Wireless Transmission Stator Rotor for Pick-and-Place Turret
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Solution Overview
Problem
Traditional pick-and-place apparatuses for LED devices face challenges in avoiding mechanical damage and throughput limitations due to mechanical contact and the adverse effects of slip ring modules, which can lead to deformation, scratching, and reduced machine efficiency.
Innovation Solution
A wireless transmission system is introduced, utilizing a rotary turret with a transmission stator and rotor to transmit data and power wirelessly across an air gap, allowing the pick arms to rotate unidirectionally without physical cables, thereby avoiding mechanical contact and enhancing machine throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a slip ring module is used to transfer electrical signals and power through physical conductive contact, then the pick arms can be actuated during rotation, but the lifetime of the slip ring module is shortened due to friction and it is hard to replace
Solution Approach 1:
The patent replaces the mechanical slip ring contact system with a wireless transmission system using electromagnetic fields. The stator and rotor each have coils that generate magnetic fields to transfer power and data signals without physical contact, eliminating friction and wear while maintaining the ability to actuate pick arms during rotation.
2Manufacturing precision
If a gear and motor engagement system is used to orientate LED units, then angular alignment can be corrected, but the machine's throughput is seriously slowed down
Solution Approach 1:
The patent replaces the mechanical gear engagement system with a wireless motor actuation system. Motors mounted on the rotary turret can independently and simultaneously orient multiple pick arms using wireless power and control signals, eliminating the sequential gear engagement process and dramatically improving throughput while maintaining precision angular alignment.
3Object-affected harmful factors
If multiple pick arms with independent rotary capability are used to correct angular alignment without mechanical contact, then LED units are protected from damage, but a wireless transmission system is required which adds system complexity
Solution Approach 1:
The patent integrates multiple functions into the wireless transmission system: the same stator-rotor coil arrangement handles both power transmission and data communication bidirectionally. The system simultaneously provides wireless power to motors, transmits control signals for pick arm actuation, and receives feedback signals, reducing overall system complexity despite the advanced technology used.
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 wireless transmission system enables precise angular adjustment and prolonged module lifetime, improving machine throughput and reducing the risk of mechanical damage during LED unit placement, while maintaining optimal optical properties.
Implementation Method 1
the transmission stator and the transmission rotor are configured to transmit data signals wirelessly across the air gap
Implementation Method 2
configured to transmit data signals wirelessly across the air gap for driving the at least one motor
Data Source
AI summary
A pick-and-place apparatus has a rotary turret and a plurality of pick arms arranged on the rotary turret for picking up and placing electronic devices during pick and place operations. A transmission stator and a transmission rotor are mounted on the rotary turret with an air gap between the transmission stator and the transmission rotor such that the transmission rotor is rotatable relative to the transmission stator. At least one motor for actuating at least one pick arm during the pick and place operations is operatively coupled to the transmission rotor. The transmission stator and the transmission rotor are configured to transmit data signals wirelessly across the air gap for driving the at least one motor to actuate the at least one pick arm.