Water control method and device for heat pump and heat pump all-in-one machine

Abstract

The application relates to a water control method and device for a heat pump and a heat pump all-in-one machine, wherein the method obtains sensing temperatures of different water tank liquid levels detected by a temperature sensing module; obtains an inlet water temperature according to the sensing temperatures; and processes the inlet water temperature and the sensing temperatures based on a preset available water amount model to obtain a target available water amount, thereby realizing accurate calculation of the available water amount of the heat pump system. The application detects the sensing temperatures of different water tank liquid levels in the water tank through the temperature sensing module, determines the inlet water temperature of the water tank according to the sensing temperatures, and then processes the inlet water temperature and the sensing temperatures through the preset available water amount model to obtain an accurate target available water amount, thereby improving the accuracy of the obtained available water amount and improving the intelligent degree of the heat pump system.

Description

Technical Field

[0001] This application relates to the field of heat pump control technology, and in particular to heat pump water control methods, devices, and integrated heat pump units. Background Technology

[0002] With the development of water technology, heat pump water heaters are being used more and more widely. Heat pump water heaters can provide both hot and cold water, meeting the different temperature needs of different people and improving the convenience of water use.

[0003] In the process of implementation, the inventors discovered that traditional technologies have at least the following problems: existing heat pump water heaters have relatively simple functions, low accuracy in obtaining usable water volume, and low level of intelligence. Summary of the Invention

[0004] Therefore, it is necessary to address the problems of low accuracy and low intelligence in the use of available water in existing heat pump water heaters by providing a heat pump water control method, device, and integrated heat pump unit that can improve the accuracy of obtaining available water and have a high degree of intelligence.

[0005] To achieve the above objectives, embodiments of the present invention provide a heat pump water control method, comprising the following steps:

[0006] The temperature is obtained from the temperature sensing module at different water tank liquid levels.

[0007] The inlet water temperature is obtained based on the temperature of each sensor.

[0008] Based on a preset available water volume model, the inlet water temperature and the temperature of each sensor are processed to obtain the target available water volume.

[0009] In one embodiment, the temperature sensing module includes a first temperature sensor, a second temperature sensor, and a third temperature sensor; the first temperature sensor is used to detect a first sensing temperature corresponding to the liquid level of the first water tank, the second temperature sensor is used to detect a second sensing temperature corresponding to the liquid level of the second water tank, and the third temperature sensor is used to detect a third sensing temperature corresponding to the liquid level of the third water tank; the liquid level of the third water tank is greater than the liquid level of the second water tank, and the liquid level of the second water tank is greater than the liquid level of the first water tank.

[0010] The steps for obtaining the inlet water temperature based on the temperature of each sensor include:

[0011] The inlet water temperature is obtained based on the first sensor temperature, the second sensor temperature, and the third sensor temperature.

[0012] The steps for obtaining the target available water volume by processing the inlet water temperature and the temperatures of each sensor based on a preset available water volume model include:

[0013] Based on a preset available water volume model, the inlet water temperature, the first sensor temperature, the second sensor temperature, and the third sensor temperature are processed to obtain the target available water volume.

[0014] In one embodiment, the step of processing the inlet water temperature, the first sensing temperature, the second sensing temperature, and the third sensing temperature based on a preset available water volume model to obtain the target available water volume includes:

[0015] When the inlet water temperature is greater than or equal to the first temperature threshold, the first sensing temperature, the second sensing temperature and the third sensing temperature are input into the first usable water quantum model for processing to obtain the target usable water volume.

[0016] When the inlet water temperature is less than the first temperature threshold and greater than or equal to the second temperature threshold, the first sensing temperature, the second sensing temperature and the third sensing temperature are input into the second usable water quantum model for processing to obtain the target usable water volume.

[0017] When the inlet water temperature is lower than the second temperature threshold, the first, second, and third sensor temperatures are input into the third usable water quantum model for processing to obtain the target usable water volume.

[0018] In one embodiment, the first available water quantum model is:

[0019] V1 = A1*X*X + B1*X - C1

[0020] Where V1 is the corresponding target available water volume, X = (T1 + T2 + T3) / 3, T1 is the first sensing temperature, T2 is the second sensing temperature, T3 is the third sensing temperature, and A1, B1 and C1 are constants;

[0021] The second usable water quantum model is:

[0022] V2=A2*X*X+B2*X-C2

[0023] Where V2 is the corresponding target available water volume, and A2, B2 and C2 are constants;

[0024] The third usable quantum model for water is:

[0025] V3 = A3*X*X + B3*X + C3

[0026] Where V3 is the corresponding target available water volume, and A3, B3 and C3 are constants.

[0027] In one embodiment, the step of obtaining the inlet water temperature based on each sensor temperature includes:

[0028] The inlet water temperature is determined based on the operating time of the heat pump system and the minimum temperature value among the various sensors.

[0029] In one embodiment, the step of processing the inlet water temperature, the first sensing temperature, the second sensing temperature, and the third sensing temperature based on a preset available water volume model to obtain the target available water volume includes:

[0030] When the temperature difference between any two temperature values ​​among the first sensing temperature, the second sensing temperature, and the third sensing temperature is less than or equal to the third temperature threshold, the temperature value of the third sensing temperature is determined.

[0031] If the third sensor temperature is greater than or equal to the fourth temperature threshold, the inlet water temperature, the first sensor temperature, the second sensor temperature and the third sensor temperature are processed based on the preset available water volume model to obtain the target available water volume.

[0032] In one embodiment, after processing the inlet water temperature and the temperatures of each sensor based on a preset available water volume model to obtain the target available water volume, the following steps are included:

[0033] Obtain the target available water volume at different calculation time points;

[0034] Based on the available water volume for each target, the user's actual water consumption at different time periods is obtained;

[0035] The target available water volume and the actual water consumption are input into a preset machine learning model for processing to obtain the heat pump start-up time of the heat pump system.

[0036] Control the start and stop of the heat pump system based on the heat pump start-up time.

[0037] In one embodiment, after the step of obtaining the user's actual water consumption in different time periods based on each target available water volume, the method further includes:

[0038] The difference between the target available water volume and the actual water consumption in the current time period is calculated to obtain the water volume difference.

[0039] When the water volume difference exceeds the water volume threshold, the heat pump of the heat pump system is shut down.

[0040] On the other hand, embodiments of the present invention also provide a heat pump water control device, comprising:

[0041] The temperature sensing acquisition unit is used to acquire the sensing temperature of different water tank liquid levels detected by the temperature sensing module.

[0042] The inlet water temperature calculation unit is used to obtain the inlet water temperature based on the temperature of each sensor.

[0043] The available water volume calculation unit is used to process the inlet water temperature and the temperature of each sensor based on a preset available water volume model to obtain the target available water volume.

[0044] On the other hand, embodiments of the present invention also provide an integrated heat pump unit, including a temperature sensing module, a water tank, and a controller; the temperature sensing module is disposed on the water tank, and the controller is connected to the temperature sensing module;

[0045] The controller is used to perform the steps of the heat pump water control method described in any of the above-mentioned methods.

[0046] One of the above technical solutions has the following advantages and beneficial effects:

[0047] In the various embodiments of the above-described heat pump water control method, the sensing temperatures of different water tank levels detected by the temperature sensing module are obtained; the inlet water temperature is obtained based on each sensing temperature; and the inlet water temperature and each sensing temperature are processed based on a preset available water volume model to obtain the target available water volume, thereby achieving accurate calculation of the available water volume of the heat pump system. This application detects the sensing temperatures of different water tank levels in the water tank using a temperature sensing module, determines the inlet water temperature based on each sensing temperature, and then processes the inlet water temperature and each sensing temperature using a preset available water volume model to obtain an accurate target available water volume, thus improving the accuracy of obtaining available water volume and enhancing the intelligence level of the heat pump system. Attached Figure Description

[0048] Figure 1 This is a schematic diagram illustrating the application environment of a heat pump water control method in one embodiment.

[0049] Figure 2 This is a schematic diagram of the first process of a heat pump water control method in one embodiment;

[0050] Figure 3 This is a schematic diagram of the first process of obtaining the target available water volume in one embodiment;

[0051] Figure 4 This is a schematic diagram of the second process of obtaining the target available water volume in one embodiment;

[0052] Figure 5 This is a flowchart illustrating the heat pump start-stop control steps in one embodiment;

[0053] Figure 6 This is a schematic diagram of the heat pump water control device in one embodiment;

[0054] Figure 7 This is a schematic diagram of the structure of an integrated heat pump unit in one embodiment. Detailed Implementation

[0055] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0056] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0057] In addition, the term "multiple" should mean two or more.

[0058] The heat pump water control method provided in this application can be applied to, for example... Figure 1 The application environment shown is illustrated. The heat pump system includes a controller 102, a water tank 104, and a temperature sensing module 106; the controller 102 is connected to the temperature sensing module 106. The water tank 104 stores water, and the water in the water tank 104 is used to supply water to users. The temperature sensing module 106 can be used to detect the sensing temperature of different water tank liquid levels in the water tank 104. The controller 102 can be used to acquire the sensing temperature of different water tank liquid levels detected by the temperature sensing module 106; obtain the inlet water temperature based on each sensing temperature; and process the inlet water temperature and each sensing temperature based on a preset available water volume model to obtain the target available water volume. The heat pump system refers to an integrated heat pump unit, such as a heat pump water heater with temperature regulation functions or a water heater combining heat pump and electric heating.

[0059] In one embodiment, such as Figure 2 As shown, a heat pump water control method is provided, which is applied to... Figure 1 Taking controller 102 as an example, the following steps are included:

[0060] Step S210: Obtain the sensing temperature of different water tank liquid levels detected by the temperature sensing module.

[0061] The temperature sensing module 106 can be installed on the water tank 104. The temperature sensing module 106 is used to detect the sensing temperature of at least two different water tank levels within the water tank 104. For example, the temperature sensing module 106 can be used to detect the sensing temperature of three different water tank levels within the water tank 104. The water tank 104 is provided with an inlet and an outlet. The inlet of the water tank 104 is used to input water before temperature adjustment; the outlet of the water tank 104 is used to output water after temperature adjustment. Exemplarily, the heat pump system may also include a temperature regulation module, for example, the temperature regulation module may include a heat pump or a combination of a heat pump and an electric heating module. The temperature regulation module can be used to regulate the temperature of the water in the water tank 104.

[0062] The temperature sensing module 106 can detect the sensing temperature of different water tank levels based on a preset cycle, and the controller 102 can obtain the sensing temperature of different water tank levels based on the preset cycle. For example, the temperature sensing module 106 can detect the sensing temperature of different water tank levels every 5 seconds.

[0063] Step S220: Obtain the inlet water temperature based on the temperature of each sensor.

[0064] The inlet water temperature can be obtained by processing the sensor temperatures obtained in the corresponding detection cycle. For example, the minimum value among the sensor temperatures in the corresponding detection cycle can be determined as the corresponding inlet water temperature.

[0065] Step S230: Based on the preset available water volume model, process the inlet water temperature and the temperature of each sensor to obtain the target available water volume.

[0066] The preset available water volume model can be established using historical test data. By inputting the inlet water temperature and the temperatures of each sensor into the preset available water volume model for processing, the target available water volume of the water tank 104 in the heat pump system can be accurately obtained.

[0067] For example, the calculated target available water volume can be displayed in real time. For instance, to facilitate display and user viewing, the target available water volume can be rounded down, and then the rounded target available water volume can be displayed in real time. In another example, the target available water volume can also be rounded down to an integer multiple of 5, such as 205, 165, or 230.

[0068] For example, the target available water volume can also be displayed graphically. For instance, taking a 200L water tank 104 as an example, with a baseline value of 210, when the ratio of the target available water volume to the baseline value is greater than or equal to 0.9, 5 bars (i.e., full bars) are displayed graphically; when the ratio of the target available water volume to the baseline value is between 0.7 and 0.9, 4 bars are displayed graphically; when the ratio of the target available water volume to the baseline value is between 0.5 and 0.6, 3 bars are displayed graphically; when the ratio of the target available water volume to the baseline value is between 0.3 and 0.5, 2 bars are displayed graphically; and when the ratio of the target available water volume to the baseline value is between 0.1 and 0.3, 1 bar is displayed graphically.

[0069] In the above embodiments, the sensing temperature of different water tank liquid levels detected by the temperature sensing module 106 is obtained; the inlet water temperature is obtained based on each sensing temperature; and the inlet water temperature and each sensing temperature are processed based on a preset available water volume model to obtain the target available water volume, thereby achieving accurate calculation of the available water volume of the heat pump system. This application detects the sensing temperature of different water tank liquid levels in the water tank 104 by the temperature sensing module 106, determines the inlet water temperature of the water tank 104 based on each sensing temperature, and then processes the inlet water temperature and each sensing temperature using a preset available water volume model to obtain an accurate target available water volume, thus improving the accuracy of obtaining available water volume and enhancing the intelligence level of the heat pump system.

[0070] In one embodiment, such as Figure 7 As shown, the temperature sensing module 106 includes a first temperature sensor 1062, a second temperature sensor 1064, and a third temperature sensor 1066; the first temperature sensor 1062 is used to detect a first sensing temperature corresponding to the liquid level of the first water tank, the second temperature sensor 1064 is used to detect a second sensing temperature corresponding to the liquid level of the second water tank, and the third temperature sensor 1066 is used to detect a third sensing temperature corresponding to the liquid level of the third water tank; the liquid level of the third water tank is greater than the liquid level of the second water tank, and the liquid level of the second water tank is greater than the liquid level of the first water tank.

[0071] The first temperature sensor 1062 can be installed on the water tank 104, for example, at 25% volume of the water tank 104, thereby detecting the first temperature at the 25% volume position. The second temperature sensor 1064 can be installed at 50% volume of the water tank 104, thereby detecting the second temperature at the 50% volume position. The third temperature sensor 1066 can be installed at 75% volume of the water tank 104, thereby detecting the third temperature at the 75% volume position. The first water tank level can be the water level at the 25% volume position; the second water tank level can be the water level at the 50% volume position; and the third water tank level can be the water level at the 75% volume position.

[0072] In one example, the step of obtaining the inlet water temperature based on the temperature of each sensor includes: obtaining the inlet water temperature based on the first sensor temperature, the second sensor temperature, and the third sensor temperature.

[0073] The first, second, and third sensor temperatures obtained in the corresponding detection cycle can be processed to obtain the inlet water temperature. For example, the minimum value among the first, second, and third sensor temperatures in the corresponding detection cycle can be selected, and this minimum value can be determined as the corresponding inlet water temperature.

[0074] In one example, the steps of processing the inlet water temperature and the temperatures of each sensor based on a preset available water volume model to obtain the target available water volume include: processing the inlet water temperature, the first sensor temperature, the second sensor temperature, and the third sensor temperature based on the preset available water volume model to obtain the target available water volume.

[0075] By inputting the inlet water temperature, the first sensor temperature, the second sensor temperature, and the third sensor temperature into a preset available water volume model for processing, the target available water volume of the water tank 104 in the heat pump system can be accurately obtained, thereby improving the accuracy of obtaining available water volume and enhancing the intelligence level of the heat pump system.

[0076] In one embodiment, such as Figure 3 As shown, the steps to obtain the target usable water volume by processing the inlet water temperature, the first sensor temperature, the second sensor temperature, and the third sensor temperature based on a preset usable water volume model include:

[0077] Step S310: When the inlet water temperature is greater than or equal to the first temperature threshold, the first sensing temperature, the second sensing temperature and the third sensing temperature are input into the first usable water quantum model for processing to obtain the target usable water volume.

[0078] The first temperature threshold can be determined based on historical experimental data. For example, the first temperature threshold can be set to 25℃. The first usable water quantum model can be established through historical experimental data. For example, the first usable water quantum model is: V1=A1*X*X+B1*X-C1. Where V is the corresponding target usable water volume, X=(T1+T2+T3) / 3, T1 is the first sensing temperature, T2 is the second sensing temperature, T3 is the third sensing temperature, and A1, B1, and C1 are constants.

[0079] The acquired inlet water temperature undergoes threshold comparison processing. Based on the comparison result, when the inlet water temperature is greater than or equal to a first temperature threshold, the first, second, and third sensor temperatures are input into a first usable water quantum model for processing, thereby outputting the target usable water volume. For example, A1 is 0.0485, B1 is 7.1449, and C1 is 210.26, meaning the first usable water quantum model is V = 0.0485*X*X + 7.1449*X - 210.26. By averaging the first, second, and third sensor temperatures, the average temperature corresponding to X is obtained. This average temperature is then input into the first usable water quantum model for processing, thus yielding the target usable water volume.

[0080] Step S320: When the inlet water temperature is less than the first temperature threshold and greater than or equal to the second temperature threshold, the first sensing temperature, the second sensing temperature and the third sensing temperature are input into the second usable water quantum model for processing to obtain the target usable water volume.

[0081] The second temperature threshold can be determined based on historical experimental data. For example, the second temperature threshold can be set to 17℃. The second usable water quantum model can be established through historical experimental data. For example, the second usable water quantum model is: V2 = A2*X*X + B2*X - C2. Where V2 is the corresponding target usable water volume, X = (T1 + T2 + T3) / 3, T1 is the first sensing temperature, T2 is the second sensing temperature, T3 is the third sensing temperature, and A2, B2, and C2 are constants.

[0082] The acquired inlet water temperature undergoes threshold comparison processing. Based on the comparison results, when the inlet water temperature is less than a first temperature threshold but greater than or equal to a second temperature threshold, the first, second, and third sensor temperatures are input into a second usable water quantum model for processing, thereby outputting the target usable water volume. For example, A2 is 0.0814, B2 is 0.4556, and C2 is 1.8453, meaning the second usable water quantum model is V2 = 0.0814*X*X + 0.4556*X - 1.8453. By averaging the first, second, and third sensor temperatures, the average temperature corresponding to X is obtained. This average temperature is then input into the second usable water quantum model for processing, thus yielding the target usable water volume corresponding to the inlet water temperature.

[0083] Step S330: When the inlet water temperature is less than the second temperature threshold, the first sensing temperature, the second sensing temperature and the third sensing temperature are input into the third usable water quantum model for processing to obtain the target usable water volume.

[0084] The third available water quantum model can be established using historical experimental data. For example, the third available water quantum model is: V3 = A3*X*X + B3*X + C3. Here, V3 is the corresponding target available water volume, X = (T1 + T2 + T3) / 3, T1 is the first sensing temperature, T2 is the second sensing temperature, T3 is the third sensing temperature, and A3, B3, and C3 are constants.

[0085] The acquired inlet water temperature undergoes threshold comparison processing. Based on the comparison result, when the inlet water temperature is lower than a second temperature threshold, the first, second, and third sensor temperatures are input into a third usable water quantum model for processing, thereby outputting the target usable water volume. For example, A3 is 0.0501, B3 is 1.484, and C3 is 4.1186, meaning the third usable water quantum model is V3 = 0.0501*X*X + 1.484*X + 4.1186. By averaging the first, second, and third sensor temperatures, the average temperature corresponding to X is obtained. This average temperature is then input into the third usable water quantum model for processing, thus yielding the target usable water volume corresponding to the inlet water temperature.

[0086] In the above embodiments, a corresponding available water quantum model is selected based on the inlet water temperature. Then, based on the selected available water quantum model, the first sensing temperature, the second sensing temperature, and the third sensing temperature of different water tank liquid levels are processed to obtain an accurate amount of available water, thereby improving the accuracy of obtaining the amount of available water and enhancing the intelligence of the heat pump system.

[0087] In one embodiment, the step of obtaining the inlet water temperature based on the temperature of each sensor includes:

[0088] The inlet water temperature is determined based on the operating time of the heat pump system and the minimum temperature value among the various sensors.

[0089] The operating time of a heat pump system can be defined as the duration of its operation after it is powered on. For example, the operating time of a heat pump system can be calculated in days.

[0090] For example, when the heat pump system is powered on for the first time, the minimum temperature value among all the sensor temperatures of that day is used as the benchmark. If the heat pump system operates for more than 1 day but less than 7 days, the minimum inlet water temperature value of the previous day is used. If the heat pump system operates for more than 7 days, the minimum inlet water temperature value of the previous 7 days is used. A 7-day cycle is defined, with the last 7 days covering the minimum inlet water temperature value of the previous 7 days. It should be noted that if the heat pump system malfunctions, the inlet water temperature will be 15℃.

[0091] In one embodiment, such as Figure 4 As shown, the steps to obtain the target usable water volume by processing the inlet water temperature, the first sensor temperature, the second sensor temperature, and the third sensor temperature based on a preset usable water volume model include:

[0092] Step S410: When the temperature difference between any two temperature values ​​among the first sensing temperature, the second sensing temperature, and the third sensing temperature is less than or equal to the third temperature threshold, determine the temperature value of the third sensing temperature.

[0093] For example, the third temperature threshold can be 3℃. By taking the difference between any two of the first, second, and third sensing temperatures, the corresponding temperature difference is obtained. If any temperature difference is less than or equal to 3℃, it is determined that the heat pump system is in the initial cooling water supply or long-term power outage state, and then the magnitude of the third sensing temperature is determined.

[0094] Step S420: If the third sensing temperature is greater than or equal to the fourth temperature threshold, then based on the preset available water volume model, the inlet water temperature, the first sensing temperature, the second sensing temperature and the third sensing temperature are processed to obtain the target available water volume.

[0095] The fourth temperature threshold can be, but is not limited to, 40℃. The third sensing temperature is compared with the fourth temperature threshold. If the third sensing temperature is greater than or equal to the fourth temperature threshold, the inlet water temperature, the first sensing temperature, the second sensing temperature, and the third sensing temperature are processed based on a preset usable water volume model to obtain a precise target usable water volume, improving the accuracy of usable water volume acquisition and enhancing the intelligence of the heat pump system. If the third sensing temperature is less than the fourth temperature threshold, the calculation of the target usable water volume is stopped, thus simplifying the calculation of the target usable water volume.

[0096] It should be noted that when the heat pump system is in a non-heating phase (such as during non-electric heating and compressor start-up periods), there is no need to calculate the target available water volume, which further simplifies the calculation of the target available water volume.

[0097] In one embodiment, such as Figure 5 As shown, after processing the inlet water temperature and the temperatures of each sensor based on a preset available water volume model to obtain the target available water volume, the process includes:

[0098] Step S510: Obtain the target available water volume at different calculation time points.

[0099] For example, the base time for the calculation period can be set to 3:00, 8:00, 13:00, or 19:00. By acquiring the sensing temperature of the temperature sensing module 106 in different calculation periods, the corresponding inlet water temperature is obtained based on the sensing temperature of each different calculation period. Based on the preset available water volume model, the corresponding inlet water temperature and each sensing temperature are processed to obtain the target available water volume for the corresponding calculation period.

[0100] Step S520: Based on the available water volume for each target, obtain the user's actual water consumption in different time periods.

[0101] For example, the water consumption for the period from 3:00 to 8:00 is obtained by subtracting the target available water volume at 3:00 from the target available water volume at 8:00. The water consumption for the period from 8:00 to 13:00 is obtained by subtracting the target available water volume at 8:00 from the target available water volume at 13:00, and so on.

[0102] Step S530: Input the target available water volume and the actual water consumption into the preset machine learning model for processing to obtain the heat pump start-up time of the heat pump system.

[0103] The preset machine learning model can be obtained through system pre-setting. For example, based on the preset machine learning model, the machine learning process is initiated, with the heat pump set temperature set to 52℃. The first week is a self-learning process; the second week and thereafter are self-adjustment processes, with data from the following week overwriting the data from the previous week. Daily and hourly water consumption is calculated, and the phased / daily water consumption is summarized. Starting from the second week of self-adjustment, the heat pump system's heat pump start-up time is calculated based on the water consumption habits of each previous phase, thereby achieving accurate calculation of the heat pump's advance start-up time.

[0104] For example, the implementation process of step S530 is as follows: After the first week of learning, the target available water volume at 8 o'clock on a certain day and the target available water volume at 13 o'clock are 120L, while the current available water volume is 80L. Assuming the heating rate is 25L / h, the advance start time = 40 / 25 = 1.6h. Taking 8 o'clock as the base time, the start time is advanced by 1.6h.

[0105] Step S540: Control the start and stop of the heat pump system according to the heat pump start time.

[0106] For example, by controlling the start and stop of the heat pump system based on the heat pump's start-up time, precise control can be achieved to enable the heat pump to start up in advance so that users can obtain water in a timely manner. This improves the intelligence level of the heat pump system and enhances its energy efficiency.

[0107] For example, the heat pump is forcibly started when the third sensing temperature is less than or equal to the fifth temperature threshold (e.g., 35°C).

[0108] In one example, the temperature change rate corresponding to the first, second, or third sensing temperature can be obtained, and then it can be determined whether water tank 104 is discharging water based on the temperature change rate. For example, if the temperature change rate corresponding to the first, second, or third sensing temperature is less than 2℃ / 10min, it is determined that water tank 104 is discharging water.

[0109] In one embodiment, after the step of obtaining the user's actual water consumption in different time periods based on each target available water volume, the method further includes:

[0110] The difference between the target available water volume and the actual water consumption in the current time period is calculated to obtain the water volume difference; when the water volume difference exceeds the water volume threshold, the heat pump of the heat pump system is controlled to shut down.

[0111] The water volume threshold can be, but is not limited to, 20. For example, if the difference between the target available water volume and the actual water consumption in the current time period is greater than or equal to 20, the heat pump of the heat pump system will be shut down; otherwise, the difference between the target available water volume and the actual water consumption in the current time period will be divided by a preset value (such as 30) to obtain the advance start-up time (accurate to 0.1 hours). Based on the advance start-up time, the heat pump of the heat pump system will be controlled to start and stop, achieving precise control of the heat pump to start in advance so that users can obtain water in a timely manner. This improves the intelligence level of the heat pump system and enhances its energy efficiency.

[0112] In one example, the fourth temperature threshold corresponding to the third sensor temperature can be adjusted based on the daily water consumption for different volumes. For instance, for a 200L water tank 104, if the water consumption baseline is set to 160L, then the fourth temperature threshold is set to 52℃ when the water consumption is between 160 and 220L; 47℃ when the water consumption is between 100 and 160L; 45℃ when the water consumption is less than 100L; and 54℃ when the water consumption is greater than 220L.

[0113] In one example, a minimum emergency water volume can be set, such as 50L. When the target available water volume is detected to reach the minimum emergency water volume, the water inlet can be forcibly opened to replenish the drinking water in the water tank 104 in a timely manner.

[0114] It should be understood that, although Figures 2 to 5 The steps in the flowchart are shown sequentially as indicated by the arrows, but these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order in which these steps are executed, and they can be performed in other orders. Figures 2 to 5 At least some of the steps in the process may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these sub-steps or stages is not necessarily sequential, but can be executed in turn or alternately with other steps or at least some of the sub-steps or stages of other steps.

[0115] In one embodiment, such as Figure 6 As shown, this embodiment of the invention also provides a heat pump water control device, comprising:

[0116] The temperature sensing acquisition unit 610 is used to acquire the sensing temperature of different water tank liquid levels detected by the temperature sensing module.

[0117] The inlet water temperature calculation unit 620 is used to obtain the inlet water temperature based on the temperature of each sensor.

[0118] The available water volume calculation unit 630 is used to process the inlet water temperature and the temperature of each sensor based on a preset available water volume model to obtain the target available water volume.

[0119] Specific limitations regarding the heat pump water control device can be found in the limitations of the heat pump water control method described above, and will not be repeated here. Each module in the aforementioned heat pump water control device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in the controller 102 of the integrated heat pump unit in hardware form or independent of it, or stored in the memory of the integrated heat pump unit in software form, so that the controller 102 can call and execute the corresponding operations of each module.

[0120] In one embodiment, such as Figure 7 As shown, this embodiment of the invention also provides a heat pump integrated machine, including a temperature sensing module 106, a water tank 104, and a controller 102; the temperature sensing module 106 is disposed on the water tank 104, and the controller 102 is connected to the temperature sensing module 106; the controller 102 is used to execute the steps of the heat pump water control method described in any of the above-mentioned embodiments.

[0121] The temperature sensing module 106 may include a first temperature sensor 1062, a second temperature sensor 1064, and a third temperature sensor 1066. The first temperature sensor 1062 may be disposed on the water tank 104, and thus the first temperature sensor 1062 can detect a first sensing temperature corresponding to the liquid level of the first water tank and transmit the first sensing temperature to the controller 102. The second temperature sensor 1064 may be disposed on the water tank 104, and thus the second temperature sensor 1064 can detect a second sensing temperature corresponding to the liquid level of the second water tank and transmit the second sensing temperature to the controller 102. The third temperature sensor 1066 may be disposed on the water tank 104, and thus the third temperature sensor 1066 can detect a third sensing temperature corresponding to the liquid level of the third water tank and transmit the third sensing temperature to the controller 102.

[0122] The controller 102 can be used to perform the following steps of the heat pump water control method:

[0123] The system acquires the sensing temperatures of different water tank liquid levels detected by the temperature sensing module 106; obtains the inlet water temperature based on each sensing temperature; and processes the inlet water temperature and each sensing temperature based on a preset available water volume model to obtain the target available water volume, thereby achieving accurate calculation of the available water volume of the heat pump system.

[0124] In the above embodiments, the temperature sensing module 106 detects the sensing temperature of different water tank liquid levels in the water tank 104, and determines the inlet water temperature of the water tank based on each sensing temperature. Then, by using a preset available water volume model, the inlet water temperature and each sensing temperature are processed to obtain an accurate target available water volume, which improves the accuracy of obtaining available water volume and enhances the intelligence of the heat pump system.

[0125] In one embodiment, a computer-readable storage medium is also provided, on which a computer program is stored, which, when executed by a controller, implements the steps of the heat pump water control method described above.

[0126] In one example, when the computer program is executed by the controller, it performs the following steps:

[0127] The system acquires the sensing temperatures of different water tank liquid levels detected by the temperature sensing module; obtains the inlet water temperature based on each sensing temperature; and processes the inlet water temperature and each sensing temperature based on a preset available water volume model to obtain the target available water volume.

[0128] Those skilled in the art will understand that all or part of the processes in the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments described above. Any references to memory, storage, databases, or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), direct-access memory bus DRAM (DRDRAM), and memory bus DRAM (RDRAM), etc.

[0129] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0130] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A method for controlling water usage in a heat pump, characterized in that, Includes the following steps: The temperature is obtained from the temperature sensing module at different water tank liquid levels. The inlet water temperature is obtained based on the temperature of each sensor described. Based on a preset available water volume model, the inlet water temperature and each of the sensor temperatures are processed to obtain the target available water volume; The temperature sensing module includes a first temperature sensor, a second temperature sensor, and a third temperature sensor; the first temperature sensor is used to detect a first sensing temperature corresponding to the liquid level of the first water tank, the second temperature sensor is used to detect a second sensing temperature corresponding to the liquid level of the second water tank, and the third temperature sensor is used to detect a third sensing temperature corresponding to the liquid level of the third water tank; the liquid level of the third water tank is greater than the liquid level of the second water tank, and the liquid level of the second water tank is greater than the liquid level of the first water tank. The steps for processing the inlet water temperature and each of the sensor temperatures based on a preset available water volume model to obtain the target available water volume include: Based on a preset available water volume model, the inlet water temperature, the first sensing temperature, the second sensing temperature, and the third sensing temperature are processed to obtain the target available water volume. The step of processing the inlet water temperature, the first sensing temperature, the second sensing temperature, and the third sensing temperature based on a preset available water volume model to obtain the target available water volume includes: When the inlet water temperature is greater than or equal to the first temperature threshold, the first sensing temperature, the second sensing temperature and the third sensing temperature are input into the first usable water quantum model for processing to obtain the target usable water volume. The first available water quantum model is: V1 = A1 * X * X + B1 * X - C1 Where V1 is the corresponding target available water volume, X = (T1 + T2 + T3) / 3, T1 is the first sensing temperature, T2 is the second sensing temperature, T3 is the third sensing temperature, and A1, B1 and C1 are constants.

2. The heat pump water control method according to claim 1, characterized in that, The step of obtaining the inlet water temperature based on the temperature of each of the sensors includes: The inlet water temperature is obtained based on the first sensing temperature, the second sensing temperature, and the third sensing temperature.

3. The heat pump water control method according to claim 2, characterized in that, The step of processing the inlet water temperature, the first sensing temperature, the second sensing temperature, and the third sensing temperature based on a preset available water volume model to obtain the target available water volume further includes: When the inlet water temperature is less than the first temperature threshold and greater than or equal to the second temperature threshold, the first sensing temperature, the second sensing temperature and the third sensing temperature are input into the second usable water quantum model for processing to obtain the target usable water volume. When the inlet water temperature is less than the second temperature threshold, the first sensing temperature, the second sensing temperature, and the third sensing temperature are input into the third usable water quantum model for processing to obtain the target usable water volume.

4. The heat pump water control method according to claim 3, characterized in that, The second usable water quantum model is: V2 = A2 * X * X + B2 * X − C2 Where V2 is the corresponding target available water volume, and A2, B2 and C2 are constants; The third available water quantum model is: V3 = A3∗X∗X + B3∗X+C3 Where V3 is the corresponding target available water volume, and A3, B3 and C3 are constants.

5. The heat pump water control method according to claim 1, characterized in that, The step of obtaining the inlet water temperature based on the temperature of each of the sensors includes: The inlet water temperature is determined based on the operating time of the heat pump system and the minimum temperature value among the various sensor temperatures.

6. The heat pump water control method according to claim 2, characterized in that, The step of processing the inlet water temperature, the first sensing temperature, the second sensing temperature, and the third sensing temperature based on a preset available water volume model to obtain the target available water volume includes: When the temperature difference between any two temperature values ​​among the first sensing temperature, the second sensing temperature, and the third sensing temperature is less than or equal to the third temperature threshold, the temperature value of the third sensing temperature is determined. If the third sensing temperature is greater than or equal to the fourth temperature threshold, then based on the preset available water volume model, the inlet water temperature, the first sensing temperature, the second sensing temperature and the third sensing temperature are processed to obtain the target available water volume.

7. The heat pump water control method according to any one of claims 1 to 6, characterized in that, The step of processing the inlet water temperature and each of the sensor temperatures based on a preset available water volume model to obtain the target available water volume includes: Obtain the target available water volume at different calculation time points; Based on the target available water volume, the user's actual water consumption in different time periods is obtained; The target available water volume and the actual water consumption are input into a preset machine learning model for processing to obtain the heat pump start-up time of the heat pump system. The start and stop of the heat pump system are controlled according to the heat pump start-up time.

8. The heat pump water control method according to claim 7, characterized in that, The step of obtaining the user's actual water consumption in different time periods based on each of the target available water quantities further includes: The difference between the target available water volume and the actual water consumption in the current time period is calculated to obtain the water volume difference. When the water volume difference exceeds the water volume threshold, the heat pump of the heat pump system is controlled to shut down.

9. A heat pump water control device, characterized in that, The apparatus, applied to the heat pump water control method as described in any one of claims 1 to 8, comprises: The temperature sensing acquisition unit is used to acquire the sensing temperature of different water tank liquid levels detected by the temperature sensing module. The inlet water temperature calculation unit is used to obtain the inlet water temperature based on the temperature of each of the sensors. The available water volume calculation unit is used to process the inlet water temperature and each of the sensor temperatures based on a preset available water volume model to obtain the target available water volume; The temperature sensing module includes a first temperature sensor, a second temperature sensor, and a third temperature sensor; the first temperature sensor is used to detect a first sensing temperature corresponding to the liquid level of the first water tank, the second temperature sensor is used to detect a second sensing temperature corresponding to the liquid level of the second water tank, and the third temperature sensor is used to detect a third sensing temperature corresponding to the liquid level of the third water tank; the liquid level of the third water tank is greater than the liquid level of the second water tank, and the liquid level of the second water tank is greater than the liquid level of the first water tank. The available water quantity calculation unit is also used for: Based on a preset available water volume model, the inlet water temperature, the first sensing temperature, the second sensing temperature, and the third sensing temperature are processed to obtain the target available water volume. The available water quantity calculation unit is also used for: When the inlet water temperature is greater than or equal to the first temperature threshold, the first sensing temperature, the second sensing temperature and the third sensing temperature are input into the first usable water quantum model for processing to obtain the target usable water volume. The first available water quantum model is: V1 = A1 * X * X + B1 * X - C1 Where V1 is the corresponding target available water volume, X = (T1 + T2 + T3) / 3, T1 is the first sensing temperature, T2 is the second sensing temperature, T3 is the third sensing temperature, and A1, B1 and C1 are constants.

10. A heat pump integrated machine, characterized in that, It includes a temperature sensing module, a water tank, and a controller; the temperature sensing module is mounted on the water tank, and the controller is connected to the temperature sensing module. The controller is used to perform the steps of the heat pump water control method according to any one of claims 1 to 8.

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