JP3227565B2 - ID connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a press-connecting connector, and more particularly to a press-connecting connector having a structure in which a mating base portion provided with a contact is pushed into a cable insertion insulating stand for introducing and holding a cable to connect a core wire of the cable to the contact. Belongs to the connector.

[0002]

2. Description of the Related Art A sheath in which a plurality of core wires are covered with a sheath is removed at its end, and the core wires (conductor portions) are exposed and inserted into a cable insertion insulating stand. 2. Description of the Related Art A press-connecting connector having a structure in which a contact of a mating base portion is pushed in to connect a core wire of a cable to the contact has been widely used because the connection between the core wire and the contact is easy. One example of such a conventional press-connecting connector is shown in FIGS.
(D). In this press-connecting connector, the sheath 32 is removed at the end of the cable 30 to expose the core wires 31a and 31b, and these core wires 31a and 31b are connected to the cable 30.
A cable insertion portion 22x for extending the cable 30 by a predetermined length in parallel with the central axis thereof to introduce a terminal portion of the cable 30 to hold a portion including the core wires 31a, 31b and the sheath 32, and to be connected to the cable insertion portion 22x. Core insertion portions 23x and 23y which have a tapered tapered shape and a portion having a diameter substantially equal to that of the core wires 31a and 31b by a predetermined length for introducing and holding the core wires 31a and 31b, and these core wire insertion portions A cable insertion insulating base 20x having contact insertion holes 24x and 24y formed in the insulating base main body 21x and provided with contact insertion holes 24x and 24y provided in the portions having substantially the same diameter as the core wires 31a and 31b of 23x and 23y. Core wires inserted corresponding to the respective contact insertion holes 24x and 24y of the insulating base 20x and held by the core wire insertion portions 23x and 23y. 1a, 31b with corresponding connection contacts 12x, has a configuration having a mating base portion 10x having a 12y insulating base 11x.

The stoppers 2 are provided at portions of the contact insertion holes 24x, 24y which cross the core wire insertion portions 23x, 23y.
The stoppers 241 stop the contacts 12x and 12y. this is,
This is because the contacts 12x and 12y do not hinder the insertion of the cable 30 when the cable 30 is inserted into the cable insertion insulating stand 20x.

The contacts 12x and 12y are provided with slits each having a width slightly smaller than the diameter of the core wires 31a and 31b in the insertion direction. It has a structure to connect. Cable 3
0, first, the mating base portion 10 is inserted into the contact insertion holes 24x and 24y of the cable insertion insulating base 20x.
The x contacts 12x and 12y are inserted into the stopper 241 until they stop. Subsequently, the core wire 3 of the cable 30
Terminal portions 1a and 31b which are barely extended by a predetermined length in parallel with the central axis are inserted and held in the cable insertion portion 22x and the core wire insertion portions 23x and 23y of the cable insertion insulating stand 20x. At this time, since the core wire insertion portions 23x and 23y have a tapered shape, the cable 30 can be easily and accurately inserted to a predetermined position (see FIGS. 9A and 9B). ). Then, the contacts 12x and 12y are brought into contact with the stopper 2 by strongly pressing the cable insertion insulating base 20x and the mating base 10x against each other.
The core wires 31a, 31b held by the core wire insertion portions 23x, 23y are inserted into the slits by breaking through the core 41, and the core wires 31a, 31b are connected to the contacts 12x, 12y. The connection between the press-connecting connector and the external circuit is made by the contacts 12x and 12y of the mating base 10x.
And the terminal of the external circuit.

[0005]

In this conventional press-connecting connector, a plurality of core wire insertion portions 2 for introducing and holding terminal portions whose core wires 31a and 31b extend in parallel with the central axis of the cable.
3x and 23y are arranged in a line, and these core wire insertion portions 23x and 23y are tapered to facilitate the introduction of the core wires 31a and 31b. There has been a problem that the arrangement interval of 23y is widened and the overall arrangement size is large, so that it is difficult to reduce the pitch of the contacts and to miniaturize the connector itself. Further, when a coaxial cable having a drain wire as a ground wire (handled as one core wire) is used for this press-connecting connector, the amount of stripping of the outer conductor (drain wire) increases and the length of the non-coaxial portion increases. There is a problem that the high frequency characteristics are deteriorated.

SUMMARY OF THE INVENTION It is an object of the present invention to facilitate the narrowing of the contact pitch, to reduce the size of the connector itself, and to shorten the non-coaxial portion of the coaxial cable when a coaxial cable is used. An object of the present invention is to provide a press-connecting connector capable of reducing deterioration of characteristics.

[0007]

The present invention has the following means in order to achieve the above object. That is, in the insulation displacement connector of the present invention, the sheath is removed at the end portion of the insulating base body made of a predetermined insulating material, the first core wire extends in the direction of the central axis of the cable, and the second core wire is formed with respect to the first core wire. A cable insertion portion for introducing a terminal portion of the cable bent at an angle of 90 ° in the direction of the central axis of the cable to hold a portion including the first and second core wires and the sheath of the cable; The first core wire is provided by being connected to the back side and becoming thinner toward the back and becoming approximately the same size as the diameter of the first core wire. A first core wire insertion portion which is connected to a side of the cable insertion portion and is provided with the second core wire between the first core wire and the first core wire when the cable is introduced into the cable insertion portion; ° A second core wire insertion portion having a gap having substantially the same dimension as the diameter of the second core wire to be introduced and held while maintaining an angle, and the first and second core wire insertion portions of the first and second core wire insertion portions, respectively; A cable insertion insulating base having first and second contact insertion holes vertically extending across a portion for holding the corresponding core wire, and a cable insertion insulating base inserted correspondingly into the first and second contact insertion holes, respectively. And a mating base portion having first and second contacts respectively connected to the first and second core wires of the cable introduced and held in the first and second core wire insertion portions. ing.

Further, the second core wire insertion portion is provided with the second core wire insertion portion.
The width of the core wire is wide at the inlet of the core wire and becomes narrower in the direction of introduction of the second core wire and becomes approximately the same size as the diameter of the second core wire. And the first and second
And a plurality of sets each including the core wire insertion portion and the cable insertion portion, and the first and second contacts.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In one embodiment of the present invention, a first core wire extends for a predetermined length in the direction of the central axis of a cable, and a second core wire is bent at an angle of 90 ° with respect to the first core wire. A cable insertion portion for introducing and holding the terminal portion of the cable in the shape as it is, first and second core wire insertion portions connected to the cable insertion portion, and predetermined portions of the first and second core wire insertion portions. A cable insertion insulating stand formed with first and second contact insertion holes vertically crossing the position;
The first and second core wires are inserted corresponding to the first and second contact insertion holes of the cable insertion insulating base and are connected to the first and second core wires held by the first and second core wire insertion portions. Second
The first core wire insertion portion is connected to the back side of the cable insertion portion, and becomes thinner toward the back, and has substantially the same diameter as the first core wire. From the point where the dimensions are reached, the portion having the same dimension is maintained for a predetermined length, the second core wire insertion portion is connected to the side of the cable insertion portion, and the cable insertion portion is connected to the cable insertion portion. When introducing the second core wire, a gap having substantially the same dimension as the diameter of the second core wire is set so as to introduce and hold the second core wire while maintaining an angle of 90 ° with the first core wire. It has a structure that has only the length.

With such a configuration and structure,
Since the cable and its core wire can be easily and accurately introduced into the connection position with the contact, and since the first and second contacts are arranged at an angle of 90 ° to each other in the width direction, The dimension of each part on the second contact side is reduced, and the interval between the first and second contacts and the interval between adjacent contacts, that is, the contact pitch can be narrowed, and the pitch of the contacts can be easily narrowed. And the size of the connector itself can be reduced.

Also, even when applied to a coaxial cable,
The drain wire can be treated as the second core wire, and the non-coaxial portion and at least the length of the drain wire that can be connected to the second contact can be shortened, so that the deterioration of high-frequency characteristics can be reduced. .

[0012]

Next, an embodiment of the present invention will be described with reference to the drawings. FIGS. 1A to 1E are a plan view and a side view as viewed from various directions, and a cross-sectional view when a cable is connected, showing a first embodiment of the present invention. In this embodiment, the sheath 32 at one end of the cable 30 is removed, and the first core wire 31a is exposed in the center axis direction of the cable 30 and extends for a predetermined length.
The second core wire 31b is bent at an angle of 90 ° with respect to the first core wire 31a, and a bare end portion extending by a predetermined length is introduced in the shape of the terminal in the direction of the central axis of the cable 30. , 31b, and a cable insertion portion 22 for holding a portion including the sheath 32, a first core wire insertion portion 23a for holding the core wire 31a, and a second core holding portion for holding the core wire 31b.
Core insertion part 23b and core insertion parts 23a and 23b
A cable insertion insulating base 20 having first and second contact insertion holes 24a, 24b vertically traversing each at a predetermined position in an insulating base body 21, and contact insertion holes 24a, 24b of the cable insertion insulating base 20. Core wire 3 inserted correspondingly to and held by core wire insertion portions 23a and 23b.
First and second contacts 1 correspondingly connected to 1a, 31b
2a and 12b have a mating base 10 provided on the insulating base 11.

The first core wire insertion portion 23a is provided so as to be connected to the back side of the cable insertion portion 22. The first core wire insertion portion 23a becomes thinner toward the back and becomes approximately the same size as the diameter of the core wire 31a. Is held for a predetermined length to introduce and hold the core wire 31a. The second core wire insertion portion 23b is provided so as to be connected to the lateral side of the cable insertion portion 22. 3
0, a gap having substantially the same size as the diameter of the core wire 31b (however, the core wire 31b is inserted so as to introduce and hold the core wire 31b while maintaining an angle of 90 ° with the core wire 31a).
b is widened at a predetermined length).

Guide pins 13a and 13b are provided in the mating base portion 10, and pin insertion holes 25a and 25b are provided in the cable insertion insulating base 20, respectively. The guide pins 13a and 13b are provided in the pin insertion holes 25a and 25b. 13b is inserted so that the mating positional relationship between the mating base portion 10 and the cable insertion insulating base 20 is accurately maintained.

FIGS. 2 (a) to 2 (e) and 3 (a) to 3 (g) show a plan view, a side view and the like of the mating base portion 10 and the cable insertion insulating stand 20 in this embodiment as viewed from each direction. Shown in As in the conventional example, the contacts 12a and 12b are provided with slits connecting the core wires 31a and 31b, and the first contact insertion hole 24a is provided with a stopper 241.

FIGS. 4A to 4D are cross-sectional views of the contacts 12a and 12b as viewed from each direction when the contacts 12a and 12b are inserted up to the position where they stop at the position of the stopper 241. FIGS. 5 (a) to 5 (c), 6 (a) to 6 (c) show cross-sectional views as viewed from each direction before, after and after connecting the core wire of the inserted cable to the contact. 7 (a) to 7 (c).

FIGS. 5 and 6 show the contacts 12a and 12b.
Is stopped at the position of the stopper 241, the core wire 31a of the cable 30 is smoothly inserted into a predetermined position (back) of the core wire insertion portion 23a without being obstructed by the contact 12a. In addition, the core wire insertion portion 23a is wide at the entrance portion, becomes thinner toward the back, and is tapered until it has substantially the same size as the diameter of the core wire 31a, so that the core wire 31a can be easily and smoothly introduced. In addition, the core wire 31a is accurately introduced and held at the connection position with the contact 12a. Also, the core wire insertion portion 23
b is also wide at the entrance portion and has a tapered shape that becomes thinner as it goes further (goes in the direction of introducing the cable 30), so that the core wire 31b can be easily introduced.

After the cable 30 is inserted into the cable insertion insulating base 20, the cable insertion insulating base 20 and the mating base 10
Are strongly pressed against each other, so that the contact 12
a breaks through the stopper 241, and contacts 12a,
The core wires 31a and 31b held by the core wire insertion portions 23a and 23b are sandwiched between the slits 12b, and the contacts 12a and 12b are connected to the core wires 31a and 31b (see FIG. 7).

In this embodiment, the contacts 12a and 12a
b are arranged at an angle of 90 ° to each other in the width direction of the contacts, so that the dimension of each part on the second contact 12b side is set to the first dimension as compared with the conventional example in which the width directions are aligned. Therefore, the distance between the first and second contacts, the distance between adjacent contacts, that is, the pitch of the contacts can be reduced, and the contact can be narrowed. The pitch can be easily formed, and the dimensions of the connector itself can be reduced (downsized). Further, when a coaxial cable is used in this embodiment, deterioration of high frequency characteristics can be reduced, as described in the embodiment of the present invention.

FIG. 8 is a sectional view showing a second embodiment of the present invention. This embodiment is obtained by arranging a plurality of sets each including the first and second core wire insertion portions 23a and 23b, the first and second contacts 12a and 12b, and the parts associated therewith in the first embodiment. It is. It is apparent that the second embodiment has the same operation and effect as the first embodiment. In FIG. 8, the contacts 41 of the female connector 40 are connected to the contacts 12a and 12b of the mating base 10a (not shown), and the male connector (not shown) is mated with the female connector 40. Connect with contact pins of

[0021]

As described above, according to the present invention, there is provided a cable in which the first core extends for a predetermined length in the direction of the central axis of the cable and the second core is bent at an angle of 90 ° with respect to the first core. A cable insertion portion for holding the portion including the first and second core wires and the sheath by introducing the terminal portion in the shape of the cable in the central axis direction of the cable, and introducing the first and second core wires connected to the cable insertion portion A cable insertion insulating table having first and second core wire insertion portions for holding and holding, and first and second contact insertion holes vertically crossing predetermined positions of the first and second core wire insertion portions; The first and second contact insertion holes of the cable insertion insulating stand are inserted into the first and second contact insertion holes.
The first and second core wires held by the second core wire insertion portion and the mating base portion provided with the first and second contacts correspondingly connected to the first and second core wires are configured to have the first and second core wires.
Are arranged at an angle of 90 ° to each other in the width direction, so that the size of each part on the second contact side can be made smaller than the size of each part on the first contact side. The distance between adjacent contacts and the distance between adjacent contacts can be reduced, so that the pitch of the contacts can be easily reduced, and the dimensions of the connector itself can be reduced. Further, when a coaxial cable is used, the non-coaxial portion can be shortened, so that there is an effect that deterioration of high frequency characteristics can be reduced.

[Brief description of the drawings]

FIG. 1 is a plan view, a side view, and a cross-sectional view of a cable connection state of a first embodiment of the present invention viewed from various directions.

FIG. 2 is a plan view and a side view of the mating base portion of the embodiment shown in FIG. 1 as viewed from each direction.

FIG. 3 is a plan view, a side view, and a cross-sectional view of the cable insertion insulating stand of the embodiment shown in FIG. 1 as viewed from each direction.

4 is a cross-sectional view of the mating base portion and the cable insertion insulating base of the embodiment shown in FIG. 1 in a mating state before cable insertion, as viewed from each direction.

FIG. 5 is a cross-sectional view of the cable before insertion of the embodiment shown in FIG. 1, and the mating base portion and the cable insertion insulating base in a mating state as viewed from each direction.

6 is a cross-sectional view of the mating base portion and the cable insertion insulating base of the embodiment shown in FIG. 1 in a mating state after cable insertion, as viewed from each direction.

FIG. 7 is a cross-sectional view of the mating base portion and the cable insertion insulating base in a state where the core wire of the inserted cable and the contact of the embodiment shown in FIG. 1 are connected to each other;

FIG. 8 is a sectional view showing a second embodiment of the present invention.

FIG. 9 is a cross-sectional view and a side view showing an example of a conventional press-connecting connector in a state where a core wire and a contact are connected before and after cable insertion.

[Explanation of symbols]

 10,10x mating base portion 11,11x insulating base 12a, 12b, 12x, 12y contact 13a, 13b guide pin 20,20a, 20x cable inserting insulating base 21,21a, 21x insulating base body 22,22x cable inserting part 23a , 23b, 23x, 23y Core wire insertion portion 24a, 24b, 24x, 24y Contact insertion hole 25a, 25b Pin insertion hole 30 Cable 31a, 31b Core wire 32 Sheath

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H01R 4/24

Claims (3)

(57) [Claims] A sheath is removed at a terminal portion of an insulating base body made of a predetermined insulating material, a first core wire extends in a cable central axis direction, and a second core wire is 90 ° with respect to the first core wire.
A cable insertion portion for introducing a terminal portion of the cable bent at an angle in the central axis direction of the cable to hold a portion including the first and second core wires and the sheath of the cable, a back side of the cable insertion portion The first core wire is introduced and held by keeping a portion having the same dimension by a predetermined length from a point where the diameter becomes substantially the same as the diameter of the first core wire. First
Core insertion portion, which is provided so as to be connected to the lateral side of the cable insertion portion, and when the cable is introduced into the cable insertion portion, the second core wire is turned 90 ° with the first core wire.
A second core wire insertion portion having a gap having substantially the same dimension as the diameter of the second core wire to be introduced and held while maintaining the angle of the first core wire, and the first and second core wire insertion portions of the first and second core wire insertion portions, respectively. A cable insertion insulating table having first and second contact insertion holes formed to vertically cross a portion for holding the two core wires, and correspondingly inserted into the first and second contact insertion holes of the cable insertion insulating table, respectively. Of the cable inserted into and held by the first and second core wire insertion portions.
And a mating base portion having first and second contacts correspondingly connected to the second core wire and the second core wire, respectively. 2. The second core wire insertion portion is wide at an introduction port of the second core wire, and becomes narrower in the direction of introduction of the second core wire, and has approximately the same size as the diameter of the second core wire. 2. The press-connecting connector according to claim 1, wherein the gap having the same size is formed so as to be maintained for a predetermined length. 3. The press-connecting connector according to claim 1, wherein a plurality of sets each including the first and second core wire insertion portions and the cable insertion portion, and the first and second contacts are arranged.