CN114076347B - Air conditioner, control method thereof and computer storage medium - Google Patents

Air conditioner, control method thereof and computer storage medium Download PDF

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Publication number
CN114076347B
CN114076347B CN202010828888.3A CN202010828888A CN114076347B CN 114076347 B CN114076347 B CN 114076347B CN 202010828888 A CN202010828888 A CN 202010828888A CN 114076347 B CN114076347 B CN 114076347B
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China
Prior art keywords
air
indoor
return
heat exchanger
indoor heat
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CN202010828888.3A
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Chinese (zh)
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CN114076347A (en
Inventor
王剑冬
蔡明明
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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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Priority to CN202010828888.3A priority Critical patent/CN114076347B/en
Publication of CN114076347A publication Critical patent/CN114076347A/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007Indoor units, e.g. fan coil units
    • F24F1/0011Indoor units, e.g. fan coil units characterised by air outlets
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007Indoor units, e.g. fan coil units
    • F24F1/0059Indoor units, e.g. fan coil units characterised by heat exchangers
    • F24F1/0063Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/79Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83Control 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
    • F24F11/84Control 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1413Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre using more than one tilting member, e.g. with several pivoting blades
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/10Temperature
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

The invention discloses an air conditioner, a control method thereof and a computer storage medium, wherein an indoor unit of the air conditioner comprises an indoor fan, an air outlet, a first air return opening and a second air return opening, wherein the first air return opening is positioned above a shell of the indoor unit, and the second air return opening is positioned below the shell of the indoor unit; the indoor unit further comprises a first indoor heat exchanger and a second indoor heat exchanger connected with the first indoor heat exchanger in parallel, the first indoor heat exchanger is used for exchanging heat between the first air return opening and the return air of the second air return opening, the second indoor heat exchanger is located between the first indoor heat exchanger and the second air return opening, and the second indoor heat exchanger is used for exchanging heat between the return air of the second air return opening. The invention aims to improve the heat exchange effect of an air conditioner.

Description

Air conditioner, control method thereof and computer storage medium
Technical Field
The present invention relates to the field of air conditioners, and in particular, to an air conditioner, a control method thereof, and a computer storage medium.
Background
The existing indoor units of the air conditioner all adopt single-system heat exchange, namely an air return port, an air outlet and an indoor heat exchanger. When the single-system air conditioner is used for refrigerating, the indoor cold air circulation path is single, the heat exchange capacity of the heat exchanger is low, and the refrigerating effect cannot meet the requirements of users.
The foregoing is provided merely for the purpose of facilitating understanding of the technical solutions of the present invention and is not intended to represent an admission that the foregoing is prior art.
Disclosure of Invention
The invention mainly aims to provide an air conditioner, a control method thereof and a computer storage medium, and aims to improve the heat exchange effect of the air conditioner.
In order to achieve the above object, the present invention provides an air conditioner, wherein an indoor unit of the air conditioner includes an indoor fan, an air outlet, a first air return port and a second air return port, the first air return port is located above a casing of the indoor unit, and the second air return port is located below the casing of the indoor unit; the indoor unit further comprises a first indoor heat exchanger and a second indoor heat exchanger connected with the first indoor heat exchanger in parallel, the first indoor heat exchanger is used for exchanging heat between the first air return opening and the return air of the second air return opening, the second indoor heat exchanger is located between the first indoor heat exchanger and the second air return opening, and the second indoor heat exchanger is used for exchanging heat between the return air of the second air return opening.
Optionally, the indoor unit further includes a first wind deflector, where the first wind deflector is located between the first indoor heat exchanger and the first return air inlet or located at the first return air inlet, and the first wind deflector is used to adjust the return air volume of the first return air inlet.
Optionally, the indoor unit further includes a second wind deflector, the second wind deflector is located between the first indoor heat exchanger and the second indoor heat exchanger, and the second wind deflector is used for adjusting the air return quantity of the second air return opening.
Optionally, when the air conditioner is in a floor heating mode, the indoor fan rotates according to a first preset direction to drive airflow to flow from the air outlet to the second air return opening, wherein the first wind shield is located at a first preset position to reduce the air outlet of the first air return opening, and/or the second wind shield is located at a third preset position to increase the air outlet of the second air return opening.
Optionally, the first indoor heat exchanger is connected in series with a first electronic expansion valve, and the second indoor heat exchanger is connected in series with a second electronic expansion valve, wherein when the air conditioner is in a defrosting mode, the first electronic expansion valve is in a closed state, the second electronic expansion valve is in an open state, and the second wind shield is in a fourth preset position so as to close the second air return opening.
In addition, to achieve the above object, the present invention also provides a control method of an air conditioner, which is applied to the air conditioner as described above, the control method of the air conditioner comprising the steps of:
When the air conditioner is in a heat exchange mode, acquiring indoor environment temperature, wherein the heat exchange mode comprises a refrigeration mode and/or a heating mode; the method comprises the steps of,
and adjusting the position of a second wind deflector positioned between the first indoor heat exchanger and the second indoor heat exchanger according to the indoor environment temperature so as to adjust the air return quantity of the second air return opening.
Optionally, the step of adjusting the position of the second wind deflector located between the first indoor heat exchanger and the second indoor heat exchanger according to the indoor environment temperature to adjust the air return quantity of the second air return port includes:
acquiring a difference value between a set temperature and the indoor environment temperature;
when the difference value is not in the preset range, controlling the second wind deflector to move in the first direction so as to increase the return air quantity of the second return air inlet; the method comprises the steps of,
and when the difference value is in a preset range, controlling the second wind shield to move towards a second direction so as to reduce the return air quantity of the second return air inlet.
Optionally, the indoor unit further includes a first wind deflector located between the first indoor heat exchanger and the first air return port or located at the first air return port, and configured to adjust an air return amount of the first air return port, and the step of adjusting, according to the indoor ambient temperature, a position where a second wind deflector located between the first indoor heat exchanger and the second indoor heat exchanger is located, so as to adjust an air return amount of the second air return port includes:
When the air conditioner is in a heating mode and the indoor environment temperature is smaller than a first preset temperature, the second wind shield is controlled to move in a first direction so as to increase the return air quantity of the second air return opening; the method comprises the steps of,
after the step of controlling the second wind deflector to move towards the first direction to increase the air return quantity of the second air return opening, the method further comprises the following steps:
and controlling the first wind shield to move towards a third direction so as to reduce the air return quantity of the first air return opening.
Optionally, the step of adjusting the position of the second wind deflector located between the first indoor heat exchanger and the second indoor heat exchanger according to the indoor environment temperature to adjust the air return quantity of the second air return port includes:
when the air conditioner is in a refrigeration mode and the indoor environment temperature is higher than a second preset temperature, controlling the second wind shield to move in a second direction so as to reduce the return air quantity of the second air return opening; the method comprises the steps of,
after the step of controlling the second wind deflector to move towards the second direction to reduce the air return quantity of the second air return opening, the method further comprises the following steps:
and controlling the first wind shield to move towards the fourth direction so as to increase the air return quantity of the first air return opening.
In addition, in order to achieve the above object, the present invention also provides a computer storage medium having stored thereon a control program of an air conditioner, which when executed by a processor, implements the steps of the control method of an air conditioner as described above.
The indoor unit of the air conditioner comprises an indoor fan, an air outlet, a first air return port and a second air return port, wherein the first air return port is positioned above a shell of the indoor unit, and the second air return port is positioned below the shell of the indoor unit; the indoor unit further comprises a first indoor heat exchanger and a second indoor heat exchanger connected with the first indoor heat exchanger in parallel, the first indoor heat exchanger is used for exchanging heat between the first air return opening and the return air of the second air return opening, the second indoor heat exchanger is located between the first indoor heat exchanger and the second air return opening, and the second indoor heat exchanger is used for exchanging heat between the return air of the second air return opening. According to the invention, the first air return port arranged above the shell of the indoor unit and the second air return port arranged below the shell of the indoor unit are used for carrying out air return, so that a circulating air field is effectively formed, the fluidity of indoor air is improved, the second indoor heat exchanger is added to carry out secondary heat exchange on the air return of the second air return port, the air outlet temperature of the air outlet is improved, the heat exchange effect of the air conditioner is obviously improved through the structures of the upper air return port, the lower air return port and the double evaporators, and indoor users are more comfortable.
Drawings
Fig. 1 is a schematic view illustrating a structure of an indoor unit of an air conditioner according to the present invention;
fig. 2 is another schematic structural view of an indoor unit of an air conditioner according to the present invention;
FIG. 3 is a schematic diagram of a connection relationship of an air conditioner according to the present invention;
FIG. 4 is a schematic diagram of a terminal structure of a hardware operating environment according to an embodiment of the present invention;
FIG. 5 is a flow chart of an embodiment of a control method of an air conditioner according to the present invention;
FIG. 6 is a flowchart illustrating a control method of an air conditioner according to another embodiment of the present invention;
fig. 7 is a flowchart illustrating a control method of an air conditioner according to another embodiment of the present invention.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The embodiment of the invention provides a solution, wherein the first air return port arranged above the shell of the indoor unit and the second air return port arranged below the shell of the indoor unit are used for carrying out air return, so that a circulating air field is effectively formed, the fluidity of indoor air is improved, the second indoor heat exchanger is added to carry out secondary heat exchange on the air return of the second air return port, the air outlet temperature of the air outlet is improved, the heat exchange effect of the air conditioner is obviously improved through the structures of the upper air return port, the lower air return port and the double evaporators, and indoor users are more comfortable.
As shown in fig. 1, fig. 1 is a schematic view of an on-hook structure of an indoor unit of an air conditioner. In fig. 1, the indoor unit at least includes an indoor fan X, an air outlet W, a first air return port V and a second air return port U, where the first air return port V is located above a casing of the indoor unit, so as to return air in an area above the indoor unit. The second air return opening U is located at the surface of the indoor unit and corresponds to the second air return opening V, the second air return opening U is disposed below the indoor unit to return air in the indoor lower area, and the air outlet W of the indoor unit is conventionally disposed, for example, when the indoor unit of the air conditioner is on hook, the air outlet W is typically disposed at the front side of the indoor unit or the lower front side of the indoor unit to blow air to the indoor middle area. Through the return air and the middle part air-out of both sides about the indoor set, indoor air can flow better, and the air-out of indoor set can reach more indoor region, forms good circulation wind field, and the heat transfer effect of indoor set is better.
Referring to fig. 1 and 3, the indoor unit further includes a first indoor heat exchanger 07 and a second indoor heat exchanger 08 connected in parallel with the first indoor heat exchanger 07, that is, the first indoor heat exchanger 07 and the second indoor heat exchanger 08 are respectively located in different refrigerant branches, and the first indoor heat exchanger 07 and the second indoor heat exchanger 08 can exchange heat with return air of the indoor unit independently without mutual influence. In the structure of the indoor unit, a first indoor heat exchanger 07 is arranged between an indoor fan X and a first air return opening V, when the indoor fan X is in normal operation, the first air return opening V returns air, heat exchange is performed with the first indoor heat exchanger 07 when the return air passes through the first indoor heat exchanger 07, air is discharged from an air outlet W of the indoor unit after heat exchange, the first indoor heat exchanger 07 is also positioned between the indoor fan X and a second air return opening U, and when the second air return opening U returns air, the return air also passes through the first indoor heat exchanger 07 and exchanges heat with the first indoor heat exchanger 07, and air is discharged from the air outlet W of the indoor unit after heat exchange. In the air duct of the indoor unit, the first indoor heat exchanger 07 is located between the indoor fan X and the first air return port V, and between the indoor fan X and the second air return port U, so that the return air of the first air return port V and the second air return port U can exchange heat with the first indoor heat exchanger 07 at the same time. And second indoor heat exchanger 08 is located between first indoor heat exchanger 07 and the second return air inlet U, and second indoor heat exchanger 08 is used for carrying out heat transfer to second return air inlet U's return air, like this, second return air inlet U's return air can pass through twice heat transfer in proper order, when the air conditioner refrigerates, air outlet W's air-out temperature can further reduce, improve the refrigeration effect of indoor set, when the air conditioner heats, air outlet W's air-out temperature can further rise, improve the heating effect of indoor set, indoor user is more comfortable.
In this embodiment, when the air conditioner is in a normal cooling or heating mode, the first air return port V and the second air return port U return air simultaneously, the second indoor heat exchanger 08 exchanges heat with the return air of the second air return port U, and the first indoor heat exchanger 07 exchanges heat with the return air of the first air return port V and the second air return port U, respectively.
In the technical scheme disclosed in this embodiment, on the structure of the indoor unit of the existing air conditioner, the second air return opening U located below the indoor unit shell is increased, and the air is returned through the first air return opening arranged above the indoor unit shell and the second air return opening arranged below the indoor unit shell, so that a circulating air field is effectively formed, the indoor air fluidity is improved, and the second heat exchange is performed on the air returned from the second air return opening by adding the second indoor heat exchanger, the air outlet temperature of the air outlet is improved, the heat exchange effect of the air conditioner is remarkably improved through the structures of the upper air return opening, the lower air return opening and the double evaporators, and indoor users are more comfortable.
Optionally, as shown in fig. 1, the indoor unit further includes a first wind deflector 013, where the first wind deflector 013 is disposed at the first air return port V, or the first wind deflector 013 is disposed in an air duct between the first air return port V and the first indoor heat exchanger 07, and by moving a position of the first wind deflector 013, the purpose of adjusting the air return quantity of the first air return port V is achieved. The air return quantity of the first air return opening V is adjusted through the first wind guard 013, so that the air flow degree and the air flow direction of the indoor circulating wind field are changed, the effect of the indoor circulating wind field is better, and the heat exchange effect of the indoor unit is also better.
Optionally, the indoor unit further includes a second wind deflector 014, where the second wind deflector 014 is disposed between the first indoor heat exchanger 07 and the second indoor heat exchanger 08, that is, the return air of the second air return opening U sequentially passes through the second indoor heat exchanger 08, the position corresponding to the second wind deflector 014, the first indoor heat exchanger 07, the indoor fan X and the air outlet W. The second wind deflector 014 is moved to shield or partially shield the air channel where the second air return opening U is located, so that the purpose of adjusting the air return quantity of the second air return opening U is achieved. Of course, in order to adjust the air return quantity of the second air return opening U, the second air deflector 014 may be disposed at the second air return opening U, and the opening area of the second air return opening U is adjusted by moving the second air deflector 014, so as to adjust the opening area or the opening degree of the second air return opening U. The air return quantity of the second air return opening U is adjusted through the second wind guard 014, so that the air flow degree and the air flow direction of the indoor circulating wind field are changed, the effect of the indoor circulating wind field is better, and the heat exchange effect of the indoor unit is also better. When the air conditioner is in a normal cooling or heating mode, the second air return opening U is in an open state, and the indoor unit returns air through the first air return opening V and the second air return opening U at the same time.
Optionally, at least one of the first wind deflector 013 and the second wind deflector 014 may be a sliding wind deflector or a rotary wind deflector and driven by a driving device, where, when at least one of the first wind deflector 013 and the second wind deflector 014 is a sliding wind deflector, the air return amount of the corresponding air return opening is adjusted through crawler transmission control, and when at least one of the first wind deflector 013 and the second wind deflector 014 is a rotary wind deflector, the air return amount of the corresponding air return opening is adjusted through cooperation control of a stepping motor and an electromagnet sucker.
Optionally, when the indoor unit includes the first air deflector 013 and the second air deflector 014 at the same time, the air return amounts of the first air return port V and the second air return port U can be adjusted at the same time, so as to further adjust the indoor circulating air field, for example, when the air conditioner heats, the air return amount of the first air return port V above the indoor unit can be reduced, and the air return amount of the second air return port U below the indoor unit can be increased, so that the hot air blown by the indoor unit is mainly concentrated in the indoor ground area, and thus the user is more comfortable, wherein the air return amount of the first air return port V can be reduced to zero, namely, the first air return port V is closed, and the air return amount of the second air return port U can be increased to the maximum, namely, the second air return port U is completely opened. For example, when the air conditioner is used for refrigerating, the air return quantity of the second air return opening U below the indoor unit can be reduced, and the air return quantity of the first air return opening V above the indoor unit can be increased.
Optionally, when the air conditioner is in the floor heating mode, the indoor unit is controlled to blow hot air to the ground area preferentially, at this time, the indoor fan X rotates according to a first preset direction, wherein the rotation of the indoor fan X has two directions including the first preset direction and a second preset direction opposite to the first preset direction, and when the indoor fan X rotates according to the first preset direction, the air flow is driven to flow from the air outlet W to the second air return opening U and/or the first air return opening V, that is, the indoor fan X is reversed, the air outlet W returns air, and the second air return opening U and/or the first air return opening V outputs air; when the indoor fan X rotates according to the second preset direction, the airflow is driven to flow from the second air return opening U and/or the first air return opening V to the air outlet W, namely the indoor fan X rotates positively, the air outlet W outputs air, and the second air return opening U and/or the first air return opening V returns air.
Optionally, when the air conditioner is in the floor heating mode, the first air baffle 013 is at a first preset position to reduce the air output of the first air return port V, for example, as shown in fig. 2, when the first air baffle 013 is at the first preset position, the air output of the first air return port V may be zero, that is, the first air return port V is closed. And/or, when the air conditioner is in the floor heating mode, the second wind deflector 014 is at the third preset position to increase the air output of the second air return opening U, for example, as shown in fig. 2, when the second wind deflector 014 is at the third preset position, the air output of the second air return opening U reaches the maximum, that is, the second air return opening U is completely opened. At this time, because the second return air inlet U sets up in the casing below of indoor set, heats at the air conditioner, and when indoor fan rotated according to first default direction, second return air inlet U can blow hot-blast perpendicularly to ground, and hot-blast come-up reduces, and more hot-blast can reach ground region for ground region's heat rapid increase, ground region's temperature rises fast, realizes the effect of ground heating.
In the embodiment, the indoor fan is reversed in the floor heating mode, so that the air return port below the indoor unit shell vertically blows hot air to the ground, and the ground area is quickly heated.
Optionally, as shown in fig. 3, fig. 3 is a schematic diagram of a connection relationship of an air conditioner, and the air conditioner includes a compressor 01, a four-way valve 02, an outdoor heat exchanger 03, an outdoor fan 04, a first electronic expansion valve 05, a second electronic expansion valve 06, a first indoor heat exchanger 07, a second indoor heat exchanger 08, an indoor fan 09, and a two-way valve 010. The first indoor heat exchanger 07 and the second indoor heat exchanger 08 are connected to the outdoor heat exchanger 03 in parallel, the refrigerant branch where the first indoor heat exchanger 07 is located is connected with the first electronic expansion valve 05 in series, and the refrigerant branch where the second indoor heat exchanger 08 is located is connected with the second electronic expansion valve 06 in series, so that the heat exchange degree of the first indoor heat exchanger 07 can be adjusted by controlling the opening degree of the first electronic expansion valve 05, and the heat exchange degree of the second electronic expansion valve 06 can be adjusted by controlling the opening degree of the second electronic expansion valve 06, and the reduction of different degrees of the air outlet temperature of the air outlet W of the indoor unit is realized. Of course, the first electronic expansion valve 05 and the second electronic expansion valve 06 may be replaced by one electronic expansion valve disposed in the main refrigerant path, that is, the third electronic expansion valve, the first indoor heat exchanger 07 and the second indoor heat exchanger 08 are all connected in series to the third electronic expansion valve, and the heat exchange degree of the first indoor heat exchanger 07 and the second indoor heat exchanger 08 is adjusted by controlling the opening degree of the third electronic expansion valve, at this time, the heat exchange effect of the first indoor heat exchanger 07 and the second indoor heat exchanger 08 is the same, and the heat exchange capability of the indoor unit is improved by two heat exchanges of the indoor unit return air.
As shown in fig. 3, when the air conditioner is refrigerating, the end a of the four-way valve 02 is conducted to the end B, the end C is conducted to the end D, the two-way valve 010 is in an open state, the refrigerant flow is distributed by adjusting the first electronic expansion valve 05 and the second electronic expansion valve 06, at this time, the first air return port V and the second air return port U return air simultaneously, and the second air return port U returns air to realize cold air circulation, so as to achieve comfortable experience effect. When the air conditioner heats, the end A of the four-way valve 02 is conducted to the end C, the end B is conducted to the end D, the two-way valve 010 is in an open state, the refrigerant flow is distributed through adjusting the first electronic expansion valve 05 and the second electronic expansion valve 06, at the moment, the first air return port V and the second air return port U return air simultaneously, and cold air circulation can be realized through the air return of the second air return port U, so that a comfortable experience effect is achieved.
Optionally, the second indoor heat exchanger 08 is staggered from the return air direction of the indoor fan X, that is, when the indoor fan X is operating normally, the indoor air entering from the first air return port V exchanges heat through the first indoor heat exchanger 07 and then flows out from the air outlet W, and in this process, the return air of the first air return port V cannot flow through the second indoor heat exchanger 08 to exchange heat, or, the second indoor heat exchanger 08 is not in the air flue communicating the first air return port V with the air outlet W.
Optionally, when the two indoor heat exchangers 08 are staggered with the return air direction of the indoor fan X, and the refrigerant branch where the first indoor heat exchanger 07 is located is connected in series with the first electronic expansion valve 05, and when the second indoor heat exchanger 08 is connected in series with the second electronic expansion valve 06, if the air conditioner is in a defrosting mode, at this time, the first electronic expansion valve 05 is in a closed state, so that part of refrigerant remains in the first indoor heat exchanger 07, and the refrigerant in the first indoor heat exchanger 07 is prevented from participating in the refrigerant circulation of the air conditioner, and because the frosting of the indoor unit of the air conditioner usually occurs during heating in winter, the refrigerant remaining in the first indoor heat exchanger 07 usually has a higher temperature after the first electronic expansion valve 05 is closed, that is, the first indoor heat exchanger 07 has a higher waste heat. As shown in fig. 1, when the air conditioner is in the defrosting mode, the second air deflector 014 is at the fourth preset position to adjust the return air amount of the second return air inlet U to zero, i.e. the second return air inlet U is in the closed state. Since the indoor unit is cooled when the air conditioner is in the defrosting mode, the second electronic expansion valve 06 is in an open state at this time, so that the refrigerant can exchange heat through the second indoor heat exchanger 08 connected in series with the second electronic expansion valve 06 when the air conditioner is cooled. Through setting up two indoor heat exchangers of parallelly connected, when needs defrosting, the refrigerant that makes when indoor refrigeration flows through the second indoor heat exchanger, and does not flow through first indoor heat exchanger to blow hot-blast to indoor through the waste heat of refrigerant in the first indoor heat exchanger, avoid the user to feel great cold and hot difference.
As shown in fig. 4, fig. 4 is a schematic diagram of a terminal structure of a hardware running environment according to an embodiment of the present invention.
The terminal of the embodiment of the invention is an air conditioner.
As shown in fig. 4, the terminal may include: a processor 1001, such as a CPU, a communication bus 1002, a user interface 1003, a memory 1004. Wherein the communication bus 1002 is used to enable connected communication between these components. The user interface 1003 may include a Display, an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may further include a standard wired interface, a wireless interface. The memory 1004 may be a high-speed RAM memory or a stable memory (non-volatile memory), such as a disk memory. The memory 1004 may also optionally be a storage device separate from the processor 1001 described above.
It will be appreciated by those skilled in the art that the terminal structure shown in fig. 4 is not limiting of the terminal and may include more or fewer components than shown, or may combine certain components, or a different arrangement of components.
As shown in fig. 4, a user interface module and a control program of the air conditioner may be included in the memory 1004 as one type of computer storage medium.
In the terminal shown in fig. 4, the user interface 1003 is mainly used for connecting a client (user side) with which data communication is performed; and the processor 1001 may be used to call a control program of the air conditioner stored in the memory 1004 and perform the following operations:
when the air conditioner is in a heat exchange mode, acquiring indoor environment temperature, wherein the heat exchange mode comprises a refrigeration mode and/or a heating mode; the method comprises the steps of,
and adjusting the position of a second wind deflector positioned between the first indoor heat exchanger and the second indoor heat exchanger according to the indoor environment temperature so as to adjust the air return quantity of the second air return opening.
Further, the processor 1001 may call a control program of the air conditioner stored in the memory 1004, and further perform the following operations:
acquiring a difference value between a set temperature and the indoor environment temperature;
when the difference value is not in the preset range, controlling the second wind deflector to move in the first direction so as to increase the return air quantity of the second return air inlet; the method comprises the steps of,
and when the difference value is in a preset range, controlling the second wind shield to move towards a second direction so as to reduce the return air quantity of the second return air inlet.
Further, the processor 1001 may call a control program of the air conditioner stored in the memory 1004, and further perform the following operations:
when the air conditioner is in a heating mode and the indoor environment temperature is smaller than a first preset temperature, the second wind shield is controlled to move in a first direction so as to increase the return air quantity of the second air return opening; the method comprises the steps of,
and controlling the first wind shield to move towards a third direction so as to reduce the air return quantity of the first air return opening.
Further, the processor 1001 may call a control program of the air conditioner stored in the memory 1004, and further perform the following operations:
when the air conditioner is in a refrigeration mode and the indoor environment temperature is higher than a second preset temperature, controlling the second wind shield to move in a second direction so as to reduce the return air quantity of the second air return opening; the method comprises the steps of,
and controlling the first wind shield to move towards the fourth direction so as to increase the air return quantity of the first air return opening.
Referring to fig. 5, in an embodiment, the control method of an air conditioner is applied to the air conditioner described in each of the above embodiments, and the control method of an air conditioner includes the steps of:
step S10, when the air conditioner is in a heat exchange mode, acquiring indoor environment temperature, wherein the heat exchange mode comprises a refrigeration mode and/or a heating mode;
In this embodiment, when the air conditioner is in a heat exchange mode, the indoor environment temperature is detected at regular time, wherein the heat exchange mode includes a cooling mode and/or a heating mode.
Optionally, the heat exchange mode may further include a floor heating mode. When the condition that the opening condition of the floor heating mode is satisfied is detected, the air conditioner is controlled to heat, and the air volume of the first air return port V is adjusted by adjusting the first wind deflector 013, for example, as shown in fig. 2, the air volume of the first air return port V can be made zero, that is, the first air return port V is closed. After the air conditioner is controlled to heat, controlling the indoor fan X to rotate according to a first preset direction, wherein the rotation of the indoor fan X has two directions including the first preset direction and a second preset direction opposite to the first preset direction, and when the indoor fan X rotates according to the first preset direction, driving air flow to a second air return port U from an air outlet W, namely the indoor fan X rotates reversely, the air outlet W returns air, and the second air return port U outputs air; when the indoor fan X rotates according to the second preset direction, the airflow is driven to flow from the second air return opening U to the air outlet W, namely the indoor fan X rotates positively, the air outlet W outputs air, and the second air return opening U returns air. Because second return air inlet U sets up in the casing below of indoor set, heats at the air conditioner, and when indoor fan rotated according to first default direction, second return air inlet U can blow hot-blast perpendicularly to ground, and hot-blast come-up reduces, and more hot-blast can reach ground region for ground region's heat rapid increase, ground region's temperature rises fast, realizes the effect of ground heating. At this time, the position of the second wind deflector 014 can be adjusted according to the indoor environment temperature to adjust the air output of the second air return opening U, and adjust the floor heating effect of the air conditioner in the floor heating mode, so as to meet the user demand. The indoor fan is reversed in the floor heating mode, so that the air return opening below the indoor unit shell vertically blows hot air to the ground, and the ground area is quickly heated.
Optionally, the heat exchange mode may further include a defrost mode. When the air conditioner is detected to meet the defrosting condition, the first electronic expansion valve 05 is closed, so that part of the refrigerant is reserved in the first indoor heat exchanger 07, the refrigerant in the first indoor heat exchanger 07 is prevented from participating in the refrigerant circulation of the air conditioner, and because the frosting of the indoor unit of the air conditioner usually occurs during heating in winter, the refrigerant reserved in the first indoor heat exchanger 07 after the first electronic expansion valve 05 is closed usually has higher temperature, namely the first indoor heat exchanger 07 has higher waste heat. And then controlling the air conditioner to refrigerate, and controlling the second electronic expansion valve 06 to adjust to a preset opening degree, wherein the preset opening degree is larger than zero, so that the refrigerant can exchange heat through the second indoor heat exchanger 08 connected with the second electronic expansion valve 06 in series when the air conditioner refrigerates. When it is detected that the air conditioner satisfies the defrosting condition, the position of the second air deflector 014 is adjusted according to the indoor environment temperature to adjust the return air amount of the second air return opening U, for example, when the indoor environment temperature is smaller than a preset value, the return air amount of the second air return opening U is reduced by adjusting the position of the second air deflector 014 to reduce the influence of the second indoor heat exchanger 08 on the indoor overall temperature during heat absorption and refrigeration, for example, as shown in fig. 1, the return air amount of the second air return opening U can be adjusted to zero, and when the indoor environment temperature is greater than or equal to the preset value, the return air amount of the second air return opening U is increased by adjusting the position of the second air deflector 014 to avoid the damage of the air conditioner caused by the excessively low temperature in the space where the second indoor heat exchanger 08 is located, for example, the return air amount of the second air return opening U can be adjusted to be 10% of the maximum return air amount. Through setting up two indoor heat exchangers of parallelly connected, when needs defrosting, the refrigerant that makes when indoor refrigeration flows through the second indoor heat exchanger, and does not flow through first indoor heat exchanger to blow hot-blast to indoor through the waste heat of refrigerant in the first indoor heat exchanger, avoid the user to feel great cold and hot difference.
And step S20, adjusting the position of a second wind shield positioned between the first indoor heat exchanger and the second indoor heat exchanger according to the indoor environment temperature so as to adjust the air return quantity of the second air return opening.
In this embodiment, after the indoor environment temperature is obtained, the position of the second wind deflector 014 is adjusted according to the indoor environment temperature to adjust the return air volume of the second return air inlet U. Specifically, a temperature interval in which the indoor environment temperature is located may be obtained, position information corresponding to the temperature interval may be obtained, and the second wind deflector 014 is moved to a position corresponding to the position information, so that the air return volume of the second air return opening U is the air return volume corresponding to the position information, where, because the movement of the second wind deflector 014 is generally implemented by the driving device, the position information may be information such as a driving duration, a driving distance of the driving device, and the like. For example, when the air conditioner is in the cooling mode, if the detected indoor environment temperature is lower than 26 ℃, it indicates that the indoor cooling requirement is lower, so that the air return quantity of the second air return opening U can be reduced, wherein the air return quantity of the second air return opening U can be reduced to zero, that is, the second air return opening U is closed. For example, when the air conditioner is in the heating mode, if the detected indoor environment temperature is higher than 20 ℃, it indicates that the indoor heating requirement is low, so that the air return quantity of the second air return opening U can be reduced, wherein the air return quantity of the second air return opening U can be reduced to zero, that is, the second air return opening U is closed. When the second air return opening U is closed, the second indoor heat exchanger 08 is not required to exchange heat, so that the second electronic expansion valve 06 connected in series with the second indoor heat exchanger 08 can be synchronously closed. When the air conditioner is in the refrigeration mode, if the detected indoor environment temperature is greater than or equal to 26 ℃, the indoor refrigeration requirement is higher, and at the moment, the return air quantity of the second return air inlet U can be increased, so that the indoor unit can be used for rapidly refrigerating.
Optionally, when the indoor environmental temperature adjusts the position of the second windshield 014, a set temperature, which is a temperature set in advance by the user, may also be obtained. Acquiring a difference value between the set temperature and the indoor environment temperature, and when the difference value is not in a preset range, indicating that the indoor refrigeration or heating requirement is higher, correspondingly adjusting the position of the second wind deflector 014, controlling the second wind deflector 014 to move in a first direction so as to increase the return air quantity of the second air return opening U, for example, moving the second wind deflector 014 to a second preset position so as to enable the return air quantity of the second air return opening U to reach the maximum return air quantity, and improving the heat exchange effect of the indoor unit; when the difference is within the preset range, it indicates that the indoor cooling or heating requirement is low, so that the position of the second wind deflector 014 can be correspondingly adjusted, and the second wind deflector 014 is controlled to move towards the second direction so as to reduce the return air amount of the second return air inlet U, for example, the second wind deflector 014 is moved to the first preset position so as to close the second return air inlet U.
Optionally, after the position of the second wind deflector 014 is adjusted according to the indoor environment temperature, if an instruction for closing the air conditioner is received, the second wind deflector 014 is controlled to move to a preset position, and when the second wind deflector 014 is at the preset position, the air return amount of the second air return opening U is zero, namely the second air return opening U is closed. In addition, when receiving the instruction of closing the air conditioner, the first air return port V may be closed, so as to prevent dust from falling into the indoor unit from the second air return port U and the first air return port V.
In the technical scheme disclosed in the embodiment, when the air conditioner is in a heat exchange mode, the indoor environment temperature is obtained, the return air quantity of the second return air inlet is correspondingly regulated according to the indoor environment temperature, a circulating wind field is effectively formed, the flowing degree of indoor air and the heat exchange effect of the indoor unit are regulated, and the comfort of indoor users is improved.
In another embodiment, as shown in fig. 6, after step S20, on the basis of the embodiment shown in fig. 5, the method further includes:
and step S30, adjusting the opening degrees of the first electronic expansion valve and the second electronic expansion valve according to the indoor environment temperature.
In this embodiment, after the air return amount of the second air return opening U is adjusted, the first electronic expansion valve 05 and the second electronic expansion valve 06 are adjusted according to the indoor environment temperature. Specifically, at least one of the ambient temperature and the operating frequency of the air conditioner is acquired, and a second opening value is calculated according to the at least one of the ambient temperature and the operating frequency of the air conditioner. For example, the calculation formula of the second opening value is as follows:
P2=T1+0.7T4+f+50,85≤P2≤350
wherein P2 is a second opening value, T1 is an indoor environment temperature, T4 is an outdoor environment temperature, and f is the operating frequency of the compressor of the air conditioner.
After the second opening value is obtained, the opening of the second electronic expansion valve 06 is adjusted to the second opening value so as to adjust the flow of the refrigerant passing through the second indoor heat exchanger 08 and the heat exchange effect of the indoor unit, so that the indoor user is more comfortable, wherein the second indoor heat exchanger 08 is connected with the first indoor heat exchanger 07 in parallel, and the second indoor heat exchanger 08 is positioned between the second wind deflector 014 and the second air return inlet U.
At least one of the ambient temperature and the operating frequency of the air conditioner is acquired, and a first opening value is calculated according to at least one of the ambient temperature and the operating frequency of the air conditioner, for example, a calculation formula of the first opening value is as follows:
P1=3T1+2T4+3f+50,85≤P1≤350
wherein P1 is a first opening value, T1 is an indoor environment temperature, T4 is an outdoor environment temperature, and f is the operating frequency of a compressor of the air conditioner.
When the first opening value is obtained, the opening of the first electronic expansion valve 05 on the refrigerant branch where the first indoor heat exchanger 07 is located is adjusted to the first opening value, thereby adjusting the flow rate of the refrigerant passing through the first indoor heat exchanger 07.
In the technical scheme disclosed in this embodiment, the first electronic expansion valve 05 and the second electronic expansion valve 06 are adjusted according to the ambient temperature and the operating frequency of the compressor, so that the overall heat exchange capacity of the indoor unit is comprehensively adjusted, and the heat exchange effect of the air conditioner is better.
Optionally, after adjusting the position of the second wind deflector 014 according to the indoor environment temperature, it is detected whether the second wind deflector 014 is at a preset position. When the second wind guard 014 is at the preset position, the air return amount of the second air return opening U is zero, i.e. the second air return opening U is closed. When the second wind guard 014 is not at the preset position, the compressor frequency of the air conditioner is obtained, a second opening value is obtained according to the compressor frequency of the air conditioner and the indoor environment temperature, the second electronic expansion valve 06 of the air conditioner is controlled according to the second opening value so as to adjust the flow rate of the refrigerant passing through the second indoor heat exchanger, specifically, if the second wind guard 014 is detected to be at the preset position, namely, when the second air return opening U is closed, the second electronic expansion valve 06 is controlled to be closed so as to stop the refrigerant circulation of the second indoor heat exchanger 08 connected in series with the second electronic expansion valve 06, and heat exchange is not carried out through the second indoor heat exchanger 08. If it is detected that the second air deflector 014 is not at the preset position, that is, when the second air return opening U is opened, the step of acquiring at least one of the ambient temperature and the operating frequency of the air conditioner, calculating a second opening value according to at least one of the ambient temperature and the operating frequency of the air conditioner, and adjusting the second electronic expansion valve 06 according to the second opening value is performed.
Optionally, when the second electronic expansion valve 06 is connected in series to the refrigerant branch where the second indoor heat exchanger 08 is located and the first electronic expansion valve 05 is connected in series to the refrigerant branch where the first indoor heat exchanger 07 is located, if it is detected that the second wind deflector 014 is not located at the preset position, that is, after the second air return opening U is opened, the step of obtaining the first opening value is performed, and the first electronic expansion valve 05 is adjusted according to the first opening value.
Whether the second air return opening U is closed or not is detected, and when the second air return opening U is not closed, the flow of the refrigerant passing through the second indoor heat exchanger 08 is regulated according to the running frequency of the air conditioner and the ambient temperature, so that the heat exchange capacity of the indoor unit is regulated, the heat exchange capacity of the indoor unit is matched with the ambient, and an indoor user is more comfortable.
Optionally, the first electronic expansion valve 05 and the second electronic expansion valve 06 may also be replaced by one electronic expansion valve disposed in the refrigerant trunk, that is, a third electronic expansion valve, where the first indoor heat exchanger 07 and the second indoor heat exchanger 08 are connected in series to the third electronic expansion valve, and the heat exchange degree of the first indoor heat exchanger 07 and the second indoor heat exchanger 08 is adjusted by controlling the opening of the third electronic expansion valve, at this time, the heat exchange effect of the first indoor heat exchanger 07 and the second indoor heat exchanger 08 is the same, and the heat exchange capability of the indoor unit is improved by two heat exchanges of the indoor unit return air. The opening degree of the third electronic expansion valve may also be adjusted according to the indoor environment temperature, for example, the first opening degree value and/or the second opening degree value may be determined according to the indoor environment temperature, and the opening degree of the third electronic expansion valve may be adjusted according to the first opening degree value and/or the second opening degree value.
In yet another embodiment, as shown in fig. 7, on the basis of the embodiment shown in any one of fig. 5 to 6, step S20 includes:
step S21, when the air conditioner is in a heating mode and the indoor environment temperature is smaller than a first preset temperature, controlling the second wind shield to move in a first direction so as to increase the return air quantity of the second return air inlet;
after step S21, further includes:
and S41, controlling the first wind shield to move towards a third direction so as to reduce the air return quantity of the first air return opening.
In this embodiment, the air return quantity of the second air return opening U is comprehensively adjusted according to the heat exchange mode of the air conditioner and the indoor environment temperature. Specifically, if it is detected that the air conditioner is in the heating mode and the indoor environment temperature is less than the first preset temperature, this indicates that the current indoor heating requirement is higher, so the second wind deflector 014 can be controlled to move in the first direction to increase the air return amount of the second air return opening U, for example, the air return amount of the second air return opening U can be adjusted to the maximum air return amount. Because the second air return opening U is arranged below the indoor unit shell, the air flow of the indoor ground area can be accelerated, the indoor ground area is preferentially subjected to heat exchange, and indoor users in the ground area feel more comfortable. Optionally, after the air return amount of the second air return opening U is increased, the first air baffle 013 may be further controlled to move in the third direction, so as to reduce the air return amount of the first air return opening V, for example, the first air return opening V may be closed, and the air return amount of the first air return opening V is zero, so that the cold air flows in the first air return opening V in the upper indoor area, the heat exchange of the indoor unit is concentrated in the indoor ground area, and the indoor user in the ground area feels more comfortable. The first direction and the third direction are not particularly limited.
Optionally, if it is detected that the air conditioner is in the cooling mode and the indoor environment temperature is greater than the second preset temperature, this indicates that the current indoor cooling requirement is high, and therefore, the second wind deflector 014 may be controlled to move in the second direction to reduce the air return amount of the second air return opening U, for example, the second air return opening U may be closed, and the air return amount of the second air return opening U is zero. Because the second air return opening U sets up in indoor set casing below, and first air return opening V sets up in indoor set casing top, consequently can accelerate the air flow of indoor upper region, the regional heat transfer of indoor upper region of priority, and indoor hot air can come up to indoor upper region gradually to realize indoor air's even refrigeration. Optionally, after the return air volume of the second return air opening U is reduced, the first wind deflector 013 can be controlled to move in the fourth direction, so as to increase the return air volume of the first return air opening V, for example, the return air volume of the first return air opening V can be adjusted to be the maximum return air volume, so that the air volume of the air outlet W is also increased, and the heat exchange effect of the indoor unit on the indoor upper layer area is improved. The second direction and the fourth direction are not particularly limited.
In the technical scheme disclosed in the embodiment, the air return quantity of the second air return opening U and the air return quantity of the first air return opening V are comprehensively adjusted according to the heat exchange mode of the air conditioner and the indoor environment temperature, so that a better heat exchange effect of the air conditioner is realized.
In addition, the embodiment of the invention also provides a computer storage medium, wherein the computer storage medium stores a control program of the air conditioner, and the control program of the air conditioner realizes the steps of the control method of the air conditioner in each embodiment when being executed by a processor.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) as described above, comprising instructions for causing a terminal device (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present invention.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.

Claims (8)

1. The indoor unit of the air conditioner comprises an indoor fan, an air outlet, a first air return opening and a second air return opening, wherein the first air return opening is positioned above a shell of the indoor unit, and the second air return opening is positioned below the shell of the indoor unit; the indoor unit further comprises a first indoor heat exchanger and a second indoor heat exchanger which is connected with the first indoor heat exchanger in parallel, wherein the first indoor heat exchanger is used for exchanging heat between the return air of the first air return opening and the return air of the second air return opening, the second indoor heat exchanger is positioned between the first indoor heat exchanger and the second air return opening, the second indoor heat exchanger is used for exchanging heat between the return air of the second air return opening, and the first indoor heat exchanger and the second indoor heat exchanger are respectively positioned in different refrigerant branches;
The indoor unit further comprises a first wind deflector, wherein the first wind deflector is positioned between the first indoor heat exchanger and the first air return port or positioned at the first air return port, and the first wind deflector is used for adjusting the air return quantity of the first air return port;
the indoor unit further comprises a second wind deflector, the second wind deflector is located between the first indoor heat exchanger and the second indoor heat exchanger, and the second wind deflector is used for adjusting the air return quantity of the second air return opening.
2. The air conditioner of claim 1, wherein when the air conditioner is in a floor heating mode, the indoor fan rotates according to a first preset direction to drive air flow from the air outlet to the second air return opening, wherein the first wind shield is in a first preset position to reduce the air outlet of the first air return opening, and/or the second wind shield is in a third preset position to increase the air outlet of the second air return opening.
3. The air conditioner of claim 1, wherein the first indoor heat exchanger is connected in series with a first electronic expansion valve and the second indoor heat exchanger is connected in series with a second electronic expansion valve, wherein when the air conditioner is in a defrost mode, the first electronic expansion valve is in a closed state, the second electronic expansion valve is in an open state, and the second air deflector is in a fourth preset position to close the second air return opening.
4. A control method of an air conditioner, characterized in that the control method of an air conditioner is applied to the air conditioner as set forth in any one of claims 1 to 3, the control method of an air conditioner comprising the steps of:
when the air conditioner is in a heat exchange mode, acquiring indoor environment temperature, wherein the heat exchange mode comprises a refrigeration mode and/or a heating mode; the method comprises the steps of,
and adjusting the position of a second wind deflector positioned between the first indoor heat exchanger and the second indoor heat exchanger according to the indoor environment temperature so as to adjust the air return quantity of the second air return opening.
5. The method of controlling an air conditioner as claimed in claim 4, wherein the adjusting the position of the second wind deflector between the first indoor heat exchanger and the second indoor heat exchanger according to the indoor environment temperature to adjust the return air volume of the second return air inlet comprises:
acquiring a difference value between a set temperature and the indoor environment temperature;
when the difference value is not in the preset range, controlling the second wind deflector to move in the first direction so as to increase the return air quantity of the second return air inlet; the method comprises the steps of,
and when the difference value is in a preset range, controlling the second wind shield to move towards a second direction so as to reduce the return air quantity of the second return air inlet.
6. The method for controlling an air conditioner as set forth in claim 5, wherein said indoor unit further includes a first wind deflector positioned between said first indoor heat exchanger and said first return air inlet or at said first return air inlet for adjusting a return air amount of said first return air inlet, and said step of adjusting a position of a second wind deflector positioned between said first indoor heat exchanger and said second indoor heat exchanger according to said indoor environment temperature to adjust a return air amount of said second return air inlet includes:
when the air conditioner is in a heating mode and the indoor environment temperature is smaller than a first preset temperature, the second wind shield is controlled to move in a first direction so as to increase the return air quantity of the second air return opening; the method comprises the steps of,
after the step of controlling the second wind deflector to move towards the first direction to increase the air return quantity of the second air return opening, the method further comprises the following steps:
and controlling the first wind shield to move towards a third direction so as to reduce the air return quantity of the first air return opening.
7. The method of controlling an air conditioner as claimed in claim 4, wherein the adjusting the position of the second wind deflector between the first indoor heat exchanger and the second indoor heat exchanger according to the indoor environment temperature to adjust the return air volume of the second return air inlet comprises:
When the air conditioner is in a refrigeration mode and the indoor environment temperature is higher than a second preset temperature, controlling the second wind shield to move in a second direction so as to reduce the return air quantity of the second air return opening; the method comprises the steps of,
after the step of controlling the second wind deflector to move towards the second direction to reduce the air return quantity of the second air return opening, the method further comprises the following steps:
and controlling the first wind shield to move towards the fourth direction so as to increase the return air quantity of the first air return opening, wherein the first wind shield is positioned between the first indoor heat exchanger and the first air return opening or positioned at the first air return opening.
8. A computer storage medium, wherein a control program of an air conditioner is stored on the computer storage medium, and the control program of the air conditioner, when executed by a processor, implements the steps of the control method of an air conditioner according to any one of claims 4 to 7.
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