CN114688717A - Wind-guiding structure, fan structure and air conditioner - Google Patents
Wind-guiding structure, fan structure and air conditioner Download PDFInfo
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- CN114688717A CN114688717A CN202011630064.1A CN202011630064A CN114688717A CN 114688717 A CN114688717 A CN 114688717A CN 202011630064 A CN202011630064 A CN 202011630064A CN 114688717 A CN114688717 A CN 114688717A
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- 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
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- 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
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- 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
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Air-Flow Control Members (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The embodiment of the invention 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 bent air guide section is connected with one end of the flat air guide section along the axial direction, wherein on a section perpendicular to the axial line of the flat air guide section, the curvature of the outer edge of the bent air guide section along the direction from the flat air guide section to the bent air guide section is gradually changed. According to the technical scheme, the curvature of the curved air guide section of the air guide structure is gradually changed, so that the direction of the air flow is changed smoothly in the process that the air flow passes through the curved air guide section, the air guide structure has a good flow guide effect, turbulence or backflow is not easy to generate, pressure pulsation of the air flow on the air guide structure caused by unstable air flow can be avoided, and noise is eliminated.
Description
Technical Field
The invention 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 guide ring of the air conditioner in the prior art is composed of a straight section and a curve section, and the curve section in the prior art is mostly a quarter circular arc. The air guide ring can not play a good role in guiding the air flow entering the air guide ring, the air flow is easy to be unstable, noise is formed, and the power consumption of the air conditioning equipment is increased.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art.
In view of this, a first aspect of the embodiments of the present invention provides an air guiding structure.
A second aspect of an embodiment of the present invention provides a fan structure.
A third aspect of embodiments of the present invention provides an air conditioner.
In order to achieve the above object, an embodiment of a first aspect of the present invention provides an air guiding structure, including: a flat wind guide section in an annular shape; and the curved air guiding section is connected with one end of the flat air guiding section along the axial direction, wherein on a section perpendicular to the axial line of the flat air guiding section, the curvature of the outer edge of the curved air guiding section along the direction from the flat air guiding section to the curved air guiding section is gradually changed.
According to an embodiment of the first aspect of the present invention, a wind guiding structure is provided, which includes a flat wind guiding section and a curved wind guiding section. The flat wind guiding section is annular, and the curved wind guiding section is connected with one end of the flat wind guiding section along the axial direction. On the axial line section of the flat air guiding section, the curvature of the outer edge of the curved air guiding section along the direction from the flat air guiding section to the curved air guiding section is gradually changed. The outer edge of the curved wind guide section is the outer edge of the axial section of the curved wind guide section. When the air current got into wind-guiding structure, the air current at wind-guiding structure edge can contact bent wind-guiding section at first, then can follow the pitch arc entering flat wind-guiding section of bent wind-guiding section, again through flat wind-guiding section outflow wind-guiding structure. The camber gradual change of bent wind-guiding section for the air current is at the in-process through bent wind-guiding section, and the direction change of air current is comparatively mild, has fine water conservancy diversion effect, is difficult for producing torrent or backward flow, can avoid leading to the air current to produce pressure pulsation to the wind-guiding structure because of the air current is unstable, and then the noise abatement.
Further, when the air flow flows from the outside of the flat air guide section to the curved air guide section, the curvature of the outer edge of the curved air guide section gradually changes, so that the air flow also smoothly flows through the corresponding position of the curved air guide section, and turbulence is not generated due to sudden change of the curvature of the edge.
Generally, in the wind guide structure, the airflow flows into the flat wind guide section from the curved wind guide section and flows out through the flat wind guide section. However, when the amount of air flowing in is large, a part of the air flow may flow out of the curved air guide section and reach the outside of the flat air guide section. If other structures create a blockage to the direction of the airflow at this location, the airflow may create a backflow to the other side of the curved wind guide section. Because the curvatures of the outer edges of all parts of the outer edges of the curved air guiding sections are gradually changed, the backflow air flow cannot form unstable air flow, and noise is avoided.
An embodiment of a second aspect of the present invention provides a fan structure, including: at least one fan blade; as mentioned above, in the first aspect of the present invention, the air guiding structure is sleeved outside the fan blades.
According to a second aspect of the present invention, a fan structure includes at least one fan blade, and the wind guiding structure is disposed outside the fan blade. When the flabellum rotated, wind-guiding structure can carry out the wind-guiding to fan structure.
In addition, the fan structure includes any one of the wind guide structures of the first aspect, so that any one of the beneficial effects of the embodiments of the first aspect is achieved, and details are not repeated herein.
An embodiment of a third aspect of the present invention provides an air conditioner, comprising: a housing; any of the fan structures of the above second aspect embodiments is disposed in the housing.
According to a third aspect of the present invention, there is provided an air conditioner including a housing, and a blower structure as described in any one of the above second aspect of the present invention, disposed in the housing.
In addition, the fan structure includes any fan structure of the above-mentioned second aspect, so has any beneficial effect of the above-mentioned second aspect embodiment, and is not repeated here.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a schematic cross-sectional view of a wind guide structure according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram illustrating a wind guide structure according to an embodiment of the present invention;
FIG. 3 shows an enlarged partial schematic view of A of FIG. 1;
fig. 4 is a schematic structural diagram illustrating a wind guide structure according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram illustrating a wind guide structure according to an embodiment of the present invention;
FIG. 6 illustrates a schematic structural view of a fan assembly according to one embodiment of the present invention;
fig. 7 is a schematic structural view illustrating an air conditioner according to an embodiment of the present invention;
FIG. 8 illustrates a graph of shape curve equations for a curved wind guiding segment in accordance with an embodiment of the present invention;
fig. 9 is a schematic structural diagram illustrating a wind guiding structure according to an embodiment of the present invention.
Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 9 is:
100: a wind guide structure; 102: a flat wind guiding section; 104: a curved wind guiding section; 106: a first curved segment; 108: a second curved segment; 110: a cutting section; 112: a curve segment angle; 200: a fan structure; 202: a fan blade; 204: an air deflector; 2042: an air passing port; 300: an air conditioner; 302: a housing.
Detailed Description
In order that the above objects, features and advantages of the embodiments of the present invention can be more clearly understood, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
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 present invention may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited to the specific embodiments disclosed below.
Some embodiments according to the invention are described below with reference to fig. 1 to 9.
Example one
As shown in fig. 1 and fig. 2, the air guiding structure 100 of the present embodiment: including flat wind guiding segments 102 and curved wind guiding segments 104. The flat wind guide section 102 is annular, and the curved wind guide section 104 is connected to one end of the flat wind guide section 102 in the axial direction. In an axial cross section of the flat wind guide section 102, the curvature of the outer edge of the curved wind guide section 104 in the direction from the flat wind guide section 102 to the curved wind guide section 104 gradually changes. The outer edge of the guiding section 104 is the outer edge of the axial section of the guiding section 104. When the air flow enters the air guiding structure 100, the air flow at the edge of the air guiding structure 100 first contacts the curved air guiding section 104, then enters the flat air guiding section 102 along the arc of the curved air guiding section 104, and then flows out of the air guiding structure 100 through the flat air guiding section 102. The camber gradual change of bent wind guide section 104 for the air current is at the in-process through bent wind guide section 104, and the direction change of air current is comparatively gentle, has fine water conservancy diversion effect, is difficult for producing torrent or backward flow, can avoid leading to the air current to produce pressure pulsation to wind guide structure 100 because of the air current is unstable, and then the noise abatement.
Further, when the air flow flows from the outside of the flat air guide section 102 to the curved air guide section 104, the curvature of the outer edge of the curved air guide section 104 gradually changes, so that the air flow smoothly flows through the corresponding position of the curved air guide section 104, and turbulence is not generated due to the sudden change of the curvature of the edge.
Generally, in wind guiding structure 100, the airflow flows into flat wind guiding section 102 from curved wind guiding section 104, and flows out through flat wind guiding section 102. However, when the amount of the air flowing in is large, a part of the air may flow out of the curved air guiding section 104 and reach the outside of the flat air guiding section 102. If other structures create a blockage to the direction of the airflow at this location, the airflow may create a backflow to the other side of the serpentine wind segment 104. Because the curvatures of the outer edges of all parts of the outer edges of the curved air guiding sections 104 are gradually changed, the backflow air flow cannot form unstable air flow, and noise is avoided.
Example two
As shown in fig. 1 and fig. 2, the air guiding structure 100 of the present embodiment: including flat wind guiding segments 102 and curved wind guiding segments 104. The flat wind guide section 102 is annular, and the curved wind guide section 104 is connected to one end of the flat wind guide section 102 in the axial direction. In an axial cross section of the flat wind guide section 102, the curvature of the outer edge of the curved wind guide section 104 in the direction from the flat wind guide section 102 to the curved wind guide section 104 gradually changes. The outer edge of the guiding section 104 is the outer edge of the axial section of the guiding section 104. When the air flow enters the air guiding structure 100, the air flow at the edge of the air guiding structure 100 first contacts the curved air guiding section 104, then enters the flat air guiding section 102 along the arc of the curved air guiding section 104, and then flows out of the air guiding structure 100 through the flat air guiding section 102. The camber gradual change of bent wind guide section 104 for the air current is at the in-process through bent wind guide section 104, and the direction change of air current is comparatively gentle, has fine water conservancy diversion effect, is difficult for producing torrent or backward flow, can avoid leading to the air current to produce pressure pulsation to wind guide structure 100 because of the air current is unstable, and then the noise abatement.
Further, when the air flow flows from the outside of the flat air guide section 102 to the curved air guide section 104, the curvature of the outer edge of the curved air guide section 104 gradually changes, so that the air flow smoothly flows through the corresponding position of the curved air guide section 104, and turbulence is not generated due to the sudden change of the curvature of the edge.
Generally, in the wind guiding structure 100, the airflow flows into the flat wind guiding section 102 from the curved wind guiding section 104 and flows out through the flat wind guiding section 102. However, if the amount of the incoming air is large, a part of the air may flow out of the curved air guiding section 104 and reach the flat air guiding section 102. If other structures create a blockage to the direction of the airflow at this location, the airflow may create a backflow to the other side of the serpentine wind segment 104. Because the curvatures of the outer edges of all parts of the outer edges of the curved air guiding sections 104 are gradually changed, the backflow air flow cannot form unstable air flow, and noise is avoided.
Further, the curvature change rate of the outer edge of the guiding section 104 is the same, that is, the curvature of the outer edge does not change suddenly and sharply, and a sharp corner is formed at the outer edge.
Generally speaking, the sudden change of curvature of the outer edge can cause the air flow to form turbulence when passing through, thereby forming noise and even generating vibration, and affecting the normal use of the equipment. The curvature change rate of the outer edge is the same, so that the air flow can be kept smooth when passing through, and the noise is reduced.
EXAMPLE III
As shown in fig. 1 and fig. 2, the air guiding structure 100 of the present embodiment: including flat wind guiding segments 102 and curved wind guiding segments 104. The flat wind guide section 102 is annular, and the curved wind guide section 104 is connected to one end of the flat wind guide section 102 in the axial direction. In the axial cross section of the flat wind guide segment 102, the curvature of the outer edge of the curved wind guide segment 104 changes gradually in the direction from the flat wind guide segment 102 to the curved wind guide segment 104. The outer edge of the guiding section 104 is the outer edge of the axial section of the guiding section 104. When the air flow enters the air guiding structure 100, the air flow at the edge of the air guiding structure 100 first contacts the curved air guiding section 104, then enters the flat air guiding section 102 along the arc of the curved air guiding section 104, and then flows out of the air guiding structure 100 through the flat air guiding section 102. The camber gradual change of bent wind guide section 104 for the air current is at the in-process through bent wind guide section 104, and the direction change of air current is comparatively gentle, has fine water conservancy diversion effect, is difficult for producing torrent or backward flow, can avoid leading to the air current to produce pressure pulsation to wind guide structure 100 because of the air current is unstable, and then the noise abatement.
Further, when the air flow flows from the outside of the flat air guide section 102 to the curved air guide section 104, the curvature of the outer edge of the curved air guide section 104 gradually changes, so that the air flow smoothly flows through the corresponding position of the curved air guide section 104, and turbulence is not generated due to the sudden change of the curvature of the edge.
Generally, in the wind guiding structure 100, the airflow flows into the flat wind guiding section 102 from the curved wind guiding section 104 and flows out through the flat wind guiding section 102. However, when the amount of the air flowing in is large, a part of the air may flow out of the curved air guiding section 104 and reach the outside of the flat air guiding section 102. If other structures create a blockage to the direction of the airflow at this location, the airflow may create a backflow to the other side of the serpentine wind segment 104. Because the curvatures of the outer edges of all parts of the outer edges of the curved air guiding sections 104 are gradually changed, the backflow air flow cannot form unstable air flow, and noise is avoided.
Further, the curvature change rate of the outer edge of the guiding section 104 is the same, that is, the curvature change of the outer edge does not change suddenly and sharply, and a sharp corner is formed at the outer edge.
Generally speaking, the sudden change of curvature of the outer edge can cause the air flow to form turbulence when passing through, thereby forming noise and even generating vibration, and affecting the normal use of the equipment. The curvature change rate of the outer edge is the same, so that the air flow can be kept smooth when passing through, and the noise is reduced.
The curved wind guide section 104 is connected with one end of the flat wind guide section 102, the curvature of the outer edge of the curved wind guide section is gradually changed along the direction from the flat wind guide section 102 to the curved wind guide section 104, the outer edge of the curved wind guide section gradually turns to be rewound towards the flat wind guide section 102 in the process of extending outwards, and finally the curved wind guide section is connected with the other side of the axial section of the flat wind guide section 102 and is gently connected with the inner side and the outer side of the flat wind guide section 102. Therefore, the outer edge of the curved air guide section 104, in which the curvature changes gradually, allows the air flow to flow smoothly regardless of whether the air flow flows from the curved air guide section 104 to the flat air guide section 102 or from the flat air guide section 102 to the curved air guide section 104, and prevents the air flow from forming an unstable flow when the air flow flows.
Example four
As shown in fig. 1 and fig. 2, the air guiding structure 100 of the present embodiment: including flat wind guiding segments 102 and curved wind guiding segments 104. The flat wind guide section 102 is annular, and the curved wind guide section 104 is connected to one end of the flat wind guide section 102 in the axial direction. In an axial cross section of the flat wind guide section 102, the curvature of the outer edge of the curved wind guide section 104 in the direction from the flat wind guide section 102 to the curved wind guide section 104 gradually changes. The outer edge of the guiding section 104 is the outer edge of the axial section of the guiding section 104. When the air flow enters the air guiding structure 100, the air flow at the edge of the air guiding structure 100 first contacts the curved air guiding section 104, then enters the flat air guiding section 102 along the arc of the curved air guiding section 104, and then flows out of the air guiding structure 100 through the flat air guiding section 102. The camber gradual change of bent wind guide section 104 for the air current is at the in-process through bent wind guide section 104, and the direction change of air current is comparatively gentle, has fine water conservancy diversion effect, is difficult for producing torrent or backward flow, can avoid leading to the air current to produce pressure pulsation to wind guide structure 100 because of the air current is unstable, and then the noise abatement.
Further, when the air flow flows from the outside of the flat air guide section 102 to the curved air guide section 104, the curvature of the outer edge of the curved air guide section 104 gradually changes, so that the air flow smoothly flows through the corresponding position of the curved air guide section 104, and turbulence is not generated due to the sudden change of the curvature of the edge.
Generally, in the wind guiding structure 100, the airflow flows into the flat wind guiding section 102 from the curved wind guiding section 104 and flows out through the flat wind guiding section 102. However, when the amount of the air flowing in is large, a part of the air may flow out of the curved air guiding section 104 and reach the outside of the flat air guiding section 102. If other structures create a blockage to the direction of the airflow at this location, the airflow may create a backflow to the other side of the serpentine wind segment 104. Because the curvatures of the outer edges of all parts of the outer edges of the curved air guiding sections 104 are gradually changed, the backflow air flow cannot form unstable air flow, and noise is avoided.
Further, the curvature change rate of the outer edge of the guiding section 104 is the same, that is, the curvature change of the outer edge does not change suddenly and sharply, and a sharp corner is formed at the outer edge.
Generally speaking, the sudden change of curvature of the outer edge can cause the air flow to form turbulence when passing through, thereby forming noise and even generating vibration, and affecting the normal use of the equipment. The curvature change rate of the outer edge is the same, so that the air flow can be kept smooth when passing through, and the noise is reduced.
Further, the curved wind guiding section 104 is connected to one end of the flat wind guiding section 102, the curvature of the outer edge of the curved wind guiding section changes gradually along the direction from the flat wind guiding section 102 to the curved wind guiding section 104, the outer edge of the curved wind guiding section gradually turns to curl back towards the flat wind guiding section 102 in the process of extending outwards, and finally the curved wind guiding section 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, the air flow can smoothly flow through the outer edge of the curved air guide section 104, which has a gradually changing curvature, regardless of whether the air flow flows from the curved air guide section 104 to the flat air guide section 102 or from the flat air guide section 102 to the curved air guide section 104, and the air flow is prevented from forming an unstable flow when the air flow flows through the outer edge.
Further, the cross-sectional shape of the curved air guiding section 104 is a symmetrical figure in the axial cross-section of the flat air guiding section 102. It can be understood that this structure enables the airflow to flow stably whether the airflow flows through the inside of the air guiding structure 100 or the outside of 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 fig. 2, the air guiding structure 100 of the present embodiment: including flat air guiding segments 102 and curved air guiding segments 104. The flat wind guide section 102 is annular, and the curved wind guide section 104 is connected to one end of the flat wind guide section 102 in the axial direction. In an axial cross section of the flat wind guide section 102, the curvature of the outer edge of the curved wind guide section 104 in the direction from the flat wind guide section 102 to the curved wind guide section 104 gradually changes. The outer edge of the guiding section 104 is the outer edge of the axial section of the guiding section 104. When the air flow enters the air guiding structure 100, the air flow at the edge of the air guiding structure 100 first contacts the curved air guiding section 104, then enters the flat air guiding section 102 along the arc of the curved air guiding section 104, and then flows out of the air guiding structure 100 through the flat air guiding section 102. The camber gradual change of bent wind guide section 104 for the air current is at the in-process through bent wind guide section 104, and the direction change of air current is comparatively gentle, has fine water conservancy diversion effect, is difficult for producing torrent or backward flow, can avoid leading to the air current to produce pressure pulsation to wind guide structure 100 because of the air current is unstable, and then the noise abatement.
Further, when the air flow flows from the outside of the flat air guide section 102 to the curved air guide section 104, the curvature of the outer edge of the curved air guide section 104 gradually changes, so that the air flow smoothly flows through the corresponding position of the curved air guide section 104, and turbulence is not generated due to the sudden change of the curvature of the edge.
Generally, in the wind guiding structure 100, the airflow flows into the flat wind guiding section 102 from the curved wind guiding section 104 and flows out through the flat wind guiding section 102. However, when the amount of the air flowing in is large, a part of the air may flow out of the curved air guiding section 104 and reach the outside of the flat air guiding section 102. If other structures create a blockage to the direction of the airflow at this location, the airflow may create a backflow to the other side of the serpentine wind segment 104. Because the curvatures of the outer edges of all parts of the outer edges of the curved air guiding sections 104 are gradually changed, the backflow air flow cannot form unstable air flow, and noise is avoided.
Further, the curvature change rate of the outer edge of the guiding section 104 is the same, that is, the curvature change of the outer edge does not change suddenly and sharply, and a sharp corner is formed at the outer edge.
Generally speaking, the sudden change of curvature of the outer edge can cause the air flow to form turbulence when passing through, thereby forming noise and even generating vibration, and affecting the normal use of the equipment. The curvature change rate of the outer edge is the same, so that the air flow can be kept smooth when passing through, and the noise is reduced.
Further, the curved wind guiding section 104 is connected to one end of the flat wind guiding section 102, the curvature of the outer edge of the curved wind guiding section changes gradually along the direction from the flat wind guiding section 102 to the curved wind guiding section 104, the outer edge of the curved wind guiding section gradually turns to curl back towards the flat wind guiding section 102 in the process of extending outwards, and finally the curved wind guiding section 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, the air flow can smoothly flow through the outer edge of the curved air guide section 104, which has a gradually changing curvature, regardless of whether the air flow flows from the curved air guide section 104 to the flat air guide section 102 or from the flat air guide section 102 to the curved air guide section 104, and the air flow is prevented from forming an unstable flow when the air flow flows through the outer edge.
Further, the cross-sectional shape of the curved air guiding section 104 is a symmetrical figure in the axial cross-section of the flat air guiding section 102. It can be understood that this structure enables the airflow to flow stably whether the airflow flows through the inside of the air guiding structure 100 or flows through the outside of 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 positions. As shown in fig. 3, the direction from the flat wind guiding section 102 to the curved wind guiding section 104 can be set as an initial direction, and an included angle is formed between 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 and the initial direction. The curvature of the corresponding outer edge position changes correspondingly with the difference of the included angle. The position with the maximum curvature is positioned between 30 degrees and 60 degrees of an included angle with the initial direction, namely the position with the maximum curvature of the outline of the curved air guiding section 104 is positioned between 30 degrees and 60 degrees of the extension direction of the flat air guiding section.
Generally, the airflow will flow from curved wind guiding segment 104 to flat wind guiding segment 102, and thus will first pass through curved wind guiding segment 104. It can be understood that the position with the largest curvature is located at an included angle of 30-60 degrees with the initial direction, which means that the curved air guiding section 104 is in an open structure. With this configuration, a wider range of airflow can be guided from the curved air guide section 104 to the flat air guide section 102. Meanwhile, the curvature of the air flow is gradually changed at the position with the maximum curvature, so that the air flow is not unstable at the position due to the sudden change of the curvature.
Further, the curvature of the outer edge of the curved wind guiding section 104 gradually increases, and the outer edge thereof gradually turns back, and finally contacts and meets the outer edge of the flat wind guiding section 102. The whole wind guiding section 104 is on the section of the axis of the flat wind guiding section 102, and the outer edge of the wind guiding section 104 forms a complete closed curve.
This structure makes it possible to stabilize the bent air guide section 104 against air flow in any direction.
Example six
As shown in fig. 1 and fig. 2, the air guiding structure 100 of the present embodiment: including flat wind guiding segments 102 and curved wind guiding segments 104. The flat wind guide section 102 is annular, and the curved wind guide section 104 is connected to one end of the flat wind guide section 102 in the axial direction. In an axial cross section of the flat wind guide section 102, the curvature of the outer edge of the curved wind guide section 104 in the direction from the flat wind guide section 102 to the curved wind guide section 104 gradually changes. The outer edge of the guiding section 104 is the outer edge of the axial section of the guiding section 104. When the air flow enters the air guiding structure 100, the air flow at the edge of the air guiding structure 100 first contacts the curved air guiding section 104, then enters the flat air guiding section 102 along the arc of the curved air guiding section 104, and then flows out of the air guiding structure 100 through the flat air guiding section 102. The camber gradual change of bent wind guide section 104 for the air current is at the in-process through bent wind guide section 104, and the direction change of air current is comparatively gentle, has fine water conservancy diversion effect, is difficult for producing torrent or backward flow, can avoid leading to the air current to produce pressure pulsation to wind guide structure 100 because of the air current is unstable, and then the noise abatement.
Further, when the air flow flows from the outside of the flat air guide section 102 to the curved air guide section 104, the curvature of the outer edge of the curved air guide section 104 gradually changes, so that the air flow smoothly flows through the corresponding position of the curved air guide section 104, and turbulence is not generated due to the sudden change of the curvature of the edge.
Generally, in the wind guiding structure 100, the airflow flows into the flat wind guiding section 102 from the curved wind guiding section 104 and flows out through the flat wind guiding section 102. However, when the amount of the air flowing in is large, a part of the air may flow out of the curved air guiding section 104 and reach the outside of the flat air guiding section 102. If other structures create a blockage to the direction of the airflow at this location, the airflow may create a backflow to the other side of the serpentine wind segment 104. Because the curvatures of the outer edges of all parts of the outer edge of the curved air guiding section 104 are gradually changed, the backflow air flow cannot form unstable air flow, and noise is avoided.
Further, the curvature change rate of the outer edge of the guiding section 104 is the same, that is, the curvature change of the outer edge does not change suddenly and sharply, and a sharp corner is formed at the outer edge.
Generally speaking, the sudden change of curvature of the outer edge can cause the air flow to form turbulence when passing through, thereby forming noise and even generating vibration, and affecting the normal use of the equipment. The curvature change rate of the outer edge is the same, so that the air flow can be kept smooth when passing through, and the noise is reduced.
Further, the curved wind guiding section 104 is connected to one end of the flat wind guiding section 102, the curvature of the outer edge of the curved wind guiding section changes gradually along the direction from the flat wind guiding section 102 to the curved wind guiding section 104, the outer edge of the curved wind guiding section gradually turns to curl back towards the flat wind guiding section 102 in the process of extending outwards, and finally the curved wind guiding section 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, the outer edge of the curved air guide section 104, in which the curvature changes gradually, allows the air flow to flow smoothly regardless of whether the air flow flows from the curved air guide section 104 to the flat air guide section 102 or from the flat air guide section 102 to the curved air guide section 104, and prevents the air flow from forming an unstable flow when the air flow flows.
Further, the cross-sectional shape of the curved air guiding section 104 is a symmetrical figure in the axial cross-section of the flat air guiding section 102. It can be understood that this structure enables the airflow to flow stably whether the airflow flows through the inside of the air guiding structure 100 or the outside of 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 positions. As shown in fig. 3, the direction from the flat wind guiding section 102 to the curved wind guiding section 104 is an initial direction, and an included angle is formed between a connection line between a connection point of the flat wind guiding section 102 and the curved wind guiding section 104 and an outer edge of the curved wind guiding section 104 and the initial direction. The curvature of the corresponding outer edge position changes correspondingly with the difference of the included angle. The position with the largest curvature is positioned at an included angle of 30-60 degrees with the initial direction.
Typically, the airflow will flow from curved wind guiding segment 104 to flat wind guiding segment 102, and thus will first pass through curved wind guiding segment 104. It can be understood that the position with the largest curvature is located at an included angle of 30-60 degrees with the initial direction, which means that the guiding wind section 104 is in an open structure. With this configuration, a wider range of airflow can be guided from the curved air guide section 104 to the flat air guide section 102. Meanwhile, the curvature of the air flow is gradually changed at the position with the maximum curvature, so that the air flow is not unstable at the position due to the sudden change of the curvature.
Further, the curvature of the outer edge of the curved wind guiding section 104 gradually increases, and the outer edge thereof gradually turns back, and finally contacts and meets the outer edge of the flat wind guiding section 102. The whole wind guiding section 104 is on the section of the axis of the flat wind guiding section 102, and the outer edge of the wind guiding section 104 forms a complete closed curve.
This structure makes it possible to stabilize the bent air guide section 104 against air flow in any direction.
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 guide section 102. The first curved section 106 and the second curved section 108 have different cross-sectional shapes, so that the guiding section 104 can be better matched with other structures in the device, and guides the airflow of different curved sections.
Here, the cross-sectional shape may be different, the geometric shape may be different, or the shape area may be different. It can be understood that, for the circumferentially adjacent positions of the wind guide ring, if other structures in the device are closer to the curved wind guide section 104 of the wind guide ring, the positions of the corresponding curved sections can be changed, so that the curved wind guide section 104 can be compactly installed with other structures in the device.
Further, the first curved section 106 and the second curved section 108 are arranged adjacently, so that the whole wind guiding section 104 is of a structure with gentle edges, and the wind guiding effect of the wind guiding structure 100 is not affected by discontinuity of the wind guiding section 104 due to the fact that no connection exists between the first curved section 106 and the second curved section 108.
EXAMPLE seven
As shown in fig. 1 and fig. 2, the air guiding structure 100 of the present embodiment: including flat wind guiding segments 102 and curved wind guiding segments 104. The flat wind guide section 102 is annular, and the curved wind guide section 104 is connected to one end of the flat wind guide section 102 in the axial direction. In an axial cross section of the flat wind guide section 102, the curvature of the outer edge of the curved wind guide section 104 in the direction from the flat wind guide section 102 to the curved wind guide section 104 gradually changes. The outer edge of the guiding section 104 is the outer edge of the axial section of the guiding section 104. When the air flow enters the air guiding structure 100, the air flow at the edge of the air guiding structure 100 first contacts the curved air guiding section 104, then enters the flat air guiding section 102 along the arc of the curved air guiding section 104, and then flows out of the air guiding structure 100 through the flat air guiding section 102. The camber gradual change of bent wind guide section 104 for the air current is at the in-process through bent wind guide section 104, and the direction change of air current is comparatively gentle, has fine water conservancy diversion effect, is difficult for producing torrent or backward flow, can avoid leading to the air current to produce pressure pulsation to wind guide structure 100 because of the air current is unstable, and then the noise abatement.
Further, when the air flow flows from the outside of the flat air guide section 102 to the curved air guide section 104, the curvature of the outer edge of the curved air guide section 104 gradually changes, so that the air flow smoothly flows through the corresponding position of the curved air guide section 104, and turbulence is not generated due to the sudden change of the curvature of the edge.
Generally, in the wind guiding structure 100, the airflow flows into the flat wind guiding section 102 from the curved wind guiding section 104 and flows out through the flat wind guiding section 102. However, when the amount of the air flowing in is large, a part of the air may flow out of the curved air guiding section 104 and reach the outside of the flat air guiding section 102. If other structures create a blockage to the direction of the airflow at this location, the airflow may create a backflow to the other side of the serpentine wind segment 104. Because the curvatures of the outer edges of all parts of the outer edges of the curved air guiding sections 104 are gradually changed, the backflow air flow cannot form unstable air flow, and noise is avoided.
Further, the curvature change rate of the outer edge of the guiding section 104 is the same, that is, the curvature change of the outer edge does not change suddenly and sharply, and a sharp corner is formed at the outer edge.
Generally speaking, the sudden change of curvature of the outer edge can cause the air flow to form turbulence when passing through, thereby forming noise and even generating vibration, and affecting the normal use of the equipment. The curvature change rate of the outer edge is the same, so that the air flow can be kept smooth when passing through, and the noise is reduced.
Further, the curved wind guiding section 104 is connected to one end of the flat wind guiding section 102, the curvature of the outer edge of the curved wind guiding section changes gradually along the direction from the flat wind guiding section 102 to the curved wind guiding section 104, the outer edge of the curved wind guiding section gradually turns to curl back towards the flat wind guiding section 102 in the process of extending outwards, and finally the curved wind guiding section 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, the outer edge of the curved air guide section 104, in which the curvature changes gradually, allows the air flow to flow smoothly regardless of whether the air flow flows from the curved air guide section 104 to the flat air guide section 102 or from the flat air guide section 102 to the curved air guide section 104, and prevents the air flow from forming an unstable flow when the air flow flows.
Further, the cross-sectional shape of the curved air guiding section 104 is a symmetrical figure in the axial cross-section of the flat air guiding section 102. It can be understood that this structure enables the airflow to flow stably whether the airflow flows through the inside of the air guiding structure 100 or the outside of 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 positions. As shown in fig. 3, the direction from the flat wind guiding section 102 to the curved wind guiding section 104 is an initial direction, and an included angle is formed between a connection line between a connection point of the flat wind guiding section 102 and the curved wind guiding section 104 and an outer edge of the curved wind guiding section 104 and the initial direction. The curvature of the corresponding outer edge position changes correspondingly with the difference of the included angle. The position with the largest curvature is positioned at an included angle of 30-60 degrees with the initial direction.
Typically, the airflow will flow from curved wind guiding segment 104 to flat wind guiding segment 102, and thus will first pass through curved wind guiding segment 104. It can be understood that the position with the largest curvature is located at an included angle of 30-60 degrees with the initial direction, which means that the curved air guiding section 104 is in an open structure. With this configuration, a wider range of airflow can be guided from the curved air guide section 104 to the flat air guide section 102. Meanwhile, the curvature of the air flow is gradually changed at the position with the maximum curvature, so that the air flow is not unstable at the position due to the sudden change of the curvature.
Further, the curvature of the outer edge of the curved air guiding section 104 gradually increases, and the outer edge thereof gradually turns back, and finally contacts and contacts the outer edge of the flat air guiding section 102. The whole wind guiding section 104 is on the section of the axis of the flat wind guiding section 102, and the outer edge of the wind guiding section 104 forms a complete closed curve.
This structure makes it possible to stabilize the bent air guide section 104 against air flow in any direction.
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 guide section 102. The first curved section 106 and the second curved section 108 have different cross-sectional shapes, so that the guiding section 104 can be better matched with other structures in equipment, and guides airflow of different curved sections.
Here, the cross-sectional shape may be different, the geometric shape may be different, or the shape area may be different. It can be understood that, for the circumferentially adjacent positions of the wind guide ring, if other structures in the device are closer to the curved wind guide section 104 of the wind guide ring, the positions of the corresponding curved sections can be changed, so that the curved wind guide section 104 can be compactly installed with other structures in the device.
Further, first curved section 106 and the adjacent setting of second curved section 108 for whole bent wind guide section 104 all is the structure that the edge is mild, can not appear not connecting because of appearing between first curved section 106 and the second curved section 108, makes bent wind guide section 104 appear discontinuously, and then influences the effect of wind guide structure 100 wind guide.
Further, the cross-sectional dimensions of the meandering wind guide segments 104 in the circumferential direction of the flat wind guide segments 102 are the same, that is, the cross-sectional dimensions of the meandering wind guide segments 104 are the same at each position. With the structure, the bent wind guide segments 104 have the same or similar wind guide capacity at different positions in the circumferential direction of the wind guide structure 100.
Furthermore, the flat wind guide section 102 and the curved wind guide section 104 are integrally formed, and compared with other connection methods, the structure has higher mechanical strength. The connection is smoother and does not affect the flow of the airflow. When the air current strikes the air guide structure 100, because the two are integrated into one piece, the shock resistance is stronger, can not form the noise. 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 wind guiding structure 100 is more convenient to install and maintain.
Further, as shown in fig. 5, one or more cutting portions 110 are provided on the guiding section 104, and the radial dimension of the cutting portion 110 is smaller than that of the other portions. It can be understood that the cutting part 110 is arranged, so that the bent wind guide section 104 does not occupy too much space at the outer edge of the cutting part 110, thereby being convenient for being compactly installed with other structures in the equipment, and reducing the volume of the equipment.
Example eight
As shown in fig. 6, the fan structure 200 of the present embodiment includes at least one fan blade 202, and the air guiding structure 100 of any of the above embodiments is sleeved outside the fan blade 202. When fan blades 202 rotate, air guiding structure 100 can guide air to fan structure 200.
The fan structure 200 employs a counter-rotating 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. This fan configuration 200, which can use the same power, can generate a larger wind than a general fan. Further, the fan structure 200 can be smaller for the same amount of air.
The fan structure 200 further includes a wind deflector 204, and an edge of the air inlet 2042 on the wind deflector 204 is connected to the flat wind guiding section 102. The air deflectors 204 may be used to secure the air deflection structure 100. Furthermore, the air outlets 2042 of the air deflector 204 are connected to the edge of the flat air guiding section 102, so that the air flow flowing out of the flat air guiding section 102 by the air guiding structure 100 is finally discharged from the air outlets 2042.
In addition, the fan structure 200 includes any of the wind guide structures 100 of any of the above embodiments, so that any of the beneficial effects of any of the above embodiments are achieved, and are not described herein again.
Example nine
As shown in fig. 7, the air conditioner 300 according to the present embodiment includes a housing 302, and the blower structure 200 according to any of the above embodiments is disposed in the housing 302. The fan structure 200 includes any one of the wind guide structures 100 according to any one of the embodiments, so that any one of the beneficial effects of any one of the embodiments is achieved, and details are not repeated herein.
Example ten
As shown in fig. 1, the wind guiding ring (i.e., the wind guiding structure 100) provided in this embodiment can be applied to a counter-rotating air conditioner outdoor unit in which the distance between the wind guiding ring and the heat exchanger is greater than 30mm, and has the effects of reducing noise and power.
The wind-guiding circle includes straight section (being flat wind-guiding section 102) and curve section (being bent wind-guiding section 104), and compared with prior art scheme, the main change point lies in the design of curve section:
the curve section of the traditional wind guide ring is mostly constant curvature or approximate curvature, and the shape is mostly a quarter circular arc. In the present embodiment, the curve segment is designed as a continuously changing 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 ° to 60 °. The curvature continuously changes from the maximum curvature angle position to both sides and decreases. The shape of the curve segment approximately satisfies the equation (x) shown in FIG. 82+y2)2＝a2(x2-y2). The range of the curve section of the wind guide ring is enlarged, and the wind guide ring extends backwards until the wind guide ring is intersected with the horizontal section. The value of a can be flexibly selected according to specific use environment and air volume requirements, and is a constant.
In a better scheme, as shown in fig. 9, the initial angle of the curve segment angle 112 is defined as 0 °, wherein 45 °, 135 °, 225 ° and 315 ° adopt the shape of a larger curve segment, and 0 °, 90 °, 180 ° and 270 ° adopt the shape of a smaller curve segment, and the middle is uniformly transited, and finally, the cutting is carried out according to the installation requirement.
The larger curve section and the smaller curve section have the same shape but different sizes, namely the cross sections of the larger curve section and the smaller curve section are formed by scaling in equal proportion.
In a counter-rotating outdoor unit experiment for realizing the capacity of three units by using two unit box bodies, the power consumption of the fan is reduced by more than 5% and the noise is reduced by more than 1.5dB by replacing the traditional wind guide ring with the wind guide ring in the embodiment.
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 of the air flow is changed smoothly in the process that the air flow passes through the curved air guide section, a good flow guide effect is achieved, turbulence or backflow is not easy to generate, pressure pulsation of the air flow on the air guide structure caused by unstable air flow can be avoided, and noise is 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 noise is eliminated.
In the present invention, the terms "first", "second", and "third" 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 limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means 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 invention. In this specification, the schematic representations of the terms used above 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 invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (15)
1. An air guide structure, comprising:
a flat wind guide section in an annular shape;
the bent air guide section is connected with one end of the flat air guide section along the axial direction,
on a cross section perpendicular to an axis of the flat air guiding section, the curvature of the outer edge of the curved air guiding section gradually changes along the direction from the flat air guiding section to the curved air guiding section.
2. The air guide structure according to claim 1, wherein the rates of change of the curvatures of the outer edges of at least some of the air guide segments are the same.
3. The air guide structure according to claim 1, wherein the curved air guide section extends outward away from one end of the flat air guide section until intersecting with the flat air guide section.
4. The air guide structure according to claim 1, wherein a cross-sectional shape of the curved air guide section is a symmetrical pattern in a cross-section passing through an axis of the flat air guide section.
5. The air guide structure according to claim 1, wherein a position where a curvature of the profile of the curved air guide section is the largest is located between 30 ° and 60 ° in an extending direction of the flat air guide section.
6. The air guide structure according to claim 1, wherein a curvature of an outer edge of the curved air guide section is gradually increased.
7. The air guide structure according to claim 1, wherein the curved air guide section specifically includes:
at least one first curved section and at least one second curved section which are arranged along the circumferential direction of the flat wind guide section,
wherein, on a cross section perpendicular to the axis of the flat wind guide section, the cross sectional shape of the first curved section is different from the cross sectional shape of the second curved section.
8. The air guide structure according to claim 7, wherein the first curved segment and the second curved segment are adjacently disposed.
9. The air guide structure according to claim 1, wherein cross-sectional dimensions of the curved air guide section in a cross section passing through an axis of the flat air guide section are the same in a circumferential direction of the flat air guide section.
10. The air guide structure according to claim 1, wherein the flat air guide section is integrally formed with the curved air guide section.
11. The air guide structure according to claim 1, further comprising:
the bent air guiding section is provided with at least one cutting part, and the bent air guiding section is located, the radial size of the cutting part is smaller than that of other parts.
12. A fan structure, comprising:
at least one fan blade;
the wind guide structure according to any one of claims 1 to 11, wherein the fan blades are sleeved with the wind guide structure.
13. The fan structure according to claim 12, wherein the number of the fan blades is two, two of the fan blades are disposed along an axial direction of the fan blades, and rotation directions of the two fan blades are opposite.
14. The fan structure of claim 12, further comprising:
the air guide plate is provided with an air passing port, and the flat air guide section of the air guide structure is connected with the edge of the air passing port.
15. An air conditioner, comprising:
a housing;
a fan structure according to any of claims 12 to 14, provided within the housing.
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| CN202011630064.1A CN114688717B (en) | 2020-12-30 | 2020-12-30 | Air guide structure, fan structure and air conditioner |
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| CN114688717B (en) | 2023-09-05 |
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