Connector Ventilation Passage for Pressure Equalization
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Solution Overview
Problem
Conventional protective tubes for wires experience pressure increases due to temperature changes and atmospheric pressure fluctuations, which can lead to clogging of ventilation portions by flying objects or dust, causing potential damage and malfunction.
Innovation Solution
A connector system with a ventilation passage connecting the inner space of the protective tube to the device's inner space through through holes in the wire-side and device-side connectors, allowing air release and preventing clogging by flying objects or dust.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stress or pressure
If a ventilation portion is arranged in the water resistant cover, then pressure increase inside the protective tube is limited, but the ventilation portion is clogged by flying objects or dust
Solution Approach 1:
The ventilation function is segmented from the water resistant cover to the connectors. The ventilation passage is formed inside the wire-side connector and device-side connector through fitted holes, separating the ventilation function from the protective tube structure. This segmentation allows the ventilation passage to be positioned inside the connectors where it is protected from external contaminants while still performing the pressure equalization function.
Solution Approach 2:
The connectors serve as intermediary structures that provide the ventilation passage. Instead of directly arranging the ventilation portion in the water resistant cover, the invention uses the connectors as mediators to create an internal ventilation pathway. The fitted holes in the connectors form the ventilation passage, which connects the inner space of the protective tube to the outer environment through the connector structure itself.
2Reliability
If the ventilation passage is formed inside the connectors, then the passage is protected from clogging, but the structure becomes more complex
Solution Approach 1:
The connectors perform multiple functions: electrical connection, mechanical coupling, and ventilation. By forming the ventilation passage within the existing connector structure through fitted holes, the invention adds the ventilation function without requiring separate dedicated ventilation components. This multi-functionality approach integrates the ventilation system into the existing connector design, minimizing additional structural complexity.
Solution Approach 2:
The ventilation passage is merged with the connector structure. The fitted holes that form the ventilation passage are integrated into the connector body during manufacturing, combining the ventilation function with the connector's primary functions of electrical connection and mechanical coupling. This merging eliminates the need for separate ventilation components and reduces overall system 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 connector system effectively limits pressure increases within the protective tube by releasing air and preventing clogging, ensuring reliable operation and maintaining water resistance.
Implementation Method 1
the pressure inside a protective tube may increase due to a temperature change in the protective tube, a change in the atmospheric pressure, or the like. Air flows between the inside and outside of the protective tube through the ventilation portion
Data Source
AI summary
This connector is provided with: an apparatus-side connector (70) attached to an apparatus having a case (90); and a wire-side connector (20) to which a protective pipe (11) that protects a wire (10) is attached. A through hole (27) is formed inside the wire-side connector (20). A through hole (78) is formed inside the apparatus-side connector (70). When the wire-side connector (20) and the apparatus-side connector (70) are normally fitted, an air passage (60) communicating the inner space (S2) of the case (90) of the apparatus and the inner space (S1) of the protective pipe (11) through the through hole (27) and the through hole (78) is formed inside the wire-side connector (20) and the apparatus-side connector (70).