JPS60130068A - Terminal unit - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a terminal device applied to an electromagnetic contactor, a circuit breaker, etc.

[Background technology]

Conventional terminal devices of this type have been shipped with terminal screws fastened to the terminal board to prevent loss or the like. For this reason, users who use electromagnetic contactors have to unscrew the terminal screws before use. Especially when using round crimp terminals, it is necessary to completely remove the terminal screws, making wiring work cumbersome. There were drawbacks.

[Purpose of the invention]

Therefore, an object of the present invention is to provide a terminal device that facilitates wire connection.

[Disclosure of the invention]

This invention is characterized in that a terminal cover that covers a terminal portion is provided with a wire connection hole, and an elastic holding piece for temporarily holding a terminal screw is formed on the inner periphery of the wire connection hole. By temporarily holding the terminal screw in an elastic holding piece when shipped by the manufacturer, the user can position the terminal screw in the screw hole and screw it in by simply pushing its head during wiring. You can connect crimp terminals. therefore,
Wiring becomes extremely easy and efficient.

An electromagnetic contactor to which an embodiment of the present invention is applied is shown in FIGS. 1 to 8. That is, l is the main body, 2 is a terminal cover, 3 is a terminal part, 4 is a contact part, 5 is a bistable type polar electromagnet part, and 6 is an operating mechanism part. This electromagnetic contactor is a bistable type. When a direct current is applied to the coil 7 of the valuable electromagnet section 5 in one direction, the plunger 8 is attracted in one direction and operates.
The operating mechanism section 6 is operated to drive the movable contact section 9 of the contact section 4 to open or close. On the other hand, when the coil 7 is energized in the opposite direction, the plunger 8 moves in the opposite direction, and the contact portion 4 operates in the opposite direction.

The main body 1 consists of an upper case 10 and a lower case 11, and the terminal portions 3 are provided on both sides of the upper end of the upper case 10. The terminal part 3 consists of a terminal plate 12 and a terminal screw 13.
is provided with a screw hole portion 14, and also has a fixed fluid void portion 15 of the contact portion 4.
are integrally formed by bending a single conductive plate. The terminal screw 13 with a washer 16 is screwed into the screw hole 14 of the terminal plate 12, and a round crimp terminal (not shown) is passed between the washer 16 and the terminal plate 12 to make a connection. The terminal cover 2 has mounting claws 17 at both ends, and the mounting claws 17 lock into the mounting holes 18 of the upper case 10 to be installed. A wire connection hole 19 is formed through which a wire connection jig (not shown) is passed, and a thin elastic holding piece 20 is integrally protruded from the inner peripheral surface of the hole 19 .

As shown in FIG.
It is pushed in and supported between the head 21 and the washer 16. Therefore, one elastic holding piece 20 may not be in the shape of a collar as shown in FIG. 6(a) but may be in the shape of a plurality of tongues as shown in FIG. 6(b).

1 shows the terminal screw 13 temporarily held by the elastic holding piece 20, and FIGS. 2 and 3 show the terminal screw 13 attached to the main body 1. The manufacturer ships the magnetic contactor in this state,
On the user's side, a round crimp terminal is inserted into the gap H between the terminal screw 13 and the terminal plate 12, the head 21 is pushed toward the terminal plate 12, and the terminal is tightened into the screw hole 14 with a screwdriver or the like. Therefore, it becomes easy for the manufacturer to attach the terminal screws, and the wiring work for the user becomes extremely simple and efficient.

〔Effect of the invention〕

As described above, according to the terminal device of the present invention, it is easier to attach terminal screws on the manufacturer's side and wire connections on the user's side than in the past, and there is an effect that the number of man-hours during construction can be reduced.

[Brief explanation of the drawing]

Fig. 1 is a side view of an electromagnetic contactor to which an embodiment of the present invention is applied, with the terminal cover disassembled, Fig. 2 is a partial side view of the terminal cover attached, and Fig. 3 is a partial plan view thereof. , FIG. 4 is a cross-sectional view of the electromagnetic contactor, FIG. FIG. 8 is an exploded perspective view. l...Main body, 2...Terminal cover, 12...Terminal board, 13...Terminal screw, 14...Screw hole portion, 16...
・Washer, 19... Connection hole, 20... Elastic holding piece,
21...Head Figure 1 Figure 2 Figure 3

Claims (2)

[Claims] (1) A main body having a terminal plate having a screw hole, a terminal screw screwed into the screw hole, and a terminal screw attached to the main body to cover the terminal plate and corresponding to the screw hole for wiring. 1. A terminal device comprising: a terminal cover having a hole formed therein and having an elastic holding piece protruding from the inner periphery thereof for temporarily holding the terminal screw; (2) The terminal device according to claim 1, wherein the terminal screw is a washer material, and the elastic holding portion is engaged between the head of the terminal screw and the washer.