JPH0110433Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an in-tank pump that is installed in a vehicle fuel tank and supplies fuel filled in the tank to an engine.

In-tank fuel pump 1 as shown in Figure 1
is attached to the hollow bottom of the fuel tank 101 with a bracket 3.

As shown in Fig. 2, this in-tank type pump has the bottom of the pump 1 mounted on the lower horizontal part of the bracket 3, the filter 6 at the suction port almost in contact with the bottom of the tank, and discharge onto the top surface 5 of the pump body 4. bipolar terminals 8 connected to the outlet 7 and the pump motor;
9, a positive terminal 11 and a negative terminal 10 are provided on the plate 2, one terminal 9 is connected to the positive terminal 11 by a lead wire 13, the other terminal 8 is connected to the negative terminal 10, and One end of an oil-resistant hose 14 is fitted onto the discharge port 7 and tightened with a hose clip 15, and a tube 16 connected to the hose 14 passes through the plate 2 and projects upward. However, since the pump body 4 is small and is formed in a vertical shape suitable for insertion and installation into the tank 101, the upper surface 5
The discharge port 7 and the terminals 8 and 9 are placed close to each other. Therefore, although there are almost no problems with the lead wire 12, the exposed part of the lead wire 13 connected to the terminal 9 comes into contact with the hose clip 15 due to vibration etc. and short circuits, making it impossible to rotate the motor inside the pump body 4. . In order to eliminate this drawback, an insulating boot 18 shown in FIG. 3 has conventionally been fitted into the connection portion, but in order to assemble the boot 18, it must be fitted onto the lead wire 13 in advance, which reduces work efficiency. Unfortunately, it takes a lot of time to assemble. In the present invention, this is abolished, and the hose clip itself is fitted from the side after the clip is attached, and rotation is prevented by the clip itself.

As shown in FIG. 4, the hose clip 15 has a normal shape and is made of an elastic circular spring material with tabs 15a, 15a protruding from both ends.

5 and 6 show an insulating cover 21 of the present invention, which is formed into an annular shape and has a protrusion 22 on the inner periphery for housing the knobs 15a, 15a, and a vertical groove is formed in a part of the annular part. 23,
The molding material must have oil resistance and elasticity, and a synthetic resin suitable for these properties is appropriate.

As shown in FIG. 2, the present invention is to attach the opening groove 23 of the insulating cover 21 to the hose clip 1 after the hose 14, hose clip 15 and lead wire 13 have been installed.
5 from the side, and at the same time as fitting, the knobs 15a, 15a are fitted to the protrusion 22 to prevent rotation (FIG. 7).

The present invention has the structure clarified above,
By fitting the insulating cover 21 into the hose clip 15 that protrudes the knobs 15a, 15a,
This prevents the bare part of the lead wire 13 from coming into contact with the clip and causing a short circuit, and the cover 2
1, a protrusion 22 on the inner circumference that accommodates the knobs 15a, 15a to prevent rotation, and a hose clip 1.
5 has an open groove 23 that allows the clip to be inserted from the side after it is attached, making it easy to insert and prevent rotation, making it extremely easy to assemble the clip to electrically insulate it. It has the effect of

[Brief explanation of the drawing]

FIG. 1 is a cutaway side view schematically showing how the in-tank fuel pump 1 is attached to the fuel tank 101;
2 is a side view of the fuel pump 1, FIG. 3 is a partially cutaway side view of a conventionally used boot, and FIG. 4 is a side view of the fuel pump 1.
5 is a perspective view of the insulating cover 21 of the present invention, FIG. 6 is a plan view thereof, and FIG. 7 is a cutaway side view showing how the insulating cover 21 is fitted. 5...Top surface, 7...Discharge port, 9...Terminal, 14
... Hose, 15 ... Scrip, 15a ... Knob, 21 ... Insulating cover, 22 ... Protrusion,
23...Open ditch.

Claims (1)

[Scope of utility model registration request] A motor terminal 9 and a discharge port 7 are provided on the upper surface 5,
On the outer periphery of the hose 14 whose one end is fitted to the discharge port 7,
In an in-tank fuel pump equipped with a hose clip 15 that projects a knob 15a, the protrusion 22 that accommodates the knob 15a is formed into an annular shape on the inner periphery, and is fitted vertically into a part of the annular shape. An in-tank fuel insulating hose clip, characterized in that an insulating cover 21 provided with an open groove 23 is press-fitted into the hose clip 15 from the open groove 23, and the protrusion 22 is fitted into the knob 15a. pump.