JPH0722055Y2 - 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. 8, 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. 9, 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 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 shield outer cylinder member
The width dimension S of 40 becomes the width S of the crimper 61, and the width dimension S of the shield outer tubular member 40 cannot be narrowed, so that the electrical contact terminal, and thus the electrical connector, cannot be downsized. was there.

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 of the present invention is to provide an electrical connector which can be miniaturized and can be expected to improve the shielding effect.

<Means for Solving the Problems> In order to achieve the above object, the present invention comprises a shield outer cylinder member having a contact holding portion having a jig insertion opening for inserting a crimping jig and a shield crimping portion. , The signal line contact is held in the contact holding portion of the shield outer cylinder member via the insulator, the signal line of the shielded electric wire is inserted into the signal line contact, and the crimping jig is inserted into the jig insertion opening. An electrical connector for crimping a signal wire of the shielded electric wire to a signal wire contact, the shield outer tubular member including a cylindrical contact holding portion and a shield crimping portion for crimping a shield. It is characterized in that a jig insertion opening having a size into which a linear crimping jig is inserted is formed in four directions on the peripheral surface portion at predetermined intervals in the circumferential direction.

<< Operation >> With such a configuration, it is not necessary to use the crimper used for crimping the signal line of the conventional electric connector, and a crimping jig having a straight tip is inserted from the jig insertion opening in the peripheral portion of the contact holding member, The crimping jigs can be crimped by pressing the signal line connecting portion from four directions. Therefore, the width dimension of the shield outer cylinder member can be set without considering the width dimension of the crimper, and the width dimension of the shield outer cylinder member can be narrowed. Can make the connector small. In addition, the jig insertion port formed in the shield outer cylinder member may have a slit shape because a linear crimping jig having a flat tip is inserted, and the shield effect is improved.

<< Embodiment >> An embodiment of the present invention will be described below with reference to FIGS. 1 to 7.

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 is generally composed of a shield outer cylinder member 3, an insulator 4, a signal line contact 5 and a crimp sleeve 9.

The shield outer cylinder member 3 includes a contact holding portion 6 and a shield (external conductor) crimping portion 7. The contact holding portion 6 is a cylindrical body, and a plurality of jig insertion openings 8 are provided on the peripheral surface of the contact holding portion 6 at predetermined intervals in the circumferential direction.
Is formed. The shield crimping portion 7 has a cylindrical shape with a smaller diameter than the contact holding portion 6, and a plurality of slits 7a along the axial direction are formed on the peripheral surface portion thereof.

The signal line contact 5 is provided with a contact body 14 as shown in FIG. 3, and the contact body 14 is made of a tubular body having a closed tip and a signal line connecting portion 15 at the rear part.

The insulator 4 is housed and fixed in the contact holding portion 6 of the shield outer tubular member 3, and the signal line contact 5 is attached to the insulator 4.

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, the shielded electric wire 2 is passed through the crimping sleeve 9, the shield crimping portion 7 of the shield outer tubular member 3 is inserted between the intermediate insulator 21 and the shield 22 of the shielded electric wire 2, and the signal line 22 is connected to the signal line contact 5. It is inserted into the signal line connecting portion 15. Then, the crimp sleeve 9 is moved to cover the shield 22.

From this state, the pressure bonding step is performed. That is, for crimping the signal line connecting portion 15 of the signal line contact 5, a plurality of linear crimping jigs 24 are used, and these crimping jigs 24 are formed on the contact holding portion 6 of the shield outer tubular member 3. They are simultaneously inserted into the tool insertion port 8 and the crimping jig 24 presses the signal line connecting portion 15 from four directions to perform crimping. In addition, the shield 22 of the shielded wire 2
The crimping of the portion is performed by pressurization using the upper and lower crimping jigs 26 and 27.

Even if the crimping of the signal wire 20 and the crimping of the shield 22 are separate,
It can be the same time.

Then, the electrical contact 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.

Further, as described above, since the crimping jig 24 is inserted from the jig insertion opening 8 in the peripheral portion of the contact holding member 6 to crimp the signal line 20, without considering the width dimension S of the crimper. The width dimension H of the shield outer cylinder member 6 can be set, and the width dimension H of the shield outer cylinder member 6 can be narrowed.

<< Advantages of the Invention >> As described above, the present invention includes the shield outer cylinder member having the contact holding portion having the jig insertion port for inserting the crimping jig and the shield crimping member. The signal line contact is held in the contact holding portion via an insulator, the signal line of the shielded electric wire is inserted into the signal line contact, and the crimping jig is inserted into the jig insertion opening to connect the signal line of the shielded electric wire. An electrical connector for crimping to a signal line contact, wherein the shield outer cylinder member has a cylindrical contact holding portion and a shield crimping portion for crimping a shield, and is circumferentially provided on a peripheral surface portion of the contact holding portion. A crimping tool used for crimping the signal wire of the conventional electrical connector was constructed by forming jig insertion openings of a size with a linear tip crimping jig on all four sides at predetermined intervals. It is not necessary to use, and insert a linear crimping jig from the jig insertion hole on the peripheral part of the contact holding member, and crimp the signal line connecting part from all four sides with these crimping jigs. You can Therefore, the width dimension of the shield outer cylinder member can be set without considering the width dimension of the crimper, and the width dimension of the shield outer cylinder member can be narrowed. Can make the connector small. In addition, the jig insertion port formed in the shield outer cylinder member may have a slit shape because a linear crimping jig having a flat tip is inserted, 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 an electric contact terminal of the electric connector in an exploded state, FIG. 3 is a perspective view of a signal line contact, and FIG. 4 is a sectional view showing a state in which an insulator and a signal line contact are incorporated in a shield outer cylinder member. Fig. 5 is a cross-sectional view showing a state before pressure welding, in which an insulator and a signal line contact are incorporated into a shield outer cylinder member, and a shield electric wire is connected. Fig. 6 is an explanatory view of the same crimping, and Fig. 7 is after connection. 8 is a perspective view of the electric contact terminal of FIG.
FIG. 11 is a perspective view of a conventional electric connector, FIG. 9 is a perspective view of the electric connector previously proposed by the present applicant, FIG. 10 is an explanatory view showing a state in which a shielded electric wire is connected to an electric contact, and FIG. FIG. 3 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, 8 ... Jig insertion port, 14 …
… Contact body, 15 …… Signal line connection part.

Claims (1)

[Scope of utility model registration request] 1. A shield outer cylinder member having a contact holding part having a jig insertion port for inserting a crimping jig and a shield crimping part, and a signal is provided to the contact holding part of the shield outer cylinder member via an insulator. An electrical connector that holds a wire contact, inserts the signal wire of the shielded wire into the signal wire contact, inserts a crimping jig into the jig insertion opening, and crimps the signal wire of the shielded wire to the signal wire contact. The shield outer tubular member has a cylindrical contact holding portion and a shield crimping portion for crimping the shield, and the tip ends are provided in four directions at predetermined intervals in the circumferential surface portion of the contact holding portion. An electrical connector characterized in that a jig insertion opening having a size for inserting a linear crimping jig is formed.