| 摘要 |
PROBLEM TO BE SOLVED: To reduce any vibration in an indoor machine casing occurred owing to rotary vibration force of an air fan apparatus as exciting force without use of a means for high rigidity and attenuation application to a casing in an indoor machine of an air conditioner. SOLUTION: Taking notice of a specific natural vibration mode with which vibration of a casing is emphasized, a revolution center of an air fan apparatus 1, 2 supported in the casing is defined at a position where a loop of the natural vibration mode is avoided, and vibration response magnification is reduced, compared with the case where a rotation center point of the air fan apparatuses 1, 2 is existent at a loop of the vibration mode. Thus, vibration of the top plate is reduced. |
