Bifunctional Motor Support and Radiator for Coaxial Alignment

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Solution Overview

Problem

Electric motors in air blower devices often suffer from poor coaxiality between the rotor and stator, leading to jerky rotation and potential engine malfunctions due to the lack of a unified support and cooling system.

Innovation Solution

A bi-functional part that integrates both the radiator and support element for the rotor and stator, allowing for a single, unified component that provides both structural support and cooling, ensuring precise coaxial alignment and efficient heat dissipation through a flow of air or fluid.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If separate radiator and support element are used, then manufacturing flexibility is improved, but coaxiality between rotor and stator deteriorates

Engineering Contradiction:
Improvemanufacturing flexibilityVSAvoidcoaxiality between rotor and stator
Core Design Contradiction:
Ease of manufactureVSManufacturing precision

Solution Approach 1:

The patent combines the radiator and support element into a single integrated component. The support element has a hollow cylindrical shape that serves dual purposes: providing structural support for the rotor and stator while simultaneously functioning as a radiator with internal channels for coolant flow. This merging eliminates the need for separate positioning operations between two components, ensuring precise coaxiality is inherently achieved through the monolithic structure.

Inventive Principle:
Principle #5Merging (Combining)

2Ease of repair

If multiple separate components are used, then ease of repair is improved, but device complexity increases

Engineering Contradiction:
Improvecomponent replaceabilityVSAvoidnumber of parts
Core Design Contradiction:
Ease of repairVSDevice complexity

Solution Approach 1:

The support element integrates multiple functions into a single component: structural support, radial positioning, and thermal dissipation. By combining the radiator and support element, the patent reduces the total number of parts while maintaining the ability to service the motor, as the integrated component eliminates alignment issues that would complicate assembly and disassembly during maintenance.

Inventive Principle:
Principle #5Merging (Combining)

3Ease of manufacture

If separate radiator and support element are used, then manufacturing cost is reduced, but operational reliability deteriorates

Engineering Contradiction:
Improvemanufacturing costVSAvoidoperational reliability
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The integrated support element and radiator ensure reliable operation by eliminating potential misalignment between separate components. The monolithic structure guarantees precise coaxial positioning of the rotor and stator, preventing operational issues such as vibration and uneven wear. The integration also ensures consistent thermal management, as the coolant channels are precisely formed within the support structure itself.

Inventive Principle:
Principle #5Merging (Combining)

4Manufacturing precision

If unified bi-functional part is used, then manufacturing precision is improved, but manufacturing complexity increases

Engineering Contradiction:
Improvecoaxial alignment precisionVSAvoidcomponent integration complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The support element is designed as a multi-functional component that simultaneously provides structural support, radial positioning, and thermal dissipation. The hollow cylindrical shape with internal channels allows it to serve as both a mechanical support structure and a radiator, achieving multiple functions in a single geometric form that is manufactured as one piece.

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

Solution Approach 2:

The patent merges the radiator and support element into a single integrated component. The support element has a hollow cylindrical shape that serves dual purposes: providing structural support for the rotor and stator while simultaneously functioning as a radiator with internal channels for coolant flow. This merging eliminates the need for separate positioning operations between two components, ensuring precise coaxiality is inherently achieved through the monolithic structure.

Inventive Principle:
Principle #5Merging (Combining)

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 solution enhances the reliability and homogeneity of the motor's operation by ensuring precise coaxiality and effective cooling, reducing manufacturing complexity and improving the motor's performance by eliminating the need for separate radiator and support elements.

Implementation Method 1

a flow of air (10) allowing the cooling of said motor (101)... the flow of fluid passing through the motor support cools the radiator and that said radiator cools said electronic organ

Methodology Applied
Scientific EffectConvection: Convection

Implementation Method 2

the bi-functional part is made of metal. Thus, the base acting as a radiator can effectively cool the electronic component by thermal conduction

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentEP3130056B1Electric motor, device of air ventilation and ventilation system of heating and/or air conditioning of such motor
Publication Date: 2020.08.12 VALEO SYST THERMIQUES SAS
  • EP3130056B1 patent drawingFigure 1
  • EP3130056B1 patent drawingFigure 2~3
  • EP3130056B1 patent drawingFigure 4

AI summary

The invention relates to an electric motor (100) comprising a stator (2) and a rotor (3), the rotor (3) being arranged around the stator (2), an element (9) for supporting said rotor (3) and said stator (2), a motor support (5) through which a stream of fluid flows, a radiator (8) and an electronic body (7), said radiator (8) being inserted between said motor (100) support (5) and said electronic body (7), characterised in that the element (9) for supporting the rotor (3) and the stator (2), and the radiator (8), form the same so-called bifunctional part (30).