CN201839455U - Fast warming device - Google Patents
Fast warming device Download PDFInfo
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- CN201839455U CN201839455U CN2010205547021U CN201020554702U CN201839455U CN 201839455 U CN201839455 U CN 201839455U CN 2010205547021 U CN2010205547021 U CN 2010205547021U CN 201020554702 U CN201020554702 U CN 201020554702U CN 201839455 U CN201839455 U CN 201839455U
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Abstract
The utility model relates to a fast warming device, which comprises a splint, a metal ceramic heating element, a sampling resistor, a two-way controlled silicon, a control chip, a key unit and an auxiliary circuit, wherein the splint is used as the heat load; the metal ceramic heating element is arranged in the splint; the auxiliary circuit is connected with the control chip; the sampling resistor is used for detecting the voltage of the heating element to obtain a sampling voltage; the other path of the sampling resistor is used for detecting the input voltage of a mains supply; the control chip is used for comparing the sampling voltage and the input voltage and converting the sampling voltage into the actual temperature value of the heating element; the control chip can control the conducting of the two-way controlled silicon according to the temperature variation rate of the heating element and the difference of the actual temperature value and the preset temperature value, so as to adjust the heating element to heat and achieve the purposes of fast and accurate warming.
Description
Technical field
The utility model relates to a kind of heat riser, particularly a kind of device for quickly elevating temperature.
Background technology
Because the modern pursues time and efficient, the technology of being rapidly heated is widely used, particularly in the heating process of the heater of hair straightener in professional salon, curler.Yet the temperature of a common heater of hair straightener from starting shooting and can using needs to wait for the time more than 1 minute at least.Some manufacturer blindly promotes programming rate in order to contend for markets, in case but can't solve the control circuit that is rapidly heated and lost efficacy and cause melten gel to fall serious accidents such as clamping plate.
Chinese patent ZL200720120927.4 discloses the controlled heater circuit of the many temperature shelves of a kind of pair of voltage, it measures temperature with transducer, heater separates with transducer, the sensitivity problem that exists because of transducer itself, adding between transducer and the heater has heat transfer process, causes sensor signal to delay time than actual temperature, so can't obtain fast reaction and precisely control with this scheme in the control that is rapidly heated, programming rate is fast more to cause temperature fluctuation big easily, and temperature overshot is big.
Summary of the invention
The purpose of this utility model is to provide a kind of heat riser, and higher temperature can rise within a short period of time.
The utility model device for quickly elevating temperature comprises the clamping plate as heat load, be loaded on the cermet heater in the described clamping plate, sampling resistor, bidirectional triode thyristor, control chip and the push-button unit that links to each other with control chip, sampling resistor is used to detect the voltage on the heater, obtain a sampled voltage, after the push-button unit start, control chip compares sampled voltage and input voltage, and be converted to the actual temperature value of heater, control chip is according to the rate temperature change of heater, and the difference of described actual temperature value and preset temperature value controls the conducting of bidirectional triode thyristor, to regulate the heating of heater.
Preferably, described device for quickly elevating temperature also comprises AD conversion unit, is used for converting sampled voltage and input voltage to digital signal.
Preferably, described device for quickly elevating temperature also comprises led display unit or LCD display unit, and the control that it is subjected to the difference of described actual temperature value and preset temperature value is used to heat up, the indication of cooling, constant temperature.
Preferably, described device for quickly elevating temperature also comprises the over-temperature protection unit, and it links to each other with described heater.
Preferably, described control chip comprises register, after being used for starting shooting, preserves switching on and shutting down setting, preset temperature and temperature sampling time.
Preferably, described control chip comprises the voltage signal arithmetic element, is used for the ratio F and the reference value of input voltage and sampled voltage are compared, and is converted to the actual measurement temperature value A.
Preferably, described control chip comprises the temperature operation processing unit, is used for the actual measurement temperature value A of front and back double sampling is asked poor, obtains rate temperature change B divided by temperature sampling time H again, actual measurement temperature value A and preset temperature E are asked poor, obtain temperature difference C.
Preferably, described control chip comprises the load temperature control unit, and it is according to the rate temperature change B of heater, and temperature difference C makes next stage intensification preliminary treatment, control the conducting of bidirectional triode thyristor by the controllable silicon output control unit, to regulate the heating of heater.
Preferably, described control chip comprises timer counter shutdown processing unit, it detects the variable quantity of actual measurement temperature value A, if variable quantity at 2 degrees centigrade with interior fluctuation, start and enter idle state after timer conter reaches setting-up time, automatically temperature is reduced to half of design temperature, after counter is counted and is reached setting-up time, if detect also in just shutdown automatically of idle state, if the actual measurement temperature value A descends above 2 degrees centigrade, the temperature that can automatic recovery set originally this moment, and remove the timing shutdown counting waits and advances timing behind the idle state once more.
The utility model device for quickly elevating temperature detects change in voltage on the cermet heater with sampling resistor, be converted to temperature value with input voltage after relatively, heater and transducer unite two into one in this scheme, can fast reaction and temperature precisely control, temperature does not have overshoot.Adopt the temperature preconditioning technique, according to the rate temperature change that detects heater, the clamping plate temperature is made judgement, again the follow-up heating process of heater is calculated, whether control heater then generates heat, it is precisely reached fast set temperature, have quick heating, fast a, temperature stabilization of rising again, accurate, safe and reliable characteristics.The function that device has automatic cooling and shuts down has automatically reduced energy consumption.
Description of drawings
Fig. 1 is the circuit module figure of the utility model device for quickly elevating temperature.
Fig. 2 is the main flow chart of the utility model device for quickly elevating temperature.
Fig. 3 is the external interrupt flow chart of the utility model device for quickly elevating temperature.
Fig. 4 is that flow chart is interrupted in the timing of the utility model device for quickly elevating temperature.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Please refer to Fig. 1; the utility model device for quickly elevating temperature is used for the heater of hair straightener that a pull head is sent out; it comprises the clamping plate (10) as heat load, is loaded on a MCH10 (cermet heater), a sampling resistor 11, one two-way controllable silicon 12, an over-temperature protection unit 13, a control chip 14 (single-chip microcomputer), a push-button unit 15 that links to each other with described control chip 14 and a LED (light-emitting diode) display unit 16, input voltage AD conversion unit 17, sampled voltage AD conversion unit 18 and controllable silicon output control unit 19 in the described clamping plate.
Described clamping plate are aluminium sheet type or conventional ceramic type clamping plate.Described MCH10 self has the R/T ptc characteristics, and the resistance value of self also raises when temperature raises.Sampling resistor 11 is used to detect the voltage on the MCH10, obtains a sampled voltage.Control chip 14 is after starting shooting by push-button unit 15, sampled voltage and input voltage (civil power) are compared, and be converted to the actual temperature value of MCH10, control chip 14 is according to the rate temperature change of MCH10, and the difference of a described actual temperature value and a preset temperature value carries out computing, makes next stage intensification preliminary treatment, controls the conducting of bidirectional triode thyristor 12 by controllable silicon output control unit 19, to regulate the heating of MCH10, make the clamping plate temperature quick and precisely reach predetermined temperature.Input voltage AD conversion unit 17 is used for converting input voltage to digital signal, and sampled voltage AD conversion unit 18 is used for converting sampled voltage to digital signal.Input voltage AD conversion unit 17, sampled voltage AD conversion unit 18 and controllable silicon output control unit 19 also can be integrated in the control chip 14.Over-temperature protection unit 13 links to each other with MCH10, disconnects when MCH10 exceeds preset temperature value, reaches the purpose of protective circuit.Led display unit 16 is subjected to the control of the difference of described actual temperature value and preset temperature value, is used to heat up, the indication of cooling, constant temperature.Led display unit 16 also can be replaced by LCD (LCD) display unit.
With reference to figure 2, the main flow of device for quickly elevating temperature comprises:
S1, power-up initializing are provided with each RAM (memory register at random) state, and control chip 14 external interrupt (interrupt signal derives from the rising or the trailing edge of civil power crossover point signal) are set;
S2, time of implementation counting wait for that every counting duration reaches the step of carrying out a back after 1 millisecond;
Whether S3, call key scan, detecting has related key to press, if there is button to press, (switching on and shutting down setting, preset temperature E, temperature sampling time H) writes RAM with data value;
S4, the setting of detection start and close if off-mode is provided with relevant RAM state, are returned S2, if open state is just down carried out;
S5, regularly interruption, the voltage signal arithmetic element of control chip 14 is carried out the ratio F that input civil power and sampled voltage are obtained in computing;
Ratio F and reference value that the voltage signal arithmetic element of S6, control chip 14 will be imported civil power and sampled voltage compare, and are converted to the actual measurement temperature value A;
The temperature operation processing unit of S7, control chip 14 asks poor with the actual measurement temperature value A of front and back double sampling, obtains rate temperature change B divided by temperature sampling time H again;
The temperature operation processing unit of S8, control chip 14 asks poor with actual measurement temperature value A and preset temperature E, obtain temperature difference C, obtain 4 kinds of states of heating work: 1, the leading portion state that is rapidly heated, excessive poised state when 2, reaching preset temperature soon, poised state when 3, reaching preset temperature, 4, reduce the cooling state when actual temperature is high behind the design temperature;
The load temperature control unit of S9, control chip 14 is according to above-mentioned various operating states, call rate temperature change B and temperature difference C and calculate output back segment MCH10 heating control data, make next stage intensification preliminary treatment control, make the clamping plate temperature reach preset temperature;
S10, export the control signal D of the MCH10 in next sampling period;
S11, the timer counter shutdown processing unit of control chip 14 detects the variable quantity of actual measurement temperature value A, if variable quantity at 2 degrees centigrade with interior fluctuation, start timer conter and reach setting-up time, after 10 minutes, enter idle state, automatically temperature is reduced to half of preset temperature, counter is counted and is reached setting-up time, after 30 minutes, if also in just automatically shutdown of idle state, if when user's pull head is sent out before shutdown, the A value will descend above 2 degrees centigrade, the temperature that can automatic recovery set originally this moment, and remove the timing shutdown counting waits and advances timing behind the idle state once more;
S12, remove to control led display unit 16 with temperature difference C, if MCH10 is in the temperature-rise period, the LED flicker is if MCH10 arrives preset temperature, LED Chang Liang;
S13, jump to S2.
Please refer to Fig. 3, the external interrupt flow process of device for quickly elevating temperature comprises:
S21, judgement civil power are that rising edge interrupts or trailing edge interrupts;
If S22 just trailing edge interrupts, open or close according to the negative half period of control signal D control bidirectional triode thyristor;
S23 opens or closes according to the positive half cycle of control signal D control silicon controlled if rising edge interrupts;
S24,4.5 milliseconds of timer conters of unlatching, and enter regularly interrupt step;
S25, close external interrupt, external interrupt is returned.
Please refer to Fig. 4, the timing of device for quickly elevating temperature is interrupted flow process and is comprised:
S31, input voltage analog-to-digital conversion passway is set opens 12 place values after carrying out analog/digital conversion and keeping conversion;
S32, sampled voltage analog-to-digital conversion passway is set opens 12 place values after carrying out analog/digital conversion and keeping conversion;
S33, convert the back timeing closing and interrupt and the interrupt timing counter, open external interrupt, regularly interrupt returning.
The utility model device for quickly elevating temperature detects change in voltage on the cermet heater MCH10 with sampling resistor 11, be converted to temperature value with input voltage after relatively, heater and transducer unite two into one in this scheme, can fast reaction and temperature precisely control, temperature does not have overshoot.Adopt the temperature preconditioning technique, according to the rate temperature change that detects MCH10, the clamping plate temperature is made judgement, again the follow-up heating process of MCH10 is calculated, whether control heater then generates heat, it is precisely reached fast set temperature, have quick heating (clamping plate heat up 20 seconds reach more than 200 degrees centigrade), fast a, temperature stabilization of rising again, accurate, safe and reliable characteristics.The function that device has automatic cooling and shuts down has automatically reduced energy consumption.Above content be in conjunction with concrete optimal technical scheme to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection range of the present utility model.
Claims (10)
1. device for quickly elevating temperature, it is characterized in that, described device for quickly elevating temperature comprises: the clamping plate as heat load, be loaded on the cermet heater in the described clamping plate, one sampling resistor, one two-way controllable silicon, one control chip and a push-button unit that links to each other with described control chip, sampling resistor is used to detect the voltage on the heater, obtain a sampled voltage, after the push-button unit start, control chip compares sampled voltage and input voltage, and be converted to the actual temperature value of heater, control chip is according to the rate temperature change of heater, and the difference of a described actual temperature value and a preset temperature value controls the conducting of bidirectional triode thyristor, to regulate the heating of heater.
2. device for quickly elevating temperature according to claim 1 also comprises an AD conversion unit, is used for converting sampled voltage and input voltage to digital signal.
3. device for quickly elevating temperature according to claim 1 is characterized in that described AD conversion unit is integrated in the described control chip.
4. device for quickly elevating temperature according to claim 1 also comprises a led display unit or LCD display unit, and the control that it is subjected to the difference of described actual temperature value and preset temperature value is used to heat up, the indication of cooling, constant temperature.
5. device for quickly elevating temperature according to claim 1 also comprises an over-temperature protection unit, and it links to each other with described heater.
6. device for quickly elevating temperature according to claim 1, described control chip comprises a register, after being used for starting shooting, preserves switching on and shutting down setting, preset temperature and temperature sampling time.
7. device for quickly elevating temperature according to claim 1, described control chip comprise a voltage signal arithmetic element, are used for the ratio F and the reference value of input voltage and sampled voltage are compared, and are converted to the actual measurement temperature value A.
8. device for quickly elevating temperature according to claim 7, described control chip comprises a temperature operation processing unit, be used for the actual measurement temperature value A of front and back double sampling is asked poor, obtain rate temperature change B divided by temperature sampling time H again, actual measurement temperature value A and preset temperature E are asked poor, obtain temperature difference C.
9. device for quickly elevating temperature according to claim 8, described control chip comprises a load temperature control unit, it is according to the rate temperature change B of heater, and temperature difference C makes next stage intensification preliminary treatment, control the conducting of bidirectional triode thyristor by the controllable silicon output control unit, to regulate the heating of heater.
10. device for quickly elevating temperature according to claim 9, described control chip comprises that one regularly counts the shutdown processing unit, it detects the variable quantity of actual measurement temperature value A, if variable quantity at 2 degrees centigrade with interior fluctuation, start and enter idle state after timer conter reaches setting-up time, automatically temperature is reduced to half of design temperature, after counter is counted and is reached setting-up time, if detect also in just shutdown automatically of idle state, if the actual measurement temperature value A descends above 2 degrees centigrade, the temperature that can automatic recovery set originally this moment, and remove the timing shutdown counting waits and advances timing behind the idle state once more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205547021U CN201839455U (en) | 2010-09-30 | 2010-09-30 | Fast warming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205547021U CN201839455U (en) | 2010-09-30 | 2010-09-30 | Fast warming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201839455U true CN201839455U (en) | 2011-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205547021U Expired - Fee Related CN201839455U (en) | 2010-09-30 | 2010-09-30 | Fast warming device |
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| Country | Link |
|---|---|
| CN (1) | CN201839455U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102006686A (en) * | 2010-09-30 | 2011-04-06 | 深圳市奋达电器有限公司 | Quick warming device and method |
-
2010
- 2010-09-30 CN CN2010205547021U patent/CN201839455U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102006686A (en) * | 2010-09-30 | 2011-04-06 | 深圳市奋达电器有限公司 | Quick warming device and method |
| CN102006686B (en) * | 2010-09-30 | 2013-01-23 | 深圳市奋达电器有限公司 | Quick warming device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20140930 |
|
| EXPY | Termination of patent right or utility model |