Refrigerant Compressor Spring Mounting Overlap
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Solution Overview
Problem
Conventional refrigerant compressors experience significant transverse deflections due to operational vibrations and transport shocks, leading to potential noise issues and risk of damage, as the spring elements used for vibration damping have conflicting requirements of low rigidity for damping and high rigidity to prevent excessive deflections.
Innovation Solution
The refrigerant compressor employs a bearing element arrangement where the overlapping end regions of pin-shaped bearing elements provide axial support to the spring elements, reducing transverse deflections and allowing for lower rigidity designs that enhance vibration damping without increasing noise or risking spring element dislodgment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If spring elements with low rigidity are used for vibration damping, then vibration damping performance is improved, but transverse deflection of the drive unit increases excessively
Solution Approach 1:
The invention transitions from a single-point bearing element arrangement to a distributed area support arrangement. The bearing elements are extended in the axial direction to create overlapping end regions that provide support across an area rather than at discrete points. This dimensional extension allows the spring element to be supported along its length, reducing transverse deflection while maintaining low rigidity for vibration damping.
Solution Approach 2:
The bearing elements are segmented into multiple zones along the axial direction, with the end regions providing support to the spring element. This segmentation allows different portions of the spring element to be supported at different locations, creating a distributed support system that reduces overall transverse deflection while maintaining the compliance needed for vibration damping.
2Stability of the object's composition
If spring element rigidity is increased to prevent excessive deflections, then transverse deflection control is improved, but vibration damping performance deteriorates
Solution Approach 1:
The spring element and bearing element arrangement provides locally differentiated support. The bearing elements provide support at specific axial locations where needed, rather than uniformly along the entire spring element. This local quality approach allows the spring element to maintain low overall rigidity for vibration damping while having supported regions that prevent excessive transverse deflection.
3Ease of manufacture
If conventional helical compression springs with cylindrical contours are used, then ease of manufacture is improved, but transverse deflection control deteriorates due to large free spring length
Solution Approach 1:
The bearing elements are positioned in advance to provide support to the spring element before operational loads are applied. The overlapping end regions of the bearing elements are pre-configured to support the spring element along its axial length, preventing excessive transverse deflection from occurring in the first place during operation or transport.
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
This configuration significantly reduces transverse deflections during operation and transport, improving vibration damping and reducing noise, while preventing spring element dislodgment and ensuring stable mounting of the drive unit.
Implementation Method 1
The drive unit requires suitable mounting inside the housing for the purpose of vibration damping
Implementation Method 2
conventional helical compression springs are used as spring elements
Data Source
AI summary
The invention relates to a refrigerant compressor (1) comprising a hermetically sealed housing (9) in the interior of which operates a drive unit (11) which compresses refrigerant and which is mounted by means of an arbitrary number of spring elements (4) on a mounting region (10), which is preferably arranged on the housing base (6), of the housing (9), wherein a first end region (4a) of the spring element (4) surrounds a peg-shaped upper mounting element (7) which is arranged on the drive unit (11), while a second end region (4b) of the spring element (4) surrounds a peg-shaped lower mounting element (8) which is arranged on the housing (9). To reduce a possible lateral deflection of the drive unit (11), it is provided according to the invention that end regions (5, 6), which face toward one another and are surrounded by the spring element (4), of the two mounting elements (7, 8) overlap one another in the axial direction of the spring element (4) when the drive unit (11) is in the mounted position.