CN110762616A - Machine and air conditioner in air conditioning of reversible air supply - Google Patents

Machine and air conditioner in air conditioning of reversible air supply Download PDF

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Publication number
CN110762616A
CN110762616A CN201911085874.0A CN201911085874A CN110762616A CN 110762616 A CN110762616 A CN 110762616A CN 201911085874 A CN201911085874 A CN 201911085874A CN 110762616 A CN110762616 A CN 110762616A
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CN
China
Prior art keywords
air
shell
fan blade
axial flow
flow fan
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201911085874.0A
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Chinese (zh)
Inventor
董明珠
何博
吴俊鸿
黄鑫
梁博
李业强
李建建
李树云
肖洪力
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Application filed by Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to CN201911085874.0A priority Critical patent/CN110762616A/en
Publication of CN110762616A publication Critical patent/CN110762616A/en
Withdrawn legal-status Critical Current

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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
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
    • F24F1/0014—Indoor units, e.g. fan coil units characterised by air outlets having two or more outlet openings
    • 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
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
    • F24F1/0029—Axial fans
    • 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
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
    • F24F1/005—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted on the floor; standing on the floor
    • 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
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
    • 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
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0071—Indoor units, e.g. fan coil units with means for purifying supplied air
    • F24F1/0073—Indoor units, e.g. fan coil units with means for purifying supplied air characterised by the mounting or arrangement of filters
    • 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
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0087—Indoor units, e.g. fan coil units with humidification means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/65—Electronic processing for selecting an operating mode
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/79—Control 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
    • 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
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/081—Air-flow control members, e.g. louvres, grilles, flaps or guide plates for guiding air around a curve
    • 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
    • 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)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Thermal Sciences (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)

Abstract

The invention provides an air conditioner indoor unit capable of supplying air reversibly and an air conditioner, wherein the air conditioner indoor unit comprises: the air conditioner comprises a shell, a first air port, a second air port and a counter-rotating fan, wherein an internal air channel is formed inside the shell, one end of the internal air channel is communicated with the first air port, the other end of the internal air channel is communicated with the second air port, and the counter-rotating fan is arranged in the internal air channel; the cross section of the shell is of a polygonal structure, and the second air ports are formed in the lower portion of the shell and are formed in more than two side faces of the shell of the polygonal structure. The invention can realize refrigeration in summer to realize shower type upper air outlet, and heat in winter to realize carpet type lower air outlet, and can improve the air flow circulation area of the air inlet or the air outlet, reduce the flow nonuniformity of the air flow between the counter-rotating fan and the heat exchanger, and reduce the noise.

Description

Machine and air conditioner in air conditioning of reversible air supply
Technical Field
The invention belongs to the technical field of air conditioners, and particularly relates to an air conditioner indoor unit capable of supplying air reversibly and an air conditioner.
Background
Most of the existing air-conditioning cabinets are centrifugal cabinets or through-flow cabinets, the air supply mode is single, cold air and hot air are blown out from the same air opening, deflection of the air direction is carried out only by the aid of the air guide mechanism, the air outlet is far away from the ground or a roof, most of the hot air starts to float without reaching the ground in a heating mode, most of the cold air starts to sink without reaching the roof in a cooling mode, the temperature distribution of a room is uneven, the comfort of a user is poor, and the heat exchange time is long. And the air supply area (including air outlet area and air inlet area) of the indoor unit is small, so that large-area air inlet cannot be realized, and the heat exchange effect is low. And the flow nonuniformity of the air flow is caused between the fan and the heat exchanger due to unequal axial flow areas, so that the noise is higher.
Because the air conditioner in the prior art can not realize air outlet in the upper part of refrigeration in summer and air outlet in the lower part of heating in winter, large-area air inlet or outlet can be realized, and the heat exchange effect is improved; meanwhile, the technical problems of improving the flow uniformity of airflow, reducing noise and the like can be solved, so that the invention researches and designs the reversible air supply air conditioner indoor unit and the air conditioner.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defects that the air conditioner in the prior art can not realize refrigeration and upper air outlet in summer and heating and lower air outlet in winter, and can realize large-area air inlet or outlet and improve the uniformity of airflow flow, thereby providing the air conditioner indoor unit and the air conditioner with reversible air supply.
The invention provides an air-conditioning indoor unit capable of supplying air reversibly, which comprises:
the air conditioner comprises a shell, a first air port, a second air port and a counter-rotating fan, wherein an internal air channel is formed inside the shell, one end of the internal air channel is communicated with the first air port, the other end of the internal air channel is communicated with the second air port, and the counter-rotating fan is arranged in the internal air channel; the cross section of the shell is of a polygonal structure, and the second air ports are formed in the lower portion of the shell and are formed in more than two side faces of the shell of the polygonal structure.
Preferably, the first and second electrodes are formed of a metal,
the first air opening is arranged at the upper part of the shell, and the first air opening is arranged on more than two side surfaces of the shell with the polygonal structure; during refrigeration, the first air port is an air outlet, and the second air port is an air inlet; when heating, the first air port is an air inlet, and the second air port is an air outlet.
Preferably, the first and second electrodes are formed of a metal,
the cross section of the shell is of a pentagonal or hexagonal structure, the first air openings are formed in the upper parts of five side surfaces or six side surfaces of the shell, or the first air openings are formed in the upper parts of two opposite side surfaces of the shell; and/or the lower parts of five side surfaces or six side surfaces of the shell are provided with the second air openings or the lower parts of two opposite side surfaces of the shell are provided with the second air openings.
Preferably, the first and second electrodes are formed of a metal,
when the cross section of the shell is pentagonal, one side of the shell is a short side, the length of the short side is smaller than the side lengths of all other sides, and the surface where the short side is located is a front panel; when the cross section of the shell is hexagonal, two sides are short sides and are symmetrical, the length of each short side is smaller than that of all other sides, and the surfaces where the short sides are located are a front panel and a rear back panel respectively.
Preferably, the first and second electrodes are formed of a metal,
the contra-rotating fan comprises a first axial flow fan blade and a second axial flow fan blade, the first axial flow fan blade and the second axial flow fan blade are adjacently arranged along the axial direction, and the rotating directions of the first axial flow fan blade and the second axial flow fan blade are opposite; during refrigeration, the first axial flow fan blade rotates towards a first direction, and the second axial flow fan blade rotates towards a second direction, so that airflow is blown to the first air opening from the second air opening; when heating, the first axial flow fan blade rotates towards a second direction, and the second axial flow fan blade rotates towards a first direction, so that air flow is blown to the second air port from the first air port, wherein the first direction is opposite to the second direction.
Preferably, the first and second electrodes are formed of a metal,
the minimum distance between the second axial flow fan blade and the heat exchanger is 120-540 mm; and/or the fan further comprises a first motor and a second motor, wherein the first motor is electrically connected with the first axial flow fan blade to drive the first axial flow fan blade to rotate, and the second motor is electrically connected with the second axial flow fan blade to drive the second axial flow fan blade to rotate.
Preferably, the first and second electrodes are formed of a metal,
the blade numbers of the first axial flow fan blade and the second axial flow fan blade are prime numbers mutually.
Preferably, the first and second electrodes are formed of a metal,
the casing is inside still to be provided with the heat exchanger, just the heat exchanger with still be provided with the water conservancy diversion part between the counter-rotating fan, the axial one end of water conservancy diversion part extend to with the wind channel mouth of heat exchanger meets, the axial other end of water conservancy diversion part extend to with the position that the wind channel axial section width equals of counter-rotating fan.
Preferably, the first and second electrodes are formed of a metal,
the flow guide part is a flow guide ring, the inner surface of the flow guide part is a rotating curved surface which is symmetrical around the axis of the counter-rotating fan, and the profile line of the rotating curved surface along the axial direction is a single circular arc or a plurality of circular arcs.
Preferably, the first and second electrodes are formed of a metal,
the first air opening is positioned at the top end of the internal air duct, and the second air opening is positioned at the lower part of the internal air duct; during refrigeration, the first air port is an air outlet, and the second air port is an air inlet; when heating, the first air port is an air inlet, and the second air port is an air outlet.
Preferably, the first and second electrodes are formed of a metal,
a flow guide top cover is arranged at the position of the first air port, the lower surface of the flow guide top cover is a conical surface, and the flow guide top cover can be lifted to open the first air port and can also be lowered to close the first air port; or the air guide top cover does not move, the air-conditioning indoor unit further comprises an air guide mechanism arranged at the first air opening, and the air guide mechanism or the shell can move to open or close the first air opening; and/or an electrical box I and an electrical box II are arranged inside the bottom of the shell, and the bottom of the shell is also provided with a base in a connected mode.
The invention also provides an air conditioner which comprises the air conditioner indoor unit capable of realizing reversible air supply.
The air conditioner indoor unit and the air conditioner with reversible air supply provided by the invention have the following beneficial effects:
1. according to the invention, through the structural form of arranging the counter-rotating fan in the internal air duct of the indoor unit of the air conditioner and the arrangement of the first air port and the second air port, the air can be discharged from the air port at the upper part by the counter-rotating fan during refrigeration in summer, and can be discharged from the air port at the lower part by the counter-rotating fan during refrigeration in winter, and through the polygonal shell and the structural form of arranging the second air ports on two or more side surfaces of the polygonal shell, the opening area of the second air port can be effectively increased, the air flow circulation area of the air inlet or the air outlet from the lower part of the shell is effectively increased, the heat exchange effect is effectively improved, the indoor refrigeration or heating comfort is improved, and through the structural form of arranging the heat exchanger in the internal air duct and arranging the flow guide part between the heat exchanger and the counter-rotating fan, the air flow from the counter-rotating fan can be completely, Or the airflow from the heat exchanger can be completely and uniformly guided to the counter-rotating fan through the guide part, so that uniform guide of upper air outlet and lower air outlet can be realized, the fluid is uniformly diffused or contracted, the flow nonuniformity of the airflow between the counter-rotating fan and the heat exchanger is reduced, a good fluid guiding or guiding effect is provided for the counter-rotating axial flow fan and the heat exchanger, the air volume of the whole machine is improved, and the noise is reduced; the purpose of improving the indoor heat exchange effect can be achieved in summer or winter, the shower type upper air outlet is achieved through cooling in summer, the carpet type lower air outlet is achieved through heating in winter, the functions are achieved, and the comfort level of the indoor human body is greatly improved.
2. The counter-rotating axial flow fan blades are adopted to effectively increase wind pressure, improve wind volume and realize remote wind supply; the conical flow guide top cover is positioned at the top of the air conditioner and consists of a cylinder and a cone, the cylinder structure and the shell form a seal, and the cone structure is used for guiding airflow to flow in or out from the upper air inlet.
Drawings
Fig. 1 is a schematic view of the overall external three-dimensional structure of the reversible blowing air-conditioning indoor unit of the present invention;
FIG. 2 is a schematic view of the front internal structure of the reversible blowing indoor unit of the air conditioner of the present invention;
FIG. 3 is a schematic cross-sectional view of the heat exchanger portion of the reversible-blowing indoor unit of the air conditioner of the present invention;
FIG. 4 is a schematic perspective view of a flow guide member of the indoor unit of a reversible air supply air conditioner according to the present invention;
FIG. 5 is a schematic view of the principle structure of the reversible blowing air conditioner indoor unit of the present invention during cooling;
fig. 6 is a schematic view of the principle structure of the reversible blowing air conditioner indoor unit in heating according to the present invention.
The reference numbers in the figures denote:
1. an air conditioner; 1a is a front panel; 1c and 1d are side panels; 2. a housing; 3. an internal air duct; 4. a counter-rotating fan; 4a, a first axial flow fan blade (or called as a first axial flow fan blade); 4b, a second axial flow fan blade (or called axial flow fan blade II); 4c, a first motor (or called as motor I); 4d, a second motor (or called motor two); 5. A heat exchanger; 6. a flow guide member; 10a, an electrical box I; 10b, an electrical box II; 21. a first tuyere; 21a, enabling the upper air inlet to pass through a filter screen assembly; 22. a second tuyere; 22a and a lower air inlet I; 22b and a lower air inlet II; 22c, a filter screen component at the lower air inlet; 22d, a second filter screen component at the lower air inlet; 23. a flow guide top cover; 24. a base.
Detailed Description
As shown in fig. 1 to 6, the present invention provides an indoor unit of an air conditioner capable of reversible blowing, comprising:
the air conditioner comprises a shell 2, a first air port 21, a second air port 22 and a counter-rotating fan 4, wherein an internal air channel 3 is formed inside the shell 2, one end of the internal air channel 3 is communicated with the first air port 21, the other end of the internal air channel 3 is communicated with the second air port 22, and the counter-rotating fan 4 is arranged in the internal air channel 3; the cross section of the casing is of a polygonal structure, and the second air ports 22 are arranged at the lower part of the casing 2 and are arranged on more than two sides of the casing of the polygonal structure.
According to the invention, through the structural form of the counter-rotating fan arranged in the internal air duct of the indoor unit of the air conditioner and the arrangement of the first air port and the second air port, the air can be discharged from the air port positioned at the upper part by the counter-rotating fan during refrigeration in summer, and can be discharged from the air port positioned at the lower part by the counter-rotating fan during refrigeration in winter, and through the polygonal shell and the structural form that the second air ports are arranged on two or more side surfaces of the polygonal shell, the opening area of the second air port can be effectively increased, the air flow circulation area of the air inlet or the air outlet from the lower part of the shell is effectively increased, so that the heat exchange effect is effectively improved, and the indoor refrigeration or heating; the purpose of improving the indoor heat exchange effect can be achieved in summer or winter, the shower type upper air outlet is achieved through cooling in summer, the carpet type lower air outlet is achieved through heating in winter, the functions are achieved, and the comfort level of the indoor human body is greatly improved.
Preferably, the first and second electrodes are formed of a metal,
the first air port 21 is arranged at the upper part of the shell 2, and the first air port 21 is arranged on more than two side surfaces of the shell with a polygonal structure; during refrigeration, the first air port 21 is an air outlet, and the second air port 22 is an air inlet; when heating, the first air port 21 is an air inlet, and the second air port 22 is an air outlet. The first air opening is arranged at the top end of the internal air duct and can be used for air outlet during refrigeration, so that refrigeration shower type air supply is formed, the indoor refrigeration air supply area is increased, and the refrigeration comfort level is improved; the air is exhausted through the second air port positioned at the lower part during heating, so that heating carpet type air supply can be formed, the indoor heating air supply area is increased, and the heating comfort level is improved; and through polygonal casing and all set up the structural style in first wind gap on polygonal casing more than two sides, can increase the area of seting up of first wind gap effectively, effectively improve the air current flow area from casing upper portion air inlet or air-out to promote heat transfer effect effectively, promote indoor refrigeration or heat the comfort level.
Preferably, the first and second electrodes are formed of a metal,
the cross section of the shell is of a pentagonal or hexagonal structure, the first air ports 21 are arranged on five side surfaces or six side surfaces of the shell, or the first air ports 21 are arranged on the upper parts of two opposite side surfaces of the shell; and/or the second tuyere 22 is arranged at the lower part of five side surfaces or six side surfaces of the shell or the second tuyere 22 is arranged at the lower parts of two opposite side surfaces of the shell. The shell is in a further preferable structure form, and the area of air outlet or air inlet at the upper part can be increased by arranging five or six side surfaces at the upper part or arranging first air ports at two opposite side surfaces, so that the heat exchange effect is improved; and the second air ports which are arranged on the five or six side surfaces of the lower part or on the two opposite side surfaces can improve the air outlet or inlet area of the lower part, thereby improving the heat exchange effect.
Preferably, the first and second electrodes are formed of a metal,
when the cross section of the shell is pentagonal, one side of the shell is a short side, the length of the short side is smaller than the side lengths of all other sides, and the surface where the short side is located is a front panel; when the cross section of the shell is hexagonal, two sides are short sides and are symmetrical, the length of each short side is smaller than that of all other sides, and the surfaces where the short sides are located are a front panel and a rear back panel respectively. This is a preferable configuration of the housing of the present invention, and the appearance structure thereof can be effectively formed to form the front panel.
Preferably, the first and second electrodes are formed of a metal,
the counter-rotating fan 4 comprises a first axial flow fan blade 4a and a second axial flow fan blade 4b, the first axial flow fan blade 4a and the second axial flow fan blade 4b are adjacently arranged along the axial direction, and the rotating directions of the first axial flow fan blade 4a and the second axial flow fan blade 4b are opposite; during refrigeration, the first axial flow fan blade 4a rotates towards a first direction, and the second axial flow fan blade 4b rotates towards a second direction, so that airflow is blown to the first air opening 21 from the second air opening 22; during heating, the first axial fan blade 4a rotates in a second direction, and the second axial fan blade 4b rotates in a first direction, so that an air flow is blown from the first air opening 21 to the second air opening 22, wherein the first direction is opposite to the second direction. The counter-rotating fan is in the preferred structure, the two fans with different rotating directions are arranged up and down, the rotating directions are opposite, the effect of air outlet in the same direction is achieved, the air outlet capacity is improved, the air outlet is upward for air outlet during refrigeration, and the air outlet is downward for air outlet during heating.
① when the cooling mode is turned on, the indoor air enters from the lower part under the action of the fan, and then passes through the heat exchanger, and goes out from the upper air outlet, so as to realize cooling waterfall type air supply. ② only opens the fan system, turns off the air-conditioning compressor, the indoor air enters from the lower part, passes through the moisture absorption device, and then goes out from the upper part, so as to realize cooling and humidifying of the indoor air, and achieve the effect of energy saving. ③ when the air-conditioning is turned on in the heating mode, the fan is turned over, the indoor air enters from the upper part under the action of the fan, passes through the heat exchanger for heat exchange, then passes through the moisture absorption device (wet film) to complete humidifying, and then goes out from the lower air outlet, so as to realize blanket type air supply during air-conditioning heating, and simultaneously, the relative.
Preferably, the first and second electrodes are formed of a metal,
the minimum distance between the second axial flow fan blade 4b and the heat exchanger 5 is 120-540 mm; and/or the fan further comprises a first motor 4c and a second motor 4d, wherein the first motor 4c is electrically connected with the first axial flow fan blade 4a to drive the first axial flow fan blade 4a to rotate, and the second motor 4d is electrically connected with the second axial flow fan blade 4b to drive the second axial flow fan blade 4b to rotate. The minimum distance between the axial flow fan blade and the heat exchanger can be controlled by setting the minimum distance between the axial flow fan blade and the heat exchanger, the uniformity of airflow is improved, the wind resistance of airflow flowing is reduced, the air supply quantity is increased, the outlet wind speed which can be generated under the condition of the same rotating speed can be maximized, and the heat exchange effect is effectively improved; the device comprises at least two axial flow fans, a first motor, a second motor, a first axial flow fan blade, a second motor and a fan, wherein the at least two axial flow fans are installed in a mirror image mode and are arranged in an air duct up and down, the first motor and the second motor are respectively connected with the first axial flow fan blade and the second axial flow fan blade and are used for providing power and controlling the rotating directions and the rotating speeds of the first axial flow fan blade and the second axial.
Preferably, the first and second electrodes are formed of a metal,
the first axial flow fan blade 4a and the second axial flow fan blade 4b are prime numbers. Further preferably, the number of the blades of the first axial flow fan blade 4a is 4, and the number of the blades of the second axial flow fan blade 4b is 5. The reciprocal prime numbers can generate better flow, avoid resonance and further play a role in improving the air quantity and the air supply distance.
Preferably, the first and second electrodes are formed of a metal,
a heat exchanger 5 is further arranged in the shell 2, and a flow guide component 6 is further arranged between the heat exchanger 5 and the counter-rotating fan 4; one axial end of the flow guide component 6 extends to a position connected with an air duct opening of the heat exchanger 5, and the other axial end of the flow guide component 6 extends to a position equal to the width of an axial section of the air duct of the counter-rotating fan 4. The heat exchanger is arranged in the internal air duct, and the flow guide part is arranged between the heat exchanger and the counter-rotating fan, so that the airflow from the counter-rotating fan can be completely and uniformly guided to the heat exchanger through the flow guide part, or the airflow from the heat exchanger can be completely and uniformly guided to the counter-rotating fan through the flow guide part, the uniform flow guide of the upper air outlet and the lower air outlet can be realized, the uniform diffusion or contraction of fluid is realized, the flow nonuniformity of the airflow between the counter-rotating fan and the heat exchanger is reduced, a good fluid guiding-in or guiding-out effect is provided for the counter-rotating fan and the heat exchanger, the air volume of the whole machine is improved, and the noise is reduced; can make the air current through the heat exchanger can be more completely by the water conservancy diversion to the cyclone and blown off, perhaps make the air current through the cyclone can be more completely by the water conservancy diversion to heat exchanger department and blown off to further effectively improve and carry out even diffusion or contraction action to the convection cell, further reduce the air current in the flow inhomogeneity between cyclone and heat exchanger, further promote the complete machine amount of wind, noise abatement.
Preferably, the first and second electrodes are formed of a metal,
the flow guide part 6 is a flow guide ring, the inner surface of the flow guide part is a rotating curved surface which is symmetrical around the axis of the counter-rotating fan, and the profile molded line of the rotating curved surface along the axial direction is a single arc or a plurality of arc lines, preferably a single arc line. The flow guide component is an optimal structure form of the flow guide component, the flow guide component is set to be a rotating curved surface which is symmetrical around the axis of the counter-rotating fan, airflow can be guided and guided through the rotating curved surface, the heat exchanger and the counter-rotating axial flow fan are arranged in the same air duct generally, so that the axial flow areas of the heat exchanger and the counter-rotating axial flow fan are unequal, the combination of the flow guide component and the counter-rotating axial flow fan can realize the uniform flow guide of upper air outlet and lower air outlet, the fluid is uniformly diffused or contracted, the flow nonuniformity of the airflow between the counter-rotating axial flow fan and the heat exchanger is reduced, a good fluid leading-in or leading-out effect is provided for the counter-rotating axial flow.
Preferably, the first and second electrodes are formed of a metal,
a flow guide top cover 23 is arranged at the position of the first air port 21, the lower surface of the flow guide top cover 23 is a conical surface, and the flow guide top cover 23 can be lifted to open the first air port 21 and can also be lowered to close the first air port 21; or the air guide top cover does not move, the air-conditioning indoor unit further comprises an air guide mechanism arranged at the first air opening, and the air guide mechanism or the shell can move to open or close the first air opening; and/or a first electrical box 10a and a second electrical box 10b are arranged inside the bottom of the shell 2, and a base 24 is arranged at the bottom of the shell 2 in a connected manner. Can open the effect of closing through the water conservancy diversion top cap to last wind gap to can play the effect of water conservancy diversion through the toper surface, make the air current towards dispersion air-out all around, realize the increase of air current air-out area, improve indoor comfort level. The conical flow guide top cover structure can play a role in flow guiding and rectifying, so that airflow can flow in or out from the first air opening more easily. The electrical box is used for controlling the running state of the air conditioner and controlling the first motor, the second rotating direction and the rotating speed, and the base 24 is the same as the shell 2 in shape and used for sealing and stabilizing the gravity center of the air conditioner.
The invention also provides an air conditioner which comprises the air conditioner indoor unit capable of realizing reversible air supply.
The first implementation mode comprises the following steps:
in fig. 1, the air conditioner indoor unit or air conditioner 1, a front panel 1a, side panels 1c and 1d, and a casing 2, the radial section of which is pentagonal; a first air inlet 21 or a weighing air inlet 21 is arranged at the upper end of the shell, and the air inlet 21 is positioned on the front panel and two adjacent side surfaces of the front panel; 21a is an upper air inlet filter screen component which is positioned at the upper air inlet; the lower end of the shell is provided with lower air ports 22a and 22b, and the lower air ports 22a and 22b are positioned on two adjacent side surfaces of the front panel; 22c and 22d are respectively a first lower air inlet and a second lower air inlet filter screen assembly which are arranged at the lower air inlet; and 24 is a shell base. In FIG. 2, 23 is a top cover for guiding flow, which includes a flow guiding member; the fan assembly comprises a fan assembly, motors 4c and 4d, wherein the motors 4a and 4b are respectively an axial flow fan blade I (or called a first axial flow fan blade) and an axial flow fan blade II (or called a second axial flow fan blade), and are respectively driven by the motors 4c and 4d of the fan assembly, wherein the axial lines of the axial flow fan blade I4 a and the axial flow fan blade II 4b are the same, the air supply directions are the same, the rotation directions are opposite, and the number of the; l2 is the minimum distance between the axial flow fan blade and the heat exchanger, and the value is 340 mm; 3 is an internal air duct; and 5, a heat exchanger, as shown in fig. 3, is positioned between the second axial flow fan blade 4b and the lower air ports 22a and 22b, and L1 is the minimum distance between the outer surface of the heat exchanger and the inner wall surface of the shell. In fig. 4, 6 is a flow guide component, which is located between the second axial-flow fan blade 4b and the heat exchanger 5, and the inner surface of the flow guide component is a rotating surface with an arc line around the axis.
In the refrigeration mode, as shown in fig. 5, the electrical box controls the rotation directions of the motors 4c and 4d, so that the first axial flow fan blade 4a and the second axial flow fan blade 4b both supply air to the upper air inlet 21, air flow is sucked from the lower air inlets 22a and 22b, heat is exchanged through the heat exchanger 5, the temperature is reduced, the air flow is blown out from the upper air inlet 21, the filter screen assemblies 22c and 22d work, and the filter screen assembly 21a works or is recycled, so that the room temperature is reduced, and the rapid refrigeration effect is achieved; in the heating mode, as shown in fig. 6, the electrical box controls the rotation directions of the motors 4c and 4d, so that the first axial flow fan blade 4a and the second axial flow fan blade 4b both supply air to the lower air ports 22a and 22b, the air flow is sucked from the upper air port 21, heat is exchanged through the heat exchanger 5, the temperature is raised, the air flow is blown out from the lower air ports 22a and 22b, the filter screen assemblies 22c and 22d work or are recovered, and the filter screen assembly 21a works, so that the room temperature is raised, a quick heating effect is achieved, the room temperature is uniformly distributed, and the comfort of a user is good; when the air supply mode is used, a user can select the upper air outlet 21 or the lower air outlets 22a and 22b to output air by himself.
Operating conditions Speed of rotation/rpm Air volume/(m)3/h)
Refrigeration working condition 1400 1267
Heating condition 1400 1150
The second embodiment:
in fig. 1, the air conditioner indoor unit or air conditioner 1, a front panel 1a, side panels 1c and 1d, and a casing 2, the radial section of which is pentagonal; a first air inlet 21 or a weighing air inlet 21 is arranged at the upper end of the shell, and the air inlet 21 is positioned on the front panel and two adjacent side surfaces of the front panel; 21a is an upper air inlet filter screen component which is positioned at the upper air inlet; the lower end of the shell is provided with lower air ports 22a and 22b, and the lower air ports 22a and 22b are positioned on two adjacent side surfaces of the front panel; 22c and 22d are respectively a first lower air inlet and a second lower air inlet filter screen assembly which are arranged at the lower air inlet; and 24 is a shell base. In FIG. 2, 23 is a top cover for guiding flow, which includes a flow guiding member; the fan assembly comprises a fan assembly, motors 4c and 4d, wherein the motors 4a and 4b are respectively an axial flow fan blade I (or called a first axial flow fan blade) and an axial flow fan blade II (or called a second axial flow fan blade), and are respectively driven by the motors 4c and 4d of the fan assembly, wherein the axial lines of the axial flow fan blade I4 a and the axial flow fan blade II 4b are the same, the air supply directions are the same, the rotation directions are opposite, and the number of the; l2 is the minimum distance between the axial flow fan blade and the heat exchanger, and the value is 120 mm; 3 is an internal air duct; and 5, a heat exchanger, as shown in fig. 3, is positioned between the second axial flow fan blade 4b and the lower air ports 22a and 22b, and L1 is the minimum distance between the outer surface of the heat exchanger and the inner wall surface of the shell. In fig. 4, 6 is a flow guide component, which is located between the second axial-flow fan blade 4b and the heat exchanger 5, and the inner surface of the flow guide component is a rotating surface with an arc line around the axis.
In the refrigeration mode, as shown in fig. 5, the electrical box controls the rotation directions of the motors 4c and 4d, so that the first axial flow fan blade 4a and the second axial flow fan blade 4b both supply air to the upper air inlet 21, air flow is sucked from the lower air inlets 22a and 22b, heat is exchanged through the heat exchanger 5, the temperature is reduced, the air flow is blown out from the upper air inlet 21, the filter screen assemblies 22c and 22d work, and the filter screen assembly 21a works or is recycled, so that the room temperature is reduced, and the rapid refrigeration effect is achieved; in the heating mode, as shown in fig. 6, the electrical box controls the rotation directions of the motors 4c and 4d, so that the first axial flow fan blade 4a and the second axial flow fan blade 4b both supply air to the lower air ports 22a and 22b, the air flow is sucked from the upper air port 21, heat is exchanged through the heat exchanger 5, the temperature is raised, the air flow is blown out from the lower air ports 22a and 22b, the filter screen assemblies 22c and 22d work or are recovered, and the filter screen assembly 21a works, so that the room temperature is raised, a quick heating effect is achieved, the room temperature is uniformly distributed, and the comfort of a user is good; when the air supply mode is used, a user can select the upper air outlet 21 or the lower air outlets 22a and 22b to output air by himself.
Operating conditions Speed of rotation/rpm Air volume/(m)3/h)
Refrigeration working condition 1400 1221
Heating condition 1400 1101
The third embodiment is as follows:
in fig. 1, the air conditioner indoor unit or air conditioner 1, a front panel 1a, side panels 1c and 1d, and a casing 2, the radial section of which is pentagonal; a first air inlet 21 or a weighing air inlet 21 is arranged at the upper end of the shell, and the air inlet 21 is positioned on the front panel and two adjacent side surfaces of the front panel; 21a is an upper air inlet filter screen component which is positioned at the upper air inlet; the lower end of the shell is provided with lower air ports 22a and 22b, and the lower air ports 22a and 22b are positioned on two adjacent side surfaces of the front panel; 22c and 22d are respectively a first lower air inlet and a second lower air inlet filter screen assembly which are arranged at the lower air inlet; and 24 is a shell base. In FIG. 2, 23 is a top cover for guiding flow, which includes a flow guiding member; the fan assembly comprises a fan assembly, motors 4c and 4d, wherein the motors 4a and 4b are respectively an axial flow fan blade I (or called a first axial flow fan blade) and an axial flow fan blade II (or called a second axial flow fan blade), and are respectively driven by the motors 4c and 4d of the fan assembly, wherein the axial lines of the axial flow fan blade I4 a and the axial flow fan blade II 4b are the same, the air supply directions are the same, the rotation directions are opposite, and the number of the; l2 is the minimum distance between the axial flow fan blade and the heat exchanger, and the value is 540 mm; 3 is an internal air duct; and 5, a heat exchanger, as shown in fig. 3, is positioned between the second axial flow fan blade 4b and the lower air ports 22a and 22b, and L1 is the minimum distance between the outer surface of the heat exchanger and the inner wall surface of the shell. In fig. 4, 6 is a flow guide component, which is located between the second axial-flow fan blade 4b and the heat exchanger 5, and the inner surface of the flow guide component is a rotating surface with an arc line around the axis.
In the refrigeration mode, as shown in fig. 5, the electrical box controls the rotation directions of the motors 4c and 4d, so that the first axial flow fan blade 4a and the second axial flow fan blade 4b both supply air to the upper air inlet 21, air flow is sucked from the lower air inlets 22a and 22b, heat is exchanged through the heat exchanger 5, the temperature is reduced, the air flow is blown out from the upper air inlet 21, the filter screen assemblies 22c and 22d work, and the filter screen assembly 21a works or is recycled, so that the room temperature is reduced, and the rapid refrigeration effect is achieved; in the heating mode, as shown in fig. 6, the electrical box controls the rotation directions of the motors 4c and 4d, so that the first axial flow fan blade 4a and the second axial flow fan blade 4b both supply air to the lower air ports 22a and 22b, the air flow is sucked from the upper air port 21, heat is exchanged through the heat exchanger 5, the temperature is raised, the air flow is blown out from the lower air ports 22a and 22b, the filter screen assemblies 22c and 22d work or are recovered, and the filter screen assembly 21a works, so that the room temperature is raised, a quick heating effect is achieved, the room temperature is uniformly distributed, and the comfort of a user is good; when the air supply mode is used, a user can select the upper air outlet 21 or the lower air outlets 22a and 22b to output air by himself.
The following table respectively shows the air volume data of the refrigeration and heating operation conditions of the embodiment:
operating conditions Speed of rotation/rpm Air volume/(m)3/h)
Refrigeration working condition 1400 1292
Heating condition 1400 1256
In the invention, the air conditioner has multiple air supply modes to meet different requirements of room refrigeration, heating and air supply modes, cold air and hot air are sent out from different height positions by controlling the air supply direction of the counter-rotating axial flow fan, the heat exchange of the room is accelerated, the temperature distribution of the room is more uniform, and the comfort of users is improved. The protection range of the invention includes but is not limited to the shape and angle parameters of the flow guide component, the combination mode of the flow guide component, the heat exchanger and the counter-rotating axial flow fan, and the like.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention. The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (11)

1. The utility model provides a machine in reversible air conditioning which characterized in that: the method comprises the following steps:
the air conditioner comprises a shell (2), a first air port (21), a second air port (22) and a counter-rotating fan (4), wherein an internal air channel (3) is formed inside the shell (2), one end of the internal air channel (3) is communicated with the first air port (21), the other end of the internal air channel is communicated with the second air port (22), and the counter-rotating fan (4) is arranged in the internal air channel (3); the cross section of the shell is of a polygonal structure, and the second air ports (22) are arranged at the lower part of the shell (2) and are arranged on more than two sides of the shell of the polygonal structure.
2. An indoor unit of an air conditioner with reversible blowing according to claim 1, characterized in that:
the first air opening (21) is arranged at the upper part of the shell (2), and the first air opening (21) is arranged on more than two side surfaces of the shell with a polygonal structure; during refrigeration, the first air port (21) is an air outlet, and the second air port (22) is an air inlet; when heating, the first air opening (21) is an air inlet, and the second air opening (22) is an air outlet.
3. An indoor unit of an air conditioner with reversible blowing according to claim 2, characterized in that:
the cross section of the shell is of a pentagonal or hexagonal structure, the first air ports (21) are arranged on the upper parts of five side surfaces or six side surfaces of the shell, or the first air ports (21) are arranged on the upper parts of two opposite side surfaces of the shell; and/or the lower parts of five sides or six sides of the shell are provided with the second air ports (22) or the lower parts of two opposite sides of the shell are provided with the second air ports (22).
4. An indoor unit of an air conditioner with reversible blowing according to claim 3, characterized in that:
when the cross section of the shell is pentagonal, one side of the shell is a short side, the length of the short side is smaller than the side lengths of all other sides, and the surface where the short side is located is a front panel; when the cross section of the shell is hexagonal, two sides are short sides and are symmetrical, the length of each short side is smaller than that of all other sides, and the surfaces where the short sides are located are a front panel and a rear back panel respectively.
5. An indoor unit of an air conditioner with reversible blowing according to claim 2, characterized in that:
the contra-rotating fan (4) comprises a first axial flow fan blade (4a) and a second axial flow fan blade (4b), the first axial flow fan blade (4a) and the second axial flow fan blade (4b) are adjacently arranged along the axial direction, and the rotating directions of the first axial flow fan blade (4a) and the second axial flow fan blade (4b) are opposite; during refrigeration, the first axial flow fan blade (4a) rotates towards a first direction, and the second axial flow fan blade (4b) rotates towards a second direction, so that air flow is blown to the first air opening (21) from the second air opening (22); during heating, the first axial flow fan blade (4a) rotates towards a second direction, and the second axial flow fan blade (4b) rotates towards a first direction, so that air flow is blown to the second air opening (22) from the first air opening (21), wherein the first direction is opposite to the second direction.
6. An indoor unit of an air conditioner with reversible blowing according to claim 5, characterized in that:
the minimum distance between the second axial flow fan blade (4b) and the heat exchanger (5) ranges from 120mm to 540 mm; and/or the second fan also comprises a first motor (4c) and a second motor (4d), wherein the first motor (4c) is electrically connected with the first axial flow fan blade (4a) to drive the first axial flow fan blade (4a) to rotate, and the second motor (4d) is electrically connected with the second axial flow fan blade (4b) to drive the second axial flow fan blade (4b) to rotate.
7. An indoor unit of an air conditioner with reversible blowing according to any one of claims 5 to 6, characterized in that:
the blade numbers of the first axial flow fan blade (4a) and the second axial flow fan blade (4b) are prime numbers.
8. An indoor unit of an air conditioner with reversible blowing according to any one of claims 1 to 7, characterized in that:
the casing (2) inside still is provided with heat exchanger (5), and heat exchanger (5) with still be provided with water conservancy diversion part (6) between to cyclone (4), the axial one end of water conservancy diversion part (6) extend to with the wind channel mouth of heat exchanger (5) meets, the axial other end of water conservancy diversion part (6) extend to with the position that the wind channel axial section width of to cyclone (4) equals.
9. An indoor unit of an air conditioner with reversible blowing according to claim 8, characterized in that:
the flow guide component (6) is of a flow guide ring structure, the inner surface of the flow guide component is a rotating curved surface which is symmetrical around the axis of the counter-rotating fan, and the profile molded line of the rotating curved surface along the axial direction is a single arc molded line or a multi-arc molded line.
10. An indoor unit of an air conditioner with reversible blowing according to any one of claims 1 to 9, characterized in that:
the position of first wind gap (21) is provided with water conservancy diversion top cap (23), the lower surface of water conservancy diversion top cap (23) is the toper surface: the deflector cap (23) can be raised to open the first tuyere (21) and also lowered to close the first tuyere (21); or the air guide top cover does not move, the air-conditioning indoor unit further comprises an air guide mechanism arranged at the first air opening, and the air guide mechanism or the shell can move to open or close the first air opening; and/or a first electrical box (10a) and a second electrical box (10b) are arranged inside the bottom of the shell (2), and a base (24) is also arranged at the bottom of the shell (2) in a connection mode.
11. An air conditioner, characterized in that: an indoor unit of an air conditioner including the reversible blowing of any one of claims 1 to 10.
CN201911085874.0A 2019-11-08 2019-11-08 Machine and air conditioner in air conditioning of reversible air supply Withdrawn CN110762616A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911085874.0A CN110762616A (en) 2019-11-08 2019-11-08 Machine and air conditioner in air conditioning of reversible air supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911085874.0A CN110762616A (en) 2019-11-08 2019-11-08 Machine and air conditioner in air conditioning of reversible air supply

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CN110762616A true CN110762616A (en) 2020-02-07

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Country Link
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111578499A (en) * 2020-05-19 2020-08-25 珠海格力电器股份有限公司 Air duct machine and turbulent flow device thereof
CN111795489A (en) * 2020-06-08 2020-10-20 珠海格力电器股份有限公司 Induction coils and air conditioning cabinets
CN112460686A (en) * 2020-11-23 2021-03-09 珠海格力电器股份有限公司 Wall-mounted corner type air conditioner
CN112594780A (en) * 2020-11-17 2021-04-02 珠海格力电器股份有限公司 Corner hanging type air conditioner
CN114576723A (en) * 2022-03-11 2022-06-03 Tcl空调器(中山)有限公司 Fresh air assembly and fresh air conditioner

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111578499A (en) * 2020-05-19 2020-08-25 珠海格力电器股份有限公司 Air duct machine and turbulent flow device thereof
CN111578499B (en) * 2020-05-19 2021-10-26 珠海格力电器股份有限公司 Air duct machine and turbulent flow device thereof
CN111795489A (en) * 2020-06-08 2020-10-20 珠海格力电器股份有限公司 Induction coils and air conditioning cabinets
CN111795489B (en) * 2020-06-08 2025-05-02 珠海格力电器股份有限公司 Guide ring and air conditioning cabinet
CN112594780A (en) * 2020-11-17 2021-04-02 珠海格力电器股份有限公司 Corner hanging type air conditioner
CN112460686A (en) * 2020-11-23 2021-03-09 珠海格力电器股份有限公司 Wall-mounted corner type air conditioner
CN114576723A (en) * 2022-03-11 2022-06-03 Tcl空调器(中山)有限公司 Fresh air assembly and fresh air conditioner
CN114576723B (en) * 2022-03-11 2023-02-17 Tcl空调器(中山)有限公司 Fresh air assembly and fresh air conditioner

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