CN101661150A - Drive assembly and lens module used by same - Google Patents
Drive assembly and lens module used by same Download PDFInfo
- Publication number
- CN101661150A CN101661150A CN200810304228A CN200810304228A CN101661150A CN 101661150 A CN101661150 A CN 101661150A CN 200810304228 A CN200810304228 A CN 200810304228A CN 200810304228 A CN200810304228 A CN 200810304228A CN 101661150 A CN101661150 A CN 101661150A
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- threaded rod
- threaded
- driving section
- driving
- actuator
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Abstract
The invention relates to a drive assembly which comprises a driving part and an actuator. The driving part comprises a threaded rod and a driving portion. A first limiting portion and a second limiting portion are arranged at both ends of the threaded rod. The threaded rod comprises a threaded portion with threads. The driving portion comprises a threaded hole. The actuator is used for driving thethreaded rod to rotate. The threaded rod further comprises two jacketed portions respectively arranged at both ends of the threaded portion. The drive assembly further comprises two elastic elements.The elastic elements are respectively sleeved on the two jacketed portions and respectively fixed on the first limiting portion and the second limiting portion. When the actuator continues to rotatedue to incorrect manipulation, the jacketed portions of the threaded rod can idly rotate in the driving portion. Hereafter, when the actuator rotates along an opposite direction, the elastic elementscan provide an elastic recoil for the driving portion, so that the threaded hole of the driving portion can be in threaded connection with the threaded portion again, and the block of the actuator isavoided.
Description
Technical field
The present invention relates to the camera lens module of a kind of driven unit and application thereof.
Background technology
The camera lens module is equipped with focusing or zoom function usually, to adjust the image space of scenery, improves image quality.
A kind of existing camera lens module comprises that a lens subassembly, threaded rod along the optical axis direction setting of lens subassembly, one are sheathed on the threaded rod and the driving section that is connected with lens subassembly, one are used to drive the actuator that threaded rod rotates.During focusing/zoom, actuator drives threaded rod and rotates, and the driving section cooperates with screw-threaded engagement power effect between the threaded rod forces the driving section to move up and down along threaded rod, and the drive lens assembly moves along its optical axis direction, realization focusing/zoom function.Usually, threaded rod is provided with limiting section, to limit the moving range of driving section.
There is following deficiency in existing camera lens module: if misoperation (excessively focusing/zoom) or actuator situation such as make mistakes occurs, will cause that threaded rod crosses commentaries on classics, and cause the driving section stuck in limiting section, and can't recover.
Summary of the invention
In view of this, the invention provides a kind of driven unit of stuck phenomenon and camera lens module of application thereof of preventing.
A kind of driven unit, it comprises: a driving member and an actuator.Described driving member comprises a threaded rod and a driving section.Described threaded rod comprises one first limiting section and one second limiting section that is arranged at its two ends respectively.This threaded rod comprises that one has the threaded portion of screw thread.Described driving section comprises a threaded hole that is complementary with described screw thread.This driving section movably winding on described threaded rod.Described actuator is used to drive described threaded rod and rotates.Described threaded rod further comprises two socket parts that are arranged at the two ends, threaded portion respectively.Described driven unit further comprises two flexible members.Described flexible member is socketed on two socket parts on the described threaded rod respectively and is retained on respectively on described first limiting section and second limiting section.
A kind of camera lens module, it comprises: a lens subassembly, a driving member, an actuator.Described driving member comprises a threaded rod and a driving section.Described threaded rod comprises one first limiting section and one second limiting section that is arranged at its two ends respectively.This threaded rod comprises that one has the threaded portion of screw thread.Described driving section comprises a threaded hole that is complementary with described screw thread.This driving section movably winding on described threaded rod and affixed with described lens subassembly.Described actuator is used to drive described threaded rod and rotates, so that the driving section moves up and down at the optical axis direction of threaded rod upper edge lens subassembly.Described threaded rod further comprises two socket parts that are arranged at the two ends, threaded portion respectively.Described camera lens module further comprises two flexible members.Described flexible member is socketed on two socket parts on the described threaded rod respectively and is retained on respectively on described first limiting section and second limiting section.
Compared to prior art, described two flexible members are socketed in respectively on the socket part at described threaded rod two ends, and when actuator rotates when maloperation occurring along a direction, can dally in the threaded hole of described driving section in the socket part of described threaded rod.At this moment, when actuator rotates in opposite direction, described flexible member can be described driving section one elasticity Hui Li is provided, the threaded hole that makes described driving section again with described threaded rod on the threaded portion bolt, therefore can avoid the driving section because the rotation of actuator is stuck on described first limiting section or second limiting section.
Description of drawings
Fig. 1 provides the schematic perspective view of driven unit for better embodiment of the present invention;
Fig. 2 is the diagrammatic cross-section of the camera lens module of the driven unit in the application drawing 1.
Embodiment
See also Fig. 1, the driven unit 100 that better embodiment of the present invention provides comprises a driving member 20, two flexible members 25 and actuators 40.
Described driving member 20 comprises a threaded rod 21 and a driving section 22.Described threaded rod 21 comprises first limiting section 211 and second limiting section 212 that is arranged at described threaded rod 21 two ends respectively.Described first limiting section, second limiting section 211,212 are arranged at the opposite end of described threaded rod 21.Described threaded rod 21 comprises a threaded portion 213 and is arranged at two socket parts 214 at 213 two ends, threaded portion respectively.Described threaded portion 213 is provided with screw thread 215.Preferably, in the present embodiment, described screw thread 215 adopts multi-thread right-hand thread, is beneficial to transmission.
Offer on the described driving section 22 with described threaded portion 212 on the threaded hole 222 that is complementary of screw thread 215.Described driving section 22 was bolted on the threaded rod 21 by described threaded hole 222 and cooperating of described screw thread 215.Described driving section 22 can adopt plastic material or elastic metallic material to make, as polyoxymethylene (Polyoxymethylene, POM) or Elastic Steel, to guarantee that driving section 22 has enough rigidity drive lens assemblies 30 and moves.In the present embodiment, described driving section 22 adopts Elastic Steel to make.
In the present embodiment, described flexible member 25 is a spring, and this flexible member 25 is set on the socket part 214 of described threaded rod 21 and an end is retained on described first limiting section 211 or second limiting section 212.The diameter of the threaded hole 222 of described driving section 22 is greater than the diameter of described socket part 214 and less than the diameter of described flexible member 25.
In the practical application, described flexible member 25 also can be the rubber-like material and makes, and as rubber, silica gel material etc., is not limited to present embodiment.
See also Fig. 2, the camera lens module 200 that better embodiment of the present invention provides comprises a lens barrel 10, driven unit 100, a lens subassembly 30 and a limit rotation mechanism 50.
In the present embodiment, described lens barrel 10 is a tubular structure, and it is used to accommodate described driven unit 100, lens subassembly 30, actuator 40 and limit rotation mechanism 50.
Described lens subassembly 30 comprises a fixing tube 31 and lens 32 that are contained in the fixing tube 31.The central axis direction of described lens 32 is the optical axis direction of described lens subassembly 30.The central axis direction of these lens 32 and described threaded rod 21 that direction is set is parallel.These lens 32 can adopt spherical mirror or aspheric mirror, glass lens or glass mirror.Preferably, the lens 32 of present embodiment adopt aspherical lens.Described fixing tube 31 and described driving section 22 are affixed, and can move with the optical axis direction of described driving section 22 along lens subassembly 30.This fixing tube 31 also further comprises the sliding part 311 of vertical described lens 32 central axis directions.
Be appreciated that described lens 32 also can increase more eyeglass or increase optical elements such as optical filter, iris diaphragm plate, to improve the image quality of camera lens module 100, are not limited to present embodiment.
Described actuator 40 is connected with an end of threaded rod 21, is used to drive described threaded rod 21 and rotates.
Described limit rotation mechanism 50 comprises a guide 51, a gathering sill 52.Described guide 51 is along the optical axis direction setting of lens subassembly 30, and the sliding part 311 of described fixing tube 31 slidably is installed on guide 51.In the present embodiment, described gathering sill 52 is opened on the described guide 51.The guiding of this gathering sill 52 is parallel with the optical axis direction of lens subassembly 30.Described sliding part 311 is embedded in the gathering sill 52.So, make driving section 22 be subjected to the screw-threaded engagement masterpiece time spent, move up and down, but not rotate with threaded rod 21 at the central axis direction of described threaded rod 21 upper edge lens 32.Be appreciated that described guide 51 also can be integrally formed with lens barrel 10, that is, directly offer gathering sill 52 at lens barrel 10 inwalls.
In the focusing/zooming process, described actuator 40 drives threaded rod 21 and rotates, described driving section 22 moves up or down along the optical axis direction of lens subassembly 30 because of being subjected to screw-threaded engagement power, so that the fixing tube 31 that is connected with driving section 22 moves up and down along the optical axis direction of lens subassembly 30.When misoperation (excessively focusing/zoom) or actuator 40 situation such as make mistakes occurring, described actuator 40 continues to drive threaded rods 21 and rotates and causes driving section 22 to moving near the position of first limiting section 211 or second limiting section 212, and described driving section 22 supports therein on the flexible member 25 that is set on the socket part 214.Because the diameter of the threaded hole 222 of driving section 22 is not greater than having screw thread on the diameter of described socket part 214 and the socket part 214, therefore, dally in the threaded hole 222 of described driving section 22 in the socket part 214 of described threaded rod 21.Thereby can avoid driving section 22 because the rotation of actuator 40 is stuck on described first limiting section 211 or second limiting section 212.When actuator 40 drives threaded rods 21 when other reverse direction rotates, described flexible member 25 provide threaded hole 222 that elasticity Hui Li makes described driving section 22 again with described threaded rod 21 on threaded portion 213 bolts.
Be understandable that, for the person of ordinary skill of the art, can make other various corresponding changes and distortion by technical conceive according to the present invention, and all these change the protection domain that all should belong to claim of the present invention with distortion.
Claims (10)
1. driven unit, it comprises: a driving member and an actuator, described driving member comprises a threaded rod and a driving section, described threaded rod comprises one first limiting section and one second limiting section that is arranged at its two ends respectively, this threaded rod comprises that one has the threaded portion of screw thread, described driving section comprises a threaded hole that is complementary with described screw thread, this driving section movably winding on described threaded rod, described actuator is used to drive described threaded rod and rotates, it is characterized in that: described threaded rod further comprises two socket parts that are arranged at the two ends, threaded portion respectively, described driven unit further comprises two flexible members, and described flexible member is socketed on two socket parts on the described threaded rod respectively and is retained on respectively on described first limiting section and second limiting section.
2. driven unit as claimed in claim 1 is characterized in that: described flexible member is spring or adopts flexible material to make.
3. driven unit as claimed in claim 1 is characterized in that: the diameter of the threaded hole of described driving section is greater than the diameter of described socket part and less than the diameter of described flexible member.
4. driven unit as claimed in claim 1 is characterized in that: described driving section adopts plastics or elastic metallic to make.
5. camera lens module, it comprises: a lens subassembly and a driven unit, described driven unit comprises a driving member and an actuator, described driving member comprises a threaded rod and a driving section, described threaded rod comprises one first limiting section and one second limiting section that is arranged at its two ends respectively, this threaded rod comprises that one has the threaded portion of screw thread, described driving section comprises a threaded hole that is complementary with described screw thread, this driving section movably winding on described threaded rod and affixed with described lens subassembly, described actuator is used to drive described threaded rod and rotates, so that the driving section moves up and down at the optical axis direction of threaded rod upper edge lens subassembly, it is characterized in that: described threaded rod further comprises two socket parts that are arranged at the two ends, threaded portion respectively, described camera lens module further comprises two flexible members, and described flexible member is socketed on two socket parts on the described threaded rod respectively and is retained on respectively on described first limiting section and second limiting section.
6. camera lens module as claimed in claim 5 is characterized in that: described flexible member is spring or adopts flexible material to make.
7. camera lens module as claimed in claim 5 is characterized in that: the diameter of the threaded hole of described driving section is greater than the diameter of described socket part and less than the diameter of described flexible member.
8. camera lens module as claimed in claim 5 is characterized in that: described lens subassembly comprises that a fixing tube and at least one are contained in the eyeglass in the described fixing tube, and described driving section is attached to described fixing tube.
9. camera lens module as claimed in claim 8, it is characterized in that: described camera lens module further comprises a limit rotation mechanism, being used to limit described driving section rotates with described threaded rod, described limit rotation mechanism comprises the guide that is provided with along the optical axis direction of described lens subassembly, described fixing tube also further comprises the axial sliding part in a vertical described lens center, and this sliding part slidably is installed on guide.
10. camera lens module as claimed in claim 8 is characterized in that: described camera lens module further comprises a lens barrel, and described lens subassembly, driving member, actuator and limit rotation mechanism are contained in the described lens barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810304228A CN101661150A (en) | 2008-08-27 | 2008-08-27 | Drive assembly and lens module used by same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810304228A CN101661150A (en) | 2008-08-27 | 2008-08-27 | Drive assembly and lens module used by same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101661150A true CN101661150A (en) | 2010-03-03 |
Family
ID=41789273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810304228A Pending CN101661150A (en) | 2008-08-27 | 2008-08-27 | Drive assembly and lens module used by same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101661150A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102508393A (en) * | 2011-11-22 | 2012-06-20 | 吴江市博众精工科技有限公司 | Regulating module for flat camera mechanism |
| CN110579853A (en) * | 2019-10-15 | 2019-12-17 | 上海热像科技股份有限公司 | Focusing mechanism and infrared imaging device |
| CN111316152A (en) * | 2017-11-30 | 2020-06-19 | 深圳市柔宇科技有限公司 | Head-mounted electronic equipment |
| CN113885162A (en) * | 2021-11-18 | 2022-01-04 | 中汽创智科技有限公司 | Camera lens, vehicle-mounted camera and vehicle |
| CN114087560A (en) * | 2021-11-26 | 2022-02-25 | 深圳市洋明达科技有限公司 | Photocuring 3D printer base light diffusion structure |
-
2008
- 2008-08-27 CN CN200810304228A patent/CN101661150A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102508393A (en) * | 2011-11-22 | 2012-06-20 | 吴江市博众精工科技有限公司 | Regulating module for flat camera mechanism |
| CN102508393B (en) * | 2011-11-22 | 2014-05-28 | 吴江市博众精工科技有限公司 | Regulating module for flat camera mechanism |
| CN111316152A (en) * | 2017-11-30 | 2020-06-19 | 深圳市柔宇科技有限公司 | Head-mounted electronic equipment |
| CN110579853A (en) * | 2019-10-15 | 2019-12-17 | 上海热像科技股份有限公司 | Focusing mechanism and infrared imaging device |
| CN113885162A (en) * | 2021-11-18 | 2022-01-04 | 中汽创智科技有限公司 | Camera lens, vehicle-mounted camera and vehicle |
| CN114087560A (en) * | 2021-11-26 | 2022-02-25 | 深圳市洋明达科技有限公司 | Photocuring 3D printer base light diffusion structure |
| CN114087560B (en) * | 2021-11-26 | 2024-05-28 | 深圳市洋明达科技有限公司 | Light diffusion structure of base of photo-curing 3D printer |
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Open date: 20100303 |