CN101008405A - Heat radiation fan - Google Patents
Heat radiation fan Download PDFInfo
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- CN101008405A CN101008405A CN 200610002097 CN200610002097A CN101008405A CN 101008405 A CN101008405 A CN 101008405A CN 200610002097 CN200610002097 CN 200610002097 CN 200610002097 A CN200610002097 A CN 200610002097A CN 101008405 A CN101008405 A CN 101008405A
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- heat
- circuit board
- radiation fan
- pedestal
- electronic elements
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Abstract
A radiating fan comprises a frame, a blade wheel, and a circuit board, wherein, the frame has an airflow channel and a base; the base is at one side of airflow channel to support the circuit board; the blade wheel is rotationally arranged on the base with a hub and several blades; the circuit board has at least one heating electric element. Along the axle of frame, the heating electric element protrudes outside the hub of blade wheel, while at least one part is at the descending position of said blade, to radiate the heat. The invention can improve the radiating efficiency and prolong the service life, reduce the interference and noise.
Description
Technical field
The present invention relates to radiation fan, refer to especially a kind of at least one heat-generating electronic elements is located at the leeward of the blade of impeller, with the radiation fan that promotes the heat-generating electronic elements radiating efficiency and increase the service life.
Background technique
Please refer to shown in Figure 1ly, commonly use radiation fan, comprise a housing 1, an impeller 2 and a circuit board 3.This housing 1 is provided with an air-flow path 10, a wind inlet 11, an exhaust outlet 12, a pedestal 13 and stator group 14.This air-flow path 10 is in order to ccontaining this impeller 2, but and air feed stream by these wind inlet 11 inputs and by these exhaust outlet 12 outputs.This pedestal 13 is located at this exhaust outlet 12 sides, in order to carrying this circuit board 3 and stator pack 14, and in conjunction with this impeller 2.This impeller 2 is provided with a wheel hub 21, an axostylus axostyle 22, several blades 23 and a ring magnet 24.This wheel hub 21 is down bowl-type.This axostylus axostyle 22 is positioned at the central interior of this wheel hub 21, so that to be incorporated into movingly on this pedestal 13.Each blade 23 is located on the outer circumferential face of this wheel hub 21.This circuit board 3 is provided with a sense cell 31 and at least one heat-generating electronic elements 32, and is excitatory in order to the alternation of controlling this stator pack 14.During running, this ring magnet 24 is excitatory in order to the alternation of responding to this stator pack 14, rotate to promote this impeller 2, and then by each blade 23 drive air-flows from these wind inlet 11 side flow to these exhaust outlet 12 sides.
Generally speaking, there is following shortcoming in the above-mentioned radiation fan of commonly using, and for example: between the radiation fan on-stream period, the heat-generating electronic elements of this circuit board 3 32 is an example with the transistor, is the lock flow path direction that utilizes the metal/non-metal blending material control electric current of semiconduction.Therefore, during these heat-generating electronic elements 32 actions, how many these heat-generating electronic elements 32 materials own must consume the part electric energy, and convert thereof into heat energy.Yet textural, this heat-generating electronic elements 32 is positioned at this pedestal 13 and wheel hub 21, and this heat-generating electronic elements 32 lacks suitable cooling mechanism usually.If the heat energy of this heat-generating electronic elements 32 fails in time to disperse, then too high temperature will reduce the action stability of this heat-generating electronic elements 32, even influence the working life of this radiation fan.For these reasons, be necessary further to improve the above-mentioned radiation fan of commonly using.
In view of this, the present invention improves above-mentioned shortcoming, and a circuit board is protruded out to the leeward of the blade of impeller by a pedestal, and the air-flow that each blade is guided can dispel the heat at least one heat-generating electronic elements on this circuit board simultaneously.Therefore, the present invention can promote the radiating efficiency of this heat-generating electronic elements really relatively, and then prolongs the working life of this radiation fan relatively.
Summary of the invention
Main purpose of the present invention provides a kind of at least one heat-generating electronic elements with circuit board and protrudes out to the blade leeward of an impeller by pedestal, so that dispel the heat, can promote the radiating efficiency of heat-generating electronic elements and the radiation fan that increases the service life.
Secondary objective of the present invention provides a kind of at least one heat-generating electronic elements with circuit board and protrudes out to the blade leeward of an impeller by a pedestal, and corresponding to a floor, can reduce the radiation fan of flow-disturbing and noise.
Technological scheme of the present invention:
A kind of radiation fan, it comprises: a housing, it is provided with a wind inlet, an air-flow path, an exhaust outlet and a pedestal, and this wind inlet and exhaust outlet lay respectively at two sides of this air-flow path, and this pedestal is located at a side of this air-flow path; One impeller, rotating being combined on this pedestal, and be provided with a wheel hub and several blades; And a circuit board, it is carried on this pedestal, and is provided with at least one heat-generating electronic elements, this housing axially on, this heat-generating electronic elements protrudes out to outside the scope of this impeller wheel hub, and is positioned at the leeward of this blade to small part, in order to dispersing the heat energy that this heat-generating electronic elements produces.
The invention has the advantages that:
1, because the extension part of circuit board radially outwards protrudes out, makes the part of heat-generating electronic elements it on protrude out to the leeward of each blade at least, therefore, can promote the radiating efficiency of heat-generating electronic elements, the working life of prolongation radiation fan.
2, since on the circuit board at least one heat-generating electronic elements protrude out to the leeward of each blade, and, therefore, can reduce the flow-disturbing and the noise of radiation fan corresponding to the floor of a tool breach.
Description of drawings
Fig. 1, for commonly using the sectional view of radiation fan.
Fig. 2, be the three-dimensional exploded view of first embodiment of the invention.
Fig. 3, be the plan view of first embodiment of the invention.
Fig. 4, be the 4-4 sectional view of first embodiment of the invention.
Fig. 5, be the plan view of second embodiment of the invention.
Fig. 6, be the plan view of third embodiment of the invention.
Fig. 7, be the sectional view of third embodiment of the invention.
Embodiment
For allowing above-mentioned purpose of the present invention, technical characteristics and advantage thereof, can become apparent, preferred embodiment of the present invention cited below particularly, and conjunction with figs. is described in detail as follows:
Please refer to shown in Figure 2, first embodiment of the invention, a kind of radiation fan mainly comprises a housing 1, an impeller 2 and a circuit board 3.This circuit board 3 maintains specific relative assembled relation with this housing 1 and impeller 2, so that prolong the working life of these circuit board 3 circuit relatively.
Please refer to shown in Fig. 2,3, this housing 1 is provided with an air-flow path 10, a wind inlet 11, an exhaust outlet 12, a pedestal 13 and stator group 14.This air-flow path 10 is in order to ccontaining this impeller 2.This wind inlet 11 and exhaust outlet 12 lay respectively at two sides of this air-flow path 10, and can be respectively in order to input air-flow and output gas flow.This pedestal 13 can be located at these exhaust outlet 12 sides or wind inlet 11 sides, and it is provided with several floors 130, a central siphon 131, at least one bearing 132 and at least one breach 133.Each floor 130 is connected between air-flow path 10 internal faces of this pedestal 13 and housing 1, and at least one floor 130 has metallic channel a and lead breach b, in order to the power line (not shown) of ccontaining this circuit board 3.This central siphon 131 is arranged on this pedestal 13 central authorities with one-body molded or compound mode, for being installed with this bearing 132.This breach 133 is corresponding to floor 130, and is particularly preferable corresponding to the floor 130 with this metallic channel a.This stator pack 14 is installed on this pedestal 13 together with circuit board 3, and is excitatory in order to produce alternation.
This impeller 2 is provided with a wheel hub 21, an axostylus axostyle 22, several blades 23 and a ring magnet 24.This wheel hub 21 is down bowl-type.This axostylus axostyle 22 is located at the central interior of this wheel hub 21, so that tie in the bearing 132 of this pedestal 13 to insert movingly.Each blade 23 ring is located at the outer circumferential face of this wheel hub 21, and selects for use axial--flow blading preferable.This ring magnet 24 is located at the inwall of this wheel hub 21, and is excitatory in order to respond to the alternation that this stator pack 14 produces, promote this impeller 2 and rotate, and then by each blade 23 drive air-flows by these wind inlet 11 side shafts to flowing to this exhaust outlet 12 sides.
This circuit board 3 is a rigid printed circuit board, is fan-shaped sheet or rectangle sheet.This circuit board 3 is provided with at least one extension part 30, at least one sense cell 31 and at least one heat-generating electronic elements 32.This circuit board 3 is installed on this pedestal 13, and preferable near breach 133 places of this floor 130.This extension part 30 is radially outwards protruded out by this circuit board 3, and protrudes out on this breach 133 floor 130 outward.This sense cell 31 is located in the side of this circuit board 3, and to the bottom end corresponding to these impeller 2 ring magnets 24, so this sense cell 31 can be detected the change in polarity of this ring magnet 24 along housing shaft.This heat-generating electronic elements 32 is located in extension part 30 1 sides of this circuit board 3, and it is preferable near a side of impellers 2 to be located at this extension part 30.This heat-generating electronic elements 32 is in order to handle the signal of these sense cell 31 detectings, so that further export alternating current to this stator pack 14.This heat-generating electronic elements 32 selects for use transistor or ic package (IC) preferable, for example field-effect transistor (field-effect transistor, FET) or metal-oxide semiconductor (MOS) (metal-oxide semi-conductor, MOS) etc.
Please refer to shown in Fig. 3,4, when this radiation fan is finished when assembling, the wheel hub 21 of this impeller 2 is in the axial direction corresponding to the pedestal 13 of this housing 1, the sense cell 31 of this circuit board 3 along housing shaft to bottom end corresponding to the ring magnet 24 of this impeller 2.Moreover the extension part 30 of this circuit board 3 is radially outwards protruded out to outside this wheel hub 21 by this breach 133, and can select on demand only partly to protrude out or all protrude out to outside this wheel hub 21.Moreover this extension part 30 is preferable corresponding to the floor 130 of tool metallic channel a and lead breach b.At this moment, heat-generating electronic elements 32 near small parts on this extension part 30 or all be positioned at the leeward of each blade 23.
When this radiation fan running, the heat-generating electronic elements 32 of this circuit board 3 produces alternating current to this stator pack 14 according to the detection signal of this sense cell 31, makes this stator pack 14 produce alternating magnetic field, rotates to drive this impeller 2.The blade 23 of this impeller 2 drives air-flow immediately by past these exhaust outlet 12 side flow of these wind inlet 11 sides.Because this heat-generating electronic elements 32 to small part is positioned at the leeward of each blade 23, the air-flow that each blade 23 drives can disperse the heat energy that this heat-generating electronic elements 32 produces.Therefore, can effectively avoid the temperature rise of this heat-generating electronic elements 32, can avoid influencing the stability and the rated output power value of these heat-generating electronic elements 32 actions, and then prolong the working life of this radiation fan relatively.Moreover, when the heat-generating electronic elements 32 of this extension part 30 is positioned at the floor 130 of above-mentioned tool metallic channel a, will helps to reduce relatively this heat-generating electronic elements 32 and contact flow-disturbing and the noise that is produced with air-flow, and then increase the using character of this radiation fan.
Please refer to shown in Figure 5, the structure of second embodiment of the invention and first embodiment are basic identical, difference is: second embodiment's circuit board 3 is rounded, this circuit board 3 enlarges the area that protrudes out of this extension part 30 according to product demand, make this extension part 30 protrude out to the close position of this floor 130, so that further this more heat-generating electronic elements 32 is arranged at this extension part 30, and make its part be positioned at the leeward of each blade 23 at least, to carry out efficiently radiates heat.Moreover this circuit board 3 is provided with a joining hole 33 at middle position, so that noose is on the central siphon 131 of this pedestal 13.Therefore, second embodiment not only further increases the radiating efficiency of this heat-generating electronic elements 32, also can promote the assembling reliability of this circuit board 3 simultaneously relatively.
Please refer to shown in Fig. 6,7, the structure of third embodiment of the invention and first embodiment are basic identical, difference is: the 3rd embodiment's circuit board 3 ' is flexible printed wiring board, this circuit board 3 ' is provided with at least one extension part 30 ', a sense cell 31 ' and at least one heat-generating electronic elements 32, on the other hand, this circuit board 3 ' also can be selected for use rigid and combination flexible printed wiring board, for example the main body of this circuit board 3 ' is a rigid printed circuit board, its extension part 30 ' then is a flexible printed wiring board, and vice versa.Because the thickness of flexible printed wiring board is relatively less than the thickness of rigid printed circuit board, so the thickness space that this extension part 30 ' adopts flexible printed wiring board to save can be in order to be provided with the heat-generating electronic elements 32 ' of large-size.In addition, at least one balancing patch 15 also can be set on this circuit board 3 ', this balancing patch 15 can be with to prevent this circuit board 3 ' warpage.This balancing patch 15 is made by permeability magnetic material (for example iron or ferro-alloy), and corresponding to this ring magnet 24.When this impeller 2 rotates, can form a magnetic balanced action power between this balancing patch 15 and the ring magnet 24.Therefore, the 3rd embodiment not only increases the radiating efficiency and the assembling nargin of this heat-generating electronic elements 32, also can promote the rotary balance of this impeller 2 simultaneously relatively.
As mentioned above, be positioned at the scope of this pedestal 13 and wheel hub 21 at the heat-generating electronic elements 32 of commonly using radiation fan, and lack suitable cooling mechanism usually and easily overheated shortcoming such as burn, the present invention protrudes out to the leeward of the blade 23 of this impeller 2 with this circuit board 3 by these pedestal 13 radially outwards, and the air-flow that each blade 23 is guided can be simultaneously in order to dispel the heat to the heat-generating electronic elements 32 on this circuit board 3.Therefore, the present invention can reduce the temperature rise of this heat-generating electronic elements 32 really, and then prolongs the working life of this radiation fan relatively.
Claims (12)
1, a kind of radiation fan, it comprises:
One housing, it is provided with a wind inlet, an air-flow path, an exhaust outlet and a pedestal, and this wind inlet and exhaust outlet lay respectively at two sides of this air-flow path, and this pedestal is located at a side of this air-flow path;
One impeller, rotating being combined on this pedestal, and be provided with a wheel hub and several blades; And
One circuit board, it is carried on this pedestal, and is provided with at least one heat-generating electronic elements, this housing axially on, this heat-generating electronic elements protrudes out to outside the scope of this impeller wheel hub, and is positioned at the leeward of this blade to small part, in order to dispersing the heat energy that this heat-generating electronic elements produces.
2, radiation fan according to claim 1 is characterized in that: described circuit board is rigid printed circuit board, flexible printed wiring board.
3, radiation fan according to claim 1 is characterized in that: described circuit board is provided with at least one extension part, and it is radially outwards protruded out to outside this impeller wheel hub by this circuit board, is provided with a heat-generating electronic elements on this extension part at least.
4, radiation fan according to claim 3 is characterized in that: described heat-generating electronic elements is located at the side of this extension part near this impeller.
5, radiation fan according to claim 1 is characterized in that: described pedestal is provided with a breach that is convexly equipped with this extension part and heat-generating electronic elements at least.
6, radiation fan according to claim 5, it is characterized in that: described pedestal is provided with several floors, each floor is connected between this pedestal and the air-flow path internal face, has a floor at least corresponding to this breach, and this extension part and heat-generating electronic elements are protruded out on this floor.
7, radiation fan according to claim 6 is characterized in that: described pedestal has a floor with a metallic channel and a lead breach at least, and for the power line of this circuit board of guiding, and the breach of this pedestal is corresponding to the floor of this tool metallic channel.
8, radiation fan according to claim 1 is characterized in that: described pedestal is provided with a central siphon and at least one bearing, and this central siphon is located at this pedestal central authorities, and each bearing is placed in this central siphon, combines with this impeller.
9, radiation fan according to claim 1 is characterized in that: described circuit board central authorities are provided with a joining hole that is placed on this pedestal central siphon.
10, radiation fan according to claim 1 is characterized in that: described circuit board is provided with a sense cell at least, establishes a ring magnet in the wheel hub of this impeller in addition, and this sense cell is corresponding to an end of this ring magnet.
11, radiation fan according to claim 1 is characterized in that: described heat-generating electronic elements is transistor or intergrated circuit potted element.
12, radiation fan according to claim 11 is characterized in that: described heat-generating electronic elements is field-effect transistor or metal-oxide semiconductor (MOS).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100020975A CN101008405B (en) | 2006-01-25 | 2006-01-25 | Heat radiation fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100020975A CN101008405B (en) | 2006-01-25 | 2006-01-25 | Heat radiation fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101008405A true CN101008405A (en) | 2007-08-01 |
| CN101008405B CN101008405B (en) | 2010-08-11 |
Family
ID=38696992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006100020975A Active CN101008405B (en) | 2006-01-25 | 2006-01-25 | Heat radiation fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101008405B (en) |
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| CN102086876A (en) * | 2009-12-03 | 2011-06-08 | 鸿富锦精密工业（深圳）有限公司 | Fan module and heat radiating device using same |
| CN101728342B (en) * | 2008-10-24 | 2011-09-21 | 晶致半导体股份有限公司 | Control module structure of heat radiating fan |
| CN102207095A (en) * | 2010-03-29 | 2011-10-05 | 建准电机工业股份有限公司 | Fan |
| CN102207096A (en) * | 2010-03-30 | 2011-10-05 | 建准电机工业股份有限公司 | Radiating fan |
| CN101871470B (en) * | 2009-04-21 | 2013-02-13 | 深圳兴奇宏科技有限公司 | Fan wheel structure and manufacturing method thereof |
| CN103200995A (en) * | 2010-09-01 | 2013-07-10 | 3M创新有限公司 | Compact scroll fan assembly |
| CN106549523A (en) * | 2015-09-16 | 2017-03-29 | 建准电机工业股份有限公司 | The motor and its axle fitting of unmanned vehicle |
| CN109257895A (en) * | 2018-11-22 | 2019-01-22 | 珠海格力电器股份有限公司 | Hidden storage assembly of power cord and thermantidote |
| WO2019024410A1 (en) * | 2017-07-31 | 2019-02-07 | 郑州云海信息技术有限公司 | Height-adjustable fan fixing structure and height adjustment method for fan module |
| CN110242597A (en) * | 2018-03-07 | 2019-09-17 | 昆山广兴电子有限公司 | Fan |
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| JP2938704B2 (en) * | 1993-03-19 | 1999-08-25 | 富士通株式会社 | Integrated circuit package |
| FR2767560B1 (en) * | 1997-08-19 | 1999-11-12 | Aerospatiale | NOISE REDUCTION ASSEMBLY FOR AN AIRCRAFT TURBOREACTOR |
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| CN2355152Y (en) * | 1998-03-27 | 1999-12-22 | 建准电机工业股份有限公司 | Casing bottom of heat releasing fan |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101728342B (en) * | 2008-10-24 | 2011-09-21 | 晶致半导体股份有限公司 | Control module structure of heat radiating fan |
| CN101871470B (en) * | 2009-04-21 | 2013-02-13 | 深圳兴奇宏科技有限公司 | Fan wheel structure and manufacturing method thereof |
| CN102086876A (en) * | 2009-12-03 | 2011-06-08 | 鸿富锦精密工业（深圳）有限公司 | Fan module and heat radiating device using same |
| CN102207095A (en) * | 2010-03-29 | 2011-10-05 | 建准电机工业股份有限公司 | Fan |
| CN102207096B (en) * | 2010-03-30 | 2013-09-04 | 建准电机工业股份有限公司 | Radiating fan |
| CN102207096A (en) * | 2010-03-30 | 2011-10-05 | 建准电机工业股份有限公司 | Radiating fan |
| US9127691B2 (en) | 2010-09-01 | 2015-09-08 | 3M Innovative Properties Company | Compact scroll fan assembly |
| CN103200995B (en) * | 2010-09-01 | 2015-07-01 | 3M创新有限公司 | Compact scroll fan assembly |
| CN103200995A (en) * | 2010-09-01 | 2013-07-10 | 3M创新有限公司 | Compact scroll fan assembly |
| US9481424B2 (en) | 2010-09-01 | 2016-11-01 | 3M Innovative Properties Company | Compact scroll fan assembly |
| CN106549523A (en) * | 2015-09-16 | 2017-03-29 | 建准电机工业股份有限公司 | The motor and its axle fitting of unmanned vehicle |
| WO2019024410A1 (en) * | 2017-07-31 | 2019-02-07 | 郑州云海信息技术有限公司 | Height-adjustable fan fixing structure and height adjustment method for fan module |
| US11041509B2 (en) | 2017-07-31 | 2021-06-22 | Zhengzhou Yunhai Information Technology Co., Ltd. | Height-adjustable fan fixing structure and height adjustment method for fan module |
| CN110242597A (en) * | 2018-03-07 | 2019-09-17 | 昆山广兴电子有限公司 | Fan |
| CN109257895A (en) * | 2018-11-22 | 2019-01-22 | 珠海格力电器股份有限公司 | Hidden storage assembly of power cord and thermantidote |
| CN109257895B (en) * | 2018-11-22 | 2024-02-06 | 珠海格力电器股份有限公司 | Power cord hidden storage assembly and cooling fan |
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| CN101008405B (en) | 2010-08-11 |
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| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20070801 Assignee: Kunshan Guangxing Electronics Co., Ltd. Assignor: Jianzhun Electric Motor Industry Co., Ltd. Contract record no.: 2013990000343 Denomination of invention: Back flow free low-noise radiation fan for computer Granted publication date: 20100811 License type: Common License Record date: 20130625 |
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Address after: The new Taiwan China Ya Lu Kaohsiung City No. 30 Lane 296 Patentee after: Jianzhun Electric Motor Industry Co., Ltd. Address before: Are China Taiwan Lingya Kaohsiung No. 120 12 floor 1 Patentee before: Jianzhun Electric Motor Industry Co., Ltd. |
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Application publication date: 20070801 Assignee: Kunshan Guangxing Electronics Co., Ltd. Assignor: Jianzhun Electric Motor Industry Co., Ltd. Contract record no.: 2018990000122 Denomination of invention: Back flow free low-noise radiation fan for computer Granted publication date: 20100811 License type: Common License Record date: 20180508 |
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| EE01 | Entry into force of recordation of patent licensing contract |