Electric kettle heat preservation control method and electric kettle

Abstract

The invention provides an electric kettle heat preservation control method and an electric kettle, and the method comprises the steps: obtaining the water volume in the electric kettle and / or the use information of the electric kettle after entering a heat preservation stage; when the water amount in the kettle is larger than the dry-burning-resistant threshold water amount, the heat preservation duration of the heat preservation stage is adjusted according to the water amount in the kettle and / or the use information of the electric kettle, and the heat preservation duration and the water amount in the kettle are positively correlated; when the water amount in the kettle is larger than the dry-burning-resistant threshold water amount, the problems that the dry-burning risk of the electric kettle is caused by continuous heat preservation and energy waste is caused are solved, and at the moment, the heat preservation duration of the heat preservation stage is adjusted according to the water amount in the kettle and / or the use information of the electric kettle; according to the function of automatically adjusting the heat preservation duration, the heat preservation duration can be adaptively adjusted according to the water amount in the kettle and the use information of the electric kettle, the heat preservation function is more reasonable, user operation is reduced, and user experience is improved.

Description

Technical Field

[0001] The invention relates to the field of electric heating kettles, and in particular to a heat preservation control method for an electric kettle and an electric kettle. Background Art

[0002] The existing electric kettle can automatically enter the keep-warm function after boiling water is finished, or can directly enter the keep-warm function when triggered; under the keep-warm function of the electric kettle, a keep-warm control method with a fixed keep-warm duration is used to perform the keep-warm operation, and the electric heating wire is controlled to start heating when the keep-warm starts, and the heating is stopped after the keep-warm duration is reached.

[0003] For example, the Chinese patent "A method for controlling the heat preservation of an electric kettle" with publication number CN107087984A mentions: "When the water temperature is lower than the set value and the amount of water in the kettle is greater than the anti-dry-burning threshold, the main control board controls the heating component to heat up."

[0004] The Chinese patent "An Electric Kettle and Its Insulation Method" with publication number CN114680610A mentions: "When the detected temperature is less than or equal to the heating start temperature, the water is heated, and when the water temperature reaches the insulation temperature, the heating is stopped."

[0005] The insulation control method of the electric kettle mentioned above cannot change the insulation time according to actual conditions, which may result in energy waste or the user cannot drink water at the set temperature. Based on this, the existing insulation function with a fixed insulation duration is single, has a low degree of intelligence, and has a poor user experience.

[0006] Therefore, there is an urgent need to propose an electric kettle heat preservation control method and an electric kettle, so as to at least solve the technical problems existing in the related art such as single heat preservation function, low intelligence level and poor user experience. Summary of the invention

[0007] The present application provides an electric kettle heat preservation control method and an electric kettle, so as to at least solve the technical problems existing in the related art of single heat preservation function, low intelligence level and poor user experience.

[0008] According to one aspect of an embodiment of the present application, a method for controlling the insulation of an electric kettle is provided, comprising: after entering a insulation stage, obtaining the amount of water in the electric kettle and / or usage information of the electric kettle; when the amount of water in the kettle is greater than an anti-dry-boiling threshold water amount, adjusting the insulation duration of the insulation stage according to the amount of water in the kettle and / or the usage information of the electric kettle, wherein the insulation duration is positively correlated with the amount of water in the kettle.

[0009] Optionally, obtaining the amount of water in the electric kettle and / or the usage information of the electric kettle includes: heating at a preset power, and obtaining a first heating rate during the heating process to characterize the amount of water in the kettle and / or the usage information; adjusting the insulation duration of the insulation stage according to the amount of water in the kettle includes: adjusting the insulation duration of the insulation stage based on the first heating rate, the heating rate being inversely correlated with the insulation duration.

[0010] Optionally, adjusting the insulation duration of the insulation stage based on the water amount in the kettle and the usage information of the electric kettle includes: when the water amount in the kettle is greater than a first preset water amount, and it is confirmed that the water in the electric kettle is used, increasing the insulation duration, and the first preset water amount is greater than the anti-dry boiling threshold water amount.

[0011] Optionally, it also includes: when the amount of water in the kettle is greater than a first preset water amount and it is confirmed that the water in the electric kettle is used, determining whether the current remaining insulation time is less than a preset time; when the current remaining insulation time is less than the preset time, increasing the insulation duration.

[0012] Optionally, it also includes: when confirming that the water in the electric kettle is used, obtaining the remaining water volume in the electric kettle after the water is used; when the remaining water volume is greater than a second preset water volume, increasing the insulation duration, wherein the second preset water volume is less than the first preset water volume.

[0013] Optionally, adjusting the insulation duration of the insulation stage according to the amount of water in the kettle includes: when the amount of water in the kettle is less than a first preset water amount; adjusting the insulation duration of the insulation stage based on the amount of water in the kettle, wherein the amount of water in the kettle is positively correlated with the insulation duration.

[0014] Optionally, adjusting the insulation duration of the insulation stage based on the water amount in the kettle includes: when the water amount in the kettle is less than a third preset water amount, reducing the insulation duration; when the water amount in the kettle is greater than the third preset water amount and less than the first preset water amount, keeping the insulation duration unchanged; wherein the third preset water amount is greater than the anti-dry burning threshold water amount and less than the first preset water amount.

[0015] Optionally, the method further includes: obtaining a total insulation duration of the electric kettle in the insulation stage; when the total insulation duration is greater than a preset total insulation duration, outputting an alarm message.

[0016] Optionally, obtaining the usage information of the electric kettle includes: after receiving the kettle lifting signal and the kettle putting down signal in sequence, heating with the preset power to obtain a second heating rate during the heating process; when the second heating rate is different from the first heating rate, confirming that the water in the electric kettle is used.

[0017] According to another aspect of the present application, an electric kettle is provided, comprising a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to perform the electric kettle heat preservation control method as described in any one of the above.

[0018] In an embodiment of the present application, a method for controlling the insulation of an electric kettle is provided, comprising: after entering the insulation stage, obtaining the amount of water in the electric kettle and / or the usage information of the electric kettle; when the amount of water in the kettle is greater than the anti-dry-boiling threshold water amount, adjusting the insulation duration of the insulation stage according to the amount of water in the kettle and / or the usage information of the electric kettle, wherein the insulation duration is positively correlated with the amount of water in the kettle; when the amount of water in the kettle is greater than the anti-dry-boiling threshold water amount, there will be no risk of the electric kettle drying out due to continued insulation and energy waste, and at this time, the insulation duration of the insulation stage is adjusted according to the amount of water in the kettle and / or the usage information of the electric kettle; the above-mentioned function of automatically adjusting the insulation duration can realize adaptive adjustment of the insulation duration according to the amount of water in the kettle and the usage information of the electric kettle, so as to make the insulation function more reasonable, reduce user operations, and improve user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0021] Figure 1 It is a flowchart of an exemplary electric kettle heat preservation control method according to an embodiment of the present invention. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0023] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0024] The insulation time of the existing kettles after boiling water or directly entering the insulation function is fixed. The heating stops after the countdown ends, and the amount of water in the kettle is not judged; the kettle continues to be insulated when there is no water or very little water in the kettle, which may cause the kettle to dry-boil, posing a risk of dry-boiling and causing energy waste; when there is a lot of water in the kettle, if the water is not finished within the insulation duration, water of the set temperature will not be available after the insulation ends; based on this, the existing insulation control method with a fixed insulation duration does not judge the amount of water in the kettle, and does not adaptively adjust the insulation duration of the kettle, which results in a single insulation function and a lack of intelligence. It is difficult to meet the actual needs of users. Based on this, the embodiment of the present application provides an insulation control method for an electric kettle, Figure 1 is a flow chart of an exemplary method for controlling the temperature preservation of an electric kettle according to an embodiment of the present invention, such as Figure 1 As shown, the electric kettle heat preservation control method includes:

[0025] S102 After entering the heat preservation stage, the amount of water in the electric kettle and / or usage information of the electric kettle are obtained.

[0026] A control method with a fixed insulation duration is adopted. After entering the insulation stage, the amount of water in the electric kettle is not judged. When there is no water in the electric kettle or the amount of water in the electric kettle is very little, the electric kettle continues to be kept warm. There is a risk of dry boiling of the electric kettle, which poses a risk of dry boiling and causes energy waste. When there is a large amount of water in the electric kettle, if the water is not drunk within the fixed insulation duration, water at the set temperature will not be available after the insulation ends. Therefore, in the present application, after entering the insulation stage, the amount of water in the electric kettle and / or the usage information of the electric kettle are obtained.

[0027] As an exemplary embodiment, in the present application, the electric kettle can automatically enter the keep warm function after boiling water is finished and / or directly enter the keep warm function when triggered to confirm entering the keep warm stage. Exemplarily, the amount of water in the electric kettle and / or the usage information of the electric kettle can be obtained at this time.

[0028] When the amount of water in the kettle is greater than the anti-dry-boiling threshold water amount, there will be no risk of the kettle drying up due to continuing to keep warm when there is no water in the kettle or the amount of water in the kettle is very small, and there will be no problem of energy waste; at this time, step S104 is entered.

[0029] Among them, as a possible implementation method, the amount of water in the electric kettle can be obtained in advance as the anti-dry-boiling threshold water amount, and the heating rate from the first preset temperature to the second preset temperature when heated at a preset power is used as the dry-boiling threshold rate; after the electric kettle enters the insulation stage, the electric kettle is controlled to heat from the first preset temperature to the second preset temperature at the preset power, and the actual heating rate is recorded; the actual heating rate is compared with the dry-boiling threshold rate, and when the actual heating rate is less than the dry-boiling threshold rate, it is confirmed that the amount of water in the kettle is greater than the anti-dry-boiling threshold water amount.

[0030] As a possible implementation method, the amount of water in the electric kettle can be obtained in advance as the anti-dry-boiling threshold water amount, and the heating time from the first preset temperature to the second preset temperature when heated at a preset power is used as the dry-boiling threshold time; after the electric kettle enters the insulation stage, the electric kettle is controlled to heat from the first preset temperature to the second preset temperature at the preset power, and the actual heating time is recorded; the actual heating time is compared with the dry-boiling threshold time, and when the actual heating time is greater than the dry-boiling threshold time, it is confirmed that the water amount in the kettle is greater than the anti-dry-boiling threshold water amount.

[0031] As another possible implementation, a water level detection electrode may be provided in the electric kettle, and the water level detection electrode is used to detect whether the amount of water in the electric kettle is greater than a dry-boiling prevention threshold water amount.

[0032] S104. Adjust the insulation duration of the insulation stage according to the amount of water in the kettle and / or the usage information of the electric kettle, wherein the insulation duration is positively correlated with the amount of water in the kettle.

[0033] In order to achieve adaptive adjustment of the insulation time of the electric kettle, in the present application, the insulation duration of the insulation stage can be adjusted according to the amount of water in the kettle; exemplarily, when the amount of water in the kettle is greater than the anti-dry-boiling threshold water amount, the insulation duration of the insulation stage is adjusted according to the amount of water in the kettle and / or the usage information of the electric kettle, wherein the insulation duration is positively correlated with the amount of water in the kettle; that is, when the amount of water in the kettle is large, a relatively large insulation duration is used for insulation to extend the total insulation duration, avoiding the technical solution of using a fixed insulation duration to keep relatively more water in the kettle warm, and the problem of not being able to drink the water of the set temperature after the insulation ends if the water is not finished within the fixed insulation duration.

[0034] Among them, exemplarily, when the amount of water in the kettle is large, the amount of water in the kettle may be close to the rated capacity; exemplarily, when the amount of water in the kettle is large, the amount of water in the kettle may be any amount within the range from three quarters of the rated capacity to the rated capacity.

[0035] When the amount of water in the kettle is small, a relatively short insulation duration is used for insulation. After the short insulation duration, the electric kettle automatically ends insulation, avoiding the technical solution of using a fixed insulation duration for insulation. Executing the insulation function with a longer insulation duration will cause energy waste.

[0036] Among them, exemplarily, when the amount of water in the kettle is small, it can be a water amount near the anti-dry-boiling threshold water amount; exemplarily, when the amount of water in the kettle is small, it can be any water amount in the range from the anti-dry-boiling threshold water amount to one-fifth of the rated capacity.

[0037] In the present application, the insulation duration of the insulation stage can be adjusted according to the usage information of the electric kettle; exemplarily, the usage information of the electric kettle may include information indicating whether the electric kettle is in use; as a possible implementation method, when information indicating that the electric kettle is in use is detected, it can be confirmed that the water in the kettle is being used, and the insulation duration can be increased based on the usage information; when information indicating that the electric kettle is in use is not detected, it can be confirmed that the water in the kettle is not being used, and the insulation duration can be reduced or maintained based on the usage information.

[0038] In the present application, the insulation duration of the insulation stage can also be adjusted according to the amount of water in the kettle and the usage information of the electric kettle.

[0039] Exemplarily, when the amount of water in the kettle is large and information indicating that the electric kettle is in use is detected, the insulation duration can be increased based on the amount of water in the kettle and the usage information of the electric kettle.

[0040] Exemplarily, when the amount of water in the kettle is large and no information indicating that the electric kettle is in use is detected, the insulation duration can be increased based on the amount of water in the kettle and the usage information of the electric kettle.

[0041] Exemplarily, when the amount of water in the kettle is small and no information indicating that the electric kettle is not in use is detected, the insulation duration can be reduced based on the amount of water in the kettle and the usage information of the electric kettle.

[0042] Exemplarily, when the amount of water in the kettle is small and information indicating that the electric kettle is not in use is detected, the insulation duration can be reduced based on the amount of water in the kettle and the usage information of the electric kettle.

[0043] Through the above technical scheme, after entering the insulation stage, the amount of water in the electric kettle and / or the usage information of the electric kettle are obtained; when the amount of water in the kettle is greater than the anti-dry-boiling threshold water amount, the insulation duration of the insulation stage is adjusted according to the amount of water in the kettle and / or the usage information of the electric kettle, wherein the insulation duration is positively correlated with the amount of water in the kettle; when the amount of water in the kettle is greater than the anti-dry-boiling threshold water amount, there will be no risk of dry-boiling of the electric kettle due to continued insulation and energy waste, and at this time, the insulation duration of the insulation stage is adjusted according to the amount of water in the kettle and / or the usage information of the electric kettle; the above-mentioned function of automatically adjusting the insulation duration can realize adaptive adjustment of the insulation duration according to the amount of water in the kettle and the usage information of the electric kettle, so as to make the insulation function more reasonable, reduce user operations, and improve user experience.

[0044] As an exemplary embodiment, obtaining the amount of water in the electric kettle and / or the usage information of the electric kettle includes: heating at a preset power, obtaining a first heating rate during the heating process to characterize the amount of water in the kettle and / or the usage information; adjusting the insulation duration of the insulation stage according to the amount of water in the kettle includes: adjusting the insulation duration of the insulation stage based on the first heating rate, the heating rate being inversely correlated with the insulation duration.

[0045] Under the insulation function of the electric kettle, heating starts when the temperature inside the kettle is less than the first preset temperature, and heating stops when the temperature inside the kettle is greater than or equal to the second preset temperature. In this embodiment, the first heating rate in the heating process is obtained to characterize the amount of water in the kettle: the temperature inside the kettle is obtained in real time, heating starts when the temperature inside the kettle is less than the first preset temperature, and heating stops when the temperature inside the kettle is greater than or equal to the second preset temperature, and the heating rate of the temperature inside the kettle from the first preset temperature to the second preset temperature is calculated; since the heating power is fixed to the preset power, therefore, in this embodiment, the heating rate characterizes the amount of water in the kettle; the greater the heating rate, the less the amount of water in the kettle, and the smaller the heating rate, the larger the amount of water in the kettle; after determining the heating rate, the insulation duration of the insulation stage is adjusted according to the heating rate.

[0046] In this embodiment, the second temperature rise rate in the heating process is obtained to characterize the amount of water in the kettle. After receiving the kettle lifting signal and the kettle putting signal in turn, heating is performed at the preset power to obtain the second temperature rise rate in the heating process. The heating process may start heating when the temperature in the kettle is lower than the first preset temperature, and stop heating when the temperature in the kettle is greater than or equal to the second preset temperature. When the second temperature rise rate is different from the first temperature rise rate, it is confirmed that the water in the electric kettle is used.

[0047] Based on this, as an exemplary embodiment, the heating rate is negatively correlated with the amount of water in the pot, and the heating rate is positively correlated with the insulation duration; adjusting the insulation duration of the insulation stage according to the amount of water in the pot includes: adjusting the insulation duration of the insulation stage based on the first heating rate, and the heating rate is negatively correlated with the insulation duration.

[0048] It should be understood that the first preset temperature and the second preset temperature can be the insulation start temperature and the insulation end temperature of the insulation stage; as another possible implementation method, the first preset temperature and the second preset temperature can also be the temperatures pre-set for the usage situation when it is recognized that the electric kettle is being used.

[0049] In this embodiment, in the insulation mode, the temperature is measured in real time, and the insulation duration is increased according to the heating rate for a larger amount of water in the pot corresponding to a smaller heating rate, and the insulation duration is reduced for a smaller amount of water in the pot corresponding to a larger heating rate, so as to realize automatic adjustment of the insulation duration.

[0050] As an exemplary embodiment, adjusting the insulation duration of the insulation stage based on the amount of water in the kettle and the usage information of the electric kettle includes: when the amount of water in the kettle is greater than a first preset water amount, and it is confirmed that the water in the electric kettle is used, increasing the insulation duration, and the first preset water amount is greater than the anti-dry boiling threshold water amount.

[0051] In this embodiment, when the water level in the kettle is greater than the anti-dry boiling threshold water level and it is confirmed that the water in the kettle is used, it is confirmed that the kettle is full of water and is in use. In order to extend the insulation time, the insulation duration is increased at this time.

[0052] Among them, the anti-dry-boiling threshold water volume can be a full kettle water volume near the rated water volume of the electric kettle; as a possible implementation method, the anti-dry-boiling threshold water volume can be any water volume in the range from three quarters of the rated capacity of the electric kettle to the rated capacity of the electric kettle.

[0053] As a possible implementation method, the amount of water in the electric kettle can be obtained in advance as the anti-dry boiling threshold water amount, and when heated at a preset power, the heating rate from the first preset temperature to the second preset temperature is used as the full pot threshold rate; after the electric kettle enters the insulation stage, the electric kettle is controlled to heat from the first preset temperature to the second preset temperature at the preset power, and the actual heating rate is recorded; the actual heating rate is compared with the full pot threshold heating rate, and when the actual heating rate is greater than the full pot threshold heating rate, it is confirmed that the water amount in the kettle is a full pot.

[0054] As a possible implementation method, the amount of water in the electric kettle can be obtained in advance as the anti-dry boiling threshold water amount, and when heated at a preset power, the heating time from the first preset temperature to the second preset temperature is used as the full pot threshold time; after the electric kettle enters the insulation stage, the electric kettle is controlled to heat from the first preset temperature to the second preset temperature at the preset power, and the actual heating time is recorded; the actual heating time is compared with the full pot threshold time, and when the actual heating time is greater than the full pot threshold time, it is confirmed that the water amount in the kettle is the full pot.

[0055] Exemplarily, the temperature sensor in the electric kettle is connected to the circuit board of the base through a coupler. Whether the water in the kettle is used can be detected by detecting the on / off status of the temperature sensor. Whether the water in the house is used can also be detected by detecting the heating time and / or whether there is a change from a first preset temperature to a second preset temperature when the electric kettle is heated at a preset power.

[0056] As an exemplary embodiment, it also includes: when the amount of water in the kettle is greater than a first preset water amount and it is confirmed that the water in the electric kettle is used, determining whether the current remaining insulation time is less than the preset time; when the current remaining insulation time is less than the preset time, increasing the insulation duration.

[0057] When the amount of water in the kettle is greater than the first preset water amount, and it is confirmed that the water in the electric kettle is being used, it is confirmed that the electric kettle is full of water and is being used; in this scenario, when the current remaining insulation time is less than the preset time, it is confirmed that the insulation time is about to end, and at this time, the insulation duration is increased to extend the insulation time.

[0058] As an exemplary embodiment, the method also includes: when confirming that the water in the electric kettle is used, obtaining the remaining water volume in the electric kettle after the water is used; when the remaining water volume is greater than a second preset water volume, increasing the insulation duration, wherein the second preset water volume is less than the first preset water volume.

[0059] As a possible implementation mode, when the amount of water in the kettle is greater than a first preset amount of water, and it is confirmed that the water in the electric kettle is being used, it is confirmed that the electric kettle is full of water and is being used; in this scenario, when the remaining water amount is greater than a second preset amount of water, it is confirmed that there is a larger amount of water in the electric kettle that is less than the full amount of water, and at this time, the insulation duration is increased to extend the insulation time.

[0060] Exemplarily, the second preset water volume may be any water volume within a range from half to three quarters of the rated water volume of the electric kettle.

[0061] As an exemplary embodiment, adjusting the insulation duration of the insulation stage according to the amount of water in the kettle includes: when the amount of water in the kettle is less than a first preset water amount; adjusting the insulation duration of the insulation stage based on the amount of water in the kettle, wherein the amount of water in the kettle is positively correlated with the insulation duration.

[0062] When the amount of water in the kettle is less than the first preset water amount, the amount of water in the kettle may be greater than the anti-dry-boiling threshold water amount but still in a state of less water, or the amount of water in the kettle may be less than the anti-dry-boiling threshold water amount but still in a state of greater water. Therefore, in order to adaptively adjust the insulation duration, when the amount of water in the kettle is less than the first preset water amount; the insulation duration of the insulation stage is adjusted based on the amount of water in the kettle, wherein the amount of water in the kettle is positively correlated with the insulation duration.

[0063] As an exemplary embodiment, adjusting the insulation duration of the insulation stage based on the water amount in the kettle includes: when the water amount in the kettle is less than a third preset water amount, reducing the insulation duration; when the water amount in the kettle is greater than the third preset water amount and less than the first preset water amount, maintaining the insulation duration unchanged; wherein the third preset water amount is greater than the anti-dry burning threshold water amount and less than the first preset water amount.

[0064] For the above scheme, when the water level in the pot is less than the third preset water level, it is confirmed that the water level in the pot is at less than half the water level in the pot, and the insulation duration is reduced at this time; as an exemplary embodiment, the insulation duration can be halved.

[0065] As an exemplary embodiment, when the water volume in the kettle is greater than the third preset water volume and less than the first preset water volume, it is confirmed that the water volume in the kettle is at most half of the kettle volume. At this time, the insulation duration is not adjusted and the insulation duration is kept unchanged; wherein, exemplarily, the third preset water volume is a value less than the third preset water volume; specifically, the third preset water volume can be any water volume in the range from half of the rated water volume of the electric kettle to three quarters of the rated water volume of the electric kettle; the third preset water volume can be equal to the second preset water volume.

[0066] As an exemplary embodiment, obtaining the amount of water in the electric kettle includes: obtaining the heating time for the electric kettle to heat up from a first preset temperature to a second preset temperature with a preset heating power; determining the amount of water in the kettle based on the heating time, wherein the heating time is positively correlated with the amount of water in the kettle.

[0067] In the insulation mode, the electric kettle starts heating when the preset temperature is lower than the first preset temperature, stops heating when the temperature is higher than the second preset temperature, and reheats when the temperature is lower than the first preset temperature again, repeating the cycle. Due to different water volumes, the temperature rise time from the first preset temperature to the second preset temperature is different. Based on this, the heating time for the electric kettle to heat up from the first preset temperature to the second preset temperature with the preset heating power is obtained, and the water volume in the kettle is determined based on the heating time.

[0068] Exemplarily, in the present application, the electric kettle is heated with a preset heating power and an anti-dry-boiling threshold water volume, and the heating time from the first preset temperature to the second preset temperature is recorded as the heating time with very little water. The electric kettle is heated with a preset heating power and a first preset water volume, and the heating time from the first preset temperature to the second preset temperature is recorded as the heating time with a full pot of water. The electric kettle is heated with a preset heating power and a third preset water volume, and the heating time from the first preset temperature to the second preset temperature is recorded as the heating time with half a pot of water.

[0069] Exemplarily, when the heating time is less than the heating time for a very small amount of water, it is determined that the amount of water in the pot is a very small amount of water; when the heating time is in an interval greater than the heating time for a very small amount of water and less than the heating time for half a pot of water, it is determined that the amount of water in the pot is less than half a pot of water; when the heating time is in an interval greater than the heating time for half a pot of water and less than the heating time for a full pot of water, it is determined that the amount of water in the pot is most of the pot; when the heating time is in an interval greater than the heating time for most of the pot of water, it is confirmed that the amount of water in the pot is a full pot of water.

[0070] As an exemplary embodiment, obtaining the amount of water in the electric kettle includes: obtaining a heating rate at which the electric kettle is heated from a first preset temperature to a second preset temperature at a preset heating power; determining the amount of water in the kettle based on the heating rate, wherein the heating rate is positively correlated with the amount of water in the kettle.

[0071] In the keep-warm mode, the electric kettle starts heating when the preset temperature is lower than the first preset temperature, stops heating when the temperature is higher than the second preset temperature, and reheats when the temperature is lower than the first preset temperature again, repeating the cycle. Due to different water volumes, the heating rates from the first preset temperature to the second preset temperature are different. Based on this, the heating time for the electric kettle to heat from the first preset temperature to the second preset temperature at the preset heating power is obtained, and the water volume in the kettle is determined based on the heating time.

[0072] Exemplarily, in the present application, the electric kettle is heated with a preset heating power and an anti-dry-boiling threshold water volume, and the heating rate from the first preset temperature to the second preset temperature is recorded as the very small water volume heating rate; the electric kettle is heated with a preset heating power and a first preset water volume, and the heating rate from the first preset temperature to the second preset temperature is recorded as the full pot water volume heating rate; the electric kettle is heated with a preset heating power and a third preset water volume, and the heating rate from the first preset temperature to the second preset temperature is recorded as the half pot water volume heating rate.

[0073] Exemplarily, when the heating rate is less than the heating rate of a very small amount of water, it is determined that the amount of water in the pot is a very small amount of water; when the heating rate is in an interval greater than the heating rate of a very small amount of water and less than the heating rate of half a pot of water, it is determined that the amount of water in the pot is less than half a pot of water; when the heating rate is in an interval greater than the heating rate of half a pot of water and less than the heating rate of a full pot of water, it is determined that the amount of water in the pot is most of the pot; when the heating rate is in an interval greater than the heating rate of most of the pot, it is confirmed that the amount of water in the pot is a full pot of water.

[0074] As an exemplary embodiment, the method further includes: obtaining the total insulation duration of the electric kettle in the insulation stage; when the total insulation duration is greater than the preset total insulation duration, outputting an alarm message.

[0075] In the long-term heat preservation state, bacteria or dust are easily bred in the water in the kettle; in order to avoid the above problems, the total heat preservation duration of the electric kettle in the heat preservation stage is obtained; when the total heat preservation duration is greater than the preset total heat preservation duration, an alarm message is output.

[0076] Exemplarily, the preset total insulation duration may be 24 hours; when the total insulation duration is greater than 24 hours, an alarm message is output.

[0077] Among them, as an exemplary embodiment, when the total insulation duration is longer than 24 hours, the insulation temperature and the insulation time are output alternately on the display screen.

[0078] As an exemplary embodiment, the method further includes: obtaining the actual temperature of water in the electric kettle; when the actual temperature is within a preset temperature range, controlling the electric kettle to heat at a preset power, wherein the preset power is less than the insulation power of the electric kettle.

[0079] During the insulation process, when the actual temperature is equal to the insulation temperature, the heating wire will stop heating, but the residual temperature of the heating wire is still very high and will continue to heat the bottom of the kettle. In order to avoid a large difference between the actual temperature and the insulation temperature, when the actual temperature is in a preset temperature range, the electric kettle is heated at a preset power, and the preset power is less than the insulation power of the electric kettle.

[0080] Among them, as an exemplary embodiment, the preset temperature range can be a range from a temperature value that is five degrees less than the insulation temperature value to the insulation temperature value.

[0081] As an exemplary embodiment, the method of obtaining the usage information of the electric kettle includes: after receiving the kettle lifting signal and the kettle placing signal in sequence, heating with the preset power to obtain a second heating rate during the heating process; when the second heating rate is different from the first heating rate, confirming that the water in the electric kettle is used.

[0082] As an exemplary embodiment, the method further includes: in the keep warm stage, when it is identified that the water in the electric kettle is used, reacquiring the amount of water in the electric kettle; and adjusting the keep warm duration of the keep warm stage based on the reacquired amount of water in the electric kettle.

[0083] With respect to the above technical solution, after the electric kettle is used, there are generally three situations in which the amount of water in the kettle changes: decrease, unchanged, and increase; at this time, the amount of water in the electric kettle is retrieved.

[0084] Exemplarily, when it is identified that the water in the electric kettle is being used, the heating time for the electric kettle to heat up from a first preset temperature to a second preset temperature with a preset heating power is obtained; the amount of water in the kettle is determined based on the heating time, and the insulation duration of the insulation stage is adjusted based on the regained amount of water in the kettle.

[0085] Exemplarily, taking the first preset temperature as TL, the second preset temperature as TH, the heating time for a very small amount of water as TIMEmin, the heating time for half a pot of water as TIMEmid, the heating time for a full pot of water as TIMEmax, the heating time as TIME, and the preset time as 2H as an example, the technical solution of the present application is explained.

[0086] As an exemplary embodiment, during the insulation process, the temperature inside the kettle is monitored, and the time to reach the set insulation temperature is accumulated. When the temperature is less than TL, heating starts and TIME is accumulated. When the temperature is greater than or equal to TH, heating is stopped and TIME stops accumulating. If TIME is less than TIMEmin, the electric kettle exits the insulation mode and enters the end state. If TIME is greater than TIMEmax, the current remaining insulation time is less than 2H and the water in the electric kettle is used, the insulation duration is increased by 2H. If TIME is greater than TIMEmin and less than TIMEmid, the insulation duration is halved. If TIME is less than TIMEmax and greater than the medium threshold TIMEmid, no action is taken.

[0087] As an exemplary embodiment, during the insulation process, the temperature inside the kettle is monitored, and the time to reach the set insulation temperature is accumulated. When the temperature is less than TL, heating starts and TIME is accumulated. When TIME is less than TIMEmin, the insulation state ends; when TIME is greater than TIMEmin and less than TIMEmid, the insulation time is halved; when TIME is greater than TIMEmid and less than TIMEmax, the normal insulation time is started; when TIME is greater than TIMEmax, the current remaining insulation time is less than 2H and the water in the electric kettle is used, the amount of water in the kettle is retrieved; if the amount of water in the kettle is still greater than half a kettle, it is considered that the kettle of water is in use, and the insulation duration is increased by 2H.

[0088] According to another aspect of the present application, an electric kettle is provided, comprising a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to perform the electric kettle heat preservation control method as described in any one of the above.

[0089] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0090] If the integrated units in the above embodiments are implemented in the form of software functional units and sold or used as independent products, they can be stored in the above computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for enabling one or more computer devices (which may be personal computers, servers, or network devices, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.

[0091] In the above embodiments of the present application, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0092] In the several embodiments provided in the present application, it should be understood that the disclosed client can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0093] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution provided in this embodiment.

[0094] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0095] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A method for controlling the heat preservation of an electric kettle, It is characterized in that include: After entering the heat preservation stage, obtaining the amount of water in the electric kettle and / or usage information of the electric kettle; When the amount of water in the kettle is greater than the anti-dry boiling threshold water amount, the insulation duration of the insulation stage is adjusted according to the amount of water in the kettle and / or the usage information of the electric kettle, wherein the insulation duration is positively correlated with the amount of water in the kettle.

2. The electric kettle heat preservation control method according to claim 1, It is characterized in that The obtaining of the amount of water in the electric kettle and / or the usage information of the electric kettle comprises: Heating is performed at a preset power to obtain a first temperature rise rate during the heating process to characterize the amount of water in the kettle and / or the usage information; The step of adjusting the duration of the heat preservation stage according to the amount of water in the kettle comprises: The insulation duration of the insulation stage is adjusted based on the first heating rate, and the heating rate is inversely correlated with the insulation duration.

3. The electric kettle heat preservation control method according to claim 1, It is characterized in that The step of adjusting the insulation duration of the insulation stage according to the amount of water in the kettle and the usage information of the electric kettle comprises: When the amount of water in the kettle is greater than a first preset amount of water, and it is confirmed that the water in the electric kettle is used, the insulation duration is increased, and the first preset amount of water is greater than the anti-dry boiling threshold amount of water.

4. The electric kettle heat preservation control method according to claim 3, It is characterized in that Also includes: When the amount of water in the kettle is greater than a first preset amount of water and it is confirmed that the water in the electric kettle is used, determining whether the current remaining insulation time is less than a preset time; When the current remaining insulation time is less than the preset time, the insulation duration is increased.

5. The electric kettle heat preservation control method according to claim 4, It is characterized in that The method further comprises: When confirming that the water in the electric kettle has been used, obtaining the remaining amount of water in the electric kettle after the water has been used; When the remaining water volume is greater than a second preset water volume, the heat preservation duration is increased, wherein the second preset water volume is less than the first preset water volume.

6. The electric kettle heat preservation control method according to claim 4, It is characterized in that The step of adjusting the duration of the heat preservation stage according to the amount of water in the kettle comprises: When the amount of water in the kettle is less than a first preset amount of water; The insulation duration of the insulation stage is adjusted based on the amount of water in the kettle, wherein the amount of water in the kettle is positively correlated with the insulation duration.

7. The electric kettle heat preservation control method according to claim 6, It is characterized in that The step of adjusting the insulation duration of the insulation stage based on the amount of water in the kettle comprises: When the amount of water in the kettle is less than a third preset amount of water, reducing the insulation duration; When the amount of water in the kettle is greater than the third preset water amount and less than the first preset water amount, the insulation duration is kept unchanged; wherein the third preset water amount is greater than the anti-dry boiling threshold water amount and less than the first preset water amount.

8. The electric kettle heat preservation control method according to claim 1, It is characterized in that The method further comprises: Get the total insulation duration of the electric kettle in the insulation stage; When the total insulation duration is greater than the preset total insulation duration, an alarm message is output.

9. The electric kettle heat preservation control method according to claim 2, It is characterized in that The obtaining of the usage information of the electric kettle comprises: After receiving the kettle lifting signal and the kettle putting signal in sequence, heating is performed at the preset power to obtain a second temperature rise rate in the heating process; When the second temperature increase rate is different from the first temperature increase rate, it is confirmed that the water in the electric kettle is used.

10. An electric kettle, It is characterized in that The electric kettle comprises a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to perform the electric kettle heat preservation control method as described in any one of claims 1-9.

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