Integrated Vehicle Power Supply Shielding for EMI and Cooling
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Solution Overview
Problem
Existing vehicle-mounted power supply systems with planar designs face complexity and interference from external signals, leading to reduced operating efficiency.
Innovation Solution
A vehicle-mounted power supply apparatus featuring an integrated magnetic device and a shielding component with a coolant channel to shield external signals and improve heat dissipation, enhancing the stability and safety of the power supply system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a planar design is adopted for the vehicle-mounted power supply, then the internal structure becomes more complex and is more prone to interference by external signals, but the manufacturing process is simpler
Solution Approach 1:
The magnetic device is integrated directly into the housing as an integrated part, merging the magnetic component with the structural housing. This integration simplifies the internal structure by eliminating separate mounting components and reduces the number of parts, while the shielding component surrounding the mounting position protects against external signal interference, thereby improving reliability without adding excessive complexity
Solution Approach 2:
A shielding component is introduced as an intermediary element between the external environment and the magnetic device. This shielding component surrounds the mounting position of the magnetic device, blocking external signal interference while allowing the integrated design to function effectively. The shielding component acts as a mediator that protects the sensitive magnetic device without requiring complex internal structuring
2Ease of manufacture
If the magnetic device is mounted at a specific position in the housing, then the integrated design can be easily realized, but the magnetic device is exposed to external signal interference
Solution Approach 1:
The magnetic device is designed as an integrated part of the housing, mounted at a specific position that allows for easy manufacturing and assembly. This integration maintains manufacturing simplicity while the added shielding component protects the mounted magnetic device from external signal interference, resolving the conflict between ease of manufacture and protection from harmful factors
Solution Approach 2:
The shielding component converts the potential harm of external signal interference into a protected environment for the magnetic device. By surrounding the mounting position with shielding material, the design transforms the vulnerable exposed mounting position into a protected zone, allowing the integrated magnetic device to operate reliably without compromising the ease of manufacture
3Reliability
If a shielding component is added to protect the magnetic device, then the stability and safety are improved, but the device complexity increases
Solution Approach 1:
The shielding component is integrated into the overall housing structure rather than being a separate added component. This merging approach provides the necessary protection for the magnetic device while maintaining structural simplicity, as the shielding function is combined with the existing housing design rather than adding independent complex structures
Solution Approach 2:
The housing structure serves multiple functions: it provides mechanical support, defines the mounting position for the magnetic device, and incorporates shielding properties to protect against external signal interference. This multi-functionality reduces the need for additional dedicated shielding components, maintaining structural simplicity while improving reliability
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 integrated design and shielding component effectively protect the magnetic device from external interference, improving the stability and safety of the power supply system while enhancing heat dissipation and operating efficiency.
Implementation Method 1
the shielding component surrounds a periphery of the mounting position
Implementation Method 2
a coolant channel is defined in the shielding component, and the coolant channel surrounds a periphery of the magnetic device
Data Source
AI summary
A vehicle-mounted power supply apparatus includes a housing, a magnetic device, and a shielding component. The housing includes a mounting position, a magnetic device includes an integrated part disposed at the mounting position, and a shielding component is disposed in the housing and surrounds a periphery of the mounting position.