CN208950919U - Fan - Google Patents
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- CN208950919U CN208950919U CN201821574422.XU CN201821574422U CN208950919U CN 208950919 U CN208950919 U CN 208950919U CN 201821574422 U CN201821574422 U CN 201821574422U CN 208950919 U CN208950919 U CN 208950919U
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- rotor
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- metal
- magnet
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Abstract
A kind of fan, including a rotor, a stator, a bearing insert and a positioning magnetic conductive part.Rotor includes a wheel hub, a rotor magnet, an axle center, a rotor metal-back, a phase magnet and a positioning metal-back, wherein, the axle center, the rotor metal-back, the positioning metal shell are connected with the wheel hub, the phase magnet is connected to the positioning metal shell, the rotor magnet is located at the rotor metal-back, and the positioning metal shell and the rotor metal-back are phase irregular part.Stator corresponds to rotor magnet setting.The axle center is inserted in the bearing insert.It positions magnetic conductive part to be set on the bearing insert, and the corresponding phase magnet.
Description
Technical field
The utility model relates to a kind of fan, in particular to a kind of fan that avoidable rotor is detached from.
Background technique
Existing fan structure is by axle center, flabellum rotor, iron-clad, magnet ring, motor system, bearing arrangement, thrust plate, metal
The components such as oil seal cover, bearing insert are formed.When the fan is operating, it is necessary to there is an active force to go to resist flabellum rotor itself
Gravity, can be fixed on thrust plate to limit rotor in the axial direction.In the prior art, which is
Flabellum rotor is avoided to be detached from thrust plate in the running using the position drop between motor stator and rotor magnetic ring.
However when the increase of flabellum weight, the position drop between motor stator and rotor magnetic ring must also be significantly increased therewith.
Under the limited design of spatial fan, the position drop between motor stator and rotor magnetic ring is insufficient, and flabellum rotor is caused to send out
Raw vibrating noise problem.
Utility model content
The utility model be in order to solve problems in the prior art and a kind of fan for providing, including a rotor, a bearing
Bushing, a stator and a positioning magnetic conductive part.Rotor includes a rotor magnet, an axle center, a wheel hub and a phase magnet,
In, the rotor magnet and the axle center are set to the wheel hub, which is connected to the wheel hub and the neighbouring axle center.Axle center insertion
In the bearing insert.Stator corresponds to rotor magnet setting.It positions magnetic conductive part to be set on the bearing insert, and the corresponding positioning
Magnet, wherein there is a magneticaction, the phase magnet and the positioning magnetic conductive part between the phase magnet and the positioning magnetic conductive part
Between have a shortest distance, the ratio between the magnetic force and the shortest distance is between 1~4N/mm.
In one embodiment, the ratio between the magnetic force and the shortest distance is between 26~60N/mm.
In one embodiment, the ratio between the magnetic force and the shortest distance is between 1~60N/mm.
In one embodiment, the wheel hub generally metal material.
In one embodiment, which further includes a wear plate, which is set within the bearing insert, and abutting should
One free end in axle center.
In one embodiment, which further includes a washer and a bearing, which is located within the bearing insert simultaneously
Around the axle center, which is set between the bearing and the positioning magnetic conductive part, and the washer is non-magnetic.
In one embodiment, the bearing insert is non-magnetic.
In another embodiment, the utility model also provides a kind of fan, including a rotor, a stator, a bearing insert
And one positioning magnetic conductive part.Rotor include a wheel hub, a rotor magnet, an axle center, a rotor metal-back, a phase magnet and
One positioning metal-back, wherein the axle center, the rotor metal-back, the positioning metal shell are connected with the wheel hub, phase magnet connection
In the positioning metal shell, which is located at the rotor metal-back, and the positioning metal shell and the rotor metal-back are phase isomery
Part.Stator corresponds to rotor magnet setting.The axle center is inserted in the bearing insert.Position magnetic conductive part be set to the bearing insert it
On, and the corresponding phase magnet.
In one embodiment, the positioning metal shell top surface and the rotor metal-back top surface exist highly relative to a horizontal plane
Difference.
In one embodiment, the wheel is closed to weld or penetrate inclusion in the positioning metal shell, the rotor metal-back and the axle center
Hub.
In one embodiment, it is connected between the positioning metal shell and the shaft with laser welding.
In one embodiment, which has multiple apertures, which is fitted into multiple aperture.
In one embodiment, which includes a metal-back extension, which prolongs to the stator
It stretches, there are a gaps between the metal-back extension and the phase magnet.
In one embodiment, a level height of the rotor metal-back top surface is not higher than the rotor magnet top surface.
In one embodiment, which further includes a bobbin winder bracket, which extends to the rotor metal-back
Between the rotor magnet and cover the rotor metal-back by the bobbin winder bracket towards part on the face of the rotor magnet.
In the embodiments of the present invention, a magnetic force can be generated to adsorb when phase magnet and close positioning magnetic conductive part
Rotor, this practice, which can produce additional suction, forces rotor 1 to be fixed on thrust plate, avoids additional axial vibrations.
Due to attached additional magnetic attraction, the magnetic force offset (Offset) that existing fan rotor designs itself can be reduced or even be gone
It removes, reduces the noise generated when fan switching to reach.
Detailed description of the invention
Fig. 1 is the fan for showing the utility model embodiment.
Fig. 2A is the positioning metal shell for showing another embodiment of the utility model.
Fig. 2 B is the positioning metal shell for showing another embodiment of the utility model.
Fig. 3 is the bobbin winder bracket for showing another embodiment of the utility model.
Description of symbols
F: fan
1: rotor
11,11A: rotor magnet
12: axle center
13: wheel hub
14,14A, 14B: phase magnet
15,15A: rotor metal-back
16,16A, 16B: positioning metal shell
161: metal-back extension
2: bearing insert
21: wear plate
22: washer
23: bearing
3,3A: stator
31,31A: bobbin winder bracket
32A: edge
4: positioning magnetic conductive part
D: the shortest distance
G: gap
Specific embodiment
Referring to Fig.1, a kind of fan F of the utility model embodiment, including a rotor 1, a bearing insert 2, one are shown
Stator 3 and a positioning magnetic conductive part 4.Rotor 1 includes a rotor magnet 11, an axle center 12, a wheel hub 13 and a phase magnet
14, wherein the rotor magnet 11 and the axle center 12 are set to the wheel hub 13, which is connected to the wheel hub 13 and adjacent to this
Axle center 12.The axle center 12 is inserted in the bearing insert 2.The corresponding rotor magnet 11 setting of stator 3.Positioning magnetic conductive part 4 is set to should
On bearing insert 2, and the corresponding phase magnet 14.
In the embodiments of the present invention, a magnetic force can be generated when phase magnet 14 and close positioning magnetic conductive part 4
Adsorber rotor 1, this practice, which can produce additional suction, forces rotor 1 to be fixed on thrust plate, avoids additional axial direction
Vibration.Due to attached additional magnetic attraction, the magnetic force offset (Offset) that existing fan rotor designs itself can be reduced
It even removes, reduces the noise generated when fan switching to reach.
The material for positioning magnetic conductive part 4 can be metal, also provide oil sealing function simultaneously.
The phase magnet 14 and the positioning magnetic conductive part 4 have the magneticaction, the phase magnet 14 and the positioning magnetic conductive part 4
Between have a shortest distance d, between 1~60N/mm, which makes an uproar the ratio between the magnetic force and shortest distance d
Sound can obviously reduce, and the fan frame height of the fan can be lowered simultaneously.Ratio between the magnetic force and shortest distance d
When further between 26~60N/mm, the noise of the fan can become apparent from reduction, and the fan frame height of the fan can simultaneously
To be further reduced, in other words, the size of the fan has the flexibility in more designs.
In addition, the noise of the fan can also when the ratio between the magnetic force and shortest distance d is between 1~4N/mm
Reduction is become apparent from, and the service life of the fan can further be extended simultaneously.
In the embodiments of the present invention, magnetic force size can be because of the ruler of the components such as phase magnet 14 and positioning magnetic conductive part 4
Very little, material and shape, line space design and it is different.According to different fan suction demands, can be adjusted by doing design on material structure
It is whole, to reach the demand on fan duty.
The wheel hub 13 can be plastics or other injection materials.In another embodiment, the wheel hub 13 is whole may be
Metal material can so reduce magnetic force leakage, while can increase magnetic force utilization rate.
Since the rotor 1 is sufficiently combined the axis through the magnetic force between the phase magnet 14 and the positioning magnetic conductive part 4
Bushing 2 is held, therefore, fan F can further include a wear plate 21, to extend the service life of the bearing insert 2, the wear plate 21
Within the bearing insert 2, and abut a free end in the axle center 12.The material of the wear plate 21 can be ceramic material.
Fan F further includes a washer 22 and a bearing 23, which is located within the bearing insert 2 and surround should
Axle center 12, the washer 22 are set between the bearing 23 and the positioning magnetic conductive part 4, and the washer 22 is non-magnetic.Bearing can be improved as a result,
23 service life and the service life of fan F
Positioning 4 internal diameter of magnetic conductive part has an oblique angle, and the oblique angle and the axis direction have an angle less than 20 degree, this design
It can mainly prevent lubricating oil from overflowing bearing 23.
When the bearing insert 2 is non-magnetic, the product yield of the fan can be promoted.
In addition, rotor 1 can also further comprise a rotor metal-back 15 and a positioning metal-back 16.The rotor metal-back
15 and the positioning metal shell 16 be connected on the wheel hub 13, which is connected to the positioning metal shell 16, this turn
Sub- magnet 11 is connected to the rotor metal-back 15, and the positioning metal shell 16 and the rotor metal-back 15 are phase irregular part.Stator 3 is right
It should the setting of rotor magnet 11.The axle center 12 is inserted in the bearing insert 2.Magnetic conductive part 4 is positioned to be set on the bearing insert 2,
And corresponding phase magnet 14.
There are differences in height with 15 top surface of rotor metal-back for 16 top surface of positioning metal shell.In one embodiment, the positioning
Metal-back 16, the rotor metal-back 15 and the axle center 12 are to weld or penetrate packet (Injection Molding) in conjunction with the wheel hub
13。
It is connected between the positioning metal shell 16 and the shaft 12 with laser welding, fan life and reduction can be improved as a result,
Fan height.
The positioning metal shell 16 can have multiple aperture (not shown), which is fitted into multiple aperture, as a result, may be used
It improves fan life and reduces fan height.
The section of unilateral positioning metal shell 16 is L-shaped, and thus compared with that can form magnetic loop, magnetic force will not be spread, and can be kept away
Exempt from leakage field problem.However, above-mentioned exposure not limits the utility model, the section of unilateral positioning metal shell can be changed to be in U-shape,
For example, referring to Fig. 2A, the positioning metal shell 16A of another embodiment of the utility model is shown, unilateral positioning metal shell
Section is in U-shape, and phase magnet 14A is connected to positioning metal shell 16A.Referring to Fig. 2 B, another reality of the utility model is shown
The positioning metal shell 16B of example is applied, in this embodiment, the outer diameter of positioning metal shell 16B increases, and positioning metal shell 16B includes
One metal-back extension 161, the metal-back extension 161 extend downwardly, the metal-back extension 161 and phase magnet 14B
Between there are a gap g.Magnetic force leakage can be reduced as a result, while can increase magnetic force utilization rate.
The level height of 15 top surface of rotor metal-back is not higher than 11 top surface of rotor magnet, can promote rotor magnetic as a result,
Power.
In the 1st figure, which further includes a bobbin winder bracket 31, and bobbin winder bracket 31 is with for stator winding.
Referring to Fig. 3, in another embodiment, stator 3A further includes a bobbin winder bracket 31A, bobbin winder bracket 31A part edge
32A is adapted to extend between the rotor metal-back 15A and rotor magnet 11A, and makes the rotor metal-back 15A towards the rotor
Part is covered by the part edge 32A of bobbin winder bracket 31A on the face of magnet 11A, and fan life can be improved as a result, and obtain volume
External damper effect.
Although the utility model is as described above with specific preferred embodiment exposure, so it is not limited to this
Utility model, any those who familiarize themselves with the technology still can make a little change without departing from the spirit and scope of the utility model
With retouching, therefore the protection scope of the utility model should be subject to claims and be limited.
Claims (17)
1. a kind of fan characterized by comprising
One rotor, including a rotor magnet, an axle center, a wheel hub and a phase magnet, wherein the rotor magnet and the axle center
Set on the wheel hub, which is connected to the wheel hub and the neighbouring axle center；
One bearing insert, the axle center are inserted in the bearing insert；
One stator, corresponding rotor magnet setting；
One positioning magnetic conductive part, is set on the bearing insert, and the corresponding phase magnet, wherein the phase magnet and the positioning
There is a magneticaction between magnetic conductive part.
2. fan as described in claim 1, which is characterized in that most short with one between the phase magnet and the positioning magnetic conductive part
Distance, the ratio between the magnetic force and the shortest distance is between 1~4N/mm.
3. fan as described in claim 1, which is characterized in that most short with one between the phase magnet and the positioning magnetic conductive part
Distance, the ratio between the magnetic force and the shortest distance is between 26~60N/mm.
4. fan as described in claim 1, which is characterized in that most short with one between the phase magnet and the positioning magnetic conductive part
Distance, the ratio between the magnetic force and the shortest distance is between 1~60N/mm.
5. fan according to any one of claims 1 to 4, which is characterized in that the wheel hub generally metal material.
6. fan according to any one of claims 1 to 4, which is characterized in that further include a wear plate, which is set to
Within the bearing insert, and abut a free end in the axle center.
7. fan according to any one of claims 1 to 4, which is characterized in that further include a washer and a bearing, the axis
It holds and is located within the bearing insert and surround the axle center, which is set between the bearing and the positioning magnetic conductive part, and the washer is not
Magnetic conduction.
8. fan according to any one of claims 1 to 4, which is characterized in that the bearing insert is non-magnetic.
9. a kind of fan characterized by comprising
One rotor, including a wheel hub, a rotor magnet, an axle center, a rotor metal-back, a phase magnet and a positioning metal
Shell, wherein the axle center, the rotor metal-back, the positioning metal shell are connected with the wheel hub, which is connected to positioning gold
Belong to shell, which is located at the rotor metal-back, and the positioning metal shell and the rotor metal-back are phase irregular part；
One stator, corresponding rotor magnet setting；
One bearing insert, the axle center are inserted in the bearing insert；And
One positioning magnetic conductive part, is set on the bearing insert, and the corresponding phase magnet.
10. fan as claimed in claim 9, which is characterized in that the positioning metal shell top surface and the rotor metal-back top surface phase
For a horizontal plane, there are differences in height.
11. fan as claimed in claim 9, which is characterized in that the positioning metal shell, the rotor metal-back and the axle center with
It welds or penetrates inclusion and close the wheel hub.
12. fan as claimed in claim 9, which is characterized in that between the positioning metal shell and the shaft in succession with Laser Welding
It connects.
13. fan as claimed in claim 9, which is characterized in that the positioning metal shell has multiple apertures, and the wheel hub is chimeric should
Multiple apertures.
14. fan as claimed in claim 9, which is characterized in that the positioning metal shell includes a metal-back extension, the metal
Shell extension extends to the stator, and there are a gaps between the metal-back extension and the phase magnet.
15. fan as claimed in claim 9, which is characterized in that a level height of the rotor metal-back top surface is not higher than should
Rotor magnet top surface.
16. fan as claimed in claim 9, which is characterized in that the stator further includes a bobbin winder bracket, the bobbin winder bracket part edge
It extends between the rotor metal-back and the rotor magnet and makes the rotor metal-back towards part quilt on the face of the rotor magnet
Bobbin winder bracket masking.
17. fan as claimed in claim 9, which is characterized in that the side section of the positioning metal shell is L-shaped or U-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821574422.XU CN208950919U (en) | 2018-09-26 | 2018-09-26 | Fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821574422.XU CN208950919U (en) | 2018-09-26 | 2018-09-26 | Fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208950919U true CN208950919U (en) | 2019-06-07 |
Family
ID=66739554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821574422.XU Active CN208950919U (en) | 2018-09-26 | 2018-09-26 | Fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208950919U (en) |
-
2018
- 2018-09-26 CN CN201821574422.XU patent/CN208950919U/en active Active
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