CN112294110B - Temperature display method and device of electric kettle and electric kettle - Google Patents
Temperature display method and device of electric kettle and electric kettle Download PDFInfo
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- CN112294110B CN112294110B CN201910669545.4A CN201910669545A CN112294110B CN 112294110 B CN112294110 B CN 112294110B CN 201910669545 A CN201910669545 A CN 201910669545A CN 112294110 B CN112294110 B CN 112294110B
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- 238000000034 method Methods 0.000 title claims abstract description 44
- 239000007788 liquid Substances 0.000 claims abstract description 72
- 238000010438 heat treatment Methods 0.000 claims abstract description 63
- 239000002918 waste heat Substances 0.000 claims abstract description 27
- 238000001514 detection method Methods 0.000 claims description 13
- 238000004590 computer program Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000009835 boiling Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 206010053615 Thermal burn Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000002265 prevention Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/21—Water-boiling vessels, e.g. kettles
- A47J27/21008—Water-boiling vessels, e.g. kettles electrically heated
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/21—Water-boiling vessels, e.g. kettles
- A47J27/21166—Constructional details or accessories
Abstract
The application discloses an electric kettle and a temperature display method and device thereof. The temperature display method comprises the following steps: before the liquid in the electric kettle is heated to the target temperature, controlling the electric kettle to cut off power and utilizing the waste heat of the heating pipe to continuously heat the liquid; detecting a current actual temperature of the liquid; and if the current actual temperature is greater than or equal to a first preset temperature, controlling the current display temperature to be the initial display temperature by taking the current actual temperature, and accumulating the current display temperature in a preset temperature increment range until the current display temperature is the target temperature. The technical scheme adopts the mode of gradually increasing the current display temperature, so that the current display temperature steadily rises to the target temperature, and the situation that the final display temperature cannot reach the target temperature or exceeds the target temperature due to uncontrollable waste heat of the heating tube is avoided.
Description
Technical Field
The invention relates to the technical field of temperature control of household appliances, in particular to a temperature display method and device of an electric kettle and the electric kettle.
Background
The electric kettle adopts intelligent induction control of steam, and is an appliance with the functions of quick boiling water, automatic power-off for boiling water and dry-heating power-off prevention. Compared with the traditional mechanical kettle, the traditional electric kettle has a plurality of functions, and particularly, the whole water boiling process is more visual when the temperature is displayed by the display screen.
At present, an existing electric kettle is heated by a heating tube, a target temperature is set before heating, then power is cut off in advance when the electric kettle is heated to be close to the target temperature, and water temperature is heated to the target temperature by using waste heat of the heating tube. However, the temperature rise is stopped when the temperature is not yet heated to the target temperature, and the temperature rise is sometimes heated to a temperature exceeding the target temperature, so that the temperature stop at the target temperature cannot be accurately displayed, and the temperature control is not accurately felt to a user.
Disclosure of Invention
In view of this, the embodiment of the application provides a temperature display method and device of an electric kettle, and the electric kettle, which are used for solving the technical problem that users feel inaccurate temperature control due to uncontrollable waste heat of a heating tube when the waste heat of the heating tube is utilized to heat liquid in the prior art.
In one aspect, an embodiment of the present application provides a method for displaying a temperature of an electric kettle, including: before the liquid in the electric kettle is heated to the target temperature, controlling the electric kettle to cut off power and utilizing the waste heat of the heating pipe to continuously heat the liquid; detecting a current actual temperature of the liquid; if the current actual temperature is greater than or equal to a first preset temperature, controlling the current display temperature to be the initial display temperature by taking the current actual temperature, and accumulating the current display temperature in a preset temperature increment range until the current display temperature is the target temperature; wherein the first preset temperature is less than the target temperature.
Optionally, the temperature display method further includes: and if the current actual temperature is greater than the target temperature and less than a second preset temperature, controlling the current display temperature to be the target temperature.
Optionally, the temperature display method further includes: and if the current actual temperature is greater than the second preset temperature, controlling the current display temperature to be the current actual temperature.
Optionally, the temperature display method further includes: and if the current actual temperature is smaller than the first preset temperature, controlling the current display temperature to be the current actual temperature.
Optionally, controlling the current display temperature to be the display temperature starting from the current actual temperature, and accumulating the current display temperature in a preset temperature increment range until the current display temperature is the target temperature includes: controlling the current display temperature to be the display time length when the current actual temperature reaches a preset temperature; accumulating the current display temperature according to the preset temperature increment amplitude, and controlling the current display temperature to be the accumulated current display temperature to reach the preset temperature display duration; and controlling the current display temperature to be the target temperature and reaching the preset temperature display duration.
On the other hand, based on the above method embodiment, the embodiment of the present application further provides a temperature display device of an electric kettle, including: the power-off control module is used for controlling the electric kettle to be powered off and continuously heating the liquid by utilizing the waste heat of the heating pipe before the liquid in the electric kettle is heated to the target temperature; the temperature detection module is used for detecting the current actual temperature of the liquid; the temperature display module is used for controlling the current display temperature to be the initial display temperature by taking the current actual temperature as the initial display temperature if the current actual temperature is detected to be greater than or equal to a first preset temperature by the temperature detection module, and accumulating the current display temperature in a preset temperature increment range until the current display temperature is the target temperature; wherein the first preset temperature is less than the target temperature.
In still another aspect, an embodiment of the present application further provides an electric kettle, including a control processor, a temperature sensor, a temperature display, and a heating tube; the control processor is respectively connected with the temperature sensor, the temperature display and the heating tube; the temperature sensor is used for detecting the current actual temperature of the liquid in the electric kettle, and the temperature display is used for displaying the current display temperature; further comprises: the control processor executes the computer program to execute the temperature display method of the electric kettle.
Compared with the prior art, the technical scheme has at least the following beneficial effects:
according to the temperature display method of the electric kettle, power is cut off in advance before liquid in the electric kettle is heated to the target temperature, the current actual temperature of the liquid is detected in the process of continuously heating the liquid by utilizing the waste heat of the heating pipe, if the current actual temperature is close to the target temperature (namely, is greater than or equal to the first preset temperature), the current actual temperature is taken as the initial display temperature, and the current display temperature is accumulated according to the increment amplitude of the preset temperature until the current display temperature is the target temperature. By adopting the mode of gradually increasing the current display temperature, the situation that the temperature finally displayed possibly cannot reach or exceeds the target temperature due to uncontrollable waste heat of the heating tube can be avoided, and the user can feel that the current display temperature is stably increased to the target temperature by adopting the mode of gradually increasing the current display temperature.
Further, if the current actual temperature is greater than the target temperature but does not exceed the target temperature much (i.e., is less than the second preset temperature), the current display temperature is controlled to be the target temperature. That is, even if it is detected that the residual heat of the heating tube has exceeded the target temperature, the current display temperature is still the target temperature as long as the exceeded temperature is not large, so that the judgment of the actual temperature of the liquid by the user is not affected, and the inaccurate temperature control feeling of the user is avoided.
But if the current actual temperature is much greater than the target temperature (i.e., greater than the second preset temperature), the current display temperature is controlled to be the current actual temperature. Because, if the detected current actual temperature exceeds the target temperature by a large amount, the judgment of the actual temperature of the liquid by the user is affected if the target temperature is still displayed, and adverse effects (such as scalding caused by the fact that the actual temperature of the liquid is too high) are caused.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic flow chart of an embodiment of a temperature display method of an electric kettle according to an embodiment of the present application;
fig. 2 is a schematic flow chart of another embodiment of a temperature display method of an electric kettle according to the embodiment of the present application;
fig. 3 is a schematic flow chart of another embodiment of a temperature display method of an electric kettle according to the embodiment of the present application;
fig. 4 is a schematic flow chart of a specific application example of the temperature display method of the electric kettle provided by the application;
fig. 5 is a schematic structural view of an embodiment of a temperature display device of an electric kettle according to the embodiment of the present application;
fig. 6 is a schematic structural view of an embodiment of an electric kettle provided in an embodiment of the present application.
Detailed Description
For a better understanding of the technical solutions of the present application, embodiments of the present application are described in detail below with reference to the accompanying drawings.
It should be understood that the described embodiments are merely some, but not all, embodiments of the invention. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
Fig. 1 is a schematic flow chart of an embodiment of a temperature display method of an electric kettle according to an embodiment of the present application. Referring to fig. 1, the temperature display method includes the steps of:
102, detecting the current actual temperature of the liquid;
The embodiment is applied to the heating process of liquid in an electric kettle, and in order to fully utilize the waste heat of the heating pipe, the power is cut off in advance before the liquid is heated to the target temperature, and then the current temperature display scene is controlled in the process of continuously heating the liquid by utilizing the waste heat of the heating pipe.
And (3) before the liquid in the electric kettle is heated to the target temperature, controlling the electric kettle to cut off power and utilizing the waste heat of the heating pipe to continuously heat the liquid, as shown in step 101.
Those skilled in the art understand that the electric kettle heats the liquid through the heating tube, and the heating tube needs a period of time from the temperature of the heating tube to the temperature of the liquid (the heating tube heats the liquid), so that the heating tube has a certain hysteresis phenomenon. In this embodiment, a target temperature for heating the liquid is preset, and when the electric kettle heats the liquid for a period of time but not yet heats the liquid to the target temperature, the electric kettle is controlled to be powered off, so that the liquid is continuously heated by using the waste heat of the heating tube. Therefore, on one hand, the waste heat of the heating tube can be fully utilized to save power consumption, and on the other hand, the actual heating temperature exceeding the target temperature due to the hysteresis of heating of the heating tube can be avoided.
In practical application, the time point for controlling the electric kettle to be powered off can be preset according to different modes. For example, after setting the target temperature, a target heating time (i.e., a time required for heating from the temperature before heating to the target temperature, for example, 600 seconds) is determined based on the detected temperature before heating the liquid, and a time point (for example, 500 seconds, i.e., power is turned off when the heating time reaches 500 seconds) at which the electric kettle is controlled to be turned off is set based on the target heating time. For another example, after the target temperature is set, the power-off temperature for controlling the electric kettle to be powered off is set again, for example, the target temperature is 80 degrees, the power-off temperature is 70 degrees, that is, when the liquid is detected to be heated to 70 degrees, the electric kettle is controlled to be powered off.
The current actual temperature of the liquid is detected, as described in step 102.
In practical application, the electric kettle is internally provided with a temperature sensor which can be used for detecting the current practical temperature of liquid in the electric kettle.
In this step, the detection time point for starting to detect the current actual temperature of the liquid may be any time point after the electric kettle is powered off. For example, the current actual temperature of the liquid may be detected after the electric kettle is controlled to be powered off, or may be detected after the liquid is continuously heated for a period of time by using the waste heat of the heating tube.
Unlike the prior art, in this embodiment, when the current actual temperature of the liquid in the electric kettle is detected to be close to the target temperature (i.e., greater than or equal to the first preset temperature), the current actual temperature of the liquid in the electric kettle is not directly displayed, but the current display temperature is displayed according to a preset temperature display rule.
Specifically, the method comprises the following steps:
step 1031, controlling the current display temperature to be the display time period when the current actual temperature reaches a preset temperature;
step 1032, accumulating the current display temperature according to the preset temperature increment range, and controlling the current display temperature to be the accumulated current display temperature to reach the preset temperature display duration;
and 1033, controlling the current display temperature to be the display time length when the target temperature reaches the preset temperature.
In this embodiment, if it is detected that the current actual temperature does not reach the target temperature (for example, the target temperature is 80 degrees) and is greater than or equal to the first preset temperature (for example, the first preset temperature is 60 degrees), the current display temperature is controlled to be the current actual temperature, and the display duration reaches the preset temperature display duration. For example, if the current actual temperature is 65 degrees, the current display temperature is controlled to be 65 degrees, the preset temperature display duration is 1 second, and if the current display temperature is controlled to be 65 degrees, the display duration is 1 second.
Then, the current display temperature is accumulated according to the preset temperature increment. For example, if the preset temperature increment is 1 degree, the current display temperature is incremented by 1 degree (i.e. 66 degrees) based on 65 degrees, and the current display temperature is controlled to be 66 degrees for 1 second. And the like, until the current display temperature is controlled to reach the preset temperature display duration.
That is, the temperature display rule in this embodiment is to use the detected current actual temperature as an initial display temperature, use a preset temperature increment as an accumulated value of the current display temperature each time until the current display temperature is accumulated to the target temperature, and use a display duration of the current display temperature after each accumulation as a preset temperature display duration. By adopting the temperature display rule, the problem that the final displayed temperature possibly cannot reach or exceeds the target temperature due to uncontrollable waste heat of the heating tube can be avoided, and the current displayed temperature of the electric kettle can be perceived to be stably risen to the target temperature by a user.
Further, after the current display temperature is accumulated until the target temperature reaches the preset temperature display duration, the electric kettle enters a standby state, and a standby interface is displayed.
Otherwise, if the current actual temperature is smaller than the first preset temperature, the current display temperature is controlled to be the current actual temperature. That is, if it is detected that the current actual temperature of the liquid in the electric kettle is not close to the target temperature (i.e., is less than the first preset temperature), the current display temperature is continuously controlled to be the current actual temperature. Then, continuously detecting the current actual temperature of the liquid in the electric kettle in the process of continuously heating the liquid by the waste heat of the heating pipe. In this case, the electric kettle is still in the display heating interface.
Fig. 2 is a schematic flow chart of another embodiment of a temperature display method of an electric kettle according to an embodiment of the present application. Referring to fig. 2, the temperature display method includes the steps of:
and 203, if the current actual temperature is greater than the target temperature and less than a second preset temperature, controlling the current display temperature to be the target temperature.
In this embodiment, the implementation process of step 201 and step 202 is similar to that of step 101 and step 102 in the embodiment described in fig. 1, and specific reference may be made to the above embodiment, which is not repeated here.
If the current actual temperature is greater than the target temperature and less than a second preset temperature, the current display temperature is controlled to be the target temperature, as in step 203.
Specifically, the situation described in this step is that if the current actual temperature is greater than the target temperature but not more than the target temperature (i.e. less than the second preset temperature), the current display temperature is controlled to be the target temperature. That is, even if it is detected that the waste heat of the heat generating pipe has heated the liquid beyond the target temperature, the current display temperature is controlled to be the target temperature as long as the temperature beyond is not so large. Therefore, the judgment of the actual temperature of the liquid by the user is not affected, and the inaccurate temperature control feeling is avoided.
Further, after the current display temperature is displayed as the target temperature, the electric kettle enters a standby state, and a standby interface is displayed.
Fig. 3 is a schematic flow chart of another embodiment of a temperature display method of an electric kettle according to an embodiment of the present application. Referring to fig. 3, the temperature display method includes the steps of:
In this embodiment, the implementation process of step 301 and step 302 is similar to that of step 101 and step 102 in the embodiment described in fig. 1, and specific reference may be made to the above embodiment, which is not repeated here.
In step 303, if the current actual temperature is greater than the second preset temperature, the current display temperature is controlled to be the current actual temperature.
Specifically, in the case of the present step, if the current actual temperature is much greater than the target temperature (i.e., greater than the second preset temperature), the current display temperature is controlled to be the current actual temperature. Because, if the detected current actual temperature exceeds the target temperature by a large amount, the judgment of the actual temperature of the liquid by the user is affected if the target temperature is still displayed, adverse effects (for example, scald caused by the fact that the actual temperature of the liquid is too high) are caused.
Further, after the current display temperature is displayed as the current actual temperature, the electric kettle enters a standby state, and a standby interface is displayed.
The method for displaying the temperature of the electric kettle provided by the application is described below with reference to a specific application example.
Fig. 4 is a schematic flow chart of a specific application example of the temperature display method of the electric kettle. In this embodiment, the target temperature is set to 80 degrees, the first preset temperature is set to 77 degrees, the second preset temperature is set to 85 degrees, the increment of the preset temperature is set to 1 degree, and the display duration of the preset temperature is set to 1 second. In fig. 4, T1 is the current actual temperature, T2 is the current display temperature, and T3 is the target temperature.
Referring to fig. 4, the method comprises the steps of:
In the step, the electric kettle is in an electrified state to heat the liquid in the electric kettle.
And 404, stopping heating in advance.
Specifically, before the liquid in the electric kettle is heated to the target temperature, the electric kettle is controlled to be powered off, and the liquid is continuously heated by utilizing the waste heat of the heating pipe.
At this point the heating interface is still displayed and step 405 continues.
Fig. 5 is a schematic structural view of an embodiment of a temperature display device of an electric kettle according to the embodiment of the present application. Referring to fig. 5, the temperature display device 5 includes:
and the power-off control module 51 is used for controlling the electric kettle to power off and continuously heating the liquid by utilizing the waste heat of the heating pipe before the liquid in the electric kettle is heated to the target temperature.
A temperature detection module 52 for detecting a current actual temperature of the liquid.
A temperature display module 53, configured to control a current display temperature to be a starting display temperature with the current actual temperature and accumulate the current display temperature by a preset temperature increment range until the current display temperature is the target temperature if the temperature detection module 52 detects that the current actual temperature is greater than or equal to a first preset temperature; wherein the first preset temperature is less than the target temperature.
The temperature display module 53 is further configured to control the current display temperature to be a display duration when the current actual temperature reaches a preset temperature; accumulating the current display temperature according to the preset temperature increment amplitude, and controlling the current display temperature to be the accumulated current display temperature to reach the preset temperature display duration; and controlling the current display temperature to be the target temperature and reaching the preset temperature display duration.
The temperature display module 53 is further configured to control the current display temperature to be the target temperature if the temperature detection module detects that the current actual temperature is greater than the target temperature and less than a second preset temperature.
The temperature display module 53 is further configured to control the current display temperature to be the current actual temperature if the temperature detection module detects that the current actual temperature is greater than the second preset temperature.
The temperature display module 53 is further configured to control the current display temperature to be the current actual temperature if the temperature detection module 52 detects that the current actual temperature is less than the first preset temperature.
In this embodiment, the specific implementation process of each module may refer to the above method embodiment, and will not be described herein.
Fig. 6 is a schematic structural view of an embodiment of an electric kettle provided in an embodiment of the present application.
Referring to fig. 6, the electric kettle 6 includes: a control processor 61, a temperature sensor 62, a temperature display 63, a heat pipe 64, a memory 65 and a computer program stored on the memory 65 and executable on the control processor 61.
Wherein the control processor 61 is connected with the temperature sensor 62, the temperature display 63 and the heating tube 64, respectively. The temperature sensor 62 is used for detecting the current actual temperature of the liquid in the electric kettle 6, and the temperature display 63 is used for displaying the current display temperature. When the control processor 61 executes the computer program, the temperature display method of the electric kettle provided in the embodiment of the present application is executed.
In summary, according to the temperature display method of the electric kettle provided by the embodiment of the application, in the process of continuously heating the liquid by using the waste heat of the heating tube, the current actual temperature of the liquid is detected, if the current actual temperature approaches the target temperature, the mode of gradually increasing the current display temperature is adopted, so that the situation that the final display temperature possibly cannot reach the target temperature or exceeds the target temperature due to uncontrollable waste heat of the heating tube can be avoided, and the user can feel that the current display temperature steadily rises to the target temperature by adopting the mode of gradually increasing the current display temperature.
The foregoing description of the preferred embodiments of the present invention is not intended to limit the invention to the precise form disclosed, and any modifications, equivalents, improvements and alternatives falling within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. A method for displaying the temperature of an electric kettle, the method comprising:
before the liquid in the electric kettle is heated to the target temperature, controlling the electric kettle to cut off power and utilizing the waste heat of the heating pipe to continuously heat the liquid;
detecting a current actual temperature of the liquid;
if the current actual temperature is greater than or equal to a first preset temperature, controlling the current display temperature to be the initial display temperature by taking the current actual temperature, and accumulating the current display temperature in a preset temperature increment range until the current display temperature is the target temperature; wherein the first preset temperature is less than the target temperature;
controlling the current display temperature to be the initial display temperature by taking the current actual temperature as the initial display temperature, and accumulating the current display temperature in a preset temperature increment range until the current display temperature is the target temperature comprises the following steps:
controlling the current display temperature to be the display time length when the current actual temperature reaches a preset temperature;
accumulating the current display temperature according to the preset temperature increment amplitude, and controlling the current display temperature to be the accumulated current display temperature to reach the preset temperature display duration;
and controlling the current display temperature to be the target temperature and reaching the preset temperature display duration.
2. The method as recited in claim 1, further comprising: and if the current actual temperature is greater than the target temperature and less than a second preset temperature, controlling the current display temperature to be the target temperature.
3. The method as recited in claim 2, further comprising: and if the current actual temperature is greater than the second preset temperature, controlling the current display temperature to be the current actual temperature.
4. The method as recited in claim 1, further comprising: and if the current actual temperature is smaller than the first preset temperature, controlling the current display temperature to be the current actual temperature.
5. A temperature display device for an electric kettle, the device comprising:
the power-off control module is used for controlling the electric kettle to be powered off and continuously heating the liquid by utilizing the waste heat of the heating pipe before the liquid in the electric kettle is heated to the target temperature;
the temperature detection module is used for detecting the current actual temperature of the liquid;
the temperature display module is used for controlling the current display temperature to be the initial display temperature by taking the current actual temperature as the initial display temperature if the current actual temperature is detected to be greater than or equal to a first preset temperature by the temperature detection module, and accumulating the current display temperature in a preset temperature increment range until the current display temperature is the target temperature; wherein the first preset temperature is less than the target temperature;
the temperature display module is further used for controlling the current display temperature to be the display time length when the current actual temperature reaches a preset temperature; accumulating the current display temperature according to the preset temperature increment amplitude, and controlling the current display temperature to be the accumulated current display temperature to reach the preset temperature display duration; and controlling the current display temperature to be the target temperature and reaching the preset temperature display duration.
6. The apparatus of claim 5, wherein the temperature display module is further configured to control the current display temperature to be the target temperature if the temperature detection module detects that the current actual temperature is greater than the target temperature and less than a second preset temperature.
7. The apparatus of claim 6, wherein the temperature display module is further configured to control the current display temperature to be the current actual temperature if the temperature detection module detects that the current actual temperature is greater than the second preset temperature.
8. The apparatus of claim 5, wherein the temperature display module is further configured to control the current display temperature to be the current actual temperature if the temperature detection module detects that the current actual temperature is less than the first preset temperature.
9. An electric kettle is characterized by comprising a control processor, a temperature sensor, a temperature display and a heating tube; the control processor is respectively connected with the temperature sensor, the temperature display and the heating tube; the temperature sensor is used for detecting the current actual temperature of the liquid in the electric kettle, and the temperature display is used for displaying the current display temperature; further comprises: a memory and a computer program stored in the memory and operable on the control processor, the control processor executing the computer program to perform the method for displaying the temperature of an electric kettle according to any one of claims 1 to 4.
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| CN201910669545.4A CN112294110B (en) | 2019-07-24 | 2019-07-24 | Temperature display method and device of electric kettle and electric kettle |
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| CN201910669545.4A CN112294110B (en) | 2019-07-24 | 2019-07-24 | Temperature display method and device of electric kettle and electric kettle |
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| CN113983684A (en) * | 2021-11-29 | 2022-01-28 | 广东万和热能科技有限公司 | Electric water heater and control method thereof |
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