CN201241860Y - Combined minitype axial flow fan - Google Patents
Combined minitype axial flow fan Download PDFInfo
- Publication number
- CN201241860Y CN201241860Y CNU2007203094877U CN200720309487U CN201241860Y CN 201241860 Y CN201241860 Y CN 201241860Y CN U2007203094877 U CNU2007203094877 U CN U2007203094877U CN 200720309487 U CN200720309487 U CN 200720309487U CN 201241860 Y CN201241860 Y CN 201241860Y
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- Prior art keywords
- wheel hub
- fan
- combined
- fan blade
- axial flow
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Abstract
The utility model provides a combined micro axial flow fan, which is formed by a wheel hub which is combined after separately manufacturing to shape, and two or more fan blades, wherein the wheel hub can be formed into a hollow tubular shape, and a calking groove is arranged on the outer lateral wall. A wedge block is coupled on the inner edge of each fan blade, and the fan blades are led to be connected with the calking groove of the wheel hub through the wedge block, and the combined micro axial flow fan is formed, and two or more fan blades can be combined into a non-gap structure to reach the purposes of muting, forcing the heat radiation of convection in high air quantity and lowering production cost. The combined micro axial flow fan is particularly suitable for electrons to radiate.
Description
The application is on December 19th, 2007 for the applying date, and application number is 200720311044.1, and name is called the dividing an application of utility application of " combined micro axial fan ".
Technical field
The relevant a kind of combined micro axial fan of the utility model refers in particular to the minitype axial flow fan structure improvement design that is applied in associated electrical product forced air convection such as computer.
Background technique
Known radiating module is mainly used in electronics, photovoltaic field, the used heat that is produced when getting rid of the electronic product running.Its pattern mostly is passive radiating subassembly and active heat removal assembly, and the former is the radiating fin of copper or aluminum, and the latter is most economical minitype axial flow fan often, makes the forced convection of electronic product ambient air, reduces the temperature of environment of operation.And known minitype axial flow fan structure comprises that integrated wheel hub 10 reaches two or more blades 20 (as shown in figure 10) on every side, by 10 rotations of motor driven wheel hub, even blade 20 produces blast, reaches the forced heat radiation purpose.Because parameters such as the three-dimensional curvature of fan blade, angle, number, radius all can influence numerical value such as blast, pressure amount, noise, its optimal design scheme is being faced (front) direction formation voidlessness structure for making several pieces blades, and promptly the leading edge blanking of a blade is in trailing edge the place ahead of adjacent blades.But the fan design of this kind structure will can't be implemented because of the bottleneck of Tool and Die Technology because the part structure of covering, behind ejection formation, with take place can not the demoulding gob-struck.Therefore, known axial flow fan structure, each blade all keeps one section space d ' (as shown in figure 10), allow the fan of ejection formation be able to the demoulding, and this kind has the structure of space d ', wind is cut the one of the main reasons that noise produces just, and causes the blast deficiency easily, and can't satisfy the demand in the heat radiation fully.
The model utility content
In view of this, main purpose of the present utility model provides a kind of noise and promote the combined micro axial fan of blast, air quantity can reduce fan running the time.
For reaching above-mentioned purpose, the technical solution of the utility model is achieved in that a kind of combined micro axial fan, comprising:
Wheel hub is provided with the rotating shaft connecting part in central authorities, and outer side wall is provided with the caulking groove that combines with fan blade on every side; And
Two or more fan blade, the inner edge of each fan blade are coupled with the voussoir that the caulking groove with wheel hub is complementary; With the caulking groove combination that the voussoir of fan blade inserts wheel hub, make two or more fan blade be combined in wheel hub radially on every side.
Combined micro axial fan of the present utility model makes the moulding respectively of its fan blade and wheel hub, relends by package assembly and is combined into complete axial fan mutually.This kind structural design can overcome the bottleneck of mould development, two or more fan blade can be combined in around the wheel hub more closely, even can make the leading edge blanking of a fan blade on the trailing edge of adjacent another fan blade, (be vertical parallax), form the positive angle of fan and be viewed as void-free structure, noise when turning round to reduce, and acquisition promotes the effect of blast, air quantity.
Description of drawings
Following conjunction with figs. describes feature of the present utility model and advantage in detail:
Fig. 1 is the exploded perspective view of the utility model combined micro axial fan;
Fig. 2 is the front perspective view of the utility model combined micro axial fan;
Fig. 3 is the sectional view of recessed catching groove of the utility model and convex fastener assembled state;
Fig. 4 is the half section figure of the utility model combined micro axial fan;
Fig. 5 is the plan view of the utility model combined micro axial fan;
Fig. 6 is another embodiment's of the utility model a exploded perspective view;
Fig. 7 is another embodiment's of the utility model a front perspective view;
Fig. 8 is the sectional view of another embodiment's wheel hub structure of the utility model;
Fig. 9 is another embodiment's of the utility model half section figure;
Figure 10 is the front schematic view of known minitype axial flow fan.
Embodiment
As shown in Figures 1 and 2, the design of the utility model combined micro axial fan, its preferred embodiment is formed by distinguishing capable again wheel hub 1 and two or more fan blade 2 that makes up of ejection formation, and providing to use becomes one of active heat removal assembly of electronic correlation product, wherein:
Two or more fan blade 2, as shown in Figures 1 and 2, be difference ejection formation and the identical sheet shape assembly of structure shape, include leading edge 21, trailing edge 22, outer rim 23 and inner edge 24, its three-dimension curved surface and geometrical shape are not necessarily limited to specific, can be modified into best structure shape according to airmechanics.And the inner edge 24 that it is characterized by each fan blade 2 is coupled with voussoir 25, voussoir 25 can be the arc shape with wheel hub 1 circumference coupling, front end at voussoir 25 is provided with lug 251, make lug 251 insert the caulking groove 13 of wheel hub 1, and voussoir 25 inner faces are provided with second locating tooth 252 of coupling first locating tooth 15, and the profile of tooth of this second locating tooth 252 can be V-arrangement shape or other shape; And voussoir 25 1 sides are provided with recessed catching groove 253, and another side is provided with convex fastener 254 (as Fig. 1 and shown in Figure 3), make the voussoir 25 of two or more fan blade 2 can be fastened into the ring-type of surrounding wheel hub 1 mutually whereby; And outside, voussoir 25 rear ends is provided with groove 255, be fastened into the ring-type of encirclement wheel hub 1 when two or more voussoirs 25 after, promptly form a loop groove, can be again prevent to be scattered at groove 255, form a complete combined micro axial fan whereby with clasp 3 buckles of O shape or C shape.
As shown in Figure 3, above-mentioned this recessed catching groove 253 can constitute diameter than the bigger circular groove of groove width at bottom land, this convex fastener 254 then constitutes the cylinder that is complementary with circular groove at ora terminalis, whereby, when fan blade 2 utilizes adjacent recessed catching groove 253 to combine with convex fastener 254, can reach the anti-detachment function of buckle, again with aforesaid clasp 3 buckles at groove 255, make two or more fan blade 2 more firm being assembled in around the wheel hub 1, form minitype axial flow fan.
Structural design by above-mentioned wheel hub 1 and two or more fan blade 2, as shown in Figure 2, make two or more blades 2 around wheel hub 1, be combined to form the radial of five equilibrium, just form a complete combined micro axial fan, can be in described rotating shaft connecting part 11 rotating shafts that connect known motor, be assembled in fan frame again, can be applied to the active heat removal module of associated electrical products such as computer.
Because the wheel hub 1 of the utility model combined micro axial fan and two or more fan blade 2 are the structure of winding more then of ejection formation respectively, so can be made into several fan blade 2, again with identical wheel hub 1 combination, form multiple three-dimension curved surface, shape, the different axial fan finished product of number, just can reduce the cost of recasting entire die neatly in response to the radiating requirements of various electronic products.Most particularly, as Fig. 4 and shown in Figure 5, because fan blade 2 is to adopt the structure of moulding winding then respectively with wheel hub 1, can be assembled into air quantity, the blast effect is better, and reduce the axial fan finished product of noise, the leading edge 21 of a fan blade 2 is covered on the trailing edge 22 of adjacent another fan blade 2, be vertical parallax up and down, from fan top view (as shown in Figure 5), between each fan blade 2 for being void-free structure, but still possess each fan blade 2 formed air channel D (as Fig. 4 or shown in Figure 9), and this kind fan structure common shaft flow fan bottleneck of being difficult to make just, after the design of the utility model structure improvement, promptly can make fully easily.
Other consults Figure 6 and Figure 7, and another preferred embodiment mode of the utility model also comprises wheel hub 1 and two or more fan blade 2.Wherein, wheel hub 1 is as Fig. 6 and shown in Figure 8, its agent structure shape can be as hereinbefore, only outer side wall is provided with two or more caulking grooves 16 around, and this caulking groove 16 can be that the dovetail groove is at outer side wall and extends axially, and makes 161 end edges 14 at wheel hub 1 of its opening.And two or more fan blade 2 then are to be coupled with the voussoir 26 that is complementary and makes up with above-mentioned caulking groove 16 at inner edge 24, so this voussoir 26 constitutes dovetail blocks.Whereby, as Fig. 7 and shown in Figure 9, caulking groove 16 combinations when the voussoir 26 of fan blade 2 inserts wheel hub 1 make two or more fan blade 2 form the radial of five equilibrium around wheel hub 1, just form a complete combined micro axial fan, in like manner also can reach above-mentioned functional effect.
Claims (2)
1, a kind of combined micro axial fan is characterized in that, comprising:
Wheel hub is provided with the rotating shaft connecting part in central authorities, and outer side wall is provided with two or more caulking grooves on every side, and this caulking groove formation extends axially, and the opening of this caulking groove is towards this wheel hub rear end; And
Two or more fan blade, the inner edge of each fan blade are coupled with the voussoir that the caulking groove with wheel hub is complementary; The voussoir of fan blade is plugged in the caulking groove of this wheel hub respectively, and this fan blade at wheel hub on every side radially.
2, combined micro axial fan as claimed in claim 1 is characterized in that, described caulking groove and voussoir constitute dovetail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203094877U CN201241860Y (en) | 2007-12-19 | 2007-12-19 | Combined minitype axial flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203094877U CN201241860Y (en) | 2007-12-19 | 2007-12-19 | Combined minitype axial flow fan |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007203110441U Division CN201241862Y (en) | 2007-12-19 | 2007-12-19 | Combined minitype axial flow fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201241860Y true CN201241860Y (en) | 2009-05-20 |
Family
ID=40715153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007203094877U Expired - Fee Related CN201241860Y (en) | 2007-12-19 | 2007-12-19 | Combined minitype axial flow fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201241860Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104753253A (en) * | 2014-07-28 | 2015-07-01 | 李国� | Detachable motor cooling fan |
| CN105545800A (en) * | 2015-12-15 | 2016-05-04 | 联想(北京)有限公司 | Fan blade structure and cooling fan |
| WO2018076970A1 (en) * | 2016-10-26 | 2018-05-03 | 珠海格力电器股份有限公司 | Impeller and draught fan |
| US11401941B2 (en) | 2018-08-24 | 2022-08-02 | Nidec Copal Electronics Corporation | Air blower |
-
2007
- 2007-12-19 CN CNU2007203094877U patent/CN201241860Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104753253A (en) * | 2014-07-28 | 2015-07-01 | 李国� | Detachable motor cooling fan |
| CN105545800A (en) * | 2015-12-15 | 2016-05-04 | 联想(北京)有限公司 | Fan blade structure and cooling fan |
| WO2018076970A1 (en) * | 2016-10-26 | 2018-05-03 | 珠海格力电器股份有限公司 | Impeller and draught fan |
| US11401941B2 (en) | 2018-08-24 | 2022-08-02 | Nidec Copal Electronics Corporation | Air blower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090520 Termination date: 20101219 |