Coiled Power Supply Path for Moving Optical Element Drives
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Solution Overview
Problem
The positional relationship between a movable part and a board part in an optical element driving apparatus deviates due to the movement of the movable part, disrupting power supply.
Innovation Solution
A power supply path part with a coil part that is extendable and contractible, connecting terminals on the board part and movable part, ensuring a stable power supply despite the movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rigid power supply path part is used to connect the board part and movable part, then the power supply connection is stable when stationary, but the positional relationship deviates and power supply is disrupted when the movable part moves
Solution Approach 1:
The power supply path part is designed with a coil part that can dynamically change its shape between extended and contracted states. This dynamic structure allows the power supply path to adapt to the movement of the movable part while maintaining continuous electrical connection, resolving the contradiction between stability and adaptability.
Solution Approach 2:
The coil part changes its physical parameters (length and shape) in response to the movement of the movable part. When the movable part moves, the coil part extends or contracts to maintain the electrical connection, thereby adapting to positional changes while ensuring continuous power supply.
2Reliability
If the movable part moves within a predetermined range, then the optical element can correct shake effectively, but the positional relationship between the connection portion and board part deviates
Solution Approach 1:
The power supply path part utilizes a flexible coil structure that can deform to accommodate the movement of the movable part. This flexible structure maintains electrical connection despite the positional deviations that occur during shake correction operations.
3Device complexity
If a rigid connection is used between board part and movable part, then the structure is simple, but the power supply path cannot accommodate movement and connection is lost
Solution Approach 1:
The coil part provides a dynamic connection solution that maintains electrical continuity during movement. The coil structure naturally accommodates positional changes through its ability to extend and contract, ensuring continuous power supply without complex additional components.
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 effectively absorbs deviations in the positional relationship between the movable part and the board part, maintaining a stable power supply during the movement of the movable part.
Implementation Method 1
a power supply path part that forms a power supply path between the board part and the movable part by extending so as to connect a terminal on a side of the board part and a terminal on a side of the movable part, which are disposed away from each other in the second direction, and includes a coil part in at least a portion, where the coil part is extendable and contractible in accordance with movement of the movable part
Data Source
AI summary
This optical element drive device comprises: a movable part; a drive unit; a substrate part that can supply power to the movable part; and a power supply path unit that constitutes a power supply path between the substrate part and the movable part by extending so as to connect a substrate-part-side terminal and a movable-part side terminal that are set apart from each other in a second direction, the power supply path unit having in at least a portion a coil part that can extend and contract in accordance with the movement of the movable part.