Rapid temperature control device and method based on ceramic refrigeration sheet

Abstract

The invention discloses a rapid temperature control device and method based on a ceramic refrigeration sheet. The device comprises a thermal insulation shell and a constant temperature plate arranged on one side surface of the thermal insulation shell, temperature sensors are arranged inside and outside the thermal insulation shell, and the temperature sensors are electrically connected with a controller; the ceramic refrigeration sheet is arranged in the thermal insulation shell, a first metal heating plate and a second metal heating plate are installed on the two side faces of the ceramic refrigeration sheet correspondingly, cooling fins are arranged on the surface of the first metal heating plate and the surface of the second metal heating plate correspondingly, and the inner side and the outer side of the thermal insulation shell are provided with a first fan and a second fan which are used for cooling the cooling fins correspondingly; and the controller regulates and controls work of the first fan, the second fan, the ceramic refrigeration sheet, the first metal heating plate and the second metal heating plate according to monitoring data of the temperature sensors. The fans influencing the environment temperature, the ceramic refrigeration sheet and the metal heating plates are combined to form a heating mode and a cooling mode, so that the temperature in a constant-temperature cavity is maintained to be a preset temperature value.

Description

technical field [0001] The invention relates to the technical field of temperature control systems, in particular to a rapid temperature control device and method based on ceramic refrigeration chips. Background technique [0002] Ceramic coolers, also known as semi-conductor coolers, are a tool for heat transfer. When a current flows through a thermocouple pair formed by connecting an N-type semiconductor material and a P-type semiconductor material, heat transfer will occur between the two ends, and the heat will be transferred from one end to the other end, thereby generating a temperature difference to form cold and heat. end. However, the semiconductor itself has resistance. When the current passes through the semiconductor, heat will be generated, which will affect the heat transfer. Moreover, the heat between the two plates is also reversely transferred through the air and the semiconductor material itself. When the hot and cold ends reach a certain temperature dif...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a rapid temperature control device and method based on ceramic refrigeration chips to solve the technical problems of low temperature control efficiency and unstable temperature control methods in the prior art

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