Metallic Case Groove for Grip Sensor Sensitivity
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Solution Overview
Problem
Metallic cases in electronic devices have limited transformation degree when pressure is applied, making it difficult for grip sensors to sense micro pressures effectively, resulting in lowered sensitivity.
Innovation Solution
Incorporating a transformation portion, such as a groove or hole, in the case structure near the grip sensor, either made of a plastic material or reducing the case's thickness, to enhance the transfer of external forces to the grip sensor, allowing for improved pressure sensing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a metallic case is used to form the appearance of the electronic device, then the case has high strength and durability, but the case has limited transformation degree when pressure is applied, resulting in lowered grip sensor sensitivity
Solution Approach 1:
The case is divided into two functional regions: a first case portion with high strength for overall structural support, and a second case portion with low strength specifically at the grip sensor region to enable micro-pressure sensing. This segmentation allows the case to simultaneously maintain overall strength while providing localized flexibility for pressure detection.
Solution Approach 2:
The case is designed with non-uniform properties: the first case portion maintains high strength and durability for structural integrity, while the second case portion has reduced strength to allow transformation when pressure is applied to the grip sensor. This local quality differentiation resolves the contradiction between overall case strength and localized sensing sensitivity.
2Measurement precision
If the case thickness is reduced to enhance pressure transfer to the grip sensor, then grip sensor sensitivity is improved, but the case strength and structural integrity are compromised
Solution Approach 1:
The case thickness is segmented into different regions: the first case portion maintains sufficient thickness for structural strength, while the second case portion has reduced thickness to enhance pressure transfer to the grip sensor. This segmentation enables the case to simultaneously provide structural integrity and improved pressure sensing capability.
Solution Approach 2:
The case is designed with spatially varying thickness: thicker regions provide structural support and strength, while thinner regions near the grip sensor enhance pressure transfer efficiency. This local quality variation resolves the contradiction between overall case strength and localized pressure sensing sensitivity.
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 sensitivity of the grip sensor by effectively transferring external forces, enabling more precise pressure detection and control of functions in electronic devices.
Implementation Method 1
the case includes a transformation portion formed in a thickness direction of the case, at a region near the grip sensor... effectively transferring external forces to the grip sensor
Data Source
AI summary
An electronic device includes a body including a case formed of a metallic material and forming side surfaces; a display unit coupled to the case, and forming a front surface of the body; a grip sensor attached to one region of the case, and configured to sense a pressure applied to the side surfaces; and a controller configured to execute a specific function by the grip sensor, wherein the case forms a mounting space for accommodating the grip sensor therein, and wherein the case includes a transformation portion formed in a thickness direction of the case, at a region near the grip sensor.