JPH0645009A - Shielding case for connector and shielded connector using it - Google Patents

Abstract

PURPOSE: To interconnect a pair of shield cables, and simultaneously shield a connector by providing wire receiving slots at a free end of a base by cutting up one part thereof, and pressure connecting the grounding wire of an electric cable. CONSTITUTION: The end portion of a rib 45 is integrated with an abutting face portion 52 adjoining to a corresponding sidewall 34, and is engaged with an end portion 32 to which a positioning bar 28 corresponds. The end portion of the rib 45 is integrated with an adjoining abutting face 52 apart from the sidewall 34, and is engaged with the end portion 32 to which the bar 28 corresponds. The end portion of the rib 45 a long recessed portion 54 apart from the sidewall 34 and cooperating with the side wall 34 so as to receive the central portion 30 of the bar 28 to which a lower portion housing 2 corresponds. Respective wire receiving portions 66 are formed of confronting arms 70 rising from legs 64, and receive wires in slots 68. Then the shielding case is equipped with the slot 68 receiving a grounding wire, the grounding wire of an electric cable can be pressure connected to its terminal, a pair of shield cables are compression connected, and a connector is shielded.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shield case for a connector to which an electric cable is connected, and more particularly to a shield case for a connector connected to a drain wire (ground wire) of an electric cable and a shield type connector using the same.

[0002]

2. Description of the Related Art U.S. Pat. No. 3,842,392 discloses a parts kit (connector) for an electrical connector assembly. The parts kit includes a first insulating housing, a second insulating housing, and signal wire receiving electrical terminals. The first insulative housing includes a base and a wire stuffer member molded upright therefrom. The second insulating housing has a base having a terminal receiving opening formed therein. A signal wire receiving electrical terminal is received in each terminal receiving opening with the signal wire receiving portion of the terminal protruding from the base of the second housing. A second housing having a terminal received in the terminal receiving opening and a signal wire extending across the wire receiving portion of the terminal is matable and a wire stuffer member presses the wire against the wire receiving portion of the terminal.

However, this known kit of parts is not intended to provide a shielded electrical connector or to be used with electrical cables having drain wires.

[0004]

The shield case for a connector and the shield type connector using the same of the present invention are characterized by the following points. That is, the connector shield case of the present invention is, in a connector shield case using an electric cable having a ground wire, at least a flat base and a side wall standing upright at substantially right angles to the base, and a part of the base. Forming at least one terminal having a wire receiving slot for receiving the ground wire at a free end thereof, and pressingly connecting the ground wire of the electric cable to the wire receiving slot of the terminal. And

Further, the shield type connector of the present invention is a shield type connector for interconnecting at least one pair of electric cables, and a housing for holding signal pressure contact type terminals for interconnecting signal lines of the electric cables, and a flat plate. Shield having at least one pair of ground pressure contact terminals formed by cutting and raising a part of the base, the shield having a base and a side wall standing at a right angle from the base, and housing the housing therein. A case, and a signal line and a ground line of the electric cable are interconnected by the pressure-contact type terminal of the housing and the pressure-contact type terminal for grounding of the shield case, respectively.

The shield case for the connector can be easily stamped and formed from a single sheet of metal stock to include drain wire receiving terminals. When the parts of the connector assembly kit (shield type connector) are assembled, the shield and the other shield cooperate with each other to hold the housing. The housing may be provided with interengaging means for positioning them when the housings are mated to ensure that the latching means of the shield are interengaged when the housings are fully mated.

Another feature of the invention is a stamped and formed metal shield for the connector.

The connector assembly kit may be configured to interconnect each signal wire and each drain wire of the electrical cable pair.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of a shield case for a connector of the present invention and a shield type connector using the same will be described below in detail with reference to the accompanying drawings.

As shown in FIG. 1, a connector assembly kit for providing a shielded connector includes an insulative upper housing 2 and an insulative lower housing 4, which are connected by a carrier strip 6, and a pair of common electric terminal pairs. 8 and 10, a metal upper shield 12 (shield case) and a lower shield 14 (shield case). The connector assembly kit is assembled around a pair of electric cables C1 and C2. The signal wires (signal wires) W1 and W2 of the electric cables C1 and C2 are made common, and the drain wire (ground wire) W3 is connected to the upper shield 12 and the lower shield 14.
Grounded. Each electric cable C1, C2 has an insulating jacket J.

The upper housing 2 and the lower housing 4 are integrally molded by a carrier strip 6. The upper housing 2 has a rectangular base 16, which is square in plan view and has a flat outer peripheral rim 18 extending outwardly thereof. Inside the rim 18, there are four parallel rectangular cross-section elongated wire stuffer ribs 20 rising from the base 16, and the wire stuffer ribs 20 (hereinafter simply referred to as ribs) have three terminals between them. Slots 22, 24 and 26 are formed to receive the wire connections. rib
Each end of the 20 is defined by a planar positioning bar that rises above the ribs 20 from the base 16. Each locator bar 28 has a central portion 30 and end portions 32 at each end that are lower in height and shorter than the central portion 30.

The lower housing 4, which is generally rectangular and square in plan, has opposite side walls 34 and opposite end walls 36. Each end wall 36 has two parallel electric cables C
1. It has notches 38 and 40 for receiving C2. A flat cable support surface 42 extends inwardly of the lower housing 4 from the base of each notch 38 and 40 between the side walls 34. The notches 38, 40 of each pair are separated by a central partition wall 41. The lower housing 4 has a flat base 44, from which ribs 45 rise from which the blind slots 46, 48 each receive two comonning strips and are wider than the blind slots 46, 48. , A through slot 50 is formed to receive the terminal. Each cable support surface 42 is integral with an abutment surface 52 adjacent a corresponding side wall 34 and is engaged by a corresponding one corresponding end portion 32 of the positioning bar 28. The ends of the ribs 45 are spaced apart from the corresponding side walls 34.
Lower housing 2 in cooperation with 34 to form elongated recess 54
It is adapted to receive the central portion 30 of the corresponding positioning bar 28. Each side wall 34, each end wall 36 and each partition wall 41 has a flat upper surface so that they can be fitted to face the rim 18 of the upper housing 2.

Each terminal pair 8 and 10 has a terminal (signal pressure contact terminal) 58 and a terminal (signal pressure contact terminal) 60 projecting from the opposite end of the straight commoning strip 62.
The terminal pairs 8 and 10 are the same. Each terminal 58, 60 has a leg 64 and a wire receptacle 66 flush with the commoning strip 62. As shown in FIG. 2, each wire receiving portion 66 is formed by two opposing arms 70 rising from the legs 64 and has a slot 68 for receiving the wire. A leg 72 of a U-shaped yoke 74 depends from the top of each arm 70, the yoke extending across the slot 68 and acting as a backing.

The metal top shield 12 has a flat square base 76, opposite end walls 78 and opposite side walls 80 that are substantially higher than the end walls 78, each side wall 80 having an elongated through slot 82. Are formed. The end wall 78 has a narrow end 83 flush with the side wall 80. The upper shield 12 is a rectangular base of the upper housing 2 between its end wall 78 and side wall 80.
Dimensioned to accept 16

The lower shield 14 made of metal has a square base
84, opposite end walls 86 and opposite side walls 88 that are substantially higher than the end walls 86. The end wall 86 has a narrow end 89 that is flush with the side wall 88. Each sidewall 88 has a rib 90 extending longitudinally and projecting outwardly for snap engagement with a corresponding slot 82 in the top shield 12. The lower shield 14 is sized to receive the lower housing 4 between its end walls 86 and side walls 88. Two identical terminals (grounding pressure contact terminals) 92, 94 for receiving the drain wire are projected from the base 84. The terminals 92, 94 are precisely positioned relative to each other in a direction perpendicular to the plane of the sidewall 88. Terminals 92, which are the same as terminals 58 and 60,
94 has a leg 64 protruding from the base 84, and a wire receiving portion 66, and the wire receiving portion 66 can be inserted into the through slot 50 of the base 44 of the lower housing 4.

When preparing the electric cables C1 and C2 for connection, the insulation jackets are peeled off from the middle portions of the electric cables C1 and C2 so that the signal wires W1 and the drain wires W3 of the electric cables C1 and C2 are the same. Only the length is exposed.

Before assembling the above-mentioned parts into the electric cables C1 and C2, the upper housing 2 and the lower housing 4 are assembled.
The carrier strip 6 connecting the two is cut at a position close to the housing. The commoning strip 62 of the terminal pair 10 is inserted into the blind slot 46 of the lower housing 4, and the commoning strip 62 of the terminal pair 8 is inserted into the blind slot 48 of the lower housing 4 to connect at least the wires of the terminals 58, 60. The receiving portion 66 is located above the rib 45 of the base 44. The commoning strips 62 are arranged vertically in their corresponding blind slots 46,48. At that time, the terminal pair 8, 10
The distance between the centers of the terminals 58 of the signal wire W of the electric cable C1
Equal to the center distance between 1 and W2, the terminals of terminal pair 8 and 10
The center distance between 60 is the signal wire W1 of the electric cable C2,
Equal to the center spacing between W2. Two electrical cables C1,
The spacing of the C2 wires is substantially the same.

The lower housing 4 is disposed within the lower shield 14 and the wire receiving portions 66 of the terminals 92, 94 are received through the through slots 50 of the lower housing 4. The wire receiving portions 66 of these terminals 92 and 94 project above the ribs 45. The distance between the terminals 92 and 94 is about the electric cables C1 and C.
When 2 is placed in the notches 38, 40 respectively, it is the same as the center-to-center distance between their drain wires W3. The upper shield 12 is mounted on the base 16 of the upper housing 2. The electric cables C1 and C2 have their insulation jackets J
Are located in the cutouts 38, 40 and the exposed wire portions are arranged in the corresponding cutouts 38, 40 so as to extend across the ribs 45. As best shown in FIG. 6, the upper housing 2 mates with the lower housing 4 so that the central portion 30 of the positioning bar 28 of the upper housing 2 is received in the recess 54 of the lower housing 4 and the end portion 32 of the positioning bar 28 is received. Is in front contact with the abutment surface 52 of the lower housing 4, and the rim 18 of the upper housing 2 is in surface contact with the surface 56 of the lower housing 4. The lower shield 14 as best shown in FIGS.
The rib 90 snaps into the slot 82 of the upper shield 12, and the upper housing 2, the lower housing 4, the upper shield 12 and the lower shield 14 are securely latched in a mating relationship. During the mating operation, the signal wires W1, W2 of the electrical cable C1 are received in the wire receiving slots 68 of the terminal 58, and the signal wires W1, W2 of the electrical cable C2 are terminal 60.
Received in the wire receiving slot 68 of the electric cable C
The drain wires W3 of 1, C2 are received in the wire receiving slots 68 of the terminals 92, 94. The wire receiving portion 66 of the terminal of the terminal pair 10 is inserted into the slot 22 of the upper housing 2, and the wire receiving portion 66 of the terminal of the terminal pair 8 is inserted into the slot 24 of the upper housing 2 and the wire receiving portions of the terminals 92 and 94. The 66 is inserted into the slot 26 of the upper housing 2. The ribs 20 of the upper housing 2 correspond to the wire receiving slots 68 of the corresponding terminals.
The corresponding signal wires W1, W2 and drain wire W3 are pushed into the inside of the wire, and each wire W1, W2, W3 is securely and permanently electrically connected to the corresponding terminal. As a result, the signal wire W1 of the electric cable C1 is commonly connected to the signal wires W1 and W2 of the electric cable C2. Further, the signal wire W2 of the electric cable C1 is commonly connected to the signal wire W2 of the electric cable C2,
The drain wire W3 of No. 1 is commonly connected to the drain wire W3 of the electric cable C2, the upper shield 12, and the lower shield 14. Insulation jacket J for electric cables C1 and C2
Is securely retained in the notches 38, 40 of the lower housing 4 by the rim 18 of the upper housing 2. Electric cable C
The relative placement of the parts of the parts kit during assembly to C1, C2 is best shown in FIGS. During the mating operation, the sidewalls 80 and ends 83 of the upper shield 12 mate with the sidewalls 88 and ends 89 of the lower shield 14, respectively, so that the upper housing 2 and the lower housing 4 are in the upper portion, as best shown in FIG. It is regulated by the shield 12 and the lower shield 14.

[0019]

The connector shield case of the present invention is
A structure is provided in which a ground pressure-contact terminal having a wire receiving slot for receiving a ground wire is formed by cutting and raising a part of a base, and the ground wire of the electric cable is pressure-connected to the terminal, and a signal wire of the electric cable is connected. The configuration is such that the housing having the signal pressure contact type terminals to be connected is held in the shield case. Therefore, the shielded cable pair can be interconnected and the connector can be easily shielded, which facilitates assembly. Also, it is easy to manufacture a pressure contact type terminal for grounding,
The number of parts is small.

[Brief description of drawings]

FIG. 1 is a perspective view of a shielded connector of the present invention that provides a shielded electrical connector assembled to a flat electrical cable.

FIG. 2 is an enlarged partial perspective view of wire receiving portions of a plurality of terminals of the shielded connector of the present invention.

FIG. 3 is an exploded perspective view of the shielded connector of the present invention.

4 is a front view of the shielded connector shown in FIG.

FIG. 5 is an enlarged perspective view of the shielded connector of the present invention.

FIG. 6 is a perspective view similar to FIG. 5, partially shown in section.

[Explanation of symbols]

 14 Shield case for connector 58, 60 Pressure contact type terminal for signal 92, 94 Pressure contact type terminal for ground 68 Wire receiving slot 84 Base 88 Side wall C1, C2 Electric cable W1, W2 Signal wire W3 Ground wire

Claims (2)

[Claims] 1. A shield case for a connector using an electric cable having a grounding wire, which has at least a flat base and a side wall which stands up at a right angle to the base, and cuts and raises a part of the base. At least one terminal having a wire receiving slot for receiving the ground wire is formed at a free end, and the ground wire of the electric cable is press-connected to the wire receiving slot of the terminal. Case. 2. A shield-type connector for interconnecting at least one pair of electric cables, a housing for holding signal pressure-contact terminals for interconnecting signal lines of the electric cables, a flat base, and a substantially right angle from the base. A shield case that houses the housing therein, having at least one pair of pressure contact terminals for grounding formed by cutting and raising a part of the base. 2. The shielded connector, wherein the signal line and the ground line are interconnected by the pressure contact type terminal of the housing and the pressure contact type terminal for grounding of the shield case, respectively.