CN201475045U - Cooling fan blade - Google Patents

Cooling fan blade Download PDF

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Publication number
CN201475045U
CN201475045U CN2009202042906U CN200920204290U CN201475045U CN 201475045 U CN201475045 U CN 201475045U CN 2009202042906 U CN2009202042906 U CN 2009202042906U CN 200920204290 U CN200920204290 U CN 200920204290U CN 201475045 U CN201475045 U CN 201475045U
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CN
China
Prior art keywords
line
wheel hub
point
blade
flabellum
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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
Application number
CN2009202042906U
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Chinese (zh)
Inventor
杨伟平
Original Assignee
杨伟平
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 杨伟平 filed Critical 杨伟平
Priority to CN2009202042906U priority Critical patent/CN201475045U/en
Application granted granted Critical
Publication of CN201475045U publication Critical patent/CN201475045U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model is applicable to the technical field of fans and provides a cooling fan blade. The cooling fan blade comprises a hub and a plurality of blades outwards extending from the periphery of the hub along the radial direction of the hub, wherein all the blades bend along the same direction, the surface of each blade takes a distorted cambered surface and a contact line between an upper surface of the blade and the hub is a first arc line; and the included angle between a connecting line of two end points of the first arc line and a projection line of the connecting line on the back of the hub ranges between 40 degrees to 60 degrees; a periphery line of the upper surface of the blade is a second arc line; and the included angle between a connecting line of two end points of the second arc line and a projection line of the connecting line on the back of the hub ranges between 20 degrees to 30 degrees. Compared with the former blades, the torsion resistance of the blades of the cooling fan blade is increased so that the cooling fan blade can also generate large wind quantity at low rotating speed. Therefore, the noise is reduced and no big power consumption is caused.

Description

A kind of flabellum of radiation fan
Technical field
The utility model belongs to the technical field of fan, relates in particular to a kind of flabellum of radiation fan.
Background technique
Along with the development of technology, radiation fan has become necessary tool in people's daily life, and radiation fan can be used to people to dispel the heat, and also can be used to heat radiation of electrical apparatus or the like.
Radiation fan blows to human body or electrical equipment by the air-flow that the flabellum rotation produces, thereby reach the purpose of heat radiation, because the air quantity size that flabellum produced of radiation fan depends on the rotating speed of the flabellum of radiation fan, in order to improve the radiating efficiency of radiation fan, need the rotating speed of the flabellum of raising radiation fan to produce big air quantity, but the noise that can cause radiation fan to produce significantly increases like this, and makes the user not feel well, and power consumption is big.
The model utility content
The purpose of this utility model is to provide a kind of flabellum of radiation fan, and the flabellum that is intended to solve existing radiation fan improves rotating speed in order to produce big air quantity and can have noise and the big problem of power consumption.
The utility model is to realize like this, a kind of flabellum of radiation fan, it comprise a wheel hub and some around the wheel hub along its blade that extends radially outwardly out, described blade is all around same direction bending, the surface of each blade is the cambered surface of a distortion, the Line of contact of described blade upper surface and wheel hub is first camber line, the line of the first camber line two-end-point and the angular range of this line between the projection line at the wheel hub back side are 40 °-60 °, described blade upper surface border line is second camber line, and the line of the second camber line two-end-point and the angular range of this line between the projection line at the wheel hub back side are 20 °-30 °;
In the said structure, the line of the described first camber line two-end-point and the angle of this line between the projection line at the wheel hub back side are 46.5 °;
In the said structure, the line of the described second camber line two-end-point and the angle of this line between the projection line at the wheel hub back side are 21.5 °;
In the said structure, the line of the described first camber line two-end-point is 11.3mm in the length of the projection line at the wheel hub back side, and the distance vertically of the first camber line two-end-point is 12mm;
In the said structure, the line of the described second camber line two-end-point is 36mm in the length of the projection line at the wheel hub back side, and the distance vertically of the second camber line two-end-point is 14.5mm;
In the said structure, described wheel hub comprises that a plectane, an annular wall of extending vertically from the plectane periphery reach an inner annular wall that extends vertically from the plectane inboard, protruding vertically in the middle of the described plectane, form a connecting part, the cross-section area of described connecting part reduces vertically gradually, forming a taper configurations, caves in vertically and the shrinkage pool of a circle in the surface of described connecting part, and the rotating shaft of air feed fan wears.
In the utility model, the blade of the flabellum of this radiation fan was compared with former blade, and its torsion increases, and makes the flabellum of radiation fan also can produce big air quantity under the little situation of rotating speed, so noise reduces, and also can not produce big power consumption.
Description of drawings
Fig. 1 is the main TV structure figure of the flabellum of the radiation fan that provides of the utility model embodiment;
Fig. 2 is the worm's eye view of Fig. 1 of providing of the utility model embodiment;
Fig. 3 is the right pseudosection of Fig. 1 of providing of the utility model embodiment.
Embodiment
In order to make the purpose of this utility model, technological scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Fig. 1 shows the main TV structure of the flabellum of the radiation fan that the utility model embodiment provides, and for convenience of explanation, only shows the part relevant with the utility model embodiment.
The flabellum of radiation fan comprise a wheel hub 100 and some around the wheel hub 100 along its blade that extends radially outwardly out 200, blade 200 be evenly distributed in wheel hub 100 around, rock thereby be unlikely to produce when making the flabellum rotation of this radiation fan, Fig. 2 shows the worm's eye view of Fig. 1 that the utility model embodiment provides, blade 200 is all around same direction bending, the surface of each blade 200 is the cambered surface of a distortion, the Line of contact of blade 200 upper surfaces and wheel hub 100 is first camber line 201, the line of first camber line, 201 two-end-points and the angular range of this line between the projection line at wheel hub 100 back sides are 40 °-60 °, as the utility model one embodiment, the line and the angle of this line between the projection line at wheel hub 100 back sides of first camber line, 201 two-end-points are 46.5 °, the line of first camber line, 201 two-end-points is 11.3mm in the length of the projection line at wheel hub 100 back sides, the distance vertically of first camber line, 201 two-end-points is 12mm, blade 200 upper surface border lines are second camber line 202, the line of second camber line, 202 two-end-points and the angular range of this line between the projection line at wheel hub 100 back sides are 20 °-30 °, as the utility model one embodiment, the line and the angle of this line between the projection line at wheel hub 100 back sides of second camber line, 202 two-end-points are 21.5 °, the line of second camber line, 202 two-end-points is 36mm in the length of the projection line at wheel hub 100 back sides, the distance vertically of second camber line, 202 two-end-points is 14.5mm, first camber line 201 is that the circular arc of 31.6mm is formed by radius, second camber line 202 is that 52mm and radius are that the circular arc of 38mm is formed by radius respectively, blade 200 lower surface border lines are the 3rd camber line 203, the 3rd camber line 203 is made up of for the 53mm circular arc radius, the Line of contact of blade 200 lower surfaces and wheel hub 100 is the 4th camber line 204, the 4th camber line 204 is that the circular arc of 80mm is formed by radius, the blade 200 upper surfaces first lateral margin line is the 5th camber line 205, the 5th camber line 205 is that the circular arc of 80mm is formed by radius, the blade 200 upper surfaces second lateral margin line is the 6th camber line 206, the 6th camber line 206 is that the circular arc of 109mm is formed by radius, among Fig. 1, the two-end-point of the 6th camber line 206 is respectively A point and B point, the centre point of wheel hub 100 is the C point, and the angle of straight line AC and straight line BC is 14 °.
Fig. 3 shows the right pseudosection of Fig. 1 that the utility model embodiment provides, for convenience of explanation, only shows the part relevant with the utility model embodiment.
Wheel hub 100 comprises that a plectane 101, an annular wall 102 of extending vertically from plectane 101 peripheries reach an inner annular wall 104 that extends vertically from plectane 101 inboards, protruding vertically in the middle of the plectane 101, form a connecting part 103, the cross-section area of connecting part 103 reduces vertically gradually, form a taper configurations, cave in vertically and the shrinkage pool of a circle in the surface of connecting part 103, the rotating shaft 300 of air feed fan wears, and makes the flabellum of radiation fan produce air-flow around these rotating shaft 300 rotations.
In the utility model embodiment, the blade of the flabellum of this radiation fan was compared with former blade, and its torsion increases, and makes the flabellum of radiation fan also can produce big air quantity under the little situation of rotating speed, so noise reduces, and also can not produce big power consumption.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.

Claims (6)

1. the flabellum of a radiation fan, it comprise a wheel hub and some around the wheel hub along its blade that extends radially outwardly out, described blade is all around same direction bending, the surface of each blade is the cambered surface of a distortion, it is characterized in that, the Line of contact of described blade upper surface and wheel hub is first camber line, the line of the first camber line two-end-point and the angular range of this line between the projection line at the wheel hub back side are 40 °-60 °, described blade upper surface border line is second camber line, and the line of the second camber line two-end-point and the angular range of this line between the projection line at the wheel hub back side are 20 °-30 °.
2. the flabellum of radiation fan as claimed in claim 1 is characterized in that, the line of the described first camber line two-end-point and the angle of this line between the projection line at the wheel hub back side are 46.5 °.
3. the flabellum of radiation fan as claimed in claim 1 or 2 is characterized in that, the line of the described second camber line two-end-point and the angle of this line between the projection line at the wheel hub back side are 21.5 °.
4. the flabellum of radiation fan as claimed in claim 1 or 2 is characterized in that, the line of the described first camber line two-end-point is 11.3mm in the length of the projection line at the wheel hub back side, and the distance vertically of the first camber line two-end-point is 12mm.
5. the flabellum of radiation fan as claimed in claim 3 is characterized in that, the line of the described second camber line two-end-point is at the length 36mm of the projection line at the wheel hub back side, and the distance vertically of the second camber line two-end-point is 14.5mm.
6. the flabellum of radiation fan as claimed in claim 1, it is characterized in that, described wheel hub comprises that a plectane, an annular wall of extending vertically from the plectane periphery reach an inner annular wall that extends vertically from the plectane inboard, protruding vertically in the middle of the described plectane, form a connecting part, the cross-section area of described connecting part reduces vertically gradually, forms a taper configurations, cave in vertically and the shrinkage pool of a circle in the surface of described connecting part, the rotating shaft of air feed fan wears.
CN2009202042906U 2009-08-26 2009-08-26 Cooling fan blade Expired - Fee Related CN201475045U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009202042906U CN201475045U (en) 2009-08-26 2009-08-26 Cooling fan blade

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009202042906U CN201475045U (en) 2009-08-26 2009-08-26 Cooling fan blade

Publications (1)

Publication Number Publication Date
CN201475045U true CN201475045U (en) 2010-05-19

Family

ID=42411292

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009202042906U Expired - Fee Related CN201475045U (en) 2009-08-26 2009-08-26 Cooling fan blade

Country Status (1)

Country Link
CN (1) CN201475045U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105697416A (en) * 2016-03-24 2016-06-22 北京小米移动软件有限公司 Fan blades and fan device
WO2021244379A1 (en) * 2020-06-02 2021-12-09 李敏 Integrated fan blade, fan, and fan lamp

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105697416A (en) * 2016-03-24 2016-06-22 北京小米移动软件有限公司 Fan blades and fan device
WO2021244379A1 (en) * 2020-06-02 2021-12-09 李敏 Integrated fan blade, fan, and fan lamp

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100519

Termination date: 20140826

EXPY Termination of patent right or utility model