Illuminated Switch Structure Without Occupying Control Contacts
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional switch devices face challenges in synchronously indicating operational movement and state with a light source, leading to reduced practical application efficiency and complicated wiring due to the occupation of control contacts by light sources.
Innovation Solution
A switch structure with an internal switch assembly and a push button assembly that controls a light source without occupying control contacts, using a torsion spring to manage electrical connections between power terminals and control terminals, allowing simplified wiring and accurate operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional switch device uses a light holder with a light source to indicate operational state, then the light source can synchronously indicate the switch operational movement and state, but the control contact originally intended for connecting to an external device must be occupied exclusively by the light source, decreasing the quantity of contact blocks available for controlling external devices
Solution Approach 1:
The patent combines the light source control function with the main power circuit by inserting the light source in series between the power terminals and the load circuit. This merging allows the light source to be controlled by the same push button that controls the external device, achieving synchronous indication without occupying separate control contacts.
Solution Approach 2:
The switch device is designed to serve multiple functions simultaneously: it can control external devices through contact blocks and provide visual indication through the light source using the same control mechanism. This multi-functionality allows a single control contact to serve both control and indication purposes.
2Reliability
If a light holder with a light source is used to indicate operational state, then the light source can be electrically connected to the external power source through control terminals, but the electrical connection between control terminals and the light holder makes the wiring more complicated
Solution Approach 1:
The light source is integrated into the main power circuit path between power terminals, eliminating the need for separate control terminal connections. This merging of the light source control with the main power circuit simplifies the wiring structure by removing additional electrical connection paths.
3Reliability
If a light holder with a light source is used to indicate operational state, then the light source can be controlled by the switch, but the light holder only provides a relatively simple fixing structure for holding the light source without any other control structure
Solution Approach 1:
The control function for the light source is merged with the push button assembly that controls the external device. The same push button operation simultaneously controls both the contact blocks for external devices and the light source through the main power circuit, eliminating the need for separate control structures.
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 solution enables simplified internal wiring and enhanced operational efficiency by independently controlling a light source without using control contacts, improving the switch's overall effectiveness and application scope.
Implementation Method 1
using a torsion spring to manage electrical connections between power terminals and control terminals
Data Source
AI summary
A switch structure electrically linked with a light source includes a main body, a push button assembly, and at least one contact block. The main body includes a base and an internal switch assembly. The base is provided with a plurality of power terminals for connecting to an external power source and the internal switch assembly is serially connected to between the power terminals and a light source. The contact block includes a plurality of control terminals for connecting to external devices to be controlled; and the push button assembly can drive the internal switch assembly and the contact block, so that the control terminals of the contact block are electrically connected to each other and the light source is synchronously controlled by the internal switch assembly to electrically connect to the external power source and emit light, which can indicate an operational state of the switch structure.