Control method and control device of heat pump equipment, electronic equipment and storage medium

Abstract

The application provides a control method and device of a heat pump equipment, an electronic device and a storage medium. The control method comprises: acquiring an ambient temperature and a water outlet temperature of a water outlet end of a water using module; when the ambient temperature is less than a preset freezing ambient threshold value and the water outlet temperature is less than a preset freezing water temperature threshold value, a first circulating water pump is controlled to be turned on; when a first electric heating module is in a startup state, the startup state of the first electric heating module is maintained, and a first running duration of the first electric heating module is acquired; when the first running duration is equal to a preset first duration threshold value, the first electric heating module is turned off, and a compressor is controlled to operate; and when a second running duration of the compressor is equal to a preset second duration threshold value, the compressor is turned off and the first electric heating module is restarted. According to the scheme provided in the application, the risk of pipe rupture in the compressor can be reduced, and the pipe is protected from mechanical damage.

Description

Technical Field

[0001] This application relates to, but is not limited to, the field of heat pump equipment technology, and in particular to a control method, control device, electronic equipment, and storage medium for heat pump equipment. Background Technology

[0002] In low-temperature environments, the pipes in a heat pump system, especially those exposed to the outside air, may experience surface temperatures dropping below freezing due to heat exchange with the surrounding environment. At this point, water vapor in the air can condense directly onto the pipe's outer surface, or liquid water that may form on the pipe surface due to condensation can rapidly freeze at low temperatures. This ice layer on the pipe's outer surface forms an insulating layer, reducing the efficiency of heat exchange between the pipe and the surrounding environment, thus affecting the heat pump's heating capacity. Furthermore, since ice has a larger volume than water of the same mass, the expansion of ice on the pipe surface can cause additional mechanical stress on the pipe material, potentially leading to pipe rupture or deformation over time. Summary of the Invention

[0003] The following is an overview of the subject matter described in detail herein. This overview is not intended to limit the scope of the claims.

[0004] This application provides a control method, control device, electronic device, and storage medium for a heat pump device, which can reduce the risk of pipe rupture within the compressor and protect the pipe from mechanical damage.

[0005] To achieve the above objectives, a first aspect of this application provides a control method for a heat pump device. The heat pump device includes a water module, a compressor, a first electric heating module, and a control module. The compressor and the first electric heating module are electrically connected to the control module. The compressor and the water module are connected through a circulation pipe. The first heating module is disposed on the circulation pipe, and a first circulating water pump is disposed within the circulation pipe. The control method includes: acquiring the ambient temperature and the outlet water temperature of the water module; when the ambient temperature is less than a preset freezing environment threshold and the outlet water temperature is less than a preset freezing water temperature threshold, controlling the first circulating water pump to start; when the first electric heating module is in the on state, maintaining the on state of the first electric heating module and acquiring a first operating time of the first electric heating module; when the first operating time is equal to a preset first duration threshold, turning off the first electric heating module and controlling the compressor to run; when the second operating time of the compressor is equal to a preset second duration threshold, turning off the compressor and restarting the first electric heating module.

[0006] In one embodiment, the control method further includes: acquiring the operating status of the heat pump device; when the operating status is a shutdown state, the ambient temperature is less than the freezing environment threshold, and the outlet water temperature is less than the chilled water temperature threshold, controlling the first circulating water pump to run, and alternately controlling the compressor and the first electric heating module to run for a preset cycle time.

[0007] In one embodiment, the control method further includes: detecting the water flow state in the circulation pipe; when the water flow state is normal and the compressor is in the on state, obtaining the third running time of the compressor; when the third running time is equal to a preset third duration threshold, turning off the compressor and controlling the first electric heating module to run for a preset switching time.

[0008] In one embodiment, the heat pump system further includes a water tank, the circulation pipeline includes a first pipeline and a second pipeline, the water tank is connected to the water-using module through the first pipeline, a second electric heating module is installed in the water tank, the water tank is connected to the compressor through the second pipeline, a first circulating water pump is installed on the first pipeline, a second circulating water pump is installed on the second pipeline, and the first electric heating module is installed on the second pipeline. The control method further includes: when the water flow status of the first pipeline is normal and the water flow status of the second pipeline is abnormal, stopping the compressor, starting the first circulating water pump, turning off the second circulating water pump, and controlling the second electric heating module to continue running; obtaining the fault duration; when the fault duration is equal to a preset adjustment duration threshold, controlling the second circulating water pump to start and obtaining the water flow status of the second pipeline again; when the water flow status of the second pipeline is abnormal, turning off the second circulating water pump again.

[0009] In one embodiment, the control method further includes: acquiring the number of abnormal judgments detected when the water flow state of the second pipe is abnormal; and disabling the compressor when the number of abnormal judgments is equal to a preset number threshold within a preset judgment period.

[0010] In one embodiment, the control method further includes: when the water flow in the second pipeline is normal, turning off the second circulating water pump, controlling the compressor to run, and recording a fourth running time; when the fourth running time is equal to a preset third duration threshold, turning off the compressor, controlling the second circulating water pump to run, and recording a fifth running time; when the fifth running time is equal to the preset fourth duration threshold, turning off the second circulating water pump again and controlling the compressor to run.

[0011] In one embodiment, the control method further includes: when the outlet water temperature is equal to a preset high temperature threshold, turning off the first electric heating module and the compressor, and controlling the first circulating water pump to run.

[0012] To achieve the above objectives, a second aspect of this application provides a control device for a heat pump device. The heat pump device includes a water module, a compressor, a first electric heating module, and a control module. The compressor and the first electric heating module are electrically connected to the control module. The compressor and the water module are connected through a circulation pipe, and a first circulating water pump is installed in the circulation pipe. The control device includes: a temperature detection module for acquiring the ambient temperature and the outlet water temperature of the water module; a first regulation module for controlling the circulating water pump to start when the ambient temperature is less than a preset freezing environment threshold and the outlet water temperature is less than a preset freezing water temperature threshold; a timing module for maintaining the first electric heating module in the on state when it is already on, and acquiring a first operating time of the first electric heating module; a second regulation module for turning off the first electric heating module and controlling the compressor to run when the first operating time is equal to a preset first duration threshold; and a third regulation module for turning off the compressor and restarting the first electric heating module when the second operating time of the compressor is equal to a preset second duration threshold.

[0013] To achieve the above objectives, a third aspect of this application provides an electronic device comprising a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the control method for the heat pump device as described in the first aspect.

[0014] To achieve the above objectives, a fourth aspect of this application provides a storage medium storing a computer program, characterized in that the computer program, when executed by a processor, implements the control method for the heat pump device as described in the first aspect.

[0015] According to the solution provided in the embodiments of this application, in a heat pump device, hot water is first heated by a first electric heating module or compressor. Then, the heated hot water is transported to the water-using module through a circulation pipe. In the water-using module, after the hot water completes its function, it returns to the first electric heating module or compressor through the outlet. The water temperature in the circulation pipe section between the outlet of the water-using module and the first electric heating module or compressor is relatively low, making this section of the circulation pipe the area most prone to freezing in the entire heat pump device. Therefore, in a low-temperature environment, i.e., when the ambient temperature is less than the freezing environment threshold, the first electric heating module, due to its working principle, does not rely on heat exchange with the external environment, and thus can achieve the highest heating efficiency. Conversely, when the outer surface of the compressor pipes freezes due to low ambient temperature, the ice layer significantly reduces its heat exchange efficiency. As an insulating layer, the ice layer hinders the effective transfer of heat, preventing the compressor from exchanging heat as efficiently as it would under ice-free conditions. Consequently, the compressor's heating efficiency is negatively affected, thus impacting the performance of the entire heat pump system. When the user selects the first electric heating module for heating for a first operating time equal to a first duration threshold, the heat pump switches to the compressor for heating. The heat generated by the compressor can directly act on the pipes, helping to quickly melt the ice layer and restore the pipes' heat exchange capacity. This improves the overall system's heat exchange efficiency, effectively and promptly eliminating the ice layer on the compressor pipes, reducing the risk of pipe rupture, protecting the pipes from mechanical damage, and enhancing the safety and stability of the heat pump equipment.

[0016] Other features and advantages of this application will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the application. The objectives and other advantages of this application may be realized and obtained by means of the structures particularly pointed out in the description, claims and drawings. Attached Figure Description

[0017] The accompanying drawings are used to provide a further understanding of the technical solutions of this application and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of this application and do not constitute a limitation on the technical solutions of this application.

[0018] Figure 1 This is a schematic diagram of an optional structure of a heat pump device provided in an embodiment of this application;

[0019] Figure 2 An optional system block diagram of the heat pump device provided in the embodiments of this application;

[0020] Figure 3 A schematic flowchart of an optional control method for a heat pump device provided in an embodiment of this application;

[0021] Figure 4 This is a schematic flowchart of an optional control method in the power-off state provided in an embodiment of this application;

[0022] Figure 5 A schematic diagram of an optional process for switching heating methods provided in an embodiment of this application;

[0023] Figure 6 A schematic diagram of an optional flow circulation method provided in an embodiment of this application;

[0024] Figure 7 A schematic diagram of an optional flow anomaly control method provided in an embodiment of this application;

[0025] Figure 8 A schematic flowchart of an optional water flow control method provided in an embodiment of this application;

[0026] Figure 9 A schematic diagram of another optional process for the control method of the heat pump equipment provided in the embodiments of this application;

[0027] Figure 10 This is a schematic diagram of an optional structure of the control device for the heat pump equipment provided in the embodiments of this application;

[0028] Figure 11 This is a schematic diagram of an optional hardware structure of the electronic device provided in the embodiments of this application. Detailed Implementation

[0029] This section will describe in detail the specific embodiments of this application. Preferred embodiments of this application are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of this application, but they should not be construed as limiting the scope of protection of this application.

[0030] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0031] In the description of this application, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0032] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "electrical connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0033] Currently, in low-temperature environments, the pipes in heat pump systems, especially those exposed to the outside air, may experience surface temperatures dropping below freezing due to heat exchange with the surrounding environment. At this point, water vapor in the air can condense directly onto the pipe's outer surface, or liquid water that may form on the pipe surface due to condensation can rapidly freeze at low temperatures. This ice layer on the pipe's outer surface forms an insulating layer, reducing the efficiency of heat exchange between the pipe and the surrounding environment, thus affecting the heat pump's heating capacity. Furthermore, since ice has a larger volume than water of the same mass, the expansion of ice on the pipe surface can cause additional mechanical stress on the pipe material, potentially leading to pipe rupture or deformation over time.

[0034] To address the problem of pipes easily cracking and deforming in low-temperature environments, this application provides a control method, control device, electronic device, and storage medium for a heat pump device. The control method includes: acquiring the ambient temperature and the outlet water temperature of the water-using module; when the ambient temperature is lower than a preset freezing environment threshold and the outlet water temperature is lower than a preset chilled water temperature threshold, controlling the first circulating water pump to start; when the first electric heating module is in the on-state, maintaining the on-state of the first electric heating module and acquiring the first running time of the first electric heating module; when the first running time is equal to a preset first duration threshold, turning off the first electric heating module and controlling the compressor to run; when the second running time of the compressor is equal to a preset second duration threshold, turning off the compressor and restarting the first electric heating module. According to the solution provided in the embodiments of this application, in a heat pump device, hot water is first heated by a first electric heating module or compressor. Then, the heated hot water is transported to the water-using module through a circulation pipe. In the water-using module, after the hot water completes its function, it returns to the first electric heating module or compressor through the outlet. The water temperature in the circulation pipe section between the outlet of the water-using module and the first electric heating module or compressor is relatively low, making this section of the circulation pipe the area most prone to freezing in the entire heat pump device. Therefore, in a low-temperature environment, i.e., when the ambient temperature is less than the freezing environment threshold, the first electric heating module, due to its working principle, does not rely on heat exchange with the external environment, and thus can achieve the highest heating efficiency. Conversely, when the outer surface of the compressor pipes freezes due to low ambient temperature, the ice layer significantly reduces its heat exchange efficiency. As an insulating layer, the ice layer hinders the effective transfer of heat, preventing the compressor from exchanging heat as efficiently as it would under ice-free conditions. Consequently, the compressor's heating efficiency is negatively affected, thus impacting the performance of the entire heat pump system. When the user selects the first electric heating module for heating for a first operating time equal to a first duration threshold, the heat pump switches to the compressor for heating. The heat generated by the compressor can directly act on the pipes, helping to quickly melt the ice layer and restore the pipes' heat exchange capacity. This improves the overall system's heat exchange efficiency, effectively and promptly eliminating the ice layer on the compressor pipes, reducing the risk of pipe rupture, protecting the pipes from mechanical damage, and enhancing the safety and stability of the heat pump equipment.

[0035] The control method, control device, electronic device, and storage medium of the heat pump equipment provided in this application are specifically described through the following embodiments. First, the control method of the heat pump equipment in this application embodiment is described.

[0036] The embodiments of this application will be further described below with reference to the accompanying drawings.

[0037] Reference Figure 1 and Figure 2 One embodiment of this application provides a heat pump device, including:

[0038] Water module 100;

[0039] The compressor 200 and the water module 100 are connected through a circulation pipe. The water outlet of the water module 100 is equipped with a first circulating water pump 710.

[0040] First electric heating module 310;

[0041] The control module 400, water module 100, compressor 200, first circulating water pump 710 and first electric heating module 310 are electrically connected to the control module 400.

[0042] In one specific embodiment, the control module 400 is provided with a control panel. When the user uses the heat pump equipment for heating, the user can operate the control panel to select heating through the first electric heating module 310, heating through the compressor 200, or heating through both the first electric heating module 310 and the compressor 200 simultaneously.

[0043] In one specific implementation, the control module 400 acquires the ambient temperature and the outlet water temperature of the water-using module 100; when the ambient temperature is less than a preset freezing environment threshold and the outlet water temperature is less than a preset freezing water temperature threshold, it controls the first circulating water pump 710 to start; when the first electric heating module 310 is in the on state, it maintains the on state of the first electric heating module 310 and acquires the first running time of the first electric heating module 310; when the first running time is equal to a preset first duration threshold, it shuts down the first electric heating module 310 and controls the compressor 200 to run; when the second running time of the compressor 200 is equal to a preset second duration threshold, it shuts down the compressor 200 and restarts the first electric heating module 310.

[0044] In one specific implementation, when the ambient temperature is less than a preset freezing environment threshold, the outlet water temperature is less than a preset freezing water temperature threshold, and the compressor 200 is in the on state, the compressor 200 is kept in the on state. When the sixth running time of the compressor 200 is equal to the preset sixth running time threshold, the compressor 200 is turned off and the first electric heating module 310 is started. When the seventh running time of the first electric heating module 310 is equal to the preset seventh running time threshold, the first electric heating module 310 is turned off and the compressor 200 is restarted for heating.

[0045] In one specific embodiment, the heat pump device further includes a water tank 600, and the circulation pipeline includes a first pipeline 510 and a second pipeline 520. The water tank 600 is connected to the water-using module 100 through the first pipeline 510, and the water tank 600 is connected to the compressor 200 through the second pipeline 520. A first electric heating module 310 is installed on the second pipeline 520, and a second electric heating module 320 is installed inside the water tank 600. A first circulating water pump 710 is installed on the first pipeline 510, and a second circulating water pump 720 is installed on the second pipeline 520.

[0046] Specifically, users can select "preheating mode" and "instant heating mode" through the control panel. If the user selects preheating mode, when the user is not using water module 100, the second circulating water pump 720 runs, the first circulating water pump 710 does not run, and the first electric heating module 310, the second electric heating module 320, and the compressor 200 heat the hot water. The heated hot water is stored in the water tank 600. When the user uses water module 100, the first circulating water pump 710 runs. If the user selects instant heating mode, when the user is not using water module 100, the first circulating water pump 710, the second circulating water pump 720, the first electric heating module 310, the second electric heating module 320, and the compressor 200 do not run. When the user uses water module 100, the first circulating water pump 710 and the second circulating water pump 720 run simultaneously, and the first electric heating module 310, the second electric heating module 320, and the compressor 200 are selected to run according to the user's further operation.

[0047] In addition, an electronic expansion valve (not shown in the figure) is installed in the compressor 200. The electronic expansion valve is used to control the flow rate of the heat transfer medium in the compressor 200. The opening control method of the electronic expansion valve is as follows:

[0048] First, the instantaneous superheat of the heat transfer medium is obtained through a preset sampling frequency. The instantaneous superheat refers to the difference between the actual temperature and the saturation temperature of the heat transfer medium under the same evaporation pressure.

[0049] Then, the average superheat is determined based on the instantaneous superheat within the preset sampling time.

[0050] Then, the opening coefficient is determined based on the average superheat.

[0051] Specifically, when the average superheat is less than or equal to -1, the opening coefficient is 3; when the average superheat is greater than -1 and less than or equal to 0, the opening coefficient is 2; and when the average superheat is greater than 0, the opening coefficient is 1.

[0052] Then, based on the opening coefficient, average superheat and preset target superheat, the opening change of the electronic expansion valve at the current time step is determined, where the opening change = opening coefficient × (average superheat - target superheat).

[0053] Specifically, the length of the time step is equal to the sampling duration.

[0054] Additionally, refer to Figure 3 As shown in the figure, this application proposes a control method for a heat pump device. The heat pump device includes a water module, a compressor, a first electric heating module, and a control module. The compressor and the first electric heating module are electrically connected to the control module. The compressor and the water module are connected through a circulation pipe. The first electric heating module is installed on the circulation pipe, and a first circulating water pump is installed in the circulation pipe. The control method includes, but is not limited to, the following steps S310 to S350:

[0055] Step S310: Obtain the ambient temperature and the water outlet temperature of the water module.

[0056] Step S320: When the ambient temperature is lower than the preset freezing environment threshold and the outlet water temperature is lower than the preset freezing water temperature threshold, control the first circulating water pump to start.

[0057] Step S330: When the first electric heating module is in the power-on state, maintain the power-on state of the first electric heating module and obtain the first running time of the first electric heating module;

[0058] Step S340: When the first running time is equal to the preset first duration threshold, the first electric heating module is turned off and the compressor is controlled to run.

[0059] Step S350: When the second running time of the compressor is equal to the preset second duration threshold, the compressor is turned off and the first electric heating module is restarted.

[0060] Understandably, in a heat pump system, hot water is first heated by the first electric heating module or compressor. Then, this heated water is transported to the water-using module via a circulation pipe. In the water-using module, after completing its function, the hot water returns to the first electric heating module or compressor through the outlet. The water temperature in the circulation pipe section between the outlet of the water-using module and the first electric heating module or compressor is relatively low, making this section the most prone to freezing in the entire heat pump system. Therefore, in low-temperature environments, i.e., when the ambient temperature is below the freezing threshold, the first electric heating module, due to its operating principle, does not rely on heat exchange with the external environment, thus achieving the highest heating efficiency. Conversely, when the outer surface of the compressor pipes freezes due to low ambient temperature, the ice layer significantly reduces its heat exchange efficiency. As an insulating layer, the ice layer hinders the effective transfer of heat, preventing the compressor from exchanging heat as efficiently as it would under ice-free conditions. Consequently, the compressor's heating efficiency is negatively affected, thus impacting the performance of the entire heat pump system. When the user selects the first electric heating module for heating for a first operating time equal to a first duration threshold, the heat pump switches to the compressor for heating. The heat generated by the compressor can directly act on the pipes, helping to quickly melt the ice layer and restore the pipes' heat exchange capacity. This improves the overall system's heat exchange efficiency, effectively and promptly eliminating the ice layer on the compressor pipes, reducing the risk of pipe rupture, protecting the pipes from mechanical damage, and enhancing the safety and stability of the heat pump equipment.

[0061] It should be noted that when using heat pump equipment for heating, users can choose to heat through the first electric heating module, through the compressor, or through both the first electric heating module and the compressor.

[0062] In one specific implementation, when the ambient temperature is less than a preset freezing environment threshold, the outlet water temperature is less than a preset chilled water temperature threshold, and the compressor is in the on state, the compressor is kept in the on state. When the sixth running time of the compressor is equal to the preset sixth running time threshold, the compressor is turned off and the first electric heating module is started. When the seventh running time of the first electric heating module is equal to the preset seventh running time threshold, the first electric heating module is turned off and the compressor is restarted for heating.

[0063] For example, if a user selects to heat via the first electric heating module when starting the heat pump device, after the first electric heating module has run for a first duration threshold, the heat pump device will forcibly switch to the compressor for heating. After the compressor has run for a second duration threshold, it will switch back to the heat pump device for heating. Then, when the first electric heating module heats again for a first running time equal to the first duration threshold, it will switch back to the compressor for heating, and so on. Similarly, if a user selects to heat via the compressor when starting the heat pump device, after the compressor has run for a sixth duration threshold, the heat pump device will forcibly switch to the first electric heating module for heating. After the first electric heating module heats again for a seventh duration threshold, it will switch back to the heat pump device for heating. Then, when the compressor heats again for a sixth running time equal to the sixth duration threshold, it will switch back to the first electric heating module for heating, and so on.

[0064] Understandably, during the operation of a heat pump system, regardless of whether the user chooses to use the first electric heating module or the compressor for hot water heating, the system will automatically switch to the other module after a certain period of operation. This raises the temperature of the unused module, reducing the risk of it freezing at low temperatures. In this way, the heat pump system can maintain its applicability and safety in low-temperature environments, ensuring its normal operation and long-term stability.

[0065] Reference Figure 4 As shown in one embodiment of this application, the control method further includes, but is not limited to, the following steps S410 to S430:

[0066] Step S410: Obtain the operating status of the heat pump equipment;

[0067] Step S420: When the working state is off, the ambient temperature is less than the freezing environment threshold, and the outlet water temperature is less than the freezing water temperature threshold, control the first circulating water pump to run, and alternately control the compressor and the first electric heating module to run for a preset cycle time.

[0068] Understandably, in low-temperature environments, when the heat pump equipment is off, the control module continuously monitors the outlet water temperature. When the outlet water temperature falls below the chilled water temperature threshold, it controls the first circulating water pump to operate, thus controlling the flow of water within the heat pump equipment between the water-using module, the first electric heating module, and the compressor. This prevents the water from stagnating and freezing in low-temperature environments. By alternately controlling the compressor and the first electric heating module to operate for preset cycle durations, heat can be provided to the system periodically. This intermittent heating helps prevent ice formation inside pipes and equipment, while also avoiding energy waste from continuous operation.

[0069] In one specific implementation, in a low-temperature environment, and when the heat pump device is in a powered-off state, i.e., the user does not actively turn on the heat pump device for heating, the heat pump device alternately controls the first electric heating module and the compressor to cycle and heat at the lowest heating power until the heat pump device is powered off or the user actively turns on the heat pump device.

[0070] In one specific implementation, during the time the heat pump equipment is in the off state, when the ambient temperature is between (+2℃, +∞), the first circulating water pump does not start; when the ambient temperature is between (-2℃, +2℃), the first circulating water pump stops for 20 minutes, then runs for 10 minutes, and so on; when the ambient temperature is between (-6℃, -2℃), the first circulating water pump stops for 15 minutes, then runs for 15 minutes, and so on; when the ambient temperature is between (-10℃, -6℃), the first circulating water pump stops for 10 minutes, then runs for 20 minutes, and so on; when the ambient temperature is between (-∞, -10℃), the first circulating water pump runs continuously; when the ambient temperature cannot be detected normally, the first circulating water pump stops for 15 minutes, then runs for 15 minutes, and so on.

[0071] Additionally, refer to Figure 5 As shown in one embodiment of this application, the control method further includes, but is not limited to, the following steps S510 to S520:

[0072] Step S510: Detect the water flow status in the circulation pipe. When the water flow status is normal and the compressor is in the start-up state, obtain the third running time of the compressor.

[0073] Step S520: When the third running time is equal to the preset third duration threshold, the compressor is turned off and the first electric heating module is controlled to run for a preset switching time.

[0074] In one specific implementation, before controlling the compressor to heat, it is also necessary to control the first circulating water pump to start and detect the water flow status in the circulating pipe. When the water flow status is normal and the user selects to heat through the compressor, the compressor is kept running. When the sixth running time of the compressor is equal to the preset sixth running time threshold, the compressor is turned off and the first electric heating module is started. When the seventh running time of the first electric heating module is equal to the preset seventh running time threshold, the first electric heating module is turned off and the compressor is restarted to heat.

[0075] It should be noted that the switching time is equal to the seventh running time threshold mentioned above.

[0076] Specifically, if the user selects to heat the device via the compressor when starting the heat pump device, after the compressor has run for a sixth duration threshold, the heat pump device will be forcibly switched to the first electric heating module for heating. After the first electric heating module has run for a seventh duration threshold, it will switch back to the heat pump device for heating. Then, when the compressor runs for a sixth duration that equals the sixth duration threshold, it will switch back to the first electric heating module for heating, and so on in a cycle.

[0077] In one specific implementation, the control module also controls the operating status of the first circulating water pump and the compressor based on the ambient temperature. During the duration of the compressor's heating operation, when the ambient temperature is between (+2℃ and +∞), the first circulating water pump does not start; when the ambient temperature is between (-2℃ and +2℃), the first circulating water pump stops for 20 minutes and then runs for 10 minutes, repeating this cycle; when the ambient temperature is between (-6℃ and -2℃), the first circulating water pump stops for 15 minutes and then runs for 15 minutes, repeating this cycle; when the ambient temperature is between (-10℃ and -6℃), the first circulating water pump stops for 10 minutes and then runs for 20 minutes, repeating this cycle; when the ambient temperature is between (-∞ and -10℃), the first circulating water pump runs continuously; when the ambient temperature cannot be detected normally, the first circulating water pump stops for 15 minutes and then runs for 15 minutes, repeating this cycle.

[0078] In another embodiment of this application, the heat pump system further includes a water tank, a second electric heating module disposed within the water tank, a circulation pipeline including a first pipeline and a second pipeline, the water tank being connected to the water-using module via the first pipeline, and the water tank being connected to the compressor via the second pipeline, a first circulating water pump being disposed on the first pipeline, a second circulating water pump being disposed on the second pipeline, and a first heating module being disposed on the second pipeline. (Refer to...) Figure 6 As shown, the control method also includes, but is not limited to, the following steps S610 to S630:

[0079] Step S610: When the water flow in the first pipe is normal and the water flow in the second pipe is abnormal, stop the compressor, start the first circulating water pump, turn off the second circulating water pump, and control the second electric heating module to continue running.

[0080] Step S620: Obtain the duration of the fault. When the duration of the fault is equal to the preset adjustment duration threshold, control the second circulating water pump to start and obtain the water flow status of the second pipeline again.

[0081] Step S630: When the water flow status of the second pipeline is abnormal, shut down the second circulating water pump again.

[0082] In one specific embodiment, within the heat pump device, both the first heating module and the compressor are mounted on a second pipe connected to the water tank. To ensure the safe operation of the heat pump device, when icing, blockage, or rupture is detected in the second pipe, the heat pump device automatically shuts down the first heating module and compressor. This prevents overheating of localized areas of the second pipe due to continued heating by the heating module and compressor, thus avoiding potential adverse effects on the heat pump device's safety and ensuring the stability and safety of the entire system. Furthermore, when the heat pump device detects an abnormal water flow in the second pipe, the system automatically attempts to start the second circulating water pump to restore normal water flow. If the water flow in the second pipe improves and returns to normal after starting the second circulating water pump, the system restarts the first electric heating module and compressor to continue the heating process of the heat pump device. However, if the water flow in the second pipe remains abnormal after attempting to start the second circulating water pump, the system will shut down the second circulating water pump again, thereby preventing potential damage to the second pipe, the first electric heating module, and the compressor due to abnormal water flow. Therefore, the heat pump device can maintain its operational stability and reliability while ensuring device safety.

[0083] Additionally, refer to Figure 7 As shown in one embodiment of this application, the control method further includes, but is not limited to, the following steps S710 to S720:

[0084] Step S710: Obtain the number of abnormal judgments when the water flow status of the second pipe is detected to be abnormal;

[0085] Step S720: When the number of abnormal judgments is equal to the preset number threshold within the preset judgment period, the compressor is disabled.

[0086] Understandably, during the operation of the heat pump unit, if an abnormality is detected in the water flow within the second pipe, the heat pump unit will attempt to restore normal water flow by restarting the second circulating water pump. After each restart attempt, the heat pump unit will check the water flow status in the second pipe. If the water flow remains abnormal, the system will record the number of anomaly detections. When the number of anomaly detections reaches a preset threshold, the system will stop attempting to restart the second circulating water pump and disable the compressor, thereby preventing potential damage to the second pipe and compressor caused by continuous water flow abnormalities. Through this preventative control strategy, the heat pump unit can ensure equipment safety while avoiding further potential malfunctions and damage.

[0087] In one specific implementation, when the heat pump device detects an anomaly and the number of detected anomalies reaches a preset threshold, the system will automatically perform a cyclical start-up and shutdown of the first electric heating module to prevent damage to the area where the first electric heating module is located due to freezing caused by low temperatures. This periodic heating maintains the temperature of the area, preventing freezing and thus protecting the first electric heating module from damage.

[0088] Additionally, refer to Figure 8 As shown in one embodiment of this application, the control method further includes, but is not limited to, the following steps S710 to S830:

[0089] Step S810: When the water flow in the second pipeline is normal, turn off the second circulating water pump, control the compressor to run, and record the fourth running time.

[0090] Step S820: When the fourth running time is equal to the preset third duration threshold, the compressor is turned off, the second circulating water pump is controlled to run, and the fifth running time is recorded.

[0091] Step S830: When the fifth running time is equal to the preset fourth duration threshold, the second circulating water pump is shut down again and the compressor is controlled to run.

[0092] Understandably, in a heat pump system, when the water flow in the second pipe is normal, the heat pump first shuts down the second circulating water pump and starts the compressor to operate independently. This ensures that the compressor and its surrounding area receive sufficient heat, slowing down the formation of ice. When the compressor's fourth independent operating time reaches the set third duration threshold, the heat pump will shut down the compressor and restart the second circulating water pump to promote water circulation in the second pipe. By controlling the start of the second circulating water pump, not only can overheating of the compressor area due to continuous heating be prevented, reducing the compressor's energy consumption, but the operation of the second circulating water pump also circulates the hot water heated by the compressor within the second pipe. This not only helps to raise the temperature of other areas in the second pipe but also effectively prevents the entire second pipe from freezing, thus ensuring the reliability and safety of the heat pump system in low-temperature environments.

[0093] In one specific implementation, when the water flow in the second pipe is normal, the heat pump equipment operates in a cycle of the following four stages:

[0094] In the first stage, the compressor and the first electric heating module are turned off, and the second circulating water pump is started;

[0095] In the second stage, the second circulating water pump and the first electric heating module are shut down, and the compressor is started for heating;

[0096] In the third stage, the compressor and the first electric heating module are shut down, and the second circulating water pump is started;

[0097] In the fourth stage, the compressor and the second circulating water pump are turned off, and the first electric heating module is started for heating.

[0098] Additionally, refer to Figure 9 As shown in one embodiment of this application, the control method further includes the following step S910:

[0099] Step S910: When the outlet water temperature equals the preset high temperature threshold, turn off the first electric heating module and the compressor, and control the first circulating water pump to run.

[0100] In one specific implementation, during the continuous operation of the first circulating water pump, when the outlet water temperature equals a preset low temperature threshold, the second circulating water pump is temporarily stopped and the compressor and the first electric heating module are controlled to heat the water.

[0101] Additionally, refer to Figure 10 As shown, this application also proposes a control device 1000 for a heat pump device, the control device 1000 comprising:

[0102] Temperature detection module 1001 is used to acquire the ambient temperature and the outlet water temperature of the water module.

[0103] The first control module 1002 is used to control the circulating water pump to start when the ambient temperature is lower than the preset freezing environment threshold and the outlet water temperature is lower than the preset freezing water temperature threshold.

[0104] The timing module 1003 is used to maintain the power-on state of the first electric heating module when the first electric heating module is in the power-on state, and to obtain the first running time of the first electric heating module.

[0105] The second control module 1004 is used to turn off the first electric heating module and control the compressor to run when the first running time is equal to the preset first duration threshold.

[0106] The third control module 1005 is used to shut down the compressor and restart the first electric heating module when the second running time of the compressor is equal to the preset second duration threshold.

[0107] It is understood that, since the control device 1000 of the heat pump device in this embodiment is used to execute the control method of the heat pump device mentioned in the above specific embodiment, the control device 1000 of the heat pump device in this embodiment has the beneficial effects brought about by the control method of the heat pump device mentioned in the above specific embodiment.

[0108] Additionally, refer to Figure 11 , Figure 11This is a schematic diagram of an optional hardware structure of an electronic device provided in an embodiment of this application. The electronic device includes:

[0109] The processor 1101 can be implemented using a general-purpose CPU (Central Processing Unit), microprocessor, application-specific integrated circuit (ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided in the embodiments of this application.

[0110] The memory 1102 can be implemented as a read-only memory (ROM), static storage device, dynamic storage device, or random access memory (RAM). The memory 1102 can store the operating system and other applications. When the technical solutions provided in the embodiments of this specification are implemented through software or firmware, the relevant program code is stored in the memory 1102, and the processor 1101 calls and executes the control method of the heat pump device in the embodiments of this application, for example, executing the above-described... Figure 3 Method steps S310 to S350 Figure 4 Method steps S410 to S420 Figure 5 Method steps S510 to S520 Figure 6 Method steps S610 to S630, Figure 7 Method steps S710 to S720 Figure 8 Method steps S810 to S830 Figure 9 Method steps S310 to S910;

[0111] Input / output interface 1103 is used to implement information input and output;

[0112] The communication interface 1104 is used to enable communication and interaction between this device and other devices. Communication can be achieved through wired means (such as USB, network cable, etc.) or wireless means (such as mobile network, WIFI, Bluetooth, etc.).

[0113] Bus 1105 transmits information between various components of the device (e.g., processor 1101, memory 1102, input / output interface 1103, and communication interface 1104);

[0114] The processor 1101, memory 1102, input / output interface 1103 and communication interface 1104 are connected to each other within the device via bus 1105.

[0115] This application also provides a storage medium, which is a computer-readable storage medium for computer-readable storage. The storage medium stores one or more programs, which can be executed by one or more processors to implement the control method of the heat pump device described above, for example, executing the above-described... Figure 3 Method steps S310 to S350 Figure 4 Method steps S410 to S420 Figure 5 Method steps S510 to S520 Figure 6 Method steps S610 to S630, Figure 7 Method steps S710 to S720 Figure 8 Method steps S810 to S830 Figure 9 Method steps S310 to S910.

[0116] Memory, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs and non-transitory computer-executable programs. Furthermore, memory may include high-speed random access memory, and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In some embodiments, memory may optionally include memory remotely located relative to the processor, and these remote memories can be connected to the processor via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0117] The embodiments described in this application are for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided by the embodiments of this application. As those skilled in the art will know, with the evolution of technology and the emergence of new application scenarios, the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.

[0118] It will be understood by those skilled in the art that Figures 3 to 9 The technical solutions shown do not constitute a limitation on the embodiments of this application, and may include more or fewer steps than shown, or combine certain steps, or different steps.

[0119] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0120] Those skilled in the art will understand that all or some of the steps in the methods disclosed above, as well as the functional modules / units in the systems and devices, can be implemented as software, firmware, hardware, or suitable combinations thereof.

[0121] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification 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 so that the embodiments of this application described herein can be implemented in orders other than those illustrated or 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.

[0122] It should be understood that in this application, "at least one (item)" means one or more, and "more than" means two or more. "And / or" is used to describe the relationship between related objects, indicating that three relationships can exist. For example, "A and / or B" can represent three cases: only A exists, only B exists, and both A and B exist simultaneously, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "At least one (item) of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one (item) of a, b, or c can represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, and c can be single or multiple.

[0123] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of the units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0124] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0125] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0126] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes multiple instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this application. The aforementioned storage medium includes various media capable of storing programs, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0127] The preferred embodiments of the present application have been described above with reference to the accompanying drawings, but this does not limit the scope of the claims of the present application. Any modifications, equivalent substitutions, and improvements made by those skilled in the art without departing from the scope and substance of the embodiments of the present application shall be within the scope of the claims of the present application.

Claims

1. A control method for a heat pump device, characterized in that, The heat pump device includes a water-using module, a compressor, a first electric heating module, and a control module. The compressor and the first electric heating module are electrically connected to the control module. The compressor and the water-using module are connected via a circulation pipe. The first electric heating module is mounted on the circulation pipe, and a first circulating water pump is installed within the circulation pipe. The heat pump system also includes a water tank, and a second electric heating module is installed within the water tank. The circulation pipe includes a first pipe and a second pipe. The water tank is connected to the water-using module via the first pipe and to the compressor via the second pipe. The first circulating water pump is mounted on the first pipe, and a second circulating water pump is mounted on the second pipe. The first electric heating module is mounted on the second pipe. The control method includes: The ambient temperature and the water outlet temperature of the water-using module are obtained. When the ambient temperature is lower than a preset freezing environment threshold and the outlet water temperature is lower than a preset freezing water temperature threshold, the first circulating water pump is controlled to start. When the first electric heating module is in the power-on state, maintain the power-on state of the first electric heating module and obtain the first running time of the first electric heating module; When the first running time is equal to the preset first duration threshold, the first electric heating module is turned off and the compressor is controlled to run. When the second running time of the compressor is equal to the preset second duration threshold, the compressor is turned off and the first electric heating module is restarted; The water flow status in the circulation pipe is detected. When the water flow status is normal and the compressor is in the start-up state, the third running time of the compressor is obtained. When the third running time is equal to the preset third duration threshold, the compressor is turned off, and the first electric heating module is controlled to run for a preset switching time. When the water flow in the first pipe is normal and the water flow in the second pipe is abnormal, the compressor stops running, the first circulating water pump starts, the second circulating water pump stops, and the second electric heating module is controlled to run continuously. The duration of the fault is obtained. When the duration of the fault is equal to a preset adjustment duration threshold, the second circulating water pump is started, and the water flow status of the second pipeline is obtained again. When the water flow in the second pipeline is abnormal, the second circulating water pump will be shut down again. The number of times an anomaly judgment was made when the water flow status of the second pipe was detected to be abnormal; When the number of abnormal judgments equals a preset threshold number within a preset judgment period, the compressor is disabled.

2. The control method according to claim 1, characterized in that, The control method further includes: Obtain the operating status of the heat pump device; When the working state is the off state, the ambient temperature is less than the freezing environment threshold, and the outlet water temperature is less than the freezing water temperature threshold, the first circulating water pump is controlled to run, and the compressor and the first electric heating module are alternately controlled to run for a preset cycle time.

3. The control method according to claim 1, characterized in that, The control method further includes: When the water flow in the second pipeline is normal, the second circulating water pump is turned off, the compressor is controlled to run, and the fourth running time is recorded. When the fourth running time is equal to the preset third duration threshold, the compressor is turned off, the second circulating water pump is controlled to run, and the fifth running time is recorded. When the fifth running time equals the preset fourth duration threshold, the second circulating water pump is shut down again and the compressor is controlled to run.

4. The control method according to claim 1, characterized in that, The control method further includes: When the outlet water temperature equals the preset high temperature threshold, the first electric heating module and the compressor are turned off, and the first circulating water pump is controlled to run.

5. An electronic device, characterized in that, The electronic device includes a memory and a processor, the memory storing a computer program, and the processor executing the computer program to implement the control method of the heat pump device as described in any one of claims 1 to 4.

6. A storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, it implements the control method for the heat pump device as described in any one of claims 1 to 4.

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