Refrigeration cycle apparatus

Patent metadata

Field	Value
Publication number	US-11035579-B2
Application number	US-201917043222-A
Country	US
Kind code	B2
Filing date	Mar 28, 2019
Priority date	Mar 30, 2018
Publication date	Jun 15, 2021
Grant date	Jun 15, 2021

Abstract

A refrigeration cycle apparatus includes a compressor, a refrigerant cooling pipe, a refrigerant-cycle constituent component, a connecting pipe and vibration transmission suppressing portion that is disposed on the connecting pipe that connects the refrigeration-cycle constituent component or the compressor and the refrigerant cooling pipe to each other.

First claim

The invention claimed is:

1. A refrigeration cycle apparatus comprising:
a housing including a bottom member;
a second elastic member disposed on the bottom member;
a base disposed on the bottom member via the second elastic member;
a first elastic member disposed on the base;
a compressor disposed on the base via the first elastic member and configured to compress a refrigerant;
an electric component fixed to the housing and configured to drive a motor for the compressor;
a heat transfer plate fixed to the electric component;
a refrigerant cooling pipe through which the refrigerant circulate;
a refrigeration-cycle constituent component fixed to the base and disposed in a circulation path of the refrigerant; and
a connecting pipe through which the refrigerant circulates, one end of the connecting pipe being directly connected to the refrigeration-cycle constituent component or the compressor and the other end of the connecting pipe being directly connected to the refrigerant cooling pipe, with the other end of the refrigerant cooling pipe being directly connected to the compressor or another refrigeration-cycle constituent component fixed to the base and disposed in the circulation path of the refrigerant, wherein
the refrigerant cooling pipe is fixed to the heat transfer plate and is configured to cool the electric component via the heat transfer plate,
the connecting pipe includes a vibration transmission suppressing portion that suppresses vibration of the refrigeration-cycle constituent component or the compressor fixed to the base from being transmitted to the refrigerant cooling pipe, and
each refrigeration-cycle constituent component that is directly connected to the connecting pipe is one of an economizer heat exchanger, an expansion valve, a check valve, an air heat exchanger, a water heat exchanger, a four way switching valve, and a receiver, or a combination thereof.

2. The refrigeration cycle apparatus according to claim 1 ,
wherein the refrigeration-cycle constituent component that is directly connected to the connecting pipe is one that is included in a group consisting of an economizer heat exchanger, an expansion valve, and a check valve, and a receiver, or a combination thereof.

3. The refrigeration cycle apparatus according to claim 2 ,
wherein the vibration transmission suppressing portion is fixed to the housing.

4. The refrigeration cycle apparatus according to claim 2 , the refrigeration cycle apparatus further comprising:
a third elastic member disposed between the vibration transmission suppressing portion and the housing.

5. The refrigeration cycle apparatus according to claim 2 ,
wherein the vibration transmission suppressing portion is a trap including a bent portion.

6. The refrigeration cycle apparatus according to claim 2 ,
wherein the vibration transmission suppressing portion is a pipe having flexibility.

7. The refrigeration cycle apparatus according to claim 1 ,
wherein the vibration transmission suppressing portion is fixed to the housing.

8. The refrigeration cycle apparatus according to claim 7 , the refrigeration cycle apparatus further comprising:
a third elastic member disposed between the vibration transmission suppressing portion and the housing.

9. The refrigeration cycle apparatus according to claim 7 ,
wherein the vibration transmission suppressing portion is fixed to the bottom member.

10. The refrigeration cycle apparatus according to claim 9 , the refrigeration cycle apparatus further comprising:
a third elastic member disposed between the vibration transmission suppressing portion and the housing.

11. The refrigeration cycle apparatus according to claim 1 , the refrigeration cycle apparatus further comprising:
a third elastic member disposed between the vibration transmission suppressing portion and the housing.

12. The refrigeration cycle apparatus according to claim 11 ,
wherein a spring constant of the third elastic member is more than or equal to a spring constant of the second elastic member.

13. The refrigeration cycle apparatus according to claim 1 ,
wherein the vibration transmission suppressing portion is a trap including a bent portion.

14. The refrigeration cycle apparatus according to claim 1 ,
wherein the vibration transmission suppressing portion is a pipe having flexibility.

Assignees

• Daikin Ind Ltd

Inventors

• Hisayama Kazushi
• Okamoto Tetsuya
• Tsumura Yoshinobu
• Chen Kebi
• Ukibune Masanori

Classifications

• F24F1/40 Primary

  Vibration or noise prevention at outdoor units (for outdoor units compressors F24F1/12) · CPC title

• F24F1/30

  for use inside the separate outdoor units · CPC title

• F24F1/12 Primary

  Vibration or noise prevention thereof · CPC title

• F24F1/34

  Protection means thereof, e.g. covers for refrigerant pipes · CPC title

• F24F1/24

  Cooling of electric components · CPC title