Device for driving a compressor and method for assembling the device
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Solution Overview
Problem
Conventional electrically driven compressors for climate-control systems in vehicles face issues with insulation flaws and high component complexity, leading to reduced insulation resistance, potential short circuits, and increased costs due to the use of multiple individual insulation elements and components.
Innovation Solution
A single-part insulation element is integrated with the stator core, forming a durable, inseparable component that ensures electrical isolation and guides conducting wires, reducing the need for additional components and simplifying the manufacturing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple individual insulation elements are used to ensure electrical isolation, then insulation resistance is improved, but device complexity and component quantity increase
Solution Approach 1:
The patent combines multiple separate insulation elements into a single integrated insulation component that surrounds the stator core. This single insulation element performs the function of multiple separate insulators, reducing component quantity while maintaining the necessary electrical isolation and insulation resistance between conducting wires and the stator core.
Solution Approach 2:
The single insulation element serves multiple functions simultaneously: it provides electrical insulation between the stator core and conducting wires, mechanically supports the conducting wires, and guides their routing. This multi-functional design eliminates the need for separate insulation elements, fasteners, and guides, thereby reducing overall device complexity.
2Reliability
If multiple individual insulation elements and components are used, then electrical isolation is ensured, but manufacturing costs increase
Solution Approach 1:
By merging multiple insulation elements and supporting components into a single integrated insulation component, the patent reduces the total number of parts that need to be manufactured, stored, and assembled. This consolidation reduces manufacturing costs through fewer production steps, reduced inventory requirements, and simplified assembly processes while maintaining adequate electrical isolation.
3Reliability
If conducting wires are routed with multiple insulation elements, then insulation resistance is maintained, but assembly time and complexity increase
Solution Approach 1:
The insulation element is pre-formed with integrated conducting wire guides and routing channels that direct the conducting wires along their intended paths. This preliminary structuring of the insulation element eliminates the need for time-consuming assembly steps where workers would otherwise need to position multiple separate insulation elements and manually route wires, significantly reducing assembly time while maintaining insulation resistance.
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 insulation resistance, minimizes component flaws, and reduces production costs by eliminating the need for multiple insulation elements, while ensuring reliable electrical isolation and efficient compression of vaporous fluids.
Implementation Method 1
the insulation element is arranged between the conducting wires of the coils and the stator core to electrically insulate the conducting wires of the coils and the stator core with respect to one another
Implementation Method 2
The force causing the torque in an electric motor is caused by a magnetic field, which is generated by inductivities formed as coils
Implementation Method 3
The force causing the torque in an electric motor is caused by a magnetic field
Implementation Method 4
compressor for compressing a vaporous fluid
Data Source
AI summary
The invention relates to a device for driving a compressor of a vaporous fluid, particularly an electric motor. The device has a rotor and a stator, which are extended along a common longitudinal axis, as well as an insulation element. The insulation element is designed as a single part and connected with a stator core of the stator in a form-fitting manner such that the stator core and the insulation element form an integral and single-part component of the stator. The invention further relates to a method for producing a stator of the device, particularly the stator core with the insulation element.