JP2013118089A - Cable connector - Google Patents

Abstract

It is possible to quickly and accurately mount on a mounting surface of a wiring board by a component mounting machine, and to easily keep the upper surface of the cover member substantially parallel to the mounting surface of the wiring board when the cover member is unlocked. Like that.
Guide pieces 20PA and 20PB of a locking piece 18RF and 18LF of a cover member 18 are locked to locking claws 20RN1, 20RN4, 20LN1 and 20LN4, respectively, and the locking pieces 18RF, The upper surface portion of the cover member 18 that is substantially parallel to the bottom surface portion of the connector main body 20 by the component mounting machine in a state where the lower end portions of the 18LF are respectively received by the locking claws 20RN2, 20RN3, 20LN2, and 20LN3. The suction end can be held, and the connection end portion of the flexible wiring board 10 can be inserted into the cable housing portion 20A through the cable slot.
[Selection] Figure 1

Description

  The present invention relates to a cable connector including a connector main body having a cable housing portion and a cover member covering the connector main body.

  The cable connector is arranged on a printed wiring board, and for example, an electrical component is connected through a flat cable (FFC) as a cable or a flexible wiring board (hereinafter also referred to as FPC). For example, as shown in Patent Document 1, the cable connector includes an actuator member having a pressing portion to be pressed when the cable is attached to and detached from the cable housing portion of the connector main body portion, and a pressing portion of the actuator member. There has been proposed a connector main body provided with a lock / unlock member that selectively locks the connector main body and a contact terminal disposed in the cable housing. A pair of leg portions formed on both sides of the pressing portion in the actuator member is fixed to the inside of the connector main body portion. The pressing part of the elastically displaceable actuator member is when the cable is not attached to the cable housing part of the connector main body part or when the connection end of the cable is inserted into the cable housing part of the connector main body part. The pressing portion of the actuator member is inclined so as to intersect the bottom surface portion of the connector body portion, that is, the mounting surface of the wiring board, with a predetermined inclination angle so that the opening area of the cable slot of the connector body portion is relatively large. doing.

  The cable connector includes, for example, a cover housing formed in a rectangular shape with a synthetic resin, and a base housing having a plurality of contacts and rotatably supporting the cover housing, as shown in Patent Document 2. Something that has been proposed. The cover housing is rotatably supported by the base housing via a rotation pin formed at the base end portion. The cover housing has a bottom wall as a support member for the front end portion of the contact and an FPC accommodating space for accommodating the front end portion of the FPC. When the FPC is not mounted in the FPC housing space, or when the front end of the FPC is inserted into the FPC housing space, the upper wall of the cover housing is the bottom surface of the base housing, that is, the mounting surface of the wiring board It is inclined at a predetermined angle so as to intersect. The cover housing is locked in the closed state and held in the base housing by engaging the engaging protrusions provided on both sides of the cover housing with the engaging grooves of the base housing.

JP 2008-282718 A JP 2008-198395 A

  When electrical components including cable connectors are surface-mounted on a wiring board mounting surface by a component mounter (chip mounter) or the like, the cable connector is, for example, adsorbed and held on the wiring board by a component mounter. The contact terminals (contacts) as described above are fixed by soldering. In such a case, in order to mount the cable connector quickly and accurately, the cable connector is positioned so that the bottom surface of the cable connector that is sucked and held by the component mounter is substantially parallel to the mounting surface of the wiring board. Needs to be held by the component mounter.

  For example, in the cable connectors shown in Patent Document 1 and Patent Document 2 described above, when the actuator member (Patent Document 1) and the cover housing (Patent Document 2) are sucked and held by the component mounting machine, respectively, After the actuator member (Patent Document 1) and the cover housing (Patent Document 2) are once locked so that the bottom surface of the cable connector is substantially parallel to the mounting surface of the wiring board, The cable connector is mounted on the mounting surface of the wiring board.

  However, when connecting the cable to such a cable connector, the actuator member (Patent Document 1) and the cover housing (Patent Document 2) are unlocked and then again to open the cable housing portion. In this case, there is a problem that a complicated operation for setting the lock state is required.

  In view of the above problems, the present invention is a cable connector that includes a connector body having a cable housing portion and a cover member that covers the connector body. An object of the present invention is to provide a cable connector that is well mounted and that can easily keep the upper surface of the cover member substantially parallel to the mounting surface of the wiring board when the cover member is unlocked.

  In order to achieve the above-described object, a cable connector according to the present invention includes a cable housing portion that removably houses a connection end portion of a cable, and a plurality of cables that electrically connect the connection end portion of the cable to a wiring board. A connector body having a contact terminal; and a cover member made of a conductive material and covering the cable housing portion, and when the cover member takes a first position with respect to the cable housing portion, an upper surface portion of the cover member So that both ends of the cover member are locked by the plurality of first locking claws of the connector body, and the connection end of the cable is connected to the bottom surface of the connector body and the mounting surface of the wiring board. When the cover member is detachable with respect to the cable housing portion, and the cover member is pushed down and close to the cable housing portion to assume the second position, the peripheral edges of the plurality of openings of the cover member are overlapped with the connector body. Locked to the second locking claw, characterized in that the connection end of the cable is electrically connected to the plurality of contact terminals.

  In the cable connector according to the present invention, when the cover member is pushed down and close to the cable housing portion and takes the second position, the peripheral edge of one opening of the cover member is the second second of the connector body. When the cover member is in the non-locked state, one end of the cover member rotates around the other second lock claw of the connector body so as to increase the opening area of the cable slot of the cable housing portion. It may be movable.

  When the cover member is pushed down and close to the cable housing portion and takes the second position, the peripheral edge of the one opening of the cover member is fixed to the one second locking claw of the connector body by a predetermined jig. You may be in the non-locking state.

  When one end of the cover member can be rotated around the other second locking claw of the connector body so as to increase the opening area of the cable slot of the cable housing portion, one end of the cover member is connected to the connector The position may be regulated by the first locking claw of the main body.

  Further, when the cover member is close to the cable housing portion and takes the second position, the cover member is brought into contact with the ground contact pad at the connection end portion of the cable so that the cover member is connected to the connector main body. May be grounded through the conductive second locking claw and the conductor layer of the wiring board.

  According to the cable connector of the present invention, when the cover member takes the first position with respect to the cable housing portion, the upper surface portion of the cover member is substantially parallel to the bottom surface portion of the connector body and the mounting surface of the wiring board. Thus, both ends of the cover member are respectively locked by the plurality of first locking claws of the connector body, and the connection end portion of the cable can be attached to and detached from the cable housing portion. In addition, the upper surface of the cover member can be easily kept substantially parallel to the mounting surface of the wiring board while the cover member is unlocked.

It is a perspective view showing an example of a cable connector concerning the present invention with a connection end part of a cable. In the example shown by FIG. 1, it is a perspective view which shows the state in which the connection edge part of the cable was connected to the connector for cables. It is a perspective view which shows the connector main body in the example shown by FIG. It is a perspective view with which it uses for description of the jig | tool used in the example shown by FIG. (A) And (B) is a perspective view with which it uses for description of attachment or detachment of the cable in the example shown by FIG. 1, respectively.

  FIG. 1 shows an overall configuration of an example of a cable connector according to the present invention.

  In FIG. 1, the cable connector is mounted on the mounting surface of the wiring board PB (see FIG. 4) and connected to one connection end of the flexible wiring board 10 described later. For example, the other connection end of the flexible wiring board 10 is connected to a cable connector mounted on a wiring board (not shown) constituting a part of the antenna unit.

  The flexible wiring board 10 as a cable includes, for example, an insulating base material 10M having a surface layer portion 10H on which a plurality of conductive layers covered with a protective layer are formed as shown in FIG. And the shield plate 10SHP disposed on the other surface layer portion 10B of the insulating base material 10M facing the surface layer portion 10H. Since both end portions of the flexible wiring board 10 have the same structure, only one connection end portion will be described, and description of the other end portion will be omitted.

  The insulating substrate 10M is formed of, for example, liquid crystal polyester (LCP), glass epoxy resin, polyimide (PI), polyethylene terephthalate (PET), or polyetherimide (PEI) having a predetermined thickness. The protective layer is formed of, for example, a thermosetting resist layer or a polyimide film.

  In the surface layer portion 10H and the surface layer portion 10B at one end portion, a step portion 10E is formed at the end of the enlarged portion as the connection end portion. When the flexible wiring board 10 is connected to the cable connector 16, the stepped portion 10 </ b> E is locked to a pair of projecting pieces 18 ga and 18 gb of the cover member 18 described later. Further, a contact pad (not shown) connected to the signal line conductor pattern is formed at the center of the enlarged portion of the surface layer portion 10H covered with a predetermined protective layer. On both sides of the contact pad, two contact pads (not shown) connected to the ground line conductor pattern are formed at predetermined intervals. The two contact pads and the center contact pad are formed substantially parallel to each other. The length in the longitudinal direction of the central contact pad is set smaller than the length in the longitudinal direction of the two contact pads.

  The shield plate 10SHP in the surface layer portion 10B is covered with a protective layer. A pair of contact pads 10Sa conducting to the shield plate 10SHP are formed substantially parallel to each other at a predetermined interval in an enlarged portion of the shield plate 10SHP covering the protective layer of the insulating base material 10M. The shield plate 10SHP is through-connected or interlayer connected to the above-described two contact pads via a pair of contact pads 10Sa and a plated through hole in the insulating base material 10M. In the interlayer connection, vias (vias) or bumps may be used.

  The cable connector 16 includes a connector body 20 that is soldered and fixed onto the wiring board PB (see FIG. 3), and is arranged so as to cover the connector body 20 and an enlarged portion of the flexible wiring board 10 is directed to a contact terminal 22ai to be described later. And a cover member 18 to be pressed.

  The cable connector 16 has a cable slot at one end through which the connection end of the flexible wiring board 10 passes. The cable slot is formed between the inner peripheral surface of the cover member 18 and the front wall 20 FW of the connector main body 20.

  The cover member 18 is formed by press working with a thin metal material having good conductivity, for example. In FIG. 1, the cover member 18 has an engagement piece portion 18RF and an engagement piece portion 18LF on the X coordinate axis in the orthogonal coordinate system, that is, on both side walls formed along the attachment / detachment direction of the flexible wiring board 10. have. A pair of protrusion pieces 18ga and 18gb protruding toward the connector main body 20 and a bent portion 18gc are formed on each end surface along the Y coordinate axis of the cover member 18.

  Since the locking piece portion 18RF and the locking piece portion 18LF have the same structure, the locking piece portion 18RF will be described, and the description of the locking piece portion 18LF will be omitted.

  As shown in FIG. 2, the locking piece portion 18RF includes a rectangular first opening 18H1 into which a locking claw 20RN2 of the connector body 20 described later is inserted and a rectangular shape into which a locking claw 20RN3 described later is inserted. The second opening 18H2. The first opening 18H1 and the second opening 18H2 are formed on a common straight line and separated by a predetermined distance.

  Guide pieces 20PA and 20PB are formed on a common straight line at the periphery of the notches 20KA and 20KB at both ends of the locking piece 18RF. The guide pieces 20PA and 20PB guide and support the protruding pieces 30PA and 30PB provided on the legs 30LA and 30LB of the predetermined jig 30 as shown in FIG.

  As shown in FIG. 4, the protruding pieces 30PA and 30PB of the jig 30 are inserted into respective recesses of the connector body 20 described later along the direction indicated by the arrow PU, and the locking pieces 18RF and 18LF of the cover member 18 are inserted. The guide piece 20PA is used to spread one side of the cover member 18 from the connector main body 20 and to spread the guide piece 20PA laterally at the same time against its elasticity.

  Further, as shown in FIG. 5A, the guide piece 20PA is locked to the locking claw 20RN1 when the cover member 18 is rotated around the locking claws 20RN3 and 20LN3.

  Further, as shown in FIG. 1, when the cover member 18 is pushed down to a first position described later, the lower end of the locking piece portion 18RF is received by the locking claws 20RN2 and 20RN3 and the guide piece 20PA is engaged. The guide piece 20PB is locked to the locking claw 20RN1, and the guide piece 20PB is locked to the locking claw 20RN4. As shown in FIG. 2, when the cover member 18 is further pushed down to the lowermost position, which is the second position, the locking claws 20RN2 and 20RN3 have the first opening 18H1 and the second opening 18H2, respectively. It is latched by the lower end of the periphery of the.

  Four depressions 18d are formed on the upper surface portion of the cover member 18 with a predetermined interval. The distance between the centers of the two depressions 18 d along the Y coordinate axis in FIG. 1 in the cover member 18 matches the distance between the centers of the pair of contact pads 10 Sa of the flexible wiring board 10 described above. A portion corresponding to each recess 18 d on the inner peripheral surface of the cover member 18 partially forms a raised portion so as to contact the contact pad 10 Sa and guide the flexible wiring board 10.

  A through hole 18a is formed in the upper surface portion adjacent to each notch portion 20KB. When the cover member 18 takes the above-described second position, the upper ends of posts 20RPB and 20LPB, which will be described later, are inserted into the through holes 18a as shown in FIG.

  The distance between the pair of projecting pieces 18ga and 18gb serving as the locking portions formed integrally with the cover member 18 is the same as the distance between the step portions 10E of the flexible wiring board 10. When the cover member 18 is pushed down to the lowermost position, the tips of the pair of protruding pieces 18ga and 18gb are fitted into the recesses 20GA and 20GB (see FIG. 3) of the connector main body 20 as shown in FIG. The At that time, the bent portion 18gc formed integrally with the cover member 18 is inserted between the locking claw 20RN4 and the locking claw 20LN4 of the connector body 20.

  As shown in an enlarged view in FIG. 3, the connector main body 20 is formed of, for example, a resin material and has a cable housing portion 20A at the center. The cable housing portion 20A is surrounded by side walls 20RW and 20LW that are formed in substantially parallel to each other at a predetermined interval, and a connecting wall 20BW that connects one end of the side wall 20RW and one end of the side wall 20LW, and the upper side is It is formed by being covered with a cover member 18. In the flat portion of the front wall 20FW that forms the lower part of the above-described cable slot in the connector main body 20, recesses 20GA and 20GB into which the pair of protruding pieces 18ga and 18gb are respectively fitted are formed.

  Locking claws 20RN1 and 20RN4 and locking claws 20LN1 and 20LN4 are integrally formed at upper ends of both ends of the side walls 20RW and 20LW, respectively.

  Further, posts 20RPB and 20LPB are formed at the portions where the side walls 20RW and 20LW intersect with the connecting wall 20BW, respectively.

  Side wall 20RW has a recess at a position directly below locking claw 20RN1. A metal locking claw 20RN2 formed on the side wall 20RW is formed at a position adjacent to the locking claw 20RN1 at a position spaced apart from the locking claw 20RN1 and adjacent to the right side of the recess by a predetermined distance. The locking claw 20RN2 has a soldering fixed terminal portion 20RNt2 that protrudes outward from the front wall 20FW. The width of the locking claw 20RN2 is set smaller than the width of the locking claw 20RN1. Thus, the locking claw 20RN1 and the locking claw 20RN2 are formed such that the front end of the locking claw 20RN1 and the front end of the locking claw 20RN2 are parallel to each other in two steps.

  The side wall 20RW is a lower position separated from the locking claw 20RN4, and a metal locking claw 20RN3 formed on the side wall 20RW is formed at a position adjacent to the locking claw 20RN2 by a predetermined distance. Yes. The locking claw 20RN3 has a soldering fixed terminal portion 20RNt3 that protrudes to the outside from the connecting wall 20BW. The width of the locking claw 20RN3 is set smaller than the width of the locking claw 20RN4. Thus, the locking claw 20RN3 and the locking claw 20RN4 are formed such that the front end of the locking claw 20RN3 and the front end of the locking claw 20RN4 are parallel to each other in two steps.

  At that time, the tip of the locking claw 20RN1 and the tip of the locking claw 20RN4 are on a common plane, and the tip of the locking claw 20RN2 and the tip of the locking claw 20RN3 are on a common plane. The metal locking claws 20RN2 and the locking claws 20RN3 are insert-molded with the connector main body 20, for example.

  On the other hand, the side wall 20LW has a recess at a position directly below the locking claw 20LN1. Between the locking claws 20LN1 and 20LN4 on the side wall 20LW, corresponding locking claws 20LN2 and 20LN3 (not shown) are formed on the locking claws 20RN2 and 20RN3, respectively. The locking claw 20LN2 has a fixed terminal portion 20LNt2 that protrudes outward from the front wall 20FW. The locking claw 20LN3 has a fixed terminal portion 20LNt3 that protrudes outward from the connecting wall 20BW.

  In the cable housing portion 20A, a plurality of contact terminals 22ai (i = 1 to 3) are arranged in parallel with each other at a predetermined interval along the Y coordinate axis in FIG. The contact terminal 22ai is integrated with the connector body 20 by, for example, insert molding. The contact terminal 22ai includes a movable portion 22m having a curved contact portion 22c at the tip and a fixed portion having a fixed terminal portion 22f (see FIG. 4) fixed to the wiring board PB by soldering.

  When the connection end portion of the flexible wiring board 10 is inserted into the cable housing portion 20A, the contact portions 22c of the two contact terminals 22ai at both ends of the three are in contact with the above-described two contact pads, respectively. The Further, the contact portions 22c of the remaining contact terminals 22ai arranged at the center are in contact with the center contact pads. The fixed terminal portion 22f protrudes outward from the connecting wall 20BW. Thus, the fixed terminal portions 22f of the contact terminals 22ai at both ends are connected to the ground line conductor pattern of the substrate, and the contact terminals 22ai arranged in the center are connected to the signal line conductor pattern. At that time, the two contact pads are electrically connected to the cover member 18 through a pair of contact pads 10Sa in contact with the raised portions corresponding to the depressions 18d of the cover member 18 and the plated through holes in the insulating base material 10M. It is connected to the. In such a case, the signal line connected to the contact pad at the connection end of the flexible wiring board 10 is shielded against the disturbing radio wave by the ground line on both sides and the cover member 18, that is, EMI shielded. Become. Further, when the peripheral edges of the first opening 18H1 and the second opening 18H2 on both side surfaces of the metal cover member 18 are locked to the locking claws 20RN2 and 20RN3, and the locking claws 20LN2 and 20LN3, they are fixed. The terminal portion 20RNt2, the fixed terminal portion 20RNt3, the fixed terminal portion 20LNt2, and the fixed terminal portion 20LNt3 may be configured to be soldered and fixed to the ground line conductor pattern of the wiring board PB, respectively. As a result, the cover member 18 is firmly connected to the ground line conductor pattern of the substrate, and the EMI shield becomes more stable.

  In such a configuration, when the fixing terminal portion 22f of the contact terminal 22ai of the cable connector 16 is soldered and fixed to the mounting surface of the wiring board PB, first, as shown in FIG. With the member 18 attached to the connector main body 20 in the first position, for example, the upper surface portion of the cover member 18 is sucked and held by the component mounting machine. The first position means that the locking pieces 18RF and 18PB of the cover member 18 are locked to the locking claws 20RN1, 20RN4, 20LN1, and 20LN4, respectively. The states where the lower end portions of the portions 18RF and 18LF are received by the locking claws 20RN2, 20RN3, 20LN2, and 20LN3, respectively. At this time, the connection end portion (enlarged portion) of the flexible wiring board 10 can be inserted into the cable housing portion 20A through the cable slot without interfering with the pair of protruding pieces 18ga and 18gb. Thereby, when the upper surface portion of the cover member 18 is sucked and held by the component mounting machine, the upper surface portion of the cover member 18 sucked and held can be easily disposed substantially parallel to the mounting surface of the wiring board PB. It is said.

  Next, after the fixed terminal portion 22f of the contact terminal 22ai of the cable connector 16 is soldered and fixed to the mounting surface of the wiring board PB, the contact pad 10Sa of the flexible wiring board 10 is covered as shown in FIG. The connection end (enlarged portion) of the flexible wiring board 10 is placed on the cable housing portion 20 </ b> A through the cable slot while facing the inner peripheral surface of the member 18.

  Subsequently, as shown in FIG. 2, the cover member 18 is pushed down to the second position in a state parallel to the connector main body 20. In the second position, the locking piece 18RF of the cover member 18 and the peripheral edges of the openings 18H1 and 18H2 of the 18LF are locked to the locking claws 20RN2, 20RN3, 20LN2, and 20LN3, respectively. State. At that time, the stepped portion 10E of the flexible wiring board 10 is positioned and restrained by the cable housing portion 20A so as to be locked by the protruding pieces 18ga and 18gb. As a result, the connection end of the flexible wiring board 10 is connected to the cable connector 16. Further, the locking piece 18RF of the cover member 18 and the peripheral edges of the openings 18H1 and 18H2 of the 18LF are locked to the locking claws 20RN2, 20RN3, 20LN2, and 20LN3, respectively. Even if the cover member 18 is pulled around, the cover member 18 is not easily detached. Therefore, there is no possibility that the flexible wiring board 10 is pulled out.

  On the other hand, when the connection end of the flexible wiring board 10 is removed from the cable connector 16 mounted on the wiring board PB for some reason, the jig 30 shown in FIG. 4 is used for the cable connector 16. After the projecting pieces 30PA and 30PB of the jig 30 have the locking piece portions 18RF and 18LF of the cover member 18 and the guide pieces 20PA of the 18LF are pushed toward the sides almost simultaneously against the elasticity, FIG. ), When the cover member 18 is rotated by a predetermined angle in the direction indicated by the arrow R around the locking claws 20RN3 and 20LN3, the guide piece 20PA is locked to the locking claws 20RN1 and 20LN1. It will be. As a result, the connection end of the flexible wiring board 10 is not pressed by the inner peripheral surface of the cover member 18, and the opening area of the cable slot increases, so that the connection end can be easily pulled out from the cable connector 16. Is done. At this time, there is no possibility that the cover member 18 and the connector body 20 are easily separated.

  When the connection end portion of the flexible wiring board 10 is connected to the cable connector 16 again, the connection of the flexible wiring board 10 is performed with the contact pads 10Sa of the flexible wiring board 10 facing the inner peripheral surface of the cover member 18. The end portion (enlarged portion) is placed on the cable housing portion 20A through the cable slot, and as shown in FIG. 5B, the cover member 18 has a direction indicated by an arrow R centering on the locking claws 20RN3 and 20LN3. Is operated to rotate in the opposite direction by a predetermined angle. As a result, the cover member 18 is held in the second position with respect to the connector main body 20.

DESCRIPTION OF SYMBOLS 10 Flexible wiring board 16 Cable connector 18 Cover member 18H1 1st opening part 18H2 2nd opening part 20 Connector main body 20RN1, 20RN2, 20RN3, 20RN4 Locking claw 20LN1, 20LN2, 20LN3, 20LN4 Locking claw 22ai Contact terminal

Claims (5)

A connector main body having a cable housing portion that detachably accommodates the connection end portion of the cable, and a plurality of contact terminals that electrically connect the connection end portion of the cable to the wiring board;
A cover member made of a conductive material and covering the cable housing portion,
When the cover member is in the first position with respect to the cable housing portion, the cover member is arranged so that the upper surface portion of the cover member is substantially parallel to the bottom surface portion of the connector body and the mounting surface of the wiring board. Both ends of the member are respectively locked by the plurality of first locking claws of the connector main body, and the connection end of the cable is detachable from the cable housing portion,
When the cover member is pushed down toward and close to the cable housing portion and takes the second position, the peripheral edges of the plurality of openings of the cover member are locked to the plurality of second locking claws of the connector body, A cable connector, wherein a connection end of the cable is electrically connected to the plurality of contact terminals.   When the cover member is pushed down toward and close to the cable housing portion and assumes the second position, the peripheral edge of the one opening of the cover member is not engaged with the second locking claw of the connector body. When in the stopped state, one end of the cover member is rotatable around the other second locking claw of the connector body so as to increase the opening area of the cable slot of the cable housing portion. The cable connector according to claim 1.   When the cover member is pushed down toward and close to the cable housing portion and takes the second position, the peripheral edge of the one opening of the cover member is fixed to one second engagement of the connector body by a predetermined jig. The cable connector according to claim 2, wherein the cable connector is in a non-locking state with respect to the pawl.   When one end of the cover member is rotatable around the other second locking claw of the connector body so as to increase the opening area of the cable slot of the cable housing portion, The cable connector according to claim 2, wherein the position of one end is regulated by the first locking claw of the connector main body.   When the cover member is close to the cable housing portion and takes the second position, the cover member is brought into contact with the ground contact pad at the connection end portion of the cable, whereby the cover member 2. The cable connector according to claim 1, wherein the connector is grounded through a conductive second locking claw and a conductor layer of the wiring board in the connector main body.

Images