JPH089900Y2 - Electrical connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION << Industrial Application Field >> The present invention relates to an electric connector for a shielded wire used in an electronic control device or the like.

<< Prior Art >> In the conventional connector of this type, as shown in FIG. 7, the outer coating g at the tip of the shielded electric wire a is peeled off to separate it into a shield b and a signal line c. The wire is connected to the contact terminal e of the connector body d, and the signal line c is connected to the contact terminal f of the connector body d by a wire connection method such as press contact.

However, in the above-mentioned conventional example, the shield b is formed as a single wire and connected to the contact terminal e of the connector body d, and the signal line c is connected to the contact terminal f of the connector body d by a wire connection method such as pressure connection. As described above, it is necessary to separately connect the shield b and the signal line c to the contact terminals e and f, which makes continuous and automated wiring work difficult. Further, since the shield of the signal line c is released, the shield effect is essentially equal.

The applicant of the present invention has previously proposed a device for remedying such drawbacks.

That is, the present invention, as shown in FIG. 8, has a shield crimping portion 45 having a crimping piece 44 for crimping the contact holding portion 41 and the shield 43 of the shielded electric wire 42 to the shield outer tubular member 40.
And a cover crimping portion 48 having a crimping piece 47 for crimping the outer coating 46 of the shielded wire 42, and a contact holding portion.
The jig insertion ports 49 and 50 are provided in 41, the signal wire crimping portion 57 having the crimping piece 56 for crimping the signal wire 55 of the shielded electric wire 42 is provided in the signal wire contact 51, and the contact holding portion 41 of the shield outer tubular member 40 is provided. An electric contact terminal is formed by accommodating and holding the signal line contact 51 via an insulator 58 inside.

Then, the stripped end of the shielded electric wire 42 is inserted from the direction perpendicular to the axis of the electric contact terminal, and the signal wire 55 of the shielded electric wire 42 is inserted between the crimping pieces 56 of the signal wire crimping portion 57 of the signal wire contact 51. , The shield 43 is inserted between the crimping pieces 44 of the shield crimping portion 45 of the shield outer tubular member 40, and the outer coating 46 is further inserted between the crimping pieces 47 of the covering crimping portion 48 to form a crimping jig for a signal line contact. Insert the anvil 60 and the crimper 61 into the jig insertion openings 50, 49, crimp the signal wire 55 with the crimping piece 56, and use the anvil 62 and the crimper 63 as the crimping jig for the shield outer cylinder member, The shield 43 is crimped by the crimping piece 44, and the outer coating 46 is crimped by the crimping piece 47.

<Problems to be solved by the device> However, in this electric connector, the connection between the signal line contact 51 and the signal line 55 of the shield line 42 is made into a crimp type, so that this jig for crimping is provided with the anvil 60 and the crimper. The size was 61, which was relatively large. For this reason, the jig insertion port 49 into which the crimper 61 is inserted cannot be made small, and the width dimension S of the shield outer tubular member 40 becomes the width S of the crimper 61, and the width dimension of the shield outer tubular member 40. There is a problem that S cannot be narrowed and the electric contact terminal, and hence the electric connector, cannot be made small.

The present invention has been made in view of the above problems, and its purpose is to make it possible to reduce the width dimension of the shield outer cylinder member and to reduce the electrical contact terminal, and thus the entire connector. An object is to provide an electrical connector that can be downsized.

<< Means for Solving the Problem >> In order to achieve the above object, the present invention provides a shield outer cylinder member, a contact holding portion having a closed cross section and holding a signal line contact through an insulator, A shield crimping part having a crimping piece for crimping the shield of the shielded electric wire,
A shield crimping portion having a crimping piece for crimping the outer coating of the shielded electric wire is provided, and a jig insertion port opened on one side is provided between the contact holding portion and the shield crimping portion, and the shield crimping portion is covered. The crimping portion and the jig insertion opening are located on the open end side, the contact holding portion is provided with the signal line contact via an insulator, and the signal line connecting portion of the signal line contact is It is characterized in that it is located on the open end side of the jig insertion opening with respect to the center of the insulator in the jig insertion opening.

<< Operation >> With this configuration, the jig for the signal line contact is inserted from the jig insertion opening to bring the signal line into contact with the signal line contact portion of the signal line contact, and further the jig for the shield outer cylinder member. The shielded wire can be connected to the electric contact terminal by crimping the shield with the crimping piece of the shield crimping portion and crimping the outer coating with the crimping piece of the covering crimping portion.

In this case, one side of the jig insertion port is open, and the signal line connecting portion of the signal line contact is located on the open end side of the jig insertion port with respect to the center of the insulator. In addition, the crimping crimper of the related art can be used to crimp the signal line to the signal line connecting portion. However, since the crimping point is the center of the crimper, the width A of the contact holding portion is set to the crimper. It can be less than 2/3 of the width B. In this way, the width of the shield outer cylinder member can be reduced, and the electric contact terminal, and thus the connector, can be downsized.

<< Embodiment >> An embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a perspective view of an electric connector according to the present invention before connection.

The electrical connector A includes a female connector B and a male connector C, and the female connector B includes a housing D and an electrical contact terminal 1.

The electric contact terminal 1 includes a shield outer cylinder member 3 and an insulator 4.
And signal line contact 5.

The shield outer cylinder member 3 is roughly divided into three regions,
It is composed of a cylindrical contact holding portion 6, a shield (external conductor) crimping portion 7, and a covering crimping portion 8. The shield crimping portion 7 is provided with crimping pieces 12, 12 standing up in a U shape. Further, the covering crimping portion 8 is provided with crimping pieces 13 and 13 which are erected in a U shape, and these crimping pieces 13 and 13 are formed to be larger than the crimping pieces 12 and 12. Between the contact holding portion 6 and the shield crimping portion 7, a jig insertion opening 10 having one side opened is formed.

The signal line contact 5 is composed of a contact body 14 and a signal line connecting portion 15, as shown in FIG. The contact body 14 is in the shape of a pin, and the signal line connecting portion 15 is provided with crimping pieces 11, 11 which are erected in a U shape.

Then, the signal line contact 5 is housed and held in the contact holding portion 6 of the shield outer tubular member 3 via the insulator 4 to form the electric contact terminal 1. In this case, the signal line contact 5 is located on the open end side of the jig insertion opening 10 with respect to the center of the insulator 4, and the shield crimping portion 7 and the shield crimping portion 7 are provided in front of the signal line connecting portion 15 of the signal line contact 5. The cover crimping portion 8 is located, and the signal line connecting portion 15 of the signal line contact 5 is located inside the jig insertion port 10.

In order to connect the shielded electric wire 2 to the electric contact terminal 1, first, the tip portion of the shielded electric wire 2 is processed as shown in FIG. 2, and the signal wire (center conductor) 20, the intermediate insulator 21, the shield (external The conductor 22 is exposed from the outer coating 23.

The tip portion of this shielded electric wire 2 is inserted into the electric contact terminal 1, the signal wire 20 of the shielded electric wire 2 is placed on the signal wire connecting portion 15 of the signal wire contact 5, and the crimping piece of the shield crimping portion 7 of the shield outer cylinder member 3 is inserted. A shield 22 is inserted between 12 and 12, and an outer coating 23 is inserted between the crimping pieces 13 and 13 of the coating crimping section 3, respectively, and a crimper 24 which is a crimping jig for a signal line contact is inserted as shown in FIG. The signal line 20 is crimped to the signal line connection portion 15 of the signal line contact 5 by using the anvil 25 and
Crimper 26a, 2 which is a crimping jig for shield outer cylinder member
6b and anvils 27a and 27b are used to crimp the shield 22.
The shielded wire 2 is connected to the electrical contact terminal 1 by crimping the outer coating 23 with the crimping pieces 13, 13 at 12, 12.

When crimping the signal line 20 to the signal line connection portion 15, one side of the jig insertion port 10 is released, and the signal line contact 5 is located at the center of the insulator 4 in the jig insertion port. Since it is located on the open end side of 10, the crimping of the signal line 20 to the signal line connecting portion 15 can be performed using the conventional crimping crimper, but this crimping point is the center of the crimper. Therefore, the width H of the contact holding portion 6 can be set to 2/3 or less of the width S of the crimper.

The electric contact 1 is inserted and fixed in the housing D to form a female connector B. By connecting the female connector B to the male connector C, electrical conduction is established.

<< Advantages of the Invention >> As described above, according to the present invention, the shield outer tube member is crimped to the shield of the shielded wire and the contact holding portion that has the closed cross section and holds the signal line contact through the insulator. A shield crimping portion having a crimping piece and a covering crimping portion having a crimping piece for crimping the outer coating of the shielded wire are provided, and a jig insertion port opened on one side is provided between the contact holding portion and the shield crimping portion. In addition, the shield crimping portion and the cover crimping portion are arranged on the open end side of the jig insertion port, and the signal line contact is provided in the contact holding portion via an insulator. By arranging the signal line connecting portion of the contact in the jig insertion opening on the open end side of the jig insertion opening with respect to the center of the insulator, the jig for signal line contact is formed as described above. Insert from the jig insertion port to connect the signal line to the signal line connection part of the signal line contact, and further crimp the shield with the crimping piece of the shield crimping part using the jig for the shield outer cylinder member to cover it. The shield wire can be connected to the electrical contact terminal by crimping the outer coating with the crimping piece of the crimping portion.

In this case, one side of the jig insertion port is open, and the signal line connecting portion of the signal line contact is located on the open end side of the jig insertion port with respect to the center of the insulator. In addition, the crimping crimper of the related art can be used to crimp the signal line to the signal line connecting portion. However, since the crimping point is the center of the crimper, the width A of the contact holding portion is set to the crimper. It can be less than 2/3 of the width B. In this way, the width of the shield outer cylinder member can be reduced, and the electric contact terminal, and thus the connector, can be downsized.

[Brief description of drawings]

FIG. 1 is a perspective view of an electric connector of the present invention before being connected, and FIG.
FIG. 3 is a perspective view of an electric contact terminal in the electric connector, FIG. 3 is a perspective view of a signal line contact, FIG. 4 is a side view of the electric contact terminal, FIG. 5 is a plan view of the same, and FIG. 6 is an electric contact terminal. 7 is a perspective view of a conventional electric connector, FIG. 8 is a perspective view of the electric connector previously proposed by the applicant, and FIG. 9 is an electric contact terminal. FIG. 10 is an explanatory diagram showing a state in which shielded electric wires are connected, and FIG. 10 is an explanatory diagram of a crimper which is a crimping jig. 1 ... Electrical contact terminal, 2 ... Shield wire, 3 ... Shield outer cylinder member, 4 ... Insulator, 5 ... Signal line contact, 6 ... Contact holding part, 7 ... Shield crimping part,
8 …… Coating crimping part, 10 …… Jig insertion slot, 12,13 …… Crimping piece, 14 …… Contact body, 15 …… Signal line connecting part.

Claims (1)

[Scope of utility model registration request] 1. A shield holding member having a closed cross section for holding a signal line contact via an insulator, a shield crimping portion having a crimping piece for crimping a shield of a shielded electric wire, and a shield. A cover crimping portion having a crimping piece for crimping the outer coating of the electric wire is provided, and a jig insertion port opened on one side is provided between the contact holding portion and the shield crimping portion, and the shield crimping portion and the cover crimping portion are provided. And a signal line contact is provided on the contact holding part via an insulator, and the signal line connecting part of the signal line contact is connected to the jig. An electrical connector, characterized in that it is located on the open end side of the jig insertion opening with respect to the center of the insulator in the tool insertion opening.