CN216709015U

CN216709015U - Built-in reinforcement of plastic fuel tank and plastic fuel tank

Info

Publication number: CN216709015U
Application number: CN202220240337.XU
Authority: CN
Inventors: 姜林; 高德俊; 吕昊; 苏卫东; 何月雯
Original assignee: Yapp Automotive Parts Co Ltd
Current assignee: Yapp Automotive Parts Co Ltd
Priority date: 2022-01-29
Filing date: 2022-01-29
Publication date: 2022-06-10
Anticipated expiration: 2032-01-29

Abstract

The application discloses a built-in reinforcement of a plastic fuel tank and the plastic fuel tank, wherein the built-in reinforcement comprises an integrally formed middle part, end parts at two ends of the middle part and transition parts respectively arranged between the middle part and the two end parts; the middle portion is plate-shaped, and an outer edge of the middle portion exceeds an outer edge of the transition portion and an outer edge of the end portion in a direction perpendicular to a center line connecting the two end portions. This application unites two into one built-in reinforcement and breakwater, has improved space utilization on the compressive property that satisfies the oil tank and the performance of making an uproar that falls the basis, provides bigger degree of freedom for the design of other built-in components to integrated into one piece technology greatly reduced manufacturing cost, improved the market competition of plastic fuel tank.

Description

Built-in reinforcement of plastic fuel tank and plastic fuel tank

Technical Field

The application relates to the technical field of fuel tanks, in particular to a built-in reinforcement of a plastic fuel tank and the plastic fuel tank.

Background

With the development of automobile electromotion, a large number of new energy automobiles enter the market. A built-in reinforcement is required to support the box body in the plastic fuel tank of the hybrid electric vehicle so as to improve the pressure resistance of the plastic fuel tank. Meanwhile, under the pure electric running working condition, an engine of the hybrid electric vehicle does not work, the environmental noise is reduced at the moment, and the noise generated by fuel shaking in the fuel tank is the main noise of the vehicle, so that higher requirements for reducing the noise of the fuel tank are provided.

Based on the situation, because other parts are required to be arranged in the plastic fuel tank besides the built-in reinforcement and the breakwater, the built-in reinforcement of the plastic fuel tank occupies too much space, the design limitation of each part is improved, the design and manufacturing difficulty is increased, the cost of the plastic fuel tank is improved due to the addition of the built-in reinforcement and the breakwater, and the market competitiveness of the plastic fuel tank is reduced.

SUMMERY OF THE UTILITY MODEL

The application provides a built-in reinforcement and plastic fuel tank of plastic fuel tank unites two into one built-in reinforcement and breakwater, has improved space utilization on the compressive property that satisfies the oil tank and the performance of making an uproar that falls basis, provides bigger degree of freedom for the design of other built-in to integrated into one piece technology greatly reduced manufacturing cost, improved plastic fuel tank's market competition.

The application provides a built-in reinforcement of a plastic fuel tank, which comprises an integrally formed middle part, end parts at two ends of the middle part and transition parts respectively arranged between the middle part and the two end parts;

the middle portion is plate-shaped, and an outer edge of the middle portion exceeds an outer edge of the transition portion and an outer edge of the end portion in a direction perpendicular to a center line connecting the two end portions.

Preferably, a wave-proof structure is arranged on the middle part.

Preferably, the transition portion is a hollow structure.

Preferably, at least one set of connecting structures is provided on the middle portion.

Preferably, the thickness of the middle portion is 2-8 mm.

Preferably, the middle part comprises a first area sandwiched between the two transition parts and second areas on both sides of the first area;

the second region has a length greater than that of the first region in a direction parallel to a center line of the both end portions.

Preferably, the outer layer of the end part is provided with an encapsulating layer.

Preferably, the outer end face of the end portion is provided with a plurality of housing connection portions.

The application also provides a plastic fuel tank, wherein the inner cavity of the plastic fuel tank is provided with a plurality of built-in reinforcements, and the middle parts of the adjacent built-in reinforcements are different in orientation.

Preferably, at least one group of connecting structures is arranged on the middle part;

the built-in reinforcement is used as a first built-in part, the inner cavity of the plastic fuel tank is further provided with at least one second built-in part, and the second built-in part is connected with the first built-in part through a connecting structure.

Other features of the present application and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and together with the description, serve to explain the principles of the application.

FIG. 1 is a perspective view of a built-in reinforcement for a plastic fuel tank as provided herein;

FIG. 2 is a front elevational view of the internal reinforcement of the plastic fuel tank provided herein;

FIG. 3 is a side view of the internal reinforcement of the plastic fuel tank provided herein.

Detailed Description

Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

The application provides a built-in reinforcement and plastic fuel tank of plastic fuel tank unites two into one built-in reinforcement and breakwater, has improved space utilization on the compressive property that satisfies the oil tank and the performance of making an uproar that falls basis, provides bigger degree of freedom for the design of other built-in to integrated into one piece technology greatly reduced manufacturing cost, improved plastic fuel tank's market competition. In addition, this application sets up connection structure on built-in reinforcement for connect other built-in components, make the spatial layout of the built-in component of plastic fuel tank compacter. The directions of wave-resistant structures on adjacent built-in reinforcements in the plastic fuel tank are different, so that shaking noises in multiple directions are reduced, and a better noise reduction effect is achieved.

Example one

As shown in fig. 1 to 3, the present application provides a built-in reinforcement for a plastic fuel tank including a central portion 10 formed integrally, end portions 20 at both ends of the central portion, and transition portions 30 respectively provided between the central portion 10 and the end portions 20.

The outer layer of the end portion 20 is provided with an encapsulating layer, as shown in fig. 1 and 3, and the transition portion 30 is provided with a positioning hole 31 for positioning the encapsulating layer during encapsulation.

The outer end face of the encapsulating layer (i.e. the end face far away from the transition part 30) is provided with a plurality of shell connecting parts 21, when the built-in reinforcement is installed on the plastic fuel tank, the shell connecting parts 21 are melted by the inner wall of the fuel tank with high temperature, and the end part 20 and the inner wall of the fuel tank are welded together after the shell connecting parts reach a molten state.

As one example, the shell coupling portion 21 includes a plurality of fused particles, as shown in fig. 1-3.

As an example, the middle portion 10, the end portions 20 and the transition portions 30 are plastic members and are made of POM, PA, PPA, PBT, PPS, PEEK, etc.

As an example, the middle portion, the end portions and the transition portion are integrally formed by an injection molding, extrusion molding or blow molding process.

It will be appreciated that other materials, such as metals, may be used for the intermediate section 10, the end sections 20 and the transition sections 30.

The housing connection portion 21 may be made of High Density Polyethylene (HDPE), or may be made of another material that can be connected to the housing of the plastic fuel tank.

As shown in fig. 3, the middle portion 10 has a plate shape. Preferably, the thickness of the central portion 10 is 2-8 mm. More preferably, the thickness of the middle portion 10 is 2-4mm, so as to achieve light weight and low cost on the basis of ensuring the noise reduction function.

The outer edge of the middle portion 10 exceeds the outer edge of the transition portion 30 and the outer edge of the end portion 20 in a direction perpendicular to the center line of the two end portions.

As an example, as shown in fig. 1 and 2, the middle portion 10 has a substantially rectangular plate shape, a direction of a center line of both end portions is shown as a vertical direction, and a direction perpendicular to the center line is shown as a horizontal direction. In the horizontal direction, the dimension of the middle portion 10 is larger than the horizontal dimension of the end portions 20 and the transition portions, i.e., both the left and right side edges of the middle portion 10 protrude beyond the outer edges of the end portions 20 and the transition portions 30.

It will be appreciated that the profile of the central portion 10 may be other shapes, such as circular.

The middle part 10 is provided with a wave-proof structure. As an example, as shown in fig. 1-2, the middle portion 10 includes a first region 11 sandwiched between two transition portions and second regions 12 on both sides of the first region 11, the second regions 12 have a length greater than that of the first region 11 in a direction parallel to a central line connecting the two end portions (i.e., in a vertical direction), and the second regions 12 have a wave-proof structure. The first area 11 serves as a supporting structure for the plastic fuel tank, the second area protrudes from the transition part 30 and the end part 20, the wave-proof structure arranged on the second area with larger size can effectively prevent fuel oil around the built-in reinforcement from shaking, and the structural design can simultaneously meet the supporting and noise reduction effects.

As one example, the wave structures are wave holes, as shown in fig. 1-2. It is understood that the wave-protection structure can be other known wave-protection structures, and the wave-protection structure can be designed into different shapes and sizes according to the internal space and the requirement of the fuel tank.

As shown in fig. 1-2, a plurality of ribs are provided between the first region 11 and the transition portion 30 to increase the overall strength of the built-in reinforcement.

Preferably, the transition portion 30 is a hollow structure, which is advantageous for the light weight of the fuel tank.

Preferably, at least one group of connecting structures is arranged on the middle part 10, and preferably, the connecting structures are arranged on the first area 11, so that on one hand, the connecting structures play a role of reinforcing ribs for the middle part, and on the other hand, the connecting structures can also be connected with other built-in parts to realize the integration of the built-in parts.

It can be understood that the connecting structure can be various existing structures, such as a T-shaped clamping groove, a wedge-shaped protrusion, a wedge-shaped groove and the like, and the middle part can be connected with other built-in parts.

Example two

On the basis of the built-in reinforcing parts, the plastic fuel tank is characterized in that a plurality of built-in reinforcing parts are installed in the inner cavity of the plastic fuel tank, the middle parts 10 of the adjacent built-in reinforcing parts are different in orientation, namely the orientations of the wave-resisting structures are different, and the plastic fuel tank is used for carrying out noise reduction treatment on fuel oil shaking in different directions, so that the overall noise reduction effect of the plastic fuel tank is optimal.

Because the connecting structure is arranged in the middle of the built-in reinforcement (as the first built-in part), the connecting structure can be connected with other built-in parts (such as a bracket, a valve and the like, as the second built-in part), so that the other built-in parts and the built-in reinforcement are integrated together, and the space utilization rate of the plastic fuel tank is improved.

Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present application. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the present application. The scope of the application is defined by the appended claims.

Claims

1. The built-in reinforcement of a kind of plastic fuel tank, characterized by, including the middle part formed integrally, end of both ends of said middle part and setting up the transition part between said middle part and two said end separately;

the middle part is plate-shaped, and the outer edge of the middle part exceeds the outer edge of the transition part and the outer edge of the end part in the direction perpendicular to the central connecting line of the two end parts.

2. The built-in reinforcement of a plastic fuel tank as set forth in claim 1, wherein a wave-proof structure is provided on said middle portion.

3. The built-in reinforcement of a plastic fuel tank as set forth in claim 1 or 2, wherein said transition portion is of a hollow structure.

4. The built-in reinforcement of a plastic fuel tank as set forth in claim 1, wherein at least one set of connecting structures is provided on said central portion.

5. The built-in reinforcement of a plastic fuel tank as set forth in claim 1, wherein the thickness of the middle portion is 2 to 8 mm.

6. The built-in reinforcement of a plastic fuel tank as set forth in claim 1, wherein said middle portion includes a first region sandwiched between two of said transition portions and a second region on both sides of said first region;

the second region has a length greater than the first region in a direction parallel to a central line connecting the two end portions.

7. The built-in reinforcement of a plastic fuel tank as set forth in claim 1 or 2, wherein an outer layer of the end portion is provided with an encapsulating layer.

8. The built-in reinforcement of a plastic fuel tank as set forth in claim 7, wherein a plurality of shell connection portions are provided on an outer end surface of said end portion.

9. A plastic fuel tank, characterized in that a plurality of built-in reinforcing members as recited in any one of claims 1 to 8 are installed in an inner cavity of the plastic fuel tank, and the direction of the central portions of the adjacent built-in reinforcing members is different.

10. The plastic fuel tank of claim 9 wherein said middle portion has at least one set of connection structures;

the built-in reinforcement is used as a first built-in part, at least one second built-in part is further arranged in the inner cavity of the plastic fuel tank, and the second built-in part is connected with the first built-in part through the connecting structure.