JP5112383B2 - Modular plug - Google Patents

Description

  The present invention relates to a modular plug that is detachably fitted to a modular jack in a state where a plurality of electric wires are connected.

  As such a modular plug, for example, a plug described in Patent Document 1 is known. The modular plug of Patent Document 1 includes an insulating device in which a plurality of seating portions each having a groove shape or a hole shape for holding an electric wire (cable) covered with a sheath is provided on the upper surface and the lower surface, and the insulating device. A first housing provided on the upper surface side of the device and a second housing provided on the lower surface side of the insulating device. The first housing and the second housing are attached to the insulating device so as to be pivotable between an open position spaced from the insulating device and a closed position proximate to the insulating device.

  The seating portions of the insulating device are arranged in a row in the width direction of the insulating device on the upper surface and the lower surface of the insulating device, respectively, and the first and second housings are on the side facing the insulating device. A plurality of terminals that are press-contacted with the electric wires are arranged and held on the surface of the surface at positions corresponding to the seating portions of the insulating device.

  In the modular plug having such a configuration, after the electric wires are arranged on the seating portions of the upper surface and the lower surface of the insulating device in a state where the first and second housings are in the open position, the first housing and the second housing are closed. The plurality of terminals held in the first and second housings are respectively inserted into the corresponding electric wire coatings, pressed against the core wires, and electrically connected to the electric wires.

JP 2008-53234 A

  In the modular plug of Patent Document 1, since it is necessary to rotate both the first and second housings to the closed position in order to connect the electric wire and the terminal in pressure contact, all the terminals are collectively processed, that is, It cannot be pressed against the electric wire by a single rotation operation. Further, the modular plug has first and second housings on the upper surface and lower surface sides of the insulating device, respectively, and the modular plug is increased in size by the necessity of a total of two housings. Further, since the first and second housings open in opposite directions, a large space is required for the pressure contact operation.

  Therefore, in order to press all the terminals to the electric wire by one rotation operation, a housing is provided only on one surface side of the insulating device, and all the terminals are arranged and held in a row in the width direction of the housing and insulated. If the seating portions are arranged in a line corresponding to the terminals on one surface of the device, the number of the terminals and the seating portion is doubled, and the insulating device and the housing, and thus the modular plug, are enlarged in the width direction.

  In view of such circumstances, an object of the present invention is to provide a modular plug capable of press-contacting all terminals and electric wires together while avoiding an increase in size.

Modular plug according to the present invention is a modular plug which is fitted to be evacuation to a modular jack in a state where a plurality of electric wires are connected, a plurality of which extends in the fitting extraction direction serving longitudinal direction of the modular plug A plurality of terminals in which the electric wire is press-connected in a direction perpendicular to the front-rear direction, and a terminal row arranged in the width direction of the modular plug in a direction perpendicular to both the front-rear direction and the pressure-contact direction of the electric wire A housing for arranging and holding the front row and the rear row of terminal rows so as to be formed at two positions in the front-rear direction, and an open position and housing in which the plurality of electric wires are arranged and held so that the electric wires can be mounted in a state separated from the housing And an electric wire holding body movable between a closed position where the electric wire is brought into pressure contact with the terminal.

In such a modular plug, in the present invention , the modular plug includes a substrate that is held in a housing and to which the plurality of terminals are connected, and the housing is a terminal of each terminal row on the side facing the electric wire holder. The pressure contact blade extends toward the wire holder in the pressure contact direction and holds the terminal at a position where the wire pressure contact portion of the pressure contact blade forms two steps in the pressure contact direction. The connection portion provided on the opposite side to the wire pressure contact portion in the pressure contact direction and extending in the pressure contact direction and connected to the substrate is in the same position in the pressure contact direction, and the wire holder is in the closed position, Wire holding portions for holding the wires are arranged in two stages in the pressure contact direction corresponding to the positions of the wire pressure contact portions of the terminals of each terminal row, and correspond to the wire pressure contact portions of the terminals in the front row. One stage of the wire holder is closed It is formed as an electric wire holding hole that extends in the front-rear direction and allows the electric wire to be inserted in the longitudinal direction at the open position. The electric wire holding hole has an abutting wall portion at the front end and an electric wire insertion at the rear end. It has a mouth and is formed so that the inner diameter decreases toward the front in the insertion direction of the electric wire. The wire holding groove is formed as an electric wire holding groove extending in the front-rear direction at a position closer to the housing than the one step and opening toward the housing side, and the electric wire holding groove is formed inside the electric wire holding groove. It is characterized in that at least a pair of holding projections projecting from the wall surface are formed .

In this way, by arranging the terminals and the electric wire holding portions in steps in the press-contact direction, even if they are at the same position in the width direction, the plural terminals are arranged while being shifted in the front-rear direction, and the plural electric wires are made to correspond to the terminals. Thus, it is possible to arrange them by shifting in the front-rear direction. As a result, all terminals are held on one side of the housing, and all wires are held on the wire holding body provided on the one side. Therefore, the wire corresponding to each terminal row is moved at the position of the wire pressure contact portion shifted in steps in the pressure contact direction by one operation of moving the wire holding body holding the wire from the open position to the closed position. It is pressure connected to the terminals of the row.
Also, by providing an abutting wall portion in the electric wire holding hole formed as the electric wire holding portion in one stage, when the electric wire is inserted into the electric wire holding hole, until the front end of the electric wire comes into contact with the wall portion The electric wire can be easily positioned by inserting the electric wire.

  The terminals in any terminal row that are adjacent to each other in the front-rear direction are such that the rear row terminals are located in front of the front row terminals so that the wire pressure contact portions of the rear row terminals are located further in the pressure contact direction than the wire pressure contact portions of the front row terminals. Also, the distance from the wire pressure contact part to the connection part can be set short.

  When the connection parts of the terminals of each terminal row are in the same position in the pressure contact direction, each terminal row is set by setting the distance from the wire pressure contact part to the connection part of the rear row terminals shorter than that of the front row terminals. The electric wire pressure contact portions of the terminals can be shifted from each other in the pressure contact direction. As a result, the electric wire corresponding to each terminal row can be press-connected to the terminal of the corresponding terminal row by one operation of the electric wire holder.

  It is preferable that the terminal has an abutting portion that abuts the housing in the press-contact direction on the held portion held by the housing. When the electric wire holder is brought to the closed position, a force in the direction of the pressure contact acts on the terminal along with the pressure contact with the wire. By providing the contact portion on the held portion of the terminal, the contact portion of the terminal contacts the corresponding surface of the housing. Accordingly, the force in the pressure direction is supported by the housing, and the force transmitted to the connection portion between the terminal connection portion and the corresponding circuit portion can be reduced accordingly. As a result, the connection state between the terminal and the corresponding circuit unit can be maintained satisfactorily.

  As described above, in the present invention, the wire pressure contact portions of the terminals of the plurality of terminal rows are shifted from each other so as to form a step in the pressure contact direction of the wire, and the wire holding portion of the wire holder is the wire pressure contact portion. Corresponding to the position, it is arranged in a row in the pressure-contact direction. In this way, by arranging the terminals and the electric wire holding portions in steps in the press-contact direction, the number of terminals arranged in the width direction of the housing and the number of electric wires arranged in the width direction of the electric wire holder are not doubled. All the terminals can be held on one surface of the housing, and all the electric wires can be held on the electric wire holder provided on the one surface side. Therefore, a single operation of moving the wire holding body holding the wires from the open position to the closed position presses all the wires, that is, the number of wires doubled by the number of steps of the wire holding portion, to the terminal at once. And can be connected to the terminal.

  Further, since the electric wire holding body only needs to be provided on one side of the housing, the modular plug can be reduced in size, and the space required when the electric wire holding body is in the open position is also reduced. You only need to secure it on the side. Moreover, since all the terminals and electric wires are held in steps as described above, it is possible to avoid the housing and the electric wire holding body and thus the modular plug from being enlarged in the width direction.

It is the perspective view of the modular plug which concerns on embodiment, (A) is the figure seen from diagonally upward, (B) is the figure which turned the modular plug shown by (A) upside down. It is a figure which shows the assembly process of a 1st housing, a 2nd housing, and a board | substrate. It is a top view of the board | substrate of FIG. It is sectional drawing of the modular plug of FIG. 1 (A), (A) is IVA-IVA sectional drawing, (B) is IVB-IVB sectional drawing, (C) is IVC-IVC sectional drawing. It is VV sectional drawing of the modular plug of FIG. 1 (A). It is a figure which shows an electric wire holding body, (A) is a top view, (B) is the figure seen from back. 6A is a sectional view taken along the line VIIA-VIIA in FIG. 6A, FIG. 6B is a sectional view taken along the line VIIB-VIIB in FIG. 6A, and FIG. 6C is a sectional view taken along the line VIIC-VIIC in FIG. FIG. It is the perspective view which looked at the modular plug holding an electric wire from diagonally upward, (A) is a perspective view which shows the state which has an electric wire holder in an open position, (B) is an electric wire holder of (A) in a closed position. FIG. 7 is a perspective view showing the brought state. It is sectional drawing of the modular plug of FIG.8 (B), (A) is IXA-IXA sectional drawing, (B) is IXB-IXB sectional drawing. It is sectional drawing which shows the fitting state of the modular plug of FIG. 1 (A), and a modular jack.

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

  1A and 1B are perspective views of a modular plug according to the present embodiment, in which FIG. 1A is a view seen from above, and FIG. 1B is a view in which the modular plug shown in FIG. The modular plug 1 according to this embodiment is inserted into a modular jack (not shown) from the front end, that is, from the left end in FIG. 1 (A) with a plurality of electric wires (not shown) connected thereto. Mates with. The electric wire is formed by covering a metal core wire with a synthetic resin coating. The plurality of electric wires are arranged in two upper and lower stages, and are arranged in the width direction of the modular plug 1 at each stage and connected to the modular plug 1. The electric wire is covered with a net-like shielded wire (not shown) in a state where a plurality of wires are bundled, and further, the shielded wire is covered with a jacket (not shown) to form a single cable (not shown). )).

  The modular plug 1 includes a first housing 10 and a second housing 20 that are assembled and joined together to form a housing body, an electric wire holder 30 that is attached to the second housing 20 from above in FIG. A metal shell 40 which is attached to the second housing 20 from below in FIG. 1A and covers the housing main body, a substrate 50 which will be described later sandwiched between the first housing 10 and the second housing 20, and the substrate 50 and a plurality of metal terminals 60 and 70 to be described later.

  FIG. 2 is a diagram illustrating an assembly process of the first housing 10, the second housing 20, and the substrate 50. In the same figure, the state decomposed | disassembled into the 1st housing 10, the 2nd housing 20, and the board | substrate 50 is shown. In the figure, the direction toward the left is the front in the fitting direction of the modular plug 1 with respect to the modular jack. FIG. 3 is a plan view of the substrate 50 of FIG. FIG. 4A is an IVA-IVA cross-sectional view of the modular plug 1 of FIG. 1A and shows a cross section at a position of a locking piece described later in the front-rear direction. FIG. 4B is a cross-sectional view of the modular plug 1 taken along IVB-IVB, and shows a cross section at the position of an immersion locked portion described later in the front-rear direction. FIG. 4C is a cross-sectional view of the modular plug 1 taken along IVC-IVC, showing a cross section at a position of a gripped portion described later in the front-rear direction. FIG. 5 is a V-V cross-sectional view of the modular plug 1 of FIG. 1 (A), showing a cross-section at a plate surface position of a plate-like terminal, which will be described later, at the intermediate portion in the width direction of the modular jack. .

  The first housing 10 is made of an electrical insulator and has a plate-like portion 11 having a substantially rectangular horizontal plate surface extending in the front-rear direction (left-right direction in FIG. 2) as shown in FIG. ing. The plate-like part 11 is formed as a narrow part 11A whose rear end side part is narrower than the width of the other part in front thereof (the dimension in the short direction of the plate-like part 11). From both side edges of the plate-like portion 11 extending in the front-rear direction, leg-shaped shaft restricting portions 12 extend upward at positions slightly closer to the front than the center portion in the front-rear direction. The shaft restricting portion 12 has a plate shape with a plate surface perpendicular to the width direction of the first housing 10. As will be described later, the shaft restricting portion 12 is a portion for restricting the rearward movement of the shaft portion of the electric wire holder 30.

  A plate-like locking piece 13 extends upward from the side edge at a substantially central position in the front-rear direction of both side edges of the plate-like part 11, that is, at a position behind the shaft restricting part 12. The locking piece 13 is shorter in the vertical direction than the shaft restricting portion 12. The locking piece 13 has a plate surface perpendicular to the width direction of the plate-like portion 11 like the shaft restricting portion 12, and can be elastically bent in the width direction. At the upper end of the side plate surface, there is a locking claw portion 13A that extends in the front-rear direction and protrudes outward in the width direction.

  A plate-like rear locking piece 14 extends upward from both side edges of the narrow portion 11A of the plate-like portion 11. The rear locking piece 14 is shorter in the vertical direction than the locking piece 13. The rear locking piece 14 has a plate surface perpendicular to the width direction of the plate-like portion 11 like the shaft restricting portion 12 and the locking piece 13, and can be elastically bent in the width direction. At the upper end of the plate surface on the outer side in the width direction, there is a rear locking claw portion 14A that extends in the front-rear direction and protrudes outward in the width direction.

  A flexible lock piece 15 extending obliquely downward from the front end position on the lower surface of the plate-like portion 11 is provided. A first slit 15A-1 penetrating in the front-rear direction is formed in a base portion 15A of the lock piece 15, that is, a portion where the lock piece 15 and the plate-like portion 11 are connected. The first slit 15A-1 has an elongated shape in the width direction, and a forwardly extending piece of a metal shell 40 described later can be inserted therethrough. As is often seen in FIG. 1B, the longitudinal direction of the lock piece 15, that is, the rear side portion in the front-rear direction is narrower than the front side portion, and when the modular jack 1 is pulled out, FIG. It is formed as an operation portion 15B that receives a downward pressing operation in B).

  Step portions 15C are formed at both ends in the width direction at the transition portion from the front side portion to the operation portion 15B, and the rear surface of the step portion 15C corresponds to the modular jack when the modular plug 1 and the modular jack are fitted. The surface is locked in the fitting direction. Moreover, the upper surface of the width direction both ends side part in the front-back direction intermediate position of the lock piece 15 shown by FIG. 1 (B) is formed as to-be-pressed part 15D. In the middle of fitting the modular plug 1 to the modular jack, the pressed portion 15D is pressed downward in FIG. 1B by the pressing portion provided on the modular jack, and the lock piece 15 is elastically displaced downward. It is supposed to be.

  As shown in FIG. 2, a bottomed plate terminal recess 16 is formed in the front end region of the upper surface of the plate portion 11 so as to open upward at a position corresponding to a plate terminal 60 described later. In the rear end region, a bottomed pressure contact terminal recess 17 that opens upward is formed at a position corresponding to a pressure contact terminal 70 described later. The plate terminal recess 16 has a circular cross section perpendicular to the vertical direction, and the lower end of the plate terminal 60 and the plate portion 11 interfere with each other when the modular plug 1 is assembled. It is formed to avoid this (see FIG. 5). The concave portion 17 for the press contact terminal has a circular cross section perpendicular to the vertical direction, like the concave portion 16 for the plate terminal, and the lower end of the press contact terminal 70 and the plate when the modular plug 1 is assembled. It is formed in order to avoid the interference with the shaped portion 11. That is, when the lower ends of the plate terminal 60 and the press contact terminal 70 attached to the substrate 50 by solder connection project from the lower surface of the substrate 50, the projecting portions become the plate terminal recess 16 and the press contact terminal recess 17, respectively. (See FIG. 5).

  As shown in FIG. 2, the second housing 20 has a shape extending in the front-rear direction. Here, prior to the description of the configuration of the second housing 20, the configurations of the substrate 50, the plate-like terminal 60 attached to the substrate 50, and the press contact terminal 70 will be described.

  As is often seen in FIG. 2, the board 50 extends in the fitting direction of the modular plug 1 and is used to attach a plurality of plate-like terminals 60 (see FIG. 5) that come into contact with mating terminals that are terminals of the modular jack. Are formed in the front end region, and a plurality of press-contact terminal mounting holes 52 for mounting a plurality of press-contact terminals 70 that are pressed and connected to an electric wire (not shown) are provided on the rear side. It is formed in the end region. The plurality of plate-like terminal mounting holes 51 are formed in a staggered pattern in the width direction of the substrate 50. Further, the press contact terminal mounting holes 52 are formed in two rows in the width direction of the substrate 50, and each row is arranged in a staggered manner in the width direction.

  FIG. 3 is a plan view of the substrate 50 of FIG. The substrate 50 is provided with a circuit portion 54 (illustrated by a broken line) extending in the front-rear direction between the plate-like terminal attachment hole 51 and the pressure contact terminal attachment hole 52 in the front-rear direction, and is provided as an inner layer inside the substrate 50. Yes. In FIG. 3, the circuit portions 54 that appear to intersect each other are actually shifted in the thickness direction of the substrate (direction perpendicular to the paper surface) and are in a non-contact state. By the circuit portion 54, the plate-like terminal 60 attached to the plate-like terminal attachment hole 51 and the press-contact terminals 70 attached to the press-contact terminal attachment holes 52 respectively corresponding to the plate-like terminal attachment holes 51 are electrically connected. It has become so.

  As shown in FIGS. 2 and 3, notches 53 are formed at both side edges of the substrate 50 at the middle position in the front-rear direction. The notch 53 is positioned directly below a later-described front hole and hole 22 of the second housing 20 when the substrate 50 is accommodated in a later-described recess 21 of the second housing 20. Details of the second housing 20 will be described later. The notch 53 allows the shaft restricting portion 12 and the locking piece 13 of the first housing 10 to enter from below when the modular plug 1 is assembled.

  As shown in FIG. 5, the plate-like terminal 60 is formed by punching a metal plate, and the plate surface has a shape in which the connection portion 62 extends downward from the lower edge of the contact portion 61 having a substantially rectangular shape. There is no. The plurality of plate-like terminals 60 are arranged in a staggered manner in a posture in which the plate surface is perpendicular to the width direction of the substrate 50, and are connected to the plate-like terminal mounting holes 51 of the substrate 50. 62 is inserted from above, and the connecting portion 62 is soldered to the substrate 50 on the lower surface side of the substrate 50.

  As shown in FIGS. 2 and 5, the press contact terminals 70 arranged on the rear side are arranged with two terminal rows in the width direction of the substrate 50, and the front side terminal row (hereinafter simply referred to as “front row”). ”) And a pressure contact terminal 72 disposed in the rear terminal row (hereinafter simply referred to as“ rear row ”).

  Further, the press contact terminals 71 and 72 of each terminal row are arranged in a staggered manner in the width direction. Thus, in this embodiment, the press contact terminals 71 and 72 are arranged in a staggered manner in each terminal row, so that the press contact terminals 71 and 72 adjacent to each other in each terminal row do not interfere with each other, so that the terminal arrangement direction That is, the press contact terminals 71 and 72 can be arranged with a narrow interval in the width direction of the second housing 20. Therefore, the electric wire held by the electric wire holding body 30 to be described later can also be held at a position where the interval in the terminal arrangement direction is narrowed corresponding to the position of the press contact terminals 71 and 72. As a result, the second housing 20 and the wire holder 30 and thus the modular plug 1 can be reduced in size in the width direction.

  The press contact terminal 71 and the press contact terminal 72 have the same basic shape but have different lengths in the vertical direction, and the press contact terminals 72 in the rear row are formed to be shorter than the press contact terminals 71 in the front row.

  The press contact terminals 71 and 72 are formed by punching a metal plate, and are formed with two contact portions 71A and 72A extending upward and pressed against the electric wire, and connection portions 71B and 72B extending downward and connected to the substrate 50. The contact parts 71A, 72A and the connection parts 71B, 72B are coupled to each other and have held parts 71C, 72C that are press-fitted and held in the second housing 20 (see FIGS. 9A and 9B). ).

  The facing groove edges of the contact portions 71A and the contact portions 72A are formed as press contact blades 71A-1 and 72A-1 that bite into the coating of the electric wire and contact the core wire of the electric wire. That is, the press contact blades 71A-1 and 72A-1 press contact the electric wire at a predetermined position in the vertical direction (see also FIGS. 9A and 9B). Hereinafter, in the press contact blades 71 </ b> A- 1 and 72 </ b> A- 1, a portion where the electric wire is pressed is referred to as “wire press contact portion”. As shown in FIG. 2, the press contact terminals 71 and 72 are arranged such that the wire press contact portion of the press contact terminal 71 is located below the wire press contact portion of the press contact terminal 72, that is, the wire press contact portion is stepped in the vertical direction. (See also FIGS. 5, 9A and 9B). Further, the side edges of the held parts 71C and 72C project in the width direction of the modular plug 1, and the lower edges of the projecting parts are the contact parts 71C-1 and 72C-1 that contact the housing in the vertical direction. It is formed (see FIGS. 9A and 9B).

  The press contact terminals 71, 72 are held in the second housing 20 while being shifted in a zigzag manner in a posture in which the plate surfaces are perpendicular to the front-rear direction, and are connected to the press contact terminal holding holes 52 of the substrate 50. 71B and 72B are inserted from above, and the connecting portions 71B and 72B are soldered to the substrate 50 on the lower surface side of the substrate 50. That is, as is often seen in FIG. 5, the connecting portion 71B and the connecting portion 72B are in the same position in the vertical direction. Further, since the wire pressure contact portion of the pressure contact terminal 72 is located below the wire pressure contact portion of the pressure contact terminal 71, the pressure contact terminal 72 has a distance from the wire pressure contact portion to the connecting portions 71B and 72B rather than the pressure contact terminal 71. It is getting shorter.

  Returning to the description of the second housing 20. As shown in FIG. 2, the second housing 20 has a shape extending in the front-rear direction. As shown in FIG. 5, the second housing 20 accommodates the substrate 50 and the first housing 10. A recess 21 is formed on the lower surface (see FIG. 5). The concave portion 21 has a shape suitable for accommodating the substrate 50 on the bottom side and accommodating the plate-like portion 11 of the first housing 10 under the substrate 50.

  A front hole portion (not shown) that penetrates in the vertical direction at a position near both side edges in the recess 21 is provided at a position slightly closer to the front than the center portion in the front-rear direction of the second housing 20. When the modular plug 1 is assembled, the front hole part allows the shaft restricting part 12 of the first housing 10 to enter from below. Further, a hole 22 that penetrates in the vertical direction at a position near both side edges in the recess 21 is provided at a substantially central portion in the front-rear direction of the second housing 20, that is, at a position behind the front hole. (See also 4 (A)). The hole 22 allows the locking piece 13 of the first housing 10 to enter from below when the modular plug 1 is assembled. The front hole portion and the hole portion 22 are formed immediately above the cutout portion 53 of the substrate 50 accommodated in the concave portion 21 and can communicate with the cutout portion 53 in the vertical direction. Further, as shown in FIG. 4A, on the inner wall surface forming the hole portion 22, a locked portion for locking with the locking claw portion 13 A of the locking piece 13 in the vertical direction. 22A is formed to protrude inward in the width direction of the second housing 20 (the left-right direction in FIG. 4A).

  The rear side portion of the concave portion 21 of the second housing 20 has a shape adapted to the narrow portion 11A of the plate-like portion 11 of the first housing 10, and the positions near the both side edges of the rear side portion are shown in FIG. As can be seen, a rear hole 23 penetrating in the vertical direction is formed (see also FIG. 4C). As will be described later, the rear hole portion 23 allows the rear locking piece 14 of the first housing 10 to enter when the modular plug 1 is assembled. Further, as shown in FIG. 4C, the inner wall surface forming the rear hole 23 is rearwardly engaged with the rear locking claw 14 </ b> A of the rear locking piece 14 in the vertical direction. A locked portion 23 </ b> A is formed to protrude inward in the width direction of the second housing 20 (the left-right direction in FIG. 4C).

  Further, the rear side portion of the second housing 20 protrudes outward in the width direction of the second housing 20 as shown in FIG. 2 at substantially the same position as the rear locked portion 23A in the front-rear direction. A mounted portion 24 is formed (see also FIG. 4C). As will be described later, the attached portion 24 is engaged with an attachment piece of the electric wire holding body 30 when the connector is assembled.

  As shown in FIG. 2, a substantially rectangular parallelepiped hanging portion 25 is formed at the lower edge of the front end portion of the second housing 20 at the center in the width direction of the second housing 20. A second slit 25A penetrating in the front-rear direction is formed. The second slit 25A has an elongated shape with the same dimensions as the first slit 15A-1 of the first housing 10 in the width direction, and as shown in FIG. The piece 43 can be inserted. When the first housing 10 is attached to the second housing 20, the second slit 25 </ b> A coincides with the position of the opening of the first slit 15 </ b> A- 1 of the first housing 10, as shown in FIG. 5. In addition, one slit that communicates with the first slit 15A-1 in the front-rear direction is formed, and the insertion of the forward extending piece 43 of the metal shell 40 described later is allowed.

  As shown in FIGS. 2 and 5, the second housing 20 has a plate-like terminal receiving groove 26 for receiving the plate-like terminal 60 at the front end side portion at a position corresponding to the plate-like terminal 60. Have. The plurality of plate-like terminal receiving grooves 26 are formed as comb-shaped groove portions that open to the front and upper side of the second housing 20.

  In the second housing 20, the upper surface of the region where the rear row press contact terminals 72 are disposed is located below the upper surface of the region where the front row press contact terminals 71 are disposed at a position near the rear end, and forms a step portion. ing. A press-contact terminal press-fit hole 27A that allows the press-contact terminal 71 to be inserted is formed in an area where the press-contact terminal 71 is disposed, and the press-contact terminal 72 is inserted into an area where the press-contact terminal 72 is disposed at a rear position thereof. A press-fit terminal press-fit hole 27B is formed to allow The plurality of press contact terminal press-fitting holes 27A, 27B are arranged in a staggered manner in the width direction of the second housing 20 as can be seen in FIG. 2, and as is often seen in FIG. Is vertically penetrated. In addition, the inner wall surfaces of the press contact terminal press-fit holes 27A and 27B are in contact with the contact portions 71C-1 and 72C-1 of the press contact terminals 71 and 72 press-fit into the press contact terminal press-fit holes 27A and 27B from above. Support portions 27A-1 and 27B-1 that contact and support the pressure contact terminals 71 and 72 are formed as stepped portions (see FIGS. 9A and 9B). In a state where the press contact terminals 71 and 72 are press-fitted and held in the press contact terminal press-fit holes 27A and 27B, the contact portions 71A and 72A protrude upward from the press contact terminal press-fit holes 27A and 27B.

  As is often seen in FIGS. 2 and 4B, the second housing 20 is inserted in the width direction inward and downward at the intermediate position in the front-rear direction. This recessed space is formed as an immersion locked portion 28 that receives a bent locking portion 48 of the metal shell 40 described later. The lower surface of the inner wall surface forming the immersion locked portion 28 is formed as a mounted surface 28A to which the bent locking portion 48 of the metal shell 40 is mounted, and is a rear side perpendicular to the front-rear direction. The surface on the side is formed as a locked surface 28 </ b> B that locks in the front-rear direction with the rear end edge of the bent locking portion 48. The second housing 20 is formed as a gripped portion 29 that is gripped by a gripping portion 49 of a metal shell 40, which will be described later, on both sides of the rear end portion.

  The wire holder 30 is in the closed position as shown in FIGS. 1A and 1B, that is, the mounted portion 24 of the second housing 20 and a mounting piece 33 of the wire holder 30 described later. In a state where the two are engaged with each other, it has a substantially rectangular parallelepiped block portion 31 extending in the front-rear direction and a plate-like extension portion 32 extending forward from the block portion 31.

6A is a bottom view of the electric wire holder 30, that is, the electric wire holder 30 in the posture shown in FIG. 1A viewed from below, and FIG. 6B is a rear view of the electric wire holder 30. It is the figure seen from. FIG. 7A is a cross-sectional view of the wire holding body 30 of FIG. 6A taken along the line VIIA-VIIA. Of the press contact terminal insertion holes 36A described later arranged in a staggered manner, the front press contact terminal insertion hole 36A. The cross section in the position of is shown. FIG. 7B is a cross-sectional view of VIB-VIIB of the electric wire holder 30 of FIG. 6A, and the position of the pressure contact terminal insertion hole 36B on the rear side among the pressure contact terminal insertion holes 36B described later arranged in a staggered manner. The cross section in is shown. FIG. 7C is a VIIC-VIIC cross-sectional view of the electric wire holder 30 of FIG. 6B and shows a cross section at the position of the electric wire holding hole 35 in the vertical direction.

  As often seen in FIG. 6A, a shaft portion 37 that protrudes outward in the width direction of the extending portion 32 is provided at the front end of both side edge portions of the extending portion 32. The shaft portion 37 has a circular cross section perpendicular to the axis, and is supported by a groove-shaped shaft support portion (not shown) formed on the inner surface of both side walls of the second housing 20 and opened rearward. Thereby, the electric wire holding body 30 has an open position where the electric wire can be mounted in a state of being separated from the second housing 20, and a closed position where the electric wire is pressed against the press contact terminals 71 and 72 in the vicinity of the second housing 20. It is attached to the 2nd housing 20 in the state which can freely rotate between.

  As shown in FIG. 1A, an attachment piece 33 is formed at the rear end portion of the block portion 31 so as to extend downward from the lower edge of both end portions in the width direction of the block portion 31. The mounting piece 33 has a plate surface perpendicular to the width direction and can be elastically bent in the width direction, and has a window-shaped mounting window portion 33A penetrating in the width direction. .

  As shown in FIGS. 6 (A) and 6 (B), the block portion 31 has a plurality of wire holding grooves 34 for holding the wires arranged in the lower stage at the closed position and an upper stage. A plurality of wire holding holes 35 for holding the arranged wires are arranged in two stages in the vertical direction corresponding to the positions of the wire pressure contact portions of the pressure contact terminals 71 and 72 held in the second housing 20. ing. The wire holding grooves 34 extend in the front-rear direction at the lower portion of the wire holding body 30 and are formed side by side in the width direction.

  The electric wire holding groove 34 extends in the front-rear direction at the rear half of the block portion 31, and a cross section perpendicular to the front-rear direction has an inverted U shape. As shown in FIGS. 6A and 6B, the electric wire holding groove 34 has a plurality of plate-like holding protrusions 34A protruding from the inner wall surface of the electric wire holding groove 34 in the front-rear direction. is doing. The electric wires arranged in the lower stage are press-fitted between the holding projections 34A on both sides from below in FIG. 6 (B), so that the electric wires as shown by a two-dot chain line in FIG. 6 (A). It is held in the holding groove 34.

  As shown in FIGS. 6B and 7A, 7B, and 7C, the wire holding hole 35 extends in the front-rear direction above the wire holding groove 34 and has the width described above. It is formed side by side in the direction. The electric wire holding hole 35 has a circular cross section perpendicular to the front-rear direction, and the front end of the electric wire holding hole 35 is positioned forward of the front end of the electric wire holding groove 34 as shown in FIG. is doing. The electric wires arranged in the upper stage are inserted into the electric wire holding hole 35 from the rear side, and are held in the electric wire holding hole 35 as shown by a two-dot chain line in FIG. As is often seen in FIG. 7C, the electric wire holding hole 35 is formed so that the inner diameter gradually decreases toward the front, and the inner diameter of the front side portion becomes smaller than the outer diameter of the electric wire. ing.

  Further, the electric wire holding hole 35 extends over substantially the entire area of the block portion 31 in the front-rear direction, and an abutting wall portion 35 </ b> A is formed at the front end of the electric wire holding hole 35. As will be described later, the corresponding wall portion 35A is used for positioning the electric wire in the front-rear direction when the electric wire holding hole 35 holds the electric wire. As is often seen in FIG. 6, the electric wire holding hole 35 has its front side portion opened downward, and the front end of the electric wire inserted into the electric wire holding hole 35 comes into contact with the abutting wall portion 35 </ b> A to be inserted. Whether or not it is completed can be visually confirmed from the outside (see also FIG. 8A).

  As shown in FIGS. 5 and 6A, the electric wire holder 30 has press contact terminal insertion holes 36A and 36B extending in the vertical direction at positions corresponding to the press contact terminals 71 and 72. As is often seen in FIG. 5, the pressure contact terminal insertion hole 36 </ b> A communicates with the wire holding hole 35, and the pressure contact terminal communication hole 36 </ b> B communicates with the wire holding groove 34 and the wire holding hole 35. Further, the contact portion 71A of the front-side press contact terminal 71 protruding upward from the press contact terminal press-fit hole 27A of the second housing 20 is accommodated in the press contact terminal insertion hole 36A, and upward from the press contact terminal press-fit hole 27B of the second housing 20. The protruding contact portion 72A of the rear row of press contact terminals 72 is accommodated in the press contact terminal insertion hole 36B. In this embodiment, as is often seen in FIG. 5, the upper ends of the press contact terminal insertion holes 36A and 36B do not penetrate the upper wall portion of the wire holder 30, but instead of the press contact terminals The upper end portions of the terminal insertion holes 36 </ b> A and 36 </ b> B may pass through the upper wall portion of the wire holder 30.

  The metal shell 40 is formed by punching a metal plate and then bending it. As shown in FIGS. 1 (A) and 1 (B), the metal shell 40 has a plate surface perpendicular to the vertical direction by bending both end portions at a right angle upward. A lower plate portion 41 and two side plate portions 42 made of the both side end portions are formed. The metal shell 40 is substantially U-shaped by the lower plate portion 41 and the two side plate portions 42 when viewed in the front-rear direction.

  A front extending piece 43 extends forward from the central portion of the front end edge of the lower plate portion 41 (see FIG. 5). As will be described later, the front extension piece 43 has a flat plate shape that extends forward before the metal shell 40 is attached to the second housing 20, but the front extension piece 43 is attached when the metal shell 40 is attached. By bending the front end region of 43, a front locking portion that locks the front surface of the hanging portion 25 of the second housing 20 in the front-rear direction is formed.

  Further, as seen in FIG. 1B, an electric wire holding portion 44 for holding an electric wire is connected to a rear end edge of the lower plate portion 41 by a narrow connecting portion 45. The electric wire holding portion 44 is formed in a U-shape when viewed in the front-rear direction. A cut-and-raised portion 46 formed by cutting and raising the lower plate portion 41 is formed at a position closer to the rear side of the lower plate portion 41, and the cut-and-raised portion 46 is obliquely downward (inclined in FIG. 1B). (Upward). The cut-and-raised portion 46 is used for positioning the modular plug 1 and the cover when, for example, a synthetic resin cover is attached to the rear side portion of the modular plug 1 after the modular plug 1 is assembled.

  As shown in FIG. 1A, a projecting portion 47 projects from the upper portion of the front end edge of the side plate portion 42 toward the front. The front end of the overhang portion 47 is located behind the front end of the front extension piece 43. The side plate portion 42 is provided with a groove extending in the vertical direction at a position closer to the front, and a bending locking portion that locks with the second housing 20 in the extraction direction of the modular plug 1, that is, rearward as will be described later. 48 is formed. The bending locking portion 48 also functions as an attachment portion of the metal shell 40 to the second housing 20 as will be described later. Further, the side plate portion 42 is cut out even at a position near the rear, and a grip portion 49 for attaching the metal shell 40 to the second housing 20 is formed behind the cutout portion.

  The modular plug 1 is assembled in the following order. First, the held portion 62 of the plate-like terminal 60 is inserted into the plate-like terminal mounting hole 51 of the substrate 50 from above, and then the held portion 62 and the circuit portion of the substrate 50 are soldered. Further, the press contact terminals 71 and 72 are press-fitted into the press contact terminal press-fit holes 27A and 27B of the second housing 20 from above. In a state where the press contact terminals 71 and 72 are press-fitted into the press contact terminal press-fit holes 27A and 27B, the connection portions 71B and 72B on the lower end side of the press contact terminals 71 and 72 protrude downward from the press contact terminal press-fit holes 27A and 27B. ing.

  Next, the board 50 to which the plate-like terminal 60 is soldered is accommodated in the recess 21 of the second housing 20. As a result, the plate-like terminal 60 is accommodated in the plate-like terminal accommodating groove 26 of the second housing 20, and the press contact terminals 71, 72 projecting downward from the press contact terminal press-fitting holes 27A, 27B of the second housing 20 are provided. The connecting portions 71B and 72B are inserted into the press contact terminal mounting hole 52 of the substrate 50 from above. Then, the connection portions 71B and 72B of the press contact terminals 71 and 72 and the circuit portion of the substrate 50 are soldered. By this solder connection, the plate-like terminal 60 and the press contact terminals 71 and 72 are electrically connected via the circuit portion of the substrate 50.

  Next, the shaft portion 37 of the electric wire holder 30 is caused to enter the shaft support portion from behind in a groove-shaped shaft support portion (not shown) of the second housing 20 and the first housing 10 is moved from the lower side to the second housing 10 from below. It is attached to the housing 20. The shaft restricting portion 12 of the first housing 10 penetrates the cutout portion 53 of the substrate 50 and the front hole portion of the second housing 20 from below, and the upper end side portion of the shaft restricting portion 12 is the shaft portion of the wire holding body 30. It is located on the rear side of 37 and adjacent to the shaft portion 37. Accordingly, the rearward movement of the shaft portion 37 is restricted by the shaft restricting portion 12, and the state where the shaft portion 37 is rotatably supported by the shaft supporting portion is maintained. As a result, the electric wire holder 30 is attached to the second housing 20 so as to be rotatable between the open position and the closed position around the shaft portion 37.

  Further, when the first housing 10 is attached to the second housing 20, the locking piece 13 of the first housing 10 enters the hole 22 of the second housing 20 through the notch 53 of the substrate 50. As shown in FIG. 4A, the locking claw portion 13A of the locking piece 13 of the first housing 10 is locked with the locked portion 22A of the second housing 20 in the vertical direction.

  Further, the rear locking piece 14 of the first housing 10 enters the rear hole portion 23 of the second housing 20, and as shown in FIG. The claw portion 14A is locked with the rear locked portion 23A in the vertical direction. As described above, the locking claw portion 13A and the rear locking claw portion 14A of the first housing 10 and the locked portion 22A and the rear locked portion 23A of the second housing 20 are respectively locked to each other. The attachment of the first housing 10 to the second housing 20 is completed. As a result, the first housing 10 and the second housing 20 indirectly hold the plate-like terminal 60 and the press contact terminals 71 and 72 attached to the substrate 50 by sandwiching the substrate 50.

  When the first housing 10 is completely attached, the front surface of the base portion 15A of the lock piece 15 of the first housing 10 and the rear surface of the hanging portion 25 of the second housing 20 are in contact with each other. The position of the one slit 15A-1 and the position of the second slit 25A of the second housing 20 coincide in the width direction and the vertical direction of the second housing 20. Therefore, as seen in FIG. 5, the first slit 15A-1 and the second slit 25A form one slit penetrating in the front-rear direction.

  Next, the metal shell 40 is attached to the first housing 10 and the second housing 20. Specifically, first, the metal shell 40 is moved forward from the rear of the first housing 10 and the second housing 20. At this time, the forward extending piece 43 of the metal shell 40 has not yet been bent and has a flat plate shape. The metal shell 40 moves so that the lower plate portion 41 slides forward on the lower surface of the plate-like portion 11 of the first housing 10, and the forward extending piece 43 of the metal shell 40 is moved to the first housing 10. The first slit 15A-1 and the second slit 25A of the second housing 20 are inserted. The sliding movement of the metal shell 40 is such that the front end of the lower plate portion 41 at both ends in the width direction on the rear end surface of a step (not shown) formed on the lower surface of the front portion of the plate-like portion 11 of the first housing 10. The process is performed until the edge abuts and the front end edge of the side plate portion 42 abuts on the rear end surface of the step portion 25B formed on the side surface of the front side portion of the second housing 20. When the sliding movement of the metal shell 40 is completed, the front end region of the front extending piece 43 protrudes forward from the second slit 25A, and the bending locking portion 48 and the gripping portion 49 of the metal shell 40 are second. The positions of the immersion locked portion 28 and the gripped portion 29 of the housing 20 in the front-rear direction coincide with each other.

  Next, the front end region of the front extending piece 43 of the metal shell 40, that is, the portion protruding forward from the second slit 25A of the second housing 20 is bent at a right angle upward. A portion where the front end region of the front extension piece 43 is bent is formed as a front locking portion 43A that locks the front surface of the hanging portion 25 of the second housing 20 in the front-rear direction.

  Further, the bending locking portion 48 and the grip portion 49 are bent so as to hold both the first housing 10 and the second housing 20, that is, toward the inner side in the width direction of the first housing 10 and the second housing 20. To do. As a result, the upper end side portion of the bending locking portion 48 comes into contact with the mounted surface 28A of the second housing 20 at its plate surface, so that the bending locking portion 48 grips the portion whose upper surface is the mounted surface 28A. In addition, the grip portion 49 grips the gripped portion 29 of the second housing 20 (see FIG. 4B). As a result, the state in which the first housing 10 and the second housing 20 sandwich the substrate 50 is stably maintained. The rear end edge of the bent locking portion 48 is locked to the locked surface 28B of the second housing 20 in the front-rear direction by its plate thickness surface. Through the above steps, the assembly of the modular plug 1 is completed.

  Then, the process of connecting an electric wire to the modular plug 1 is demonstrated. FIG. 8 is a perspective view of the modular plug 1 that holds an electric wire as viewed obliquely from above, (A) is a perspective view showing a state in which the electric wire holder 30 is in an open position, and (B) is an electric wire of (A). It is a perspective view which shows the state in which the holding body 30 was brought to the closed position. 9A is a cross-sectional view of the modular plug 1 shown in FIG. 8B, taken along the line IXA-IXA, and shows a cross section at the position of the front pressure contact terminal 72 among the pressure contact terminals 72 arranged in a staggered manner. Show. FIG. 8B is an IXB-IXB cross-sectional view of the modular plug 1 and shows a cross-section at the position of the pressure contact terminal 71 on the rear side among the pressure contact terminals 71 arranged in a staggered manner.

  First, as illustrated in FIG. 8A, the electric wire C <b> 1 is held by the electric wire holder 30. Specifically, the electric wire holding body 30 that is rotatably attached to the second housing 20 is in an open position away from the second housing 20, that is, as shown in FIG. With the body 30 extending vertically, in this state, the wire C1 is press-fitted into the wire holding groove 34 on the lower side of the wire holding body 30, and the wire C1 is inserted into the wire holding hole 35 on the upper side.

  The lower-stage electric wire C1 is press-fitted into the electric wire holding groove 34 in such a manner that the electric wire is held between the holding projections 34A of the electric wire holding groove 34 from the opening side of the electric wire holding groove 34, that is, from the right side in FIG. This is done by press-fitting C1. In the present embodiment, when the lower-stage electric wire C1 is press-fitted, first, from the holding protrusion 34A positioned at the lowermost position in FIG. 8 (the holding protrusion 34A positioned at the leftmost position in FIG. 6A). The wire C1 is press-fitted with the tip of the wire C1 positioned downward. And the front-end side part of the electric wire C1 which protrudes below rather than the holding | maintenance protrusion 34A located in the said lowest part is cut and removed. Therefore, when the electric wire holding body 30 is brought to the closed position, the front end portion of the lower-stage electric wire C1 is not pressed into contact with the press-contact terminal 71 corresponding to the upper-end electric wire C1.

  Insertion of the upper-stage electric wire C1 into the electric wire holding hole 35 is performed until the tip of the electric wire C1 comes into contact with the abutting wall portion 35A (see FIG. 6A) of the electric wire holding hole 35. Thus, in the present embodiment, the contact wall portion 35 </ b> A is provided in the electric wire holding hole 35, so that the electric wire C <b> 1 can be easily positioned in the longitudinal direction of the electric wire holding hole 35. Further, as shown in FIG. 8 (A), the electric wire holding hole 35 has its front side portion (lower side portion in FIG. 8 (A)) opened downward (right side in FIG. 8), Since it is possible to visually check whether the front end of the electric wire inserted into the electric wire holding hole 35 is in contact with the contact wall portion 35A, the electric wire C1 can be reliably inserted into the electric wire holding hole 35.

  Further, in the present embodiment, the electric wire holding hole 35 is formed so that the inner diameter of the front side portion is smaller than the outer diameter of the electric wire C1, so that the electric wire C1 is in contact with the abutting wall portion 35A. The front side portion of C1 is press-fitted and held in the electric wire holding hole 35. Accordingly, since the electric wire C1 is firmly held by the electron holder 30 in the open position, it is possible to prevent the electric wire C1 from being detached from the electron holder 30 when the electric wire holder 30 is moved to the closed position. .

  Next, in a state where the electric wire holder 30 holds the electric wire C <b> 1, the electric wire holder 30 is turned to the closed position toward the second housing 20 around the shaft portion 37 of the electric wire holder 30. As a result, as shown in FIG. 8B, the mounted portion 24 of the second housing 20 enters the mounting window portion 33A of the mounting piece 33 of the wire holder 30, and the mounting window portion 31A. And the attached portion 24 are engaged with each other in the vertical direction, whereby the wire holding body 30 is fixed to the second housing 20 (see also FIG. 4C).

  When the wire holder 30 is brought into the closed position, the contact portion 72A of the press contact terminal 72 enters the wire holding groove 34 from below and the contact portion 71A of the press contact terminal 71 enters the wire holding hole 35 from below. To do. In other words, as shown in FIG. 9A, the lower wire C1 held in the wire holding groove 34 enters between the pair of contact portions 72A of the press contact terminal 72 from above, and FIG. As shown in (B), the upper-stage electric wire C <b> 1 held in the electric wire holding hole 35 enters between the pair of contact portions 71 </ b> A of the press contact terminal 71 from above. Therefore, the press contact blade 72A-1 of the contact portion 72A bites into the coating C1A of the electric wire C1, and the press contact blade 71A-1 of the contact portion 71A bites into the coating C1A of the electric wire C1. Thus, as a result of the electric wire C1 being pressed downward with respect to the press contact terminals 71 and 72, the core wire C1B of each wire C1 comes into contact with the press contact blades 71A-1 and 72A-1, and the corresponding press contact terminals. 71 and 72 are electrically connected. Therefore, by bringing the electric wire holder 30 to the closed position, the electric wire C1 and the plate-like terminal 60 can be electrically connected to each other via the press contact terminals 71 and 72 and the circuit portion of the substrate 50.

  Further, as is often seen in FIG. 8B, the shield wire C3 that is exposed by peeling off the jacket C2 of the cable C enters the electric wire holding portion 44 from the opening of the U-shaped portion. And the metal shell 40 hold | maintains the cable C and is electrically connected with this shield wire C3 by crimping the electric wire holding | maintenance part 44 with respect to the shield wire C3. The connection of the electric wire to the modular plug 1 is completed by the above process.

  In the present embodiment, when the electric wire holder 30 is brought to the closed position, the electric wire C1 is pressed against the press contact terminals 71 and 72 from above, whereby a downward force acts on the press contact terminals 71 and 72. To do. 9A and 9B, the contact terminals 71C and 72C-1 are provided with contact parts 71C-1 and 72C-1, respectively, and the contact terminals 71 and 72 correspond to the corresponding contact part 71C. The contact portions 27A-1 and 27B-1 of the second housing 20 are in contact with each other at -1, 72C-1. Therefore, the downward force received by the press contact terminals 71 and 72 from the electric wire holding body 30 is supported by the second housing 20, and the corresponding circuit between the connection portions 71 B and 72 B of the press contact terminals 71 and 72 and the substrate 50. The downward force transmitted to the solder connection part with the part can be reduced. As a result, damage to the solder connection portion can be avoided, and the connection state between the press contact terminals 71 and 72 and the corresponding circuit portion can be favorably maintained.

  FIG. 10 is a cross-sectional view of the state in which the modular plug 1 of FIG. 1A is fitted with the modular jack, and shows a cross section at the same position as FIG. The modular jack 2 fitted to the modular plug 1 shown in the present embodiment is made of a plurality of mating terminals 80 that come into contact with the plate-like terminals 60 of the modular plug 1 and an electrical insulating material, as shown in FIG. It has a housing 90 for arranging and holding the plurality of mating terminals 80, and a metal shell 100 attached to the housing 90 so as to cover the housing 90.

  The mating terminal 80 is composed of two types of terminals having slightly different shapes, but the basic configuration is the same. Therefore, in the present embodiment, only one type of terminal will be described, and description of other types of terminals will be omitted. The mating terminal 80 is formed by bending a strip obtained by punching a metal plate in the thickness direction. As shown in FIG. 10, the mating terminal 80 extends in the horizontal direction and is held by a housing 90, and the right end of the held portion 81 forwards the modular plug 1 in the fitting direction (left). And a flexible contact portion 82 that extends obliquely downward and a connection portion 83 that extends upward from the left end of the held portion 81. The plurality of mating terminals 80 having such a configuration are arranged in a direction perpendicular to the paper surface corresponding to the plate-like terminals 60 of the modular plug 1, and the contact portion 82 can be elastically displaced in the vertical direction.

  The housing 90 is formed with a receiving recess 91 that receives the front side (left end side) portion of the modular plug 1 and opens rearward (rightward) in the fitting direction. The receiving recess 91 has a shape adapted to the front side portion of the modular plug 1, and during the fitting operation of the modular plug 1, a pressed portion 15 </ b> D of the lock piece 15 of the modular plug 1 (FIG. 1B). A pressing portion (not shown) for pressing upward (see) is provided on the upper inner wall surface. Further, in the state where the modular plug 1 and the modular jack 2 are fitted to the upper inner wall surface, they are engaged with the step portion 15C (see FIG. 1B) of the lock piece 15 of the modular plug 1 in the front-rear direction. A corresponding step (not shown) is provided to stop.

  The housing 90 is formed with a mating terminal holding hole 92 for press-fitting and holding the mating terminal 80 penetrating in the front-rear direction above the receiving recess 91. As shown in FIG. 10, the receiving recess 91 and the mating terminal holding hole 92 are separated by a partition wall 93. The lower surface of the partition wall portion 93 is an inner wall surface on the upper side of the receiving recess 91, and the upper inner wall surface is an inclined surface 93A that is inclined upward toward the rear (right side) in the fitting direction of the modular plug 1. It is formed as. The upper surface of the partition wall 93 is a lower inner wall surface that forms the mating terminal holding hole 92.

  As shown in FIG. 10, in a state where the mating terminal 80 is held in the mating terminal holding hole 92 of the housing 90, the contact portion 82 of the mating terminal 80 is inclined in the receiving recess 91. It extends to the left while forming a gap with the surface 93A, and can be elastically displaced upward in a free state. The connection portion 83 of the mating terminal 80 enters a groove (not shown) formed in the upper wall portion 94 of the housing 90 at a position near the left end of the modular jack 2. It extends upward.

  The metal shell 100 is formed by bending a metal plate, and covers the lower surface and side surfaces of the housing 90 and the front surface (left side in FIG. 10) in the fitting direction of the modular plug 1. Is attached.

  The modular jack 2 is assembled as follows. First, one end side of a straight strip as a terminal material is bent at a right angle to form a connection portion 83 to make the entire terminal material L-shaped, and the terminal material is inserted into the mating terminal holding hole 92 of the housing 90. Is press-fitted from the other end side of the terminal material. At this time, the terminal material is press-fitted from the left in FIG. 10, and the other end side of the terminal material, that is, the right end portion protrudes from the mating terminal holding hole 92 and extends. This is performed until the portion 83 enters the groove portion of the upper wall portion 94 of the housing 90.

  Next, the right end portion of the terminal material protruding from the mating terminal holding hole 92 is bent so as to be folded leftward along the inclined surface 93 </ b> A of the housing 90 to form the contact portion 82. At this time, the right side portion is bent to such an extent that a gap as shown in FIG. 10 is formed between the contact portion 82 and the inclined surface 93A. Further, the metal shell 100 is attached to the housing 90 so as to cover the lower surface and side surfaces of the housing 90 and the front surface in the fitting direction of the modular plug 1 (left side in FIG. 10). Assembling of the modular jack 2 is completed through the above steps.

  Hereinafter, the fitting operation between the modular plug 1 and the modular jack 2 according to the present embodiment will be described with reference to FIG. When the modular plug 1 is inserted into the receiving recess 91 of the modular jack 2 from the right side in FIG. 10, the pressed portion 15D (see FIG. 1B) of the lock piece 15 of the modular jack 1 becomes the pressing portion of the modular jack 2 (see FIG. 1B). The lock piece 15 is elastically displaced upward by being pressed upward by an unillustrated). With the lock piece 15 elastically displaced, the modular plug 1 is further moved into the receiving recess 91, and the step portion 15 </ b> C (see FIG. 1B) of the lock piece 15 of the modular plug 1 is located before and after the modular jack 2. When the position of a corresponding step portion (not shown) in the direction is exceeded, the pressed portion 15D is released from being pressed by the pressing portion, and the lock piece 15 returns from the elastically displaced state to the free state. In the free state, the stepped portion 15C of the modular plug 1 is locked with the corresponding stepped portion of the modular jack 2 in the extraction direction (rightward) of the modular plug 1. As a result, the fitting operation between the modular plug 1 and the modular jack 2 is completed.

  Further, in the state where the fitting operation is completed, the contact portion 82 of the mating terminal 80 of the modular jack 2 moves upward into the plate-like terminal receiving groove 26 in which the corresponding plate-like terminal 61 is accommodated in the modular plug 1. Enters and elastically contacts with the plate-like terminal 61. As a result, the modular plug 1 and the modular jack 2 are electrically connected. In addition, the attitude | position at the time of fitting operation | movement of the modular plug 1 and the modular jack 2 is not restricted to the attitude | position in which the lock piece 15 of the modular plug 1 is located below as shown in FIG. For example, the fitting operation may be performed in a posture in which the configuration shown in FIG. 10 is turned upside down, that is, in a posture in which the lock piece 15 of the modular plug 1 is positioned upward.

  In the modular plug 1 according to this embodiment, all the press contact terminals 70 are arranged and held in steps in the vertical direction on the upper surface side of the second housing 20. The upper surface of the second housing 20 is provided with an electric wire holding body 34 having an electric wire holding groove 34 and an electric wire holding hole 35 for holding all electric wires corresponding to the press contact terminals 70, and the electric wire holding groove 34. The wire holding holes 35 are arranged and held in steps corresponding to the pressure contact terminals 70.

  Thus, by arranging the press contact terminals 70, the wire holding grooves 34, and the wire holding holes 35 in steps, the number of the press contact terminals 70 arranged in the width direction of the modular plug 1 and the width direction of the wire holding body 30 are arranged. Without doubling the number of wires to be held, all the terminals are held on one surface of the second housing 20, and all the wires are held on the wire holding body 30 provided on the one surface side. it can.

  Therefore, the number of wires doubled by the number of steps of all the wires, that is, the wire holding grooves 34 and the wire holding holes 35, by one operation of rotating the wire holding body 30 holding the wires from the open position to the closed position. Can be collectively brought into pressure contact with the pressure contact terminal 70 and connected to the pressure contact terminal 70.

  Moreover, since the electric wire holding body 30 only needs to be provided on one surface side of the second housing 20, the modular plug 1 can be reduced in size, and further required when the electric wire holding body 30 is in the open position. It is only necessary to secure the space on one side. Further, as described above, since all the press contact terminals 70 and the electric wires are held in steps, it is possible to avoid the second housing 20 and the electric wire holding body 30 and thus the modular plug 1 from being enlarged in the width direction.

  In the present embodiment, the stepped portion is formed so that the upper surface of the area where the rear row of press contact terminals is arranged in the second housing is located below the upper surface where the front row of press contact terminals are arranged. Alternatively, the upper surface of the region where the front row of press contact terminals are arranged and the upper surface of the region of the rear row of press contact terminals may be formed at the same position in the vertical direction.

  In this embodiment, the press contact terminals are arranged and held in two upper and lower stages by the second housing, but the number of stages in which the press contact terminals are arranged and held is not limited to two, and the number of terminal rows of the press contact terminals, and thus the press contact terminals. Depending on the number of wires that are press-contacted to each other, it may be arranged and held in three or more stages. When the press contact terminals are arranged and held in three or more stages, the total number of steps of the wire holding grooves and the wire holding holes formed in the wire holding body is the same as the number of steps of the press contact terminals.

  In the present embodiment, both the wire holding groove and the wire holding hole are formed in the wire holding body, but instead of this, only one of the wire holding groove and the wire holding hole may be formed.

  In the present embodiment, the electric wire holder is attached to the second housing in a rotatable state, but the form of the electric wire holder is not limited to this. For example, the electric wire holder is attached to the second housing. Is formed as a separate member that is not attached, and is attached to the second housing from above with the electric wire held, and the electric wire is pressed against the press contact terminal when attached to the second housing. It may be.

1 Modular plug 35 Electric wire holding hole (electric wire holding part)
2 Modular jack 35A Abutting wall portion 10 First housing 70, 71, 72 Press contact terminal 20 Second housing 71B, 72B Connection portion 30 Electric wire holder 71C, 72C Holding portion 34 Electric wire holding groove (electric wire holding portion)

Claims (3)

A modular plug that is detachably fitted to a modular jack in a state in which a plurality of electric wires are connected, and the plurality of electric wires that extend in the front-rear direction, which is a fitting / extraction direction of the modular plug , with respect to the front-rear direction A plurality of terminals that are press-connected in a direction perpendicular to each other, and terminal rows arranged in the width direction of the modular plug that is perpendicular to both the front-rear direction and the pressure-contact direction of the wire are formed at two positions in the front-rear direction. The housing for arranging and holding the front row and the rear row of terminal rows and the plurality of electric wires are arranged and held so that the electric wires can be attached to the terminals in an open position where the electric wires can be mounted in a state separated from the housing. In a modular plug comprising an electric wire holder movable between a closed position to be pressed,
The modular plug has a substrate that is held in a housing and to which the plurality of terminals are connected. The housing faces the electric wire holder, and the press contact blades of the terminals of each terminal row are in the press contact direction in the electric wire direction. The terminal is held at a position where the wire pressure contact portion of the pressure contact blade extends toward the holding body and forms two steps in the pressure contact direction, and the terminals of each terminal row are in contact with the wire pressure contact portion in the pressure contact direction. The connecting portion provided on the opposite side and extending in the pressure-contact direction and connected to the substrate is in the same position in the pressure-contact direction, and the wire holding body has a wire holding portion for holding the wire in the closed position. Corresponding to the position of the wire pressure contact portion of the terminal of each terminal row, it is arranged in two steps in the pressure contact direction, and the wire holding portion of one step corresponding to the wire pressure contact portion of the terminal in the front row is the above It extends in the front-rear direction at the closed position and the length of the wire at the open position. The wire holding hole is formed as a wire holding hole that can be inserted in a direction. The wire holding hole has a contact wall portion at the front end and a wire insertion port at the rear end, and moves forward in the wire insertion direction. The other-stage electric wire holding portion corresponding to the electric wire pressure contact portion of the rear row of terminals extends in the front-rear direction at a position closer to the housing than the one step in the pressure contact direction. And an electric wire holding groove having an opening that opens toward the housing, and the electric wire holding groove is formed with at least a pair of holding protrusions protruding from the inner inner wall surface of the electric wire holding groove . A modular plug characterized by that. Back row of the terminals, as wire insulation displacement portions of the rear row of terminals is positioned in the pressure contact direction other party than wire insulation sites front row of terminals, the terminal of the rear column to the connecting portion from the wire pressing portion than the front row of terminal The modular plug according to claim 1, wherein the distance is set short.   3. The modular plug according to claim 1, wherein the terminal has a contact portion that contacts the housing in a press-contact direction at a held portion held by the housing.

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