A temperature conduction system for nucleic acid amplification instrument

Abstract

The invention provides a temperature conduction system for a nucleic acid amplifier. The temperature conduction system comprises a fan module, a temperature detection module, a control module and a fan module chip support, a chip groove is formed in the chip support, a chip is installed in the chip groove, a heating cover covers the chip support, and a first refrigeration sheet, a second refrigeration sheet, a cooling fin and a fan are sequentially arranged below the chip. The control module is connected with the temperature detection module and the fan module and used for receiving the temperature information sent by the temperature detection module and controlling temperature rising and falling of the heating cover, the first refrigeration sheet, the second refrigeration sheet and the cooling fin and the rotating speed of the fan. The invention provides the temperature conduction system, according to the invention, the temperature change of each device can be detected in real time, which device needs to be subjected to temperature adjustment is analyzed in a layer-by-layer judgment manner, all devices do not need to be adjusted, the adjustment control difficulty can be greatly reduced, and the chip temperature can be accurately controlled, so that the temperature control precision and the temperature control efficiency can be improved.

Description

technical field [0001] The invention relates to the field of PCR temperature control, in particular to a temperature conduction system for a nucleic acid amplification instrument. Background technique [0002] Nucleic acid amplification technology, especially digital polymerase chain reaction technology (Polymerase Chain Reaction referred to as PCR), is a molecular biological technology used to amplify specific DNA molecular fragments. It uses DNA molecules as templates and is artificially synthesized by a pair of The specific oligonucleotide primers can quickly amplify specific DNA molecular fragments through the enzymatic reaction of DNA polymerase, which plays an extremely important role in biology. The basic process of PCR reaction is divided into three steps. The first step is DNA denaturation (94°C), and the hydrogen bond of the double-stranded DNA template is broken under the action of heat to form single-stranded DNA; the second step is annealing (55°C), the tempera...

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Problems solved by technology

[0004] In order to solve the problems of low temperature control efficiency and insufficient temperature control accuracy of the existing PCR instrument control system, the present invention provides a brand new temperature conduction system, which can realize rapid and high-precision temperature control

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