CN204993014U - Magnetic suspension motor - Google Patents
Magnetic suspension motor Download PDFInfo
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- CN204993014U CN204993014U CN201520624767.1U CN201520624767U CN204993014U CN 204993014 U CN204993014 U CN 204993014U CN 201520624767 U CN201520624767 U CN 201520624767U CN 204993014 U CN204993014 U CN 204993014U
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Abstract
The utility model discloses a magnetic suspension motor, this magnetic suspension motor includes: centring magnet, first group limit magnet, second group limit magnet, voice coil loudspeaker voice coil, quality piece and center pin. Wherein, the magnetism of centring magnet is felt the line and is passed the voice coil loudspeaker voice coil, produces the ampere force of size and orientation variation with time when letting in the alternating current in the voice coil loudspeaker voice coil, and ampere force drive centring magnet along center pin removal drives the quality piece simultaneous movement with centring magnet fixed connection simultaneously. First group limit magnet and second group limit magnet is located the both ends of center pin, and the confrontation gage block produces along the axial magnetic repulsion of center pin, and the quality piece is followed center pin reciprocating motion and is produced periodic vibration under the combined action of magnetic repulsion and ampere force. This magnetic suspension motor forms the vibration subassembly by voice coil loudspeaker voice coil and magnet, and the influence of shell fragment nonlinearity to vibration performance has been eliminated in the design of no shell fragment. Simultaneously, quality piece and centring magnet along center pin axial motion reducible polarization phenomenon emergence again.
Description
Technical field
The utility model relates to mechanical field, particularly relates to a kind of magnetic suspension motor.
Background technology
System drive power is normally realized body vibration by vibration component by current most micro linear motor, here vibration component is shell fragment or spring more commonly, generally vibration component is welded on mass and shell, in order to connectivity robustness and stability of vibration, the shape of shell fragment and the design of connected mode differ widely.But different shell fragment all inevitably produces stress and concentrates and elastic-plastic deformation in vibration processes, after vibration some cycles, just there will be polarization, deformation even fatigue fracture phenomenon, the irregular shell fragment of profile not easily carries out size management and control in the middle of processing procedure simultaneously.If application spring connects can avoid problems, but need increase other annex fixes, make internal structure complicated like this, correspondingly require higher assembly precision, and easily form friction when vibrating and produce noise, reduce its overall performance.
Utility model content
A kind of magnetic suspension motor that the utility model provides, vibration component is formed by voice coil loudspeaker voice coil 4 and magnet, make mass 5 centrally axle 10 produce displacement, with common shell fragment or spring as compared with vibration component, eliminate the impact of shell fragment mechanical performance on vibration performance, meanwhile, centrally axle 10 moves and can reduce polarization phenomena generation.
A kind of magnetic suspension motor that the utility model embodiment provides, this magnetic suspension motor comprises: shell, centring magnet 3, first group of limit magnet, second group of limit magnet, voice coil loudspeaker voice coil 4, mass 5 and central shaft 10; Wherein, first group of limit magnet comprises the first identical magnet 6 of polarity and the second magnet 7, second group of limit magnet comprises the 3rd identical magnet 8 of polarity and the 4th magnetic 9; Centring magnet 3, first group of limit magnet, second group of limit magnet, voice coil loudspeaker voice coil 4, mass 5 and central shaft 10 are all positioned at described enclosure;
Centring magnet 3 crosses voice coil loudspeaker voice coil 4; Centring magnet 3 is fixedly connected with mass 5;
Central shaft 10 is through mass 5 two ends, centring magnet 3 and described first group of limit magnet, second group of limit magnet, and mass 5 can move on the center shaft 10 vertically; The two ends of central shaft 10 are fixing on the housing;
First magnet 6 and the 3rd magnet 8 are positioned at the two ends of central shaft 10 and fix on the housing symmetrically;
Second magnet 7 and the first magnet 6 position are fixed on the side of mass 5 accordingly, and leave certain gap between the second magnet 7 and the first magnet 6; 4th magnet 9 and the 3rd magnet 8 position are fixed on the opposite side of mass 5 accordingly, and leave certain gap between the 4th magnet 9 and the 3rd magnet 8;
Centring magnet 3 magnetic induction line through voice coil loudspeaker voice coil 4, produces Ampere force when voice coil loudspeaker voice coil 4 is energized, the axis of ampere force direction centrally axle 10.
Alternatively, centring magnet 3 comprises two or more magnet pieces, is connected between described magnet piece by welding plate 2, adjacent magnets block on the contrary intermediate polarity.
Alternatively, the center of mass 5 is provided with groove, and centring magnet 3 embeds in described groove.
Alternatively, shell is made up of upper casing 1 and lower casing 12, and the two ends of central shaft 10 are fixed on upper casing 1.
Alternatively, voice coil loudspeaker voice coil 4 is bonded on flexible print wiring board FPCB11, and FPCB11 is unsettled relative to lower casing 12.
The beneficial effect of the utility model embodiment is: the magnetic suspension motor that the utility model embodiment provides forms vibration component by voice coil loudspeaker voice coil and magnet, with common shell fragment or spring as compared with vibration component, eliminates the non-linear impact on vibration performance of shell fragment.Meanwhile, mass and centring magnet centrally axle axial motion can reduce again polarization phenomena occur.In addition this kind also avoid the size management and control of irregular assembly without shell fragment design, reduces assembly precision.
Accompanying drawing explanation
Fig. 1 is the explosive view of the magnetic suspension motor of the utility model embodiment;
Fig. 2 is the magnetic suspension motor vertical view of the utility model embodiment;
Fig. 3 is the magnetic suspension motor cutaway view of the utility model embodiment;
Fig. 4 is the stressed schematic diagram of magnetic suspension motor of the utility model embodiment.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model execution mode is described in further detail.
Fig. 1 is the explosive view of the magnetic suspension motor of the utility model embodiment, and Fig. 2 is the magnetic suspension motor vertical view of the utility model embodiment, and Fig. 3 is the magnetic suspension motor cutaway view of the utility model embodiment.
As shown in Figure 1 to Figure 3, this magnetic suspension motor comprises: upper casing 1, lower casing 12, centring magnet 3, first group of limit magnet, second group of limit magnet, voice coil loudspeaker voice coil 4, mass 5 and central shaft 10.Upper casing 1 and lower casing 12 form the shell of described magnetic suspension motor jointly, and centring magnet 3, first group of limit magnet, second group of limit magnet, voice coil loudspeaker voice coil 4, mass 5 and central shaft 10 are all positioned at described enclosure.
Described first group of limit magnet comprises the first identical magnet 6 and the second magnet 7 of polarity, and described second group of limit magnet comprises the 3rd identical magnet 8 of polarity and the 4th magnet 9; First magnet 6 and the 3rd magnet 8 are positioned at the two ends of central shaft 10 and fix on the housing symmetrically; Second magnet 7 and the first magnet 6 position are fixed on the side of mass 5 accordingly, and leave certain gap between the second magnet 7 and the first magnet 6; 4th magnet 9 and the 3rd magnet 8 position are fixed on the opposite side of mass 5 accordingly, and leave certain gap between the 4th magnet 9 and the 3rd magnet 8.
Centring magnet 3 crosses voice coil loudspeaker voice coil 4; Centring magnet 3 is fixedly connected with mass 5; The center of mass 5 is provided with groove, and centring magnet 3 embeds in described groove.
Centring magnet 3 comprises two or more magnet pieces, is connected between described magnet piece by welding plate 2, adjacent magnets block on the contrary intermediate polarity.
Central shaft 10 is through mass 5 two ends, centring magnet 3 and described first group of limit magnet, second group of limit magnet, and mass 5 can move on the center shaft 10 vertically; The two ends of central shaft 10 are fixed on upper casing 1.
Centring magnet 3 magnetic induction line through voice coil loudspeaker voice coil 4, produces Ampere force when voice coil loudspeaker voice coil 4 is energized, the axis of ampere force direction centrally axle 10.
In an embodiment of the present utility model, centring magnet 3 comprises three magnet pieces, is connected between adjacent magnets block by welding plate 2, adjacent magnets block on the contrary intermediate polarity.
Voice coil loudspeaker voice coil 4 is bonded on flexible print wiring board FPCB11, and lower casing 12 is unsettled relatively for voice coil loudspeaker voice coil 4.Centring magnet 3, through voice coil loudspeaker voice coil 4, guarantees that the magnetic induction line of centring magnet 3 is through voice coil loudspeaker voice coil 4, and guarantees the axis of the Ampere force that produces centrally axle 10.Pass into alternating current in voice coil loudspeaker voice coil 4, the size and Orientation of Ampere force changes in time.The magnetic induction line of described first group of limit magnet and second group of limit magnet is not through voice coil loudspeaker voice coil 4.Described Ampere force drives the axial motion of centring magnet 3 centrally axle 10, and because centring magnet 3 is fixedly connected on mass 5, therefore centring magnet 3 drives mass 5 to be synchronized with the movement.
Below with reference to the stressing conditions of mass 5, the motion of mass 5 is elaborated.Suppose that mass 5 initial time is in the centre position of central shaft 10, the first magnet 6 in described first group of limit magnet is identical with the second magnet 7 polarity, produce magnetic repulsion each other, the 3rd magnet 8 in described second group of limit magnet is identical with the 4th magnet 9 polarity, produces magnetic repulsion each other.Now centrally axle 10 axis direction of the magnetic repulsion of two ends magnet suffered by mass 5, and magnetic repulsion equal and opposite in direction, direction are contrary, when voice coil loudspeaker voice coil 4 is not energized, Ampere force suffered by mass 5 is zero, and therefore mass 5 is now in equipoise.
Fig. 4 is the stressed schematic diagram of the magnetic suspension motor of the utility model embodiment.When voice coil loudspeaker voice coil 4 passes into alternating current, the axis of described Ampere force F direction centrally axle 10, supposes vertically left (as shown in Figure 3) herein, then Ampere force F drive centring magnet 3 and mass 5 centrally axle 10 be moved to the left.Now the magnetic repulsion f2 poised state of magnetic repulsion f1 and second group of limit magnet of first group of limit magnet suffered by mass 5 is broken.When suffered by mass 5, active force is left greater than active force to the right vertically, mass 5 is moved to the left vertically.Afterwards along with the change of AC current and magnetic induction intensity, described Ampere force reduces gradually, and when active force is to the right greater than active force left vertically, mass 5 speed starts to slow down, when speed is zero, mass 5 reaches maximum displacement place left, and mass 5 returns to the right afterwards.After mass 5 arrives initial position, continue to move right, when the making a concerted effort left of magnetic repulsion of described Ampere force and magnet, mass 5 speed starts to slow down, speed reaches maximum displacement place to the right when being zero, return left under the effect of the magnetic repulsion of described Ampere force and magnet afterwards, move and so forth and produce periodic vibration.
In sum, the magnetic suspension motor of the utility model embodiment forms vibration component by voice coil loudspeaker voice coil and magnet, with common shell fragment or spring as compared with vibration component, eliminates the non-linear impact on vibration performance of shell fragment.Meanwhile, mass and centring magnet centrally axle axial motion can reduce again polarization phenomena occur.In addition this kind also avoid the size management and control of irregular assembly without shell fragment design, reduces assembly precision.
The foregoing is only preferred embodiment of the present utility model, be not intended to limit protection range of the present utility model.All do within spirit of the present utility model and principle any amendment, equivalent replacement, improvement etc., be all included in protection range of the present utility model.
Claims (5)
1. a magnetic suspension motor, is characterized in that, comprising: shell, centring magnet (3), first group of limit magnet, second group of limit magnet, voice coil loudspeaker voice coil (4), mass (5) and central shaft (10); Wherein, first group of limit magnet comprises identical the first magnet (6) of polarity and the second magnet (7), and second group of limit magnet comprises the 3rd identical magnet (8) of polarity and the 4th magnet (9); Centring magnet (3), first group of limit magnet, second group of limit magnet, voice coil loudspeaker voice coil (4), mass (5) and central shaft (10) are all positioned at described enclosure;
Centring magnet (3) crosses voice coil loudspeaker voice coil (4); Centring magnet (3) is fixedly connected with mass (5);
Central shaft (10) is through mass (5), centring magnet (3) and described first group of limit magnet, second group of limit magnet, and mass (5) can move vertically on central shaft (10); The two ends of central shaft (10) are fixing on the housing;
First magnet (6) and the 3rd magnet (8) are positioned at the two ends of central shaft (10) and fix on the housing symmetrically;
Second magnet (7) and the first magnet (6) position are fixed on the side of mass (5) accordingly, and leave certain gap between the second magnet (7) and the first magnet (6); 4th magnet (9) and the 3rd magnet (8) position are fixed on the opposite side of mass (5) accordingly, and leave certain gap between the 4th magnet (9) and the 3rd magnet (8);
Centring magnet (3) magnetic induction line through voice coil loudspeaker voice coil (4), produces Ampere force during voice coil loudspeaker voice coil (4) energising, the axis of ampere force direction centrally axle (10).
2. magnetic suspension motor according to claim 1, is characterized in that, described magnetic suspension motor comprises further: welding plate (2);
Centring magnet (3) comprises two or more magnet piece, is connected, adjacent magnets block on the contrary intermediate polarity between described plural magnet piece by welding plate (2).
3. magnetic suspension motor according to claim 1, is characterized in that, the center of mass (5) is provided with groove, and centring magnet (3) embeds in described groove.
4. magnetic suspension motor according to claim 1, is characterized in that, shell is made up of upper casing (1) and lower casing (12), and the two ends of central shaft (10) are fixed on upper casing (1).
5. magnetic suspension motor according to claim 4, is characterized in that, voice coil loudspeaker voice coil (4) is bonded on flexible print wiring board FPCB (11), and lower casing (12) is unsettled relatively for voice coil loudspeaker voice coil (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520624767.1U CN204993014U (en) | 2015-08-18 | 2015-08-18 | Magnetic suspension motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520624767.1U CN204993014U (en) | 2015-08-18 | 2015-08-18 | Magnetic suspension motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204993014U true CN204993014U (en) | 2016-01-20 |
Family
ID=55127338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520624767.1U Active CN204993014U (en) | 2015-08-18 | 2015-08-18 | Magnetic suspension motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204993014U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108480203A (en) * | 2018-05-15 | 2018-09-04 | 田广涛 | The vibrator of screening plant |
-
2015
- 2015-08-18 CN CN201520624767.1U patent/CN204993014U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108480203A (en) * | 2018-05-15 | 2018-09-04 | 田广涛 | The vibrator of screening plant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee after: Goertek Inc. Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee before: Goertek Inc. |