CN200996873Y - Output-controllable thermal-coupling circuit - Google Patents
Output-controllable thermal-coupling circuit Download PDFInfo
- Publication number
- CN200996873Y CN200996873Y CN 200620016382 CN200620016382U CN200996873Y CN 200996873 Y CN200996873 Y CN 200996873Y CN 200620016382 CN200620016382 CN 200620016382 CN 200620016382 U CN200620016382 U CN 200620016382U CN 200996873 Y CN200996873 Y CN 200996873Y
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- thermopair
- triode
- circuit
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- resistance
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Abstract
A thermocouple circuit with controllable output is provided, which comprises a thermocouple and a thermocouple load, wherein, a switching unit designed to control connection/disconnection between the thermocouple and the thermocouple load is serially connected between the thermocouple and the thermocouple load.
Description
Technical field
The utility model relates to thermocouple circuit, is specifically related to export controlled thermocouple circuit.
Background technology
Thermopair is a thermoelectric conversion element commonly used, because it can be an electric energy with thermal power transfer after being heated, produces electric current, so it is on-the-spot to be widely used in the monitoring of heat temperature.In thermoelectric transfer process, the electric current of generation has fixing polarity.A complete loop, when thermopair was heated, the electric current of generation always from its anodal outflow, flowed into from its negative pole.Current, the use of thermopair mostly is mechanical type or half mechanical type.Promptly in the loop, after thermopair is heated, produce the current drives peripheral components, peripheral components is that control is accepted in passive going.
The utility model content
The technical problems to be solved in the utility model is that the defective of uncontrollable thermopair output provides a kind of controlled thermocouple circuit of exporting when using at the above-mentioned thermocouple circuit of prior art.
The technical scheme that its technical matters that solves the utility model adopts is: construct a kind of controlled thermocouple circuit of exporting, comprise thermopair and thermopair load, it is characterized in that, be connected with the switch element that is used to control connecting and disconnecting of the circuit between described thermopair and the described thermopair load between described thermopair and the described thermopair load.
In the controlled thermocouple circuit of output described in the utility model, the anode of described switch element and described thermopair links to each other.
In the controlled thermocouple circuit of output described in the utility model, the negative terminal of described switch element and described thermopair links to each other.
In the controlled thermocouple circuit of output described in the utility model, described switch element is a relay.
In the controlled thermocouple circuit of output described in the utility model, the driving circuit that also comprises described relay J 1, described driving circuit comprises NPN type triode Q1, diode D1, resistance R 1, resistance R 2, described relay J 1 coil one end connects power supply, the other end links to each other with the collector of triode Q1, the grounded emitter of triode Q1, the base stage of triode Q1 is by resistance R 1 ground connection, the base stage of triode Q1 links to each other with control end by resistance R 2, and diode D1 positive pole links to each other with the collector of triode Q1, and diode D1 negative pole links to each other with power supply.
The beneficial effects of the utility model are, can be according to peripheral circuit requirement, and under the control of peripheral circuit, realize the output of thermopair or do not export.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the circuit diagram of a kind of embodiment of the controlled thermocouple circuit of the utility model output;
Fig. 2 is the circuit diagram of the another kind of embodiment of the controlled thermocouple circuit of the utility model output.
Embodiment
Be illustrated in figure 1 as the circuit diagram of a kind of embodiment of the controlled thermocouple circuit of the utility model output.In Fig. 1, switch element is a relay J 1, the driving circuit that also comprises described relay J 1, described driving circuit comprises NPN type triode Q1, diode D1, resistance R 1, resistance R 2, described relay J 1 coil one end connects power supply, the other end links to each other with the collector of triode Q1, the grounded emitter of triode Q1, the base stage of triode Q1 are by resistance R 1 ground connection, and the base stage of triode Q1 links to each other with control end by resistance R 2, diode D1 positive pole links to each other with the collector of triode Q1, and diode D1 negative pole links to each other with power supply.When control end A is high level, the triode conducting, relay coil has electric current to pass through, and makes relay J 1 conducting; When control end A is low level, triode by, the relay coil no current passes through, and relay J 1 is turn-offed.
Because thermopair is less owing to internal resistance, therefore, as long as circuit relay electrical equipment J1 is disconnected, whole loop also just disconnects, and at this moment, the electric current at thermopair two ends will discharge rapidly, the voltage of output terminal will get back to zero, and output current also is zero, so just play the control action to thermopair output.
This circuit has certain requirement to relay J 1, because will guarantee not influence the output of thermopair after this circuit inserts, so that the pressure drop that requires on this circuit to be born will be tried one's best is little.Because the characteristic (internal resistance is very little) of thermopair, therefore, the access resistance that we introduce is also very little, because of the be heated voltage that produced of single thermopair is lower, does not reach the forward voltage of semiconductor devices again at all.So, must must select for use relay J 1 to control, and require enough little of the contact point resistance of relay J 1, generally require in 50 milliohms, certainly, this resistance is the smaller the better.
Be illustrated in figure 2 as the circuit diagram of the another kind of embodiment of the controlled thermocouple circuit of the utility model output.With unique difference of comparing shown in Figure 1 is the anode that switch element is positioned at thermopair.
Claims (5)
1, a kind ofly exports controlled thermocouple circuit, comprise thermopair and thermopair load, it is characterized in that, be connected with the switch element that is used to control connecting and disconnecting of the circuit between described thermopair and the described thermopair load between described thermopair and the described thermopair load.
2, the controlled thermocouple circuit of output according to claim 1 is characterized in that, the anode of described switch element and described thermopair links to each other.
3, the controlled thermocouple circuit of output according to claim 1 is characterized in that, the negative terminal of described switch element and described thermopair links to each other.
According to the controlled thermocouple circuit of any one described output among the claim 1-3, it is characterized in that 4, described switch element is a relay J 1.
5, the thermocouple circuit that output according to claim 4 is controlled, it is characterized in that, the driving circuit that also comprises described relay J 1, described driving circuit comprises NPN type triode Q1, diode D1, resistance R 1, resistance R 2, described relay J 1 coil one end connects power supply, the other end links to each other with the collector of triode Q1, the grounded emitter of triode Q1, the base stage of triode Q1 are by resistance R 1 ground connection, and the base stage of triode Q1 links to each other with control end by resistance R 2, diode D1 positive pole links to each other with the collector of triode Q1, and diode D1 negative pole links to each other with power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620016382 CN200996873Y (en) | 2006-12-08 | 2006-12-08 | Output-controllable thermal-coupling circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620016382 CN200996873Y (en) | 2006-12-08 | 2006-12-08 | Output-controllable thermal-coupling circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200996873Y true CN200996873Y (en) | 2007-12-26 |
Family
ID=38995307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620016382 Expired - Lifetime CN200996873Y (en) | 2006-12-08 | 2006-12-08 | Output-controllable thermal-coupling circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200996873Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102916056A (en) * | 2012-09-25 | 2013-02-06 | 谢可勋 | Solar battery pack protection circuit, solar junction box and solar power generation system |
| CN104486897A (en) * | 2014-11-19 | 2015-04-01 | 宋宏伟 | Voltage regulation control device for inductive ballast |
| CN108507693A (en) * | 2017-02-24 | 2018-09-07 | 波音公司 | Two-wire system resistance temperature detector and its application method |
| CN112903043A (en) * | 2019-12-03 | 2021-06-04 | 成都秦川物联网科技股份有限公司 | Multichannel ultrasonic flowmeter system |
-
2006
- 2006-12-08 CN CN 200620016382 patent/CN200996873Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102916056A (en) * | 2012-09-25 | 2013-02-06 | 谢可勋 | Solar battery pack protection circuit, solar junction box and solar power generation system |
| CN102916056B (en) * | 2012-09-25 | 2015-09-23 | 谢可勋 | Solar module protective circuit, solar junction box and solar power system |
| CN104486897A (en) * | 2014-11-19 | 2015-04-01 | 宋宏伟 | Voltage regulation control device for inductive ballast |
| CN108507693A (en) * | 2017-02-24 | 2018-09-07 | 波音公司 | Two-wire system resistance temperature detector and its application method |
| CN112903043A (en) * | 2019-12-03 | 2021-06-04 | 成都秦川物联网科技股份有限公司 | Multichannel ultrasonic flowmeter system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHENZHEN AND INTELLIGENT CONTROL AND THAILAND CO. Free format text: FORMER NAME OR ADDRESS: HEERTAI ELECTRONIC SCI-TECH CO., LTD. SHENZHEN |
|
| CP03 | Change of name, title or address |
Address after: D building, Institute of international technology innovation, South ten road, hi tech Zone, Guangdong, Shenzhen Province, building 10, postcode: 518000 Patentee after: ShenZhen H&T Intelligent Control CO., LTD. Address before: D building, Institute of international technology innovation, South ten road, hi tech Zone, Guangdong, Shenzhen Province, building 10, postcode: 518000 Patentee before: Heertai Electronic Sci. & Tech. Co., Ltd., Shenzhen City |
|
| CX01 | Expiry of patent term |
Granted publication date: 20071226 |
|
| EXPY | Termination of patent right or utility model |