JPH0452962Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a terminal fitting attachment device for a coil used, for example, in an electromagnetic contactor.

[Conventional technology]

Conventionally, in order to attach a terminal fitting to the coil of an electromagnetic contactor, a mounting part for the terminal fitting was provided integrally with the coil spool, and the terminal fitting was fitted into the groove of this fitting part.
The coil lead wires were soldered. However, if an external force is applied to the terminal fitting, the terminal fitting may sway or fall off, and the lead wire of the coil may be severed. Therefore, the terminal fitting is screwed to the coil spool to prevent it from shaking or falling off.

[Problem that the invention attempts to solve]

Conventionally, the terminal fittings were screwed to the coil spool as described above, which not only increased the number of parts but also required many man-hours for assembly, increasing costs and hindering improvements in work efficiency. Ta.

The present invention was developed to solve the above problems. By simply fitting the terminal fitting into the groove provided in the coil spool, the terminal fitting can be prevented from shaking or falling off, reducing costs and improving work efficiency. It is an object of the present invention to provide a terminal fitting mounting device that contributes to improvements in the terminal fittings.

[Means for solving problems]

The coil terminal fitting attaching device according to the present invention is bent into a substantially U-shape, and has a first section attached to one horizontal piece.
, a second engaged portion is provided on the vertical piece, and a lead wire attachment portion is provided on the other horizontal piece opposite to the one horizontal piece, and from the main body A terminal fitting serving as a terminal portion extending in the opposite direction to the two horizontal pieces, and a substantially U-shaped groove provided in the coil spool and into which the main body is inserted into the side surface; A terminal fitting mounting portion provided with a first engaging portion that engages with the first engaged portion and a second engaging portion that engages with the second engaged portion. It is.

[Effect]

In the present invention, when the main body of the terminal fitting is fitted into the groove formed in the terminal fitting attachment portion of the coil spool, the first engaged portion of one horizontal piece of the main body is engaged with the first engaged portion of the terminal fitting attachment portion. In addition, the second engaged portions of the vertical pieces of the main body engage with the second engaging portions of the mounting portion. As a result, even if an external force is applied to the terminal fitting, it will not sway or fall off, and therefore the lead wire of the coil will not be cut.

〔Example〕

FIG. 1 is a plan view of an embodiment of the present invention, and FIG. 2 is a side view thereof. In both figures, 1 is the terminal fitting, 2
3 is a coil, and 3 is a coil spool made of synthetic resin, which is molded integrally with the terminal fitting mounting portion 31.

As shown in FIG. 3, the terminal fitting 1 consists of a main body 11 bent into a substantially U-shape, and a terminal portion 19 formed integrally with the main body 11. Main body 11
is one horizontal piece (hereinafter referred to as "long piece 12")
The vertical piece 13 is provided with a first engaged part 15 to prevent it from coming off, and the vertical piece 13 is provided with a second engaged part 16 to prevent it from coming off. ) is provided with a lead wire attachment portion 17 bent upward. The terminal portion 19 is connected to the main body 11
It extends from the end of the vertical piece 13 in a direction opposite to each of the pieces 12 and 14, and a terminal 20 is provided at the end.

The terminal fitting attachment part 31 (hereinafter referred to as "attachment part 31") provided integrally with the coil spool 3,
As shown in FIG. 3, a U-shaped groove 32 that aligns with the main body 11 of the terminal fitting 1 and a groove 33 into which the lead wire attachment part 17 is inserted are provided continuously. Terminal fitting 1 is installed on the upper wall 34.
The first engaging portion 3 that is engaged with the first engaged portion 15 of
Further, the side wall 36 of the groove portion 32 is provided with a second engaging portion 37 with which the second engaged portion 16 of the terminal fitting 1 engages.

To attach the terminal fitting 1 to the coil spool 3 configured as described above, the main body 11 of the terminal fitting 1 is inserted into the groove 32 of the mounting portion 31 from the side. At this time, since the long piece 12 and the vertical piece 13 of the terminal fitting 1 are thicker than the width of the groove 32 because the first and second engaged parts 15 and 16 are formed, the upper wall 34 and the side wall of the groove part 32 are thicker than the width of the groove 32. Push up (push out) 36 and move forward. When the terminal fitting 1 is further advanced, the first and second engaged parts 15 and 16 engage with the first and second engaging parts 35 and 37, and the upper wall 34 and the side wall 36 are restored to their original positions due to elasticity. The terminal fitting 1 returns to the state shown in FIG.
Fixed to 1. Next, the lead wire 21 of the coil 2 is wound around the lead wire attachment portion 17 of the terminal fitting 1 and soldered.

In the present invention configured as above, the fourth
As shown in the figure, when an external force is applied to the terminal portion 19 in the direction of arrow A, for example, the terminal fitting 1 rotates counterclockwise about point a, and the first engaging portion 3
A gap GA is created between the first engaged portion 5 and the first engaged portion 15. Also, if an external force is applied in the direction of arrow B,
The terminal fitting 1 rotates clockwise about point b, creating a gap GB between the second engaging portion 37 and the second engaged portion 16. These gaps AG and BG cause play in the terminal fitting 1;
The rotation angles α and β are extremely small because the terminal fitting 1 is far away from the lead wire mounting portion 17, and becomes even smaller at the position of the lead wire attachment portion 17, so that the terminal fitting 1 hardly moves. Therefore, there is no risk that the terminal fitting 1 will move or fall off, and therefore the lead wire attachment part 1
The lead wire 21 of the coil 2 soldered to the terminal 7 will not be cut. Note that there is a difference in the thickness of the terminal fitting 1 and the width of the groove 32 of the mounting portion 31.
If there is a possibility that the terminal fitting 1 may move up and down, the long piece 12 of the terminal fitting 1 is provided with a protrusion 18 to absorb this movement, so that the terminal fitting 1 can be mounted more firmly and reliably.

In the above description, the present invention was applied to a coil of an electromagnetic contactor, but it goes without saying that it can be applied to other coils as well.

[Effect of idea]

As is clear from the above description, the present invention provides the first and second engaged parts on the main body of the terminal fitting, and also provides the first and second engaged parts on the mounting part of the coil spool. And since the second engaging portion is provided,
By simply inserting the terminal fitting into the groove of the mounting portion without using screws or the like, it is possible to prevent shaking or falling off due to external force. Therefore, it greatly contributes to cost reduction and improvement of work efficiency.

[Brief explanation of the drawing]

FIG. 1 is a plan view of an embodiment of the present invention, FIG. 2 is a side view thereof, FIG. 3 is an exploded perspective view of the embodiment of the present invention, and FIG. 4 is an explanatory view of the operation of the present invention. 1...Terminal fitting, 11...Main body, 15, 16...
...First and second coupled parts, 17... Lead wire attachment part, 2... Coil, 21... Lead wire, 3...
Coil spool, 31...Mounting part, 32, 33...
...Groove portion, 35, 37...first and second engaging portions.
In each figure, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Claims for Utility Model Registration] (1) It is bent into a substantially U-shape, and one horizontal piece has a first engaged part, and the vertical piece has a second engaged part, and further: A terminal fitting consisting of a main body in which a lead wire attachment part is provided on the other horizontal piece facing the one horizontal piece, and a terminal part extending from the main body in a direction opposite to the two horizontal pieces, and a coil spool. a first engaging portion and a second engaging portion, each having a substantially U-shaped groove portion on a side surface into which the main body is inserted; A terminal fitting mounting device for a coil, comprising: a terminal fitting mounting portion provided with a second engaging portion with which the engaging portion engages. (2) The coil terminal fitting mounting device according to claim 1, wherein one horizontal piece of the main body is provided with a protrusion that absorbs vibration in the vertical direction.