Waterproof Terminal Block Assembly With Self-Separating Packing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing waterproof terminal blocks face issues with deteriorating sealing performance due to dimensional tolerance and increased assembly time when using integrated or phase-specific packings, leading to potential waterproof failures and assembly challenges.
Innovation Solution
A waterproof terminal block design featuring a housing with partition walls that cut connecting parts of the packing during assembly, using a holder to separate and securely fit annular sealing parts, thereby improving waterproofness and assembly efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the packing is formed integrally by connecting the plurality of sealing parts, then the assembly process is simplified, but the sealing performance deteriorates due to dimensional tolerance accumulation
Solution Approach 1:
The packing is divided into multiple separate seal parts corresponding to each phase, with each seal part independently fitted into its own packing fitting recess. This segmentation prevents dimensional tolerance accumulation while maintaining assembly simplicity through the holder structure.
2Reliability
If the packing is individually made for each phase, then the sealing performance is improved, but the assembly time and complexity increase
Solution Approach 1:
The holder serves multiple functions: it holds each separate seal part in position, guides the terminals during assembly, and ensures proper positioning of all packing components. This multi-functionality maintains assembly efficiency while enabling individual seal parts for each phase.
3Reliability
If the packing is individually made for each phase, then the sealing performance is improved, but the risk of assembly errors increases
Solution Approach 1:
The holder acts as an intermediary component that pre-organizes and pre-positions all the separate seal parts before terminal assembly. This intermediary structure eliminates assembly errors by ensuring each seal part is correctly positioned before the terminals are installed.
Data Source
AI summary
A waterproof terminal block includes a housing, a plurality of terminals configured to be inserted into and attached to the plurality of terminal insertion holes of the housing, a packing, and a holder fitted into a holder configured to be assembled to the housing and hold the packing. The housing has a cutting blade part at a partition wall partitioning an upper section of the housing into a plurality of packing fitting recess. The packing is integrally formed by connecting sealing parts of the plurality of sealing parts with a connecting parts. The cutting blade part is configured to cut the connecting parts when the plurality of terminals, the packing, and the holder are assembled to the housing.