Ventilator having an abnormal operation indication device

Details Ventilator having an abnormal operation indication device Ventilator having an abnormal operation indication device

2005-01-18

2005-01-18

Martin, David (Department: 2837)

Electricity: motive power systems

Plural diverse motor controls

Running-speed control

C318S055000, C318S059000, C318S257000, C318S471000, C318S786000, C318S800000, C236S049100, C236S049200

Reexamination Certificate

active

06844691

ABSTRACT:
A ventilator having an abnormal operation indication device includes a power supply circuit, a central processing unit, a fan motor, and a load sensing circuit. Thus, the load sensing circuit detects the abnormal operation signals through the sensor, so that the abnormal operation indication lamp on the panel of the ventilator lights, so as to indicate that the part of the ventilator is disposed at an abnormal operation state and needs to be inspected and amended, thereby facilitating inspection and maintenance of the parts of the ventilator.

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