Touch Pad Coil Layout for Slim Electromagnetic Vibration
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Solution Overview
Problem
The challenge is to design a touch module with electromagnetic induction vibration modules that can provide stable magnetic induction and effective vibration in slim, compact electronic products, while overcoming the difficulty of installing large-area coils and accurately aligning magnets within limited space.
Innovation Solution
The touch module incorporates multiple separate magnetic induction coils and corresponding magnets, with the coils directly connected to conductive points on the touch pad and interconnected in series or parallel through internal conductive circuits, eliminating the need for additional circuit boards or wires.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a large-area winding coil is installed to achieve stable magnetic induction capability, then the vibration efficacy is improved, but the overall space of the touch pad increases
Solution Approach 1:
The patent divides the single large-area coil into multiple separate magnetic induction coils (first magnetic induction coil and second magnetic induction coil). These segmented coils are distributed at different positions on the touch pad, allowing the system to achieve stable magnetic induction capability while reducing the overall space requirement compared to a single large coil.
2Area of stationary object
If the size of the coil and magnet are reduced to fit slim design, then the overall space is reduced, but the vibration efficacy is impaired
Solution Approach 1:
The patent combines multiple separate magnetic induction coils and magnets into a unified vibration system. By distributing these components across the touch pad and connecting them through conductive circuits, the system achieves coordinated vibration that maintains effective vibration output while fitting within the reduced space constraints of slim design.
3Reliability
If additional circuit boards or wires are used to connect magnetic induction coils, then the connection is reliable, but the device complexity increases
Solution Approach 1:
The patent merges the connection function into the touch pad itself by using internal conductive circuits and conductive points. The magnetic induction coils are directly connected to conductive points on the touch pad, which then connect to each other through the internal conductive circuits of the touch pad, eliminating the need for separate circuit boards or additional wires.
4Productivity
If multiple magnetic induction coils are connected in series, then the circuitry structure is simplified and driving speed is improved, but the control precision may be affected
Solution Approach 1:
The patent provides flexible connection configurations where multiple magnetic induction coils can be connected in series or in parallel depending on the specific application requirements. This dynamic adaptability allows the system to optimize for either driving speed (series connection) or control precision (parallel connection) based on the operational needs.
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 configuration allows for synchronized driving of multiple coils at faster speeds, stabilizes vibration frequency and performance, enhances control precision, and reduces vibration time errors, while also optimizing space utilization and allowing for distributed vibration sources.
Implementation Method 1
According to the principles of the electromagnetic induction vibration module, electricity flows through a coil to induce the magnetic field of a magnet. Consequently, the vibration effect can be produced.
Data Source
AI summary
A touch module includes a base plate, a first magnet, a second magnet, a touch pad, a first magnetic board and a second magnetic board. The first magnet and the second magnet are installed on the base plate and separated from each other. The touch pad is located over the base plate to cover the first magnet and the second magnet. The first magnetic board and the second magnetic board are separated from each other, located under the touch pad and coupled with the touch pad. The first magnetic board is aligned with the first magnet. The second magnetic board is aligned with the second magnet. The driving circuit is electrically coupled with the first magnetic board and the second magnetic board. The first magnetic board induces a magnetic field of the first magnet. The second magnetic board induces a magnetic field of the second magnet.