CN102819087B - Lens drive device, automatic focusing camera and mobile terminal with camera - Google Patents
Lens drive device, automatic focusing camera and mobile terminal with camera Download PDFInfo
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- CN102819087B CN102819087B CN201210189525.5A CN201210189525A CN102819087B CN 102819087 B CN102819087 B CN 102819087B CN 201210189525 A CN201210189525 A CN 201210189525A CN 102819087 B CN102819087 B CN 102819087B
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- lens
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Abstract
The present invention discloses a lens drive device capable of preventing foreign matter from intruding, an automatic focusing camera and a mobile terminal with a camera. The invention includes: a lens support body for supporting the lens; a coil disposed on the periphery of the lens supporting body; an annular ring opening which can arrange the lens supporting body in a mobile way on the inner circumference side; a magnet fixed on the ring opening and arranged opposite to the coil; a spring electrically connected with the coil and at the same time for maintaining the lens supporting body to move freely; and a base disposed on one side of the ring opening at the optical axis direction and for holding a back side spring. A protruding wall which is opposite to the inner circumference side of the periphery side wall of the ring opening is formed on the base.
Description
Technical field
The present invention is the mobile terminal of associated lens drive unit, auto-focus camera and having camera.Called mobile terminal refers to mobile phone, mobile information terminal (PDA), notebook computer etc.
Background technology
In patent document 1 (TOHKEMY 2010-190923 publication), disclose a kind of lens driver, from the moving body of lens, in image side, there is base; The shell covering moving body is fixed on this base; After intervention lens, be formed through imaging apparatus plays light peristome to incident light; The surrounding of this peristome, towards image side, is formed by the dust storage recess fallen in.According to the technology of this patent document 1, by dust storage recess dust caught and kept, so dust can be prevented to be adsorbed on imaging apparatus by base openings portion.
In patent document 2 (TOHKEMY 2009-251517 publication), disclose a kind of lens driver, keep the lens mount of lens and lens mount to be contained in inside.Be fixed on a side of the resettlement section on base, be formed with the whole projection be surrounded of the opening to major general's one place around.According to the technology of this patent document 2, prevent foreign matter can from this situation invading lens driver between lens mount and resettlement section.
In patent document 3 (TOHKEMY 2009-139942 publication), disclose a kind of lens driver, have: the moving body keeping lens; Support the supporter of its moving body; Moving body is configured in inner side, the collar extension be fixed on supporter.Supporter is formed make through lens, the reflected light of coming from subject injects peristome imaging apparatus.At the periphery of this peristome, be formed with the protuberance on outstanding mobile side.According to the technology of this patent document 3, when manufacturing assembling, the slip powder of generation can drop on supporter, prevents this slip powder fall from the peristome sheltered from by protuberance thus be adsorbed on imaging apparatus.
But the part that the foreign matter of the inside of lens driver combines from the collar extension of the outside towards lens cover drive unit and base sometimes invades.
But, in the technology of patent document 1,2 and 3, even if the foreign matter invading lens driver inside can be prevented to be adsorbed on imaging apparatus, but block allotrylic formation, so just can not prevent foreign matter from can invade from lens driver externally to inside because do not have in the collar extension and base of lens driver outside.
Summary of the invention
Therefore, object described later is the mobile terminal for providing a kind of lens driver, auto-focus camera and the having camera that can prevent foreign matter from invading externally to inside.
For the 1st invention realizing described object is have: inner circumferential is the lens supports body of support of lens; Be arranged on the coil on lens supports external week; The ring-type collar extension that lens supports body can be configured with moving freely in inner circumferential side; To be fixed in collar extension and the magnetite configured with coil subtend; Electrical resistance is connected on coil, lens supports body is carried out with moving freely the spring that keeps simultaneously; Be configured in collar extension optical axis direction side, maintain the base of spring.A kind of lens driver is characterized by, and according to the electromagnetic force that spring produces after coil electricity, lens supports body moves forward and backward along lens axis direction.On base, the position that the inner peripheral surface of the outer peripheral sidewall of collar extension configures is formed with the outstanding wall that the inner peripheral surface of periphery wall is therewith relative.
The further feature of the 1st invention is, the periphery of base sees that on front side of optical axis direction its plane is square shape.Spring is the leaf spring of ring-type, has the inner periphery side portion be fixed on lens supports body, the periphery sidepiece be fixed on base, connects the wrist of the elastically deformable of each inner periphery side portion and periphery sidepiece.The bight that periphery sidepiece has from base is adjacent extends to another bight, has the long leg be configured at inside outstanding wall.
The further feature of the 1st invention is, base is formed the fitting portion with the end tabling of spring.
The further feature of the 1st invention is, the periphery sidepiece of spring also has the end side at long leg, extends to and long leg phase orthogonal directions, the short leg shorter than long leg; In another side of long leg, extend to the edge that continues with long leg phase orthogonal directions.
The further feature of the 1st invention is, spring is made up of the side's sidepiece be separated and the opposing party's sidepiece, and the edge that continues of side's sidepiece and the opposing party's sidepiece is configured on the position that adjoins each other.
2nd invention is auto-focus camera, has aforesaid lens driver.
3rd invention is the mobile terminal of having camera, is equipped with aforesaid auto-focus camera.
According to the 1st invention, base is formed by the outstanding wall of the inner peripheral surface subtend with collar extension outer peripheral sidewall, so once be fixed on base by collar extension, the outstanding inner peripheral surface of wall just in collar extension is relative.Accordingly, the foreign matter of the outside of lens driver, hinders block, so can prevent foreign matter invading externally to inside from lens driver even if the part combined from base in collar extension enters and is highlighted wall.
According to the further feature of the 1st invention, because the long leg of spring is configured at the inner side of teat, so the long leg of spring can project to outside, so can prevent from contacting with other parts and causing short circuit from the gap of base and collar extension.
According to the further feature of the 1st invention, because define the fitting portion with spring end tabling on base, so the end of spring externally can be given prominence to from the gap of base and collar extension, can prevent from contacting with other parts and causing short circuit.
Described mobile terminal refers to mobile phone, mobile information terminal (PDA), notebook computer etc.
Accompanying drawing explanation
The part oblique view of lens driver in [Fig. 1] relevant example.
[Fig. 2] is correlated with example lens driver partial top view.
B-B sectional view shown in [Fig. 3] Fig. 2
C-C sectional view shown in [Fig. 4] Fig. 2
The lens driver exploded perspective view of [Fig. 5] relevant example.
A-A schematic cross-section shown in [Fig. 6] Fig. 7.
Lens driver outline outward appearance oblique view in [Fig. 7] example.
Main Reference Numerals explanation
1 lens driver
3 collar extensions
3a outer peripheral sidewall
5 lens supports bodies
8 bases
8c gives prominence to wall
Spring on rear side of in the of 11
13 magnetites
19 coils
Embodiment
Below, with reference to Fig. 1 ~ Fig. 7 of accompanying drawing, example of the present invention is described in detail.Lens driver 1 in this example relevant is the lens driver of the auto-focus camera be assembled in mobile phone.
This lens driver 1, as shown in Figure 5, have the collar extension 3 of ring-type, lens supports body 5, be configured in collar extension 3 optical axis direction on front side of front side spring 9, be configured in framework 7 on front side of the spring 9 of front side, be configured in base 8 on rear side of collar extension 3 and rear side spring 11.Be configured in the rear side pad 15 between rear side spring 11 and collar extension 3.
Its periphery plane is in quadrangle viewed from front side for collar extension 3, and inner circumferential plane is rounded.It is the connecting wall 3c be connected separately with inner circumferential sidewall 3b by outer peripheral sidewall 3a, inner circumferential sidewall 3b, outer peripheral sidewall 3a.Outer peripheral sidewall 3a, inner circumferential sidewall 3b and its interface of connecting wall 3c are コ word shape.On inner circumferential sidewall 3b, forwards formed by cut portion 12 from rear side end.Cut portion 12 configures in the circumferential direction at equal intervals, in this example, in the dimetric periphery wall 3a of plane, is arranged on the position corresponding with (part on limit) between adjacent corners 14.
On each bight 14 of collar extension 3, magnetite 13 is fixed on the inner peripheral surface of outer peripheral sidewall 3a.Magnetite 13 is arranged on bight 4, not on the correspondence position of cut portion 12 being formed at inner circumferential sidewall 3b.
The slightly cylindrical shape of lens supports body 5, perimembranous does not have mounted lens (not shown) within it, is arranged to move freely along optical axis direction in the inner circumferential side of collar extension 3.The coil 19 of ring-type is fixed on the periphery of lens supports body 5.
As shown in Figure 6, coil 19 is configured between the outer peripheral sidewall 3a of collar extension 3 and inner circumferential sidewall 3b, on certain bight 14 between magnetite 13 and inner circumferential sidewall 3b, is displaced in collar extension 3 together with lens supports body 5 with fore-and-aft direction.
As shown in Figure 5, front side spring 9 is ring-type leaf spring.Be provided with inner periphery side portion 9a and periphery sidepiece 9b.Inner periphery side portion 9a is fixed on lens supports body 5.Outer circumferential side 9b is clamped and fastened between collar extension 3 and framework 7.Inner circumferential side 9a is connected according to the wrist 9c of elastically deformable with outer circumferential side 9b.
The periphery of base 8 sees that on front side of optical axis direction its plane is the insulative resin materials with through hole in quadrangle, in central authorities.In the periphery of base 8, on each bight, be equipped with foot 8a, and foot's 7a tabling of framework 7 is fixed.On the outer peripheral face of the square shape of base 8, on one side, 2 terminals 33,35, by adjacent configuration, are formed by the fitting portion 8b of the end tabling of rear side spring 11.
As shown in Figure 3, on fitting portion 8b, form the ditch portion 80b with the end tabling of rear side spring 11.The end of rear side spring 11 is fitted on ditch portion 80b, configures successively into rear side pad 15, collar extension 3 from front side.
As shown in Figure 5, on base 8, formed by the relative outstanding wall 8c of the slightly whole side face of the inner peripheral surface of the outer peripheral sidewall 3a with collar extension 3.
It is the leaf spring of a ring-type to rear side spring 11 as a whole.In this example, it is made up of the sidepiece 20 and another sidepiece 22 that are separated into left and right.A rear side pad 15 with insulator of each periphery sidepiece 11b of rear side spring 11 is held between base 8 and collar extension 3 together.Rear side pad 15 plays electrical resistance insulating effect between rear side spring 11 and collar extension 3.Each inner periphery side portion 11a is fixed on lens supports body 5.Each inner periphery side portion 11a of rear side spring 11 is be connected by the wrist 11c of elastically deformable with periphery sidepiece 11b.
As shown in Figures 1 and 2, each periphery sidepiece 11b has: the long leg 110b extending to another bight from an adjacent bight of base 8; In the end side of long leg 110b, extend to and long leg 110b phase orthogonal directions, the short leg 111b shorter than long leg 110b; In another side of long leg 110b, extend to the edge 112b that continues with long leg 110b phase orthogonal directions.The edge 112b that continues of one side's sidepiece 20 and the opposing party's sidepiece 22 is configured on the position that adjoins each other.Metal terminal 33,35(are with reference to figure 5) be connected respectively and respectively continue on edge 112b.
As shown in Figure 4, long leg 110b is configured in the inner side of the outstanding wall 8c of base 8.Together with rear side pad 15, be clamped between base 8 and collar extension 3.
As shown in Figure 2, short leg 111b and the edge 112b that continues is configured in the outside of outstanding wall 8c.In addition, as shown in Figure 3, the edge 112b that continues is entrenched in the fitting portion 8b of base 8, is clamped between base 8 and collar extension 3 together with rear side pad 15.
In addition, a sidepiece 20 of rear side spring 11 is connected to an end of coil 19, and another sidepiece 22 of rear side spring 11 is connected to another end (not shown) of coil 19.
Next, the assembling of the lens driver 1 of relevant example, functions and effects are described.
First the assembling of lens driver 1 is fixedly entered in the base 8 of resin forming by rear side spring 11.
Specifically, as shown in Figures 1 and 2, the long leg 110b of each periphery sidepiece 11b of rear side spring 11 is configured in the inner side of the outstanding wall 8c of base 8, short leg 11b and the edge 112b that continues is configured in the outside of outstanding wall 8c, the end of the edge 112b that continues is fitted together in the fitting portion 8b of base 8.
Next, metal terminal 33,35 is connected to rear side spring 11 respectively continue on edge 112b; Secure the base 8 of the periphery sidepiece 11b of rear side spring 11; As shown in Figure 5, rear side pad 15, coil 19 are fixed on the lens supports body 5 of outer peripheral face; The fixing collar extension 3 of magnetite 13 on inner circumferential side; Front side spring 9 and framework 7; These are assembled successively fixing.
Then, by one end of coil 19 by then material or be solder-connected on the inner periphery side portion 11a of the sidepiece 20 forming rear side spring 11, by another end of coil 19 by then material or be solder-connected on the inner periphery side portion 11a of another sidepiece 22 forming rear side spring 11.
The lens driver 1 of this example be equipped in mobile phone, metal terminal 33 and metal terminal 35 as power supply terminal, its rear end is connected on the power supply terminal (not shown) of circuit substrate (not shown) e. g. by modes such as welding.
Lens driver 1 when driving, it be by from being connected to the sidepiece 20 of power supply terminal 33 to rear side spring 11 of substrate, coil 19, another sidepiece 22 of rear side spring 11, the metal terminal 35 be connected on the power supply terminal of circuit substrate carry out DC current circulation.Now, base 8 is insulating material.Due to metal terminal 33 and metal terminal 35 configured separate, so between metal terminal 33 and metal terminal 35 after intervention base 8, no current leaks.
Like this, once be energized to coil 19, by acting on the electromagnetic force of coil 19, resisting the precompression in front side spring 9 and rear side spring 11 that lens supports body is moved mutually, when reaching equilibrium locations between the power of front side spring 9, rear side spring 11, moving stopping.
According to example of the present invention, because on base 8, formed by the relative outstanding wall 8c of the inner peripheral surface of the outer peripheral sidewall 3a with collar extension 3, thus on base 8 once fixing collar extension 3, outstanding wall 8c is relative with the inner peripheral surface of collar extension 3.Accordingly, even if the foreign matter of the outside of lens driver enters the part that base 8 combines with collar extension 3, because the effect of outstanding wall 8c can shelter from.So, can prevent foreign matter can invading externally to inside from lens driver 1.
The long leg 110b of rear side spring 11 is configured in the inner side of outstanding wall 8c, so the long leg 110b of rear side spring 11 projects to outside from the gap between base 8 and collar extension 3, can prevent from causing short circuit because touching other parts.
Base 8 defines the fitting portion 8b of a sidepiece 20 of rear side spring 11 and the edge 112b tabling that continues of another sidepiece 22, so the edge 112b that continues of rear side spring 11 projects to outside from the gap between base 8 and rear side pad 15, can prevent from contacting other parts and causing short circuit.
The invention is not restricted to above-mentioned example, only otherwise depart from main scope of the present invention can do all distortion may.Such as, in above-mentioned example, long leg 110b is only configured in the inner side of the outstanding wall 8c of base 8 by rear side spring 11, is not limited thereto, and short leg 111b and the edge 112b that continues also can be configured in the inner side of outstanding wall 8c.
In addition, in above-mentioned example, the edge 112b that continues an of sidepiece 20 and the other side 22 configures adjacent position mutually.Be not limited thereto, also can be arranged on the position be separated from each other, or in periphery be Different Plane the base 8 of polygon on, be arranged to different edge, different positions also can form fitting portion 8b.
Further, as long as the outer peripheral sidewall 3a of collar extension 3 forms the outstanding wall 8c relative with the side face of inner circumferential surface.Plane is that toroidal is also passable, and bight 14 is not chamfer shape, such as, can be circular shape.
Claims (7)
1. lens driver, has
It inner circumferential is the lens supports body of support of lens;
Be arranged on the coil on lens supports external week;
The ring-type collar extension that lens supports body can be configured with moving freely in inner circumferential side;
To be fixed in collar extension and the magnetite configured with coil subtend;
Electrical resistance is connected on coil, lens supports body is carried out with moving freely the spring that keeps simultaneously; And
Be configured in collar extension optical axis direction side, maintain the base of spring;
Wherein, according to the electromagnetic force that spring produces after coil electricity, lens supports body moves forward and backward along lens axis direction;
It is characterized in that,
On base, be formed with the outstanding wall relative with the whole inner peripheral surface of the outer peripheral sidewall of collar extension, accordingly, even if the foreign matter of the outside of lens driver enters the part that base combines with collar extension, because the effect of outstanding wall can shelter from, so, can prevent foreign matter can invading externally to inside from lens driver.
2. lens driver as claimed in claim 1, it is characterized in that, the periphery of base sees that on front side of optical axis direction its plane is square shape, spring is the leaf spring of ring-type, have the inner periphery side portion be fixed on lens supports body, the periphery sidepiece be fixed on base, connect the wrist of the elastically deformable of each inner periphery side portion and periphery sidepiece, periphery sidepiece has and extends to another bight from the bight that base is adjacent, is configured at long leg inside outstanding wall.
3. lens driver as claimed in claim 1, is characterized in that, base is formed the fitting portion with the end tabling of spring.
4. lens driver as claimed in claim 3, it is characterized in that, the periphery sidepiece of spring also has the end side at long leg, extends to and long leg phase orthogonal directions, the short leg shorter than long leg; In another side of long leg, extend to the edge that continues with long leg phase orthogonal directions.
5. lens driver as claimed in claim 4, it is characterized in that, spring is made up of the side's sidepiece be separated and the opposing party's sidepiece, and the edge that continues of side's sidepiece and the opposing party's sidepiece is configured on the position that adjoins each other.
6. auto-focus camera, is characterized in that, has the lens driver that claim 1 to any one of claim 5 is recorded.
7. the mobile terminal of having camera, is characterized in that the auto-focus camera being equipped with claim 6 record.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-130021 | 2011-06-10 | ||
| JP2011130021A JP2012255972A (en) | 2011-06-10 | 2011-06-10 | Lens drive device, autofocus camera, and mobile terminal with camera |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102819087A CN102819087A (en) | 2012-12-12 |
| CN102819087B true CN102819087B (en) | 2015-01-28 |
Family
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210189525.5A Active CN102819087B (en) | 2011-06-10 | 2012-06-08 | Lens drive device, automatic focusing camera and mobile terminal with camera |
| CN 201220271811 Expired - Lifetime CN202615021U (en) | 2011-06-10 | 2012-06-08 | Lens driving device, automatic focusing camera and mobile terminal with camera |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220271811 Expired - Lifetime CN202615021U (en) | 2011-06-10 | 2012-06-08 | Lens driving device, automatic focusing camera and mobile terminal with camera |
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| Country | Link |
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| JP (1) | JP2012255972A (en) |
| CN (2) | CN102819087B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012068275A (en) * | 2010-09-21 | 2012-04-05 | Shicoh Engineering Co Ltd | Lens drive device, autofocus camera, and mobile terminal with camera |
| JP2012255972A (en) * | 2011-06-10 | 2012-12-27 | Shicoh Engineering Co Ltd | Lens drive device, autofocus camera, and mobile terminal with camera |
| TWI468769B (en) * | 2013-12-11 | 2015-01-11 | Tdk Taiwan Corp | An apparatus having a spring plate connecting with 3d circuit terminals |
| JP6583601B2 (en) | 2014-08-06 | 2019-10-02 | ミツミ電機株式会社 | Lens holder driving device and camera-equipped mobile terminal |
| CN104407426B (en) * | 2014-09-29 | 2016-06-01 | 河南省皓泽电子有限公司 | The lens driver of a kind of simple and easy voice coil loudspeaker voice coil motor |
| KR102542645B1 (en) * | 2015-08-18 | 2023-06-14 | 엘지이노텍 주식회사 | Lens driving device, camera module and optical apparatus |
| JP6605255B2 (en) * | 2015-08-20 | 2019-11-13 | 日本電産コパル株式会社 | Lens unit, camera, electronic device, lens unit assembling method, camera manufacturing method, and electronic device manufacturing method |
| CN108072957B (en) * | 2016-11-14 | 2022-05-24 | 台湾东电化股份有限公司 | Optical drive mechanism |
| CN109302041B (en) * | 2018-11-02 | 2024-03-22 | 辽宁中蓝光电科技有限公司 | Mutually embedded anti-interference high-thrust voice coil motor |
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| GB0702835D0 (en) * | 2007-02-14 | 2007-03-28 | Johnson Electric Sa | Lens module |
| JP2008268474A (en) * | 2007-04-19 | 2008-11-06 | Tricore Corp | Voice coil type lens drive device |
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| JP4923226B2 (en) * | 2007-11-14 | 2012-04-25 | 日本電産サンキョー株式会社 | Lens driving device and coil winding method |
| JP5238991B2 (en) * | 2007-11-14 | 2013-07-17 | 日本電産サンキョー株式会社 | Lens drive device |
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| JP5430361B2 (en) * | 2009-11-10 | 2014-02-26 | 日本電産サンキョー株式会社 | Lens drive device |
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- 2011-06-10 JP JP2011130021A patent/JP2012255972A/en active Pending
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- 2012-06-08 CN CN 201220271811 patent/CN202615021U/en not_active Expired - Lifetime
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Also Published As
| Publication number | Publication date |
|---|---|
| CN102819087A (en) | 2012-12-12 |
| CN202615021U (en) | 2012-12-19 |
| JP2012255972A (en) | 2012-12-27 |
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Owner name: XINSIKAO ELECTRIC MOTOR CO., LTD. Free format text: FORMER OWNER: SIKAO ELECTRIC MOTOR (SHANGHAI) CO., LTD. Effective date: 20150722 |
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Effective date of registration: 20150722 Address after: 314112 Jiashan City, Jiaxing province Huimin County Street, No., Jia Jia Road, building 3, 1 floor, 58 Patentee after: New math courses Electric Machine Co., Ltd Address before: 201613 No. 38 Teng Teng Road, Songjiang District export processing zone, Shanghai, China Patentee before: Shicoh Motor (Shanghai) Co., Ltd. |