Contact temperature measuring sensor, preparation method thereof, and cooking equipment

A technology of temperature measurement sensor and cooking equipment, which is applied to thermometers, instruments, thermometers, etc. that use electric/magnetic elements that are directly sensitive to heat, and can solve problems such as difficult precise temperature control, cumbersome process, and difficult intelligent cooking.

Pending Publication Date: 2019-08-16
MIDEA GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the temperature measuring sensors in cooking equipment cannot accurately monitor the temperature of the heated object on the one hand, and it is difficult to achieve precise temperature control. They can only control the heating program in a fuzzy temperature control manner. It is difficult to realize truly intelligent cooking. On the other hand, the preparation cost is high, the process conditions are harsh, the process is cumbersome, the production efficiency is low, and the reliability is poor
[0003] Therefore, the relevant technology of the existing temperature sensor still needs to be improved.

Method used

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  • Contact temperature measuring sensor, preparation method thereof, and cooking equipment
  • Contact temperature measuring sensor, preparation method thereof, and cooking equipment
  • Contact temperature measuring sensor, preparation method thereof, and cooking equipment

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preparation example Construction

[0045] In one aspect of the present invention, the present invention provides a method for preparing a contact temperature sensor. According to an embodiment of the present invention, refer to figure 1 with Figure 2a to Figure 2c , The method includes the following steps:

[0046] S100: Using a thermal spraying method to spray the first thermoelectric material on the first surface of the substrate 100 to form the first electrode 200, see Figure 2a (in Figure 2a The middle left is a schematic diagram of the cross-sectional structure Figure 2a The middle right is a schematic diagram of the plane structure);

[0047] According to the embodiment of the present invention, the specific material type of the first thermoelectric material is not particularly limited. As long as the requirements are met, those skilled in the art can make flexible selections according to their needs. For example, they may include but not limited to platinum rhodium alloys and nickel-chromium alloys. , Iro...

Embodiment 1

[0130] Method for preparing contact temperature sensor

[0131] 1. The clean surface of the ceramic (100*200*1mm) is immersed in 10% hydrochloric acid and ultrasonic for 10 minutes, and then immersed in ethanol solvent for 20 minutes;

[0132] 2. Cover the first mask with the first electrode pattern hollowed out on the ceramic;

[0133] 3. Remove the oxidized part of the surface of the first wire (the composition is iron, the diameter is 1.2mm);

[0134] 4. The carrier gas is N 2 Under the conditions of, use arc spray equipment to spray the first wire on the ceramic covering the first mask. The spraying voltage is 40V, the current is 100A, the spraying distance is 400mm, the spraying air pressure is 0.4MPa, and the spray gun moving speed is 100mm / S, forming the first electrode of the contact temperature sensor, with an average thickness of 15μm and a resistance of 350Ω;

[0135] 5. Cover the second mask with the hollowed-out second electrode pattern on the ceramic, the hollowed-out pat...

Embodiment 2

[0140] Method for preparing contact temperature sensor

[0141] 1. The stainless steel alloy (200*200*1mm) is sandblasted with 80 mesh brown corundum, and then the surface is insulated;

[0142] 2. Cover the first mask plate with the first electrode pattern hollowed out on the stainless steel alloy whose surface has been insulated;

[0143] 3. Remove the first wire (the composition is Ni 90 Cr 10 , The diameter is 2.0mm) the oxidation part of the surface;

[0144] 4. The carrier gas is N 2 Under the conditions of, use the arc spray equipment to spray the first wire on the ceramic covering the first mask. The spraying voltage is 20V, the current is 100A, the spraying distance is 300mm, the spraying air pressure is 0.6MPa, and the spray gun moving speed is 100mm / S, forming the first electrode of the contact temperature sensor, with an average thickness of 35μm and a resistance of 150Ω;

[0145] 5. Cover the second mask plate with the hollowed-out second electrode pattern on the stainless...

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Abstract

The invention provides a contact temperature measuring sensor, a preparation method thereof, and cooking equipment. The preparation method of the contact temperature measuring sensor comprises the steps that a thermal spraying method is adopted to spray a first thermoelectric material on the first surface of a substrate, so that a first electrode is formed; and the thermal spraying method is adopted to spray a second thermoelectric material on the first surface, so that a second electrode is formed, wherein one or more contact areas are arranged between the second electrode and the first electrode, and the ingredients of the first thermoelectric material and the second thermoelectric material are different. The preparation method of the contact temperature measuring sensor is easy and convenient to operate and easy to realize, the requirements for control precision of technological parameters are low, feasibility is high, reliability is good, the cost is low, the production efficiencyis high, and actual industrial production is easy.

Description

Technical field [0001] The invention relates to the technical field of temperature measurement, in particular to a contact temperature measurement sensor, a preparation method thereof, and cooking equipment. Background technique [0002] The current temperature measurement sensors in cooking equipment cannot accurately monitor the temperature of the heated object on the one hand, and it is more difficult to achieve precise temperature control. The heating process can only be controlled by fuzzy temperature control. It is difficult to achieve true intelligent cooking. It causes the danger of overburning. On the other hand, the preparation cost is high, the process conditions are strict, the process is cumbersome, the production efficiency is low, and the reliability is poor. [0003] Therefore, the related technology of the existing temperature sensor still needs to be improved. Summary of the invention [0004] The present invention was completed based on the inventor's following f...

Claims

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Application Information

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IPC IPC(8): C23C4/01C23C4/129C23C4/131C23C4/134C23C4/06C23C4/08G01K7/02A47J36/00G01K1/14
CPCC23C4/01C23C4/129C23C4/131C23C4/134C23C4/06C23C4/08G01K7/02A47J36/00
Inventor 王慷慨成乐熊玉明
Owner MIDEA GRP CO LTD
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