Waterproof Cable Seal for Camera Fog Prevention
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Solution Overview
Problem
Existing electrical connections in devices like cameras are prone to water vapor ingress due to gaps between conductive wires and insulating sheaths, leading to issues such as fogging, which affects imaging quality.
Innovation Solution
An isolated waterproof cable design that seals a segment of the connector or conductive wire using a sealant, eliminating the siphon passage and preventing water vapor entry, utilizing a sealing structure within sockets or shells to ensure effective waterproofing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wires with conductive wires and insulating sheathes are used for electrical connection, then electrical connectivity is achieved, but water vapor can enter through gaps between conductive wires and insulating sheathes causing fogging
Solution Approach 1:
A sealant is introduced as an intermediary substance between the wire assembly and the camera housing. The sealant fills the gaps and spaces, creating a waterproof barrier that prevents water vapor from entering through the wire penetration path, thus resolving the contradiction between maintaining electrical connectivity and preventing water vapor ingress.
Solution Approach 2:
The patent employs sealing rings (O-rings or similar flexible sealing elements) that create flexible waterproof barriers. These sealing rings are installed in grooves around the wire assembly, providing a conformal seal that accommodates slight movements and manufacturing tolerances while effectively blocking water vapor pathways.
2Reliability
If sealing structures with sealants are added to prevent water vapor ingress, then waterproof performance is improved, but device complexity increases
Solution Approach 1:
The sealing function is merged with the existing wire assembly structure by integrating sealing rings into the wire connector housing and incorporating sealant application directly at the wire penetration point. This combines multiple functions (electrical connection, mechanical support, and waterproofing) into a single integrated assembly, improving waterproof performance without proportionally increasing overall device complexity.
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 solution effectively prevents water vapor from entering the device, thereby enhancing waterproof performance and resolving camera fogging issues, while being applicable to various camera types and reducing manufacturing costs through strategic sealant placement.
Implementation Method 1
These gaps make it easy for the outside water vapor to be absorbed into the electrical device due to siphon phenomenon
Data Source
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AI summary
Embodiments of the present application disclose an isolated waterproof cable for a wire and an electrical device provided with the same. The isolated waterproof cable for a wire includes: a wire body (11) including at least one core wire (110), each core wire includes a conductive wire (113) and an insulating sheath (112) provided outside the conductive wire (113); a seal provided at an end of the wire body (11); and at least one connector (12) connected with the conductive wire (113), and a segment of the connector (12) or the conductive wire (113) is sealed within the seal. The isolated waterproof cable for a wire provided by the embodiments of the present application prevents water vapor from flowing along the conductive wire and entering the electric device by sealing a segment of the connector or the conductive wire, thereby providing good waterproof performance, for example, the camera fogging problem can be well solved.