Integrated Inverter Compressor Grip Handling
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Solution Overview
Problem
Integrated-inverter electric compressors for in-vehicle air-conditioning systems face challenges in reducing size and preventing damage to CPU substrates during handling and assembly, as existing designs may lead to direct contact or static electricity exposure.
Innovation Solution
The integration of a grip on the resin case of the inverter module allows for handling without touching the CPU substrate, enhancing vibration resistance and maintaining a compact size by providing a horizontal grip along the upper edge of the resin case, enabling secure handling and assembly without direct contact with the CPU.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the CPU substrate is mounted on the upper surface of the resin case and the inverter device is handled during transportation or assembly, then the inverter device can be assembled and transported, but there is a risk that the CPU substrate might be damaged or static electricity might be generated causing damage to the CPU substrate
Solution Approach 1:
The patent introduces a grip as an intermediary component that mediates between the handler and the inverter device. The grip extends from the resin case and provides a dedicated handling interface, preventing direct contact with the CPU substrate. This intermediary structure allows safe transportation and assembly operations while protecting the vulnerable CPU substrate from damage and static electricity exposure.
2Volume of moving object
If the inverter device size is decreased to maintain ease of mounting in highly dense engine compartments, then the compressor size is reduced, but the handling and protection of the CPU substrate becomes more difficult
Solution Approach 1:
The patent extends the grip horizontally from the resin case, utilizing the horizontal dimension to provide a handling interface that does not increase the vertical profile or overall volume of the inverter device. This dimensional approach allows safe handling operations while maintaining the compact size required for dense engine compartment mounting.
Data Source
AI summary
The invention provides an integrated-inverter electric compressor and an inverter device thereof which allow handling of the inverter device by neither touching nor holding a CPU substrate. An integrated-inverter electric compressor includes an inverter module integrating a power-related metal substrate on which a power semiconductor switching device is mounted and a resin case integrally insert-molded with a plurality of terminals, and is provided with a CPU substrate on which a control and communication circuit having a device that operates at low-voltage is mounted on the upper surface of the inverter module, wherein the resin case is integrated with a grip which extends in a horizontal direction at an upper edge of a circumference thereof.