CN210222340U - Sliding contact power supply structure of automatic zoom lens of annular voice coil motor - Google Patents
Sliding contact power supply structure of automatic zoom lens of annular voice coil motor Download PDFInfo
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- CN210222340U CN210222340U CN201921355282.1U CN201921355282U CN210222340U CN 210222340 U CN210222340 U CN 210222340U CN 201921355282 U CN201921355282 U CN 201921355282U CN 210222340 U CN210222340 U CN 210222340U
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Abstract
A sliding contact power supply structure of an automatic zoom lens with an annular voice coil motor comprises: the lens comprises a lens front group, a lens zooming group, a lens barrel middle frame, a lens focusing group and a lens barrel tail frame, wherein: the lens zooming group is movably arranged in the lens cone middle frame, two ends of the lens cone middle frame are respectively connected with the lens front group and the lens cone tail frame, and the lens focusing group is movably arranged in the lens cone tail frame; the lens barrel middle frame comprises: the device comprises a middle frame, a first annular magnet, an annular FPC, a zooming guide shaft and a focusing guide shaft; the lens zoom group includes: the first annular conductive coil, the first sliding contact piece, the first position magnetic strip and the first leaning frame; the lens focusing group includes: the second annular conductive coil, the second sliding contact piece, the second position magnetic strip and the second bearing frame. The utility model discloses a guide shaft, sliding contact piece, lead coil and copper cap form closed circuit, and the FPC power supply makes the lead coil move in annular magnet, realizes zooming, the focus function of camera lens, and simple structure has avoided having produced the miscellaneous light, has prolonged FPC's life.
Description
Technical Field
The utility model relates to a technique in field specifically is a sliding contact power supply structure of annular voice coil motor automatic zoom lens.
Background
The focus-changing driving structure of Voice Coil motor (Voice Coil Actuator) in the existing optical zoom lens usually adopts one or more sets of symmetrical magnets fixed on the inner wall of the lens barrel, and the corresponding driving coils are fixed on the moving component. This kind of mode sets up magnet inconvenient to the coil circular telegram is inconvenient, and the power supply mode that the camera lens of applying this VCM drive mode on the market gave the coil is the power supply of dragging flexible circuit (FPC), also can drag FPC motion in the camera lens when motion assembly moved, and the easy ageing fracture of long-term reciprocal FPC line, and easy and camera lens mechanism card is dead when FPC unsettled motion, also can produce ghost veiling to the camera lens formation of image simultaneously.
SUMMERY OF THE UTILITY MODEL
The utility model discloses it is not enough to the above-mentioned that prior art exists, provide an annular voice coil motor automatic zoom's wiping power supply structure, form closed loop through guide shaft, wiping piece, lead coil and copper cap, the FPC power supply makes the lead coil move in annular magnet to realize zooming, the focus function of camera lens, simple structure can not contact with the camera lens, avoids producing the parasitic light, and has prolonged FPC's life.
The utility model discloses a realize through following technical scheme:
the utility model discloses a: the lens comprises a lens front group, a lens zooming group, a lens barrel middle frame, a lens focusing group and a lens barrel tail frame, wherein: the lens zooming group is movably arranged in the lens cone middle frame, two ends of the lens cone middle frame are respectively connected with the lens front group and the lens cone tail frame, and the lens focusing group is movably arranged in the lens cone tail frame.
The lens zoom group comprises: first annular conductor circle, first sliding contact piece, first position magnetic stripe and first frame of holding by, wherein: the first annular lead ring is arranged on one side, close to the front group of the lens, of the lens cone middle frame, the first sliding contact piece is arranged on the first annular lead ring and is connected with the lens cone middle frame, the first position magnetic stripe is arranged on the first bearing frame, and the first bearing frame 7 is arranged on the first annular lead ring.
The lens barrel middle frame comprises: center, first ring magnet, annular FPC, zoom guide shaft and focus guide shaft, wherein: the first annular magnet is arranged in the middle frame, the zooming guide shafts are symmetrically arranged in the annular FPC and connected with the lens zooming group, and the focusing guide shafts are symmetrically arranged in the annular FPC and connected with the lens focusing guide shafts.
The middle frame is provided with a first magnetic shielding piece.
The middle frame is provided with a zoom PI sensor for detecting the initial position of a lens zoom group and a focus PI sensor for detecting the initial position of a lens focus group.
And the annular FPC is provided with a zooming connecting cap matched with the zooming guide shaft.
And the annular FPC is provided with a focusing connecting cap matched with the focusing guide shaft.
The lens focusing group comprises: second annular conductor circle, second sliding contact piece, second position magnetic stripe and second bear the frame, wherein: the second annular lead ring is arranged in the lens cone tail frame, the second sliding contact piece is arranged on the second annular lead ring and is connected with the lens cone middle frame, the second position magnetic stripe is arranged on the second bearing frame, and the second bearing frame is arranged on the second annular lead ring.
The lens barrel tail frame includes: tail frame, second annular magnet and position sensor, wherein: the second annular magnet is arranged in the tail frame, the position sensors are symmetrically arranged on the inner wall of the tail frame, and the magnetic shielding pieces are arranged on the inner wall of the tail frame.
And a second magnetic shielding piece is arranged on the tail frame.
Technical effects
Compared with the prior art, the utility model discloses a guide shaft, sliding contact piece, lead coil and copper cap form closed circuit, and the FPC power supply makes the lead coil move in annular magnet to realize zooming, the focus function of camera lens, simple structure can not contact with the camera lens, avoids producing the miscellaneous light, and has prolonged FPC's life.
Drawings
Fig. 1 is a schematic diagram of the explosion structure of the present invention;
fig. 2 is a side view of the explosive structure of the present invention;
FIG. 3 is a schematic diagram of the explosion movement of the present invention;
FIG. 4 is a schematic view of the explosion structure of the lens barrel center and the lens focusing group according to the present invention;
in the figure: the lens comprises a lens front group 1, a lens zooming group 2, a lens barrel middle frame 3, a lens focusing group 4, a lens barrel tail frame 5, a first position magnetic strip 6, a first bearing frame 7, a first annular conductive coil 8, a zooming guide shaft 9, an annular FPC10, a middle frame 11, a first magnetic shielding piece 12, a second annular conductive coil 13, a focusing guide shaft 14, a first sliding contact piece 15, a position sensor 16, a focusing connection cap 17, a focusing PI sensor 18, a zooming connection cap 19, a first annular magnet 20, a second annular magnet 21, a second sliding contact piece 22, a zooming PI sensor 23, a tail frame 24, a second bearing frame 25, a second position magnetic strip 26, a second magnetic shielding piece 27, a screw 28, a soldering tin strip 29 and a through hole 30.
Detailed Description
As shown in fig. 1, a sliding contact power supply structure of an automatic zoom lens with an annular voice coil motor according to the present embodiment includes: a lens front group 1, a lens zoom group 2, a lens barrel middle frame 3, a lens focusing group 4 and a lens barrel end frame 5, wherein: the lens zoom group 2 is movably arranged in the lens cone middle frame 3, two ends of the lens cone middle frame 3 are respectively connected with the lens front group 1 and the lens cone tail frame 5, and the lens focus group 4 is movably arranged in the lens cone tail frame 5.
The lens zoom group 2 includes: first annular conductor circle 8, first sliding contact piece 15, first position magnetic stripe 6 and first cushion frame 7, wherein: the first annular lead coil 8 is arranged on one side, close to the lens front group 1, of the middle frame 11, the first sliding contact piece 15 is arranged on the first annular lead coil 8 and is connected with the zooming guide shaft 9, the first position magnetic strip 6 is arranged on the first bearing frame 7 along the moving direction of the zooming group, and the first bearing frame 7 is arranged on the first annular lead coil 8.
The first annular lead coil 8 is provided with a through hole for connecting with the first bearing frame 7.
The lens barrel middle frame 3 comprises: center 11, first ring magnet 21, annular FPC10 for power supply, zoom guide shaft 9 and focus guide shaft 14, wherein: the first annular magnet 21 is arranged in the middle frame 11, the zooming guide shaft 9 is symmetrically arranged in the annular FPC10 and is connected with the first sliding contact piece 15, and the focusing guide shaft 14 is symmetrically arranged in the annular FPC10 and is connected with the second sliding contact piece 22.
The middle frame 11 is provided with a first magnetic shield 12.
The middle frame is provided with a zoom PI sensor 23 for detecting the initial position of the lens zoom group 2 and a focus PI sensor 18 for detecting the initial position of the lens focus group 4.
The annular FPC10 on be equipped with zooming guide shaft 9 complex zoom and connect cap 19, wherein: the zoom connection cap 19 is connected to the annular FPC by a solder bar 29.
The annular FPC10 is provided with a focusing connecting cap 17 matched with the focusing guide shaft 14, wherein: the focus connection cap 17 is connected to the annular FPC by a solder bar 29.
The focus connecting cap 17 and the zoom connecting cap 19 are both copper caps.
The lens focusing group 4 comprises: the second annular conductive coil 13, the second sliding contact piece 22, the second position magnetic stripe 26 and the second leaning frame 25, wherein: the second annular conductive coil 13 is arranged in the tail frame 24, the second sliding contact piece 22 is arranged on the second annular conductive coil 13 and connected with the focusing guide shaft 14, the second position magnetic stripe 26 is arranged on the second bearing frame 25 along the movement direction of the zoom group, and the second bearing frame is arranged on the second annular conductive coil 13.
The second annular conductive coil 13 is provided with a through hole for connecting with the second bearing frame 25.
The lens barrel tail frame 5 includes: a tail frame 24, a second ring magnet 20, and a position sensor 16, wherein: the second ring magnet 20 is disposed in the tail frame 24, and the position sensors 16 are symmetrically disposed on the inner wall of the tail frame 24.
The tail frame 24 is provided with a second magnetic shield 27.
The working principle is as follows:
on the lens zooming group 2, the zooming connection cap 19, the zooming guide shaft 9, the first sliding contact piece 15 and the first annular conductive coil 8 form a closed loop, when the annular FPC10 provides a current in one direction for the first annular conductive coil 8, the first annular conductive coil 8 receives a magnetic force in a magnetic field formed by the first annular magnet 21, and the magnetic force drives the lens zooming group 2 to move in one direction along the zooming guide shaft 9, and when the annular FPC10 provides a current in the opposite direction for the first annular conductive coil 8, the lens zooming group 2 moves in the opposite direction along the zooming guide shaft 9, so as to realize the zooming function of the lens.
On the lens focusing group 4, the focusing connection cap 17, the focusing guide shaft 14, the second sliding contact piece 22 and the second annular conductive coil 13 form a closed loop, when the annular FPC10 provides a directional current for the second annular conductive coil 13, the second annular conductive coil 13 receives a magnetic force in a magnetic field formed by the second annular magnet 20 to drive the lens focusing group 4 to move in one direction along the focusing guide shaft 14, and when the annular FPC10 provides a reverse directional current for the second annular conductive coil 13, the lens focusing group 4 moves in the reverse direction along the focusing guide shaft 14, so as to realize the focusing function of the lens.
The foregoing embodiments may be modified in various ways by those skilled in the art without departing from the spirit and scope of the present invention, which is not limited by the above embodiments but is to be accorded the full scope defined by the appended claims, and all such modifications and variations are within the scope of the invention.
Claims (9)
1. The utility model provides an annular voice coil motor automatic zoom's wiping power supply structure which characterized in that includes: the lens comprises a lens front group, a lens zooming group, a lens barrel middle frame, a lens focusing group and a lens barrel tail frame, wherein: the lens zooming group is movably arranged in the lens cone middle frame, two ends of the lens cone middle frame are respectively connected with the lens front group and the lens cone tail frame, and the lens focusing group is movably arranged in the lens cone tail frame;
the lens barrel middle frame comprises: center, first ring magnet, annular FPC, zoom guide shaft and focus guide shaft, wherein: the first annular magnet is arranged in the middle frame, the zooming guide shafts are symmetrically arranged in the annular FPC and connected with the lens zooming group, and the focusing guide shafts are symmetrically arranged in the annular FPC and connected with the lens focusing guide shafts.
2. The trolley power supply structure of claim 1, wherein said lens zoom group comprises: first annular conductor circle, first sliding contact piece, first position magnetic stripe and first frame of holding by, wherein: the first annular lead ring is arranged on one side, close to the front group of the lens, of the lens cone middle frame, the first sliding contact piece is arranged on the first annular lead ring and is connected with the lens cone middle frame, the first position magnetic stripe is arranged on the first bearing frame, and the first bearing frame (7) is arranged on the first annular lead ring.
3. The trolley power supply structure of claim 1 wherein said lens focusing group comprises: second annular conductor circle, second sliding contact piece, second position magnetic stripe and second bear the frame, wherein: the second annular lead ring is arranged in the lens cone tail frame, the second sliding contact piece is arranged on the second annular lead ring and is connected with the lens cone middle frame, the second position magnetic stripe is arranged on the second bearing frame, and the second bearing frame is arranged on the second annular lead ring.
4. The trolley power supply structure of claim 1 wherein said middle frame is provided with a first magnetic shield.
5. The trolley power supply structure as claimed in claim 1, wherein the middle frame is provided with a zoom PI sensor for detecting an initial position of a zoom group of the lens and a focus PI sensor for detecting an initial position of a focus group of the lens.
6. The trolley power supply structure of claim 1, wherein said annular FPC is provided with a zoom connection cap cooperating with the zoom guide shaft.
7. The trolley power supply structure of claim 1, wherein said annular FPC is provided with a focus connection cap fitted to the focus guide shaft.
8. The trolley power supply structure of claim 1, wherein said lens barrel tail frame comprises: tail frame, second annular magnet and position sensor, wherein: the second annular magnet is arranged in the tail frame, the position sensors are symmetrically arranged on the inner wall of the tail frame, and the magnetic shielding pieces are arranged on the inner wall of the tail frame.
9. The trolley power supply of claim 8 wherein said tail frame is provided with a second magnetic shield.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921355282.1U CN210222340U (en) | 2019-08-21 | 2019-08-21 | Sliding contact power supply structure of automatic zoom lens of annular voice coil motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921355282.1U CN210222340U (en) | 2019-08-21 | 2019-08-21 | Sliding contact power supply structure of automatic zoom lens of annular voice coil motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210222340U true CN210222340U (en) | 2020-03-31 |
Family
ID=69919809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921355282.1U Active CN210222340U (en) | 2019-08-21 | 2019-08-21 | Sliding contact power supply structure of automatic zoom lens of annular voice coil motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210222340U (en) |
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2019
- 2019-08-21 CN CN201921355282.1U patent/CN210222340U/en active Active
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Address after: 314000 No.188, Taojing Road, Gaozhao street, Xiuzhou District, Jiaxing City, Zhejiang Province Patentee after: Jiaxing Zhongrun Optical Technology Co.,Ltd. Address before: 314000 Room 2F201-6, Building 6, Jiaxing Photovoltaic Science Park, 1288 Kanghe Road, Xiuzhou District, Jiaxing City, Zhejiang Province Patentee before: JIAXING ZHONGRUN OPTICAL SCIENCE AND TECHNOLOGY Co.,Ltd. |