Waterproof Connector With Checking Window For Voltage Measurement
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Solution Overview
Problem
Existing waterproof connectors face difficulties in performing continuity checks and voltage measurements due to sealed joint portions between cable ends and terminals, requiring exposure and removal of sealing members, which complicates the process and prevents measurements in connectors with potting agents or integral molding.
Innovation Solution
A connector design featuring a rear housing with a checking window and a waterproof lid that allows exposure of terminals for measurement while maintaining a sealed state, using a shield shell and integral molding to ensure waterproof performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the joint portion between cable end and terminal is covered by sealing members to achieve waterproof performance, then waterproof reliability is improved, but ease of operation for continuity check and voltage measurement deteriorates
Solution Approach 1:
The connector is divided into a waterproof portion (joint portion covered by sealing members) and a non-waterproof portion (terminal exposure portion). The sealing members are segmented to cover only the joint portion while leaving the terminal exposed, enabling simultaneous waterproof protection and measurement accessibility.
Solution Approach 2:
Different parts of the connector have different waterproof properties: the joint portion has high waterproof quality (covered by sealing members), while the terminal portion has low waterproof quality (exposed for measurement). This local differentiation allows the connector to satisfy both waterproof requirements and measurement accessibility.
2Reliability
If the terminal and cable end are molded integrally with connector housing to achieve waterproof performance, then waterproof reliability is improved, but ease of manufacture for measurement accessibility deteriorates
Solution Approach 1:
The connector structure is segmented into integrally molded portions (connector housing with cable end) and separately assembled portions (terminal). This segmentation allows the housing to be molded with built-in sealing structures while the terminal can be independently positioned to provide measurement access without requiring complex integral molding of all components.
3Ease of operation
If the shield shell and sealing members are removed to expose joint portion for measurement, then ease of operation for continuity check is improved, but waterproof reliability deteriorates
Solution Approach 1:
The connector is designed with functional segmentation where the terminal is separated from the sealed joint portion. This allows measurements to be performed on the exposed terminal without removing the shield shell or sealing members, thereby maintaining waterproof reliability while improving measurement accessibility.
Data Source
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AI summary
A connector (2) according to an aspect of the invention is a connector (2) provided with a rear connector (4) that includes a rear housing (14), and a front connector (5) that includes a front housing (15) and that is assembled to the rear connector (4); the rear housing (14) contains a terminal (3) of a cable end, and the front housing (15) contains a mating terminal to be connected to the terminal (3); and the rear housing (14) is provided with a checking window (10) through which the terminal (3) is exposed to outside and a voltage of the terminal (3) can be checked, and a waterproof lid (16) which closes the checking window (10) in a sealed state.