| 摘要 |
PURPOSE:To improve a soundproofing effect by a method wherein the compressor is accommodated in the case of a plastic series and the inner space of the case is evacuated. CONSTITUTION:The case 9 accommodating the compressor 1 is made of a material of plastics series and the space 10 between the compressor 1 and the case 9 of plastics is evacuated. According to this constitution, noises from the compressor 1 and the surface of the pipe are not propagated to the case 9. However, vibration is propagated to the case 9 through the compressor 1, anti-vibration rubbers 12 and, further, to a discharging pipe 2, a suction pipe 6 and capillary tubes 8 for injection even though they are shaped into anti-vibration configurations. However, the case 9 is made of a material of plastics, therefore, the vibration restraining effect thereof is high and it will never become the source of sound easily. Furthermore, the case 9 is prevented from vibration by legs 13 and the anti-vibration rubbers 14, therefore, the vibration transmitted to the base plate 15 is very little. |
