CN100461589C - Mangnetic force positioning motor and its fan - Google Patents
Mangnetic force positioning motor and its fan Download PDFInfo
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- CN100461589C CN100461589C CNB2005100876011A CN200510087601A CN100461589C CN 100461589 C CN100461589 C CN 100461589C CN B2005100876011 A CNB2005100876011 A CN B2005100876011A CN 200510087601 A CN200510087601 A CN 200510087601A CN 100461589 C CN100461589 C CN 100461589C
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Abstract
This invention relates to a fan motor, which sets a magnet at the center of inside, utilizes the attraction character among metal substances of the fan stator to keep the rotor at the fixed position while rotating, or sets a magnet at the stator part of the fan and utilizes the character of attracting each other of the magnet and the rotor metal to keep the rotor at the fixed position while operating to reduce vibration of the rotor.
Description
Technical field
Relevant a kind of Mangnetic force positioning motor of the present invention and fan, particularly relevant a kind of magnet that is arranged on rotation section or stator department that has, its couplings that can and have relative position with it produces the Mangnetic force positioning motor and the fan of attraction.
Background technology
Electronic component running speed is more and more faster now, and the heat energy that is produced also increases thereupon, therefore also just unavoidablely does bigger and bigger in order to the fan of heat radiation, but the situation benefit shape of rocking when causing the motor rotor running is serious.
See also Fig. 1, it is a kind of schematic diagram of existing radiator fan, this fan motor include a rotation section 1, by silicon steel sheet and twine stator department 2 that the coil in its outside forms, respectively around a ball bearing 3 and an oiliness bearing 4 of accepting these rotor 10 tops, 1 axle center and bottom.
The lateral wall of this motor rotor 1 has plurality of vanes 11, madial wall has a tape 12, this tape 12 can be coupled with the silicon steel sheet of this stator department 2, utilize attraction and difference in height between this tape 12 and silicon steel sheet, can produce magnetic biasing, and then produce downward attraction, in order to overcome the buoyancy that this motor rotor 1 is produced when the high speed rotating.Though the fan of the bearing arrangement of this kind tool one ball bearing and an oiliness bearing is widely used, but it is inapplicable for the fan that volume is big and thick, this is because after the change of fan volume is huge, it is heavy that the weight of its rotor also can and then become, only depend on the attraction between tape and silicon steel sheet then to seem not enough, when rotor high-speed turns round, will produce the phenomenon of floating probably.
Another kind has radiator fan now then as shown in Figure 2, and this fan motor and Fig. 1 main difference part are that this fan motor is to utilize two ball bearings 3 respectively around the top and the bottom of accepting this rotor 1 axle center 10; In addition, near this rotor 1 center and 3 on ball bearing accepting these 10 tops, axle center be provided with a spring 5, in order to connect each other, this spring 5 can produce precompression, when making this fan desire to float off at high speed rotating, the restoring force that utilizes spring to provide can remain on position originally, reduces the situation of rocking.Though the structure of the two ball bearings of this kind can be applicable to the fan that volume is bigger, yet ball bearing costs an arm and a leg, utilize two ball bearings significantly to improve the manufacturing cost of fan far and away, want cost-effective manufacturing guiding, run in the opposite direction with present so-called low margin age.
Therefore, how can not only to keep the stable of fan running, and can improve manufacturing cost not significantly, be the purpose and the emphasis of the present invention's development having to strengthen under the trend of radiator fan for promoting radiating effect.
Summary of the invention
Main purpose of the present invention is to be to provide a kind of fan stable operation and can low-cost motor and the fan of making thereof of keeping.
A kind of Mangnetic force positioning motor is provided according to an aspect of the present invention, and it comprises: a base; One stator department is sheathed on this base, has a plurality of silicon steel sheets in this stator department; One rotation section, the center are provided with an axle center, and axially extend to this stator department center in this axle center; One tape is set in this rotation section, is looped around this stator department outside; And a magnetic element, be arranged at inboard center, this rotation section, and be surrounded on this axle center, this magnetic element and this silicon steel sheet generation magnetic attraction.
A kind of Mangnetic force positioning motor is provided according to a further aspect of the invention, and it comprises: a base; One stator department is sheathed on this base; One rotation section, the center are provided with an axle center, and axially extend to this stator department center in this axle center; One tape is set in this rotation section, is looped around this stator department outside; One magnetic element is arranged at the axial surface of this stator department center, and is surrounded on this axle center; One bearing arrangement, it is arranged within this base, and around accepting this axle center; And a magnetic couplings element, be fixed in the inboard of this rotation section, in order to produce magnetic force with this magnetic element.
A kind of fan with the magnetic force location is provided according to a further aspect of the present invention, and it comprises a housing, a rotation section and a stator department; This stator department is the side-lower that is positioned at this rotation section, and coupled to each other, and this stator department and rotation section all are to be placed in this housing inside.This center, rotation section has an axle center and extends axially to this stator department from this rotation section, and this rotation section lateral wall periphery is provided with plurality of vanes, and madial wall then is provided with the tape that rounds.This stator is made of a formed core part of silicon steel sheet and a coil around this core part outside by one.Be characterized in: inboard center is provided with a phase magnet around this axle center in this rotation section, via suitable Position Design, the silicon steel sheet of this phase magnet and this stator department can produce suitable attraction, in order to overcome the phenomenon that floats off when this rotation section when running up.
Moreover, also can above this stator department center, be provided with one around this axle center and corresponding magnet or other metal materials that can attract mutually with above-mentioned phase magnet, can adapt to the fan of different size.
In addition, also this phase magnet can be arranged at the top of this stator department center and, and metal material be set, have identical function equally in corresponding rotation section around this axle center.
In addition, inner surface at this rotor also can be by the coating of iron-clad institute fully, and this phase magnet is arranged at the top of this stator department center and around this axle center, so also can reaches the purpose of fixing this rotor-position by the attraction between this phase magnet and this iron-clad.
The present invention adopt above-mentioned Mangnetic force positioning motor fan, inboard center is provided with a magnet in the rotation section of fan for it, utilizes attractive characteristic between the metallics of this magnet and this fan stator, can make this rotation section be maintained fixed the position in the running; Certainly also a magnet can be set at the stator department of this fan, utilize the attractive characteristic of intermetallic of this magnet and this fan rotation section, the effect that this rotation section is maintained fixed the position in the running can be reached equally, the friction of the rocking of this rotation section, vibrations and axle center and bearing can be reduced.Utilize the present invention, can not use the structure of two ball bearings, and use only a ball bearing and an oiliness bearing, or only an oiliness bearing or only a ball bearing, even do not contain the structure of bearing, with the reduction manufacturing cost.
For above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by a preferred embodiment, and conjunction with figs. is elaborated:
Description of drawings
Fig. 1 is an existing radiator fan generalized section;
Fig. 2 is another kind of existing radiator fan generalized section;
Fig. 3 is the generalized section of fan motor of the present invention;
Fig. 4 is the decomposing schematic representation of Fig. 3;
Fig. 5 A is a radiator fan generalized section of the present invention;
Fig. 5 B is the partial enlarged drawing of Fig. 5 A;
Fig. 6 is the decomposing schematic representation of Fig. 5 A;
Fig. 7 A is for utilizing the schematic diagram that colludes bar stationary positioned magnet;
Fig. 7 B is the decomposing schematic representation of Fig. 7 A;
Fig. 8 A is the fixing schematic diagram of a groove that phase magnet utilizes carrier; And
Fig. 8 B is the rotation section appearance profile in order to stationary positioned magnet of Fig. 8 A.
Fig. 8 C looks schematic diagram on the phase magnet of Fig. 8 A.
Fig. 9 A is that phase magnet is in the fixing schematic diagram of carrier utilization contact interference mode.
Fig. 9 B is the decomposing schematic representation of Fig. 9 A.
Figure 10 A is that phase magnet utilizes the fixing schematic diagram of trip mode in carrier.
Figure 10 B is the decomposing schematic representation of Figure 10 A.
Figure 11 A is that phase magnet utilizes the fixing schematic diagram of adhesive agent in carrier.
Figure 11 B is the decomposing schematic representation of Figure 11 A.
Figure 12～19 are respectively the schematic diagrames of different embodiments of the invention.
Embodiment
See also Fig. 3,4, fan motor of the present invention includes a rotation section 6, a stator department 7, a base 8 and establishes in order to ring respectively and accept a ball bearing 3 and the oiliness bearing 4 that these 6 axle center 60, rotation section do not exist together; Wherein this axle center 60 is that inboard center extends axially to this stator department 7 from this rotation section.This stator department 7 is positioned at the side-lower of this rotation section 6, and coupled to each other; And this base 8 is used for supporting this axle center 60, can make this stator department 7 be socketed on its outside, and accept this ball bearing 3 and oiliness bearing 4 respectively in its inboard.
This stator department 7 one is made of a silicon steel sheet and a coil around this silicon steel sheet outside.The madial wall ring of this rotation section 6 is established a tape 61, and this tape 61 can be had an effect with the magnetic force that these stator department 2 energising backs are produced and rotate.
6 inboard centers, rotation section in this fan motor also are provided with a phase magnet 62 around this axle center 60, via suitable Position Design, this phase magnet 62 can produce suitable attraction with the silicon steel sheet of this stator department 7, can be in order to overcome the phenomenon that shakes and float off when this rotation section 6 when running up.
See also Fig. 5 A, 5B and Fig. 6, it shows the situation that above-mentioned motor is applied to radiator fan, and this radiator fan comprises a housing 9, a rotation section 6 and a stator department 7; Wherein, the bottom of this housing includes aforesaid base 8, and the lateral wall periphery of this rotation section 6 also is provided with plurality of vanes 63, and this rotation section 6 and stator department 7 are placed in this housing 9.And this rotation section 6, phase magnet 62, stator department 7 and in order to the ball bearing 3 and the oiliness bearing 4 in the axle center 60 of accepting this rotation section 6, its connection relationship and relative position are then identical with aforesaid fan motor.
What deserves to be mentioned is, in order to make this phase magnet 62 and the silicon steel sheet of this stator department 7 produce stable attraction, the position that this ball bearing 3 is provided with must be lower than the upper end face of this silicon steel sheet, can not influence the active force of 7 of this phase magnet 62 and stator departments to guarantee this ball bearing 3.
This phase magnet 62 can be fixed in this rotation section 6 by any way, for example: and shown in Fig. 7 A, 7B, axially down extend in these 6 centers, rotation section and a plurality ofly to collude bar 64, but trip and fix this phase magnet 62.In addition, also also extensible formation one carrier in the center of this rotation section 6, its aspect can be shown in Fig. 8～11, and its purpose also is firmly to fix this phase magnet 62.
See also Fig. 8 A～8C, this phase magnet 62 also can be combined by two opposite magnet of magnetic; At lateral wall design one groove that rounds 65 of this carrier, its width is identical with the thickness of this phase magnet 62; The external diameter of this carrier in these groove 65 places equals the pore size of this phase magnet 62, and so the magnet that this two magnetic is opposite is able to attract each other in this groove 65 places and make up, and firmly is folded in this groove 65.
See also Fig. 9 A and Fig. 9 B, at the external diameter of this carrier epimere is the aperture that only is designed to slightly greater than this phase magnet 62, after this phase magnet 62 upwards is inserted in from this carrier lower end, utilize these phase magnet 62 aperture sidewalls to do and contact interference closely, can fix this phase magnet 62 in this place with the epimere lateral wall of this carrier.
See also Figure 10 A and Figure 10 B, the carrier in this rotation section 6 is a kind of coupler construction, and it is that the fin 66 that is used in this carrier outside formation comes this phase magnet of support fixation.
See also Figure 11 A and Figure 11 B, the outer wall of its carrier of 6 in the rotation section is coated adhesive agent, by this adhesive agent this phase magnet 62 is fixed in this 6 surfaces, rotation section.
In addition, for strengthening the attraction of this phase magnet 62, also can above the silicon steel sheet of the center of this stator department 7, set up and fix a coupled magnets 72 opposite, as shown in figure 12 with these phase magnet 62 magnetic poles; Or set up and fix a sheet metal 73, iron plate for example, as shown in figure 13.
Other execution mode is the silicon steel sheet top that this phase magnet 62 is provided with and is fixed in the center of this stator department 7, and the carrier that coupled magnets 72 that should be opposite with phase magnet 62 magnetic poles or sheet metal 73 are arranged on this rotation section 6, as shown in figure 14.Another kind of execution mode then is the silicon steel sheet top that this phase magnet 62 is provided with and is fixed in the center of this stator department 7, yet anything is not set at this carrier, but extend coating to these 6 centers, rotation section at an iron-clad 67 of these rotation section 6 interior side-wall surface, as shown in figure 15, the attraction of utilizing this phase magnet 62 and iron-clad corresponding 67 to be produced with it, and do not depart from its position when keeping 6 runnings of this rotation section.
What must remind is, above-mentioned various embodiment are not the structure that only can be used for a ball bearing and an oiliness bearing, under the enough situation of the attraction between phase magnet 62 and the silicon steel sheet, also can use the structure of an oiliness bearing, as Figure 16 and shown in Figure 17, or the structure of a ball bearing, as shown in figure 18; Even as long as the tape 61 of rotation section 6 is proper with the attraction design of silicon steel sheet, and under the enough situation of the attraction between phase magnet 62 and the silicon steel sheet, need not bearing arrangement, this axle center 60 also can stably be resisted against base 8 rotations, as shown in figure 19.
Comprehensive the above, the present invention can not use the structure of two ball bearings when making the bigger fan of volume, and the rotation section that reaches fan does not produce when running up and floats off and rock, and so can reduce manufacturing cost significantly.
Though the present invention discloses as above with a preferred embodiment; yet it is not in order to limit the present invention; any person skilled in the art person; without departing from the spirit and scope of the present invention; when the change that can do various equivalences or replacement, so protection scope of the present invention is when looking accompanying being as the criterion that the application's claim scope defined.
Claims (17)
1. Mangnetic force positioning motor, it comprises:
One base;
One stator department is sheathed on this base, has a plurality of silicon steel sheets in this stator department;
One rotation section, the center are provided with an axle center, and axially extend to this stator department center in this axle center; One tape is set in this rotation section, is looped around this stator department outside; And
One magnetic element is arranged at inboard center, this rotation section, and is surrounded on this axle center, and this magnetic element and this silicon steel sheet produce magnetic attraction.
2. Mangnetic force positioning motor as claimed in claim 1 is characterized in that this base has an accommodation space, can accept this axle center of this rotation section; This Mangnetic force positioning motor also comprises a bearing arrangement, is arranged in this accommodation space, and around accepting this axle center.
3. Mangnetic force positioning motor as claimed in claim 2 is characterized in that this bearing arrangement is to be a ball bearing and an oiliness bearing; This ball bearing is arranged at this base madial wall of close this magnetic element, and this oiliness bearing is this base madial wall that is arranged at than away from this magnetic element.
4. Mangnetic force positioning motor as claimed in claim 3, the top end surface that it is characterized in that this ball bearing than the top end surface of this stator department more away from this magnetic element.
5. Mangnetic force positioning motor as claimed in claim 2 is characterized in that this bearing arrangement is an oiliness bearing or a ball bearing.
6. Mangnetic force positioning motor as claimed in claim 1 or 2 is characterized in that axially extending a plurality of bars that collude with this magnetic element of trip in the inboard center of this rotation section.
7. Mangnetic force positioning motor as claimed in claim 1 or 2 is characterized in that a carrier around this axle center is extended in the inboard center of this rotation section, and this magnetic element is located on this carrier lateral wall.
8. Mangnetic force positioning motor as claimed in claim 7 is characterized in that this magnetic element is made of two opposite joint magnet of magnetic pole; Lateral wall at this carrier has the groove that rounds, and makes this opposite two magnet of this this magnetic be able to attract each other in this groove place and bind.
9. Mangnetic force positioning motor as claimed in claim 7 is characterized in that this carrier has an at least one protuberance or a fin, is used for supporting this magnetic element.
10. Mangnetic force positioning motor as claimed in claim 7 is characterized in that between this carrier lateral wall and this magnetic element be to engage by adhesive agent.
11. Mangnetic force positioning motor as claimed in claim 7 is characterized in that the part external diameter of this carrier is the aperture that is slightly larger than this magnetic element, this magnetic element is closely interfered with this carrier contact.
12. Mangnetic force positioning motor as claimed in claim 1 or 2 is characterized in that the surface in the face of this magnetic element of this stator department center is provided with another coupling magnetic element opposite with this magnetic element magnetic pole.
13. Mangnetic force positioning motor as claimed in claim 1 or 2 is characterized in that the surface in the face of this magnetic element of this stator department center is provided with a sheet metal and the coupling of this magnetic element.
14. a Mangnetic force positioning motor, it comprises:
One base;
One stator department is sheathed on this base;
One rotation section, the center are provided with an axle center, and axially extend to this stator department center in this axle center; One tape is set in this rotation section, is looped around this stator department outside;
One magnetic element is arranged at the axial surface of this stator department center, and is surrounded on this axle center;
One bearing arrangement, it is arranged within this base, and around accepting this axle center; And
One magnetic couplings element is fixed in the inboard of this rotation section, in order to produce magnetic force with this magnetic element.
15. Mangnetic force positioning motor as claimed in claim 14 is characterized in that this magnetic couplings element is one to be formed at the iron-clad of this rotation section inwall.
16. Mangnetic force positioning motor as claimed in claim 14 is characterized in that this magnetic couplings element is one to be arranged at inboard center, this rotation section and to be surrounded on the sheet metal in this axle center.
17. the fan with the magnetic force location, it comprises a housing, a rotation section and a stator department; This stator department is the side-lower that is positioned at this rotation section, and coupled to each other, and this stator department and rotation section all are to be placed in this housing inside; This center, rotation section has an axle center and extends axially to this stator department from this rotation section, and this rotation section lateral wall periphery is provided with plurality of vanes, and madial wall then is provided with the tape that rounds; This stator is made of a formed core part of silicon steel sheet and a coil around this core part outside by one; It is characterized in that: inboard center is provided with a phase magnet around this axle center in this rotation section, its Position Design becomes the silicon steel sheet of this phase magnet and this stator department to produce suitable attraction, to overcome the phenomenon that floats off when this rotation section when running up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100876011A CN100461589C (en) | 2005-07-19 | 2005-07-19 | Mangnetic force positioning motor and its fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100876011A CN100461589C (en) | 2005-07-19 | 2005-07-19 | Mangnetic force positioning motor and its fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1901330A CN1901330A (en) | 2007-01-24 |
| CN100461589C true CN100461589C (en) | 2009-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100876011A Active CN100461589C (en) | 2005-07-19 | 2005-07-19 | Mangnetic force positioning motor and its fan |
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| CN (1) | CN100461589C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808802A (en) * | 2011-06-03 | 2012-12-05 | 深圳市顺合泰电机有限公司 | Oily fan with magnetic attraction function |
| CN103104551B (en) * | 2011-11-09 | 2016-03-02 | 奇鋐科技股份有限公司 | Oil bearing fan device |
| CN104564732B (en) * | 2013-10-23 | 2017-10-03 | 台达电子工业股份有限公司 | Thin fan |
| CN106194553A (en) * | 2015-05-29 | 2016-12-07 | 高彦龙 | Water-energy power machine |
| CN109505781B (en) * | 2017-09-14 | 2020-12-25 | 台达电子工业股份有限公司 | Fan device and manufacturing method thereof |
| CN112814939A (en) * | 2019-11-18 | 2021-05-18 | 全亿大科技（佛山）有限公司 | Fan with cooling device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5610458A (en) * | 1994-05-11 | 1997-03-11 | Emerson Electric Co. | Electrical connection of printed circuit board to line leads on brushless permanent magnet refrigeration motors |
| CN2371380Y (en) * | 1999-04-29 | 2000-03-29 | 刘锦堂 | Radiation fan with double bearings |
| US6700241B1 (en) * | 2002-11-27 | 2004-03-02 | Sunonwealth Electric Machine Industry Co., Ltd. | Positioning device for prestressing magnet of spindle motor |
| CN1661889A (en) * | 2004-02-24 | 2005-08-31 | 建准电机工业股份有限公司 | Electromotor of possessing structure for rotational balancing rotor |
-
2005
- 2005-07-19 CN CNB2005100876011A patent/CN100461589C/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5610458A (en) * | 1994-05-11 | 1997-03-11 | Emerson Electric Co. | Electrical connection of printed circuit board to line leads on brushless permanent magnet refrigeration motors |
| CN2371380Y (en) * | 1999-04-29 | 2000-03-29 | 刘锦堂 | Radiation fan with double bearings |
| US6700241B1 (en) * | 2002-11-27 | 2004-03-02 | Sunonwealth Electric Machine Industry Co., Ltd. | Positioning device for prestressing magnet of spindle motor |
| CN1661889A (en) * | 2004-02-24 | 2005-08-31 | 建准电机工业股份有限公司 | Electromotor of possessing structure for rotational balancing rotor |
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| Publication number | Publication date |
|---|---|
| CN1901330A (en) | 2007-01-24 |
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Assignee: Zhongda Electronic Components (Wujiang) Co., Ltd. Assignor: Delta Optoelectronics Inc. Contract record no.: 2011990001004 Denomination of invention: Mangnetic force positioning motor and its fan Granted publication date: 20090211 License type: Exclusive License Open date: 20070124 Record date: 20111027 |