CN204371718U - Heat radiation fan - Google Patents
Heat radiation fan Download PDFInfo
- Publication number
- CN204371718U CN204371718U CN201420799389.6U CN201420799389U CN204371718U CN 204371718 U CN204371718 U CN 204371718U CN 201420799389 U CN201420799389 U CN 201420799389U CN 204371718 U CN204371718 U CN 204371718U
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- metal base
- radiation fan
- fan
- scope
- 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.)
- Withdrawn - After Issue
Links
- 230000005855 radiation Effects 0.000 title claims description 33
- 230000005291 magnetic effect Effects 0.000 claims abstract description 52
- 239000002184 metal Substances 0.000 claims abstract description 51
- 230000002093 peripheral effect Effects 0.000 abstract 2
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 230000017525 heat dissipation Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 239000004568 cement Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- NHDHVHZZCFYRSB-UHFFFAOYSA-N pyriproxyfen Chemical compound C=1C=CC=NC=1OC(C)COC(C=C1)=CC=C1OC1=CC=CC=C1 NHDHVHZZCFYRSB-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Motor Or Generator Cooling System (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
A heat dissipation fan comprises a fan frame, a stator and a fan wheel. The fan frame is provided with a metal base, and the metal base is provided with a shaft connecting part; the stator is combined with the fan frame; the fan wheel comprises a hub, a plurality of blades and a permanent magnet, wherein the hub is rotatably combined with the coupling part of the fan frame, the blades are combined with the peripheral wall of the outer side of the hub, and the permanent magnet is arranged on the peripheral wall of the inner side of the hub; the metal base is provided with a through part in the radial rotation range, and the through part is positioned outside the magnetic attraction range. The magnetic lines of force generated by the permanent magnet can be dispersed by the hollow part, so as to reduce the resistance when the fan wheel rotates.
Description
Technical field
The utility model is about a kind of radiation fan, especially a kind ofly can do in order to the radiation fan of stable rotation by magnetic.
Background technique
Please refer to shown in Fig. 1, known radiation fan 9 roughly comprises metal base 91, stator 92 and an impeller 93.There are a central siphon 911 in these metal base 91 central authorities; This stator 92 is incorporated into the outer perimeter wall of this central siphon 911; This impeller 93 comprises wheel hub 931 and a permanent magnet 932, this wheel hub 931 is rotatably incorporated into this central siphon 911 by a rotating shaft 933, this permanent magnet 932 is arranged at the inner side perisporium of this wheel hub 931, and has an air gap between this permanent magnet 932 and this stator 92; By this, when this radiation fan 9 start, can input current to this stator 92, make this stator 92 drive this impeller 93 to rotate start by this air gap.Wherein being similar to detailed construction composition and the start principle of described known radiation fan 9, is be exposed in No. I447304th, TaiWan, China " fan frame base and have the radiation fan of this fan frame base " patent of invention.
Above-mentioned impeller 93 rotating shaft 933 axially, there is between this wheel hub 931 and this metal base 91 a radial rotary scope D1, because this permanent magnet 932 is arranged at the inner side perisporium of this wheel hub 931, therefore, this permanent magnet 932 is positioned at this radial rotary scope D1.Wherein have a magnetic scope D2 between this permanent magnet 932 and this metal base 91, this permanent magnet 932, by this magnetic scope D2 and this metal base 91 magnetic mutually, impels this impeller 93 steadily to rotate to utilize both magnetic effects.
But, please refer to shown in Fig. 2, because this metal base 91 has magnetic conduction effect, the magnetic line of force M that above-mentioned permanent magnet 932 produces can by this metal base 91 in the both sides of this magnetic scope D2, the magnetic line of force M that permanent magnet 932 is produced comparatively assembles, and therefore, causes this permanent magnet 932 excessive with this metal base 91 axial magnetic suction between the two, excessive axial magnetic suction easily increases resistance when this impeller 93 rotates on the contrary, and then affects the running quality of radiation fan.
Model utility content
" hollow part " that define in full below the utility model refers to that metal base fails the position of magnetic corresponding to permanent magnet, this hollow part can be as designs such as open-works, or also can be by plastic cement material open-work coated wholly or in part, the utility model is not limited.
The utility model provides a kind of radiation fan, and this radiation fan, in the process utilizing magnetic effect to make impeller steadily rotate, more effectively can avoid the resistance increasing impeller rotation because magnetic attraction is excessive.
For solving the problems of the technologies described above, the utility model provides a kind of radiation fan, comprising: a fan frame, and this fan frame has a metal base, and this metal base is provided with an axis part; A stator, this stator is incorporated into above-mentioned fan frame; And an impeller, this impeller comprises a wheel hub, several blade and a permanent magnet, this wheel hub is rotatably incorporated into the axis part of this fan frame, this several blade is incorporated into the outer perimeter wall of this wheel hub, this permanent magnet is arranged at the inner side perisporium of this wheel hub, and has an air gap between this permanent magnet and described stator; There is between wherein said wheel hub and described metal base a radial rotary scope, described stating between permanent magnet and this metal base has a magnetic scope, this metal base is provided with a hollow part within the scope of this radial rotary, and this hollow part is positioned at outside this magnetic scope.
In an embodiment of the present utility model, wherein, described hollow part is several open-work.
In an embodiment of the present utility model, wherein, the inner side perisporium of described several open-work has an external side brim respectively, this external side brim is that the inner side perisporium of this open-work is apart from position farthest, this axis part, described permanent magnet has towards this axis part inner side surface, at described impeller axially, the inner side surface of this permanent magnet trims the external side brim in this hollow part.
In an embodiment of the present utility model, wherein, described metal base has a upper surface toward described wheel hub, and this upper surface corresponds in this radial rotary scope has a region area, and the distribution area of this hollow part accounts for nine ten ten to percent 2 percent of this region area.
In an embodiment of the present utility model, wherein, described metal base is separately provided with several auxiliary air inlet mouth, and described magnetic scope is between described hollow part and this auxiliary air inlet mouth.
In an embodiment of the present utility model, wherein, the inner side perisporium of described several auxiliary air inlet mouth has an inner side edge respectively, and this inner side edge is the inner side perisporium of this auxiliary air inlet mouth position nearest apart from this axis part, and this inner side edge is positioned at this radial rotary scope.
In an embodiment of the present utility model, wherein, described permanent magnet has an outer side surface of this axis part dorsad, and at described impeller axially, the outer side surface of this permanent magnet trims the inner side edge in described auxiliary air inlet mouth.
The design of the hollow part of the utility model radiation fan, the magnetic line of force that above-mentioned permanent magnet can be made to produce comparatively disperses, to reduce the axial magnetic suction between this permanent magnet and above-mentioned metal base, and then reduce resistance when this impeller rotates, reach the effect promoting smooth movements.
Accompanying drawing explanation
Fig. 1 is the assembled sectional view of existing radiation fan.
Fig. 2 is the partial sectional view of existing radiation fan.
Fig. 3 is the three-dimensional exploded view of the utility model radiation fan.
Fig. 4 is the assembled sectional view of the utility model radiation fan.
Fig. 5 is the partial sectional view of the utility model radiation fan.
Fig. 6 is the schematic top plan view of the utility model radiation fan.
Fig. 7 is the schematic top plan view that the utility model radiation fan is separately provided with auxiliary air inlet mouth.
Fig. 8 is the partial sectional view that the utility model radiation fan is separately provided with auxiliary air inlet mouth.
(the utility model)
1 fan frame 11 metal base 111 upper surface
112 auxiliary air inlet mouth 1121 inner side edge 12 side wall part
121 wind inlet 122 exhaust outlet 13 axis parts
14 cappings 141 are bored a hole 15 hollow parts
151 external side brim 2 stator 3 impellers
31 wheel hub 32 blade 33 permanent magnets
331 inner side surface 332 outer side surface D1 radial rotary scopes
The D2 magnetic scope M1 magnetic line of force M2 magnetic line of force
(existing)
9 radiation fan 91 metal base 911 central siphons
92 stator 93 impeller 931 wheel hubs
932 permanent magnet 933 rotating shaft D 1 radial rotary scopes
The D2 magnetic scope M magnetic line of force.
Embodiment
For above-mentioned and other object of the present utility model, feature and advantage can be become apparent, embodiment of the present utility model cited below particularly, and coordinate institute's accompanying drawings, be described in detail as follows.
Please refer to shown in Fig. 3 and Fig. 4, the utility model radiation fan can comprise fan frame 1, stator 2 and an impeller 3.This fan frame 1 inside can supply this stator 2 and the accommodating combination of this impeller 3, and this stator 2 rotates start in order to drive this impeller 3.
Above-mentioned fan frame 1 has the metal base 11 be made up of permeability magnetic material, and this metal base 11 is provided with side wall part 12 and an axis part 13, and this side wall part 12 is provided with wind inlet 121 and an exhaust outlet 122; Wherein this fan frame 1 can be the various difform hollow frame structure that can supply said stator 2 and the accommodating combination of above-mentioned impeller 3, and this axis part 13 can be metal central siphon or plastic cement central siphon, and the utility model is not limited.In the present embodiment, this fan frame 1 separately can comprise a capping 14, this capping 14 is provided with a perforation 141, and this capping 14 can be incorporated into the wind inlet 121 of this side wall part 12, this perforation 141 is communicated to the inside of this metal base 11 via this wind inlet 121, and the component being assembled in this fan frame 1 inside to utilize this capping 14 to prevent is deviate from.
Said stator 2 is incorporated into above-mentioned fan frame 1, and this stator 2 can be selected to be incorporated into the axis part 13 of this fan frame 1 or the surface of this metal base 11, and the utility model is not limited.In the present embodiment, this stator 2 is sheathed on the periphery wall of the axis part 13 of this fan frame 1, and wherein this stator 2 is the various structural designs that this impeller 3 can be driven to rotate.
Above-mentioned impeller 3 comprises a wheel hub 31, several blade 32 and a permanent magnet 33, this wheel hub 31 is rotatably incorporated into the axis part 13 of above-mentioned fan frame 1, this several blade 32 is incorporated into the outer perimeter wall of this wheel hub 31, this permanent magnet 33 is arranged at the inner side perisporium of this wheel hub 31, and has an air gap between this permanent magnet 33 and said stator 2.
Again, at above-mentioned impeller 3 axially, have a radial rotary scope D1 between this wheel hub 31 and this metal base 11, this permanent magnet 33 is positioned at this radial rotary scope D1.Wherein between this permanent magnet 33 and this metal base 11, there is a magnetic scope D2.Whereby, this metal base 11 is provided with a hollow part 15 in this radial rotary scope D1, and this hollow part 15 is positioned at outside this magnetic scope D2.
During the start of the utility model radiation fan, input current, to said stator 2, makes this stator 2 produce alternating magnetic field by the air gap between above-mentioned permanent magnet 33, rotates start in order to drive above-mentioned impeller 3; Wherein by the magnetic scope D2 between this permanent magnet 33 and above-mentioned metal base 11, this permanent magnet 33 and this metal base 11 magnetic mutually, steadily rotates to impel this impeller 3.
Please refer to shown in Fig. 5, by the magnetic conduction effect of above-mentioned metal base 11, as the magnetic line of force M1 that above-mentioned permanent magnet 33 produces, M2 passes through this metal base 11 when the relative both sides of this magnetic scope D2, because this metal base 11 is provided with this hollow part 15 in the side of this magnetic scope D2, therefore, this permanent magnet 33 is by the magnetic line of force M1 of this hollow part 15 side, can comparatively be disperseed compared to this permanent magnet 33 by the magnetic line of force M2 of the side not being provided with this hollow part 15, whereby, the utility model can utilize this hollow part 15 to prevent this permanent magnet 33 excessive with this metal base 11 axial magnetic suction between the two, and then the resistance reduced when above-mentioned impeller 3 rotates, with the running quality of heat radiation fan, in addition, by the design of this hollow part 15, although the axial magnetic suction between this permanent magnet 33 and this metal base 11 can be reduced, but still be unlikely to affect the magnetic effect between this permanent magnet 33 and this metal base 11, therefore this impeller 3 can be impelled equally steadily to rotate.
Again, please refer to shown in Fig. 4 and Fig. 5, above-mentioned hollow part 15 can be several open-work, the inner side perisporium of this several open-work has an external side brim 151 respectively, this external side brim 151 is that the inner side perisporium of this open-work is apart from this position farthest, axis part 13, above-mentioned permanent magnet 33 has the inner side surface 331 towards this axis part 13, and at above-mentioned impeller 3 axially, the inner side surface 331 of this permanent magnet 33 is compared with the external side brim 151 of Jia Qieqi in this hollow part 15; Whereby, this permanent magnet 33 can more be disperseed by the magnetic line of force M1 of this hollow part 15 side, to reduce resistance when this impeller 3 rotates again further.
Again, please refer to shown in Fig. 6, above-mentioned metal base 11 has the upper surface 111 toward above-mentioned wheel hub 31, this upper surface 111 (is namely positioned at the area of the axis projection scope of wheel hub 31 corresponding to having a region area in this radial rotary scope D1, and comprise hollow part 15), the distribution area of this hollow part 15 is better accounts for nine ten ten to percent 2 percent of this region area; Whereby, having outside required magnetic effect between above-mentioned permanent magnet 33 and this metal base 11 based on guaranteeing, this hollow part 15 can be utilized further effectively to reduce resistance when above-mentioned impeller 3 rotates.
Again, shown in Fig. 7 and Fig. 8, above-mentioned metal base 11 can be provided with several auxiliary air inlet mouth 112, and the magnetic scope D2 between above-mentioned permanent magnet 33 and this metal base 11 is better between above-mentioned hollow part 15 and this auxiliary air inlet mouth 112; Whereby, this hollow part 15 is respectively equipped with in relative two sides of this magnetic scope D2 and this auxiliary air inlet mouth 112(can be considered another hollow part) due to this metal base 11, therefore, this permanent magnet 33 all can comparatively be disperseed, more effectively to reduce resistance when this impeller 3 rotates by the magnetic line of force M1, M2 of this magnetic scope D2 bis-side.Wherein this several auxiliary air inlet mouth 112 can be selected to be positioned at outside this radial rotary scope D1; Or, the inner side perisporium of this several auxiliary air inlet mouth 112 has an inner side edge 1121 respectively, this inner side edge 1121 be the inner side perisporium of this auxiliary air inlet mouth 112 apart from this immediate position, axis part 13, and this inner side edge 1121 is better is positioned at this radial rotary scope D1; Whereby, this permanent magnet 33 has an outer side surface 332 of this axis part 13 dorsad, at above-mentioned impeller 3 axially, and the better inner side edge 1121 trimmed in this auxiliary air inlet mouth 112 of the outer side surface 332 of this permanent magnet 33; Whereby, this permanent magnet 33 can more be disperseed by the magnetic line of force M2 of this auxiliary air inlet mouth 112 side, to reduce resistance when this impeller 3 rotates again further.
In sum, the utility model radiation fan is by the design of above-mentioned hollow part, the magnetic line of force M1, the M2 that above-mentioned permanent magnet 33 really can be made to produce comparatively disperse, to reduce the axial magnetic suction between this permanent magnet 33 and above-mentioned metal base 11, and then the resistance reduced when this impeller 3 rotates, reach the effect promoting smooth movements.
Although the utility model has utilized above-mentioned preferred embodiment to disclose; so itself and be not used to limit this creation; anyly have the knack of this those skilled in the art and do not departing within the utility model spirit and scope; relative above-described embodiment carries out various change and revises the technology category still belonging to the utility model and protect, and therefore protection domain of the present utility model is when being as the criterion depending on the accompanying claim person of defining.
Claims (7)
1. a radiation fan, is characterized in that comprising:
A fan frame, this fan frame has a metal base, and this metal base is provided with an axis part;
A stator, this stator is incorporated into described fan frame; And an impeller, this impeller comprises a wheel hub, several blade and a permanent magnet, this wheel hub is rotatably incorporated into the axis part of this fan frame, this several blade is incorporated into the outer perimeter wall of this wheel hub, this permanent magnet is arranged at the inner side perisporium of this wheel hub, and has an air gap between this permanent magnet and described stator;
There is between wherein said wheel hub and described metal base a radial rotary scope, there is between described permanent magnet and this metal base a magnetic scope, this metal base is provided with a hollow part within the scope of this radial rotary, and this hollow part is positioned at outside this magnetic scope.
2. radiation fan as claimed in claim 1, it is characterized in that, wherein, described hollow part is several open-work.
3. radiation fan as claimed in claim 2, it is characterized in that, wherein, the inner side perisporium of described several open-work has an external side brim respectively, this external side brim is that the inner side perisporium of this open-work is apart from position farthest, this axis part, described permanent magnet has towards this axis part inner side surface, and at described impeller axially, the inner side surface of this permanent magnet trims the external side brim in this hollow part.
4. the radiation fan as described in any one of claims 1 to 3, it is characterized in that, wherein, described metal base has a upper surface toward described wheel hub, this upper surface corresponds in this radial rotary scope has a region area, and the distribution area of this hollow part accounts for nine ten ten to percent 2 percent of this region area.
5. the radiation fan as described in any one of claims 1 to 3, is characterized in that, wherein, described metal base is separately provided with several auxiliary air inlet mouth, and described magnetic scope is between described hollow part and this auxiliary air inlet mouth.
6. radiation fan as claimed in claim 5, it is characterized in that, wherein, the inner side perisporium of described several auxiliary air inlet mouth has an inner side edge respectively, this inner side edge is the inner side perisporium of this auxiliary air inlet mouth position nearest apart from this axis part, and this inner side edge is positioned at this radial rotary scope.
7. radiation fan as claimed in claim 6, it is characterized in that, wherein, described permanent magnet has an outer side surface of this axis part dorsad, and at described impeller axially, the outer side surface of this permanent magnet trims the inner side edge in described auxiliary air inlet mouth.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW103142828A TWI537479B (en) | 2014-12-09 | 2014-12-09 | Dissipating fan |
| TW103142828 | 2014-12-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204371718U true CN204371718U (en) | 2015-06-03 |
Family
ID=53327942
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410781050.8A Active CN105782081B (en) | 2014-12-09 | 2014-12-16 | Heat radiation fan |
| CN201420799389.6U Withdrawn - After Issue CN204371718U (en) | 2014-12-09 | 2014-12-16 | Heat radiation fan |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410781050.8A Active CN105782081B (en) | 2014-12-09 | 2014-12-16 | Heat radiation fan |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN105782081B (en) |
| TW (1) | TWI537479B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782081A (en) * | 2014-12-09 | 2016-07-20 | 建准电机工业股份有限公司 | Heat radiation fan |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107327389A (en) * | 2017-07-31 | 2017-11-07 | 无锡双翼汽车环保科技有限公司 | Air-flow point injection device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI329403B (en) * | 2005-04-19 | 2010-08-21 | Sunonwealth Electr Mach Ind Co | Rotor balance structure for motor |
| US7868493B2 (en) * | 2009-04-13 | 2011-01-11 | Sunonwealth Electric Machine Industry Co., Ltd | Motor having rotation balancing member |
| TWI467896B (en) * | 2013-01-24 | 2015-01-01 | Sunonwealth Electr Mach Ind Co | Motor with easy-starting structure and base thereof |
| TWI516685B (en) * | 2013-06-19 | 2016-01-11 | 建準電機工業股份有限公司 | Balanceable fan |
| CN203453139U (en) * | 2013-08-01 | 2014-02-26 | 李明烈 | Fan with fan wheel pressed down by magnetic attraction |
| TWI537479B (en) * | 2014-12-09 | 2016-06-11 | 建準電機工業股份有限公司 | Dissipating fan |
-
2014
- 2014-12-09 TW TW103142828A patent/TWI537479B/en active
- 2014-12-16 CN CN201410781050.8A patent/CN105782081B/en active Active
- 2014-12-16 CN CN201420799389.6U patent/CN204371718U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782081A (en) * | 2014-12-09 | 2016-07-20 | 建准电机工业股份有限公司 | Heat radiation fan |
| CN105782081B (en) * | 2014-12-09 | 2018-09-14 | 建准电机工业股份有限公司 | Heat radiation fan |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201621174A (en) | 2016-06-16 |
| TWI537479B (en) | 2016-06-11 |
| CN105782081A (en) | 2016-07-20 |
| CN105782081B (en) | 2018-09-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: The new Taiwan China Ya Lu Kaohsiung City No. 30 Lane 296 Patentee after: Jianzhun Electric Motor Industry Co., Ltd. Address before: Are China Taiwan Lingya Kaohsiung No. 120 12 floor 1 Patentee before: Jianzhun Electric Motor Industry Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20150603 Effective date of abandoning: 20180914 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20150603 Effective date of abandoning: 20180914 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |