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Refrigeration cycle device

一种制冷循环、驱动装置的技术，应用在制冷机、制冷组件、制冷和液化等方向

Active Publication Date: 2018-01-02
PANASONIC INTPROP MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] R410A is often used as the above-mentioned refrigerant for refrigeration cycle equipment, but the global warming potential (GWP) of R410A refrigerant is 2090, which is relatively large, and there are problems from the viewpoint of preventing global warming.

Method used

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Experimental program
Comparison scheme
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no. 1 Embodiment approach

[0023] figure 1 A refrigeration cycle apparatus according to a first embodiment of the present invention is shown. The refrigeration cycle apparatus 100 of this embodiment is a so-called separate type air conditioner in which the indoor unit 101a and the outdoor unit 101b are connected to each other through refrigerant piping, control wiring, and the like.

[0024] The indoor unit 101a has an indoor air blower as a cross-flow fan (cross-flow fan) that blows air to the indoor heat exchanger 103 and the indoor heat exchanger 103 and blows out the air heat-exchanged by the indoor heat exchanger 103 into the room. Fan 107a. The outdoor unit 101b includes a compressor 102, an expansion valve 104 as a pressure reducing unit, an outdoor heat exchanger 105, a four-way valve 106, and an outdoor blower fan 107b as a propeller fan that blows air to the outdoor heat exchanger 105.

[0025] The indoor unit 101a has a pipe connection part 112 so that the indoor unit 101a and the outdoor u...

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Abstract

A refrigeration cycle device is equipped with a refrigeration cycle circuit wherein a compressor (102), an indoor heat exchanger (103), an expansion valve (104), and an outdoor heat exchanger (105) are connected. In addition, an operating fluid that includes R1123 (1,1,2-trifluoroethylene) and R32 (difluoromethane) is used as a refrigerant enclosed in the refrigeration cycle circuit, and an electric motor driving device that drives an electric motor of the compressor (102) is provided with a rotational frequency estimation unit. The rotational frequency estimation unit estimates the rotationalspeed on the basis of a detected value for the current input to the electric motor, or on the basis of information about the magnetic pole position of a rotor forming the electric motor.

Description

technical field [0001] The present invention relates to a refrigeration cycle device using a working fluid containing R1123. Background technique [0002] Generally speaking, the refrigeration cycle device connects compressors, four-way valves, radiators (or condensers), capillary tubes, expansion valves, etc. It circulates inside for cooling or heating. [0003] As refrigerants in these refrigerating cycle devices, there are known Freons (Freons are described as R○○ or R○○○, and are limited by the American ASHRAE34 standard. Hereinafter, they are referred to as R○○ or R○○ ○) Halogenated hydrocarbons derived from methane or ethane. [0004] R410A is often used as the above-mentioned refrigerant for refrigeration cycle apparatuses, but R410A refrigerant has a large global warming potential (GWP) of 2090, which poses a problem from the viewpoint of preventing global warming. [0005] Therefore, from the viewpoint of preventing global warming, R1123 (1,1,2-trifluoroethylene)...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B1/00F04B39/00F04B49/10F04C29/00F25B49/02
CPCF04B49/10F25B49/02F04B49/065F25B2313/02741F25B13/00F25B2700/21152F04B35/04F04B2203/0209F25B2400/0401F25B2700/1931F25B2313/006F04C23/008F04C18/356F04C28/08F04C2240/40F04C2270/07F04C2270/18F04C2210/26F04C2240/81F04C29/00F04B39/00F25B1/00F04B39/0094F04B49/106F04C29/0007F25B1/02F25B9/006
Inventor 咲间文顺藤高章中井启晶京极章弘松尾英明佐藤成广高市健二
Owner PANASONIC INTPROP MANAGEMENT CO LTD
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