JP2008258102A - Shielded connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a shielded connector capable of reducing manufacturing cost. <P>SOLUTION: This connector C connected to a terminal part of a shielded conductive path 10 formed by collectively surrounding a plurality of wires 11 by a shield member 12 formed of a braided wire includes a housing 14 capable of housing terminals 13 connected to terminal parts of the wires 11, and a metallic shell 20 capable of housing the housing 14. A tubular part 37 forming a tubular shape allowing the wires 11 extracted from the housing 14 to be inserted into the inner periphery side thereof is formed integrally with the shell 20, a terminal part of the shield member 12 is put on the outer periphery side of the tubular part 37, and crimp pieces 28 crimped to the outer periphery side of the tubular part 37 by catching the terminal part of the shield member 12 are formed integrally with the shell 20. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a shield connector connected to a terminal portion of a shield conductive path.

A shield connector described in Patent Document 1 is known as a connector connected to a terminal portion of a shield conductive path formed by collectively enclosing a plurality of electric wires with a shield member made of a braided wire. The shield connector includes a housing capable of accommodating a terminal connected to a terminal portion of an electric wire and a shield shell capable of accommodating the housing, and a terminal portion of a shield member is connected to the shield shell.
The terminal portion of the shield member is placed on the outer peripheral side of the inner ring provided on the shield shell, and is further caulked to the caulking ring from the outer side, thereby being fixed to the shield shell in a conductive manner.
JP 2006-147353 A

However, in the structure as described above, in order to fix the shield member to the shield shell, it is necessary to perform caulking separately from the shield shell, which increases the number of parts and increases the manufacturing cost. It was.
The present invention has been made in view of the above circumstances, and an object thereof is to provide a shielded connector capable of reducing the manufacturing cost.

The present invention is a shield connector connected to a terminal portion of a shield conductive path formed by collectively enclosing a plurality of electric wires with a shield member made of a braided wire, and is a terminal connected to the terminal portion of the electric wire And a shell made of metal that can accommodate the housing, and the shell includes a tubular portion that forms a tubular shape through which the electric wire drawn out from the housing can be inserted into the inner peripheral side. The terminal portion of the shield member is covered on the outer peripheral side of the cylindrical portion, and the shell is sandwiched between the terminal portion of the shield member and on the outer peripheral side of the cylindrical portion. It is characterized in that the caulking pieces to be caulked are integrally formed.
According to such a configuration, the number of parts can be reduced as compared with the case where the terminal portion of the shield member is caulked with another part, and thus the manufacturing cost can be reduced.

A pair of the caulking pieces may be provided.
In addition, the shell has a shape that covers up to both ends of the cylindrical portion in the axial direction opposite to the housing side, and the shield conductive path is provided at the end opposite to the housing side. An insertion opening through which the insertion hole is inserted is formed, and the edge portion of the insertion opening is a folded portion that is folded back to the outer peripheral side.
According to such a configuration, since the edge of the cut surface of the insertion opening does not hit the shield conductive path, damage to the shield conductive path can be prevented.

The shell is composed of a first shell and a second shell that can be assembled to each other, and the cylindrical portion is formed on one of the first shell and the second shell, and The caulking piece may be formed on the other shell.
Accordingly, the first shell and the second shell are fixed at this position by caulking the caulking piece to the cylindrical portion.

The first shell and the second shell are respectively formed with bolt holes for attaching them to the ground member, and the bolt holes are coaxial with the first shell and the second shell assembled. It can be formed so as to be continuous with the.
As a result, the first shell and the second shell are both attached to the ground member by bolting one bolt through the bolt hole, so the first shell and the second shell are bolted separately. Compared to the case of fixing to the ground member, the shell can be easily attached.

  One of the first shell and the second shell may be provided with a fixing piece that is caulked to the other shell in a state where the first shell and the second shell are assembled. .

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide the shield connector which can aim at reduction of manufacturing cost.

Embodiments of the present invention will be described below with reference to FIGS.
The shield connector C in the present embodiment is a connector that is connected to a terminal portion of a shield conductive path 10 that includes three electric wires 11 and a shield member 12 that collectively surrounds the electric wires 11.
In the following, each component will be described with the left side of FIG. 1 as the front, the right side as the rear, the upper side as the upper side, and the lower side as the lower side.

  The electric wire 11 is of a non-shield type in which the outer periphery of the conductor 11A is surrounded by a synthetic resin insulating coating 11B. The shield member 12 is formed in a cylindrical shape by a braided wire in which fine metal wires are knitted in a mesh shape, and most of the shield member 12 is surrounded and protected by a synthetic resin protective tube (not shown). . The three electric wires 11 are collectively shielded by being inserted into the shield member 12 together.

  Terminals 13 are connected to the terminal portions of the three electric wires 11 by crimping. Each terminal 13 is substantially L-shaped, one end of which is a wire connecting portion 13A connected to the terminal portion of the electric wire 11, and the other end is a terminal connection that can be connected to a mating terminal (not shown). Part 13B.

  The shield connector C is provided with a housing 14 that can accommodate the terminals 13. The housing 14 is made of synthetic resin and has a shape in which the connector connecting portion 15 that accommodates the terminal connecting portion 13 </ b> B of the terminal 13 protrudes downward. By connecting the connector connecting portion 15 and a connecting portion of a mating connector (not shown), the terminals between the two connectors are connected to each other, thereby achieving electrical connection. Further, the electric wire 11 connected to the terminal 13 is led out from the housing 14 to the rear.

  The shield connector C is provided with a metal shell 20 that houses the housing 14 and keeps it in a shielded state. The shell 20 includes an upper shell 21 and a lower shell 31 (corresponding to the first shell and the second shell of the present invention) that can be assembled with each other.

  The lower shell 31 has a flat plate shape as a whole, and a fitting port 32 into which the connector connecting portion 15 of the housing 14 can be fitted is opened in a substantially first half portion (see FIG. 3). Further, a lower mounting portion 33 having a shape projecting from both sides is formed in a substantially first half portion of the lower shell 31, and a lower bolt hole 34 penetrating in the vertical direction is formed in each lower mounting portion 33. Is formed.

  On both side edges of the lower shell 31, recesses 35 that are recessed upward (inside the shell 20) are formed. The recessed portion 35 is provided at a position behind the lower mounting portion 33 and has a substantially rectangular shape with a recessed portion corresponding to the thickness of the lower shell 31 (see FIG. 4). Each recess 35 is formed with a notch 36 having a shape notched inward, and the notch dimension is approximately twice the thickness of the upper shell 21.

  At the rear end of the lower shell 31, a cylindrical portion 37 that forms a cylindrical shape through which the electric wire 11 drawn out from the housing 14 can be inserted into the inner peripheral side is integrally formed via a continuous portion 38. Yes. The cylindrical portion 37 has an elliptical cylindrical shape that allows the three electric wires 11 to be inserted and is slightly long in the width direction. The outer peripheral surface of the cylindrical part 37 is covered with the terminal part of the shield member 12.

  The connecting portion 38 connects the rear end edge of the lower shell 31 and the lower end edge of the flange portion 37 </ b> A of the cylindrical portion 37, and is located at a position protruding slightly rearward from the rear end edge of the lower shell 31. The shape is bent upward. By the continuous portion 38, the cylindrical portion 37 is held at an upper position of the lower shell 31 in a posture protruding rearward from the rear end edge of the lower shell 31. The cylindrical portion 37 is arranged so that the axis thereof is substantially parallel to the plate surface of the lower shell 31, and the three electric wires 11 led out from the housing 14 are hardly bent in the vertical direction. Is inserted backward (see FIG. 1).

  The upper shell 21 has a shape opened downward, a lid plate portion 21A that covers the top of the housing 14, and a front plate portion 21B that hangs downward along the front edge of the outer peripheral edge of the lid plate portion 21A; And a side plate portion 21C that hangs downward along both side edges.

  An upper mounting portion 22 that protrudes laterally is provided at the lower end edge of the side plate portions 21C (see FIG. 5). Each upper mounting portion 22 is formed with an upper bolt hole 23 penetrating in the vertical direction. When the upper shell 21 and the lower shell 31 are assembled, the upper mounting portion 22 is located above the lower mounting portion 33. The upper bolt hole 23 and the lower bolt hole 34 are arranged coaxially and continuously in the vertical direction (see FIG. 2).

  A pair of fixing pieces 24 that are caulked to the lower shell 31 in a state where the upper shell 21 and the lower shell 31 are assembled are provided on both side plate portions 21C of the upper shell 21 at positions corresponding to the recesses 35. It has been. The fixing piece 24 has a shape extending downward from the lower end edge of the side plate portion 21C, and is caulked from below to the concave portion 35 of the lower shell 31, whereby the upper shell 21 and the lower shell 31 are fixed. . At this time, each fixing piece 24 is fixed in a state where it is accommodated in the recess 35 without protruding to the lower side or the side of the shell 20.

  The rear end portion of the upper shell 21 is a protruding portion 25 having a shape protruding rearward along the cylindrical portion 37. The protruding portion 25 has a semicircular arc shape opened downward along the circumferential surface of the cylindrical portion 37 and covers the upper side and both sides of the cylindrical portion 37. As shown in FIG. 1, the protruding portion 25 protrudes to a position behind the cylindrical portion 37 and covers the cylindrical portion 37 and a part of the shield conductive path 10.

  The rear end of the protrusion 25 is an insertion port 26 through which the shield conductive path 10 is inserted. The insertion opening 26 has a semicircular arc shape opened downward. The edge of the insertion opening 26 is a folded portion 27 that is folded back so as to be in close contact with the outer peripheral surface of the protruding portion 25 over the entire edge, and the cut surface is outside the protruding portion 25 (the side through which the shield conductive path 10 is inserted) Is on the other side.

  A pair of caulking pieces 28 are integrally provided on the projecting portion 25. The pair of caulking pieces 28 has a shape that extends downward from the lower end edge of the projecting portion 25, and has a length dimension that overlaps with each other while being caulked to the outer peripheral side of the cylindrical portion 37.

Next, the procedure for assembling the shield connector C will be described.
First, after all the electric wires 11 are inserted into the cylindrical portion 37 and the terminals 13 are accommodated in the housing 14, the connector connecting portions 15 of the housing 14 are fitted into the fitting ports 32 of the lower shell 31. Then, after covering the outer peripheral surface of the cylindrical portion 37 with the terminal portion of the shield member 12, the upper shell 21 is covered from above the housing 14. Then, the protruding portion 25 of the upper shell 21 covers the cylindrical portion 37 of the lower shell 31, and the pair of caulking pieces 28 hang down below the cylindrical portion 37. When the caulking piece 28 is caulked to the outer periphery of the tubular portion 37, the terminal portion of the shield member 12 is sandwiched between the caulking piece 28 and the tubular portion 37 and is fixed to the shell 20 so as to be conductive. Next, by caulking the fixing piece 24 to the lower shell 31, the upper shell 21 and the lower shell 31 are fixed at the position of the caulking piece 28 and the position of the fixing piece 24.

  Here, in the conventional case where the end portion of the shield member 12 is fixed by caulking or the like, the caulking is first caulked, then the upper shell is put on, and finally the upper shell fixing piece is lowered. Between the caulking and caulking operations such as caulking to the side shell, there is an operation of covering the upper shell while aligning the lower shell.

  However, in this embodiment, the caulking piece 28 is formed integrally with the upper shell 21, so that after the upper shell 21 is put on the lower shell 31, the caulking piece 28 and the fixing piece 24 are caulked in the same process. It is possible to attach. Therefore, the operation | work concerning the assembly | attachment of the upper and lower shells 21 and 31 can be performed smoothly, and the manufacturing efficiency of the shield connector C can be improved.

  Further, since the caulking piece 28 is provided on the upper shell 21 and the cylindrical portion 37 is provided on the lower shell 31, the upper shell 21 and the lower shell 21 are positioned at the position where the caulking piece 28 is caulked to the cylindrical portion 37. The side shell 31 is fixed. That is, since the caulking piece 28 and the cylindrical portion 37 also serve as a fixing means for fixing the upper shell 21 and the lower shell 31, this fixing means can be reduced accordingly. In addition, since a pair of caulking piece 28 overlaps and is caulked, the adhering force is strong.

  The shield connector C assembled in this way is connected to a mating connector (not shown) provided on the motor side. At this time, the upper mounting portion 22 overlaps the upper side of the lower mounting portion 33, and the upper bolt hole 23 and the lower bolt hole 34 are arranged coaxially in the vertical direction. By bolting through the holes 23 and 34, the upper shell 21, the lower shell 31, and a motor-side wall (not shown) or the like (ground member) are fixed at one time. Thereby, compared with the case where the upper shell and the lower shell are separately bolted and fixed to the case, the attaching operation of the shell 20 can be easily performed.

  Further, the upper shell 21 and the lower shell 31 are assembled in the front end position (position of the bolt holes 23 and 34), the intermediate position (position of the fixed piece 24), and the rear end position (position of the crimping piece 28). Among them, the bolt holes 23 and 34 also serve as attachment means for the case, and the caulking piece 28 also serves as a fixing means for the shield member 12. That is, since the fixing means that only fixes the upper and lower shells 20 is only the fixing piece 24, the structure of the shell 20 is simplified and the fixing work is reduced as compared with the case where a plurality of fixing means are provided. The manufacturing cost of the shield connector C can be reduced.

  When the shield connector C is used, even if the shield conductive path 10 is bent and touches the edge of the insertion opening 26 of the shell 20 by pulling the shield conductive path 10 or the like, the edge is connected to the folded portion 27. Therefore, the edge of the cut surface does not contact the shield conductive path 10, and the shield conductive path 10 is prevented from being damaged. Thereby, in order to prevent damage to the shield conductive path 10 as in the prior art, it is not necessary to attach a protective member along the cut surface, and the number of parts can be reduced accordingly. In addition, the tape winding which is not illustrated is given to the part which is exposed from the protective tube which is not illustrated in shield conductive path 10.

  According to the present embodiment, the upper shell 21 is integrally formed with the caulking piece 28 that is clamped to the outer peripheral side of the cylindrical portion 37 with the terminal portion of the shield member 12 interposed therebetween. Compared with the case where the terminal portion of the shield member 12 is caulked with the parts, the number of parts is reduced, and thus the manufacturing cost can be reduced.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.

(1) In the above embodiment, the shell 20 is composed of two parts, that is, an upper shell 21 and a lower shell 31 that can be assembled to each other. It is good.
(2) In the above embodiment, the cylindrical portion 37 is caulked by the pair of caulking pieces 28, but may be caulked by only one caulking piece.

(3) In the said embodiment, although the edge part of the insertion port 26 is made into the folding | returning part 27, it does not necessarily need to be made into the folding | returning part.
(4) In the above embodiment, the upper bolt hole 23 and the lower bolt hole 34 are set so as to be coaxially arranged in the vertical direction, but the upper bolt hole and the lower bolt hole do not overlap each other. It may be arranged in

  (5) In the above embodiment, the caulking piece 28 is provided on the upper shell 21 and the cylindrical portion 37 is provided on the lower shell 31. However, both the caulking piece and the cylindrical portion are provided on either shell. The caulking piece may be provided on the lower shell, and the cylindrical portion may be provided on the upper shell.

Side sectional view of shield connector in the present embodiment Plan view Top view of lower shell Side view Rear view of upper shell Cross-sectional side view

Explanation of symbols

C ... Shield connector 10 ... Shield conductive path 11 ... Electric wire 12 ... Shield member 13 ... Terminal 14 ... Housing 20 ... Shell 21 ... Upper shell 23 ... Upper bolt hole 24 ... Fixed piece 26 ... Insertion port 27 ... Folded portion 28 ... Caulking piece 31 ... Lower shell 34 ... Lower bolt hole 37 ... Cylindrical part

Claims (6)

A shield connector connected to a terminal portion of a shield conductive path formed by collectively enclosing a plurality of electric wires by a shield member made of a braided wire,
A housing capable of accommodating a terminal connected to the terminal portion of the electric wire, and a metal shell capable of accommodating the housing,
The shell is integrally formed with a cylindrical portion that can be inserted into the inner peripheral side of the electric wire drawn from the housing, and the end portion of the shield member is covered on the outer peripheral side of the cylindrical portion. And
The shield connector, wherein the shell is integrally formed with a caulking piece that is clamped to an outer peripheral side of the cylindrical portion with the end portion of the shield member interposed therebetween. The shield connector according to claim 1, wherein a pair of the caulking pieces are provided. The shell has a shape that covers up to the end opposite to the housing side of both ends in the axial direction of the cylindrical portion, and the shield conductive path is inserted into the end opposite to the housing side. An insertion opening is formed,
3. The shield connector according to claim 1, wherein an edge portion of the insertion opening is a folded portion that is folded back to the outer peripheral side. The shell is composed of a first shell and a second shell that can be assembled with each other,
The cylindrical portion is formed in one of the first shell and the second shell, and the caulking piece is formed in the other shell. The shield connector of any one of Claims. The first shell and the second shell are respectively formed with bolt holes for attaching them to the ground member, and the bolt holes are coaxial with the first shell and the second shell assembled. The shield connector according to claim 4, wherein the shield connector is formed so as to be continuous with the connector. One of the first shell and the second shell is provided with a fixing piece that is caulked to the other shell in a state in which the first shell and the second shell are assembled. Item 6. The shield connector according to item 4 or 5.

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