Housing Opening Shielding via Contacting Element
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Solution Overview
Problem
Existing solutions for protecting electronic devices from interference radiation, such as those with pressure equalization openings, are complex and costly due to the need for sandwich structures, which complicate meeting both thermal and electromagnetic compatibility requirements.
Innovation Solution
A housing arrangement with a contacting element of an electronic component positioned between pressure equalization openings and the circuit carrier to shield electronics from interference radiation, utilizing existing components like choke coils for electrical conductivity and shielding, and a housing formation that encloses the opening to enhance shielding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pressure equalization openings are provided in the housing, then pressure fluctuations and condensation moisture are prevented, but the electronics become susceptible to interference radiation penetration
Solution Approach 1:
The contacting element serves as an intermediary component positioned between the pressure equalization opening and the circuit carrier. It performs dual functions: allowing pressure equalization while blocking interference radiation from reaching the electronics. This mediator approach resolves the contradiction by introducing a third element that satisfies both requirements simultaneously.
Solution Approach 2:
The contacting element is designed to perform multiple functions: it provides electrical connection between components while simultaneously acting as a shield against interference radiation. By making the contacting element multi-functional, the patent eliminates the need for separate shielding structures, thus maintaining pressure equalization functionality while protecting against radiation.
2Reliability
If sandwich structures with interlocking U-profiles are used to meet thermal and electromagnetic requirements, then electromagnetic compatibility is improved, but device complexity and production costs increase
Solution Approach 1:
The patent merges the shielding function with existing structural components (contacting elements and housing formation) rather than adding separate shielding layers. By combining multiple functions into existing components, the complexity of sandwich structures is avoided while still achieving electromagnetic compatibility requirements.
Solution Approach 2:
The housing formation and contacting elements serve themselves by providing both structural support and electromagnetic shielding functions. The housing formation that encloses the opening automatically provides shielding without requiring additional dedicated shielding components, thus reducing overall device complexity.
3Reliability
If contacting elements are positioned between openings and circuit carrier for shielding, then interference radiation protection is improved, but space availability inside housing is reduced
Solution Approach 1:
The contacting element performs dual functions: electrical connection and electromagnetic shielding. By making the contacting element multi-functional, no additional space-consuming shielding components are needed, thus protecting against interference radiation without reducing available housing space.
Solution Approach 2:
The shielding function is applied locally only in the critical area where the contacting element is positioned between the opening and circuit carrier. This localized approach provides effective shielding where most needed without adding bulk or reducing overall housing space availability.
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 solution effectively reduces interference exposure to electronics while maintaining pressure equalization functionality, offering a cost-effective alternative by leveraging existing components for shielding, thus enhancing the protection of ESD-sensitive electronics without increasing production complexity or costs.
Implementation Method 1
a contacting element of an electronic component of the electronics is arranged between the opening and the circuit carrier in such a way that the electronics are at least partially shielded from interference radiation penetrating through the opening into the housing
Data Source
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Figure 3~4
Figure 5
AI summary
The invention describes an arrangement for protecting electronics from interference radiation, comprising a housing (1-1) and a circuit carrier (2-1) for accommodating the electronics in an interior of the housing (1-1), wherein the housing (1-1) has an opening (1-4) for compensating for different pressures inside and outside the housing (1-1), and the arrangement is also distinguished by the fact that a contact-making element (1-3) of an electronic component (1-2) of the electronics is arranged between the opening (1-4) and the circuit carrier (2-1) in such a manner that the electronics are at least partially screened from interference radiation entering the housing (1-1) through the opening (1-4).