JPH1126103A - Connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simply connect a cable with narrow pitch between contacts by making a female contact with the contact part of one end coming in contact with the tip side of a cable conductor longer than the contact part on the other side coming in contact with the base end side of the cable conductor. SOLUTION: A cable conductor 2b is held with a contact 30b" formed in a contact part 30b and a contact 30a' formed in a contact part 30a in the facing position. When the contact between the contact 30' of the contact part 30b and the tip 2d of the cable conductor 2b is released, the cable conductor 2b is held at equal pressure with the contact 30b" locating at the same distance from the base end 30c and the contact 30a'. Possibility of the deformation of a socket 35 is reduced, and thinning of a plate is made possible. Crimp or soldering for connecting the cable conductor and the contact is made unnecessary, bundle connection is made possible, and floating of the tip of the cable conductor from a cable groove is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector used for a small electronic device such as a notebook computer, and more particularly, to a connector for electrically connecting a large number of micro cables.

[0002]

2. Description of the Related Art Conventionally, a large number of extra-fine cables have been used for internal wiring of small electronic devices such as notebook computers.

[0003] As such a large number of extra-fine cables (hereinafter simply referred to as cables), a large number of single cables in which extra-fine conductors are arranged inside an insulator are assembled, and a plurality of extra-fine conductors are arranged in a row. There is known a flexible flat cable disposed inside an insulator, or a collection of a large number of micro coaxial cables.

On the other hand, a connector is used as a device for connecting a large number of these cables to respective terminals formed on a printed wiring board.

This connector has a socket having a plurality of female contacts and a plurality of male contacts corresponding to the plurality of female contacts. The male and female contacts are fitted to the corresponding female contacts. And a plug for electrical connection between both contacts.

Conventionally, in order to connect a corresponding plurality of cables to a plurality of male contacts provided on the plug, soldering is performed on each cable conductor and each corresponding male contact, or Each cable conductor and each corresponding male contact were crimped one by one via a crimping tool.

[0007]

According to the conventional connector described above, a crimping process or a soldering process must be performed to electrically connect each cable conductor and each male contact. Is complicated,
It was also a factor of incorrect wiring.

Further, according to the conventional connector, since each cable conductor and each male contact are connected by crimping or soldering, the occupied area occupied by the crimped or soldered portion is large. It has been difficult to further narrow the pitch between them (narrowing the pitch), thereby reducing the size of the connector itself.

In view of the above circumstances, an object of the present invention is to provide a connector which can easily connect a plurality of cables and further reduces the pitch between contacts.

[0010]

In order to solve the above-mentioned problems, a connector according to the present invention has a plurality of cable guide grooves which are bent in a substantially U-shape toward a tip at a predetermined pitch. An insulated cable holder in which each cable conductor extending from each cable terminal of the cable is bent and disposed in a U-shape along the corresponding plurality of cable guide grooves, and the corresponding plurality of cable guides Respectively inserted into the grooves, each of the cable conductors disposed in the cable guide groove is gripped by a pair of contact portions,
A plurality of female contacts of tuning fork type for electrical connection with the corresponding cable conductor, the length of one contact portion abutting on the tip side of the cable conductor,
A socket having a female contact formed longer than the length of the other contact portion abutting on the proximal end side of the cable conductor.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the connector according to the present invention will be described in detail.

FIG. 1 is a conceptual perspective view showing a main part of a connector 1 according to the present invention.

The connector 1 includes an insulative cable array member 7 for arranging the terminals 2a to 6a of a plurality of ultrafine cables 2 to 6 at predetermined pitches in a horizontal array. Each cable conductor 2b-6b extends from each terminal 2a-6a of the cable 2-6 supported by the member 7.

On the other hand, the cable holder 10 for arranging the cable conductors 2b to 6b of the aforementioned ultrafine cables 2 to 6 in a row at a predetermined pitch is formed of an insulator made of synthetic resin such as plastic. A concave portion 11 for positioning and housing the cable array member 7 is formed.

The cable holder 10 is brought into contact with the respective cable conductors 2b-6b extending from the cable array member 7 adjacent to the recess 11 and toward the tip 10a of the cable holder 10. A plurality of cable guide grooves 12 to 16 having a substantially U-shaped cross section are formed at a predetermined pitch and bent at substantially a U-shape toward the distal end without being formed.

According to such a cable holder 10, as shown by an arrow A in FIG.
When the cable conductors 2b to 6b are bent into a substantially U-shape along the respective forming directions of the corresponding cable guide grooves 12 to 16, as shown in the perspective view of FIG. , A plurality of cable guide grooves 12 to 1 corresponding to the respective cable conductors 2 b to 6 b of the ultrafine cables 2 to 6
6 and are arranged in a row and in a substantially U-shape so as to be exposed.

Therefore, according to the cable holder 10, the respective cable conductors 2 b to 6 b which are bent and exposed in a substantially U-shape can be used as the male contacts constituting the connector 1.

On the other hand, as shown by an arrow D in FIG. 3, the cable holder 10 having the respective cable conductors 2b to 6b exposed along the cable guide grooves 12 to 16 is connected to each of the corresponding cable conductors 2b to 6b. Is mounted in the socket 35 having the female contacts 30 to 34 disposed in the female contacts 3 corresponding to the respective cable conductors 2b to 6b.
0 to 34 come into contact with each other, and electrical connection between them is achieved.

Next, the female contacts 30 to 34 provided in the socket 35 will be described in detail. Since the female contacts 30 to 34 have the same structure, the female contact 30 and the cable conductor 2b connected thereto will be described in detail.

FIG. 4 is a conceptual sectional view of a main part of FIG. 3, particularly showing a connection structure between the female contact 30 and the corresponding cable conductor 2b. In FIG. 4, the same parts as those in FIG. 3 are indicated by the same reference numerals.

As shown in FIG. 4, a female contact 30 buried in a socket 35 composed of a housing has a pair of contact portions 30a, 30 each having a bifurcated tip.
b, a so-called tuning fork type female contact, in which the length of one contact portion 30b located particularly below is formed longer than the length of the other contact portion 30a located above.

The long contact portion 30b is connected to a second contact 30b 'formed at the tip and the second contact 30b'.
b ', and a third contact 30b "located closer to the base end 30c of the female contact 30 than the other contact portion 30a located above.
Is formed at a position facing the first contact point 30a 'formed at the tip of the first contact point.

One of the contact portions 30a and 30b of the female contact 30 described above is one of the contact portions 30a.
Is disposed at a position facing the base end 2c of the cable conductor 2b disposed in the cable guide groove 12 of the cable holder 10, and the other contact portion 30b is disposed at the distal end 2d of the cable conductor 2b. Is disposed at a position opposite to.

When the cable holder 10 is inserted into the socket 35 as shown by an arrow D in FIG. 4 using the female contact 30 having such a structure, as shown in FIG.
One end of the pair of contact portions 30a, 30b of the female contact 30, that is, the tip 2d of the cable conductor 2b corresponding to the second contact 30b 'of the one contact portion 30b whose length is set longer. , And the cable conductor 2b is fitted while being pulled from the base end 2c toward the front end 2d.

As described above, when the cable holder 10 is fitted and inserted, first, the second contact 30 of one contact portion 30b is inserted.
When the cable conductor 2b is pulled from the base end 2c toward the distal end 2d side, the distal end 2d, which is the free end of the cable conductor 2b, is inserted into the cable guide groove 12b. It is possible to prevent deformation such as loosening or floating inside.

Further, when the cable holder 10 is further inserted into the socket 35 from the position shown in FIG. 5, as shown in FIG. 6, one contact portion of the female contact 30, that is, the length is set longer. Of the contact portions 30b of the cable conductor 2b are in sliding contact with the tip 2d of the corresponding cable conductor 2b, and the second contact 3
The contact between Ob 'and the tip 2d of the cable conductor 2b is released. At this time, the first contact 30a 'of the other contact portion 30a abuts on the base end 2c of the cable conductor 2b, and the cable conductor 2b is connected to the third contact 30b "of the one contact portion 30b and the other. First contact 30 of contact portion 30a
a 'to hold the cable conductor 2b and the female contact 30 electrically.

As shown in FIG. 6, the cable conductor 2b
A third contact 30b formed on one contact portion 30b
And the first contact 30a 'formed on the other contact portion 30a at the opposing position, the second contact 30b' of the one contact portion 30b and the tip 2d of the cable conductor 2b. When the contact is released, the cable conductor 2b is gripped by the third contact 30b '' and the first contact 30a ', which are equidistant from the base end 30c of the female contact 30, with uniform pressure.

Therefore, compared with the case where the cable conductor 2b is gripped with different pressures by the second contact 30b 'and the first contact 30a' at different distances from the base end 30c of the female contact 30, the housing Socket 3
The risk of deformation of the socket 35 itself is reduced as much as possible. Therefore, in order to achieve a thinner socket 35, deformation of the socket 35 is prevented as much as possible even if the thickness of the socket 35 is reduced and its mechanical strength is reduced. The Rukoto.

When the housing of the socket 35 is formed of a material or a structure having high mechanical strength, it is not necessary to consider the above points, and the cable conductor 2b is placed at an equal distance from the base end 30c of the female contact 30. The third contact 30b '' and the first contact 30a 'may be gripped, and the second contact 30b' and the first contact 30a 'at different distances from the proximal end 30c of the female contact 30 may be used. May be gripped.

[0030]

As described above, in the connector according to the present invention, a cable holder having a plurality of cable guide grooves bent and formed in a substantially U-shape at a predetermined pitch is provided along each cable guide groove. Since the cable conductors are arranged so that each cable conductor is bent in a U-shape, each cable conductor bent in the U-shape can be used as a plug of a connector. It is not necessary to perform the connection work by crimping or soldering each of the cable conductor and each contact, and collective connection is possible. Therefore, the connection work of the connector can be extremely easily performed, and incorrect wiring can be prevented.

Further, in the connector according to the present invention, unlike the conventional connector, there is no crimping portion or soldering portion connecting each cable conductor and each contact, so that the pitch between the cable conductors corresponding to the contacts is further narrowed. The pitch can be reduced, so that the connector can be further reduced in size.

Further, in the connector according to the present invention,
In the socket into which the cable holder having each of the above-described cable conductors is fitted, the length of one contact portion that abuts on the distal end side of the cable conductor is made longer than the length of the other contact portion that abuts on the proximal end side of the cable conductor. The length of the tuning fork-type female contact, which is longer than that of the cable conductor, is arranged so that the free end of each cable conductor is prevented from loosening or floating in the cable guide groove. Therefore, stable electrical connection with each female contact can be achieved, and a highly reliable connector can be provided.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a cable holder of a connector of the present invention.

FIG. 2 is a conceptual perspective view showing the cable holder after assembly is completed.

FIG. 3 is a conceptual perspective view showing a socket and a cable holder.

FIG. 4 is a conceptual cross-sectional view showing a state where a cable holder is mounted on a socket.

FIG. 5 is a conceptual cross-sectional view showing a state where the cable holder is mounted on the socket.

FIG. 6 is a conceptual cross-sectional view showing a state where a cable holder is mounted on a socket.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Connector 2-6 ... Cable 2a-6a ... Cable terminal 2b-6b ... Cable conductor 2c ... Base end side of cable conductor 2d ... Tip side of cable conductor 10 ... Cable holder 12-16 ... Cable guide groove 30 ... Female contact 30a, 30b contact part 30a 'first contact 30b' second contact 30b "third contact

Claims (2)

[Claims] 1. A cable having a plurality of cable guide grooves which are bent at a predetermined pitch toward a distal end in a substantially U-shape and correspond to respective cable conductors extending from respective cable terminals of the plurality of cables. Insulating cable holders bent and arranged in a U-shape along a plurality of cable guide grooves, and each of the plurality of corresponding cable guide grooves is inserted into a corresponding one of the plurality of cable guide grooves, and is disposed in the cable guide grooves. A plurality of tuning-fork type female contacts for gripping each cable conductor with a pair of contact portions and electrically connecting with the corresponding cable conductor, wherein one of the contact portions abutting on the distal end side of the cable conductor; A connector having a female contact having a length longer than the length of the other contact portion abutting the base end of the cable conductor. Ta. 2. A first contact is formed at a distal end of the other contact portion abutting on a proximal end side of the cable conductor, and a distal end is formed on one contact portion abutting on a distal end side of the cable conductor. The connector according to claim 1, wherein a third contact is formed at a position facing the second contact formed at the first contact and the first contact formed at the other contact portion. .