CN101893904A - Temperature control device and method of electric heating body - Google Patents
Temperature control device and method of electric heating body Download PDFInfo
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- CN101893904A CN101893904A CN2010102375615A CN201010237561A CN101893904A CN 101893904 A CN101893904 A CN 101893904A CN 2010102375615 A CN2010102375615 A CN 2010102375615A CN 201010237561 A CN201010237561 A CN 201010237561A CN 101893904 A CN101893904 A CN 101893904A
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Abstract
The invention relates to a temperature control device of an electric heating body, which comprises a control module, as well as a sampling module and a heating switch which are respectively connected with the control module, and the temperature control device is characterized in that the sampling module further comprises a heating current sampling unit and a heating voltage sampling unit.
Description
Technical field:
The present invention relates to the robot calculator and the communication technology, specifically a kind of attemperating unit of electric heating body and method.
Background technology:
Chinese patent application number is 200810038919.4 files, disclose a kind of positive temperature coefficient heating element temperature control method, but its method need be used the thermometric switch, and can not carry out thermometric when electric heating body heats.
Summary of the invention:
The attemperating unit and the method that the objective of the invention is to overcome the deficiency of prior art scheme and a kind of electric heating body is provided.
The present invention adopts following technical scheme: a kind of attemperating unit of electric heating body, comprise control module, comprise the sampling module and the heater switch that are connected with described control module respectively, it is characterized in that described sampling module also comprises heating current sampling unit and heating voltage sampling unit.
The attemperating unit of described a kind of electric heating body, it is characterized in that described heating current sampling unit comprises the current sampling resistor R0 of electric heating body resistance R T and series connection, described heating voltage sampling unit comprises the dropping resistor R1 that connects heating voltage and the divider resistance R2 of series connection.
The attemperating unit of described a kind of electric heating body is characterized in that described control module also comprises as lower device or function: the temperature-coefficient of electrical resistance value, the resistance value that preestablish temperature value and storage electric heating body; With closed heater switch of certain hour cycle (0.01S to 10S), and determine the temperature value of electric heating body according to the operation result of heating current that receives and heating voltage sampling value, when reaching set temperature value, the temperature value of electric heating body disconnects heater switch, so repeatedly.
Device or function declaration: the temperature-coefficient of electrical resistance that has stored electric heating body in advance; Under specified temp (for example 25 ℃), measure the resistance value and the storage of electric heating body in advance, specifically be that control module (containing 12 A/D functions) obtains heating voltage and heating current respectively by sampling module, basis again: electric heating body resistance value=heating voltage/heating current is further obtained the temperature value of electric heating body by resistance value; Constantly electric heating body is carried out heating current and heating voltage detection during heating work, determine the temperature value of electric heating body thus and realized temperature control with the relatively back control heater switch of predefined temperature value.
The attemperating unit of described a kind of electric heating body is characterized in that comprising that the temperature sampling of being made up of described RT, R0, R1, R2 detects electric raise.See Fig. 1, current sampling point I and voltage sampling point U are the output point of this temperature detection electric bridge, and when design temperature, resistance value satisfies RT=R0*R1/R2.
The attemperating unit of described a kind of electric heating body, it is characterized in that described control module also comprises following device or the function that is connected in order: with closed heater switch of certain hour cycle (0.01S to 10S), the trip temperature of going forward side by side detects, when RT is positive temperature coefficient, when the heating current sampling value, disconnect heater switch during less than the heating voltage sampling value, so repeatedly; Or with closed heater switch of certain hour cycle (0.01S to 10S), the trip temperature of going forward side by side detects, and disconnects heater switch during greater than the heating voltage sampling value when RT is negative temperature coefficient of resistance, when the heating current sampling value, so repeatedly.
Device or function declaration: when design temperature, each resistance value of temperature detection electric bridge satisfies RT=R0*R1/R2, and carries out heating and temperature control according to temperature detection electric bridge output signal polarity.
A kind of temperature control method of electric heating body, the attemperating unit of one electric heating body is provided, the attemperating unit of described electric heating body comprises control module, comprise the sampling module and the heater switch that are connected with described control module respectively again, described sampling module also comprises heating current sampling unit and heating voltage sampling unit, and its feature comprises the steps: also that in described control module described attemperating unit preestablishes temperature-coefficient of electrical resistance value, the resistance value of temperature value and storage electric heating body; With closed heater switch of certain hour cycle (0.01S to 10S), and determine the temperature value of electric heating body according to the operation result of heating current that receives and heating voltage sampling value, when reaching set temperature value, the temperature value of electric heating body disconnects heater switch, so repeatedly.
The present invention compared with prior art has following advantage and effect: 1. the electric heating temperature control of realizing no thermal sensing element; 2. the thermometric switch need be do not used, and continuous temperature measurement can be when electric heating body heats, carried out.
Description of drawings:
Fig. 1 is the attemperating unit structural representation of electric heating body;
Fig. 2 is a control module ad hoc sofeware program process flow diagram.
Embodiment:
See accompanying drawing 1, can set RT=500 Ω (in the time of 300 ℃, the resistance temperature of iron is 0.00651 in addition), R0=1 Ω, R1=100K Ω, R2=200 Ω.
The attemperating unit of described a kind of electric heating body is characterized in that described R1 or R2 are the variable resistors of adjusting the temperature of setting.
The attemperating unit of described a kind of electric heating body is characterized in that described heating current sampling and heating voltage sampling are the positive half-wave peak dot time of heating voltage constantly, and by the selected sampling of described control module constantly.
The attemperating unit of described a kind of electric heating body is characterized in that described cycle heat time heating time is 0.01S to 10S.Or described cycle heat time heating time is 0.1S.Or carry out the self-adaptation adjustment, promptly each heat time heating time in cycle, long then power-off time was short, otherwise then anti-.
A kind of attemperating unit of electric heating body, the software program flow process function of control module described in this explanation can be with embedded type CPUs (containing the A/D function), or realize with electronic circuit commonly used.The repertoire of control module also can use hardware (CPLD or FPGA) to realize.
The attemperating unit of said electric heating body comprises similar miscellaneous equipments such as automatic temperature-controlled electric soldering iron, electric heating felt, electric frying pan, electric furnace in this explanation.
Claims (10)
1. the attemperating unit of an electric heating body, comprise control module, comprise the sampling module and the heater switch that are connected with described control module respectively, described sampling module also comprises heating current sampling unit and heating voltage sampling unit, described heating current sampling unit comprises the current sampling resistor of electric heating body resistance and series connection, described heating voltage sampling unit comprises the dropping resistor that connects heating voltage and the divider resistance of series connection, preestablishes temperature value and stores temperature-coefficient of electrical resistance value, the resistance value of electric heating body; It is characterized in that described control module also comprises as lower device or function: with closed heater switch of cycle time, and determine the temperature value of electric heating body according to the operation result of heating current that receives and heating voltage sampling value, disconnect heater switch when the temperature value of electric heating body reaches set temperature value, so circulation repeatedly.
2. want the attemperating unit of 1 described a kind of electric heating body according to right, it is characterized in that comprising that the temperature sampling of being made up of the divider resistance of the current sampling resistor of described electric heating body resistance and series connection, the dropping resistor that is connected heating voltage and series connection detects electric raise.
3. want the attemperating unit of 2 described a kind of electric heating bodies according to right, it is characterized in that described control module also comprises as lower device or function: with closed heater switch of cycle time, the trip temperature of going forward side by side detects, the electric heating body temperature-coefficient of electrical resistance for just (bear) when value, when heating current sampling value little (greatly) disconnects heater switch during in the heating voltage sampling value, so circulate repeatedly.
4. want the attemperating unit of 2 or 3 described a kind of electric heating bodies according to right, it is characterized in that described dropping resistor or divider resistance are the variable resistors of adjusting the temperature of setting.
5. want the attemperating unit of 3 or 5 described a kind of electric heating bodies according to right, it is characterized in that control module also comprises the sampling of described heating current and the heating voltage sampling timing device in the positive half-wave peak dot time of heating voltage.
6. want the attemperating unit of 3 or 5 described a kind of electric heating bodies according to right, it is characterized in that described cycle heat time heating time is 0.01S to 10S.
7. the temperature control method of an electric heating body, the attemperating unit of one electric heating body is provided, the attemperating unit of described electric heating body comprises control module, comprise the sampling module and the heater switch that are connected with described control module respectively again, described sampling module also comprises heating current sampling unit and heating voltage sampling unit, described attemperating unit preestablishes temperature value and stores the temperature-coefficient of electrical resistance value of electric heating body, resistance value, its feature also comprises the steps: with closed heater switch of cycle time in described control module, and determine the temperature value of electric heating body according to the operation result of heating current that receives and heating voltage sampling value, disconnect heater switch when the temperature value of electric heating body reaches set temperature value, so circulation repeatedly.
8. want the temperature control method of 7 described a kind of electric heating bodies according to right, it is characterized in that described heating current sampling and heating voltage sampling are the positive half-wave peak dot time of heating voltage constantly.
9. want the temperature control method of 7 described a kind of electric heating bodies according to right, it is characterized in that the described time cycle is 0.01S to 10S.
10. want the attemperating unit of 8 described a kind of electric heating bodies according to right, it is characterized in that described cycle heat time heating time is 0.1S.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102375615A CN101893904A (en) | 2010-07-16 | 2010-07-16 | Temperature control device and method of electric heating body |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102375615A CN101893904A (en) | 2010-07-16 | 2010-07-16 | Temperature control device and method of electric heating body |
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| CN101893904A true CN101893904A (en) | 2010-11-24 |
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| CN2010102375615A Pending CN101893904A (en) | 2010-07-16 | 2010-07-16 | Temperature control device and method of electric heating body |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102298406A (en) * | 2011-08-24 | 2011-12-28 | 张克勇 | Electric heater and control device thereof |
| CN102436278A (en) * | 2011-08-24 | 2012-05-02 | 张克勇 | Electric heater and control device thereof |
| CN103972853A (en) * | 2013-02-05 | 2014-08-06 | 施耐德电器工业公司 | Safety protection device and safety protection method |
| CN108618206A (en) * | 2018-04-10 | 2018-10-09 | 绿烟实业（深圳）有限公司 | Smoking set equipment and method for measuring and controlling temp for the smoking set equipment |
| CN109375670A (en) * | 2018-08-30 | 2019-02-22 | 佛山市宇森医疗器械有限公司 | Closed loop thermal control system and closed loop thermal control method without temperature sensor |
| CN113686602A (en) * | 2021-08-13 | 2021-11-23 | 深圳市基克纳科技有限公司 | Heat-generating body test equipment |
| CN114838506A (en) * | 2022-05-06 | 2022-08-02 | 珠海格力电器股份有限公司 | Anti-freezing and anti-dry-burning device, water heater and control method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5464965A (en) * | 1993-04-20 | 1995-11-07 | Honeywell Inc. | Apparatus for controlling temperature of an element having a temperature variable resistance |
| CN2271788Y (en) * | 1996-09-18 | 1997-12-31 | 上海小绵羊电器总厂 | Constant temp controller of electrothermal blanket |
| JP2002270336A (en) * | 2001-03-07 | 2002-09-20 | Toto Ltd | Control device of ptc heater |
| CN2938675Y (en) * | 2006-08-10 | 2007-08-22 | 李木水 | Whole line temp. control electric heater |
| CN101303607A (en) * | 2008-06-13 | 2008-11-12 | 百利通电子(上海)有限公司 | Positive temperature coefficient heating element temperature control method |
| CN101559844A (en) * | 2008-04-18 | 2009-10-21 | 辽宁聚龙金融设备股份有限公司 | Temperature control device of rapid-heating iron |
-
2010
- 2010-07-16 CN CN2010102375615A patent/CN101893904A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5464965A (en) * | 1993-04-20 | 1995-11-07 | Honeywell Inc. | Apparatus for controlling temperature of an element having a temperature variable resistance |
| CN2271788Y (en) * | 1996-09-18 | 1997-12-31 | 上海小绵羊电器总厂 | Constant temp controller of electrothermal blanket |
| JP2002270336A (en) * | 2001-03-07 | 2002-09-20 | Toto Ltd | Control device of ptc heater |
| CN2938675Y (en) * | 2006-08-10 | 2007-08-22 | 李木水 | Whole line temp. control electric heater |
| CN101559844A (en) * | 2008-04-18 | 2009-10-21 | 辽宁聚龙金融设备股份有限公司 | Temperature control device of rapid-heating iron |
| CN101303607A (en) * | 2008-06-13 | 2008-11-12 | 百利通电子(上海)有限公司 | Positive temperature coefficient heating element temperature control method |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102298406A (en) * | 2011-08-24 | 2011-12-28 | 张克勇 | Electric heater and control device thereof |
| CN102436278A (en) * | 2011-08-24 | 2012-05-02 | 张克勇 | Electric heater and control device thereof |
| CN103972853A (en) * | 2013-02-05 | 2014-08-06 | 施耐德电器工业公司 | Safety protection device and safety protection method |
| CN103972853B (en) * | 2013-02-05 | 2017-03-01 | 施耐德电器工业公司 | Safety protection device and a method |
| CN108618206A (en) * | 2018-04-10 | 2018-10-09 | 绿烟实业（深圳）有限公司 | Smoking set equipment and method for measuring and controlling temp for the smoking set equipment |
| CN109375670A (en) * | 2018-08-30 | 2019-02-22 | 佛山市宇森医疗器械有限公司 | Closed loop thermal control system and closed loop thermal control method without temperature sensor |
| CN113686602A (en) * | 2021-08-13 | 2021-11-23 | 深圳市基克纳科技有限公司 | Heat-generating body test equipment |
| CN114838506A (en) * | 2022-05-06 | 2022-08-02 | 珠海格力电器股份有限公司 | Anti-freezing and anti-dry-burning device, water heater and control method thereof |
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Application publication date: 20101124 |