JP2010049831A - Connector and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable to surely prevent deformation of a terminal at over-molding, keep an interval between terminals constant at over-molding without fear of deformation of the terminals, in case a plurality of them are arranged by supporting a rear part thereof by an upper die from above in case a plurality of terminals are superposed vertically, and to facilitate manufacturing as well as lower cost. <P>SOLUTION: A housing comprises a first housing part retaining front parts of the terminals, and a second housing integrally formed with the first housing by way of over-molding with an insulating material so as to partially cover rear parts of the terminals. At least one of the terminals is provided with a protruded part protruded in a direction crossing its back-and-forth direction and formed at a part covered with the insulating material at the rear part. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

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

  Conventionally, a connector has been used to connect an electrical circuit on a board and other electrical circuits by being mounted directly on a board such as a printed circuit board or connected to a board-side connector mounted on a board. (For example, refer to Patent Document 1). Such a connector includes a large number of L-shaped terminals, and a housing for holding the L-shaped terminals is integrally formed.

  FIG. 14 is a cross-sectional view showing a conventional connector manufacturing process.

  First, as shown in FIG. 14 (a), one end (the right end in the figure) of the first terminal row 851a and the second terminal row 851b formed by arranging a plurality of L-shaped terminals, respectively, is a holding metal. Attach to mold 891. The holding mold 891 has terminal holding holes (not shown) as many as the terminals for receiving and holding the terminals of the first terminal row 851a and the second terminal row 851b. Yes.

  Also, a spacer 831 made of resin is attached between the first terminal row 851a and the second terminal row 851b. The spacer 831 is provided with a groove for accommodating each terminal, and maintains a constant distance between the first terminal row 851a and the second terminal row 851b, and a distance between the terminals in the first terminal row 851a and The interval between the terminals in the second terminal row 851b is kept constant.

  Subsequently, as shown in FIG. 14B, the holding mold 891 is sandwiched from above and below by the lower mold 892 and the upper mold 893. At this time, the lower ends of the terminals of the first terminal row 851a and the second terminal row 851b are inserted into terminal holding holes (not shown) formed in the lower mold 892. Further, the convex portion 893a formed on the upper mold 893 is in contact with the upper surface of the second terminal row 851b. As a result, the first terminal row 851a and the second terminal are formed in the cavity formed by being surrounded by the holding mold 891, the lower mold 892, and the upper mold 893, that is, in the cavity. The position of each terminal in the row 851b is fixed.

Subsequently, molten resin injected from an injection molding machine (not shown) is filled in the cavity. When the resin is cooled and solidified, as shown in FIG. 14C, a housing 811 having a shape corresponding to the cavity is formed integrally with the first terminal row 851a and the second terminal row 851b. Connector can be obtained.
JP 2002-144368 A

  However, in the conventional connector, in order to prevent displacement and deformation of each terminal, a spacer 831 having a groove for accommodating each terminal is interposed between the first terminal row 851a and the second terminal row 851b. Since it is necessary to attach, manufacturing cost becomes high and manufacturing time will become long. In particular, when the number of terminal rows becomes three or more, that is, when the terminals overlap three or more rows in the vertical direction, it is necessary to create two or more spacers and attach them between the terminal rows. And the work of attaching the spacer becomes complicated and difficult.

  The present invention solves the problems of the conventional connector, and more reliably prevents the terminal from being deformed during overmolding. Is supported from above by the upper mold, so that the terminals are not deformed even during overmolding, and the intervals between the terminals when a plurality of terminals are arranged can be kept constant. An object of the present invention is to provide a connector that is easy to manufacture and low in cost, and a method for manufacturing the connector.

  Therefore, in the connector of the present invention, the terminal comprises a front portion including a front contact portion formed at one end and a rear portion including a rear contact portion formed at the other end, and is made of an insulating material. And a housing having a housing for holding the terminal, wherein the housing is overmolded with an insulating material so as to cover at least a part of the rear portion of the terminal and the first housing portion for holding the front portion of the terminal. A second housing part formed integrally with the first housing part, wherein at least one of the terminals is formed in a part covered with the insulating material in the rear part, and the front-rear direction of the terminal And a protrusion protruding in a direction intersecting with.

  In another connector of the present invention, the terminal further includes a plurality of terminals, and at least a portion covered with the insulating material in the rear portion is arranged in a vertical direction, and the protruding portion is a front-back direction of the terminal. And the protrusion of each terminal protrudes in a direction intersecting with the vertical direction, and the protrusion of each terminal is formed at a different position with respect to the front-back direction of the terminal.

  In still another connector according to the present invention, the upper mold of the mold apparatus forming the second housing portion further includes at least one upper mold convex portion projecting downward, and at least one of the projecting portions. One is supported from above by the upper mold protrusion.

  In still another connector of the present invention, the rear portion of at least one terminal is supported from the side by the upper mold convex portion.

  In still another connector of the present invention, the rear portion further includes a bridging portion that extends in the front-rear direction of the terminal and connects the rear contact portion and the front portion, and the rear contact portion is the bridging portion. The protrusion extends downward from the rear end of the portion, and the protrusion is formed at the upper end of the rear contact portion.

  In the connector manufacturing method of the present invention, a front portion including a front contact portion formed at one end, a rear portion including a rear contact portion formed at the other end, and a rear portion formed at the rear portion, with respect to the front-rear direction. A first housing part made of an insulating material so that the terminals provided with protrusions protruding in a direction intersecting with each other are arranged so as to overlap in the vertical direction, and the positions of the protrusions of each terminal differ with respect to the front-rear direction. And the mold device is closed, and a cavity that covers at least a part of the rear portion of each terminal is formed by the lower mold and the upper mold, and the protrusion of each terminal is formed by the upper mold. The second housing part is integrated with the first housing part by supporting from above, filling the cavity with an insulating material, and overmolding at least part of the rear part of each terminal. And a step of forming a.

  In another connector manufacturing method of the present invention, the rear portion of at least one terminal is supported from the side by the upper mold convex portion of the upper mold.

  According to the present invention, the connector ensures the prevention of deformation of the terminal during overmolding, and even if the terminals are arranged in a plurality of layers in the vertical direction, the rear portion thereof is viewed from above by the upper mold. It becomes possible to support and overmold. As a result, the terminals are not deformed, the distance between the terminals can be kept constant, the manufacturing can be facilitated, and the cost can be reduced.

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

  FIG. 1 is a first perspective view showing a connector according to the first embodiment of the present invention, FIG. 2 is a second perspective view showing the connector according to the first embodiment of the present invention, and FIG. It is a 5th page figure showing the connector in a 1st embodiment. In FIG. 3, (a) is a top view, (b) is a side view, (c) is a bottom view, (d) is a front view, and (e) is a back view.

  In the figure, reference numeral 1 denotes a connector according to the present embodiment, a first housing part 11 as a primary molding part made of an insulating material such as a synthetic resin, and a conductive material such as a metal attached to the first housing part 11. And a second housing part 21 as a secondary molding part which is an overmold part made of an insulating material such as a synthetic resin, which is formed so as to be integrated with the terminal 51 described later and the first housing part 11. And mounted on a substrate 101 such as a printed circuit board. In addition, when demonstrating the 1st housing part 11 and the 2nd housing part 21 integrally, it demonstrates as the housing 10. FIG.

  In the present embodiment, expressions indicating directions such as upper, lower, left, right, front, rear, etc. used for explaining the configuration and operation of each part of the connector 1 are not absolute but relative. It is appropriate when each part of the connector 1 is in the posture shown in the figure, but when the posture changes, it should be interpreted according to the change in posture. . However, in this embodiment, unless otherwise specified, the front-rear direction means a direction in which a contact portion 53 or a bridging portion 63 of the terminal 51 described later extends, and the up-down direction means the second housing portion 21. Means a direction in which an upper mold 93 and / or a lower mold 92, which will be described later, to operate is operated and intersects (for example, intersects with) the front-rear direction.

  Among resin molding techniques, techniques such as two-color molding (multi-molding), outsert molding, and insert molding, which are called double mold molding, are referred to as overmolding.

  The connector 1 in the present embodiment is one of which is connected to an electric wire connector and the other is connected to a printed wiring board, and is a right angle type. However, the present invention is not necessarily limited thereto. A substrate and a printed wiring board may be connected, or a straight type may be used.

  The first housing portion 11 is a substantially rectangular parallelepiped member including a rectangular top plate portion 12, a bottom plate portion 13, and left and right side plate portions 16, and includes a substantially square front portion 14 which is one end surface in the longitudinal direction. The fitting opening 31 is formed. The fitting opening 31 is a portion into which a fitting convex portion of a cable-side connector as a mating connector connected to a terminal end of a cable (not shown) is inserted, and a contact as a front contact portion of the terminal 51 is inside. A connecting projection 33 to which the tip 54 is attached is disposed. When the fitting convex part of the cable side connector is fitted into the fitting opening 31, the contact part of the other terminal (not shown) provided in the cable side connector comes into contact with the contact tip part 54, whereby the terminal 51 is Electrically connected to the counterpart terminal.

  Further, in the first housing part 11, the second housing part 21 is made of the same material as the first housing part 11 in the substantially square back part 15 which is the other end face in the longitudinal direction and in the vicinity of the back part 15. It is integrated by injection molding. The second housing portion 21 is a member that is overmolded so as to wrap a second portion 61 of a terminal 51, which will be described later, attached to the first housing portion 11, and has the same insulating properties as the first housing portion 11. It consists of material and is integrated with the 1st housing part 11. As shown in FIG. The second back surface portion 25 of the second housing portion 21 is formed so as to be flush with the back surface portion 15 of the first housing portion 11. The second top surface portion 22 of the second housing portion 21 formed so as to be flush with the top plate portion 12 of the first housing portion 11 has an upper mold 93 (described later) used for overmolding. A plurality of upper die-cutting holes 41 are formed as die-cut marks formed when removed from the mold.

  In addition, a substrate side opening 32 is formed in a portion of the bottom plate portion 13 of the first housing portion 11 in the vicinity of the back surface portion 15, and the second bottom surface portion of the second housing portion 21 is formed in the substrate side opening 32. 23 is exposed in a concave state. And from the 2nd bottom face part 23, the lower end, ie, the front-end | tip, of the board | substrate side connection part 64 as a back contact part of the terminal 51 protrudes below. The rear contact portion serves to connect the circuit formed on the substrate 101 and the terminal 51. In the present embodiment, as an example, the rear contact portion is fixed to the through hole 103 formed on the substrate 101 with solder as described later, and corresponds. Connected to conductive trace.

  The second bottom surface portion 23 is formed with a plurality of lower die-cutting holes 42 as traces of die-cutting formed when removed from a lower mold 92 (described later) used for overmolding. Yes. Furthermore, the bottom plate portion 13 is integrally formed with an engaging leg 18 extending downward, and the second bottom surface portion 23 is integrally formed with an engaging leg 28 extending downward. Has been.

  And the connector 1 is mounted in the surface of the site | part close to the edge 101a of the board | substrate 101, as FIG.1 and 2 show. The substrate 101 is previously formed with an engagement hole 102 that penetrates the substrate 101 in the thickness direction. The engagement hole 102 is formed at a position corresponding to each of the engagement legs 18 and 28 of the connector 1, and the distal ends of the engagement legs 18 and 28 are inserted and engaged with the connector 1 mounted on the substrate 101. Combined. When the tips of the engagement legs 18 and 28 are engaged with the engagement holes 102, the connector 1 is securely attached to the board 101.

  Further, a through hole 103 penetrating the substrate 101 in the thickness direction is formed in the substrate 101 in advance. The through-hole 103 is a conductive opening in which a conductive metal film is formed on the inner surface and is electrically connected to a conductive trace (not shown) provided in the substrate 101, and the terminal 1 in a state where the connector 1 is mounted on the substrate 101. The front end of the board-side connecting portion 64 51 is inserted and fixed by conductive fixing means such as solder. Thereby, each terminal 51 is electrically connected to the corresponding conductive trace.

  Next, a method for manufacturing the connector 1 having the above configuration will be described. First, the terminal 51 attached to the 1st housing part 11 is demonstrated.

  FIG. 4 is a perspective view showing a terminal in the first embodiment of the present invention, FIG. 5 is a three-view diagram showing the terminal in the first embodiment of the present invention, and FIG. 6 is a first embodiment of the present invention. FIG. 7 is a perspective view showing a state in which a part of the first housing portion before overmolding the terminal in the first embodiment of the present invention is deleted. is there. 5A is a top view, FIG. 5B is a side view, and FIG. 5C is a rear view.

  In the present embodiment, the terminals 51 are arranged one above the other so as to form three rows in the vertical direction of the connector 1 and are arranged side by side so as to form two rows in the width direction of the connector 1. Here, the uppermost terminal 51 is referred to as a first terminal 51a, the intermediate terminal 51 is referred to as a second terminal 51b, and the lowermost terminal 51 is referred to as a third terminal 51c. Note that when the first terminal 51a, the second terminal 51b, and the third terminal 51c are described in an integrated manner, they will be described as the terminal 51. And when each part of the 1st terminal 51a, the 2nd terminal 51b, and the 3rd terminal 51c is explained individually, the name of "the 1st", "the 2nd", and "the 3rd" is attached, and the end of the code Identification is performed by adding the letters “a”, “b”, and “c”. Further, in the case where each part of the first terminal 51a, the second terminal 51b, and the third terminal 51c is described without being individually identified, the names “first”, “second”, and “third” and “a” are used. , “B” and “c” are omitted.

  The terminal 51 is an integrally molded member made of a conductive metal, and is an elongated member extending linearly, and a first portion 52 as a front portion held by the first housing portion 11. The side surface has a substantially U-shape or U-shape, and has a second portion 61 as a rear portion encased in the second housing portion 21 by overmolding. The first portion 52 includes an elongated strip-like main body portion 57 extending linearly, an elongated rod-like contact portion 53 extending forward from the front end of the main body portion 57, and the contact portion 53. And a contact tip 54 connected to the front end. The second portion 61 includes an elongated strip-like connection portion 67 extending rearward from the rear end of the main body portion 57, and an elongated strip-plate-like extension extending upward from the rear end of the connection portion 67. The rising portion 62, an elongated strip-like bridge portion 63 extending rearward from the upper end of the rising portion 62, and an elongated strip-like substrate-side connection portion 64 extending downward from the rear end of the bridge portion 63 With.

  Further, as shown in FIG. 5A, the connection portion 67 is connected to the main body portion 57 via a bending portion 66 having a crank-like shape when viewed from above. Thereby, when viewed from above, the central axis passing through the connecting portion 67, the rising portion 62, the bridging portion 63, and the board side connecting portion 64 is relative to the central axis passing through the main body portion 57, the contact portion 53, and the contact tip portion 54. It is offset leftward (downward in FIG. 5A) or rightward. 4 and 5 are included in the left column of the terminals 51 arranged in two rows in the width direction of the connector 1, and the center passing through the second portion 61 is included. The axis is offset to the left with respect to the central axis passing through the first portion 52. On the other hand, in the terminal 51 included in the right column among the terminals 51 arranged in two rows in the width direction of the connector 1, the central axis passing through the second portion 61 is the central axis passing through the first portion 52. Offset to the right. As a result, the second portion 61 of the terminal 51 in the left column and the terminal 51 of the right column rather than the distance between the first part 52 in the terminal 51 of the left column and the first part 52 in the terminal 51 of the right column. The distance between the second part 61 and the second part 61 becomes wider.

  In the present embodiment, the first part 52 of the terminal 51 is attached to the first housing part 11 by being press-fitted. Specifically, as shown in FIG. 7, a plurality of terminal press-fitting holes 37 are formed in the terminal support part 36 provided in the first housing part 11, and the first of the terminals 51 from the rear of each terminal press-fitting hole 37. The part 52 is inserted. In this case, each terminal 51 is inserted into the terminal press-fit hole 37 with the contact tip 54 as the head, and the main body 57 having a large size is press-fit into the terminal press-fit hole 37. In addition, since the convex part 55 is formed in the up-and-down side edge of the said main-body part 57, and the convex part 56 is formed in the right-and-left side surface of the said main-body part 57, the said convex parts 55 and 56 are terminal press-fit holes. The terminal 51 is fixed to the terminal press-fitting hole 37 by biting into the inner wall of 37.

  As shown in FIG. 6, the terminal housing space 35 in which the second portion 61 of the terminal 51 is housed is formed in the vicinity of the back surface portion 15 in the first housing portion 11. The terminal accommodating space 35 is a substantially rectangular parallelepiped space having a front end defined by the terminal support portion 36 and left and right sides defined by the side plate portion 16, and passes through a rectangular missing portion 12 a formed in the top plate portion 12. It is opened upward, opened downward through a missing portion 13 a formed in the bottom plate portion 13, and opened rearward through a missing portion 15 a formed in the back surface portion 15. Thereby, the terminal 51 can be moved from the rear with respect to the terminal support part 36 with which the 1st housing part 11 is equipped, and the operation | work which press-fits the 1st part 52 to the terminal press-fit hole 37 can be performed easily. In FIG. 7, in order to facilitate understanding of the state in the terminal accommodating space 35, a part of the left side plate portion 16 is removed.

  The bridging portion 63 of at least one terminal 51 is formed with a protruding portion 65 formed by cutting and raising the upper edge of the rear end which is also the upper end of the board connecting portion 64. The protrusions 65 are formed so as to protrude outward in the width direction from the bridging portions 63 of the terminals 51 arranged in two rows in the width direction of the connector 1. That is, as in the example shown in FIGS. 4 and 5, in the terminals 51 included in the left column, the central axis passing through the second part 61 is offset to the left with respect to the central axis passing through the first part 52. In the case of the terminal 51 thus formed, the protrusion 65 is formed so as to protrude to the left. On the other hand, in the case of the terminals 51 included in the right column and the central axis passing through the second part 61 is offset to the right with respect to the central axis passing through the first part 52, the protrusion 65 is on the right It is formed to protrude in the direction.

  Such a protruding direction is determined based on the flow of resin when the second housing portion 21 is integrated by overmolding, as will be described later.

  Note that the protrusion 65 can be omitted for the first terminal 51a which is the terminal 51 located at the top. In the example shown in FIG. 7, the second terminal 51 b and the third terminal 51 c each include a second protrusion 65 b and a third protrusion 65 c, but the first terminal 51 a does not include the protrusion 65. But you may form the 1st projection part 65a in the 1st terminal 51a.

  Further, the protrusion 65 does not necessarily have to be formed by raising the bridging portion 63, and may be formed by any method. For example, it may be formed by bulging a part of the bridging portion 63. Moreover, it does not necessarily have to be formed integrally with the bridging portion 63, and may be formed by, for example, fixing another member to the bridging portion 63 by adhesion or welding.

  Further, the portion where the protrusion 65 is formed in the bridging portion 63 is not necessarily near the lower end of the bridging portion 63, and may be, for example, near the upper end of the bridging portion 63 or the upper and lower intermediate portions. Furthermore, the portion of the terminal 51 where the protrusion 65 is formed is not necessarily the bridging portion 63, and may be formed in the rising portion 62 or the board side connection portion 64, for example.

  That is, the protrusion 65 is formed in a portion covered by the second housing portion 21 formed by overmolding.

  Next, a method for overmolding the terminal 51 will be described.

  FIG. 8 is a perspective view showing the state of the terminal before the mold is assembled in the first embodiment of the present invention, and FIG. 9 is the state of the terminal after the mold is assembled in the first embodiment of the present invention. FIG. 10 is a perspective view showing a state of the first housing part from which a terminal and part of the mold are assembled in the first embodiment of the present invention, and FIG. 11 is a first perspective view of the present invention. It is the perspective view which shows the state of the 1st housing part from which the terminal after a metal mold | die incorporation in the embodiment and one part were deleted, and is the figure which saw through the metal mold | die.

  First, a mold apparatus used for overmolding is opened, and as shown in FIG. 8, a first 51 in which a terminal 51 is attached between a lower mold 92 and an upper mold 93 that are separated vertically. The housing part 11 is set.

  8 and 9, the first housing portion 11 is not shown for the purpose of facilitating understanding of the positional relationship between the terminal 51, the lower mold 92, and the upper mold 93. 8 to 11, for the same purpose, upper and lower mold support devices that respectively support the lower mold 92 and the upper mold 93, drive devices that drive the upper and lower mold support devices, and the like. The illustration is also omitted. Further, in FIGS. 8 to 11, for the same purpose, illustration of the main body portion of the upper mold 93 is also omitted, and for the upper mold 93, only the upper mold convex portion 94 protruding into the cavity is illustrated. ing. Here, the upper mold convex portion 94 that holds the first terminal 51a is referred to as a first upper mold convex portion 94a, the upper mold convex portion 94 that holds the second terminal 51b is referred to as a second upper mold convex portion 94b, and the third terminal The upper mold convex portion 94 that holds the 51c is referred to as a third upper mold convex portion 94c. When the first upper mold convex portion 94a, the second upper mold convex portion 94b, and the third upper mold convex portion 94c are described in an integrated manner, they will be described as the upper mold convex portion 94.

  As shown in FIG. 8, the first contact portion 53a, the second contact portion 53b, and the third contact in a state where the first terminal 51a, the second terminal 51b, and the third terminal 51c are attached to the first housing portion 11. The portion 53c, the first contact tip 54a, the second contact tip 54b, and the third contact tip 54c are arranged one above the other so as to form three rows in the vertical direction of the connector 1, and the width of the connector 1 They are arranged side by side so that there are two rows in the direction. This arrangement is adapted to the arrangement of the contact portions of the mating terminal provided in the cable-side connector, whereby each of the contact tip portions 54 can come into contact with each of the contact portions of the mating terminal.

  On the other hand, the first board side connection part 64a, the second board side connection part 64b, and the third board side connection part 64c are arranged to overlap in the front-rear direction so as to form three rows in the front-rear direction of the connector 1, and the connector 1 Are arranged side by side in two rows in the width direction. This arrangement is adapted to the arrangement of the through holes 103 formed in the substrate 101, whereby each of the substrate side connection portions 64 is inserted into each of the through holes 103 of the substrate 101.

  The first bridging portion 63a, the second bridging portion 63b, and the third bridging portion 63c are the first contact portion 53a, the second contact portion 53b, the third contact portion 53c, the first contact tip portion 54a, and the second contact tip. Similar to the portion 54b and the third contact tip portion 54c, the connectors 1 are arranged one above the other so as to form three rows in the vertical direction, and are arranged side by side so as to form two rows in the width direction of the connector 1. ing. Moreover, the 2nd projection part 65b and the 3rd projection part 65c which were formed in the 2nd bridge | bridging part 63b and the 3rd bridge | bridging part 63c are formed in the position shifted | deviated back and forth.

  The lower mold 92 includes a holding hole 95 that accommodates each tip of the board-side connecting portion 64, an inner lower mold convex portion 96a, and an outer lower mold convex portion 96b. The holding holes 95 are slit-shaped bottomed holes that open on the upper surface of the lower mold 92 and extend in the vertical direction, and are arranged in two rows in the width direction corresponding to the arrangement of the tips of the substrate side connection portions 64. It is arranged to be. Further, the inner lower mold convex portion 96a is a single quadrangular columnar member extending upward from the upper surface of the lower mold 92, and the connection portion 67, the rising portion 62, and the bridging portion in the terminal 51 in the left column. 63 is formed at the center in the width direction so as to enter between the connecting portion 67, the rising portion 62 and the bridging portion 63 in the terminal 51 in the right column. Furthermore, the outer lower mold protrusions 96b are a pair of quadrangular columnar members extending upward from the upper surface of the lower mold 92, and the terminals on the left and right rows of the bridging portions 63 in the terminals 51 on the left row. 51, it is formed so that it may be located in the both sides of the width direction so that it may be located in the right side of the bridge part 63 in 51. FIG.

  The first upper mold convex portion 94a is a pair of quadrangular columnar members that extend downward from the lower surface of the main body portion of the upper mold 93 (not shown), and the lower ends thereof are the first terminals in the left and right rows. It is formed so as to be lined up on both sides in the width direction so as to be in contact with or close to the upper end of the first bridging portion 63a in 51a. Furthermore, the second upper mold convex portion 94b is a pair of quadrangular columnar members that extend downward from the lower surface of the main body portion of the upper mold 93 (not shown), and the first bridge at the first terminal 51a in the left column. It is located on the left side of the part 63a and on the right side of the first bridging part 63a in the first terminal 51a in the right row, and its lower end contacts the upper end of the second protrusion 65b in the second terminal 51b in the left and right rows. It is formed so as to be lined up on both sides in the width direction so as to be in contact with or close to each other. Further, the third upper mold convex portion 94c is a pair of quadrangular columnar members extending downward from the lower surface of the main body portion of the upper mold 93, and the first bridging portion 63a in the first terminal 51a in the left column. And the left side of the second bridging part 63b in the second terminal 51b and the right side of the first bridging part 63a in the first terminal 51a and the right side of the second bridging part 63b in the second terminal 51b, and its lower end Are arranged on both sides in the width direction so as to be in contact with or close to the upper ends of the third protrusions 65c in the third terminals 51c in the left and right rows.

  Subsequently, the mold apparatus is closed and the parting surfaces (not shown) of the lower mold 92 and the upper mold 93 are brought into contact with each other. Thereby, a cavity (not shown) corresponding to the shape of the second housing part 21 is formed between the lower mold 92 and the upper mold 93, and the second part 61 of the terminal 51 accommodated in the cavity is shown in FIG. As shown in 9 to 11, the lower mold 92 and the upper mold 93 hold the mold.

  The tip of the board-side connection portion 64 of each terminal 51 is inserted and held in the corresponding holding hole 95 of the lower mold 92. In this case, the distance between the outer peripheral surface at the tip of the substrate-side connecting portion 64 and the inner peripheral surface of at least the opening of the holding hole 95 is set to be so small that molten resin does not flow therebetween. Further, the tip of the board side connection portion 64 and the bottom surface of the holding hole 95 are set so as to abut or approach each other.

  In addition, the inner lower mold convex portion 96 a of the lower mold 92 enters between the connection portion 67, the rising portion 62, and the bridging portion 63 in the terminals 51 in the left and right rows. In this case, the left side surface of the inner lower mold convex portion 96a and the right side surfaces of the connection portion 67, the rising portion 62, and the bridging portion 63 of the terminal 51 in the left column are in contact with or close to each other. The right side surface and the left side surface of the connecting portion 67, the rising portion 62, and the bridging portion 63 of the terminals 51 in the right column are set so as to contact or be close to each other.

  Further, the outer lower mold convex part 96 b of the lower mold 92 is located outside the bridging part 63 in the terminals 51 in the left and right rows. In this case, the right side surface of the left outer lower mold convex portion 96b and the left side surface of the bridging portion 63 of the terminal 51 in the left column abut or approach each other, and the left side surface of the right outer lower mold convex portion 96b; The right side surface of the bridging portion 63 of the terminal 51 in the right column is set to be in contact with or close to the right side surface.

  Further, the first upper mold convex portion 94a of the upper mold 93 is positioned directly above the first bridging portion 63a in the first terminals 51a in the left and right rows. In this case, the lower ends of the first upper mold convex portions 94a are set so as to abut or approach the upper ends of the first bridging portions 63a in the first terminals 51a in the left and right rows.

  Further, the second upper mold convex portion 94b of the upper mold 93 is located outside the first bridging portion 63a in the first terminal 51a in the left and right rows and directly above the second protrusion 65b in the second terminal 51b. To do. In this case, the lower end of the second upper mold convex portion 94b is in contact with or close to the upper end of the second protrusion 65b in the second terminal 51b in the left and right rows, and the right side surface of the left second upper mold convex portion 94b. The left side surface of the first bridging portion 63a of the first terminal 51a in the left row is in contact with or close to the left side surface of the second upper mold convex portion 94b on the right side and the first terminal 51a in the right row of the first terminal 51a. One bridging portion 63a is set so as to be in contact with or close to the right side surface.

  Further, the third upper mold convex portion 94c of the upper mold 93 is outside the first bridging portion 63a and the second bridging portion 63b in the first terminal 51a and the second terminal 51b in the left and right rows, and the third terminal 51c. Is located directly above the third protrusion 65c. In this case, the lower end of the third upper mold convex portion 94c is in contact with or close to the upper end of the third protrusion 65c in the third terminal 51c in the left and right rows, and the right side surface of the left third upper mold convex portion 94c. The left side surfaces of the first bridging portion 63a and the second bridging portion 63b of the first terminal 51a and the second terminal 51b in the left row are in contact with or close to the left side surface of the right third upper mold convex portion 94c. The right side surfaces of the first bridging part 63a and the second bridging part 63b in the first terminal 51a and the second terminal 51b in the right column are set so as to contact or be close to each other.

  Subsequently, an insulating material such as a synthetic resin injected from an injection device (not shown) is filled in the cavity in a molten state. At this time, each part of the second part 61 of the terminal 51 is easily displaced or deformed by the force received from the flow of the molten insulating material flowing into the cavity. That is, the second part 61 is connected to the first part 52 attached to the first housing part 11 at one end, but is an elongated member, and therefore receives a force from the molten insulating material flowing in the cavity. It is in a state where it is easy to be displaced or deformed. However, in the present embodiment, in addition to the holding hole 95 of the lower mold 92, the inner lower mold convex portion 96 a and the outer lower mold convex portion 96 b of the lower mold 92 and the upper mold convex portion 94 of the upper mold 93. Therefore, each part in the second part 61 is not displaced or deformed.

  Specifically, the board-side connection portion 64 of each terminal 51 is supported by the bottom surface of the holding hole 95 from below because the tip thereof is in contact with or close to the bottom surface of the holding hole 95. Therefore, even if the second portion 61 of each terminal 51 receives a downward force, it is not displaced or deformed downward.

  The first bridging portion 63a of the first terminal 51a has its upper end in contact with or close to the lower end of the first upper mold convex portion 94a, and is therefore supported from above by the first upper mold convex portion 94a. . Further, the second bridging portion 63b of the second terminal 51b has the upper end of the second projecting portion 65b in contact with or close to the lower end of the second upper mold convex portion 94b. 94b. Further, the third bridging portion 63c of the third terminal 51c has the upper end of the third projecting portion 65c in contact with or close to the lower end of the third upper mold convex portion 94c. 94c. Therefore, even if the second portion 61 of each terminal 51 receives an upward force, it is not displaced or deformed upward.

  Moreover, since the inner side surface in the width direction of the connector 1 is in contact with or close to the side surface of the inner lower mold convex portion 96a, the connection portion 67, the rising portion 62, and the bridging portion 63 of each terminal 51 are It is supported from the inside by the inner lower mold convex portion 96a. Therefore, even if the second portion 61 of each terminal 51 receives an inwardly directed force, it is not displaced or deformed inwardly.

  Furthermore, since the outer side surface in the width direction of the connector 1 is in contact with or close to the side surface of the outer lower mold convex portion 96b, the bridging portion 63 of each terminal 51 has an outer lower mold convex portion from the outer side in the width direction. 96b. Therefore, the second portion 61 of each terminal 51 does not displace or deform outward even when receiving a force directed outward.

  Further, the first bridging portion 63a of the first terminal 51a has an outer side surface in the width direction of the connector 1 that is in contact with or close to the side surfaces of the second upper mold convex portion 94b and the third upper mold convex portion 94c. The second upper mold convex part 94b and the third upper mold convex part 94c are supported from the outside in the width direction. Further, the second bridging portion 63b of the second terminal 51b has an outer side surface in the width direction of the connector 1 that is in contact with or close to the side surface of the third upper mold convex portion 94c. 3 is supported by the upper mold convex portion 94c. The third bridging portion 63c of the third terminal 51c is not supported by the upper mold convex portion 94 from the outside in the width direction, but is substantially retained because it is close to the opening portion of the retaining hole 95. It is supported by the opening of the hole 95. Therefore, even if the second portion 61 of each terminal 51 receives an outward force, it is not further displaced or deformed outward.

  Subsequently, when the insulating material filled in the cavity is solidified, the mold apparatus is opened and the molded product is taken out. Thereby, as shown in FIGS. 1 to 3, the connector 1 having the housing 10 integrated with the second housing portion 21 fitted (fitted) into the first housing portion 11 can be obtained as a molded product. it can.

  Further, in the present embodiment, only the example in which the terminals 51 are arranged in the vertical direction so as to form three rows in the vertical direction of the connector 1 has been described, but the terminals 51 are arranged in two rows in the vertical direction of the connector 1. May be arranged so as to be vertically stacked, or may be arranged vertically so as to be four or more rows in the vertical direction of the connector 1.

  Furthermore, in the present embodiment, only the example in which the terminals 51 are arranged side by side so as to be in two rows in the width direction of the connector 1 has been described, but the terminals 51 are in one row in the width direction of the connector 1. They may be arranged in such a manner that they may be arranged in three or more rows in the width direction of the connector 1.

  Furthermore, in the present embodiment, only the example in which the second portion 61 of the terminal 51 has a substantially U-shaped or U-shaped side surface shape has been described. It may have a shape. In this case, the second portion 61 having a substantially L-shaped side surface shape can be realized by omitting the rising portion 62 and shortening the length of the substrate side connecting portion 64.

  As described above, in the present embodiment, the connector 1 includes the first portion 52 including the contact tip portion 54 formed at one end and the second portion 61 including the board-side connection portion 64 formed at the other end. The terminal 51 includes a plurality of terminals 51 that are arranged one above the other and a housing 10 that is made of an insulating material and holds the terminals 51. The housing 10 includes a first portion 52 of each terminal 51. The first housing part 11 to be held and the second housing part integrally formed with the first housing part 11 by overmolding with an insulating material so as to cover at least a part of the second part 61 of each terminal 51. 21 and the second part 61 of each terminal 51 is supported from above by an upper mold 93 of the mold apparatus that forms the second housing part 21.

  Thereby, even if the 2nd part 61 of each terminal 51 receives the force which faced upwards, it is not displaced or deform | transformed upwards. Therefore, the interval between the terminals 51 can be kept constant.

  In addition, the second portion 61 of the terminal 51 located at a position other than the top of the plurality of terminals 51 includes a protruding portion 65 protruding sideways. As a result, even the terminal 51 positioned other than the uppermost layer can be supported from above by the upper mold 93.

  Furthermore, the upper mold 93 includes a plurality of upper mold protrusions 94 protruding downward, and the second portion 61 of each terminal 51 is supported from above by each of the upper mold protrusions 94.

  Further, the second portion 61 of the at least one terminal 51 is supported from the side by the upper mold convex portion 94. Therefore, the second portion 61 of each terminal 51 is not displaced or deformed to the side even when receiving a force directed to the side.

  In addition, the manufacturing method of the connector 1 is such that the terminal 51 including the first portion 52 including the contact tip portion 54 formed at one end and the second portion 61 including the board side connection portion 64 formed at the other end is moved up and down. And the first part 52 is attached to the first housing part 11 made of an insulating material, the mold device is closed, and the lower mold 92 and the upper mold 93 are used to A step of forming a cavity covering at least a part of the second portion 61 and supporting the second portion 61 of each terminal 51 from above by an upper mold 93, and filling the cavity with an insulating material, each terminal 51 A step of forming the second housing part 21 integrally with the first housing part 11 by overmolding at least a part of the second part 61.

  Thereby, the connector 1 in which the space | interval between each terminal 51 is kept constant can be manufactured easily and at low cost.

  Next, a second embodiment of the present invention will be described. In addition, about the thing which has the same structure as 1st Embodiment, the description is abbreviate | omitted by providing the same code | symbol. The description of the same operation and the same effect as those of the first embodiment is also omitted.

  FIG. 12 is a perspective view showing a terminal in the second embodiment of the present invention, and FIG. 13 is a three-plane view showing the terminal in the second embodiment of the present invention. In FIG. 13, (a) is a top view, (b) is a side view, and (c) is a back view.

  In the present embodiment, as shown in the figure, the bridging portion 63 of at least one terminal 51 is formed with a protruding portion 65 formed by cutting and raising the lower edge on the rear end side.

  Thus, since the protrusion 65 is formed on the lower side of the belt-shaped bridging part 63, for example, the second protrusion 65b of the second terminal 51b is in contact with or close to the lower end of the second upper mold convex part 94b. At the same time, the side surface of the second upper mold convex portion 94b and the side surface of the second bridging portion 63b can be brought into contact with or close to each other.

  That is, when the protrusion 65 is formed on the lower side of the bridging portion 63, one upper convex portion 94 is simultaneously brought into contact with or close to the protrusion 65 of one terminal 51 from above and from the side to the bridging portion 63. The deformation can be suppressed by one upper mold convex portion 94.

  Since the configuration and operation of other points are the same as those in the first embodiment, description thereof is omitted.

  The present invention is not limited to the above-described embodiment, and various modifications can be made based on the spirit of the present invention, and they are not excluded from the scope of the present invention.

1 is a first perspective view showing a connector in a first embodiment of the present invention. It is a 2nd perspective view which shows the connector in the 1st Embodiment of this invention. It is a five-view figure which shows the connector in the 1st Embodiment of this invention, (a) is a top view, (b) is a side view, (c) is a bottom view, (d) is a front view, (e) FIG. It is a perspective view which shows the terminal in the 1st Embodiment of this invention. It is a three-view figure which shows the terminal in the 1st Embodiment of this invention, (a) is a top view, (b) is a side view, (c) is a rear view. It is a perspective view which shows the state before overmolding the terminal in the 1st Embodiment of this invention. It is a perspective view which shows the state which deleted a part of 1st housing part before overmolding the terminal in the 1st Embodiment of this invention. It is a perspective view which shows the state of the terminal before the metal mold | die assembly in the 1st Embodiment of this invention. It is a perspective view which shows the state of the terminal after the metal mold | die incorporation in the 1st Embodiment of this invention. It is a perspective view which shows the state of the 1st housing part from which the terminal after metal mold | die incorporation in the 1st Embodiment of this invention and one part were deleted. It is the perspective view which shows the state of the 1st housing part from which the terminal after the metal mold | die incorporation in the 1st Embodiment of this invention and one part were deleted, and was the figure which saw through the metal mold | die. It is a perspective view which shows the terminal in the 2nd Embodiment of this invention. It is a three-plane figure which shows the terminal in the 2nd Embodiment of this invention, (a) is a top view, (b) is a side view, (c) is a rear view. It is sectional drawing which shows the manufacturing process of the conventional connector.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Connector 10, 811 Housing 11 1st housing part 12 Top plate part 12a, 13a, 15a Lack | missing part 13 Bottom plate part 14 Front part 15 Back part 16 Side plate part 18, 28 Engagement leg 21 2nd housing part 22 2nd top surface part 23 Second bottom portion 25 Second back portion 31 Fitting opening 32 Substrate side opening 33 Connecting projection 35 Terminal accommodating space 36 Terminal support portion 37 Terminal press-fit hole 41 Upper mold release hole 42 Lower mold release hole 51 Terminal 51a First terminal 51b Second terminal 51c Third terminal 52 First part 53 Contact part 53a First contact part 53b Second contact part 53c Third contact part 54 Contact tip part 55, 56, 893a Convex part 57 Body part 61 Second Part 62 Rise part 63 Bridge part 63a First bridge part 63b Second bridge part 63c Third bridge part 64 Board side connection part 64a First board side connection part 64b Second board side contact Connection part 64c Third substrate side connection part 65 Projection part 65b Second projection part 65c Third projection part 66 Bending part 67 Connection parts 92, 892 Lower mold 93, 893 Upper mold 94a First upper mold convex part 94b Second Upper mold convex portion 94c Third upper mold convex portion 95 Holding hole 96a Inner lower mold convex portion 96b Outer lower mold convex portion 101 Substrate 101a Edge portion 102 Engaging hole 103 Through hole 831 Spacer 851a First terminal row 851b Second Terminal row 891 Holding mold

Claims (7)

(A) a terminal (51) comprising a front part (52) including a front contact part (54) formed at one end and a rear part (61) including a rear contact part (64) formed at the other end;
(B) a connector (1) made of an insulating material and having a housing (10) for holding the terminal (51),
(C) The housing (10) covers at least a part of the first housing part (11) holding the front part (52) of the terminal (51) and the rear part (61) of the terminal (51). A second housing part (21) formed integrally with the first housing part (11) by overmolding with an insulating material,
(D) At least one of the terminals (51) is formed in a portion covered with the insulating material in the rear portion (61) and protrudes in a direction intersecting with the front-rear direction of the terminal (51). A connector (1) comprising a protrusion (65). The terminal (51) is a plurality, and at least a portion of the rear portion (61) covered with the insulating material is arranged in the vertical direction, and the protrusion (65) is arranged before and after the terminal (51). The connector (1) according to claim 1, wherein the projection (65) of each terminal (51) is formed at a different position with respect to the front-rear direction of the terminal (51). . The upper mold (93) of the mold apparatus forming the second housing part (21) includes at least one upper mold convex part (94) projecting downward, and at least the projecting part (65). The connector (1) according to claim 1 or 2, wherein one is supported from above by the upper projection (94). The connector (1) according to claim 3, wherein a rear part (61) of at least one terminal (51) is supported from the side by the upper mold convex part (94). The rear portion (61) includes a bridging portion (63) extending in the front-rear direction of the terminal (51) and connecting the rear contact portion (64) and the front portion (52), and the rear contact portion. (64) extends downward from the rear end of the bridging portion (63), and the protrusion (65) is formed at the upper end of the rear contact portion (64). The connector (1) described in 1. (A) A front part (52) including a front contact part (54) formed at one end, a rear part (61) including a rear contact part (64) formed at the other end, and the rear part (61) A terminal (51) provided with a protrusion (65) protruding in a direction crossing the front-rear direction is arranged so as to overlap in the vertical direction, and the position of the protrusion (65) of each terminal (51) Attaching the front part (52) to the first housing part (11) made of an insulating material such that
(B) The mold apparatus is closed, and a cavity that covers at least a part of the rear portion (61) of each terminal (51) is formed by the lower mold (92) and the upper mold (93), Supporting the protrusion (65) of each terminal (51) from above by the upper mold (93);
(C) Filling the cavity with an insulating material and overmolding at least a part of the rear portion (61) of each terminal (51), thereby making the second housing part (21) the first housing part ( 11) and the process of forming integrally, The manufacturing method of a connector (1) characterized by the above-mentioned. The manufacturing method of the connector (1) according to claim 6, wherein the rear part (61) of at least one terminal (51) is supported from the side by the upper mold convex part (94) of the upper mold (93).

Images