Thick film heating element with high double-sided heat conduction capability

Abstract

The invention provides a thick film heating element with high double-sided heat conduction capability. The thick film heating element is characterized by comprising a carrier, a thick film coating which coats the carrier, and a covering layer covering the thick film coating, wherein the thick film coating is a heating material; the heating mode is electric heating; and material selection of the covering layer, the thick film coating and the carrier meets the inequations as follows: Q2 is greater than or equal to Q3, Q2 is greater than or equal to Q1, Q1 is equal to a*Q3, Q2 is equal to b*Q1 and Q2 is equal to c*Q3 in a heat transfer process, wherein a is smaller than or equal to 150 and greater than or equal to 0.1, b is smaller than or equal to 2500 and greater than or equal to 1, and c is smaller than or equal to 10,000 and greater than or equal to 100. The thick film heating element has high double-sided heat conduction capability, double-sided heating is relatively uniform and the heat transfer efficiency is improved. The thick film heating element provided by the invention can be applied to a product requiring the high double-sided heat conduction capability, and meets the requirements of a multifunctional heating product in the market.

Description

technical field [0001] The invention relates to the field of thick film heating, in particular to a double-sided thick film heating element with high thermal conductivity. Background technique [0002] Thick film heating element refers to a heating element that makes a thick film of heating material on the substrate and conducts electricity to generate heat. Traditional heating methods include electric heating tube heating and PTC heating. The electric heating tube heating element is a metal tube as a jacket, and nickel-chromium or iron-chromium alloy is spirally distributed in the metal tube as a heating wire, and the gap space is filled with good thermal conductivity and The magnesia sand with insulating properties is sealed with silica gel at both ends; the PTC heating element uses PTC ceramics as the heating material. The current electric heating tube heating and PTC heating methods are indirect heating, showing low thermal efficiency, and the appearance is large and bu...

AI Technical Summary

Problems solved by technology

[0005] Although heating elements have been gradually applied to the field of household electrical appliances, the main body of the above-mentioned thick-film heating is attached to the electrical appliances, and there are few independent elements; there is no thick-film heating element with high thermal conductivity on both sides at present. And the double-sided heating thick film element is applied to the field of life and production to realize the function of uniform heating on both sides

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