CN203896165U - Three-axis voice coil motor capable of controlling lens motion - Google Patents
Three-axis voice coil motor capable of controlling lens motion Download PDFInfo
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- CN203896165U CN203896165U CN201420258022.3U CN201420258022U CN203896165U CN 203896165 U CN203896165 U CN 203896165U CN 201420258022 U CN201420258022 U CN 201420258022U CN 203896165 U CN203896165 U CN 203896165U
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- voice coil
- focusing
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- 238000013519 translation Methods 0.000 claims abstract description 28
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 16
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000010923 batch production Methods 0.000 abstract 1
- 229920003266 Leaf® Polymers 0.000 description 12
- 230000003287 optical effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
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Abstract
The utility model discloses a three-axis voice coil motor capable of controlling lens motion. The three-axis voice coil motor comprises a housing formed by a bottom cap and a magnet yoke, a lens mount arranged in the housing, at least two translation coils arranged on the periphery of the lens mount, and at least one leaf spring connected with the end portions of the lens mount and the housing. A focusing coin sleeves periphery of one end of the lens mount. Magnets interacted with the translation coils and the focusing coil are arranged on the inner wall of the magnet yoke. The three-axis voice coil motor is simple in structure, can realize an anti-shake function of a lens, is easy to match with a drive circuit, is suitable for all kinds of handsets, and is convenient for batch production.
Description
Technical field
The utility model relates to motor apparatus, relates in particular to a kind of voice coil motor that can control camera motion.
Background technology
Universal along with smart mobile phone, people are also more and more higher to the functional requirement of smart mobile phone, and for example, a lot of users wish that the smart mobile phone that the moment carries can be the same with digital camera, shoot perfect photo.Digital camera can be realized optics anti-shake (OIS) and move the technology that axle is photographed, it is the various dimensions motion that needs the mechanical structure control camera lens of relative complex, although the manufacturer of smart mobile phone is also devoted to research and development in this respect always, wherein with TDK, Mistumi, Foxconn, for representative, develop the voice coil motor (VCM) with OIS function, but the voice coil motor of above-mentioned each manufacturers produce all exists shortcoming separately, for example volume production difficulty is large, is not easy to motor drive circuit coupling, power consumption is large, and volume is bigger etc.
For example, the OIS VCM of some manufacturers produce is on the basis of existing autofocus motor, four positions, limit, outside in its structure increase corresponding Drive Structure, realize OIS function, cause the monnolithic case size of OIS VCM to reach about 10mmx10mm, volume is larger, cannot comply with the ultralight ultra-thin fashion trend of smart mobile phone, thereby most of mobile phone all cannot be installed this autofocus motor.
And, existing OIS VCM is due to its principle, employing multiple sets of motors drives, and corresponding parts cannot be public, cause its parts more, such as magnetite number needs is wanted 6-8 piece, spring (revolving spring) number needs is wanted 4-6, complex structure, assembling process is also cumbersome consuming time, and integral production cost is higher.
Moreover existing OIS VCM is general adopts 3 groups of coils to control separately, its pin be generally 6 or more than, therefore required control chip is had relatively high expectations relatively, control procedure complexity, and it is higher to control cost.
Therefore, how to provide a kind of small volume, convenient control, voice coil motor simple for structure is industry technical problem urgently to be resolved hurrily.
Summary of the invention
The utility model is in order to solve the technical problem existing in above-mentioned prior art, a kind of 3 axle voice coil motors of controlling camera motion are proposed, comprise the shell that formed by bottom and yoke, be located at lens mount in shell, be located at least 1 spring leaf of at least 2 translation coils, connection lens seat end and the outer casing end of described lens mount periphery, one end outer race of lens mount has focusing coil, and described yoke inwall is provided with and described translation coil and the interactional magnetite of focusing coil.
The translation coil of the technical program and focusing coil have multiple combination mode, and the quantity of spring leaf also can change according to actual conditions.The utility model is by the combination of focusing coil and several translation coils and corresponding magnet, can carry out the driving in multiple directions to camera lens, and can realize anti-trembling function, due to small volume of the present utility model, form the drive part of motor have multiple can global facility, therefore structure is also relatively more succinct simple, required pin number is few, make it adaptive chip structure also relatively simple, being easy to drive circuit mates, assembling is installed also convenient, overall power is lower, is more suitable for volume production and extensively promotes.
Brief description of the drawings
Fig. 1 is the explosive view of the utility model the first embodiment;
Fig. 2 is the cutaway view of the utility model the first embodiment;
Fig. 3 is the structural representation of the utility model the first embodiment spring leaf;
Fig. 4 is the explosive view of the utility model the second embodiment;
Fig. 5 is the cutaway view of the utility model the second embodiment.
Embodiment
3 axle voice coil motors of the control camera motion that the utility model provides, mainly comprise shell, lens mount 7, translation coil 4, focusing coil 5, magnetite 3, spring leaf 2.
Shell is made up of bottom 6 and yoke 1, and wherein yoke 1 adopts metal to make, and can effectively isolate the inner and outer magnetic field of housing, and the shape of shell is indefinite, can make as required cylinder, square column or polygon post.In shell, be provided with the lens mount 7 matching with its shape, lens mount 7 is connected with shell elasticity by spring leaf 2, for example, the end of lens mount can be connected with bottom or yoke top by 1 spring leaf 2, is all connected with them by 2 spring leafs.Translation coil 4 symmetries are located at the outer of lens mount 7 and place, and the quantity of translation coil 4 can be set to 2, also can according to circumstances arrange more than 2 for example 4 etc.One end outer race of lens mount 7 has a pair of focal line circle 5, is used for realizing lens focusing.The inwall of yoke 1 is provided with and translation coil 4 and the interactional magnetite 3 of focusing coil 5, and magnetite 3 at least needs to arrange 3, also can arrange multiple according to the quantity correspondence of coil.
Above-mentioned coil and magnetite constitute multiple sets of motors and drive.Wherein, magnetite 3 can be same polarity towards the side of translation coil 4 and focusing coil 5, and at this moment translation coil 4 is identical with the sense of current of focusing coil 5.Magnetite 3 can be also that plane two-stage magnetizes towards the side of translation coil 4 and focusing coil 5, and the part of corresponding translation coil 4 is a kind of polarity, and the part of corresponding focusing coil is another polarity, now the current opposite in direction of translation coil 4 and focusing coil 5.The earth electrode of these coils is all public, therefore, makes minimum needs of control device of voice coil motor that 4 pins are set, 3 respectively corresponding 2 translation coils of pin, 1 the corresponding focusing of pin coil, the common ground end that another pin is all coils.Because required pin number is few, the chip that control chip structure that control device adopts is adopted than existing OIS VCM camera lens is relatively simply too much.
Below in conjunction with accompanying drawing, two specific embodiments of the present utility model are elaborated.
Fig. 1 to Fig. 3 has provided the first embodiment of the present utility model, in this embodiment, shell and lens mount are square column, camera lens on lens mount 7 is coaxial and be parallel to optical axis with it, yoke inwall is evenly provided with 4 blocks of magnetites 3, on four sides of lens mount periphery, be provided with the translation coil 4 of respective numbers with respect to the position of magnetite, focusing coil 5 is located at one end of lens mount, therefore, 4 horizontal sliding coil place planes are perpendicular to focusing coil place plane, and magnetite 3 is same polarity towards the side of focusing coil, is all made as the S utmost point.Lens mount is equipped with spring leaf 2 in two ends Shang Xia 7, spring leaf 2 comprise one with the movable block 21 of lens mount 7 end Joints, and be distributed on the peripheral polylith fixed block 22 with outer casing end Joint of movable block, connect movable block 21 and fixed block 22 by many elasticity intercell connectors 23.Elasticity intercell connector 23 certain distance that connected between the tie point of tie point distance join fixed block 22 of movable block 21 interval, makes elasticity intercell connector enough long in the present embodiment, can support the motion of lens mount.In the present embodiment, because each coil adopts 1 common ground end, make the control device being used in conjunction with voice coil motor that 6 pins only need to be set, wherein 5 corresponding coils of difference, other 1 is common ground end, simply too much with the structure of the voice coil motor of identical function in prior art, corresponding control chip structure is also simpler.
In the time that focusing coil 5 is switched on, 4 blocks of magnetites 3 produce the active force of a parallel optical axis to lens mount, lens mount eye direction of principal axis is moved forward and backward, thereby realize the focusing of camera lens; When on lens mount when two horizontal sliding coil electricities to opposite, magnetite that can be corresponding with them interacts, lens mount 7 is produced to the thrust perpendicular to optical axis, and a side that acts on lens mount is that lens mount 7 is occurred with respect to the 11 parallel plane movement in place and the deflections of focusing coil.4 horizontal sliding coils can be controlled camera lens and on two orthogonal directions, produce and move horizontally and relative and banking motion optical axis, thereby 5 coil control camera lenses are three and the motion of the above degree of freedom.The present embodiment coordinates installing and coil 4 blocks of magnetites around by 5 coils, can realize focusing and controlled translation and deflection to camera lens, and product overall volume little, be easy to match with drive circuit.
Fig. 4 to Fig. 5 has provided the second embodiment of the present utility model, in this embodiment, shell and lens mount 7 ＇ that yoke 1 ＇ and bottom 6 ＇ form are cylindrical, yoke inwall is evenly provided with 3 magnetite 3 ＇, on lens mount, be provided with 2 translation coil 4 ＇ with respect to the position of 2 blocks of magnetites wherein, the end outer race of lens mount 7 ＇ has focusing coil 5 ＇ of annular.Spring leaf 2 ＇ between bottom 6 ＇ and lens mount 7 ＇, are connected.The present embodiment is identical with the operation principle of the first embodiment, for another kind of distortion of the present utility model, this embodiment only need use 3 blocks of magnetites, 1 spring leaf, 4 pins (also can be 6), just can realize the function of existing OIS VCM camera lens, not only greatly reduce production cost, and also reduced the complexity of the assembling of product.
Multiple sets of motors of the present utility model drives common sparing parts, such as pin, magnet, spring leaf etc., the quantity of parts is greatly reduced, thereby reduce production difficulty, and voice coil motor of the present utility model can be by size Control at 8.5*8.5mm, and area is very little, on the basis of realizing required function, can accomplish the size identical with conventional motor, be applicable to various types.
Above specific embodiment is only in order to illustrate structure of the present utility model, and those of ordinary skill in the art can make various deformation and variation under design of the present utility model, and these distortion and variation include within protection range of the present utility model.
Claims (8)
1. control 3 axle voice coil motors of camera motion for one kind, comprise the shell that formed by bottom (6) and yoke (1), be located at lens mount (7) in shell, be located at least 1 spring leaf (2) of peripheral at least 2 translation coils (4), connection lens seat end and outer casing end of described lens mount (7), it is characterized in that: one end outer race of described lens mount (7) has focusing coil (5), described yoke (1) inwall is provided with and described translation coil (4) and the focusing interactional magnetite of coil (5) (3).
2. 3 axle voice coil motors of control camera motion as claimed in claim 1, is characterized in that: between described translation coil (4) and focusing coil (5), share an earth terminal.
3. 3 axle voice coil motors of control camera motion as claimed in claim 2, is characterized in that: described spring leaf (2) is provided with 2, lays respectively at the two ends of lens mount (7).
4. 3 axle voice coil motors of control camera motion as claimed in claim 3, is characterized in that: described spring leaf (2) comprises one with the movable block (21) of lens mount (7) end Joint, be distributed on the peripheral polylith fixed block (22) with outer casing end Joint of active ring, be connected the elasticity intercell connector (23) of described movable block (21) and fixed block (22).
5. 3 axle voice coil motors of control camera motion as claimed in claim 4, it is characterized in that: described magnetite (3) is same polarity towards the side of translation coil (4) and focusing coil (5), and described translation coil (4) is identical with the sense of current of focusing coil (5).
6. 3 axle voice coil motors of control camera motion as claimed in claim 4, it is characterized in that: described magnetite (3) is that plane two-stage magnetizes towards the side of translation coil (4) and focusing coil (5) current opposite in direction of described translation coil (4) and focusing coil (5).
7. 3 axle voice coil motors of the control camera motion as described in claim 1 to 6 any one claim, it is characterized in that: described shell and lens mount are cylindrical, described yoke inwall is evenly provided with 3 blocks of magnetites (3), on described lens mount, is provided with 2 translation coils (4) with respect to the position of 2 blocks of magnetites wherein.
8. 3 axle voice coil motors of the control camera motion as described in claim 1 to 6 any one claim, it is characterized in that: described shell and lens mount are square column, described yoke inwall is evenly provided with 4 blocks of magnetites (3), is provided with the translation coil (4) of respective numbers on described lens mount with respect to the position of described magnetite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420258022.3U CN203896165U (en) | 2014-05-20 | 2014-05-20 | Three-axis voice coil motor capable of controlling lens motion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420258022.3U CN203896165U (en) | 2014-05-20 | 2014-05-20 | Three-axis voice coil motor capable of controlling lens motion |
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| Publication Number | Publication Date |
|---|---|
| CN203896165U true CN203896165U (en) | 2014-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420258022.3U Expired - Lifetime CN203896165U (en) | 2014-05-20 | 2014-05-20 | Three-axis voice coil motor capable of controlling lens motion |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103986300A (en) * | 2014-05-20 | 2014-08-13 | 深圳市世尊科技有限公司 | Three-axis voice coil motor for controlling camera movement |
| WO2015043459A1 (en) * | 2013-09-27 | 2015-04-02 | Kwok Sing Cheng | Lens driving apparatus |
| CN105763017A (en) * | 2016-05-19 | 2016-07-13 | 深圳市世尊科技有限公司 | Automatic focusing voice coil motor |
-
2014
- 2014-05-20 CN CN201420258022.3U patent/CN203896165U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015043459A1 (en) * | 2013-09-27 | 2015-04-02 | Kwok Sing Cheng | Lens driving apparatus |
| CN103986300A (en) * | 2014-05-20 | 2014-08-13 | 深圳市世尊科技有限公司 | Three-axis voice coil motor for controlling camera movement |
| WO2015176590A1 (en) * | 2014-05-20 | 2015-11-26 | 深圳市世尊科技有限公司 | Three-axis voice coil motor for controlling motion of lens |
| CN105763017A (en) * | 2016-05-19 | 2016-07-13 | 深圳市世尊科技有限公司 | Automatic focusing voice coil motor |
| CN105763017B (en) * | 2016-05-19 | 2018-05-25 | 深圳市世尊科技有限公司 | Auto-focusing voice coil motor |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191106 Address after: 610000 No.2, Qingyun North Road, Jinhua Town, Xinjin County, Chengdu City, Sichuan Province Patentee after: Chengdu 100 billion Photoelectric Technology Co.,Ltd. Address before: Dragon Street Longgang Huangge Road District of Shenzhen City, Guangdong province 518000 No. 441 Longgang Tian An Digital Innovation Park Building 1 B1403-2 Patentee before: SHENZHEN STR TECHNO Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210114 Address after: 611435 a3-1 / a3-2 / a3-5 / a3-6, 518 Qingyun North Road, Jinhua Town, Xinjin County, Chengdu City, Sichuan Province Patentee after: Chengdu Yixun Photoelectric Technology Co.,Ltd. Address before: No.2, Qingyun North Road, Jinhua Town, Xinjin County, Chengdu, Sichuan 610000 Patentee before: Chengdu 100 billion Photoelectric Technology Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240111 Address after: Room 301, Building 2, No. 88 Shengtong Street, Chengdu High tech Zone, China (Sichuan) Pilot Free Trade Zone, Chengdu City, Sichuan Province, 610000 Patentee after: Guoxing Chaogan (Chengdu) Optoelectronic Technology Co.,Ltd. Address before: 611435 a3-1 / a3-2 / a3-5 / a3-6, 518 Qingyun North Road, Jinhua Town, Xinjin County, Chengdu City, Sichuan Province Patentee before: Chengdu Yixun Photoelectric Technology Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141022 |