JPS595230Y2 - Electromagnetic clutch ground wire connection structure - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a ground wire connection structure for an electromagnetic clutch, and its purpose is to reduce the amount of materials used and the number of processing steps.

Conventionally, when connecting a ground lead, as shown in FIGS. 1 and 2, an insulated electric wire 7 and a ground lead wire 8 of a cylindrically wound coil 2 are connected to an electromagnet yoke via an insulating bushing 3. 1 was penetrated, and the terminal 4 was crimped and fixed to the ground lead wire 8 on the back side, and the toothed washer 6 was overlapped and press-fitted into a hole (not shown) previously drilled in the electromagnet yoke part with a screw rivet 5. .

Therefore, there are disadvantages in that the number of parts is significantly large and the number of processing steps is large.

The present invention has been devised in view of the above-mentioned drawbacks of the conventional art, and one embodiment of the present invention will be described below with reference to FIGS. 3 and 4.

Note that parts with the same functions as the conventional components described above will be described using the same numbers.

In the figure, reference numeral 1 denotes a yoke portion of an electromagnet having a through hole 1a, which is constructed by welding and fixing a press molded product 1b having a cylindrical U-shaped groove to a hollow disk 1C.

Reference numeral 2 denotes an electromagnetic coil attached to the yoke 1, and both ends of the coil wound into a cylindrical shape pass through the yoke 1 via insulating bushings 3 provided in the through hole 1a.

Reference numeral 9 designates a flange that holds the yoke 1, and has a through hole 9a that matches the through hole 1a of the yoke 1.A ground lug terminal 10 is fixed to this through hole 9a by an eyelet 11, and its inner diameter is connected to an insulated electric wire. Both ends of the coil of the ground lead wire 7 and the ground lead wire 8 pass through the coil.

The grounding lead 8 that has passed through is fixed to the grounding lug terminal 10 as shown in FIG.

FIG. 5 shows another embodiment of the present invention, and shows an eyelet ground lug terminal 12 in which a ground lug terminal 10 and an eyelet 11 are integrated.

As is clear from the above description, according to the present invention, there is no need to prepare a pilot hole for press-fitting a rivet, as is the case in the past, and there is no need to fix the crimp terminal to the ground lead wire. Toothed washers, rivets, etc. are also for lower use.
This has the effect of greatly reducing the number of parts used and the number of processing steps.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a conventional electromagnetic clutch, Fig. 2 is a side view of the same, Fig. 3 is a sectional view of an embodiment of the present invention, and Fig. 4 is a sectional view of a conventional electromagnetic clutch.
The figure is a side view of the same main part, Figure 5a. b is a side view and a sectional view of an eyelet ground lug terminal according to another embodiment of the present invention. 1...Yoke, 1a...Through hole, 2.
...Magnetic coil, 7...Insulated wire,
8...Earth lead wire, 9...Flange, 9a...Through hole, 10...Earth lug terminal.

Claims (1)

[Scope of utility model registration request] A through hole is provided in the yoke of the electromagnet and a flange that supports the yoke, through which the insulated wire and the ground lead wire of the electromagnetic coil pass, and a ground lug terminal is fixed to the through hole provided in the flange, and the ground lead wire is attached to the ground lug terminal. The ground wire connection structure of the electromagnetic clutch is made by connecting the .