CN110749079A - Air deflector assembly and air conditioner - Google Patents
Air deflector assembly and air conditioner Download PDFInfo
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- CN110749079A CN110749079A CN201911219063.5A CN201911219063A CN110749079A CN 110749079 A CN110749079 A CN 110749079A CN 201911219063 A CN201911219063 A CN 201911219063A CN 110749079 A CN110749079 A CN 110749079A
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- air
- wing
- deflection
- air deflection
- assembly
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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
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Flow Control Members (AREA)
Abstract
The invention discloses an air deflector assembly and an air conditioner, wherein the air deflector assembly comprises an air deflector and a wing plate, and the air deflector is provided with an air guide surface; the wing board pass through the connecting piece install in the wind-guiding surface, the wing board has leading edge, trailing edge, ventral surface, back and both sides face, the ventral surface with the back all is connected the leading edge with the trailing edge, the side is connected the back with the ventral surface, two interval between the side is in the leading edge orientation reduces gradually in the direction of trailing edge, the ventral surface or the back with be formed with the air gap between the wind-guiding surface. The technical scheme of the invention can realize rapid heat transfer of the air conditioner, soften the airflow and realize the effect of no wind feeling or slight wind feeling.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air deflector assembly and an air conditioner.
Background
In the air conditioner, the air deflector arranged at the air outlet mainly adopts an air deflector which forms a certain angle with the air supply flow, and the air supply direction is controlled by blocking and guiding.
However, when the air deflector is used for blowing air, the air flow velocity is high, cold air is easily blown directly, and discomfort and even cold of a user are caused.
The current no wind-sensing air conditioner mainly through set up the micropore on the aviation baffle, through stepping down the acceleration rate to the air current, makes the blowout of stranded air current from the micropore, forms the high-speed disturbance source in many places in the air outlet region, reaches the quick mixing of air outlet air current and environment air current, reaches and reduces air conditioner air-out distance, keeps sufficient refrigeration ability simultaneously.
Because the wind resistance of the existing microporous air deflector is large, when the wind quantity is large, the air deflector is limited by the air deflector, the airflow is difficult to flow out of the air deflector rapidly, the wind power waste is caused, and the requirement of no wind sense is difficult to achieve rapidly.
Disclosure of Invention
The invention mainly aims to provide an air deflector component, and aims to solve the technical problems of large wind resistance, no wind feeling effect and poor performance of the existing microporous air deflector.
To solve the above problem, the present invention provides an air deflector assembly, comprising:
the air guide plate is provided with an air guide surface;
the wing board, the wing board pass through the connecting piece install in the wind-guiding surface, the wing board has leading edge, trailing edge, ventral surface, back and both sides face, the ventral surface with the back is all connected the leading edge with the trailing edge, the side is connected the back with the ventral surface, two interval between the side is in the leading edge orientation reduce gradually in the direction of trailing edge, the ventral surface or the back with be formed with the air gap between the wind-guiding surface.
In one embodiment, the ventral surface is located between the back surface and the air guiding surface, and the ventral surface is connected with the air guiding surface through a connecting piece.
In one embodiment, the trailing edge is closer to the wind guide surface than the leading edge.
In one embodiment, the arc length of the back surface corresponding to the airfoil section of the wing plate is H1The arc length or the straight line length of the ventral surface corresponding to the airfoil section of the wing plate is H2，H1Greater than H2。
In one embodiment, the number of the wing plates is multiple, and the wing plates are arranged at intervals along the length direction of the air deflector.
In an embodiment, the air guide plate assembly further includes at least one guide bracket, two ends of the guide bracket are connected to the guide surface, a guide channel is formed by the inner surface of the guide bracket and the guide surface, the guide channel guides the air along the width direction of the air guide plate, and the wing plates are arranged in the guide direction of the guide channel.
In one embodiment, the middle part of the diversion bracket is connected with the diversion surface through an instruction.
In an embodiment, the number of the guide supports is two, the two guide supports are arranged at intervals in the length direction of the air deflector, the plurality of wing plates include a first wing group and a second wing group, and the first wing group and the second wing group are arranged in the two guide channels.
In one embodiment, the distance between the leading edge and the maximum thickness of the wing plate is C1The distance between the trailing edge and the maximum thickness position of the wing plate is C2，C1Less than C2。
In one embodiment, the angle of attack of the wing panel relative to the wind deflector is not less than 30 ° and not more than 70 °.
In one embodiment, the angle of attack of the wing panel relative to the wind deflector is no less than 25 ° and no greater than 55 °.
In one embodiment, the chord length of the wing plate is C, the maximum span of the wing plate is L, and the value of C/L is not less than 1.5 and not more than 4.
In one embodiment, the flow guide surface is arranged in a concave arc surface.
The invention also discloses an air conditioner, which is provided with an air outlet, wherein at least one air deflector component is arranged at the air outlet, the air deflector component comprises an air deflector and a wing plate, and the air deflector is provided with an air guide surface; the wing board pass through the connecting piece install in the wind-guiding surface, the wing board has leading edge, trailing edge, ventral surface, back and both sides face, the ventral surface with the back all is connected the leading edge with the trailing edge, the side is connected the back with the ventral surface, two interval between the side is in the leading edge orientation reduces gradually in the direction of trailing edge, the ventral surface or the back with be formed with the air gap between the wind-guiding surface.
In one embodiment, the air conditioner is a wall-mounted air conditioner indoor unit.
According to the technical scheme, the wing plate is arranged on the air deflector, when airflow flows to the rear edge of the wing plate along the front edge of the wing plate, a vortex is formed at the rear edge of the wing plate, the radius of the formed vortex is gradually enlarged in the subsequent operation process, and the vortex speed is gradually reduced, so that rapid heat transfer can be realized, the airflow is softened lightly, and the effect of no wind sensation or slight wind sensation is realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic view of an embodiment of an air deflection assembly according to the present invention;
fig. 2 is a schematic structural view of the air deflection assembly shown in fig. 1 from another perspective;
fig. 3 is a further view (from the air supply direction) of the air deflection assembly of fig. 1;
FIG. 4 is a rear view of the air deflection assembly of FIG. 3;
FIG. 5 is a top plan view of the air deflection assembly of FIG. 1;
FIG. 6 is a cross-sectional view of the wing plate of FIG. 5 taken along line A-A;
FIG. 7 is a view of the three orientations of the wing plate, guide bracket and guide plate of FIG. 6, together with an angle of attack α and a plane S1Plane S2A schematic diagram of (a);
FIG. 8 is a schematic representation of the airfoil configuration of FIG. 7 (comparing the arc lengths of the ventral and dorsal surfaces);
FIG. 9 is a comparison of the leading and trailing edges of the wing panel of FIG. 8 to the point of maximum thickness of the wing panel;
fig. 10a is a schematic view of the airflow field with the airflow flowing backwards from the leading edge of the wing plate, wherein α is 15 °;
fig. 10b is a schematic view of the airflow field with the airflow flowing backwards from the leading edge of the wing plate, wherein α is 25 °;
fig. 10c is a schematic view of the airflow field with the airflow flowing aft from the leading edge of the wing plate, where α is 35 °;
fig. 10d is a schematic view of the airflow field with the airflow flowing aft from the leading edge of the wing plate, where α is 45 °;
fig. 10e is a schematic view of the airflow field with the airflow flowing aft from the leading edge of the wing plate, where α is 55 °;
fig. 10f is a schematic view of the airflow field with the airflow flowing aft from the leading edge of the wing plate, where α is 60 °;
fig. 10g is a schematic view of the airflow field with the airflow flowing backwards from the leading edge of the wing plate, wherein α is 65 °;
fig. 10h is the profile of the flow vorticity contour for the flow aft from the leading edge of the wing plate, where α is 70 °.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | |
11 | |
| 12 | |
13 | Connecting |
| 14 | |
11a | |
| 11b | Leeward |
||
| 111 | |
112 | |
| 121 | |
122 | |
| 12a | |
12b | Back side of the |
| 14a | |
14b | |
| 140 | |
141 | |
| 142 | |
143 | Via hole |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides an air deflector assembly and an air conditioner comprising the same. Regarding the air conditioner, the following description will be made with respect to a wall-mounted air conditioner indoor unit as a specific embodiment.
Referring to fig. 1 to 7, an air deflection assembly 10 includes an air deflection plate 11 and a wing plate 12, where the air deflection plate 11 has an air deflection surface 11 a; the wing plate 12 is attached to the air guide surface 11a by a connector 13, the wing plate 12 has a front edge 121, a rear edge 122, a ventral surface 12a, a rear surface 12b, and two side surfaces, the ventral surface 12a and the rear surface 12b both connect the front edge 121 and the rear edge 122, the side surfaces connect the rear surface 12b and the ventral surface 12a, the distance between the two side surfaces gradually decreases in the direction from the front edge 121 toward the rear edge 122, and an air gap P is formed between the ventral surface 12a or the rear surface 12b and the air guide surface 11 a.
The air guide plate 11 has a substantially square plate-like structure, and the air guide plate 11 itself has a first edge 111 and a second edge 112 extending in the longitudinal direction thereof and disposed to face each other, and the air guide plate 11 also has a leeward surface 11b facing the air guide surface 11a (the leeward surface 11b also has an air guide function when it is at a certain angle). Of course, the wind guide plate 11 may have a certain curvature, for example, the wind guide surface 11a may have a certain concave curvature, and the leeward surface 11b may have a certain curvature.
Referring to fig. 6-8, wing panel 12, as its name implies, is constructed and operates in a manner similar to an aircraft wing.
The leading edge 121 of the wing panel 12 refers to the front edge of the wing panel 12 facing the wind, and the trailing edge 122 refers to the trailing edge of the wing panel 12 facing the wind, that is, when the wing panel 12 faces the wind, the airflow flows from the leading edge 121 to the trailing edge 122. When the airflow passes through the wing plate 12, part of the airflow flows along the ventral surface 12a and part of the airflow flows along the back surface 12b, and the flow path (corresponding to H) of the airflow on the ventral surface 12a1) Is smaller than the flow path of the air flow (corresponding to H) at the back surface 12b2) And the two air streams start at the leading edge 121 and reach the trailing edge 122 simultaneously, the velocity of the air stream at the rear surface 12b is greater than the velocity of the air stream flowing over the ventral surface 12a, so that the pressure of the air stream on the rear surface 12b is greater than the pressure of the air stream on the ventral surface.
In addition, referring to fig. 6 to 8, the wing head (the front edge 121 is located at the wing head) of the wing plate 12 is rounded, and the wing tail (the rear edge is located at the wing tail) of the wing plate 12 is approximately arranged in a wedge shape.
Referring to fig. 2 and 3, for the wing panel 12, the wing panel 12 itself further has two side surfaces (not shown) between the ventral surface 12a and the dorsal surface 12b, the distance between the two side surfaces gradually decreases in the direction from the leading edge 121 to the trailing edge 122, and the maximum span L refers to the length of the leading edge. The chord length C is indicative of the perpendicular distance between the leading edge 121 and the trailing edge 122. Distance C of the leading edge 121 from the maximum thickness of the wing panel 121Less than the distance C of the trailing edge 122 from the maximum thickness of the wing panel 122. The back surface 12b is a curved surface, and the ventral surface 12a may be a flat surface or a curved surface.
Referring to fig. 1 to 3, the wing plate 12 and the air guiding plate 11 are connected by a connecting member 13, on one hand, the connecting member 13 may be a columnar structure, or a regular or irregular protrusion disposed on the air guiding surface 11a, or a regular or irregular protrusion disposed on the surface of the wing plate 12. On the other hand, the connector 13 may have one end connected to the air guide surface 11a and the other end connected to the side surface, the back surface 12b, or the ventral surface 12a of the wing plate 12. On the other hand, the connecting member 13 may also be a sheet-like structure, for example, the sheet-like structure extends along the airflow direction, so that on the one hand, the sheet-like structure can play a role in guiding the airflow, on the other hand, the sheet-like structure can also reduce the airflow resistance, and on the other hand, the sheet-like structure also has a certain dividing role in the airflow passing through the air guiding surface 11a, so as to slow down the formation of.
Referring to fig. 10, when the airflow blows along the width direction of the wind deflector 11, a part of the airflow winds from the ventral surface 12a to the dorsal surface 12b, and at the same time, the airflow flows from the front edge 121 to the rear edge 122, so that a spiral vortex wake is formed by the part of the airflow relative to the wing plate. Namely, the air flow is originally straight when flowing through the air deflector 11, and can form a plurality of vortex-shaped wake flows after being guided by the multi-machine wing plate 12, so that the mass and heat transfer effects are enhanced, and the heat convection capability is improved; the stroke of the airflow is reduced on the premise of not reducing the heat exchange quantity; the effect of gentle wind feeling can be realized in a slightly far range by strong convection and strong heat exchange in a range close to the air outlet.
The above description has described that the wing plate 12 is attached to the air guide plate 11 mainly in two ways, the first is that the ventral surface 12a faces the air guide surface 11a, and the second is that the back surface 12b faces the air guide surface 11 a. In order to prevent the formed vortex from blowing on the wind guide plate 11 and thereby reduce the vortex effect, the ventral surface 12a of the wing plate 12 is located between the back surface 12b and the wind guide surface 11a, and the ventral surface 12a is connected to the wind guide surface 11a by a connector 13 in this embodiment, because a part of the air flow is guided from the ventral surface 12a to the back surface 12 b.
Further, in the present embodiment, the trailing edge 122 is located closer to the air guide surface 11a than the leading edge 121 so that the vortex air flow guided by the wing plate 12 itself does not interfere with the air guide plate 11. Thus, the blown vortex has a certain angle with respect to the air guide surface 11a, and as the vortex flows forward, the vortex tends to flow away from the baffle.
Referring to fig. 1 to 5, the air guide plate assembly 10 further includes at least one guide bracket 14, two ends of the guide bracket 14 are connected to the guide surface 11a, a guide channel 140 is formed between an inner surface of the guide bracket 14 and the guide surface 11a, the guide channel 140 guides the air along a width direction of the air guide plate 11, and the wing plates 12 are disposed in a guide direction of the guide channel 140.
For the guide bracket 14, on the one hand, the air flow has a collecting effect, so that the air flow can flow to the wing plate 12 more smoothly; on the other hand, the air conditioner has a guiding function on air flow, and reduces the formation of internal vortex of the air outlet of the air conditioner.
In the case of an air conditioner, the wind speed at the air outlet is approximately 0.5m/s to 4m/s, and in the case of 4m/s, after the wind is guided by a common plate-shaped air guide plate, the wind speed can be reduced to approximately 0 after a distance of about 5 m. After the air guide plate assembly, the wind speed can be reduced to 0 approximately after the distance of about 2m, the blown air flow and indoor air can fully exchange heat in the range of blowing out 2m from the air outlet to the air flow, and the wind speed is extremely low after 2m is opened.
Considering that the formation of the vortex is determined by a plurality of factors, such as the flow rate of the air flowing through the wing panel 12, the structure of the wing panel 12 itself, the angle of attack α of the wing panel 12, etc., when the wing panel 12 is guiding, in one embodiment, in order to further improve the effect of the vortex formation of the wing panel 12, the guiding channel 140 has an inlet 141 and an outlet 142, and the guiding channel 140 is disposed in a converging manner in the direction of the inlet 141 toward the outlet 142. thus, when the air is blown out through the guiding channel 140, the guiding channel 140 has a boosting effect on the air flow, thereby increasing the wind speed, and the vortex formed by the wing panel 12 is enhanced (vortex effect and vortex amount).
In one embodiment, the middle of the deflector bracket 14 is connected to the deflector surface 11a by a leg 15. So, can play the reinforcing action to the water conservancy diversion support on the one hand, on the other hand can also be with the air current segmentation of flowing through in the water conservancy diversion passageway 140 for a plurality of regions to further reduced the formation of vortex, reduced the windage.
Further, in another preferred embodiment, the number of the guide brackets 14 is two, two guide brackets 14 are arranged at intervals in the length direction of the air deflector 11, and the plurality of wing plates 12 include a first wing group and a second wing group, and the first wing group and the second wing group are arranged in two guide channels 140.
For a wall-mounted air conditioner indoor unit, a cross-flow wind wheel is generally adopted as a wind wheel, when the cross-flow wind wheel is used for supplying wind, the wind speed and the wind volume of the wind supplied from the middle part are large, the wind volume and the wind speed at two ends are extremely small, and after the airflow blows through a flow guide channel, the whistle is found to be generated.
In this embodiment, referring to fig. 3, the guide bracket 14 includes a guide plate 14a opposite to the air guide plate 11, and connection plates 14b located at two ends of the guide plate 14a in the length direction, and a through hole 143 is formed through the connection plate 14b located at one end of the air guide plate 11 in the length direction, so that the guide channel 140 is communicated with the inside of the air duct, thereby greatly reducing noise.
Angle of inclination of wing plateIt should not be too large or too small. The inclination of the wing plate 12 will be discussed further in this embodiment. Referring to fig. 7, a plane where the first edge 111 and the second edge 112 are located is defined as S1The plane of the leading edge 121 and the trailing edge 122 is S2，S1And S2The included angle α is not less than 15 degrees and not more than 70 degrees, here, the wind guide surface 11a can be a plane or a cambered surface, when the wind guide surface 11a is a plane, the plane S is1Namely the air guide surface 11a, when the air guide surface 11a is a cambered surface, the plane S1Not overlapping with the air guide surface 11 a. Referring to fig. 10a to 10h, the wing plate 12 is obliquely installed on the wind guide surface 11a with respect to the plane S1In (1).
Through simulation experiment tests, when α is 15 degrees, the vortex strength is weak, when α is 70 degrees, the vortex condition is obviously changed, the wing tip vortex degree is weak, when α is 15 degrees to 70 degrees, the wing tip vortex condition is relatively ideal, and the value range of the adaptive attack angle α can be judged to be 15 degrees to 70 degrees according to numerical simulation
The vortex intensity is stronger in the range of α - α -55 °, and the difference is that the influence range of vortex wake is smaller when α -15 ° and α -25 ° are both unfavorable for driving the rear air to rotate, the vortex condition is obviously changed when α -70 °, the wing tip vortex degree is weak, and the wing tip vortex condition is ideal when α -25- α -55 °.
The effect of α on vortex wake was not adequately judged by streamline distribution alone.
The vortex core length of the vortex wake flow is the largest when the incidence angle α is 15 ° and α is 25 °, but the incidence angle α 0 is small, the wake flow influence range is relatively small, so the angle is suitable for the use situation of long-distance air supply and heat exchange efficiency enhancement, α 1 ° to α 2 ° is 55 °, the vortex distribution situation is close, the larger the incidence angle α is, the stronger the ability of breaking up the incoming flow is, therefore, when α ° is 55 °, the effect of converting the air into the vortex wake flow is the best, when α ° to α ° to 55 ° is suitable for short-distance air supply and the design requirement of soft wind feeling is satisfied, when the incidence angle α is too large, the vertical wing plate 12 blocks the air duct, influences the air volume of the incoming flow, when α ° is 60 °, the vortex distribution range is reduced, when α ° is 70 °, and therefore, the vortex distribution is considered to be small when α >70 °.
In the above embodiment, please refer to fig. 1 to 5, the number of the wing plates 12 may be one, and certainly, in order to achieve a better flow guiding effect, the number of the wing plates 12 is multiple, and the multiple wing plates 12 are arranged at intervals along the length direction of the air deflector 11. For example, the number of wing plates 12 may be 5 to 12.
In wind guiding, the airflow is blown out along the width direction of the wind guide plate 11, and when the airflow flows from the leading edge 121 to the trailing edge 122 along the back surface 12b and the ventral surface 12a, the airflow mainly at the trailing edge 122 and near the two side surfaces of the wing plate 12 forms a vortex, so that the distance between two adjacent vortices is relatively larger if the span L of the wing plate 12 is longer. In the present embodiment, the chord length of the wing plate 12 is C, the maximum span (length of the leading edge) of the wing plate 12 is L, and C/L > 1.
Even if C/L > 1 is satisfied, the value of C/L cannot be made small, and through simulation experiment tests, when C/L is 1.5, but C/L is 1.5, the vortex flow is probably very close at the trailing edge 10C. In addition, the C/L cannot be too large, for example, when the C/L is 4, the two vortices at the trailing edge of the wing plate 12 (which do not yet flow out of the wing plate) almost contact together, so that the C/L continues to rise, and the two vortices will interfere with each other, thereby affecting the mass transfer and the subsequent heat exchange. In this embodiment, 1.5. ltoreq. C/L. ltoreq.4.
When the airflow blows over two adjacent wing plates 12, the tips of the tails (one end of the trailing edge 122) of the two adjacent wing plates 12 both form vortices, and when the vortices flow in a direction away from the wing plates 12, the radius of the vortices becomes larger and larger, and if the distances between the two wings are too close, the vortices generated by the tips (two tips of the trailing edge 122 of the wing plate 12) of the two adjacent wing plates are easy to interfere with each other. If the distance is too far away, more airflow does not flow through the wing tip, and the overall vortex effect is reduced. The best effect is that the vortices generated by two adjacent wingtips are close and do not intersect at a far point.
Therefore, the distance between two adjacent wing plates 12 is not small. In addition, if the distance between the two wing plates 12 is too large, the blown vortex air flow is relatively loose, which is not beneficial to mass transfer and heat exchange.
In the above embodiment, both the columnar connector 13 and the sheet-like connector 13 are described, and in the present embodiment, the connector 13 will be further described.
For the columnar connecting pieces 13 (an embodiment of the columnar connecting pieces 13 is not shown in the figure), after the airflow passes through the plurality of columnar connecting pieces 13, each columnar connecting piece forms a pair of vortex streets and then continuously propagates forwards, and the blown airflow has a karman vortex street effect, so that the airflow can be quickly mixed with indoor air, and the heat exchange mixed flow effect is further improved. Therefore, the columnar connector 13 is arranged at a position close to the leading edge 121, and the span between the vortex street and the vortex can be enlarged in space position to avoid mutual interference of the vortex street and the vortex. In addition, the area between two adjacent scrolls is less affected by the air flow (direct blowing of air) before the radii of the two adjacent scrolls are enlarged and meet, so that if the position where the cylindrical connecting member 13 connects the back surface 12b is located at the perpendicular bisector of the wingspan, the blank area between the two adjacent scrolls can be just compensated.
Referring to fig. 3 and 4, for the sheet-shaped connecting member 13, since the structure has a certain dividing effect on the airflow, so that the formation of the vortex can be greatly reduced (the vortex is formed in advance, which is not beneficial to the formation of the vortex at the rear edge 122 of the wing plate 12, and the vortex can disturb the vortex), the sheet-shaped connecting member 13 is disposed at a position close to the front edge 121, which can rectify the airflow, and the vortex phenomenon of the subsequent airflow is greatly reduced when the airflow flows through the wing plate 12. If the position of the sheet-like connection 13 is on the midperpendicular of the span, the radius and flow velocity of the vortex formed by the two tail tips of the trailing edge 122 of the wing plate 12 can be kept consistent, and the overall mass and heat transfer is more uniform.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (15)
1. An air deflection assembly, comprising:
the air guide plate is provided with an air guide surface;
the wing board, the wing board pass through the connecting piece install in the wind-guiding surface, the wing board has leading edge, trailing edge, ventral surface, back and both sides face, the ventral surface with the back is all connected the leading edge with the trailing edge, the side is connected the back with the ventral surface, two interval between the side is in the leading edge orientation reduce gradually in the direction of trailing edge, the ventral surface or the back with be formed with the air gap between the wind-guiding surface.
2. The air deflection assembly of claim 1, wherein the ventral surface is positioned between the back surface and the air deflection surface, the ventral surface being connected to the air deflection surface by a connecting member.
3. The air deflection assembly of claim 2, wherein the trailing edge is closer to the air deflection surface than the leading edge.
4. The air deflection assembly of claim 3, wherein said back surface has an arc length H corresponding to an airfoil section of said wing panel1The arc length or the straight line length of the ventral surface corresponding to the airfoil section of the wing plate is H2，H1Greater than H2。
5. The air deflection assembly of claim 4, wherein the number of wing plates is plural, and the plurality of wing plates are arranged at intervals along the length direction of the air deflection plate.
6. The air deflection assembly of claim 5, further comprising at least one deflection bracket, wherein two ends of the deflection bracket are connected to the deflection surface, a deflection channel is defined between an inner surface of the deflection bracket and the deflection surface, the deflection channel guides the flow along the width direction of the air deflection plate, and the plurality of wing plates are arranged in the deflection direction of the deflection channel.
7. The air deflection assembly of claim 6, wherein the central portion of the deflection bracket is connected to the deflection surface by an abutment.
8. The air deflection assembly of claim 6, wherein the number of the deflection brackets is two, the two deflection brackets are spaced apart along the length of the air deflection panel, the plurality of wing panels includes a first wing group and a second wing group, and the first wing group and the second wing group are disposed within the two deflection channels.
9. An air deflection assembly according to any one of claims 5 to 8, wherein the leading edge is spaced from the maximum thickness of the wing panel by a distance C1The distance between the trailing edge and the maximum thickness position of the wing plate is C2，C1Less than C2。
10. The air deflection assembly of claim 8, wherein the wing panel has an angle of attack with respect to the air deflection panel of no less than 30 ° and no greater than 70 °.
11. The air deflection assembly of claim 10, wherein the wing panel has an angle of attack with respect to the air deflection of no less than 35 ° and no greater than 55 °.
12. The air deflection assembly of claim 9, wherein the wing panel has a chord length C and a maximum span L, and wherein C/L has a value of not less than 1.5 and not greater than 4.
13. The air deflection assembly of any one of claims 1 to 7, wherein the air guide surfaces are concavely curved.
14. An air conditioner having an outlet, wherein at least one air deflection assembly as claimed in any one of claims 1 to 13 is mounted at the outlet.
15. The air conditioner of claim 14, wherein the air conditioner is a wall-mounted indoor air conditioner unit.
Priority Applications (1)
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Cited By (1)
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|---|---|---|---|---|
| CN111351129A (en) * | 2020-03-26 | 2020-06-30 | 青岛海尔空调器有限总公司 | Indoor unit of air conditioner |
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| CN110749079B (en) | 2023-09-08 |
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