Air source heat pump unit control method and device, storage medium and electronic equipment

Abstract

The invention discloses an air source heat pump unit control method and device, a storage medium and electronic equipment, and relates to the technical field of heat pump systems, an air source heat pump unit comprises an outer fan, and the method comprises the steps that live parameters of the air source heat pump unit are obtained and comprise the outer pipe temperature, the evaporation temperature and the environment temperature; when the air source heat pump unit is started for heating, the environment temperature meets the high-temperature heating working condition, the base point temperature is smaller than or equal to the preset first temperature, the outer fan is controlled to rotate for the preset duration at the preset rotating speed, and the base point temperature is the smaller one of the outer pipe temperature and the evaporation temperature; and after the outer fan rotates at the preset rotating speed for the preset duration, the rotating speed of the outer fan is adjusted according to the actual condition parameters. The heating operation reliability of the air source heat pump unit can be improved.

Description

Technical Field

[0001] This application relates to the field of heat pump system technology, specifically to a control method, device, storage medium, and electronic equipment for an air source heat pump unit. Background Technology

[0002] When traditional air source heat pump units are in heating mode, the outdoor ambient temperature needs to be limited to the maximum limit temperature for maximum load heating (such as 24°C). However, some existing air source heat pump units can operate in an ambient temperature range higher than this maximum limit temperature.

[0003] When an air source heat pump unit operates in high-temperature heating mode at an ambient temperature exceeding the maximum limit temperature, it is in high-temperature heating condition. Currently, under high-temperature heating conditions, the control strategy for the outdoor fan of the air source heat pump unit is mainly based on a fixed speed curve or simple temperature-PID regulation.

[0004] With the current outdoor fan control method, under high-temperature heating conditions, air source heat pump units are prone to problems such as high-pressure protection shutdown due to insufficient heat dissipation and compressor failure due to abnormal low-pressure, resulting in weak reliability of air source heat pump unit heating operation. Summary of the Invention

[0005] This application provides a control scheme for an air source heat pump unit. Under high-temperature heating conditions, it can effectively prevent the air source heat pump unit from shutting down due to insufficient heat dissipation and from malfunctioning compressors due to abnormal low pressure, thereby improving the reliability of the air source heat pump unit's heating operation.

[0006] The embodiments of this application provide the following technical solutions:

[0007] According to one embodiment of this application, a control method for an air source heat pump unit is provided. The air source heat pump unit includes an outdoor fan. The method includes: acquiring real-time parameters of the air source heat pump unit, the real-time parameters including external pipe temperature, evaporation temperature, and ambient temperature; when the air source heat pump unit starts heating, and the ambient temperature meets the high-temperature heating condition and the base point temperature is less than or equal to a preset first temperature, controlling the outdoor fan to rotate at a predetermined speed for a predetermined time, the base point temperature being the smaller of the external pipe temperature and the evaporation temperature; after the outdoor fan rotates at the predetermined speed for the predetermined time, adjusting the speed of the outdoor fan according to the real-time parameters.

[0008] In some embodiments of this application, controlling the external fan to rotate at a predetermined speed for a predetermined duration includes: determining the predetermined speed corresponding to the predetermined temperature range in which the ambient temperature is located; and controlling the external fan to rotate at the predetermined speed for the predetermined duration.

[0009] In some embodiments of this application, adjusting the rotation speed of the external fan according to the actual parameters includes: when the base point temperature is less than or equal to the preset first temperature and continues for a preset first duration, controlling the external fan to increase its rotation speed at a first rate, wherein the maximum rotation speed of the external fan does not exceed a first limit speed, and the first limit speed is equal to the sum of the predetermined rotation speed corresponding to the preset temperature range where the ambient temperature is located and the preset first rotation speed.

[0010] In some embodiments of this application, adjusting the speed of the external fan according to the actual parameters further includes: when the temperature of the external pipe is greater than the preset first temperature and the temperature of the external pipe is less than or equal to the preset second temperature, controlling the external fan to maintain the current speed.

[0011] In some embodiments of this application, adjusting the speed of the external fan according to the actual parameters further includes: when the temperature of the external pipe is greater than the preset second temperature and the temperature of the external pipe is less than the preset third temperature, controlling the external fan to reduce its speed at a second rate until a predetermined minimum speed is reached.

[0012] In some embodiments of this application, adjusting the rotation speed of the external fan according to the actual parameters further includes: when the base point temperature is greater than or equal to the preset third temperature and continues for a preset second duration, controlling the external fan to stop rotating.

[0013] In some embodiments of this application, obtaining the real-time parameters of the air source heat pump unit includes: receiving the external pipe temperature, low-pressure, and ambient temperature; and determining the evaporation temperature based on the low-pressure.

[0014] According to one embodiment of this application, an air source heat pump unit control device is provided, wherein the air source heat pump unit includes an outdoor fan, and the device includes: an acquisition module, configured to: acquire real-time parameters of the air source heat pump unit, the real-time parameters including external pipe temperature, evaporation temperature and ambient temperature; and a control module, configured to: when the air source heat pump unit starts heating, and the ambient temperature meets the high-temperature heating condition and the base point temperature is less than or equal to a preset first temperature, control the outdoor fan to rotate at a predetermined speed for a predetermined time, wherein the base point temperature is the smaller of the external pipe temperature and the evaporation temperature; and after the outdoor fan rotates at the predetermined speed for the predetermined time, adjust the speed of the outdoor fan according to the real-time parameters.

[0015] According to another embodiment of this application, a storage medium stores a computer program thereon, which, when executed by a processor of an electronic device, causes the electronic device to perform the methods described in the embodiments of this application.

[0016] According to another embodiment of this application, an electronic device may include: a memory storing a computer program; and a processor reading the computer program stored in the memory to execute the methods described in the embodiments of this application.

[0017] According to another embodiment of this application, a computer program product or computer program includes computer instructions stored in a computer-readable storage medium. A processor of an electronic device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the electronic device to perform the methods provided in the various optional implementations described in the embodiments of this application.

[0018] In this embodiment, the air source heat pump unit includes an outdoor fan. The air source heat pump unit control method includes: acquiring real-time parameters of the air source heat pump unit, including the external pipe temperature, evaporation temperature, and ambient temperature; when the air source heat pump unit starts heating, and the ambient temperature meets the high-temperature heating condition and the base point temperature is less than or equal to a preset first temperature, controlling the outdoor fan to rotate at a predetermined speed for a predetermined time, wherein the base point temperature is the smaller of the external pipe temperature and the evaporation temperature; after the outdoor fan rotates at the predetermined speed for the predetermined time, adjusting the speed of the outdoor fan according to the real-time parameters.

[0019] By acquiring real-time parameters such as the external pipe temperature, evaporation temperature, and ambient temperature of the air source heat pump unit and combining these parameters, the air source heat pump unit can reliably avoid problems such as high-pressure protection shutdown due to insufficient heat dissipation and compressor failure due to abnormal low pressure during the start-up and formal operation phases under high-temperature heating conditions, thereby improving the heating operation reliability of the air source heat pump unit. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A flowchart of an air source heat pump unit control method according to an embodiment of this application is shown.

[0022] Figure 2 A system architecture diagram of an air source heat pump unit according to an embodiment of this application is shown.

[0023] Figure 3A block diagram of an air source heat pump unit control device according to an embodiment of this application is shown.

[0024] Figure 4 A block diagram of an electronic device according to an embodiment of this application is shown. Detailed Implementation

[0025] The present disclosure will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the embodiments provided herein are merely illustrative of the present disclosure and are not intended to limit the present disclosure. Furthermore, the embodiments provided below are some embodiments for implementing the present disclosure, and not all embodiments for implementing the present disclosure. Unless otherwise specified, the technical solutions described in the embodiments of the present disclosure can be implemented in any combination.

[0026] It should be noted that, in the embodiments of this disclosure, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a method or apparatus that includes a list of elements includes not only the elements expressly described, but also other elements not expressly listed, or elements inherent to implementing the method or apparatus. Without further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of other related elements (e.g., steps in the method or units in the apparatus, such as portions of circuitry, processors, programs, or software, etc.) in the method or apparatus that includes that element.

[0027] For example, the air source heat pump unit control method provided in this disclosure includes a series of steps, but the air source heat pump unit control method provided in this disclosure is not limited to the steps described. Similarly, the air source heat pump unit control device provided in this disclosure includes a series of units, but the device provided in this disclosure is not limited to the units explicitly described, but may also include units that need to be set up to obtain relevant information or to process information.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure.

[0029] It is understood that in the specific implementation of this application, relevant data is involved. When the embodiments in this application are applied to specific products or technologies, user permission or consent is required, and the collection, use and processing of relevant data must comply with the relevant laws, regulations and standards of the relevant countries and regions.

[0030] Traditional air source heat pump units require the outdoor ambient temperature to be limited to the maximum operating temperature (e.g., 24°C) during heating operation. Some existing air source heat pump units can operate at ambient temperatures exceeding this maximum limit. When operating in ambient temperatures above this maximum limit, the air source heat pump unit is in a high-temperature heating condition. Currently, under high-temperature heating conditions, the control strategy for the outdoor fan in air source heat pump units is mainly based on a fixed speed curve or simple temperature-PID regulation. With the current outdoor fan control method, under high-temperature heating conditions, air source heat pump units are prone to problems such as high-pressure protection shutdown due to insufficient heat dissipation and compressor failure due to abnormal low-pressure, resulting in relatively weak reliability in heating operation.

[0031] To address these issues, this application provides a control scheme for air source heat pump units. Under high-temperature heating conditions, this scheme can effectively prevent air source heat pump units from shutting down due to insufficient heat dissipation and from malfunctioning compressors due to abnormal low pressure, thereby improving the reliability of air source heat pump unit heating operation.

[0032] The following is a detailed description of the relevant embodiments of the air conditioning control scheme provided in this application.

[0033] Figure 1 A flowchart illustrating an embodiment of an air source heat pump unit method according to this application is shown schematically. The execution entity of this air source heat pump unit method may be a control module with processing capabilities. The control module may be located in electronic devices such as air source heat pump units, remote controls, wired controllers, mobile phones, computers, smartwatches, and other home appliances, and may include at least a memory and a processor.

[0034] In one embodiment of this application, the control module, which serves as the execution subject of the air source heat pump unit method, is specifically disposed within the air source heat pump unit. The control module may include a processor and a memory; that is, the air source heat pump unit includes the processor and the memory, and the memory stores a computer program. Therefore, the processor in the air source heat pump unit can read the computer program stored in the memory to execute the methods of the various embodiments of this application.

[0035] In addition, see Figure 2 ,like Figure 2The schematic diagram illustrates a system architecture of an example air source heat pump unit according to this application. The air source heat pump unit may include at least a compressor 210, a gas-liquid separator 220, a four-way valve 230, a water-side heat exchanger 240, an air-side heat exchanger 250, an electronic expansion valve 260, and an outdoor fan 270. A low-pressure sensor 280 can be installed on the connecting pipe between the suction end of the compressor 210 and the gas-liquid separator 220. The gas-liquid separator 220 is connected to the first end (S-tube) of the four-way valve 230, and the discharge end of the compressor 210 is connected to the second end (D-tube) of the four-way valve 230. The third end (C-tube) of the four-way valve 230 is connected to the water-side heat exchanger 240, which is connected to the air-side heat exchanger 250. An electronic expansion valve 260 is installed on the connecting pipe between the water-side heat exchanger 240 and the air-side heat exchanger 250. The air-side heat exchanger 250 is connected to the fourth end (E-tube) of the four-way valve 230. A coil temperature sensor 290 can be installed on the pipe of the air-side heat exchanger, and an ambient temperature sensor 2100 can be installed near the air-side heat exchanger. The water-side heat exchanger 240 can be a shell-and-tube heat exchanger, and the air-side heat exchanger 250 can be a finned heat exchanger. In addition, in some scenarios, an economizer can be installed on the connecting pipe between the water-side heat exchanger 240 and the air-side heat exchanger 250. The economizer can be connected to the enthalpy-increasing end of the compressor.

[0036] like Figure 1 As shown, the air source heat pump unit control method may include steps S110 to S130.

[0037] Step S110: Obtain the real-time parameters of the air source heat pump unit, including the external pipe temperature, evaporation temperature and ambient temperature;

[0038] Step S120: When the air source heat pump unit starts heating, and the ambient temperature meets the high temperature heating condition and the base point temperature is less than the preset first temperature, control the outdoor fan to rotate at a predetermined speed for a predetermined time. The base point temperature is the smaller of the outer pipe temperature and the evaporation temperature.

[0039] Step S130: After the external fan rotates at a predetermined speed for a predetermined time, the speed of the external fan is adjusted according to the actual parameters.

[0040] For air source heat pump units, real-time parameters can be obtained. Specifically, this can be achieved by receiving the external pipe temperature and low-pressure readings of the air source heat pump unit, as well as the ambient temperature, and determining the corresponding evaporation temperature based on the low-pressure reading. For example, the external pipe temperature detected by coil temperature sensor 290 can be received in real-time, the low-pressure reading detected by low-pressure sensor 280 can be received in real-time and the corresponding evaporation temperature can be determined based on the low-pressure reading, and the ambient temperature detected by ambient temperature sensor 2100 can be received in real-time. The method for determining the corresponding evaporation temperature based on the low-pressure reading can include either "looking up the evaporation temperature corresponding to the low-pressure reading from a preset temperature lookup table" or "calculating the evaporation temperature based on the low-pressure reading using a preset formula." The external pipe temperature is the pipe temperature of the coil in the air-side heat exchanger; the evaporation temperature can be the saturation temperature of the refrigerant when it changes from a liquid to a gaseous state; and the ambient temperature is the temperature in the outdoor environment.

[0041] When the air source heat pump unit starts heating, the ambient temperature meets the high-temperature heating condition (the ambient temperature is determined to meet the high-temperature heating condition when it is within the preset high-temperature condition range, for example, the preset high-temperature condition range can be 24℃ to 46℃) and the base point temperature (the base point temperature is the smaller of the external pipe temperature and the evaporation temperature, that is, base point temperature = Min(T)). 外管温度 T 蒸发温度 ), T 外管温度 T represents the temperature of the outer tube. 蒸发温度 If the evaporation temperature is lower than the preset first temperature, it accurately reflects the insufficient heat dissipation of the air source heat pump unit during the heating start-up phase. The preset first temperature T1 can be set according to the actual situation. For example, the preset first temperature T1 can be 10℃. The preset first temperature T1 is also the preset threshold temperature for starting the fan under high-temperature heating conditions.

[0042] At this point, the outdoor fan is first controlled to run at a predetermined speed for a predetermined time. This forces the outdoor fan to run at the predetermined speed for the predetermined time during the initial heating start-up phase for effective heat dissipation. This effectively avoids the situation where "the air source heat pump unit experiences instantaneous high pressure due to insufficient heat dissipation when the compressor starts under high load before the outdoor fan is running at full speed," thus preventing the triggering of high-pressure shutdown protection. Moreover, the base point temperature is the lower of the external pipe temperature and the evaporation temperature. The evaporation temperature corresponds to the low-pressure level. Therefore, forcing the outdoor fan to run at the predetermined speed for the predetermined time when the evaporation temperature is too low can also keep the low-pressure level within the compressor's safe range, preventing compressor failure due to abnormal low-pressure.

[0043] Furthermore, once the outdoor fan has been running at a predetermined speed for a predetermined time, the air source heat pump unit can be considered to have entered the formal operation phase. During the formal operation phase, the speed of the outdoor fan can be dynamically adjusted based on the real-time parameters. This allows for continuous dynamic and comprehensive control of the outdoor fan based on the combined external pipe temperature, evaporation temperature, and ambient temperature. This helps to avoid problems such as high-pressure protection shutdown due to insufficient heat dissipation and compressor failure due to abnormal low-pressure conditions.

[0044] Therefore, by acquiring real-time parameters such as the external pipe temperature, evaporation temperature, and ambient temperature of the air source heat pump unit in this embodiment of the application, and by combining these real-time parameters, the air source heat pump unit can reliably avoid problems such as high-pressure protection shutdown due to insufficient heat dissipation and compressor failure due to abnormal low-pressure during the start-up and formal operation phases under high-temperature heating conditions, thereby improving the heating operation reliability of the air source heat pump unit.

[0045] The following description Figure 1 Further optional specific embodiments are provided for each step performed when controlling an air source heat pump unit under the example.

[0046] In one embodiment, step S120, controlling the external fan to rotate at a predetermined speed for a predetermined time, may specifically include: determining a predetermined speed corresponding to a predetermined temperature range in which the ambient temperature is located; and controlling the external fan to rotate at a predetermined speed for a predetermined time.

[0047] As shown in the table below, multiple different preset temperature ranges are pre-divided, such as (24,30], (30,35], etc. Each preset temperature range is set with a corresponding preset rotation speed. For example, the preset rotation speed corresponding to the preset temperature range (24,30] is RPM1.

[0048] Preset temperature range (24,30] (30,35] (35,40] (40,46] (46，+∞) Preset speed

RPM1

RPM2

RPM3

RPM4

RPM5

[0049] Furthermore, based on the real-time ambient temperature, the preset speed corresponding to the preset temperature range of the real-time ambient temperature can be determined, and the outdoor fan can be controlled to rotate at the preset speed for a preset time. Through this temperature zoning and speed corresponding control method, the corresponding preset speed can be matched at different ambient temperatures, so as to force the outdoor fan to rotate at the preset speed for a preset time for effective heat dissipation with more reasonable energy consumption, avoiding the high pressure at the moment of start-up that causes the compressor to start and return liquid, while saving energy consumption.

[0050] In addition, the preset speed corresponding to each preset temperature range can be set according to the actual situation. In one example, the higher the preset temperature range, the greater the preset speed.

[0051] Optionally, in other embodiments, step S120, controlling the outdoor fan to rotate at a predetermined speed for a predetermined time, may specifically include: controlling the outdoor fan to rotate at a uniformly set predetermined speed for a predetermined time. The uniformly set predetermined speed means that the outdoor fan is controlled to rotate at this uniformly set predetermined speed for a predetermined time under all ambient temperatures. For example, when the ambient temperature is greater than 24°C, the outdoor fan is controlled to rotate at this uniformly set predetermined speed RPM3 for a predetermined time, regardless of the temperature range.

[0052] In one embodiment, step S130, adjusting the speed of the external fan according to the actual parameters, may include: when the base point temperature is less than or equal to a preset first temperature T1 and continues for a preset first duration t1, controlling the external fan to increase its speed at a first rate, wherein the maximum speed of the external fan does not exceed a first limit speed, and the first limit speed is equal to the sum of the predetermined speed corresponding to the preset temperature range of the ambient temperature and the preset first speed.

[0053] By continuously monitoring the outer tube temperature T in real time 外管温度 Evaporation temperature T 蒸发温度 and ambient temperature T 环境温度 During the formal operation phase, when Min(T) is detected... 外管温度 T 蒸发温度 If T1 ≤ T1 and the first preset duration t1 is continuously applied, the external fan is controlled to increase its speed at a first rate, and the maximum speed during the increase does not exceed the first limit speed. The first limit speed is equal to the sum of the preset speed corresponding to the preset temperature range of the ambient temperature and the preset first speed.

[0054] For example, at time m during the formal operation phase, Min(T) within a preset first time period t1 prior to time m is detected. 外管温度 T 蒸发温度 If all values ​​are less than or equal to T1, then starting at time m, the external fan can be controlled to increase its speed at a first rate, and the maximum speed cannot exceed a first limit speed, which is equal to the ambient temperature T at time m. 环境温度 The sum of the predetermined speed and the predetermined first speed corresponding to the preset temperature range.

[0055] The preset first temperature T1 and preset first duration t1 can be set according to actual conditions. For example, the preset first temperature T1 can be 10℃ and the preset first duration t1 can be 5 seconds. The first speed can be set according to actual conditions. For example, the first speed can be equal to 20 rpm / min. The preset first rotational speed can be set according to actual conditions. For example, the preset first rotational speed can be equal to 100 rpm.

[0056] In this embodiment, during the formal operation phase under high-temperature heating conditions, when the base point temperature is less than or equal to the preset first temperature T1 and continues for a preset first duration t1, by controlling the outdoor fan to increase its speed at a first rate, the outdoor fan can accurately respond to the heat dissipation demand, avoiding the air source heat pump unit from easily shutting down due to insufficient heat dissipation and high-pressure protection. Furthermore, considering the evaporation temperature directly related to the low-pressure, it can also avoid compressor failure (such as liquid slugging or overheating damage) caused by abnormal low-pressure.

[0057] Furthermore, in one embodiment, step S130, adjusting the speed of the external fan according to the actual parameters, may further include: when the temperature of the external pipe is greater than a preset first temperature and the temperature of the external pipe is less than or equal to a preset second temperature, controlling the external fan to maintain the current speed.

[0058] By continuously monitoring the outer tube temperature T in real time 外管温度 Evaporation temperature T 蒸发温度 and ambient temperature T 环境温度 During the formal operation phase, when the preset first temperature T1 < T is detected... 外管温度 If the preset second temperature T2 is less than the set value, the outdoor fan will be controlled to maintain its current speed. For example, at time n during the normal operation phase, if time T is monitored... 外管温度 If the speed is greater than T1 and less than T2, the external fan can be controlled to maintain the current speed at time n. If the current speed at time n is 0, the external fan can be controlled to continue to stop. If the current speed at time n is Rn, the external fan can be controlled to continue to rotate at the current speed Rn. The current speed Rn can be equal to the predetermined speed corresponding to the preset temperature range where the ambient temperature at time n is located.

[0059] In this embodiment, during the formal operation phase under high-temperature heating conditions, when the external pipe temperature is greater than the preset first temperature and less than or equal to the preset second temperature, the external fan can continue to stably respond to the heat dissipation demand by controlling the external fan to maintain the current speed.

[0060] Furthermore, in one embodiment, step S130, adjusting the speed of the external fan according to the actual parameters, may further include: when the temperature of the external pipe is greater than a preset second temperature and the temperature of the external pipe is less than a preset third temperature, controlling the external fan to reduce its speed at a second rate until a predetermined minimum speed is reached.

[0061] By continuously monitoring the outer tube temperature T in real time 外管温度 Evaporation temperature T 蒸发温度 and ambient temperature T 环境温度 During the formal operation phase, when the preset second temperature T2 < T is detected... 外管温度If the preset third temperature T3 is reached, the outdoor fan will be controlled to reduce its speed at the second rate. For example, at time p during the normal operation phase, if T at time p is monitored... 外管温度 If the value is greater than T2 and less than T3, then at time p, the external fan can be controlled to reduce its speed at a second rate until the predetermined minimum speed is reached.

[0062] The second speed can be set according to actual conditions; for example, the second speed can be equal to 20 rpm / min. The predetermined minimum speed can be set according to actual conditions; for example, the predetermined minimum speed can be equal to 300 rpm.

[0063] In this embodiment, during the formal operation phase under high-temperature heating conditions, when the external pipe temperature is greater than the preset second temperature and less than the preset third temperature, the external fan is controlled to reduce its speed at a second rate until it reaches the predetermined minimum speed. This allows the external fan to slowly reduce its speed when it approaches the preset third temperature, thus avoiding sudden pressure changes that could cause liquid slugging in the compressor.

[0064] Furthermore, in one embodiment, step S130, adjusting the speed of the external fan according to the actual parameters, may further include: when the base point temperature is greater than or equal to a preset third temperature and continues for a preset second duration, controlling the external fan to stop rotating.

[0065] By continuously monitoring the outer tube temperature T in real time 外管温度 Evaporation temperature T 蒸发温度 and ambient temperature T 环境温度 During the formal operation phase, when Min(T) is detected... 外管温度 T 蒸发温度 If the temperature is greater than or equal to a preset third temperature T3 and remains for a preset second duration t2, the external fan will immediately stop rotating. For example, at time 0 during the formal operation phase, if Min(T) is detected within the preset second duration t2 before time 0... 外管温度 T 蒸发温度 If all values ​​are greater than or equal to T3, then the external fan should be stopped immediately at time o to prevent the low pressure from exceeding the compressor's safe range, which could lead to compressor liquid slugging or overheating damage.

[0066] To facilitate better implementation of the air source heat pump unit control method provided in this application, this application also provides an air source heat pump unit control device based on the above-described air source heat pump unit control method. The meanings of the terms used are the same as in the above-described air source heat pump unit control method, and specific implementation details can be found in the descriptions in the method embodiments. Figure 3 A block diagram of an air source heat pump unit control device according to an embodiment of this application is shown.

[0067] like Figure 3As shown, the air source heat pump unit control device 300 may include: an acquisition module 310 for acquiring real-time parameters of the air source heat pump unit, including external pipe temperature, evaporation temperature, and ambient temperature; and a control module 320 for controlling the external fan to rotate at a predetermined speed for a predetermined time when the air source heat pump unit starts heating, and the ambient temperature meets the high-temperature heating condition and the base point temperature is less than or equal to a preset first temperature, wherein the base point temperature is the smaller of the external pipe temperature and the evaporation temperature; and adjusting the speed of the external fan according to the real-time parameters after the external fan has rotated at the predetermined speed for the predetermined time.

[0068] In some embodiments of this application, when controlling the external fan to rotate at a predetermined speed for a predetermined time, the control module 320 can be used to: determine the predetermined speed corresponding to the predetermined temperature range where the ambient temperature is located; and control the external fan to rotate at the predetermined speed for the predetermined time.

[0069] In some embodiments of this application, when adjusting the speed of the external fan according to the actual parameters, the control module 320 can be used to: when the base point temperature is less than or equal to the preset first temperature and continues for a preset first duration, control the external fan to increase its speed at a first rate, wherein the maximum speed of the external fan does not exceed a first limit speed, and the first limit speed is equal to the sum of the predetermined speed corresponding to the preset temperature range where the ambient temperature is located and the preset first speed.

[0070] In some embodiments of this application, when adjusting the speed of the external fan according to the actual parameters, the control module 320 can be used to: control the external fan to maintain the current speed when the temperature of the external pipe is greater than the preset first temperature and the temperature of the external pipe is less than or equal to the preset second temperature.

[0071] In some embodiments of this application, when adjusting the speed of the external fan according to the actual parameters, the control module 320 can be used to: when the temperature of the external pipe is greater than the preset second temperature and the temperature of the external pipe is less than the preset third temperature, control the external fan to reduce its speed at a second rate until a predetermined minimum speed is reached.

[0072] In some embodiments of this application, when adjusting the speed of the external fan according to the actual parameters, the control module 320 can be used to: control the external fan to stop rotating when the base point temperature is greater than or equal to the preset third temperature and continues for a preset second duration.

[0073] In some embodiments of this application, the acquisition module 310 may be used to: receive the outer tube temperature, low pressure and ambient temperature; and determine the evaporation temperature based on the low pressure.

[0074] It should be noted that although several modules or units for the device used to perform actions have been mentioned in the detailed description above, this division is not mandatory. In fact, according to the embodiments of this application, the features and functions of two or more modules or units described above can be embodied in one module or unit. Conversely, the features and functions of one module or unit described above can be further divided and embodied by multiple modules or units.

[0075] Furthermore, embodiments of this application also provide an electronic device, such as... Figure 4 As shown, Figure 4 A block diagram of an electronic device according to an embodiment of this application is shown, specifically:

[0076] The electronic device may include components such as a processor 401 with one or more processing cores, a memory 402 with one or more computer-readable storage media, a power supply 403, and an input unit 404. Those skilled in the art will understand that... Figure 4 The electronic device structure shown does not constitute a limitation on the electronic device and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0077] in:

[0078] The processor 401 is the control center of the electronic device, connecting various parts of the computer device via various interfaces and lines. It executes software programs and / or modules stored in the memory 402, and calls data stored in the memory 402, to perform various functions and process data. Optionally, the processor 401 may include one or more processing cores; preferably, the processor 401 may integrate an application processor and a modem processor, wherein the application processor mainly handles the operating system, user page, and application programs, and the modem processor mainly handles wireless communication. It is understood that the modem processor may not be integrated into the processor 401.

[0079] The memory 402 can be used to store software programs and modules. The processor 401 executes various functional applications and data processing by running the software programs and modules stored in the memory 402. The memory 402 may mainly include a program storage area and a data storage area. The program storage area may store the operating system, application programs required for at least one function (such as sound playback function, image playback function, etc.), etc.; the data storage area may store data created according to the use of the electronic device, etc. In addition, the memory 402 may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device. Accordingly, the memory 402 may also include a memory controller to provide the processor 401 with access to the memory 402.

[0080] The electronic device also includes a power supply 403 that supplies power to the various components. Preferably, the power supply 403 can be logically connected to the processor 401 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system. The power supply 403 may also include one or more DC or AC power supplies, recharging systems, power fault detection circuits, power converters or inverters, power status indicators, and other arbitrary components.

[0081] The electronic device may also include an input unit 404, which can be used to receive input digital or character information, and generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control.

[0082] Although not shown, the electronic device may also include a display unit, etc., which will not be described in detail here. Specifically, in this embodiment, the processor 401 in the electronic device can load the executable files corresponding to the processes of one or more computer programs into the memory 402 according to the following instructions, and the processor 401 runs the computer programs stored in the memory 402, thereby realizing the various functions in the foregoing embodiments of this application.

[0083] For example, processor 401 can execute the following: acquiring the real-time parameters of the air source heat pump unit, including the external pipe temperature, evaporation temperature, and ambient temperature; when the air source heat pump unit starts heating, and the ambient temperature meets the high-temperature heating condition and the base point temperature is less than or equal to a preset first temperature, controlling the external fan to rotate at a predetermined speed for a predetermined time, where the base point temperature is the smaller of the external pipe temperature and the evaporation temperature; after the external fan has rotated at the predetermined speed for the predetermined time, adjusting the speed of the external fan according to the real-time parameters.

[0084] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be performed by a computer program, or by a computer program controlling related hardware. The computer program can be stored in a computer-readable storage medium and loaded and executed by a processor.

[0085] Therefore, embodiments of this application also provide a storage medium storing a computer program that can be loaded by a processor to execute the steps in any of the methods provided in embodiments of this application.

[0086] The storage medium can be a computer-readable storage medium, which may include: read-only memory (ROM), random access memory (RAM), disk or optical disk, etc.

[0087] Since the computer program stored in the storage medium can execute the steps of any of the methods provided in the embodiments of this application, the beneficial effects that the methods provided in the embodiments of this application can achieve can be realized. For details, please refer to the previous embodiments, which will not be repeated here.

[0088] According to another embodiment of this application, a computer program product or computer program includes computer instructions stored in a computer-readable storage medium. A processor of an electronic device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the electronic device to perform the methods provided in the various optional implementations described in the embodiments of this application.

[0089] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein.

[0090] It should be understood that this application is not limited to the embodiments described above and shown in the accompanying drawings, but various modifications and changes can be made without departing from its scope.

Claims

1. A control method for an air source heat pump unit, characterized in that, The air source heat pump unit includes an outdoor fan, and the method includes: Obtain the real-time parameters of the air source heat pump unit, including the external pipe temperature, evaporation temperature and ambient temperature; When the air source heat pump unit starts heating, and the ambient temperature meets the high temperature heating condition and the base point temperature is less than or equal to the preset first temperature, the outdoor fan is controlled to rotate at a predetermined speed for a predetermined time. The base point temperature is the smaller of the outer pipe temperature and the evaporation temperature. After the external fan rotates at the predetermined speed for the predetermined time, the speed of the external fan is adjusted according to the actual parameters.

2. The method according to claim 1, characterized in that, The control of the external fan to rotate at a predetermined speed for a predetermined time includes: Determine the predetermined rotational speed corresponding to the preset temperature range in which the ambient temperature is located; Control the external fan to rotate at the predetermined speed for the predetermined duration.

3. The method according to claim 1, characterized in that, The step of adjusting the speed of the external fan according to the actual parameters includes: When the base point temperature is less than or equal to the preset first temperature and continues for a preset first duration, the external fan is controlled to increase its rotation speed at a first rate, wherein the maximum rotation speed of the external fan does not exceed a first limit speed, and the first limit speed is equal to the sum of the predetermined rotation speed corresponding to the preset temperature range where the ambient temperature is located and the preset first rotation speed.

4. The method according to claim 3, characterized in that, The step of adjusting the speed of the external fan according to the real-time parameters further includes: When the temperature of the outer pipe is greater than the preset first temperature and the temperature of the outer pipe is less than or equal to the preset second temperature, the outer fan is controlled to maintain the current speed.

5. The method according to claim 4, characterized in that, The step of adjusting the speed of the external fan according to the real-time parameters further includes: When the temperature of the outer pipe is greater than the preset second temperature and less than the preset third temperature, the outer fan is controlled to reduce its speed at a second rate until the predetermined minimum speed is reached.

6. The method according to claim 5, characterized in that, The step of adjusting the speed of the external fan according to the real-time parameters further includes: When the base point temperature is greater than or equal to the preset third temperature and continues for a preset second duration, the external fan is controlled to stop rotating.

7. The method according to any one of claims 1 to 6, characterized in that, The acquisition of the real-time parameters of the air source heat pump unit includes: Receives the temperature of the outer tube, the low-pressure level, and the ambient temperature; The evaporation temperature is determined based on the low pressure.

8. A control device for an air source heat pump unit, characterized in that, The air source heat pump unit includes an outdoor fan, and the device includes: The acquisition module is used to: acquire the real-time parameters of the air source heat pump unit, including the external pipe temperature, evaporation temperature and ambient temperature; The control module is configured to: when the air source heat pump unit starts heating, and the ambient temperature meets the high-temperature heating condition and the base point temperature is less than or equal to a preset first temperature, control the outdoor fan to rotate at a predetermined speed for a predetermined time, wherein the base point temperature is the smaller of the external pipe temperature and the evaporation temperature; and after the outdoor fan rotates at the predetermined speed for the predetermined time, adjust the speed of the outdoor fan according to the actual parameters.

9. A storage medium, characterized in that, It stores a computer program that, when executed by the processor of the electronic device, causes the electronic device to perform the method described in any one of claims 1 to 7.

10. An electronic device, characterized in that, include: Memory, which stores computer programs; A processor reads a computer program stored in memory to perform the method described in any one of claims 1 to 7.

Images