CN2043386U - Temp. controller of electric heater - Google Patents
Temp. controller of electric heater Download PDFInfo
- Publication number
- CN2043386U CN2043386U CN 88206418 CN88206418U CN2043386U CN 2043386 U CN2043386 U CN 2043386U CN 88206418 CN88206418 CN 88206418 CN 88206418 U CN88206418 U CN 88206418U CN 2043386 U CN2043386 U CN 2043386U
- Authority
- CN
- China
- Prior art keywords
- temperature
- electric heater
- circuit
- utility
- power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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- Control Of Temperature (AREA)
Abstract
The utility model belongs to the electronic temperature control field, which is provided with circuits of temperature regulation, automatic keeping temperature, overcurrent protection, etc. The utility model is suitable for electric heater, the range of regulating temperature is from 30 celsius degrees to 60 celsius degrees, and the error is plus or minus 2 celsius degrees. When the power is switched on, the temperature of the electric heater rises, and the temperature is changed into electrical signal to be delivered to the circuit by a sensor. If the temperature reaches to the prescribed value, the power is automatically cut in the circuit control part. Then the electric heater enters the temperature state, and when the temperature is below the prescribed value after a while, the circuit can be connected automatically. If the electric heater has fault and overcurrent, the overcurrent protection circuit of the electric heater can cut the power automatically. The utility model has the advantages of simple structure, safe operation, few electric energy consumption, low cost, andm small high frequency noise.
Description
The invention belongs to electron temperature control field.
Existing heater temperature is regulated major part and all is divided into high to low gear, high gear temperature height.The low gear temperature is low, and electric heater is to be in "on" position always.This pattern not only power consumption is big, poor stability, and temperature regulating range is also little, and the continuously adjustable controller of temperature, price height often, complex circuit.
Task of the present invention is that to work out a kind of circuit simple, and reliable operation, temperature are adjustable continuously, saves the controller of electric energy.
The present invention is by rectification, adjustment, and circuit such as automatic constant-temperature and overcurrent protection are formed, and it is applicable to general electric heating appliance, and temperature regulating range is 30 ℃～60 ℃ Celsius, error ± 2 ℃, the high frequency electrical noise is also very little.
Below in conjunction with accompanying drawing the present invention is explained.
Exchange 220 volts of voltages, through capacitor C
1Step-down, diode D
1Half-wave rectification after the stabilivolt Dw voltage stabilizing, provides 6 volts of DC voltage to control circuit, LED, luminous indication power connection.
Regulator potentiometer Rw can regulate the electric heater thermostat temperature continuously, and when electric heater did not also reach steady temperature, the transistor T conducting provided certain trigger current, made bidirectional triode thyristor BCR conducting, electric heater R
LEnergising, temperature constantly raises, sensor Rt, resistance changes, as electric heater R
LWhen reaching regulation constant temperature value, transistor T ends, and bidirectional triode thyristor BCR disconnects, electric heater R
LOutage reaches temperature constant state, if through after a while, temperature descends, and sensor Rt makes the transistor T conducting again, and bidirectional triode thyristor is conducting again, and electric heater is switched on again.
If fuse R overcurrent situations appears, then in controller or electric heater
DVery fast fusing is cut off the electricity supply.
One of attached wiring diagram.
Claims (6)
1, this controller comprises rectification circuit, temperature regulation circuit, automatic thermostat circuit and circuit overcurrent protection, and feature of the present invention is that the control utmost point of bidirectional triode thyristor [BCR] links to each other transistor [T] collector and resistance [R with transistor [T] emitter
2] join, transistor [T] base stage and sensor [Rt] join.
2, temperature regulation circuit as claimed in claim 1 is characterized in that at sensor ［ Rt ］ end serial connection adjustment potentiometer Rw.
3, as described in the claim 2, adjustment potentiometer Rw, other end series resistor ［ R
3.
4, rectification circuit as claimed in claim 1 is characterized in that decompression capacitor ［ C
1And commutation diode ［ D
1Be in series.
5, rectification circuit as claimed in claim 1 is characterized in that bleeder resistance ［ R
1And decompression capacitor ［ C
1Be in parallel.
6, controller constant-temperature circuit according to claim 1 is characterized in that electric heater R
L［ BCR ］ is in series with bidirectional triode thyristor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88206418 CN2043386U (en) | 1988-05-31 | 1988-05-31 | Temp. controller of electric heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88206418 CN2043386U (en) | 1988-05-31 | 1988-05-31 | Temp. controller of electric heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2043386U true CN2043386U (en) | 1989-08-23 |
Family
ID=4840609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88206418 Withdrawn CN2043386U (en) | 1988-05-31 | 1988-05-31 | Temp. controller of electric heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2043386U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102662266A (en) * | 2012-05-22 | 2012-09-12 | 航天科技控股集团股份有限公司 | Liquid crystal screen heating controller and heating method |
-
1988
- 1988-05-31 CN CN 88206418 patent/CN2043386U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102662266A (en) * | 2012-05-22 | 2012-09-12 | 航天科技控股集团股份有限公司 | Liquid crystal screen heating controller and heating method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |