CN205880329U - Closed loop AF auto focus lens drive arrangement - Google Patents

Closed loop AF auto focus lens drive arrangement Download PDF

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Publication number
CN205880329U
CN205880329U CN201620158885.2U CN201620158885U CN205880329U CN 205880329 U CN205880329 U CN 205880329U CN 201620158885 U CN201620158885 U CN 201620158885U CN 205880329 U CN205880329 U CN 205880329U
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China
Prior art keywords
holding tank
wiring board
magnet
drive
feedback
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CN201620158885.2U
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Chinese (zh)
Inventor
闫敏
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Henan Hozel Electronics Co Ltd
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Individual
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Abstract

The utility model discloses a closed loop AF auto focus lens drive arrangement, including frame, centre gripping groove, ball, activity unit and drive feedback Unit, the activity unit includes lens supporter, driven magnet and feedback magnet, drive feedback Unit includes hall element, drive coil and circuit board, form two centre gripping grooves between lens supporter and the frame, two centre gripping grooves are placed in the angular position, two centre gripping inslots are equipped with the ball, the circuit board is the integrated into one piece structure, and accessible draw -in groove embedding structure directly clamps to the frame on. The beneficial effects of the utility model are that: the utility model has the advantages of simple structure, the assembly is easy, removes small friction, and the displacement precision is high, and product quality is stable.

Description

A kind of closed loop AF auto-focusing lens driver
Technical field
This utility model relates to a kind of lens driver, particularly a kind of closed loop AF auto-focusing lens driver.
Background technology
In the magnetic field that voice coil motor is a kind of utilization to be produced from the magnetic field of permanent-magnet steel and hot-wire coil conductor between magnetic pole Interact produce regular motion device, be widely used in mobile phone camera.Existing domestic and international minisize pick-up head institute The similar scheme disclosed in lens driver many employings China Patent Publication No. CN1683946A used, this lens drive Device has two shell fragments, because of the oscillating characteristic that spring is intrinsic during movement, after needing certain stabilization time Can stop on a fixing position, response time is long, and due to the relation of shell fragment, the precision of displacement is the most poor;And it is this Driving device structure is complicated, and parts are more, assembling complexity, easily causes unstable product quality.
Utility model content
The purpose of this utility model is that and overcomes above-mentioned deficiency, it is provided that a kind of simple in construction, it is easy to assembling, has volume production The closed loop AF auto-focusing lens driver of property.
For reaching above-mentioned purpose, this utility model is implemented according to techniques below scheme:
A kind of closed loop AF auto-focusing lens driver, anti-including framework, holding tank, ball, active unit and driving Feedback unit, described active unit includes that lens supports body, drive magnet and feedback Magnet, described drive feedback unit include Hall Element, driving coil and wiring board, described lens supports body is placed in lower portion, described drive magnet and feedback Magnet and puts respectively On the diverse location of the right flank being placed in lens supports body, described wiring board is placed in the right side of lower portion, in described wiring board Side is relative with lens supports body right flank, and described driving coil and Hall element are respectively placed in the diverse location inside wiring board, The position of described driving coil is corresponding with drive magnet, and the position of described Hall element is corresponding with feedback Magnet, described Two holding tanks, the respectively first holding tank and the second holding tank, described first holding tank is formed between mirror supporter and framework Parallel with optical axis direction with the second holding tank, described second holding tank between drive magnet and feedback Magnet, described the One holding tank is positioned at the diagonal position of the second holding tank, and described first holding tank and the second holding tank are built with ball.
Further, described framework is provided with groove structure, and described wiring board is provided with raised structures, and described wiring board can It is installed on framework by raised structures and groove structure.
Further, described wiring board includes that flexible circuit board body and plastic support, described wiring board are integrated into Type structure.
Compared with prior art, the beneficial effects of the utility model are: two set holding tanks, can built with ball So that lens supports body moves along the direction being parallel to optical axis, compared with spring, ball-type mobile member is used to drop Low-frictional force, and ensure displacement accuracy;Two holding tanks are placed in diagonal position, and this optimization design can make full use of space, Bigger space is reserved for drive magnet;By the design more optimized, the most complicated original mechanism's design elements quantity is simplified To 8;Drive feedback unit have employed wiring board and plastic support integral forming process, it is to avoid follow-up assemble laminating again, Simplify design of part, wiring board and framework directly to be snapped into by draw-in groove embedded structure, reduce assembling difficulty so that assembling It is more prone to, it is ensured that the precision of product and the stability of product quality, concordance.Simple in construction of the present utility model, assembling Easily, mobile frictional force is little, and displacement accuracy is high, constant product quality.
Accompanying drawing explanation
Fig. 1 is top view of the present utility model;
Fig. 2 is frame structure schematic diagram of the present utility model;
Fig. 3 is the structural representation of active unit of the present utility model;
Fig. 4 is the structural representation of drive feedback unit of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawings and this utility model is further described by specific embodiment, in the signal of this utility model Property embodiment and explanation be used for explaining this utility model, but be not intended as restriction of the present utility model.
A kind of closed loop AF auto-focusing lens driver as Figure 1-4, including framework 1, holding tank, ball, work Moving cell and drive feedback unit, described active unit include lens supports body 2, drive magnet 4 and feedback Magnet 5, described in drive Dynamic feedback unit includes Hall element 6, drives coil 7 and wiring board 8, and it is internal that described lens supports body 2 is placed in framework 1, described On the diverse location of the right flank that drive magnet 4 and feedback Magnet 5 are respectively placed in lens supports body 2, described wiring board 8 is placed in Right side within framework 1, relative with lens supports body 2 right flank inside described wiring board 8, described driving coil 7 and Hall unit Part 6 is respectively placed in the diverse location inside wiring board 8, and the position of described driving coil 7 is corresponding with drive magnet 4, described suddenly The position of your element 6 is corresponding with feedback Magnet 5, forms two holding tanks, respectively between described lens supports body 2 and framework 1 Being the first holding tank 3 and the second holding tank 9, described first holding tank 3 and the second holding tank 9 are paralleled with optical axis direction, described Second holding tank 9 is between drive magnet 4 and feedback Magnet 5, and described first holding tank 3 is positioned at the diagonal angle of the second holding tank 9 Position, described first holding tank 3 and the second holding tank 9 are built with ball, and described framework 1 is provided with groove structure 11, described line Road plate 8 is provided with raised structures 10, and described raised structures 10 is embedded in groove structure 11, and therefore wiring board 8 blocks with framework 1 Tightly, described wiring board 8 includes that flexible circuit board body and plastic support, described wiring board 8 are formed in one structure.
Two holding tanks set by this utility model, built with ball, can make lens supports body 2 along being parallel to optical axis Direction move, compared with spring, use ball-type mobile member can reduce frictional force, and ensure displacement accuracy;Will Two holding tanks are placed in diagonal position, and this optimization design can make full use of space, reserves bigger space for drive magnet 4; By the design more optimized, the most complicated original mechanism's design elements quantity is simplified to 8;Drive feedback unit have employed line Road plate and plastic support integral forming process, it is to avoid follow-up assemble laminating again, simplify design of part, wiring board and framework Directly snapped into by draw-in groove embedded structure, reduce assembling difficulty so that assembling be more prone to, it is ensured that the precision of product and The stability of product quality, concordance.Simple in construction of the present utility model, easily, mobile frictional force is little, displacement accuracy in assembling Height, constant product quality.
The technical solution of the utility model is not limited to the restriction of above-mentioned specific embodiment, every according to skill of the present utility model The technology deformation that art scheme is made, within each falling within protection domain of the present utility model.

Claims (3)

1. a closed loop AF auto-focusing lens driver, it is characterised in that: include framework, holding tank, ball, active unit With drive feedback unit, described active unit includes lens supports body, drive magnet and feedback Magnet, described drive feedback unit Including Hall element, driving coil and wiring board, described lens supports body is placed in lower portion, described drive magnet and feedback magnetic On the diverse location of the right flank that ferrum is respectively placed in lens supports body, described wiring board is placed in the right side of lower portion, described line Inside the plate of road relative with lens supports body right flank, described driving coil and Hall element are respectively placed in the difference inside wiring board On position, the position of described driving coil is corresponding with drive magnet, and the position of described Hall element is corresponding with feedback Magnet, Two holding tanks of formation between described lens supports body and framework, the respectively first holding tank and the second holding tank, described first Holding tank and the second holding tank are paralleled with optical axis direction, and described second holding tank is at drive magnet and feeds back between Magnet, Described first holding tank is positioned at the diagonal position of the second holding tank, and described first holding tank and the second holding tank are built with ball.
A kind of closed loop AF auto-focusing lens driver the most according to claim 1, it is characterised in that: described framework sets Being equipped with groove structure, described wiring board is provided with raised structures, and described wiring board can be filled by raised structures and groove structure card On framework.
A kind of closed loop AF auto-focusing lens driver the most according to claim 1, it is characterised in that: described wiring board Including flexible circuit board body and plastic support, described wiring board is formed in one structure.
CN201620158885.2U 2016-02-24 2016-02-24 Closed loop AF auto focus lens drive arrangement Active CN205880329U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620158885.2U CN205880329U (en) 2016-02-24 2016-02-24 Closed loop AF auto focus lens drive arrangement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620158885.2U CN205880329U (en) 2016-02-24 2016-02-24 Closed loop AF auto focus lens drive arrangement

Publications (1)

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CN205880329U true CN205880329U (en) 2017-01-11

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105589169A (en) * 2016-02-24 2016-05-18 闫敏 Closed-loop AF automatic focusing lens driving device
CN108508567A (en) * 2017-02-24 2018-09-07 迈科威特株式会社 Auto-focusing regulating device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105589169A (en) * 2016-02-24 2016-05-18 闫敏 Closed-loop AF automatic focusing lens driving device
CN108508567A (en) * 2017-02-24 2018-09-07 迈科威特株式会社 Auto-focusing regulating device

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Legal Events

Date Code Title Description
GR01 Patent grant
CB03 Change of inventor or designer information

Inventor after: Peng Kun

Inventor before: Yan Min

CB03 Change of inventor or designer information
TR01 Transfer of patent right

Effective date of registration: 20171115

Address after: 454750 Henan city of Jiaozuo province Mengzhou City West Guo High-tech Zone in the courtyard

Patentee after: HENAN HAOZE ELECTRONICS CO., LTD.

Address before: 454700 Henan city of Jiaozuo province Mengzhou City West Guo compound High-tech Zone in Henan Province, Hao Ze Electronics Co. Ltd.

Patentee before: Yan Min

TR01 Transfer of patent right
CP01 Change in the name or title of a patent holder

Address after: 454750 Henan city of Jiaozuo province Mengzhou City West Guo High-tech Zone in the courtyard

Patentee after: Henan haoze Electronic Co., Ltd

Address before: 454750 Henan city of Jiaozuo province Mengzhou City West Guo High-tech Zone in the courtyard

Patentee before: HENAN HAOZE ELECTRONICS Co.,Ltd.

CP01 Change in the name or title of a patent holder