Heating control method and device of water heater, water heater and storage medium

Abstract

The invention relates to the technical field of water heaters, and provides a heating control method and device of a water heater, the water heater and a storage medium. The water heater comprises a preheating heater arranged corresponding to an inner container of the water heater and a rear heater arranged on the downstream portion of the inner container; the heating control method of the water heater comprises the steps that the preset water outlet temperature of a user and the water inlet temperature of an inner container are obtained, and the heating power needed by the water heater is determined based on the preset water outlet temperature, the water inlet temperature and the water flow value of the water heater; the required heating power is determined to be larger than the full power of the rear heater, a preheating heater is started for preheating, water flowing to the rear heater is heated to the preheating temperature, and the preheating temperature is determined by the water flow value, the heating power and the full power of the rear heater. According to the method, the adjusting capacity of the water heater for different use scenes is improved, the matched heating modes are provided according to the different use scenes, heat waste is reduced, and energy waste is reduced.

Description

Technical Field

[0001] This invention relates to the field of water heater technology, and in particular to a heating control method, device, water heater, and storage medium for water heaters. Background Technology

[0002] With the improvement of living standards, thermal storage appliances, such as storage water heaters, have become one of the essential household appliances. For thermal storage water heaters, the most important parameter is the heating temperature.

[0003] However, existing storage-type electric water heaters heat water according to a preset tank temperature as soon as they are plugged in. When users are using them in the summer, the inlet water temperature is high, and heating it to the highest temperature at full power will result in a waste of heat and energy. Summary of the Invention

[0004] This invention aims to at least solve one of the technical problems existing in related technologies. To this end, this invention proposes a heating control method for water heaters, which improves the water heater's ability to adjust to different usage scenarios, provides matching heating modes according to different usage scenarios, and reduces energy waste.

[0005] Therefore, one aspect of the present invention is to provide a method for controlling a water heater.

[0006] Another aspect of the present invention is to provide a heating control device for a water heater.

[0007] Another aspect of the present invention is to provide a computer-readable storage medium.

[0008] Another aspect of the present invention is to provide a water heater.

[0009] This invention proposes a heating control method for an electric water heater, wherein the water heater includes a preheating heater disposed corresponding to the inner tank of the water heater, and a post-heating heater disposed downstream of the inner tank. The heating control method for the water heater includes:

[0010] The system obtains the user's preset outlet water temperature and the inlet water temperature of the inner tank, and determines the heating power required by the water heater based on the preset outlet water temperature, the inlet water temperature and the water flow rate of the water heater.

[0011] If the required heating power is determined to be greater than the full power of the post-heater, the preheater is turned on to preheat the water flowing to the post-heater to the preheating temperature, wherein the preheating temperature is determined by the water flow rate, the heating power, and the full power of the post-heater.

[0012] According to one embodiment of the present invention, the water storage temperature of the inner tank is determined based on the calorific value of the rear heater when it is operating at full power, the current calorific value of the inner tank, and the preset water consumption.

[0013] According to one embodiment of the present invention, the water storage temperature of the inner tank is determined based on the calorific value of the rear heater when it is operating at full power, the current calorific value of the inner tank, and the user's habitual water consumption, wherein the habitual water consumption is determined by the user's historical water consumption data.

[0014] According to one embodiment of the present invention, when the water in the inner tank is heated to the water storage temperature, the heating of the preheating heater is stopped. When the user uses water, the post-heating heater is turned on directly to heat the water to the preset water outlet temperature.

[0015] According to one embodiment of the present invention, if the required heating power is determined to be less than or equal to the full power of the subsequent heater, the preheating heater is not turned on, and the subsequent heater is turned on based on the required heating power.

[0016] According to one embodiment of the present invention, when a user uses water, the heating power of the post-heater is adjusted in real time according to the actual water flow rate so that the outlet water temperature reaches the user's preset outlet water temperature.

[0017] The present invention also proposes a heating control device for a water heater, the heating control device for a water heater comprising: a memory, a processor, and a heating control program for a water heater stored in the memory and running on the processor, wherein when the heating control program for a water heater is executed by the processor, the steps of the heating control method for an electric water heater as described above are implemented.

[0018] The present invention also provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the steps of the water heater control method as described in any of the above technical solutions.

[0019] The computer-readable storage medium proposed in this invention, on which a computer program is stored, can implement the steps of the water heater control method of any of the above-mentioned technical solutions when executed by a processor. Therefore, it has all the beneficial technical effects of the above-mentioned water heater control method, which will not be repeated here.

[0020] The present invention also provides a water heater, comprising:

[0021] Inner liner;

[0022] A preheating heater, installed in the inner tank, is used to preheat the water flowing through the inner tank;

[0023] A rear heater is installed downstream of the inner tank to heat the water flowing out of the inner tank so that the water temperature of the water heater reaches the preset outlet temperature.

[0024] The controller, connected to the preheating heater and the post-heating heater, is used to execute the heating control method of the water heater described above.

[0025] According to one embodiment of the present invention, the inner liner is provided with a heat exchange circuit, and the preheating heater is used to heat the heat exchange medium of the heat exchange circuit.

[0026] The above-described one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:

[0027] The water heater heating control method of the present invention determines the required heating power of the water heater based on the user's preset outlet water temperature and the inlet water temperature of the inner tank, using the preset outlet water temperature, the inlet water temperature, and the water flow rate of the water heater. When the required heating power is greater than the full power of the post-heater, the preheater is activated to preheat the water flowing to the post-heater to the preheating temperature. The preheating temperature can be determined by the water flow rate, heating power, and the full power of the post-heater. Thus, the coordinated operation of the post-heater and the preheater of the inner tank allows the outlet water temperature to quickly reach the user's preset outlet water temperature, thereby shortening the heating time of the electric water heater. Furthermore, it can provide matching heating modes according to different usage scenarios (such as different seasons, different preset outlet water temperatures, different water flow rates, etc.). When the inlet water temperature is low, preheating by activating the preheater in advance can effectively reduce the heating load on the post-heater; when the inlet water temperature is high, heating can be achieved solely by the post-heater, thereby reducing energy consumption and heat waste.

[0028] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a flowchart of the water heater heating control method provided in the embodiments of the present invention. Figure 1 ;

[0031] Figure 2 This is a flowchart of the water heater heating control method provided in the embodiments of the present invention. Figure 2 ;

[0032] Figure 3 This is a flowchart of the water heater heating control method provided in the embodiments of the present invention. Figure 3 ;

[0033] Figure 4 This is a flowchart of the water heater heating control method provided in the embodiments of the present invention. Figure 4 ;

[0034] Figure 5 This is a flowchart of the water heater heating control method provided in the embodiments of the present invention. Figure 5 ;

[0035] Figure 6 This is a schematic diagram showing the relationship of an embodiment of a water heater provided in this invention;

[0036] Figure 7 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present invention.

[0037] Figure label:

[0038] 100. Preheater; 200. Post-heater; 300. Controller; 400. Inlet water temperature sensor; 500. Outlet water temperature sensor; 600. Inner tank temperature sensor;

[0039] 810, Processor; 820, Communication interface; 830, Memory; 840, Communication bus. Detailed Implementation

[0040] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0041] In the description of the embodiments of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0042] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0043] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0044] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0045] With the improvement of living standards, thermal storage appliances, such as storage water heaters, have become one of the essential household appliances. For thermal storage water heaters, the most important parameter is the heating temperature.

[0046] However, existing storage-type electric water heaters heat water according to a preset tank temperature as soon as they are plugged in. When users are using them in the summer, the inlet water temperature is high, and heating it to the highest temperature at full power will result in a waste of heat and energy.

[0047] This invention proposes a heating control method, device, water heater, and storage medium for a water heater.

[0048] Reference Figure 1In one embodiment of the heating control method for an electric water heater of the present invention, the water heater includes a preheating heater 100 disposed corresponding to the inner tank of the water heater, and a post-heating heater 200 disposed downstream of the inner tank. The heating control method for the water heater includes:

[0049] S1: Obtain the user's preset outlet water temperature and the inlet water temperature of the inner tank, and determine the heating power required by the water heater based on the preset outlet water temperature, the inlet water temperature and the water flow rate of the water heater;

[0050] S2: Determine that the required heating power is greater than the full power of the post-heater 200, turn on the preheater 100 to preheat, and heat the water flowing to the post-heater 200 to the preheating temperature, wherein the preheating temperature is determined by the water flow rate, the heating power and the full power of the post-heater 200.

[0051] In this application, an electric water heater is used as an example for illustration. Other types of water heaters (such as gas water heaters) can be illustrated with reference to this embodiment, and no special limitations are made here.

[0052] First, check the water inlet temperature of the inner tank. Due to the influence of external factors such as different seasons, different weather, different regions, or different water sources, the water inlet temperature will not be a constant.

[0053] The preset water temperature can be obtained based on user settings or by measuring the water temperature during daily showering.

[0054] The water flow rate can be calculated based on the water consumption of one person during daily bathing, thus avoiding the situation where the preset value cannot meet the needs of all users.

[0055] The required heating power of the water heater's heater assembly is obtained based on the detected inlet water temperature, preset outlet water temperature, and water flow rate. Then, the required heating power is compared with the heating power of the post-heater 200 operating at full power. If the required heating power is greater than the heating power of the post-heater 200 operating at full power, the preheater 100 is activated. The preheater 100 heats the water flowing to the post-heater 200 to the preheating temperature, allowing the post-heater 200 to raise the outlet water temperature to the user's preset outlet water temperature within its full power heating range. Thus, when the user needs to shower, the post-heater 200 can heat the preheated water to the preset outlet water temperature, meeting the user's water usage needs.

[0056] The water heater heating control method of the present invention determines the required heating power of the water heater based on the user's preset outlet water temperature and the inlet water temperature of the inner tank, taking into account the preset outlet water temperature, the inlet water temperature, and the water flow rate of the water heater. When the required heating power is greater than the full power of the post-heater 200, the preheater 100 is activated to preheat the water flowing to the post-heater 200 to the preheating temperature. The preheating temperature can be determined by the water flow rate, heating power, and the full power of the post-heater 200. Thus, the coordinated operation of the post-heater 200 and the preheater 100 of the inner tank allows the outlet water temperature to quickly reach the user's preset outlet water temperature, thereby shortening the heating time of the electric water heater. Furthermore, it can provide matching heating modes according to different usage scenarios (such as different seasons, different preset outlet water temperatures, different water flow rates, etc.). When the inlet water temperature is low, preheating by turning on the preheater 100 in advance can effectively reduce the heating load on the post-heater 200. When the inlet water temperature is high, heating can be carried out by the post-heater 200 alone, thereby reducing energy consumption and heat waste.

[0057] Furthermore, based on the preset outlet water temperature, the inlet water temperature, and the water flow rate of the water heater, the required heating power P of the water heater is determined. Therefore, the calculation method for the required heating power P is as follows:

[0058]

[0059] In the formula: P is the required heating power; ΔT = preset outlet water temperature - inlet water temperature of the inner tank; Q is the water flow rate of the water heater; Where K1 is the conversion factor and c is the specific heat capacity.

[0060] Reference Figure 2 S3: Determine the water storage temperature of the inner tank based on the calorific value of the rear heater 200 when it is operating at full power, the current calorific value of the inner tank, and the preset water consumption.

[0061] It should be noted that in this embodiment, the inner tank is a heat exchange type inner tank, that is, a heat exchange circuit is provided in the inner tank. The heat exchange circuit exchanges heat with the water flowing through the inner tank through a heat exchange medium, thereby heating the water. The water storage temperature of the inner tank is the temperature required for the heat exchange circuit of the inner tank to heat the water flowing to the post heater 200 to the preheating temperature through heat exchange.

[0062] Specifically, the calorific value of the post-heater 200 when operating at full power reflects the heat that the post-heater 200 can generate at maximum power. This is used to determine the temperature range that can be raised in the outlet water within a specific time period.

[0063] The current calorific value of the inner tank represents the amount of heat corresponding to the current temperature of the heat exchange circuit within the inner tank. By considering the current calorific value of the inner tank, it is possible to avoid repeatedly heating water that is already sufficiently hot, thereby reducing energy waste.

[0064] The preset water consumption reflects the amount of water the user expects to use. Based on the preset water consumption, the current calorific value of the inner tank, and the calorific value of the post-heater 200 when operating at full power, the water storage temperature of the inner tank can be determined. Then, based on the heating power of the preheater 100, the preheating time can be determined. In this way, the heating process can be controlled more accurately, ensuring that the water has reached the appropriate temperature when the user needs to use it.

[0065] Reference Figure 3 S3: Determine the water storage temperature of the inner tank based on the calorific value of the rear heater 200 when it is operating at full power, the current calorific value of the inner tank, and the user's habitual water consumption, wherein the habitual water consumption is determined by the user's historical water consumption data.

[0066] Understandably, a user's habitual water consumption can be derived by collecting and analyzing historical water usage data, reflecting their water usage habits at different times and in different scenarios. By considering this habitual consumption, water heaters can more accurately predict user demand and adjust the storage water temperature in advance, reducing waiting time for hot water. By comprehensively considering the calorific value of the 200W post-heater at full power, the current calorific value of the inner tank, and the user's habitual water consumption to determine the inner tank's storage temperature, water heaters can better adapt to the personalized needs of different users, improving the user experience.

[0067] Reference Figure 4 S4: When the water in the inner tank is heated to the water storage temperature, the heating of the preheating heater 100 is stopped. When the user uses water, the post heater 200 is turned on directly to heat the water to the preset water outlet temperature.

[0068] It is understandable that stopping the preheater 100 when the water in the inner tank reaches the set water storage temperature is for energy conservation purposes. The main function of the preheater 100 is to preheat the water entering the inner tank during the water storage stage, thereby reducing the burden on the post-heater 200. Once the water reaches the required temperature, continuing to heat it would lead to unnecessary energy waste.

[0069] When a user needs water, simply turning on the post-heater 200 can quickly heat the water to the preset temperature. The post-heater 200 has higher heating power and efficiency, enabling it to respond rapidly to user needs and ensure that users can obtain hot water promptly.

[0070] Reference Figure 5S2: According to an embodiment of the present invention, if the required heating power is determined to be less than or equal to the full power of the subsequent heater 200, the preheating heater 100 is not turned on, and the subsequent heater 200 is turned on based on the required heating power.

[0071] It is understood that if the required heating power is less than or equal to the full power of the subsequent heater 200, and can be met by the subsequent heater 200 alone, then not turning on the preheater 100 can avoid unnecessary energy waste. The preheater 100 is mainly used to preheat the heat exchange circuit entering the inner liner, but when the subsequent heater 200 can complete the heating task alone, the preheater 100 can be turned off.

[0072] By precisely calculating the required heating power and controlling the on / off state of the post-heater 200 accordingly, the water heater can ensure that it provides hot water at the required temperature in the most efficient way. This on-demand heating method not only reduces energy waste but also improves the response speed of the water heater, allowing users to obtain hot water faster.

[0073] According to one embodiment of the present invention, when a user uses water, the heating power of the post-heater 200 is adjusted in real time according to the actual water flow rate so that the outlet water temperature reaches the user's preset outlet water temperature.

[0074] Understandably, traditional water heaters use a fixed heating power, which cannot adapt to changes in water flow. This invention, however, by adjusting the heating power of the post-heater 200 in real time, can more precisely control the outlet water temperature and avoid temperature fluctuations caused by changes in water flow.

[0075] When using a water heater, users typically expect the outlet water temperature to reach their preset comfortable temperature. This invention, by adjusting the heating power in real time, ensures that the outlet water temperature quickly and stably reaches the user's preset temperature, thereby improving the user experience.

[0076] Reference Figure 6 The present invention also provides a water heater, comprising: an inner tank, a preheating heater 100, a post-heating heater 200, and a controller 300. The preheating heater 100 is installed in the inner tank for preheating the water flowing through the inner tank; the post-heating heater 200 is installed downstream of the inner tank for heating the water flowing out of the inner tank so that the water temperature of the water heater reaches a preset outlet temperature; the controller 300 is connected to the preheating heater 100 and the post-heating heater 200 for executing the heating control method of the water heater described above.

[0077] It is understood that in the embodiments of this application, the inner tank is the main heat storage part of the water heater, used for the initial heating of the water flowing through it.

[0078] The preheater 100 is installed inside the inner tank, and its main function is to preheat the water flowing through the inner tank. The preheater 100 usually operates in the initial stage of water entering the inner tank, reducing the energy required for subsequent heating by increasing the water temperature, thereby improving the overall energy efficiency of the water heater.

[0079] The post-heater 200 is located downstream of the inner tank, where water flows out of the tank. The main function of the post-heater 200 is to further heat the water flowing from the inner tank, ensuring that the water temperature from the water heater reaches the user's preset temperature. The post-heater 200 typically has higher heating power to quickly raise the water temperature when needed.

[0080] The controller 300 is the core control unit of the water heater, connecting and controlling the operating status of the preheater 100 and the postheater 200. The controller 300 executes the aforementioned heating control strategy to ensure that the water heater can intelligently adjust the heating power and temperature according to the user's needs and actual conditions.

[0081] Thus, by combining components such as the inner tank, preheater 100, post-heater 200, and controller 300, this water heater achieves a highly efficient, energy-saving, and intelligent heating process, providing users with a comfortable and convenient hot water experience. At the same time, the design of this water heater fully considers energy efficiency and environmental factors, helping to reduce energy consumption and minimize environmental impact.

[0082] Furthermore, the water heater also includes at least three temperature sensors. One of these sensors is installed in the inner tank to detect the temperature of the heat exchange circuit within the inner tank; the other sensors are respectively installed at the inlet and outlet to detect the inlet water temperature and the outlet water temperature. Specifically, this embodiment uses an inlet water temperature sensor 400, an outlet water temperature sensor 500, and an inner tank temperature sensor 600 as an example. Thus, through the coordinated operation of these three temperature sensors, the water heater can comprehensively understand each stage of the heating process, thereby achieving precise control of the water temperature. The controller 300 can intelligently adjust the heating power and operating time of the preheater 100 and the post-heater 200 based on the actual data of the inner tank temperature, inlet water temperature, and outlet water temperature to ensure that the outlet water temperature can quickly and stably reach the user's preset temperature.

[0083] Furthermore, the water heater also includes at least one flow sensor located at the water outlet to detect the water flow rate. Understandably, based on the data from the flow sensor, the water heater can intelligently adjust its heating power and heating time. When the water flow rate increases, the water heater will rapidly increase its heating power to ensure that the outlet water temperature quickly reaches the preset value, meeting the user's demand for high-flow-rate water use. Conversely, when the water flow rate decreases, the water heater will correspondingly reduce its heating power to avoid energy waste and maintain a stable outlet water temperature.

[0084] Figure 7 An example is a schematic diagram of the physical structure of an electronic device, such as... Figure 7 As shown, the electronic device may include: a processor 810, a communication interface 820, a memory 830, and a communication bus 840, wherein the processor 810, the communication interface 820, and the memory 830 communicate with each other through the communication bus 840. The processor 810 can call logical instructions in the memory 830 to execute the following method: obtaining the user's preset outlet water temperature and the inlet water temperature of the inner tank, and determining the heating power required by the water heater based on the preset outlet water temperature, the inlet water temperature, and the water flow rate value of the water heater;

[0085] If the required heating power is greater than the full power of the post-heater 200, the preheater 100 is turned on to preheat the water flowing to the post-heater 200 to the preheating temperature, wherein the preheating temperature is determined by the water flow rate, the heating power and the full power of the post-heater 200.

[0086] Furthermore, the logical instructions in the aforementioned memory 830 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to related technologies, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0087] On the other hand, embodiments of the present invention disclose a computer program product, the computer program product including a computer program stored on a non-transitory computer-readable storage medium, the computer program including program instructions, when the program instructions are executed by the computer, the computer can execute the methods provided in the above-described method embodiments, for example including: obtaining the user's preset outlet water temperature and the inlet water temperature of the inner tank; determining the heating power required by the water heater based on the preset outlet water temperature, the inlet water temperature and the water flow rate of the water heater; determining that the required heating power is greater than the full power of the post-heater 200; turning on the preheater 100 for preheating; heating the water flowing to the post-heater 200 to the preheating temperature, wherein the preheating temperature is determined by the water flow rate, the heating power and the full power of the post-heater 200.

[0088] In another aspect, embodiments of the present invention also provide a non-transitory computer-readable storage medium storing a computer program thereon. When executed by a processor, the computer program is implemented to perform the transmission methods provided in the above embodiments, such as: acquiring a user's preset outlet water temperature and the inlet water temperature of the inner tank; determining the heating power required by the water heater based on the preset outlet water temperature, the inlet water temperature, and the water flow rate of the water heater; determining that the required heating power is greater than the full power of the post-heater 200; turning on the preheater 100 to preheat the water flowing to the post-heater 200 to the preheating temperature, wherein the preheating temperature is determined by the water flow rate, the heating power, and the full power of the post-heater 200.

[0089] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, i.e., they may be located in one location or distributed across multiple network units. Some or all of the modules may be selected based on actual needs to achieve the objectives of the present embodiment. Persons of ordinary skill in the art will be able to understand and implement the present invention without inventive effort.

[0090] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the parts that contribute to the related technology, can be embodied in the form of software products. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0091] Finally, it should be noted that the above embodiments are only for illustrating the present invention and not for limiting the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications, or equivalent substitutions of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention and should be covered within the scope of the claims of the present invention.

Claims

1. A heating control method for a water heater, the water heater comprising a preheating heater disposed corresponding to the inner tank of the water heater, and a post-heating heater disposed downstream of the inner tank, characterized in that, The heating control method for the water heater includes: The system obtains the user's preset outlet water temperature and the inlet water temperature of the inner tank, and determines the heating power required by the water heater based on the preset outlet water temperature, the inlet water temperature and the water flow rate of the water heater. If the required heating power is determined to be greater than the full power of the post-heater, the preheater is turned on to preheat the water flowing to the post-heater to the preheating temperature, wherein the preheating temperature is determined by the water flow rate, the heating power, and the full power of the post-heater.

2. The heating control method for a water heater according to claim 1, characterized in that, Also includes: The water storage temperature of the inner tank is determined based on the calorific value of the rear heater when it is operating at full power, the current calorific value of the inner tank, and the preset water consumption.

3. The heating control method for a water heater according to claim 1, characterized in that, Also includes: The water storage temperature of the inner tank is determined based on the calorific value of the rear heater when it is operating at full power, the current calorific value of the inner tank, and the user's habitual water consumption, wherein the habitual water consumption is determined by the user's historical water consumption data.

4. The heating control method for a water heater according to claim 2 or 3, characterized in that, When the water in the inner tank is heated to the storage temperature, the preheating heater stops heating. When the user uses water, the post-heater is turned on to heat the water to the preset outlet temperature.

5. The heating control method for a water heater according to claim 1, characterized in that, If the required heating power is determined to be less than or equal to the full power of the subsequent heater, the preheating heater is not turned on, and the subsequent heater is turned on based on the required heating power.

6. The heating control method for a water heater according to claim 1, characterized in that, When a user uses water, the heating power of the post-heater is adjusted in real time according to the actual water flow rate so that the outlet water temperature reaches the user's preset outlet water temperature.

7. A heating control device for a water heater, characterized in that, The heating control device of the water heater includes: a memory, a processor, and a heating control program of the water heater stored in the memory and running on the processor. When the heating control program of the water heater is executed by the processor, it implements the steps of the heating control method of the water heater as described in any one of claims 1 to 6.

8. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a heating control program for a water heater, which, when executed by a processor, implements the steps of the heating control method for a water heater as described in any one of claims 1 to 6.

9. A water heater, characterized in that, The water heater includes: Inner liner; A preheating heater, installed in the inner tank, is used to preheat the water flowing through the inner tank; A rear heater is installed downstream of the inner tank to heat the water flowing out of the inner tank so that the water temperature of the water heater reaches the preset outlet temperature. A controller, connected to the preheating heater and the post-heating heater, is used to execute the heating control method of the water heater according to any one of claims 1 to 6.

10. The water heater according to claim 9, characterized in that, The inner liner is provided with a heat exchange circuit, and the preheating heater is used to heat the heat exchange medium of the heat exchange circuit.

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