JPH0129704Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a setting device for a protective relay, and more particularly to a setting device for a protective relay that can simultaneously adjust the number of turns of two coils of the relay.

Generally, a so-called setting device is used in a protective relay used to control an electric circuit of a power device, which sets the operating value and operating time of the protective relay in order to operate the protective relay normally.

Conventionally, the so-called setting device of a protective relay has a first
As shown in FIGS. 1 and 2, terminals 3 and 4 are embedded in different insulating molds 1 and 2, and have wires 5 and 6 connected to a coil (not shown) attached to one end thereof by, for example, soldering. The terminals 4 are connected by setting screws 7, and the terminals 4 are molded with an insulating mold 8 in which the portions exposed from the insulating mold 2 are provided with insertion holes for the wiring 6.

However, in the setting device with the above configuration, if the terminal 4 is buried in the insulating mold 2, it becomes difficult to solder the wiring 6. Therefore, the lower end of the terminal 4 is exposed from the insulating mold 2, and the wiring 6 is soldered to the lower end. Fix it by attaching it.

Then, the exposed lower end portion is molded with an insulating mold 8 provided with an insertion hole for the wiring 6.
For this reason, there has been a problem that the types of insulation molds have increased and the shapes have become complicated.

Furthermore, since the positions at which the wires are soldered to each terminal are different, there are problems in that the efficiency of the soldering work is low and that the effective use of insulation space is inhibited.

Note that 10 is a screw for fastening the molds 1 and 2 to the body, 11 is a stabilizing device mounting screw insertion hole, and the molds 2 and 8 are joined together when mounted.

This invention was made in view of the above problems,
The purpose is to provide a relay selection device that reduces the number of insulation molds, makes effective use of insulation space, and is easy to manufacture.

Hereinafter, drawings showing an embodiment of the present invention will be described in detail. In this embodiment, the same reference numerals are given and detailed explanation thereof will be omitted. 3 is a terminal embedded in the insulating mold 1. The tip of the terminal 3 protrudes from the insulating mold 1, and a wiring 5 connected to a coil (not shown) is fixed by, for example, soldering.

The insulation mold 1 is provided with an insertion hole for the threaded portion 7a of the setting screw 7, and the base of the terminal 3 is also provided with a threaded portion 7a.
A female threaded portion is provided which is screwed together.

4 is a terminal provided along the outside of the insulating mold 1 in order to reduce the number of types of insulating molds.
One end of the terminal 4 protrudes from the insulating mold 1 at the same position in the vertical direction as the terminal 3 in order to facilitate wiring installation work, and at its tip there is a wiring 6 connected to a coil (not shown) similar to the wiring 5. and fixed. Further, the terminal 4 is provided with an insertion hole through which the screw portion 7a of the setting screw 7 is inserted, and an insulating mold 9 having an L-shaped cross section and having a through hole for the base of the setting screw 7 is coated on the outside of the hole for fastening. It is integrally provided to the insulating mold 1 by screws 10. In the setting device for a protective relay configured as described above, when the setting screw 7 is screwed to the terminals 3 and 4, each terminal 3 and 4 are connected, and the wiring 5 of each terminal 3 and 4 is connected as shown in FIG.
The number of turns of coils A and B of the relay connected to 6 can be adjusted at the same time.

As explained above, the present invention provides a relay setting device in which a plurality of terminals 3 and 4 each having a wiring to be connected to a coil are buried in different insulating molds and connected with a setting screw. An L-shaped terminal 4 is arranged along the outside of the insulating mold 1 buried in the axial direction of the screw, and an insulating mold 9 with an L-shaped cross section is attached to the outside of the insulating mold 1. The coil A of the relay,
The configuration of the protective relay setting device that simultaneously adjusts the number of turns of B has been simplified, the number of types of insulation molds has been reduced and the shape has been simplified, and the efficiency of wiring soldering work has been improved, making the insulation space more efficient. It has the effect of

[Brief explanation of the drawing]

1 and 2 show a conventional embodiment, with FIG. 1 being a front view and FIG. 2 being a sectional view taken along the line A--A in FIG. Figures 3, 4 and 5 show an embodiment of the present invention, with Figure 3 being a front view and Figure 4 being Figure 3A-
A sectional view taken along arrow A, and FIG. 5 is a wiring diagram. 1, 2, 8, 9... Insulation mold, 3, 4...
Terminal, 5, 6... Wiring, 7... Setting screw.

Claims (1)

[Scope of utility model registration request] In a relay setting device in which a plurality of terminals 3 and 4 each having a wiring connected to a coil are embedded in different insulating molds and connected by a setting screw, the terminal 3 is embedded in the axial direction of the setting screw. An L-shaped terminal 4 is arranged along the outside of the terminal 1, an insulating mold 9 having an L-shaped cross section is attached to the outside of the terminal 4, and the tips of the terminals 3 and 4 are arranged above and below in the same direction, and the wiring A setting device for a relay, characterized in that a setting screw is attached to the setting screw and connected to the setting screw.