Intelligent sterilization method of liquid heater with heat preservation function

Abstract

The invention belongs to the technical field of small household appliances, and discloses an intelligent sterilization method of a liquid heater with a heat preservation function, which comprises the following steps: step 100: dividing the time of one day into n continuous time periods, namely t1, t2... tn, a busy time period marked with a use record and an idle time period marked with an unused record, and storing and recording; 200, the sterilization temperature is set to be T1, and the safe heat preservation time is set to be Y; 300, when the liquid heater is used, the heat preservation temperature is recorded as T2, the continuous heat preservation time is timed and recorded as Z, when T2 is smaller than T1 and Z is larger than or equal to Y, the sterilization function is started, heating sterilization is conducted in the idle time period, and the step 400 is executed; 400, after the liquid is heated and sterilized, continuous heat preservation is conducted for Z, timing is started again, and the step 300 is executed again. According to the use habit of the user, sterilization and disinfection are carried out in time under the condition that normal use of the user is not influenced.

Description

Technical Field

[0001] The invention relates to the technical field of household appliances, and in particular to an intelligent sterilization method of a liquid heater with a heat preservation function. Background Art

[0002] Existing liquid heaters include a heating device and a container. General liquid heaters have a heat preservation function. By setting the heat preservation temperature and comparing whether there is a difference between the set heat preservation temperature and the collected temperature, the heating device is controlled to heat and maintain the temperature at the heat preservation temperature. However, existing liquid heaters lack effective sterilization methods. This problem is particularly prominent in liquid heaters used by infants and young children. Existing liquid heaters have a wide range of heat preservation, which can be raised from room temperature to 100°C, and can be kept warm for a long time, even for more than 24 hours. However, it is easy to breed bacteria if the temperature is kept below 70°C for a long time, especially when the water temperature for preparing infant formula is about 50°C. This brings challenges to the hygiene and safety of infant food.

[0003] For example, Chinese patent 202210344026.2, entitled "Liquid Heating Container, Control Method Thereof, and Computer-readable Storage Medium", discloses a control method for a liquid heating container, the liquid heating container comprising a heating device and a container, the control method comprising: collecting an initial temperature, the initial temperature being the temperature of the liquid in the container before the heating device is operated; obtaining temperature mapping information, the temperature mapping information recording a mapping relationship between the initial temperature and the insulation temperature; determining the insulation temperature corresponding to the initial temperature according to the initial temperature and the temperature mapping information; and controlling the operation of the heating device according to the determined insulation temperature to keep the liquid in the container at the insulation temperature. However, in the prior art, the liquid is kept in an insulation state for a long time, and bacteria are easily bred in the liquid. Summary of the invention

[0004] In order to overcome the deficiency of the liquid heater in the prior art that there is no sterilization method, the present invention provides an intelligent sterilization method for a liquid heater with a heat preservation function, which can sterilize and disinfect the liquid in time according to the user's usage habits without affecting the user's normal use.

[0005] In order to achieve the above object, the present invention adopts the following technical solution: an intelligent sterilization method of a liquid heater with a heat preservation function, comprising the following steps: Step 100: Divide a day into n consecutive time periods, t 1 ,t 2 ……t nAfter the liquid heater is turned on, the time period with usage records is marked as the busy time period, and the time period without use is marked as the idle time period, and the records are stored; Step 200: Set the liquid sterilization temperature to T 1 , set the safe insulation time of the liquid to Y; Step 300: When the liquid heater is used, the liquid insulation temperature is denoted as T 2 , the continuous insulation time of the liquid is counted and recorded as Z. When T 2 <T 1 , and Z ≥ Y, start the sterilization function, heat and sterilize the liquid during the idle time period, and execute step 400; Step 400: After the liquid is heated and sterilized, the continuous heat preservation time Z is restarted and the process returns to step 300.

[0006] In the above technical solution, a day is divided into continuous time periods. The time periods with usage records are marked by the program, and the time periods with usage records are marked as busy time periods, and the time periods without usage are marked as idle time periods. Starting the sterilization function during the idle time period can avoid interfering with the normal use of the user, thereby ensuring the user's good experience and convenience of using the liquid heater. In addition, by comparing the insulation temperature T of the liquid 2 With the set sterilization temperature T 1 The continuous heat preservation time Z and the set safe heat preservation time Y realize the judgment of sterilization conditions. Specifically, when the heat preservation temperature of the liquid is T 2 Less than sterilization temperature T 1 When the continuous heat preservation time Z is greater than or equal to the safe heat preservation time Y, the sterilization function is activated. This can avoid the situation where the liquid temperature exceeds or equals the sterilization temperature T 1 When the continuous holding time Z is less than the safe holding time Y, there is not enough time for bacteria to multiply in the liquid, so sterilization is not required. 2 <T 1 And the sterilization function will be activated only under the condition of Z≥Y, avoiding unnecessary energy consumption and further improving the environmental performance of the product. In addition, after the liquid is heated and sterilized, the continuous insulation time Z will be restarted and recorded and updated. By re-timing the continuous insulation time, it is ensured that Z can be restored to the initial state, so that Z is not always greater than Y, and the sterilization function is activated when necessary. This ensures that the sterilization function of the liquid heater works normally and can effectively sterilize the liquid in time. It should be noted that step 100 is always running when the liquid heater is turned on.

[0007] The present invention is further configured as follows: in step 300, each time the liquid is heated to boiling, the continuous heat preservation time Z is restarted.

[0008] In the above technical solution, when the liquid boils, it has a sterilization effect on the liquid. If the continuous insulation time Z is not restarted, the interval between two sterilizations has not reached the safe insulation time Y. At this time, starting the next sterilization function will only waste energy. By restarting the continuous insulation time Z, the continuous insulation time Z is restored to the initial state, avoiding unnecessary heating process, reducing energy waste, and thus achieving the effect of saving energy.

[0009] The present invention is further configured as follows: the liquid is heated from the insulation temperature T 2 Heat to sterilization temperature T1 and then cool to insulation temperature T 2 The length of time is recorded as X, and a day is evenly divided into n continuous time periods. The length of each time period is recorded as W, and W≥X. In step 300, after the sterilization function is started, at the beginning of the next idle time period, the heating component is started to heat and sterilize the liquid.

[0010] In the above technical solution, W ≥ X, that is, each idle time period must be greater than or equal to X, which means that the sterilization function is started at the beginning of the idle time period. During this idle time period, the liquid heater has completed the sterilization and cooled to the insulation temperature T 2 , will not affect the normal use of users, and can ensure the user experience. It should be noted that X is the temperature of the liquid from the insulation temperature T 2 Heat to sterilization temperature T 1 Maximum time plus sterilization temperature T 1 Then cool down to the insulation temperature T 2 The duration of the time maximum.

[0011] The present invention is further configured as follows: the liquid is heated from the insulation temperature T 2 Heat to sterilization temperature T 1 The time length of cooling to the insulation temperature T2 is recorded as X. After the sterilization function is started, the following steps are included: Step 301: The length of the next idle time period or the total length of the next multiple consecutive idle time periods is recorded as L; Step 302: If L≥X, start the heating component to perform heating sterilization and jump to step 400; if L<X, jump back to step 301 after the next busy time period ends.

[0012] In the above technical solution, for the division of time periods, the length of a single time period may be less than X, which means that the length of a single idle time period may always be less than X. By setting the length of the next idle time period or the total length of the next multiple continuous idle time periods as L, the condition for determining whether to start the sterilization function is L≥X. When a single idle time period is less than X, the idle time period can be superimposed on the next continuous idle time period. If it still does not meet the start condition, the continuous idle time periods are superimposed until L≥X, and the sterilization function is started for sterilization. By setting the length of the next idle time period or the total length of the next multiple continuous idle time periods as L, the time period can be divided equally or unequally. The length of a single time period can be greater than or equal to X, or the length of a single time period can be less than X. As long as L≥X is met, liquid sterilization can be completed without interfering with the normal use of the user, making the division of time periods more flexible. The time period can be divided according to the usage habits of the target users of the liquid heater, so that the division of time periods is closer to the user's usage habits, reducing the possibility of conflict between the sterilization function and the normal use of the user, and ensuring the user experience.

[0013] The present invention is further configured as follows: X can be determined based on the heating power of the liquid heater, the mass of the liquid in the liquid heater, and the current insulation temperature of the liquid, which is denoted as T 2 With sterilization temperature T 1 The difference in temperature ΔT is calculated.

[0014] In the above technical solution, by reasonably calculating the time required for heating and cooling the liquid, it is avoided that the liquid has not been heated from the insulation temperature T2 to the sterilization temperature T1 and then cooled to the insulation temperature T2 during the idle time period, thereby reducing the possibility of misjudgment and minimizing interference with normal user use.

[0015] The present invention is further configured as follows: in step 100, the busy time period needs to be marked for m consecutive days, and the data of the m+1th day overwrites the data of the first day.

[0016] In the above technical solution, by marking m consecutive days, the sample size is increased, the impact of random errors is reduced, and the statistical results are made more stable and reliable, which in turn makes the statistical values ​​closer to the user's usage habits, reduces the possibility that the activation of the sterilization function affects the user's normal use, and improves the user experience. At the same time, the data of the first day is overwritten by the data of the m+1th day, and the original data is updated. By overwriting the data of the first day, it can be ensured that the recorded data is close to the user's recent behavior habits, ensuring the real-time nature of the data. Avoid misjudgment due to outdated data, further reduce the possibility that the activation of the sterilization function affects the user's normal use, and improve the user experience.

[0017] The present invention is further configured as follows: among m consecutive days, any day in a time period with a usage record is marked as a busy time period.

[0018] In the above technical solution, by marking the time period with usage records on any day as a busy time period, even if there is only a usage record on one day out of m consecutive days, the time period can be marked as a busy time period, thereby reducing the possibility of the sterilization function affecting the normal use of the user, thereby improving the user experience. In addition, by marking the time period with usage records on any day as a busy time period, it can adapt to the usage habits and time patterns of different users. Even if the user's usage frequency is low or irregular, as long as there is a usage record on any day out of m consecutive days, the system can still determine that the time period is a busy time period. This can better match the user's behavior pattern and improve the system's adaptability to users and humanized experience.

[0019] The present invention is further configured as follows: the sterilization temperature T in step 200 is 1 Manually set after shipment or built-in before shipment.

[0020] In the above technical solution, the sterilization temperature T 1 It can be built-in before the product leaves the factory, or it can be adjusted manually after the product leaves the factory. Built-in sterilization temperature T 1 This means that when the product leaves the factory, the manufacturer has already predetermined a sterilization temperature T suitable for the product. 1 The sterilization temperature T 1 It is determined according to the characteristics of the product, the composition of the liquid and the relevant safety and hygiene standards. The user does not need to manually adjust the sterilization temperature T during use. 1 , the product will be sterilized according to the built-in sterilization temperature T 1 Another situation is that after the product leaves the factory, the user can manually set the sterilization temperature T according to their own needs and requirements. 1 This flexibility allows users to adjust the sterilization temperature according to the specific usage scenario and the characteristics of the liquid to achieve better sterilization results. Users can set the corresponding settings on the device as needed, and then use the manually set temperature during the sterilization process. Whether the sterilization temperature T is set manually or built-in 1 , are all helpful in ensuring that the liquid is effectively sterilized.

[0021] The present invention is further configured as follows: the safe heat preservation time Y in step 200 is manually set after leaving the factory or built-in before leaving the factory.

[0022] In the above technical solution, the safe heat preservation time Y can be built-in before the product leaves the factory, or it can be adjusted by manual settings after the product leaves the factory. The built-in safe heat preservation time Y means that when the product leaves the factory, the manufacturer has predetermined a safe heat preservation time Y suitable for the product. This safe heat preservation time Y is determined based on the characteristics of the product, the composition of the liquid, and relevant safety and hygiene standards. The user does not need to manually adjust the safe heat preservation time Y during use, and the product will perform heat preservation operations according to the built-in safe heat preservation time Y. Another situation is that after the product leaves the factory, the user can manually set the safe heat preservation time Y according to their own needs and requirements. This flexibility allows the user to adjust the safe heat preservation time Y according to the specific usage scenario and the characteristics of the liquid to maximize the temperature stability and safety of the liquid. The user can make corresponding settings on the device, and then use the manually set safe heat preservation time Y during the heat preservation process.

[0023] The present invention is further configured as follows: in step 200, the maximum heat preservation time of the liquid is set to V, and each time the liquid is heated to boiling or sterilization temperature, the maximum heat preservation time V is restarted. 2 <T 1 , and when Z ≥ V, the heating component is forced to start to heat and sterilize the liquid.

[0024] In the above technical solution, the liquid heater is in a busy period for a long period of time, but the user does not use the liquid heater to heat the liquid. The liquid is kept at a warm temperature for a long time, and bacteria grow in the liquid. The user may have a safety hazard when using the liquid in this state. By setting the maximum warm-keeping time of the liquid to V, and when T 2 <T 1 , and when Z ≥ V, the heating component is forced to start to heat and sterilize the liquid to ensure the safety of the liquid, thereby improving the user experience.

[0025] The beneficial effect of the present invention is that a day is divided into continuous time periods by recording the user's usage time period through a program, and the time period with usage records is marked as a busy time period, and the time period without usage is marked as an idle time period. Starting the sterilization function during the idle time period can avoid interference with the user's normal use, thereby ensuring the user's good experience and convenience of use of the liquid heater. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a flow chart of a method for implementing intelligent sterilization at home according to the present invention. DETAILED DESCRIPTION

[0027] In the description of this embodiment, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "back", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore, cannot be understood as limiting the present invention. In addition, if the terms "first", "second", and "third" appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0028] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0029] Embodiment 1: An intelligent sterilization method for a liquid heater with a heat preservation function comprises the following steps: Step 100: Divide a day into n consecutive time periods, t 1 ,t 2 ……t n After the liquid heater is turned on, the time period with usage records is marked as a busy time period by using a program, and the time period without usage is marked as an idle time period, and the records are stored; Step 200: Set the liquid sterilization temperature to T 1 , set the safe insulation time of the liquid to Y; Step 300: When the liquid heater is used, the liquid insulation temperature is denoted as T 2 , the continuous insulation time of the liquid is counted and recorded as Z. When T 2 <T 1 , and Z ≥ Y, start the sterilization function, heat and sterilize the liquid during the idle time period, and execute step 400; Step 400: After the liquid is heated and sterilized, the continuous heat preservation time Z is restarted and the process returns to step 300.

[0030] In this embodiment, a day is divided into continuous time periods. The time periods with usage records are marked by the program, and the time periods with usage records are marked as busy time periods, and the time periods without usage are marked as idle time periods. Starting the sterilization function in the idle time period can avoid interference with the normal use of the user, thereby ensuring the user's good experience and convenience of using the liquid heater. In addition, by comparing the insulation temperature T of the liquid 2 With the set sterilization temperature T 1 The continuous heat preservation time Z and the set safe heat preservation time Y realize the judgment of sterilization conditions. Specifically, when the heat preservation temperature of the liquid is T 2 Less than sterilization temperature T 1When the continuous heat preservation time Z is greater than or equal to the safe heat preservation time Y, the sterilization function is activated. This can avoid the situation where the liquid temperature exceeds or equals the sterilization temperature T 1 When the continuous holding time Z is less than the safe holding time Y, there is not enough time for bacteria to multiply in the liquid, so sterilization is not required. 2 <T 1 And the sterilization function will be activated only under the condition of Z≥Y, thus avoiding unnecessary energy consumption and further improving the environmental performance of the product. In addition, after the liquid is heated and sterilized, the continuous insulation time Z will be restarted and recorded and updated. By re-timing the continuous insulation time, it is ensured that Z can be restored to the initial state, so that Z is not always greater than Y, and the sterilization function is activated when necessary. This ensures that the sterilization function of the liquid heater works normally and can effectively sterilize the liquid in time. It should be noted that step 100 is always running when the liquid heater is turned on; secondly, the usage record in step 100 refers to the record of the user's operation of the liquid heater, such as pouring liquid, adding liquid, and heating liquid.

[0031] In this embodiment, the sterilization temperature T in step 200 is 1 Built-in before leaving the factory. The built-in sterilization temperature T1 means that when the product leaves the factory, the manufacturer has predetermined a sterilization temperature T1 suitable for the product. This sterilization temperature T1 is determined based on the characteristics of the product, the composition of the liquid, and relevant safety and hygiene standards. The user does not need to manually adjust the sterilization temperature T1 during use, the product will perform sterilization operations according to the built-in sterilization temperature T1.

[0032] It is understandable that in another embodiment, the sterilization temperature T in step 200 is 1 Manual setting after leaving the factory. After the product leaves the factory, users can manually set the sterilization temperature T according to their needs and requirements. 1 This flexibility allows users to adjust the sterilization temperature T according to the specific usage scenario and the characteristics of the liquid. 1 , in order to achieve better sterilization effect. Users can make corresponding settings on the device as needed, and then use the manually set sterilization temperature T during the sterilization process. 1 .

[0033] It should be noted that whether the sterilization temperature T is set internally or manually 1 , we must ensure that the liquid is effectively sterilized.

[0034] In this embodiment, the safe heat preservation time Y in step 200 is built-in before leaving the factory. The built-in safe heat preservation time Y means that when the product leaves the factory, the manufacturer has predetermined a safe heat preservation time Y suitable for the product. This safe heat preservation time Y is determined based on the characteristics of the product, the composition of the liquid, and relevant safety and hygiene standards. The user does not need to manually adjust the safe heat preservation time Y during use, and the product will perform the heat preservation operation according to the built-in safe heat preservation time Y.

[0035] It is understood that in another embodiment, another situation is that after the product leaves the factory, the user can manually set the safe heat preservation time Y according to their own needs and requirements. This flexibility allows the user to adjust the safe heat preservation time Y according to the specific usage scenario and the characteristics of the liquid to maximize the temperature stability and safety of the liquid. The user can make corresponding settings on the device and then use the manually set safe heat preservation time Y during the heat preservation process.

[0036] It should be noted that whether the safe insulation time Y is built-in or manually set, it should be based on the premise of ensuring the safety of the user's use of the liquid heater. For example, when the continuous insulation time Z is 50°C, it can be safely kept warm for about 4-6 hours; when the continuous insulation time Z is 50°C, it can be safely kept warm for about 1-2 hours. It can be understood that the safe insulation time Y is multiple times, and each safe insulation time Y corresponds to a different continuous insulation time Z. By identifying the current continuous insulation time Z, a different safe insulation time Y can be selected.

[0037] Specifically, in step 300, each time the liquid is heated to boiling, the continuous heat preservation time Z is restarted. When the liquid boils, the liquid has been sterilized. If the continuous heat preservation time Z is not restarted, the interval between two sterilizations has not reached the safe heat preservation time Y. At this time, starting the next sterilization function will only waste energy. By restarting the continuous heat preservation time Z, the continuous heat preservation time Z is restored to the initial state, avoiding unnecessary heating process, reducing energy waste, and thus achieving the effect of saving energy consumption.

[0038] In order to start the sterilization function more reasonably, the liquid is heated from the insulation temperature T 2 Heat to sterilization temperature T 1 Then cool down to the insulation temperature T 2The length of time is recorded as X, and a day is evenly divided into n consecutive time periods, and the length of each time period is recorded as W, and W ≥ X. In step 300, after the sterilization function is started, at the beginning of the next idle time period, the heating component is started to heat and sterilize the liquid. Make W ≥ X, that is, each idle time period must be greater than or equal to X, which means that the sterilization function is started at the beginning of the idle time period, and in this idle time period, the liquid heater has completed the sterilization and cooled down to the insulation temperature T 2 , will not affect the normal use of users, and can ensure the user experience. It should be noted that X is the temperature of the liquid from the insulation temperature T 2 Heat to sterilization temperature T 1 Maximum time plus sterilization temperature T 1 The time length for cooling down to the maximum value of the insulation temperature T2.

[0039] In this embodiment, Figure 1 As shown, the following steps are included; 1: T 2 <T 1 , execute step 2; 2: Z = Q a+1 +Q a+2 +…+Q b , execute step 3; 3: If Z ≥ Y, execute step 4; if Z < Y, then b = b + 1 and execute step 2; 4: Determine t b Whether the time period is marked as used. If it is marked as used, then b=b+1, Z=Q a+1 +Q a+2 +…+Q b , proceed to step 5. If there is no mark used, proceed to step 5; 5: D 1 =Q a+1 +Q a+2 +…+Q b+1 , proceed to step 7; 6: If D 1 -Z≥X, start the heating sequence, if D 1 -Z is less than X, then b=b+1, and go to step 6.

[0040] Among them, Q a is the length of time for heating to boiling or heating to sterilization temperature, t b is the current time period; Q b is the length of the current time period; D 1 -Z is the next idle time length.

[0041] It can be understood that, in another embodiment, the liquid is heated from the insulation temperature T2 Heat to sterilization temperature T 1 Then cool down to the insulation temperature T 2 The length of time is recorded as X. After the sterilization function is started, the following steps are included: Step 301: The length of the next idle time period or the total length of the next multiple consecutive idle time periods is recorded as L; Step 302: If L≥X, the heating component is started for heating and sterilization, and the process jumps to step 400. If L<X, the process jumps back to step 301 after the next busy time period ends. For the division of time periods, the length of a single time period may be less than X, which means that the length of a single idle time period may always be less than X. By setting the length of the next idle time period or the total length of the next multiple consecutive idle time periods as L, the condition for determining whether to start the sterilization function is L≥X. When a single idle time period is less than X, the idle time period can be superimposed on the next consecutive idle time period. If the start condition is still not met, the consecutive idle time periods are continuously superimposed until L≥X, and the sterilization function is started for sterilization. By setting the length of the next idle time period or the total length of the next multiple consecutive idle time periods as L, the time period can be evenly divided or unequally divided. The length of a single time period can be greater than or equal to X, or the length of a single time period can be less than X. As long as L≥X is met, liquid sterilization can be completed without interfering with the normal use of the user, making the division of time periods more flexible. The time periods can be divided according to the usage habits of the target users of the liquid heater, so that the division of time periods is closer to the user's usage habits, reducing the possibility of conflict between the sterilization function and the user's normal use, and ensuring the user experience.

[0042] Wherein, X can be calculated based on the heating power of the liquid heater, the mass of the liquid in the liquid heater, and the current insulation temperature of the liquid, which is denoted as T2, and the sterilization temperature, which is denoted as T 1 By properly calculating the time required for heating and cooling the liquid, it is possible to avoid the liquid not yet reaching the insulation temperature T during the idle time. 2 Heat to sterilization temperature T 1 Then cool down to the insulation temperature T 2 , reducing the possibility of misjudgment and minimizing interference with users' normal use.

[0043] Specifically, the theoretical value of X can be calculated by the following formula, T 1 =(m*c*ΔT) / P 1 ;t 2 =(m*c*ΔT) / P 2 ; X = T 1 +t2 Where, T 1 is the current insulation temperature T 2 Heat up to sterilization temperature T 1 time; t 2 is the sterilization temperature T 1 Cool down to the insulation temperature T 2 time; P 1 is the heating power of the liquid heater; P 2 is the heat dissipation power of the liquid heater; m is the mass of the liquid, ΔT is T 2 With sterilization temperature T 1 The difference temperature ΔT. m can be obtained by installing an electronic scale at the bottom of the liquid heater, or according to the theoretical capacity of the liquid heater.

[0044] It should be noted that the calculated X is only a theoretical value and may be different in actual applications.

[0045] Specifically, in step 100, it is necessary to mark the busy time period for m consecutive days, and the data of the m+1th day will overwrite the data of the first day. By marking for m consecutive days, the sample size is increased, the impact of random errors is reduced, and the statistical results are made more stable and reliable, which in turn makes the statistical values ​​closer to the user's usage habits, reduces the possibility that starting the sterilization function will affect the user's normal use, and improves the user experience. At the same time, the data of the m+1th day will overwrite the data of the first day, and the original data will be updated. By covering the data of the first day, it can be ensured that the recorded data is close to the user's recent behavior habits, ensuring the real-time nature of the data. Avoid misjudgment due to outdated data, further reduce the possibility that starting the sterilization function will affect the user's normal use, and improve the user experience.

[0046] More specifically, if there is a usage record on any day in a time period during m consecutive days, it is marked as a busy time period. By marking the time period with a usage record on any day as a busy time period, even if there is a usage record on only one day during the m consecutive days, the time period can be marked as a busy time period, thereby reducing the possibility of the sterilization function affecting the normal use of users, thereby improving the user experience. In addition, by marking the time period with a usage record on any day as a busy time period, it can adapt to the usage habits and time patterns of different users. Even if the user's usage frequency is low or irregular, as long as there is a usage record on any day during the m consecutive days, the system can still determine that the time period is a busy time period. This can better match the user's behavior pattern and improve the system's adaptability and humanized experience to users.

[0047] It can be understood that in another embodiment, among m consecutive days, any two consecutive days with usage records in a time period are marked as a busy time period.

[0048] It can be understood that in another embodiment, among m consecutive days, any two days in a time period with usage records are marked as a busy time period.

[0049] It should be noted that, in the m consecutive days, the busy time period marking rule is based on the principle of reducing the possibility of affecting the normal use of users.

[0050] In order to improve the safety of users using liquids, in step 200, the maximum insulation time of the liquid is set to V. Each time the liquid is heated to boiling or sterilization temperature, the maximum insulation time V is restarted. 2 <T 1 , and Z ≥ V, the heating component is forced to start heating and sterilizing the liquid. When the liquid heater is in a busy period for a long period of time, but the user does not use the liquid heater to heat, the liquid is kept at a warm temperature for a long time, and bacteria grow in the liquid. If the user uses the liquid in this state, there may be safety hazards. By setting the maximum warming time of the liquid to V, and when T 2 <T 1 , and when Z ≥ V, the heating component is forced to start to heat and sterilize the liquid to ensure the safety of the liquid, thereby improving the user experience.

[0051] The specific description of the present invention in the above embodiments is only used to further illustrate the present invention and cannot be understood as limiting the scope of protection of the present invention. Technical engineers in this field may make some non-essential improvements and adjustments to the present invention based on the contents of the above invention, which fall within the scope of protection of the present invention.

Claims

1. An intelligent sterilization method for a liquid heater with a heat preservation function, characterized in that: The following steps are involved: Step 100: Divide a day into n consecutive time periods, namely t1, t2, ..., t n ,After the liquid heater is turned on, the time period marked with usage records is ,recorded as a busy time period, and the time period not used is ,recorded as an idle time period, and stored and recorded; Step 200: setting the liquid sterilization temperature to T1 and the liquid safe heat preservation time to Y; Step 300: When the liquid heater is used, the liquid insulation temperature is recorded as T2, and the continuous insulation time of the liquid is timed and recorded as Z. When T2<T1, and Z≥Y, the sterilization function is started, the liquid is heated and sterilized in the idle time period, and step 400 is executed; Step 400: After the liquid is heated and sterilized, the continuous heat preservation time Z is restarted and the process returns to step 300.

2. The intelligent sterilization method of a liquid heater with heat preservation function according to claim 1 is characterized in that: In step 300, each time the liquid is heated to boiling, the continuous heat preservation time Z starts again.

3. The intelligent sterilization method of a liquid heater with heat preservation function according to claim 1 is characterized in that: The length of time it takes for the liquid to be heated from the insulation temperature T2 to the sterilization temperature T1 and then cooled to the insulation temperature T2 is recorded as X. A day is evenly divided into n consecutive time periods, the length of each time period is recorded as W, and W≥X. In step 300, after the sterilization function is started, at the beginning of the next idle time period, the heating component is started to heat and sterilize the liquid.

4. The intelligent sterilization method of a liquid heater with heat preservation function according to claim 1 is characterized in that: The time length of the liquid from the heat preservation temperature T2 to the sterilization temperature T1 and then cooling to the heat preservation temperature T2 is recorded as X. After the sterilization function is started, the following steps are included: Step 301: The length of the next idle time period or the total length of the next multiple consecutive idle time periods is recorded as L; Step 302: If L≥X, start the heating component to perform heating sterilization and jump to step 400; if L<X, jump back to step 301 after the next busy time period ends.

5. The intelligent sterilization method of a liquid heater with heat preservation function according to claim 3 or 4, characterized in that: The X can be calculated according to the heating power of the liquid heater, the mass of the liquid in the liquid heater, and the difference temperature ΔT between the current insulation temperature of the liquid, which is recorded as T2, and the sterilization temperature, which is recorded as T1.

6. The intelligent sterilization method of a liquid heater with heat preservation function according to claim 1, characterized in that: In step 100, the busy time period needs to be marked for m consecutive days, and the data of the m+1th day overwrites the data of the first day.

7. The intelligent sterilization method of a liquid heater with heat preservation function according to claim 6 is characterized in that: If there is usage record on any day in a time period during m consecutive days, it is marked as a busy time period.

8. The intelligent sterilization method of a liquid heater with heat preservation function according to claim 1, characterized in that: The sterilization temperature T1 in step 200 is manually set after leaving the factory or built-in before leaving the factory.

9. The intelligent sterilization method of a liquid heater with heat preservation function according to claim 1, characterized in that: The safety insulation time Y in step 200 is manually set after leaving the factory or built-in before leaving the factory.

10. The intelligent sterilization method of a liquid heater with heat preservation function according to claim 1, characterized in that: In step 200, the maximum insulation time of the liquid is set to V. Each time the liquid is heated to boiling or sterilization temperature, the maximum insulation time V is restarted. When T2<T1 and Z≥V, the heating component is forced to start to heat and sterilize the liquid.

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