Control method of environment adjusting equipment, environment adjusting equipment and storage medium

Abstract

The invention discloses a control method of environment adjusting equipment, the environment adjusting equipment and a storage medium. The method comprises the steps that when environment adjusting equipment operates to meet preset conditions in a heat exchange mode, the set temperature of end equipment and / or the target secondary refrigerant temperature of a heat pump system are / is adjusted so as to reduce energy consumption of the environment adjusting equipment, and the environment adjusting equipment is controlled to operate according to the adjusted target secondary refrigerant temperature and / or the adjusted set temperature; when the environment adjusting equipment operates to the target moment, the set temperature of the end equipment and / or the target secondary refrigerant temperature of the heat pump system are / is adjusted to improve the heat exchange amount of the end equipment, and the environment adjusting equipment is controlled to operate according to the adjusted target secondary refrigerant temperature and / or the adjusted set temperature; the preset condition indicates that no user exists in the indoor space adjusted by the end equipment, and the target moment is earlier than the initial moment when the user exists in the indoor space. The matching degree of the indoor environment state and the comfort requirement of the user when the user returns to the indoor space is improved.

Description

Technical Field

[0001] This invention relates to the field of environmental technology, and more particularly to control methods for environmental control equipment, environmental control equipment, and storage media. Background Technology

[0002] Environmental control equipment (such as radiant air conditioners) will be equipped with a heat pump system and a refrigerant circulation system that exchanges heat with the heat pump system. Terminal equipment will be installed in the refrigerant circulation system to exchange heat with the indoor air.

[0003] Currently, when users leave the indoor space, the environmental control equipment operates in an energy-saving manner. The target refrigerant temperature and the set temperature of the terminal equipment in the heat pump system are fixed. This results in the indoor space not reaching the user's comfort level for a long time after the user returns, affecting the user's comfort. Summary of the Invention

[0004] The main objective of this invention is to provide a control method, an environmental control device, and a storage medium for an environmental control device, aiming to improve the matching degree between the indoor environmental state and the user's comfort needs when the user returns to the indoor space.

[0005] To achieve the above objectives, the present invention provides a control method for an environmental conditioning device, the environmental conditioning device including a heat pump system and a refrigerant circulation system connected to the heat pump system for heat exchange, the refrigerant circulation system including terminal equipment, and the control method for the environmental conditioning device including the following steps:

[0006] When the environmental conditioning equipment operates in heat exchange mode to meet the preset conditions, the current set temperature of the terminal equipment and / or the current target refrigerant temperature of the heat pump system are adjusted to reduce the energy consumption of the environmental conditioning equipment, and the operation of the environmental conditioning equipment is controlled according to the adjusted target refrigerant temperature and / or set temperature.

[0007] When the environmental control equipment reaches the target time, the current set temperature of the terminal equipment and / or the current target refrigerant temperature of the heat pump system are adjusted to increase the heat exchange of the terminal equipment, and the operation of the environmental control equipment is controlled according to the adjusted target refrigerant temperature and / or set temperature.

[0008] The preset condition indicates that there are no users in the indoor space adjusted by the terminal device, and the target time is earlier than the initial time when there are users in the indoor space.

[0009] Optionally, in the heat exchange mode, the terminal device is in a heating state, and the step of adjusting the current set temperature of the terminal device and / or the current target refrigerant temperature of the heat pump system to reduce the energy consumption of the environmental control equipment includes:

[0010] Lower the current set temperature of the terminal device to the first set temperature;

[0011] The step of adjusting the current target refrigerant temperature of the refrigerant circulation system and the current set temperature of the terminal equipment to increase the heat exchange capacity of the terminal equipment includes:

[0012] Increase the current set temperature of the terminal device to a second set temperature;

[0013] Wherein, the first set temperature is lower than the second set temperature.

[0014] Optionally, in the heat exchange mode, the terminal device is in a heating state, and the step of adjusting the current set temperature of the terminal device and / or the current target refrigerant temperature of the heat pump system to reduce the energy consumption of the environmental control equipment includes:

[0015] The target refrigerant temperature of the heat pump system is limited to be less than or equal to a first preset temperature;

[0016] The step of adjusting the current set temperature of the terminal device and / or the current target refrigerant temperature of the refrigerant circulation system to increase the heat exchange capacity of the terminal device includes:

[0017] The target refrigerant temperature of the heat pump system is limited to be less than or equal to a second preset temperature;

[0018] Wherein, the first preset temperature is less than the second preset temperature.

[0019] Optionally, the control method for the environmental control equipment further includes:

[0020] The reference value for the target refrigerant temperature of the heat pump system is determined based on the ambient temperature of the indoor space and the current set temperature of the terminal device.

[0021] The step of limiting the target refrigerant temperature of the refrigerant circulation system to be less than or equal to a first preset temperature includes:

[0022] When the reference value is less than the first preset temperature, the reference value is determined to be the target refrigerant temperature;

[0023] When the reference value is greater than or equal to the first preset temperature, the first preset temperature is determined to be the target refrigerant temperature.

[0024] Optionally, the control method for the environmental control equipment further includes:

[0025] The reference value for the target refrigerant temperature of the heat pump system is determined based on the ambient temperature of the indoor space and the current set temperature of the terminal device.

[0026] The step of limiting the target refrigerant temperature of the heat pump system to be less than or equal to a second preset temperature includes:

[0027] When the reference value is less than the second preset temperature, the reference value is determined to be the target refrigerant temperature;

[0028] When the reference value is greater than or equal to the second preset temperature, the second preset temperature is determined as the target refrigerant temperature.

[0029] Optionally, the number of terminal devices is at least two, and different terminal devices are located in different indoor spaces. The step of determining the reference value of the heat pump system based on the ambient temperature of the indoor space and the current set temperature of the terminal device includes:

[0030] Determine a first temperature difference value between the ambient temperature of each indoor space and the corresponding set temperature;

[0031] The sub-target refrigerant temperature of the terminal device in each of the indoor spaces is determined according to the first temperature difference value.

[0032] The reference value is determined based on at least two of the sub-target refrigerant temperatures.

[0033] Optionally, the step of determining the sub-target refrigerant temperature of the terminal device in each of the indoor spaces based on the first temperature difference value includes:

[0034] When the first temperature difference value is greater than the first preset temperature difference, the target value of the current refrigerant temperature of the corresponding terminal device is reduced to obtain the corresponding sub-target refrigerant temperature.

[0035] When the first temperature difference is less than the second preset temperature difference, the target value of the current refrigerant temperature of the corresponding terminal device is increased to obtain the corresponding sub-target refrigerant temperature.

[0036] When the first temperature difference is greater than or equal to the second preset temperature difference and less than or equal to the first preset temperature difference, the target value of the current refrigerant temperature of the corresponding terminal device is determined to be the corresponding sub-target refrigerant temperature.

[0037] Wherein, the first preset temperature is greater than the second preset temperature difference.

[0038] Optionally, the heat pump system includes at least two indoor units, each corresponding to one of the terminal devices, and the step of determining the reference value based on at least two of the sub-target refrigerant temperatures includes:

[0039] When the environmental control equipment operates in heat exchange mode until it meets the preset conditions but has not reached the target time, the total rated capacity of all indoor units is determined.

[0040] The weight value of the sub-target refrigerant temperature of each terminal device is determined according to the ratio of the rated capacity of each indoor unit to the total rated capacity.

[0041] The reference value is determined based on at least two of the sub-target refrigerant temperatures and their corresponding weight values.

[0042] Optionally, in the heat exchange mode, the terminal device is in a heating state, and the step of determining the reference value based on at least two of the sub-target refrigerant temperatures includes:

[0043] When the environmental conditioning equipment operates in the heat exchange mode to the target time, the reference value is determined based on the maximum value among all sub-target refrigerant temperatures.

[0044] Optionally, the refrigerant circulation system includes at least two terminal devices and at least two control valves, each control valve corresponding to one of the terminal devices. The control valves are used to adjust the refrigerant flow rate of the corresponding terminal device. Different terminal devices regulate different indoor spaces. The step of controlling the operation of the environmental conditioning equipment according to the adjusted set temperature includes:

[0045] The corresponding control valves are operated based on the ambient temperature of each indoor space and the adjusted set temperature.

[0046] Optionally, in the heat exchange mode, the terminal device is in heating mode, and the step of controlling the operation of the control valve according to the ambient temperature of each indoor space and the adjusted set temperature includes:

[0047] Determine a second temperature difference between each ambient temperature and the set temperature of the corresponding indoor space's terminal equipment after adjustment;

[0048] When the second temperature difference is greater than or equal to the third preset temperature difference, the corresponding control valve is closed.

[0049] When the second temperature difference is less than the fourth preset temperature difference, the corresponding control valve is opened;

[0050] Wherein, the fourth preset temperature difference is less than or equal to the third preset temperature difference.

[0051] Optionally, the heat pump system includes an indoor unit, the environmental control device further includes a fresh air system for regulating the indoor space, and the control method of the environmental control device further includes:

[0052] When the environmental control equipment operates in heat exchange mode until the preset conditions are met, the indoor unit is controlled to shut down, and the fresh air system is controlled to stop supplying air to the indoor space.

[0053] When the environmental control equipment reaches the target time, it controls the fresh air system to supply air to the indoor space.

[0054] In addition, to achieve the above objectives, this application also proposes an environmental control device, which includes a control device, a heat pump system, and a refrigerant circulation system connected to the heat pump system for heat exchange, wherein the refrigerant circulation system includes terminal equipment.

[0055] The control device includes: a memory, a processor, and a control program for an environmental control device stored in the memory and executable on the processor. When the control program for the environmental control device is executed by the processor, it implements the steps of the control method for the environmental control device as described in any of the preceding claims.

[0056] In addition, to achieve the above objectives, this application also proposes a storage medium storing a control program for an environmental control device, wherein the control program for the environmental control device, when executed by a processor, implements the steps of the control method for the environmental control device as described in any of the preceding claims.

[0057] This invention proposes a control method for an environmental conditioning device. In this method, when the environmental conditioning device operates in heat exchange mode until the user is no longer in the indoor space, the set temperature of the terminal device and / or the target refrigerant temperature of the heat pump system are adjusted to achieve energy-saving operation of the environmental conditioning device. When the environmental conditioning device reaches the target moment when the user is about to return to the indoor space, the heat exchange capacity of the environmental conditioning device is increased by adjusting the set temperature of the terminal device and / or the target refrigerant temperature of the heat pump system. During the user's departure from the indoor space, the target refrigerant temperature of the heat pump system and / or the set temperature of the terminal device are no longer fixed. While meeting energy-saving requirements, the heat exchange capacity is increased in advance before the user returns so that the indoor environment can change towards a user-comfortable state, thereby effectively improving the matching degree between the indoor environment state and the user's comfort needs when the user returns to the indoor space. Attached Figure Description

[0058] Figure 1 This is a schematic diagram of the system structure of an embodiment of the environmental control device of the present invention;

[0059] Figure 2 This is a schematic diagram of the system structure of another embodiment of the environmental control device of the present invention;

[0060] Figure 3 This is a schematic diagram of the hardware structure involved in the operation of an embodiment of the environmental control device of the present invention;

[0061] Figure 4 This is a flowchart illustrating an embodiment of the control method for the environmental conditioning equipment of the present invention;

[0062] Figure 5 This is a flowchart illustrating another embodiment of the control method for the environmental conditioning equipment of the present invention;

[0063] Figure 6 This is a flowchart illustrating another embodiment of the control method for the environmental conditioning equipment of the present invention.

[0064] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0065] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0066] This invention provides an environmental control device.

[0067] In this embodiment of the invention, reference is made to Figure 1 and Figure 2 The environmental control equipment includes a control device 1, a heat pump temperature control system 10, and a fresh air system 20. Both the heat pump temperature control system 10 and the fresh air system 20 are connected to the control device 1. The heat pump temperature control system 10 includes a heat pump system 2 and a refrigerant circulation system 3 connected to the heat pump system 2. Both the heat pump system 2 and the refrigerant circulation system 3 are connected to the control device 1. The refrigerant circulation system 3 includes a terminal device 31, which is used to regulate the indoor space using the energy (cooling or heating) of the heat pump system 2.

[0068] The heat pump temperature control system 10 is used to regulate indoor ambient temperature and / or humidity. The fresh air system 20 is used to introduce fresh air and filter and purify it, thereby improving indoor air quality.

[0069] The fresh air system 20 is used to regulate the air in more than one indoor space. In other embodiments, the fresh air system 20 can be used to regulate the air in one indoor space.

[0070] The refrigerant circulation system 3 circulates the refrigerant, delivering the energy output from the heat pump system 2 to the indoor space to regulate its temperature. The heat pump system 2 provides energy (such as cooling or heating) for the heat exchange between the refrigerant circulation system 3 and the indoor space.

[0071] In this embodiment, the refrigerant circulation system 3 is a water system, and the heat pump system 2 is used to regulate the supply water temperature of the refrigerant circulation system 3. The refrigerant circulation system 3 can regulate the indoor temperature using the terminal device 31. In this embodiment, the supply water temperature of the refrigerant circulation system 3 can be understood as the outlet water temperature of the heat pump system 2. In other embodiments, the refrigerant circulation system 3 can also be a system that uses a refrigerant to transfer energy, such as an ethanol solution.

[0072] In this embodiment, the heat pump system 2 is an air source heat pump system 2. In other embodiments, the heat pump system 2 may also be a water source heat pump system, a ground source heat pump system, or a dual-source heat pump system, etc.

[0073] The refrigerant circulation system 3 includes a medium circulation loop, a terminal device 31 located in the medium circulation loop, and a heat exchange module. The heat exchange module is connected to the heat pump system 2 for heat exchange. The medium circulation loop has an inlet and an outlet. The inlet of the medium circulation loop is connected to the outlet of the heat exchange module, and the outlet of the medium circulation loop is connected to the inlet of the heat exchange module. The cooling or heating capacity of the refrigerant in the medium circulation loop can be released into the indoor space where the terminal device 31 is located.

[0074] The terminal device 31 can be one or more, and the multiple terminal devices 31 can be distributed in different indoor spaces. The heat exchange types of the terminal devices 31 in different indoor spaces can be the same or different. Based on this, the cold or heat carried by the medium in the medium circulation loop can be used to regulate the ambient temperature of more than one indoor space.

[0075] In this embodiment, the terminal device 31 includes radiant terminal devices, such as underfloor heating coils, radiant panels, capillary networks, etc., which can be installed on the walls (including walls and / or floors and / or ceilings) of the indoor space. In other embodiments, the terminal device 31 can also be a convection heat exchange device. For example, the terminal device 31 may include a fan coil unit, etc. Each indoor space can be equipped with more than one type of terminal device 31; for example, each indoor space can be equipped with both radiant terminal devices and convection heat exchange devices.

[0076] In this embodiment, the heat pump system 2 includes a refrigerant circulation loop, which includes a compressor, a first heat exchanger, a throttling device, and a second heat exchanger. The second heat exchanger is connected to the heat exchange module in the refrigerant circulation system 3. The second heat exchanger and the heat exchange module can be a shell-and-tube heat exchanger or a plate heat exchanger.

[0077] The heat pump system 2 can operate in two modes: cooling mode and heating mode. When the heat pump system 2 is operating in cooling mode, the second heat exchanger is in an evaporating state to absorb heat, and when the heat pump system 2 is operating in heating mode, the second heat exchanger is in a condensing state to release heat.

[0078] During the operation of heat pump system 2, the water in the heat exchange module absorbs the cold or heat released by the second heat exchanger to form chilled or hot water. The medium carrying the cold or heat flowing out of the heat exchange module can enter the medium circulation loop and flow to the terminal device 31 to release the cold or heat into the air of the indoor space to regulate the ambient temperature of the indoor space. The medium that has released the cold or heat can re-enter the heat exchange module to exchange heat with the second heat exchanger, and the medium after heat exchange can re-enter the medium circulation loop to exchange heat again. This cycle continues, thereby realizing the regulation of the indoor space temperature by the heat pump temperature control system.

[0079] When the heat pump system 2 is running in cooling mode, the second heat exchanger is in an evaporation state. The medium in the heat exchange module absorbs the cold energy output by the second heat exchanger and its temperature decreases to form a medium carrying the cold energy. The medium carrying the cold energy enters the medium circulation loop and flows to the terminal device 31, releasing the cold energy into the indoor space, and the ambient temperature of the indoor space decreases.

[0080] When the heat pump system 2 is in heating mode, the second heat exchanger is in a condensing state. The medium in the heat exchange module absorbs the heat output by the second heat exchanger and its temperature rises to form a heat-carrying medium. The heat-carrying medium enters the medium circulation loop and flows to the terminal device 31, releasing heat into the indoor space and raising the ambient temperature of the indoor space.

[0081] Furthermore, refer to Figure 1 The refrigerant circulation system 3 also includes a fluid regulation module 32, which is connected to the control device 1. The fluid regulation module 32 can be used to regulate the distribution, flow rate regulation, and control of the supply and return liquid in the refrigerant circulation system 3. Specifically, the heat exchange module and the terminal devices 31 are both connected to the fluid regulation module 32. In this embodiment, there are at least two terminal devices 31, and both the at least two terminal devices 31 and the heat exchange module are connected to the fluid regulation module 32. The fluid regulation module 32 includes at least two control valves, which are connected one-to-one with the terminal devices 31. In this embodiment, the fluid regulation module is a manifold. In other embodiments, the fluid regulation module 32 can also be a circulation pump.

[0082] In another implementation of the environmental control device according to an embodiment of the present invention, refer to... Figure 2 The heat pump system 2 may also include an indoor unit 21, which is connected in parallel with the second heat exchanger described above. In this embodiment, the indoor unit 21 is a ducted indoor unit, which includes an indoor heat exchanger and a corresponding indoor fan.

[0083] In this embodiment, the heat pump system 2 includes at least two indoor units 21, which can be installed in different indoor spaces. Each indoor space is provided with at least one indoor unit 21 and at least one terminal device 31.

[0084] When the heat pump system 2 is in heating mode, both the second heat exchanger and the indoor unit 21 that is turned on are in a heat-releasing state; when the heat pump system 2 is in cooling mode, both the second heat exchanger and the indoor unit 21 that is turned on are in a heat-absorbing state.

[0085] In this embodiment of the invention, the fresh air system 20 includes a fresh air duct, an exhaust air duct, and a heat pump subsystem. The heat pump subsystem includes a compressor, a third heat exchanger, a throttling device, and a fourth heat exchanger. The third and fourth heat exchangers are respectively connected to the exhaust port and the return port of the compressor. The third heat exchanger, the throttling device, and the fourth heat exchanger are connected in sequence.

[0086] Fresh air ducts and exhaust air ducts can be equipped with separate fans. When the fan in the fresh air duct is turned on, it can drive fresh outdoor air into the room, and when the fan in the exhaust air duct is turned on, it can drive indoor air out to the outside.

[0087] The third and / or fourth heat exchangers can be installed in the fresh air duct to regulate the temperature and / or humidity of the fresh air.

[0088] One of the third and fourth heat exchangers can be installed in the exhaust duct to recover and utilize the energy in the exhaust air.

[0089] Furthermore, there may be more than one heat pump subsystem, with the third and / or fourth heat exchangers in different heat pump subsystems arranged along the airflow direction in the fresh air duct.

[0090] In other embodiments, the fresh air system 20 may also not include an exhaust duct and / or a heat pump subsystem.

[0091] Furthermore, when the fresh air system 20 is used to regulate more than one indoor space, the fresh air system 20 may also include more than one valve assembly, with each valve assembly corresponding to one indoor space. The valve assembly can be used to regulate the opening and closing of the air duct between the corresponding indoor space and the outdoor environment. When the valve assembly is open, outdoor fresh air can enter the corresponding indoor space, and the air in the corresponding indoor space can be exhausted to the outside; when the valve assembly is closed, outdoor fresh air stops entering the corresponding indoor space, and the air in the corresponding indoor space stops being exhausted to the outside.

[0092] Furthermore, in this embodiment, referring to Figure 3 The control device 1 can also be connected to the environmental detection module 5. The environmental detection module 5 can include indoor sensors and / or outdoor sensors. The indoor sensors can detect the environmental parameters (temperature, humidity, enthalpy, etc.) of the indoor space regulated by the environmental control equipment; the outdoor temperature sensor can detect the environmental parameters (temperature, humidity, enthalpy, etc.) of the outdoor space where the device is located.

[0093] In this embodiment of the invention, reference is made to Figure 3The control device 1 of the environmental control equipment includes: a processor 1001, such as a CPU, a memory 1002, and a timer 1003. These components communicate with each other via a communication bus. The memory 1002 can be a high-speed RAM or a stable, non-volatile memory, such as a disk drive. Optionally, the memory 1002 can also be a storage device independent of the aforementioned processor 1001.

[0094] Those skilled in the art will understand that Figure 3 The device structure shown does not constitute a limitation on the device and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0095] like Figure 3 As shown, the memory 1002, which serves as a computer storage medium, may include a control program for an environmental control device.

[0096] exist Figure 3 In the device shown, the processor 1001 can be used to call the control program of the environmental control device stored in the memory 1002 and execute the relevant steps of the control method of the environmental control device in the following embodiments.

[0097] This invention also provides a control method for an environmental control device, which is applied to the aforementioned environmental control device.

[0098] Reference Figure 4 This application proposes an embodiment of a control method for an environmental conditioning device. In this embodiment, the control method for the environmental conditioning device includes:

[0099] Step S10: When the environmental conditioning device operates in heat exchange mode until the preset conditions are met, the current set temperature of the terminal device and / or the current target refrigerant temperature of the heat pump system are adjusted to reduce the energy consumption of the environmental conditioning device. The operation of the environmental conditioning device is controlled according to the adjusted target refrigerant temperature and / or the set temperature. The preset conditions indicate that there are no users in the indoor space regulated by the terminal device.

[0100] The heat exchange mode includes either a cooling mode or a heating mode. In this embodiment, the heat exchange mode is a heating mode, in which the terminal device is in a heating state.

[0101] In this embodiment, the target refrigerant temperature is the target value of the outlet liquid temperature of the heat exchange module, and the set temperature is the target value of the ambient temperature of the environment where the terminal device is located.

[0102] The environmental control equipment can be considered to meet the preset conditions when it operates under at least one of the following conditions: receiving a user's input command to leave, the current time of the air conditioner reaches the user's set departure time, and no human-related feature information is found in the environmental detection parameters of the indoor space, etc.

[0103] Adjusting the set temperature can include one of the following: decreasing the set temperature, increasing the set temperature, limiting the set temperature to a preset temperature range, etc.

[0104] Adjusting the target refrigerant temperature may include one of the following: decreasing the target refrigerant temperature, increasing the target refrigerant temperature, limiting the target refrigerant temperature to a preset temperature range, etc.

[0105] In different heat exchange modes, the set temperature and target refrigerant temperature can be adjusted in different ways to achieve energy-saving effects for the environmental control equipment under different heat exchange modes. In heating mode, the set temperature can be reduced, and / or the target refrigerant temperature can be lowered, or the target refrigerant temperature can be limited to be lower than a first temperature; in cooling mode, the set temperature can be increased, and / or the target refrigerant temperature can be increased, or the target refrigerant temperature can be limited to be higher than a second temperature.

[0106] The heat pump system and / or refrigerant circulation system are controlled based on the adjusted target refrigerant temperature and / or set temperature. Controlled parameters may include, but are not limited to: compressor frequency, fan speed, operating parameters of the fluid regulation module, opening degree of the electronic expansion valve, etc. Here, both the heat pump system and / or the refrigerant system are regulated with the goal of achieving the adjusted set temperature in the indoor space and / or the refrigerant temperature flowing out of the heat exchange module or into the terminal equipment reaching the adjusted target refrigerant temperature.

[0107] The refrigerant circulation system includes at least two terminal devices. When different terminal devices are located in different indoor spaces, if some indoor spaces meet the preset conditions and some indoor spaces do not meet the preset conditions, the set temperature and / or sub-target refrigerant temperature of the terminal devices in the indoor spaces that meet the preset conditions are adjusted. The operation of the corresponding terminal devices and / or the components corresponding to the terminal devices is controlled according to the adjusted set temperature. And / or, a new target refrigerant temperature for the heat pump system is determined according to the adjusted sub-target refrigerant temperature of the indoor spaces that meet the preset conditions and the sub-target refrigerant temperature of the indoor spaces that do not meet the preset conditions. The operation of the environmental conditioning equipment is controlled according to the new target refrigerant temperature.

[0108] Step S20: When the environmental control device reaches the target time, adjust the current set temperature of the terminal device and / or the current target refrigerant temperature of the heat pump system to increase the heat exchange of the terminal device, and control the operation of the environmental control device according to the adjusted target refrigerant temperature and / or the set temperature; wherein, the target time is earlier than the initial time when the user is present in the indoor space.

[0109] The target time indicates when a user will be present in the indoor space. The target time can be a time entered by the user; it can also be determined based on the time the user enters to return to the indoor space, for example, the time with a preset interval from the user's input time can be used as the target time; it can also obtain the user's current first position and the current second position in the indoor space, determine the distance between the user and the indoor space based on the first and second positions, and use the time when the distance reaches a preset distance as the target time, and so on.

[0110] Adjusting the set temperature can include one of the following: decreasing the set temperature, increasing the set temperature, limiting the set temperature to a preset temperature range, etc.

[0111] Adjusting the target refrigerant temperature may include one of the following: decreasing the target refrigerant temperature, increasing the target refrigerant temperature, limiting the target refrigerant temperature to a preset temperature range, etc.

[0112] In different heat exchange modes, the set temperature and target refrigerant temperature can be adjusted in different ways to achieve the desired heat exchange capacity of the environmental control equipment. In heating mode, the set temperature can be increased, and / or the target refrigerant temperature can be increased, or the target refrigerant temperature can be limited to a third temperature. In cooling mode, the set temperature can be decreased, and / or the target refrigerant temperature can be decreased, or the target refrigerant temperature can be limited to a fourth temperature. Here, the third temperature is higher than the first temperature mentioned above, and the fourth temperature is lower than the second temperature mentioned above.

[0113] The first stage is defined as the period before the environmental control equipment reaches the target time after meeting the preset conditions. The second stage is defined as the period before the initial time when the user is present in the indoor space after the environmental control equipment reaches the target time. The energy consumption of the environmental control equipment in the first stage is less than that in the second stage, and the heat exchange of the environmental control equipment in the second stage is greater than that in the first stage.

[0114] The heat pump system and / or refrigerant circulation system are controlled based on the adjusted target refrigerant temperature and / or set temperature. Controlled parameters may include, but are not limited to: compressor frequency, fan speed, operating parameters of the fluid regulation module, opening degree of the electronic expansion valve, etc. Here, both the heat pump system and / or the refrigerant system are regulated with the goal of achieving the adjusted set temperature in the indoor space and / or the refrigerant temperature flowing out of the heat exchange module or into the terminal equipment reaching the adjusted target refrigerant temperature.

[0115] The refrigerant circulation system includes at least two terminal devices. When different terminal devices are located in different indoor spaces, if some indoor spaces meet the preset conditions and some indoor spaces do not meet the preset conditions, the set temperature and / or sub-target refrigerant temperature of the terminal devices in the indoor spaces that meet the preset conditions are adjusted. The operation of the corresponding terminal devices and / or the components corresponding to the terminal devices is controlled according to the adjusted set temperature. And / or, a new target refrigerant temperature for the heat pump system is determined according to the adjusted sub-target refrigerant temperature of the indoor spaces that meet the preset conditions and the sub-target refrigerant temperature of the indoor spaces that do not meet the preset conditions. The operation of the environmental conditioning equipment is controlled according to the new target refrigerant temperature.

[0116] This invention proposes a control method for an environmental conditioning device. In this method, when the environmental conditioning device operates in heat exchange mode until the user is no longer in the indoor space, the set temperature of the terminal device and / or the target refrigerant temperature of the heat pump system are adjusted to achieve energy-saving operation of the environmental conditioning device. When the environmental conditioning device reaches the target moment when the user is about to return to the indoor space, the heat exchange capacity of the environmental conditioning device is increased by adjusting the set temperature of the terminal device and / or the target refrigerant temperature of the heat pump system. During the user's departure from the indoor space, the target refrigerant temperature of the heat pump system and / or the set temperature of the terminal device are no longer fixed. While meeting energy-saving requirements, the heat exchange capacity is increased in advance before the user returns so that the indoor environment can change towards a user-comfortable state, thereby effectively improving the matching degree between the indoor environment state and the user's comfort needs when the user returns to the indoor space.

[0117] Furthermore, in this embodiment, the refrigerant circulation system includes at least two terminal devices and at least two control valves. The control valves are configured one-to-one with the terminal devices. The control valves are used to adjust the refrigerant flow rate of the corresponding terminal devices. Different terminal devices adjust different indoor spaces. The step of controlling the operation of the environmental conditioning device according to the adjusted set temperature includes: controlling the operation of the corresponding control valve according to the ambient temperature of each indoor space and the adjusted set temperature.

[0118] The operating parameters of each control valve are determined based on the ambient temperature of the corresponding indoor space and the set temperature of the corresponding terminal equipment. These operating parameters may include opening, closing, or the degree of opening.

[0119] In this embodiment, the terminal device is in heating mode in the heat exchange mode, and a second temperature difference value is determined between each ambient temperature and the set temperature of the terminal device in the corresponding indoor space after adjustment; when the second temperature difference value is greater than or equal to a third preset temperature difference, the corresponding control valve is closed; when the second temperature difference value is less than a fourth preset temperature difference, the corresponding control valve is opened; wherein, the fourth preset temperature difference is less than or equal to the third preset temperature difference.

[0120] The second temperature difference value is the difference between the ambient temperature and the adjusted set temperature. When the ambient temperature is lower than the adjusted set temperature, the second temperature difference value is less than 0. Based on this, when the second temperature difference value is greater than or equal to the third preset temperature difference, it indicates that the temperature of the corresponding indoor space is close to the set temperature, which is close to the user's comfort state. When the second temperature difference value is less than the fourth preset temperature difference, it indicates that the temperature of the corresponding indoor space deviates significantly from the set temperature, and the environment is too cold, which will cause user discomfort.

[0121] Each control valve is controlled according to a corresponding second temperature difference value. The opening degree of the control valve can be a preset fixed opening degree, or it can be determined according to the relationship between the second temperature difference value and a fourth preset temperature difference value. In other embodiments, the target opening degree of the corresponding control valve can also be calculated based on the second temperature difference value, and each control valve can be controlled to operate at the corresponding target opening degree.

[0122] It should be noted that the control valves of each indoor space with heat exchange needs are operated according to the corresponding ambient temperature and the adjusted set temperature; the control valves of indoor spaces without heat exchange needs are closed.

[0123] In this embodiment, it is beneficial to ensure that when the user is not in the indoor space, the heat exchange of the terminal equipment can be adjusted by controlling the valve, so as to ensure that the ambient temperature of each indoor space does not deviate significantly from the user's comfort state, which is conducive to further improving the user's comfort when returning to the indoor space.

[0124] In other embodiments, when the terminal device is in a cooling state in the heat exchange mode, the corresponding control valve is opened when the second temperature difference is greater than or equal to the fifth preset temperature difference; the corresponding control valve is closed when the second temperature difference is less than the sixth preset temperature difference, and the sixth preset temperature difference is less than the fifth preset temperature difference.

[0125] Furthermore, in this embodiment, the terminal device is in a heating state in the heat exchange mode. The step of adjusting the current set temperature of the terminal device and / or the current target refrigerant temperature of the heat pump system to reduce the energy consumption of the environmental control device includes: lowering the current set temperature of the terminal device to a first set temperature; the step of adjusting the current set temperature of the terminal device and / or the current target refrigerant temperature of the heat pump system to improve the heat exchange of the terminal device includes: raising the current set temperature of the terminal device to a second set temperature; wherein, the first set temperature is lower than the second set temperature.

[0126] The first and second set temperatures can be preset fixed temperatures, or temperatures determined based on an initial set temperature and a temperature adjustment value. For example, if the initial set temperature of the terminal device is defined as the temperature at which the environmental control equipment operates in heat exchange mode until preset conditions are met, then the first set temperature can be obtained by decreasing the initial set temperature according to a first temperature adjustment value, and the second set temperature can be obtained by increasing the first set temperature according to a second temperature adjustment value, where the second temperature adjustment value is less than or equal to the first temperature adjustment value. The second temperature adjustment value can also be determined based on the time interval between the target time and the initial time when a user is present in the indoor space.

[0127] Based on this, when the environmental control device operates in the heat exchange mode until the preset conditions are met, after the set temperature of the terminal device is adjusted to the first set temperature, the operation of the environmental control device can be controlled according to the first set temperature until the environmental control device operates to the target time, and the set temperature of the terminal device is adjusted from the first set temperature to the second set temperature, and the operation of the environmental control device is controlled according to the second set temperature.

[0128] In this embodiment, when the user is not in the indoor space and the terminal device is in heating mode, the terminal device first sets a lower set temperature, which can effectively reduce the heat output required by the environmental control device and reduce the energy consumption of the device. In the short period before the user returns to the indoor space, the terminal device then raises to a higher set temperature, so as to increase the heat output of the environmental control device and achieve a rapid increase in the indoor space temperature, ensuring that the indoor temperature is not too low when the user returns to the indoor space, and can be close to the user's comfort state.

[0129] Furthermore, in this embodiment, the terminal device is in a heating state in the heat exchange mode. The step of adjusting the current set temperature of the terminal device and / or the current target refrigerant temperature of the heat pump system to reduce the energy consumption of the environmental control device includes: limiting the target refrigerant temperature of the heat pump system to be less than or equal to a first preset temperature; the step of adjusting the current set temperature of the terminal device and / or the current target refrigerant temperature of the refrigerant circulation system to increase the heat exchange capacity of the terminal device includes: limiting the target refrigerant temperature of the heat pump system to be less than or equal to a second preset temperature; wherein, the first preset temperature is less than the second preset temperature.

[0130] The first preset temperature and the second preset temperature can be fixed temperatures that have been set in advance, or temperatures determined according to the set temperature of the terminal equipment in the corresponding stage.

[0131] Specifically, the target refrigerant temperature of the heat pump system in the first stage can be determined based on the actual operating conditions of the environmental control equipment within a temperature range less than or equal to the first preset temperature; and the target refrigerant temperature of the heat pump system in the second stage can be determined based on the actual operating conditions of the environmental control equipment within a temperature range less than or equal to the second preset temperature.

[0132] Based on this, when the environmental conditioning equipment operates in heat exchange mode to meet preset conditions, the first target refrigerant temperature of the heat pump system is determined based on the actual operating conditions of the environmental conditioning equipment within a temperature range less than or equal to the first preset temperature. The operation of the environmental conditioning equipment is then controlled based on the first target refrigerant temperature. If the environmental conditioning equipment has not reached the target time, the process can return to the steps of determining the first target refrigerant temperature of the heat pump system based on the actual operating conditions of the environmental conditioning equipment within a temperature range less than or equal to the first preset temperature, and controlling the operation of the environmental conditioning equipment based on the first target refrigerant temperature, until the environmental conditioning equipment reaches the target time. Then, the second target refrigerant temperature is determined based on the actual operating conditions of the environmental conditioning equipment within a temperature range less than or equal to the second preset temperature, and the operation of the environmental conditioning equipment is controlled based on the second target refrigerant temperature.

[0133] In this embodiment, when the user is not in the indoor space and the terminal device is operating in heating mode, the target refrigerant temperature of the heat pump system is first limited to a lower temperature, which can effectively reduce the heat output required by the environmental conditioning equipment and reduce equipment energy consumption. In the short period before the user returns to the indoor space, the target refrigerant temperature limit of the heat pump system is then increased, so that the heat output of the environmental conditioning equipment increases, achieving a rapid increase in the indoor space temperature, ensuring that the indoor temperature is not too low when the user returns to the indoor space, and can be close to the user's comfort state.

[0134] In other embodiments, the target refrigerant temperature of the heat pump system may be reduced to a first preset temperature in the first stage, and the target refrigerant temperature of the heat pump system may be increased to a second preset temperature in the second stage.

[0135] Furthermore, in this embodiment, adjusting the current set temperature of the terminal device and / or the current target refrigerant temperature of the heat pump system to reduce the energy consumption of the environmental control equipment includes: lowering the current set temperature of the terminal device to a first set temperature, and limiting the target refrigerant temperature of the heat pump system to be less than or equal to a first preset temperature. The step of adjusting the current set temperature of the terminal device and / or the current target refrigerant temperature of the refrigerant circulation system to increase the heat exchange capacity of the terminal device includes: raising the current set temperature of the terminal device to a second set temperature, and limiting the target refrigerant temperature of the heat pump system to be less than or equal to a second preset temperature.

[0136] When the environmental control equipment has not reached the target time, the operation of the environmental control equipment can be maintained at the first set temperature, and the target refrigerant temperature of the heat pump system can be limited to less than or equal to the first preset temperature. The first set temperature remains unchanged, and the target refrigerant temperature can be updated at set intervals.

[0137] In this embodiment, the above method further achieves an effective balance between energy saving when the user is not in the indoor space and comfort when the user returns to the indoor space.

[0138] Furthermore, based on the above embodiments, another embodiment of the control method for the environmental conditioning equipment of this application is proposed. In this embodiment, the control method for the environmental conditioning equipment further includes: determining a reference value for the target refrigerant temperature of the heat pump system based on the ambient temperature of the indoor space and the current set temperature of the terminal device.

[0139] In this embodiment, the current set temperature of the terminal device is the adjusted set temperature described above. In other embodiments, the current set temperature of the terminal device may also be a pre-stored set temperature.

[0140] In one implementation, there is one terminal device, and the reference value can be determined directly based on the ambient temperature and set temperature of the indoor space regulated by the terminal device.

[0141] In another implementation, the number of terminal devices is more than one. The sub-target refrigerant temperature for each indoor space can be determined based on the ambient temperature of the indoor space where each terminal device is located and the corresponding set temperature. The reference value here is determined based on the more than one sub-target refrigerant temperature.

[0142] The step of limiting the target refrigerant temperature of the refrigerant circulation system to be less than or equal to a first preset temperature includes: when the reference value is less than the first preset temperature, determining the reference value as the target refrigerant temperature; when the reference value is greater than or equal to the first preset temperature, determining the first preset temperature as the target refrigerant temperature.

[0143] The step of limiting the target refrigerant temperature of the heat pump system to be less than or equal to a second preset temperature includes: when the reference value is less than the second preset temperature, determining the reference value as the target refrigerant temperature; when the reference value is greater than or equal to the second preset temperature, determining the second preset temperature as the target refrigerant temperature.

[0144] In the first and second stages, the ambient temperature of the indoor space can be detected at set intervals. A reference value is determined based on the current ambient temperature and the set temperature. A new target refrigerant temperature is determined by combining the reference value and the first or second preset temperature in the above manner. The operation of the environmental conditioning equipment is controlled according to the determined new target refrigerant temperature.

[0145] In this embodiment, the reference value can accurately reflect the actual heat exchange demand of the indoor space. The final target refrigerant temperature of the heat pump system is determined by the relationship between the reference value and the first preset temperature or the second preset temperature, thereby ensuring that the heat exchange output of the heat pump system can effectively balance energy saving and indoor heat exchange demand during the period when the user is not in the indoor space.

[0146] In other embodiments, the reference value may also be determined based on other parameters, such as indoor ambient temperature and / or the temperature of the terminal device.

[0147] Furthermore, based on any of the above embodiments, another embodiment of the control method for the environmental conditioning equipment of this application is proposed. In this embodiment, the number of terminal devices is at least two, and different terminal devices are located in different indoor spaces, wherein the indoor spaces are indoor spaces with heat exchange requirements. (Refer to...) Figure 5 The step of determining the reference value of the heat pump system based on the ambient temperature of the indoor space and the current set temperature of the terminal device includes:

[0148] Step S01: Determine the first temperature difference between the ambient temperature of each indoor space and the corresponding set temperature;

[0149] The first temperature difference value is the difference between the ambient temperature and the set temperature.

[0150] Step S02: Determine the sub-target refrigerant temperature of each terminal device in the indoor space according to the first temperature difference value;

[0151] The sub-target refrigerant temperature is the target value of the inlet liquid temperature of the corresponding terminal equipment.

[0152] Different first temperature difference values ​​correspond to different sub-target refrigerant temperatures, and the sub-target refrigerant temperature is negatively correlated with the first temperature difference value.

[0153] The correspondence between the first temperature difference value and the sub-target refrigerant temperature can be preset, and the correspondence can include calculation formulas, mapping tables, etc. Based on this correspondence, the sub-target refrigerant temperature corresponding to the first temperature difference value can be determined.

[0154] In one implementation, a sub-target refrigerant temperature can be obtained by adjusting the target value of the current refrigerant temperature of the terminal device based on a first temperature difference value. In another implementation, a temperature range containing the first temperature difference value can be determined, and the refrigerant temperature associated with the temperature range can be used as the sub-target refrigerant temperature.

[0155] Step S03: Determine the reference value based on at least two of the sub-target refrigerant temperatures.

[0156] Determine the maximum, minimum, average, or weighted average of the refrigerant temperature of at least two sub-targets as reference values, etc.

[0157] In this embodiment, the above method ensures that the reference value can accurately reflect the overall heat exchange demand of multiple indoor spaces regulated by the environmental control equipment, thereby further improving the balance between energy saving and comfort of multiple indoor spaces when the user is not in the indoor space.

[0158] Furthermore, in this embodiment, the step of determining the sub-target refrigerant temperature of each terminal device in the indoor space based on the first temperature difference value includes: when the first temperature difference value is greater than a first preset temperature difference, decreasing the target value of the current refrigerant temperature of the corresponding terminal device to obtain the corresponding sub-target refrigerant temperature; when the first temperature difference value is less than a second preset temperature difference, increasing the target value of the current refrigerant temperature of the corresponding terminal device to obtain the corresponding sub-target refrigerant temperature; when the first temperature difference value is greater than or equal to the second preset temperature difference and less than or equal to the first preset temperature difference, determining the target value of the current refrigerant temperature of the corresponding terminal device as the corresponding sub-target refrigerant temperature; wherein, the first preset temperature is greater than the second preset temperature difference.

[0159] The target value for the current refrigerant temperature of the terminal device may include a preset target value or a sub-target refrigerant temperature obtained from the last adjustment of the terminal device. In this embodiment, the preset target value may be the minimum refrigerant temperature allowed to be reached during the operation of the heat pump system.

[0160] The target value for decreasing or increasing the current refrigerant temperature of the terminal equipment can be adjusted according to a preset temperature adjustment value, or it can be adjusted based on the actual operating conditions of the environmental control equipment. For example, the temperature adjustment value can be determined based on the total number of indoor spaces with heat exchange needs and / or the temperature difference between the ambient temperatures of each indoor space with heat exchange needs.

[0161] When the environmental control equipment enters the first stage, the target value of the current refrigerant temperature of the terminal equipment can be the preset target value. After adjusting the preset target value to obtain the sub-target refrigerant temperature, the target value of the current refrigerant temperature of the terminal equipment is updated to the sub-target refrigerant temperature.

[0162] In this embodiment, during the heating process of the terminal device, if the first temperature difference is greater than the first preset temperature difference, it indicates that the indoor temperature is high. At this time, reducing the target value of the current refrigerant temperature of the corresponding terminal device to obtain the sub-target refrigerant temperature of the terminal device can prevent the target refrigerant temperature of the heat pump system from being too high, thereby ensuring that the corresponding indoor space is close to the user's comfort state while improving energy saving. If the first temperature difference is less than the second preset temperature difference, it indicates that the indoor temperature is too low. At this time, increasing the target value of the current refrigerant temperature of the corresponding terminal device to obtain the sub-target refrigerant temperature of the terminal device can prevent the target refrigerant temperature of the heat pump system from being too low, thereby ensuring energy saving while preventing the indoor space from deviating significantly from the user's comfort temperature state. If the first temperature difference is between the first preset temperature difference and the second preset temperature difference, it indicates that the energy saving and comfort of the indoor space are well balanced. Maintaining the target value of the current refrigerant temperature unchanged can prevent the target refrigerant temperature of the heat pump system from being too high or too low, thereby ensuring an effective balance between energy saving and comfort.

[0163] Furthermore, in this embodiment, the heat pump system includes at least two indoor units, each corresponding to a terminal device. The corresponding indoor units and terminal devices are located in the same indoor space. The step of determining the reference value based on at least two sub-target refrigerant temperatures includes: determining the total rated capacity of all indoor units when the environmental conditioning device operates in heat exchange mode to meet the preset conditions but has not reached the target time; determining the weight value of the sub-target refrigerant temperature of each terminal device based on the ratio of the rated capacity of each indoor unit to the total rated capacity; and determining the reference value based on at least two sub-target refrigerant temperatures and their corresponding weight values.

[0164] The total rated capacity is the sum of the rated capacities of the indoor units in all indoor spaces with energy needs.

[0165] In this embodiment, the ratio of rated capacity to total rated capacity can be used as the corresponding weight value. In other embodiments, the corresponding weight value can also be obtained by adjusting the ratio according to a preset coefficient.

[0166] The reference value here can be obtained by calculating the weighted average of the refrigerant temperature of each sub-target and its corresponding weight value.

[0167] In this embodiment, determining the reference value of the target refrigerant temperature of the heat pump system in the first stage through the above method helps to ensure that the indoor spaces do not deviate significantly from the user's comfort state after the target refrigerant temperature of the heat pump system is adjusted, while effectively improving energy efficiency.

[0168] In other embodiments, the weight value may be a pre-set fixed value or a value determined based on other operating status parameters of the environmental control equipment. For example, the weight value corresponding to the refrigerant temperature of each sub-target may be determined based on the relationship between the set temperatures of the terminal devices in each indoor space.

[0169] Furthermore, in this embodiment, the terminal device is in a heating state in the heat exchange mode, and the step of determining the reference value based on at least two sub-target refrigerant temperatures includes: when the environmental conditioning device operates to the target time in the heat exchange mode, determining the reference value based on the maximum value among all sub-target refrigerant temperatures.

[0170] In this embodiment, the maximum value is determined as the reference value. In other embodiments, the reference value is obtained by correcting the maximum value according to a preset coefficient.

[0171] In this embodiment, determining the reference value of the target refrigerant temperature of the heat pump system in the second stage in the above manner helps to ensure that the environmental conditioning equipment can provide sufficient heat to all indoor spaces, achieve rapid heating of each indoor space, and ensure that the ambient temperature is matched with the user's comfort level when the user returns to any indoor space.

[0172] Furthermore, based on any of the above embodiments, another embodiment of the control method for the environmental conditioning equipment of this application is proposed. In this embodiment, the heat pump system includes an indoor unit, and the environmental conditioning equipment further includes a fresh air system for regulating the indoor space. The heat pump system includes at least two indoor units, each regulating a different indoor space. The fresh air system can be used to regulate at least two indoor spaces, and the supply or cessation of fresh air supply to each indoor space is controlled by a corresponding air valve. (Refer to...) Figure 6 The control method for the environmental control equipment further includes:

[0173] Step S100: When the environmental conditioning device operates in heat exchange mode until the preset conditions are met, the indoor unit is controlled to shut down, and the fresh air system is controlled to stop supplying air to the indoor space.

[0174] If some indoor spaces meet the preset conditions while others do not, the indoor units in the spaces that meet the preset conditions can be shut down, and the fresh air system can be stopped supplying air to the spaces that meet the preset conditions. The air supply status of the indoor units and the fresh air system in the spaces that do not meet the preset conditions remains unchanged.

[0175] Step S200: When the environmental control equipment reaches the target time, control the fresh air system to supply air to the indoor space.

[0176] When the environmental control equipment reaches the target time, the indoor unit remains off.

[0177] When some indoor spaces meet the preset conditions while others do not, the indoor units in the spaces that meet the preset conditions can be kept off, and the fresh air system can be controlled to supply air to the spaces that meet the preset conditions. The air supply status of the indoor units and the fresh air system in the spaces that do not meet the preset conditions remains unchanged.

[0178] In this embodiment, when the user is not in the corresponding indoor space, the indoor unit of the heat pump system remains in a shutdown state, the fresh air system stops supplying air in the first stage and starts supplying air in advance in the second stage, which helps to further improve the energy-saving effect of the environmental control equipment and further improve the air quality when the user returns to the indoor space.

[0179] Furthermore, this invention also proposes a storage medium storing a control program for an environmental control device. When the control program for the environmental control device is executed by a processor, it implements the relevant steps of any of the above embodiments of the control method for the environmental control device.

[0180] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.

[0181] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0182] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, environmental control device, or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0183] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural or procedural transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.

Claims

1. A control method for an environmental control device, characterized in that, The environmental control equipment includes a heat pump system and a refrigerant circulation system connected to the heat pump system for heat exchange. The refrigerant circulation system includes terminal equipment. The control method of the environmental control equipment includes the following steps: When the environmental conditioning equipment operates in heat exchange mode to meet the preset conditions, the current set temperature of the terminal equipment and / or the current target refrigerant temperature of the heat pump system are adjusted to reduce the energy consumption of the environmental conditioning equipment, and the operation of the environmental conditioning equipment is controlled according to the adjusted target refrigerant temperature and / or set temperature. When the environmental control equipment reaches the target time, the current set temperature of the terminal equipment and / or the current target refrigerant temperature of the heat pump system are adjusted to increase the heat exchange of the terminal equipment, and the operation of the environmental control equipment is controlled according to the adjusted target refrigerant temperature and / or set temperature. The preset condition indicates that there are no users in the indoor space adjusted by the terminal device, and the target time is earlier than the initial time when there are users in the indoor space.

2. The control method for the environmental control equipment as described in claim 1, characterized in that, In the heat exchange mode, the terminal device is in a heating state, and the step of adjusting the current set temperature of the terminal device and / or the current target refrigerant temperature of the heat pump system to reduce the energy consumption of the environmental control equipment includes: Lower the current set temperature of the terminal device to the first set temperature; The step of adjusting the current target refrigerant temperature of the refrigerant circulation system and the current set temperature of the terminal equipment to increase the heat exchange capacity of the terminal equipment includes: Increase the current set temperature of the terminal device to a second set temperature; Wherein, the first set temperature is lower than the second set temperature.

3. The control method for the environmental control equipment as described in claim 1, characterized in that, In the heat exchange mode, the terminal device is in a heating state, and the step of adjusting the current set temperature of the terminal device and / or the current target refrigerant temperature of the heat pump system to reduce the energy consumption of the environmental control equipment includes: The target refrigerant temperature of the heat pump system is limited to be less than or equal to a first preset temperature; The step of adjusting the current set temperature of the terminal device and / or the current target refrigerant temperature of the refrigerant circulation system to increase the heat exchange capacity of the terminal device includes: The target refrigerant temperature of the heat pump system is limited to be less than or equal to a second preset temperature; Wherein, the first preset temperature is less than the second preset temperature.

4. The control method for the environmental control equipment as described in claim 3, characterized in that, The control method for the environmental conditioning equipment also includes: The reference value for the target refrigerant temperature of the heat pump system is determined based on the ambient temperature of the indoor space and the current set temperature of the terminal device. The step of limiting the target refrigerant temperature of the refrigerant circulation system to be less than or equal to a first preset temperature includes: When the reference value is less than the first preset temperature, the reference value is determined to be the target refrigerant temperature; When the reference value is greater than or equal to the first preset temperature, the first preset temperature is determined to be the target refrigerant temperature.

5. The control method for the environmental control equipment as described in claim 3, characterized in that, The control method for the environmental conditioning equipment also includes: The reference value for the target refrigerant temperature of the heat pump system is determined based on the ambient temperature of the indoor space and the current set temperature of the terminal device. The step of limiting the target refrigerant temperature of the heat pump system to be less than or equal to a second preset temperature includes: When the reference value is less than the second preset temperature, the reference value is determined to be the target refrigerant temperature; When the reference value is greater than or equal to the second preset temperature, the second preset temperature is determined as the target refrigerant temperature.

6. The control method for the environmental control equipment as described in claim 4 or 5, characterized in that, The number of terminal devices is at least two, and different terminal devices are installed in different indoor spaces. The step of determining the reference value of the heat pump system based on the ambient temperature of the indoor space and the current set temperature of the terminal devices includes: Determine a first temperature difference value between the ambient temperature of each indoor space and the corresponding set temperature; The sub-target refrigerant temperature of the terminal device in each of the indoor spaces is determined according to the first temperature difference value. The reference value is determined based on at least two of the sub-target refrigerant temperatures.

7. The control method for the environmental control equipment as described in claim 6, characterized in that, The step of determining the sub-target refrigerant temperature of each terminal device in the indoor space based on the first temperature difference value includes: When the first temperature difference value is greater than the first preset temperature difference, the target value of the current refrigerant temperature of the corresponding terminal device is reduced to obtain the corresponding sub-target refrigerant temperature. When the first temperature difference is less than the second preset temperature difference, the target value of the current refrigerant temperature of the corresponding terminal device is increased to obtain the corresponding sub-target refrigerant temperature. When the first temperature difference is greater than or equal to the second preset temperature difference and less than or equal to the first preset temperature difference, the target value of the current refrigerant temperature of the corresponding terminal device is determined to be the corresponding sub-target refrigerant temperature. Wherein, the first preset temperature is greater than the second preset temperature difference.

8. The control method for the environmental control equipment as described in claim 6, characterized in that, The heat pump system includes at least two indoor units, each corresponding to a terminal device. The step of determining the reference value based on at least two sub-target refrigerant temperatures includes: When the environmental control equipment operates in heat exchange mode until it meets the preset conditions but has not reached the target time, the total rated capacity of all indoor units is determined. The weight value of the sub-target refrigerant temperature of each terminal device is determined according to the ratio of the rated capacity of each indoor unit to the total rated capacity. The reference value is determined based on at least two of the sub-target refrigerant temperatures and their corresponding weight values.

9. The control method for the environmental control equipment as described in claim 6, characterized in that, In the heat exchange mode, the terminal device is in a heating state, and the step of determining the reference value based on at least two of the sub-target refrigerant temperatures includes: When the environmental conditioning equipment operates in the heat exchange mode to the target time, the reference value is determined based on the maximum value among all sub-target refrigerant temperatures.

10. The control method for the environmental control equipment as described in any one of claims 1 to 9, characterized in that, The refrigerant circulation system includes at least two terminal devices and at least two control valves, each control valve corresponding to one of the terminal devices. The control valves are used to adjust the refrigerant flow rate of the corresponding terminal device. Different terminal devices regulate different indoor spaces. The step of controlling the operation of the environmental conditioning equipment according to the adjusted set temperature includes: The corresponding control valves are operated based on the ambient temperature of each indoor space and the adjusted set temperature.

11. The control method for the environmental control equipment as described in claim 10, characterized in that, In the heat exchange mode, the terminal device is in heating mode, and the step of controlling the operation of the control valve according to the ambient temperature of each indoor space and the adjusted set temperature includes: Determine a second temperature difference between each ambient temperature and the set temperature of the corresponding indoor space's terminal equipment after adjustment; When the second temperature difference is greater than or equal to the third preset temperature difference, the corresponding control valve is closed. When the second temperature difference is less than the fourth preset temperature difference, the corresponding control valve is opened; Wherein, the fourth preset temperature difference is less than or equal to the third preset temperature difference.

12. The control method for the environmental control equipment as described in any one of claims 1 to 9, characterized in that, The heat pump system includes an indoor unit, and the environmental control equipment further includes a fresh air system for regulating the indoor space. The control method for the environmental control equipment further includes: When the environmental control equipment operates in heat exchange mode until the preset conditions are met, the indoor unit is controlled to shut down, and the fresh air system is controlled to stop supplying air to the indoor space. When the environmental control equipment reaches the target time, it controls the fresh air system to supply air to the indoor space.

13. An environmental control device, characterized in that, The environmental control equipment includes a control device, a heat pump system, and a refrigerant circulation system connected to the heat pump system for heat exchange. The refrigerant circulation system includes terminal equipment. The control device includes: a memory, a processor, and a control program for an environmental control device stored in the memory and executable on the processor. When the control program for the environmental control device is executed by the processor, it implements the steps of the control method for the environmental control device as described in any one of claims 1 to 12.

14. A storage medium, characterized in that, The storage medium stores a control program for an environmental control device, which, when executed by a processor, implements the steps of the control method for an environmental control device as described in any one of claims 1 to 12.

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