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Multilayer thick film heating element

A heating element and thick film technology, applied in heating element materials, electrical components, electric heating devices, etc., can solve the problems of temperature induction sensitivity of thick film temperature control circuit and thick film heating circuit, and achieve the purpose of overcoming inaccurate pressure induction, The effect of uniform temperature sensing and high precision

Active Publication Date: 2017-07-25
GUANGDONG FLEXWARM ADVANCED MATERIALS & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the above technology, the temperature control circuit is arranged in or in parallel with the thick film heating circuit, and it does not involve the study of temperature sensitivity from the area ratio of the thick film temperature control circuit to the thick film heating circuit.

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0032] A multi-layer temperature-sensitive thick-film heating element, including a four-layer structure, the four-layer structure is as follows from bottom to top: the first layer is a carrier substrate 1, and the second layer is a thick-film coating 2 coated on the carrier substrate , the third layer is the temperature sensing element layer 3 tiled on the thick film coating, and the fourth layer is the cover layer; the temperature sensing element layer 3 is provided with a temperature sensing element, and the temperature sensing element includes a temperature sensing thick film The resistor 32 and the temperature-sensing carrier 31 , the temperature-sensing thick-film resistor 32 is spread on the temperature-sensing carrier 31 , and the temperature-sensing carrier 31 is located on the thick-film coating 2 . The temperature-sensitive carrier 31 is located between the thick-film coating 2 and the sensing thick-film resistor 32 . The temperature-sensitive carrier is a polyimide ...

Embodiment 2

[0034] Replace the temperature-sensing element layer in Example 1 with a pressure-sensing layer, replace the temperature-sensing element with a pressure-sensing element, replace the temperature-sensing carrier with a pressure-sensing carrier, replace it with a ceramic diaphragm, and prepare a multilayer pressure-sensing thickness Film heating element.

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Abstract

The invention provides a multilayer thick film heating element. The multilayer thick film heating element comprises a four-layer structure, wherein the four-layer structure sequentially comprises a first carrier matrix layer, a second thick film coating layer coated on the first carrier matrix layer, a third inductor element layer laid on the thick film coating layer and a fourth coverage layer, wherein an area ratio of the second layer to the third layer is a ratio of the thick film coating layer to the inductor element layer and is 1:0.3-1. The multilayer thick film heating element is advantaged in that the inductor element layer is directly laid on the thick film coating layer, upper and lower structure composition is realized, direct induction can be realized, induction sensitivity is improved, a reasonable overlapping area proportion is selected, and sensitivity under the reasonable proportion can be higher.

Description

technical field [0001] The invention belongs to the field of heating, and in particular relates to a multilayer thick film heating element. Background technique [0002] CN1655652A discloses a manufacturing method of an electrothermal film PTC heating device, which belongs to the manufacturing method of an electric heating device, and is characterized in that it includes the following steps: selecting and adopting alumina or aluminum nitride as a raw material after tape-casting. The blank is used as the upper ceramic substrate and the lower ceramic substrate; then it is screen-printed with electrothermal film slurry, and the hot pressing temperature is usually 60-120°C, and the pressure is 50-300kg·cm -2 The process of hot pressing, debinding, sintering and connection at a temperature of 1500-1700°C; the electrothermal film slurry is made of 90%-99% tungsten powder or molybdenum-manganese mixed powder with 1%-10% glass powder material, and then mixed into the adhesive at a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B3/20H05B3/10
CPCH05B3/10H05B3/20H05B2203/01
Inventor 黄伟聪
Owner GUANGDONG FLEXWARM ADVANCED MATERIALS & TECH CO LTD
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