Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Refrigeration system of refrigerator and its defrosting control method

A control method and refrigerator technology, applied in the direction of refrigeration and liquefaction, refrigerators, refrigeration components, etc., can solve the problems of inability to refrigerate and reverse cycle defrost switching, low exhaust pressure, etc., to improve defrosting efficiency and reduce temperature rise , Reduce the effect of defrosting power consumption

Active Publication Date: 2020-11-24
GREE ELECTRIC APPLIANCES INC
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention proposes a refrigerator refrigeration system and its defrosting control method to solve the problem in the prior art that when the ambient temperature is low, the refrigerator system cannot adopt four-way valve reversing for refrigeration and reverse cycle defrosting due to low exhaust pressure. Issue switching between frosts

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
  • Refrigeration system of refrigerator and its defrosting control method
  • Refrigeration system of refrigerator and its defrosting control method
  • Refrigeration system of refrigerator and its defrosting control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the following specific examples are only used to explain the present invention, but not to limit the present invention.

[0026] figure 1 A refrigerator system with a refrigerant heating module proposed by the present invention is shown. The system includes a compressor 1 , a condenser 2 , a throttling device 3 , an evaporator 4 , a four-way valve 6 and a refrigerant heating module 7 . In this embodiment, the refrigerant heating module adopts an electric heating device and is arranged on the outlet pipe of the condenser (according to the cooling flow direction), and is connected in series between the condenser 2 and the throttling device 3 . The refrigerant heating module 7 can also be connected in series on the pipeline between...

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 refrigerator refrigeration system and a defrosting control method. The refrigerator refrigeration system includes a condenser, a throttling device and a four-way valve, wherein a refrigerant heating module is arranged on a connecting pipeline, on the side of the throttling device, of the condenser and the four-way valve, and the refrigerant heating module is used for heating a refrigerant when the exhaust pressure of the system is low and the direction the four-way valve cannot be changed. According to the refrigerator refrigeration system, by arranging the refrigerant heating module, the refrigerant is heated when the exhaust pressure is low, the direction changing control over the four-way valve is ensured, reverse cycle defrosting is realized, and the fresh-keeping effect of a refrigerator is improved.

Description

technical field [0001] The invention relates to the technical field of refrigeration, in particular to a refrigerator refrigeration system and a defrosting control method thereof. Background technique [0002] Air-cooled refrigerators have an automatic defrosting function, and the commonly used defrosting method is electric heater defrosting. The electric heating tube is arranged under the evaporator, and the evaporator is defrosted by heating the air to form natural convection and the heat radiation of the electric heating tube. The defrosting efficiency is low, the defrosting time is long, and the defrosting power consumption is high. During the defrosting period, affected by the hot air of natural convection, the temperature of the freezer rises higher, the speed of bacterial reproduction is accelerated, and the shelf life of ingredients is shortened. [0003] Chinese patent 200420051976.3 discloses a refrigerator using a four-way valve for defrosting. The refrigerator i...

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
Patent Type & Authority Patents(China)
IPC IPC(8): F25D21/06F25B47/02
CPCF25B47/02F25B2347/02F25D21/06
Inventor 卢起彪刘华韩鹏邓涵
Owner GREE ELECTRIC APPLIANCES INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com