Input Device Integrating Magnetic Vibration and Capacitive Detection
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Solution Overview
Problem
The existing input devices have a complex structure with many components due to separate mechanisms for operation position detection and vibration provision, leading to increased complexity and component count.
Innovation Solution
An input device design that integrates operation position detection and vibration provision using a magnetic member, a load detection unit, and a drive unit with a coil on a shared substrate, where the load detection unit includes an operation deformation portion and detection electrodes, and the drive unit generates a magnetic field to drive the magnetic member, reducing the number of components and simplifying the structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate mechanisms are used for operation position detection and vibration provision, then detection precision and vibration provision are ensured, but device complexity increases
Solution Approach 1:
The patent combines the operation position detection mechanism and vibration provision mechanism into a single integrated structure. The operation unit serves dual purposes: detecting operation positions through capacitance changes and providing vibration feedback through an integrated vibration mechanism, thereby reducing device complexity while maintaining functional reliability
Solution Approach 2:
The operation unit is designed to perform multiple functions simultaneously. It acts as both a detection element for operation positions and a vibration provision element, making the structure universal and multi-functional to reduce the overall number of components needed in the input device
2Reliability
If separate mechanisms are used for operation position detection and vibration provision, then functional reliability is maintained, but the number of components increases
Solution Approach 1:
The patent merges the detection mechanism and vibration mechanism into one integrated operation unit, reducing the total number of components while ensuring that both detection and vibration functions remain reliable through their coordinated design within the same structural framework
3Device complexity
If integration is implemented to reduce components, then device complexity decreases, but sensitivity may be compromised
Solution Approach 1:
The patent applies local quality by optimizing specific regions of the operation unit. The operation unit includes specially designed areas with different capacitance characteristics that enhance detection sensitivity in critical zones while maintaining the integrated structure, ensuring that integration does not compromise measurement precision
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 integration reduces the number of components, simplifies the structure, and enhances sensitivity while maintaining vibration provision capabilities, resulting in a thinner and more cost-effective input device.
Implementation Method 1
at least one load detection unit to detect a load on the operation unit and detect the load according to capacitance between a pair of conductors
Implementation Method 2
a drive unit comprising a coil to generate a magnetic field for driving the magnetic member
Implementation Method 3
a drive unit comprising a coil to generate a magnetic field for driving the magnetic member
Data Source
AI summary
An input device includes an operation unit to receive an operation, the operation unit including a magnetic member having a magnetic property, at least one load detection unit to detect a load on the operation unit and detect the load according to capacitance between a pair of conductors, a substrate on which an electrode as one of the pair of conductors of the load detection unit is arranged, and a drive unit including a coil to generate a magnetic field for driving the magnetic member. The coil is arranged on the substrate.