Electrocaloric effect-based double-layer solid-state refrigeration device driven by static electricity and preparation method thereof

A solid-state refrigeration and electrostatic drive technology, which is applied to machines that use electric/magnetic effects, electric solid devices, semiconductor/solid-state device components, etc., can solve the problem of insufficient temperature difference between cold and hot modes, and improve the performance of electric cards. Effective cooling and less energy consumption

Active Publication Date: 2021-03-19
NANKAI UNIV
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Problems solved by technology

[0004] The present invention aims at the problem that the temperature difference between the hot and cold modes of the existing electrostatically driven solid-state refrigeration devices is not large enough. The present invention provides an electrostatically driven double-layer solid-state refrigera

Method used

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  • Electrocaloric effect-based double-layer solid-state refrigeration device driven by static electricity and preparation method thereof
  • Electrocaloric effect-based double-layer solid-state refrigeration device driven by static electricity and preparation method thereof
  • Electrocaloric effect-based double-layer solid-state refrigeration device driven by static electricity and preparation method thereof

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] See attached figure 1 , the composition and function of each part in the double-layer solid-state refrigeration device structure based on the electric card effect of the present invention's electrostatic drive: the uppermost layer and the lowermost layer are two layers of 30um polyimide tapes, which are used for the upper and lower graphene coating electrodes of the device and The heat source and heat sink are electrically insulated; the upper, middle and lower layers of graphene coatings are all prepared on the 50um PET tapes of the upper, middle, lower and middle heat transfer layers by the scraping method, and are formed after drying on a hot table. The graphene electrode of the dielectric layer is used to apply an electrostatic field to the double-layer polymer stack to make it reciprocate between the heat source, the heat sink and the intermediate heat tran...

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Abstract

The invention provides an electrocaloric effect-based double-layer solid-state refrigeration device driven by static electricity and a preparation method thereof, belongs to the technical field of solid-state refrigeration, and relates to a method for improving electrocaloric performance of a ferroelectric polymer P (VDF-TrFE-CFE) and preparation of a double-layer static-electricity-driven solid-state refrigeration device. A small solid-state refrigeration device comprises an insulating polyimide adhesive tape at the uppermost layer and an insulating polyimide adhesive tape at the lowermost layer, three layers of graphene coatings, four PET adhesive tape dielectric layers and four PDMS frames. According to the small solid-state refrigeration device provided by the invention, the refrigeration capacity of an electrocaloric effect-based refrigerator driven by static electricity is further improved by modifying an electrocaloric material and making the electrocaloric material into a two-layer structure, and a solution is provided for cooling of a microelectronic device.

Description

technical field [0001] The invention belongs to the technical field of solid-state refrigeration, and relates to a method for improving the electric card performance of a ferroelectric polymer P (VDF-TrFE-CFE) and the preparation of a double-layer electrostatically driven solid-state refrigeration device. Background technique [0002] With the improvement of chip integration, the problem of thermal failure caused by heat accumulation during chip operation becomes more and more serious. At present, the traditional refrigeration technology based on the vapor compression cycle, due to the existence of the compressor, it is difficult to miniaturize to meet the refrigeration needs of highly integrated microelectronic devices, and the extensive use of refrigerants such as chlorofluorocarbons (CFCS) will also lead to ozone depletion and the greenhouse effect. And other environmental problems, and relatively low coefficient of performance (COP) also limits its application in small e...

Claims

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Application Information

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IPC IPC(8): F25B21/00H01L23/373G06F1/20
CPCF25B21/00H01L23/373G06F1/20F25B2321/00F25B2500/12Y02B30/00
Inventor 马儒军薄轶文张权
Owner NANKAI UNIV
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