JP2000030800A - Electric connector assembly - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric connector assembly for connecting a cable with a circuit board, which surely transmits cable pulling force to the circuit board through a shield cover, and which prevents bending and damage of contacts. SOLUTION: This electric connector is equipped with a first connector 10 connected to a cable 90, and a second connector 60 connected to a master board. A force transmitting part transmitting cable pulling force to a cable side shield cover 30, when the cable 90 is pulled, is provided to a subsidiary board and the cable side shield cover 30 of the first connector 10 connected with the cable 90. A board side shield cover 80 of the second connector 60 is screwed to the cable side shield cover 30 of the first connector 10 by screw means 51, 52.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an electrical connector assembly for interconnecting a cable and a circuit board.

[0002]

2. Description of the Related Art Conventionally, as an electrical connector assembly for interconnecting a cable and a circuit board, for example, the one shown in FIG. 8 is known (see Japanese Utility Model Publication No. 4-54708).

The electrical connector assembly 100 includes a first connector 110 connected to a cable 130 and a second connector 110 connected to a circuit board 140 and fitted with the first connector 110.
And a connector 120.

Here, the first connector 110 includes a plurality of cable-side contacts (not shown) connected to signal conductors (not shown) of the cable 130, an insulating housing 111 for accommodating the cable-side contacts. And a conductive cable-side shield cover 112 that is attached so as to cover the periphery of the housing 111 and shields the cable-side contacts and the signal conductor of the cable 130. Then, the shield portion of the cable 130 is fixed to the cable-side shield cover 112 by the clamp 115 and the screw 116, thereby holding the cable 130 and connecting the shield portion of the cable 130 to the cover 112.

The second connector 120 contacts a cable-side contact of the first connector 110 and a plurality of board-side contacts 121 connected to the circuit board 140.
And a shield screw (not shown) for covering and surrounding the periphery of these board-side contacts 121 and attaching them to the circuit board 140.
Conductive board side shield cover 1 attached and fixed by
22.

In order to fix the first connector 110 to the second connector 120, a latch means 113 is provided between the housing 111 of the first connector 110 and the cable-side shield cover 112.
The board side shield cover 122 of FIG.
An engaging portion 123 with which the third hook portion 114 is engaged is formed. The latch means 113 is rotatably attached to the cable side shield cover 112, and the hook portion 114 engages with the engagement portion 123 by the elastic force of a spring means (not shown) which engages with the cable side shield cover 112. It is supposed to. When the first connector 110 is attached to the second connector 120, the cable-side contact comes into contact with the board-side contact 121, and the signal conductor of the cable 130 is electrically connected to the circuit board 140.
The cable-side shield cover 112 contacts the board-side shield cover 122, and the shield portion of the cable 130 is grounded.

[0007]

By the way, in the conventional electric connector assembly 100, a cable 130 is provided.
Is fixed to the cable-side shield cover 112 by the clamp 115 and the screw 116. Therefore, after the first connector 110 and the second connector 120 are fitted together, the cable 1 connected to the first connector 110
When the cable 30 is pulled, the pulling force of the cable 130 is applied via the clamp 115 to the cable-side shield cover 11.
2 and finally to the circuit board 140 via the board-side shield cover 122 of the second connector 120. For this reason, when the cable 130 connected to the first connector 110 is pulled, the pulling force of the cable 130 is not transmitted to the cable-side contact and the board-side contact 121 of the second connector 120. There is little danger of bending or damage.

However, in the conventional electric connector assembly 100, the cable-side shield cover 112 of the first connector 110 and the board-side shield cover 122 of the second connector 120 are fixed to the first connector 110.
The hook portion 114 of the latch means 113 provided on the substrate side is engaged with the engaging portion 123 of the board-side shield cover 122 by the elastic force of the spring means, and this is merely performed. Therefore, when the cable 130 is pulled, the hook portion 114 of the latch means 113 of the first connector 110 comes off the board-side shield cover 122, the cable-side shield cover 112 comes off the board-side shield cover 122, and the pulling force of the cable 130 is reduced. There is a possibility that the power is not transmitted to the circuit board 140 via the board-side shield cover 122 of the second connector 120.

[0009] Therefore, an object of the present invention is to ensure that when a cable is pulled, the pulling force is transmitted to the circuit board via the shield cover, and that the contact is not bent or damaged by pulling the cable. ,
An object of the present invention is to provide an electrical connector assembly for interconnecting a cable and a circuit board.

[0010]

SUMMARY OF THE INVENTION An electrical connector assembly according to the present invention comprises a sub-board connected to a cable, a cable-side contact connected to the sub-board and conducting with the cable, and the sub-board and the cable. A first connector having a conductive cable-side shield cover that covers and shields the periphery of the side contact, a board-side contact that contacts the cable-side contact and is connected to the parent board, and covers the periphery of the board-side contact; And a second connector having a conductive board-side shield cover attached to and fixed to the parent board, wherein the cable is pulled by the child board and the cable-side shield cover of the first connector. A force transmitting portion for transmitting the tensile force of the cable to the cable side shield cover when the cable is shielded. , Said cable side shield cover and the substrate-side shield cover of the second connector of the first connector is characterized to be screwed and fixed by screw means.

The screw means has a bolt attached to the cable-side shield cover of the first connector, and a nut portion screwed with the bolt. It is effective to use a bolt with a nut for mounting and fixing to the parent board.

Further, it is preferable that the board side contact of the second connector is press-fitted and fixed to an insulating header housing which is locked and fixed to the board side shield cover by elastic locking means.

[0013] The electric connector assembly according to the present invention includes:
A second sub-board that has a sub-board connected to the cable, a cable-side contact connected to the sub-board and conducting with the cable, and a conductive cable-side shield cover that covers and surrounds the sub-board and the cable-side contact; (1) a connector, a board-side contact that comes into contact with the cable-side contact and is connected to the parent board, and a conductive board-side shield cover that covers and shields the periphery of the board-side contact and is attached and fixed to the parent board. And a cable-side contact of the first connector is accommodated in an insulative cable-side housing to constitute a cable-side connector, and the cable-side shield cover is provided on the cable-side housing. It has a housing receiving recess that opens the upper and lower surfaces and covers both sides, The upper and lower surfaces of the cable-side housing of the first connector are provided on the board-side shield cover of the second connector when the cable-side contacts of the first connector and the board-side contacts of the second connector are brought into contact with each other. And a pair of conductive extensions projecting along the inner surface of the housing receiving recess of the cable-side shield cover and covering the upper and lower surfaces of the cable-side housing.

[0014]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of the electrical connector assembly of the present invention in a state where a first connector and a second connector are separated.

In FIG. 1, an electric connector assembly 1 includes:
A first connector 10 connected to a plurality (seven in the present embodiment) of cables 90 and a second connector attached to and fixed to a mother board 91 (see FIG. 4) fitted with the first connector 10.
And a connector 60. Each cable 90 is a coaxial cable including an insulated conductor having a center conductor at the center, and a shield provided around the insulated conductor.

2A and 2B show a sub-board sub-assembly constituting the first connector 10, in which (A) is a plan view, (B) is a right side view,
(C) is a rear view. 3A and 3B show a cable-side shield cover constituting the first connector 10, wherein FIG. 3A is a perspective view of an upper shield cover, and FIG. 3B is a perspective view of a lower shield cover.

As shown in FIGS. 1 and 2, the first connector 10 has a child board 21 and a child board 2 which are soldered to a plurality of cables 90 at a rear end (right end in FIG. 2).
1 includes a sub-board subassembly 20 having a cable-side connector 23 connected to the front end of the first sub-assembly, and a cable-side shield cover 30 that covers the periphery of the sub-board subassembly 20.

The cable-side connector 23 of the sub-board sub-assembly 20 has a plurality of cable-side contacts 26 which are press-fitted into the sub-board 21 and are electrically connected to a plurality of cables 90.
A plurality of module housings 24 accommodating a plurality of cable-side contacts 26 and a plurality of cable-side contacts 26 are press-fitted and fixed to insulate each cable-side contact 26.
And two cable-side housings 25. In this embodiment, each module housing 24 accommodates five cable-side contacts 26, and seven module housings 24 are arranged in the horizontal direction (vertical direction in FIG. 2A), for a total of 35 modules housings. The cable-side contacts 26 are press-fitted and fixed to the cable-side housing 25 while being insulated from each other. Although not shown, the cable side contact 26 has a receptacle part for receiving the post part 71a of the board side contact 71 of the second connector 60 to be fitted with.

A plurality of (seven in the present embodiment) terminal portions 22 which are connected by soldering to the shield portion of the cable 90 are arranged in a row on both surfaces of the rear end of the daughter board 21. I have. Each terminal portion 22 penetrates through the sub-board 21 and is bent to be solder-connected to the ground circuit of the sub-board 21, and a substantially semi-cylindrical disposed around the shield portion of the cable 90 and connected by soldering And a connection portion 22b in the shape of a circle. The shield part of each cable 90 is connected to the cable side contact 2 via the terminal part 22 and the ground circuit on the daughter board 21.
6 ground contacts. The center conductor of each cable 90 is soldered to a signal circuit on the daughter board 21, and the cable-side contact 2 is connected via the signal circuit.
6 signal contacts. There are 35 cable side contacts 26, of which seven signal contacts and seven grounding contacts are used, and the other 21 cable side contacts 26 are not used.

As shown in FIG. 1, the cable-side shield cover 30 is composed of a pair of conductive upper and lower shield covers 31 and 32 which cover the sub-board sub-assembly 20 from above and below. Shield grounding and signal circuits and cable side contacts 26. The upper and lower shield covers 31 and 32 lock the locking pieces 34 provided on both side walls of the upper shield cover 32 with projections 33 provided on both side walls of the lower shield cover 32, and furthermore, mounting screws ( The nuts (not shown) are fixed to each other by screwing the nuts (not shown). Upper and lower shield cover 3
Reference numerals 1 and 32 are formed by applying conductive nickel plating to the periphery of an insulator portion formed of an insulating resin. Upper and lower shield cover 3
As shown in FIGS. 3 (A) and 3 (B), the housing recesses 35 and 36 respectively house the child board 21 and the module housing 24 of the child board sub-assembly 20 by being combined with each other, as shown in FIGS. And a bolt housing portion 3 that houses a bolt 51 described later by being combined with each other.
7, 38. The bolt receiving portions 37, 38
Partition walls 39 and 40 are provided on both sides of the accommodation recesses 35 and 36, respectively. Also, the upper and lower shield covers 31, 32
A pair of bosses 4 having through holes 41a and 42a through which mounting screws for fixing the upper and lower shield covers 31 and 32 to each other are provided on both sides of the accommodation recesses 35 and 36, respectively.
1, 42 are provided. The boss 41 of the lower shield cover 32 is provided on the boss 41 of the upper shield cover 31.
A projection 41b is formed to protrude into a recess formed around the through hole 42a. Lower shield cover 32
The outer shape of the boss portion 42 has a substantially cylindrical shape corresponding to the substantially semicircular cutouts 27 formed on both sides of the daughter board 21, and the boss portion is used when the daughter board sub-assembly 20 is accommodated in the accommodation recess 36. Part 4
2 enters the notch 27, and the positioning of the daughter board 21 in the front-rear direction is performed. The boss portion 42 and the notch 27 constitute a force transmitting portion that transmits the tensile force of the cable 90 to the cable-side shield cover 30 when the cable 90 connected to the daughter board 21 is pulled backward. Further, the rear ends of the upper and lower shield covers 31 and 32 are combined with each other to form a cable cutout 4 that forms an outlet of the cable 90.
3 and 44 are formed, and cutouts 46 and 47 for the housing are formed at the front end of the housing so that the upper and lower surfaces of the cable side housing 25 are opened to form a housing receiving recess 45 that covers both side surfaces.

FIG. 4 shows the second connector 60, (A) is a plan view, and (B) is a front view. 5A and 5B show a board side contact sub-assembly constituting the second connector 60, wherein FIG. 5A is a plan view and FIG. 5B is a front view. FIG. 6 is a perspective view of a board-side shield cover constituting the second connector 60.

As shown in FIGS. 1 and 4 to 6, the second connector 60 to be fitted with the first connector 10 contacts the cable side contact 26 of the first connector 10 at one end and the parent board at the other end. A board-side contact subassembly 70 having a plurality of board-side contacts 71 connected to the board 91 and an insulating header housing 72 into which the board-side contacts 71 are press-fitted and fixed, and a board-side shield cover 80 covering the periphery of the board-side contacts 71 Is provided.

The header housing 72 of the board-side contact subassembly 70 is an integral member formed by molding an insulating resin, and includes a plurality of contact mounting holes 72.
and a plurality of elastic latches 72c, which are engaged with the board-side shield cover 80 and project upward from both left and right sides and the front side (the lower side in FIG. 5A) of the base 72b. Is provided. Each board-side contact 71 of the board-side contact subassembly 70 has a post 71 a received in the receptacle of the cable-side contact 26 of the first connector 10, and a press-fit portion that is press-fitted and fixed in a contact mounting hole 72 a of the header housing 72. 71b, and a connection portion 72c that is press-fitted to the parent substrate 91.
In the present embodiment, a total of 35 board-side contacts 7
1 is 5 rows and 7 columns corresponding to the cable side contacts 26
Arranged in columns. The board-side contacts 71 are press-fitted and fixed to the insulative header housing 72 locked and fixed to the board-side shield cover 80 by the elastic latch 72c, so that the board-side contacts 71 are reliably insulated.

The board-side shield cover 80 is formed by applying a conductive nickel plating to the periphery of an insulator formed by molding an insulating resin. The board-side shield cover 80 has a substantially rectangular through hole 82 for receiving the board-side contact assembly 70 therein.
And a pair of extensions 83 projecting from the front and rear ends of the base 81 corresponding to the through holes 82. These extension portions 83 are used when the cable side contact 26 of the first connector 10 and the board side contact 71 of the second connector 60 are brought into contact with each other.
Are guided along the upper and lower surfaces of the cable-side housing 25 and the inner surface of the housing receiving recess 45 of the cable-side shield cover 30 to cover the upper and lower surfaces of the cable-side housing 25. For this reason, the shield of the cable side contact 26 in the cable side housing 25 is ensured. or,
On both left and right side surfaces and the front surface of the through hole 82, a step portion 82 a is formed to lock the elastic latch 72 c of the header housing 72. Further, a bolt through hole 84 through which a bolt 52 with a nut to be described later is inserted is formed on both left and right sides of the through hole 82 of the base 81.

The elastic latch 72c of the header housing 72
Is locked to the step portion 82a of the board-side shield cover 80, whereby the board-side contact subassembly 70 is fixed to the board-side shield cover 80, and the second connector 60 is completed. In the second connector 60, the board-side contact 71 is press-fitted and connected to the parent board 91, and a pair of nuts 52 are connected to the bolt through-holes 84 in the board-side shield cover 80 and the bolt through-holes ( (Not shown), and a nut (not shown) is screwed into the threaded portion 52a of the bolt 52 with a nut to be fixedly mounted on the mother board 91. The bolt with nut 52 has a screw portion 52a and a nut portion 52b.

On the other hand, the first connector 10 is connected to the second connector 6
In order to fix the bolts to 0, a pair of bolts 51 shown in FIG. The bolt 51 has a screw portion 51b provided at one end of a shaft 51a, a head portion 51c provided at the other end of the shaft 51a, and an enlarged diameter portion 51d provided between the screw portion 51a and the head portion 51c. The bolts 51 are accommodated in the bolt accommodating recesses 37, 38 of the upper and lower shield covers 31, 32 when the sub-board sub-assembly 20 is accommodated by the upper shield cover 31 and the lower shield cover 32. At the time of this accommodation, the enlarged diameter portion 51d of the bolt 51
Are a pair of wall portions 3 provided on the bolt housing portions 37 and 38.
The bolt 51 is accommodated between 7a and 38a, and the movement of the bolt 51 in the front-rear direction is restricted. The first connector 10 contacts the cable-side contact 26 with the board-side contact 71 of the second connector 60, and screws the screw portion 51 a of the bolt 51 to the nut portion 52 b of the bolt 52 with a nut.
It is attached and fixed to the second connector 60. Thereby, the center conductor and the shield portion of the cable 90 are connected to the parent board 91 via the signal and ground circuit of the daughter board 21, the signal and ground contact of the cable side contact 26, and the signal and ground contact of the board side contact 71. The signal is electrically connected to the ground circuit. The cable-side shield cover 30 is grounded to the ground circuit of the parent board 91 via the bolts 51, the bolts 52 with nuts, and the board-side shield cover 80.

When the cable 90 is pulled after the first connector 10 is attached and fixed to the second connector 60 attached to the mother board 91, the pulling force of the cable 90 is reduced by the first connector 10.
Is transmitted to the cable-side shield cover 30 by the notch 27 of the child substrate 21 and the boss portion 42 of the cable-side shield cover 30, and further transmitted to the parent substrate 91 via the bolts 51 and the bolts 52 with nuts. Therefore, when the cable 90 is pulled, no force is applied to the cable-side contact 26 and the substrate-side contact 71, and the contacts 26 and 71 are not bent or damaged. In the present embodiment, the bolts 52 with nuts for fixing the second connector 60 to the parent board 91 are provided.
The screw portion 51a of the bolt 51 is screwed to the nut portion 52b of the first connector 10. The screw means for fixing the second connector 60 to the mother board 91, and the first connector 10 by screwing to the bolt 51. The screw means for fixing the second connector 60 may be separate from the screw means. In this case, cable 9
The tensile force of 0 is applied to the notch 27 of the daughter board 21 in the first connector 10 and the boss 4 of the cable-side shield cover 30.
2 to the cable-side shield cover 30,
Further, the first connector 1 is screwed to the bolt 51 and the bolt 51.
It is reliably transmitted to the mother board 91 via the screw means for fixing the 0 and the second connector 60, the board side shield cover 80, and the screw means for fixing the second connector 60 to the mother board 91.

[0028]

According to the electrical connector assembly of the first aspect, the child board of the first connector and the cable-side shield cover are provided with the cable pulling force when the cable is pulled. Is formed, and the cable-side shield cover of the first connector and the board-side shield cover of the second connector are screwed and fixed by screw means, so that the cable connected to the daughter board is pulled. Then, the tensile force of the cable is transmitted to the cable-side shield cover via the force transmitting portion, and further securely transmitted to the board-side shield cover and the mother board via the screw means. For this reason, when the cable is pulled, the contact on the cable side and the contact on the substrate side are not applied and the contacts are not bent or damaged.

According to the second aspect of the present invention, the screw means has a bolt attached to the cable-side shield cover of the first connector, and a nut portion to be screwed with the bolt. And the bolts with nuts for attaching and fixing the board-side shield cover of the second connector to the parent board, so that the pulling force of the cable is transmitted via the bolts and the bolts with nuts without passing through the board-side shield cover. Directly to the parent board. or,
It is not necessary to separate the screw means for fixing the second connector to the mother board and the screw means for screwing to the bolt to fix the first connector and the second connector.

Further, according to the electrical connector assembly of the third aspect, the board-side contact of the second connector is insulated and fixed to the board-side shield cover by elastic locking means. , The insulation of the substrate side contact can be surely performed.

In addition, according to the electrical connector assembly of the fourth aspect, the cable-side contact of the first connector is housed in an insulative cable-side housing to form the cable-side connector, The shield cover has a housing accommodating recess that opens upper and lower surfaces of the cable-side housing to cover both side surfaces, and the board-side shield cover of the second connector includes the first connector.
When the cable side contact of the connector and the board side contact of the second connector are brought into contact with each other, upper and lower surfaces of the cable side housing of the first connector and inner side surfaces of the housing receiving recess of the cable side shield cover. A pair of conductive extensions, which are guided along and cover the upper and lower surfaces of the cable-side housing, are formed so as to protrude, so that the insulation and shielding of the cable-side contacts are ensured, and the extension portion has a guiding function. By first
The connector and the second connector can be properly fitted.

[Brief description of the drawings]

FIG. 1 is a perspective view of an electrical connector assembly of the present invention in a state where a first connector and a second connector are separated.

2A and 2B show a sub-board sub-assembly constituting a first connector, wherein FIG. 2A is a plan view, FIG. 2B is a right side view, and FIG. 2C is a rear view.

3A and 3B show a cable-side shield cover constituting a first connector, wherein FIG. 3A is a perspective view of an upper shield cover, and FIG. 3B is a perspective view of a lower shield cover.

4A and 4B show a second connector, wherein FIG. 4A is a plan view and FIG. 4B is a front view.

5A and 5B show a board-side contact subassembly constituting the second connector, wherein FIG. 5A is a plan view and FIG. 5B is a front view.

FIG. 6 is a perspective view of a board-side shield cover constituting a second connector.

FIG. 7 is a front view of the bolt.

FIG. 8 is a partial perspective view of a conventional electrical connector assembly.

[Explanation of symbols]

 10 First connector 21 Substrate 23 Cable side connector 25 Cable side housing 26 Cable side contact 27 Notch (force transmission means) 30 Cable side shield cover 42 Boss (force transmission means) 45 Housing receiving recess 51 Bolt (screw means) 52 Bolt with nut (screw means) 52b Nut part 60 Second connector 71 Board side contact 72 Header housing 72c Elastic latch (elastic locking means) 80 Board side shield cover 83, 84 Extension 90 Cable 91 Parent board

Claims (4)

[Claims] 1. A sub-board connected to a cable, a cable-side contact connected to the sub-board and conducting with the cable, and a conductive cable side covering and shielding around the sub-board and the cable-side contact. A first connector having a shield cover, a board-side contact that is in contact with the cable-side contact and is connected to the parent board, and a conductive member that covers and surrounds the periphery of the board-side contact and is attached and fixed to the parent board. A second connector having a board-side shield cover of the first connector, wherein the sub-board and the cable-side shield cover of the first connector are provided with a cable-side shield when the cable is pulled. A force transmitting portion for transmitting to the cover, wherein the cable-side shield cover of the first connector is provided; And wherein said substrate side shield cover of the second connector, the electrical connector assembly characterized in that it is screwed and fixed by screw means. 2. The method according to claim 1, wherein the screw means includes: a bolt attached to the cable-side shield cover of the first connector;
2. The electrical connector set according to claim 1, further comprising a nut-attached bolt having a nut portion to be screwed with the bolt, for attaching and fixing the board-side shield cover of the second connector to the parent board. Three-dimensional. 3. The board-side contact of the second connector is press-fitted and fixed to an insulating header housing locked and fixed to the board-side shield cover by elastic locking means. Or the electrical connector assembly according to 2. 4. A sub-board connected to the cable, a cable-side contact connected to the sub-board and conducting with the cable, and a conductive cable side covering and shielding around the sub-board and the cable-side contact. A first connector having a shield cover, a board-side contact that is in contact with the cable-side contact and is connected to the parent board, and a conductive member that covers and surrounds the periphery of the board-side contact and is attached and fixed to the parent board. A second connector having a board-side shield cover of the first connector, wherein the cable-side contact of the first connector is housed in an insulative cable-side housing to form a cable-side connector, and the cable-side shield cover comprises: A housing receiving recess that opens the upper and lower surfaces of the cable side housing and covers both side surfaces. A portion, wherein the board-side shield cover of the second connector includes the cable-side contact of the first connector and the second connector.
When contacting the board side contact of the connector,
A pair of conductive extensions guided along upper and lower surfaces of the cable-side housing of the first connector and inner surfaces of the housing receiving recesses of the cable-side shield cover, and covering upper and lower surfaces of the cable-side housing, An electrical connector assembly having a protrusion.