JPS5927115Y2 - Electronic device with terminal block - Google Patents

Description

[Detailed description of the invention] This invention relates to electronic equipment with a terminal block that houses electronic equipment mainly composed of printed circuit boards, such as process input/output devices for sequence controllers.In particular, the terminal block for external equipment is attached to the case, making it easy to use. The present invention relates to an electronic device.

Conventionally, there has been a device of this type shown in side views in FIGS. 1 and 2.

In Figure 1, 1 is a case, 2 is a motherboard consisting of a printed circuit board arranged on the back side of this case and connects the input/output crab unit, and 3 is a sub-board consisting of a printed circuit board arranged orthogonally to the front surface of this motherboard. ,
4 is a mounting screw for attaching this sub-board, 5 is a terminal block attached to the lower part of the motherboard 2, and 6 is an external cable connected to this terminal block.

The device shown in Figure 1 is configured as described above, and the terminal block is installed at the rear, so the wiring of the external cable 6 to the terminal block 5 must be done after removing the sub-board 3 and mounting screws 4. ing.

Figure 2 shows a device that has improved on these points. In the figure, 1 to 6 are the same or equivalent to those in Figure 1, but the safboard 3 is attached to the front of the case 1 with mounting screws. The terminal block 5 is attached to the back side of the drawing board 7 which is attached by the terminal block 4, and the terminal block 5 is attached to the front side of the face plate 7.

8 is a mounting screw for mounting the motherboard 2.

The device shown in FIG. 2 is constructed as described above, and the external cable 6
The wiring to the terminal block 5 can be directly wired to the terminal block 5 mounted on the face plate 2, but when removing the sub-board 3, it is necessary to remove the external cables wired to the terminal block 5.

As mentioned above, in the case of the conventional electronic device shown in Fig. 1, the terminal block 5 is located at the rear and there is not enough wiring space, so it is difficult to directly wire the external cable 6, and the wiring In order to do so, it was necessary to remove and attach the sub-board 3.

Also, when inspecting a printed circuit board, it is required to remove and install it independently without causing any problems, but in the case of Fig. 2, if the external cable 6 wired to the terminal block 5 is not removed, the sub-board 3 must be removed and installed. The disadvantage was that it could not be removed or installed.

This idea was made in order to eliminate the drawbacks of the conventional ones as mentioned above, and it allows the wiring of external cables from external equipment to the terminal block directly without any other problems, and also makes it easier to inspect the printed circuit board. It is an object of the present invention to provide an electronic equipment device with a terminal block that can be easily removed and installed without causing any trouble.

An embodiment of this invention will be described below with reference to the side view of FIG.

In FIG. 3, 1 to 8 are the same as or equivalent to those in FIGS. 1 and 2;
The terminal block 5 is attached to the lower front of the case 1 adjacent to the face plate 7 in a position where the external cable 6 can be directly wired, and the motherboard 2 is fixed to the back inside the case 1 with mounting screws 8. ing.

9 is a conductor provided on the back of the terminal block 5 and electrically connected to the external cable 6; 10 is a flexible cable that connects this conductor to the motherboard 2; 11 is a terminal block provided adjacent to the terminal block 5; This is a symbol paper used as a symbol display section.

In the electronic equipment device with a terminal block configured as described above, the sub-board 3 mounted on the face plate 7 can be independently removed and mounted without any hindrance by loosening the mounting screws 4.

Also, since the terminal block 5 is provided on the front of the case 1,
Wiring the external cable 6 from the external device to the terminal block 5 of this device can be done directly and easily while checking the symbol paper 11 from the front of the case 1, eliminating the inconvenience of removing and installing the printed circuit board as in the past. It is possible to eliminate the problem.

Furthermore, since the terminal block 5 and the motherboard 2 are connected by a flexible cable, the terminal block 5 can be mounted at any position by taking advantage of the characteristics of the flexible cable.

In the above embodiments, the terminal block 5 is arranged at the lower front, but it is not limited to the lower part, and may be arranged above or at the side.

Further, the front area is not limited to the frontmost part of the case 1, but may be a slightly recessed position as shown in FIG. 3 as long as it is within the range where direct wiring can be made from the outside.

This invention can be applied not only to process input/output devices of sequence controllers but also to electronic equipment using printed circuit boards.

As described above, this invention allows the terminal block to be installed at the front of the case, making it possible to inspect the printed circuit board mounted on the face plate without removing external cables. This has the advantage that wiring can also be done directly from outside.

[Brief explanation of the drawing]

1 and 2 are side views of a conventional device, and FIG. 3 is a side view showing an embodiment of this invention. In the figure, 1 is a case, 2 is a motherboard, 3 is a sub-board, 5 is a terminal block, 6 is an external cable, 7 is a face plate, 10
indicates a flexible cable. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] A case, a face plate attached to the front of the case, a motherboard consisting of a printed circuit board arranged on the back side of the case and connecting the input and output crab units, and a motherboard attached to the face plate to be arranged at the front of the motherboard. A sub-board consisting of a printed circuit board, a single terminal block for connecting an external cable provided on the front of the case adjacent to the face plate, a flexible cable connecting this terminal block to the motherboard, and a flexible cable adjacent to the terminal block. An electronic equipment device with a terminal block, characterized in that it is provided with a symbol display section for a terminal block.