JP2003243089A - Shield connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a shield connector capable of securing resistance to pull-off of a cable and preventing the cable from being damaged. <P>SOLUTION: A plug 20 (shield connector) with which a terminal part of a flat cable 10 is connected comprises a base 22 formed by integrating a base- side shell 30 with a base-side housing 20, and a cover part 23 assembled to the base so as to be opened/closed freely and having a cover-side shell 70. The base-side shell 30 and the cover-side shell 70 have a pair of wire press parts 36, 78 for clipping the flat cable 10 from a thickness direction at the rear end position of the connector. The base-side shell 30 is formed by folding a metallic plate at a folding edge part 36A to be in two-sheet layering, condition, and an outer surface of the folding edge part 36A is brought into contact with the flat cable 10 by the wire press part 36. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shield connector used by connecting to a terminal of a cable.

[0002]

2. Description of the Related Art As a connector of this kind, Japanese Patent Laid-Open No. 2001
The thing described in 307822 publication is known.
FIG. 13 shows the rear end portion of this connector. The flat cable 100 connected to this connector is formed in a strip shape by covering a plurality of shielded electric wires 101 in parallel with each other and covering them with a film. In the terminal, the shield layer 102 of each shielded electric wire 101 is paired with a pair of conductive wires. The short-circuit body 103 is fixed by being sandwiched between the plates and soldered to each other, and the core wire (not shown) of each shielded electric wire 101 is exposed beyond that. The short-circuit body 103 is held in the housing 104 of the connector, and the core wire of each shielded electric wire 101 is the same as the housing 1.
It is individually connected to the terminal fittings (not shown) held by 04. Further, the shield shell 105 is attached so as to cover the periphery of the housing 104, and by connecting the shield shell 105 to the shield layer 102 of each shield electric wire 101 via the short-circuit body 103,
Shielding effects such as removing radiated noise can be obtained. Also, at the rear end of this connector,
The upper wall portion 105A of the shield shell 105 and the housing 1
When the flat cable 100 is pulled in the thickness direction (vertical direction) by sandwiching the shielded electric wire 101 with the rear wall portion 104A of 04, the short-circuit body 103 is fixed to the fixed portion (denoted by reference numeral S) or the like. It prevents the load.

[0003]

However, in such a connector, since the housing 104 and the shield shell 105 are formed to have an extremely small thickness due to a demand for miniaturization, the flat cable 100 extending from the housing 104 is formed. Is strongly pulled in the thickness direction, the housing 104 and the shield shell 105 are deformed.
There was a risk of cutting from the fixed portion S of. Further, when the flat cable 100 is pulled in the thickness direction, the shielded electric wire 101 may be pressed against the corner portion of the housing 104 or the shield shell 105 and damaged. The present invention has been made in view of the above circumstances, and an object thereof is to provide a shielded connector capable of ensuring strength against pulling of a cable and preventing damage to the cable.

[0004]

A shield connector according to the invention of claim 1 for solving the above problems is used by connecting to a terminal portion of a cable having a plurality of shielded electric wires. The shielded wires are held in parallel in the lateral width direction in the housing, and a shield shell connectable to the shield layer of each shielded wire is provided so as to cover the housing, and the shielded shell is provided. In the shell, a lid-side shell that sandwiches a terminal portion of the cable between the shell and the base-side shell is provided so as to be openable and closable, and the base-side shell and the lid-side shell are the housing from which the cable is drawn out. At the rear end position, a pair of electric wire retainers for sandwiching the cable from the thickness direction is provided, and at least one of the two shells On the other hand, one of the shells is formed in a two-ply shape by folding back the metal plate at the folding edge portion, and further, the wire holding portion is configured to bring the outer surface of the folding edge portion into contact with the cable. It has a feature in that it exists.

According to a second aspect of the present invention, in the first aspect, the base side shell is integrated with the housing by insert molding.

The invention of claim 3 relates to claim 1 or claim 2.
In the one described above, in the one shell,
It is characterized in that the wire holding portion is formed by raising the peripheral portion of the folded edge portion formed at the rear end position of the connector in the thickness direction.

[0007]

According to the inventions of claims 1 and 3, since the shield shells are formed in a two-layered structure, the strength against the pulling of the cable in the thickness direction is secured. . Further, in the wire holding portion, the smooth surface formed on the outer surface of the folded edge portion is brought into contact with the cable, so that the wire holding portion can prevent the cable from being damaged.

According to the second aspect of the present invention, by molding the base side shell integrally with the housing, the base side shell and the housing closely contact and support each other, so that the strength can be secured.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION <First Embodiment> Next, a first embodiment of the present invention will be described with reference to FIGS. The shield connector 20 (hereinafter, referred to as a plug) of the present embodiment is used by being connected to the terminal portion of the flat cable 10 (corresponding to the "cable" of the present invention), and the receptacle side attached to the circuit board P. It can be fitted into a connector 80 (hereinafter, referred to as a receptacle).

As shown in FIG. 1, the flat cable 10 comprises a plurality of (10 in the figure) shielded wires 11 fixed in parallel, and the core wire 12 of each shielded wire 11 is exposed from its end. Are projected in parallel at a constant pitch. Further, on the base end side of the core wire 12,
All shield layers that cover the periphery of each core wire 12 (not shown)
Are fixed in a short-circuited state by the plate-shaped short-circuit plate 13. Further, the leading ends of the core wires 12 are aligned with each other in the alignment sheet 14
Is held at a predetermined pitch by.

As shown in FIG. 1, the plug 20 is composed of a base portion 22 on which a plurality of plug-side terminal fittings 50 are mounted, and a lid portion 23 which is openably and closably attached to the base portion 22. Base 2
2 includes a horizontally long box-shaped fitting portion 24 that can be fitted to the receptacle 80 side, and a groove-shaped cable connection portion 25 that is located at an upper end of the fitting portion 24 and extends in the front-rear direction. It is composed of a side shell 30 (corresponding to “one shell” of the present invention) and a base side housing 60 (corresponding to “housing” of the present invention) integrated with the side shell 30.

The base side shell 30 is formed into a shape shown in FIGS. 2 to 4 by cutting a single conductive metal plate into a predetermined shape and then bending it. The lower portion of the base side shell 30 is a square tube portion 31 that opens vertically,
This constitutes the outer peripheral wall of the fitting portion 24. At the upper end of the rectangular tube portion 31, a front bottom plate portion 32 extends horizontally from the front edge portion thereof toward the front, and a rear bottom plate portion 33 extends horizontally from the rear edge portion thereof toward the rear. Has been done. Both bottom plate portions 32 and 33 form a part of the bottom surface of the cable connecting portion 25 on which the flat cable 10 is placed, and as shown in FIG. 8, metal plates are folded at the front end portion or the rear end portion, respectively. By overlapping, most of the area is formed in a two-layered shape. On the upper surface of the rear bottom plate portion 33,
By cutting and raising a part thereof, a pair of left and right elastic support pieces 34 that rise in a cantilever manner obliquely upward are formed,
Furthermore, a pair of fixing pieces 3 that stand vertically on the left and right sides
5 is formed. Further, at the rear end of the rear bottom plate portion 33, a folded edge portion 3 formed by folding back a metal plate.
The electric wire pressing portion 36 is formed by raising the peripheral portion of 6A obliquely upward. Lock receiving pieces 37 that stand upright are formed on the left and right ends of the bottom plate portions 32 and 33. Further, elastic contact portions 38 that extend in a cantilever manner obliquely upward are formed on both left and right side walls of the rectangular tube portion 31. Further, a total of four plate-shaped terminal portions 39 are extended from the left and right side end positions of the upper surfaces of the bottom plate portions 32 and 33, and the square tubular portion 3 is formed.
It hangs inside 1.

The base side housing 60 is made of synthetic resin and is integrally molded with the base side shell 30 by insert molding (see FIGS. 5, 6 and 8). A plurality of (10 in the figure) terminal mounting holes 61 that open vertically are formed in the fitting portion 24 in the base side housing 60, and the plug side terminal fitting 50 can be mounted in each terminal mounting hole 61. There is. The terminal mounting holes 61 are provided side by side in two rows (five in the figure) in the front-rear direction in the lateral width direction, and the plug-side terminal fittings 50 are mounted in the front-rear and front-reverse directions. Further, the front-side terminal mounting holes 61 are located in the middle of the rear-side terminal mounting holes 61, and the front-side terminal mounting holes 61 and the rear-side terminal mounting holes 61 are arranged in a zigzag arrangement with a 1/2 pitch offset.

The plug-side terminal fitting 50 is formed by bending a conductive metal plate piece into an S shape, and has a spring contact portion 51 having a pair of arm portions 51A extending side by side at one end thereof. A tab-shaped terminal connecting portion 52 is formed at the other end. In the spring contact portion 51, the pair of arm portions 51A are made to be able to bend and deform in a direction in which they are separated from each other and approaching each other, and the core wire 12 of the flat cable 10 is interposed therebetween.
The electrical connection is made by pinching. Two press-fitting protrusions 53 are formed on both ends of the terminal connecting portion 52, and these press-fitting protrusions 53 are used for the terminal mounting holes 61.
The plug-side terminal metal fitting 50 is prevented from coming off by biting into the inner wall of the. When the plug-side terminal fitting 50 is mounted in the terminal mounting hole 61, the tip of the spring contact portion 51 projects above the bottom surface of the cable connecting portion 25, and the flat cable 10 can be connected to the core wire 12. There is. Further, inside the rectangular tube portion 31, the terminal connecting portion 52 is in a state connectable with the receptacle-side terminal fitting 82. In addition,
The terminal portions 39 of the base side shell 30 are arranged at the same pitch as the plug side terminal fittings 50 on both left and right sides of the terminal connecting portions 52 of the plug side terminal fittings 50 aligned on the front side and the rear side so as to be sandwiched therebetween. It is in a state in which it can be connected to the receptacle-side terminal fitting 82.

In the base side housing 60, a groove 62 for partitioning the shielded wires 11 of the flat cable 10 is formed on the bottom surface of the cable connecting portion 25. Side wall portions 63 are formed on both left and right sides of the cable connecting portion 25 along the front-rear direction. A finger hooking portion 64 is formed so as to project on the outer side surface of the side wall portion 63, and a locking hole 64A penetrating vertically is provided inside the finger hooking portion 64,
The tip of the elastic contact portion 38 is arranged inside the locking hole 64A.

The lid portion 23, as shown in FIGS. 1 and 8,
The lid side shell 70 and the lid side housing 7 integrated with this
1 and 1. The lid-side shell 70 is formed into a shape shown in FIG. 7 by cutting one conductive metal plate into a predetermined shape and then bending it. That is, the lid-side shell 70 is formed from the outer peripheral edge of the rectangular ceiling wall 72 to the front wall 7.
3, the rear wall 74 and the pair of side walls 75 are vertically raised, respectively, and have a shape capable of covering the cable connecting portion 25 from above. On the lower surface of the ceiling wall 72, a lid-side housing 71 made of synthetic resin is formed by insert molding so as to be integrated with the lid-side shell 70. The lid-side housing 71 is used for the ceiling wall 7
2 has a plate-like shape, and a plurality of pressing ribs 76 project from the lower surface thereof, and when the lid 23 is assembled to the base 22, the pressing ribs 76 connect the core wire 12 of the flat cable 10 to the spring contact portion. It is possible to press down to a depth position where contact with 51 is secured. Further, the ceiling wall 72 is formed with a pair of left and right elastic pressing pieces 77 that cantilever upright to the lower side by cutting and raising a part thereof rearward of the lid-side housing 71. An electric wire pressing portion 78 is horizontally extended from the lower end of the rear wall 74 toward the rear, and the electric wire pressing portion 78 and the tip of the electric wire pressing portion 36 of the base side shell 30 (folded edge portion 36A). The flat cable 10 can be held between and. On the side wall 75, a lock projection 75A that can be locked to each lock receiving piece 37 is formed, and a press-fitting portion 79 that can be pressed into the locking hole 64A and locked can be formed in the center thereof.

On the other hand, as shown in FIGS. 1, 9 and 10, the receptacle 80 has a receptacle-side housing 81 made of synthetic resin and a plurality of receptacle-side terminal fittings 82.
And is configured. The receptacle-side housing 81 has a tubular fitting portion 83 whose upper surface is open, and is fixed onto the circuit board P. The receptacle-side terminal metal fittings 82 are divided into two rows, the front side and the rear surface side, and are attached to the cylindrical fitting portion 83 so as to be aligned in the left and right at a fixed pitch by seven pieces in the drawing respectively. Reference numeral 82 is located in the middle of the rear side, and the front side and the rear side are arranged in a staggered arrangement with a 1/2 pitch offset. The receptacle-side terminal fitting 82 is made of a conductive metal plate piece, and a board connecting portion 84 formed at one end thereof extends horizontally from the bottom of the tubular fitting portion 83 to the outside and is soldered to the circuit board P. Connected to the circuit above. In particular, the board connecting portions 84 of the front and rear receptacle-side terminal fittings 82 at both ends are connected to the ground circuit on the circuit board P. An elastic contact piece 85 is formed at the other end of the receptacle-side terminal fitting 82, and is erected inside the tubular fitting portion 83. Note that when the plug 20 is fitted in the receptacle 80, the plug-side terminal metal fitting 50 is provided between the receptacle-side terminal metal fittings 82 arranged in two rows in the front and rear.
Of the receptacle-side terminal fittings 82, except for the front and rear left and right ends, respectively, are connected to the terminal connecting portion 52 of the plug-side terminal fitting 50 by the elastic contact pieces 85. Then, the ones at both ends are connected to the terminal portion 39 of the base side shell 30 by the elastic contact pieces 85.

Next, the assembling procedure will be described. First, the plug-side terminal fitting 50 is inserted into each terminal mounting hole 61 of the base-side housing 60 from below. Then, press fit protrusion 5
3 bites into the inner wall of the terminal mounting hole 61, and the plug-side terminal fitting 50 is locked in a state in which it does not come off. Subsequently, the terminal portion of the flat cable 10 is placed on the cable connection portion 25 from above, the short-circuit plate 13 is locked by the fixing piece 35, and each core wire 12 is connected to the spring contact portion 51 of the corresponding plug-side terminal fitting 50. Hold it in place.

Next, the cable connecting portion 25 is covered with the lid portion 23 from above (see FIG. 10). Each lock protrusion 7
5A is locked to the lock receiving piece 37, and the press-fitting portion 7
By pushing 9 into the locking hole 64A, the lid 23 is locked in the closed state with respect to the base 22. In this state, the elastic support piece 34 of the base side shell 30 and the elastic pressing piece 77 of the lid side shell 70 make the short-circuit plate 13 of the flat cable 10.
On the other hand, the two shells 30 and 70 are elastically contacted from above and below to bring the shells 30 and 70 into conduction through the shield layers of the shielded electric wires 11. Further, the elastic contact portion 38 of the base-side shell 30 elastically contacts the press-fitting portion 79 of the lid-side shell 70 so that the shells 30 and 70 are electrically connected. Further, at the rear end of the cable connecting portion 25, each shielded electric wire 11 of the flat cable 10 is
Are sandwiched between the wire holding portions 36, 78 of both shells 30, 70. With the above, the assembling of the plug 20 is completed.

Next, the fitting portion 24 of the plug 20 is fitted into the cylindrical fitting portion 83 of the receptacle 80. Then, the front side,
The elastic contact pieces 85 of the receptacle-side terminal fittings 82 on the rear side other than those at both end positions elastically contact the terminal connecting portions 52 of the plug-side terminal fittings 50 (see FIG. 11), and the elastic contact pieces 85 at both end positions. Elastically contacts the terminal portions 39 of both shells 30 and 70 (see FIG. 12). This allows
Core wire 12 of each shielded electric wire 11 of the flat cable 10
Is connected to the circuit board P via the terminal fittings 50 and 82 on both sides, and the shield layer of the flat cable 10 is connected to the circuit board P via both shells 30 and 70 and the receptacle-side terminal fitting 82. Thus, the periphery of the terminal portion of the flat cable 10 attached to the cable connecting portion 25 is covered by the bottom plate portions 32 and 33 of the base side shell 30 and the lid side shell 70, and the periphery of the receptacle side terminal fitting 82 is the base portion. By being covered by the rectangular tube portion 31 of the side shell 30, the plug 20 side and the receptacle 8
A shield effect such as elimination of radiation noise can be obtained on both sides of the 0 side.

According to this embodiment, since the two base shells 30 are formed in a stack, the flat cable 1
The strength with respect to 0 in the thickness direction (downward direction) is secured. Therefore, for example, the flat cable 10 can be prevented from being cut from the fixed portion of the short-circuit body 13. Further, in the wire holding portion 36, the smooth surface formed on the outer surface of the folded edge portion 36A is brought into contact with the flat cable 10, so that the wire holding portion 36 can be prevented from damaging the flat cable 10.

Further, by molding the base side shell 30 integrally with the base side housing 60, the base side shell 3 is formed.
Since 0 and the base side housing 60 are in close contact with each other to support each other, strength can be secured.

The technical scope of the present invention is not limited to the above-described embodiment, and the following technical scope is also included in the technical scope of the present invention. (1) In the above embodiment, the two shells on the base side are stacked and the folded edge holds the cable, but the shell on the lid side may be the same. (2) In the above embodiment, a connector for connecting a flat cable formed by arranging a plurality of shielded wires in parallel has been shown, but the present invention can also be applied to a connector for connecting cables of other forms. (3) In the above embodiment, the lid-side shell is provided as a separate body from the base-side shell, but both shells may be integrally formed via a bendable connecting piece, for example.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a plug (shield connector) and a receptacle according to this embodiment.

FIG. 2 is a perspective view of a base side shell.

FIG. 3 is a plan view of a base side shell.

FIG. 4 is a rear view of the base side shell.

FIG. 5 is a plan view of the base portion.

6 is a sectional view taken along the line AA in FIG.

FIG. 7 is a perspective view of a lid side shell.

8 is a sectional view taken along line BB in FIG. 5 showing a state before the flat cable and the lid are assembled to the base.

FIG. 9 is a plan view of the receptacle.

FIG. 10 is a sectional view taken along line BB in FIG. 5 showing a state before the plug and the receptacle are fitted together.

FIG. 11 is a sectional view taken along line BB in FIG. 5, showing a state in which the plug and the receptacle are fitted together.

FIG. 12 is a sectional view taken along the line CC in FIG. 5 showing a state in which the plug and the receptacle are fitted together.

FIG. 13 is a sectional view showing a conventional connector.

[Explanation of symbols]

10 ... Flat cable (cable) 11 ... Shielded wire 20 ... Plug (shielded connector) 30 ... Base side shell (one shell) 36 ... Wire retainer 36A ... folded edge 60 ... Base side housing (housing) 70 ... Lid side shell 78 ... Wire retainer

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[Procedure amendment]

[Submission date] February 20, 2002 (2002.2.2)
0)

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0023

[Correction method] Change

[Correction content]

The technical scope of the present invention is not limited to the above-described embodiment, and the following technical scope is also included in the technical scope of the present invention. (1) In the above embodiment, the two shells on the base side are stacked and the folded edge holds the cable, but the shell on the lid side may be the same. (2) In the above embodiment, the connector to which the flat cable formed by arranging a plurality of shielded wires in parallel is connected is shown. However, in the present invention, a plurality of single shielded wires are connected.
As a cable or other type of flat cable
It is also applied to things such as FPCs and ribbon wires that are connected.
You can (3) In the above embodiment, the lid-side shell is provided as a separate body from the base-side shell, but both shells may be integrally formed via a bendable connecting piece, for example.

Claims (3)

[Claims] 1. A shield connector used by connecting to a terminal portion of a cable having a plurality of shielded electric wires, wherein the shielded electric wires are held in parallel in a lateral direction in a housing, A shield shell capable of connecting to the shield layer of each of the shielded wires is provided so as to cover the housing, and the shield shell can be opened and closed by the lid side shell that sandwiches the terminal portion of the cable between the shield shell and the base side shell. The base-side shell and the lid-side shell each include a pair of wire holding portions that hold the cable from the thickness direction at the rear end position of the housing where the cable is led out. At the same time, at least one of the two shells is formed by stacking two metal plates by folding them at the folding edge. Cage, shielded connector, characterized in that it is configured to further contact the outer surface of the electric wire pressing portion is the folded edge to the cable. 2. The shield connector according to claim 1, wherein the base side shell is integrated with the housing by insert molding. 3. The wire holding portion is formed in the one shell by raising a peripheral portion of the folded edge portion formed at a rear end position of the connector in a thickness direction. The shielded connector according to claim 1 or 2.