JPS6114282Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a charging generator for a vehicle.

FIG. 1 and FIG. 2 show a conventional generator of this type, which includes a housing 2 integrally formed with a rear bracket 7, and a housing 2 which is connected to the outside from inside the generator body. a plate-shaped terminal 1 disposed to protrude toward the housing, and a partition plate 3 that partitions the generator main body from the housing through which the terminal 1 passes and is supported and fixed to the end of the housing 2 on the generator main body side. It is equipped with

In the generator having the above structure, when the mating terminal 4 is connected to the terminal 1, a gap 8 is created between the housing 5 of this terminal 4 and the partition plate 3.
When the generator is exposed to water, water 6 adheres to the partition plate 3 and the inner wall surface of the housing 2, as shown in FIG.

Therefore, when a voltage is applied to the terminal 1, the potential becomes high, and a current flows through the attached water 6 to the edge 2a of the housing 2, which also serves as a ground. Since it contains a large amount of current, a large current will flow, and therefore, according to Faraday's law, the portion of the terminal 1 located in the gap 8 will be eluted due to electrolytic corrosion, and rust will also progress at the same time, so the corrosion will occur in a relatively short period of time. It broke. The broken portion of the terminal 1 corresponds to the shortest distance between the positive potential of the terminal 1 and the grounded portion 2a of the housing 2, and this is approximately the same as a typical observed example of breakage.

The above-mentioned conventional drawbacks could not be overcome simply by making the housing a sealed structure.

This idea was made in view of the above points,
To provide a charging generator for a vehicle whose terminals are not fused or corroded due to electrolytic corrosion even when exposed to water.

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

4 and 5 show a part of a vehicle charging generator 10 according to the present invention, and the generator 10 includes a housing 12 integrally formed with the rear bracket 7, and a housing 12 as in the conventional case. a plate-shaped terminal 1 disposed within the generator body 12 so as to protrude outward from the generator body; and a partition plate 3 through which the terminal 1 is supported and fixed to the end face of the generator body side of the housing 12. Equipped with:

As shown in detail in FIG. 5, the housing 12 has a cutout portion 13 formed by cutting out an end portion of the inner wall surface located on the generator main body side along the wall surface.
This cutout portion 13 is filled with insulating oil and fat, in this embodiment, grease 11. Furthermore, in this embodiment, the outer surface 3a of the partition plate 3 facing the opening side of the housing 12 is also coated with grease 11.
is coated. Therefore, even if a gap 8 is created between the housing 5 of the mating terminal 4 and the partition plate 3 when the mating terminal 4 is connected to the terminal 1, the gap 8 is filled with the grease 11. Therefore, it is possible to effectively prevent water from entering and adhering to the inside of the housing 12 and the partition plate 3.

As explained above, according to the present invention, there is a terminal protruding outward from the generator main body in a housing provided integrally with the rear bracket, and a terminal that penetrates through the housing to connect to the main body of the housing. In a vehicle charging generator comprising a partition plate fixed to a side end, an inner wall surface end portion of the housing on the partition plate side is removed along the wall surface, and an insulating oil and fat is removed from the inner wall surface end portion of the housing on the partition plate side. This insulating oil can completely electrically isolate the terminal from the housing, and since the insulating oil has a rust-preventing function, the terminal will not rust, and therefore the terminal will not be electrically charged. It is possible to provide an excellent vehicle charging generator that effectively prevents breakage in a short period of time due to melting or corrosion due to corrosion and has a long service life. Moreover, electrical corrosion can be prevented by filling with insulating oil without using elastic insulating material.
The configuration is simple and inexpensive.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view of the external terminal portion of a conventional vehicle charging generator, Figure 2 is a rear view of a typical vehicle charging generator, and Figure 3 is a plate-shaped terminal that has been electrolytically corroded due to moisture adhesion. FIG. 4 is a cross-sectional view of the external terminal portion of the vehicle charging generator according to the present invention, and FIG. 5 is a partially enlarged view of FIG. 4. 1...Plate terminal, 2, 12...Housing, 3
...Partition plate, 8...Gap, 11...Grease, 1
3...Deletion. In addition, in the figures, the same reference numerals indicate the same parts.

Claims (1)

[Scope of utility model registration request] A housing provided on the rear bracket, an external terminal provided inside the housing to protrude from the generator main body to the outside, and this terminal penetrates and is fixed to the end of the housing on the generator main body side. In the vehicle charging generator equipped with a partition plate, an inner wall surface end portion of the housing on the partition plate side is cut out along the wall surface, and an insulating oil is filled in this cut part, and the terminal is connected to the terminal. A charging generator for a vehicle, characterized in that the housing and the housing are electrically isolated.