Vehicle Radiator Grill Double Injection Two-Color Molding
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Solution Overview
Problem
Conventional methods for producing vehicle radiator grills with two different colors involve painting or plating, which increase weight, cost, and process complexity, and are harmful to the environment, while also reducing productivity and aerodynamic performance due to gaps between assembled components.
Innovation Solution
A vehicle radiator grill is manufactured using double injection to integrally combine plastic resins of different colors, eliminating the need for painting or plating and reducing the number of processes, while enhancing coupling strength and aesthetics by forming a base component with air passages and an image component that exposes the second color through the air passage, thus preventing whistle noise and maintaining cooling efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If painting or plating is used to produce two different colors on radiator grill, then aesthetic appearance is improved, but weight increases and environmental harm occurs
Solution Approach 1:
The patent uses double injection molding to integrate two different colored plastic resins into a single radiator grill component. The first resin forms the base component while the second resin forms the image component with different color, eliminating the need for painting or plating processes and reducing overall weight while maintaining aesthetic appearance.
2Shape
If painting or plating is used to produce two different colors, then aesthetic appearance is improved, but manufacturing cost and process complexity increase
Solution Approach 1:
The patent merges the coloring process into the molding process itself by using double injection molding. Instead of separate painting or plating steps, the two different colors are integrated directly into the molded components during a single manufacturing process, significantly reducing process complexity and manufacturing cost.
3Shape
If radiator grill is divided into two separately manufactured components and assembled, then two different colors are achieved, but productivity decreases due to increased assembly processes
Solution Approach 1:
The patent combines two separately manufactured components into a single integrally molded part using double injection molding. The base component and image component are formed in one continuous manufacturing process without requiring separate assembly steps, thereby eliminating fastening components and significantly improving productivity.
4Temperature
If air passage size is enlarged to increase cooling area, then cooling efficiency is improved, but external exposure of engine compartment increases affecting aesthetics
Solution Approach 1:
The patent applies local quality by using different colors in different regions of the radiator grill. The image component with the second color is disposed to expose through the air passage, creating a two-color visual effect that maintains aesthetic appearance even when air passage size is enlarged for improved cooling efficiency.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method reduces weight and cost, improves productivity, and maintains aerodynamic performance and cooling efficiency while being environmentally friendly, with the added aesthetic benefit of two distinct colors without expanding the air passage's external exposure.
Implementation Method 1
an image component that has a second color, which is different from the color of the base component, and is integrally formed with the base component using double injection
Data Source
AI summary
A vehicle radiator grill that is manufactured by integrally combining plastic resins of different colors by using double injection and thus has two different colors is provided. The vehicle radiator grill includes a base component that has a first color and forms an exterior of a radiator grill while providing a vent component which has a plurality of air passages formed therethrough and blocked parts are disposed at both sides of the vent component. Additionally, an image component which has a second color different from the color of the base component is integrally formed with the base component by using double injection and exposes the second color toward the front of the radiator grill through the air passage to form an image of two different colors.