CN2479677Y - DC brushless fan with venthole - Google Patents
DC brushless fan with venthole Download PDFInfo
- Publication number
- CN2479677Y CN2479677Y CN 01209648 CN01209648U CN2479677Y CN 2479677 Y CN2479677 Y CN 2479677Y CN 01209648 CN01209648 CN 01209648 CN 01209648 U CN01209648 U CN 01209648U CN 2479677 Y CN2479677 Y CN 2479677Y
- Authority
- CN
- China
- Prior art keywords
- fan
- rotor
- housing
- stator
- brush
- 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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Abstract
A direct current brushless fan with air-vents relates to the direct current brushless fan field, in particular to a direct current brushless fan with air-vents. The technical project lies in that side holes are arranged on a side wall of a shell body, and front holes are arranged on a windward side of the front end of a rotor. The utility model has simple structure and small cubage, and can carry away substantive heat produced during the rotating process of the fan, increase the air flow of the fan and prolong the service life of the fan.
Description
The utility model relates to brush DC fan technical field, refers in particular to a kind of brush DC fan that has ventilation hole.
Along with the fast development of computer industry, the heating of all kinds of electronic devices and components and heat dissipation problem are also given prominence to important more.With the power source of brush DC fan, widely adopt at current electronic technology field as heat radiation.Because it is simple in structure, volume is little, and can solve the heating and the heat dissipation problem of electronic devices and components efficiently, thereby extensively is subjected to electronics circle personage's favor.But, various brush DC fans on sale in the market, when solving the cooling electronic component problem, but can not solve the heat dissipation problem of self, be difficult to a large amount of heats that the stator core coil is produced are distributed very soon owing to sealing such as the zone between stator and the rotor.These a large amount of heats that can not distribute very soon will cause the temperature of fan too high, cause that bearing oil is dried, bearing lubrication is bad, thereby rotation speed of the fan reduces, and will cause fan to stop operating when serious even cause the iron-core coil on the stator to burn.So all kinds of brush DC fans of Xiao Shouing all fail to properly settle the problem of fan life weak point, functional lability in the market.
The purpose of this utility model is to provide a kind of brush DC fan that can take away the band ventilation hole of the heat that fan self produces.
The utility model is achieved by the following technical solution: the appropriate position at rotor front end wind surface offers preceding hole, with housing that stator is fixedlyed connected on offer side opening.Preceding hole is an axially extending bore, and side opening is a radial direction through hole.
The utility model is simple in structure, volume is little, can give out the heat that fan self produces, and improves the useful life of fan, also can improve the flow of fan simultaneously.
Below in conjunction with accompanying drawing the utility model is further specified:
Accompanying drawing 1 is the utility model three-dimensional exploded view
Accompanying drawing 2 is the utility model drawing in side sectional elevation
See accompanying drawing 1,2, the utility model comprises housing 1, stator 2, rotor 3 and pcb board 4, and housing 1 is fixedlyed connected with stator 2, and pcb board 4 is fixed on the housing 1, and rotor 3 is enclosed between stator 2 and the housing 1.Offer side opening A on the sidewall of housing 1, side opening A is a radial direction through hole; Front end wind surface place at rotor 3 offers preceding hole B, and preceding hole B is an axially extending bore.
When using the utility model, rotor 3 rotates after energized, and the flabellum on the rotor 3 drives the air flows between rotor 3 and the housing 1.Because rotor 3 front end wind-engaging places offer preceding hole B, offer side opening A on the sidewall of housing 1, taken away a large amount of heats that produce between stator 2 and the rotor 3 by the air that preceding hole B and side opening A enter, increased simultaneously and flow through air mass flow of the present utility model.
Claims (3)
1. be with the brush DC fan of ventilation hole, comprise: housing (1), stator (2), rotor (3), pcb board (4), housing (1) is fixedlyed connected with stator (2), pcb board (4) is fixed on the housing (1), rotor (3) is inserted between housing (1) and the stator (4), it is characterized in that: on the sidewall of housing (1), offer side opening (A), offer preceding hole (B) at the front end wind surface place of rotor (3).
2. the brush DC fan of band ventilation hole according to claim 1 is characterized in that: described side opening (A) is a radial direction through hole.
3. the brush DC fan of band ventilation hole according to claim 1 is characterized in that: described preceding hole (B) is an axially extending bore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01209648 CN2479677Y (en) | 2001-03-30 | 2001-03-30 | DC brushless fan with venthole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01209648 CN2479677Y (en) | 2001-03-30 | 2001-03-30 | DC brushless fan with venthole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2479677Y true CN2479677Y (en) | 2002-02-27 |
Family
ID=33629383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01209648 Expired - Fee Related CN2479677Y (en) | 2001-03-30 | 2001-03-30 | DC brushless fan with venthole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2479677Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100374734C (en) * | 2004-09-15 | 2008-03-12 | 台达电子工业股份有限公司 | Forced radiator for motor |
| CN101106300B (en) * | 2006-07-10 | 2010-09-29 | 台达电子工业股份有限公司 | Heat dispersion fan |
-
2001
- 2001-03-30 CN CN 01209648 patent/CN2479677Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100374734C (en) * | 2004-09-15 | 2008-03-12 | 台达电子工业股份有限公司 | Forced radiator for motor |
| CN101106300B (en) * | 2006-07-10 | 2010-09-29 | 台达电子工业股份有限公司 | Heat dispersion fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |