Inverter-Integrated Electric Compressor Circuit Board Vibration Support
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Solution Overview
Problem
Inverter-integrated electric compressors face challenges in securing vibration resistance without increasing size, weight, or cost, as existing solutions require additional support legs or gel material due to the size of components like semiconductor switching elements and capacitors.
Innovation Solution
The inverter-integrated electric compressor uses boss parts and high-voltage electrical components to support the main circuit board from above, and semiconductor switching elements to support it from below, eliminating the need for gel material or additional support columns, while configuring components to minimize size and weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional support legs or gel material are used to secure vibration resistance, then vibration resistance is improved, but device complexity and cost increase
Solution Approach 1:
The patent combines the support function with existing inverter components (semiconductor switching elements and high-voltage electrical components) that are already required for electrical functionality. These components serve dual purposes: electrical operation and mechanical support of the circuit board, eliminating the need for separate support structures.
Solution Approach 2:
The semiconductor switching elements and high-voltage electrical components are designed to perform multiple functions: their primary electrical function and an additional mechanical support function. By making these existing components multi-functional, the patent avoids adding extra parts while improving vibration resistance.
2Reliability
If additional support legs or gel material are used to secure vibration resistance, then vibration resistance is improved, but device weight increases
Solution Approach 1:
The patent merges the support function with existing inverter components, so no additional materials are added to the device. The semiconductor switching elements and high-voltage electrical components that are already present provide mechanical support, avoiding the weight penalty of extra support structures or gel materials.
3Reliability
If additional support legs or gel material are used to secure vibration resistance, then vibration resistance is improved, but manufacturing cost increases
Solution Approach 1:
The patent combines support functionality with existing inverter components, eliminating the need to purchase and install separate support structures or gel materials. This reduces component count and assembly steps, leading to lower manufacturing costs.
Solution Approach 2:
The inverter components serve their own support function, making the system self-sufficient. The semiconductor switching elements and high-voltage electrical components support the circuit board themselves without requiring external support structures, simplifying manufacturing.
Data Source
AI summary
An inverter-integrated electric compressor for which an inverter device is integrally incorporated, with a main circuit board being housed while the four corners thereof are supported by boss parts at locations above high-voltage electrical components and semiconductor switching elements. The multiple high-voltage electrical components are arranged in parallel along one side of the main circuit board at one side of an inverter housing part, with one side of the main circuit board being supported from below by the upper surface of these components. The multiple semiconductor switching elements are arranged in parallel along the other side opposing the one side of the main circuit board, at the other side of the inverter housing part, with the other side of the main circuit board being supported from below by multiple lead terminals extending upwards.