CN213213958U - High-precision soft and hard combined circuit board - Google Patents
High-precision soft and hard combined circuit board Download PDFInfo
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- CN213213958U CN213213958U CN202021318691.7U CN202021318691U CN213213958U CN 213213958 U CN213213958 U CN 213213958U CN 202021318691 U CN202021318691 U CN 202021318691U CN 213213958 U CN213213958 U CN 213213958U
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- circuit board
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- hard
- flexible circuit
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Abstract
The utility model discloses a circuit board that high-accuracy soft or hard combines, including first hard circuit board, one side of first hard circuit board is provided with the flexible line way board, and the one end of flexible line way board is provided with the hard circuit board of second, and first hard circuit board and the hard circuit board of second pass through the fix with screw by last slab and hypoplastron and constitute, and the inner groovy has respectively been seted up to one side of the hard circuit board of first hard circuit board and second, and the fixed establishment and the hard circuit board of first hard circuit board and second that the flexible line way board passes through in the inner groovy are connected. The utility model can connect the flexible circuit board with the first rigid circuit board and the second rigid circuit board by arranging the inner groove, so that the flexible circuit board can be freely bent and folded according to the working environment, and the whole circuit board has more flexibility; the flexible circuit board can be fixed in the inner groove by arranging the rigid copper covering sheet and the welding sheet, so that the rigid circuit board and the flexible circuit board can realize information transmission.
Description
Technical Field
The utility model relates to a circuit board technical field especially relates to a circuit board that high accuracy soft or hard combines.
Background
The rigid-flexible circuit board has the advantages of thin thickness, light weight, small volume, free bending, stretching, folding and the like in three-dimensional space, and the miniaturization, light weight, thinning and dynamic development of electronic products can be further promoted due to the excellent performance; the soft and hard combined circuit board is mainly applied to the fields of various electronic devices such as mobile phones, mobile phone batteries, notebook computers, computer peripheries, copying machines, cameras and the like, and along with the trend of portable and ultrathin development of electronic products, the requirement on wiring of the circuit board per unit area is higher and higher, and particularly the soft and hard combined circuit board is aimed at.
Through retrieval, chinese patent application No. 201720686278.8 discloses a soft or hard combination circuit board, including base plate, flexible line way board and rigid line way board locate the base plate surface, base plate and rigid line way board be an integral structure, the flexible line way board pass through epoxy glue pressfitting on rigid line way board, flexible line way board and rigid line way board between be equipped with the copper foil layer. The flexible circuit board in the above patent has the following disadvantages: when the flexible circuit board works, current passes through the flexible circuit board, and due to the fact that the adjacent circuit boards are too close to each other, micro-waves or micro-magnetic fields are easily generated mutually, and further the work of the flexible circuit board is affected.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a high-precision rigid-flexible circuit board.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a circuit board that high-accuracy soft or hard combines, including first rigid line way board, one side of first rigid line way board is provided with the flexible line way board, the one end of flexible line way board is provided with the rigid line way board of second, first rigid line way board and the rigid line way board of second pass through the fix with screw by last slab and lower slab and constitute, the inner groovy has respectively been seted up to one side of first rigid line way board and the rigid line way board of second, the flexible line way board passes through the fixed establishment in the inner groovy and is provided with the flexible line layer with the bottom that first rigid line way board and the rigid line way board of second are connected the flexible line way board, the inside on flexible line layer is provided.
In order to fix the flexible circuit board in the inner groove, the fixing mechanism comprises a rigid copper-clad plate and a welding sheet, the rigid copper-clad plate is arranged at the bottom of the inner groove, the welding sheet is welded at the top edge of the rigid copper-clad plate, and two edges of the welding sheet are welded at the bottom of the inner groove.
In order to lead out the heat generated by the circuit quickly, the inner part of the upper plate sheet consists of an ink film, a hard circuit layer, a hard insulating layer and a graphite heat conducting layer, the ink film is attached to the top of the hard circuit layer, the hard insulating layer is arranged at the bottom of the hard circuit layer, and the graphite heat conducting layer is welded at the bottom of the hard insulating layer.
In order to avoid the damage of static electricity to the circuit board, one side of the first rigid circuit board and one side of the second rigid circuit board are provided with conductive pins.
In order to prevent the contact part from being directly exposed in the air, the surfaces of the hard copper-clad plate and the welding sheet are coated with resin glue.
In order to protect the flexible insulating layer and the wire column, a first protective adhesive layer is arranged at the top of the flexible insulating layer, and a second protective adhesive layer is arranged at the bottom of the flexible insulating layer.
In order to prevent the flexible circuit board and the hard copper-clad sheet from being separated, a fixing block is arranged at the top of the inner groove.
The utility model has the advantages that:
1. the flexible circuit board can be connected with the first rigid circuit board and the second rigid circuit board by arranging the inner grooves, so that the flexible circuit board can be freely bent and folded according to the working environment, and the whole circuit board has more flexibility; the flexible circuit board can be fixed in the inner groove by arranging the rigid copper covering sheet and the welding sheet, so that the rigid circuit board and the flexible circuit board can realize information transmission.
2. The graphite heat conduction layer can quickly guide heat generated by the circuit, damage caused by overheating of the circuit board is avoided, and the rigid insulation layer can block external electromagnetic interference and micro-waves among the circuits, so that the rigid circuit board is more stable in operation; the flexible circuit board has the advantages that the flexible insulating layer is arranged to protect the conduction of the wire columns, so that each wire column cannot generate micro waves or a micro magnetic field, mutual interference of the wire columns is avoided, and use safety of the flexible circuit board is improved.
3. The first protective adhesive layer and the second protective adhesive layer can protect the flexible insulating layer and the lead column, and the lead column is fixed on the flexible circuit board; the fixing block is arranged, so that the flexible circuit board and the inner groove can be connected more stably, and the flexible circuit board and the rigid copper-clad sheet are prevented from being separated due to the fact that the bending angle of the flexible circuit board is too large.
Drawings
Fig. 1 is a schematic structural diagram of a high-precision rigid-flex circuit board provided by the present invention;
fig. 2 is a schematic diagram of a hard circuit board structure of a high-precision soft and hard combined circuit board provided by the present invention;
fig. 3 is a schematic diagram of a sheet cross-sectional structure of a high-precision rigid-flex circuit board according to the present invention;
fig. 4 is a schematic diagram of a cross-sectional structure of a flexible printed circuit board of a high-precision rigid-flex circuit board according to the present invention;
fig. 5 is a schematic structural view of a fixing mechanism of a high-precision soft and hard combined circuit board according to the present invention.
In the figure: the flexible printed circuit board comprises a first rigid circuit board 1, a second rigid circuit board 2, a flexible circuit board 3, a flexible circuit layer 4, an upper plate 5, a lower plate 6, an inner groove 7, a fixing block 8, a rigid copper-clad plate 9, a welding plate 10, an ink film 11, a rigid circuit layer 12, a rigid insulating layer 13, a graphite heat-conducting layer 14, a first protective adhesive layer 15, a flexible insulating layer 16, a conductor column 17 and a second protective adhesive layer 18.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
A high-precision soft and hard combined circuit board is shown in figures 1-5 and comprises a first hard circuit board 1, a flexible circuit board 3 is arranged on one side of the first hard circuit board 1, a second hard circuit board 2 is arranged at one end of the flexible circuit board 3, the first hard circuit board 1 and the second hard circuit board 2 are formed by fixing an upper plate piece 5 and a lower plate piece 6 through screws, inner grooves 7 are respectively formed in one sides of the first hard circuit board 1 and the second hard circuit board 2, the flexible circuit board 3 is connected with the first hard circuit board 1 and the second hard circuit board 2 through fixing mechanisms in the inner grooves 7, a flexible circuit layer 4 is arranged at the bottom of the flexible circuit board 3, a conductor column 17 is arranged inside the flexible circuit layer 4, and a flexible insulating layer 16 is arranged on the outer wall of the conductor column 17.
In the embodiment of the present invention: can be connected flexible line way board 3 with first rigid line way board 1 and second rigid line way board 2 through setting up inner grove 7, make flexible line way board 3 can carry out free bending, folding according to operational environment, make whole circuit board have the flexibility more, can protect the circular telegram of wire post 17 through setting up flexible insulation layer 16, make each wire post 17 can not produce little ripples or miniature magnetic field, and then avoided wire post 17's mutual interference, the security that flexible line way board 3 used has been improved.
Specifically, fixed establishment includes rigid copper-clad plate 9 and welding piece 10, and rigid copper-clad plate 9 sets up in the bottom of inner groovy 7, and welding piece 10 welds in rigid copper-clad plate 9's top edge, and the both sides of welding piece 10 weld in the bottom of inner groovy 7.
In the embodiment of the present invention: the flexible circuit board 3 can be fixed in the inner groove 7 by arranging the rigid copper-coated sheet 9 and the welding sheet 10, so that the information transmission between the rigid circuit board and the flexible circuit board 3 can be realized.
Specifically, the interior of the upper plate 5 is composed of an ink film 11, a hard circuit layer 12, a hard insulating layer 13 and a graphite heat conducting layer 14, the ink film 11 is attached to the top of the hard circuit layer 12, the hard insulating layer 13 is arranged at the bottom of the hard circuit layer 12, and the graphite heat conducting layer 14 is welded at the bottom of the hard insulating layer 13.
In the embodiment of the present invention: through setting up graphite heat-conducting layer 14 can derive the heat that the circuit produced fast, avoid the circuit board temperature overheated and lead to damaging, rigid insulation layer 13 can the little wave of external electromagnetic interference and circuit between the separation, makes rigid circuit board operation more stable.
Specifically, one side of the first rigid circuit board 1 and one side of the second rigid circuit board 2 are provided with conductive pins.
In the embodiment of the present invention: static in the circuit board can be removed by arranging the conductive pins, and the circuit board is prevented from being damaged by overlarge static.
Specifically, the surfaces of the hard copper clad laminate 9 and the welding sheet 10 are coated with resin glue.
In the embodiment of the present invention: because the part that hard copper sheet 9 and flexible line way board 3 contacted carries out signal of telecommunication transmission, can play the guard action through scribbling the resin glue, avoided the contact part directly to expose in the air.
Specifically, a first protective adhesive layer 15 is arranged on the top of the flexible insulating layer 16, and a second protective adhesive layer 18 is arranged on the bottom of the flexible insulating layer 16.
In the embodiment of the present invention: the first protective adhesive layer 15 and the second protective adhesive layer 18 can protect the flexible insulating layer 16 and the wire posts 17, and fix the wire posts 17 on the flexible circuit board 3.
Specifically, a fixing block 8 is arranged at the top of the inner groove 7.
In the embodiment of the present invention: can make flexible line way board 3 be connected more stably with inner groovy 7 through setting up fixed block 8, prevent that the too big flexible line way board 3 and the hard copper sheet 9 that covers of flexible line way board 3 bend angle from taking place to separate.
The utility model discloses a theory of operation and use flow: the first hard circuit board 1 and the second hard circuit board 2 are connected with the equipment respectively, the first hard circuit board 1 transmits the electric signal to the flexible circuit board 3 through the hard copper-clad plate 9, the conductor column 17 is arranged in the flexible circuit board 3, and the electric signal is transmitted to the second hard circuit board 2 through the conductor column 17.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. A high-precision rigid-flexible circuit board comprises a first rigid circuit board (1) and is characterized in that a flexible circuit board (3) is arranged on one side of the first rigid circuit board (1), a second rigid circuit board (2) is arranged at one end of the flexible circuit board (3), the first rigid circuit board (1) and the second rigid circuit board (2) are formed by fixing an upper plate piece (5) and a lower plate piece (6) through screws, inner grooves (7) are respectively formed in one sides of the first rigid circuit board (1) and the second rigid circuit board (2), the flexible circuit board (3) is connected with the first rigid circuit board (1) and the second rigid circuit board (2) through fixing mechanisms in the inner grooves (7), a flexible circuit layer (4) is arranged at the bottom of the flexible circuit board (3), and conductor posts (17) are arranged inside the flexible circuit layer (4), the outer wall of the lead post (17) is provided with a flexible insulating layer (16).
2. The circuit board that combines of high accuracy soft or hard according to claim 1, characterized in that, fixed establishment includes rigid copper-clad plate (9) and welding piece (10), and rigid copper-clad plate (9) sets up in the bottom of inner grove (7), and welding piece (10) welds in the top edge of rigid copper-clad plate (9), and the both sides of welding piece (10) weld in the bottom of inner grove (7).
3. A high-precision rigid-flexible printed circuit board according to claim 2, wherein one side of the first rigid printed circuit board (1) and one side of the second rigid printed circuit board (2) are provided with conductive pins.
4. A high-precision rigid-flexible circuit board according to claim 2, characterized in that the surfaces of the rigid copper clad laminate (9) and the soldering tab (10) are coated with resin glue.
5. A high-precision rigid-flex circuit board according to claim 1, characterized in that the top of the flexible insulating layer (16) is provided with a first protective adhesive layer (15), and the bottom of the flexible insulating layer (16) is provided with a second protective adhesive layer (18).
6. A high-precision rigid-flexible circuit board according to claim 2, characterized in that the top of the inner groove (7) is provided with a fixing block (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021318691.7U CN213213958U (en) | 2020-07-08 | 2020-07-08 | High-precision soft and hard combined circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021318691.7U CN213213958U (en) | 2020-07-08 | 2020-07-08 | High-precision soft and hard combined circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213213958U true CN213213958U (en) | 2021-05-14 |
Family
ID=75832546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021318691.7U Active CN213213958U (en) | 2020-07-08 | 2020-07-08 | High-precision soft and hard combined circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213213958U (en) |
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2020
- 2020-07-08 CN CN202021318691.7U patent/CN213213958U/en active Active
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