JPH028375Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention is a method for electrically insulating terminals fixed adjacently for connecting conductors such as electric wires in a switchboard etc. This relates to separators.

(Prior Art and its Problems) Conventionally, for safety reasons, three terminals for three-phase alternating current are installed at a predetermined insulating interval from each other in accordance with the voltage, for example in a switchboard or the like. For this reason, there is a problem in that the installation space for the terminals becomes large, which is one of the causes of increasing the size of the switchboard.

The present invention solves the above-mentioned conventional problems and provides a simple and inexpensive separator between terminals that can minimize the distance between terminals while providing electrical insulation between the terminals. This is what we are trying to provide.

(Means for Solving the Problems) In the present invention, in order to solve the above-mentioned conventional problems, bolts are installed at mutual intervals on the terminals of electrical equipment such as the breaker 1 and on the mounting members such as the top of the insulating stand 5. A separator 1 interposes between a plurality of plate-shaped terminals 3 fixed at 4 to insulate the terminals 3, 3.
2 is proposed. This separator 12
is formed by punching and bending a thin plate 13 made of insulating synthetic resin, and includes a pair of substantially battledore-shaped shielding plates 17, 17 that stand opposite each other on both sides of the terminal 3, and a base end side of both shielding plates 17. A mounting plate 18 is connected in the orthogonal direction and has an insertion hole 18a for the bolt 4 in the center.
The mounting plate 18 is interposed between the terminal 3 and a mounting member such as the insulating stand 5, and the terminal 3 is
It is configured to be fixed by tightening with bolts 4.

(Function) The inter-terminal separator 12 of the present invention can be manufactured extremely easily by punching out a single insulating synthetic resin thin plate 13 into a predetermined shape and bending it. That is, a pair of battledore-shaped shielding plates 17, 1 are formed from a thin plate 13 made of synthetic resin.
7 and a mounting plate 18 that connects the portions of the shielding plates 17, 17 that correspond to the handles of the battledores are punched out, and the battledore-shaped shielding plates 17 on both sides are bent at right angles to the mounting plates 18 to produce the separator 12. In addition, in the center of the mounting plate 18,
At the same time as punching, holes 18a for bolt insertion are formed. For example, when this separator 12 is used for the three-phase AC terminal 3, it is only necessary to attach it to the center terminal 3. When the terminal 3 is mounted on, for example, the insulating stand 5, the separator 12 is overlapped with the terminal 3 and fixed by being tightened together with the bolt 4. The separator 12 is the shielding plate 17,1
7 electrically insulates between the terminals 3, 3, so the insulation distance between the terminals 3, 3 can be narrowed,
This allows the switchboard to be made smaller. Further, this separator 12 can be easily manufactured from a single synthetic resin plate without wasting material, and can be obtained at low cost.

(Embodiment) An embodiment of the present invention is shown in FIGS. 1 to 4.
FIG. 1 is a perspective view of a separator, FIG. 2 is a developed view of the separator, FIG. 3 is a plan view of the separator attached, and FIG. 4 is an exploded perspective view of the terminal block.

In the figure, 1 is a breaker, 2 is a three-phase input wire connected to the breaker, and this input wire 2 is
It should be considerably thicker than the rated current of breaker 1. 3 is a terminal for connecting the connection terminal 1a of the breaker 1 and the input electric wire 2. three terminals 3
are plate-shaped metal plates, each of which is fixed to an insulating stand 5 made of synthetic resin orthogonally to an insulating stand 5 made of synthetic resin with a bolt 4 at its intermediate portion. One end side of the terminal 3 is constructed with dimensions and mutual spacing that allow connection to the connection terminal 1a of the breaker 1.

As shown in FIG. 2, the insulating stand 5 is provided with five bolt insertion holes 5a provided at appropriate intervals.

The terminal 3 has a bolt insertion hole 3a in the connection part to the breaker 1 on one end side, a screw hole 3b in the middle part, and another screw hole 3d for connecting the input electric wire in the enlarged part 3c on the other end side. It is formed.

Therefore, the bolt 4 for fixing the terminal 3 on the insulating base 5 is inserted into the insertion hole 5 of the insulating base 5 from below.
a and is screwed into the screw hole 3b of the terminal 3, with the screw portion protruding upward. A thin wire 6 connected to a voltmeter (not shown) is connected to this protrusion by a nut 7.

One end side of the terminal 3 has a bolt insertion hole 3a.
Insert the bolt 8 into the connecting terminal 1a of the breaker 1.
and a bolt 9 is connected to the screw hole 3d on the other end side.
Connecting terminal 2 of input wire 2 by screwing in
a is connected.

Reference numeral 12 denotes an inter-terminal separator, which is held between the insulating stand 5 and the center terminal 3. That is, as shown in FIG. 2, the inter-terminal separator 12 is made by notching two corners of a rectangular thin plate 13 made of insulating synthetic resin at right angles, and also by cutting T-shaped notches 14,
15, and both ends of the notch 14 are connected to fold lines 16,
Fold up at right angles along 16, fold lines 16, 16
A bolt insertion hole 18a is formed in the center between them. Therefore, this inter-terminal separator 12
a pair of opposing shielding plates 17, 17 in the shape of battledore;
It consists of a mounting plate 18 extending perpendicularly to the shielding plate 17 so as to connect the lower edge of the part corresponding to the handle of the battledore on the base end side of the shielding plate 17. This inter-terminal separator 12 is constructed by holding the terminal 3 disposed in the center between the shielding plates 17, 17, stacking it on the mounting plate 18, aligning the bolt insertion holes 18a, 3b, and tightening with the bolt 4. A mounting plate 18 is sandwiched and mounted between the terminal 3 and the terminal 3.

In this embodiment, since the three terminals 3 are integrally supported on the insulating stand 5 at the intermediate portion, a considerably large force is applied when connecting the large connecting terminal 2a of the input wire 2 to the terminal 3. However, the force is not directly applied to the connection terminal 1a of the breaker 1, and therefore no damage is caused to it. Further, since the terminal 3 itself is supported by the insulating stand 5, it is reinforced and becomes strong. Thin wires 6 such as control wires, pilot lamp connection wires, voltmeter connection wires, etc. are secured to the bolts 4 protruding from the middle of the terminals 3 by tightening them with appropriate strength using nuts 7, etc., separately from the terminals 3. There is no risk of cutting. Further, a protective cover (not shown) that covers the connection terminal portion of the breaker 1 can be attached by inserting bolts into bolt insertion holes 5a, 5a at both ends of the insulating stand 5. Since the separator 12 electrically insulates the terminals 3, 3 by the shielding plates 17, 17, the insulation distance between the terminals 3, 3 can be made narrower, thereby achieving miniaturization. Also, this separator 1
No. 2 can be easily manufactured from a single synthetic resin plate without wasting material, and can be obtained at low cost.

(Effect of the invention) As described above, in this invention, the breaker 1
Terminals 3,
This paper proposes a separator 12 that insulates between the three. The separator 12 is formed by punching and bending a thin plate 13 made of insulating synthetic resin, and includes a pair of substantially battledore-shaped shielding plates 17 , 17 that stand up opposite each other on both sides of the terminal 3 , and a pair of shielding plates 17 , 17 . The proximal ends are connected in the orthogonal direction, and there is an insertion hole 18 for the bolt 4 in the center.
a, and this mounting plate 18 is connected to a mounting member such as an insulating stand 5 and a terminal 3.
The shielding plate 17,
17 electrically insulates between the terminals 3, 3, the insulation distance between the terminals 3, 3 can be narrowed, thereby making it possible to downsize the switchboard. It can be easily manufactured from a single synthetic resin plate without wasting material, and can be obtained at low cost.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention. Fig. 1 is a perspective view of a separator, Fig. 2 is an exploded view of the separator, Fig. 3 is a plan view of the separator installed, and Fig. 4 is a diagram of the terminal block. It is an exploded perspective view. DESCRIPTION OF SYMBOLS 1... Breaker, 1a... Connection terminal, 3... Terminal, 4... Bolt, 5... Insulating stand (mounting member), 12... Separator, 13... Insulating synthetic resin thin plate, 17... Shielding Plate, 18... Mounting plate, 18a... Bolt insertion hole.

Claims (1)

[Scope of utility model registration request] A separator that insulates the terminals by intervening between a plurality of plate-shaped terminals that are fixed with bolts at intervals on the case of an electrical device or its terminals, etc. A pair of substantially battledore-shaped shielding plates, which are formed by punching and bending a thin plate made of insulating synthetic resin, stand up opposite each other on both sides of the terminal, and the proximal ends of both shielding plates are connected in an orthogonal direction, with the 1. A separator between terminals, comprising a mounting plate having a bolt insertion hole, the mounting plate being interposed between the mounting member and the terminal, and fixed together with the terminal by tightening the bolts.