CN201159211Y - DC brushless water-proof fan - Google Patents
DC brushless water-proof fan Download PDFInfo
- Publication number
- CN201159211Y CN201159211Y CNU2008200787638U CN200820078763U CN201159211Y CN 201159211 Y CN201159211 Y CN 201159211Y CN U2008200787638 U CNU2008200787638 U CN U2008200787638U CN 200820078763 U CN200820078763 U CN 200820078763U CN 201159211 Y CN201159211 Y CN 201159211Y
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- CN
- China
- Prior art keywords
- coupling shaft
- drip
- brush
- proof fan
- proof
- 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
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- Motor Or Generator Frames (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses a direct current brushless water-proof fan, which comprises a rotating portion, a connecting shaft and a fixing portion independent relatively to the rotating portion, the connecting shaft is fixed on the fixing portion, the rotating portion is connected with the connecting shaft, and the rotating portion is located outside the fixing portion and rotates relatively to the fixing portion through the connecting shaft. By utilizing the completely closed electrified fixing portion and the rotation of the relatively independent rotating portion which can rotate relatively to the electrified fixing portion, the moving seal state between the fixing portion and the rotating portion is avoided, thereby enabling liquid to be completely isolated outside the electrified fixing portion. The overall structure of the direct current brushless water-proof fan not only is simple in structure, low in cost and simple in manufacturing technique, but also is fine in stationarity in rotating process and long in service life, and the fine static seal property of the fixing portion enables the direct current brushless water-proof fan to be quite suitable for varieties of damp-proof, moisture-proof and water-proof environments.
Description
Technical field
The utility model relates to a kind of fan, particularly a kind of brush DC drip-proof fan with water-proof function.
Background technique
Fan is a kind of common, electrical equipment of being used to dispel the heat, its structure mainly comprises flabellum, rotor, stator and is comprising the housing of rotor, stator, wherein flabellum directly is connected on the rotor by wheel hub and transmission shaft, and under the effect of charged stator along with rotor rotates together.Because stator and rotor are in same housing, rotor and flabellum transmission shaft and housing in rotary course remain the motive sealing state, if such movable sealing structure is in atmosphere, its structure can satisfy the normal use of fan fully, if and this fan is placed in the liquid, the structural feature of motive sealing then can't effectively stop liquid to penetrate into enclosure interior, and the liquid of infiltration can cause the enclosure interior short circuit, leaks electricity even burn, thereby can't satisfy the use needs.How enlarging the fan applicable scope, improve the structural feature of fan, improve the water-proof performance of fan on the basis that keeps the original good operation performance of fan, is the problem that the utility model need solve.
Summary of the invention
In view of above-mentioned deficiency of the prior art, the utility model aims to provide the brush DC drip-proof fan of a kind of simple in structure, safety, waterproof.
The utility model is achieved through the following technical solutions:
A kind of brush DC drip-proof fan, comprise rotating part, coupling shaft and the standing part relatively independent with rotating part, coupling shaft is fixed on the standing part, and rotating part is connected on the coupling shaft, and it is outer also by the rotation of coupling shaft relatively fixed part that rotating part is positioned at standing part.
Described coupling shaft and standing part are structure as a whole.
Described standing part comprises stator, circuit board and housing, and in stator and the cavity of circuit board fixing seal in housing, stator is connected by lead with extraneous power supply with circuit board and circuit board, and coupling shaft is positioned at the hull outside of stator and housing centerline direction.
The cavity that described stator is arranged in also is filled with packing, and packing is an electron pouring sealant.
Described rotating part comprises rotor, axle sleeve, flabellum and wheel hub, and flabellum is fixed on the wheel hub, and wheel hub is enclosed within on the coupling shaft by axle sleeve, and rotor is fixed on the wheel hub inboard and the position is corresponding with the position of housing inner stator.
Described flabellum and wheel hub are structure as a whole.
Also be provided with the flabellum flap on the housing in the described flabellum outside.
One end of described coupling shaft Upper shaft sleeve also is provided with elastic collar, and the coupling shaft in the elastic collar outside is provided with dust-proof cover.
A kind of brush DC drip-proof fan described in the utility model, utilize airtight fully charged standing part and can rotating relative to charged standing part rotating part that rotate, relatively independent, avoided the motive sealing state between standing part and the rotating part, made liquid be isolated in the outside of charged standing part fully.Its overall structure is simple, with low cost, production technology is simple, adopt axle sleeve transmission design, make that the rotating part rotation process is steady, dynamic balance performance good, strengthened the working life of fan greatly, the static seal that standing part is good makes the utility model be highly suitable for various the needs and uses in protection against the tide, damp proof, the water resistant or waterproof environment.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Be further described below in conjunction with 1 pair of the utility model of accompanying drawing:
A kind of brush DC drip-proof fan described in the utility model, comprise rotating part, coupling shaft 9 and the standing part relatively independent with rotating part, wherein standing part comprises stator 6, circuit board 5 and housing 1, be provided with cavity in the housing 1, stator 6 and circuit board 5 are separately fixed in the cavity, circuit board 5 is positioned at the below of stator 6, cavity is outside by cavity cap 4 and seal ring sealing, the cavity that is arranged at stator 6 also is filled with electron pouring sealant 12, and electron pouring sealant 12 can be isolated stator 6 with the external world fully.Stator 6 is connected by lead with extraneous power supply with circuit board 5 and circuit board 5.Coupling shaft 9 and housing 1 are structure as a whole, and coupling shaft 9 is positioned at housing 1 top of stator 6 and housing 1 centerline direction.
Rotating part comprises rotor 7, axle sleeve 10, flabellum 13 and wheel hub 2, wherein flabellum 13 and wheel hub 2 are structure as a whole, and wheel hub 2 is enclosed within on the coupling shaft 9 by axle sleeve 10, also are provided with elastic collar 3 above coupling shaft 9 Upper shaft sleeves 10, elastic collar 3 can prevent that axle sleeve 10 is loosening, improves connection stability.Coupling shaft 9 tops also are provided with dust-proof cover 11, and dust-proof cover 11 can prevent that extraneous dust from falling into axle sleeve 10 wearing and tearing axle sleeve 10 and coupling shafts 9.The cross section of rotary hub 2 is approximately a M type, and coupling shaft 9 is positioned at the central authorities of M type wheel hub 2, can improve wheel hub 2 stability of rotation like this, reduce flabellum 13 vibrations.Be provided with rotor 7 on wheel hub 2 inboards and housing 1 inner stator 6 corresponding positions, rotor 7 is a permanent magnet.For protection flabellum 13, on the housing 1 in flabellum 13 outsides, also be provided with flabellum flap 8.
After connecting power supply, charged stator 6 promotes rotor 7, rotor 7, wheel hub 2 and flabellum 13 begin rotation by axle sleeve 10 relative coupling shafts 9, because coupling shaft 9 remains static all the time, guaranteed that relatively independent standing part is in the static seal state all the time, liquid that can not infiltrates the proper functioning that influences charged stator 6 and circuit board 5 in the housing 1.And the axle sleeve 10 of M type wheel hub 2 central authorities has increased the area of contact with coupling shaft 9, has improved the stability of flabellum 13 rotation processes when guaranteeing normal transmission, has prolonged the working life of fan.
Claims (9)
1, a kind of brush DC drip-proof fan is characterized in that, comprises rotating part, coupling shaft and the standing part relatively independent with rotating part, and described coupling shaft is fixed on the standing part; Described rotating part is connected on the coupling shaft, and it is outer also by the rotation of coupling shaft relatively fixed part that rotating part is positioned at standing part.
2, a kind of brush DC drip-proof fan according to claim 1 is characterized in that described coupling shaft and standing part are structure as a whole.
3, a kind of brush DC drip-proof fan according to claim 1 and 2, it is characterized in that, described standing part comprises stator, circuit board and housing, in described stator and the cavity of circuit board fixing seal in housing, stator is connected by lead with extraneous power supply with circuit board and circuit board, and coupling shaft is positioned at the hull outside of stator and housing centerline direction.
4, a kind of brush DC drip-proof fan according to claim 3 is characterized in that the cavity that described stator is arranged in also is filled with packing.
5, a kind of brush DC drip-proof fan according to claim 4 is characterized in that, described packing is an electron pouring sealant.
6, a kind of brush DC drip-proof fan according to claim 1 and 2 is characterized in that described rotating part comprises rotor, axle sleeve, flabellum and wheel hub, and described flabellum is fixed on the wheel hub; Described wheel hub is enclosed within on the coupling shaft by axle sleeve; Described rotor is fixed on the wheel hub inboard and the position is corresponding with the position of housing inner stator.
7, a kind of brush DC drip-proof fan according to claim 6 is characterized in that described flabellum and wheel hub are structure as a whole.
8, a kind of brush DC drip-proof fan according to claim 7 is characterized in that, also is provided with the flabellum flap on the housing in the described flabellum outside.
9, a kind of brush DC drip-proof fan according to claim 1 and 2 is characterized in that, an end of described coupling shaft Upper shaft sleeve also is provided with elastic collar, and the coupling shaft in the elastic collar outside is provided with dust-proof cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200787638U CN201159211Y (en) | 2008-01-28 | 2008-01-28 | DC brushless water-proof fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200787638U CN201159211Y (en) | 2008-01-28 | 2008-01-28 | DC brushless water-proof fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201159211Y true CN201159211Y (en) | 2008-12-03 |
Family
ID=40109795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200787638U Expired - Fee Related CN201159211Y (en) | 2008-01-28 | 2008-01-28 | DC brushless water-proof fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201159211Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927566A (en) * | 2016-06-24 | 2016-09-07 | 惠州市金力电机有限公司 | Waterproof brushless fan |
-
2008
- 2008-01-28 CN CNU2008200787638U patent/CN201159211Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927566A (en) * | 2016-06-24 | 2016-09-07 | 惠州市金力电机有限公司 | Waterproof brushless fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081203 Termination date: 20110128 |