HR Sensor Shielding in Mobile Device Housing
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Solution Overview
Problem
Existing electronic devices face design limitations and increased manufacturing costs due to the need for separate mounting of sensor devices, which can lead to increased device thickness and compromised aesthetics.
Innovation Solution
Incorporating a Heart Rate (HR) sensor and a flash LED within a mobile electronic device's housing, with a shielding unit to prevent interference and an integral window to cover both components, allowing for compact design and reduced mounting space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the sensor device is mounted in a separate location from other electronic components, then the sensor can function properly without interference, but the device thickness increases and the appearance is defaced
Solution Approach 1:
The patent combines the sensor device and electronic components into a shared housing structure, eliminating the need for separate mounting locations. The sensor device is integrated within the same housing as other electronic components, allowing for compact arrangement and maintaining device aesthetics while ensuring proper sensor function through strategic placement and shielding.
2Reliability
If the sensor device is mounted in a separate location, then interference from other components is reduced, but the manufacturing cost increases due to additional processes and parts
Solution Approach 1:
The patent merges the sensor device mounting into the existing housing structure, eliminating the need for separate mounting processes and additional parts. The housing is designed to accommodate both the sensor device and electronic components in an integrated manner, simplifying the manufacturing process and reducing costs while maintaining sensor performance.
3Area of stationary object
If the sensor device and electronic components share the same housing, then the mounting space is reduced and design is improved, but interference between components may occur
Solution Approach 1:
The patent applies local quality by providing shielding specifically in the areas where the sensor device and electronic components are in close proximity. The shielding unit is strategically positioned to protect the sensor device from interference from specific electronic components such as the flash LED, while allowing other components to be closely arranged around the sensor device, thus reducing mounting space without compromising sensor performance.
4Device complexity
If the sensor device is integrated with electronic components in the same housing, then the device complexity is reduced, but shielding measures are required to prevent interference
Solution Approach 1:
The patent combines the shielding function into the existing housing structure, integrating the shielding unit with the housing rather than adding it as a separate component. This approach reduces device complexity by merging multiple functions (housing, mounting, and shielding) into a unified structure, while still providing effective protection against component interference.
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 solution enables improved device performance by preventing interference between the HR sensor and other components, reducing manufacturing costs, and enhancing the device's design aesthetics while maintaining effective biometric data acquisition.
Implementation Method 1
a shielding unit configured to provide shielding between an area of the HR sensor and an area of the flash LED
Implementation Method 2
a flash LED placed adjacent to the HR sensor
Data Source
Figure 1
Figure 2a
Figure 2b
AI summary
A mobile electronic device is provided. The mobile electronic device includes at least one processor, a display module electrically connected with the at least one processor, a communication module electrically connected with the at least one processor, a portable electronic device housing configured to house at least a part of the display module, the at least one processor, and the communication module, and a Heart Rate (HR) sensor (e.g., a Heart Rate Monitor (HRM) sensor) which is placed on one surface of the housing and has at least its part exposed to an outside, and which is electrically connected with the at least one processor.