CN105785546A - Closed loop single camera automatic focusing driving device of novel dustproof structure - Google Patents
Closed loop single camera automatic focusing driving device of novel dustproof structure Download PDFInfo
- Publication number
- CN105785546A CN105785546A CN201610267055.8A CN201610267055A CN105785546A CN 105785546 A CN105785546 A CN 105785546A CN 201610267055 A CN201610267055 A CN 201610267055A CN 105785546 A CN105785546 A CN 105785546A
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- Prior art keywords
- skeleton
- closed loop
- driving device
- single camera
- chute
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
- G02B7/09—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted for automatic focusing or varying magnification
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B13/32—Means for focusing
- G03B13/34—Power focusing
- G03B13/36—Autofocus systems
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
- Studio Devices (AREA)
Abstract
The present invention discloses a closed loop single camera automatic focusing driving device of a novel dustproof structure. The closed loop single camera automatic focusing driving device of the novel dustproof structure comprises a shell, a skeleton, a lens supporting body, a driving magnet, a driving coil, a Hall induction magnet, a Hall sensor and a flexible circuit board. The beneficial effects of the present invention are that 1 by the cooperative structure of the shell and the skeleton, the internal elements are protected effectively, and the dust is prevented from entering; 2 dustproof ribs are arranged at the bottom of the skeleton, so that the bottom gaps after the shell and the skeleton are assembled can be shielded, and the dust is further prevented from entering the interior from the bottom; 3 the internal structure is reasonable, so that the dust is more effectively prevented from dropping on the surface of an image sensor directly, and the photograph quality of clients during the long-term shooting and usage process is guaranteed.
Description
Technical field
The present invention relates to a kind of closed loop single camera auto-focusing driving device, the particularly lens driver of a kind of closed loop voice coil motor with dustproof construction, for the photographic head of automatic focusing function.It is applied particularly to the equipment such as there is the mobile phone of camera function, photographing unit, video camera or detection sensor vision system, robotic vision system.
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, interacting between magnetic pole produces the device of regular motion, is widely used in mobile phone camera.Closed loop motor is a kind of auto-focusing voice coil motor with feedback signal, due to can through the feedback of signal, it is possible to knows the position at camera lens more accurately, is moved rearwards by forward thus processor can control camera lens more accurately；Due to the extensive use in high pixel of the closed loop product, bring some undiscovered problems in the past accordingly, the image sensor of high pixel product is smaller, therefore slight dust drops on sensor through the gap of driving device, the shadow of a very big black can be formed, causing photo after taking pictures the speckle of a black also occur, spot size is affected by the dust diameter dropped on image sensor；In the past due to product design structure problem, and it is not fully complete the design of dustproof construction, this product is in use caused a degree of harmful effect of quality of taking pictures.
Summary of the invention
In order to overcome drawbacks described above, the present invention provides a kind of structure, technique advantages of simple, has the closed loop single camera auto-focusing driving device of Dustproof structure.
To achieve these goals, the technical scheme is that the closed loop single camera auto-focusing driving device of a kind of Dustproof structure, including shell, skeleton, lens supports body, drive Magnetitum, driving coil, hall sensing Magnetitum, Hall element and flexible PCB；Described skeleton is open-topped cavity, one side of skeleton is installed surface, groove it is provided with in the middle part of installed surface, it is provided with through hole in groove to communicate with cavity, described lens supports body side surface is provided with a drive surface, described lens supports body is arranged in the cavity of skeleton, and drive surface is corresponding with installed surface；Described driving Magnetitum and hall sensing Magnetitum are fixed in drive surface and facing to through hole, described flexible PCB part is arranged in the groove of skeleton installed surface, and described Hall element is arranged on position corresponding with hall sensing Magnetitum inside flexible PCB；Described flexible PCB is " L " type of half-twist to the left, flexible PCB " L " type side deletion sites is provided with driving coil and drives coil corresponding with driving Magnetitum position with through hole overlapping position, being provided with circuit board stiffening plate outside described flexible PCB, described driving coil is fixed on circuit board stiffening plate；The side outer wall of described skeleton installed surface both sides is respectively equipped with triangle projection ear, shell is respectively equipped with on corresponding two sidewalls the square hole matched with triangle projection ear, shell is fastened on skeleton by triangle projection ear with coordinating of square hole, form snap fixing mode, simplify assembling process, it is to avoid glue technique for sticking.
Further, preferred as one, described circuit board stiffening plate is magnetic conductive metal sheet, the available magnetic conductive metal sheet magnetic force bed knife as lens supports body to driving Magnetitum.
Further, preferred as one, described skeleton is plastic skeleton.
Further, preferred as one, slided by ball set straight-line guidance between described skeleton and lens supports body.The external wall of lens supports is extended with two feeler structures, one vertical plane of described feeler structure is provided with the first chute, described feeler structure and skeleton interference position are provided with escape groove, in escape groove, the position corresponding with the first chute is provided with the second chute, being provided with ball in the cavity of the first chute and the second chute composition, the first chute, the second chute and ball constitute ball set.
Further, preferred as one, described skeleton cavity inner wall is provided with three vertical direction grooves, and described lens supports body is provided with the projection with fit depressions, forms the rotary position-limit mechanism on lens supports body.
Further, preferred as one, the sidewall of described skeleton is provided with the dust-proof rib of projection along bottom margin, and described dust-proof rib is provided with dodges at installed surface and two triangle projection ear places, is used for preventing dust from entering from bottom internal.
The invention has the beneficial effects as follows: 1, the fit structure of shell and skeleton, be effectively protected inner member, it is prevented that dust enters；2, it is provided with dust-proof rib bottom skeleton, it is possible to block the gap, bottom after shell combines with skeleton, prevents dust from entering from bottom further internal；3, reasonable in internal structure, more effective prevents dust from directly dropping on image sensor surface, has ensured that client takes pictures the photographic quality in process at life-time service.
Accompanying drawing explanation
Fig. 1 is the assembling explosive view of the present invention；
Fig. 2 is the top view of the present invention.
Fig. 3 is the assembling simplified schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described further.
As shown in Fig. 1 Fig. 2 Fig. 3, the closed loop single camera auto-focusing driving device of a kind of Dustproof structure, including shell 1, skeleton 2, lens supports body 3, drive Magnetitum 4, driving coil 5, hall sensing Magnetitum 6, Hall element 7 and flexible PCB 8；Described skeleton 2 is open-topped cavity 204, one side of skeleton is installed surface 201, groove 202 it is provided with in the middle part of installed surface 201, it is provided with through hole 203 in groove 202 to communicate with cavity 204, described lens supports body 3 side is provided with a drive surface 301, described lens supports body 3 is arranged in the cavity 204 of skeleton 2, and drive surface 301 is corresponding with installed surface 201；Described driving Magnetitum 4 and hall sensing Magnetitum 6 are fixed in drive surface 301 and facing to through hole 203, described flexible PCB 8 part is arranged in the groove 202 of skeleton installed surface, and described Hall element 7 is arranged on position corresponding with hall sensing Magnetitum 6 inside flexible PCB 8；Described " L " type that flexible PCB 8 is half-twist to the left, flexible PCB 8 " L " type side deletion sites is provided with driving coil 5 and drives coil 5 corresponding with driving Magnetitum 4 position with through hole 203 overlapping position, being provided with circuit board stiffening plate 9 outside described flexible PCB 8, described driving coil 5 is fixed on circuit board stiffening plate 9；The side outer wall of described skeleton installed surface 201 both sides is respectively equipped with triangle projection ear 205, shell 1 is respectively equipped with on corresponding two sidewalls the square hole 101 matched with triangle projection ear 205, shell 1 is fastened on skeleton 2 by triangle projection ear 205 with coordinating of square hole 101, form snap fixing mode, simplify assembling process, it is to avoid glue technique for sticking.
Circuit board stiffening plate 9 is magnetic conductive metal sheet, the available magnetic conductive metal sheet magnetic force bed knife as lens supports body to driving Magnetitum.Skeleton 2 is plastic skeleton.
Slided by ball set straight-line guidance between skeleton 2 and lens supports body 3.Lens supports body 3 outer wall is extended with two feeler structures 302, one vertical plane of described feeler structure 302 is provided with the first chute 303, described feeler structure 302 is provided with escape groove 206 with skeleton 2 interference position, in escape groove 206, the position corresponding with the first chute 303 is provided with the second chute 207, being provided with ball 10 in the cavity of the first chute 303 and the second chute 207 composition, first chute the 303, second chute 207 and ball 10 constitute ball set.
Skeleton cavity 204 inwall is provided with three vertical direction grooves 208, and described lens supports body 3 is provided with the projection 304 matched with vertical direction groove 208, forms the rotary position-limit mechanism on lens supports body 3.
The sidewall of skeleton 2 is provided with the dust-proof rib 209 of projection along bottom margin, and described dust-proof rib 209 is connected with dodging at installed surface 201 and two triangle projection ears 205, is used for preventing dust from entering from bottom internal.
Technical scheme is not limited to the restriction of above-mentioned specific embodiment, every technology deformation made according to technical scheme, each falls within protection scope of the present invention.
Claims (7)
1. the closed loop single camera auto-focusing driving device of a Dustproof structure, it is characterised in that: include shell, skeleton, lens supports body, drive Magnetitum, drive coil, hall sensing Magnetitum, Hall element and flexible PCB；Described skeleton is open-topped cavity, one side of skeleton is installed surface, groove it is provided with in the middle part of installed surface, it is provided with through hole in groove to communicate with cavity, described lens supports body side surface is provided with a drive surface, described lens supports body is arranged in the cavity of skeleton, and drive surface is corresponding with installed surface；Described driving Magnetitum and hall sensing Magnetitum are fixed in drive surface and facing to through hole, described flexible PCB part is arranged in the groove of skeleton installed surface, and described Hall element is arranged on position corresponding with hall sensing Magnetitum inside flexible PCB；Described flexible PCB is " L " type of half-twist to the left, flexible PCB " L " type side deletion sites is provided with driving coil and drives coil corresponding with driving Magnetitum position with through hole overlapping position, being provided with circuit board stiffening plate outside described flexible PCB, described driving coil is fixed on circuit board stiffening plate；Being respectively equipped with triangle projection ear on the side outer wall of described skeleton installed surface both sides, shell is respectively equipped with on corresponding two sidewalls the square hole matched with triangle projection ear, shell is fastened on skeleton with coordinating of square hole by triangle projection ear.
2. the closed loop single camera auto-focusing driving device of Dustproof structure according to claim 1, it is characterised in that: described circuit board stiffening plate is magnetic conductive metal sheet.
3. the closed loop single camera auto-focusing driving device of Dustproof structure according to claim 1, it is characterised in that: described skeleton is plastic skeleton.
4. the closed loop single camera auto-focusing driving device of Dustproof structure according to claim 1, it is characterised in that: slided by ball set straight-line guidance between described skeleton and lens supports body.
5. the closed loop single camera auto-focusing driving device of the Dustproof structure according to claim 1 or 4, it is characterized in that: the external wall of described lens supports is extended with two feeler structures, one vertical plane of described feeler structure is provided with the first chute, described feeler structure and skeleton interference position are provided with escape groove, in escape groove, the position corresponding with the first chute is provided with the second chute, being provided with ball in the cavity of the first chute and the second chute composition, the first chute, the second chute and ball constitute ball set.
6. the closed loop single camera auto-focusing driving device of Dustproof structure according to claim 1, it is characterized in that: described skeleton cavity inner wall is provided with three vertical direction grooves, and described lens supports body is provided with and the projection of vertical direction fit depressions.
7. the closed loop single camera auto-focusing driving device of Dustproof structure according to claim 1, it is characterized in that: the sidewall of described skeleton is provided with the dust-proof rib of projection along bottom margin, and described dust-proof rib is provided with dodges at installed surface and two triangle projection ear places.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610267055.8A CN105785546A (en) | 2016-04-27 | 2016-04-27 | Closed loop single camera automatic focusing driving device of novel dustproof structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610267055.8A CN105785546A (en) | 2016-04-27 | 2016-04-27 | Closed loop single camera automatic focusing driving device of novel dustproof structure |
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| CN105785546A true CN105785546A (en) | 2016-07-20 |
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| CN201610267055.8A Pending CN105785546A (en) | 2016-04-27 | 2016-04-27 | Closed loop single camera automatic focusing driving device of novel dustproof structure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106716242A (en) * | 2016-10-24 | 2017-05-24 | 江西森阳科技股份有限公司 | Camera module |
| CN107479165A (en) * | 2017-09-11 | 2017-12-15 | 重庆睿恩光电子有限责任公司 | Camera and its lens driving apparatus |
| CN107834898A (en) * | 2017-12-01 | 2018-03-23 | 河南省皓泽电子有限公司 | A kind of roll structure ultrasonic miniature motor |
| CN109643006A (en) * | 2016-09-02 | 2019-04-16 | 阿尔卑斯阿尔派株式会社 | Lens driver |
| WO2020243855A1 (en) * | 2019-06-01 | 2020-12-10 | 瑞声光学解决方案私人有限公司 | Lens assembly |
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| CN205005144U (en) * | 2015-10-09 | 2016-01-27 | 南昌欧菲光电技术有限公司 | Camera module |
| CN105449973A (en) * | 2015-12-30 | 2016-03-30 | 信利光电股份有限公司 | Voice coil motor |
| CN205720836U (en) * | 2016-04-27 | 2016-11-23 | 河南省皓泽电子有限公司 | A kind of closed loop single camera auto-focusing driving means of Dustproof structure |
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- 2016-04-27 CN CN201610267055.8A patent/CN105785546A/en active Pending
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109643006A (en) * | 2016-09-02 | 2019-04-16 | 阿尔卑斯阿尔派株式会社 | Lens driver |
| CN106716242A (en) * | 2016-10-24 | 2017-05-24 | 江西森阳科技股份有限公司 | Camera module |
| CN107479165A (en) * | 2017-09-11 | 2017-12-15 | 重庆睿恩光电子有限责任公司 | Camera and its lens driving apparatus |
| CN107834898A (en) * | 2017-12-01 | 2018-03-23 | 河南省皓泽电子有限公司 | A kind of roll structure ultrasonic miniature motor |
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| WO2020243855A1 (en) * | 2019-06-01 | 2020-12-10 | 瑞声光学解决方案私人有限公司 | Lens assembly |
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Application publication date: 20160720 |