CN203224661U - Lens linear driver - Google Patents
Lens linear driver Download PDFInfo
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- CN203224661U CN203224661U CN201320105772.2U CN201320105772U CN203224661U CN 203224661 U CN203224661 U CN 203224661U CN 201320105772 U CN201320105772 U CN 201320105772U CN 203224661 U CN203224661 U CN 203224661U
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- lens
- plane spring
- support
- lower plane
- spring
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Abstract
The utility model discloses a lens linear driver. The main body of the driver is a fixing support of the linear driver. Each of four corners of the fixing support of the driver is provided with a support rod which stretches out upwards. The four support rods form an accommodation chamber. The bottom of the inner part of the accommodation chamber is equipped with a lower plane spring. A lens supporter is disposed above the lower plane spring. The outer side of the lens supporter is sleeved with a focusing coil. Four magnets are respectively disposed between the focusing coil and each of the support rods. A gasket is disposed above the focusing coil. An upper plane spring is disposed above the gasket. The outer side of the fixing support of the driver is covered with a shell. The shell is fixedly installed together with the fixing support of the driver. The lens linear driver employs a special design of structure, in which all related parts are assembled in one part. The special design is capable of guaranteeing the relative position of each part, in favor of guaranteeing quality parameters of products, particularly in favor of controlling deflection angle of an optical axis. The lens linear driver is easy to assemble, has fewer components, and is convenient for mass production.
Description
Technical field
The utility model discloses a kind of lens Linear actuator, particularly relates to a kind of lens Linear actuator with high reliability that is matched in miniature camera focusing usefulness specially; The utility model cooperates with high integrated, microminiaturized, high-resolution sensor and lens, and extensively Ying Yu is in the equipment such as miniature camera, mobile phone, computer, automobile and robot that have from focus function.
Background technology
Along with continuous advancement in technology, the appearance of smart mobile phone and development, application and the recoverable amount of smart mobile phone in people's life is more and more, and camera or perhaps camera function have almost become the indispensable function of smart mobile phone, along with high-pixel camera heads such as 5M, 8M, 12M are universal day by day, the shooting of mobile phone and camera function are from strength to strength, and be also more and more higher for the requirement as the lens actuator of camera vitals.The similar lens driver structure that adopts in the existing domestic and international miniature camera comparatively generally adopts following structure: the fixed support assembly is rotor with installing down with lower plane spring, lens supports body and coil etc.; With magnetite, yoke, to go up plane spring etc. be stator with last fixed support assembly, is a completed lens drive unit with stator and rotor assembly again.The above structure is a step overall package when being the assembling of stator and rotor in the end, be difficult to guarantee that stator is consistent with the optical axis of centre of rotor position and lens, when optical axis is inconsistent, lens support and lens can occur toward the phenomenon of one side inclination or translation, thereby cause driver easily when work, lens support and lens can move not smooth or produce deflection angle, and this image quality to camera can produce great influence.Structure need be done a large amount of accurate tools or improve fixed support mould and die accuracy up and down for guaranteeing the optical axis unanimity as mentioned above, will increase production cost greatly like this.
Summary of the invention
Adopt upper and lower two-part structure at the above-mentioned lens Linear actuator of mentioning of the prior art, again it is installed together after the assembling respectively, cause the optical axis of optical axis and lens inconsistent easily, perhaps can increase the problem of production cost, the utility model provides a kind of new lens Linear actuator, it adopts special structural design, can realize that all parts all are assemblied on the same parts, adopt unified benchmark, can effectively guarantee the relative position of each product, be conducive to guarantee each Q factor of product.
The technical scheme that its technical matters that solves the utility model adopts is: a kind of lens Linear actuator, driver main body is the driver fixed support, four jiaos of places of driver fixed support are provided with a support bar that protrudes upward respectively, four support bars form a containing cavity, the inner bottom of containing cavity is equipped with the lower plane spring, lower plane spring top is equipped with the lens support, the lens support outside is set with the focusing coil, be respectively equipped with a magnetite between focusing coil and the support bar, focusing coil top is provided with pad, the pad top is equipped with plane spring, driver fixed support outside mask is equipped with shell, and shell and driver fixed support are fixedly installed togather.
The technical scheme that its technical matters that solves the utility model adopts further comprises:
Described driver fixed support is through hole in the middle of the bottom, and the through hole edge is provided with projection upwards, and lens support bottom shape matches with the shape of projection, and lens support bottom is connected on the projection.
Described driver fixed support bottom is fixed with the first lower plane spring reference column that raises up, and correspondence position has the first lower plane location hole of the spring on the lower plane spring, and the first lower plane spring reference column is inserted in the first lower plane location hole of the spring.
Described lens support bottom is provided with the second lower plane spring reference column of projection, and correspondence position has the second lower plane location hole of the spring on the lower plane spring, and the second lower plane spring reference column is inserted in the second lower plane location hole of the spring.
Described support bar top be fixed with raise up first on the plane spring reference column, correspondence position has plane spring pilot hole on first on the last plane spring, the plane spring reference column is inserted on first in the plane spring pilot hole on first.
Described lens support top be provided with projection second on the plane spring reference column, correspondence position has plane spring pilot hole on second on the last plane spring, the plane spring reference column is inserted on second in the plane spring pilot hole on second.
Described magnetite xsect is trapezoidal.
Described focusing coil is octagon.
The beneficial effects of the utility model are: the utility model adopts special structural design, all associated components all are assemblied on the same parts, can effectively guarantee the relative position of each product, be conducive to guarantee each Q factor of product, be particularly conducive to control optical axis deflection angle, and assembling is simple, the component number amount is few, be easy to volume production.
Below in conjunction with the drawings and specific embodiments the utility model is described further.
Description of drawings
Fig. 1 is the utility model decomposing state structural representation.
Fig. 2 is the utility model cross-sectional view.
Among the figure, 1-shell, the last plane spring of 2-, 3-pad, 4-magnetite, the 5-coil of focusing, 6-lens support, plane spring reference column on the 6A-first, 6B-support limited post, the 6C-first lower plane spring reference column, 7-lower plane spring, 8-driver fixed support, the 8A-second lower plane spring reference column, 8B-the 3rd lower plane spring reference column, plane spring reference column on the 8C-second, plane spring reference column on the 8D-the 3rd.
Embodiment
Present embodiment is the utility model preferred implementation, and other all its principles are identical with present embodiment or approximate with basic structure, all within the utility model protection domain.
Please in conjunction with referring to accompanying drawing 1 and accompanying drawing 2, the utility model is mainly a kind of lens Linear actuator structure that can control lens tilt or translation, its main body is driver fixed support 8, driver fixed support 8 bottoms are square, identical with the lens actuator shape of cross section, 8 four jiaos of places of driver fixed support are provided with a support bar that protrudes upward respectively, four support bars form a containing cavity, place, inner four angles of containing cavity is provided with a lower plane spring reference column that protrudes upward respectively, in the present embodiment, only draw two, be respectively the second lower plane spring reference column 8A and the 3rd lower plane spring reference column 8B, the inner bottom of containing cavity is equipped with lower plane spring 7, lower plane spring 7 offers the lower plane location hole of the spring corresponding to lower plane spring reference column position, the lower plane location hole of the spring is arranged on the lower plane spring reference column, and lower plane spring 7 is installed in the driver fixed support 8.Lower plane spring 7 tops are equipped with lens support 6, lens support 6 is the cylindrical body of band central through hole, be used for support of lens, during assembling, lens can be installed in the lens support 6, be through hole in the middle of driver fixed support 8 bottoms, the through hole edge is provided with projection upwards, and lens support 6 bottom shapes match with the shape of projection, lens support 6 just can be installed together with driver fixed support 8, simultaneously, play position-limiting action.In the present embodiment, be provided with four first outstanding lower plane spring reference column 6C in lens support 6 bottoms, correspondence position has the lower plane location hole of the spring on the lower plane spring 7, and lens support 6 can play the effect that auxiliary positioning is installed to lower plane spring 7.In the present embodiment, lens support 6 outer shape are approximate octagon, the annular that matches of focusing coil 5 shapes and lens support 6 outsides, and focusing coil 5 is sleeved on lens support 6 outsides.Be respectively equipped with a magnetite 4 between the support bar on focusing coil 5 and the driver fixed support 8, in the present embodiment, the xsect of magnetite 4 is trapezoidal, and magnetite 4 just is placed in the space between the support bar on focus coil 5 and the driver fixed support 8.Focusing coil 5 tops are provided with a pad 3, pad 3 tops are provided with plane spring 2, lens support 6 tops are provided with plane spring reference column 6A on first, in the present embodiment, plane spring reference column 6A is provided with 8 on first, and the support column top on the driver fixed support 8 is provided with on second plane spring reference column 8D on the plane spring reference column 8C and the 3rd, in the present embodiment, each support column top is equipped with the plane spring reference column, in the present embodiment, only draws two.Last plane spring 2 has pilot hole corresponding to the last plane spring reference column position at the support column top on lens support 6 and the driver fixed support 8, can play the effect of installation, location to last plane spring 2.In the utility model outside mask shell 1 is housed, shell 1 is fixedly installed togather with driver fixed support 8, and shell 1 is also held concurrently for the square metallic object that is placed in band circular hole on the fixed support and is the yoke of driver.
All product all are assemblied on the same driver fixed support in the utility model structure, relative position guarantee easily and assembly technology simple, can effectively guarantee precision and the yield rate of product.
Assembly technology of the present utility model is as follows:
1, will focus coil 5 suits and be fixed on the outside of lens support 6;
2, be installed in lower plane spring 7 on the lens support 6 and finish and being electrically connected of the coil 5 of focusing, the lower plane spring reference column 6C of lens support 6 belows inserts on the lower plane spring 7 in the corresponding pilot hole;
3, the parts assembly with step 1 and step 2 composition inserts driver fixed support 8, in the corresponding pilot hole, lens support 6 lower edges are connected on the projection on internal edges edge on the driver fixed support 8 simultaneously on the lower plane spring reference column 8A insertion lower plane spring 7 on the driver fixed support 8;
4, magnetite 4 is placed in position, support bracket fastened four angles of driver;
5, pad 3 is installed in focusing coil 5 tops;
6, will go up plane spring 2 and be installed in pad 3 tops, simultaneously, the last plane spring reference column at the support column top on the driver fixed support 8 and the last plane spring reference column at lens support 6 tops are inserted on the plane spring 2 in the corresponding pilot hole;
7, shell 1 is fixedly mounted on the outside, finishes installation.
After finishing installation, lens support 6 upper and lower surfaces form the elastic system of keeping in balance property and a stability in moving process, and focusing coil 5 orders about lens support 6 in the electromagnetic force that produces under the effect of magnetite 4 around after the energising and moves to optical axis direction.Placed on the driver fixed support 8 by magnetic shell 1, play the effect of yoke simultaneously, increase electromagnetic induction power, can effectively reduce magnetite or coil dimension, be conducive to realize the microminiaturization of product, driving power capable of reducing power source is saved the energy simultaneously.
The utility model adopts special structural design, all associated components all are assemblied on the same parts, can effectively guarantee the relative position of each product, be conducive to guarantee each Q factor of product, be particularly conducive to control optical axis deflection angle, and assembling is simple, the component number amount is few, be easy to volume production.
Claims (8)
1. lens Linear actuator, it is characterized in that: described driver main body is the driver fixed support, four jiaos of places of driver fixed support are provided with a support bar that protrudes upward respectively, four support bars form a containing cavity, the inner bottom of containing cavity is equipped with the lower plane spring, lower plane spring top is equipped with the lens support, the lens support outside is set with the focusing coil, be respectively equipped with a magnetite between focusing coil and the support bar, focusing coil top is provided with pad, the pad top is equipped with plane spring, and driver fixed support outside mask is equipped with shell, and shell and driver fixed support are fixedly installed togather.
2. lens Linear actuator according to claim 1, it is characterized in that: described driver fixed support is through hole in the middle of the bottom, the through hole edge is provided with projection upwards, and lens support bottom shape matches with the shape of projection, and lens support bottom is connected on the projection.
3. lens Linear actuator according to claim 1 and 2, it is characterized in that: described driver fixed support bottom is fixed with the first lower plane spring reference column that raises up, correspondence position has the first lower plane location hole of the spring on the lower plane spring, and the first lower plane spring reference column is inserted in the first lower plane location hole of the spring.
4. lens Linear actuator according to claim 1 and 2, it is characterized in that: described lens support bottom is provided with the second lower plane spring reference column of projection, correspondence position has the second lower plane location hole of the spring on the lower plane spring, and the second lower plane spring reference column is inserted in the second lower plane location hole of the spring.
5. lens Linear actuator according to claim 1 and 2, it is characterized in that: described support bar top be fixed with raise up first on the plane spring reference column, correspondence position has plane spring pilot hole on first on the last plane spring, and the plane spring reference column is inserted on first in the plane spring pilot hole on first.
6. lens Linear actuator according to claim 1 and 2, it is characterized in that: described lens support top be provided with the projection second on the plane spring reference column, correspondence position has plane spring pilot hole on second on the last plane spring, and the plane spring reference column is inserted on second in the plane spring pilot hole on second.
7. lens Linear actuator according to claim 1 and 2, it is characterized in that: described magnetite xsect is trapezoidal.
8. lens Linear actuator according to claim 1 and 2, it is characterized in that: described focusing coil is octagon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320105772.2U CN203224661U (en) | 2013-03-08 | 2013-03-08 | Lens linear driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320105772.2U CN203224661U (en) | 2013-03-08 | 2013-03-08 | Lens linear driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203224661U true CN203224661U (en) | 2013-10-02 |
Family
ID=49251662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320105772.2U Expired - Fee Related CN203224661U (en) | 2013-03-08 | 2013-03-08 | Lens linear driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203224661U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103176259A (en) * | 2013-03-08 | 2013-06-26 | 深圳市都乐精密制造有限公司 | Lens linear actuator and assembly technology thereof |
-
2013
- 2013-03-08 CN CN201320105772.2U patent/CN203224661U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103176259A (en) * | 2013-03-08 | 2013-06-26 | 深圳市都乐精密制造有限公司 | Lens linear actuator and assembly technology thereof |
| CN103176259B (en) * | 2013-03-08 | 2015-07-01 | 深圳市都乐精密制造有限公司 | Lens linear actuator and assembly technology thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131002 Termination date: 20140308 |