JPH0719093Y2 - 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. 6, 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 made into a single wire and connected to the contact terminal e of the connector body d, and
It is necessary to separately connect the shield b and the signal line c to the contact terminals e and f so that the signal line c is connected to the contact terminal f of the connector body d by pressure connection or the like. It was difficult to make continuous and automated. Also,
Since the shield of the signal line c was released, the shield effect was 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. 7, 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 the outer coating 46 of the shielded electric wire 42. The contact holding portion 41 is provided with the covering crimping portion 48 having the crimping piece 47 for crimping
In the contact holding portion 41 of the shield outer cylinder member 40, the jig insertion ports 49 and 50 are provided on the signal wire contact 51, and 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 on the signal wire contact 51. Further, the signal line contact 51 is housed and held via the insulator 58 to form an electric contact terminal.

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 crimper 61 with the Alvin 60 into the jig insertion ports 50, 49, crimp the signal wire 55 with the crimping piece 56, and use the Arbil 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 invention> However, in this electrical connector, the signal line 55
It is necessary to provide the contact holding portion 41 with jig insertion ports 49, 50 for inserting a crimping jig used for crimping, and since these jig insertion ports 49, 50 are released even after crimping,
There is a problem that the shield of the signal line 55 crimped to the signal line crimping portion 57 of the signal line contact 51 is incomplete and the shield effect is insufficient.

The present invention has been made in view of the above problems, and its purpose is to provide a complete shield for the signal line portion crimped to the signal line crimping portion of the signal line contact. An object of the present invention is to provide an electric connector having an improved shield effect.

<Means for Solving the Problems> In order to achieve the above object, the present invention provides a shield crimping for crimping a shield of a shielded electric wire with a contact holding portion having jig insertion openings formed at positions facing each other on a peripheral surface portion. Section and a coating crimping section for crimping an outer coating of the shielded electric wire, and a cylindrical shield inner tubular member, and the shield being rotatably fitted to the shield inner tubular member and facing each other on the peripheral surface portion. A cylindrical shield outer cylinder member having a jig insertion opening that matches the jig insertion opening of the inner cylinder member, and the jig insertion opening attached to the contact holding portion of the shield inner cylinder member via an insulator. And a signal line contact having a signal line crimping portion for crimping at least the signal line of the shielded electric wire.

<< Operation >> With this configuration, the signal wire of the shielded wire is inserted into the signal wire crimping part of the signal wire contact while the jig insertion holes of the outer cylinder member are aligned with each other, and the shielded wire of the shielded wire is crimped. Part, the outer coating is inserted into the coated crimping part, the crimping jig is inserted into the shield and the jig insertion port of the outer cylinder member, the signal wire is crimped at the signal wire crimping portion, and the shield is shielded with the crimping jig. Crimping the shield with the shield crimping part and the outer coating with the coating crimping part, and rotating the shield outer cylinder member relative to the shield inner cylinder member to shift the jig insertion opening from the jig insertion opening and close the jig insertion opening. To do.

Therefore, the portion of the signal line that is crimped to the signal line crimping portion of the signal line contact is shielded by the inner and outer shield members to be in a completely shielded state, and the shield effect is improved.

<< 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 electrical contact terminal 1 is generally composed of a shield inner cylinder member 3, a shield outer cylinder member 4, an insulator 5, and a signal line contact 6.

The shield inner cylinder member 3 is a cylindrical body, and includes a contact holding portion 7, a shield crimp portion 11, and a cover crimp portion 12.
Further, two jig insertion openings 8 are formed in the peripheral surface portion of the contact holding portion 7 at opposing positions, and a convex rail 9 is formed on the peripheral surface portion in the outward direction along the circumferential direction. is there. The shield crimping part 11 is a crimping piece 15, 15 which is erected in a U shape.
And the coated crimping part 12 is a crimping piece that stands up in a U shape.
It has 16 and 16.

The shield outer cylinder member 4 is rotatably fitted to the shield inner cylinder member 3 and includes a cylindrical fitting portion 10. Positions opposite to the peripheral surface portion of the fitting portion 10 are provided. A jig insertion port 13 is provided on the outer peripheral surface of the peripheral surface, and an outwardly convex rail 14 is formed on the peripheral surface along the peripheral direction.

The signal line contact 6 is provided with a contact body 17 as shown in FIG. 3, and the contact body 17 is made of a tube body having a closed front end, and the rear portion thereof is a signal line crimping portion 18 and an intermediate insulator crimping portion 19. This signal wire crimping part 18
Is provided with crimping pieces 27, 27 standing up in a U shape, and the intermediate insulator crimping portion 19 is provided with crimping pieces 28, 28 standing up in a U shape.

The insulator 5 is housed and fixed in the contact holding portion 7 of the shield inner tubular member 3, and the signal line contact 6 is attached to the insulator 5.

Further, the shield outer cylinder member 4 is rotatably fitted in the shield inner cylinder member 3, and the rail 14 of the shield outer cylinder member 4 is inserted in the rail 9 of the shield inner cylinder member 3 so that electrical contact can be made between them. It constitutes the terminal 1. Therefore, when the shield outer cylinder member 4 is rotated, the two jig insertion ports 13 of the shield outer cylinder member 4 are separated from each other by the number of the shield inner cylinder member 3.
Matches with one jig insertion port 8.

Next, a procedure for connecting the shielded electric wire 2 to the electric contact terminal 1 will be described.

First, the tip portion of the shielded electric wire 2 is processed as shown in FIG. 2 to expose the signal line (center conductor) 20, the intermediate insulator 21, and the shield (outer conductor) 22 from the outer coating 23.

Then, in the electric connection terminal 1, the jig insertion ports 8 and 13 of the outer tubular members 3 and 4 are aligned in the shield, and the shielded wire 2
Signal wire 20 to the signal wire crimping portion 18 of the signal wire contact 6,
While inserting the intermediate insulator 21 into the intermediate insulator crimping portion 19,
The shield 22 of the shielded electric wire 2 is inserted into the shield crimping portion 11, and the outer coating 23 is inserted into the coating crimping portion 12, respectively.

In this state, the crimping jigs 24a, 25a, 24b, 25b are inserted into the jig insertion openings 8, 13 of the outer tubular members 3, 4 inside the shield, and the signal wire crimping portion 18 is pressed by the crimping jigs 24a, 25a. Then, crimping is performed by the crimping piece 27, the intermediate insulator crimping portion 19 is pressed by the crimping jigs 24b, 25b, and crimping is performed by the crimping piece 28, and the crimping jigs 29a, 30a, 29
Using b and 30b, the shield 22 is crimped with the crimping piece 15, and the outer coating 23 is crimped with the crimping piece 16.

Next, with respect to the shield inner cylinder member 3, the shield outer cylinder member 4
Is rotated to shift the jig insertion opening 13 from the jig insertion opening 8 and close the jig insertion opening 8.

Then, the electrical connection terminal 1 to which the shielded electric wire 2 is connected is inserted and fixed in the housing D to form the female connector B,
Electrical connection is established by connecting the female connector B to the male connector C.

In addition, as described above, the portion of the signal line 20 crimped to the signal line crimping portion 18 of the signal line contact 6 is shielded by the outer tubular members 3 and 4 in the shield to be in a completely shielded state, and the shield effect is improved. To do.

<Effects of the Invention> As described above, the present invention provides a contact holding portion having jig insertion openings formed at positions facing each other on a peripheral surface portion, a shield crimping portion for crimping a shield of a shielded electric wire, and the outside of the shielded electric wire. A cylindrical shield inner cylinder member configured by a cover crimping portion for crimping a cover, and a jig for inserting the shield inner cylinder member into a position rotatably fitted to the shield inner cylinder member and facing each other on a peripheral surface portion. A cylindrical shield outer cylinder member having a jig insertion opening that matches the opening and a contact holding portion of the shield inner cylinder member that is attached via an insulator and is located between the jig insertion openings at least Since it has a signal line contact that has a signal line crimping portion for crimping the signal line of the shielded wire, the signal line of the shielded wire is signaled with the jig insertion holes of the outer cylinder member aligned with each other. Insert the shield of the shielded wire into the shield crimp part and the outer coating into the cover crimp part, as well as insert into the signal contact crimping part of the wire contact, and insert the crimping jig inside the shield and into the jig insertion port of the outer cylinder member. Then, crimp the signal wire in the signal wire crimping section, and use the crimping jig to shield the shield in the shield crimping section.
The outer coating is crimped by the coating crimping portion, and the shield outer tubular member is rotated with respect to the inner shield tubular member to displace the jig insertion port from the jig insertion port and close the jig insertion port.

Therefore, the portion of the signal line that is crimped to the signal line crimping portion of the signal line contact is shielded by the inner and outer shield members to be in a completely shielded state, and the shield effect is improved.

[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 the electric contact terminal in the electric connector in a disassembled state, Fig. 3 is a perspective view of a signal line contact, and Fig. 4 is a shield outer cylinder member in which an insulator and a signal line contact are incorporated to connect a shielded electric wire. Sectional view showing the state during crimping,
5 is a perspective view of the electric contact terminal after connection, FIG. 6 is a perspective view of a conventional electric connector, FIG. 7 is a perspective view of the electric connector previously proposed by the applicant, and FIG. 8 is an electric contact. FIG. 9 is an explanatory view showing a state in which a shielded electric wire is connected to the child, and FIG. 9 is an explanatory view of a crimper which is a crimping jig. DESCRIPTION OF SYMBOLS 1 ... Electrical contact terminal, 2 ... Shield electric wire, 3 ... Shield inner cylinder member, 4 ... Shield outer cylinder member, 5 ... Insulator, 6 ... Signal line contact, 8, 13 ... Jig insertion port.

Claims (1)

[Scope of utility model registration request] 1. A contact holding portion having jig insertion openings formed at opposite positions of a peripheral surface portion, a shield crimping portion for crimping a shield of a shielded electric wire, and a cover crimping portion for crimping an outer coating of the shielded electric wire. And a jig insertion port that is rotatably fitted to the shield inner tube member and that is rotatably fitted to the shield inner tube member and that is aligned with the jig insertion port of the shield inner tube member at positions facing each other. And a signal wire for crimping at least the signal wire of the shield electric wire, which is attached to the contact holding portion of the shield inner cylinder member via an insulator and is located between the jig insertion ports. An electrical connector, comprising: a signal line contact having a crimp portion.