JPS6349041Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is a control panel used in a remote multiplex transmission control system that controls a large number of loads via two signal lines such as an indoor power line, especially for control operations for sub-control. It's about the board.

To briefly explain this remote multiplex transmission control system, as shown in FIG. Operation panel 22
The terminals 23 to which the loads 26 are respectively connected are controlled via the relays 25. The sub-operation panel is equipped with a large number of operation switches corresponding to each load, and when any one of the operation switches is operated, the main operation panel determines the operation of this operation switch and applies the operation to the corresponding load 26. Signals are transmitted to the connected terminal device 23 via signal lines 24, 24. This signal is transmitted in a time-division manner, and each operating switch and terminal device (or load) is assigned an address, and each operating switch, terminal device, etc. is distinguished by this address.

The present invention provides a control panel to be used as a sub-operation panel equipped with a large number of operation switches in the above system, and its purpose is to facilitate construction, maintenance and inspection, and to To provide a control operation panel that does not accidentally damage electronic circuits on a printed board.

The present invention will be described in detail below based on illustrated embodiments.This control panel includes a panel body 1 with an open front surface,
A frame 9 is attached to the edge of the opening, a door 2 is attached to the frame 9 with a hinge 19 on one side, a protective cover 3 is fixed to the back of the door 2, and a number of operation switches (not shown) are attached to the front. printed board 4 attached to
It is composed of a mounting plate 5 that covers an opening 10 of the door 2. The printed board 4 fixed to the back surface of the mounting plate 5 exposes the operating parts of each operating switch to the opening 10 of the door 2 through small holes 18 provided in the mounting plate 5. The protective cover 3, which is formed in a box shape with an open front, is fixed to the back of the door 2 via a mounting plate 5, and has a through hole 13 in the back and a hinge 19. Hole 14 on the side of the arm
is open. Here, the through hole 13 is large enough to allow the connector 16 to pass therethrough, and the hole 14 is large enough to allow a hand to be inserted. Further, on the back side of the protective cover 3, a tension stopper member 11 for holding the signal line 24 drawn into the panel body 1 and a terminal block 12 to which the signal line 24 is connected are attached. A connection line 15 connects the terminal block 12 and the printed board 4, and has a connector 16 connected to a connector 17 on the side of the printed board 4 at one end, and is passed through the through hole 13. If the panel body 1 is installed as an exposed type, the back side is attached to construction material as shown in Figure 3a and the signal line 24 is introduced from the back side, and when it is installed as a recessed type, the back side or the signal line 24 is introduced from the back side as shown in Figure 3a. The signal line 24 is drawn into the board 1 from the top surface as shown in FIG.

Therefore, during construction, after the panel body 1 is attached, the frame 9 on which the door 2 is attached is connected to the panel body 1. Then, the mounting plate 5, the printed board 4, and the protective cover 3 are attached to the back of the door 2, and the wiring is then connected. That is, the signal line 24 is connected to the terminal block 12 and fixed to the back surface of the protective cover 3 by the tension stopper member 11. Then, insert the connector 16 at the other end of the connecting wire 15, which has one end connected to the terminal block 12, into the protective cover 3 through the through hole 13, insert your hand through the hole 14, and connect this connector 16 to the connector next to the printed board 4. 17. The printed board 4 and the protective cover 3 are mounted on the board 1.
The frame 9 may be attached in advance before being attached to the frame 9. The printed board 4 is covered by the protective cover 3, so that it is safe to perform wiring work that is likely to cause damage to the printed board 4. Even if it becomes necessary to remove the protective cover 3, there is no need to disconnect the signal line 24 by simply removing the connectors 16 and 17 from the hole 14. Note that it is preferable for the hole 14 to be provided on the side surface next to the hinge 19 in terms of safety for the printed board 4.

As described above, in this invention, the printed board is covered with a protective cover during construction, especially during wiring, so there is no need to take special precautions for the printed board, and wiring during construction is easy. The connector can be connected to the printed board by inserting your hand through a hole in the side of the protective cover, without having to remove the protective cover that covers and protects the printed board.
It is possible to connect and disconnect the printed board and the connector of the connection line, and the printed board and the signal line can also be disconnected at this connector, so the signal line can be left as is, making installation and maintenance inspection easy. The upper printed board must always be protected.

[Brief explanation of the drawing]

FIG. 1 is a schematic block diagram of a remote multiplex transmission control system, and FIG. 2 is an exploded perspective view of an embodiment of the present invention.
Figures 3a and b are perspective views and cross-sectional views of the exposed type and embedded type boards in the same as above, Figure 4 is a perspective view in the same as the above, Figure 5 is an exploded perspective view of the main parts in the same as the above, and Figure 6 Figure 7 is an enlarged rear view of the main parts of the protective cover, and Figure 7 is an enlarged sectional view of the main parts, where 1 is the board, 2 is the door, 3 is the protective cover, 4 is the printed board, 10 is the opening, and 11 is the tension stopper. Element,
12 is a terminal block, 13 is a through hole, 14 is a hole, 15 is a connection line, 16 and 17 are connectors, and 24 is a signal line.

Claims (1)

[Scope of utility model registration request] A panel with an open front, a door attached to the front of the panel via a frame, a protective cover attached to the back of the door, and an operation switch are provided, and the operation part of each operation switch is connected to the door. It consists of a printed board exposed through an opening, and on the back of the protective cover that covers the printed board, a tension stopper member that holds the signal line drawn into the board and a terminal block to which the signal line is connected are attached. One end of the connection wire is connected to the terminal block, and the other end is provided with a connector that is connected to the printed board side connector.The protective cover has a through hole for passing the connection wire through, and the other end is connected to the printed board side connector by inserting your hand. A control operation panel that is provided with a hole that allows connection and removal of the connection line side connector.