CN102418715A - Axial flow wind wheel - Google Patents
Axial flow wind wheel Download PDFInfo
- Publication number
- CN102418715A CN102418715A CN2011104096419A CN201110409641A CN102418715A CN 102418715 A CN102418715 A CN 102418715A CN 2011104096419 A CN2011104096419 A CN 2011104096419A CN 201110409641 A CN201110409641 A CN 201110409641A CN 102418715 A CN102418715 A CN 102418715A
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- China
- Prior art keywords
- axial flow
- air
- axial
- guiding ring
- small holes
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention relates to an axial flow wind wheel, which comprises a wind guiding ring and an axial flow fan blade, wherein small holes are formed in the wind guiding ring uniformly; the diameter of each small hole is between 1 and 5 millimeters, and central distance between the adjacent small holes is between 2 and 50 millimeters; and the wind guiding ring is arranged at the wind outlet end of the axial flow fan blade. On the basis of the principle of sound absorption of the small holes, the small holes are formed in the wind guiding ring; when the axial flow wind wheel operates, airflow at the wind guiding ring converges, the speed of the airflow is high, and sound energy is concentrated; part of sound waves caused by the airflow passing through the wind guiding ring are radiated from the small holes to cause the vibration of air, so that the energy of the sound waves is attenuated, and the noise can be reduced by 2 to 8 dB(A). The invention is characterized in that: the axial flow wind wheel has a simple and reasonable structure, low noise and wide application range, and is flexibly operated and low in manufacturing cost.
Description
Technical field
The present invention relates to a kind of axial-flow windwheel.
Background technique
At present the outdoor unit of air conditioner often adopts axial-flow windwheel, and the present bigger noise of axial-flow windwheel ubiquity, and the noise of axial-flow windwheel mainly is made up of rotational noise and turbulence noise, when flow low-load greatly, is main with rotational noise; When the big load of small flow, be main with turbulence noise.The design of the air-ducting ring in the axial-flow windwheel or coupling are not good, usually are the main causes that causes problems such as air quantity is little, noise is higher.
Summary of the invention
The object of the invention aims to provide a kind of simple and reasonable, flexible operation, fabricating cost is low, noise is little, applied widely axial-flow windwheel, to overcome deficiency of the prior art.
A kind of axial-flow windwheel by this purpose design comprises air-ducting ring, and its structure characteristic is that air-ducting ring is provided with aperture.
Said aperture is distributed on the air-ducting ring.
The diameter of said aperture is 1～5mm.
The diameter of said aperture is 2～3mm.
Centre distance between the adjacent aperture is 2～50mm.
Centre distance between the adjacent aperture is 8～12mm.
Said axial-flow windwheel also comprises axial-flow leaf, and air-ducting ring is arranged on the outlet air end of axial-flow leaf.
The present invention is based on the principle of aperture sound absorption, air-ducting ring is provided with aperture, when axial-flow windwheel is worked; The air-flow at air-ducting ring place converges, and airspeed is big, and acoustic energy is comparatively concentrated; The acoustic wave segment that air-flow brought from the air-ducting ring process; To from aperture, radiate the vibration that causes air, thereby make the degradation of energy of this acoustic wave segment, can reduce noise 2～8dB (A).
That the present invention has is simple and reasonable, flexible operation, fabricating cost is low, noise is little and advantage of wide range of application.
Description of drawings
Fig. 1 is the main TV structure schematic representation of one embodiment of the invention.
Fig. 2 is the right TV structure schematic representation of Fig. 1.
Fig. 3 is the A place structure for amplifying schematic representation among Fig. 2.
Fig. 4 is air quantity noise curve figure of the present invention.
Among the figure: 1 is air-ducting ring, and 1.1 is aperture, and arrow is an airflow direction.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further described.
Referring to Fig. 1-Fig. 3, this axial-flow windwheel comprises air-ducting ring 1, and this air-ducting ring 1 is provided with aperture 1.1.This aperture 1.1 is distributed on the air-ducting ring 1.
Axial-flow windwheel also comprises axial-flow leaf, and air-ducting ring 1 is arranged on the outlet air end of axial-flow leaf.
In the present embodiment, the diameter D of aperture 1.1 is 1～5mm; The preferable scope of diameter D is 2～3mm.Centre distance L between the adjacent aperture 1.1 is 2～50mm; The preferable scope of centre distance L is 8～12mm.
Referring to Fig. 4; For with certain air-ducting ring being the air quantity noise curve figure that obtains after example experimentizes; New air-ducting ring is to make after adopting technological scheme provided by the invention, offers the aperture that is uniformly distributed with on the new tangible former air-ducting ring of air-ducting ring, and the diameter D of aperture 1.1 is 2mm; Adjacent pitch of holes L is at 8～12mm, all the other size constancies.
With respect to former air-ducting ring, new air-ducting ring can reduce the air-supply noise 2～8dB (A) under identical air quantity, the identical blast.
Claims (7)
1. an axial-flow windwheel comprises air-ducting ring (1), it is characterized in that air-ducting ring (1) is provided with aperture (1.1).
2. axial-flow windwheel according to claim 1 is characterized in that said aperture (1.1) is distributed on the air-ducting ring (1).
3. axial-flow windwheel according to claim 2 is characterized in that the diameter (D) of said aperture (1.1) is 1～5mm.
4. axial-flow windwheel according to claim 3 is characterized in that the diameter (D) of said aperture (1.1) is 2～3mm.
5. axial-flow windwheel according to claim 2 is characterized in that the centre distance (L) between the adjacent aperture (1.1) is 2～50mm.
6. axial-flow windwheel according to claim 5 is characterized in that the centre distance (L) between the adjacent aperture (1.1) is 8～12mm.
7. according to each described axial-flow windwheel of claim 1 to 6, it is characterized in that said axial-flow windwheel also comprises axial-flow leaf, air-ducting ring (1) is arranged on the outlet air end of axial-flow leaf.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104096419A CN102418715A (en) | 2011-12-09 | 2011-12-09 | Axial flow wind wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104096419A CN102418715A (en) | 2011-12-09 | 2011-12-09 | Axial flow wind wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102418715A true CN102418715A (en) | 2012-04-18 |
Family
ID=45943291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104096419A Pending CN102418715A (en) | 2011-12-09 | 2011-12-09 | Axial flow wind wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102418715A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767541A (en) * | 2012-07-04 | 2012-11-07 | 宁波方太厨具有限公司 | Noise reducing flow concentration ring and range hood employing same |
| CN104236203A (en) * | 2014-09-19 | 2014-12-24 | 合肥华凌股份有限公司 | Air cooling refrigerator and fan assembly |
| CN104296458A (en) * | 2014-09-19 | 2015-01-21 | 合肥华凌股份有限公司 | Refrigerator and air duct plate thereof |
| CN106321520A (en) * | 2016-10-20 | 2017-01-11 | 珠海格力电器股份有限公司 | Flow guiding ring structure, axial flow fan and air conditioner |
| CN108397835A (en) * | 2018-05-04 | 2018-08-14 | 广东美的制冷设备有限公司 | Air guide ring structure, air-conditioner outdoor unit and air conditioner |
| CN108488103A (en) * | 2018-06-26 | 2018-09-04 | 杭州老板电器股份有限公司 | Denoising device, wind turbine and kitchen ventilator |
| CN108397835B (en) * | 2018-05-04 | 2024-04-26 | 广东美的制冷设备有限公司 | Air guide ring structure, air conditioner outdoor unit and air conditioner |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62206296A (en) * | 1986-03-06 | 1987-09-10 | N J Akushibein Kk | Axial blower |
| CN2181583Y (en) * | 1993-11-19 | 1994-11-02 | 山西省定襄县暖风机厂 | Low noise axial flow fan for radiator of transformer |
| CN2254962Y (en) * | 1995-08-15 | 1997-05-28 | 江苏申海股份有限公司 | Axial-flow blower with high pressure, high efficiency, low noise and large flow-rate |
| JP2007240015A (en) * | 2006-03-06 | 2007-09-20 | Fukushima Industries Corp | Refrigerator |
| CN201391470Y (en) * | 2009-03-27 | 2010-01-27 | 余姚市兰山电机企业有限公司 | Axial flow fan |
| CN202056108U (en) * | 2011-03-02 | 2011-11-30 | 嵊州市龙马冲件有限公司 | Fan device with noise reduction structure |
-
2011
- 2011-12-09 CN CN2011104096419A patent/CN102418715A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62206296A (en) * | 1986-03-06 | 1987-09-10 | N J Akushibein Kk | Axial blower |
| CN2181583Y (en) * | 1993-11-19 | 1994-11-02 | 山西省定襄县暖风机厂 | Low noise axial flow fan for radiator of transformer |
| CN2254962Y (en) * | 1995-08-15 | 1997-05-28 | 江苏申海股份有限公司 | Axial-flow blower with high pressure, high efficiency, low noise and large flow-rate |
| JP2007240015A (en) * | 2006-03-06 | 2007-09-20 | Fukushima Industries Corp | Refrigerator |
| CN201391470Y (en) * | 2009-03-27 | 2010-01-27 | 余姚市兰山电机企业有限公司 | Axial flow fan |
| CN202056108U (en) * | 2011-03-02 | 2011-11-30 | 嵊州市龙马冲件有限公司 | Fan device with noise reduction structure |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767541A (en) * | 2012-07-04 | 2012-11-07 | 宁波方太厨具有限公司 | Noise reducing flow concentration ring and range hood employing same |
| CN102767541B (en) * | 2012-07-04 | 2015-10-28 | 宁波方太厨具有限公司 | A kind of noise reduction afflux circle and use the kitchen ventilator of this afflux circle |
| CN104236203A (en) * | 2014-09-19 | 2014-12-24 | 合肥华凌股份有限公司 | Air cooling refrigerator and fan assembly |
| CN104296458A (en) * | 2014-09-19 | 2015-01-21 | 合肥华凌股份有限公司 | Refrigerator and air duct plate thereof |
| CN106321520A (en) * | 2016-10-20 | 2017-01-11 | 珠海格力电器股份有限公司 | Flow guiding ring structure, axial flow fan and air conditioner |
| CN106321520B (en) * | 2016-10-20 | 2018-11-23 | 珠海格力电器股份有限公司 | Water conservancy diversion coil structures, axial flow blower and air conditioner |
| EP3530961A4 (en) * | 2016-10-20 | 2020-06-10 | Gree Electric Appliances, Inc. of Zhuhai | Flow guiding ring structure, axial flow fan and air-conditioner |
| CN108397835A (en) * | 2018-05-04 | 2018-08-14 | 广东美的制冷设备有限公司 | Air guide ring structure, air-conditioner outdoor unit and air conditioner |
| CN108397835B (en) * | 2018-05-04 | 2024-04-26 | 广东美的制冷设备有限公司 | Air guide ring structure, air conditioner outdoor unit and air conditioner |
| CN108488103A (en) * | 2018-06-26 | 2018-09-04 | 杭州老板电器股份有限公司 | Denoising device, wind turbine and kitchen ventilator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20131211 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20131211 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 Applicant after: Midea Group Co., Ltd. Address before: 528311, the beautiful headquarters building, 6 beautiful avenue, Beijiao Town, Shunde District, Guangdong, Foshan Applicant before: Meidi Electric Appliances Co., Ltd., Guangdong |
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120418 |