JPS608488Y2 - Busbar support device - Google Patents

Description

[Detailed description of the invention] This invention relates to a busbar support device, and in particular, even if the back side of the busbar support is closed due to an obstacle, it is easy to install the busbar support from the other side, and the busbar support can be easily installed via the busbar support. The wiring duct has mounting hardware attached to it so that terminal boards and other equipment can be attached to it.

Conventionally, when supporting the busbar inside the panel, it was difficult and troublesome to install the busbar when the back side of the busbar support stand was blocked by an obstacle, and it was difficult to install the busbar inside the panel. It is difficult to install, requires special mounting materials, creates wasted space inside the panel, making it impossible to downsize the panel, and has disadvantages such as difficulty in connecting and inspecting the terminal board inside the panel. be.

Therefore, the purpose of this invention is to eliminate such drawbacks by making it possible to install the busbar support from the other side even if the back side of the busbar support is blocked by an obstacle when supporting the busbar in the panel. To provide a busbar support device which facilitates the installation of terminal boards, other appliances, etc. by attaching fittings for wiring ducts via a busbar support stand.

Other objects, features and advantages of the invention will become apparent from the following detailed description of the embodiments illustrated in the accompanying drawings.

FIG. 1 shows an embodiment of the bus bar support device of this invention.
The three-phase busbars 2.2', 2'' are attached to tapped holes 3.3', 3' embedded in the front of the busbar support 1 made of molded insulators using busbar mounting screws 4.4', 4'. , each bus bar 2.
Interpolar protrusions 5, 5' serving as partition walls are provided between 2' and 2''.

These inter-electrode protrusions 5, 5' are formed integrally with the busbar support 1, and are provided with through holes 6, 6' from the front to the back.
These through holes 6, 6' have bus bar support mounting legs 7 on the back side.
, 7' is fitted into the enlarged hole 6a.

6'a is formed.

A groove-shaped mounting frame member 8 for mounting the busbar support 1 is appropriately attached to the board frame 20, and one end of the L-shaped busbar support mounting legs 7, 7' is placed at an appropriate position in the direction of extension of the busbar. It is attached to the bent portions on both sides of the attachment member 8 with attachment screws 9, 9'.

The enlarged holes 6a, 6'a on the back side of the bus bar support base 1 are fitted into the other ends of these bus bar support base mounting legs 7,7', and the mounting bolts 10 are inserted from the front side of the protrusion between poles 5°5'. .10' is integrally screwed together with one end of the groove-shaped wiring duct mounting hardware 11.11' into the tap holes of the busbar support mounting legs 7, 7'.

Further, wiring ducts 12 and 12' for internal control wires are respectively attached to the sides of the wiring duct mounting hardware 11 and 11',
At the other end of these mounting hardware 11 and 11' are terminal mounting hardware 1.
3 is installed in the horizontal direction, terminal boards 14 and 14' for control circuits are installed at both ends of this terminal installation hardware 13, and an external wiring duct 15 is installed at the center.

FIGS. 2 and 3 show a plan sectional view and a back view of an embodiment of a board equipped with the bus bar support device of this invention, and the front part of the box body 16 of the board is arranged in two rows. Even when the side-by-side left and right unit control units 17 and 17' are housed and the back side of the busbar support 1 is closed, the frame member 8, the busbar support 1, and the wiring duct can be attached to the panel frame member from the back side of the panel. Hardware 11
, 11', terminal boards 14, 14', etc., can be installed in an orderly manner.

As mentioned above, this idea is based on the mounting legs 7, 7' of the busbar support 1 mounted on the mounting frame member 8, and the distance between the poles of the busbar support 1 made of an insulator to which the three-phase busbars 2゜2', 2'' are attached. Projections 5, 5
Fit the mounting legs 7, 7' into the back side of the through-holes 6, 6' provided in ', extending from the front side to the back side, and attach the wiring duct mounting hardware 11.11 with the mounting bolts 10.10' from the front side.
' are integrally screwed to the mounting legs 7 and 7', so even if there is an obstacle on the back side of the bus bar support 1 and there is no space for installation, it can be done from the front side of the bus bar support 1. The mounting frame member 8, the busbar support 1, the busbars 2゜2', 2'', and the wiring duct mounting hardware 11.11' can be easily installed, and the busbar support 1 can be used to attach the busbars 2.2', 2''. By attaching the terminal board 14, 14' and other equipment to the front space of the board, the board space can be used effectively and the board itself can be made smaller.In addition, the connection work and inspection on the terminal board, which is especially necessary, can be done on the back side. It has the advantage of being easy to perform.

[Brief explanation of drawings]

FIG. 1 is a plan view of essential parts showing an embodiment of the busbar support device of this invention, FIG. 2 is a simplified plan view of a board implementing the busbar support device of this invention, and FIG. 3 is a It is a rear view taken along the A' line. In the figure, 1: bus bar support, 2.2', 2": bus bar, 5, 5
': The protrusion between the poles of the bus bar support base, ? , 7/: Bus bar support base mounting leg, 8: Mounting frame member, 11.11': Wiring duct mounting hardware, 13: Terminal mounting hardware, 14, 14': Terminal board.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A mounting frame member that is fixed to the panel frame and has busbar support mounting legs, and each busbar mounting tap that has busbar mounting tap holes spaced apart at a certain pitch on the surface side. An inter-electrode protrusion protruding toward the front surface is provided in the middle of the hole, and an enlarged hole into which the bus bar support mounting leg fits is integrally formed on the back side of the through hole extending from the front surface to the back surface of the inter-electrode protrusion. It consists of a busbar support made of a molded insulator, and a wiring duct mounting hardware that is attached at one groove-shaped end to the front side of the protrusion between poles of the busbar support. The enlarged holes are fitted into the bus bar support mounting legs, and the bus bar support base is screwed together with the mounting hardware of the wiring duct from the surface side of the inter-electrode protrusion to the mounting frame member using mounting bolts. The bus bar is screwed into the bus bar mounting tap hole of the bus bar support base, and the mounting frame member, bus bar support base mounting leg, bus bar support base, and mounting hardware are installed in order from the closed side due to an obstruction to the open side. busbar support device. 2. The bus bar support device according to claim 1 of the registered utility model claim, which comprises a mounting frame member installed vertically within the panel and bus bar support stands attached at appropriate intervals. 3. The bus bar support device according to any one of claims 1 and 2 of the utility model registration claim, wherein a terminal board is attached to one end of a mounting hardware of a wiring duct in the front space of the bus bar.