CN109458673B

CN109458673B - Air conditioner outdoor unit and air conditioning system

Info

Publication number: CN109458673B
Application number: CN201811470206.5A
Authority: CN
Inventors: 刘发申
Original assignee: GD Midea Air Conditioning Equipment Co Ltd
Current assignee: GD Midea Air Conditioning Equipment Co Ltd
Priority date: 2018-11-30
Filing date: 2018-11-30
Publication date: 2023-11-28
Anticipated expiration: 2038-11-30
Also published as: CN109458673A

Abstract

The invention discloses an air conditioner outdoor unit and an air conditioner system, wherein the air conditioner outdoor unit comprises a shell, an air outlet device and a heat exchanger, the shell is provided with a heat exchange air duct, and the air outlet device comprises: the air duct structure is provided with an air inlet and an air outlet, and a water diversion structure is formed on the air duct structure; the water dispersing structure is arranged on the inner wall surface of the air duct structure; the fan is arranged corresponding to the air duct structure, the fan introduces air flow from the air inlet, blows out the air flow from the air outlet, and enables the water diversion structure to form a negative pressure space so as to suck water into the water diversion structure; the air outlet device and the heat exchanger are sequentially arranged along the air flow direction of the heat exchange air duct, and the air outlet is arranged towards the heat exchanger. The technical scheme of the invention can improve the energy efficiency of the air conditioner outdoor unit.

Description

Air conditioner outdoor unit and air conditioning system

Technical Field

The invention relates to the technical field of air conditioning, in particular to an air conditioner outdoor unit and an air conditioning system.

Background

With the development and progress of technology, air treatment devices have gradually become an indispensable household appliance in people's daily life. How to improve the energy efficiency of the air treatment device has been a subject of great attention from researchers. In the existing air treatment device, a single air cooling mode is commonly adopted for a heat exchanger, so that the heat exchange efficiency is low, and the energy efficiency of the air treatment device is difficult to improve.

Disclosure of Invention

The application mainly aims to provide an air conditioner outdoor unit, which aims to improve the energy efficiency of the air conditioner outdoor unit.

In order to achieve the above object, the present application provides an outdoor unit of an air conditioner, including a housing, an air outlet device and a heat exchanger, wherein the housing is provided with a heat exchange air duct, and the air outlet device includes:

the air duct structure is provided with an air inlet and an air outlet, and a water diversion structure is formed on the air duct structure;

the water dispersing structure is arranged on the inner wall surface of the air duct structure; and

the fan is arranged corresponding to the air duct structure, introduces air flow from the air inlet, blows the air flow from the air outlet, and enables the water diversion structure to form a negative pressure space so as to suck water into the water diversion structure;

the air outlet device and the heat exchanger are sequentially arranged along the air flow direction of the heat exchange air duct, and the air outlet is arranged towards the heat exchanger.

In an embodiment of the application, the housing includes a bottom plate, a front panel disposed on the bottom plate, and two side plates disposed on two sides of the front panel, where the front panel and/or at least one of the side plates is provided with a heat exchange air duct inlet.

In an embodiment of the present application, the bottom plate is further provided with a middle partition plate, the middle partition plate is located between the two side plates, the middle partition plate is provided with an air outlet, the middle partition plate, the bottom plate and one side plate enclose to form an installation space, and the air outlet device is arranged in the installation space.

In an embodiment of the application, the air outlet device further includes a housing surrounding the air duct structure, and the housing is covered on the heat exchanger.

In an embodiment of the application, the air outlet device further comprises a bracket and a motor fixed on the bracket, and an output shaft of the motor extends into the air inlet and is in transmission connection with the fan.

In an embodiment of the application, the air duct structure is an air duct, and the air duct is provided with the air inlet and the air outlet.

In an embodiment of the present application, an inner wall surface of the air duct structure between the water dispersing structure and the air outlet forms a water supply area, and the air outlet device further includes a water supply structure, and the water supply structure is disposed adjacent to the air duct and is communicated with the water supply area so as to supply water to the water supply area.

In an embodiment of the application, the water supply structure includes a water receiving disc, the air duct is disposed in the water receiving disc, and at least part of the water supply area is not higher than the side wall of the water receiving disc.

In an embodiment of the application, the height difference between the lowest part of the water supply area and the bottom wall of the water receiving disc is not more than 6mm.

In an embodiment of the present application, the water dispersing structure is a flow blocking rib, the flow blocking rib is convexly arranged on an inner wall surface of the air duct, and extends along a circumferential direction of the air duct, the inner wall surface of the air duct between the flow blocking rib and the air outlet is formed into a water supply area, and an outer edge at a lowest position of the water supply area is formed into a water diversion structure.

In an embodiment of the present application, the flow blocking rib includes a water facing surface and a wind facing surface that are disposed opposite to each other, and the wind facing surface extends along the airflow direction of the air duct and toward the center of the air duct;

and/or a flow guide groove is arranged on one surface of the flow blocking rib, which faces the heat exchanger, and the flow guide groove is arranged in an extending way along the flow blocking rib;

and/or the height of the flow blocking rib protruding from the inner wall surface of the air duct is L, and L is more than or equal to 5mm and less than or equal to 17mm.

In an embodiment of the present application, the flow blocking rib includes a water dispersing end extending along the rotation direction of the axial flow wind wheel, and a connection line between the water dispersing end and the center of the air duct is higher than a horizontal plane where the center of the air duct is located.

In an embodiment of the present application, an included angle between a connecting line of the water dispersing end and the center of the air duct and a horizontal plane is defined as α, and 30 ° < α is less than or equal to 60 °.

In an embodiment of the present application, the flow blocking rib further includes a start end extending in a direction opposite to the rotation direction of the axial flow wind wheel, and an included angle β between a connection line between the start end and the center of the air duct and a vertical plane is not less than 10 °.

In an embodiment of the present application, an included angle β between a connection line between the start end and the center of the air duct and a vertical plane is not more than 45 °.

In an embodiment of the present application, a water falling area is further formed on an inner wall surface of the air duct, the water falling area and the water supply area are connected with each other along a circumferential direction of the air duct, and the water falling area is inclined towards the air inlet expansion type;

and/or the water supply area is obliquely arranged facing the air outlet.

The application also provides an air conditioning system which comprises an air conditioning indoor unit and an air conditioning outdoor unit. The air conditioner outdoor unit comprises a shell, an air outlet device and a heat exchanger, wherein the shell is provided with a heat exchange air duct, and the air outlet device comprises:

The duct structure in the present invention may be a part of an integral housing member, for example, formed inside the casing of the whole air conditioner when the air outlet device is applied to an outdoor unit of an air conditioner. It may be a cylindrical structure, a ring structure, a semi-annular structure, or the like, which are separately provided.

The fan rotates to form a negative pressure space at the water diversion structure, condensed water of the air conditioner indoor unit moves to the water diversion structure under the action of adsorption force, water is supplied to the air duct, the water in the air duct structure is driven to the end part of the water scattering structure, namely the water scattering end part, water drops are separated from the inner wall surface of the air duct structure and are sucked to the middle air area of the fan under the action of static pressure, and the fine microbeads are discretely atomized by the fan blades of the fan rotating at a high speed to be blown out to the heat exchanger in the heat exchange air duct so as to assist the heat exchanger to radiate and cool, and further the energy efficiency of the air conditioner outdoor unit with the air outlet device can be improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of an embodiment of an outdoor unit of an air conditioner according to the present invention;

fig. 2 is a schematic structural view of another embodiment of an outdoor unit of an air conditioner according to the present invention;

FIG. 3 is a partial sectional view of the air conditioner outdoor unit of FIG. 1;

FIG. 4 is a schematic view of the air outlet device of FIG. 1 with the axial flow wind wheel removed;

FIG. 5 is a schematic view of the structure of FIG. 4 from another perspective;

FIG. 6 is a cross-sectional view taken along line A-A of FIG. 5;

FIG. 7 is a partial view at VII in FIG. 6;

FIG. 8 is a partial view at VIII in FIG. 6;

FIG. 9 is a partial view at VIII in FIG. 6;

FIG. 10 is a cross-sectional view taken along line A-A of FIG. 5;

FIG. 11 is a partial view at XI in FIG. 10;

FIG. 12 is a cross-sectional view of FIG. 5 taken along a vertical plane;

FIG. 13 is a cross-sectional view of FIG. 5 taken along a vertical plane;

fig. 14 is a schematic structural view of another embodiment of an outdoor unit of an air conditioner according to the present invention, wherein a water receiving part is formed at the outer edge of the bottom of the air duct;

fig. 15 is a partial view at Z in fig. 14.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

In the present invention, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.

The present invention provides an air conditioner outdoor unit 1000, as shown in fig. 1 to 3, which is applied to an air conditioning system to improve energy efficiency of the air conditioning system.

In an embodiment of the present invention, the outdoor unit 1000 of the air conditioner includes a housing 500, an air outlet device 100 and a heat exchanger 200, wherein the housing 500 is provided with a heat exchange air duct, and the air outlet device 100 includes: the air duct structure 10, the air duct structure 10 is provided with an air inlet 12 and an air outlet 13, and a water diversion structure 14 is formed; the fan 20 is arranged corresponding to the air duct structure 10, the fan 20 introduces air flow from the air inlet 12, blows the air flow from the air outlet 13, and enables the water diversion structure 14 to form a negative pressure space so as to suck water into the water diversion structure 14; the air outlet device 100 and the heat exchanger 200 are sequentially arranged along the air flow direction of the heat exchange air duct, and the air outlet 13 is arranged towards the heat exchanger 200.

In the present invention, the wind path structure 10 may be a part of a housing member of the whole machine, for example, when the wind outlet device 100 is applied to the outdoor unit 1000 of the air conditioner, it is a structure formed in the housing of the whole machine and integrally formed with the housing; it may be a cylindrical structure, a ring structure, a semi-annular structure, or the like, which are separately provided.

The fan 20 rotates to form a negative pressure space at the water diversion structure 14 so as to generate adsorption force, condensed water of the indoor unit 100 of the air conditioner moves to the water diversion structure 14 under the action of the adsorption force so as to supply water in the air duct, so that the condensed water is conveniently sucked to a middle air area of the fan under the action of static pressure formed by rotation of the fan, and the condensed water is discretely atomized into tiny microbeads by the fan blade through the fan blade of the fan rotating at a high speed to be blown out to the heat exchanger 200 in the heat exchange air duct so as to assist the heat exchanger to dissipate heat and cool down, and further, the energy efficiency of the outdoor unit of the air conditioner with the air outlet device can be improved.

Meanwhile, in this embodiment, the air outlet device 100 and the heat exchanger 200 are sequentially arranged along the airflow direction of the heat exchange air duct, so that the air inlet quantity of the air outlet device 100 is ensured, and meanwhile, the air outlet 13 is arranged towards the heat exchanger 200, so that the water mist formed by the rotation of the fan is blown towards the heat exchanger to assist the heat exchanger to dissipate heat and cool.

Further, the housing 500 includes a bottom plate 510, a front panel disposed on the bottom plate 510, two side plates 530 disposed on two sides of the front panel, a heat exchange air duct inlet disposed on the front panel and/or at least one side plate 530, a back panel 520 disposed on the bottom plate 510, and a heat exchange air duct outlet disposed on the back panel 520. In this embodiment, the housing 500 further includes a top plate disposed opposite to the bottom plate 510, and the other ends of the front panel and the side plate 530 are connected to the top plate, and a back panel 520 disposed opposite to the front panel, and the front panel, the side plate 530, and the back panel are sequentially connected. In the embodiment, the fan is arranged to blow towards the heat exchanger, and the fan blades of the fan rotate at high speed are discretely atomized into tiny microbeads by the fan blades to blow out to the heat exchanger so as to assist the heat exchanger to dissipate heat and cool.

Further, the bottom plate 510 is further provided with a middle partition plate 540, the middle partition plate 540 is located between the two side plates 530, the middle partition plate 540 is provided with an air outlet 541, and the middle partition plate 540, the bottom plate 510 and one side plate 530 enclose to form an installation space, and the air outlet device 100 is arranged in the installation space. The air-conditioning outdoor unit 1000 of the present embodiment further includes a compressor assembly 600 disposed on the bottom plate 510, and a middle partition 540 is disposed to separate the compressor assembly 600 from the air outlet device. Because a large amount of heat is also generated in the working process of the compressor, in this embodiment, the two side plates 530 are both provided with the heat exchange air duct inlets, meanwhile, the middle partition plate 540 is provided with the air passing hole 541, the fan rotates to drive the air in the installation space to flow, and then the heat exchange air duct inlets and the heat exchange air duct outlets are used for air outlet.

In an embodiment of the present application, the air outlet device 100 further includes a casing 50 surrounding the air duct 310, and the casing 50 is covered on the heat exchanger 200. On the one hand, the air flow driven by the fan can be guided to be blown to the heat exchanger 200, so that the heat exchanger 200 is convenient to dissipate heat. On the other hand, water provided by the water supply structure can be prevented from splashing to other areas under the action of the fan.

Further, the air outlet device 100 further includes a bracket 300, where the bracket 300 is disposed on the outer side of the housing and faces the air inlet; the air outlet device further comprises a motor 400 fixed on the bracket 300, and an output shaft of the motor extends into the air inlet and is in transmission connection with the fan. The bracket 300 includes a motor cylinder 310 for mounting a motor, and a connection arm 320 provided at an outer wall surface of the motor cylinder 310, the other end of the connection arm 320 being connected with a housing to fix the motor cylinder 310, as shown in fig. 2, the outer wall surface of the motor cylinder 310 is further connected with a support plate 330, the support plate 330 is connected with a bottom plate 510, and the support plate 330 is further provided with a plurality of air holes to facilitate the flow of air. In practical application, the bracket can be connected with the housing or the shell, and the bracket can also be arranged at an included angle with the air inlet.

In an embodiment of the invention, the air outlet device further comprises a water dispersing structure, and the water dispersing structure is arranged on the inner wall surface of the air duct structure; the fan blows water out from the water dispersing end of the water dispersing structure through the air outlet. The water dispersing structure is arranged on the inner wall surface of the air duct structure, and can be ribs, a plate-shaped structure, a protruding structure and the like. The water dispersing structure can be integrated with the air duct structure, and can be arranged in a split mode. The inner wall surface of the air duct structure 10 between the water scattering structure 30 and the air outlet 13 forms a water supply area 11, and the outer edge of the lowest part of the water supply area 11 is formed as the water diversion structure 14. The water directing structure 14 may be a guiding plane (e.g., the water directing segment 14 hereinafter) that differs from the bottom wall of the water supplying structure (e.g., the water receiving pan 41 hereinafter) by no more than 6mm in height; or may be a guide slope, the difference in height between the lower end of the guide slope and the bottom wall of the water supply structure (such as a water receiving tray hereinafter) is not more than 6mm; it may also be a guide step surface, the lower end of which has a height difference of not more than 6mm from the bottom wall of the water supply structure (for example, a water receiving tray to be described later), and the height difference of adjacent steps in the guide step surface also has not more than 6mm.

The fan 20 rotates to drive water in the air duct structure 10 to the end part of the water dispersing structure 30, namely the water dispersing end, through the inner wall surface of the air duct, then water drops are separated from the inner wall surface of the air duct structure 10 and are sucked to the middle wind area of the fan 20 under the action of static pressure, and fine microbeads are discretely atomized by the fan blades through the fan blades of the fan 20 rotating at a high speed to be blown out and utilized. At this time, the heat exchanger is placed at the downwind position of the air outlet device 100, and the tiny microbeads which are discretely atomized into by the fan blades and blown out by the air outlet device 100 are sprayed on the surface of the heat exchanger, and then are gasified and evaporated, so that heat is absorbed, the heat exchange of the heat exchanger is assisted, the heat exchange efficiency and the energy efficiency of the heat exchanger are further improved, and the heat exchange efficiency and the energy efficiency of the air conditioner outdoor unit provided with the air outlet device 100 are improved.

It should be noted that, the air outlet device 100 generally provided will prevent water from entering the inner wall surface of the air duct structure 10, and avoid the adverse effect of splashing on the motor. The air outlet device 100 of the present invention is provided with the water diversion structure in the air duct structure 10, and by reasonable cooperation with the fan 20, the water diversion structure 14 can form a negative pressure space while air outlet is realized, so that water is sucked into the water diversion structure 14, and then the water is utilized (for example, the air is blown out from the air outlet 13 to exchange heat of the heat exchanger, thereby improving heat exchange efficiency and energy efficiency of the heat exchanger, and improving heat exchange efficiency and energy efficiency of the air conditioner outdoor unit).

The following specifically describes an example in which the air duct structure 10 is an air duct, the water dispersing structure 30 is a flow blocking rib, and the fan 20 includes an axial flow wind wheel:

as shown in fig. 1 to 13, in an embodiment of an air outlet device 100 of the present invention, the air outlet device 100 includes:

the air duct 10, the said air duct 10 has air inlet 12 and air outlet 13;

an axial flow wind wheel 20, wherein the axial flow wind wheel 20 is at least partially arranged in the air duct 10;

the flow blocking ribs 30 are convexly arranged on the inner wall surface of the air duct 10, extend along the circumferential direction of the air duct 10, and define the inner wall surface of the air duct 10 between the flow blocking ribs 30 and the air outlet 13 as a water supply area 11; and

a water supply structure 40, the water supply structure 40 being disposed adjacent to the air duct 10 and communicating with the water supply region 11 to supply water to the water supply region 11;

the flow blocking rib 30 includes a water dispersing end extending along the rotation direction of the axial flow wind wheel 20, and the water dispersing end is higher than the horizontal plane where the center of the air duct 10 is located. In this embodiment, the flow blocking rib comprises a water facing surface and a wind facing surface which are oppositely arranged, and the wind facing surface extends along the airflow direction of the air duct and towards the center of the air duct.

Referring to fig. 4 to 6, and referring to fig. 10, specifically, the air duct 10 has a cylindrical structure with two open ends, one open end is an air inlet 12, the other open end is an air outlet 13, and the axis of the air duct 10 is horizontally arranged, and the fan 20 is coaxially arranged with the air duct 10. The fan 20 is provided with an air inlet side and an air outlet side which are oppositely arranged, the air inlet side of the fan 20 extends into the air duct 10 from the air outlet 13 of the air duct 10 and is accommodated in the air duct 10, and the air outlet side of the fan 20 protrudes out of the air outlet 13 of the air duct 10. Further, the lowest part of the bottom inner wall surface of the air duct 10 is convexly provided with a flow blocking rib 30, and the flow blocking rib 30 is arranged along the circumferential direction of the air duct 10, that is, one end of the flow blocking rib 30 is arranged along the rotation direction of the fan 20, and the other end of the flow blocking rib is arranged along the opposite direction of the rotation direction of the fan 20. At this time, an inner wall surface of the duct 10 between the flow blocking rib 30 and the air outlet 13 is defined as a water supply region 11, the water supply structure 40 is disposed adjacent to the duct 10 and adjacent to the water supply region 11, and the water supply structure 40 communicates with the water supply region 11 to supply water droplets to the water supply region 11.

Thus, when the fan 20 rotates at a high speed, the air flow will flow at a high speed through the air inlet 12 of the duct 10 to the air outlet 13, and can be blown to the heat exchanger 200 of the air conditioner outdoor unit 1000. Because the air on the air inlet side of the air inlet 12 is continuously conveyed to the air outlet 13 side of the air duct 10 by the fan, a negative pressure space is formed on the air inlet side of the air inlet 12 opposite to the air outlet 13 side, at the moment, pressure difference is formed on two sides of water drops located in the water supply area 11, and the water drops move from the air outlet 13 side to the air inlet 12 side to form backflow. Further, the water drops in the water supply area 11 are accelerated by the fan blades of the fan 20 rotating at high speed, then quickly climb upwards along the inner wall surface of the air duct 10 and along the upstream surface of the flow blocking rib 30, and then separate from the inner wall surface of the air duct 10 and the upstream surface of the flow blocking rib 30 under the action of inertia to fly to the high point B (located in the air duct 10). Further, the water drop at the high point B (located in the air duct 10) is sucked to the fan 20 under the action of static pressure, and is discretely atomized into fine micro-beads by the fan blade of the fan 20 rotating at high speed, and blown to the high-temperature heat exchanger 200 for gasification and evaporation, so as to assist the heat exchanger 200 in heat dissipation and cooling, and further increase the water cooling function while cooling the heat exchanger 200 by air cooling, thereby improving the heat exchange efficiency of the heat exchanger 200 and improving the energy efficiency of the air conditioner outdoor unit 1000 with the blowing structure.

Of course, it is understood that the flow blocking ribs 30 may be connected end to form a ring shape, resulting in a flow blocking ring.

Referring to fig. 10 and 11, in an embodiment of the present application, the flow blocking rib 30 includes a main flow guiding section 35 and an auxiliary flow guiding section 37, the main flow guiding section 35 has two opposite sides, one side of the main flow guiding section 35 is connected to the inner wall surface of the air duct 10, the other side extends from the air inlet 12 to the air outlet 13, and the auxiliary flow guiding section 37 extends along the radial direction of the air duct 10. In this embodiment, one side of the flow blocking rib 30 is connected to the inner wall of the air duct 10, and the other side extends from the air inlet 12 to the air outlet 13, so that the flow of air in the air duct 10 is guided, noise generated by friction between the air entering the air duct 10 and the side of the air inlet 12 of the air duct 10 is reduced, loss of wind energy of air inlet is reduced, wind resistance is reduced, thus improving blowing capacity of a fan to fine beads, and further improving heat exchange efficiency of the heat exchanger 200 and energy efficiency of the air conditioner outdoor unit 1000. Because the air duct 10 is in a ring shape, the auxiliary guide section 37 extends along the radial direction of the air duct 10 to uniformly distribute the stress of the main guide section 35, so that the stability of the flow blocking rib 30 is improved.

Referring to fig. 12 and 13, in an embodiment of the present application, the water dispersing end of the flow blocking rib 30 extending along the rotation direction of the axial flow wind wheel 20 is higher than the horizontal plane where the center of the air duct 10 is located, so that the water drops can be accelerated to a position higher than the horizontal plane where the center of the air duct 10 is located along the inner wall surface of the air duct 10 and the water facing surface 30a of the flow blocking rib 30, so that the water drops obtain greater kinetic energy to reach a position higher than the horizontal plane where the center of the air duct 10 is located, and then are discretely atomized by the fan blades, and then sprayed and covered on the heat exchanger 200 in a wider range, so that the heat exchange efficiency of the heat exchanger 200 is further improved, and the energy efficiency of the heat exchanger 200 and the air conditioner outdoor unit 1000 can be further improved.

In an embodiment of the air outlet device 100 of the present application, an included angle α between a line connecting the water dispersing end and the center of the air duct 10 and a horizontal plane is defined to be 0 ° < α+.ltoreq.60°. Therefore, the included angle alpha between the connecting line of the water dispersing end of the flow blocking rib 30 and the center of the air duct 10 and the horizontal plane can be effectively controlled within the range of not more than 60 degrees, and the phenomenon that water drops are separated from the inner wall surface of the air duct 10 due to the fact that the water dispersing end of the flow blocking rib 30 is too high (the included angle alpha is too large) is avoided, so that the range of the spray coverage heat exchanger 200 after the water drops are scattered and atomized is obviously offset, namely the range of the spray coverage heat exchanger 200 after the water drops are scattered and atomized is obviously reduced, and the better heat exchange efficiency and energy efficiency of the heat exchanger 200 are ensured. It will be appreciated that in practical applications, the included angle α may be 1 °, 2 °, 3 °, 5 °, 10 °, 20 °, 40 °, or 60 °.

Further, the included angle alpha between the connecting line of the water dispersing end and the center of the air duct 10 and the horizontal plane is not less than 30 degrees, namely alpha is not less than 30 degrees. Therefore, the included angle alpha between the connecting line of the water dispersing end of the flow blocking rib 30 and the center of the air duct 10 and the horizontal plane can be further controlled within the range of not less than 30 degrees, so that water drops are prevented from being separated from the inner wall surface of the air duct 10 too early due to the fact that the water dispersing end of the flow blocking rib 30 is too low (the included angle alpha is too small), the range of the spray coverage heat exchanger 200 after discrete atomization of water drops is prevented from being obviously downwards deflected, namely the range of the spray coverage heat exchanger 200 after discrete atomization of water drops is prevented from being obviously reduced, and the heat exchange efficiency and the energy efficiency of the heat exchanger 200 are guaranteed. It will be appreciated that in practical applications, the included angle α may be selected from 30 °, 31 °, 32 °, 35 °, 40 °, 50 °, or 60 °.

Referring to fig. 12 and 13, in an embodiment of the air outlet device 100 of the present invention, the flow blocking rib 30 further includes a start end extending along a direction opposite to the rotation direction of the axial flow wind wheel 20.

In this way, by using the arrangement that the starting point end extends along the opposite direction of the rotation direction of the axial flow wind wheel 20, the amount of water drops blocked by the flow blocking ribs 30 can be increased, the possibility that water drops overflow to the other side or splash everywhere by bypassing the flow blocking ribs 30 is reduced, so that more water drops are accelerated to finish the processes of climbing, suction, discrete atomization, spraying coverage, evaporation gasification and the like, namely, more water drops are used for heat dissipation of the heat exchanger 200, the heat exchange efficiency of the heat exchanger 200 is further improved, and the energy efficiency of the heat exchanger 200 and the air conditioner outdoor unit 1000 is further improved.

Further, the flow blocking ribs 30 are distributed on the inner wall surface of the air duct 10 in the opposite direction along the rotation direction of the axial flow wind wheel 20 from the vertical surface where the axis of the air duct 10 is located, at most in the range of 0 ° to 45 °, that is, the included angle β between the connection line of the starting point end and the center of the air duct 10 and the vertical surface is not more than 45 °, that is, β is not more than 45 °. In this way, the included angle β between the connecting line of the starting end of the flow blocking rib 30 and the center of the air duct 10 and the vertical plane can be effectively controlled within the range of not more than 45 °, so as to avoid the air volume significantly reduced due to the excessively high starting end of the flow blocking rib 30 (the excessively large included angle β), and avoid the resource waste and the cost increase caused by the non-blocking of water drops near the starting end of the flow blocking rib 30 due to the excessively high starting end of the flow blocking rib 30 (the excessively large included angle β). It will be appreciated that in practical applications, the included angle β may be 1 °, 2 °, 3 °, 5 °, 10 °, 20 °, 40 °, or 45 °.

Further, the flow blocking ribs 30 are distributed on the inner wall surface of the air duct 10 from the vertical surface where the axis of the air duct 10 is located in the opposite direction along the rotation direction of the axial flow wind wheel 20 at least in the range of 0 ° to 10 °, that is, the included angle β between the connection line of the starting point end and the center of the air duct 10 and the vertical surface is not less than 10 °, that is, β is not less than 10 °. In this way, the included angle β between the connection line between the starting end of the flow blocking rib 30 and the center of the air duct 10 and the vertical surface can be further controlled within the range of not less than 10 ° so that most of the water drops are blocked by the flow blocking rib 30, the possibility that the water drops bypass the flow blocking rib 30 and overflow to the other side or splash everywhere is further reduced, and thus more water drops are accelerated to complete the processes of climbing, inhalation, discrete atomization, spraying coverage, evaporation gasification and the like, i.e. more water drops are used for heat dissipation of the heat exchanger 200, so that the heat exchange efficiency of the heat exchanger 200 is further improved, and the energy efficiency of the heat exchanger 200 and the air conditioner outdoor unit 1000 is further improved. It will be appreciated that in practical applications, the included angle β may be 10 °, 11 °, 12 °, 15 °, 20 °, 40 °, or 45 °.

Referring to fig. 8 and 9, in an embodiment of the present application, the height L of the flow blocking rib 30 in the radial direction of the air duct 10 is set within the range of 5mm < L < 17mm, the maximum diameter of the water drops formed by the water drops under the action of surface tension is 4mm to 5mm, when the height of the flow blocking rib 30 is lower than 5mm, the height L of the flow blocking rib 30 protruding from the inner wall surface of the air duct 10 is lower than the maximum diameter (4 mm to 5 mm) of the water drops formed under the action of surface tension, thereby causing the water drops to "jump" the flow blocking rib 30 to lose and avoiding the decrease of the heat exchange efficiency of the heat exchanger 200 caused thereby; when the height of the flow blocking rib 30 is greater than 17mm, the flow blocking rib 30 is too high, so that the wind passing through the air duct 10 is blocked, the wind energy is reduced, water drops can not be blown to the heat exchanger 200 by the axial flow wind wheel 20 well, and the production and processing cost is increased by the axial flow wind wheel 20 with too high height, so that the use of users is inconvenient. When the height L of the flow blocking rib 30 is set within the range that L is less than or equal to 5mm and less than or equal to 17mm, the height L of the flow blocking rib 30 protruding from the inner wall surface of the air duct 10 is not lower than the maximum diameter (4 mm to 5 mm) of water drops which can be formed under the action of surface tension, so that the water drops are prevented from "crossing over" the flow blocking rib 30 to lose heat exchange efficiency of the heat exchanger 200, the reduction of wind energy passing through the air duct 10 is prevented well, the production and processing cost is guaranteed, the blowing capability of the fan to tiny microbeads is improved, and the heat exchange efficiency of the heat exchanger 200 and the energy efficiency of the air conditioner outdoor unit 1000 are further improved. It can be understood that the height L of the flow blocking rib 30 can be set to 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm or 16mm, etc., so that the height L of the flow blocking rib 30 protruding from the inner wall surface of the air duct 10 is not lower than the maximum diameter (4 mm to 5 mm) of water drops which can be formed under the action of surface tension, thereby avoiding the water drops from "crossing over" the flow blocking rib 30 and losing, avoiding the decrease of the heat exchange efficiency of the heat exchanger 200 caused thereby, better preventing the decrease of wind energy passing through the air duct 10, ensuring the production and processing costs, improving the blowing capability of the fan on fine micro beads, and further improving the heat exchange efficiency of the heat exchanger 200 and the energy efficiency of the air conditioner outdoor unit 1000.

In an embodiment of the present application, the height of the main guide section 35 in the radial direction of the air duct 10 is d, the height of the auxiliary guide section 37 in the radial direction of the air duct 10 is l, and the sum of d and l has the following value range: d+l is more than or equal to 5mm and less than or equal to 17mm. The main guide section 35 is mainly used for guiding condensed water in the water receiving tray 41, so that the condensed water can climb along the air guide tube 10 and be blown open by the axial flow wind wheel 20; and the main guide section 35 is also used for guiding the air flow flowing into the air duct 10 from the air inlet 12, so as to ensure that the air duct 10 has better air inlet quantity. The auxiliary guide section 37 is mainly used for reinforcing the structure of the main guide section 35, and because the main guide section 35 extends along the inner wall surface of the air duct 10, the end part of the main guide section, which is away from the air duct 10, is arranged at the free end, so that the main guide section 35 is easily stressed to influence the stability of the structure, and the auxiliary guide section 37 is arranged to be convenient for leaving processing allowance when the main guide section 35 is cast and forged, so that the water guide and air guide effect of the flow blocking ribs 30 caused by the processing errors is prevented from being reduced.

In one embodiment of the present application, d is the length from the side of the main guide section 35 connected to the inner wall surface of the air duct 10 to the connection between the main guide section 35 and the auxiliary guide section 37 in the radial direction of the air duct 10; the length from the free end of the auxiliary guide section 37 to the connection position of the main guide section 35 and the auxiliary guide section 37 in the radial direction of the air duct 10; setting the value range of the sum of d and l at: the water in the water supply structure 40 can enter the water supply area 11 from the water supply structure 40 under the combined action of the surface tension of liquid, the centrifugal action of the axial flow wind wheel 20 and the siphon effect when the water is placed still, the d+l is less than or equal to 5mm and less than or equal to 17mm, the wind energy passing through the air duct 10 is well prevented from being reduced, the production and processing cost is ensured, the blowing capacity of the fan to tiny microbeads is improved, and the heat exchange efficiency of the heat exchanger 200 and the energy efficiency of the air conditioner outdoor unit 1000 are further improved.

Referring to fig. 9, in an embodiment of the present application, the value range of d is: d is more than or equal to 5mm and less than or equal to 12mm; because the maximum diameter of the water drops which can be formed by the water drops under the action of the surface tension is 4mm to 5mm, when the height of the flow blocking rib 30 is lower than 5mm, the height of the flow blocking rib 30 protruding from the inner wall surface of the air duct 10 is lower than the maximum diameter (4 mm to 5 mm) of the water drops which can be formed under the action of the surface tension, so that the water drops are prevented from being lost by 'crossing over' the flow blocking rib 30, the reduction of the heat exchange efficiency of the heat exchanger 200 caused by the water drops is avoided, the water drops cannot be blown to the heat exchanger 200 by the axial flow wind wheel 20, when the height of the main flow guide section 35 is higher than 12mm, the height of the main flow guide section 35 is too high, the air passing through the air duct 10 is blocked, the wind energy is reduced, the water drops cannot be blown to the heat exchanger 200 by the axial flow wind wheel 20 well, the production and processing cost is increased by the high axial flow wind wheel 20, and the use of users is inconvenient. When the height d of the main guide section 35 is set within the range of not less than 5mm and not more than 12mm, water located in the water supply structure 40 can enter the water supply area 11 from the water supply structure 40 under the combined action of the surface tension of liquid, the centrifugal effect and the siphon effect of the axial flow wind wheel 20 when the water supply structure is placed still, the wind energy passing through the air duct 10 is well prevented from being reduced, the production and processing cost is ensured, the blowing capability of the fan on tiny microbeads is improved, and the heat exchange efficiency of the heat exchanger 200 and the energy efficiency of the air conditioner outdoor unit 1000 are further improved. It will be appreciated that the height d of the main flow guiding section 35 may be set to 6mm, 7mm, 8mm, 9mm, 10mm or 11mm, so that the height H of the flow blocking rib 30 protruding from the inner wall surface of the air duct 10 is not lower than the maximum diameter (4 mm to 5 mm) of the water drop formed under the action of the surface tension, thereby avoiding the water drop from "crossing over" the flow blocking rib 30 and losing the heat exchanging efficiency of the heat exchanger 200, and better preventing the reduction of wind energy passing through the air duct 10, ensuring the production and processing costs, improving the blowing capability of the fan on the tiny micro beads, and further improving the heat exchanging efficiency of the heat exchanger 200 and the energy efficiency of the air conditioner outdoor unit 1000.

In an embodiment of the present application, the value range of l is: l is more than 0mm and less than or equal to 5mm. Because the auxiliary diversion section 37 has the functions of increasing the strength of the flow blocking ribs 30 and providing the allowance for processing the main diversion section 35, the auxiliary diversion section 37 is set to be higher than 0, but the excessively high auxiliary diversion section 37 can reduce the air inlet quantity of the air guide ring, reduce the wind energy, further reduce the blowing-off of the condensed water by the axial flow wind wheel 20, and is not beneficial to improving the efficiency of the heat exchanger 200. When the value range of l is: when l is more than 0mm and less than or equal to 5mm, on one hand, the air inlet quantity of the air duct 10 can be ensured, and on the other hand, the strength of the flow blocking ribs 30 can be ensured, so that the allowance is conveniently provided for processing the main flow guiding section 35. It can be understood that the value of l can be 1mm, 2mm, 3mm, 4mm, etc., which can ensure the air intake of the air duct 10 and the strength of the flow blocking ribs 30, so as to provide a margin for processing the main flow guiding section 35.

Referring to fig. 5 to 9, in an embodiment of the present application, the air inlet 12 includes an air inlet side and an air outlet side, and the main guide section 35 includes a back surface 30b located on the air inlet side, and the back surface 30b is disposed in an arc shape curved toward the air inlet side. The back surface 30b is used for facing the wind, and the back surface 30b is arranged in an arc shape, so that the air flow blown into the air duct 10 is smoothly guided, the energy loss of the air outlet is reduced, and the air flow can be guided to deviate from the middle part of the air duct 10 under the condition that the energy of the air outlet is not reduced. And the air flow can be smoothly transited, the air flow is prevented from being impacted on the side surface of the air duct 10, the air flow noise is reduced, and the user experience is improved.

In one embodiment of the present application, the cross section of the back surface 30b in the radial direction of the air duct 10 forms an arc segment, and the central angle of the arc segment is 30 degrees to 150 degrees. With this arrangement, the airflow can be optimally guided due to the smooth transition of the back surface 30 b. When the central angle is smaller than 30 degrees, the air flow can flow out from the back surface 30b when the air flow cannot be transited on the back surface 30b, and the transitional effect of the back surface 30b can be reduced greatly, so that the energy loss of the air flow is larger and noise is generated; when the central angle is larger than 150 degrees, the air flow can flow out from the back surface 30b after too much transition on the back surface 30b, and the transition effect of the back surface 30b can be reduced greatly, so that the energy loss of the air flow is larger and noise is generated. When the angle of the central angle is 30-150 degrees, the transition of the air flow on the back surface 30b is moderate, the air flow transition can be effectively ensured, and the energy loss of the air flow is small. It can be understood that the central angle can be 40 degrees, 50 degrees, 60 degrees, 70 degrees, 80 degrees, 90 degrees, 100 degrees, 120 degrees, 130 degrees, 140 degrees and the like, so that the transition of the air flow can be effectively ensured, and the energy loss of the air flow is small. And the radius of the arc section can be set according to actual needs, so long as the transition of the air flow can be effectively ensured, and the energy loss of the air flow is small.

In one embodiment of the present application, the main guide section 35 includes a back surface 30b located on the air inlet side, and the back surface 30b is bent and extended toward the air inlet side. The back surface 30b is arranged in a substantially herringbone shape, and it is understood that the bending sections of the back surface 30b that are bent with each other should have a larger included angle when the number of the bending sections is smaller; when the number of the bending sections is large, the adjacent bending sections should have a small included angle, so that the air flow blown into the air duct 10 is smoothly guided, the energy loss of the air outlet is reduced, and the air flow can be guided to deviate from the middle part of the air duct 10 under the condition that the energy of the air outlet is not reduced. And the air flow can be smoothly transited, the air flow is prevented from being impacted on the side surface of the air duct 10, the air flow noise is reduced, and the user experience is improved.

Referring to fig. 8, in an embodiment of the present application, the flow blocking rib 30 further includes an upstream surface 30a facing away from the upstream surface 30b, the upstream surface 30a is provided with a flow guiding groove 31, and the flow guiding groove 31 is disposed to extend along an extending direction of the flow blocking rib 30. The upstream surface 30a is provided to facilitate rapid ascent of water droplets from the water supply structure 40 in the direction of rotation of the wind wheel, and the diversion trench 31 is provided to provide a moving track for water supplied from the water supply structure 40 from the water supply area 11, so as to guide the water to a suitable flying-out position.

In one embodiment of the present application, the back surface 30b is smoothly connected to the outer surface of the air duct 10. Because the air flow is easy to generate howling in a tiny gap, the transition surface (the back surface 30b and the outer side surface of the air duct 10) is smoothly transited, so that the transition of air is smooth, the energy loss of the air flow entering the air duct 10 is reduced, and the noise is effectively reduced. It will be appreciated that, in order to improve smoothness, the cambered surface may be formed by running in by a grinding machine or by die casting by a die casting machine.

Referring to fig. 9, in an embodiment of the present application, the auxiliary air guiding section 37 extends along a radial direction of the air guiding duct 10 to form a radial plane, and a maximum width of the main air guiding section 35 from the radial plane in an axial direction of the air guiding ring is w, where a range of values of the maximum width w is: w is more than or equal to 3mm and less than or equal to 8mm. The maximum width is the distance between the highest point of the main guide section 35 and the radial plane formed by the auxiliary guide section 37 along the axial direction of the air guide ring, when the maximum width w is larger than 8mm, the projection of the main guide section 35 is excessively high, and the windward angle of the main guide section 35 is excessively large when the air flow enters the air guide cylinder 10, so that noise is generated; when the maximum width w is smaller than 3mm, the cambered surface of the main air guide section 35 when the air flow enters the air guide cylinder 10 is too small, which is not beneficial to air guide, and when the maximum width w has the following range: when w is more than or equal to 3mm and less than or equal to 8mm, on one hand, the noise is high when the air flow enters the air duct 10, and on the other hand, the air guide can be facilitated, so that condensed water can be conveniently blown open, and the heat exchange efficiency of the heat exchanger 200 is improved. It can be understood that the value of the maximum width w may be 4mm, 5mm, 6mm or 7mm, which can prevent the noise from being large when the air flow enters the air duct 10 and is beneficial to air guiding.

Referring to fig. 8, in an embodiment of the present application, a distance s from the back surface 30b to the upstream surface 30a is: s is more than or equal to 2mm and less than or equal to 5mm. The distance between the back surface 30b and the upstream surface 30a is the thickness of the flow blocking rib 30, when the thickness of the flow blocking rib 30 is lower than 2mm, the flow blocking rib 30 swings when the fan rotates, so that air is not beneficial to flow guiding, when the thickness of the flow blocking rib 30 is greater than 5mm, the forging cost of the flow blocking rib 30 is increased, the back surface 30b of the flow blocking rib 30 is not beneficial to bending, and when the thickness of the flow blocking rib 30 is between 2mm and 5mm, the flow blocking rib 30 is convenient to guide air and water, and the forging cost is easy to reduce. It can be appreciated that the thickness of the flow blocking rib 30 can be 2.5mm, 3mm, 3.5mm, 4mm or 4.5mm, etc., which is convenient for guiding air and water and reducing forging cost.

In an embodiment of the present application, the flow blocking rib 30 is integrally formed with or detachably connected to the air duct 10; and/or, the auxiliary diversion section 37 is integrally formed with or detachably connected with the flow blocking rib 30.

The integrally formed arrangement ensures that the connection gap between the flow blocking rib 30 and the air duct 10 does not exist, so that the energy loss of the air outlet is reduced optimally, and the air flow can be guided to deviate from the middle part of the air duct 10 under the condition that the energy of the air outlet is not reduced. Specifically, in the process of producing the air duct 10, a section of forgeable part is reserved on the outer side surface of the air duct 10, and then the section is forged and bent to enable the section to have a certain radian. And, the arrangement of the detachable connection is convenient for replacing the damaged flow blocking ribs 30, and the high energy efficiency effect of the air conditioner outdoor unit 200 is maintained.

As shown in fig. 1 to 5, in an embodiment of the air outlet device of the present invention, a water ring 60 is disposed around the outer edge of the air outlet side, and the bottom of the water ring 60 extends into the water receiving tray.

Specifically, the water ring 60 is generally in a ring structure, the air outlet side of the axial flow wind wheel 20 is located at a hollowed position in the middle of the water ring 60, and the inner edge of the water ring 60 is disposed around the air outlet side of the axial flow wind wheel 20 and fixedly connected with each fan blade of the axial flow wind wheel 20, so that the water ring 60 and the axial flow wind wheel 20 are coaxially disposed. At this time, the water ring 60 is vertically disposed, and the lowest position of the inner edge of the bottom thereof is not higher than the sidewall of the water pan.

In this way, when the water ring 60 rotates along with the axial flow wind wheel 20, the inner edge of the bottom of the water ring 60 will take up the water in the water receiving tray, and this water will be blown to the heat exchanger 200 by the axial flow wind wheel 20, and further "water cooling" is performed to the heat exchanger 200, so as to improve the heat exchange efficiency and energy efficiency of the heat exchanger 200.

As shown in FIGS. 1 to 3, in an embodiment of the air outlet device of the present invention, the distance E between the water ring 60 and the air outlet 13 is defined as E, and E is 10mm < 20mm. Thus, on one hand, by controlling the distance E between the water-beating ring 60 and the air outlet 13 to be not less than 10mm, the safety distance between the water-beating ring 60 and the air duct 10 can be ensured, so that the possibility that the water-beating ring 60 collides or extrudes with the air duct 10 due to the axial displacement of the air duct 10 along the clearance matched with the structure when the water-beating ring 60 runs together with the axial flow wind wheel 20 is reduced. That is, if the distance E between the water ring 60 and the air outlet 13 is less than 10mm, the probability of collision or extrusion between the water ring 60 and the air duct 10 due to the axial displacement of the air duct 10 along the clearance of the structural fit when the water ring 60 and the axial flow wind wheel 20 are operated together will greatly increase, thereby affecting the operation of the axial flow wind wheel 20 and the water ring 60 and damaging the stability and reliability of the air outlet device 100. On the other hand, by controlling the distance E between the water ring 60 and the air outlet 13 to be not more than 20mm, the water carried by the water ring 60 can be ensured to obtain larger wind power and blow to the heat exchanger 200, so that the water can cover a wider range on the heat exchanger 200, and the heat exchange efficiency and energy efficiency of the heat exchanger 200 are improved. It will be appreciated that in practice, the distance E between the water ring 60 and the air outlet 13 may be 10mm, 11mm, 12mm, 13mm, 15mm, 18mm, 19mm, 20mm, etc.

As shown in fig. 1 to 3 and 14 and 15, in an embodiment of the present invention, the water supply structure 40 includes a water receiving tray 41, and the water receiving tray 41 is horizontally disposed for receiving condensed water. The air duct 10 is disposed in the water receiving tray 41, and at least a portion of the water supply area 11 is not higher than the side wall of the water receiving tray 41. In this way, when the axial flow wind wheel 20 rotates at a high speed, the condensed water in the water receiving tray 41 "climbs" the water supply area 11 on the inner wall surface of the wind guiding ring due to the action of the surface tension of the liquid, the centrifugal action and the siphon effect of the axial flow wind wheel 20. Thus, the condensed water (for example, the condensed water generated in the cooling state of the indoor-side heat exchanger 200) in the air-conditioning outdoor unit 1000 is reused. And, the condensed water has lower temperature and more sufficient cold energy, and is used for 'water cooling' the heat exchanger 200, so that the heat exchange efficiency of the heat exchanger 200 is higher, the heat exchange efficiency of the heat exchanger 200 is further improved, and the energy efficiency of the air conditioner outdoor unit 1000 is improved. Further, the inner wall surface of the air duct 10 forms a water diversion section 14 at the position of the water supply area 11 adjacent to the water receiving disc, and the height difference between the lowest position of the water diversion section 14 and the bottom wall of the water receiving disc is not more than 6mm.

In this embodiment, the heat exchanger 200 of the outdoor unit 1000 is disposed in the water pan, and condensed water generated during the operation of the heat exchanger 200 directly flows into the water pan, so as to avoid providing a water source in the air outlet device 100. Of course, a piping structure may be used to collect the condensate, after which the water source is directed to the water intake section 14. Or a water tank is provided in the water receiving tray, and water in the water tank flows into the water receiving tray to supply water to the water supply area 11. Of course, in other embodiments, the water supply structure 40 may be a pipe structure, which directly directs water droplets to the water supply area 11.

Because the maximum diameter of the water drop that water can form is 4mm to 5mm under the effect of surface tension, in order to be convenient for less water on the water collector can climb to the water supply area 11 of the air duct, the height difference between the lowest position of the water diversion section 14 and the bottom wall of the water collector is not more than 6mm, and in practical application, 1mm, 2mm, 3mm, 4mm, 5mm or 6mm can be selected as the height difference. Meanwhile, the height difference between the highest position of the water diversion section 14 and the bottom wall of the water receiving tray is not more than 6mm, so that the water diversion width of the water diversion section 14 is increased, and more water can climb to the water supply area 11 of the air duct 10 when the water in the water receiving tray is less. In practical applications the water diverting section 14 may be arranged as a straight line or as an arc.

Further, as shown in fig. 2 to 4, a water collecting tank 411 is concavely formed on a bottom wall of the water collecting tray 41 located at the air outlet side of the air outlet 13, and the water collecting tank 411 is disposed adjacent to the water diversion section 14. The water collecting tank 411 is used to collect condensed water. Thereby facilitating the water supply to the water supply area 11 under the action of the axial flow wind wheel 20.

Referring to fig. 14 and 15, in another embodiment of the present invention, in order to facilitate the water in the water receiving tray 41 to "climb" to the water supply area 11, the outer edge of the water supply area 11 is formed with a water receiving part 15 toward the water collecting sump 411. The water receiving portion 15 is disposed adjacent to the water diversion section 14 and extends in a direction away from the air duct 10 and into the water collection tank 411. The water receiving part 15 can be of a sunken step structure, and the height difference of two adjacent step surfaces is not more than 6mm. In this embodiment, the water receiving portion 15 is provided to achieve a drainage effect for the water in the water collection tank 411. So that when less water is in the water collecting tank 411, the water climbs to the water receiving part 15 under the negative pressure formed by the axial flow wind wheel 20, and then enters the water supply area 11 from the water diversion section, thereby realizing water supply to the water supply area 11.

Of course, in other embodiments, the water receiving portion 15 may be a drainage surface, which may be a plane, an inclined surface, an arc surface, or a stepped surface with a height difference between adjacent steps of not more than 6 mm. At this time, the upper surface of the water receiving portion 15 is connected to the water guide section so that water smoothly enters the water supply region 11.

It can be understood that in practical application, the drainage surface may be set as a plane, an inclined plane, an arc surface, or a step surface with a height difference between adjacent steps not exceeding 6mm, or may be set as a plane-before-inclined plane scheme, or a plane-before-arc surface scheme, or a step-before-plane scheme, or a multi-step plane scheme, and the scheme may be applied to a situation where the depth of the water collection tank 411 is deeper.

In order to facilitate the condensation water to climb to the water diversion section 14 when the water amount in the water receiving tray is small, in one embodiment of the present application, the water supply area 11 of the air duct 10 is provided with a hydrophilic layer (not shown). Since the hydrophilic layer has a hydrophilic group, the hydrophilic layer can generate an adsorption force to water so that the water climbs to the water intake section 14. In this embodiment, the hydrophilic layer may be made of polyurethane or polyacrylic acid. Polyurethane or polypropylene and the like can be coated on the water diversion section 14, and the thickness value of the coating is 0.01mm to 0.03mm. In practical use, the hydrophilic layer may be made of other materials such as fiber.

Referring to fig. 1 to 3 and fig. 14, in order to facilitate the dropping of condensed water, in this embodiment, a water drop area 16 is further formed on the inner wall surface of the air duct 10, the water supply area 11 and the water drop area 16 are connected to each other along the circumferential direction of the air duct 10, and the water drop area 16 is inclined towards the air inlet 12. That is, the inner wall surface of the air duct 10 where the water falling area 16 is located extends along the direction from the air inlet 12 to the air outlet 13 and towards the direction close to the center line of the axial flow wind wheel 20, so that when the condensed water moves towards the air inlet 12, the condensed water is subjected to smaller centrifugal action of the axial flow wind wheel 20, and then the condensed water drops from the air inlet 12, the horizontal speed is smaller, the distance from the axial flow wind wheel 20 is closer during the dropping, the condensed water can be sucked to the axial flow wind wheel 20 faster under the action of negative pressure, and the auxiliary heat exchanger 200 is convenient to cool.

Referring to fig. 6 to 9, in an embodiment of the present application, in a longitudinal section of the air outlet device 100, an angle between a straight line formed by the water falling region 16 and a center line of the air duct 10 is δ, and δ is 2 ° or more and 3 ° or less. In this embodiment, the water drop zone 16 is provided in the form of a part of the side of the frustum, so as to facilitate the processing of the air duct 10. Meanwhile, the air duct 10 in the embodiment can adopt an injection molding or stamping molding process, and the angle is set, so that the air duct 10 can be molded and demolded conveniently. In other embodiments of the present application, the drop zone 16 may be curved or otherwise shaped.

As shown in fig. 8 and 9, in an embodiment of the present application, in a longitudinal section of the air outlet device 100, an angle between a straight line formed by the water supply area 11 and a center line of the air duct 10 is γ, that is, an inclination angle of the water supply area 11 in the longitudinal section is γ, and 2 ° is greater than or equal to γ and less than or equal to 3 °. In this embodiment, the air duct 10 is of an integrally formed structure, and in order to facilitate the integral forming, the height difference at the junction of the water falling region 16 and the water supply region 11 is reduced, and in this embodiment, 2 ° or more and γ or less than 3 ° is selected. In other embodiments of the present application, δ may be selected from angles of 4 °, 5 °, or 6 °, and γ may be selected from angles of 4 °, 5 °, or 6 °.

Further, the water supply area 11 and the water falling area 16 are in inclined plane or cambered surface transition. So as to reduce the drop at the junction of the water supply region 11 and the water drop region 16 and at the same time avoid the phenomenon of stress concentration at the junction or the condensate water remaining at the junction.

As shown in fig. 8 to 11, in an embodiment of the air outlet device 100 of the present application, the flow blocking rib 30 includes an upstream surface 30a and a downstream surface 30b that are disposed opposite to each other, the upstream surface 30a is provided with a flow guiding groove 31, and the flow guiding groove 31 is disposed to extend along the extending direction of the flow blocking rib 30.

At this time, the diversion trench 31 can be used for accommodating water drops, and provides guiding and moving tracks for the water drops to climb along the inner wall surface of the air duct 10, so that the climbing process of the water drops is more stable, the high point B after the water drops fly is easier to control and the position is more accurate, the water drops are better atomized in a dispersing manner on the water drops at the position of the fan blade, and finer microbeads are obtained, so that the heat exchange process of the microbeads and the heat exchanger 200 is further accelerated, the heat exchange efficiency of the heat exchanger 200 is improved, and the energy efficiency of the air conditioner outdoor unit 1000 is improved. Meanwhile, the position of the high point B after the water drops fly is more accurate, and the accuracy of the position of the water drops sucked into the fan blades can be improved, so that the dispersion range of the water drops on the heat exchanger 200 after discrete atomization is wider and more reasonable, more efficient heat exchange is realized, and the energy efficiency is improved.

As shown in fig. 1 to 11, in an embodiment of the air outlet device 100 of the present invention, one end of the flow guiding groove 31 extending along the rotation direction of the axial flow wind wheel 20 penetrates the end surface of the flow blocking rib 30. So, can make the water droplet deviate from smoothly in the guiding gutter 31 and fly upward to high point B, reduce the resistance that the water droplet receives when deviate from in the guiding gutter 31, make the kinetic energy after the water droplet deviate from in the guiding gutter 31 bigger, can come to higher position to after being discretely atomized by the fan blade of axial flow wind wheel 20, can more extensive dispersion on heat exchanger 200, thereby realize more efficient heat transfer, promote the energy efficiency.

As shown in fig. 1 to 11, in an embodiment of the air outlet device 100 of the present invention, the cross section of the flow guiding groove 31 is at least partially arc-shaped.

In this embodiment, the cross section of the flow guide groove 31 is formed of two parts, namely, a straight part provided by the inner wall surface of the air duct 10 and an arc part provided by the upstream surface 30a of the flow blocking rib 30. That is, the upstream surface 30a of the flow blocking rib 30 is provided in an arc shape. Of course, in other embodiments, the cross-section of the diversion trench 31 may also be entirely arc-shaped. The cross section refers to a plane perpendicular to the extending direction of the flow blocking rib 30.

So, when the water droplet is contained in guiding gutter 31, can laminate more with guiding gutter 31's cell wall for the water droplet is more stable when rising along the internal face of air duct 10 in guiding gutter 31, avoids the water droplet to make a round trip to rock and causes the route skew that flies upward, thereby make the high point B after the water droplet flies upward easier control, the position is more accurate, and then make the water droplet be inhaled to the position of fan blade better to the discrete atomizing of water droplet, obtain finer microballon, with the heat transfer process of further accelerating it with heat exchanger 200, promote heat exchange efficiency of heat exchanger 200, promote the energy efficiency of air condensing units 1000. Meanwhile, the position of the high point B after the water drops fly is more accurate, and the accuracy of the position of the water drops sucked into the fan blades can be improved, so that the dispersion range of the water drops on the heat exchanger 200 after discrete atomization is wider and more reasonable, more efficient heat exchange is realized, and the energy efficiency is improved. And avoid the water droplet to rock back and forth still can make the water droplet reduce at the kinetic energy loss of climbing in-process, improved the kinetic energy when the water droplet flies upward, make the high point B's of water droplet position higher to make it by fan blade discrete atomizing back can cover the wider scope on the heat exchanger 200, promote heat exchange efficiency and energy efficiency.

Further, the width of the diversion trench 31 along the radial direction of the air duct 10 is defined as d, and d is more than or equal to 5mm. In this way, the width d of the guide groove 31 along the radial direction of the air duct 10 can be effectively controlled within the range of not less than 5mm, so that the width d of the guide groove 31 along the radial direction of the air duct 10 is not less than the maximum diameter (4 mm to 5 mm) of water drops which can be formed under the action of surface tension, and the water drops can enter the guide groove 31 more smoothly to move along the guide groove 31.

Further, the width d of the flow guiding groove 31 along the radial direction of the air guiding tube 10 is not more than 10mm, namely d is less than or equal to 10mm. So, can further control guiding gutter 31 along radial width d of guiding gutter 10 in the within range that does not exceed 10mm to avoid guiding gutter 31 along radial width d of guiding gutter 10 too wide and take place to make a round trip to rock when leading to the water droplet to move along guiding gutter 31, make the kinetic energy loss of water droplet in the climbing process further reduce, the kinetic energy when having further improved the water droplet promptly and having raised, make the high point B's of water droplet position higher, thereby make it by fan blade discrete atomizing back can cover the wider scope on the heat exchanger 200, promote heat exchange efficiency and energy efficiency.

It will be appreciated that in practice the width d may be selected from 5mm, 5.5mm, 6mm, 7mm, 8mm, 9mm or 10mm.

As shown in fig. 1 to 3 and referring to fig. 14, in an embodiment of the air outlet device 100 of the present invention, the axial flow wind wheel 20 includes an air inlet side and an air outlet side that are disposed opposite to each other, and the air inlet side extends into the air outlet 13. That is, the air inlet side of the axial flow wind wheel 20 extends into the air duct 10 from the air outlet 13 of the air duct 10 and is accommodated in the air duct 10. In this way, on one hand, a matching structure between the inner wall surface of the air duct 10 and the fan blades of the axial flow wind wheel 20 is formed, which is favorable for the fan blades to cut air, effectively increases the air quantity of the air outlet device 100, and makes the air outlet of the air outlet device 100 more concentrated, so that the heat exchanger 200 can perform heat exchange better, and improves the heat exchange efficiency of the heat exchanger 200; on the other hand, the fan blades of the axial flow wind wheel 20 can be more easy to receive water drops moving towards the axial flow wind wheel 20 under the action of static pressure, so that the discrete atomization of the water drops by the fan blades is better, and finer microbeads are obtained, so that the heat exchange process with the heat exchanger 200 is further quickened, the heat exchange efficiency of the heat exchanger 200 is improved, and the energy efficiency of the air conditioner outdoor unit 1000 is improved.

As shown in fig. 1 to 3 and referring to fig. 14, in an embodiment of the air outlet device 100 of the present invention, the air outlet side protrudes from the air outlet 13. That is, the side of the axial flow wind wheel 20 facing away from the air inlet side thereof protrudes from the air outlet 13 of the air duct 10. Therefore, on one hand, the microbeads obtained after the water drops are discretely atomized by the fan blades can be effectively prevented from being intercepted by the inner wall surface of the air duct 10, so that more microbeads can be sprayed to the heat exchanger 200, and the heat exchange efficiency and energy efficiency of the heat exchanger 200 are improved; on the other hand, the noise of the air outlet device 100 can be effectively reduced.

As shown in fig. 1 to 15, in an embodiment of the air outlet device 100 according to the present invention, the flow blocking rib 30 is disposed adjacent to the air inlet 12, and the axial flow wind wheel 20 is located on a side of the flow blocking ring facing the air outlet 13. That is, the air inlet side of the axial flow wind wheel 20 extends into the air duct 10 from the air outlet 13 of the air duct 10, and is arranged at intervals with the flow blocking ribs 30 in the axial direction of the air duct 10. In this way, the overlapping of the flow blocking ribs 30 and the axial flow wind wheel 20 in the radial direction of the air duct 10 is effectively avoided, so that the outer edges of the blades of the axial flow wind wheel 20 are closer to the inner wall surface of the air duct 10, the air quantity of the air outlet device 100 is effectively increased, the heat exchanger 200 can perform heat exchange better, and the heat exchange efficiency of the heat exchanger 200 is improved.

As shown in fig. 3 to 14, in an embodiment of the air outlet device 100 of the present invention, the distance between the flow blocking rib 30 and the axial flow wind wheel 20 is defined as D, where D is less than or equal to 20mm. In this way, the situation that the height of the water drop at the high point B (located in the air duct 10) is too low and too close to the center of the axial flow wind wheel 20 when the water drop is sucked to the axial flow wind wheel 20 under the action of static pressure can be effectively avoided, and the situations that discrete atomization is too bad and the range of the water drop sprayed to the heat exchanger 200 is too small due to the fact that the water drop is too low can be avoided. That is, if the distance D between the flow blocking rib 30 and the axial flow wind wheel 20 exceeds 20mm, the height of the water drop at the high point B (located in the air duct 10) is too low and too close to the center of the axial flow wind wheel 20 when the water drop is sucked to the axial flow wind wheel 20 under the action of static pressure, and at this time, the range of the water drop which is scattered and atomized and sprayed to the heat exchanger 200 is too poor, which is not beneficial to effectively improving the heat exchange efficiency and energy efficiency of the heat exchanger 200. It is understood that the distance D of the flow blocking ribs 30 from the axial flow wind wheel 20 may be 10mm, 11mm, 12mm, 15mm, 20mm, etc.

As shown in fig. 3 to 14, in an embodiment of the air outlet device 100 of the present invention, the distance between the flow blocking rib 30 and the axial flow wind wheel 20 is defined as D, where D is equal to or greater than 6mm. In this way, the possibility that the axial flow wind wheel 20 collides or extrudes with the flow blocking rib 30 due to the clearance matched with the structure along the axial displacement of the air duct 10 in the running process can be effectively reduced, and the safety distance between the flow blocking rib 30 and the axial flow wind wheel 20 is ensured. That is, if the distance D between the flow blocking rib 30 and the axial flow wind wheel 20 is less than 6mm, the axial flow wind wheel 20 will greatly increase the probability of collision or extrusion with the flow blocking rib 30 due to the clearance of structural fit along the axial direction of the air duct 10 during operation, thereby affecting the operation of the axial flow wind wheel 20 and damaging the stability and reliability of the air outlet device 100. It is understood that the distance D of the flow blocking rib 30 from the axial flow wind wheel 20 may be 6mm, 7mm, 8mm, 9mm, 10mm, or the like.

As shown in fig. 3 to 14, in an embodiment of the air outlet device 100 of the present invention, the water supply structure 40 includes a water receiving tray 41, the air duct 10 is disposed in the water receiving tray 41, and at least a portion of the water supply area 11 is not higher than the side wall of the water receiving tray 41. Thus, the water supply structure 40 is effectively simplified, so that the structure is simple, the production and the manufacture are convenient, the assembly is convenient, excessive other parts are not introduced, and the cost is lower. And meanwhile, the method has higher stability and reliability.

Further, the height difference h between the lowest part of the water supply area 11 and the bottom wall of the water receiving tray 41 is not more than 6mm. In this embodiment, the water pan 41 is horizontally disposed for containing condensed water. The air duct 10 is disposed in the water receiving tray 41, and at least a portion of the water supply area 11 is not higher than the side wall of the water receiving tray 41. Thus, when the axial flow wind wheel 20 rotates at a high speed, the condensed water in the water receiving disc 41 will "climb" the water supply area 11 on the inner surface of the wind guiding ring due to the action of the surface tension of the liquid, the centrifugal action and the siphon effect of the axial flow wind wheel 20. Because the maximum diameter of the water drop formed by the water under the action of the surface tension is 4mm to 5mm, in order to facilitate less water in the water receiving disc 41 to climb to the water supply area 11 of the air guide ring under the centrifugal action of the axial flow wind wheel 20, the height difference h between the lowest part of the inner wall surface of the air guide cylinder 10 and the bottom wall of the water receiving disc 41 is not more than 6mm, and in practical application, the height difference can be 1mm, 2mm, 3mm, 4mm, 5mm or 6mm.

The present invention also provides an air conditioning system (not shown), which includes an air conditioning indoor unit and an air conditioning outdoor unit 100, where the specific structure of the air conditioning outdoor unit 100 refers to the above embodiments, and since the air conditioning system adopts all the technical solutions of all the embodiments, it has at least all the beneficial effects brought by the technical solutions of the embodiments, and will not be described in detail herein.

The air outlet 13 of the air outlet device 100 is disposed facing the heat exchanger 200. The air outlet device 100 further includes a casing 50 surrounding the air duct 10, and the heat exchanger 200 is covered by the casing 50.

Referring to fig. 1 to 15, in an embodiment of the present invention, a water supply structure 40 of an air outlet device 100 is a water receiving tray 41, and the water receiving tray 41 is horizontally disposed for receiving water (e.g. condensed water). The outdoor unit 1000 further comprises a bracket 300 fixed on the water pan 41, a mounting hole is further formed on the bracket 300, a motor 400 is further arranged in the mounting hole, and an output shaft of the motor 400 is connected with the axial flow wind wheel 20, so that the axial flow wind wheel 20 is driven to rotate. The outdoor unit 1000 further includes a housing covering the water pan 41, so as to protect the air outlet device 100, the heat exchanger 200, and the like. The air outlet of the outdoor unit 1000 may be provided on the front panel, the back panel or the side panel of the housing, so long as the air outlet is convenient, and the heat exchanger 200 is provided before the air outlet in the air flow direction. Accordingly, the air inlet of the outdoor unit 1000 may be disposed at other positions of the housing, and an air channel is formed between the air inlet and the air outlet.

The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.

Claims

1. The utility model provides an air condensing units, its characterized in that includes shell, air-out device and heat exchanger, the shell is equipped with the heat transfer wind channel, the air-out device includes:

the air outlet device and the heat exchanger are sequentially arranged along the air flow direction of the heat exchange air duct, and the air outlet is arranged towards the heat exchanger;

the air duct structure is an air duct, and the air duct is provided with the air inlet and the air outlet; the water scattering structure is a flow blocking rib, the flow blocking rib is convexly arranged on the inner wall surface of the air duct and extends along the circumferential direction of the air duct, the inner wall surface of the air duct between the flow blocking rib and the air outlet is formed into a water supply area, and the outer edge of the lowest part of the water supply area is formed into a water guiding structure; the water supply area is obliquely arranged facing the air outlet;

The flow blocking ribs comprise water dispersing ends extending along the rotation direction of the fan.

2. The outdoor unit of claim 1, wherein the housing comprises a bottom plate, a front panel disposed on the bottom plate, and two side plates disposed on two sides of the front panel, and the front panel and/or at least one of the side plates has a heat exchanging air duct inlet.

3. The outdoor unit of claim 2, wherein the base plate is further provided with a middle partition plate, the middle partition plate is positioned between the two side plates, the middle partition plate is provided with an air outlet, the middle partition plate, the base plate and one of the side plates enclose a mounting space, and the air outlet device is arranged in the mounting space.

4. The outdoor unit of claim 1, wherein the air outlet means further comprises a casing surrounding the air duct structure, and the casing is covered on the heat exchanger.

5. The outdoor unit of claim 1, wherein the air outlet means further comprises a bracket and a motor fixed to the bracket, and an output shaft of the motor extends into the air inlet and is in driving connection with the blower.

6. The outdoor unit of any one of claims 1 to 5, wherein an inner wall surface of the air duct structure between the water dispersing structure and the air outlet forms a water supply area, and the air outlet device further comprises a water supply structure disposed adjacent to the air duct and communicating with the water supply area to supply water to the water supply area.

7. The outdoor unit of claim 6, wherein the water supply structure comprises a water pan, the air duct is disposed in the water pan, and at least a portion of the water supply area has a height not higher than a height of a side wall of the water pan.

8. The outdoor unit of claim 6, wherein the difference between the lowest part of the water supply area and the bottom wall of the water supply structure is not more than 6mm.

9. The outdoor unit of any one of claims 1 to 5, wherein the flow blocking ribs comprise opposite water-facing surfaces and wind-facing surfaces, and the wind-facing surfaces extend in the direction of the airflow of the duct and toward the center of the duct;

10. The outdoor unit of any one of claims 1 to 5, wherein a line connecting the water dispersing end and the center of the air duct is higher than a horizontal plane in which the center of the air duct is located.

11. The outdoor unit of claim 10, wherein an angle α between a line defining the water dispersing end and the center of the air duct and a horizontal plane is 30 ° < α.ltoreq.60°.

12. The outdoor unit of any one of claims 1 to 5, wherein the flow blocking rib further comprises a start end extending in a direction opposite to the rotation direction of the blower, and an angle β between a line connecting the start end and the center of the air duct and the vertical plane is not less than 10 °.

13. The outdoor unit of claim 12, wherein the angle β between the line connecting the start point end and the center of the duct and the vertical plane is not more than 45 °.

14. The outdoor unit of any one of claims 1 to 5, wherein the inner wall surface of the air duct is further formed with a water falling region, the water falling region and the water supply region are connected to each other in a circumferential direction of the air duct, and the water falling region is inclined toward the air inlet.

15. An air conditioning system comprising an air conditioning indoor unit and an air conditioning outdoor unit according to any one of claims 1 to 14.