Patent ID: 8733116

Claim:
An oil level detecting device provided in a compressor, the compressor comprising a compression device that introduces and compresses a working fluid, a drive device mechanically connected to the compression device that operates the compression device, and a case that accommodates the compression device and the driving device thereinside and having an oil storage space that stores oil at a lower portion thereof, the oil level detecting device comprising: a detector comprising a supporting portion configured to be attached to the case of the compressor and a detecting portion that protrudes inside the case, wherein at least one property of the detecting portion varies according to an oil level inside the case; and a signal processor comprising an electronic element having at least one reference property, that compares the at least one property of the detecting portion with the at least one reference property of the electronic element and outputs a control signal according to the result, wherein the supporting portion comprises a supporting plate installed inside a mounting hole formed at a wall surface of the case, and the detecting portion comprises a pair of electrode plates connected to the supporting plate, and wherein each of the plurality of electrode plates comprises: a conductive plate positioned at an inside of the oil storage space; and a pin that extends from the conductive plate to the supporting portion so as to electrically connect the conductive plate to the signal processor through the supporting plate, the pin being formed as a rigid body so as to support the conductive plate respective to the supporting plate.