CN1743979A - Electric-heating kettle thermal-insulation control method - Google Patents
Electric-heating kettle thermal-insulation control method Download PDFInfo
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- CN1743979A CN1743979A CN 200510037527 CN200510037527A CN1743979A CN 1743979 A CN1743979 A CN 1743979A CN 200510037527 CN200510037527 CN 200510037527 CN 200510037527 A CN200510037527 A CN 200510037527A CN 1743979 A CN1743979 A CN 1743979A
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Abstract
This invention discloses a thermo-insulation control method for electric heating kettle, which contains 1, setting temperature sensor in kettle, microprocessor and control circuit, 2, the temperature real time detecting temperature of water in kettle and sending the detected signal to microprocessor, 3, when temperature of water is lower than the preset lower limit, the microprocessor sending heating signal to control circuit, 4, when temperature higher or equal to preset upper limit, microprocessor sending stop heating signal to control circuit.
Description
Technical field
The present invention relates to a kind of control method of electric kettle, particularly a kind of electric-heating kettle thermal-insulation control method.
Background technology
Electric kettle give people the live and work band convenience, when boiled water is not in time drunk up and continued to be placed on a period of time in the electric kettle, temperature can reduce, effect is drunk in influence, the electric-heating kettle thermal-insulation control of prior art is to adopt the temperature sensor measurement water temperature, and when the water temperature in the electric kettle was low, control circuit was connected heating power supply, water in the heating electric kettle turn-offs heating power supply after water temperature raises.The deficiency that this method exists is: the big control of temperature rise process is inaccurate, and another kind of method is when being in the heat insulation function state, adopts the PTC heater element, the miniwatt heating, and the method also exists the inaccurate weak point of temperature control.
Summary of the invention
The purpose of this invention is to provide a kind of electric-heating kettle thermal-insulation control method, the technical matters that solve is water temperature and the rate of temperature change of accurately judging in the electric kettle, regulates heat time heating time, simulation control heating power.
The present invention is by the following technical solutions: a kind of electric-heating kettle thermal-insulation control method may further comprise the steps: one, temperature sensor, microprocessor and control circuit are set in electric kettle; Two, temperature sensor detects the temperature of water in the electric kettle in real time, and detection signal is delivered to microprocessor; Three, when water temperature is lower than the lower limit of setting, microprocessor sends the signal of heating to control circuit; Four, when water temperature is greater than or equal to the higher limit of setting, microprocessor sends the signal that stops to heat to control circuit.
After microprocessor of the present invention sends the signal of heating to control circuit, actual water temperature and predefined set water temperature are compared, greater than the time microprocessor send the signal that stops to heat to control circuit; Actual water temperature compare with set water temperature less than the time, microprocessor accounting temperature rate of change compares itself and predefined design temperature rate of change, greater than the time microprocessor send the signal that stops to heat to control circuit; The accounting temperature rate of change compare with the design temperature rate of change less than the time, microprocessor stops the signal to heat after control circuit sends time-delay.
Microprocessor of the present invention compares actual water temperature and predefined minimum set water temperature, greater than the time continue to compare with high one grade of set water temperature, until the highest set water temperature; Actual water temperature compare with current shelves set water temperature less than the time, microprocessor calculates the rate of temperature change of this moment.
Behind the microprocessor accounting temperature rate of change of the present invention with the regulated quantity setting value adduction storage mutually of current shelves, then this storing value and the highest adjustment fiducial value are compared, less than the time continue with low one grade adjust fiducial value and compare, until minimum adjustment fiducial value; Storing value with adjust fiducial value compare greater than the time, obtain the default heat time heating time of in one-period, matching with current adjustment fiducial value.
Set water temperature of the present invention divides five grades of settings, and the regulated quantity setting value is divided the fourth gear setting, adjusts fiducial value and divides six grades of settings, divides seven grades of settings default heat time heating time.
Set water temperature class of the present invention progressively increases progressively from one to five, and regulated quantity setting value class progressively increases progressively from one to four, adjusts the fiducial value class and progressively increases progressively from one to six, and heat time heating time, class progressively increased progressively to six from zero.
The actual water temperature of the present invention and first set water temperature compare less than the time memory stores value be zero, the actual water temperature and second set water temperature compare less than the time, microprocessor calculates the rate of temperature change and the adduction storage mutually of the first regulated quantity setting value of this moment, actual water temperature and the 3rd set water temperature compare less than the time, microprocessor calculates the rate of temperature change and the adduction storage mutually of the second regulated quantity setting value of this moment, actual water temperature and the 4th set water temperature compare less than the time, microprocessor calculates the rate of temperature change and the adduction storage mutually of the 3rd regulated quantity setting value of this moment, actual water temperature and the 5th set water temperature compare less than the time, the rate of temperature change that microprocessor calculates this moment and the 4th regulated quantity setting value adduction are mutually stored; Storing value and the 6th adjust fiducial value compare greater than the time, be zero heat time heating time, storing value and the 5th adjust fiducial value compare greater than the time, be the first default heat time heating time heat time heating time, storing value and the 4th adjust fiducial value compare greater than the time, be the second default heat time heating time heat time heating time, storing value and the 3rd adjust fiducial value compare greater than the time, be the 3rd default heat time heating time heat time heating time, storing value and second adjust fiducial value compare greater than the time, be the 4th default heat time heating time heat time heating time, storing value and first adjust fiducial value compare greater than the time, be the 5th default heat time heating time heat time heating time, storing value and first adjust fiducial value compare less than the time, be the 6th to preset heat time heating time heat time heating time.
When control circuit of the present invention receives the signal of microprocessor, switch on or off heating power supply.
Be set in the microprocessor of the present invention the longest heat time heating time in this cycle,, send the signal that stops to heat to control circuit when heat time heating time during more than or equal to the longest heat time heating time; When heat time heating time during less than the longest heat time heating time the microprocessor judges cycle count whether expire one-period, when reaching full cycle, accounting temperature rate of change, and store current water temperature, to after zero clearing heat time heating time again with current water temperature and the comparison of first set water temperature.
Compare current water temperature and insulation set water temperature less than in this cycle during the longest heat time heating time heat time heating time in of the present invention cycle, greater than the time send the signal that stops to heat to control circuit; Current water temperature and insulation set water temperature compare less than the time continue heat time heating time in the cycle and the longest heat time heating time are compared.
The present invention compared with prior art, adopt microprocessor that actual water temperature and set water temperature are compared, the accounting temperature rate of change is according to actual water temperature and rate of temperature change again, determine the insulation heat time heating time of electric kettle heating power supply, realize accurately controlling heat time heating time, save the energy, and improved the controlling level of electric kettle.
Description of drawings
Fig. 1 is an electric-heating kettle thermal-insulation control method embodiment block diagram of the present invention.
Fig. 2-the 1st, electric-heating kettle thermal-insulation control method embodiment process flow diagram of the present invention.
Fig. 2-the 2nd, the continuous figure of Fig. 2-1.
Embodiment
Below in conjunction with drawings and Examples the present invention is described in further detail.Studies show that, water is in insulation heating process, if heat time heating time and the temperature at heating initial stage, the relation that rate of temperature change is arranged to negative correlation, then can improve the insulation precision, electric-heating kettle thermal-insulation control method of the present invention, as shown in Figure 1, may further comprise the steps: one, temperature sensor, microprocessor and control circuit are set in electric kettle; Two, temperature sensor detects the temperature of water in the electric kettle in real time, and detection signal is delivered to microprocessor; Three, when water temperature is lower than the lower limit of setting, microprocessor sends the signal of heating to control circuit, when control circuit receives the signal of microprocessor, connects heating power supply; Four, when water temperature is greater than or equal to the higher limit of setting, microprocessor sends the signal that stops to heat to control circuit, when control circuit receives the signal of microprocessor, cuts off heating power supply.
Shown in Fig. 2-1 and Fig. 2-2, microprocessor at first judges whether to enter the heating period, if not whether then judge water temperature greater than predetermined value, if less than the signal that then sends heating to control circuit, the energized heating.
Microprocessor compares the set water temperature of actual water temperature with stepping setting in advance, at first actual water temperature and predefined minimum set water temperature are compared, greater than the time continue to compare with high one grade of set water temperature, until the highest set water temperature, still greater than the time then microprocessor send the signal that stops to heat to control circuit, set water temperature divides five grades of settings, and numerical value progressively increases progressively for from one to five grade; Actual water temperature compare with current shelves set water temperature less than the time, microprocessor calculates behind the rate of temperature change of this moment the regulated quantity setting value adduction storage mutually with current shelves, the regulated quantity setting value is divided the fourth gear setting, numerical value progressively increases progressively from one to fourth gear, then storing value and the highest adjustment fiducial value are compared, less than the time continue with low one grade adjust fiducial value and compare, until minimum adjustment fiducial value, adjust fiducial value and divide six grades of settings, numerical value progressively successively decreases for from six to one grades; Storing value with adjust fiducial value compare greater than the time, get and set heat time heating time in current shelves are adjusted the one-period that fiducial value matches, divide seven grades of settings heat time heating time, the time progressively increases progressively from zero to seven grades.
The actual water temperature and first set water temperature compare less than the time memory stores value be zero, the actual water temperature and second set water temperature compare less than the time, microprocessor calculates the rate of temperature change and the adduction storage mutually of the first regulated quantity setting value of this moment, actual water temperature and the 3rd set water temperature compare less than the time, microprocessor calculates the rate of temperature change and the adduction storage mutually of the second regulated quantity setting value of this moment, actual water temperature and the 4th set water temperature compare less than the time, microprocessor calculates the rate of temperature change and the adduction storage mutually of the 3rd regulated quantity setting value of this moment, actual water temperature and the 5th set water temperature compare less than the time, the rate of temperature change that microprocessor calculates this moment and the 4th regulated quantity setting value adduction are mutually stored; Storing value and the 6th adjust fiducial value compare greater than the time, be zero heat time heating time, storing value and the 5th adjust fiducial value compare greater than the time, be the first default heat time heating time default heat time heating time, storing value and the 4th adjust fiducial value compare greater than the time, be the second default heat time heating time default heat time heating time, storing value and the 3rd adjust fiducial value compare greater than the time, be the 3rd default heat time heating time default heat time heating time, storing value and second adjust fiducial value compare greater than the time, be the 4th default heat time heating time default heat time heating time, storing value and first adjust fiducial value compare greater than the time, be the 5th default heat time heating time default heat time heating time, storing value and first adjust fiducial value compare less than the time, be the 6th to preset heat time heating time default heat time heating time.
The purpose that stepping is provided with set water temperature is for the temperature at different gears, get different regulated quantity setting values, the high more regulated quantity setting value of temperature is big more, memory value is big more, default heat time heating time is short more, embodied the relation of default heat time heating time and temperature negative correlation, be convenient to compare with same group of adjustment fiducial value.Also can adopt actual water temperature to compare with set water temperature, less than the time, microprocessor accounting temperature rate of change, itself and predefined design temperature rate of change are compared, greater than the time microprocessor send the signal that stops to heat to control circuit, the accounting temperature rate of change compare with the design temperature rate of change less than the time, microprocessor stops the signal to heat after control circuit sends time-delay.When heat time heating time during more than or equal to this default heat time heating time, microprocessor sends the signal that stops to heat to control circuit; When heat time heating time during less than default heat time heating time the microprocessor judges cycle count whether expire one-period, when reaching full cycle, accounting temperature rate of change, and store current water temperature, to after zero clearing heat time heating time again with current water temperature and the comparison of first set water temperature; When the cycle timing does not reach full one-period, current water temperature and the 5th set water temperature are compared, greater than the time send the signal that stops to heat to control circuit, current water temperature and the 5th set water temperature compare less than the time continue heat time heating time in the cycle and default heat time heating time are compared.
Claims (10)
1. an electric-heating kettle thermal-insulation control method may further comprise the steps: one, temperature sensor, microprocessor and control circuit are set in electric kettle; Two, temperature sensor detects the temperature of water in the electric kettle in real time, and detection signal is delivered to microprocessor; Three, when water temperature is lower than the lower limit of setting, microprocessor sends the signal of heating to control circuit; Four, when water temperature is greater than or equal to the higher limit of setting, microprocessor sends the signal that stops to heat to control circuit.
2. electric-heating kettle thermal-insulation control method according to claim 1, it is characterized in that: described after microprocessor sends the signal of heating to control circuit, actual water temperature and predefined set water temperature are compared, greater than the time microprocessor send the signal that stops to heat to control circuit; Actual water temperature compare with set water temperature less than the time, microprocessor accounting temperature rate of change compares itself and predefined design temperature rate of change, greater than the time microprocessor send the signal that stops to heat to control circuit; The accounting temperature rate of change compare with the design temperature rate of change less than the time, microprocessor stops the signal to heat after control circuit sends time-delay.
3. electric-heating kettle thermal-insulation control method according to claim 2, it is characterized in that: described microprocessor compares actual water temperature and predefined minimum set water temperature, greater than the time continue to compare with high one grade of set water temperature, until the highest set water temperature; Actual water temperature compare with current shelves set water temperature less than the time, microprocessor calculates the rate of temperature change of this moment.
4. electric-heating kettle thermal-insulation control method according to claim 3, it is characterized in that: behind the described microprocessor accounting temperature rate of change with the regulated quantity setting value adduction storage mutually of current shelves, then this storing value and the highest adjustment fiducial value are compared, less than the time continue with low one grade adjust fiducial value and compare, until minimum adjustment fiducial value; Storing value with adjust fiducial value compare greater than the time, obtain the default heat time heating time of in one-period, matching with current adjustment fiducial value.
5. electric-heating kettle thermal-insulation control method according to claim 4 is characterized in that: described set water temperature divides five grades of settings, and the regulated quantity setting value is divided the fourth gear setting, adjusts fiducial value and divides six grades of settings, divides seven grades of settings default heat time heating time.
6. electric-heating kettle thermal-insulation control method according to claim 5, it is characterized in that: described set water temperature class progressively increases progressively from one to five, regulated quantity setting value class progressively increases progressively from one to four, adjust the fiducial value class and progressively increase progressively from one to six, heat time heating time, class progressively increased progressively to six from zero.
7. electric-heating kettle thermal-insulation control method according to claim 6, it is characterized in that: the described actual water temperature and first set water temperature compare less than the time memory stores value be zero, the actual water temperature and second set water temperature compare less than the time, microprocessor calculates the rate of temperature change and the adduction storage mutually of the first regulated quantity setting value of this moment, actual water temperature and the 3rd set water temperature compare less than the time, microprocessor calculates the rate of temperature change and the adduction storage mutually of the second regulated quantity setting value of this moment, actual water temperature and the 4th set water temperature compare less than the time, microprocessor calculates the rate of temperature change and the adduction storage mutually of the 3rd regulated quantity setting value of this moment, actual water temperature and the 5th set water temperature compare less than the time, the rate of temperature change that microprocessor calculates this moment and the 4th regulated quantity setting value adduction are mutually stored; Storing value and the 6th adjust fiducial value compare greater than the time, be zero heat time heating time, storing value and the 5th adjust fiducial value compare greater than the time, be the first default heat time heating time heat time heating time, storing value and the 4th adjust fiducial value compare greater than the time, be the second default heat time heating time heat time heating time, storing value and the 3rd adjust fiducial value compare greater than the time, be the 3rd default heat time heating time heat time heating time, storing value and second adjust fiducial value compare greater than the time, be the 4th default heat time heating time heat time heating time, storing value and first adjust fiducial value compare greater than the time, be the 5th default heat time heating time heat time heating time, storing value and first adjust fiducial value compare less than the time, be the 6th to preset heat time heating time heat time heating time.
8. according to arbitrary described electric-heating kettle thermal-insulation control method in the claim 1 to 7, it is characterized in that: when described control circuit receives the signal of microprocessor, switch on or off heating power supply.
9. electric-heating kettle thermal-insulation control method according to claim 8 is characterized in that: be set in the described microprocessor the longest heat time heating time in this cycle, when heat time heating time during more than or equal to the longest heat time heating time, send the signal that stops to heat to control circuit; When heat time heating time during less than the longest heat time heating time the microprocessor judges cycle count whether expire one-period, when reaching full cycle, accounting temperature rate of change, and store current water temperature, to after zero clearing heat time heating time again with current water temperature and the comparison of first set water temperature.
10. electric-heating kettle thermal-insulation control method according to claim 9, it is characterized in that: described when heat time heating time in this cycle less than in this cycle during the longest heat time heating time, current water temperature and insulation set water temperature are compared, greater than the time send the signal that stops to heat to control circuit; Current water temperature and insulation set water temperature compare less than the time continue heat time heating time in the cycle and the longest heat time heating time are compared.
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| CN 200510037527 CN1743979A (en) | 2005-09-21 | 2005-09-21 | Electric-heating kettle thermal-insulation control method |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102920315A (en) * | 2012-10-21 | 2013-02-13 | 安徽工程大学 | Intelligent dish steaming method capable of controlling temperature and humidity |
| CN101737955B (en) * | 2009-12-31 | 2013-07-24 | 深圳和而泰智能控制股份有限公司 | Water temperature control method and device |
| CN105425854A (en) * | 2015-12-20 | 2016-03-23 | 湖南科技大学 | Anti-ice heating control method of bridge cable |
| CN106439765A (en) * | 2016-09-30 | 2017-02-22 | 广东美的环境电器制造有限公司 | Steam generator, hanging iron and control method of steam generator |
| CN106580109A (en) * | 2016-12-20 | 2017-04-26 | 广州临广电气机械有限公司 | Intermittent heating method for coffee brewing |
| CN107884082A (en) * | 2016-09-30 | 2018-04-06 | 广东美的生活电器制造有限公司 | Process for temperature indication and device, heating vessel |
| CN108324115A (en) * | 2017-01-20 | 2018-07-27 | 佛山市顺德区美的电热电器制造有限公司 | The refrigeration control system and method and refrigeration cooking apparatus of a kind of cooking apparatus |
| CN108508931A (en) * | 2017-02-27 | 2018-09-07 | 浙江绍兴苏泊尔生活电器有限公司 | Electric kettle heat preservation control method and electric kettle |
| CN108552946A (en) * | 2018-06-04 | 2018-09-21 | 佛山市同鑫智能装备科技有限公司 | A kind of quick-heating energy-saving environmental protection pot |
| CN108828982A (en) * | 2018-05-30 | 2018-11-16 | 张健 | Intelligent table heating means based on image recognition |
| CN110051041A (en) * | 2018-01-19 | 2019-07-26 | 常州市派腾电子技术服务有限公司 | Output parameter control method and electronic cigarette |
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- 2005-09-21 CN CN 200510037527 patent/CN1743979A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101737955B (en) * | 2009-12-31 | 2013-07-24 | 深圳和而泰智能控制股份有限公司 | Water temperature control method and device |
| CN102920315A (en) * | 2012-10-21 | 2013-02-13 | 安徽工程大学 | Intelligent dish steaming method capable of controlling temperature and humidity |
| CN105425854A (en) * | 2015-12-20 | 2016-03-23 | 湖南科技大学 | Anti-ice heating control method of bridge cable |
| CN107884082B (en) * | 2016-09-30 | 2020-04-28 | 广东美的生活电器制造有限公司 | Temperature display method and device and liquid heating container |
| CN106439765A (en) * | 2016-09-30 | 2017-02-22 | 广东美的环境电器制造有限公司 | Steam generator, hanging iron and control method of steam generator |
| CN107884082A (en) * | 2016-09-30 | 2018-04-06 | 广东美的生活电器制造有限公司 | Process for temperature indication and device, heating vessel |
| CN106439765B (en) * | 2016-09-30 | 2020-07-28 | 广东美的环境电器制造有限公司 | Steam generator, garment steamer and control method of steam generator |
| CN106580109A (en) * | 2016-12-20 | 2017-04-26 | 广州临广电气机械有限公司 | Intermittent heating method for coffee brewing |
| CN108324115A (en) * | 2017-01-20 | 2018-07-27 | 佛山市顺德区美的电热电器制造有限公司 | The refrigeration control system and method and refrigeration cooking apparatus of a kind of cooking apparatus |
| CN108324115B (en) * | 2017-01-20 | 2021-04-02 | 佛山市顺德区美的电热电器制造有限公司 | Refrigeration control system and method of cooking appliance and refrigeration cooking appliance |
| CN108508931A (en) * | 2017-02-27 | 2018-09-07 | 浙江绍兴苏泊尔生活电器有限公司 | Electric kettle heat preservation control method and electric kettle |
| CN108508931B (en) * | 2017-02-27 | 2021-03-05 | 浙江绍兴苏泊尔生活电器有限公司 | Electric kettle heat preservation control method and electric kettle |
| CN110051041A (en) * | 2018-01-19 | 2019-07-26 | 常州市派腾电子技术服务有限公司 | Output parameter control method and electronic cigarette |
| CN108828982A (en) * | 2018-05-30 | 2018-11-16 | 张健 | Intelligent table heating means based on image recognition |
| CN108552946A (en) * | 2018-06-04 | 2018-09-21 | 佛山市同鑫智能装备科技有限公司 | A kind of quick-heating energy-saving environmental protection pot |
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