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Energy-absorbing anti-splash device for automobile fender

A fender, anti-splash technology, applied in vehicle parts, transportation and packaging, superstructure sub-assembly, etc., can solve the problems of warping deformation, poor stiffness and tear strength, and loud noise of PP injection molded parts, reaching Stable performance, excellent impact resistance, good durability

Active Publication Date: 2016-05-11
JIANGSU KEXIN AUTOMOBILE DECORATION PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, PP injection molded parts are prone to warping and deformation, and their stiffness and tear strength are poor; while PE rotomoulding materials have good dimensional stability and stiffness, but this hollow thin-walled part will emit a large amount of vibration when it is hit by sand and stones. noise and possible breakdown

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-5

[0017] Embodiment 1-5 relates to an energy-absorbing anti-splash device for automobile fenders, comprising: a splash guard, and an energy-absorbing structure is attached to the splash guard; the thickness of the splash guard is 2mm , the thickness of the energy-absorbing structure is 18mm. The energy-absorbing structure is a net structure, a honeycomb structure or a turf structure. Preferably, the energy-absorbing structure is a turf-like structure. Both the splash guard and the energy-absorbing structure are made of composite elastic resin material. The composite elastomer resin described in the examples is prepared by reacting a screw extruder under heating conditions, the extruder is a three-stage single-screw extruder, and the compression ratio is between 2:1-3:1 , the aspect ratio is between 28:1-33:1, the temperature of the first heating zone of the single-screw extruder is 182-188°C, the temperature of the second heating zone is 188-192°C, and the temperature of the t...

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Abstract

The invention relates to an energy absorption type splashing preventing device for an automobile mud guard. The energy absorption type splashing preventing device comprises a splashing preventing plate. An energy absorption structure is pasted on the splashing preventing plate and is of a net structure, or a honeycomb structure or a turf structure. Composite elastic resin is adopted by the energy absorption type splashing preventing device, performance is stable, the energy absorption type splashing preventing device has the advantages of polyether type TPU resin which is bending resistant, winding resistant and hydrolysis resistant, and the tear resistance, the tensile strength, the impact resistance and the weather resistance of the splashing preventing device are quite good. The energy absorption type splashing preventing device can effectively absorb energy of water, mud and fog adsorbed on tires, and prevent the adsorbed objects from splashing out of the work range; simulation of forward going of an automobile shows that the effective energy absorption amount of water vapor generated on tires is larger than 93%, a good energy absorption effect on impact of gravel is achieved, the impact resistance is good, and durability is good.

Description

technical field [0001] The invention belongs to the technical field of auto parts, and more specifically, the invention relates to an energy-absorbing anti-splash device for an automobile fender. Background technique [0002] In rainy and snowy weather, when the car is running, the water, muddy water, and mist absorbed by the tires cannot be effectively collected and discharged, causing water, muddy water, and mist to splash on pedestrians, vehicles, flowers, and trees on both sides of the road. In any weather conditions, because the fender is cut from PP sheet or injection molding process, due to the technical requirements of the fender, the impact resistance and bending strength are not strong enough, resulting in the mud fender being covered by stones And so on breakdown. For this reason, the prior art has developed a kind of fender with energy-absorbing anti-splash device, as shown in CN202272073U, there is an energy-absorbing anti-splash fixedly connected with the fend...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D25/18C08L75/08C08L23/16C08L23/12C08L23/20C08G18/66C08G18/48
Inventor 张步才
Owner JIANGSU KEXIN AUTOMOBILE DECORATION PARTS
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