CN209982312U - Automatic focusing voice coil motor of camera module - Google Patents
Automatic focusing voice coil motor of camera module Download PDFInfo
- Publication number
- CN209982312U CN209982312U CN201921106829.4U CN201921106829U CN209982312U CN 209982312 U CN209982312 U CN 209982312U CN 201921106829 U CN201921106829 U CN 201921106829U CN 209982312 U CN209982312 U CN 209982312U
- Authority
- CN
- China
- Prior art keywords
- base
- guide rail
- carrier
- voice coil
- coil motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000002184 metal Substances 0.000 claims abstract description 12
- 239000010935 stainless steel Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 238000003384 imaging method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
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Abstract
The utility model discloses a module auto focus voice coil motor makes a video recording, including the base and install at the inside magnetite carrier of base, but the magnetite carrier is as moving part perpendicular to base reciprocating motion, a serial communication port, the magnetite carrier with be provided with the smooth metal assembly in surface that can reduce frictional resistance between the base, metal assembly includes the guide rail axle and the slide guide piece of mutual contact, the slide guide piece can be followed the axial direction reciprocating sliding of guide rail axle. Through the guide rail shaft and the sliding guide sheet which are arranged, a sliding assembly of the magnet carrier on the base is formed, the base is in contact with the magnet carrier through a smooth metal surface, when the moving part moves, the contact area is reduced due to the linear contact form of the guide rail shaft and the sliding guide sheet, the friction resistance is reduced, the flexibility of the magnet carrier is enhanced, and the precision of the automatic focusing function lens can be effectively improved.
Description
Technical Field
The utility model relates to a linear drive arrangement field of camera module camera lens especially relates to a camera module auto focus voice coil motor.
Background
The development from a functional machine to an intelligent machine is in an epoch-crossing way, so that the camera module carried in the intelligent machine is also developed from a fixed focus function to an automatic focusing function. From the increasing popularity of high-Pixel camera modules such as 5 Mega Pixel, 8 Mega Pixel and 13 Mega Pixel, the camera module has stronger camera function and photographing function, and the requirement on a linear driving device of a lens for realizing the automatic focusing function as the camera module is higher and higher.
For a linear motor with contact between a moving part and a stator part, basically, a magnet carrier of the moving part is a plastic part, the surface is rough, and when the moving part moves relative to other parts, the friction resistance and damage caused by the contact are serious, the imaging precision of a lens is seriously influenced, and the image quality is greatly influenced.
Disclosure of Invention
Problem to prior art existence, the utility model aims to provide a module auto focus voice coil motor makes a video recording, this voice coil motor can effectively reduce frictional resistance, makes linear drive device keep good stability.
In order to achieve the above purpose, the utility model discloses technical scheme as follows:
the utility model provides a module auto focus voice coil motor makes a video recording, includes the base and installs at the inside magnetite carrier of base, but the magnetite carrier is as moving part perpendicular to base reciprocating motion, the magnetite carrier with be provided with the smooth metal assembly in surface that can reduce frictional resistance between the base, metal assembly includes the guide rail axle and the slip guide vane of mutual contact, the slip guide vane can be followed the axial direction reciprocating sliding of guide rail axle.
Furthermore, the base is provided with a containing groove of the guide rail shaft, and the guide rail shaft is fixedly arranged in the containing groove.
Further, the guide rail shaft is cylindrical or elliptic cylindrical, and the radial side surface of the guide rail shaft is in tangential contact with the side wall of the sliding guide piece.
Further, the guide rail shaft is of a hollow structure made of stainless steel.
Further, install the magnetite on the magnetite carrier, the magnetite is installed in the mounting groove of magnetite carrier, slip guide vane fixed mounting be in on the groove surface of mounting groove.
The utility model discloses a guide rail axle and the slip guide vane that set up constitute the slip subassembly of magnetite carrier on the base, make and contact through glossy metal surface between base and the magnetite carrier, when moving part removes, the line contact form of guide rail axle and slip guide vane has reduced area of contact, has reduced frictional resistance, has strengthened the flexibility of magnetite carrier, can effectively improve the precision of auto focus function camera lens.
Drawings
Fig. 1 is a schematic structural diagram of a voice coil motor according to the present invention;
fig. 2 is a schematic cross-sectional view of the assembled middle base and magnet carrier of the present invention.
Detailed Description
To clearly illustrate the design concept of the present invention, the following description is made with reference to the examples.
In the description of the present embodiment, the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as specifically indicating or implying relative importance.
To clearly illustrate the design concept of the present invention, the following description is made with reference to the examples.
The utility model provides a module auto focus voice coil motor makes a video recording, includes the base and installs at the inside magnetite carrier of base, but the magnetite carrier is as moving part perpendicular to base reciprocating motion, the magnetite carrier with be provided with the smooth metal assembly in surface that can reduce frictional resistance between the base, metal assembly includes the guide rail axle and the slip guide vane of mutual contact, the slip guide vane can be followed the axial direction reciprocating sliding of guide rail axle.
The guide rail shaft and the sliding guide sheet which can reduce the friction resistance of the moving part and the stator part are adopted, the use working condition of the existing lens linear driving device is improved, the base is in smooth contact with the magnet carrier, the friction resistance is reduced, the flexibility of the linear driving device is improved, and the imaging precision of the lens is higher.
In order to clarify the technical solution of the present invention, the following description is made in the form of specific embodiments.
Examples
Referring to fig. 1-2, the camera module auto-focusing voice coil motor of the present embodiment includes a base 1, a coil 2-1, a carrier 2-2, a magnet 3 and a housing 4, wherein when the voice coil motor is specifically installed, the magnet 3 is installed in an installation groove 2-3 of the carrier 2-2 to form a magnet carrier 2 of the voice coil motor, the coil 2-1 is installed on an inner side wall of the housing 4, after the coil 2-1 is powered on, under the action of magnetic force generated between the coil 2-1 and the magnet 3, the magnet carrier 2 can reciprocate perpendicular to the base 1 as a moving part, a smooth-surface metal component capable of reducing friction resistance is disposed between the magnet carrier 2 and the base 1, the metal component includes a guide rail shaft 5 and a slide guide 6, and the slide guide 6 can reciprocate along an axial direction of the guide rail shaft 5.
Specifically, a hollow cavity 1-2 is arranged on a base 1, and a magnet carrier 2 is arranged in the hollow cavity 1-2 and can reciprocate vertical to the base 1; the base 1 is provided with a containing groove 1-1 of a guide rail shaft 5, and the guide rail shaft 5 is fixedly arranged on the base 1 by gluing; a mounting groove 2-3 for a magnet 3 is provided on the carrier 2-2, and after the magnet 3 is mounted in the mounting groove 2-3, a slide guide 6 is fixedly mounted on the groove surface of the mounting groove 2-3 by gluing. During the movement, the slide guide 6 is in contact with the cylindrical guide shaft 5 in a tangential direction, and the magnet carrier 2 is reciprocated in the tangential direction in which the side surface of the slide guide 6 is in contact with the guide shaft 5. The sliding form of line contact has greatly reduced the area of contact between base and the magnetite carrier among the prior art, has reduced frictional resistance to the at utmost, through smooth motion track, can effectively improve linear drive arrangement's control accuracy, improves the imaging accuracy of auto focus function camera lens.
The guide rail shaft in the embodiment is of a hollow structure made of stainless steel, so that production materials are reduced and production cost is saved on the premise of meeting the requirement of a smooth contact surface.
It should be noted that, in the above embodiment, besides the cylindrical shape, an elliptic cylindrical guide rail shaft may be adopted, so that the side wall of the guide rail shaft is in tangential contact with the sliding guide vane, thereby meeting the production requirements of products with different specifications; of course, according to the design of the utility model, other irregular columnar structures can achieve the technical effect of the utility model only by meeting the requirement that the sliding guide piece is contacted with the cambered surface and the sliding guide piece is contacted with the cambered surface in a tangent way; in addition, besides the guide rail shaft made of stainless steel, other metal materials after surface polishing treatment, including carbon steel and other alloy steel, can be adopted, so that the guide rail shaft meets the use requirement of smooth surface and the like.
Finally, it is to be understood that the above embodiments are merely exemplary embodiments that have been employed to illustrate the principles of the present invention, and that the present invention is not limited thereto. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention, and these changes and modifications are to be considered as the protection scope of the invention.
Claims (5)
1. The utility model provides a module auto focus voice coil motor makes a video recording, includes the base and installs at the inside magnetite carrier of base, but the magnetite carrier is as moving part perpendicular to base reciprocating motion, a serial communication port, the magnetite carrier with be provided with the smooth metal assembly in surface that can reduce frictional resistance between the base, metal assembly includes the guide rail axle and the sliding guide piece of mutual contact, the sliding guide piece can be followed the axial direction reciprocating sliding of guide rail axle.
2. The auto-focus voice coil motor of claim 1, wherein the base is provided with a receiving groove for the guide rail shaft, and the guide rail shaft is fixedly mounted in the receiving groove.
3. The auto-focus voice coil motor of claim 2, wherein the guide rail shaft is cylindrical or elliptical, and a radial side of the guide rail shaft is in tangential contact with a side wall of the sliding guide vane.
4. The auto-focus voice coil motor of any one of claims 1 to 3, wherein the rail shaft is a hollow structure of stainless steel.
5. The auto-focus voice coil motor according to claim 4, wherein a magnet is mounted on the magnet carrier, the magnet is mounted in a mounting groove of the magnet carrier, and the sliding guide is fixedly mounted on a groove surface of the mounting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921106829.4U CN209982312U (en) | 2019-07-15 | 2019-07-15 | Automatic focusing voice coil motor of camera module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921106829.4U CN209982312U (en) | 2019-07-15 | 2019-07-15 | Automatic focusing voice coil motor of camera module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209982312U true CN209982312U (en) | 2020-01-21 |
Family
ID=69286227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921106829.4U Expired - Fee Related CN209982312U (en) | 2019-07-15 | 2019-07-15 | Automatic focusing voice coil motor of camera module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209982312U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110323920A (en) * | 2019-07-15 | 2019-10-11 | 宜兴市贵鑫磁电高科技有限公司 | A kind of camera module auto-focusing voice coil motor |
| WO2022100580A1 (en) * | 2020-11-13 | 2022-05-19 | 华为技术有限公司 | Voice coil motor, camera module, and electronic device |
-
2019
- 2019-07-15 CN CN201921106829.4U patent/CN209982312U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110323920A (en) * | 2019-07-15 | 2019-10-11 | 宜兴市贵鑫磁电高科技有限公司 | A kind of camera module auto-focusing voice coil motor |
| WO2022100580A1 (en) * | 2020-11-13 | 2022-05-19 | 华为技术有限公司 | Voice coil motor, camera module, and electronic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200121 |