JPH0246437Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a mounting device for a wiring terminal board for electrical signal transmission such as a fuel sender of an automobile.

[Problems to be solved by the prior art and the invention]

This type of conventional structure will be explained based on FIGS. 2 to 5.

Fig. 2 shows the external appearance of a terminal board mounting device used in a fuel sender, in which the terminal storage case 1 is approximately box-shaped, and the top surface is completely open.
The bottom surface has spacer parts 1b and 1c having an opening 1a in the center thereof. Two lead wires 2 and 3 for signal transmission and one lead wire 4 for grounding are led into the case 1, and terminal plates 5, 6, and 7 provided at the ends of each are screwed. Alternatively, it is fixed by caulking. In the figure, a grounding lead wire 4 is led to the center, and a terminal plate 7 is directly fixedly connected to a grounding plate 9 (described later) that protrudes into the case 1 from the opening 1a with a screw 8. Lead wires 2 and 3 for signal transmission are led to both sides, and the terminal plates 5 and 6 are connected to the mounting flange 10 (described later) with the spacer parts 1b and 1.
It is fixed by caulking through c.

FIG. 3 is a cross-sectional view of the terminal fixing part of the signal transmission lead wire in FIG. Case 1 is fixed to mounting flange 10 via spacer portion 1b by upper and lower collar portions 11a and 11b by caulking the tip of rod-shaped terminal 11 passing through portion 1b. Furthermore, the inside of the case 1 is filled with an electrically insulating synthetic resin 12, which covers the terminal mounting portion inside the case 1.

FIG. 4 is a cross-sectional view of the fixed part of the grounding terminal plate 7 in FIG. Plate 9 protrudes into case 1 from opening 1a, and flange 1
A terminal plate 7 is screwed with a screw 8 to a distal end portion 9a arranged with a gap 13 between the terminal plate 7 and the terminal plate 7.

By the way, in the above-mentioned mounting device, the storage case 1 is fixed to the flange 10 only by caulking the terminal plates 5 and 6 for signal transmission with the rod-shaped terminals 11. The bottom surface of the case 1 may rise above the surface of the flange 10, and even after the installation work, the case 1 may float if the lead wires 2, 3, and 4 are pulled upward from the outside. Such a state allows moisture to enter the case 1 through the gap between the case 1 and the flange 10, which is likely to cause poor continuity due to corrosion of the terminal board. Particularly in recent years, salt and other substances have been sprayed on roads in the winter to prevent road surfaces from freezing, and the salt thrown up by the driving of the vehicle adheres to the above-mentioned terminal connections inside the vehicle and absorbs moisture. This often results in salt water that enters the case and causes poor conductivity.

Also, if a gap occurs between the bottom of the case 1 and the flange 10, the synthetic resin 1 filled in the case 1
2 leaks from this gap, which is also unfavorable in terms of appearance.

Therefore, as a countermeasure, as shown in Figure 5,
It is conceivable to apply the sealant 14 to the outer circumferential base of the case 1 after the case 1 is installed.
Application No. 4 has the drawback of increasing material costs and work man-hours.

[Means for solving problems]

In view of the above points, the present invention aims to provide a mounting device for an automotive wiring terminal board that can prevent the case from lifting up without increasing the cost. It is characterized by a structure in which a claw piece is formed on the flange, and this claw piece is engaged with a ground plate fixed to the mounting flange.

〔Example〕

FIG. 1 is a cross-sectional view of the mounting portion of the grounding terminal plate.

The ground plate 9 fixed to the mounting flange 10 by spot welding has a central portion 9b fixed to the flange 10, and both end portions 9a and 9c are bent so as to have a gap with respect to the flange 10 surface. On the other hand, the ground terminal plate 7 is fixed to the end 9a with screws 8 as in the conventional device, and the case 1 is attached to the other end 9c so as to face the opening 1a on the bottom of the case.
A claw piece 1d provided integrally with the holder engages with the holder. End 9
The gap 15 between C and the flange 10 is formed to be somewhat smaller than the thickness of the claw 1d, and the tapered surface 1e formed at the tip of the claw 1d allows the claw 1d to close this gap 15.
Intermediately and easily engage with each other.

Therefore, the rod-shaped terminal 11 is caulked at the fixed portion of the terminal plates 5 and 6 for signal transmission, and the spacer portions 1b and 1c are crimped to the flanges 10, so that the peripheral portion of the bottom surface of the case 1 is lifted up. Even when subjected to strong force, the case 1 can remain in close contact with the flange 10 because the claw piece 1d engages with the ground plate 9.

In the above embodiment, the claw piece 1d is formed on the edge of the opening of the case 1 on the introduction side of the lead wire 4, but it may be formed on the edge of the opening on the opposite side (left side in FIG. 1). In short, a claw piece 1d is provided on the bottom of the case that is most likely to rise above the flange 10 surface when the case 1 is fixed by caulking or when the lead wire is pulled from the outside. All you have to do is make them engage.

〔effect〕

Since the present invention is as described above, it is possible to prevent the bottom surface of the case from lifting up by only partially changing the shape of the ground plate and the case 1 without requiring any new parts or work steps.

Therefore, it is possible to prevent moisture from entering the terminal connection portion and provide reliable protection without increasing costs.

[Brief explanation of drawings]

Fig. 1 is a sectional view of a main part of an embodiment of the present invention, Fig. 2 is an external view of a terminal attachment part in a conventional automobile fuel sender to which the present invention can be applied, and Fig. 3 is a sectional view taken along the line A-A in Fig. 2. , Figure 4 shows similar B
-B line sectional view, and FIG. 5 is a sectional view showing another conventional structure. 1...Terminal storage case, 1a...Opening, 1
b, 1c...Spacer part, 1d...Claw piece, 2,
3, 4... Lead wire, 5, 6, 7... Terminal board, 9
...Earth plate, 10...Mounting flange, 12...
Resin, 15...Gap.

Claims (1)

[Scope of utility model registration request] A terminal storage case is provided on the bottom with a spacer section for electrical insulation from the mounting flange and an opening for receiving a grounding plate protruding from this flange, and the grounding terminal plate provided at the tip of the lead wire is connected to the grounding terminal plate provided at the end of the lead wire. A terminal board for connecting to the board and for signal transmission is attached to the flange via the spacer part by caulking, and the terminal storage case is fixed to the flange, and the inside of the terminal storage case is filled with electrically insulating resin. A mounting device for an automotive wiring terminal board that covers a terminal connection part, wherein a claw piece is integrally formed in the terminal storage case so as to face the opening, and the claw piece is attached to a ground plate. A mounting device for a wiring terminal board for an automobile, characterized in that it is interposed and engaged in a gap with a flange.