Electric Power Conversion Device Signal Line Routing
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Solution Overview
Problem
Existing electric power conversion devices face challenges in efficiently managing and minimizing the space required for signal line wiring due to the large number of signal lines connected to the control unit, leading to increased device size and laborious installation processes.
Innovation Solution
The electric power conversion device incorporates an electrically insulating support member with a first and second surface, routing signal lines along these surfaces to prevent crowding and integrate the control unit, gate driver, and power module at high density, minimizing the device's size by using the space between the control unit and support member, and eliminating the need for clips through a receiving groove with reinforcing ribs and a cover.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If clips are used for securing the signal lines in place, then the signal lines can be fixed, but engagement features must be provided in the supporting members which uses up a large amount of space in the case
Solution Approach 1:
The patent replaces the mechanical clip-based fixation system with a groove-based embedding system. The signal lines are routed along grooves formed on the supporting member surfaces, eliminating the need for separate clips and engagement features. This substitution reduces space consumption while maintaining reliable signal line positioning.
Solution Approach 2:
The patent merges the signal line routing function with the supporting member structure itself by forming grooves directly on the supporting member surfaces. This integration eliminates the need for separate fixation components and reduces the overall space required in the case.
2Adaptability or versatility
If a large number of signal lines are connected to the control unit, then the control functionality is comprehensive, but arranging these signal lines in a limited space in the case in an orderly manner involves highly laborious work
Solution Approach 1:
The patent utilizes the surface area of the supporting member as a routing dimension, spreading signal lines across the first and second surfaces rather than confining them to a localized area around the control unit. This dimensional distribution simplifies the arrangement process and reduces wiring complexity.
Solution Approach 2:
The patent divides the signal line routing into separate paths along the first surface and second surface of the supporting member. This segmentation prevents signal lines from being crowded in localized parts and makes the wiring arrangement more manageable and orderly.
3Volume of stationary object
If the control unit and gate driver are placed close to each other, then the integration density is high, but electrical insulation between them must be ensured
Solution Approach 1:
The patent uses the supporting member as an intermediary insulating structure between the control unit and gate driver. The supporting member's insulating properties provide electrical isolation while allowing these components to be placed close together on its surfaces, achieving both compactness and insulation reliability.
Data Source
AI summary
An electric power conversion device including a converter ECU (51) configured to control a switching device (33) via a gate driver (52), and an electronically insulating support member (115) supporting the control unit. The support member is provided with a first surface (116) supporting the control unit, and a second surface (117) facing away from the first surface, a signal line connected to the control unit extending along at least one of the first surface and the second surface.