CN201771867U - Air guide device - Google Patents
Air guide device Download PDFInfo
- Publication number
- CN201771867U CN201771867U CN2010202846727U CN201020284672U CN201771867U CN 201771867 U CN201771867 U CN 201771867U CN 2010202846727 U CN2010202846727 U CN 2010202846727U CN 201020284672 U CN201020284672 U CN 201020284672U CN 201771867 U CN201771867 U CN 201771867U
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- wind
- arc
- air guide
- guiding
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Abstract
The utility model relates to an air guide device, which comprises an arc-shaped or conical tapered air guide inlet section and a cylindrical guide parallel section. The air guide device is characterized by further comprising an arc-shaped or conical diffuser outlet section, and the arc-shaped or conical tapered air guide inlet section, the cylindrical guide parallel section and the arc-shaped or conical diffuser outlet section are successively connected integrally. The arc-shaped or conical diffuser outlet section is added on the existing air guide device, so that blade tip vortex generated by an axial flow wind wheel can be restrained effectively and clearance vortex generated in a radial clearance between the axial flow wind wheel and the air guide device is avoided simultaneously, thereby effectively enhancing pressure, increasing air quantity, reducing noise, decreasing power of a motor, and then improving integral cooling and heating capacity and energy efficiency ratio of an outdoor unit.
Description
Technical field
The utility model relates to a kind of wind-guiding device, particularly a kind ofly help eliminating fan blade tip vortex, improve fan static pressure, improve air quantity, reduce the wind-guiding device of noise, be applicable to that air devices such as outdoor machine of body-separated air-conditioner, window air conditioner, roof machine use.
Background technique
The air conditioner outdoor machine that is assembled with wind-guiding device is usually as shown in Figure 1: on the chassis 2 of outdoor unit 1 condenser 3 is housed, electric machine support 4, front panel 5, compressor 6, motor 7 is installed on the electric machine support 4, the front of motor 7 is equipped with axial-flow windwheel 8, wind-guiding device 9 is fixed on the front panel 5, when being fixed in axial-flow windwheel 8 high speed rotating on the motor 4, outdoor sky becomes hot blast or cold wind because differential pressure action carries out cold and hot exchange through condenser 3, after being collected by wind-guiding device 9, discharges from front panel 5 fronts, thereby realize cold and hot exchange, constitute hot and cold air-conditioning.Above-mentioned air conditioner outdoor machine is employed to be the wind-guiding device 9 of traditional form, and its structure is generally the cylinder column, as shown in Figure 2, or a little enlarging is arranged in the front portion of cylinder, as shown in Figure 3.The wind-guiding device of these two kinds of forms is unfavorable for suppressing the blade tip vortex that axial-flow windwheel 8 produces, in the radial clearance 10 of axial-flow windwheel 8 and wind-guiding device 9, generate the gap vortex simultaneously easily, thereby cause air quantity to reduce, pressure reduces, noise increases, the power of motor 7 increases, thereby causes the energy consumption of outdoor unit 1 complete machine to increase, and performance reduces.
The model utility content
The technical problems to be solved in the utility model is to overcome above-mentioned the deficiencies in the prior art, provide and to suppress axial-flow windwheel blade tip vortex, improve the air quantity and the pressure of axial-flow windwheel, reduce noise, and reduce power of motor, thereby improve the wind-guiding device of whole outdoor unit Energy Efficiency Ratio.
The technical solution of the utility model is: a kind of wind-guiding device, comprise circular-arc or coniform convergent wind-guiding inducer, cylindric water conservancy diversion parallel-segment, and it is characterized in that: also comprise circular-arc or coniform diffusion outlet section, three sections are in turn connected into one.
The inlet diameter of described wind-guiding inducer is D1, and the diameter of water conservancy diversion parallel-segment is D2, and the diameter of diffusion outlet section is D3,15≤D1-D2≤60mm and 5≤D3-D2≤50mm.
The axial length of described wind-guiding inducer is L1,10≤L1≤150mm; The axial length of water conservancy diversion parallel-segment is L2,5≤L2≤45mm; The axial length of diffusion outlet section is L3,5≤L3≤45mm.
The oral area circumferential section of described wind-guiding inducer is provided with cutting mouth more than.
The utility model is owing to adopt the structure that increases circular-arc or coniform diffusion outlet section on existing wind-guiding device, therefore, can effectively suppress the blade tip vortex that axial-flow windwheel produces, avoid generating in the radial clearance between axial-flow windwheel and wind-guiding device the gap vortex simultaneously, thereby adherence pressure effectively, improve air quantity, reduced noise and the power that has reduced motor, and then the cooling and heating ability and the Energy Efficiency Ratio of promote outdoor machine complete machine.
Description of drawings
Fig. 1 is the drawing in side sectional elevation of the outdoor unit of conventional air conditioner;
Fig. 2 is the sectional arrangement drawing of a traditional wind-guiding device;
Fig. 3 is the sectional arrangement drawing of another traditional wind-guiding device;
Fig. 4 is the embodiment's of the utility model wind-guiding device a sectional arrangement drawing;
Fig. 5 is a stereogram of the present utility model;
Fig. 6 is provided with the stereogram of cutting mouth for the wind-guiding inducer oral area circumferential section to the utility model wind-guiding device;
Fig. 7 is provided with another embodiment's of cutting mouth stereogram for the wind-guiding inducer oral area circumferential section to the utility model wind-guiding device;
Fig. 8 is axial-flow windwheel blade tip vortex characteristic figure;
The blade tip vortex figure in axial-flow windwheel downstream during the conventional wind-guiding device of the employing that Fig. 9 photographs for PIV;
The blade tip vortex figure in axial-flow windwheel downstream during the novel wind-guiding device of employing that Figure 10 photographs for PIV.
Embodiment
Below in conjunction with embodiment and accompanying drawing the utility model wind-guiding device is described further.
Shown in Fig. 4,5, the utility model wind-guiding device, 12 comprise that successively circular-arc or coniform convergent wind-guiding inducer 13, cylindric water conservancy diversion parallel-segment 14, circular-arc or coniform diffusion outlet section are in turn connected into one for 15, three sections from intake grill 11 to exhaust outlet; The inlet diameter of described wind-guiding inducer 13 is D1, and the diameter of water conservancy diversion parallel-segment 14 is D2, and the diameter of diffusion outlet section 15 is D3,15≤D1-D2≤60mm and 5≤D3-D2≤50mm; The axial length of described wind-guiding inducer 13 is L1,10≤L1≤150mm; The axial length of water conservancy diversion parallel-segment 14 is L2,5≤L2≤45mm; The axial length of diffusion outlet section 15 is L3,5≤L3≤45mm.
As shown in Figure 6, when the utility model air-ducting ring is assembled in the air conditioner outdoor machine shown in Figure 11, for avoiding interfering because of space reason and condenser 3 and central diaphragm 16, oral area circumferential section to wind-guiding inducer 13 carries out the part cutting, form cutting mouth 131 more than, wind-guiding inducer 13 part cutting among a small circle is very little to the attenuating of complete machine air quantity performance.
As shown in Figure 7, be provided with another embodiment's of cutting mouth stereogram for wind-guiding inducer 13 oral area circumferential sections to the utility model wind-guiding device, purpose also is to interfere because of space reason and condenser 3 and central diaphragm 16 for avoiding, and this cutting is mouthful also very little to the attenuating of complete machine air quantity performance.
Though present embodiment has only provided two kinds of local cutting ways of wind-guiding inducer 13, other the local cutting way of other wind-guiding inducer 13 that satisfies the utility model wind-guiding device univers parameter feature is also in protection domain of the present utility model.
When the utility model air-ducting ring is assembled in the air conditioner outdoor machine shown in Figure 11; the circular-arc wind-guiding inducer 13 of the utility model and its inlet diameter D1 are in protection domain of the present utility model the time; under the prerequisite of air intake zone that effectively guarantees axial-flow windwheel 8 and air output; can suppress the generation development of the blade tip vortex 17 of the axial-flow windwheel 8 shown in Fig. 8 to greatest extent, intensity and the influence area that can significantly weaken blade tip vortex 17.When the axial-flow windwheel 8 that Fig. 9 photographs for the experiment of utilization PIV equipment adopts conventional wind-guiding device, the characteristic pattern of the blade tip vortex 17 in the downstream of axial-flow windwheel 8, as can be seen from Figure 9, entrainmenting of blade tip vortex 17 is regional big, the vortex intensity value was for-602 (negative sign represents that the direction of entrainmenting of vortex is the clockwise direction rotation), after the axial-flow windwheel 8 that Figure 10 photographs for the experiment of utilization PIV equipment adopts the utility model wind-guiding device, the characteristic pattern of the blade tip vortex 17 in the downstream of axial-flow windwheel 8, as can be seen from Figure 10, after adopting the utility model wind-guiding device, the zone of entrainmenting of blade tip vortex 17 significantly reduces, it was-363 (negative sign represents that the direction of entrainmenting of vortex is that clockwise direction rotates) that the vortex intensity value weakens, vortex intensity weakens 40%, thereby the power of the motor 7 that can reduce 17 development of blade tip vortex effectively and consume, and the noise of reduction axial-flow windwheel 8.
In addition, circular-arc or the coniform diffusion outlet section 15 that the utility model increases, and the difference of the diameter D2 of its diameter D3 and water conservancy diversion parallel-segment 14 is when the feature of D2 diameter is in 5 to 50 millimeters scope, and its axial length L 3 is in 5 to 45 millimeters scope the time, on the one hand effectively with dynamic pressure Pv (dynamic pressure Pv=ρ V
2/ 2, ρ is an air density, V is local airspeed) when being converted into static pressure Pst, the diffusion loss that also can avoid excessive diffusion action effectively and bring, thereby promoted the static pressure Pst of axial-flow windwheel 8 effectively, the increase of static pressure Pst has effectively promoted the ability that axial-flow windwheel 8 overcomes the resistance of condenser 3 among Fig. 1, can effectively improve air quantity and increase air supplying distance; On the other hand, diffusion outlet section 15 of the present utility model also can make blade tip vortex 17 owing to the reduction of airspeed weakens vortex intensity, thereby vortex 17 differentiation are broken, and has reduced the eddy current noise that blade tip vortex 17 causes effectively.Thereby the draft capacity of promote outdoor machine complete machine reduces the air-supply noise on the whole, promotes the cooling and heating ability and the Energy Efficiency Ratio of complete machine.
Claims (4)
1. a wind-guiding device comprises circular-arc or coniform convergent wind-guiding inducer (13), cylindric water conservancy diversion parallel-segment (14), it is characterized in that: also comprise circular-arc or coniform diffusion outlet section (15), three sections are in turn connected into one.
2. wind-guiding device according to claim 1, the inlet diameter that it is characterized in that described wind-guiding inducer (13) is D1, and the diameter of water conservancy diversion parallel-segment (14) is D2, and the diameter of diffusion outlet section (15) is D3,15≤D1-D2≤60mm and 5≤D3-D2≤50mm.
3. wind-guiding device according to claim 2, the axial length that it is characterized in that described wind-guiding inducer (13) is L1,10≤L1≤150mm; The axial length of water conservancy diversion parallel-segment (14) is L2,5≤L2≤45mm; The axial length of diffusion outlet section (15) is L3,5≤L3≤45mm.
4. according to each described wind-guiding device of claim 1 to 3, it is characterized in that the oral area circumferential section of described wind-guiding inducer (13) is provided with cutting mouthful (131) more than.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202846727U CN201771867U (en) | 2010-07-31 | 2010-07-31 | Air guide device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202846727U CN201771867U (en) | 2010-07-31 | 2010-07-31 | Air guide device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201771867U true CN201771867U (en) | 2011-03-23 |
Family
ID=43751713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202846727U Expired - Lifetime CN201771867U (en) | 2010-07-31 | 2010-07-31 | Air guide device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201771867U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103649549A (en) * | 2011-07-13 | 2014-03-19 | 松下电器产业株式会社 | Axial blower, and outdoor unit for air conditioner |
| CN106050744A (en) * | 2016-07-27 | 2016-10-26 | 珠海格力电器股份有限公司 | Air guide shell and fan |
| CN107345708A (en) * | 2016-05-05 | 2017-11-14 | 珠海格力电器股份有限公司 | Guiding device and air-conditioner outdoor unit |
| CN109958638A (en) * | 2019-04-22 | 2019-07-02 | 广东美的制冷设备有限公司 | Fan assembly and air-conditioner outdoor unit with it |
| CN112944492A (en) * | 2021-02-18 | 2021-06-11 | 青岛海信日立空调系统有限公司 | Outdoor machine of air conditioner |
-
2010
- 2010-07-31 CN CN2010202846727U patent/CN201771867U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103649549A (en) * | 2011-07-13 | 2014-03-19 | 松下电器产业株式会社 | Axial blower, and outdoor unit for air conditioner |
| CN103649549B (en) * | 2011-07-13 | 2016-07-06 | 松下电器产业株式会社 | The off-premises station of axial flow fan and air conditioner |
| CN107345708A (en) * | 2016-05-05 | 2017-11-14 | 珠海格力电器股份有限公司 | Guiding device and air-conditioner outdoor unit |
| CN106050744A (en) * | 2016-07-27 | 2016-10-26 | 珠海格力电器股份有限公司 | Air guide shell and fan |
| CN109958638A (en) * | 2019-04-22 | 2019-07-02 | 广东美的制冷设备有限公司 | Fan assembly and air-conditioner outdoor unit with it |
| CN112944492A (en) * | 2021-02-18 | 2021-06-11 | 青岛海信日立空调系统有限公司 | Outdoor machine of air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: MIDEA GROUP CO., LTD. Free format text: FORMER OWNER: MEIDI ELECTRIC APPLIANCES CO., LTD., GUANGDONG Effective date: 20131213 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20131213 Address after: 528311 Guangdong, Foshan, Beijiao, the United States, the United States and the United States on the avenue of the United States, the headquarters of the United States building B floor, District, 26-28 Patentee after: Midea Group Co., Ltd. Address before: 528311 Penglai Road, Beijiao Town, Foshan District, Guangdong, China, Patentee before: Meidi Electric Appliances Co., Ltd., Guangdong |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110323 |