CN110749079B - Air deflector assembly and air conditioner - Google Patents
Air deflector assembly and air conditioner Download PDFInfo
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- CN110749079B CN110749079B CN201911219063.5A CN201911219063A CN110749079B CN 110749079 B CN110749079 B CN 110749079B CN 201911219063 A CN201911219063 A CN 201911219063A CN 110749079 B CN110749079 B CN 110749079B
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- air
- air deflection
- wing
- wing plate
- wind
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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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Flow Control Members (AREA)
Abstract
The application discloses an air deflector assembly and an air conditioner, wherein the air deflector assembly comprises an air deflector and an air conditioner wing plate, wherein the air deflector is provided with an air deflector surface; the wing plate is installed in the wind-guiding face through the connecting piece, the wing plate 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 the direction of trailing edge reduces gradually, the ventral surface perhaps the back with be formed with the air-passing clearance between the wind-guiding face. The technical scheme of the application can realize rapid heat transfer of the air conditioner, soften the air flow and realize the effect of no or slight wind sense.
Description
Technical Field
The application 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 with a certain angle with the air supply flow, and the air supply direction is controlled by blocking and guiding.
However, when the air deflector delivers air, the air flow speed is high, and cold air is easy to blow directly, so that discomfort and even cold of users are caused.
The current no wind sense air conditioner is mainly through setting up the micropore on the aviation baffle, through carrying out the step-down acceleration to the air current, makes stranded air current follow micropore blowout, forms many high-speed disturbance sources in the air outlet region, reaches the quick mixing of air outlet air current and environment air current, reaches the reduction air conditioner air-out distance, keeps sufficient refrigerating capacity simultaneously.
Because the wind resistance of the existing microporous air deflector is large, when the air quantity is large, the air flow is limited by the air deflector, and is difficult to flow out of the air deflector rapidly, so that the wind power is wasted, and the requirement of no wind sensation is difficult to be met rapidly.
Disclosure of Invention
The application mainly aims to provide an air deflector assembly, which aims to solve the technical problems of large wind resistance, poor wind sensation-free effect and the like of the conventional microporous air deflector.
In order to solve the above-mentioned problem, the utility model provides an air deflection assembly, include:
the air guide plate is provided with an air guide surface;
the wing plate is installed in the wind-guiding surface through the connecting piece, the wing plate 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 the direction of trailing edge reduces gradually, the ventral surface or the back with be formed with the air-passing clearance between the wind-guiding surface.
In an embodiment, the ventral surface is located between the back surface and the air guiding surface, and the ventral surface is connected to the air guiding surface through a connecting piece.
In an embodiment, the trailing edge is closer to the wind-guiding surface than the leading edge.
In one embodiment, the back surface has an arc length H corresponding to the airfoil section of the wing panel 1 The arc length or the straight line length of the ventral surface corresponding to the airfoil section of the wing plate is H 2 ，H 1 Greater than H 2 。
In an embodiment, the number of the wing plates is a plurality, and the plurality of wing plates are arranged at intervals along the length direction of the air deflector.
In an embodiment, the air deflector assembly further comprises at least one air deflector support, two ends of the air deflector support are connected with the air deflector surface, an air deflector channel is formed by enclosing between the inner surface of the air deflector support and the air deflector surface, the air deflector channel is used for guiding air in the width direction of the air deflector, and a plurality of wing plates are arranged in the air deflector direction of the air deflector channel.
In an embodiment, the middle part of the guiding support is connected with the air guiding surface through a branch teaching.
In an embodiment, the number of the guide brackets is two, the two guide brackets are arranged at intervals in the length direction of the air deflector, the plurality of wing plates comprise 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 leading edge is spaced a distance C from the maximum thickness of the wing panel 1 The distance between the trailing edge and the maximum thickness of the wing plate is C 2 ，C 1 Less than C 2 。
In an embodiment, the angle of attack of the wing panel with respect to the deflector is not less than 30 ° and not more than 70 °.
In an embodiment, the angle of attack of the wing panel with respect to the deflector is not less than 25 ° and not more than 55 °.
In an embodiment, the chord length of the wing panel is C, the maximum span of the wing panel is L, and the value of C/L is not less than 1.5 and not more than 4.
In an embodiment, the wind guiding surface is arranged in a concave arc surface.
The application also discloses an air conditioner, which is provided with an air outlet, wherein at least one air deflector assembly is arranged at the air outlet, the air deflector assembly comprises an air deflector and an air deflector plate, and the air deflector is provided with an air deflector surface; the wing plate is installed in the wind-guiding face through the connecting piece, the wing plate 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 the direction of trailing edge reduces gradually, the ventral surface perhaps the back with be formed with the air-passing clearance between the wind-guiding face.
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 air flows along the front edge of the wing plate to the rear edge of the wing plate, vortex is formed at the rear edge of the wing plate, the radius of the vortex is gradually enlarged, and the speed of the vortex is gradually reduced in the subsequent operation process of the formed vortex, so that rapid heat transfer can be realized, the air flow is gently softened, and no wind sense or breeze sense effect is realized.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an embodiment of an air deflection assembly of the present application;
FIG. 2 is a schematic view of the air deflection assembly of FIG. 1 from another perspective;
FIG. 3 is a further view of the air deflection assembly of FIG. 1 (from the direction of air supply);
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 engine wing plate of FIG. 5 taken along line A-A;
FIG. 7 is a view showing the structure of the orientation of the three parts of the wing plate, the guide bracket and the guide plate, and the angle of attack α, and the plane S in FIG. 6 1 Plane S 2 Schematic of (2);
FIG. 8 is a schematic view of the airfoil section structure of the wing panel 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 maximum thickness of the wing panel;
FIG. 10a is a schematic view of an airflow flow field where the airflow flows rearward from the front edge of the engine wing plate; wherein α=15°;
FIG. 10b is a schematic view of an airflow flow field where the airflow flows rearward from the front edge of the engine wing plate; wherein α=25°;
FIG. 10c is a schematic view of an airflow flow field where the airflow flows rearward from the front edge of the wing panel; wherein α=35°;
FIG. 10d is a schematic view of an airflow flow field where the airflow flows rearward from the front edge of the wing plate; wherein α=45°;
FIG. 10e is a schematic view of an airflow flow field where the airflow flows rearward from the front edge of the engine wing plate; wherein α=55°;
FIG. 10f is a schematic view of an airflow flow field where the airflow flows rearward from the front edge of the engine wing plate; wherein α=60°;
FIG. 10g is a schematic view of an airflow flow field where the airflow flows rearward from the front edge of the engine wing plate; wherein α=65°;
FIG. 10h is a graph showing the flow vorticity contour surface of the airflow flowing backward from the front edge of the wing plate; where α=70°.
Reference numerals illustrate:
| reference numerals | Name of the name | Reference numerals | Name of the name |
| 10 | Air deflector assembly | 11 | Air deflector |
| 12 | Wing plate of machine | 13 | Connecting piece |
| 14 | Diversion bracket | 11a | Air guiding surface |
| 11b | Leeward surface | ||
| 111 | A first edge | 112 | Second edge |
| 121 | Leading edge | 122 | Trailing edge |
| 12a | Ventral surface | 12b | Back surface |
| 14a | Deflector plate | 14b | Connecting plate |
| 140 | Diversion channel | 141 | Windward opening |
| 142 | Air supply port | 143 | Via hole |
The achievement of the objects, functional features and advantages of the present application will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present application are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present application.
The application provides an air deflector assembly and an air conditioner comprising the same, and the air conditioner can be a split type air conditioner or an integral type air conditioner. Regarding the air conditioner, the following description will be made with reference to a specific embodiment of an indoor unit of a wall-mounted air conditioner.
Referring to fig. 1 to 7, an air deflection assembly 10 includes an air deflection 11 and wing plates 12, the air deflection 11 having an air deflection face 11a; the wing plate 12 is mounted on the wind guiding surface 11a through a connecting piece 13, the wing plate 12 is provided with a front edge 121, a rear edge 122, a ventral surface 12a, a back surface 12b and two side surfaces, the ventral surface 12a and the back surface 12b are both connected with the front edge 121 and the rear edge 122, the side surfaces are connected with the back surface 12b and the ventral surface 12a, the distance between the two side surfaces is gradually reduced in the direction of the front edge 121 towards the rear edge 122, and a wind passing gap P is formed between the ventral surface 12a or the back surface 12b and the wind guiding surface 11a.
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 which extend in the longitudinal direction thereof and are provided so as to be opposed to each other, and the air guide plate 11 further has a leeward surface 11b (the leeward surface 11b also has an air guide function when a certain angle is formed) opposed to the air guide surface 11a. Of course, the air deflector 11 may have a certain curvature, for example, the air guiding surface 11a may have a certain concave curvature, and the leeward surface 11b may also have a certain curvature.
Referring to fig. 6-8, the wing panel 12, as the name implies, is structured and constructed 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 when it is exposed to the wind, and the trailing edge 122 refers to the trailing edge of the wing panel 12 when it is exposed to the wind, i.e. the wing panel 12 when it is exposed to the wind, the airflow flows from the leading edge 121 to the trailing edge 122. When the airflow passes through the wing plate 12, a part of the airflow flows along the ventral surface 12a and a part of the airflow flows along the rear surface 12b, and the airflow flows along the flow path (corresponding to H 1 ) Is smaller than the flow path of the air flow on the back surface 12b (corresponding to H 2 ) The two flows start from the front edge 121 and reach the rear edge 122 at the same time, so that the velocity of the air flow at the rear face 12b is greater than the velocity of the air flow at the ventral face 12a, and thus the pressure of the air flow at the rear face 12b is smaller than that at the ventral face.
In addition, referring to fig. 6 to 8, the nose (the front edge 121 is located at the nose) of the wing panel 12 is rounded, and the tail (the rear edge is located at the tail) of the wing panel 12 is generally wedge-shaped.
Referring to fig. 2 and 3, for the wing panel 12, the wing panel 12 itself further has two sides (not shown) between the ventral surface 12a and the dorsal surface 12b, the spacing between the two sides gradually decreasing in the direction of the leading edge 121 toward the trailing edge 122, and the maximum span L being the leading edge length. The chord length C refers to 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 12 1 Less than the distance C between the trailing edge 122 and the maximum thickness of the wing panel 12 2 . For the back face 12b, it is a cambered face, for the ventral face 12aIt may be planar or cambered.
With continued reference to fig. 1 to 3, the wing plate 12 and the wind deflector 11 are connected by a connecting member 13, and on one hand, the connecting member 13 may be a columnar structure, or may be a regular or irregular protrusion provided on the wind guiding surface 11a, or may be a regular or irregular protrusion provided on the surface of the wing plate 12. In a further aspect, the connector 13 may be connected to the wind-guiding surface 11a at one end and to the side, back or ventral surface 12b, 12a of the wing panel 12 at the other end. On the other hand, the connecting piece 13 may also be a sheet-like structure, for example, the sheet-like structure extends along the direction of the air flow, which on the one hand can play a role in guiding the air flow, on the other hand can reduce the resistance of the air flow, and on the other hand, has a certain division effect on the air flow passing through the air guiding surface 11a, and slows down the formation of vortex.
Referring to fig. 10, when the air flow blows across the width of the air deflector 11, a portion of the air flow forms a spiral wake with respect to the wing plate because the air flow passes from the ventral surface 12a to the dorsal surface 12b and from the leading edge 121 to the trailing edge 122. That is, the airflow is straight when flowing through the air deflector 11, and a plurality of vortex wake flows can be formed after being guided by the multi-machine wing plate 12, so that the mass and heat transfer effect is enhanced, and the convection heat exchange capacity is improved; the travel of the air flow is reduced on the premise of not reducing the heat exchange quantity; strong convection and strong heat exchange are realized in a range close to the air outlet, and the effect of soft wind sensation can be realized in a slightly far range.
In the above description, there are mainly two modes of mounting the wing plate 12 to the wind deflector 11, the first mode is that the ventral surface 12a faces the wind guiding surface 11a, and the second mode is that the back surface 12b faces the wind guiding surface 11a. Since a part of the air flow is to flow from the ventral surface 12a to the rear surface 12b during the air guiding, in order to avoid the formation of vortex to blow the air guiding plate 11 and reduce the vortex effect, in the present embodiment, the ventral surface 12a of the wing plate 12 is located between the rear surface 12b and the air guiding surface 11a, and the ventral surface 12a is connected to the air guiding surface 11a by the connecting member 13.
Further, in order to prevent the vortex air flow guided by the wing plate 12 itself from being interfered by the wind deflector 11, in this embodiment, the trailing edge 122 is closer to the wind guiding surface 11a than the leading edge 121. In this way, the blown-out vortex is angled with respect to the air guiding 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 deflection assembly 10 further includes at least one air deflection bracket 14, two ends of the air deflection bracket 14 are connected to the air deflection surface 11a, an air deflection channel 140 is formed by enclosing between the inner surface of the air deflection bracket 14 and the air deflection surface 11a, the air deflection channel 140 deflects along the width direction of the air deflection 11, and a plurality of wing plates 12 are disposed in the direction of the air deflection channel 140.
For the diversion bracket 14, the airflow is collected on one side, so that the airflow can flow to the wing plate 12 more smoothly; on the other hand, the air flow guiding device has an air flow guiding function, and reduces the formation of vortex in the air outlet of the air conditioner.
For an air conditioner, the wind speed of an air outlet is approximately 0.5 m/s-4 m/s, and for example, the wind speed can be reduced to approximately 0 after the air is guided by a common plate-shaped air guide plate and passes a distance of about 5 m. After passing through the air deflector assembly, the air speed can be reduced to be approximately 0 after passing through the distance of about 2m, the blown air flow and indoor air exchange heat fully within the range from the air outlet to the air flow blowing out by 2m, and the air speed is extremely low outside 2 m.
In consideration of the factors that determine the formation of the vortex when the wing plate 12 is guided, there are a plurality of factors such as the flow rate of the airflow passing through the wing plate 12, the configuration of the wing plate 12 itself, the angle of attack α of the wing plate 12, and the like. In one embodiment, in order to further enhance the swirling effect of the wing plate 12, the flow guiding channel 140 has an air inlet 141 and an air outlet 142, and the flow guiding channel 140 is configured with a reduced opening in a direction of the air inlet 141 toward the air outlet 142. Thus, when the air flow is blown out through the diversion channel 140, the diversion channel 140 has a supercharging effect on the air flow, so that the wind speed is increased, and the vortex formed by the wing plate 12 is also enhanced (vortex effect and vortex quantity).
In one embodiment, the middle part of the air guiding bracket 14 is connected with the air guiding surface 11a through a support leg 15. Therefore, on one hand, the air flow guiding bracket can be reinforced, and on the other hand, the air flow flowing through the air guiding channel 140 can be divided into a plurality of areas, so that the formation of vortex is further reduced, and the wind resistance is reduced.
Further, in another preferred embodiment, the number of the guide brackets 14 is two, two guide brackets 14 are spaced apart in the length direction of the air deflector 11, and the plurality of wing plates 12 includes a first wing group and a second wing group, and the first wing group and the second wing group are disposed in two guide channels 140.
For the wall-mounted air conditioner indoor unit, the wind wheel is generally a cross-flow wind wheel, when the cross-flow wind wheel sends wind, the wind speed and the wind quantity of the middle air supply are large, the wind quantity and the wind speed of the two ends are extremely small, and the air flow is blown through the diversion channel, so that the whistle can be generated.
In this embodiment, referring to fig. 3, the air guiding bracket 14 includes an air guiding plate 14a opposite to the air guiding plate 11, and connecting plates 14b at two ends of the air guiding plate 14a in the length direction, and through holes 143 are formed in the connecting plates 14b at one end of the air guiding plate 11 in the length direction, which communicate the air guiding channel 140 with the air duct, so that noise is greatly reduced.
The inclination angle of the wing plate itself cannot be too large or too small. The tilting of the wing panel 12 will be further discussed in this embodiment. Referring to fig. 7, the plane of the first edge 111 and the second edge 112 is defined as S 1 The plane of the leading edge 121 and the trailing edge 122 is S 2 ，S 1 And S is equal to 2 The included angle alpha is not less than 15 deg. and not more than 70 deg.. Here, the air guiding surface 11a may be a plane or an arc surface, and when the air guiding surface 11a is a plane, the plane S is 1 Namely, the wind guiding surface 11a, when the wind guiding surface 11a is an arc surface, the plane S 1 Is not overlapped with the wind guiding surface 11a. Referring to fig. 10a to 10h, the wing plate 12 is mounted on the wind guiding surface 11a so as to be inclined with respect to the plane S 1 A kind of electronic device.
Through simulation experiment tests, the vortex strength is weak when alpha=15°, the vortex condition is obviously changed when alpha=70°, and the wing tip vortex degree is weak. The wing tip vortex condition is relatively ideal when alpha is 15-70 degrees, and the value range of the proper attack angle alpha can be judged to be 15-70 degrees according to numerical simulation
The vortex strength is stronger in the range of alpha=15° to alpha=55° except that the influence range of vortex wake flow is smaller when alpha=15° and alpha=25° is less, which is unfavorable for driving the rear air to rotate. The vortex situation changes significantly when α=70°, with weak wingtip vortex. The wingtip vortex situation is ideal when α=25° to α=55°.
But merely by virtue of the streamline distribution is not sufficient to judge the effect of alpha on vortex wake. Vorticity is a physical quantity that reflects the intensity of the vortex.
The vortex core length of the vortex wake is greatest when the angles of attack α=15° and α=25°. However, the angle of attack alpha is small, and the wake flow influence range is relatively small, so that the angle is suitable for the use situations of long-distance air supply and heat exchange efficiency enhancement. In the range of α=35° to α=55°, the vortex flow distribution is similar, and the larger the angle of attack α is, the stronger the ability to break up the incoming flow, so that it is considered that the effect of fluidizing the gas into the vortex wake is best when α=55°. The angle of attack of α=35° to α=55° is suitable for the design requirement of shorter distance air supply and soft wind feeling. When the attack angle α is too large, the raised wing plate 12 blocks the wind channel to affect the incoming wind volume, and when α=60° the vortex flow distribution range is reduced, and when α=70° the vortex flow distribution is already small, so comprehensive analysis considers that α >70 ° no vortex wake can be generated any more.
In the above embodiment, referring to fig. 1 to 5, the number of the wing plates 12 may be one, and of course, in order to achieve better flow guiding effect, the number of the wing plates 12 is plural, and the plural wing plates 12 are arranged at intervals along the length direction of the air deflector 11. For example, the number of wing panels 12 may be 5 to 12.
When the air is blown out along the width direction of the air guide plate 11 during air guiding, the air flows from the front edge 121 to the rear edge 122 along the back surface 12b and the ventral surface 12a, the air flows mainly at the rear edge 122 and near the two side surfaces of the wing plate 12 form vortex, so that, relatively speaking, if the wing span L of the wing plate 12 is longer, the distance between the two adjacent vortex is larger. In this embodiment, the chord length of the wing panel 12 is C, and the maximum span (length of the leading edge) of the wing panel 12 is L, where C/L > 1.
Even if C/L > 1 is satisfied, the value of C/L can not be made small, and as tested by simulation experiments, the swirling flow is approximately close at the trailing edge 10C when C/l=1.5, but C/l=1.5. In addition, the C/L cannot be excessively large, for example, when C/l=4, the two eddies at the rear edge of the wing plate 12 (which have not yet flowed out of the wing plate) almost contact together, so that the C/L continues to rise, and the two eddies interfere with each other, thereby affecting mass transfer and subsequent heat exchange. In this example, 1.5.ltoreq.C/L.ltoreq.4.
When the airflow blows across the two adjacent wing plates 12, the tail tips (one end of the trailing edge 122) of the two adjacent wing plates 12 form vortices, and when the vortices flow along the direction away from the wing plates 12, the radius of the vortices becomes larger and larger, for example, the two wings are too close to each other, and the vortices generated by the two adjacent wing tips (the two tips of the trailing edge 122 of the wing plates 12) are easy to interfere. If too far apart, more airflow does not flow past the tips, reducing the overall swirling effect. The best effect is that the vortices generated by two adjacent wingtips are just close in distance and do not intersect.
Therefore, the interval between the adjacent two wing plates 12 is not necessarily too small. In addition, if the space between the two wing plates 12 is too large, the blown swirling airflow is relatively loose, which is unfavorable for mass transfer and heat exchange.
The above embodiments have been described with respect to both the post-like connector 13 and the sheet-like connector 13, and in this embodiment, the connector 13 will be further described.
For the columnar connectors 13 (the embodiment of the columnar connectors 13 is not shown in the figure), after the air flows pass through the columnar connectors 13, each columnar connector forms a pair of vortex streets, and then continues to propagate forward, and the blown air flow has a karman vortex street effect, so that the air can be quickly mixed with indoor air, and the heat exchange mixed flow effect is further improved. Therefore, the columnar connector 13 is provided at a position close to the leading edge 121, and the space between the vortex street and the vortex can be widened to avoid interference between the vortex street and the vortex. In addition, the area between the adjacent two vortices is less affected by the air flow (air blow-through) before the radius of the adjacent two vortices expands and meets, so if the location where the cylindrical connecting piece 13 connects the back surface 12b is located at the perpendicular bisector of the span, the blank space between the adjacent two vortices can be exactly compensated.
Referring to fig. 3 and 4, for the sheet-like connection member 13, since the structure has a certain division effect on the airflow, the vortex formation (the formation of vortex in advance is unfavorable for the formation of vortex at the rear edge 122 of the wing plate 12, and the vortex may be rushed to vortex) can be greatly reduced, so that the sheet-like connection member 13 is disposed at a position close to the front edge 121, which can play a role in rectifying 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 midspan of the span, the radius and flow rate of the vortex formed by the two trailing tips of the trailing edge 122 of the wing panel 12 can be maintained uniform and the overall mass and heat transfer more uniform.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the scope of the application, and all equivalent structural changes made by the description of the present application and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the application.
Claims (12)
1. An air deflection assembly, comprising:
the air guide plate is provided with an air guide surface;
the wing plate is arranged on the wind guide surface through a connecting piece, the wing plate is provided with a front edge, a rear edge, a ventral surface, a back surface and two side surfaces, the ventral surface and the back surface are both connected with the front edge and the rear edge, the side surfaces are connected with the back surface and the ventral surface, the distance between the two side surfaces is gradually reduced in the direction of the front edge towards the rear edge, and a wind passing gap is formed between the ventral surface or the back surface and the wind guide surface;
the distance between the front edge and the maximum thickness of the wing plate is C 1 The distance between the trailing edge and the maximum thickness of the wing plate is C 2 ，C 1 Less than C 2，
The arc length of the back surface corresponding to the airfoil section of the wing plate is H 1 The arc length or the straight line length of the ventral surface corresponding to the airfoil section of the wing plate is H 2 ，H 1 Greater than H 2 ；
The incidence angle of the wing plate relative to the air deflector is not less than 30 degrees and not more than 70 degrees.
2. The air deflection assembly of claim 1, wherein the web is positioned between the back side and the air deflection surface, the web being connected to the air deflection surface by a connector.
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 1, wherein the number of wing panels is a plurality, and wherein the plurality of wing panels are spaced apart along the length of the air deflection.
5. The air deflection assembly of claim 4, wherein the air deflection assembly further comprises at least one air deflection bracket, wherein two ends of the air deflection bracket are connected with the air deflection surface, wherein a guide channel is formed by enclosing an inner surface of the air deflection bracket and the air deflection surface, the guide channel deflects along the width direction of the air deflection plate, and a plurality of wing plates are arranged in the guide direction of the guide channel.
6. The air deflection assembly of claim 5, wherein a central portion of the air deflection support is coupled to the air deflection surface by a support.
7. The air deflection assembly of claim 5, wherein the number of air deflection brackets is two, the two air deflection brackets are spaced apart along the length of the air deflection, and the plurality of wing panels comprises a first wing set and a second wing set, the first wing set and the second wing set being disposed within the two air deflection channels.
8. The air deflection assembly of claim 1, wherein the wing plates have an angle of attack with respect to the air deflection of not less than 35 ° and not more than 55 °.
9. The air deflection assembly of claim 1, wherein the wing panels have a chord length C, and wherein the wing panels have a maximum span L, and wherein the value of C/L is not less than 1.5 and not greater than 4.
10. The air deflection assembly of any one of claims 1 to 6, wherein the air deflection is provided in a concave arcuate configuration.
11. An air conditioner having an air outlet, wherein at least one air deflection assembly according to any one of claims 1 to 10 is mounted at the air outlet.
12. The air conditioner of claim 11, wherein the air conditioner is a wall-mounted air conditioner indoor unit.
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| CN111351129B (en) * | 2020-03-26 | 2022-04-19 | 青岛海尔空调器有限总公司 | Indoor unit of air conditioner |
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| CN110749079A (en) | 2020-02-04 |
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