CN207835903U - High efficiency and heat radiation flexible PCB resistant to bending - Google Patents
High efficiency and heat radiation flexible PCB resistant to bending Download PDFInfo
- Publication number
- CN207835903U CN207835903U CN201820013158.6U CN201820013158U CN207835903U CN 207835903 U CN207835903 U CN 207835903U CN 201820013158 U CN201820013158 U CN 201820013158U CN 207835903 U CN207835903 U CN 207835903U
- Authority
- CN
- China
- Prior art keywords
- layer
- connecting portion
- heat
- surface layer
- protective
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Structure Of Printed Boards (AREA)
Abstract
The utility model is related to field of circuit boards, more particularly to a kind of high efficiency and heat radiation flexible PCB resistant to bending, including main body and the first connecting portion and second connecting portion that are connected to main body both ends and are connected respectively with extraneous electronic component, the first connecting portion and second connecting portion are equipped with arc-shaped transition section with main body junction, and the copper sheet for tear-proof is equipped at arc-shaped transition section；The both sides of the first connecting portion and main body junction have been respectively provided with the protrusion of position-limiting action；The high efficiency and heat radiation flexible PCB resistant to bending includes surface layer protective layer, surface layer heat-conducting layer, surface layer substrate layer, at least one layer of line layer, bottom substrate layer, bottom heat-conducting layer and protective underlayer layer successively from top to bottom, further includes the bottom heat conversion layer for being set to protective underlayer layer outer surface and the surface layer heat conversion layer for being set to surface layer protective layer outer surface.The utility model good heat dissipation effect, bending resistance are good, can effectively prevent fracture, service life is long.
Description
Technical field
The utility model is related to field of circuit boards, more particularly to high efficiency and heat radiation flexible PCB resistant to bending.
Background technology
Flexible PCB (Flexible Printed Circuit Board, FPC) is also known as " soft board ", is with flexible exhausted
Printed circuit made of edge base material.Flexible circuit provides excellent electrical property, can meet smaller and more high-density installation set
Meter needs, it helps reduces assembling procedure and enhancing reliability.Flexible PCB is to meet miniaturization of electronic products and movement
It is required that unique solution.With free bend, winding, folding, millions of dynamic bending can be born without damaging
Conducting wire, can require arbitrary arrangement according to space layout, and arbitrarily be moved and flexible in three dimensions, to reach components and parts assembling
The integration connected with conducting wire；Flexible PCB can be substantially reduced the volume and weight of electronic product, be applicable in electronic product to height
The needs that density, miniaturization, highly reliable direction are developed.
With the rapid development of electronic product industry, flexible circuit board (FPC) has been widely used in each in IT industries
Big field, and have become component part indispensable inside electronic product, such as touch screen field.
On the one hand, flexible circuit board its connector by crimp or grafting in a manner of connect different elements or function module
To realize the purpose of transmission electric signal.It refers to that splicing fingers on connector by flexible circuit board are inserted into and connect that the mode of grafting, which connects,
Device is connect, flexible circuit board is made to be electrically connected with connector, this connection type is inserted into splicing fingers the strength and depth of connector
Have a strict requirements, when insertion overexertion splicing fingers bend fracture or insertion depth can be caused insufficient and product is made to contact position
Setting inaccuracy leads to poor contact, seriously affects its service life.On the other hand, although flexible PCB has centainly flexible
Property, but frequently there are still risk of breakage, service life is short for bending.The third aspect, the heat that line layer work generates, is gathered in electricity
Can exhale in the plate of road and, cause line layer due to temperature is excessively high and aging, further result in flexible PCB and use the longevity
It orders short.
Utility model content
To solve the above problems, a kind of good heat dissipation effect of the utility model offer, bending resistance are good, with long service life resistance to
Bend high efficiency and heat radiation flexible PCB.
Technical solution used by the utility model is：High efficiency and heat radiation flexible PCB resistant to bending, including main body and connection
The first connecting portion and second connecting portion being connected in main body both ends and respectively with extraneous electronic component, the first connecting portion and
Second connecting portion is equipped with arc-shaped transition section with main body junction, and the copper sheet for tear-proof is equipped at arc-shaped transition section；Institute
The both sides for stating first connecting portion and main body junction have been respectively provided with the protrusion of position-limiting action；The high efficiency and heat radiation resistant to bending
Flexible PCB includes surface layer protective layer, surface layer heat-conducting layer, surface layer substrate layer, at least one layer of line layer, bottom successively from top to bottom
Layer substrate layer, bottom heat-conducting layer and protective underlayer layer, further include the bottom heat conversion layer for being set to protective underlayer layer outer surface
With the surface layer heat conversion layer for being set to surface layer protective layer outer surface, if the bottom substrate layer and surface layer substrate layer offer
The radiating groove of dry communication line layer, the radiating groove of bottom substrate layer and the radiating groove of surface layer substrate layer, which interlock, intermittently to be arranged.
To being further improved to offer one on the surface layer protective layer of the second connecting portion and open for above-mentioned technical proposal
Window, the surface area of windowing are less than the surface area of second connecting portion.
To being further improved as the surface layer protective layer offers on one side close to surface layer heat-conducting layer for above-mentioned technical proposal
Several surface layer grooves, the protective underlayer layer offer several bottom grooves on one side by near-bottom heat-conducting layer, and surface layer is recessed
Conductive particle is filled in slot and bottom groove, the surface layer protective layer and protective underlayer layer are doped with insulating particle.
To being further improved as the appearance of the surface layer heat conversion layer and bottom heat conversion layer for above-mentioned technical proposal
Face offers several surface layer semicircle radiating grooves and bottom semicircle radiating groove respectively.
The beneficial effects of the utility model are：
1, on the one hand, it is connected respectively with extraneous electronic component by first connecting portion and second connecting portion, it is easy to use.
Second aspect, first connecting portion and second connecting portion are equipped with arc-shaped transition section with main body junction, utilize the arc-shaped transition
Portion is avoided that first connecting portion and second connecting portion losing in flexible PCB plug or binding procedure even tear, and
So that stress is not concentrated in certain point and adds to strengthen the intensity of first connecting portion and second connecting portion when circuit board is overturn
Consolidate the mechanical performance of flexible PCB, is conducive to extend the service life of flexible PCB.The third aspect, at arc-shaped transition section
Equipped with the copper sheet for tear-proof, the setting of copper sheet increases the mechanical strength and spreading resistance of junction, prevent circuit board by
It in overturning or bending or intercuts and tears, to strengthen the intensity of first connecting portion and second connecting portion, strengthen flexible electrical
The mechanical performance of road plate, bending resistance is good, is conducive to extend the service life of flexible PCB.Fourth aspect, first connecting portion
It is respectively provided with the protrusion of its position-limiting action with the both sides of main body junction, extraneous electronics is inserted into for limiting first connecting portion
The depth of component, prevent insertion it is firmly excessive and the case where cause first connecting portion bend fracture, anti-fracture effect is good,
It is conducive to extend the service life of flexible PCB.5th aspect, high efficiency and heat radiation flexible PCB resistant to bending is from top to bottom successively
Including surface layer protective layer, surface layer heat-conducting layer, surface layer substrate layer, at least one layer of line layer, bottom substrate layer, bottom heat-conducting layer and bottom
Layer protective layer further includes being set to the bottom heat conversion layer of protective underlayer layer outer surface and being set to surface layer protective layer outer surface
Surface layer heat conversion layer, bottom heat-conducting layer and surface layer heat-conducting layer, which quickly conduct the heat that line layer work generates to bottom, to be protected
Sheath and surface layer protective layer, then be transferred to bottom heat conversion layer and surface layer heat conversion layer, by bottom heat conversion layer and
Surface layer heat conversion layer converts heat to infrared ray and is radiated the external world, to avoid circuit board internal temperature rise high, in reduction
The temperature of portion's line layer, prevent circuit board due to temperature increase and aging, good heat dissipation effect, be conducive to extend making for flexible PCB
Use the service life.6th aspect, bottom substrate layer and surface layer substrate layer offer the radiating groove of several communication line layers, bottom base
The radiating groove of material layer and the radiating groove of surface layer substrate layer interval of interlocking arrange, the setting of radiating groove, and one increases bottom substrate
The deformation space of layer and surface layer substrate layer improves its flexibility, further increases its bending resistance, and play ventilated work(
It can so that the heat of line layer is quickly transferred to surface layer thermal trough and bottom thermal trough by radiating groove, further improves this
The heat dissipation effect of utility model prevents circuit board aging due to temperature raising, is conducive to extend the service life of flexible PCB.
2, a windowing is offered on the protective layer of second connecting portion, the surface area of windowing is less than the surface of second connecting portion
Product, the setting of windowing increase the deformation space of second connecting portion, improve the flexibility and bending resistance of circuit board, prevent from bending
Or be broken caused by when being inserted into, simultaneously as windowing is only opened in surface layer protective layer, the i.e. surface of second connecting portion, do not influence
The electric current of line layer conducts, and therefore, while ensureing circuit board normal work, further improves the anti-breaking fragility of circuit board
Can, it is conducive to extend the service life of circuit board.
3, surface layer protective layer offers several surface layer grooves on one side close to surface layer heat-conducting layer, and the protective underlayer layer leans on
Near-bottom heat-conducting layer offers several bottom grooves on one side, and conductive particle is filled in surface layer groove and bottom groove,
The surface layer protective layer and protective underlayer layer are doped with insulating particle.The setting of surface layer groove and bottom groove, increases table
The deformation space of layer protective layer and protective underlayer layer improves its ability for resisting stress, improves its buckle resistance, increase surface layer
The flexibility of protective layer and protective underlayer layer is broken to prevent its stress, meanwhile, insulating particle plays the work(of buffering and insulation
Can, ensure the stable operation of flexible PCB, service life is long, and conductive particle quickly conducts the heat in protective layer to heat
Conversion layer prevents circuit board internal temperature excessively high, is conducive to extend the service life of flexible PCB.
4, the outer surface of surface layer heat conversion layer and bottom heat conversion layer offers several surface layer semicircles and dissipates respectively
Heat channel and bottom semicircle radiating groove, surface layer semicircle radiating groove and bottom semicircle radiating groove increase heat dissipation area so that
Heat conversion layer can quickly go out converting heat for infrared radiation, further improve the heat dissipation performance of flexible PCB,
It prevents circuit board internal temperature excessively high, is conducive to extend the service life of flexible PCB.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the cross-sectional view of the utility model.
Specific implementation mode
The utility model is further described below in conjunction with embodiment.
As Figure 1-Figure 2, the respectively structural schematic diagram and cross-sectional view of the utility model.
High efficiency and heat radiation flexible PCB 100 resistant to bending, including main body 110 and be connected to 110 both ends of main body and respectively with outside
The connected first connecting portion 120 of boundary's electronic component and second connecting portion 130, the first connecting portion 120 and second connecting portion
130 are equipped with arc-shaped transition section 140 with 110 junction of main body, and the copper sheet for tear-proof is equipped at arc-shaped transition section 140
150；The both sides of the first connecting portion 120 and 110 junction of main body have been respectively provided with the protrusion 160 of position-limiting action.
The high efficiency and heat radiation flexible PCB 100 resistant to bending includes surface layer protective layer 101, surface layer heat conduction successively from top to bottom
Layer 102, surface layer substrate layer 103, at least one layer of line layer 104, bottom substrate layer 105, bottom heat-conducting layer 106 and protective underlayer layer
107, further include being set to the bottom heat conversion layer 108 of 107 outer surface of protective underlayer layer and being set to outside surface layer protective layer 101
The surface layer heat conversion layer 109 on surface, the bottom substrate layer 105 and surface layer substrate layer 103 offer several communication lines
The radiating groove 103a of road floor 104, the radiating groove 103a of bottom substrate layer 105 and the radiating groove 103a of surface layer substrate layer 103 interlock
Interval arranges.
A windowing 170 is offered on the protective layer of second connecting portion 130, open a window 170 surface area be less than second connecting portion
130 surface area, open a window 170 setting, increase the deformation space of second connecting portion 130, improve circuit board 100 flexibility and
Bending resistance is broken caused by when preventing from bending or being inserted into, simultaneously as windowing 170 is opened in surface layer protective layer 101, i.e.,
The surface of second connecting portion 130 does not influence the electric current conduction of line layer 104, therefore, is ensureing what circuit board 100 worked normally
Meanwhile the anti-fracture performance of circuit board 100 is further improved, it is conducive to extend the service life of circuit board 100.
Surface layer protective layer 101 offers several surface layers groove 101a, the bottom on one side close to surface layer heat-conducting layer 102
Protective layer 107 offers several bottoms groove 107a on one side by near-bottom heat-conducting layer 106, and surface layer groove 101a and bottom are recessed
Conductive particle is filled in slot 107a, the surface layer protective layer 101 and protective underlayer layer 107 are doped with insulating particle.Table
The setting of layer groove 101a and bottom groove 107a, increase the deformation space of surface layer protective layer 101 and protective underlayer layer 107,
Its ability for resisting stress is improved, improves its buckle resistance, increases the flexibility of surface layer protective layer 101 and protective underlayer layer 107,
It is broken to prevent its stress, meanwhile, insulating particle plays buffering and the function of insulation, ensures the steady of flexible PCB 100
Fixed operation, service life is long, and conductive particle quickly conducts the heat in protective layer to heat conversion layer, prevents circuit board 100
Internal temperature is excessively high, is conducive to extend the service life of flexible PCB 100.
The outer surface of surface layer heat conversion layer 109 and bottom heat conversion layer 108 offers several surface layer semicircles respectively
Shape radiating groove 103a109a and bottom semicircle radiating groove 103a108a, surface layer semicircle radiating groove 103a109a and bottom semicircle
Shape radiating groove 103a108a increases heat dissipation area so that heat conversion layer can quickly go out converting heat for infrared radiation
It goes, further improves the heat dissipation performance of flexible PCB 100, prevent 100 internal temperature of circuit board excessively high, be conducive to extend soft
The service life of property circuit board 100.
On the one hand, it is connected respectively with extraneous electronic component by first connecting portion 120 and second connecting portion 130, is used
It is convenient.Second aspect, first connecting portion 120 and second connecting portion 130 are equipped with arc-shaped transition section 140 with 110 junction of main body,
Using the arc-shaped transition part, it is avoided that first connecting portion 120 and second connecting portion 130 are plugged or tied up in flexible PCB 100
Losing during fixed even tears, and so that stress is not concentrated in certain point when the overturning of circuit board 100, to strengthen first
The intensity of interconnecting piece 120 and second connecting portion 130 strengthens the mechanical performance of flexible PCB 100, is conducive to extend flexible electrical
The service life of road plate 100.The third aspect, the copper sheet 150 for tear-proof is equipped at arc-shaped transition section 140, and copper sheet 150 is set
It sets, increases the mechanical strength and spreading resistance of junction, prevent circuit board 100 from being torn due to overturning or bending or intercutting,
To strengthen the intensity of first connecting portion 120 and second connecting portion 130, the mechanical performance of flexible PCB 100 is strengthened, it is resistance to
Bending is good, is conducive to extend the service life of flexible PCB 100.Fourth aspect, first connecting portion 120 connect with main body 110
The both sides at the place of connecing are respectively provided with the protrusion 160 of its position-limiting action, and extraneous electronics member is inserted into for limiting first connecting portion 120
The depth of device, prevent insertion it is firmly excessive and the case where cause 120 bend fracture of first connecting portion, anti-fracture effect
It is good, it is conducive to extend the service life of flexible PCB 100.5th aspect, high efficiency and heat radiation flexible PCB 100 resistant to bending is from upper
Arrive down includes surface layer protective layer 101, surface layer heat-conducting layer 102, surface layer substrate layer 103, at least one layer of line layer 104, bottom successively
Substrate layer 105, bottom heat-conducting layer 106 and protective underlayer layer 107 further include the bottom for being set to 107 outer surface of protective underlayer layer
Heat conversion layer 108 and the surface layer heat conversion layer 109 for being set to 101 outer surface of surface layer protective layer, bottom heat-conducting layer 106 and table
Layer heat-conducting layer 102 quickly conducts the heat that the work of line layer 104 generates to protective underlayer layer 107 and surface layer protective layer 101, then
It is transferred to bottom heat conversion layer 108 and surface layer heat conversion layer 109, is turned by bottom heat conversion layer 108 and surface layer heat
It changes layer 109 to convert heat to infrared ray and be radiated the external world, to avoid 100 internal temperature rise of circuit board high, reduces inner wire
The temperature of road floor 104, prevents circuit board 100 due to temperature raising and aging, good heat dissipation effect are conducive to extend flexible PCB
100 service life.6th aspect, bottom substrate layer 105 and surface layer substrate layer 103 offer several communication line layers
104 radiating groove 103a, the radiating groove 103a of bottom substrate layer 105 and the radiating groove 103a of surface layer substrate layer 103 interlock intermittently
Arrangement, the setting of radiating groove 103a, one increases the deformation space of bottom substrate layer 105 and surface layer substrate layer 103, improves it
Flexibility further increases its bending resistance, and plays ventilated function so that the heat of line layer 104 passes through radiating groove
103a is quickly transferred to surface layer thermal trough and bottom thermal trough, further improves the heat dissipation effect of the utility model, prevents electricity
The aging due to temperature raising of road plate 100, is conducive to extend the service life of flexible PCB 100.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the common of this field
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (4)
1. high efficiency and heat radiation flexible PCB resistant to bending, it is characterised in that：Including main body and be connected to main body both ends and respectively with outside
Boundary's electronic component connected first connecting portion and second connecting portion, the first connecting portion and second connecting portion are connect with main body
Place is equipped with arc-shaped transition section, and the copper sheet for tear-proof is equipped at arc-shaped transition section；The first connecting portion connects with main body
The both sides at the place of connecing have been respectively provided with the protrusion of position-limiting action；The high efficiency and heat radiation flexible PCB resistant to bending from top to bottom according to
It is secondary include surface layer protective layer, surface layer heat-conducting layer, surface layer substrate layer, at least one layer of line layer, bottom substrate layer, bottom heat-conducting layer and
Protective underlayer layer further includes being set to the bottom heat conversion layer of protective underlayer layer outer surface and being set to surface layer protective layer appearance
The surface layer heat conversion layer in face, the bottom substrate layer and surface layer substrate layer offer the heat dissipation of several communication line layers
Slot, the radiating groove of bottom substrate layer and the radiating groove of surface layer substrate layer, which interlock, intermittently to be arranged.
2. high efficiency and heat radiation flexible PCB resistant to bending according to claim 1, it is characterised in that：The second connecting portion
A windowing is offered on the protective layer of surface layer, the surface area of windowing is less than the surface area of second connecting portion.
3. high efficiency and heat radiation flexible PCB resistant to bending according to claim 2, it is characterised in that：The surface layer protective layer leans on
Nearly surface layer heat-conducting layer offers several surface layer grooves on one side, and the protective underlayer layer opens up on one side by near-bottom heat-conducting layer
There are several bottom grooves, conductive particle is filled in surface layer groove and bottom groove, the surface layer protective layer and bottom are protected
Sheath is doped with insulating particle.
4. high efficiency and heat radiation flexible PCB resistant to bending according to claim 3, it is characterised in that：The surface layer heat conversion
The outer surface of layer and bottom heat conversion layer offers several surface layer semicircle radiating grooves and bottom semicircle radiating groove respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820013158.6U CN207835903U (en) | 2018-01-04 | 2018-01-04 | High efficiency and heat radiation flexible PCB resistant to bending |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820013158.6U CN207835903U (en) | 2018-01-04 | 2018-01-04 | High efficiency and heat radiation flexible PCB resistant to bending |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207835903U true CN207835903U (en) | 2018-09-07 |
Family
ID=63391793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820013158.6U Active CN207835903U (en) | 2018-01-04 | 2018-01-04 | High efficiency and heat radiation flexible PCB resistant to bending |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207835903U (en) |
-
2018
- 2018-01-04 CN CN201820013158.6U patent/CN207835903U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201323341Y (en) | Cable connector component | |
| US20060273817A1 (en) | Wireless transmission device with a built-in antenna and a connector | |
| CN105407636A (en) | Golden finger device for flexible printed circuit board | |
| CN207835906U (en) | high-strength flexible circuit board | |
| CN207835904U (en) | Long-life flexible PCB | |
| CN201234406Y (en) | Flexible printed circuit board | |
| CN207835903U (en) | High efficiency and heat radiation flexible PCB resistant to bending | |
| CN206806540U (en) | A kind of socket connector, board to board connector and electronic equipment | |
| CN219534509U (en) | Flexible chip packaging structure | |
| CN202121857U (en) | Multilayer flexible printed circuit | |
| CN208029177U (en) | A kind of PCB chip fixed structure | |
| CN206212403U (en) | Heat radiating type flexible print circuit board | |
| CN201797087U (en) | Electrical connector | |
| JP4141468B2 (en) | Electrical connector | |
| CN207835902U (en) | Anti-fracture flexible PCB | |
| CN201859994U (en) | Connector | |
| CN209488907U (en) | A kind of bend-resistance flexible circuitry soft board | |
| US20070221402A1 (en) | Soft wire bank joint device | |
| CN201285843Y (en) | Electric connector | |
| CN201075493Y (en) | Electric Connector | |
| CN207765649U (en) | A kind of conducting terminal and electric connector | |
| CN208190992U (en) | A kind of flexible circuit board with high folding resistance | |
| CN202308456U (en) | Electric connector | |
| CN202121861U (en) | Enhanced flexible circuit board | |
| CN208189828U (en) | Flexible circuit board connector and flexible circuit board |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |