CN112303828B - Air conditioner indoor unit, control method and device and readable storage medium - Google Patents

Air conditioner indoor unit, control method and device and readable storage medium Download PDF

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Publication number
CN112303828B
CN112303828B CN201910705117.2A CN201910705117A CN112303828B CN 112303828 B CN112303828 B CN 112303828B CN 201910705117 A CN201910705117 A CN 201910705117A CN 112303828 B CN112303828 B CN 112303828B
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Prior art keywords
air
wind
indoor unit
vortex ring
heat exchange
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CN112303828A (en
Inventor
周向阳
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Midea Group Co Ltd
GD Midea Air Conditioning Equipment Co Ltd
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Midea Group Co Ltd
GD Midea Air Conditioning Equipment Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/56—Remote control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/65—Electronic processing for selecting an operating mode
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/20—Heat-exchange fluid temperature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

The invention provides an air conditioner indoor unit, a control method and a control device thereof and a readable storage medium, wherein the air conditioner indoor unit comprises a shell, a vortex ring generating piece, a first heat exchange branch and a second heat exchange branch, wherein a first air duct and a second air duct are arranged in the shell; the vortex ring generating piece is arranged in the first air channel and is provided with an air inlet end and an air outlet end, and the air inlet area of the air inlet end is larger than the air outlet area of the air outlet end; a first heat exchanger and a first expansion valve are arranged on the first heat exchange branch; the second heat exchange branch is connected with the first heat exchange branch in parallel, and a second heat exchanger and a second expansion valve are arranged on the second heat exchange branch. Therefore, the technical scheme provided by the invention can form vortex air through the air blown out from the air outlet of the first air channel, namely the blown air can not continuously blow the user directly, so that the user is in a comfortable environment; and the refrigerant flow of the first heat exchanger is controlled by arranging the first expansion valve so as to select the air supply temperature of the vortex ring air, so that the user experience is improved.

Description

Air conditioner indoor unit, control method and device and readable storage medium
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner indoor unit, a control method and a control device of the air conditioner indoor unit and a readable storage medium.
Background
With the social development and the continuous improvement of the living standard of people, the requirements of people on the living quality are higher and higher. People pay more and more attention to the comfort of living environment, and environment conditioning electric appliances such as air conditioners become one of indispensable electrical equipment in daily life of people.
The existing air conditioners are used for supplying air conventionally, and the air after heat exchange is directly blown out through conventional air openings of the air conditioners, namely, the air blown out by the air conditioners is fixed and unchangeable, so that users have obvious continuous wind feeling and are easy to cause discomfort, and the user experience is influenced.
Disclosure of Invention
The invention mainly aims to provide an air conditioner indoor unit, a control method and a control device thereof, and a computer readable storage medium, which solve the problems that the air blown out by the air conditioner is fixed and unchangeable, so that a user has obvious continuous wind feeling and is easy to cause discomfort.
In order to achieve the above object, the present invention provides an indoor unit of an air conditioner, including:
the air conditioner comprises a shell, a first air duct and a second air duct, wherein the first air duct and the second air duct are arranged in the shell;
the vortex ring generating element is arranged in the first air channel and is provided with an air inlet end and an air outlet end, and the air inlet area of the air inlet end is larger than the air outlet area of the air outlet end so as to form vortex ring wind from the wind blown out from the air outlet of the first air channel;
the first heat exchange branch is arranged in the first air duct, and a first heat exchanger and a first expansion valve for controlling the flow of a refrigerant of the first heat exchanger are arranged on the first heat exchange branch;
and the second heat exchange branch is arranged in the second air duct, is connected with the first heat exchange branch in parallel, and is provided with a second heat exchanger and a second expansion valve for controlling the flow of the refrigerant of the second heat exchanger.
Optionally, the vortex ring generator comprises a wind shielding part and a driving part, the wind shielding part is movably connected to the wind inlet end, the driving part is connected to the wind shielding part, and the driving part drives the wind shielding part to open or close the wind inlet end.
Optionally, the wind-guiding piece is wind-guiding blade, the air conditioning indoor unit further comprises a connecting rod used for connecting the wind-guiding blade with the driving piece, the wind-guiding blade is connected to the air inlet end, and the driving piece drives the connecting rod to rotate, so that the wind-guiding blade is opened or closed to the air inlet end.
Optionally, the vortex ring generator further comprises a rectifying grid, and the rectifying grid is arranged between the wind guide blades and the wind inlet end of the vortex ring generator.
Optionally, a first temperature sensing bulb for monitoring the evaporation temperature of the first heat exchanger is further arranged on the first heat exchange branch, and a second temperature sensing bulb for monitoring the evaporation temperature of the second heat exchanger is further arranged on the second heat exchange branch
Optionally, the indoor unit of the air conditioner further includes a first fan and a second fan, and the first fan is installed in the casing, so that air entering from the air inlet of the first air duct is blown out from the air outlet of the first air duct; the second fan is arranged in the shell, so that the air entering from the air inlet of the second air duct is blown out from the air outlet of the second air duct.
In order to achieve the above object, an embodiment of the present invention further provides a control method for an air conditioning indoor unit, where the control method for an air conditioning indoor unit includes:
when an instruction of entering a pulse mode is received, a pulse signal corresponding to the instruction is output to a vortex ring generating piece to generate vortex ring wind;
acquiring a first air supply temperature of an air outlet of a first air duct;
and controlling the opening degree of a first expansion valve according to the first air supply temperature, so that the air outlet of the first air duct supplies air at the temperature corresponding to the first air supply temperature.
Optionally, the vortex ring generator includes a wind shielding member and a driving member, and the step of outputting a pulse signal corresponding to the command to the vortex ring generator when receiving the command to enter the pulse mode to generate the vortex ring wind includes:
when an instruction for entering a pulse mode is received, acquiring a pulse signal corresponding to the instruction;
and outputting the pulse signal to the driving piece to enable the driving piece to drive the wind shielding piece to move so as to form vortex wind from the wind blown out of the air outlet of the first air channel.
Optionally, when receiving an instruction to enter a pulse mode, the method for controlling an indoor unit of an air conditioner further includes:
acquiring the air supply distance of an air outlet of the first air duct;
confirming the target rotating speed of the first fan according to the air supply distance;
and controlling the first fan to operate at the target rotating speed.
Optionally, the control method of the indoor unit of the air conditioner further includes:
acquiring a second air supply temperature of an air outlet of a second air duct;
and controlling the opening degree of a second expansion valve according to the second air supply temperature so that the air outlet of the second air duct supplies air at the temperature corresponding to the second air supply temperature.
In order to achieve the above object, the present invention further provides a control device for an indoor unit of an air conditioner, where the control device for an indoor unit of an air conditioner includes a memory, a processor, and a control program of an indoor unit of an air conditioner, the control program being stored in the memory and being executable on the processor, and the steps of the control method for an indoor unit of an air conditioner are implemented when the processor executes the control program of the indoor unit of an air conditioner.
In order to achieve the above object, the present invention further provides a readable storage medium, where a control program of an air conditioner indoor unit is stored, and when the control program of the air conditioner indoor unit is executed by a processor, the steps of the control method of the air conditioner indoor unit are implemented.
The embodiment of the invention provides an air conditioner indoor unit, a control method and a control device thereof and a readable storage medium, wherein the air conditioner indoor unit comprises a shell, a vortex ring generating piece, a first heat exchange branch and a second heat exchange branch, wherein a first air duct and a second air duct are arranged in the shell; the vortex ring generating element is arranged in the first air channel and is provided with an air inlet end and an air outlet end, and the air inlet area of the air inlet end is larger than the air outlet area of the air outlet end so as to form vortex ring air from the air outlet of the first air channel; the first heat exchange branch is arranged in the first air duct, and a first heat exchanger and a first expansion valve for controlling the refrigerant flow of the first heat exchanger are arranged on the first heat exchange branch; the second heat exchange branch is arranged in the second air duct and is connected with the first heat exchange branch in parallel, and a second heat exchanger and a second expansion valve used for controlling the flow of the refrigerant of the second heat exchanger are arranged on the second heat exchange branch. In this way, the technical scheme provided by this embodiment can form vortex ring wind by setting the vortex ring generating element to blow wind at the air outlet of the first air duct, that is, the blown wind does not continuously blow directly to the user, so that the user is in a relatively comfortable environment; the flow of the refrigerant of the first heat exchanger is controlled by arranging the first expansion valve so as to select the air supply temperature of the vortex ring air, so that the user experience is improved; and the second heat exchanger is controlled by arranging a second expansion valve to realize normal refrigeration or heating.
Drawings
In order to more clearly illustrate the embodiments or exemplary technical solutions of the present invention, the drawings used in the embodiments or exemplary descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of an apparatus in a hardware operating environment according to an embodiment of the present invention;
fig. 2 is a schematic structural view of an indoor unit of an air conditioner according to an embodiment of the present invention;
fig. 3 is a sectional view of an indoor unit of an air conditioner according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a vortex ring generator according to an embodiment of the present invention;
FIG. 5 is a schematic piping diagram of a first heat exchange branch and a second heat exchange branch according to an embodiment of the present invention;
FIG. 6 is a flowchart illustrating steps of a control method for an indoor unit of an air conditioner according to a first embodiment of the present invention;
FIG. 7 is a flowchart illustrating steps of a control method for an indoor unit of an air conditioner according to a second embodiment of the present invention;
FIG. 8 is a flowchart illustrating steps of a third embodiment of a method for controlling an indoor unit of an air conditioner according to the present invention;
fig. 9 is a flowchart illustrating steps of a fourth embodiment of a method for controlling an indoor unit of an air conditioner according to the present invention.
The reference numbers illustrate:
Figure BDA0002147842300000041
Figure BDA0002147842300000051
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, fig. 1 is a schematic diagram of a hardware operating environment of a terminal according to an embodiment of the present invention.
As shown in fig. 1, the terminal may include: a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, a communication bus 1002. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display (Display), an input unit such as a Keyboard (Keyboard), a remote controller, and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (such as a non-volatile memory), such as a disk memory. The memory 1005 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the configuration of the terminal shown in fig. 1 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, the memory 1005, which is a kind of computer storage medium, may include an operating system, a network communication module, a user interface module, and a control program of the indoor unit of the air conditioner.
In the terminal shown in fig. 1, the network interface 1004 is mainly used for connecting to a backend server and performing data communication with the backend server; the user interface 1003 is mainly used for connecting a client (user side) and performing data communication with the client; and the processor 1001 may be configured to call the control program of the indoor unit of the air conditioner stored in the memory 1005, and perform the following operations:
when an instruction of entering a pulse mode is received, a pulse signal corresponding to the instruction is output to a vortex ring generating piece to generate vortex ring wind;
acquiring a first air supply temperature of an air outlet of a first air duct;
and controlling the opening degree of a first expansion valve according to the first air supply temperature, so that the air outlet of the first air duct supplies air at the temperature corresponding to the first air supply temperature.
Further, the processor 1001 may call the control program of the indoor unit of the air conditioner stored in the memory 1005, and further perform the following operations:
when an instruction for entering a pulse mode is received, acquiring a pulse signal corresponding to the instruction;
and outputting the pulse signal to the driving piece to enable the driving piece to drive the wind shielding piece to move so as to form vortex wind from the wind blown out of the air outlet of the first air channel.
Further, the processor 1001 may call the control program of the indoor unit of the air conditioner stored in the memory 1005, and further perform the following operations:
acquiring the air supply distance of an air outlet of the first air duct;
confirming the target rotating speed of the first fan according to the air supply distance;
and controlling the first fan to operate at the target rotating speed.
Further, the processor 1001 may call the control program of the indoor unit of the air conditioner stored in the memory 1005, and further perform the following operations:
acquiring a second air supply temperature of an air outlet of a second air duct;
and controlling the opening degree of a second expansion valve according to the second air supply temperature so that the air outlet of the second air duct supplies air at the temperature corresponding to the second air supply temperature.
As shown in fig. 2 to 5, an embodiment of the invention provides an indoor unit of an air conditioner.
In one embodiment, as shown in fig. 2, 3 and 5, the indoor unit of the air conditioner includes a casing 1, a vortex ring generator 2, a first heat exchange branch 3 and a second heat exchange branch 4. Specifically, the housing 1 has a front panel 11 and a rear box 12, the front panel 11 and the rear box 12 enclose a ventilation cavity (not shown), and a first air duct and a second air duct are disposed inside the ventilation cavity, wherein the vortex ring generator 2 and the first heat exchange branch are respectively disposed in the first air duct, and the second heat exchange branch is disposed in the second air duct.
Further, the rear box 12 is provided with a plurality of air inlets 13, the front panel 11 is provided with a plurality of air outlets 13, at least one air inlet 14 and at least one air outlet 13 form a first air duct, and the rest of air inlets 14 and the rest of air outlets 13 form a second air duct, or at least one air inlet 14 and at least one air outlet 13 form a second air duct, and the rest of air inlets 14 and the rest of air outlets 13 form a first air duct, which is not limited herein.
It is understood that, in other embodiments, the number of the air inlets 14 is at least two, the number of the air outlets 13 is at least two, and the positions where the air outlets 13 are arranged may not be limited to being arranged on the front panel 11, and the positions where the air inlets 14 are arranged may not be limited to being arranged on the rear box 12, that is, the number and the positions of the air inlets 14 and the air outlets 13 are not limited in this embodiment.
Further, referring to fig. 4, the vortex ring generator 2 has an air inlet end 21 and an air outlet end 22, and the air inlet area of the air inlet end 21 is larger than the air outlet area of the air outlet end 22, so that the wind entering from the air inlet end 21 of the vortex ring generator 2 passes through the air outlet end 22 to form an annular wind, that is, the wind blown out from the air outlet 13 of the first air duct forms a vortex ring wind. The difference between the air inlet area of the air inlet end 21 and the air outlet area of the air outlet end 22 can be set according to actual requirements, and there is no limitation here.
Further, when the number of the air inlets 14 and the air outlets 13 is plural, the air inlet end 21 of the vortex ring generator 2 is communicated with the air inlet of the first air duct, and the air outlet end 22 of the vortex ring generator 2 is communicated with the air outlet of the first air duct, so that the air at the air inlet of the first air duct is blown out from the air outlet of the first air duct after passing through the vortex ring generator 2, the air inlet of the first air duct at least includes one air inlet 14, and the air outlet of the first air duct at least includes one air outlet 13. Taking a cabinet air-conditioning indoor unit as an example, the vortex ring generating element 2 is provided with the upper end inside the casing 1, that is, the air outlet 13 opposite to the vortex ring generating element 2 is provided at the upper end of the front panel 11, so that the air blown out from the air outlet 13 after passing through the vortex ring generating element 2 forms vortex ring air which can be sent to the far end indoors in an annular mode, that is, under the same air volume, the vortex ring element can blow the formed vortex ring air farther, thereby reducing the energy consumption of the air-conditioning indoor unit. It should be understood that the vortex ring generator 2 of the present embodiment is not limited to the cabinet type air conditioning indoor unit, and may be other types of air conditioning indoor units, such as a hanging type air conditioning indoor unit, and the like, and is not limited thereto.
Further, as shown in fig. 5, the first heat exchange branch 3 and the second heat exchange branch 4 are both heat exchange branches disposed on the casing 1 of the indoor unit of the air conditioner. The first heat exchange branch 3 is provided with a first heat exchanger 31 and a first expansion valve 32 for controlling the refrigerant flow of the first heat exchanger 31, the first heat exchanger 31 is arranged at an air inlet of the first air duct, the first heat exchanger 31 is provided with a refrigerant inlet end and a refrigerant outlet end, the refrigerant inlet end and the refrigerant outlet end of the first heat exchanger 31 are both connected with refrigerant pipes, and the first expansion valve 32 is arranged on the refrigerant pipe at the refrigerant inlet end of the first heat exchanger 31 and is configured to control the refrigerant flow entering the first heat exchanger 31; the second heat exchange branch 4 is provided with a second heat exchanger 41 and a second expansion valve 42 for controlling the refrigerant flow of the second heat exchanger 41, the second heat exchanger 41 is disposed at an air inlet of the second air duct, the second heat exchanger 41 has a refrigerant inlet end and a refrigerant outlet end, the refrigerant inlet end and the refrigerant outlet end of the second heat exchanger 41 are both connected to a refrigerant pipe, and the second expansion valve 42 is disposed on the refrigerant pipe at the refrigerant inlet end of the second heat exchanger 41 and configured to be used for controlling the refrigerant flow entering the second heat exchanger 41. The refrigerant inlet end and the refrigerant outlet end shown in fig. 5 are defined with respect to a flow direction of the refrigerant flowing through the indoor heat exchanger in the cooling mode.
Further, the first heat exchange branch 3 and the second heat exchange branch 4 are arranged in parallel, that is, the refrigerant inlet end of the first heat exchanger 31 and the refrigerant inlet end of the second heat exchanger 41 are connected to the inlet of the refrigerant pipe, the refrigerant outlet end of the first heat exchanger 31 and the refrigerant outlet end of the second heat exchanger 41 are connected to the outlet of the refrigerant pipe, wherein the inlet of the refrigerant pipe and the outlet of the refrigerant pipe are both communicated with the refrigerant pipe of the outdoor unit of the air conditioner through a pipeline and a communication valve, so as to realize the heat exchange of the air conditioner.
Further, the first heat exchanger 31 is located at the air inlet of the first air duct, so that the air at the air inlet of the first air duct passes through the first heat exchanger 31 and is blown out from the air outlet of the first air duct. When the first expansion valve 32 is in an open state, the air blown out from the air outlet of the first air duct is heat exchange vortex ring air, which can be specifically determined according to the operation mode of the indoor unit of the air conditioner, for example, when the indoor unit of the air conditioner operates in a cooling mode, the air at the air inlet of the first air duct passes through the first heat exchanger 31, and the air blown out from the air outlet of the first air duct is cold vortex ring air, wherein the cold vortex ring air is cold air which is air subjected to heat exchange by the first heat exchanger 31 in the cooling mode, and the cold air forms vortex ring air by the air blown out from the air outlet of the first air duct after passing through the vortex ring generator 2; when the air-conditioning indoor unit operates in the heating mode, air at the air inlet of the first air duct passes through the first heat exchanger 31, and air blown out from the air outlet of the first air duct is hot vortex ring air, wherein the hot vortex ring air is hot air after heat exchange is performed by the first heat exchanger 31 in the heating mode, and the hot air forms vortex ring air through the vortex ring generating member 2.
Further, when the first expansion valve 32 is in a closed state, that is, the air entering from the air inlet of the first air duct does not exchange heat at the first heat exchanger 31, and cold air or hot air is not formed when the air is blown out from the air outlet of the first air duct.
Further, the second heat exchanger 41 is located at the air inlet of the second air duct, so that the air at the air inlet of the second air duct passes through the second heat exchanger 41 and is blown out from the air outlet of the second air duct. When the second expansion valve 42 is in the open state, the air blown out from the air outlet of the second air duct is cold air or hot air, which can be specifically determined according to the operation mode of the indoor unit of the air conditioner, for example, when the indoor unit of the air conditioner operates in the cooling mode, the air at the air inlet of the second air duct passes through the second heat exchanger 41, and the air blown out from the air outlet of the second air duct is cold air; when the indoor unit of the air conditioner operates in the heating mode, the air at the air inlet of the second air duct passes through the second heat exchanger 41, and the air blown out from the air outlet of the second air duct is hot air. When the second expansion valve 42 is in a closed state, that is, the air entering from the air inlet of the second air duct does not exchange heat at the second heat exchanger 41, and cold air or hot air is not formed when the air is blown out from the air outlet of the second air duct.
In the embodiment of the invention, the air-conditioning indoor unit comprises a shell 1, a vortex ring generating piece 2, a first heat exchange branch 3 and a second heat exchange branch 4, wherein a first air duct and a second air duct are arranged in the shell 1; the vortex ring generating element 2 is arranged in the first air channel, the vortex ring generating element 2 is provided with an air inlet end 21 and an air outlet end 22, the air inlet area of the air inlet end 21 is larger than the air outlet area of the air outlet end 22, and the wind blown out from the air outlet of the first air channel forms vortex ring wind; the first heat exchange branch 3 is installed in the first air duct, and a first heat exchanger 31 and a first expansion valve 32 for controlling the refrigerant flow of the first heat exchanger 31 are arranged on the first heat exchange branch 3; the second heat exchange branch 4 is installed in the second air duct, the second heat exchange branch 4 is connected in parallel with the first heat exchange branch 3, and the second heat exchange branch 4 is provided with a second heat exchanger 41 and a second expansion valve 42 for controlling the refrigerant flow of the second heat exchanger 41. In this way, the technical solution provided by this embodiment can form vortex wind by setting the vortex ring generator 2 to blow wind at the air outlet of the first air duct, that is, the blown wind does not continuously blow directly to the user, so that the user is in a relatively comfortable environment; and the flow rate of the refrigerant of the first heat exchanger 31 is controlled by arranging the first expansion valve 32 to select the air supply temperature of the vortex ring air, so that the user experience is improved.
Further, as shown in fig. 3, the indoor unit of an air conditioner further includes a first fan 5, and the first fan 5 is installed in the casing 1, so that the air entering from the air inlet 14 of the first air duct is blown out from the air outlet 13 of the first air duct. And the first fan 5 is located between the vortex ring generating member 2 and the air inlet 14 of the first air duct, in this embodiment, by setting the operation parameters of the first fan 5, for example, increasing the operation speed, operation frequency, and the like of the first fan 5, the speed of the air entering the air inlet 14 of the first air duct can be increased, that is, the vortex ring air formed after the air passes through the vortex ring generating member 2 is blown out from the air outlet 13 of the first air duct at a higher speed.
Further, the air-conditioning indoor unit further includes a second fan 6, and the second fan 6 is installed in the casing 1, so that the air entering from the air inlet 14 of the second air duct is blown out from the air outlet 13 of the second air duct, that is, the second fan 6 is installed between the heat exchanger 7 and the air outlet 13 of the second air duct, in this embodiment, by setting the operation parameters of the second fan 6, for example, the operation speed, the operation frequency, and the like of the second fan 6 are increased, the speed of the air entering into the air inlet 14 of the second air duct can be increased, that is, the air is blown out from the air outlet 13 of the second air duct at a higher speed after passing through the heat exchanger 7.
In one embodiment, as shown in fig. 4, the vortex ring generator 2 includes a wind shielding member 23 and a driving member 24, the wind shielding member 23 is movably connected to the wind inlet end 21, the driving member 24 is connected to the wind shielding member 23, and the driving member 24 drives the wind shielding member 23 to open or close the wind inlet end 21, that is, the wind shielding member 23 is movably connected to the wind inlet end 21 of the vortex ring generator 2, so that the wind shielding member 23 can open or close the wind inlet end 21 of the vortex ring generator 2.
Specifically, when the wind shielding member 23 opens the wind inlet end 21 of the vortex ring generator 2, wind can be blown in from the wind inlet 14 of the first wind channel opposite to the wind inlet end 21 of the vortex ring generator 2, and the wind blown out from the wind outlet end 22 after passing through the vortex ring generator 2 forms vortex ring wind, and is blown into the room through the wind outlet 13 of the first wind channel opposite to the wind outlet end 22; when the wind shielding part 23 closes the wind inlet end 21 of the vortex ring generating part 2, wind cannot pass through the wind inlet end 21 of the vortex ring generating part 2, at this time, the first fan 5 is closed, wind cannot pass through the wind inlet end 21 of the vortex ring generating part 2, and wind enters the shell 1 from the rest of the wind inlets 14, such as the wind inlets of the second wind channel, and is blown out from the rest of the wind outlets 13 after being subjected to heat exchange through the second heat exchanger 41 of the second heat exchange branch 4 in the shell 1, so that the normal cooling or heating mode of the indoor unit of the air conditioner is realized.
Further, the driving member 24 is connected to the wind shielding member 23, and the driving member 24 drives the wind shielding member 23 to open or close the wind inlet end 21 of the vortex ring generator 2. The operation modes of the indoor unit of the air conditioner include multiple types, such as: a cooling mode, a heating mode, and a pulse mode. In this embodiment, taking the pulse mode of operation of the indoor unit of the air conditioner as an example, the initial state of the wind shielding member 23 is the closed state when the air conditioner is turned off, that is, the wind shielding member 23 is initially closed at the wind inlet end 21 of the vortex ring generator 2, and when the air conditioning indoor unit operates in the pulse mode, the driving member 24 drives the wind shielding member 23 to switch from the closed state to the open state, and the time of the wind shielding piece 23 in the opening state is 0.05 s-0.5 s, when the wind shielding piece 23 is in the closing state, high pressure is formed between the air inlet 13 and the wind shielding part 23, at the moment when the wind shielding part 23 is opened, the wind passing through the vortex ring generating part 2 is high-pressure wind, namely, the high-pressure wind flows into the air outlet end 22 with smaller area from the air inlet end 21 with larger area, so that the wind speed of the high-pressure wind is faster, the high-pressure wind is blown out from the air outlet 13 opposite to the air outlet end 22 to form vortex ring wind, namely, vortex ring air supply is realized after passing through the air outlet 13. Thereafter, the wind shielding member 23 is continuously driven to switch from the open state to the closed state to complete one of the whirlwind.
Alternatively, the time for which the wind shield 23 is in the open state is 0.1 s. However, in other embodiments, the time that the wind shielding member 23 is in the open state may be set to other values, and is not limited herein.
Further, the wind blowing out from the outlet 13 forms the vortex wind intermittently, that is, there is a certain interval time between each vortex wind, that is, the interval time is the time from the last opening of the wind shielding member 23 to the next opening of the wind shielding member 23. The interval time is more than 1s, and the setting can be specifically carried out according to the air conditioner indoor unit and the user requirements. Optionally, the interval time is 1.4 s. However, in other embodiments, the interval time may be set to other values, and is not limited herein.
Further, because still be provided with first heat transfer branch 3 in the first wind channel, when the wind that blows out at the air outlet 13 in first wind channel formed the vortex ring wind promptly, can be through controlling the refrigerant flow that first expansion valve 32 in first heat transfer branch 3 in order to control and get into first heat exchanger 31 to the wind of the air inlet end 21 that control gets into vortex ring emergence piece 2, the wind that makes the air inlet end 21 that gets into vortex ring emergence piece 2 can be for one of cold wind, hot-blast or indoor temperature wind, thereby the user is with multiple air supply selection, promote user's experience.
Further, when the first heat exchanging branch 4 operates in the cooling or heating mode, the driving member 24 drives the wind shielding member 23 to maintain the open state or the closed state. When the driving part 24 drives the wind shielding part 23 to be kept in an open state, the air outlet corresponding to the vortex ring generating part 2 is opened long, the first fan 5 operates according to the preset air quantity and the corresponding operating wind speed, and the disturbance of indoor air is increased, so that the refrigerating or heating effect is improved; when the driving member 24 drives the wind shielding member 23 to be kept in the closed state, no wind blows out from the wind outlet corresponding to the vortex ring generator 2.
Further, when the wind shielding member 23 is in the open state, normal pressure is maintained between the air inlet 14 and the wind shielding member 23, that is, high pressure is not formed between the air inlet 14 and the wind shielding member 23, and vortex ring wind is not formed at the air outlet 13 opposite to the air outlet end 22, and at this time, the air outlet 13 realizes normal room-temperature air supply. Namely, the vortex ring air supply is intermittent air supply, the air is annularly supplied to the far end in the room, the vortex ring air supply can blow the air farther under the same air quantity, and the energy consumption of the indoor unit of the air conditioner can be reduced.
Furthermore, the wind shielding member 23 is a wind guiding blade, the air-conditioning indoor unit further includes a connecting rod (not shown) for connecting the wind guiding blade and the driving member 24, the wind guiding blade is connected to the air inlet end 21, and the driving member 24 drives the connecting rod to rotate, so that the wind guiding blade opens or closes the air inlet end 21. As shown in fig. 5, the wind shielding member 23 further includes a wind guiding frame 231, the wind guiding frame 231 is connected to the wind inlet end 21, and the wind guiding frame 231 is used for fixing the wind guiding blade, that is, the wind guiding blade is connected to the inside of the wind guiding frame 231.
Further, in order to make the flow rate of the air blown out from the air outlet end 22 of the vortex ring generator 2 uniform, the indoor unit of the air conditioner further includes a rectification grille 7, the rectification grille 7 is disposed between the air guide blade and the air inlet end 21 of the vortex ring generator 2, specifically, the rectification grille 7 is disposed between the air guide frame 41 and the air inlet end 21 of the vortex ring generator 2, and is used for rectifying the air entering from the air guide blade, so that when the air enters the vortex ring generator 2, the flow rate of the air is relatively uniform, that is, the air outlet 13 corresponding to the air outlet end 22 of the vortex ring generator 2 blows out the air with uniform air speed, thereby forming vortex ring air.
Further, the driving member 24 includes a rack 241, a sliding slot 242 and a gear 243, the rack 241 is slidably connected to the sliding slot 242, a through hole 2421 is opened at the bottom of the sliding slot 242, a tooth of the gear 243 passes through the through hole 2421 to mesh with a tooth of the rack 241, and the gear 243 is rotatably connected to the connecting rod. The driving member 24 further includes a linkage 244, and the linkage 244 is connected to the rack 241, so that the linkage 244 can slide in the sliding slot 242 through the rack 241, and the gear 243 can be rotated through the sliding of the rack 241, so as to drive the connecting rod to rotate, and the rotation of the connecting rod can pull the air guide vane to open or close.
Further, the linkage 244 is an electromagnet. However, in other embodiments, other interlocking devices may be used, and are not limited herein.
In an embodiment, as shown in fig. 3, the number of the air outlets 13 and the air inlets 14 is two, for example, the housing 1 is provided with a first air outlet 13a and a first air inlet 14a which are communicated with each other, and a second air outlet 13b and a second air inlet 14b which are communicated with each other, a first air duct is formed between the first air outlet 13a and the first air inlet 14a, a second air duct is formed between the second air outlet 13b and the second air inlet 14b, that is, the front panel 11 of the housing 1 is provided with the first air outlet 13a and the second air outlet 13b, and the rear box 12 of the housing 1 is provided with the first air inlet 14a and the second air inlet 14 b; the first heat exchanger 31 and the vortex ring generator 2 are disposed between the first air inlet 14a and the first air outlet 13a, and the second heat exchanger 41 is disposed between the second air inlet 14b and the second air outlet 13 b.
The cooling air supply mode includes, but is not limited to, a cooling mode, a dehumidification mode, an automatic cooling mode, and the like, and the heating air supply mode includes, but is not limited to, a heating mode, an automatic heating mode, and the like.
Of course, the indoor unit of the air conditioner is not limited to the structure in the above embodiment, and may also include other structures, such as a base and a top cover, which are not described herein again. Wherein, the dashed arrow in fig. 3 indicates the wind flowing direction of the second wind inlet 14 b.
Further, as shown in fig. 5, the first heat exchange branch 3 is further provided with a first thermal bulb 33 for monitoring an evaporation temperature of the first heat exchanger 31, the first thermal bulb 33 is connected to the first expansion valve 32, and the first thermal bulb 33 is disposed on a refrigerant pipe connected to a refrigerant outlet of the first heat exchanger 31, and is configured to monitor temperature information of the evaporation temperature of the first heat exchanger 31, convert the temperature information into pressure information, and transmit the pressure information to the first expansion valve 32, so that the first expansion valve 32 can adjust a flow rate of the refrigerant entering the first heat exchanger 31.
Further, the second heat exchange branch 4 is further provided with a second thermal bulb 43 for monitoring the evaporation temperature of the second heat exchanger 41, the second thermal bulb 43 is connected to the second expansion valve 42, and the second thermal bulb 43 is disposed on a refrigerant pipe connected to a refrigerant outlet of the second heat exchanger 41, and is configured to monitor the temperature information of the evaporation temperature of the second heat exchanger 41, convert the temperature information into pressure information, and transmit the pressure information to the second expansion valve 42, so that the second expansion valve 42 can adjust the flow rate of the refrigerant entering the second heat exchanger 41.
In the embodiment of the invention, the air-conditioning indoor unit comprises a shell 1, a vortex ring generating piece 2, a first heat exchange branch 3 and a second heat exchange branch 4, wherein a first air duct and a second air duct are arranged in the shell 1; the vortex ring generating element 2 is arranged in the first air channel, the vortex ring generating element 2 is provided with an air inlet end 21 and an air outlet end 22, the air inlet area of the air inlet end 21 is larger than the air outlet area of the air outlet end 22, and the wind blown out from the air outlet of the first air channel forms vortex ring wind; the first heat exchange branch 3 is installed in the first air duct, and a first heat exchanger 31 and a first expansion valve 32 for controlling the refrigerant flow of the first heat exchanger 31 are arranged on the first heat exchange branch 3; the second heat exchange branch 4 is installed in the second air duct, the second heat exchange branch 4 is connected in parallel with the first heat exchange branch 3, and the second heat exchange branch 4 is provided with a second heat exchanger 41 and a second expansion valve 42 for controlling the refrigerant flow of the second heat exchanger 41. In this way, the technical solution provided by this embodiment can form vortex wind by setting the vortex ring generator 2 to blow wind at the air outlet of the first air duct, that is, the blown wind does not continuously blow directly to the user, so that the user is in a relatively comfortable environment; and the flow rate of the refrigerant of the first heat exchanger 31 is controlled by arranging the first expansion valve 32 to select the air supply temperature of the vortex ring air, so that the user experience is improved.
Based on the air-conditioning indoor unit in the above embodiment, as shown in fig. 2 to 5, the air-conditioning indoor unit includes a casing 1, a vortex ring generating member 2, a first heat exchange branch 3, and a second heat exchange branch 4, and a first air duct and a second air duct are provided in the casing 1; the vortex ring generating element 2 is arranged in the first air channel, the vortex ring generating element 2 is provided with an air inlet end 21 and an air outlet end 22, the air inlet area of the air inlet end 21 is larger than the air outlet area of the air outlet end 22, and the wind blown out from the air outlet of the first air channel forms vortex ring wind; the first heat exchange branch 3 is installed in the first air duct, and a first heat exchanger 31 and a first expansion valve 32 for controlling the refrigerant flow of the first heat exchanger 31 are arranged on the first heat exchange branch 3; the second heat exchange branch 4 is installed in the second air duct, the second heat exchange branch 4 is connected in parallel with the first heat exchange branch 3, and the second heat exchange branch 4 is provided with a second heat exchanger 41 and a second expansion valve 42 for controlling the refrigerant flow of the second heat exchanger 41.
As shown in fig. 6, the present invention further provides a first embodiment of a control method for an air conditioning indoor unit, where the control method for the air conditioning indoor unit includes the following steps:
s1, when receiving an instruction of entering a pulse mode, outputting a pulse signal corresponding to the instruction to a vortex ring generating piece to generate vortex ring wind;
s2, acquiring a first air supply temperature of an air outlet of the first air duct;
and S3, controlling the opening degree of a first expansion valve according to the first air supply temperature, and enabling the air outlet of the first air duct to supply air at the first air supply temperature.
In an embodiment, a user may set an operation mode of the indoor unit of the air conditioner according to a remote controller or a key or a terminal linked with the indoor unit of the air conditioner, for example, the user may select a cooling mode, a heating mode, a pulse mode, etc. through the remote controller or the key or the terminal. When the user selects the pulse mode, the indoor unit of the air conditioner can receive an instruction for entering the pulse mode, and at the moment, the instruction is executed by an electric control board of the indoor unit of the air conditioner, namely, the indoor unit of the air conditioner is controlled to enter the pulse mode.
Further, when receiving a command for entering the pulse mode, a pulse signal corresponding to the command is output to the vortex ring generator 2 to generate vortex ring wind. That is, when the vortex ring generator 2 receives the pulse signal, the wind entering from the wind inlet end 21 of the vortex ring generator 2 can pass through the vortex ring generator 2, and then vortex ring wind is formed at the wind outlet end 22 of the vortex ring generator 2, that is, the wind blown out from the wind outlet of the first wind channel corresponding to the wind outlet end 22 of the vortex ring generator 2 forms vortex ring wind.
Further, after the vortex ring air is formed at the air outlet of the first air duct, a first air supply temperature of the air outlet of the first air duct is obtained, wherein the first air supply temperature can also be set according to a remote controller or a key or a terminal linked with an indoor unit of the air conditioner. In this embodiment, the first air supply temperature includes an indoor temperature and a heat exchange temperature after heat exchange by the first heat exchanger 31, the indoor temperature is a room temperature, and the heat exchange temperature includes cold air blown by the first heat exchanger 31 during cooling and hot air blown by the first heat exchanger 31 during heating.
Further, the opening degree of the first expansion valve is controlled according to the first air supply temperature, so that the air blown out of the air outlet of the first air duct forms vortex ring air with the temperature corresponding to the first air supply temperature. For example, when the first air supply temperature is the indoor temperature, the opening degree of the first expansion valve is controlled to be zero, that is, the first expansion valve is closed, at this time, since no refrigerant passes through the first heat exchange branch 3, that is, the first heat exchanger 31 does not perform heat exchange, that is, the air entering from the air inlet end 21 of the vortex ring generator 2 is the indoor temperature air, and when the indoor temperature air is blown out from the air outlet end 22 of the vortex ring generator 2, vortex ring air corresponding to the indoor temperature is formed, that is, the air blown out from the air outlet of the first air duct forms vortex ring air corresponding to the temperature of the first air supply temperature.
Further, when the first air supply temperature is the heat exchange temperature, the opening degree of the first expansion valve is controlled not to be zero, that is, the first expansion valve is opened, at this time, since a refrigerant passes through the first heat exchange branch 3, that is, when indoor air enters the first heat exchanger 31 from the air inlet 14 of the first air duct and performs heat exchange in the first heat exchanger 31, the heat-exchanged air is introduced into the vortex ring generator 2 from the air inlet end 21 of the vortex ring generator 2, so that vortex ring air corresponding to the heat exchange temperature is formed after the air is blown out from the air outlet end 22 of the vortex ring generator 2, that is, the air blown out from the air outlet of the first air duct forms vortex ring air corresponding to the temperature of the first air temperature.
Further, the heat exchange temperature includes two kinds, i.e., cold air generated in cooling and hot air generated in heating. The vortex ring wind which is formed by the wind blown out of the air outlet of the first air duct and corresponds to the temperature of the first air supply temperature comprises hot vortex ring wind and cold vortex ring wind, wherein the cold vortex ring wind is cold wind after heat exchange is carried out on the cold vortex ring wind by the first heat exchanger 31 during refrigeration, and the cold wind forms the vortex ring wind by the wind blown out of the air outlet of the first air duct after passing through the vortex ring generating piece 2; the hot vortex ring wind is wind which is subjected to heat exchange through the first heat exchanger 31 during heating and is hot wind, and the hot wind forms vortex ring wind from the wind outlet of the first wind channel after passing through the vortex ring generating piece 2.
Further, when the air blown out of the air outlet of the first air duct is at the heat exchange temperature, the specific opening degree of the first expansion valve can be adjusted according to the first refrigerant evaporation pressure of the first heat exchanger. The first refrigerant evaporation pressure is obtained through a first thermal bulb 33 disposed at an outlet of the first heat exchanger 31. That is, the temperature information of the evaporation temperature of the first heat exchanger 31 is obtained through the first thermal bulb 33, wherein the temperature information may be converted into pressure information in a table look-up manner, and the pressure information is the first refrigerant evaporation pressure of the first heat exchanger.
Further, after the first refrigerant evaporation pressure of the first heat exchanger is obtained, the opening degree of the first expansion valve is adjusted according to the first refrigerant evaporation pressure. For example, when the first refrigerant evaporation pressure is lower than a first preset threshold value during refrigeration, the opening degree of the first expansion valve is reduced; and if the evaporation pressure of the first refrigerant is higher than the second preset threshold value, the opening degree of the first expansion valve is increased. The first preset threshold is smaller than the second preset threshold, and the first preset threshold and the second preset threshold may be set according to specific requirements, for example, the first preset threshold may be set to 0.01MPa, and the second preset threshold may be set to 0.05 MPa. However, in other embodiments, the first preset threshold and the second preset threshold may be set to other values, and are not limited herein.
Further, the manner of adjusting the opening degree of the first expansion valve during heating is the same as the manner of adjusting the opening degree of the first expansion valve during cooling, and is not described in detail herein. Therefore, in the embodiment, the opening degree of the first expansion valve can be adjusted through the acquired first refrigerant evaporation pressure to control the flow rate of the refrigerant entering the first heat exchanger, so that the refrigerant quantity can be saved, and the energy consumption of the indoor unit of the air conditioner can be reduced.
In the embodiment of the invention, the control method of the air conditioner indoor unit comprises the following steps: when an instruction of entering a pulse mode is received, a pulse signal corresponding to the instruction is output to a vortex ring generating piece to generate vortex ring wind; acquiring a first air supply temperature of an air outlet of a first air duct; and controlling the opening degree of a first expansion valve according to the first air supply temperature, so that the air outlet of the first air duct supplies air at the first air supply temperature. In this way, the technical scheme provided by this embodiment can form vortex ring wind by setting the vortex ring generating element to blow wind at the air outlet of the first air duct, that is, the blown wind does not continuously blow directly to the user, so that the user is in a relatively comfortable environment; and the refrigerant flow of the first heat exchanger is controlled by arranging the first expansion valve so as to select the air supply temperature of the vortex ring air, so that the user experience is improved.
Based on the first embodiment, the present invention further provides a second embodiment of a control method for an indoor unit of an air conditioner, and specifically, as shown in fig. 7, when receiving an instruction to enter a pulse mode, the step of outputting a pulse signal corresponding to the instruction to a vortex ring generator to generate a vortex ring wind includes:
s11, when receiving an instruction for entering a pulse mode, acquiring a pulse signal corresponding to the instruction;
and S12, outputting the pulse signal to the driving piece, and enabling the driving piece to drive the wind shielding piece to move so as to form vortex wind in the wind blown out from the wind outlet of the first wind channel.
As shown in fig. 4, the vortex ring generator 2 includes a wind shielding member 23 and a driving member 24, the wind shielding member 23 is movably connected to the wind inlet end 21, the driving member 24 is connected to the wind shielding member 23, and the driving member 24 drives the wind shielding member 23 to open or close the wind inlet end 21, that is, the wind shielding member 23 is movably connected to the wind inlet end 21 of the vortex ring generator 2, so that the wind shielding member 23 can open or close the wind inlet end 21 of the vortex ring generator 2.
Further, when receiving an instruction of entering the pulse mode, obtaining a pulse signal corresponding to the instruction, the electronic control board may control the driving member 24 according to the pulse signal, so that the driving member 24 may drive the wind shielding member 23 to move, so that the wind shielding member 23 opens or closes the wind inlet end 21 of the vortex ring generating member 2.
Further, before the step of outputting the pulse signal to the driving member 24 to drive the wind shielding member 23 to move, an initial state of the wind shielding member 23 is obtained, when the initial state of the wind shielding member 23 is a closed state, a high pressure is formed between the air inlet 13 and the wind shielding member 23, then the wind shielding member 23 is driven to switch from the closed state to an open state, and within a preset time range, the wind shielding member 23 is in the open state, at this time, the wind passing through the vortex ring generator 2 is a high-pressure wind, that is, the high-pressure wind flows into the air outlet end 22 with a smaller area from the air inlet end 21 with a larger area, and the wind speed of the high-pressure wind is faster, so that a vortex ring wind is formed after the high-pressure wind blows out from the air outlet 13 of the first air duct opposite to the air outlet end 22, that is, the wind blown out from the air outlet 13 of the first air duct realizes vortex ring air supply. Thereafter, the wind shielding member 23 is continuously driven to switch from the open state to the closed state to complete one of the whirlwind.
Optionally, the preset time range is 0.05s to 0.5s, and the time of the wind shield 23 in the open state is 0.1 s. However, in other embodiments, the time that the wind shielding member 23 is in the open state may be set to any one of values from 0.05s to 0.5s, which is not limited herein.
Further, the wind blowing out from the outlet 13 forms the vortex wind intermittently, that is, there is a certain interval time between each vortex wind, that is, the interval time is the time from the last opening of the wind shielding member 23 to the next opening of the wind shielding member 23. The interval time is more than 1s, and the setting can be specifically carried out according to the air conditioner indoor unit and the user requirements. Optionally, the interval time is 1.4 s. However, in other embodiments, the interval time may be set to other values, and is not limited herein.
Further, when the wind shielding member 23 is in the open state, normal pressure is maintained between the air inlet 14 and the wind shielding member 23, that is, high pressure is not formed between the air inlet 14 and the wind shielding member 23, and vortex ring air is not formed at the air outlet 13 of the first air duct opposite to the air outlet end 22, at this time, the air outlet 13 of the first air duct realizes normal room-temperature air supply. Namely, the vortex ring air supply is intermittent air supply, the air is annularly supplied to the far end in the room, the vortex ring air supply can blow the air farther under the same air quantity, and the energy consumption of the indoor unit of the air conditioner can be reduced.
In the embodiment of the invention, the control method of the air conditioner indoor unit comprises the following steps: when an instruction for entering a pulse mode is received, acquiring a pulse signal corresponding to the instruction; and outputting the pulse signal to the driving piece to enable the driving piece to drive the wind shielding piece to move so as to form vortex wind from the wind blown out of the air outlet of the first air channel. Like this, the technical scheme that this embodiment provided can keep out the wind piece motion through the driving piece drive for the wind that the air outlet in first wind channel blew out forms the vortex ring wind, because the temperature of vortex ring wind is indoor ambient temperature, makes the user be in more comfortable environment, with the perception effect that improves the user, thereby promotes user experience.
Based on the first embodiment, the present invention further provides a third embodiment of a method for controlling an indoor unit of an air conditioner, and specifically, as shown in fig. 8, when an instruction to enter a pulse mode is received, the method for controlling an indoor unit of an air conditioner further includes:
s13, acquiring the air supply distance of the air outlet of the first air duct;
s14, confirming the target rotating speed of the first fan according to the air supply distance;
and S15, controlling the first fan to operate at the target rotating speed.
In one embodiment, when an instruction to enter the pulse mode is received, an air supply distance of an air outlet of the first air duct is obtained. That is, the air supply distance of the vortex ring wind formed after passing through the vortex ring generator 2 is obtained. The air supply distance can be set by a user on a remote controller or a key or a terminal linked with the indoor unit of the air conditioner.
Further, the air supply distance of the air outlet of the first air duct can also be used as the air supply distance of the air outlet of the first air duct by acquiring the distance between the user and the indoor unit of the air conditioner, which is detected by the distance detection device. The distance detection device can be an infrared camera installed on the indoor unit of the air conditioner, the infrared camera is used for shooting an image with the user, and characteristic information of the user is extracted according to the image, wherein the characteristic information comprises profile information of the user, and the distance between the user and the indoor unit of the air conditioner can be calculated through the profile information. Of course, in other embodiments, the distance detection device may also be other devices, such as a distance sensor, etc., which can directly measure the distance, and is not limited herein.
Further, the air supply distance is divided, for example, the air supply distance is greater than 4m and is a first air supply area, the air supply distance is between 2m and 4m and is a second air supply area, the air supply distance is less than 2m and is a third air supply area, the first fan has a rated rotation speed, the rated rotation speed of the first fan is set to be the maximum rotation speed, that is, the target rotation speed of the first fan is confirmed according to the air supply distance, specifically: when the air supply distance is in a first air supply area, the target rotating speed of the first fan is the rated rotating speed, and the first fan is controlled to operate at the rated rotating speed; when the air supply distance is in a second air supply area, the target rotating speed of the first fan is 80% of the rated rotating speed, and the first fan is controlled to operate at 80% of the rated rotating speed; and when the air supply distance is in a third air supply area, the target rotating speed of the first fan is 50% of the rated rotating speed, and the first fan is controlled to operate at 50% of the rated rotating speed.
Of course, in other embodiments, the air supply distance may be partitioned in other manners, and the first fan corresponds to different rotation speeds according to different partitions, which is not limited herein.
Like this, the technical scheme that this embodiment provided can specifically set up the rotational speed of first fan through the air supply distance of the air outlet in first wind channel to when realizing the fixed point air supply, can reduce the energy consumption of air conditioning indoor set.
Based on the first embodiment, as shown in fig. 9, the present invention further provides a fourth embodiment of a control method for an air conditioning indoor unit, that is, the control method for an air conditioning indoor unit further includes the following steps:
s6, acquiring a second air supply temperature of an air outlet of the second air duct;
and S7, controlling the opening degree of a second expansion valve according to the second air supply temperature so that the air outlet of the second air duct supplies air at the temperature corresponding to the second air supply temperature.
And further, acquiring a second air supply temperature of an air outlet of the second air duct. The second air supply temperature can also be set according to a remote controller or a key or a terminal linked with the indoor unit of the air conditioner. In this embodiment, the second air supply temperature includes an indoor temperature and a heat exchange temperature after heat exchange by the second heat exchanger 41, the indoor temperature is an indoor normal temperature, and the heat exchange temperature includes cold air generated when the second heat exchanger 41 is cooled and hot air generated when the second heat exchanger is heated.
Furthermore, the opening degree of the second expansion valve is controlled according to the second air supply temperature, so that the air outlet of the second air duct supplies air at the temperature corresponding to the second air supply temperature. For example, when the second supply air temperature is the indoor temperature, the opening degree of the second expansion valve is controlled to be zero, that is, the second expansion valve is closed, at this time, since no refrigerant passes through the second heat exchange branch 4, that is, the second heat exchanger 41 does not perform heat exchange, that is, the air entering from the air inlet 14 of the second air duct is the indoor temperature air, and the indoor temperature air is blown out from the air outlet 13 of the second air duct.
Further, when the second air supply temperature is the heat exchange temperature, the opening degree of the second expansion valve is controlled not to be zero, that is, the second expansion valve is opened, at this time, since the refrigerant passes through the second heat exchange branch 4, that is, when the indoor air enters the second heat exchanger 41 from the air inlet 14 of the second air duct and performs heat exchange in the second heat exchanger 41, the air after the heat exchange is transmitted to the air outlet 13 of the second air duct, so that the vortex ring air corresponding to the heat exchange temperature is formed at the air outlet 13 of the second air duct, that is, the air outlet 13 of the second air duct supplies air at the temperature corresponding to the second air supply temperature. The heat exchange temperature includes two kinds, i.e., cold air generated during cooling and hot air generated during heating.
Further, because the first heat exchanger 31 and the second heat exchanger 41 are arranged in parallel, that is, the first heat exchanger 31 and the second heat exchanger 41 are independently controlled, that is, when the air blown out from the air outlet of the second air duct is cold air or hot air, the air outlet of the first air duct can also blow out cold or hot vortex ring air, or the air blown out from the air outlet of the first air duct is vortex ring air corresponding to the indoor temperature, at this time, when the air outlet of the second air duct is blown with the temperature corresponding to the second blowing temperature, the driving member 24 can be controlled to drive the wind shielding member 23 to be in the open state or the closed state.
Specifically, when the driving member 24 drives the wind shielding member 23 to be kept in the open state, the air outlet corresponding to the vortex ring generating member 2 is opened long, and the first fan 5 operates according to the predetermined air volume and the operating air speed, so that the disturbance of the indoor air is increased, and the cooling or heating effect is improved. The step that the first fan 5 operates according to the preset air volume and the corresponding operation air speed comprises the following steps: acquiring preset air volume; and controlling the first fan to operate at the operation parameter of the preset air quantity. The air blown out from the air outlet corresponding to the vortex ring generating piece 2 can be enough to disturb the indoor air, and the refrigerating or heating effect is better improved.
Further, when the driving member 24 drives the wind shielding member 23 to be kept in the closed state, no wind blows out from the wind outlet corresponding to the vortex ring generator 2.
That is, in this embodiment, when receiving an instruction to enter the cooling or heating mode, the second air supply temperature of the air outlet of the second air duct is obtained; and controlling the state of a second expansion valve according to the second air supply temperature so that the air outlet of the second air duct supplies air at the temperature corresponding to the second air supply temperature, thereby realizing the normal refrigeration or heating function of the indoor unit of the air conditioner.
Further, when the air blown out of the air outlet of the second air duct is at the heat exchange temperature, the specific opening degree of the first expansion valve can be adjusted according to the second refrigerant evaporation pressure of the second heat exchanger. The second refrigerant evaporation pressure is obtained through the second thermal bulb 43 disposed at the outlet of the second heat exchanger 41, that is, the temperature information of the evaporation temperature of the second heat exchanger 41 is obtained through the second thermal bulb 43, wherein the temperature information may be converted into pressure information in a table look-up manner, and the pressure information is the second refrigerant evaporation pressure of the second heat exchanger.
Further, after the second refrigerant evaporation pressure of the second heat exchanger is obtained, the opening degree of the second expansion valve is adjusted according to the second refrigerant evaporation pressure. For example, when the second refrigerant evaporation pressure is lower than a third preset threshold value during refrigeration, the opening degree of the second expansion valve is reduced; and if the evaporation pressure of the second refrigerant is higher than a fourth preset threshold value, the opening degree of the second expansion valve is increased. The third preset threshold is smaller than the fourth preset threshold, and the third preset threshold and the fourth preset threshold may be set according to specific requirements, for example, the third preset threshold may be set to 0.01MPa, and the fourth preset threshold may be set to 0.05 MPa. However, in other embodiments, the third preset threshold and the fourth preset threshold may be set to other values, and are not limited herein.
Therefore, in the embodiment, the opening degree of the second expansion valve can be adjusted through the acquired second refrigerant evaporation pressure to control the refrigerant flow entering the second heat exchanger, so that the refrigerant quantity can be saved, and the energy consumption of the indoor unit of the air conditioner can be reduced.
The embodiment of the invention also provides a control device of the indoor unit of the air conditioner, the control device of the indoor unit of the air conditioner comprises a memory, a processor and a control program of the indoor unit of the air conditioner, the control program of the indoor unit of the air conditioner is stored on the memory and can run on the processor, and the control program of the indoor unit of the air conditioner realizes the steps of the control method of the indoor unit of the air conditioner in the embodiment when being executed by the processor.
The embodiment of the invention also provides a readable storage medium, wherein a control program of the air-conditioning indoor unit is stored on the readable storage medium, and the control program of the air-conditioning indoor unit realizes the steps of the control method of the air-conditioning indoor unit in the embodiment when being executed by the processor.
The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a television, a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present application.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the specification and the drawings, or any other related technical fields directly or indirectly applied thereto under the conception of the present invention are included in the scope of the present invention.

Claims (12)

1. An air conditioning indoor unit, characterized in that, the air conditioning indoor unit includes:
the air conditioner comprises a shell, a first air duct and a second air duct, wherein the first air duct and the second air duct are arranged in the shell;
the vortex ring generating element is arranged in the first air channel and is provided with an air inlet end and an air outlet end, and the air inlet area of the air inlet end is larger than the air outlet area of the air outlet end so as to form vortex ring wind from the wind blown out from the air outlet of the first air channel;
the first heat exchange branch is arranged in the first air duct, and a first heat exchanger and a first expansion valve for controlling the flow of a refrigerant of the first heat exchanger are arranged on the first heat exchange branch;
the second heat exchange branch is arranged in the second air duct, is connected with the first heat exchange branch in parallel, and is provided with a second heat exchanger and a second expansion valve for controlling the flow of a refrigerant of the second heat exchanger;
the vortex ring generator is used for generating the vortex ring wind according to a pulse signal corresponding to a received instruction when the instruction of entering a pulse mode is received;
the first expansion valve is used for controlling the temperature of the vortex ring wind formed by the air outlet of the first air duct to be a first air supply temperature.
2. The indoor unit of claim 1, wherein the vortex ring generator comprises a wind shielding member and a driving member, the wind shielding member is movably connected to the wind inlet end, the driving member is connected to the wind shielding member, and the driving member drives the wind shielding member to open or close the wind inlet end.
3. The indoor unit of claim 2, wherein the wind shielding member is a wind guiding blade, the indoor unit further comprises a connecting rod for connecting the wind guiding blade and the driving member, the wind guiding blade is connected to the air inlet end, and the driving member drives the connecting rod to rotate so that the wind guiding blade opens or closes the air inlet end.
4. The indoor unit of claim 3, wherein the vortex ring generator further comprises a rectifying grill disposed between the air guide vane and the air inlet end of the vortex ring generator.
5. An indoor unit of an air conditioner according to claim 1, wherein the first heat exchange branch is further provided with a first temperature sensing bulb for monitoring the evaporation temperature of the first heat exchanger, and the second heat exchange branch is further provided with a second temperature sensing bulb for monitoring the evaporation temperature of the second heat exchanger.
6. The indoor unit of claim 1, further comprising a first fan and a second fan, wherein the first fan is installed in the casing, so that air entering the air inlet of the first air duct is blown out of the air outlet of the first air duct; the second fan is arranged in the shell, so that the air entering from the air inlet of the second air duct is blown out from the air outlet of the second air duct.
7. An air-conditioning indoor unit control method based on any one of claims 1 to 6, characterized by comprising:
when an instruction of entering a pulse mode is received, a pulse signal corresponding to the instruction is output to a vortex ring generating piece to generate vortex ring wind;
acquiring a first air supply temperature of an air outlet of a first air duct;
and controlling the opening degree of a first expansion valve according to the first air supply temperature, so that the air outlet of the first air duct supplies air at the temperature corresponding to the first air supply temperature.
8. The control method of an indoor unit of an air conditioner according to claim 7, wherein the vortex ring generator includes a wind shielding member and a driving member, and the step of outputting a pulse signal corresponding to the command to the vortex ring generator to generate the vortex ring wind when receiving the command to enter the pulse mode includes:
when an instruction for entering a pulse mode is received, acquiring a pulse signal corresponding to the instruction;
and outputting the pulse signal to the driving piece to enable the driving piece to drive the wind shielding piece to move so as to form vortex wind from the wind blown out of the air outlet of the first air channel.
9. The control method of the indoor unit of an air conditioner according to claim 7, wherein when receiving the command to enter the burst mode, the control method of the indoor unit of an air conditioner further comprises:
acquiring the air supply distance of an air outlet of the first air duct;
confirming the target rotating speed of the first fan according to the air supply distance;
and controlling the first fan to operate at the target rotating speed.
10. The control method of an indoor unit of an air conditioner according to claim 7, further comprising:
acquiring a second air supply temperature of an air outlet of a second air duct;
and controlling the opening degree of a second expansion valve according to the second air supply temperature so that the air outlet of the second air duct supplies air at the temperature corresponding to the second air supply temperature.
11. A control device of an indoor unit of an air conditioner, characterized in that the control device of the indoor unit of the air conditioner comprises a memory, a processor and a control program of the indoor unit of the air conditioner, wherein the control program of the indoor unit of the air conditioner is stored on the memory and can run on the processor, and when the processor executes the control program of the indoor unit of the air conditioner, the steps of the control method of the indoor unit of the air conditioner according to any one of claims 7 to 10 are realized.
12. A readable storage medium, wherein a control program of an air-conditioning indoor unit is stored on the readable storage medium, and when the control program of the air-conditioning indoor unit is executed by a processor, the steps of the control method of the air-conditioning indoor unit according to any one of claims 7 to 10 are implemented.
CN201910705117.2A 2019-07-29 2019-07-29 Air conditioner indoor unit, control method and device and readable storage medium Active CN112303828B (en)

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