Electric kettle, control method and device thereof, storage medium and program product

Abstract

The invention discloses a control method and device for an electric kettle, the electric kettle, a storage medium and a computer program product, and the method comprises the steps: controlling the electric kettle to start to operate at a preset first power after the electric kettle is started; the initial water temperature for starting noise reduction is determined according to the change condition of the water temperature in the electric kettle; determining the power of the electric kettle when noise reduction is started according to the initial water temperature and the water temperature in the electric kettle, and recording the power as second power; after the water temperature in the electric kettle reaches the initial water temperature, the power of the electric kettle is controlled to be second power; after the water temperature in the electric kettle reaches the preset first temperature, the power of the electric kettle is controlled to be preset third power; and then the operation state of the electric kettle is controlled according to the water temperature in the electric kettle. According to the scheme, the initial temperature for noise reduction is determined according to the water temperature in the electric kettle, and the power of the electric kettle in the noise reduction process is controlled in real time according to the initial temperature and the water temperature in the kettle, so that the noise generated when the electric kettle boils water is reduced, and the user experience is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of household appliances, and in particular relates to a control method and device for an electric kettle, an electric kettle, a storage medium and a computer program product. Background Art

[0002] When the electric kettle is heated at high power, the temperature of the bottom of the kettle is too high to reach the boiling point, while the temperature of the water in other parts is much lower than the boiling point. The water at the bottom of the kettle vaporizes to form bubbles, and the bubbles rise and come into contact with the cooler water. The water vapor quickly liquefies, and the bubbles cavitate inside. The bubbles quickly collapse inward, and the liquid impact generates a lot of energy. The energy generated by the cavitation and collapse of countless bubbles causes the high-frequency vibration of the kettle body to produce noise. And before the water temperature reaches 90℃, there is a period of time when the maximum noise can reach more than 60dB, which greatly affects the user experience.

[0003] The above contents are only used to assist in understanding the technical solution of the present invention and do not constitute an admission that the above contents are prior art. Summary of the invention

[0004] The purpose of the present invention is to provide a control method, device, electric kettle, storage medium and computer program product for an electric kettle, so as to solve the problem of generating large noise during the boiling process of the electric kettle in the related scheme, thereby achieving the goal of determining the starting temperature for noise reduction according to the water temperature in the electric kettle, and controlling the power of the electric kettle in the noise reduction process in real time according to the starting temperature and the water temperature in the kettle, reducing the number of bubbles generated at the bottom of the electric kettle, reducing the noise during the boiling process of the electric kettle, and improving the user experience.

[0005] The present invention provides a method for controlling an electric kettle, the method comprising: after turning on the electric kettle, controlling the electric kettle to start running at a preset first power; obtaining the water temperature in the electric kettle; determining the starting water temperature for starting to reduce the noise of the running process of the electric kettle according to the change of the water temperature in the electric kettle; determining the power of the electric kettle when starting to reduce the noise of the running process of the electric kettle according to the starting water temperature and the water temperature in the electric kettle, recorded as a second power; after the water temperature in the electric kettle reaches the starting water temperature, starting to reduce the noise of the running process of the electric kettle, and controlling the power of the electric kettle to the second power; after the water temperature in the electric kettle reaches the preset first temperature, controlling the power of the electric kettle to a preset third power; and then controlling the running state of the electric kettle according to the water temperature in the electric kettle.

[0006] In some embodiments, the starting water temperature for starting to reduce the noise of the operation process of the electric kettle is determined according to the change of the water temperature in the electric kettle, including: recording the time taken for the water temperature in the electric kettle to increase from a set first temperature to a set second temperature as a heating time; from a preset corresponding relationship, determining the water temperature corresponding to the heating time as the starting water temperature for starting to reduce the noise of the operation process of the electric kettle; wherein, the set first temperature is less than the set second temperature; the preset corresponding relationship is a corresponding relationship between the heating time and the starting water temperature, and the heating time is inversely proportional to the starting water temperature.

[0007] In some embodiments, determining the power of the electric kettle when the noise reduction of the operation process of the electric kettle is started according to the starting water temperature and the water temperature in the electric kettle, recorded as the second power, includes: bringing the starting water temperature and the water temperature in the electric kettle into a preset calculation formula to calculate the second power; the preset calculation formula is:

[0008]

[0009] Among them, P is the second power; T is the preset water temperature; T1 is the starting water temperature; T2 is the preset first temperature; K, P1, and P2 are all set parameters.

[0010] In some embodiments, after the water temperature in the electric kettle reaches the starting water temperature, the power of the electric kettle is controlled using a preset duty cycle method to start noise reduction during the operation of the electric kettle; wherein the duty cycle method is: after controlling the electric kettle to run at a preset fourth power for a first time period, the electric kettle is stopped for a second time period, and the cycle is repeated.

[0011] In some embodiments, the operating state of the electric kettle is controlled according to the water temperature in the electric kettle, including: determining whether the water temperature in the electric kettle reaches a preset second temperature; if the water temperature in the electric kettle reaches the preset second temperature and continues for a first time, controlling the electric kettle to stop running; if the water temperature of the electric kettle does not reach the preset second temperature and does not change for a second time, controlling the electric kettle to stop running.

[0012] Matching the above method, the present invention provides a control device for an electric kettle on the other hand, the control device comprising: a control unit, configured to control the electric kettle to start running at a preset first power after the electric kettle is turned on; an acquisition unit, configured to acquire the water temperature in the electric kettle; the control unit is further configured to determine the starting water temperature for starting to reduce the noise of the running process of the electric kettle according to the change of the water temperature in the electric kettle; the control unit is further configured to determine the power of the electric kettle when starting to reduce the noise of the running process of the electric kettle according to the starting water temperature and the water temperature in the electric kettle, recorded as a second power; the control unit is further configured to start to reduce the noise of the running process of the electric kettle after the water temperature in the electric kettle reaches the starting water temperature, and control the power of the electric kettle to the second power; the control unit is further configured to control the power of the electric kettle to the preset third power after the water temperature in the electric kettle reaches the preset first temperature; and then control the running state of the electric kettle according to the water temperature in the electric kettle.

[0013] In some embodiments, the control unit determines the starting water temperature for starting to reduce the noise of the operation process of the electric kettle according to the change of the water temperature in the electric kettle, including: recording the time taken for the water temperature in the electric kettle to increase from a set first temperature to a set second temperature as the heating time; from a preset corresponding relationship, determining the water temperature corresponding to the heating time as the starting water temperature for starting to reduce the noise of the operation process of the electric kettle; wherein, the set first temperature is less than the set second temperature; the preset corresponding relationship is the corresponding relationship between the heating time and the starting water temperature, and the heating time is inversely proportional to the starting water temperature.

[0014] In some embodiments, the control unit determines the power of the electric kettle when the noise reduction of the operation process of the electric kettle is started according to the starting water temperature and the water temperature in the electric kettle, which is recorded as the second power, including: bringing the starting water temperature and the water temperature in the electric kettle into a preset calculation formula to calculate the second power; the preset calculation formula is:

[0015]

[0016] Among them, P is the second power; T is the preset water temperature; T1 is the starting water temperature; T2 is the preset first temperature; K, P1, and P2 are all set parameters.

[0017] In some embodiments, the control unit is further configured to control the power of the electric kettle using a preset duty cycle after the water temperature in the electric kettle reaches the starting water temperature, so as to start reducing noise during the operation of the electric kettle; wherein the duty cycle method is: controlling the electric kettle to run at a preset fourth power for a first period of time, and then stopping the operation of the electric kettle for a second period of time, and repeating this cycle.

[0018] In some embodiments, the control unit controls the operating state of the electric kettle according to the water temperature in the electric kettle, including: determining whether the water temperature in the electric kettle reaches a preset second temperature; if the water temperature in the electric kettle reaches the preset second temperature and continues for a first time, controlling the electric kettle to stop running; if the water temperature of the electric kettle does not reach the preset second temperature and does not change for a second time, controlling the electric kettle to stop running.

[0019] Matching the above device, the present invention provides an electric kettle on another aspect, comprising: the control device of the electric kettle described above.

[0020] Matching the above method, the present invention provides a storage medium on another aspect, wherein the storage medium includes a stored program, wherein when the program is running, the device where the storage medium is located is controlled to execute the above-mentioned control method for the electric kettle.

[0021] Matching the above method, the present invention further provides a computer program product on the other hand, wherein the computer program product comprises a computer program, and when the computer program product is processed and executed, the steps of the above method for controlling the electric kettle are implemented.

[0022] According to the scheme of the present invention, after the electric kettle is turned on, the starting water temperature for reducing the noise of the running process of the electric kettle is determined according to the change of the water temperature in the electric kettle; the power of the electric kettle when the noise reduction of the running process of the electric kettle is started is determined according to the starting water temperature and the water temperature in the electric kettle, which is recorded as the second power; after the water temperature in the electric kettle reaches the starting water temperature, the noise reduction of the running process of the electric kettle is started, and the power of the electric kettle is controlled to be the second power; after the water temperature in the electric kettle reaches the preset first temperature, the power of the electric kettle is controlled to be the preset third power; and then the running state of the electric kettle is controlled according to the water temperature in the electric kettle. Thus, by determining the starting temperature for noise reduction according to the water temperature in the electric kettle, and controlling the power of the electric kettle in the noise reduction process in real time according to the starting temperature and the water temperature in the kettle, the number of bubbles generated at the bottom of the electric kettle is reduced, the noise in the process of boiling water in the electric kettle is reduced, and the user experience is improved.

[0023] Other features and advantages of the present invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the present invention.

[0024] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a flow chart of an embodiment of a method for controlling an electric kettle of the present invention;

[0026] Figure 2 is a schematic structural diagram of an embodiment of a control device for an electric kettle of the present invention;

[0027] Figure 3 The present invention is a flow chart of a method for controlling the silent boiling of water in an electric kettle.

[0028] In conjunction with the accompanying drawings, the reference numerals in the embodiments of the present invention are as follows:

[0029] 102 - acquisition unit; 104 - control unit. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] In order to reduce the noise generated by the electric kettle during the boiling process, the relevant solution is to add a noise reduction stage during the boiling process. When the water temperature reaches a certain temperature, the noise reduction stage is entered to reduce the noise by reducing the power. However, the temperature point that generates a large noise when boiling water changes with the amount of water boiled. For example, under some working conditions, the temperature point is 73.3℃ when the amount of water boiled is 500ml, the temperature point is 65.5℃ when the amount of water boiled is 1200ml, and the temperature point is 54.2℃ when the amount of water boiled is 2000ml. Therefore, the noise reduction method of reducing power after the water temperature reaches a certain temperature may still generate a large noise.

[0032] Therefore, the present invention provides an electric kettle control method for reducing the noise during boiling water. By determining the temperature point for noise reduction and the boiling power for noise reduction according to the amount of boiled water, not only the noise during boiling water can be reduced, but also the boiling time can be extended by avoiding excessive power reduction, thereby making the electric kettle more intelligent and improving the user experience.

[0033] According to an embodiment of the present invention, a control method for an electric kettle is provided. The electric kettle has a silent water boiling mode and a traditional water boiling mode, and the user can select which mode to use for boiling water. When the user selects the silent water boiling mode, the electric kettle is controlled to boil water according to the control method of the present invention. Figure 1 The flow chart of an embodiment of the method of the present invention is shown in FIG. The control method of the electric kettle may include: steps S110 to S160.

[0034] In step S110 , after the electric kettle is turned on, the electric kettle is controlled to start running at a preset first power.

[0035] When the user selects the silent mode to start boiling water, the electric kettle first starts boiling water at the first power, and the value range of the first power is 0.8P max ~P max , P max The maximum power of the electric kettle. At the first power, the electric kettle runs close to full power, causing the water in the kettle to heat up quickly. At this time, the water temperature in the kettle is not high, and the temperature at the bottom of the kettle has not reached the boiling point, so no noise will be generated.

[0036] In step S120, the water temperature in the electric kettle is obtained.

[0037] The electric kettle is equipped with a temperature sensing element, a timer, and a controller. The temperature sensing element is used to detect the water temperature in the electric kettle, including but not limited to a temperature sensing package, an infrared temperature measuring element, etc. The timer is used to time the process of boiling water, so as to infer the amount of water in the electric kettle. The controller is used to control the power and start and stop of the electric kettle.

[0038] In step S130, the starting water temperature for reducing the noise during the operation of the electric kettle is determined according to the change of the water temperature in the electric kettle.

[0039] The amount of water boiled by the electric kettle is different, so the temperature point at which noise starts to be generated during the boiling process is different, that is, the starting water temperature for noise reduction is different. There is a corresponding relationship between the amount of water boiled and the starting water temperature.

[0040] In some embodiments, in step S130, the specific process of determining the starting water temperature for reducing the noise of the operation process of the electric kettle according to the change of the water temperature in the electric kettle includes: recording the time taken for the water temperature in the electric kettle to increase from the set first temperature to the set second temperature as the heating time; and determining the water temperature corresponding to the heating time as the starting water temperature for reducing the noise of the operation process of the electric kettle from a preset corresponding relationship; wherein the preset corresponding relationship is the corresponding relationship between the heating time and the starting water temperature, and the heating time is inversely proportional to the starting water temperature. Set the first temperature < set the second temperature.

[0041] The first temperature is set in the range of 30°C to 40°C, and the second temperature is set in the range of 50°C to 70°C. During the water boiling process, the amount of water in the kettle can be judged according to the time taken for the water temperature to rise from the set first temperature to the set second temperature. The amount of water is proportional to the time taken, that is, the more water, the longer the time taken, and the less water, the shorter the time taken.

[0042] Optionally, a liquid level sensor can be set in the kettle to detect the water level, and the corresponding water volume can be obtained according to the water level. For example, a probe and a wire are installed on the inner wall of the kettle. When the water level changes, the resistance value between the probe and the wire will change, and the corresponding water volume can be calculated.

[0043] The value range of the starting water temperature can be set to 50℃~80℃, which is specifically determined by the length of the heating time. In the correspondence between the heating time and the starting water temperature, each heating time corresponds to a starting water temperature. Since the water volume and the starting water temperature are inversely proportional, for example, when the water volume is 500ml, the temperature point is 73.3℃, ​​when the water volume is 1200ml, the temperature point is 65.5℃, and when the water volume is 2000ml, the temperature point is 54.2℃. Therefore, the heating time is inversely proportional to the starting water temperature, that is, the more water, the longer the heating time, and the longer the heating time, the lower the starting water temperature.

[0044] In step S140, the power of the electric kettle when the noise reduction of the operation process of the electric kettle is started is determined according to the starting water temperature and the water temperature in the electric kettle, and is recorded as the second power.

[0045] After the noise reduction starts, the electric kettle can reduce noise by reducing power. The second power is determined by the starting water temperature and the water temperature in the electric kettle. When the amount of water is small, the starting water temperature is higher, the temperature difference between the water and the bottom of the kettle is smaller, the water absorbs heat more slowly, and the bottom of the kettle is more likely to accumulate heat and bubbles. Therefore, the second power is smaller at this time. When the amount of water is large, the starting water temperature is lower, the overall water temperature in the kettle is lower, the temperature difference between the water and the bottom of the kettle is higher, and the water absorbs heat faster. A higher temperature is required for the temperature at the bottom of the kettle to accumulate and produce bubbles, that is, noise will only be generated at a higher temperature. Therefore, the second power can be larger at this time, making the boiling time shorter and no noise. Therefore, the second power is positively correlated with the amount of water, and the second power is also positively correlated with the time it takes for the water temperature to rise from the set first temperature to the set second temperature.

[0046] As the heating process continues, the water temperature in the kettle gradually rises, the temperature difference between the water and the bottom of the kettle gradually decreases, the rate at which the water absorbs heat slows down, and the heat accumulation at the bottom of the kettle increases. Therefore, as the water temperature in the kettle increases, the second power needs to be gradually reduced, that is, at this stage the water temperature in the kettle is negatively correlated with the second power.

[0047] In some embodiments, in step S140, according to the starting water temperature and the water temperature in the electric kettle, determining the power of the electric kettle when the noise reduction of the operation process of the electric kettle is started, recorded as the second power, includes: bringing the starting water temperature and the water temperature in the electric kettle into a preset calculation formula to calculate the second power. The preset calculation formula is:

[0048]

[0049] Wherein, P is the second power; T is the preset water temperature; T1 is the starting water temperature; T2 is the preset first temperature; K, P1, and P2 are all setting parameters, the value range of K is 0.5≤K≤10, and the value range of P1 is 0≤P1≤0.5P max , the value range of P2 is 0.3P max ≤P2≤0.5P max .

[0050] By calculating the current power of the kettle in real time based on the starting water temperature and the water temperature in the kettle, the kettle is controlled to operate at the second power to avoid bubbles at the bottom of the kettle. This shortens the total time required to boil water while ensuring that no noise is generated, thereby improving the user experience.

[0051] Optionally, the value range of the second power P can be set to 0.3P max ≤P≤0.7P max , and according to the relationship between the second power and the water temperature increasing from the set first temperature to the set second temperature, and the relationship between the second power and the water temperature in the kettle, a suitable value is selected from the value range as the second power.

[0052] In step S150, after the water temperature in the electric kettle reaches the starting water temperature, the operation process of the electric kettle starts to be noise-reduced, and the power of the electric kettle is controlled to be the second power.

[0053] In order to eliminate or reduce the noise generated during the boiling process, it is necessary to reduce the number of bubbles formed at the bottom of the kettle. By controlling the operation of the electric kettle according to the second power, the local temperature accumulation at the bottom of the kettle is reduced, thereby reducing the number of bubbles generated, and further reducing the number of bubbles collapsed by cavitation, thereby avoiding the high-frequency vibration of the kettle body and the generation of noise.

[0054] In some embodiments, after the noise reduction of the operation process of the electric kettle begins, the power of the electric kettle may be controlled in a duty cycle manner. The process specifically includes: after the water temperature in the electric kettle reaches the starting water temperature, the power of the electric kettle is controlled in a preset duty cycle manner to start the noise reduction of the operation process of the electric kettle. The duty cycle manner is: after the electric kettle is controlled to operate at a preset fourth power for a first time period, the electric kettle is stopped for a second time period, and this cycle is repeated.

[0055] Controlling the operation of the electric kettle according to the duty cycle method can directly avoid the temperature accumulation at the bottom of the kettle and the noise. The duty cycle method is to run the electric kettle for a period of time, stop for a period of time, and then run for a period of time in this cycle. For example, if the average power in the duty cycle method is 0.3P max , the electric kettle is controlled to heat for 6 seconds, stop for 14 seconds, heat for 6 seconds, stop for 14 seconds, etc. Among them, the value range of the heating time in the duty cycle mode can be set to 4 seconds to 15 seconds.

[0056] By heating in a duty cycle manner, the local temperature at the bottom of the kettle can also be lowered, the generation of bubbles can be reduced, the number of bubbles that collapse due to cavitation can be reduced, and the noise generated by the electric kettle can be avoided.

[0057] In step S160, after the water temperature in the electric kettle reaches a preset first temperature, the power of the electric kettle is controlled to be a preset third power; and then the operating state of the electric kettle is controlled according to the water temperature in the electric kettle.

[0058] When the first temperature in the kettle is reached, it is believed that there will be no bubble collapse, or the bubble collapse speed will slow down, and no noise will be generated, or the noise volume will be small. At this time, the power of the electric kettle can be increased to shorten the overall time of boiling water. The value range of the first temperature is 85℃~95℃, and the value range of the third power is 0.7P max ~P max .

[0059] If the duty cycle method is used to control the power during noise reduction, after the water temperature in the kettle reaches the first temperature, the average power can be increased by increasing the time for heating the water in the duty cycle method and shortening the time for stopping heating, thereby increasing the speed of boiling water.

[0060] In some embodiments, in step S160, the specific process of controlling the operating state of the electric kettle according to the water temperature in the electric kettle includes: determining whether the water temperature in the electric kettle reaches a preset second temperature; if the water temperature in the electric kettle reaches the preset second temperature and continues for a first time, controlling the electric kettle to stop running; if the water temperature of the electric kettle does not reach the preset second temperature and does not change for a second time, controlling the electric kettle to stop running.

[0061] The second temperature is the temperature when the water boils, and the value range is 98°C to 101°C, which is related to the altitude. When the water temperature in the kettle reaches the second temperature and maintains for 5s to 60s, it is considered that the water boiling is finished, and the heating is stopped at this time, and the electric kettle is powered off.

[0062] Optionally, since the temperature of water when it boils is related to the altitude, the higher the altitude, the lower the temperature of water when it boils. Therefore, when the water temperature in the kettle reaches the first temperature and continues to rise, if it is detected that the water temperature in the electric kettle has not reached the second temperature and has not changed within 0.5min to 3min, it is also determined that the water boiling is finished and the electric kettle stops running.

[0063] This solution first determines the water volume during the boiling process, and then determines the starting temperature point for noise reduction based on the water volume. After the water temperature reaches the starting temperature point, the heating power is reduced, the local heat at the bottom of the kettle is reduced, the generation of bubbles is reduced, the number of cavitation bubbles is reduced, and the noise of the electric kettle is reduced. When the water temperature is high and the cavitation bubbles are reduced, the heating power is increased, thereby sacrificing a smaller boiling speed to achieve silent boiling and improve the user experience.

[0064] Figure 3 Schematic diagram of the flow chart of the control method of the electric kettle for quietly boiling water according to the present invention. Figure 3 As shown, the method includes:

[0065] Step 1: After starting the electric kettle, the user selects a water boiling mode for this water boiling, and the water boiling modes include a silent water boiling mode and a traditional water boiling mode. When the user selects the silent water boiling mode, step 2 is executed.

[0066] Step 2, the electric kettle operates at an average power of P1, and starts timing when the water temperature in the kettle reaches T1, and ends timing when the water temperature in the kettle reaches T2. The timing result is t1.

[0067] Step 3, determining the water temperature T3 according to the timing result t1, where t1 is inversely proportional to T3.

[0068] Step 4: When the water temperature in the kettle reaches T3, the electric kettle is controlled to operate with an average power P2, which is calculated based on the water temperature in the kettle and T3.

[0069] Step 5, when the water temperature in the kettle reaches T4, the electric kettle is controlled to run at the average power P3. Then the change of the water temperature in the kettle is judged. If the water temperature in the kettle does not reach T5 and remains unchanged for t2 time, the water boiling is stopped; if the water temperature in the kettle reaches T5 and lasts for t3 time, the water boiling is stopped; otherwise, it continues to run at P3 power.

[0070] According to the technical solution of this embodiment, after the electric kettle is turned on, the starting water temperature for noise reduction of the operation process of the electric kettle is determined according to the change of the water temperature in the electric kettle; the power of the electric kettle when the noise reduction of the operation process of the electric kettle is started is determined according to the starting water temperature and the water temperature in the electric kettle, which is recorded as the second power; after the water temperature in the electric kettle reaches the starting water temperature, the noise reduction of the operation process of the electric kettle is started, and the power of the electric kettle is controlled to be the second power; after the water temperature in the electric kettle reaches the preset first temperature, the power of the electric kettle is controlled to be the preset third power; and then the operation state of the electric kettle is controlled according to the water temperature in the electric kettle. Thus, by determining the starting temperature for noise reduction according to the water temperature in the electric kettle, and controlling the power of the electric kettle in the noise reduction process in real time according to the starting temperature and the water temperature in the kettle, the number of bubbles generated at the bottom of the electric kettle is reduced, the noise during the boiling process of the electric kettle is reduced, and the user experience is improved.

[0071] According to an embodiment of the present invention, a control device for an electric kettle corresponding to the control method of the electric kettle is also provided. The electric kettle has a silent water boiling mode and a traditional water boiling mode, and the user can choose which mode to use for boiling water. When the user selects the silent water boiling mode, the electric kettle is controlled to boil water according to the control method of this solution. Figure 2 The control device of the electric kettle may include: an acquisition unit 102 and a control unit 104 .

[0072] The control unit 104 is configured to control the electric kettle to start running at a preset first power after the electric kettle is turned on. The specific functions and processing of the control unit 104 refer to step S110.

[0073] When the user selects the silent mode to start boiling water, the electric kettle first starts boiling water at the first power, and the value range of the first power is 0.8P max ~P max , P max The maximum power of the electric kettle. At the first power, the electric kettle runs close to full power, causing the water in the kettle to heat up quickly. At this time, the water temperature in the kettle is not high, and the temperature at the bottom of the kettle has not reached the boiling point, so no noise will be generated.

[0074] The acquisition unit 102 is configured to acquire the water temperature in the electric kettle. The specific functions and processing of the acquisition unit 102 refer to step S120.

[0075] The electric kettle is equipped with a temperature sensing element, a timer, and a controller. The temperature sensing element is used to detect the water temperature in the electric kettle, including but not limited to a temperature sensing package, an infrared temperature measuring element, etc. The timer is used to time the process of boiling water, so as to infer the amount of water in the electric kettle. The controller is used to control the power and start and stop of the electric kettle.

[0076] The control unit 104 is further configured to determine the starting water temperature for reducing the noise of the operation of the electric kettle according to the change of the water temperature in the electric kettle. The specific functions and processing of the control unit 104 refer to step S130.

[0077] The amount of water boiled by the electric kettle is different, so the temperature point at which noise starts to be generated during the boiling process is different, that is, the starting water temperature for noise reduction is different. There is a corresponding relationship between the amount of water boiled and the starting water temperature.

[0078] In some embodiments, the control unit 104 determines the starting water temperature for reducing the noise of the operation process of the electric kettle according to the change of the water temperature in the electric kettle, including: recording the time taken for the water temperature in the electric kettle to increase from the set first temperature to the set second temperature as the heating time; and determining the water temperature corresponding to the heating time as the starting water temperature for reducing the noise of the operation process of the electric kettle from a preset corresponding relationship; wherein the preset corresponding relationship is the corresponding relationship between the heating time and the starting water temperature, and the heating time is inversely proportional to the starting water temperature. Set the first temperature < set the second temperature.

[0079] The first temperature is set in the range of 30°C to 40°C, and the second temperature is set in the range of 50°C to 70°C. During the water boiling process, the amount of water in the kettle can be judged according to the time taken for the water temperature to rise from the set first temperature to the set second temperature. The amount of water is proportional to the time taken, that is, the more water, the longer the time taken, and the less water, the shorter the time taken.

[0080] Optionally, a liquid level sensor can be set in the kettle to detect the water level, and the corresponding water volume can be obtained according to the water level. For example, a probe and a wire are installed on the inner wall of the kettle. When the water level changes, the resistance value between the probe and the wire will change, and the corresponding water volume can be calculated.

[0081] The value range of the starting water temperature can be set to 50℃~80℃, which is specifically determined by the length of the heating time. In the correspondence between the heating time and the starting water temperature, each heating time corresponds to a starting water temperature. Since the water volume and the starting water temperature are inversely proportional, for example, when the water volume is 500ml, the temperature point is 73.3℃, ​​when the water volume is 1200ml, the temperature point is 65.5℃, and when the water volume is 2000ml, the temperature point is 54.2℃. Therefore, the heating time is inversely proportional to the starting water temperature, that is, the more water, the longer the heating time, and the longer the heating time, the lower the starting water temperature.

[0082] The control unit 104 is further configured to determine the power of the electric kettle when the noise reduction of the operation process of the electric kettle is started according to the starting water temperature and the water temperature in the electric kettle, which is recorded as the second power. The specific functions and processing of the control unit 104 refer to step S140.

[0083] After the noise reduction starts, the electric kettle can reduce noise by reducing power. The second power is determined by the starting water temperature and the water temperature in the electric kettle. When the amount of water is small, the starting water temperature is higher, the temperature difference between the water and the bottom of the kettle is smaller, the water absorbs heat more slowly, and the bottom of the kettle is more likely to accumulate heat and bubbles. Therefore, the second power is smaller at this time. When the amount of water is large, the starting water temperature is lower, the overall water temperature in the kettle is lower, the temperature difference between the water and the bottom of the kettle is higher, and the water absorbs heat faster. A higher temperature is required for the temperature at the bottom of the kettle to accumulate and produce bubbles, that is, noise will only be generated at a higher temperature. Therefore, the second power can be larger at this time, making the boiling time shorter and no noise. Therefore, the second power is positively correlated with the amount of water, and the second power is also positively correlated with the time it takes for the water temperature to rise from the set first temperature to the set second temperature.

[0084] As the heating process continues, the water temperature in the kettle gradually rises, the temperature difference between the water and the bottom of the kettle gradually decreases, the rate at which the water absorbs heat slows down, and the heat accumulation at the bottom of the kettle increases. Therefore, as the water temperature in the kettle increases, the second power needs to be gradually reduced, that is, at this stage the water temperature in the kettle is negatively correlated with the second power.

[0085] In some embodiments, the control unit 104 determines the power of the electric kettle when the noise reduction of the operation process of the electric kettle is started according to the starting water temperature and the water temperature in the electric kettle, which is recorded as the second power, including: bringing the starting water temperature and the water temperature in the electric kettle into a preset calculation formula to calculate the second power. The preset calculation formula is:

[0086]

[0087] Wherein, P is the second power; T is the preset water temperature; T1 is the starting water temperature; T2 is the preset first temperature; K, P1, and P2 are all setting parameters, the value range of K is 0.5≤K≤10, and the value range of P1 is 0≤P1≤0.5P max , the value range of P2 is 0.3P max ≤P2≤0.5P max .

[0088] By calculating the current power of the kettle in real time based on the starting water temperature and the water temperature in the kettle, the kettle is controlled to operate at the second power to avoid bubbles at the bottom of the kettle. This shortens the total time required to boil water while ensuring that no noise is generated, thereby improving the user experience.

[0089] Optionally, the value range of the second power P can be set to 0.3P max ≤P≤0.7P max , and according to the relationship between the second power and the water temperature increasing from the set first temperature to the set second temperature, and the relationship between the second power and the water temperature in the kettle, a suitable value is selected from the value range as the second power.

[0090] The control unit 104 is further configured to, after the water temperature in the electric kettle reaches the starting water temperature, start to reduce noise during the operation of the electric kettle and control the power of the electric kettle to be the second power. The specific functions and processing of the control unit 104 refer to step S150.

[0091] In order to eliminate or reduce the noise generated during the boiling process, it is necessary to reduce the number of bubbles formed at the bottom of the kettle. By controlling the operation of the electric kettle according to the second power, the local temperature accumulation at the bottom of the kettle is reduced, thereby reducing the number of bubbles generated, and further reducing the number of bubbles collapsed by cavitation, thereby avoiding the high-frequency vibration of the kettle body and the generation of noise.

[0092] In some embodiments, the control unit 104 is further configured to control the power of the electric kettle in a duty cycle manner after the noise reduction of the operation process of the electric kettle begins. Specifically, it includes: after the water temperature in the electric kettle reaches the starting water temperature, the power of the electric kettle is controlled in a preset duty cycle manner to start the noise reduction of the operation process of the electric kettle. The duty cycle manner is: after controlling the electric kettle to run at a preset fourth power for a first time, stopping the operation of the electric kettle for a second time, and repeating this cycle.

[0093] Controlling the operation of the electric kettle according to the duty cycle method can directly avoid the temperature accumulation at the bottom of the kettle and the noise. The duty cycle method is to run the electric kettle for a period of time, stop for a period of time, and then run for a period of time in this cycle. For example, if the average power in the duty cycle method is 0.3P max, the electric kettle is controlled to heat for 6 seconds, stop for 14 seconds, heat for 6 seconds, stop for 14 seconds, etc. Among them, the value range of the heating time in the duty cycle mode can be set to 4 seconds to 15 seconds.

[0094] By heating in a duty cycle manner, the local temperature at the bottom of the kettle can also be lowered, the generation of bubbles can be reduced, the number of bubbles that collapse due to cavitation can be reduced, and the noise generated by the electric kettle can be avoided.

[0095] The control unit 104 is further configured to control the power of the electric kettle to a preset third power after the water temperature in the electric kettle reaches a preset first temperature; and then control the operating state of the electric kettle according to the water temperature in the electric kettle. The specific functions and processing of the control unit 104 refer to step S160.

[0096] When the first temperature in the kettle is reached, it is believed that there will be no bubble collapse, or the bubble collapse speed will slow down, and no noise will be generated, or the noise volume will be small. At this time, the power of the electric kettle can be increased to shorten the overall time of boiling water. The value range of the first temperature is 85℃~95℃, and the value range of the third power is 0.7P max ~P max .

[0097] If the duty cycle method is used to control the power during noise reduction, after the water temperature in the kettle reaches the first temperature, the average power can be increased by increasing the time for heating the water in the duty cycle method and shortening the time for stopping heating, thereby increasing the speed of boiling water.

[0098] In some embodiments, the control unit 104 controls the operating state of the electric kettle according to the water temperature in the electric kettle, including: determining whether the water temperature in the electric kettle reaches a preset second temperature; if the water temperature in the electric kettle reaches the preset second temperature and continues for a first time, controlling the electric kettle to stop running; if the water temperature of the electric kettle does not reach the preset second temperature and does not change for a second time, controlling the electric kettle to stop running.

[0099] The second temperature is the temperature when the water boils, and the value range is 98°C to 101°C, which is related to the altitude. When the water temperature in the kettle reaches the second temperature and maintains for 5s to 60s, it is considered that the water boiling is finished, and the heating is stopped at this time, and the electric kettle is powered off.

[0100] Optionally, since the temperature of water when it boils is related to the altitude, the higher the altitude, the lower the temperature of water when it boils. Therefore, when the water temperature in the kettle reaches the first temperature and continues to rise, if it is detected that the water temperature in the electric kettle has not reached the second temperature and has not changed within 0.5min to 3min, it is also determined that the water boiling is finished and the electric kettle stops running.

[0101] This solution first determines the water volume during the boiling process, and then determines the starting temperature point for noise reduction based on the water volume. After the water temperature reaches the starting temperature point, the heating power is reduced, the local heat at the bottom of the kettle is reduced, the generation of bubbles is reduced, the number of cavitation bubbles is reduced, and the noise of the electric kettle is reduced. When the water temperature is high and the cavitation bubbles are reduced, the heating power is increased, thereby sacrificing a smaller boiling speed to achieve silent boiling and improve the user experience.

[0102] Figure 3 Schematic diagram of the flow chart of the control method of the electric kettle for quietly boiling water according to the present invention. Figure 3 As shown, the method includes:

[0103] Step 1: After starting the electric kettle, the user selects a water boiling mode for this water boiling, and the water boiling modes include a silent water boiling mode and a traditional water boiling mode. When the user selects the silent water boiling mode, step 2 is executed.

[0104] Step 2, the electric kettle operates at an average power of P1, and starts timing when the water temperature in the kettle reaches T1, and ends timing when the water temperature in the kettle reaches T2. The timing result is t1.

[0105] Step 3, determining the water temperature T3 according to the timing result t1, where t1 is inversely proportional to T3.

[0106] Step 4: When the water temperature in the kettle reaches T3, the electric kettle is controlled to operate with an average power P2, which is calculated based on the water temperature in the kettle and T3.

[0107] Step 5, when the water temperature in the kettle reaches T4, the electric kettle is controlled to run at the average power P3. Then the change of the water temperature in the kettle is judged. If the water temperature in the kettle does not reach T5 and remains unchanged for t2 time, the water boiling is stopped; if the water temperature in the kettle reaches T5 and lasts for t3 time, the water boiling is stopped; otherwise, it continues to run at P3 power.

[0108] Since the processing and functions implemented by the device of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned method, for the details not fully described in this embodiment, please refer to the relevant descriptions in the aforementioned embodiments, and no further elaboration will be made here.

[0109] According to the technical solution of the present invention, after the electric kettle is turned on, the starting water temperature for reducing the noise of the running process of the electric kettle is determined according to the change of the water temperature in the electric kettle; the power of the electric kettle when the noise reduction of the running process of the electric kettle is started is determined according to the starting water temperature and the water temperature in the electric kettle, which is recorded as the second power; after the water temperature in the electric kettle reaches the starting water temperature, the noise reduction of the running process of the electric kettle is started, and the power of the electric kettle is controlled to be the second power; after the water temperature in the electric kettle reaches the preset first temperature, the power of the electric kettle is controlled to be the preset third power; and then the running state of the electric kettle is controlled according to the water temperature in the electric kettle. Thus, by determining the starting temperature for noise reduction according to the water temperature in the electric kettle, and controlling the power of the electric kettle in the noise reduction process in real time according to the starting temperature and the water temperature in the kettle, the number of bubbles generated at the bottom of the electric kettle is reduced, the noise during the boiling process of the electric kettle is reduced, and the user experience is improved.

[0110] According to an embodiment of the present invention, an electric kettle corresponding to the control device of the electric kettle is also provided. The electric kettle may include: the control device of the electric kettle described above.

[0111] Since the processing and functions implemented by the electric kettle of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned device, for the details not fully described in this embodiment, please refer to the relevant descriptions in the aforementioned embodiments, and no further elaboration will be made here.

[0112] According to the technical solution of the present invention, after the electric kettle is turned on, the starting water temperature for reducing the noise of the running process of the electric kettle is determined according to the change of the water temperature in the electric kettle; the power of the electric kettle when the noise reduction of the running process of the electric kettle is started is determined according to the starting water temperature and the water temperature in the electric kettle, which is recorded as the second power; after the water temperature in the electric kettle reaches the starting water temperature, the noise reduction of the running process of the electric kettle is started, and the power of the electric kettle is controlled to be the second power; after the water temperature in the electric kettle reaches the preset first temperature, the power of the electric kettle is controlled to be the preset third power; and then the running state of the electric kettle is controlled according to the water temperature in the electric kettle. Thus, by determining the starting temperature for noise reduction according to the water temperature in the electric kettle, and controlling the power of the electric kettle in the noise reduction process in real time according to the starting temperature and the water temperature in the kettle, the number of bubbles generated at the bottom of the electric kettle is reduced, the noise during the boiling process of the electric kettle is reduced, and the user experience is improved.

[0113] According to an embodiment of the present invention, a storage medium corresponding to the control method of the electric kettle is also provided, wherein the storage medium includes a stored program, wherein when the program is running, the device where the storage medium is located is controlled to execute the control method of the electric kettle described above.

[0114] Since the processing and functions implemented by the storage medium of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned method, for the details not fully described in this embodiment, please refer to the relevant descriptions in the aforementioned embodiments, and no further elaboration will be made here.

[0115] According to the technical solution of the present invention, after the electric kettle is turned on, the starting water temperature for reducing the noise of the running process of the electric kettle is determined according to the change of the water temperature in the electric kettle; the power of the electric kettle when the noise reduction of the running process of the electric kettle is started is determined according to the starting water temperature and the water temperature in the electric kettle, which is recorded as the second power; after the water temperature in the electric kettle reaches the starting water temperature, the noise reduction of the running process of the electric kettle is started, and the power of the electric kettle is controlled to be the second power; after the water temperature in the electric kettle reaches the preset first temperature, the power of the electric kettle is controlled to be the preset third power; and then the running state of the electric kettle is controlled according to the water temperature in the electric kettle. Thus, by determining the starting temperature for noise reduction according to the water temperature in the electric kettle, and controlling the power of the electric kettle in the noise reduction process in real time according to the starting temperature and the water temperature in the kettle, the number of bubbles generated at the bottom of the electric kettle is reduced, the noise during the boiling process of the electric kettle is reduced, and the user experience is improved.

[0116] According to an embodiment of the present invention, a computer program product corresponding to the control method of the electric kettle is also provided. The computer program product includes a computer program. When the computer program product is processed and executed, the steps of the control method of the electric kettle are implemented.

[0117] Since the processing and functions implemented by the computer program product of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned method, for the details not fully described in this embodiment, please refer to the relevant descriptions in the aforementioned embodiments and will not be repeated here.

[0118] According to the technical solution of the present invention, after the electric kettle is turned on, the starting water temperature for reducing the noise of the running process of the electric kettle is determined according to the change of the water temperature in the electric kettle; the power of the electric kettle when the noise reduction of the running process of the electric kettle is started is determined according to the starting water temperature and the water temperature in the electric kettle, which is recorded as the second power; after the water temperature in the electric kettle reaches the starting water temperature, the noise reduction of the running process of the electric kettle is started, and the power of the electric kettle is controlled to be the second power; after the water temperature in the electric kettle reaches the preset first temperature, the power of the electric kettle is controlled to be the preset third power; and then the running state of the electric kettle is controlled according to the water temperature in the electric kettle. Thus, by determining the starting temperature for noise reduction according to the water temperature in the electric kettle, and controlling the power of the electric kettle in the noise reduction process in real time according to the starting temperature and the water temperature in the kettle, the number of bubbles generated at the bottom of the electric kettle is reduced, the noise during the boiling process of the electric kettle is reduced, and the user experience is improved.

[0119] In summary, it is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0120] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A method for controlling an electric kettle, characterized in that: The method comprises: After turning on the electric kettle, controlling the electric kettle to start running at a preset first power; Obtaining the water temperature in the electric kettle; Determining the starting water temperature for reducing noise during the operation of the electric kettle according to the change of the water temperature in the electric kettle; Determine, according to the starting water temperature and the water temperature in the electric kettle, the power of the electric kettle when the noise reduction of the running process of the electric kettle is started, recorded as a second power; After the water temperature in the electric kettle reaches the starting water temperature, the operation process of the electric kettle begins to be noise-reduced, and the power of the electric kettle is controlled to be the second power; After the water temperature in the electric kettle reaches a preset first temperature, the power of the electric kettle is controlled to be a preset third power; and then the operating state of the electric kettle is controlled according to the water temperature in the electric kettle.

2. The control method of the electric kettle according to claim 1, characterized in that: Determining the starting water temperature for reducing noise during the operation of the electric kettle according to the change of the water temperature in the electric kettle includes: The time taken for the water temperature in the electric kettle to rise from the set first temperature to the set second temperature is recorded as the heating time; From the preset corresponding relationship, the water temperature corresponding to the heating time is determined as the starting water temperature for starting to reduce the noise during the operation of the electric kettle; Among them, the set first temperature is less than the set second temperature; the preset corresponding relationship is the corresponding relationship between the heating time and the starting water temperature, and the heating time and the starting water temperature are inversely proportional.

3. The control method of the electric kettle according to claim 1 or 2, characterized in that: Determining the power of the electric kettle when starting to reduce the noise of the operation process of the electric kettle according to the starting water temperature and the water temperature in the electric kettle, recorded as a second power, includes: The starting water temperature and the water temperature in the electric kettle are brought into a preset calculation formula to calculate the second power; the preset calculation formula is: Among them, P is the second power; T is the preset water temperature; T1 is the starting water temperature; T2 is the preset first temperature; K, P1, and P2 are all set parameters.

4. The control method of the electric kettle according to claim 1 or 2, characterized in that: Also includes: After the water temperature in the electric kettle reaches the starting water temperature, the power of the electric kettle is controlled in a preset duty cycle manner to start noise reduction during the operation of the electric kettle; The duty cycle method is as follows: after controlling the electric kettle to run at a preset fourth power for a first period of time, the electric kettle is stopped for a second period of time, and the cycle is repeated.

5. The control method of the electric kettle according to claim 1 or 2, characterized in that: Controlling the operating state of the electric kettle according to the water temperature in the electric kettle comprises: Determining whether the water temperature in the electric kettle reaches a preset second temperature; If the water temperature in the electric kettle reaches a preset second temperature and lasts for a first time, controlling the electric kettle to stop running; If the water temperature of the electric kettle does not reach the preset second temperature and does not change for a second period of time, the electric kettle is controlled to stop running.

6. A control device for an electric kettle, characterized in that: The control device comprises: a control unit, configured to control the electric kettle to start running at a preset first power after the electric kettle is turned on; an acquisition unit, configured to acquire the water temperature in the electric kettle; The control unit is further configured to determine a starting water temperature for reducing noise during the operation of the electric kettle according to a change in the water temperature in the electric kettle; The control unit is further configured to determine, according to the starting water temperature and the water temperature in the electric kettle, the power of the electric kettle when the noise reduction of the operation process of the electric kettle is started, recorded as the second power; The control unit is further configured to start to reduce noise during the operation of the electric kettle and control the power of the electric kettle to be the second power after the water temperature in the electric kettle reaches the starting water temperature; The control unit is further configured to control the power of the electric kettle to a preset third power after the water temperature in the electric kettle reaches a preset first temperature; and then control the operating state of the electric kettle according to the water temperature in the electric kettle.

7. The control device of the electric kettle according to claim 6, characterized in that: The control unit determines the starting water temperature for reducing noise during the operation of the electric kettle according to the change of the water temperature in the electric kettle, including: The time taken for the water temperature in the electric kettle to rise from the set first temperature to the set second temperature is recorded as the heating time; From the preset corresponding relationship, the water temperature corresponding to the heating time is determined as the starting water temperature for starting to reduce the noise during the operation of the electric kettle; Among them, the set first temperature is less than the set second temperature; the preset corresponding relationship is the corresponding relationship between the heating time and the starting water temperature, and the heating time and the starting water temperature are inversely proportional.

8. An electric kettle, characterized in that: include: A control device for an electric kettle as claimed in claim 6 or 7.

9. A storage medium, characterized in that: The storage medium includes a stored program, wherein when the program is executed, the device where the storage medium is located is controlled to execute the control method for the electric kettle according to any one of claims 1 to 5.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 5 are implemented.

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