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

Abstract

The invention discloses a control method of an environment adjusting system, the environment adjusting system and a storage medium, and relates to the technical field of electric appliances, the environment adjusting system comprises an indoor unit, and the method comprises the steps that the environment adjusting system is controlled to operate in a refrigeration mode; under the condition that the environment adjusting system starts oil return operation, a temperature parameter is obtained, and the temperature parameter represents the air outlet temperature of the indoor unit; and under the condition that the temperature parameter is smaller than the preset temperature, the indoor unit is controlled to increase the air outlet amount. The invention aims to improve the indoor comfort and the system operation reliability.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrical appliances, and in particular to a control method of an environment adjusting system, the environment adjusting system, and a storage medium. BACKGROUND

[0002] The indoor unit in the environment adjusting system such as an air conditioner can drive indoor air into an indoor air duct to exchange heat with an indoor heat exchanger through an indoor fan, and the air after heat exchange can be sent back to the indoor environment from an air outlet to realize the adjustment of the indoor air.

[0003] In the related art, in the indoor unit refrigeration process, when entering the oil return operation in the low load state, the phenomenon of excessively low outlet air temperature exists, and the problems of poor indoor comfort and easy freezing of the indoor unit affecting the system operation reliability exist. SUMMARY

[0004] The main purpose of the present application is to provide a control method of an environment adjusting system, the environment adjusting system, and a storage medium, aiming to improve the indoor comfort and the system operation reliability.

[0005] To achieve the above-mentioned purpose, the present application provides a control method of an environment adjusting system, the environment adjusting system comprising an indoor unit, and the method comprising:

[0006] Controlling the environment adjusting system to operate in a refrigeration mode;

[0007] In the case that the environment adjusting system starts the oil return operation, a temperature parameter is acquired, the temperature parameter representing the outlet air temperature of the indoor unit;

[0008] In the case that the temperature parameter is less than a preset temperature, the indoor unit is controlled to increase the air volume.

[0009] In an embodiment, the indoor unit comprises a first air outlet and a second air outlet, and the air volume of the first air outlet is greater than that of the second air outlet when the indoor fan in the indoor unit has the same rotating speed, and before the step of acquiring the temperature parameter in the case that the environment adjusting system starts the oil return operation, the method further comprises:

[0010] Controlling the environment adjusting system to operate in a refrigeration mode, and controlling the indoor unit to operate so as to close the first air outlet and open the second air outlet.

[0011] In an embodiment, the indoor unit comprises a first switch door and a second switch door, the first air outlet comprises a first air outlet area and a second air outlet area, the first switch door is configured to adjust the air volume of the first air outlet area, and the second switch door is configured to adjust the air volume of the second air outlet area and the second air outlet, and the step of controlling the indoor unit to operate so that the first air outlet is closed and the second air outlet is opened comprises:

[0012] controlling the first switch door to shield the first air outlet area and controlling the second switch door to shield the second air outlet area.

[0013] In an embodiment, the step of controlling the indoor unit to increase the air volume comprises:

[0014] controlling the indoor unit to operate so that the first air outlet and the second air outlet are both opened.

[0015] In an embodiment, the indoor unit comprises a first switch door and a second switch door, the first air outlet comprises a first air outlet area and a second air outlet area, the first switch door is configured to adjust the air volume of the first air outlet area, and the second switch door is configured to adjust the air volume of the second air outlet area and the second air outlet, and the step of controlling the indoor unit to operate so that the first air outlet and the second air outlet are both opened comprises:

[0016] controlling the first switch door to open the first air outlet area, controlling the second switch door to shield the second air outlet area and open the second air outlet;

[0017] or, controlling the first switch door to open the first air outlet area, and controlling the second switch door to open the second air outlet area and the second air outlet.

[0018] In an embodiment, before the step of controlling the indoor unit to increase the air volume, the method further comprises:

[0019] when the temperature parameter is less than a preset temperature, obtaining a heat exchanger temperature of the indoor heat exchanger;

[0020] the step of controlling the indoor unit to increase the air volume comprises:

[0021] controlling the indoor unit to increase the air volume according to the heat exchanger temperature, the air volume being negatively correlated with the heat exchanger temperature.

[0022] In an embodiment, the indoor unit comprises a first switch door and a second switch door, the first air outlet comprises a first air outlet area and a second air outlet area, the first switch door is configured to adjust the air volume of the first air outlet area, and the second switch door is configured to adjust the air volume of the second air outlet area and the second air outlet, the step of controlling the indoor unit to operate so that the first air outlet and the second air outlet are both opened comprises:

[0023] In the case that the heat exchanger temperature is greater than or equal to the preset heat exchanger temperature, the first switch door is controlled to open the first air outlet area, and the second switch door is controlled to shield the second air outlet area and open the second air outlet;

[0024] In the case that the heat exchanger temperature is less than the preset heat exchanger temperature, the first switch door is controlled to open the first air outlet area, and the second switch door is controlled to open the second air outlet area and the second air outlet.

[0025] In an embodiment, the step of controlling the first switch door to open the first air outlet area and the second switch door to open the second air outlet area and the second air outlet in the case that the heat exchanger temperature is less than the preset heat exchanger temperature is performed simultaneously or after the step of controlling the indoor unit to operate so that the first air outlet and the second air outlet are both opened, further comprising:

[0026] Controlling the compressor connected to the indoor unit to operate at a reduced frequency, and / or controlling the indoor fan in the indoor unit to operate at an increased rotational speed.

[0027] In an embodiment, the step of controlling the environmental regulation system to operate in the cooling mode is further preceded by:

[0028] In the case that the environmental regulation system starts oil return operation and the oil return frequency of the compressor is greater than the operating frequency of the compressor before the oil return operation, the step of acquiring the temperature parameter is performed.

[0029] In addition, to achieve the above object, the present application further provides an environmental regulation system, comprising an indoor unit and a control device, the indoor unit being connected to the control device, the control device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the control method of the environmental regulation system as described above.

[0030] In an embodiment, the indoor unit comprises a first air outlet and a second air outlet, the area of the first air outlet is greater than the area of the second air outlet, and / or the air outlet direction of the indoor fan in the indoor unit is towards the first air outlet and not towards the second air outlet.

[0031] In an embodiment, the first air outlet is arranged on a side plate of the indoor unit, and the second air outlet is arranged on a bottom plate of the indoor unit.

[0032] In addition, to achieve the above object, the present application further provides a storage medium, which is a computer readable storage medium, and a computer program is stored on the storage medium. The computer program is executed by a processor to implement the steps of the control method of the environment regulation system.

[0033] The one or more technical solutions provided by the present application have at least the following technical effects: when the environment regulation system enters the oil return operation during the refrigeration operation, the temperature parameter is used to determine whether the air outlet temperature of the indoor unit is too low. When the air outlet temperature of the indoor unit is too low, the air outlet volume of the indoor unit is increased, the accumulation of cold energy in the indoor unit is effectively reduced, the air outlet temperature of the indoor unit is effectively increased, and the indoor comfort and the system operation reliability are effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0034] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present application and, together with the specification, serve to explain the principles of the application.

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings.

[0036] Figure 1 The structure of an embodiment of the indoor unit in the environment regulation system of the present application and the schematic diagram of different air outlet states thereof;

[0037] Figure 2 The installation structure schematic diagram when the panel is arranged in another embodiment of the indoor unit in the environment regulation system of the present application and the air outlet angle schematic diagram of each air outlet;

[0038] Figure 3 The device structure schematic diagram of the hardware running environment involved in the control method of the environment regulation system in the embodiment of the present application;

[0039] Figure 4 The flowchart schematic diagram provided by the control method embodiment one of the environment regulation system of the present application;

[0040] Figure 5 The flowchart schematic diagram provided by the control method embodiment two of the environment regulation system of the present application;

[0041] Figure 6 The flowchart schematic diagram provided by the control method embodiment three of the environment regulation system of the present application.

[0042] The purposes, functional features and advantages of the present application will be further explained in conjunction with the embodiments, with reference to the accompanying drawings. DETAILED DESCRIPTION

[0043] It should be understood that the specific embodiments described herein are merely intended to explain the technical solutions of the present application, and are not intended to limit the present application.

[0044] In order to better understand the technical solutions of the present application, the specific embodiments will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0045] The main solution of the embodiments of the present application is: based on an environment adjusting system, a control method is proposed, the environment adjusting system includes an indoor unit, the method includes: controlling the environment adjusting system to run in a refrigeration mode; in the case that the environment adjusting system starts oil return operation, a temperature parameter is obtained, the temperature parameter represents the outlet air temperature of the indoor unit; in the case that the temperature parameter is less than a preset temperature, the indoor unit is controlled to increase the outlet air volume.

[0046] In the present embodiment, for the convenience of description, the following is described with the environment adjusting system as the execution subject.

[0047] In the prior art, in the process of refrigeration of the indoor unit, when entering the oil return operation in the low load state, due to the low frequency operation of the compressor in the low load state, the compressor oil is easy to accumulate in the indoor heat exchanger, triggering the start of the oil return operation of the air conditioner, and the increase of the frequency of the compressor when the compressor operates at the oil return frequency will cause the temperature of the indoor heat exchanger to decrease, and the phenomenon of excessively low outlet air temperature is easy to occur, and there are problems of poor indoor comfort and easy freezing of the indoor unit affecting the reliability of the system operation.

[0048] The present application provides the above-mentioned solution, when the environment adjusting system enters the oil return operation in the process of refrigeration operation, the outlet air temperature of the indoor unit is determined by the temperature parameter when the outlet air temperature of the indoor unit is too low, the outlet air volume of the indoor unit is increased, the accumulation of cold energy in the indoor unit is effectively reduced, the outlet air temperature of the indoor unit is effectively improved, and the indoor comfort and the reliability of the system operation are effectively improved.

[0049] The present application provides an environment adjusting system, which is arranged to adjust the air in the indoor environment. The environment adjusting system can include an environment adjusting system, etc.

[0050] In the present embodiment, with reference to Figure 1 and Figure 2 , the environment adjusting system includes an indoor unit 200, and the indoor unit 200 includes at least two air outlets. In the present embodiment, the air outlet directions of different air outlets are different, and the air resistance of different air outlets is different.

[0051] In the embodiment, the indoor unit 200 is a ducted type air conditioner. The installation height of the indoor unit 200 is higher than the height of a human body.

[0052] The indoor unit 200 is provided with an indoor air duct, and the at least two air outlets are in communication with the indoor air duct. The indoor air duct is provided with an indoor heat exchanger 21 and an indoor fan 22. The indoor fan 22 can drive indoor air to enter the indoor air duct, exchange heat with the indoor heat exchanger 21, and then be sent into the indoor space from the at least one air outlet.

[0053] In the embodiment, the at least two air outlets include a first air outlet and a second air outlet. The first air outlet is a side air outlet 201 arranged on the side plate, and the second air outlet is a lower air outlet 202 arranged on the bottom plate. The indoor unit 200 includes a shell, and the shell includes a bottom plate and a side plate connected to the bottom plate. The bottom plate is provided with the lower air outlet 202, and the side plate is provided with the side air outlet 201. The lower air outlet 202 and the side air outlet 201 are in communication with the indoor air duct.

[0054] The bottom plate is a plate body at the bottom of the shell when the indoor unit 200 is installed in an indoor space, and the side plate is a plate body adjacent to the bottom plate on the shell. When the indoor unit 200 is installed in an indoor space, the included angle between the side plate and the wall of the indoor space (for example, 0 degrees) is smaller than the included angle between the bottom plate and the wall of the indoor space (for example, 90 degrees).

[0055] The air outlet surface where the lower air outlet 202 is located intersects the air outlet surface where the side air outlet 201 is located. The air outlet direction of the lower air outlet 202 is downward (vertically downward or an included angle with the vertical direction less than or equal to 45°), and the air outlet direction of the side air outlet 201 is horizontal (along the horizontal direction or an included angle with the horizontal direction less than or equal to 45°). In the embodiment, the air outlet surface where the lower air outlet 202 is located is perpendicular to the air outlet surface where the side air outlet 201 is located.

[0056] During the operation of the indoor fan 22, the wind resistance of the wind in the indoor air duct when the wind is discharged from the lower air outlet 202 is greater than the wind resistance of the wind in the indoor air duct when the wind is discharged from the side air outlet 201, that is, the air outlet volume of the lower air outlet 202 is smaller than the air outlet volume of the side air outlet 201 when the rotation speed of the indoor fan 22 is the same. In the embodiment, the area of the lower air outlet 202 is smaller than the area of the side air outlet 201, and the included angle between the air outlet direction of the indoor fan 22 and the air outlet surface where the side air outlet 201 is located is greater than the included angle between the air outlet direction and the air outlet surface where the lower air outlet 202 is located, that is, the air outlet direction of the indoor fan 22 is toward the side air outlet 201 and not toward the lower air outlet 202.

[0057] When the indoor unit 200 discharges air through the lower air outlet 202, the discharged air can adjust the temperature of the envelope structure of the indoor space in addition to adjusting the air temperature of the indoor space.

[0058] In other embodiments, the at least two air outlets can also be arranged on the side of the indoor unit 200, or the air outlet directions of the at least two air outlets can be the same.

[0059] In the embodiment, the indoor unit 200 further comprises an air outlet assembly 23 arranged to adjust the air outlet state of the at least two air outlets, and to adjust the opening or closing of each air outlet or the air outlet volume.

[0060] The air outlet assembly 23 can be an integral structure or composed of more than one air deflector. When the air outlet assembly 23 comprises more than one air deflector, the air outlets can correspond to the air deflectors one by one, and each air deflector can adjust the air outlet state of the corresponding air outlet; or some air deflectors can simultaneously adjust the air outlet states of different air outlets.

[0061] In the embodiment, the air outlet assembly 23 is arranged in the indoor air duct, and the position change of the air outlet assembly 23 can realize the cooperation of the lower air outlet 202 and the side air outlet 201 in different air outlet states:

[0062] Referring to Figure 1 (a), the dashed line is the air flow direction, and when the air outlet assembly 23 is in the first position state, the lower air outlet 202 is opened and the side air outlet 201 is closed;

[0063] Referring to Figure 1 (b), the dashed line is the air flow direction, and when the air outlet assembly 23 is in the second position state, the lower air outlet 202 is closed and the side air outlet 201 is opened;

[0064] Referring to Figure 1 (c) and Figure 1 (d), the dashed line is the air flow direction, and when the air outlet assembly 23 is in the third position state, the lower air outlet 202 and the side air outlet 201 are both opened.

[0065] In the embodiment, the air outlet assembly 23 comprises a first switch door 231 and a second switch door 232, the side air outlet 201 comprises a first air outlet area and a second air outlet area, the first switch door 231 is arranged to adjust the air outlet volume of the first air outlet area, and the second switch door 232 is arranged to adjust the air outlet volume of the second air outlet area and the lower air outlet 202.

[0066] In the embodiment, the first air outlet area is an upper air outlet area away from the lower air outlet 202, and the second air outlet area is a lower air outlet area close to the lower air outlet 202, the first switch door 231 is rotatably installed on the upper side of the side air outlet 201 to adjust the air outlet volume of the upper air outlet area, and the second switch door 232 is rotatably installed at the abutting position between the lower air outlet 202 and the side air outlet 201, and the rotation of the second switch door 232 can simultaneously adjust the air outlet volume of the lower air outlet area and the lower air outlet 202.

[0067] The first position state includes that the first switch door 231 is in the first position and the second switch door 232 is in the second position, both the first switch door 231 and the second switch door 232 are in the wind blocking position, the first switch door 231 blocks the first air outlet area, the second switch door 232 blocks the second air outlet area, that is, the included angle between the panel of the two switch doors and the air outlet direction of the indoor fan 22 is greater than the preset angle, the first switch door 231 and the second switch door 232 cooperate to block the side air outlet 201 and open the lower air outlet 202, the air outlet of the indoor fan 22 is blown into the room from the lower air outlet 202 under the cooperative guiding action of the first switch door 231 and the second switch door 232 and stops being blown into the room from the side air outlet 201.

[0068] The second position state includes that the first switch door 231 is in the third position and the second switch door 232 is in the fourth position, in the third position, the included angle between the panel of the first switch door 231 and the air outlet direction of the indoor fan 22 is less than or equal to the preset angle (for example, the panel of the first switch door 231 is parallel to the air outlet direction of the indoor fan 22), and the first switch door 231 opens the first air outlet area; in the fourth position, the included angle between the panel of the second switch door 232 and the air outlet direction of the indoor fan 22 is less than or equal to the preset angle, the second switch door 232 blocks the lower air outlet 202 and opens the second air outlet area in the fourth position; the first switch door 231 and the second switch door 232 cooperate to open the side air outlet 201, the air outlet of the indoor fan 22 is blown into the room from the side air outlet 201 under the cooperative guiding action of the first switch door 231 and the second switch door 232 and stops being blown into the room from the lower air outlet 202.

[0069] The third position state includes that the first switch door 231 is in the third position and the second switch door 232 is in the fifth position, the fifth position is between the second position and the fourth position, the second switch door 232 simultaneously opens the second air outlet area and the lower air outlet 202 in the fifth position, at this time, the side air outlet 201 is fully opened. Alternatively, the third position state can include that the first switch door 231 is in the third position and the second switch door 232 is in the second position, at this time, the side air outlet 201 is partially opened and partially blocked. The first switch door 231 and the second switch door 232 cooperate to open the lower air outlet 202 and the side air outlet 201, the air outlet of the indoor fan 22 is blown into the room from the lower air outlet 202 and the side air outlet 201 respectively under the cooperative guiding action of the first switch door 231 and the second switch door 232.

[0070] In other embodiments, the air outlet assembly 23 can further include a third air deflector rotatably installed between the lower air outlet 202 and the side air outlet 201, the third air deflector being switchable between a first operating position in which the lower air outlet 202 is closed and the side air outlet 201 is opened, a second operating position in which the side air outlet 201 is closed and the lower air outlet 202 is opened, and a third operating position in which the lower air outlet 202 and the side air outlet 201 are both opened.

[0071] In an embodiment, referring to Figure 2 , the indoor unit 200 can further include a panel disposed outside the housing, the panel having a first air deflector assembly 24 disposed thereon corresponding to the lower air outlet 202. The first air deflector assembly 24 can include an air deflector grille or an air deflector panel, etc. The panel has a first avoiding hole disposed at a position corresponding to the lower air outlet 202, the first avoiding hole being configured to accommodate the first air deflector assembly 24, the first air deflector assembly 24 being disposed outside the indoor air duct.

[0072] The first air deflector assembly 24 can open or close the lower air outlet 202 and adjust the air outlet direction of the lower air outlet 202.

[0073] In an embodiment, referring to Figure 2 , the indoor unit 200 can further include a panel disposed outside the housing, the panel having a second air deflector assembly 27 disposed thereon corresponding to the side air outlet 201. The second air deflector assembly 27 can include an air deflector grille or an air deflector panel, etc. The panel has a second avoiding hole disposed at a position corresponding to the side air outlet 201, the second avoiding hole being configured to accommodate the second air deflector assembly 27, the second air deflector assembly 27 being disposed outside the indoor air duct.

[0074] The second air deflector assembly 27 can open or close the side air outlet 201 and adjust the air outlet direction of the side air outlet 201.

[0075] In an embodiment, the environmental conditioning system can include more than one indoor unit 200, different indoor units 200 being distributed in different indoor spaces. For example, the environmental conditioning system can be a multi-split air conditioner.

[0076] In an embodiment, the environmental conditioning system includes a refrigerant circulation loop, the refrigerant circulation loop including the above-mentioned indoor unit 200, a throttling device, an outdoor heat exchanger, a reversing assembly, and a compressor 300, the compressor 300 being connected to the indoor unit 200.

[0077] The exhaust port of the compressor 300, the return gas port of the compressor 300, the outdoor heat exchanger, and the indoor heat exchanger 21 are all connected with a reversing assembly, the reversing assembly has a first operating state and a second operating state, when the reversing assembly operates in the first operating state, the exhaust port is communicated with the outdoor heat exchanger and the return gas port is communicated with the indoor heat exchanger 21, when the reversing assembly operates in the second operating state, the exhaust port is communicated with the indoor heat exchanger 21 and the return gas port is communicated with the outdoor heat exchanger.

[0078] With reference to Figure 1 The indoor unit 200 further comprises a first temperature sensor 25, which can be arranged in the indoor air duct and located at the air outlet side of the indoor fan 22, to detect the air outlet temperature of the indoor unit 200.

[0079] With reference to Figure 1 The indoor unit 200 further comprises a second temperature sensor 26, which can be arranged on the coil of the indoor heat exchanger 21, to detect the temperature of the indoor heat exchanger 21.

[0080] With reference to Figure 3 The environment conditioning system further comprises a control device 100, and the above-mentioned indoor unit 200 and the compressor 300 are all connected with the control device 100.

[0081] The control device 100 comprises at least one processor 1001, and a memory 1002 and a timer 1003 in communication connection with the at least one processor 1001; the memory 1002 stores instructions executable by the at least one processor 1001, and the instructions are executed by the at least one processor 1001 to enable the at least one processor 1001 to execute the control method of the environment conditioning system in the following embodiments.

[0082] With reference to Figure 3 Fig. 1 shows a structural schematic diagram of a control device 100 suitable for implementing the embodiments of the present application. The environment conditioning system in the embodiments of the present application can include but is not limited to mobile terminals such as mobile phones, notebook computers, digital broadcast receivers, PDAs (Personal Digital Assistant), PADs (Portable Application Description), PMPs (Portable Media Player), vehicle-mounted terminals (such as vehicle-mounted navigation terminals), and the like, and fixed terminals such as digital TVs, desktop computers, and the like. Figure 3 The control device 100 shown is only an example, and should not bring any limitation to the functions and use range of the embodiments of the present application.

[0083] As Figure 3As shown, the control device 100 can include a processor 1001 (e.g., a central processing unit, a graphics processing unit, etc.) that can perform various appropriate actions and processes according to programs stored in a memory 1002, which can be programs in a read only memory (ROM) or programs loaded from a storage device into a random access memory (RAM). In the RAM, various programs and data required for the operation of the control device 100 are also stored. The processor 1001, the memory 1002 (ROM and RAM), and the like are connected to each other through a bus. An input / output (I / O) interface is also connected to the bus. Generally, the following systems can be connected to the I / O interface: input devices including, for example, a touch screen, a touch pad, a keyboard, a mouse, an image sensor, a microphone, an accelerometer, a gyroscope, and the like; output devices including, for example, a liquid crystal display (LCD), a speaker, a vibrator, and the like; storage devices including, for example, a magnetic tape, a hard disk, and the like; and communication devices. The communication devices can allow the control device 100 to communicate with other devices wirelessly or by wire to exchange data. Although the control device 100 having various systems is shown in the drawing, it should be understood that all of the systems shown are not required to be implemented or possessed. More or less systems can be alternatively implemented or possessed.

[0084] In particular, according to embodiments of the present disclosure, the method flow described in the following embodiments can be implemented as a computer software program. For example, embodiments of the present disclosure include a computer program product comprising a computer program carried on a computer readable medium, the computer program containing program code for executing the method shown in the flowchart. In such embodiments, the computer program can be downloaded and installed from a network through a communication device, or installed from the memory 1002. When the computer program is executed by the processor 1001, the above-mentioned functions defined in the control method of the environmental regulation system of the embodiments of the present disclosure are performed.

[0085] The environmental regulation system provided by the present disclosure can solve the technical problem of how to improve indoor comfort and system operation reliability by using the control method of the environmental regulation system in the following embodiments. Compared with the prior art, the environmental regulation system provided by the present disclosure has the same beneficial effects as the control method of the environmental regulation system provided by the following embodiments, and other technical features in the environmental regulation system are the same as the features disclosed in the following embodiments, which will not be repeated here.

[0086] It should be noted that the execution subject of the embodiment can be a computing service device with data processing, network communication and program running functions, such as a tablet computer, a personal computer, a mobile phone and the like, or an electronic device, an environment adjusting system and the like capable of realizing the above functions. The following takes the environment adjusting system as an example to describe the embodiment and each of the following embodiments.

[0087] Based on this, the embodiment of the present application provides a control method of an environment adjusting system, which refers to Figure 4 , Figure 4 The following is a flowchart of the control method of the environment adjusting system of the first embodiment of the present application.

[0088] In the embodiment, the control method of the environment adjusting system includes steps S10-S30:

[0089] Step S10, control the environment adjusting system to run in a refrigeration mode;

[0090] When the environment adjusting system runs in the refrigeration mode, the indoor heat exchanger is in an evaporation state, and the reversing assembly runs in the first running state.

[0091] After step S10, when the temperature difference between the indoor temperature of the space where the indoor unit is located and the set temperature of the indoor unit is less than a preset temperature difference, step S20 is executed; when the temperature difference is greater than or equal to the preset temperature difference, the indoor unit is controlled to maintain the current air volume when the environment adjusting system starts to run in the oil return mode.

[0092] Step S20, under the condition that the environment adjusting system starts to run in the oil return mode, a temperature parameter is obtained, the temperature parameter representing the outlet air temperature of the indoor unit;

[0093] During the process that the environment adjusting system runs in the refrigeration mode, when the running frequency of the compressor is less than a preset frequency and lasts for a preset time length, it is determined that the environment adjusting system meets the oil return condition, and then the environment adjusting system can be controlled to start to run in the oil return mode.

[0094] When the environment adjusting system starts to run in the oil return mode, the environment adjusting system is controlled to run by using an oil return control parameter, which can include the oil return frequency of the compressor and / or the oil return opening of the throttling device and / or the oil return speed of the indoor fan and / or the oil return speed of the outdoor fan and the like.

[0095] The temperature parameter can include the outlet air temperature and / or the indoor heat exchanger temperature, and the like. In the embodiment, the outlet air temperature is the temperature of the outlet air side of the indoor fan in the indoor air duct.

[0096] Step S30, control the indoor unit to increase the air volume under the condition that the temperature parameter is less than a preset temperature.

[0097] The temperature parameter less than the preset temperature includes: the outlet air temperature less than the corresponding preset temperature; or, the indoor heat exchanger temperature less than the corresponding preset temperature; or, the outlet air temperature less than the corresponding preset temperature and the indoor heat exchanger temperature less than the corresponding preset temperature. The preset temperature corresponding to the outlet air temperature can be higher than the preset temperature corresponding to the indoor heat exchanger.

[0098] The step of increasing the outlet air volume of the indoor unit can include at least one of the following: increasing the rotation speed of the indoor fan, increasing the outlet air area of the outlet air port; increasing the number of the opened outlet air ports, increasing the opening degree of the outlet air port, and the like.

[0099] In the embodiment, the indoor unit includes at least two outlet air ports, each outlet air port has a different outlet air direction, and each outlet air port has a different outlet air resistance. Increasing the outlet air volume of the at least two outlet air ports can include at least one of the following: increasing the number of the opened outlet air ports, increasing the outlet air area of the currently opened outlet air port, opening the outlet air port with a larger outlet air area than the currently opened outlet air port among the currently closed outlet air ports and closing the currently opened outlet air port, and the like.

[0100] The embodiment provides a control method of an environmental regulation system. When the environmental regulation system enters an oil return operation during a refrigeration operation, the outlet air temperature of the indoor unit is determined to be too low through a temperature parameter. The outlet air volume of the indoor unit is increased, the accumulation of cold energy in the indoor unit is effectively reduced, the outlet air temperature of the indoor unit is effectively increased, and the indoor comfort and the system operation reliability are effectively improved.

[0101] In an available embodiment, the oil return control parameter includes an oil return frequency. After the step of controlling the environmental regulation system to operate in the refrigeration mode, the step of obtaining the temperature parameter is further performed when the environmental regulation system starts the oil return operation and the oil return frequency of the compressor is greater than the operation frequency of the compressor before the oil return operation.

[0102] The oil return frequency is a preset frequency required by the compressor during the system oil return operation.

[0103] When the oil return frequency is less than or equal to the operation frequency of the compressor before the oil return operation, the outlet air assembly can be controlled to maintain the current state.

[0104] In the embodiment, the system increases the frequency of the compressor after the refrigeration enters the oil return operation, which indicates that the outlet air temperature of the indoor unit has a risk of reduction. The outlet air state of the at least two outlet air ports is regulated based on the above method, which is beneficial to meet the outlet air demand of the user, further improve the indoor comfort and the system operation reliability.

[0105] Based on any of the above embodiments, in the second embodiment of the present application, the same or similar contents as the above embodiments can be referred to the above description, and the subsequent description will not be repeated. On this basis, the at least two air outlets include a first air outlet and a second air outlet, the air volume of the first air outlet is greater than that of the second air outlet when the indoor fan in the indoor unit has the same rotating speed, and the air outlet directions corresponding to the first air outlet and the second air outlet are different. In this embodiment, the air resistance of the air outlet of the indoor fan in the indoor unit blowing out from the first air outlet is smaller than that of the air outlet of the indoor fan blowing out from the second air outlet. The area of the first air outlet is greater than that of the second air outlet, and / or the air outlet direction of the indoor fan in the indoor unit is towards the first air outlet and not towards the second air outlet.

[0106] Based on this, please refer to Figure 5 , before step S20, the control method of the environment adjusting system further includes step S101:

[0107] Step S101, control the environment adjusting system to run in a refrigeration mode, and control the indoor unit to run so as to close the first air outlet and open the second air outlet.

[0108] In this embodiment, the first air outlet is the above-mentioned side air outlet, and the second air outlet is the above-mentioned lower air outlet.

[0109] Here, the first air outlet can be closed and the second air outlet can be opened by controlling the operation of the air outlet assembly.

[0110] In this embodiment, in combination with Figure 1 (a), the air outlet assembly includes a first switch door and a second switch door, the first air outlet includes a first air outlet area and a second air outlet area, the first switch door is arranged to adjust the air volume of the first air outlet area, and the second switch door is arranged to adjust the air volume of the second air outlet area and the second air outlet. The step of controlling the indoor unit to run so as to close the first air outlet and open the second air outlet includes: controlling the first switch door to shield the first air outlet area, and controlling the second switch door to shield the second air outlet area. In this process, the first switch door and the second switch door cooperate to close the first air outlet, and since the second switch door is located away from the second air outlet, the second air outlet is opened.

[0111] In this embodiment, when the indoor unit blows air through the second air outlet with large air outlet resistance alone during the refrigeration process, there is a greater risk of excessively low air outlet temperature when entering the oil return operation. By using the above control method, the indoor comfort and system operation reliability can be further improved. Among them, the indoor unit uses the lower air outlet to blow air alone during the refrigeration process, which is beneficial to the rapid sinking of cold energy and improves the refrigeration efficiency of the indoor space.

[0112] In other embodiments, the first air outlet can be an air outlet arranged on the bottom surface of the indoor unit, and the second air outlet can be an air outlet arranged on the side surface of the indoor unit.

[0113] In other embodiments, the first air outlet and the second air outlet can also be respectively provided with corresponding air deflectors, and the opening or closing of each air outlet is independently adjusted by the corresponding air deflector. In this way, the corresponding air deflector of the first air outlet can be controlled to close the first air outlet, and the corresponding air deflector of the second air outlet can be controlled to open the second air outlet.

[0114] In a feasible implementation, referring to Figure 5 , based on step S101, step S30 includes step S301:

[0115] In step S301, when the temperature parameter is less than the preset temperature, the indoor unit is controlled to operate so that the first air outlet and the second air outlet are both opened.

[0116] In this embodiment, when the first air outlet and the second air outlet are both opened, the first air outlet is switched from the closed state to the open state, and the air volume of the first air outlet can be a fixed air volume set in advance or an area determined according to the operating state of the indoor unit; the air volume of the second air outlet remains unchanged or increases.

[0117] In this embodiment, the position of the air outlet assembly is different, and the corresponding air volume of the first air outlet and / or the second air outlet is different when the first air outlet and / or the second air outlet is opened.

[0118] In this embodiment, in combination with Figure 1 (c) and Figure 1 (d), the indoor unit includes an air outlet assembly, the air outlet assembly includes a first switch door and a second switch door, the first air outlet includes a first air outlet area and a second air outlet area, the first switch door is arranged to adjust the air volume of the first air outlet area, and the second switch door is arranged to adjust the air volume of the second air outlet area and the second air outlet. In this way, the first switch door can be controlled to open the first air outlet area, and the second switch door can be controlled to shield the second air outlet area and open the second air outlet, for example in combination with Figure 1 (c); or the first switch door can be controlled to open the first air outlet area, and the second switch door can be controlled to open the second air outlet area and the second air outlet, for example in combination with Figure 1 (d), so as to realize that the first air outlet and the second air outlet are both opened.

[0119] In this embodiment, by the above-mentioned manner, it is beneficial to increase the air volume of the indoor unit, reduce the accumulation of cold energy in the air duct of the indoor unit, and effectively improve the outlet air temperature, so as to effectively improve the indoor comfort and the system operation reliability.

[0120] In other embodiments, the first air outlet and the second air outlet can also be respectively provided with corresponding air deflectors, and the opening or closing of each air outlet is independently adjusted by the corresponding air deflector. Then, the corresponding air deflector of the first air outlet can be controlled to open the first air outlet, and the corresponding air deflector of the second air outlet can be controlled to open the second air outlet.

[0121] Based on any of the above embodiments, in the third embodiment of the present application, the same or similar contents as the above embodiments can be referred to the above description, and the subsequent will not be described in detail. On this basis, referring to Figure 6 , the indoor heat exchanger is arranged in the indoor air duct, and before the step of controlling the indoor unit to increase the air volume, the method further includes step S31:

[0122] Step S31, in the case that the temperature parameter is less than the preset temperature, obtaining the heat exchanger temperature of the indoor heat exchanger;

[0123] The step of controlling the indoor unit to increase the air volume includes step S32:

[0124] Step S32, according to the heat exchanger temperature, the indoor unit is controlled to increase the air volume, and the air volume is negatively correlated with the heat exchanger temperature.

[0125] In this embodiment, according to the heat exchanger temperature, the air outlet assembly is controlled to run so that the first air outlet and the second air outlet are both opened; wherein different heat exchanger temperatures correspond to different air volumes of the indoor unit.

[0126] In this embodiment, different heat exchanger temperatures correspond to different air deflection states of the air outlet assembly.

[0127] In this embodiment, the air volume of the first air outlet is negatively correlated with the heat exchanger temperature, that is, the lower the temperature of the heat exchanger, the greater the air volume of the first air outlet; and / or, the air volume of the second air outlet is negatively correlated with the heat exchanger temperature, that is, the lower the temperature of the heat exchanger, the greater the air volume of the second air outlet.

[0128] In the embodiment, the indoor unit comprises an air outlet assembly, the air outlet assembly comprises a first switch door and a second switch door, the first air outlet comprises a first air outlet area and a second air outlet area, the first switch door is configured to adjust the air volume of the first air outlet area, and the second switch door is configured to adjust the air volume of the second air outlet area and the second air outlet, in the case that the temperature of the heat exchanger is greater than or equal to a preset heat exchanger temperature, the first switch door is controlled to open the first air outlet area, and the second switch door is controlled to shield the second air outlet area and open the second air outlet; in the case that the temperature of the heat exchanger is less than the preset heat exchanger temperature, the first switch door is controlled to open the first air outlet area, and the second switch door is controlled to open the second air outlet area and the second air outlet. That is, when the temperature of the indoor heat exchanger is high, part of the first air outlet is opened and part of the first air outlet is shielded, when the temperature of the indoor heat exchanger is low, the first air outlet is fully opened, and the second air outlet is kept open.

[0129] The preset heat exchanger temperature is set based on the protection temperature of the indoor heat exchanger against freezing, and the preset heat exchanger temperature is less than the preset temperature corresponding to the air outlet temperature.

[0130] The first switch door opens the first air outlet area to a position at which the air resistance is the smallest.

[0131] The air guide angle of the second switch door when the second switch door opens the second air outlet area and the second air outlet can be a preset fixed angle, or can be an angle determined according to the actual operation of the system. In one implementation, the second switch door can be preset to run at an air guide angle, and the preset air guide angle is a position at which the air resistance of the first air outlet and the second air outlet is the smallest when the first air outlet and the second air outlet are both open. In another implementation, before the step of controlling the second switch door to open the second air outlet area and the lower air outlet, the method further comprises: determining a target air guide angle of the second switch door according to the temperature of the heat exchanger; and the step of controlling the second switch door to open the second air outlet area and the lower air outlet comprises: controlling the second switch door to open the second air outlet area and the lower air outlet at the target air guide angle. The air volume of the first air outlet corresponding to the target air guide angle is negatively correlated with the temperature of the heat exchanger, and the air volume of the second air outlet is constant.

[0132] In the embodiment, the indoor unit is controlled to increase the air volume according to the temperature of the indoor heat exchanger, which is beneficial to further improve the comfort of the air outlet temperature.

[0133] In other embodiments, when the air outlet in the indoor unit is one, the air guide angle of the air guide plate corresponding to the air outlet can also be increased according to the temperature of the indoor heat exchanger.

[0134] In a feasible embodiment, when the heat exchanger temperature is lower than the preset heat exchanger temperature, while or after the step of controlling the first switch door to open the first air outlet area and controlling the second switch door to open the second air outlet area and the second air outlet is performed, the method further includes:

[0135] The compressor connected to the indoor unit is controlled to operate at a reduced frequency, and / or the indoor fan in the indoor unit is controlled to operate at a higher speed.

[0136] The frequency adjustment parameter when the compressor reduces the frequency may be a preset fixed value, or a value determined according to the actual operation of the indoor unit.

[0137] The speed adjustment parameter when the indoor fan increases its speed may be a preset fixed value, or a value determined according to the actual operation of the indoor unit.

[0138] In this embodiment, the frequency adjustment parameters of the compressor and / or the speed adjustment parameters of the indoor fan can be determined based on the current first air guide angle of the first opening and closing door and the current second air guide angle of the second opening and closing door. The compressor can be controlled to operate at a lower frequency based on the determined frequency adjustment parameters, and the indoor fan can be controlled to operate at an increased speed based on the determined speed adjustment parameters.

[0139] In other embodiments, before step S20, the environmental conditioning system is controlled to operate in cooling mode, the first switch door is controlled to open the first air outlet area, and the second switch door is controlled to block the second air outlet area and open the second air outlet; then step S30 includes: when the temperature parameter is less than the preset temperature, the first switch door is controlled to open the first air outlet area, and the second switch door is controlled to open the second air outlet area and the second air outlet.

[0140] Based on any of the above embodiments, in this embodiment, the indoor unit also includes a first air guide component, and the first air guide component is configured to open or close the second air outlet. When the environmental conditioning system starts the oil return operation, before the step of obtaining the temperature parameters, it also includes: controlling the first air guide component to open the second air outlet in the cooling mode.

[0141] Wherein, when the temperature parameter is less than the preset temperature or greater than or equal to the preset temperature, the first air guide component maintains the second air outlet open.

[0142] In this embodiment, when the first air guide component is provided, the second air outlet is opened through the first air guide component, which is conducive to ensuring the normal operation of the cooling mode.

[0143] Based on any of the above embodiments, in the present embodiment, the indoor unit further comprises a second air guide assembly configured to open or close the first air outlet, and before the step of obtaining the temperature parameter in the case that the environmental regulation system starts the oil return operation, the method further comprises: controlling the second air guide assembly to open the first air outlet in the refrigeration mode.

[0144] In the case that the temperature parameter is less than the preset temperature or greater than or equal to the preset temperature, the second air guide assembly maintains the first air outlet open.

[0145] In the present embodiment, the first air outlet is opened by the second air guide assembly when the second air guide assembly is provided, which is conducive to ensuring the normal operation of the refrigeration mode.

[0146] It should be noted that the above examples are only used to understand the present application and do not constitute a limitation on the control method of the environmental regulation system of the present application. More forms of simple transformation based on the technical concept are within the protection scope of the present application.

[0147] The present application provides a computer readable storage medium having computer readable program instructions (i.e. computer programs) stored thereon, the computer readable program instructions being used to execute the control method of the environmental regulation system in the above embodiments.

[0148] The computer readable storage medium provided by the present application may, for example, be a U disk, but is not limited to an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, system or device, or any combination of the above. More specific examples of the computer readable storage medium can include, but are not limited to: an electrical connection with one or more conductive wires, a portable computer disk, a hard disk, a random access memory (RAM: Random Access Memory), a read-only memory (ROM: Read Only Memory), an erasable programmable read-only memory (EPROM: Erasable Programmable Read Only Memory or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM: CD-Read Only Memory), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present embodiment, the computer readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, system or device. The program code contained on the computer readable storage medium can be transmitted by any appropriate medium, including but not limited to: electrical wires, optical cables, RF (Radio Frequency: Radio Frequency), etc., or any suitable combination of the above.

[0149] The computer readable storage medium can be included in the environment conditioning system, or can exist independently and not be assembled into the environment conditioning system.

[0150] The computer readable storage medium carries one or more programs, and when the one or more programs are executed by the environment conditioning system, the environment conditioning system performs the following processes: controlling the environment conditioning system to run in a refrigeration mode; obtaining a temperature parameter representing an outlet air temperature of the indoor unit when the environment conditioning system starts an oil return operation; and controlling the indoor unit to increase an outlet air volume when the temperature parameter is less than a preset temperature.

[0151] The computer program code for carrying out operations of the present application can be written in one or more programming languages or combinations of languages including object oriented programming languages such as Java, Smalltalk, C++ or conventional procedural programming languages such as the "C" programming language or similar programming languages. The program code can execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the latter scenario, the remote computer can be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or the connection can be made to an external computer (for example, through the Internet using an Internet Service Provider).

[0152] The readable storage medium provided by the present application is a computer readable storage medium, which stores computer readable program instructions (i.e., a computer program) for executing the control method of the environment conditioning system, and can solve the technical problem of how to improve indoor comfort and system operation reliability. Compared with the prior art, the computer readable storage medium provided by the present application has the same beneficial effects as the control method of the environment conditioning system provided by the above embodiments, and will not be described here.

[0153] The computer program product of the present application can be a computer program embodied on a non-transitory computer readable medium. Such non-transitory computer readable medium can include, but is not limited to, floppy diskettes, CD-ROMs, DVDs, flash memories, memory sticks, and hard drives.

[0154] It should be understood that each part of the present application can be realized by hardware, software, firmware, or a combination thereof. The modules described in the embodiments of the present application can be realized by software or hardware. In some cases, the name of the module does not constitute a limitation on the module itself. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0155] The above only describes some embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation made by using the content of the present application specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A control method for an environmental conditioning system, characterized in that: The environmental conditioning system includes an indoor unit, and the method includes: Controlling the environmental conditioning system to operate in a cooling mode; When the environmental conditioning system starts oil return operation, obtaining a temperature parameter, the temperature parameter representing the air outlet temperature of the indoor unit; When the temperature parameter is lower than a preset temperature, the indoor unit is controlled to increase the air output.

2. The method according to claim 1, wherein The indoor unit includes a first air outlet and a second air outlet. When the rotation speeds of the indoor fans in the indoor unit are the same, the air volume of the first air outlet is greater than the air volume of the second air outlet. Before the step of obtaining the temperature parameter when the environmental conditioning system starts oil return operation, the method further includes: The environmental conditioning system is controlled to operate in a cooling mode, and the indoor unit is controlled to operate so that the first air outlet is closed and the second air outlet is opened.

3. The method according to claim 2, wherein The indoor unit includes a first opening and closing door and a second opening and closing door, the first air outlet includes a first air outlet area and a second air outlet area, the first opening and closing door is configured to adjust the air outlet volume of the first air outlet area, and the second opening and closing door is configured to adjust the air outlet volume of the second air outlet area and the second air outlet, and the step of controlling the operation of the indoor unit to close the first air outlet and open the second air outlet includes: The first opening and closing door is controlled to block the first air outlet area, and the second opening and closing door is controlled to block the second air outlet area.

4. The method according to claim 2, wherein The step of controlling the indoor unit to increase the air output volume comprises: The indoor unit is controlled to operate so that both the first air outlet and the second air outlet are opened.

5. The method according to claim 4, wherein The indoor unit includes a first opening and closing door and a second opening and closing door, the first air outlet includes a first air outlet area and a second air outlet area, the first opening and closing door is configured to adjust the air outlet volume of the first air outlet area, and the second opening and closing door is configured to adjust the air outlet volume of the second air outlet area and the second air outlet, and the step of controlling the operation of the indoor unit so that both the first air outlet and the second air outlet are open includes: Controlling the first opening and closing door to open the first air outlet area, and controlling the second opening and closing door to block the second air outlet area and open the second air outlet; Alternatively, the first opening and closing door is controlled to open the first air outlet area, and the second opening and closing door is controlled to open the second air outlet area and the second air outlet.

6. The method according to claim 2, wherein Before the step of controlling the indoor unit to increase the air output, the method further includes: When the temperature parameter is less than a preset temperature, obtaining the heat exchanger temperature of the indoor heat exchanger; The step of controlling the indoor unit to increase the air output volume comprises: The indoor unit is controlled to increase the air output according to the temperature of the heat exchanger, and the air output is negatively correlated with the temperature of the heat exchanger.

7. The method according to claim 6, wherein The indoor unit includes a first opening and closing door and a second opening and closing door, the first air outlet includes a first air outlet area and a second air outlet area, the first opening and closing door is configured to adjust the air outlet volume of the first air outlet area, and the second opening and closing door is configured to adjust the air outlet volume of the second air outlet area and the second air outlet, and the step of controlling the operation of the indoor unit so that both the first air outlet and the second air outlet are open includes: When the heat exchanger temperature is greater than or equal to a preset heat exchanger temperature, controlling the first switch door to open the first air outlet area, and controlling the second switch door to block the second air outlet area and open the second air outlet; When the heat exchanger temperature is lower than the preset heat exchanger temperature, the first opening and closing door is controlled to open the first air outlet area, and the second opening and closing door is controlled to open the second air outlet area and the second air outlet.

8. The method according to claim 7, wherein When the heat exchanger temperature is lower than the preset heat exchanger temperature, while or after the step of controlling the first switch door to open the first air outlet area and controlling the second switch door to open the second air outlet area and the second air outlet is performed, the method further includes: The compressor connected to the indoor unit is controlled to operate at a reduced frequency, and / or the indoor fan in the indoor unit is controlled to operate at a higher speed.

9. The method according to any one of claims 1 to 8, characterized in that After the step of controlling the environmental conditioning system to operate in cooling mode, the method further includes: The step of obtaining the temperature parameter is performed when the environmental conditioning system starts the oil return operation and the oil return frequency of the compressor is greater than the operating frequency of the compressor before the oil return operation.

10. An environmental conditioning system, characterized in that: The environmental conditioning system includes an indoor unit and a control device, the indoor unit is connected to the control device, and the control device includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program is configured to implement the steps of the control method of the environmental conditioning system according to any one of claims 1 to 9.

11. The environmental conditioning system according to claim 10, wherein: The indoor unit includes a first air outlet and a second air outlet, the area of ​​the first air outlet is larger than the area of ​​the second air outlet, and / or the air outlet direction of the indoor fan in the indoor unit is toward the first air outlet and not toward the second air outlet.

12. The environmental conditioning system according to claim 11, wherein: The first air outlet is provided on a side panel of the indoor unit, and the second air outlet is provided on a bottom panel of the indoor unit.

13. A storage medium, characterized in that: The storage medium is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, the steps of the control method of the environmental conditioning system according to any one of claims 1 to 9 are implemented.

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