JPH0454708Y2 - - Google Patents

Description

[Detailed description of the invention] [Summary] This is a high-density connector mechanism that is mounted in a matrix on a printed circuit board.In particular, regarding the latch of the connector itself and the shield connection of the cable, a one-touch method is provided for each connector mounted in the matrix. In order to optimize the shield connection of the cable, in matrix mounting of the connector, a large number of pins on the printed board side are divided into a grid pattern by providing metal guides that connect to the ground side, and the guides are used to divide the many pins into grids. The plug-in connector has a metal cover around the body, clamps the cable seedling to the cover, and
A latch means having a metal gate-shaped latch lever is provided between the main body of the connector and the cover so that it can be latched or released from the guide with a single touch.

[Industrial application field]

The present invention relates to a high-density connector assembly mounted in a matrix on a printed circuit board, and in particular relates to the latch of the connector itself and the shield connection of the cable.

In recent years, the mounting of connectors on printed circuit boards has tended to accommodate the increase in the number of pins due to higher density, and the trend has been to use a matrix mounting method in which pins are divided into blocks of a predetermined number and multiple connectors are arranged vertically and horizontally. It is in. In such a mounting method, the number of connectors increases, and since it is necessary to increase the mounting density in a small space and the connectors are placed close to each other, it is necessary to devise a latch means or the like.

[Conventional technology]

Conventionally, methods of latching the connectors mounted in a matrix have been considered, such as screwing the individual connectors or latching them together in each row. On the other hand, the cable connected to each connector has a ground shield, and this shield connection is often made by plug-in connection using dedicated contacts and pins.

[The problem that the idea aims to solve]

However, the conventional latching method described above has disadvantages such as making it difficult to insert and remove the connector and making the latching means larger. Therefore, it is desirable to make effective use of the narrow space of matrix mounting and provide a simple latch means for each connector. Furthermore, if a plug-in connection is used for cable shield connection, the number of pins will increase, and the pattern on the printed board side will also increase. Here, it is best to connect the cable shield directly to the frame of the equipment housing and ground it, and in this case, it is preferable to also ground the connector itself to prevent the generation of static electricity when workers touch the connector during insertion and removal. .

The present invention was created with these points in mind, and it provides a high-density connector mechanism that can optimize cable shield connection by providing one-touch latching means for each connector mounted in a matrix. The purpose is to provide.

[Means to solve the problem]

In order to achieve the above object, the high-density connector mechanism of the present invention is provided with a grid-shaped guide on the printed board side to block a large number of pins, and this guide is used as a guide when inserting and removing the connector, a latching means, a shield circuit, etc. It is used for multiple purposes.

Therefore, a gate-shaped latch lever as a latch means is installed on the connector using the space between the main body and the surrounding cover, so that the connector can be latched or released with one touch on the printed board side guide.

Further, the shield of the cable is clamped to the cover of the connector, and the cover is mechanically connected to the frame of the device housing via a latch lever and a guide to form a shield circuit.

[Effect]

Based on the above structure, a plurality of connectors mounted in a matrix can be individually latched or released with a single touch by the latching lever of the latching means. Also, the cable shield is grounded directly to the frame together with the connector itself and the guide.

Thus, the present invention makes it possible to miniaturize and simplify the latching means of a matrix-mounted connector, and to easily and securely shield the cable and connector.

〔Example〕

Hereinafter, embodiments of the present invention will be described based on the drawings.

In FIGS. 1a and 1b, reference numeral 1 is a motherboard, 2 is a printed board on which is mounted an LSI 10 mounted on one side of the motherboard 1 by a connector 8, and the printed board 2 of the motherboard 1 is located on the side opposite to the mounting side. The ground frame 3 is installed in parallel. The motherboard 1 is attached to a device housing frame 6 using a mounting frame 4 and an L-shaped metal fitting 5, and a ground frame 3 is attached to this frame 6 by a coupling means 7 to form an electrical shield circuit.

Further, a large number of pins 10 corresponding to the LSI 10 are erected at a predetermined portion of the motherboard 1 on the ground frame 3 side, and the pins 10 are divided into blocks of a predetermined number by a lattice-shaped guide 11. The guide 11 is formed by metal die casting, is taller than the pin 10, and is attached to the mounting frame 4 while floating above the printed board 1, and the guide 11 itself is also grounded. In addition, a plurality of connectors 20 are connected to the matrix-shaped connection portion 12 partitioned by the guide 11 and connected to the opening 1 of the ground frame 3.
It is designed to be connected through 3.

Referring to the connector 20 in FIGS. 2 and 3a and 3b, a connector main body 21 having a contact that plugs into the pin 10 has a rectangular cylinder shape and is formed to be loosely fit inside the guide 11.
A cover 22 is attached to the periphery of the main body 21 at a position shifted rearward from the tip of the main body 21 according to the height of the guide 11 and thereafter. The cover 22 is made of metal, and the shield 2 of the cable 23 is
A portion 3a is fixed by a clamp 24 and a screw 25 to hold the cable 23 and connect the shield 23a to the cover 22. Further, above the cover 22 there is an opening 22c having a stepped stopper 22b, and the latch means 30 is attached to this opening 22c.

The latch means 30 has a gate-shaped metal latch lever 31 as shown in FIG. This latch lever 31 has tapered hooks 31b bent outward at the lower ends of the left and right legs 31a, and a pin hole 31 in the middle.
c is bright. Further, the leg 31a has a contact surface 31d above it, a handle 31e at its upper end, and a spring 31f protruding from the middle. Therefore, the latch lever 31 exposes the handle 31e to the opening 22c, and puts the contact surface 31d against the stopper 22d,
The legs 31a are extended downward within the left and right grooves 21a of the main body 21, the hooks 31b are taken out of the cover 22, and the hooks 31b are inserted and installed in the cover 22. In addition, the leg 31a
The pin hole 31c of the spring 31f is fitted into a pin 22d on the cover side and is rotatably supported, and the free end of the spring 31f is engaged with the protrusion 22e of the cover 22, and the latch lever 31 is received by the stopper 22b and is supported by the leg 31a.
The spring force is applied in the direction to keep it vertical.

Furthermore, the latch means 30 has notches 32 on the left and right sides 11a of the guide 11, as well as tapered hook portions 33.
has. Here, since the hook portion 33 is used by two adjacent hooks 31b, the amount of protrusion of the hook 31b is less than half the width of the hook portion 33.

With the above configuration, the connector 20 is connected as shown from the left side a to the right side d in FIG. That is, before connection, the latch lever 3 of the latch means 30
1 hits the stopper 22b, and the hook 31b is in a vertical state together with the leg 31a. When the connector body 21 is inserted into the guide 11 from this state,
Plug-in connection starts, and the hook part 33 of the guide 11
The hook 31b contacts in a tapered state. Therefore,
When the connector 20 is pushed further, the latch lever 31
The hook 31b slides down on the hook portion 33, and the lever 31 moves backward while rotating. When the plug-in connection between the main body 21 and the pin 10 is completed, the cover 22 is inserted into the guide 1 as shown in d and e.
1, the hook 31b returns to the vertical state and engages the hook portion 33, and thus
0 is integrally latched to the guide 11 on both the left and right sides.

On the other hand, when the connector 20 is in the latched state, the shield 23a of the cable 23 is attached to the metal cover 2.
2. Connected to the ground frame 3 side via the latch lever 31 and guide 11. Therefore, together with the shield 23a of the cable 23, the cover 22 of the connector 20, etc., and the guide 11 are directly grounded and electrically shielded.

Next, when pulling out the connector 20, the latch lever 31 is rotated by hooking a finger on the handle 31e to release the lock between the hook 31b and the hook portion 33. By pulling the connector 20 in this state, the main body 21 is removed from the pin 10. In this case, the handle 31e is attached to the end surface 22f of the cable attachment portion 22a of the cover 22.
When the latch lever 31
is kept in a rotating state.

[Effect of idea]

As described above, according to the present invention, a one-touch type latching means is attached to each connector in the connector, so that the connection of the connector is ensured and the insertion and removal work is also facilitated.

The latch means uses a guide on the printed board side,
Since it is constructed using the space between the main body of the connector and the cover, it is small and strong, and has good assemblability.

Since the latch lever is gate-shaped and latches the connector on both the left and right sides, the latching effect is large.

The latching means determines the orientation of the connector and prevents incorrect polarity.

Since the cable shield is grounded by a connector cover or the like, the number of pins and the pattern on the printed board side can be reduced.

Since the connector cover, latch lever, and guide form a shield circuit and are grounded together, generation of static electricity can be prevented.

[Brief explanation of the drawing]

Figures 1a and 1b are side views showing an embodiment of the present invention;
2 is a perspective view of the main parts, FIGS. 3a and 3b are views showing the cover side of the connector, FIG. 4 is a perspective view of the latch lever, and FIGS. 5a to 5e are views showing the connector connected state. In the figure, 1 is a motherboard, 2 is a printed board, 10 is a pin, 11 is a guide, 12 is a connection part,
20 is a connector, 21 is a main body, 22 is a cover, 2
3 is a cable, 23a is a shield, 30 is a latch means, and 31 is a latch lever.

Claims (1)

[Claim for Utility Model Registration] In matrix mounting of the connector, a large number of pins 10 on the printed board 1 side are partitioned into a grid pattern by providing metal guides 11 connected to the ground side, and partitioned by the guides 11. The connector 20 that is plug-in connected to each of the connecting parts 12 has a metal cover 22 around the main body 21, a shield 23a of the cable 23 is clamped to the cover 22, and a shield 23a of the cable 23 is clamped between the main body 21 of the connector 20 and the cover 22. A high-density connector mechanism in which a latch means 30 having a metal gate-shaped latch lever 31 can be latched or released from a guide 11 with one touch.