CN104868629A - FPC coil used for VCM motor - Google Patents
FPC coil used for VCM motor Download PDFInfo
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- CN104868629A CN104868629A CN201510312246.7A CN201510312246A CN104868629A CN 104868629 A CN104868629 A CN 104868629A CN 201510312246 A CN201510312246 A CN 201510312246A CN 104868629 A CN104868629 A CN 104868629A
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- fpc
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- vcm motor
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Abstract
The invention provides a FPC coil used for a VCM motor, and belongs to the field of electromagnetism. The coil solves technical problems in the prior art that a coil of a VCM motor is low in thinning degree, complex in wiring, insufficient in precision, and low in controllable degree, and current passing through the coil is not stable enough. The technical key points are that the coil comprises at least two FPC plane layers, a FPC conducting layer is between the two adjacent FPC plane layers, and the FPC conducting layer makes the FPC plane layers connected in series. The thickness of the FPC coil is much smaller than that of a copper coil, so that thinning degree of a product is improved.
Description
Technical field
The present invention relates to a kind of coil of motor, particularly relate to the FPC coil that a kind of VCM motor uses.
Background technology
VCM (Voice Coil Motor), the voice coil motor inside electronics is the one of motor because principle and loud speaker similar, so be called voice coil motor, there is high frequency sound, high-precision feature.Its cardinal principle is in a permanent-magnetic field, by changing the size of the direct current of motor interior loop, carrys out the stretch position of control spring sheet, thus drive moves up and down.Mobile phone camera uses VCM to realize automatic focusing function widely, can the position of adjustable lens by VCM, presents image clearly.
The VCM structure slightly difference of different vendor, roughly divide several large parts as follows:
Shield Case: shell
Frame: support
F.Spacer: front pad, for insulation
F.Spring: front reed, for carrying carrier, trimming moment
Yoke: for fixing other assemblies, magnetic conduction
Magnet: magnetite, produces permanent-magnetic field
Coil: coil, energising produces driving moment
Carrier: carrier, for carrying camera lens
B.Spacer: rear pad, for insulation
B.Spring: rear spring, for carrying carrier, trimming moment
Base: base, for fixed part.
VCM motor industry is through 02, and after the low-key exploitation of 03 two years, in 05 year along with SHARP, SONY, the lofty tone of Samsung is got involved and enters substantial developing stage.
But the coil of existing VCM motor, use copper coil, thickness is at more than 2mm, and slimming degree is low; Meanwhile, wiring is comparatively complicated, accurate not; Stable not by electric current, controllable degree is low.
Summary of the invention
The invention provides the FPC coil that a kind of VCM motor uses, low with the coil slimming degree solving VCM motor in prior art, wiring is comparatively complicated, accurate not, the technical problem stable not by electric current, controllable degree is low.
To achieve these goals, the technical solution used in the present invention is: the FPC coil that a kind of VCM motor uses, and comprise at least two-layer FPC plane layer, FPC conductting layer is placed between the FPC plane layer of adjacent two layers, and FPC conductting layer is by FPC plane layer series connection conducting.
Further, described FPC plane layer forms primarily of FPC coiling, two end points portions of this coiling have via, described FPC conductting layer forms primarily of FPC straightway, two end points portions of this FPC straightway also have via, a via of described FPC straightway is connected with the via of a FPC plane layer, and another via of this FPC straightway is connected with the via of another FPC plane layer, by this two-layer FPC plane layer series connection conducting.
Further, each layer FPC plane layer carries out conducting by holing and sinking copper-plated mode.
Further, each FPC plane layer and FPC conductting layer press together to form FPC coil.
Further, each FPC plane layer and each FPC conductting layer are all arranged on loading plate.
Further, there is following functional relation between the number of plies of coiling electromagnetic force and FPC plane layer:
F＝NBiL
Wherein:
F---coiling electromagnetic force
N---the number of plies of FPC plane layer
B---air gap flux density
I---coil passes through electric current
L---the length of arrangement wire of every layer of FPC plane layer.
Beneficial effect: the present invention uses the FPC plane layer of series connection conducting to be pressed into FPC coil to substitute traditional copper coil, makes the thickness of this FPC coil well below copper coil, improves the slimming degree of product; Pressing FPC plane layer forms FPC coil, and make wiring more carefully and neatly done, accurate, place on line and live width line-spacing tolerance can reach ± 0.01mm, and use FPC coil, makes the electric current that passes through more stable, easily controls; FPC coil line has PI to carry itself and carrier to be assembled be more prone to.
Accompanying drawing explanation
Fig. 1 is the FPC plane layer in embodiment 1;
Fig. 2 is the FPC conductting layer in embodiment 1;
Fig. 3 is the 2nd FPC plane layer in embodiment 1;
Fig. 4 is the 2nd FPC conductting layer in embodiment 1;
Fig. 5 is the 3rd FPC plane layer in embodiment 1;
Fig. 6 is the assembling schematic diagram of the FPC coil that the VCM motor in embodiment 1 uses.
Wherein: 1.FPC plane layer, 11.FPC coiling, 2.FPC conductting layer, 21.FPC straightway, 3. loading plate, P1_1. via, P1_2. via, C1_1. via, C1_2. via, P2_1. via, P2_2. via, C2_1. via, C2_2. via, P3_1. via, P3_2. via.
Embodiment
In order to set forth the invention further, below in conjunction with drawings and the specific embodiments, the present invention is further described.
Embodiment one:
As shown in figures 1 to 6, the FPC coil that a kind of VCM motor uses, comprise at least two-layer FPC plane layer 1, FPC conductting layer 2 is placed between the FPC plane layer 1 of adjacent two layers, FPC plane layer 1 is connected conducting by FPC conductting layer 2, and each via is arranged by holing and sinking copper-plated mode, makes each layer FPC plane layer 1 can carry out conducting by holing and sinking copper-plated mode, thus each FPC plane layer 1 presses together to form FPC coil with FPC conductting layer 2, this pressing uses hot pressing mode.
Concrete, its realization series connection conducting structure of the FPC coil that VCM motor uses is, described FPC plane layer 1 forms primarily of FPC coiling 11, two end points portions of this coiling have via, described FPC conductting layer 2 forms primarily of FPC straightway, two end points portions of this FPC straightway also have via, because FPC conductting layer 2 is placed between two FPC plane layers 1, FPC straightway via is connected with the via of a FPC plane layer 1, another via of this FPC straightway is connected with the via of another FPC plane layer 1, the FPC plane layer 1 this being positioned at these FPC conductting layer 2 both sides is connected conducting.
In the present embodiment, setting FPC plane layer is 3 layers, be respectively a FPC plane layer, the 2nd FPC plane layer and the 3rd FPC plane layer, wherein the via of a FPC plane layer is respectively via P1_1 and via P1_2, the via of the 2nd FPC plane layer is respectively via P2_1 and via P2_2, and the via of the 3rd FPC plane layer is respectively via P3_1 and via P3_2.
Setting FPC conductting layer is two-layer, be respectively a FPC conductting layer, the 2nd FPC conductting layer, wherein, the via of the one FPC conductting layer is respectively via C1_1 and via C1_2, and the via of the 2nd FPC conductting layer is respectively via C2_1 and via C2_2.
Wherein, via P1_2 and via C1_2 conducting, via C1_1 and via P2_1 conducting; Via P2_2 and via C2_2 conducting, via C2_1 and via P3_1 conducting.
Voice coil motor is mainly used in optical lens, the size of FPC is determined according to camera lens different size, live width, the line-spacing >=0.03mm of the every bar circuit of FPC, FPC size can calculate FPC winding turns according to live width, line-spacing when fixing, such as: FPC is of a size of 10mm*10mm, middle reserved diameter d=5mm circle position, then wiring width is 5mm, wiring live width line-spacing is 0.03mm, then coil number=5/0.03/2=83 circle.
The FPC coil of the VCM motor use of the present embodiment, each FPC plane layer and each FPC conductting layer are all arranged on loading plate, and there is following functional relation between the number of plies of coiling electromagnetic force and FPC plane layer:
F＝NBiL
Wherein:
F---coiling electromagnetic force
N---the number of plies of FPC plane layer
B---air gap flux density
I---coil passes through electric current
L---the length of arrangement wire of every layer of FPC plane layer.
Embodiment two:
It is identical with the technical scheme of embodiment 1, and difference is: in the present embodiment, and setting FPC plane layer is 2 layers, is a FPC plane layer, and setting FPC conductting layer is one deck, is a FPC conductting layer (not shown).
Embodiment three:
It is identical with the technical scheme of embodiment 1, and difference is: in the present embodiment, and setting FPC plane layer is 10 layers, and setting FPC conductting layer is 9 layers (not shown).
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (6)
1. a FPC coil for VCM motor use, it is characterized in that, comprise at least two-layer FPC plane layer, FPC conductting layer is placed between the FPC plane layer of adjacent two layers, and FPC conductting layer is by FPC plane layer series connection conducting.
2. the FPC coil of VCM motor use as claimed in claim 1, it is characterized in that, described FPC plane layer forms primarily of FPC coiling, two end points portions of this coiling have via, described FPC conductting layer forms primarily of FPC straightway, two end points portions of this FPC straightway also have via, a via of described FPC straightway is connected with the via of a FPC plane layer, and another via of this FPC straightway is connected with the via of another FPC plane layer, by this two-layer FPC plane layer series connection conducting.
3. the FPC coil that uses of VCM motor as claimed in claim 1 or 2, is characterized in that, each layer FPC plane layer carries out conducting by holing and sinking copper-plated mode.
4. the FPC coil of VCM motor use as claimed in claim 3, it is characterized in that, each FPC plane layer and FPC conductting layer press together to form FPC coil.
5. the FPC coil of VCM motor use as claimed in claim 4, it is characterized in that, each FPC plane layer and each FPC conductting layer are all arranged on loading plate.
6. the FPC coil of VCM motor use as claimed in claim 1 or 2, is characterized in that there is following functional relation between the number of plies of coiling electromagnetic force and FPC plane layer:
F＝NBiL
Wherein:
F---coiling electromagnetic force
N---the number of plies of FPC plane layer
B---air gap flux density
I---coil passes through electric current
L---the length of arrangement wire of every layer of FPC plane layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510312246.7A CN104868629A (en) | 2015-06-08 | 2015-06-08 | FPC coil used for VCM motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510312246.7A CN104868629A (en) | 2015-06-08 | 2015-06-08 | FPC coil used for VCM motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104868629A true CN104868629A (en) | 2015-08-26 |
Family
ID=53914243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510312246.7A Pending CN104868629A (en) | 2015-06-08 | 2015-06-08 | FPC coil used for VCM motor |
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| CN (1) | CN104868629A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4668884A (en) * | 1984-04-27 | 1987-05-26 | Sanyo Electric Co | Brushless motor |
| CN1736013A (en) * | 2002-11-18 | 2006-02-15 | 精工爱普生株式会社 | Stator of brushless motor, brushless motor having same, and coil structure |
| CN201323481Y (en) * | 2008-12-26 | 2009-10-07 | 桂林电器科学研究所 | Printing armature winding structure |
| CN102969806A (en) * | 2011-08-31 | 2013-03-13 | 建准电机工业股份有限公司 | Motor stator |
| CN204178891U (en) * | 2014-10-21 | 2015-02-25 | 苏州浩创信息科技有限公司 | A kind of solenoid wire-wrap board |
| CN204741355U (en) * | 2015-06-08 | 2015-11-04 | 大连吉星电子有限公司 | FPC coil that VCM motor used |
-
2015
- 2015-06-08 CN CN201510312246.7A patent/CN104868629A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4668884A (en) * | 1984-04-27 | 1987-05-26 | Sanyo Electric Co | Brushless motor |
| CN1736013A (en) * | 2002-11-18 | 2006-02-15 | 精工爱普生株式会社 | Stator of brushless motor, brushless motor having same, and coil structure |
| CN201323481Y (en) * | 2008-12-26 | 2009-10-07 | 桂林电器科学研究所 | Printing armature winding structure |
| CN102969806A (en) * | 2011-08-31 | 2013-03-13 | 建准电机工业股份有限公司 | Motor stator |
| CN204178891U (en) * | 2014-10-21 | 2015-02-25 | 苏州浩创信息科技有限公司 | A kind of solenoid wire-wrap board |
| CN204741355U (en) * | 2015-06-08 | 2015-11-04 | 大连吉星电子有限公司 | FPC coil that VCM motor used |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150826 |
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| RJ01 | Rejection of invention patent application after publication |