Single-row emergency stop switch with opposite-side contacts
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Solution Overview
Problem
Existing EMERGENCY STOP switches face challenges in ensuring reliable and safe operation due to the need for visible and accessible actuating devices, while maintaining electrical connections within control cabinets, and require precise spatial arrangements for switching contact units to manage different operational states without occupying excessive space.
Innovation Solution
The design incorporates a first and second switching contact unit with a switching bridge, connected via a displaceable plunger, allowing connection contacts to be arranged on opposite sides of the housing, utilizing a contact-connecting element that can be flat and rail-like, with angled sections to maintain cable cross-sections and enable plunger movement, and a spring system for independent actuation of switching states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If connection contacts are arranged on the same side of the housing, then wiring is simpler, but housing width increases
Solution Approach 1:
The patent transitions from arranging all connection contacts on the same side (single-plane arrangement) to distributing them on opposite sides of the housing (spatial distribution across multiple planes). This dimensional redistribution allows the housing width to be reduced while maintaining all necessary connection points, directly resolving the contradiction between compact size and wiring accessibility.
2Area of stationary object
If switching contact units are arranged in a compact single-row configuration, then space is saved, but reliability of connection separation may be compromised
Solution Approach 1:
The patent divides the switching contact units into distinct segments with clear spatial separation, where each switching contact unit can be independently actuated. The first and second switching contact units are positioned to be separately accessible by the plunger, ensuring that connection separation can be reliably achieved for each unit independently, thus maintaining reliability while achieving compact single-row configuration.
Solution Approach 2:
Each switching contact unit is designed with localized switching bridges and contact points that are specifically arranged to ensure reliable electrical separation when actuated. The contact points and switching bridges are positioned to create distinct, non-interfering electrical paths that can be independently controlled, ensuring local reliability within the compact overall structure.
3Adaptability or versatility
If the plunger is designed for independent actuation of both switching contact units, then operational flexibility is improved, but device complexity increases
Solution Approach 1:
The plunger is designed as a multi-functional actuating mechanism that can independently actuate both the first and second switching contact units. By making the plunger universal in its actuation capability, the patent achieves operational flexibility for different switching states without requiring separate actuating mechanisms for each contact unit, thereby avoiding increased device complexity while maintaining adaptability.
Data Source
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AI summary
The invention relates to an electrical contact device (1), in particular an emergency stop switch-contact device, comprising a first switch contact unit (4) for creating or disconnecting an electrically conductive connection and a second switch contact unit (5) for creating or disconnecting an electrically conductive connection, wherein a first contact side (6) of the first switch contact unit is connected to a first contact side (9) of the second switch contact unit, and a second contact side (7) of the first switch contact unit is connected to a first connection contact (15) of the contact device and a second contact side (10) of the second switch contact unit is connected to a second connection contact (17) of the contact device, and wherein the two switch contact units are designed to be actuated by a movable push rod (3) acting thereon, characterised in that the two connection contacts are arranged, in relation to the push rod, opposite each other on the contact device and wherein the first and the second switch contact unit are arranged inside a mounting unit (3) that is provided for connection to an actuating device.