Split-Core Stator Wiring Layout With Integrated Coil Connectors

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Solution Overview

Problem

Existing motor stators face challenges with complex wiring structures, increased manufacturing costs due to the use of separate components like printed circuit boards and tubes for insulation, and potential gaps and vibrations between wires, leading to inefficiencies and higher material usage.

Innovation Solution

A stator design featuring split cores with integrated power and neutral line connectors, insulators with wire guides, and connection members to facilitate easy wiring and maintain insulation distances, reducing material usage and preventing wire interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If separate components (PCBs, tubes) are used for wiring and insulation, then insulation between stator core and stator coil is achieved, but manufacturing cost increases and device complexity increases

Engineering Contradiction:
Improveinsulation between stator core and stator coilVSAvoidwiring structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the insulation function and wiring function into a single integrated insulator structure. The insulator includes built-in wire guides and connectors that directly guide and connect the stator coil wires to the power supply, eliminating the need for separate PCBs and protective tubes. This merging reduces device complexity while maintaining insulation reliability.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The insulator is designed as a multi-functional component that simultaneously provides electrical insulation, mechanical support for wire routing, and electrical connection functions. The wire guides and connectors are integrated into the insulator body, allowing a single component to perform multiple functions that previously required separate parts.

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

2Reliability

If separate components (PCBs, tubes) are used for wiring and insulation, then insulation is ensured, but manufacturing cost increases

Engineering Contradiction:
Improveinsulation between stator core and stator coilVSAvoidmanufacturing cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

By merging multiple functions into a single insulator component, the patent reduces the total number of parts that need to be manufactured, stored, and assembled. This integration simplifies the manufacturing process and reduces material costs while maintaining the necessary insulation and wiring functions.

Inventive Principle:
Principle #5Merging (Combining)

3Volume of moving object

If wires are closely arranged in stator coil, then space utilization is improved, but gaps and vibrations between wires occur

Engineering Contradiction:
Improvespace utilization of stator coilVSAvoidwire stability
Core Design Contradiction:
Volume of moving objectVSStability of the object's composition

Solution Approach 1:

The wire guides integrated into the insulator act as intermediaries that maintain optimal spacing between adjacent wires in the stator coil. These guides ensure wires are properly positioned and spaced, preventing gaps and vibrations while maintaining efficient space utilization within the stator assembly.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Reliability

If complex wiring structure is used, then insulation is ensured, but time and efforts for wiring increase

Engineering Contradiction:
Improveinsulation between phasesVSAvoidwiring time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The insulator is pre-configured with integrated wire guides and connectors in predetermined positions. This preliminary arrangement of wiring paths and connection points simplifies the actual wiring process, as wires can be directly routed through the guides and connected to terminals without requiring complex assembly steps or additional insulation measures.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS12483076B2Stator for motor
Publication Date: 2025.11.25 LG ELECTRONICS INC
  • US12483076B2 patent drawing
  • US12483076B2 patent drawing
  • US12483076B2 patent drawing

AI summary

A stator of a motor include a first split core including first teeth, a second split core including second teeth and facing the first split core to define a rotor accommodating hole with the first split core, a first insulator disposed at the first split core, a second insulator disposed at the second split core, phase coils that are wound around the first teeth and the second teeth, respectively, and are configured to connect to a three-phase alternating current (AC) power supply, power line connectors that are disposed at the first insulator and configured to connect the phase coils to the three-phase AC power supply, and a neutral line connector that is disposed at the second insulator and connected to the phase coils.