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

Active magnetic regenerator and magnetic refrigeration system

An active, recuperator technology, applied to superheaters, refrigerators, refrigeration components, etc., can solve problems such as low strength, material fatigue damage, and reduced service life

Active Publication Date: 2017-07-14
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
View PDF5 Cites 24 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the current magnetocaloric materials in room temperature magnetic refrigerators are mainly rare earth-based compounds, and these materials are generally characterized by low strength and high brittleness.
Therefore, under the repeated action of the above-mentioned magnetic torque, the material is prone to fatigue damage, which greatly reduces the service life

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
  • Active magnetic regenerator and magnetic refrigeration system
  • Active magnetic regenerator and magnetic refrigeration system
  • Active magnetic regenerator and magnetic refrigeration system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

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

[0026] see Figure 1 to Figure 4 , an active magnetic regenerator 100 in an embodiment includes a housing 10 , a rotating mechanism 20 and a magnetocaloric unit 30 . Both the rotating mechanism 20 and the magnetocaloric unit 30 are disposed in the casing 10 . The rotating mechanism 20 includes a rotating component and a fixed bracket 22 , and the fixed bracket 22 is disposed on the inner wall of the casing 10 through the rotating component 20 . The magnetocaloric unit 30 includes a plurality of parallel plate-shaped magnetocaloric materials 32 , and the magnetocaloric unit 30 is arranged on the ...

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 an active magnetic regenerator and a magnetic refrigeration system. The active magnetic regenerator comprises a shell, a rotating mechanism and a magneto-thermal unit, wherein the rotating mechanism and the magneto-thermal unit are arranged in the shell; the rotating mechanism comprises a rotating part and a fixed support, and the fixed support is arranged on the inner wall of the shell through the rotating part; and the magneto-thermal unit comprises a plurality of plate-shaped magneto-thermal materials which are arranged in parallel, and the magneto-thermal units are arranged on the fixed support. According to the active magnetic regenerator, the magneto-thermal unit is arranged inside the shell through the rotating mechanism, when the direction of an external magnetic field changes, the magneto-thermal unit synchronously rotates with the external magnetic field under the action of magnetic torque so that the direction of the external magnetic field can be always kept in the direction with the smallest demagnetization factor of the magneto-thermal materials, magnetic fields in the magneto-thermal materials are ensured to be maximized, the magneto-thermal effect of the magneto-thermal materials is fully exerted, and the optimal refrigerating performance is obtained. Meanwhile, under the action of the magnetic torque, the magneto-thermal unit rotates, so that large alternating stress is avoided inside the magneto-thermal materials, and the service life of the whole regenerator is prolonged.

Description

technical field [0001] The invention belongs to the technical field of magnetic refrigeration, and in particular relates to an active magnetic regenerator and a magnetic refrigeration system. Background technique [0002] The current mainstream refrigeration technology - vapor compression refrigeration, using CFCs, HCFCs, etc. as refrigerants, faces two environmental problems: the destruction of the ozone layer and the greenhouse effect. Magnetic refrigeration technology utilizes the magnetocaloric effect of magnetocaloric materials for refrigeration, that is, when the external magnetic field increases and the magnetocaloric material is excited, the magnetic entropy decreases, the temperature rises, and heat is released to the outside through the heat exchange fluid; when the external magnetic field decreases , when the magnetocaloric material is demagnetized, the magnetic entropy increases, the temperature decreases, and then absorbs heat from the outside through the heat t...

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 Applications(China)
IPC IPC(8): F25B40/06F25B21/00
CPCF25B21/00F25B40/06F25B2321/0022Y02B30/00
Inventor 李珂戴巍沈俊李振兴公茂琼
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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