensor can be measured continuously with respect to a temporal change, and the accuracy in inspecting the output characteristics of the sensor can be increased.

Abstract: An object of the invention is to provide a low-cost in-car sensor equipped with an aspirator fan motor, which is capable of detecting temperature and humidity. A thermistor for detecting temperature and a humidity sensor are arranged at desired positions on a mounting board, and the temperature and humidity of air drawn from an air inlet port and exhausted from an air outlet port are detected. At the same time, the use of electronic circuit components forming a voltage regulator circuit and a filter circuit for coping with electromagnet interference which have been employed in a brushless motor drive circuit for the aspirator fan motor is shared by the humidity sensor. This makes it possible to reduce the number of electronic circuit components necessary for the humidity sensor, and provide a low-cost in-car sensor equipped with an aspirator fan motor, enabling construction of a more inexpensive automotive air conditioner.

Abstract: An object of the invention is to provide a low-cost in-car sensor equipped with an aspirator fan motor, which is capable of detecting temperature and humidity. A thermistor for detecting temperature and a humidity sensor are arranged at desired positions on a mounting board, and the temperature and humidity of air drawn from an air inlet port and exhausted from an air outlet port are detected. At the same time, the use of electronic circuit components forming a voltage regulator circuit and a filter circuit for coping with electromagnet interference which have been employed in a brushless motor drive circuit for the aspirator fan motor is shared by the humidity sensor. This makes it possible to reduce the number of electronic circuit components necessary for the humidity sensor, and provide a low-cost in-car sensor equipped with an aspirator fan motor, enabling construction of a more inexpensive automotive air conditioner.