CN112987227B - Driving device, camera module and electronic equipment - Google Patents
Driving device, camera module and electronic equipment Download PDFInfo
- Publication number
- CN112987227B CN112987227B CN202110299841.7A CN202110299841A CN112987227B CN 112987227 B CN112987227 B CN 112987227B CN 202110299841 A CN202110299841 A CN 202110299841A CN 112987227 B CN112987227 B CN 112987227B
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- China
- Prior art keywords
- limiting unit
- inner ring
- limiting
- ring connecting
- carrier
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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
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- 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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
- Studio Devices (AREA)
Abstract
The invention discloses a driving device, a camera module and an electronic device, wherein the driving device comprises: a carrier comprising a carrier body; the elastic sheet comprises an inner ring connecting part, and the inner ring connecting part is connected with the carrier body; the carrier body is provided with a first limiting unit and a second limiting unit which are distributed at intervals, the inner ring connecting portion is clamped between the first limiting unit and the second limiting unit, and the first limiting unit and the second limiting unit can limit the forward rotation and the reverse rotation of the inner ring connecting portion respectively. The invention realizes the limit control on the rotation of the elastic sheet and improves the reset position precision of the elastic sheet. And, establish the inner circle connecting portion card between first spacing unit and the second spacing unit of interval distribution, its installation effectiveness and the mounted position precision that can improve the shell fragment. Meanwhile, the invention also has the advantages of simple structure, convenient use, low cost and the like.
Description
Technical Field
The invention relates to the technical field of micro motors, in particular to a driving device, a camera module and electronic equipment.
Background
The camera is often arranged in the existing electronic equipment such as a camera, a smart phone and a smart watch, and mainly comprises a driving device and a lens, wherein the driving device is in driving connection with the lens to drive the lens to realize automatic focusing. The related driving device mainly comprises a shell, a base, a carrier, an upper elastic sheet, a lower elastic sheet, a magnet, a coil and other structures, wherein when the coil is electrified, the carrier can move along the optical axis direction of the lens to drive the lens to realize automatic focusing.
Among the prior art, when drive arrangement moved, the shell fragment can produce corresponding deformation, and at the in-process that warp, the shell fragment also takes place rotatoryly thereupon, if do not carry out limit control to the rotation of shell fragment, long-time the back of using, the reset position precision of shell fragment will receive very big influence to cause the influence to the quality of product.
Disclosure of Invention
In view of the above, it is desirable to provide a driving device, an image pickup module and an electronic apparatus having a simple structure and capable of preventing rotation of the elastic piece.
A drive device, comprising:
a carrier comprising a carrier body;
the elastic sheet comprises an inner ring connecting part, and the inner ring connecting part is connected with the carrier body;
the carrier body is provided with a first limiting unit and a second limiting unit which are distributed at intervals, the inner ring connecting portion is clamped between the first limiting unit and the second limiting unit, and the first limiting unit and the second limiting unit can limit forward rotation and reverse rotation of the inner ring connecting portion respectively.
In one embodiment, the inner ring connecting part comprises a fixed connecting body and a movable connecting body, the fixed connecting body is fixedly connected with the carrier body, the movable connecting body is connected with the fixed connecting body, and the movable connecting body is clamped between the first limiting unit and the second limiting unit.
In one embodiment, the first limiting unit and the second limiting unit respectively include a first limiting protrusion and a second limiting protrusion, a first notch and a second notch are respectively disposed on two sides of the movable connecting body, the first limiting protrusion abuts against the first notch when the inner ring connecting portion rotates in a forward direction, and the second limiting protrusion abuts against the second notch when the inner ring connecting portion rotates in a reverse direction.
In one embodiment, the first limiting protrusion is provided with a first arc surface, the first notch is provided with a second arc surface, and when the inner ring connecting part rotates in the forward direction, the first arc surface is abutted to the second arc surface.
In one embodiment, the carrier body is further provided with a glue dispensing groove, the fixed connecting body is arranged on the glue dispensing groove, and the fixed connecting body is connected with the carrier body through glue.
In one embodiment, the carrier body is further provided with an avoiding hole, and the avoiding hole is located in the inner center of the carrier body.
In one embodiment, an extension bulge is arranged on one side of the first limiting bulge, and the extension bulge is arranged above the side wall, close to the avoidance hole, of the dispensing groove.
In one embodiment, the length of the extension protrusion is matched with that of the glue dispensing groove, and the height of the extension protrusion is greater than that of the fixed connecting body.
A camera module comprises the driving device.
An electronic device comprises the camera module.
In the driving device, the camera module and the electronic equipment, when the elastic sheet deforms and rotates relative to the carrier body, the inner ring connecting part of the elastic sheet can be in contact with the first limiting unit or the second limiting unit, and the inner ring connecting part is prevented from continuously rotating through the first limiting unit or the second limiting unit, so that the limiting control is realized on the rotation of the elastic sheet, and the reset position precision of the elastic sheet is improved. And, establish the inner circle connecting portion card between first spacing unit and the second spacing unit of interval distribution, its installation effectiveness and the mounted position precision that can improve the shell fragment. Meanwhile, the invention also has the advantages of simple structure, convenient use, low cost and the like.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of the construction of the driving apparatus of the present invention;
FIG. 2 is a schematic view of the connection structure of the spring and the carrier of the driving device of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a schematic structural diagram of a spring plate of the driving device of the present invention;
FIG. 5 is a schematic view of the structure of the carrier of the drive of the present invention;
FIG. 6 is a schematic view of a camera module according to the present invention;
fig. 7 is a schematic structural diagram of the electronic device of the present invention.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The first embodiment is as follows:
referring to fig. 1, fig. 2 and fig. 3, fig. 1 is a schematic structural diagram of a driving device according to the present invention; FIG. 2 is a schematic view of a connection structure between the spring plate and the carrier of the driving device of the present invention; fig. 3 is a partial enlarged view of fig. 2 at a. An embodiment of the invention provides a driving device 10, which includes a carrier 101 and a spring plate 102. The carrier 101 comprises a carrier body 1011; the elastic sheet 102 comprises an inner ring connecting part 1021, and the inner ring connecting part 1021 is connected with the carrier body 1011; the carrier body 1011 is provided with a first limiting unit 1012 and a second limiting unit 1013, the first limiting unit 1012 and the second limiting unit 1013 are distributed at intervals, the inner ring connecting part 1021 is clamped between the first limiting unit 1012 and the second limiting unit 1013, and the first limiting unit 1012 and the second limiting unit 1013 can limit the forward rotation and the reverse rotation of the inner ring connecting part 1021 respectively. In this embodiment, the forward and reverse rotations of the inner ring connecting part 1021 are for convenience of distinction and definition, as follows: the forward rotation of the inner ring connecting part 1021 can be understood as clockwise rotation, and the reverse rotation is anticlockwise rotation; alternatively, the forward rotation of the inner ring connecting part 1021 may be understood as a counterclockwise rotation, and the reverse rotation may be a clockwise rotation.
Specifically, the driving device 10 may further include a housing 103, a base 104, a coil, a magnet, and the like. The housing 103 is covered on the base 104 and encloses with the base 104 to form an installation cavity, the coil and the magnet are installed in the installation cavity and located on the periphery of the carrier 101, the coil is electrically connected with an external power supply, in actual use, a structure (such as a lens component) to be driven is connected with the carrier 101, at the moment, the coil is electrified, and the carrier 101 can move in the installation cavity, so that the lens component and other structures can be driven to move.
Further, the elastic sheet 102 further includes an outer ring connecting portion and an elastic arm, the outer ring connecting portion is connected to the inner ring connecting portion 1021 via the elastic arm, and the outer ring connecting portion is further connected to the housing or the frame body. When the coil is energized and the carrier 101 moves in the mounting cavity, the inner ring connecting part 1021 moves along with the carrier 101, and the outer ring connecting part is fixed with the shell or the frame body. When the coil is de-energized, the carrier 101 will return to its original position under the elastic force of the elastic arm.
In the above driving device, when the elastic sheet 102 deforms and rotates relative to the carrier body 1011, the inner ring connecting portion 1021 of the elastic sheet 102 can contact with the first limiting unit 1012 or the second limiting unit 1013, and the first limiting unit 1012 or the second limiting unit 1013 prevents the inner ring connecting portion 1021 from continuing to rotate, so that the rotation of the elastic sheet 102 is limited and controlled, and the reset position accuracy of the elastic sheet 102 is improved. Furthermore, the inner ring connecting part 1021 is clamped between the first limiting unit 1012 and the second limiting unit 1013 which are distributed at intervals, so that the installation efficiency and the installation position accuracy of the elastic sheet 102 can be improved. Meanwhile, the invention also has the advantages of simple structure, convenient use, low cost and the like.
Referring to fig. 4 and 5, fig. 4 is a schematic structural diagram of a spring plate of the driving device of the present invention; fig. 5 is a schematic view of the structure of the carrier of the driving apparatus of the present invention. In an embodiment of the present invention, the inner ring connecting portion 1021 includes the fixed connecting body 10211 and the movable connecting body 10212, the fixed connecting body 10211 is fixedly connected to the carrier body 1011, the movable connecting body 10212 is connected to the fixed connecting body 10211, and the movable connecting body 10212 is clamped between the first position-limiting unit 1012 and the second position-limiting unit 1013. In this embodiment, the movable connection unit 10212 is generally connected to a spring arm, and when the coil is energized and the carrier 101 moves in the mounting cavity, the spring arm deforms, thereby causing the movable connection unit 10212 to deform and rotate. And the movable connection body 10212 is positioned between the first and second stopper units 1012 and 1013, the rotation of the movable connection body 10212 can be restricted by the first and second stopper units 1012 and 1013.
In an embodiment of the present invention, the first position-limiting unit 1012 and the second position-limiting unit 1013 respectively include a first position-limiting protrusion 10121 and a second position-limiting protrusion 10131, two sides of the movable connecting body 10212 are respectively provided with a first notch 10213 and a second notch 10214, when the inner ring connecting part 1021 rotates in a forward direction, the first position-limiting protrusion 10121 abuts against the first notch 10213, and when the inner ring connecting part 1021 rotates in a reverse direction, the second position-limiting protrusion 10131 abuts against the second notch 10214.
It should be noted that the first limiting protrusion 10121 may be in a V shape, a wave shape, a tooth shape, or the like, and the first notch 10213 is correspondingly matched with the first limiting protrusion 10121, so that a contact area between the first limiting protrusion 10121 and the first notch 10213 may be increased, and a buffering effect may be exerted on rotation of the movable connection unit 10212.
Referring to fig. 4 and 5, the first limiting protrusion 10121 has a first arc surface 10122 thereon, the first notch 10213 has a second arc surface 10215 thereon, and when the inner ring connecting part 1021 rotates in the forward direction, the first arc surface 10122 abuts against the second arc surface 10215. Therefore, through the interaction between the first cambered surface 10122 and the second cambered surface 10215, the impact of the first limiting protrusion 10121 and the first notch 10213 can be reduced, and the stability of the first limiting protrusion 10121 during limiting is improved.
In an embodiment of the present invention, the carrier body 1011 is further provided with a dispensing slot 1014, the fixed connector 10211 is disposed on the dispensing slot 1014, and the fixed connector 10211 is connected to the carrier body 1011 through glue. Specifically, the glue in the glue dispensing slot 1014 can form a glue column, so as to improve the connection strength between the fixed connection body 10211 and the carrier body 1011.
Optionally, the carrier body 1011 is further provided with an avoiding hole 1015, and the avoiding hole 1015 is located at the inner center of the carrier body 1011. When a structure to be driven (e.g., a lens assembly) is connected to the carrier body 1011, the avoiding hole 1015 can avoid the structure to be driven. In some embodiments, the relief hole 1015 may be disposed at an inner eccentric location of the carrier body 1011.
Referring to fig. 5 again, in an embodiment of the invention, an extension protrusion 10123 is disposed on one side of the first limiting protrusion 10121, and the extension protrusion 10123 is disposed above a side wall of the dispensing slot 1014 close to the avoiding hole 1015. With such an arrangement, after glue is stored in the glue dispensing groove 1014, the extending protrusion 10123 can prevent the glue from overflowing, so as to prevent the glue from polluting structures (such as a lens assembly) which need to be driven in the avoiding hole 1015.
Optionally, in order to improve the effect of blocking the overflow of the glue, the length of the extension protrusion 10123 is matched with the length of the glue dispensing slot 1014, and the height of the extension protrusion 10123 is greater than the height of the fixed connection body 10211.
The second embodiment:
referring to fig. 6, fig. 6 is a schematic structural diagram of a camera module according to the present invention. An embodiment of the invention provides a camera module 20, which includes the driving device 10. Specifically, the camera module 20 includes a driving device 10 and a lens assembly 30, where the driving device 10 is connected to the lens assembly 30, and when the driving device 10 is connected to the lens assembly 30, the lens assembly 30 is connected to a carrier 101 of the driving device 10, and when a coil of the driving device 10 is energized, the carrier 101 can move along an optical axis direction of the lens assembly 30, so as to drive the lens assembly 30 to implement auto-focusing.
Example three:
referring to fig. 7, fig. 7 is a schematic structural diagram of an electronic device according to the present invention. An embodiment of the invention provides an electronic device, which includes the camera module 20. Specifically, the electronic device 40 may be a mobile phone, a tablet computer, a telephone watch, a security camera, an in-vehicle camera, and the like, and includes a camera module 20 and a housing 401, where the camera module 20 is disposed on the housing 401.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-described examples merely represent several embodiments of the present application and are not to be construed as limiting the scope of the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (4)
1. A drive device, comprising:
a carrier comprising a carrier body; and
the elastic sheet comprises an inner ring connecting part, and the inner ring connecting part is connected with the carrier body;
the carrier body is provided with a first limiting unit and a second limiting unit which are distributed at intervals, the inner ring connecting part is clamped between the first limiting unit and the second limiting unit, and the first limiting unit and the second limiting unit can limit the forward rotation and the reverse rotation of the inner ring connecting part respectively;
the inner ring connecting part comprises a fixed connecting body and a movable connecting body, the fixed connecting body is fixedly connected with the carrier body, the movable connecting body is connected with the fixed connecting body, and the movable connecting body is clamped between the first limiting unit and the second limiting unit;
the first limiting unit and the second limiting unit respectively comprise a first limiting bulge and a second limiting bulge, a first notch and a second notch are respectively arranged on two sides of the movable connecting body, the first limiting bulge is abutted with the first notch when the inner ring connecting part rotates along the forward direction, and the second limiting bulge is abutted with the second notch when the inner ring connecting part rotates along the reverse direction;
the carrier body is also provided with a glue dispensing groove, the fixed connecting body is arranged on the glue dispensing groove, and the fixed connecting body is connected with the carrier body through glue;
the carrier body is also provided with an avoidance hole, and the avoidance hole is positioned in the center of the interior of the carrier body;
an extension bulge is arranged on one side of the first limiting bulge and is arranged above the side wall, close to the avoidance hole, of the dispensing slot;
the length of the extension bulge is matched with that of the glue dispensing groove, and the height of the extension bulge is larger than that of the fixed connecting body.
2. The driving apparatus as claimed in claim 1, wherein said first limiting protrusion has a first arc surface thereon, said first notch has a second arc surface thereon, and when said inner ring connecting portion rotates in a forward direction, said first arc surface abuts against said second arc surface.
3. A camera module, characterized in that it comprises a drive device according to claim 1 or 2.
4. An electronic apparatus characterized by comprising the camera module according to claim 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110299841.7A CN112987227B (en) | 2021-03-22 | 2021-03-22 | Driving device, camera module and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110299841.7A CN112987227B (en) | 2021-03-22 | 2021-03-22 | Driving device, camera module and electronic equipment |
Publications (2)
| Publication Number | Publication Date |
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| CN112987227A CN112987227A (en) | 2021-06-18 |
| CN112987227B true CN112987227B (en) | 2023-04-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110299841.7A Active CN112987227B (en) | 2021-03-22 | 2021-03-22 | Driving device, camera module and electronic equipment |
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| CN (1) | CN112987227B (en) |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4654359B2 (en) * | 2005-03-31 | 2011-03-16 | シコー株式会社 | Manufacturing method of lens driving device |
| JP2007316395A (en) * | 2006-05-26 | 2007-12-06 | Shicoh Eng Co Ltd | Lens drive device |
| CN201107452Y (en) * | 2007-12-03 | 2008-08-27 | 亚洲光学股份有限公司 | Lens groups |
| CN101752975A (en) * | 2008-11-27 | 2010-06-23 | 鸿富锦精密工业（深圳）有限公司 | Voice coil motor |
| CN104218766A (en) * | 2013-05-31 | 2014-12-17 | 鸿富锦精密工业（深圳）有限公司 | Voice coil motor and lens module |
| CN104749858A (en) * | 2015-03-12 | 2015-07-01 | 南昌欧菲光电技术有限公司 | Bracket for camera die set and camera die set |
| CN205720835U (en) * | 2016-03-23 | 2016-11-23 | 宁波金诚泰电子有限公司 | A kind of optical anti-vibration voice coil motor |
| CN205787314U (en) * | 2016-05-18 | 2016-12-07 | 宁波金诚泰电子有限公司 | A kind of closed loop voice coil motor |
| CN205812191U (en) * | 2016-07-18 | 2016-12-14 | 信利光电股份有限公司 | A kind of camera lens carrier, voice coil motor and photographic head module |
| KR101724660B1 (en) * | 2016-09-30 | 2017-04-10 | 엘지이노텍 주식회사 | Voice coil motor, camera module and optical apparatus |
| WO2018198259A1 (en) * | 2017-04-26 | 2018-11-01 | 株式会社ニコン | Lens barrel, camera body, camera system |
| CN211180361U (en) * | 2019-12-23 | 2020-08-04 | 南阳兆强精密光电有限公司 | Zoom projection lens adjusting device |
| CN111273502A (en) * | 2020-03-25 | 2020-06-12 | 新思考电机有限公司 | Lens driving device, camera module and electronic equipment |
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2021
- 2021-03-22 CN CN202110299841.7A patent/CN112987227B/en active Active
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