Vehicle Camera Housing Assembly for Sealing and Heat Dissipation
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Solution Overview
Problem
Existing vehicle camera assemblies face issues with sealing, alignment of components, and heat dissipation, leading to performance problems and increased costs.
Innovation Solution
A motor vehicle camera assembly design featuring electrically conductive housing parts with an attaching mechanism that sandwiches a rigid electronics carrier, ensuring proper alignment and sealing while enhancing heat dissipation through direct contact and the use of thermal and electrical conductive materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If housing parts are made of metal to dissipate heat, then heat dissipation is improved, but manufacturing complexity and cost increase
Solution Approach 1:
The housing is divided into separate front and back parts that can be manufactured independently using different materials or processes, then assembled together. This allows optimization of each segment for its specific function while simplifying manufacturing.
Solution Approach 2:
The patent employs composite construction where metal housing parts are combined with plastic components, including the use of plastic inserts molded into metal housing parts. This composite approach enables heat dissipation through metal while using cost-effective plastic for non-critical sections, thereby reducing overall manufacturing complexity and cost.
2Strength
If housing parts are attached by screws passing through electronics carrier, then attachment strength is improved, but sealing and alignment precision deteriorate
Solution Approach 1:
Plastic inserts are introduced as intermediary elements between the metal housing parts and electronics carrier. These inserts provide precise mounting features for screws while maintaining sealing integrity, thereby improving alignment precision without sacrificing attachment strength.
Solution Approach 2:
Sealing elements such as gaskets or sealing films are incorporated into the housing assembly to maintain sealing integrity around screw holes and joints. This allows strong mechanical attachment while preserving the密封性 (sealing) and alignment precision of the assembly.
3Productivity
If ultrasonic welding is used to attach housing parts, then manufacturing speed is improved, but sealing reliability deteriorates
Solution Approach 1:
The patent combines ultrasonic welding for rapid attachment of housing parts with separate sealing elements (gaskets or sealing films) that are integrated into the assembly. This merging of attachment and sealing functions maintains high manufacturing speed while ensuring reliable sealing through the dedicated sealing components.
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
The solution provides improved sealing, alignment, and heat dissipation, reducing assembly complexity and costs, while maintaining good camera performance and electromagnetic compatibility.
Implementation Method 1
In order to dissipate heat as quickly as possible to the outside of the housing assembly, plastic housing parts have been more recently replaced with metal housing parts
Implementation Method 2
The first housing part and the second housing part are attached together by via, for example, screws passing through the material of the electronics carrier
Data Source
AI summary
The motor vehicle camera assembly includes a first housing part, a second housing part, and an attaching mechanism for attaching the first and second housing parts together defining an inner space for receiving at least an electronics carrier. The attaching mechanism is configured such that, when the first and second housing parts are attached to each other, the first housing part contacts at least one portion of a first surface of the electronics carrier and the second housing part contacts at least one portion of a second surface of the electronics carrier. The first housing part may be coupled to the second housing part with the electronics carrier being tightly sandwiched there between.