CN201656741U - Voice coil motor - Google Patents
Voice coil motor Download PDFInfo
- Publication number
- CN201656741U CN201656741U CN2010201575287U CN201020157528U CN201656741U CN 201656741 U CN201656741 U CN 201656741U CN 2010201575287 U CN2010201575287 U CN 2010201575287U CN 201020157528 U CN201020157528 U CN 201020157528U CN 201656741 U CN201656741 U CN 201656741U
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- China
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- voice coil
- electric motors
- linear electric
- stator
- yoke
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- Linear Motors (AREA)
Abstract
The utility model discloses a voice coil motor which comprises a stator and a rotor doing linear motion relative to the stator, wherein the stator comprises a cylindrical magnetic yoke and a plurality of magnets distributed circularly along the circumferential direction of the magnet yoke in the magnet yoke; the rotor comprises a cylindrical coil frame and a coil coaxial with the coil frame; and the stator and the rotor are connected in a sliding way along the axial direction. Because of adopting the magnets distributed circularly along the circumferential direction of the magnet yoke in the magnet yoke, the utility model ensures that the installing process of the motor is simplified and the motor has reliable stability after installed, and is easy to realize the massive production.
Description
Technical field
The utility model relates to voice coil loudspeaker voice coil techniques of linear motor field, more particularly, relates to a kind of voice coil loudspeaker voice coil linear electric motors simple in structure.
Background technology
Voice coil loudspeaker voice coil linear electric motors (Voice Coil Motor) are gained the name in the voice coil loudspeaker voice coil of loudspeaker because of its similar.This motor has very high rate of acceleration, can produce the very strong driving force of 0.7N-1000N, and its stroke is less than 50mm.The specification and the pattern of voice coil motor are a lot, and voice coil motor branch of the prior art can be column type voice coil motor and oscillating-type voice coil motor.No matter be column type or oscillating-type, their basic functional principle is identical, that is: when electrical conductor passes magnetic field, can produce a power perpendicular to the magnetic line of force, column type voice coil motor output linear thrust, the oscillating-type voice coil motor is outputting torsion then, and the size of this power depends on conductor length, magnetic field intensity and the size of current by magnetic field.
The application of column type voice coil motor is quite extensive on the market, at present, is mainly used in fields such as medical treatment, semiconductor, aviation, automobile, comprises valve actuator, and miniature precision is replaced numerous aspects such as measuring instrument, shaking platform and active vibration damping system.But voice coil motor of the prior art has complex structure, and the defective that assembly difficulty is bigger is difficult to guarantee consistency of product, and then brings obstacle for the batch process of product.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of voice coil loudspeaker voice coil linear electric motors convenient for assembly.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of voice coil loudspeaker voice coil linear electric motors are provided, the mover that comprises stator, described relatively stator moving linearly, described stator comprises the yoke of tubular, a plurality of magnet that circularizes along described yoke circumferential array in described yoke, described mover comprises tubular bobbin and the coil coaxial with described bobbin, and described stator and described mover are slidingly connected in the axial direction.
More specifically, the shaft core position of described yoke has a guide cylinder, and the position of the corresponding described guide cylinder of described mover is provided with a main shaft, and is slidingly connected by described main shaft and described guide cylinder.
More specifically, be embedded with a fairlead that is slidingly connected with described main shaft respectively in the position at described guide cylinder two ends.
More specifically, described fairlead comprises the bearing gland that is positioned at inboard bearing and is positioned at the outside.
More specifically, the cross section of described magnet is the fan ring-type.
More specifically, described stator also comprises a steel bushing, and described steel bushing is coaxial and be sheathed on described a plurality of periphery of magnet that is arranged in annular with described yoke.
More specifically, the outer wall of the inwall of described steel bushing and described guide cylinder and described magnet bond together by glue.
More specifically, the position of the corresponding described coil of described bobbin is provided with the coil groove.
More specifically, described yoke outer face is removably connected with a mounting flange.
More specifically, be removably connected with a case at a described motor end relative with described mounting flange.
Like this, because the utility model adopts the magnet that circularizes along described yoke circumferential array in described yoke, and adopts the steel bushing that is sheathed on described a plurality of magnet peripheries, make that the mounting process of motor is simplified, also have reliable stability after the installation, be easy to realize mass production.
Description of drawings
Fig. 1 is the schematic perspective view of the utility model one preferred embodiment;
Fig. 2 is a cross-sectional schematic embodiment illustrated in fig. 1, and has omitted mounting flange and case;
Fig. 3 is the schematic perspective view of middle stator embodiment illustrated in fig. 1;
Fig. 4 is the cross-sectional schematic of Fig. 3;
Fig. 5 is the schematic perspective view of middle mover embodiment illustrated in fig. 1;
Fig. 6 is the cross-sectional schematic of Fig. 5.
Embodiment
In order to make technical problem to be solved in the utility model, technical scheme and beneficial effect clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Please refer to Fig. 1 and Fig. 2, be a preferred embodiment of the present utility model, these voice coil loudspeaker voice coil linear electric motors comprise the mover 2 of stator 1, described relatively stator 1 moving linearly, and described stator 1 comprises the yoke 11 of tubular, a plurality of magnet 12 that circularizes along described yoke 11 circumferential array in described yoke 11.Described mover 2 comprises tubular bobbin 21 and the coil 22 coaxial with described bobbin 21, and described stator 1 is slidingly connected in the axial direction with described mover 2.Like this,, make that the mounting process of motor is simplified, also have reliable stability after the installation, be easy to realize mass production because present embodiment adopts the magnet 12 that circularizes along described yoke 11 circumferential array in described yoke 11.
Below above-mentioned each part is further described in detail respectively.
Please in conjunction with reference Fig. 3 and Fig. 4, in order to realize described stator 1 and described mover 2 being slidingly connected in the axial direction.The shaft core position of described yoke 11 has a guide cylinder 13, and the position of described mover 2 corresponding described guide cylinders 13 is provided with a main shaft 23, and is slidingly connected with described guide cylinder 13 by described main shaft 23.Certainly, the position of described main shaft 23 and described guide cylinder 13 also can be exchanged, and main shaft 23 is located at the shaft core position of described yoke 11 that is:, and described guide cylinder 13 is located at the shaft core position of mover 2.As a kind of implementation, described guide cylinder 13 by described yoke 11 extend naturally form.Be embedded with a fairlead 14 that is slidingly connected with described main shaft 23 respectively in the position at described guide cylinder 13 two ends.In the present embodiment, described fairlead 14 comprises the bearing gland 142 that is positioned at inboard bearing 141 and is positioned at the outside.And described main shaft 23 sliding supports are on described two fairleads 14.
Certainly, being slidingly connected between described stator 1 and the described mover 2 is not limited to the mode that adopts guide cylinder and main shaft to cooperate, can also adopt other modes that is slidingly connected.
Please refer to Fig. 3, the cross section of described magnet 12 is the fan ring-type, promptly forms annular along described yoke 11 circumferential array in a plurality of magnet 12.In order to realize the installing and locating to described magnet 12, described stator 1 also comprises a steel bushing 15, and described steel bushing 15 is coaxial and be sheathed on described a plurality of periphery of magnet 12 that is arranged in annular with described yoke.In the present embodiment, the outer wall of the inwall of described steel bushing 15 and described guide cylinder 13 and described magnet 12 bond together by glue.Like this, because present embodiment adopts the magnet 12 that circularizes along described yoke 11 circumferential array in described yoke 11, and adopt the steel bushing that is sheathed on described a plurality of magnet peripheries, and make that the mounting process of motor is further simplified, further improved the stability after installing.
Please in conjunction with reference Fig. 5 and Fig. 6, the position of described bobbin 21 corresponding described coils 22 is provided with coil groove 211.Can make things convenient for the location of described coil 22 on the one hand, on the other hand, also be beneficial to and save the space, reduce the weight of motor.Certainly, described coil 22 can also be arranged in the described bobbin 21, also be a kind of coaxial manner of realizing bobbin 21 and coil 22.In addition, also be provided with another groove 212 in a side of the outer surface of described bobbin 21, described coil groove 211, can be in order to alleviate the weight of motor.
Referring again to Fig. 1, for the voice coil loudspeaker voice coil linear electric motors of realizing present embodiment and the location of its service position, described yoke 11 outer faces are removably connected with a mounting flange 3.For dustproof, be removably connected with a case 4 at described motor and described mounting flange 3 relative ends.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (10)
1. voice coil loudspeaker voice coil linear electric motors, the mover that comprises stator, described relatively stator moving linearly, it is characterized in that: described stator comprises the yoke of tubular, a plurality of magnet that circularizes along described yoke circumferential array in described yoke, described mover comprises tubular bobbin and the coil coaxial with described bobbin, and described stator and described mover are slidingly connected in the axial direction.
2. voice coil loudspeaker voice coil linear electric motors as claimed in claim 1 is characterized in that: the shaft core position of described yoke has a guide cylinder, and the position of the corresponding described guide cylinder of described mover is provided with a main shaft, and is slidingly connected by described main shaft and described guide cylinder.
3. voice coil loudspeaker voice coil linear electric motors as claimed in claim 2 is characterized in that: be embedded with a fairlead that is slidingly connected with described main shaft respectively in the position at described guide cylinder two ends.
4. voice coil loudspeaker voice coil linear electric motors as claimed in claim 3 is characterized in that: described fairlead comprises the bearing gland that is positioned at inboard bearing and is positioned at the outside.
5. voice coil loudspeaker voice coil linear electric motors as claimed in claim 2 is characterized in that: the cross section of described magnet is the fan ring-type.
6. voice coil loudspeaker voice coil linear electric motors as claimed in claim 5 is characterized in that: described stator also comprises a steel bushing, and described steel bushing is coaxial and be sheathed on described a plurality of periphery of magnet that is arranged in annular with described yoke.
7. voice coil loudspeaker voice coil linear electric motors as claimed in claim 6 is characterized in that: the inwall of described steel bushing and the outer wall of described guide cylinder and described magnet bond together by glue.
8. voice coil loudspeaker voice coil linear electric motors as claimed in claim 2 is characterized in that: the position of the corresponding described coil of described bobbin is provided with the coil groove.
9. voice coil loudspeaker voice coil linear electric motors as claimed in claim 1 is characterized in that: described yoke outer face is removably connected with a mounting flange.
10. voice coil loudspeaker voice coil linear electric motors as claimed in claim 9 is characterized in that: an end relative with described mounting flange at described motor is removably connected with a case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201575287U CN201656741U (en) | 2010-04-07 | 2010-04-07 | Voice coil motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201575287U CN201656741U (en) | 2010-04-07 | 2010-04-07 | Voice coil motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201656741U true CN201656741U (en) | 2010-11-24 |
Family
ID=43121973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201575287U Expired - Fee Related CN201656741U (en) | 2010-04-07 | 2010-04-07 | Voice coil motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201656741U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102064659A (en) * | 2010-11-26 | 2011-05-18 | 天津凯雷德科技发展有限公司 | Manufacturing method and device of cylindrical linear motor |
| CN105896798A (en) * | 2016-07-05 | 2016-08-24 | 苏州市优尔特精密机械科技有限公司 | Voice coil motor |
| CN108768132A (en) * | 2018-08-16 | 2018-11-06 | 深圳市海普智能装备技术有限公司 | voice coil motor and driving device |
| CN113965041A (en) * | 2020-12-01 | 2022-01-21 | 上海隐冠半导体技术有限公司 | Voice coil motor |
| US11982862B1 (en) | 2018-12-12 | 2024-05-14 | Meta Platforms Technologies, Llc | Head-mounted display device with stepper motors for moving displays |
-
2010
- 2010-04-07 CN CN2010201575287U patent/CN201656741U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102064659A (en) * | 2010-11-26 | 2011-05-18 | 天津凯雷德科技发展有限公司 | Manufacturing method and device of cylindrical linear motor |
| CN102064659B (en) * | 2010-11-26 | 2013-02-20 | 天津凯雷德科技发展有限公司 | Manufacturing method of cylindrical linear motor |
| CN105896798A (en) * | 2016-07-05 | 2016-08-24 | 苏州市优尔特精密机械科技有限公司 | Voice coil motor |
| CN105896798B (en) * | 2016-07-05 | 2018-07-24 | 苏州市优尔特精密机械科技有限公司 | A kind of voice coil motor |
| CN108768132A (en) * | 2018-08-16 | 2018-11-06 | 深圳市海普智能装备技术有限公司 | voice coil motor and driving device |
| CN108768132B (en) * | 2018-08-16 | 2024-02-27 | 奥茵绅智能装备(苏州)有限公司 | Voice coil motor and driving device |
| US11982862B1 (en) | 2018-12-12 | 2024-05-14 | Meta Platforms Technologies, Llc | Head-mounted display device with stepper motors for moving displays |
| CN113965041A (en) * | 2020-12-01 | 2022-01-21 | 上海隐冠半导体技术有限公司 | Voice coil motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20170407 |