CN1804407A - Heat radiation fan - Google Patents
Heat radiation fan Download PDFInfo
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- CN1804407A CN1804407A CN 200510124861 CN200510124861A CN1804407A CN 1804407 A CN1804407 A CN 1804407A CN 200510124861 CN200510124861 CN 200510124861 CN 200510124861 A CN200510124861 A CN 200510124861A CN 1804407 A CN1804407 A CN 1804407A
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- Prior art keywords
- radiation fan
- fan
- blades
- radiation
- blade
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Abstract
The invention provides a heat emission fan, which comprises several blades and layered sections between each two near blades to form vent grooves. The invention utilizes single module to realize aforementioned structure, which can reduce the producing cost, increase the blade number and increase the blade size to improve its heat emission ability.
Description
The present invention be the Chinese invention patent application (application number: 02124729.3, the applying date: on June 25th, 2002, denomination of invention: dividing an application radiation fan and preparation method thereof).
Technical field
The present invention is relevant for a kind of fan and preparation method thereof.
Technical background
General electronic product is that the dust of avoiding being subjected in the atmosphere is infected with, and most likely electronic component is placed the housing of sealing.Yet,,, cause the element loss easily and shorten its life-span if continue to be under the condition of high temperature because electronic component the time can produce high temperature in running.Therefore, break down, radiation fan generally can be set in wherein, so that the heat dissipation that the electronic component inner working is produced is to extraneous for avoiding electronic component.
As shown in Figure 1, being the top view of general traditional radiation fan, is that wheel hub 11 and a plurality of flabellums 12 around it by central part are constituted, wherein between two flabellums and underlapped.When making this fan, the paring line of male model 13 and master mold 14 is a dotted line 15 as shown in Figure 2, upwards reaches respectively when demoulding and male model is separated (shown in arrow among the figure) to finish the making of fan with master mold downwards.
If desire increases the exhaust air rate of radiation fan to improve its heat dissipation, the general practice is to strengthen blade structure or increase lobe numbers.But, therefore can't effectively strengthen blade or increase lobe numbers to improve fan duty because the difficulty in the mold design can't form the overlap region between two adjacent blades of general fan.
Yet, constantly improve with the work technology, the present practice is close as far as possible with two adjacent blades, increasing the exhaust air rate of trace, but this practice but can cause mould give as security that tangent plane forms as the edge of a knife as sharp-pointed, it fragilely be can't bear and very easily damage.
Have, U. S. Patent (US6318964B1) discloses a kind of cooling fan again, and it constitutes a combined heat radiating fan by combining of upper and lower two half vanes, and its structure is complicated, assemble not easy, thereby make its fabricating cost high.
The inventor is through concentrated test and research and a spirit of working with perseverance in view of the disappearance of prior art, creates radiation fan of the present invention and preparation method thereof eventually.
Summary of the invention
Main purpose of the present invention is to provide a kind of radiation fan and preparation method thereof, and wherein this radiation fan has a plurality of blades, and can occur an overlap region between two adjacent vanes to form air guide channel.The present invention utilizes single tool to make the technological scheme that has the radiation fan of overlap region between two flabellums, not only can reduce fabricating cost, also can effectively increase the lobe numbers of fan and strengthen blade dimensions to improve its heat dissipation.
Another object of the present invention is to provide a kind of radiation fan, to improve the fan overall permanence with the special flabellum of high-performance and shape.
A further object of the present invention is to provide the radiation fan that has the overlap region between a kind of two adjacent blades that utilize the integrated injection molding mode to make.
Above-mentioned purpose is achieved in that and the invention provides a kind of radiation fan, comprise a body and be located on around this body and a plurality of intact leafs with an airfoil cross-section, wherein, this body and these a plurality of intact leafs are formed in one, and all has an overlap region between these per two adjacent vanes, to form air guide channel.
This radiation fan is made of a body and a plurality of blade of being located on around this body, wherein has an overlap region between two adjacent vanes with the formation air guide channel, and the step of this making method comprises:
1) provide a tool, it comprises one first mould and one second mould, and the paring line position of this first mould and second mould is the blade profile maximum region that corresponds to this radiation fan;
2) moulding is incorporated in a use material in the pre-set space that forms this radiation fan in this tool, carries out the forming step of this radiation fan; And
3) carry out the demoulding along the blade lean direction of this radiation fan, to make this radiation fan.
This first mould and second mould are to be separated from each other with gear transmission mode during its demoulding.
The described material that uses is iron-bearing materials, metal or plastic material.
This body is a cup-shaped wheel hub.
This body has a center drilling.
This body more comprises a plurality of radiation holes.
These a plurality of blades are the structure of aerofoil profile, curved face type, slope surface or cabochon.
The lobe numbers of this radiation fan is odd number or plural number.
The present invention also provides a kind of made radiation fan of said method that adopts, it is made of a body and a plurality of intact leaf of being located on around this body, wherein, has an overlap region between this two adjacent intact leaf, to form air guide channel, these a plurality of intact leafs are integrated injection molding with this body again.
This body is a cup-shaped wheel hub.
This body has a center drilling.
This body more comprises a plurality of radiation holes.
These a plurality of blades are the structure of aerofoil profile, curved face type, slope surface or cabochon.
The lobe numbers of this radiation fan is odd number or plural number.Good effect of the present invention is:
According to conception of the present invention, the step of the making method of this radiation fan comprises provides a tool, this tool comprises one first mould and one second mould, and the paring line position of this first mould and second mould is the blade profile maximum region that corresponds to this radiation fan; Adding one uses material to form in this tool in the pre-set space of this radiation fan to carry out the fan forming step; And carry out the demoulding along the blade lean direction of this radiation fan, to make this radiation fan.
When the demoulding, this first mould and second mould are to be separated from each other with gear transmission mode.And this use material is preferable with iron-bearing materials, metal or plastic material.
Equally, preferable scheme is: this body is the wheel hub of a cup-shaped or is the wheel hub with center drilling.Can form a plurality of radiation holes more in addition on this wheel hub.
The present invention also provides a kind of radiation fan, and it is made of a body and a plurality of intact leaf of being located on around this body, wherein has an overlap region between this two adjacent intact leaf, with the formation air guide channel.
Therefore, according to the conception of this case, this body and these a plurality of blades are to make with integrated injection molding.Wherein, the shape of these a plurality of blades can be changed according to design and actual the use, for example is the structure of aerofoil profile, curved face type, slope surface or cabochon.And its lobe numbers also can be adjusted according to actual demand.Therefore effectively increase lobe numbers and strengthen blade dimensions, and then improve its heat dissipation; In addition, the present invention directly utilizes single tool mode to make the radiation fan that has the overlap region between two flabellums, not only can reduce fabricating cost, and can not give as security tangent plane because of the too sharp-pointed fragile disappearance that can't bear and very easily damage just like the mould of conventional practice.
Description of drawings
Fig. 1 is the top view of general traditional heat-dissipating fan;
Fig. 2 is the schematic representation of stripping means of the radiation fan of construction drawing 1;
The schematic representation of the stripping means when Fig. 3 is an embodiment who makes radiation fan of the present invention;
Fig. 4 is the circle partial enlarged drawing of A partly in the radiation fan of Fig. 3;
Fig. 5 is the top view of the radiation fan of Fig. 3;
Fig. 6 is the stereogram of the radiation fan of Fig. 5;
Fig. 7 is the side isometric view of radiation fan shown in Figure 6;
Fig. 8 is another embodiment's of a radiation fan of the present invention top view;
Fig. 9 is the stereogram of the radiation fan of Fig. 8.
Main piece number contrast:
11,23,33 wheel hubs
12,24,34 blades
15,25 paring lines
13,21 male models
14,22 master molds
35 center drillings
36 radiation holes
Embodiment
The present invention describes understanding that can be more deep in detail by accompanying drawing and preferred embodiment.
Consult Fig. 3 to Fig. 7, first preferred embodiment of radiation fan of its demonstration this case and preparation method thereof.This making method is that a tool is provided earlier, and it comprises a male model 21 and a master mold 22, and paring line 25 positions of this male model 21 and master mold 22 are the maximum or the thickest zone of blade profile that corresponds to this radiation fan, undermines the blade of fan finished product when avoiding the demoulding; Now is added in the pre-set space that forms this radiation fan in this tool the use material to carry out the fan forming process, as steps such as pressurization or heating.When form removal, the aerofoil profile direction of the blade of suitable this radiation fan of work is carried out the demoulding (as Fig. 3 or D direction shown in Figure 4), to make this radiation fan.
The finished product of this radiation fan is made of a wheel hub 23 and a plurality of blades 24 of being located on around this wheel hub 23, wherein can form an overlap region between two adjacent vanes, zone as shown in phantom in Figure 7, with as air guide channel, therefore, when overlooking this fan finished product, can see outward appearance as shown in Figure 5.
In addition, consult Fig. 8 and Fig. 9, it shows second preferred embodiment of the radiation fan of this case.Its production method is same as the previously described embodiments, and both difference is that the wheel hub 33 of this radiation fan has a center drilling 35, and can form a plurality of radiation holes 36 in addition in the periphery of center drilling, with further increase radiating effect.
In sum, according to conception of the present invention, be the paring line position of male model and master mold, and when the demoulding with or the thickest zone maximum with respect to blade profile, with similar gear transmission mode, carry out the demoulding and male model is separated with master mold along the aerofoil profile direction of blade.Therefore, not only can produce the radiation fan that the overlap region is arranged between two adjacent blades,, and then improve its heat dissipation with effective increase lobe numbers and increasing blade dimensions; In addition, the present invention directly utilizes single tool mode to make the radiation fan that has the overlap region between two flabellums, not only can reduce fabricating cost, and can not give as security tangent plane because of the too sharp-pointed fragile disappearance that can't bear and very easily damage just like the mould of conventional practice.
Thus, the present invention must be thought and is to modify as all by person skilled in the art Shi Renshi craftsman, yet does not break away from the scope of claim of the present invention.
Claims (8)
1, a kind of radiation fan is characterized in that, comprises a body and is located on around this body and a plurality of blades with an airfoil cross-section, wherein, this body and these a plurality of intact leafs are formed in one, and all have an overlap region between these per two adjacent vanes, to form air guide channel.
2, radiation fan as claimed in claim 1 is characterized in that, this body is a cup-shaped wheel hub.
3, radiation fan as claimed in claim 1 is characterized in that, this body has a center drilling.
4, the radiation fan described in claim 3 is characterized in that, this body more comprises a plurality of this center hole radiation holes on every side of being located at.
As each described radiation fan in the claim 1 to 3, it is characterized in that 5, this body and these a plurality of blades are integrated injection molding.
As each described radiation fan in the claim 1 to 3, it is characterized in that 6, these a plurality of blades are the structure of aerofoil profile, curved face type, slope surface or cabochon.
As each described radiation fan in the claim 1 to 3, it is characterized in that 7, the lobe numbers of this radiation fan is odd number or plural number.
8. radiation fan as claimed in claim 1 is characterized in that, the material that uses of this radiation fan is iron-bearing materials, metal or plastic materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510124861 CN1804407B (en) | 2002-06-25 | 2002-06-25 | Heat radiation fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510124861 CN1804407B (en) | 2002-06-25 | 2002-06-25 | Heat radiation fan |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02124729 Division CN1274963C (en) | 2002-06-25 | 2002-06-25 | Thermal fan and process for making same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1804407A true CN1804407A (en) | 2006-07-19 |
| CN1804407B CN1804407B (en) | 2010-05-12 |
Family
ID=36866525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510124861 Expired - Lifetime CN1804407B (en) | 2002-06-25 | 2002-06-25 | Heat radiation fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1804407B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287401A (en) * | 2011-08-03 | 2011-12-21 | 孝感学院 | Arc plate blade with ladder-shaped variable thicknesses |
| CN106438473A (en) * | 2016-12-14 | 2017-02-22 | 任丘市鑫睿励门业有限公司 | Cooling fan |
| CN110660758A (en) * | 2018-06-30 | 2020-01-07 | 客瓦垒石（上海）机械设备有限公司 | Radiator structure with radiating holes in shell |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1334767A (en) * | 1998-12-23 | 2002-02-06 | 杰特凡技术有限公司 | Mould for manufacture of fan having hub and plurality of helical blades extending from said hub |
-
2002
- 2002-06-25 CN CN 200510124861 patent/CN1804407B/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287401A (en) * | 2011-08-03 | 2011-12-21 | 孝感学院 | Arc plate blade with ladder-shaped variable thicknesses |
| CN102287401B (en) * | 2011-08-03 | 2013-02-13 | 孝感学院 | Arc plate blade with ladder-shaped variable thicknesses |
| CN106438473A (en) * | 2016-12-14 | 2017-02-22 | 任丘市鑫睿励门业有限公司 | Cooling fan |
| CN110660758A (en) * | 2018-06-30 | 2020-01-07 | 客瓦垒石（上海）机械设备有限公司 | Radiator structure with radiating holes in shell |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1804407B (en) | 2010-05-12 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20100512 |
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| CX01 | Expiry of patent term |