Motor-Driven Compressor Wiring Connection Unit Segmentation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing motor-driven compressors face challenges due to a connector coupler formed integrally with the housing, which increases the compressor's size, hinders installation, and complicates connection to a vehicle, as it projects from the outer surface and is difficult to connect directly.
Innovation Solution
A motor-driven compressor design featuring a wiring connection unit with a resin sealing member that separates the connector from the housing, allowing the connector to be discrete and reducing the compressor's size, with primary and secondary bus bars and wires extending through a sealing unit that covers and seals the connections, facilitating easier installation and connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a connector coupler is formed integrally with the inverter housing, then the connector coupler is fixed and structurally integrated, but the motor-driven compressor size is enlarged and installation is hindered
Solution Approach 1:
The connector coupler is separated from the inverter housing into an independent component. The inverter housing now includes a connector coupler receiving portion that can receive a separate connector coupler, allowing the wiring harness to be connected externally without being integrally formed with the housing, thus reducing the overall compressor size while maintaining structural stability.
2Stability of the object's composition
If a connector coupler is formed integrally with the inverter housing, then the connector coupler is fixed, but connection to the vehicle becomes difficult
Solution Approach 1:
The connector coupler is designed as a separate, movable component that can be independently positioned and connected. The inverter housing includes a receiving portion that accommodates the separate connector coupler, allowing flexible connection to the vehicle's wiring harness without being constrained by integral formation, thus improving ease of connection while maintaining proper fixation.
3Device complexity
If an integral connector coupler is used, then the structure is simplified, but the projecting connector coupler complicates installation in the vehicle
Solution Approach 1:
The connector coupler is segmented from the inverter housing structure, allowing it to be a separate, smaller component. The inverter housing includes a dedicated receiving portion for this separate connector coupler. This segmentation reduces the overall projector size and simplifies the main housing structure, making installation in the vehicle easier while maintaining structural simplicity.
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
A motor-driven compressor includes a compression unit, an electric motor, a housing that includes an accommodating chamber and a wiring connection port, a motor driving circuit that includes a substrate arranged in the accommodating chamber, wiring electrically connected to the substrate and extending out of the housing through the wiring connection port, and a resin sealing member fitted to the wiring connection port. The wiring includes a primary conductor, which has a first end connected to the substrate and a second end, and a secondary conductor, which is connected to the second end of the primary conductor and arranged outside the housing. The secondary conductor includes a wire portion and a sheath that is made of an insulating material and covers the wire portion. The sealing member covers the sheath and a junction between the primary conductor and the secondary conductor.