Vehicular Camera Housing for Heat Dissipation and EMI Shielding
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Solution Overview
Problem
Existing vehicular cameras face challenges in efficiently dissipating heat generated by components while maintaining effective noise shielding and sealing performance.
Innovation Solution
A vehicular camera design incorporating a conductive member with strategically designed holes for heat dissipation and noise shielding, combined with a resin member for thermal conductivity, ensuring efficient heat dissipation and maintaining electromagnetic interference shielding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If holes are added to the conductive member for heat dissipation, then heat dissipation performance is improved, but noise shielding performance deteriorates
Solution Approach 1:
The conductive member is designed with multiple through-holes forming a porous structure that enables heat dissipation while maintaining electromagnetic shielding. The holes allow heat to pass through the conductive member from the circuit board to the external environment, while the conductive material surrounding the holes continues to provide noise shielding functionality.
Solution Approach 2:
The patent combines conductive material (for noise shielding) with heat dissipation structures (through-holes) to create a composite functional member. The conductive member integrates both electromagnetic shielding properties and thermal conduction properties, allowing simultaneous achievement of noise protection and heat dissipation.
2Adaptability or versatility
If the housing structure is made complex to accommodate multiple components, then component accommodation capability is improved, but manufacturing difficulty increases
Solution Approach 1:
The patent merges multiple functional components into integrated structures. The conductive member combines noise shielding, heat dissipation, and structural support functions. The housing integrates mounting provisions for the lens unit, circuit board, and conductive member into a unified structure, reducing the number of separate parts while maintaining component accommodation capability.
Solution Approach 2:
The conductive member serves multiple purposes: it provides electromagnetic shielding, facilitates heat dissipation through its through-holes, and acts as a structural support element. The housing design incorporates multiple mounting surfaces and attachment points that can accommodate various component configurations, providing universal adaptability.
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 design effectively dissipates heat generated by camera components while preventing a decrease in noise shielding performance, enhancing overall camera functionality and reliability.
Implementation Method 1
a resin member (90) having predetermined thermal conductivity... heat generated inside the housing can be efficiently dissipated
Implementation Method 2
a conductive member (70)... by appropriately designing the hole of the conductive member in consideration of a noise shielding effect
Data Source
AI summary
A vehicular camera includes a lens unit, a circuit board, an imaging element, a conductive member disposed to accommodate at least the circuit board and the imaging element, a housing, and a resin member having predetermined thermal conductivity. The resin member is brought into contact with a first inner side surface of a large-diameter tubular portion of the housing through a first hole of a first planar portion of the conductive member, a second inner side surface of the large-diameter tubular portion through a second hole of a second planar portion of the conductive member, a third inner side surface of the large-diameter tubular portion through a third hole of a third planar portion of the conductive member, and a fourth inner side surface of the large-diameter tubular portion through a fourth hole of a fourth planar portion of the conductive member.