CN108681029A - Lens drive motor, camera and mobile terminal apparatus - Google Patents
Lens drive motor, camera and mobile terminal apparatus Download PDFInfo
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- CN108681029A CN108681029A CN201810880197.0A CN201810880197A CN108681029A CN 108681029 A CN108681029 A CN 108681029A CN 201810880197 A CN201810880197 A CN 201810880197A CN 108681029 A CN108681029 A CN 108681029A
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- Prior art keywords
- hall
- drive motor
- lens drive
- shell
- mask segments
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- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims abstract description 39
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- WTFXARWRTYJXII-UHFFFAOYSA-N iron(2+);iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[Fe+2].[Fe+3].[Fe+3] WTFXARWRTYJXII-UHFFFAOYSA-N 0.000 claims 1
- 230000000694 effects Effects 0.000 description 20
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 10
- 238000005058 metal casting Methods 0.000 description 5
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Classifications
-
- 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
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B13/32—Means for focusing
- G03B13/34—Power focusing
-
- 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
- H02K41/0356—Lorentz force motors, e.g. voice coil motors moving along a straight path
Abstract
The present invention provides a kind of lens drive motor, camera and mobile terminal apparatus.Wherein, lens drive motor includes shell, lens supports body, coil and magnetite component, and coil is around being located on lens supports body and being arranged inside the shell, and magnetite component is arranged between lens supports body and shell, and lens drive motor further includes：Hall chip, Hall chip are arranged on pcb board；Hall magnet, hall magnet are arranged on lens supports body on position corresponding with Hall chip；Hall gasket, Hall gasket are arranged between hall magnet and lens supports body, and Hall gasket includes back mask segments and top barrier section, and top barrier section is stretched out from the top of back mask segments to pcb board to cover the top of hall magnet.The present invention solves the problems, such as lens drive motor in the prior art there are driving forces to be difficult to take into account with linear stable.
Description
Technical field
The present invention relates to apparatus for making a video recording technical fields, eventually in particular to a kind of lens drive motor, camera and movement
End device.
Background technology
Due to the lightening construction of mobile terminal apparatus common demands of mobile phone etc., to the motor under set appearance and size
Design proposes requirements at the higher level, and the motor of slimming is difficult to generally meet various performance requirements.One of wherein apparent problem is,
Motor design is thinner, and the driving force that camera lens moves often is driven also to seem more insufficient.
On the other hand, to obtain the image taking effect of high-resolution, to the pick-up lens mounted such as mobile phone and camera
It is required that also higher and higher, at present to compared with macro lens being to obtain HD image relatively directly and effective mode in camera configuration.
It is well known that the driving force requirement of driving camera lens needed for the camera lens carried is bigger also can be higher.However, before mobile phone slimming
It puts, the motor research and development of large driving force suffer from certain limitation, it is difficult to effectively by greater weight lens driving to ideal
Position fruit, eventually affect the imaging effect of image.
In closed loop lens drive motor, pass through " the Hall being embedded on " Hall chip " on pcb board and lens supports body
Magnetite " mutually incudes, and by the magnetic field power variation generated during motor energization start, can calculate and detect that camera lens is current
Position.Apply set electric current to motor, can reach purpose that is quick, precisely focusing.This is specific to closed loop motor
Position feedback system is different from the function of conventional motor.To avoid causing hall magnet unfavorable interference effect, selected in shell
Low magnetic conductive material is preferentially selected when material, on the one hand can be ensured that the closed loop feedback control between Hall chip and hall magnet is in and be arrived
Best available state；On the other hand, when print adds a constant current, motor stroke is since by External force interference, operation not may be at
Ideal plateau shows print plus the motor travel relationships of electric current and corresponding position point, you can keep its motor operation
Linear condition tends to consistent favo(u)red state of coincideing with theoretical linear value.However, using the sheathing material of low magnetic conductivity but to driving
The magnetic field of dynamic magnetite component is difficult to best every magnetic screen, is difficult to perform to ultimate attainment effect so as to cause motor drive power,
Motor high thrust object tape is centainly hindered.As above known to analysis, if one-sided consider to increase motor thrust and height is taken to lead
Magnetic material shell, then again can because sheathing material itself characteristic to hall magnet caused by stronger attractions interfere, hall magnet exists
Always unstable shell attraction is in operational process influences state, influences the linear stationarity of motor, finally gives horse
Up to the negative effect brought in terms of characteristic.
It follows that lens drive motor in the prior art has that driving force is difficult to take into account with linear stable.
Invention content
The main purpose of the present invention is to provide a kind of lens drive motor, camera and mobile terminal apparatus, existing to solve
The problem of being difficult to take into account with linear stable with the presence of the lens drive motor driving force in technology.
To achieve the goals above, according to an aspect of the invention, there is provided a kind of lens drive motor, including it is outer
Shell, lens supports body, coil and magnetite component, around being located on lens supports body and being arranged inside the shell, magnetite component is set coil
It sets between lens supports body and shell, lens drive motor further includes：Hall chip, Hall chip are arranged on pcb board；Suddenly
That magnetite, hall magnet are arranged on lens supports body on position corresponding with Hall chip；Hall gasket, Hall gasket are set
It sets between hall magnet and lens supports body, and Hall gasket includes back mask segments and top barrier section, top barrier
Section is stretched out from the top of back mask segments to pcb board to cover the top of hall magnet.
Further, Hall gasket further includes：Bottom shield section, bottom shield section is from the bottom of back mask segments to PCB
Plate is stretched out to cover the bottom of hall magnet；And/or side mask segments, side mask segments are from the side of back mask segments to PCB
Plate is stretched out to cover the side of hall magnet.
Further, at least one of top barrier section, bottom shield section and side mask segments are bending and moldings.
Further, Hall gasket includes bottom shield section and side mask segments, and side mask segments are two, back screen
Section, bottom shield section and side mask segments are covered to be integrally formed to surround the cavity for accommodating hall magnet.
Further, the area of back mask segments is more than projected area of the hall magnet in the mask segments of back, and suddenly
In the side direction of your magnetite, back mask segments are reserved with ampleness mask segments.
Further, one group of inside sidewalls being oppositely arranged in shell are arranged in magnetite component, and pcb board is arranged in shell
The inside of one of another group of side wall being oppositely arranged.
Further, magnetite component includes two sub- magnetites in bending-type structure.
Further, Hall gasket is made of high magnetic conductive material.
Further, Hall gasket is made of SPCC or SUS materials.
Further, the entirety of shell, at least shell corresponds to the part of magnetite component or the top surface of at least shell is that height is led
Made of magnetic material.
Further, the entirety of shell, at least shell correspond to the part of magnetite component or the top surface of at least shell be SUS or
Made of SPCC materials.
Further, hall magnet is that quadrupole magnetizes magnetite, and the middle part of hall magnet is with no magnetic area.
According to another aspect of the present invention, a kind of camera, including above-mentioned lens drive motor are provided.
According to another aspect of the present invention, a kind of mobile terminal apparatus, including above-mentioned camera are provided.
Further, mobile terminal apparatus includes at least one of mobile phone, mobile information terminal and laptop.
It applies the technical scheme of the present invention, around being located on lens supports body and being arranged inside the shell, magnetite component is set coil
It sets between lens supports body and shell, Hall chip is arranged on pcb board, and hall magnet setting is on lens supports body and suddenly
On your the corresponding position of chip, Hall gasket is arranged between hall magnet and lens supports body, and Hall gasket includes the back of the body
Portion's mask segments and top barrier section, top barrier section are stretched out from the top of back mask segments to pcb board to cover hall magnet
Top.
In this way, by the way that top barrier section is arranged on Hall gasket so that the top of hall magnet can be effectively covered,
It avoids shell from generating interference to the top magnetic field of hall magnet, improves the induction reliability of hall magnet and Hall chip, carry
The feedback accuracy for the lens location detection unit that high hall magnet, Hall chip, pcb board are constituted, to ensure that lens drive
The action accuracy of dynamic motor.Just because of the Hall gasket provided with above structure, shell is just reduced to hall magnet
It influences, such shell may be selected by the manufacture of high permeability material, to reduce the leakage field of lens drive motor, be conducive to be promoted
Magnetic field intensity can greatly increase the driving force of motor so that can generate larger driving force under the function of current of very little, have
Conducive to reduction energy consumption, in addition, since magnetic field intensity is effectively promoted, thus magnetic field component can be designed more light
It is thin, and then more frivolous lens drive motor can be designed, improve aesthetics.
Description of the drawings
The accompanying drawings which form a part of this application are used to provide further understanding of the present invention, and of the invention shows
Meaning property embodiment and its explanation are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 shows the explosive view of lens drive motor in one embodiment of the invention；
Fig. 2 shows the internal structure schematic diagrams of the lens drive motor in Fig. 1；
Fig. 3 shows the connection relationship diagram of Hall gasket in Fig. 1, hall magnet and lens supports body；
Fig. 4 shows the connection relationship diagram of lower spring in Fig. 1, coil, lens supports body and pedestal；
Fig. 5 shows the position relationship schematic diagram of magnetite component and shell, pcb board in Fig. 1；
Fig. 6 shows the position relationship schematic diagram of magnetite component and Hall gasket, hall magnet, pcb board in Fig. 1；
Fig. 7 shows the position relationship schematic diagram of magnetite component and pcb board in Fig. 1；
Fig. 8 shows the structural schematic diagram of the pedestal in Fig. 1；
Fig. 9 shows the structural schematic diagram of the Hall gasket in Fig. 1；
Figure 10 shows the connection relationship diagram of Hall gasket and hall magnet in Fig. 9；
Figure 11 shows the structural schematic diagram of Hall gasket in second embodiment of the invention；
Figure 12 shows the connection relationship diagram of Hall gasket and hall magnet in Figure 11；
Figure 13 shows the structural schematic diagram of Hall gasket in third embodiment of the invention；
Figure 14 shows the connection relationship diagram of Hall gasket and hall magnet in Figure 13；
Figure 15 shows the structural schematic diagram of Hall gasket in the 4th embodiment of the invention；
Figure 16 shows the connection relationship diagram of Hall gasket and hall magnet in Figure 15.
Wherein, above-mentioned attached drawing includes the following drawings label：
10, shell；20, lens supports body；25, cord is limited；30, coil；40, magnetite component；50, upper spring；60, under
Spring；70, pedestal；71, center evacuation opening；72, dust ring；81, notch section；82, lug boss；90, frame；92, pcb board；
93, hall magnet；931, without magnetic area；932, the poles N；933, the poles S；94, Hall chip；95, capacitance；96, Upper gasket；97, suddenly
That gasket；971, back mask segments；972, top barrier section；973, bottom shield section；974, side mask segments；975, ampleness screen
Cover section.
Specific implementation mode
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
It should be pointed out that unless otherwise specified, all technical and scientific terms used in this application have and the application
The normally understood identical meanings of person of an ordinary skill in the technical field.
In the present invention, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower, top, bottom " is typically needle
For direction shown in the drawings, or for component itself is on vertical, vertical or gravity direction；Equally
Ground for ease of understanding and describes, and " inside and outside " refers to the inside and outside of the profile relative to each component itself, but the above-mentioned noun of locality is not
For limiting the present invention.
In order to solve the problems, such as that lens drive motor driving in the prior art is hypodynamic, the present invention provides a kind of lens
Drive motor, camera and mobile terminal apparatus.Wherein, there is camera following lens drive motors, mobile terminal apparatus to have
The camera.
Optionally, mobile terminal apparatus includes at least one of mobile phone, mobile information terminal and laptop.
Embodiment one
As shown in Figures 1 to 10, lens drive motor includes shell 10, lens supports body 20, coil 30 and magnetite component
40, coil 30 around being located on lens supports body 20 and be arranged in shell 10, the setting of magnetite component 40 lens supports body 20 with
Between shell 10.Lens drive motor further includes Hall chip 94, hall magnet 93 and Hall gasket 97, and Hall chip 94 is arranged
On pcb board 92；Hall magnet 93 is arranged on lens supports body 20 on position corresponding with Hall chip 94；Hall gasket
97 are arranged between hall magnet 93 and lens supports body 20, and Hall gasket 97 includes back mask segments 971 and top screen
Section 972 is covered, top barrier section 972 is stretched out from the top of back mask segments 971 to pcb board 92 to cover the top of hall magnet 93
Portion.
In this way, by the way that top barrier section 972 is arranged on Hall gasket 97 so that the top of hall magnet 93 can be had
Effect covering avoids shell 10 from generating interference to the top magnetic field of hall magnet 93, improves hall magnet 93 and Hall chip 94
Induction reliability, improve hall magnet 93, Hall chip 94, pcb board 92 constitute lens location detection unit feedback
Precision, to ensure that the action accuracy of lens drive motor.Just because of the Hall gasket 97 provided with above structure,
Influence of the shell 10 to hall magnet 93 is reduced, such shell 10 may be selected by the manufacture of high permeability material, to reduce
The leakage field of lens drive motor is conducive to promote magnetic field intensity, can greatly increase the driving force of motor so that in the electric current of very little
Effect is lower can to generate larger driving force, advantageously reduce energy consumption, in addition, since magnetic field intensity is effectively promoted, because
And can be by the more frivolous of magnetic field component design, and then more frivolous lens drive motor can be designed, it improves beautiful
Property.
The top of the entirety of shell 10 in the present invention, at least part of the correspondence magnetite of shell 10 component 40 or at least shell 10
Face is made of high magnetic conductive material.The present invention at the back side of hall magnet 93 by importing a kind of new structural Hall gasket
97, baffle is subject to the magnetic field of hall magnet 93.After shielding, the material of shell 10 can be made by original " low magnetic conductivity
Material " is used instead as " high magnetic conductivity material ".In this way, being both avoided that high magnetic conductivity material to magnetic interference caused by hall magnet 93, together
When greatly promote the thrust performance of motor again, tests prove that, thrust can promote 25% on the original basis.
Optionally, the entirety of shell 10, at least shell 10 correspond to the part of magnetite component 40 or the top surface of at least shell 10
It is made of SUS or SPCC materials.Before shielding, the material of shell 10 is SUS305 materials.After shielding, the material of shell 10 is
SUS400 series or SPCC materials.SPCC materials have the function of anti-leakage field, can also antistatic, to magnetite component 40 have very
Protective effect well is conducive to improve the magnetic field intensity between magnetite component 40 and coil 30, increases the driving force of motor, and at
This is relatively low.It should be noted that shell 10 is not limited only to SPCC or SUS materials, it is right as long as disclosure satisfy that the performance of SPCC materials
Leakproof magnetic property plays positive effect, all can be used as the row of the material object selected by the shell 10 of the present invention.
Hall gasket 97 in the present invention is made of high magnetic conductive material.
Optionally, Hall gasket 97 is made of SPCC or SUS materials.Still optionally further, Hall gasket 97 is
Made of SUS400 series material or SPCC materials.Similarly, other Hall gaskets 97 that disclosure satisfy that shielding requirements material
It can select, all can be used as the row of the material object selected by the Hall gasket 97 of the present invention.
Optionally, top barrier section 972 is bending and molding.When Hall gasket 97 only includes back mask segments 971 and top
When portion's mask segments 972, by the way of bending and molding, it is easier to obtain the Hall gasket 97 of required shape.It is, of course, also possible to logical
The mode for crossing metal casting obtains the Hall gasket 97 of required shape.
As shown in Figure 10, the area of back mask segments 971 is more than perspective plane of the hall magnet 93 in back mask segments 971
Product, and in the side direction of hall magnet 93, back mask segments 971 are reserved with ampleness mask segments 975.In such manner, it is possible to so that
Hall gasket 97 meets the requirement of the hall magnet 93 of different model, expands the use scope of Hall gasket 97, improves it
Versatility.
One group of inside sidewalls being oppositely arranged in shell 10 are arranged in magnetite component 40 in the present invention, and pcb board 92 is arranged
In the inside of one of another group of side wall being oppositely arranged of shell 10.
As shown in Figure 6 and Figure 7, magnetite component 40 includes two sub- magnetites in bending-type structure.
It magnetizes magnetite as shown in fig. 7, hall magnet 93 is quadrupole, and the middle part of hall magnet 93 is with no magnetic area 931.
In specific embodiment shown in Fig. 7, quadrupole magnetize magnetite include two poles N 932 and two poles S 933.
As shown in Figure 1, lens drive motor further include be located at the top of lens supports body 20 upper spring 50 and Upper gasket 96,
Lower spring 60, pedestal 70 and frame 90 positioned at 20 lower section of lens supports body.Frame 90 is sleeved on lens supports body 20, frame 90
With the groove for accommodating capacitance 95, upper spring 50 is used to support the upper surface of lens supports body 20, and lower spring 60 is for branch
The lower face of lens supports body 20 is supportted, shell 10 is arranged on mount 70 to form accommodating space, lens supports between
Body 20, coil 30, frame 90, upper spring 50, lower spring 60 and magnetite component 40 are respectively positioned in accommodating space, wherein shell 10
It is assembled together by embedded structure with pedestal 70.Pedestal 70 is used to support lens supports body 20, coil 30 and lower spring 60,
It is lens supports body 20, coil 30, frame 90, upper spring 50, lower spring 60 and magnetic under the collective effect of pedestal 70 and shell 10
Stone component 40 provides accommodating space, while can play the role of protecting internal component；In addition, shell 10 with pedestal 70 by embedding
Close Standard together, it is simple in structure, it is easy to operate, and assembly effect is good, reliability and stability is strong.
In addition, the sub- magnetite that is arranged in pairs mutually 180 degree each other, in being arranged oppositely, after being passed through electric current to coil 30, coil
Electromagnetic force is just will produce between 30 and magnetite component 40, according to the bright lefft-hand rule of Forlan, since the effect of electromagnetic force drives lens
Supporter 20 moves linearly along camera lens optical axis direction, and lens supports body 20, which finally stays in, to be generated between coil 30 and magnetite
The resultant force of electromagnetic force and the elastic force of upper spring 50 and lower spring 60 reaches location point when phase equilibrium state.By to coil 30
It is passed through set electric current, it is controllable that lens supports body 20 is made to be moved to target location, to achieve the purpose that focusing.
In specific embodiment shown in Fig. 8, pedestal 70 has center evacuation opening 71 and dust ring 72,72 edge of dust ring
The circumferentially extending of center evacuation opening 71.There is lens supports body 20 accommodating cavity, dust ring 72 to stretch into the appearance of lens supports body 20
It sets intracavitary and is combined with the contactless property dislocation of accommodating cavity, good dustproof effect can be played.
As shown in Fig. 1 and Fig. 9, embedded structure includes notch section 81 and lug boss 82, and notch section 81 is arranged on shell 10,
Lug boss 82 is arranged on the periphery of pedestal 70 and can be entrenched in notch section 81.Lug boss 82 and notch section 81 structure letter
It is single, it disclosure satisfy that chimeric requirement, and assembly effect is good, reliability and stability is strong.
In specific embodiment shown in Fig. 1, notch section 81 is located at the vertex of shell 10.It in this way can be to avoid to other
Component adversely affects, and is conducive to the performance for improving lens drive motor.
As shown in figure 3, lens supports body 20 has winding area, the limit for backstop coil 30 is provided in winding area
Position cord 25.Due to being provided with limit cord 25, it is thus possible to play the role of good position limitation protection to coil 30.
Embodiment two
Difference lies in the concrete structure of Hall gasket 97 is different from embodiment one with embodiment one.
As is illustrated by figs. 11 and 12, Hall gasket 97 further includes bottom shield section 973, and bottom shield section 973 is by back screen
The bottom for covering section 971 is stretched out to pcb board 92 to cover the bottom of hall magnet 93.By the way that bottom shield section 973, Ke Yijin is arranged
One step improves magnetic field shielding effect.As long as the space in lens drive motor allows, this set is entirely sensible.
Optionally, at least one of top barrier section 972, bottom shield section 973 are bending and moldings.When Hall gasket
97 only include back mask segments 971, top barrier section 972 and when bottom shield section 973, by the way of bending and molding, is relatively held
It is easy to get to the Hall gasket 97 of required shape.It is, of course, also possible to obtain the Hall pad of required shape by way of metal casting
Piece 97.
Embodiment three
Difference lies in the concrete structure of Hall gasket 97 is different from embodiment two with embodiment two.
As shown in Figure 13 and Figure 14, Hall gasket 97 further includes side mask segments 974, and side mask segments 974 are by back screen
The side for covering section 971 is stretched out to pcb board 92 to cover the side of hall magnet 93.By the way that side mask segments 974, Ke Yijin are arranged
One step improves magnetic field shielding effect.As long as the space in lens drive motor allows, this set is entirely sensible.
Optionally, at least one of top barrier section 972, bottom shield section 973 and side mask segments 974 are to be bent into
Type.By the way of bending and molding, it is easier to obtain the Hall gasket 97 of required shape.It is, of course, also possible to pass through metal casting
The mode made obtains the Hall gasket 97 of required shape.
When manufacturing Hall gasket 97 by the way of metal casting, side mask segments 974 are two, back mask segments
971, bottom shield section 973 and side mask segments 974 are integrally formed to surround the cavity for accommodating hall magnet 93.
Magnetic field shielding effect idealization of Hall gasket 97 in the present embodiment, but to the space of lens drive motor
Structural requirement is the harshest, it is necessary to while considering the space degree of admission of the structure up and down of lens drive motor.
Example IV
Difference lies in the concrete structure of Hall gasket 97 is different from embodiment one with embodiment one.
As shown in Figure 15 and Figure 16, Hall gasket 97 further includes side mask segments 974, and side mask segments 974 are by back screen
The side for covering section 971 is stretched out to pcb board 92 to cover the side of hall magnet 93.By the way that side mask segments 974, Ke Yijin are arranged
One step improves magnetic field shielding effect.As long as the space in lens drive motor allows, this set is entirely sensible.
Optionally, at least one of top barrier section 972, side mask segments 974 are bending and moldings.When Hall gasket
97 only include back mask segments 971, top barrier section 972 and when the mask segments 974 of side, by the way of bending and molding, is relatively held
It is easy to get to the Hall gasket 97 of required shape.It is, of course, also possible to obtain the Hall pad of required shape by way of metal casting
Piece 97.
In the present embodiment, magnetic field shielding effect further idealizes, under the premise of not reducing 93 size of hall magnet, together
When consider lens drive motor left and right space structure degree of admission.
It should be noted that in addition to the structure of the above-mentioned Hall gasket 97 enumerated, the Hall of all phase same-action and effect
Gasket 97 can make the adjustment and variation of various shapes.
The operation logic of the lens drive motor of the present invention：Hall chip 94 incudes hall magnet 93 and makees digital signal imitation
Feedback, compares specified digital analogue signal output and corresponding stroke position relationship forms relevance linear dimensions, this association is joined
Number defaults in memory.In this way, lens drive motor can directly invoke memory intrinsic parameter in the process of running, greatly reduce
Operation time in lens drive motor operational process.
The lens drive motor of the present invention has particular application as：Hall chip 94 incudes the digital mould of 93 position of hall magnet output
Quasi- electric signal, control unit are subject to calculation process to the electric signal, are fed back to coil 30 by the control of output signal and apply phase
Induced current size can drive lens supports body 20 precisely quickly to run on the point of image imaging effect optimum position.
In the present invention, the Hall chip 94 on pcb board 92 incudes with 93 phase of hall magnet being embedded on lens supports body 20,
Hall chip 94 is by incuding the magnetic field power variation that hall magnet 93 produces, you can detects camera lens module change in location simultaneously
Export electric signal.Control unit carries out operation after receiving the signal, while output signal is to control the electricity being applied on coil 30
Stream size, control camera lens module stop are held in correct position, final to realize purpose that is quick, precisely focusing.
It can be seen from the above description that the above embodiments of the present invention realize following technique effect：
1, by the way that Hall gasket 97 is arranged, be conducive to the signal feedback of lens drive motor, promote and improve the line of motor
Property parametric stability；
2, it due to being provided with Hall gasket 97, thus can allow shell 10 that high permeability material is selected to be made, be conducive to increase
Add motor thrust；
3, since magnetic field intensity is effectively promoted, thus more frivolous, the Jin Erneng that magnetic field component can be designed
More frivolous lens drive motor is enough designed, aesthetics is improved；
4, since magnetic field intensity increases, application smaller current, which can be realized, drives camera lens to reach designated position point, thus energy
It is enough that larger driving force can be generated under the function of current of very little, advantageously reduce energy consumption；
5, simple in structure, it is easy assembling.
Obviously, above-mentioned described embodiment only a part of the embodiments of the present invention, instead of all the embodiments.
Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts all
Other embodiment should all belong to the scope of protection of the invention.
It should be noted that term used herein above is merely to describe specific implementation mode, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, work, device, component and/or combination thereof.
It should be noted that term " first " in the description and claims of this application and above-mentioned attached drawing, "
Two " etc. be for distinguishing similar object, without being used to describe specific sequence or precedence.It should be appreciated that using in this way
Data can be interchanged in the appropriate case, so that presently filed embodiment described herein can be in addition to illustrating herein
Or the sequence other than those of description is implemented.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (15)
1. a kind of lens drive motor, which is characterized in that including shell (10), lens supports body (20), coil (30) and magnetite
Component (40), the coil (30) is around being located on the lens supports body (20) and be arranged in the shell (10), the magnetic
Stone component (40) is arranged between the lens supports body (20) and the shell (10), and the lens drive motor further includes：
Hall chip (94), the Hall chip (94) are arranged on pcb board (92)；
Hall magnet (93), the hall magnet (93) are arranged on the lens supports body (20) and the Hall chip (94)
On corresponding position；
Hall gasket (97), the Hall gasket (97) setting the hall magnet (93) and the lens supports body (20) it
Between, and the Hall gasket (97) includes back mask segments (971) and top barrier section (972), the top barrier section
(972) it is stretched out from the top of the back mask segments (971) to the pcb board (92) to cover the top of the hall magnet (93)
Portion.
2. lens drive motor according to claim 1, which is characterized in that the Hall gasket (97) further includes：
Bottom shield section (973), the bottom shield section (973) is from the bottom of the back mask segments (971) to the pcb board
(92) it stretches out to cover the bottom of the hall magnet (93)；And/or
Side mask segments (974), the side mask segments (974) are from the side of the back mask segments (971) to the pcb board
(92) it stretches out to cover the side of the hall magnet (93).
3. lens drive motor according to claim 2, which is characterized in that the top barrier section (972), the bottom
At least one of mask segments (973) and the side mask segments (974) are bending and moldings.
4. lens drive motor according to claim 2, which is characterized in that the Hall gasket (97) includes bottom shield
Section (973) and side mask segments (974), and the side mask segments (974) are two, it is the back mask segments (971), described
Bottom shield section (973) and the side mask segments (974) are integrally formed to surround for accommodating the hall magnet (93)
Cavity.
5. lens drive motor according to claim 1, which is characterized in that the area of the back mask segments (971) is big
In projected area of the hall magnet (93) on the back mask segments (971), and in the side of the hall magnet (93)
On portion direction, the back mask segments (971) are reserved with ampleness mask segments (975).
6. lens drive motor according to claim 1, which is characterized in that magnetite component (40) setting is described outer
One group of inside sidewalls being oppositely arranged of shell (10), the pcb board (92) setting opposite are set at another group of the shell (10)
The inside of one of the side wall set.
7. lens drive motor according to claim 6, which is characterized in that the magnetite component (40) includes two in folding
The sub- magnetite of curved structure.
8. lens drive motor according to claim 7, which is characterized in that the Hall gasket (97) is high magnetic conductivity material
Made of material.
9. lens drive motor according to claim 8, which is characterized in that the Hall gasket (97) is SPCC or SUS
Made of material.
10. lens drive motor according to any one of claim 1 to 9, which is characterized in that the shell (10) it is whole
The top surface of body, the part of the corresponding magnetite component (40) of at least described shell (10) or at least described shell (10) is high magnetic conduction
Made of property material.
11. lens drive motor according to any one of claim 1 to 9, which is characterized in that the shell (10) it is whole
The part of the corresponding magnetite component (40) of body, at least shell (10) or the top surface of at least described shell (10) be SUS or
Made of SPCC materials.
12. lens drive motor according to any one of claim 1 to 9, which is characterized in that the hall magnet (93)
It is that quadrupole magnetizes magnetite, and the middle part of the hall magnet (93) is with no magnetic area (931).
13. a kind of camera, which is characterized in that including the lens drive motor described in any one of claim 1 to 12.
14. a kind of mobile terminal apparatus, which is characterized in that including the camera described in claim 13.
15. mobile terminal apparatus according to claim 14, which is characterized in that the mobile terminal apparatus include mobile phone,
At least one of mobile information terminal and laptop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810880197.0A CN108681029A (en) | 2018-08-03 | 2018-08-03 | Lens drive motor, camera and mobile terminal apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810880197.0A CN108681029A (en) | 2018-08-03 | 2018-08-03 | Lens drive motor, camera and mobile terminal apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108681029A true CN108681029A (en) | 2018-10-19 |
Family
ID=63816268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810880197.0A Pending CN108681029A (en) | 2018-08-03 | 2018-08-03 | Lens drive motor, camera and mobile terminal apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108681029A (en) |
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| CN109375334A (en) * | 2018-12-24 | 2019-02-22 | 上海比路电子股份有限公司 | Lens driver, stabilization system and photographic device |
| CN109597182A (en) * | 2018-12-27 | 2019-04-09 | 上海比路电子股份有限公司 | Lens drive motor, camera and mobile terminal apparatus |
| CN109618104A (en) * | 2019-01-25 | 2019-04-12 | 长汀县比路电子有限公司 | Anti-shaking structure, stabilization system and photographic device |
| CN113126234A (en) * | 2021-04-26 | 2021-07-16 | 上海比路电子股份有限公司 | Miniaturized lens driving motor device |
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