JPS5914864B2 - connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a connector that allows easy and reliable connection between each terminal of a plug and a jack, and between a terminal in a plug or jack and a cord.

For example, connectors are widely used when connecting electrical devices such as telephones to coats, or when connecting cords to cords.

This type of connector is composed of a jack and a plug that can be inserted into and removed from the jack, and the jack and the plug are each provided with terminals that contact each other to establish an electrical connection. ``0 However, with conventional connectors of this type, when connecting the cord to the terminal of a plug or jack, the outer sheath and insulation coating of the cord are removed in advance to expose the internal conductor, which is a troublesome process. The connection between the terminal and the cord was also complicated, and there was also a risk that a reliable electrical connection could not be made.

In addition, there are some cables in which only the outer sheath of the cord is removed and the terminal is pushed through the insulation coating almost at a right angle to make the connection work easier by making contact between the terminal and the conductor. If so, there is a risk that the conductor will be cut when the terminal is pushed in, and there is also the disadvantage that it is difficult to obtain a reliable contact state. Furthermore, there was a risk that the connection between the respective terminals of the plug and the jack could not be made properly due to the formation of an oxide film. ! 5 The present invention was made based on the above circumstances, and its purpose is to facilitate the terminal processing of cords, the connection between each terminal of a plug and a jack, and the connection between the terminals inside a plug or jack and the cord. An object of the present invention is to provide a connector in which all connections between the connectors can be easily and reliably performed.

Hereinafter, the configuration of the present invention will be explained based on various embodiments.

First, the embodiment shown in FIG. 1 and FIG. 1 will be described.

1 to 3 show the assembled state of the connector 5, which is composed of a plug 1 and a jack 2 into which the plug 1 is appropriately inserted for electrical connection. Further, the plug 1 includes a plug housing 11 made of an insulating material (for example, synthetic resin) and a cord retainer 1, as shown in FIG.
2, and four push-in terminals 13 made of conductive metal plates...
As shown in FIG. 5, the jack 2 includes a jack housing 21 and a terminal cover 22 made of an insulating material (for example, synthetic resin), and four sliding terminals 23 made of elongated conductive metal plates. ing. In the plug housing 11, one end of the connection cord 3 is connected to each of the push-in terminals 13. The connecting cord 3 has a core thread 31 made of insulating fiber as shown in FIGS. 6A and 6B.
Four individual cords 34, each consisting of a band-shaped conductor 32 spirally wound around the outer periphery and an insulating sheath 33 wound around the outside thereof, are arranged parallel to each other in a plane and are integrally covered with an outer sheath 35. That's what happens. The plug housing 11 has a substantially rectangular outer shape as shown in FIG. 4, and an internal space 111 communicates with the outside through an opening 112 at one end and an opening 113 at the top.

Further, four terminal engaging grooves 114 are provided in parallel from the other end surface on the opposite side to the opening 112 to the upper surface. Further, a locking pawl 115 is provided on the lower surface of the plug housing 11, and a pair of locking recesses 116, 116 (only one surface is shown) are provided on the left and right inner surfaces of the internal space 111, respectively. Furthermore, as shown in FIG. 2, a pair of recesses 117, 117 and an abutting protrusion 118 are provided on the inner bottom surface of the internal space 111, extending from the opening 112 at one end toward the other direction.
The cord presser 12 is approximately U-shaped as shown in FIG. 4, and has a pair of locking claws 121, 121 on each of the left and right outer surfaces, and is attached to the housing with the U-shaped opening facing downward. 11 into the internal space 111 through the upper surface opening 113, each locking pawl 121... fits into the locking recess 116... in the housing 11, and as shown in FIGS. 1 to 3. Thus, the upper opening 113 of the housing 11 is closed.

Further, as shown in FIG. 2, a pair of crushing protrusions 122 and 123 are provided on the inner surface of the upper wall of the cord presser 12. One of the crushing protrusions 122 is a recess 1 on the housing 11 side.
17 and 117 from above, and the other crushing protrusion 12
3 is arranged to face the upper surface of the abutment protrusion 118. Further, a crushing protrusion 123 is provided on the lower surface of the cord presser 12.
In the more anterior part, there are four grooves 124 diagonally upward.
The plug housing 11 also has grooves 119 facing these grooves 124 as shown in FIG. 7A.
The upper and lower grooves form a circular hole that intersects with the plug insertion/removal direction. As shown in FIG. 2 or 4, the plug-in terminal 13 has a locking protrusion 131 at the center of the tip, and this protrusion 131
It has a protrusion 132 on the side portion thereof, and its base end is connected to the sliding terminal 23? (The contact surface 133 is
When the locking protrusion 131 is fitted into each terminal engaging groove 114 of the housing 11 with the contact surface 133 facing outward, the protruding protrusion 132 is inserted into the circular hole formed by the grooves 119 and 124. I come to do it.

Further, locking claws 134, 13 are provided on the left and right edges of the locking protrusion 131.
4 is provided, and the terminal 13 is inserted into the engagement groove 114 at an appropriate angle (for example, 45 mm insertion) intersecting the plug insertion direction, and the respective locking claws 134, 134 bite into the inner surface of the engagement groove 113. It will now be attached to plug 1. On the other hand, the jack housing 21 of the jack 2 has an approximately rectangular parallelepiped outer shape, and an internal space 211 is communicated with the outside through a plug insertion/removal port 212 provided at one end.

Further, an opening 213 is provided in the bottom wall to expose the locking pawl 115 of the plug housing 11. Therefore, when the plug 1 is inserted into the jack housing 11 from the insertion/removal port 212 side, the locking pawl 115 comes into sliding contact with the inner bottom surface of the jack housing 21 and gradually bends inward.
When the plug 1 reaches a predetermined position, the locking pawl 115 falls into the opening 213 due to its own elastic return force, and at the same time locks onto the edge of the opening 213 to prevent the plug 1 from being pulled out. Become. Further, as shown in FIG. 1, four terminal lead-out holes 214 are provided in the upper wall of the jack housing 21 in a staggered manner so as to communicate with the internal space.
Through this, one end of each of the sliding terminals 23 (lead wire connection portions 231 to be described later) is led out from the inside of the housing 21 to the outside so as to be substantially orthogonal to the plug insertion/removal direction.
Furthermore, locking holes 215, 215 are provided in the upper side of the jack housing 21, as shown in FIG. As shown in FIG. 2, the sliding terminal 23 is bent along the inner surface of the upper wall of the jack housing 21 in the plug insertion direction (the direction opposite to the plug insertion/removal port 212) at an angle of about 602 degrees, and has an elongated bifurcated upper end. The lead wire connection portion 231 is located downward.

The end of the central groove of the connecting portion 231 widens into a V-shape, and the tip of the connecting portion 231 is sharpened. Therefore, when the plug 1 is inserted into the housing 21 through the plug insertion/removal port 212, the contact surface 133 of each plug-in terminal 13 comes into contact with the lower half of the sliding terminal 23, and the plug-in terminal 1
The plug 1 is inserted while the plug 3 is strongly slid onto the sliding terminal 23. The terminal cover 22 is attached to the upper surface of the jack housing 21 and the sliding terminals 23 and
As shown in FIG. 5, the locking claws 221, 221 that lock into the locking holes 215, 215 of the housing 21 protrude downward from both the left and right sides, and the one end side Insertion holes 222 for inserting one end of each of the four lead wires 4 are continuously provided, and the terminal cover 2
2, lead wires 4 are installed at both sides of each sliding terminal 23.
A groove 223 having a semicircular cross section is provided to receive the air from above. Note that the lead wire 4 used here is formed by applying an insulating coating 42 to a conductor 41. The connector configured as described above is assembled as follows.

First, only the outer sheath 35 at the tip of the connection cord 3 is removed to expose the individual cord 34, and the tip of the cord 34 is inserted into the plug housing 11 through the opening 112 at one end, and the individual cord 34 is inserted into the groove 119. , and abuts the tip of the outer sheath 35 against the abutment protrusion 118.

Next, attach the cord presser 12 to the upper opening 113 of the housing 11.
When the cord presser 12 is fitted inside and pushed in strongly, the locking claws 121 of the cord presser 12 engage the locking recesses 116 in the housing 11.
・The cord presser 12 is locked in the housing 11, but at this time, the individual cord 34 is held on top of the insulation coating 33 by the abutting protrusion 118 and the crushing protrusion 123 as shown in FIG. 7B. The tips of the individual cords 34 are bent upward as they are strongly crushed, and the grooves 119 of the plug housing 11 are bent upward.
The position is controlled within the circular hole formed by the groove 124 of the cord presser 12.

Further, the outer cover 35 is strongly crushed by another crushing protrusion 122 from above. Then, when the thrust terminals 13 are firmly inserted into the respective terminal engagement grooves 114 of the housing 11 from diagonally upward, the flexible core thread 31 is located at the center of the individual cord 34, so that As shown in FIG. 7C, the thrusting protrusion 132 pushes the core yarn 31 from the tip of the individual cord 34 into the band-shaped conductor 32 formed by spirally winding a band-shaped copper foil or the like.

Each push-in terminal 13... is inserted into the housing 1 by biting the locking claw 134 into the inner surface of the terminal engagement groove 114.
1. The protrusion 132 is the seventh
As shown in FIG. A strong pressure contact force is generated between the two, and the electrical connection between the two becomes reliable. In this case, since the tip of the individual cord 34 is held obliquely upwardly bent by the circular hole, the crushed portion formed by the abutment projection 118 and the crushing projection 123 functions as a stopper. death,
This will reliably prevent the individual cords 34 from escaping. Furthermore, the connection cord 3 itself is reliably prevented from coming off by another crushing protrusion 122. - On the other hand, the four sliding terminals 23 on the jack 2 side are connected to the lead wire connection portion 23 as shown in FIG.
1 is attached to the jack housing 21 by protruding outward from the terminal lead-out hole 214.

Therefore, each end of the four lead wires 4... is covered with an insulating coating 4.
2 into the terminal cover 22 through the insertion hole 222 without removing the terminal cover 22, and then attaching the terminal cover 22 to the jack housing 21 as shown in FIGS. While the insulation coating 42 is being broken by the lead wire connection portion 231 of the terminal 23, the connection portion 2
31 into the central groove, and the internal conductor 41 is strongly pressed against the lead wire connection part 231 so that the four lead wires 4 are electrically connected simultaneously and reliably. become. To connect the plug 1 and the jack 2 in this manner, it is sufficient to simply insert the plug 1 into the jack 2 through the insertion/removal port 212.

That is, when the plug 1 is inserted into the jack 2 while the locking claw 115 is in sliding contact with the inner bottom surface of the jack housing 21, when the plug 1 reaches a predetermined position, the locking claw 115 is inserted into the jack housing 21. The plug 1 falls into the opening 213 of the plug 21 and is locked to the edge of the opening 213, thereby preventing the plug 1 from being pulled out. At this time, the push-in terminal 13 on the plug 1 side strongly slides onto the sliding terminal 23 on the jack 2 side, displacing the sliding terminal 23 from the imaginary line position in FIG. A strong pressure contact force is generated due to the elastic return force of the sliding terminal 23. Moreover, even if an oxide film is formed on the surface of these terminals, the oxide film is quickly removed by the sliding contact between the terminals 13 and 23, and the electrical connection between the terminals 13 and 23 is always good. Become. Next, in order to remove the plug 1 from the jack 2, the locking claw 115 in the opening 213 is pushed from the outside to move the locking claw 115 into the opening 213.
3, and in this state, pull out the plug 1 from the jack housing 21.

Therefore, according to this connector, the plug housing 11
The cord presser 12 is engaged with the cord holder 12 to bend the tip of the individual cord 34 in a direction crossing the plug insertion/removal direction and press it strongly, and the plug-in terminal 13 is inserted from the tip of the individual cord 34, so that the conductor There is no risk of cutting the conductor 32, and the terminal 13 can be brought into strong pressure contact with the conductor 32 over a wide area, so that a reliable electrical connection can be obtained.

Also, since the push-in terminal 13 on the plug 1 side and the sliding terminal 23 on the jack 2 side are made to slide together, both terminals 1
The electrical connection between 3 and 23 is always stable and good. Note that the present invention is not limited to the above embodiments, and can be modified in various ways. For example, as shown in FIG. 8, the insertion direction of the insertion terminal 13 may be perpendicular to the plug insertion/removal direction, and the individual cord 34 of the connection cord 3 may be inserted into the core as shown in FIG. A plurality of thin round wires serving as the conductor 3Z may be wound around the outer periphery of the thread 31. Furthermore, the connection cord and the push-in terminal may be attached to the jack housing side, and the sliding terminal may be attached to the plug housing side.

[Brief explanation of the drawing]

1 to 7 show an embodiment of the present invention,
Fig. 1 is a partially cutaway plan view, Fig. 2 is a longitudinal sectional view,
Figure 3 is a cross-sectional view of Figure 1, Figures 4 and 5 are exploded perspective views of different parts, Figure 6A is a cross-sectional view of the connecting cord, and Figure B is a cross-sectional view of the same cord. FIGS. 7A to 7D are enlarged sectional views for explaining the connection process of the connection cord, FIG. 8 is a partial sectional view showing another embodiment, and FIG. 9 is a perspective view showing the configuration.
The figure is a perspective view showing a modification of the connection cord. 1...Plug, 11...Plug housing,
119...Groove, 12...Cord presser,
123... Crushing protrusion, 124... Groove,
13...Push-in terminal, 132...Push-in projection, 2...Jack, 21...Jack housing, 23...Sliding terminal , 3...
... Connection cord, 31 ... Core thread, 32 ...
... Band-shaped conductor, 33 ... Insulation coating, 34.
...Individual code, 35...Outer cover.

Claims (1)

[Claims] 1. In a connector that connects the end of a connecting cord made of an individual cord insulatingly coated core thread and conductor with an outer sheath to a plug or jack, one of the plug or jack is connected to the tip of the connecting cord. a housing that is inserted from one end side with the outer sheath removed; a cord presser that engages with the housing to crush the individual cords of the connection cord from above the insulation coating and bend the tip of the connection cord; The plug or jack is provided with a push-in terminal that is inserted and engaged in a direction crossing the plug insertion/removal direction, and a part of the plug or jack is inserted into the individual cord from the tip end face of the cord and press-contacted with the conductor. A connector characterized in that the other one is provided with a sliding terminal that comes into sliding contact with the push-in terminal.