CN207528883U - A kind of voice coil motor life-span test system of multi-cam module - Google Patents
A kind of voice coil motor life-span test system of multi-cam module Download PDFInfo
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- CN207528883U CN207528883U CN201721776026.0U CN201721776026U CN207528883U CN 207528883 U CN207528883 U CN 207528883U CN 201721776026 U CN201721776026 U CN 201721776026U CN 207528883 U CN207528883 U CN 207528883U
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Abstract
The utility model embodiment discloses a kind of voice coil motor life-span test system of multi-cam module, including testing host and multi-cam module；Multi-cam module includes multiple single camera modules, and each single camera module includes a voice coil motor；The data-signal driving voice coil motor movement that each single camera module is sent according to testing host；Testing host includes multiple power interfaces and a pair of of iic bus, and power interface of the power interface respectively with each single camera module is connected one by one, and the number of power interface is not less than the number of single camera module in multi-cam module；Iic bus is connected with SDA, SCL interface of each single camera module, to receive the data-signal of testing host transmission.Technical scheme is realized while is tested the service life of voice coil motor in multi-cam module, improves the testing efficiency in voice coil motor service life in multi-cam module.
Description
Technical field
The utility model embodiment is related to motor performance technical field of measurement and test, more particularly to a kind of multi-cam module
Voice coil motor life-span test system.
Background technology
As user is higher and higher to the quality requirement for being imaged picture, camera shooting, photographic equipment technology is forced to continue to develop, with
Obtain high quality, high-definition picture.
The optics quality of camera lens and the size of sensor determine the quality of camera imaging, and with picture pick-up device (such as
Mobile terminal) light, thin requirement, the optics quality of size sensor and camera lens is restricted.And the pixel of single camera exists
Toward facing bottleneck during eminence development, it is impossible to obtain high quality picture by pixel is improved, for example, for mobile phone camera and
Speech, 20,000,000 pixels have reached capacity.In addition, user, which does not need to mobile phone, realizes so high pixel, need instead faster
Focusing speed changes aperture soft focus, night bat noise reduction, improves picture element, improves the functions such as dynamic range, 3D modeling, optical zoom.And
By single camera, can not fully achieve even if assist some algorithms.Therefore, multi-cam comes into being.
VCM (Voice Coil Actuator, voice coil motor) is a kind of device for converting electrical energy into mechanical energy, and real
The movement of existing linear type and limited pivot angle.Magnetic pole in the magnetic field generated using the magnetic field from permanent-magnet steel and hot-wire coil conductor
Between interaction generate the device of regular movement.The operating status of motor directly affects the focusing work(of camera module
Can, the motor of operation exception is found in time or detects the service life of motor, advantageously ensures that the quality of entire camera module.
In more camera modules, a usual camera lens corresponds to a voice coil motor, in the prior art to multi-cam mould
It is a set of tool fixture once one camera module of test, if multi-cam when the service life of the voice coil motor of group is tested
In the module that includes it is more, it is necessary to expend long time, testing efficiency is low.
Therefore how to improve the testing efficiency in voice coil motor service life in multi-cam module, be those skilled in the art urgently
It solves the problems, such as.
Utility model content
The purpose of the utility model embodiment is to provide a kind of voice coil motor life-span test system of multi-cam module, real
Show while tested the service life of voice coil motor in multi-cam module, improve the survey in voice coil motor service life in multi-cam module
Try efficiency.
In order to solve the above technical problems, the utility model embodiment provides following technical scheme：
The utility model embodiment provides a kind of voice coil motor life-span test system of multi-cam module, including test
Mainboard and multi-cam module；
The multi-cam module includes multiple single camera modules, and each single camera module includes a voice coil horse
It reaches；The data-signal driving voice coil motor movement that each single camera module is sent according to the testing host；
The testing host includes multiple power interfaces and a pair of of iic bus, power interface respectively with each single camera mould
The power interface of group is connected one by one, and the number of power interface is not less than of single camera module in the multi-cam module
Number；Iic bus is connected with SDA, SCL interface of each single camera module, to receive the data-signal that the testing host is sent.
Optionally, it further includes：
Detection device, described detection device one end are connected with testing host, and one end is connected with the multi-cam module, use
The data-signal of the testing host transmission whether is received in each single camera module of detection.
Optionally, it further includes：
Malfunction indicator lamp, the malfunction indicator lamp are connected with the detection device, are detected for working as the detection device
When single camera module is not received by the data-signal that the testing host is sent, bright light instruction is carried out.
Optionally, it further includes：
Motor characteristics analytical equipment is connected with the multi-cam module, for according to driving IC output current value with
The camera lens amount of movement of corresponding single camera module draws voice coil motor characteristic curve, to judge the operation shape of voice coil motor
State.
Optionally, it further includes：
Display, the display is connected with the multi-cam module and the motor characteristics analytical equipment, for reality
When show the operating status of voice coil motor and voice coil motor characteristic curve in each single camera module.
Optionally, it further includes：
Alarm is connected with the motor characteristics analytical equipment, for being divided according to current voice coil motor operating status
Grade early warning.
The utility model embodiment provides a kind of voice coil motor life-span test system of multi-cam module, including test
Mainboard and multi-cam module；Multi-cam module includes multiple single camera modules, and each single camera module includes one
A voice coil motor；The data-signal driving voice coil motor movement that each single camera module is sent according to testing host；Testing host
Including multiple power interfaces and a pair of of iic bus, power interface of the power interface respectively with each single camera module is connected one by one
It connects, the number of power interface is not less than the number of single camera module in multi-cam module；Iic bus and each single camera mould
SDA, SCL interface of group are connected, to receive the data-signal of testing host transmission.
The advantages of technical solution that the application provides, is, by setting multiple power interfaces and a pair on testing host
Iic bus so that testing host can connect multiple single camera modules simultaneously, and testing host is by iic bus simultaneously to more
A single camera module transmission data signal, the multiple each single camera module voice coil motor movements of driving, realizes while to each
The motor of single camera module carries out life test；The service life of voice coil motor in multi-cam module is realized while tested, is had
Solving for effect tests the service life to single camera module voice coil motor one by one in the prior art, greatly shortens survey
Total time-consuming is tried, improves the testing efficiency in voice coil motor service life in multi-cam module.
Description of the drawings
For the clearer technical solution for illustrating the utility model embodiment or the prior art, below will to embodiment or
Attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
Some embodiments of the utility model, for those of ordinary skill in the art, without creative efforts,
It can also be obtained according to these attached drawings other attached drawings.
One kind that Fig. 1 provides the voice coil motor life-span test system of multi-cam module for the utility model embodiment is specific
Embodiment structure chart；
Fig. 2 provides a kind of specific embodiment structure chart of testing host for the utility model embodiment；
Fig. 3 provides a kind of specific embodiment structure chart of single camera module for the utility model embodiment；
Fig. 4 provides another specific embodiment structure chart of single camera module for the utility model embodiment；
Fig. 5 provides another tool of the voice coil motor life-span test system of multi-cam module for the utility model embodiment
Body embodiment structure chart.
Specific embodiment
In order to which those skilled in the art is made to more fully understand the utility model, below in conjunction with the accompanying drawings and it is embodied
The utility model is described in further detail for mode.Obviously, described embodiment is only the utility model part
Embodiment, instead of all the embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not doing
Go out all other embodiments obtained under the premise of creative work, shall fall within the protection scope of the present invention.
Term " first ", " second ", " third " " in the description and claims of this application and above-mentioned attached drawing
Four " etc. be for distinguishing different objects rather than for describing specific sequence.In addition term " comprising " and " having " and
Their any deformations, it is intended that cover non-exclusive include.Such as contain the process of series of steps or unit, method,
The step of system, product or equipment are not limited to list or unit, but the step of may include not listing or unit.
After the technical solution of the utility model embodiment is described, detailed description below the application's is various unrestricted
Property embodiment.
Referring first to Fig. 1, Fig. 1 is the voice coil motor life test of multi-cam module that the utility model embodiment provides
A kind of specific embodiment structure chart of system, the utility model embodiment may include the following contents：
The voice coil motor life-span test system of multi-cam module may include testing host 11 and multi-cam module 12；
Multi-cam module includes multiple single camera modules, and each single camera module includes a voice coil motor；
The data-signal driving voice coil motor movement that each single camera module is sent according to testing host.Specifically, testing host can be sent out
Data-signal is sent to give the continuous output current signal driving voice coil motor movements of Driver IC, Driver IC.
Testing host includes multiple power interfaces and a pair of of iic bus, power interface respectively with each single camera module
Power interface is connected one by one, and the number of power interface is identical not less than the number of single camera module in multi-cam module；
Iic bus is connected with SDA, SCL interface of each single camera module, to receive the data-signal of testing host transmission.
The life test of camera module voice coil motor is communicated by IIC for testing host 11 and constantly repeats to give single camera mould
The Driver IC of group send order, the process of the continuous output current signal driving voice coil motor movements of Driver IC.At this
In the process, testing host does not need to the Driver IC feedback response signals of camera module, and Driver IC receive signal
Corresponding current signal driving module VCM movements can be exported.It is (multiple singly to take the photograph that a pair of of iic bus can connect multiple slaves
As head mould group), all it is the information of snoopy test mainboard on hardware no matter what the address of slave is, as long as mailing address meets,
The data-signal that testing host transmits can be received.Therefore, a set of testing host can give multiple addresses the same list simultaneously
Camera module (slave) transmission data realizes the function of driving multiple single camera module VCM simultaneously.
It should be noted that the number of power interface is also smaller than the sum of single camera module in multi-cam module,
But the number of power interface is not less than 2.For example, when multi-cam module includes 3 single camera modules, electricity
Source interface can be 2, can equally shorten the total time-consuming of test, so as to promote testing efficiency.
The utility model embodiment provide technical solution in, by set on testing host multiple power interfaces and
A pair of of iic bus so that testing host can connect multiple single camera modules simultaneously, testing host by iic bus simultaneously
To multiple single camera module transmission data signals, the multiple each single camera module voice coil motor movements of driving realize simultaneously
Life test is carried out to the motor of each single camera module；Realize while test the longevity of voice coil motor in multi-cam module
Life effectively solves and tests the service life to single camera module voice coil motor one by one in the prior art, improves more
The testing efficiency in voice coil motor service life in camera module.
For the ease of those skilled in the art it is clearer, understand technical solution provided herein, the application also carries
Specific example has been supplied, Fig. 2, Fig. 3 and Fig. 4 has been please referred to, specifically may include：
Based on the circuit diagram of degree letter tooling motherboard design, circuit structure diagrams of the Fig. 2 for testing host, multi-cam mould
Group includes multiple single camera modules, and the first single camera module (shown in Fig. 3) total interface and testing host all connect, can be with
Whether detection module image is normal in real time, and the structure chart of remaining single camera module is as shown in Figure 4, it is only necessary to connect power supply
Mouth, SDA, SCL interface are connected to the power interface of testing host and IIC signal bus, and testing host can be with each single camera
The Driver IC communications of module, drive corresponding voice coil motor to be moved, and voice coil in multi-cam module is tested simultaneously to realize
The service life of motor shortens test total time-consuming, improves the testing efficiency in voice coil motor service life in multi-cam module.
Based on above-described embodiment, present invention also provides another embodiment, referring to Fig. 5, multi-cam module
Voice coil motor life-span test system may include testing host 51, multi-cam module 52, detection device 53, malfunction indicator lamp 54,
Motor characteristics analytical equipment 55, display 56 and alarm 57.In the voice coil motor life-span test system of multi-cam module
In different embodiments, detection device 53, malfunction indicator lamp 54, motor characteristics analytical equipment 55, display 56 and alarm 57
Arbitrary combination can be carried out, the application does not do this any restriction.
53 one end of detection device is connected with testing host 51, and the other end is connected with multi-cam module 52, more for detecting
Whether each single camera module receives the data-signal of the transmission of testing host 51 in camera module 52.
Malfunction indicator lamp 54 is connected with detection device 53, detects in multi-cam module 52 for working as detection device 53 and deposits
When single camera module is not received by the data-signal of testing host transmission, bright light instruction is carried out.
Malfunction indicator lamp can be for one or multiple, and when for multiple indicating fault, each malfunction indicator lamp with taking the photograph more
As single camera module one-to-one correspondence each in head mould group 52, single camera mould can directly be positioned by the instruction of malfunction indicator lamp
Group is conducive to find failure in time, improves testing efficiency and accuracy rate.
Motor characteristics analytical equipment 55 is connected with multi-cam module 52, for according to the defeated of driving IC (Driver IC)
Go out the camera lens amount of movement of current value and corresponding single camera module, voice coil motor characteristic curve is drawn, by analyzing voice coil
Motor characteristics curve judges the operating status of current voice coil motor.
Display 56 can be connected with multi-cam module 52 and motor characteristics analytical equipment 55 respectively, each for real-time display
The operating status of voice coil motor and voice coil motor characteristic curve in single camera module.In order to which user or staff supervise
The operation of each voice coil motor is controlled, finds the voice coil motor of failure in time, ensures the quality of entire camera module.
Alarm 57 is connected with motor characteristics analytical equipment 55, for being classified according to current voice coil motor operating status
Early warning.
The operating status of voice coil motor may include failure, life termination, service life will terminate, normal operation.When voice coil horse
Up to break down, life termination and service life will terminate and carry out alarm, each state is with different volumes or alternative sounds
It distinguishes, so that the operating status of user or staff according to alarm accurate judgement voice coil motor.Be conducive to find in time
The voice coil motor of failure ensures the quality of entire camera module.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with it is other
The difference of embodiment, just to refer each other for same or similar part between each embodiment.For embodiment disclosed device
For, since it is corresponded to the methods disclosed in the examples, so description is fairly simple, related part is said referring to method part
It is bright.
Professional further appreciates that, with reference to each exemplary unit of the embodiments described herein description
And algorithm steps, can be realized with the combination of electronic hardware, computer software or the two, in order to clearly demonstrate hardware and
The interchangeability of software generally describes each exemplary composition and step according to function in the above description.These
Function is performed actually with hardware or software mode, specific application and design constraint depending on technical solution.Profession
Technical staff can realize described function to each specific application using distinct methods, but this realization should not
Think beyond the scope of the utility model.
A kind of voice coil motor life-span test system of multi-cam module provided by the utility model is carried out above
It is discussed in detail.Specific case used herein is expounded the principle and embodiment of the utility model, implements above
The explanation of example is merely used to help understand the method and its core concept of the utility model.It should be pointed out that for the art
Those of ordinary skill for, under the premise of the utility model principle is not departed from, can also to the utility model carry out it is several
Improvement and modification, these improvement and modification are also fallen into the protection domain of the utility model claims.
Claims (6)
1. a kind of voice coil motor life-span test system of multi-cam module, which is characterized in that including testing host and more camera shootings
Head mould group；
The multi-cam module includes multiple single camera modules, and each single camera module includes a voice coil motor；
The data-signal driving voice coil motor movement that each single camera module is sent according to the testing host；
The testing host includes multiple power interfaces and a pair of of iic bus, power interface respectively with each single camera module
Power interface is connected one by one, and the number of power interface is not less than the number of single camera module in the multi-cam module；
Iic bus is connected with SDA, SCL interface of each single camera module, to receive the data-signal that the testing host is sent.
2. the voice coil motor life-span test system of multi-cam module according to claim 1, which is characterized in that also wrap
It includes：
Detection device, described detection device one end are connected with testing host, and one end is connected with the multi-cam module, for examining
Survey whether each single camera module receives the data-signal that the testing host is sent.
3. the voice coil motor life-span test system of multi-cam module according to claim 2, which is characterized in that also wrap
It includes：
Malfunction indicator lamp, the malfunction indicator lamp are connected with the detection device, detect for working as the detection device and singly take the photograph
When being not received by the data-signal that the testing host is sent as head mould group, bright light instruction is carried out.
4. the voice coil motor life-span test system of the multi-cam module according to claims 1 to 3 any one, feature
It is, further includes：
Motor characteristics analytical equipment is connected with the multi-cam module, for the output current value according to driving IC and relatively
The camera lens amount of movement for the single camera module answered draws voice coil motor characteristic curve, to judge the operating status of voice coil motor.
5. the voice coil motor life-span test system of multi-cam module according to claim 4, which is characterized in that also wrap
It includes：
Display, the display is connected with the multi-cam module and the motor characteristics analytical equipment, for showing in real time
Show the operating status of voice coil motor and voice coil motor characteristic curve in each single camera module.
6. the voice coil motor life-span test system of multi-cam module according to claim 5, which is characterized in that also wrap
It includes：
Alarm is connected with the motor characteristics analytical equipment, pre- for according to current voice coil motor operating status be classified
It is alert.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721776026.0U CN207528883U (en) | 2017-12-14 | 2017-12-14 | A kind of voice coil motor life-span test system of multi-cam module |
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| CN201721776026.0U CN207528883U (en) | 2017-12-14 | 2017-12-14 | A kind of voice coil motor life-span test system of multi-cam module |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109495737A (en) * | 2018-12-07 | 2019-03-19 | 重庆市天实精工科技有限公司 | A kind of voice coil motor life-span test system |
| CN112788328A (en) * | 2020-12-17 | 2021-05-11 | 昆山丘钛光电科技有限公司 | Camera module reliability testing device |
-
2017
- 2017-12-14 CN CN201721776026.0U patent/CN207528883U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109495737A (en) * | 2018-12-07 | 2019-03-19 | 重庆市天实精工科技有限公司 | A kind of voice coil motor life-span test system |
| CN109495737B (en) * | 2018-12-07 | 2020-09-08 | 重庆市天实精工科技有限公司 | Voice coil motor life test system |
| CN112788328A (en) * | 2020-12-17 | 2021-05-11 | 昆山丘钛光电科技有限公司 | Camera module reliability testing device |
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