TWM645165U - Improved Structure of Flexible Circuit Board - Google Patents

Abstract

The present invention provides an improved structure of a flexible circuit board, which includes a body. The front end of the body is provided with a first clamping part, and the opposite sides of the first clamping part in the width direction are respectively provided with a positioning part. The positioning part has a positioning surface close to the front end of the first clamping part. When the first clamping part is inserted into a correct position in a joint, the positioning surfaces of the positioning parts will be in contact with the rear surface of the joint. Flush. By further providing a positioning part on both sides of the clamping part of the general flexible circuit board, when the flexible circuit board is inserted into the corresponding connector through the first clamping part, the positioning surfaces of the positioning parts can be aligned with the Whether the rear surface of the connector is flush, the connection status of the first clamping part and the connector can be quickly determined, effectively improving the assembly efficiency of the flexible circuit board and the connector.

Description

Improved structure of flexible circuit boards

The invention relates to a flexible circuit board, in particular to an improved structure of the flexible circuit board.

There is a known traditional flexible circuit board (Flexible Printed Circuit, FPC). As shown in Figure 10, the traditional flexible circuit board includes a main body 31. The front end of the main body 31 is provided with a clamping portion 32. The clamping portion 32 A plurality of conductive pads 33 are arranged at intervals on one side of the circuit board. When the clamping portion 32 is inserted into a connector on a printed circuit board (not shown in the figure), the conductive pads 33 will be in contact with the connector. A plurality of conductive terminals come into contact to achieve conduction. In addition, a rectangular recess is provided on opposite sides of the clamping part 32. When the clamping part 32 is inserted into the correct position in the joint, the recesses can be connected with the plurality of convex parts in the joint. Carry out clamping to lock the connection state between the clamping part 32 and the connector.

In order to facilitate the judgment of whether the clamping part 32 is inserted into the correct position in the connector, the traditional judgment method is to print a white paint line 34 on the main body 31 as a judgment standard. When the clamping part 32 is inserted into the connector, If there is a gap between the white paint line 34 on the main body 31 and the edge of the joint, it means that the clamping part 32 and the joint are not connected in place; if the white paint line 34 on the main body 31 and the edge of the joint When flush, the concave parts will be locked with the convex parts in the joint, which means that the clamping part 32 and the joint are connected in place.

However, in the past, judging whether the white paint line 34 on the main body 31 was flush with the edge of the connector was observed through human eyes, so misjudgment was easy to occur. The manufacturer could not quickly confirm the clamping part 32 and the connector during assembly. Whether it is connected in place will extend the working time to judge whether the insertion position is correct.

With the advancement of technology, automated equipment (such as image recognition) can replace the use of human eyes for judgment, effectively reducing labor costs and improving assembly efficiency. However, because the process accuracy of printing the white paint line 34 on the main body 31 still has a large tolerance (±0.2 to 0.3mm), the traditional flexible circuit board cannot meet the high-precision alignment tolerance (≦0.05mm). Product demand, therefore misjudgments still often occur, and the improvement in assembly efficiency is still limited.

Therefore, how to provide a solution to the above-mentioned limited assembly efficiency is indeed necessary to propose a better solution.

In view of the above-mentioned shortcomings of the prior art, the main purpose of the present invention is to provide an improved structure of a flexible circuit board, which can effectively solve the above-mentioned problem of limited assembly efficiency by simply improving the basic components.

In order to achieve the above purpose, the main technical means adopted by this new model are that the improved structure of the aforementioned flexible circuit board includes: A body has a front end and a back end; A first clamping part is located at the front end of the body; Two or more positioning parts are provided on opposite sides of the first clamping part in the width direction; Wherein, each of the positioning parts has a positioning surface close to the front end of the first clamping part. When the first clamping part is inserted into a correct position in a joint, the positioning surfaces of the positioning parts are in contact with the front end of the first clamping part. The rear surface of the joint is flush.

Through the above structure, the present invention provides positioning parts on opposite sides of the first clamping part in the width direction, so that when the first clamping part is inserted into the corresponding connector during assembly, the manufacturer can The connection status of the first clamping part and the joint can be quickly determined based on whether the positioning surfaces of the positioning parts are flush with the rear surface of the joint, thereby replacing the process of using white paint lines in the prior art, and effectively improving the softness Assembly efficiency of circuit boards and connectors.

Regarding the embodiment of the improved structure of the new flexible circuit board, please refer to Figures 1 and 2 at the same time. It includes a body 11, a first clamping part 12 and two or more positioning parts 13. The body 11 is in the form of It is plate-shaped and has a front end and a rear end. The front end of the body 11 is provided with the first clamping part 12, and the positioning parts 13 are respectively provided on the left and right sides of the width direction W of the first clamping part 12. On opposite sides, the positioning parts 13 each have a positioning surface close to the front end of the first clamping part 12. When the first clamping part 12 is inserted into a correct position in a connector 21, the positioning parts 13 have a positioning surface close to the front end of the first clamping part 12. The positioning surface of the positioning portion 13 is flush with the rear surface 2111 of the joint 21 .

By providing the positioning portions 13 on the left and right opposite sides of the first clamping portion 12 in the width direction W, the manufacturer can insert the first clamping portion 12 into the corresponding connector 21 during assembly. , the connection status of the first clamping part 12 and the joint 21 can be quickly determined based on whether the positioning surfaces of the positioning parts 13 are flush with the rear surface 2111 of the joint 21 , thereby replacing the use of white paint lines in the prior art. The process effectively improves the assembly efficiency of the flexible circuit board and the connector 21.

In this embodiment, a clamping structure 14 is formed on the left and right opposite sides of the first clamping part 12 in the width direction W. The clamping structures 14 are adjacent to the positioning parts 13 and compared with The positioning parts 13 are close to the front end of the first clamping part 12 , and the clamping structures 14 are used for clamping with the connector 21 . In this embodiment, the clamping structures 14 can be respectively a rectangular notch, a rectangular protrusion, a polygon, or other shapes that can improve the clamping effect with the joint 21 .

As shown in FIG. 2 , in this embodiment, a plurality of conductive pads 15 are provided on the upper surface and/or the lower surface of the first clamping part 12 , and the conductive pads 15 are adjacent to the first clamping part 12 At the front end, the conductive pads 15 are arranged at intervals.

Please refer to Figures 1 to 4 at the same time. In this embodiment, the joint 21 includes a positioning component 211 and a connecting component 212. The positioning component 211 is disposed on the connecting component 212. The positioning component 211 and the connecting component 212 A slot 213 is formed therebetween (as shown in FIGS. 1 and 2 ). The opening of the slot 213 is close to the front end of the first clamping part 12 . The first clamping part 12 is inserted through the opening of the slot 213 . located in the slot 213. The connection component 212 is provided with a plurality of conductive terminals 16 (as shown in FIG. 4 ), and the connector 21 connects to a printed circuit board (PCB) (not shown in the figure) through the conductive terminals 16 of the connection component 212 . ) connection, so that the flexible circuit board is connected to the printed circuit board through the connector 21.

Please refer to FIG. 5 . In this embodiment, the connecting component 212 is provided with a plurality of second clamping parts 214 , and the shapes of the second clamping parts 214 correspond to the shapes of the clamping structures 14 . The two clamping parts 214 each have a bump structure, and the second clamping parts 214 are used for clamping with the clamping structures 14 of the first clamping part 12; the conductive elements of the connecting component 212 The terminals 16 are disposed corresponding to the conductive pads 15 of the first clamping part 12 . In this embodiment, the conductive terminals 16 are arranged at intervals.

Please refer to FIGS. 1 , 3 and 4 at the same time. In this embodiment, the positioning component 211 of the joint 21 has a rear surface 2111 , and the rear surface 2111 is close to the front end of the first clamping part 12 . The positioning parts 13 of the flexible circuit board and the first clamping part 12 are integrally formed, and the positioning parts 13 each have a rectangular protruding structure. Each of the positioning parts 13 has a positioning surface (first positioning surface 131) close to the front end of the first clamping part 12. When the first clamping part 12 is inserted into the slot 213 through the opening, 213, the connection between the first clamping part 12 and the joint 21 can be determined based on whether the positioning surfaces (first positioning surfaces 131) of the positioning parts 13 are flush with the rear surface 2111 of the positioning component 211. status standards. If the positioning surfaces (first positioning surface 131) of the positioning parts 13 of the flexible circuit board are flush with the rear surface 2111 of the positioning component 211 of the connector 21, the first clamping parts 12 of the flexible circuit board will The clamping structure 14 clamps the second clamping parts 214 of the connection component 212 of the connector 21 to lock the connection state of the first clamping part 12 and the connector 21, and the first clamping The conductive pads 15 of the portion 12 are in contact with the conductive terminals 16 of the connecting component 212 to achieve conduction, indicating that the first clamping portion 12 is inserted into the correct position in the connector 21 .

In addition, please refer to Figures 1 and 5 at the same time. There is a positioning depth (first positioning surface 131) between the positioning surfaces (first positioning surfaces 131) of the positioning portions 13 of the flexible circuit board and the front end of the first clamping portion 12. Alignment depth D1), the alignment depth (first alignment depth D1) corresponds to the depth of the slot 213 of the connector 21, so that the positioning surfaces (first positioning surfaces 131) of the positioning parts 13 are in contact with the positioning component. When the rear surface 2111 of 211 is flush with each other, the front end of the first clamping part 12 conflicts with the slot 213 . In this embodiment, since the positioning parts 13 are formed by directly cutting the outer shape of the first clamping part 12, compared with the process accuracy of printing white paint lines in the prior art, the positioning parts 13 has high process accuracy, so that the first clamping part 12 can meet high-precision positioning requirements when inserted into the slot 213 of the connector 21 . When assembling, the manufacturer only needs to determine whether the positioning surfaces (first positioning surfaces 131) of the positioning parts 13 are flush with the rear surface 2111 of the positioning component 211, and can quickly confirm that the first clamping part 12 and the The connection state of the connector 21 effectively improves the assembly efficiency of the flexible circuit board and the connector 21 .

Please refer to FIGS. 6 to 9 at the same time. In another embodiment of the present invention, the positioning parts 13 of the flexible circuit board and the first clamping part 12 are integrally formed, and the positioning parts 13 are each in a rectangular shape. sunken structure. Each of the positioning parts 13 has a positioning surface (a second positioning surface 132 ) close to the front end of the first clamping part 12 . When the first clamping part 12 is inserted into the slot 213 through the opening, 213, the connection between the first clamping part 12 and the joint 21 can be determined based on whether the positioning surfaces (second positioning surfaces 132) of the positioning parts 13 are flush with the rear surface 2111 of the positioning component 211. status standards. If the positioning surfaces (second positioning surfaces 132) of the positioning parts 13 of the flexible circuit board are flush with the rear surface 2111 of the positioning component 211 of the connector 21 (as shown in FIG. 8), the first positioning surface of the flexible circuit board The clamping structures 14 of the clamping part 12 will clamp with the second clamping parts 214 of the connecting component 212 of the connector 21 to lock the connection state of the first clamping part 12 and the connector 21 , and the conductive pads 15 of the first clamping part 12 are in contact with the conductive terminals 16 of the connection component 212 to achieve conduction, indicating that the first clamping part 12 is inserted into the connector 21 Correct location.

In addition, please refer to Figure 6 and Figure 9 at the same time. There is a positioning depth (second positioning surface 132) between the positioning surfaces (second positioning surfaces 132) of the positioning portions 13 of the flexible circuit board and the front end of the first clamping portion 12. Alignment depth D2), the alignment depth (second alignment depth D2) corresponds to the depth of the slot 213 of the connector 21, so that the positioning surfaces (second positioning surfaces 132) of the positioning parts 13 are in contact with the positioning component. When the rear surface 2111 of 211 is flush with each other, the front end of the first clamping part 12 conflicts with the slot 213 . In this embodiment, since the positioning parts 13 are formed by directly cutting the outer shape of the first clamping part 12, compared with the process accuracy of printing white paint lines in the prior art, the positioning parts 13 has high process accuracy, so that the first clamping part 12 can meet high-precision positioning requirements when inserted into the slot 213 of the connector 21. When assembling, the manufacturer only needs to determine whether the positioning surfaces (second positioning surfaces 132 ) of the positioning parts 13 are flush with the rear surface 2111 of the positioning component 211 , and can quickly confirm that the first clamping part 12 and The connection state of the connector 21 effectively improves the assembly efficiency of the flexible circuit board and the connector 21 .

11:Ontology 12: The first fastening part 13: Positioning Department 131: First positioning surface 132: Second positioning surface 14: Clamping structure 15:Conductive pad 16:Conductive terminal 21:Connector 211: Positioning component 2111:Rear surface 212:Connection components 213:Slot 214: The second fastening part 31:Subject 32: Clamping part 33:Conductive pad 34:White paint line W: Width direction D1: First matchup depth D2: Second matchup depth

Figure 1 is a first perspective view of an improved structure of a flexible circuit board according to an embodiment of the present invention; Figure 2 is a second perspective view of the improved structure of a flexible circuit board according to an embodiment of the present invention; Figure 3 is a side view of the improved structure of a flexible circuit board according to an embodiment of the present invention; Figure 4 is a top view of the improved structure of the flexible circuit board according to one embodiment of the present invention; Figure 5 is a cross-sectional view of A-A' in Figure 3 according to an embodiment of the present invention; Figure 6 is a perspective view of an improved structure of a flexible circuit board according to another embodiment of the present invention; Figure 7 is a side view of an improved structure of a flexible circuit board according to another embodiment of the present invention; Figure 8 is a top view of the improved structure of a flexible circuit board according to another embodiment of the present invention; Figure 9 is a B-B’ cross-sectional view of Figure 7 according to another embodiment of the present invention; and Figure 10 is a top view of a traditional flexible circuit board in the prior art.

11:Ontology

12: The first fastening part

13: Positioning Department

131: First positioning surface

14: Clamping structure

21:Connector

211: Positioning component

2111:Rear surface

212:Connection components

213:Slot

W: Width direction

D1: First matchup depth

Claims (9)

An improved structure of a flexible circuit board, which includes: A body has a front end and a back end; A first clamping part is located at the front end of the body; and Two or more positioning parts are respectively provided on opposite sides of the first clamping part in the width direction; Wherein, each of the positioning parts has a positioning surface close to the front end of the first clamping part. When the first clamping part is inserted into a correct position in a joint, the positioning surfaces of the positioning parts are in contact with the front end of the first clamping part. The rear surface of the joint is flush. The improved structure of the flexible circuit board according to claim 1, wherein the positioning parts and the first clamping part are integrally formed, and the positioning parts respectively form a protruding structure. The improved structure of the flexible circuit board according to claim 1, wherein the positioning parts and the first clamping part are integrally formed, and the positioning parts each have a recessed structure. The improved structure of the flexible circuit board according to claim 1, wherein a plurality of conductive pads are provided on an upper surface and/or a lower surface of the first clamping part, and the conductive pads are adjacent to the first clamping part. At the front end of the part, the conductive pads are arranged at intervals. The improved structure of the flexible circuit board according to any one of claims 1 to 4, wherein a clamping structure is formed on both sides of the first clamping part in the width direction, and the clamping structures and the positioning parts are adjacent and closer to the front end of the first clamping part than the positioning parts, and the clamping structures are used to clamp the connector. The improved structure of the flexible circuit board as claimed in claim 5, wherein the clamping structures are respectively a rectangular notch, a rectangular protrusion or a polygon. The improved structure of the flexible circuit board as described in claim 5, wherein the connector includes: a connecting component; and A positioning component is provided on the connecting component, a slot is formed between the positioning component and the connecting component, and the first clamping part is inserted into the slot. The improved structure of the flexible circuit board according to claim 7, wherein the connecting component is provided with a plurality of second clamping parts, and the shapes of the second clamping parts correspond to the shapes of the clamping structures. The improved structure of the flexible circuit board according to claim 7, wherein there is an alignment depth between the positioning surfaces of the positioning parts and the front end of the first clamping part, and the alignment depth corresponds to the positioning depth of the slot. depth.

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