CN110762634A - Air conditioner indoor unit, air conditioner and control method - Google Patents
Air conditioner indoor unit, air conditioner and control method Download PDFInfo
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- CN110762634A CN110762634A CN201911086167.3A CN201911086167A CN110762634A CN 110762634 A CN110762634 A CN 110762634A CN 201911086167 A CN201911086167 A CN 201911086167A CN 110762634 A CN110762634 A CN 110762634A
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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
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
- F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the 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
- 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
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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
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
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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
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/247—Active noise-suppression
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- Combustion & Propulsion (AREA)
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- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
Abstract
The invention provides an air conditioner indoor unit, an air conditioner and a control method, wherein the air conditioner indoor unit comprises: the air conditioner comprises a shell, a first air port, a second air port and a fan component, 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 fan component is arranged in the internal air channel; the fan is characterized in that a heat exchanger is further arranged inside the shell, and a middle air port is further formed in the position, between the heat exchanger and the fan component, on the shell. By the air conditioner indoor unit, most of air flow can be sucked from the middle air port under the air supply mode, so that the air flow loss is effectively reduced, the air supply effect with large air volume can be realized, the air supply distance is long, and the user comfort is improved; and in the refrigeration mode, air flow is simultaneously sucked from the lower air inlet and the middle air inlet, so that cold air and hot air are mixed and blown out, discomfort of people directly blowing cold air can be reduced, and comfort is improved.
Description
Technical Field
The invention belongs to the technical field of air conditioners, and particularly relates to an air conditioner indoor unit, an air conditioner and a control method.
Background
The existing indoor cabinet machine generally has several modes of refrigeration, heating, air supply and the like, wherein only the air supply mode does not need heat exchange, and an outdoor unit is not started. In the air supply mode, air still passes through the heat exchanger but does not exchange heat, and is blown out from the air port, so that air flow generates large loss when passing through the heat exchanger, the air supply quantity is reduced, the large circulation of the air flow in a room is weakened, the air supply distance is short, and the user comfort is poor; in the cooling mode, in order to rapidly cool the room, the temperature near the air outlet of the air conditioner is much lower than the set temperature, and when a user is close to the direct blowing mode, the comfort is poor, and even the user catches a cold.
Because the air still needs to pass through the heat exchanger when the air conditioner in the prior art has an air supply mode, the air conditioner causes larger loss of airflow, reduces the air quantity, has short air supply distance and poor user comfort; the temperature near the air outlet of the air conditioner is much lower than the set temperature in the cooling mode, and the comfort is poor when a user approaches the direct blowing mode, so that the invention researches and designs the air conditioner indoor unit, the air conditioner and the control method.
Disclosure of Invention
Therefore, the technical problem to be solved by the present invention is to overcome the defect of the air conditioner in the prior art that the air flow loss of the air in the air supply mode is large, so as to provide an air conditioner indoor unit, an air conditioner and a control method.
The invention provides an air-conditioning indoor unit, comprising:
the air conditioner comprises a shell, a first air port, a second air port and a fan component, 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 fan component is arranged in the internal air channel; the fan is characterized in that a heat exchanger is further arranged inside the shell, and a middle air port is further formed in the position, between the heat exchanger and the fan component, on the shell.
Preferably, the first and second electrodes are formed of a metal,
the cross section of the shell is of a polygonal structure or a circular structure; the middle air port is arranged on the shell in an annular structure; or when the cross section of the shell is in a polygonal structure, the middle air ports are arranged on more than two side faces of the shell in the polygonal structure.
Preferably, the first and second electrodes are formed of a metal,
and a movement mechanism is also arranged on the shell and positioned at the position of the middle air port, and the movement mechanism can move to open and close the middle air port.
Preferably, the first and second electrodes are formed of a metal,
the second air ports are arranged at the lower part of the shell, and the second air ports are arranged on more than two side surfaces of the shell with the polygonal structure; and/or 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 fan component is a counter-rotating fan, the counter-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 second fan blade is electrically connected with the first fan blade to drive the first fan blade to rotate, and the second fan blade is electrically connected with the second fan blade to drive the second fan blade to rotate.
Preferably, the first and second electrodes are formed of a metal,
a flow guide component is also arranged between the heat exchanger and the counter-rotating fan, one axial end of the flow guide component extends to a position which is connected with an air duct opening of the heat exchanger, and the other axial end of the flow guide component extends to a position which is equal to the width of an air duct axial section of the counter-rotating fan.
Preferably, the first and second electrodes are formed of a metal,
the flow guide part is in a flow guide ring structure, 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 arc line or a multi-arc line.
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.
The invention also provides a control method of the air conditioner, which uses the air conditioner indoor unit of any one of the above items to switch and control the air conditioner according to different working modes.
Preferably, the first and second electrodes are formed of a metal,
when the air supply mode needs to be operated, the middle air port is controlled to be opened, the first air port is opened, the second air port is closed, and the fan component is controlled to enable air flow to enter the shell from the middle air port and be blown out from the first air port; or controlling the fan member so that the air flow enters the housing from the first port and is blown out from the intermediate port.
When the air conditioner needs to operate in a refrigeration mode, the intermediate air port is controlled to be closed, the first air port is opened, the second air port is opened, and the fan component is controlled to enable air flow to enter the shell from the second air port and be blown out from the first air port;
when the heating mode needs to be operated, the intermediate air port is controlled to be closed, the first air port is opened, the second air port is opened, and the fan component is controlled to enable air flow to enter the shell from the first air port and be blown out from the second air port;
when the air conditioner needs to operate in the refrigerating and mixing mode, the opening of the middle air port, the opening of the first air port and the opening of the second air port are controlled, and the fan component is controlled to enable air flow to enter the shell from the second air port and the middle air port and be blown out from the first air port.
The air conditioner indoor unit, the air conditioner and the control method provided by the invention have the following beneficial effects:
1. according to the invention, the middle air port except the first air port and the second air port is arranged in the middle position of the shell of the indoor unit of the air conditioner, which is positioned between the heat exchanger and the fan component, so that most of air flow is sucked from the middle air port by opening the middle air port and the air outlet (the first air port or the second air port) positioned on one side of the fan component under the independent air supply mode, and the air flow avoids the heat exchanger from the middle air port, thereby effectively reducing the air flow loss, greatly increasing the air flow, realizing the air supply effect of large air flow, ensuring that the air supply distance is long, enhancing the large circulating air flow in a room, and improving the comfort of users; and above-mentioned structure can also be when refrigerating the mode, and the air current inhales simultaneously from leeward mouth and middle part wind gap, makes cold wind and hot-blast mixing blow out, can reduce the uncomfortable of cold wind direct blow people, promotes the travelling comfort.
2. The invention also can realize the air-out from the air port at the upper part by the counter-rotating fan during the refrigeration in summer and the air-out from the air port at the lower part by the counter-rotating fan during the refrigeration in winter by arranging the structural form of the counter-rotating fan and the arrangement of the first air port and the second air port in the internal air duct of the indoor unit of the air conditioner, can effectively increase the opening area of the second air port by arranging the polygonal shell and the structural form of the second air port on two or more side surfaces of the polygonal shell, effectively improve the air flow circulation area of the air-in or air-out from the lower part of the shell, thereby effectively improving the heat exchange effect and the indoor refrigeration or heating comfort level, and can lead the air flow from the counter-rotating fan to the heat exchanger completely and uniformly through the heat exchanger arranged in the internal air duct and the structural form of the flow guide part arranged between the heat exchanger and the counter-rotating fan, 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.
3. 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 an indoor unit of an air conditioner according to the present invention;
FIG. 2 is a front view of the indoor unit of the air conditioner of the present invention;
FIG. 3 is a schematic view of the principle structure of the indoor unit of the air conditioner in the cooling mode;
FIG. 4 is a schematic structural view of the air conditioner in the heating mode;
FIG. 5 is a schematic diagram of the air supply mode of the indoor unit of the air conditioner;
fig. 6 is a schematic structural view of the air conditioner indoor unit of the present invention in a hybrid mode (cooling + blowing).
The reference numbers in the figures denote:
1. an air conditioner; 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; 7. a middle tuyere; 21. a first tuyere; 22. a second tuyere; 22a and a lower air inlet I; 22b and a lower air inlet II; 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, including:
the air conditioner comprises a shell 2, a first air port 21, a second air port 22 and a fan component, 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 fan component is arranged inside the internal air channel 3; the shell 2 is also internally provided with a heat exchanger 5, and the shell 2 is also provided with a middle air port 7 at a position between the heat exchanger 5 and the fan component.
The middle air ports except the first air port and the second air port are arranged in the middle of the shell of the indoor air conditioner body, the middle air port and the air outlet (the first air port or the second air port) on one side of the fan component are opened under the independent air supply mode, most of air flow is sucked from the middle air port, and the air flow avoids the heat exchanger from the middle air port, so that the air flow loss is effectively reduced, the air flow is greatly increased, the air supply effect with large air flow can be realized, the air supply distance is long, the large circulating air flow in a room is enhanced, and the user comfort is improved; and above-mentioned structure can also be when refrigerating the mode, and the air current inhales simultaneously from leeward mouth and middle part wind gap, makes cold wind and hot-blast mixing blow out, can reduce the uncomfortable of cold wind direct blow people, promotes the travelling comfort.
Preferably, the first and second electrodes are formed of a metal,
the cross section of the shell 2 is of a polygonal structure or a circular structure, and the middle air port 7 is arranged on the shell 2 in an annular structure; or, when the cross section of the housing is a polygonal structure, the middle tuyere 7 is arranged on more than two sides of the housing with the polygonal structure. The air inlet structure is the optimal structure form of the shell and the optimal structure form of the middle air inlet, and can effectively increase the air inlet area of the middle air inlet and improve the air supply effect.
Preferably, the first and second electrodes are formed of a metal,
and a movement mechanism is also arranged on the shell 2 and positioned at the position of the middle air port 7, and the movement mechanism can move to open the middle air port 7 and close the middle air port 7. The opening and closing of the middle air port can be effectively controlled through the movement mechanism, so that the middle air port is controlled to be opened in an air supply mode and a mixed mode (refrigeration and air supply), and the middle air port is controlled to be closed in other modes. As shown in fig. 5, under the action of the movement mechanism, the middle air port 7 of the casing is opened, the air duct is communicated with the outside, the air guide mechanism of the first lower air port 22a and the second lower air port 22b is closed, the air flow is sucked from the middle air port 7 under the action of the upward air supply of the first axial fan blade 4a and the second axial fan blade 4b, and finally the air flow is blown out from the upper air port (i.e. the first air port 21), and the air flow sucked from the middle air port 7 does not pass through the heat exchanger 5, so that the resistance of the air flow is greatly reduced, the air volume is increased, and the air supply effect with large air volume is realized. When the air supply mode is used, the first axial flow fan blade 4a and the second axial flow fan blade 4b rotate to supply air downwards, and air flow is sucked from an upper air inlet (namely, a first air inlet 21), passes through the first axial flow fan blade 4a and the second axial flow fan blade 4b and is finally blown out from a middle air inlet 7.
Preferably, the first and second electrodes are formed of a metal,
the second air ports 22 are arranged at the lower part of the shell 2, and the second air ports 22 are arranged on more than two side surfaces of the shell with a polygonal structure; and/or the first tuyere 21 is arranged at the upper part of the shell 2, and the first tuyere 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.
Through the polygonal shell and the structural form that the second air ports are arranged on more than two side surfaces of the polygonal shell, the opening area of the second air ports can be effectively increased, and the air flow area of air inlet or 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 comfort level is improved; the first air port is arranged at the top end of the internal air duct, and air can be exhausted through the first air port 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 fan component is a counter-rotating fan 4, 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.
By arranging the structural form of the counter-rotating fan and the arrangement of the first air port and the second air port in the internal air duct of the indoor unit of the air conditioner, the counter-rotating fan can realize upward air outlet from the air port at the upper part during refrigeration in summer and realize downward air outlet from the air port at the lower part during refrigeration in winter; and can arrange about through two fans that revolve to the difference, and rotation direction is opposite, realizes the effect towards the same direction air-out, improves air-out ability, and makes the air-out up during refrigeration, and the air-out down during heating.
Preferably, the first and second electrodes are formed of a metal,
the second fan blade also comprises a first motor 4c and a second motor 4d, the first motor 4c is electrically connected with the first fan blade 4a to drive the first fan blade 4a to rotate, and the second motor 4d is electrically connected with the second fan blade 4b to drive the second fan blade 4b to rotate. 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,
a flow guide part 6 is further arranged between the heat exchanger 5 and the counter-rotating fan 4, one axial end of the flow guide part 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 part 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; the air flow passing through the heat exchanger can be guided to the counter-rotating fan and blown out more completely, or the air flow passing through the counter-rotating fan can be guided to the heat exchanger and blown out more completely, so that the effect of uniform diffusion or contraction on the fluid is further effectively improved, the flow nonuniformity of the air flow between the counter-rotating fan and the heat exchanger is further reduced, the air volume of the whole machine is further improved, and the noise is reduced.
Preferably, the first and second electrodes are formed of a metal,
the flow guide part 6 is of a flow guide ring structure, 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 arc line or a multi-arc line. Set up it to the rotating surface around the axis symmetry of disrotatory fan, can guide the water conservancy diversion with the air current through this rotating surface, because heat exchanger and disrotatory axial fan arrange can cause axial flow area inequality between them in same wind channel usually, and water conservancy diversion part and combination between them, can realize going up the even water conservancy diversion of air-out and air-out down, carry out even diffusion or shrink to the fluid, reduce the air current and in the flow inhomogeneities between disrotatory axial fan and heat exchanger, for providing good fluid leading-in or derive the effect to disrotatory axial fan and heat exchanger, promote the complete machine amount of wind, the noise reduction.
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 an electrical box I and an electrical box II 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 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 invention also provides a control method of the air conditioner, which uses the air conditioner indoor unit of any one of the above items to switch and control the air conditioner according to different working modes. Therefore, the operation effects of multiple modes such as simple air supply, refrigeration, heating, mixed mode of air supply and refrigeration and the like can be realized indoors.
Preferably, the first and second electrodes are formed of a metal,
when the air supply mode needs to be operated, the middle air port is controlled to be opened, the first air port is opened, the second air port is closed, and the fan component is controlled to enable air flow to enter the shell from the middle air port and be blown out from the first air port; or controlling the fan member so that the air flow enters the housing from the first port and is blown out from the intermediate port.
When the air conditioner needs to operate in a refrigeration mode, the intermediate air port is controlled to be closed, the first air port is opened, the second air port is opened, and the fan component is controlled to enable air flow to enter the shell from the second air port and be blown out from the first air port;
when the heating mode needs to be operated, the intermediate air port is controlled to be closed, the first air port is opened, the second air port is opened, and the fan component is controlled to enable air flow to enter the shell from the first air port and be blown out from the second air port;
when the air conditioner needs to operate in the refrigerating and mixing mode, the opening of the middle air port, the opening of the first air port and the opening of the second air port are controlled, and the fan component is controlled to enable air flow to enter the shell from the second air port and the middle air port and be blown out from the first air port.
The control means can realize the control switching function of multiple modes such as pure indoor air supply, refrigeration, heating, mixed mode of air supply and refrigeration and the like, and meet the requirements of multiple different functions and effects of indoor refrigeration, heating, pure indoor air supply and mixed mode of air supply and refrigeration.
The traditional indoor cabinet air conditioner generally has modes of refrigeration, heating, air supply and the like, and because the modes of refrigeration, heating and the like need heat exchange, airflow in an air duct needs to exchange heat through a heat exchanger, so the heat exchanger has larger resistance, and the air volume of the whole machine is reduced. The air supply mode is that the air current does not need to pass through the heat transfer, but the function of direct delivery air plays the effect of adjusting room air current circulation under the moderate environment of temperature, but passes indoor cabinet-type air conditioner when the air supply mode, and the air current still need pass through the heat exchanger, produces great amount of wind loss. This patent adopts the casing wind channel in many wind gaps, when the air supply mode is opened, can realize that the air current does not directly get into the fan through the heat exchanger, blows off from the wind gap at last, forms the big circulating air current in the room, and its air current need not pass through the heat exchanger, and the pipe resistance reduces to make the amount of wind increase, compare in traditional cabinet-type air conditioner, its amount of wind is big, and the air supply form is various, and the travelling comfort is strong, but remote air supply.
In fig. 1, 1 is an air-conditioning indoor complete machine; 2 is a shell; an upper air inlet (namely a first air inlet 21) is arranged at the upper end of the shell; the lower end of the shell is provided with a first lower air inlet 22a and a second lower air inlet 22 b; and 24 is a shell base. In FIG. 2, 23 is a top cover for guiding flow, which includes a flow guiding member; the 4a and the 4b are respectively an axial flow fan blade I and an axial flow fan blade II which are respectively driven by a motor I4 c and a motor II 4d of the fan assembly; 3 is an internal air duct; 5 is a square heat exchanger; and 7 is a middle air port (namely a middle air port) of the shell, and is positioned between the counter-rotating fan 4 and the heat exchanger 5, wherein the middle air port 7 of the shell comprises a movement mechanism and a filter screen.
In the air supply mode, as shown in fig. 5, under the action of the movement mechanism, the middle air opening 7 of the shell is opened, the air duct is communicated with the outside, the air guide mechanism of the first lower air opening 22a and the second lower air opening 22b is closed, under the action of upward air supply of the first axial fan blade 4a and the second axial fan blade 4b, air flow is sucked from the middle air opening 7, and finally air flow is blown out from the upper air opening (namely the first air opening 21), and the air flow sucked from the middle air opening 7 does not pass through the heat exchanger 5, so that the resistance of the air flow is greatly reduced, the air volume is increased, and the air supply effect with large air volume is realized.
When the air supply mode is used, the first axial flow fan blade 4a and the second axial flow fan blade 4b rotate to supply air downwards, and air flow is sucked from an upper air inlet (namely, a first air inlet 21), passes through the first axial flow fan blade 4a and the second axial flow fan blade 4b and is finally blown out from a middle air inlet 7.
In the cooling mode, the upper and lower air ports are opened, and the middle air port 7 can be normally cooled without being opened, as shown in fig. 3; the middle air port 7 can be opened, the sucked external air is converged with the cold air coming out of the heat exchanger 5 and is blown out through the fans 4a and 4b and the upper air port 21, so that the cold air and the mixed hot air are blown out, the discomfort of a refrigeration direct blowing person is reduced, and the comfort of a user is improved.
In other modes (air flow needs to exchange heat), the middle air port 7 of the shell is closed and sealed under the action of the movement mechanism, the air duct is isolated from the outside, and the air flow is only sucked from one of the upper air port and the lower air port, passes through the heat exchanger 5 and is blown out from the other air port, as shown in fig. 4.
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 (12)
1. An air conditioning indoor unit, 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 fan component, 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 fan component is arranged in the internal air channel (3); the fan is characterized in that a heat exchanger (5) is further arranged inside the shell (2), and a middle air port (7) is further arranged on the shell (2) and located between the heat exchanger (5) and the fan component.
2. An indoor unit of an air conditioner according to claim 1, wherein:
the cross section of the shell (2) is of a polygonal structure or a circular structure, and the middle air port (7) is arranged on the shell (2) in an annular structure; or when the cross section of the shell is of a polygonal structure, the middle air ports (7) are arranged on more than two sides of the shell of the polygonal structure.
3. An indoor unit of an air conditioner according to claim 1, wherein:
and a movement mechanism is further arranged on the shell (2) and positioned at the position of the middle air port (7), and the movement mechanism can move to open the middle air port (7) and close the middle air port (7).
4. An indoor unit of an air conditioner according to claim 2, wherein:
the second air ports (22) are arranged at the lower part of the shell (2), and the second air ports (22) are arranged on more than two side surfaces of the shell with a polygonal structure; and/or 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.
5. An indoor unit of an air conditioner according to claim 4, wherein:
the fan component is a counter-rotating fan (4), 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 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 according to claim 5, wherein:
the contra-rotating fan (4) further comprises a first motor (4c) and a second motor (4d), 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 according to claim 5 or 6, wherein:
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 which is 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 which is equal to the width of an air duct axial section of the counter-rotating fan (4).
8. An indoor unit of an air conditioner according to claim 7, wherein:
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.
9. An indoor unit of an air conditioner according to any one of claims 1 to 8, wherein:
a flow guide top cover (23) is arranged at the position of the first air opening (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 opening (21) and can also be lowered to close the first air opening (21); or the air guide top cover does not move, the air-conditioning indoor unit further comprises a first air guide mechanism arranged at the first air opening, and the first air guide mechanism or the shell can move to open or close the first air opening; and/or a second air guide mechanism is further arranged at the second air inlet and can move to open or close the second air inlet; and/or an electrical box I and an electrical box II 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 connected manner.
10. An air conditioner, characterized in that: an indoor unit of an air conditioner comprising any one of claims 1 to 9.
11. A control method of an air conditioner is characterized in that: the indoor unit of an air conditioner according to any one of claims 1 to 9, wherein the air conditioner is controlled to be switched according to different operation modes.
12. The control method according to claim 11, characterized in that:
when the air supply mode needs to be operated, the middle air port is controlled to be opened, the first air port is opened, the second air port is closed, and the fan component is controlled to enable air flow to enter the shell from the middle air port and be blown out from the first air port; or controlling the fan member so that the air flow enters the housing from the first port and is blown out from the intermediate port.
When the air conditioner needs to operate in a refrigeration mode, the intermediate air port is controlled to be closed, the first air port is opened, the second air port is opened, and the fan component is controlled to enable air flow to enter the shell from the second air port and be blown out from the first air port;
when the heating mode needs to be operated, the intermediate air port is controlled to be closed, the first air port is opened, the second air port is opened, and the fan component is controlled to enable air flow to enter the shell from the first air port and be blown out from the second air port;
when the air conditioner needs to operate in the refrigerating and mixing mode, the opening of the middle air port, the opening of the first air port and the opening of the second air port are controlled, and the fan component is controlled to enable air flow to enter the shell from the second air port and the middle air port and be blown out from the first air port.
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