CN2864167Y - Dust-proof noise reduction DC fan - Google Patents
Dust-proof noise reduction DC fan Download PDFInfo
- Publication number
- CN2864167Y CN2864167Y CN 200520121049 CN200520121049U CN2864167Y CN 2864167 Y CN2864167 Y CN 2864167Y CN 200520121049 CN200520121049 CN 200520121049 CN 200520121049 U CN200520121049 U CN 200520121049U CN 2864167 Y CN2864167 Y CN 2864167Y
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- Prior art keywords
- fan
- bearing
- noise
- dust control
- noise absorption
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- Expired - Fee Related
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Abstract
A dustproof and noise-reduction DC fan, contains: an outer frame seat of fan equipped with a bearing mounting tube, a stator and a rotor equipped with a vane; a bearing is equipped inside the mounting tube of the fan outer frame seat for the fan blade to support rotation. It is characterized in that the tube opening end is equipped with a dustproof and noise-reduction cover that can close it. The dustproof and noise-reduction DC fan is scientific in design and simple and reasonable in structure. It overcomes the ubiquitous defects of the existing products of the same kind by adding a small cover that may close the bearing chamber without changing the structures of the existing products. The dustproof and noise-reduction cover minimizes the area and chance of dust entering the bearing chamber of the tube, and at the same time, it reduces the leakage and volatilization of the lubricating grease inside the bearing to make the grease volatized by bearing during the operation of fan flow back into the bearing chamber, thus ensuring a good environment for the operation of bearing; in addition, the dustproof and noise-reduction cover closing over the tube opening end may obstruct the spreading of noise arising from the rotating and rubbing of bearing and axle center, thus realizing the reduction of noise.
Description
Technical field
The utility model relates to DC fan, especially a kind of dust control and noise absorption DC fan.
Background technique
DC fan is a kind of ventilation and heat configuration that is widely used in various computers, electronics, electrical equipment, communication and automatic office equipment.Existing DC fan is made up of the outer skeleton frame 1 of fan, stator 2, rotor 3 and the flabellum 4 that is installed on the rotor 3 usually, and the outer skeleton frame 1 of fan is typically provided with pipe 5 (see figure 1)s that are used for bearing 7 installations of support flabellum axle 6 rotations.The running environment of bearing will directly influence the working life of fan.The pipe end that existing DC fan is used for Bearing Installation is generally freely opens shape, bearing face is exposed in the air, it is lost that the fan inner high temperature that produces in service makes the lubricant grease that spreads upon on the bearing be easy to volatilization, and the while dust in air is also invaded bearing easily and polluted oil.Scattering and disappearing or polluting of lubricant oil not only can increase fan operation surface friction drag, increases the operation noise, and can reduce the normal service life of fan.
Summary of the invention
The purpose of this utility model is the deficiency that exists at above-mentioned DC fan, provides a kind of and both can stop in the air dust to be invaded to pollute bearing running environment and reduce lubricant oil volatilization in the bearing, can reduce the dust control and noise absorption DC fan of fan operation noise again.
The utility model dust control and noise absorption DC fan, comprise: be provided with fan outer skeleton frame, the stator of pipe in the Bearing Installation and be provided with the rotor of flabellum, the bearing that is used for support flabellum and axle center rotation is housed in the middle pipe of the outer skeleton frame of fan, it is characterized in that: the nose end of middle pipe is equipped with one can be with the dust control and noise absorption lid of its sealing.
Described dust control and noise absorption lid is annular bowl structure, and the through hole that supplies the flabellum shaft extension to go out is offered at dust control and noise absorption lid center; The bowl-shape dust control and noise absorption of annular lid rely on its rim of a bowl be placed in the pipe mouth of pipe, be installed in the flabellum of flabellum axle head among the spindle seat end be butted on the dust control and noise absorption lid.
The utility model dust control and noise absorption DC fan design science, simple and reasonable for structure.It is on the basis of not changing the existing product structure, and increasing by one can promptly overcome the ubiquitous defective of existing like product with the little small cover of bearing bore sealing.Dust control and noise absorption lid has not only reduced the pollution of dust centering pipe inner bearing running environment in the air, and the leaking or volatilize of pipe inner bearing lubricant grease in can reducing simultaneously can be guaranteed the good running environment of bearing; The dust control and noise absorption lid of pipe nose end also can intercept bearing and the noise that the flabellum axle cooperates operation friction to produce in being sealed on, and realizes the purpose of noise reduction.
The concrete structure of the utility model dust control and noise absorption DC fan is provided in detail by the following drawings and embodiment.
Description of drawings
Fig. 1 is existing structure of direct current fan schematic representation;
Fig. 2 is a dust control and noise absorption structure of direct current fan schematic representation;
Fig. 3 is the dust control and noise absorption lid structural representation of dust control and noise absorption DC fan shown in Figure 2.
Embodiment
Embodiment: the structure that can be clear that the dust control and noise absorption DC fan from Fig. 2 is identical with existing like product, forms by the outer skeleton frame 1 of the fan that is provided with in the Bearing Installation pipe 5, stator 2, rotor 3 and the flabellum 4 that is installed on the rotor 3, be provided with the bearing 7 that is used for the 6 supporting rotations of flabellum axle in the middle pipe 5 of the outer skeleton frame 1 of described fan.The mouth of pipe of middle pipe 5 is equipped with dust control and noise absorption lid 8, and described dust control and noise absorption lid 8 is annular bowl structure, and dust control and noise absorption covers 8 centers offers through hole 9 (see figure 3)s of stretching out for flabellum axle 6; Dust control and noise absorption lid 8 rely on its rim of a bowl and middle pipe 5 mouths of pipe to be nested to cooperate be installed in pipe 5 ends, be installed in the flabellum 4 of flabellum axle 6 ends among spindle seat 10 ends be butted on dust control and noise absorption lid 8, cover 8 with the prevention dust control and noise absorption and move axially.6 on the central through bore 9 of described dust control and noise absorption lid 8 and flabellum axle are for movingly.
Above content is in conjunction with concrete preferred implementation, to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.Under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to the scope of patent protection that the utility model is determined by claims of being submitted to.
Claims (2)
1, a kind of dust control and noise absorption DC fan comprises: be provided with fan outer skeleton frame, the stator of pipe in the Bearing Installation and be provided with the rotor of flabellum; Be provided with the bearing that is used for flabellum axle supporting rotation in the middle pipe of the outer skeleton frame of fan, it is characterized in that: the nose end of middle pipe is equipped with one can be with the dust control and noise absorption lid of its sealing.
2, dust control and noise absorption DC fan according to claim 1 is characterized in that: described dust control and noise absorption lid is annular bowl structure, and the through hole that supplies the flabellum shaft extension to go out is offered at dust control and noise absorption lid center; The bowl-shape dust control and noise absorption of annular lid rely on its rim of a bowl be placed in the pipe mouth of pipe, be installed in the flabellum of flabellum axle head among the spindle seat end be butted on the dust control and noise absorption lid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520121049 CN2864167Y (en) | 2005-12-29 | 2005-12-29 | Dust-proof noise reduction DC fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520121049 CN2864167Y (en) | 2005-12-29 | 2005-12-29 | Dust-proof noise reduction DC fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2864167Y true CN2864167Y (en) | 2007-01-31 |
Family
ID=37676619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520121049 Expired - Fee Related CN2864167Y (en) | 2005-12-29 | 2005-12-29 | Dust-proof noise reduction DC fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2864167Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011035636A1 (en) * | 2009-09-25 | 2011-03-31 | Liu Ching-Tang | Non-contact dust-proof structure for heat dissipating fan |
| CN103557171A (en) * | 2013-10-24 | 2014-02-05 | 姚立猛 | Self-balancing fan device |
-
2005
- 2005-12-29 CN CN 200520121049 patent/CN2864167Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011035636A1 (en) * | 2009-09-25 | 2011-03-31 | Liu Ching-Tang | Non-contact dust-proof structure for heat dissipating fan |
| CN103557171A (en) * | 2013-10-24 | 2014-02-05 | 姚立猛 | Self-balancing fan device |
| CN103557171B (en) * | 2013-10-24 | 2015-11-18 | 姚立猛 | Self balancing blower fan apparatus |
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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 |