CN109506303B - Mobile air conditioner - Google Patents

Mobile air conditioner Download PDF

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Publication number
CN109506303B
CN109506303B CN201811462710.0A CN201811462710A CN109506303B CN 109506303 B CN109506303 B CN 109506303B CN 201811462710 A CN201811462710 A CN 201811462710A CN 109506303 B CN109506303 B CN 109506303B
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China
Prior art keywords
air
water
air duct
air outlet
heat exchanger
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CN201811462710.0A
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Chinese (zh)
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CN109506303A (en
Inventor
刘发申
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GD Midea Air Conditioning Equipment Co Ltd
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GD Midea Air Conditioning Equipment Co Ltd
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Priority to CN201811462710.0A priority Critical patent/CN109506303B/en
Publication of CN109506303A publication Critical patent/CN109506303A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/02Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02Ducting arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22Means for preventing condensation or evacuating condensate
    • F24F13/222Means for preventing condensation or evacuating condensate for evacuating condensate

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The invention discloses a mobile air conditioner, which comprises an outdoor heat exchange part and an indoor heat exchange part which are arranged at intervals along the height direction of the mobile air conditioner, wherein the outdoor heat exchange part comprises an outdoor heat exchange air duct, an air outlet device and a heat exchanger, and the air outlet device comprises: the air duct is provided with an air inlet and an air outlet; the flow blocking ribs are convexly arranged on the inner wall surface of the air duct and extend along the circumferential direction of the air duct, and the inner wall surface of the air duct between the flow blocking ribs and the air outlet is provided with a water supply area; the axial flow wind wheel is at least partially arranged in the air duct, and rotates in the air duct to blow out water in the water supply area through an air outlet of the air duct; the air outlet device and the heat exchanger are sequentially arranged along the airflow direction of the outdoor 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 mobile air conditioner.

Description

Mobile air conditioner
Technical Field
The invention relates to the technical field of air conditioning, in particular to a mobile air conditioner.
Background
With the development and progress of technology, air conditioners have gradually become an indispensable household appliance in people's daily life. How to improve the energy efficiency of an air conditioner has been a subject of great attention from research and development personnel. In the existing air conditioner, a single air cooling mode is commonly adopted for a heat exchanger, and the heat exchange efficiency is low, so that the energy efficiency of the air conditioner is difficult to improve.
Disclosure of Invention
The invention mainly aims to provide a mobile air conditioner, which aims to improve the energy efficiency of the mobile air conditioner.
In order to achieve the above object, a mobile air conditioner according to the present invention includes:
including follow remove air conditioner direction of height interval setting's outdoor heat transfer part and indoor heat transfer part, outdoor heat transfer part includes outdoor heat transfer wind channel, air-out device and heat exchanger, the air-out device includes:
the air duct is provided with an air inlet and an air outlet;
the flow blocking ribs are arranged on the inner wall surface of the air duct in a protruding mode, extend along the circumferential direction of the air duct, and are positioned between the flow blocking ribs and the air outlet, and are positioned on the inner wall surface of the air duct in a water supply area; and
the axial flow wind wheel is at least partially arranged in the air duct, and rotates in the air duct to enable water in the water supply area to be blown out through an air outlet of the air duct;
the air outlet device and the heat exchanger are sequentially arranged along the air flow direction of the outdoor heat exchange air duct, and the air outlet faces the heat exchanger.
Optionally, the air outlet device further comprises a chassis, the air duct is arranged in the chassis, and the height of at least part of the water supply area is not higher than the height of the side wall of the chassis.
Optionally, the height difference between the lowest part of the inner wall surface of the air duct and the bottom wall of the chassis is not more than 6mm.
Optionally, the air outlet device further comprises a housing surrounding the air duct, and the housing houses the heat exchanger.
Optionally, the air outlet device further comprises a bracket, wherein the bracket is arranged on the outer side of the housing and faces the air inlet;
the air outlet device further comprises a motor fixed on the support, and an output shaft of the motor stretches into the air inlet and is in transmission connection with the axial flow wind wheel.
Optionally, the flow blocking rib comprises a terminal end extending along the rotation direction of the axial flow wind wheel, and the terminal end is higher than the horizontal plane where the center of the air duct is located.
Optionally, an included angle between a connecting line of the terminal end and the center of the air duct and a horizontal plane is defined as alpha, and alpha is more than or equal to 30 degrees and less than or equal to 60 degrees
Optionally, the flow blocking ribs are distributed on the inner wall surface of the air duct from the vertical surface where the axis of the air duct is located in the opposite direction along the rotation direction of the axial flow wind wheel at least in the range of 0-10 degrees.
Optionally, the flow blocking ribs are distributed on the inner wall surface of the air duct from the vertical surface where the axis of the air duct is located in the opposite direction along the rotation direction of the axial flow wind wheel, and at most in the range of 0-45 degrees.
Optionally, the flow blocking rib comprises a water facing surface and a wind facing surface which are oppositely arranged, and the wind facing surface is arranged along the airflow direction of the air duct and extends towards the center of the air duct;
and/or the flow blocking rib comprises a water facing surface and a wind facing surface which are oppositely arranged, wherein the water facing surface is provided with a diversion trench, and the diversion trench 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, wherein L is more than or equal to 5mm and less than or equal to 12mm;
and/or the water supply area is obliquely arranged towards the air outlet;
and/or the inner wall surface of the air duct is also provided with a water falling area, the water falling area and the water supply area are mutually connected along the circumferential direction of the air duct, and the water falling area is obliquely arranged facing the air inlet.
According to the technical scheme, when the fan rotates at a high speed, air flows from the air inlet to the air outlet of the air duct at a high speed, and can be blown to the heat exchanger of the mobile air conditioner (air treatment device). Because the air of the air inlet side of the air inlet is continuously conveyed to the air outlet side of the air guide cylinder by the fan, a negative pressure space is formed on the air inlet side of the air inlet relative to the air outlet side, pressure difference is formed on two sides of water drops in the water supply area at the moment, and the water drops can move from the air outlet side to the air inlet side to form backflow. Further, water drops in the water supply area are accelerated under the drive of the fan blades of the fan rotating at a high speed, then quickly climb upwards along the inner wall surface of the air duct and along the upstream surface of the flow blocking rib, and then separate from the inner wall surface of the air duct and the upstream surface of the flow blocking rib under the action of inertia to fly to a high point B (located in the air duct). Further, water drops at a high point B (positioned in the air duct) are sucked to the fan under the action of static pressure, and are scattered and atomized into fine microbeads by the fan blades of the fan rotating at high speed to be blown to the high-temperature heat exchanger for gasification and evaporation, so that the heat exchanger is assisted in heat dissipation and cooling, the air cooling and cooling of the heat exchanger are further carried out, the water cooling function is increased, the heat exchange efficiency of the heat exchanger is improved, and the energy efficiency of a mobile air conditioner (air treatment device) with the blowing structure is improved.
Drawings
In order to more clearly illustrate the embodiments of the 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, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained from the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an air treatment device according to an embodiment of the present invention;
FIG. 2 is a schematic view of the air treatment device of FIG. 1 with the heat exchanger removed;
FIG. 3 is a partial cross-sectional view of the air treatment device 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 view of another embodiment of an air treatment device according to the present invention, wherein a water receiving portion 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:
reference numerals Name of the name Reference numerals Name of the name
100 Air outlet device 31 Diversion trench
10 Air duct structure and air duct 35 Main diversion section
11 Water supply area 37 Auxiliary diversion section
12 Air inlet 40 Water supply structure
13 Air outlet 41 Water receiving tray
14 Water diversion structure and water diversion section 411 Water collecting tank
15 Water receiving part 50 Housing shell
16 Area of falling into water 60 Water-beating ring
20 Fan and axial flow wind wheel 200 Heat exchanger
30 Water dispersing structure and flow blocking rib 300 Support frame
30a Upstream surface of water 400 Motor with a motor housing
30b Back surface of water 1000 Air treatment device
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 fall within the scope of the protection of the invention.
It should be noted that all directional indications (such as up, down, left, right, front, back … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular gesture (as shown in the drawings), and if the particular gesture changes, the directional indication changes accordingly.
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 number of features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "coupled," "secured," and the like are to be construed broadly, and for example, "secured" may be either a fixed connection, a removable connection, or a combination thereof; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate medium, and may be in communication with each other or in interaction with each other, unless otherwise specifically defined. 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.
In addition, the technical solutions of the embodiments of the present invention may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the present invention, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present invention.
The present invention proposes an air outlet device 100, which can be applied to an air processing device 1000 (e.g. a window machine, an air conditioning outdoor unit, a mobile air conditioner, etc.), and is disposed at a position upwind of a heat exchanger 200 of the air processing device 1000, so as to perform "blowing" processing on the heat exchanger 200, and aims to improve energy efficiency of the air processing device 1000.
In an embodiment of the air outlet device 100 of the present invention, the air outlet device 100 includes:
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 on the air duct structure 10; and
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 forms a negative pressure space at the water diversion structure 14 to suck water into the water diversion structure 14.
Further, the air outlet device 100 further includes a water dispersing structure 30, and the water dispersing structure 30 is disposed on an inner wall surface of the air duct structure 10; the fan 20 blows water out through the air outlet 13 at the water-dispersing end of the water-dispersing structure 30.
Specifically, the air duct structure 10 may be a part of a housing member of the complete machine, for example, when the air outlet device 100 is applied to an air treatment device, it is a structure formed inside a housing of the complete 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 water dispersing structure 30 is disposed on the inner wall surface of the air duct structure 10, and the water dispersing structure 30 may be ribs, plate-like structures, protruding structures, or the like. The water dispersing structure 30 can be integrated with the air duct structure 10 or can be arranged separately. The inner wall surface of the air duct structure 10 between the water scattering structure 30 and the air outlet 13 is formed as 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 whose lower end is not more than 6mm in height from the bottom wall of the water supply structure (for example, a water receiving tray 41 hereinafter); it may also be a guide step surface whose lower end is not more than 6mm in height from the bottom wall of the water supply structure (for example, a water receiving tray 41 to be described later), and whose adjacent steps are not more than 6mm in height.
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 treatment device 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 invention is provided with the water diversion structure 14 on the air duct structure 10, and by reasonable matching with the fan 20, the negative pressure space is formed at the water diversion structure 14 when the 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 a heat exchanger, so that the heat exchange efficiency and the energy efficiency of the heat exchanger are improved, and the heat exchange efficiency and the energy efficiency of the air treatment device are improved).
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.
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 in an extending manner, and the other end of the flow blocking rib is arranged along the opposite direction of the rotation direction of the fan 20 in an extending manner. 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 to the air outlet 13 of the air duct 10, and can be blown to the heat exchanger 200 of the air treatment device 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 to be gasified and evaporated, so that the heat dissipation and cooling of the heat exchanger 200 are assisted, and the air cooling and cooling functions are added while the heat exchanger 200 is cooled by air, so that the heat exchange efficiency of the heat exchanger 200 is improved, and the energy efficiency of the air treatment device 1000 with the blowing structure is improved.
Of course, it is understood that the flow blocking ribs 30 may be connected end to form a ring shape, thereby obtaining 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 with 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 surface 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 surface 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 on fine beads, and further improving heat exchange efficiency of the heat exchanger 200 and energy efficiency of the air treatment device 1000. Because the air duct 10 is in a ring shape, the auxiliary air guide section 37 extends along the radial direction of the air duct 10 to uniformly distribute the stress of the main air 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 water droplets 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 upstream surface 30a of the flow blocking rib 30, so that the water droplets 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 further 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 treatment device 1000 can be further improved.
In an embodiment of the air outlet device 100 of the present invention, 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 shifted, 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, sucking, dispersing and atomizing, spraying and covering, evaporating and gasifying, and the like, namely, 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 treatment device 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 °. Therefore, the included angle beta 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 surface can be effectively controlled within the range of not more than 45 degrees, the air quantity is obviously reduced due to the fact that the starting end of the flow blocking rib 30 is too high (the included angle beta is too large), and the resource waste and the cost improvement caused by the fact that no water drop is blocked near the starting end of the flow blocking rib 30 due to the fact that the starting end of the flow blocking rib 30 is too high (the included angle beta is too large) are avoided. 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 around is further reduced, and thus more water drops are accelerated to complete the processes of climbing, inhalation, discrete atomization, spraying coverage, evaporation and gasification, etc., 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 processing device 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 drop formed by the water drop 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 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 drop formed under the action of the surface tension, thereby causing the water drop 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, 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 treatment device 1000 are further improved. It will be appreciated that the height L of the flow blocking rib 30 may 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 the water drop that can be formed under the action of the surface tension, thereby avoiding the water drop from "crossing over" the flow blocking rib 30 and losing, and avoiding the decrease of the heat exchange efficiency of the heat exchanger 200 caused thereby, and better preventing the decrease of the wind energy passing through the air duct 10, ensuring the cost of production and processing, and improving the blowing capability of the fan on the fine beads, and further improving the heat exchange efficiency of the heat exchanger 200 and the energy efficiency of the air treatment device 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: d+l is more than or equal to 5mm and less than or equal to 17mm. The main guiding section 35 is mainly used for guiding condensed water in the water receiving disc 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 structural stability, 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 are prevented from being reduced.
In an embodiment of the present application, d is the length from the side edge 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 on tiny microbeads is improved, and the heat exchange efficiency of the heat exchanger 200 and the energy efficiency of the air treatment device 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 drop that can be formed is 4mm to 5mm under the effect of surface tension, 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 guide cylinder 10 is lower than the maximum diameter (4 mm to 5 mm) of the water drop that can be formed under the effect of surface tension, and then the water drop is caused to "cross over" the flow blocking rib 30 to lose, and the reduction of the heat exchange efficiency of the heat exchanger 200 brought by the water drop is avoided, so that the water drop cannot be better 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 wind passing through the air guide cylinder 10 is blocked, the wind energy is reduced, and the axial flow wind wheel 20 which cannot be better blown to the heat exchanger 200 by the axial flow wind wheel 20 is also caused, and the production and processing cost is improved, so that the use by users is inconvenient. When the height d of the main guide section 35 is set within the range that d is less than or equal to 5mm and less than or equal to 12mm, water positioned 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 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 to tiny microbeads is improved, and the heat exchange efficiency of the heat exchanger 200 and the energy efficiency of the air treatment device 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 wind energy from being reduced 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 processing device 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 guide section 37 has the functions of increasing the strength of the flow blocking ribs 30 and providing a margin for processing the main guide section 35, the auxiliary guide section 37 is set to be greater than 0, but the excessively high auxiliary guide section 37 can reduce the air inlet amount 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 air guiding 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 flows out of the back surface 30b after too much transition is carried out on the back surface 30b, and the transition effect of the back surface 30b is reduced greatly, so that the energy loss of the air flowsCompared withLarge, and generates noise. When the angle of the central angle is 30-150 degrees, the transition of the air flow on the back surface 30b is moderate, so that 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 an embodiment of the present application, the main flow guiding section 35 includes a back surface 30b located on the air inlet side, and the back surface 30b is bent and extended towards 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 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 smaller 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 to 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 in an extending manner along the 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 an embodiment of the present application, the back surface 30b is connected to the outer side surface of the air duct 10 in a smooth manner. 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 when the air flow enters the air guide cylinder 10 is excessively large, 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 of patent 2, in an embodiment of the present application, the 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, air and water are conveniently guided, 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 provision of the detachable connection facilitates replacement of the damaged flow blocking ribs 30, maintaining the energy efficient effect of the air treatment device 200.
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 to 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 ring 60 and the air outlet 13 to be not less than 10mm, the safe distance between the water ring 60 and the air duct 10 can be ensured, so that the possibility that the water 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 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 arranged in the water receiving disc 41, and at least part of the water supply area 11 is not higher than the side wall of the water receiving disc 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 will "climb" the water supply area 11 on the inner wall surface of the wind guiding ring due to the surface tension action of the liquid, the centrifugal action and the siphon effect action of the axial flow wind wheel 20. In this way, the air treatment device 1000 can be reused for condensed water (for example, condensed water generated in the cooling state of the indoor heat exchanger 200). And, the temperature of comdenstion water is lower, the cold volume is more sufficient for carrying out "water cooling" to heat exchanger 200 can make heat exchange efficiency of heat exchanger 200 higher, thereby further promote heat exchange efficiency of heat exchanger 200, promote the energy efficiency of air treatment device 1000. 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 air treatment device 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 disc can be set to be 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 guiding drum 10 when the water in the water receiving disc 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 formed by recessing 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" into the water supply area 11, the outer edge of the water supply area 11 is formed with a water receiving portion 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 flat surface, an inclined surface, an arc surface, or a stepped surface with a height difference between adjacent steps of not more than 6mm. 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 will be appreciated 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 such a scheme may be applied to a situation where the depth of the water collection tank 411 is deeper.
To facilitate the ascending of condensed water to the water intake section 14 when the amount of water 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 smaller under the centrifugal action of the axial flow wind wheel 20, and then the horizontal speed is smaller when the condensed water drops from the air inlet 12, and then the distance from the axial flow wind wheel 20 is closer when the condensed water drops, and the condensed water can be quickly sucked to the axial flow wind wheel 20 under the action of negative pressure, so that 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 water drop zone 16 may be curved
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 invention, 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 area 11 and the water drop area 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 invention, 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 guidance and movement tracks for the water drops to climb along the inner wall surface of the air duct 10, so that the water drops climb more stably, 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 between 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 treatment device 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 be 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 line 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 by the position of inhaling the 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 treatment device 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 treatment device 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 scattered and 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 the 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 of the present invention, the flow blocking ribs 30 are 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 height making 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 the discrete atomization is too bad and the range sprayed to the heat exchanger 200 is too small due to the fact that the discrete atomization is too bad 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 discrete atomization of the water drop is too poor and the range of the water drop sprayed to the heat exchanger 200 is too small, 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 displacement of the axial flow wind wheel 20 along the air duct 10 due to the clearance of the structural fit and the probability of collision or extrusion with the flow blocking rib 30 will greatly rise 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 wind guiding cylinder 10 is arranged in the water receiving disc 41, and at least part of the water supply area 11 is not higher than the side wall of the water receiving disc 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 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 proposes an air treatment device 1000, where the air treatment device 1000 includes a heat exchanger 200 and the air outlet device 100 as described above, and the specific structure of the air outlet device 100 is detailed in the foregoing embodiment. Because the air treatment device 1000 adopts all the technical solutions of all the foregoing embodiments, at least all the beneficial effects brought by all the technical solutions of all the foregoing embodiments are not 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 air treatment device 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 air treatment device 1000 further includes a housing covering the water pan 41, so as to facilitate protection of the air outlet device 100, the heat exchanger 200, and the like.
Specifically, the air treatment device 1000 of the present invention is a mobile air conditioner 1000, and the mobile air conditioner 1000 includes an outdoor heat exchange portion and an indoor heat exchange portion that are disposed at intervals along the height direction of the mobile air conditioner 1000, where the outdoor heat exchange portion includes an outdoor heat exchange air duct, a heat exchanger 200, and the air outlet device 100 as described above, and the specific structure of the air outlet device 100 is described in detail in the foregoing embodiments. Since the mobile air conditioner 1000 adopts all the technical solutions of all the foregoing embodiments, at least all the beneficial effects brought by all the technical solutions of all the foregoing embodiments are not described in detail herein.
The air outlet device 100 and the heat exchanger 200 are sequentially arranged along the air flow direction of the outdoor heat exchange air duct, and the air outlet 12 of the air duct 10 is arranged towards the heat exchanger 200. The air inflow port and the air outflow port of the outdoor heat exchange air duct are communicated with the outside, and the outdoor heat exchange air duct can be realized through a pipeline.
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 present description and drawings or direct/indirect application in other related technical fields are included in the scope of the present invention under the inventive concept of the present invention.

Claims (9)

1. The utility model provides a mobile air conditioner, its characterized in that includes along remove air conditioner height direction interval setting's outdoor heat transfer part and indoor heat transfer part, outdoor heat transfer part includes outdoor heat transfer wind channel, air-out device and heat exchanger, the air-out device includes:
the air duct is provided with an air inlet and an air outlet;
the flow blocking ribs are arranged on the inner wall surface of the air duct in a protruding mode, extend along the circumferential direction of the air duct, and are positioned between the flow blocking ribs and the air outlet, and are positioned on the inner wall surface of the air duct in a water supply area; and
The axial flow wind wheel is at least partially arranged in the air duct, and rotates in the air duct to enable water in the water supply area to be blown out through an air outlet of the air duct;
the air outlet device and the heat exchanger are sequentially arranged along the air flow direction of the outdoor heat exchange air duct, and the air outlet is arranged towards the heat exchanger;
the flow blocking rib comprises a terminal end extending along the rotation direction of the axial flow wind wheel, and the terminal end is higher than the horizontal plane where the center of the air duct is located.
2. The mobile air conditioner of claim 1, wherein the air outlet device further comprises a chassis, the air duct is disposed in the chassis, and at least a portion of the water supply area is not higher than a side wall of the chassis.
3. The mobile air conditioner of claim 2, wherein a height difference between a lowest part of an inner wall surface of the duct and a bottom wall of the chassis is not more than 6mm.
4. The mobile air conditioner of claim 2, wherein the air outlet device further comprises a housing surrounding the air duct, the housing the heat exchanger.
5. The mobile air conditioner according to claim 4, wherein the air outlet device further comprises a bracket, the bracket is arranged on the outer side of the housing and faces the air inlet;
The air outlet device further comprises a motor fixed on the support, and an output shaft of the motor stretches into the air inlet and is in transmission connection with the axial flow wind wheel.
6. The mobile air conditioner of claim 1, wherein an included angle between a line defining the terminal end and the center of the duct and a horizontal plane is alpha, and alpha is 30 degrees or more and 60 degrees or less.
7. The mobile air conditioner of claim 1, wherein the flow blocking ribs are distributed on an inner wall surface of the air duct from a vertical surface where an axis of the air duct is located in a direction opposite to a rotation direction of the axial flow wind wheel in a range of at least 0 ° to 10 °.
8. The mobile air conditioner according to claim 7, wherein the flow blocking ribs are distributed on an inner wall surface of the air duct in a direction opposite to a rotation direction of the axial flow wind wheel from a vertical surface where an axis of the air duct is located, at most in a range of 0 ° to 45 °.
9. The mobile air conditioner according to any one of claims 1 to 8, wherein the flow blocking rib comprises a water facing surface and a wind facing surface which are oppositely arranged, and the wind facing surface is arranged along the airflow direction of the air duct and extends towards the center of the air duct;
And/or the flow blocking rib comprises a water facing surface and a wind facing surface which are oppositely arranged, wherein the water facing surface is provided with a diversion trench, and the diversion trench 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, wherein L is more than or equal to 5mm and less than or equal to 12mm;
and/or the water supply area is obliquely arranged towards the air outlet;
and/or the inner wall surface of the air duct is also provided with a water falling area, the water falling area and the water supply area are connected with each other along the circumferential direction of the air duct, and the water falling area is obliquely arranged facing the air inlet.
CN201811462710.0A 2018-11-30 2018-11-30 Mobile air conditioner Active CN109506303B (en)

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CN109506303B true CN109506303B (en) 2024-02-20

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4538425A (en) * 1982-10-29 1985-09-03 Mitsubishi Denki Kabushiki Kaisha Integral type air conditioning device
CN1755229A (en) * 2004-09-29 2006-04-05 乐金电子(天津)电器有限公司 Central airflow guiding plate of integral air conditioner
CN203980507U (en) * 2014-04-29 2014-12-03 美的集团股份有限公司 Air-conditioner outdoor unit
CN104633886A (en) * 2013-11-08 2015-05-20 美的集团股份有限公司 Air guide ring for air conditioner and air conditioner with air guide ring
CN106885316A (en) * 2017-02-07 2017-06-23 海信(广东)空调有限公司 Air guide ring and air conditioner outdoor unit
CN209263183U (en) * 2018-11-30 2019-08-16 广东美的制冷设备有限公司 Mobile air conditioner

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4538425A (en) * 1982-10-29 1985-09-03 Mitsubishi Denki Kabushiki Kaisha Integral type air conditioning device
CN1755229A (en) * 2004-09-29 2006-04-05 乐金电子(天津)电器有限公司 Central airflow guiding plate of integral air conditioner
CN104633886A (en) * 2013-11-08 2015-05-20 美的集团股份有限公司 Air guide ring for air conditioner and air conditioner with air guide ring
CN203980507U (en) * 2014-04-29 2014-12-03 美的集团股份有限公司 Air-conditioner outdoor unit
CN106885316A (en) * 2017-02-07 2017-06-23 海信(广东)空调有限公司 Air guide ring and air conditioner outdoor unit
CN209263183U (en) * 2018-11-30 2019-08-16 广东美的制冷设备有限公司 Mobile air conditioner

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