CN211119677U

CN211119677U - Machine and air conditioner in air conditioning of reversible air supply

Info

Publication number: CN211119677U
Application number: CN201921937096.9U
Authority: CN
Inventors: 董明珠; 吴俊鸿; 黄鑫; 陈英强; 梁博; 李业强; 李树云; 李建建; 肖洪力; 何博
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2019-11-08
Filing date: 2019-11-08
Publication date: 2020-07-28
Anticipated expiration: 2029-11-08

Abstract

The utility model provides a machine and air conditioner in air conditioning of reversible air supply, the machine includes in the air conditioning: 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 shell is internally provided with a heat exchanger, and the cross section of the heat exchanger is of a polygonal structure or a G-shaped structure or an annular structure. Through the utility model discloses no matter be summer or winter can both accomplish the purpose to indoor improvement heat transfer effect, and refrigerate in summer and realize air-out on the shower formula, heat winter and realize air-out under the carpet formula, can also improve the heat transfer effect, can also make the volume reduce, save space for indoor human comfort level obtains very big improvement.

Description

Machine and air conditioner in air conditioning of reversible air supply

Technical Field

The utility model belongs to the technical field of the air conditioner, concretely relates to machine and air conditioner in air conditioning of reversible air supply.

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. 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 indoor unit of the cabinet air conditioner has higher axial height and larger occupied space.

Because the air conditioner among the prior art exists and can't also can realize large tracts of land air inlet or air-out, improve heat transfer effect and reduce the axial height scheduling technical problem of machine in the cabinet air conditioner simultaneously when realizing air-out on the refrigeration in summer, heating down in winter, consequently the utility model discloses the research designs a machine and air conditioner in reversible air supply's air conditioner.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the air conditioner among the prior art and can't realize large tracts of land air inlet or air-out and reduce the defect of cabinet-type air conditioner axial height in the air-out can also be realized down to air-out, the winter heating on realizing cooling in summer to an air conditioning indoor set and air conditioner of reversible air supply are provided.

The utility model provides an indoor unit of air conditioning of reversible air supply, it includes:

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 shell is internally provided with a heat exchanger, and the cross section of the heat exchanger is of a polygonal structure or a G-shaped structure or an annular structure.

Preferably, the first and second electrodes are formed of a metal,

the heat exchanger with the G-shaped structure comprises three arc sections, and/or the axial height L0 of the heat exchanger is 300-500 mm, and/or the minimum axial distance L2 between the heat exchanger with the G-shaped structure and the counter-rotating fan is 340mm, and/or the minimum distance between the outer surface of the heat exchanger with the G-shaped structure and the inner wall of the cylindrical shell is L1, and L1 is 5-50 mm.

Preferably, the first and second electrodes are formed of a metal,

the cross section of the shell is of a polygonal structure, 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 of 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 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,

the axial height L3 of the second tuyere is less than or equal to the height L0 of the heat exchanger in the G-shaped structure, and the minimum axial height L4 of the top end of the second tuyere and the counter-rotating fan is greater than or equal to the minimum axial distance L2 of the heat exchanger in the G-shaped structure and the counter-rotating fan.

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 fan blade assembly is characterized by further comprising 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,

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,

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 utility model also provides an air conditioner, it includes preceding arbitrary the air conditioning indoor set of reversible air supply.

The utility model provides a pair of machine and air conditioner have following beneficial effect in air conditioning of reversible air supply:

1. the utility model discloses a set up the structural style of counter-rotating fan and the setting of first wind gap and second wind gap in the inside wind channel of air conditioning indoor set, can realize going up the air-out from the wind gap that is located the upper portion through counter-rotating fan when refrigerating in summer, realize going down the air-out from the wind gap that is located the lower part through counter-rotating fan when refrigerating in winter, and through setting up heat exchanger and cross section in the inside wind channel and being polygonal structure or "G" shape structure or annular structure, can realize many ways, the even air supply of multi-angle, and directional air supply, reach the purpose of circumference business turn over wind, circumference business turn over wind area is big, heat transfer area is increased, the heat transfer effect is promoted, be favorable to the rapid heating up when heating the; the axial height of the heat exchanger can be reduced under the same heat exchange effect through the means, the space is saved, and the reversible air duct is combined with the counter-rotating axial flow fan, so that the axial height of the indoor unit of the air conditioner can be effectively 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 heat exchange effect is improved, the size can be reduced, the space is saved, and the comfort level of the indoor human body is greatly improved.

2. The utility model adopts the counter-rotating axial flow fan blade to effectively increase wind pressure, improve wind quantity and realize remote air 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 air supply air conditioner indoor unit of the present invention;

fig. 2 is a schematic view of the front internal structure of the reversible air supply indoor unit of the air conditioner of the present invention;

fig. 3 is a schematic cross-sectional view of a heat exchanger portion of a reversible blowing air-conditioning indoor unit according to the present invention;

fig. 4 is a schematic perspective view of a flow guide component in the reversible air supply air conditioner indoor unit of the present invention;

FIG. 5 is a schematic view of the air conditioner indoor unit with reversible air supply according to the present invention;

fig. 6 is a schematic structural diagram of the air conditioner indoor unit with reversible air supply of the present invention during heating;

fig. 7 is a schematic perspective view of a G-shaped heat exchanger in a reversible air supply air conditioner indoor unit 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. 1-7, the utility model provides a machine in reversible air conditioning, it includes:

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 shell 2 is also internally provided with a heat exchanger 5, and the cross section of the heat exchanger 5 is of a polygonal structure or a G-shaped structure or an annular structure.

The utility model discloses a set up the structural style of counter-rotating fan and the setting of first wind gap and second wind gap in the inside wind channel of air conditioning indoor set, can realize going up the air-out from the wind gap that is located the upper portion through counter-rotating fan when refrigerating in summer, realize going down the air-out from the wind gap that is located the lower part through counter-rotating fan when refrigerating in winter, and through setting up heat exchanger and cross section in the inside wind channel and being polygonal structure or "G" shape structure or annular structure, can realize many ways, the even air supply of multi-angle, and directional air supply, reach the purpose of circumference business turn over wind, circumference business turn over wind area is big, heat transfer area is increased, the heat transfer effect is promoted, be favorable to the rapid heating up when heating the; the axial height of the heat exchanger can be reduced under the same heat exchange effect through the means, the space is saved, and the reversible air duct is combined with the counter-rotating axial flow fan, so that the axial height of the indoor unit of the air conditioner can be effectively 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 heat exchange effect is improved, the size can be reduced, the space is saved, and the comfort level of the indoor human body is greatly improved.

Preferably, the first and second electrodes are formed of a metal,

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. This is the utility model discloses a further preferred structural style of water conservancy diversion part can make the air current through the heat exchanger can be blown off to the counter-rotating fan by the water conservancy diversion more completely, perhaps makes the air current through the counter-rotating fan can be blown off to heat exchanger department by the water conservancy diversion more completely to further effectively improve and carry out even diffusion or contraction action to the convection current, further reduce the air current in the flow inhomogeneity between counter-rotating fan and heat exchanger, further promote the complete machine amount of wind, noise reduction.

Preferably, the first and second electrodes are formed of a metal,

the heat exchanger of the G-shaped structure comprises three arc sections, and/or the axial height L0 of the heat exchanger is 300-500 mm, the optimal value is 420mm, and/or the minimum axial distance L2 between the heat exchanger of the G-shaped structure and the counter-rotating fan is 340mm, and/or the minimum distance between the outer surface of the heat exchanger of the G-shaped structure and the inner wall of the cylindrical shell is L1, L1 is 5-50 mm, and the optimal value is 20 mm.

Preferably, the first and second electrodes are formed of a metal,

the cross section of the shell is of a polygonal structure, 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 of the 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 polygonal casing and all set up the structural style in second wind gap on polygonal casing more than two sides, can increase the area of seting up in second wind gap effectively, effectively improve the air current flow area from casing lower part air inlet or air-out to promote the heat transfer effect effectively, promote indoor refrigeration or heat the comfort level.

The first air port is arranged at the top end of the internal air channel and can be used for air outlet during refrigeration through the first air port, 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 of the utility model has a further optimized structure, and the area of air outlet or air inlet on the upper part can be increased by arranging five or six sides on the upper part or arranging first air ports on two opposite sides, 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.

In the optimal embodiment, the shell 2 can be replaced by a polygonal shape with a circular, hexagonal or more cross-sectional shape, so that the internal air channels are various, and the air ports at the upper end and the lower end have more arrangement modes; and the air conditioner can be divided into an upper part and a lower part which are combined in a way that the radial section is circular and polygonal, and the air conditioner is in the protection range of the utility model as long as the air conditioner is in a cylindrical or cylindrical combined form.

The position of the first air port 21 can be replaced by an annular air port which is positioned on all the panels, so that the air outlet direction and the air outlet space are larger.

The positions of the first lower air opening 22a and the second lower air opening 22b can be replaced by annular air openings which are positioned on all the panels, so that the air outlet direction and the air outlet space are larger;

the axial flow fan blade I4 a and the axial flow fan blade II 4b can be replaced by one axial flow fan blade or 3 axial flow fan blades, and when the axial flow fan blades are 3 axial flow fan blades, the rotating directions of at least two fan blades are opposite.

The heat exchanger 5 may alternatively be a heat exchanger with a circular radial cross-section.

The first motor 4c and the second motor 4d can be replaced by a double-shaft motor which is positioned between the axial flow fan blade I4 a and the axial flow fan blade II 4 b.

The lower tuyere one filter screen assembly 22c and the lower tuyere two filter screen assembly 22d can be recovered or operated, but at least the filter screen assembly at one end of the upper tuyere and the lower tuyere is kept to operate.

Preferably, the first and second electrodes are formed of a metal,

the axial height L3 of the second tuyere 22 is less than or equal to the height L0 of the heat exchanger with the G-shaped structure, and the minimum axial height L4 of the top end of the second tuyere 22 and the counter-rotating fan is greater than or equal to the minimum axial distance L2 of the heat exchanger with the G-shaped structure and the counter-rotating fan, so that the wind entering or exiting from the second tuyere can completely exchange heat with the G-shaped heat exchanger, thereby preventing the air flow from flowing away without passing through the heat exchanger, and effectively improving the heat exchange effect of the heat exchanger.

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. This is the utility model discloses a to cyclone's preferred structural style, can arrange from top to bottom to the fan of difference through two soon, and direction of rotation is opposite, realizes the effect towards the air-out of same direction, improves the air-out ability, makes air-out up when just refrigerating, and the air-out down when 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 fan blade assembly is characterized by further comprising 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 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 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 axial air duct width of the counter-rotating fan 4. Can make the air current through the heat exchanger can be totally by the water conservancy diversion to the cyclone and blown off, perhaps make the air current through the cyclone can be more totally by the water conservancy diversion to heat exchanger department and blown off to effectively improve and carry out even diffusion or contraction action to the fluid, reduce the air current in the flow inhomogeneity between cyclone and heat exchanger, promote the complete machine amount of wind, 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 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 utility model discloses a cylindricality casing to open at both ends about the wind channel has the wind gap, and the heat exchanger arranges in the wind channel, and at the inside disrotatory axial fan subassembly that sets up reversible air supply in the wind channel, revolve to can change the air supply direction through changing the fan, realize producing two kinds of air current opposite direction's air supply effect in same wind channel. In the refrigeration mode, air enters from the lower end of the air conditioner, air at the lower end of a room is sucked, cold air is blown out from the upper part of the air conditioner after heat exchange of the heat exchanger, and large circulating airflow which is cool at the top and cool at the bottom is formed in the room; air is sucked from the upper end of the air conditioner in the heating mode, hot air is blown out from the lower end of the air conditioner after heat exchange of the heat exchanger, hot and high-temperature large circulating airflow is formed in a room, the cold and heat exchange speed is increased, the comfort is improved, and the air supply distance is increased. The shell has a cylindrical section, is suitable for placing a structural symmetrical counter-rotating axial flow fan, and occupies a small area; compared with the traditional cabinet air conditioner, the G-shaped heat exchanger can circumferentially enter and exit air, and the circumferential air inlet and outlet area is large, so that the axial height of the heat exchanger is reduced, the space is saved, and the reversible air duct is combined with the counter-rotating axial flow fan to effectively reduce the axial height of the air conditioner; and because the symmetrical structure of the G-shaped heat exchanger (circular heat exchanger) is matched with the lower air inlet, the multi-direction and multi-angle uniform air supply and directional air supply can be realized, and the rapid temperature rise in the heating working condition is facilitated.

1. A cylindrical shell air duct is adopted, air ports are formed in the upper end and the lower end of the air duct, and a heat exchanger is arranged in the air duct and is positioned between an upper air port and a lower air port; the air supply effect with opposite airflow directions can be realized in the same air duct; the air in the refrigeration mode enters from the lower end of the air conditioner, the air at the lower end of a room is sucked, cold air is blown out from the upper part of the air conditioner after heat exchange of the air conditioner, and large circulating airflow which is cool at the top and cool at the bottom is formed in the room; the air in the heating mode enters from the upper end of the air conditioner, and hot air is blown out from the lower end of the air conditioner after heat exchange of the air conditioner, so that large circulating airflow with lower heat and upper temperature is formed in a room;

2. the disrotatory axial flow fan assembly is arranged in the air duct and positioned between the heat exchanger and the upper air inlet, and the air supply direction of the disrotatory axial flow fan is reversible; hot air can be blown out from the lower end of the air conditioner during heating, so that the heat exchange is accelerated, the heating speed is increased, and the room temperature is uniformly distributed;

3. cold air can be blown out from the upper end of the air conditioner during refrigeration, thereby accelerating cold and heat exchange, improving the cooling speed and enabling the room temperature to be uniformly distributed;

4. the heat exchanger is located between the counter-rotating axial flow fan and the lower air inlet, the shape of the heat exchanger can be a G-shaped heat exchanger or a round heat exchanger, the G-shaped heat exchanger is preferred, the radial section of the G-shaped heat exchanger is G-shaped and provided with three arc sections, the axial height L0 is 300-500 mm, the preferred value is 420mm, the heat exchanger uniformly blows air in the circumferential direction, and multi-direction and multi-angle uniform air supply and directional air supply can be achieved.

5. The minimum axial distance L2 of G shape heat exchanger and disrotatory axial fan is 340mm, L1 is the minimum distance of G shape heat exchanger surface and cylindricality casing inner wall, L1 is 5 ~ 50mm, and the preferred value is 20 mm.

6. The lower air port is positioned at the lower end of the shell and can be a single air port or a plurality of air ports, the single air port is positioned on the front panel, or the lower air port is a circumferential annular air port at the lower end of the shell and can circumferentially exhaust air; when the air ports are multiple, the air ports are positioned on the front panel and the two adjacent side surfaces, and preferably two air ports are selected.

7. The axial height L3 of the lower air inlet is less than or equal to the height L0 of the G-shaped heat exchanger, and the minimum axial height L4 of the top end of the lower air inlet and the counter-rotating axial flow fan is more than or equal to L2.

8. And a water receiving tray is arranged at the lower end of the G-shaped heat exchanger.

The first implementation mode comprises the following steps:

in fig. 1, an air conditioner indoor whole machine or an air conditioner 1 comprises a front panel 1a, side panels 1c and 1d and a shell 2, wherein the radial section of the shell is pentagonal, a first air port 21 or an upper air port 21 is formed in the upper end of the shell, the upper air port 21 is located on two adjacent side faces of the front panel and the front panel, 21a is an upper air port filter screen assembly located at the upper air port, a lower air port 22a and a lower air port 22b are formed in the lower end of the shell, the lower air port 22a and the lower air port 22b are located on two adjacent side faces of the front panel, 22c and 22d are respectively a lower air port filter screen assembly and a lower air port filter screen assembly located at the lower air port, 24 is a shell base, 23 in fig. 2 is a flow guide top cover and comprises a flow guide component, 4a and 4b are respectively a first axial flow fan blade (or first axial flow fan blade or second axial flow fan blade) which are respectively driven by motors 4c and 4d of the fan assembly, wherein the first axial flow fan blade 4a is the same as a second axial flow fan blade 4b, the axial flow direction of the same as the axial flow direction of the axial flow fan blades, the axial flow of the axial flow fan blades are mutually opposite, the axial flow of the axial flow fan blades, the axial flow heat exchanger 2 is a heat exchanger 2, the axial flow of the axial flow heat exchanger is preferably, the axial flow heat exchanger 2, the axial flow of the axial flow heat exchanger is a heat exchanger, the axial flow of the axial flow heat exchanger, the.

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	1267
Heating condition	1400	1150

The second embodiment:

in fig. 1, an air conditioner indoor whole machine or an air conditioner 1 comprises a front panel 1a, side panels 1c and 1d and a shell 2, wherein the radial section of the shell is pentagonal, a first air port 21 or an upper air port 21 is formed in the upper end of the shell, the upper air port 21 is located on two adjacent side faces of the front panel and the front panel, 21a is an upper air port filter screen assembly located at the upper air port, a lower air port 22a and a lower air port 22b are formed in the lower end of the shell, the lower air port 22a and the lower air port 22b are located on two adjacent side faces of the front panel, 22c and 22d are respectively a lower air port filter screen assembly and a lower air port filter screen assembly located at the lower air port, 24 is a shell base, 23 in fig. 2 is a flow guide top cover and comprises a flow guide component, 4a and 4b are respectively a first axial flow fan blade (or first axial flow fan blade or second axial flow fan blade) which are respectively driven by motors 4c and 4d of the fan assembly, wherein the first axial flow fan blade 4a is the same as a second axial flow fan blade 4b, the axial flow direction, the axial flow fan blades, the axial flow direction of the axial flow fan blades are opposite, the axial flow blades are mutually equivalent to the axial flow of the axial flow fan blades, the axial flow of the axial flow fan blade or the axial flow of the axial fan blade or the axial flow of the axial fan assembly, the axial fan is equal to the axial fan, the axial flow of the axial fan, the axial fan is equal to the axial flow of.

operating conditions	Speed of rotation/rpm	Air volume/(m)³/h)
			Refrigeration working condition	1400	1380
Heating condition	1400	1260

The third embodiment is as follows:

in fig. 1, an air conditioner indoor whole machine or an air conditioner 1 comprises a front panel 1a, side panels 1c and 1d and a shell 2, wherein the radial section of the shell is pentagonal, a first air port 21 or an upper air port 21 is formed in the upper end of the shell, the upper air port 21 is located on two adjacent side faces of the front panel and the front panel, 21a is an upper air port filter screen assembly located at the upper air port, a lower air port 22a and a lower air port 22b are formed in the lower end of the shell, the lower air port 22a and the lower air port 22b are located on two adjacent side faces of the front panel, 22c and 22d are respectively a lower air port filter screen assembly and a lower air port filter screen assembly located at the lower air port, 24 is a shell base, 23 in fig. 2 is a flow guide top cover and comprises a flow guide component, 4a and 4b are respectively a first axial flow fan blade (or first axial flow fan blade or second axial flow fan blade) which are respectively driven by motors 4c and 4d of the fan assembly, wherein the first axial flow fan blade 4a is the same as a second axial flow fan blade 4b, the axial flow direction, the axial flow fan blades, the axial flow direction of the axial flow fan blades are opposite, the axial flow blades are mutually equivalent to the axial flow of the axial flow fan blades, the axial flow of the axial flow fan blade or the axial flow of the axial fan blade or the axial fan is equal to the axial flow of the axial fan, the axial fan blade or the axial flow of the axial fan, the axial fan is equal to the axial flow of the axial.

Operating conditions	Speed of rotation/rpm	Air volume/(m)³/h)
			Refrigeration working condition	1400	1345
Heating condition	1400	1210

The utility model discloses in, the air conditioner has multiple air supply mode can satisfy the room refrigeration, heats and the different demands of air supply mode, through control to the air supply direction of axial fan soon, realizes cold, hot-blast from different high positions and sees off for the room heat exchange makes room temperature distribution more even, promotes user's travelling comfort. The utility model discloses a protection scope includes but not limited to the shape and the angle parameter of water conservancy diversion part, heat exchanger and disrotatory axial fan's compound mode etc..

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of 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

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 heat exchanger (5) is further arranged inside the shell (2), and the cross section of the heat exchanger (5) is of a polygonal structure or a G-shaped structure or an annular structure.

2. An indoor unit of an air conditioner with reversible blowing according to claim 1, characterized in that:

3. An indoor unit of an air conditioner with reversible blowing according to any one of claims 1 to 2, characterized in that:

the cross section of the shell is of a polygonal structure, 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 of the 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.

4. An indoor unit of an air conditioner with reversible blowing according to claim 3, 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).

5. An indoor unit of an air conditioner with reversible blowing according to claim 3, characterized in that:

the axial height L3 of the second tuyere (22) is less than or equal to the height L0 of the heat exchanger in the G-shaped structure, and the minimum axial height L4 between the top end of the second tuyere (22) and the counter-rotating fan is greater than or equal to the minimum axial distance L2 between the heat exchanger in the G-shaped structure and the counter-rotating fan.

6. An indoor unit of an air conditioner with reversible blowing according to claim 3, 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.

7. An indoor unit of an air conditioner with reversible blowing according to claim 6, characterized in that:

the second fan blade assembly 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.

8. An indoor unit of an air conditioner with reversible blowing according to any one of claims 6 to 7, 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.

9. An indoor unit of an air conditioner with reversible blowing according to any one of claims 1 to 2 and 4 to 7, characterized in that:

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).

10. An indoor unit of an air conditioner with reversible blowing according to any one of claims 1 to 2 and 4 to 7, characterized in that:

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 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.