Wireless Transmission Device for Robot Arm 360 Rotation
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Solution Overview
Problem
Current robot arm technologies face limitations due to the need for complex cable arrangements, which restrict the arm's rotation to less than 360 degrees and can lead to issues like poor contact and short circuits, reducing the reliability and durability of the robot.
Innovation Solution
A wireless transmission device using electromagnetic coupling between windings to combine power and control signals into a composite signal, eliminating the need for individual power and data transmission lines, allowing for unrestricted 360-degree rotation of the robot arm.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If physical cables are arranged in the robot arm to transmit power and control signals, then power and data transmission can be achieved, but the robot arm's rotation is restricted to less than 360 degrees and the complexity of cable arrangement increases
Solution Approach 1:
The patent replaces the mechanical cable transmission system with an electromagnetic field-based wireless power and data transmission system. The rotating unit with electromagnetic coupling transmits power and signals wirelessly between arm members, eliminating the need for physical cables and their associated routing complexity while enabling unrestricted 360-degree rotation.
2Ease of operation
If physical cables are arranged in the robot arm, then power and control signals can be transmitted, but the freedom of motion of arm members is restricted
Solution Approach 1:
The patent substitutes mechanical cable connections with electromagnetic coupling for wireless transmission. This allows arm members to rotate freely through 360 degrees without cable restriction, as the electromagnetic field can penetrate and transmit energy and data through the air gap between rotating components.
3Reliability
If a large amount of cables are arranged in the robot arm to transmit power and data, then transmission requirements can be met, but poor contact or short circuit problems occur reducing durability
Solution Approach 1:
The patent eliminates mechanical cable contacts by using electromagnetic coupling for wireless transmission. This removes the sources of poor contact and short circuits that plague cable-based systems, as there is no physical wear, friction, or connection points that can degrade over time.
4Ease of manufacture
If separate power and data transmission lines are arranged in the robot arm, then power and control signals can be transmitted independently, but the layout becomes complicated
Solution Approach 1:
The patent combines power transmission and data communication into a unified wireless transmission system using electromagnetic coupling. The rotating unit transmits both energy and information simultaneously through the same electromagnetic field, eliminating the need for separate cable routing for power and data signals.
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 solution enables free rotation of the robot arm without wiring constraints, enhancing its reliability and durability by simplifying the transmission of energy and data through electromagnetic coupling, eliminating the risk of poor contact and short circuits.
Implementation Method 1
The electromagnetic coupling between the first winding and the second winding is used for transmitting energy and data
Data Source
AI summary
A wireless transmission device for use in a robot arm is disclosed to include a rotating unit including a first winding and a second winding relatively rotatably arranged in a coaxial manner, and two receiver-transmitter units respectively electrically connected to the first winding and the first winding for receiving a composite signal and then generating a power signal and a control signal. Thus, the receiver-transmitter units can transmit power and data in two ways by means of an electromagnetic coupling between the first winding and the second winding, having the advantages of simple structure and no need for wiring, and allowing the robot arm using the wireless transmission device to be freely rotated through 360 degrees.