CN111578388A - Air condensing units and air conditioner - Google Patents
Air condensing units and air conditioner Download PDFInfo
- Publication number
- CN111578388A CN111578388A CN202010273004.2A CN202010273004A CN111578388A CN 111578388 A CN111578388 A CN 111578388A CN 202010273004 A CN202010273004 A CN 202010273004A CN 111578388 A CN111578388 A CN 111578388A
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- Prior art keywords
- outdoor
- heat exchanger
- wind shielding
- guide rail
- air conditioner
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/14—Heat exchangers specially adapted for separate outdoor units
- F24F1/16—Arrangement or mounting thereof
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/38—Fan details of outdoor units, e.g. bell-mouth shaped inlets or fan mountings
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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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor units
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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
- F24F11/62—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
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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
- F24F11/70—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
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/20—Casings or covers
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/247—Active noise-suppression
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The invention discloses an air conditioner outdoor unit and an air conditioner, wherein the air conditioner outdoor unit comprises: a housing; two outdoor heat exchangers provided in the casing and performing heat exchange between a refrigerant and outdoor air in a vapor compression heating cycle; the outdoor fan is arranged in the shell and realizes the heat exchange between the outdoor heat exchanger and flowing air; and the wind shielding device is arranged in the shell and comprises a control module, a driving module, an extension guide part and a wind shielding part capable of extending in a telescopic manner, wherein the driving module is controlled by the control module and drives the wind shielding part to move along the extension guide part, so that the wind shielding part can selectively form a wind screen between one of the two heat exchangers and the outdoor fan. The invention can realize the cooperative operation of the defrosting mode and the heating mode, so that the indoor side heating can be continuously operated while the outdoor unit of the air conditioner defrosts.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner outdoor unit and an air conditioner.
Background
When the air conditioner operates in a heating mode in winter, the liquid refrigerant in the outdoor heat exchanger evaporates and absorbs heat, so that the surface temperature of the outdoor heat exchanger is low, and condensed water is easy to frost. The conventional defrosting method is to control the fans of the indoor unit and the outdoor unit of the air conditioner to stop rotating, and realize that high-temperature and high-pressure liquid refrigerant enters the outdoor heat exchanger by reversing through the four-way valve, so that the frost on the surface of the heat exchanger is melted. And after the frost is completely melted, the four-way valve is controlled to change direction so that the air conditioner continues to normally operate. During the defrosting lasts, because of the air conditioner indoor side fan stall and the indoor side heat exchanger evaporation heat absorption, the indoor side can stop heating and even can the temperature reduce, influence user experience.
Disclosure of Invention
The invention provides an air conditioner outdoor unit and an air conditioner, which aim to solve the technical problem that the heating of the existing air conditioner outdoor unit is influenced during defrosting.
A first embodiment of the present invention provides an outdoor unit of an air conditioner, including: a housing; two outdoor heat exchangers provided in the casing and performing heat exchange between a refrigerant and outdoor air in a vapor compression heating cycle; the outdoor fan is arranged in the shell and realizes the heat exchange between the outdoor heat exchanger and flowing air; and the wind shielding device is arranged in the shell and comprises a control module, a driving module, an extension guide part and a wind shielding part capable of extending in a telescopic manner, wherein the driving module is controlled by the control module and drives the wind shielding part to move along the extension guide part, so that the wind shielding part can selectively form a wind screen between one of the two heat exchangers and the outdoor fan. When the defrosting mode is operated, the wind shielding part is controlled to be unfolded to separate one outdoor heat exchanger from the outdoor fan, the defrosting operation is carried out on the outdoor heat exchanger, after the defrosting operation of the outdoor heat exchanger is finished, the wind shielding part is controlled to be contracted through the control system, then the wind shielding part is unfolded to separate the other outdoor heat exchanger from the outdoor fan, and the defrosting operation is carried out on the outdoor heat exchanger. During defrosting of one outdoor heat exchanger, the other outdoor heat exchanger can normally operate to heat, so that defrosting of the outdoor unit of the air conditioner is realized, and meanwhile, indoor side heating can be continuously operated.
In an outdoor unit of an air conditioner according to a first embodiment of the present invention, the casing includes, after the wind shielding part is unfolded: the outdoor fan and the outdoor heat exchanger for heating are positioned in the air supply area; and the outdoor heat exchanger for defrosting is positioned in the air isolation area. During defrosting of one outdoor heat exchanger, the other outdoor heat exchanger can normally operate to heat, so that defrosting of the outdoor unit of the air conditioner is realized, and meanwhile, indoor side heating can be continuously operated.
In an outdoor unit of an air conditioner according to a first embodiment of the present invention, the wind blocking device further includes: and the transmission part is connected with the driving module and the wind shielding part so as to convert the output power of the driving module into power for driving the wind shielding part to extend or contract.
In an outdoor unit of an air conditioner according to a first embodiment of the present invention, the wind blocking device further includes: and the accommodating part is arranged between the two outdoor heat exchangers so as to accommodate the wind shielding part. The accommodating part can be used for storing the wind shielding part into the accommodating part completely, the opening of the accommodating part can be provided with the openable and closable protective cover, and the opening protective cover is closed and protected when the wind shielding part is in a storage state, so that the wind shielding part can be protected.
In an outdoor unit of an air conditioner according to a first embodiment of the present invention, the extension guide part includes:
the straight-line section of the first guide rail is positioned on one side between the two outdoor heat exchangers, and the bent section of the first guide rail extends to one inner wall of the shell around the top of one of the outdoor heat exchangers, wherein one end of the straight-line section of the first guide rail is connected to one side of the opening of the accommodating part, the other end of the straight-line section of the first guide rail is connected to one end of the bent section of the first guide rail, and the other end of the bent section of the first guide rail is connected to one inner wall of the shell;
the straight line section of the second guide rail is positioned on the other side between the two outdoor heat exchangers, the bent section of the second guide rail extends to the other inner wall of the shell around the top of the other outdoor heat exchanger, one end of the straight line section of the second guide rail is connected to the other side of the opening of the containing part, the other end of the straight line section of the second guide rail is connected to one end of the bent section of the second guide rail, and the other end of the bent section of the second guide rail is connected to the other inner wall of the shell.
The telescopic extension movement process of the wind shielding part is guided by arranging the two guide rails, and the wind shielding part can be controlled to move along a preset track.
In an outdoor unit of an air conditioner according to a first embodiment of the present invention, the wind blocking device further includes: and the reversing module is arranged between the accommodating part and the extending guide part and is controlled by the control module so as to guide the wind shielding part to the first guide rail or the second guide rail. The reversing module controlled by the control module can be used for controllably guiding the wind shielding part, so that the wind shielding part can extend along the target guide rail to form a wind isolation area for defrosting operation.
In the outdoor unit of an air conditioner according to the first embodiment of the present invention, the wind blocking portion is formed by connecting a plurality of rigid blocking pieces in series by flexible connecting pieces.
In the outdoor unit of an air conditioner according to the first embodiment of the present invention, the wind shielding portion is made of flexible fiber cloth, and an elastic metal sheet is disposed on an edge of the flexible fiber cloth moving along the extended guide portion.
A second embodiment of the present invention provides an outdoor unit of an air conditioner, including: a housing; a first outdoor heat exchanger provided in the casing and performing heat exchange between a refrigerant and outdoor air in a vapor compression heating cycle; a second outdoor heat exchanger provided in the casing and performing heat exchange between a refrigerant and outdoor air in a vapor compression heating cycle; the first outdoor fan is arranged in the shell and realizes the heat exchange between the first outdoor heat exchanger and flowing air; the second outdoor fan is arranged in the shell and realizes the heat exchange between the second outdoor heat exchanger and flowing air; and the wind shielding part is arranged among the first outdoor heat exchanger, the first outdoor fan, the second outdoor heat exchanger and the second outdoor fan so as to realize wind zone isolation.
A third embodiment of the present invention provides an air conditioner including an indoor unit of an air conditioner and any one of the outdoor units of the air conditioner.
Compared with the prior art, the embodiment of the invention has the following beneficial effects:
in the outdoor unit of an air conditioner according to the first embodiment of the present invention, by providing two outdoor heat exchangers, each of the outdoor heat exchangers can be operated independently, i.e., one as an evaporator and the other as a condenser. Therefore, when the heat exchanger needs to be defrosted when the heating mode is operated in winter, the cooperative operation of the defrosting mode and the heating mode can be realized, so that the indoor side heating can be continuously operated while the outdoor unit of the air conditioner is defrosted.
In the air-conditioning outdoor unit in the second embodiment of the present invention, the air shielding portion is disposed between the two outdoor heat exchangers and the two corresponding outdoor fans to achieve air-zone isolation, so that when the heat exchangers need to be defrosted in the heating mode in winter, the cooperative operation of the defrosting mode and the heating mode can be achieved, and the influence of the outdoor fans on the heat exchangers can be avoided, so that the indoor side heating can be performed without interruption while the air-conditioning outdoor unit is defrosted.
In the air conditioner according to the third embodiment of the present invention, the outdoor unit of the air conditioner is provided with two outdoor heat exchangers, and each of the two outdoor heat exchangers is capable of operating independently, i.e., one of the two outdoor heat exchangers functions as an evaporator and the other one functions as a condenser. Therefore, when the heat exchanger needs to be defrosted when the heating mode is operated in winter, the cooperative operation of the defrosting mode and the heating mode can be realized, so that the indoor side heating can be continuously operated while the outdoor unit of the air conditioner is defrosted.
Drawings
Fig. 1 is a schematic structural view of an outdoor unit of an air conditioner according to an embodiment of the present invention;
fig. 2 is another schematic structural diagram of an outdoor unit of an air conditioner according to an embodiment of the present invention;
fig. 3 is a schematic view of another structure of an outdoor unit of an air conditioner according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a receiving portion according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a wind shielding portion according to an embodiment of the present invention;
fig. 6 is another schematic structural view of the wind shielding portion according to an embodiment of the present invention;
wherein the reference numbers in the drawings of the specification are as follows:
1: an outdoor heat exchanger; 2: an outdoor fan; 3: a first guide rail; 4: a second guide rail; 5: a drive module; 6: a transmission member; 7: an accommodating portion; 8: a commutation module; 9: a wind shielding part; 10: a protective cover; 11: a rigid baffle; 12: a flexible series connection; 13: a resilient metal sheet; 14: a flexible fiber cloth.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Overall structure and principle:
the air conditioner performs a refrigeration cycle of the air conditioner by using a compressor, a condenser, an expansion valve, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to the air that has been conditioned and heat-exchanged.
The compressor compresses a refrigerant gas in a high-temperature and high-pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.
The expansion valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator can achieve a cooling effect by heat-exchanging with a material to be cooled using latent heat of evaporation of a refrigerant. The air conditioner can adjust the temperature of the indoor space throughout the cycle.
The outdoor unit of the air conditioner refers to a portion of a refrigeration cycle including a compressor and an outdoor heat exchanger 1, an indoor unit of the air conditioner includes an indoor heat exchanger, and an expansion valve may be provided in the indoor unit or the outdoor unit.
The indoor heat exchanger and the outdoor heat exchanger serve as a condenser or an evaporator. When the indoor heat exchanger is used as a condenser, the air conditioner is used as a heater in a heating mode, and when the indoor heat exchanger is used as an evaporator, the air conditioner is used as a cooler in a cooling mode.
The air conditioner outdoor unit of the application adopts a double heat exchanger design, and the two outdoor heat exchangers 1 can independently operate, namely, one is used as an evaporator, and the other is used as a condenser. When the outdoor heat exchangers 1 need to be defrosted in a heating mode in winter, one outdoor heat exchanger 1 can be used as an evaporator to perform heating normally, the other outdoor heat exchanger 1 is used as a condenser, and defrosting is performed on the condenser through a high-temperature high-pressure liquid refrigerant. And after defrosting is finished, the functions of the two heat exchangers are switched. Therefore, the cooperative operation of the defrosting mode and the heating mode is realized, and the indoor side heating can be continuously operated while the air conditioner outdoor unit is defrosted.
When the outdoor heat exchanger 1 is defrosting, the outdoor cold air flowing through the surface of the outdoor heat exchanger 1 affects the defrosting effect, prolongs the defrosting time and affects the energy efficiency, so for the defrosting scheme without stopping the double heat exchangers, the outdoor machine cavity needs to be physically partitioned. Namely, the condensing side heat exchanger does not need wind to pass through the fins, and the evaporating side heat exchanger needs wind to pass through the fins.
Example 1:
referring to fig. 1, the outdoor unit of an air conditioner shown in fig. 1 includes: a housing;
two outdoor heat exchangers 1 provided in the casing and performing heat exchange between a refrigerant and outdoor air in a vapor compression heating cycle; when frosting occurs in the heating mode, one outdoor heat exchanger 1 serves as an evaporator to ensure that the indoor side heat exchanger normally operates for heating, and the other outdoor heat exchanger serves as a condenser for defrosting operation;
the outdoor fan 2 is arranged in the shell and realizes the heat exchange between the outdoor heat exchanger 1 and flowing air; the single-fan type outdoor fan 2 is usually located at a position corresponding to the middle of the two outdoor heat exchangers 1, and is used for blowing air to the two outdoor heat exchangers 1;
the wind shielding device is arranged in the shell and comprises a control module, a driving module 5, an extension guide part and a wind shielding part 9 capable of extending in a telescopic mode, wherein the driving module 5 is controlled by the control module and drives the wind shielding part 9 to move along the extension guide part, so that the wind shielding part 9 can be selectively arranged between one of the outdoor heat exchangers 1 and the outdoor fan 2 to form a wind screen.
Because the outdoor fan 2 of the single-fan type is usually located at the position corresponding to the middle of the two outdoor heat exchangers 1, and the air area between the two outdoor heat exchangers 1 cannot be isolated through the fixed partition plate, the adjustable air shielding device is arranged, when one outdoor heat exchanger 1 needs to be defrosted, the air shielding part 9 is controlled to isolate the outdoor heat exchanger 1 from the outdoor fan 2, and the outdoor heat exchanger 1 is prevented from being affected by the air generated by the outdoor fan 2, so that the outdoor heat exchanger 1 is defrosted independently.
In some embodiments, after the wind screen 9 is unfolded, the inside of the cabinet includes:
the outdoor fan 2 and the outdoor heat exchanger 1 for heating are positioned in the air supply area; the outdoor heat exchanger 1 in the air supply area is used as an evaporator to ensure the normal operation heating mode of the air conditioner;
the air insulation area is internally provided with one outdoor heat exchanger 1 for defrosting; the outdoor heat exchanger 1 in the wind isolation area shields the wind generated by the outdoor fan 2 by the wind shielding part 9, and serves as a condenser to defrost by a high-temperature and high-pressure liquid refrigerant during the wind isolation period.
In some embodiments, the wind shielding device further includes a transmission member 6 connecting the driving module 5 and the wind shielding portion 9 to convert the output power of the driving module 5 into a power for driving the wind shielding portion 9 to move in an extending or contracting manner.
In some embodiments, the driving module 5 may include a servo motor therein, and the transmission member 6 is used for transmitting power output by the servo motor to the wind shielding part 9, so that the wind shielding part 9 can be unfolded outwards or retracted inwards. In some embodiments, the transmission member 6 may be implemented by a belt transmission, a gear transmission, a chain transmission, a screw transmission, or the like. Because the transmission component 6 is adopted for power transmission, the driving module 5 can be arranged at a proper position in the casing according to requirements, and the expandability of the internal structure of the air conditioner outdoor unit is increased.
In some embodiments, the wind shielding apparatus further includes a receiving portion 7 disposed between two of the outdoor heat exchangers 1 to receive the wind shielding portion 9. One side of the wind shielding part 9 is fixed in the accommodating part 7, and the other side can move from bottom to top along the extending guide part.
In some embodiments, when the wind shielding portion 9 is recovered, the accommodating portion 7 can completely accommodate the wind shielding portion 9, and an openable and closable protecting cover 10 can be disposed at an opening of the accommodating portion 7, and when the wind shielding portion 9 is in an accommodating state, the protecting cover 10 at the opening is closed for protection, so that the wind shielding portion 9 can be protected, and the structural stability of the outdoor unit of the air conditioner is improved.
In some embodiments, the extension guide includes:
a first guide rail 3, a straight line section of the first guide rail 3 being located at one side between two outdoor heat exchangers 1, and a bent section of the first guide rail 3 extending to an inner wall of the casing around the top of one of the outdoor heat exchangers 1, wherein one end of the straight line section of the first guide rail 3 is connected to one side of an opening of the accommodating portion 7, the other end of the straight line section of the first guide rail 3 is connected to one end of the bent section of the first guide rail 3, and the other end of the bent section of the first guide rail 3 is connected to one inner wall of the casing;
the straight line section of the second guide rail 4 is located on the other side between the two outdoor heat exchangers 1, the bent section of the second guide rail 4 extends to the other inner wall of the casing around the top of the other outdoor heat exchanger 1, wherein one end of the straight line section of the second guide rail 4 is connected to the other side of the opening of the accommodating part 7, the other end of the straight line section of the second guide rail 4 is connected to one end of the bent section of the second guide rail 4, and the other end of the bent section of the second guide rail 4 is connected to the other inner wall of the casing.
In some embodiments, the first guide rail 3 and the second guide rail 4 are used to guide the shielding portions to the inner wall of the cabinet at the ends of the two outdoor heat exchangers 1, respectively.
In some embodiments, the first guide rail 3 and the second guide rail 4 may also be L-shaped, and include a vertical section, a transition section, and a horizontal section, and a transition fillet is disposed at a junction of the horizontal section and the vertical section to facilitate the operation of the wind shielding portion 9. In addition, the guide rail can contain components such as a rotating wheel and the like so as to facilitate the operation of the shielding part. The guide rail upwards extends from the opening of the accommodating part 7, extends to the top of the heat exchanger, and then extends leftwards and rightwards respectively until the leftmost side and the rightwards of the heat exchanger, so that one of the heat exchangers is isolated from the air zone of the outdoor fan 2.
In some embodiments, the two guide rails are provided to guide the telescopic extension movement process of the wind shielding portion 9, so that the wind shielding portion 9 can be controlled to move along a preset track, thereby increasing the structural stability of the outdoor unit of the air conditioner.
In some embodiments, the wind shielding device further includes a reversing module 8, which is disposed between the accommodating portion 7 and the extending guide portion, and is controlled by the control module to guide the wind shielding portion 9 to the first guide rail 3 or the second guide rail 4. The reversing module 8 enables the wind screen 9 to be selectively deployed between the two rails, leading onto the first rail 3 or the second rail 4. In some embodiments, the commutation module 8 can be of the electromagnetic attraction type or the mechanical commutation type.
In some embodiments, the reversing module 8 controls the wind shielding part 9 to shield leftwards or rightwards until the wind shielding part 9 runs to the leftmost side or the rightmost side of the top of the heat exchanger, so that the single-side heat exchanger is completely shielded. The wind shielding part 9 needs to have certain flexibility and be capable of flexibly deforming so as to realize the curling and storage in the accommodating part 7 and the operation along the guide rail. Meanwhile, certain rigidity is required to ensure that the guide rail runs from bottom to top without sinking due to gravity or generating noise due to wind blowing.
In some embodiments, the reversing module 8 may also be located at the top of the guide rail in the vertical direction. After the wind shielding part 9 moves upwards to the top of the guide rail, the wind shielding part 9 moves leftwards or rightwards through the reversing module 8.
In some embodiments, the wind shielding portion 9 may be formed by connecting a plurality of rigid baffles 11 in series through a flexible series 12. A plurality of continuous narrow rigid baffle plates 11 can be selected and flexibly connected in series. The scheme can realize flexible bending in a larger space and can form a rigid body under the constraint of the guide rails at two sides.
In some embodiments, the wind shielding portion 9 may be a flexible fiber cloth 14, and an edge of the flexible fiber cloth 14 moving along the extending guiding portion is provided with an elastic metal sheet 13, the elastic metal sheet 13 is used for providing a rigid support, and the middle of the flexible fiber cloth 14 is made of a material such as a flexible fiber cloth 14, so as to facilitate the curling deformation.
In some embodiments, the outdoor unit of the air conditioner may be operated as follows:
during defrosting operation, the control module sends a signal to the driving module 5, opens the upper protective cover 10 of the accommodating part 7 through the transmission mechanism, and enables the wind shielding part 9 to be unfolded upwards. At the same time, the wind shield 9 is guided to the left guide rail by the direction changing module 8. The wind shielding part 9 moves upwards along the guide rail, and then moves leftwards after reaching the top until the leftmost side of the heat exchanger. After the wind shielding part 9 runs in place, the control module sends a signal to the refrigerant system reversing valve. And the left heat exchanger enters a high-temperature and high-pressure refrigerant through flow path adjustment to defrost the heat exchanger. In the process, the right heat exchanger is always used as a normal evaporator to participate in the heating operation of the indoor unit.
After the defrosting of the left heat exchanger is finished, the control module controls the wind shielding part 9 to return to the accommodating part 7 along the guide rail. Subsequently, the wind screen 9 is unfolded upward again. The reversing module 8 guides the wind shielding part 9 to the right guide rail. The wind shielding part 9 moves upwards along the guide rail, and then moves rightwards after reaching the top until the rightmost side of the heat exchanger. After the wind shielding part 9 runs in place, the control module sends a signal to the refrigerant system reversing valve. And the right heat exchanger enters a high-temperature and high-pressure refrigerant through flow path adjustment to defrost the heat exchanger. In the process, the left heat exchanger is always used as a normal evaporator to participate in the heating operation of the indoor unit. After the right heat exchanger is defrosted, the wind shielding part 9 retracts to the accommodating part 7 along the guide rail, and the protective cover 10 of the accommodating part 7 is closed. And the system reversing valve is adjusted, and the heat exchangers on the two sides normally participate in the heating operation of the indoor unit.
The above is a divisional operation mode of a complete defrosting cycle, wherein the defrosting sequence of the left and right heat exchangers is not sequential.
In the air conditioner outdoor unit provided by the embodiment of the invention, by arranging the two outdoor heat exchangers 1, each outdoor heat exchanger 1 can independently operate, namely, one outdoor heat exchanger is used as an evaporator, and the other outdoor heat exchanger is used as a condenser. Therefore, when the heat exchanger needs to be defrosted when the heating mode is operated in winter, the cooperative operation of the defrosting mode and the heating mode can be realized, so that the indoor side heating can be continuously operated while the outdoor unit of the air conditioner is defrosted.
Example 2:
referring to fig. 2, the outdoor unit of an air conditioner shown in fig. 2 includes: a housing;
a first outdoor heat exchanger 1 provided in the casing and performing heat exchange between a refrigerant and outdoor air in a vapor compression heating cycle;
a second outdoor heat exchanger 1 provided in the casing and performing heat exchange between a refrigerant and outdoor air in a vapor compression heating cycle;
the first outdoor fan 2 is arranged in the shell and realizes the heat exchange between the first outdoor heat exchanger 1 and flowing air;
the second outdoor fan 2 is arranged in the shell and realizes the heat exchange between the second outdoor heat exchanger 1 and flowing air;
and the wind shielding part 9 is arranged among the first outdoor heat exchanger 1, the first outdoor fan 2, the second outdoor heat exchanger 1 and the second outdoor fan 2 so as to realize wind zone isolation.
The air conditioner outdoor unit provided by the embodiment of the invention is of a double-fan type, the two outdoor fans 2 and the two outdoor heat exchangers 1 are arranged in one-to-one correspondence, and the middle part of the air conditioner outdoor unit is provided with the fixed wind shielding part 9 for separating the two heat exchangers, so that the wind areas of the two heat exchangers are isolated from each other.
In the air-conditioning outdoor unit of embodiment 2 of the present invention, the air blocking portion 9 is provided between the two outdoor heat exchangers 1 and the two corresponding outdoor fans 2 to achieve air-zone isolation, so that when the heat exchangers need to be defrosted in a heating mode in winter, cooperative operation of the defrosting mode and the heating mode can be achieved, and influence of the outdoor fans 2 on the heat exchangers can be avoided, so that the indoor side heating can be performed without interruption while the air-conditioning outdoor unit is defrosted.
Example 3:
an embodiment 3 of the present invention provides an air conditioner including an air conditioner indoor unit and the air conditioner outdoor unit according to any one of embodiments 1 and 2.
In the air conditioner according to embodiment 3 of the present invention, the outdoor unit of the air conditioner is provided with two outdoor heat exchangers 1, and each outdoor heat exchanger 1 can operate independently, that is, one of the outdoor heat exchangers serves as an evaporator and the other serves as a condenser. Therefore, when the heat exchanger needs to be defrosted when the heating mode is operated in winter, the cooperative operation of the defrosting mode and the heating mode can be realized, so that the indoor side heating can be continuously operated while the outdoor unit of the air conditioner is defrosted.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (10)
1. An outdoor unit of an air conditioner, comprising:
a housing;
two outdoor heat exchangers provided in the casing and performing heat exchange between a refrigerant and outdoor air in a vapor compression heating cycle;
the outdoor fan is arranged in the shell and realizes the heat exchange between the outdoor heat exchanger and flowing air; and the number of the first and second groups,
the wind shielding device is arranged in the shell and comprises a control module, a driving module, an extension guide part and a wind shielding part capable of extending in a telescopic mode, wherein the driving module is controlled by the control module and drives the wind shielding part to move along the extension guide part, so that the wind shielding part can be selectively arranged between one of the outdoor heat exchangers and the outdoor fan to form a wind screen.
2. The outdoor unit of claim 1, wherein the inside of the casing after the wind shielding part is unfolded comprises:
the outdoor fan and the outdoor heat exchanger for heating are positioned in the air supply area;
and the outdoor heat exchanger for defrosting is positioned in the air isolation area.
3. The outdoor unit of an air conditioner as claimed in claim 1, wherein the wind shielding means further comprises:
and the transmission part is connected with the driving module and the wind shielding part so as to convert the output power of the driving module into power for driving the wind shielding part to extend or contract.
4. The outdoor unit of an air conditioner as claimed in claim 1, wherein the wind shielding means further comprises:
and the accommodating part is arranged between the two outdoor heat exchangers so as to accommodate the wind shielding part.
5. The outdoor unit of claim 4, wherein the extension guide part comprises:
the straight-line section of the first guide rail is positioned on one side between the two outdoor heat exchangers, and the bent section of the first guide rail extends to one inner wall of the shell around the top of one of the outdoor heat exchangers, wherein one end of the straight-line section of the first guide rail is connected to one side of the opening of the accommodating part, the other end of the straight-line section of the first guide rail is connected to one end of the bent section of the first guide rail, and the other end of the bent section of the first guide rail is connected to one inner wall of the shell;
the straight line section of the second guide rail is positioned on the other side between the two outdoor heat exchangers, the bent section of the second guide rail extends to the other inner wall of the shell around the top of the other outdoor heat exchanger, one end of the straight line section of the second guide rail is connected to the other side of the opening of the containing part, the other end of the straight line section of the second guide rail is connected to one end of the bent section of the second guide rail, and the other end of the bent section of the second guide rail is connected to the other inner wall of the shell.
6. The outdoor unit of an air conditioner as claimed in claim 5, wherein the wind shielding means further comprises:
and the reversing module is arranged between the accommodating part and the extending guide part and is controlled by the control module so as to guide the wind shielding part to the first guide rail or the second guide rail.
7. The outdoor unit of any one of claims 1 to 6, wherein the wind blocking part is formed by connecting a plurality of rigid blocking pieces in series by flexible connecting members.
8. The outdoor unit of any one of claims 1 to 6, wherein the wind blocking part is a flexible fabric cloth, and an elastic metal sheet is provided on an edge of the flexible fabric cloth moving along the extended guide part.
9. An outdoor unit of an air conditioner, comprising:
a housing;
a first outdoor heat exchanger provided in the casing and performing heat exchange between a refrigerant and outdoor air in a vapor compression heating cycle;
a second outdoor heat exchanger provided in the casing and performing heat exchange between a refrigerant and outdoor air in a vapor compression heating cycle;
the first outdoor fan is arranged in the shell and realizes the heat exchange between the first outdoor heat exchanger and flowing air;
the second outdoor fan is arranged in the shell and realizes the heat exchange between the second outdoor heat exchanger and flowing air;
and the wind shielding part is arranged among the first outdoor heat exchanger, the first outdoor fan, the second outdoor heat exchanger and the second outdoor fan so as to realize wind zone isolation.
10. An air conditioner comprising an indoor unit of the air conditioner and the outdoor unit of the air conditioner as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010273004.2A CN111578388B (en) | 2020-04-10 | 2020-04-10 | Air condensing units and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010273004.2A CN111578388B (en) | 2020-04-10 | 2020-04-10 | Air condensing units and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111578388A true CN111578388A (en) | 2020-08-25 |
| CN111578388B CN111578388B (en) | 2021-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010273004.2A Active CN111578388B (en) | 2020-04-10 | 2020-04-10 | Air condensing units and air conditioner |
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| Country | Link |
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| CN (1) | CN111578388B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023213187A1 (en) * | 2022-05-05 | 2023-11-09 | 青岛海尔空调电子有限公司 | Air conditioner outdoor unit, air conditioner, and control method for air conditioner |
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| JPH07103503A (en) * | 1993-10-04 | 1995-04-18 | Fujitsu General Ltd | Indoor machine of air-conditioner |
| CN106440067A (en) * | 2016-11-30 | 2017-02-22 | 广州华凌制冷设备有限公司 | High-temperature refrigeration air conditioner and high-temperature refrigeration control method |
| CN106642403A (en) * | 2017-02-23 | 2017-05-10 | 珠海格力电器股份有限公司 | Outdoor unit of air conditioner and air conditioning system |
| CN107366985A (en) * | 2017-08-17 | 2017-11-21 | 广东美的暖通设备有限公司 | Air-conditioner outdoor unit and there is its air conditioner |
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2020
- 2020-04-10 CN CN202010273004.2A patent/CN111578388B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07103503A (en) * | 1993-10-04 | 1995-04-18 | Fujitsu General Ltd | Indoor machine of air-conditioner |
| CN106440067A (en) * | 2016-11-30 | 2017-02-22 | 广州华凌制冷设备有限公司 | High-temperature refrigeration air conditioner and high-temperature refrigeration control method |
| CN106642403A (en) * | 2017-02-23 | 2017-05-10 | 珠海格力电器股份有限公司 | Outdoor unit of air conditioner and air conditioning system |
| CN107366985A (en) * | 2017-08-17 | 2017-11-21 | 广东美的暖通设备有限公司 | Air-conditioner outdoor unit and there is its air conditioner |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023213187A1 (en) * | 2022-05-05 | 2023-11-09 | 青岛海尔空调电子有限公司 | Air conditioner outdoor unit, air conditioner, and control method for air conditioner |
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| Publication number | Publication date |
|---|---|
| CN111578388B (en) | 2021-08-17 |
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