Heating device of nucleic acid extractor and nucleic acid extractor

Abstract

The invention provides a heating device of a nucleic acid extractor and the nucleic acid extractor, which can more effectively control the heating temperature. The heating device comprises a heating strip assembly, a heat insulation cover, a heat insulation pressing strip and a cooling fan. The heating strip assembly comprises a heating strip body and a heating head, and the heating head is located at the upper end of the heating strip body; the heat insulation cover is provided with an upper end opening and a lower end opening, and the heat insulation cover is sleeved on the heating strip assembly and extends out of the upper end opening from the heating head; the heat insulation pressing strip seals an opening in the lower end of the heat insulation cover, so that a fully-enclosed space is formed among the heat insulation pressing strip, the heat insulation cover and the heating head, and the heating strip body is enclosed in the fully-enclosed space; heat dissipation holes are formed in the heat insulation cover and/or the heat insulation pressing strip, and the heat dissipation fan is arranged towards at least one heat dissipation hole.

Description

technical field [0001] The invention relates to the technical field of nucleic acid extraction, in particular to a heating device of a nucleic acid extraction instrument and a nucleic acid extraction instrument. Background technique [0002] Nucleic acid extraction technology is an important method to achieve precision medicine in the fields of biology and medicine. In the nucleic acid extraction experiment, some reagents need to be heated to an appropriate reaction temperature. The heating device of the nucleic acid extraction instrument is used to heat the reagent to an appropriate temperature to ensure the accuracy of the nucleic acid extraction experiment. When the volume of the reagent to be heated is large or the reaction temperature is high, an efficient heating device is a powerful guarantee to ensure the rapid and smooth progress of the experiment. [0003] In the heating devices of nucleic acid extractors currently on the market, the heat insulation of the heating...

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Problems solved by technology

[0004] When the above-mentioned heating device is heating, the lower half of the heating strip assembly will dissipate heat at the same time, which can achieve better heating when the amount of reagents in the reaction well is small and the temperature demand is not high. However, in the reaction well When the amount of well reagent is relatively large or the temperature requirement is high, the above-mentioned heating device is difficult to control the heating temperature because of the high heating input accompanied by high heat dissipation, and cannot guarantee a good heating effect

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