CN114688717B - Air guide structure, fan structure and air conditioner - Google Patents

Air guide structure, fan structure and air conditioner Download PDF

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Publication number
CN114688717B
CN114688717B CN202011630064.1A CN202011630064A CN114688717B CN 114688717 B CN114688717 B CN 114688717B CN 202011630064 A CN202011630064 A CN 202011630064A CN 114688717 B CN114688717 B CN 114688717B
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China
Prior art keywords
wind
section
guiding section
curved
flat
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CN202011630064.1A
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Chinese (zh)
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CN114688717A (en
Inventor
张冀喆
闫嘉超
薛永升
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Midea Group Co Ltd
Guangdong Midea White Goods Technology Innovation Center Co Ltd
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Midea Group Co Ltd
Guangdong Midea White Goods Technology Innovation Center Co Ltd
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Priority to CN202011630064.1A priority Critical patent/CN114688717B/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/081—Air-flow control members, e.g. louvres, grilles, flaps or guide plates for guiding air around a curve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20—Casings or covers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20—Casings or covers
    • F24F2013/205—Mounting a ventilator fan therein

Abstract

The embodiment of the application provides an air guide structure, a fan structure and an air conditioner, wherein the air guide structure comprises an annular flat air guide section; and the curved wind guide section is connected with one end of the flat wind guide section along the axial direction, wherein the outer edge of the curved wind guide section gradually changes along the curvature in the direction from the flat wind guide section to the curved wind guide section on the section perpendicular to the axis of the flat wind guide section. In the technical scheme of the application, the curvature of the curved wind guide section of the wind guide structure is gradually changed, so that the direction change of the air flow is gentle in the process of the air flow passing through the curved wind guide section, the air flow has a good diversion effect, turbulence or backflow is not easy to generate, the pressure pulsation of the air flow to the wind guide structure caused by the unstable air flow can be avoided, and further the noise is eliminated.

Description

Air guide structure, fan structure and air conditioner
Technical Field
The application relates to the technical field of air conditioning equipment, in particular to an air guide structure, a fan structure and an air conditioner.
Background
The wind-guiding ring of the air conditioner in the prior art consists of a straight section and a curve section, and the curve section in the prior art is a quarter arc. The air flow entering the air guide ring cannot be well guided, the air flow is unstable, noise is formed, and the power consumption of the air conditioning equipment is increased.
Disclosure of Invention
The present application aims to solve at least one of the technical problems existing in the prior art or related art.
In view of this, a first aspect of the embodiments of the present application provides an air guiding structure.
A second aspect of an embodiment of the present application provides a fan structure.
A third aspect of an embodiment of the present application provides an air conditioner.
To achieve the above object, an embodiment of a first aspect of the present application provides an air guiding structure, including: an annular flat wind guide section; and the curved wind guide section is connected with one end of the flat wind guide section along the axial direction, wherein the curvature of the outer edge of the curved wind guide section along the direction from the flat wind guide section to the curved wind guide section is gradually changed on the section perpendicular to the axis of the flat wind guide section.
An embodiment according to a first aspect of the present application provides an air guiding structure, including a flat air guiding section and a curved air guiding section. The flat wind guide section is annular, and the curved wind guide section is connected with one end of the flat wind guide section along the axial direction. On the axial section of the flat wind guide section, the curvature of the outer edge of the curved wind guide section along the direction from the flat wind guide section to the curved wind guide section gradually changes. The outer edge of the curved wind guiding section is the outer edge of the axial section of the curved wind guiding section. When the air flow enters the air guide structure, the air flow at the edge of the air guide structure firstly contacts the curved air guide section, then enters the flat air guide section along the arc line of the curved air guide section, and then flows out of the air guide structure through the flat air guide section. The curvature of the curved wind-guiding section gradually changes, so that the direction change of the air flow is gentle in the process of passing through the curved wind-guiding section, the air flow has a good diversion effect, turbulence or backflow is not easy to generate, pressure pulsation of the air flow to the wind-guiding structure due to unstable air flow can be avoided, and noise is further eliminated.
Further, when air flows from the outside of the flat wind guiding section to the curved wind guiding section, the curvature of the outer edge of the curved wind guiding section gradually changes, so that the air flow also smoothly flows through the corresponding position of the curved wind guiding section, and turbulence is not generated due to abrupt change of the curvature of the edge.
Generally, for wind guiding structures, the airflow flows into the flat wind guiding section from the curved wind guiding section and flows out through the flat wind guiding section. However, when the amount of air flowing in is large, part of the air flow may flow out of the curved wind guiding section and reach out of the flat wind guiding section. If other structures block the flow direction of the airflow at this location, the airflow may flow back to the other side of the curved wind-guiding section. As the curvature of the outer edge of each part of the outer edge of the curved wind-guiding section is gradually changed, the backflow airflow can not form unstable airflow at the same time, and noise is avoided.
Embodiments of the second aspect of the present application provide a fan structure, including: at least one fan blade; the air guiding structure according to any one of the embodiments of the first aspect is sleeved outside the fan blade.
According to a second aspect of the present application, a fan structure includes at least one fan blade, where the fan blade is sleeved with the wind guiding structure according to any one of the embodiments of the first aspect. When the fan blades rotate, the air guide structure can guide air to the fan structure.
In addition, the fan structure includes any of the air guiding structures of the first aspect, so any of the beneficial effects of the embodiments of the first aspect are not described herein.
An embodiment of a third aspect of the present application provides an air conditioner, including: a housing; a fan structure as in any of the above embodiments of the second aspect, disposed within the housing.
An embodiment of the present application provides an air conditioner, including a casing, where the fan structure is disposed in the casing according to any one of the embodiments of the second aspect.
In addition, the fan structure includes any of the fan structures of the second aspect, so any of the beneficial effects of the embodiments of the second aspect are not described herein.
Additional aspects and advantages of the application will be set forth in part in the description which follows, or may be learned by practice of the application.
Drawings
FIG. 1 illustrates a schematic cross-sectional view of an air guiding structure according to one embodiment of the application;
FIG. 2 illustrates a schematic structural view of an air guiding structure according to an embodiment of the present application;
FIG. 3 shows an enlarged partial schematic view of FIG. 1A;
FIG. 4 illustrates a schematic structural view of an air guiding structure according to an embodiment of the present application;
FIG. 5 illustrates a schematic structural view of an air guiding structure according to an embodiment of the present application;
FIG. 6 illustrates a schematic structural view of a blower assembly according to an embodiment of the application;
fig. 7 illustrates a schematic structure of an air conditioner according to an embodiment of the present application;
FIG. 8 illustrates a graph of a shape curve equation for a curved wind-guiding section according to one embodiment of the application;
fig. 9 shows a schematic structural view of an air guiding structure according to an embodiment of the present application.
The correspondence between the reference numerals and the component names in fig. 1 to 9 is:
100: an air guiding structure; 102: a flat wind guide section; 104: a curved wind guiding section; 106: a first curved section; 108: a second curved section; 110: a cutting section; 112: curve segment angle; 200: a fan structure; 202: a fan blade; 204: an air deflector; 2042: an air port; 300: an air conditioner; 302: a housing.
Detailed Description
In order that the above-recited objects, features and advantages of embodiments of the present application can be more clearly understood, a further detailed description of embodiments of the present application will be rendered by reference to the appended drawings and detailed description thereof. It should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, embodiments of the application may be practiced otherwise than as described herein, and therefore the scope of the application is not limited to the specific embodiments disclosed below.
Some embodiments according to the present application are described below with reference to fig. 1 to 9.
Example 1
As shown in fig. 1 and 2, an air guiding structure 100 according to this embodiment is provided: including a flat wind-guiding section 102 and a curved wind-guiding section 104. The flat wind guiding section 102 is annular, and the curved wind guiding section 104 is connected with one end of the flat wind guiding section 102 along the axial direction. The curvature of the outer edge of the curved wind-guiding section 104 in the direction from the flat wind-guiding section 102 to the curved wind-guiding section 104 varies gradually in the axial section of the flat wind-guiding section 102. The outer edge of the curved wind guiding section 104 is the outer edge of the axial section of the curved wind guiding section 104. When the airflow enters the wind guiding structure 100, the airflow at the edge of the wind guiding structure 100 will first contact the curved wind guiding section 104, then enter the flat wind guiding section 102 along the arc of the curved wind guiding section 104, and then flow out of the wind guiding structure 100 through the flat wind guiding section 102. The curvature of the curved wind-guiding section 104 gradually changes, so that the direction of the air flow changes smoothly in the process of passing through the curved wind-guiding section 104, the air flow has a good diversion effect, turbulence or backflow is not easy to generate, and pressure pulsation of the air flow to the wind-guiding structure 100 caused by unstable air flow can be avoided, so that noise is eliminated.
Further, when air flows from the outside of the flat wind guiding section 102 to the curved wind guiding section 104, since the curvature of the outer edge of the curved wind guiding section 104 is gradually changed, the air flow also smoothly flows through the corresponding position of the curved wind guiding section 104 without turbulence caused by abrupt change of the curvature of the edge.
Generally, for wind-guiding structure 100, airflow will flow from curved wind-guiding section 104 into flat wind-guiding section 102 and out through flat wind-guiding section 102. However, when the amount of air flowing in is large, a part of the air flow may flow out of the curved wind guiding section 104 and out of the flat wind guiding section 102. If other structures block the flow of air at this location, the air flow may flow back to the other side of the curved wind-guiding section 104. Since the curvature of the outer edge of each portion of the outer edge of the curved wind guiding section 104 is gradually changed, the backflow airflow will not form unstable airflow therein, and noise is avoided.
Example two
As shown in fig. 1 and 2, an air guiding structure 100 according to this embodiment is provided: including a flat wind-guiding section 102 and a curved wind-guiding section 104. The flat wind guiding section 102 is annular, and the curved wind guiding section 104 is connected with one end of the flat wind guiding section 102 along the axial direction. The curvature of the outer edge of the curved wind-guiding section 104 in the direction from the flat wind-guiding section 102 to the curved wind-guiding section 104 varies gradually in the axial section of the flat wind-guiding section 102. The outer edge of the curved wind guiding section 104 is the outer edge of the axial section of the curved wind guiding section 104. When the airflow enters the wind guiding structure 100, the airflow at the edge of the wind guiding structure 100 will first contact the curved wind guiding section 104, then enter the flat wind guiding section 102 along the arc of the curved wind guiding section 104, and then flow out of the wind guiding structure 100 through the flat wind guiding section 102. The curvature of the curved wind-guiding section 104 gradually changes, so that the direction of the air flow changes smoothly in the process of passing through the curved wind-guiding section 104, the air flow has a good diversion effect, turbulence or backflow is not easy to generate, and pressure pulsation of the air flow to the wind-guiding structure 100 caused by unstable air flow can be avoided, so that noise is eliminated.
Further, when air flows from the outside of the flat wind guiding section 102 to the curved wind guiding section 104, since the curvature of the outer edge of the curved wind guiding section 104 is gradually changed, the air flow also smoothly flows through the corresponding position of the curved wind guiding section 104 without turbulence caused by abrupt change of the curvature of the edge.
Generally, for wind-guiding structure 100, airflow will flow from curved wind-guiding section 104 into flat wind-guiding section 102 and out through flat wind-guiding section 102. However, when the amount of air flowing in is large, a part of the air flow may flow out of the curved wind guiding section 104 and out of the flat wind guiding section 102. If other structures block the flow of air at this location, the air flow may flow back to the other side of the curved wind-guiding section 104. Since the curvature of the outer edge of each portion of the outer edge of the curved wind guiding section 104 is gradually changed, the backflow airflow will not form unstable airflow therein, and noise is avoided.
Further, the curvature change rate of the outer edge of the curved wind guiding section 104 is the same, that is, the curvature change of the outer edge does not change suddenly and drastically, and a significant corner angle is formed at the outer edge.
Generally, the sudden change of curvature of the outer edge causes turbulence to be generated when the air flow passes, and noise and even vibration are generated, which affects normal use of the device. The curvature change rate of the outer edge is the same, so that the air flow can be kept smooth and noise is reduced when passing through.
Example III
As shown in fig. 1 and 2, an air guiding structure 100 according to this embodiment is provided: including a flat wind-guiding section 102 and a curved wind-guiding section 104. The flat wind guiding section 102 is annular, and the curved wind guiding section 104 is connected with one end of the flat wind guiding section 102 along the axial direction. The curvature of the outer edge of the curved wind-guiding section 104 in the direction from the flat wind-guiding section 102 to the curved wind-guiding section 104 varies gradually in the axial section of the flat wind-guiding section 102. The outer edge of the curved wind guiding section 104 is the outer edge of the axial section of the curved wind guiding section 104. When the airflow enters the wind guiding structure 100, the airflow at the edge of the wind guiding structure 100 will first contact the curved wind guiding section 104, then enter the flat wind guiding section 102 along the arc of the curved wind guiding section 104, and then flow out of the wind guiding structure 100 through the flat wind guiding section 102. The curvature of the curved wind-guiding section 104 gradually changes, so that the direction of the air flow changes smoothly in the process of passing through the curved wind-guiding section 104, the air flow has a good diversion effect, turbulence or backflow is not easy to generate, and pressure pulsation of the air flow to the wind-guiding structure 100 caused by unstable air flow can be avoided, so that noise is eliminated.
Further, when air flows from the outside of the flat wind guiding section 102 to the curved wind guiding section 104, since the curvature of the outer edge of the curved wind guiding section 104 is gradually changed, the air flow also smoothly flows through the corresponding position of the curved wind guiding section 104 without turbulence caused by abrupt change of the curvature of the edge.
Generally, for wind-guiding structure 100, airflow will flow from curved wind-guiding section 104 into flat wind-guiding section 102 and out through flat wind-guiding section 102. However, when the amount of air flowing in is large, a part of the air flow may flow out of the curved wind guiding section 104 and out of the flat wind guiding section 102. If other structures block the flow of air at this location, the air flow may flow back to the other side of the curved wind-guiding section 104. Since the curvature of the outer edge of each portion of the outer edge of the curved wind guiding section 104 is gradually changed, the backflow airflow will not form unstable airflow therein, and noise is avoided.
Further, the curvature change rate of the outer edge of the curved wind guiding section 104 is the same, that is, the curvature change of the outer edge does not change suddenly and drastically, and a significant corner angle is formed at the outer edge.
Generally, the sudden change of curvature of the outer edge causes turbulence to be generated when the air flow passes, and noise and even vibration are generated, which affects normal use of the device. The curvature change rate of the outer edge is the same, so that the air flow can be kept smooth and noise is reduced when passing through.
The curved wind guiding section 104 is connected with one end of the flat wind guiding section 102, the outer edge gradually changes along the curvature in the direction from the flat wind guiding section 102 to the curved wind guiding section 104, and the outer edge gradually turns to be rolled back towards the direction of the flat wind guiding section 102 in the outward extending process and finally is connected with the other side of the axial section of the flat wind guiding section 102, and is gently connected with the inner side and the outer side of the flat wind guiding section 102. Therefore, whether the airflow flows from the curved wind guiding section 104 to the flat wind guiding section 102 or from the flat wind guiding section 102 to the curved wind guiding section 104, the outer edge of the curved wind guiding section 104 with gradually changing curvature can enable the airflow to smoothly flow, and unstable flow of the airflow is avoided when the airflow flows.
Example IV
As shown in fig. 1 and 2, an air guiding structure 100 according to this embodiment is provided: including a flat wind-guiding section 102 and a curved wind-guiding section 104. The flat wind guiding section 102 is annular, and the curved wind guiding section 104 is connected with one end of the flat wind guiding section 102 along the axial direction. The curvature of the outer edge of the curved wind-guiding section 104 in the direction from the flat wind-guiding section 102 to the curved wind-guiding section 104 varies gradually in the axial section of the flat wind-guiding section 102. The outer edge of the curved wind guiding section 104 is the outer edge of the axial section of the curved wind guiding section 104. When the airflow enters the wind guiding structure 100, the airflow at the edge of the wind guiding structure 100 will first contact the curved wind guiding section 104, then enter the flat wind guiding section 102 along the arc of the curved wind guiding section 104, and then flow out of the wind guiding structure 100 through the flat wind guiding section 102. The curvature of the curved wind-guiding section 104 gradually changes, so that the direction of the air flow changes smoothly in the process of passing through the curved wind-guiding section 104, the air flow has a good diversion effect, turbulence or backflow is not easy to generate, and pressure pulsation of the air flow to the wind-guiding structure 100 caused by unstable air flow can be avoided, so that noise is eliminated.
Further, when air flows from the outside of the flat wind guiding section 102 to the curved wind guiding section 104, since the curvature of the outer edge of the curved wind guiding section 104 is gradually changed, the air flow also smoothly flows through the corresponding position of the curved wind guiding section 104 without turbulence caused by abrupt change of the curvature of the edge.
Generally, for wind-guiding structure 100, airflow will flow from curved wind-guiding section 104 into flat wind-guiding section 102 and out through flat wind-guiding section 102. However, when the amount of air flowing in is large, a part of the air flow may flow out of the curved wind guiding section 104 and out of the flat wind guiding section 102. If other structures block the flow of air at this location, the air flow may flow back to the other side of the curved wind-guiding section 104. Since the curvature of the outer edge of each portion of the outer edge of the curved wind guiding section 104 is gradually changed, the backflow airflow will not form unstable airflow therein, and noise is avoided.
Further, the curvature change rate of the outer edge of the curved wind guiding section 104 is the same, that is, the curvature change of the outer edge does not change suddenly and drastically, and a significant corner angle is formed at the outer edge.
Generally, the sudden change of curvature of the outer edge causes turbulence to be generated when the air flow passes, and noise and even vibration are generated, which affects normal use of the device. The curvature change rate of the outer edge is the same, so that the air flow can be kept smooth and noise is reduced when passing through.
Further, the curved wind guiding section 104 is connected to one end of the flat wind guiding section 102, the outer edge gradually changes along the curvature from the flat wind guiding section 102 to the curved wind guiding section 104, and the outer edge gradually turns to be rolled back towards the direction of the flat wind guiding section 102 in the process of extending outwards, and finally is connected to the other side of the axial section of the flat wind guiding section 102, and is gently connected to the inner side and the outer side of the flat wind guiding section 102. Therefore, whether the airflow flows from the curved wind guiding section 104 to the flat wind guiding section 102 or from the flat wind guiding section 102 to the curved wind guiding section 104, the outer edge of the curved wind guiding section 104 with gradually changing curvature can enable the airflow to smoothly flow, and unstable flow of the airflow is avoided when the airflow flows.
Further, on the axial cross section of the flat wind guiding section 102, the cross section shape of the curved wind guiding section 104 is a symmetrical pattern. It will be appreciated that this configuration allows for a stable flow of air flow, whether it be from within the air guiding structure 100 or from outside the air guiding structure 100.
In addition, the symmetrical structure is easier to process than the asymmetrical structure, which can reduce the complexity of the device structure and the manufacturing cost of the device.
Example five
As shown in fig. 1 and 2, an air guiding structure 100 according to this embodiment is provided: including a flat wind-guiding section 102 and a curved wind-guiding section 104. The flat wind guiding section 102 is annular, and the curved wind guiding section 104 is connected with one end of the flat wind guiding section 102 along the axial direction. The curvature of the outer edge of the curved wind-guiding section 104 in the direction from the flat wind-guiding section 102 to the curved wind-guiding section 104 varies gradually in the axial section of the flat wind-guiding section 102. The outer edge of the curved wind guiding section 104 is the outer edge of the axial section of the curved wind guiding section 104. When the airflow enters the wind guiding structure 100, the airflow at the edge of the wind guiding structure 100 will first contact the curved wind guiding section 104, then enter the flat wind guiding section 102 along the arc of the curved wind guiding section 104, and then flow out of the wind guiding structure 100 through the flat wind guiding section 102. The curvature of the curved wind-guiding section 104 gradually changes, so that the direction of the air flow changes smoothly in the process of passing through the curved wind-guiding section 104, the air flow has a good diversion effect, turbulence or backflow is not easy to generate, and pressure pulsation of the air flow to the wind-guiding structure 100 caused by unstable air flow can be avoided, so that noise is eliminated.
Further, when air flows from the outside of the flat wind guiding section 102 to the curved wind guiding section 104, since the curvature of the outer edge of the curved wind guiding section 104 is gradually changed, the air flow also smoothly flows through the corresponding position of the curved wind guiding section 104 without turbulence caused by abrupt change of the curvature of the edge.
Generally, for wind-guiding structure 100, airflow will flow from curved wind-guiding section 104 into flat wind-guiding section 102 and out through flat wind-guiding section 102. However, when the amount of air flowing in is large, a part of the air flow may flow out of the curved wind guiding section 104 and out of the flat wind guiding section 102. If other structures block the flow of air at this location, the air flow may flow back to the other side of the curved wind-guiding section 104. Since the curvature of the outer edge of each portion of the outer edge of the curved wind guiding section 104 is gradually changed, the backflow airflow will not form unstable airflow therein, and noise is avoided.
Further, the curvature change rate of the outer edge of the curved wind guiding section 104 is the same, that is, the curvature change of the outer edge does not change suddenly and drastically, and a significant corner angle is formed at the outer edge.
Generally, the sudden change of curvature of the outer edge causes turbulence to be generated when the air flow passes, and noise and even vibration are generated, which affects normal use of the device. The curvature change rate of the outer edge is the same, so that the air flow can be kept smooth and noise is reduced when passing through.
Further, the curved wind guiding section 104 is connected to one end of the flat wind guiding section 102, the outer edge gradually changes along the curvature from the flat wind guiding section 102 to the curved wind guiding section 104, and the outer edge gradually turns to be rolled back towards the direction of the flat wind guiding section 102 in the process of extending outwards, and finally is connected to the other side of the axial section of the flat wind guiding section 102, and is gently connected to the inner side and the outer side of the flat wind guiding section 102. Therefore, whether the airflow flows from the curved wind guiding section 104 to the flat wind guiding section 102 or from the flat wind guiding section 102 to the curved wind guiding section 104, the outer edge of the curved wind guiding section 104 with gradually changing curvature can enable the airflow to smoothly flow, and unstable flow of the airflow is avoided when the airflow flows.
Further, on the axial cross section of the flat wind guiding section 102, the cross section shape of the curved wind guiding section 104 is a symmetrical pattern. It will be appreciated that this configuration allows for a stable flow of air flow, whether it be from within the air guiding structure 100 or from outside the air guiding structure 100.
In addition, the symmetrical structure is easier to process than the asymmetrical structure, which can reduce the complexity of the device structure and the manufacturing cost of the device.
Further, the curvature of the outer edge of the curved wind-guiding section 104 may be different at different locations. As shown in fig. 3, the direction from the flat wind guiding section 102 to the curved wind guiding section 104 may be set as the initial direction, and an included angle is formed between the initial direction and a connecting line between the connecting point of the flat wind guiding section 102 and the curved wind guiding section 104 and the outer edge of the curved wind guiding section 104. The curvature of the corresponding outer edge position will also change correspondingly with the different included angles. The position with the largest curvature is located between 30 and 60 degrees with the included angle of the initial direction, namely the position with the largest curvature of the outline of the curved wind guiding section 104 is located between 30 and 60 degrees with the extending direction of the flat wind guiding section.
Generally, the airflow will flow from the curved wind guiding section 104 to the flat wind guiding section 102, and thus will first pass through the curved wind guiding section 104. It will be appreciated that the location of maximum curvature is located at an angle of 30 deg. to 60 deg. from the original direction, i.e. indicating that the curved wind-guiding section 104 is of an open configuration. Such a configuration enables a greater range of airflow to be directed from the curved wind-guiding section 104 to the flat wind-guiding section 102. At the same time, at the position of maximum curvature, the curvature is gradually changed, so that the airflow is not unstable due to the sudden change of the curvature at the position.
Further, the gradually increasing curvature of the outer edge of the curved wind guiding section 104 gradually turns the outer edge back and finally contacts and meets the outer edge of the flat wind guiding section 102. The entire curved wind guiding section 104 forms a complete closed curve on the outer edge of the curved wind guiding section 104 on the section of the axis of the flat wind guiding section 102.
This configuration allows the curved wind-guiding section 104 to be stable against any direction of airflow.
Example six
As shown in fig. 1 and 2, an air guiding structure 100 according to this embodiment is provided: including a flat wind-guiding section 102 and a curved wind-guiding section 104. The flat wind guiding section 102 is annular, and the curved wind guiding section 104 is connected with one end of the flat wind guiding section 102 along the axial direction. The curvature of the outer edge of the curved wind-guiding section 104 in the direction from the flat wind-guiding section 102 to the curved wind-guiding section 104 varies gradually in the axial section of the flat wind-guiding section 102. The outer edge of the curved wind guiding section 104 is the outer edge of the axial section of the curved wind guiding section 104. When the airflow enters the wind guiding structure 100, the airflow at the edge of the wind guiding structure 100 will first contact the curved wind guiding section 104, then enter the flat wind guiding section 102 along the arc of the curved wind guiding section 104, and then flow out of the wind guiding structure 100 through the flat wind guiding section 102. The curvature of the curved wind-guiding section 104 gradually changes, so that the direction of the air flow changes smoothly in the process of passing through the curved wind-guiding section 104, the air flow has a good diversion effect, turbulence or backflow is not easy to generate, and pressure pulsation of the air flow to the wind-guiding structure 100 caused by unstable air flow can be avoided, so that noise is eliminated.
Further, when air flows from the outside of the flat wind guiding section 102 to the curved wind guiding section 104, since the curvature of the outer edge of the curved wind guiding section 104 is gradually changed, the air flow also smoothly flows through the corresponding position of the curved wind guiding section 104 without turbulence caused by abrupt change of the curvature of the edge.
Generally, for wind-guiding structure 100, airflow will flow from curved wind-guiding section 104 into flat wind-guiding section 102 and out through flat wind-guiding section 102. However, when the amount of air flowing in is large, a part of the air flow may flow out of the curved wind guiding section 104 and out of the flat wind guiding section 102. If other structures block the flow of air at this location, the air flow may flow back to the other side of the curved wind-guiding section 104. Since the curvature of the outer edge of each portion of the outer edge of the curved wind guiding section 104 is gradually changed, the backflow airflow will not form unstable airflow therein, and noise is avoided.
Further, the curvature change rate of the outer edge of the curved wind guiding section 104 is the same, that is, the curvature change of the outer edge does not change suddenly and drastically, and a significant corner angle is formed at the outer edge.
Generally, the sudden change of curvature of the outer edge causes turbulence to be generated when the air flow passes, and noise and even vibration are generated, which affects normal use of the device. The curvature change rate of the outer edge is the same, so that the air flow can be kept smooth and noise is reduced when passing through.
Further, the curved wind guiding section 104 is connected to one end of the flat wind guiding section 102, the outer edge gradually changes along the curvature from the flat wind guiding section 102 to the curved wind guiding section 104, and the outer edge gradually turns to be rolled back towards the direction of the flat wind guiding section 102 in the process of extending outwards, and finally is connected to the other side of the axial section of the flat wind guiding section 102, and is gently connected to the inner side and the outer side of the flat wind guiding section 102. Therefore, whether the airflow flows from the curved wind guiding section 104 to the flat wind guiding section 102 or from the flat wind guiding section 102 to the curved wind guiding section 104, the outer edge of the curved wind guiding section 104 with gradually changing curvature can enable the airflow to smoothly flow, and unstable flow of the airflow is avoided when the airflow flows.
Further, on the axial cross section of the flat wind guiding section 102, the cross section shape of the curved wind guiding section 104 is a symmetrical pattern. It will be appreciated that this configuration allows for a stable flow of air flow, whether it be from within the air guiding structure 100 or from outside the air guiding structure 100.
In addition, the symmetrical structure is easier to process than the asymmetrical structure, which can reduce the complexity of the device structure and the manufacturing cost of the device.
Further, the curvature of the outer edge of the curved wind-guiding section 104 may be different at different locations. As shown in fig. 3, the direction from the flat wind guiding section 102 to the curved wind guiding section 104 is the initial direction, and an included angle is formed between the initial direction and a connecting line between the connecting point of the flat wind guiding section 102 and the curved wind guiding section 104 and the outer edge of the curved wind guiding section 104. The curvature of the corresponding outer edge position will also change correspondingly with the different included angles. The position with the largest curvature is positioned at an included angle of 30-60 degrees with the initial direction.
Generally, the airflow will flow from the curved wind guiding section 104 to the flat wind guiding section 102, and thus will first pass through the curved wind guiding section 104. It will be appreciated that the location of maximum curvature is located at an angle of 30 deg. to 60 deg. from the original direction, i.e. indicating that the curved wind-guiding section 104 is of an open configuration. Such a configuration enables a greater range of airflow to be directed from the curved wind-guiding section 104 to the flat wind-guiding section 102. At the same time, at the position of maximum curvature, the curvature is gradually changed, so that the airflow is not unstable due to the sudden change of the curvature at the position.
Further, the gradually increasing curvature of the outer edge of the curved wind guiding section 104 gradually turns the outer edge back and finally contacts and meets the outer edge of the flat wind guiding section 102. The entire curved wind guiding section 104 forms a complete closed curve on the outer edge of the curved wind guiding section 104 on the section of the axis of the flat wind guiding section 102.
This configuration allows the curved wind-guiding section 104 to be stable against any direction of airflow.
Further, as shown in fig. 4, one or more first curved sections 106 and one or more second curved sections 108 are provided in the circumferential direction of the flat wind guiding section 102. The first curved section 106 and the second curved section 108 have different cross-sectional shapes, so that the curved wind guiding section 104 can better cooperate with other structures in the device and guide the airflow of different curved sections.
Here, the cross-sectional shape may be different, and the geometric shape may be different, or the shape and area may be different. It will be appreciated that, for circumferentially adjacent positions of the wind-guiding ring, if other structures in the apparatus are closer to the curved wind-guiding section 104 of the wind-guiding ring, the positions of the corresponding curved sections may be changed, so that the curved wind-guiding section 104 may be compactly mounted with other structures in the apparatus.
Further, the first curved section 106 and the second curved section 108 are disposed adjacent to each other, so that the whole curved wind guiding section 104 has a gentle edge structure, and the curved wind guiding section 104 is not discontinuous due to the disconnection between the first curved section 106 and the second curved section 108, so as to affect the wind guiding effect of the wind guiding structure 100.
Example seven
As shown in fig. 1 and 2, an air guiding structure 100 according to this embodiment is provided: including a flat wind-guiding section 102 and a curved wind-guiding section 104. The flat wind guiding section 102 is annular, and the curved wind guiding section 104 is connected with one end of the flat wind guiding section 102 along the axial direction. The curvature of the outer edge of the curved wind-guiding section 104 in the direction from the flat wind-guiding section 102 to the curved wind-guiding section 104 varies gradually in the axial section of the flat wind-guiding section 102. The outer edge of the curved wind guiding section 104 is the outer edge of the axial section of the curved wind guiding section 104. When the airflow enters the wind guiding structure 100, the airflow at the edge of the wind guiding structure 100 will first contact the curved wind guiding section 104, then enter the flat wind guiding section 102 along the arc of the curved wind guiding section 104, and then flow out of the wind guiding structure 100 through the flat wind guiding section 102. The curvature of the curved wind-guiding section 104 gradually changes, so that the direction of the air flow changes smoothly in the process of passing through the curved wind-guiding section 104, the air flow has a good diversion effect, turbulence or backflow is not easy to generate, and pressure pulsation of the air flow to the wind-guiding structure 100 caused by unstable air flow can be avoided, so that noise is eliminated.
Further, when air flows from the outside of the flat wind guiding section 102 to the curved wind guiding section 104, since the curvature of the outer edge of the curved wind guiding section 104 is gradually changed, the air flow also smoothly flows through the corresponding position of the curved wind guiding section 104 without turbulence caused by abrupt change of the curvature of the edge.
Generally, for wind-guiding structure 100, airflow will flow from curved wind-guiding section 104 into flat wind-guiding section 102 and out through flat wind-guiding section 102. However, when the amount of air flowing in is large, a part of the air flow may flow out of the curved wind guiding section 104 and out of the flat wind guiding section 102. If other structures block the flow of air at this location, the air flow may flow back to the other side of the curved wind-guiding section 104. Since the curvature of the outer edge of each portion of the outer edge of the curved wind guiding section 104 is gradually changed, the backflow airflow will not form unstable airflow therein, and noise is avoided.
Further, the curvature change rate of the outer edge of the curved wind guiding section 104 is the same, that is, the curvature change of the outer edge does not change suddenly and drastically, and a significant corner angle is formed at the outer edge.
Generally, the sudden change of curvature of the outer edge causes turbulence to be generated when the air flow passes, and noise and even vibration are generated, which affects normal use of the device. The curvature change rate of the outer edge is the same, so that the air flow can be kept smooth and noise is reduced when passing through.
Further, the curved wind guiding section 104 is connected to one end of the flat wind guiding section 102, the outer edge gradually changes along the curvature from the flat wind guiding section 102 to the curved wind guiding section 104, and the outer edge gradually turns to be rolled back towards the direction of the flat wind guiding section 102 in the process of extending outwards, and finally is connected to the other side of the axial section of the flat wind guiding section 102, and is gently connected to the inner side and the outer side of the flat wind guiding section 102. Therefore, whether the airflow flows from the curved wind guiding section 104 to the flat wind guiding section 102 or from the flat wind guiding section 102 to the curved wind guiding section 104, the outer edge of the curved wind guiding section 104 with gradually changing curvature can enable the airflow to smoothly flow, and unstable flow of the airflow is avoided when the airflow flows.
Further, on the axial cross section of the flat wind guiding section 102, the cross section shape of the curved wind guiding section 104 is a symmetrical pattern. It will be appreciated that this configuration allows for a stable flow of air flow, whether it be from within the air guiding structure 100 or from outside the air guiding structure 100.
In addition, the symmetrical structure is easier to process than the asymmetrical structure, which can reduce the complexity of the device structure and the manufacturing cost of the device.
Further, the curvature of the outer edge of the curved wind-guiding section 104 may be different at different locations. As shown in fig. 3, the direction from the flat wind guiding section 102 to the curved wind guiding section 104 is the initial direction, and an included angle is formed between the initial direction and a connecting line between the connecting point of the flat wind guiding section 102 and the curved wind guiding section 104 and the outer edge of the curved wind guiding section 104. The curvature of the corresponding outer edge position will also change correspondingly with the different included angles. The position with the largest curvature is positioned at an included angle of 30-60 degrees with the initial direction.
Generally, the airflow will flow from the curved wind guiding section 104 to the flat wind guiding section 102, and thus will first pass through the curved wind guiding section 104. It will be appreciated that the location of maximum curvature is located at an angle of 30 deg. to 60 deg. from the original direction, i.e. indicating that the curved wind-guiding section 104 is of an open configuration. Such a configuration enables a greater range of airflow to be directed from the curved wind-guiding section 104 to the flat wind-guiding section 102. At the same time, at the position of maximum curvature, the curvature is gradually changed, so that the airflow is not unstable due to the sudden change of the curvature at the position.
Further, the gradually increasing curvature of the outer edge of the curved wind guiding section 104 gradually turns the outer edge back and finally contacts and meets the outer edge of the flat wind guiding section 102. The entire curved wind guiding section 104 forms a complete closed curve on the outer edge of the curved wind guiding section 104 on the section of the axis of the flat wind guiding section 102.
This configuration allows the curved wind-guiding section 104 to be stable against any direction of airflow.
Further, as shown in fig. 4, one or more first curved sections 106 and one or more second curved sections 108 are provided in the circumferential direction of the flat wind guiding section 102. The first curved section 106 and the second curved section 108 have different cross-sectional shapes, so that the curved wind guiding section 104 can better cooperate with other structures in the device and guide the airflow of different curved sections.
Here, the cross-sectional shape may be different, and the geometric shape may be different, or the shape and area may be different. It will be appreciated that, for circumferentially adjacent positions of the wind-guiding ring, if other structures in the apparatus are closer to the curved wind-guiding section 104 of the wind-guiding ring, the positions of the corresponding curved sections may be changed, so that the curved wind-guiding section 104 may be compactly mounted with other structures in the apparatus.
Further, the first curved section 106 and the second curved section 108 are disposed adjacent to each other, so that the whole curved wind guiding section 104 has a gentle edge structure, and the curved wind guiding section 104 is not discontinuous due to the disconnection between the first curved section 106 and the second curved section 108, so as to affect the wind guiding effect of the wind guiding structure 100.
Further, the cross-sectional dimensions of the curved wind guiding section 104 are the same along the circumferential direction of the flat wind guiding section 102, i.e. the cross-sectional dimensions of the curved wind guiding section 104 are the same at each location. This configuration allows the curved wind guiding section 104 to have the same or similar wind guiding capability at different positions in the circumferential direction of the wind guiding structure 100.
Further, the flat wind guiding section 102 and the curved wind guiding section 104 are integrally formed, and compared with other connection modes, the structure has higher mechanical strength. The joints are smoother, and the flow of the air flow is not affected. When the air flow impacts the air guiding structure 100, the air flow and the air guiding structure are integrally formed, so that the shock resistance is stronger, and noise is not formed. In addition, the flat wind guiding section 102 and the curved wind guiding section 104 of the wind guiding structure 100 are integrally formed, so that the installation and maintenance of the wind guiding structure 100 are more convenient.
Further, as shown in fig. 5, one or more cutting portions 110 are provided on the curved wind guiding section 104, and the radial dimension of the cutting portion 110 is smaller than that of the other portions. It can be appreciated that the cutting portion 110 is provided, so that the curved wind guiding section 104 does not occupy too much space at the outer edge of the cutting portion 110, which is convenient for compact installation with other structures in the device, and reduces the volume of the device.
Example eight
As shown in fig. 6, a fan structure 200 according to this embodiment includes at least one fan blade 202, and any of the air guiding structures 100 according to any of the above embodiments is sleeved outside the fan blade 202. As fan blades 202 rotate, wind-guiding structure 100 may guide wind to fan structure 200.
The fan structure 200 adopts a disrotatory axial flow fan, that is, the number of the fan blades 202 is two, the two fan blades 202 are arranged along the axial direction of the fan blades 202, and the rotation directions of the two fan blades 202 are opposite. Such a blower configuration 200 may use the same power to generate a greater wind than a conventional blower. Further, the volume of such a blower structure 200 may be smaller for the same amount of air.
The fan structure 200 further includes an air deflector 204, and the edge of the air gap 2042 on the air deflector 204 is connected to the flat air guide 102. The air deflection 204 may be used to secure the air deflection structure 100. In addition, the air vents 2042 of the air deflection 204 are connected to the edges of the flat air deflection section 102 such that the air flow from the flat air deflection section 102 of the air deflection structure 100 is ultimately exhausted from the air vents 2042.
In addition, the fan structure 200 includes any of the air guiding structures 100 of any of the above embodiments, so any of the beneficial effects of any of the above embodiments are not described herein.
Example nine
As shown in fig. 7, an air conditioner 300 according to this embodiment includes a housing 302, and a fan structure 200 according to any of the above embodiments is disposed in the housing 302. The fan structure 200 includes any of the air guiding structures 100 of any of the above embodiments, so any of the above advantages of any of the above embodiments are not described herein.
Examples ten
As shown in fig. 1, the air guide ring (i.e., the air guide structure 100) provided in this embodiment is applicable to a disrotatory air conditioner external unit in which the distance between the air guide ring and the heat exchanger is greater than 30mm, and has effects of reducing noise and power.
The wind-guiding ring includes straight section (i.e. flat wind-guiding section 102) and curve section (i.e. curved wind-guiding section 104), and compared with the prior art, the main change point is the design of curve section:
the curve section of the traditional wind guide ring is mostly constant curvature or curvature approximation, and the shape is mostly a quarter of an arc. In this embodiment, the curve segment is designed as a continuously variable curve, and the angle shown in the figure is defined as the maximum curvature angle, and the angle is preferably in the range of 30-60 degrees. The curvature continuously decreases from the maximum curvature angle position to both sides. The shape of the curve segment approximately satisfies the equation (x 2 +y 2 ) 2 ＝a 2 (x 2 -y 2 ). The curved section of the wind-guiding ring expands in scope and extends backwards until intersecting with the horizontal section. The value of a can be flexibly selected according to specific use environment and air volume requirements, and of course, a is a constant.
A better solution is shown in fig. 9, where the initial angle of the curve segment angle 112 is defined as 0 °, where 45 °,135 °,225 °,315 ° adopts a larger curve segment shape, and 0 °,90 °,180 °,270 ° adopts a smaller curve segment shape, and the middle is uniformly transited, and finally cutting is performed according to the installation requirement.
The larger curve section and the smaller curve section have the same shape but different sizes, namely the cross section shapes of the larger curve section and the smaller curve section are formed by scaling in equal proportion.
In the experiment of the disrotatory outer machine with three functions realized by using two machine boxes, the power consumption of the fan is reduced by more than 5% from the traditional air guide ring to the air guide ring in the embodiment, and the noise is reduced by more than 1.5 dB.
According to the embodiment of the air guide structure, the fan structure and the air conditioner, the curvature of the curved air guide section of the air guide structure is gradually changed, so that the direction change of air flow is gentle in the process of passing through the curved air guide section, the air guide structure has a good flow guiding effect, turbulence or backflow is not easy to generate, pressure pulsation of the air flow to the air guide structure caused by unstable air flow can be avoided, and noise is further eliminated. When the air guide structure is used for the fan structure and the air conditioner, the power consumption of the fan and the air conditioner can be reduced, and the noise is eliminated.
In the present application, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more, unless expressly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present application, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or units referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present application.
In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present application, and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (14)

1. An air guiding structure, characterized by comprising:
an annular flat wind guide section;
a curved wind guiding section connected with one end of the flat wind guiding section along the axial direction,
wherein, on a section perpendicular to the axis of the flat wind guiding section, the outer edge of the curved wind guiding section gradually changes in curvature along the direction from the flat wind guiding section to the curved wind guiding section;
the rate of change of curvature of the outer edge of at least some of the curved wind-guiding segments is the same.
2. The wind-guiding structure of claim 1, wherein an end of the curved wind-guiding section remote from the flat wind-guiding section extends outwardly until intersecting the flat wind-guiding section.
3. The wind-guiding structure of claim 1, wherein the curved wind-guiding section has a symmetrical pattern in a cross-section passing through an axis of the flat wind-guiding section.
4. The wind-guiding structure of claim 1, wherein the position of maximum curvature of the profile of the curved wind-guiding section is between 30 ° and 60 ° of the extension direction of the flat wind-guiding section.
5. The wind-guiding structure of claim 1, wherein the curvature of the outer edge of the curved wind-guiding section gradually increases.
6. The wind-guiding structure of claim 1, wherein the curved wind-guiding section specifically comprises:
at least one first curved section and at least one second curved section arranged along the circumference of the flat wind guiding section,
wherein the cross-sectional shape of the first curved section is different from the cross-sectional shape of the second curved section in a cross-section perpendicular to the axis of the flat wind-guiding section.
7. The air guiding structure of claim 6, wherein the first curved section and the second curved section are disposed adjacent.
8. The wind-guiding structure of claim 1, wherein the curved wind-guiding section has the same cross-sectional dimension in a cross-section passing through an axis of the flat wind-guiding section along a circumferential direction of the flat wind-guiding section.
9. The wind-guiding structure of claim 1, wherein the flat wind-guiding section is integrally formed with the curved wind-guiding section.
10. The air guiding structure of claim 1, further comprising:
at least one cutting part is arranged on the curved wind guiding section, and the radial dimension of the curved wind guiding section positioned on the cutting part is smaller than that of other parts.
11. A fan structure, comprising:
at least one fan blade;
the wind guiding structure of any one of claims 1 to 10, being sleeved outside the fan blade.
12. The fan structure according to claim 11, wherein the number of the fan blades is two, the two fan blades are arranged along the axial direction of the fan blades, and the rotation directions of the two fan blades are opposite.
13. The blower structure of claim 11, further comprising:
the air guide plate is provided with an air outlet, and the flat air guide section of the air guide structure is connected with the edge of the air outlet.
14. An air conditioner, comprising:
a housing;
the fan structure according to any one of claims 11 to 13, provided within the housing.
CN202011630064.1A 2020-12-30 2020-12-30 Air guide structure, fan structure and air conditioner Active CN114688717B (en)

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