JP2596107Y2 - Terminal mounting device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal mounting device applied to an electromagnetic contactor or the like.

[0002]

2. Description of the Related Art Conventionally, there has been a terminal mounting device in which a side surface of an L-shaped terminal plate extending over an upper surface and a side surface of a body of an electromagnetic contactor is screwed and connected to a fixed contact mounted inside the body (for example, see, for example). No. 2-12670).

[0003]

However, it is necessary to separately attach the fixed contact and the terminal plate to the body, and since the terminal plate is fixed with one screw, the upper surface of the terminal plate is easily wobble. Therefore, it is necessary to increase the interval between the terminal plates. SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a terminal mounting device which can easily mount a terminal plate and a fixed contact and can firmly fix the terminal plate without fear of shaking.

[0004]

The present invention has a U-shape, in which a terminal screw portion is provided on the outer surface of one side piece, a locking projection is formed on the inner side, and a fixed contact and mounting are provided on the other side piece. A terminal plate having a screw hole for use, a first support portion for supporting the inner surface of the one side piece, and a locking groove for locking the locking projection formed in the first support portion; A support having a second support portion for supporting the outer surface of the other side piece and having a mounting hole aligned with the screw hole formed in the second support portion, and screwed into the screw hole through the mounting hole; A mounting screw, and a convex portion is formed on one of the other side piece and the second support portion of the terminal plate, and a concave portion for fitting the convex portion is formed on the other.

[0005]

According to the structure of the present invention, one side piece of the terminal plate abuts on the first support portion and the other side piece abuts on the second support portion, and the locking projection is engaged with the locking groove. At the same time, the protrusion and the recess are fitted to each other, and the mounting screw is screwed into the screw hole through the mounting hole in this state. In this case, since the terminal plate has fixed contacts, mounting is easier than in the past, and the terminal plate is temporarily attached to the support by the engagement between the engagement protrusion and the engagement groove and the engagement between the projection and the recess. It is easy to screw in the mounting screws because it is stopped, and after mounting, the play in the thickness direction of the intermediate piece of the terminal plate is regulated, and by tightening the mounting screws, one side of the terminal plate and the other side The play in the opposite direction of the pieces is restricted. For this reason, the terminal plate can be firmly fixed to the support body without wobbling as in the related art. Especially fixed connection
Since mounting screws and recesses are provided near points,
It is safe regardless of the force applied when tightening and loosening the screws.
The terminal plate having fixed contacts can be positioned and fixed. Also when the terminal plate is more juxtaposed, Ri can also be a name that narrow the mutual spacing of the terminal board, which contributes to miniaturization of the apparatus.

[0006]

One embodiment of the present invention will be described with reference to FIGS. That is, this terminal mounting device has a terminal plate 1, a support 2, and mounting screws 3 in FIG. The terminal plate 1 has a U-shape and has a terminal screw portion 5 on the outer surface of one side piece 4 and a locking projection 6 on the inner surface.
The other side piece 7 has a fixed contact 8 and a screw hole 9 for attachment. Also, a recess 10 is formed in the other side piece 7 by notching. The terminal screw portion 5 is formed by a screw through hole 19 formed in the one side piece 4, a nut 20 disposed inside the one side piece 4, and a terminal screw 21 which is screwed into the nut 20 through the screw through hole 19. Become.

The support 2 has a first support portion 11 for supporting the inner surface of the one side piece 4, and a locking groove 1 on which the locking projection 6 is locked.
2 is formed in the first support portion 11, and the second support portion 13 having the second support portion 13 for supporting the outer surface of the other piece 7 is formed in the second support portion 13 so as to align with the screw hole 9. doing.
Further, the convex portion 15 fitted to the concave portion 10 is
Is formed.

The support 2 of this embodiment is a contact block 24 (FIG. 4) of a body 23 of an electromagnetic contactor described later. First
The nut storage part 1 for storing the nut 20 in the support part 11
6 and a screw housing portion 17 for housing the distal end portion of the terminal screw 21. The second support portion 13 has an inner lower surface formed by forming a hole 18 in the side surface of the support 2 as an example.

The mounting screw 3 is screwed into the screw hole 9 through the mounting hole 14. 2 and 3 show the appearance of an electromagnetic contactor to which the terminal mounting device is applied. 26 is a coil terminal, 27 is a coil relay terminal connected to the coil terminal 26 by a lead wire (not shown) and connected to a coil 38 described later, 28 is a dovetail groove, and 29 is a dovetail engaging with the dovetail groove 28. An attachment having the ridges 22, 30 is a cut-and-raised piece for retaining and locking in a concave portion 31 of the attachment 29, and 32 is a body 2
A holding plate 34 having a locking claw 33 for detachably locking the bottom surface of the mounting member 3 and pressing the mounting tool 29, and a movable locking piece 34 for engagement and disengagement elastically locked to the locking claw 33.

FIG. 4 and FIG. 5 show the internal structure of the electromagnetic contactor. 24 is a contact block of the body 23, 2
Reference numeral 5 denotes an electromagnet block of the body 23, in which a hook 35 of the electromagnet block 25 is engaged with a concave portion 36 of the contact block 24, and a ring-shaped mounting spring (not shown) provided on the electromagnet block 25 at a symmetrical position of the hook 35. Are provided on the contact block 24. In the electromagnet block 25, 37 is a fixed iron core, 38 is a coil, 39 is a movable iron core having a connecting portion 40, and 41 is a return spring. In the contact block 24, reference numeral 42 denotes a movable frame having a connected portion 43, reference numeral 44 denotes a contact pressure spring, and reference numeral 45 denotes a movable contact provided on the movable frame 42.

FIG. 6 shows a cross section of the control panel. 4
7 is a case, 48 is an electromagnetic contactor to which this embodiment is applied,
49 is a transistor, 50 is a capacitor, and 51 is a wiring bar connecting these terminals. According to this embodiment, one side piece 4 of the terminal plate 1 abuts on the first support portion 11 and the other side piece 7 abuts on the second support portion 13 so that the locking projection 6 is formed in the locking groove. 12 and the projection 1
5 and the concave portion 10 are engaged with each other, and in this state, the mounting screw 3 is screwed into the screw hole 9 through the mounting hole 14.

In this case, since the terminal plate 1 has the fixed contacts 8, the mounting is simpler than in the prior art, and the locking between the locking projections 6 and the locking grooves 12 and the fitting between the convex portions 15 and the concave portions 10 are performed. Since the terminal plate 1 is temporarily fixed to the support 2 by the combination, the screwing work of the mounting screw 3 becomes easy, and after the mounting, the play of the intermediate piece of the terminal plate 1 in the plate thickness direction is regulated. The looseness of the terminal strip 1 in the opposite direction between the one side piece 4 and the other side piece 7 is regulated by the tightening of the screw 3. For this reason, the terminal plate 1 can be firmly fixed to the support 2 without shaking unlike the conventional case. In particular, a mounting screw near the fixed contact 8
3 and the recess 10 are provided, so that the terminal screw 3 is tightened.
Stable fixed connection without being affected by the force applied when loosening
The terminal plate 1 having the point 8 can be positioned and fixed. Also when the terminal plate 1 has a plurality of juxtaposed, Ri can also be a name that narrow the mutual spacing of the terminal plate 1, which contributes to miniaturization of the apparatus.

In the above embodiment, the concave portion 10 is formed by
3 and the convex portion 15 is formed on the second support portion 13, but the convex portion 15 may be formed on the other side piece 7 and the concave portion 10 may be formed on the second support piece 13.

[0014]

The terminal mounting device of the present invention has a fixed contact on the terminal plate, so that the mounting is simpler than in the past, and the locking projection on one side of the terminal plate and the first support portion are not provided. The terminal plate is temporarily fixed to the support by the engagement with the engagement groove and the fitting between the other side piece of the terminal plate and the convex portion and the concave portion of the second support portion, so that the mounting screws can be easily screwed in. In addition, after mounting, play in the thickness direction of the intermediate piece of the terminal plate is restricted, and play in the opposite direction between one side piece and the other side piece of the terminal plate is restricted by tightening the mounting screws. . For this reason, the terminal plate can be firmly fixed to the support body without wobbling as in the related art. Especially near fixed contacts.
Screw and recessed parts to tighten and loosen terminal screws.
Have fixed contacts stably without being affected by force
Can be positioned and fixed. Also when the terminal plate is more juxtaposed, Ri can also be a name that narrow the mutual spacing of the terminal plate, there is an effect that contributes to the miniaturization of the apparatus.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part of an embodiment of the present invention.

FIG. 2 is an exploded perspective view showing a state where a part of a main terminal is removed.

FIG. 3 is an exploded perspective view of a state before a mounting tool is attached.

FIG. 4 is a half sectional view of an electromagnetic contactor.

FIG. 5 is a half sectional view of the electromagnetic contactor in a different sectional position.

FIG. 6 is a sectional view of a control panel.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Terminal board 2 Support 3 Mounting screw 4 One side piece 5 Terminal screw part 6 Locking projection 7 Other side piece 8 Fixed contact 9 Screw hole 10 Depression 11 First support part 12 Lock groove 13 Second support part 14 Mounting hole 15 convex

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Showa 61-149254 (JP, U) Japanese Utility Model Showa 50-6676 (JP, U) Japanese Utility Model Showa 62-66148 (JP, U)

Claims (1)

(57) [Scope of request for utility model registration] 1. A U-shape, wherein a terminal screw portion is provided on an outer surface of one side piece and a locking projection is formed on an inner surface thereof.
A terminal plate having a fixed contact and a screw hole for attachment on the other side piece; a first support portion for supporting an inner surface of the one side piece; A support having a second support portion for supporting an outer surface of the other side piece and having a mounting hole formed in the second support portion, the mounting hole being aligned with the screw hole; And a mounting screw to be screwed into the screw hole through which a convex portion is formed on one of the other side piece and the second support portion of the terminal plate, and a concave portion on which the convex portion fits is formed on the other side. Terminal mounting device.