Lighting Emblem Cable Fixing Structure to Prevent Airbag Cover Rattle
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Solution Overview
Problem
Vehicle emblems on driver's airbag covers experience a sagging phenomenon due to the weight of power cables connected to external power sources, leading to rattling or noise issues when the airbag is assembled.
Innovation Solution
A lighting emblem assembly with a cable fixing mechanism that includes a side plate with slits and protruding bodies to securely restrict the cable, preventing sagging and noise by accommodating the cable between the inner cover and sidewall, and using catch hooks for additional stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a power cable is connected to drive the LED light source, then lighting functionality is achieved, but cable sagging occurs due to weight causing rattle or noise
Solution Approach 1:
The cable fixing part is pre-formed on the inner cover to anticipate and prevent cable sagging before assembly. The fixing part includes positioning protrusions and clamping structures that are prepared in advance to secure the cable root portion, eliminating the need for additional fastening operations and preventing noise generation from the outset
Solution Approach 2:
The cable fixing part acts as an intermediary component between the cable and the airbag assembly. It includes a cable groove and clamping protrusions that mediate the connection, distributing the cable weight and preventing direct contact between the cable and moving airbag components, thereby eliminating rattle and noise
2Reliability
If the cable is fixedly restricted by a fixing part on the inner cover, then cable sagging is prevented, but device complexity increases
Solution Approach 1:
The cable fixing part is merged with the inner cover as an integrated structure. The fixing part includes positioning protrusions and clamping structures that are formed as part of the inner cover molding process, eliminating the need for separate cable fixation components and reducing overall assembly complexity while maintaining reliable cable positioning
Solution Approach 2:
The inner cover serves multiple functions: it provides structural support for the airbag, houses the lighting module, and incorporates the cable fixing part to secure the power cable. This multi-functionality reduces the total number of components needed while ensuring reliable cable positioning and preventing sagging
Data Source
AI summary
A lighting emblem assembly according to an embodiment of the present invention may include a cover having an installation region surrounded by an inner sidewall and including a light opening formed to pass through the installation region, an inner cover installed in the installation region and including an installation groove, and a lighting module which is installed in the installation groove, is connected to an external power source using a cable connected to a connector, and emits light to an outside through the light opening. The cable may extend between the inner cover and the inner sidewall to an upper end portion of the inner sidewall, and in a state in which the connector extends to an outside of the installation region, a root portion connected to the connector of the cable may be fixedly restricted by a fixing part provided on the inner cover.