Method and device for regulating near-field heat transfer by radiation of micro-nano flat plates through magnetic field

A technology of near-field radiation and magnetic field regulation, applied in the direction of microstructure devices, manufacturing microstructure devices, measuring devices, etc.

Pending Publication Date: 2021-09-10
SOUTH CHINA NORMAL UNIVERSITY
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, people have invested a lot of energy to develop an active control scheme for near-field heat flow, and changing the gap between objects is a direct and effective method. However, in nanoscale spacing, in or

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
  • Method and device for regulating near-field heat transfer by radiation of micro-nano flat plates through magnetic field
  • Method and device for regulating near-field heat transfer by radiation of micro-nano flat plates through magnetic field
  • Method and device for regulating near-field heat transfer by radiation of micro-nano flat plates through magnetic field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] In conjunction with the following principles, embodiments and accompanying drawings further elaboration of the present invention.

[0020] First, we studied effect of magnetic field on the near-field radiation heat transfer plate micro-nano structures, and then through a layer of graphene on micro-nano plated plate structure, the magnetic field increases the range of the near-field radiation heat transfer regulation.

[0021] Changing the magnetic field near the theoretical basis of thermal radiation is a function of the magnetic field affecting the dielectric surface of the magneto-optic material will change the influence of the dielectric function of photon tunneling, tunneling of photons in turn affect the heat radiating near field of the main variables . Therefore, we can heat radiated by adjusting the near-field magnetic field strength to flexible regulation.

[0022] Near field radiation experiments mainly at room temperature, the performance of the magneto-optical ch...

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

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Login to view more

Abstract

The invention discloses a method and device for regulating near-field heat transfer by radiation of micro-nano flat plates through a magnetic field. According to the method, a layer of graphene is laid on each of the opposite faces of the two micro-nano flat plates and used for increasing the control range of the magnetic field on near-field heat transfer by radiation, and the near-field heat transfer by radiation of the micro-nano flat plates is regulated by adjusting thermal magnetic resistance or a gap between the two micro-nano flat plates. The device is provided with two InSb micro-nano flat plates with the same doping concentration and each with a thickness of 0.5 mm, a layer of graphene is laid on each of the opposite surfaces of the two InSb micro-nano flat plates, and the distance between the two layers of graphene is 10-300 nm. Near-field heat radiation is regulated through an external magnetic field, so that high efficiency, temperature independence and non-contact are achieved, non-contact active regulation of near-field heat transfer by radiation between micro-nano structures are achieved, and the method has application value for microelectronic devices or thermophotovoltaic devices and the like.

Description

Technical field [0001] The present invention relates to a method and apparatus for regulation of micro-nano plate by the magnetic field near-field radiation heat transfer. Background technique [0002] Near-field radiation heat transfer in many areas have a wide range of applications, such as thermal photovoltaic, thermal imaging, heat-assisted magnetic recording, thermal radiation cooling and management. In practical applications of how the flexibility to regulate the heat radiating near-field it has been the focus of a study. Currently, people have put a lot of effort to develop a near-field active heat control scheme, the gap between the objects is a direct and effective method of changing, however, the pitch at the nanometer level, in order to meet the requirements of the modulation effect, It must be accurately controlled (at sub-nanometer resolution should be), since the heat flux is very sensitive to changes in clearance gap, which is quite challenging. Change compared to ...

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): B81B7/00B81C1/00
CPCB81B7/0009B81B7/0083B81C1/0069
Inventor 何赛灵陈肇扬史可樟
Owner SOUTH CHINA NORMAL UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap