CN204993015U - Magnetic suspension motor - Google Patents
Magnetic suspension motor Download PDFInfo
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- CN204993015U CN204993015U CN201520625209.7U CN201520625209U CN204993015U CN 204993015 U CN204993015 U CN 204993015U CN 201520625209 U CN201520625209 U CN 201520625209U CN 204993015 U CN204993015 U CN 204993015U
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- magnet
- voice coil
- magnetic suspension
- mass
- suspension motor
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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 sides of center pin, produces the looks suction that obstructs the motion of quality piece, and quality piece speed drop is zero hour maxmizing displacement department, after this reciprocating motion and produce periodic vibration. 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, vibrating some cycles or just there will be polarization, deformation even fatigue fracture after the time, the irregular shell fragment of profile not easily carries out size management and control in the middle of making simultaneously.If application spring connects can avoid problems, but need increase other annex fixes spring, 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 and magnet, make mass centrally axle generation 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 motion can reduce again 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 12, mass 7 and central shaft 6.Wherein, described first group of limit magnet comprises opposite polarity first magnet 4 and the second magnet 5, and described second group of limit magnet comprises opposite polarity 3rd magnet 8 the 4th magnet 9; Centring magnet 3, first group of limit magnet, second group of limit magnet, voice coil loudspeaker voice coil 12, mass 7 and central shaft 6 are all positioned at described enclosure;
Centring magnet 3 is fixedly connected with mass 7;
Central shaft 6 runs through mass 7, and mass 7 can move vertically on central shaft 6; The two ends of central shaft 6 are fixing on the housing;
First magnet 4 and the 3rd magnet 8 are positioned at the both sides of central shaft 6 and fix on the housing symmetrically;
Second magnet 5 and the first magnet 4 position are fixed on the side of mass 7 accordingly, and leave certain gap between the second magnet 5 and the first magnet 4; 4th magnet 9 and the 3rd magnet 8 position are fixed on the opposite side of mass 7 accordingly, and leave certain gap between the 4th magnet 9 and the 3rd magnet 8;
Voice coil loudspeaker voice coil 12 is fixing on the housing, corresponding with centring magnet 3 position;
The magnetic induction line of centring magnet 3, through voice coil loudspeaker voice coil 12, produces Ampere force when voice coil loudspeaker voice coil 12 is energized, the axis of ampere force direction centrally axle 6.
Alternatively, the center of mass 7 is provided with groove, and centring magnet 3 embeds in described groove.
Alternatively, this magnetic suspension motor comprises further: washer plate 2;
Centring magnet 3 side and washer plate 2 embed in groove with opposite side after fixing; Washer plate 2 is fixedly connected with mass 7;
Centring magnet 3 comprises one or more magnet piece.
Alternatively, described shell is made up of upper casing 1 and lower casing 14, and the two ends of central shaft 6 are fixed on upper casing 1.
Alternatively, this magnetic suspension motor comprises further: flexible print wiring board FPCB13;
Voice coil loudspeaker voice coil 12 is bonded on FPCB13, and FPCB13 is fixed on lower casing 14.
Alternatively, described magnetic suspension motor also comprises: four blocks 11;
Described four blocks 11 are fixed on four corners of above-mentioned mass 7 respectively by lower casing 14.
Alternatively, described magnetic suspension motor also comprises: four silicagel pad 10;
Four silicagel pad 10 are fixing on the housing by described four blocks 11.
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 management and control of shell fragment size 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 front view of the magnetic suspension motor of the utility model embodiment;
Fig. 3 is the vertical view of the 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 front view of the magnetic suspension motor of the utility model embodiment, and Fig. 3 is the vertical view of the magnetic suspension motor of the utility model embodiment.
As shown in Figure 1 to Figure 3, this magnetic suspension motor comprises: upper casing 1, lower casing 14, centring magnet 3, first group of limit magnet, second group of limit magnet, voice coil loudspeaker voice coil 12, mass 7 and central shaft 6.Upper casing 1 and lower casing 14 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 12, mass 7 and central shaft 6 are all positioned at described enclosure.Described first group of limit magnet comprises opposite polarity first magnet 4 and the second magnet 5, and described second group of limit magnet comprises opposite polarity 3rd magnet 8 and the 4th magnet 9;
First magnet 4 and the 3rd magnet 8 are positioned at the both sides of central shaft 6 and fix on the housing symmetrically.Second magnet 5 and the first magnet 4 position are fixed on the side of mass 7 accordingly, and leave certain gap between the second magnet 5 and the first magnet 4.4th magnet 9 and the 3rd magnet 8 position are fixed on the opposite side of mass 7 accordingly, and leave certain gap between the 4th magnet 9 and the 3rd magnet 8;
Voice coil loudspeaker voice coil 12 is fixing on the housing, and voice coil loudspeaker voice coil 12 is corresponding with centring magnet 3 position;
The magnetic induction line of centring magnet 3, through voice coil loudspeaker voice coil 12, produces Ampere force when voice coil loudspeaker voice coil 12 is energized, the axis of ampere force direction centrally axle 6.
Central shaft 6 runs through mass 7, and mass 7 can move vertically on central shaft 6.
In an embodiment of the present utility model, the center of mass 7 is provided with groove, and centring magnet 3 embeds in described groove.
Magnetic suspension motor as shown in Figure 1 to Figure 3 comprises washer plate 2.Centring magnet 3 side and washer plate 2 embed in groove with opposite side after fixing; Washer plate 2 is fixedly connected with mass 7.Centring magnet 3 can comprise one or more magnet piece.Centring magnet 3 comprises 2 magnet pieces in the present embodiment, and the center of mass 7 is provided with 2 grooves accordingly, and two magnet pieces embed in described 2 grooves correspondingly.
In the present embodiment, shell is made up of upper casing 1 and lower casing 14, and the two ends of central shaft 6 are fixed on upper casing 1.Central shaft 6 quality of connection block 7 and shell, free end stiff end, free end quality of connection block and shell.
In an embodiment of the present utility model, magnetic suspension motor also comprises four blocks, 11, four blocks 11 and is separately fixed on four corners of described shell, and the position of four blocks 11 is corresponding with the position of four corners of mass 7.
In an embodiment of the present utility model, magnetic suspension motor also comprises: four silicagel pad 10; Silicagel pad 10 is fixed on four corners of described shell respectively by four blocks 11, and corresponding with four corner locations of described mass 7.Can calculate the maximum displacement of mass according to theory calculate, then value designs the suitable position of block accordingly.Contact with the silicagel pad on block when mass 7 arrives maximum displacement, certain cushioning effect is provided.
Voice coil loudspeaker voice coil 12 is bonded on flexible print wiring board FPCB13, and FPCB13 is fixed on lower casing 14.The position of voice coil loudspeaker voice coil 12 is corresponding with centring magnet 3 position, and the magnetic induction line guaranteeing centring magnet 3 through voice coil loudspeaker voice coil 12, and guarantees the axis of the Ampere force that produces centrally axle 6.Pass into alternating current in voice coil loudspeaker voice coil 12, 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 12.Described Ampere force drives the axial motion of centring magnet 3 centrally axle 6, and because centring magnet 3 is fixedly connected on mass 7, therefore centring magnet 3 drives mass 7 to be synchronized with the movement.
Below with reference to the stressing conditions of mass, the motion of mass is elaborated.Suppose that mass 7 initial time is in the centre position of central shaft 6, the first magnet 4 in described first group of limit magnet is contrary with the second magnet 5 polarity, produce attraction each other, the 3rd magnet 8 in described second group of limit magnet is contrary with the 4th magnet 9 polarity, produces attraction each other.Now the attraction of both sides magnet suffered by mass 7 is perpendicular to center shaft axis direction, and attraction equal and opposite in direction, direction are contrary, i.e. mass stress balance in the direction in which.When voice coil loudspeaker voice coil 12 is not energized, centrally axle axis direction is stressed is zero for mass 7, and therefore mass 7 is now in equipoise.
When voice coil loudspeaker voice coil 12 passes into alternating current, the axis of described ampere force direction centrally axle 6, supposes vertically left herein, then Ampere force drive centring magnet 3 and mass 7 centrally axle 6 be moved to the left.Now suffered by mass, the attraction poised state of first group of limit magnet and second group of limit magnet is broken, and produces the phase suction to the right hindering mass 7 to move.When suffered by mass 7, Ampere force is left greater than attraction to the right vertically, mass 7 is moved to the left vertically.Afterwards along with the change of magnetic flux density and limit magnet suction, described Ampere force slowly diminishes, and when magnetic pull is to the right greater than Ampere force left vertically, mass reduces speed now, when speed is zero, mass reaches maximum displacement place left, and mass returns to the right afterwards.After mass arrives initial position, continue to move right, when phase suction making a concerted effort left vertically of described Ampere force and magnet, mass starts slowly to slow down, speed reaches maximum displacement place to the right when being zero, return left under the effect of the attraction 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 management and control of shell fragment size 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 (7)
1. a magnetic suspension motor, it is characterized in that, this magnetic suspension motor comprises: shell, centring magnet (3), first group of limit magnet, second group of limit magnet, voice coil loudspeaker voice coil (12), mass (7) and central shaft (6); Wherein, described first group of limit magnet comprises opposite polarity first magnet (4) and the second magnet (5), and described second group of limit magnet comprises opposite polarity 3rd magnet (8) and the 4th magnet (9); Centring magnet (3), first group of limit magnet, second group of limit magnet, voice coil loudspeaker voice coil (12), mass (7) and central shaft (6) are all positioned at enclosure;
Centring magnet (3) is fixedly connected with mass (7);
Central shaft (6) runs through mass (7), and mass (7) can move vertically on central shaft (6); The two ends of central shaft (6) are fixing on the housing;
First magnet (4) and the 3rd magnet (8) are positioned at the both sides of central shaft (6) and fix on the housing symmetrically;
Second magnet (5) and the first magnet (4) position are fixed on the side of mass (7) accordingly, and leave certain gap between the second magnet (5) and the first magnet (4); 4th magnet (9) and the 3rd magnet (8) position are fixed on the opposite side of mass (7) accordingly, and leave certain gap between the 4th magnet (9) and the 3rd magnet (8);
Voice coil loudspeaker voice coil (12) is fixing on the housing, and voice coil loudspeaker voice coil (12) is corresponding with centring magnet (3) position;
The magnetic induction line of centring magnet (3), through voice coil loudspeaker voice coil (12), produces Ampere force during voice coil loudspeaker voice coil (12) energising, the axis of ampere force direction centrally axle (6).
2. magnetic suspension motor according to claim 1, is characterized in that, the center of mass (7) is provided with groove, and centring magnet (3) embeds in described groove.
3. magnetic suspension motor according to claim 2, is characterized in that, this magnetic suspension motor comprises further: washer plate (2);
After centring magnet (3) side and washer plate (2) are fixed, embed in groove with opposite side; Washer plate (2) is welded and fixed with mass (7) and is connected;
Centring magnet (3) comprises one or more magnet piece.
4. magnetic suspension motor according to claim 1, is characterized in that, described shell is made up of upper casing (1) and lower casing (14), and the two ends of central shaft (6) are fixed on upper casing (1).
5. magnetic suspension motor according to claim 4, is characterized in that, this magnetic suspension motor comprises further: flexible print wiring board FPCB (13);
Voice coil loudspeaker voice coil (12) is bonded on FPCB (13), and FPCB (13) is fixed on lower casing (14).
6. magnetic suspension motor according to claim 1, is characterized in that, described magnetic suspension motor also comprises: four blocks (11);
Described four blocks (11) are fixed on four corners of above-mentioned mass (7) respectively by lower casing (14).
7. magnetic suspension motor according to claim 6, is characterized in that, described magnetic suspension motor also comprises: four silicagel pad (10);
Four silicagel pad (10) are fixing on the housing by described four blocks (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520625209.7U CN204993015U (en) | 2015-08-18 | 2015-08-18 | Magnetic suspension motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520625209.7U CN204993015U (en) | 2015-08-18 | 2015-08-18 | Magnetic suspension motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204993015U true CN204993015U (en) | 2016-01-20 |
Family
ID=55127339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520625209.7U Active CN204993015U (en) | 2015-08-18 | 2015-08-18 | Magnetic suspension motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204993015U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106230228A (en) * | 2016-07-21 | 2016-12-14 | 瑞声科技(新加坡)有限公司 | Linear vibration electric motor |
| CN117082417A (en) * | 2023-10-16 | 2023-11-17 | 瑞声光电科技(常州)有限公司 | Multifunctional sounding device |
-
2015
- 2015-08-18 CN CN201520625209.7U patent/CN204993015U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106230228A (en) * | 2016-07-21 | 2016-12-14 | 瑞声科技(新加坡)有限公司 | Linear vibration electric motor |
| CN117082417A (en) * | 2023-10-16 | 2023-11-17 | 瑞声光电科技(常州)有限公司 | Multifunctional sounding device |
| CN117082417B (en) * | 2023-10-16 | 2024-02-23 | 瑞声光电科技(常州)有限公司 | Multifunctional sounding device |
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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. |