Gimbal Head Wiring Layout With Constant-Length Flexible PCB
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Solution Overview
Problem
Existing gimbal driving devices have complex wiring structures due to the structural redundancy and axial size issues of brushless external-rotor motors, leading to increased complexity and size, which complicates the design and aesthetics of the gimbal system.
Innovation Solution
A gimbal driving device with a flexible wiring board connected between the holding arm and the connecting frame, allowing the length to remain unchanged during the swinging of the imaging device, and integrating the motor and connector onto the gimbal, resulting in a more compact and simplified wiring design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If brushless external-rotor motors are used to drive the gimbal, then the motor provides sufficient power and reliable operation, but the structural redundancy and fixed motor structure lead to increased axial size and wiring complexity
Solution Approach 1:
The patent integrates the motor and connector into a unified integrated motor-connector assembly. The motor shaft directly connects to the connector shaft, eliminating separate coupling structures and reducing wiring complexity while maintaining reliable motor operation. This merging of functions directly addresses the contradiction by reducing device complexity without sacrificing reliability.
Solution Approach 2:
The integrated motor-connector design serves multiple functions simultaneously: the motor provides driving power, the integrated connector enables signal transmission, and the unified structure reduces overall axial size. This multi-functionality approach resolves the contradiction by achieving reliable motor operation while simplifying the overall wiring structure and reducing component count.
2Reliability
If traditional rigid wiring structures are used in the gimbal, then the wiring provides stable electrical connection, but the rigid structure increases wiring complexity and affects the aesthetic appearance
Solution Approach 1:
The patent replaces rigid wiring structures with flexible wiring boards that can dynamically adapt to the gimbal's movement and rotation. The flexible wiring board maintains stable electrical connections while accommodating the dynamic motion of the gimbal components, thereby reducing wiring complexity and improving aesthetic appearance without compromising connection stability.
Solution Approach 2:
The patent employs flexible wiring boards instead of traditional rigid wires and cables. These flexible thin film structures provide stable electrical connections while being adaptable to the gimbal's motion, reducing overall wiring complexity and improving the aesthetic appearance by eliminating bulky rigid wiring structures.
3Strength
If separate coupler structures are designed to connect the motor to the load, then the connection is secure, but the structural redundancy increases the axial size of the gimbal
Solution Approach 1:
The patent merges the motor structure with the connector structure into a single integrated assembly. The motor shaft directly interfaces with the connector shaft, eliminating the need for separate coupler structures. This integration maintains secure mechanical connection while significantly reducing the axial size of the gimbal by removing redundant components.
Solution Approach 2:
The patent extracts and eliminates the separate coupler component from the traditional motor-load connection system. By integrating the connection function directly into the motor-connector assembly, the design removes the redundant coupler structure that would increase axial size, while maintaining secure connection through the integrated design.
Data Source
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AI summary
The present invention relates to a gimbal driving device comprising a holding arm, a first motor, a connecting frame for fixing an imaging device, a connector and a flexible wiring board. The first motor may comprise a shaft, a rotor holder connected with the shaft, and a shaft cover fixed to the holding arm, wherein the shaft may bring the rotor holder into swinging; the connecting frame may be fixed to the rotor holder to bring the imaging device into swinging; the connector may be connected between the shaft and the connecting frame; and the flexible wiring board may have one end connected to the holding arm and the other end thereof connected to the connecting frame, wherein a length of the flexible wiring board may remain unchanged while the imaging device is swinging. The invention also relates to a gimbal assembly using the gimbal driving device.