JPS6351338B2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to circuit breakers.

When attaching the top side of the cover of a conventional bottom-mounted circuit breaker or disconnector to the mounting plate, this can be achieved by passing a pin, etc. through the back of the mounting hole 1 as shown in Figure 1. Since it is necessary to attach the wire after connecting it to the wire, it has the disadvantage of poor workability. 3 is the edge and the outer shell of the cutter, and 4 is the handle.

Therefore, it is an object of the present invention to provide a circuit breaker or disconnector that can be easily and equally operated whether installed either vertically or vertically.

An embodiment of this invention is shown in FIGS. 2 to 5. That is, this circuit breaker has vertical grooves 8 corresponding to the number of poles formed on both end faces of an outer shell 7 consisting of a base 5 and a cover 6, horizontal grooves 9 formed above and below the vertical grooves 8, The terminal board 10 is made to protrude from inside at the center position in the height direction. The terminal board 10 is provided with a screw hole (not shown) or an insertion hole as a terminal hole, and a terminal screw 11 with a washer 11a is inserted into the terminal board 10.
Screw in. Further, mounting holes 12 are formed at both ends of the outer shell 7 so that the mounting hole 12 can be mounted from either direction. The terminal cover 13 has a flat plate part 14 of the outer shell 7 with an insertion part 15 that fits into the vertical groove 8, a concave part 16 formed on the distal end surface, and a protrusion part 1 on one side of the flat plate part 14 that fits into the horizontal groove 9.
7 is formed, and a hole 18 is formed corresponding to the mounting hole 12.

When attaching the bottom of this circuit breaker to the mounting plate P, do as shown in FIGS. 3 and 5. That is, the terminal cover 13 is faced to the lower end opening of the vertical groove 8 of the outer shell 7, the insertion part 15 is press-fitted into the vertical groove 8, and the protrusion 17
is attached to the outer shell 7 by fitting into the lateral groove 9 or by screwing, the terminal plate 10 is supported by the tip of the insertion part 15, and the terminal plate 10 is attached to the mounting plate P through the attachment hole 12 of the outer shell 7 with a pin or screw. Place the lead wire Q on the top surface of the terminal board 10 and tighten with the terminal screw 11. When installing the upper surface of the disconnector, do as shown in Figures 2 and 4. That is, the terminal cover 13 is attached to the upper end opening of the vertical groove 8 of the outer shell 7, and the attachment hole 12
Attach the through-hole cutter to the mounting plate P'. Next, the lead wire Q is placed on the lower surface of the terminal board 10, and the terminal screw 11 is tightened with a screwdriver X from the lower surface. As a result, the work is the same when installing the shield disconnector either vertically or vertically, and moreover, it is simpler than before.

As described above, in the circuit breakers and disconnectors of the present invention, the handle protrudes approximately at the center of the upper surface, passes through the mounting holes extending from the upper surface to the lower surface at both ends, and is attached to the upper surface of each end surface of the both ends. an outer shell having a terminal plate with a terminal hole forming a vertical groove extending from the side to the bottom side and protruding from the inside at the center of the vertical groove; and detachably attached to the top side or the bottom side of the both ends. A terminal cover having an insertion portion that forms a hole that aligns with the mounting hole and supports the terminal plate within the vertical groove, and a recess formed in the insertion portion into which a tip end side of a terminal screw of the terminal plate is fitted; It has the following effects.

In other words, the terminal board is placed in the center of the vertical groove, and a terminal cover with an insertion part that supports the terminal board with terminal holes can be attached to either end of the vertical groove, making it possible to install the circuit or disconnector either vertically or vertically. When installing, the work can be done in the same way, and it is more efficient and cheaper than conventional methods. In addition, since the terminal cover is always positioned relative to the mounting plate where the circuit switch or disconnector is attached, it is possible to prevent foreign matter such as dust from entering the vertical groove between the terminal board and the mounting plate, and to provide electrical insulation for the terminal board. This has the effect of ensuring safety and ensuring safety.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a conventional example, Fig. 2 is a partial perspective view of an embodiment of the present invention in a top-mounted state, Fig. 3 is a partial perspective view of a bottom-mounted state, and Fig. 4 is a front view of the top-mounted state. FIG. 5 is a front view of the lower surface attached state. 4...Handle, 7...Outer shell, 8...Vertical groove, 1
0...Terminal board, 11...Terminal screw, 12...Mounting hole, 13...Terminal cover, 15...Insertion part, 16
... recess, 18 ... hole.

Claims (1)

[Claims] 1. A handle protrudes from approximately the center of the top surface, passes through mounting holes extending from the top surface to the bottom surface at both ends, and forms a vertical groove extending from the top surface side to the bottom surface side on each end surface of the both ends. an outer shell having a terminal plate with a terminal hole protruding from the inside at a central position;
A terminal of the terminal board, the terminal having an insertion part that is removably attached to the upper surface side or the lower surface side of the both ends to form a hole that aligns with the mounting hole, and supports the terminal board in the vertical groove. A terminal cover having a recess formed in the insertion portion into which the tip end of the screw is fitted.