JPH0574529A - External connecting terminal device for printed wiring board - Google Patents

Abstract

PURPOSE:To provide an external connecting terminal device capable of freely selectively connecting various cables to a printed wiring board according to use. CONSTITUTION:A terminal base 2 with screws and the socket 4a of a dedicated connector 4 are fitted to a printed wiring board 1 in parallel. Lead pins 2b extracted from terminals of the terminal base 2 with screws and lead pins 4c extracted from the socket 4a are connected to each other by a conductor pattern 1a formed on the printed wiring board 1, and the terminal base 2 with screws and the dedicated connector 4 are used in different ways according to the type and use of a cable 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a signal input / output external connection terminal device mounted on a printed wiring board.

[0002]

2. Description of the Related Art First, FIGS. 2 and 3 show a conventional external connection terminal device for a printed wiring board. In FIG. 2, 1 is a printed wiring board, 2 is a terminal block, and 3 is a cable. Here, the terminal block 2 is a terminal block with a screw provided with a terminal screw 2a for each terminal board, and the printed wiring board 1
The lead pins 2b, which are mounted on the terminal board and led out from the respective terminal boards, are soldered and joined to the conductor pattern of the printed wiring board 1. Each core wire of the cable 3 is distributed to each terminal plate of the terminal block 2 and screwed and coupled.

FIG. 3 shows an example in which the printed wiring board 1 and the cable 3 are connected using a dedicated connector 4.
In addition, 4a is a socket of the dedicated connector 4, and 4b is a plug. That is, the socket 4a of the dedicated connector 4 is mounted on the printed wiring board 1, and the lead pin 4c pulled out from the socket 4a is soldered and joined to the conductor pattern of the printed wiring board 1. On the other hand, a plug 4b of a dedicated connector 4 is connected to the cable 3, and the cable 3 is connected by inserting the plug 4b into the socket 4a.

[0004]

By the way, each of the above-mentioned cable connection methods has advantages and disadvantages, and there are the following restrictions in terms of use. That is, with the screw terminal block 2 shown in FIG. 2, the type of the cable 3 connected to the terminal block 2 is not limited, and a special cable such as a twisted pair cable can be connected as the cable 3. However, connecting the cable 3 to the terminal block 1 requires a screw operation, which is troublesome, and repeated attachment / detachment may damage the core wire of the cable 3 to cause disconnection or disconnection. Therefore, it is not suitable for the purpose of frequently attaching and detaching the cable 3 to and from the printed wiring board 1.

On the other hand, in the connection system of FIG. 3 which employs the dedicated connector 4, the connector 4 can be attached / detached by one-touch operation, so that it is suitable for applications where the cable 3 is frequently attached / detached, but it is connected to the dedicated connector 4. The cable 3 to be used is limited to a dedicated cable whose thickness, number of core wires and the like match the plug 4b. The present invention has been made in view of the above points, and an object thereof is to provide an external connection terminal device capable of freely selecting and connecting various cables according to the purpose to a printed wiring board. And

[0006]

According to the present invention, a screw terminal block and a socket for a dedicated connector are mounted side by side on a printed wiring board, and each terminal of the terminal block and a lead pin pulled out from the socket are arranged according to the present invention. Among them, the corresponding lead pins are interconnected by a conductor pattern formed on a printed wiring board.

[0007]

With the above construction, when connecting the cable to the printed wiring board frequently, it is necessary to attach / detach the cable, select the dedicated connector, and if a special cable such as twisted pair cable is used, the screw is attached. The terminal block can be selected and the cable can be connected to the printed wiring board, which allows a wide variety of cables to be used according to the application. Also, as a special use,
If necessary, it is possible to use both the terminal block with screws and the dedicated co-connector, and connect and use two cables at the same time.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. In the figure, the same parts corresponding to those in FIGS. 2 and 3 are designated by the same reference numerals. That is, in the embodiment of FIG. 1, a terminal block 2 with a screw and a socket 4a of a dedicated connector 4 are mounted side by side on a printed wiring board 1 and are pulled out from each terminal plate of the terminal block 2. Lead pin 2a
And the lead pin 4c pulled out from the socket 4a,
Corresponding lead pins are interconnected by a conductor pattern 1a formed on the printed wiring board 1.

With such a structure, when a dedicated cable is used, the dedicated connector 4 is selected and the plug 4b connected to the cable 3 is inserted into the socket 4a for connection. Also,
When using a special cable such as a twisted pair cable, the screwed terminal block 2 is selected and the cable 3 is connected to the terminal block 2.

[0010]

As described above, in the external connection terminal device of the present invention, the terminal block with the screw and the socket of the special connector are mounted side by side on the printed wiring board, and the terminals and the socket of the terminal block are pulled out. Among the lead pins, the corresponding lead pins are interconnected by the conductor pattern formed on the printed wiring board, so that you can use various cables according to the application without being restricted by the type of cable used. Therefore, versatility can be expanded.

[Brief description of drawings]

FIG. 1 is a configuration perspective view of an embodiment of the present invention.

FIG. 2 is a structural diagram of a conventional external connection terminal device using a screw terminal block.

FIG. 3 is a structural diagram of a conventional external connection terminal device using a dedicated connector.

[Explanation of symbols]

 1 printed wiring board 2 terminal block with screw 2a terminal screw 2b lead pin 3 cable 4 dedicated connector 4a socket 4b plug 4c lead pin

Claims (1)

[Claims] 1. A printed wiring board on which a terminal block with a screw and a socket of a dedicated connector are mounted side by side, and among the lead pins drawn out from the terminals and the socket, printed wiring is provided between corresponding lead pins. An external connection terminal device for a printed wiring board, characterized in that they are interconnected by a conductor pattern formed on the board.