Center Disk Spindle Double-Rotor Motor Stator Assembly
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing dual-rotor motors face challenges such as complex manufacturing processes, low energy efficiency, poor heat dissipation, and limited space utilization due to their traditional design with a single mechanical port, which hinders their application in high-power, compact, and efficient motor systems.
Innovation Solution
A stator assembly with a through slot and oriented silicon steel sheets, combined with a copper foil winding and a bearing system, enhances magnetic efficiency and heat dissipation, while a center disk spindle double-rotor motor design incorporates a heat dissipation assembly and neodymium magnets for improved performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a traditional dual-rotor motor design with two mechanical ports is used, then motor power and space utilization are improved, but the manufacturing process becomes complex and control difficulty increases
Solution Approach 1:
The patent merges the stator and rotor structures by integrating the stator core directly into the rotor assembly, forming a unified magnetic circuit structure. This integration eliminates the need for separate mechanical ports and simplifies the manufacturing process while maintaining the dual-rotor configuration for enhanced power output
Solution Approach 2:
The integrated stator-rotor structure serves multiple functions simultaneously: it provides the magnetic circuit path, supports the winding groups, and eliminates the need for separate mounting structures. This multi-functionality reduces the number of components and simplifies both manufacturing and control systems
2Loss of energy
If copper foil winding is used instead of traditional winding, then resistance decreases and thermal conductivity improves, but manufacturing precision requirements increase
Solution Approach 1:
The patent changes the material parameter from traditional copper wire to copper foil, which has superior electrical and thermal properties. The copper foil winding reduces resistance and enhances heat dissipation capability, directly addressing energy loss concerns while the integrated structure simplifies the precision requirements
3Use of energy by moving object
If oriented silicon steel sheets are used for the stator core, then magnetic conductivity and saturation improve, but iron loss characteristics change
Solution Approach 1:
The patent applies oriented silicon steel sheets specifically in regions where high magnetic conductivity is critical, while using non-oriented silicon steel sheets in other areas. This localized material selection optimizes the magnetic circuit performance in key areas while balancing the overall iron loss characteristics of the motor
4Volume of moving object
If the stator core has no spatial restriction to the winding group, then space utilization improves and structure becomes compact, but manufacturing complexity increases
Solution Approach 1:
The patent nests the winding groups directly within the integrated stator-rotor structure, allowing the windings to be positioned without spatial restrictions from traditional stator housings. This nesting approach maximizes space utilization and creates a compact structure while the integration simplifies the overall manufacturing process
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 proposed solution results in a more compact, efficient, and high-power motor with enhanced heat dissipation and reduced magnetic flux leakage, achieving higher efficiency and power density with simplified manufacturing and improved torque characteristics.
Implementation Method 1
the stator core uses an oriented silicon steel sheet that has lower iron loss and higher magnetic conductivity and magnetic saturation
Implementation Method 2
the winding group is a copper foil winding; a copper foil has lower resistance and no high-frequency skin effect, and has better thermal conductivity through higher current
Implementation Method 3
a copper foil has lower resistance and no high-frequency skin effect, and has better thermal conductivity through higher current, so that the motor temperature rise is lower
Implementation Method 4
a first mounting hole is provided with a bearing shell; the bearing shell is provided with a bearing; relative rotation between the bearing shell and a motor transmission shaft can be realized
Data Source
AI summary
A stator assembly and a center disk spindle double-rotor motor, includes a stator carrier and a winding core body; a through slot is formed in an end surface of the stator carrier in a penetrating manner; and the winding core body is arranged in the through slot. The center disk spindle double-rotor motor includes a transmission shaft, a stator assembly and rotor assemblies; the stator assembly is arranged on the transmission shaft; the transmission shaft can rotate relative to the stator assembly; the transmission shaft is fixedly provided with the rotor assemblies on two sides of the stator assembly. The whole center disk spindle double-rotor motor uses a double-rotor structure; and by means of the stator assembly of a specific structure, and in combination with the rotor assembly, the motor has beneficial effects of high efficiency, high power, large torque, low loss, light mass, good heat dissipation and the like.