Vibration reducing device of air conditioning machine

TLDR: In this paper, a dynamic vibration reducer is used to absorb the vibration of an air conditioning machine by aligning its natural vibration frequency almost to a rotary frequency or the like of the compressor.

Abstract: PURPOSE:To absorb vibration of an air conditioning machine, by setting a dynamic vibration reducer to the wall surface of an enclosed vessel of a compressor, fixing a weight to the dynamic vibration reducer through an elastic member and aligning a primary natural vibration frequency of the dynamic vibration reducer to a rotary frequency or the like of the compressor. CONSTITUTION:A weight 6a is provided to the end of an elastic member 6b of a dynamic vibration reducer 6, set to a compressor 1, and embedded to a hollow 4a in a separator plate 4. The dynamic vibration reducer 6, set to an enclosed vessel by aligning its natural vibration frequency almost to a rotary frequency or the like of the compressor 1, is vibrated in a reverse phase to vibration of the compressor 1, and reaction torque in supplied to the compressor 1 through the elastic member 6b. In a setting place of the dynamic vibration reducer 6, torque due to vibration of the compressor 1 and reaction torque fed from the dynamic vibration reducer 6 are cancelled with each other, and a node of vibration is generated, as a result, overall vibration of the compressor 1 can be reduced.