JPH0339893Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention is used as a relay facility for branching and supplying input current introduced into the control panel to multiple breakers, for example in a power control panel. This invention relates to the improvement of collective terminal blocks.

(Conventional technology) Conventionally, a collective terminal block for a control panel has three
It consists of one input terminal and three branching conductors that are electrically connected to the input terminal, and terminals of a plurality of branching lines are connected to the branching conductor.

(Problems to be solved by the invention) In the above-mentioned conventional collective terminal block for control panels, the branching conductors extend from the insulating block horizontally at insulated intervals, requiring a large installation area. There is a problem in that it takes up a lot of space and is an obstacle to miniaturization of the board.

This invention solves the above-mentioned problems with conventional collective terminal blocks for control panels, and allows as many branch lines as possible without requiring a large installation space while ensuring sufficient insulation distance. The purpose is to provide a collective terminal block for control panels that can be connected.

(Means for Solving the Problems) In the present invention, in order to solve the above problems, three input terminals 3 and three corresponding branching conductors 4 are connected together on an insulating stand 1 using bolts 5. The three branching conductors 4 are bent in a stepwise manner with different steps from each other, and the different steps 4a
A plurality of screw holes 4c are formed for connecting the branch line terminal 7a, and the stepped portion 4a of each branch conductor 4 is provided with a plurality of screw holes 4c for connecting the branch line terminal 7a.
A collective terminal block for a control panel was constructed by fitting an elastic synthetic resin separator 9 with a U-shaped cross section to insulate between the upper and lower stepped portions 4a when the branch line terminals 7a are connected.

(Function) The collective terminal block 1 for a control panel of the present invention is installed by fixing the insulating base 1 onto the board of the control panel. Input conductors of each phase of three-phase AC are connected to the three input terminals 3, and a branch conductor 4 is connected to the three input terminals 3.
Terminals 7a of a plurality of branch lines 7, each connected to a device such as a breaker, are connected in a row. The branch lines 7 connected to the respective branch conductors 4 in the lower stage pass under the branch conductors 4 in the upper stage and extend sideways in an orderly manner. A separator 9 for insulating between the upper and lower branch conductors 4 is fitted from the side into each branch conductor 4 to which the terminal 7a of the branch line is connected. Since the branch conductors 4 are electrically insulated by the separator 9, the insulation distance between the branch conductors 4 can be made as small as possible. Further, since the branching conductors 4 are three-dimensionally provided at an insulating distance from each other, the planar installation space is reduced.

(Example) FIGS. 1 and 2 show an example of the present invention. FIG. 1 is a perspective view of the connected terminal block, and FIG. 2 is an exploded perspective view of the terminal block.

In FIGS. 1 and 2, the insulating stand 1 is made of synthetic resin, and is provided with a total of five pairs of bolt insertion holes 1a, one pair at a predetermined interval in the length direction. Then, bolts 2 are inserted into the bolt insertion holes 1a at both ends.
It is fixed on the control panel board by passing through it.

Three input terminals 3 and three corresponding branching conductors 4 are fixed on the insulating stand 1 by tightening them together with bolts 5 passing through the bolt insertion holes 1a of the insulating stand 1 from below. ing.

The input terminal 3 is provided with a screw hole 3a for fixing a connection terminal of an input conductor (not shown) with a bolt at one end protruding from the insulating base 1.
2 for fixing in the position corresponding to the bolt insertion hole 1a of
It has two screw holes 3b.

The branching conductors 4 are made of conductive strip plates, and have stepped portions 4a extending laterally from the insulating base 1 at different vertical heights. That is, branch conductor 4
One of the three is flat plate-shaped, and the other two are bent upward at a right angle from the end position of the insulating stand 1, bent again at a right angle at vertically different height positions, and extended horizontally. There is. And branch conductor 4
One end side is provided with two screw holes 4b for fixing that correspond to the bolt insertion holes 1a of the insulating stand 1, and a branch line 7 is provided on the stepped part 4a extending from the insulating stand 1.
It has four screw holes 4c for fixing the connecting terminals 7a with bolts 8.

Then, connect the connecting terminal 7a of the branch line 7 with the bolt 8.
An elastic synthetic resin separator 9 having a U-shaped cross section is fitted from the side so as to cover the stepped portion 4a, the connecting terminal 7a, and the bolt 8. This separator 9 is for electrically insulating between the upper and lower stepped portions 4a, 4a, and after being attached, the separator 9 is elastically
Since it is gripped by a, it does not fall off easily.

(Effects of the invention) As described above, in the invention, the three input terminals 3 and the corresponding three branch conductors 4 are fastened together with the bolts 5 on the insulating stand 1, and the three The branching conductor 4 is bent stepwise in different steps, and a branch line terminal 7 is provided at the different step portion 4a.
A plurality of screw holes 4c for connection are formed, and a branch line terminal 7a is provided at the stepped portion 4a of each branch conductor 4.
A collective terminal block for the control panel was constructed by fitting an elastic synthetic resin separator 9 with a U-shaped cross section to insulate between the upper and lower stepped portions 4a in the connected state. The branch conductors 4 are electrically insulated, and the branch conductors 4 are electrically insulated.
The insulation distance between the two can be made as small as possible,
In addition, since the branching conductors 4 are provided three-dimensionally at an insulating distance from each other, the planar installation space can be reduced, which contributes to the miniaturization of the collective terminal block and, in turn, to the miniaturization of the board. It has the effect of being able to.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a perspective view of the connected terminal block, and FIG. 2 is a perspective view of the connected terminal block.
FIG. 3 is an exploded perspective view of the collective terminal block. 1... Insulation stand, 3... Input terminal, 4... Branch conductor, 5... Bolt, 4... Branch conductor, 4a...
...Uneven part, 4c...Screw hole, 5...Bolt, 7
...branch line, 7a...connection terminal, 9...separator.

Claims (1)

[Scope of utility model registration request] There are three input terminals on the insulation stand and three corresponding
Tighten and fix the two branch conductors together with bolts,
The three branching conductors are bent stepwise at different levels from each other, and a plurality of screw holes for connecting branch line terminals are formed in the different level parts, and the branch line terminals are formed in the different level parts of each of the branching conductors. A collective terminal block for a control panel, characterized in that an elastic synthetic resin separator having a U-shaped cross section is fitted to insulate between the upper and lower stepped portions when the terminals are connected.