Electrical Component Module Mounting for Thread-Free Heat Sink Fixing
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Solution Overview
Problem
Existing electric component modules require threaded holes in the substrate for screw fixation, complicating maintenance and potentially interfering with substrate wiring.
Innovation Solution
The electric component module design includes a first member with a screw receiver and a positioner that is fixed to the substrate using a smaller, non-threaded hole, allowing for screw fixation without substrate threading, and incorporates a heat sink with a screw hole for thermal connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If threaded holes are provided in the substrate for screw fixation, then the heat-generating component and heat-dissipating component can be securely connected, but the substrate structure becomes more complex and maintenance becomes more difficult
Solution Approach 1:
The connection structure is segmented into two parts: the substrate with a simple through-hole for positioning, and a separate first member with the screw receiver. This segmentation allows the substrate to remain simple while the connection function is provided by the first member, resolving the contradiction between connection strength and substrate complexity.
Solution Approach 2:
The first member acts as an intermediary between the substrate and the heat-dissipating component. It receives the screw from the heat-dissipating component and transmits the fixing force to the substrate through a simple through-hole, eliminating the need for threaded holes in the substrate while maintaining strong connection.
2Ease of repair
If threaded holes are provided in the substrate for maintenance work, then screw fixation is possible, but the substrate requires additional processing and wiring layout becomes more difficult
Solution Approach 1:
The maintenance function is segmented from the substrate to the first member. The first member contains the screw receiver that is accessible from the rear surface, allowing maintenance personnel to access and remove screws without needing to work from the front surface or create complex threaded holes in the substrate.
Solution Approach 2:
Instead of providing threaded holes in the substrate that are accessible from the front surface, the screw receiver is inverted to the rear surface of the first member. This allows screw access from the opposite direction, simplifying substrate processing and avoiding interference with front-side wiring while maintaining ease of maintenance.
3Adaptability or versatility
If heat-generating components of different sizes are mounted on the substrate, then functional requirements are met, but thermal connection uniformity becomes difficult to achieve
Solution Approach 1:
The first member serves multiple functions: it provides mechanical support for heat-generating components of different sizes, ensures uniform thermal contact between components and the heat-dissipating component, and provides a standardized screw receiver for fixation. This universal design accommodates various component sizes while maintaining consistent thermal connection quality.
Solution Approach 2:
The first member acts as a thermal intermediary between heat-generating components of different sizes and the heat-dissipating component. It provides a uniform contact surface that ensures consistent thermal connection regardless of the varying sizes of the mounted components, resolving the contradiction between adaptability and connection precision.
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
This design eliminates the need for substrate threading, simplifies maintenance, and enhances cooling performance by aligning heat-generating components of varying sizes for improved heat dissipation.
Implementation Method 1
The heat generated by the heat-generating component is transferred to the heat-dissipating component that is in direct or indirect contact with the heat-generating component, and then released to a relatively low temperature region such as the atmosphere or a fluid refrigerant.
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
An electric component module (100) includes a first heat-generating component (130a), a substrate (110), a heat sink (140), a first member (120), and a screw (160). The substrate (110) has a mounting surface (111) on which the first heat-generating component (130a) is mounted. The heat sink (140) is thermally connected to the first heat-generating component (130a). The heat sink (140) has a screw hole (143) penetrating in the thickness direction. The first member (120) is disposed between the mounting surface (111) and the heat sink (140) and fixed to the mounting surface (111). The first member (120) has a screw receiver (123). The screw (160) is inserted into the screw hole (143) from an upper surface (141) on the opposite side to a lower surface (142) of the heat sink (140) facing the mounting surface (111), and is fixed to the first member (120).