JPH0711412Y2 - Printed circuit board connector mounting structure - Google Patents

Description

[Detailed Description of the Invention] [Overview] This relates to the mounting structure of a printed board connector to be mounted on a printed board, and particularly to the electromagnetic shield structure between right-angle terminals, which is less likely to cause crosstalk between terminals. For the purpose of providing a mounting structure of a board connector, in a printed board device in which a connector in which right-angle terminals are arranged is mounted on a printed board, a conductor main body board,
A conductor comb plate arranged on the side surface of the conductor body plate at an equal pitch, and an end face of the conductor body plate or an end face of the conductor comb plate,
The conductor comb tooth plates are respectively inserted between the right angle terminals by using a shield composed of arranged conductor protrusions, and the conductor protrusions are inserted and soldered in a grounded through hole, The shield plate is mounted on the printed board.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printed board connector mounting structure to be mounted on a printed board, and more particularly to an electromagnetic shielding structure between right angle terminals.

With the progress of semiconductor integration technology, electronic devices are becoming smaller and higher in density, and circuit parts such as semiconductor parts are densely mounted on printed circuit boards mounted on electronic devices. The amount of electric signals sent and received is increasing.

On the other hand, for the above-mentioned printed board, by using a box-shaped shelf in which the front surface is open and the backboard printed board is attached to the bottom, the printed board connector is inserted into the connector arranged on the backboard printed board. , Arranged and housed on the shelf.

[Conventional technology]

As a connector to be mounted on a printed board, as shown in FIG. 4, a printed board connector 5 in which a large number of right angle terminals 7 are led out from a side wall of a rectangular parallelepiped housing 6 is provided.
Is widely used.

In the printed board connector 5, the tip of the right-angled terminal 7 is inserted into the corresponding through hole 2 and soldered, with the bottom surface of the housing 6 in contact with the surface of the front side edge of the printed board 1. It is mounted on the board 1.

[Problems to be solved by the device]

With the increase in the amount of exchange of electrical signals between printed boards in recent years,
The printed board connector 5 is required to have a large number of right angle terminals 7 arranged in close proximity to each other.

On the other hand, with the recent increase in the speed of electric signals, high-speed signals are being transmitted to the right angle terminal 7.

Therefore, in the conventional mounting structure of the printed board connector, crosstalk may occur between the right angle terminals of the printed board connector due to the proximity of the terminals and the speeding up of the electric signal, and the printed board device may malfunction. there were.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a mounting structure for a printed circuit board connector in which there is little risk of crosstalk between terminals.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the present invention provides a printed board device configured by mounting a printed board connector 5 having a large number of right angle terminals 7 arranged on a printed board 1 as shown in FIG. Elongated conductor body plate 11
And a large number of conductor comb tooth plates 15 arranged on the side surface of the conductor body plate 11 at an equal pitch, and a conductor protrusion 12 provided on the end surface of the conductor body plate 11.
The shield plate 10 consisting of is used together with the printed board connector 5 and mounted on the printed board 1.

Between the right angle terminals 7 of the printed board connector 5,
With the conductor comb tooth plates 15 of the shield plate 10 inserted, the corresponding conductor protrusions 12 are inserted and soldered into the through holes 2 connected to the ground pattern 3 to mount the shield body 10 on the printed board 1. The configuration.

[Operation] As described above, the conductor comb tooth plates 15 are inserted between the right-angle terminals 7 and the conductor comb tooth plates 15 are inserted into the conductor protrusions 12.
It is grounded to the ground pattern 3 of the printed board 1 via.

Therefore, each right-angled terminal 7 is electromagnetically shielded, and there is little risk of crosstalk occurring between adjacent right-angled terminals.

〔Example〕

Hereinafter, the present invention will be described in detail with reference to the drawings. The same reference numerals denote the same objects throughout the drawings.

FIG. 1 is a configuration diagram of an embodiment of the present invention, (a) is a perspective view showing a mounted state, (b) is a partially broken perspective view, and FIG. 2 is a part of another embodiment of the present invention. FIG. 3 is a partially broken perspective view of still another embodiment of the present invention.

In FIG. 1 (a), 10 is a shield mounted on the printed board 1 in parallel with the printed board connector 5 mounted on the front side edge of the printed board 1.

The shield 10 has an elongated rectangular plate-shaped conductor body plate 11 having a length substantially equal to the length of the housing 6 of the printed board connector 5 and a width substantially equal to the height of the housing 6, and the conductor body plate 11.
It is composed of a large number of conductor comb tooth plates 15 arranged on the side surface of the conductor at equal pitches (for example, a pitch of 2.54 mm) and conductor protrusions 12 provided on the end face of the conductor body plate 11.

Then, the shielding plate 10 is placed sideways on the printed board 1, and the conductor comb teeth plates 15 are inserted between the right-angle terminals 7 of the printed board connector 5, respectively. The conductor protrusions 12 and the through holes 2 are soldered to the through holes 2 connected to each other, and the shield 10 is mounted on the printed board 1.

As shown in detail in FIG. 1 (b), the shield 10 is formed by die-casting aluminum or the like to form a conductor body plate 11,
The conductor comb tooth plate 15 and the conductor protrusion 12 are connected to each other to form a metal body 16-1.
Is provided as a shield.

Then, the conductor body plate 11 and the conductor comb plate 15 of the metal body 16-1.
The outer peripheral surface of the insulating coating 16-2
It is covered with.

As described above, the shield 10 includes the insulating film 16-2 and the metal body 16-1.
Therefore, even when the conductor comb tooth plate 15 or the like may come into contact with the right angle terminal 7 when it is mounted on the printed board 1, it does not become conductive.

As described above, the shield 10 is mounted on the printed board 1 along with the printed board connector 5, and the conductor comb tooth plate 15 is inserted between the right-angle terminals 7 to form the conductor comb tooth plate.
15 is grounded to the ground pattern 3 of the printed board 1 via the conductor body plate 11 and the conductor protrusion 12.

Therefore, the right-angled terminals 7 of the printed board connector 5 are electromagnetically shielded from each other, and crosstalk is less likely to occur.

The shield 10A shown in FIG. 2 is formed by molding a synthetic resin to provide an insulator 17-1 in which a body plate, a comb plate and a protrusion are connected, and the entire surface of the insulator 17-1 is metal-plated. The conductor layer 17
-2 is formed to form the conductor main body plate 11, the conductor comb tooth plate 15, and the conductor protrusion 12.

The conductor layers of the conductor body plate 11 and the conductor comb tooth plate 15
An insulating coating 17-3 is formed by applying a synthetic resin on the 17-2.
To form a shield.

As described above, the shield 10A has advantages that it is lighter in weight and lower in cost than one in which the base is made of a metal body.

The shield 10 having the rectangular plate-shaped conductor main body plate 11 as described above, the shield 10A, a conductor protrusion is provided on the tip side edge of the conductor comb tooth plate 15, and the conductor main body plate 11 is directed downward. It can also be mounted on the printed board 1.

In the shield 10B shown in FIG. 3, the conductor body plate 11 is formed into an angled shape in a side view, and is composed of an upper plate member 11a and a side plate member 11b, and a conductor comb tooth plate 15 and a conductor protrusion 12 are further provided. It is a shield.

By using the shield 10B having such a structure, the rear side and the upper side of the right angle terminal 7 are shielded,
The effect of preventing crosstalk is further improved.

[Effects of the Invention] As described above, the present invention has a mounting structure in which a conductor comb tooth plate is inserted between the terminals of a connector and a shield is provided on the printed board connector. When applied to a printed circuit board connector in which is arranged, there is little possibility of crosstalk between terminals, which is an excellent effect in practical use.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an embodiment of the present invention, (a) is a perspective view showing a mounted state, (b) is a partially cutaway perspective view, and FIG. 2 is a partially cutaway view of another embodiment of the present invention. FIG. 3 is a perspective view, FIG. 3 is a partially cutaway perspective view of still another embodiment of the present invention, and FIG. 4 is a mounting view of a printed board connector. In the figure, 1 is a printed board, 2 is a through hole, 3 is a ground pattern, 5 is a printed board connector, 6 is a housing, 7 is a right angle terminal, 10, 10A and 10B are shields, 11 is a conductor main board, Reference numeral 12 is a conductor protrusion, 15 is a conductor comb tooth plate, 16-1 is a metal body, 16-2 is an insulating coating, 17-1 is an insulating material, 17-2 is a conductor layer, and 17-3 is an insulating coating. .

Claims (1)

[Scope of utility model registration request] 1. A printed circuit board device in which a connector having right angle terminals (7) arrayed is mounted on a printed circuit board (1), a conductor body plate (11), a side surface of the conductor body plate (11), etc. Conductor comb tooth plates (15) arranged at a pitch and the conductor body plate (1)
A shield (10) composed of conductor protrusions (12) arranged on the end face of 1) or the end face of the conductor comb tooth plate (15) is used, and the conductor comb is provided between the right angle terminals (7). Tooth plate (15)
Are respectively inserted, the conductor protrusions (12) are inserted into the through holes (2) grounded and soldered, and the shield (10) is mounted on the printed board (1). The printed board connector mounting structure.