CN109698898A - Driver, camera module and electronic equipment - Google Patents

Driver, camera module and electronic equipment Download PDF

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Publication number
CN109698898A
CN109698898A CN201910059080.0A CN201910059080A CN109698898A CN 109698898 A CN109698898 A CN 109698898A CN 201910059080 A CN201910059080 A CN 201910059080A CN 109698898 A CN109698898 A CN 109698898A
Authority
CN
China
Prior art keywords
support plate
marmem
driver
camera module
ball
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
Application number
CN201910059080.0A
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Chinese (zh)
Inventor
陈泽清
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gree Electric Appliances Inc of Zhuhai
Original Assignee
Gree Electric Appliances Inc of Zhuhai
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to CN201910059080.0A priority Critical patent/CN109698898A/en
Publication of CN109698898A publication Critical patent/CN109698898A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50Constructional details
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/45Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from two or more image sensors being of different type or operating in different modes, e.g. with a CMOS sensor for moving images in combination with a charge-coupled device [CCD] for still images
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/57Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Studio Devices (AREA)

Abstract

The present invention provides a kind of driver, comprising: carriage, the carriage are equipped with the support plate (3) being slidably installed, and the support plate (3) is for carrying part to be moved;Marmem (2), the marmem (2) are passed through electric current, and marmem (2) dilatation drives the support plate (3) to move along the carriage.Driver of the invention solves the problems, such as existing magnetite coil or micro motor high energy consumption, low precision using advanced marmem actuation techniques, realizes low energy consumption, the driving of high-precision kinetic energy;Using the superior ball slide rail of sliding capability, frictional resistance is further decreased, improves mobile accuracy, and overcomes the problem that conventional slide mechanism friction clast causes imaging abnormal.

Description

Driver, camera module and electronic equipment
Technical field
The invention belongs to technical field of electronic products, and in particular to a kind of driver, camera module and electronic equipment.
Background technique
In electronic product camera application at present, from single camera to dual camera, three cameras, four cameras and future Matrix form camera, camera sensing device will become the larger a part of cost of mobile phone, and in these multi-cams, although With different characteristics, but only according to different scene switching to different camera lenses, the utilization rate of sensitive chip is non-in camera It is often low.
It is the important channel for reducing chip cost that a plurality of lenses, which share sensitive chip,.Wherein the technology of most critical is photosensitive core Switching of the piece between different camera lenses, during this switching existing technology mostly using magnetite coil or micro motor as Driving, this driving method power consumption is high, and precision is low;Limit mobile device frequently rubs and can generate clast, to cause to incude The failures such as chip imaging exception.
Summary of the invention
Therefore, the technical problem to be solved by the present invention is to magnetite coil in the prior art or micro motor high energy consumptions, low essence The problem of spending provides a kind of driver, camera module and electronic equipment.
To solve the above-mentioned problems, the present invention provides a kind of driver, comprising:
Carriage, carriage are equipped with the support plate being slidably installed, and support plate is for carrying part to be moved;
Marmem, marmem are passed through electric current, and marmem dilatation drives support plate along sliding Device is mobile.
The object of the invention to solve the technical problems also can be used following technical measures and further realize.
Preferably, carriage includes ball slide rail, and support plate is arranged on ball slide rail;Support plate is moved along ball slide rail.
Preferably, marmem is that shape-memory alloy wire occurs after shape-memory alloy wire is passed through electric current heating Axial shrinkage, current value size are directly proportional to contracted length.
Preferably, there are two marmems, support plate is separately positioned on along the both ends of carriage moving direction.
Preferably, marmem one end is connect with support plate, and the other end is fixed.
Preferably, driver further includes the sensing device for detecting support plate position.
Preferably, sensing device is arranged on support plate.
Preferably, sensing device includes Hall sensor.
Preferably, ball slide rail includes spaced non magnetic ball and magnetic ball, Hall sensor induced magnetism The magnetism that ball generates, detects the shift position of support plate.
Preferably, non magnetic ball and magnetic ball are arranged according to the proportional spacing of 4:1.
Preferably, the non magnetic ball includes ceramic balls, and/or magnetic ball includes magnetic metal ball.
A kind of camera module, using above-mentioned driver.
The object of the invention to solve the technical problems also can be used following technical measures and further realize.
Preferably, camera module further include:
At least two lens group;At least two lens group is arranged along the extending direction of carriage;
Photosensitive element, photosensitive element are mounted on support plate, and are moved with support plate along carriage, and different camera lenses is switched Group, and the light of corresponding lens group light transmission is received, carry out photosensitive imaging.
Preferably, the position of at least two lens group is passed through specific currents rear-guard dynamic load with marmem The mobile position of plate is corresponding.
Preferably, at least two lens group is fixed in camera lens mounting assembly, and camera lens mounting assembly and sliding fill Optical filter is equipped between setting, light exposes to photosensitive element after successively penetrating lens group, optical filter.
Preferably, optical filter is a piece of, and at least two lens group shares a tablet filter.
Preferably, photosensitive element is connected by flexible circuit board and is drawn.
Preferably, at least two lens group is respectively suitable for different photographed scenes.
A kind of electronic equipment, using above-mentioned camera module.
Preferably, photosensitive element is connected to the mainboard of electronic equipment by flexible circuit board.
Driver, photosensitive mould group and electronic equipment provided by the invention at least have it is following the utility model has the advantages that
Driver of the invention, using advanced marmem actuation techniques, solve existing magnetite coil or The problem of micro motor high energy consumption, low precision, realizes low energy consumption, the driving of high-precision kinetic energy, while excellent using sliding capability Ball slide rail more further decreases frictional resistance, improves mobile accuracy, and overcome conventional slide mechanism friction clast and cause Abnormal problem is imaged.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the driver of the embodiment of the present invention;
Fig. 2 is the structural schematic diagram of the camera module of the embodiment of the present invention.
Appended drawing reference indicates are as follows:
1, ball slide rail;2, marmem;3, support plate;4, sensing device;5, lens group;6, photosensitive element;7, mirror Head mounting assembly;8, optical filter;9, flexible circuit board;10, mainboard.
Specific embodiment
In conjunction with referring to shown in Fig. 1 to Fig. 2, a kind of driver, comprising: carriage, carriage are equipped with and are slidably installed Support plate 3;Support plate 3 is for carrying part to be moved;Marmem 2, marmem 2 are passed through electric current, and shape memory closes Golden 2 dilatations driving support plate 3 is moved along carriage.
The driver of the embodiment of the present invention solves existing magnetite using advanced marmem actuation techniques The problem of coil or micro motor high energy consumption, low precision, realizes low energy consumption, the driving of high-precision kinetic energy.
In the present embodiment, carriage includes ball slide rail 1, and support plate 3 is arranged on ball slide rail 1, and support plate 3 is sliding along ball Rail 1 is mobile.Using the superior ball slide rail of sliding capability, frictional resistance is further decreased, improves mobile accuracy, and is overcome often The problem that rule sliding equipment friction clast causes imaging abnormal.
In the present embodiment, marmem 2 is processed into shape-memory alloy wire, shape-memory alloy wire is passed through electric current After heating, axial shrinkage occurs, current value size is directly proportional to contracted length.Control is passed through the electric current of marmem 2, can To change the deformation quantity of marmem, then achieve the purpose that push support plate 3 mobile.2 one end of marmem and load Plate 3 connects, and the other end is fixed, when driver is in camera module or other devices, the other end of marmem 2 It can be fixed on the positions such as carriage, bottom plate, mounting base, phase can be provided in installation space for marmem 2 For the fixation impetus of support plate 3.When 2 heat shrinkable of marmem, pull support plate 3 mobile to fixed one end.Shape There are two memorial alloys 2, is separately positioned on support plate 3 along the both ends of 1 moving direction of ball slide rail.When electric current flows into the shape of one end Memory alloy wire, the shape-memory alloy wire is heated to be started to shrink, and pulls support plate 3 close to its, when electric current disconnection, other end shape Shape memory alloys are powered, and pull support plate 3 mobile to the other end.
In the present embodiment, driver further includes the sensing device 4 for detecting 3 shift position of support plate.Sensing device 4 can The position of real-time measurement support plate 3 guarantees that support plate 3 is moved to accurate location.Sensing device 4 is arranged on support plate 3, can be preferred It is arranged in along the edge of 1 moving direction of ball slide rail, it is also an option that, there are two sensing devices 4, is separately positioned on 3 edge of support plate The two edges of 1 moving direction of ball slide rail.
Preferably, sensing device 4 includes Hall sensor.Hall sensor is a kind of magnetic field made according to Hall effect Sensor has to magnetic-field-sensitive, structure is simple, small in size, frequency response is wide, output voltage variation is greatly with long service life etc. Advantage is used widely in displacement measurement field.
In the present embodiment, ball slide rail 1 includes spaced non magnetic ball and magnetic ball, Hall sensor induction The shift position of support plate 3 is detected in the magnetic field that magnetic ball generates.The magnetic field that magnetic ball generates can be the magnetic of varying strength , it is identified convenient for the detection of Hall sensor, also can choose and the magnetic ball of generation same magnetic field only is set in specific position. Preferably, non magnetic ball and magnetic ball are arranged according to the proportional spacing of 4:1.Non magnetic ball includes ceramic balls, and/or Magnetic ball includes magnetic metal ball.Ceramic balls can also further increase the sliding capability of ball slide rail 1.
Driver provided in this embodiment, using marmem actuation techniques, low energy consumption, high-precision uses ball Sliding rail 1, coefficient of friction is small, and the shift position of Hall sensor and ball slide rail cooperation real-time detection support plate 3 is further ensured that shifting Dynamic precision.
The present invention also provides a kind of camera modules, using above-mentioned driver.Camera module further include: at least two Lens group 5, be respectively used to transmitted light;At least two lens group 5 is arranged along the extending direction of carriage;Photosensitive element 6, photosensitive element 6 is mounted on support plate 3, and is moved with support plate 3 along carriage, and different lens groups 5 is switched, and is received corresponding 5 light transmission of lens group light, carry out photosensitive imaging.
Camera module provided in this embodiment, using above-mentioned driver, can low energy consumption, accurately control photosensitive member Part 6 is switched in a plurality of lenses group 5, is met different photographed scenes to the needs of lens group 5, is improved photosensitive element 6 Utilization rate reduces the cost of camera module.Simultaneously because reducing the usage quantity of sensitive chip, to save multiple cores Design interval between piece, is greatly lowered the design size of camera module.
In the present embodiment, the position of at least two lens group 5, after being passed through specific currents with marmem 2 The position for driving support plate 3 mobile is corresponding.Photosensitive element 6 is needed according to actual needs to determine in the position of support plate 3, be can be The center of support plate 3, is also possible to edge, when photosensitive element 6 is in 3 center of support plate, the mobile position of support plate 3 and lens group 5 position axis is overlapped, to guarantee that photosensitive element 6 can smoothly receive light.When photosensitive element 6 is in 3 edge of support plate When, the mobile position of support plate 3 corresponding will also be deviated with the position axis of lens group 5, to guarantee that photosensitive element 6 can be smooth Receive light.Calibration support plate 3 is when being moved to different lens groups 5, the electric current being passed through in marmem 2, will current value at this time The control signal of the lens group 5 is switched to as control photosensitive element 6.And so on, calibration support plate 3 is directed at other lens groups Current value when 5 is as respective control signal.In addition to this, the magnetic ball position in camera module, in ball slide rail 1 Set relatively fixed with the position of lens group 5, whether Hall sensor detection support plate 3 is when being directed at lens group 5, it is only necessary to detect whether In magnetic field in magnetic ball.
In the present embodiment, at least two lens group 5 is fixed in camera lens mounting assembly 7.Camera lens mounting assembly 7 is adopted Use moulding.Optical filter 8 is equipped between camera lens mounting assembly 7 and carriage, after light successively penetrates lens group 5, optical filter 8 Expose to photosensitive element 6.Optical filter 8 is a piece of, the shared tablet filter 8 of at least two lens group 5.Lens group 5 and camera lens Mounting assembly 7, optical filter 8 carry out bonding installation using common process.
In the present embodiment, since photosensitive element 6 needs to switch between different lens groups 5, the number of photosensitive element 6 It is believed that breath is drawn by the connection of flexible circuit board 9, flexible circuit board is using kapton polyimide film as made of substrate One kind having height reliability, excellent flexible printed circuit board, with Distribution density is high, light-weight, thickness is thin, bending Good feature, is very suitable to the data connection of photosensitive element 6 in the present embodiment.
In the present embodiment, at least two lens group 5 is respectively suitable for different photographed scenes, can be fixed-focus or change Coke manually or automatically selects different lens groups under different photographed scenes.
The camera module of the present embodiment is had the lens group 5 of a variety of different photographed scenes, can be used with free switching, Mobile using different current value control photosensitive elements 6, to realize the switching of different lens groups 5, control precision is high, switch speed Fastly.
The embodiment of the present invention also provides electronic equipment, and using above-mentioned camera module, photosensitive element 6 passes through flexible circuit board 9 are connected to the mainboard 10 of electronic equipment.
Those skilled in the art will readily recognize that above-mentioned each advantageous manner can be free under the premise of not conflicting Ground combination, superposition.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within principle.Above only It is the preferred embodiment of the present invention, it is noted that for those skilled in the art, do not departing from this hair Under the premise of bright technical principle, several improvements and modifications can also be made, these improvements and modifications also should be regarded as guarantor of the invention Protect range.

Claims (20)

1. a kind of driver characterized by comprising
Carriage, the carriage are equipped with the support plate (3) being slidably installed, and the support plate (3) is for carrying part to be moved;
Marmem (2), the marmem (2) are passed through electric current, and marmem (2) dilatation drives The support plate (3) is moved to move along the carriage.
2. driver according to claim 1, which is characterized in that the carriage includes ball slide rail (1), the load Plate (3) is arranged on the ball slide rail (1);The support plate (3) is mobile along the ball slide rail (1).
3. driver according to claim 1, which is characterized in that the marmem (2) is marmem After the shape-memory alloy wire is passed through electric current heating axial shrinkage occurs for silk, and current value size is directly proportional to contracted length.
4. driver according to claim 1 to 3, which is characterized in that there are two the marmems (2), point It She Zhi not be in the support plate (3) along the both ends of the carriage moving direction.
5. driver according to claim 4, which is characterized in that described marmem (2) one end and the support plate (3) it connects, the other end is fixed.
6. driver according to claim 2, which is characterized in that driver further includes for detecting the support plate (3) position The device (4) set.
7. driver according to claim 6, which is characterized in that the sensing device (4) is arranged in the support plate (3) On.
8. driver according to claim 7, which is characterized in that the sensing device (4) includes Hall sensor.
9. driver according to claim 8, which is characterized in that the ball slide rail (1) includes spaced non-magnetic Property ball and magnetic ball, the Hall sensor incude the magnetic field that the magnetic ball generates, detect the shifting of the support plate (3) Dynamic position.
10. driver according to claim 9, which is characterized in that the non magnetic ball and magnetic ball are according to 4:1's Proportional spacing setting.
11. driver according to claim 10, which is characterized in that the non magnetic ball includes ceramic balls, and/or The magnetism ball includes magnetic metal ball.
12. a kind of camera module, which is characterized in that use any driver of claim 1-11.
13. camera module according to claim 12, which is characterized in that camera module further include:
At least two lens group (5);Described at least two lens group (5) is arranged along the extending direction of the carriage;
Photosensitive element (6), the photosensitive element (6) are mounted on the support plate (3), and with the support plate (3) along the sliding Device is mobile, switches different lens groups (5), and receive the light of corresponding lens group (5) light transmission, carries out photosensitive imaging.
14. camera module according to claim 13, which is characterized in that the cloth of described at least two lens group (5) It is corresponding to be passed through the mobile position of specific currents rear-guard dynamic load plate (3) with the marmem (2) for seated position.
15. camera module according to claim 13, which is characterized in that described at least two lens group (5) is fixed It is arranged on camera lens mounting assembly (7), optical filter is equipped between the camera lens mounting assembly (7) and the sensing element (6) (8), light exposes to photosensitive element (6) after successively penetrating lens group (5), optical filter (8).
16. camera module according to claim 15, which is characterized in that the optical filter (8) be it is a piece of, it is described at least Two lens groups (5) share a piece of optical filter (8).
17. camera module according to claim 13, which is characterized in that the photosensitive element (6) passes through flexible circuit Plate (9) connection is drawn.
18. any camera module of 3-17 according to claim 1, which is characterized in that described at least two lens group (5) it is respectively suitable for different photographed scenes.
19. a kind of electronic equipment, which is characterized in that use any camera module of claim 13-18.
20. electronic equipment according to claim 19, which is characterized in that the photosensitive element (6) passes through flexible circuit board (9) it is connected to the mainboard (10) of the electronic equipment.
CN201910059080.0A 2019-01-22 2019-01-22 Driver, camera module and electronic equipment Pending CN109698898A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910059080.0A CN109698898A (en) 2019-01-22 2019-01-22 Driver, camera module and electronic equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910059080.0A CN109698898A (en) 2019-01-22 2019-01-22 Driver, camera module and electronic equipment

Publications (1)

Publication Number Publication Date
CN109698898A true CN109698898A (en) 2019-04-30

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111510632A (en) * 2020-04-28 2020-08-07 深圳创维-Rgb电子有限公司 Lift type camera position detection circuit, method and computer readable storage medium
CN112526801A (en) * 2019-09-03 2021-03-19 宏达国际电子股份有限公司 Double-lens imaging module and extraction method thereof
CN112637463A (en) * 2020-12-22 2021-04-09 维沃移动通信有限公司 Camera module and electronic equipment
WO2021092856A1 (en) * 2019-11-14 2021-05-20 南昌欧菲光电技术有限公司 Camera module, and mobile terminal
CN113154191A (en) * 2020-01-22 2021-07-23 苏州佳世达电通有限公司 Support frame and display device using same
CN113230132A (en) * 2021-05-20 2021-08-10 浙江厚达智能科技股份有限公司 Traditional Chinese medicine decocting method
CN113230133A (en) * 2021-05-20 2021-08-10 浙江厚达智能科技股份有限公司 Multi-blade stirring type medicine decocting pot

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CN107087090A (en) * 2017-05-31 2017-08-22 广东欧珀移动通信有限公司 The casing assembly and electronic equipment of electronic equipment
CN107846535A (en) * 2017-10-24 2018-03-27 信利光电股份有限公司 A kind of camera module
CN207504998U (en) * 2017-12-14 2018-06-15 信利光电股份有限公司 A kind of single-chip multi-cam module
CN209250748U (en) * 2019-01-22 2019-08-13 珠海格力电器股份有限公司 Driver, camera module and electronic equipment

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JPH06320369A (en) * 1993-05-12 1994-11-22 Harmonic Drive Syst Ind Co Ltd Stroke end detecting device for stage device
JP2006226809A (en) * 2005-02-17 2006-08-31 Ntn Corp Load detector and load detection method
CN105156856A (en) * 2014-05-28 2015-12-16 索斯科公司 Device for positioning an object at a user-adjusted postion
CN107087090A (en) * 2017-05-31 2017-08-22 广东欧珀移动通信有限公司 The casing assembly and electronic equipment of electronic equipment
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Cited By (9)

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Publication number Priority date Publication date Assignee Title
CN112526801A (en) * 2019-09-03 2021-03-19 宏达国际电子股份有限公司 Double-lens imaging module and extraction method thereof
CN112526801B (en) * 2019-09-03 2022-01-25 宏达国际电子股份有限公司 Double-lens imaging module and extraction method thereof
WO2021092856A1 (en) * 2019-11-14 2021-05-20 南昌欧菲光电技术有限公司 Camera module, and mobile terminal
CN113154191A (en) * 2020-01-22 2021-07-23 苏州佳世达电通有限公司 Support frame and display device using same
CN111510632A (en) * 2020-04-28 2020-08-07 深圳创维-Rgb电子有限公司 Lift type camera position detection circuit, method and computer readable storage medium
CN112637463A (en) * 2020-12-22 2021-04-09 维沃移动通信有限公司 Camera module and electronic equipment
CN112637463B (en) * 2020-12-22 2022-10-21 维沃移动通信有限公司 Camera module and electronic equipment
CN113230132A (en) * 2021-05-20 2021-08-10 浙江厚达智能科技股份有限公司 Traditional Chinese medicine decocting method
CN113230133A (en) * 2021-05-20 2021-08-10 浙江厚达智能科技股份有限公司 Multi-blade stirring type medicine decocting pot

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