A kind of FPC components
Technical field
The utility model is related to wiring board techniques field, and in particular to a kind of FPC components.
Background technology
Market today, each electronic product all starts collection miniaturization, slimming and high performance with all over the body, utilizing flexibility print
Circuit board processed, i.e. FPC plates (FPC is Flexible Printed Circuit abbreviation, refers generally to FPC) and therewith
The FPC connector matched reduces space, mitigates weight, and reduction assembly cost turns into increasingly becomes the primary choosing of people
Select.This FPC connector extensive use and computer industry, household electrical appliance, automatic control equipment, in particular for small volume, light weight
Consumer electronics product, such as digital camera, mobile phone product, it is ensured that the efficient and signal of its data transfer is stably connected with.
FPC is the one kind being widely used in circuit panel products, particularly it have it is frivolous, can free bend, winding, low
The characteristics such as voltage, low consumption, low-power, are designed by embedded circuit, it is inlayed a large amount of close elements in the confined space.From
And flexible circuit is formed, with advantageous features such as the light, small volumes of easy for installation, fold wt, break through traditional interconnection technique.
A kind of existing FPC combining structures on mobile phone side key, including FPC bodies (flexible PCB), pacify thereon
Equipped with steel disc, the winding displacement circuit of some extensions is set on FPC circuit boards, and covered with screened film on FPC circuit boards, with
Ensure the stabilization of line transmission and prevent from disturbing other electronic components, as shown in figure 1, in this FPC product structures, wherein shielding
Cover the side of film 03 with the steel disc 01 of FPC circuit boards to intersect, and lower section is crimped on by steel disc 01, this structure setting passes through laying
One layer of conducting resinl 02 makes steel disc 01 keep closely intersecting with screened film 03, but because the top layer 04 of screened film 03 is very thin, only 7 μ
M, when FPC plates are bent, and the support strength in the FPC region of steel disc 01 is big, then is easily bent along its edge, now FPC circuits
The pull-up of screened film top layer 04 so that being layered makes steel disc 04 can not keep being fixedly connected again, can be caused the side of steel disc 04 by the steel disc of plate
Edge is tilted, or even is gradually expanded and FPC strippings, it is impossible to have deviation, influence assembling effect after correct quick assembling or assembling so that
This infrastructure product performance is unstable, there is quality hidden danger.
Utility model content
Therefore, the technical problems to be solved in the utility model is to make steel when overcoming FPC products of the prior art to bend
Piece is layered with screened film, so that the edge of steel disc 04 tilts or peeled off FPC surfaces, so that the technological deficiency of actual assembled is influenceed, from
And each component holding structure stabilization on FPC can be made and occur without alice by providing one kind, and one kind of assembling effect is not influenceed
FPC components.
In order to solve the above technical problems, a kind of FPC components of the utility model offer, including be made up of substrate and copper foil
Cover layer on FPC bodies and the setting FPC bodies, the FPC bodies include installation portion, and outside by the installation portion
At least one extension of extension, in addition to the support member being arranged on the installation portion and it is arranged at least one described extension
EMI screened films in portion, set the gap with 0.5 ㎜ -1 ㎜ between the EMI screened films and the support member.
As a kind of preferred scheme, the EMI screened films are between one end of the support member and the support member
Clearance distance is 0.5 ㎜.
As a kind of preferred scheme, the support member is the steel disc being fixed on by conducting resinl on the installation portion, described
Electromagnetic component is fixedly installed on steel disc.
As a kind of preferred scheme, the positioning side for setting the guiding EMI screened films to install on the extension is described
EMI screened films keep the clearance distance by the way that the positioning side is corresponding with the steel disc.
As a kind of preferred scheme, it is provided with the extension on connection end, the connection end and is provided with uniform arrangement
Some golden fingers.
As a kind of preferred scheme, the EMI screened films include insulating barrier and conductive layer, and the insulating barrier is located at described lead
Above electric layer, the conductive layer is contacted with cover layer laminating.
As a kind of preferred scheme, the thickness of the conductive layer is more than the thickness of insulating layer, and the conductive layer thickness is
15μm-30μm。
As a kind of preferred scheme, the EMI screened films are layed on the cover layer of the extension, and with the connection
Hold the adjacent connection in side.
Above-mentioned technical proposal of the present utility model has advantages below compared with prior art:
(1), in a kind of FPC components that the utility model is provided, the FPC bodies include installation portion and by the installation portion
At least one extension stretched out, by the installation portion and at least one extension on set respectively support member and
EMI screened films, support member can strengthen FPC intensity, all kinds of electromagnetic components be installed for extending, to strengthen FPC electronic devices
Performance and design requirement, wherein EMI screened films to FPC have shielding mitigate electromagnetic interference effect, while in the EMI
Gap with 0.5 ㎜ -1 ㎜ is set between screened film and the support member;So that the EMI screened films and the support member
Keep spacing and non-intersect, and do not influence the supporting role of support member and the shield effectiveness of EMI screened films, therefore, normally make
In, no matter how user bends FPC and do not affect the intermembranous relation of EMI shieldings on support member and FPC extensions, also ensure
Therefore support will not tilt.Compared with prior art, when solving FPC bendings steel disc can be made to be layered and lead with EMI screened films
Steel disc is caused to tilt or peel off FPC bodies, and then the problem of influence actual assembled.Therefore, the utility model is in EMI screened films and institute
State the gap that certain distance is set between support member, it is ensured that support member will not also prevent FPC bodies because FPC is bent and tilt
On screened film top layer started or occurred the problem of braking effect shield effectiveness, this structure setting makes to match somebody with somebody between FPC components
Close easy for installation, Stability Analysis of Structures, it is ensured that assembling product uses unaffected.
(2) the guiding EMI screened films peace is set, in a kind of FPC components that the utility model is provided, on the extension
The positioning side of dress, the EMI screened films keep the clearance distance by the way that the positioning side is corresponding with the steel disc.Therefore, originally
The FPC of utility model EMI screened films are installed need to only be installed by the identification to the positioning, and positioning side is to EMI
Screened film plays a guiding function close to an end position of steel disc, and then makes EMI screened films corresponding with steel disc holding
Clearance distance, it is to avoid intersecting situation occur and occur, it is ensured that the Stability and veracity of respective installation site, its is simple in construction,
It is easy for installation, and connection is reliable, applicability is very strong.
(3), in a kind of FPC components that the utility model is provided, connection end, the connection end are provided with the extension
On be provided with some golden fingers uniformly arranged, with extremely strong inoxidizability, strong applicability, and with fine conductibility can
Ensure FPC transmission performance stability.
(4), in a kind of FPC components that the utility model is provided, the EMI screened films include insulating barrier and conductive layer, institute
Insulating barrier is stated above the conductive layer, the conductive layer is fitted with the cover layer and contacted, and the conductive layer thickness
Degree is more than the thickness of insulating layer.This structure setting is realized by EMI screened films shields to the electromagnetic interference produced on FPC
Cover, it is ensured that contact of the EMI screened films with FPC is more abundant, and be difficult to make it wear and tear and roll over bad, lift the shielding to electromagnetic interference and imitate
Really.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that, describe below
In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of cross-sectional view of FPC circuit boards of prior art;
A kind of structural representation for FPC components that Fig. 2 provides for the utility model;
Fig. 3 is the structural representation of the FPC bodies shown in Fig. 2;
Fig. 4 be the utility model in support member and EMI screen layers between gap cross-sectional view;
Description of reference numerals:
1-FPC bodies, 11- installation portions, 12- extensions, 13- gaps, 14- connection ends, 15- positioning side, 2-EMI shieldings
Film, 21- insulating barriers, 22- conductive layers, 3- support members.
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is a part of embodiment of the utility model, rather than whole embodiments.Based on the embodiment in the utility model, sheet
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation or position relationship of the instruction such as " level ", " interior ", " outer " are, based on orientation shown in the drawings or position relationship, to be only
Described for the ease of description the utility model and simplifying, rather than to indicate or imply that signified device or element must have specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that indicating or implying relative importance.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection;Can be mechanical connection or electrical connection;Can be joined directly together, can also be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
As long as in addition, technical characteristic involved in the utility model different embodiments disclosed below is each other
Not constituting conflict can just be combined with each other.
Embodiment 1
The present embodiment provides a kind of FPC components as in Figure 2-4, including the He of FPC bodies 1 being made up of substrate and copper foil
Cover layer on the FPC bodies 1 is set, and the FPC bodies 1 include installation portion 11, and from the installation portion 11 to extension
At least one extension 12 stretched, in addition to the support member 3 being arranged on the installation portion 11 and be arranged on it is described at least one
EMI screened films 2 on extension 12, wherein support member can strengthen FPC intensity, and all kinds of electromagnetic components are installed for extending,
To strengthen the performance and design requirement of FPC electronic components, and there is EMI screened films shielding to mitigate electromagnetic interference work to FPC
With, and the gap 13 with 0.5 ㎜ -1 ㎜ is set between the EMI screened films 2 and the support member 3.
Above-mentioned embodiment is the core technology scheme of the present embodiment, by the EMI screened films 2 and the support member
Gap with 0.5 ㎜ -1 ㎜ is set between 3;So that the EMI screened films 2 keep spacing and non-phase with the support member 3
Hand over, and do not influence the supporting role of support member 3 and the shield effectiveness of EMI screened films, therefore, during normal use, no matter using
How person bends FPC and does not affect relation on support member and FPC extensions 12 between EMI screened films 2, also ensure that support member
Therefore 3 will not tilt.Compared with prior art, when solving FPC bendings steel disc can be made to be layered with EMI screened films and cause steel disc
FPC bodies 1 are tilted or peel off, and then the problem of influence actual assembled.Therefore, the utility model is in EMI screened films and the branch
The gap of certain distance is set between support member, it is ensured that support member 3 will not also prevent on FPC bodies 1 because FPC is bent and tilts
Screened film top layer started or occurred the problem of braking effect shield effectiveness, this structure setting, make cooperation between FPC components
It is easy for installation, Stability Analysis of Structures, it is ensured that assembling product uses unaffected.
As a preferred embodiment, as shown in Figures 2 and 3, the EMI screened films 2 are close to the support member 3
The clearance distance between one end and the support member 3 is 0.5 ㎜, and this reaches holding best results apart from small.Enter
The one step preferably support member 3 is to be fixedly installed on the steel disc being fixed on by conducting resinl on the installation portion 11, the steel disc
There is electromagnetic component.The support member is preferably the support strength that on the one hand steel disc can strengthen the FPC bodies 1 of softness, is unlikely to
Deform easily, keep integrally-built stability, on the other hand by being arranged on the electromagnetic component of steel disc, lifting FPC products
Superior function, to reach various design requirements and customer demand.
Further, the present embodiment is provided with the guiding EMI screens on the basis of above-described embodiment on the extension 12
The positioning side 15 of the installation of film 2 is covered, the EMI screened films 2 keep the gap by the way that the positioning side 15 is corresponding with the steel disc
Distance, the positioning side is preferably trickle to be raised in a position line on FPC bodies.A kind of specific embodiment, it is described to prolong
It is provided with extending portion 12 on connection end 14, the connection end 14 and some golden fingers uniformly arranged is set, with extremely strong anti-oxidant
Property, strong applicability, and with fine conductibility, it is ensured that the stabilization of the transmission performance of FPC products.Therefore, the utility model
FPC EMI screened films install can by it is described positioning 15 identification effectively be installed, position side EMI screened films 2 are leaned on
One end position of nearly steel disc plays a guiding function, and then makes EMI screened films 2 and the corresponding clearance gap of steel disc holding
From, it is to avoid there is intersecting situation and occur, it is ensured that the Stability and veracity of respective installation site, its is simple in construction, installation side
Just, and connection is reliable, applicability is very strong.
As a preferred embodiment, as shown in figure 4, the EMI screened films 2 include insulating barrier 21 and conductive layer
22, the insulating barrier 21 is located at the top of conductive layer 22, and the conductive layer 22 is contacted with cover layer laminating;Further
, the thickness of the conductive layer 22 is more than the thickness of insulating barrier 21, and the thickness of conductive layer 22 is 15 μm -30 μm, with reference to screen
Structure, material property, thickness of film etc. are covered, EMI screened films 2 is reached optimal magnetic field or electric field shielding effect.At this
In embodiment, in order to ensure that circuit carries out ground connection and the shielding of electromagnetic interference on FPC, and institute is layed in by the EMI screened films 2
On the cover layer for stating extension 12, and connection adjacent with the side of connection end 14, so that the gold on connection end will not be covered in
Finger.The embodiment of above of the present embodiment realizes by EMI screened films 2 and the electromagnetic interference produced on FPC shielded, really
Protect EMI 2 contacts with FPC of screened film more abundant, and be difficult to make it wear and tear and roll over bad, lift the shield effectiveness to electromagnetic interference.
Obviously, above-described embodiment is only intended to clearly illustrate example, and the not restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among the protection domain that variation is created still in the utility model.