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Device and method for improving microwave heating efficiency

A microwave heating, efficient technology, applied in the field of microwave applications

Active Publication Date: 2021-03-16
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The object of the present invention is to provide a device and method for improving the microwave heating efficiency in view of the above disadvantages, and to solve how to make the microwave concentrate energy to the area of ​​the medium to be heated, reduce the reflection and improve the energy utilization rate and efficiently absorb the microwave energy, Use and other issues

Method used

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  • Device and method for improving microwave heating efficiency
  • Device and method for improving microwave heating efficiency
  • Device and method for improving microwave heating efficiency

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Embodiment 1

[0030] See attached Figure 1~4 . A device for improving microwave heating efficiency, comprising a metal shell 1; a feed port 2 is provided on the metal shell 1; the feed port 2 is used to input microwaves into the metal shell 1; Material structure layer 3; the center of the metamaterial structure layer 3 is provided with a heated space 4; the relative permittivity of the metamaterial structure layer 3 gradually increases from the outside to the inside material, so that the microwaves passing through the metamaterial structure layer 3 are collected In the heated space 4. It can be seen from the above structure that the microwave source inputs microwaves to the feed port 2, and after the microwaves enter the metal shell 1, they are collected in the heated space 4 when passing through the metamaterial structure layer 3, and the heated objects in the heated space 4 continuously absorb the collected energy. Microwave, the special structure of the metamaterial structure layer 3 ...

Embodiment 2

[0032] See attached Figure 1~4 . A device for improving microwave heating efficiency, comprising a metal shell 1; a feed port 2 is provided on the metal shell 1; the feed port 2 is used to input microwaves into the metal shell 1; Material structure layer 3; the center of the metamaterial structure layer 3 is provided with a heated space 4; the relative permittivity of the metamaterial structure layer 3 gradually increases from the outside to the inside material, so that the microwaves passing through the metamaterial structure layer 3 are collected In the heated space 4. It can be seen from the above structure that the microwave source inputs microwaves to the feed port 2, and after the microwaves enter the metal shell 1, they are collected in the heated space 4 when passing through the metamaterial structure layer 3, and the heated objects in the heated space 4 continuously absorb the collected energy. Microwave, the special structure of the metamaterial structure layer 3 ...

Embodiment 3

[0035] See attached Figure 1~4 . A device for improving microwave heating efficiency, comprising a metal shell 1; a feed port 2 is provided on the metal shell 1; the feed port 2 is used to input microwaves into the metal shell 1; Material structure layer 3; the center of the metamaterial structure layer 3 is provided with a heated space 4; the relative permittivity of the metamaterial structure layer 3 gradually increases from the outside to the inside material, so that the microwaves passing through the metamaterial structure layer 3 are collected In the heated space 4. It can be seen from the above structure that the microwave source inputs microwaves to the feed port 2, and after the microwaves enter the metal shell 1, they are collected in the heated space 4 when passing through the metamaterial structure layer 3, and the heated objects in the heated space 4 continuously absorb the collected energy. Microwave, the special structure of the metamaterial structure layer 3 ...

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Abstract

The invention discloses a device and method for improving microwave heating efficiency, and belongs to the technical field of microwave application. The device comprises a metal shell. The metal shellis provided with a feed port; the feed port is used for inputting microwaves into the metal shell; a metamaterial structure layer is arranged in the metal shell; a heated space is formed in the center of the metamaterial structure layer; the relative dielectric constants of the metamaterial structure layer are gradually increased from outside to inside, so that microwaves passing through the metamaterial structure layer are gathered in a heated space. According to the device and method for improving the microwave heating efficiency, microwave energy input into the metal shell can be concentrated in a heated space, the heating speed is high, and the energy utilization rate is high.

Description

technical field [0001] The invention belongs to the field of microwave application technology, and in particular relates to a device and method for improving microwave heating efficiency. Background technique [0002] Microwave heating is a new type of heating method. When the polar medium is placed in the electromagnetic field, the polar molecules that make up the dielectric material will rearrange with the direction of the constantly changing high-frequency electric field. In this rearrangement process, it is necessary to overcome the original thermal motion of the molecules and the interference between molecules And resistance, similar to the action of friction, thus generating a lot of heat. The microwave heating process is that the microwave energy directly acts on the heated substance, which is a "cold heat source", which is very different from the traditional way of heat transfer on the surface of the medium. [0003] During microwave heating, the shape and position...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B6/64
CPCH05B6/64H05B6/6402
Inventor 朱铧丞杨阳
Owner SICHUAN UNIV
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