CN107157316B - Liquid heating device, electric hot water bottle and dry heating prevention control method thereof - Google Patents
Liquid heating device, electric hot water bottle and dry heating prevention control method thereof Download PDFInfo
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- CN107157316B CN107157316B CN201610127731.1A CN201610127731A CN107157316B CN 107157316 B CN107157316 B CN 107157316B CN 201610127731 A CN201610127731 A CN 201610127731A CN 107157316 B CN107157316 B CN 107157316B
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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
- A47J27/21058—Control devices to avoid overheating, i.e. "dry" boiling, or to detect boiling of the water
- A47J27/21083—Control devices to avoid overheating, i.e. "dry" boiling, or to detect boiling of the water with variable operating parameters, e.g. temperature or boiling period
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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
- A47J27/21158—Devices to detect overheating or boiling with a single control element or unit
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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
- A47J36/00—Parts, details or accessories of cooking-vessels
Abstract
The invention relates to a dry burning prevention control method of a liquid heating device. The method comprises the following steps that a temperature sensor detects the temperature of the inner container liquid in real time, then the detected temperature of the inner container liquid is transmitted to a control unit, the control unit calculates the temperature change rate of the inner container liquid according to the temperature of the inner container liquid detected by the temperature sensor, the control unit obtains the working state of the heating body, and the control unit obtains the corresponding preset temperature change rate in the corresponding state according to the obtained working state, and when the temperature change rate of the inner container liquid calculated by the control unit is larger than or equal to the preset temperature change rate, the heating body is controlled to stop working. The invention can effectively prevent the liquid heating device from dry burning under each state. The invention also provides a liquid heating device and an electric hot water bottle.
Description
Technical Field
The invention relates to the technical field of liquid heating, in particular to a liquid heating device, an electric hot water bottle, a liquid heating device and an anti-dry heating control method of the electric hot water bottle.
Background
In the prior art, some liquid heaters without a water pump can not automatically discharge water, and the whole container is lifted every time water is poured. Therefore, some liquid heaters with electric water pumps appear, in order to prevent the liquid heater from dry burning (for example, the electric water bottle works for a long time and is easy to appear dry burning), in the prior art, the water outlet of the inner container is arranged to be higher than the bottom surface of the inner container, so that although the dry burning phenomenon can be prevented, a part of water in the inner container can not be pumped out all the time to be discharged to form residual water, and a user is required to lift the whole machine to pour the water, so that the operation is troublesome.
Disclosure of Invention
The invention aims to solve the technical problem of providing a liquid heating device, an electric hot water bottle, a liquid heating device and an anti-dry heating control method of the electric hot water bottle aiming at the defects of the prior art.
The invention provides a dry heating prevention control method of a liquid heating device, which comprises a liner, a heating body, a temperature sensor and a control unit, wherein the temperature sensor detects the temperature of the liner liquid in real time, then transmits the detected temperature of the liner liquid to the control unit, the control unit calculates the temperature change rate of the liner liquid according to the temperature of the liner liquid detected by the temperature sensor, the control unit obtains the working state of the heating body, and adjusts the corresponding preset temperature change rate under the corresponding state according to the obtained working state, and when the temperature change rate of the liner liquid calculated by the control unit is greater than or equal to the preset temperature change rate, the heating body is controlled to stop working.
The beneficial effects of the invention are as follows: according to the invention, the temperature sensor detects the temperature of the inner container liquid in real time, then the detected temperature of the inner container liquid is transmitted to the control unit, the control unit calculates the temperature change rate of the inner container liquid according to the temperature of the inner container liquid detected by the temperature sensor, the control unit obtains the working state of the heating element, and the control unit invokes the corresponding preset temperature change rate in the corresponding state according to the obtained working state, when the calculated temperature change rate is greater than or equal to the preset temperature change rate, the heating element is controlled to stop working, and the phenomenon of dry burning of the liquid heating device in each state can be effectively prevented.
On the basis of the technical scheme, the invention can be improved as follows.
Further, the working states of the heating element comprise a heating state, a heat preservation state and a stop working state;
when the heating body is in a heating state, the control unit invokes a first preset temperature change rate V1 in the state, and when the temperature change rate of the liner liquid calculated by the control unit is greater than or equal to the first preset temperature change rate V1 in the state, the control unit controls the heating body to stop working;
when the heating element is in a heat preservation state, the control unit invokes a second preset temperature change rate V2 in the state, and when the temperature change rate of the liner liquid calculated by the control unit is greater than or equal to the second preset temperature change rate V2 in the state, the control unit controls the heating element to stop working;
when the heating element is in a stop working state, the control unit invokes a third preset temperature change rate V3 in the state, and when the temperature change rate of the liner liquid calculated by the control unit is greater than or equal to the third preset temperature change rate V3 in the state, the control unit controls the heating element to stop working and does not control the heating element to execute any instruction.
The beneficial effects of adopting the further scheme are as follows: the temperature change rate preset value of the liquid heating device in different states is set, the calculated value is compared with the preset value, whether the liquid quantity in the liner in each state is too small or not is accurately judged in real time, the phenomenon of dry combustion is easy to occur or not is achieved, and under the condition that the conditions are met, the heating body is timely controlled to stop working, and the phenomenon of dry combustion is avoided.
Further, the liquid heating device further comprises an electric water pump, the control unit preferentially detects whether the electric water pump of the liquid heating device is started, if so, the heating body of the liquid heating device is controlled to stop working, and if the electric water pump stops working, the heating body is controlled to recover to the state before the electric water pump is started.
The beneficial effects of adopting the further scheme are as follows: the electric water pump is checked to be working or not preferentially, if the electric water pump is working, the heating body is controlled to be not working, and the problems that when the electric water pump pumps water, the heating body is heated simultaneously to generate bubbles to block the electric water pump, so that water is not smooth, or when the water is pumped, the water quantity in the inner container is pumped down to a low water level, and dry combustion phenomenon occurs are solved.
Further, the liquid heating device further comprises a control panel, a child lock key or a safety lock key is arranged on the control panel, when the starting of the electric water pump is detected, the state of the child lock key or the safety lock key of the liquid heating device is detected, when the electric water pump is in an unlocking state, the heating body is controlled to stop working, the electric water pump is controlled to start, and water is discharged from the liquid heating device; when the child lock key or the safety lock key is locked, the water outlet function is locked, the electric water pump stops working, and the heating body is controlled to recover to the state before the electric water pump is started.
The beneficial effects of adopting the further scheme are as follows: the liquid heating device further comprises a control panel, the control panel is provided with a child lock key or a safety lock key, the use safety of the product can be effectively guaranteed, before the electric water pump is utilized for pumping water, the child lock key or the safety lock key is required to be pressed firstly for unlocking, the heating body stops working, the water outlet function can be started, when the child lock key or the safety lock key is locked, the water outlet function is locked, the heating body is restored to the state before unlocking, the dry burning phenomenon is effectively prevented, and the use safety of the product is improved.
Further, the state before the electric water pump of the heating body is started comprises a heating state, a heat preservation state and a working stop state.
The beneficial effects of adopting the further scheme are as follows: the heating device comprises a plurality of functional states such as heating, heat preservation, natural cooling and the like, so that the user experience of the product is improved; and no matter what state the heating body is before the electric water pump is started, only the electric water pump is started, and the heating body stops working; after the electric water pump stops working, the heating body is restored to the state before the electric water pump is started, and the intelligent degree of the product is improved.
In order to achieve the above purpose, the invention also provides a control method for preventing the electric thermos bottle from being burned, which comprises the control method for preventing the liquid heating device from being burned.
The beneficial effects of the invention are as follows: the control method for preventing the electric hot water bottle from being dried is realized by the control method for preventing the liquid heating device from being dried, and the phenomenon of the electric hot water bottle from being dried can be effectively prevented.
In order to achieve the above purpose, the invention provides a liquid heating device, which adopts the method of the technical proposal to realize dry burning prevention control, and comprises an inner container, a heating body, a temperature sensor and a control unit, wherein the temperature sensor is connected with the control unit, and the control unit is connected with the heating body.
The beneficial effects of the invention are as follows: according to the invention, the temperature sensor detects the temperature of the inner container liquid in real time, then the detected temperature of the inner container liquid is transmitted to the control unit, the control unit calculates the temperature change rate of the inner container liquid according to the temperature of the inner container liquid detected by the temperature sensor, the control unit obtains the working state of the heating element, and the control unit invokes the corresponding preset temperature change rate in the corresponding state according to the obtained working state, when the calculated temperature change rate is greater than or equal to the preset temperature change rate, the heating element is controlled to stop working, so that the liquid heating device can be effectively prevented from dry burning in all states.
Further, above-mentioned technical scheme still includes electric water pump, electric water pump and temperature sensor are connected with the control unit, the inner bag bottom is equipped with the inner bag outlet, the inner bag outlet is connected with electric water pump through the drain pipe, electric water pump passes through the drain pipe and connects liquid heating device outlet.
The beneficial effects of adopting the further scheme are as follows: the liquid heating device is provided with the electric water pump, so that water can be automatically discharged, and the whole device does not need to be lifted up every time water is poured.
Further, the water outlet of the inner container is flush with or lower than the bottom surface of the inner container.
The beneficial effects of adopting the further scheme are as follows: the water outlet of the inner container is flush with or lower than the bottom surface of the inner container, the water outlet of the inner container is connected with the electric water pump through the water outlet pipe, the electric water pump is connected with the water outlet of the liquid heating device through the water outlet pipe, and water in the inner container is discharged through the electric water pump.
Further, the bottom of the inner container is an inner container bottom disc surface, the inner container bottom disc surface is provided with an inner container bottom disc lowest surface, the inner container bottom disc lowest surface is in transition connection with the inner container bottom disc surface curved surface, and the inner container bottom disc lowest surface is provided with an inner container water outlet.
The beneficial effects of adopting the further scheme are as follows: the liner bottom dish surface is provided with a liner bottom dish lowest surface with a certain area, the liner bottom dish lowest surface is in transition connection with the liner bottom dish surface curved surface, and the liner bottom dish lowest surface is provided with a liner water outlet; the water outlet of the inner container is lower than the bottom surface of the inner container, and the residual water in the inner container can be timely discharged when the residual water needs to be emptied.
Further, a water outlet net cover is arranged at the water outlet of the liner.
The beneficial effects of adopting the further scheme are as follows: the water outlet net cover is arranged at the water outlet of the inner container, so that the water pump is effectively prevented from being blocked due to the fact that scale in the inner container enters the electric water pump.
In order to achieve the above purpose, the invention also provides an electric thermos bottle, which comprises the liquid heating device.
The beneficial effects of the invention are as follows: the electric hot water bottle is a liquid heating container, compares in electric hot water bottle main difference and has: 1. the electric water bottle is provided with an electric water pump, can automatically discharge water, and does not need to lift the whole kettle body when pouring water each time; 2. the electric thermos bottle can keep warm for a long time and has large capacity, so that a user can obtain the required water temperature at any moment. The water outlet of the inner container of the electric thermos bottle is lower than the bottom surface of the inner container, so that water in the inner container can be discharged cleanly; the temperature sensor is used for detecting the temperature of the liquid in the inner container in real time, then the detected temperature of the liquid in the inner container is transmitted to the control unit, the control unit calculates the temperature change rate of the liquid in the inner container according to the temperature of the liquid in the inner container detected by the temperature sensor, the control unit acquires the working state of the heating element, and the control unit invokes the corresponding preset temperature change rate in the corresponding state according to the acquired working state, when the calculated temperature change rate is greater than or equal to the preset temperature change rate, the heating element is controlled to stop working, and the phenomenon of dry burning of the liquid heating device in each state can be effectively prevented.
Drawings
FIG. 1 is a schematic view of a liquid heating apparatus according to embodiment 1 of the present invention;
fig. 2 is a schematic diagram of an electric control system of a liquid heating apparatus according to embodiment 1 of the present invention;
FIG. 3 is a flow chart of a method for controlling dry heating prevention of a liquid heating apparatus according to embodiment 5 of the present invention;
FIG. 4 is a flow chart of a method for controlling dry heating prevention of a liquid heating apparatus according to embodiment 6 of the present invention;
fig. 5 is a flowchart of a method for controlling dry heating prevention of a liquid heating apparatus according to embodiment 7 of the present invention.
In the drawings, the list of components represented by the various numbers is as follows:
1. the water heater comprises a liner, 2, a heating element, 3, an electric water pump, 4, a temperature sensor, 5, a control unit, 6, a water outlet of a liquid heating device, 11, a liner bottom dish surface, 12, a liner bottom dish lowest surface, 13, a liner water outlet, 14 and a water outlet net cover.
Detailed Description
The principles and features of the present invention are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention.
The liquid heating device is provided with the electric water pump, water can be automatically discharged, the whole device is not required to be lifted every time water is poured, the temperature of the liquid in the inner container is detected in real time through the temperature sensor, the detected temperature of the liquid in the inner container is transmitted to the control unit, the control unit calculates the temperature change rate of the liquid in the inner container according to the temperature of the liquid in the inner container detected by the temperature sensor, the control unit obtains the working state of the heating body, and the control unit invokes the corresponding preset temperature change rate in the corresponding state according to the obtained working state, and when the calculated temperature change rate is greater than or equal to the preset temperature change rate, the heating body is controlled to stop working, so that the phenomenon of dry heating of the liquid heating device in all states can be effectively prevented.
In the embodiment 1, the water outlet of the liner is lower than the bottom surface of the liner, and the water outlet is higher than or flush with the bottom surface of the liner, which is also within the protection scope of the present invention. The inner container water outlet flushes or is lower than the condition of inner container bottom surface, the inner container water outlet passes through the drain pipe and is connected with electric water pump, electric water pump passes through drain pipe connection liquid heating device outlet, discharges the water in the inner container through electric water pump, because the inner container water outlet flushes or is lower than the inner container bottom surface, compares in the condition that the inner container water outlet is higher than the inner container bottom surface when need empty residual water and can in time drain the residual water in the inner container.
Specifically, the working states of the heating element comprise a heating state, a heat preservation state and a stop working state; when the heating body is in a heating state, the control unit invokes a first preset temperature change rate V1 in the state, and when the temperature change rate of the liner liquid calculated by the control unit is greater than or equal to the first preset temperature change rate V1 in the state, the control unit controls the heating body to stop working; when the heating element is in a heat preservation state, the control unit invokes a second preset temperature change rate V2 in the state, and when the temperature change rate of the liner liquid calculated by the control unit in the state is greater than or equal to the second preset temperature change rate V2, the control unit controls the heating element to stop working; when the heating element is in a stop working state, the control unit invokes a third preset temperature change rate V3 in the state, and when the temperature change rate (at the moment, the temperature is in a descending state) of the liner liquid calculated by the control unit is greater than or equal to the third preset temperature change rate V3 in the state, the control unit controls the heating element to stop working and does not control the heating element to execute any instruction. The invention sets the preset value of the temperature change rate of the liquid heating device in different states, compares the checking value with the preset value, realizes real-time accurate judgment of whether the liquid amount in the liner in each state is too small or not, and easily generates the dry burning phenomenon, and timely controls the heating body to stop working under the condition of meeting the condition, thereby avoiding the occurrence of the dry burning phenomenon.
In example 2, based on example 1, the control unit is configured to preferentially detect whether the electric water pump is started, control the heating element to stop operating if the electric water pump is started, and control the heating element to return to a state before the electric water pump is started if the electric water pump is stopped. The electric water pump is checked to be working or not preferentially, if the electric water pump is working, the heating body is controlled to be not working, and the problems that when the electric water pump pumps water, the heating body is heated simultaneously to generate bubbles to block the electric water pump, so that water is not smooth, or when the water is pumped, the water quantity in the inner container is pumped down to a low water level, and dry combustion phenomenon occurs are solved.
The state before the electric water pump of the heating body is started comprises a heating state, a heat preservation state and a working stop state. The heating device comprises a plurality of functional states such as heating, heat preservation, natural cooling and the like, so that the user experience of the product is improved; and no matter what state the heating body is before the electric water pump is started, only the electric water pump is started, and the heating body stops working; after the electric water pump stops working, the heating body is restored to the state before the electric water pump is started, and the intelligent degree of the product is improved.
The water outlet of the liner is provided with a water outlet net cover 14. The water outlet net cover is arranged at the water outlet of the inner container, so that the water pump is effectively prevented from being blocked due to the fact that scale in the inner container enters the electric water pump.
The temperature sensor is installed to the inner bag bottom, temperature sensor is connected with the control unit for the real-time liquid temperature in the inner bag of gathering, conveying to the control unit, and show through display module. The device is provided with a temperature sensor, so that the temperature of the liquid in the liner can be monitored and displayed in real time.
In example 6, as shown in fig. 4, on the basis of example 5, the control unit preferentially detects whether the electric water pump of the liquid heating apparatus is started, if so, controls the heating element of the liquid heating apparatus to stop operating, and if the electric water pump stops operating, controls the heating element to return to the state before the electric water pump is started. The electric water pump is checked to be working or not preferentially, if the electric water pump is working, the heating body is controlled to be not working, and the problems that when the electric water pump pumps water, the heating body is heated simultaneously to generate bubbles to block the electric water pump, so that water is not smooth, or when the water is pumped, the water quantity in the inner container is pumped down to a low water level, and dry combustion phenomenon occurs are solved.
Embodiment 7, as shown in fig. 5, further includes detecting a child lock key or a safety lock key of the liquid heating device when the electric water pump is started on the basis of embodiment 6, and controlling the heating element to stop working and controlling the electric water pump to start when the electric water pump is in an unlocking state; when the child lock key or the safety lock key is locked, the water outlet function is locked, the electric water pump stops working, and the heating body is controlled to recover to the state before the electric water pump is started. The liquid heating device further comprises a control panel, the control panel is provided with a child lock key or a safety lock key, the use safety of the product can be effectively guaranteed, before the electric water pump is utilized for pumping water, the child lock key or the safety lock key is required to be pressed firstly for unlocking, the heating body stops working, the water outlet function can be started, when the child lock key or the safety lock key is locked, the water outlet function is locked, the heating body is restored to the state before unlocking, the dry burning phenomenon is effectively prevented, and the use safety of the product is improved.
The state before the electric water pump of the heating body is started comprises a heating state, a heat preservation state and a working stop state. The heating device comprises a plurality of functional states such as heating, heat preservation, natural cooling and the like, so that the user experience of the product is improved; and no matter what state the heating body is before the electric water pump is started, only the electric water pump is started, and the heating body stops working; after the electric water pump stops working, the heating body is restored to the state before the electric water pump is started, and the intelligent degree of the product is improved.
Embodiment 7 of the present invention further provides a method for controlling dry heating prevention of an electric thermos bottle, which includes the method for controlling dry heating prevention of a liquid heating apparatus according to the above embodiments 5, 6 or 7. According to the invention, the control method for preventing the electric water bottle from being dried is realized by the control method for preventing the liquid heating device from being dried, so that the phenomenon of drying the electric water bottle can be effectively prevented.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (11)
1. The control method comprises the steps that the temperature sensor detects the temperature of the liquid in the inner container in real time, then the detected temperature of the liquid in the inner container is transmitted to the control unit, the control unit calculates the temperature change rate of the liquid in the inner container according to the temperature of the liquid in the inner container detected by the temperature sensor, the control unit obtains the working state of the heating body, and the control unit adjusts the corresponding preset temperature change rate in the corresponding state according to the obtained working state, and when the temperature change rate of the liquid in the inner container calculated by the control unit is larger than or equal to the preset temperature change rate, the heating body is controlled to stop working;
the working states of the heating element comprise a heating state, a heat preservation state and a stop working state;
when the heating body is in a heating state, the control unit invokes a first preset temperature change rate V1 in the state, and when the temperature change rate of the liner liquid calculated by the control unit is greater than or equal to the first preset temperature change rate V1 in the state, the control unit controls the heating body to stop working;
when the heating element is in a heat preservation state, the control unit invokes a second preset temperature change rate V2 in the state, and when the temperature change rate of the liner liquid calculated by the control unit is greater than or equal to the second preset temperature change rate V2 in the state, the control unit controls the heating element to stop working;
when the heating element is in a stop working state, the control unit invokes a third preset temperature change rate V3 in the state, and when the temperature change rate of the liner liquid calculated by the control unit is greater than or equal to the third preset temperature change rate V3 in the state, the control unit controls the heating element to stop working and does not control the heating element to execute any instruction.
2. The method according to claim 1, wherein the liquid heating apparatus further comprises an electric water pump, the control unit preferentially detects whether the electric water pump of the liquid heating apparatus is started, controls the heating element of the liquid heating apparatus to stop operating if the electric water pump is started, and controls the heating element to return to a state before the electric water pump is started if the electric water pump is stopped.
3. The dry heating prevention control method of the liquid heating device according to claim 2, wherein the liquid heating device further comprises a control panel, a child lock key or a safety lock key is arranged on the control panel, when the starting of the electric water pump is detected, the state of the child lock key or the safety lock key of the liquid heating device is detected, when the electric water pump is in an unlocking state, the heating body is controlled to stop working, the electric water pump is controlled to start, and water is discharged from the liquid heating device; when the child lock key or the safety lock key is locked, the water outlet function is locked, the electric water pump stops working, and the heating body is controlled to recover to the state before the electric water pump is started.
4. A method for controlling a liquid heating apparatus to prevent dry heating as claimed in claim 2 or 3, wherein the state before the electric water pump of the heating element is started includes a heating state, a heat-retaining state and a stop state.
5. A method for controlling the dry burning prevention of an electric thermos bottle, which is characterized by comprising the method for controlling the dry burning prevention of the liquid heating device according to any one of claims 1 to 4.
6. A liquid heating device, characterized in that the method of any one of claims 1-4 is adopted to realize dry burning prevention control, and the liquid heating device comprises a liner, a heating body, a temperature sensor and a control unit, wherein the temperature sensor is connected with the control unit, and the control unit is connected with the heating body.
7. The liquid heating apparatus of claim 6, further comprising an electric water pump, wherein the electric water pump and the temperature sensor are connected with the control unit, wherein a liner water outlet is formed in the bottom of the liner, wherein the liner water outlet is connected with the electric water pump through a drain pipe, and wherein the electric water pump is connected with the liquid heating apparatus water outlet through the drain pipe.
8. The liquid heating apparatus of claim 7, wherein the liner drain opening is flush with or below the liner bottom surface.
9. The liquid heating apparatus of claim 8, wherein the bottom of the inner container is an inner container bottom dish surface, the inner container bottom dish surface is provided with an inner container bottom dish lowest surface lower than the inner container bottom dish surface, the inner container bottom dish lowest surface is excessively connected with the inner container bottom dish surface in a curved surface manner, and the inner container bottom dish lowest surface is provided with an inner container water outlet.
10. The liquid heating apparatus as claimed in any one of claims 6 to 9, wherein a drain screen is installed at the drain of the liner.
11. An electric hot water bottle comprising a liquid heating apparatus as claimed in any one of claims 6 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610127731.1A CN107157316B (en) | 2016-03-07 | 2016-03-07 | Liquid heating device, electric hot water bottle and dry heating prevention control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610127731.1A CN107157316B (en) | 2016-03-07 | 2016-03-07 | Liquid heating device, electric hot water bottle and dry heating prevention control method thereof |
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| CN107157316A CN107157316A (en) | 2017-09-15 |
| CN107157316B true CN107157316B (en) | 2023-05-30 |
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| CN108278639B (en) * | 2018-01-10 | 2020-02-11 | 广东美的厨房电器制造有限公司 | Gas stove and control method thereof |
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| CN110850769A (en) * | 2019-11-07 | 2020-02-28 | 深圳朗特智能控制股份有限公司 | Dry burning prevention heating circuit, device and method |
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| CN111012174A (en) * | 2020-01-08 | 2020-04-17 | 韦星 | Water level detection and heating control system, water level detection and heating control method and electric kettle |
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| CN103251320A (en) * | 2013-05-16 | 2013-08-21 | 上海大学 | Intelligent water dispenser |
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| CN104776604B (en) * | 2015-03-31 | 2018-06-08 | 芜湖美的厨卫电器制造有限公司 | The anti-dry control method and electric heater of electric heater |
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| CN1749897A (en) * | 2005-09-27 | 2006-03-22 | 晶辉科技（深圳）有限公司 | Control method for electric heating kettle |
| WO2008031253A1 (en) * | 2006-08-15 | 2008-03-20 | Mr Technology (Int'l) Ltd. | Intelligent glass electric heating kettle |
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