Lens Module Elastic Suspension for Signal Stability
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Solution Overview
Problem
The challenge in lens modules equipped with automatic focus and optical image stabilization functions is maintaining stable electrical signal transmission during the movement of lens components, as flexible printed circuits (FPCs) can be affected by mechanical stress, leading to poor signal transmission.
Innovation Solution
The introduction of an elastic suspension component and conductive members that establish a stable electrical signal transmission channel between the focus control circuit board and the anti-shake control circuit board, allowing for normal signal transmission even during lens movement, by using an elastic suspension component to connect the lens component to the base and embedding conductive members for secure electrical connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a flexible printed circuit (FPC) is used to connect the focus control circuit to external circuits, then ease of operation and flexibility are improved, but reliability deteriorates due to signal transmission issues during lens component movement
Solution Approach 1:
The patent introduces an elastic suspension component as an intermediary between the focus control circuit board and the base. This elastic suspension component includes conductive portions that establish a stable electrical connection while accommodating the movement of lens components, thereby preventing signal transmission disruptions without requiring a flexible printed circuit
Solution Approach 2:
The elastic suspension component serves multiple functions: it provides mechanical support to suspend the lens component, allows for movement accommodation, and simultaneously acts as an electrical conductor to transmit signals. This multi-functional design eliminates the need for separate FPC while maintaining both flexibility and reliability
2Adaptability or versatility
If the lens component is allowed to move for focus and anti-shake functions, then adaptability is improved, but reliability deteriorates due to FPC being pulled during movement
Solution Approach 1:
The patent employs an elastic suspension component that dynamically adapts to the movement of lens components during focusing and anti-shake operations. The elastic nature of the suspension component allows it to stretch and flex with the movement while maintaining continuous electrical contact, ensuring reliable signal transmission throughout the range of motion
Solution Approach 2:
The elastic suspension component acts as a mediator between the stationary base and the moving lens component. It absorbs mechanical stress from movement through its elastic deformation while maintaining electrical connectivity, thereby protecting the electrical connection from the harmful effects of pulling and displacement
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
This solution ensures reliable electrical signal transmission between the focus control circuit and external circuits, preventing signal disruptions caused by mechanical stress, thus enhancing the stability and accuracy of camera functions.
Implementation Method 1
an elastic suspension component connected to the base; the lens component is connected to the base through the elastic suspension component
Implementation Method 2
the focus control circuit board is electrically connected to the anti-shake control circuit board through the second conductive member, the elastic suspension component and the first conductive member in sequence
Data Source
AI summary
Embodiments of the present disclosure disclose a lens module and an electronic device. The lens module includes a base, an elastic suspension component and a lens component. The base is provided with an anti-shake control circuit board and a first conductive member. The elastic suspension component is connected to the base. The lens component is connected to the base through the elastic suspension component. The lens component includes an anti-shake bracket connected to the elastic suspension component, a focus control circuit board and a second conductive member arranged on the anti-shake bracket. The focus control circuit board is electrically connect to the anti-shake control board through the second conductive member, the elastic suspension component and the first conductive member in sequence. The lens module and the electronic device can avoid the poor condition of electrical signal transmission during the movement of the lens component due to the use of FPC.