CN210258001U

CN210258001U - Built-in breakwater of fuel tank

Info

Publication number: CN210258001U
Application number: CN201920879759.XU
Authority: CN
Inventors: 刘颖星; 王敬超; 朱天楷; 黄欢; 赵承; 邹志东; 王佳
Original assignee: Dongfeng Yapp Automotive Parts Co ltd
Current assignee: Dongfeng Yapp Automotive Parts Co ltd
Priority date: 2019-06-12
Filing date: 2019-06-12
Publication date: 2020-04-07
Anticipated expiration: 2029-06-12

Abstract

The utility model relates to an oil tank technical field discloses a built-in wave breaker of fuel tank, the built-in wave breaker of fuel tank is integrated into one piece spare, including base plate, peripheral baffle and welding boss, peripheral baffle sets up the edge at the base plate perpendicularly, the welding boss sets up the butt joint with fuel tank welding boss on the surface of base plate. The internal washboard of the fuel tank of the utility model is integrally formed by adopting an injection molding process, which is simpler than the process of an assembled washboard, and the shape of the whole box-type washboard is more suitable for the whole shrinkage deformation after the washboard is welded with the fuel tank; the box structure composed of the base plate and the peripheral baffle plate can effectively reduce the noise generated by the oil tank during the sloshing of the oil liquid in the oil tank during the rapid acceleration and the rapid deceleration.

Description

Built-in breakwater of fuel tank

Technical Field

The utility model relates to an oil tank technical field specifically indicates a built-in wave breaker of fuel tank.

Background

With the rapid development of the automobile industry, the intelligence, safety, environmental protection and economy of automobiles are greatly improved, and the requirements of passengers on the comfort of the automobiles are increasingly strict. The noise of the automobile is affected by various factors, such as the noise of the body, the noise of the tires, the noise of the engine and accessories, the noise of the transmission system, and the like. With the development of automobile component technology, these traditional noises can be controlled at a relatively low level, and the fuel tank sloshing noise becomes more prominent, and gradually attracts people's attention, especially in some medium-high-grade, HEV and PHEV models. During the acceleration and deceleration or rapid turning process of the automobile, fuel in the fuel tank can generate impact noise on the inner wall of the fuel tank and parts mounted on the fuel tank due to inertia, and is easy to be detected by passengers. In order to continuously improve the competitiveness of automobile brands, the shaking noise of a fuel tank is taken as an object of important attention and evaluation in the development of a whole automobile factory.

To reduce noise, fuel tank construction is typically modified in two ways: firstly, a buffer structure such as a kiss-off structure is added in the fuel tank, so that the fuel in a moving state can be blocked, the moving speed of the fuel is changed, the kinetic energy of the fuel is attenuated, the effect is obvious, the position selection is limited, the performance of the fuel tank is affected, in addition, the difficulty of mold development is increased, and the project development cost is increased; and secondly, welding a wave-proof plate in the oil tank.

The fuel tank is placed the breakwater and is the most direct effective mode of solving fuel tank fuel and rocking the noise, and the bigger the breakwater is, the more can alleviate the fuel tank rock the noise problem. But due to the limitation of the production process, the larger the wave-proof plate, the more difficult the production process is to realize. Therefore, a breakwater is required to solve the above problems.

Disclosure of Invention

An object of the utility model is to provide a built-in wave guard plate of fuel tank can effectively alleviate rocking noise of fuel tank.

In order to achieve the above object, the utility model discloses a built-in wave guard plate of fuel tank is integrated into one piece spare, including base plate, peripheral baffle and welding boss, peripheral baffle sets up the edge at the base plate perpendicularly, the welding boss sets up the butt joint with fuel tank welding boss on the surface at the base plate.

Preferably, reinforcing ribs are arranged on the substrate, the peripheral baffle plate and the boundary of the substrate and the peripheral baffle plate in a criss-cross manner.

Preferably, the substrate is provided with a substrate hole, and the peripheral baffle is provided with a baffle hole.

Preferably, the outer wall of the welding boss is stepped.

Preferably, the inner wall of the welding boss has a certain inclination angle.

Preferably, four arc-shaped elastic sheets are arranged on the periphery of the welding boss.

As a preferred scheme, any one of the built-in breakwaters of fuel tanks is characterized in that: the end face of the welding boss is a welding face, and the welding face is a splicing face distributed with bulges.

Preferably, the welding bosses are disposed on an upper surface and a lower surface of the substrate, and the welding surface of the upper surface and the welding surface of the lower surface are symmetrically disposed with respect to the substrate.

The utility model has the advantages that: the internal washboard of the fuel tank of the utility model is integrally formed by adopting an injection molding process, which is simpler than the process of an assembled washboard, and the shape of the whole box-type washboard is more suitable for the whole shrinkage deformation after the washboard is welded with the fuel tank; the box structure composed of the base plate and the peripheral baffle plate can effectively reduce the noise generated by the oil tank during the sloshing of the oil liquid in the oil tank during the rapid acceleration and the rapid deceleration.

Drawings

Fig. 1 is a perspective view of a breakwater in a fuel tank according to a preferred embodiment of the present invention.

Fig. 2 is a front view of fig. 1.

Fig. 3 is a top view of fig. 1.

Fig. 4 is an enlarged view of fig. 3 at a.

Fig. 5 is a sectional view of B-B of fig. 3.

The components in the figures are numbered as follows: the base plate 10 (wherein, the base plate hole 11), the peripheral baffle 20 (wherein, the baffle hole 21), the welding boss 30 (wherein, the welding face 31, the shell fragment 32), the strengthening rib 40.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and specific embodiments.

Referring to fig. 1, the internal breakwater of the fuel tank according to the preferred embodiment of the present invention is an integrally formed component, and includes a base plate 10, a peripheral baffle 20, a welding boss 30 and a reinforcing rib 40, wherein the peripheral baffle 20 is vertically disposed at the edge of the base plate 10, the welding boss 30 is disposed on the upper and lower surfaces of the base plate 10 and is abutted to the welding boss of the fuel tank, and the reinforcing rib 40 is disposed on the base plate 10, the peripheral baffle 20 and the junction between the base plate 10 and the peripheral baffle 20.

Referring to fig. 2 and 3, the base plate 10 has the base plate holes 11 distributed thereon, and the peripheral baffle 20 has the baffle holes 21 distributed thereon, so as to reduce the overall weight and enhance the toughness of the breakwater.

Referring to fig. 4, the welding bosses 30 are disposed on the upper and lower surfaces of the base plate 10, and the welding bosses 30 are abutted against the welding bosses of the fuel tank to fix the breakwater in the fuel tank. The outer wall of the welding boss 30 is in a step shape, so that the damage to the breakwater structure caused by the positive and negative pressure of the fuel tank can be adapted. When the deformation of the fuel tank is large and the welding bosses 30 bear large tensile force or pressure respectively, the impact of the inner wall of the fuel tank on the wave-proof plate structure can be relieved by the stepped structure, the structural strength of the wave-proof plate is enhanced, and meanwhile, the deformation of the fuel tank can be adapted.

As shown in fig. 5, the inner walls of the upper and lower welding bosses 30 have a certain inclination angle, which is beneficial to demolding (i.e. having a draft angle) of the breakwater during molding, and increases the strength of the upper and lower welding bosses 30 of the breakwater, thereby preventing the welding bosses 30 from being broken due to stress concentration.

The end face of the welding boss 30 is a welding face 31, a plurality of convex point-shaped insertion faces with circular bulges are distributed on the welding face 31, the contact area between the welding face 31 of the three welding bosses 30 and a parison is increased, and the connection strength between the welding face 31 and the inner wall of the fuel tank can be increased after the welding face 31 of the three welding bosses 30 is cooled. As shown in fig. 2, the upper and lower welding surfaces 31 of the right welding boss 30 are symmetrical with respect to the base plate 10, and the symmetrical structure facilitates uniform stress when the welding tooling of the breakwater performs welding on the boss of the compression ignition fuel tank during blow molding, so that the fuel tank and the breakwater can be better integrally molded.

The four arc-shaped spring pieces 32 are arranged on the periphery of the welding boss 30, so that the elasticity of the wave-proof plate can be enhanced. When the deformation of the fuel tank is large and the upper and lower welding bosses 30 of the base plate 10 bear large tensile force or pressure, the elastic sheet 32 can adapt to the deformation of the tank body, so that the breakwater caused by stress concentration is avoided.

The reinforcing ribs 40 are distributed criss-cross at the base plate 10, the peripheral baffle plate 20 and the joint of the base plate 10 and the peripheral baffle plate 20, and can meet the strength requirement after shrinkage deformation.

The welding boss 30 is used for welding with the fuel tank, two opposite-top welding bosses 30 are arranged on the upper surface and the lower surface of the base plate 10, and the upper-lower opposite-top structure can enable the welding of the washboard tool to be evenly stressed when the welding boss of the compression ignition fuel tank is opposite to the welding boss of the compression ignition fuel tank during blow molding, and facilitates welding of the washboard and the inner surface of the fuel tank.

The internal washboard of the fuel tank of the utility model is integrally formed by adopting an injection molding process, which is simpler than the process of an assembled washboard, and the shape of the whole box-type washboard is more suitable for the whole shrinkage deformation after the washboard is welded with the fuel tank; the box-type structure formed by the base plate 10 and the peripheral baffle 20 can effectively reduce the noise generated by the sloshing of oil in the oil tank during rapid acceleration and rapid deceleration of the oil tank.

Compared with the prior art, the utility model discloses a built-in wave guard plate of fuel tank has following advantage at least: the box-type breakwater formed by the base plate and the peripheral baffle plate in the fuel tank built-in breakwater of the utility model has larger volume, can play an obvious effect on the shaking of oil in the fuel tank, and can lighten the noise generated by the shaking of the oil compared with the traditional breakwater with single chip type and small volume; the utility model discloses a welding surface is symmetrical structure about welding boss in the built-in wave breaker of fuel tank, and the atress is even when the blow molding welding wave breaker frock is to compression ignition oil tank welding boss to upper and lower symmetrical structure convenience, makes fuel tank and wave breaker can better integrated into one piece, and more traditional asymmetric structure is better debugs when the oil tank blow molding, and the qualification rate is high, practices thrift oil tank debugging cycle and cost greatly.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a built-in breakwater of fuel tank which characterized in that: the built-in wave guard plate of fuel tank is integrated into one piece spare, including base plate (10), peripheral baffle (20) and welding boss (30), peripheral baffle (20) set up perpendicularly the edge of base plate (10), welding boss (30) set up on the surface of base plate (10) with fuel tank welding boss butt joint.

2. The fuel tank internal breakwater according to claim 1, characterized in that: reinforcing ribs (40) are arranged on the substrate (10), the peripheral baffle (20) and the boundary of the substrate (10) and the peripheral baffle (20) in a criss-cross mode.

3. The breakwater in a fuel tank according to claim 2, characterized in that: the base plate (10) is provided with a base plate hole (11), and the peripheral baffle plate (20) is provided with a baffle plate hole (21).

4. The fuel tank internal breakwater according to claim 1, characterized in that: the outer wall of the welding boss (30) is in a step shape.

5. The fuel tank internal breakwater according to claim 1, characterized in that: the inner wall of the welding boss (30) has a certain inclination angle.

6. The fuel tank internal breakwater according to claim 1, characterized in that: four arc-shaped elastic sheets (32) are arranged on the periphery of the welding boss (30).

7. The in-fuel tank breakwater according to any one of claims 1 to 6, characterized in that: the end face of the welding boss (30) is a welding face (31), and the welding face (31) is a splicing face distributed with bulges.

8. The fuel tank internal breakwater according to claim 7, characterized in that: the welding bosses (30) are arranged on the upper surface and the lower surface of the substrate (10), and the welding surface (31) of the upper surface and the welding surface (31) of the lower surface are symmetrically arranged relative to the substrate (10).