Motor Compressor Soundproof Cover Displaced Boundary Design
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Solution Overview
Problem
Existing motor-driven compressor soundproofing solutions fail to effectively reduce noise and prevent water ingress while maintaining noise reduction efficacy, as boundaries in soundproof layers are often aligned, allowing noise and water to leak into the housing.
Innovation Solution
A soundproof cover configuration with layers where boundaries are displaced in the up-down direction, with the second selection layer's boundary located above the first selection layer's, preventing water from reaching the housing and maintaining noise reduction by ensuring noise does not leak out.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If boundaries in soundproof layers are aligned at the same position, then the structure is simple and easy to manufacture, but noise leaks through the continuous boundary and water can enter the housing
Solution Approach 1:
The patent applies dimensional displacement by shifting the boundary position in the vertical dimension between different layers. The first boundary is positioned at a first height while the second boundary is positioned at a second height different from the first height, creating a stepped configuration that blocks noise propagation paths without complicating the manufacturing process
Solution Approach 2:
The soundproof cover is segmented into multiple layers with distinct boundaries at different heights. This segmentation creates discontinuous boundary lines that prevent continuous noise leakage paths while maintaining structural integrity and ease of assembly
2Device complexity
If boundaries in soundproof layers are aligned at the same position, then the structure is simple, but water can enter the housing through the continuous boundary
Solution Approach 1:
The patent uses vertical dimensional displacement to create stepped boundaries at different heights across layers. This dimensional approach blocks water infiltration paths along the housing while avoiding increased device complexity, as the boundaries are simply positioned at different vertical levels
Solution Approach 2:
The boundaries are segmented across different layers with each layer's boundary positioned at a different height. This segmentation creates discontinuous water infiltration paths that prevent water from reaching the housing while maintaining a relatively simple overall structure
3Object-affected harmful factors
If the soundproof cover uses multiple layers with displaced boundaries, then noise reduction effectiveness is improved, but the structure becomes more complex
Solution Approach 1:
The patent achieves improved noise reduction by utilizing vertical dimensional displacement of boundaries between layers. This approach enhances noise blocking effectiveness while limiting structural complexity, as the displacement is achieved through simple vertical positioning differences rather than complex geometries
Solution Approach 2:
The soundproof cover is divided into multiple layers with segmented boundaries at different heights. This segmentation improves noise reduction by creating discontinuous leakage paths while maintaining manageable structural complexity through the modular layered design
Data Source
AI summary
A motor-driven compressor, a housing structure for a motor-driven compressor, and a method of installing a soundproof cover on a motor-driven compressor are provided. A soundproof cover includes layers that include a first layer and a second layer. The first layer is placed over a housing, and the second layer is placed over the first layer. Each of the layers includes a first segment and a second segment. A second selection layer is located inward of a first selection layer. A boundary in the second selection layer is located above the boundary of the first selection layer.