CN106899192B - Voice coil motor - Google Patents
Voice coil motor Download PDFInfo
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- CN106899192B CN106899192B CN201510991881.2A CN201510991881A CN106899192B CN 106899192 B CN106899192 B CN 106899192B CN 201510991881 A CN201510991881 A CN 201510991881A CN 106899192 B CN106899192 B CN 106899192B
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- 230000003287 optical effect Effects 0.000 description 12
- 238000010586 diagram Methods 0.000 description 11
- 238000013461 design Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000006073 displacement reaction Methods 0.000 description 5
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- 239000000203 mixture Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000004069 differentiation Effects 0.000 description 2
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Classifications
-
- 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
-
- 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
-
- 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
- H02K41/0358—Lorentz force motors, e.g. voice coil motors moving along a curvilinear path
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Adjustment Of Camera Lenses (AREA)
- Lens Barrels (AREA)
Abstract
The invention discloses a voice coil motor, which comprises a magnet seat, a magnet group, a lens seat, a lens group, an upper elastic sheet, a lower elastic sheet and a circuit board, wherein the magnet group is provided with magnets arranged on four sides of the magnet base, the magnets are provided with N/S magnetic poles and S/N magnetic poles which are oppositely arranged, the lens group is positioned in the lens base, an upper elastic sheet and a lower elastic sheet are arranged above and below the lens group, a focusing actuating coil corresponding to the magnet group is arranged between the lens base and the magnet group, four anti-shake actuating coils corresponding to the magnet group are arranged on the circuit board, the focus actuating coil and the anti-shake actuating coil correspond to a common magnet set to achieve the purpose of reducing the volume of the voice coil motor, in addition, by providing opposite currents to the two corresponding coils in the focusing actuating coil, the lens mount can be deflected, and five-axis freedom degree control can be achieved.
Description
Technical field
The present invention relates to a kind of voice coil motors, more particularly, to a kind of tool reduction multiaxis voice coil motor thickness or the sound of volume
Coil motor.
Background technique
In recent years, develop with new generation camera and wearable device lens module towards slimming, 3.5mm or less is slim
Change the demand also continuous enlargement of lens module, while also gradually importing optical anti-shake (the Optical Image of high-order
Stabilization, OIS) technology, so that the quantity with volume of optical actuator are significantly increased under the confined space, thus spread out
Bear the technical bottleneck in multiaxis actuator design.
The challenge of aforementioned techniques bottleneck can be divided into multiaxis actuator design and production requirement, wherein multiaxis actuator
3~5 axis (freedom of actuator needed for the problem of design is how to provide auto-focusing (Auto Focus, AF) and OIS
Degree, DOF), while by thickness reduction within 4mm, in addition, the problem of production, is that how to reach structure simply and readily reaches
Automatic precision manufacture etc., to meet requirement of the industry in terms of speed of production and yield.Cell phone camera module (Cell-phone
Camera Module, CCM) thickness be always the focus that is concerned, proceed to 7~8mm from tens of mm, wherein AF actuator
For the movement of 1 axial direction of parallel optical axis, make camera lens can be 0 to carrying out image focusing between 0.5mm back and forth, and OIS actuator is then
For perpendicular to optical axis, and at least 2 axial directions of actuation, using actuator compensate displacement (< ± 0.2mm) caused by hand-held vibration or
Rotary motion (< ± 0.4 °), therefore, the camera model for typically being provided with OIS function also have AF function more, are to cause in mechanism in AF
The actuation means for adding 2~4 axial directions under dynamic device again, may be selected 2 directions displacements or inclination or high-order applies required 2
A displacement and 2 inclined controls, displacement or tilt angle caused by shaking are measured by gyroscope, then calculate control compensation partially
Shifting amount.Since required optical actuator quantity increases to 3~5 groups, so that module thickness is significantly increased, it is difficult to meet for thickness
Spend the requirement of aspect.Simultaneously in manufacture craft, component size reduces the quantity for increasing actuator again, so that manufacture difficulty is substantially
Increase, also becomes the challenge of technology development.
The main difficulty of the prior art, to meet 5 axis optics micro-actuator (Micro- needed for high-order AF and OIS
Optical Actuator, MOA), for common voice coil motor (Voice Coil Motor, VCM), have production good
Rate, cost advantage, structure be simple and reliable characteristic, however when the number of axle increases to 5 axis by 3 axis, traditional VCM design will so that
Integral thickness increases 2mm, so will lead to and is difficult to be integrated into existing product, or is forced to the prominent product surface of camera lens, and
In manufacture view, CCM is mainly made of components such as camera lens, IC circuit and VCM, since module size is reduced, so that camera lens and VCM
Volume also and then reduce, cause the problems such as camera lens defect is high, assembling yield is low respectively.
Therefore, how simple with structure, while not will increase the creative design design of thickness, it can especially increase control
The quantity of axis is thinned high-quality image module so as to realizing, actually those skilled in the art and CCM industry it is urgent and it is anxious to
The key point of breakthrough.
Summary of the invention
The present invention proposes a kind of voice coil motor, to achieve the purpose that volume-diminished, and lens group can be made to have five axis freedom
Degree.
Voice coil motor of the invention includes: magnetic receiver, group of magnets, lens mount, lens group, upper elastic slice and lower elastic slice, focusing
Actuating coil and anti-hand shake actuating coil, wherein magnetic receiver has hollow portion, and there are four be respectively arranged at group of magnets tool
Magnet on four side of magnetic receiver, and the magnet has the N/S magnetic pole and S/N magnetic pole of relative configuration, lens mount is set to magnetic receiver
Hollow portion in, which has through-Penetration portion, and the focusing actuating in four single circuits is set to group of magnets and camera lens with coil
Between seat, lens group is set in the through-Penetration portion of lens mount, and upper elastic slice is located above lens mount and lower elastic slice is located at lens mount
Lower section, to provide lens group limit and restoring force, the anti-hand shake actuating of four independent loops is set on circuit board with coil,
And it is respectively relative to group of magnets.
The present invention separately proposes a kind of voice coil motor, comprising: magnetic receiver, group of magnets, lens mount, lens group, upper elastic slice and under
Elastic slice, focusing actuating coil and anti-hand shake actuating coil, wherein magnetic receiver has hollow portion, and there are four group of magnets tools
The magnet being respectively arranged on four side of magnetic receiver, and the magnet has the N/S magnetic pole and S/N magnetic pole of relative configuration, lens mount is set
It is placed in the hollow portion of magnetic receiver, which has through-Penetration portion, and the focusing actuating of four independent loops is set to magnetic with coil
Between iron group and lens mount, lens group is set in the through-Penetration portion of the lens mount, and elastic slice is located above the lens mount on this
And the lower elastic slice is located at below the lens mount, is shaken and is caused with the anti-hand for lens group limit and restoring force, four independent loops
It employs coil to be set on circuit board, and is respectively relative to the group of magnets.
In voice coil motor of the invention, it is right to this that inverse current is provided by the two of them of four independent loops
Wherein corresponding two of coil are used in coke actuating, can produce opposite effect power, so that the lens mount forms deflection.
Compared to the prior art, voice coil motor proposed by the invention mainly utilizes four focusing actuating coils, one
A group of magnets and four anti-hands shake actuating coil, share list by allowing focusing actuating coil and anti-hand to shake actuating coil
One group of magnets, therefore structure is relatively easy, can effectively save magnet dosage, reduces material and assembling cost, more micromation module
The advantages of；In addition, there is lens mount inclined by providing inverse current corresponding two coils into focusing actuating coil
Turn effect, lens group can be made to have five axis freedom degrees, compensate the handshaking situation of user whereby, can effectively prevent improving optical
The efficiency of hand shake.
Detailed description of the invention
Fig. 1 is the overall appearance schematic diagram of voice coil motor of the invention；
Fig. 2 is the decomposition diagram of voice coil motor of the invention；
Fig. 3 is the cross sectional figure of voice coil motor of the invention；
The schematic diagram of Fig. 4 A and Fig. 4 B positional relationship between the group of magnets and coil of voice coil motor of the invention；
Fig. 4 C and Fig. 4 D compensate the schematic diagram of front-rear position relationship between group of magnets and coil of the invention；
Fig. 5 is that the power output of focusing actuating coil different height in voice coil motor of the invention compares figure；
Fig. 6 is that the power output that anti-hand shakes actuating coil different in width in voice coil motor of the invention compares figure；
Fig. 7 A and Fig. 7 B is the schematic diagram of voice coil motor difference embodiment of the invention；And
Fig. 8 A, Fig. 8 B and Fig. 8 C are the voice coil motor of the invention mobile schematic diagram of lens mount under different current conditions.
Symbol description
1 voice coil motor
11 magnetic receivers
111 hollow portions
12 group of magnets
13 lens mounts
139 through-Penetration portion
14 lens groups
Elastic slice on 151
152 lower elastic slices
161 focusing actuating coils
162 circuits
171 anti-hands shake actuating coil
172 circuits
18 snap the line
19 circuit boards.
Specific embodiment
Illustrate technology contents of the invention below by way of particular specific embodiment, those skilled in the art can be by this theory
The bright revealed content of book understands advantages of the present invention and effect easily.However the present invention can also be different specific by other
Embodiment is implemented or is applied.
Referring to Fig.1 and 2, Fig. 1 is the overall appearance schematic diagram of voice coil motor of the invention, Fig. 2 is sound of the invention
The decomposition diagram of coil motor can become voice coil motor shown in FIG. 1 after each element combination shown in Fig. 2, therefore subsequent both ask
It refers to together.As shown, voice coil motor 1 can be applied to the horizontal and vertical movement of camera model inner lens group, wherein voice coil
Motor 1 includes magnetic receiver 11, group of magnets 12, lens mount 13, lens group 14, upper elastic slice 151 and lower elastic slice 152, focusing actuating use
Coil 161, anti-hand shake actuating coil 171 and circuit board 19.
Magnetic receiver 11 has hollow portion 111, as shown, magnetic receiver 11 is exemplified as square framework, during intermediate portion is divided into
Empty portion 111.
Group of magnets 12 has four magnet (unnumbered) being set on 11 4 side of magnetic receiver, which has relative configuration
N/S magnetic pole and S/N magnetic pole, citing can be by once magnetizing so that four sides of magnet have been provided with N/S magnetic pole or S/N magnetic
Pole, or be made of the magnetic stripe (unnumbered) that two N/S magnetic poles are oppositely disposed；Group of magnets 12 is arranged on the four of magnetic receiver 11
In a frame, about relative positional relationship, it will be described in detail later.
Lens mount 13 is set in the hollow portion 111 of magnetic receiver 11, and lens mount 13 has through-Penetration portion 139, and four are focused
Actuating coil 161 may be disposed between group of magnets 12 and lens mount 13.
The focusing citing of actuating coil 161 can be made of or four or two pairs the coil in four independently-powered circuits
The coil in single circuit is formed, and is not limited.At this point, according to different embodiments four can be provided current to by single circuit
A focusing actuating coil, or four independent coils are provided current to respectively by four circuits, or by two circuits point
Two pairs of independent coils are not provided current to.
By providing actuating coil difference electric current kenel of focusing, the effect that lens mount can be made to generate translation and deflect, this
It can be determined according to the feeder number and coil composing type state that provide electric current.If only providing an electric current by single circuit, then table
Show that same electric current can be obtained in four independent coil compositions or four concatenated coils, therefore lens group can produce longitudinal translation,
Such as translated along Z axis, please also refer to Fig. 8 A, conversely, if providing electric current respectively by four circuits, then it represents that four coils are only
Vertical composition, therefore lens group will can produce deflection effect under different electric currents, such as deflect around X-axis or deflect around Y-axis, please also refer to figure
8B, provides electric current and mobile kenel, behind will be further specified.
Lens group 14 is in the through-Penetration portion 139 of lens mount 13, that is to say, that lens mount 13 is first placed in magnet by citing
After the hollow portion 111 of seat 11, lens group 14 can be placed on again in the through-Penetration portion 139 of lens mount 13.
Upper elastic slice 151 is located at 13 top of lens mount, and lower elastic slice 152 is located at 13 lower section of lens mount.As shown, upper elastic slice
151 for example, can have to form the elastic metal wire of round to correspond to lens group 14, elastic slice 152 is similarly descended to illustrate
For, it may have the elastic metal wire of round is formed to correspond to lens group 14, and upper elastic slice 151 and lower elastic slice 152 can be in mirrors
After head group 14 or lens mount 13 are mobile, limit effect is provided to limit moving range, in addition, upper elastic slice 151 and lower elastic slice 152 are also
It can provide lens group 14 or the restoring force that lens mount 13 resets.
Circuit board 19 is connect by four snap the line 18 with upper elastic slice 151, can be equipped on circuit board 19 opposite with group of magnets 12
The anti-hand of four answered shakes actuating coil 171, that is, anti-hand shake actuating coil 171 is to be located at circuit board 19 and group of magnets 12
Between.For example, corresponding two are shaken in actuating coil by providing current to four anti-hands simultaneously, lens mount can be made
13 or lens group 14 generate transverse translation, about the two positional relationship, also later Fig. 3 be described in detail.
It referring to figure 3., is the cross sectional figure of voice coil motor of the invention.As shown, cross-sectional view can show group of magnets
12 have on the voice coil motor left and right sides with magnet, and the magnet on every one side can be the N/ of tool relative configuration after magnetizing or combining
S magnetic pole and S/N magnetic pole, it is, each magnet shakes actuating coil 171 relative to focusing actuating coil 161 and anti-hand
All there is a pair of N/S magnetic pole or S/N magnetic pole on side.Four magnet on four sides of magnetic receiver 11 constitute group of magnets 12.Separately
Outside, also respectively there is identical magnet in not shown front and back.
Lens group 14 is located at the center of voice coil motor 1, generates support effect by lower elastic slice 152 below, in addition,
Focusing actuating is located at 13 surrounding of lens mount with coil 161, that is, between lens mount 13 and group of magnets 12, and the shake of anti-hand causes
It employs coil 171 to be then set on circuit board 19, that is, between circuit board 19 and group of magnets 12, is, actuating line of focusing
Circle 161 and anti-hand shake actuating coil 171 are separately positioned on the opposite two side faces of group of magnets 12, i.e. focusing actuating coil 161
Single group of magnets 12 can be shared with 171 the two of anti-hand shake actuating coil, in the prior art, focusing coil and anti-hand shake for this
It is needed to generate mobile effect by different groups of magnet respectively with coil, hence it is evident that magnet dosage is reduced, therefore, by sharing group of magnets 12
The thickness of voice coil motor 1 can be reduced, therefore can effectively reduce the overall volume of voice coil motor, in the specific implementation, voice coil motor 1
Overall volume can be within 3.5mm.
A and Fig. 4 B referring to figure 4. is the signal of positional relationship between the group of magnets and coil of voice coil motor of the invention
Figure.It as shown in Figure 4 A, is to describe focusing actuating coil 161 and anti-hand shake actuating coil 171 and magnetic by perspective view mode
The positional relationship of iron group 12, for example, focusing actuating coil 161 is the side for being located at group of magnets 12, and the shake actuating of anti-hand
It is the effect for being located at the following of group of magnets 12, therefore can reach shared group of magnets 12 with coil 171.
As shown in Figure 4 B, be compared by side view focusing actuating coil 161 and anti-hand shake actuating coil 171 with
The relative size relationship of group of magnets 12, as shown, the total height citing of focusing actuating coil 161 need to be greater than group of magnets 12
Total height, in addition, the overall width citing of anti-hand shake actuating coil 171 need to be less than the overall width of group of magnets 12, but not with this
It is limited.
Size design between above-mentioned focusing actuating coil 161 and anti-hand shake actuating coil 171 and group of magnets 12, also has
The advantages of avoiding coil from interfering, it is, when compensating mobile, it should be noted that the interference problem between two coils.
As shown in Figure 4 C, the figure shows the schematic diagrames before optical anti-shake compensation.As shown, there is magnetic in the left and right sides respectively
Iron group 12 has focusing actuating coil 161 on the inside of each group of magnets 12, there is anti-hand shake actuating coil 171 below each group of magnets 12,
A design example of the invention is that the overall width of anti-hand shake actuating coil 171 can be less than the overall width of group of magnets 12, therefore anti-hand shakes
There is distance X between actuating coil 171 and the side of group of magnets 121。
Then, as shown in Figure 4 D, the figure shows the compensated schematic diagrames of optical anti-shake.It is dynamic to make compensation in optical anti-shake
When making, anti-hand shake actuating coil 171 is fixation person, and group of magnets 12, focusing actuating coil 161 etc. are movement person, and optics is anti-
Hand shakes the displacement X that moving member (i.e. aforementioned mobile person) can be mobile, as shown in the figure toward X-axis or Y direction2(assuming that X2For the anti-hand of optics
Maximum moving distance needed for shake compensation), in X1>X2Under, when compensated movement, focusing actuating coil 161 will not shake with anti-hand
Actuating coil 171 interferes situation.It therefore, will by the size Position Design between two coils and group of magnets 12
Avoid possibility interference when compensation.
Size relation between above-mentioned focusing actuating coil 161 and anti-hand shake actuating coil 171 and group of magnets 12, it is main
The magnetic line of force for being desirable to group of magnets 12 can shake actuating coil 171 suitably by focusing actuating coil 161 and anti-hand, lead to
It crosses and gives coil appropriate excitation current, lens group is caused to generate the movement or rotation of all directions.
From the foregoing, it will be observed that the present invention is reached using the technical solutions such as the arrangement of differentiation magnet polarities and magnet and coil configuration
The effect of at reducing magnet dosage and exempting magnetic conductive part demand (existing voice coil motor needs), solves to reduce multiaxis voice coil whereby
The problems such as motor thickness or volume bottleneck.
Referring to figure 5., this figure illustrates that the power output of focusing actuating coil different height in voice coil motor of the invention compares
Figure.As shown, being tested with 161 3 kinds of different heights of coil focusing actuating, it is in the magnet width of group of magnets 12
When 1.2mm and height are 1mm, by adjusting the height (0.8mm, 1mm, 1.28mm) of focusing actuating coil 161, to obtain
Focus actuating between 161 size of coil and magnet generate active force it is relational, thus can obtain when focusing actuating coil 161
Height increase when, coil can provide active force also can be higher.From the foregoing, it will be observed that the total height of focusing actuating coil 161 will
Greater than the total height of group of magnets 12, thus the citing of the two height ratio is about between 1 to 1.28 times of ranges.
Fig. 6 is please referred to, similarly illustrates the power output of anti-hand shake actuating coil different in width in voice coil motor of the invention
Compare figure.As shown, being to be tested with 171 3 kinds of different in width of coil the shake actuating of anti-hand, in the magnet of group of magnets 12
Width is 1.2mm and height is when being 1mm, by adjusting anti-hand shake actuating coil 171 width (1mm, 1.2mm,
1.4mm), it to obtain generating the relational of active force between anti-hand shake 171 size of actuating coil and magnet, thus can obtain when anti-
Hand shake actuating is got over hour with the width of coil 171, and coil can provide active force also can be higher.Therefore, as previously mentioned, the shake of anti-hand causes
The overall width for employing coil 171 will be less than the overall width of group of magnets 12, thus the citing of the two width ratio is about 0.8 to 1
Between times range.
Fig. 7 A and Fig. 7 B is please referred to, is the schematic diagram for illustrating voice coil motor difference embodiment of the invention.As shown, sound
Coil motor 1 includes magnetic receiver 11, group of magnets 12, lens mount 13, lens group 14, upper elastic slice 151 and lower elastic slice 152, focusing actuating
With coil 161, anti-hand shake actuating coil 171 and circuit board 19, this composition is similar with Fig. 2 in Fig. 1, and so it will not be repeated.?
It further include generated lateral, longitudinal, the even deflection movement in the case where providing different electric currents to coil in the present embodiment.
As previously mentioned, when passing through while providing current in four anti-hands shake actuating coils 171 corresponding two, it can
Lens mount 13 is set to generate transverse translation, that is to say, that while labor human relations can be generated under galvanization and grow power, it may make lens group 14 or mirror
Headstock 13 will be translated along X-axis or Y-axis.Therefore, as shown in figures 7 a and 7b, four independently-powered circuits 172 can be passed through respectively
The electric current (because of angular relationship, being only painted two of them) of four anti-hands shake actuating coils is provided, therefore ought be wherein both opposite
Simultaneously when galvanization, then lens group 14 or lens mount 13 can be made to generate the effect of the transverse translation of X-axis or Y-axis.
In addition, as previously mentioned, lens mount 13 can be made to generate by providing the focusing actuating different electric current kenels of coil 161
The effect of translation and deflection, this can be determined according to the kenel for feeder number and the coil composition for providing electric current.
As shown in Figure 7 A, four focusing actuatings are powered with coil 161 only with single circuit 162, and actuating of no matter focusing is used
Coil 161 is made of four absolute coils or is connected by four coils, is only capable of providing single electric current by single circuit 162
To four coils of focusing actuating coil 161, therefore lens group 14 or lens mount 13 can produce longitudinal translation, such as flat along Z axis
It moves.
As shown in Figure 7 B, with the tool of coil 161, there are four independent loops 162 for focusing actuating, actuating coil 161 of focusing at this time
It is only four absolute coil compositions, each coil can correspond to a circuit 162 and be provided by the circuit 162 for the coil
Electric current, therefore, if four circuits 162 provide single electric current four independent coils into focusing actuating coil 161 simultaneously,
Lens group 14 also can produce longitudinal translation, such as translate along Z axis.
In addition, if both wherein providing inverse current to focusing actuating with opposite in coil 161 by four circuits 162
When two coils answered, two coils will be made to generate opposition, then lens group 14 or lens mount 13 can produce deflection effect,
Such as it deflects around X-axis or is deflected around Y-axis.In addition, when corresponding two coils are a clock synchronization, can also two pairs of coils supply electricity simultaneously
Stream, will generate the deflection to X-axis and Y-axis simultaneously at this time.By deflection effect, compensation will be generated to focus process.
Fig. 8 A to Fig. 8 C is please referred to, is to illustrate that the voice coil motor of the invention lens mount under different current conditions is mobile to show
It is intended to.As shown, Fig. 8 A is indicated when galvanization generates labor human relations taste power to four focusing actuating coils 161 simultaneously, it will be along Z
Axis translation pushes, that is, the group of magnets 12 in Fig. 3, magnetic receiver 11, anti-hand shake actuating coil 171 are fixation person, and focuses
Actuating coil 161 belongs to mobile person with lens group 14 or lens mount 13, see dotted portion.
Fig. 8 B expression, then will be along X-axis or Y-axis when actuating of focusing leads to inverse current with 161 two of them coil of coil
Deflection, that is, the group of magnets 12 in Fig. 3, magnetic receiver 11, anti-hand shake actuating coil 171 are fixation person, and actuating of focusing is used
Coil 161 belongs to mobile person with lens group 14 or lens mount 13.
Fig. 8 C expression, will be along X-axis or Y-axis when anti-hand shake actuating 171 two of them coil of coil galvanization simultaneously
Translation, anti-hand shake actuating coil 171 is fixation person, and group of magnets 12, magnetic receiver 11, focusing actuating coil 161 in Fig. 3
Mobile person is belonged to lens group 14 or lens mount 13.
Therefore, the present invention is in addition to reaching using the technological means such as the arrangement of differentiation magnet polarities and magnet and coil configuration
Outside the effect of reducing magnet dosage and exempting magnetic conductive part demand, also further pass through the configuration mode and not of focusing actuating coil
With the offer of electric current, and then reach a variety of driving methods, including lateral, longitudinal, also deflection, therefore add up to has five axis in total
Freedom degree.
Although the present invention is to propose structural improvement with the voice coil motor of camera model, this voice coil motor does not limit application
In camera model, in other words, lens group of the present invention can be other passive devices, such as probe, cutter etc., by this hair
Bright voice coil motor equally can provide the mobile control of five axis freedom degrees.
In conclusion voice coil motor of the invention, shakes actuating line by four focusing actuating coils and four anti-hands
Circle can share a group of magnets, so that voice coil motor structure is simpler, and can effectively save magnet dosage, and then reduce material and group
This is dressed up, in particular, reducing can make overall volume smaller using magnet, is conducive to component miniaturization, in addition, configuring using coil
And the offer of different electric currents, so that lens mount is generated lateral, longitudinal direction and deflection effect, therefore lens group can be made to have five axis freedom degrees,
It can compensate for hand shaking situation, whereby with the efficiency of the anti-hand shake of effective improving optical.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
Know the personage of technique without departing from the spirit and scope of the present invention, modifications and changes are made to the above embodiments.
Therefore, the scope of the present invention, should be as listed in the claims.
Claims (10)
1. a kind of voice coil motor, it is characterized in that, which includes:
Magnetic receiver has hollow portion；
Group of magnets, there are four the magnet for being respectively arranged at four side of magnetic receiver for tool, and the magnet has the N/S magnetic pole of relative configuration
With S/N magnetic pole；
Lens mount is set in the hollow portion of the magnetic receiver, which is formed through portion；
The focusing actuating coil in four single circuits, is set between the group of magnets and the lens mount；
Lens group is set in the through-Penetration portion of the lens mount；
Upper elastic slice and lower elastic slice, elastic slice is located above the lens mount on this and the lower elastic slice is located at below the lens mount, to mention
For lens group limit and restoring force；And
The anti-hand of four independent loops shakes actuating coil, is set on circuit board, and be respectively relative to the group of magnets,
Wherein, corresponding two are shaken in actuating coil by providing current to the anti-hand simultaneously, so that the lens mount produces
Raw transverse translation, and pass through while providing current to the focusing actuating coil, so that the lens mount generates longitudinal translation.
2. voice coil motor as described in claim 1, it is characterized in that, the total height of focusing actuating coil is greater than the group of magnets
Total height.
3. voice coil motor as described in claim 1, it is characterized in that, the overall width of the anti-hand shake actuating coil is less than the magnet
The overall width of group.
4. voice coil motor as described in claim 1, it is characterized in that also including four snap the line, to connect on the circuit board and this
Elastic slice.
5. voice coil motor as described in claim 1, it is characterized in that, the magnet of the group of magnets is opposite by two N/S magnetic poles
The magnetic stripe of configuration is formed.
6. a kind of voice coil motor, it is characterized in that, which includes:
Magnetic receiver has hollow portion；
Group of magnets, there are four the magnet for being respectively arranged at four side of magnetic receiver for tool, and the magnet has the N/S magnetic pole of relative configuration
With S/N magnetic pole；
Lens mount is set in the hollow portion of the magnetic receiver, which is formed through portion；
The focusing actuating coil of four independent loops, is set between the group of magnets and the lens mount；
Lens group, in the through-Penetration portion of the lens mount；
Upper elastic slice and lower elastic slice, elastic slice is located above the lens mount on this and the lower elastic slice is located at below the lens mount, to mention
For lens group limit and restoring force；And
The anti-hand of four independent loops shakes actuating coil, is set on circuit board, and be respectively relative to the group of magnets,
Wherein, by providing current to the focusing actuating coil simultaneously, so that the lens mount generates longitudinal translation, and pass through
Inverse current is provided into the focusing actuating coil corresponding two simultaneously, so that the lens mount generates deflection, and
Corresponding two are shaken in actuating coil by providing current to the anti-hand simultaneously, is laterally put down so that the lens mount generates
It moves.
7. voice coil motor as claimed in claim 6, it is characterized in that, the total height of focusing actuating coil is greater than the group of magnets
Total height.
8. voice coil motor as claimed in claim 6, it is characterized in that, the overall width of the anti-hand shake actuating coil is less than the magnet
The overall width of group.
9. voice coil motor as claimed in claim 6, it is characterized in that also including four snap the line, to connect on the circuit board and this
Elastic slice.
10. voice coil motor as claimed in claim 6, it is characterized in that, the magnet of the group of magnets is opposite by two N/S magnetic poles
The magnetic stripe of configuration is formed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW104142687 | 2015-12-18 | ||
| TW104142687A TWI559654B (en) | 2015-12-18 | 2015-12-18 | Voice coil motor |
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| Publication Number | Publication Date |
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| CN106899192A CN106899192A (en) | 2017-06-27 |
| CN106899192B true CN106899192B (en) | 2018-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510991881.2A Active CN106899192B (en) | 2015-12-18 | 2015-12-25 | Voice coil motor |
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| CN (1) | CN106899192B (en) |
| TW (1) | TWI559654B (en) |
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| CN109814227A (en) * | 2017-11-22 | 2019-05-28 | 惠州市珩兴实业有限公司 | A kind of high-accuracy VCM motor |
| DE102019202868A1 (en) * | 2019-03-04 | 2020-09-10 | Carl Zeiss Smt Gmbh | Actuator device and method for aligning an optical element, optical assembly and projection exposure system |
| WO2020243859A1 (en) * | 2019-06-01 | 2020-12-10 | 瑞声光学解决方案私人有限公司 | Automatic focusing lens assembly and automatic focusing method thereof |
| CN112737271B (en) * | 2019-10-28 | 2022-10-11 | 华为技术有限公司 | Motor, camera module and mobile terminal |
| US20240048830A1 (en) * | 2020-12-11 | 2024-02-08 | Ningbo Sunny Opotech Co., Ltd. | Drive Apparatus and Camera Module |
| CN112928891B (en) * | 2021-02-03 | 2023-02-21 | 复旦大学 | Six-degree-of-freedom magnetic levitation table device and control method thereof |
| CN112965317A (en) * | 2021-02-26 | 2021-06-15 | 北京可利尔福科技有限公司 | Optical anti-shake motor and camera module |
| CN113514951B (en) * | 2021-06-22 | 2024-01-30 | 歌尔光学科技有限公司 | Galvanometer system, projection equipment and projection method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI412215B (en) * | 2008-06-13 | 2013-10-11 | Hon Hai Prec Ind Co Ltd | Voice-coil motor and lens module using same |
| CN101807841A (en) * | 2009-02-17 | 2010-08-18 | 比锐精密设备(深圳)有限公司 | Voice coil motor |
| CN102375287A (en) * | 2010-08-26 | 2012-03-14 | 鸿富锦精密工业（深圳）有限公司 | Image stabilizing module and imaging device |
| TWI456253B (en) * | 2010-10-15 | 2014-10-11 | Tdk Taiwan Corp | Anti-shock tilt correction structure of auto focus module |
| TWI483516B (en) * | 2011-05-31 | 2015-05-01 | Hon Hai Prec Ind Co Ltd | Voice coil motor |
| JP2015034912A (en) * | 2013-08-09 | 2015-02-19 | ミツミ電機株式会社 | Lens holder drive unit, camera module, and portable terminal with camera |
| CN204422877U (en) * | 2014-12-26 | 2015-06-24 | 东莞市东勤电子有限公司 | Shift shaft type optical anti-vibration moves lens driver |
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| TWI559654B (en) | 2016-11-21 |
| CN106899192A (en) | 2017-06-27 |
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