JPS605727Y2 - Charging generator output terminal - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to the structure of an output terminal of an AC charging generator that supplies current to a battery mounted on an automobile.

Conventionally, when tightening the terminal of the wiring connection wire to the battery with a nut, the terminal rotates and does not stay in place, resulting in the connection wire being held in an abnormal state, or the terminal touching a point with a different potential. This would have caused a short circuit accident.

Further, when the operator corrects the terminal to a predetermined position after once tightening the nut, the tightened nut may loosen and cause contact failure.

The present invention has been devised to eliminate such inconveniences.

Figure 1 shows a conventional output terminal, where 1 is an AC charging generator for automobiles, 2 is a rectifier, and 3 is a bolt press-fitted into the rectifier, which is electrically connected and knurled 3.
1, it is also mechanically fixed.

4 is a first insulator, and 5 is a second insulator, which electrically insulates the bolt 3 from the bracket 6.

A first nut 7 fixes the rectifier 2 to the bracket 6, and its surface 71 is a contact surface with a terminal 8 on the vehicle side.

9 is a second nut, 10 is a spring washer, and by tightening the terminal 8 to the nut 7, the terminal 8 is electrically connected to the bolt 3 reliably.

Figures 2 and 3 show the terminal 8 in a tightened state, with the terminal 8 in a predetermined preferred position and the lead portion 81 held by the terminal 8 remaining in place; In FIG. 3, when the second nut 9 is tightened, the terminal 8 rotates in the direction (in the direction of the arrow in the figure), and the lead portion 81 is unduly pulled, creating an extreme bend 82 and breaking the wire. FIG. 4 shows a first nut showing an embodiment of the present invention that is not provided in order to eliminate the above-mentioned disadvantages, and has at least one or more conical or It has a hemispherical protrusion 72.

FIG. 5 shows another embodiment in which at least one linear protrusion 72a is provided so as to divide the surface 71 into fan shapes.

FIG. 6 shows another embodiment, which has at least one arcuate protrusion 72b on the surface 71.

Although FIGS. 4 to 6 show typical embodiments of the present invention, the shapes of the protrusions may be a combination of these.

For example, the linear protrusion 72a in FIG. 5 may be a broken line protrusion that does not separate the surface 71 into a complete fan shape, but may be a broken line protrusion with a portion missing, or may have a trademark, letters, or numbers embossed in a convex shape.

FIG. 7 is a diagram showing that when the terminal 8 is tightened using the nut 7 illustrated in FIGS. 4 to 6, co-rotation does not occur.

When the second nut 9 is tightened with the first nut 7 completely tightened, the terminal 8 first tightens the first nut 7.
However, since the area of the projection 72 is small, the terminal 8 is locally deformed.

As you tighten it, surface 81 of terminal 8 will become surface 7 of the nut.
1 to complete tightening.

Since the terminal 8 is locally bitten into the protrusion 72 at the beginning of tightening, it cannot rotate together with the second nut 9, and therefore the terminal 8 is initially held in the predetermined position set on the first nut 7. Ru.

1st. The protrusion 72 attached to the surface 71 of the nut 1-7 can be extremely easily realized by simply providing an engraving in the die for forging the nut.

As described above, this invention can prevent the terminal from rotating in the direction of tightening the nut, which sometimes occurs when tightening the wiring terminal in the past, which simplifies the wiring work and also prevents the wiring from rotating. This is extremely practical as it frees you from the wasteful work of straightening terminals that have broken or rotated due to excessive force, and also prevents loosening of the neck 1- due to straightening the terminals.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional view showing a state in which a wiring terminal is tightened to a conventional output terminal, Figs. 2 and 3 are front views showing that the terminal 8 rotates in the tightening direction, and Figs. 4 to 6 The figures are external views of nuts showing different embodiments of the present invention, and FIG. 7 is a sectional view of an output terminal using the nuts shown in FIGS. 4 to 6. In the figure, 1 is an AC charging generator for automobiles, 2 is an output rectifier, 3 is a bolt, 7 is a first nut, 71 is the surface of the nut, 72 is a protrusion, 8 is a wiring terminal, 9 is a second
This is Natsuto. In the drawings, the same reference numerals indicate the same or equivalent parts.

Claims (1)

[Scope of utility model registration request] Pol 1-1, which is electrically connected to the output side rectifier of an automotive AC charging generator a wiring terminal that is attached to the bolt in contact with an axial outer surface provided with a protrusion, and a wiring terminal that is screwed onto the bolt and clamps the wiring terminal with the first nut; An output terminal of a charging generator, comprising a second nut that makes a protrusion of the first nut bite into the wiring terminal.