Heat source unit
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Solution Overview
Problem
Conventional heat source units with a bottom frame on mounting feet suffer from the propagation of transport vibrations to refrigerant pipes, potentially causing damage, and operational vibrations that can transfer to buildings, leading to noise and aesthetic issues.
Innovation Solution
Incorporating vibration-proofing members between the bottom frame and mounting feet to reduce vibration propagation, and using unanchored struts that extend upward from the mounting feet to further mitigate operational vibrations, while maintaining a visually appealing design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the bottom frame is directly mounted on the mounting feet, then the structural stability is improved, but transport vibrations propagate to the refrigerant pipes causing potential damage
Solution Approach 1:
A vibration-proofing member is introduced as an intermediary element between the mounting feet and the bottom frame. This mediator absorbs and dampens transport vibrations, preventing them from propagating to the refrigerant pipes while still providing structural support and stability to the overall assembly.
Solution Approach 2:
The vibration-proofing member is pre-installed between the mounting feet and the bottom frame to provide cushioning before transport vibrations occur. This beforehand cushioning protects the refrigerant pipes from vibration damage during the transport phase without affecting the structural integrity during operation.
2Strength
If the bottom frame is directly mounted on the mounting feet, then the structural rigidity is improved, but operational vibrations propagate to the mounting feet and building
Solution Approach 1:
The vibration-proofing member serves as a mediator that allows the bottom frame to maintain structural rigidity for supporting devices while simultaneously blocking the transmission path of operational vibrations from the compressor to the mounting feet and building structure.
Solution Approach 2:
The vibration-proofing member functions as a flexible element that can deform to absorb vibrational energy while maintaining the overall structural configuration. This flexible component prevents hard transmission of operational vibrations while preserving the necessary structural support.
3Object-affected harmful factors
If vibration-proofing members are added between the bottom frame and mounting feet, then vibration propagation is reduced, but the device complexity increases
Solution Approach 1:
A single type of vibration-proofing member is used as the intermediary element, which simplifies the design compared to complex vibration isolation systems. This mediator provides effective vibration reduction without requiring multiple components or complex mechanisms, thus minimizing the increase in device complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Effectively prevents damage to refrigerant pipes from transport vibrations and reduces operational vibration propagation to buildings, enhancing vibration and noise performance while maintaining aesthetic appeal.
Implementation Method 1
vibration-proofing members that are provided between the bottom frame and the mounting feet and space the bottom frame and the mounting feet apart from each other
Data Source
AI summary
A heat source unit including: mounting feet; a bottom frame disposed on the mounting feet; vibration-proofing members that are disposed between the bottom frame and the mounting feet and space the bottom frame apart from the mounting feet; and a plurality of struts that extend upward from the mounting feet. All of the struts are anchored to the mounting feet without being anchored to the bottom frame.