CN213602877U - Low-magnetic steel sheet flexible high-density circuit board for intelligent terminal - Google Patents
Low-magnetic steel sheet flexible high-density circuit board for intelligent terminal Download PDFInfo
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- CN213602877U CN213602877U CN202022741350.7U CN202022741350U CN213602877U CN 213602877 U CN213602877 U CN 213602877U CN 202022741350 U CN202022741350 U CN 202022741350U CN 213602877 U CN213602877 U CN 213602877U
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Abstract
The utility model discloses a flexible high density circuit board of low magnetism steel sheet for intelligent terminal, including flexible line way board body and golden finger, the flexible line way board body includes first circuit portion and second circuit portion, first circuit portion is equipped with anti connecting portion of tearing with the junction of second circuit portion, and the golden finger sets up the edge on first circuit portion, be equipped with earphone mounting hole and camera mounting hole in the first circuit portion, the reinforcement district of second circuit portion is equipped with the low magnetism steel sheet. The low-magnetic steel sheet is used for reinforcing the flexible circuit board, the magnetism is small, the interference to the functions of product parts can not be generated when the magnetism is less than 1.0mT., the risk of poor functions of products is reduced, and the product quality is improved.
Description
Technical Field
The utility model relates to a circuit board processing field specifically is a flexible high density circuit board of low magnetism steel sheet for intelligent terminal.
Background
With the continuous development of electronic products in the direction of thinness, smallness and fineness, the application of the flexible circuit board is more and more extensive, the flexible circuit board is also called a flexible board, is a printed circuit made of flexible insulating base materials, can improve excellent electrical property, can meet the design requirements of smaller and higher-density installation, can be freely bent, wound and folded, and can bear millions of dynamic bending without damaging a lead.
In the production process of the flexible circuit board, a reinforcing steel sheet needs to be adhered to fulfill the aim of reinforcing the FPC, and the existing reinforcing steel sheets are high-magnetic steel sheets and have high magnetism, so that the functions of parts are influenced.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: to the problem and not enough of existence among the above-mentioned prior art, the utility model aims at providing a flexible high density circuit board of low magnetism steel sheet for intelligent terminal.
The technical scheme is as follows: in order to achieve the purpose, a flexible high density circuit board of low magnetism steel sheet for intelligent terminal, including flexible line way board body and golden finger, the flexible line way board body includes first circuit portion and second circuit portion, first circuit portion is equipped with anti connecting portion of tearing with the junction of second circuit portion, the golden finger sets up the edge in first circuit portion, be equipped with earphone mounting hole and camera mounting hole in the first circuit portion, the reinforcement district of second circuit portion is equipped with the low magnetism steel sheet.
Furthermore, the low-magnetic steel sheet is arranged in a rectangular shape, and four corners of the low-magnetic steel sheet are arranged to be round chamfers
Furthermore, one side of the low-magnetic steel sheet, which is attached to the second circuit part, is provided with a grid, and the low-magnetic steel sheet is fixedly bonded to the second circuit part through pure glue.
Further, the tear-resistant connecting portion comprises a left connecting portion and a right connecting portion, the left connecting portion is provided with a first groove, a second groove and a first protrusion, and the right connecting portion comprises a third groove, a second protrusion and an arc-shaped connecting section.
Further, the golden finger comprises an A section, a B section and a C section, a U-shaped groove I is arranged between the A section and the first line portion, a U-shaped groove II is arranged between the A section and the B section, a straight line connecting portion is arranged between the B section and the camera mounting hole, and an arc-shaped notch is arranged between the C section and the first line portion.
Furthermore, the flexible circuit board body comprises a first covering film, a first copper foil circuit layer, a PI substrate, a second copper foil circuit layer and a second covering film, wherein the first copper foil circuit layer is arranged on the upper surface of the PI substrate, the second copper foil circuit layer is arranged on the lower surface of the PI substrate, the first covering film is arranged on the upper surface of the first copper foil circuit layer, and the second covering film is arranged on the lower surface of the second copper foil circuit layer.
Further, the first copper foil circuit layer and the second copper foil circuit layer are both any one of a rolled copper foil and an electrolytic copper foil.
Furthermore, the first cover film and the second cover film are formed by laminating the insulating film, the glue film and the PI base material.
Furthermore, the middle position of the low-magnetic steel sheet is provided with a conductive adhesive, and the outer side of the conductive adhesive is provided with a release film.
Above-mentioned technical scheme can see out, the beneficial effects of the utility model are that:
(1) a flexible high density circuit board of low magnetism steel sheet for intelligent terminal adopts the low magnetism steel sheet to carry out the reinforcement to flexible circuit board, and magnetism is little, just can not produce the interference to the function of product part, has reduced the risk of product malfunction, promotes the product quality.
(2) A flexible high density circuit board of low magnetism steel sheet for intelligent terminal, the low magnetism steel sheet adopts latticed design with the laminating portion of second circuit portion, can guarantee that low magnetism steel sheet and second circuit portion adhesive are more firm, are difficult for droing.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the present invention;
fig. 3 is a schematic structural diagram of the flexible printed circuit board of the present invention.
Detailed Description
The invention will be further elucidated with reference to the drawings and the specific embodiments.
The flexible high-density circuit board for the low-magnetic steel sheet of the intelligent terminal comprises a flexible circuit board body 1 and a golden finger 2, wherein the flexible circuit board body 1 comprises a first circuit part 11 and a second circuit part 12, a tear-resistant connecting part 13 is arranged at the connecting part of the first circuit part 11 and the second circuit part 12, the golden finger 2 is arranged at the edge of the first circuit part 11, a receiver mounting hole 111 and a camera mounting hole 112 are formed in the first circuit part 11, and a low-magnetic steel sheet 3 is arranged in a reinforcing area of the second circuit part 12.
In this embodiment, the four corners of the rectangular low-magnetic steel sheet 3 are rounded
In this embodiment, a mesh is arranged on the surface of the low-magnetic steel sheet 3 attached to the second circuit part 2, and the low-magnetic steel sheet 3 is bonded and fixed to the second circuit part 2 through pure glue. The latticed design can ensure that the low-magnetic steel sheet 3 is bonded with the second circuit part 2 more firmly.
In this embodiment, the tear-resistant connecting portion 13 includes a left connecting portion 131 and a right connecting portion 132, the left connecting portion 131 has a first groove 131a, a second groove 131b and a first protrusion 131c, and the right connecting portion 132 includes a third groove 132a, a second protrusion 132b and an arc connecting segment 132 c.
In this embodiment, the golden finger 2 includes a section 21, a section 22 and a section 23, a section 21 and a first circuit portion 11 are provided with a U-shaped groove 24 therebetween, a section 21 and a section 22 are provided with a U-shaped groove 25 therebetween, a section 22 and a camera mounting hole 112 are provided with a straight line connecting portion 26 therebetween, and an arc-shaped notch 27 is provided between the section 23 and the first circuit portion 11.
In this embodiment, the flexible printed circuit board body 1 includes a first cover film 14a, a first copper foil circuit layer 12a, a PI substrate 11a, a second copper foil circuit layer 13a, and a second cover film 15a, where the first copper foil circuit layer 12a is disposed on an upper surface of the PI substrate 11a, the second copper foil circuit layer 13a is disposed on a lower surface of the PI substrate 11a, the first cover film 14a is disposed on an upper surface of the first copper foil circuit layer 12a, and the second cover film 15a is disposed on a lower surface of the second copper foil circuit layer 13 a.
In this embodiment, the first copper foil circuit layer 12a and the second copper foil circuit layer 13a are both one of a rolled copper foil and an electrolytic copper foil.
In this embodiment, the first cover film 14a and the second cover film 15a are laminated on the PI substrate 11a through an insulating film and an adhesive film.
In this embodiment, the middle of the low-magnetic steel sheet 3 is provided with a conductive adhesive, and the outer side of the conductive adhesive is provided with a release film.
The examples are given solely for the purpose of illustration and are not intended to limit the scope of the invention, which is to be determined by those skilled in the art after reading the present disclosure, and all such equivalents are intended to fall within the scope of the invention as defined in the claims appended hereto.
Claims (9)
1. The utility model provides a flexible high density circuit board of low magnetism steel sheet for intelligent terminal, includes flexible line way board body (1) and golden finger (2), its characterized in that: flexible line way board body (1) includes first circuit portion (11) and second circuit portion (12), first circuit portion (11) is equipped with anti tearing connecting portion (13) with the junction of second circuit portion (12), and golden finger (2) set up the edge on first circuit portion (11), be equipped with earphone mounting hole (111) and camera mounting hole (112) on first circuit portion (11), the reinforcement district of second circuit portion (12) is equipped with low magnetism steel sheet (3).
2. The low-magnetic steel sheet flexible high-density circuit board for the intelligent terminal as claimed in claim 1, wherein: the low-magnetic steel sheet (3) is arranged in a rectangular shape, and four corners of the low-magnetic steel sheet are provided with round chamfers.
3. The low-magnetic steel sheet flexible high-density circuit board for the intelligent terminal as claimed in claim 1, wherein: the low-magnetic steel sheet (3) is provided with a grid on one side attached to the second circuit part (12), and the low-magnetic steel sheet (3) is fixedly bonded to the second circuit part (12) through pure glue.
4. The low-magnetic steel sheet flexible high-density circuit board for the intelligent terminal as claimed in claim 1, wherein: tear connecting portion (13) include left side connecting portion (131) and right side connecting portion (132), left side connecting portion (131) are equipped with recess one (131 a), recess two (131 b) and protruding one (131 c), right side connecting portion (132) include recess three (132 a), protruding two (132 b) and arc linkage segment (132 c).
5. The low-magnetic steel sheet flexible high-density circuit board for the intelligent terminal as claimed in claim 1, wherein: golden finger (2) are including A section (21), B section (22) and C section (23), be equipped with between A section (21) and first circuit portion (11) U type groove (24), A section (21) and B section (22) between be equipped with U type groove two (25), be equipped with between B section (22) and camera mounting hole (112) straight line connecting portion (26), be equipped with arc breach (27) between C section (23) and first circuit portion (11).
6. The low-magnetic steel sheet flexible high-density circuit board for the intelligent terminal as claimed in claim 1, wherein: the flexible circuit board body (1) comprises a first covering film (14 a), a first copper foil circuit layer (12 a), a PI base material (11 a), a second copper foil circuit layer (13 a) and a second covering film (15 a), wherein the first copper foil circuit layer (12 a) is arranged on the upper surface of the PI base material (11 a), the second copper foil circuit layer (13 a) is arranged on the lower surface of the PI base material (11 a), the first covering film (14 a) is arranged on the upper surface of the first copper foil circuit layer (12 a), and the second covering film (15 a) is arranged on the lower surface of the second copper foil circuit layer (13 a).
7. The low-magnetic steel sheet flexible high-density circuit board for the intelligent terminal as claimed in claim 6, wherein: the first copper foil circuit layer (12 a) and the second copper foil circuit layer (13 a) are both any one of rolled copper foil and electrolytic copper foil.
8. The low-magnetic steel sheet flexible high-density circuit board for the intelligent terminal as claimed in claim 7, wherein: the first cover film (14 a) and the second cover film (15 a) are formed by laminating an insulating film and an adhesive film with a PI base material (11 a).
9. The low-magnetic steel sheet flexible high-density circuit board for the intelligent terminal as claimed in claim 1, wherein: the middle position of the low-magnetic steel sheet (3) is provided with conductive adhesive, and the outer side of the conductive adhesive is provided with a release film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022741350.7U CN213602877U (en) | 2020-11-24 | 2020-11-24 | Low-magnetic steel sheet flexible high-density circuit board for intelligent terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022741350.7U CN213602877U (en) | 2020-11-24 | 2020-11-24 | Low-magnetic steel sheet flexible high-density circuit board for intelligent terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213602877U true CN213602877U (en) | 2021-07-02 |
Family
ID=76597273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022741350.7U Active CN213602877U (en) | 2020-11-24 | 2020-11-24 | Low-magnetic steel sheet flexible high-density circuit board for intelligent terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213602877U (en) |
-
2020
- 2020-11-24 CN CN202022741350.7U patent/CN213602877U/en active Active
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