CN110323920A - A kind of camera module auto-focusing voice coil motor - Google Patents
A kind of camera module auto-focusing voice coil motor Download PDFInfo
- Publication number
- CN110323920A CN110323920A CN201910635818.3A CN201910635818A CN110323920A CN 110323920 A CN110323920 A CN 110323920A CN 201910635818 A CN201910635818 A CN 201910635818A CN 110323920 A CN110323920 A CN 110323920A
- Authority
- CN
- China
- Prior art keywords
- lead rail
- rail axis
- pedestal
- magnetite
- guide plate
- 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.)
- Pending
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 40
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000002184 metal Substances 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims description 5
- 230000004308 accommodation Effects 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 230000000712 assembly Effects 0.000 abstract description 2
- 238000000429 assembly Methods 0.000 abstract description 2
- 238000003384 imaging method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000003292 glue Substances 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
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
Classifications
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
- H02K41/035—DC motors; Unipolar motors
- H02K41/0352—Unipolar motors
- H02K41/0354—Lorentz force motors, e.g. voice coil motors
- H02K41/0356—Lorentz force motors, e.g. voice coil motors moving along a straight path
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Lens Barrels (AREA)
Abstract
The invention discloses a kind of camera module auto-focusing voice coil motors, including pedestal and it is mounted on the magnetite carrier of chassis interior, magnetite carrier can be moved back and forth as moving parts perpendicular to pedestal, it is characterized in that, the smooth metal assembly in surface that can reduce frictional resistance is provided between the magnetite carrier and the pedestal, the metal assembly includes the lead rail axis to contact with each other and sliding guide plate, and the sliding guide plate can reciprocatingly slide along the axial direction of the lead rail axis.Pass through the lead rail axis and sliding guide plate of setting, constitute slide assemblies of the magnetite carrier on pedestal, make to be contacted between pedestal and magnetite carrier by smooth metal surface, when moving parts is moved, the line contact form of lead rail axis and sliding guide plate, reduces contact area, reduces frictional resistance, the flexibility of magnetite carrier is enhanced, the precision of automatic focusing function camera lens can be effectively improved.
Description
Technical field
The present invention relates to camera module group lens linear actuating device field more particularly to a kind of camera module auto-focusing sounds
Coil motor.
Background technique
From function machine to intelligent machine across era development, therefore in entrained camera module also developed to automatically from fixed-focus
Focus function.From becoming increasingly popular for the high-pixel cameras mould groups such as 5 Mega Pixel, 8 Mega Pixel, 13 Mega Pixel,
Camera function and camera function it is stronger and stronger, to as camera module realize automatic focusing function camera lens Linear Driving
The requirement of device is also higher and higher.
It is directed to the linear motor that there is contact between moving parts and stator component, the substantially magnetite of moving component carries
Body is plastic parts, and surface is relatively rough, this component is when with other component relative motion, because there is contact friction
Resistance and damage have seriously affected the imaging precision of camera lens, have brought larger impact to the quality of image than more serious.
Summary of the invention
In view of the problems of the existing technology, the purpose of the present invention is to provide a kind of camera module auto-focusing voice coil horses
It reaches, which can effectively reduce frictional resistance, and linear actuating device is made to keep good stability.
To achieve the above object, technical solution of the present invention is as follows:
A kind of camera module auto-focusing voice coil motor including pedestal and is mounted on the magnetite carrier of chassis interior, magnetite carrier
It can be moved back and forth perpendicular to pedestal as moving parts, friction resistance can be reduced by being provided between the magnetite carrier and the pedestal
The smooth metal assembly in the surface of power, the metal assembly include the lead rail axis to contact with each other and sliding guide plate, and the sliding is led
Piece can reciprocatingly slide along the axial direction of the lead rail axis.
Further, the accommodation groove of the lead rail axis is provided on the pedestal, the lead rail axis is fixedly mounted on the appearance
It sets in slot.
Further, the lead rail axis is cylindric or elliptic cylindrical shape, the radial side of the lead rail axis and the sliding
The tangent contact of the side wall of guide card.
Further, the lead rail axis is the hollow structure of stainless steel material.
Further, magnetite is installed on the magnetite carrier, the magnetite is mounted in the mounting groove of magnetite carrier, described
Sliding guide plate is fixedly mounted on the groove face of the mounting groove.
The present invention constitutes slide assemblies of the magnetite carrier on pedestal, makes bottom by the lead rail axis and sliding guide plate of setting
Seat is contacted between magnetite carrier by smooth metal surface, when moving parts is moved, lead rail axis and sliding
The line contact form of guide card, reduces contact area, reduces frictional resistance, enhances the flexibility of magnetite carrier, can be effective
Improve the precision of automatic focusing function camera lens.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of voice coil motor in the present invention；
Fig. 2 is pedestal and the schematic cross-section after the assembling of magnetite carrier in the present invention.
Specific embodiment
To clearly demonstrate design philosophy of the invention, below with reference to example, the present invention will be described.
In the description of present embodiment, the orientation of the instructions such as term " on ", "lower", "front", "rear", "left", "right" or
Positional relationship is to be based on the orientation or positional relationship shown in the drawings, it is only for convenient for the description present invention and simplify description,
Rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, because
This is not considered as limiting the invention.In addition, term " first ", " second " are used for description purposes only, and should not be understood as
Specific indication or suggestion relative importance.
To clearly demonstrate design philosophy of the invention, below with reference to example, the present invention will be described.
A kind of camera module auto-focusing voice coil motor including pedestal and is mounted on the magnetite carrier of chassis interior, magnetite
Carrier can be moved back and forth as moving parts perpendicular to pedestal, be provided with to reduce between the magnetite carrier and the pedestal and be rubbed
The smooth metal assembly in the surface of resistance is wiped, the metal assembly includes the lead rail axis to contact with each other and sliding guide plate, the cunning
Dynamic guide card can reciprocatingly slide along the axial direction of the lead rail axis.
By using the lead rail axis and sliding guide plate that can reduce moving parts Yu stator component frictional resistance, improve existing
The applying working condition of camera lens linear actuating device, the smooth contact of pedestal and magnetite carrier, reduces frictional resistance, improves linear
The flexibility ratio of driving device keeps the precision of lens imaging higher.
In order to which what is be more clear is illustrated the technical solution in the present invention, carried out in the form of specific embodiment below
Explanation.
Embodiment
Referring to Fig. 1-Fig. 2, a kind of camera module auto-focusing voice coil motor of the present embodiment, including pedestal 1, coil 2-1,
Carrier 2-2, magnetite 3 and shell 4, specifically when installation, magnetite 3 is mounted on the composition voice coil horse mounting groove 2-3 on carrier 2-2 Nei
The magnetite carrier 2 reached, coil 2-1 are mounted on the inner sidewall of shell 4, after coil 2-1 is powered, between coil 2-1 and magnetite 3
Under the action of generating magnetic force, magnetite carrier 2 can be moved back and forth as moving parts perpendicular to pedestal 1, magnetite carrier 2 and pedestal 1
Between be provided with the smooth metal assembly in surface that can reduce frictional resistance, metal assembly include the lead rail axis 5 to contact with each other and
Sliding guide plate 6, sliding guide plate 6 can reciprocatingly slide along the axial direction of lead rail axis 5.
Specifically, hollow cavity 1-2 is provided on pedestal 1, magnetite carrier 2 is mounted in hollow cavity 1-2 and can be vertical
It is moved back and forth in pedestal 1；The accommodation groove 1-1 of lead rail axis 5 is provided on pedestal 1, lead rail axis 5 is adhesively fixed by glue to be mounted on
On pedestal 1；On carrier 2-2, it is provided with the mounting groove 2-3 of magnetite 3, after magnetite 3 is installed to mounting groove 2-3, sliding is led
Piece 6 is equally adhesively fixed on the groove face for being mounted on mounting groove 2-3 by glue.When specific mobile, sliding guide plate 6 with it is cylindric
The tangent contact of lead rail axis 5, magnetite carrier 2 reciprocatingly slides along the tangential direction that 6 side of sliding guide plate is contacted with lead rail axis 5.Line
Contact slideably, significantly reduces the contact area between pedestal in the prior art and magnetite carrier, drops to the full extent
Low frictional resistance can effectively increase the control precision of linear actuating device by smooth motion profile, and it is automatic right to improve
The imaging precision of burnt function camera lens.
Lead rail axis in the present embodiment is that the hollow structure of stainless steel material subtracts under the premise of meeting smooth contact surfaces
Lack production material, saves production cost.
Need to illustrate has, cylindric in addition to using in above-described embodiment, and the lead rail axis of elliptic cylindrical shape also can be used, make
The side wall of lead rail axis with sliding guide plate is tangent contacts, meet the production needs of products of different specifications；Certainly, according to the present invention
Mentality of designing, other irregular column structures need to only meet that be in contact with sliding guide plate be cambered surface, make sliding guide plate and cambered surface
Tangent contact can reach the technical effect in the present invention；In addition, also can be used in addition to the lead rail axis using stainless steel material
Other metal materials after surface polishing treatment, including carbon steel and other steel alloys, make lead rail axis meet the smooth use in surface
Demand etc..
Finally, it will be appreciated that the principle that embodiment of above is intended to be merely illustrative of the present and the example that uses
Property embodiment, however the present invention is not limited thereto.For those of ordinary skills, do not depart from it is of the invention
In the case where principle and essence, various changes and modifications can be made therein, these variations and modifications are also considered as protection model of the invention
It encloses.
Claims (5)
1. a kind of camera module auto-focusing voice coil motor, including pedestal and it is mounted on the magnetite carrier of chassis interior, magnetite carries
Body can be moved back and forth as moving parts perpendicular to pedestal, which is characterized in that be arranged between the magnetite carrier and the pedestal
The metal assembly for having the surface that can reduce frictional resistance smooth, the metal assembly include that the lead rail axis to contact with each other and sliding are led
Piece, the sliding guide plate can reciprocatingly slide along the axial direction of the lead rail axis.
2. auto-focusing voice coil motor as described in claim 1, which is characterized in that be provided with the lead rail axis on the pedestal
Accommodation groove, the lead rail axis is fixedly mounted in the accommodation groove.
3. auto-focusing voice coil motor as claimed in claim 2, which is characterized in that the lead rail axis is cylindric or oval
Column, the radial side of the lead rail axis with the side wall of the sliding guide plate is tangent contacts.
4. the auto-focusing voice coil motor as described in claim 1-3 any claim, which is characterized in that the lead rail axis is
The hollow structure of stainless steel material.
5. auto-focusing voice coil motor as claimed in claim 4, which is characterized in that magnetite is installed on the magnetite carrier,
The magnetite is mounted in the mounting groove of magnetite carrier, and the sliding guide plate is fixedly mounted on the groove face of the mounting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910635818.3A CN110323920A (en) | 2019-07-15 | 2019-07-15 | A kind of camera module auto-focusing voice coil motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910635818.3A CN110323920A (en) | 2019-07-15 | 2019-07-15 | A kind of camera module auto-focusing voice coil motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110323920A true CN110323920A (en) | 2019-10-11 |
Family
ID=68123490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910635818.3A Pending CN110323920A (en) | 2019-07-15 | 2019-07-15 | A kind of camera module auto-focusing voice coil motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110323920A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113556459A (en) * | 2021-08-30 | 2021-10-26 | Oppo广东移动通信有限公司 | Drive module, image acquisition device and electronic equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060214520A1 (en) * | 2005-03-24 | 2006-09-28 | Yu-Kuang Tseng | Voice coil motor apparatus |
| CN203414665U (en) * | 2013-07-26 | 2014-01-29 | 瑞声声学科技(苏州)有限公司 | Focusing motor and mobile phone with focusing motor |
| CN209982312U (en) * | 2019-07-15 | 2020-01-21 | 宜兴市贵鑫磁电高科技有限公司 | Automatic focusing voice coil motor of camera module |
-
2019
- 2019-07-15 CN CN201910635818.3A patent/CN110323920A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060214520A1 (en) * | 2005-03-24 | 2006-09-28 | Yu-Kuang Tseng | Voice coil motor apparatus |
| CN203414665U (en) * | 2013-07-26 | 2014-01-29 | 瑞声声学科技(苏州)有限公司 | Focusing motor and mobile phone with focusing motor |
| CN209982312U (en) * | 2019-07-15 | 2020-01-21 | 宜兴市贵鑫磁电高科技有限公司 | Automatic focusing voice coil motor of camera module |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113556459A (en) * | 2021-08-30 | 2021-10-26 | Oppo广东移动通信有限公司 | Drive module, image acquisition device and electronic equipment |
| WO2023029802A1 (en) * | 2021-08-30 | 2023-03-09 | Oppo广东移动通信有限公司 | Driving module, image acquisition apparatus and electronic device |
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