CN103294082A - Temperature control circuit capable of controlling two heating devices - Google Patents
Temperature control circuit capable of controlling two heating devices Download PDFInfo
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- CN103294082A CN103294082A CN2012100528263A CN201210052826A CN103294082A CN 103294082 A CN103294082 A CN 103294082A CN 2012100528263 A CN2012100528263 A CN 2012100528263A CN 201210052826 A CN201210052826 A CN 201210052826A CN 103294082 A CN103294082 A CN 103294082A
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- 238000010438 heat treatment Methods 0.000 title abstract description 19
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 18
- 230000008878 coupling Effects 0.000 claims description 10
- 238000010168 coupling process Methods 0.000 claims description 10
- 238000005859 coupling reaction Methods 0.000 claims description 10
- 239000003990 capacitor Substances 0.000 abstract description 4
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 230000001960 triggered effect Effects 0.000 abstract 1
- 230000010363 phase shift Effects 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012827 research and development Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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Abstract
The invention relates to a temperature control circuit capable of controlling two heating devices. Each of the two heating devices is provided with a heating line and a sensing line, one ends of the two sensing lines are respectively connected with a diode, the polarities of the ends, connected with the sensing line, of the two diodes are opposite, the other ends of the two sensing lines are connected with a capacitor to form an RC circuit, the two heating lines are simultaneously connected with a bidirectional thyristor after being respectively connected with one diode, and the polarities of the ends, connected with the heating lines of the two diodes are opposite. Therefore, the two heating lines are heated by a positive half circle and a negative half circle of the alternating current respectively, when the sensing lines have certain displacement due to temperature changes of the heating lines, the bidirectional thyristor is controlled by a controller, the positive half circle and the negative half circle cannot be triggered, and accordingly the heating temperatures of the two heating lines can be respectively controlled.
Description
Technical field
The relevant a kind of temperature-adjusting circuit of the present invention, refer to especially a kind of can be with simple elements to control two temperature-adjusting circuits such as electro-heat equipments such as electric blanket, hot compress pads respectively.
Background technology
Electro-heat equipment such as hot compress pad is being used at present on the market widely, and allow heater wire after being heated to the temperature that the user sets, interrupt automatically, then can allow electro-heat equipment remain in the predetermined heated perimeter, so that the function such as hot compress to be provided, and guarantee to use safety.
In order effectively to reach the effect of temperature control, the U.S. the 5th, 861, No. 610 patent cases are with positive temperature coefficient (PTC) (Positive Temperature Coefficient, PTC) element is as sense wire, and with the variation of sensing temperature, and the heater wire of arranging in pairs or groups simultaneously is to carry out the temperature control heating.Above-mentioned technology is disclosed in the U.S. the 6th, 300, No. 597, the 6th, 310, No. 322 and No. 6768086 patent case simultaneously.
And the U.S. the 7th, 180, No. 037 patent case has then disclosed the application examples of another kind of PTC element or NTC element, its with aforementioned each prior art maximum different be in: the zero crossing of sensing AC power signal (zero crossing) responds the zero cross signal that produces, simultaneously sensing PTC element or NTC element Yin Wendu cause resistance variations and the zero cross signal of the generation that zero crossing responds of the phase shift AC power signal that produces, and by the phase shift time that measures two zero cross signals, and strengthen and after reaching the predetermined phase shift time point of controller at the phase shift time, with the conducting of control circuit or open circuit, reach the effect of constant temperature heating by controller output control signal.
By above-mentioned various temperature control methods, can reach the effect of temperature control really.Yet above-mentioned temperature control method only can heat at the heater wire in the electro-heat equipment, and when heating respectively for the heater wire in two electro-heat equipments, can produce following problem:
1. owing to need two groups of temperature control circuits to heat two heater wires respectively, will increase the cost of the manufacturing.
2. if when controlling two heater wires simultaneously with a switch, only can heat simultaneously or stop simultaneously heating two heater wires, and can't control the heater wire in two electro-heat equipments respectively.
3. when controlling two heater wires simultaneously with a switch, and two electro-heat equipments are placed on diverse location respectively, and when causing two different sense wires to sense different temperature, controller will carry out temperature control with maximum temperature, thus, reached preset temperature and when ending to continue heating, will interrupt heating the heater wire that another does not reach preset temperature as yet simultaneously when a heater wire, and can't allow two electro-heat equipments bring into play the function of hot compress simultaneously, and cause the inconvenience when using.
In view of this, in order to improve above-mentioned shortcoming, make temperature-adjusting circuit can control two electro-heat equipments respectively, and can save manufacturing cost, long-pending experience and the constantly research and development improvement for many years of creator has generation of the present invention then.
Summary of the invention
Fundamental purpose of the present invention is providing a kind of temperature-adjusting circuit of controlling two electro-heat equipments, respectively the heater wire in two electro-heat equipments is heated respectively by positive half cycle and negative half period with alternating current, and with sense wire difference sensing, when making the heating-up temperature of two heater wires reach preset value respectively, control the structure that termination is respectively heated respectively with controller, in order to can allow two electro-heat equipments all can reach the effect of hot compress, and allow the user use two electro-heat equipments according to need and at the same time or separately.
Secondary objective of the present invention is providing a kind of temperature-adjusting circuit of controlling two electro-heat equipments, configuration by a bidirectional thyristor and several diodes, to control the structure of two heater wires in the electro-heat equipment respectively, in order to can effectively simplify element, to save manufacturing cost.
For reaching the purpose of foregoing invention, two set electro-heat equipments of the present invention are to comprise first electro-heat equipment and second electro-heat equipment, be provided with first heater wire and first sense wire in first electro-heat equipment, be provided with second heater wire and second sense wire in second electro-heat equipment, first, the second heater wire parallel connection, first, the second sense wire parallel connection, and first, first end and first of second heater wire, first end of second sense wire connects a polarity of AC power simultaneously, and the temperature-adjusting circuit that can control two electro-heat equipments comprises a two-way thyristor (TRIAC), one controller, one electric capacity and four diodes.Wherein, first end of bidirectional thyristor connects second end of first, second heater wire, and second end of bidirectional thyristor connects another polarity of AC power; This controller connects second end of first, second sense wire, be provided with first node between second end of controller and first, second sense wire, and this controller comprises trigger circuit, trigger circuit connect the gate of bidirectional thyristor, supply gauge tap so that alternating current is two half-waves or the conducting of a half-wave mode; This capacitive coupling first node; First end of this first diode connects first end of first sense wire; First end of this second diode connects first end of second sense wire, and first end of second diode is opposite with the polarity of first end of first diode; Second end of the 3rd diode connects second end of first heater wire; Second end of the 4th diode connects second end of second heater wire, and second end of the 4th diode is opposite with the polarity of second end of the 3rd diode.
During enforcement, this first sense wire is positive temperature coefficient (PTC) (Positive Temperature Coefficient, PTC) element or negative temperature coefficient (Negative Temperature Coefficient, NTC) wherein a kind of.
During enforcement, be provided with Section Point, the 3rd node and the 4th node between the polarity of first end of this second heater wire and AC power, second end coupling Section Point of first diode, first end of first heater wire the 3rd node that is coupled, second end of second diode the 4th node that is coupled, and be provided with the 6th node between second end of second sense wire and the first node, second end of this first sense wire the 6th node that is coupled.
During enforcement, be provided with the 5th node between the 4th diode and the switch, first end of the 3rd diode the 5th node that is coupled.
For ease of to the present invention more deep understanding being arranged, be specified in the back now:
Description of drawings
Fig. 1 is the circuit box synoptic diagram of preferred embodiment of the present invention.
Fig. 2 is the circuit box synoptic diagram of preferred embodiment of the present invention when conduction.
Fig. 3 is the synoptic diagram of preferred embodiment of the present invention when the phase-shift phase of positive half cycle and negative half period changes.
Wherein:
Embodiment
See also shown in Figure 1, can control the preferred embodiment of the temperature-adjusting circuit 1 of two electro-heat equipments for the present invention, wherein, these two electro-heat equipments comprise one first electro-heat equipment 2 and one second electro-heat equipment 3, and first, second electro-heat equipment 2,3 is preferably two continuous hot compress pads.Be provided with first heater wire 4 and first sense wire 5 in parallel in first electro-heat equipment 2, be provided with second heater wire 6 and second sense wire 7 in parallel in second electro-heat equipment 3, first heater wire 4 is connected on the same heater circuit with state in parallel with second heater wire 6, first sense wire 5 is connected on the same sensing circuit with state in parallel with second sense wire 7, and first sense wire 5 and second sense wire 7 are respectively positive temperature coefficient (PTC) (Positive Temperature Coefficient, PTC) lead, described first sense wire 5 and second sense wire 7 also can be negative temperature coefficient (Negative Temperature Coefficient, NTC) lead, when temperature is risen, allow resistance become big relatively or diminish.In addition, first, second heater wire 4,6 first end 41,61 are connected a polarity of AC power 9 simultaneously with first, second sense wire 5,7 first end 51,71, and are provided with Section Point P2, the 3rd node P3 and the 4th node P4 between the polarity of first end 61 of this second heater wire 6 and AC power 9 in regular turn.
And this temperature-adjusting circuit comprises one first diode D 1, one second diode D2, one the 3rd diode D3, one the 4th diode D4, a two-way thyristor (TRIAC) 8, a controller 81 and a capacitor C.
This controller 81 connects second end 72 of second sense wire 7, be provided with the 6th node P6 and first node P1 between second end 72 of controller 81 and second sense wire 7, second end, 52 couplings the 6th node P6 of first sense wire 5, and this capacitor C coupling first node P1, to form resistance-capacitance (RC) circuit with first, second sense wire 5,7.In addition, this controller 81 comprises trigger circuit 82, and these trigger circuit 82 connect the gate of bidirectional thyristor 8.
Whereby, as shown in Figure 2, when general normal heating, controller 81 sends the signal of certain intervals with control triggering electric circuit 82, trigger bidirectional thyristor 8 with trigger circuit 82 discontinuity again, make alternating current pass through the first diode D1 and the second diode D2 with two half-wave states, and because the first diode D1, the reverse configuration of the second diode D2 and the 3rd diode D3, the reverse configuration of the 4th diode D4, can allow the positive half cycle of alternating current pass through first sense wire 5 and second heater wire 6, the negative half period of alternating current allows first by first heater wire 4 and second sense wire 7, second heater wire 4,6 heat.
When first, second heater wire 4,6 temperature rises respectively, and make first, second sense wire 5, when 7 temperature rises respectively, because first, second sense wire 5,7 with the formed RC circuit of capacitor C, namely can form phase shift as shown in Figure 3, wherein, when first, second sense wire 5, when 7 temperature is identical, its the positive half cycle that produces respectively identical with the phase-shift phase of negative half period, when first, second sense wire 5,7 temperature is not simultaneously, the phase-shift phase of positive half cycle and negative half period is inequality, and because the phase-shift phase of positive half cycle and negative half period is inequality, can learn first respectively, second heater wire 4,6 temperature.
Temperature rising when first heater wire 4, and the phase-shift phase that allows controller 81 measure according to first node P1 is when reaching preset value, and controller 81 namely can be controlled bidirectional thyristor 8, makes it can not trigger negative half period, thus, can allow first heater wire 4 stop heating.And rise when the temperature of second heater wire 6, and the phase-shift phase that allows controller 81 measure according to first node P1 is when reaching preset value, controller 81 namely can be controlled bidirectional thyristor 8, makes it can not trigger positive half cycle, continues heating to stop second heater wire 6.
Therefore, the present invention has following advantage:
1, the present invention's positive half cycle and the negative half period that can control alternating current is conducting or interruption status respectively, to control the heating-up temperature of two heater wires respectively, therefore, can allow the user use two electro-heat equipments at the same time or separately according to actual needs, quite has elasticity.
2, the present invention can control the heating-up temperature of two heater wires in the electro-heat equipment with a bidirectional thyristor respectively, therefore, can effectively simplify element, to save manufacturing cost.
In sum, according to the content that above discloses, the present invention really can reach the intended purposes of invention, provide a kind of and can not only control two electro-heat equipments respectively, use with convenient, and can make the composition of element simple, to save the temperature-adjusting circuit of controlling two electro-heat equipments of manufacturing cost, have the value of utilizing on the industry.
Just the above only is preferred embodiment of the present invention, when not limiting the scope of the present invention with this; Therefore, allly change and modify according to the present patent application claim and the simple equivalent done of creation description, all should still belong in the scope that patent of the present invention contains.
Claims (5)
1. the temperature-adjusting circuit that can control two electro-heat equipments, it is characterized in that, these two electro-heat equipments comprise first electro-heat equipment and second electro-heat equipment, be provided with first heater wire and first sense wire in this first electro-heat equipment, be provided with second heater wire and second sense wire in this second electro-heat equipment, first heater wire is in parallel with second heater wire, first sense wire is in parallel with second sense wire, and first, first end and first of second heater wire, first end of second sense wire connects a polarity of AC power simultaneously, and this temperature-adjusting circuit comprises:
A bidirectional thyristor, its first end connects second end of first, second heater wire, and second end of bidirectional thyristor connects another polarity of AC power;
A controller, second end that connects first sense wire, second sense wire, be provided with a first node between second end of this controller and first sense wire, second sense wire, and this controller comprises trigger circuit, these trigger circuit connect the gate of bidirectional thyristor, for controlling bidirectional thyristor so that alternating current is two half-waves or the conducting of a half-wave mode;
An electric capacity, the coupling first node;
First diode, its first end connects first end of first sense wire;
Second diode, its first end connects first end of second sense wire, and first end of this second diode is opposite with the polarity of first end of this first diode;
The 3rd diode, its second end connects second end of first heater wire; And the 4th diode, its second end connects second end of second heater wire, and second end of the 4th diode is opposite with the polarity of second end of the 3rd diode.
2. the temperature-adjusting circuit of controlling two electro-heat equipments as claimed in claim 1 is characterized in that, this first sense wire is wherein a kind of of positive temperature coefficient element or negative temperature coefficient.
3. the temperature-adjusting circuit of controlling two electro-heat equipments as claimed in claim 1 is characterized in that, first end of this first diode is anodal, and first end of this second diode is negative pole; Second end of the 3rd diode is anodal, and second end of the 4th diode is negative pole.
4. as claim 1, the 2 or 3 described temperature-adjusting circuits of controlling two electro-heat equipments, it is characterized in that, be provided with a Section Point, the 3rd node and the 4th node between the polarity of first end of this second heater wire and AC power, second end coupling Section Point of this first diode, first end of this first heater wire the 3rd node that is coupled, second end of this second diode the 4th node that is coupled, and be provided with the 6th node between second end of second sense wire and the first node, second end of this first sense wire the 6th node that is coupled.
5. the temperature-adjusting circuit of controlling two electro-heat equipments as claimed in claim 4 is characterized in that, is provided with the 5th node between the 4th diode and the switch, first end of the 3rd diode the 5th node that is coupled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100528263A CN103294082A (en) | 2012-03-02 | 2012-03-02 | Temperature control circuit capable of controlling two heating devices |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100528263A CN103294082A (en) | 2012-03-02 | 2012-03-02 | Temperature control circuit capable of controlling two heating devices |
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| CN103294082A true CN103294082A (en) | 2013-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012100528263A Pending CN103294082A (en) | 2012-03-02 | 2012-03-02 | Temperature control circuit capable of controlling two heating devices |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103841674A (en) * | 2014-01-17 | 2014-06-04 | 黄焕珠 | Energy saving heating tube or plate of alternating current heating effect |
| CN107006073A (en) * | 2014-10-27 | 2017-08-01 | Iee国际电子工程股份公司 | The heating element heater for the dual-heated level that is self-regulated |
| CN108834233A (en) * | 2018-04-16 | 2018-11-16 | 上思县东岽电子科技有限责任公司 | A kind of constant temperature energy-saving automatic control device of electric oven |
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| JP2004119510A (en) * | 2002-09-24 | 2004-04-15 | Tokyo Electron Ltd | Heat treating apparatus |
| TW200803591A (en) * | 2006-06-14 | 2008-01-01 | Wang Ching Chuan | Method and circuit for preventing heating device from overheating |
| CN201097239Y (en) * | 2007-10-18 | 2008-08-06 | 张隆皇 | Heating control device with dual-core heating line |
| CN101592962A (en) * | 2009-05-06 | 2009-12-02 | 宁波锦春电器有限公司 | A kind of temperature control equipment of PTC/NTC electric heating element |
| CN201876748U (en) * | 2010-11-10 | 2011-06-22 | 陈子杨 | Electric blanket temperature controller manufactured with time base circuit |
| US20110204040A1 (en) * | 2010-02-24 | 2011-08-25 | Ching-Chuan Wang | Temperature-control circuit of a heating line and a temperature-control method thereof |
-
2012
- 2012-03-02 CN CN2012100528263A patent/CN103294082A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004119510A (en) * | 2002-09-24 | 2004-04-15 | Tokyo Electron Ltd | Heat treating apparatus |
| TW200803591A (en) * | 2006-06-14 | 2008-01-01 | Wang Ching Chuan | Method and circuit for preventing heating device from overheating |
| CN201097239Y (en) * | 2007-10-18 | 2008-08-06 | 张隆皇 | Heating control device with dual-core heating line |
| CN101592962A (en) * | 2009-05-06 | 2009-12-02 | 宁波锦春电器有限公司 | A kind of temperature control equipment of PTC/NTC electric heating element |
| US20110204040A1 (en) * | 2010-02-24 | 2011-08-25 | Ching-Chuan Wang | Temperature-control circuit of a heating line and a temperature-control method thereof |
| TW201129889A (en) * | 2010-02-24 | 2011-09-01 | Ching-Chuan Wang | Temperature-control circuit of a heating line and a temperature-control method thereof |
| CN201876748U (en) * | 2010-11-10 | 2011-06-22 | 陈子杨 | Electric blanket temperature controller manufactured with time base circuit |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103841674A (en) * | 2014-01-17 | 2014-06-04 | 黄焕珠 | Energy saving heating tube or plate of alternating current heating effect |
| CN107006073A (en) * | 2014-10-27 | 2017-08-01 | Iee国际电子工程股份公司 | The heating element heater for the dual-heated level that is self-regulated |
| CN108834233A (en) * | 2018-04-16 | 2018-11-16 | 上思县东岽电子科技有限责任公司 | A kind of constant temperature energy-saving automatic control device of electric oven |
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Owner name: FANYU JIANKANG TECHNOLOGY CAREER CO., LTD. Free format text: FORMER OWNER: WANG QINGCHUAN Effective date: 20140605 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20140605 Address after: Chinese Taiwan New Taipei City Applicant after: FANYU HEALTH TECHNOLOGY GROUP CO., LTD. Address before: Taiwan, Keelung, China Applicant before: Wang Qingchuan |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20130911 |