JP2543803Y2 - Closed switchboard - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a closed switchboard such as a control center.

[0002]

2. Description of the Related Art Conventionally, in this type, a plurality of unit chambers are formed by partitioning a box body into a plurality of stages vertically by a shelf plate.
In each of these unit rooms, an electric device unit including various devices such as a circuit breaker, an electromagnetic switch, and an overload relay is housed in a freely movable manner. A bus room is provided on the back of each unit room, a power supply side contact provided on each electric device unit is engaged with a vertical bus connected to a power supply, and the load side contact is connected to one of the relay terminals. , And led out of the board from the other end of the relay terminal via a cable.
(June 55-20091).

[0003]

The power contact and the load contact of each unit of such a closed switchboard are arranged in the same manner in the vertical direction, and the vertical bus avoids the load contact and the lower stage. Connected to the power supply contact, the structure becomes complicated, and the bus bars must be insulated from each other. Was.

[0004]

A closed type switchboard in which a plurality of unit chambers are formed by partitioning the inside of a box up and down with a shelf plate, and in which a plurality of electric equipment units are mounted so as to be able to be freely moved in and out of the unit chambers. A vertical bus bar on the power supply side is disposed vertically in the box body, and one end is connected to the vertical bus bar,
It has a connection terminal for connecting the other end to the power supply side terminal of the electric equipment unit, and has a power supply side conductor block whose middle part is molded with insulating resin, and a connection terminal for connecting one end to the load side terminal of the electric equipment unit. And a connection terminal for connecting the other end to the terminal of the load cable, and a load-side conductor block having an intermediate portion molded with an insulating resin, which is attached to the rear surface of the unit chamber.

[0005]

Therefore, the connection conductor connecting the vertical bus on the power supply side to the power supply terminal of the electric equipment unit and the connection conductor connecting the load side terminal of the electric equipment unit and the terminal of the load cable are molded with insulating resin and integrated. Is becoming

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1
Is a box body of a switchboard, and 2 is a vertical bus bar, which is vertically disposed at the center of the box body, and is fixed to the box body via support members 3 made of insulating material at both ends. Reference numeral 4 denotes a horizontal bus bar fixed to an upper portion of the box body with an insulating support (not shown), and the vertical bus bar is connected to an intermediate portion. Reference numeral 5 denotes a shelf plate, and a plurality of unit chambers 6 are formed in the box body by arranging a plurality of units vertically on both sides of the vertical generatrix. 7 is a circuit breaker,
This is an electrical equipment unit that contains various devices such as electromagnetic switches and overload relays. Reference numerals 8 and 9 denote a power-supply-side terminal and a load-side terminal provided in the electric equipment unit, and 10 denotes a power-supply-side conductor block, in which connection conductors 11, 12, and 13 are embedded and integrally molded with an insulating resin. One side of each of the connection conductors is provided in the horizontal direction so as to protrude from the molded body so as to be provided with connection terminals 11a, 12a, and 13a so as to be connectable to each of the power supply side terminals 8 of the electric equipment unit. It is. The other side of each connection conductor is provided with connection terminals 11b, 12b, and 13b which are provided in parallel in the vertical direction and protrude from the molded body so as to be connected to each of the vertical buses 2. Reference numeral 14 denotes a load-side conductor block in which connection conductors 15, 16, and 17 are integrally molded with an insulating resin. One side of each of the connection conductors is provided so as to protrude from the molded body in a horizontal direction and is provided with connection terminals 15a, 16a, and 17a so as to be connected to each of the load-side terminals 9 of the electric device unit. It is. The other side of each connection conductor is
Connection terminals 15b, 16b, and 17b are provided in parallel with each other in the vertical direction so as to protrude from the molded body, and are configured to be connectable to the load-side cable 18. The power-supply-side conductor block and the load-side conductor block configured as described above are attached to the rear surface of each unit room, and the connection terminals 11b, 12b, and 13b of the connection conductors of the power-supply-side conductor block are connected to the vertical bus, and Connection terminal 1 of connection conductor of conductor block
5b, 16b and 17b are respectively connected to the load cable terminals 18, the electric equipment unit is inserted into the unit room, and the power supply terminal 8 of the electric equipment unit is connected to the connection conductor connection terminals 11a, 12a and 13a of the power supply side conductor block. Connect to
The load-side terminals 9 are connected to the connection terminals 15a, 16a, and 17a of the connection conductors of the load-side conductor block.

[0007]

According to the present invention, the connecting conductor for connecting the vertical bus bar on the power supply side to the electrical equipment unit and the connecting conductor for connecting the electrical equipment unit and the load cable are formed by molding with an insulating resin. Therefore, the assembling work is simplified, the air insulation distance can be reduced, and the closed switchboard can be made compact.

[Brief description of the drawings]

FIG. 1 is a front view of a closed switchboard with a door removed showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view taken along line AA of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Box 2 Vertical bus bar 6 Unit room 7 Electric equipment unit 8 Power supply terminal 9 Load side terminal 10 Power supply side conductor block 14 Load side introduction block 18 Load cable terminal

Claims (1)

(57) [Scope of request for utility model registration] 1. A closed type switchboard in which a plurality of unit chambers are formed by partitioning a box body up and down with a shelf plate, and in which a plurality of electrical equipment units having various instruments mounted therein can be freely inserted and removed . In the center, a vertical bus on the power supply side arranged vertically
And electrical equipment units symmetrically arranged on the left and right of the vertical bus
And a connection terminal connected to the vertical bus at one end of the unit chamber.
At the same time, it is installed perpendicular to the rear surface and
Connected to the power supply side terminal of the electric equipment unit on the power supply side
Connecting terminals to be connected horizontally to the rear surface of the unit room.
Power supply side with the middle part molded with insulating resin
Body block and one end connected to the load-side terminal of the electrical equipment unit
Connect the connection terminals horizontally to the rear of the unit room.
And connect the other end to the load cable terminal.
Connection terminals are installed horizontally to the rear of the unit room.
Load side conductor with the middle part molded with insulating resin
And the power supply side conductor block and the load side conductor block.
Is the same structure on both sides of the vertical bus.
In the vertical direction on the same plane as the rear surface of the unit room.
The power supply side conductor block and the load side conductor block
A closed switchboard, characterized in that a lock is attached to a rear surface of the unit room in a vertical direction .