CN108873238A - Energization motor self-checking device and method - Google Patents
Energization motor self-checking device and method Download PDFInfo
- Publication number
- CN108873238A CN108873238A CN201810943507.9A CN201810943507A CN108873238A CN 108873238 A CN108873238 A CN 108873238A CN 201810943507 A CN201810943507 A CN 201810943507A CN 108873238 A CN108873238 A CN 108873238A
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- voice coil
- coil motor
- driving chip
- motor
- energization
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000006073 displacement reaction Methods 0.000 claims abstract description 44
- 230000005611 electricity Effects 0.000 claims description 13
- 238000003384 imaging method Methods 0.000 description 8
- 239000003990 capacitor Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000001131 transforming effect Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
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- 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
-
- 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
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Control Of Linear Motors (AREA)
Abstract
The present invention provides a kind of energization motor self-checking device and method, including automatic calibration machine platform and the driving chip for being electrically connected to the automatic calibration machine platform, the driving chip is also electrically coupled to two connection terminals of voice coil motor, the automatic calibration machine platform is for exporting fixed voltage, and the fixed voltage is transferred to the driving chip, the driving chip is used to that the fixed voltage to be converted to corresponding voltage according to the displacement of the voice coil motor focusing position, and the corresponding voltage is converted into corresponding current, the driving chip is also used to for corresponding current to be transferred to the voice coil motor.This energization motor self-checking device and method, the fixed voltage that automatic calibration machine platform exports can be converted to the corresponding voltage of displacement needed for voice coil motor by driving chip, it is reconverted into corresponding current and is transferred to voice coil motor, driving voice coil motor is moved to specific position, voice coil motor is calibrated, to realize the energization calibration of voice coil motor.
Description
Technical field
The present invention relates to technical field of imaging, more particularly to a kind of energization motor self-checking device and method.
Background technique
Voice coil motor (VCM) is one of the critical component of automatic focusing camera mould group, and cardinal principle is permanent at one
In magnetic field, by changing the DC current size of voice coil motor interior loop, to control the stretch position of spring leaf, to drive sound
Coil motor moves up and down.Mobile phone camera widely uses voice coil motor to realize automatic focusing function, passes through the adjustable mirror of VCM
Clearly image is presented in the position of head.
In the manufacturing process of camera module, voice coil motor is calibrated, and adjusts it between image sensor chip
Relative position so that camera lens focusing when can obtain clearest image.The calibration of voice coil motor is usually in automatic calibration machine
It is carried out on platform, however, this automatic calibration machine platform can not achieve the automatic calibration to the voice coil motor of energized state.
Summary of the invention
The object of the present invention is to provide a kind of automatic schools of energization motor calibrated automatically that can be achieved to energized coils motor
Standard apparatus and method.
A kind of energization motor self-checking device including automatic calibration machine platform and is electrically connected to the automatic calibration machine platform
Driving chip, the driving chip are also electrically coupled to two connection terminals of voice coil motor, and the automatic calibration machine platform is for defeated
Fixed voltage out, and the fixed voltage is transferred to the driving chip, the driving chip is used for according to the voice coil horse
The fixed voltage is converted to corresponding voltage by the displacement up to focusing position, and the corresponding voltage is converted to corresponding electricity
Stream, the driving chip are also used to for corresponding current to be transferred to the voice coil motor
Wherein in an embodiment, the automatic calibration machine platform is equipped with pad, and the automatic calibration machine platform passes through pad electricity
It is connected to the driving chip.
Wherein in an embodiment, the energization motor self-checking device further includes pinboard, and the driving chip is set to
The pinboard.
Wherein in an embodiment, the driving chip, the first connector, the second connector are integrated on the pinboard,
The output terminal of the automatic calibration machine platform is electrically connected with first connector, and the driving chip is electrically connected to described first
Connector and second connector；The driving chip is electrically connected to the institute of the voice coil motor by second connector
State connection terminal.
Wherein in an embodiment, the driving chip is electrically connected to the voice coil motor, the connecting plate by connecting plate
On set there are two location hole, the location hole of the connecting plate and the connection terminal of the voice coil motor are corresponding, described
Connecting plate is electrically connected by the location hole with the connection terminal of the voice coil motor.
Wherein in an embodiment, the energization motor self-checking device further includes controller, and the controller is connected to
The driving chip, the controller are used for according to the displacement of the focusing position of the voice coil motor and the voice coil motor
Electric current-displacement magnitude relation calculates the input current for needing to input voice coil motor and is transferred to the driving chip.
A kind of energization motor automatic calibrating method, includes the following steps：
Fixed voltage is provided；
Determine that the voice coil motor needs the corresponding input current of displacement；
Fixed voltage is converted into corresponding voltage according to the input current signal, and corresponding voltage is converted into corresponding electricity
Stream；
The corresponding current is transferred to voice coil motor, driving voice coil motor is moved to specific position；
Voice coil motor is calibrated.
Wherein in an embodiment, the step of providing fixed voltage, is specially：
Automatic calibration machine platform is provided, the fixed voltage is exported by the automatic calibration machine platform.
Wherein in an embodiment, fixed voltage is converted to by corresponding voltage according to the input current signal, and will corresponding electricity
Pressure the step of being converted to corresponding current is specially：
Driving chip is provided, the driving chip is electrically connected to the automatic calibration machine platform, and the driving chip will be fixed
Voltage is converted to corresponding voltage, is reconverted into corresponding current.
Wherein in an embodiment, determine that the step of voice coil motor needs displacement corresponding input current specifically includes：
Obtain displacement when voice coil motor focusing；
Obtain electric current-displacement magnitude relation of voice coil motor；
The electric current of displacement and voice coil motor when being focused according to voice coil motor-displacement magnitude relation determines voice coil motor need
Want the corresponding input current of displacement.
This energization motor self-checking device and method, the fixed electricity that can be exported automatic calibration machine platform by driving chip
Pressure is converted to the corresponding voltage of displacement needed for voice coil motor, is reconverted into corresponding current and is transferred to voice coil motor, drives voice coil
Motor is moved to specific position, calibrates to voice coil motor, to realize the energization calibration of voice coil motor.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of energization motor self-checking device of the present invention；
Fig. 2 is electric current-displacement graph of relation of voice coil motor；
Fig. 3 is the structural decomposition diagram of the driving chip of energization motor self-checking device shown in Fig. 1；
Fig. 4 is the flow chart of energization motor automatic calibrating method of the present invention.
Specific embodiment
It is of the invention to reach the technical approach and effect that predetermined goal of the invention is taken further to illustrate, below in conjunction with
Accompanying drawings and embodiments, to a specific embodiment of the invention, structure, feature and its effect, detailed description is as follows.
As shown in Figure 1, the energization motor self-checking device of one embodiment of the invention includes automatic calibration machine platform 11 and electricity
It is connected to the driving chip 134 of automatic calibration machine platform 11, driving chip 134 is also electrically coupled to two connecting pins of voice coil motor 80
Son.Automatic calibration machine platform 11 is transferred to driving chip 134 for exporting fixed voltage, and by fixed voltage, and driving chip 134
Fixed voltage is converted into corresponding voltage according to the displacement of 80 focusing position of voice coil motor, and corresponding voltage is converted into corresponding electricity
Stream, driving chip 134 are also used to for corresponding current being transferred to voice coil motor 80 to drive the elastic slice of voice coil motor 80 to stretch, drive
Voice coil motor 80 is moved to predetermined position.
This energization motor self-checking device, the fixed electricity that can be exported automatic calibration machine platform 11 by driving chip 134
Pressure is converted to the corresponding voltage of displacement needed for voice coil motor, is reconverted into corresponding current and is transferred to voice coil motor, to realize sound
The energization of coil motor is calibrated.
Specifically, as shown in Fig. 2, being electric current-displacement graph of relation of voice coil motor, wherein L1 is voice coil motor
Electric current and displacement relation line ideally, L2 are electric current when voice coil motor is gradually moved into nearly burnt position from remote burnt position
With displacement relation curve, electric current and displacement relation song when L3 is gradually moved into remote burnt position from nearly burnt position for voice coil motor
Line.In the calibration of voice coil motor, need for imaging sensor to be placed on position corresponding with camera lens, then voice coil motor is driven to make
It is moved to focusing position, and in the horizontal position of the horizontal position of focusing position adjustment camera lens and voice coil motor, makes camera lens
Optical axis is overlapped with the central axis of imaging sensor, and tilts voice coil motor not relative to imaging sensor, this is image
It is imaged clearest, imaging sensor and camera lens is installed at this time.For camera lens, focusing position is determining, that is, at
As it is clearest when voice coil motor displacement should be it is determining, can be closed according to the displacement and electric current of input-displacement
It is that curve graph determines the input current for needing to input voice coil motor, by input current information input driving chip 134, driving chip
Fixed voltage can be converted to corresponding voltage according to the input current information input by 134, and corresponding voltage is converted to correspondence
Electric current.For example, the displacement in a focusing position voice coil motor 80 is 300 steps, electric current-displacement magnitude relation according to Fig.2,
Curve graph can determine the input current (for example, 80 milliamperes) of input voice coil motor 80, and driving chip 134 can be according to this
Input current converts the fixed voltage exported from automatic calibration machine platform 11.Specifically in the present embodiment, the work of driving chip 134
2.8V when voltage, automatic calibration machine platform 11 can directly export the fixed voltage of 2.8V, and driving chip 134 converts the fixed voltage
For corresponding voltage, and corresponding voltage is converted into corresponding current.It is appreciated that the electricity of the also exportable 5V of automatic calibration machine platform 11
Pressure, an also settable transforming circuit, is converted to 2.8V's for the voltage of 5V between automatic calibration machine platform 11 and driving chip 134
The fixed voltage is converted to corresponding voltage to driving chip 134, driving chip 134 by output after fixed voltage, and will corresponding electricity
Pressure is converted to corresponding current.In another embodiment, when the voltage that automatic calibration machine platform 11 exports is 5V, core will can also be driven
The working voltage design of piece 134 is 5V.
In the present embodiment, automatic calibration machine platform 11 is equipped with pad, and automatic calibration machine platform 11 is electrically connected to drive by pad
Dynamic chip 134.Generally, the fixed voltage that automatic calibration machine platform 11 exports is 5 volts.
In the present embodiment, also referring to Fig. 3, energization motor self-checking device further includes pinboard 15, driving chip
134 are set to pinboard 15.Specifically, as shown in figure 3, being integrated with driving chip 134, the first connector 132, on pinboard 15
Two connectors 136, the output terminal of automatic calibration machine platform 11 are electrically connected with the first connector 132, and driving chip 134 is electrically connected to
First connector 132 and the second connector 136.Specifically, driving chip 134 can be the chip of model FP5510E2.Driving
Chip 134 is electrically connected to the connection terminal of voice coil motor 80 by the second connector 136.
In the present embodiment, capacitor 138 is also integrated on pinboard 15, capacitor 138 is series at driving chip 134 and second and connects
It connects between device 136.It is appreciated that the first connector 132, driving chip 134, the second connector 136 and capacitor 138 can not also collect
At on pinboard 15, as long as realizing electrical connection therebetween.
In the present embodiment, driving chip 134 is electrically connected to voice coil motor 80 by connecting plate 139, and connecting plate 139 is equipped with
The location hole of two location holes, connecting plate 139 is corresponding with the connection terminal of voice coil motor 80, connecting plate 139 by location hole with
The connection terminal of voice coil motor 80 is electrically connected.
In the present embodiment, energization motor self-checking device further includes controller 17, and controller 17 is electrically connected to driving core
Piece 134.Specifically, the electric current of voice coil motor-displacement graph of relation is pre-stored in controller 17, and by the position of voice coil motor
Shifting amount input controller 17, controller 17 calculate the corresponding current for needing to input voice coil motor accordingly and are transferred to driving chip
134。
Referring to Fig. 4, the energization motor automatic calibrating method of one embodiment of the invention utilizes the above-mentioned automatic school of energization motor
Standard apparatus carries out comprising following steps：
S11 obtains electric current-displacement magnitude relation of voice coil motor 80.The electric current of voice coil motor 80-displacement magnitude relation can be pre-
It first measures, obtains electric current-displacement graph of relation of the voice coil motor 80.
S13 determines the corresponding input current of displacement when voice coil motor 80 is focused.Specifically, controller 17 can be passed through
Electric current-displacement magnitude relation of displacement and voice coil motor 80 when being focused according to voice coil motor 80 determines 80 needs of voice coil motor
The corresponding input current of displacement.
S15 provides fixed voltage.For example, the fixed voltage provided is 2.8V.Fixed voltage can pass through automatic calibration machine platform
11 outputs, the voltage of the also exportable 5V of automatic calibration machine platform 11 at this moment need to be between automatic calibration machine platform 11 and driving chip 134
One transforming circuit is set, and output is to driving chip 134 after which the voltage of 5V to be converted to the fixed voltage of 2.8V.
In another embodiment, when the voltage that automatic calibration machine platform 11 exports is 5V, the operating voltage of driving chip 134 can also be set
It is calculated as 5V.
Fixed voltage is converted to corresponding voltage according to the input current signal, and corresponding voltage is converted to correspondence by S17
Electric current.Specifically, fixed voltage can be converted into corresponding electricity by being electrically connected to the driving chip 134 of automatic calibration machine platform 11
Pressure, is reconverted into corresponding current.
Corresponding current is transferred to voice coil motor 80 by S19, and driving voice coil motor 80 is moved to specific position.Specifically, should
Specific position is focusing position, at this time imaging sensor imaging clearly.
S21 calibrates voice coil motor 80.Specifically camera lens and/or voice coil can be adjusted by motor self-checking device
The angle of motor relatively horizontal orientation is overlapped the optical axis of camera lens with the central axis of imaging sensor.
This energization motor automatic calibrating method, the fixed electricity that can be exported automatic calibration machine platform 11 by driving chip 134
Pressure is converted to the corresponding voltage of displacement needed for voice coil motor, is reconverted into corresponding current and is transferred to voice coil motor, drives voice coil
Motor is moved to specific position, calibrates to voice coil motor, to realize the energization calibration of voice coil motor.
The above is only presently preferred embodiments of the present invention, are not intended to limit the present invention in any form, although this
Invention has been disclosed in a preferred embodiment above, and however, it is not intended to limit the invention, any person skilled in the art,
It does not depart within the scope of technical solution of the present invention, when the technology contents using the disclosure above make a little change or are modified to equivalent
The equivalent embodiment of variation, but without departing from the technical solutions of the present invention, according to the technical essence of the invention to the above reality
Any simple modification, equivalent change and modification made by example are applied, all of which are still within the scope of the technical scheme of the invention.
Claims (10)
1. a kind of energization motor self-checking device, which is characterized in that including automatic calibration machine platform (11) and be electrically connected to described
The driving chip (134) of automatic calibration machine platform (11), the driving chip (134) are also electrically coupled to two of voice coil motor (80)
The fixed voltage is transferred to the driving for exporting fixed voltage by connection terminal, the automatic calibration machine platform (11)
Chip (134), the driving chip (134) are used for the fixed voltage according to the displacement of the voice coil motor focusing position
Corresponding voltage is converted to, and the corresponding voltage is converted into corresponding current, the driving chip (134) is also used to that electricity will be corresponded to
It spreads and is defeated by the voice coil motor (80).
2. energization motor self-checking device as described in claim 1, which is characterized in that on the automatic calibration machine platform (11)
Equipped with pad, the automatic calibration machine platform (11) is electrically connected to the driving chip (134) by pad.
3. energization motor self-checking device as described in claim 1, which is characterized in that the automatic calibration cartridge of energization motor
Setting further includes pinboard (15), and the driving chip (134) is set to the pinboard (15).
4. energization motor self-checking device as claimed in claim 3, which is characterized in that be integrated on the pinboard (15)
The driving chip (134), the first connector (132), the second connector (136), the output of the automatic calibration machine platform (11)
Terminal is electrically connected with first connector (132), and the driving chip (134) is electrically connected to first connector (132)
With second connector (136)；The driving chip (134) is electrically connected to the sound by second connector (136)
The connection terminal of coil motor (80).
5. energization motor self-checking device as described in claim 1, which is characterized in that the driving chip (134) passes through
Connecting plate (139) is electrically connected to the voice coil motor (80), and the connection there are two location hole is set on the connecting plate (139)
The location hole of plate (139) is corresponding with the connection terminal of the voice coil motor (80), and the connecting plate (139) passes through institute
Location hole is stated to be electrically connected with the connection terminal of the voice coil motor (80).
6. energization motor self-checking device as described in claim 1, which is characterized in that the automatic calibration cartridge of energization motor
Setting further includes controller (17), and the controller (17) is electrically connected to the driving chip (134), and the controller (17) is used for
It is calculated according to the electric current of the displacement of the focusing position of the voice coil motor (80) and the voice coil motor (80)-displacement magnitude relation
It needs to input the input current of voice coil motor out and is transferred to the driving chip (134).
7. a kind of energization motor automatic calibrating method, which is characterized in that include the following steps：
Fixed voltage is provided；
Determine that the voice coil motor (80) needs the corresponding input current of displacement；
Fixed voltage is converted into corresponding voltage according to the input current signal, and corresponding voltage is converted into corresponding current；
The corresponding current is transferred to voice coil motor (80), driving voice coil motor (80) is moved to specific position；
Voice coil motor is calibrated.
8. energization motor automatic calibrating method as claimed in claim 7, which is characterized in that the step of providing fixed voltage is specific
For：
It provides automatic calibration machine platform (11), the fixed voltage is exported by the automatic calibration machine platform (11).
9. energization motor automatic calibrating method as claimed in claim 8, which is characterized in that will be consolidated according to the input current signal
Constant voltage is converted to corresponding voltage, and the step of corresponding voltage is converted to corresponding current is specially：
It provides driving chip (134), the driving chip (134) is electrically connected to the automatic calibration machine platform (11), the driving
Fixed voltage is converted to corresponding voltage by chip (134), is reconverted into corresponding current.
10. energization motor automatic calibrating method as claimed in claim 7, which is characterized in that determine voice coil motor (80) needs
The step of displacement corresponding input current, specifically includes：
Obtain displacement when voice coil motor (80) focusing；
Obtain the electric current-displacement magnitude relation of voice coil motor (80)；
Electric current-displacement magnitude relation of displacement and voice coil motor (80) when being focused according to voice coil motor (80) determines voice coil horse
The corresponding input current of displacement is needed up to (80).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810943507.9A CN108873238B (en) | 2018-08-17 | 2018-08-17 | Automatic calibrating device and method for electrified motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810943507.9A CN108873238B (en) | 2018-08-17 | 2018-08-17 | Automatic calibrating device and method for electrified motor |
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| CN108873238A true CN108873238A (en) | 2018-11-23 |
| CN108873238B CN108873238B (en) | 2023-12-22 |
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| CN201810943507.9A Active CN108873238B (en) | 2018-08-17 | 2018-08-17 | Automatic calibrating device and method for electrified motor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112584136A (en) * | 2020-12-23 | 2021-03-30 | 上海艾为电子技术股份有限公司 | Position calibration module, calibration method, electronic device, calibration apparatus, and storage medium |
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| CN112584136A (en) * | 2020-12-23 | 2021-03-30 | 上海艾为电子技术股份有限公司 | Position calibration module, calibration method, electronic device, calibration apparatus, and storage medium |
| CN112584136B (en) * | 2020-12-23 | 2023-02-28 | 上海艾为电子技术股份有限公司 | Position calibration module, calibration method, electronic device, calibration apparatus, and storage medium |
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| CN108873238B (en) | 2023-12-22 |
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