CN209250748U - Driver, camera module and electronic equipment - Google Patents
Driver, camera module and electronic equipment Download PDFInfo
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- CN209250748U CN209250748U CN201920111582.9U CN201920111582U CN209250748U CN 209250748 U CN209250748 U CN 209250748U CN 201920111582 U CN201920111582 U CN 201920111582U CN 209250748 U CN209250748 U CN 209250748U
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- support plate
- marmem
- driver
- camera module
- ball
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Abstract
The utility model 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.The driver of the utility model 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
Technical field
The utility model belongs to technical field of electronic products, and in particular to a kind of driver, camera module and electronics are set
It is standby.
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.
Utility model content
Therefore, the technical problems to be solved in the utility model be in the prior art magnetite coil or micro motor high energy consumption,
The problem of low precision, provides a kind of driver, camera module and electronic equipment.
To solve the above-mentioned problems, the utility model 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.
It the purpose of this utility model and solves its technical problem also following technical measures can be used to 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.
It the purpose of this utility model and solves its technical problem also following technical measures can be used to 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, camera lens mounting assembly and photosensitive member
Optical filter is equipped between part, 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 utility model at least have it is following the utility model has the advantages that
The driver of the utility model solves existing magnetite line using advanced marmem actuation techniques
The problem of circle or micro motor high energy consumption, low precision, realizes low energy consumption, the driving of high-precision kinetic energy, while using sliding property
The superior ball slide rail of energy, further decreases frictional resistance, improves mobile accuracy, and overcome conventional slide mechanism friction clast
The problem for causing imaging abnormal.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the driver of the utility model embodiment;
Fig. 2 is the structural schematic diagram of the camera module of the utility model embodiment.
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 utility model embodiment is solved existing using advanced marmem actuation techniques
The problem of magnetite 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, the other end
Marmem is powered, and pulls 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
Be 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 support plate 3
Along 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 utility model additionally provides a kind of camera module, using above-mentioned driver.Camera module further include: at least
Two lens groups 5, are respectively used to transmitted light;At least two lens group 5 is arranged along the extending direction of carriage;It is photosensitive
Element 6, photosensitive element 6 are mounted on support plate 3, and are moved with support plate 3 along carriage, switch different lens groups 5, and receive
The light of 5 light transmission of corresponding lens group, carries 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 utility model embodiment also provides electronic equipment, and using above-mentioned camera module, photosensitive element 6 passes through flexible electrical
Road plate 9 is 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 only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all practical at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the guarantor of the utility model within novel spirit and principle
Within the scope of shield.Above are merely preferred embodiments of the utility model, it is noted that for the ordinary skill of the art
For personnel, without deviating from the technical principle of the utility model, several improvements and modifications can also be made, these improvement
It also should be regarded as the protection scope of the utility model with modification.
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 sensing 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 photosensitive 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.
Priority Applications (1)
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CN201920111582.9U CN209250748U (en) | 2019-01-22 | 2019-01-22 | Driver, camera module and electronic equipment |
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CN201920111582.9U CN209250748U (en) | 2019-01-22 | 2019-01-22 | Driver, camera module and electronic equipment |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109698898A (en) * | 2019-01-22 | 2019-04-30 | 珠海格力电器股份有限公司 | Driver, camera module and electronic equipment |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109698898A (en) * | 2019-01-22 | 2019-04-30 | 珠海格力电器股份有限公司 | Driver, camera module and electronic equipment |
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