Compressor Baseplate Annular Rib Mounting

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Solution Overview

Problem

Conventional compressor housings with domed shapes require additional mounting feet or spacers to maintain upright positioning during handling and mounting, increasing overall height and necessitating complex mounting systems, especially in tandem or multiple compressor configurations.

Innovation Solution

A compressor assembly with a base plate featuring an annular rib and convex central portion, allowing direct mounting onto base rails without additional feet or spacers, providing structural strength and increased oil volume without height increase, fabricated from sheet metal with integrated stiffening features.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If additional mounting feet or spacers are added to domed compressor housings, then the compressor can be mounted upright, but the overall height increases and device complexity increases

Engineering Contradiction:
Improvemounting capabilityVSAvoidoverall height
Core Design Contradiction:
Ease of operationVSLength of stationary object

Solution Approach 1:

The base plate merges the mounting function with the housing structure itself. The flat outer peripheral region of the base plate serves as both the mounting surface for attaching the compressor to rails and the structural base, eliminating the need for separate mounting feet or spacers. This integration resolves the contradiction by providing mounting capability without increasing overall height.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The base plate utilizes the radial dimension by extending outward from the central dome to create a flat outer peripheral region. This dimensional approach allows the mounting surface to be distributed laterally rather than vertically, enabling stable mounting without increasing the compressor's height dimension.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Ease of operation

If additional mounting feet or spacers are added to domed compressor housings, then the compressor can be mounted upright, but device complexity increases

Engineering Contradiction:
Improvemounting capabilityVSAvoidmounting system complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The base plate combines multiple functions into a single component: it serves as the housing bottom, provides structural support through the central dome, creates oil reservoir space, and provides the mounting surface through its flat outer peripheral region. This multi-functionality eliminates the need for separate mounting feet, spacers, or adapters, thereby reducing device complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The base plate is designed as a universal component that performs multiple functions simultaneously - housing containment, oil reservoir formation, and mounting surface provision. This multi-functional design simplifies the overall mounting system by eliminating the need for multiple specialized components.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Ease of manufacture

If the base plate is made from thinner sheet metal, then manufacturing efficiency improves, but structural strength decreases

Engineering Contradiction:
Improvemanufacturing efficiencyVSAvoidbase plate strength
Core Design Contradiction:
Ease of manufactureVSStrength

Solution Approach 1:

The central dome structure utilizes curved sheet metal formation to create a rigid, load-bearing structure. The domed shape inherently provides structural strength while allowing the use of thinner gauge material compared to flat plates, as the curvature distributes stresses more effectively.

Inventive Principle:
Principle #14Spheroidality (Curvature)

Solution Approach 2:

The base plate features varying structural characteristics in different regions: the central dome provides rigid support and oil reservoir containment, while the flat outer peripheral region provides mounting surface area. This local differentiation allows optimization of material usage - thinner gauge can be used in the flat mounting region while maintaining sufficient thickness in the domed support region.

Inventive Principle:
Principle #3Local quality

Data Source

PatentEP2864637B1Compressor baseplate with stiffening ribs for increased oil volume and rail mounting without spacers
Publication Date: 2023.08.23 BITZER KUEHLMASCHINENBAU GMBH
  • EP2864637B1 patent drawingFigure 1~2
  • EP2864637B1 patent drawingFigure 3
  • EP2864637B1 patent drawingFigure 4

AI summary

A compressor that includes a housing with a plurality of attached shell sections which define an internal volume of the compressor. In the housing, compressor bodies have respective surfaces which mutually engage. The compressor includes a drive unit disposed in the housing. The drive unit has a motor to provide a mechanical output on a drive shaft. The drive shaft drives one of the compressor bodies to facilitate relative movement for the compression of fluid. In an embodiment, the plurality of shell sections includes a base plate having an annular rib, which locates a tubular central shell section of the plurality of attached shell sections.