CN112188038B - Method for improving assembling precision of camera module - Google Patents
Method for improving assembling precision of camera module Download PDFInfo
- Publication number
- CN112188038B CN112188038B CN201910584201.3A CN201910584201A CN112188038B CN 112188038 B CN112188038 B CN 112188038B CN 201910584201 A CN201910584201 A CN 201910584201A CN 112188038 B CN112188038 B CN 112188038B
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- China
- Prior art keywords
- elastic component
- module
- shell
- lens cone
- radial pressure
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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
- H04N23/51—Housings
-
- 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
Abstract
The invention relates to a method for improving the assembly precision of a camera module, which comprises the following steps: providing a shell and a lens barrel module; providing an elastic component; assembling the shell, the lens cone module and the elastic component into a whole; wherein, the elastic component is positioned between the shell and the lens cone module; the elastic component is elastically deformed to provide radial pressure, and the radial pressure generates axial friction force to keep the relative position of the lens cone module and the shell; and the elastic component is subjected to plastic deformation through the process, so that the radial pressure is adjusted to reach a preset value.
Description
Technical Field
The invention relates to the technical field of camera modules, in particular to a method for improving the assembling precision of a camera module.
Background
With the rapid development of the smart phone industry, the requirements of people on the imaging effect of the mobile phone Camera are gradually increased, and compared with the traditional Camera system, a Cell phone Camera Module (CCM) is widely applied to various new-generation portable Camera devices due to the advantages of miniaturization, low power consumption, low cost, high image quality and the like.
Currently, the CCM includes a lens unit, a Voice Coil Motor (VCM), an infrared cut filter, a sensor, a Flexible Printed Circuit Board (FPC) or a Printed Circuit Board (PCB), and a connector connected to a main Board of the mobile phone. The VCM is used for realizing the automatic focusing function of the lens unit, the VCM usually consists of a magnet and a coil, the coil is electrified firstly in the working process of the VCM, a magnetic field is generated after the coil is electrified, the magnetic field generated in the coil acts on the magnet, and the coil moves under the action of electromagnetic force, so that the lens unit connected with the VCM is driven to move, the image distance and the object distance are adjusted, and a clear image is presented.
Disclosure of Invention
The invention aims to provide a method for improving the assembly precision of a camera module and reducing the assembly tolerance.
In order to solve the above technical problems, the present invention provides a method for improving the assembly precision of a camera module, comprising:
providing a shell and a lens barrel module; providing an elastic component;
assembling the shell, the lens cone module and the elastic component into a whole; wherein, the elastic component is positioned between the shell and the lens cone module;
the elastic component is elastically deformed to provide radial pressure, and the radial pressure generates axial friction force to keep the relative position of the lens cone module and the shell;
and the elastic component is subjected to plastic deformation through the process, so that the radial pressure is adjusted to reach a preset value.
Optionally, the process comprises the following steps: ultrasonic vibration, mechanical vibration, or high-temperature treatment.
Optionally, the elastic component has an arc-shaped metal wire structure that can be plastically deformed.
Optionally, the elastic component has a metal bump structure capable of undergoing plastic deformation.
Optionally, the elastic member is further provided with an elastic clamping structure capable of moving radially.
Optionally, one end of the elastic clamping structure is suspended.
Optionally, the elastic component is fixedly arranged inside the shell.
Compared with the prior art, the method for improving the assembly precision of the camera module has the following beneficial effects:
according to the invention, an elastic component is provided and arranged between the shell and the lens cone module, the lens cone module is arranged in the shell, the elastic component is elastically deformed to provide radial pressure, the radial pressure generates axial friction force to keep the relative position of the lens cone module and the shell, so that the elastic component is plastically deformed, and the radial pressure is adjusted to reach a preset value, thereby achieving the target assembly precision.
Drawings
Fig. 1 is a schematic view of a camera module according to an embodiment of the invention;
FIG. 2 is a schematic view of an elastic member according to an embodiment of the present invention;
fig. 3 is a schematic cross-sectional view of an elastic member according to an embodiment of the invention.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather construed as limited to the embodiments set forth herein.
Next, the present invention is described in detail by using schematic diagrams, and when the embodiments of the present invention are described in detail, the schematic diagrams are only examples for convenience of description, and the scope of the present invention should not be limited herein.
In order to make the above objects, features and advantages of the present invention more comprehensible, a method of improving the assembling accuracy of a camera module according to the present invention is described in detail below with reference to the accompanying drawings.
Referring to fig. 1, the method for improving the assembly accuracy of the camera module according to the present invention includes: the lens barrel module 20 is assembled by providing the housing 10, the lens barrel module 20 and the elastic member 30, applying a force to install the lens barrel module 20 into the housing 10, the lens barrel module 20 and the elastic member 30 are assembled into a whole, the elastic member 30 is positioned between the housing 10 and the lens barrel module 20, and the outer wall of the lens barrel module 20 is pressed against the elastic member 30. Wherein the elastic member 30 is elastically deformed to provide a radial pressure, and the radial pressure generates an axial frictional force to maintain the relative position of the lens barrel module 20 and the housing 10. Further, the elastic member 30 is plastically deformed by a process to adjust the radial pressure to a predetermined value.
Specifically, the process comprises the following steps: the elastic member 30 is plastically deformed in one or more of an ultrasonic vibration mode, a mechanical vibration mode, and a high-temperature treatment mode, so that the assembling tolerance between the lens barrel module 20 and the housing 10 is reduced, and the target assembling precision is achieved. The elastic member 30 is fixedly disposed at the inner side of the housing 10, the lens barrel module 20 includes a lens unit, a carrier for supporting the lens unit, and a metal sheet, and the elastic member 30 is disposed between the housing 10 and the metal sheet.
Referring to fig. 2 and 3, fig. 2 is a schematic view of an elastic component 30, and fig. 3 is a schematic cross-sectional view of the elastic component 30, where the elastic component 30 has an arc-shaped metal line structure 31, and the arc-shaped metal line structure 31 may be a metal line such as a gold wire or a copper wire. When acting force is applied to assemble the lens barrel module 20 on the housing 10, the arc-shaped metal wire structure 31 is plastically deformed by adopting the above process, and the radial pressure is adjusted to reach a preset value, i.e. the top of the arc-shaped metal wire structure 31 is flat, so that the lens barrel module 20 is matched with the assembly structure of the housing 10, and the assembly tolerance between the lens barrel module 20 and the housing 10 is reduced.
In another embodiment of the present invention, the elastic component has a metal bump structure, and the above process is adopted to plastically deform the metal bump structure, so that the top of the metal bump structure is flat, and the assembly tolerance between the lens barrel module and the housing is reduced.
As shown in fig. 2 and fig. 3, the elastic member 30 is further provided with an elastic clamping structure 32 capable of moving radially, and when the lens barrel module 20 is pressed against the elastic clamping structure 32, the elastic clamping structure 32 is elastically deformed and stops, so that the elastic member clamps the lens barrel module. One end of the elastic clamping structure 32 is fixed, and the other end is suspended, so that when the lens barrel module 20 is pressed against the elastic component, the elastic clamping structure 32 is elastically deformed, and provides radial pressure to stabilize the lens barrel module 20. Moreover, the top end of the plastically deformed arc-shaped metal wire structure 31 is located on the elastic clamping structure 32, so that the arc-shaped metal wire structure 31 contacts the lens barrel module 20 to adjust the radial pressure. In addition, the elastic clamping structure 32 may further be provided with an arc-shaped metal wire structure or a metal bump structure, so as to increase the friction force when the lens barrel module 20 moves axially.
In summary, in the method for improving the assembling precision of the camera module according to the present invention, the housing and the lens barrel module are provided; providing an elastic component; assembling the shell, the lens cone module and the elastic component into a whole; wherein, the elastic component is positioned between the shell and the lens cone module; the elastic component is elastically deformed to provide radial pressure, and the radial pressure generates axial friction force to keep the relative position of the lens cone module and the shell; the elastic component is subjected to plastic deformation through the technological process, so that the radial pressure is adjusted to reach a preset value, the assembly tolerance is reduced, and the target assembly precision is achieved.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make variations and modifications of the present invention without departing from the spirit and scope of the present invention by using the methods and technical contents disclosed above.
Claims (4)
1. The utility model provides a method for improve camera module group equipment precision which characterized in that:
providing a shell and a lens barrel module; providing an elastic component;
assembling the shell, the lens cone module and the elastic component into a whole; wherein, the elastic component is positioned between the shell and the lens cone module;
the elastic component is elastically deformed to provide radial pressure, and the radial pressure generates axial friction force to keep the relative position of the lens cone module and the shell;
the elastic component is subjected to plastic deformation through the process, so that the radial pressure is adjusted to reach a preset value, and the assembly tolerance between the lens cone module and the shell is reduced;
the elastic component is also provided with an elastic clamping structure capable of moving in the radial direction, and one end of the elastic clamping structure is suspended, so that when the lens cone module is pressed against the elastic component, the elastic clamping structure is elastically deformed, and radial pressure is provided to stabilize the lens cone module;
the elastic component is provided with an arc-shaped metal wire structure capable of generating plastic deformation, and the top end of the arc-shaped metal wire structure after plastic deformation is located on the elastic clamping structure, so that the arc-shaped metal wire structure contacts the lens cone module and adjusts the radial pressure.
2. The method for improving the assembly accuracy of the camera module according to claim 1, wherein the process comprises the following steps: ultrasonic vibration, mechanical vibration, or high-temperature treatment.
3. The method for improving the assembly accuracy of the camera module as claimed in claim 1, wherein the elastic member has a metal bump structure capable of undergoing plastic deformation.
4. The method for improving the assembling accuracy of the camera module according to claim 1, wherein the elastic member is fixed inside the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910584201.3A CN112188038B (en) | 2019-07-01 | 2019-07-01 | Method for improving assembling precision of camera module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910584201.3A CN112188038B (en) | 2019-07-01 | 2019-07-01 | Method for improving assembling precision of camera module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112188038A CN112188038A (en) | 2021-01-05 |
| CN112188038B true CN112188038B (en) | 2023-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910584201.3A Active CN112188038B (en) | 2019-07-01 | 2019-07-01 | Method for improving assembling precision of camera module |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101997381A (en) * | 2009-08-14 | 2011-03-30 | 鸿富锦精密工业（深圳）有限公司 | Voice coil motor and camera module |
| CN103076707A (en) * | 2013-01-16 | 2013-05-01 | 格科微电子（上海）有限公司 | Implementation method of step motion of camera module lens barrel, module and portable equipment |
| CN105633108A (en) * | 2015-12-10 | 2016-06-01 | 格科微电子（上海）有限公司 | Multi-camera module and assembling method therefor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003333437A (en) * | 2002-05-13 | 2003-11-21 | Rohm Co Ltd | Image sensor module and manufacturing method thereof |
| CN103676077B (en) * | 2012-09-18 | 2016-05-25 | 新思考电机有限公司 | Lens driver, automatic focusing camera and prevent the method for adjustment of optical axis deflection |
| CN104002979B (en) * | 2014-05-27 | 2016-03-02 | 大连理工大学 | A kind of thermal deformation self aligning bracing or strutting arrangement of supporting construction |
| JP2017219675A (en) * | 2016-06-07 | 2017-12-14 | 日本電産コパル株式会社 | Lens drive leaf spring and lens drive device |
| CN109839789A (en) * | 2017-11-27 | 2019-06-04 | 格科微电子（上海）有限公司 | Camera module |
-
2019
- 2019-07-01 CN CN201910584201.3A patent/CN112188038B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101997381A (en) * | 2009-08-14 | 2011-03-30 | 鸿富锦精密工业（深圳）有限公司 | Voice coil motor and camera module |
| CN103076707A (en) * | 2013-01-16 | 2013-05-01 | 格科微电子（上海）有限公司 | Implementation method of step motion of camera module lens barrel, module and portable equipment |
| CN105633108A (en) * | 2015-12-10 | 2016-06-01 | 格科微电子（上海）有限公司 | Multi-camera module and assembling method therefor |
Non-Patent Citations (1)
| Title |
|---|
| 佳能EOS M值得等待吗?;黄艳琼;《影像视觉》;20130305(第03期);全文 * |
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| CN112188038A (en) | 2021-01-05 |
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