Switching Device Internal Overvoltage Limiter Mounting
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Solution Overview
Problem
Existing electromagnetic switching devices face challenges in retrofitting overvoltage limiters and additional elements without increasing their external dimensions, particularly in space-constrained environments like control cabinets, where side or rear mounting is not feasible.
Innovation Solution
A switching device with a receiving device and interface within its housing that allows for the complete enclosure and electrical contacting of overvoltage limiters and additional elements, such as communication modules, without altering the device's external dimensions, enabling flexible and space-optimized retrofitting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an overvoltage limiter is mounted externally on the front of the electromagnetic switching device, then the overvoltage limiter can be connected to the switching device, but the external dimensions of the electromagnetic switching device are increased
Solution Approach 1:
The overvoltage limiter is completely received within the housing of the electromagnetic switching device through a receiving device. The limiter fits into an internal cavity or recess in the housing, allowing it to be nested within the existing external dimensions without increasing the overall size of the switching device.
Solution Approach 2:
The overvoltage limiter and electromagnetic switching device are combined into a single integrated unit. The receiving device provides mechanical mounting and electrical connection interfaces that merge the two components into one compact assembly, eliminating the need for separate external mounting.
2Length of stationary object
If the overvoltage limiter is mounted on the side or back of the switching device, then the external dimensions might be maintained, but the mounting is not possible or not useful due to rear arrangement on mounting rail or lateral connection of several switching devices
Solution Approach 1:
The receiving device is designed with universal mounting capabilities that work regardless of the switching device's installation position or configuration. The front-side receiving device accommodates the overvoltage limiter in a manner that is compatible with various mounting scenarios including rail mounting and lateral connections, providing universal adaptability.
3Length of stationary object
If a receiving device is integrated into the housing to completely receive the overvoltage limiter, then the external dimensions are maintained, but the receiving device requires additional interfaces for electrical contacting
Solution Approach 1:
The receiving device incorporates self-aligning electrical contact interfaces that automatically establish connections when the overvoltage limiter is inserted. The interface design includes contact blades or conductive elements that engage with corresponding terminals on the limiter, providing self-service electrical connection without requiring additional complex wiring or alignment procedures.
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
Enables easy and space-efficient installation of overvoltage limiters and additional elements, maintaining the device's dimensions and allowing for flexible expansion of functionality, even in environments where external mounting is impossible, thereby enhancing versatility and reducing manufacturing costs.
Implementation Method 1
When current flows through the coil, a magnetic field is created
Implementation Method 2
An anchor is attracted, which then presses two contact springs against each other
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The device (1) has housing (2), where a receiving device (4) is provided for completely receiving an over voltage protector in the housing. The receiving device has an interface for electrical contact of the over voltage protector, where the receiving device is provided at a front side of the switching device. The receiving device includes fastening elements for fastening the over voltage protector in the receiving device. The housing has a covering element (6) for closing the switching device.