CN104007775A - Electrothermal equipment and voltage detection method - Google Patents

Electrothermal equipment and voltage detection method Download PDF

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Publication number
CN104007775A
CN104007775A CN201310059604.9A CN201310059604A CN104007775A CN 104007775 A CN104007775 A CN 104007775A CN 201310059604 A CN201310059604 A CN 201310059604A CN 104007775 A CN104007775 A CN 104007775A
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China
Prior art keywords
electric heating
heating appliance
voltage
well heater
temperature
Prior art date
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Pending
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CN201310059604.9A
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Chinese (zh)
Inventor
张永亮
麻百忠
房振
雷俊
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Midea Group Co Ltd
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Midea Group Co Ltd
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Priority to CN201310059604.9A priority Critical patent/CN104007775A/en
Publication of CN104007775A publication Critical patent/CN104007775A/en
Pending legal-status Critical Current

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Abstract

The invention brings forward electrothermal equipment and its voltage detection method. The voltage detection method comprises the following steps: Step 1, turning on the electrothermal equipment to make a heater to give out heat and beginning reckoning by time; Step 2, detecting temperature T0 of the heater when heating time reaches t0; and Step 3, comparing T0 with a temperature preset value corresponding to current power of the heater to calculate a voltage value of the electrothermal equipment. Thus, by the voltage detection method of the electrothermal equipment provided by the embodiment of the invention, the voltage value of the electrothermal equipment is accurately calculated by directly detecting temperature changes of the heater in unit time. Thus, it is ensured that the electrothermal equipment can automatically adjust the mode of heating under the working condition of unsteady voltage.

Description

Electric heating appliance and voltage detection method thereof
Technical field
The present invention relates to electric heating appliance field, particularly relate to a kind of electric heating appliance and voltage detection method thereof.
Background technology
Electric heating appliance improves the electrical equipment of temperature for generating heat by electrical heating elements, for example electric steamer, electric roaster or electric cooker.
In electric heating appliance, the voltage fluctuation of electrical network has a great impact its normal work, therefore need to when product design, consider the identification of voltage and make special processing for different voltage.
For example, when electric heating appliance detects current voltage when too low, originally use the food that electric cooker can boil for 30 minutes now can be automatically made 40 minutes, by extending the heat time, guaranteed to boil the required heat of food.
In prior art, by the water temperature variation tendency in the pan of detection electric heating appliance, judge the scope of voltage.
Yet water temperature and heat time all can change with the difference of environment, for example, under cold environment, can cause extending heating time and heating-up temperature to decline.In addition, water temperature and heat time also can change with the water yield in pan is different.Therefore, the magnitude of voltage that calculates electric heating appliance by water temperature has very large deviation, can not accurately reflect real voltage.
Summary of the invention
The present invention is intended at least solve one of technical matters existing in prior art.For this reason, one object of the present invention is to propose electric heating appliance that can direct-detection heter temperature.
Another object of the present invention is to propose a kind of method that this electric heating appliance detects voltage.
A further object of the present invention is to propose the method that another kind of this electric heating appliance detects voltage.
The electric heating appliance of embodiment comprises according to an aspect of the present invention: well heater; Temperature sensor, described temperature sensor is for detection of the temperature of described well heater; And master control borad, described master control borad has for the timer of timing and with described temperature sensor and is connected to calculate the magnitude of voltage of described electric heating appliance.
Thus, the electric heating appliance of the embodiment of the present invention, by the temperature of set temperature sensor direct-detection well heater, can effective eliminating external interference obtain Temperature numerical accurately, and then reach the object that calculates the current real voltage of electric heating appliance.In addition, the electric heating appliance of the embodiment of the present invention is simple in structure, is convenient to manufacture and processing.
In addition, according to electric heating appliance of the present invention, also there is following additional technical feature:
According to one embodiment of present invention, on described well heater, have mounting hole, described temperature sensor stretches into described well heater inside to detect the temperature of described well heater inside by described mounting hole.
According to one embodiment of present invention, described temperature sensor and described well heater contact to detect the temperature of described well heater.
According to one embodiment of present invention, described well heater is heating plate.
The voltage detection method of the electric heating appliance of embodiment according to a further aspect of the invention, comprises the steps: step 1, opens described electric heating appliance and well heater is generated heat and start timing; Step 2, when the heat time reaches t0, detect the temperature T 0 of described well heater; With step 3, by the T0 temperature preset value comparison corresponding with described well heater current power to calculate the magnitude of voltage of described electric heating appliance.
Thus, the voltage detection method of the electric heating appliance of the embodiment of the present invention, the temperature variation by direct-detection well heater within the unit interval, accurately extrapolates the current magnitude of voltage of electric heating appliance, guaranteed under the operating mode of voltage instability, electric heating appliance can regulate type of heating automatically.
In addition, according to the voltage detection method of electric heating appliance of the present invention, also there is following additional technical feature:
According to one embodiment of present invention, described temperature preset value comprises T1 and T2, if T0<T1, the magnitude of voltage of described electric heating appliance is within the scope of V1, if T1<T0≤T2, the magnitude of voltage of described electric heating appliance is within the scope of V2, if T0>T2, the magnitude of voltage of described electric heating appliance is within the scope of V3.
According to one embodiment of present invention, the power of described well heater is flat-out 80%~100%.
The voltage detection method of the electric heating appliance of embodiment according to a further aspect of the present invention, comprises the steps: step 1, opens described electric heating appliance and make well heater heating; Step 2, when reaching temperature preset value T4, described heter temperature starts timing; Step 3, when continuing rise and reach temperature preset value T5, described heter temperature stops timing and calculates described heter temperature arriving T5 time t1 used from T4; With step 4, the t1 time preset value corresponding with described well heater current power relatively calculated to the magnitude of voltage of described electric heating appliance.
Thus, the voltage detection method of the electric heating appliance of the embodiment of the present invention, by direct-detection well heater, from temperature T 4, be heated to the temperature variation of temperature T 5, and calculate and heat the time used, accurately extrapolate the current magnitude of voltage of electric heating appliance, guaranteed under the operating mode of voltage instability, electric heating appliance can regulate type of heating automatically.
In addition, according to the voltage detection method of electric heating appliance of the present invention, also there is following additional technical feature:
According to one embodiment of present invention, described time preset value comprises t2, t3 and t4, if t1≤t2, the magnitude of voltage of described electric heating appliance is within the scope of V4, if t2<t1≤t3, the magnitude of voltage of described electric heating appliance is within the scope of V5, if t3<t1≤t4, the magnitude of voltage of described electric heating appliance is within the scope of V6, if t1>t4, the magnitude of voltage of described electric heating appliance is within the scope of V7.
According to one embodiment of present invention, the power of described well heater is flat-out 80%~100%.
Additional aspect of the present invention and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage accompanying drawing below combination obviously and is easily understood becoming the description of embodiment, wherein:
Fig. 1 is according to the schematic diagram of the well heater of the electric heating appliance of the embodiment of the present invention and temperature sensor;
Fig. 2 is according to the process flow diagram of a kind of voltage detection method of the thermoelectricity device of the embodiment of the present invention;
Fig. 3 is according to the process flow diagram of the another kind of voltage detection method of the thermoelectricity device of the embodiment of the present invention.
Complement description of symbols:
10: well heater; 20: temperature sensor; In t0: embodiment 1, heat duration; In t1: embodiment 2 from temperature T 4 to temperature T 5 duration used; Time preset value in t2-t4: embodiment 2; The temperature value of the well heater detecting in T0: embodiment 1; Temperature preset value in T1-T2: embodiment 1; Magnitude of voltage in V1-V3: embodiment 1; Magnitude of voltage in V4-V7: embodiment 2; S1: step 1; S2: step 2; S3: step 3; S4: step 4.
Embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment being described with reference to the drawings, be exemplary, only for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of indications such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as limitation of the present invention.In addition, term " first ", " second " be only for describing object, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the invention, except as otherwise noted, the implication of " a plurality of " is two or more.
In description of the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be mechanical connection, can be to be also electrically connected to; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can concrete condition understand above-mentioned term concrete meaning in the present invention.
Below with reference to Fig. 1, the electric heating appliance according to the embodiment of the present invention is described.
Electric heating appliance according to the embodiment of the present invention, comprising: well heater 10, temperature sensor 20 and master control borad.
After well heater 10 energising, heating to be to improve the temperature of electric heating appliance parts to be heated, take electric heating appliance as electric cooker be example, the pan of 10 pairs of electric cookers of well heater heats.
Temperature sensor 20 is located in electric heating appliance and for the temperature of direct-detection well heater 10.Due to the temperature of temperature sensor 20 direct-detection well heaters 10, therefore can get rid of the interference of external environment to thermometric accuracy, realize the object of accurate thermometric.
Master control borad is arranged in electric heating appliance and has the timer for timing, master control borad is connected with temperature sensor 20, by the timing of timer and the temperature value of the detected well heater 10 of temperature sensor 20, and utilizing the computing method of self storing, master control borad can be extrapolated the magnitude of voltage of electric heating appliance 10.
Electric heating appliance, by detecting current voltage value, can automatically be adjusted heat time or the heating intensity of well heater 10, thereby the in the situation that of spread of voltage, still guarantee electric heating appliance working stability.
Thus, the electric heating appliance of the embodiment of the present invention, by the temperature of set temperature sensor 20 direct-detection well heaters 10, can effectively get rid of external interference and obtain Temperature numerical accurately, and then reach the object that calculates the current real voltage of electric heating appliance.In addition, the electric heating appliance of the embodiment of the present invention is simple in structure, is convenient to manufacture and processing.
In addition, temperature sensor 20 can be by contacting to detect its temperature with any position of well heater 10.
As shown in Figure 1, preferably, well heater 10 can be heating plate, has mounting hole on heating plate, and temperature sensor 20 stretches into well heater 10 inside to detect the temperature of well heater 10 by mounting hole.Particularly, mounting hole can be located at the bottom of heating plate, so that temperature sensor 20 inserts into the inner portion from the bottom of well heater 10.
By temperature sensor 20 being stretched in well heater 10, can effectively avoid the impact of external environment on detected temperatures accuracy, improve detection detection sensitivity.
Other formations of the electric heating appliance of the embodiment of the present invention can be well known by persons skilled in the art, do not repeat them here.
Below with reference to Fig. 2 and 3, describe according to the voltage detection method of the electric heating appliance of the embodiment of the present invention.
The embodiment of the present invention the principle of work of voltage detection method of electric heating appliance be, for the parameter of the well heater of the electric heating appliance of same model, be roughly the same, in same electrical, depress, the power of the well heater of the electric heating appliance of same model should equate substantially.For example, when voltage is 200V, the power of well heater is all about 0.83P, and when voltage is 240V, the power of well heater is all about 1.2P, the rated power that wherein P is well heater, and when voltage is 220V, the power of well heater is P.
Consider that electric heating appliance of the present invention is directly heating up by well heater, so the temperature of well heater is very obvious with the different variations of power.
Can prestore many groups parameter predetermined value of electric heater 10 of electric heating appliance inside, these parameter predetermined values are that to take the power of electric heater 10 be grouping foundation, under certain power, the corresponding different magnitudes of voltage of different parameters predetermined value.By the parameter current of well heater 10 and these parameter predetermined values relatively being extrapolated to the current voltage value of well heater 10.For example, well heater 10 starts heating with certain power, and electric heating appliance can be compared the parameter current of the well heater detecting 10 this group parameter predetermined value corresponding with this power.
Because the voltage detection method of electric heating appliance of the present invention adopts, directly the temperature of well heater 10 is detected, therefore can guarantee the parameter current of well heater 10 accurately and reliably, guaranteed the accuracy of the electric heating appliance current voltage value that reckoning draws.
Embodiment 1
As shown in Figure 2, the voltage detection method according to electric heating appliance of the present invention, comprises the steps:
Step S1, unlatching electric heating appliance make well heater 10 start timing with certain power heating and master control borad control timer.
Step S2, when the heat time of well heater 10 reaches t0, by the temperature T 0 of temperature sensor 20 direct-detection well heaters 10.
Step S3, temperature T 0 feed back to after master control borad, and master control borad relatively calculates by the temperature T 0 temperature preset value corresponding with well heater 10 current power the magnitude of voltage that electric heating appliance is current according to the operating power of current well heater 10.
Particularly, temperature preset value comprises T1 and T2.If T0<T1, the magnitude of voltage of electric heating appliance is within the scope of V1; If T1<T0≤T2, the magnitude of voltage of electric heating appliance is within the scope of V2; If T0>T2, the magnitude of voltage of electric heating appliance is within the scope of V3.
The operating power of well heater 10 of take below describes as 600W as example.
When the operating power of well heater 10 is 600W, t0 is made as 5 minutes, T1 be 130 ℃, T2 be 140 ℃,, and V1 is 198-205V, V2, be that 206-212V, V3 are for being greater than 212V.
If the temperature that well heater 10 records after 5 minutes in heating is 125 ℃, T0<T1, therefore, electric heating appliance voltage at that time, between 198-205V, belongs on the low side, needs the proper extension heat time
Preferably, the power of well heater 10 is flat-out 80%~100%, adopts high-power being conducive to offset the impact that natural heat dissipation detects well heater 10 true temperatures, therefore can further improve the accuracy of voltage detection method of the present invention.
Thus, the voltage detection method of the electric heating appliance of the embodiment of the present invention, the temperature variation by direct-detection well heater 10 within the unit interval, accurately extrapolates the current magnitude of voltage of electric heating appliance, guaranteed under the operating mode of voltage instability, electric heating appliance can regulate type of heating automatically.
It should be noted that in the present embodiment, parameter predetermined value on the same group not, as T1, T2 and V1-V3, can be different, for example, during power 800W, when the numerical value of T1 can specific power 600W, the numerical value of T1 is high.In addition, in the present embodiment, the quantity of the magnitude of voltage of temperature preset value and electric heating appliance can not done concrete restriction, as long as heating-up temperature can be divided into zones of different, and a corresponding magnitude of voltage region, each region.Along with increasing of the temperature province of dividing and voltage regime, make the voltage detecting of electric heating appliance more accurate, to be applicable to controlling the equipment more accurately that requires.
Embodiment 2
As shown in Figure 3, the voltage detection method according to electric heating appliance of the present invention, comprises the steps:
Step S1, unlatching electric heating appliance make well heater 10 generate heat with certain power.
Step S2, when the temperature of well heater 10 reaches temperature preset value T4, master control borad control counter starts timing.
Step S3, when the temperature of well heater 10 continues rise and reach temperature preset value T5, master control borad control counter stops timing, and the temperature of calculating well heater 10 arrives T5 time t1 used from T4.
Step 4, the t1 time preset value corresponding with well heater current power relatively calculated to the current voltage value of heating electrical appliance.
Particularly, time preset value comprises t2, t3 and t4.If t1≤t2, the magnitude of voltage of electric heating appliance is within the scope of V4, if t2<t1≤t3, the magnitude of voltage of electric heating appliance is within the scope of V5, if t3<t1≤t4, the electric magnitude of voltage of electric heating is within the scope of V6, if t1>t4, the magnitude of voltage of electric heating appliance is within the scope of V7.
The operating power of well heater 10 of take below describes as 600W as example.
When the operating power of well heater 10 is 600W, T4 is that 60 ℃, T5 are 130 ℃, t2 be four minutes, t3 be five minutes, t4 for being greater than five minutes, V4 is that 200-220V, V6 are that 190V-200V, V7 are for being less than 190V for being greater than 220V, V5.
Preferably, the power of well heater 10 is flat-out 80%~100%, adopts high-power being conducive to offset the impact that natural heat dissipation detects well heater 10 true temperatures, therefore can further improve the accuracy of voltage detection method of the present invention.
In the present embodiment, the quantity of the magnitude of voltage of time preset value and electric heating appliance can not done concrete restriction, as long as the heat time can be divided into zones of different, and a corresponding magnitude of voltage region, each region.Along with increasing of the heat time region of dividing and voltage regime, the voltage detecting of electric heating appliance is more accurate, to be applicable to controlling the equipment more accurately that requires.
Thus, the voltage detection method of the electric heating appliance of the embodiment of the present invention, by direct-detection well heater 10, from temperature T 4, be heated to the temperature variation of temperature T 5, and calculate and heat the time used, accurately extrapolate the current magnitude of voltage of electric heating appliance, guaranteed under the operating mode of voltage instability, electric heating appliance can regulate type of heating automatically.
It should be noted that in the present embodiment, parameter predetermined value on the same group not, as t2-t4 and V4-V6, can be different, for example, during power 800W, the numerical value of scheming t2 when the numerical value of t2 can specific power 600W is low.
In the description of this instructions, the description of reference term " embodiment ", " some embodiment ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or feature can be with suitable mode combinations in any one or more embodiment or example.
Although illustrated and described embodiments of the invention, those having ordinary skill in the art will appreciate that: in the situation that not departing from principle of the present invention and aim, can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is limited by claim and equivalent thereof.

Claims (9)

1. an electric heating appliance, is characterized in that, comprising:
Well heater;
Temperature sensor, described temperature sensor is for detection of the temperature of described well heater; With
Master control borad, described master control borad has for the timer of timing and with described temperature sensor and is connected to calculate the magnitude of voltage of described electric heating appliance.
2. electric heating appliance according to claim 1, is characterized in that: on described well heater, have mounting hole, described temperature sensor stretches into described well heater inside to detect the temperature of described well heater inside by described mounting hole.
3. electric heating appliance according to claim 1, is characterized in that: described temperature sensor and described well heater contact to detect the temperature of described well heater.
4. according to the electric heating appliance described in any one in claim 1-3, it is characterized in that: described well heater is heating plate.
5. a voltage detection method for the electric heating appliance as described in any one in claim 1-4, is characterized in that, comprises the steps:
Step 1, open described electric heating appliance and well heater is generated heat and start timing;
Step 2, when the heat time reaches t0, detect the temperature T 0 of described well heater; With
Step 3, by the T0 temperature preset value comparison corresponding with described well heater current power to calculate the magnitude of voltage of described electric heating appliance.
6. voltage detection method according to claim 5, it is characterized in that: described temperature preset value comprises T1, T2 and T3, if T0<T1, the magnitude of voltage of described electric heating appliance is within the scope of V1, if T1<T0≤T2, the magnitude of voltage of described electric heating appliance is within the scope of V2, if T0>T2, the magnitude of voltage of described electric heating appliance is within the scope of V3.
7. voltage detection method according to claim 5, is characterized in that: the power of described well heater is flat-out 80%~100%.
8. a voltage detection method for the electric heating appliance as described in any one in claim 1-4, is characterized in that, comprises the steps:
Step 1, open described electric heating appliance and make well heater heating;
Step 2, when reaching temperature preset value T4, described heter temperature starts timing;
Step 3, when continuing rise and reach temperature preset value T5, described heter temperature stops timing and calculates described heter temperature arriving T5 time t1 used from T4; With
Step 4, the t1 time preset value corresponding with described well heater current power relatively calculated to the magnitude of voltage of described electric heating appliance.
9. voltage detection method according to claim 8, it is characterized in that: described time preset value comprises t2, t3 and t4, if t1≤t2, the magnitude of voltage of described electric heating appliance is within the scope of V4, if t2<t1≤t3, the magnitude of voltage of described electric heating appliance is within the scope of V5, if t3<t1≤t4, the magnitude of voltage of described electric heating appliance is within the scope of V6, if t1>t4, the magnitude of voltage of described electric heating appliance is within the scope of V7.10, voltage detection method according to claim 8, is characterized in that: the power of described well heater is flat-out 80%~100%.
CN201310059604.9A 2013-02-25 2013-02-25 Electrothermal equipment and voltage detection method Pending CN104007775A (en)

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Application Number Priority Date Filing Date Title
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WO2016115890A1 (en) * 2015-01-22 2016-07-28 卓尔悦(常州)电子科技有限公司 Temperature control system and control method thereof, and electronic cigarette containing said temperature control system
CN112578828A (en) * 2019-09-30 2021-03-30 张玮 Temperature measuring method and device and heating equipment
CN113397381A (en) * 2021-08-06 2021-09-17 珠海格力电器股份有限公司 Water boiling method of water boiling device, water boiling device and computer readable storage medium
CN113647835A (en) * 2021-08-19 2021-11-16 珠海格力电器股份有限公司 Method and device for judging abnormal reduction of power of household appliance and household appliance
CN115399623A (en) * 2021-05-28 2022-11-29 佛山市顺德区美的电热电器制造有限公司 Cooking appliance, control method and control system thereof, and readable storage medium

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WO2016115890A1 (en) * 2015-01-22 2016-07-28 卓尔悦(常州)电子科技有限公司 Temperature control system and control method thereof, and electronic cigarette containing said temperature control system
CN112578828A (en) * 2019-09-30 2021-03-30 张玮 Temperature measuring method and device and heating equipment
CN115399623A (en) * 2021-05-28 2022-11-29 佛山市顺德区美的电热电器制造有限公司 Cooking appliance, control method and control system thereof, and readable storage medium
CN113397381A (en) * 2021-08-06 2021-09-17 珠海格力电器股份有限公司 Water boiling method of water boiling device, water boiling device and computer readable storage medium
CN113647835A (en) * 2021-08-19 2021-11-16 珠海格力电器股份有限公司 Method and device for judging abnormal reduction of power of household appliance and household appliance

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