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Fuel tank molding rigid component and fuel tank molding method

A molding method and fuel tank technology, applied in the fields of fuel tank forming rigid components, fuel tank forming rigid components and fuel tank forming, can solve problems affecting the safety performance of fuel tanks, reduce the effective volume of fuel tanks, increase the weight of fuel tank bodies, etc., and achieve overall structural design Ingenious, compact and stable structure

Active Publication Date: 2018-05-01
YAPP AUTOMOTIVE PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Plastic fuel tank in high temperature environment, due to the reduction of plastic material strength, higher pressure makes the fuel tank deformation is relatively large, affecting the safety performance of the fuel tank
In the design structure of the fuel tank, in order to increase the rigidity of the body, the kiss-off structure is mainly adopted at present, such as figure 1 As shown, but such a structure reduces the effective volume of the fuel tank, the molding is prone to defects, increases the weight of the fuel tank body, wastes raw materials, and the strength that this structure can provide is limited; and with the development of the economy, the environmental protection department proposes to the fuel tank More stringent requirements, therefore, on the premise of meeting customer requirements, improving the freedom of setting the fuel tank, and how to improve the sealing of the fuel tank and reduce the volatilization and leakage of fuel have become technical issues that have been continuously studied by those skilled in the art

Method used

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  • Fuel tank molding rigid component and fuel tank molding method
  • Fuel tank molding rigid component and fuel tank molding method
  • Fuel tank molding rigid component and fuel tank molding method

Examples

Experimental program
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Effect test

Embodiment 1

[0022] Embodiment 1: see figure 1 , a fuel tank molding rigid component, the two ends of the rigid component 1 are vertically symmetrical, and each end is provided with a large disc 2 and a small disc 3, wherein the small disc 3 is located on the top of the large disc 2, and the large disc A gap 5 is provided between the disc 2 and the small disc 3 . This gap 5 allows the fuel tank body material to form a flanged structure here. The structure is simple and cleverly designed. The symmetrical large and small disc structure first increases the contact area between the fuel tank parison material and the rigid component, and the stability is better. The fuel tank parison material forms a ring in the gap between the upper and lower discs. The flanging structure wraps the small disc and increases the contact area between the fuel tank parison material and the rigid component, which can ensure that the rigid component will not be displaced relative to the fuel tank when the fuel tank...

Embodiment 2

[0023] Example 2: see figure 1 , as an improvement of the present invention, the small disc 3 is provided with a hole 4 . The hole 4 allows the material of the fuel tank body to form a convex hull 6 at the opening position to enhance the radial bearing capacity of the disc. The large disc 2 is provided with a hole 4 . The diameter of the holes is 5 to 8 mm, which are evenly distributed on the large and small discs. The distance between the center of the hole and the center of the circle is about 12 to 15 mm. This hole can make the material of the fuel tank body form a convex hull at the opening position, and enhance the radial bearing capacity along the disc. .

Embodiment 3

[0024] Embodiment 3: see figure 1 , as an improvement of the present invention, the rigid component is made of plastic or metal parts wrapped in plastic to increase the support of the fuel tank, and the purpose of wrapping metal in plastic is to increase the rigidity of the rigid component.

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Abstract

The invention relates to a fuel tank forming rigid component, which is characterized in that the two ends of the rigid component have a vertically symmetrical structure, and each end is provided with a large disc and a small disc, wherein the small disc is located on the top of the large disc, and the large There is a gap between the disc and the small disc. This technical solution will adopt a rigid component connection structure with flanges. This structural design can greatly improve the rigidity of the fuel tank body, while reducing the weight of the body, saving raw materials, and ensuring Effective volume.

Description

technical field [0001] The invention relates to a fuel tank forming rigid component, in particular to a fuel tank forming rigid component and a fuel tank forming method, belonging to the technical field of fuel tank manufacturing. Background technique [0002] In the high temperature environment of plastic fuel tanks, due to the reduction of the strength of the plastic material, the high pressure makes the deformation of the fuel tank relatively large, which affects the safety performance of the fuel tank. In the design structure of the fuel tank, in order to increase the rigidity of the body, the kiss-off structure is mainly adopted at present, such as figure 1 As shown, but such a structure reduces the effective volume of the fuel tank, the molding is prone to defects, increases the weight of the fuel tank body, wastes raw materials, and the strength that this structure can provide is limited; and with the development of the economy, the environmental protection department...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K15/03B29C49/00B29C49/46
Inventor 孙岩姜林刘亮朱志勇胡正云李娟
Owner YAPP AUTOMOTIVE PARTS