CN2755326Y - Radiating fan - Google Patents
Radiating fan Download PDFInfo
- Publication number
- CN2755326Y CN2755326Y CN 200420116243 CN200420116243U CN2755326Y CN 2755326 Y CN2755326 Y CN 2755326Y CN 200420116243 CN200420116243 CN 200420116243 CN 200420116243 U CN200420116243 U CN 200420116243U CN 2755326 Y CN2755326 Y CN 2755326Y
- Authority
- CN
- China
- Prior art keywords
- axle center
- wheel hub
- unit
- radiation fan
- conjunction
- 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 - Lifetime
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Abstract
The utility model discloses a heat dissipation fan, which comprises a base unit with a shaft sleeve, a power bearing with a shaft center, a stator unit sheathed and fixed on the shaft sleeve, and a rotor unit, wherein the rotor unit is combined with the shaft center and is provided with a wheel boss, a shaft pipe which is arranged on a position on the inner top surface of the wheel boss corresponding to the circumference of a concave hole and a combination piece which is contained in the shaft sleeve and can be sheathed and fixed on the circumference surface of the shaft center. The center of the wheel boss is provided with the concave hole, and the shaft center passes through the shaft pipe. The combination piece is inserted into the utility model to be sheathed and fixed on the shaft center through the concave hole from outside, and thus, the shaft center can be firmly positioned in the shaft pipe and the wheel boss can be tightly combined with the shaft center. The whole of the utility model can be assembled conveniently and rapidly, and the utility model has high combination precision and better combination strength.
Description
Technical field
The utility model relates to a kind of radiation fan, particularly relates to a kind of easily assembled facility, good in conjunction with precision, and the good radiation fan of adhesive strength.
Background technique
As shown in Figure 1, when the impeller 11 of general radiation fan 1 combines with the axle center 121 of motive bearing 12, this axle center 121 is corresponding inserted, is positioned the position in the central siphon 112 of wheel hub 111 inner faces of this impeller 11, to reach the purpose that this impeller 11 is combined with this axle center 121.
And in the cohesive process in impeller 11 and this axle center 121, mainly be to purchase an impeller mould (not shown) in advance, allow this axle center 121 vertically plant again and go into this impeller mould relatively in the predeterminated position at central siphon place, carry out the plastics ejection formation subsequently the molten state plastic raw material is injected in this impeller mould, treat just can finish after the plastic raw material cooling and the demoulding finished product of this impeller 11, this axle center 121 promptly combines with the wheel hub 111 of this impeller 11 simultaneously.
Yet, the once-through mode of utilizing impeller 11 in plastics ejection formation process, to combine with axle center 121 in the lump, in the time of in the plastic raw material of melt flow stream shape is injected the impeller mould, can cause and push being preset in axle center 121 in the impeller mould, easily make this axle center 121 produce deflection and lose default precision, so that the rotating center degree in the axle center 121 behind the connecting shaping departs from the central axis of wheel hub 111, cause impeller 11 to go up extremely and have some setbacks, easily produce different sound of abrasion and the not good problem of heat radiation effect in running.Perhaps, if find axle center 121 these phenomenons of skew at once, also must carry out correction operation more consuming timely, and cause the loss and the loaded down with trivial details time-consuming inconvenience of flow process of fabricating cost.
As shown in Figure 2, the impeller 31 of another radiation fan 3 and the combination in the axle center 321 of motive bearing 32, then be to mold impeller 31 earlier, with drive fit or fixed point adhesive means axle center 321 correspondences of motive bearing 32 being planted is incorporated in the central siphon 312 of this impeller 31 again, just finishes the wheel hub 311 of impeller 31 and the operation that combines in axle center 321.
Yet, utilize impeller 31 and axle center 321 in giving the upright post forming mode that combines of close-fitting/adhesion group again after the moulding respectively, make impeller 31 in forming process, caliber precision for central siphon 312 requires necessary monitor closely, if slightly error is arranged, just can cause axle center 321 and central siphon 312 can't in conjunction with problem.On the other hand, in the upright process of group, axle center 321 must hide and be gone into wheel hub 311 inside and sentence and carry out combination, and bonding state is difficult to control, and cohesive process bothers and be inconvenient.
The model utility content
The purpose of this utility model is for a kind of easily assembled facility, good in conjunction with precision is provided, and the good radiation fan of adhesive strength.
For achieving the above object, the utility model radiation fan comprises a base unit, a motive bearing, a stator unit, and a rotor unit.This base unit has a base, and an axle sleeve that is arranged on this base.This motive bearing has a bearing main body that is placed in this axle sleeve, and an axle center that is arranged on this bearing main body end face.This stator unit is that cover covers and is fixed on this axle sleeve side face.This rotor unit is to cover rotationally to be overlying on this stator unit outer rim and to combine with the axle center of this motive bearing, this rotor unit has wheel hub, that a center is formed with a shrinkage pool and is arranged at this wheel hub inner top surface and is placed in this central siphon and can overlaps that the conjunction, that covers and be fixed on this axle center side face is arranged on this wheel hub inner ring surface and the magnet ring that can interact with stator unit with respect to this shrinkage pool peripheral region and for the central siphon, that this axle center places, and majority is arranged at the fan leaf on this wheel hub outer ring surface.
Effect of the present utility model is to utilize the shrinkage pool of the wheel hub of this rotor unit to be connected on the space with this central siphon, the axle center of this motive bearing is in being placed through this central siphon from lower to upper the time, the conjunction in this central siphon is inserted in cooperation from top to bottom via this shrinkage pool, just can allow the axle center of this motive bearing firmly be positioned in this central siphon, and can be combined closely effectively in this rotor unit and this axle center, overall package is convenient rapidly, in conjunction with the precision height, and adhesive strength is good.
Description of drawings
Below by most preferred embodiment and accompanying drawing the utility model radiation fan is elaborated, in the accompanying drawing:
Fig. 1 is an assembled sectional view, illustrates that the one wheel hub is easily departed from an axle center of an existing radiation fan;
Fig. 2 is an assembled sectional view, and the axle center that another existing radiation fan is described is to combine with a wheel hub in the drive fit mode;
Fig. 3 is a three-dimensional exploded view, and one first preferred embodiment of the utility model radiation fan is described;
Fig. 4 is an assembled sectional view, this first preferred embodiment is described, and wherein a conjunction is a C type latch closure;
Fig. 5 is an assembled sectional view, and one second preferred embodiment of the utility model radiation fan is described, and wherein a conjunction is a metal ring;
Fig. 6 is a partial cross sectional view, and one the 3rd preferred embodiment of the utility model radiation fan is described, and wherein an axle center side face is formed with an embossing lines.
Embodiment
For convenience of explanation, following embodiment, components identical is represented with identical label.
As shown in Figure 3 and Figure 4, one first preferred embodiment of the utility model radiation fan 2, be to comprise a base unit 21, to be placed in motive bearing 22, a stator unit 23 in this base unit 21, and one rotationally cover be overlying on the rotor unit 24 of these stator unit 23 outer rims.
This base unit 21 has a base 211, and one is arranged on this base 211 and for these motive bearing 22 ccontaining axle sleeves 212 wherein.This axle sleeve 212 has quadruple scanning and is arranged in ring-type and the curved flexible vertical bar portion 213 of tool, and each vertical bar portion 213 top is to be bent into rectangular-shaped towards these motive bearing 22 directions.This four vertical bars portion 213 can pull outward and be the curving state, and resets subsequently and be erectility.
This motive bearing 22 has a bearing main body 221 that is placed in this axle sleeve 212, and one is extended upward and tip portion is the axle center 222 that combines with this rotor unit 24 by these bearing main body 221 end faces.The end face of this bearing main body 221 is pressed by the top of the vertical bar portion 213 rectangular kink shapes of this axle sleeve 212 to touch.The footpath has been recessed to form an annular groove 223 less than this bearing main body 221 and away from the end side face of this bearing main body 221 outside this axle center 222.
This stator unit 23 has a coil groups 231 that is sheathed on axle sleeve 212 side faces of this base unit 21.This rotor unit 24 is to cover rotationally to be overlying on these stator unit 23 outer rims and to combine with the axle center 222 of this motive bearing 22, and has a wheel hub 241 that a center is formed with a shrinkage pool 242, one is arranged at these wheel hub 241 inner top surfaces is placed through interior central siphon 243 from lower to upper with respect to these shrinkage pool 242 peripheral regions and for this axle center 222, one is placed in this central siphon 243 from top to bottom and can overlaps the conjunction 247 at annular groove 223 places that are fixed in these axle center 222 side faces via this shrinkage pool 242, one is arranged on these wheel hub 241 inner ring surfaces and the magnet ring 248 that can interact with stator unit 23, and most fan leaf 249 that is arranged on these wheel hub 241 outer ring surfaces.In the present embodiment, but this conjunction 247 scalable C type latch closure that is an elasticity.
And the central siphon 243 of this rotor unit 24 has a collar part 244 that links with this wheel hub 241 inner top surface quadratures, and one goes into these annular groove 223 places and is the retaining wall portion 245 of stacked state up and down with this conjunction 247 towards these axle center 222 direction horizontal-extendings from these collar part 244 root edges.This retaining wall portion 245 defines an axis hole 246 that supplies this axle center 222 to pass through and communicate with the shrinkage pool 242 of this wheel hub 241.
In the upright process of the group of this radiation fan 2, being the first application of force gives the outer inclined bending shape attitude of pulling back with the vertical bar portion 213 of this axle sleeve 212, being beneficial to this motive bearing 22 inserts, automatically reset into vertical with relief vertical bar portion 213, vertical bar portion 213 just can be coated on bearing main body 221 side faces of this motive bearing 22 and end face place and it is firmly settled wherein.Then, these stator unit 23 covers are fixed on this axle sleeve 212; Exerting pressure allows this rotor unit 24 covers be overlying on this stator unit 23 outer rims again, and the axle center 222 that makes this motive bearing 22 simultaneously is this axis hole 246 of ground warp and being extended through in this central siphon 243 from lower to upper, and this moment, the annular groove 223 in this axle center 222 was positioned at this axis hole 246 tops.Continuous and, cooperate and to utilize this conjunction 247 directly to be placed in this central siphon 243 through the shrinkage pool 242 of this wheel hub 241 from the outside, and cover is buckled in this axle center 222 with respect to annular groove 223 places, this axle center 222 just can firmly combine with the wheel hub 241 of this rotor unit 24, and the group of so far just finishing radiation fan 2 is upright.
In addition when this radiation fan 2 turns, main when utilizing energising, the coil groups 231 of this stator unit 23 can with 248 generations of magnet ring alternating magnetic field effect of corresponding this rotor unit 24 of institute, rotate in order to order about magnet ring 248.This rotor unit 244 just can rotate as supporting pivot rapidly, swimmingly with this axle center 222, drives powerful radiating airflow simultaneously.
Therefore, this radiation fan 2 uses with reality in the upright process of group, can bring into play following advantage really:
1. the upright process of group is quite simple and easy and convenient:
In in conjunction with the axle center 222 of the wheel hub 241 of this rotor unit 24 and this motive bearing 22 time, be to allow this axle center 222 and in this central siphon 243 that stretches through earlier through this axis hole 246, immediately with this conjunction 247 directly from the outside through 242 inputs of this shrinkage pool and cover is buckled on this axle center 222, just be able to this wheel hub 241 and this axle center 222 are firmly combined.
In order to can allow the rotating center degree in axle center 222 and the central axis of this wheel hub 241 keep existing conformity, and utilizing this conjunction 247 can be directly to insert through the shrinkage pool 242 of this wheel hub 241 is buckled in cover on this axle center 222 and makes it locate this accurately and easily in conjunction with processing mode, effectively the reduction group is found the process fussy degree, whole group is upright quite simple and easy and convenient, can obviously improve existing radiation fan 1 (see figure 1) in the plastics ejection formation process of impeller 11, easily cause axle center 121 to depart from wheel hub 111 central axis, must take a lot of work and proofread and correct so that upright loaded down with trivial details this problem consuming time of group; The axle center 321 that also can obviously improve existing radiation fan 3 (see figure 2)s must concealment be gone into wheel hub 311 inner places and is given combination, and both bonding states are difficult to control, and cohesive process is trouble and this problem of inconvenience.
2. in conjunction with the precision height:
After wheel hub 241 is moulding out of the ordinary with motive bearing 22, beginning further utilizes this conjunction 247 of inserting from shrinkage pool 242 outsides to be equipped in the annular groove 223 in this axle center 222, in order to do allowing wheel hub 241 and axle center 222 firmly combine, the rotating center degree of effectively guaranteeing axle center 222 conforms to consistent with the central axis of this wheel hub 241, the upright process of whole group is simple and easy and in conjunction with the precision height, effectively improve existing radiation fan 1 (see figure 1) in impeller 11 plastics ejection formation processes, easily cause the rotating center degree in axle center 121 to depart from the central axis of wheel hub 111, so that in conjunction with not good this problem of precision.
3. adhesive strength is good:
And the annular groove 223 that utilizes this axle center 222 can be for these conjunction 247 projections, fasten in wherein, conjunction 247 is further fixed with the retaining wall portion 245 of this central siphon 243 so that this wheel hub 241 can firmly combine with this axle center 222, whole adhesive strength is good.
4. can turn round on steady and smooth ground, the heat radiation effect is good:
Continue as described above, utilize this conjunction 247 to insert and to combine through this shrinkage pool 242 by the outside with these axle center 222 hitch, cooperate the annular groove 223 in this axle center 222 can supply these conjunction 247 projections, fasten in wherein, and conjunction 247 and then affixed with the retaining wall portion 245 of this central siphon 243, this wheel hub 241 is able to firm the combination with this axle center 222, and wheel hub 241 central axis are overlapping consistent with the rotating center degree in axle center 222, this rotor unit 24 just can be steady, running swimmingly, relatively effectively suppress the friction noise amount, and promote the heat transmission gas flow, whole exhaust air rate is big and the heat radiation effect is good, effectively easily depart from the axle center 121 of improving existing radiation fan 1 (see figure 1), causes impeller 11 runnings to have some setbacks, big and not good this problem of heat radiation effect of noise.
As shown in Figure 5, be one second preferred embodiment of the utility model radiation fan 2, different with this first preferred embodiment be in, the longitudinal section area of 222 ends, axle center of this motive bearing 22 generally is shape.And in the present embodiment, this conjunction 247 be for one with the metal ring of axle center 222 riveteds of this motive bearing 22.
Therefore, after this axle center 222 is extended through in this central siphon 243, is to utilize this conjunction 247 to insert through the shrinkage pool 242 of this wheel hub 241, and firmly rivets together with this axle center 222 from outside.
As shown in Figure 6, one the 3rd preferred embodiment for the utility model radiation fan 2, different with this second preferred embodiment be in, these axle center 222 side faces are formed with an embossing lines 224, and the inner peripheral surface of this conjunction 247 has and the embossing lines of these embossing lines 224 corresponding matching, in order to increase the area of contact of 247 of this axle center 222 and this conjunctions, further promote the adhesive strength in 222 in conjunction 247 and axle center more.
Conclude above-mentioned, the utility model radiation fan 2, utilize the shrinkage pool 242 of the wheel hub 241 of this rotor unit 24 on the space, to be connected with this central siphon 243, the axle center 222 of this motive bearing 22 is in being placed through this central siphon 243 from lower to upper the time, cooperation is inserted through this shrinkage pool 242 from the outside and is inserted conjunction 247 in this central siphon 243 from top to bottom, just can allow the axle center 222 of this motive bearing 22 firmly be positioned in this central siphon 243, combine closely in 24 of this rotor units and this axle center 222, overall package is convenient rapidly, in conjunction with the precision height, and adhesive strength is good.
Claims (6)
1. radiation fan, comprise a base unit, one motive bearing, one stator unit, an and rotor unit, this base unit has a base, an and axle sleeve that is arranged on this base, this motive bearing has a bearing main body that is placed in this axle sleeve, an and axle center that is arranged on this bearing main body end face, this stator unit is that cover covers and is fixed on this axle sleeve side face, this rotor unit is to cover rotationally to be overlying on this stator unit outer rim and to combine with the axle center of this motive bearing, this rotor unit has a wheel hub, one is arranged on this wheel hub inner ring surface and the magnet ring that can interact with stator unit, and most fan leafs that are arranged on this wheel hub outer ring surface, it is characterized in that: the center of this wheel hub is formed with a shrinkage pool, this rotor unit also has one and is arranged at this wheel hub inner top surface with respect to this shrinkage pool peripheral region and the central siphon that allows this axle center pass, and one is placed in this central siphon and can overlaps the conjunction that covers and be fixed on this axle center side face.
2. radiation fan as claimed in claim 1 is characterized in that:
The central siphon of this rotor unit has a collar part that links with this wheel hub, and one extend the retaining wall portion that is provided with from this collar part root edge towards this axis direction, and this retaining wall portion defines an axis hole that communicates with the shrinkage pool of this wheel hub.
3. radiation fan as claimed in claim 2 is characterized in that:
The end side face that this axis hole is passed in the axle center of this motive bearing is recessed to form a conjunction for this rotor unit and buckles location annular groove wherein, but this conjunction scalable C type latch closure that is an elasticity.
4. radiation fan as claimed in claim 1 is characterized in that:
The conjunction of this rotor unit be one can with the metal ring of the axle center riveted of this motive bearing.
5. radiation fan as claimed in claim 4 is characterized in that:
The axle center side face of this motive bearing is formed with an embossing lines.
6. radiation fan as claimed in claim 1 is characterized in that:
The axle sleeve of this base unit has the vertical bar portion that majority is circlewise spaced and tool is flexible, and each vertical bar portion top is the kink shape that is towards this motive bearing direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420116243 CN2755326Y (en) | 2004-12-21 | 2004-12-21 | Radiating fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420116243 CN2755326Y (en) | 2004-12-21 | 2004-12-21 | Radiating fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2755326Y true CN2755326Y (en) | 2006-02-01 |
Family
ID=35928954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420116243 Expired - Lifetime CN2755326Y (en) | 2004-12-21 | 2004-12-21 | Radiating fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2755326Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104421198A (en) * | 2013-09-04 | 2015-03-18 | 台达电子工业股份有限公司 | Fan rotor structure and manufacture method thereof |
| CN104632662A (en) * | 2015-01-20 | 2015-05-20 | 广东威灵电机制造有限公司 | Draught fan and air conditioner provided with same |
| CN105958680A (en) * | 2016-04-28 | 2016-09-21 | 广东美的环境电器制造有限公司 | Rotor assembly and motor comprising the same |
-
2004
- 2004-12-21 CN CN 200420116243 patent/CN2755326Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104421198A (en) * | 2013-09-04 | 2015-03-18 | 台达电子工业股份有限公司 | Fan rotor structure and manufacture method thereof |
| CN104421198B (en) * | 2013-09-04 | 2018-10-16 | 台达电子工业股份有限公司 | The rotor structure and its manufacturing method of fan |
| CN104632662A (en) * | 2015-01-20 | 2015-05-20 | 广东威灵电机制造有限公司 | Draught fan and air conditioner provided with same |
| CN105958680A (en) * | 2016-04-28 | 2016-09-21 | 广东美的环境电器制造有限公司 | Rotor assembly and motor comprising the same |
| CN105958680B (en) * | 2016-04-28 | 2019-02-15 | 广东美的环境电器制造有限公司 | Rotor assembly and motor with it |
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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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20141221 Granted publication date: 20060201 |