Sectional-type micro-fluidic chip temperature control apparatus

Abstract

The invention discloses a temperature control platform for sectionally controlling a temperature of a micro-fluidic chip. The temperature control platform comprises a temperature control platform body, an intelligent temperature regulator and a constant-temperature circulator, wherein the temperature control platform body consists of a housing, a cool plate, a hot plate, a semiconductor refrigerating sheet with a cool surface facing upwards, a heater, a heat radiator and a metal conduit from the external to the internal, and the cool plate and the hot plate are provided with a temperature measurer. By utilizing the high-performance micro semiconductor refrigerating sheet and the ceramic heating sheet, the size of the sectional-type micro-fluidic chip temperature control apparatus is greatly reduced, and for the characteristic of the small area of the micro-fluidic chip, the practicability of the temperature control platform is improved; by adopting the commercial temperature controller Tempco TEC-220, according to the temperature data of the hot plate and the cool plate collected by a platinum electrode, the high precision automatic temperature control is realized by precisely controlling the operation and stopping of the semiconductor refrigerating sheet and the ceramic heating sheet; and by adopting the HX-1050 constant-temperature circulator, the temperature of the circulating liquid is kept at 60 DEG C below zero to 50 DEG C, the heat radiation requirement of the apparatus can be met, the experiment energy consumption can be reduced, the application cost is decreased, and the temperature control platform is suitable for realizing experiments such as biological PCR, liquid drop and capsule solidification and melting, crystal phase changing, material synthesis by controlling temperature in the micro-fluidic chip.

Description

technical field [0001] The invention belongs to the technical field of thermoelectric application, in particular to a segmented microfluidic chip temperature control device. Background technique [0002] With the continuous development and maturity of microfluidic technology, more and more various biological and chemical experiments such as digital PCR, cell culture, material synthesis, drug screening, etc. will be realized in a small microfluidic chip. Usually these experiments need to be carried out at a certain temperature to react smoothly, and the temperature range is generally -40-100°C. [0003] At present, most of the above experiments in microfluidic chips are carried out by using high and low temperature chambers or temperature cycle test chambers for temperature control. These devices not only have low temperature control accuracy, but also have a small working temperature range, and their volume and The power consumption is very large. Contents of the inventio...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the above experiments in microfluidic chips are carried out by using high and low temperature chambers or temperature cycle test chambers for temperature control. These devices not only have low temperature control accuracy, but also have a small working temperature range, and their volume and Power consumption is high

Images