Omega Spring Pressing Device for Thermal Contact and Electrical Clearance
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Solution Overview
Problem
Existing methods for assembling electrical devices, such as switched-mode power supplies and power-electronic circuits, require manual and time-consuming processes to ensure good thermal contact between components and heat sinks while maintaining electrical clearances, leading to increased complexity and cost.
Innovation Solution
A device featuring a hollow body with Omega-shaped or quarter-circle spring arms, designed for easy assembly and automated integration, which allows for efficient pressing of components onto a heat sink while maintaining predefined electrical clearances and providing effective thermal dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual assembly methods are used to ensure good thermal contact between components and heat sinks, then thermal contact quality is improved, but assembly time and complexity increase
Solution Approach 1:
The pressing device is designed to automatically press the component against the heat sink through spring arms that apply continuous pressure, eliminating the need for manual adjustment and ensuring consistent thermal contact quality without increasing assembly time
Solution Approach 2:
A pressing device acts as an intermediary mechanism between the component and heat sink, providing controlled pressing force through spring arms to ensure optimal thermal contact while enabling automated assembly processes
2Reliability
If insulation elements are added to maintain electrical clearances, then electrical safety is improved, but device complexity and cost increase
Solution Approach 1:
The pressing device with spring arms serves as an intermediary structure that inherently maintains electrical clearances through its design, eliminating the need for additional insulation elements while preserving electrical safety
Solution Approach 2:
The pressing device performs multiple functions simultaneously: it applies pressing force for thermal contact, maintains electrical clearances through its structural design, and enables automated assembly, thereby reducing overall device complexity
3Area of stationary object
If components are placed closer together to save space, then device size is reduced, but maintaining electrical clearances becomes more difficult
Solution Approach 1:
The pressing device with spring arms acts as an intermediary structure that maintains required electrical clearances even when components are placed closer together, enabling compact device design without compromising electrical safety
Solution Approach 2:
The spring arms extend in a direction perpendicular to the component mounting surface, maintaining electrical clearances in the vertical dimension while allowing closer horizontal placement of components
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 rapid, cost-effective, and space-saving assembly of electrical devices with automated integration, ensuring efficient thermal dissipation and maintaining essential electrical clearances, thus reducing assembly time and costs while allowing for closer component placement.
Implementation Method 1
at least one spring arm (5), which is formed at least in a quarter-circle-shaped or ideally Omega-shaped manner
Implementation Method 2
the heat sink is arranged on a side or underside of the carrier plate that is not equipped with components, at least in a thermal contact region or in a cooling region
Data Source
AI summary
A device via which components mounted on a carrier plate can be pressed against a heat sink that is arranged on a side or underside of a carrier plate that is not equipped with components at least in a cooling region, the device through which at least one component can be pressed on includes at least one hollow body for receiving at least one fastening body and at least one spring arm formed in an Omega shape and has, at the end thereof, a bearing face formed as a polygonal flattening for transmitting a pressing force onto the component to be cooled, where the device is further formed in one part as a plastics injection-molded part and can be installed easily and quickly (particularly automated manner) and enables a space-saving arrangement of components to be cooled, particularly whilst maintaining predefined electrical clearances and/or predefined air gaps and creepage distances.