CN206137902U - Electric kettle - Google Patents
Electric kettle Download PDFInfo
- Publication number
- CN206137902U CN206137902U CN201620858226.XU CN201620858226U CN206137902U CN 206137902 U CN206137902 U CN 206137902U CN 201620858226 U CN201620858226 U CN 201620858226U CN 206137902 U CN206137902 U CN 206137902U
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- Prior art keywords
- power switch
- switch element
- water temperature
- unit
- control unit
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 134
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- 238000001514 detection method Methods 0.000 claims abstract description 6
- 230000000284 resting effect Effects 0.000 claims description 7
- 230000002123 temporal effect Effects 0.000 claims description 7
- 125000004122 cyclic group Chemical group 0.000 claims description 5
- 238000010009 beating Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
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- Cookers (AREA)
Abstract
The utility model provides an electric kettle, include: the water heater comprises a full-power switch unit (10), a heating unit (20), a control unit (30), a water temperature detection unit (40) and a half-power switch unit (50). Wherein, the commercial power supply supplies power to the heating unit (20) through the full-power switch unit (10) and the half-power switch unit (50) respectively; the control unit (30) is respectively connected with the full-power switch unit (10), the half-power switch unit (50) and the water temperature detection unit (40) and used for determining the change rate of the water temperature according to the water temperature detected by the water temperature detection unit (40) and controlling the opening and closing of the full-power switch unit (10) and the half-power switch unit (50) according to the change rate of the water temperature. The added half-power switch unit has a simple structure and lower cost, and the control unit can detect the change of the water temperature in time.
Description
Technical field
This utility model is related to circuit structure technical field, more particularly to a kind of insulating pot.
Background technology
Insulating pot because have the advantages that firing rate it is fast, without oil smoke, filtering function be strong, high insulating effect, be increasingly becoming
Indispensable a kind of electric equipment in people's daily life.
At present, the principle of heating of insulating pot is closed circuit switch so that the heating circuit conducting of insulating pot, power supply can be to
Heat-generating pipe is powered, and heat-generating pipe generates heat so as to water be heated.To ensure heats and the efficiency of heating surface, generally according to insulating pot most
Greatly the amount of being filled with water designs heat-generating pipe.But, when the water yield in insulating pot is less, heated using whole heat-generating pipe, it will shadow
Ring detection of the temperature detecting unit to water temperature, it is impossible to which realization is precisely controlled to water temperature.
Prior art controls the firing rate of heat-generating pipe by switching using controllable silicon replacement circuit, realizes to water temperature
It is precisely controlled.But, controllable silicon heating itself is serious, need to arrange larger fin to ensure normal work, so as to cause can
Control silicon unit takes up room big and relatively costly.
Utility model content
At least one problem mentioned in order to solve background technology, this utility model provides a kind of insulating pot, using accounting for
With the less half-power switch element in space, with better simply structure.
This utility model provides a kind of insulating pot, including the inspection of total power switch element, heat-generating units, control unit, water temperature
Survey unit and half-power switch element；Wherein
One end of one end of the total power switch element and the half-power switch element connects with the heat-generating units
Connect, the other end of the other end of the total power switch element and the half-power switch element is connected with mains supply；
Described control unit is detected respectively with the total power switch element, the half-power switch element and the water temperature
Unit connects, and the water temperature for being detected according to the water temperature detector unit determines water temperature rate of change, is become according to the water temperature
Change the opening and closing of total power switch element and the half-power switch element described in rate controlled.
It is former by control unit control by increasing a half-power switch element in the circuit structure of existing insulating pot
The closure and opening of some total power switch elements or the half-power switch element of increase so that insulating pot can be according to the water yield not
Together, control heat-generating units be operated under full power state or half-power working condition so that water temperature detector unit can and
When detect the change of water temperature, so that control unit sends control instruction according to the change of water temperature, due to half-power control unit
Simple structure, cost are relatively low, therefore can save space reduction cost.
Optionally, the half-power switch element includes：The switch and diode of series connection, the switch and civil power electricity
Source connects, and the diode is connected with the heat-generating units.
Because half-power switch element is only formed by common switch and Diode series, therefore simple structure, cost is relatively low.
Optionally, the switch is relay.
Optionally, the total power switch element includes relay.
Optionally, described control unit is additionally operable to when the water temperature rate of change is less than default rate of change, controls institute
Half-power switch element opening, total power switch element closure are stated, so that the heat-generating units are in running order；
Described control unit is additionally operable to when the water temperature rate of change is more than default rate of change, controls the total power
Switch element is opened, half-power switch element closure, so that the heat-generating units are followed in working order and between resting state
Ring cutting is changed.
Optionally, described control unit is additionally operable to when the water temperature is higher than preset temperature, controls the total power switch
Unit is opened, half-power switch element closure.
Optionally, described control unit is additionally operable to when heating instructions are received, and is controlled the half-power switch element and is closed
Close.
By according to water temperature rate of change, controlling the opening and closing of total power switch element and half-power switch element,
Control unit can be made in time to detect the change of water temperature, take protective measure.
Optionally, also including timing unit, described control unit is also connected with the timing unit, and described control unit is also
For when the water temperature that the water temperature detector unit sends is received, recording the time letter that timing unit described in current time is provided
Breath, according at least two water temperatures and the corresponding temporal information of each water temperature the water temperature rate of change is determined.
Optionally, also including filter unit, the total power switch element and the half-power switch element also respectively with
One end connection of the filter unit, the other end of the filter unit is also connected with the heat-generating units.
By increasing filter circuit in circuit structure, can be used for the abnormal current in filtering circuit, play protection circuit
Effect.
Construction of the present utility model and its other utility model purposes and beneficial effect will be by combining accompanying drawing
Description of preferred embodiments and become apparent from understandable.
Description of the drawings
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are
Some embodiments of the present utility model, for those of ordinary skill in the art, in the premise for not paying creative labor
Under, can be with according to these other accompanying drawings of accompanying drawings acquisition.
The structural representation of the insulating pot that Fig. 1 is provided for this utility model first embodiment；
The structural representation of the insulating pot that Fig. 2 is provided for this utility model second embodiment.
Reference：
10-total power switch element；20-heat-generating units；30-control unit；
40-water temperature detector unit；50-half-power switch element；60-timing unit；
70-filter unit；51-switch；52-diode.
Specific embodiment
It is new below in conjunction with this practicality to make purpose, technical scheme and the advantage of this utility model embodiment clearer
Accompanying drawing in type embodiment, is clearly and completely described, it is clear that retouched to the technical scheme in this utility model embodiment
The embodiment stated is a part of embodiment of this utility model, rather than the embodiment of whole.Based on the enforcement in this utility model
Example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made is belonged to
The scope of this utility model protection.
This utility model provides a kind of insulating pot, is taken with the reverse-blocking tetrode thyristor unit for solving insulating pot conventional at present empty
Between big and relatively costly problem.
The structural representation of the insulating pot that Fig. 1 is provided for this utility model first embodiment.As shown in figure 1, insulating pot bag
Include：Total power switch element 10, heat-generating units 20, control unit 30 and water temperature detector unit 40, and half-power switch element
50；
One end of total power switch element 10 and one end of half-power switch element 50 are connected with heat-generating units 20, Quan Gong
The other end of rate switch element 10 and the other end of half-power switch element 50 are connected with mains supply；
Control unit 30 connects respectively with total power switch element 10, half-power switch element 50 and water temperature detector unit 40
Connect, the water temperature for being detected according to water temperature detector unit 40 determines water temperature rate of change, it is complete according to the control of water temperature rate of change
The opening and closing of power switch unit 10 and half-power switch element 50.
Specifically, simultaneously total power switch element 10 and half-power switch element 50 are provided with insulating pot circuit structure.
One end of total power switch element 10 is connected with heat-generating units 20, other end mains supply connection, when total power is opened
When closing the closure of unit 10, mains supply is powered by total power switch element 10 to heat-generating units 20 so that heat-generating units 20 1
It is straight in running order so as to water is boiled.
One end of half-power switch element 50 is connected with heat-generating units 20, and the other end is connected with mains supply, works as half-power
When switch element 50 is closed, mains supply is powered by half-power switch element 50 to heat-generating units 20.Due to half-power switch
Unit 50 can control the supply access of mains supply, half-power switch element 50 and heat-generating units 20 composition one after closure
Half time turn on, second half when it is separated, therefore mains supply by total power switch element 10 to heat-generating units 20 power when,
The cyclic switching and between resting state in working order of hot cell 20, heat-generating units 20 are only capable of playing half-power, and speed of heating up water is slower.
Total power switch element 10 and half-power switch element 50 in this utility model can using it is existing switch and
Half-power switching device.
Control unit 30 is connected with water temperature detector unit 40, receives the water temperature that water temperature detector unit 40 is detected, exemplary
, transmission can be at preset timed intervals spaced by water temperature detector unit 40, also can in real time be sent by water temperature detector unit 40.Control unit
30 can determine water temperature rate of change according to the water temperature for receiving, and when water temperature rate of change is timing, illustrate that heat-generating units 20 are in
Working condition, water temperature rises；When water temperature rate of change is to bear, it is believed that heat-generating units 20 are in resting state, water temperature drop；
The absolute value of water temperature rate of change is higher, illustrates that the raising and lowering speed of water temperature is faster.
Control unit 30 is also connected with total power switch element 10 and half-power switch element 50 respectively, for controlling full work(
The opening and closing of rate switch element 10 and half-power switch element 50.Specifically, control unit 30 is according to water temperature rate of change
The opening and closing of control total power switch element 10 and half-power switch element 50.
When the water yield in insulating pot is less, the control half-power of control unit 30 switch element 50 is closed so that heating is single
Unit 20 is in half-power working condition, and speed of heating up water is slower, and water temperature change is relatively slow, rises too fast and causes so as to avoid water temperature
Water temperature detector unit 40 can not in time detect the change of water temperature.When water temperature change is very fast, water temperature detector unit 40 can not be timely
The change of water temperature is sent to into control unit 30, it will cause to generate heat single former 20 in the case where water is boiled, still in complete
Power operating state, causes the wasting of resources, further, may cause the situation that water dryouies in insulating pot.
It will be appreciated by those skilled in the art that, when total power switch element 10 and half-power switch element 50 are opened,
Heat-generating units 20 do not work, and insulating pot does not work.When total power switch element 10 or half-power switch element 50 are closed, heating
Unit 20 is in full power operation state or half-power working condition.The He of total power switch element 10 can be controlled by control unit 30
Half-power switch element 50 is not closed in synchronization.
The insulating pot that this utility model embodiment is provided, by increasing by one and half work(in the circuit structure of existing insulating pot
Rate switch element, controlled by control unit original total power switch element or increase half-power switch element closure and
Open so that insulating pot can control heat-generating units and be operated in full power state or half-power working condition according to the difference of the water yield
Under, so that water temperature detector unit can in time detect the change of water temperature, so that control unit is sent out according to the change of water temperature
Go out control instruction, because half-power control unit simple structure, cost are relatively low, therefore space reduction cost can be saved.
Further, on the basis of embodiment illustrated in fig. 1, the structure of double power switch unit 50 is carried out specifically
It is bright.
The structural representation of the insulating pot that Fig. 2 is provided for this utility model second embodiment.As shown in Fig. 2 half-power is opened
Closing unit 50 includes：The switch 51 and diode 52 of series connection, switch 51 is connected with mains supply, diode 52 and heat-generating units 20
Connection.
Specifically, half-power switch element 50 is in series by switch 51 and diode 52, mains supply, switch 51, two
Pole pipe 52, heat-generating units 20 are sequentially connected, and constitute loop.
Under normal circumstances, to the alternating current that the mains supply of the power supply of heat-generating units 20 is 220V, and diode 52 is only to permit
Perhaps the device that electric current flows to a direction, when the voltage inversion of positive and negative end of diode 52 is applied to, diode 52
In cut-off state, its resistance value is infinitely great, it is believed that loop disconnects.Therefore, when 51 closure is switched, due to diode 52
Effect so that loop turns within the positive period of mains supply, disconnects in the negative cycle of mains supply.Due to half-power switch
Unit 50 is only in series by common switch 51 and diode 52, therefore simple structure, and cost is relatively low.
Exemplary, switch 51 can be relay.Exemplary, total power switch element 10 includes relay, Quan Gong
Rate switch element 10 can also be relay.
Further, with reference to Fig. 1 or embodiment illustrated in fig. 2, control unit 30 is additionally operable in water temperature rate of change less than pre-
If during rate of change, control half-power switch element 50 is opened, total power switch element 10 is closed, so that heat-generating units 20 are in
Working condition；
Control unit 30 is additionally operable to when water temperature rate of change is more than default rate of change, control total power switch element 10
Open, half-power switch element 50 is closed, so that the cyclic switching and between resting state in working order of heat-generating units 20.
Specifically, control unit 30 determines water temperature rate of change according to the water temperature that water temperature detector unit 40 sends, and by water
Warm rate of change is compared with default water temperature rate of change.When water temperature rate of change is less than default rate of change, it is believed that when
Front water temperature pace of change is slower, and the water yield is larger in current insulating pot, and optional control half-power switch element 50 is opened, total power
Switch element 10 is closed, and makes heat-generating units 20 in flat-out working condition, water temperature rate of change is improved, to accelerate insulating pot
Work efficiency.When control unit 30 detects water temperature rate of change more than default rate of change, it is believed that current water temperature change speed
Degree is very fast, and the water yield is less in current insulating pot, and optional control total power switch element 10 is opened, half-power switch element 50 is closed
Close, make the cyclic switching and between resting state in working order of heat-generating units 20, reduce water temperature rate of change so that control unit 30
The change of water temperature can be in time detected, and takes protective measure.For example, water temperature rate of change is reduced, control unit 30 can be timely
Detect water temperature and reach boiling temperature, control total power switch element 10 and half-power switch element 50 are opened, i.e., water is boiled
After automatically power off, it is to avoid water dryout may caused by insulating pot damage.
Further, with reference to Fig. 1 or embodiment illustrated in fig. 2, control unit 30 is additionally operable to when water temperature is higher than preset temperature,
Control total power switch element 10 is opened, half-power switch element 50 is closed.
Specifically, when control unit 30 detects water temperature higher than preset temperature, control total power switch element 10 opens,
Half-power switch element 50 is closed.Exemplary, preset temperature can be 90 degrees Celsius of the boiling point of close water, or uses
Default other temperature in family, when water temperature reaches preset temperature, to the transmission OPEN of total power switch element 10, to half-power
Switch element 50 sends close command so that heat-generating units 20 are making cyclic switching between state and resting state, can play reduction
Water temperature rate of change or the effect of insulation.
Further, with reference to Fig. 1 or embodiment illustrated in fig. 2, control unit 30 is additionally operable to when heating instructions are received, control
Half-power switch element 50 processed is closed.
Specifically, when user is not used insulating pot, total power switch element 10 and half-power switch element 50 are in
Open mode, when user uses insulating pot, when sending heating instructions to control unit 30, control unit 30 refers to receiving heating
When making, control half-power switch element 50 is closed so that heat-generating units 20 are when initial using the working condition of half-power to electricity
Water in kettle is heated, it is to avoid when the water yield in insulating pot remittance is very few, water temperature rate of change is excessive, water temperature detector unit 40
The change of water temperature cannot in time be detected.
Further, as shown in Fig. 2 insulating pot also includes timing unit 60, control unit 30 also connects with timing unit 60
Connect, control unit 30 is additionally operable to when the water temperature of the transmission of water temperature detector unit 40 is received, record current time timing unit 60
The temporal information of offer, according at least two water temperatures and the corresponding temporal information of each water temperature water temperature rate of change is determined.
Specifically, insulating pot also includes timing unit 60, and timing unit 60 is connected with control unit 30, timing unit 60 to
Control unit 30 provides temporal information, when control unit 30 receives the water temperature of the transmission of water temperature detector unit 40, can be from timing
Unit 60 obtains the moment for receiving water temperature, and control 30 records one-to-one water temperature and moment, and according at least two water temperatures
Determine water temperature rate of change with the corresponding temporal information of each water temperature.
Optionally, timing unit 60 can also be connected with water temperature detector unit 40 so that water temperature detector unit 40 can be according to pre-
If time interval send water temperature to control unit 30, control unit directly two water temperatures continuously receiving of basis can determine water
Warm rate of change.
Further, as shown in Fig. 2 insulating pot also includes filter unit 70, total power switch element 10 and half-power are opened
Close unit 50 to be also connected with one end of filter unit 70 respectively, the other end of filter unit is also connected with heat-generating units 20.
Specifically, total power switch element 10 and half-power switch element 50 are by filter unit 70 and heat-generating units 20
Connection, the abnormal current that filter unit 70 is used in filtering circuit, plays a part of protection circuit.
It is exemplary, filter unit can using resistance, the electronic devices and components series and parallel composition such as inductively or capacitively, such as,
High pass filter unit is composed in parallel using resistance and electric capacity, using resistance and the T-shaped connection of electric capacity, composition low-pass filter unit etc..
Optionally, control unit 30, water temperature detector unit 40 and timing unit 60 pass through voltage conversion circuit directly and city
Power supply connects.
Finally it should be noted that：Various embodiments above is only illustrating the technical solution of the utility model, rather than it is limited
System；Although being described in detail to this utility model with reference to foregoing embodiments, one of ordinary skill in the art should
Understand：It still can modify to the technical scheme described in foregoing embodiments, either to which part or whole
Technical characteristic carries out equivalent；And these are changed or are replaced, the essence for not making appropriate technical solution departs from this practicality newly
The scope of each embodiment technical scheme of type.
Claims (9)
1. a kind of insulating pot, including：The detection of total power switch element (10), heat-generating units (20), control unit (30) and water temperature
Unit (40), it is characterised in that also include：Half-power switch element (50)；Wherein
One end of the total power switch element (10) and one end of the half-power switch element (50) are single with the heating
First (20) connection, the other end of the total power switch element (10) and the other end of the half-power switch element (50) with
Mains supply connects；
Described control unit (30) respectively with the total power switch element (10), the half-power switch element (50) and described
Water temperature detector unit (40) connects, and the water temperature for being detected according to the water temperature detector unit (40) determines water temperature change speed
Rate, according to the water temperature rate of change beating for the total power switch element (10) and half-power switch element (50) is controlled
Open and closure.
2. insulating pot according to claim 1, it is characterised in that the half-power switch element (50) includes：Series connection
Switch (51) and diode (52), the switch (51) is connected with the mains supply, the diode (52) and the heating
Unit (20) connects.
3. insulating pot according to claim 2, it is characterised in that the switch (51) is relay.
4. insulating pot according to claim 1, it is characterised in that the total power switch element (10) is including relay.
5. the insulating pot according to any one of Claims 1-4, it is characterised in that described control unit (30) is additionally operable to
When the water temperature rate of change is less than default rate of change, half-power switch element (50) opening, the total power are controlled
Switch element (10) is closed, so that the heat-generating units (20) are in running order；
Described control unit (30) is additionally operable to when the water temperature rate of change is more than default rate of change, controls the total power
Switch element (10) open, the half-power switch element (50) closure so that the heat-generating units (20) in working order and
Cyclic switching between resting state.
6. the insulating pot according to any one of Claims 1-4, it is characterised in that described control unit (30) is additionally operable to
When the water temperature is higher than preset temperature, total power switch element (10) opening, the half-power switch element (50) are controlled
Closure.
7. the insulating pot according to any one of Claims 1-4, it is characterised in that described control unit (30) is additionally operable to
When receiving heating instructions, half-power switch element (50) closure is controlled.
8. the insulating pot according to any one of Claims 1-4, it is characterised in that also including timing unit (60), the control
Unit (30) processed is also connected with the timing unit (60), and described control unit (30) is additionally operable to receiving the water temperature detection
During the water temperature that unit (40) sends, the temporal information that timing unit (60) described in current time is provided is recorded, according at least two
Water temperature and the corresponding temporal information of each water temperature determine the water temperature rate of change.
9. the insulating pot according to any one of Claims 1-4, it is characterised in that also including filter unit (70) is described complete
Power switch unit (10) and the half-power switch element (50) are also connected with one end of the filter unit (70) respectively, institute
The other end for stating filter unit is also connected with the heat-generating units (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620858226.XU CN206137902U (en) | 2016-08-08 | 2016-08-08 | Electric kettle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620858226.XU CN206137902U (en) | 2016-08-08 | 2016-08-08 | Electric kettle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206137902U true CN206137902U (en) | 2017-05-03 |
Family
ID=58627179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620858226.XU Active CN206137902U (en) | 2016-08-08 | 2016-08-08 | Electric kettle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206137902U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110037563A (en) * | 2018-12-29 | 2019-07-23 | 浙江苏泊尔家电制造有限公司 | Method for heating and controlling, control device, heating component and cooking apparatus |
| CN111096651A (en) * | 2018-10-26 | 2020-05-05 | 佛山市顺德区美的电热电器制造有限公司 | Operation control method, device, cooking appliance and computer readable storage medium |
| CN111297201A (en) * | 2018-03-07 | 2020-06-19 | 佛山市顺德区美的饮水机制造有限公司 | Method and system for determining water temperature change trend of water dispenser and water dispenser |
| CN113647812A (en) * | 2021-08-03 | 2021-11-16 | 珠海格力电器股份有限公司 | Health preserving kettle, heating control method and device thereof, electronic equipment and storage medium |
-
2016
- 2016-08-08 CN CN201620858226.XU patent/CN206137902U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111297201A (en) * | 2018-03-07 | 2020-06-19 | 佛山市顺德区美的饮水机制造有限公司 | Method and system for determining water temperature change trend of water dispenser and water dispenser |
| CN111297201B (en) * | 2018-03-07 | 2021-07-27 | 佛山市顺德区美的饮水机制造有限公司 | Method and system for determining water temperature change trend of water dispenser and water dispenser |
| CN111096651A (en) * | 2018-10-26 | 2020-05-05 | 佛山市顺德区美的电热电器制造有限公司 | Operation control method, device, cooking appliance and computer readable storage medium |
| CN111096651B (en) * | 2018-10-26 | 2021-05-04 | 佛山市顺德区美的电热电器制造有限公司 | Operation control method, device, cooking appliance and computer readable storage medium |
| CN110037563A (en) * | 2018-12-29 | 2019-07-23 | 浙江苏泊尔家电制造有限公司 | Method for heating and controlling, control device, heating component and cooking apparatus |
| CN113647812A (en) * | 2021-08-03 | 2021-11-16 | 珠海格力电器股份有限公司 | Health preserving kettle, heating control method and device thereof, electronic equipment and storage medium |
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