Small semiconductor refrigeration refrigerator with heat preservation and sterilization functions

Abstract

The invention discloses a small semiconductor refrigeration refrigerator with heat preservation and sterilization functions, and provides the following scheme aiming at the problems that cold air in a cold fresh area can be quickly dissipated and fruits and vegetables can be quickly rotted in the closed cold fresh area when an electric power factor fault or a semiconductor refrigeration fault occurs: the small semiconductor refrigeration refrigerator comprises a refrigerator body, wherein a cold fresh area and a freezing area are arranged on the inner wall of the refrigerator body; an isolation buffer box is arranged between the cold fresh area and the freezing area; an aqueous solution is arranged in the isolation buffer box; through holes distributed at equal intervals are formed in the outer wall of the top of the isolation buffer box; polyurethane foam balls are arranged in the isolation buffer box; and the polyurethane foam balls are matched with the inner walls of the through holes. According to the refrigerator, a flexible heat preservation interlayer is arranged by means of the volume difference between the frozen aqueous solution and the liquid aqueous solution in cooperation with the polyurethane foam balls, low temperature in the freezing area can enter the cold fresh area from the gaps when a refrigeration fault occurs, and rotting of vegetables and fruits in the cold fresh area is effectively delayed.

Description

technical field [0001] The invention relates to the technical field of semiconductor refrigeration, in particular to a semiconductor refrigeration small refrigerator with heat preservation and sterilization functions. Background technique [0002] At present, semiconductor refrigeration, also known as electronic refrigeration, or thermoelectric refrigeration, is a discipline developed from the 1950s between refrigeration technology and semiconductor technology. It uses P-N junctions composed of special semiconductor materials to form thermocouple pairs, generating The Peltier effect, a new refrigeration method through direct current refrigeration, is known as the world's three major refrigeration methods together with compression refrigeration and absorption refrigeration. In 1834, the French physicist Peltier connected a bismuth wire to each end of the copper wire, and then connected the two bismuth wires to the positive and negative poles of the DC power supply respectivel...

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Problems solved by technology

[0003] The existing semiconductor refrigeration small refrigerators with heat preservation and sterilization functions have the following problems: most refrigerators have cold and fresh areas and freezing areas. In the fresh area, it will lead to faster spoilage of fruits and vegetables, and the existing patents are not easy to solve such problems. Therefore, there is an urgent need for a semiconductor refrigeration mini-refrigerator with heat preservation and sterilization functions to solve the above problems

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