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Regenerative electrocaloric cooling device

A card device, electric card technology, applied in refrigerators, refrigeration and liquefaction, lighting and heating equipment, etc., can solve the problems that the material properties of electric cards cannot be fully utilized, the application effect is not particularly ideal, etc., and achieves easy implementation and improved refrigeration. Power and efficiency, simple process effect

Active Publication Date: 2015-01-21
程爱兰 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Although the electric card material has great potential for improving the cooling power (that is, cooling efficiency) in the refrigeration equipment, the application effect of the electric card material is not particularly ideal when the existing electric card refrigeration equipment is used, and it cannot fully Give full play to the good performance of the electric card material

Method used

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  • Regenerative electrocaloric cooling device
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  • Regenerative electrocaloric cooling device

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Embodiment Construction

[0036] In order to clearly describe the thermoelectric card refrigeration device, the following terms and definitions apply throughout the specification.

[0037] T H (T h ): the temperature of the heat sink (hot end) of the electric card cooling device.

[0038] T c (T L ): the cooling load (cold junction) temperature of the electric card cooling device.

[0039] E. H (E h ): the maximum electric field acting on the cooling device in the embodiment of the present invention.

[0040] E. L (or E L =0): the minimum electric field acting on the cooling device in the embodiment of the present invention.

[0041] ΔE=E H -E L : Indicates the change of the electric field.

[0042] Electric snap ring: The outer diameter (OD), inner diameter (ID) of the ring electric card assembly, the thickness is d, and the electric snap ring has multiple electric snap rings separated by low thermal conductivity (k<0.2W / mK) spacers. Card fragment.

[0043] Area with or without electric ...

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Abstract

The invention provides a regenerative electrocaloric device, comprising an upper electrocaloric ring supported by a center shaft and a lower electrocaloric ring supported by a support shaft. The upper and lower electrocaloric rings are arranged in a stacked manner. The upper and lower electrocaloric rings are in opposite rotary contact with each other and comprise a high electric field region and a low electric field region which are spaced apart by a spacer. The high electric field region and the low electric field region in the upper and lower electrocaloric rings are arranged oppositely and supplied with power to form a hot end and cold end. Each of the hot end and the cold end is connected with a thermal load, and a low thermal-conductivity layer for preventing dissipation of heat is arranged between the two thermal loads. Thanks to the combination of the structure and configuration, the regenerative energy saving and environment benefiting problems are solved; and the good effects of simple technology, cooling power and efficiency improvement, and energy saving and environment protection are achieved.

Description

technical field [0001] The invention provides a heat recovery electric card refrigeration device, in particular to a heat recovery electric card refrigeration device made of a rotatable electric card material ring. Background technique [0002] Typically, climate conditioning equipment such as heat pumps, refrigerators, and air conditioners is cooled by a mechanical vapor compression cycle. This kind of refrigeration system is not only inefficient, but also consumes a lot of energy, and the gases that produce the greenhouse effect have a great impact on the environment. Climate-conditioning equipment that improves energy efficiency, reduces costs, and protects the environment has become a new topic of business research. [0003] The electrical card effect is a result of the direct coupling between thermal properties (such as entropy and temperature) and electrical properties (such as electric field and polarization) of insulating dielectric materials. In this type of mater...

Claims

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Application Information

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IPC IPC(8): F25B21/00
CPCF25B21/00Y02B30/00
Inventor 程爱兰章启明
Owner 程爱兰
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