CN103378702A - Voice coil motor - Google Patents
Voice coil motor Download PDFInfo
- Publication number
- CN103378702A CN103378702A CN2012101175964A CN201210117596A CN103378702A CN 103378702 A CN103378702 A CN 103378702A CN 2012101175964 A CN2012101175964 A CN 2012101175964A CN 201210117596 A CN201210117596 A CN 201210117596A CN 103378702 A CN103378702 A CN 103378702A
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- Prior art keywords
- shell fragment
- voice coil
- coil motor
- fixed
- bearing seat
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Abstract
A voice coil motor comprises a fixed unit, a movable unit, a bearing seat, a lower elastic piece and a lens module. The fixed unit is provided with an accommodating space, and the movable unit is movably accommodated in the accommodating space. The movable unit is provided with a first accommodating space, an internal thread is arranged in the first accommodating space, and an external thread is arranged on the lens module. The lens module is connected in the first accommodating space in a screwing mode through the matching of the external thread and the internal thread. The fixed unit is borne on the bearing seat. A through opening is formed in the bearing seat, and the lower elastic piece is fixed between the bearing seat and the fixed unit. The lower elastic piece is provided with a light transmitting hole and first elastic parts, wherein the light transmitting hole is opposite to the through opening, and the first elastic parts are arranged surrounding the light transmitting hole. The first elastic parts of the lower elastic piece drop in the through opening along the projection in the optical axis direction of the voice coil motor, and gel coats the position between the external thread and the internal thread. According to the voice coil motor, the problem of poor actuation can be solved.
Description
Technical field
The present invention relates to a kind of voice coil motor.
Background technology
Common voice coil motor mainly comprises fixed mount, is installed in fitted tube in this fixed mount, two shell fragments and load bearing seat actively.Two shell fragments are separately fixed at the two ends of fixed mount.This fitted tube is used for installing lens barrel, is housed in the fixed mount movably, and is fixed on the elastic part of two shell fragments.In the situation of energising, this voice coil motor drives fitted tube, thereby changes the distance between lens barrel or focusing lens set or focus-variable lens group and the image sensor, and then realizes the function of focusing or zoom.
In the assembling flow path of camera model, after fitted tube and lens barrel lock, focus, usually use colloid that both are fixed at present.Yet the sidewall that colloid can carry over lens barrel overflows glue between shell fragment and load bearing seat, causes the elastic part of shell fragment to be fixed on the load bearing seat by colloid, causes the voice coil motor start bad.
Summary of the invention
In view of this, be necessary to provide a kind of shell fragment of avoiding to be fixed on voice coil motor on the load bearing seat by colloid.
A kind of voice coil motor comprises a fixed cell, an active unit, a load bearing seat, once shell fragment, an and camera lens module.Described fixed cell has a spatial accommodation, and described active unit is contained in the described spatial accommodation actively.Described active unit has one first spatial accommodation, is provided with internal thread in described the first spatial accommodation.Described camera lens module has the external screw thread that described internal thread matches.Described camera lens module was screwed onto in described the first spatial accommodation by described external screw thread and cooperating of internal thread.Described fixed cell is carried on the described load bearing seat.Offering of described load bearing seat one runs through opening.Described lower shell fragment is fixed between described load bearing seat and the described fixed cell.Described lower shell fragment has one and runs through the light hole that opening aligns mutually and the first elastic part that arranges around described light hole with described.Be coated with colloid between described external screw thread and the described internal thread.The first elastic part of described lower shell fragment drops on described running through in the opening along the projection on the optical axis direction of voice coil motor.
With respect to prior art, because the first elastic part of the described lower shell fragment of voice coil motor of the present invention drops on described running through in the opening along the projection on the optical axis direction of voice coil motor, therefore, can avoid overflowing glue between described lower shell fragment and described load bearing seat the time when sidewall that described colloid carries over described lens barrel, cause the first elastic part of described lower shell fragment to be fixed on the load bearing seat by described colloid, thereby cause the bad problem of voice coil motor start.
Description of drawings
Fig. 1 is the solid assembling schematic diagram of the voice coil motor of embodiment of the present invention.
Fig. 2 is the decomposed schematic diagram of the voice coil motor among Fig. 1.
Fig. 3 is the perspective exploded view of the voice coil motor among Fig. 1.
Fig. 4 is another visual angle schematic diagram of the adjustable shelf among Fig. 3.
Fig. 5 is that voice coil motor among Fig. 1 is along the cut-away view of V-V line.
Fig. 6 is another visual angle schematic diagram of the voice coil motor among Fig. 1.
The main element symbol description
| |
10 |
| |
11 |
| Upper wall | 101 |
| Sidewall | 102 |
| Central through hole | 110 |
| Loam cake | 12 |
| Upper location hole | 121 |
| Upper shell fragment | 13a |
| |
13b |
| Light hole | 130 |
| The first location hole | 131 |
| The first |
130a |
| The second location hole | 132 |
| Active unit | 14 |
| |
141 |
| |
142 |
| The first spatial accommodation | 1410 |
| Internal thread | 1413 |
| The first reference column | 1411 |
| The second reference column | 1412 |
| Fixed mount | 151 |
| Magnet | 152 |
| The second spatial accommodation | 1510 |
| Upper reference column | 1511 |
| Lower reference column | 1512 |
| Put magnetic section | 1513 |
| |
16 |
| Lower location hole | 161 |
| Run through opening | 160 |
| |
171 |
| |
172 |
| |
1710 |
| |
18 |
Following embodiment further specifies the present invention in connection with above-mentioned accompanying drawing.
Embodiment
See also Fig. 1 to Fig. 3, the voice coil motor 10 that embodiment of the present invention provides, it comprises shell fragment 13a on a housing 11, the loam cake 12,, once shell fragment 13b, an active unit 14, a fixed cell 15, a load bearing seat 16 and a camera lens module 17.
Described housing 11 comprises that a upper wall 101 and four extend downward sidewall 102 from these upper wall 101 bendings.This upper wall 101 offers a central through hole 110, and this upper wall 101 and this four sidewalls 102 jointly surround a bottomless voice coil motor containing cavity and are used for accommodating described loam cake 12, upper shell fragment 13a, lower shell fragment 13b, active unit 14, fixed cell 15 and load bearing seat 16.In the present embodiment, described housing 11 can be made by magnetic shielding materials such as dilvals, to eliminate external electromagnetic to the interference of described voice coil motor 10 and to prevent the work of its external electronic components of electromagnetic effect of described voice coil motor 10.
Described loam cake 12 is roughly square structure, and four jiaos respectively arrange a upper location hole 121.In the present embodiment, described loam cake 12 adopts non-magnet_conductible material to make.
Described upper shell fragment 13a is square structure, and the center offers a light hole 130.Four the first location holes 131 are positioned at four corners of shell fragment 13a and away from described light hole 130.Have one first elastic part 130a around described light hole 130, offer four the second location holes 132 on described the first elastic part 130a.
The structural similarity of the structure of described lower shell fragment 13b and described upper shell fragment 13a: have 130 4 the first location holes 131 of a light hole, four the second location holes 132 and one first elastic part 130a.Four the first location holes 131 are positioned at four corners of lower shell fragment 13b and away from described light hole 130.
Described active unit 14 comprises an adjustable shelf 141 and a coil 142.Described adjustable shelf 141 has to accommodate the first spatial accommodation 1410 of the circle of described camera lens module 17.Described the first spatial accommodation 1410 is provided with internal thread 1413.Described adjustable shelf 141 is cube-shaped, and described coil 142 is wrapped on the periphery of described adjustable shelf 141.Four the second location hole 132 positions of described adjustable shelf 141 corresponding described upper shell fragment 13a are provided with four the first reference columns 1411.Four the second location hole 132 positions of described adjustable shelf 141 corresponding described lower shell fragment 13b are provided with four the second reference column 1412(as shown in Figure 4).
Described fixed cell 15 comprises a fixed mount 151 and four magnet 152.The shape of the shape of described fixed mount 151 and adjustable shelf 141 is roughly the same, and the geometric center of described fixed mount 151 has second spatial accommodation 1510 that holds active unit 14.
Described fixed mount 151 is arranged between described upper shell fragment 13a and the lower shell fragment 13b.Described fixed mount 151 is extended with four and goes up reference columns 1511 near the first location hole 131 of shell fragment 13a on the upper end correspondences of described upper shell fragment 13a is vertical with upper location hole 121 positions of described loam cake 12.Described four upper reference columns 1511 pass respectively the first location hole 131 of shell fragment 13a and stretch into the upper location hole 121 of loam cake 12, by gluing process upper shell fragment 13a are fixed between fixed mount 151 and the loam cake 12 again.The first location hole 131 positions of the corresponding described lower shell fragment 13b in bottom of described fixed mount 151 close described lower shell fragment 13b vertically are extended with four upper reference columns and offer four lower reference columns 1512.
In addition, offer respectively one on four of described fixed mount 151 sidewalls and put magnetic section 1513.Described four magnet 152 are separately positioned on to be put in the magnetic section 1513 and the coil 142 of corresponding described active unit 14.
Produce magnetic field force between the coil 142 of described magnet 152 and energising, magnetic field force drives described adjustable shelf 141 motions, and the described adjustable shelf 141 of motion drives camera lens module 17 together in the 1510 interior motions of the second spatial accommodation.Described loam cake 12 is used for when upper shell fragment 13a is subject to elastic deformation on the plane perpendicular to optical axis, describedly prevents that described camera lens module 17 from producing displacement on the plane perpendicular to optical axis.
Described load bearing seat 16 is cube structure, and it adopts plastic material to make.The corner location of described load bearing seat 16 respectively has a lower location hole 161.The center of described load bearing seat 16 offers one and runs through opening 160.The first location hole 131 that four lower reference columns 1512 of described fixed mount 151 pass respectively lower shell fragment 13b is fixed in the described lower location hole 161, so that described lower shell fragment 13b is fixed between fixed mount 151 and the load bearing seat 16.In the present embodiment, the first elastic part 130a of described lower shell fragment 13b drops on described running through in the opening 160 along the projection on the optical axis direction of voice coil motor 10.In the present embodiment, the described opening 160 that runs through is square, be appreciated that the described opening 160 that runs through also can be circular grade for other shape, as long as can make the first elastic part 130a of described lower shell fragment 13b can drop on described running through in the opening 160 along the projection on the optical axis direction of voice coil motor 10.
Described camera lens module 17 comprises a lens barrel 171 and a plurality of lens 172 that are housed in the described lens barrel 171.Be provided with the external screw thread 1710 that matches with the internal thread 1413 of described first spatial accommodation 1410 of described adjustable shelf 141 on the lateral wall of described lens barrel 171.In the present embodiment, be coated with colloid 18 between described external screw thread 1710 and the internal thread 1413, therefore, can prevent when assembling image sensor (not shown), dust between described external screw thread 1710 and the internal thread 1413 drops down onto on the described image sensor, affects the image quality of described image sensor.
In the present embodiment, the described light hole 130 that runs through the light hole 130 of opening 160, described lower shell fragment 13b, the second spatial accommodation 1510 of fixed mount 151, the first spatial accommodation 1410 of described adjustable shelf 141, described upper shell fragment 13a is (also namely, the geometric center of the described light hole 130 that runs through the light hole 130 of opening 160, described lower shell fragment 13b, the second spatial accommodation 1510 of fixed mount 151, the first spatial accommodation 1410 of described adjustable shelf 141, described upper shell fragment 13a is on a line) relative to each other just.
See also Fig. 2, Fig. 5 and Fig. 6, during assembling voice coil motor 10, the first location hole 131 with described lower shell fragment 13b is set on the lower reference column 1512 of described fixed mount 151 first, again described active unit 14 is placed on the lower shell fragment 13b, described adjustable shelf 141 four the second reference columns 1412 be housed in respectively in four the second location holes 132 of described lower shell fragment 13b, and by gluing process described lower shell fragment 13b and described adjustable shelf 141 are fixed, subsequently the lower reference column 1512 of described fixed mount 151 and the lower location hole 161 of described load bearing seat 16 are fastened, and by gluing process described lower shell fragment 13b is fixed between described fixed mount 151 and the described load bearing seat 16, described active unit 14 is housed in the second spatial accommodation 1510 of fixed mount 151, and described fixed mount 151 is carried on the described load bearing seat 16.
Subsequently, the first location hole 131 of described upper shell fragment 13a is set on the upper reference column 1511 of described fixed mount 151, subsequently the upper reference column 1511 of described fixed mount 151 and the upper location hole 121 of described loam cake 12 are fastened, and by gluing process described upper shell fragment 13a is fixed between described fixed mount 151 and the described loam cake 12, described adjustable shelf 141 four the first reference columns 1411 be housed in respectively in four the second location holes 132 of described upper shell fragment 13a, and by gluing process described upper shell fragment 13a and described adjustable shelf 141 are fixed, therefore, described adjustable shelf 141 is placed between described upper shell fragment 13a and the lower shell fragment 13b, so that described adjustable shelf 141 is suspended in the described fixed mount 151; Then lid is established described lid 11.External screw thread 1710 and described the first spatial accommodation 1410 internal threads 1413 bolts with the lens barrel 171 of described camera lens module 17.Lateral wall along described lens barrel 171 is coated with described colloid 18 so that described colloid 18 flows between described external screw thread 1710 and the described internal thread 1413.
Be understandable that the quantity of described upper location hole 121, the first location hole 131, upper reference column 1511, lower location hole 161 is identical and be not limited to four, it can design arbitrarily according to demand, as two, below three or four; The quantity of described the second location hole 132, the first reference column 1411 and the second reference column 1412 is identical and also be not limited to four, and it also can design arbitrarily according to demand, as two, below three or four.
In the present embodiment, because the first elastic part 130a of described lower shell fragment 13b drops on described running through in the opening 160 along the projection on the optical axis direction of voice coil motor 10, therefore, can avoid overflowing glue between described lower shell fragment 13b and described load bearing seat 16 time when sidewall that described colloid 18 carries over described lens barrel 171, cause the first elastic part 130a of described lower shell fragment 13b to be fixed on the load bearing seat 16 by described colloid 18, thereby cause the bad problem of voice coil motor 10 starts.
Although the present invention discloses as above with preferred embodiments,, it is not to limit the present invention, and in addition, those skilled in the art can also do other variation etc. in spirit of the present invention.Certainly, the variation that these are done according to spirit of the present invention all should be included within the present invention's scope required for protection.
Claims (9)
1. voice coil motor, comprise a fixed cell, one active unit, one load bearing seat, shell fragment once, an and camera lens module, described fixed cell has a spatial accommodation, described active unit is contained in the described spatial accommodation actively, described active unit has one first spatial accommodation, be provided with internal thread in described the first spatial accommodation, described camera lens module has the external screw thread that described internal thread matches, described camera lens module is by being screwed onto described external screw thread and cooperating of internal thread in described the first spatial accommodation, be coated with colloid between described external screw thread and the described internal thread, described fixed cell is carried on the described load bearing seat, offering of described load bearing seat one runs through opening, described lower shell fragment is fixed between described load bearing seat and the described fixed cell, described lower shell fragment has one and runs through the light hole that opening aligns mutually and the first elastic part that arranges around described light hole with described, and it is characterized in that: the first elastic part of described lower shell fragment drops on described running through in the opening along the projection on the optical axis direction of voice coil motor.
2. voice coil motor as claimed in claim 1, it is characterized in that described fixed cell comprises a fixed mount and a plurality of magnet, described magnet is fixed on the sidewall of described fixed mount, described active unit comprises an adjustable shelf and a coil, and described coil winding is on the periphery of described adjustable shelf.
3. voice coil motor as claimed in claim 1, it is characterized in that, described voice coil motor comprises a housing, described housing comprises a upper wall and a plurality of from the downward sidewall of this upper wall bending extension, and described upper wall and described a plurality of sidewall jointly surround a bottomless voice coil motor containing cavity and be used for accommodating described active unit, fixed cell, lower shell fragment and load bearing seat.
4. voice coil motor as claimed in claim 1, it is characterized in that, described voice coil motor further comprises shell fragment on, described upper shell fragment offers a plurality of the first location holes, corresponding a plurality of described the first location holes of described fixed mount offer a plurality of upper reference columns, and described the first location hole and upper reference column match and make described upper shell fragment be fixed on an end of described fixed mount.
5. voice coil motor as claimed in claim 4 is characterized in that, described voice coil motor further comprises a loam cake, and described loam cake has upper location hole, and described upper reference column stretches in the described upper location hole so that described loam cake is fixed on the described upper shell fragment.
6. voice coil motor as claimed in claim 5 is characterized in that, described loam cake adopts non-magnet_conductible material to make.
7. voice coil motor as claimed in claim 4 is characterized in that, described lower shell fragment is fixed on the other end of described fixed mount, and described adjustable shelf is placed between described upper shell fragment and the lower shell fragment, so that described adjustable shelf is suspended in the described fixed mount.
8. voice coil motor as claimed in claim 7, it is characterized in that, described load bearing seat has a plurality of lower location holes, described fixed mount offers a plurality of lower reference columns, described lower shell fragment has a plurality of respectively location holes of corresponding described a plurality of lower reference columns, and described lower reference column stretches in the location hole of described lower location hole and described lower shell fragment so that described lower shell fragment is fixed between described fixed mount and the load bearing seat.
9. voice coil motor as claimed in claim 1 is characterized in that, the described opening that runs through is square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210117596.4A CN103378702B (en) | 2012-04-20 | 2012-04-20 | Voice coil motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210117596.4A CN103378702B (en) | 2012-04-20 | 2012-04-20 | Voice coil motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103378702A true CN103378702A (en) | 2013-10-30 |
| CN103378702B CN103378702B (en) | 2017-06-23 |
Family
ID=49463395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210117596.4A Expired - Fee Related CN103378702B (en) | 2012-04-20 | 2012-04-20 | Voice coil motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103378702B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104849832A (en) * | 2015-05-19 | 2015-08-19 | 苏州久易光电科技有限公司 | High-stability voice coil motor used for lens driving |
| CN108173410A (en) * | 2017-12-29 | 2018-06-15 | 东莞市福鹰电子有限公司 | A kind of voice coil motor |
| CN108241197A (en) * | 2016-12-23 | 2018-07-03 | 台湾东电化股份有限公司 | Driving mechanism |
| CN108508565A (en) * | 2018-03-15 | 2018-09-07 | 信利光电股份有限公司 | A kind of cameras with fixed focus and its AA methods |
| CN108632514A (en) * | 2018-06-08 | 2018-10-09 | 昆山丘钛微电子科技有限公司 | Camera module and mobile terminal |
| US11089189B2 (en) | 2017-09-12 | 2021-08-10 | Huawei Technologies Co., Ltd. | Camera module and terminal |
| CN113691097A (en) * | 2021-07-14 | 2021-11-23 | 常州市桑豪车辆配件有限公司 | Voice coil motor and adjusting method thereof |
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| CN101334512A (en) * | 2007-06-27 | 2008-12-31 | 台湾东电化股份有限公司 | Micro-lens movable device protection structure |
| CN101567614A (en) * | 2008-04-25 | 2009-10-28 | 鸿富锦精密工业（深圳）有限公司 | Voice coil motor |
| CN101882852A (en) * | 2009-05-07 | 2010-11-10 | 鸿富锦精密工业（深圳）有限公司 | Voice coil motor |
| TW201122611A (en) * | 2009-12-28 | 2011-07-01 | Hon Hai Prec Ind Co Ltd | Camera module |
| KR20110137187A (en) * | 2010-06-16 | 2011-12-22 | 엘지이노텍 주식회사 | Voice coil motor |
| CN102332805A (en) * | 2010-07-12 | 2012-01-25 | Lg伊诺特有限公司 | Voice coil motor |
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2012
- 2012-04-20 CN CN201210117596.4A patent/CN103378702B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101334512A (en) * | 2007-06-27 | 2008-12-31 | 台湾东电化股份有限公司 | Micro-lens movable device protection structure |
| CN101567614A (en) * | 2008-04-25 | 2009-10-28 | 鸿富锦精密工业（深圳）有限公司 | Voice coil motor |
| CN101882852A (en) * | 2009-05-07 | 2010-11-10 | 鸿富锦精密工业（深圳）有限公司 | Voice coil motor |
| TW201122611A (en) * | 2009-12-28 | 2011-07-01 | Hon Hai Prec Ind Co Ltd | Camera module |
| KR20110137187A (en) * | 2010-06-16 | 2011-12-22 | 엘지이노텍 주식회사 | Voice coil motor |
| CN102332805A (en) * | 2010-07-12 | 2012-01-25 | Lg伊诺特有限公司 | Voice coil motor |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104849832A (en) * | 2015-05-19 | 2015-08-19 | 苏州久易光电科技有限公司 | High-stability voice coil motor used for lens driving |
| CN104849832B (en) * | 2015-05-19 | 2017-06-09 | 苏州久易光电科技有限公司 | A kind of high stability voice coil motor driven for lens |
| CN108241197A (en) * | 2016-12-23 | 2018-07-03 | 台湾东电化股份有限公司 | Driving mechanism |
| CN108241197B (en) * | 2016-12-23 | 2021-08-31 | 台湾东电化股份有限公司 | Driving mechanism |
| US11089189B2 (en) | 2017-09-12 | 2021-08-10 | Huawei Technologies Co., Ltd. | Camera module and terminal |
| CN108173410A (en) * | 2017-12-29 | 2018-06-15 | 东莞市福鹰电子有限公司 | A kind of voice coil motor |
| CN108508565A (en) * | 2018-03-15 | 2018-09-07 | 信利光电股份有限公司 | A kind of cameras with fixed focus and its AA methods |
| CN108632514A (en) * | 2018-06-08 | 2018-10-09 | 昆山丘钛微电子科技有限公司 | Camera module and mobile terminal |
| CN113691097A (en) * | 2021-07-14 | 2021-11-23 | 常州市桑豪车辆配件有限公司 | Voice coil motor and adjusting method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103378702B (en) | 2017-06-23 |
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Effective date of registration: 20170517 Address after: Guangdong province Shenzhen city Longhua District Dragon Road No. 83 wing group building 11 floor Applicant after: SCIENBIZIP CONSULTING (SHEN ZHEN) CO., LTD. Address before: 518109 Guangdong city of Shenzhen province Baoan District Longhua Town Industrial Zone tabulaeformis tenth East Ring Road No. 2 two Applicant before: Hongfujin Precise Industry (Shenzhen) Co., Ltd. Applicant before: Hon Hai Precision Industry Co., Ltd. |
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