Bracket Accommodating Slot for Biometric Module Component Protection
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Solution Overview
Problem
Current brackets used to fix biological characteristic recognition modules in electronic devices often damage the integrated electronic components due to direct contact, and there is a need to prevent damage and ensure secure mounting while avoiding liquid ingress and electrostatic discharge.
Innovation Solution
The electronic device design includes a chassis, a back plate with a through hole, a bracket with an accommodating slot, and a gasket, where the biological characteristic recognition module is positioned between the bracket and chassis, with electronic components housed in the slot to prevent collision and the gasket preventing liquid and electrostatic discharge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a full-face pressed bracket is used to fix the biological characteristic recognition module, then the module is securely mounted to the chassis, but the electronic components in the central area of the module are damaged by direct contact with the bracket
Solution Approach 1:
The bracket is divided into two functional areas: a pressed face for mounting the module and an accommodating slot that creates a protected cavity for electronic components. This segmentation allows the bracket to simultaneously provide secure mounting while preventing damage to sensitive components by separating the contact zones.
Solution Approach 2:
The accommodating slot acts as an intermediary structure between the bracket's pressed face and the electronic components. It provides a protective buffer zone that prevents direct contact between the pressing force and the components, thereby mediating the mechanical stress and preventing damage.
2Length of moving object
If the biological characteristic recognition module is made smaller to match thinner electronic devices, then the device thickness is reduced, but the electronic components become more vulnerable to damage from bracket contact
Solution Approach 1:
The electronic components are nested within the accommodating slot of the bracket, creating a protective enclosure. This nested structure allows the components to be housed safely within the bracket's cavity, protecting them from external forces while maintaining a compact overall size suitable for thin devices.
Solution Approach 2:
The solution moves the protection mechanism from a two-dimensional surface contact to a three-dimensional volumetric enclosure. By creating a recessed cavity in the bracket, the design provides depth-based protection that shields components from pressing forces while maintaining external compactness.
3Object-affected harmful factors
If the bracket is designed with an accommodating slot to protect electronic components, then component damage is prevented, but the bracket structure becomes more complex
Solution Approach 1:
The mounting function and protection function are merged into a single bracket structure. The accommodating slot is integrated directly into the bracket body, combining the support and protective roles in one component rather than requiring separate mounting and protective elements.
Solution Approach 2:
The bracket is designed with multi-functionality: it simultaneously serves as a mounting structure (through the pressed face) and a protective enclosure (through the accommodating slot). This universal design allows one component to fulfill multiple functions, reducing the need for additional protective elements.
Data Source
AI summary
An electronic device includes a chassis, a back plate, a bracket, and a biological characteristic recognition module. The back plate is fixed to a chassis and has a first through hole. The bracket is fixed to a side of the back plate away from the chassis. The bracket has an accommodating slot recessed away from the chassis. The biological characteristic recognition module is located in the first through hole. The biological characteristic recognition module is abutted between the bracket and the chassis. The biological characteristic recognition module has at least one electronic component. The electronic component is accommodated in the accommodating slot.