CN101494401B - The motor of the dust-proof and heat sinking function of tool and fan - Google Patents
The motor of the dust-proof and heat sinking function of tool and fan Download PDFInfo
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- CN101494401B CN101494401B CN200810004570.2A CN200810004570A CN101494401B CN 101494401 B CN101494401 B CN 101494401B CN 200810004570 A CN200810004570 A CN 200810004570A CN 101494401 B CN101494401 B CN 101494401B
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- housing
- motor
- rotating shaft
- fan
- stator
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- Motor Or Generator Cooling System (AREA)
Abstract
The present invention openly provides a kind of fan and its motor with dust-proof and heat sinking function.This motor comprises a housing, has a confined space, and is made up of a heat transfer material; One stator, is fixed in this housing; And a rotor, have a rotating shaft, be arranged in this stator, and one distal process is for outside this confined space, links with an impeller, wherein this stator and this rotor are contained in this confined space.
Description
Technical field
The present invention relates to a kind of motor, particularly relate to motor and the fan of the dust-proof and heat sinking function of a kind of tool.
Background technology
Motor is used to the parts converting electrical energy into mechanical energy, and in extensive use mechanical structure in daily life, such as fan.Motor of a great variety, it is broadly divided into inner rotor motor and external-rotor motor, and both main be position set by rotor be respectively inside motor or outside.
Please refer to shown in Fig. 1, existing external-rotor motor 1 comprises bearing pedestal 10, rotor 11, stator 12 and circuit board 13.Wherein this bearing pedestal 10 comprises a central siphon portion 101, and at least one bearing 102 is contained in central siphon portion 101.Rotor 11 comprises rotating shaft 111, iron-clad 112 and magnet ring 113, and rotating shaft 111 is embedded at iron-clad 112 and is arranged in central siphon portion 101 and bearing 102, and magnet ring 113 is located on the inwall of iron-clad 112.
Stator 12 comprises multiple coil groups, and the plurality of coil groups is linked to central siphon portion 101 and corresponding magnet ring 113 is arranged.Circuit board 13 is sheathed and be linked to central siphon portion 101, and is arranged on bearing pedestal 10, and is electrically connected with coil groups.By the sense of current of circuit board 13 drive coil group, make the magnet ring 113 of coil groups and rotor 11 produce magnetic fields, and then rotor 11 is rotated.
But the structure of this kind of external-rotor motor 1, because the gap collocation between each component is more, therefore its sealing is not enough, makes its protected effect poor.Such as there is clearance G between rotor 11 and bearing pedestal 10; therefore the foreign matter of external environment, aqueous vapor or external dust etc. easily enter the inside of external-rotor motor 1 via clearance G; cause motor exception or damage, thus reducing reliability and the useful life of external-rotor motor 1.
Summary of the invention
Because above-mentioned problem, the object of the present invention is to provide motor and the fan of the dust-proof and heat sinking function of a kind of tool.
Edge is, for reaching above-mentioned purpose, motor of the present invention, comprising:
Housing, has the confined space that does not comprise louvre, and is made up of a heat transfer material;
Enclosing cover, links with the extension of this housing, and forms accommodation space;
Drive unit or circuit board, in the accommodation space that the extension being arranged on this enclosing cover and this housing is formed jointly;
Stator, is fixed in this housing;
Rotor, has rotating shaft, is arranged in this stator, and one distal process is for outside this confined space, and wherein this stator and this rotor are contained in this confined space, and
Radiating fin, is arranged at the surface, extension of this housing;
Wherein this housing is made up of the first housing and the second housing, and this second housing has central siphon portion, and this rotating shaft is located in this central siphon portion.
For reaching above-mentioned purpose, fan of the present invention, comprising:
Motor, comprising:
Housing, has the confined space that does not comprise louvre, and is made up of a heat transfer material;
Enclosing cover, links with the extension of this housing, and forms accommodation space;
Drive unit or circuit board, in the accommodation space that the extension being arranged on this enclosing cover and this housing is formed jointly;
Stator, is fixed in this housing;
Rotor, has a rotating shaft, is arranged in this stator, and one distal process is for outside this confined space, and wherein this stator and this rotor are contained in this confined space; And
Radiating fin, is arranged at the surface, extension of this housing;
Impeller, is linked to this rotating shaft,
Wherein this housing is made up of the first housing and the second housing, and this second housing has central siphon portion, and this rotating shaft is located in this central siphon portion.
This housing is made up of one first housing and one second housing.This first housing and this second housing link by engaging, bonding or sealed mode.
This second housing has a central siphon portion, and this rotating shaft is located in this central siphon portion.This fan more comprises at least one bearing, is arranged in this central siphon portion, to support this rotating shaft.This fan more comprises a securing member, links with this rotating shaft, and with this bearing touch.
In addition, this fan comprises a drive unit, and be sheathed on this rotating shaft and be arranged in this confined space, and being electrically connected with this stator, this drive unit comprises a circuit board.
Preferably, this fan more comprises multiple radiating fin, is arranged at this surface of shell.
In addition, this fan more comprises an enclosing cover, links with this housing, a drive unit or circuit board can be arranged in this enclosing cover.
This impeller comprises a wheel hub and is located on the multiple blades around this wheel hub, and this hub surface has at least one through hole, and when this wheel rotation, extraneous cold air can suck via this through hole, by extremely extraneous for the heat dissipation of accumulating in this housing.This impeller is preferably a receded disk impeller or an aial flow impeller.
From the above, because motor of the present invention is contained in a confined space by stator, rotor and drive unit, this confined space is made up of the housing with thermal conducting function.Motor of the present invention has splendid seal, to reach available protecting motor internal component.In addition, more set up radiating fin in surface of shell, strengthen cooling surface area.Therefore, motor shell of the present invention can reach heat radiation and dust-proof effect simultaneously.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of existing external-rotor motor;
Fig. 2 is the three-dimensional exploded view of a kind of motor according to present pre-ferred embodiments;
The cutaway view of the fan that Fig. 3 connects to for the motor shown in Fig. 2 and impeller; And
Fig. 4 is the cutaway view of the fan according to another preferred embodiment of the present invention.
Main element symbol description
1,2 motor 10 bearing pedestals
101 central siphon portions 102,27a, 27b bearing
11,22 rotor 111,221 rotating shafts
112 iron-clad 113 magnet rings
12,21 stator 13 circuit boards
222 magnetic conduction shell 23 drive units
24 confined space 311 through holes
251 first housing 252 second housings
2521 central siphon portion 26 screws
29 securing member 3 impellers
31 wheel hub 32 blades
4 radiating fin 5 enclosing covers
Embodiment
Hereinafter with reference to relevant drawings, a kind of motor of foundation present pre-ferred embodiments is described and uses the fan of this motor.Wherein identical element is illustrated with identical reference marks.
Fig. 2 is the three-dimensional exploded view of the motor of display present pre-ferred embodiments.Motor 2 comprises stator 21, rotor 22 and a drive unit 23.
Drive unit 23 is electrically connected with this stator 21, and this drive unit 23 has a circuit board.In addition, rotor 22 comprises rotating shaft 221 and a magnetic conduction shell 222, and this rotating shaft 221 links or is embedded among magnetic conduction shell 222.This stator 21 is made up of silicon steel sheet and coil.
Motor 2 more comprises one first housing 251 and one second housing 252, the material of the first housing 251 and the second housing 252 can be copper, aluminium, metal or heat conducting material, and the two can engage, to bond or sealed mode links, to form a confined space 24 (as shown in Figure 3).At this, the first housing 251 and the second housing 252 sealed by screw 26.In addition, the first housing 251 has an accommodation space and has a central siphon portion 2521 with this stator 21 accommodating and rotor 22, second housing 252.When assembling, stator 21 and drive unit 23 are sheathed on central siphon portion 2521, and the rotating shaft 221 of rotor 22 is fed through central siphon portion 2521, and protrude from outside the second housing 252.This stator 21 is fixed in the first housing 251, and the heat produced when motor running dissipates to the external world by the first housing 251 and the second housing 252.
In addition, this motor 2 more comprises two bearing 27a, 27b, and when assembling, bearing 27a, 27b are sheathed on rotating shaft 221 and are arranged in central siphon portion 2521.This bearing 27a, 27b can be an oiliness bearing or a ball bearing.In addition, this motor 2 more comprises a securing member 29, and it in order to the position of location bearing 27b, and resists axial moment.
Fig. 3 is the fan cutaway view after the display motor 2 of Fig. 2 and an impeller 3 link.This impeller 3 is made up of with the blade 32 being located on this wheel hub 31 base portion peripheral a wheel hub 31.This motor 2 is positioned at below this wheel hub 31, and part is contained in this wheel hub 31.The rotating shaft 221 protruded from outside the second housing 252 links with this wheel hub 31.This wheel hub 31 surface has at least one through hole 311, and when this impeller 3 rotates, extraneous cold air can be forced to suck via this through hole 311, by extremely extraneous for the heat dissipation of accumulating in the first housing 251 and the second housing 252 surface, to reach radiating effect.This impeller 3 can be a receded disk impeller or an aial flow impeller.
Separately refer to Fig. 4, the fan of another preferred embodiment of its display the present invention, its structure is roughly similar to the fan shown in above-mentioned Fig. 3, and both differences are that the surface of the first housing 251 has more multiple radiating fin 4, can strengthen the surface area of heat radiation, the heat dissipation produced by motor is to extraneous.In addition, this fan more comprises an enclosing cover 5, is linked to this first housing 251, with the drive unit of accommodating motor or circuit board 23 in the inner.
In sum, fan of the present invention and motor are contained in a confined space by stator, rotor and drive unit, and confined space can be made up of the housing with thermal conducting function.Compare with prior art, motor of the present invention has splendid seal, to reach available protecting motor internal component, and then improves reliability and the object in useful life.In addition, more set up radiating fin in surface of shell, strengthen cooling surface area.Therefore, the housing of fan of the present invention and motor can reach heat radiation and dust-proof effect simultaneously.
The foregoing is only illustrative, but not be restricted person.Anyly do not depart from spirit of the present invention and category, and to its equivalent modifications of carrying out or change, all should comprise in the appended claims.
Claims (11)
1. a motor, comprising:
Housing, has the confined space that does not comprise louvre, and is made up of a heat transfer material;
Enclosing cover, links with the extension of this housing, and forms accommodation space;
Drive unit or circuit board, in the accommodation space that the extension being arranged on this enclosing cover and this housing is formed jointly;
Stator, is fixed in this housing;
Rotor, has rotating shaft, is arranged in this stator, and one distal process is for outside this confined space, and wherein this stator and this rotor are contained in this confined space, and
Radiating fin, is arranged at the surface, extension of this housing;
Wherein this housing is made up of the first housing and the second housing, and this second housing has central siphon portion, and this rotating shaft is located in this central siphon portion.
2. motor as claimed in claim 1, wherein this first housing and this second housing link with engaging, bonding or sealed mode.
3. motor as claimed in claim 1, it more comprises:
At least one bearing, is arranged in this central siphon portion, to support this rotating shaft; And
Securing member, links with this rotating shaft, to locate this bearing.
4. motor as claimed in claim 1, it more comprises multiple radiating fin, is arranged at this surface of shell.
5. a fan, comprising:
Motor, comprising:
Housing, has the confined space that does not comprise louvre, and is made up of a heat transfer material;
Enclosing cover, links with the extension of this housing, and forms accommodation space;
Drive unit or circuit board, in the accommodation space that the extension being arranged on this enclosing cover and this housing is formed jointly;
Stator, is fixed in this housing;
Rotor, has a rotating shaft, is arranged in this stator, and one distal process is for outside this confined space, and wherein this stator and this rotor are contained in this confined space; And
Radiating fin, is arranged at the surface, extension of this housing;
Impeller, is linked to this rotating shaft,
Wherein this housing is made up of the first housing and the second housing, and this second housing has central siphon portion, and this rotating shaft is located in this central siphon portion.
6. fan as claimed in claim 5, wherein this first housing and this second housing link with engaging, bonding or sealed mode.
7. fan as claimed in claim 5, it more comprises: at least one bearing, is arranged in this central siphon portion, to support this rotating shaft; And
Securing member, links with this rotating shaft, to locate this bearing.
8. fan as claimed in claim 5, it more comprises multiple radiating fin, is arranged at this surface of shell.
9. fan as claimed in claim 5, wherein this impeller comprises wheel hub and is located on the multiple blades around this wheel hub, and wherein this hub surface has at least one through hole, when this wheel rotation, extraneous cold air can suck via this through hole, by extremely extraneous for the heat dissipation of accumulating in this housing.
10. fan as claimed in claim 5, wherein this heat transfer material is metal.
11. fans as claimed in claim 5, wherein this heat transfer material is copper or aluminium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810004570.2A CN101494401B (en) | 2008-01-25 | 2008-01-25 | The motor of the dust-proof and heat sinking function of tool and fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810004570.2A CN101494401B (en) | 2008-01-25 | 2008-01-25 | The motor of the dust-proof and heat sinking function of tool and fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101494401A CN101494401A (en) | 2009-07-29 |
| CN101494401B true CN101494401B (en) | 2016-04-06 |
Family
ID=40924850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810004570.2A Active CN101494401B (en) | 2008-01-25 | 2008-01-25 | The motor of the dust-proof and heat sinking function of tool and fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101494401B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102594023B (en) * | 2012-01-17 | 2015-03-11 | 东莞永立电机有限公司 | Self-radiating motor |
| DE102014225688B3 (en) * | 2014-12-12 | 2016-03-31 | Ziehl-Abegg Se | Arrangement of an impeller on a rotating part and method for producing the arrangement |
| CN109742892A (en) * | 2019-03-18 | 2019-05-10 | 开勒环境科技（上海）股份有限公司 | A kind of radiator structure of external rotor electric machine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101038003A (en) * | 2006-03-15 | 2007-09-19 | 台达电子工业股份有限公司 | Fan, motor and blade thereof |
| CN101090210A (en) * | 2006-06-12 | 2007-12-19 | 台达电子工业股份有限公司 | Fan and its inner rotor motor |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19513134A1 (en) * | 1995-04-07 | 1996-10-10 | Aeg Kleinmotoren Gmbh | Electrical machine esp. permanent magnet generator for generating power in series with battery of electrically powered vehicle |
| GB2355598B (en) * | 1999-10-08 | 2004-06-02 | Nmb | An external rotor brushless DC motor |
| CN2697358Y (en) * | 2004-01-19 | 2005-05-04 | 陆林 | Dc fan motor |
| CN100548098C (en) * | 2006-07-10 | 2009-10-07 | 台达电子工业股份有限公司 | Fan heat radiation module |
-
2008
- 2008-01-25 CN CN200810004570.2A patent/CN101494401B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101038003A (en) * | 2006-03-15 | 2007-09-19 | 台达电子工业股份有限公司 | Fan, motor and blade thereof |
| CN101090210A (en) * | 2006-06-12 | 2007-12-19 | 台达电子工业股份有限公司 | Fan and its inner rotor motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101494401A (en) | 2009-07-29 |
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| C14 | Grant of patent or utility model | ||
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