CN210432044U - Different annular pad flexible line way board - Google Patents
Different annular pad flexible line way board Download PDFInfo
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- CN210432044U CN210432044U CN201920617664.0U CN201920617664U CN210432044U CN 210432044 U CN210432044 U CN 210432044U CN 201920617664 U CN201920617664 U CN 201920617664U CN 210432044 U CN210432044 U CN 210432044U
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- circuit board
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- flexible circuit
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- board
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Abstract
A flexible circuit board with different annular bonding pads comprises a first flexible circuit board and a second flexible circuit board, wherein at least one bonding pad is manufactured on a bonding area on each circuit channel, the bonding pad is annular, the inner diameter of the bonding pad on the first flexible circuit board is larger than the outer diameter of the bonding pad on the second flexible circuit board, an adhesive is arranged on the bonding area, the bonding pad on the second flexible circuit board penetrates through the adhesive and is inserted into the bonding pad on the first flexible circuit board, so that the bonding pad on the first flexible circuit board and the bonding pad on the second flexible circuit board are concentric rings, and the first flexible circuit board and the second flexible circuit board are connected through a welding furnace; two flexible line way boards are connected and do not need the connector to reduction in production cost, and, the design demand that more small-size and higher density installation can be satisfied to the volume is less, and two flexible line way boards adopt simultaneously to connect with bonding and welded mode, have to connect more stably can not appear contact failure advantage.
Description
Technical Field
The utility model relates to a circuit board, in particular to different annular pad flexible line way boards.
Background
Along with the development of economy and the high-speed development of electronic industry, the use amount of printed circuit boards is continuously rising, meanwhile, the printed circuit boards also enter equipment of various industries, in addition, in order to meet the requirements of small space, high density and bending, the development of flexible circuit boards also enters a rapid development time, and particularly, compared with a hard board, the flexible circuit board is used as a connecting part of an electronic product, such as a mobile phone flat cable, a liquid crystal module and the like, the flexible circuit board has the advantages of smaller volume, lighter weight, bending deflection, three-dimensional assembly and the like.
However, when a plurality of flexible circuit boards need to be connected, the conventional process is to weld connectors at one end of two adjacent flexible circuit boards, and the flexible circuit boards are connected through the connectors; the connecting mode has the advantages that two additional connectors are added, so that the production cost is increased; because the connector is generally large in volume, occupied space is correspondingly increased, and all components of the electronic product are connected compactly, the volume of the electronic product needs to be increased to increase the internal space of the electronic product; in addition, connection is unstable, contact failure, and the like.
Therefore, a need exists in the market for a crimp-bonded flexible circuit board with low cost, small volume and stable connection.
SUMMERY OF THE UTILITY MODEL
For solving the problem that exists among the prior art, the utility model provides a have the cost lower, the volume is less and connect stable different annular pad flexible line way board.
The utility model discloses a reach the technical scheme that above-mentioned purpose adopted and be: a different ring shape pad flexible circuit board comprises a first flexible circuit board and a second flexible circuit board, wherein the first flexible circuit board and the second flexible circuit board are respectively composed of a plurality of circuit channels side by side, the number of the circuit channels on the second flexible circuit board and the number of the circuit channels on the first flexible circuit board are equal and the positions of the circuit channels are corresponding, at least one pad is manufactured on each circuit channel, the pad is ring-shaped, the inner diameter of the pad on the first flexible circuit board is larger than the outer diameter of the pad on the second flexible circuit board, a binder is arranged on the pad, the pad on the second flexible circuit board penetrates through the binder and is inserted into the pad on the first flexible circuit board, so that the pad on the first flexible circuit board and the pad on the second flexible circuit board are concentric rings, printing solder paste in the concentric rings through an SMT steel mesh; and connecting the first flexible circuit board and the second flexible circuit board through a welding furnace.
For the improvement of the present invention, the at least one pad is two or more.
To the utility model discloses an improvement, the pad on two adjacent circuit channels on same circuit board sets up alternately.
To the utility model discloses an improve, still include the protection film, the protection film will first flexible line way board with second flexible line way board parcel.
The utility model has the advantages that: compared with the prior art, the utility model comprises a first flexible circuit board and a second flexible circuit board, the first flexible circuit board and the second flexible circuit board are respectively composed of a plurality of circuit channels side by side, the number of the circuit channels on the second flexible circuit board and the circuit channels on the first flexible circuit board are equal and the positions are corresponding, at least one pad is manufactured on each circuit channel in a welding area, the pad is annular, the inner diameter of the pad on the first flexible circuit board is larger than the outer diameter of the pad on the second flexible circuit board, a binder is arranged on the welding area, the pad on the second flexible circuit board passes through the binder and is inserted into the pad on the first flexible circuit board, so that the pad on the first flexible circuit board and the pad on the second flexible circuit board are concentric rings, printing solder paste in the concentric rings through an SMT steel mesh; and connecting the first flexible circuit board and the second flexible circuit board through a welding furnace. Two flexible line way boards are connected and do not need the connector to reduction in production cost, and, the design demand that more small-size and higher density installation can be satisfied to the volume is less, and two flexible line way boards adopt simultaneously to connect with bonding and welded mode, have to connect more stably can not appear contact failure advantage.
Drawings
Fig. 1 is a schematic structural diagram of the flexible printed circuit board with different annular bonding pads after expansion.
Fig. 2 is the utility model relates to a structural schematic diagram after different annular pad flexible line way boards bond and weld.
Detailed Description
In order to make the above objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.
As shown in fig. 1 and fig. 2, fig. 1 and fig. 2 disclose a different flexible circuit board with annular bonding pads, which includes a first flexible circuit board 1 and a second flexible circuit board 2, where the first flexible circuit board 1 and the second flexible circuit board 2 are respectively composed of a plurality of circuit channels 3 side by side, the number of the circuit channels 3 on the second flexible circuit board 2 is equal to and the positions of the circuit channels 3 on the first flexible circuit board 1 are corresponding, at least one bonding pad 4 is manufactured on a bonding pad 5 on each circuit channel 3, the bonding pad 4 is annular, the inner diameter of the bonding pad 4 on the first flexible circuit board 1 is larger than the outer diameter of the bonding pad 4 on the second flexible circuit board 2, an adhesive 6 is disposed on the bonding pad 5, the bonding pad 4 on the second flexible circuit board 2 passes through the adhesive 6 and is inserted into the bonding pad 4 on the first flexible circuit board 1, making the pads 4 on the first flexible wiring board 1 and the pads 4 on the second flexible wiring board 2 in concentric rings, and printing the solder paste 7 in the concentric rings by an SMT steel net (which is a special SMT mold whose main function is to help the deposition of the solder paste 7 in order to transfer an accurate amount of solder paste 7 to an accurate position on the flexible wiring board); connecting the first flexible circuit board 1 and the second flexible circuit board 2 through a welding furnace; two flexible line way boards are connected and do not need the connector to reduction in production cost, and, the design demand that more small-size and higher density installation can be satisfied to the volume is less, and two flexible line way boards adopt simultaneously to connect with bonding and welded mode, have to connect more stably can not appear contact failure advantage.
Preferably, one to three pads 4 can be formed on each of the circuit channels 3 to prevent one of the pads 4 from failing, and another one to two of the pads are prepared to prevent one circuit channel 3 from failing and affecting the whole flexible circuit board.
Preferably, the pads 4 on two adjacent circuit channels 3 on the same circuit board are arranged at intervals.
Preferably, the flexible printed circuit board further comprises a protective film 8, and the first flexible printed circuit board 1 and the second flexible printed circuit board 2 are wrapped by the protective film 8, so that waterproof, dustproof and anti-creeping effects can be achieved.
The manufacturing process comprises the following steps: providing two flexible circuit boards, manufacturing one to three bonding pads on each circuit channel on each flexible circuit board by using a machining mode at one end adjacent to the two flexible circuit boards, wherein the bonding pads are annular, the inner diameter of the bonding pad on the first flexible circuit board is larger than the outer diameter of the bonding pad on the second flexible circuit board, arranging a bonding agent on the bonding pad, the bonding pad on the second flexible circuit board penetrates through the bonding agent layer and is inserted into the bonding pad on the first flexible circuit board, so that the bonding pad on the first flexible circuit board and the bonding pad on the second flexible circuit board are concentric rings, printing solder paste in the annular bonding pad by using an SMT steel mesh, connecting the first flexible circuit board and the second flexible circuit board through a welding furnace, and realizing circuit conduction of the two flexible circuit boards through the solder paste; the two flexible circuit boards are connected in a bonding and welding mode, so that the advantages of more stable connection and no poor contact are achieved; and finally, a layer of insulating protective film is wrapped on the two flexible circuits which are connected together, so that the purposes of water resistance, dust resistance and electric leakage prevention are achieved.
In addition, the number of the connections of the flexible printed circuit board is not limited to two, and may be two, three, or more.
The above-mentioned embodiments only express two embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (4)
1. The utility model provides a different ring pad flexible line way board, includes first flexible line way board and second flexible line way board, first flexible line way board with the second flexible line way board comprises a plurality of circuit passageways side by side respectively, circuit passageway on the second flexible line way board with the quantity of circuit passageway on the first flexible line way board equals and the position is corresponding, its characterized in that: manufacturing at least one pad on a welding area on each line channel, wherein the pad is annular, the inner diameter of the pad on the first flexible circuit board is larger than the outer diameter of the pad on the second flexible circuit board, arranging an adhesive on the welding area, the pad on the second flexible circuit board penetrates through the adhesive and is inserted into the pad on the first flexible circuit board, so that the pad on the first flexible circuit board and the pad on the second flexible circuit board are concentric rings, and printing solder paste in the concentric rings through SMT steel meshes; and connecting the first flexible circuit board and the second flexible circuit board through a welding furnace.
2. The flexible circuit board with different annular pads according to claim 1, wherein: the at least one pad is two or more.
3. A different annular pad flexible wiring board according to claim 1 or 2, characterized in that: and the welding pads on two adjacent circuit channels on the same circuit board are arranged at intervals.
4. A different annular pad flexible wiring board according to claim 1 or 2, characterized in that: the flexible printed circuit board further comprises a protective film, and the first flexible printed circuit board and the second flexible printed circuit board are wrapped by the protective film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920617664.0U CN210432044U (en) | 2019-04-30 | 2019-04-30 | Different annular pad flexible line way board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920617664.0U CN210432044U (en) | 2019-04-30 | 2019-04-30 | Different annular pad flexible line way board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210432044U true CN210432044U (en) | 2020-04-28 |
Family
ID=70370772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920617664.0U Active CN210432044U (en) | 2019-04-30 | 2019-04-30 | Different annular pad flexible line way board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210432044U (en) |
-
2019
- 2019-04-30 CN CN201920617664.0U patent/CN210432044U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518119 BYD Industrial Park, Yanan Road, Kwai Chung street, Dapeng District, Shenzhen, Guangdong Patentee after: Shenzhen helitai photoelectric Co., Ltd Address before: 518119 BYD Industrial Park, Yanan Road, Kwai Chung street, Dapeng District, Shenzhen, Guangdong Patentee before: SHENZHEN BYD ELECTRONIC COMPONENT Co.,Ltd. |