CN205581272U - VCM motor floats high testing arrangement - Google Patents

Abstract

The utility model discloses a VCM motor floats high testing arrangement, through with VCM motor fixed position on test fixture, through adding reverse current in the coil of DC power supply control box to the VCM motor, the stroke and the slope data of camera lens on the radium -shine distancer of the rethread collection VCM motor, whether can judge and laminate closely between lens barrel and the base of VCM motor, it is high bad that the reverse test of VCM can examine out the motor to float. Its principle as follows: closely laminating between the lens barrel of normal VCM motor and the base, adding reverse current, the camera lens does not have the change of stroke and slope, have stroke and slope to change if reverse current is added to the VCM motor, it is high bad to judge then that this VCM motor floats. The utility model discloses VCM motor floats high testing arrangement simple structure, convenient operation.

Description

VCM motor floating height test device

Technical field

This utility model relates to mobile phone camera module technical field, is specifically related to one Plant VCM motor floating height test device.

Background technology

VCM (Voil Coil Motor) motor, is also called voice coil motor, is originally intended to Speaker produces vibration sounding, the existing one-tenth producing auto-focusing for promoting camera lens to move As module.VCM motor is the important component part in photographic head module, and it is not only determined Determine auto-focusing (AF) ability of photographic head module, be also to judge one simultaneously The critical component that photographic head module performance is excellent.It is thus typically necessary in advance to VCM The performance of motor is tested, to get rid of bad VCM mono-product inflow product volume production mistake Cheng Zhong, it is ensured that the product quality of photographic head module, but, at present, to VCM horse The performance test reached is only limitted to the starting current to VCM motor and linearly falls characteristic after rise Carry out test evaluation, lack and VCM motor is floated high test evaluation.VCM motor floats Height refers to if fitting bad between the barrel of VCM motor and base, it will impact Relative altitude between camera lens and barrel and inclination, cause meeting camera lens and mirror The fixing requirement of head cylinder.

Summary of the invention

In order to solve above-mentioned technical problem, the utility model proposes a kind of VCM motor and float High test device, can verify that motor is floating high bad, can verify VCM motor The bad product of barrel and base laminating；And simple in construction, easy to operate.

The technical solution of the utility model is achieved in that

A kind of VCM motor floating height test device, including for stationary positioned VCM motor Measurement jig, for VCM motor add reverse current DC power control Case, for gather on VCM motor barrel install camera lens stroke and tilt number According to radium-shine diastimeter, carry out Treatment Analysis for data that radium-shine diastimeter is gathered Controller and the display of result after the display controller Treatment Analysis.

Further, described measurement jig includes base, is fixedly arranged on described base Test board with can relative described base turning be fastened on the upset on described test board Plate, described VCM motor is positioned on described returning face plate.

The beneficial effects of the utility model are: this utility model provides a kind of VCM motor Floating height test device, by being fixed positioned on measurement jig by VCM motor, passes through DC power control case adds reverse current in the coil of VCM motor；Pass through radium again Penetrate diastimeter and gather stroke and the tilt data of camera lens on VCM motor；May determine that Whether fit between barrel and the base of VCM motor closely, VCM negative testing can To verify that motor is floating high bad.Its principle is as follows: the barrel of normal VCM motor And fitting tightly between base, add reverse current, camera lens does not have stroke and inclination Change；If VCM motor adds reverse current stroke and tilt variation, then sentence This VCM motor fixed is floating high bad.This utility model VCM motor floating height test device knot Structure is simple, easy to operate.

Accompanying drawing explanation

Fig. 1 is this utility model VCM motor floating height test apparatus structure schematic diagram；

Fig. 2 is VCM motor negative testing wiring schematic diagram in this utility model；

In conjunction with accompanying drawing, make the following instructions:

1 measurement jig 2 VCM motor

21 barrel 22 bases

The 3 radium-shine diastimeters of DC power control case 4

5 display

Detailed description of the invention

In order to be more clearly understood that technology contents of the present utility model, especially exemplified by following Embodiment describes in detail, its purpose be only that be best understood from content of the present utility model and Unrestricted protection domain of the present utility model.

As depicted in figs. 1 and 2, a kind of VCM motor floating height test device, including using In the measurement jig 1 of stationary positioned VCM motor, for adding instead to VCM motor 2 To the DC power control case 3 of electric current, it is used for gathering on VCM motor barrel peace The stroke of camera lens of dress and the radium-shine diastimeter 4 of tilt data, for radium-shine range finding The data of instrument collection carry out the controller of Treatment Analysis and process for display controller The display 5 of the result after analysis.So, by DC power control case to VCM The coil of motor adds reverse current；VCM motor is gathered again by radium-shine diastimeter The stroke of upper camera lens and tilt data；May determine that the barrel 21 of VCM motor And whether fit between base 22 closely, VCM negative testing can verify motor Floating high bad.Its principle is as follows: tight between barrel and the base of normal VCM motor Closely connected conjunction, adds reverse current, and camera lens does not have the change of stroke and inclination；If VCM motor adds reverse current stroke and tilt variation, then judge this VCM motor Floating high bad.This utility model VCM motor floating height test apparatus structure is simple, operation Convenient.

Preferably, described measurement jig includes base, the survey being fixedly arranged on described base Test plate (panel) with can relative described base turning be fastened on the upset on described test board Plate, described VCM motor is positioned on described returning face plate.

VCM motor floats high method of testing: first, by the VCM motor with camera lens It is fixed positioned on measurement jig；Then, by DC power control case, to VCM The coil of motor adds reverse current；Subsequently, gathered by radium-shine diastimeter The stroke of camera lens and tilt data on VCM motor；Then, by controller to radium-shine The camera lens stroke of diastimeter collection and tilt data carry out Treatment Analysis, finally, pass through Result after controller Treatment Analysis is presented by display；If VCM motor adds Enter that reverse current is destroked and tilt variation, then judge that this VCM motor is qualified；If VCM motor adds reverse current stroke and tilt variation, then judge this VCM motor Floating high bad.

Above example is referring to the drawings, carries out preferred embodiment of the present utility model Describe in detail.Those skilled in the art is by carrying out various forms to above-described embodiment On amendment or change, but without departing substantially from essence of the present utility model in the case of, all fall Within protection domain of the present utility model.

Claims (2)

1. a VCM motor floating height test device, it is characterised in that: include for The measurement jig (1) of stationary positioned VCM motor, for adding to VCM motor (2) Enter the DC power control case (3) of reverse current, be used for gathering VCM motor camera lens The stroke of camera lens installed on cylinder and the radium-shine diastimeter (4) of tilt data, for right The data of radium-shine diastimeter collection carry out the controller of Treatment Analysis and for showing control The display (5) of the result after device Treatment Analysis processed.

VCM motor the most according to claim 1 floating height test device, it is special Levy and be: described measurement jig include base, the test board being fixedly arranged on described base, With can relative described base turning be fastened on the returning face plate on described test board, described VCM motor is positioned on described returning face plate.