CN100376805C - Radiation device - Google Patents
Radiation device Download PDFInfo
- Publication number
- CN100376805C CN100376805C CNB2004100716925A CN200410071692A CN100376805C CN 100376805 C CN100376805 C CN 100376805C CN B2004100716925 A CNB2004100716925 A CN B2004100716925A CN 200410071692 A CN200410071692 A CN 200410071692A CN 100376805 C CN100376805 C CN 100376805C
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- Prior art keywords
- framework
- sink
- runner
- fan frame
- wall
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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 - Lifetime
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- 230000005855 radiation Effects 0.000 title abstract 2
- 230000001133 acceleration Effects 0.000 claims description 21
- 230000006835 compression Effects 0.000 claims description 11
- 238000007906 compression Methods 0.000 claims description 11
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 241000883990 Flabellum Species 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
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Abstract
The present invention provides a heat radiation device provided with an accelerating flow channel. The present invention comprises a fan frame provided with at least one air inlet and at least one air outlet, and a moving blade part which is arranged in the fan frame and is provided with a hub and a blade group provided with a plurality of blades, wherein the fan frame is provided with a wall surface which extends inwards. The accelerating flow channel is formed among the wall surface, the hub and the blade group.
Description
Technical field
The present invention relates to a kind of sink, relate in particular to a kind of high pressure centrifugal fan with acceleration channels.
Background technique
General known blower, shown in Figure 1A to 1C, it comprises that a fan frame 10, a motor 11, a flabellum member 12 and a loam cake 13, its middle fan frame 10 have an opening 101, as the exhaust outlet of blower, and motor 11 is set on the pedestal 102 of fan frame 10, in order to rotate flabellum member 12.Loam cake 13 has a round hole 131, and it is as the wind inlet of blower.Flabellum member 12 comprises that also a wheel hub 121, an annular slab 122 and a plurality of ring are located at its blade 123 up and down.Then, in this traditional blower design, direction through blade must turn 90 degrees (shown in the dotted arrow among Fig. 1 C) because of air enters behind the runner again, and acceleration direction is also different with the direction that enters blade in the runner, and to the interior place, below of fan frame, acceleration distance is longer more, and speed more slowly, this can cause exit flow field speed inhomogeneous, thereby reduces radiating efficiency.In addition, because air is directly to enter blade, flow velocity increases suddenly, and is also very high to the load of blade, causes its rotating speed not improve, and its performance that can reach is restricted.
Therefore, for overcoming the shortcoming of known technology,, finally create sink of the present invention through overtesting and research.Below the present invention is carried out brief description.
Summary of the invention
Main purpose of the present invention is to provide a kind of sink with acceleration channels.
Another object of the present invention is to provide a kind of centrifugal fan, make the liquid speed in the runner average, improve its blast, and then improve its fluid property and radiating efficiency with acceleration channels.
According to design of the present invention, this sink comprises a fan frame, and it has a wind inlet; An and movable vane portion, be arranged in the fan frame, and has a vane group that a wheel hub and has a plurality of blades, wherein this fan frame has a wall that extends internally, and between wall, wheel hub and vane group, form an acceleration channels, and this wall extends internally from this wind inlet periphery, will fan the interior separated by spaces of frame to limit a gas collection runner.This acceleration channels can be a vertically or laterally crooked runner, and its runner direction is approximately perpendicular to the top end of these blades.
In addition, movable vane portion also comprises a base plate, and vane group is formed on the base plate, and the top end of blade is lower than the end face of wheel hub, and wherein wheel hub, base plate and vane group can be made with the mode of integral injection molding.
Preferably, this fan frame also comprises one first framework, and it has a base, in order to accept movable vane portion; And one second framework, it is coupled to first framework, and wherein wind inlet is formed on second framework, and wall extends to the first framework direction from the wind inlet periphery, and will fan in the frame separated by spaces to limit a gas collection runner.One end of wall has a flange, and to limit the inlet of gas collection runner, an end of vane group is radially extension near the ingress of gas collection runner.The height of gas collection runner is overlapping partially or completely with the runner height of the movable vane portion that flows through.And the sectional area of gas collection runner equals the sectional area of exhaust outlet in fact.
In addition, sink also comprises a drive unit, and it is socketed on the sleeve of base, and is coupled in the movable vane portion, in order to drive movable vane portion.
Have, second framework has an extension part to the extension of the first framework direction again, and it extends degree change is to increase gradually away from air opening end from exhaust outlet place court, and forms one-sided axial compression formula air channel in the fan frame.Perhaps, first framework has one and extends and corresponding to another extension part of extension part to the second framework direction, and forms bilateral axial compression formula air channel in the fan frame.In addition, the fan frame also has a radial compression air channel.
Preferably, a plurality of blades of this vane group are the arc shape structure.Sink can be a unidirectional wind input type blower, reversely hung Yong centrifugal fan, two-way wind input type blower, centrifugal fan or axial flow fan.
The present invention also provides a kind of sink, and it comprises:
One fan frame has one first framework and one second framework, and wherein said second framework is coupled to this first framework, and has a wind inlet, and described first framework is formed with an exhaust outlet; And
One movable vane portion, be arranged in the described fan frame, and has a vane group that a wheel hub and has a plurality of blades, wherein said first framework has a base, in order to accept this movable vane portion, described second framework has a wall to the extension of first framework, and forms an acceleration channels between wall, wheel hub and vane group, wherein this wall extends to the first framework direction from this wind inlet periphery, should fan the interior separated by spaces of frame to limit a gas collection runner.
Description of drawings
The present invention will more in depth understand the present invention by drawings and detailed description.In the accompanying drawing:
Figure 1A is the perspective view of known blower;
Figure 1B is the elevational schematic view after the blower combination shown in Figure 1A;
Fig. 1 C is the sectional drawing of the blower shown in Figure 1A;
Fig. 2 A is the perspective view of sink preferred embodiment of the present invention;
Fig. 2 B is the sectional drawing of the sink shown in Fig. 2 A;
Fig. 3 is the preferred embodiment of centrifugal fan of the present invention and the air quantity and the blast characteristic comparison diagram of known blower.
Embodiment
Consult Fig. 2 A and 2B, it shows the preferred embodiment of sink of the present invention.Be to be example with a centrifugal fan in this embodiment, this centrifugal fan is a unidirectional wind input type blower, 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.First framework 21 has a receiver 211, makes drive unit 23 (as motor) thereon bearable, and bearing 231,232 is arranged in this receiver 211, to support the rotating shaft 27 of movable vane portion 25.Second framework 22 has a wind inlet 221 and from the downward wall 222 that extends of wind inlet inner edge, after second framework 22 and 21 combinations of first framework, by this wall 222 second framework 22 and first framework 21 are made up space in the formed fan frame in back, be separated out the space of a gas collection runner 26 and ccontaining this movable vane portion 25, also form an exhaust outlet 212 simultaneously.The wall bottom has a flange 223 that radially extends, in order to limit an inlet 261 of gas collection runner.
Shown in Fig. 2 B, the present invention forms an acceleration channels 30 between wall 222, vane group 253 and the wind inlet 221 of wheel hub 251, second framework 22, the runner direction of this acceleration channels 30 is approximately perpendicular to the top end of blade, and in other words, the top end of blade is approximately perpendicular to wall 222.Therefore, when movable vane portion turns round, air will vertically enter the top end of blade through acceleration channels thus.Because the air-flow acceleration direction is identical with the angle that enters blade, thus its blast can be improved, so that improve its radiating efficiency.Certainly, this acceleration channels is except being the vertical run, and is also can part crooked laterally.
When centrifugal fan turns round, air-flow is after wind inlet 221 is inhaled into, vane group 253 through movable vane portion, and via the ingress 261 that is positioned at gas collection runner 26 guiding enters gas collection runner 26, pressurize and gas storage, to avoid the variation rapidly of blast, discharge the air-flow of high blast again from exhaust outlet 212.
In this embodiment, the wall that extends downwards at the wind inlet edge of centrifugal fan in order to separate the space of gas collection runner 26 and ccontaining movable vane portion 25, only stays a less exhaust outlet, the pressure process of the air stream of the feasible movable vane portion that flows through is elongated, thereby can avoid the variation rapidly of pressure.Movable vane portion axially, the runner height of the height of gas collection runner and the movable vane portion that flows through can be overlapping partially or completely, makes centrifugal fan can reach purpose of thinness.And the sectional area of gas collection runner 26 equals the sectional area of exhaust outlet 212 in fact, can avoid air-flow thus and make working efficiency reduce because of the change of area.
In addition, in the present invention, this centrifugal fan is to adopt the design of axial compression formula air channel, and shown in Fig. 2 A, it is one-sided axial compression formula air channel.The internal surface of second framework 22 has the extension part 29 that extends to first framework, 21 directions, and it is towards increasing gradually away from air opening end from the exhaust outlet place that the axial depth of its extension changes.After second framework 22 and 21 combinations of first framework, will in the fan frame, form an axial compression formula air channel, thereby make air-flow more smooth-going.Certainly, according to another design of the present invention, except having the radial compression air channel that is had as the traditional drum blower fan, first framework also can form one and extend and corresponding to another extension part of extension part 29, to form bilateral axial compression formula air channel to the second framework direction.
At last, consult Fig. 3, Fig. 3 is the preferred embodiment (being shown in Fig. 2 A and the 2B) of centrifugal fan of the present invention and the air quantity and the blast characteristic comparison diagram of known blower (being shown in Figure 1A to 1C), demonstrate the design of centrifugal fan of the present invention by knowing among this figure, can increase substantially the blast and the air quantity of fan by acceleration channels.
In sum, the invention provides a kind of centrifugal fan, make the liquid speed in the runner average, improve its blast, and then improve its fluid property and radiating efficiency with acceleration channels.
Claims (15)
1. sink, it comprises:
One fan frame has a wind inlet and at least one exhaust outlet; And
One movable vane portion, be arranged in the described fan frame, and has a vane group that a wheel hub and has a plurality of blades, wherein said fan frame has a wall that extends internally, and between wall, wheel hub and vane group, form an acceleration channels, and this wall extends internally from this wind inlet periphery, will fan the interior separated by spaces of frame to limit a gas collection runner.
2. sink as claimed in claim 1, wherein said acceleration channels are a vertically or laterally crooked runner.
3. sink as claimed in claim 1, the runner direction of wherein said acceleration channels is approximately perpendicular to the top end of blade.
4. sink as claimed in claim 1, wherein said movable vane portion also comprises a base plate, and vane group is formed on the base plate, and the top end of blade is lower than the end face of wheel hub.
5. sink as claimed in claim 4, wherein said wheel hub, base plate and vane group can be made with the integral injection molding mode.
6. sink as claimed in claim 1, wherein said fan frame also comprises:
One first framework has a base, in order to accept movable vane portion; And
One second framework is coupled to first framework, and wherein wind inlet is formed on second framework.
7. sink as claimed in claim 1, an end of wherein said wall has flange, and to limit the inlet of gas collection runner, an end of vane group extends towards being near the ingress of gas collection runner radially.
8. sink as claimed in claim 1, the runner height of the height of wherein said gas collection runner and the movable vane portion that flows through is for partially or even wholly overlapping, and the sectional area of gas collection runner equals the sectional area of exhaust outlet in fact.
9. sink as claimed in claim 1 wherein also comprises a drive unit, is socketed on the sleeve of base, and is coupling in the movable vane portion, in order to drive movable vane portion.
10. sink as claimed in claim 1, wherein said second framework has an extension part to the extension of the first framework direction, it extends degree change is to increase gradually away from air opening end from exhaust outlet place court, and forms one-sided axial compression formula air channel in the fan frame.
Extend and corresponding to another extension part of extension part to the described second framework direction 11. sink as claimed in claim 10, wherein said first framework have one, and in described fan frame, form bilateral axial compression formula air channel.
12. as claim 10 or 11 described sinks, wherein said fan frame also has a radial compression air channel.
13. sink as claimed in claim 1, a plurality of blades of wherein said vane group are the arc shape structure.
14. a sink, it comprises:
One fan frame has one first framework and one second framework, and wherein said second framework is coupled to this first framework, and has a wind inlet, and described first framework is formed with an exhaust outlet; And
One movable vane portion, be arranged in the described fan frame, and has a vane group that a wheel hub and has a plurality of blades, wherein said first framework has a base, in order to accept this movable vane portion, described second framework has a wall to the extension of first framework, and forms an acceleration channels between wall, wheel hub and vane group, wherein this wall extends to the first framework direction from this wind inlet periphery, should fan the interior separated by spaces of frame to limit a gas collection runner.
15. sink as claimed in claim 14, wherein said acceleration channels are a vertically or laterally crooked runner, and the runner direction of acceleration channels is approximately perpendicular to the top end of blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100716925A CN100376805C (en) | 2004-07-21 | 2004-07-21 | Radiation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100716925A CN100376805C (en) | 2004-07-21 | 2004-07-21 | Radiation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1724877A CN1724877A (en) | 2006-01-25 |
| CN100376805C true CN100376805C (en) | 2008-03-26 |
Family
ID=35924469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100716925A Expired - Lifetime CN100376805C (en) | 2004-07-21 | 2004-07-21 | Radiation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100376805C (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6483898A (en) * | 1987-09-25 | 1989-03-29 | Mitsubishi Electric Corp | Bellmouth for propeller fan |
| JPH01249981A (en) * | 1988-03-30 | 1989-10-05 | Matsushita Electric Ind Co Ltd | Centripetal type blower |
| US5025629A (en) * | 1989-03-20 | 1991-06-25 | Woollenweber William E | High pressure ratio turbocharger |
| US6386839B1 (en) * | 2000-12-28 | 2002-05-14 | Wen-Hao Chuang | High performance radiator fan |
| CN2577017Y (en) * | 2002-11-07 | 2003-10-01 | 东莞东坑小塘特翊电机厂 | Blowing machine |
| CN1132293C (en) * | 1998-12-03 | 2003-12-24 | 阿尔斯通公司 | Air cooling electric machine with axial fan |
-
2004
- 2004-07-21 CN CNB2004100716925A patent/CN100376805C/en not_active Expired - Lifetime
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6483898A (en) * | 1987-09-25 | 1989-03-29 | Mitsubishi Electric Corp | Bellmouth for propeller fan |
| JPH01249981A (en) * | 1988-03-30 | 1989-10-05 | Matsushita Electric Ind Co Ltd | Centripetal type blower |
| US5025629A (en) * | 1989-03-20 | 1991-06-25 | Woollenweber William E | High pressure ratio turbocharger |
| CN1132293C (en) * | 1998-12-03 | 2003-12-24 | 阿尔斯通公司 | Air cooling electric machine with axial fan |
| US6386839B1 (en) * | 2000-12-28 | 2002-05-14 | Wen-Hao Chuang | High performance radiator fan |
| CN2577017Y (en) * | 2002-11-07 | 2003-10-01 | 东莞东坑小塘特翊电机厂 | Blowing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1724877A (en) | 2006-01-25 |
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| C06 | Publication | ||
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| C10 | Entry into substantive examination | ||
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Granted publication date: 20080326 |
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| CX01 | Expiry of patent term |