CN205053773U - Electric kettle heating control circuit and electric kettle - Google Patents
Electric kettle heating control circuit and electric kettle Download PDFInfo
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- CN205053773U CN205053773U CN201520770576.6U CN201520770576U CN205053773U CN 205053773 U CN205053773 U CN 205053773U CN 201520770576 U CN201520770576 U CN 201520770576U CN 205053773 U CN205053773 U CN 205053773U
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 72
- 230000001105 regulatory effect Effects 0.000 claims abstract description 8
- 238000005485 electric heating Methods 0.000 claims description 30
- 230000003750 conditioning effect Effects 0.000 claims description 22
- 238000005070 sampling Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 10
- 230000001012 protector Effects 0.000 claims description 9
- 230000001276 controlling effect Effects 0.000 claims description 4
- 238000006298 dechlorination reaction Methods 0.000 abstract description 18
- 238000009835 boiling Methods 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 27
- 238000010586 diagram Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 230000000382 dechlorinating effect Effects 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 229910001006 Constantan Inorganic materials 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- HPDFFVBPXCTEDN-UHFFFAOYSA-N copper manganese Chemical compound [Mn].[Cu] HPDFFVBPXCTEDN-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Abstract
The utility model provides an electric kettle heating control circuit and electric kettle. The heating control circuit of the electric kettle comprises a heating device and a power regulating circuit, wherein the heating device is connected to a power supply; the power regulating circuit is connected with the heating device in series and used for regulating the heating power of the heating device. The utility model provides an electric kettle heating control circuit and electric kettle can realize that electric kettle heats under different power, reach the purpose of boiling and dechlorination, and the cost is lower.
Description
Technical field
The utility model embodiment relates to household electrical appliance technical field, particularly relates to a kind of electric heating kettle heating control circuit and electric kettle.
Background technology
Electric kettle, as the heating appliances of water, has the function of the rear auto-breaking of water boiling, anti-dry power-off.Owing to having certain chlorine in running water, if the edible more chloride water of human body can damage the healthy of people, and the content of chlorine can be overflowed gradually with the rising of temperature from water in water, therefore the effect that dechlorinates preferably is if desired reached, extending the heat time of water, is the method that dechlorinates the most easily.
And the electric kettle with dechlorination effect is in the market all employing two groups of heaters substantially, one group is high power heater, another group is low-power heater, normal to boil water time, high power heater and low-power heater work simultaneously, after water boil, high power electro-heat equipment deenergization does not heat, and the lower powered heater of another group works on a period of time, for dechlorination.Due to needs employing two groups of heaters in prior art, and due to the cost of heater higher, and then cause the cost of whole electric kettle higher.
Utility model content
The utility model provides a kind of electric heating kettle heating control circuit and electric kettle, in order to solve above-mentioned defect of the prior art, realizes electric kettle and heats under different capacity, reach the object of boiling with dechlorination, and cost of goods manufactured is lower.
The utility model provides a kind of electric heating kettle heating control circuit on the one hand, comprising:
Heater, described heater is connected to power supply;
Power conditioning circuitry, described power conditioning circuitry is connected with described heater, for regulating the heating power of described heater.
Further, described power conditioning circuitry comprises the first branch road parallel with one another and the second branch road;
Described first branch road comprises temperature detect switch (TDS), and described temperature detect switch (TDS) is used for detecting that water-in-kettle temperature turns off after reaching predetermined temperature;
What described second branch road comprised mutually series connection falls power model and control module; Describedly fall the heating power of power model for reducing heater, described control module is used for controlling described second branch road conducting when the electric current in described first branch road is reduced to zero.
Further, described power conditioning circuitry also comprises the current sensing device of connecting with described temperature detect switch (TDS), and described control module comprises electric-controlled switch and the MCU control chip of series connection mutually; Wherein,
Described MCU control chip, for when the electric current in loop heater place being detected is reduced to zero from preset value, controls described electric-controlled switch closed to make described second branch road conducting, and controls the disconnection of described electric-controlled switch after a preset time lapses;
Described current sensing device, for detecting the current signal in the loop at described heater place, and send to described MCU control chip after detected current signal is converted to voltage signal, for described MCU control chip, obtained voltage signal is converted to current signal, and control described electric-controlled switch when the current signal after changing is reduced to zero from preset value closed.
Further, described current sensing device comprises sampling resistor and operational amplifier, and described sampling resistor is connected with described temperature detect switch (TDS); Wherein,
Described operational amplifier is used for the pressure drop at described sampling resistor two ends to amplify process, and the sampling resistor two ends pressure drop signal after amplifying is sent to described MCU control chip, convert described pressure drop signal to current signal for described MCU control chip, and control described electric-controlled switch when the current signal after changing is reduced to zero from preset value closed.
Further, described electric-controlled switch is relay switch or thyristor switch.
Optionally, described control module is mechanical switch.
Further, falling power model described in is diode element.
Further, also comprise anti-dry protector, described anti-dry protector is connected with described heater and power conditioning circuitry, for when detecting that the heating temp of described electro-heat equipment reaches preset temperature and power supply disconnect.
Further,
Described first branch road also comprises the first warning light, and described first warning light is in high-power heated condition for pointing out heater;
Described second branch road also comprises the second warning light, and described second warning light is in low-power heating state for pointing out heater.
The utility model provides a kind of electric kettle on the other hand, comprises the electric heating kettle heating control circuit as above described in any one.
The electric heating kettle heating control circuit that the utility model provides and electric kettle, regulated by the heating power of power conditioning circuitry to heater, heater can be realized work under different capacity, can realize under high-power state water-in-kettle is boiled, heating is continued to realize the dechlorination to water-in-kettle under small-power state, owing to just can reach boiling of water-in-kettle and the effect that dechlorinates by means of only a heater, therefore product cost is also lower.
Accompanying drawing explanation
The circuit theory diagrams of the electric heating kettle heating control circuit that Fig. 1 provides for the utility model embodiment one;
The electric heating kettle heating control circuit schematic diagram that Fig. 2 provides for the utility model embodiment two;
The electric heating kettle heating control circuit schematic diagram that Fig. 3 provides for the utility model embodiment three;
The electric heating kettle heating control circuit schematic diagram that Fig. 4 provides for the utility model embodiment four.
Reference numeral:
1-heater; 2-power conditioning circuitry; 3-current sensing device;
4-anti-dry protector; 5-first warning light; 6-second warning light;
21-first branch road; 22-second branch road; 211-temperature detect switch (TDS);
Power model falls in 221-; 222-control module; 223-electric-controlled switch;
224-MCU control chip.
Detailed description of the invention
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment one
The circuit theory diagrams of the electric heating kettle heating control circuit that Fig. 1 provides for the utility model embodiment one; Please refer to accompanying drawing 1, the present embodiment provides a kind of electric heating kettle heating control circuit, comprising: heater 1 and power conditioning circuitry 2; Heater 1 is connected to power supply; Power conditioning circuitry 2 is connected with heater 1, for regulating the heating power of heater 1.
Heater 1 can select heating wire, ceramic heater, electrothermal tube, fever tablet, electrical bar heat-generating disc, electric heating coil etc., heater 1 can to the water heating in electric kettle under flat-out state, until water-in-kettle by boiled to after 100 DEG C, the heating power of heater 1 can be regulated by power conditioning circuitry 2, particularly, the heating power of heater 1 can be reduced, to realize under low power state the water heating in electric kettle.
The electric heating kettle heating control circuit that the present embodiment provides, by heater is connected with power conditioning circuitry, when needing boiled to the water heating in electric kettle, power conditioning circuitry can be adopted to regulate the heating power of heater, it can be made to heat under total power, namely under peak power, water-in-kettle is heated, to realize heating up water fast, after water-in-kettle boils, power conditioning circuitry can reduce the heating power of heater, to realize heating water-in-kettle under low power heated condition, both chlorinity in water-in-kettle can effectively be reduced, water-in-kettle boiling in the process of dechlorination process can be prevented again simultaneously and spray in kettle, ensure use safety, work under different capacity state because the technical program only needs a heater also can reach, to realize the different disposal to water-in-kettle, with low cost.
Embodiment two
The present embodiment, on the basis of embodiment one, is optimized further to power conditioning circuitry, the electric heating kettle heating control circuit schematic diagram that Fig. 2 provides for the utility model embodiment two; As shown in Figure 2, power conditioning circuitry 2 can comprise the first branch road 21 and the second branch road 22 parallel with one another; Wherein, the first branch road 21 can comprise temperature detect switch (TDS) 211, and temperature detect switch (TDS) 211 is for detecting that water-in-kettle temperature turns off after reaching predetermined temperature; What the second branch road 22 can comprise mutually series connection falls power model 221 and control module 222; Fall the heating power of power model 221 for reducing heater 1, control module 222 is for controlling the second branch road 22 conducting when the electric current in the first branch road 21 is reduced to zero.When normally heating up water, first branch road 21 conducting, second branch road 22 not conducting, after water-in-kettle burns predetermined temperature (100 DEG C), temperature detect switch (TDS) 211 disconnects, now, second branch road 22 conducting, after second branch road 22 conducting, heater 1 owing to realizing low-power heating under the effect of falling power model 221, and then realizes the dechlorination process to the water in electric kettle.
Temperature detect switch (TDS) 211 is specifically as follows steam cock, and steam cock comprises bimetal leaf, electric kettle switches on power after heating, water temperature progressively rises to 100 DEG C, water comes to life, the steam produced after boiling circulates by jet chimney and impacts the bimetal leaf above temperature detect switch (TDS), bimetal leaf is under the conduction of steam heat, own temperature constantly raises, bimetal leaf dilatancy, and utilize distortion to back down steam cock contact deenergization by lever principle, thus make electric kettle at the boiled rear auto-breaking of water, after power-off, kettle can not heat automatically again.
It should be noted that at this, control module 222 is for controlling the second branch road 22 conducting when the electric current in the first branch road 21 is reduced to zero; Or not when the first branch road 21 conducting of second branch road 22, under normal circumstances, get rid of the situation of the first branch road 21 harness damage, when the electric current in the first branch road 21 is reduced to zero, current vanishes in first branch road 21 is described, temperature detect switch (TDS) 211 in first branch road 21 disconnects, now water-in-kettle boiled boiling, and the second branch road 22 starts conducting.
Falling power model 221 can be diode element, domestic electric heating kettle generally adopts AC-powered, by the diode of one-way conduction, the half signal of AC signal is applied to heater 1, now, the heating power of heater 1 is the half of total power when to boil water (power) namely, realizes dechlorinating to water-in-kettle under low-power heating state.Certainly, fall power model 221 and other can realize falling the electronic devices and components of power functions yet, at this, the present embodiment does not do concrete restriction.
Control module 222 can be automatic control module, also can be manual control module, but no matter be the mode or the mode of Non-follow control that automatically control, control module 222 is that the electric current in the first branch road 21 controls the second branch road 22 conducting when being reduced to zero, namely when the boiled rear power-off of electric hot water water-in-kettle, the second branch road 22 is connected, to realize the post bake to electric hot water water-in-kettle, and be this time heated by the effect of falling power model 221, realize low-power heating.
Embodiment three
The present embodiment, on the basis of embodiment two, is optimized further; The electric heating kettle heating control circuit schematic diagram that Fig. 3 provides for the utility model embodiment three; Please refer to accompanying drawing 3, further, power conditioning circuitry 2 can also comprise the current sensing device 3 of connecting with temperature detect switch (TDS) 211, and control module 222 can comprise electric-controlled switch 223 and the MCU control chip 224 of series connection mutually; Wherein, MCU control chip 224, for when the electric current in loop heater 1 place being detected is reduced to zero from preset value, controls electric-controlled switch 224 closed to make the second branch road 22 conducting, and control electric-controlled switch 224 disconnects after a preset time lapses; Current sensing device 3 is for detecting the current signal in the loop at heater 1 place, and send to MCU control chip 224 after detected current signal is converted to voltage signal, for MCU control chip 224, obtained voltage signal is converted to current signal, and it is closed to control electric-controlled switch 224 when the current signal after changing is reduced to zero from preset value.Can built-in mould number converter in MCU control chip 224, with by after voltage signal analog-to-digital conversion, then the digital voltage signal after conversion is converted to current signal.
It will be appreciated by persons skilled in the art that when the first branch road 21 conducting, during the second branch road 22 not conducting, heater 1 is heating with full power state, now, through the first branch road 21 flow through current sensing device 3 electric current can be the first preset value; And when the second branch road 22 conducting, during the first branch road not conducting, heater 1 is low-power heated condition (such as half-power heated condition), now, through the second branch road 22 flow through current sensing device 3 electric current can be the second preset value; And in the present embodiment, when the electric current in loop heater 1 place being detected is reduced to zero from preset value, definition " preset value " herein for through the first branch road 21 flow through the value of the electric current of current sensing device 3, i.e. the first preset value.When electric current in the loop at heater 1 place is reduced to zero from preset value, first branch road 21 open circuit is described, water in electric kettle seethes with excitement, and then need connection second branch road 22 to make heater 1 be in low-power heating state, therefore, now MCU control chip 224 can control electric-controlled switch 223 and closes, and the second branch road 22 conducting, electric kettle enters dechlorination state.
Current sensing device 3 is in parallel with the second branch road 22 after can connecting with temperature detect switch (TDS) 211, in such cases, and the electric current that what current sensing device 3 specifically detected is in the first branch road 21; Or, first branch road 21 is connected with current sensing device 3 with after the second branch road 22 parallel connection again, and in such cases, what current sensing device 3 detected is the electric current flowing through the first branch road 21 or the second branch road 22, and when electric current is reduced to zero from preset value, illustrate and be reduced to before zero at electric current, the first branch road 21 conducting, the second branch road 22 not conducting, be reduced to the moment of zero, first branch road 21 open circuit, water-in-kettle seethes with excitement, and needs subsequently to carry out dechlorination process.
And further, MCU control chip 224 also controls electric-controlled switch 224 after a preset time lapses and disconnects; This Preset Time can be user's set as required dechlorination time, and electric-controlled switch 224 disconnects and this electric kettle can be made to realize automatic circuit break function after Preset Time, does not need user keeping an eye on, user-friendly.
In addition, in the present embodiment, electric-controlled switch 223 can be relay switch, thyristor switch etc., and at this, the utility model is not construed as limiting.
Further, current sensing device 3 can comprise sampling resistor and operational amplifier, and sampling resistor is connected with temperature detect switch (TDS) 211; Wherein, operational amplifier is used for the pressure drop at sampling resistor two ends to amplify process, and the sampling resistor two ends pressure drop signal after amplifying is sent to MCU control chip 224, convert pressure drop signal to current signal for MCU control chip 224, and it is closed to control electric-controlled switch 223 when the current signal after changing is reduced to zero from preset value.Sampling resistor specifically can select constantan wire or manganese-copper filament, adopts the mode of sampling resistor and operational amplifier, because sampling resistor is with low cost, and small volume, and due to the small volume of electric kettle, therefore very applicable.
MCU control chip 224 can obtain current signal at any time and judge the current operating state of heater in time, when the current signal got is reduced to zero from preset value, represent the first branch road 21 open circuit, water-in-kettle is boiled, dechlorination step need be entered, therefore, now control electric-controlled switch 223 and close, make the second branch road 22 conducting, electric kettle enters dechlorination state.
Certainly, current sensing device 3 is not limited to above-mentioned mode, such as, can also be modular type Hall current sensor etc.
Embodiment four
The electric heating kettle heating control circuit schematic diagram that Fig. 4 provides for the utility model embodiment four, the present embodiment and embodiment three unlike, control module 222 is mechanical switch 222.Heater 1 heating work when electric kettle switches on power to boil water, when water boil is to the design temperature of temperature detect switch (TDS) 211, temperature detect switch (TDS) 211 disconnects the power supply of heater 1, now can pin this mechanical switch not put, heater 1 can switch on power with low-power heating always, carries out dechlorination work, when dechlorination work reaches user's perfect condition, get final product release mechanism switch 222, now heater 1 deenergization, electric kettle completes dechlorination work; Also can click mechanical switch 222 when needs dechlorinate, start the work of dechlorinating, when after the time that dechlorination work reaches needed for user, then press one-time mechanical switch 222, electric kettle stops dechlorination work; Its method of operating has multiple, and at this, the present embodiment is not construed as limiting.
As shown in Figure 3 and Figure 4; the electric heating kettle heating control circuit provided in above-described embodiment can further include anti-dry protector 4; anti-dry protector 4 is connected with heater 1 and power conditioning circuitry 2, for when detecting that the heating temp of electro-heat equipment 1 reaches preset temperature and power supply disconnect.Anti-dry protector 4 can comprise bimetal leaf; and the below of heater 1 can be arranged on, if temperature detect switch (TDS) 211 lost efficacy, the water in kettle can burn down always; until water is dryouied; the temperature of heater 1 can sharply rise, and is positioned at the anti-dry protector 4 below heater 1, can because conduction of heat temperature sharply rises; dilatancy; and then deenergization, anti-dry protection is realized to kettle, improves security performance.
In above-described embodiment, further, the first branch road 21 can also comprise the first warning light 5, first warning light 5 and is in high-power heated condition for pointing out heater 1; Second branch road 21 can also comprise the second warning light 6, second warning light 6 and be in low-power heating state for pointing out heater 1.Further, the color shown by the first warning light 5 can be different with the color shown by the second warning light 6, and thus, user can judge that electric kettle is in state to boil water or dechlorination state, to improve Consumer's Experience intuitively.
Embodiment five
The present embodiment provides a kind of electric kettle, comprise as above-mentioned any embodiment the electric heating kettle heating control circuit that provides.
Last it is noted that above embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (10)
1. an electric heating kettle heating control circuit, is characterized in that, comprising:
Heater, described heater is connected to power supply;
Power conditioning circuitry, described power conditioning circuitry is connected with described heater, for regulating the heating power of described heater.
2. electric heating kettle heating control circuit according to claim 1, is characterized in that, described power conditioning circuitry comprises the first branch road parallel with one another and the second branch road;
Described first branch road comprises temperature detect switch (TDS), and described temperature detect switch (TDS) is used for detecting that water-in-kettle temperature turns off after reaching predetermined temperature;
What described second branch road comprised mutually series connection falls power model and control module; Describedly fall the heating power of power model for reducing heater, described control module is used for controlling described second branch road conducting when the electric current in described first branch road is reduced to zero.
3. electric heating kettle heating control circuit according to claim 2, is characterized in that, described power conditioning circuitry also comprises the current sensing device of connecting with described temperature detect switch (TDS), and described control module comprises electric-controlled switch and the MCU control chip of series connection mutually; Wherein,
Described MCU control chip, for when the electric current in loop heater place being detected is reduced to zero from preset value, controls described electric-controlled switch closed to make described second branch road conducting, and controls the disconnection of described electric-controlled switch after a preset time lapses;
Described current sensing device, for detecting the current signal in the loop at described heater place, and send to described MCU control chip after detected current signal is converted to voltage signal, for described MCU control chip, obtained voltage signal is converted to current signal, and control described electric-controlled switch when the current signal after changing is reduced to zero from preset value closed.
4. electric heating kettle heating control circuit according to claim 3, is characterized in that, described current sensing device comprises sampling resistor and operational amplifier, and described sampling resistor is connected with described temperature detect switch (TDS); Wherein,
Described operational amplifier is used for the pressure drop at described sampling resistor two ends to amplify process, and the sampling resistor two ends pressure drop signal after amplifying is sent to described MCU control chip, convert described pressure drop signal to current signal for described MCU control chip, and control described electric-controlled switch when the current signal after changing is reduced to zero from preset value closed.
5. electric heating kettle heating control circuit according to claim 3, is characterized in that, described electric-controlled switch is relay switch or thyristor switch.
6. electric heating kettle heating control circuit according to claim 2, is characterized in that, described control module is mechanical switch.
7. the electric heating kettle heating control circuit according to any one of claim 2 ~ 6, is characterized in that, described in fall power model be diode element.
8. the electric heating kettle heating control circuit according to any one of claim 2 ~ 6; it is characterized in that; also comprise anti-dry protector; described anti-dry protector is connected with described heater and power conditioning circuitry, for when detecting that the heating temp of described heater reaches preset temperature and power supply disconnect.
9. the electric heating kettle heating control circuit according to any one of claim 2 ~ 6, is characterized in that,
Described first branch road also comprises the first warning light, and described first warning light is in high-power heated condition for pointing out heater;
Described second branch road also comprises the second warning light, and described second warning light is in low-power heating state for pointing out heater.
10. an electric kettle, is characterized in that, comprises the electric heating kettle heating control circuit as described in any one of claim 1 ~ 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520770576.6U CN205053773U (en) | 2015-09-30 | 2015-09-30 | Electric kettle heating control circuit and electric kettle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520770576.6U CN205053773U (en) | 2015-09-30 | 2015-09-30 | Electric kettle heating control circuit and electric kettle |
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| CN205053773U true CN205053773U (en) | 2016-03-02 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107157321A (en) * | 2017-05-11 | 2017-09-15 | 浙江绍兴苏泊尔生活电器有限公司 | Electric kettle |
| CN107981715A (en) * | 2016-10-26 | 2018-05-04 | 佛山市顺德区美的电热电器制造有限公司 | Dechlorinate control method, dechlorination control system, terminal and electric kettle |
| CN111248735A (en) * | 2018-12-03 | 2020-06-09 | 广东美的生活电器制造有限公司 | Liquid heating container, control method thereof and computer readable storage medium |
-
2015
- 2015-09-30 CN CN201520770576.6U patent/CN205053773U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107981715A (en) * | 2016-10-26 | 2018-05-04 | 佛山市顺德区美的电热电器制造有限公司 | Dechlorinate control method, dechlorination control system, terminal and electric kettle |
| CN107981715B (en) * | 2016-10-26 | 2020-09-22 | 佛山市顺德区美的电热电器制造有限公司 | Dechlorination control method, dechlorination control system, terminal and electric kettle |
| CN107157321A (en) * | 2017-05-11 | 2017-09-15 | 浙江绍兴苏泊尔生活电器有限公司 | Electric kettle |
| CN107157321B (en) * | 2017-05-11 | 2019-08-13 | 浙江绍兴苏泊尔生活电器有限公司 | Electric kettle |
| CN111248735A (en) * | 2018-12-03 | 2020-06-09 | 广东美的生活电器制造有限公司 | Liquid heating container, control method thereof and computer readable storage medium |
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