JP2013109872A - Connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector that is hard to break by shortening the body length of a handle so that the twisting moment is reduced when a load is applied to the handle of the connector.SOLUTION: A connector 1 includes an insulating body 20 having a fitting part 22 to a mating connector, a plurality of contacts 30 arranged in the body 20 in parallel in a direction orthogonal to the fitting direction of the fitting part 22, and a printed circuit board 70 connecting the contacts 30 with the core wires 120 of a cable 100. The contact fixing part of the body 20 is held between the vertical directions orthogonal to the fitting direction of the fitting part 22 and the parallel direction of the contacts 30, and the printed circuit board 70 is superimposed on the upper surface out of the upper and lower surfaces facing each other. A core wire connection 5 is provided on the upper surface of the printed circuit board 70, and a contact connection 4 is provided on the lower surface.

Description

  The present invention relates to a connector attached to a cable end, and particularly relates to a connection structure between the connector and the cable.

  In this type of connector, generally, a plurality of contacts are inserted and mounted on the insulating body having a fitting portion with a mating connector from the opposite side of the fitting portion, and then the fitting portion is inserted from the contact fixing portion of the body. The cable core wire is directly connected to the terminal portion of the contact protruding to the opposite side by soldering (for example, see FIGS. 6 and 7 of Patent Document 1), or from the contact fixing portion of the body to the fitting portion. The terminal portion of the contact protruding to the opposite side and the printed circuit board are soldered, the cable core wire and the printed circuit board are soldered, and the contact and the cable core wire are connected via the printed circuit board (for example, Patent Document 2). 11 and 12), and then connecting the contact and cable core wires provided between the body fitting portion to the surface of the contact fixing portion, and between the body and the cable sheath. Attach a shell made of a metal plate to cover the periphery of the cable, and then fix the shell by crimping the cable shield wire on the cable sheath, connect the shell and cable shield wire, and connect the connector to the cable end. Assemble the main body, and finally install the connector main body and cable end (including the sheath end) in the injection mold cavity, and inject molten molten synthetic resin from the cable end to the tip of the connector main body Overmolding is performed by wrapping with a molten resin over the base of the fitting portion and solidifying and integrating, and the handle portion of the connector and the cable bush are integrally formed to complete the product (for example, Patent Document 1) 1 and FIG. 2, refer to FIG. 9 and FIG.

JP 2009-9895 A International Publication No. 2009-147771

  However, since the connection between the contact and the cable core wire is provided between the body and the cable sheath, and the connection between the shell and the cable shield wire is on the cable sheath, the body of the connector handle portion is also supported. When the length L (refer to FIG. 4 of the present application) becomes long and a load is applied to the handle portion of the connector at the time of mating with the mating connector, there is a problem that the twisting moment increases due to the long barrel length L.

  Therefore, the present invention has been made in view of the above problems, and its purpose is to shorten the trunk length L of the handle portion so that the twisting moment when a load is applied to the handle portion of the connector is reduced. And providing a connector that is hard to break.

As a first means of the present invention for achieving the above object, an insulating body having a fitting portion with a mating connector and a body in parallel with a direction orthogonal to the fitting direction of the fitting portion. A connector comprising a plurality of arranged contacts, and a printed circuit board for connecting the contacts and a cable core, wherein the contact fixing portion of the body includes a fitting direction of the fitting portion and a parallel direction of the contacts. The printed circuit board is placed on one of the two surfaces facing each other in a direction orthogonal to the surface, and a core wire connecting portion is provided on the surface of the printed substrate, and a contact connecting portion is provided on the back surface. Is.
Further, the second means is obtained by adding the configuration in which the core wire connection part is provided on one end side closer to the fitting part than the contact connection part to the first means.
Further, the third means is the above-mentioned second means, wherein an insulating tape is attached to the surface on the other end side of the printed circuit board, and the contact connecting portion is provided on the back side of the insulating tape, A structure in which a covering portion of the core wire is placed on the surface of the insulating tape is added.
The fourth means is fixed to the third means, the core wire connecting portion is fixed to the exposed portion from the coated portion of the core wire, the pad formed on the one end side surface of the printed circuit board, and these. The contact connecting portion is connected to the contact fixing portion of the body, the terminal portion extending toward the printed circuit board from the fixed portion of the contact; and A configuration is added, which includes a through hole formed on the other end side in conduction with the pad of the printed circuit board, and solder for fixing and electrically connecting them.
Further, the fifth means includes a shell made of a metal plate covering the surface of the body from the fitting portion to the opposite end portion in any one of the first to fourth aspects, and the shell includes the shell A configuration in which the shield wire of the cable is fixed by soldering and electrically connected is added.

According to the first aspect of the present invention, the connection portion between the contact and the cable core wire can be moved from between the conventional body and the sheath of the cable to the peripheral side of the body, and a load is applied to the handle portion of the connector. The trunk length L of the handle portion is shortened so that the time-squeezing moment is reduced, and a connector that is not easily broken can be provided.
Further, according to the second means, the covering portion of the core wire can be placed on the surface of the other end side of the printed board, and the core wire can be protected from the corner portion on the other end side of the printed board.
Further, according to the third means, when solder is used for connection between the core wire and the printed circuit board, it is possible to prevent the core wire and the contact connection portion from being short-circuited due to melting of the coated portion of the core wire during soldering. .
Further, according to the fourth means, the cable core wire and the printed circuit board can be securely fixed and electrically connected with solder, and the contact and the printed circuit board can be securely fixed and electrically connected with solder. Accordingly, the contacts and the core wires of the cables can be reliably electrically connected, that is, connected via the printed circuit board.
Further, according to the fifth means, the connecting portion of the shield wire of the shell and the cable can be moved from the sheath of the conventional cable to the position close to the body, and the trunk length L of the handle portion of the connector can be further shortened.

The disassembled perspective view of the connector main body of the connector which shows embodiment of this invention Side sectional view of the connector main body of the connector showing the embodiment of the present invention The perspective view of the connector main body of the connector which shows embodiment of this invention The perspective view of the connector which shows embodiment of this invention

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 is an exploded perspective view of a connector main body of a connector showing the present embodiment, FIG. 2 is a side sectional view of the connector main body, FIG. 3 is a perspective view of the connector main body, and FIG. 4 is a perspective view of the connector (product). It is.

  As shown in FIGS. 1 to 4, a connector (plug) 1 includes a connector main body (plug main body) 10 assembled at the end of a cable 100 (shielded cable 100 compatible with high-frequency and high-speed transmission), and a connector from the end of the cable 100 to the connector. A handle portion 2 of the connector 1 made of an insulating overmold resin and a cable bush 3 are provided and formed from the base portion of the fitting portion on the distal end side of the main body 10.

  As shown in FIGS. 1 to 3, the connector main body 10 includes a body 20, a plurality of contacts 30, two frames 40, two latches 50, a shell 60, a printed circuit board 70, and an insulating tape 80. It consists of these.

  The body 20 is made of an insulating material such as a synthetic resin, has a rectangular parallelepiped base portion 21 on the rear side, and a fitting portion 22 on the front side. The fitting portion 22 has a rectangular parallelepiped shape that is thinner than the base portion 21 and protrudes forward from the upper portion of the base portion 21. Further, the fitting portion 22 is a portion to be fitted to a mating connector (not shown) such as a receptacle mounted on a substrate edge portion of a small electronic device such as a mobile phone. The upper surface of the base part 21 and the upper surface of the fitting part 22 are arrange | positioned in one plane. A concave portion 23 opened upward and forward is formed in the front end side central portion of the fitting portion. The concave portion 23 is a portion into which a contact portion of a contact included in the mating connector is inserted when the connector 1 and the mating connector are fitted. The body 20 has a plurality of first terminal grooves 24 for mounting the contacts 30, two second terminal grooves (not shown) for mounting the frame 40, and a third terminal groove 25 for mounting the latch 50. The first terminal groove 24 is formed from the rear end of the body 20 to the bottom front end of the recess 23. The first terminal grooves 24 are formed in parallel in the left-right direction of the body 20. The third terminal grooves 25 are formed on the left and right sides of the body 20 from the rear end of the body 20 to a position slightly in front of the front end. The second terminal groove is formed in a bag shape between the outermost first terminal groove 24 and the left and right third terminal grooves 25 from the rear end of the body 20 to a position slightly in front of the recess 23. The first, second, and third terminal grooves 24 and 25 are arranged in parallel in the left-right direction of the body 20. Further, the body 20 has a pedestal portion 26 of the printed circuit board 70 at the center of the rear upper surface of the base portion 21. The pedestal portion 26 supports the central portion of the rear surface (lower surface) of the printed circuit board 70 on the rear end side, and forms a gap corresponding to the plate thickness of the shell 60 described later between the rear surface of the printed circuit board 70 and the upper surface of the base 21. The body 20 also has a slit-like terminal groove 27 that opens the rear end portion of the first terminal groove 24 on the upper surface of the pedestal portion 26.

  The contacts 30 are made of a conductive metal plate, inserted one by one into the first terminal groove 24 from the rear of the body 20, and arranged in parallel to the body 20 in the left-right direction while being accommodated therein. . The contact 30 is press-fitted and fixed to the rear portion of the first terminal groove 24 formed in the base portion 21 of the body 20, and extends forward from the fixed portion 31 and protrudes upward at the front end portion. The spring arm 33 in which the contact portion 32 is formed, and the terminal portion 34 extending perpendicularly from the rear portion of the fixed portion 31 upward. Accordingly, the first terminal groove 24 formed in the base portion 21 of the body 20 is a contact fixing portion of the body 20. The contact portion 32 is disposed in the recess 23 and contacts the contact portion of the contact included in the mating connector when the connector 1 is mated with the mating connector, and the spring arm 33 is pressed when the contact portion 32 is pressed. Bends with the base portion on the fixed portion 31 side as a fulcrum and biases the contact portion 32 with a contact pressure. The upper end portion of the terminal portion 34 projects to the upper surface of the pedestal portion 26 through the terminal groove 27, and constitutes a contact connecting portion 4 described later.

  The latch 50 is made of a conductive metal plate, and is inserted into the third terminal groove 25 one by one from the rear of the body 20, and is disposed on both left and right sides of the body 20 while being accommodated therein. The latch 50 is press-fitted and fixed to the rear portion of the third terminal groove 25 formed in the base portion 21 of the body 20, and extends forward from the upper portion of the fixed portion 51, and faces upward toward the front end portion. A spring arm 53 having an engaging projection 52 projecting therefrom. The engaging protrusion 52 is disposed to protrude from the upper surface of the fitting portion 22 at the front end portion of the third terminal groove 25, and engages with the engaging groove provided in the mating connector when the connector 1 and the mating connector are fitted. This prevents the connector 1 from being inadvertently disconnected from the mating connector.

  The frame 40 is made of a metal plate, and is press-fitted into the second terminal groove one by one from the rear of the body 20, and is resin between the left and right outermost contacts 30 and the left and right latches 50 while being fixedly received therein. It is embed | buried and arrange | positioned in the inside and the body 20 is reinforced.

  The shell 60 is made of a conductive metal plate. By inserting the body 20 into the shell 60 from the rear, the shell 60 is brought into close contact with the peripheral side surface of the fitting portion 22 and the upper surface and both left and right side surfaces of the base portion 21. Cover these. In addition, the shell 60 is formed with a window hole 61 for projecting it upward in a portion corresponding to the engaging protrusion 52 of the latch 50, and it is received and fitted into the portion corresponding to the base portion 26 from the rear. A notch 62 to be joined is formed. Further, the shell 60 is provided with a connection part 63 constituted by a part in which one of the left and right side plates covering the left and right side surfaces of the base part 21 extends rearward from the rear end of the body 20. The shield wire 130 exposed by removing the sheath 110 at the end of the cable 100 is fixed and electrically connected to the connection portion 63 by soldering. Thereby, the shell 60 functions as a shield for the connector 1.

  The printed circuit board 70 is used to connect the plurality of contacts 30 and the plurality of core wires 120 of the cable 100, and fits the contact fixing portion of the body 20 (the first terminal groove 24 formed in the base portion 21 of the body 20). Of the two surfaces (upper and lower surfaces of the base 21 of the body 20) facing each other in a direction (vertical direction) perpendicular to the fitting direction (front-rear direction) of the portion 22 and the parallel direction (left-right direction) of the contacts 30 1 is placed on one surface (in this embodiment, the upper surface of the base portion 21 of the body 20), and the core wire connection portion 5 is provided on the front surface (upper surface) of the printed circuit board 70, and the contact connection portion 4 is provided on the rear surface (lower surface). It is configured as follows.

  Further, the core wire connecting portion 5 is configured to be provided on one end side (front end side) of the printed circuit board 70 closer to the fitting portion 22 than the contact connecting portion 4.

  Further, an insulating tape 80 is attached to the surface (upper surface) of the other end side (rear end side) of the printed circuit board 70, and the contact connecting portion 4 is provided on the rear surface side (lower surface side) of the insulating tape 80. The covering portion 121 of the core wire 120 is placed on the surface (upper surface) of the insulating tape 80.

  The core wire connecting portion 5 is formed in parallel in the left-right direction on the exposed portion 122 (of the conductor) from the covering portion 121 of the core wire 120 and the surface (upper surface) on one end side (front end side) of the printed circuit board 70. A pad (conductor pattern) 71 and solder (not shown) for fixing and electrically connecting them are configured. On the other hand, the contact connection portion 4 is electrically connected to the terminal portion 34 of the contact 30 and the pad 71 of the printed circuit board 70 and is formed in a through hole 72 formed in a staggered arrangement in the left-right direction on the other end side (rear end side). And solder for fixing and electrically connecting them.

  As the printed board 70, a double-sided board or a multilayer board can be used. As the insulating tape 80, a single-sided adhesive tape made of a synthetic resin film having an insulating adhesive layer on one side (lower surface), or a double-sided adhesive tape made of a synthetic resin film having an insulating adhesive layer on both sides (upper and lower surfaces). Can be used. When the double-sided adhesive tape is used, the core wire 120 can be fixed by the covering portion 121 placed thereon by the insulating adhesive layer on the surface (upper surface) of the insulating tape 80, and the core wire to the pad 71 of the printed circuit board 70. The exposed portion 122 of the solder 120 can be easily and reliably soldered. Moreover, as a base material of the insulating tape 80, a polyester film such as polyethylene terephthalate (PET) can be used, and it is more preferable to use a film such as polyimide having excellent heat resistance.

  In the connector main body 10 having the above-described configuration, the connection portion (printed circuit board 70, contact connection portion 4, core wire connection portion 5) of the contact 30 and the core wire 120 of the cable 100 is provided on the peripheral side (upper side) of the body 20. The connection portion 63 of the shell 60 and the shield wire 130 of the cable 100 is provided in the immediate vicinity (immediately after) of the body 20, and the distance between the body 20 and the sheath 110 of the cable 100 is shortened and assembled to the end of the cable 100. Then, the connector body 10 assembled to the end of the cable 100 in this way is mounted in the injection mold cavity together with the end of the cable 100 (including the end of the sheath 110), and melted insulating synthetic resin. 4 is applied to the base portion of the fitting portion 22 on the distal end side of the connector main body 10 from the end of the cable 100, and is overmolded to be solidified and integrated. As shown in FIG. The handle portion 2 and the cable bush 3 are integrally molded to complete the product.

  As described above, in the present embodiment, the insulating body 20 having the fitting portion 22 with the mating connector, and the plurality of contacts arranged in the body 20 in parallel with the direction orthogonal to the fitting direction of the fitting portion 22. 30 and a printed circuit board 70 for connecting the contact 30 and the core wire 120 of the cable 100, the first terminal groove 24 (contact fixing portion of the body 20) formed in the base portion 21 of the body 20. Of the upper and lower surfaces facing each other in the direction (vertical direction) perpendicular to the fitting direction (front-rear direction) of the fitting portion 22 and the parallel direction (left-right direction) of the contacts 30 (one of the two surfaces) The printed circuit board 70 is placed on top of the printed circuit board 70, the core wire connection portion 5 is provided on the upper surface (front surface) of the printed circuit board 70, and the contact connection portion 4 is provided on the lower surface (back surface). In Thus, the connection portion (printed circuit board 70, contact connection portion 4, core wire connection portion 5) of the contact 30 and the core wire 120 of the cable 100 can be moved from between the conventional body and the sheath of the cable to the peripheral side of the body 20, and the connector. The trunk length L of the handle portion 2 can be shortened so that the connector can be prevented from being broken so that the twisting moment when a load is applied to the handle portion 2 is reduced.

  Further, the core wire connecting portion 5 is provided on the front end side (one end side) closer to the fitting portion 22 than the contact connecting portion 4, so that the core wire 120 is formed on the upper surface (front surface) on the rear end side (other end side) of the printed circuit board 70. The covering portion 121 can be placed, and the core wire 120 can be protected from the rear end side corner (the other end side corner) of the printed circuit board 70.

  An insulating tape 80 is attached to the upper surface (front surface) of the rear end side (other end side) of the printed circuit board 70, and the contact connection portion 4 is provided on the lower surface side (back surface side) of the insulating tape 80. When the solder is used for the connection between the core wire 120 and the printed circuit board 70 by the configuration in which the covering portion 121 of the core wire 120 is placed on the upper surface (front surface) of the insulating tape 80, It is possible to prevent the covering portion from melting and the core wire 120 and the contact connecting portion 4 from being short-circuited.

  Further, the core wire connecting portion 5 fixes and electrically exposes the exposed portion 122 of the core wire 120 from the covering portion 121, the pad 71 formed on the upper surface (front surface) of the front end side (one end side) of the printed circuit board 70, and the like. The contact connecting portion 4 is connected to the printed circuit board 70 from the fixed portion 31 of the contact 30 fixed to the first terminal groove 24 (contact fixing portion) formed in the base portion 21 of the body 20. Terminal portion 34 extending toward the end, through hole 72 formed on the rear end side (the other end side) in conduction with pad 71 of printed circuit board 70, and solder for fixing and electrically connecting them. With this configuration, the core wire 120 of the cable 100 and the printed circuit board 70 can be securely fixed and electrically connected with solder, and the contact 30 and the printed circuit board 70 can be securely fixed with solder. Gas to be connected, along with it, the contact 30 and the core wire 120 of the cable 100 through the printed circuit board 70 reliably electrically connected, i.e. connection.

  A shell 60 made of a metal plate is provided to cover the surface of the body 20 from the fitting portion 22 to the rear end portion (opposite end portion), and the shield wire 130 of the cable 100 is fixed to the shell 60 by soldering. The connection part 63 of the shield wire 130 of the shell 60 and the cable 100 can be moved from the sheath of the conventional cable to the position close to the body 20 by the configuration in which the cable 60 is connected, and the trunk length L of the handle part 2 of the connector 1 is further shortened. it can.

DESCRIPTION OF SYMBOLS 1 Connector 2 Handle part 4 Contact connection part 5 Core wire connection part 20 Body 22 Fitting part 30 Contact 31 Fixed part 34 Terminal part 60 Shell 70 Printed circuit board 71 Pad 72 Through hole 80 Insulating tape 100 Cable 120 Core wire 121 Covering part 122 Exposed portion 130 Shielded wire L Handle length

Claims (5)

  An insulating body having a fitting portion with a mating connector, a plurality of contacts arranged in the body in parallel with a direction perpendicular to the fitting direction of the fitting portion, and the core wires of the contacts and the cable And a printed circuit board for connecting the contacts, wherein the contact fixing portion of the body is sandwiched in a direction perpendicular to the fitting direction of the fitting portion and the parallel direction of the contacts, and one of the two surfaces facing each other A connector having the printed circuit board overlaid on the front surface, a core wire connecting portion on the surface of the printed circuit board, and a contact connecting portion on the back surface.   The connector according to claim 1, wherein the core wire connecting portion is provided on one end side closer to the fitting portion than the contact connecting portion.   An insulating tape is attached to the surface on the other end side of the printed circuit board, the contact connecting portion is provided on the back surface side of the insulating tape, and a covering portion of the core wire is provided on the surface of the insulating tape. The connector according to claim 2, which is placed.   The core wire connecting portion is composed of an exposed portion exposed from a covering portion of the core wire, a pad formed on a surface on one end side of the printed circuit board, and solder for fixing and electrically connecting them, and the contact connection The part is formed on the other end side in conduction with the pad of the printed circuit board and the terminal part extended toward the printed circuit board from the fixed part of the contact fixed to the contact fixing part of the body The connector according to claim 3, wherein the connector is constituted by a through hole formed and solder for fixing and electrically connecting them.   5. A shell made of a metal plate that covers the surface of the body from the fitting portion to the contact fixing portion, and the shield wire of the cable is fixed to the shell by soldering and electrically connected thereto. The connector according to any one of 1.

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