Plug Connector Double Casing Segmentation Waterproofing
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Solution Overview
Problem
Existing plug connectors are complex to assemble and require a separate glue-injection process for waterproofing, which is time-consuming and costly.
Innovation Solution
A plug connector design featuring a conductive sleeve tube and external casing with a flexible ring for waterproofing, allowing for easier assembly and eliminating the need for glue injection, while providing enhanced electromagnetic shielding through conductive components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an integrally molded iron casing is used, then electromagnetic shielding effect is achieved, but assembly complexity increases and requires separate glue-injection process
Solution Approach 1:
The connector is divided into separate components: a first connector body, a second connector body, and a transmission cable. The terminals are separated from the casing structure, allowing independent assembly. The first connector body contains terminals while the second connector body provides the casing, enabling modular assembly without requiring integral molding.
Solution Approach 2:
The electromagnetic shielding function is extracted from the integral casing and implemented through a conductive coating layer applied to the second connector body. This separates the structural casing function from the electromagnetic shielding function, allowing the shielding to be achieved through surface treatment rather than requiring a completely enclosed metal case.
2Reliability
If an integrally molded iron casing is used, then electromagnetic shielding effect is achieved, but manufacturing time and cost increase due to glue-injection process
Solution Approach 1:
The electromagnetic shielding function is extracted from the integral casing and implemented through a conductive coating layer applied to the second connector body. This separates the structural casing function from the electromagnetic shielding function, allowing the shielding to be achieved through surface treatment rather than requiring a completely enclosed metal case.
Solution Approach 2:
The mechanical assembly of separate components replaces the need for glue injection. The connection between the first connector body, second connector body, and transmission cable is achieved through mechanical engagement structures, eliminating the requirement for adhesive bonding processes.
3Reliability
If glue is injected for waterproofing, then water-proof function is achieved, but assembly process becomes more complex and time-consuming
Solution Approach 1:
The mechanical assembly of separate components replaces the need for glue injection. The connection between the first connector body, second connector body, and transmission cable is achieved through mechanical engagement structures, eliminating the requirement for adhesive bonding processes.
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 simplifies assembly, achieves excellent electromagnetic shielding, and ensures waterproofing without the need for glue injection, saving time and resources while maintaining operational integrity in wet conditions.
Implementation Method 1
the sleeve tube and the external casing are conductive... the present invention provides better electro-magnetic shielding effect with respect to the set of terminals and the transmission cable
Implementation Method 2
a flexible ring that is disposed between the sleeve tube and transmission cable
Data Source
AI summary
A plug connector suitable for connecting with a socket connector including a first internal screw thread is provided. The plug connector includes an internal casing having an inside space, a set of terminals disposed in said inside space, a sleeve tube and an external casing. The sleeve tube is fixed to said internal casing and includes an external hook. The external casing is movably covered to said internal casing and includes a first external screw thread, an internal hook and a concaved slot caving in the inner surface of the external casing facing to said internal casing. The internal hook forms one of walls of said concaved slot. The external hook is movably disposed in said concaved slot. When said socket connector screws to said plug connector, said external casing is pulled toward said socket connector, and said internal hook of said external casing contact said external hook of said sleeve tube.