Insulating Element for Electronic Element Heat Sink Assembly
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Solution Overview
Problem
Conventional assembly structures of electronic elements and heat sinks fail to adequately insulate power transistors from heat sinks, leading to potential short circuits, electric arcs, and sparks when operating under high voltage, due to the piercing of insulating pieces by screws and inadequate insulation distance.
Innovation Solution
An assembly structure that uses a fastening element, an electronic element with a through hole, an insulating piece with a channel, and a heat sink, where the insulating element is secured between the electronic element and the heat sink to prevent conduction, using a sleeve or integral insulating element design to maintain insulation and enhance heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a screw is used to fasten the power transistor on the heat sink, then the fastening strength is improved, but the insulating piece may be pierced or destroyed, leading to potential short circuits
Solution Approach 1:
The patent introduces an insulating element as an intermediary component between the screw and the insulating piece. This insulating element prevents the screw from directly contacting and potentially piercing the insulating piece, thereby maintaining both fastening strength and insulation reliability simultaneously
Solution Approach 2:
The patent employs a composite structure combining different materials: the insulating piece (insulating material), the insulating element (insulating material), and the screw (conductive material). This composite approach allows the system to simultaneously achieve mechanical fastening and electrical insulation functions
2Temperature
If the insulating piece is made thin and plastic to improve heat dissipation, then the heat-dissipating effect is improved, but the insulating distance is insufficient, leading to electric arcs and sparks
Solution Approach 1:
The insulating element serves as an additional intermediary layer that supplements the insulating piece. This allows the insulating piece to remain thin for heat dissipation while the insulating element provides the necessary additional insulating distance to prevent electric arcs and sparks
Solution Approach 2:
The insulation function is segmented into two separate components: the insulating piece (for heat dissipation) and the insulating element (for insulation distance). This segmentation allows each component to be optimized independently - the insulating piece can be thin for heat dissipation while the insulating element ensures sufficient insulation distance
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 effectively prevents short circuits, electric arcs, and sparks by increasing the insulating distance between the electronic element and the heat sink, while also improving heat dissipation through the use of a heat-dissipating piece, ensuring stable and efficient operation under high voltage conditions.
Implementation Method 1
insulate the electronic element from the heat sink by the insulating element
Implementation Method 2
improving heat dissipation through the use of a heat-dissipating piece
Data Source
AI summary
An assembly structure of an electronic element and a heat sink is disclosed. An assembly structure of an electronic element and a heat sink comprises a fastening element, an electronic element having a first through hole, and an insulating piece having a second through hole, an insulating element disposed in the first through hole of the electronic element and having a channel therein, and a heat sink. The second through hole is disposed correspondingly to the first through hole of the electronic element, the electronic element and the insulating piece are secured on the heat sink by inserting the fastening element through the channel of the insulating element, so as to insulate the electronic element from the heat sink by the insulating element.