CN110613325B - Heating control method and system of pressure cooking appliance and pressure cooking appliance - Google Patents
Heating control method and system of pressure cooking appliance and pressure cooking appliance Download PDFInfo
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- CN110613325B CN110613325B CN201810636999.7A CN201810636999A CN110613325B CN 110613325 B CN110613325 B CN 110613325B CN 201810636999 A CN201810636999 A CN 201810636999A CN 110613325 B CN110613325 B CN 110613325B
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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
- A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor
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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
- A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor
- A47J27/0802—Control mechanisms for pressure-cookers
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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
- A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor
- A47J27/086—Pressure-cookers; Lids or locking devices specially adapted therefor with built-in heating means
Abstract
The embodiment of the invention provides a heating control method and system of a pressure cooking appliance and the pressure cooking appliance, and belongs to the technical field of kitchen electric control. The system comprises: the altitude detection device is used for detecting the air pressure of the location of the pressure cooking appliance and obtaining the current altitude according to the air pressure; temperature detection means for detecting a temperature inside the pressure cooking appliance; a heating device for heating the food material in the pressure cooking appliance; and a microcontroller for: acquiring the current altitude detected by an altitude detection device; obtaining the corresponding water boiling point temperature according to the current altitude; obtaining a target temperature according to the water boiling temperature and a preset target pressure; and controlling the heating device to heat according to the water boiling point temperature, the target temperature and the temperature detected by the acquired temperature detection device. The embodiment of the invention is suitable for cooking food materials by pressure cooking appliances with different altitudes.
Description
Technical Field
The invention relates to the technical field of kitchen electric control, in particular to a heating control method and system of a pressure cooking appliance and the pressure cooking appliance.
Background
The conventional electric pressure cooker generally utilizes the positive correlation between pressure and temperature, adopts a temperature sensor and controls the pressure according to the temperature.
Although the temperature and the pressure in the electric pressure cooker have positive correlation, because the altitude of the place where the product is used is different, when the same food is cooked, the temperature required in the high altitude area is lower, the pressure in the corresponding electric pressure cooker is lower, and the temperature required in the low altitude area is higher, the pressure in the corresponding electric pressure cooker is higher. In the prior art, the pressure in the electric pressure cooker is controlled by fixing the temperature, so that the problems that the product is over-pressurized due to overhigh pressure in a high altitude area and the pressure is insufficient due to overlow pressure in a low altitude area can occur.
Disclosure of Invention
The embodiment of the invention aims to provide a heating control method and system of a pressure cooking appliance and the pressure cooking appliance, which solve the problem that in the prior art, the control pressure of the pressure cooking appliance in different altitude areas cannot meet the cooking requirement due to fixed temperature cooking, and realize cooking food according to different altitude conditions.
In order to achieve the above object, an embodiment of the present invention provides a heating control system of a pressure cooking appliance, the system including: the altitude detection device is used for detecting the air pressure of the location of the pressure cooking appliance and obtaining the current altitude according to the air pressure; temperature detection means for detecting a temperature inside the pressure cooking appliance; a heating device for heating the food material in the pressure cooking appliance; and a microcontroller for: acquiring the current altitude detected by the altitude detection device; obtaining the corresponding water boiling point temperature according to the current altitude; obtaining a target temperature according to the water boiling temperature and a preset target pressure; and controlling the heating device to heat according to the water boiling point temperature, the target temperature and the acquired temperature detected by the temperature detection device.
Further, the obtaining the corresponding water boiling point temperature according to the current altitude comprises: and obtaining the water boiling point temperature corresponding to the current altitude according to T0-100-k h, wherein T0 is the water boiling point temperature, k is a constant, h is the current altitude, and k is more than or equal to 0.002 and less than or equal to 0.004.
Further, the system further comprises a storage device for storing a correspondence between altitude and water boiling point temperature; the obtaining of the corresponding water boiling point temperature according to the current altitude comprises: and inquiring the corresponding relation between the altitude and the water boiling point temperature stored in the storage device according to the current altitude to obtain the water boiling point temperature corresponding to the current altitude.
Further, obtaining the target temperature according to the water boiling temperature and a preset target pressure comprises: and obtaining the target temperature according to the ratio Ts to T0+ Ps/m, wherein Ts is the target temperature, T0 is the water boiling point temperature, Ps is the preset target pressure, and m is a correlation coefficient of pressure and temperature, and m is more than or equal to 4 and less than or equal to 6.
Further, the controlling the heating device to heat according to the water boiling temperature, the target temperature and the obtained temperature detected by the temperature detection device includes: controlling the heating device to heat food materials in the pressure cooking appliance at a first heating power; when the temperature detected by the temperature detection device is higher than the water boiling point temperature and lower than the target temperature, controlling the heating device to heat the food materials in the pressure cooking appliance at a second heating power; and when the temperature detected by the temperature detection device is greater than or equal to the target temperature, controlling the heating device to heat the food materials in the pressure cooking appliance by third heating power, wherein the first heating power, the second heating power and the third heating power are sequentially decreased in size.
Correspondingly, the embodiment of the invention also provides a heating control method of the pressure cooking appliance, which comprises the following steps: acquiring the current altitude of the location of the pressure cooking appliance through an altitude detection device; obtaining the corresponding water boiling point temperature according to the current altitude; obtaining a target temperature according to the water boiling temperature and a preset target pressure; and controlling the food in the pressure cooking appliance to be heated according to the water boiling point temperature, the target temperature and the temperature in the pressure cooking appliance.
Further, the obtaining the corresponding water boiling point temperature according to the current altitude comprises: and obtaining the water boiling point temperature corresponding to the current altitude according to T0-100-k h, wherein T0 is the water boiling point temperature, k is a constant, h is the current altitude, and k is more than or equal to 0.002 and less than or equal to 0.004.
Further, the obtaining the corresponding water boiling point temperature according to the current altitude comprises: and inquiring the corresponding relation between the locally stored altitude and the water boiling point temperature according to the current altitude to obtain the water boiling point temperature corresponding to the current altitude.
Further, obtaining the target temperature according to the water boiling temperature and a preset target pressure comprises: and obtaining the target temperature according to the ratio Ts to T0+ Ps/m, wherein Ts is the target temperature, T0 is the water boiling point temperature, Ps is the preset target pressure, and m is a correlation coefficient of pressure and temperature, and m is more than or equal to 4 and less than or equal to 6.
Further, the controlling food materials in the pressure cooking appliance to be heated according to the water boiling temperature, the target temperature and the temperature in the pressure cooking appliance comprises: controlling food materials in the pressure cooking appliance to be heated at a first heating power; judging whether the temperature in the pressure cooking appliance is higher than the water boiling temperature and lower than or equal to the target temperature; when the temperature in the pressure cooking appliance is higher than the boiling temperature of water and lower than or equal to the target temperature, controlling food materials in the pressure cooking appliance to be heated by second heating power; and when the temperature in the pressure cooking appliance is higher than the target temperature, controlling the food materials in the pressure cooking appliance to be heated by using third heating power, wherein the first heating power, the second heating power and the third heating power are sequentially decreased in size.
Correspondingly, the embodiment of the invention also provides a pressure cooking appliance, which comprises the heating control system of the pressure cooking appliance.
According to the technical scheme, the altitude detection device is used for obtaining the current altitude of the location of the pressure cooking appliance, obtaining the corresponding water boiling point temperature according to the current altitude, obtaining the target temperature by the water boiling point temperature and the preset target pressure, and controlling the heating device to heat according to the water boiling point temperature, the target temperature and the obtained temperature detected by the temperature detection device. The embodiment of the invention solves the problem that the control pressure of the pressure cooking appliance in different altitude areas can not meet the cooking requirement due to the fixed temperature cooking, and realizes the flexible cooking of food materials according to different altitude.
Additional features and advantages of embodiments of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention without limiting the embodiments of the invention. In the drawings:
fig. 1 is a schematic structural diagram of a heating control system of a pressure cooking appliance according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a heating control system of another pressure cooking appliance according to an embodiment of the present invention;
fig. 3 is a schematic flow chart of a heating control method of a pressure cooking appliance according to an embodiment of the present invention;
fig. 4 is a schematic flow chart of another heating control method for a pressure cooking appliance according to an embodiment of the present invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration and explanation only, not limitation.
The principle of the pressure cooking utensil is that the physical phenomenon that the boiling point of liquid can be improved under higher air pressure actually applies pressure to water, so that the water can reach higher temperature without boiling, a high-temperature and high-pressure environment is formed in the utensil, and the efficiency of stewing food is accelerated. However, in the prior art, the control method for the pressure cooking appliance is preset fixed temperature, and cannot be adjusted according to different regions. Especially for areas with different altitudes, the corresponding atmospheric pressures are different, so that the boiling points of water are different according to the positive correlation between the atmospheric pressure and the temperature. If only depending on the same preset temperature to cook, the food cooked in different altitude areas will have different taste, and the phenomena that the food is over-pressurized and over-rotten in high altitude areas and the food is not cooked in low altitude areas because the pressure is too low will occur. Embodiments of the present invention have been made in view of the above problems.
Fig. 1 is a schematic structural diagram of a heating control system of a pressure cooking appliance according to an embodiment of the present invention. As shown in fig. 1, the system includes: an altitude detection device 11, configured to detect an air pressure at a location where the pressure cooking appliance is located, and obtain a current altitude according to the air pressure; temperature detection means 12 for detecting a temperature inside the pressure cooking appliance; a heating device 13 for heating the food material in the pressure cooking appliance; and a microcontroller 14 for: acquiring the current altitude detected by the altitude detection device 11; obtaining the corresponding water boiling point temperature according to the current altitude; obtaining a target temperature according to the water boiling temperature and a preset target pressure; and controlling the heating device 13 to heat according to the water boiling point temperature, the target temperature and the acquired temperature detected by the temperature detection device 12.
The altitude detection device can be directly welded on a circuit board and is connected with the microcontroller through a circuit on the circuit board, and also can be installed on the pressure cooking appliance body and is connected with the microcontroller through a connecting wire, but the altitude detection device is directly communicated with the external atmospheric pressure, so that the altitude detection device can accurately measure the atmospheric pressure where the pressure cooking appliance is located, and the current altitude is obtained according to the atmospheric pressure.
When the corresponding water boiling point temperature is obtained according to the current altitude, the water boiling point temperature corresponding to the current altitude may be obtained by calculation using a formula T0-100-k h, where T0 is the water boiling point temperature, k is a constant, h is the current altitude, and k is 0.002-0.004.
When the corresponding water boiling point temperature is obtained according to the current altitude, the water boiling point temperature corresponding to the current altitude may also be obtained according to the current altitude through a correspondence between the altitude and the water boiling point temperature stored in the storage device. For example, as shown in fig. 2, the system further includes a storage device 21 for storing a correspondence between the altitude and the water boiling point temperature.
When the target temperature is obtained according to the water boiling point temperature and a preset target pressure, the target temperature can be obtained according to the condition that Ts is T0+ Ps/m, wherein Ts is the target temperature, T0 is the water boiling point temperature, Ps is the preset target pressure, and m is a correlation coefficient of pressure and temperature, wherein m is more than or equal to 4 and less than or equal to 6.
In the above embodiment, when the same pressure cooking appliance is used at different altitudes, the current altitude h detected by the altitude detection device is different, so that the corresponding water boiling point temperature T0 is also different, and the corresponding target temperature Ts ═ T0+ Ps/m is also different between the water boiling point temperature T0 and the preset target pressure Ps, so that the problem of different control pressures caused by different altitudes of the pressure cooking appliance when a fixed pressure control temperature point is set is effectively solved. According to the embodiment of the invention, flexible cooking of food materials can be realized for different altitudes.
In addition, in an embodiment of the present invention, when the microcontroller controls the heating device to heat according to the water boiling point temperature, the target temperature, and the acquired temperature detected by the temperature detection device, the microcontroller may control the heating device by:
controlling the heating device to heat food materials in the pressure cooking appliance at a first heating power;
when the temperature detected by the temperature detection device is higher than the water boiling point temperature and lower than the target temperature, controlling the heating device to heat the food materials in the pressure cooking appliance at a second heating power; and
when the temperature detected by the temperature detection device is greater than or equal to the target temperature, controlling the heating device to heat the food materials in the pressure cooking appliance at a third heating power,
wherein the first heating power, the second heating power and the third heating power are sequentially decreased in magnitude.
In this embodiment, the food in the pressure cooking appliance can be heated in stages by the water boiling point temperature and the target temperature. That is, before the temperature detected by the temperature detection device does not reach the water boiling point temperature, the food in the pressure cooking appliance is heated by the first heating power, and the first heating power can be the maximum heating power. After the temperature detected by the temperature detection device reaches the water boiling point temperature and before the target temperature is reached, the heating device is controlled to heat the food materials in the pressure cooking appliance by second heating power, and the second heating power is smaller than the first heating power. After the temperature detected by the temperature detection device reaches the target temperature, controlling the heating device to heat the food materials in the pressure cooking appliance with third heating power, wherein the third heating power is smaller than the second heating power. In addition, the third heating power may be zero, that is, the heating device is turned off, and the heating of the food materials in the pressure cooking appliance is stopped.
The embodiment of the invention solves the problem that the control pressure of the pressure cooking appliance in different altitude areas can not meet the cooking requirement due to the fixed temperature cooking, realizes the flexible cooking of food materials according to different altitude heights, and can also realize the sectional heating of the food materials in the pressure cooking appliance according to the water boiling point temperature and the target temperature.
Correspondingly, fig. 3 is a schematic flow chart of a heating control method of a pressure cooking appliance according to an embodiment of the present invention. As shown in fig. 3, the method comprises the steps of:
and 304, controlling the food in the pressure cooking appliance to be heated according to the water boiling point temperature, the target temperature and the temperature in the pressure cooking appliance.
And detecting the air pressure of the location of the pressure cooking appliance through the altitude detection device, and obtaining the current altitude according to the air pressure.
For step 302, the corresponding water boiling point temperature is obtained according to the current altitude, and the water boiling point temperature corresponding to the current altitude may be obtained according to T0 ═ 100-k × h, where T0 is the water boiling point temperature, k is a constant, and h is the current altitude (in meters), where k is greater than or equal to 0.002 and less than or equal to 0.004.
For another implementation of step 302, the corresponding relationship between the locally stored altitude and the water boiling point temperature may be queried according to the current altitude to obtain the water boiling point temperature corresponding to the current altitude.
In step 303, obtaining a target temperature according to the water boiling temperature and a preset target pressure includes: and obtaining the target temperature according to the ratio Ts to T0+ Ps/m, wherein Ts is the target temperature, T0 is the water boiling point temperature, Ps is the preset target pressure, and m is a correlation coefficient of pressure and temperature, and m is more than or equal to 4 and less than or equal to 6.
In step 304, controlling the ingredients in the pressure cooking appliance to heat according to the water boiling point temperature, the target temperature and the temperature in the pressure cooking appliance comprises: controlling food materials in the pressure cooking appliance to be heated at a first heating power; judging whether the temperature in the pressure cooking appliance is higher than the water boiling temperature and lower than or equal to the target temperature; when the temperature in the pressure cooking appliance is higher than the boiling temperature of water and lower than or equal to the target temperature, controlling food materials in the pressure cooking appliance to be heated by second heating power; and when the temperature in the pressure cooking appliance is higher than the target temperature, controlling the food materials in the pressure cooking appliance to be heated by using third heating power, wherein the first heating power, the second heating power and the third heating power are sequentially decreased in size.
Namely, the food materials in the pressure cooking appliance can be heated in a segmented manner through the water boiling point temperature and the target temperature. The first heating power may be the maximum heating power, and the third heating power may be zero, that is, the heating device is turned off, and the food materials in the pressure cooking appliance are stopped being heated.
For a better understanding of the embodiments of the present invention, fig. 4 shows a flow chart of a heating control method of a pressure cooking appliance. As shown in fig. 4, the method comprises the steps of:
and 408, controlling the food materials in the pressure cooking appliance to be heated by using the third heating power.
The embodiment of the invention solves the problem that the control pressure of the pressure cooking appliance in different altitude areas can not meet the cooking requirement due to the fixed temperature cooking, realizes the flexible cooking of food materials according to different altitude heights, and can also realize the sectional heating of the food materials in the pressure cooking appliance according to the water boiling point temperature and the target temperature.
Correspondingly, the embodiment of the invention also provides a pressure cooking appliance, which comprises the heating control system of the pressure cooking appliance.
Although the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the embodiments of the present invention are not limited to the details of the above embodiments, and various simple modifications can be made to the technical solutions of the embodiments of the present invention within the technical idea of the embodiments of the present invention, and the simple modifications all belong to the protection scope of the embodiments of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the embodiments of the present invention do not describe every possible combination.
Those skilled in the art will understand that all or part of the steps in the method according to the above embodiments may be implemented by a program, which is stored in a storage medium and includes several instructions to enable a single chip, a chip, or a processor (processor) to execute all or part of the steps in the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In addition, any combination of various different implementation manners of the embodiments of the present invention is also possible, and the embodiments of the present invention should be considered as disclosed in the embodiments of the present invention as long as the combination does not depart from the spirit of the embodiments of the present invention.
Claims (9)
1. A heating control system of a pressure cooking appliance, the system comprising:
the altitude detection device is used for detecting the air pressure of the location of the pressure cooking appliance and obtaining the current altitude according to the air pressure;
temperature detection means for detecting a temperature inside the pressure cooking appliance;
a heating device for heating the food material in the pressure cooking appliance; and
a microcontroller for:
acquiring the current altitude detected by the altitude detection device;
obtaining the corresponding water boiling point temperature according to the current altitude;
obtaining a target temperature according to the water boiling temperature and a preset target pressure; and
controlling the heating device to heat according to the water boiling point temperature, the target temperature and the acquired temperature detected by the temperature detection device,
wherein the controlling the heating device to heat according to the water boiling point temperature, the target temperature and the obtained temperature detected by the temperature detection device comprises:
controlling the heating device to heat food materials in the pressure cooking appliance at a first heating power;
when the temperature detected by the temperature detection device is higher than the water boiling point temperature and lower than the target temperature, controlling the heating device to heat the food materials in the pressure cooking appliance at a second heating power; and
when the temperature detected by the temperature detection device is greater than or equal to the target temperature, controlling the heating device to heat the food materials in the pressure cooking appliance at a third heating power,
wherein the first heating power, the second heating power and the third heating power are sequentially decreased in magnitude.
2. The system of claim 1, wherein said deriving a corresponding water boiling temperature from said current altitude comprises:
and obtaining the water boiling point temperature corresponding to the current altitude according to T0-100-k h, wherein T0 is the water boiling point temperature, k is a constant, h is the current altitude, and k is more than or equal to 0.002 and less than or equal to 0.004.
3. The system of claim 1,
the system further comprises a storage device for storing a correspondence between altitude and water boiling point temperature;
the obtaining of the corresponding water boiling point temperature according to the current altitude comprises: and inquiring the corresponding relation between the altitude and the water boiling point temperature stored in the storage device according to the current altitude to obtain the water boiling point temperature corresponding to the current altitude.
4. The system of claim 1, wherein the deriving a target temperature from the water boiling temperature and a preset target pressure comprises:
and obtaining the target temperature according to the ratio Ts to T0+ Ps/m, wherein Ts is the target temperature, T0 is the water boiling point temperature, Ps is the preset target pressure, and m is a correlation coefficient of pressure and temperature, and m is more than or equal to 4 and less than or equal to 6.
5. A heating control method of a pressure cooking appliance, the method comprising:
acquiring the current altitude of the location of the pressure cooking appliance through an altitude detection device;
obtaining the corresponding water boiling point temperature according to the current altitude;
obtaining a target temperature according to the water boiling temperature and a preset target pressure; and
controlling the food in the pressure cooking appliance to heat according to the water boiling point temperature, the target temperature and the temperature in the pressure cooking appliance,
wherein the controlling of the ingredients in the pressure cooking appliance to heat according to the water boiling temperature, the target temperature and the temperature in the pressure cooking appliance comprises:
controlling food materials in the pressure cooking appliance to be heated at a first heating power;
judging whether the temperature in the pressure cooking appliance is higher than the water boiling temperature and lower than or equal to the target temperature;
when the temperature in the pressure cooking appliance is higher than the boiling temperature of water and lower than or equal to the target temperature, controlling food materials in the pressure cooking appliance to be heated by second heating power; and
when the temperature in the pressure cooking appliance is higher than the target temperature, controlling the food in the pressure cooking appliance to be heated at a third heating power,
wherein the first heating power, the second heating power and the third heating power are sequentially decreased in magnitude.
6. The method of claim 5, wherein said deriving a corresponding water boiling temperature from said current altitude comprises:
and obtaining the water boiling point temperature corresponding to the current altitude according to T0-100-k h, wherein T0 is the water boiling point temperature, k is a constant, h is the current altitude, and k is more than or equal to 0.002 and less than or equal to 0.004.
7. The method of claim 5, wherein said deriving a corresponding water boiling temperature from said current altitude comprises:
and inquiring the corresponding relation between the locally stored altitude and the water boiling point temperature according to the current altitude to obtain the water boiling point temperature corresponding to the current altitude.
8. The method of claim 5, wherein obtaining the target temperature from the water boiling temperature and a preset target pressure comprises:
and obtaining the target temperature according to the ratio Ts to T0+ Ps/m, wherein Ts is the target temperature, T0 is the water boiling point temperature, Ps is the preset target pressure, and m is a correlation coefficient of pressure and temperature, and m is more than or equal to 4 and less than or equal to 6.
9. Pressure cooking appliance, characterized in that it comprises a heating control system of a pressure cooking appliance according to any one of claims 1 to 4.
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| CN201810636999.7A CN110613325B (en) | 2018-06-20 | 2018-06-20 | Heating control method and system of pressure cooking appliance and pressure cooking appliance |
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| CN201810636999.7A CN110613325B (en) | 2018-06-20 | 2018-06-20 | Heating control method and system of pressure cooking appliance and pressure cooking appliance |
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| KR20110037012A (en) * | 2009-10-05 | 2011-04-13 | 박준국 | Pressure increased pressure cooker |
| CN103989393A (en) * | 2013-02-20 | 2014-08-20 | 广东天际电器股份有限公司 | Electric cooking appliance applicable to different altitudes and control method thereof |
| CN105865410A (en) * | 2015-01-19 | 2016-08-17 | 佛山市顺德区美的电热电器制造有限公司 | Altitude height detection method used for cooking utensils, apparatus thereof and cooking utensils |
| CN105928210A (en) * | 2016-04-28 | 2016-09-07 | 珠海格力电器股份有限公司 | Control method and device for water heating device and water heating device |
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| KR20110037012A (en) * | 2009-10-05 | 2011-04-13 | 박준국 | Pressure increased pressure cooker |
| CN103989393A (en) * | 2013-02-20 | 2014-08-20 | 广东天际电器股份有限公司 | Electric cooking appliance applicable to different altitudes and control method thereof |
| CN105865410A (en) * | 2015-01-19 | 2016-08-17 | 佛山市顺德区美的电热电器制造有限公司 | Altitude height detection method used for cooking utensils, apparatus thereof and cooking utensils |
| CN105928210A (en) * | 2016-04-28 | 2016-09-07 | 珠海格力电器股份有限公司 | Control method and device for water heating device and water heating device |
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