Heat cycle system

Patent metadata

Field	Value
Publication number	US-10174971-B2
Application number	US-201715419074-A
Country	US
Kind code	B2
Filing date	Jan 30, 2017
Priority date	Aug 12, 2014
Publication date	Jan 8, 2019
Grant date	Jan 8, 2019

Abstract

A heat cycle system 10 which has a circulation path in which a working fluid for heat cycle containing trifluoroethylene is circulated from a compressor 11 via a condenser 12, an expansion valve 13 and an evaporator 14 to the compressor 11, wherein a conductor wire provided in the circulation path is covered with a heat resistant material having a heat resistance of at least 300° C.

First claim

What is claimed is:

1. A heat cycle system, comprising:
a working fluid for heat cycle comprising trifluoroethylene;
a compressor which comprises:
an outer shell;
a driver provided on an inside of the outer shell;
a power supply terminal provided on the outer shell and capable of supplying an electric power from an external power source; and
a conductor wire provided on the inside of the outer shell and connecting the driver and the power supply terminal;

a condenser;
an expansion valve;
an evaporator; and
circulation path in which the working fluid is circulated from the compressor via the condenser, the expansion valve and the evaporator to the compressor,
wherein the conductor wire is covered with a heat resistant material having a heat resistance of at least 300° C., and the heat resistance material is a blend of at least one inorganic material selected from the group consisting of an inorganic powder and an inorganic fiber, and at least one heat resistant resin selected from the group consisting of a polytetrafluoroethylene resin, a silicone rubber, a silicone resin, a polyimide resin, a polyetherimide resin, a polyamide imide resin, a polybenzimidazole resin, a polyether ether ketone resin, a polyphenylene sulfide resin, a polyamide resin, a polybutylene terephthalate resin, an acetylcellulose resin, an allyl resin, and a diallyl phthalate resin.

2. The heat cycle system according to claim 1 , wherein the at least one inorganic material is selected from the group consisting of mica, asbestos, alumina, silica glass, and a combination thereof, and the at least one heat resistant resin is selected from the group consisting of a polyimide resin, a polyetherimide resin, a polyamide imide resin, and a combination thereof.

3. The heat cycle system according to claim 1 , wherein the at least one inorganic material is selected from the group consisting of mica, asbestos, alumina, and silica glass, quartz, magnesium oxide, and a combination thereof.

4. The heat cycle system according to claim 1 , wherein the outer periphery of the conductor wire covered with the heat resistant material is further protected with a silicone resin.

5. The heat cycle system according to claim 1 , wherein a content of the trifluoroethylene in the working fluid is larger than 50 mass %.

6. The heat cycle system according to claim 5 , wherein a content of the trifluoroethylene in the working fluid is larger than 60 mass %.

7. The heat cycle system according to claim 1 , wherein the working fluid further comprises at least one selected from the group consisting of difluoromethane, 1,1,1,2-tetrafluoroethane and pentafluoroethane.

8. The heat cycle system according to claim 1 , wherein the working fluid further comprises at least one selected from the group consisting of 2,3,3,3-tetrafluoro-l-propene, trans-1,2-difluoroethylene and cis-1,2-difluoroethylene.

9. The heat cycle system according to claim 1 , wherein the working fluid is a mixed fluid of trifluoroethylene and difluoromethane.

10. The heat cycle system according to claim 1 , wherein the working fluid is a mixed fluid of trifluoroethylene, difluoromethane and 2,3,3,3-tetrafluoro-1-propene.

11. The heat cycle system according to claim 1 , which is a refrigerating apparatus, an air-conditioning apparatus, a power generation system, a heat transport apparatus or a secondary cooling machine.

12. The heat cycle system according to claim 1 , which is a room air-conditioner, a store package air-conditioner, a building package air-conditioner, a plant package air-conditioner, a gas engine heat pump, a train air-conditioning system, an automobile air-conditioning system, a built-in showcase, a separate showcase, an industrial fridge freezer, an ice making machine or a vending machine.

13. The heat cycle system according to claim 1 , wherein the compressor is configured to compress the working fluid in the outer shell.

Assignees

• Asahi Glass Co Ltd
• Agc Inc

Inventors

• Ueno Katsuya
• Hayamizu Hiroki
• Okamoto Hidekazu
• Ippommatsu Masamichi

Classifications

• F24F1/08

  Compressors specially adapted for separate outdoor units · CPC title

• F04B39/00

  Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 · CPC title

• C09K2205/122

  Halogenated hydrocarbons · CPC title

• F04D17/10

  for compressing or evacuating · CPC title

• F04C29/0085

  Prime movers · CPC title