CN201786743U - Fan blade - Google Patents
Fan blade Download PDFInfo
- Publication number
- CN201786743U CN201786743U CN2010205320249U CN201020532024U CN201786743U CN 201786743 U CN201786743 U CN 201786743U CN 2010205320249 U CN2010205320249 U CN 2010205320249U CN 201020532024 U CN201020532024 U CN 201020532024U CN 201786743 U CN201786743 U CN 201786743U
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- Prior art keywords
- fan
- blade
- wheel hub
- fan blade
- radius
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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.)
- Expired - Fee Related
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- 230000007935 neutral effect Effects 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005728 strengthening Methods 0.000 abstract 4
- 230000002153 concerted effect Effects 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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Abstract
The utility model relates to a fan blade, including cylindrical wheel hub (1) and narrow small-size blade (2) more than a slice, its characterized in that the tangential wind limit root of pressure surface (3) and/or suction surface (4) of blade (2) is provided with at least one and wheel hub (1) disjunctor first strengthening rib (5), and the root intermediate position of suction surface (4) is provided with at least one and wheel hub (1) disjunctor second strengthening rib (6). The utility model discloses owing to adopt the root on the cut wind limit of blade to set up at least one with wheel hub disjunctor strengthening rib, the root intermediate position of blade suction surface sets up at least one with wheel hub disjunctor strengthening rib, and cut the structure that wind limit outer fringe leans forward along the direction of rotation, not only make blade and wheel hub's joint strength improve greatly, guaranteed the quality of use and the life of fan (especially high rotational speed fan) when the improvement amount of wind effectively, and obviously improved the flow characteristic of air current, noise reduction has been reached, the effect of fan efficiency is improved.
Description
Technical field
The utility model relates to a kind of fan fan blade, particularly a kind of fan fan blade of narrow type blade.
Background technique
At present, commercially available industry or family expenses fan normally single-stage not with the fan of air duct structure, the characteristic of fan blade has determined the performance of whole fan basically, wherein the leaf of blade is the key factor of decision fan blade performance, and the structure that blade is connected with wheel hub is the decision fan blade key factor in working life; The blade of our seen most fan is wide and big leaf on market, be the pressure side and the more roomy blade profile of suction surface of blade, this leaf fan blade noise when operation is less relatively, but when running up, blade with respect to narrow type, roomy fan blade need bear bigger pressure and centrifugal making a concerted effort, the soundness of fan blade requires very high, because the restriction of conditions such as design and processing, the fan product of existing roomy fan blade is seldom considered the structure of blade and wheel hub joint on the market, thereby the local fracture easily that causes fan blade to be connected with wheel hub, the fan blade high-speed impact guard of fracture, fragmentation throws away and causes the fan other parts to be damaged easily, even jeopardizes personal safety.
Summary of the invention
The purpose of this utility model is to consider the problems referred to above and provides a kind of blade and wheel hub of making to be connected firmly, and improves fan (particularly high rotating speed fan) air quantity thereby reach, and prolongs the fan fan fan blade in working life.
The technical solution of the utility model is: a kind of fan fan blade, comprise the above narrow type blade of cylindrical bosses and a slice, the root that it is characterized in that the wind cutting limit of the pressure side of described blade and/or suction surface be provided with at least one with first stiffening rib of wheel hub disjunctor, the root neutral position of suction surface be provided with at least one with second stiffening rib of wheel hub disjunctor.
Preferably, with the fan blade center is the center of circle, the circle radius Rb at the place, outer rim summit of first stiffening rib deducts semidiameter L1 that hub radius Ra draws and accounts for fan blade radius R d and deduct 1%～50% of semidiameter L2 that hub radius Ra draws, that is: L1=Rb-Ra, L2=Rd-Ra, (L1/ L2) * 100 %=1%～50%.
Preferably, with the fan blade center is the center of circle, the circle radius Rc at place, the second stiffening rib outer rim summit deducts semidiameter L3 that hub radius Ra draws and accounts for fan blade radius R d and deduct 1%～50% of semidiameter L2 that hub radius Ra draws, that is: L3=Rd-Ra, L2=Rd-Ra, (L3/ L2) * 100 %=1%～50%.
The overbending direction of described second stiffening rib is opposite with the sense of rotation of blade.
The wind cutting limit outer rim of described blade leans forward along sense of rotation.
Described fan blade is made by plastics or metallic material.
The utility model since adopt root on the wind cutting limit of blade be provided with at least one with the stiffening rib of wheel hub disjunctor, the root neutral position of blade suction surface be provided with at least one with the stiffening rib of wheel hub disjunctor, and the structure that wind cutting limit outer rim leans forward along sense of rotation, the join strength of blade and wheel hub is improved greatly, guaranteed fan (particularly high rotating speed fan) service property (quality) and working life when improving air quantity effectively, and obviously improved the flow characteristic of air-flow, reached the effect that reduces noise, improves fan efficiency.
Description of drawings
Fig. 1 is the front schematic perspective view of the utility model fan fan blade;
Fig. 2 is the back schematic perspective view of the utility model fan fan blade;
Fig. 3 is the positive sense of rotation schematic representation of the utility model fan fan blade;
Fig. 4 is the rear view of Fig. 3.
Embodiment
Following structure drawings and Examples are described further the utility model fan fan blade.
Embodiment 1:
Shown in Fig. 1,2,3,4, the utility model fan fan blade, comprise cylindrical bosses 1 and three narrow type blades 2, the root on the wind cutting limit of the suction surface 4 of described blade 2 is provided with first stiffening rib 5 with wheel hub 1 disjunctor, and the root neutral position of suction surface 4 is provided with second stiffening rib 6 with wheel hub 1 disjunctor.Described fan blade is made by plastics or metallic material.
In the present embodiment, preferably, with the fan blade center is the center of circle, the circle radius Rb at the place, outer rim summit of first stiffening rib 5 deducts semidiameter L1 that hub radius Ra draws and accounts for fan blade radius R d and deduct 1%～50% of semidiameter L2 that hub radius Ra draws, that is: L1=Rb-Ra, L2=Rd-Ra, (L1/ L2) * 100 %=1%～50%.With the fan blade center is the center of circle, the circle radius Rc at place, second stiffening rib (6) outer rim summit deducts semidiameter L3 that hub radius Ra draws and accounts for fan blade radius R d and deduct 1%～50% of semidiameter L2 that hub radius Ra draws, that is: L3=Rd-Ra, L2=Rd-Ra, (L3/ L2) * 100 %=1%～50%.
The overbending direction of described second stiffening rib 6 is opposite with the sense of rotation of blade 2, and in the fan rotary course, the combination of this stiffening rib is equivalent to a miniature centrifugal impeller, helps the heat radiation of motor, thereby helps the prolongation of fan life.
The wind cutting limit outer rim 7 of described blade 2 leans forward along sense of rotation, helps improving the flow characteristic of air-flow, reaches the reduction noise, improves the effect of fan efficiency.
Embodiment 2:
The present embodiment difference from Example 1 is: the root on the wind cutting limit of described blade pressure surface 3 is provided with first stiffening rib 5 with wheel hub 1 disjunctor.Other structure is identical with embodiment 1.
Claims (6)
1. fan fan blade, comprise the above narrow type blade (2) of cylindrical bosses (1) and a slice, the wind cutting limit root that it is characterized in that the pressure side (3) of described blade (2) and/or suction surface (4) be provided with at least one with first stiffening rib (5) of wheel hub (1) disjunctor, the root neutral position of suction surface (4) be provided with at least one with second stiffening rib (6) of wheel hub (1) disjunctor.
2. fan fan blade according to claim 1, it is characterized in that with the fan blade center be the center of circle, the circle radius Rb at the place, outer rim summit of first stiffening rib (5) deducts semidiameter L1 that hub radius Ra draws and accounts for fan blade radius R d and deduct 1%～50% of semidiameter L2 that hub radius Ra draws, that is: L1=Rb-Ra, L2=Rd-Ra, (L1/ L2) * 100 %=1%～50%.
3. fan fan blade according to claim 1, it is characterized in that with the fan blade center be the center of circle, the circle radius Rc at place, second stiffening rib (6) outer rim summit deducts semidiameter L3 that hub radius Ra draws and accounts for fan blade radius R d and deduct 1%～50% of semidiameter L2 that hub radius Ra draws, that is: L3=Rd-Ra, L2=Rd-Ra, (L3/ L2) * 100 %=1%～50%.
4. according to claim 1 or 3 described fan fan blades, it is characterized in that the overbending direction of described second stiffening rib (6) is opposite with the sense of rotation of blade (2).
5. fan fan blade according to claim 1 is characterized in that the wind cutting limit outer rim (7) of described blade (2) leans forward along sense of rotation.
6. fan fan blade according to claim 1 is characterized in that the described fan blade of described fan blade made by plastics or metallic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205320249U CN201786743U (en) | 2010-09-17 | 2010-09-17 | Fan blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205320249U CN201786743U (en) | 2010-09-17 | 2010-09-17 | Fan blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201786743U true CN201786743U (en) | 2011-04-06 |
Family
ID=43818708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205320249U Expired - Fee Related CN201786743U (en) | 2010-09-17 | 2010-09-17 | Fan blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201786743U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104373383A (en) * | 2014-11-28 | 2015-02-25 | 德清振达电气有限公司 | Efficient blade of axial fan |
| CN107269584A (en) * | 2017-07-26 | 2017-10-20 | 奥克斯空调股份有限公司 | The enhanced axial-flow leaf of structure |
| CN107956716A (en) * | 2017-11-09 | 2018-04-24 | 重庆馨艺科技有限公司 | A kind of electric fan flabellum |
| CN108468655A (en) * | 2017-02-23 | 2018-08-31 | 绍兴上虞中隧风机有限公司 | A kind of underground fan main fan wheel hub |
| CN109469644A (en) * | 2018-12-29 | 2019-03-15 | 宁波朗迪叶轮机械有限公司 | Axial-flow leaf |
| CN111412183A (en) * | 2020-04-24 | 2020-07-14 | 上海应达风机股份有限公司 | Fan blade and machining and manufacturing process thereof |
-
2010
- 2010-09-17 CN CN2010205320249U patent/CN201786743U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104373383A (en) * | 2014-11-28 | 2015-02-25 | 德清振达电气有限公司 | Efficient blade of axial fan |
| CN108468655A (en) * | 2017-02-23 | 2018-08-31 | 绍兴上虞中隧风机有限公司 | A kind of underground fan main fan wheel hub |
| CN107269584A (en) * | 2017-07-26 | 2017-10-20 | 奥克斯空调股份有限公司 | The enhanced axial-flow leaf of structure |
| CN107956716A (en) * | 2017-11-09 | 2018-04-24 | 重庆馨艺科技有限公司 | A kind of electric fan flabellum |
| CN109469644A (en) * | 2018-12-29 | 2019-03-15 | 宁波朗迪叶轮机械有限公司 | Axial-flow leaf |
| CN109469644B (en) * | 2018-12-29 | 2020-07-31 | 宁波朗迪叶轮机械有限公司 | Axial flow fan blade |
| CN111412183A (en) * | 2020-04-24 | 2020-07-14 | 上海应达风机股份有限公司 | Fan blade and machining and manufacturing process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: MIDEA GROUP CO., LTD. Free format text: FORMER NAME: MEIDI GROUP CO. LTD. |
|
| CP03 | Change of name, title or address |
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 beautiful road, Beijiao Town, Shunde District, Guangdong, Foshan Patentee before: Midea Group |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: GD MIDEA ENVIRONMENT APPLIANCES MFG Co.,Ltd. Assignor: MIDEA GROUP Co.,Ltd. Contract record no.: 2013440000251 Denomination of utility model: Fan blade Granted publication date: 20110406 License type: Exclusive License Record date: 20130523 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20150917 |
|
| EXPY | Termination of patent right or utility model |