CN202713110U - Voice-coil motor - Google Patents
Voice-coil motor Download PDFInfo
- Publication number
- CN202713110U CN202713110U CN 201220006107 CN201220006107U CN202713110U CN 202713110 U CN202713110 U CN 202713110U CN 201220006107 CN201220006107 CN 201220006107 CN 201220006107 U CN201220006107 U CN 201220006107U CN 202713110 U CN202713110 U CN 202713110U
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- CN
- China
- Prior art keywords
- shell fragment
- lens carrier
- coil motor
- coil
- voice coil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a voice-coil motor. The voice-coil motor comprises a base, a lower elastic sheet, a lens carrier, a magnetic conductive ring, a magnet assembly, a coil, an upper elastic sheet and an upper cover. The base and the upper cover form a shell body provided with a containing cavity inside; the upper elastic sheet and the lower elastic sheet are arranged inside the containing cavity; the lens carrier is arranged between the upper elastic sheet and the lower elastic sheet; the coil is fixedly arranged at the periphery of the lens carrier; the magnet assembly arranged above the coil comprises a plurality of magnets which are arranged at the periphery of the lens carrier, gaps being left between every two adjacent magnets; the magnetic conductive ring comprises a ring-shaped base portion and a plurality of positioning portions which project upwards out from a top end of the ring-shaped base portion, wherein the ring-shaped base portion is arranged below each magnets and is located between the coil and the lens carrier, each positioning portion is arranged in the gap between two adjacent magnets, and is pressingly clamped by the two magnets. The voice-coil motor provided by the utility model enables simplified installation operation, and more stable and accurate positioning of the magnet assembly as well as effectively improved impact resistance ability.
Description
Technical field
The utility model relates to a kind of voice coil motor, thereby is a kind ofly to be applied to camera, video camera or to have the voice coil motor of focusing to drive lens moving on the equipment such as mobile phone of camera function specifically.
Background technology
Present voice coil motor; its structure adopts a plurality of permanent magnets of split to form the magnetite assembly more; leave the gap between each permanent magnet; its assembling mode is mainly by reserving accommodating position and being fixed by the mode such as gluing in housing; because required assembly precision is higher; its assembly manipulation is had relatively high expectations and comparatively loaded down with trivial details; and its fixed effect is still accidentally desirable; impact resistance has much room for improvement, and the impulsive force that especially transmits from the housing outer peripheral sidewall often can cause the magnetite assembly to be shifted; and this displacement is so that the balance no longer of the repulsion between each magnetite; thereby further increase the eccentric degree of lens carrier, cause larger departure, even it is scrapped.
The utility model content
It is comparatively reasonable that the purpose of this utility model provides a kind of structure, effectively guarantees the steadiness of magnetite assembly, thereby improve the voice coil motor of shock resistance.
The technical scheme that realizes the utility model purpose is: a kind of voice coil motor comprises base, lower shell fragment, lens carrier, magnetic guiding loop, magnetite assembly, coil, upper shell fragment and loam cake; In forming one, described base and loam cake establish the housing of containing cavity; Described upper shell fragment and lower shell fragment are arranged in containing cavity, and described lens carrier is arranged between shell fragment and the lower shell fragment; Described coil is fixedly installed on the lens carrier periphery; Described magnetite assembly is arranged on the coil top, and described magnetite assembly comprises a plurality of magnetites that are arranged on the lens carrier periphery, leaves the gap between adjacent two magnetites; Described magnetic guiding loop comprises the ring-type base portion and from a plurality of location divisions protruding upward, ring-type base portion top, its ring-type base portion is arranged on each magnetite below and between coil and lens carrier, clamps in the gap of its position point between two adjacent magnetites and by these two magnetites.
In the technique scheme, described lens carrier outer wall is provided with the positioning boss that radially protrudes, and described coil is placed on this positioning boss.
In the technique scheme, described coil arranges in abutting connection with the lens carrier outer wall.
In the technique scheme, the location division of described magnetic guiding loop upwards and towards the direction away from the lens carrier axis tilts to extend.
In the technique scheme, be provided with the shell fragment support between described upper shell fragment and the loam cake, described upper shell fragment support is provided with the endoporus consistent with upper shell fragment peripheral shape, and described upper shell fragment is arranged in the endoporus of shell fragment support.
In the technique scheme, described loam cake is the magnetic conductor of being made by permeability magnetic material.
In the technique scheme, an end of each magnetite and lens carrier outer wall adjacency is concentric circular-arc, and all the other each end margins are linearity.
The utlity model has positive effect: (1) the utility model arranges a plurality of location divisions of protrusion by the top at the ring-type base portion of magnetic guiding loop, simultaneously the location division is arranged in the gap between two adjacent magnetites, and is clamped by these two magnetites; Utilize this structure that the magnetite of a plurality of splits is positioned, so that the fitting operation of magnetite assembly is more simplified, the location is also more accurately firm; In addition, because the location division is jointly fixing by a plurality of magnetites, mutually compress, so when motor integral body outer wall when especially the loam cake sidewall is subject to impulsive force, under the fixation of magnetic guiding loop, each magnetite can not be shifted yet, Effective Raise impact resistance.
Description of drawings
Fig. 1 is a kind of perspective view of the present utility model;
A kind of perspective view of Fig. 2 when to be voice coil motor shown in Figure 1 from another angle observe;
Fig. 3 is a kind of cutaway view of voice coil motor shown in Figure 1;
Fig. 4 is a kind of explosive view of voice coil motor shown in Figure 1.
Be labeled as shown in the accompanying drawing: base 1, lower shell fragment 2, lens carrier 3, positioning boss 31, magnetic guiding loop 4, ring-type base portion 41, location division 42, magnetite assembly 5, magnetite 51, gap 52, coil 6, upper shell fragment 7, loam cake 8, upper shell fragment support 9, endoporus 91, containing cavity 100.
Embodiment
(embodiment 1)
Fig. 1 to Fig. 4 has shown the first embodiment of the present utility model, and wherein Fig. 1 is a kind of perspective view of the present utility model; A kind of perspective view of Fig. 2 when to be voice coil motor shown in Figure 1 from another angle observe; Fig. 3 is a kind of cutaway view of voice coil motor shown in Figure 1; Fig. 4 is a kind of explosive view of voice coil motor shown in Figure 1.
Present embodiment is a kind of voice coil motor, sees Fig. 1 to Fig. 4, comprises base 1, lower shell fragment 2, lens carrier 3, magnetic guiding loop 4, magnetite assembly 5, coil 6, upper shell fragment 7 and loam cake 8; In forming one, described base 1 and loam cake 8 establish the housing of containing cavity 100; Described upper shell fragment 7 and lower shell fragment 2 are arranged in containing cavity 100, and described lens carrier 3 is arranged between shell fragment 7 and the lower shell fragment 2; Described coil 6 is fixedly installed on lens carrier 3 peripheries; Described magnetite assembly 5 is arranged on coil 6 tops, and described magnetite assembly 5 comprises four magnetites 51 of arranging in the form of a ring that are arranged on lens carrier 3 peripheries, leaves gap 52 between adjacent two magnetites 51; Described magnetic guiding loop 4 comprises ring-type base portion 41 and four location divisions 42 protruding upward from ring-type base portion 41 tops, its ring-type base portion 41 is arranged on each magnetite 51 below and between coil 6 and lens carrier 3, clamps in the gap 52 of its location division 42 between two adjacent magnetites 51 and by this two magnetites 51.
The basic configuration of described lens carrier 3 is tubulose, adopts the resinousness material to make, and its outer wall is provided with the positioning boss 31 that radially protrudes, and the bottom of described coil 6 is placed on this positioning boss 31.
Described coil 6 is the drums that form by hot pressing after the just coiling, in abutting connection with lens carrier 3 outer wall settings, and is bonded and fixed at by glue on the outer wall of lens carrier 3.
The location division 42 of described magnetic guiding loop 4 upwards and towards the direction away from lens carrier 3 axis tilts to extend.
Be provided with shell fragment support 9 between described upper shell fragment 7 and the loam cake 8, described upper shell fragment support 9 is provided with the endoporus 91 consistent with upper shell fragment 7 peripheral shape, and described upper shell fragment 7 is arranged in the endoporus 91 of shell fragment support 9.
Described loam cake 8 is magnetic conductors of being made by permeability magnetic material, such as making with materials such as iron, cobalt, nickel and alloys thereof.
Each magnetite 51 adopts permanent magnetic materials to make, and its end with lens carrier 3 outer wall adjacency is concentric circular-arc, and all the other each end margins are linearity.
Present embodiment arranges four location divisions of protrusion by the top at the ring-type base portion of magnetic guiding loop, simultaneously the location division is arranged in the gap between two adjacent magnetites, and is clamped by these two magnetites; Utilize this structure that the magnetite of four splits is positioned, so that the fitting operation of magnetite assembly is more simplified, the location is also more accurately firm; In addition, because the location division is jointly fixing by four magnetites, mutually compress, so when motor integral body outer wall when especially the loam cake sidewall is subject to impulsive force, under the fixation of magnetic guiding loop, each magnetite can not be shifted yet, Effective Raise impact resistance.
Obviously, above-described embodiment of the present utility model only is for the utility model example clearly is described, and is not to be restriction to execution mode of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all execution modes exhaustive.And these belong to apparent variation or the change that connotation of the present utility model extends out and still belong to protection range of the present utility model.
Claims (7)
1. a voice coil motor comprises base (1), lower shell fragment (2), lens carrier (3), magnetic guiding loop (4), magnetite assembly (5), coil (6), upper shell fragment (7) and loam cake (8); In forming one, described base (1) and loam cake (8) establish the housing of containing cavity (100); Described upper shell fragment (7) and lower shell fragment (2) are arranged in containing cavity (100), and described lens carrier (3) is arranged between shell fragment (7) and the lower shell fragment (2); Described coil (6) is fixedly installed on lens carrier (3) periphery; It is characterized in that: described magnetite assembly (5) is arranged on coil (6) top, described magnetite assembly (5) comprises a plurality of magnetites (51) that are arranged on lens carrier (3) periphery, leaves gap (52) between adjacent two magnetites (51); Described magnetic guiding loop (4) comprises ring-type base portion (41) and from a plurality of location divisions (42) protruding upward, ring-type base portion (41) top, its ring-type base portion (41) is arranged on each magnetite (51) below and is positioned between coil (6) and the lens carrier (3), and its location division (42) are arranged in the gap (52) between adjacent two magnetites (51) and are clamped by these two magnetites (51).
2. voice coil motor according to claim 1 is characterized in that: described lens carrier (3) outer wall is provided with the positioning boss (31) that radially protrudes, and described coil (6) is placed on this positioning boss (31).
3. voice coil motor according to claim 1, it is characterized in that: described coil (6) is in abutting connection with lens carrier (3) outer wall setting.
4. voice coil motor according to claim 1 is characterized in that: the location division (42) of described magnetic guiding loop (4) upwards and towards the direction away from lens carrier (3) axis tilts to extend.
5. voice coil motor according to claim 1, it is characterized in that: be provided with shell fragment support (9) between described upper shell fragment (7) and the loam cake (8), described upper shell fragment support (9) is provided with the endoporus (91) consistent with upper shell fragment (7) peripheral shape, and described upper shell fragment (7) is arranged in the endoporus (91) of shell fragment support (9).
6. voice coil motor according to claim 1, it is characterized in that: described loam cake (8) is the magnetic conductor of being made by permeability magnetic material.
7. voice coil motor according to claim 1 is characterized in that: an end of each magnetite (51) and lens carrier (3) outer wall adjacency is concentric circular-arc, and all the other each end margins are linearity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220006107 CN202713110U (en) | 2012-01-09 | 2012-01-09 | Voice-coil motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220006107 CN202713110U (en) | 2012-01-09 | 2012-01-09 | Voice-coil motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202713110U true CN202713110U (en) | 2013-01-30 |
Family
ID=47593373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220006107 Expired - Fee Related CN202713110U (en) | 2012-01-09 | 2012-01-09 | Voice-coil motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202713110U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102710091A (en) * | 2012-01-09 | 2012-10-03 | 金龙机电股份有限公司 | Voice coil motor |
-
2012
- 2012-01-09 CN CN 201220006107 patent/CN202713110U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102710091A (en) * | 2012-01-09 | 2012-10-03 | 金龙机电股份有限公司 | 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: 20130130 Termination date: 20210109 |