Temperature probe for air conditioning device

Details Temperature probe for air conditioning device Temperature probe for air conditioning device

G - Physics

01

K

73/72

G01K 7/00 (2006.01) F25D 21/02 (2006.01) G01K 17/08 (2006.01)

Patent

CA 1150529

Temperature Probe for Air Conditioning Device Abstract A temperature probe for use with an air condi- tioning device of the type including a heat exchnager subject to possible freeze-up, such as an evaporator tube array. The probe includes a substantially rigid support member having an elongated portion with a temperature sensor mounted thereto, as within a re- cess therein, for insertion into the tube array. Electrical temperature signals from the sensor are transmitted, as by electrical leads, to a use loca- tion and device. The rigid support member of the probe includes a limiting portion extending trans- versely of the elongated portion for limiting inser- tion into the tube array and thereby positioning the sensor. A second temperature sensor may be located on the support member so as to be external of the tube array for developing the air temperature signal. Both sensors may be thermistors. The elongated por- tion of the support member is sized for close-fitting insertion between a pair of fins which normally ex- tend transversely of the tube runs. A protective covering may insulate the sensors and electrical leads from mechanical damage and/or electrical con- tact with the fins.

398420

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