KR102239702B1 - Expandable baffle for vehicle fuel tank - Google Patents

Abstract

The present invention relates to an expandable baffle for a fuel tank of a vehicle, wherein a plurality of sliding baffles are installed in a baffle body, and the sliding baffles expand to a surplus area of the fuel tank where the baffle body does not cover the flow of fuel after the baffle body is combined with the fuel tank, so that noise and vibration generated during the flow of fuel in the fuel tank can be reduced.

Description

Expandable baffle for vehicle fuel tank {EXPANDABLE BAFFLE FOR VEHICLE FUEL TANK}

The present invention relates to an expandable baffle for a fuel tank of a vehicle, and specifically, the size of the baffle as a sliding baffle is internally coupled to the baffle body and the baffle body is coupled to the fuel tank and then slides to the outside of the baffle body. It relates to an expandable baffle for a fuel tank of a vehicle that expands.

The engine of a vehicle is a device that converts thermal energy into mechanical rotational force by rotating the crankshaft using the explosive force generated by burning fuel in the combustion chamber.

As described above, the engine must be continuously supplied with fuel to be burned in the combustion chamber. In order to continuously supply the fuel, the vehicle must be provided with a fuel tank capable of storing a certain amount of fuel.

It is provided so that a baffle is installed in the inner space of the fuel tank. Here, the baffle provides resistance to the movement of the fuel, thereby suppressing the fluctuation of the fuel in the fuel tank as much as possible, thereby reducing the flow noise caused by the fuel flow.

Fuel tanks are usually made of steel and plastic, and in recent years, the use of plastic fuel tanks is increasing to reduce weight and improve fuel efficiency.

Plastic fuel tanks are largely manufactured through a melting process, an extrusion process, and a blow process.The melting process is a process in which a plastic material is heated to a high temperature to melt it into a molten resin. twin sheet), a process of extrusion molding into a parison of either cylindrical shape.In the blow process, the parison is put into a mold and high-pressure air is blown into the parison to form the parison into the shape of a fuel tank. It is a process of molding.

On the other hand, the baffle is inserted into the parison before blow molding of the parison, and is combined with the fuel tank while the blow molding proceeds.

As a result, there is a problem that noise and vibration are generated by the flow of fuel in the surplus space as the baffle cannot cover the flow of fuel in the fuel tank manufactured by the blow molding by the parison swelling. .

The matters described as the background art are only for enhancing an understanding of the background of the present invention, and should not be taken as acknowledging that they correspond to the prior art already known to those of ordinary skill in the art.

KR 10-2018-0167874 A

The present invention has been proposed to solve this problem, and when the injection-molded parison is blow-molded into a fuel tank, the baffle body covers the flow of fuel in the area of the fuel tank where the flow of fuel cannot be covered. It is intended to provide an expandable baffle for a fuel tank of a vehicle that mitigates noise and vibration generated when fuel flows.

In order to achieve the above object, the expansion baffle for a fuel tank of a vehicle of the present invention comprises: a baffle body fixedly coupled to an inner space of the fuel tank; And a sliding baffle slidably coupled to the baffle body; When the sliding baffle is moved to protrude to the outside of the baffle body, the sliding baffle fills the excess space between the baffle body and the fuel tank to reduce the flow sound of fuel passing through the excess space.

The baffle body is formed with a baffle hole having a predetermined size through the baffle body; It is characterized in that the sliding baffle is movably coupled to the inside and outside of the baffle hole to the edge portion forming the baffle hole.

The sliding baffle is characterized in that it is configured in a plurality of positions facing each other in the baffle body.

The sliding baffle is a horizontal plate; And a plurality of vertical plates protruding upward and downward of the horizontal plate; The vertical plate is characterized in that it is formed to be arranged at equal angles over the entire area of the horizontal plate.

A sliding hole through which the sliding baffle is movable is formed in the baffle body; At one end of the sliding baffle located inside the sliding hole, an inner flange having a size larger than that of the sliding hole is formed to be connected to the horizontal plate and the vertical plate; When the sliding baffle moves to protrude to the outside of the baffle body, the inner flange does not pass through the sliding hole and is caught in the baffle body, thereby restricting the outward movement of the baffle body.

In the sliding baffle, a stopper protrusion is formed to protrude at a portion spaced apart from the inner flange along the moving direction of the sliding baffle; When the sliding baffle moves to the outside of the baffle body and protrudes, the protruding position of the sliding baffle is fixed as the inner flange and the stopper protrusion contact the inner and outer sides of the baffle body.

A sliding hole through which the sliding baffle is movable is formed in the baffle body; A plurality of outer protrusions are formed at the other end of the sliding baffle located on the outside with respect to the sliding hole; When the sliding baffle is moved to be inserted into the baffle body, the outer protrusion does not pass through the sliding hole and is caught on the baffle body, thereby restricting the inward movement of the baffle body.

The outer protrusions are formed for each vertical plate located on the outside based on the sliding hole, and are formed to protrude upward and downward from the upper and lower ends of the vertical plate.

As coupled to the sliding baffle, the sliding baffle further includes an elastic clip positioned outside the baffle body by moving together when it is moved so as to protrude to the outside of the baffle body; It is characterized in that after the sliding baffle protrudes to the outside of the baffle body, it is possible to check whether the protruding state of the sliding baffle is normal by checking the position of the elastic clip.

The elastic clip is formed of a metal material, and the location of the elastic clip can be checked from the outside of the fuel tank through a metal detector.

It is characterized in that the baffle protrusions are formed to protrude upward and downward while intersecting in a direction perpendicular to each other on the upper and lower surfaces of the baffle body.

The baffle body is characterized in that a plurality of fuel passage holes are formed to reduce the flow sound while the fuel passes.

In an embodiment according to the present invention, a plurality of sliding baffles are installed in the baffle body, and after the baffle body is coupled to the fuel tank, the sliding baffle is extended to the surplus area of the fuel tank in which the baffle body cannot cover the flow of fuel. It has the effect of mitigating the noise and vibration generated during the flow of fuel.

In addition, since an elastic clip made of metal is mounted on the sliding baffle, it is possible to check the normal expansion of the sliding baffle through metal detection after the sliding baffle is expanded.

1 is a perspective view of an expandable baffle for a fuel tank of a vehicle according to an embodiment of the present invention;
2 is a perspective view before expansion of an expandable baffle for a fuel tank of a vehicle according to an embodiment of the present invention;
3 is a perspective view when an expansion baffle for a fuel tank of a vehicle according to an embodiment of the present invention is mounted on the fuel tank;
4 is a perspective view before the expansion baffle for the fuel tank of the vehicle according to the embodiment of the present invention is mounted on the fuel tank and expanded;
5 is a perspective view when a baffle for a fuel tank of a conventional vehicle is mounted on a fuel tank;
6 is a perspective view of an outer protrusion included in a sliding baffle among parts of an expandable baffle for a fuel tank of a vehicle according to an embodiment of the present invention;
7 is a perspective view of an inner flange included in a sliding baffle among parts of an expandable baffle for a fuel tank of a vehicle according to an embodiment of the present invention;
8 is a perspective view of a stopper protrusion included in a sliding baffle among parts of an expandable baffle for a fuel tank of a vehicle according to an embodiment of the present invention;
9 is a perspective view of a clip among parts of an expandable baffle for a fuel tank of a vehicle according to an embodiment of the present invention;
FIG. 10 is a perspective view when a clip is coupled to a sliding baffle among parts of an expandable baffle for a fuel tank of a vehicle according to an embodiment of the present invention;
11 is a side view of a part of an expandable baffle for a fuel tank of a vehicle according to an embodiment of the present invention when a clip is coupled to a sliding baffle.

Hereinafter, an expandable baffle for a fuel tank 100 of a vehicle according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

The expandable baffle for the fuel tank 100 of a vehicle according to an embodiment of the present invention is composed of a baffle body 200 and a sliding baffle 300 as shown in FIGS. 1 to 11. In addition, a clip coupled to the sliding baffle 300 may be further included, and the baffle body 200 is coupled to the fuel tank 100 when the parison is blow-molded.

Specifically, the baffle body 200 fixedly coupled to the inner space of the fuel tank 100; And a sliding baffle 300 coupled to the baffle body 200 so as to be slidably moved; When the sliding baffle 300 is moved so that it protrudes to the outside of the baffle body 200, the sliding baffle 300 fills the surplus space 110 between the baffle body 200 and the fuel tank 100 and passes through the surplus space 110. It is to reduce the flow sound of the fuel.

In the fuel tank 100, as the extruded parison is blow-molded and expanded, a surplus area of the fuel tank 100 that the baffle body 200 cannot cover the flow of fuel is formed, and the flow of fuel in the surplus area. In order to cover the sliding baffle 300 may be moved to the outside of the baffle body 200 to cover the flow of fuel in the excess space.

Accordingly, the baffle body 200 and the sliding baffle 300 may alleviate noise and vibration due to the flow of fuel while the fuel collides with the baffle body 200 and the sliding baffle 300 when the fuel flows.

3 to 5, the baffle of the fuel tank 100 is inserted into the extruded parison during the manufacturing process of the fuel tank 100, and the parinson is blow-molded into the fuel tank 100 while the fuel tank ( 100). Therefore, the size of the baffle is formed smaller than the size of the parison so as to be inserted into the parison. Therefore, the expandable baffle for the fuel tank 100 of the vehicle according to the embodiment of the present invention shown in FIG. 4 is inserted into the parison with the sliding body installed inside the baffle body 200, and the parison is inserted into the fuel tank ( 100) can be combined when blow-molded.

The baffle for the fuel tank 100 of the conventional vehicle shown in FIG. 5 does not alleviate the flow of fuel in an area that is larger than the parison †Ÿ among the inner area of the fuel tank 100 manufactured by blow molding the parison. I can't.

As shown in FIG. 3, the baffle body 200 with the sliding baffle 300 installed on the inside is coupled to the fuel tank 100, and the parison is blow-molded to expand the sliding baffle to the inner region of the fuel tank 100. 300 can be extended. Accordingly, there is an effect of reducing the flow of fuel in the inner region of the fuel tank 100 expanded by blow molding the parison.

On the upper and lower surfaces of the baffle body 200, the baffle protrusions 220 are formed to protrude upward and downward while intersecting in a direction orthogonal to each other.

The baffle body 200 can alleviate the flow when the fuel flows upward or downward, and the plurality of baffle protrusions 220 formed on the upper and lower surfaces of the baffle body 200 cross each other at right angles to form a partition. It is possible to mitigate the flow of fuel flowing in the direction or in the left and right directions. In addition, as the baffle protrusions 220 cross each other at right angles to form a partition, the strength and rigidity of the baffle body 200 may be enhanced. Accordingly, there is an effect of preparing for damage to the baffle due to external impact or flow of fuel.

A plurality of fuel passage holes 230 are formed in the baffle body 200 to reduce the flow sound while the fuel passes.

The fuel passage hole 230 through which the fuel flows may allow the fuel to flow upward or downward. Accordingly, fuel does not accumulate in the partition formed by the baffle body 200 and the baffle protrusion 220, so that the remaining amount of oil in the fuel tank 100 can be accurately checked, and when the oil flows upward or downward, it passes through the through hole. Some of the oil passes through the baffle body 200 so that noise and vibration generated when the oil strikes the baffle when flowing may be alleviated.

In the baffle body 200, a baffle hole 210 having a predetermined size is formed to pass through the baffle body 200; The sliding baffle 300 is coupled to the rim portion 211 forming the baffle hole 210 so as to be movable in and out of the baffle hole 210.

After the baffle body 200 is combined with the fuel tank 100, a space for mounting the fuel pump in the fuel tank 100 is required, and the baffle body 200 has a baffle hole 210 having a predetermined size. It is formed so as to penetrate and the fuel pump is positioned to be coupled to the fuel tank 100, and the sliding baffle 300 is inserted into the parison while being installed in the baffle hole 210 inside the baffle body 200, and the parison is As the fuel tank 100 is formed by blow molding, the space of the baffle hole 210 inside the baffle body 200 can be utilized.

A plurality of sliding baffles 300 are installed to face each other in the baffle body 200.

When the parison is molded into the fuel tank 100 through blow molding, the sliding baffle 300 is attached to the baffle body 200 in order to alleviate the noise and vibration when the fuel flows by covering the entire extended space. A plurality of pieces may be installed to face each other on the edge portion 211 forming the baffle hole 210.

The sliding baffle 300 includes a horizontal plate 310; And a plurality of vertical plates 320 protruding upward and downward of the horizontal plate 310; The vertical plate 320 is formed to be arranged at equal angles over the entire area of the horizontal plate 310.

The horizontal plate 310 of the sliding baffle 300 mitigates noise and vibration due to the flow of fuel while colliding with the fuel flowing upward or downward, and the vertical plate 320 collides with the fuel flowing horizontally and It can alleviate noise and vibration. In addition, as a plurality of horizontal plates are formed at equal intervals, the rigidity of the sliding baffle 300 can be increased as a whole, and noise and vibration caused by the flow of fuel can be uniformly reduced.

The baffle body 200 is formed with a sliding hole 240 through which the sliding baffle 300 is movable; An inner flange 340 having a size larger than the sliding hole 240 is formed at one end of the sliding baffle 300 located inside the sliding hole 240 to be connected to the horizontal plate 310 and the vertical plate 320 ; When the sliding baffle 300 moves to protrude to the outside of the baffle body 200, the inner flange 340 does not pass through the sliding hole 240 and is caught on the baffle body 200, so that the outside of the baffle body 200 Directional movement is constrained.

The sliding baffle 300 is inserted into the sliding hole 240, and the horizontal plate 310 and the vertical plate 320 pass through the sliding hole 240 so that the sliding baffle 300 can slide freely. It is possible to prevent the baffle from flowing up and down or side to side.

One end of the sliding baffle 300 is located inside the baffle body 200, and the other end is located outside the baffle body 200.

After the baffle body 200 is coupled to the fuel tank 100, the operator's hand or machine is put into the fuel pump hole (not shown) formed in the fuel tank 100 to mount the fuel pump inside the fuel tank 100. The sliding baffle 300 is extended to the outside of the baffle body 200. At this time, there is a fear that the sliding baffle 300 may be separated from the outside of the baffle body 200. To prepare for this, an inner flange 340 is provided at one end of the sliding baffle 300, and when the sliding baffle 300 is extended to the outside, the inner flange 340 is caught on the inner surface of the baffle body 200 and the sliding baffle 300 ) This baffle body 200 has the effect of restraining the movement in the outward direction to prevent the sliding baffle 300 from being separated outward.

A plurality of outer protrusions 330 are formed at the other end of the sliding baffle 300 located outside the sliding hole 240 with respect to the sliding hole 240; When the sliding baffle 300 is moved to be inserted into the baffle body 200, the outer protrusion 330 does not pass through the sliding hole 240 and is caught by the baffle body 200, so that the baffle body 200 The inward movement of is constrained.

The sliding baffle 300 installed and inserted into the sliding hole 240 is positioned in the fuel pump hole when inserted into the parison. At this time, there is a concern that the sliding baffle 300 may be separated from the inside of the baffle body 200 due to external shock or vibration. To prepare for this, a plurality of outer protrusions 330 are formed at the other end of the sliding baffle 300, and the sliding baffle 300 is separated into the inside of the baffle body 200 as the protrusions are caught on the outer surface of the baffle body 200. There is an effect that can prevent it from becoming.

The outer protrusions 330 are formed for each of the vertical plates 320 located on the outside with respect to the sliding hole 240, and are formed to protrude upward and downward from the upper and lower ends of the vertical plate 320.

As the outer protrusions 330 are formed for each vertical plate 320, the effect of preventing the sliding baffle 300 from being separated inward is increased, and the sliding baffle 300 is protruded upward and downward of the vertical plate 320. When inserted into the sliding hole 240, there is an effect of facilitating insertion.

In the sliding baffle 300, a stopper protrusion 350 is formed to protrude at a portion spaced apart from the inner flange 340 along the moving direction of the sliding baffle 300; When the sliding baffle 300 moves to the outside of the baffle body 200 and protrudes, the inner flange 340 and the stopper protrusion 350 contact the inner and outer sides of the baffle body 200, so that the sliding baffle 300 The protruding position of is fixed.

After the sliding baffle 300 is extended to the outside of the baffle body 200, the sliding baffle 300 must be fixed. In order to fix the sliding baffle 300, when the inner flange 340 contacts the inner surface of the rim 211 of the baffle body 200, the stopper protrusion 350 passes through the sliding hole 240 by forcibly fitting. And there is an effect of fixing the sliding baffle 300 as it is caught and supported on the outer surface of the baffle body 200.

As coupled to the sliding baffle 300, the sliding baffle 300 further includes an elastic clip 400 positioned outside the baffle body 200 by moving together when the sliding baffle 300 is moved so as to protrude to the outside of the baffle body 200; After the sliding baffle 300 protrudes to the outside of the baffle body 200, it is possible to check whether the protruding state of the sliding baffle 300 is normal through the positioning of the elastic clip 400.

9 to 11, the elastic clip 400 may be preferably coupled to the other end of the sliding baffle 300, and is also mounted on the sliding baffle 300 by elasticity to facilitate the mounting operation. .

The elastic clip 400 is formed of a metal material, and the location of the elastic clip 400 can be confirmed from the outside of the fuel tank 100 through a metal detector.

When the sliding baffle 300 is expanded, it is expanded inside the fuel tank 100 so that normal expansion cannot be confirmed with the naked eye, so an elastic clip 400 made of a metal material is mounted on the other end of the sliding baffle 300 and slides. As the baffle 300 is expanded, it is moved, and then the position of the clip through the metal detector is checked to confirm the normal expansion of the sliding baffle 300. In addition, a defective product in which the sliding baffle 300 is not normally expanded can be selected and reassembled or discarded, thereby improving the quality of the product.

As described above, in the embodiment of the present invention, a plurality of sliding baffles 300 are installed in the baffle body 200 so that the baffle body 200 is coupled with the fuel tank 100 and then the sliding baffle 300 is baffled. The main body 200 has an advantage of mitigating noise and vibration generated when the fuel flows in the fuel tank 100 by expanding to an excess area of the fuel tank 100 that cannot cover the flow of fuel.

In addition, since the sliding baffle 300 is equipped with an elastic clip 400 made of a metal material, the sliding baffle 300 has the advantage of being able to check the normal expansion of the sliding baffle 300 through metal detection after the expansion.

Although shown and described in relation to specific embodiments of the invention, it is common in the art that the present invention can be variously improved and changed within the scope of the technical spirit of the invention provided by the following claims. It will be self-evident to those who have the knowledge of.

100: fuel tank 110: surplus space
200: baffle body 210: baffle hole
211: border 220: baffle protrusion
230: fuel passage hole 240: sliding hole
300: sliding baffle 310: horizontal plate
320: vertical plate 330: outer protrusion
340: inner flange 350: stopper protrusion
400: elastic clip

Claims (12)

A baffle body fixedly coupled to the internal space of the fuel tank; And
And a sliding baffle slidably coupled to the baffle body;
When the sliding baffle is moved so that it protrudes to the outside of the baffle body, the sliding baffle fills the excess space between the baffle body and the fuel tank to reduce the flow sound of fuel passing through the excess space.
The baffle body is formed with a baffle hole having a predetermined size through the baffle body;
An expandable baffle for a fuel tank of a vehicle, characterized in that a sliding baffle is movably coupled to an edge portion forming a baffle hole so as to be movable in and out of the baffle hole. delete The method according to claim 1,
The sliding baffle is an expandable baffle for a fuel tank of a vehicle, characterized in that a plurality of sliding baffles are configured at positions facing each other in the baffle body. The method according to claim 1,
The sliding baffle is a horizontal plate; And
And a plurality of vertical plates protruding upward and downward of the horizontal plate;
The vertical plate is an expandable baffle for a fuel tank of a vehicle, characterized in that the vertical plate is formed to be arranged at equal angles over the entire area of the horizontal plate. The method of claim 4,
A sliding hole through which the sliding baffle is movable is formed in the baffle body;
At one end of the sliding baffle located inside the sliding hole, an inner flange having a size larger than that of the sliding hole is formed to be connected to the horizontal plate and the vertical plate;
When the sliding baffle moves to protrude to the outside of the baffle body, the inner flange does not pass through the sliding hole and is caught in the baffle body, thereby restricting the outward movement of the baffle body. The method of claim 5,
In the sliding baffle, a stopper protrusion is formed to protrude at a portion spaced apart from the inner flange along the moving direction of the sliding baffle;
When the sliding baffle moves to the outside of the baffle body and protrudes, the protruding position of the sliding baffle is fixed as the inner flange and the stopper protrusion contact the inner and outer sides of the baffle body. . The method of claim 4,
A sliding hole through which the sliding baffle is movable is formed in the baffle body;
A plurality of outer protrusions are formed at the other end of the sliding baffle located on the outside with respect to the sliding hole;
Expansion baffle for fuel tank of a vehicle, characterized in that when the sliding baffle moves into the inside of the baffle body, the outer protrusion does not pass through the sliding hole and is caught in the baffle body, thereby restricting the inward movement of the baffle body. . The method of claim 7,
The outer protrusion is formed for each vertical plate located on the outside with respect to the sliding hole, and is formed to protrude upward and downward from the upper and lower ends of the vertical plate. The method according to claim 1,
As coupled to the sliding baffle, the sliding baffle further includes an elastic clip positioned outside the baffle body by moving with it when it is moved so as to protrude to the outside of the baffle body;
An expandable baffle for a fuel tank of a vehicle, characterized in that after the sliding baffle protrudes outward from the baffle body, it is possible to check whether the protruding state of the sliding baffle is normal by checking the position of the elastic clip. The method of claim 9,
The elastic clip is formed of a metal material, and the location of the elastic clip can be confirmed from the outside of the fuel tank through a metal detector. The method according to claim 1,
An expandable baffle for a fuel tank of a vehicle, wherein the baffle protrusions are formed to protrude upward and downward while intersecting in a direction perpendicular to each other on the upper and lower surfaces of the baffle body. The method according to claim 1,
An expandable baffle for a fuel tank of a vehicle, characterized in that a plurality of fuel passage holes are formed in the baffle body to reduce a flow sound while the fuel passes.

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