Fingerprint Sensor Mounting in Keyboard Housing
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Solution Overview
Problem
Conventional fingerprint recognition module mounting structures in electronic devices, such as notebook computers, result in complex exterior designs and increased assembly operations due to the placement of the module between the touchpad and keyboard, compromising aesthetic quality and usability.
Innovation Solution
A sensor mounting device where the fingerprint recognition module is inserted into a seating recess from the outside, secured with a coupler and fastener, and electrically connected to the main PCB, allowing for a simplified exterior design and reduced assembly complexity by integrating the module within the keyboard area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the fingerprint recognition module is disposed to left and right spaces of a touch pad, then the module can be securely mounted, but the exterior design becomes complex and aesthetic quality deteriorates
Solution Approach 1:
The patent merges the fingerprint recognition module with the keyboard area by positioning it within the keyboard housing and using keyboard structure components (seating recess, couplers, fasteners) for mounting. This integration eliminates the need for separate mounting structures in touch pad spaces, simplifying the overall device design while maintaining secure mounting through the keyboard housing's structural support.
2Reliability
If the fingerprint recognition module is fastened using a plurality of screws extending from the interior to the exterior of a housing, then secure mounting is achieved, but the number of assembly operations increases
Solution Approach 1:
The patent extracts the mounting function from traditional screw-fastening methods and relocates it to the keyboard housing structure. The seating recess, couplers, and fasteners are integrated into the keyboard housing, allowing the fingerprint module to be mounted using the keyboard assembly's existing structural elements rather than requiring separate exterior mounting operations.
Solution Approach 2:
The keyboard housing structure provides self-service for mounting the fingerprint module through its integrated seating recess and fastening mechanisms. The keyboard housing itself serves as the mounting structure, eliminating the need for separate mounting components and reducing assembly steps.
3Ease of manufacture
If the sensor module is inserted into a seating recess from the outside, then assembly process is simplified, but secure positioning must be maintained
Solution Approach 1:
The seating recess is pre-formed in the keyboard housing with predetermined positioning features (coupler holes, fastener locations) that guide the fingerprint module into correct position during assembly. This preliminary preparation of the mounting structure enables simple external insertion while ensuring accurate and secure positioning without requiring complex alignment procedures.
Data Source
AI summary
According to various example embodiments, an electronic device is disclosed. The electronic device includes a housing having a first surface facing a first direction and a second surface facing a second, opposing direction. A first area of the first surface includes a plurality of selectable input keys. A second area of the first surface excludes the plurality of keys. A sensor module, such as a fingerprint sensor, is installed to the first area.