Scroll Compressor Thrust Plate Positioning via Bolts
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In scroll compressors, the thrust plate and its peripheral components are prone to damage due to increased centrifugal force and thrust load, causing positional deviation and interference with the front housing.
Innovation Solution
A scroll compressor design featuring a cylindrical rear housing, a front housing with a plate placement surface, and bolts that restrict the thrust plate's position, along with a thrust plate having through-holes for the bolts' head parts, which suppresses displacement and interference, and includes a rotation suppressing member and claw parts for enhanced positional restriction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the thrust plate is interposed between the orbiting scroll and the front housing to suppress seizure, then the reliability is improved, but the thrust plate position deviates due to centrifugal force and thrust load, causing interference with the front housing
Solution Approach 1:
The patent introduces bolts as intermediary elements to connect the thrust plate to the front housing. These bolts act as mediators that transmit and stabilize the position of the thrust plate, preventing it from deviating due to centrifugal force and thrust load while maintaining its seizure-suppressing function.
Solution Approach 2:
The thrust plate is positioned and secured to the front housing using bolts before the compressor operates. This preliminary positioning action ensures that the thrust plate remains stable during operation, preventing position deviation and interference with the front housing while maintaining its seizure suppression capability.
2Stability of the object's composition
If the thrust plate is secured to the front housing to maintain position, then the positional stability is improved, but the thrust plate and peripheral components may be damaged due to interference
Solution Approach 1:
The bolts serve as intermediary elements that securely connect the thrust plate to the front housing, maintaining positional stability while distributing mechanical loads. This intermediary connection prevents direct interference between the thrust plate and front housing, thereby protecting both the thrust plate and peripheral components from damage.
3Productivity
If the orbiting scroll is revolved and driven with respect to the fixed scroll to compress fluid, then the compression function is achieved, but centrifugal force increases causing thrust plate position deviation
Solution Approach 1:
The bolts act as intermediary elements that anchor the thrust plate to the front housing, counteracting the position deviation caused by centrifugal force generated during orbiting scroll operation. This allows the orbiting scroll to be driven effectively for fluid compression while maintaining thrust plate position stability.
Solution Approach 2:
The bolt connection provides a counteracting force against the centrifugal force generated by the orbiting scroll. This counterweight effect stabilizes the thrust plate position, preventing deviation caused by the rotational motion necessary for fluid compression.
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
The solution effectively suppresses damage to the thrust plate and its peripheral components by maintaining the thrust plate's position, reducing the risk of interference and deformation, and enhancing the reliability of the scroll compressor.
Implementation Method 1
if a centrifugal force becomes large due to the orbiting of the orbiting scroll and a thrust load is increased, the position of the thrust plate deviates from the recessed portion
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
This scroll compressor has: a housing (11); a fixed scroll (49) and a orbiting scroll (51) which are provided in a rear housing (32) of the housing (11); a ring-like thrust plate (27) disposed between an end plate (51A) of the orbiting scroll (51) positioned on the side opposite the side on which the fixed scroll (49) is provided, and a plate placement surface of a front housing (34); and a plurality of bolts (12) which are fastened to the plate placement part (42) partitioning the plate placement surface, and restrict the position of the thrust plate (27) with respect to the plate placement part (42).