CN201219230Y - External pole type fan - Google Patents
External pole type fan Download PDFInfo
- Publication number
- CN201219230Y CN201219230Y CNU2008201310128U CN200820131012U CN201219230Y CN 201219230 Y CN201219230 Y CN 201219230Y CN U2008201310128 U CNU2008201310128 U CN U2008201310128U CN 200820131012 U CN200820131012 U CN 200820131012U CN 201219230 Y CN201219230 Y CN 201219230Y
- Authority
- CN
- China
- Prior art keywords
- base
- magnetic
- type fan
- stator unit
- pole type
- 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.)
- Expired - Fee Related
Links
- 241000883990 Flabellum Species 0.000 claims description 32
- 230000005855 radiation Effects 0.000 claims description 3
- 241001075561 Fioria Species 0.000 abstract 1
- 230000005284 excitation Effects 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
- F04D25/066—Linear Motors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Brushless Motors (AREA)
Abstract
An exterior pole type fan includes a stator unit and a rotor unit, wherein the stator unit includes a base, a supporting seat provided on the base, and at least one magnetic pole provided on the base; the rotor unit includes a hub sleeved on the supporting seat, a plurality of fan leaves extending outward from the hub, and a magnetic conduction piece sleeved on the fan leaves; each fan leaf is provided with main leaf segment flatly extending outward from the hub, and an accessory leaf segment extending outward and upward from the upper end of the most external side of the main leaf segment. Because the accessory leaf segment extends outward and upward from the upper end of the most external side of the main leaf segment, the accessory leaf segment will not be limited by the design position of the magnetic conduction piece and magnetic pole, which can effectively expand the front area of the fan leaves and can enhance the air volume and wind pressure of the exterior pole type fan.
Description
[technical field]
The utility model relates to a kind of fan, particularly relates to a kind of external pole type fan.
[background technology]
Consult Fig. 1, general external pole type fan 1 includes a base 11, a rotor 12 of being located on this base 11, and magnetic pole 13 of being located on this base 11, wherein, this base 11 has a fixed axis 111, and this rotor 12 has a wheel hub 121 of being located on this fixed axis 111, multi-disc is located at the flabellum 122 of these wheel hub 121 outer rims, and magnet ring 123 that is located on described flabellum 122 outer peripheral edges, by with behind these magnetic pole 13 energization excitations, the magnet ring 123 that drives this rotor 12 with these magnet ring 123 generation magnetic repulsions rotates, and then 122 rotations of interlock flabellum.
But, because these magnet ring 123 outsides are provided with magnetic pole 13, make the path length of this magnet ring 123 must not surpass this magnetic pole 13, this magnet ring 123 is to be located on described flabellum 122 outer peripheral edges again, cause the lateral space of 122 energy infiltration and developments of described flabellum also to be lived by the big or small institute framework of this magnet ring 123, therefore, described flabellum 122 is subjected to this magnetic pole 13 and magnet ring 123 structural restrictions, can't promote its air quantity and blast effectively by the front face area that extends laterally described flabellum 122.
[utility model content]
The purpose of this utility model is to provide a kind of can increase fan blade area, promotes the external pole type fan of blast and air quantity.
For achieving the above object, the utility model external pole type fan comprises a stator unit and a rotor unit.
This stator unit comprises that a base, one be located at magnetic pole, a slice on the supporting seat of this base, the base that at least one is arranged on this stator unit and be electrically connected this magnetic pole and be arranged on circuit board on this base, and a sensing element that is electrically connected this circuit board.
This rotor unit comprises a wheel hub on the supporting seat that can be set in this stator unit rotationally, the flabellum that multi-disc is extended to external radiation from this wheel hub, and magnetic conductive part that is located on described flabellum, wherein, each sheet flabellum has a main lobe portion from the outside straight extension of this wheel hub, and one ora terminalis is outwards and the accessory lobes portion that is inclined upwardly and extends on the outermost of this main lobe portion, this is main, accessory lobes portion works in coordination and is formed with a short slot relative with this base, be arranged in this short slot and ring set is fixed in the main lobe subordinate ora terminalis of described flabellum for this magnetic conductive part, the magnetic pole of this stator unit then is that correspondence is arranged on this magnetic conductive part outside and is positioned at this accessory lobes subordinate side.
The magnetic that the sensing element of this stator unit is detected the magnetic conductive part of this rotor unit changes, and controls this magnetic pole energization excitation by this circuit board, drives the magnetic repulsion that this magnetic conductive part rotates to produce one.
Effect of the present utility model is, accessory lobes portion by each sheet flabellum is the outside and extension that is inclined upwardly of ora terminalis on the outermost of this main lobe portion, and not limited to by the design attitude of this magnetic conductive part and magnetic pole, and then can expand the front face area of flabellum effectively, improve the air quantity and the blast of this external pole type fan.
[description of drawings]
Fig. 1 is a side cutaway view, and general external pole type fan is described.
Fig. 2 is a three-dimensional exploded view, and first preferred embodiment of the utility model external pole type fan is described.
Fig. 3 is a side cutaway view, and the structure of this first preferred embodiment is described.
Fig. 4 is a three-dimensional exploded view, and second preferred embodiment of the utility model external pole type fan is described.
Fig. 5 is a side cutaway view, and the structure of this second preferred embodiment is described.
[embodiment]
Below by preferred embodiment and accompanying drawing the utility model external pole type fan is elaborated.
Before the utility model is described in detail, be noted that in the following description similar elements is to represent with identical numbering.
Consult Fig. 2,3, first preferred embodiment of the utility model external pole type fan 2 comprises a stator unit 3, and a rotor unit 5.
This stator unit 3 comprises that a base 31, one be located at the supporting seat 32 of this base 31, magnetic pole 33, a slice that is arranged on this base 31 and be electrically connected this magnetic pole 33 and be arranged on circuit board 34 on this base 31, and sensing element 35 that is electrically connected this circuit board 34, wherein, this supporting seat 32 has one from these base 31 upwardly extending fixed axis 321, and a bearing 322 that is nested with on fixed axis 321.
This rotor unit 5 comprises a wheel hub 51, the flabellum 52 that multi-disc is extended to external radiation from this wheel hub 51 on the bearing 322 that can be set in this supporting seat 32 rotationally, and a magnetic conductive part 53 that is located on described flabellum 52.
Consult Fig. 3, each flabellum 52 has a main lobe portion 521 from these wheel hub 51 outside straight extensions, and one on the outermost of this main lobe portion 521 ora terminalis towards extending away from this base 31 and the direction of wheel hub 51 and acclivitous accessory lobes portion 522, this major and minor leaf portion 521,522 works in coordination and is formed with a short slot 523 relative with this base 31, is arranged in this short slot 523 and ring set is fixed in 521 times ora terminalis of main lobe portion of described flabellum 52 for this magnetic conductive part 53.
In addition, 33 of the magnetic poles of this stator unit 3 are to be positioned at these magnetic conductive part 53 outsides and to be positioned at this accessory lobes subordinate side, and this magnetic conductive part 53 is the annular magnet that adopts as shown in Figure 2 in the present embodiment, because the structure and the function of annular magnet are that general industry can be understood, can utilize gummed or other modes to be located in the main lobe portion 521 of described flabellum 52, not repeat them here.
According to above-mentioned framework, when the circuit board 34 of this stator unit 3 is switched on conductings, this sensing element 35 is the magnetic variations by this magnetic conductive part 53 of induction, utilizing this circuit board 34 to control these magnetic pole 33 energization excitations and produce magnetic with this magnetic conductive part 53 repels each other, and then order about this magnetic conductive part 53 and rotate, and the wheel hub 51 of this rotor unit 5 of interlock is that the center drives described flabellum 52 rotations with the fixed axis 321 of this supporting seat 32.
So the utility model external pole type fan 2 in design, because the accessory lobes portion 522 of each sheet flabellum 52 is outside and extensions that are inclined upwardly of ora terminalis on the outermost of this main lobe portion 521, change flabellum in the past because of extending laterally the design attitude of the magnetic pole 13 that is subject to as shown in Figure 1 and magnet ring 123, and can't effectively promote the awkward situation of the front face area of flabellum, therefore, the accessory lobes portion 522 of being extended by each flabellum 52 main lobe portion 521, and then lateral magnification front face area effectively, make this external pole type fan 2 when start, significantly promote its air quantity and blast.
Consult Fig. 4,5, second preferred embodiment of the utility model external pole type fan 2 is identical with this first preferred embodiment haply, all comprises a stator unit 3, and a rotor unit 5.
Place inequality is, this stator unit 3 includes four magnetic poles 33 that are arranged on this base 31, when these circuit board 34 energising conductings drive described magnetic pole 33 energization excitations, and then produce the magnetic repulsion corresponding with this magnetic conductive part 53, and drive described flabellum 52 rotations, therefore, present embodiment is not merely able to promote air quantity and blast, can also utilize the magnetic pole 33 of four different directions, the stability when improving its rotation in these magnetic conductive part 53 generation magnetic force mutual exclusions accordingly.
Conclude above-mentioned, external pole type fan 2 of the present utility model, accessory lobes portion 522 by each sheet flabellum 52 is outside and extensions that are inclined upwardly of ora terminalis on the outermost of this main lobe portion 521, and are the 521 times ora terminalis of main lobe portion that are located on described flabellum 52 simultaneously with this magnetic conductive part 53, and make this magnetic pole 33 be arranged at this accessory lobes portion 522 belows, make the expansion of flabellum 52 extend unrestricted, and then can expand the front face area of flabellum 52 effectively, improve the air quantity and the blast of this external pole type fan, so can reach the purpose of this utility model really.
Claims (4)
1. external pole type fan, comprise a stator unit, and rotor unit, this stator unit comprises that a base, one are located at the supporting seat of this base, at least one is arranged on magnetic pole, a slice on this base and is electrically connected this magnetic pole and is arranged on circuit board on this base, and sensing element that is electrically connected this circuit board, this rotor unit comprises a wheel hub, the flabellum that multi-disc is extended to external radiation from this wheel hub on the supporting seat that can be set in this stator unit rotationally, and a magnetic conductive part that is located on described flabellum, it is characterized in that:
Each sheet flabellum has a main lobe portion from the outside straight extension of this wheel hub, and one ora terminalis is outwards and the accessory lobes portion that is inclined upwardly and extends on the outermost of this main lobe portion, this major and minor leaf portion works in coordination and is formed with a short slot relative with this base, be arranged in this short slot and ring set is fixed in the main lobe subordinate ora terminalis of described flabellum for this magnetic conductive part, the magnetic pole of this stator unit then is that correspondence is arranged on this magnetic conductive part outside and is positioned at this accessory lobes subordinate side.
2. external pole type fan as claimed in claim 1 is characterized in that:
The supporting seat of this stator unit has one from the upwardly extending fixed axis of this base, and a bearing that is nested with on fixed axis.
3. external pole type fan as claimed in claim 2 is characterized in that:
The magnetic conductive part of this rotor unit is an annular magnet.
4. external pole type fan as claimed in claim 3 is characterized in that:
This stator unit includes a plurality of magnetic poles that are arranged on this base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201310128U CN201219230Y (en) | 2008-07-11 | 2008-07-11 | External pole type fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201310128U CN201219230Y (en) | 2008-07-11 | 2008-07-11 | External pole type fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201219230Y true CN201219230Y (en) | 2009-04-08 |
Family
ID=40542064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201310128U Expired - Fee Related CN201219230Y (en) | 2008-07-11 | 2008-07-11 | External pole type fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201219230Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103117625A (en) * | 2011-11-16 | 2013-05-22 | 奇鋐科技股份有限公司 | Fan motor structure |
| CN104295528A (en) * | 2013-07-18 | 2015-01-21 | 日本电产株式会社 | Blower fan and electronic device |
| CN112096632A (en) * | 2019-06-17 | 2020-12-18 | 莱维特朗尼克斯有限责任公司 | Fan with cooling device |
-
2008
- 2008-07-11 CN CNU2008201310128U patent/CN201219230Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103117625A (en) * | 2011-11-16 | 2013-05-22 | 奇鋐科技股份有限公司 | Fan motor structure |
| CN104295528A (en) * | 2013-07-18 | 2015-01-21 | 日本电产株式会社 | Blower fan and electronic device |
| CN112096632A (en) * | 2019-06-17 | 2020-12-18 | 莱维特朗尼克斯有限责任公司 | Fan with cooling device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090408 Termination date: 20170711 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |