WO2015085635A1

WO2015085635A1 - Air conditioner and duct configuration thereof

Info

Publication number: WO2015085635A1
Application number: PCT/CN2013/090933
Authority: WO
Inventors: 孙云良; 刘阳
Original assignee: 广东美的制冷设备有限公司; 孙云良; 刘阳
Priority date: 2013-12-12
Filing date: 2013-12-30
Publication date: 2015-06-18
Also published as: US20160298870A1

Abstract

An air conditioner and cross-flow centrifugal duct configuration, the duct configuration comprising a cross-flow duct (100), the cross-flow duct (100) comprising a first motor (110), a cross-flow turbine (120) driven by the first motor (110), and a cross-flow volute (130) arranged outside the cross-flow turbine (120); the duct configuration also comprising a centrifugal duct (300) arranged at at least one end of the cross-flow duct (100), and the centrifugal duct (300) comprising a turbine (310) coaxially connected to the cross-flow turbine (120) and a centrifugal volute (320) arranged outside the turbine (310).

Description

Air conditioner and its air duct structure

Technical field

The present invention relates to the field of air conditioner technology, and more particularly to an air conditioner and a duct structure thereof.

Background technique

At present, there are generally three kinds of wind wheels for air conditioner indoor units, centrifugal type, cross flow type and axial flow type. These three types of wind turbines have different air supply modes, and one type of wind turbine is generally selected for the air conditioner indoor unit. The cross-flow type wind wheel has the characteristics of smooth airflow, low pressure and low noise. Therefore, some split-floor air-conditioner indoor units adopt a cross-flow type wind wheel, but at the same time, the cross-flow type wind wheel also has low air flow pressure, and the air supply is not sent. Far, the efficiency is also lower than the axial flow and the centrifugal wind wheel, and the split-floor air conditioner indoor unit adopting the cross-flow wind wheel generally has a rectangular air outlet on the front side, which is limited by the wind speed, and the air convection difference affects the entire indoor temperature distribution. Uniformity does not meet people's requirements for air conditioning comfort.

Summary of the invention

The object of the present invention is to provide an air conditioner and a duct structure thereof, which aim to solve the problem that the air supply effect of the split floor air conditioner using the cross flow type wind wheel existing in the prior art is poor, and the uniformity of the indoor temperature distribution is affected. problem.

In order to solve the above technical problem, the technical solution of the present invention is to provide a cross-flow centrifugal air passage structure, including a cross flow air passage, the cross flow air passage including a first motor, and a cross flow wind wheel driven by the first motor And a cross flow volute disposed outside the cross flow wind wheel; the air passage structure further includes a centrifugal air passage disposed at at least one end of the cross flow air passage, the centrifugal air passage including coaxial with the cross flow wind wheel a connected wind wheel and a centrifugal volute disposed outside the wind wheel.

Preferably, the wind wheel is a cross flow wind wheel or a centrifugal wind wheel, and the wind wheel and the cross flow wind wheel are integrally connected by a middle section partition plate.

Preferably, the end of the cross-flow wind wheel away from the wind wheel is provided with a sleeve, the sleeve is fixedly connected with the output shaft of the first motor, and the middle partition plate faces the end surface of the wind wheel The center has a shaft.

Preferably, the first motor has two opposite output shafts, and the two cross-flow wind wheels are respectively fixed on the two output shafts, and the centrifugal air passages are two wind turbines of two centrifugal air passages. They are coaxially connected to the two cross flow wind turbines respectively.

The present invention also provides an air conditioner comprising a fuselage, an evaporator disposed in the fuselage, and a duct structure disposed in the fuselage, the air duct structure including a cross flow duct and a centrifugal air duct disposed at at least one end of the cross flow duct, the cross flow air duct including a first motor, a cross flow wind wheel driven by the first motor, and a cross flow volute disposed outside the cross flow wind wheel, The centrifugal air duct includes a wind wheel coaxially connected to the cross flow wind wheel and a centrifugal volute disposed outside the wind wheel; the body is provided with a first air supply for the cross flow air passage An air inlet frame assembly and a first air outlet opening through which the wind flowing through the cross flow wind wheel is discharged; the second air inlet frame assembly that can supply air to the centrifugal air duct is further disposed on the air body and can be a second air outlet that is discharged through the wind of the wind wheel.

Preferably, the air conditioner is a split floor type air conditioner.

Preferably, the wind wheel is provided with an air inlet, and the air inlet communicates with the second air inlet frame assembly through an elbow.

Preferably, the second air inlet frame assembly is disposed on the side casing or the rear casing of the fuselage.

Preferably, the plurality of second air inlet frame assemblies are respectively disposed on the side casing or the rear casing of the fuselage.

Preferably, the first air outlet is disposed in a middle portion of the front casing of the air body, and the second air outlet is disposed at an upper portion or a lower portion of the front casing of the body.

Preferably, the air conditioner is a split wall type air conditioner.

Preferably, the wind wheel is provided with an air inlet, and the air inlet is in communication with the second air inlet frame assembly.

Preferably, the second air inlet frame assembly is two, and is disposed on a left side surface and a right side surface of the air body, respectively.

Preferably, the second air outlets are two, and the left and right sides are respectively disposed on the front casing of the fuselage.

Preferably, the electric control box is disposed on the back of the motor.

Preferably, a power component for driving the centrifugal volute around the wind wheel is further disposed in the fuselage.

Preferably, the power assembly includes a second motor, a driving gear fixedly coupled to an output shaft of the second motor, and a driven gear disposed on an outer wall of the centrifugal volute and meshing with the driving gear.

The air conditioner provided by the invention combines a cross flow air passage and a centrifugal air passage to form a cross flow centrifugal air passage, and realizes that one air conditioner has two air flow modes, and has the high speed and pressure of the cross flow air passage itself. Small, smooth airflow and low noise, it also has the characteristics of large air volume, large pressure, long air supply distance and good disturbance effect. At the same time, the rotary centrifugal volute also realizes multi-angle sweep to make indoor temperature. The distribution is more uniform, which greatly improves the comfort of the air conditioner.

DRAWINGS

Figure 1 is a front elevational view of a first embodiment of a split floor air conditioner according to the present invention;

Figure 2 is a cross-sectional view taken along line A-A of Figure 1;

Figure 3 is a cross-sectional view taken along line B-B of Figure 1;

Figure 4 is a cross-sectional view taken along line C-C of Figure 2;

Figure 5 is a view taken in the direction of D in Figure 2;

Figure 6 is a cross-sectional view showing a second embodiment of the split floor type air conditioner provided by the present invention;

Figure 7 is a front elevational view showing a first embodiment of a split wall-mounted air conditioner according to the present invention;

Figure 8 is a cross-sectional view taken along line A-A of Figure 7;

Figure 9 is a cross-sectional view taken along line B-B of Figure 7;

Figure 10 is a cross-sectional view taken along line C-C of Figure 7;

Figure 11 is a cross-sectional view taken along line D-D of Figure 7.

detailed description

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The main idea of the present invention is to combine a cross-flow air passage and a centrifugal air passage to form a cross-flow centrifugal air passage, so that one air conditioner has two air flow modes, which not only has a high-speed, low pressure, but also has a cross-flow air passage. The utility model has the advantages of stable airflow and low noise, and has the characteristics of large air volume of the centrifugal air passage, large pressure, long air supply distance and good disturbance effect. At the same time, the rotary centrifugal volute also realizes multi-angle sweeping, so that the indoor temperature distribution is further improved. Uniform, greatly improving the comfort of the air conditioner.

The above air conditioner may be a split floor type air conditioner and a split wall type air conditioner. The following description will be specifically made of a split floor type air conditioner and a split wall type air conditioner, respectively.

Referring to Figures 1 to 5, a first embodiment of a split floor air conditioner provided by the present invention is shown. The split floor air conditioner includes a fuselage, a cross-flow centrifugal air passage structure disposed in the fuselage, and the cross-flow centrifugal air passage structure includes a first motor 110 and is coaxially driven by the first motor 110 The cross flow wind wheel 120 and the wind wheel 310 and the cross flow volute 130 and the centrifugal volute 320 respectively disposed outside the cross flow wind wheel 120 and the wind wheel 310. The cross flow wind wheel 120 and the cross flow volute 130 form a cross flow duct 100, and the wind wheel 310 and the centrifugal volute 320 form a centrifugal air passage 300. The cross flow duct 100 is combined with the centrifugal duct 300 to form a cross-flow centrifugal duct structure in a split floor air conditioner. A first air inlet frame assembly 400 for supplying air to the cross flow wind wheel 120 in the cross flow air passage 100 and a first air outlet port 500 for discharging air flowing through the cross flow wind wheel 120 are disposed at a position corresponding to the cross flow air passage 100 on the airframe. The second air inlet frame assembly 600 for supplying air to the wind wheel 310 in the centrifugal air passage 300 is disposed on the air body, and the second air outlet port 700 for discharging the wind flowing through the wind wheel 320 is further disposed on the body.

The cross-flow wind wheel 120 and the wind wheel 310 are simultaneously rotated by the first motor 110, and under the action of the cross-flow volute 130 and the centrifugal volute 320, there are two different gas flow modes inside the fuselage. The airflow coming in from the first air inlet frame assembly 400 flows in a direction perpendicular to the axis of the cross flow wind wheel 120, that is, in the radial direction of the impeller of the cross flow wind wheel 120, penetrates the inside of the impeller, and is discharged radially from the other end. This wind flow It is a cross flow or a cross flow, and is finally discharged directly from the first air outlet 500, and the air flow path is a straight line. The cross flow wind wheel 120 has the characteristics of high rotation speed, small pressure, stable air flow and low noise, and the cooling and heating effect is mainly realized by the cross flow wind wheel 120 in the air conditioner. The airflow from the second air inlet frame assembly 600 passes through the wind wheel in the centrifugal air channel 300, and finally is discharged through the centrifugal volute 320 and the second air outlet 700. This part of the airflow has a high wind speed and a high pressure, which acts as a disturbance to the air outlet of the cross-flow wind wheel 120, so that the air forms a convection, and the indoor temperature distribution is more uniform, and the comfort of the air conditioner is improved on the basis of the cooling and heating of the cross-flow wind wheel 120. Sex. At the same time, the centrifugal duct 300 is compact in structure and low in cost, and can be realized by slightly increasing the length in the case of the same cross section as the conventional air conditioner.

In the present embodiment, the wind wheel 310 is a cross flow wind wheel, and the wind wheel 310 and the cross flow wind wheel 120 are integrally connected by the middle section partition plate 800. Here, the wind wheel 310 can be considered as part of the cross flow wind wheel 120. The cross-flow wind wheel 120 includes a plurality of sets of cross-flowing vane sets 121 connected end to end, and adjacent cross-flow vane sets 121 are connected by a mid-section dividing plate 800. The cross-flow vane group 121 at one end is connected to the first motor 110, and the cross-flow vane group 121 at the outermost end of the other end is the wind turbine 310. The centrifugal volute 320 is disposed on the outer side thereof, that is, the centrifugal duct 300 is formed. Of course, the wind wheel 310 may also be a centrifugal wind wheel, and the centrifugal wind wheel is also fixed to one end of the cross flow wind wheel 120 through the middle section dividing plate 800. The wind wheel 310 is provided with a centrifugal volute 320 on the outer side of the wind wheel 310, and the centrifugal volute 320 can be disposed on the outer side thereof to change the flow direction of the air flow, thereby realizing the disturbance to the air outlet of the cross flow wind wheel 120, forming convection of the air and improving the air supply. Comfort. When the centrifugal wind wheel rotates, centrifugal force is generated under the action of the impeller, and a negative pressure zone is formed at the center, so that the airflow is sucked into the wind wheel along the shaft, then diffused axially toward the periphery, and finally discharged through the centrifugal volute 320. In this process, the centrifugal wind wheel has a large air volume and a large pressure, so the disturbance effect is better, that is, the centrifugal wind wheel is combined with the centrifugal volute 320, which is more conducive to improving the comfort of the air conditioner.

Referring to FIG. 4, a sleeve 122 is disposed at an end of the cross-flow wind wheel 120 away from the wind wheel 310. The sleeve 122 is fixedly coupled to the output shaft 111 of the first motor 110 for connecting the cross-flow wind wheel 120 and the middle portion of the wind wheel. The plate 800 is provided with a shaft 810 facing the center of the end surface of the wind wheel 310. The wind wheel 310 is sleeved on the shaft 810, and the shaft 810 supports the wind wheel 310. When the first motor 110 is started, the output shaft 111 of the first motor 110 drives the cross flow wind wheel 120 and the wind wheel 310 to rotate through the sleeve 122. The utility model simultaneously drives the cross flow wind wheel 120 and the wind wheel 310 through a motor, has high efficiency, compact structure and convenient use.

One end of the wind wheel 310 is connected to the cross flow wind wheel 120 through the middle partition plate 800, and the other end surface opposite to the middle partition plate 800 is provided with an air inlet 3111, and the air inlet 311 passes through the curved pipe (not shown) Out) communicating with the second air intake frame assembly 600. Thus, the airflow entering by the second air inlet frame assembly 600 sequentially enters the wind wheel 310 through the elbow and the air inlet 311, and is discharged through the centrifugal volute 320. Since the elbow is disposed between the air inlet 311 and the second air inlet frame assembly 600, the second air inlet frame assembly 600 can be disposed one or more, and the position thereof can also be flexibly set. When the second air intake frame assembly 600 is one, it may be provided on the side casing (not shown) of the fuselage or on the rear casing 900. When there are a plurality of second air inlet frame assemblies 600, they are respectively disposed on two side casings of the fuselage, or several are disposed on the side casings, and several are disposed on the rear casing. The number of the second air inlet frame assembly 600 can be determined according to the performance requirements of the air conditioner. When a different number of the second air inlet frame assembly 600 or different position settings are selected, it is only necessary to increase the number of bends or bends as needed. The length can be achieved.

Preferably, in this embodiment, a power component (not shown) for driving the centrifugal volute 320 to rotate around the wind wheel is further disposed in the fuselage. The power assembly includes a second motor, a driving gear fixedly coupled to the output shaft of the second motor, and a driven gear that meshes with the outer wall of the centrifugal volute 320 and meshes with the driving gear. After the second motor is turned on, the output shaft of the second motor drives the driving gear to rotate, and the driven gear meshes with the driving gear to rotate, and the centrifugal volute 320 rotates accordingly. The centrifugal volute 320 has a volute tongue 321 , that is, an air outlet. When the centrifugal volute 320 is rotated at different angles by the driving gear, the volute tongue 321 is at a different position, so that the wind wheel 310 is axially blown out. The airflow has different airflow directions, that is, the wind sweep within a certain angle range, and has a remarkable effect on improving indoor comfort.

The wind from the volute 321 of the centrifugal volute 320 is discharged outside the body through the second air outlet 700. In this embodiment, the first air outlet 500 is located in the middle of the front housing 910 of the airframe, because the cross flow wind wheel 120 is a long cage, which is erected in the middle of the fuselage, the first air outlet 500 and the cross flow wind wheel 120. Correspondingly, the second air outlet 700 is disposed at a lower portion of the front housing 910 of the body.

Referring to Figure 6, a second embodiment of a split floor air conditioner according to the present invention is provided. This embodiment differs from the first embodiment only in that, in the present embodiment, the centrifugal duct 300 is provided at the top of the cross-flow duct 100. Correspondingly, the second air outlet 700 is disposed at an upper portion of the front housing 910 of the airframe, that is, at the top of the first air outlet 500. Other structures of this embodiment are the same as those of the first embodiment, and are not described herein.

In summary, the split floor air conditioner provided by the present invention combines a cross flow air passage and a centrifugal air passage to form a cross flow centrifugal air passage, so that one air conditioner has two air flow modes, and not only has a cross flow air passage. It has the advantages of high speed, low pressure, stable airflow and low noise. It also has the characteristics of large air volume, large pressure, long air supply distance and good disturbance effect. At the same time, the rotary centrifugal volute is also realized. The angle sweeps the air to make the indoor temperature distribution more uniform, which greatly improves the comfort of the air conditioner.

Referring to Figures 7 through 11, a partial structure of a split wall-mounted air conditioner provided by the present invention is shown. The split wall-mounted air conditioner includes a fuselage, a cross-flow duct 100 disposed in the fuselage, an evaporator 200, an electric control box 300, and a centrifugal duct 400. The cross flow duct 100 is combined with the centrifugal duct 400 to form a duct structure of the split wall type air conditioner. The cross flow duct 100 includes a first motor 110 , a cross flow wind wheel 120 driven by the first motor 110 , and a cross flow volute 130 disposed outside the cross flow wind wheel 120 . The first motor 110 has two opposite output shafts 111, and two cross-flow wind wheels 120 are respectively fixed to the two output shafts 111. There are also two centrifugal air passages 400, which are respectively disposed on the other end of each of the cross flow wind wheels 120 away from the first motor 110. The body is provided with a first air inlet frame assembly 900 that can supply air to the cross flow duct 100, and a first air outlet port 500 that can discharge the wind of the cross flow duct 100. A second air inlet frame assembly (not shown) for supplying air to each of the centrifugal air ducts 400 is disposed on the air body, and the second air outlet port 600 for discharging the wind of each of the centrifugal air passages 400 is disposed on the air body. Each of the centrifugal ducts 400 includes a wind wheel 410 coaxially connected to the corresponding cross flow wind wheel 120 and a centrifugal volute 420 disposed outside the wind wheel 410.

Referring to FIG. 7, two cross-flow wind wheels 120 and two wind wheels 410 are simultaneously rotated by the first motor 110, and under the action of the cross-flow volute 130 and the centrifugal volute 420, there are two different gases inside the fuselage. The way of flow. The first air inlet frame assembly 900 is disposed at the top of the fuselage, and the first air outlet 500 is disposed at a lower portion of the fuselage such that the airflow introduced by the first air intake frame assembly 900 is perpendicular to the axis of the cross flow wind wheel 120. That is, it flows in the radial direction of the impeller of the cross-flow wind wheel 120, penetrates the inside of the impeller, and is discharged from the other end in the radial direction. This wind flow is a cross flow or a cross flow flow, and finally is directly discharged from the first air outlet 500, and the air flow path is a straight line. . The cross flow wind wheel 120 has the characteristics of high rotation speed, small pressure, stable air flow and low noise, and the cooling and heating effect is mainly realized by the cross flow wind wheel 120 in the air conditioner. The airflow from the second air inlet frame assembly passes through the wind wheel in the centrifugal air passage 400, and finally is discharged through the centrifugal volute 420 and the second air outlet 600. This part of the airflow has a high wind speed and a high pressure, which acts as a disturbance to the air outlet of the cross-flow wind wheel 120, so that the air forms a convection, and the indoor temperature distribution is more uniform, and the comfort of the air conditioner is improved on the basis of the cooling and heating of the cross-flow wind wheel 120. Sex. At the same time, the centrifugal duct 400 is compact in structure and low in cost, and can be realized by slightly increasing the length in the case of the same cross section as the conventional air conditioner.

In this embodiment, the two wind wheels 410 are all cross-flow wind wheels, and the two wind wheels 410 are respectively connected to the corresponding cross-flow wind wheel 120 through the middle section dividing plate 700. Here, the wind wheel 410 can be considered as part of the cross flow wind wheel 120. Each of the cross-flow wind wheels 120 includes a plurality of sets of cross-flowing vane sets 121 connected end to end, and adjacent cross-flow vane sets 121 are connected by a mid-section dividing plate 700. The cross-flow vane group 121 at one end is connected to the first motor 110, and the cross-flow vane group 121 at the outermost end of the other end is a wind wheel. The centrifugal volute 420 is disposed on the outer side thereof, that is, the centrifugal duct 400 is formed. Of course, the wind wheel may also be a centrifugal wind wheel, and the centrifugal wind wheel is also fixed to one end of the cross flow wind wheel 120 through the middle partition plate 700. Whether the wind wheel is a centrifugal wind wheel or a cross flow wind wheel 120, and a centrifugal volute 420 is disposed on the outer side thereof, the flow direction of the air flow can be changed, the disturbance of the air outlet of the cross flow wind wheel 120 can be realized, the air can be convected, and the comfort of the air supply can be improved. Sex. When the centrifugal wind wheel rotates, centrifugal force is generated under the action of the impeller, and a negative pressure zone is formed at the center, so that the airflow is drawn into the wind wheel along the shaft, then diffused axially toward the periphery, and finally discharged through the centrifugal volute 420. In this process, the centrifugal wind wheel has a large air volume and a large pressure, so the disturbance effect is better, that is, the centrifugal wind wheel is combined with the centrifugal volute 420, which is more conducive to improving the comfort of the air conditioner.

Referring to FIG. 8, a sleeve 122 is disposed at one end of each of the cross-flow wind wheels 120 away from the wind wheel 410. The sleeve 122 is fixedly coupled to the output shaft 111 of the first motor 110 for connecting the middle portion of the cross-flow wind wheel 120 and the wind wheel 410. The partition plate 700 is provided with a shaft 710 facing the center of the end surface of the wind wheel 410. The wind wheel 410 is sleeved on the shaft 710, and the shaft 710 supports the wind wheel 410. When the first motor 110 is started, the output shaft 111 of the first motor 110 drives the two cross flow wind wheels 120 and the two wind wheels 410 to rotate through the sleeve 122. The utility model simultaneously drives the cross flow wind wheel 120 and the wind wheel 410 through a motor, has high efficiency, compact structure and convenient use.

One end of the wind wheel 410 is connected to the corresponding cross-flow wind wheel 120 by the middle partition plate 700, and the other end surface opposite to the middle partition plate 700 is provided with an air inlet 411, the air inlet 411 and the second air inlet frame. The components are connected. Thus, the airflow entering by the second air intake frame assembly enters the wind wheel 410 through the air inlet 411 and is discharged through the centrifugal volute 420. In this embodiment, the second air inlet frame assembly is two, which are respectively disposed on the left side surface and the right side surface of the air body, and communicate with the two air inlets 411 respectively.

Preferably, in the embodiment, a power component (not shown) for driving each centrifugal volute 420 around the wind wheel is further disposed in the fuselage. Each of the power components includes a second motor, a driving gear fixedly coupled to the output shaft of the second motor, and a driven gear provided on the outer wall of the centrifugal volute 420 and meshing with the driving gear. After the second motor is turned on, the output shaft of the second motor drives the driving gear to rotate, and the driven gear meshes with the driving gear to rotate, and the centrifugal volute 420 rotates accordingly. The centrifugal volute 420 has a volute tongue 421, that is, an air outlet. When the centrifugal volute 420 is rotated at different angles by the driving gear, the volute tongue 421 is at a different position, so that the wind wheel 410 is axially blown out. The airflow has different airflow directions, that is, the wind sweep within a certain angle range, and has a remarkable effect on improving indoor comfort.

The wind coming out of the volute tongue 421 of the centrifugal volute 420 is discharged outside the body through the second air outlet 600. In the present embodiment, the first air outlet 500 is located at a lower portion of the airframe. Since the cross flow wind wheel 120 is a long cage, the first air outlet 500 corresponds to the two cross flow wind wheels 120. The second air outlets 600 are two, corresponding to the two centrifugal air ducts 400, and are respectively disposed on the front housing 800 of the fuselage. Moreover, in this embodiment, the air deflector is one, and the three air outlets of the entire front casing 800 are penetrated.

Referring to Fig. 11, in the embodiment, the electric control box 300 is disposed on the back of the motor, so that the electric control board in the motor or the electric control box 300 can be directly taken out on the lower side of the body during the inspection.

In summary, the split-wall type air conditioner provided by the present invention has a duct structure in which a centrifugal air duct is added on the basis of the existing cross-flow duct, so that one air conditioner has two airflow modes, and not only the cross-flow wind is retained. The track itself has the advantages of high speed, small pressure, stable airflow and low noise. It also has the characteristics of large air volume, large pressure, long air supply distance and good disturbance effect. At the same time, the rotary centrifugal volute is also realized. Multi-angle sweeping makes the indoor temperature distribution more uniform, greatly improving the comfort of the air conditioner.

The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalents, and improvements made within the spirit and scope of the present invention should be included in the scope of the present invention. Inside.

Claims

An air duct structure includes a cross flow duct, the cross flow duct including a first electric motor, a cross flow wind wheel driven by the first electric motor, and a cross flow volute disposed outside the cross flow wind wheel, wherein The air duct structure further includes a centrifugal air passage disposed at at least one end of the cross flow air duct, the centrifugal air passage includes a wind wheel coaxially connected to the cross flow wind wheel, and a centrifugal device disposed outside the wind wheel Volute.
The air duct structure according to claim 1, wherein the wind wheel is a cross flow wind wheel or a centrifugal wind wheel, and the wind wheel and the cross flow wind wheel are integrally connected by a middle section partition plate.
The air duct structure according to claim 2, wherein a sleeve of the cross-flow wind wheel away from the wind wheel is provided with a sleeve, and the sleeve is fixedly connected with an output shaft of the first motor, The middle partition plate is provided with a shaft facing the center of the end surface of the wind wheel.
The air duct structure according to claim 1, wherein said first motor has two opposite output shafts, and said two cross-flow wind wheels are respectively fixed to said two output shafts, said centrifugal wind The track is two, and the wind wheels of the two centrifugal air ducts are respectively coaxially connected with the two cross flow wind wheels.
An air conditioner comprising a fuselage and an evaporator disposed in the fuselage, further comprising: a duct structure disposed in the fuselage, the air duct structure including a cross-flow duct and a device a centrifugal air duct at least one end of the cross flow duct, the cross flow air duct including a first electric motor, a cross flow wind wheel driven by the first electric motor, and a cross flow volute disposed outside the cross flow wind wheel The centrifugal air duct includes a wind wheel coaxially connected to the cross flow wind wheel and a centrifugal volute disposed outside the wind wheel;

The fuselage is provided with a first air inlet frame assembly that can supply air to the cross-flow air duct, and a first air outlet port that can discharge air flowing through the cross-flow air wheel; the fuselage is further provided with a second air inlet frame assembly that can supply air to the centrifugal air duct and a second air outlet port that can discharge air flowing through the wind wheel.
The air conditioner according to claim 5, wherein said air conditioner is a split floor type air conditioner.
The air conditioner according to claim 6, wherein the wind wheel is provided with an air inlet, and the air inlet communicates with the second air inlet frame assembly through an elbow.
The air conditioner according to claim 7, wherein the second air intake frame assembly is provided on the side case or the rear case of the body.
The split floor air conditioner according to claim 7, wherein the plurality of second air intake frame assemblies are respectively disposed on the side casing or the rear casing of the fuselage.
The air conditioner according to claim 7, wherein the first air outlet is provided in a middle portion of the front casing of the body, and the second air outlet is disposed at an upper portion or a lower portion of the front casing of the body.
The air conditioner according to claim 5, wherein said air conditioner is a split wall type air conditioner.
The air conditioner according to claim 11, wherein the wind wheel is provided with an air inlet, and the air inlet is in communication with the second air inlet frame assembly.
The air conditioner according to claim 11, wherein the two second air intake frame assemblies are respectively disposed on a left side surface and a right side surface of the body.
The air conditioner according to claim 11, wherein the second air outlets are two, and the left and right sides are respectively disposed on the front casing of the body.
The air conditioner according to claim 1, wherein said electric control box is provided at a back of said motor.
The air conditioner according to claim 1, wherein said body is further provided with a power assembly for driving said centrifugal volute around said wind wheel.
The air conditioner according to claim 10, wherein said power assembly comprises a second motor, a driving gear fixedly coupled to an output shaft of said second motor, and an outer wall of said centrifugal volute and said The driven gear meshed by the driving gear.