JP6974556B2 - Terminals, connectors and connector manufacturing methods for board connection connectors - Google Patents

Description

The present invention relates to a terminal structure suitable for insert molding (integral molding) of a plurality of terminals and a housing when manufacturing a connector having a housing in which a plurality of terminals are held. Specifically, when manufacturing a connector, each of a plurality of terminals is fixed in the mold, and when the resin, which is an insulator for molding the housing, is poured into the mold, the resin is prevented from flowing into an unintended position. It relates to a terminal structure suitable for covering a part of the terminal as described above.

As a connector in which a plurality of terminals are arranged and held in a housing by insert molding (integral molding) or the like and the substrates are connected, for example, there is a connector disclosed in Japanese Patent Application Laid-Open No. 2017-069133 (Patent Document 1). The connector is a connector on the receptacle side (receptacle connector) connected to a connector on the plug side (plug connector), and includes a rectangular housing in which a plurality of terminals are arranged and held in the longitudinal direction.

The receptacle connector and the plug connector can be provided on a printed wiring board, a flexible flat cable, or the like, respectively. For example, the boards can be connected by fitting the receptacle connector provided on the printed wiring board for surface mounting or the like and the plug connector provided at the end of the flexible flat cable to each other.

Conventionally, a housing of a receptacle connector (or a plug connector) is formed by embedding a plurality of terminals by insert molding. In insert molding, terminals are generally arranged in a direction that can be the longitudinal direction of the housing by a mold, a fixing jig, etc., and then terminals are poured by pouring resin, which is an insulator, into the space defined by the mold. By covering a part of the resin with a resin and finally curing the resin, a housing in which a plurality of terminals are embedded and held is formed. The part of the terminal exposed from the resin of the housing is prevented from flowing into the resin by a mold, a fixing jig, or the like so as not to be covered with the resin. In this way, by controlling the flow of resin on the surface of the terminal with a mold, fixing jig, etc. made based on the design of the housing, in the housing, the part where the surface of the terminal is covered with resin and the resin It can be formed separately from the exposed part.

Japanese Unexamined Patent Publication No. 2017-069133

However, conventional receptacle connectors and plug connectors that connect between boards are very small connectors because they are mounted on boards in small electronic devices such as smartphones and mobile terminals, and the multiple terminals that are their components are also very small. It is small, and it is generally more difficult to form a housing as designed by holding and fixing those terminals with a mold, fixing tool, etc., and by insert molding, as the size of the connector is smaller. For example, if the plurality of terminals embedded in the housing themselves are small, it is not possible to sufficiently cover a part of the terminals exposed from the housing with a mold or a fixing jig when the terminals and the housing are insert-molded. Therefore, it is not possible to prevent the resin from flowing into the part.

In each of the plurality of terminals embedded in the housing of the conventional receptacle connector described in Patent Document 1, a part of the terminals exposed inward from the resin of the housing (a facing portion facing a spring portion having a contact portion with the mating terminal). ) Is flat on both sides. Therefore, when supporting the terminal with a mold or a fixing jig, the flat side surface of the terminal does not have protrusions or the like suitable for supporting, so that there is no gap between the terminal and the fixing jig and the terminal is sufficiently provided. It cannot be supported, and there is a problem that the resin flows through the gap during insert molding and covers the surface of the terminal that is normally exposed from the housing. The gap between the flat side surface of the terminal and the mold, the fixing jig, or the like is caused when the flat side surface of the terminal is distorted due to various factors such as an error in manufacturing the terminal.

In order to solve the above problems, a movable part having a movable contact that is a contact point with the mating terminal and a fixed part facing the movable part and having a fixed contact point that is a contact point with the mating terminal are fixed. In the terminal including the portion and the bottom portion connecting the movable portion and the fixed portion, an inclined portion configured to widen the width of the fixed portion is provided on the side surface between the fixed contact and the bottom portion. When supporting the side surface of the terminal with a mold or a fixing jig, the inclined portion with a wider width of the fixing portion becomes a protrusion suitable for support by the mold or the fixing jig, and the terminal can be sufficiently supported without a gap. , Provide terminals suitable for forming a housing by insert molding.

The terminal according to one embodiment of the present invention is a terminal used for a connector.
A movable part with a movable contact that becomes a contact with the mating terminal of the mating connector,
A fixed portion having a fixed contact facing the movable portion and serving as a contact with the mating terminal, and a fixed portion.
Includes a bottom connecting the movable portion and the fixed portion.
The fixed portion has a pair of inclined portions, and each of the inclined portions is provided on the side surface of the fixed portion on both sides of the fixed portion.
The inclined portion is characterized in that it is formed so as to widen the width of the fixed portion.

As a preferred embodiment of the terminal according to the present invention,
The terminal is curved in a U shape between the bottom portion and the fixed portion and between the bottom portion and the movable portion so that the fixed portion and the movable portion face each other via the bottom portion. Formed,
A wide portion is further included in the side surface of the terminal between the inclined portion and the middle of the bottom portion.

As a preferred embodiment of the terminal according to the present invention, the terminal has a leg portion provided with a mounting portion for mounting on a substrate at an end portion, and a fixed contact portion and a top portion connecting the fixed portion and the leg portion. Including
The leg portion is characterized in that it faces the fixed portion.

A connector according to one embodiment of the present invention includes the terminal and a housing for holding the terminal.
The housing includes a fitting convex portion on the movable portion side of the terminal and a side wall portion on the fixed portion side of the terminal.
The housing is characterized in that at least the bottom back surface of the bottom portion is exposed from an opening provided on the back surface of the housing.

As a preferred embodiment of the connector according to the present invention,
The fixed portion is embedded and supported in the side wall portion, and is characterized in that a surface facing the movable portion and a part of a side surface of the fixed portion are exposed from the side wall portion.

As a preferred embodiment of the connector according to the present invention,
A part of the side surface of the fixed portion exposed from the side wall portion includes a part of the contact side portion which is a side portion of the fixed contact, a part of the inclined portion, and a part of the wide portion. It is characterized by.

As a preferred embodiment of the connector according to the present invention,
It is characterized in that the bottom surface of the flat portion of the bottom and the surface of the resin of the housing around the bottom surface are flush with each other.

As a preferred embodiment of the connector according to the present invention,
The fixed contact projectes toward the movable contact side from the inner wall surface of the side wall portion, and the top portion is flush with the top wall surface of the side wall portion.

As a preferred embodiment of the connector according to the present invention, the housing includes a plurality of the terminals.
The plurality of terminals are arranged at equal intervals along the longitudinal direction of the housing.
The legs and fixing portions of the plurality of terminals are characterized in that facing surfaces are supported by the side wall portions.

The connector manufacturing method according to one embodiment of the present invention includes a step of fixing the terminal to the fixed-side mold with a fixing jig and a step of fixing the terminal to the fixed-side mold.
By covering the fixed-side mold to which the terminal is fixed with a movable-side mold configured to accommodate the terminal inside, the terminal can be put inside the movable-side mold and described. The process of pressing each of the inclined portions of the terminal with the movable side mold,
A step of injecting an insulating resin for forming the housing into the space between the fixed-side mold and the movable-side mold, and
The process of curing the resin and
It is characterized by including a step of removing the movable side mold and the fixed side mold, curing the resin to form the mold, and taking out a housing for holding the terminal.

As a preferred embodiment of the connector manufacturing method according to the present invention, the opening provided on the back surface of the housing of the housing is characterized by being formed by removing the fixing jig from the terminal.

As a preferred embodiment of the connector manufacturing method according to the present invention, in the step of pressing each of the inclined portions of the terminal with the movable side mold, the movable side mold is determined based on the position of each of the inclined portions. It is characterized by positioning in position.

As a preferred embodiment of the connector manufacturing method according to the present invention, the step of pressing each of the inclined portions of the terminal with the movable side mold is a bottom fixing wall provided in the central portion of the movable side mold. A step of pressing the bottom surface of the bottom portion of the terminal and supporting the movable portion of the terminal with a movable portion support wall provided at the end portion of the movable mold is included.
With the movable mold, in the first space between the fixed portion surface of the fixed portion of the terminal and the bottom fixed wall, and in the second space between the bottom fixed wall and the movable portion support wall. Therefore, a second space around the movable portion of the terminal is defined.

Between a movable part having a movable contact that is a contact point with the mating terminal, a fixed part facing the movable part and having a fixed contact that is a contact point with the mating terminal, and a movable part and the fixed part. By providing an inclined portion on the side surface between the fixed contact and the bottom in the terminal including the bottom portion connecting the terminals, the inclined portion is formed or fixed when the side surface of the terminal is supported by a mold or a fixing jig or the like. It becomes a protrusion suitable for support by a jig or the like, can sufficiently support the terminal without a gap, and can prevent the resin of the insulator from flowing into an unintended portion during insert molding.

It is a figure which shows the receptacle connector including the terminal which concerns on one Embodiment of this invention, and the plug connector of the other side. It is sectional drawing of the receptacle connector including the terminal which concerns on one Embodiment of this invention, and the plug connector of the other side. It is a figure which looked at the receptacle connector including the terminal which concerns on one Embodiment of this invention from the side which fits with a plug connector. It is a figure which shows the terminal peripheral part included in the receptacle connector cut out along the line AA in FIG. It is a figure which looked at the terminal peripheral part shown in FIG. 4 from the side view. FIG. 5 is a perspective view of the terminal peripheral portion shown in FIG. 5 as viewed from the side where the plug connector is fitted. It is a perspective view which looked at the terminal peripheral part shown in FIG. 5 from the substrate side. It is a figure which showed only the terminal which concerns on one Embodiment of this invention taken out from the terminal peripheral part shown in FIG. It is a figure which showed only the housing part among the terminal peripheral part shown in FIG. It is a figure which showed only the housing part among the terminal peripheral part shown in FIG. 7. It is a figure which shows the state which supported the lower part of a terminal by a mold at the time of insert molding. It is a figure which shows the state which covered the fixed side mold which supports the lower part of a terminal with another movable side mold from the upper part at the time of insert molding. It is sectional drawing which cut the movable side mold and the terminal along the line BB in FIG. 12, and was seen from above.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, in all the drawings for explaining the embodiment, the same members are in principle the same reference numerals, and the repeated description thereof will be omitted. Moreover, although each embodiment is described independently, it does not exclude the combination of components of each other to form a connector and a terminal.

FIG. 1 shows a connector (receptacle connector) including a terminal according to an embodiment of the present invention and a mating connector (plug connector). The connector of the present invention can be used as an internal component in a small electronic device such as a mobile phone, a smartphone, a digital camera, or a notebook computer. As shown in FIG. 1, in the present invention, the direction in which a plurality of terminals included in the connector are arranged is referred to as a longitudinal direction, and the longitudinal direction is the X1-X2 direction (X-axis direction), which is the longitudinal direction. The direction orthogonal to the (X-axis direction) is called the short direction, the short direction is the Y1-X2 direction (X-axis direction), and the direction orthogonal to the longitudinal direction (X-axis direction) is called the short direction. It is in the Y2 direction (Y-axis direction).

The mating direction of the connector is the Z1-X2 direction (X-axis direction) in the drawing, and the direction orthogonal to the longitudinal direction (X-axis direction) is called the lateral direction, and is the Z2 direction (Z-axis direction). The receptacle connector 100 is fitted with a plug connector 200 which is a mating connector on the Z2 side in the Z-axis direction, and the plug connector 200 is fitted with a receptacle connector 100 which is a mating connector on the Z1 side in the Z-axis direction. , Each is electrically connected.

Regarding the upper and lower sides of the receptacle connector 100 and the receptacle terminal 120, the board side (the side attached to the board) is "bottom" or "back", and the side receiving the plug connector 200 and the plug terminal 220 is "top" or "front". And.

The receptacle connector 100, which is a connector according to an embodiment of the present invention, includes a receptacle housing 110 and a receptacle terminal 120. The size of the receptacle connector 100 according to the embodiment of the present invention is about 1.5 to 3.0 mm in the longitudinal direction (X-axis direction) and about 1.5 to 2.5 mm in the lateral direction (Y-axis direction). , The fitting direction (Z-axis direction) is about 0.5 to 1.0 mm. The receptacle terminal 120, which is a terminal according to an embodiment of the present invention, is made of a metal such as phosphor bronze and is embedded in the first side wall portion 112 in the longitudinal direction (X-axis direction) of the receptacle housing 110 to be a mating terminal. The surface in contact with the plug terminal 220 is exposed from the first side wall portion 112 and held in the receptacle housing 110. The receptacle terminal 120 is provided with a mounting portion 121 for mounting on a substrate at an end portion.

The receptacle housing 110 is made of an insulating resin such as a liquid crystal polymer (LCP) and includes a first side wall portion 112 in the longitudinal direction (X-axis direction) and a second side wall portion 114 in the lateral direction (Y-axis direction). A fitting convex portion 116 extending in the longitudinal direction (X-axis direction) is provided in a central portion surrounded by the first side wall portion 112 and the second side wall portion 114. That is, the receptacle housing 110 includes a fitting convex portion 116 on the movable portion 127 side of the receptacle terminal 120 and a first side wall portion 112 on the fixed portion 125 side of the receptacle terminal 120.

The plug connector 200, which is a mating connector, includes a plug housing 210 and a plug terminal 220 terminal. The size of the plug connector 200 according to the embodiment of the present invention is about 1.0 to 2.5 mm in the longitudinal direction (X-axis direction) and about 1.2 to 2.0 mm in the lateral direction (Y-axis direction). , The fitting direction (Z-axis direction) is about 0.4 to 0.8 mm. The plug terminal 220 is made of a metal such as phosphor bronze and is embedded in the first side wall portion 212 in the longitudinal direction (X-axis direction) of the plug housing 210 to expose the surface in contact with the receptacle terminal 120 from the first side wall portion 212. It is held in the plug housing 210. The plug terminal 220 is provided with a mounting portion 221 for mounting on a board at an end portion. The plug housing 210 is made of an insulating resin such as a liquid crystal polymer (LCP), and includes a first side wall portion 212 in the longitudinal direction (X-axis direction) and a second side wall portion 214 in the lateral direction (Y-axis direction). A fitting recess 216 (see FIG. 2) is provided in a central portion surrounded by the first side wall portion 212 and the second side wall portion 214.

FIG. 2 is a cross-sectional view of the receptacle connector 100 shown in FIG. 1 and the plug connector 200 which is the connector on the other side, cut in the lateral direction (Y-axis direction) from the positions where the receptacle terminal 120 and the plug terminal 220 are located. .. FIG. 2 also shows a substrate not shown in FIG. Here, a printed wiring board, a flexible flat cable, or the like on which a connector is mounted is simply referred to as a "board". The mounting portion 121 of the receptacle terminal 120 is attached to the board 300 by soldering or the like, and the mounting portion 221 of the plug terminal 220 is attached to the board 400 by soldering or the like. In the fitted state of the receptacle connector 100 and the plug connector 200, the fitting convex portion 116 is accommodated in the fitting concave portion 216.

Referring to FIG. 2, the receptacle terminal 120 includes a mounting portion 121 at an end portion on the substrate side, and a leg portion 122 via a portion curved upward (Z2 side in the Z-axis direction) from the mounting portion 121. The leg portion 122 faces the fixed contact portion 124 and the fixed portion 125 with the first side wall portion 112 of the receptacle housing 110 interposed therebetween, and the leg portion 122 and the fixed contact portion 124 and the fixed portion 125 are opposed to each other with the first side wall portion 112. It is connected via a top 123 located at the end.

Referring to FIG. 1 together with FIG. 2, the periphery of the leg portion 122 is completely covered with the resin of the receptacle housing 110 except for the portion adjacent to the top portion 123. That is, the leg portion 122 is embedded in the first side wall portion 112 except for the portion adjacent to the top portion 123, and is held by the receptacle housing 110. The back surface of the leg portion 122, the top portion 123, the fixed contact portion 124, and the fixed portion 125 (the surface opposite to the surface in contact with the mating terminal) is supported by the first side wall portion 112. That is, the leg portion 122 and the fixing portion 125 of the receptacle terminal 120 are supported by the first side wall portion 112 on the facing surfaces thereof.

In the fixed contact 124, the portion of the fixed portion 125 adjacent to the top 123 is projected to the movable contact 128 side (Y2 side if the fixed portion 125 is on the Y1 side, Y1 side if the fixed portion 125 is on the Y2 side). It is formed. The fixed contact 124 abuts on the outer leg portion 225 and is electrically connected in a fitted state with the plug terminal 220 which is a mating terminal. The fixed contact 124 and the fixed portion 125 are fixed by being supported by the first side wall portion 112 on the surface opposite to the surface in contact with the mating terminal so as not to move when mating with the mating terminal. ..

The receptacle terminal 120 includes a bottom 126 connected to the fixed portion 125 and the movable portion 127. The bottom portion 126 extends in the lateral direction (Y-axis direction) of the receptacle connector 100 and is connected to the fixed portion 125 and the movable portion 127 via a portion curved at a right angle. A part of the surface of the bottom 126 on the substrate side (the surface opposite to the surface receiving the mating terminal (Z2 side surface) (Z1 side)) is supported by the resin near the fitting convex portion 116 of the receptacle housing 110.

The movable portion 127 is a free end without touching the side wall of the fitting convex portion 116, includes a movable contact 128 formed by projecting the periphery of the end toward the fixed contact 124, and is an end more than the movable contact 128. Includes a movable end 129. When the movable portion 127 receives and fits the plug terminal 220 which is the mating terminal, the movable portion 127 is elastically pushed toward the fitting convex portion 116 and deformed, and in the fitted state, the movable contact 128 is the plug terminal 220 of the plug terminal 220. It abuts on the inner leg 222 and is electrically connected.

The plug terminal 220 is provided with a mounting portion 221 at an end portion on the board side, and is provided with an inner leg portion 222 via a portion curved downward from the mounting portion 221. The inner leg portion 222 faces the outer leg portion 225 with the first side wall portion 212 of the plug housing 210 interposed therebetween, and the inner leg portion 222 and the outer leg portion 225 are located at the end of the first side wall portion 212. It is connected via the top 223. The back surfaces of the inner leg portion 222, the top portion 223, the contact point 224, and the outer leg portion 225 (the surface opposite to the surface in contact with the mating terminal) are supported by the first side wall portion 212.

The contact 224 is formed by projecting the portion of the outer leg portion 225 adjacent to the top portion 223 to the outside, and is electrically connected to the fixed portion 125 in a fitted state with the receptacle terminal 120 which is a mating terminal. .. The inner leg portion 222, the top portion 223, the contact point 224, and the outer leg portion 225 are fixed by the first side wall portion 212 so as not to move during fitting with the mating terminal.

FIG. 3 is a view of the receptacle connector including the terminal according to the embodiment of the present invention as viewed from the upper side (the side where the plug connector is fitted). In FIG. 3, a reference numeral “120” is attached to a part of the plurality of terminals in the receptacle connector 100, and the reference numerals of other terminals having the same shape are omitted. The receptacle housing 110 includes a plurality of receptacle terminals 120, and the plurality of receptacle terminals 120 are arranged at equal intervals along the longitudinal direction (X-axis direction) of the receptacle housing 110.

The peripheral portion of the terminal cut out along the line AA in FIG. 3 is shown in FIGS. 4 to 7. FIG. 4 is a view of the terminal peripheral portion cut out along the lines AA from above, and FIG. 5 is a view of the terminal peripheral portion viewed from the side surface (X-axis direction). FIG. 6 is a perspective view of the terminal peripheral portion cut out along the line AA from above (Z2 side in the Z-axis direction), and FIG. 7 is a perspective view of the terminal peripheral portion downward (Z1 side in the Z-axis direction). ) Is a perspective view.

As shown in FIGS. 3 to 6, the movable end portion 129 of the receptacle terminal 120 is housed in the space formed in the fitting convex portion 116 of the receptacle connector 100, and is fitted with the plug terminal 220 which is a mating terminal. In the state, the movable portion 127 is deformed and the movable end portion 129 can move to the fitting convex portion 116 side. As shown in FIG. 4, the receptacle terminal 120 is symmetrical when viewed from the plug connector 200 side (Z2 side) in the mating direction (Z-axis direction), and the configuration on one side is naturally the other. It is the same as the configuration on one side of.

As shown in FIGS. 5 and 7, the fixing portion 125 of the receptacle terminal 120 is embedded and supported in the first side wall portion 112, and the fixing portion surface 125A and the fixing portion 125 of the fixing portion 125 facing the movable portion 127 are supported. A part of the side surface 125B (the side surface between the fixed contact 124 and the bottom 126) is exposed from the first side wall portion 112. That is, the fixed portion side surface 125B of the fixing portion 125 is not completely covered with the resin of the receptacle housing 110 up to the plate thickness of the receptacle terminal 120. The fixing portion 125 is supported and fixed to the first side wall portion 112 in a state where a part of the fixing portion surface 125A and the fixed portion side surface 125B is exposed from the inner wall surface 112A of the first side wall portion 112.

As shown in FIGS. 4 to 7, the fixed contact 124 of the receptacle terminal 120 protrudes toward the fitting convex portion 116 from the inner wall surface 112A of the first side wall portion 112, and the contact side surface 131 of the fixed contact 124 is the first. 1 It is exposed from the side wall portion 112. Referring to FIG. 7, the housing back surface 110A, which is the surface of the receptacle housing 110 facing the substrate, is provided with an opening 140, and at least the bottom back surface 126B, which is the back surface of the bottom 126 of the receptacle terminal 120, and the curved portion around the bottom surface 126B. Is exposed through the opening 140.

FIG. 8 is a diagram showing only the terminals according to the embodiment of the present invention taken out from the terminal peripheral portion shown in FIG. In addition to FIG. 8, as shown in FIGS. 4 to 6, the fixing portion 125 includes an inclined portion 130 at a position between the fixing contact 124 and the bottom portion 126 on the fixing portion side surface 125B. The inclined portion 130 is formed so as to widen the width of the fixed portion 125. The fixed portion 125 has a pair of inclined portions 130, and each of the inclined portions 130 is provided on the fixed portion side surfaces 125B on both sides of the fixed portion 125. That is, the fixed portion 125 includes one inclined portion of the pair of inclined portions 130 on the fixed portion side surface 125B on one side, and the other inclined portion on the fixed portion side surface 125B on the other side.

The receptacle terminal 120 is located between the bottom portion 126 and the fixed portion 125 so that the fixed portion 125 and the movable portion 127 face each other via the bottom portion 126, and is upward (Z2) in the fitting direction (Z-axis direction) with respect to the bottom portion 126. By bending it to the side) and bending the space between the bottom 126 and the movable part 127 upward (Z2 side) in the fitting direction (Z-axis direction) with respect to the bottom 126, the fixed portion 125 of the receptacle terminal 120 is similarly bent. The portion from the bottom 126 to the movable portion 127 is formed in a U shape. The receptacle terminal 120 has a wide portion 132 on a terminal side surface between the inclined portion 130 and the bottom portion 126 (a curved portion between the inclined portion 130 and the bottom portion 126 and a side surface of a peripheral portion thereof). That is, the wide portion 132 is formed between the inclined portion 130 of the fixed portion 125 and the middle of the side surface of the bottom portion 126 via the curved portion.

As shown in FIG. 5 or 6, a part of the fixed portion side surface 125B of the fixed portion 125 is exposed from the first side wall portion 112. A part of the contact side surface 131, a part of the inclined part 130 provided on the fixed part side surface 125B of the fixing part 125, and a part of the wide part 132 are included in a part of the fixing part side surface 125B of the fixing part 125. include. The bottom surface 126A, which is the surface of the flat portion of the bottom 126A, is flush with the resin surface of the receptacle housing 110 around the bottom surface 126A. Further, the fixed contact 124 protrudes toward the movable contact 128 from the inner wall surface of the first side wall portion 112, and the top portion 123 is flush with the top wall surface 112B of the first side wall portion 112.

9 and 10 are diagrams showing only the housing portion of the terminal peripheral portions shown in FIGS. 6 and 7, respectively. In the receptacle housing 110 formed by insert molding with the receptacle terminal 120, the resin of the insulator surrounds the receptacle terminal 120, and the housing portion supporting the receptacle terminal 120 is an inclined inner wall in contact with the inclined portion 130 of the receptacle terminal 120. A portion 141, a wide inner wall portion 142 in contact with the wide portion 132, and a support top portion 143 for supporting the back surface (plane on the substrate side) of the top portion 123 are included. Further, on the housing back surface 110A, which is the back surface of the receptacle housing 110, a support mounting portion 144 that supports the mounting portion 121 is provided in addition to the bottom back surface 126B of the bottom portion 126 of the receptacle terminal 120 and the opening 140 that exposes the peripheral portion thereof. include.

FIG. 11 is a diagram showing a state in which the lower portion of the receptacle terminal is supported by a mold during insert molding. In order to form a receptacle housing 110 in which a plurality of receptacle terminals 120 are arranged in two rows at equal intervals in the longitudinal direction (X-axis direction) by insert molding, the receptacle terminals 120 are made of gold by a fixing jig 510 of a fixed-side mold 500. Fixed to the mold. The fixing jig 510 supports and fixes the bottom back surface 126B of the bottom 126 of the receptacle terminal 120 and the curved portion around the bottom surface 126B. The opening 140 formed in the housing back surface 110A of the receptacle housing 110 shown in FIGS. 7 and 10 is a trace of removing the fixing jig 510 after insert molding. That is, the opening 140 is a hole formed when the mold, fixing jig, or the like that fixed the receptacle terminal 120 is removed from the receptacle terminal 120 after the insert molding is completed.

FIG. 12 shows a state in which another movable mold is covered from the upper mold (Z2 side in the Z axis direction) on the fixed mold that supports the lower portion (Z1 side in the Z axis direction) of the terminal during insert molding. It is a figure. The movable side mold 600 is configured to accommodate the receptacle terminal 120 fixed to the fixed side mold 500 by the fixed jig 510 inside. Then, in the movable side mold 600, the receptacle terminal 120 is put inside the movable side mold 600 by covering the fixed side mold 500 in which the receptacle terminal 120 is fixed by the fixed jig 510, and the leg portion of the receptacle terminal 120 is inserted. A space around the 122, between the leg portion 122 and the fixed portion 125, and between the bottom back surface 126B and the fixed side mold 500 can be defined. For example, between the leg portion 122 and the fixed portion 125 and on the outside of the leg portion 122 (Y2 side in FIG. 12), the first resin filling space 520 and the second resin filling space 530 are provided by the movable side mold 600, respectively. can. At this time, each of the inclined portions 130 of the receptacle terminal 120 is pressed by the movable side mold 600.

The movable mold 600 supports the movable portion 127 at the end portion of the movable portion 127 side (Y1 side in FIG. 12) of the receptacle terminal 120 to prevent resin from entering during insert molding. It has a wall 610. Further, the movable side mold 600 abuts on the bottom surface 126A of the bottom 126, and has a bottom fixing wall 612 for sandwiching the bottom 126 with the fixing jig 510 for fixing the bottom back surface 126B in the central portion. Have. Further, the movable mold 600 has an outer wall portion 614 on the leg portion 122 side (Y2 side in FIG. 12) that defines the second resin filling space 530 of the leg portion 122.

When the side surface of the receptacle terminal 120 is supported by the movable side mold 600, the pair of inclined portions 130 of the receptacle terminal 120 become protrusions suitable for support by the movable side mold 600, and sufficiently support the receptacle terminal 120 without a gap. can do. That is, when the movable side mold 600 is moved from the top (Z2 side) to the bottom (Z1 side) at the time of insert molding, and the movable side mold 600 is put on the fixed side mold 500, the movable side mold is placed. In the mold 600, the pair of inclined portions 130 of the receptacle terminal 120 can be firmly pressed as protrusions, and the receptacle terminal 120 can be securely fixed to the fixed-side mold 500. Further, the movable side mold 600 can position the movable side mold 600 at a fixed position based on each position of the inclined portions 130 by pressing the pair of inclined portions 130 of the receptacle terminal 120, and is movable. It is possible to prevent in advance the gap between the mold and the terminal that may occur due to the displacement of the side mold 600.

When forming the receptacle housing 110 including one or more receptacle terminals 120 by insert molding, first, the longitudinal direction (X-axis direction) of the receptacle housing 110 is formed by a fixed side mold 500, a movable side mold 600, a fixed jig 510, or the like. ), Arrange the terminals in the direction that can be. Next, by pouring a fluid insulating resin into the space defined by the mold (first resin filling space 520, second resin filling space 530, etc.), the peripheral portion of the top 123 of the receptacle terminal 120 is removed. The entire circumference of the leg portion 122 can be covered with resin. Further, the top 123 of the receptacle terminal 120, the fixed surface 125A of the fixed portion 125, a part of the fixed portion side surface 125B, the bottom surface 126A, and the movable portion 127 are exposed from the resin, and the other parts are covered with the resin. Can be done. Finally, after the resin is cured, the movable mold 600 and the fixed mold 500 can be removed, and the housing formed by curing the resin can be taken out. Finally, it is possible to form a receptacle housing 110 in which a plurality of receptacle terminals 120 are embedded and held.

In the receptacle terminal 120, the portion exposed from the resin of the receptacle housing 110 is a movable side metal around the curved portion of the contact side surface 131 of the fixed contact 124, the fixed portion side surface 125B of the fixed portion 125, the inclined portion 130, and the wide portion 132. By pressing and covering with the mold 600 and covering the peripheral portion of the mounting portion 121 with the fixed side mold 500, it is possible to prevent the resin from flowing in during insert molding. In particular, the inclined portion 130 provided on the fixed portion side surface 125B of the fixed portion 125 of the receptacle terminal 120 functions as a protrusion suitable for support by a mold or a fixing jig, and is compared with the case where the inclined portion is not provided on the side surface. The force in the vertical direction (Z1 side in the Z-axis direction) that presses the receptacle terminal 120 against the fixing jig 510 by the movable mold 600 is also transmitted to the inclined portion 130 of the receptacle terminal 120, and the receptacle terminal 120 (particularly, the fixing portion 125). ) Can be covered without gaps.

In this way, by using the inclined portion 130 of the receptacle terminal 120 by the movable side mold 600 and sandwiching the receptacle terminal 120 with the fixed side mold 500, the fixed portion side surface 125B of the receptacle terminal 120 is supported without a gap. It is possible to appropriately prevent the resin from flowing into the surface of the receptacle terminal 120 and a part of the fixed portion side surface 125B of the fixing portion 125, and after insert molding, for example, the receptacle as shown in FIGS. 3 to 6 The housing 110 can be formed.

The gap between the flat side surface of the terminal and the mold or the fixing jig may be caused when the flat side surface of the terminal is distorted due to various factors such as manufacturing error of the terminal. By providing the inclined portion 130 on the side surface of the receptacle terminal 120 which is the terminal according to the embodiment of the present invention, the force pushed in the vertical direction by the movable side mold 600 is transmitted to the inclined portion 130, and the support is stronger than before. Therefore, even if the flat side surface of the terminal is distorted, the gap between the side surface and the mold caused by the distortion can be filled. In this way, it is possible to appropriately prevent the resin from flowing into the surface of the receptacle terminal 120 or a part of the fixed portion side surface 125B of the fixed portion 125.

FIG. 13 is a cross-sectional view taken from above by cutting the mold and the terminal along the line BB in FIG. The fixed portion side surface 125B of the fixed portion 125 of the receptacle terminal 120 is in contact with the side surface of the groove portion formed in a concave shape on the surface of the bottom fixing wall 612 of the movable mold 600, and the inclined portion 130 is formed according to the shape. It is supported without a gap by the groove portion of the bottom fixing wall 612 of the movable side mold 600. A first space 616 is formed between the fixed portion surface 125A of the fixed portion 125 of the receptacle terminal 120 and the bottom fixing wall 612 facing the fixed contact 124 protruding from the fixed portion 125, but the first space 616 is the periphery. Is closed without a gap by the movable side mold 600 (bottom fixing wall 612), and is a space in which resin does not flow during insert molding. By closing the gap in this way, a part of the fixed portion surface 125A and the fixed portion side surface 125B of the fixed portion 125 of the receptacle terminal 120 can be exposed from the resin of the receptacle housing 110.

A second space 618 is also formed between the movable portion 127 and the bottom fixing wall 612, but the periphery of the second space 618 is closed without a gap by the movable portion support wall 610 and the bottom fixing wall 612, and the insert molding is performed. It is a space where the resin does not flow. By closing the gap in this way, the movable portion 127 can be exposed from the resin of the receptacle housing 110. The space between the fixed portion 125 and the leg portion 122 is the first resin filling space 520, which is a space for filling the resin, and the space between the leg portion 122 and the outer wall portion 614 is similarly filled with the resin. It is a second resin filling space 530 which is a space for this.

As described above, in the present invention, the individual embodiments of the present invention are not independent, and can be appropriately implemented in combination with each other.

The connector according to the present invention can be used for applications such as connecting substrates with a flat cable in electronic devices such as smartphones and mobile phones that transmit electric signals at high speed.

100 Receptacle connector 110 Receptacle housing 110A Housing back surface 112 First side wall 112A Inner wall surface 112B Top wall surface 114 Second side wall 116 Fitting convex part 120 Receptacle terminal 121 Mounting part 122 Leg part 123 Top part 124 Fixed contact 125 Fixed part 125A Fixed part Surface 125B Fixed side 126A Bottom surface 126A Bottom surface 126B Bottom back surface 127 Movable part 128 Movable contact 129 Movable end 130 Inclined 131 Contact side 132 Wide 140 Opening 141 Inclined inner wall 142 Wide inner wall 134 Support top 144 Support mounting 200 Plug connector 210 Plug housing 212 1st side wall 214 2nd side wall 216 Fitting recess 220 Plug terminal 221 Mounting part 222 Inner leg 223 Top 224 Contact 225 Outer leg 300 Board 400 Board 500 Fixed side mold 510 Fixed jig 520 First resin filling space 530 Second resin filling space 600 Movable side mold 610 Movable part support wall 612 Bottom fixing wall 614 Outer side wall part 616 First space 618 Second space

Claims (6)

And including fitting a solid tough, and the fixed contact which protrudes from the surface of the fixing portion,
The housing holding the metal fittings and
Including
The fixed portion has a pair of inclined portions, and each of the inclined portions is provided on the side surface of the fixed portion on both sides of the fixed portion.
The inclined portion is formed in an inclined shape so as to make the width of the fixed portion wider than the portion where the fixed contact is formed.
The fixed portion is wider than the portion where the fixed contact is formed .
The housing has a side wall for holding the metal fitting.
At least a part of the fixed contact and the fixed portion is embedded in the side wall portion.
The fixed contact, a part of the side surface of the fixed portion, and a part of the inclined portion were exposed from the side wall portion.
A connector featuring . A metal fitting including a fixed portion, a fixed contact protruding from the surface of the fixed portion, and a leg portion,
The housing holding the metal fittings and
Including
The fixed portion has a pair of inclined portions, and each of the inclined portions is provided on the side surface of the fixed portion on both sides of the fixed portion.
The inclined portion is formed in an inclined shape so as to make the width of the fixed portion wider than the portion where the fixed contact is formed.
The fixed portion is wider than the portion where the fixed contact is formed.
The leg and the fixed contact are connected via the top.
The fixed contact is formed by projecting a part of the fixed portion adjacent to the top .
The housing has a side wall for holding the metal fitting.
At least a part of the fixed contact and the fixed portion is embedded in the side wall portion.
The fixed contact, a part of the side surface of the fixed portion, and a part of the inclined portion were exposed from the side wall portion.
A connector featuring . The metal fittings
A movable portion having a movable contact facing the fixed portion and serving as a contact point with the mating terminal of the mating connector,
A terminal including a bottom portion connecting the fixed portion and the movable portion.
The connector according to claim 1 or 2, wherein the end of the movable portion is a free end that is not held by the housing. The connector according to any one of claims 1 to 3, wherein at least a part of the inclined portion is visible from the fitting direction. A connector manufacturing method for manufacturing the connector according to any one of claims 1 to 4.
The process of fixing the metal fittings to the fixed side mold with a fixing jig,
By covering the fixed-side mold to which the metal fitting is fixed with a movable-side mold configured to accommodate the metal fitting inside, the metal fitting can be put inside the movable-side mold and described. The process of pressing each of the inclined portions of the metal fitting with the movable side mold,
A step of injecting an insulating resin for forming the housing into the space between the fixed-side mold and the movable-side mold, and
The process of curing the resin and
The Remove the movable mold and the fixed mold, shaped by curing the resin, the connector manufacturing method characterized by comprising the step of retrieving the housing for holding the bracket. The fifth aspect of claim 5, wherein the step of pressing each of the inclined portions of the metal fitting with the movable side mold is to position the movable side mold at a fixed position with reference to each position of the inclined portion. Connector manufacturing method.

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