Cup-Shaped Plug Cover Sealing for Water- and Dust-Proof Housing
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Solution Overview
Problem
Existing electronic devices face challenges in providing effective sealing against external influences such as water and dust, while maintaining good corrosion protection and easy assembly.
Innovation Solution
The housing is sealingly connected to a cup-shaped cover with a sealing ring, and the plug part is detachably connected to the mating plug part, using fastening elements and a casting compound for a secure and space-saving arrangement, ensuring a tight seal against external factors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the housing is sealed to the cover to protect against external influences, then protection against water and dust is improved, but assembly complexity increases
Solution Approach 1:
The device is divided into separable components (housing, cover, plug part, mating plug part) that can be assembled and disassembled independently. The sealing function is achieved through standardized sealing elements (sealing ring, sealing groove) that facilitate easy assembly without compromising protection against water and dust.
Solution Approach 2:
A sealing ring is introduced as an intermediary element between the housing and cover to achieve effective sealing. This separate sealing component simplifies the assembly process by providing a dedicated sealing mechanism that can be easily installed and replaced without modifying the main housing or cover structures.
2Ease of operation
If the plug part is detachably connected to the mating plug part, then ease of assembly is improved, but sealing reliability may worsen
Solution Approach 1:
The sealing ring is pre-installed into the sealing groove of the housing before the plug part is inserted. This preliminary sealing preparation ensures that the sealing function is established before the detachable connection is made, maintaining sealing reliability while allowing easy assembly and disassembly of the plug parts.
Solution Approach 2:
A flexible sealing ring (thin film element) is used to create the seal between the housing and cover, and between the plug parts. The flexible nature of this sealing element allows it to accommodate the detachable connection movements while maintaining reliable sealing, thus enabling easy assembly without compromising sealing integrity.
3Object-affected harmful factors
If a sealing ring with larger diameter than the plug part is used, then protection against external influences is improved, but device volume increases
Solution Approach 1:
The sealing ring is designed with a localized larger diameter only in the specific region where sealing is required (extending beyond the plug part diameter), while the rest of the housing and cover maintain their compact dimensions. This localized approach provides enhanced protection against external influences without significantly increasing the overall device volume.
Data Source
Figure 1~2
AI summary
In an electronic device (1) comprising a housing (3), which has an opening in which a plug part (5) of an electrical plug connection is inserted, wherein the opening can be closed by a pot-shaped cover (2) which accommodates a counter plug part (6) of the electrical plug connection, wherein the plug part (5) is moulded on its rear side, according to the invention, the housing (3) is sealingly connected to the cover (2).