Touchpad Module Lateral Vibration Motor Alignment
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Solution Overview
Problem
Existing touchpad vibration devices are difficult to assemble and costly, limiting their ability to provide effective haptic feedback with sufficient vibration output.
Innovation Solution
A touchpad module design featuring an outer frame, internal support, springs connecting the frame and support, a substrate with a vibration motor mounted on it, where the vibration motor's direction coincides with the springs' urging direction, allowing for increased vibration output while simplifying assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If an existing vibration device is used to provide haptic feedback, then the operator can obtain a click feeling, but the device is difficult to assemble and costly
Solution Approach 1:
The device is divided into functionally independent modules: the vibration motor unit (with motor, weight, and housing) is separate from the keyboard assembly. This segmentation allows each module to be manufactured and tested independently, then assembled together, simplifying the overall manufacturing process and reducing costs while maintaining haptic feedback quality
Solution Approach 2:
The vibration motor serves multiple functions: it provides haptic feedback for key press confirmation, generates vibration for tactile sensation, and works with the weight to create the click feeling. This multi-functionality reduces the need for separate components, simplifying assembly and reducing cost
2Power
If vibration output is increased to improve haptic feedback, then the click feeling becomes more pronounced, but the device complexity and assembly difficulty increase
Solution Approach 1:
The weight is positioned to coincide with the vibration motor's rotation center, merging the mass distribution optimization with the vibration generation function. This integration allows high vibration output without requiring additional balancing components or complex mounting structures, thereby reducing assembly complexity
Solution Approach 2:
The problem of achieving high vibration output is solved by adding the dimensional aspect of weight distribution around the rotation center. By optimizing the weight's position in the radial dimension rather than just increasing motor power, high vibration output is achieved without proportionally increasing device complexity
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 design enhances vibration output and ease of assembly, providing effective haptic feedback with reduced costs and improved manufacturing efficiency.
Implementation Method 1
a vibration motor (5) mounted on the substrate (2), wherein a vibration direction of the vibration motor (5) and an urging direction of the spring portions (32A to 32D) coincide in the lateral direction
Implementation Method 2
spring portions (32A to 32D) that connect the outer frame portion (31) and the support portion (33) to each other
Data Source
AI summary
A touchpad module includes an outer frame, a support disposed inside the outer frame, a spring that connects the outer frame and the support to each other, a substrate fixed to and supported by the support, and a vibration motor mounted on the substrate, in which a vibration direction of the vibration motor and an urging direction of the spring coincide in a lateral direction.