CN209572175U - A kind of temperature self adjusting positive temperature coefficient resistance panel heater - Google Patents
A kind of temperature self adjusting positive temperature coefficient resistance panel heater Download PDFInfo
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- CN209572175U CN209572175U CN201821965258.5U CN201821965258U CN209572175U CN 209572175 U CN209572175 U CN 209572175U CN 201821965258 U CN201821965258 U CN 201821965258U CN 209572175 U CN209572175 U CN 209572175U
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- heating
- film
- heating film
- plate
- temperature coefficient
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Abstract
The utility model discloses a kind of temperature self adjusting positive temperature coefficient resistance panel heaters, including heating film and heating plate, the heating film is that unit made of several positive temperature coefficient materials of array together heats film composition, the heating film is bonded on heating plate by magnetron sputtering mode, the mode that the heating film is arranged on heating plate first passes through conducting wire for unit heating film and is connected into several rows heating films according to the uniform in size of plate, it is arranged on the electrode of heating board ends by parallel way connection again between the every row heating film being cascaded, power supply for loading constant voltage is set between two electrodes on heating thin film circuit.The heater prepared by the utility model can realize automatic adjustment temperature, homogeneous heating.
Description
Technical field
The utility model relates to a kind of panel heaters, and in particular to a kind of temperature self adjusting positive temperature coefficient resistance
Panel heater.
Background technique
The heating method of existing panel heater is to arrange resistive heater in flat plate bottom, on being passed through resistive heater
Loading current makes plate temperature rise to required temperature to generate Joule heat.Due under plate resistance wire be unevenly distributed with
And the difference of plate and air heat exchange, the temperature on plate cannot reach higher uniformity.
Utility model content
The present invention is led in view of the above-mentioned problems, provide a kind of temperature self adjusting positive temperature coefficient resistance panel heater
It crosses using film is heated made of positive temperature coefficient material, improves the temperature uniformity of heater.
To achieve the above object, the present invention uses following technical scheme.
A kind of temperature self adjusting positive temperature coefficient resistance panel heater, which is characterized in that including heating film and
Plate is heated, the heating film is that unit made of several positive temperature coefficient materials of array together heats film structure
At the heating film is bonded on heating plate by magnetron sputtering mode, and the heating film setting is on heating plate
Mode be that unit heats film and first passes through conducting wire and is connected into several rows according to the uniform in size of plate and heats films, be connected on one
The electrode of heating board ends is set by parallel way connection again between the every row heating film risen, on heating thin film circuit
Two electrodes between power supply for loading constant voltage is set.
Further, the heating film is platinum metal film.
Further, the shape for heating film is circuitous configuration.
When its working method is heater heating, heating film resistor makes plate heat up for Joule heat is generated, when on plate
When non-uniform temperature, since heating film is positive temperature coefficient material, the higher region film resistor of temperature increases, and electric
Constant, heating power reduction is pressed, thus decline the temperature in the temperature drift region, realization self-regulation；Similarly, when certain region
When temperature is relatively low, heating sheet resistance reduces, and heating power increases, so that the regional temperature for keeping temperature relatively low rises, finally
Improve the temperature uniformity on plate.The heater is prepared using MEMS technology.
The utility model has the beneficial effects that the heater prepared by the utility model can realize automatic adjustment temperature,
Homogeneous heating.
Detailed description of the invention
Fig. 1 is the temperature self adjusting positive temperature coefficient resistance panel heater structural schematic diagram of the utility model；
Fig. 2 is the temperature self adjusting positive temperature coefficient resistance panel heater electric current input signal of the utility model
Figure；
Fig. 3 is the MEMS preparation work of the temperature self adjusting positive temperature coefficient resistance panel heater of the utility model
Skill.
In figure: 1. conducting wires, 2. heating plates, 3, unit heating film, 4, electrode, 5, constant voltage power supply;
Heating plate,Heating film,Photoresist.
Specific embodiment
Below in conjunction with drawings and examples, the invention will be further described.Referring to Fig. 1,2, a kind of temperature self adjusting positive electricity
Hinder temperature coefficient of resistance panel heater, including heating film and heating plate 2, if the heating film be array together
Unit made of dry positive temperature coefficient material heats film 3 and constitutes, and the heating film is bonded by magnetron sputtering mode
On heating plate, the mode that the heating film is arranged on heating plate is that unit heating film 3 first passes through 1 basis of conducting wire
The uniform in size of plate is connected into several row heating films, passes through parallel way again between the every row heating film being cascaded
Connection is arranged on the electrode 4 of heating board ends, is arranged between two electrodes 4 on heating thin film circuit for loading constant voltage
Power supply 5.
The technical solution is loaded as constant voltage on heating film referring to fig. 2.Its working method is that heater adds
When hot, heating film green coke has burning ears and plate is made to heat up, when heating non-uniform temperature on plate, due to heating Thin film resistive temperature
Coefficient material, the higher region film resistor of temperature increases, and voltage is constant, and heating power reduces, to keep the temperature inclined
The temperature in high region declines, and realizes self-regulation；Similarly, when certain regional temperature is relatively low, heating sheet resistance reduces, and heats function
Rate increases, so that the regional temperature for keeping temperature relatively low rises, finally improves the temperature uniformity on plate.
The heater is prepared using MEMS technology.Technical process is referring to Fig. 3, processing step (1), using acetone,
Alcohol, deionized water clean heating plate；Processing step (2), sputtering 500nm heats film-platinum on heating plate
Metallic film, platinum have positive temperature coefficient；Processing step (3), in 5 μm of positive photoresists of platinum film surface spin coating；Technique
Step (4), photoetching, development obtain the exposure mask of heater figure；Processing step (5) is added by argon plasma etch
Hot film pattern；Processing step (6), sample is put into acetone and is impregnated, and is removed photoresist, is obtained final heater.
Claims (3)
1. a kind of temperature self adjusting positive temperature coefficient resistance panel heater, which is characterized in that including heating film and add
Flat plate heat, the heating film are that unit made of several positive temperature coefficient materials of array together heats film structure
At the heating film is bonded on heating plate by magnetron sputtering mode, and the heating film setting is on heating plate
Mode be that unit heats film and first passes through conducting wire and is connected into several rows according to the uniform in size of plate and heats films, be connected on one
It is arranged on the electrode of heating board ends by parallel way connection again between the every row heating film risen, in heating thin film circuit
On two electrodes between power supply for loading constant voltage is set.
2. a kind of temperature self adjusting positive temperature coefficient resistance panel heater according to claim 1, feature exist
In the heating film is platinum metal film.
3. a kind of temperature self adjusting positive temperature coefficient resistance panel heater according to claim 1, feature exist
In the shape for heating film is circuitous configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821965258.5U CN209572175U (en) | 2018-11-27 | 2018-11-27 | A kind of temperature self adjusting positive temperature coefficient resistance panel heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821965258.5U CN209572175U (en) | 2018-11-27 | 2018-11-27 | A kind of temperature self adjusting positive temperature coefficient resistance panel heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209572175U true CN209572175U (en) | 2019-11-01 |
Family
ID=68321194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821965258.5U Active CN209572175U (en) | 2018-11-27 | 2018-11-27 | A kind of temperature self adjusting positive temperature coefficient resistance panel heater |
Country Status (1)
| Country | Link |
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| CN (1) | CN209572175U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111183823A (en) * | 2020-02-28 | 2020-05-22 | 南京慧瞳作物表型组学研究院有限公司 | Cultivation device of soil temperature is adjusted to contact |
-
2018
- 2018-11-27 CN CN201821965258.5U patent/CN209572175U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111183823A (en) * | 2020-02-28 | 2020-05-22 | 南京慧瞳作物表型组学研究院有限公司 | Cultivation device of soil temperature is adjusted to contact |
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