CN106559923A - A kind of power conditioning circuitry of many gear electric heaters - Google Patents

A kind of power conditioning circuitry of many gear electric heaters Download PDF

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Publication number
CN106559923A
CN106559923A CN201610960916.0A CN201610960916A CN106559923A CN 106559923 A CN106559923 A CN 106559923A CN 201610960916 A CN201610960916 A CN 201610960916A CN 106559923 A CN106559923 A CN 106559923A
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CN
China
Prior art keywords
power
feet
circuit
positive pole
electric capacity
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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.)
Pending
Application number
CN201610960916.0A
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Chinese (zh)
Inventor
龙邹
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Guangxi University
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Guangxi University
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Priority to CN201610960916.0A priority Critical patent/CN106559923A/en
Publication of CN106559923A publication Critical patent/CN106559923A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B1/00Details of electric heating devices
    • H05B1/02Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • H05B1/0227Applications
    • H05B1/0252Domestic applications
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B1/00Details of electric heating devices
    • H05B1/02Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • H05B1/0227Applications
    • H05B1/0252Domestic applications
    • H05B1/0255Irons
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B1/00Details of electric heating devices
    • H05B1/02Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • H05B1/0227Applications
    • H05B1/0252Domestic applications
    • H05B1/0258For cooking
    • H05B1/0261For cooking of food
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B1/00Details of electric heating devices
    • H05B1/02Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • H05B1/0227Applications
    • H05B1/0252Domestic applications
    • H05B1/0258For cooking
    • H05B1/0269For heating of fluids

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Control Of Resistance Heating (AREA)

Abstract

The invention provides a kind of power conditioning circuitry of many gear electric heaters, its circuit is made up of power circuit, zero cross detection circuit and power stepping circuit, power circuit is responsible for power supply, zero-crossing pulse is transferred to zero cross detection circuit the decade computer/pulsqe distributor of power stepping circuit, zero-crossing pulse is counted by which and pulse distribution, the output pulse of decade computer/pulsqe distributor is loaded on optocoupler by reverser, and then controls bidirectional thyristor by optocoupler.As power regulating switch is adjusted to the output pulse frequency that different gears can change decade computer/pulsqe distributor, therefore adjust power regulating switch to be adjusted the angle of flow of bidirectional thyristor, thus reach the purpose of the heating power of many gear control electric heaters.Due to circuit of the present invention, in gear switch, heater can be always maintained at conducting state, it is not easy to cause heater failure, therefore better than the power conditioning circuitry of general many gear electric heaters.

Description

A kind of power conditioning circuitry of many gear electric heaters
Technical field
The present invention relates to a kind of power conditioning circuitry, specifically a kind of power conditioning circuitry of many gear electric heaters, belong to Electronic technology field.
Background technology
Had much using the household electrical appliance heated by electric heater, such as electric heater, electric furnace, electric chafing dish, electric iron etc., These household electrical appliances are generally provided with corresponding power gear switch and carry out stepping regulation to the heating power of electric heater, simple at present Stepping regulative mode has two kinds, and one kind is that electric heater is divided into multistage, controls to carry out using wherein several sections by driving switch Heating, also a kind of heating/dwell time ratio for being to control by driving switch electric heater, and then realize carrying out heating power Stepping is adjusted.The break-make of electric heater to be switched over during due to transferring the files, frequently break-make switching easily causes electric heater Damage, therefore it is desirable that can be by a bidirectional thyristor of connecting on electric heater loop, by controlling bidirectional thyristor The angle of flow is carrying out stepping to heater.The angle of flow is bigger, and the electric current that heater passes through is bigger, and heating power is bigger;The angle of flow Less, the electric current that heater passes through is less, and heating power is also less.It is two-way by controlled loading due to switching gear size Realizing, during gear switch, heater can be always maintained at conducting state to the high-frequency pulse voltage at thyristor control end, therefore not It is susceptible to damage.
The content of the invention
It is an object of the invention to provide a kind of power conditioning circuitry of many gear electric heaters, to solve current heater class electricity Device carries out to switch over the break-make of electric heater when power is transferred the files, and easily causes the problem of the damage of electric heater.
The present invention concrete technical scheme be:
A kind of power conditioning circuitry of many gear electric heaters, its circuit is by power circuit, zero cross detection circuit and power stepping electricity Road constitutes.
In the power circuit, the two ends of 220V civil power connection transformer T1 primary coils, the secondary wire of transformator T1 Circle is provided with three taps, centre tap ground connection, exports 9V alternating currents between upper and lower two tap and centre tap, upper tap and Lower tap connects the positive pole of diode D1 and D2 respectively, and the negative pole of diode D1 and D2 connects the positive pole of electric capacity C1 jointly, electric capacity C1's Minus earth, supplies unidirectional current to late-class circuit from the positive pole of electric capacity C1.
In the zero cross detection circuit, the upper tap of the secondary coil of transformator T1 and lower tap meet diode D3 respectively With the positive pole of D4, after the common series resistor R1 of negative pole of diode D3 and D4 access amplifier LM358 2 feet, the 3 of amplifier LM358 Foot and 4 feet ground connection, 8 feet connect the positive pole of electric capacity C1, and 1 foot is to power stepping circuit output.
In the power stepping circuit, 1 foot of zero cross detection circuit amplifier LM358 connects decade computer/pulse point 14 feet of Fitter C D4017 chips, 16 feet of CD4017 chips connect the positive pole of electric capacity C1,8 feet and 13 feet ground connection, and 15 feet connect fourth gear The common port of power regulating switch S1,4,7,10,1 foot are connected with 1,2,3, the 4 gear ends of fourth gear power regulating switch S1 respectively Connect, 2 feet and 3 feet connect the positive pole of diode D5 and D6 respectively, the negative pole of diode D5 and D6 accesses the 1 of phase inverter 74LS04 jointly Foot;The 7 feet ground connection of phase inverter 74LS04,14 foot series resistor R2 are followed by the positive pole of electric capacity C1, and 2 feet connect 2 feet of optocoupler TCP521; The 1 foot series resistor R3 of optocoupler TCP521 connects the positive pole of electric capacity C1, and 4 feet connect the positive pole of electric capacity C1, and 3 feet connect bidirectional thyristor VS's One end of control pole and resistance R4, the other end ground connection of resistance R4;The first anode of bidirectional thyristor VS meets the N of 220V civil powers Line, second plate concatenation electric heater EH are followed by the L lines of 220V civil powers.
The diode D1-D6 adopts 1N4007, bidirectional thyristor VS to select using the power according to electric heater EH, Electric capacity C1 adopts 470 μ F/25V electrochemical capacitors, resistance R1 to adopt 10k Ω resistance.
The power conditioning circuitry of many gear electric heaters of the present invention is by power circuit, zero cross detection circuit and power stepping electricity Road constitutes, and power circuit is responsible for power supply, and zero-crossing pulse is transferred to zero cross detection circuit the decade counter of power stepping circuit Device/pulsqe distributor, is counted to zero-crossing pulse by which and pulse distribution, the output of decade computer/pulsqe distributor Pulse is loaded on optocoupler by reverser, and then controls bidirectional thyristor by optocoupler.As power regulating switch is adjusted to not Same gear can change the output pulse frequency of decade computer/pulsqe distributor, therefore regulation power regulating switch can The angle of flow of bidirectional thyristor is adjusted, the purpose of the heating power of many gear control electric heaters is thus reached.Due to this Invention circuit heater in gear switch can be always maintained at conducting state, it is not easy to cause heater failure, therefore than general The power conditioning circuitry of many gear electric heaters to get well.
Description of the drawings
Fig. 1 is the circuit diagram of the temperature control circuit of many gear electric heaters of the invention.
Specific embodiment
The present invention will be further described below in conjunction with the accompanying drawings.
As shown in figure 1, the power conditioning circuitry of many gear electric heaters of the present invention by power circuit, zero cross detection circuit and Power stepping circuit is constituted.
In the power circuit, the two ends of 220V civil power connection transformer T1 primary coils, the secondary wire of transformator T1 Circle is provided with three taps, centre tap ground connection, exports 9V alternating currents between upper and lower two tap and centre tap, upper tap and Lower tap connects the positive pole of diode D1 and D2 respectively, and the negative pole of diode D1 and D2 connects the positive pole of electric capacity C1 jointly, electric capacity C1's Minus earth, supplies unidirectional current to late-class circuit from the positive pole of electric capacity C1.
In the zero cross detection circuit, the upper tap of the secondary coil of transformator T1 and lower tap meet diode D3 respectively With the positive pole of D4, after the common series resistor R1 of negative pole of diode D3 and D4 access amplifier LM358 2 feet, the 3 of amplifier LM358 Foot and 4 feet ground connection, 8 feet connect the positive pole of electric capacity C1, and 1 foot is to power stepping circuit output.
In the power stepping circuit, 1 foot of zero cross detection circuit amplifier LM358 connects decade computer/pulse point 14 feet of Fitter C D4017 chips, 16 feet of CD4017 chips connect the positive pole of electric capacity C1,8 feet and 13 feet ground connection, and 15 feet connect fourth gear The common port of power regulating switch S1,4,7,10,1 foot are connected with 1,2,3, the 4 gear ends of fourth gear power regulating switch S1 respectively Connect, 2 feet and 3 feet connect the positive pole of diode D5 and D6 respectively, the negative pole of diode D5 and D6 accesses the 1 of phase inverter 74LS04 jointly Foot;The 7 feet ground connection of phase inverter 74LS04,14 foot series resistor R2 are followed by the positive pole of electric capacity C1, and 2 feet connect 2 feet of optocoupler TCP521; The 1 foot series resistor R3 of optocoupler TCP521 connects the positive pole of electric capacity C1, and 4 feet connect the positive pole of electric capacity C1, and 3 feet connect bidirectional thyristor VS's One end of control pole and resistance R4, the other end ground connection of resistance R4;The first anode of bidirectional thyristor VS meets the N of 220V civil powers Line, second plate concatenation electric heater EH are followed by the L lines of 220V civil powers.
This circuit work when, 220V civil power Jing transformator T1 blood pressure lowerings, diode D1, D2 all wave rectification and electric capacity C1 filtering Afterwards, the DC voltage for forming about 9V is exported to rear class.The pulsating dc voltage Jing resistance R1 produced after diode D3, D4 rectification add 2 foot inverting inputs of amplifier LM358 are loaded onto, when alternating current zero passage, pulsating dc voltage also zero passage, 1 foot of amplifier LM358 Outfan can export zero-crossing pulse and be loaded onto 14 feet of CD4017 chips, and CD4017 chips are counted to zero-crossing pulse and arteries and veins After punching distribution, from its 2 foot and 3 feet output high level pulse, low level after the inverted device 74LS04 of high level pulse is anti-phase, is formed Pulse, and then optocoupler TCP521 conductings are triggered, the high trigger pulses exported by 3 feet of optocoupler TCP521 control two-way brilliant lock The angle of flow of pipe VS is realizing the control to electric heater EH power.
By adjusting fourth gear power regulating switch S1, gear regulation can be carried out to the heating power of electric heater EH.When four When shelves power regulating switch S1 is placed in 1 grade, 1 foot of amplifier LM358 often exports 1 zero-crossing pulse, 2 feet of CD4017 chips or 3 Foot will produce 1 high level pulse, and now the ducting capacity of bidirectional thyristor VS is most strong, electric heater EH full power operations;When When fourth gear power regulating switch S1 is placed in 3 grades, 1 foot of amplifier LM358 often exports 4 zero-crossing pulses, 2 feet of CD4017 chips or 3 feet can just produce 2 high level pulses, and now the ducting capacity of bidirectional thyristor VS only has 50%, electric heater EH half-power works Make.
Above-mentioned legend is only the exemplary embodiments of the present invention, is not limited to the present invention, all spirit in the present invention and Any modification made within principle or equivalent and improvement etc., should be included within the scope of the present invention.

Claims (2)

1. a kind of power conditioning circuitry of many gear electric heaters, is characterized in that:The power conditioning circuitry is by power circuit, zero passage Detection circuit and power stepping circuit composition;
In the power circuit, the two ends of 220V civil power connection transformer T1 primary coils, the secondary coil of transformator T1 set There are three taps, centre tap ground connection exports 9V alternating currents between upper and lower two tap and centre tap, upper tap is taken out with Head connects the positive pole of diode D1 and D2 respectively, and the negative pole of diode D1 and D2 connects the positive pole of electric capacity C1, the negative pole of electric capacity C1 jointly Ground connection, supplies unidirectional current to late-class circuit from the positive pole of electric capacity C1;
In the zero cross detection circuit, the upper tap of the secondary coil of transformator T1 and lower tap meet diode D3 and D4 respectively Positive pole, after the common series resistor R1 of negative pole of diode D3 and D4 access amplifier LM358 2 feet, 3 feet of amplifier LM358 and 4 Foot is grounded, and 8 feet connect the positive pole of electric capacity C1, and 1 foot is to power stepping circuit output;
In the power stepping circuit, 1 foot of zero cross detection circuit amplifier LM358 connects decade computer/pulsqe distributor 14 feet of CD4017 chips, 16 feet of CD4017 chips connect the positive pole of electric capacity C1,8 feet and 13 feet ground connection, and 15 feet connect fourth gear power The common port of switch S1 is adjusted, 4,7,10,1 foot is connected with 1,2,3, the 4 gear ends of fourth gear power regulating switch S1 respectively, 2 Foot and 3 feet connect the positive pole of diode D5 and D6 respectively, and the negative pole of diode D5 and D6 accesses 1 foot of phase inverter 74LS04 jointly; The 7 feet ground connection of phase inverter 74LS04,14 foot series resistor R2 are followed by the positive pole of electric capacity C1, and 2 feet connect 2 feet of optocoupler TCP521;Light The 1 foot series resistor R3 of coupling TCP521 connects the positive pole of electric capacity C1, and 4 feet connect the positive pole of electric capacity C1, and 3 feet connect the control of bidirectional thyristor VS Pole processed and one end of resistance R4, the other end ground connection of resistance R4;The first anode of bidirectional thyristor VS connects the N lines of 220V civil powers, Second plate concatenation electric heater EH is followed by the L lines of 220V civil powers.
2. the power conditioning circuitry of many gear electric heaters according to claim 1, is characterized in that:The diode D1-D6 1N4007, bidirectional thyristor VS is adopted to select using the power according to electric heater EH, electric capacity C1 is electrolysed using 470 μ F/25V Electric capacity, resistance R1 adopt 10k Ω resistance.
CN201610960916.0A 2016-11-04 2016-11-04 A kind of power conditioning circuitry of many gear electric heaters Pending CN106559923A (en)

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CN201610960916.0A CN106559923A (en) 2016-11-04 2016-11-04 A kind of power conditioning circuitry of many gear electric heaters

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Application Number Priority Date Filing Date Title
CN201610960916.0A CN106559923A (en) 2016-11-04 2016-11-04 A kind of power conditioning circuitry of many gear electric heaters

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109445511A (en) * 2018-11-29 2019-03-08 国网辽宁省电力有限公司经济技术研究院 A kind of 10 kilovolts of thyristor controlled series compensation power regulating systems
CN110531665A (en) * 2019-09-02 2019-12-03 佛山科学技术学院 A kind of beauty appliance electronic controller

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201018448Y (en) * 2006-10-23 2008-02-06 沈建兴 Three-phase power-saving device for sewing machine
CN201114956Y (en) * 2007-06-20 2008-09-10 上海剑雄节能技术有限公司 Digital control crystal tube lighting power saver
CN102393660A (en) * 2011-09-15 2012-03-28 徐建坤 Wireless remote-controlled multi-range power controller
CN103874261A (en) * 2012-12-10 2014-06-18 江苏施诺照明有限公司 Single-key remote-control dimming LED lamp
CN104348378A (en) * 2013-07-25 2015-02-11 常州浩瀚万康纳米材料有限公司 Temperature adjusting circuit for electric appliances
CN206260092U (en) * 2016-11-04 2017-06-16 东莞市胜控电子科技有限公司 A kind of power conditioning circuitry of many gear electric heaters

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201018448Y (en) * 2006-10-23 2008-02-06 沈建兴 Three-phase power-saving device for sewing machine
CN201114956Y (en) * 2007-06-20 2008-09-10 上海剑雄节能技术有限公司 Digital control crystal tube lighting power saver
CN102393660A (en) * 2011-09-15 2012-03-28 徐建坤 Wireless remote-controlled multi-range power controller
CN103874261A (en) * 2012-12-10 2014-06-18 江苏施诺照明有限公司 Single-key remote-control dimming LED lamp
CN104348378A (en) * 2013-07-25 2015-02-11 常州浩瀚万康纳米材料有限公司 Temperature adjusting circuit for electric appliances
CN206260092U (en) * 2016-11-04 2017-06-16 东莞市胜控电子科技有限公司 A kind of power conditioning circuitry of many gear electric heaters

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109445511A (en) * 2018-11-29 2019-03-08 国网辽宁省电力有限公司经济技术研究院 A kind of 10 kilovolts of thyristor controlled series compensation power regulating systems
CN109445511B (en) * 2018-11-29 2024-03-29 国网辽宁省电力有限公司经济技术研究院 10 kilovolt thyristor valve group power regulating system
CN110531665A (en) * 2019-09-02 2019-12-03 佛山科学技术学院 A kind of beauty appliance electronic controller

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Application publication date: 20170405

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