CN102536858B - Fan - Google Patents
Fan Download PDFInfo
- Publication number
- CN102536858B CN102536858B CN201010601769.0A CN201010601769A CN102536858B CN 102536858 B CN102536858 B CN 102536858B CN 201010601769 A CN201010601769 A CN 201010601769A CN 102536858 B CN102536858 B CN 102536858B
- Authority
- CN
- China
- Prior art keywords
- fan
- wall
- enclosing cover
- circuit board
- containing space
- Prior art date
- 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.)
- Active
Links
Abstract
The present invention discloses a kind of fan, and it comprises an impeller, a motor, fan frame, a circuit board and an enclosing cover.This motor is in order to drive this vane rotary, this fan frame this impeller accommodating and this motor, and this fan frame has a containing space, it is jointly limited by the wall of two air inlet/outlet sides, a shaft orientation flowing channel outer wall and dual-side wall and forms, this circuit board is placed in this containing space, and this enclosing cover is covered on this containing space.
Description
Technical field
The present invention relates to a kind of fan, particularly relate to a kind of fan with new-type fan frame structure.
Background technique
Along with the function of electronic product promotes with running speed, the heat energy that electronic product produces when operating relatively increases, and in order to maintain the normal operation of electronic product, prior art utilizes fan as sink, dispelled the heat by air-flow forced, make electronic product maintain normal operating temperature.
Refer to Fig. 1, it is traditional fan structure schematic diagram.Traditional fan 1 utilizes circuit board 123 to drive the magnetic pole current direction of stator structure 122 that rotor structure 121 is rotated, and then impeller 11 rotates.Because the usefulness of electronic product now and microminiaturized demand promote, therefore, the demand of heat radiation also relatively improves.Such as, in server system, because servomechanism performance requirement constantly promotes, but board space there is no obvious expansion, the system thermal impedance of making significantly promotes, and thus causes fan antipyreticly to increase to two series connection utilizations from single and carry out efficiently radiates heat, so certainly will cause the double lifting of fan cost.In view of this, how to improve the heat dissipation of single fan, be that industrial circle endeavours one of problem solved all the time.
In the prior art, by improving the rotating speed of fan to promote the usefulness of fan, but this kind of design needs rotate with drive motor with larger electric current usually, in other words, needs a greater number or the larger electronic component of volume carrys out drive motor rotation.Therefore, the configuration space of electronic component is configured on circuit boards in order to increase electronic component, prior art is strengthened by circuit board with accommodating greater number or the larger electronic component of volume is to increase current load amount, but due to circuit board arrangement generally be mostly be arranged at stator structure 122 motor coiling group below and between motor base 13, if therefore increased circuit plate, the runner of air-flow will certainly be had influence on, make wind flow reduce on the contrary, cannot effectively improve fan usefulness.
Although also there is outside circuit board being arranged at fan frame at present on the market, to avoid affecting fan runner, but this kind of design can cause the monomer volume of fan to increase, make servomechanism to be dispelled the heat or other bodies need change the space matching of airframe systems inside in response to fan volume increases, this will affect the application of client end, therefore market acceptance is not high.Therefore, under the prerequisite of monomer volume not affecting runner and do not increase fan, how increasing the bearing space of circuit board and promote the performance of single fan, real is one of important problem.
Summary of the invention
The object of the present invention is to provide a kind of fan structure promoting single fan performance, it can increase the space of circuit board and the monomer volume not affecting runner and do not increase fan, replaces the utilization of two fans series connection thus, significantly to reduce costs.
For reaching above-mentioned purpose, the invention provides a kind of fan, comprising: an impeller; One motor, in order to drive this vane rotary; One fan frame, this impeller accommodating and this motor, and there is a containing space, it is jointly limited by the wall of two air inlet/outlet sides, a shaft orientation flowing channel outer wall and dual-side wall and forms; One circuit board, is placed in this containing space; And an enclosing cover, be covered on this containing space.
Accompanying drawing explanation
Fig. 1 is traditional fan structure schematic diagram;
Fig. 2 is a kind of fan structure schematic diagram of first embodiment of the invention;
Fig. 3 is a kind of exploded view fanning frame, circuit board and enclosing cover of fan of the present invention;
Fig. 4 is a kind of outer cover structure schematic diagram of the present invention;
Fig. 5 is a kind of fan frame structure schematic diagram of second embodiment of the invention;
Fig. 6 is a kind of fan frame structure schematic diagram of third embodiment of the invention.
Primary component symbol description
1,2: fan 11,21: impeller
121,22: rotor structure 122,23: stator structure
123,25: circuit board 13: motor base
211: wheel hub 212: flabellum
221: rotating shaft 222: magnetic element
231: magnetic pole of the stator 24: fan frame
240,266: radiation hole 241: base
242: central siphon 242a: axis hole
243,244: the wall 245 of air inlet/outlet side: shaft orientation flowing channel outer wall
246,247: dual-side wall 248: circuit board immovable point
249,265: through hole 251: electronic component
252: electric capacity 26: enclosing cover
261: base plate 262,263: side plate
264: extension part 267: break difference structure
268: strengthening rib 27: containing space
28: fix element
Embodiment
Some exemplary embodiments embodying feature & benefits of the present invention describe in detail in the explanation of back segment.Be understood that the present invention can have various changes in different aspects, it neither departs from the scope of the present invention, and explanation wherein and to be shown in be use when explain in essence, and be not used to limit the present invention.
The starting point of the present invention's conception is wished with new-type fan frame structure, under the condition not increasing system space shared by fan, create the circuit board bearing space be more than before, fan can be used under higher current status, and then make single fan can significantly improving performance, reach the utilization that single fan replaces a two fan series connection, allow cost significantly reduce.
Refer to Fig. 2, it is a kind of fan structure schematic diagram of first embodiment of the invention.As shown in the figure, fan 2 of the present invention comprises impeller 21, motor, fan frame 24, circuit board 25 and an enclosing cover 26.Impeller 21 comprises the periphery that a wheel hub 211 and multiple flabellum 212 are located on wheel hub 211, motor comprises rotor structure 22 and a stator structure 23, rotate in order to drives impeller 21, wherein rotor structure 22 comprises rotating shaft 221 and a magnetic element 222, rotating shaft 221 is linked to wheel hub 211, magnetic element 222 is arranged at the internal surface of wheel hub 211, and magnetic element 222 is such as permanent magnet, electromagnet or magnetite.In addition, stator structure 23 comprises multiple magnetic pole of the stator 231, and magnetic pole of the stator 231 is formed by a coil, and the magnetic element 222 of magnetic pole of the stator 231 respective rotor structure is arranged.
Fan frame 24 has base 241 and a central siphon 242.Wherein base 241 is linked to fan frame 24, central siphon 242 to be arranged on base 241 and to have an axis hole 242a, and the rotating shaft 221 of rotor structure is arranged in axis hole 242a, and stator structure 23 is sheathed on central siphon 242, therefore, impeller 21, rotor structure 22 and stator structure 23 are placed in fan frame 24.
Circuit board 25 is arranged at one of fan frame 24 four side portion parallel with shaft orientation flowing channel.Conception of the present invention mainly select to fan four sides beyond frame 24 air inlet/outlet side one of them; hollow out the internal material of this lateral section; form a containing space; in order to circuit board 25 is placed in wherein; cover this containing space with an enclosing cover 26 more afterwards, form a closed circuit board guard space thus.
Refer to Fig. 3, it is the exploded view of the fan frame of fan of the present invention, circuit board and enclosing cover.As shown in the figure, containing space 27 by air inlet/outlet side wall 243,244, shaft orientation flowing channel outer wall 245 jointly to limit with dual-side wall 246,247 and forms.Can design circuit plate immovable point 248 in containing space 27, it extends from shaft orientation flowing channel outer wall 245, can in order to support fixing circuit board 25.
Circuit board 25 is a rigid circuit board, and circuit board 25 is provided with multiple electronic component 251 (being such as inductance, transformer etc.) and the larger electric capacity 252 of volume, wherein electric capacity 252 is arranged at the place that keeps to the side of circuit board 25.A sidewall due to containing space 27 is shaft orientation flowing channel outer wall 245, and it is an arc surface, therefore makes the both sides of containing space 27 form relatively large space, and therefore this space just can utilize to accommodate the electric capacity 252 circuit board 25 with larger volume.In addition, circuit board 25 passes through to be such as that wire or winding displacement (not shown) are electrically connected with the stator structure 23 of motor, to drive the magnetic pole of the stator 231 of stator structure 23.
Enclosing cover 26 roughly becomes U-shaped, comprises a base plate 261 and biside plate 262,263, and its latus inframedium 262,263 is roughly vertical with base plate 261, and the shape of base plate 261 and size roughly the same with the side beyond fan frame 24 air inlet/outlet side.When enclosing cover 26 is covered on containing space 27, be namely combined into a complete fan frame with fan frame 24.Formed because containing space 27 hollows out the internal material of fan frame 24 1 side, therefore the monomer volume of fan can not be increased.Moreover when looking at fan straight by exhaust outlet or wind inlet, the aspect ratio bit of its fan is between scope 0.8 ~ 1.2, and preferably, when the Elongation of fan is 1 to 1, then fanning frame sectional shape is square.
In order to enclosing cover 26 being fastened on fan frame 24, enclosing cover 26 is provided with multiple extension part 264, it is vertical with base plate 261, and extend towards with fan frame 24 bonding position, and there is through hole 265, and fan the through hole 249 that the wall 243,244 of frame 24 in air inlet/outlet side also has corresponding setting, to fix element 28 by one, enclosing cover 26 is fastened on fan frame 24, wherein, this fixing element 28 can be but is not limited to trip or rivet (snap).
Enclosing cover 26 is also provided with multiple radiation hole 266, to be increased the heat radiation of circuit board 25 by natural convection.The position of radiation hole 266 is preferably arranged at base plate 261 and the joint of side plate 262,263, and dust can be avoided directly to drop on circuit board 25.Certainly, the setting position of radiation hole 266 is not limited to shown in Fig. 3, such as, also can be arranged at the periphery of base plate 261.
Due to the setting of side plate 262,263, make the both sides of enclosing cover 26 form the structure of L-type, therefore when being covered on containing space 27, the adhesive strength with fan frame 24 can be increased.Again, can design a break difference structure 267 at the end of side plate 262,263, its correspondence is fanned the dual-side wall 246,247 of frame 24 and arranges, to fasten with the dual-side wall 246,247 of fan frame 24.In addition, the base plate 261 of enclosing cover 26 can arrange multiple strengthening rib 268, in order to increase the structural strength (as shown in Figure 4) of enclosing cover 26.
Refer to Fig. 5 and Fig. 6, it is respectively the fan frame structure schematic diagram of second and third embodiment of the present invention.For strengthening the radiating effect to circuit board 25, the shaft orientation flowing channel outer wall 245 forming containing space 27 can set up radiation hole 240, impeller 21 is rotated, and the part produced is distinguished and admirable flows in containing space 27 through radiation hole 240, dispels the heat to circuit board 25, avoids that circuit board 25 is overheated to be burnt.Wherein, radiation hole 240 can design long strip hole as shown in Figure 5, or multiple corynebacterium holes as shown in Figure 6.Certainly, the form of radiation hole can do different changes or adjustment on demand, therefore is not limited to aforementioned embodiments.
For the fan of 80mm × 80mm × 50mm, structural design of the present invention can make the plane space of fan circuit board and maximum use highly all significantly promote at least 20%, the electric current that single circuit board can be born significantly promotes, and single height h is that the current load amount of the fan of 50mm has reached 7 ~ 8 amperes, be equivalent to the current load amount of a two tandem fan (height overall is 76mm), therefore structural design of the present invention significantly improves the usefulness of single fan, therefore the utilization of two fan series connection can be replaced, allow cost significantly reduce.
In sum, the internal material of one of the side of four beyond air inlet/outlet side mainly hollows out by fan of the present invention, form a containing space, in order to accommodating circuit board in wherein, and be covered on containing space with an enclosing cover, that is containing space is formed in the side of shaft orientation flowing channel in original fan frame space, therefore the space of system shared by fan can not be increased, also runner can not be affected, and improve circuit board bearing space and current load amount, fan can be used under higher current status, and then make single fan can significantly improving performance, therefore single fan can be utilized to replace the utilization of a two fan series connection, cost is allowed significantly to reduce.Moreover, enclosing cover and shaft orientation flowing channel outer wall all can set up radiation hole, enter in containing space with air-guiding, with effectively to heat dissipation for circuit board, avoid that circuit board is overheated to be burnt.
Due to above-mentioned advantage person less than prior art, therefore fan of the present invention has industrial value, files an application in whence in accordance with the law.The present invention must be thought by person skilled in the art Shi Renshi craftsman and for modifying as all, but neither departs from the scope of claim institute for protecting as enclosed.
Claims (9)
1. a fan, comprising:
Impeller;
Motor, in order to drive this vane rotary;
Fan frame, this impeller accommodating and this motor, wherein this fan frame comprises:
Containing space;
The wall of inlet side;
The wall of air side is relative with the wall of this inlet side;
Four side walls, lay respectively between four limits being formed between the wall of this inlet side and the wall of this air side; And
Runner wall, forms the shaft orientation flowing channel that is adapted to this motor and this impeller,
Wherein this containing space is made up of three side walls in the wall of the wall of this inlet side, this air side, this runner wall and this four side walls; And
Circuit board, is placed in this containing space;
Wherein one of these four side walls are enclosing cover, are fixed on two side walls, the wall of this inlet side and the wall of this air side of being separated by separably, with the opening as this containing space.
2. fan as claimed in claim 1, wherein the aspect ratio bit of this fan is between scope 0.8 ~ 1.2.
3. fan as claimed in claim 1, wherein this enclosing cover has multiple radiation hole, by natural convection to increase the heat radiation of this circuit board.
4. fan as claimed in claim 1, wherein this shaft orientation flowing channel outer wall has at least one radiation hole, and the part that this vane rotary is produced is distinguished and admirable to be flowed in this containing space through this radiation hole, to dispel the heat to this circuit board.
5. fan as claimed in claim 1, wherein this enclosing cover is generally u-shaped, and this enclosing cover comprises a base plate and biside plate, and this biside plate is roughly vertical with this base plate.
6. fan as claimed in claim 5, wherein this base plate of this enclosing cover is provided with multiple strengthening rib, in order to increase the structural strength of this enclosing cover.
7. fan as claimed in claim 5, wherein the end of this side plate has a break difference structure, and it is arranged this dual-side wall should fanning frame, to fasten with this dual-side wall of this fan frame.
8. fan as claimed in claim 1, wherein this enclosing cover is fastened on this fan frame by a fixing element by this enclosing cover.
9. fan as claimed in claim 1, wherein have at least one circuit board immovable point in this containing space, it extends from this shaft orientation flowing channel outer wall, fixes this circuit board in order to support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010601769.0A CN102536858B (en) | 2010-12-22 | 2010-12-22 | Fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010601769.0A CN102536858B (en) | 2010-12-22 | 2010-12-22 | Fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102536858A CN102536858A (en) | 2012-07-04 |
| CN102536858B true CN102536858B (en) | 2015-10-28 |
Family
ID=46344603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010601769.0A Active CN102536858B (en) | 2010-12-22 | 2010-12-22 | Fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102536858B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110394A (en) * | 2013-04-18 | 2014-10-22 | 深圳兴奇宏科技有限公司 | Fan structure with external circuit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2215042Y (en) * | 1994-12-03 | 1995-12-13 | 林三原 | Assembling device of radiating fan |
| US6375440B2 (en) * | 1999-09-30 | 2002-04-23 | Fujitsu Limited | Fan unit, fan assembly, and an apparatus comprising the fan assembly |
| CN101175922A (en) * | 2005-05-19 | 2008-05-07 | 惠普开发有限公司 | Cooling fan with external circuit board |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003058796A1 (en) * | 2002-01-11 | 2003-07-17 | Ebm-Papst St. Georgen Gmbh & Co. Kg | Miniature fan or micro-fan |
| US20080124234A1 (en) * | 2006-11-02 | 2008-05-29 | Jaime Echazarreta | Fan tray assembly shaped Venturi |
-
2010
- 2010-12-22 CN CN201010601769.0A patent/CN102536858B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2215042Y (en) * | 1994-12-03 | 1995-12-13 | 林三原 | Assembling device of radiating fan |
| US6375440B2 (en) * | 1999-09-30 | 2002-04-23 | Fujitsu Limited | Fan unit, fan assembly, and an apparatus comprising the fan assembly |
| CN101175922A (en) * | 2005-05-19 | 2008-05-07 | 惠普开发有限公司 | Cooling fan with external circuit board |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102536858A (en) | 2012-07-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101529099B (en) | Serially arranged axial fan | |
| US7021894B2 (en) | Apparatus for cooling of electronic components | |
| CN101307769B (en) | Fan and fan component | |
| US9680340B2 (en) | Electrically rotating machine | |
| CN103362857A (en) | Impeller and fan | |
| US20080101966A1 (en) | High efficient compact radial blower | |
| TWI502134B (en) | Fan | |
| US8579609B2 (en) | Fan and inner rotor motor thereof | |
| US20080277094A1 (en) | Miniature heat-dissipating fan device | |
| US20150369252A1 (en) | High efficiency transverse flux motor fan | |
| CN106545503A (en) | Aerator, motor and correlation technique | |
| US8647051B2 (en) | High efficiency low-profile centrifugal fan | |
| KR101714477B1 (en) | OUTER ROTOR MOTOR WITH A STREAMLINED Blade for POWER OF of Unmanned Aircraft Robot | |
| US20100303652A1 (en) | Miniature heat-dissipating fan device | |
| EP2889543A1 (en) | Air conditioning outdoor unit | |
| CN102536858B (en) | Fan | |
| CN106416014B (en) | Rotating electric machine | |
| CN101338762A (en) | Passive fan | |
| KR20220139151A (en) | Magnetic levitation module for electromagnetic induction hoverboard using axial flow rotor blades | |
| CN104141620A (en) | Axial flow heat dissipating fan and motor size selecting method thereof | |
| CN205013334U (en) | axial induction motor fan | |
| US20140134011A1 (en) | Cooling fan with rotor blade flanges for controlling rotor movement | |
| CN201115231Y (en) | Heat radiation structure for fan motor | |
| CN201180684Y (en) | Radiator fan | |
| CN106292944B (en) | Fan and electronic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |