Liquid heater and heat preservation self-adaption method thereof
By using the integral method to update the insulation power during the insulation stage of the liquid heater, problems such as excessive temperature flushing and high noise are solved, and efficient insulation effect is achieved, power consumption and component losses are reduced, and user experience is improved.
Patent Information
- Application Number
- CN202311215616.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-09-20
- Publication Date
- 2025-03-21
AI Technical Summary
During automatic insulation, existing liquid heaters have problems such as excessive temperature flushing, intermittent heating, high noise and high power, resulting in excessive power consumption and serious component loss, affecting the user experience.
By calculating the temperature difference between the preset insulation temperature and the measured temperature during the insulation stage, and continuously updating the current insulation power using the integral method, the balance between dissipation and heating of the liquid heater during the insulation process is achieved, and the preset insulation temperature is maintained stably.
It effectively reduces the heating power required for the liquid heater to maintain the preset insulation temperature, reduces noise and thyristor temperature, avoids excessive power consumption and component loss, improves insulation accuracy and efficiency, reduces production and use costs, and improves user experience.
Smart Images
Figure CN119655608A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of cooking appliances, and in particular to a liquid heater and a heat preservation adaptive method thereof. Background Art
[0002] Among existing products, liquid heating containers such as kettles, water bottles, and health pots usually have an automatic heat preservation function, that is, the container can stop heating when the liquid is heated to the target heating temperature or above the boiling point, and start heating again at a constant power when the liquid temperature drops below the set temperature. However, when the amount of liquid in the container is small, or the ambient temperature difference is large, or the container operating voltage is high, these unstable factors will cause defects such as excessive temperature surge, frequent intermittent heating, large temperature fluctuations, and loud heating noise, and correspondingly cause problems such as excessive power consumption of the heating container, serious wear and tear of components, and affected user experience. Summary of the invention
[0003] The purpose of this application is to provide a liquid heater and its heat preservation adaptive method, which continuously updates the current heat preservation power through the integral method, and finally obtains the heat preservation power that makes the liquid heater dissipate and heat in balance to stably maintain the preset heat preservation temperature. Therefore, this application has the advantages of reducing noise and power, improving heat preservation accuracy, and reducing production cost and use cost.
[0004] The embodiment of the present application is implemented as follows:
[0005] A first aspect of an embodiment of the present application provides an insulation adaptive method for a liquid heater, the method comprising: in an insulation stage, calculating the temperature difference between a preset insulation temperature and an actual temperature at a preset frequency; when the temperature difference is within a first preset temperature difference range, continuously updating the current insulation power according to the temperature difference and an integration method until the insulation state corresponding to the current insulation power meets a preset constant temperature condition.
[0006] In one embodiment, when the temperature difference is within a first preset temperature difference range, the current insulation power is continuously updated by an integration method until the insulation state corresponding to the current insulation power meets the preset constant temperature condition, including: integrating the temperature difference by an integration method according to a known target integral coefficient to obtain an insulation power adjustment value; adjusting the current insulation power of the liquid heater based on the insulation power adjustment value until the current insulation state corresponding to the current insulation power meets the preset constant temperature condition.
[0007] In one embodiment, before integrating the temperature difference by an integration method according to a known target integral coefficient to obtain a heat preservation power adjustment value, the method also includes: searching for at least one integral coefficient based on a current heating model, the current heating model being used to characterize the configuration conditions of the liquid heater under the current heating state; among all the integral coefficients, marking the integral coefficient with the smallest value as the target integral coefficient.
[0008] In one embodiment, the temperature difference is integrated by an integration method according to a known target integral coefficient to obtain a heat preservation power adjustment value, including: according to the formula Calculate the insulation power adjustment value; where ΔP is the insulation power adjustment value, in watts; t1 is the second endpoint moment corresponding to the preset frequency, in seconds; t0 is the first endpoint moment corresponding to the preset frequency, in seconds; ΔT is the temperature difference, in degrees Celsius; K is the target integral coefficient.
[0009] In one embodiment, the current insulation power of the liquid heater is adjusted based on the insulation power adjustment value until the current insulation state corresponding to the current insulation power meets the preset constant temperature condition, including: adjusting the current insulation power of the liquid heater based on the insulation power adjustment value, and marking the insulation power before adjustment as the historical insulation power; judging whether the current insulation state meets the preset constant temperature condition based on the current insulation power and at least one of the most recent historical insulation powers; if the preset constant temperature condition is met, determining that the current insulation power of the liquid heater is balanced with the power consumption; if the preset constant temperature condition is not met, executing the step again: calculating the temperature difference between the preset insulation temperature and the actual temperature at a preset frequency.
[0010] In one embodiment, based on the current insulation power and at least one of the most recent historical insulation powers, it is determined whether the current insulation state meets the preset constant temperature condition, including: calculating the maximum power change value corresponding to at least one recent time period based on the current insulation power and at least one of the most recent historical insulation powers; and determining whether the current insulation state meets the preset constant temperature condition based on whether all the maximum power change values are within a first preset threshold range.
[0011] In one embodiment, based on the current insulation power and at least one of the most recent historical insulation powers, it is determined whether the current insulation state meets the preset constant temperature condition, including: determining the maximum temperature difference corresponding to at least one recent time period based on the update time corresponding to the current insulation power and at least one of the most recent historical insulation powers; and determining whether the current insulation state meets the preset constant temperature condition based on whether all the maximum temperature differences are within a second preset threshold range.
[0012] In one embodiment, before continuously updating the current insulation power according to the temperature difference and the integration method, the method further includes: when the temperature difference enters the first preset temperature difference range, adjusting the current insulation power of the liquid heater to the preset insulation power.
[0013] In one embodiment, after continuously updating the current insulation power according to the temperature difference and integration method until the current insulation state corresponding to the current insulation power meets the preset constant temperature condition, the method also includes: marking the current insulation power as a new preset insulation power corresponding to the preset insulation temperature.
[0014] The second aspect of the embodiment of the present application provides a liquid heater, comprising a thyristor and a processor, wherein the thyristor is configured to adjust the heating power of the liquid heater; and the processor is configured to execute the heat preservation adaptive method of the first aspect of the embodiment of the present application and any of its embodiments.
[0015] The beneficial effects of this application compared with the prior art are:
[0016] The present application can solve the problems of excessive temperature surge, intermittent heating, high noise and high power in the prior art when the liquid heater is automatically keeping warm. The present application calculates the temperature difference between the preset keeping warm temperature and the measured temperature during the keeping warm stage, and continuously updates the current keeping warm power by the integral method, thereby obtaining a keeping warm power that can quickly achieve the automatic balance between dissipation and heating of the liquid heater during the keeping warm process. The present application can effectively reduce the heating power required for the liquid heater to maintain the preset keeping warm temperature, and at the same time can reduce the noise and thyristor temperature of the liquid heater during the keeping warm process, thereby avoiding excessive power consumption and serious loss of the liquid heater that affects its service life, effectively improving the keeping warm accuracy and efficiency of the liquid heater, reducing production costs and use costs, and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.
[0018] Figure 1 A schematic diagram of the structure of a liquid heater provided in one embodiment of the present application;
[0019] Figure 2 A schematic flow chart of a method for self-adapting the temperature of a liquid heater provided in one embodiment of the present application;
[0020] Figure 3 A schematic flow chart of a method for self-adapting the temperature of a liquid heater provided in one embodiment of the present application;
[0021] Figure 4 A schematic diagram of a fluctuation curve of the heating power and the temperature inside the kettle corresponding to the heat preservation adaptive method provided in one embodiment of the present application;
[0022] Figure 5 A schematic diagram of a fluctuation curve of the thyristor temperature corresponding to the heat preservation adaptive method provided in one embodiment of the present application.
[0023] Reference numerals: 1 - liquid heater; 11 - thyristor; 12 - processor; 13 - memory. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.
[0025] Similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.
[0026] The technical solution of the present application will be clearly and completely described below in conjunction with the accompanying drawings.
[0027] See also Figure 1 , Figure 1 This is a schematic diagram of the structure of a liquid heater 1 provided in one embodiment of the present application. Figure 2 As shown, the liquid heater 1 includes at least one processor 12 , a thyristor 11 and a memory 13 . Figure 2 A processor 12 is taken as an example. The processor 12 and the memory 13 are connected via a bus, the processor 12 is electrically connected to the thyristor 11, and the thyristor 11 is configured to adjust the heating power of the liquid heater 1. The memory 13 stores instructions that can be executed by at least one processor 12, and the instructions are executed by at least one processor 12 so that at least one processor 12 controls the thyristor 11 to work, so as to perform the heat preservation adaptive method of the liquid heater 1 in the following embodiment.
[0028] See also Figure 2 , Figure 2 A schematic flow chart of a method for self-adapting heat preservation of a liquid heater provided in an embodiment of the present application. The method is executed by a processor (or controller) in the liquid heater, and the method includes the following steps.
[0029] S110: In the heat preservation stage, the temperature difference between the preset heat preservation temperature and the actual temperature is calculated at a preset frequency.
[0030] The insulation stage refers to the working stage that the liquid heater automatically or passively enters after the heating stage is completed. In the embodiment of the present application, the heating is deemed to be completed after the temperature of the liquid in the liquid heater reaches the target temperature and is maintained for a certain period of time, and then the liquid heater enters the insulation stage by self-cooling and reheating or low-power heating, so that the temperature of the liquid in the liquid heater is constant within a certain temperature range, that is, the liquid heater maintains an insulation state. The preset insulation temperature refers to the target temperature that the liquid heater needs to maintain during the insulation stage. The preset insulation temperature can be pre-set by the user, or it can be automatically adjusted by the liquid heater according to different heating functions (such as tea making function, porridge making function, boiling water function, etc.).
[0031] In this step, after the liquid heater ends the heating stage and enters the insulation stage, the temperature sensor detects the ambient temperature inside the liquid heater in real time as the measured temperature, and the processor calculates the temperature difference based on the known preset insulation temperature and the measured temperature obtained by real-time detection until the temperature difference enters the first preset temperature difference range.
[0032] S120: When the temperature difference is within a first preset temperature difference range, the current insulation power is continuously updated according to the temperature difference and the integration method until the insulation state corresponding to the current insulation power meets the preset constant temperature condition.
[0033] The preset constant temperature condition refers to the condition corresponding to the liquid heater maintaining the liquid temperature at a specified temperature in the insulation state. In this step, when the temperature difference between the measured temperature and the preset insulation temperature enters the first preset temperature difference range, the processor uses the integral method to adjust the current insulation power according to the temperature difference calculated in real time until the insulation state corresponding to the current insulation power meets the preset constant temperature condition, that is, the liquid heater heats based on the latest adjusted current insulation power, and the liquid temperature in the liquid heater can be maintained at the preset insulation temperature.
[0034] See also Figure 3 , Figure 3 A schematic flow chart of a method for self-adapting heat preservation of a liquid heater provided in an embodiment of the present application. The method is executed by a processor (or controller) in the liquid heater, and the method includes the following steps.
[0035] S210: In the heat preservation stage, the temperature difference between the preset heat preservation temperature and the actual temperature is calculated at a preset frequency.
[0036] The insulation stage refers to the working stage that the liquid heater automatically or passively enters after the heating stage is completed. In the embodiment of the present application, the heating is deemed to be completed after the temperature of the liquid in the liquid heater reaches the target temperature and is maintained for a certain period of time, and then the liquid heater enters the insulation stage by self-cooling and reheating or low-power heating. The insulation work causes the temperature of the liquid in the liquid heater to gradually reduce the temperature fluctuation and finally remain constant at the preset insulation temperature, that is, the liquid heater maintains the insulation state. The preset insulation temperature refers to the target temperature that the liquid heater needs to maintain during the insulation stage. The preset insulation temperature can be pre-set by the user, or it can be automatically adjusted by the liquid heater according to different heating functions (such as tea making function, porridge making function, boiling water function, etc.).
[0037] In this step, after the liquid heater ends the heating stage and enters the insulation stage, the temperature sensor detects the ambient temperature inside the liquid heater in real time as the measured temperature, and the processor calculates the temperature difference based on the known preset insulation temperature and the measured temperature obtained by real-time detection at a preset frequency until the temperature difference enters the first preset temperature difference range.
[0038] In the embodiment of the present application, the calculation accuracy of the temperature difference is 0.1° C., and the preset frequency is once per second.
[0039] S220: When the temperature difference enters the first preset temperature difference range for the first time, the current heat preservation power of the liquid heater is adjusted to the preset heat preservation power.
[0040] The preset heat preservation power refers to the heating power initially used to achieve heat preservation when the temperature difference between the liquid temperature in the liquid heater and the preset heat preservation temperature first enters the first preset temperature difference range. In this step, when the temperature difference first enters the first preset temperature difference range, the processor controls the heating power of the liquid heater through the thyristor 11, and adjusts the current heat preservation power of the liquid heater to the preset heat preservation power.
[0041] In one embodiment, the first preset temperature difference range is: within ±3°C, that is, the temperature interval corresponding to the first preset temperature difference range is (-3°C, +3°C), and the preset insulation temperature is 85°C. When the absolute value of the temperature difference is less than 3°C, the temperature difference enters the first preset temperature difference range.
[0042] In the embodiments of the present application, the heating power is not expressed in specific unit values, and the following content uniformly expresses the magnitude of the heating power as 0-100%. In one embodiment, the preset heat preservation power is 10% of the heating power.
[0043] S230: Continuously update the current heat preservation power according to the temperature difference and the integration method until the heat preservation state corresponding to the current heat preservation power meets the preset constant temperature condition.
[0044] This step is similar to the above step S120. For details, please refer to the above step S120. This step includes the following sub-steps S231 to S234.
[0045] S231: searching for at least one integral coefficient based on a current heating model, where the current heating model is used to characterize a configuration condition of the liquid heater in a current heating state.
[0046] The liquid heaters in existing products have different fixed configuration parameters such as capacity, heating area, heating function or heating mode. Therefore, in this step, the processor determines the heating model of the liquid heater according to the fixed configuration parameters of the current liquid heater, and searches for at least one integral coefficient based on the heating model.
[0047] S232: Among all the integral coefficients, mark the integral coefficient with the smallest value as the target integral coefficient.
[0048] When the temperature difference is within the first preset temperature difference range, the processor of the liquid heater needs to gradually adjust the current insulation power using the integration method to obtain an insulation power that enables the liquid heater to accurately and quickly achieve real-time balance between heat dissipation and heating heat in the insulation state. The integral coefficient is highly correlated with the heating power, and taking a smaller value as possible is beneficial to offset the hysteresis of the heating control system in the liquid heater. Too large an integral coefficient value can easily lead to system instability. Therefore, in this step, the processor marks the integral coefficient with the smallest value among all the integral coefficients found as the target integral coefficient, which is used as the target integral coefficient in the corresponding calculation formula of the integration method to calculate the insulation power adjustment value.
[0049] In one embodiment, the target integration coefficient K=0.01.
[0050] S233: Integrate the temperature difference by an integration method according to the known target integral coefficient to obtain a heat preservation power adjustment value.
[0051] In this step, the processor calculates the insulation power adjustment value based on the most recently calculated temperature difference, the target integral coefficient and the integral period corresponding to the preset frequency, each integral period corresponding to two endpoint moments, namely the first endpoint moment and the second endpoint moment.
[0052] In this step, the processor calculates the heat preservation power adjustment value according to the following integral formula (1).
[0053]
[0054] Wherein, ΔP is the insulation power adjustment value, in watts; t1 is the second endpoint moment corresponding to the preset frequency, in seconds; t0 is the first endpoint moment corresponding to the preset frequency, in seconds; ΔT is the temperature difference, in degrees Celsius; K is the target integral coefficient. In one embodiment, the interval between the first endpoint moment and the second endpoint moment is 1 second.
[0055] S234: adjusting the current insulation power of the liquid heater based on the insulation power adjustment value until the current insulation state corresponding to the current insulation power meets the preset constant temperature condition.
[0056] In this step, the processor first adjusts the current insulation power of the liquid heater based on the insulation power adjustment value, and marks the insulation power before adjustment as the historical insulation power. Secondly, the processor determines whether the current insulation state meets the preset constant temperature condition based on the current insulation power and at least one of the most recent historical insulation powers. If the current insulation state does not meet the preset constant temperature condition, the processor executes step S210 again to recalculate the temperature difference between the preset insulation temperature and the latest measured temperature, so as to adjust the current insulation power again based on the new temperature difference; if the current insulation state meets the preset constant temperature condition, the processor determines that the current insulation power of the liquid heater is balanced with the power consumption, and continues to execute step S240.
[0057] The processor adjusts the current insulation power of the liquid heater based on the insulation power adjustment value, and the calculation formula is as follows (2).
[0058] P=P0+ΔP; (2)
[0059] Among them, ΔP is the insulation power adjustment value, in watts; P0 is the insulation power before adjustment, in watts; P is the current insulation power after adjustment, in watts.
[0060] When the measured temperature is lower than the preset insulation temperature, the temperature difference ΔT is a positive number. As time goes by, the heating power will slowly increase, and the larger the ΔT, the faster the integration rate. On the contrary, when ΔT is a negative number, the heating power will slowly decrease. Through iterative calculation of the integration method, the actual measured temperature will eventually be maintained at the same level as the preset insulation temperature, and the current insulation power will remain unchanged.
[0061] The processor determines whether the current insulation state meets the preset constant temperature condition based on the current insulation power and at least one recent historical insulation power. The specific judgment process is as shown in the following embodiment.
[0062] In one embodiment, the processor determines the maximum temperature difference corresponding to at least one recent time period based on the update time corresponding to the current insulation power and at least one of the most recent historical insulation powers; then, the processor determines whether the current insulation state meets the preset constant temperature condition based on whether all the maximum temperature differences are within the second preset threshold range. For example, the processor selects the three historical insulation powers with the most recent update time to determine the corresponding measured temperatures, namely, the historical measured temperature T1 1s away from the current time, the historical measured temperature T2 2s away from the current time, and the historical measured temperature T3 3s away from the current time. Then, the processor calculates the maximum temperature difference between the current measured temperature T0 and the three historical measured temperatures respectively. When the above three maximum temperature differences are all within the second preset threshold range, the current insulation state meets the preset constant temperature condition.
[0063] In one embodiment, the processor calculates the maximum power change value corresponding to at least one recent time period based on the current insulation power and at least one recent historical insulation power; then, the processor determines whether the current insulation state meets the preset constant temperature condition based on whether all the calculated maximum power change values are within the first preset threshold range. For example, the processor selects the historical insulation power corresponding to the three most recent time periods to determine whether the current insulation state meets the preset constant temperature condition. The historical insulation powers corresponding to the thyristor 11 in the most recent first time period, second time period, and third time period are P1, P2, and P3, respectively, and their respective corresponding maximum power change values are ΔP1, ΔP2, and ΔP3, respectively. When the above three maximum power change values are all within the first preset threshold range, the current insulation state meets the preset constant temperature condition.
[0064] In other embodiments of the present application, the processor determines whether the current insulation state meets the preset constant temperature condition. It can also be based on whether the change value of the current insulation power in the most recent first time period is always less than the preset change threshold, or based on whether the current insulation power is constant during the most recent consecutive change cycles; or based on whether the temperature difference between the actual measured temperature and the preset insulation temperature within the preset interval time is always maintained at 0 after the insulation power is adjusted to the current insulation power (wherein the preset interval time is greater than or equal to the interval time corresponding to the preset frequency).
[0065] S240: Mark the current heat preservation power as a new preset heat preservation power corresponding to the preset heat preservation temperature.
[0066] In this step, when the current insulation state corresponding to the current insulation power meets the preset constant temperature condition, the processor marks the current insulation power as a new preset insulation power corresponding to the preset insulation temperature, so that when the liquid heater enters the insulation stage next time and the preset insulation temperature is equal, the processor can quickly call the pre-debugged preset insulation power, so that the liquid heater can achieve a dynamic balance between the heat dissipation and the heating heat in the insulation state, and maintain the liquid temperature at the preset insulation temperature, thereby improving the stability of the liquid heater in the insulation stage.
[0067] See also Figure 4 , Figure 4 This is a schematic diagram of the fluctuation curve of the heating power and the temperature inside the kettle corresponding to the heat preservation adaptive method provided in one embodiment of the present application. Figure 4 As shown, when the liquid heater 1 is heated in the heat preservation stage by the heat preservation adaptive method provided by the present application, the temperature fluctuation is very small (temperature fluctuation is less than 1°C), and only a relatively low heating power is required to maintain a relatively high-precision preset heat preservation temperature (heat preservation accuracy is ±1°C). The heat preservation adaptive method provided by the present application achieves high-precision heat preservation by achieving a dynamic balance between the dissipated power and the heating power of the liquid heater 1, and can adapt to different application scenarios.
[0068] On this basis, the heat preservation adaptive method of the liquid heater 1 provided in the present application can also realize the liquid in the pot being maintained at its corresponding boiling point (for example, the boiling point of boiling water is 100 degrees) and in a slightly boiling state without violent boiling. The slightly boiling state can keep the liquid at the boiling point temperature and in a very small boiling state, which prevents the production of thousands of boiling water and avoids the rapid deterioration of water quality due to violent repeated boiling. The present application can meet the needs of some users who want to have access to boiling water at all times. The present application can achieve the maintenance of a slightly boiling state at 100°C when boiling water. The maximum insulation temperature of the liquid heater 1 currently on the market can be maintained at 85°C.
[0069] In addition, based on the above-mentioned heat preservation adaptive method, the present application makes the heating power in the heat preservation stage reach the minimum in a way of maintaining the balance between the dissipated power and the heating power, thereby reducing the noise generated by heating to the greatest extent. The noise intensity generated by the liquid heater 1 product on the market during the heat preservation stage is about 45dB. Through the heat preservation adaptive method provided by the present application, the noise of the liquid heater 1 during the heat preservation stage can be reduced by about 10dB, so that the present application can meet more daily use needs of users, especially functional applications in bedroom environments.
[0070] See also Figure 5 , Figure 5 The following is a schematic diagram of the fluctuation curve of the temperature of the thyristor 11 corresponding to the heat preservation adaptive method provided in one embodiment of the present application. Figure 5As shown, the heat preservation adaptive method of the liquid heater 1 provided in the present application minimizes the heating power required for heat preservation by maintaining a balance between the dissipated power and the heating power during the heat preservation stage, thereby maintaining the temperature control hardware (thyristor 11) at a relatively low temperature (such as Figure 5 As shown, the temperature is below 100° C.). Therefore, the liquid heater 1 can use low-power devices and does not need to use a heat sink. The present application reduces the manufacturing cost and the use cost of the liquid heater 1.
[0071] The present application calculates the temperature difference between the preset insulation temperature and the measured temperature during the insulation stage, and continuously updates the current insulation power by the integral method, thereby obtaining an insulation power that can quickly achieve the liquid heater 1 to maintain an automatic balance between dissipation and heating during the insulation process. The present application can effectively reduce the heating power required for the liquid heater 1 to maintain the preset insulation temperature, and at the same time can reduce the noise of the liquid heater 1 and the temperature of the thyristor 11 during the insulation process, thereby avoiding excessive power consumption and serious loss of the liquid heater 1 that affects its service life, effectively improving the insulation accuracy and efficiency of the liquid heater 1, reducing production costs and use costs, and improving the user experience.
[0072] The embodiment of the present application provides a computer-readable storage medium, wherein the storage medium stores a computer program. The computer program can be executed by the processor 12 to implement the heat preservation self-adaptive method of the liquid heater 1.
[0073] If the function is implemented in the form of a software function module and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can essentially or in other words, the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program code.
[0074] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A method for self-adapting heat preservation of a liquid heater, characterized in that: The method comprises: During the insulation stage, the temperature difference between the preset insulation temperature and the measured temperature is calculated at a preset frequency; When the temperature difference is within a first preset temperature difference range, the current insulation power is continuously updated according to the temperature difference and the integration method until the insulation state corresponding to the current insulation power meets the preset constant temperature condition.
2. The heat preservation adaptive method of a liquid heater according to claim 1, characterized in that: When the temperature difference is within the first preset temperature difference range, the current heat preservation power is continuously updated by the integration method until the heat preservation state corresponding to the current heat preservation power meets the preset constant temperature condition, including: According to a known target integral coefficient, the temperature difference is integrated by the integral method to obtain a heat preservation power adjustment value; The current heat preservation power of the liquid heater is adjusted based on the heat preservation power adjustment value until the current heat preservation state corresponding to the current heat preservation power meets the preset constant temperature condition.
3. The self-adaptive heat preservation method of a liquid heater according to claim 2, characterized in that: Before integrating the temperature difference by the integration method according to the known target integral coefficient to obtain the heat preservation power adjustment value, the method further includes: searching at least one integral coefficient based on a current heating model, wherein the current heating model is used to characterize a configuration condition of the liquid heater in a current heating state; Among all the integral coefficients, the integral coefficient with the smallest value is marked as the target integral coefficient.
4. The self-adaptive heat preservation method of a liquid heater according to claim 2, characterized in that: The step of integrating the temperature difference by the integration method according to the known target integral coefficient to obtain the heat preservation power adjustment value includes: According to the formula Calculating the thermal insulation power adjustment value; Among them, ΔP is the insulation power adjustment value, in watts; t1 is the second endpoint moment corresponding to the preset frequency, in seconds; t0 is the first endpoint moment corresponding to the preset frequency, in seconds; ΔT is the temperature difference, in degrees Celsius; K is the target integral coefficient.
5. The self-adaptive heat preservation method of a liquid heater according to claim 2, characterized in that: The step of adjusting the current heat preservation power of the liquid heater based on the heat preservation power adjustment value until the current heat preservation state corresponding to the current heat preservation power meets the preset constant temperature condition includes: Based on the insulation power adjustment value, adjusting the current insulation power of the liquid heater, and marking the insulation power before adjustment as the historical insulation power; Based on the current heat preservation power and at least one of the most recent historical heat preservation powers, determining whether the current heat preservation state meets the preset constant temperature condition; If the preset constant temperature condition is met, determining that the current heat preservation power and the power consumption of the liquid heater are balanced; If the preset constant temperature condition is not met, the step of calculating the temperature difference between the preset insulation temperature and the actual temperature at the preset frequency is performed again.
6. The self-adaptive heat preservation method of a liquid heater according to claim 5, characterized in that: The determining, based on the current heat preservation power and at least one of the most recent historical heat preservation powers, whether the current heat preservation state satisfies the preset constant temperature condition comprises: Based on the current heat preservation power and at least one of the most recent historical heat preservation powers, calculating a maximum power change value corresponding to at least one most recent period; Whether the current heat preservation state satisfies the preset constant temperature condition is determined according to whether all the maximum power change values are within a first preset threshold range.
7. The self-adaptive heat preservation method of a liquid heater according to claim 5, characterized in that: The determining, based on the current heat preservation power and at least one of the most recent historical heat preservation powers, whether the current heat preservation state satisfies the preset constant temperature condition comprises: Determine a maximum temperature difference corresponding to at least one recent time period based on the update time corresponding to the current heat preservation power and at least one of the most recent historical heat preservation powers; Whether the current heat preservation state satisfies the preset constant temperature condition is determined according to whether all the maximum temperature difference values are within the second preset threshold range.
8. The self-adaptive heat preservation method of a liquid heater according to claim 1, characterized in that: Before continuously updating the current heat preservation power according to the temperature difference and the integration method, the method further includes: When the temperature difference enters the first preset temperature difference range for the first time, the current heat preservation power of the liquid heater is adjusted to the preset heat preservation power.
9. The self-adaptive heat preservation method of a liquid heater according to claim 1, characterized in that: After continuously updating the current heat preservation power according to the temperature difference and the integration method until the current heat preservation state corresponding to the current heat preservation power meets the preset constant temperature condition, the method further includes: The current heat preservation power is marked as a new preset heat preservation power corresponding to the preset heat preservation temperature.
10. A liquid heater, characterized in that: The liquid heater comprises: a thyristor configured to adjust the heating power of the liquid heater; A processor is electrically connected to the thyristor, and the processor is configured to execute the thermal insulation adaptive method of the liquid heater according to any one of claims 1 to 9.