CN103372651A - Fan blade producing method and fan device - Google Patents
Fan blade producing method and fan device Download PDFInfo
- Publication number
- CN103372651A CN103372651A CN2012101060636A CN201210106063A CN103372651A CN 103372651 A CN103372651 A CN 103372651A CN 2012101060636 A CN2012101060636 A CN 2012101060636A CN 201210106063 A CN201210106063 A CN 201210106063A CN 103372651 A CN103372651 A CN 103372651A
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- flabellum
- fan
- preparation
- fan blade
- electric fan
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Abstract
A fan blade producing method includes providing a fan blade mould; injecting mixture of metal powder and molten adhesive into the fan blade mould in an injected and formed manner to form a blank of the fan blade; removing the adhesive on the blank of the fan blade; sintering the blank of the fan blade to form the fan blade. Since the fan blade is produced by metal powder in the injected and formed manner, compared with the prior art, the thickness of the fan blade is thin, accordingly a fan device has larger air flow, radiating efficiency is improved; furthermore, since the blade is produced by metal powder, deformation occurs rarely to cause interference between the fan blade and an upper cap, and stability of the fan device is improved. The invention further provides a fan device applying the fan blade.
Description
Technical field
The fan assembly that the present invention relates to a kind of preparation method of electric fan and use described electric fan.
Background technology
In the situation that electronic product performance promotes day by day, a large amount of heats is also followed and is given birth to.Radiator fan is the parts that often are used to auxiliary heat dissipation.
On the other hand, the trend that electronic product has size to dwindle gradually, weight lightens, and its thickness tends to thin type especially day by day, for example notebook computer.In order to satisfy the demand of slimming electronic product, fan also must develop towards slimming.
Fan assembly generally comprises the fan frame and is contained in the interior flabellum of fan frame, and described fan frame comprises loam cake, lower cover and connects the sidewall of loam cake and lower cover.Under the slim framework of this limited space, how to overcome fluid impedance, improve air flow property, guarantee that the heat dissipation of thin fan becomes new challenge.Traditional fan assembly adopts the plastic cement flabellum, because the plastic cement flabellum is taked the outgoing moulding, the flabellum thickness after the moulding is generally 0.8 millimeter at least greater than 0.6 millimeter.Because flabellum is thicker, the heat dispersion of its to a certain degree upper restriction thin fan, secondly, under long-time rotation and the hot environment, the plastic cement flabellum easily produces deformation, may cause the interference between flabellum and the loam cake, affects the running of thin fan, if take the traditional method of minimizing flabellum height to avoid interfering, then can further weaken the heat dispersion of thin fan.
Summary of the invention
In view of this, be necessary to provide a kind of preparation method of electric fan to improve radiating efficiency and the stability of flabellum.
A kind of preparation method of electric fan may further comprise the steps:
One fan blade mould is provided;
With injection molding method the mixture of metal dust and bond vitrified agent is injected in this fan blade mould to form the idiosome of flabellum;
Binding agent in the idiosome of removal flabellum; And
The idiosome of sintering flabellum is to form flabellum.
A kind of fan assembly comprises the fan frame and is contained in the interior blade structure of fan frame.Described blade structure comprises wheel hub, be arranged on the supporting construction around the wheel hub and be fastened on some flabellums on the described supporting construction.Described some flabellums are made by the method for metal dust ejection formation.
In the preparation method of said fans device and electric fan, because the flabellum of fan is made by the method for metal dust ejection formation, compares with the flabellum that plastics are made, the thickness of above-mentioned flabellum can be thinner, thereby make the said fans device have larger wind flow, improve its radiating efficiency.In addition, because flabellum made by metal material, it is difficult for deformation occurs and causes and interfere between flabellum and the loam cake, thereby improves the stability of fan assembly.
Description of drawings
Fig. 1 is the combination schematic diagram of the fan assembly that provides of the embodiment of the invention.
Fig. 2 is the exploded view of the fan assembly of Fig. 1.
Fig. 3 is the inverted view of Fig. 2 fan device.
Fig. 4 is the top view of flabellum described in Fig. 2.
The main element symbol description
| |
10 |
| The |
100 |
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110 |
| The second |
111 |
| The |
112 |
| Round |
113 |
| |
114 |
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120 |
| The first |
121 |
| |
130 |
| Body | 131 |
| The first side plate | 132 |
| The second side plate | 133 |
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134 |
| Connecting |
140 |
| The |
141 |
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142 |
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143 |
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150 |
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200 |
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210 |
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220 |
| Brace | 221 |
| The |
222 |
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230 |
| Locating |
231 |
The following specific embodiment further specifies the present invention in connection with above-mentioned accompanying drawing.
The specific embodiment
Referring to diagram, the preparation method of fan assembly of the present invention and electric fan is further described.
See also Fig. 1, the fan assembly 10 that the embodiment of the invention provides comprises fan frame 100 and is contained in the blade structure 200 of fanning in the frame 100.The air-flow that described fan assembly 10 produces is used for assisting electronic element radiating.
See also Fig. 2 and Fig. 3, described fan frame 100 comprises base plate 110, be arranged on the base plate 110 cover plate 120 and from cover plate 120 edges to downward-extension and be connected in sidewall 130 between base plate 110 and the cover plate 120.Described sidewall 130 is formed with outward extending connecting portion 140 near an end of base plate 110, and described connecting portion 140 fits tightly with base plate 110.In the present embodiment, described cover plate 120, sidewall 130 and connecting portion 140 are one-body molded.This base plate 110, cover plate 120, sidewall 130 and the connecting portion 140 common receiving spaces 150 that form are used for accommodating blade structure 200.
Particularly, described base plate 110 and cover plate 120 are respectively tabular and are oppositely arranged.The center of described cover plate 120 is provided with the first air intake vent 121, and the center of described base plate 110 is provided with the second air intake vent 111.Described the first air intake vent 121 and the second air intake vent 111 are used for making in the course of the work fan assembly 10 to absorb cold air from the external world.
Described sidewall 130 is semi-enclosed structure, itself and base plate 110 and the cover plate 120 common air outlets 134 that form rectangles.
Described connecting portion 140 forms from the vertical outwards horizontal-extending of lower edge of sidewall 130.The position of the end of described connecting portion 140 corresponding bodies 131 is provided with the first lug 141.Described the first lug 141 comprises round hole 142 and to the buckle 143 of downward-extension.Described round hole 142 is used for wearing with fixed base plate 110 and cover plate 120 for screw.Described buckle 143 is used for fixing described fan assembly 10.Correspondingly, the position of described base plate 110 corresponding the first lugs 141 is provided with the second lug 112.Described the second lug 112 comprises round hole 113.Described round hole 113 and 142 position are mutually corresponding to be worn with fixed base plate 110 and cover plate 120 for screw.Some grooves 114 are offered in the position of base plate 110 peripheral corresponding connection parts 140 some buckles 143, and are fixing in order to cooperate with these some buckles 143 this fan assembly 10.
Described blade structure 200 comprises wheel hub 210, be arranged on the supporting construction 220 around the wheel hub 210 and be fastened on some flabellums 230 on the described supporting construction 220.
See also Fig. 4, described supporting construction 220 comprises that to be arranged on wheel hub 210 peripheral and become the brace 221 of increased radioactivity and the holding rings 222 away from wheel hub 210 1 ends that are arranged on brace 221.Described some flabellums 230 are arranged on the described holding ring 222.
Described some flabellums 230 are the Curved sheet, and a side of the close holding ring 222 of each flabellum 230 all offers locating slot 231.In when assembling, the locating slot 231 of described flabellum 230 is nested on the described holding ring 222, thereby makes locating slot 231 that holding ring 222 passes described flabellum 230 with fixing flabellum 230.In the present embodiment, described flabellum 230 is comprised of metal and makes by the method for metal dust ejection formation.Described some flabellums 230 arrange and are arranged on equally spacedly on the described holding ring 222 around wheel hub 210.The thickness of described flabellum 230 is less than 0.5mm.As required, the thickness of described flabellum 230 is set to 0.3mm.Above-mentioned fan assembly 10 drives flabellum 230 High Rotation Speeds by wheel hub 210 is rotated when work.Air sucks from the first air intake vent 121 and the second air intake vent 111, then discharges from air outlet 134, thereby is electronic element radiating.
Described some flabellums 230 are made in the following manner.
At first, provide a fan blade mould, and with injection molding method the mixture of metal dust and bond vitrified agent is injected in the fan blade mould to form the idiosome of flabellum 230.The material of described metal dust is selected from stainless steel, copper or titanium.Described binding agent is selected from paraffin, polyethylene, polypropylene or olefin hydrocarbons thermoplasticity material.Preferably, the weight ratio of described binding agent and metal dust is between 0.07 to 0.1.
Secondly, by degreasing or extracting process the binding agent in the idiosome of flabellum 230 is removed.
Behind skimming processes, because binding agent is removed, the idiosome of resulting flabellum 230 is often more loose, need to carry out sintering to the idiosome of flabellum 230 and make it become more densified, to obtain high density, high-intensity goods.According to the idiosome material of different flabellum 230, can be chosen under the atmosphere such as vacuum, oxygen or nitrogen and carry out high temperature sintering.The temperature of described sintering changes in 1500 degree scopes at 800 degree.
Behind sintering, the idiosome of this flabellum 230 will shrink distortion, can adopt the machining mode that the idiosome of flabellum 230 is carried out the size finishing.Machining mode commonly used has multiple, and such as the broaching tool finishing, bit dressing grinds, and numerical control etc. also can use chemical etching or electrochemical discharge mode to repair the idiosome of this flabellum 230 in the machining mode to obtain described flabellum 230.The flabellum 230 that makes will be assembled on the described holding ring 222, thereby form above-mentioned blade structure 200 to form fan assembly 10.This flabellum 230 forms by the metal dust ejection formation, has very high freedom shape, can obtain to greatest extent the part near net shape, effectively reduce the following process amount, and more be conducive to make the part of high-melting-point, high strength, complicated shape with respect to other molding mode, easily realize automation, production in enormous quantities.
In the fan assembly 10 of the embodiment of the invention, owing to flabellum 230 is made of metal and makes by the method for metal dust ejection formation, to compare with the flabellum that plastics are made, the thickness of above-mentioned flabellum can be thinner.For example general plastics flabellum and thickness by ejection formation is 0.6mm, and the flabellum 230 that the embodiment of the invention provides is made by the method for metal dust ejection formation, and its thickness can be made less than 0.3mm.Therefore, the fan assembly 10 that the embodiment of the invention provides has larger wind flow, thereby has improved its radiating efficiency.
In addition, because flabellum made by metal material, because metal material has good material characteristic, its stress intensity is higher, and it is difficult for deformation occurs and causes and interfere between flabellum and the loam cake, thereby improves the stability of fan assembly.
Be understandable that, for the person of ordinary skill of the art, can make other various corresponding changes and distortion by technical conceive according to the present invention, and all these change the protection domain that all should belong to claim of the present invention with distortion.
Claims (10)
1. the preparation method of an electric fan may further comprise the steps:
One fan blade mould is provided;
With injection molding method the mixture of metal dust and bond vitrified agent is injected in this fan blade mould to form the idiosome of flabellum;
Binding agent in the idiosome of removal flabellum; And
The idiosome of sintering flabellum is to form flabellum.
2. the preparation method of electric fan as claimed in claim 1 is characterized in that, described metal dust is selected from stainless steel, copper or titanium material.
3. the preparation method of electric fan as claimed in claim 1 is characterized in that, described adhesive is selected from paraffin, polyethylene, polypropylene or olefin hydrocarbons thermoplasticity material.
4. the preparation method of electric fan as claimed in claim 1 is characterized in that, the percentage by weight of described adhesive and metal dust is between 0.07 to 0.1.
5. the preparation method of electric fan as claimed in claim 1 is characterized in that, the scope of the sintering temperature of described flabellum is between 800 degree are spent to 1500.
6. the preparation method of electric fan as claimed in claim 5 is characterized in that, the process of described sintering flabellum is carried out under vacuum, oxygen or nitrogen atmosphere.
7. the preparation method of electric fan as claimed in claim 1 is characterized in that, the thickness of described flabellum behind sintering is 0.5mm.
8. the preparation method of electric fan as claimed in claim 7 is characterized in that, the thickness of described flabellum behind sintering is 0.3mm.
9. fan assembly, comprise the fan frame and be contained in the interior blade structure of fan frame, described blade structure comprises wheel hub, be arranged on the supporting construction around the wheel hub and be fastened on some flabellums on the described supporting construction, it is characterized in that described some flabellums are made by the preparation method of the described electric fan of claim 1-8 any one.
10. fan assembly as claimed in claim 9, it is characterized in that, described supporting construction comprises that to be arranged on wheel hub peripheral and become the brace of increased radioactivity and the holding ring away from wheel hub one end that is arranged on brace, described flabellum offers clamping groove, makes flabellum be fixed on the holding ring thereby described clamping groove is used for the holding ring of the described supporting construction of sandwiched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101060636A CN103372651A (en) | 2012-04-12 | 2012-04-12 | Fan blade producing method and fan device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101060636A CN103372651A (en) | 2012-04-12 | 2012-04-12 | Fan blade producing method and fan device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103372651A true CN103372651A (en) | 2013-10-30 |
Family
ID=49458834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101060636A Pending CN103372651A (en) | 2012-04-12 | 2012-04-12 | Fan blade producing method and fan device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103372651A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545800A (en) * | 2015-12-15 | 2016-05-04 | 联想(北京)有限公司 | Fan blade structure and cooling fan |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1275456A (en) * | 2000-06-14 | 2000-12-06 | 太原艺星科技有限公司 | Method for making precision shaped porous component |
| CN2493762Y (en) * | 2001-07-31 | 2002-05-29 | 建准电机工业股份有限公司 | Fan wheel |
| CN1699759A (en) * | 2004-05-17 | 2005-11-23 | 台达电子工业股份有限公司 | Fan |
| CN1824434A (en) * | 2006-03-24 | 2006-08-30 | 周彦学 | Technological method of shaping automobile booster turbine and impeller using metallic powder injection |
| CN201090475Y (en) * | 2007-08-22 | 2008-07-23 | 元山科技工业股份有限公司 | Single stator external pole type heat radiating fan |
| JP2008223743A (en) * | 2007-03-16 | 2008-09-25 | Sony Corp | Centrifugal impeller, fan device and electronic apparatus |
| CN101445881A (en) * | 2007-11-26 | 2009-06-03 | 比亚迪股份有限公司 | Preparation method of cermet material |
-
2012
- 2012-04-12 CN CN2012101060636A patent/CN103372651A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1275456A (en) * | 2000-06-14 | 2000-12-06 | 太原艺星科技有限公司 | Method for making precision shaped porous component |
| CN2493762Y (en) * | 2001-07-31 | 2002-05-29 | 建准电机工业股份有限公司 | Fan wheel |
| CN1699759A (en) * | 2004-05-17 | 2005-11-23 | 台达电子工业股份有限公司 | Fan |
| CN1824434A (en) * | 2006-03-24 | 2006-08-30 | 周彦学 | Technological method of shaping automobile booster turbine and impeller using metallic powder injection |
| JP2008223743A (en) * | 2007-03-16 | 2008-09-25 | Sony Corp | Centrifugal impeller, fan device and electronic apparatus |
| CN201090475Y (en) * | 2007-08-22 | 2008-07-23 | 元山科技工业股份有限公司 | Single stator external pole type heat radiating fan |
| CN101445881A (en) * | 2007-11-26 | 2009-06-03 | 比亚迪股份有限公司 | Preparation method of cermet material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545800A (en) * | 2015-12-15 | 2016-05-04 | 联想(北京)有限公司 | Fan blade structure and cooling fan |
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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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20131030 |
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| RJ01 | Rejection of invention patent application after publication |