Compressor Housing Gasket Protrusions for PCB Vibration Restraint
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Solution Overview
Problem
Existing compressor housings with printed circuit boards experience loose edges that are susceptible to vibration and damage the seal, leading to micro-tears and compromised watertightness, particularly in automotive applications.
Innovation Solution
A housing design with protrusions on the sealing gasket that press against the plate to secure it within the housing, reducing vibration risk without additional fasteners, and incorporating supports and bosses to enhance the secure fit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the plate is held in place at various points with loose edges, then the plate can be secured within the housing, but the loose edges are susceptible to vibration and damage to the seal
Solution Approach 1:
The sealing gasket is designed with localized protrusions (bosses) at specific positions where the plate contour contacts the housing wall. These protrusions provide localized reinforcement and sealing contact only where needed, rather than requiring the entire gasket to be thick or rigid. This allows the plate edges to be securely held without creating loose portions susceptible to vibration.
Solution Approach 2:
The plate contour is designed to fit against the housing wall with a predetermined clearance, and the protrusions on the gasket are positioned to contact the plate at specific points before final assembly. This preliminary positioning ensures that the plate is correctly located and secured, preventing loose edges that could damage the seal during operation.
2Stability of the object's composition
If additional fasteners such as screws or rivets are used to secure the plate, then the plate's secure fit is improved, but the device complexity increases
Solution Approach 1:
The housing structure itself provides the securing function through the interaction between the plate contour, housing wall, and protrusions on the sealing gasket. The plate is held in place by the mechanical interference fit and localized contact points created by the protrusions, eliminating the need for separate fastening elements. The system secures itself through its own structural features.
Solution Approach 2:
The sealing gasket is integrated with the housing structure, with protrusions formed as part of the gasket body rather than as separate components. This merging of the sealing function with the plate securing function reduces the number of parts and simplifies the overall assembly, while still providing effective plate retention.
Data Source
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AI summary
Housing, in particular a compressor housing, said housing comprising first and second parts (2) jointly defining a first housing (10), said housing further comprising a plate (8), one or more holding supports (14) for said plate (8) and a seal (12), said plate (8) and said holding support(s) being arranged in said first housing (10), said seal (12) being located between said first and second parts (2), said seal (12) comprising one or more protrusions (22) directed towards the inside of the first housing (10) and pressing on said plate (8) at a contour (24) of said plate (8) to apply said plate (8) to said holding support(s).