CN2657217Y - Connectors for flexible substrates - Google Patents

Abstract

A connector for flexible substrate is assembled on motherboard, which comprises an insulating housing, a plurality of conductive terminals and a tightening device. The packing device comprises a guide piece assembled on the connector and a packing piece pivoted with the guide piece, wherein the guide piece is provided with a guide groove for pivoting and guiding the packing piece, a welding leg for welding on a mainboard and an interference body for assembling and interfering with an insulating shell of the connector. The packing member has a pivot pivoted to the guide slot, a first positioning slot and a second positioning slot abutted to the conductive terminal, and a pressing portion opposite to the first and second positioning slots. The connector is characterized in that the pressing piece is kept at a zero-friction inclined position when the flexible circuit board is inserted before the flexible circuit board is inserted into the connector, so that the flexible circuit board can be conveniently placed without friction, and then the pressing piece slides to the second positioning groove along the first positioning groove by transverse translation through the pivot of the pressing piece and the guide groove of the guide sheet, so that the flexible circuit board is pressed against the second positioning groove, and stable telecommunication contact is achieved.

Description

Connectors for flexible substrates

technical field

The utility model relates to a connector for a flexible circuit board, in particular to a connector for a flexible circuit board that connects a flexible circuit board with a main board with a low insertion force and can provide hand feeling during operation and positioning. Connector.

Background technique

With the help of its flexible characteristics, flexible circuit boards are often used on objects that need to be connected by telecommunications at a distance from the main board, such as: liquid crystal display screens, power supply units, etc. Therefore, one end of the flexible circuit board is equipped with A plurality of conductive contacts are used to connect with the connector on the motherboard, so as to break through the space limitation and achieve the purpose of telecommunications connection.

A conventional connector arranged on the main board for telecommunication connection with the flexible circuit board is to clamp the flexible circuit board and an urging member by clamping to achieve telecommunication contact. As shown in FIG. 9 , the conductive terminal 60 of the traditional connector 6 has a welding end 601, which is used for welding with the main board 9, and the contact arm 602 is U-shaped, and its open end 603 is used for the flexible circuit board 7 With the insertion of the pressing member 8, when the flexible circuit board 7 and the pressing member 8 are moved laterally and pressed into position, the plurality of contacts 70 on one end of the flexible circuit board 7 will contact the contact arm 602, so that the main board 9 It is in telecommunication communication with the flexible circuit board 7 .

However, in order to ensure stable contact with these contacts 70 of the flexible circuit board 7, the width of the opening 603 of the contact arm 602 is limited within a certain range, and the width must accommodate the flexible circuit board 7 and the pressing member 8 at the same time. Therefore, when the flexible circuit board 7 and the pressing member 8 are moved laterally and inserted tightly, not only the moving stroke is long and the frictional force is large, which makes the operation difficult, but also relatively time-consuming. , in addition to easily causing the soldering end 601 of the conductive terminal 60 to loosen, causing poor telecommunications contact, the contact arm 602 will easily cause damage to the contacts 70 of the flexible circuit board 7, thereby affecting the service life. Furthermore, the flexible circuit board 7 is pushed and inserted into the telecommunication contact with the contact arm 602 without feeling at all, that is, the entire stroke of pushing and inserting to the telecommunications contact is in a state of tight fit. Therefore, when the flexible circuit board 7 and the contact are reached The telecommunication contact of the arm 602 cannot be known, so misjudgment may occur.

Contents of the invention

The main purpose of this utility model is to provide a connector for flexible circuit boards that can carry out telecommunications docking with low insertion force, so as to prevent the wear and tear of components during the telecommunications docking process, ensure the quality of telecommunications transmission, and make the telecommunications docking operation more efficient. In order to be convenient and have an operational feel, it achieves the effect of easy use and stable and reliable telecommunication transmission.

Another object of the present invention is to provide a connector with low insertion force so that when the flexible circuit board is inserted into the connector, the impact on the soldering end of the connector conductive terminal can be minimized to ensure the connector's service life.

In the utility model, the connector for the flexible circuit board is installed on the main board, which includes an insulating shell, a plurality of conductive terminals and a pressing device, wherein the pressing device includes a guide sheet assembled on the connector, and a guide The lead piece is pivotally connected to the pressing piece, and the guide piece has a guide groove for pivoting and guiding the pressing piece, a welding foot for welding to the main board, and an interference body for assembling and interfering with the insulating housing of the connector; The pressing member has a pivot pivotally connected to the guide groove, a first positioning groove and a second positioning groove against the conductive terminal, and a pressing portion corresponding to the first and second positioning grooves.

In the connector of the utility model, when the flexible circuit board is plugged into the connector, the pressing member is kept at an inclined position with zero friction when the flexible circuit board is inserted, so as to facilitate the frictionless placement of the flexible circuit board. Then, use the pivot of the pressing piece and the guide groove of the guide piece to make the pressing piece slide along the first positioning groove to the second positioning groove with lateral translation, and press the flexible circuit board to achieve a stable Telecommunications contacts.

In addition, the groove depth of the first positioning groove is greater than that of the second positioning groove, that is, the groove depth of the first positioning groove can make the pressing member be located at the first position without friction, and the groove depth of the second positioning groove can make the pressing The part is located at the second position of pressing, therefore, when the pressing part is laterally translated from the first positioning slot to the second positioning slot in the utility model, there will be a pressing force, so as to provide obvious operation feeling, and from the flexibility During the whole process of inserting the circuit board into the telecommunication contact, the tightness is generated only when the first positioning slot crosses the second positioning slot, thus providing a low insertion force telecommunication contact effect.

Description of drawings

The specific embodiments of the present utility model will be described in further detail below in conjunction with the accompanying drawings.

Fig. 1 is a three-dimensional exploded view of a connector for a flexible substrate in the present invention;

Fig. 2 is a three-dimensional combined view of the connector shown in Fig. 1;

Fig. 3 is a sectional view of the connector shown in Fig. 2 along line 3-3;

Fig. 4 is a cross-sectional view of the pivot of the connector urging member shown in Fig. 3 after being moved laterally;

Fig. 5 is a sectional view of the connector shown in Fig. 2 along line 5-5;

Figures 6 to 8 are schematic diagrams of continuous actions when the flexible circuit board and the connector are telecommunications connected in the utility model;

Fig. 9 is a sectional view of a conventional connector for flexible substrates.

Detailed ways

As shown in Figure 1 and Figure 2, the connector 1 for flexible substrates in the utility model mainly includes: an insulating shell 2, a plurality of conductive terminals 3 and a tightening device 4 and other structures, wherein the insulating shell 2 is a prolate body , on the opposite sides of the long axis are provided with an insertion surface 20 and a welding surface 21 respectively, a socket 201 is provided on the insertion surface 20, and a combination surface 22 with a drop is provided between the insertion surface 20 and the welding surface 21 . In addition, a plurality of receiving holes 23 are disposed between the socket 201 and the assembly surface 22 , and two sides of the assembly surface 22 are provided with assembly grooves 24 for assembling the pressing device 4 .

A plurality of conductive terminals 3 are accommodated in these receiving holes 23, and each conductive terminal has a contact portion 30, an interference portion 31, and a welding portion 32, wherein the contact portion 30 is U-shaped and assembled adjacent to the socket 201, the U-shaped contact portion 30 One end 301 of one end 301, as shown in FIG. 5 , has a convex arc 303 formed on its end edge, which is used to abut against the components of the pressing device 4 , and the other end 302 is used to contact with the contact point (not shown in the figure) of the flexible circuit board 7 . The interfering portion 31 is used for interfering with the inner wall of the receiving hole 23 during assembly, so as to assemble and position the conductive terminal 3 . The soldering portion 32 is arranged horizontally and is exposed to the soldering surface 21 after assembly, so as to facilitate surface-adhesive soldering with the motherboard.

As shown in Figure 1, the pressing device 4 is pivotally arranged between the assembly surface 22 and the assembly groove 24, and includes a guide piece 40 and a pressing piece 41, wherein the guide piece 40 has a function for pivoting and guiding the pressing piece. 41 guide slot 401 , solder pin 402 for soldering to the motherboard, and interference body 403 for assembling and interfering with the insulating housing 2 . The guide groove 401 of the guide piece 40 is an oblong groove, and is arranged parallel to the assembly groove of the insulating housing 2 , and its groove width is the travel distance for the pressing member 41 to move from the first position to the second position. The pressing member 41 has a pivot 411 that is pivotally connected to the guide groove 401, a first positioning groove 412 and a second positioning groove 413 that abut against one end 301 of the U-shaped contact portion 30, and a position relative to the first and second positioning grooves. As shown in FIG. 5 , the pressing portion 414 is further provided with a distance 45 between the pivot 411 and the first and second positioning slots 412 , 413 to provide proper assembly flexibility for the pivot 411 and facilitate assembly. In addition, the groove depth of the first positioning groove 412 is greater than that of the second positioning groove 413, that is, the groove depth of the first positioning groove 412 can make the pressing member 41 be located in the first position without friction, while the groove depth of the second positioning groove 413 The urging member 41 can be located at the second urging position, thus, only when the urging member 41 is displaced from the first positioning slot to the second positioning slot can there be pressing force. The pressing part 414 is an arc-shaped convex body integrally extended from the pressing part 41. When the pressing part 41 rotates and moves laterally, it slides from the first position (ie, the first positioning groove 412) to the second position (the first positioning groove 412). After the two positioning slots 413 ), the other end 302 of the U-shaped contact portion 30 can be clamped on the flexible substrate and communicated with it.

As shown in Figures 3 and 4, the rotation of the pressing member 41 in the utility model is to use the guide slots 401 of the guide pieces 40 on both sides as the pivot center, and when moving laterally, the pivots 411 on both sides are used to rotate. Slide and position along the guide groove 401. As shown in Figures 6 to 8, when the connector 1 of the present invention is telecommunications-docked with the flexible substrate, as shown in Figure 6, the pressing member 41 is first rotated at the first position of zero friction, and at this time The flexible substrate 7 can be easily inserted into the socket 201, and then, as shown in FIG. 7, the pressing member 41 is rotated to be horizontal. At this time, because the groove depth of the first positioning groove 412 is relatively deep, there will be no gap when rotating. Friction force, secondly, pushes the first positioning groove 412 to the second positioning groove 413 with lateral translation again, as shown in Figure 8, at this moment, because the groove depth of the second positioning groove 413 is relatively shallow, will make the pressing member 41 The flexible substrate 7 is pressed against by the pressing portion 414 to achieve telecommunication contact with the end 302 of the U-shaped contact portion 30 . Therefore, the pressing force of the present invention when the pressing member 41 laterally translates from the first positioning groove 412 to the second positioning groove 413 provides an obvious operating feel. In addition, during the whole process from the insertion of the flexible circuit board 7 to the telecommunication contact, the tightness occurs only when the first positioning groove 412 crosses the first positioning groove 413 , thus providing a low insertion force telecommunication contact effect.

To sum up, the connector for flexible substrates in the present invention can indeed achieve the expected purpose, and has certain novelty and progress.

In addition, although the preferred embodiment of the utility model has been described above, it cannot be regarded as the protection scope of the utility model, that is, it should be clear to those of ordinary skill in the art that without departing from the design spirit of the utility model, Equivalent changes and modifications can be made to it, therefore, all equivalent changes and modifications made without departing from the design spirit of the present utility model should be considered as falling within the protection scope of the present utility model.

Claims (7)

1. A connector for a flexible substrate, assembled on a motherboard, characterized in that: comprising: An insulating shell, the insulating shell is a flat elongated body, with an insertion surface and a welding surface on opposite sides of the long axis, a socket is provided on the insertion surface, and a socket is provided between the insertion surface and the welding surface. There is a combination surface with a drop, and a plurality of receiving holes are provided between the socket and the combination surface, and assembly grooves are provided on both sides of the combination surface; A conductive terminal, the conductive terminal is accommodated in the receiving hole, has a contact portion, an interference portion, and a welding portion, wherein the contact portion is U-shaped, assembled adjacent to the socket, and the welded portion is assembled and exposed on the welding surface; The pressing device, which is pivotally arranged between the assembly surface and the assembly groove, includes a guide piece and a pressing piece, wherein the guide piece has a guide groove for pivoting and guiding the pressing piece, and is used for welding The welding foot on the main board, and the interference body used for assembling and interfering with the insulating housing; the pressing member has a pivot pivotally connected to the guide groove, a first positioning groove and a second positioning groove that abut against one end of the U-shaped contact portion. Two locating grooves, and relative to the first and second locating grooves and together with the other end of the U-shaped contact part, the abutment can be located at the first position without friction and the second position with friction as the pressing member rotates. pressurized part. 2. The connector for flexible substrates according to claim 1, wherein the depth of the first positioning groove is greater than that of the second positioning groove. 3. The connector for flexible substrates according to claim 1 or 2, characterized in that: the end of the conductive terminal that abuts against the first and second positioning grooves is formed to be embedded in the first and second positioning grooves. The convex arc of the card. 4. The connector for flexible substrates according to claim 3, wherein the pressing portion is an arc-shaped convex body integrally extended from the pressing member. 5. The connector for flexible substrates according to claim 4, characterized in that: the guide groove of the guide piece is an oblong groove, and is arranged parallel to the assembly groove of the insulating housing, and the groove width is 100mm. The travel distance for the component to be displaced from the first position to the second position. 6. The connector for flexible substrates according to claim 5, characterized in that: there is a distance between the pivot of the pressing member and the first and second positioning grooves, which can provide proper assembly flexibility for the pivot . 7 . The connector for flexible substrates according to claim 6 , wherein the soldering portion of the conductive terminal is horizontally and oppositely extended from the U-shaped contact portion. 8 .

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