Heat pump heating machine, control method and device thereof and computer readable storage medium

Abstract

The embodiment of the invention provides a heat pump heating machine, a control method and device of the heat pump heating machine and a computer readable storage medium, and the control method of the heat pump heating machine comprises the steps that in response to a target control instruction received by the heat pump heating machine, the size relation between the secondary refrigerant temperature of the heat pump heating machine and the indoor environment temperature is determined; in response to the fact that the absolute value of the temperature difference between the secondary refrigerant temperature and the indoor environment temperature is smaller than or equal to a first temperature difference threshold value, whether the heat pump heating machine is controlled to execute a target control action corresponding to the target control instruction or not is determined according to the indoor environment temperature; in response to the fact that the secondary refrigerant temperature is lower than the indoor environment temperature and the absolute value of the temperature difference between the secondary refrigerant temperature and the indoor environment temperature is larger than a first temperature difference threshold value, the heat pump heating machine is controlled to execute a target control action corresponding to the target control instruction; the target control instruction is a heating starting instruction, a refrigeration starting instruction, a cold and hot switching instruction or a hot and cold switching instruction.

Description

Technical Field

[0001] The present application relates to the field of heat pump technology, and in particular to a heat pump heater and a control method, device, and computer-readable storage medium thereof. Background Art

[0002] In the related art, the heat pump heater uses the refrigerant side to provide cold to the coolant side, and then uses the coolant to cyclically release the absorbed cold to the room to meet the indoor heating needs. When testing in the laboratory or troubleshooting during use, the heat pump heater in the related art may not start normally or switch between cooling and heating operations, resulting in the inability to conduct testing and troubleshooting normally. Summary of the invention

[0003] The embodiments of the present application provide a heat pump heater and a control method, device, and computer-readable storage medium thereof, which can ensure the normal startup and switching of hot and cold operation modes of the heat pump heater during experimental testing and troubleshooting, thereby ensuring the normal progress of experimental testing and troubleshooting.

[0004] In a first aspect, an embodiment of the present application provides a heat pump heater control method, comprising: in response to the heat pump heater receiving a target control instruction, determining the relationship between the refrigerant temperature of the heat pump heater and the indoor ambient temperature; in response to determining that the absolute value of the temperature difference between the refrigerant temperature and the indoor ambient temperature is less than or equal to a first temperature difference threshold, determining whether to control the heat pump heater to execute a target control action corresponding to the target control instruction according to the indoor ambient temperature or the outdoor ambient temperature; in response to determining that the refrigerant temperature is lower than the indoor ambient temperature and the absolute value of the temperature difference between the refrigerant temperature and the indoor ambient temperature is greater than the first temperature difference threshold, controlling the heat pump heater to execute the target control action corresponding to the target control instruction; the target control instruction is one of a start heating instruction, a start cooling instruction, a hot and cold switching instruction, and a hot and cold switching instruction.

[0005] In some embodiments, controlling the start of the heat pump heater according to the indoor ambient temperature includes: in response to the start instruction being a start heating instruction, determining whether the indoor ambient temperature or the outdoor ambient temperature is greater than an upper limit temperature; in response to determining that the indoor ambient temperature or the outdoor ambient temperature is less than or equal to the upper limit temperature, controlling the heat pump heater to start heating; in response to determining that the indoor ambient temperature or the outdoor ambient temperature is greater than the upper limit temperature, ignoring the start heating instruction.

[0006] In some embodiments, the start-up of the heat pump heater is controlled according to the indoor ambient temperature, including: in response to the start-up instruction being a start-cooling instruction, determining whether the indoor ambient temperature or the outdoor ambient temperature is less than a lower limit temperature; in response to determining that the indoor ambient temperature or the outdoor ambient temperature is greater than or equal to the lower limit temperature, controlling the heat pump heater to start cooling; in response to determining that the indoor ambient temperature or the outdoor ambient temperature is less than the lower limit temperature, ignoring the start-cooling instruction, and the upper limit temperature is greater than the lower limit temperature.

[0007] In some embodiments, whether to control the heat pump heater to execute the target control action corresponding to the target control instruction is determined according to the indoor ambient temperature or the outdoor ambient temperature, including: in response to the target control instruction being a hot / cold switching instruction, determining whether the indoor ambient temperature or the outdoor ambient temperature is greater than an upper limit temperature; in response to determining that the indoor ambient temperature or the outdoor ambient temperature is less than or equal to the upper limit temperature, controlling the heat pump heater to switch from cooling operation to heating operation; in response to determining that the indoor ambient temperature or the outdoor ambient temperature is greater than the upper limit temperature, ignoring the hot / cold switching instruction.

[0008] In some embodiments, whether to control the heat pump heater to execute the target control action corresponding to the target control instruction is determined according to the indoor ambient temperature or the outdoor ambient temperature, including: in response to the target control instruction being a hot-cold switching instruction, determining whether the indoor ambient temperature or the outdoor ambient temperature is less than a lower limit temperature; in response to determining that the indoor ambient temperature or the outdoor ambient temperature is greater than or equal to the lower limit temperature, controlling the heat pump heater to switch from heating operation to cooling operation; in response to determining that the indoor ambient temperature or the outdoor ambient temperature is less than the lower limit temperature, ignoring the hot-cold switching instruction.

[0009] In some embodiments, controlling the heat pump heater to execute the target control action corresponding to the target control instruction includes: in response to the target control instruction being a start heating instruction, controlling the heat pump heater to start and perform heating operation; in response to the target control instruction being a start cooling instruction, controlling the heat pump heater to start and perform cooling operation; in response to the target control instruction being a hot-cold switching instruction, controlling the heat pump heater to switch from cooling operation to heating operation; in response to the target control instruction being a hot-cold switching instruction, controlling the heat pump heater to switch from heating operation to cooling operation.

[0010] In a second aspect, an embodiment of the present application provides a heat pump heating machine control device, comprising: a pre-judgment circuit, configured to determine the relationship between the refrigerant temperature of the heat pump heating machine and the indoor ambient temperature in response to the heat pump heating machine receiving a start-up instruction; a start-up control circuit, configured to perform the following operations: in response to determining that the absolute value of the temperature difference between the refrigerant temperature and the indoor ambient temperature is less than or equal to a first temperature difference threshold, controlling the heat pump heating machine to start according to the indoor ambient temperature; in response to determining that the refrigerant temperature is lower than the indoor ambient temperature and the absolute value of the temperature difference between the refrigerant temperature and the indoor ambient temperature is greater than the first temperature difference threshold, controlling the heat pump heating machine to start.

[0011] In a third aspect, an embodiment of the present application provides a heat pump heater, comprising: a memory storing a computer program; and a processor, wherein when the computer program is executed by the processor, the heat pump heater control method as described in any of the above embodiments is implemented.

[0012] In some embodiments, the heat pump heater includes a first temperature sensor and a second temperature sensor, wherein the first temperature sensor is used to detect the refrigerant temperature of the heat pump heater, and the second temperature sensor is used to detect the indoor ambient temperature.

[0013] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon, and the computer program is loaded by a processor to execute the steps in the above-mentioned heat pump heating machine control method.

[0014] The heat pump heating machine control method provided in the embodiment of the present application first determines the relationship between the refrigerant temperature of the heat pump heating machine and the indoor ambient temperature when the heat pump heating machine receives a target control instruction. When it is determined that the absolute value of the temperature difference between the refrigerant temperature and the indoor ambient temperature is less than or equal to a first temperature difference threshold, it is determined whether to control the heat pump heating machine to execute the target control action corresponding to the target control instruction according to the indoor ambient temperature or the outdoor ambient temperature, so as to ensure that the heat pump heating machine meets the temperature start-up control requirements during normal use; and when it is determined that the refrigerant temperature is lower than the indoor ambient temperature and the absolute value of the temperature difference between the refrigerant temperature and the indoor ambient temperature is greater than the first temperature difference threshold, the heat pump heating machine is controlled to execute the target control action corresponding to the target control instruction, so as to ensure the normal startup and hot and cold operation mode switching operation of the heat pump heating machine during experimental testing or troubleshooting, thereby ensuring the normal progress of experimental testing and troubleshooting. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 is a flow chart of a heat pump heating machine control method provided by some embodiments of the present application;

[0017] Figure 2 is a partial flow chart of a heat pump heating machine control method provided in some embodiments of the present application;

[0018] Figure 3 is another partial flow chart of the heat pump heater control method provided in some embodiments of the present application;

[0019] Figure 4 is another partial flow chart of a heat pump heater control method provided in some embodiments of the present application;

[0020] Figure 5 is another partial flow chart of the heat pump heater control method provided in some embodiments of the present application;

[0021] Figure 6 This is a structural diagram of a heat pump heater provided in some embodiments of the present application.

[0022] Description of main component symbols:

[0023] 1- heat pump heater, 10- processor, 20- memory. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0025] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0026] “A and / or B” includes the following three combinations: A only, B only, and a combination of A and B.

[0027] The use of "suitable for" or "configured to" in this application is meant to be open and inclusive language, which does not exclude devices that are suitable for or configured to perform additional tasks or steps. In addition, the use of "based on" is meant to be open and inclusive, because the process, step, calculation or other action "based on" one or more stated conditions or values ​​can be based on additional conditions or values ​​beyond the stated values ​​in practice.

[0028] In this application, the word "exemplary" is used to mean "used as an example, illustration, or description." Any embodiment described in this application as "exemplary" is not necessarily to be construed as being preferred or advantageous over other embodiments. The following description is given to enable any technician in the field to implement and use the present application. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the present application can be implemented without using these specific details. In other instances, well-known structures and processes will not be elaborated in detail to avoid obscuring the description of the present application with unnecessary details. Therefore, the present application is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles and features disclosed in the present application.

[0029] like Figure 1 As shown, in the first aspect, an embodiment of the present application provides a heat pump heating machine control method, which includes S10~S30, which can ensure the normal startup and cold and hot operation mode switching of the heat pump heating machine 1 during experimental testing and troubleshooting, thereby ensuring the normal progress of experimental testing and troubleshooting.

[0030] S10: In response to the heat pump heating machine 1 receiving the target control instruction, determining the magnitude relationship between the brine temperature of the heat pump heating machine 1 and the indoor environment temperature.

[0031] Here, the target control instruction is one of a heating start instruction, a cooling start instruction, a heat-cold switching instruction, and a heat-cold switching instruction. The control intention of the heating start instruction is to control the heat pump heater 1 to start in a stopped state, and enter the heating operation after starting. The control intention of the cooling start instruction is to control the heat pump heater 1 to start in a stopped state, and enter the cooling operation after starting. The control intention of the heat-cold switching instruction is to control the heat pump heater 1 to switch from cooling operation to heating operation. The control intention of the heat-cold switching instruction is to control the heat pump heater 1 to switch from heating operation to cooling operation.

[0032] The type of the coolant can be determined according to actual needs, and the embodiments of the present application are not limited thereto; for example, the coolant can be water. The coolant temperature and the indoor ambient temperature can be measured in real time by different temperature sensors.

[0033] S20: In response to determining that the absolute value of the temperature difference between the refrigerant temperature and the indoor ambient temperature is less than or equal to a first temperature difference threshold, determining whether to control the heat pump heating machine 1 to execute a target control action corresponding to the target control instruction according to the indoor ambient temperature or the outdoor ambient temperature.

[0034] Here, the difference between the refrigerant temperature and the indoor ambient temperature can be made, and the absolute value of the difference can be used as the absolute value of the temperature difference between the refrigerant temperature and the indoor ambient temperature. The first temperature threshold can be pre-set in the control system of the heat pump heater 1 to determine the degree of deviation between the refrigerant temperature and the indoor ambient temperature. The outdoor ambient temperature can be measured in real time by a temperature sensor set on the outdoor side, or it can be obtained and determined from the outdoor temperature information released by the meteorological measurement unit through a communication network.

[0035] When it is determined that the absolute value of the temperature difference between the refrigerant temperature and the indoor ambient temperature is less than or equal to the first temperature difference threshold, it means that the difference between the refrigerant temperature and the indoor ambient temperature is small, and the temperatures of the refrigerant and the indoor air are relatively close. At this time, it can be determined whether to control the heat pump heater 1 to execute the target control action corresponding to the target control instruction according to the indoor ambient temperature or the outdoor ambient temperature. In other words, it can be determined whether the indoor ambient temperature or the outdoor ambient temperature meets the ambient temperature requirement of the target control action; when it is determined that the ambient temperature requirement of the target control action is met, the heat pump heater 1 can be controlled to execute the target control action corresponding to the target control instruction; when it is determined that the ambient temperature requirement of the target control action is not met, the heat pump heater 1 can be controlled to ignore the target control instruction and not execute the target control action corresponding to the target control instruction.

[0036] S30: In response to determining that the brine temperature is lower than the indoor ambient temperature and the absolute value of the temperature difference between the brine temperature and the indoor ambient temperature is greater than a first temperature difference threshold, the heat pump heating machine 1 is controlled to execute a target control action corresponding to the target control instruction.

[0037] When it is determined that the coolant temperature is lower than the indoor ambient temperature, and the absolute value of the temperature difference between the coolant temperature and the indoor ambient temperature is greater than the first temperature difference threshold, it means that the coolant temperature is much lower than the indoor air temperature, which may belong to the scenario of the corresponding experimental test or troubleshooting process. At this time, the heat pump heater 1 can be controlled to directly execute the target control action corresponding to the target control instruction to realize the control intention of the target control instruction. For example, when the target control instruction is to start the heating instruction, the heat pump heater 1 can be controlled to start directly in the shutdown state, and enter the heating operation after starting; for another example, when the target control instruction is to start the cooling instruction, the heat pump heater 1 can be controlled to start directly in the shutdown state, and enter the cooling operation after starting; for another example, when the target control instruction is the hot and cold switching instruction, the compressor of the heat pump heater 1 can be controlled to stop directly in the cooling operation, and the compressor can be controlled to restart after the reversing valve is switched to enter the heating operation; for another example, when the target control instruction is the hot and cold switching instruction, the compressor of the heat pump heater 1 can be controlled to stop directly in the heating operation, and the compressor can be controlled to restart after the reversing valve is switched to enter the cooling operation.

[0038] Compared with the related art, the heat pump heating machine control method provided in the embodiment of the present application first determines the relationship between the refrigerant temperature of the heat pump heating machine 1 and the indoor ambient temperature after receiving the target control instruction. When it is determined that the absolute value of the temperature difference between the refrigerant temperature and the indoor ambient temperature is less than or equal to the first temperature difference threshold, it is determined whether to control the heat pump heating machine 1 to execute the target control action corresponding to the target control instruction according to the indoor ambient temperature or the outdoor ambient temperature, so as to ensure that the heat pump heating machine 1 meets the temperature start-up control requirements during normal use; and when it is determined that the refrigerant temperature is lower than the indoor ambient temperature and the absolute value of the temperature difference between the refrigerant temperature and the indoor ambient temperature is greater than the first temperature difference threshold, the heat pump heating machine 1 is controlled to execute the target control action corresponding to the target control instruction, so as to ensure the normal startup and hot and cold operation mode switching operation of the heat pump heating machine 1 during the experimental test or troubleshooting process, thereby ensuring the normal progress of the experimental test and troubleshooting.

[0039] like Figure 2 As shown, in some embodiments, S20 may include S211 to S213.

[0040] S211: In response to the start instruction being a heating start instruction, determining whether the indoor ambient temperature or the outdoor ambient temperature is greater than an upper limit temperature.

[0041] Here, the upper limit temperature can be pre-set in the control system of the heat pump heater 1, and is used as the upper limit critical temperature of the heat pump heater 1 when entering the heating mode, so as to avoid the heat pump heater 1 from heating when the ambient temperature is high, and ensure the operation safety of the heat pump heater 1 and the comfort of the indoor environment. When the indoor ambient temperature or the outdoor ambient temperature is less than or equal to the upper limit temperature, the heat pump heater 1 is allowed to start heating; when the indoor ambient temperature or the outdoor ambient temperature is greater than the upper limit temperature, the heat pump heater 1 is not allowed to start heating.

[0042] In some examples, only the inner loop upper limit temperature may be set, that is, the temperature-reaching start / switch control is performed only according to the indoor ambient temperature. In other examples, only the outer loop upper limit temperature may be set, that is, the temperature-reaching start / switch control is performed only according to the outdoor ambient temperature.

[0043] S212: In response to determining that the indoor ambient temperature or the outdoor ambient temperature is less than or equal to the upper limit temperature, the heat pump heater 1 is controlled to start heating.

[0044] When it is determined that the indoor ambient temperature or the outdoor ambient temperature is less than or equal to the upper limit temperature, it means that the temperature start / switch control condition is met, and the heat pump heater 1 can be controlled to start heating, that is, start in the shutdown state and enter the heating operation after starting. In some examples, only the inner loop upper limit temperature can be set, that is, the temperature start / switch control is performed only according to the indoor ambient temperature; here, when it is determined that the indoor ambient temperature is less than or equal to the inner loop upper limit temperature, the heat pump heater 1 can be controlled to start heating. In other examples, only the outer loop upper limit temperature can be set, that is, the temperature start / switch control is performed only according to the outdoor ambient temperature; here, when it is determined that the outdoor ambient temperature is less than or equal to the outer loop upper limit temperature, the heat pump heater 1 can be controlled to start heating.

[0045] S213: In response to determining that the indoor ambient temperature or the outdoor ambient temperature is greater than the upper limit temperature, ignoring the heating start instruction.

[0046] When it is determined that the indoor ambient temperature or the outdoor ambient temperature is greater than the upper limit temperature, it means that the temperature start / switching control condition is not met, and the heating start instruction can be ignored, and the heat pump heater 1 is controlled to remain in the shutdown state, that is, the heating is not started.

[0047] In some examples, only the upper limit temperature of the inner loop may be set, that is, the temperature start / switch control is performed only according to the indoor ambient temperature; here, when it is determined that the indoor ambient temperature is greater than the upper limit temperature of the inner loop, the heating start instruction may be ignored. In other examples, only the upper limit temperature of the outer loop may be set, that is, the temperature start / switch control is performed only according to the outdoor ambient temperature; here, when it is determined that the outdoor ambient temperature is greater than the upper limit temperature of the outer loop, the heating start instruction may be ignored.

[0048] like Figure 3As shown, in some embodiments, S20 may include S221 to S223.

[0049] S221: In response to the start instruction being a cooling start instruction, determining whether the indoor ambient temperature or the outdoor ambient temperature is less than a lower limit temperature.

[0050] Here, the lower limit temperature can be pre-set in the control system of the heat pump heater 1, and is used as the lower limit critical temperature of the heat pump heater 1 when entering cooling, so as to avoid the heat pump heater 1 from cooling when the ambient temperature is low, and ensure the operation safety of the heat pump heater 1 and the comfort of the indoor environment. When the indoor ambient temperature or the outdoor ambient temperature is greater than or equal to the lower limit temperature, the heat pump heater 1 is allowed to start cooling; when the indoor ambient temperature or the outdoor ambient temperature is less than the lower limit temperature, the heat pump heater 1 is not allowed to start cooling.

[0051] In some examples, only the lower limit temperature of the inner loop may be set, that is, the temperature-reaching start / switch control is performed only according to the indoor ambient temperature. In other examples, only the lower limit temperature of the outer loop may be set, that is, the temperature-reaching start / switch control is performed only according to the outdoor ambient temperature.

[0052] S222: In response to determining that the indoor ambient temperature or the outdoor ambient temperature is greater than or equal to the lower limit temperature, the heat pump heater 1 is controlled to start cooling.

[0053] When it is determined that the indoor ambient temperature or the outdoor ambient temperature is greater than the lower limit temperature, it means that the temperature start / switch control condition is met, and the heat pump heater 1 can be controlled to start cooling, that is, start in the shutdown state and enter cooling operation after starting. In some examples, only the inner ring lower limit temperature can be set, that is, the temperature start / switch control is performed only according to the indoor ambient temperature; here, when it is determined that the indoor ambient temperature is greater than the inner ring lower limit temperature, the cold pump heater can be controlled to start cooling. In other examples, only the outer ring lower limit temperature can be set, that is, the temperature start / switch control is performed only according to the outdoor ambient temperature; here, when it is determined that the outdoor ambient temperature is greater than the outer ring lower limit temperature, the cold pump heater can be controlled to start cooling.

[0054] S223: In response to determining that the indoor ambient temperature or the outdoor ambient temperature is less than the lower limit temperature, the heat pump heating machine 1 is controlled to ignore the start cooling instruction, and the upper limit temperature is greater than the lower limit temperature.

[0055] When it is determined that the indoor ambient temperature or the outdoor ambient temperature is less than the lower limit temperature, it means that the temperature start / switching control condition is not met, and the cooling start instruction can be ignored, and the heat pump heater 1 is controlled to remain in the shutdown state, that is, the cooling is not started.

[0056] In some examples, only the lower limit temperature of the inner loop may be set, that is, the temperature start / switch control is performed only according to the indoor ambient temperature; here, when it is determined that the indoor ambient temperature is less than the lower limit temperature of the inner loop, the start cooling instruction may be ignored. In other examples, only the lower limit temperature of the outer loop may be set, that is, the temperature start / switch control is performed only according to the outdoor ambient temperature; here, when it is determined that the outdoor ambient temperature is less than the lower limit temperature of the outer loop, the start cooling instruction may be ignored.

[0057] like Figure 4 As shown, in some embodiments, S20 may include S231 - S233 .

[0058] S231: In response to the target control instruction being a cooling / heating switching instruction, determining whether the indoor ambient temperature or the outdoor ambient temperature is greater than an upper limit temperature.

[0059] Here, the upper limit temperature can be pre-set in the control system of the heat pump heater 1, and used as the upper limit critical temperature of the heat pump heater 1 when entering the heating mode, so as to avoid the heat pump heater 1 switching to the heating mode when the ambient temperature is high, thereby ensuring the operation safety of the heat pump heater 1 and the comfort of the indoor environment; illustratively, when the indoor ambient temperature or the outdoor ambient temperature is less than or equal to the upper limit temperature, the heat pump heater 1 is allowed to switch from the cooling mode to the heating mode; when the indoor ambient temperature or the outdoor ambient temperature is greater than the upper limit temperature, the heat pump heater 1 is not allowed to switch from the cooling mode to the heating mode, so that the heat pump heater 1 still maintains the cooling mode or enters the shutdown state.

[0060] S232: In response to determining that the indoor ambient temperature or the outdoor ambient temperature is less than or equal to the upper limit temperature, the heat pump heater 1 is controlled to switch from the cooling operation to the heating operation.

[0061] When it is determined that the indoor ambient temperature or the outdoor ambient temperature is less than or equal to the upper limit temperature, it means that the temperature switching control condition is met, and the heat pump heater 1 can be controlled to switch from cooling operation to heating operation. In some examples, only the inner loop upper limit temperature can be set, that is, the temperature switching control is performed only according to the indoor ambient temperature; here, when it is determined that the indoor ambient temperature is less than or equal to the inner loop upper limit temperature, the heat pump heater 1 can be controlled to switch from cooling operation to heating operation. In other examples, only the outer loop upper limit temperature can be set, that is, the temperature switching control is performed only according to the outdoor ambient temperature; here, when it is determined that the outdoor ambient temperature is less than or equal to the outer loop upper limit temperature, the heat pump heater 1 can be controlled to switch from cooling operation to heating operation.

[0062] S233: In response to determining that the indoor ambient temperature or the outdoor ambient temperature is greater than the upper limit temperature, ignoring the cooling / heating switching instruction.

[0063] When it is determined that the indoor ambient temperature or the outdoor ambient temperature is greater than the upper limit temperature, it means that the temperature switching control condition is not met, the hot and cold switching instruction can be ignored, and the heat pump heater 1 is controlled to maintain cooling operation or enter a shutdown state.

[0064] In some examples, only the upper limit temperature of the inner loop may be set, that is, the temperature switching control is performed only according to the indoor ambient temperature; here, when it is determined that the indoor ambient temperature is greater than the upper limit temperature of the inner loop, the hot and cold switching instruction may be ignored. In other examples, only the upper limit temperature of the outer loop may be set, that is, the temperature switching control is performed only according to the outdoor ambient temperature; here, when it is determined that the outdoor ambient temperature is greater than the upper limit temperature of the outer loop, the hot and cold switching instruction may be ignored.

[0065] like Figure 5 As shown, in some embodiments, S20 may include S241-S243.

[0066] S241: In response to the target control instruction being a heating / cooling switching instruction, determining whether the indoor ambient temperature or the outdoor ambient temperature is less than a lower limit temperature.

[0067] Here, the lower limit temperature can be pre-set in the control system of the heat pump heater 1, and is used as the lower limit critical temperature of the heat pump heater 1 when entering cooling, so as to avoid the heat pump heater 1 from cooling when the ambient temperature is low, and ensure the operation safety of the heat pump heater 1 and the comfort of the indoor environment. When the indoor ambient temperature or the outdoor ambient temperature is greater than or equal to the lower limit temperature, the heat pump heater 1 is allowed to start cooling; when the indoor ambient temperature or the outdoor ambient temperature is less than the lower limit temperature, the heat pump heater 1 is not allowed to start cooling.

[0068] In some examples, only the lower limit temperature of the inner loop may be set, that is, the temperature-reaching start / switch control is performed only according to the indoor ambient temperature. In other examples, only the lower limit temperature of the outer loop may be set, that is, the temperature-reaching start / switch control is performed only according to the outdoor ambient temperature.

[0069] S242: In response to determining that the indoor ambient temperature or the outdoor ambient temperature is greater than or equal to the lower limit temperature, the heat pump heater 1 is controlled to switch from the heating operation to the cooling operation.

[0070] When it is determined that the indoor ambient temperature or the outdoor ambient temperature is greater than the lower limit temperature, it means that the temperature switching control condition is met, and the heat pump heater 1 can be controlled to switch from heating operation to cooling operation. In some examples, only the lower limit temperature of the inner loop can be set, that is, the temperature switching control is performed only according to the indoor ambient temperature; here, when it is determined that the indoor ambient temperature is greater than the lower limit temperature of the inner loop, the cold pump heater can be controlled to switch from heating operation to cooling operation. In other examples, only the lower limit temperature of the outer loop can be set, that is, the temperature switching control is performed only according to the outdoor ambient temperature; here, when it is determined that the outdoor ambient temperature is greater than the lower limit temperature of the outer loop, the cold pump heater can be controlled to switch from heating operation to cooling operation.

[0071] S243: In response to determining that the indoor ambient temperature or the outdoor ambient temperature is less than the lower limit temperature, ignoring the hot-cold switching instruction.

[0072] When it is determined that the indoor ambient temperature or the outdoor ambient temperature is lower than the lower limit temperature, it means that the temperature switching control condition is not met, the hot and cold switching instruction can be ignored, and the heat pump heater 1 is controlled to maintain heating operation or enter a shutdown state.

[0073] In some examples, only the lower limit temperature of the inner loop may be set, that is, the temperature switching control is performed only according to the indoor ambient temperature; here, when it is determined that the indoor ambient temperature is less than the lower limit temperature of the inner loop, the hot and cold switching instruction may be ignored. In other examples, only the lower limit temperature of the outer loop may be set, that is, the temperature switching control is performed only according to the outdoor ambient temperature; here, when it is determined that the outdoor ambient temperature is less than the lower limit temperature of the outer loop, the hot and cold switching instruction may be ignored.

[0074] In some embodiments, S30 may include S31 to S34.

[0075] S31: In response to the target control instruction being a heating start instruction, the heat pump heater 1 is controlled to start and perform heating operation.

[0076] S32: In response to the target control instruction being a cooling start instruction, the heat pump heater 1 is controlled to start and perform cooling operation.

[0077] S33: In response to the target control instruction being a cooling / heating switching instruction, the heat pump heater 1 is controlled to switch from cooling operation to heating operation.

[0078] S34: In response to the target control instruction being the heating-cooling switching instruction, the heat pump heater 1 is controlled to switch from the heating operation to the cooling operation.

[0079] In a second aspect, an embodiment of the present application provides a heat pump heater control device, which includes a pre-judgment circuit and a start-up control circuit. The pre-judgment circuit is configured to determine the size relationship between the refrigerant temperature of the heat pump heater 1 and the indoor ambient temperature in response to the heat pump heater 1 receiving a start-up instruction. The start-up control circuit is configured to perform the following operations: in response to determining that the absolute value of the temperature difference between the refrigerant temperature and the indoor ambient temperature is less than or equal to a first temperature difference threshold, control the heat pump heater 1 to start according to the indoor ambient temperature; in response to determining that the refrigerant temperature is lower than the indoor ambient temperature and the absolute value of the temperature difference between the refrigerant temperature and the indoor ambient temperature is greater than the first temperature difference threshold, control the heat pump heater 1 to start.

[0080] like Figure 6 As shown, in a third aspect, an embodiment of the present application provides a heat pump heater 1, which includes a processor 10 and a memory 20. The memory 20 stores a computer program, which, when executed by the processor 10, implements a heat pump heater control method as provided in any of the above embodiments.

[0081] The processor 10 is connected to the memory 20, and can perform various actions and processes according to the program stored in the memory 20. Specifically, the processor 10 can be an integrated circuit chip with signal processing capabilities. The above-mentioned processor 10 can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, and can implement or execute the various methods, steps and logic block diagrams disclosed in the embodiments of the present application. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc., which can be an X86 architecture or an ARM architecture.

[0082] The memory 20 may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example but not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronously linked dynamic random access memory (SLDRAM), and direct memory bus random access memory (DRRAM). It should be noted that the memory 20 of the method described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0083] In some embodiments, the heat pump heater 1 may include a first temperature sensor and a second temperature sensor. The first temperature sensor is used to detect the refrigerant temperature of the heat pump heater 1, and the second temperature sensor is used to detect the indoor environment temperature.

[0084] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium on which a computer program is stored. The computer program is loaded by the processor 10 to execute the steps in the control method of any of the above embodiments.

[0085] Exemplarily, the above-mentioned computer-readable storage media may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks or magnetic tapes, etc.), optical disks (e.g., CDs (Compact Disks), DVDs (Digital Versatile Disks), etc.), smart cards and flash memory devices (e.g., EPROMs (Erasable Programmable Read-Only Memory), cards, sticks or key drives, etc.). The various computer-readable storage media described in the embodiments of the present application may represent one or more devices and / or other machine-readable storage media for storing information. The term "machine-readable storage medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing and / or carrying instructions and / or data.

[0086] The above is a detailed introduction to a heat pump heating machine and its control method, device, and computer-readable storage medium provided in the embodiments of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for technical personnel in this field, according to the ideas of the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A heat pump heating machine control method, characterized in that: include: In response to the heat pump heating machine receiving the target control instruction, determining the magnitude relationship between the refrigerant temperature of the heat pump heating machine and the indoor environment temperature; In response to determining that the absolute value of the temperature difference between the refrigerant temperature and the indoor ambient temperature is less than or equal to a first temperature difference threshold, determining whether to control the heat pump heating machine to execute the target control action corresponding to the target control instruction according to the indoor ambient temperature or the outdoor ambient temperature; In response to determining that the brine temperature is lower than the indoor ambient temperature and the absolute value of the temperature difference between the brine temperature and the indoor ambient temperature is greater than the first temperature difference threshold, controlling the heat pump heating machine to execute the target control action corresponding to the target control instruction; The target control instruction is one of a heating start instruction, a cooling start instruction, a hot-cold switching instruction, and a hot-cold switching instruction.

2. The heat pump heating machine control method according to claim 1, characterized in that: Determining whether to control the heat pump heater to execute the target control action corresponding to the target control instruction according to the indoor ambient temperature or the outdoor ambient temperature includes: In response to the target control instruction being a heating start instruction, determining whether the indoor ambient temperature or the outdoor ambient temperature is greater than an upper limit temperature; In response to determining that the indoor ambient temperature or the outdoor ambient temperature is less than or equal to the upper limit temperature, controlling the heat pump heater to start and perform heating operation; In response to determining that the indoor ambient temperature or the outdoor ambient temperature is greater than an upper limit temperature, the heating start instruction is ignored.

3. The heat pump heating machine control method according to claim 1, characterized in that: Determining whether to control the heat pump heater to execute the target control action corresponding to the target control instruction according to the indoor ambient temperature or the outdoor ambient temperature includes: In response to the target control instruction being a cooling start instruction, determining whether the indoor ambient temperature or the outdoor ambient temperature is less than a lower limit temperature; In response to determining that the indoor ambient temperature or the outdoor ambient temperature is greater than or equal to a lower limit temperature, controlling the heat pump heater to start and perform cooling operation; In response to determining that the indoor ambient temperature or the outdoor ambient temperature is less than a lower limit temperature, the start cooling instruction is ignored, and the upper limit temperature is greater than the lower limit temperature.

4. The heat pump heating machine control method according to claim 1, characterized in that: Determining whether to control the heat pump heater to execute the target control action corresponding to the target control instruction according to the indoor ambient temperature or the outdoor ambient temperature includes: In response to the target control instruction being a cooling / heating switching instruction, determining whether the indoor ambient temperature or the outdoor ambient temperature is greater than an upper limit temperature; In response to determining that the indoor ambient temperature or the outdoor ambient temperature is less than or equal to an upper limit temperature, controlling the heat pump heater to switch from cooling operation to heating operation; In response to determining that the indoor ambient temperature or the outdoor ambient temperature is greater than an upper limit temperature, the cooling / heating switching instruction is ignored.

5. The heat pump heating machine control method according to claim 1, characterized in that: Determining whether to control the heat pump heater to execute the target control action corresponding to the target control instruction according to the indoor ambient temperature or the outdoor ambient temperature includes: In response to the target control instruction being a heat-cool switch instruction, determining whether the indoor ambient temperature or the outdoor ambient temperature is less than a lower limit temperature; In response to determining that the indoor ambient temperature or the outdoor ambient temperature is greater than or equal to a lower limit temperature, controlling the heat pump heater to switch from a heating operation to a cooling operation; In response to determining that the indoor ambient temperature or the outdoor ambient temperature is less than a lower limit temperature, the heating and cooling switching instruction is ignored.

6. The heat pump heating machine control method according to claim 1, characterized in that: Controlling the heat pump heating machine to execute the target control action corresponding to the target control instruction includes: In response to the target control instruction being a heating start instruction, controlling the heat pump heater to start and perform heating operation; In response to the target control instruction being a cooling start instruction, controlling the heat pump heater to start and perform cooling operation; In response to the target control instruction being a cooling / heating switching instruction, controlling the heat pump heater to switch from cooling operation to heating operation; In response to the target control instruction being a heating-cooling switching instruction, the heat pump heater is controlled to switch from heating operation to cooling operation.

7. A heat pump heating machine control device, characterized in that: include: A pre-judgment circuit is configured to determine the magnitude relationship between the refrigerant temperature of the heat pump heating machine and the indoor environment temperature in response to the heat pump heating machine receiving a start instruction; The startup control circuit is configured to perform the following operations: In response to determining that the absolute value of the temperature difference between the refrigerant temperature and the indoor ambient temperature is less than or equal to a first temperature difference threshold, controlling the heat pump heating machine to start according to the indoor ambient temperature; In response to determining that the brine temperature is lower than the indoor ambient temperature and the absolute value of the temperature difference between the brine temperature and the indoor ambient temperature is greater than a first temperature difference threshold, the heat pump heating machine is controlled to start.

8. A heat pump heating machine, characterized in that: include: a memory storing a computer program; A processor, wherein when the computer program is executed by the processor, the heat pump heating machine control method according to any one of claims 1 to 6 is implemented.

9. The heat pump heater according to claim 8, characterized in that: The heat pump heater comprises a first temperature sensor and a second temperature sensor, wherein the first temperature sensor is used to detect the refrigerant temperature of the heat pump heater, and the second temperature sensor is used to detect the indoor environment temperature.

10. A computer-readable storage medium, characterized in that: A computer program is stored thereon, and the computer program is loaded by a processor to execute the steps in the heat pump heating machine control method according to any one of claims 1 to 6.

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