JPH10270122A - Connector structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve shielding performance, use a fixing tool also for a shielding member so as to reduce the number of part items and facilitate manufacturing assembling work by shielding a shield electric wire and a terminal by surrounding these with a conductive shield cylinder and the fixing tool. SOLUTION: A first connector B is fixed to an attached member D by a fastening member E, and a second connector main body 2 is fitted to a first connector main body 1. Then, when a second fixing tool 6 is screwed into a first fixing tool 5, a shield wire 8c is made conductive to a shield cylinder 9 and the fixing tools 5 and 6, a shield wire 8 and first and second terminals 3 and 4 are surrounded to be shielded and thus shielding performance is provided. Also, since the second fixing tool 6 is contacted with an annular flange part 9a projectingly provided in the outer peripheral surface of the shield cylinder 9 and the first fixing tool 5 is screwed in, shielding performance and waterproof are secured simultaneously with the screwing-in.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector structure for shielding and relaying a shielded electric wire in a signal transmission line of a sensor, for example.

[0002]

2. Description of the Related Art Conventionally, as this type of connector structure, for example, one disclosed in Japanese Utility Model Laid-Open No. 5-57771 is known. That is, the above connector structure has the first shield inside the shielded outer cylinder connected to the shielded wire of the shielded wire.
And the second terminal was fitted via an insulator, the core wire of the shielded electric wire was connected to each terminal, and the core wire was surrounded and shielded by the shield outer tube, and the shield outer tube was attached. The housing is configured to be waterproof by interposing a seal member at a fitting portion and a rear end portion of the housing.

[0003]

However, since the shield outer cylinder is made of a vertically formed press-molded product, there is a gap at the mating edge thereof, resulting in poor shieldability and waterproofness. In addition, there is a problem that the number of parts is large and the work efficiency of manufacturing and assembling is reduced.

Accordingly, one object of the present invention is to provide a connector structure having good shielding performance.
Another object of the present invention is to provide a connector structure having good waterproof properties. Still another object of the present invention is to provide a connector structure which is easy to manufacture and assemble.
Still other objects of the present invention are as described in detail below.

[0005]

According to a first aspect of the present invention, there is provided a connector structure comprising: an electrically insulating connector main body; a terminal fixed to the connector main body and connected to a core of a shielded electric wire; A shield cylinder connected to the wire and surrounding the shielded electric wire and the terminal and mounted on the connector main body; and a fixture which is in contact with the shield cylinder and externally fitted to the connector main body. And

In the connector structure according to the second aspect of the present invention, the first and second connector bodies having electrical insulation, the core wires of the shielded wires fixed to the respective connector bodies, and detachably connected to each other. A shield tube connected to the first and second terminals, the shield wire of the shield wire, and attached to each of the connector bodies surrounding the shield wire and the terminal; and integrally or separately with the shield tube And a first and a second fixing tool which are formed and are externally fitted to the connector main body and detachably connected thereto.

In the connector structure according to the third aspect of the present invention, the first and second fixing members abut one of the fixing members on an end face of an annular flange portion protruding from a shield cylindrical body separate from the first fixing member. Then, it is configured to be detachably screwed into the other fixture.

The connector structure according to a fourth aspect of the present invention is characterized in that the shield cylinder is molded on the connector body to braze the shield wire, and the brazed portion is covered with an electrically insulating coating. And

According to a fifth aspect of the present invention, there is provided the connector structure, wherein a projection for coupling positioning display of the connector main body having a protruding height for recognizing a touch is formed on an outer surface of the electrically insulating coating.

[0010]

According to the first and second aspects of the present invention, the shield wire and the terminal are surrounded and shielded by the shield cylinder and the fixture which are not vertically divided, so that the shielding performance is good and the fixture is provided. Is also used as a shield member, so that the number of parts is reduced and manufacturing and assembling work is easy and inexpensive.

According to the third aspect of the present invention, one of the fixing members is brought into contact with the annular flange protruding from the outer peripheral surface of the shield cylinder and screwed into the other fixing member. Shielding properties and waterproofness can be easily secured.

According to the fourth aspect of the present invention, the shield wire is brazed to the shield cylinder molded on the connector body, and the brazed portion is covered with the electrically insulating film.
The shielding property and the waterproof property can be further improved.

According to the fifth aspect of the present invention, since the connection positioning display projection of the connector main body is formed at a protruding height that can be recognized by touch, the connection operation of the connector main body can be easily and quickly performed without depending on visual observation. Can be achieved.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded side view showing an example of a connector structure according to the present invention, in which main parts are cut away, and FIG. 2 is an assembled side view. In the figure, A is a connector, and this connector A
Is composed of a first (male) connector B and a second (female) connector C which are detachably connected to each other. Terminal holes 1a and 2a are formed in the first and second connector bodies 1 and 2 constituting the connectors B and C, and the first and second terminals 3 and 4 are press-fitted and fixed. Cylindrical first and second fixing tools 5 and 6 having conductivity are fitted to the connector bodies 1 and 2 respectively.

The first fixing tool 5 has a first screw (male screw) portion 5a formed on the outer peripheral surface, and the second fixing tool 6 has a second screw (female screw) portion 6a formed on the inner peripheral surface. Second fixture 6
Is an annular flange portion 9a of a shield tube 9 having conductivity which is embedded concentrically in the connector body 2 by insert molding.
Is locked.

The first terminal 3 is composed of, for example, a plurality of pin terminals, and the second terminal 4 is composed of a plurality of socket terminals having a fitting portion 4a for fitting the tip 3a of the pin terminal 3, and Of the shielded wire 8 of the electric cable 7 is connected to a cylindrical connecting portion 4b formed at the base end.
is inserted and, for example, the connecting portion 4b is deformed by a jig (not shown), whereby the connecting portion 4b is crimped to the core wire 8a to be electrically connected. The electric cable 7 is formed by covering an electric wire 8 in which a plurality of core wires 8a are covered with a synthetic resin coating 8b with a synthetic resin outer coating 8d via a shielded wire 8c, and is inserted concentrically into the connector body 2. The shield wire 8c is brazed to the shield cylinder 9 embedded by molding by soldering or the like, and is electrically connected at the brazing portion 10 to shield the electric wire 8. Further, the connector main body 2 and the electric cable 7 are insert-molded in a mold (not shown) and are covered with a jacket 11 made of synthetic resin.

In the above configuration, as shown in FIG. 3, the first connector B is fixed to the member D to be mounted by the tightening member E, and the second connector main body 2 is fitted to the first connector main body 1. Then, when the second fixing member 6 is screwed into the first fixing member 5, the shield wire 8c is conducted to the shield cylinder 9 and the fixing member 5.6, and the shielded electric wire 8 and the terminals 3, 4
Can be surrounded and shielded, and good shielding performance can be exhibited. In addition, each of the fixtures 5,
6 also serves as a shield member, so that the number of parts is reduced and the manufacturing and assembling work is easy, and the second fixing member 6 is formed by an annular flange 9a protruding from the outer peripheral surface of the shield cylinder 9.
, And screwed into the first fixture 5, so that the shielding property and the waterproofness can be easily secured at the same time as the screwing.

Further, the shield wire 8c is brazed to the shield cylinder 9 molded on the connector main body 2, and the brazed portion 10 is covered with the jacket 11 made of synthetic resin.
The shielding property and the waterproof property can be further improved. At this time, as shown in FIG. 4, by forming the projection 12 for positioning and indicating the connection of the second connector C to the first connector B at a protruding height recognizable by the touch of a finger.
The work of connecting the two connector bodies B and C is facilitated. The connector C may be bent as shown in FIG. 5, and it is needless to say that the coupling positioning display projection 12 may be formed on the bent portion 13.

FIG. 6 is a side view of another example of a connector structure according to the present invention, in which main parts are cut away. In the figure,
The difference from the connector A shown in FIG. 1 is that a shield cylinder 19 integrated with the first fixture 5 is coaxially embedded in the connector body 1 of the first connector B by insert molding.
The shielded wire 18c of the shielded electric wire 18 in the electric cable 17 is brazed at the brazing portion 20 by soldering or the like, and the core wire 18a covered with the synthetic resin coatings 18d and 21 is fixed to the shield cylinder 19 and the fixing tool 5.6.
Thus, the shielded wires 8 and 18 in the signal transmission line of the sensor can be shielded and relayed, for example, to provide a good shield property and waterproof property.

In FIG. 6, since the other configuration is almost the same as that of FIG. 1, the same or corresponding parts as those of FIG. 1 are denoted by the same reference numerals, and detailed description thereof will be omitted. Also,
In the above embodiment, if the sealing member 22 such as an O-ring is fitted into the fitting portion between the two connector bodies 1 and 2, the waterproofness can be further improved. Further, it goes without saying that the connection positioning display projections 12 are formed on both connectors B and C.

[0021]

As described above, according to the first and second aspects of the present invention, since the shielded wire and the terminal are surrounded and shielded by the shield cylinder and the fixture, the shield performance is good and the number of parts is reduced. It is easy to manufacture and assemble.

According to the third aspect of the present invention, since the fixture has a screw-in structure, it is possible to easily secure the shielding property and the waterproof property simultaneously with the screw-in.

According to the fourth aspect of the present invention, since the shield cylinder molded into the connector body is brazed with the shield wire and covered with the electrically insulating coating, the shield property and the waterproof property are further improved. Can be.

According to the fifth aspect of the present invention, since the connection positioning display projection of the connector main body is formed at a protruding height that can be perceived by touch, the connection operation of the connector main body is easy and independent of visual observation. Can be achieved quickly.

[Brief description in the drawings]

FIG. 1 is an exploded side view of an example of a connector according to the present invention, in which main parts are cut away.

FIG. 2 is an assembled side view of the connector.

FIG. 3 is an assembled side view of the connector.

FIG. 4 is an external side view of a second connector constituting the connector.

FIG. 5 is an external side view showing another example of the second connector constituting the connector.

FIG. 6 is a side view of another example of the connector according to the present invention, in which main parts are cut away.

[Explanation of symbols]

 Reference Signs List A Connector B First Connector C Second Connector 1 First Connector Body 1a First Terminal Hole 2 Second Connector Body 2a Second Terminal Hole 3 First Terminal (Pin Terminal) 4 Second Terminal (Socket terminal) 5 First fixing tool 5a First screw portion 6 Second fixing tool 6a Second screw portion 8 Shielded wire 8a Core wire 8c Shielded wire 9 Shield cylinder 9a Collar portion 11 Jacket portion 18 Shielded wire 18a core wire 18c shield wire 21 jacket

Claims (5)

[Claims] An electric insulating connector main body, a terminal fixed to the connector main body and connected to a core wire of a shielded electric wire, and a shielded wire of the shielded electric wire connected to and surrounding the shielded electric wire and the terminal. A shield cylinder attached to the connector body, and a fixing tool that comes into contact with the shield cylinder and is externally fitted to the connector body, wherein the shielded electric wire and the terminal are formed by the conductive shield cylinder and the fixing tool. A connector structure characterized in that the connector structure is configured to shield the connector. 2. An electric insulating first and second connector main body, and first and second terminals fixed to each of the connector main bodies, connected to a core wire of a shielded electric wire, and detachably connected to each other. A shielded cylindrical body connected to the shielded wire of the shielded electric wire and surrounding the shielded electric wire and the terminal and mounted on each of the connector main bodies; and a shield cylindrical body formed integrally with or separately from the shielded cylindrical body and externally connected to the connector main body. First and second fixing tools fitted and detachably connected to each other, wherein the shielded electric wires and terminals are shielded by the conductive shield cylinder and the fixing tool. Connector structure. 3. The first and second fixing tools are configured such that one fixing tool is brought into contact with an end face of an annular flange portion protruding from a shield cylinder separate from the other fixing tool, and the other fixing tool is fixed to the other. The connector structure according to claim 1, wherein the connector structure is configured to be removably screwed into a tool. 4. The method according to claim 1, wherein the shield cylinder is molded on the connector body to braze the shield wire, and the brazed portion is covered with an electrically insulating coating. The connector structure according to any one of the above. 5. The connector structure according to claim 4, wherein a projection for coupling positioning display of the connector main body having a protruding height capable of recognizing a touch is formed on an outer surface of the electrically insulating coating.