Waterproof Connector Shell Collar for Secure Dust Sealing
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Solution Overview
Problem
Existing waterproof and dust-proof solutions for electronic device connectors, such as USB and audio interfaces, are costly and prone to detachment, necessitating a more reliable and cost-effective design.
Innovation Solution
An electrical connector design featuring a collar with a first and second plate portion and a bending portion, sleeved onto a metal shell with water-proof glue between the second plate portion and the bending portion, forming a simple and firm waterproof structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a water-proof collar made of rubber is sleeved onto the housing of the connector, then water-proof function is achieved, but manufacturing and assembly costs are relatively high and the water-proof means is easy to fall off from the housing
Solution Approach 1:
The patent merges the water-proof collar with the connector housing into a single integrated structure. The collar is formed as one piece with the housing through injection molding, eliminating the need for separate manufacturing and assembly steps. This reduces both manufacturing complexity and assembly costs while maintaining the water-proof function.
Solution Approach 2:
The integrated collar-housing structure serves multiple functions simultaneously: it provides water-proof sealing, structural support, and mechanical strength. The collar portion of the integrated structure maintains the sealing function against water and dust, while the housing portion provides structural support and protection for the connector components.
2Reliability
If a water-proof collar made of rubber is sleeved onto the housing of the connector, then water-proof function is achieved, but the water-proof means is easy to fall off from the housing
Solution Approach 1:
The patent merges the water-proof collar with the connector housing into a single integrated structure. The collar is formed as one piece with the housing through injection molding, eliminating the need for separate manufacturing and assembly steps. This reduces both manufacturing complexity and assembly costs while maintaining the water-proof function.
3Reliability
If a separate water-proof collar is used, then water-proof function is achieved, but the structure complexity and assembly steps increase
Solution Approach 1:
The patent merges the water-proof collar with the connector housing into a single integrated structure. The collar is formed as one piece with the housing through injection molding, eliminating the need for separate manufacturing and assembly steps. This reduces both manufacturing complexity and assembly costs while maintaining the water-proof function.
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 design provides a cost-effective, durable waterproof and dust-proof solution by increasing adhesive strength and structural integrity through a collar and water-proof glue arrangement, ensuring effective sealing against moisture and dust ingress.
Implementation Method 1
a water-proof glue is disposed between the collar and the outer wall to form a simple and firm water-proof structure
Data Source
AI summary
An electrical connector, including an insulating body, multiple terminals, a metal shell, a collar, and a water-proof glue, is provided. The terminals are disposed in the insulating body. The metal shell is disposed outside the insulating body and surrounds the insulating body and the terminals. The collar is sleeved onto an outer wall of the metal shell. The collar has a first plate portion, a second plate portion, and a bending portion. The bending portion is connected between the first plate portion and the second plate portion. The first plate portion is connected to the outer wall of the metal shell, and the second plate portion is away from the outer wall of the metal shell. The water-proof glue is disposed between the second plate portion of the collar and the bending portion and the outer wall of the metal shell.