CN100371610C - Heat sink - Google Patents
Heat sink Download PDFInfo
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- CN100371610C CN100371610C CNB2004100696283A CN200410069628A CN100371610C CN 100371610 C CN100371610 C CN 100371610C CN B2004100696283 A CNB2004100696283 A CN B2004100696283A CN 200410069628 A CN200410069628 A CN 200410069628A CN 100371610 C CN100371610 C CN 100371610C
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- sink
- flow guide
- wall
- guide structure
- framework
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Abstract
The present invention provides a heat radiating device which comprises a fan frame, and at least one dynamic leave part, wherein the fan frame is provided with at least one air inlet and at least one air outlet, and the dynamic leave part is arranged in the fan frame and is provided with at least one blade group. At least one air inlet is provided with a wall surface which extends out of the air inlet and a plurality of diversion structures, which improves and stabilizes the wind pressure of the heat radiating device.
Description
Technical field
The present invention relates to a kind of sink, particularly relate to a kind of centrifugal fan that improves with steady wind pressure.
Background technique
General existing blower, as shown in Figure 1, it comprises a housing 10, a motor 11, a blade structure 12 and a loam cake 13, wherein this housing 10 has an opening 101, as the exhaust outlet of blower, and this motor 11 is placed on the pedestal 102 of housing 10, in order to rotate this blade structure 12.This loam cake 13 has a round hole 131, with the wind inlet as this blower.This blade structure 12 also comprises a wheel hub 121, an annular slab 122 and a plurality of wheel blade 123 that is located on it.Yet in this traditional blower design, because its wheel blade is directly to contact runner, and air gap is big about the wheel blade, and wayward airflow direction causes air circulation easily, thereby causes the radiating efficiency step-down.
In addition, some traditional drum blower fan can add several ribs at wind inlet or exhaust outlet place, to strengthen its structural design.Yet this rib not only can't provide diversion function or prevent counter flow action, can become the obstacle in flow field that blower produces on the contrary.Therefore, it there is no substantial effect for the fluid property aspect that improves blower.
Have, the German patent DE 20309621U1 of prior art discloses a kind of sink again, and it comprises a fan frame, constitute by two frameworks, have a wind inlet and an exhaust outlet, also comprise movable vane portion etc., wherein the wind inlet place has the wall that extends, and promptly constitutes the wall of U die cavity 31.Yet this structure still can not solve the problem that above-mentioned prior art exists.
Summary of the invention
Main purpose of the present invention is to provide a kind of sink, and it has the function of significantly raising and steady wind pressure.
Another object of the present invention is to provide a kind of sink, it can make air stream elongated through the pressure process of fan blade, to avoid out the blast generation variation rapidly of air-flow.
According to a conception of the present invention, this sink comprises a fan frame, has at least one wind inlet and at least one exhaust outlet; And at least one movable vane portion, be arranged in this fan frame, it has at least one vane group, wherein this at least one wind inlet place has wall and a plurality of flow guide structure that extends, in order to improve and to stablize the blast of this sink, wherein this wall is should fan in the frame separated by spaces to the inner extension of this fan frame to limit a gas collection runner.
Preferably, this fan frame has one first framework and one second framework, and wherein this first framework has a base, and in order to accepting this movable vane portion, and this at least one wind inlet is formed on this second framework.
Preferably, an end of this wall has a flange, and limiting the inlet of this gas collection runner, this at least one vane group is near the ingress of this gas collection runner and be horizontal radial and extend.And the height of this gas collection runner and the runner height of this movable vane portion and flow guide structure of flowing through be for overlapping partially or completely, and the sectional area of this gas collection runner is equal to the sectional area of this exhaust outlet in fact.
In addition, also be provided with a base portion in the wind inlet of this second framework, and these a plurality of flow guide structures are arranged between this base portion and this wall, in order to improve the blast of this sink.These a plurality of flow guide structures are preferably strip, flat tabular, arc shape or wing structure.These a plurality of flow guide structures can be connected and fixed on the surface of this base portion or this wall.
Preferably, partly for being connected between this base portion and this wall, second flow guide structure part then is connected to this base portion for two ends and this wall intermediate portion is divided into the discontinuous free end that forms for first flow guide structure of these a plurality of flow guide structures.This first flow guide structure part and this second flow guide structure partly are the interleaved configuration.
Perhaps, first flow guide structure of these a plurality of flow guide structures is partly for being connected between this base portion and this wall, second flow guide structure partly is that an end is connected in this wall and the other end is a free end, and the 3rd flow guide structure partly is that an end is connected in this base portion and the other end is a free end.And this first flow guide structure part, this second flow guide structure part and the 3rd flow guide structure partly are the interleaved configuration.
Preferably, these a plurality of flow guide structures have an angle of inclination, and its shape can be similar to the blade shape of this movable vane portion.
In addition, this base has a receiver, and in order to a ccontaining bearing, and the base portion inboard of this second framework is established a bearing in addition, with a rotating shaft of this movable vane portion of together support, the stability when running up to be provided and to reduce the generation of vibrations.
Preferably, this movable vane portion also comprises a ring portion, a base plate and at least one vane group.Wherein this at least one vane group can extend downward this backplate surface from the periphery of this ring portion.Perhaps, this at least one vane group comprises one first vane group and one second vane group, both be staggered arrange or be up and down or about configuration arrange.Certainly, size, number and the shape of this first vane group and second vane group can be identical or different.
In addition, has an axial compression formula air channel in this fan frame.
Preferably, this sink can be a unidirectional wind input type blower, reversely hung Yong centrifugal fan, two-way wind input type blower or axial flow fan.
More preferably, this sink is provided with another group flow guide structure in this at least one exhaust outlet place.
In addition, this sink also comprises a drive unit, is socketed on the receiver of this base and is coupled in this movable vane portion, in order to drive this movable vane portion.
The present invention also provides a kind of sink, and it comprises: a fan frame has at least one opening; And at least one movable vane portion, being arranged in this fan frame, it has at least one vane group, a ring portion and a base plate, and wherein this at least one opening has a plurality of flow guide structures, in order to improve the blast of this sink; This at least one vane group is to extend to this backplate surface from the periphery of this ring portion.
The present invention may be able to more deep understanding by following graphic and detailed description.
Description of drawings
Fig. 1 is the three-dimensional exploded view of existing blower;
Fig. 2 A is the wherein three-dimensional exploded view of a preferred embodiment of centrifugal fan of the present invention;
Fig. 2 B is the sectional view of the centrifugal fan shown in Fig. 2 A;
Fig. 2 C is the stereogram after the centrifugal fan combination shown in Fig. 2 A;
Fig. 3 A to Fig. 3 D is the top view that flow guide structure changes the various preferred embodiments of design in the centrifugal fan of the present invention;
Fig. 4 is the stereogram of another preferred embodiment of centrifugal fan of the present invention;
Fig. 5 is the stereogram of another preferred embodiment again of centrifugal fan of the present invention;
Fig. 6 is first preferred embodiment of centrifugal fan of the present invention and the air quantity and the blast characteristic comparison diagram of existing blower.
Embodiment
See also Fig. 2 A to Fig. 2 C, it shows first preferred embodiment of sink of the present invention.Be to be example with the centrifugal fan in this embodiment, but its design also can be applicable on the axial flow fan.This centrifugal fan is the blower of a unidirectional wind input type, and it mainly comprises one first framework 21, one second framework 22, a drive unit 23, an iron-clad 24 and a movable vane portion 25.This first framework 21 has a receiver 211, makes this drive unit 23 thereon bearable, and a bearing 231 is placed the rotating shaft 27 to support this movable vane portion 25 in this receiver 211.This second framework 22 has a wind inlet 221 and from the downward wall 222 that extends of wind inlet inner edge, after this second framework 22 and this first framework 21 make up, this second framework 22 and this formed separated by spaces in first framework, 21 combination backs are limited the space of a gas collection runner 26 and ccontaining this movable vane portion 25 by this wall 222, also form an exhaust outlet 212 simultaneously.This wall bottom has a flange that extends radially outwardly 223, in order to limit an inlet 261 of this gas collection runner.
This movable vane portion 25 is driven by this drive unit 23, and constituted by a ring portion 251, a base plate 252, one first vane group 253 and one second vane group 254, this first vane group 253 and second vane group 254 all are made up of a plurality of blade, and wherein this first vane group 253 is to extend downward this base plate 252 surfaces from the periphery of this ring portion 251.The arrangement mode of this first vane group 253 and second vane group 254 can be staggered to be arranged, shown in Fig. 2 A.Certainly, size, shape and the configuration mode of this first vane group 253 and second vane group 254 comprise the design that is not limited to shown in Fig. 2 A, for example this first vane group 253 and second vane group 254 can be up and down configuration, and that both size and dimensions can be is identical or different.Therefore, the design of any variation and modification does not still break away from claim of the present invention.
The wind inlet place of this second framework 22 also is provided with a base portion 224, and has a plurality of flow guide structures 225 and be arranged between this base portion 224 and this wall 222, in order to improve the blast of this centrifugal fan.
When this centrifugal fan running, air-flow is after this wind inlet 221 is inhaled into, this first vane group 253 and second vane group 254 through this movable vane portion, and via the ingress 261 that is positioned at this gas collection runner 26 guiding enters this gas collection runner 26, pressurize and gas storage, to avoid the variation rapidly of blast, discharge the air-flow of high blast again from this exhaust outlet 212.
In this embodiment, the wall that the wind inlet edge of this centrifugal fan extends downwards is in order to separate this gas collection runner 26 and this movable vane portion 25, only stay a less exhaust outlet, the pressure process of the air stream of feasible this movable vane portion that flows through is elongated, can avoid the variation rapidly of pressure.This movable vane portion axially on, the runner height of the height of this gas collection runner and flow through this movable vane portion and flow guide structure can be overlapping partially or completely, makes this centrifugal fan can reach purpose of thinness.And the sectional area of this gas collection runner 26 is equal to the sectional area of this exhaust outlet 212 in fact, can avoid the change of air-flow because of area thus, and makes work doing efficiency reduce.
In addition, the present invention adopts the reversing motor Fixed Design, shown in Fig. 2 C, in a bearing 231 being placed this receiver 211, other establishes a bearing 232 rotating shaft 27 with this movable vane portion 25 of together support in base portion 224 inboards of this second framework 22, so that stability that fan runs up and the generation that reduces vibrations to be provided.In addition, the present invention also adopts 29 designs of axial compression formula air channel, shown in Fig. 2 A.
Yet, be arranged on a plurality of flow guide structures 225 on this second framework 22 except being connected between this base portion 224 and this wall 222 shown in Fig. 2 A to Fig. 2 C, its shape and movable vane are close, can be outside the wing-shaped structure, its design modification can be shown in Fig. 3 A to Fig. 3 D, wherein a plurality of flow guide structures among Fig. 3 A 225 are strip or flat version shape structure, are connected between this base portion 224 and this wall 222; But a plurality of flow guide structures 225 separated into two parts among Fig. 3 B, first flow guide structure is partly for being connected in the list structure 225a between this base portion 224 and this wall 222, second flow guide structure part is the discontinuous free-ended structure 225b that forms for two ends are connected to this base portion 224 with these wall 222 intermediate portions then, and this two-part flow guide structure 225a and 225b can be the interleaved configuration; A plurality of flow guide structures 225 among Fig. 3 C can be divided into three part 225a, 225b, 225c, the first flow guide structure part 225a is connected between this base portion 224 and this wall 222, the second flow guide structure part 225b is that an end is connected in this wall 222 and the other end is a free end, and the 3rd flow guide structure part 225c then is that an end is connected in this base portion 224 and the other end is a free end, the flow guide structure 225a of this three part, 225b, 225c also are the interleaved configuration; A plurality of flow guide structures 225 among Fig. 3 D are to be connected between this base portion 224 and this wall 222 and to be arc shape and to have an angle of inclination.
Except above-mentioned flow guide structure is disposed at the mode at wind inlet place, similarly flow guide structure structure 28 also can be arranged at exhaust outlet 212 places in addition, as shown in Figure 4, and the number of this flow guide structure, shape and configuration mode can be done different selections and variation according to practical application.In addition, if when conception of the present invention is applied to a reversely hung Yong centrifugal cutter, two-way wind input type blower or axial flow fan, this flow guide structure structure can be arranged at a wherein wind inlet place, or is arranged at each wind inlet place simultaneously, as shown in Figure 5.
At last, see also Fig. 6, it is air quantity and the blast characteristic comparison diagram of first preferred embodiment of centrifugal fan of the present invention (being shown in Fig. 2 A to 2C) with existing blower (being Fig. 1), figure can know the design of demonstration centrifugal fan of the present invention by flow guide structure and gas collection runner thus, can increase substantially the blast and the air quantity of fan.
Described above comprehensive, wall and flange thereof that the present invention utilizes the wind inlet inner edge to be extended, separated by spaces in the fan frame is gone out a gas collection runner or an air reservoir, make air stream elongated through the pressure process of fan blade, to avoid the variation rapidly of blast, and by the setting of flow guide structure, and then reach the effect of air-flow supercharging, to increase substantially radiating efficiency.
So the present invention must be thought and is to modify as all by person skilled in the art Shi Renshi craftsman, yet all can not break away from as the claimed scope of appended claim.
Claims (15)
1. sink, it comprises:
One fan frame has at least one wind inlet and at least one exhaust outlet; And
At least one movable vane portion, be arranged in this fan frame, it has at least one vane group, wherein this at least one wind inlet place has wall and a plurality of flow guide structure that extends, in order to improve and to stablize the blast of this sink, wherein this wall is should fan in the frame separated by spaces to the inner extension of this fan frame to limit a gas collection runner.
2. sink as claimed in claim 1, wherein this fan frame has one first framework and one second framework, and wherein this first framework has a base, and in order to accepting this movable vane portion, and this at least one wind inlet is formed on this second framework.
3. sink as claimed in claim 2, wherein an end of this wall has a flange, and to limit the inlet of this gas collection runner, this at least one vane group is to extend near the ingress of this gas collection runner.
4. sink as claimed in claim 2, wherein the runner height of the height of this gas collection runner and flow through this movable vane portion and flow guide structure is for overlapping partially or completely, and the sectional area of this gas collection runner equates with the sectional area of this exhaust outlet in fact.
5. sink as claimed in claim 2 wherein also be provided with a base portion in the wind inlet of this second framework, and these a plurality of flow guide structures is arranged between this base portion and this wall, in order to improve the blast of this sink.
6. sink as claimed in claim 5, wherein these a plurality of flow guide structures are connected and fixed on the surface of this base portion or this wall, and these a plurality of flow guide structures are strip, flat tabular, arc shape or wing structure.
7. sink as claimed in claim 6, wherein partly for being connected between this base portion and this wall, second flow guide structure part then is connected to this base portion for two ends and this wall intermediate portion is divided into the discontinuous free end that forms for first flow guide structure of these a plurality of flow guide structures.
8. sink as claimed in claim 6, wherein first flow guide structure of these a plurality of flow guide structures is partly for being connected between this base portion and this wall, second flow guide structure partly is that an end is connected in this wall and the other end is a free end, and the 3rd flow guide structure partly is that an end is connected in this base portion and the other end is a free end.
9. sink as claimed in claim 2, wherein this base has a receiver, and in order to a ccontaining bearing, and the base portion inboard of this second framework is established a bearing in addition, with a rotating shaft of this movable vane portion of together support.
10. sink as claimed in claim 1, wherein this movable vane portion also comprises a ring portion, a base plate and at least one vane group.
11. sink as claimed in claim 10, wherein this at least one vane group is to extend downward this backplate surface from the periphery of this ring portion.
12. sink as claimed in claim 1 wherein has an axial compression formula air channel in this fan frame.
13. sink as claimed in claim 1, wherein this sink is provided with another group flow guide structure at this at least one exhaust outlet place.
14. sink as claimed in claim 1, it also comprises a drive unit, is socketed on the receiver of this base and is coupled in this movable vane portion, in order to drive this movable vane portion.
15. a sink, it comprises:
One fan frame has at least one opening; And
At least one movable vane portion is arranged in this fan frame, and it has at least one vane group, a ring portion and a base plate, and wherein this at least one opening has a plurality of flow guide structures, in order to improve the blast of this sink;
This at least one vane group is to extend to this backplate surface from the periphery of this ring portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100696283A CN100371610C (en) | 2004-07-15 | 2004-07-15 | Heat sink |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100696283A CN100371610C (en) | 2004-07-15 | 2004-07-15 | Heat sink |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1721709A CN1721709A (en) | 2006-01-18 |
| CN100371610C true CN100371610C (en) | 2008-02-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100696283A Active CN100371610C (en) | 2004-07-15 | 2004-07-15 | Heat sink |
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| Country | Link |
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| CN (1) | CN100371610C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400924B (en) * | 2010-09-16 | 2014-08-20 | 台达电子工业股份有限公司 | Fan |
| TWI464323B (en) * | 2010-09-16 | 2014-12-11 | Delta Electronics Inc | Fan |
| JP6136318B2 (en) * | 2013-02-05 | 2017-05-31 | 日本電産株式会社 | Blower fan |
| US10371161B2 (en) | 2016-04-15 | 2019-08-06 | Delta Electronics, Inc | Impeller and centrifugal fan with same |
| CN107299906B (en) * | 2016-04-15 | 2019-06-25 | 台达电子工业股份有限公司 | Impeller and its centrifugal fan being applicable in |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1208822A (en) * | 1997-08-18 | 1999-02-24 | 台达电子工业股份有限公司 | Fluid-guiding means for air-blower |
| US6092988A (en) * | 1998-07-06 | 2000-07-25 | Ford Motor Company | Centrifugal blower assembly with a pre-swirler for an automotive vehicle |
| CN1268629A (en) * | 1999-03-25 | 2000-10-04 | 台达电子工业股份有限公司 | Fan forced inducer device |
| JP2002070791A (en) * | 2000-08-24 | 2002-03-08 | Japan Servo Co Ltd | Axial flow fan |
| CN2549232Y (en) * | 2002-03-26 | 2003-05-07 | 陈原卿 | Fan guidevane of radiator |
| DE20309621U1 (en) * | 2003-03-24 | 2003-09-18 | Motoren Ventilatoren Gmbh | Radial fan for methane blowing has a housing with an axial fan wheel and an air inlet and air exit with a floor area and base surface |
| CN2617972Y (en) * | 2003-04-09 | 2004-05-26 | 三匠科技股份有限公司 | Air flow structure of radiating fan |
-
2004
- 2004-07-15 CN CNB2004100696283A patent/CN100371610C/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1208822A (en) * | 1997-08-18 | 1999-02-24 | 台达电子工业股份有限公司 | Fluid-guiding means for air-blower |
| US6092988A (en) * | 1998-07-06 | 2000-07-25 | Ford Motor Company | Centrifugal blower assembly with a pre-swirler for an automotive vehicle |
| CN1268629A (en) * | 1999-03-25 | 2000-10-04 | 台达电子工业股份有限公司 | Fan forced inducer device |
| JP2002070791A (en) * | 2000-08-24 | 2002-03-08 | Japan Servo Co Ltd | Axial flow fan |
| CN2549232Y (en) * | 2002-03-26 | 2003-05-07 | 陈原卿 | Fan guidevane of radiator |
| DE20309621U1 (en) * | 2003-03-24 | 2003-09-18 | Motoren Ventilatoren Gmbh | Radial fan for methane blowing has a housing with an axial fan wheel and an air inlet and air exit with a floor area and base surface |
| CN2617972Y (en) * | 2003-04-09 | 2004-05-26 | 三匠科技股份有限公司 | Air flow structure of radiating fan |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1721709A (en) | 2006-01-18 |
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