CN105928055A - Electric heater control circuit - Google Patents
Electric heater control circuit Download PDFInfo
- Publication number
- CN105928055A CN105928055A CN201610364073.8A CN201610364073A CN105928055A CN 105928055 A CN105928055 A CN 105928055A CN 201610364073 A CN201610364073 A CN 201610364073A CN 105928055 A CN105928055 A CN 105928055A
- Authority
- CN
- China
- Prior art keywords
- voltage
- resistance
- electric heater
- diode
- potentiometer
- 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- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1096—Arrangement or mounting of control or safety devices for electric heating systems
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Resistance Heating (AREA)
Abstract
The invention discloses an electric heater control circuit. After alternating current 220 V voltage is reduced by a first resistor and a first capacitor, the double voltage rectification is performed by a first rectification diode and a second rectification diode; and direct current negative voltage is output after filtration of a second capacitor and voltage stabilization of a voltage stabilization diode. Direct current voltage output by a power supply circuit is divided into two ways: one way serves as input direct current voltage of a voltage detecting circuit; and the other way supplies detecting voltage to the voltage detecting circuit after voltage division by a thermistor, a third resistor and a potentiometer. When the environment temperature is lower, a resistance value of the thermistor is higher, the partial pressure at a detecting end of the voltage detecting circuit is higher, the voltage detecting circuit is conducted, a light emitting diode is lightened, a bidirectional thyristor is triggered to conduct, and an electric heater is electrified to heat. After the temperature rises to a certain temperature, the resistance value of the thermistor is reduced along with rise of the temperature, so that the voltage at a detecting end of an integrated circuit is reduced, the light emitting diode is extinguished, the bidirectional thyristor is switched off, and the electric heater loses power to stop heating.
Description
Technical field
The present invention relates to control circuit field, particularly to a kind of electric heater control circuit.
Background technology
The low-temperature primary in winter time is bettered a record, and people are more and more vigorous to the demand of electric heater, this top to a great extent
The life of people, increase warm for cold winter, but the safety that uses of electric heater the most increasingly cause the weight of people
Depending on, the work of electric heater is mainly realized by control circuit, and therefore the design on control circuit of electric heater is particularly important.
Summary of the invention
The present invention solves above-mentioned technical problem, it is proposed that a kind of electric heater control circuit, automatically powered off by design steam type
Switch, temperature controller and thermal cut-off, realize the security control of insulating pot.
The technical solution used in the present invention 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, 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.
Further, also include 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.
Further, also include 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.
Beneficial effects of the present invention: a kind of electric heater control circuit of the present invention, alternating current 220V voltage is through the first resistance and
After one capacitance decompression, the first commutation diode and the second commutation diode carry out voltage multiplying rectifier, alternating voltage is become direct current
Voltage, exports direct current negative pressure after the second capacitor filtering and Zener diode voltage stabilizing.Power-supplying circuit output DC voltage divides
For two-way: a road is as the input direct voltage of voltage detecting circuit；Another road is through critesistor, the 3rd resistance and potentiometer
After 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 big, electricity
The test side dividing potential drop of pressure testing circuit is higher, makes voltage detecting circuit turn on, and light emitting diode is lighted, and bidirectional thyristor is by touching
Sending out and turn on, electric heater energising starts to warm up.After temperature rises to uniform temperature, the resistance value of critesistor is with temperature
Rising and reduce, make the inspection terminal voltage of integrated circuit reduce, light emitting diode extinguish, bidirectional thyristor turn off, electricity adds
Hot device power-off stops heating.
Accompanying drawing explanation
The control circuit for electric kettle that Fig. 1 provides for the present invention.
Detailed description of the invention
For ease of skilled artisan understands that the technology contents of the present invention, below in conjunction with the accompanying drawings present invention is explained further
Release.
As it is shown in figure 1, the technical scheme of the application is: a kind of electric heater control circuit, including: the first electric capacity, the first electricity
Resistance, the first commutation diode, commutation diode, filter capacitor, Zener diode, thermal resistor, potentiometer, send out
Optical 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, 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.
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
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 resistance
Two ends are connected with critesistor the second end, and 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 commutation diode
Carry out voltage multiplying rectifier, alternating voltage is become DC voltage, 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；Separately
One tunnel, after critesistor, the 3rd resistance and potentiometer dividing potential drop, provides detection voltage for voltage detecting circuit.Work as ambient temperature
Time relatively 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,
Light emitting diode is lighted, and bidirectional thyristor is triggered and turns on, and electric heater energising starts to warm up.When temperature rises to necessarily
After temperature, the resistance value of critesistor reduces with the rising of temperature, makes the inspection terminal voltage of integrated circuit reduce, and luminous two
Pole pipe extinguishes, 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 the reader understanding present invention's
Principle, it should be understood that protection scope of the present invention is not limited to such special statement and embodiment.For this area
For technical staff, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, made appoint
What amendment, equivalent, improvement etc., within should be included in scope of the presently claimed invention.
Claims (3)
1. an electric heater control circuit, it is characterised in that including: the first electric capacity, the first resistance, the first rectification two pole
Pipe, commutation diode, filter capacitor, Zener diode, thermal resistor, potentiometer, light emitting diode, voltage are examined
Slowdown monitoring circuit, bidirectional thyristor, 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, institute
Stating second resistance the first end to be connected with light emitting diode positive pole, 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, institute
Stating the 3rd resistance the first end to be connected with potentiometer the first end, described 3rd resistance the second end is connected with critesistor the second end, institute
State the 3rd resistance the second end to be also connected with voltage detecting circuit the first end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610364073.8A CN105928055A (en) | 2016-05-26 | 2016-05-26 | Electric heater control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610364073.8A CN105928055A (en) | 2016-05-26 | 2016-05-26 | Electric heater control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105928055A true CN105928055A (en) | 2016-09-07 |
Family
ID=56842436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610364073.8A Withdrawn CN105928055A (en) | 2016-05-26 | 2016-05-26 | Electric heater control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105928055A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202720527U (en) * | 2012-06-29 | 2013-02-06 | 童兵 | Constant temperature controller circuit |
| US20140217082A1 (en) * | 2011-06-22 | 2014-08-07 | Shenzhen Xishuo Technology Company Limited | Electric blanket and a low voltage and constant temperature controlling device thereof |
| CN104349517A (en) * | 2013-07-25 | 2015-02-11 | 常州浩瀚万康纳米材料有限公司 | Heating control circuit |
| CN104358700A (en) * | 2014-11-27 | 2015-02-18 | 滨州学院 | Fan control circuit with functions of controlling temperature and preventing touch and electric leakage |
| CN104656697A (en) * | 2013-11-19 | 2015-05-27 | 四川省迪特尔电子有限公司 | Temperature control circuit for an electrical heater. |
| CN104676741A (en) * | 2013-11-27 | 2015-06-03 | 成都优游信息技术有限公司 | Warmer temperature control circuit |
| CN105068575A (en) * | 2015-09-01 | 2015-11-18 | 芜湖瑞泰精密机械有限公司 | An agricultural product cultivating constant temperature control circuit |
| CN205690517U (en) * | 2016-05-26 | 2016-11-16 | 成都灯岛科技有限公司 | A kind of electric heater control circuit |
-
2016
- 2016-05-26 CN CN201610364073.8A patent/CN105928055A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140217082A1 (en) * | 2011-06-22 | 2014-08-07 | Shenzhen Xishuo Technology Company Limited | Electric blanket and a low voltage and constant temperature controlling device thereof |
| CN202720527U (en) * | 2012-06-29 | 2013-02-06 | 童兵 | Constant temperature controller circuit |
| CN104349517A (en) * | 2013-07-25 | 2015-02-11 | 常州浩瀚万康纳米材料有限公司 | Heating control circuit |
| CN104656697A (en) * | 2013-11-19 | 2015-05-27 | 四川省迪特尔电子有限公司 | Temperature control circuit for an electrical heater. |
| CN104676741A (en) * | 2013-11-27 | 2015-06-03 | 成都优游信息技术有限公司 | Warmer temperature control circuit |
| CN104358700A (en) * | 2014-11-27 | 2015-02-18 | 滨州学院 | Fan control circuit with functions of controlling temperature and preventing touch and electric leakage |
| CN105068575A (en) * | 2015-09-01 | 2015-11-18 | 芜湖瑞泰精密机械有限公司 | An agricultural product cultivating constant temperature control circuit |
| CN205690517U (en) * | 2016-05-26 | 2016-11-16 | 成都灯岛科技有限公司 | A kind of electric heater control circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204104200U (en) | A kind of Novel light-operated LED drive circuit | |
| CN104853455B (en) | A kind of electric blanket circuit with defencive function | |
| CN205690517U (en) | A kind of electric heater control circuit | |
| CN105892528A (en) | Improved electric heater control circuit | |
| CN105395309B (en) | The temperature control circuit and hot-water bag of hot-water bag | |
| CN210469748U (en) | Temperature control and protection device for PTC/NTC heating wire | |
| CN104656697A (en) | Temperature control circuit for an electrical heater. | |
| CN204697310U (en) | A kind of electric blanket circuit with defencive function | |
| CN105928055A (en) | Electric heater control circuit | |
| CN103279043B (en) | Automatic open close electric controller | |
| CN203968094U (en) | Energy-saving safe switch | |
| CN208172625U (en) | Noval temp.-control | |
| CN202959766U (en) | Automatic control whole line protection electric blanket | |
| CN203918160U (en) | One can automatically shut down energy-efficient constant-temperature soldering iron device | |
| CN105953302A (en) | Improved control circuit for electric heater | |
| CN205176685U (en) | Adopt bridge rectifier to pile temperature -control circuit of rectification design | |
| CN106054976A (en) | Improved electric heater control circuit | |
| CN202874990U (en) | Highly efficient and energy-saving electric kettle | |
| CN103417109B (en) | Energy-efficient electric kettle | |
| CN203275905U (en) | Automatic on-off electrothermal controller | |
| CN203573186U (en) | Temperature control circuit for electrical heater | |
| CN203506391U (en) | Color-changeable water kettle with temperature indication function | |
| CN204743374U (en) | Air conditioner mattress | |
| CN204462905U (en) | A kind of dual control circuit temperature | |
| CN210143668U (en) | Portable electric mosquito killer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20160907 |
|
| WW01 | Invention patent application withdrawn after publication |