JPH06121417A - Distribution board for breaker - Google Patents

Abstract

PURPOSE:To provide a distributor for a breaker in which the use of the distributor considerably facilitates operations for branching a number of secondary current output terminals of the breaker to be incorporated in a distribution board to various types of apparatus such as a motor. CONSTITUTION:A distributor for a breaker is made up of: a substrate 3 on necessary areas of which fastening bolt holes 8 are opened; three bus bars having breaker terminal connection holes 9 opened on one end of each bus bar and a number of branch line connection holes 10 opened on the bus bars from one end to the other end thereof; a number of insulating supports 5 at one end thereof fixed to the substrate 3 and at the other end thereof fixed to the bus bar 4 for supporting the three bus bars 4 on the substrate 3 in a parallel manner; and a protective cover 6 attached to the substrate 3 via spacers 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a breaker distributor for branching three secondary current output terminals of a breaker incorporated in a distribution board, a distribution board, a control board or the like into various devices such as a motor.

[0002]

2. Description of the Related Art For example, in order to arrange a plurality of motors in a factory, it is necessary to branch three secondary current output terminals of a breaker incorporated in a distribution board, a distribution board, a control board or the like into various devices such as a motor. However, there is no known distributor for the breaker.

[0003]

Therefore, conventionally, the ends of the three-phase electric wires of each motor are bundled in the same kind to form three bundles, and crimp terminals are attached to the ends of the bundles, respectively.
Each crimp terminal was attached to each of the three terminals of the breaker.

In this case, when the capacity or the number of motors changes, or when a contact failure occurs, it is necessary to remove the crimp terminal from the bundle of electric wires and perform the above work again each time, which is very troublesome. Met.

Therefore, a bus bar is also used. This is to prepare three bus bars cut to the required length, open a breaker terminal connection hole at one end of the bus bar, and make a tap to open a plurality of branch line connection holes from one end to the other. After that, one end of each bus bar is connected to each secondary current output terminal of the breaker, and electric wires from each motor are connected to the branch line connection holes.

In this case, it is necessary to support the bus bar in an insulated state, and this series of operations is extremely troublesome.

The object of the present invention is to use it to perform an operation of branching three secondary current output terminals of a breaker incorporated in a distribution board, a distribution board, a control board or the like into various devices such as a motor. An object of the present invention is to provide a breaker voltage divider that is simple.

[0008]

DISCLOSURE OF THE INVENTION The breaker distributor according to the present invention is for branching three secondary current output terminals of a breaker to various devices such as a motor, and mounting bolt holes are provided at required positions. An open board, three bus bars each having a breaker terminal connection hole at one end and a plurality of branch line connection holes from one end to the other end, and one end fixed to the board At the same time, the other end is fixed to the bus bar, and the three bus bars are supported in parallel and in parallel to each lead terminal of the breaker. It consists of a protective cover.

[0009]

The breaker distributor according to the present invention has a board having mounting bolt holes at required locations, a breaker terminal connecting hole at each end, and a plurality of branch line connections from one end to the other end. Three bus bars with holes and one end fixed to the board and the other end fixed to the bus bar so that the three bus bars are arranged in parallel and correspond to the lead terminals of the breaker. Since it consists of multiple insulating supports to support and a protective cover that is detachably attached to the board via spacers, it can be easily attached to the wall and the busbar and breaker output terminals can be connected. Work and connection work between the bus bar and branch electric wires to various devices such as motors can be done easily.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 4 show a first embodiment of a breaker distributor according to the present invention. The breaker distributor (2) is incorporated in a distribution board, a distribution board, a control panel or the like. It is for branching the three secondary current extraction terminals (1a) of the breaker (1) to various devices such as motors, and is connected to the breaker (1) through the wiring (12) for connection. Format. The breaker distributor (2) has a base plate (3) with mounting bolt holes (8) at required locations, three bus bars (4) and three bus bars (4) on the base plate (3). It consists of a plurality of insulating supports (5) that are supported in parallel on top of each other, and a protective cover (6) attached to the substrate (3) via spacers (7).

A breaker terminal connecting hole (9) is formed at one end of each bus bar (4), and a bolt hole for mounting an insulating support is provided at a position closer to the inner side of the breaker terminal connecting hole (9) and at the other end.
(18) is formed, and a plurality of branch line connection holes (10) are formed between both bolt holes (18) at predetermined intervals. Each bus bar (4) is plated with nickel to prevent oxidation. In addition to nickel plating, the bus bar (4) may be tin plated, solder plated, silver plated, gold plated, or the like. The breaker terminal connection hole (9) is a bolt hole and the branch line connection hole (10) is a screw hole.

The substrate (3) is a chromate-treated rectangular iron plate, and the length of the substrate (3) and the length of the bus bar (4) are equal. Insulation support on board (3)
(5) The bolts (13) for mounting and the bolts (14) for mounting the spacer (7) are fixed by spot welding.

The insulation support (5) is made by fixing nuts (16) embedded in both bottom surface parts (15a) of an acrylic cylindrical insulator (15). One bottom surface part (15a) Nuts (16) are screwed onto the bolts (13) for mounting the insulation support (5) and are fixed to the board (3). Bottom of the other
(15a) is provided with a hole (17) for inserting a tool when fixing the insulating support (5) to the substrate (3). Then, screw into the nut on the other bottom part (15a) of the insulating support (5) through the bolt hole (18) of each bus bar (4).
(19) are screwed and fixed to each bus bar (4).

The height of the insulation support (5) depends on each bus bar.
The height of (4) is set to be almost equal to the height from the wall surface of each take-out terminal (1a) of the breaker (1). The height of each bus bar (4) can also be adjusted by changing the thickness of the substrate (3). Also insulation supports (5)
Are arranged at intervals corresponding to the intervals between the takeout terminals (1a).

The spacer (7) is formed by covering the side portion of the iron round bar (20) with an insulating tube (21) made of vinyl chloride.
A female screw portion (22) screwed into a bolt (14) fixed to the substrate (3) is formed at one end portion thereof, and a male screw portion is formed at the other end portion.
(23) is formed. Male thread (23) is protective cover (6)
It is made to project from the holes (24) formed at the four corners of the above, and the cap nut (25) is screwed into this.

The protective cover (6) is made of acrylic resin and is an orange transparent plate. Therefore, it is easy to recognize that it is dangerous and the inside of the distributor (2) for breaker is easy to understand.

This breaker distributor is used as follows.

After the protective cover is removed, the breaker terminal connection hole (9) is attached below the breaker (1). This is done by mounting the bolt holes (8) on the board (3).
The bolt holes (8) are screwed into the screws (26).
Just screw in. Then, connect each secondary current extraction terminal (1a) of the breaker (1) to the breaker terminal connection hole (9) of each bus bar (4) through the wiring (12) for connection, and connect the bus bar (4). The branch wires (11) to various devices such as motors are connected to the branch wire connection holes (10). Finally, a protective cover (6) is attached and the branching work is completed. FIGS. 5 to 7 show a second embodiment of the breaker distributor according to the present invention. The breaker distributor (32) of this embodiment is shown in FIG. )
Is of a type directly connected to the secondary current output terminal (1a) of the breaker (1). 5 to 7,
The same parts as those in FIGS. 1 to 4 are designated by the same reference numerals and the description thereof will be omitted. In this breaker distributor (32), the length of each bus bar (34) is larger than the length of the board (33), and one end of each bus bar (34) is longer than the board (33) and one end of the protective cover (36). It is projected. Breaker terminal connection holes (39) are provided in each of these protruding parts, and the end where each breaker terminal connection hole (39) is provided is not supported by the insulating support (5) and is free. It has become.

In this breaker distributor, the breaker terminal connection hole (39) is directly connected to each terminal of the breaker (1) with a screw. This work is designed such that the height of the insulation support (5) holds each bus bar (4) at a height above the wall of each breakout terminal (1a) of the breaker (1), and Since 5) is arranged at an interval corresponding to the interval between the take-out terminals (1a), it can be performed with one touch.

[0021]

EFFECTS OF THE INVENTION According to the breaker distributor of the present invention,
It can be easily mounted on the wall, and the connection work between the bus bar and each take-out terminal of the breaker and the connection work between the bus bar and branch electric wires to various devices such as motors can be done easily.By using this, The work of branching the three secondary current output terminals of the breaker to various devices such as motors becomes extremely easy, and it is also possible to easily cope with changes in the capacity of various devices such as motors and the increase in the number of devices. .

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of a distributor for a breaker according to the present invention.

FIG. 2 is a front view in which the same portion is cut away.

3 is a partially omitted cross-sectional view taken along the line III-III in FIG.

FIG. 4 is a perspective view showing an insulating supporter.

FIG. 5 is a perspective view showing a second embodiment of a breaker voltage divider according to the present invention.

FIG. 6 is a front view in which the same portion is cut away.

7 is a partially omitted cross-sectional view taken along the line VII-VII of FIG.

[Explanation of symbols]

 (1) Breaker (1a) Secondary current output terminal (2) (32) Breaker voltage divider (3) (33) Board (4) (34) Bus bar (5) Insulation support (6) (36) Protective cover ( 7) Spacer (8) Mounting bolt hole (9) (39) Breaker terminal connection hole (10) Branch line connection hole

Claims (1)

[Claims] 1. A breaker (1) for branching three secondary current extracting terminals (1a) to various devices such as a motor, and a mounting bolt hole (8) is provided at a required position. Board (3) (33) and breaker terminal connection holes (9) at each end
(3) Bus bar (4) with (39) and multiple branch line connection holes (10) from one end to the other
(34), one end is fixed to the board (3) (33) and the other end is fixed to the bus bar (4) (34), and three bus bars (4)
(34) in parallel and each take-out terminal (1a) of the breaker (1)
A plurality of insulating supports (5) supporting on the board (3) (33) to correspond to, and the protective covers (6) (36) attached to the board (3) (33) via the spacer (7). ) And a breaker voltage divider.