Water heater, residual hot water amount calculation method and device thereof and storage medium

Abstract

The invention discloses a water heater, a residual hot water amount calculation method and device thereof and a storage medium, and the method comprises the steps: obtaining the outdoor environment temperature and at least two actual water temperatures of the water heater, and determining the set water temperature of the water heater; determining a target calculation interval according to the water heater parameters and the outdoor environment temperature; determining a plurality of temperature reaching parameters according to the set water temperature and the target calculation interval; and the residual hot water amount of the water heater is calculated according to the judgment relation between the at least two actual water temperatures and the multiple temperature reaching parameters. According to the calculation method, the calculation method is simple, the residual hot water amount in the water tank of the water heater can be rapidly and accurately calculated, and a user can know the real hot water using condition.

Description

Technical Field

[0001] The present invention relates to the technical field of water heaters, and particularly to a method for calculating the remaining hot water volume of a water heater, a device for calculating the remaining hot water volume of a water heater, a computer-readable storage medium, and a water heater. Background Art

[0002] The remaining hot water volume reminder function enables users to know the situation of the remaining hot water volume in real time after the water heater is powered on, so as to more reasonably and timely arrange and adjust personal family life and avoid the situation of insufficient hot water in the middle.

[0003] However, the current calculation of the remaining hot water volume is not accurate enough. There is a situation where the remaining hot water volume is very low, but the water heater still does not start heating, or when the heating is turned off, the hot water volume has not reached the maximum, which brings a poor user experience. In addition, the algorithms provided by related technologies for calculating the remaining hot water volume are relatively complex, occupying more computing resources. Relatively speaking, the real-time performance of reflecting the remaining hot water volume is a bit poor. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems in the related technologies to some extent. For this purpose, the first object of the present invention is to propose a method for calculating the remaining hot water volume of a water heater, which determines a target calculation interval according to the water heater parameters and the outdoor ambient temperature, determines a plurality of temperature-reaching parameters according to the set water temperature and the target calculation interval, and then calculates the remaining hot water volume of the water heater according to the judgment relationship between at least two actual water temperatures and the plurality of temperature-reaching parameters. Thus, the remaining hot water volume in the water heater tank can be quickly and accurately calculated, enabling users to understand the real situation of using hot water.

[0005] The second object of the present invention is to propose a device for calculating the remaining hot water volume of a water heater.

[0006] The third object of the present invention is to propose a computer-readable storage medium.

[0007] The fourth object of the present invention is to propose a water heater.

[0008] To achieve the above object, the first aspect embodiment of the present invention proposes a method for calculating the remaining hot water volume of a water heater, the method comprising: obtaining the outdoor ambient temperature and at least two actual water temperatures of the water heater, and determining the set water temperature of the water heater; determining a target calculation interval according to the water heater parameters and the outdoor ambient temperature; determining a plurality of temperature-reaching parameters according to the set water temperature and the target calculation interval; and calculating the remaining hot water volume of the water heater according to the judgment relationship between the at least two actual water temperatures and the plurality of temperature-reaching parameters.

[0009] The method for calculating the remaining hot water volume of a hot water machine according to an embodiment of the present invention first obtains the outdoor ambient temperature and at least two actual water temperatures of the hot water machine, determines the set water temperature of the hot water machine, then determines a target calculation interval according to the hot water machine parameters and the outdoor ambient temperature, then determines a plurality of temperature reaching parameters according to the set water temperature and the target calculation interval, and finally calculates the remaining hot water volume of the hot water machine according to the judgment relationship between at least two actual water temperatures and the plurality of temperature reaching parameters. Thus, this method can quickly and accurately calculate the remaining hot water volume in the hot water machine water tank, enabling users to understand the actual hot water usage situation.

[0010] In addition, the method for calculating the remaining hot water volume of a hot water machine according to the above embodiment of the present invention may further have the following additional technical features:

[0011] According to an embodiment of the present invention, the determining the target calculation interval according to the hot water machine parameters and the outdoor ambient temperature includes: determining a plurality of calculation intervals according to the hot water machine parameters, where each of the calculation intervals corresponds to a temperature range; determining the target calculation interval according to the corresponding relationship between the outdoor ambient temperature and the plurality of calculation intervals.

[0012] According to an embodiment of the present invention, the determining the plurality of temperature reaching parameters according to the set water temperature and the target calculation interval includes: determining the corresponding temperature reaching calculation logic according to the target calculation interval, where each of the calculation intervals corresponds to a kind of temperature reaching calculation logic; determining the plurality of temperature reaching parameters according to the matching relationship between the set water temperature and the temperature reaching calculation logic.

[0013] According to an embodiment of the present invention, at least 6 of the plurality of temperature reaching parameters are included.

[0014] According to an embodiment of the present invention, the temperature reaching calculation logic includes a plurality of temperature judgment conditions, and the matching relationship is the logical relationship between the set water temperature and each of the temperature judgment conditions.

[0015] According to an embodiment of the present invention, at least some of the plurality of temperature reaching parameters are associated with each other.

[0016] According to an embodiment of the present invention, the hot water machine parameters include the heat pump type of the hot water machine.

[0017] According to an embodiment of the present invention, when the heat pump type is a variable frequency heat pump, the multiple temperature reaching parameters include the first to ninth temperature reaching parameters. Among them, calculating the remaining hot water volume of the water heater according to the judgment relationship between the at least two actual water temperatures and the multiple temperature reaching parameters includes: when the first actual water temperature among the at least two actual water temperatures is greater than or equal to the first temperature reaching parameter and the second actual water temperature among the at least two actual water temperatures is greater than or equal to the fifth temperature reaching parameter, determining that the remaining hot water volume is the first hot water volume; when the first actual water temperature is greater than or equal to the second temperature reaching parameter and less than the first temperature reaching parameter, and the second actual water temperature is greater than or equal to the sixth temperature reaching parameter, determining that the remaining hot water volume is the first hot water volume; when the first actual water temperature is greater than or equal to the first temperature reaching parameter and the second actual water temperature is less than the fifth temperature reaching parameter, determining that the remaining hot water volume is the second hot water volume, where the second hot water volume is less than the first hot water volume; when the first actual water temperature is greater than or equal to the second temperature reaching parameter and less than the first temperature reaching parameter, and the second actual water temperature is less than the sixth temperature reaching parameter, determining that the remaining hot water volume is the second hot water volume; when the first actual water temperature is greater than or equal to the third temperature reaching parameter and less than the second temperature reaching parameter, and the second actual water temperature is greater than or equal to the seventh temperature reaching parameter, determining that the remaining hot water volume is the second hot water volume; when the first actual water temperature is greater than or equal to the third temperature reaching parameter and less than the second temperature reaching parameter, and the second actual water temperature is less than the seventh temperature reaching parameter, determining that the remaining hot water volume is the third hot water volume, where the third hot water volume is less than the second hot water volume; when the first actual water temperature is greater than or equal to the fourth temperature reaching parameter and less than the third temperature reaching parameter, and the second actual water temperature is greater than or equal to the eighth temperature reaching parameter, determining that the remaining hot water volume is the third hot water volume; when the first actual water temperature is greater than or equal to the fourth temperature reaching parameter and less than the third temperature reaching parameter, and the second actual water temperature is less than the eighth temperature reaching parameter, determining that the remaining hot water volume is the fourth hot water volume, where the fourth hot water volume is less than the third hot water volume; when the first actual water temperature is greater than or equal to the ninth temperature reaching parameter and less than the fourth temperature reaching parameter, determining that the remaining hot water volume is the fifth hot water volume, where the fifth hot water volume is less than the fourth hot water volume; when the first actual water temperature is less than the ninth temperature reaching parameter, determining that the remaining hot water volume is the sixth hot water volume, where the sixth hot water volume is less than the fifth hot water volume.

[0018] According to an embodiment of the present invention, when the heat pump type is a fixed-frequency heat pump, the multiple temperature-reaching parameters include first to eighth temperature-reaching parameters. Among them, calculating the remaining hot water volume of the hot water machine according to the judgment relationship between the at least two actual water temperatures and the multiple temperature-reaching parameters includes: when the first actual water temperature among the at least two actual water temperatures is greater than or equal to the first temperature-reaching parameter and the second actual water temperature among the at least two actual water temperatures is greater than or equal to the fifth temperature-reaching parameter, determining that the remaining hot water volume is the first hot water volume; when the first actual water temperature is greater than or equal to the second temperature-reaching parameter and less than the first temperature-reaching parameter and the second actual water temperature is greater than or equal to the sixth temperature-reaching parameter, determining that the remaining hot water volume is the first hot water volume; when the first actual water temperature is greater than or equal to the first temperature-reaching parameter and the second actual water temperature is less than the fifth temperature-reaching parameter, determining that the remaining hot water volume is the second hot water volume, where the second hot water volume is less than the first hot water volume; when the first actual water temperature is greater than or equal to the second temperature-reaching parameter and less than the first temperature-reaching parameter and the second actual water temperature is less than the sixth temperature-reaching parameter, determining that the remaining hot water volume is the second hot water volume; when the first actual water temperature is greater than or equal to the third temperature-reaching parameter and less than the second temperature-reaching parameter and the second actual water temperature is greater than or equal to the seventh temperature-reaching parameter, determining that the remaining hot water volume is the second hot water volume; when the first actual water temperature is greater than or equal to the third temperature-reaching parameter and less than the second temperature-reaching parameter and the second actual water temperature is less than the seventh temperature-reaching parameter, determining that the remaining hot water volume is the third hot water volume, where the third hot water volume is less than the second hot water volume; when the first actual water temperature is greater than or equal to the fourth temperature-reaching parameter and less than the third temperature-reaching parameter and the second actual water temperature is greater than or equal to the eighth temperature-reaching parameter, determining that the remaining hot water volume is the third hot water volume; when the first actual water temperature is greater than or equal to the fourth temperature-reaching parameter and less than the third temperature-reaching parameter and the second actual water temperature is less than the eighth temperature-reaching parameter, determining that the remaining hot water volume is the fourth hot water volume, where the fourth hot water volume is less than the third hot water volume; when the first actual water temperature is less than the fourth temperature-reaching parameter, determining that the remaining hot water volume is the fifth hot water volume, where the fifth hot water volume is less than the fourth hot water volume.

[0019] To achieve the above object, an embodiment of the second aspect of the present invention provides a device for calculating the remaining hot water volume of a water heater, including: an acquisition module configured to acquire the outdoor ambient temperature and at least two actual water temperatures of the water heater; a first determination module configured to determine the set water temperature of the water heater; a second determination module configured to determine a target calculation interval according to the water heater parameters and the outdoor ambient temperature, and determine a plurality of temperature-reaching parameters according to the set water temperature and the target calculation interval; and a calculation module configured to calculate the remaining hot water volume of the water heater according to the judgment relationship between the at least two actual water temperatures and the plurality of temperature-reaching parameters.

[0020] According to the device for calculating the remaining hot water volume of a water heater of an embodiment of the present invention, the acquisition module is configured to acquire the outdoor ambient temperature and at least two actual water temperatures of the water heater, the first determination module is configured to determine the set water temperature of the water heater, the second determination module is configured to determine a target calculation interval according to the water heater parameters and the outdoor ambient temperature, and determine a plurality of temperature-reaching parameters according to the set water temperature and the target calculation interval, and the calculation module is configured to calculate the remaining hot water volume of the water heater according to the judgment relationship between the at least two actual water temperatures and the plurality of temperature-reaching parameters. Thus, the device can quickly and accurately calculate the remaining hot water volume in the water heater tank, enabling the user to understand the actual hot water usage situation.

[0021] To achieve the above object, an embodiment of the third aspect of the present invention provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the above-mentioned method for calculating the remaining hot water volume of a water heater is implemented.

[0022] According to the computer-readable storage medium of an embodiment of the present invention, by implementing the above-mentioned method for calculating the remaining hot water volume of a water heater when executed, the remaining hot water volume in the water heater tank can be quickly and accurately calculated, enabling the user to understand the actual hot water usage situation.

[0023] To achieve the above object, a water heater provided by an embodiment of the fourth aspect of the present invention includes a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the computer program, the above-mentioned method for calculating the remaining hot water volume of a water heater is implemented.

[0024] According to the water heater of an embodiment of the present invention, by executing the above-mentioned method for calculating the remaining hot water volume of a water heater, the remaining hot water volume in the water heater tank can be quickly and accurately calculated, enabling the user to understand the actual hot water usage situation.

[0025] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. Description of the Drawings

[0026] Figure 1Flow chart of the method for calculating the remaining hot water volume of a hot water machine according to an embodiment of the present invention;

[0027] Figure 2 Flow chart of the method for calculating the remaining hot water volume of a hot water machine according to a specific example of the present invention;

[0028] Figure 3 Block diagram of the device for calculating the remaining hot water volume of a hot water machine according to an embodiment of the present invention;

[0029] Figure 4 Block diagram of a hot water machine according to an embodiment of the present invention. Detailed implementation manners

[0030] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation of the present invention.

[0031] The method for calculating the remaining hot water volume of a hot water machine, the device for calculating the remaining hot water volume of a hot water machine, the computer-readable storage medium, and the hot water machine proposed according to the embodiments of the present invention will be described below with reference to the accompanying drawings.

[0032] Figure 1 Flow chart of the method for calculating the remaining hot water volume of a hot water machine according to an embodiment of the present invention.

[0033] As Figure 1 shown, the method for calculating the remaining hot water volume of a hot water machine according to an embodiment of the present invention may include the following steps:

[0034] S1. Obtain the outdoor ambient temperature and at least two actual water temperatures of the hot water machine, and determine the set water temperature of the hot water machine.

[0035] S2. Determine the target calculation interval according to the hot water machine parameters and the outdoor ambient temperature.

[0036] S3. Determine a plurality of temperature reaching parameters according to the set water temperature and the target calculation interval.

[0037] S4. Calculate the remaining hot water volume of the hot water machine according to the judgment relationship between at least two actual water temperatures and a plurality of temperature reaching parameters.

[0038] Specifically, when calculating the remaining hot water volume of the water heater, first obtain the outdoor ambient temperature and at least two actual water temperatures of the water heater. For example, the outdoor ambient temperature can be obtained through an outdoor temperature sensor, and the actual water temperature of the water heater can be obtained by setting temperature sensors in the water tank of the water heater. To more accurately determine the actual water temperature of the water heater, at least two temperature sensors can be set inside the water tank of the water heater. For example, the water temperature at the upper part of the water tank can be obtained through one temperature sensor, and the water temperature at the lower part of the water tank can be obtained through another temperature sensor. It should be noted that the water temperature at the upper part of the water tank may be the same as or different from the water temperature at the lower part of the water tank. In addition, the accuracy of obtaining the actual water temperature of the water heater can be further improved. For example, three or more temperature sensors can be set, such as one temperature sensor can be set at the upper, middle, and lower positions of the water tank respectively to more accurately reflect the actual water temperature situation of the water tank of the water heater.

[0039] The set water temperature of the water heater can be set by the user. For example, the user can select the required water temperature through the control panel of the water heater, or the user can also set the required water temperature through a mobile device interconnected with the water heater. For example, in the corresponding application program of the mobile phone, the user can also set the required water temperature. After the user makes the setting, the set water temperature of the water heater can be determined.

[0040] Due to different water heater parameters, the highest water temperature that can be heated during operation is different. That is to say, different water heater parameters are mainly reflected in different compressor models, and the amount of heat that can be brought to the water tank during operation is inconsistent, that is, the highest water temperature that the water heater can reach is inconsistent. Different outdoor ambient temperatures or different water heater parameters can determine different target calculation intervals. Therefore, the target calculation interval can be determined according to the water heater parameters and the outdoor ambient temperature. For example, multiple calculation intervals can be determined according to the water heater parameters, and then after obtaining the outdoor ambient temperature, the target calculation interval can be determined according to the corresponding relationship between the outdoor ambient temperature and the multiple calculation intervals.

[0041] After determining the target calculation interval, multiple temperature-reaching parameters can be determined according to the set water temperature and the target calculation interval. Then, the remaining hot water volume of the water heater can be calculated based on the judgment relationship between at least two actual water temperatures and the multiple temperature-reaching parameters. Among them, the more the number of temperature-reaching parameters, the more detailed the remaining hot water volume of the current water heater can be reflected. For example, there are corresponding temperature calculation rules in the target calculation interval. After determining a set water temperature, multiple temperature-reaching parameters can be determined according to the pre-set temperature calculation rules. Then, based on the judgment relationship between at least two actual water temperatures and the multiple temperature-reaching parameters, taking two actual water temperatures as an example, the remaining hot water volume of the water heater can be calculated according to the magnitude relationship between the temperature difference of the two actual water temperatures and the multiple temperature-reaching parameters, or the remaining hot water volume of the water heater can be calculated according to the magnitude relationship between the sum of the temperatures of the two actual water temperatures and the multiple temperature-reaching parameters, or the remaining hot water volume of the water heater can be calculated according to the magnitude relationship between each actual water temperature and the multiple temperature-reaching parameters. That is to say, the temperature-reaching parameters are equivalent to the criteria for judging the remaining hot water volume. When the actual water temperature is greater than a certain temperature-reaching parameter, the remaining hot water volume can be correspondingly determined. Thus, this method can quickly and accurately calculate the remaining hot water volume in the water heater tank, enabling users to understand the actual hot water usage situation.

[0042] According to an embodiment of the present invention, determining the target calculation interval according to the water heater parameters and the outdoor ambient temperature includes: determining multiple calculation intervals according to the water heater parameters, where each calculation interval corresponds to a temperature range; determining the target calculation interval according to the correspondence between the outdoor ambient temperature and the multiple calculation intervals. Among them, the water heater parameters include the heat pump type of the water heater.

[0043] Specifically, when determining the target calculation interval according to the water heater parameters and the outdoor ambient temperature, first, multiple calculation intervals can be determined according to the water heater parameters. The number of calculation intervals corresponding to different water heater parameters is different. Among them, the water heater parameters can include the heat pump type of the water heater. Different models of water heaters can use different heat pump types. For example, the water heater can use a variable-frequency heat pump or a fixed-frequency heat pump. Due to the different designed operating ranges of the heat pump, the achievable water temperatures are different. Thus, multiple calculation intervals can be determined according to the heat pump type of the water heater, and each calculation interval corresponds to a temperature range.

[0044] For example, when a certain model of variable-frequency heat pump is used in a water heater, seven calculation intervals can be determined, such as calculation interval A1 (corresponding temperature range above 40 degrees Celsius), calculation interval A2 (corresponding temperature range from 32 degrees Celsius to 40 degrees Celsius), calculation interval B (corresponding temperature range from 20 degrees Celsius to 32 degrees Celsius), calculation interval C1 (corresponding temperature range from 8 degrees Celsius to 20 degrees Celsius), calculation interval C2 (corresponding temperature range from -2 degrees Celsius to 8 degrees Celsius), calculation interval C3 (corresponding temperature range from -8 degrees Celsius to -2 degrees Celsius), and calculation interval C4 (corresponding temperature range below -8 degrees Celsius).

[0045] After determining multiple calculation intervals, the target calculation interval can be determined according to the corresponding relationship between the outdoor ambient temperature and the multiple calculation intervals. For example, still taking the seven calculation intervals determined by the above variable-frequency heat pump as an example, when the outdoor ambient temperature is greater than 40 degrees Celsius, such as the outdoor ambient temperature is 42 degrees Celsius, the target calculation interval can be determined as calculation interval A1. Another example is that when the outdoor ambient temperature is between 32 degrees Celsius and 40 degrees Celsius, such as the outdoor ambient temperature is 35 degrees Celsius, the target calculation interval can be determined as calculation interval A2. Another example is that when the outdoor ambient temperature is between 20 degrees Celsius and 32 degrees Celsius, such as the outdoor ambient temperature is 28 degrees Celsius, the target calculation interval can be determined as calculation interval B. Another example is that when the outdoor ambient temperature is between 8 degrees Celsius and 20 degrees Celsius, such as the outdoor ambient temperature is 16 degrees Celsius, the target calculation interval can be determined as calculation interval C1. Another example is that when the outdoor ambient temperature is between -2 degrees Celsius and 8 degrees Celsius, such as the outdoor ambient temperature is 5 degrees Celsius, the target calculation interval can be determined as calculation interval C2. Another example is that when the outdoor ambient temperature is between -8 degrees Celsius and -2 degrees Celsius, such as the outdoor ambient temperature is -5 degrees Celsius, the target calculation interval can be determined as calculation interval C3. Another example is that when the outdoor ambient temperature is less than -8 degrees Celsius, such as the outdoor ambient temperature is -10 degrees Celsius, the target calculation interval can be determined as calculation interval C4.

[0046] For example, when a certain model of fixed-frequency heat pump is used in a water heater, four calculation intervals can be determined, such as calculation interval A1 (corresponding temperature range above 40 degrees Celsius), calculation interval A2 (corresponding temperature range from 32 degrees Celsius to 40 degrees Celsius), calculation interval B (corresponding temperature range from 14 degrees Celsius to 32 degrees Celsius), and calculation interval C1 (corresponding temperature range below 14 degrees Celsius).

[0047] After determining multiple calculation intervals, the target calculation interval can be determined according to the correspondence between the outdoor ambient temperature and the multiple calculation intervals. For example, still taking the four calculation intervals determined by the above-mentioned fixed-frequency heat pump as an example, when the outdoor ambient temperature is greater than 40 degrees Celsius, such as when the outdoor ambient temperature is 41 degrees Celsius, the target calculation interval can be determined as calculation interval A1. Another example is that when the outdoor ambient temperature is between 32 degrees Celsius and 40 degrees Celsius, such as when the outdoor ambient temperature is 33 degrees Celsius, the target calculation interval can be determined as calculation interval A2. Another example is that when the outdoor ambient temperature is between 14 degrees Celsius and 32 degrees Celsius, such as when the outdoor ambient temperature is 20 degrees Celsius, the target calculation interval can be determined as calculation interval B. Another example is that when the outdoor ambient temperature is less than 14 degrees Celsius, such as when the outdoor ambient temperature is 10 degrees Celsius, the target calculation interval can be determined as calculation interval C.

[0048] It should be noted that considering the stability of the interval, the interval calculation needs to distinguish between the rising trend and the falling trend (using the dead zone to avoid critical point fluctuations). For example, taking the seven calculation intervals determined by the above-mentioned variable-frequency heat pump as an example, when the outdoor ambient temperature is greater than 32 degrees Celsius, such as when the outdoor ambient temperature is 35 degrees Celsius, the target calculation interval can be determined as calculation interval A2. If the outdoor ambient temperature decreases at this time, such as decreasing to 31 degrees Celsius, the target calculation interval is still determined as calculation interval A2, that is, to avoid the change of the target calculation interval caused by small temperature fluctuations. Another example is taking the four calculation intervals determined by the above-mentioned fixed-frequency heat pump as an example. When the outdoor ambient temperature is greater than 40 degrees Celsius, such as when the outdoor ambient temperature is 41 degrees Celsius, the target calculation interval can be determined as calculation interval A1. If the outdoor ambient temperature decreases at this time, such as decreasing to 39 degrees Celsius, the target calculation interval is still determined as calculation interval A1, that is, to avoid the change of the target calculation interval caused by small temperature fluctuations. In addition, for the division of the calculation interval, it can also be more. There is no limit to the number of intervals. The more the number, the greater the calculation amount, but the higher the accuracy of calculating the remaining hot water volume.

[0049] According to an embodiment of the present invention, multiple temperature reaching parameters are determined according to the set water temperature and the target calculation interval, including: determining the corresponding temperature reaching calculation logic according to the target calculation interval, where each calculation interval corresponds to a temperature reaching calculation logic; determining multiple temperature reaching parameters according to the matching relationship between the set water temperature and the temperature reaching calculation logic. Among them, the multiple temperature reaching parameters include at least 6, and at least some of the multiple temperature reaching parameters are associated with each other.

[0050] Further, according to an embodiment of the present invention, the temperature reaching calculation logic includes multiple temperature judgment conditions, and the matching relationship is the logical relationship between the set water temperature and each temperature judgment condition.

[0051] Specifically, when determining multiple temperature-reaching parameters according to the set water temperature and the target calculation interval, the corresponding temperature-reaching calculation logic can be determined according to the target calculation interval. Different target intervals correspond to different temperature-reaching calculation logics. Among them, the temperature-reaching calculation logic can include multiple temperature judgment conditions. That is to say, different target intervals correspond to different temperature judgment conditions. Then, multiple temperature-reaching parameters can be determined according to the logical relationship between the set water temperature and the temperature judgment conditions.

[0052] For example, according to the seven calculation intervals determined by the above-mentioned heat pump water heater using a variable frequency heat pump, taking the target calculation interval as calculation interval B as an example, when the set water temperature of the heat pump water heater is greater than or equal to 56 °C, the first temperature-reaching parameter can be determined to be 53 °C; otherwise, the first temperature-reaching parameter can be determined to be the set water temperature minus 2 °C. There is a correlation between at least some of the multiple temperature-reaching parameters. For example, some temperature parameters can differ by a preset value. When the set water temperature of the heat pump water heater is greater than or equal to 47 °C, the second temperature-reaching parameter can be determined to be the first temperature-reaching parameter minus 2 °C; otherwise, the second temperature-reaching parameter can be determined to be the first temperature-reaching parameter minus 1 °C. When the set water temperature of the heat pump water heater is greater than or equal to 50 °C, the third temperature-reaching parameter can be determined to be the second temperature-reaching parameter minus 4 °C. When the set water temperature of the heat pump water heater is greater than or equal to 44 °C and less than 50 °C, the third temperature-reaching parameter can be determined to be the second temperature-reaching parameter minus 3 °C. When the set water temperature of the heat pump water heater is greater than or equal to 40 °C and less than 44 °C, the third temperature-reaching parameter can be determined to be the second temperature-reaching parameter minus 2 °C. When the set water temperature of the heat pump water heater is less than 40 °C, the third temperature-reaching parameter can be determined to be the second temperature-reaching parameter minus 2 °C. When the set water temperature of the heat pump water heater is greater than or equal to 54 °C, the fourth temperature-reaching parameter can be determined to be the third temperature-reaching parameter minus 6 °C. When the set water temperature of the heat pump water heater is greater than or equal to 51 °C and less than 54 °C, the fourth temperature-reaching parameter can be determined to be the third temperature-reaching parameter minus 5 °C. When the set water temperature of the heat pump water heater is greater than or equal to 46 °C and less than 51 °C, the fourth temperature-reaching parameter can be determined to be the third temperature-reaching parameter minus 4 °C. When the set water temperature of the heat pump water heater is greater than or equal to 43 °C and less than 46 °C, the fourth temperature-reaching parameter can be determined to be the third temperature-reaching parameter minus 3 °C. When the set water temperature of the heat pump water heater is less than 43 °C, the fourth temperature-reaching parameter can be determined to be the third temperature-reaching parameter minus 2 °C.

[0053] There is a correlation between at least some of the multiple temperature-reaching parameters. For example, at least some of the multiple temperature-reaching parameters can be the same. That is, the fifth temperature-reaching parameter can be equal to the fourth temperature-reaching parameter, the sixth temperature-reaching parameter can be equal to the first temperature-reaching parameter, the seventh temperature-reaching parameter is the third temperature-reaching parameter minus 1 degree Celsius, the eighth temperature-reaching parameter is the fourth temperature-reaching parameter minus 1 degree Celsius. When the set water temperature of the water heater is greater than or equal to 45 degrees Celsius, it can be determined that the ninth temperature-reaching parameter is the fourth temperature-reaching parameter minus 2 degrees Celsius; otherwise, it can be determined that the ninth temperature-reaching parameter is the fourth temperature-reaching parameter minus 1 degree Celsius.

[0054] Taking the set water temperature of the water heater determined to be 55 degrees Celsius as an example, through the above calculation logic, it can be determined that the first temperature-reaching parameter is 53 degrees Celsius, the second temperature-reaching parameter is 51 degrees Celsius, the third temperature-reaching parameter is 47 degrees Celsius, the fourth temperature-reaching parameter is 41 degrees Celsius, the fifth temperature-reaching parameter is 41 degrees Celsius, the sixth temperature-reaching parameter is 53 degrees Celsius, the seventh temperature-reaching parameter is 46 degrees Celsius, the eighth temperature-reaching parameter is 40 degrees Celsius, and the ninth temperature-reaching parameter is 39 degrees Celsius.

[0055] In addition, according to the four calculation intervals determined by the above fixed-frequency heat pump, taking the target calculation interval as calculation interval B as an example, when the set water temperature of the water heater is greater than or equal to 56 °C, the first temperature reaching parameter can be determined to be 53 °C; otherwise, the first temperature reaching parameter can be determined to be the set water temperature minus 2 °C. There is a correlation between at least some of the multiple temperature reaching parameters. For example, some of the temperature reaching parameters can differ by a preset value. When the set water temperature of the water heater is greater than or equal to 47 °C, the second temperature reaching parameter can be determined to be the first temperature reaching parameter minus 2 °C; otherwise, the second temperature reaching parameter can be determined to be the first temperature reaching parameter minus 1 °C. When the set water temperature of the water heater is greater than or equal to 50 °C, the third temperature reaching parameter can be determined to be the second temperature reaching parameter minus 4 °C; when the set water temperature of the water heater is greater than or equal to 44 °C and less than 50 °C, the third temperature reaching parameter can be determined to be the second temperature reaching parameter minus 3 °C; when the set water temperature of the water heater is greater than or equal to 40 °C and less than 44 °C, the third temperature reaching parameter can be determined to be the second temperature reaching parameter minus 2 °C; when the set water temperature of the water heater is less than 40 °C, the third temperature reaching parameter can be determined to be the second temperature reaching parameter minus 2 °C. When the set water temperature of the water heater is greater than or equal to 54 °C, the fourth temperature reaching parameter can be determined to be the third temperature reaching parameter minus 6 °C; when the set water temperature of the water heater is greater than or equal to 51 °C and less than 54 °C, the fourth temperature reaching parameter can be determined to be the third temperature reaching parameter minus 5 °C; when the set water temperature of the water heater is greater than or equal to 46 °C and less than 51 °C, the fourth temperature reaching parameter can be determined to be the third temperature reaching parameter minus 4 °C; when the set water temperature of the water heater is greater than or equal to 43 °C and less than 46 °C, the fourth temperature reaching parameter can be determined to be the third temperature reaching parameter minus 3 °C; when the set water temperature of the water heater is less than 43 °C, the fourth temperature reaching parameter can be determined to be the third temperature reaching parameter minus 2 °C.

[0056] There is a correlation between at least some of the multiple temperature reaching parameters. For example, at least some of the multiple temperature reaching parameters can be the same. The fifth temperature reaching parameter is equal to the fourth temperature reaching parameter, the sixth temperature reaching parameter is equal to the first temperature reaching parameter, the seventh temperature reaching parameter is the third temperature reaching parameter minus 1 °C, and the eighth temperature reaching parameter is the fourth temperature reaching parameter minus 1 °C.

[0057] Taking the set water temperature of a certain water heater being 55 degrees Celsius as an example, through the above calculation logic, the first temperature reaching parameter can be determined to be 53 degrees Celsius, the second temperature reaching parameter to be 51 degrees Celsius, the third temperature reaching parameter to be 47 degrees Celsius, the fourth temperature reaching parameter to be 41 degrees Celsius, the fifth temperature reaching parameter to be 41 degrees Celsius, the sixth temperature reaching parameter to be 53 degrees Celsius, the seventh temperature reaching parameter to be 46 degrees Celsius, and the eighth temperature reaching parameter to be 40 degrees Celsius. It should be noted that since the fourth temperature reaching parameter is the same as the fifth temperature reaching parameter, and the sixth temperature reaching parameter is the same as the first temperature reaching parameter, six temperature reaching parameters can be determined to proceed with the subsequent comparison between the actual temperature and the temperature reaching parameters, thereby calculating the remaining hot water volume.

[0058] According to an embodiment of the present invention, in the case where the heat pump type is a variable frequency heat pump, the multiple temperature reaching parameters include the first to the ninth temperature reaching parameters. Among them, calculating the remaining hot water volume of the water heater according to the judgment relationship between at least two actual water temperatures and the multiple temperature reaching parameters includes: when the first actual water temperature among the at least two actual water temperatures is greater than or equal to the first temperature reaching parameter and the second actual water temperature among the at least two actual water temperatures is greater than or equal to the fifth temperature reaching parameter, determining the remaining hot water volume to be the first hot water volume; when the first actual water temperature is greater than or equal to the second temperature reaching parameter and less than the first temperature reaching parameter, and the second actual water temperature is greater than or equal to the sixth temperature reaching parameter, determining the remaining hot water volume to be the first hot water volume; when the first actual water temperature is greater than or equal to the first temperature reaching parameter and the second actual water temperature is less than the fifth temperature reaching parameter, determining the remaining hot water volume to be the second hot water volume, where the second hot water volume is less than the first hot water volume; when the first actual water temperature is greater than or equal to the second temperature reaching parameter and less than the first temperature reaching parameter, and the second actual water temperature is less than the sixth temperature reaching parameter, determining the remaining hot water volume to be the second hot water volume; when the first actual water temperature is greater than or equal to the third temperature reaching parameter and less than the second temperature reaching parameter, and the second actual water temperature is greater than or equal to the seventh temperature reaching parameter, determining the remaining hot water volume to be the second hot water volume; when the first actual water temperature is greater than or equal to the third temperature reaching parameter and less than the second temperature reaching parameter, and the second actual water temperature is less than the seventh temperature reaching parameter, determining the remaining hot water volume to be the third hot water volume, where the third hot water volume is less than the second hot water volume; when the first actual water temperature is greater than or equal to the fourth temperature reaching parameter and less than the third temperature reaching parameter, and the second actual water temperature is greater than or equal to the eighth temperature reaching parameter, determining the remaining hot water volume to be the third hot water volume; when the first actual water temperature is greater than or equal to the fourth temperature reaching parameter and less than the third temperature reaching parameter, and the second actual water temperature is less than the eighth temperature reaching parameter, determining the remaining hot water volume to be the fourth hot water volume, where the fourth hot water volume is less than the third hot water volume; when the first actual water temperature is greater than or equal to the ninth temperature reaching parameter and less than the fourth temperature reaching parameter, determining the remaining hot water volume to be the fifth hot water volume, where the fifth hot water volume is less than the fourth hot water volume; when the first actual water temperature is less than the ninth temperature reaching parameter, determining the remaining hot water volume to be the sixth hot water volume, where the sixth hot water volume is less than the fifth hot water volume.

[0059] Specifically, when the heat pump type is a variable-frequency heat pump, the multiple temperature-reaching parameters may include the first temperature-reaching parameter to the ninth temperature-reaching parameter. When calculating the remaining hot water volume of the water heater according to the judgment relationship between at least two actual water temperatures and the multiple temperature-reaching parameters, taking the acquisition of two actual water temperatures as an example, namely the first actual water temperature and the second actual water temperature, the magnitude relationships between the first water temperature and the second water temperature and the multiple temperature-reaching parameters are respectively compared. If the first actual water temperature is greater than or equal to the first temperature-reaching parameter and the second actual water temperature is greater than or equal to the fifth temperature-reaching parameter, it indicates that the water temperature in the current water heater tank is relatively high, and the remaining hot water volume can be determined as the first hot water volume, that is, the hot water volume that can reach the user-set temperature in the tank is 100%. If the first actual water temperature is greater than or equal to the second temperature-reaching parameter and less than the first temperature-reaching parameter and the second actual water temperature is greater than or equal to the sixth temperature-reaching parameter, it also indicates that the water temperature in the current water heater tank is relatively high, and the remaining hot water volume can be determined as the first hot water volume, that is, the hot water volume that can reach the user-set temperature in the tank is 100%.

[0060] If the first actual water temperature is greater than or equal to the first temperature-reaching parameter and the second actual water temperature is less than the fifth temperature-reaching parameter, it indicates that the water temperature in the water heater tank is partially low, and the remaining hot water volume can be determined as the second hot water volume, and the second hot water volume is less than the first hot water volume, that is, the hot water volume that can reach the user-set temperature in the tank is 80%. If the first actual water temperature is greater than or equal to the second temperature-reaching parameter and less than the first temperature-reaching parameter and the second actual water temperature is less than the sixth temperature-reaching parameter, it also indicates that the water temperature in the water heater tank is partially low, and the remaining hot water volume can be determined as the second hot water volume, and the second hot water volume is less than the first hot water volume, that is, the hot water volume that can reach the user-set temperature in the tank is 80%. If the first actual water temperature is greater than or equal to the third temperature-reaching parameter and less than the second temperature-reaching parameter and the second actual water temperature is greater than or equal to the seventh temperature-reaching parameter, it also indicates that the water temperature in the water heater tank is partially low, and the remaining hot water volume can be determined as the second hot water volume, and the second hot water volume is less than the first hot water volume, that is, the hot water volume that can reach the user-set temperature in the tank is 80%.

[0061] If the first actual water temperature is greater than or equal to the third temperature-reaching parameter and less than the second temperature-reaching parameter and the second actual water temperature is less than the seventh temperature-reaching parameter, it indicates that the water temperature in the water heater tank is partially low, and the remaining hot water volume can be determined as the third hot water volume, and the third hot water volume is less than the second hot water volume, that is, the hot water volume that can reach the user-set temperature in the tank is 60%. If the first actual water temperature is greater than or equal to the fourth temperature-reaching parameter and less than the third temperature-reaching parameter and the second actual water temperature is greater than or equal to the eighth temperature-reaching parameter, it indicates that the water temperature in the water heater tank is partially low, and the remaining hot water volume can be determined as the third hot water volume, and the third hot water volume is less than the second hot water volume, that is, the hot water volume that can reach the user-set temperature in the tank is 60%.

[0062] If the first actual water temperature is greater than or equal to the fourth temperature - reaching parameter and less than the third temperature - reaching parameter, and the second actual water temperature is less than the eighth temperature - reaching parameter, it indicates that most of the remaining hot water in the water heater tank has become relatively low after being used by the user. The remaining hot water volume can be determined as the fourth hot water volume, and the fourth hot water volume is less than the third hot water volume, that is, the hot water volume that can reach the user - set temperature in the tank is 40%.

[0063] If the first actual water temperature is greater than or equal to the ninth temperature - reaching parameter and less than the fourth temperature - reaching parameter, regardless of the value of the second actual water temperature in degrees Celsius at this time, it indicates that the remaining hot water volume in the water heater tank is relatively low. The remaining hot water volume can be determined as the fifth hot water volume, and the fifth hot water volume is less than the fourth hot water volume, that is, the hot water volume that can reach the user - set temperature in the tank is 20%.

[0064] If the first actual water temperature is less than the ninth temperature - reaching parameter, regardless of the value of the second actual water temperature in degrees Celsius at this time, it indicates that the water in the current water heater tank can no longer meet the normal water - using temperature required by the user after continuous use by the user. The remaining hot water volume can be determined as the sixth hot water volume, and the sixth hot water volume is less than the fifth hot water volume, that is, the hot water volume that can reach the user - set temperature in the tank is 0%.

[0065] Taking the outdoor ambient temperature of 28 degrees Celsius, the first actual water temperature and the second actual water temperature both being 45 degrees Celsius, and the set temperature of the water heater being 55 degrees Celsius as an example, according to the seven calculation intervals determined by the above - mentioned compressor using a variable - frequency heat pump, it can be determined that the first actual water temperature is greater than or equal to the fourth temperature - reaching parameter (41 degrees Celsius) and less than the third temperature - reaching parameter (47 degrees Celsius), and the second actual water temperature is greater than or equal to the eighth temperature - reaching parameter (40 degrees Celsius). Thus, the remaining hot water volume of the water heater can be determined as the third hot water volume, that is, the hot water volume that can reach the user's temperature in the tank is 60%. The user can control the hot - water - using time according to the remaining hot water volume. Therefore, this method is simple and convenient, enabling the user to quickly determine the remaining hot water volume of the water heater.

[0066] It should be noted that when there are three or more actual water temperatures, the magnitude relationship between the actual water temperatures and multiple temperature - reaching parameters can also be compared in the same way to more accurately calculate the remaining hot water volume of the water heater.

[0067] According to an embodiment of the present invention, in the case where the heat pump type is a fixed-frequency heat pump, the multiple temperature-reached parameters include the first to eighth temperature-reached parameters. Among them, calculating the remaining hot water volume of the water heater according to the judgment relationship between at least two actual water temperatures and the multiple temperature-reached parameters includes: when the first actual water temperature among the at least two actual water temperatures is greater than or equal to the first temperature-reached parameter and the second actual water temperature among the at least two actual water temperatures is greater than or equal to the fifth temperature-reached parameter, determining that the remaining hot water volume is the first hot water volume; when the first actual water temperature is greater than or equal to the second temperature-reached parameter and less than the first temperature-reached parameter, and the second actual water temperature is greater than or equal to the sixth temperature-reached parameter, determining that the remaining hot water volume is the first hot water volume; when the first actual water temperature is greater than or equal to the first temperature-reached parameter and the second actual water temperature is less than the fifth temperature-reached parameter, determining that the remaining hot water volume is the second hot water volume, where the second hot water volume is less than the first hot water volume; when the first actual water temperature is greater than or equal to the second temperature-reached parameter and less than the first temperature-reached parameter, and the second actual water temperature is less than the sixth temperature-reached parameter, determining that the remaining hot water volume is the second hot water volume; when the first actual water temperature is greater than or equal to the third temperature-reached parameter and less than the second temperature-reached parameter, and the second actual water temperature is greater than or equal to the seventh temperature-reached parameter, determining that the remaining hot water volume is the second hot water volume; when the first actual water temperature is greater than or equal to the third temperature-reached parameter and less than the second temperature-reached parameter, and the second actual water temperature is less than the seventh temperature-reached parameter, determining that the remaining hot water volume is the third hot water volume, where the third hot water volume is less than the second hot water volume; when the first actual water temperature is greater than or equal to the fourth temperature-reached parameter and less than the third temperature-reached parameter, and the second actual water temperature is greater than or equal to the eighth temperature-reached parameter, determining that the remaining hot water volume is the third hot water volume; when the first actual water temperature is greater than or equal to the fourth temperature-reached parameter and less than the third temperature-reached parameter, and the second actual water temperature is less than the eighth temperature-reached parameter, determining that the remaining hot water volume is the fourth hot water volume, where the fourth hot water volume is less than the third hot water volume; when the first actual water temperature is less than the fourth temperature-reached parameter, determining that the remaining hot water volume is the fifth hot water volume, where the fifth hot water volume is less than the fourth hot water volume.

[0068] Specifically, when the heat pump type is a fixed-frequency heat pump, the multiple temperature-reached parameters may include the first temperature-reached parameter to the eighth temperature-reached parameter. When calculating the remaining hot water volume of the water heater based on the judgment relationship between at least two actual water temperatures and the multiple temperature-reached parameters, taking the acquisition of two actual water temperatures as an example, namely the first actual water temperature and the second actual water temperature, the magnitude relationships between the first water temperature and the second water temperature and the multiple temperature-reached parameters are compared respectively. If the first actual water temperature is greater than or equal to the first temperature-reached parameter and the second actual water temperature is greater than or equal to the fifth temperature-reached parameter, it indicates that the water temperature in the current water heater tank is relatively high, and the remaining hot water volume can be determined as the first hot water volume, that is, the hot water volume that can reach the user-set temperature in the tank is 100%. If the first actual water temperature is greater than or equal to the second temperature-reached parameter and less than the first temperature-reached parameter and the second actual water temperature is greater than or equal to the sixth temperature-reached parameter, it also indicates that the water temperature in the current water heater tank is relatively high, and the remaining hot water volume can be determined as the first hot water volume, that is, the hot water volume that can reach the user-set temperature in the tank is 100%.

[0069] If the first actual water temperature is greater than or equal to the first temperature-reached parameter and the second actual water temperature is less than the fifth temperature-reached parameter, it indicates that the water temperature in part of the water heater tank is relatively low, and the remaining hot water volume can be determined as the second hot water volume, and the second hot water volume is less than the first hot water volume, that is, the hot water volume that can reach the user-set temperature in the tank is 75%. If the first actual water temperature is greater than or equal to the second temperature-reached parameter and less than the first temperature-reached parameter and the second actual water temperature is less than the sixth temperature-reached parameter, it also indicates that the water temperature in part of the water heater tank is relatively low, and the remaining hot water volume can be determined as the second hot water volume, and the second hot water volume is less than the first hot water volume, that is, the hot water volume that can reach the user-set temperature in the tank is 75%. If the first actual water temperature is greater than or equal to the third temperature-reached parameter and less than the second temperature-reached parameter and the second actual water temperature is greater than or equal to the seventh temperature-reached parameter, it also indicates that the water temperature in part of the water heater tank is relatively low, and the remaining hot water volume can be determined as the second hot water volume, and the second hot water volume is less than the first hot water volume, that is, the hot water volume that can reach the user-set temperature in the tank is 75%.

[0070] If the first actual water temperature is greater than or equal to the third temperature-reached parameter and less than the second temperature-reached parameter and the second actual water temperature is less than the seventh temperature-reached parameter, it indicates that the water temperature in part of the water heater tank is relatively low, and the remaining hot water volume can be determined as the third hot water volume, and the third hot water volume is less than the second hot water volume, that is, the hot water volume that can reach the user-set temperature in the tank is 50%. If the first actual water temperature is greater than or equal to the fourth temperature-reached parameter and less than the third temperature-reached parameter and the second actual water temperature is greater than or equal to the eighth temperature-reached parameter, it indicates that the water temperature in part of the water heater tank is relatively low, and the remaining hot water volume can be determined as the third hot water volume, and the third hot water volume is less than the second hot water volume, that is, the hot water volume that can reach the user-set temperature in the tank is 50%.

[0071] If the first actual water temperature is greater than or equal to the fourth temperature - reaching parameter and less than the third temperature - reaching parameter, and the second actual water temperature is less than the eighth temperature - reaching parameter, it indicates that most of the remaining hot water in the water heater tank has become relatively low after being used by the user. The remaining hot water volume can be determined as the fourth hot water volume, and the fourth hot water volume is less than the third hot water volume, that is, the hot water volume that can reach the user - set temperature in the tank is 25%.

[0072] If the first actual water temperature is less than the fourth temperature - reaching parameter, regardless of the value of the second actual water temperature in degrees Celsius, it indicates that the water in the current water heater tank can no longer meet the normal water - using temperature required by the user after continuous use by the user. The remaining hot water volume can be determined as the fifth hot water volume, and the fifth hot water volume is less than the fourth hot water volume, that is, the hot water volume that can reach the user - set temperature in the tank is 0%.

[0073] Taking the outdoor ambient temperature of 28 degrees Celsius, the first actual water temperature of 48 degrees Celsius, the second actual water temperature of 44 degrees Celsius, and the set temperature of the water heater of 55 degrees Celsius as an example, according to the four calculation intervals determined by the above - mentioned constant - frequency heat pump for the compressor, it can be determined that the first actual water temperature is greater than or equal to the third temperature - reaching parameter (47 degrees Celsius) and less than the second temperature - reaching parameter (51 degrees Celsius), and the second actual water temperature is less than the seventh temperature - reaching parameter (46 degrees Celsius). Thus, the remaining hot water volume of the water heater can be determined as the third hot water volume, that is, the hot water volume that can reach the user's temperature in the tank is 50%. The user can control the hot - water - using time according to the remaining hot water volume. Therefore, this method is simple and convenient, enabling the user to quickly determine the remaining hot water volume of the water heater.

[0074] It should be noted that when there are three or more actual water temperatures, the magnitude relationship between the actual water temperatures and multiple temperature - reaching parameters can also be compared in the same way to calculate the remaining hot water volume of the water heater more accurately.

[0075] After obtaining the remaining hot water volume of the water heater, if the current water temperature does not reach the set temperature of the water heater, it can be continuously turned on for heating until the current water temperature reaches the set temperature of the water heater and then stops. Additionally, in an embodiment of the present invention, the remaining hot water volume can be displayed on the display panel of the water heater. For example, when the heat pump type of the water heater is a variable-frequency heat pump, five grids can represent the remaining hot water volume of 100%, four grids represent the remaining hot water volume of 80%, three grids represent the remaining hot water volume of 60%, two grids represent the hot water volume of 40%, one grid represents the remaining hot water volume of 20%, and zero grids represent the remaining hot water volume of 0. When the heat pump type of the water heater is a fixed-frequency heat pump, four grids can represent the hot water volume of 100%, three grids represent the remaining hot water volume of 75%, two grids represent the hot water volume of 50%, one grid represents the remaining hot water volume of 25%, and zero grids represent the remaining hot water volume of 0. This enables the user to intuitively see the remaining hot water volume of the current water heater and understand the actual hot water usage situation.

[0076] The following will be combined with Figure 2 to describe the calculation method of the present invention.

[0077] As a specific example, the method for calculating the remaining hot water volume of the water heater of the present invention may include the following steps:

[0078] S101, Obtain the outdoor ambient temperature and at least two actual water temperatures of the water heater, and determine the set water temperature of the water heater.

[0079] S102, Determine multiple calculation intervals according to the water heater parameters, where each calculation interval corresponds to a temperature range.

[0080] S103, Determine the target calculation interval according to the corresponding relationship between the outdoor ambient temperature and the multiple calculation intervals.

[0081] S104, Determine the corresponding temperature-reaching calculation logic according to the target calculation interval, where each calculation interval corresponds to a kind of temperature-reaching calculation logic.

[0082] S105, Determine multiple temperature-reaching parameters according to the matching relationship between the set water temperature and the temperature-reaching calculation logic.

[0083] S106, Calculate the remaining hot water volume of the water heater according to the judgment relationship between at least two actual water temperatures and the multiple temperature-reaching parameters.

[0084] In summary, according to the method for calculating the remaining hot water volume of a water heater according to an embodiment of the present invention, first, the outdoor ambient temperature and at least two actual water temperatures of the water heater are obtained, and the set water temperature of the water heater is determined. Then, a target calculation interval is determined according to the water heater parameters and the outdoor ambient temperature. Next, a plurality of temperature reaching parameters are determined according to the set water temperature and the target calculation interval. Finally, the remaining hot water volume of the water heater is calculated according to the judgment relationship between at least two actual water temperatures and the plurality of temperature reaching parameters. Thus, this method can quickly and accurately calculate the remaining hot water volume in the water heater tank, enabling users to understand the actual hot water usage situation.

[0085] Corresponding to the above embodiment, the present invention also proposes a device for calculating the remaining hot water volume of a water heater.

[0086] As Figure 3 shown, the device 100 for calculating the remaining hot water volume of a water heater according to an embodiment of the present invention includes: an acquisition module 110, a first determination module 120, a second determination module 130, and a calculation module 140.

[0087] Among them, the acquisition module 110 is used to acquire the outdoor ambient temperature and at least two actual water temperatures of the water heater. The first determination module 120 is used to determine the set water temperature of the water heater. The second determination module 130 is used to determine a target calculation interval according to the water heater parameters and the outdoor ambient temperature, and determine a plurality of temperature reaching parameters according to the set water temperature and the target calculation interval. The calculation module 140 is used to calculate the remaining hot water volume of the water heater according to the judgment relationship between at least two actual water temperatures and the plurality of temperature reaching parameters.

[0088] According to an embodiment of the present invention, the second determination module 130 determines the target calculation interval according to the water heater parameters and the outdoor ambient temperature, specifically: determining a plurality of calculation intervals according to the water heater parameters, where each calculation interval corresponds to a temperature range; determining the target calculation interval according to the correspondence between the outdoor ambient temperature and the plurality of calculation intervals.

[0089] According to an embodiment of the present invention, the second determination module 130 determines a plurality of temperature reaching parameters according to the set water temperature and the target calculation interval, specifically: determining the corresponding temperature reaching calculation logic according to the target calculation interval, where each calculation interval corresponds to a temperature reaching calculation logic; determining a plurality of temperature reaching parameters according to the matching relationship between the set water temperature and the temperature reaching calculation logic.

[0090] According to an embodiment of the present invention, the plurality of temperature reaching parameters include at least 6.

[0091] According to an embodiment of the present invention, the temperature reaching calculation logic includes a plurality of temperature judgment conditions, and the matching relationship is the logical relationship between the set water temperature and each temperature judgment condition.

[0092] According to an embodiment of the present invention, at least some of the multiple temperature reaching parameters are associated with each other.

[0093] According to an embodiment of the present invention, the hot water machine parameters include the heat pump type of the hot water machine.

[0094] According to an embodiment of the present invention, when the heat pump type is a variable frequency heat pump, the multiple temperature reaching parameters include the first to ninth temperature reaching parameters. Among them, the calculation module 140 calculates the remaining hot water volume of the hot water machine according to the judgment relationship between at least two actual water temperatures and the multiple temperature reaching parameters, and specifically is used for: when the first actual water temperature among at least two actual water temperatures is greater than or equal to the first temperature reaching parameter and the second actual water temperature among at least two actual water temperatures is greater than or equal to the fifth temperature reaching parameter, determining that the remaining hot water volume is the first hot water volume; when the first actual water temperature is greater than or equal to the second temperature reaching parameter and less than the first temperature reaching parameter and the second actual water temperature is greater than or equal to the sixth temperature reaching parameter, determining that the remaining hot water volume is the first hot water volume; when the first actual water temperature is greater than or equal to the first temperature reaching parameter and the second actual water temperature is less than the fifth temperature reaching parameter, determining that the remaining hot water volume is the second hot water volume, where the second hot water volume is less than the first hot water volume; when the first actual water temperature is greater than or equal to the second temperature reaching parameter and less than the first temperature reaching parameter and the second actual water temperature is less than the sixth temperature reaching parameter, determining that the remaining hot water volume is the second hot water volume; when the first actual water temperature is greater than or equal to the third temperature reaching parameter and less than the second temperature reaching parameter and the second actual water temperature is greater than or equal to the seventh temperature reaching parameter, determining that the remaining hot water volume is the second hot water volume; when the first actual water temperature is greater than or equal to the third temperature reaching parameter and less than the second temperature reaching parameter and the second actual water temperature is less than the seventh temperature reaching parameter, determining that the remaining hot water volume is the third hot water volume, where the third hot water volume is less than the second hot water volume; when the first actual water temperature is greater than or equal to the fourth temperature reaching parameter and less than the third temperature reaching parameter and the second actual water temperature is greater than or equal to the eighth temperature reaching parameter, determining that the remaining hot water volume is the third hot water volume; when the first actual water temperature is greater than or equal to the fourth temperature reaching parameter and less than the third temperature reaching parameter and the second actual water temperature is less than the eighth temperature reaching parameter, determining that the remaining hot water volume is the fourth hot water volume, where the fourth hot water volume is less than the third hot water volume; when the first actual water temperature is greater than or equal to the ninth temperature reaching parameter and less than the fourth temperature reaching parameter, determining that the remaining hot water volume is the fifth hot water volume, where the fifth hot water volume is less than the fourth hot water volume; when the first actual water temperature is less than the ninth temperature reaching parameter, determining that the remaining hot water volume is the sixth hot water volume, where the sixth hot water volume is less than the fifth hot water volume.

[0095] According to an embodiment of the present invention, in the case where the heat pump type is a fixed-frequency heat pump, the multiple temperature-reaching parameters include the first to eighth temperature-reaching parameters. Among them, the calculation module 140 calculates the remaining hot water volume of the water heater according to the judgment relationship between at least two actual water temperatures and the multiple temperature-reaching parameters. Specifically, it is used for: when the first actual water temperature among at least two actual water temperatures is greater than or equal to the first temperature-reaching parameter and the second actual water temperature among at least two actual water temperatures is greater than or equal to the fifth temperature-reaching parameter, determining that the remaining hot water volume is the first hot water volume; when the first actual water temperature is greater than or equal to the second temperature-reaching parameter and less than the first temperature-reaching parameter, and the second actual water temperature is greater than or equal to the sixth temperature-reaching parameter, determining that the remaining hot water volume is the first hot water volume; when the first actual water temperature is greater than or equal to the first temperature-reaching parameter and the second actual water temperature is less than the fifth temperature-reaching parameter, determining that the remaining hot water volume is the second hot water volume, where the second hot water volume is less than the first hot water volume; when the first actual water temperature is greater than or equal to the second temperature-reaching parameter and less than the first temperature-reaching parameter, and the second actual water temperature is less than the sixth temperature-reaching parameter, determining that the remaining hot water volume is the second hot water volume; when the first actual water temperature is greater than or equal to the third temperature-reaching parameter and less than the second temperature-reaching parameter, and the second actual water temperature is greater than or equal to the seventh temperature-reaching parameter, determining that the remaining hot water volume is the second hot water volume; when the first actual water temperature is greater than or equal to the third temperature-reaching parameter and less than the second temperature-reaching parameter, and the second actual water temperature is less than the seventh temperature-reaching parameter, determining that the remaining hot water volume is the third hot water volume, where the third hot water volume is less than the second hot water volume; when the first actual water temperature is greater than or equal to the fourth temperature-reaching parameter and less than the third temperature-reaching parameter, and the second actual water temperature is greater than or equal to the eighth temperature-reaching parameter, determining that the remaining hot water volume is the third hot water volume; when the first actual water temperature is greater than or equal to the fourth temperature-reaching parameter and less than the third temperature-reaching parameter, and the second actual water temperature is less than the eighth temperature-reaching parameter, determining that the remaining hot water volume is the fourth hot water volume, where the fourth hot water volume is less than the third hot water volume; when the first actual water temperature is less than the fourth temperature-reaching parameter, determining that the remaining hot water volume is the fifth hot water volume, where the fifth hot water volume is less than the fourth hot water volume.

[0096] It should be noted that for the details not disclosed in the remaining hot water volume calculation device of the water heater in the embodiment of the present invention, please refer to the details disclosed in the remaining hot water volume calculation method of the water heater in the embodiment of the present invention, and will not be elaborated here specifically.

[0097] The remaining hot water quantity calculating device of a hot water machine according to an embodiment of the present invention, an obtaining module is configured to obtain the outdoor ambient temperature and at least two actual water temperatures of the hot water machine, a first determining module is configured to determine the set water temperature of the hot water machine, a second determining module is configured to determine a target calculation interval according to the hot water machine parameters and the outdoor ambient temperature, and determine a plurality of temperature reaching parameters according to the set water temperature and the target calculation interval, and a calculating module is configured to calculate the remaining hot water quantity of the hot water machine according to the judgment relationship between at least two actual water temperatures and the plurality of temperature reaching parameters. Thus, the device can quickly and accurately calculate the remaining hot water quantity in the hot water tank of the hot water machine, enabling the user to understand the actual hot water usage situation.

[0098] Corresponding to the above embodiment, the present invention also provides a computer-readable storage medium.

[0099] The computer-readable storage medium according to an embodiment of the present invention stores a computer program thereon, and when the computer program is executed by a processor, the above-mentioned method for calculating the remaining hot water quantity of the hot water machine is implemented.

[0100] According to the computer-readable storage medium of the embodiment of the present invention, by executing the above-mentioned method for calculating the remaining hot water quantity of the hot water machine, the remaining hot water quantity in the hot water tank of the hot water machine can be quickly and accurately calculated, enabling the user to understand the actual hot water usage situation.

[0101] Corresponding to the above embodiment, the present invention also provides a hot water machine.

[0102] As Figure 4 shown, the hot water machine 200 according to an embodiment of the present invention may include: a memory 210, a processor 220, and a computer program stored on the memory 210 and executable on the processor 220. When the processor 220 executes the computer program, the above-mentioned method for calculating the remaining hot water quantity of the hot water machine is implemented.

[0103] According to the hot water machine of the embodiment of the present invention, by executing the above-mentioned method for calculating the remaining hot water quantity of the hot water machine, the remaining hot water quantity in the hot water tank of the hot water machine can be quickly and accurately calculated, enabling the user to understand the actual hot water usage situation.

[0104] Note that the logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a definite sequence list of executable instructions for implementing logical functions, and can be specifically implemented in any computer-readable medium for use by an instruction execution system, apparatus, or device (such as a computer-based system, a system including a processor, or other systems that can fetch and execute instructions from the instruction execution system, apparatus, or device), or in combination with these instruction execution systems, apparatuses, or devices. For the purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transport a program for use by or in combination with an instruction execution system, apparatus, or device. More specific examples (non-exhaustive list) of computer-readable media include the following: an electrical connection portion having one or more wirings (electronic device), a portable computer diskette case (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium can even be paper or other suitable media on which the program can be printed, because the program can be obtained electronically, for example, by optically scanning the paper or other media, followed by editing, interpretation, or otherwise processing as appropriate, and then storing it in a computer memory.

[0105] It should be understood that various parts of the present invention can be implemented by hardware, software, firmware, or a combination thereof. In the above-described embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, any one or a combination of the following techniques well known in the art can be used: discrete logic circuits having logic gate circuits for implementing logical functions on data signals, application-specific integrated circuits having appropriate combinational logic gate circuits, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), and the like.

[0106] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0107] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0108] In the present invention, unless otherwise clearly specified and defined, terms such as "installed", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0109] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A method for calculating the remaining hot water volume of a water heater, characterized in that, the method includes: obtaining the outdoor ambient temperature and at least two actual water temperatures of the water heater, and determining the set water temperature of the water heater; determining a target calculation interval according to the water heater parameters and the outdoor ambient temperature; determining a plurality of temperature reaching parameters according to the set water temperature and the target calculation interval; calculating the remaining hot water volume of the water heater according to the judgment relationship between the at least two actual water temperatures and the plurality of temperature reaching parameters.

2. The method according to claim 1, characterized in that, the determining a target calculation interval according to the water heater parameters and the outdoor ambient temperature includes: determining a plurality of calculation intervals according to the water heater parameters, wherein each of the calculation intervals corresponds to a temperature range; determining the target calculation interval according to the corresponding relationship between the outdoor ambient temperature and the plurality of calculation intervals.

3. The method according to claim 2, characterized in that, the determining a plurality of temperature reaching parameters according to the set water temperature and the target calculation interval includes: determining a corresponding temperature reaching calculation logic according to the target calculation interval, wherein each of the calculation intervals corresponds to a temperature reaching calculation logic; determining the plurality of temperature reaching parameters according to the matching relationship between the set water temperature and the temperature reaching calculation logic.

4. The method according to claim 3, characterized in that, the plurality of temperature reaching parameters includes at least 6.

5. The method according to claim 3, characterized in that, the temperature reaching calculation logic includes a plurality of temperature judgment conditions, and the matching relationship is the logical relationship between the set water temperature and each of the temperature judgment conditions.

6. The method according to claim 5, characterized in that, at least some of the plurality of temperature reaching parameters are associated with each other.

7. The method according to claim 2, characterized in that, the water heater parameters include the heat pump type of the water heater.

8. The method according to claim 7, characterized in that, when the heat pump type is a variable frequency heat pump, the plurality of temperature reaching parameters include the first to the ninth temperature reaching parameters, wherein calculating the remaining hot water volume of the water heater according to the judgment relationship between the at least two actual water temperatures and the plurality of temperature reaching parameters includes: when the first actual water temperature among the at least two actual water temperatures is greater than or equal to the first temperature reaching parameter and the second actual water temperature among the at least two actual water temperatures is greater than or equal to the fifth temperature reaching parameter, determining that the remaining hot water volume is the first hot water volume; when the first actual water temperature is greater than or equal to the second temperature reaching parameter and less than the first temperature reaching parameter, and the second actual water temperature is greater than or equal to the sixth temperature reaching parameter, determining that the remaining hot water volume is the first hot water volume; when the first actual water temperature is greater than or equal to the first temperature reaching parameter and the second actual water temperature is less than the fifth temperature reaching parameter, determining that the remaining hot water volume is the second hot water volume, wherein the second hot water volume is less than the first hot water volume; When the first actual water temperature is greater than or equal to the second temperature - reaching parameter and less than the first temperature - reaching parameter, and the second actual water temperature is less than the sixth temperature - reaching parameter, determine that the remaining hot water volume is the second hot water volume; When the first actual water temperature is greater than or equal to the third temperature - reaching parameter and less than the second temperature - reaching parameter, and the second actual water temperature is greater than or equal to the seventh temperature - reaching parameter, determine that the remaining hot water volume is the second hot water volume; When the first actual water temperature is greater than or equal to the third temperature - reaching parameter and less than the second temperature - reaching parameter, and the second actual water temperature is less than the seventh temperature - reaching parameter, determine that the remaining hot water volume is the third hot water volume, where the third hot water volume is less than the second hot water volume; When the first actual water temperature is greater than or equal to the fourth temperature - reaching parameter and less than the third temperature - reaching parameter, and the second actual water temperature is greater than or equal to the eighth temperature - reaching parameter, determine that the remaining hot water volume is the third hot water volume; When the first actual water temperature is greater than or equal to the fourth temperature - reaching parameter and less than the third temperature - reaching parameter, and the second actual water temperature is less than the eighth temperature - reaching parameter, determine that the remaining hot water volume is the fourth hot water volume, where the fourth hot water volume is less than the third hot water volume; When the first actual water temperature is greater than or equal to the ninth temperature - reaching parameter and less than the fourth temperature - reaching parameter, determine that the remaining hot water volume is the fifth hot water volume, where the fifth hot water volume is less than the fourth hot water volume; When the first actual water temperature is less than the ninth temperature - reaching parameter, determine that the remaining hot water volume is the sixth hot water volume, where the sixth hot water volume is less than the fifth hot water volume.

9. The method according to claim 7, characterized in that, when the heat pump type is a fixed - frequency heat pump, the multiple temperature - reaching parameters include the first to the eighth temperature - reaching parameters. Wherein, calculating the remaining hot water volume of the water heater according to the judgment relationship between the at least two actual water temperatures and the multiple temperature - reaching parameters includes: When the first actual water temperature among the at least two actual water temperatures is greater than or equal to the first temperature - reaching parameter, and the second actual water temperature among the at least two actual water temperatures is greater than or equal to the fifth temperature - reaching parameter, determine that the remaining hot water volume is the first hot water volume; When the first actual water temperature is greater than or equal to the second temperature - reaching parameter and less than the first temperature - reaching parameter, and the second actual water temperature is greater than or equal to the sixth temperature - reaching parameter, determine that the remaining hot water volume is the first hot water volume; When the first actual water temperature is greater than or equal to the first temperature - reaching parameter, and the second actual water temperature is less than the fifth temperature - reaching parameter, determine that the remaining hot water volume is the second hot water volume, where the second hot water volume is less than the first hot water volume; When the first actual water temperature is greater than or equal to the second temperature - reaching parameter and less than the first temperature - reaching parameter, and the second actual water temperature is less than the sixth temperature - reaching parameter, determine that the remaining hot water volume is the second hot water volume; When the first actual water temperature is greater than or equal to the third temperature - reaching parameter and less than the second temperature - reaching parameter, and the second actual water temperature is greater than or equal to the seventh temperature - reaching parameter, determine that the remaining hot water volume is the second hot water volume; When the first actual water temperature is greater than or equal to the third temperature - reaching parameter and less than the second temperature - reaching parameter, and the second actual water temperature is less than the seventh temperature - reaching parameter, determine that the remaining hot water volume is the third hot water volume, where the third hot water volume is less than the second hot water volume; When the first actual water temperature is greater than or equal to the fourth temperature - reaching parameter and less than the third temperature - reaching parameter, and the second actual water temperature is greater than or equal to the eighth temperature - reaching parameter, determine that the remaining hot water volume is the third hot water volume; When the first actual water temperature is greater than or equal to the fourth temperature - reaching parameter and less than the third temperature - reaching parameter, and the second actual water temperature is less than the eighth temperature - reaching parameter, determine that the remaining hot water volume is the fourth hot water volume, where the fourth hot water volume is less than the third hot water volume; When the first actual water temperature is less than the fourth temperature - reaching parameter, determine that the remaining hot water volume is the fifth hot water volume, where the fifth hot water volume is less than the fourth hot water volume.

10. A device for calculating the remaining hot water volume of a water heater, Characterized in that, Comprising: An acquisition module, configured to acquire the outdoor ambient temperature and at least two actual water temperatures of the water heater; A first determination module, configured to determine the set water temperature of the water heater; A second determination module, configured to determine a target calculation interval according to the water heater parameters and the outdoor ambient temperature, and determine multiple temperature - reaching parameters according to the set water temperature and the target calculation interval; A calculation module, configured to calculate the remaining hot water volume of the water heater according to the judgment relationship between the at least two actual water temperatures and the multiple temperature - reaching parameters.

11. A computer - readable storage medium, Characterized in that, A computer program is stored thereon, and when the computer program is executed by a processor, it implements the method for calculating the remaining hot water volume of the water heater according to any one of claims 1 - 9.

12. A water heater, Characterized in that, Comprising a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the computer program, it implements the method for calculating the remaining hot water volume of the water heater according to any one of claims 1 - 9.

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