JP2006147408A - Flexible substrate - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a flexible substrate that can be prevented from coming off from a connector, without substantially changing the existing flexible substrate in any manner. <P>SOLUTION: This flexible substrate 11 which is prevented from coming off, when it is connected to the connector 1 is provided with a flexible substrate body 8 having a conductor 8a for contact with a terminal 5 installed in the connector 1, a reinforcing plate 10 layered on the flexible substrate body 8, and an engaging part 15 formed for preventing coming-off in the reinforcing plate 10. The engagement part 15 is constructed of a hole 15 passing through the reinforcing plate 10, a groove 15x, or a cutout 15Y, and its bottom part opening is covered by the surface of the flexible substrate body 8, and the conductor 8a is arranged in a projection face of the bottom part opening. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a flexible substrate such as an FPC (flexible printed circuit) or FFC (flexible flat cable) connected to a connector, and more particularly to a flexible substrate designed to prevent the connector from coming off.

  As a flexible substrate and a connector for connecting the substrate, those shown in FIG. 14 are known (see Patent Document 1). The connector c includes an actuator a that is pivotally supported by a housing h, an opening k that is opened and closed as the actuator a rotates, and a terminal t that is attached to the opening k. After inserting the flexible board f into the opening k in a standing state, the actuator a is tilted and the flexible board f is pressed against the contact part s of the terminal t by the pressing part p, and the conductor provided on the lower surface of the flexible board f It performs electrical connection with the terminal t.

  At this connection, the terminal t is elastically deformed and the flexible substrate f is pressed against the lower surface of the actuator a by the repulsive force, so that the flexible substrate f is sandwiched between the actuator a and the terminal t. This type of connector c is called a ZIF (Zero Insertion Force) type because it does not require an insertion force when the flexible board f is inserted, and is widely used in various electronic devices because of its good workability.

  By the way, in such a connector c, if the multi-polarization of the terminal t is promoted, the total repulsive force by each terminal t increases, so that it is necessary to rotate the actuator a to the closed position so as to sandwich the flexible board f. The operating force increases and workability deteriorates. In order to prevent this, a countermeasure can be considered in which the total repulsive force is reduced by reducing the repulsive force of each terminal t to reduce the operating force.

  However, since the contact pressure between the terminal t and the flexible substrate f is weakened in this way, the flexible substrate f is caused by some cause even though the actuator a is in a state of holding the flexible substrate f in the closed position. When the pulling force is applied, it is conceivable that the flexible substrate f comes out of the connector c.

  Further, in the so-called NON-ZIF type connector (the actuator a does not exist and the terminal t is elastically deformed by pushing the flexible board f into the opening k of the housing h), the flexible board f is connected to the terminal by the actuator a. Since it cannot be pressed against t, this unexpected loss is further conceived.

  Then, what was shown in FIG. 15 is proposed as invention which aimed at retaining of the flexible substrate f (refer patent document 2). This is because the locking holes g are provided on both sides in the vicinity of the tip of the flexible substrate f1, the protrusion a corresponding to the locking hole g is formed in the actuator a1 of the connector c1, and the base j of the connector c1 A hole m corresponding to the protrusion i is formed. When the actuator a1 is tilted after the flexible substrate f1 is inserted into the opening k1, the protrusion i passes through the locking hole g and fits into the hole m. The flexible substrate f1 is prevented from coming off.

Japanese Patent Laid-Open No. 10-12331 JP 2002-42980 A

  In the invention shown in FIG. 15, the rotation of the actuator a1 is skillfully used, and the projection i provided on the actuator a1 in the closed position is fitted into the hole m of the base j through the locking hole g of the flexible substrate f1. Therefore, unless the actuator a1 fixed in the closed position by the claw p and the concave portion q is opened, the engagement between the projection i and the engagement hole m is not released, and the flexible substrate f1 is prevented from coming off. The

  However, since the engagement hole g must be formed in the flexible substrate f1 so as to avoid the conductor r arranged along the longitudinal direction, the conductor r is arranged with the width of the flexible substrate f1 larger than usual. It is necessary to provide an unoccluded meat portion d, and to form the locking hole g in the surplus portion d. For this reason, as a result, the flexible substrate f1 becomes wider than the normal type, and the flexible substrate f1 with the above-described fillet portion d has to be made completely, and the manufacturing apparatus for the substrate f1 needs to be significantly changed. The manufacturing cost of f1 increases.

  In addition, since the connector c1 that receives the flexible substrate f1 must be wider than the normal type by an amount corresponding to the above-described thick portion d, the manufacturing apparatus for the connector c1 also needs to be significantly changed, and the manufacturing cost of the connector c1 is increased. Also up. Furthermore, since the mounting area of the connector c1 increases, it also goes against the need for downsizing of electronic devices.

  An object of the present invention, which was created in view of the above circumstances, is to provide a flexible board that can achieve the prevention of disconnection from the connector without substantially changing any existing flexible board.

  In order to achieve the above object, the present invention provides a flexible board that is prevented from coming off when connected to a connector, and has a conductor for contacting a terminal provided in the connector, and the flexible board. A reinforcing plate laminated on the main body, and an engaging portion formed on the reinforcing plate for preventing the above-mentioned retaining, the engaging portion comprising a hole, a groove or a notch penetrating the reinforcing plate, The bottom opening is closed by the surface of the flexible substrate body, and the conductor is disposed in the projection plane of the bottom opening.

  It is preferable that the reinforcing plate is stacked on the distal end portion of the flexible substrate body, and the shape of the distal end portion of the reinforcing plate matches the shape of the distal end portion of the flexible substrate body.

  The flexible substrate according to the present invention can exhibit the following effects.

  (1) Since the reinforcing plate laminated on the flexible substrate main body is provided with the engaging portion for preventing the flexible substrate main body from being detached, the flexible substrate main body itself can be prevented from coming off without any change. Therefore, an existing flexible substrate can be used for the flexible substrate body, and research investment and capital investment for designing and manufacturing a new flexible substrate are not required at all, resulting in a low cost.

  (2) Since the engaging portion is provided on the reinforcing plate stacked on the flexible substrate body without forming the engaging portion for preventing the flexible substrate body itself from coming off, the conductor provided in the flexible substrate body The engaging portion can be disposed above the flexible substrate body, and it is not necessary to increase the width of the flexible substrate body.

  (3) Since the engaging portion is composed of a hole penetrating the reinforcing plate, the depth of the hole, that is, the engaging depth can be obtained up to a dimension equal to the thickness of the reinforcing plate, and connected to the connector. When it is done, it will be firmly caught and the removal performance will increase.

  (4) Since the strength of the portion where the reinforcing plates are laminated is improved, the operation for connecting the flexible board to the connector becomes easy.

  Preferred embodiments of the present invention will be described with reference to the accompanying drawings.

  FIG. 1 is an explanatory diagram of the flexible substrate 11 according to the present embodiment. The flexible substrate 11 is prevented from being detached when connected to a connector 1 described later, and a reinforcing plate 10 is laminated on the flexible substrate main body 8, and an engaging portion for retaining the above-described retaining on the reinforcing plate 10. It is characterized in that (hole 15) is provided.

  The flexible substrate body 8 includes a core material 8b made of a film-like insulator having flexibility, a plurality of conductors 8a provided on the lower surface of the core material 8b along the longitudinal direction thereof, and the conductor 8a and the core material except for the tip. And an insulating material (insulating film) 8c for covering 8b. The conductor 8a has a pitch and a number corresponding to the terminal 5 so that it can be connected to a contact portion 5d of the terminal 5 provided in the connector 1 described later.

  The reinforcing plate 10 is mounted and laminated on the upper surface of the core material 8b via an adhesive layer (non-conductive adhesive layer or the like) 13. The reinforcing plate 10 is made of a non-conductive material plate formed from a material such as resin or plastic, and has a sufficient thickness (for example, 0.7 mm) compared to the thickness of the flexible substrate body 8 (for example, 0.3 mm). And increasing the rigidity of the distal end portion of the flexible substrate main body 8 and improving the workability when the flexible substrate 11 is inserted into the opening 4. The above numerical values (0.3 mm, 0.7 mm) are examples.

  The reinforcing plate 10 is formed in a rectangular shape when viewed from the top so as to match the shape of the tip of the flexible substrate body 8 (both ends in the width direction and the tip in the length direction), and is laminated and bonded to the tip. Just overlap. Thus, since the reinforcing plate 10 does not protrude from the tip portion in the width direction and / or the length direction of the flexible substrate body 8, there is no waste. However, the reinforcing plate 10 may protrude slightly outward from the shape of the distal end portion of the flexible substrate body 8, or may be slightly pulled inward.

  The reinforcing plate 10 is formed with a hole 15 as an engaging portion for preventing the connector 1 from coming off, for engaging with an engaged portion (convex portion 16) provided in the connector 1, as will be described later. ing. The holes 15 are formed at both ends in the width direction of the reinforcing plate 10 so as to penetrate a pair of upper and lower surfaces. By laminating the reinforcing plate 10 in which the holes 15 are formed on the upper surface of the flexible substrate body 8, the bottom opening of the holes 15 is closed with the adhesive layer 13. At the top opening of the hole 15, a tapered portion 15 a is formed which serves as a guide when an engaged portion (convex portion 16) provided in the connector 1 described later is inserted. Note that the bottom opening of the hole 15 may be directly covered with the substrate body 8 instead of the adhesive layer 13.

  A conductor 8 a provided in the flexible substrate body 8 is disposed in the projection plane of the hole 15. That is, since the hole 15 is not directly formed in the flexible substrate body 8 but is formed in the reinforcing plate 10 laminated on the substrate body 8, it is disposed above the conductor 8a of the substrate body 8 when viewed from above. It is possible to do that. If the hole 15 is directly formed in the substrate body 8, it is necessary to arrange the hole 15 at a position where the conductor 8a is avoided when the substrate body 8 is viewed from above in order to avoid interference between the hole 15 and the conductor 8a. Although it occurs, such a need does not occur in the illustrated example.

  The above-mentioned flexible substrate 11 is connected to the connector 1 (ZIF type) shown in FIGS.

  As shown in FIGS. 2 and 3, the connector 1 includes a housing 2 formed of an insulating material such as resin, a rotating member 3 (hereinafter referred to as an actuator) pivotally supported by the housing 2, and a rotation of the actuator 3. And has an opening 4 formed in the housing 2 so as to be opened and closed, and a plurality of terminals 5 attached to the housing 2. The actuator 3 is formed of an insulator and is pivotally supported on the housing 2 via a metal fitting 6.

  The terminal 5 is formed by punching a thin metal plate or the like. As shown in FIGS. 4 and 5, the terminal 5 is soldered to a mounting portion 5a inserted into a mounting groove 7 formed in the housing 2 and a circuit board (not shown). A tail portion 5b to be fixed, a bent portion 5c extending in the direction of the opening 4, and a contact portion formed at the tip of the bent portion 5c and in contact with the conductor 8a (see FIG. 1) of the flexible substrate body 8. 5d. The pitch and number of terminals 5 correspond to the conductor 8a.

  2 and 4, the connector 1 is in an open position where the actuator 3 is opened to open the opening 4, and the tip of the flexible substrate 11 shown in FIG. 1 (a reinforcing plate 10 is laminated on the substrate body 8). 3) is inserted into the opening 4, and then the actuator 3 is tilted to the closed position as shown in FIGS. 3 and 5, so that the tip of the flexible substrate 11 is connected to the pressurizing part 3a of the actuator 3 and the terminal. And 5 contact portions 5d.

  Specifically, as shown in FIG. 4, when the actuator 3 is set in the open position and the tip of the flexible substrate 11 is inserted into the opening 4, the interval between the narrowest part between the contact portion 5 d and the actuator 3 is The thickness is set wider than the thickness of the tip of the substrate 11, and a gap is secured between the substrate 11 and the actuator 3. For this reason, the flexible substrate 11 can be inserted into the opening 4 with zero insertion force (ZIF type). The flexible substrate 11 is positioned by abutting the tip of the flexible substrate 11 on the abutting portion 18 formed in the housing 2.

  After that, as shown in FIG. 5, when the actuator 3 is tilted to the closed position, the upper surface of the flexible substrate 11 is pressed against the actuator 3, and the lower surface of the substrate 11 is pressed against the contact portion 5 d of the terminal 5. The portion 5c is slightly elastically deformed downward from its root, and the flexible substrate 11 is sandwiched between the actuator 3 and the terminal 5 by the repulsive force. Then, the conductor 8 a (see FIG. 1) of the flexible substrate body 8 is pressed against the contact portion 5 d of the terminal 5.

  On the back surface of the actuator 3, that is, the surface that contacts the top surface of the reinforcing plate 10 when the actuator 3 is tilted, a convex portion 16 is provided as an engaged portion for engaging with the hole 15. . The convex portions 16 are formed in a cylindrical shape having a diameter that can be inserted into the hole 15, and a pair is formed at both end portions in the width direction of the actuator 3 corresponding to the positions of the holes 15. The height of the convex portion 16 is equal to or less than the depth of the hole 15.

  The actuator 3 is held in the closed position by the lock mechanism 12. As shown in FIG. 2, the lock mechanism 12 includes a lock hole 12 a formed in the metal fitting 6, and a lock claw 12 b formed at the end in the width direction of the actuator 3. As shown in FIG. 3, in the lock mechanism 12, when the actuator 3 is tilted, the metal fitting 6 is elastically deformed so that the lock claw 12b engages with the lock hole 12a and holds the actuator 3 in the closed position.

  A procedure for connecting the flexible substrate 11 to the connector 1 will be described.

  As shown in FIGS. 2 and 4, the actuator 3 is erected to open the opening 4, and the distal end portion of the flexible substrate 11 shown in FIG. 1 is inserted into the opening 4 and brought into contact with the abutting portion 18. . At this time, since the distance between the narrowest portion between the actuator 3 and the contact portion 5d of the terminal 5 is set wider than the thickness of the tip of the substrate 11, the resistance of the flexible substrate 11 is substantially zero. Thus, the advantage of the ZIF type connector 1 is not impaired.

  Thereafter, as shown in FIGS. 3 and 5, the actuator 3 is tilted. Then, the pressurizing portion 3 a on the lower surface of the actuator 3 presses the flexible substrate 11 downward, and the conductor 8 a exposed at the lower surface tip of the flexible substrate body 8 is pressed against the contact portion 5 d of the terminal 5. As a result, the bent portion 5c is slightly elastically deformed downward with the root as a base point, and the contact portion 5d is pressed against the conductor 8a by the repulsive force, and electrical connection between the flexible substrate 11 and the connector 1 is achieved.

  As the actuator 3 in the open position is turned to the closed position, the convex portion 16 provided on the back surface of the actuator 3 fits into the hole 15 provided in the reinforcing plate 10 to prevent the flexible substrate 11 from coming off. . That is, the actuator 3 has a function of pressing and holding the flexible substrate 11 against the terminal 5 and a function of preventing the flexible substrate 11 from coming off. As long as the actuator 3 maintains the closed position, the engagement between the convex portion 16 and the hole 15 is not released, and the flexible substrate 11 does not come out of the connector 1.

  Here, the actuator 3 is held in the closed position by the lock claw 12b constituting the lock mechanism 12 engaging the lock hole 12a. For this reason, the engagement between the convex portion 16 and the hole 15 is not released, and the flexible substrate 11 is reliably prevented from coming off.

  When the flexible substrate 11 is removed from the connector 1, a convex portion of the actuator 3 is obtained by placing a finger on the recess 3 b formed at the tip of the actuator 3 and rotating the actuator 3 to the open position in FIG. 3. Since 16 is removed from the hole 15 of the reinforcing plate 10 and returns to the state of FIG. 3, the flexible substrate 11 can be easily detached from the connector 1.

  The flexible substrate 11 according to the present embodiment can exhibit the following effects.

  Since the reinforcing plate 10 laminated on the flexible substrate main body 8 is provided with the engaging portion (hole 15) for preventing the removal, the flexible substrate main body 8 itself can be prevented from coming off without any change. Therefore, by diverting an existing flexible substrate to the flexible substrate body 8, the substrate itself can be prevented from coming off without any change, and research investment for designing and manufacturing the flexible substrate body 8 newly.・ Capital investment is unnecessary and the cost is low.

  More specifically, for example, in the conventional type shown in FIG. 15, since the engagement hole g is formed in the flexible substrate f1 itself, the engagement hole g must be formed in the substrate f1 while avoiding the conductor r. . For this reason, a thick portion d having no conductor r is provided on both sides of the flexible substrate f1, and an engagement hole g is formed in the thin portion d. In this way, the width of the flexible substrate f1 must be expanded. In other words, it is necessary to drastically change the manufacturing apparatus for the flexible substrate f1, and an increase in cost is inevitable. On the other hand, in this embodiment, since the existing flexible substrate can be used as it is for the flexible substrate body 8, the cost is very low.

  Furthermore, since the hole 15 is provided in the reinforcing plate 10 laminated on the flexible substrate main body 8 without forming the hole 15 for preventing the flexible substrate main body 8 itself from being detached, The hole 15 can be arranged above the provided conductor 8a, and it is not necessary to increase the width of the flexible substrate body 8. That is, in the present embodiment, it is not necessary to form the engagement hole g by avoiding the conductor r in the substrate f1 as in the conventional type shown in FIG. 15, and the conductor 8a is arranged in the projection plane of the hole 15. Therefore, it is not necessary to expand the width of the substrate body 8, and the existing flexible substrate can be used as it is for the flexible substrate body 8.

  Further, in the conventional type shown in FIG. 15, the width of the substrate f1 is widened by providing the above-mentioned thin portions d on both sides of the flexible substrate f1, and accordingly the opening k1 of the connector c1 needs to be widened accordingly. Therefore, the injection mold for manufacturing the connector c1 has to be significantly changed, and an increase in cost is inevitable. On the other hand, in the present embodiment, since the holes 15 are provided in the reinforcing plate 10 laminated on the flexible substrate body 8, the conductor 8a is seen when the flexible substrate body 8 is viewed from the upper surface as shown in FIG. The hole 15 can be disposed above the substrate body 8, and it is not necessary to increase the width of the substrate body 8. Therefore, it is not necessary to change the width of the opening 4 of the connector 1, and the cost for manufacturing the connector 1 is low.

  In addition, increasing the width of the opening k1 of the connector c1 as in the conventional type shown in FIG. 15 increases the size of the connector c1 itself, and the area required for mounting the connector c1 on the circuit board is increased. This will lead to an increase in the market, and will go against the market needs for downsizing electronic devices. On the other hand, according to the flexible substrate 11 of the present embodiment, the reinforcing plate 10 has a shape that does not protrude from the front end portion of the substrate body 8 in the width direction and the length direction, so the width of the opening 4 of the connector 1 is increased. Therefore, the mounting area of the connector 1 does not increase.

  Further, when there is an existing injection mold for forming the actuator 3 without the convex portion 16, the convex portion 16 can be obtained simply by adding a recess corresponding to the convex portion 16 to the mold. Therefore, the connector 1 can be provided at low cost without any new investment.

  Further, since the hole 15 provided in the reinforcing plate 10 to form the engaging portion is a through hole, and the bottom opening of this hole 15 is closed by the upper surface of the flexible substrate body 8, the depth of the hole 15 (engagement) The combined depth) can be earned up to a dimension equal to the thickness of the reinforcing plate 10. Therefore, when the flexible substrate 11 is connected to the connector 1, the engaging depth of the convex portion 16 of the connector 1 engaged with the hole 15 can be increased as much as possible, and these are firmly hooked to improve the retaining performance. .

  Further, since the hole 15 penetrates the reinforcing plate 10, it can be easily formed by stamping or the like when forming the contour of the reinforcing plate 10. In other words, it is not necessary to form a bottomed hole in the reinforcing plate 10 by injection molding or the like, and the flexible substrate 11 (flexible substrate with a reinforcing plate) according to the present embodiment can be provided at low cost. However, injection molding or the like is not denied as a means for forming the hole 15.

  In addition, since the flexible board 11 is formed by laminating the reinforcing plate 10 on the distal end portion of the flexible board main body 8, the strength of the laminated part is improved, and an operator picks this part with a finger and opens the connector 1 Workability at the time of insertion into the portion 4 is improved.

  Further, since the flexible substrate 11 is prevented from coming off by engaging the convex portion 16 of the actuator 3 with the hole 15 of the reinforcing plate 10, the flexible substrate 11 can be pulled out depending on the repulsive force of the terminal 5 as in the prior art. There is no need to stop. Therefore, the repulsive force of the terminal 5 can be reduced to a minimum force necessary for electrical connection between the substrate 11 and the terminal 5. As a result, when connecting the flexible substrate 11 to the connector 1, the operating force required to rotate the actuator 3 in the open position to the closed position can be reduced, and workability is improved.

  6-9 is explanatory drawing which shows a mode that the flexible substrate 11 shown in FIG. 1 mentioned above is connected to the connector 21 of a NON-ZIF type.

  As shown in FIGS. 6 and 7, the connector 21 includes a housing 22 formed of an insulator such as a resin, an opening 24 formed in the housing 22 for inserting the tip of the flexible substrate 11, A ceiling portion 20 (see FIG. 8) formed inside the housing 22 to contact the upper surface of the reinforcing plate 10 of the substrate 11 inserted into the opening 24, and a housing to contact the insertion tip of the substrate 11. The abutting portion 19 formed inside the housing 22, a plurality of terminals 25 mounted inside the housing 22 so as to face the ceiling portion 20, and a rotating member comprising an insulator pivotally supported by the housing 22 23.

  The terminal 25 is formed by punching a thin metal plate or the like. As shown in FIGS. 8 and 9, the terminal 25 is soldered to a mounting portion 25a inserted into a mounting groove 27 formed in the housing 22 and a circuit board (not shown). It has a tail portion 25b to be fixed, a bent portion 25c extending in the direction of the opening 24, and a contact portion 25d formed at the tip of the bent portion 25c and in contact with the conductor 8a of the flexible substrate body 8. The pitch and number of the terminals 25 are set according to the conductor 8a of the flexible substrate 11.

  The rotating member 23 includes a pair of arm portions 23a pivotally supported at both ends in the width direction of the housing, and a girder portion 23b formed between the arm portions 23a. As shown in FIG. When the arm 23 b is tilted as shown in FIG. 9, the girder 23 b is positioned in front of the opening 24. Unlike the actuator 3 shown in FIGS. 2 to 5, the rotating member 23 does not have a function of pressing the substrate 11 against the terminal 25.

  6, the flexible substrate 11 shown in FIG. 1 is inserted into the opening 24 with the rotating member 23 in the open position as shown in FIG. 6, and the connector 21 is in the state shown in FIGS. Here, the distance between the ceiling portion 20 and the contact portion 25d of the terminal 25 is set to be a predetermined length narrower than the thickness of the tip portion of the substrate 11 (the laminated portion of the substrate body 8 and the reinforcing plate 10). The substrate 11 is inserted with a certain amount of resistance, and the bent portion 25c of the terminal 25 is slightly elastically deformed downward from its root, and the substrate 11 is placed between the ceiling portion 20 and the terminal 25 by the repulsive force. (NON-ZIF type). Then, the conductor 8 a of the flexible substrate 11 is pressed into contact with the contact portion 25 d of the terminal 25.

  Since the flexible substrate 11 is the same as that described with reference to FIGS. 1A and 1B, detailed description thereof will be omitted. However, as described above, the reinforcing plate 10 has an engaging portion as an engaging portion. A pair of holes 15 are formed. As shown in FIG. 9, a convex portion 36 as an engaged portion provided in the rotating member 23 is engaged with these holes 15 by the tilting rotation of the rotating member 23. The convex portion 36 is formed on the back surface of the beam portion 23 b of the rotating member 23, that is, on the surface located on the upper surface of the substrate 11 when the rotating member 23 is tilted. The convex portions 36 are formed in a columnar shape having a diameter that can be inserted into the hole 15, and a pair is formed at both ends in the width direction of the rotating member 23 so as to correspond to the positions of the holes 15.

  Even in the case of this NON-ZIF type connector 21, as shown in FIG. 8, the flexible substrate 11 is pushed into the opening 24 so that the conductor 8 a of the substrate body 8 is electrically connected to the terminal 25 of the connector 21. After entering the state, as shown in FIG. 9, the rotating member 23 is tilted so that the convex portion 36 of the rotating member 23 engages with the hole 15 of the reinforcing plate 10, so that the flexible substrate 11 is prevented from coming off. The The rotating member 23 is held in the closed position by a mechanism similar to the lock mechanism 12 shown in FIGS. And the same effect as the case of the ZIF type connector 1 shown in FIGS. 2-5 mentioned above can be exhibited.

  10 and 11 are explanatory views showing a state in which the flexible substrate 11 shown in FIG. 1 described above is connected to another NON-ZIF type connector 21x.

  In this connector 21x, the rotating member 23 in the connector 21 shown in FIGS. 6 to 9 is omitted, and a key portion 25e formed in a convex shape as an engaged portion that engages with the hole 15 is used instead. It is provided integrally with the terminal 25x via 25f. The terminal 25x is formed by punching a thin metal plate or the like, and is attached to a mounting groove 27x formed in the housing 22x from the right side, and a tail portion 25b fixed to a circuit board (not shown) by soldering. A flexible portion 25c extending in the insertion / extraction direction of the flexible substrate 11, a contact portion 25d formed at the distal end of the flexible portion 25c and contacting the conductor 8a of the flexible substrate body 8, and an insertion distal end of the flexible substrate 11 It has a stopper portion 25g to be contacted, the key portion 25e, and the extension portion 25f.

  Also in this NON-ZIF type connector 21x, when the flexible board 11 is inserted into the opening 24 of the housing 22x, the conductor 8a (see FIG. 1) of the board body 8 is the connector as in the connector 21x shown in FIGS. Since the board 11 and the connector 21x are electrically connected to each other by being pressed against the contact part of the terminal 25x of the 21x, the key part 25e of the connector 21x is engaged with the hole 15 of the reinforcing plate 10, so that the flexible board 11 is It is secured from the connector 21x. Here, since the flexible portion 25c is elastically deformed by the insertion of the flexible substrate 11, the upper surface of the reinforcing plate 10 is pressed against the key portion 25e by the repulsive force, and the engagement between the key portion 25e and the hole 15 is maintained. In addition, the same effects as those of the connector 21 shown in FIGS. 6 to 9 can be exhibited.

  Embodiments of the present invention are not limited to the above types.

  In each of the above embodiments, the hole 15 constituting the engaging portion is composed of two holes 15 formed at both end portions in the width direction of the reinforcing plate 10. It may be composed of one or four or more holes, and conversely, it may be composed of only one hole. In these cases, the projections 16, 36, and 25e constituting the engaged portion provided on the connector side are also formed in a predetermined number in a predetermined position at a predetermined position according to the position and number of the holes 15. Is done. It is to be noted that the conductor 8a of the flexible substrate body 8 may be disposed in all or any of the projection planes of the holes, as in the above-described embodiment.

  Further, the engaging portion may be a groove 15x formed through the reinforcing plate 10 along the width direction of the reinforcing plate 10 as shown in FIG. 12 instead of the hole 15, and is reinforced as shown in FIG. Notches 15y formed through the reinforcing plate 10 at both ends in the width direction of the plate 10 may be used. In these cases, the convex portions 16, 36, 25e as the engaged portions provided in the connectors 1, 2, 21x are formed in a predetermined raised shape at a predetermined position in accordance with the shape of the groove 15x or the notch 15y. Is done. Needless to say, the engaging portion including the groove 15x and the notch 15y may be disposed above the conductor 8a of the flexible substrate body 8.

  Further, the engagement portion may be configured by appropriately combining two or more of the hole 15, the groove 15x, and the notch 15y.

It is explanatory drawing of the flexible substrate which concerns on embodiment of this invention, (b) is a top view, (a) is the sectional view on the aa line of (b). It is a perspective view which shows the connector (ZIF type) to which the said flexible substrate is connected (before connection). It is a perspective view which shows a mode when the said flexible substrate is connected to the said connector. It is the IV-IV sectional view taken on the line of FIG. It is the VV sectional view taken on the line of FIG. It is a perspective view which shows another connector (NON-ZIF type) to which the said flexible substrate is connected (before connection). It is a perspective view which shows a mode when the said flexible substrate is inserted in the opening part of the said connector (before disconnection operation after electrical connection). It is the VIII-VIII sectional view taken on the line of FIG. FIG. 9 is a cross-sectional view in which the rotating member is tilted from FIG. 8 to be in a retaining state. It is sectional drawing which shows another connector (NON-ZIF type) to which the said flexible substrate is connected (before connection). It is a sectional side view which shows a mode when the said flexible substrate is connected to the said connector. It is a perspective view which shows the modification of a reinforcement board. It is a perspective view which shows another modification of a reinforcement board. It is a sectional side view which shows the flexible substrate which shows a prior art example, and the connector (ZIF type) to which this board | substrate is connected. It is a perspective view which shows the flexible substrate which shows another prior art example, and the connector to which this board | substrate is connected.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Connector 5 Terminal 8 Flexible board main body 8a Conductor 10 Reinforcement board 11 Flexible board 15 Hole as engaging part 15x Groove as engaging part 15y Notch as engaging part

Claims (2)

A flexible board that is prevented from coming off when connected to a connector,
A flexible board body having a conductor for contacting a terminal provided in the connector; a reinforcing plate laminated on the flexible board body; and an engaging portion formed on the reinforcing board for preventing the removal. Prepared,
The engaging portion includes a hole, a groove, or a notch penetrating the reinforcing plate, a bottom opening thereof is blocked by the surface of the flexible substrate body, and the conductor is disposed in a projection plane of the bottom opening. A flexible substrate characterized by the above. The flexible substrate according to claim 1, wherein the reinforcing plate is laminated at a distal end portion of the flexible substrate main body, and a shape of the distal end portion of the reinforcing plate is matched with a shape of the distal end portion of the flexible substrate main body.

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