CN202854389U - Lens drive device, automatic focusing camera and mobile terminal device with camera - Google Patents
Lens drive device, automatic focusing camera and mobile terminal device with camera Download PDFInfo
- Publication number
- CN202854389U CN202854389U CN201220400437.0U CN201220400437U CN202854389U CN 202854389 U CN202854389 U CN 202854389U CN 201220400437 U CN201220400437 U CN 201220400437U CN 202854389 U CN202854389 U CN 202854389U
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- magnetite
- driving
- drive
- lens
- collar extension
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Abstract
The present utility model relates to a lens drive device, an automatic focusing camera and a mobile terminal device with a camera. The lens drive device comprises a lens supporting body, a ring hole and a drive mechanism; the mechanism is used for moving and driving the lens supporting body toward the optical axis direction, the drive mechanism is provided with first drive magnets which are arranged on each corner part of the peripheral sidewall of the ring hole, a circumferential winding roll along the periphery of the lens supporting body, and first drive coils respectively faced to the first drive magnets; the peripheral sidewall of ring hole is provided with a cutting part on the central part of each edge, the drive mechanism also comprises second drive magnets, and the second drive magnets are arranged on the cutting parts and faced to the first drive coils. The automatic focusing camera comprises the above lens drive device. The mobile terminal device with a camera comprises the above automatic focusing camera.
Description
Technical field
The utility model is a kind of about lens driver, automatic focusing camera and with the mobile terminal apparatus of camera.
Background technology
In the existing lens driver, for equipment miniaturization, the magnetite that drives usefulness is configured in four jiaos (for example, in TOHKEMY 2007-139810 patent gazette, recording such lens driver) of described lens driver.
But, if further advance miniaturization, just be necessary approaching configuration around the driving of the outer circumferential side that twists in the lens supports body with the outer peripheral sidewall of coil and collar extension, on the long distance of the limit section of the outer peripheral sidewall of collar extension, just can not configuration driven use magnetite.For this reason, drive with magnetite and drive with coil relative to length (area) just further diminish, driving force is with regard to deficiency.So just there is the problem of difficulty of further miniaturization.
The utility model content
Therefore, the purpose of this utility model is that driving force is large, the mobile terminal apparatus of lens driver, automatic focusing camera and the attached camera of further miniaturization in order to provide.
Lens driver of the present utility model comprises lens supports body, collar extension and driving mechanism for support of lens; Collar extension slightly is the cylinder-shaped of dimetric outer peripheral sidewall from the optical axis direction of described lens for having, and described lens supports body disposes in collar extension, can move to described optical axis direction; Driving mechanism is used for described lens supports body is moved driving to described optical axis direction, the 1st the driving and use magnetite of each bight with the described outer peripheral sidewall that is configured in described collar extension, and along the periphery of described lens supports body circumferentially around volume and and the described the 1st drive with magnetite the 1st driving coil of subtend configuration respectively; The outer peripheral sidewall of described collar extension is arranging cut portion at the central portion of each limit section, and described driving mechanism also comprises the 2nd driving magnetite, and described the 2nd driving is configured in described cut portion and uses the coil subtend to dispose with described the 1st driving with magnetite.
In the embodiment of described lens driver, described driving mechanism also has the 2nd driving coil, the described the 2nd drives with coil take the direction vertical with described optical axis as the axis winding in the 1st outside that drives with coil, and and the described the 1st drive with magnetite respectively subtend dispose.
In the embodiment of described lens driver, described driving mechanism also has the 3rd driving magnetite, the 3rd driving is configured on interior all sides of described collar extension with magnetite, the described the 3rd drives with magnetite and the described the 1st and drives with the configuration of magnetite subtend, and the described the 1st drives to drive with coil and the 2nd and get involved the described the 3rd with coil and drive to drive with magnetite and the described the 1st and use between the magnetite.
In the embodiment of described lens driver, described collar extension has all sidewalls that are positioned at described all sides, described interior all sidewalls be connected outer peripheral sidewall and connect by the front side wall that radially extends, the outer circumferential side of described interior all sidewalls arranges a magnetite in addition as the 3rd driving magnetite, and perhaps described interior all sidewalls drive by the 3rd and form with magnetite.
In the embodiment of described lens driver, the 2nd drives interior all sides of using magnetite also gives prominence to than interior all sides of the described outer peripheral sidewall of described collar extension to the inside along radial direction.
In the embodiment of described lens driver, described the 2nd driving is convex shape with magnetite, and its outshot imbeds described cut portion, and flat is followed on described outer peripheral sidewall by overlapping width.
In the embodiment of described lens driver, described flat is positioned at inboard or the outside of described outer peripheral sidewall.
In the embodiment of described lens driver, it is characterized in that length L 1 is the 2nd to drive the length along the limit section of collar extension with magnetite, L2 be the adjacent the 1st drive with magnetite along the distance between the end of the Zhou Fangxiang of the limit section of collar extension, L1＜L2 or L1 〉=L2.
Automatic focusing camera of the present utility model is characterized in, comprises aforesaid lens driver.
Mobile terminal apparatus with camera of the present utility model has aforesaid automatic focusing camera.
According to the utility model, add that being positioned at the 1st of four bights drives and use magnetite, the 2nd driving that is configured in the cut portion of outer peripheral sidewall also plays the driving effect with magnetite.Compared with there not being the 2nd occasion that drives with magnetite, the 1st drive with coil and drive with magnetite relative to length (area) larger, so and the 1st drive with the magnetic flux of coil quadrature just larger.Just because of this, can obtain the stronger driving force that gets.Also have, the 2nd driving is arranged on the cut portion of collar extension with magnetite, thus need not special space, thus can further make the lens driver miniaturization.
Description of drawings
Fig. 1 is the exploded perspective view of the lens driver in the utility model example.
Fig. 2 has installed the 2nd stereographic map that drives with the collar extension of magnetite.
Collar extension when Fig. 3 is seeing from rear side in the utility model example, the 1st drives with magnetite, the 2nd planimetric map that drives with the phase configuration of magnetite.
Fig. 4～6th, the 2nd in the utility model example drives the synoptic diagram with the variation example of the shape of magnetite, wherein
Fig. 4 is that the 2nd driving protrudes from inboard occasion with magnetite more than collar extension;
Fig. 5 drives the 2nd with magnetite overlapping width to be set, the occasion of pasting from the inboard of collar extension;
Fig. 6 is that the 2nd driving is with overlapping width being set, the occasion of pasting from the outside of collar extension on the magnetite.
(symbol description)
1 lens driver
3 collar extensions
5 lens supports bodies
7 frameworks
8 bases
9 front side springs
11 rear side springs
15 pads
16 the 2nd driving coils
17 the 1st driving magnetites
19 the 1st driving coils
27 the 2nd driving magnetites
41 terminals
42 cut portions
43 interior all sidewalls
44 outer peripheral sidewall
Embodiment
Below, describe with regard to example of the present utility model with reference to accompanying drawing.
Lens driver 1 in this example is can be assembled in mobile phone etc. with the lens driver of the automatic focusing camera of the mobile terminal apparatus of camera.
As shown in Figure 1, lens driver 1 comprises: lens supports body 5, and it is in interior all support of lens (not shown); Collar extension 3, it is freely disposing lens supports body 5 as fixed body in interior all side shiftings; Framework 7, it is configured in optical axis direction (Z direction) front side of collar extension 3; And base 8, it is configured in the rear side of collar extension 3 and is for mounted lens supporter 5.
The inboard of framework 7 is disposing front side spring 9, and this front side spring 9 comprises: peripheral part; Be configured in the interior perimembranous of interior all sides of described peripheral part; And the wrist that connects described peripheral part and described interior perimembranous.Described front side spring 9 can to the Z direction and and the X-Y direction Free Transform of Z perpendicular direction, its peripheral part is clamped between framework 7 and the collar extension 3, interior perimembranous is fixed on the front end of lens supports body 5.
As shown in Figure 1, the interior all sides that slightly are lens supports body 5 cylindraceous are fixed wtih lens (not shown).The periphery of lens supports body 5 is fixed wtih the 1st driving coil 19 and the 2nd driving coil 16 in the form of a ring in the form of a ring.
The 1st drives with coil 19 and a circumferential whole week is circular around volume along lens supports body 5.The 1st driving amounts to 4 the 2nd driving coils 16 with uniformly-spaced disposing on the periphery of coil 19 (intervals of 90 degree).As shown in Figure 1, each the 2nd drive with coil 16 respectively outside the radial direction of lens supports body 5 in the form of a ring, form being coiling coil on the direction of ring.That is, the 2nd to drive with coil 16 be that direction with light shaft positive cross is around its axis.
Each the 2nd driving is stacked in the 1st with coil 16 and drives the outer peripheral face of using coil 19, and the 1st driving uses magnetite 17 and the 2nd driving to face mutually setting with coil 16, and the 1st driving is faced with the 2nd driving each limit section with coil 16 mutually with interior all sides of magnetite 17.
Each the 1st drives with magnetite 17 and is configured on the inboard of outer peripheral sidewall 44 in each bight of collar extension 3.In addition, each the 1st drive with magnetite 17 drive with coil 16 via the 2nd of opposite and and the 1st drive use coil 19 relative to.
Also have, as shown in Figure 1, the outer peripheral sidewall 44 of collar extension 3 is consisted of by being dimetric four limit sections, the cross section is being set respectively on about central portion of four limit sections slightly is being dimetric cut portion 42, be fixed wtih respectively on each cut portion 42 and the shape of this cut portion 42 matches the 2nd drives with magnetite 27.As shown in Figures 1 and 2, the 2nd driving is lamellar with magnetite 27, and the shape of its shape and cut portion 42 is basic identical, and the thickness of the outer peripheral sidewall 44 of thickness and collar extension 3 is basic identical.In addition, drive the cut portion 42(Fig. 1 that is fixed in collar extension 3 with magnetite 27 to the 2nd) when going up, can be fixed by glue.It is to magnetize towards radial direction together that the 1st driving drives with magnetite 27 with magnetite 17 and the 2nd.
Rear side spring 11 comprises: peripheral part; Be configured in the interior perimembranous of interior all sides of described peripheral part; And the wrist that connects described peripheral part and described interior perimembranous.Described rear side spring 11 can be to Z direction and X-Y direction Free Transform.Described peripheral part is clamped between base 8 and the pad 15, and described interior perimembranous is fixed on the rear end of lens supports body 5.Like this, lens supports body 5 is just supporting to optical axis direction (Z direction) and X-Y direction by front side spring 9 and rear side spring 11 with being moved freely.
From predetermined power supply (not shown) via terminal 41 or be arranged on the front side terminal (not shown) of front side and drive with coil 19 and to the 2nd driving to the 1st and to power with coil 16.Disposing pad 15 and the front side pad (not shown) of insulativity between terminal 41 and collar extension 3 and front side terminal (not shown) and the collar extension 3.
Below, the occasion when in the utility model example lens being focused automatically describes.
When lens are focused automatically, at first, pass into electric current by driving to the 1st with coil 19, and lens supports body 5 is moved to optical axis direction.Then, lens supports body 5 just stops at the making a concerted effort and the 1st drive with coil 19 and the 1st and drive the position of balancing each other with the electromagnetic force of generation between the magnetite 27 with magnetite 17 and the 2nd driving of the application of force of the fore-and-aft direction of front side spring 9 and rear side spring 11.
In this occasion, drive with the effect (effectiveness) of magnetite 17 except being positioned at the 1st of four angles, be configured in the 2nd the driving with magnetite 27 also work (effectiveness) of cut portion 42 of collar extension 3, so with do not have the 2nd to drive and to compare with the occasion of magnetite 27, the 1st drive with coil 19 and drive with magnetite (the 1st drives with magnetite 17 and the 2nd driving magnetite 27) relative to length (area) larger.So, drive with the 1st that the magnetic flux of quadrature is also just larger mutually with coil 19.Just because of this, can access stronger driving force.
Also have, the 2nd driving is configured to almost replace the cut portion 42 of collar extension 3 with magnetite 27 like this, so need not special space, just obtains stronger driving force at optical axis direction, simultaneously, and also can be with lens driver 1 further miniaturization.
In the utility model example, except can carrying out automatic focusing function, also have hand and tremble debugging functions.Below, tremble debugging functions with regard to the adversary and describe.
To the flating that causes such as trembling owing to user's hand when revising, lens supports body 5 is moved to the X-Y direction with light shaft positive cross.Therefore, by driving the electric current that passes into predetermined value with coil 16 to the predetermined the 2nd, make between driving with magnetite 17 the 1st to produce the electromagnetic force of being scheduled to, lens supports body 5 is moved to the X-Y direction of being scheduled to.Lens supports body 5 just stop at front side spring 9 and rear side spring 11 the X-Y direction the application of force make a concerted effort with the 2nd drive with coil 16 and each corresponding the 1st drive the position that the electromagnetic force with generation between the magnetite 17 balances each other.
Example of the present utility model is not limited to above-mentioned example, can do all distortion in the scope that does not break away from main idea of the present utility model.For example, though be take automatically to focus lens as example, also can be applicable to zoom lens.
Also have, interior all sidewalls 43 and outer peripheral sidewall 44 have been showed integrally formed example, but also can form combination with split.Also have, also can save interior all sidewalls 43 of collar extension 3.In addition, a magnetite (as the 3rd driving magnetite) also can be set in addition at the outer circumferential side of interior all sidewalls 43.Magnetite (the 3rd driving magnetite) also can be set replace interior all sidewalls 43.Magnetite shape in this case can be made the shape as interior all sidewalls 43.The 3rd drive with magnetite get involved the 1st drive drive with coil 16 with coil 19 and the 2nd after with the 1st drive use magnetite 17 relative to.
Also have, as shown in Figure 3, length L 1 is the 2nd to drive the length along the limit section of collar extension 3 with magnetite 27, L2 be the adjacent the 1st drive with magnetite 17 along the distance between the end of the Zhou Fangxiang of the limit section of collar extension 3.In this example, L1＜L2.But also can be L1 〉=L2.
Also have, as shown in Figure 4, also can be that the 2nd driving is more outstanding (with respect to this along radial direction compared with interior all sides 31 of the outer peripheral sidewall 44 of collar extension 3 with interior all sides 271 of magnetite 27, in the example as shown in Figure 3, interior all sides 31 of interior all sides 271 of the 2nd driving usefulness magnetite 27 and the outer peripheral sidewall 44 of collar extension 3 are almost on the same face).Like this, the 2nd thickness that drives with magnetite 27 becomes large, obtains stronger driving force thereby be of value to.
Also have, drive the 2nd when being installed on the cut portion 42 of collar extension 3 with magnetite 27, can be that cross section such as Fig. 5 is that the 2nd of convex character shape (have flat 272 and from the outstanding outshot 273 of smooth part) drives with magnetite 27, also can be that cross section such as Fig. 6 is that the 2nd of convex character shape (have flat 272 and from the outstanding outshot 273 of smooth part) drives with magnetite 27.The outshot of type imbeds cut portion 42 with magnetite, and flat is followed on outer peripheral sidewall 44 by overlapping width.The 2nd of convex character shape drives can a permanent magnet to consist of also with magnetite 27 integral body and does not make much difference, and also the part of magnetite can be sticked on the thin plate, and such as the occasion of Fig. 6, this thin plate can consist of with the soft magnet material identical with collar extension 3.Because be provided with overlapping width, so then easily.Even if when being subject to impacting, the 2nd driving also is not easy to come off with magnetite.In the occasion such as Fig. 5, with the 1st drive with magnetite 17 mutually continuously after, almost can cover internal face 31 integral body of the outer peripheral sidewall 44 of collar extension 3.In the occasion such as Fig. 6, even if integral body has been carried out also being fixed after the assembling.
Claims (10)
1. lens driver comprises:
The lens supports body is used for support of lens;
Collar extension from the optical axis direction of described lens, is the cylinder-shaped of dimetric outer peripheral sidewall for having, and described lens supports body disposes in collar extension, can move to described optical axis direction; And
Driving mechanism, being used for driving described lens supports body moves along described optical axis direction, the 1st the driving and use magnetite of each bight with the described outer peripheral sidewall that is configured in described collar extension, and along the periphery of described lens supports body circumferentially around volume and and the described the 1st drive with magnetite the 1st driving coil of subtend configuration respectively;
It is characterized in that,
The outer peripheral sidewall of described collar extension is arranging cut portion at the central portion of each limit section, and described driving mechanism also comprises the 2nd driving magnetite, and described the 2nd driving is configured in described cut portion and uses the coil subtend to dispose with described the 1st driving with magnetite.
2. lens driver as claimed in claim 1, it is characterized in that described driving mechanism also has the 2nd driving coil, the described the 2nd drives with coil take the direction vertical with described optical axis as the axis winding in the 1st outside that drives with coil, and and the described the 1st drive with magnetite respectively subtend dispose.
3. lens driver as claimed in claim 2, it is characterized in that described driving mechanism also has the 3rd driving magnetite, the 3rd driving is configured on interior all sides of described collar extension with magnetite, the described the 3rd drives with magnetite and the described the 1st and drives with the configuration of magnetite subtend, and the described the 1st drives to drive with coil and the 2nd and get involved the described the 3rd with coil and drive to drive with magnetite and the described the 1st and use between the magnetite.
4. lens driver as claimed in claim 3, it is characterized in that described collar extension has all sidewalls that are positioned at described all sides, described interior all sidewalls be connected outer peripheral sidewall and connect by the front side wall that radially extends, the outer circumferential side of described interior all sidewalls arranges a magnetite in addition as the 3rd driving magnetite, and perhaps described interior all sidewalls drive by the 3rd and form with magnetite.
5. lens driver as claimed in claim 1 is characterized in that the 2nd driving is also more outstanding to the inside than interior all sides of the described outer peripheral sidewall of described collar extension along radial direction with interior all sides of magnetite.
6. lens driver as claimed in claim 1 is characterized in that described the 2nd driving is convex shape with magnetite, and its outshot imbeds described cut portion, and flat is followed on described outer peripheral sidewall by overlapping width.
7. lens driver as claimed in claim 6 is characterized in that described flat is positioned at inboard or the outside of described outer peripheral sidewall.
8. lens driver as claimed in claim 1, it is characterized in that length L 1 is the 2nd to drive the length along the limit section of collar extension with magnetite, length L 2 is that the 1st adjacent driving uses magnetite along the distance between the end of the Zhou Fangxiang of the limit section of collar extension, L1＜L2 or L1 〉=L2.
9. an automatic focusing camera is characterized in that, comprises the lens driver such as claim 1 each record to the claim 8.
10. the mobile terminal apparatus with camera is characterized in that, has the automatic focusing camera such as claim 9 record.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220400437.0U CN202854389U (en) | 2012-08-13 | 2012-08-13 | Lens drive device, automatic focusing camera and mobile terminal device with camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220400437.0U CN202854389U (en) | 2012-08-13 | 2012-08-13 | Lens drive device, automatic focusing camera and mobile terminal device with camera |
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| Publication Number | Publication Date |
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| CN202854389U true CN202854389U (en) | 2013-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201220400437.0U Expired - Fee Related CN202854389U (en) | 2012-08-13 | 2012-08-13 | Lens drive device, automatic focusing camera and mobile terminal device with camera |
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| CN (1) | CN202854389U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592737A (en) * | 2012-08-13 | 2014-02-19 | 思考电机（上海）有限公司 | Lens drive device, automatic focusing camera and mobile terminal device with camera |
| US20170097517A1 (en) * | 2015-10-02 | 2017-04-06 | Tdk Taiwan Corp. | Electromagnetic driving module and lens driving device using the same |
| CN106646810A (en) * | 2016-11-11 | 2017-05-10 | 上海比路电子股份有限公司 | Lens drive device |
| TWI582526B (en) * | 2015-10-02 | 2017-05-11 | 台灣東電化股份有限公司 | Electromagnetic driving module and lens driving device using the same |
-
2012
- 2012-08-13 CN CN201220400437.0U patent/CN202854389U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592737A (en) * | 2012-08-13 | 2014-02-19 | 思考电机（上海）有限公司 | Lens drive device, automatic focusing camera and mobile terminal device with camera |
| CN103592737B (en) * | 2012-08-13 | 2016-03-30 | 新思考电机有限公司 | The mobile terminal apparatus of lens driver, auto-focusing machine and band camera |
| US20170097517A1 (en) * | 2015-10-02 | 2017-04-06 | Tdk Taiwan Corp. | Electromagnetic driving module and lens driving device using the same |
| CN106560736A (en) * | 2015-10-02 | 2017-04-12 | 台湾东电化股份有限公司 | Electromagnetic driving module and lens driving device using same |
| TWI582526B (en) * | 2015-10-02 | 2017-05-11 | 台灣東電化股份有限公司 | Electromagnetic driving module and lens driving device using the same |
| US10162190B2 (en) * | 2015-10-02 | 2018-12-25 | Tdk Taiwan Corp. | Electromagnetic driving module and lens driving device using the same |
| CN106560736B (en) * | 2015-10-02 | 2019-04-19 | 台湾东电化股份有限公司 | Electromagnetic driving module and lens driving device using same |
| US10935808B2 (en) | 2015-10-02 | 2021-03-02 | Tdk Taiwan Corp. | Electromagnetic driving module and lens driving device using the same |
| CN106646810A (en) * | 2016-11-11 | 2017-05-10 | 上海比路电子股份有限公司 | Lens drive device |
| CN106646810B (en) * | 2016-11-11 | 2024-01-19 | 上海比路电子股份有限公司 | Lens driving device |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: XINSIKAO ELECTRIC MOTOR CO., LTD. Free format text: FORMER OWNER: SIKAO ELECTRIC MOTOR (SHANGHAI) CO., LTD. Effective date: 20150717 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150717 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. |
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| 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: 20130403 Termination date: 20170813 |