JPS60183902A - Control board structure of dustproof type - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a control panel having a dust-proof structure, and more specifically,
Alternatively, push a drawer-type unit into the control panel and store it.
This invention relates to a dust-proof control panel structure that completely protects the control panel from dust.

[Background of the invention]

Robots, NC devices, and power control devices are equipped with control panels that house precision circuit units with high circuit density, but these control panels are often used in harsh environments where dust is scattered. It is necessary to completely prevent dust from entering the control panel, especially into the circuit unit.

FIG. 4 is a diagram for explaining a conventional control panel structure of this type, and is of a vertical floor-mounted type. Further, FIG. 3 is a horizontal cross-sectional view of FIG. 1. In the figure, ■ is the partition plate on which the circuit unit is placed, 2 is the circuit unit, and 0゛I
It is shaped like a box with the J side open. 3 is a dustproof banking stretched on the front part of each partition plate 1; 4 is a main body frame;
Reference numeral 5 indicates the front thickness, 6 indicates a handle, and 7 indicates a hinge attached to one end of the front door 5, supporting the front thickness 5.

When the control panel of FIG. 1 is horizontally sectioned, it is as shown in FIG. 3, and common component mounting plates and cable passage spaces are formed on the sides and back of the circuit unit 2, respectively. As shown in FIG. 3, when W5 on the front side of the circuit unit 2 is closed, the inner upper and lower edges of the front door 5 come into close contact with the backing 3, and this prevents dust from entering from the front door 5 side. is prevented. As you can see in the figure, 611
Although the gap at the bottom of the -F of the face door 5 is eliminated by the backing l and dust can be prevented from entering, there are gaps in the control panel on the left and right sides of the circuit unit 2, and dust scattered in the control panel 7ii can be seen as shown by the arrow. There was a problem with infiltration.

[Object of the invention] The object of the present invention is to eliminate the problems of the prior art described above,
The present invention provides a dust-proof control panel structure that can completely and quickly cut off dust from all directions of the circuit unit.

[Summary of the invention]

A feature of the present invention is that a plate is provided on the hinge mounting side of the front door, which is interlocked with the opening and closing of the front door and closes the gap between the side edge of the circuit and the knitted side edge and the door. A contact plate that comes into close contact with the front door is provided on the side edge of the circuit unit on the side opposite to the mounting side, completely preventing dust from entering from all directions when the front door is closed.

[Actual Process of the Invention 11] Hereinafter, one embodiment of the present invention will be described in detail with reference to FIGS. 2 and 4. In Fig. 2, the same reference numerals as in Fig. 1 indicate the same things, but in Fig. 2, the front door 5 is
A backing 8 is stretched along the inner edge of the front door 5, and several holes are provided on the hinge attachment side of the front door 5 to be linked to the opening and closing of the front door 5. On the other side of the circuit unit 2 (opposite the hinge installation side of the front door), there is a ml
The edge of the f-face door 5 is in close contact 7, and a hammer contact board 1 is provided to prevent dust from entering the circuit unit 2. The end of the duct cover 9 is also in close contact with this contact plate 11. FIG. 4 shows the closed state of the 1lii1 side door 5 and dust cover 9, and the tightness is maintained by the contact of the backing 8 stretched over each.

In Figure 2, the upper stage of the broken part mainly shows the circuit unit, and the next stage mainly shows the front door, but if all the stages accommodate sliding type circuit units, The structure is the same, and dust is completely prevented from entering each circuit unit.

〔Effect of the invention〕

As is clear from the above embodiments, according to the present invention, when a sliding type circuit unit is housed in a control panel and the front door of the control panel is closed, the gap on the front door side of the circuit unit is closed. The advantage is that it can be completely eliminated.

[Brief explanation of the drawing]

Figures 1 and 3 show the conventional control panel structure. Figure 1 is a partially cutaway perspective view, Figure 3 is a sectional view in the water direction, and Figures 2 and 4 are This shows one embodiment of the present invention.
1 and 3, respectively. 1... Partition plate, 2... Circuit unit, Front door 8... Packing, 9... Duct cover, 1o...
Contact plate, 11...Door contact plate. Kaya 1 Illustrated 2 Illustrated

Claims (1)

[Claims] A control panel structure in which a box-shaped circuit unit with an open front is placed on a partition plate constituting the control panel and pushed in, and the front open part of the circuit unit is closed by closing the front door of the control panel. For convenience, a backing is stretched along the inner periphery of the front thickness, and a backing is attached to the hinge-heavy part that supports the front door so that the side edge of the circuit unit and the front thickness are interlocked with the opening and closing of the front door. A dust-proof control panel structure, characterized in that a contact plate is provided to close the gap, and a door contact plate is provided that is in close contact with the front thickness on the side edge of the circuit unit on the side opposite to the hinge mounting portion, '=Lt. .