CN2791322Y - Radiating fan - Google Patents
Radiating fan Download PDFInfo
- Publication number
- CN2791322Y CN2791322Y CN 200520011842 CN200520011842U CN2791322Y CN 2791322 Y CN2791322 Y CN 2791322Y CN 200520011842 CN200520011842 CN 200520011842 CN 200520011842 U CN200520011842 U CN 200520011842U CN 2791322 Y CN2791322 Y CN 2791322Y
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- sleeve part
- shell block
- shaft sleeve
- ring
- 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
Links
- 230000005855 radiation Effects 0.000 claims description 27
- 230000000694 effects Effects 0.000 abstract description 10
- 239000012530 fluid Substances 0.000 description 10
- 239000000428 dust Substances 0.000 description 5
- 238000007789 sealing Methods 0.000 description 4
- 230000005426 magnetic field effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a radiating fan which comprises a casing seat which is provided with a shaft sleeve part, a magnetic supporting piece which is positioned in the bottom of the shaft sleeve part, a stator unit which is sheathed and fixed on the shaft sleeve part, a bearing piece which is positioned in the top of the shaft sleeve part, a fan wheel unit which can be rotatablely arranged in the casing seat and a limiting seat, wherein the fan wheel unit is provided with a rotating shaft which can be pivotally penetrated in the bearing piece, and the bottom end of the rotating shaft can rotatablely push and contact the magnetic supporting piece; the limiting seat is fixed between the magnetic supporting piece and the rotating shaft. The integral stability and the smooth degree of the run of the fan wheel unit can be effectively increased and the admirable running quietness effect can be obtained because the limiting bore of the limiting seat can assist the rotating shaft to rotate stably and smoothly on the magnetic supporting piece.
Description
[technical field]
The utility model relates to a kind of radiation fan, particularly relates to the radiation fan that a kind of run stability is good and running noise is low.
[background technique]
As shown in Figure 1, for this case claimant applies for " radiation fan " the preceding, it comprises a skeleton frame 11, and uprightly is arranged at central siphon 12, that these skeleton frame 11 centers and its bottom is closed shape is placed in this skeleton frame 11 and the sheathed stator unit 13, that is fixed on this central siphon 12 is placed in this skeleton frame 11 rotationally and cover is overlying on these stator unit 13 outer rims impeller unit 14, and is fixed in a magnetic supporter 15 in these central siphon 12 bottoms and a bearing 16 that is disposed in this central siphon 12.Wherein, this magnetic supporter 15 is permanent magnets.
This impeller unit 14 has that a wheel hub 141, majority are arranged at intervals at that blade 142, on these wheel hub 141 outer circumferential faces is located on these wheel hub 141 inner peripheral surfaces and the magnet ring 143 corresponding with this stator unit 13, and a top links these wheel hub 141 inner top surfaces and is placed through rotatingshaft 144 in this bearing 16.These rotatingshaft 144 bottoms are to touch rotationally on these magnetic supporter 15 surfaces, the end.
In when energising, the coil of this stator unit 13 can with 143 generations of magnet ring alternating magnetic field effect of corresponding this impeller unit 14 of institute, this magnet ring 143 thereby rotate.These impeller unit 14 integral body just can be rotated as supporting pivot point rapidly, swimmingly with this rotatingshaft 144, and drive radiating airflow.The same time, utilizing this rotatingshaft 144 to be subjected to this magnetic supporter 15 to support and stand on its surface upward rotates rapidly, this rotatingshaft 144 is the drop-down magnetic attraction of induced magnetism supporter 15 directly, and then impels these impeller unit 14 integral body influenced by drop-down magnetic attraction when rotating and reach the purpose of running balance and stability.
But because these rotatingshaft 144 bottoms are only borrowed the magnetic attraction influence and are merely stayed on these magnetic supporter 15 surfaces, 15 of rotatingshaft 144 and magnetic supporters there is no other auxiliary limit structures, maybe may cause rotatingshaft 144 when rotating, to produce the phenomenon of beat and this bearing 16 of wearing and tearing a little, desirable to the greatest extent for running noise control.So the blemish in an otherwise perfect thing of case before this case is tried hard to improve is in the hope of allowing radiation fan 1 can present more excellent run stability, running smooth degree and low running noise characteristic when turning round.
[model utility content]
The purpose of this utility model is for a kind of preferable run stability that has being provided, reaching the radiation fan of preferable quiet effect.
For achieving the above object, a kind of radiation fan of the present utility model, comprise a shell block, one magnetic support, one stator unit, one impeller unit, one bearing member, an and rotating shaft location unit, this shell block has a shell block portion, an and shaft sleeve part that uprightly is arranged at this shell block portion center, this magnetic support is to be fixedly arranged in the shaft sleeve part bottom of this shell block and to have a supporting surface, this stator unit is on the sheathed shaft sleeve part that is fixed in this shell block, this impeller unit is to be arranged in this shell block, and have a cover and cover the wheel hub that places top, this stator unit periphery, one uprightly is arranged at the rotating shaft of this wheel hub bottom surface, majority is arranged at intervals at the blade of this wheel hub outer ring surface, an and magnet ring that is arranged at this wheel hub inner ring surface, this rotating shaft is stretched in the shaft sleeve part of inserting this shell block and its bottom contacts on the supporting surface that is arranged at this magnetic support, this bearing member is to be arranged between the shaft sleeve part of the rotating shaft of this impeller unit and this shell block, it is characterized in that:
This rotating shaft location unit is to be arranged in the shaft sleeve part bottom of this shell block, and has a position limit socket that is fixedly arranged on the supporting surface of this magnetic support, and this position limit socket center has one and stretches for this rotating shaft bottom and to insert to contact the spacing hole of this magnetic support.
Effect of the present utility model is to utilize in the shaft sleeve part that is arranged at this shell block, and position this position limit socket between this magnetic support and rotating shaft bottom, be the spacing rotation of fixed-point type to assist this rotating shaft on this magnetic support, to be close to, rotating shaft is able to highly stable ground quick rotation, and then guarantee the high run stability of this impeller whole unit, and effectively suppress the running noise amount and reach the splendid quiet effect that changes into of running.
[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, and an existing radiation fan is described;
Fig. 2 is a three-dimensional exploded view, and one first preferred embodiment of the utility model radiation fan is described;
Fig. 3 is an assembled sectional view of this first preferred embodiment;
Fig. 4 is a partial enlarged drawing of this first preferred embodiment;
Fig. 5 is an assembled sectional view, and one second preferred embodiment of the utility model radiation fan is described.
[embodiment]
The utility model be described in detail before, be noted that in the following description content similar elements is to represent with identical numbering.
As Fig. 2 and shown in Figure 3, one first preferred embodiment of the utility model radiation fan 2, be to comprise a shell block 21, to be placed in magnetic support 22, in this shell block 21 and to be placed in stator unit 23, in this shell block 21 and to be placed in impeller unit 24, a bearing member 25 in this shell block 21 and a rotating shaft location unit 26 rotationally.In the present embodiment, this bearing member 25 is oil-impregnated bearings.
This shell block 21 has the shell block portion 211 of a hollow, and a shaft sleeve part 212 that uprightly is arranged at these shell block portion 211 centers.These shaft sleeve part 212 bottoms are to be open shape, and the inner wall surface thereof positon of near bottom is formed with a ring draw-in groove 213.
This magnetic support 22 is to be positioned in shaft sleeve part 212 bottoms of this shell block 21, and has a supporting surface 221 towards this impeller unit 24; In the present embodiment, this magnetic support 22 is permanent magnets.This bearing member 25 is to be installed on tightly in these shaft sleeve part 212 tops.This stator unit 23 is on sheathed shaft sleeve part 212 outsides of being fixed in this shell block 21.
This impeller unit 24 has a cover and is overlying on the wheel hub 241, that this stator unit 23 peripheral tops and longitudinal section be inverted U and uprightly is arranged at the blade 243 that these wheel hub 241 bottom surfaces and its top and this wheel hub 241 bottom surfaces affixed rotating shaft 242 (see figure 3)s, majority are arranged at intervals at these wheel hub 241 outer ring surfaces, and one encircles magnet ring 244 (see figure 3)s that are affixed on these wheel hub 241 inner ring surfaces and can interact with this stator unit 23.
Wherein, this rotating shaft 242 is to be placed through pivotly in this bearing member 25 also to contact rotationally on the supporting surface 221 of this magnetic support 22, this rotating shaft 242 also has a main shaft part 245 that links with this wheel hub 241, and one is arranged at these main shaft part 245 bottoms and contacts pushing away of this magnetic support 22 and pulls out end 246; This pushes away and pulls out end 246 external diameters is convergents from top to bottom, and this pushes away the maximum outside diameter that pulls out end 246 is greater than main shaft part 245 bottom external diameters, makes this push away and pulls out end 246 and this main shaft part 245 and form a ring and collude groove 247 in the jointing place mutually.
This rotating shaft location unit 26 is to be arranged in shaft sleeve part 212 bottoms of this shell block 21, and have one and be fixedly arranged on the supporting surface 221 of this magnetic support 22 and uprightly be arranged on these position limit socket 261 end faces with position limit socket 261, three equidistant compartment of terrains that these shaft sleeve part 212 inlay cards link and pull out the overhead kick post 262 of end 246 non-contiguously around pushing away of this rotating shaft 242, and one in order to be hidden in this position limit socket 261 and this magnetic support 22 sealings the interior closure base 263 of this shaft sleeve part 212.The top of colluding shape that is of each overhead kick post 262 is just to collude in this ring to collude groove 247 places.
And this position limit socket 261, this shaft sleeve part 212 match with this bearing member 25 threes and define a space 27, and in the present embodiment, this space 27 is in order to oil storage.These rotating shaft 242 lower semisections partly are that the position is in this space 27.When this impeller unit 24 rotates rapidly, this bearing member 25 can disengage the fluid of lubricated usefulness, to reduce the surface friction drag of 242 of bearing member 25 and rotating shafts, and these bearing member 25 disengages are in these rotating shaft 242 lip-deep fluid, can be along these rotating shaft 242 length directions dirty and be temporary in this space 27, pass back in this bearing member 25 waiting.
As Fig. 2 and shown in Figure 4, this position limit socket 261 has one and is covered on the supporting surface 221 of this magnetic support 22 and is the ring cowling portion 264, one and these ring cowling portion 264 outer circumferential faces link and around the ringwall portion 265 of these ring cowling portion 264 lateral circle surfaces of inverted U, and one outwards protrudes out and set card wall portion 266 in the ring draw-in groove 213 of this shaft sleeve part 212 from these ringwall portion 265 root edges.These ring cowling portion 264 end faces have one and pull out 246 for bottoms, end and stretch the spacing hole of putting with the supporting surface 221 that contacts this magnetic support 22 260 for pushing away of this rotating shaft 242, and these spacing hole 260 internal diameters are to push away the external diameter that pulls out 246 for bottoms, end greater than this, make this ring cowling portion 264 not push away with this and pull out end 246 and contact.This ringwall portion 265 pastes with these shaft sleeve part 212 internal faces to touch mutually.Mainly utilize this card wall portion 266 to be embedded in this ring draw-in groove 213, make this position limit socket 261 be fixed in these shaft sleeve part 212 bottoms together with this magnetic support 22.
This closure base 263 has one with these shell block portion 211 inlay cards and be exposed to outer and with the portion that covers 267 of the shaft sleeve part 212 bottoms sealing of this shell block 21, and one covers from this that portion's 267 end faces are convex to be stretched in this shaft sleeve part 212 and be embedded in the ring cowling portion 264 of this position limit socket 261 and the embedding part 268 of 265 in ringwall portion.Utilize closure base 263 with this shaft sleeve part 212 bottoms sealing, to allow this space 27 form fully externally closed state, fluid that this bearing member 25 disengages is full of in this space 27 and is not leaked, and can prevent that dust in the ambient air from falling into through these shaft sleeve part 212 bottoms and in accumulating on, reach anti-oil leakage and dust-tight effect.
When this radiation fan 2 turns, the main utilization when switching on, this stator unit 23 can with 244 generations of magnet ring alternating magnetic field effect of corresponding this impeller unit 24 of institute, rotate in order to order about magnet ring 244, it is the supporting pivot point that these impeller unit 24 integral body just can be stood on these magnetic support 22 lip-deep these rotating shafts 242 with the top, and rotate rapidly, swimmingly, and then drive powerful radiating airflow.
At this moment, the spacing hole 260 and overhead kick post 262 that cooperate the position limit socket 261 of this rotating shaft location unit 26, with auxiliary guarantee these rotating shaft 242 perseverances in spacing hole 260 is cooperated with overhead kick post 262 enclose limit regional in stable rotation, effectively promote the run stability of this impeller unit 24 when rapid rotation.
On the other hand, because when the rotating shaft 242 of this impeller unit 24 produces friction in rapid rotation and with this bearing member 25,242 of this bearing member 25 and this rotating shafts will form subnormal ambient, ordering about these bearing member 25 contained fluid is oozed out therebetween, to reduce this rotating shaft 242, impel these impeller unit 24 integral body can smooth and easy constantly, smooth rotation in the surface friction drag in when running.And utilize the sealing process of the closure base 263 of this rotating shaft location unit 26 for these shaft sleeve part 212 bottoms, just can allow space 27 in order to oil storage be in fully spatiality to outer closure, the fluid that this bearing member 25 disengaged will be satisfied and is stored in this space 27 and not leak, and can effectively suppress extraneous dust simultaneously and fall into this shaft sleeve part 212 and improper absorption fluid, allow this bearing member 25 can keep set oil content for a long time, for making this impeller unit 24 smooth rotation constantly.
Therefore, this radiation fan 2 can be brought into play following advantage really on manipulating:
1. this rotating shaft 242 can stable rotation, and the overall operation stability is good:
Utilize the spacing hole 260 of the position limit socket 261 of this rotating shaft location unit 26 to match with overhead kick post 262, this rotating shaft 242 can be close in both enclose the limit regional extent be the spacing rotation in fixed-point type ground, this rotating shaft 242 just can highly stable ground quick rotation, impel the running stability of these impeller unit 24 integral body greatly to promote, simultaneously can reduce the wear intensity of this rotating shaft 242 for this bearing member 25, prolong 25 working lifes of bearing member, and rotatingshaft 144 (see figure 1)s of case radiation fan 1 may produce beat before effectively improving, and influence overall operation stability and allow bearing produce the problem of bigger abrasion.
2. keep guarantor's oil condition, promote the running smooth degree:
In addition, utilize closure base 263 designs of this rotating shaft location unit 26, allow the space 27 in order to oil storage be in external closed state, when continuing friction in this rotating shaft 242 in rapid rotation and with this bearing member 25,25 fluid that disengage outward of this bearing member can be full of in this space 27, or be absorbed into again again in this bearing member 25, fluid follows in this space 27 and refluxes moving and do not leak fully.And this closure base 263 more can effectively suppress extraneous dust accumulation in this shaft sleeve part 212, avoid fluid to be absorbed by dust and measure and subtract, or rotating shaft 242 is hindered by dust and situation that running has some setbacks.
Therefore, 242 of this bearing member 25 and this rotating shafts just can be maintained at full oil condition and effectively reduce between the two surface friction drag by perseverance, allow whole running smooth degree greatly be promoted.
3. effectively suppress running noise, the quiet effect that changes into that turns round is good:
As described above, cooperate with overhead kick post 262 and to this rotating shaft 242 spacing function that produces in the position limit socket 261 of this rotating shaft location unit 26, can greatly promote the run stability of this rotating shaft 242, and this closure base 263 can prevent effectively that the fluid of this bearing member 25 from leaking, guarantee that 242 perseverances of this bearing member 25 and this rotating shaft maintain the full oil lubrication state of low surface friction drag, these impeller unit 24 integral body are able to smooth and easy highly stablely running, can effectively suppress running noise relatively produces, reach the splendid quiet effect that changes into of running, before improving case radiation fan 1 because of rotatingshaft 144 (see figure 1)s may produce beat so that influence the problem of running noise control effect.
As shown in Figure 5, one second preferred embodiment of the utility model radiation fan 2, different with this first preferred embodiment be in, this bearing member 25 is to be ball bearing, this radiation fan 2 does not have closure base 26 as shown in Figure 3, and this space 27 is not just as the oil storage purposes.And present embodiment can reach first preferred embodiment institute equally run stability is good according to this, and quiet the changing into of turning round imitated effects such as good.
Conclude aforementioned, radiation fan 2 of the present utility model, utilize these rotating shaft location unit 26 auxiliary these rotating shafts 242 on this magnetic support 22, to be close to and be the spacing rotation of fixed-point type, this rotating shaft 242 stablized, quick rotation swimmingly, the run stability of these impeller unit 24 integral body and running smooth degree all can greatly be promoted, and can effectively suppress the running noise amount and reach the splendid quiet effect that changes into of running, so can reach the purpose of this utility model really.
Claims (8)
1. radiation fan, comprise a shell block, one magnetic support, one stator unit, one impeller unit, one bearing member, an and rotating shaft location unit, this shell block has a shell block portion, an and shaft sleeve part that uprightly is arranged at this shell block portion center, this magnetic support is to be fixedly arranged in the shaft sleeve part bottom of this shell block and to have a supporting surface, this stator unit is on the sheathed shaft sleeve part that is fixed in this shell block, this impeller unit is to be arranged in this shell block, and have a cover and cover the wheel hub that places top, this stator unit periphery, one uprightly is arranged at the rotating shaft of this wheel hub bottom surface, majority is arranged at intervals at the blade of this wheel hub outer ring surface, an and magnet ring that is arranged at this wheel hub inner ring surface, this rotating shaft is stretched in the shaft sleeve part of inserting this shell block and its bottom contacts on the supporting surface that is arranged at this magnetic support, this bearing member is to be arranged between the shaft sleeve part of the rotating shaft of this impeller unit and this shell block, it is characterized in that:
This rotating shaft location unit is to be arranged in the shaft sleeve part bottom of this shell block, and has a position limit socket that is fixedly arranged on the supporting surface of this magnetic support, and this position limit socket center has one and stretches for this rotating shaft bottom and to insert to contact the spacing hole of this magnetic support.
2. radiation fan as claimed in claim 1 is characterized in that:
The shaft sleeve part bottom of this shell block is to be open shape.
3. radiation fan as claimed in claim 2 is characterized in that:
The shaft sleeve part internal face of this shell block is provided with a ring draw-in groove, the position limit socket of this rotating shaft location unit also has one and is covered on the supporting surface of this magnetic support and end face is provided with the ring cowling portion, one and this ring cowling portion outer circumferential face links and ring covers the ringwall portion that places this ring cowling portion lateral circle surface of this spacing hole, and one outwards protrude out and be arranged at this ringwall portion root edge and setting-in and be arranged at card wall portion in the ring draw-in groove of this shaft sleeve part, and this ringwall body is to paste with this shaft sleeve part internal face to touch setting.
4. radiation fan as claimed in claim 3 is characterized in that:
The position limit socket of this rotating shaft location unit, this shaft sleeve part match with this bearing member to define and set out a space.
5. radiation fan as claimed in claim 4 is characterized in that:
This bearing member is a ball bearing.
6. radiation fan as claimed in claim 4 is characterized in that:
This rotating shaft location unit also has a closure base, and this closure base has a portion that covers that establishes with this chimeric card of shell block portion, and one upwards protrudes out and is arranged at this and covers portion's end face and the chimeric ring cowling portion of this position limit socket and the embedding part between ringwall portion of setting into.
7. radiation fan as claimed in claim 6 is characterized in that:
This bearing member is an oil-impregnated bearing.
8. as claim 5 or 7 described radiation fans, it is characterized in that:
The rotating shaft of this impeller unit has a main shaft part that links with this wheel hub, and one be arranged at this main shaft part bottom and contact pushing away of this magnetic support and pull out the end, this pushes away and pulls out outer end diameter is convergent from top to bottom, this pushes away the maximum outside diameter that pulls out the end is greater than this main shaft part external diameter, this pushes away and pulls out end and this main shaft part and be provided with a ring and collude groove in the jointing place mutually, this rotating shaft location unit also has on most ring cowling portion end faces that uprightly are arranged at this position limit socket and around pushing away of this rotating shaft and pulls out the overhead kick post of end, and this overhead kick column top is to collude in this ring to collude the groove place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520011842 CN2791322Y (en) | 2005-04-21 | 2005-04-21 | Radiating fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520011842 CN2791322Y (en) | 2005-04-21 | 2005-04-21 | Radiating fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2791322Y true CN2791322Y (en) | 2006-06-28 |
Family
ID=36807392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520011842 Expired - Fee Related CN2791322Y (en) | 2005-04-21 | 2005-04-21 | Radiating fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2791322Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089792A (en) * | 2016-06-17 | 2016-11-09 | 联想(北京)有限公司 | A kind of rotary shaft and fan |
| CN109630429A (en) * | 2018-12-27 | 2019-04-16 | 佛山市三角洲电器科技有限公司 | A kind of drinking water water pump and its pump method |
| CN109672292A (en) * | 2018-12-27 | 2019-04-23 | 佛山市三角洲电器科技有限公司 | A kind of roller end positioning formula motor and its localization method |
-
2005
- 2005-04-21 CN CN 200520011842 patent/CN2791322Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089792A (en) * | 2016-06-17 | 2016-11-09 | 联想(北京)有限公司 | A kind of rotary shaft and fan |
| CN109630429A (en) * | 2018-12-27 | 2019-04-16 | 佛山市三角洲电器科技有限公司 | A kind of drinking water water pump and its pump method |
| CN109672292A (en) * | 2018-12-27 | 2019-04-23 | 佛山市三角洲电器科技有限公司 | A kind of roller end positioning formula motor and its localization method |
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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: 20060628 |