CN205690517U - A kind of electric heater control circuit - Google Patents
A kind of electric heater control circuit Download PDFInfo
- Publication number
- CN205690517U CN205690517U CN201620500363.6U CN201620500363U CN205690517U CN 205690517 U CN205690517 U CN 205690517U CN 201620500363 U CN201620500363 U CN 201620500363U CN 205690517 U CN205690517 U CN 205690517U
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- China
- Prior art keywords
- resistance
- voltage
- electric heater
- detecting circuit
- diode
- Prior art date
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- 230000002457 bidirectional effect Effects 0.000 claims abstract description 17
- 239000003990 capacitor Substances 0.000 claims abstract description 6
- 230000006837 decompression Effects 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000001914 filtration Methods 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 238000007689 inspection Methods 0.000 abstract description 3
- 230000000630 rising effect Effects 0.000 abstract description 3
- 230000000087 stabilizing effect Effects 0.000 abstract description 3
- 230000001960 triggered effect Effects 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Control Of Resistance Heating (AREA)
Abstract
The open a kind of electric heater control circuit of this utility model, alternating current 220V voltage is after the first resistance and the first capacitance decompression, carried out voltage multiplying rectifier by the first commutation diode and the second commutation diode, after the second capacitor filtering and Zener diode voltage stabilizing, export direct current negative pressure.Power-supplying circuit output DC voltage is divided into two-way: a road is as the input direct voltage of voltage detecting circuit；Another road, after critesistor, the 3rd resistance and potentiometer dividing potential drop, provides detection voltage for voltage detecting circuit.When the temperature of the surroundings is low, the resistance value of critesistor is relatively big, and the test side dividing potential drop of voltage detecting circuit is higher, and voltage detecting circuit turns on, and light emitting diode is lighted, and bidirectional thyristor is triggered and turns on, and electric heater energising starts to warm up.After temperature rises to uniform temperature, the resistance value of critesistor reduces with the rising of temperature, makes the inspection terminal voltage of integrated circuit reduce, and light emitting diode extinguishes, bidirectional thyristor turns off, and electric heater power-off stops heating.
Description
Technical field
This utility model relates to control circuit field, particularly to a kind of electric heater control circuit.
Background technology
The low-temperature primary in winter is bettered a record, and people are more and more vigorous to the demand of electric heater, and this is to a great extent
On facilitate the life of people, increase warm for cold winter, but the use of electric heater safety the most increasingly cause people
Attention, the work of electric heater is mainly realized by control circuit, and therefore the design on control circuit of electric heater is particularly important.
Utility model content
This utility model is for solving above-mentioned technical problem, it is proposed that a kind of electric heater control circuit, by design steam type
Automatic power-off switch, temperature controller and thermal cut-off, realize the security control of insulating pot.
The technical solution adopted in the utility model is: a kind of electric heater control circuit, including: the first electric capacity, the first resistance,
First commutation diode, commutation diode, filter capacitor, Zener diode, thermal resistor, potentiometer, light emitting diode,
Voltage detecting circuit, bidirectional thyristor, electric heater；
First end of described first electric capacity and the first end of the first resistance are connected, second end and first of described first electric capacity
Second end of resistance is connected；Described first electric capacity the second end and the second commutation diode negative pole are connected, described second rectification two pole
Pipe positive pole and the second electric capacity negative pole are connected, and the second capacitance cathode is connected with Zener diode negative pole, described Zener diode positive pole
Being connected with the second commutation diode positive pole, described Zener diode positive pole is also connected with critesistor the first end, described temperature-sensitive electricity
Hindering the second end to be connected with potentiometer the first end, described potentiometer the first end is also connected with voltage detecting circuit the first end, described electricity
Position device the second end is connected with Zener diode negative pole, and described potentiometer the second end and the second capacitance cathode are connected, described potentiometer
Second end and the first commutation diode negative pole are connected, and described first commutation diode positive pole is connected with diode cathode the most in turn；
Described voltage detecting circuit the second end is connected with light emitting diode negative pole, described voltage detecting circuit the 3rd end and critesistor the
One end is connected；Described light emitting diode positive pole is connected with bidirectional thyristor the first end, and described bidirectional thyristor the second end adds with electricity
Hot device the first end is connected, and described electric heater the second end and first electric capacity the first end are connected.
Further, also include that the second resistance, described second resistance the first end are connected with light emitting diode positive pole, described
Two resistance the second ends are connected with bidirectional thyristor the first end.
Further, also include that the 3rd resistance, described 3rd resistance the first end are connected with potentiometer the first end, the described 3rd
Resistance the second end is connected with critesistor the second end, and described 3rd resistance the second end is also connected with voltage detecting circuit the first end.
The beneficial effects of the utility model: a kind of electric heater control circuit of the present utility model, alternating current 220V voltage is through the
After one resistance and the first capacitance decompression, the first commutation diode and the second commutation diode carry out voltage multiplying rectifier, by alternating current
Buckling becomes DC voltage, exports direct current negative pressure after the second capacitor filtering and Zener diode voltage stabilizing.Power-supplying circuit exports
DC voltage is divided into two-way: a road is as the input direct voltage of voltage detecting circuit；Another road is through critesistor, the 3rd resistance
After potentiometer dividing potential drop, provide detection voltage for voltage detecting circuit.When the temperature of the surroundings is low, the resistance value of critesistor is relatively
Greatly, the test side dividing potential drop of voltage detecting circuit is higher, makes voltage detecting circuit turn on, and light emitting diode is lighted, bidirectional thyristor
Being triggered and turn on, electric heater energising starts to warm up.After temperature rises to uniform temperature, the resistance value of critesistor is with temperature
Degree rising and reduce, make the inspection terminal voltage of integrated circuit reduce, light emitting diode extinguish, bidirectional thyristor shutoff, electricity adds
Hot device power-off stops heating.
Accompanying drawing explanation
The control circuit for electric kettle that Fig. 1 provides for this utility model.
Detailed description of the invention
For ease of skilled artisan understands that technology contents of the present utility model, below in conjunction with the accompanying drawings to this utility model
Content is explained further.
A kind of electric heater control circuit, including: the first electric capacity, the first resistance, the first commutation diode, commutation diode,
Filter capacitor, Zener diode, thermal resistor, potentiometer, light emitting diode, voltage detecting circuit, bidirectional thyristor, electricity
Heater；
First end of described first electric capacity and the first end of the first resistance are connected, second end and first of described first electric capacity
Second end of resistance is connected；Described first electric capacity the second end and the second commutation diode negative pole are connected, described second rectification two pole
Pipe positive pole and the second electric capacity negative pole are connected, and the second capacitance cathode is connected with Zener diode negative pole, described Zener diode positive pole
Being connected with the second commutation diode positive pole, described Zener diode positive pole is also connected with critesistor the first end, described temperature-sensitive electricity
Hindering the second end to be connected with potentiometer the first end, described potentiometer the first end is also connected with voltage detecting circuit the first end, described electricity
Position device the second end is connected with Zener diode negative pole, and described potentiometer the second end and the second capacitance cathode are connected, described potentiometer
Second end and the first commutation diode negative pole are connected, and described first commutation diode positive pole is connected with diode cathode the most in turn；
Described voltage detecting circuit the second end is connected with light emitting diode negative pole, described voltage detecting circuit the 3rd end and critesistor the
One end is connected；Described light emitting diode positive pole is connected with bidirectional thyristor the first end, and described bidirectional thyristor the second end adds with electricity
Hot device the first end is connected, and described electric heater the second end and first electric capacity the first end are connected.
The application also includes that the second resistance, described second resistance the first end are connected with light emitting diode positive pole, described second
Resistance the second end is connected with bidirectional thyristor the first end.
The application also includes that the 3rd resistance, described 3rd resistance the first end are connected with potentiometer the first end, described 3rd electricity
Hindering the second end to be connected with critesistor the second end, described 3rd resistance the second end is also connected with voltage detecting circuit the first end.
Alternating current 220V voltage is after the first resistance and the first capacitance decompression, by the first commutation diode and the second rectification two pole
Pipe carries out voltage multiplying rectifier, and alternating voltage is become DC voltage, and after the second capacitor filtering and Zener diode voltage stabilizing, output is straight
Stream negative pressure.Power-supplying circuit output DC voltage is divided into two-way: a road is as the input direct voltage of voltage detecting circuit；Separately
One tunnel, after critesistor, the 3rd resistance and potentiometer dividing potential drop, provides detection voltage for voltage detecting circuit.When ambient temperature relatively
Time low, the resistance value of critesistor is relatively big, and the test side dividing potential drop of voltage detecting circuit is higher, makes voltage detecting circuit turn on, and sends out
Optical diode is lighted, and bidirectional thyristor is triggered and turns on, and electric heater energising starts to warm up.When temperature rises to uniform temperature
After, the resistance value of critesistor reduces with the rising of temperature, makes the inspection terminal voltage of integrated circuit reduce, and light emitting diode puts out
Go out, bidirectional thyristor turns off, and electric heater power-off stops heating.
Those of ordinary skill in the art is it will be appreciated that embodiment described here is to aid in this reality of reader understanding
By novel principle, it should be understood that protection domain of the present utility model is not limited to such special statement and embodiment.
For a person skilled in the art, this utility model can have various modifications and variations.All in spirit of the present utility model
Within principle, any modification, equivalent substitution and improvement etc. made, should be included in right of the present utility model
Within.
Claims (3)
1. an electric heater control circuit, it is characterised in that including: the first electric capacity, the first resistance, the first commutation diode, whole
Stream diode, filter capacitor, Zener diode, thermal resistor, potentiometer, light emitting diode, voltage detecting circuit, two-way
IGCT, electric heater；
First end of described first electric capacity and the first end of the first resistance are connected, the second end of described first electric capacity and the first resistance
The second end be connected；Described first electric capacity the second end and the second commutation diode negative pole are connected, and described second commutation diode is just
Pole is connected with the second electric capacity negative pole, and the second capacitance cathode is connected with Zener diode negative pole, described Zener diode positive pole and
Two commutation diode positive poles are connected, and described Zener diode positive pole is also connected with critesistor the first end, described critesistor the
Two ends are connected with potentiometer the first end, and described potentiometer the first end is also connected with voltage detecting circuit the first end, described potentiometer
Second end is connected with Zener diode negative pole, and described potentiometer the second end and the second capacitance cathode are connected, described potentiometer second
End is connected with the first commutation diode negative pole, and described first commutation diode positive pole is connected with diode cathode the most in turn；Described
Voltage detecting circuit the second end is connected with light emitting diode negative pole, described voltage detecting circuit the 3rd end and critesistor the first end
It is connected；Described light emitting diode positive pole is connected with bidirectional thyristor the first end, described bidirectional thyristor the second end and electric heater
First end is connected, and described electric heater the second end and first electric capacity the first end are connected.
A kind of electric heater control circuit the most according to claim 1, it is characterised in that also include the second resistance, described the
Two resistance the first ends are connected with light emitting diode positive pole, and described second resistance the second end is connected with bidirectional thyristor the first end.
A kind of electric heater control circuit the most according to claim 1, it is characterised in that also include the 3rd resistance, described the
Three resistance the first ends are connected with potentiometer the first end, and described 3rd resistance the second end is connected with critesistor the second end, and described
Three resistance the second ends are also connected with voltage detecting circuit the first end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620500363.6U CN205690517U (en) | 2016-05-26 | 2016-05-26 | A kind of electric heater control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620500363.6U CN205690517U (en) | 2016-05-26 | 2016-05-26 | A kind of electric heater control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205690517U true CN205690517U (en) | 2016-11-16 |
Family
ID=57262439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620500363.6U Expired - Fee Related CN205690517U (en) | 2016-05-26 | 2016-05-26 | A kind of electric heater control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205690517U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105928055A (en) * | 2016-05-26 | 2016-09-07 | 成都灯岛科技有限公司 | Electric heater control circuit |
| CN105953302A (en) * | 2016-05-26 | 2016-09-21 | 成都灯岛科技有限公司 | Improved control circuit for electric heater |
-
2016
- 2016-05-26 CN CN201620500363.6U patent/CN205690517U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105928055A (en) * | 2016-05-26 | 2016-09-07 | 成都灯岛科技有限公司 | Electric heater control circuit |
| CN105953302A (en) * | 2016-05-26 | 2016-09-21 | 成都灯岛科技有限公司 | Improved control circuit for electric heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Huang Baojiang Inventor before: Zhang Kai |
|
| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180504 Address after: 528425 Yongyi Industrial Zone, Donghai five road, Dongfeng Town, Zhongshan, Guangdong Patentee after: Zhongshan Lontan Electrical Industrial Co.,Ltd. Address before: 610041 Sichuan Chengdu high tech Zone Fucheng Avenue West Section 399 5 5 1 Units 8 level 10 Patentee before: CHENGDU DENGDAO TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161116 |