CN102865237B - Axial-flow blower - Google Patents
Axial-flow blower Download PDFInfo
- Publication number
- CN102865237B CN102865237B CN201210369201.XA CN201210369201A CN102865237B CN 102865237 B CN102865237 B CN 102865237B CN 201210369201 A CN201210369201 A CN 201210369201A CN 102865237 B CN102865237 B CN 102865237B
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- China
- Prior art keywords
- blade
- axial
- flow blower
- wind wheel
- rear edge
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Abstract
The invention provides a kind of axial-flow blower, it comprises motor and wind wheel, and described wind wheel is contained on the external rotor of motor, and described wind wheel is provided with blade, and the outer edge in the front of described each blade is equipped with baffle plate, and the rear edge of described each blade is zigzag fashion.Adopt that the axial-flow blower efficiency of this structure is higher and noise is less.
Description
Technical field:
The present invention relates to aeration technology field, is specifically a kind of axial-flow blower be used on ventilation equipment.
Background technique:
Axial-flow blower generally comprises wind wheel and motor, the middle part interference fit of wind wheel is press-fitted on the external rotor of motor, the external rotor of motor rotates and drives wind wheel to rotate, gas is agitated by the fan blade in wind wheel and is moved vertically, thus axial air-out, hurting sb.'s feelings when rotating to prevent wind wheel, being generally also provided with guard and enclose wind wheel, prevent people from going to contact the fan blade on wind wheel.
Leaf blade on axial-flow blower of the prior art is generally adopt the uniform iron plate of thickness to make, and is generally level and smooth straight line or curvilinear structures.Adopt this structure, when wind wheel rotates, wind easily spills from the outward edge of blade, drain to side, thus cause the flow of the wind of axial-flow blower less, efficiency is not high, and be streamlined due to the front edge of blade, rear edge and outward edge, therefore, when wind flows out from the rear edge of blade, the contact length of wind and blade is shorter, and noise is larger.
Summary of the invention:
The object of the invention is, overcome existing technological deficiency, the axial-flow blower that a kind of efficiency is higher and noise is less is provided.
Technological scheme provided by the invention is: the invention provides a kind of axial-flow blower, it comprises motor and wind wheel, described wind wheel is contained on the external rotor of motor, described wind wheel is provided with blade, the outer edge in the front of described each blade is equipped with baffle plate, and the rear edge of described each blade is zigzag fashion.
The rear edge of described each blade is zigzag fashion and refers to that the rear edge of described each blade is equipped with several continuous print triangular hills.
Adopt said structure, the present invention has the following advantages:
Axial-flow blower of the present invention is provided with baffle plate in the outer edge in the front (i.e. the one side of the air-out of blade) of each blade of wind wheel, wind can be stoped to leak from the outer edge of blade, prevent side from leaking out, thus increase the flow of the wind in axial-flow blower front, improve the efficiency of axial-flow blower, and the rear edge of blade is designed to profile of tooth, upon rotation of the blade, wind flows out from the rear edge of blade, can increase effective contact length of blade and wind, thus can reduce noise.
As improvement, the thickness of the intermediate portion of described each blade all than the front edge of this blade and antemarginal thickness large.Adopt this structure, the sectional shape of blade is the sectional shape of similar wing, and be conducive to the air pressure on the forward and backward two sides increasing blade, thus significantly can increase the flow of outlet air surface, efficiency is higher.
As preferably, described baffle plate and blade one-body molded.Adopt this structure, fairly simple, process more convenient.
Accompanying drawing illustrates:
Accompanying drawing 1 is the structural representation of axial-flow blower of the present invention;
Accompanying drawing 2 is the structural representation of the fan blade in axial-flow blower;
Accompanying drawing 3 is that A-A in Fig. 2 is to analysing and observe enlarged diagram;
As shown in the figure: 1, motor, 2, wind wheel, 3, guard, 4, blade, 4.1, baffle plate, 4.2, rear edge, 4.3, outward edge, 4.4, front edge.
Embodiment:
Below in conjunction with the drawings and specific embodiments, the present invention is elaborated:
As shown in Figure 1, Figure 2, Figure 3 shows: the invention provides a kind of axial-flow blower, it comprises motor 1, wind wheel 2 and guard 3, described wind wheel 2 is contained on the external rotor of motor 1, in the present embodiment, the centre of wind wheel 2 is press-fitted to by interference fit on the external rotor of motor 1, wind wheel 2 rotates along with the rotation of external rotor, described guard 3 is contained on the end cap of motor 1, described wind wheel 2 is provided with blade 4, outward edge 4.3 place in the front of described each blade 4 is equipped with baffle plate 4.1, and the rear edge 4.2 of described each blade 4 is zigzag fashion.
The rear edge 4.2 of described each blade 4 is zigzag fashion and refers to that the rear edge 4.2 of described each blade 4 is equipped with several continuous print triangular hills.
Above-mentioned zigzag fashion is usually described pointed tooth, and described zigzag fashion also has one to be flat tooth, and namely the rear edge 4.2 of each blade 4 is equipped with the trapezoidal projection of several continuous print.
Axial-flow blower of the present invention is provided with baffle plate 4.1 in the outer edge in the front (i.e. the one side of the air-out of blade) of each blade 4 of wind wheel 2, wind can be stoped to leak from the outward edge 4.3 of blade 4, prevent side from leaking out, thus increase the flow of the wind in axial-flow blower front, improve the efficiency of axial-flow blower, and the rear edge 4.2 of blade 4 is designed to profile of tooth, when blade 4 rotates, wind flows out from the rear edge of blade 4, effective contact length of blade 4 and wind can be increased, thus can noise be reduced.
As improvement, the thickness of the intermediate portion of described each blade 4 all than the front edge 4.4 of this blade 4 and the thickness of rear edge 4.2 large.Adopt this structure, the sectional shape of blade 4 is the sectional shape of similar wing, and be conducive to the air pressure on the forward and backward two sides increasing blade 4, thus significantly can increase the flow of outlet air surface, efficiency is higher.
Front and back due to blade 4 all needs to be designed to streamlined.Therefore, the structure adopted in the present embodiment is the cross section in the front of blade 4 is arc, the cross section at blade 4 back side is also arc, the diameter of the arc in the cross section in blade 4 front is larger than the diameter of the arc in the cross section at blade 4 back side, adopt this structural design, can make the thickness of the intermediate portion of blade 4 all than the front edge 4.4 of this blade 4 and the thickness of rear edge 4.2 large.
As preferably, described baffle plate 4.1 is one-body molded with blade 4.Baffle plate 4.1 described in the present embodiment is stretched out by the outward edge of blade 4 and front bending towards blade 4 is formed.Adopt this structure, fairly simple, process more convenient.
Claims (3)
1. an axial-flow blower, it comprises motor (1) and wind wheel (2), described wind wheel (2) is contained on the external rotor of motor (1), described wind wheel (2) is provided with blade (4), it is characterized in that: outward edge (4.3) place in the front of described each blade (4) is equipped with baffle plate (4.1), described baffle plate (4.1) is covered with the outward edge (4.3) of each blade (4), the rear edge (4.2) of described each blade (4) is zigzag fashion, the cross section in the front of blade (4) is arc, the cross section at blade (4) back side is also arc, the diameter of the arc in the cross section in blade (4) front is larger than the diameter of the arc in the cross section at blade (4) back side.
2. axial-flow blower according to claim 1, is characterized in that: the rear edge (4.2) of described each blade (4) is zigzag fashion and refers to that the rear edge (4.2) of described each blade (4) is equipped with several continuous print triangular hills.
3. axial-flow blower according to claim 1, is characterized in that: described baffle plate (4.1) is one-body molded with blade (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210369201.XA CN102865237B (en) | 2012-09-27 | 2012-09-27 | Axial-flow blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210369201.XA CN102865237B (en) | 2012-09-27 | 2012-09-27 | Axial-flow blower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102865237A CN102865237A (en) | 2013-01-09 |
| CN102865237B true CN102865237B (en) | 2016-01-27 |
Family
ID=47444303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210369201.XA Expired - Fee Related CN102865237B (en) | 2012-09-27 | 2012-09-27 | Axial-flow blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102865237B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016006217A1 (en) * | 2014-07-08 | 2016-01-14 | ダイキン工業株式会社 | Propeller fan and blower unit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4640668A (en) * | 1982-08-02 | 1987-02-03 | Yang Tai Her | Ceiling fan with adjustable blowing scope thru a speed-servo and with driving speed control means |
| CN200940604Y (en) * | 2006-08-07 | 2007-08-29 | 海信集团有限公司 | Axial flow fan of air conditioner |
| CN201241864Y (en) * | 2008-08-15 | 2009-05-20 | 新昌县科贸实业有限公司 | Wind impeller for fan |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5751196U (en) * | 1980-09-09 | 1982-03-24 | ||
| JPS61107999U (en) * | 1984-12-20 | 1986-07-09 | ||
| JP2000314394A (en) * | 1999-04-30 | 2000-11-14 | Denso Corp | Blower |
| JP3598900B2 (en) * | 1999-09-03 | 2004-12-08 | ダイキン工業株式会社 | Impeller for blower |
| JP2003056493A (en) * | 2001-08-17 | 2003-02-26 | Mitsubishi Heavy Ind Ltd | Propeller fan |
-
2012
- 2012-09-27 CN CN201210369201.XA patent/CN102865237B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4640668A (en) * | 1982-08-02 | 1987-02-03 | Yang Tai Her | Ceiling fan with adjustable blowing scope thru a speed-servo and with driving speed control means |
| CN200940604Y (en) * | 2006-08-07 | 2007-08-29 | 海信集团有限公司 | Axial flow fan of air conditioner |
| CN201241864Y (en) * | 2008-08-15 | 2009-05-20 | 新昌县科贸实业有限公司 | Wind impeller for fan |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102865237A (en) | 2013-01-09 |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160127 Termination date: 20170927 |