CN107991752A - The manufacture method of lens driver, camera model and lens driver - Google Patents
The manufacture method of lens driver, camera model and lens driver Download PDFInfo
- Publication number
- CN107991752A CN107991752A CN201710998858.5A CN201710998858A CN107991752A CN 107991752 A CN107991752 A CN 107991752A CN 201710998858 A CN201710998858 A CN 201710998858A CN 107991752 A CN107991752 A CN 107991752A
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- China
- Prior art keywords
- leaf spring
- wire
- solder
- lens driver
- mobile member
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
- G02B7/09—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted for automatic focusing or varying magnification
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
-
- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Manufacturing & Machinery (AREA)
- Lens Barrels (AREA)
- Studio Devices (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
The present invention provides the leaf spring that can reliably carry out supporting mobile member and is arranged at the connection of the coil of mobile member and realizes the lens driver of the slimming of mobile member, using the camera model of the lens driver and the manufacture method of lens driver.The mobile member (10) of lenticular body is being kept to be provided with protuberance (15), the terminal part (41a) for forming the coated conducting wire (41) of coil is wound in protuberance (15) so as to form Wire-wound portion (42).In lower part, the engagement edge (27) for the brazed portion (25) that the drawer at movable side supporting slice (22) of leaf spring (20) is formed is opposed with Wire-wound portion (42).In brazed portion (25) formed with interconnecting part (28).Therefore, solder can be attached to the inner surface (20a) and outer surface (20b) and Wire-wound portion (42) of lower part leaf spring (20).
Description
Technical field
The present invention relates to lens driver, use the camera model and lens driver of the lens driver
Manufacture method, the lens driver soldering have be arranged at for lenticular body carry mobile member coil and supporting institute
State the leaf spring of mobile member.
Background technology
The invention on lens driver is described in patent document 1.
The lens driver has the lens holding member (mobile member) and supporting member that can carry lenticular body.Thoroughly
Mirror holding member is supported on supporting member via downside leaf spring and upside leaf spring.Lens holding member is provided with coil, is propping up
Bearing member side is fixed with magnet.Formed with connecting end sub-portion on the hardware for be embedded in supporting member, from the connection terminal
Portion applies driving current via downside leaf spring to coil, lens holding member is moved to the optical axis direction of lenticular body.By this
Action, carries out the focusing of the image of capturing element.
, it is necessary to connect downside leaf spring and overhang in the lens driver.As the structure for realizing the purpose,
Lens holding member is provided with downward projection of protuberance, overhang is wound in protuberance.In downside leaf spring formed with
Brazed portion, the brazed portion of downside leaf spring is opposed with the protuberance, and brazed portion and overhang are brazed.
Citation
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2015-99322 publications
In the lens driver described in patent document 1, inner surface of the leaf spring with the base portion side towards protuberance,
And the outer surface of the toe lateral towards protuberance, at brazed portion, solder is supplied in the outer surface of leaf spring and is brazed.
Therefore, in order to the overhang for being wound in protuberance is reliably brazed with leaf spring and turn on them, it is necessary to
Overhang is more wound in protuberance so that overhang reach and leaf spring outer surface separate it is higher
Position.As a result, the height dimension that protuberance is protruded from the outer surface of leaf spring becomes larger, the optical axis for making lens drive member is hindered
The thickness slimming in direction.
Also, if solder is mainly only arranged at the outer surface of leaf spring, can not increase contributes to overhang and leaf spring
Engagement solder amount, it is difficult to fully ensure the bond strength of overhang and leaf spring.
The content of the invention
Problems to be solved by the invention
It is an object of the invention to solve above-mentioned conventional problem, there is provided will not excessively increase and be arranged at the prominent of mobile member
Protrusion size going out portion, being protruded from the outer surface of leaf spring and the lens driving dress that coil can be reliably engaged with leaf spring
Put, using the camera model of the lens driver and the manufacture method of lens driver.
Solutions to solve the problem
The present invention relates to a kind of lens driver, its have can carry the mobile member of lenticular body, be arranged on it is described
It is to be moved freely along the optical axis direction of the lenticular body between mobile member and supporting member and by mobile member supporting
Leaf spring, the coil for being arranged at the mobile member and the magnet opposed with the coil, the feature of the lens driver exist
In being provided with protuberance in the mobile member, form the Wire-wound of the coil in the protuberance so as to formed with leading
Line winder, the leaf spring have the inner surface of the base portion side towards the protuberance and the front portion towards the protuberance
The outer surface of side, and there is the engagement edge adjacent with the Wire-wound portion, in the engagement edge and the coil of wire
In the state of opposed around portion, the inner surface of at least described leaf spring is engaged with the Wire-wound portion by solder.
The lens driver of the present invention is configured to, the leaf spring formed with connect the inner surface with it is described outer
The interconnecting part on surface, the solder are arranged at the inner surface and the outer surface via the interconnecting part, at least described interior table
Face is engaged with the Wire-wound portion by the solder.
In the lens driver of the present invention, or, for the Wire-wound portion, from the leaf spring
The height dimension that the inner surface plays the part of the base portion side positioned at the protuberance is more than from the outer surface positioned at described
The height dimension of the part of the toe lateral of protuberance.
In the lens driver of the present invention, or, the inner surface of the leaf spring and the outer surface this
Both sides are engaged with the Wire-wound portion by solder, are existed in the amount ratio for the solder that the inner surface of the leaf spring adheres to
The amount of the solder of the outer surface attachment is more.
In the lens driver of the present invention, the interconnecting part is the hole for penetrating through the leaf spring.
In this case, or, formed with linking part between the engagement edge of the leaf spring and the hole,
The inner surface and the outer surface in the hole and the linking part is both provided with the solder.
In the lens driver of the present invention, or, the interconnecting part is that a part is opened in the engagement edge
The recess of mouth.
Next, the camera model of the present invention is characterized in that having：Any one described lens driver；It is described
The lenticular body that the mobile member of lens driver is kept；And the capturing element opposed with the lenticular body.
Also, the present invention relates to a kind of manufacture method of lens driver, the lens driver has and can take
The mobile member of lenticular body is carried, is arranged between the mobile member and supporting member and supports the mobile member for along institute
The optical axis direction movement leaf spring freely of stating lenticular body, the coil for being arranged at the mobile member and opposed with the coil
Magnet, the manufacture method of the lens driver is characterized in that, will form the Wire-wound of the coil in the shifting
The protuberance that dynamic component is set makes the engagement edge of the leaf spring and the Wire-wound portion pair so as to form Wire-wound portion
Put, the leaf spring have towards the protuberance base portion side inner surface, towards the protuberance toe lateral outer surface,
The interconnecting part of the inner surface and the outer surface and the engagement edge are connected, is made in the outer surface of the leaf spring
Solder melts, and the solder is reached the inner surface via the interconnecting part from the outer surface, at least by the inner surface
Engaged with the Wire-wound portion by the solder.
In the manufacture method of the lens driver of the present invention, the interconnecting part is the hole for penetrating through the leaf spring.
Alternatively, the interconnecting part is recess of the one part in the engagement edge opening.
Invention effect
In the present invention, Wire-wound portion of the inner surface of the base portion side towards protuberance of leaf spring with being formed at protuberance
It is brazed, therefore the protrusion size using the outer surface of leaf spring as the protuberance of benchmark can be shortened.As a result, shifting can be made
Dynamic component slimming, can realize the slimming of lens driver entirety.
, can be by being set in the inner surface and the outer surface of leaf spring this both sides in addition, by forming interconnecting part in leaf spring
Solder, Wire-wound portion is engaged with leaf spring, therefore improves the bond strength of leaf spring and Wire-wound portion, also improves conducting
Property.As a result, the number of turn of the conducting wire at the Wire-wound portion of protuberance can be reduced, protuberance thus can be also reduced
Height dimension, contributes to the slimming of mobile member.
In the manufacture method of the lens driver of the present invention, by forming interconnecting part in leaf spring, so that from leaf spring
Outer surface supply solder when, the solder that has melted reaches the inner surface of leaf spring through interconnecting part, can be by the interior table of leaf spring
Face is reliably brazed with Wire-wound portion.
Brief description of the drawings
Fig. 1 is the stereogram of the appearance for the lens driver for showing embodiments of the present invention.
Fig. 2 is the exploded perspective view of the lens driver shown in Fig. 1.
Fig. 3 is the stereogram for showing the mobile member of the lens driver shown in composition Fig. 2 upside down.
Fig. 4 is that first embodiment, Fig. 3 the partial enlargement for showing Wire-wound portion and the solder junction surface of leaf spring is stood
Body figure.
Fig. 5 is the exploded perspective view at the solder junction surface in the Wire-wound portion and leaf spring shown in Fig. 4.
Fig. 6 is the section view after cutting off in the Wire-wound portion shown in Fig. 4 and the solder junction surface of leaf spring at line VI -- VI
Figure.
Fig. 7 is the exploded perspective view for the second embodiment for showing Wire-wound portion and the solder junction surface of leaf spring.
Fig. 8 is the exploded perspective view for the 3rd embodiment for showing Wire-wound portion and the solder junction surface of leaf spring.
Fig. 9 is the exploded perspective view for the 4th embodiment for showing Wire-wound portion and the solder junction surface of leaf spring.
Figure 10 is the exploded perspective view for the 5th embodiment for showing Wire-wound portion and the solder junction surface of leaf spring.
Description of reference numerals
1 lens driver；
2 supporting base stations (supporting member)；
3 lids；
4b connection terminals；
10 mobile members；
The lower surface of 10a mobile members；
15 protuberances；
15a base portions；
15b is anterior；
20 lower part leaf springs；
20a inner surfaces；
20b outer surfaces；
21 affixed side supporting slices；
22 drawer at movable side supporting slices；
23 elastic arms；
25 brazed portion；
25a linking parts；
27 engagement edges；
28th, 28a, 28b, 28c, 28d interconnecting part；
30 top leaf springs；
40th, 40A, 40B, 40C, 40D solder junction surface；
41 coated conducting wires；
41a terminal parts；
42 Wire-wound portions；
45 solders；
C coils；
M magnet.
Embodiment
The overall structure of the lens driver 1 of embodiments of the present invention is shown in fig. 1 and 2.
Lens driver 1 has mobile member 10.Mobile member 10 is created as the lens holding member of tubular.Lens
Body (lens drum or lens barrel) is installed on the centre bore 11 of mobile member 10.Lenticular body is included one piece of lens or polylith lens
The lens group and the holding lens or the Lens holder of the lens group being composed.Centre bore 11 formed with
Internal thread part 11a, Lens holder outer circumferential surface formed with external thread part, by making external thread part and internal thread part 11a spiral shells
Connect, so that lenticular body be installed and be equipped on mobile member 10.It should be noted that lenticular body can also be fixed by bonding agent
In mobile member 10.
Z1-Z2 directions in Fig. 1 and Fig. 2 are above-below directions, and are the direction (optical axises parallel with the optical axis O of lenticular body
Direction).Lens driver 1 is equipped on the portable electric appts such as portable phone.Z2 sides are being leaned on than lens driver 1
Position is configured with the capturing elements such as CCD.Camera model is formed by lens driver 1, lenticular body and capturing element.In camera
In module, moved by mobile member 10 and the lenticular body for being equipped on the mobile member 10 to Z1-Z2 directions, so as to be imaged
In the auto-focusing of the image of capturing element.
As depicted in figs. 1 and 2, lens driver 1 is provided with supporting base station 2 and lid 3.Pass through combination support base station 2
With lid 3, so as to be formed in the internal shell (housing) with storage space.Base station 2 is supported by synthesizing as nonmagnetic substance
Resin material is formed.Lid 3 is formed by having magnetic stainless-steel sheet etc., is played function as yoke.Opened in supporting base station 2
Mouth has light to pass through hole 2b, and being also open in the top plate portion 3a of lid 3 has light to pass through hole 3b.The flat shape for supporting base station 2 and lid 3 is four
Side shape.In this embodiment, supporting member (fixing component) is formed by supporting base station 2 and lid 3.
As shown in Fig. 2, formed with spring fixing portion 2a on four corners of supporting base station (supporting member) 2.Supporting
A pair of of the lower part leaf spring 20 being separated from each other is installed on base station 2.Each lower part leaf spring 20 passes through flat spring metal material one landform
Into have affixed side supporting slice 21, the affixed side supporting slice 21 inner side drawer at movable side supporting slice 22 and the fixed side bearing of connection
The elastic arm 23 of piece 21 and drawer at movable side supporting slice 22.
At two positions of the Y1 sides of the affixed side supporting slice 21 of each lower part leaf spring 20 and Y2 sides formed with mounting hole
The projection that is formed is chimeric on the spring fixing portion 2a of 21a, each mounting hole 21a with supporting base station 2, the projection by hot riveting and
Fixed.Each lower part leaf spring 20 drawer at movable side supporting slice 22 three positions formed with mounting hole 22a.
In figure 3 by mobile member 10 so that posture upward lower surface 10a is shown.Fig. 3 is by the mobile member shown in Fig. 2
10 X1-X2 axis to be shown as the posture after central rotation 180 degree.Figure 3 illustrates be provided with lower part in mobile member 10
The state of leaf spring 20 and coil C described later.It is provided with total six positions of the lower surface 10a of mobile member 10 as spring
The projection of fixed part 12.In lower part leaf spring 20 drawer at movable side supporting slice 22 formed each mounting hole 22a with mobile member 10
The projections of spring fixing portion 12 that set of lower surface 10a be fitted together to, be fixed by carrying out hot riveting to the projection.
As shown in Fig. 2, lens driver 1 is provided with four magnet M.Each magnet M is located to be played function as yoke
Lid 3 inside four corners near, the inner surface of lid 3 is fixed on by bonding agent etc..
As shown in Fig. 2, the top of the mobile member 10 (Z1 directions) is provided with top leaf spring 30.Top leaf spring 30 is logical
Cross flat spring metal material be integrally formed with the affixed side supporting slice 31 of frame shape of quadrangle, the affixed side supporting slice 31 it is interior
The drawer at movable side supporting slice 32 of side and the elastic arm 33 of connection affixed side supporting slice 21 and drawer at movable side supporting slice 32.Affixed side
Four corners of supporting slice 31 are fixed on the Z1 sides of magnet M by bonding agent etc. as mounting portion 31a, each mounting portion 31a
Upper surface.In addition, each mounting portion 31a is clamped between the inner surface of the top plate portion 3a of lid 3 and the upper surface of magnet M.Such as
Shown in Fig. 2, the X1 sides of the upper surface 10b towards Z1 sides of mobile member 10 and X2 sides are provided with spring fixing portion 13.Top
The drawer at movable side supporting slice 32 of leaf spring 30 is fixed on spring fixing portion 13 by riveted structure, bonded structure.
Mobile member 10 is clamped by lower part leaf spring 20 and top leaf spring 30, is accommodated in and is moved by what four magnet M encirclements formed
Make in space, which is located at the lower section of magnet M and is fixed on the spring fixing portion 2a of supporting base station 2, the upper board
Spring 30 is fixed on magnet M.The elastic arm 23 for being arranged at lower part leaf spring 20 is configured to tiny curved shape and crawls shape,
The elastic arm 33 for being arranged at top leaf spring 30 also is shaped to tiny curved shape and crawls shape.Mobile member 10 is by upper
Under elastic arm 23,33 elastic deformation and be supported to move freely along the i.e. Z1-Z2 directions of optical axis direction.
The coil C for being wound with coated conducting wire 41 is provided with the periphery of mobile member 10.As one of supporting member
Point lid 3 inner surface fix the magnet M four positions at the circumferentially spaced interval along mobile member 10 with it is described
The separated modes of coil C are opposed with the coil C from outside.
As shown in Fig. 2, the metallic plate for being divided into three parts is embedded with supporting base station 2, two metallic plates therein
A respective part is downwardly projected (connection terminal 4b figure 2 illustrates) as connection terminal 4b from the side for supporting base station 2.
Two spring fixing portion 2a for being arranged at Y1 sides in four spring fixing portion 2a of base station 2 are supported formed with described two metals
The exposed division 4a that a part for plate is exposed.Two lower part leaf springs 20 are separately close to exposed division 4a and pass through welding
Deng and engage, described two connection terminal 4b are turned on one to one with two lower part leaf springs 20.
In addition, another metallic plate for being formed without the exposed division 4a being divided into the metallic plate of three parts is formed
For u-shaped shape in plan view, as depicted in figs. 1 and 2, one part is in the corner of supporting base station 2 as earthy end
Sub- 4c and protrude laterally.The earthy terminal 4c is engaged with lid 3, and lid 3 is set to earthing potential.
As shown in figure 3, two positions of the lower surface 10a towards Z2 sides of mobile member 10 are provided with solder junction surface
40.At each solder junction surface 40, coated conducting wire of the lower part leaf spring 20 of a two-part side with forming coil C is divided into
The terminal part of 41 side is brazed and engages, the lower part leaf spring 20 of the opposing party and the terminal part quilt of the opposing party of coated conducting wire 41
It is brazed and engages.It should be noted that the terminal part of a side and the terminal part of the opposing party of coated conducting wire 41 are removed insulation quilt
Cover and be brazed.
Thus, be divided into two parts and be embedded in supporting base station 2 connection terminal 4b via each lower part leaf spring 20 and
It is connected and turns on the terminal part of a side and the terminal part of the opposing party of coated conducting wire 41.Thereby, it is possible to from two connection terminals
4b is powered to coil C.When applying driving current to coil C by the electrical path, by the electric current that is flowed in coil C and
The electromagnetic force formed by the magnet M magnetic fields produced, mobile member 10 is driven to Z1-Z2 directions.Pass through the dynamic of the mobile member 10
Make, in lenticular body image in the focusing of the image of capturing element.It should be noted that four magnet M are magnetized respectively
For the outer surface of the opposed inner surface opposed from coil C and the inner surface towards lid 3 becomes different magnetic poles.
Fig. 4 is the enlarged partial isometric view by the partial enlargement of Fig. 3, as the solder junction surface of first embodiment,
The amplification of solder junction surface 40 of X1 sides shown in Fig. 3 is shown.At the solder junction surface 40, the lower part leaf spring 20 of X1 sides with from
The terminal part 41a of one side of the coated conducting wire 41 of coil C extensions is brazed.Fig. 5 is the decomposition at the solder junction surface 40 shown in Fig. 4
Stereogram, Fig. 6 are the sectional views for cutting off Fig. 4 at line VI -- VI.Solder 45 is illustrated in Fig. 4 and Fig. 6, but is saved in Figure 5
The slightly diagram of solder 45.It should be noted that be pointed to the opposing party of X2 sides lower part leaf spring 20 and coated conducting wire 41 it is another
The solder junction surfaces 40 that are brazed of terminal part 41a of side and the solder junction surface 40 shown in Fig. 4 to Fig. 6 on Y1-Y2 axis and
Line is symmetrical, and its structure is identical, and and the description is omitted.
As shown in Figures 4 to 6, in addition also as shown in figure 3, being integrally formed in the lower surface 10a of mobile member 10 oriented
Lower section (Z2 directions：Fig. 4 into Fig. 6 for diagram above) prominent protuberance 15.Protuberance 15 is in prism shape.Such as Fig. 6 institutes
Show, boundary portion of the protuberance 15 in itself and the lower surface 10a of mobile member 10 has base portion 15a, has front portion 15b in Z2 sides.
That is, the one end of protuberance 15 from the optical axis direction of mobile member 10 is protruded along optical axis direction.
As shown in Figure 5 and Figure 6, winding forms the coated conducting wire 41 of coil C and is drawn to the lower surface of mobile member 10
10a.Coated conducting wire 41 removes insulation-coated in the terminal part 41a of a side.That is, the insulation-coated of end of coated conducting wire 41 is gone
The part removed and expose conducting wire (copper wire) is terminal part 41a.The boundary portion P of coated conducting wire 41 is shown in fig. 5 and fig..From
It is the insulation-coated terminal part 41a being removed between boundary portion P to line end 41b.
As shown in Figure 5 and Figure 6, be coated to conducting wire 41 terminal part 41a be spirally wound in around protuberance 15 and
As Wire-wound portion 42.As shown in fig. 6, around protuberance 15, formed with step between base portion 15a and front portion 15b
Portion 15c.From the terminal part 41a of the coated conducting wires 41 of coil C extensions using with the position that stage portion 15c is abutted as winding start point,
Wound successively towards anterior 15b directions relative to protuberance 15, so as to form Wire-wound portion 42.As illustrated in the cross sectional view of figure 6,
The number of turns of terminal part 41a in Wire-wound portion 42 is the circle of 2 circles~3.
As shown in Figure 5 and Figure 6, the face of the base portion 15a towards protuberance 15 of lower part leaf spring 20, i.e. with mobile member 10
The face towards Z1 sides that lower surface 10a is faced is inner surface 20a, in the side opposite with inner surface 20a, towards protuberance 15
The face towards Z2 sides of anterior 15b is outer surface 20b.
As shown in Figure 5 and Figure 6, in lower part leaf spring 20, in the middle body extended along Y-direction of drawer at movable side supporting slice 22
In the end sets of Y2 sides have brazed portion 25.In drawer at movable side supporting slice 22 formed with recess 26 is distinguished, by lower part leaf spring 20
It is brazed portion 25 to engage edge 27 and distinguish the region that recess 26 clamps.Recess 26 is distinguished to be formed to be used to prevent from being attached to pricker
The molten solder in weldering portion 25 is flowed out via drawer at movable side supporting slice 22 to Y1 directions.In addition, distinguishing recess 26 also has by swashing
When light melts solder when being heated to brazed portion 25, prevent what heat from transmitting via drawer at movable side supporting slice 22 to Y1 directions
Function.
It is to be adjacent in the state of lower part leaf spring 20 is fixed on mobile member 10 with Wire-wound portion 42 to engage edge 27
The edge of the drawer at movable side supporting slice 22 of configuration.
As shown in figure 5, in brazed portion 25 formed with the connection inner surface 20a of lower part leaf spring 20 and connecting for outer surface 20b
Portion 28.Interconnecting part 28 is the circular hole for penetrating through lower part leaf spring 20.
The engagement edge 27 for being formed at drawer at movable side supporting slice 22 linearly extends along X1-X2 directions.When lower part leaf spring
When 20 drawer at movable side supporting slice 22 is fixed on the lower surface 10a of mobile member 10, as shown in fig. 6, engagement edge 27 is led with composition
The terminal part 41a of line winder 42 across close clearance δ on Y1-Y2 directions it is opposed.Alternatively, fixed in drawer at movable side supporting slice 22
In the state of the lower surface 10a of mobile member 10, engagement edge 27 can also be with the terminal part with being formed Wire-wound portion 42
The state of 41a contacts is opposed with terminal part 41a.That is, it is adjacent to the engagement edge 27 of configuration with Wire-wound portion 42 with leading
The state that line winder 42 has the state in small gap or contacted with Wire-wound portion 42 is right with Wire-wound portion 42
Put.It should be noted that engagement edge 27 is the part of a part for the shape for forming drawer at movable side supporting slice 22.
As the assemble method (manufacture method) of lens driver 1, coated conducting wire 41 is being wound in mobile member 10
Periphery and after forming coil C, coated conducting wire 41 is led to the lower surface 10a of mobile member 10, terminal part 41a is wound in
Wire-wound portion 42 is formed around protuberance 15.Afterwards, the drawer at movable side supporting slice 22 of lower part leaf spring 20 is fixed on movement
The spring fixing portion 12 of the lower surface 10a of component 10.At this time, the engagement edge 27 of lower part leaf spring 20 is relative to composition Wire-wound
The terminal part 41a in portion 42 is opposed to separate the state of the state in small gap or contact.It should be noted that institute here
" opposed " two components (position), i.e., opposed edge 27 and the Wire-wound portion 42 (terminal part 41a) of including said is with the shape of contact
The opposed mode of state.
It is being formed at the brazed portion 25 of drawer at movable side supporting slice 22, the outer surface 20b in the Z2 sides towards lower part leaf spring 20
The solder being provided with before melting.Solder before melting is solder paste (Paste solder), by the drawer at movable side of lower part leaf spring 20
Supporting slice 22 is fixed in the process after the lower surface 10a of mobile member 10, and solder paste is coated on brazed portion 25.At this time,
It is preferred that applied in a manner of a part for solder paste is also contacted with Wire-wound portion 42.It should be noted that solder paste is to soldering
Portion 25 coating can also in the process before drawer at movable side supporting slice 22 is fixed on the lower surface 10a of mobile member 10 into
OK.Alternatively, can also be instead of using solder paste, and the block of the solder before the melting of spherical shape etc. is arranged on interconnecting part 28
(Z2 sides).
Next, irradiating laser from the outer surface 20b sides of lower part leaf spring 20, the i.e. lateral brazed portion 25 of Z2, pass through laser
Energy makes the metal leaf spring of composition brazed portion 25 generate heat, so that solder melts.At this time, preferably swash not directly to solder paste irradiation
Light, and only laser is irradiated to the brazed portion 25 of drawer at movable side supporting slice 22.The solder melted is keeping adhering at brazed portion 25
Extend under the situation of the outer surface 20b of the Z2 sides of lower part leaf spring 20, therefore do not connect even in solder paste with Wire-wound portion 42
In the case of touching, the solder that can also make to have melted fully is attached to the terminal part 41a to form Wire-wound portion 42.Meanwhile
The solder melted to Z1 directions by being used as the hole of interconnecting part 28, while be attached to the inner surface 20a of the Z1 sides of brazed portion 25,
While it is attached to the terminal part 41a for forming Wire-wound portion 42.
It should be noted that as shown in fig. 6, in the state of setting before solder, the coated conducting wire 41 that is removed
A part of terminal part 41a is opposed with interconnecting part 28.Therefore, this of terminal part 41a is partly embedded into and reaches the interior of lower part leaf spring 20
The solder of surface 20a.
Solder (leg) 45 after showing to cool down in Fig. 4 and Fig. 6 and curing.Solder (leg) 45 is set via interconnecting part 28
It is placed in the inner surface 20a and outer surface 20b of lower part leaf spring 20.Moreover, inner surface 20a and this both sides of outer surface 20b and coil of wire
Engaged around portion 42 (terminal part 41a) by solder 45.
Figure 6 illustrates by the drawer at movable side supporting slice 22 of lower part leaf spring 20 on thickness of slab direction two points of median plane Ho.Such as
Shown in Fig. 6, make Z1 directions towards the laser irradiation carried out in the state of gravity direction to brazed portion 25.Therefore, melted
More detour to inner surface 20a sides, for the solder 45 after curing, is present in the position that Z1 sides are leaned on than median plane Ho to solder
The amount put is more by the amount of the position of Z2 sides than median plane Ho than being present in.That is, the pricker adhered in the inner surface 20a of lower part leaf spring 20
The amount of solder 45 of the amount than adhering in outer surface 20b of material 45 is more.
Therefore, for the Wire-wound portion 42 around protuberance 15, the height in the Z1 directions from median plane Ho is preferably made
Spend the height dimension W2 in the Z2 directions that size W1 is more than from median plane Ho.That is, for Wire-wound portion 42, preferably under
The height dimension positioned at the part of the base portion 15a sides of protuberance 15 that the inner surface 20a of portion's leaf spring 20 rises is more than from outer surface 20b
The height dimension positioned at the part of the anterior 15b sides of protuberance 15 risen.
In the solder junction surface 40, leaning on the amount of Z1 sides solder 45 more than median plane Ho, and form Wire-wound
The terminal part 41a in portion 42 is more present in than median plane Ho by Z1 sides, therefore can be by solder 45 by lower part leaf spring 20
Inner surface 20a be reliably connected with Wire-wound portion 42.
In addition, as shown in fig. 6, from coil C extension coated conducting wire 41 terminal part 41a a part by being formed at pricker
The positive downside (Z1 sides and be the lower surface 10a sides of mobile member 10) of the interconnecting part 28 in weldering portion 25.As a result, pass through interconnecting part
28 and to Z1 sides move molten solder contacted with the terminal part 41a of the underface of interconnecting part 28a so that as shown in fig. 6, at end
End 41a and cure after solder 45 between formed contact site 46.By setting contact site 46, solder 45 and end can be increased
The contact site of portion 41a, improves the conduction of lower part leaf spring 20 and coated conducting wire 41.
As described above, in the inner surface 20a sides of lower part leaf spring 20, there are more solder 45, the solder 45 and coil of wire
Contact area around portion 42 increases, therefore even if reducing the height W2 that Z2 sides are leaned on than median plane Ho in Wire-wound portion 42, also can
Enough make solder 45 and the contact condition of terminal part 41a good.Therefore, it is possible to shorten protuberance 15 from the outer surface of lower part leaf spring 20
The protrusion size h that 20b is protruded, can reduce the size of the Z1-Z2 of mobile member 10, can make the entirety of lens driver 1
Slimming.
In addition, as shown in fig. 6, solder 45 is with the inner surface 20a and outer surface 20b of lower part leaf spring 20, this both sides contacts, and
And contacted with Wire-wound portion 42, therefore can be firm by two surfaces inside and outside brazed portion 25 and Wire-wound portion 42 by solder 45
Admittedly it is fixed, it is possible to increase the reliability of the conducting of lower part leaf spring 20 and terminal part 41a.Under being incited somebody to action at brazed portion 25
This both sides of inner surface 20a and outer surface 20b of portion's leaf spring 20 and the contact area of solder 45 ensure larger, preferred interconnecting part
28 aperture area is less than the 50% of the aperture area of brazed portion 25.
In the solder junction surface 40, two surfaces inside and outside brazed portion 25 are consolidated with Wire-wound portion 42 by solder 45
It is fixed, therefore the number of turn for the terminal part 41a to form Wire-wound portion 42 can be reduced.Thus, the height of protuberance 15 can also be reduced
Spend size.
As shown in figure 5, in brazed portion 25, remained between engagement edge 27 and the edge of interconnecting part 28 as lower part
The linking part 25a of a part for leaf spring 20.As shown in fig. 6, in order to make solder 45 be securely attached to inner surface 20a and outer surface
The minimum dimension Wa in 20b and Wire-wound portion 42, preferably linking part 25a is the thickness of slab for the leaf spring material for forming lower part leaf spring 20
Less than 3 times.But if the processability in the stamping procedure of lower part leaf spring 20, etching work procedure is considered, more preferably by minimum ruler
Very little Wa is set as more than 1 times of the thickness of slab of lower part leaf spring 20 and less than 2 times.
Next, another embodiment of the present invention is illustrated.
Hereinafter, pair position identical with the first embodiment marks identical reference numeral and detailed description will be omitted.
Figure 7 illustrates the solder junction surface 40A of second embodiment of the present invention.In the 40A of the solder junction surface,
Following recess is formed as into interconnecting part 28a, which makes being centrally formed as more of the i.e. circular hole of the interconnecting part 28 shown in Fig. 5
Close to engagement edge 27, and a part is open in engagement edge 27.
In the 40A of solder junction surface, the width dimensions L1 of the opening portion of recess, that is, interconnecting part 28a is relative to engagement edge 27
Total length L0 be preferably less than 50%, more preferably less than 30%., can will be with Wire-wound portion 42 if being set as the scope
Opposed engagement edge 27 ensures longer, the bond strength in brazed portion 25 and Wire-wound portion 42 can be maintained higher.
In the solder junction surface 40B of the 3rd embodiment shown in Fig. 8, in brazed portion 25 formed with multiple (two) holes
And become interconnecting part 28b.In the solder junction surface 40C of the 4th embodiment shown in Fig. 9, oriented X1 is formed in brazed portion 25
The recess of side opening and become interconnecting part 28c.
In figs. 8 and 9, interconnecting part 28b and the respective areas of interconnecting part 28c are preferably the 50% of the area of brazed portion 25
Below.
In the solder junction surface 40D of the 5th embodiment shown in Figure 10, in brazed portion 25 formed with engaging respectively
Multiple recesses that edge 27 is open, so as to form interconnecting part 28d.In this case, opening for the interconnecting part 28d in edge 27 is engaged
Total L2 × N (N=3 in Fig. 10) of mouth size L2 is preferably also less than the 50% of the total length L0 for engaging edge 27, more preferably
For less than 30%.
It should be noted that in foregoing each embodiment, to only being moved along optical axis direction driving lens holding member
Dynamic component 10 is illustrated to carry out the lens driver of auto-focusing, however, the present invention is not limited thereto.For example, it is also possible to will
The mobile unit that the present invention is applied to carry out auto-focusing to the direction driving intersected with optical axis direction is so-called so as to carry out
Hand shaking correction lens driver.In this case, usual top leaf spring is divided into two parts, and each top leaf spring leads to
Solder is crossed to engage with Wire-wound portion.
Claims (11)
1. a kind of lens driver, it has and can carry the mobile member of lenticular body, be arranged on the mobile member and branch
Supported between bearing member and by the mobile member to move leaf spring freely along the optical axis direction of the lenticular body, being arranged at institute
The coil of mobile member and the magnet opposed with the coil are stated, which is characterized in that,
The mobile member is provided with protuberance, forms the Wire-wound of the coil in the protuberance so as to formed with leading
Line winder,
The leaf spring have the base portion side towards the protuberance inner surface and towards the protuberance toe lateral it is outer
Surface, and there is the engagement edge adjacent with the Wire-wound portion,
It is described engagement edge it is opposed with the Wire-wound portion in the state of, the inner surface of at least described leaf spring with it is described
Wire-wound portion is engaged by solder.
2. lens driver according to claim 1, wherein,
In the leaf spring formed with the inner surface and the interconnecting part of the outer surface is connected, the solder is via the interconnecting part
The inner surface and the outer surface are arranged at, at least described inner surface is engaged with the Wire-wound portion by the solder.
3. lens driver according to claim 2, wherein,
For the Wire-wound portion, from the inner surface of the leaf spring positioned at the protuberance base portion side portion
Point height dimension be more than from the outer surface positioned at the protuberance toe lateral part height dimension.
4. lens driver according to claim 3, wherein,
The inner surface of the leaf spring and this both sides of the outer surface are engaged with the Wire-wound portion by solder,
The leaf spring the inner surface adhere to the solder amount than the amount of the solder adhered in the outer surface
It is more.
5. lens driver according to any one of claim 2 to 4, wherein,
The interconnecting part is the hole for penetrating through the leaf spring.
6. lens driver according to claim 5, wherein,
Formed with linking part between the engagement edge of the leaf spring and the hole, in the hole and the linking part
The inner surface and the outer surface is both provided with the solder.
7. lens driver according to any one of claim 2 to 4, wherein,
The interconnecting part is recess of the part in the engagement edge opening.
8. a kind of camera model, it is characterised in that have：
Lens driver any one of claim 1 to 7；
The lenticular body kept by the mobile member of the lens driver；And
The capturing element opposed with the lenticular body.
9. a kind of manufacture method of lens driver, the lens driver has the mobile structure that can carry lenticular body
Part, be arranged between the mobile member and supporting member and be along the optical axis side of the lenticular body by mobile member supporting
To the leaf spring moved freely, the coil for being arranged at the mobile member and the magnet opposed with the coil, lens driving
The manufacture method of device is characterized in that,
By the Wire-wound for forming the coil in the protuberance set in the mobile member so as to form Wire-wound portion,
Make the engagement edge of the leaf spring opposed with the Wire-wound portion, the leaf spring has the base portion towards the protuberance
The inner surface of side, towards the outer surface of toe lateral of the protuberance, the connection inner surface and the outer surface interconnecting part,
And the engagement edge,
Solder is melted in the outer surface of the leaf spring, the solder is reached from the outer surface via the interconnecting part
The inner surface, is at least engaged the inner surface with the Wire-wound portion by the solder.
10. the manufacture method of lens driver according to claim 9, wherein,
The interconnecting part is the hole for penetrating through the leaf spring.
11. the manufacture method of lens driver according to claim 9, wherein,
The interconnecting part is recess of the one part in the engagement edge opening.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-209133 | 2016-10-26 | ||
| JP2016209133A JP6738577B2 (en) | 2016-10-26 | 2016-10-26 | Lens driving device, camera module using the lens driving device, and method for manufacturing lens driving device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107991752A true CN107991752A (en) | 2018-05-04 |
| CN107991752B CN107991752B (en) | 2020-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710998858.5A Active CN107991752B (en) | 2016-10-26 | 2017-10-23 | Lens driving device, camera module, and method for manufacturing lens driving device |
Country Status (2)
| Country | Link |
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| JP (1) | JP6738577B2 (en) |
| CN (1) | CN107991752B (en) |
Cited By (3)
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|---|---|---|---|---|
| CN112567278A (en) * | 2018-08-09 | 2021-03-26 | 阿尔卑斯阿尔派株式会社 | Lens driving device, camera module, and method for manufacturing lens driving device |
| US11536925B2 (en) * | 2018-09-17 | 2022-12-27 | Largan Digital Co., Ltd. | Camera module and electronic device |
| WO2023184970A1 (en) * | 2022-04-01 | 2023-10-05 | 苏州昀冢电子科技股份有限公司 | Base integrated with coil, and motor |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022092673A1 (en) * | 2020-11-02 | 2022-05-05 | 마이크로엑츄에이터(주) | Lens assembly |
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| KR20100093778A (en) * | 2009-02-17 | 2010-08-26 | 엘지이노텍 주식회사 | Motor for driving lens |
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| CN112567278A (en) * | 2018-08-09 | 2021-03-26 | 阿尔卑斯阿尔派株式会社 | Lens driving device, camera module, and method for manufacturing lens driving device |
| CN112567278B (en) * | 2018-08-09 | 2023-04-14 | 阿尔卑斯阿尔派株式会社 | Lens driving device, camera module, and method for manufacturing lens driving device |
| US11536925B2 (en) * | 2018-09-17 | 2022-12-27 | Largan Digital Co., Ltd. | Camera module and electronic device |
| US11852887B2 (en) | 2018-09-17 | 2023-12-26 | Largan Digital Co., Ltd. | Camera module and electronic device |
| WO2023184970A1 (en) * | 2022-04-01 | 2023-10-05 | 苏州昀冢电子科技股份有限公司 | Base integrated with coil, and motor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6738577B2 (en) | 2020-08-12 |
| CN107991752B (en) | 2020-07-17 |
| JP2018072449A (en) | 2018-05-10 |
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