Rotary compressor and refrigeration cycle device

A compressor and rotary technology, which is applied in the field of compressors, can solve the problems of increased defrosting operation time, deterioration of air-conditioning room temperature control, motor failure to start, etc., and achieves the effects of improving APF, low cost, and energy saving

Active Publication Date: 2021-02-26
GUANGDONG MEIZHI COMPRESSOR
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the problem of the rotary compressor whose internal pressure of the closed shell is high pressure is that if the shell pressure or discharge pressure is not equal to the suction pressure of the compression chamber, the motor cannot be started.
As a result, there will be disadvantages such as the deterioration of the room temperature control of the air conditioner and the increase in the defrosting operation time necessary for heating operation, and these problems will also become the cause of affecting the annual power efficiency (APF)

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Rotary compressor and refrigeration cycle device
  • Rotary compressor and refrigeration cycle device
  • Rotary compressor and refrigeration cycle device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0033] In describing the present invention, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", " The orientation or positional relationship indicated by "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, It is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a rotary compressor and a refrigeration cycle device. The rotary compressor comprises a closed shell, an exhaust pipe, an air suction pipe, a pressure equalizing device and a liquid storage device; a motor and a compression mechanism part driven by the motor are arranged in the shell; a hole is formed in the shell via the exhaust pipe; the air suction pipe is connected withthe compression mechanism part; the pressure equalizing device is communicated with the interior of the shell and the air suction pipe; and the liquid storage device is connected with the air suctionpipe outside the shell and a first check valve device. When the motor stops, a bypass hole of the pressure equalizing device is opened, the first check valve device is closed, and air in the shell flows into the air suction pipe or the liquid storage device. According to the rotary compressor, the restart time of the rotary compressor can be greatly shortened, the APF (Annual Performance Factor)can be further improved, the pressure equalizing device and the first check valve device can be automatically controlled through the pressure difference, the cost is low, the reliability is high, electric control is not needed, and energy saving is facilitated.

Description

technical field [0001] The invention relates to the field of compressors, in particular to a rotary compressor and a refrigeration cycle device. The present invention relates to a technique for greatly reducing the restart time of a rotary compressor that increases the internal pressure of a hermetic casing to a high pressure. Utilizing this technology can improve capacity control and annual energy performance (APF) of air conditioning units and refrigeration units. Background technique [0002] Under conditions such as air-conditioning room temperature control and defrosting operation, the compressor will frequently start and stop repeatedly. However, a problem with the rotary compressor in which the internal pressure of the closed casing is high pressure is that if the casing pressure or discharge pressure is not equal to the suction pressure of the compression chamber, the motor cannot be started. [0003] Therefore, it takes about 4 minutes to restart the compressor af...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F04C23/02F04C18/356F04C29/12F04C29/06F04C28/26F25B1/04
CPCF04C23/02F04C18/3562F04C29/12F04C29/06F04C28/26F25B1/04
Inventor小津政雄高斌王玲
OwnerGUANGDONG MEIZHI COMPRESSOR