Multi-Rotor Motor Connector With Anti-Rotation Locking Disc
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Solution Overview
Problem
The connection between the motor and arm of multi-rotor aircraft is unreliable, complex, and difficult to install, with issues such as bolt loosening and fracture due to complex aerodynamic forces, and limited space for wiring and routing of large wiring harnesses.
Innovation Solution
A connector system comprising a base, locking disc components, and guiding positioning components with forward and reverse structures, using threaded connections and anti-rotation features to ensure stable installation and prevent stator rotation during assembly, thereby avoiding wiring entanglement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If bolts are installed radially on the stator of the motor for fixing, then the motor can be connected to the arm, but the connection becomes unreliable due to bolt loosening and fracture under complex multi-physics field coupling
Solution Approach 1:
The connector is divided into multiple functional components: a base component connected to the arm, a motor component connected to the motor, and a locking component with locking blocks that engage with grooves. This segmentation allows each component to perform its specific function independently, improving connection reliability while maintaining manageable complexity.
Solution Approach 2:
The locking blocks are pre-positioned on the locking component before assembly. During assembly, these pre-positioned locking blocks automatically engage with the grooves on the base component, ensuring proper alignment and preventing motor rotation during the connection process without requiring additional adjustment steps.
2Reliability
If a complex connector structure is used to ensure reliable connection, then connection stability improves, but production and installation become more difficult
Solution Approach 1:
The connector is divided into modular components (base, motor component, locking component) that can be manufactured separately using standard machining processes and then assembled together. This segmentation simplifies production of individual parts while achieving reliable connection through their coordinated assembly.
Solution Approach 2:
The locking component acts as an intermediary element between the base and motor component. It features locking blocks that engage with grooves on the base, providing a simple mechanical interlocking mechanism that ensures connection stability without requiring complex manufacturing processes.
3Ease of operation
If the motor is fixed using radial bolts on the stator, then connection is achieved, but the stator rotates during assembly causing wiring entanglement
Solution Approach 1:
The locking blocks are pre-positioned on the locking component before assembly. During assembly, these pre-positioned locking blocks automatically engage with the grooves on the base, ensuring proper alignment and preventing motor rotation during the connection process without requiring additional adjustment steps.
Solution Approach 2:
The locking component acts as an intermediary element between the base and motor component. It features locking blocks that engage with grooves on the base, providing a simple mechanical interlocking mechanism that ensures connection stability without requiring complex manufacturing processes.
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 system provides a reliable and stable connection between the motor and arm, ensuring accurate installation without stator rotation and wiring entanglement, enhancing the durability and ease of assembly.
Implementation Method 1
another end of the forward locking disc structure is inserted into a forward end of the base through the forward guiding positioning structure and connected to the forward end of the base through forward threads
Implementation Method 2
the guiding positioning component ensures accurate motor installation and positioning with no rotation of the stator of the motor
Data Source
AI summary
The provided is a connector and a method for connecting a motor and an arm of multi-rotor aircraft. The connector includes a base, a locking disc component, and a guiding positioning component; one side of the base is connected to the arm, the locking disc component includes a forward locking disc structure and a reverse locking disc structure; the guiding positioning component includes a forward guiding positioning structure and a reverse guiding positioning structure; the forward guiding positioning structure and the reverse guiding positioning structure are respectively embedded in the forward locking disc structure and the reverse locking disc structure, and one end of the forward locking disc structure is connected to a forward propeller motor, another end of the forward locking disc structure is inserted into a forward end of the base through the forward guiding positioning structure and connected to the forward end of the base.