JP2893791B2 - connector - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-density multi-terminal connector used for a computer, an electronic exchange, a transmission device, and the like, and particularly to a connector having one end connected to a printed board.

[Conventional technology]

FIG. 4 is a perspective view of a conventional connector.
Conventionally, this type of connector has a housing 5a as a relay terminal block attached to a printed board 8, as shown in FIG.
And a long L-shaped terminal 15 and a short L-shaped terminal 16 which pass through a number of plug insertion holes on one surface of the housing 5a and protrude in parallel arrangement from the opposite surface.

The ends of the short L-shaped terminal 16 and the long L-shaped terminal 15 are respectively connected to the through holes 17 of the printed board 8.
And was fixed by soldering. Further, when connecting the printed board 5 to another circuit device, a male plug connected to the circuit device is inserted into this connector to perform connection.

[Problems to be solved by the invention]

However, in the conventional connector described above, the L
Since the shaped terminals are buried in a plurality of parallel arrangements, the floating capacitance increases as the distance between adjacent terminals decreases as the number of terminals increases. Also, in order to cope with this high density, when the terminal width is reduced, the self-inductance increases, and there is a disadvantage that crosstalk and ground noise are easily generated. Further, impedance matching with a printed board (for example, about 50Ω) ) Cannot be obtained. On the other hand, this connector has a drawback that the number of terminals is large and the multi-stage parallel arrangement is short-circuited, or a large number of assembly steps are required for repairing poor connection.

SUMMARY OF THE INVENTION An object of the present invention is to provide a connector that solves the above drawbacks, is easy to assemble, does not generate crosstalk and noise, and can easily achieve impedance matching.

[Means for solving the problem]

1. A first connector according to the present invention comprises: a connector terminal having a male terminal at one end and a female terminal at the other end; a housing having a plurality of holes into which the female terminals of the connector terminal are inserted; A relay terminal plate portion in which the male terminal 2 of the connector terminal is inserted, and a through hole having an inner surface provided with a conductive film is formed corresponding to the hole, and both side surfaces of the relay terminal plate portion It has a mounting portion that extends further and holds the side surface of the printed board, and an extension portion that is located between the mounting portions and extends outward from one surface of the relay terminal plate portion. An extension terminal portion in which a via hole electrically connected through a film is formed, and a portion protruding from an end of the extension portion and in contact with a metal pad of the printed board, and And a plurality of terminals electrically conductive portion to be connected to the via hole to the minute are formed.

2. In the second connector according to the present invention, in the first connector, the via holes are formed in a plurality of rows in a staggered manner in the extension portion, and a plurality of terminals and the via holes in each row are formed. Are alternately connected by the conductive portion.

〔Example〕

 Next, the present invention will be described with reference to the drawings.

1 and 2 are partial sectional perspective views showing a front side and a rear side of a connector according to an embodiment of the present invention, respectively.
As shown in FIGS. 1 and 2, the connector has a connector terminal 4 having a male terminal 2 at one end and a female terminal 3 at the other end.
And a housing 5 having a number of holes into which the female terminals 3 of the connector terminals 4 are inserted, and mounting the housing 5 and inserting the male terminals 2 of the connector terminals 4 and applying a conductive film to the inner surface. A through-hole 6 is formed at the relay terminal plate 11a corresponding to the hole, and extends from both sides of the relay terminal plate 11a.
A mounting portion 11b for holding the side surface of the relay terminal plate, an extension portion located between the attachment portion 11b and extending outward from one surface of the relay terminal plate portion 11a, and the through hole 6 and the conductive film 13 Via holes electrically connected via
An extension terminal portion 10 where the extension 12 is formed, and a portion protruding from the end of the extension portion and in contact with the metal pad 9 of the printed board 8, and a conductive portion connected to the via hole 12 is formed in this portion. Terminals 1a and 1b
It is composed of

FIGS. 3 (a) and 3 (b) are partial cross-sectional views showing a state in which the extension terminal portion of FIG. 2 is cut along each terminal tip. Also, as shown in FIGS. 2, 3 (a) and 3 (b), the via holes 12 formed in the extension terminal portion 10 are staggered in the extension portion of the extension terminal portion 10. The terminal tip portions 1a and 1b are formed side by side in two rows,
The via holes 12 in each row are alternately connected by the conductive portion 7. That is, the terminal tip portions 1a and 1b are in contact with the metal pads 9 of the printed board 8 and are electrically connected to the conductive portions 7 extending from the via holes 12.

As described above, the connector of the present invention does not provide a conventional independent L-shaped terminal, but provides an extension terminal portion for integrating each terminal, forms a slit at the distal end portion, and forms a predetermined space between each terminal. By forming a conductive portion through via holes formed in a zigzag pattern in a conductive film connected to the connector terminal in a portion of each terminal connected to the terminal of the printed board, There is an advantage that a required interval dimension is secured between the terminals and this interval can be maintained without causing deformation.

Also, when assembling, unlike the conventional case, there is an advantage that it is not necessary to insert the terminals one by one into the through-hole into the printed board, and the integrated terminal group can be mounted only once.
Further, the connection between the terminal and the through hole or between the via hole and the through hole can be realized by forming a conductive film or a conductive portion by a known printing technique. This has the advantage that not only the man-hour for assembling the connector is reduced, but also the processing cost is reduced.

〔The invention's effect〕

As described above, according to the present invention, only a terminal portion that comes into contact with a pad of a printed board is separated at a predetermined interval, an extension terminal portion that integrates other portions is provided, and one end of a connector terminal is inserted into a housing. By forming a conductive portion for connecting the conductive film of the hole and each terminal to the extension terminal portion by using a printing technique, predetermined widths of the terminals and predetermined dimensions between the terminals can be secured, so that crosstalk and noise can be prevented. This is advantageous in that an inexpensive connector that can easily obtain impedance matching can be obtained.

[Brief description of the drawings]

1 and 2 are partial cross-sectional perspective views showing a front side and a rear side, respectively, of a connector according to an embodiment of the present invention, and FIGS. 3 (a) and (b) show the extension terminal portions in FIG. 2, respectively. FIG. 4 is a partial cross-sectional view showing a state of being cut along the terminal tip of FIG.
FIG. 1 is a perspective view of a connector showing an example of the related art. 1a, 1b: Terminal end, 2: Male terminal, 3: Female terminal, 4: Connector terminal, 5, 5a: Housing, 6:
... Through hole, 7 ... Conductive part, 8 ... Printed board, 9
... metal pad, 10 ... extension terminal part, 11a ... relay terminal plate part, 11b ... mounting part, 12 ... via hole, 13 ...
Conductive film.

Claims (2)

(57) [Claims] 1. A connector terminal having a male terminal at one end and a female terminal at the other end, a housing having a number of holes into which the female terminals of the connector terminal are inserted, and mounting the housing and the connector terminal. A male terminal 2 is inserted, and a through hole having an inner surface provided with a conductive film is formed in a relay terminal plate portion corresponding to the hole. A mounting portion for holding the side surface, and an extension portion located between the attachment portion and extending outward from one surface of the relay terminal plate portion, and electrically connected to the extension portion via the through hole and the conductive film. An extension terminal portion formed with a via hole connected to the extension portion; and a portion protruding from an end of the extension portion and in contact with a metal pad of the printed board. Connector characterized in that it comprises a plurality of terminals electrically conductive portion for connection is formed with. 2. The method according to claim 1, wherein the via holes are formed in a plurality of rows in a staggered manner in the extension portion, and a plurality of the terminals and the via holes in each row are alternately connected by the conductive portion. The connector according to claim 1.