JP2014212031A - Connector, member for connector and manufacturing method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent damage or wear of an insulating plate-like portion effectively, by disposing a metal member so as to cover the front edge of an insulating plate-like member where a terminal member is disposed on at least one side, while facilitating manufacture, reducing the cost by simple configuration, and enhancing reliability.SOLUTION: In a connector having a tongue 21 including a terminal member 61, the tongue 21 includes a plate-like member 22 composed of an insulating material where the terminal member 61 is disposed on at least one side, and a metal member 71 covering the edge at the front end 22f of the plate-like member 22, and consisting of a wire.

Description

  The present invention relates to a connector, a connector member, and a manufacturing method thereof.

  Conventionally, in order to connect a wire such as a cable to a circuit board such as a printed circuit board, a receptacle connector that fits (plugs) with a plug connector connected to the end of the wire is used. A shield case made of a plate member is attached to the main body, and a tongue that contacts the terminal of the plug connector is accommodated in the shield case (see, for example, Patent Document 1).

  FIG. 8 is an exploded view of a conventional connector.

  In the figure, reference numeral 811 denotes a resin housing of the receptacle connector, and a main body portion 812, a tongue portion 822 that protrudes from the front surface of the main body portion 812 and holds a plurality of terminals 861, and a rear end of the main body portion 812. And a mounting portion 815 extending in the vertical direction connected to both sides. The housing 811 including the main body portion 812, the tongue portion 822, and the attachment portion 815 is integrally formed. A plurality of grooves 822 a extending in the front-rear direction are formed on the lower surface of the tongue 822.

  Each terminal 861 is a member integrally formed by punching or bending a metal plate, and a held portion 862 that is housed and held in a housing 811, and the held portion A tail portion 863 extending rearward from the rear end of the portion 862, a contact portion 864 extending forward from the front end of the held portion 862, accommodated in the groove 822a, and exposed on the lower surface of the tongue 822; Have

  Reference numeral 871 denotes a shield case that surrounds at least the tongue 822, and is formed into a rectangular tube shape by further bending a single metal plate formed into a predetermined developed shape by punching. Is. The shield case 871 is attached to the housing 811 by an attachment portion 872 formed at the rear end.

  Reference numeral 891 denotes a circuit board to which a receptacle connector is connected, and a connector housing recess 892 for housing the receptacle connector is formed at the front end. In the connector housing recess 892, a connection projection 894 where a plurality of connection pads 893 are exposed on the top surface is housed. Further, attachment concave portions 895 are formed on both sides of the connection convex portion 894.

  The receptacle connector is connected to the circuit board 891 with the terminal 861 and the shield case 871 attached to the housing 811. In this case, the lower end of the mounting portion 815 of the housing 811 is inserted into the mounting recess 895 of the circuit board 891 and fixed. Further, each tail portion 863 of the terminal 861 protruding rearward of the main body portion 812 of the housing 811 is connected to the corresponding connection pad 893 of the circuit board 891 by connection means such as soldering.

  Further, the tip of the plug connector (not shown) is inserted from the opening 873 of the shield case 871 and fits with the tongue 822 of the receptacle connector. Then, each of the terminals of the plug connector (not shown) is brought into contact with the contact portion 864 of the corresponding terminal 861 exposed on the lower surface of the tongue portion 822 to be conducted.

JP 2009-076454 A

  However, in the conventional connector, since the tongue portion 822 is made of resin, when the mating and unmating with the tip of the plug connector as the mating connector are repeated, that is, the receptacle connector and the plug connector are inserted and removed. If it is repeated, the leading edge of the tongue 822 may be damaged or worn.

  The present invention solves the problems of the conventional connector, and by disposing a metal member so as to cover a front end edge of an insulating plate member having a terminal member disposed on at least one surface, A connector, a connector member, and a method for manufacturing the same, which can effectively prevent damage and abrasion of the plate-shaped portion of the metal plate, are easy to manufacture, have a simple configuration, are low in cost, and have high reliability. With the goal.

  Therefore, in the connector of the present invention, the connector includes a tongue portion including a terminal member, and the tongue portion includes a plate-like member made of an insulating material having the terminal member disposed on at least one surface thereof, It is a metal member which covers the edge of the front-end part of a plate-shaped member, Comprising: The metal member consisting of a wire is provided.

  In another connector of the present invention, the plate-like member further has a substantially rectangular shape in plan view, and the metal member is a member formed by bending a wire, In plan view, it has a substantially U-shaped shape and covers at least the front edge of the plate-like member and the edge of the side edge near the front edge.

  In still another connector according to the present invention, the metal member further includes a surface exposed to the surface without facing an edge of the plate-shaped member, and the surfaces include an upper surface portion and a lower surface of the plate-shaped member. An upper surface and a lower surface parallel to the portion; an outer surface extending in a direction perpendicular to the upper surface and the lower surface; and a curved surface connecting the upper and lower ends of the outer surface and the upper surface and the lower surface; Is integrated with the metal member.

  In still another connector according to the present invention, the metal member further includes a substantially rectangular cross-sectional shape, and is a streak portion formed on an inner surface facing the edge of the plate-like member, the wire rod A streak extending in the longitudinal direction of the.

  In still another connector of the present invention, the metal member has a vertically long cross-sectional shape, and the streak portion is a concave groove recessed toward the outer surface.

  In still another connector of the present invention, the surface roughness value of the surface exposed to the surface of the metal member is more than the surface roughness value of the inner surface facing the edge of the plate member. Is also small.

  In still another connector of the present invention, the plate member is a member formed by filling an insulating material into a cavity of a pair of molds closed with a mold, and the metal member Is placed in the cavity and integrated with the plate member.

  The connector member of the present invention is a connector member used for a connector having a tongue portion including a terminal member, the connector member being a metal member made of a wire, and the tongue portion is at least on one surface. A plate-like member made of an insulating material provided with the terminal member is provided, and the metal member covers an edge of a front end portion of the plate-like member.

  The method for manufacturing a connector member according to the present invention is a method for manufacturing a connector member used in a connector having a tongue portion including a terminal member, wherein the connector member is a metal member made of a wire. The portion includes a plate-like member made of an insulating material having the terminal member disposed on at least one surface, and the metal member is a member that covers an edge of the front end portion of the plate-like member, and is made of metal. A roll forming step of forming a processed material having a substantially rectangular cross-sectional shape by roll forming a linear material, and a cutting step of cutting the processed material into a processed material of a predetermined length And a bending step of obtaining a metal member having a substantially U-shaped shape in plan view by bending the processed material having the predetermined length. It is concrete.

  According to the present invention, in the connector, the metal member is disposed so as to cover the front end edge of the insulating plate-like member in which the terminal member is disposed on at least one surface. As a result, it is possible to effectively prevent damage and abrasion of the insulating plate-like portion, and to improve reliability while being easy to manufacture, having a simple configuration and reducing costs. Can do.

It is a perspective view which shows the tongue part of the connector in embodiment of this invention. It is a figure which shows the connector in embodiment of this invention, Comprising: (a) is a top view, (b) is a perspective view. It is a three-plane figure which shows the tongue part of the connector in embodiment of this invention, (a) is a top view, (b) is a front view, (c) is a bottom view. It is sectional drawing which shows the tongue part of the connector in embodiment of this invention, Comprising: (a) is BB arrow sectional drawing in Fig.3 (a), (b) is CC in FIG.3 (b). It is arrow sectional drawing. It is a perspective view which shows the metal member of the connector in embodiment of this invention. It is a four-plane figure which shows the metallic member of the connector in embodiment of this invention, (a) is a front view, (b) is a side view, (c) is a bottom view, (d) is sectional drawing (c) It is a DD arrow sectional view in). It is a schematic diagram which shows the manufacturing method of the metallic member of the connector in embodiment of this invention, Comprising: (a)-(d) is a figure which shows each process of the manufacturing method of a metallic member. It is an exploded view of the conventional connector.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 2 is a view showing a connector according to the embodiment of the present invention. In the figure, (a) is a top view and (b) is a perspective view.

  In the figure, reference numeral 1 denotes a connector according to the present embodiment, which includes a housing 11 integrally formed of an insulating material such as synthetic resin or ceramics, and a plurality of terminal members 61 made of conductive metal. The connector is mounted on a mounting member (not shown), and is electrically connected to a counterpart connector (not shown). The connector 1 has a tongue portion 21 that extends forward from the front surface portion 12 f of the main body portion 12 of the housing 11. The tongue portion 21 is single in the example shown in the figure, but may be plural. That is, two or more tongue portions 21 may extend forward from the front surface portion 12f.

  The connector 1 may be used for any purpose. For example, the connector 1 includes a shield case like the conventional connector described in the “Background Art” section, and a USB (Universal Serial Bus) cable or the like. It may be used for connecting a cable conforming to HDMI (R) (High-Definition Multimedia Interface), may not be equipped with a shield case, or may be a direct current as in a power line. May be used for transmission of high frequency signals of 10 [GHz] or more.

  The mounting member may be, for example, a printed circuit board, a flexible flat cable (FFC), a flexible cable used in electronic devices such as a television, a video recorder, a DVD recorder, a mobile phone, a mobile communication terminal, and a computer. Although it is a board such as a circuit board (FPC: Flexible Printed Circuit), it is not necessarily limited to the board, and may be a cable or any kind of board. Here, the description will be made assuming that the substrate is a substrate.

  Furthermore, the connector 1 may be mounted in any posture on a substrate as a mounting member. For example, the upper surface portion 12a or the lower surface portion 12b of the main body portion 12 of the housing 11 faces the surface of the substrate, and the extending direction of the tongue portion 21, that is, the mating direction of the mating connector is parallel to the surface of the substrate. It may be mounted in a posture and used as a so-called right angle type connector. Further, for example, the rear surface portion 12r of the main body portion 12 of the housing 11 faces the surface of the board, and the mating connector is mounted in such a posture that the fitting direction is perpendicular to the surface of the board, and used as a so-called straight type connector. Also good. Further, for example, like the conventional connector described in the section of “Background Art”, the rear surface portion 12r of the main body portion 12 of the housing 11 is mounted in a posture facing the end portion of the substrate, that is, the edge, so-called It may be used as an edge type connector.

  In the present embodiment, the expressions indicating directions such as upper, lower, left, right, front, rear, etc. used for explaining the configuration and operation of each part included in the connector 1 and the connector 1 are absolute. It is not a thing but a relative thing, and it is suitable when the connector 1 and each part included in the connector 1 have the posture shown in the figure, but the posture of the connector 1 and each part included in the connector 1 has changed. In some cases, it should be interpreted according to the change in posture.

  The tongue portion 21 is a substantially rectangular flat plate-like portion, and a terminal member 61 is disposed on at least one surface. In the example shown in the figure, the tongue portion 21 is formed of a plate-like member 22 formed integrally with the main body portion 12 of the housing 11 by an insulating material such as synthetic resin or ceramics, and an upper surface of the plate-like member 22. A plurality of terminal members 61 arranged and a metal member 71 arranged so as to cover the peripheral edge of the plate-like member 22 are included. The plate-like member 22 may be formed separately from the main body 12 of the housing 11. In this case, for example, using a printed wiring board or the like, the plate member 22 is connected to the front surface portion 12f of the main body portion 12 by connection means such as adhesion, fitting, and screwing.

  When the insulating material is a synthetic resin, the plate-like member 22 is formed so as to be integrated with the terminal member 61 and the metal member 71 by a forming method called so-called overmolding or insert molding. . Specifically, with the pair of molds used for resin molding being opened, the terminal member 61 and the metal member 71 are placed at appropriate positions in the cavity formed on the mold surface, and then the mold is mounted. The plate-like member 22 integrated with the terminal member 61 and the metal member 71 can be obtained by closing the mold and filling the melted synthetic resin into the closed cavity.

  Further, even when the insulating material is ceramic, the plate-like member 22 is molded so as to be integrated with the terminal member 61 and the metal member 71. Specifically, in a state where a pair of molds used for molding is opened, the terminal member 61 and the metal member 71 are placed at appropriate positions in the cavity formed on the mold surface, and then the mold is molded. The closed cavity is filled with the slurry produced by mixing the raw ceramic powder and the binder, and heated while being pressurized, so that the terminal member 61 and the metal member 71 and the ceramic are integrated together. By firing, the plate-like member 22 integrated with the terminal member 61 and the metal member 71 can be obtained.

  In the example shown in the figure, the terminal member 61 is embedded in the main body portion 12 and held by the main body portion 12, and extends forward from the front end of the held portion, and the plate-like member 22. A contact portion 64 exposed on the upper surface of the main body 12 and a tail portion 63 extending rearward from the rear end of the held portion and exposed rearward of the rear surface portion 12r of the main body portion 12. The contact portion 64 is a portion that comes into contact with a counterpart terminal included in the counterpart connector when the connector 1 is fitted to a counterpart connector (not shown). The tail portion 63 is a portion connected to a conductive pad formed on the surface of the substrate as a mounting member by a connecting means such as soldering.

  In the example shown in the figure, the metal member 71 covers the entire peripheral edge of the plate-like member 22, and a part of the metal member 71 is embedded and held in the main body portion 12, and the rear end thereof is the exposed portion 71 r. The main body 12 is exposed behind the rear surface portion 12r. In the metal member 71, the exposed portion 71r at the rear end can be omitted as appropriate, the portion embedded in the main body portion 12 can be omitted as appropriate, and the peripheral edge of the plate-like member 22 can be omitted. In FIG. 2, a portion close to the main body portion 12, for example, a portion closer to the main body portion 12 than the line AA shown in FIG. Further, when a conductive metal is used for the metal member 71, the entire metal member 71 is made a part of the ground line by conducting an arbitrary portion to a ground line (not shown) provided in the substrate or the like. You can also

  Next, the tongue portion 21 will be described in detail. Here, only the portion of the tongue portion 21 ahead of the line AA shown in FIG. 2A will be described.

  1 is a perspective view showing a tongue portion of a connector according to an embodiment of the present invention, FIG. 3 is a three-view diagram showing a tongue portion of the connector according to an embodiment of the present invention, and FIG. 4 is a view of the connector according to the embodiment of the present invention. It is sectional drawing which shows a tongue part. 3A is a top view, FIG. 3B is a front view, FIG. 4C is a bottom view, and FIG. 4A is a cross-sectional view taken along the line BB in FIG. FIG. 3B is a cross-sectional view taken along the line CC in FIG.

  In the example shown in the figure, the plate-like member 22 is a plate-like member having a substantially rectangular planar shape, and contact portions 64 of a plurality of terminal members 61 are arranged side by side on the upper surface portion 22a. . Specifically, the contact portion 64 is integrated with the plate member 22 such that at least the upper surface portion 64 a is exposed and the lower portion is buried in the plate member 22. In addition, although the contact part 64 of the terminal member 61 is not arrange | positioned in the lower surface part 22b, the contact part 64 of the terminal member 61 is arrange | positioned also in the lower surface part 22b as needed like the upper surface part 22a. can do.

  The tongue portion 21 in the present embodiment may be any member in which the terminal member 61 is disposed on at least one surface of the plate-like member 22, and the contact portion 64 of the terminal member 61 is provided on both the upper surface portion 22a and the lower surface portion 22b. Even if it is provided, the contact portion 64 of the terminal member 61 may be provided only on the lower surface portion 22b, but here, as shown in the figure, only on the upper surface portion 22a. The thing in which the contact part 64 of the terminal member 61 was arrange | positioned is demonstrated.

  The peripheral edge of the plate-like member 22 is covered with a metal member 71. As shown in FIG. 4, the metal member 71 is a member formed by bending a wire having a substantially rectangular cross-sectional shape, and as shown in FIG. 3, the substantially U-shaped planar shape. It is a member provided with. The front end portion 22 f of the plate-like member 22 and the end edges of the pair of left and right side end portions 22 s are covered with the metal member 71.

  The side end portion 22s extends linearly in the front-rear direction substantially parallel to the contact portion 64 of the terminal member 61, and the front end portion 22f is straight in a direction substantially orthogonal to the contact portion 64 of the terminal member 61. Extended. Further, when viewed in detail, a connecting portion between both ends of the front end portion 22f and the front ends of the left and right side end portions 22s is a curved portion 22c having a substantially arcuate planar shape.

  In the tongue portion 21 in the present embodiment, the metal member 71 is an end of at least the front end portion 22f of the plate-like member 22 and the front end portion of the side end portion 22s (including the curved portion 22c when viewed in detail). It may be anything that covers the edge, and does not necessarily need to cover the entire peripheral edge of the plate-like member 22. That is, the metal member 71 does not need to cover the edge of the portion near the rear end of the side end portion 22s, but here, as shown in the figure, not only the front end portion 22f and the curved portion 22c but also the side. What covers the entire edge of the end 22s will be described.

  The metal member 71 corresponds to the front end portion 22f of the plate-like member 22, corresponds to the front portion 71f covering the edge of the front end portion 22f, and the side end portion 22s of the plate-like member 22, and the side end portion 22s. A pair of side portions 71s that cover the edges of the front portion, and a connecting portion between both ends of the front portion 71f and the front ends of the left and right side portions 71s, corresponding to the curved portion 22c of the plate-like member 22, and the curved portion 22c. And a pair of curved portions 71c covering the edges of the two. Note that the curvature of the inner surface 72d of the curved portion 71c matches the curvature of the edge of the curved portion 22c of the plate-like member 22 in plan view. Further, as shown in FIG. 3C, a concave portion 75 is formed in the side portion 71s.

  The metal member 71 has the same substantially tetrahedral modified cross-sectional shape in the entire range except the portion where the concave portion 75 is formed. Specifically, as shown in FIG. 4, the metal member 71 has an upper surface 72a and a lower surface 72b parallel to the upper surface portion 22a and the lower surface portion 22b of the plate-like member 22, and is orthogonal to the upper surface 72a and the lower surface 72b. An outer side surface 72c and an inner side surface 72d that extend in the direction in which they are to be moved. A connecting portion between the upper and lower ends of the outer surface 72c and the upper surface 72a and the lower surface 72b is a curved surface 72r having a substantially arc-shaped cross-sectional shape.

  A concave groove 73 is formed on the inner side surface 72d as a streak-like portion that engages with the peripheral edge of the plate-like member 22. The groove 73 is a streak-like recess formed continuously in the extending direction of the metal member 71, which is a member formed by bending the wire, that is, in the longitudinal direction of the wire, as shown in FIG. As described above, when the insulating material forming the plate-like member 22 enters the inside thereof, the adhesion between the peripheral edge of the plate-like member 22 and the inner side surface 72d of the metal member 71 is improved.

  In the example shown in the figure, the number of the concave grooves 73 is one, but may be two or more. Moreover, it can replace with the said ditch | groove 73, and can also form the stripe-like convex part which continues in the longitudinal direction of a wire. That is, the streaks formed on the inner surface 72d may be single or plural, and may be concave portions or convex portions, and further, the concave portions and the convex portions. May be mixed. When the adhesion between the peripheral edge of the plate-like member 22 and the inner side surface 72d of the metal member 71 is sufficiently high, the streak portion can be omitted as appropriate. That is, it is not necessary to form a streak portion on the inner side surface 72d.

  As described above, since at least the front edges 22f, the curved portions 22c, and the side edges 22s of the plate-like member 22 are covered with the metal member 71, the connector 1 is fitted to the mating connector. In addition, even if the tongue portion 21 extending forward is in contact with a member such as a housing of a mating connector or a mating terminal, the edge of the plate-like member 22 is prevented from being damaged or worn. In general, a plate-like member such as the plate-like member 22 is liable to be damaged or worn due to an edge of the plate-like member being in contact with another member or the like. Since it is located in the forward direction with respect to other members such as the mating connector, it is a part that is easily damaged or worn away. However, in the present embodiment, since the portion of the plate-like member 22 is protected by the metal member 71, even if the connector 1 and the mating connector are repeatedly inserted and removed, they may be damaged or worn away. Absent.

  As shown in FIG. 4, the upper surface 72 a and the lower surface 72 b of the metal member 71 do not necessarily have to be flush with the upper surface portion 22 a and the lower surface portion 22 b of the plate member 22. It is desirable to be flush with the upper surface portion 22a and the lower surface portion 22b. At least the surface of the plate-like member 22 on which the contact portion 64 of the terminal member 61 is disposed (upper surface portion 22a in the example shown in the figure) and the surface of the metal member 71 corresponding to the surface (example shown in the figure). It is desirable that the upper surface 72a) be flush with the upper surface 72a).

  Also, generally, the mating terminal of the mating connector is in a state before contacting the contact portion 64 so as to exert sufficient contact pressure on the contact portion 64 of the terminal member 61 by elastically deforming. That is, in a free state, the contact portion is formed to be at a position relatively lower than the upper surface portion 64 a of the contact portion 64. Therefore, when the connector 1 is mated with the mating connector, the contact portion of the mating terminal abuts on the front end edge of the tongue portion 21, and then slides along the front end edge of the tongue portion 21. Since it is pushed up, a large resistance is exerted, and the fitting resistance between the connector 1 and the mating connector is increased. However, in the present embodiment, since the front portion 71f of the metal member 71 exists at the front end edge of the tongue portion 21, the contact portion of the counterpart terminal is the outer surface 72c, the curved surface 72r, and the upper surface 72a of the front portion 71f. Therefore, a large resistance force is not exhibited, so that the fitting resistance between the connector 1 and the mating connector does not increase. In particular, since the curved surface 72r is located at the connecting portion between the outer surface 72c and the upper surface 72a, the contact portion of the counterpart terminal can move very smoothly.

  In addition, the recessed part 75 formed in the side part 71s of the metal member 71 is a part which engages with the other party engaging convex part with which the other party connector which is not shown in figure, Comprising: The fitting state of the connector 1 and the other party connector is not prepared. It is formed in order to prevent it from being released. In the example shown in the figure, the concave portions 75 are formed one by one on the lower surfaces 72b of the pair of side portions 71s, but the present invention is not limited to this, and the number and the number of the formed portions are arbitrary. Can be changed. The concave portion 75 can be omitted as appropriate.

  Next, a method for manufacturing the metal member 71 will be described.

  FIG. 5 is a perspective view showing the metal member of the connector in the embodiment of the present invention, FIG. 6 is a four-view diagram showing the metal member of the connector in the embodiment of the present invention, and FIG. 7 is the connector of the connector in the embodiment of the present invention. It is a schematic diagram which shows the manufacturing method of a metal member. 6A is a front view, FIG. 6B is a side view, FIG. 6C is a bottom view, FIG. 6D is a cross-sectional view, and is a cross-sectional view taken along line DD in FIG. 7, (a)-(d) is a figure which shows each process of the manufacturing method of a metal member.

  As described above, the metal member 71 is a member formed by bending a wire rod having a substantially rectangular irregular cross-sectional shape. In the present embodiment, the wire having a substantially rectangular irregular cross-sectional shape is plastically processed by roll forming as shown in FIG.

  First, as shown in FIG. 7A, a cylindrical solid material 70a having a circular cross-sectional shape is prepared. The material 70a is actually a long wire with a very long length, but is drawn as a short wire with both ends omitted for the sake of illustration. The material 70a is made of a conductive metal such as an aluminum alloy, a copper alloy, steel, a magnesium alloy, or a nickel alloy, but may be made of any kind of metal.

  Then, the material 70a is put into a roll forming machine (not shown). The roll forming machine includes a plurality of forming stands disposed along a pass line through which the material 70a is conveyed, and each forming stand includes a plurality of rotatable forming rolls.

  The material 70a put into the roll forming machine is conveyed along the pass line, and first passes through a forming stand provided with a pair of breakdown rolls 81a and 81b as shown in FIG. 7B. Each of the breakdown rolls 81a and 81b is a forming roll having a belt-shaped forming surface with a flat peripheral surface so as to face each other and so that their rotation axes are parallel to each other. Are disposed above and below the pass line. By passing between such a pair of breakdown rolls 81a and 81b, the material 70a having a circular cross-sectional shape is plastically processed, and the first processed material 70b as an intermediate processed material having a rectangular cross-sectional shape Become.

  Subsequently, the first processed material 70b is conveyed along the pass line and passes through a forming stand including a pair of fin pass rolls 82a and 82b as shown in FIG. 7C. The fin pass rolls 82a and 82b are arranged above and below the pass line so as to face each other and so that their rotation axes are parallel to each other. The upper fin pass roll 82a is a forming roll having a belt-shaped forming surface with a flat peripheral surface, similar to the breakdown rolls 81a and 81b, but the lower fin pass roll 82b is formed into a flat belt-like forming. A protruding ring-shaped flange portion 82f formed at the center of the surface is provided. By passing between the upper fin pass roll 82a and the lower fin pass roll 82b, the first processed material 70b has a concave groove 73 as a streak extending in the longitudinal direction on the lower surface. The second processed material 70c as the intermediate processed material having a rectangular cross-sectional shape is formed.

  When there are a plurality of the concave grooves 73, the flange portions 82f are also formed in the same number on the peripheral surface of the lower fin pass roll 82b. Moreover, when forming a convex part as a streak part in the lower surface of the 1st processed material 70b, a ditch | groove is formed in the surrounding surface of the lower fin pass roll 82b.

  Subsequently, the second processed material 70c is conveyed along the pass line and passes through a forming stand including four finishing processing rolls 83a, 83b, 83c and 83d as shown in FIG. The upper finishing roll 83a and the lower finishing roll 83b are arranged above and below the pass line so as to face each other and so that their rotational axes are parallel to each other. Further, the right finishing roll 83c and the left finishing roll 83c are arranged on the left and right sides of the pass line so as to be opposed to each other and so that their rotation axes are parallel to each other. By passing between the finishing rolls 83a, 83b, 83c and 83d, the second processed material 70c becomes the final processed material having the same cross-sectional shape as the metal member 71 shown in FIG. It becomes 3 processed material 70d.

  Here, the lower finishing roll 83b is a forming roll having a belt-like molding surface with a flat peripheral surface, like the breakdown rolls 81a and 81b, but the upper finishing roll 83a has both left and right ends. Is a forming roll provided with a belt-shaped forming surface of a peripheral surface protruding from the center and recessed. Thereby, the outer side surface 72c and the curved surface 72r continuous to the both ends of the outer side surface 72c are formed.

  The left finishing roll 83d is a forming roll having a strip-shaped molding surface with a flat peripheral surface, similar to the breakdown rolls 81a and 81b, but the right finishing roll 83c is a flat strip-shaped roll. One or a plurality of protrusions 83f formed at the center of the molding surface are provided. A recess 75 is formed in the lower surface 72b by the projection 83f. In the example shown in the figure, two protrusions 83f are formed on the peripheral surface of the right finishing roll 83c at intervals of ¼ circumference, but the number and interval of the protrusions 83f are formed. It changes suitably according to the number and site | part of the recessed part 75 made. The right finishing roll 83c and the left finishing roll 83d form an upper surface 72a, a lower surface 72b, and a recess 75 at a predetermined portion of the lower surface 72b. Further, when the recess 75 is not formed, the protrusion 83f is omitted.

  The peripheral surfaces of the upper finishing roll 83a, the right finishing roll 83c, and the left finishing roll 83d are as rough as possible (arithmetic average roughness: Ra or ten-point average roughness: Rz). A smooth surface with a low value of (for example, less than 1 [μm], desirably less than 0.5 [μm]) is desirable. Accordingly, the outer surface 72c, the curved surface 72r continuous to both ends of the outer surface 72c, the upper surface 72a, and the lower surface 72b have a low surface roughness value (for example, the value of Ra or Rz is 1 [μm ], Preferably less than 0.5 [μm]). Further, the peripheral surface of the lower finishing roll 83b does not have to be a smooth surface, but rather has a high surface roughness value (for example, Ra or Rz has a value of 1 [μm] or more). It is desirable that the surface has been subjected to pear (none) ground processing. As a result, the inner side surface 72d can be a rough surface having a high surface roughness value (for example, a Ra or Rz value of 1 [μm] or more) or a satin surface.

  Subsequently, the linear long third processed material 70d is further conveyed, passes through a cutting machine (not shown), and is cut into a predetermined length by the cutting machine. Then, the third processed material 70d cut to a predetermined length is put into a bending machine (not shown), so-called winding bending is performed by the bending machine, and the two places are bent at substantially right angles. It is done. The winding bending process is a processing method in which one end of a material such as a linear wire rod or bar is fixed and the material is bent by winding with a tool that moves along a mold. Thereby, the metal member 71 as shown in FIGS. 5 and 6 can be obtained.

  The metal member 71 is a member formed by bending two portions of a wire rod having a cross-sectional shape as shown in FIG. 6 (d) at a substantially right angle, as shown in FIG. 6 (c). And a substantially U-shaped planar shape. Specifically, the metal member 71 includes a straight front portion 71f, a pair of curved portions 71c connected to both ends of the front portion 71f and bent substantially at right angles, and the front portion from the curved portion 71c. And a pair of side portions 71s extending in a direction substantially orthogonal to 71f.

  The length of the side portion 71s may be shorter or longer than the example shown in the figure, and can be adjusted as appropriate. That is, the side portion 71s only needs to cover at least the edge in the vicinity of the front end of the side end portion 22s of the plate-like member 22, but the end of the entire portion of the side end portion 22s of the plate-like member 22 is sufficient. It may be long enough to cover the edge, and further reaches the inside of the main body portion 12 of the housing 11 and is exposed behind the rear surface portion 12r as the exposed portion 71r as in the example shown in FIG. It may be long.

  Furthermore, the metal member 71 is an integrally formed member. When a conductive metal is used, the metal member 71 is electrically connected to a ground line provided in a substrate or the like as a mounting member by using at least one place. The whole functions as a ground line or electromagnetic shield for the tongue 21.

  And since the concave groove 73 as the streak-like part formed continuously in the longitudinal direction of the wire rod is formed on the inner side surface 72d of the metal member 71, the plate-like member 22 made of an insulating material is replaced with the metal member. When the insulating material is molded so as to be integrated with 71, the insulating material enters the concave groove 73, thereby improving the adhesion between the peripheral edge of the plate-like member 22 and the inner side surface 72 d of the metal member 71. . Furthermore, when the inner side surface 72d is a rough surface or a textured surface, the insulating material is in close contact with the entire inner side surface 72d, so that the peripheral edge of the plate-like member 22 and the inner side surface 72d of the metal member 71 Adhesion is improved.

  The upper surface 72a and the lower surface 72b of the metal member 71 are smooth surfaces. As described above, when the plate-like member 22 made of an insulating material is molded so as to be integrated with the metal member 71, the pair of molds used for molding is closed, and the insulating material is placed in the closed cavity. When the metal member 71 is filled and molded, the upper surface 72a and the lower surface 72b of the metal member 71 placed at appropriate positions in the cavity formed on the mold surface come into contact with the mold surface. At this time, since the upper surface 72a and the lower surface 72b are smooth, the contact with the mold surface becomes dense, and a gap (gap) may be generated in the contact portion between the upper surface 72a and the lower surface 72b and the mold surface. Therefore, leakage of the insulating material is prevented, and the moldability of the tongue portion 21 is improved.

  Furthermore, in addition to the upper surface 72a and the lower surface 72b, the outer surface 72c and the curved surface 72r of the metal member 71 are also smooth. That is, the surface of the metal member 71 exposed on the surface of the tongue portion 21 is a smooth surface. Therefore, when the connector 1 is mated with the mating connector, the metal member positioned at the circumferential edge of the tongue 21 even if the circumferential edge of the tongue 21 abuts against a member such as a housing of the mating connector or a mating terminal. Since the exposed surface of 71 is smooth and the connecting portion between both ends of the outer surface 72c and the upper surface 72a and the lower surface 72b is the curved surface 72r, the contacted member is not damaged. Further, since the abutted member slides smoothly along the surface of the metal member 71, the tongue portion 21 does not receive a large impact and is not damaged. Further, even if the user of the connector 1 or the finger of the operator who performs the assembly work of the connector 1 contacts the peripheral edge of the tongue portion 21, the exposed surface of the metal member 71 is smooth and the outer Since the connecting portion between both ends of the side surface 72c and the upper surface 72a and the lower surface 72b is the curved surface 72r, the touched finger or the like is not damaged.

  Further, as shown in FIG. 6D, the cross section of the metal member 71 has a substantially rectangular and vertically long irregular cross-sectional shape, and the concave groove 73 is positioned at the approximate center in the vertical direction, and the outer surface 72c. It is indented toward. As a result, the cross section of the metal member 71 has a larger section modulus with respect to the main axis that crosses the cross section than a simple circular or square cross section having the same area. Accordingly, the front portion 71f and the side portion 71s have higher rigidity in the vertical direction in FIGS. 6A and 6B than members having a simple circular or square cross section having the same area, and FIG. And it becomes difficult to bend in the up-and-down direction in (b). That is, although the metal member 71 is formed of a small amount of material, it is difficult to bend in the vertical direction in FIGS.

  Since the metal member 71 is attached to the peripheral edge so as not to bend in the vertical direction in this manner, the peripheral edge of the plate-like member 22 made of an insulating material having low rigidity is reinforced by the metal member 71. Thus, it is possible to prevent bending in the vertical direction, that is, the thickness direction, distortion (distortion), and undulation. That is, since the peripheral edge of the tongue portion 21 is reinforced by the metal member 71, the tongue portion 21 is not deformed.

  Thus, in the present embodiment, the connector 1 has the tongue portion 21 including the terminal member 61. The tongue 21 includes a plate member 22 made of an insulating material having a terminal member 61 disposed on at least one surface (upper surface portion 22a in the example shown in the figure), and an end of the front end portion 22f of the plate member 22. It is the metal member 71 which covers an edge, Comprising: The metal member 71 which consists of wires is provided.

  Accordingly, the front end portion 22f of the plate-like member 22 is protected by the metal member 71, and the front end portion 22f of the plate-like member 22 is prevented from being damaged or worn out. In addition, when a conductive metal is used for the metal member 71 and the metal member 71 is electrically connected to a ground line included in the mounting member or the like of the connector 1, the metal member 71 functions as a ground line or an electromagnetic shield of the tongue portion 21. The influence of noise or the like on the signal that conducts the terminal member 61 and the occurrence of crosstalk can be reduced. Therefore, the highly reliable connector 1 can be provided. Moreover, manufacture is easy, a structure is simple, and the cost of the connector 1 can be reduced.

  The plate-like member 22 has a substantially rectangular shape in plan view, and the metal member 71 is a member formed by bending a wire, and has a substantially U-shape in plan view. The edge of the front-end part 22f of the plate-shaped member 22 and the front-end vicinity part of the side end part 22s is covered. Thereby, when the connector 1 is fitted to the mating connector, even if the tongue portion 21 extending forward contacts the member of the mating connector, such as the housing or the mating terminal, it is easily damaged or worn. Since the front end portion 22f and its peripheral edge are protected by the metal member 71, even if the connector 1 and the mating connector are repeatedly inserted and removed, they are not damaged or worn.

  Furthermore, the metal member 71 has a substantially rectangular cross-sectional shape, and is a streak portion (a concave groove 73 in the example shown in the figure) formed on the inner surface 72d facing the edge of the plate-like member 22. A strip-like portion extending in the longitudinal direction of the wire is provided, and the plate-like member 22 is integrated with the metal member 71. Since the streaks are formed on the inner side surface 72d of the metal member 71 as described above, the rigidity of the metal member 71 is improved, and the adhesion between the edge of the plate-like member 22 and the metal member 71 is improved. The integrity of the plate-like member 22 and the metal member 71 is improved. Therefore, the rigidity of the whole tongue portion 21 is improved.

  Furthermore, the plate-like member 22 is a member that is formed by filling an insulating material into the cavities of a pair of molds that are closed, and the metal member 71 is placed in the cavity and is placed on the plate-like member 22. And integrated. Accordingly, the unity between the plate-like member 22 and the metal member 71 is extremely high, the manufacture of the connector 1 is easy, and the cost can be reduced.

  Furthermore, the metal member 71 includes a surface exposed to the surface without facing the edge of the plate-like member 22, and the surface roughness value of the exposed surface is smaller than the surface roughness value of the inner side surface 72d. . As described above, since the exposed surface of the metal member 71 is smooth, even when the connector 1 is fitted with the mating connector, even if the peripheral edge of the tongue portion 21 comes into contact with a member such as a housing of the mating connector or a mating terminal. The abutted member is not damaged. Further, when the plate-like member 22 is formed, the contact between the exposed surface of the metal member 71 and the mold surface becomes dense, and there is no gap at the contact portion with the mold surface. Leakage of material is prevented and the moldability of the tongue 21 is improved.

  Furthermore, the surfaces exposed on the surface of the metal member 71 are the upper surface 72a and the lower surface 72b parallel to the upper surface portion 22a and the lower surface portion 22b of the plate-like member 22, the outer surface 72c facing the inner surface 72d, and the outer surface 72c. And curved surfaces 72r connecting the upper surface 72a and the lower surface 72b. Thereby, when the connector 1 is fitted to the mating connector, the contact portion of the mating terminal is pushed up while smoothly sliding along the outer surface 72c, the curved surface 72r, and the upper surface 72a. Since it does not exhibit, the connector 1 and the mating connector can be easily fitted.

  Furthermore, the cross-sectional shape of the metal member 71 is vertically long, and the streak portion is a concave groove 73 that is recessed toward the outer surface 72c. Thereby, although the metal member 71 is formed with a small amount of material, it is difficult to bend in the vertical direction. Therefore, the plate-like member 22 made of an insulating material having low rigidity is in a state where the peripheral edge thereof is reinforced by the metal member 71, and is bent, distorted, or wavy in the vertical direction, that is, the plate thickness direction. Is prevented.

  In the present embodiment, the connector member is used in the connector 1 having the tongue portion 21 including the terminal member 61. The connector member is a metal member 71 made of a wire, and the tongue portion 21 is a plate-like member made of an insulating material having a terminal member 61 disposed on at least one surface (upper surface portion 22a in the example shown in the figure). 22, the metal member 71 covers the edge of the front end portion 22 f of the plate-like member 22.

  Accordingly, the front end portion 22f of the plate-like member 22 is protected by the metal member 71 as a connector member, and the front end portion 22f of the plate-like member 22 is prevented from being damaged or worn out. In addition, when a conductive metal is used for the metal member 71 and the metal member 71 is electrically connected to a ground line included in the mounting member or the like of the connector 1, the metal member 71 functions as a ground line or an electromagnetic shield of the tongue portion 21. The influence of noise or the like on the signal that conducts the terminal member 61 and the occurrence of crosstalk can be reduced. Therefore, the highly reliable connector 1 can be provided. Further, the configuration is simple and the cost of the connector 1 can be reduced.

  Further, in the present embodiment, the manufacturing method is a method for manufacturing a connector member used for the connector 1 having the tongue portion 21 including the terminal member 61. The connector member is a metal member 71 made of a wire, and the tongue portion 21 is a plate-like member made of an insulating material having a terminal member 61 disposed on at least one surface (upper surface portion 22a in the example shown in the figure). The metal member 71 is a member that covers the edge of the front end portion 22f of the plate-like member 22, and has a substantially rectangular cross-sectional shape by roll forming a linear material 70a made of metal. A roll forming step for forming the three processed material 70d, a cutting step for cutting the third processed material 70d into a third processed material 70d having a predetermined length, and a third processed material having a predetermined length And a bending step of obtaining a metal member 71 having a substantially U-shaped shape in plan view by bending the material 70d. Thereby, the metal member 71 can be manufactured easily and at low cost.

  In addition, this invention is not limited to the said embodiment, It can change variously based on the meaning of this invention, and does not exclude them from the scope of the present invention.

  The present invention can be applied to a connector, a connector member, and a manufacturing method thereof.

DESCRIPTION OF SYMBOLS 1 Connector 11, 811 Housing 12, 812 Main-body part 12a, 22a, 64a Upper surface part 12b, 22b Lower surface part 12f Front surface part 12r Rear surface part 21, 822 Tongue part 22 Plate-shaped member 22c, 71c Curved part 22f Front end part 22s Side edge part 61 Terminal members 63, 863 Tail portions 64, 864 Contact portion 70a Material 70b First processed material 70c Second processed material 70d Third processed material 71 Metal member 71f Front portion 71r Exposed portion 71s Side portion 72a Upper surface 72b Lower surface 72c Outer side surface 72d Inner side surface 72r Curved surface 73 Concave groove 75 Concave portion 81a, 81b Breakdown roll 82a, 82b Fin pass roll 82f Flange portion 83a, 83b, 83c, 83d Finishing roll 83f Protruding portion 815, 872 Mounting portion 822a Groove 861 Terminal 862 Holding part 871 Shield case 873 Opening 891 Circuit board 892 Connector housing recess 893 Connection pad 894 Connection protrusion 895 Mounting recess

Claims (9)

(A) A connector having a tongue including a terminal member,
(B) The tongue is a plate member made of an insulating material having the terminal member disposed on at least one surface thereof, and a metal member that covers the edge of the front end portion of the plate member, and is made of a wire. A connector comprising a metal member. The plate-like member has a substantially rectangular shape in plan view,
The metal member is a member formed by bending a wire, and has a substantially U-shaped shape in a plan view, and at least an edge of a portion near the front end of the front end portion and the side end portion of the plate member. The connector according to claim 1 which covers The metal member includes a surface exposed to the surface without facing the edge of the plate-shaped member, and the surface includes an upper surface and a lower surface parallel to the upper surface portion and the lower surface portion of the plate-shaped member, and the upper surface and An outer surface extending in a direction orthogonal to the lower surface, and upper and lower ends of the outer surface, and a curved surface connecting the upper surface and the lower surface,
The connector according to claim 2, wherein the plate member is integrated with the metal member. The metal member has a substantially rectangular cross-sectional shape, and is a streak portion formed on an inner surface facing an end edge of the plate-like member, the streak portion extending in the longitudinal direction of the wire rod. The connector according to claim 3. The cross-sectional shape of the metal member is vertically long,
The connector according to claim 4, wherein the streak portion is a concave groove that is recessed toward the outer surface. The connector according to claim 5, wherein a surface roughness value of a surface exposed to the surface of the metal member is smaller than a surface roughness value of an inner surface facing the edge of the plate-like member. The plate-like member is a member that is molded by filling an insulating material in a cavity of a pair of molds that are closed.
The connector according to claim 2, wherein the metal member is placed in the cavity and integrated with the plate-like member. (A) A connector member used for a connector having a tongue including a terminal member,
(B) The connector member is a metal member made of a wire.
(C) The tongue includes a plate-like member made of an insulating material having the terminal member disposed on at least one surface thereof.
(D) The metal member covers the edge of the front end portion of the plate-like member. (A) A method for producing a connector member used in a connector having a tongue including a terminal member,
(B) The connector member is a metal member made of a wire,
(C) The tongue includes a plate-like member made of an insulating material having the terminal member disposed on at least one surface thereof.
(D) The metal member is
(E) a member covering the edge of the front end of the plate-shaped member,
(F) a roll forming step of forming a processed material having a substantially rectangular cross-sectional shape by roll forming a linear material made of metal;
(G) a cutting step of cutting the processed material into a processed material of a predetermined length;
(H) bending the processed material having the predetermined length to obtain a metal member having a substantially U-shaped shape in plan view. A method for manufacturing a connector member.

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