CN201433943Y - Dustproof structure for fan - Google Patents
Dustproof structure for fan Download PDFInfo
- Publication number
- CN201433943Y CN201433943Y CN2009201541127U CN200920154112U CN201433943Y CN 201433943 Y CN201433943 Y CN 201433943Y CN 2009201541127 U CN2009201541127 U CN 2009201541127U CN 200920154112 U CN200920154112 U CN 200920154112U CN 201433943 Y CN201433943 Y CN 201433943Y
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- fan
- fan frame
- frame
- oil
- axle center
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses a dustproof structure for a fan, which comprises a rotor, a stator, a fan holder, an oil-containing bearing, and a shaft center, wherein the rotor comprises fan blades, a fan frame and a magnetic frame which is arranged inside the inner side wall of the fan frame and corresponds to the stator, the center of the bottom part of the fan frame is provided with a hole allowing the shaft center to penetrate, the magnetic frame is formed by the combination of a motor shell and a magnetic strip; the stator comprises a coiled silicon steel sheet, a coil wound outside the coiled silicon steel sheet, and a control circuit board having circuit connection with the coil; the center of a fan holder protrudes upwards to form a fan holder middle pipe, the inner wall ring of thefan holder middle pipe is provided with the oil-containing bearing, the outer wall ring of the fan holder middle pipe is provided with the stator, the center of the bearing is provided with an inner hole which corresponds to a hole at the center of the bottom of the fan frame, the shaft center penetrates through the hole at the center of the bottom of the fan frame and is arranged in the inner hole of the oil-containing bearing, and the bottom of the motor shell extends to the center along the bottom of the inner wall of the fan frame to form crossed displacement with the upper end of the fanholder middle pipe. The dustproof structure can achieve the dustproof effect more effectively, and can reduce material and cost for manual processing operation.
Description
Technical field
The utility model belongs to the structure of fan, more specifically relates to a kind of dustproof construction of fan.
Background technique
Utilize fan to dispel the heat and be widely used in electronic equipment industry and the life, the machine operation of fan mainly is to realize with axle center and oil-impregnated bearing.Major requirement for fan is exactly a long service life, low noise when turning round, and to reach long service life, when running low noise of fan, just must keep good matching precision and good lubricating effect between axle center and the oil-impregnated bearing, reduce friction factor and wearing and tearing between axle center and the bearing thus.Therefore, the axle center outside dimension requires relative higher with the processing matching precision of oil-impregnated bearing internal diameter size, in order persistently to keep preferable lubrication effect when turning round, is arranged in axle center and oil-impregnated bearing work simultaneously, when production and assembly processing fan, between axle center and oil-impregnated bearing, be filled with an amount of lubricant oil in addition.The bearing that this kind mechanism fan adopts is an oil-impregnated bearing, is and is called oil-impregnated bearing structure fan.Yet as shown in Figure 1 to Figure 3, the fan structure of prior art is managed to be provided with in 31 ' in the fan frame oil-impregnated bearing 4 ' is installed, and manages 31 ' outer installment in the fan frame stator 2 ' is installed, and axle center 5 ' is placed in the oil-impregnated bearing 4 ' endoporus of managing in the fan frame in 31 '.There are many defectives in existing this oil-impregnated bearing fan technical pattern, major defect is that the size and the matching precision between the oil-impregnated bearing 4 ' size in the axle center 5 ' of oil-impregnated bearing fan requires very high, the wind-force that is produced during fan propeller 1 ' work running makes the external environment condition dust direct from the junction between fan frame 12 ' edge and the fan frame base 32 ' edge easily, enter space 14 ' in the rotor swimmingly, then entering axle center and oil-impregnated bearing running operation point 6 ' locates, dust is once enter the back oil of pollution lubricating oil easily, cause fortune running and lubrication effect between axle center 5 ' and the oil-impregnated bearing 4 ' to be affected, thereby can cause fan propeller 1 ' rotating speed slack-off, stuckly do not change, it is unusual to produce big noise etc. during running.Simultaneously, pillow block face 122 ' contact oil-impregnated bearing 4 ' surface produces noise when preventing rotor 1 ' running, special 5 ' install with pillow block face 122 ' intersection and to place scraper ring 7 ' and do slowly to press isolatedly in the axle center, 5 ' top end buckles into clasp 8 ' and comes pre-preventing rotor 1 ' to come off in the axle center again.So both increase the cost of material of scraper ring 7 ' and clasp 8 ', increased its manufacturing operation operation and producers again.
The model utility content
The purpose of this utility model is: by improving the structure of fan, to reach the dust-tight effect, can reduce material and production process processing personnel's cost again.
For achieving the above object, the technological scheme that the utility model adopted is: a kind of dustproof construction of fan is made of rotor, stator, fan frame, oil-impregnated bearing, axle center; It is characterized in that described rotor comprises flabellum, the fan frame and be built in the fan frame madial wall and with the corresponding magnet frame of stator, fan frame bottom central authorities are provided with one and hold the hole that the axle center is passed, magnet frame is combined by motor shell and magnetic stripe, stator comprises silicon steel sheet, the outside coil that twines of silicon steel sheet reaches and carries out the control circuit board that circuit is connected with coil, fan frame central authorities raise up to form in the fan frame and manage, the inner tube wall ring is established oil-impregnated bearing in the fan frame, pipe outer wall ring is set son in the fan frame, there is the corresponding endoporus in hole with fan frame bottom central authorities in oil-impregnated bearing central authorities, the axle center is passed the hole of fan frame bottom central authorities and is placed in the oil-impregnated bearing endoporus, the motor shell bottom according to fan frame inwall at the bottom of to central authorities extend with the fan frame in the pipe upper end form the dislocation of reporting to the leadship after accomplishing a task.
More excellent, extend to central authorities at the bottom of fanning the frame inwall described motor shell bottom, encircle up to managing in the frame in " L " shape that the corresponding longitudinal axis of external diameter place forms hollow downwards with fan, be set to " 7 " font on the thin-walled of pipe upper-end surface in the fan frame and buckle a little to evagination, " 7 " font in interior ring of " L " shape of motor shell hollow and the fan frame on the pipe is buckled to evagination and has a little been formed the dislocation of reporting to the leadship after accomplishing a task.
More excellent, the edge epirelief of described fan frame base, the inboard disc of epirelief part is set to staircase structural model; Protruding under the fan edge edge, the outside disc of following convex portion is set to staircase structural model; In opposite directions protruding and formation up/down steps formula is intersected dislocation under fan frame base edge epirelief and the fan edge edge.
More excellent, top, described axle center is a spherical, and the axle center is by the oil-impregnated bearing endoporus, and the pipe bottom is tangent in spherical summit, top, axle center and the fan frame.
More excellent, described axle center links into an integrated entity with the edge in the hole of fan frame bottom central authorities.
After adopting technique scheme, its beneficial effect is: motor shell bottom according to fan frame inwall at the bottom of to central authorities extend with the fan frame in the misconstruction design of reporting to the leadship after accomplishing a task that forms of pipe upper end, the dust that can prevent to enter space in the rotor effectively directly enters turn round lubricant oil between operation point and axle center and oil-impregnated bearing of axle center and oil-impregnated bearing.By effectively dustproof, guaranteed the greasy property and the normal operation function of axle center and oil-impregnated bearing, thereby reached the purpose that prolongs fan working life and reduce noise.
In addition, in opposite directions protruding and up/down steps formula that form is intersected the structure of dislocation under fan frame base edge epirelief and the fan edge edge, can prevent effectively that the external environment condition dust from entering space in the rotor directly, swimmingly from the junction of fanning the edge edge and fan between the frame base edge; Come the current direction of control coil by the stator control circuit and change the field pole of silicon steel sheet cylindrical, make the field pole of silicon steel sheet cylindrical and the field pole of the interior circle of rotor magnet frame produce suction and repulsion mutually, utilize the suction and repulsion effect of magnet frame magnetic and stator silicon steel plate, the pipe bottom is tangent and form the vertical point location in the summit that makes top, axle center sphere and the fan frame, running operation point between axle center and the oil-impregnated bearing is tangent place, point of contact, pipe bottom in the summit of top, axle center sphere and fan frame, enclosed construction is adopted in pipe bottom in the fan frame, effectively like this prevents the loss of lubricant oil and entering of ambient dust; Thereby the axle center is connected with the edge in the hole of fan frame bottom central authorities axle center and fan frame is connected as a single entity, the axle center is by the oil-impregnated bearing endoporus, the pipe bottom is tangent in spherical summit, top, axle center and the fan frame, by the axle center pillow block face and oil-impregnated bearing are separated, so just can guarantee that the pillow block face can not contact and collide with oil-impregnated bearing, buckle the structure of the dislocation of reporting to the leadship after accomplishing a task that a little forms again to evagination because of ring in motor shell hollow " L " shape and " 7 " font of fanning pipe upper end in the frame, can effectively prevent coming off of rotor, so just need not scraper ring and clasp in the prior art fan structure, not only saved cost of material but also reduced manufacturing operation operation and personnel's cost.
Description of drawings
Fig. 1 is a conventional type fan structure schematic representation;
Fig. 2 is a conventional type fan structure exploded view;
Fig. 3 is that the conventional type fan is difficult for the dust-tight schematic representation;
Fig. 4 is the utility model fan structure schematic representation;
Fig. 5 is the utility model fan structure exploded view;
Fig. 6 is the utility model fan dustproof construction schematic representation.
Represented corresponding part or the toponym of numeral among the figure:
1. manage outwardly a little 32. fan frame base 321. fan frame base epirelief step spherical 6. axle center, top, 51. axle center, 5. axle center, 4. oiliness bearings, 41. oiliness bearing spaces and the oiliness bearing running operating point 7 ' of buckleing of 311 " 7 " fonts in the space 2. stators 21. silicon steel sheets 22. coils 23. control circuit boards 3. fan framves 31. fan framves in ring 132. magnetic stripes 14. rotors in 122. pillow block faces, 13. magnet frames, 131. motor shell 1311. " L " shapes of rotor 11. flabellums 12. fan frames 121. rotor lower limb lower convex platform rank. scraper ring 8 '. clasp
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
With reference to Fig. 4 to Fig. 6, a kind of dustproof construction of fan is made of rotor 1, stator 2, fan frame 3, oil-impregnated bearing 4, axle center 5.Rotor comprise flabellum 11, fan frame 12 and be built in fan frame 12 madial walls and with the corresponding magnet frame 13 of stator, fan frame 12 bottom center are provided with one and hold the hole that axle center 5 is passed, magnet frame 12 is combined by motor shell 131 and magnetic stripe 132; Stator 2 comprises silicon steel sheet 21, the silicon steel sheet 21 outside coils that twine 22 and carries out the control circuit board 23 that circuit is connected with coil 22; Fan frame 3 central authorities raise up to form in the fan frame and manage 31, and pipe 31 inwall rings are established oil-impregnated bearing 4 in the fan frame, and pipe 31 outer wall rings are set son 2 in the fan frame; Oil-impregnated bearing 4 central authorities be provided with hollow, with fan frame 12 central holes corresponding oil-impregnated bearing 4 endoporus; Axle center 5 is passed the hole of fan frame 12 bottom center and is placed in oil-impregnated bearing 4 endoporus; Extend to central authorities at the bottom of fanning frame 12 inwalls motor shell 131 bottoms, up to the fan frame in the pipe 31 corresponding longitudinal axis of external diameter places form downwards in " L " shape of hollow and encircle 1311, pipe is set to " 7 " font on the 31 upper-end surface thin-walleds and buckles a little 311 to evagination in the fan frame, and " 7 " font of managing 31 upper ends in motor shell 131 hollows " L " shape in ring 1311 and the fan frame is buckled a little to evagination and 311 formed the dislocation of reporting to the leadship after accomplishing a task.The edge epirelief of fan frame base 32, the inboard disc of epirelief part is set to staircase structural model; Protruding under fan frame 12 edges, the outside disc of following convex portion is set to staircase structural model; Fan frame base edge epirelief step 321 and fan edge edge lower convex platform rank 121 are in opposite directions and formation up/down steps formula is intersected dislocation.5 tops, axle center are spherical, and axle center 5 is by oil-impregnated bearing 4 endoporus, and pipe 31 bottoms are tangent in the summit of top, axle center spherical 51 and the fan frame.Axle center 5 links into an integrated entity with fan frame 12 central hole edges.During assembling, 5 bottoms, axle center and the edge of the rotor 1 that flabellum 11, fan frame 12, magnet frame 13 are installed at fan frame 12 central holes are connected to a fixed, then axle center 5 is passed oil-impregnated bearing 4 endoporus and be butted on pipe 31 bottoms in the fan frame that stator 2, oil-impregnated bearing 4 are installed until the summit of top, axle center spherical 51, axle center 5 is passed in the fan frame and is managed in 31 processes, utilize the interior ring 1311 of flexible " L " shape to fasten in opposite directions to form to evagination button point 311 and interlock, thereby the part at 5 two ends, axle center is fitted together with " 7 " font; During fractionation, only need untie the interior ring 1311 of " L " shape and get final product to the staggered part at 5 two ends, axle center is separated that evagination button point 311 fastens formation in opposite directions with " 7 " font.
This fan work principle is: the wind-force that produces makes ambient dust enter space 14 in the rotor easily during fan propeller 1 work running.Utilize fan edge edge lower convex platform rank 121 and fan frame base edge epirelief step 321 to form the up/down steps formula in opposite directions and intersects misconstruction, the smooth and easy interior space 14 of rotor that enters of prevention external environment condition dust.Utilize in " L " shapes of motor shell 131 hollows in the ring 1311 and fan frame " 7 " font of pipe 31 upper ends to buckle a little again and 311 formed the misconstruction of reporting to the leadship after accomplishing a task to evagination, more effectively stop the dust that enters space 14 in the rotor to continue to enter 41 places, oil-impregnated bearing space, guarantee quality and the axle center 5 and oil-impregnated bearing 4 work runnings of lubricant oil.Come the current direction of control coil 22 by stator 2 control circuits and change the field pole of silicon steel sheet 21 outside discs, make the field pole of silicon steel sheet 21 outside discs and the field pole of magnet frame 13 inboard discs produce suction and repulsion mutually, utilize the suction and repulsion effect of magnet frame 13 magnetic and stator 2 silicon steel sheets 21, pipe 31 bottoms are tangent and form the vertical point location in the summit that makes top, axle center sphere 51 and the fan frame, axle center and oil-impregnated bearing running operation point 6 is tangent place, point of contact, pipe 31 bottoms in the summit of top, axle center sphere 51 and fan frame, enclosed construction is adopted in pipe 31 bottoms in the fan frame, effectively like this prevents the loss of lubricant oil and entering of ambient dust.Thereby axle center 5 is connected with the edge of fan frame 3 central holes axle center 5 and fan frame 12 is connected as a single entity, axle center 5 is by oil-impregnated bearing 4 endoporus, pipe 31 bottoms are tangent in the summit of top, axle center spherical 51 and the fan frame, by axle center 5 pillow block face 122 and oil-impregnated bearing 4 are separated, so just can guarantee that pillow block face 122 can not contact and collide with oil-impregnated bearing 4, buckle the some structure of 311 dislocation of reporting to the leadship after accomplishing a task that form because of ring 1311 in " L " shape of motor shell 131 hollows and " 7 " font of fanning pipe 31 upper ends in the frame to evagination again, can effectively prevent coming off of rotor 1.
Adopt technique scheme that the fan dustproof construction of various forms can be provided; above-described only is preferred implementation of the present utility model; should be understood that; for the person of ordinary skill of the art; under the prerequisite that does not break away from the utility model creation design; can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (5)
1. the dustproof construction of a fan is made of rotor, stator, fan frame, oil-impregnated bearing, axle center; It is characterized in that, described rotor comprises flabellum, the fan frame and be built in the fan frame madial wall and with the corresponding magnet frame of stator, fan frame bottom central authorities are provided with one and hold the hole that the axle center is passed, magnet frame is combined by motor shell and magnetic stripe, stator comprises silicon steel sheet, the outside coil that twines of silicon steel sheet reaches and carries out the control circuit board that circuit is connected with coil, fan frame central authorities raise up to form in the fan frame and manage, the inner tube wall ring is established oil-impregnated bearing in the fan frame, pipe outer wall ring is set son in the fan frame, there is the corresponding endoporus in hole with fan frame bottom central authorities in oil-impregnated bearing central authorities, the axle center is passed the hole of fan frame bottom central authorities and is placed in the oil-impregnated bearing endoporus, the motor shell bottom according to fan frame inwall at the bottom of to central authorities extend with the fan frame in the pipe upper end form the dislocation of reporting to the leadship after accomplishing a task.
2. the dustproof construction of a kind of fan as claimed in claim 1, it is characterized in that, extend to central authorities at the bottom of fanning the frame inwall described motor shell bottom, encircle up to managing in the frame in " L " shape that the corresponding longitudinal axis of external diameter place forms hollow downwards with fan, be set to " 7 " font on the thin-walled of pipe upper-end surface in the fan frame and buckle a little to evagination, " 7 " font in interior ring of motor shell hollow " L " shape and the fan frame on the pipe is buckled to evagination and has a little been formed the dislocation of reporting to the leadship after accomplishing a task.
3. the dustproof construction of a kind of fan as claimed in claim 1 is characterized in that, the edge epirelief of described fan frame base, and the inboard disc of epirelief part is set to staircase structural model; Protruding under the fan edge edge, the outside disc of following convex portion is set to staircase structural model; In opposite directions protruding and formation up/down steps formula is intersected dislocation under fan frame base edge epirelief and the fan edge edge.
4. the dustproof construction of a kind of fan as claimed in claim 1 is characterized in that, top, described axle center is a spherical, and the axle center is by the oil-impregnated bearing endoporus, and the pipe bottom is tangent in the summit of top, axle center spherical and the fan frame.
5. as the dustproof construction of claim 1 or 4 described a kind of fans, it is characterized in that described axle center links into an integrated entity with the edge in the hole of fan frame bottom central authorities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201541127U CN201433943Y (en) | 2009-05-11 | 2009-05-11 | Dustproof structure for fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201541127U CN201433943Y (en) | 2009-05-11 | 2009-05-11 | Dustproof structure for fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201433943Y true CN201433943Y (en) | 2010-03-31 |
Family
ID=42052750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201541127U Expired - Fee Related CN201433943Y (en) | 2009-05-11 | 2009-05-11 | Dustproof structure for fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201433943Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102901837A (en) * | 2011-07-26 | 2013-01-30 | 建准电机工业股份有限公司 | Wind speed detection device |
| CN105224051A (en) * | 2015-10-23 | 2016-01-06 | 广西职业技术学院 | A kind of novel deashing CPU radiator fan |
| CN110185639A (en) * | 2019-05-20 | 2019-08-30 | 宁波生久散热科技有限公司 | Novel magnetically levitated radiator fan |
-
2009
- 2009-05-11 CN CN2009201541127U patent/CN201433943Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102901837A (en) * | 2011-07-26 | 2013-01-30 | 建准电机工业股份有限公司 | Wind speed detection device |
| CN105224051A (en) * | 2015-10-23 | 2016-01-06 | 广西职业技术学院 | A kind of novel deashing CPU radiator fan |
| CN105224051B (en) * | 2015-10-23 | 2019-01-11 | 广西职业技术学院 | A kind of novel deashing CPU radiator fan |
| CN110185639A (en) * | 2019-05-20 | 2019-08-30 | 宁波生久散热科技有限公司 | Novel magnetically levitated radiator 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: 20100331 Termination date: 20100511 |