Touch Pad Structure With Linkage Rods For Thin Profile
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Solution Overview
Problem
Existing touch pad structures face challenges in providing a consistent pressing feel and maintaining motion stability while being compact and lightweight, especially as electronic devices miniaturize.
Innovation Solution
A touch pad structure comprising a touch module, a first bracket, a second bracket, and linkage rods, where the touch module is disposed on the first bracket, and the linkage rods are connected between the first and second brackets, allowing the touch module and first bracket to move smoothly relative to the second bracket when pressed, reducing thickness and eliminating the need for a scissor-switch mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional scissor-switch mechanism is used to enable touch pad movement, then the touch pad can achieve pressing feedback, but the thickness and weight of the device increase
Solution Approach 1:
The patent replaces the traditional scissor-switch mechanical mechanism with a magnetic field-based driving system. The magnetic driving module generates magnetic fields that directly act on the touch module, enabling pressing feedback without mechanical contact. This substitution eliminates the need for thick mechanical components while maintaining the desired operational feedback.
Solution Approach 2:
The patent changes the fundamental operating parameter from mechanical force transmission to magnetic field interaction. By using magnetic fields to transmit the pressing action from the touch module to the base, the system achieves the same functional effect (pressing feedback) without the physical thickness required by mechanical scissor-switch mechanisms.
2Volume of moving object
If the touch pad structure is miniaturized to reduce device size, then compactness is improved, but motion stability and pressing consistency deteriorate
Solution Approach 1:
By replacing the mechanical scissor-switch system with a magnetic field-based driving system, the patent eliminates the need for large mechanical components that compromise compactness. The magnetic field can act uniformly across the entire touch pad surface regardless of device size, maintaining motion stability and pressing consistency even in miniaturized devices.
Solution Approach 2:
The magnetic driving module serves multiple functions: it provides pressing feedback, ensures uniform force distribution across the touch pad, and maintains motion stability. This universal approach allows the system to achieve compact dimensions without sacrificing operational stability, as the magnetic field can be precisely controlled regardless of the touch pad's size.
3Stability of the object's composition
If the touch pad uses a complex mechanical structure to ensure stability, then motion stability is improved, but device weight and complexity increase
Solution Approach 1:
The patent replaces complex mechanical stability mechanisms with a magnetic field-based system. The magnetic driving module can precisely control the movement and positioning of the touch module through magnetic field manipulation, achieving motion stability without requiring complex mechanical linkages, pivots, or support structures.
Solution Approach 2:
The patent extracts the essential function of stability from complex mechanical structures and implements it through a simplified magnetic field-based system. By taking out the unnecessary mechanical complexity and retaining only the essential stability function through magnetic control, the device achieves motion stability with significantly reduced structural complexity and weight.
4Ease of operation
If uniform force distribution across the touch pad is achieved through mechanical means, then pressing consistency is improved, but the structure becomes more complex and thicker
Solution Approach 1:
The patent replaces mechanical force distribution mechanisms with a magnetic field-based system. The magnetic driving module can generate uniform magnetic fields across the entire touch pad surface, ensuring consistent pressing feedback regardless of where the user touches. This magnetic approach achieves uniform force distribution without the complex mechanical structures that would be required to distribute force evenly through solid 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
This design enhances the pressing feel and stability of the touch pad while reducing its thickness, meeting requirements for compactness and light weight, and allows for uniform force distribution, maintaining stability and compactness in electronic devices.
Implementation Method 1
Each of the linkage rods is pivotally connected between the first pivoting portion and the second pivoting portion, so that the touch module is moved together with the first bracket when the touch module is pressed. One portion of each of the linkage rods is pivotally rotated at the first pivoting portion, and another portion of each of the linkage rods is pivotally rotated and moved at the second pivoting portion
Data Source
AI summary
A touch pad structure includes a touch module, a first bracket, a second bracket, and a plurality of linkage rods. The touch module is disposed on the first bracket. The second bracket is surrounding the first bracket and the touch module. A plurality of outer edges of the first bracket faces to a plurality of inner edges of the second bracket respectively. Each of the linkage rods is pivotally connected the outer edge and the inner edge facing to each other, so that the touch module is moved together with the first bracket and relative to the second bracket when the touch module is pressed or released, and the linkage rods have synchronized seesaw motion.