CN103312108A - Voice coil motor and manufacturing method thereof - Google Patents
Voice coil motor and manufacturing method thereof Download PDFInfo
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- CN103312108A CN103312108A CN 201210069270 CN201210069270A CN103312108A CN 103312108 A CN103312108 A CN 103312108A CN 201210069270 CN201210069270 CN 201210069270 CN 201210069270 A CN201210069270 A CN 201210069270A CN 103312108 A CN103312108 A CN 103312108A
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- bearing seat
- voice coil
- load bearing
- coil motor
- sidewall
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Abstract
The invention discloses a voice coil motor, which comprises a fixed unit, a movable unit, a bearing seat and a shell, wherein an accommodating space is arranged in the geometric center of the fixed unit; the movable unit is movably accommodated in the accommodating space; the fixed unit is born on the bearing seat; the shell is used for accommodating the movable unit, the fixed unit and the bearing seat; at least one side wall of the bearing seat is convexly provided with at least one bump; the bump is made of plastic material; at least one side wall of the shell is provided with a groove; meanwhile, at least one punched hole is formed corresponding to the position of the bump of the bearing seat; at least one bump of the bearing body penetrates through at least one punched hole of the shell respectively; hot melt treatment is performed on the at least one bump to form at least one salient point so as to fixedly connect the shell with the bearing seat. The invention also relates to a manufacturing method of the voice coil motor.
Description
Technical field
The present invention relates to a kind of voice coil motor and manufacture method thereof.
Background technology
Voice coil motor is usually used in driving in the camera model camera lens.Voice coil motor utilizes the Electromagnetic Drive principle of hot-wire coil and magnetite to drive camera lens, it generally includes base, fixing fitted tube, movable accommodating cylinder, and one in coil and the magnetite is fixed in fixedly fitted tube, another is fixed in the movable accommodating cylinder outer wall, and camera lens can be contained in this movable accommodating cylinder.Be anti-electromagnetic leakage and electromagnetism interference, voice coil motor also has electromagnetic shielding shell usually, and it is covered with the voice coil motor body in wherein.
Existing a kind of voice coil motor housing is for being fit to the voice coil motor body of multiple size, and four sidewalls of housing are made turnover type usually, and namely each sidewall all can be done little distortion to adapt to the voice coil motor body of different size.Yet such voice coil motor housing is weaker to the positioning accuracy of voice coil motor body, and the voice coil motor housing may become flexible and come off.
Summary of the invention
In view of this, be necessary to provide a kind of voice coil motor and manufacture method thereof that prevents that housing from coming off.
A kind of voice coil motor comprises a fixed cell, an active unit, a load bearing seat and a housing.The geometric center of described fixed cell has spatial accommodation.Described active unit is contained in the described spatial accommodation versatilely.Described fixed cell is carried on the described load bearing seat.Described housing comprises a upper wall and a plurality of from the downward sidewall of this upper wall bending extension, and described upper wall and described a plurality of sidewall surround the voice coil motor containing cavity at a no end jointly and be used for accommodating described active unit, fixed cell and load bearing seat.Convex with at least one salient point at least one sidewall of described load bearing seat.Described salient point adopts plastic material to make.At least one sidewall of described housing offers a groove, and the salient point position of corresponding described load bearing seat offers at least one punching simultaneously.At least one salient point of described supporting body is housed in respectively in the punching of described housing accordingly, and described at least one salient point is handled formation by the heat mode of melting, with described housing and described load bearing seat Joint.
A kind of method of making above-mentioned voice coil motor, it may further comprise the steps:
One fixed cell is provided, one active unit, one load bearing seat and a housing, the geometric center of described fixed cell has spatial accommodation, described housing comprises a upper wall and a plurality of from the downward sidewall of this upper wall bending extension, described upper wall and described a plurality of sidewall surround the voice coil motor containing cavity at a no end jointly and are used for accommodating described active unit, fixed cell and load bearing seat, convex with at least one salient point at least one sidewall of described load bearing seat, described salient point adopts plastic material to make, at least one sidewall of described housing offers a groove, and the salient point position of the corresponding described load bearing seat of at least one sidewall of described housing offers at least one punching;
Described active unit is assembled in the spatial accommodation of described fixed cell, and with on the fixing described load bearing seat of described fixed cell;
Pull the sidewall of described housing, so that corresponding being housed in the punching of described housing respectively of at least one salient point on the sidewall of described load bearing seat, described at least one salient point is handled formation by the heat mode of melting, with described housing and described load bearing seat Joint.
With respect to prior art, convex with at least one salient point at least one sidewall of the described load bearing seat of described voice coil motor, the salient point position of the corresponding described load bearing seat of described housing offers at least one punching, described at least one salient point is housed in respectively in the punching of described housing, described salient point adopts plastic material to make, and by the heat mode of melting described salient point is melted, with described housing and described load bearing seat Joint.Therefore, can prevent that housing from coming off.Simultaneously, at least one sidewall of described housing offers a groove, can make described housing can have elasticity, therefore, when assemble case, can conveniently salient point be fastened in the punching.
Description of drawings
Fig. 1 is the solid assembling schematic diagram of the voice coil motor of embodiment of the present invention.
Fig. 2 is the decomposing schematic representation of Fig. 1.
Fig. 3 is the schematic diagram of the fixed mount among Fig. 2.
Fig. 4 is the schematic diagram that the voice coil motor of embodiment of the present invention decomposes.
Fig. 5 is the assembling flow path figure of the voice coil motor of embodiment of the present invention.
The main element symbol description
| |
10 |
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11 |
| Central through hole | 110 |
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12 |
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121 |
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13a |
| Following |
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| Light hole | |
| 130 | |
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131 |
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132 |
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133 |
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14 |
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141 |
| First |
1410 |
| Projection | 1411 |
| Accommodation hole | 1412 |
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142 |
| Terminals | 1420 |
| The vertical portion | 1421 |
| Kink | 1422 |
| Fixed |
15 |
| Fixed |
151 |
| Second |
1510 |
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1511 |
| Following |
1512 |
| Put |
1513 |
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152 |
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16 |
| Following |
161 |
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162 |
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163 |
Following embodiment will further specify the present invention in conjunction with above-mentioned accompanying drawing.
Embodiment
See also Fig. 1 to Fig. 4, the voice coil motor 10 that embodiment of the present invention provides is used for driving a camera lens module (not shown) and moves to realize focusing or zoom function along the optical axis direction of paralleloscope head module.
Described voice coil motor 10 comprises shell fragment 13a on a housing 11, the loam cake 12,, once shell fragment 13b, an active unit 14, a fixed cell 15, an and load bearing seat 16.
Described housing 11 comprises that a upper wall 101 and four extend downward sidewall 102 from these upper wall 101 bendings.This upper wall 101 offers a central through hole 110, and the voice coil motor containing cavity that this upper wall 101 and this four sidewalls 102 surround a no end jointly is used for accommodating described loam cake 12, last shell fragment 13a, following shell fragment 13b, active unit 14, fixed cell 15 and load bearing seat 16.In the present embodiment, described housing 10 can be made by magnetic shielding materials such as dilvals, to eliminate external electromagnetic to the interference of described voice coil motor 10 and to prevent the work of its external electronic components of electromagnetic effect of described voice coil motor 10.Junction between per two adjacent sidewalls 102 is formed with groove 104, so that described housing 10 can have elasticity.Four sidewalls 102 wherein two relative sidewalls 102 form punching 105 respectively away from an end of described upper wall 101.
Described loam cake 12 is roughly square structure, and four jiaos respectively arrange one and go up location hole 121.The junction of per two adjacent sidewalls is formed with first chamfered corners 122 in four sidewalls of described loam cake 12.In the present embodiment, described loam cake 12 adopts non-magnet_conductible material to make.
Described upward shell fragment 13a is square structure, and the center offers a light hole 130.Have four first location holes 131 around described light hole 130.
The structure of described shell fragment 13b down and the described structural similarity of going up shell fragment 13a: have 130 4 first location holes 131 of a light hole and four second location holes 132.Four first location holes 131 are positioned at four corners of shell fragment 13a down and away from described light hole 130.
The junction of per two adjacent sidewalls all is formed with second chamfered corners 133 in four sidewalls of described upper and lower shell fragment 13a, 13b.
Described active unit 14 comprises an adjustable shelf 141 and a coil 142.Described adjustable shelf 141 is for having to accommodate circle first spatial accommodation 1410 of camera lens module, and described adjustable shelf 141 is placed between the described shell fragment 13a of going up and the following shell fragment 13b, so that described adjustable shelf 141 is suspended in the described fixed mount 151.Described adjustable shelf 141 is cube-shaped, and the junction of per two adjacent sidewalls is formed with the 3rd chamfered corners 140 in four sidewalls of described adjustable shelf 141.Described coil 142 is wrapped on the periphery of described adjustable shelf 141.
Described fixed cell 15 comprises a fixed mount 151 and four magnet 152.The shape of the shape of described fixed mount 151 and adjustable shelf 141 is roughly the same, and the geometric center of described fixed mount 151 has second spatial accommodation 1510 that holds active unit 14.The junction of per two adjacent sidewalls is formed with the 4th chamfered corners 150 in four sidewalls of described fixed mount 151.Described coil 142 is wrapped on the periphery of described adjustable shelf 141.
Described fixed mount 151 is arranged between the described shell fragment 13a of going up and the following shell fragment 13b.Described fixed mount 151 has been extended with four last reference columns 1511 near first location hole 131 of shell fragment 13a on the described upper end correspondence that goes up shell fragment 13a is vertical with last location hole 121 positions of described loam cake 12.Go up the last location hole 121 that reference column 1511 passes first location hole 131 of shell fragment 13a respectively and stretches into loam cake 12, by gluing process shell fragment 13a is fixed between fixed mount 151 and the loam cake 12 again for described four.Described fixed mount 151 offers four following location holes 1512 near the described bottom of shell fragment 13b down.
In addition, offer one respectively on four sidewalls of described fixed mount 151 and put magnetic portion 1513, described four magnet 152 are separately positioned on to be put in the magnetic portion 1513 and the coil 142 of corresponding described active unit 14.
Produce magnetic field force between the coil 142 of described magnet 152 and energising, magnetic field force drives described adjustable shelf 141 motions, and the described adjustable shelf 141 of motion drives camera lens module motion in second spatial accommodation 1510 together.Described loam cake 12 is used for when last shell fragment 13a is subjected to elastic deformation on the plane perpendicular to optical axis, and the described camera lens module that prevents produces displacement on the plane perpendicular to optical axis.
Described load bearing seat 16 is cube structure, and it adopts plastic material to make.The junction of per two adjacent sidewalls is formed with the 5th chamfered corners 160 in four sidewalls of described load bearing seat 16.The corner location of described load bearing seat 16 respectively has a following reference column 161.Described down reference column 161 stretches into down in the following location hole 1512 of first location hole 131 of shell fragment 13b and described fixed mount 151 and by gluing process and will descend shell fragment 13b to be fixed between fixed mount 151 and the load bearing seat 16.Four sidewalls of described load bearing seat 16, wherein two relative sidewalls convex with two projectioies 162 respectively.In the present embodiment, described protruding 162 is one-body molded with described load bearing seat 16, is used for being fastened on the punching 105 of described housing 11.Carry out the heat mode of melting to described at least one protruding 162 and handle to form at least one salient point 163, with described housing 11 and described load bearing seat 16 Joints.In the practical application, described protruding 162 with two of described load bearing seats 16 minutes assembly independently, made by two kinds of unlike materials respectively, and described protruding 162 made by plastic material, be formed on the sidewall of load bearing seat 16, be not limited to present embodiment.
Be understandable that, described groove 104 is not limited to be arranged on the junction between two adjacent sidewalls 102 of described housing 11, described groove 104 also can be arranged on any portion other than connected portion position of housing 11 sidewalls 102, therefore, can save and describedly uncap 12, go up shell fragment 13a, shell fragment 13b, active unit 14, fixed cell 15 and load bearing seat 16 arrange first chamfered corners 122, second chamfered corners 133, the 3rd chamfered corners 140, the 4th chamfered corners 15 and the 5th chamfered corners 160 respectively down, have simplified processing procedure.
Also be understandable that, the quantity that is opened in the described groove 104 of the junction between two adjacent sidewalls 102 of described housing 11 also is not limited to four, it also can be arranged to one, two, more than three or four, and the quantity of first chamfered corners 122, second chamfered corners 133, the 3rd chamfered corners 140, the 4th chamfered corners 15 and the 5th chamfered corners 160 all the quantity with described groove 104 is identical.
In the practical application, described voice coil motor 10 also can save described loam cake 12, go up shell fragment 13a and following shell fragment 13b, to save production cost.
Be understandable that described protruding 162 also are not limited to two with the quantity of punching 105, it can arrange according to demand and arbitrarily, as one or more is set respectively.
See also Fig. 5, the manufacture method of the voice coil motor 10 that embodiment of the present invention provides, it may further comprise the steps:
S101: earlier described first location hole 131 of shell fragment 13b down is set on the following reference column 161 of described load bearing seat 16, again described active unit 14 is placed on down on the shell fragment 13b, subsequently the following location hole 1512 of described fixed mount 151 and the following reference column 161 of described load bearing seat 16 are fastened, and by gluing process described down shell fragment 13b is fixed between described fixed mount 151 and the described load bearing seat 16, described active unit 14 is housed in second spatial accommodation 1510 of fixed mount 151, and described fixed mount 151 is carried on the described load bearing seat 16;
S102: described first location hole 131 of going up shell fragment 13a is set on the last reference column 1511 of described fixed mount 151, subsequently the last reference column 1511 of described fixed mount 151 and the last location hole 121 of described loam cake 12 are fastened, and by gluing process the described shell fragment 13a that goes up is fixed between described fixed mount 151 and the described loam cake 12;
S103: the sidewall 102 of pulling described housing 11, so that the punching 105 that four projectioies 162 of the sidewall of described load bearing seat 16 are passed described housing 11 respectively, carry out the heat mode of melting to described at least one protruding 162 and handle to form at least one salient point 163, with described housing 11 and described load bearing seat 16 Joints.Described first chamfered corners 122, second chamfered corners 133, the 3rd chamfered corners 140, the 4th chamfered corners 15 and the 5th chamfered corners 160 are exposed in the air by the groove 104 of described housing 11.
Though the present invention discloses as above with preferred embodiments,, it is not in order to limiting the present invention, and in addition, those skilled in the art can also do other and change etc. in spirit of the present invention.Certainly, the variation that these are done according to spirit of the present invention all should be included within the present invention's scope required for protection.
Claims (10)
1. voice coil motor, comprise a fixed cell, one active unit, one load bearing seat and a housing, the geometric center of described fixed cell has spatial accommodation, described active unit is contained in the described spatial accommodation versatilely, described fixed cell is carried on the described load bearing seat, described housing comprises a upper wall and a plurality of from the downward sidewall of this upper wall bending extension, described upper wall and described a plurality of sidewall surround the voice coil motor containing cavity at a no end jointly and are used for accommodating described active unit, fixed cell and load bearing seat, it is characterized in that: convex with at least one projection at least one sidewall of described load bearing seat, described projection adopts plastic material to make, at least one sidewall of described housing offers a groove, the raised position of the corresponding described load bearing seat of at least one sidewall of described housing offers at least one punching, at least one projection of described supporting body is housed in respectively at least one punching of described housing, described at least one projection is carried out the heat mode of melting handle to form at least one salient point, with described housing and described load bearing seat Joint.
2. voice coil motor as claimed in claim 1, it is characterized in that described fixed cell comprises a fixed mount and a plurality of magnet, described magnet is fixed on the sidewall of described fixed mount, described active unit comprises an adjustable shelf and a coil, and described coil is wrapped on the periphery of described adjustable shelf.
3. voice coil motor as claimed in claim 2, it is characterized in that, junction in the sidewall of described housing between per two adjacent sidewalls is formed with groove, the junction of per two adjacent sidewalls of described fixed mount, adjustable shelf and load bearing seat all is formed with a chamfered corners, and the chamfered corners of described fixed mount, adjustable shelf and load bearing seat all is exposed in the air by described groove.
4. voice coil motor as claimed in claim 1, it is characterized in that, described voice coil motor further comprises shell fragment on, the described shell fragment of going up offers a plurality of first location holes, corresponding a plurality of described first location holes of described fixed mount offer a plurality of reference columns, and described first location hole and reference column match and make the described end that shell fragment is fixed on described fixed mount of going up.
5. voice coil motor as claimed in claim 4 is characterized in that, described voice coil motor further comprises a loam cake, and described loam cake has last location hole, and described reference column stretches into described going up in the location hole so that described loam cake is fixed on described going up on the shell fragment.
6. voice coil motor as claimed in claim 5 is characterized in that, described loam cake adopts non-magnet_conductible material to make.
7. voice coil motor as claimed in claim 4, it is characterized in that described voice coil motor further comprises shell fragment, described shell fragment down is fixed on the other end of described fixed mount, described adjustable shelf is placed on described going up between shell fragment and the following shell fragment, so that described adjustable shelf is suspended in the described fixed mount.
8. voice coil motor as claimed in claim 7, it is characterized in that, described supporting body has a plurality of reference columns down, described fixed mount offers a plurality of location holes down, described down shell fragment has a plurality of corresponding described a plurality of location holes of reference column down respectively, and described reference column down stretches in the location hole of described location hole down and described shell fragment down so that described shell fragment down is fixed between described fixed mount and the supporting body.
9. voice coil motor as claimed in claim 1 is characterized in that, described salient point and described load bearing seat are one-body molded.
10. voice coil motor manufacture method, it may further comprise the steps:
One fixed cell is provided, one active unit, one load bearing seat and a housing, the geometric center of described fixed cell has spatial accommodation, described housing comprises a upper wall and a plurality of from the downward sidewall of this upper wall bending extension, described upper wall and described a plurality of sidewall surround the voice coil motor containing cavity at a no end jointly and are used for accommodating described active unit, fixed cell and load bearing seat, convex with at least one projection at least one sidewall of described load bearing seat, described projection adopts plastic material to make, at least one sidewall of described housing offers a groove, and the raised position of the corresponding described load bearing seat of at least one sidewall of described housing offers at least one punching;
Described active unit is assembled in the spatial accommodation of described fixed cell, and with on the fixing described load bearing seat of described fixed cell;
With the corresponding punching of passing described housing respectively of at least one projection on the sidewall of described load bearing seat, described at least one projection is carried out the heat mode of melting handle to form at least one salient point, thereby with described housing and described load bearing seat Joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210069270.9A CN103312108B (en) | 2012-03-16 | 2012-03-16 | Voice coil motor and manufacture method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210069270.9A CN103312108B (en) | 2012-03-16 | 2012-03-16 | Voice coil motor and manufacture method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103312108A true CN103312108A (en) | 2013-09-18 |
| CN103312108B CN103312108B (en) | 2016-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210069270.9A Expired - Fee Related CN103312108B (en) | 2012-03-16 | 2012-03-16 | Voice coil motor and manufacture method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105591504A (en) * | 2013-11-13 | 2016-05-18 | 厦门新鸿洲精密科技有限公司 | Assembling process for voice coil motor assembly coil and elastic sheet |
| CN106655652A (en) * | 2016-11-14 | 2017-05-10 | 信利光电股份有限公司 | Assembling structure and assembling method for carrier, coil and lower spring of voice coil motor, and voice coil motor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101068091B (en) * | 2007-06-13 | 2010-09-01 | 宜兴市贵鑫磁电高科技有限公司 | Ultrasmall type voice coil motor |
| CN101562388B (en) * | 2008-04-16 | 2012-05-23 | 鸿富锦精密工业（深圳）有限公司 | Voice coil motor |
| US7612957B1 (en) * | 2009-04-13 | 2009-11-03 | E-Pin Optical Industry Co., Ltd. | Voice coil driving auto-focus lens module |
| CN101882852B (en) * | 2009-05-07 | 2013-08-21 | 鸿富锦精密工业（深圳）有限公司 | Voice coil motor |
| CN102111056A (en) * | 2009-12-24 | 2011-06-29 | 鸿富锦精密工业（深圳）有限公司 | Voice coil motor and camera module |
-
2012
- 2012-03-16 CN CN201210069270.9A patent/CN103312108B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105591504A (en) * | 2013-11-13 | 2016-05-18 | 厦门新鸿洲精密科技有限公司 | Assembling process for voice coil motor assembly coil and elastic sheet |
| CN106655652A (en) * | 2016-11-14 | 2017-05-10 | 信利光电股份有限公司 | Assembling structure and assembling method for carrier, coil and lower spring of voice coil motor, and voice coil motor |
| CN106655652B (en) * | 2016-11-14 | 2020-06-05 | 信利光电股份有限公司 | Carrier, coil and lower elastic sheet assembly structure and method and voice coil motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103312108B (en) | 2016-12-14 |
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