Laptop Chassis Boss-and-Bracket Layout for Keyboard Edge Constraints
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Solution Overview
Problem
Narrowing the space between the end of the keyboard and the edge of the main body chassis in laptop PCs makes it difficult to place a boss for supporting the electronic board, compromising the stability and fixation of the electronic components.
Innovation Solution
The electronic apparatus employs a chassis design with bosses protruding from the inner face of the cover member into holes or cutouts in the keyboard, and brackets fastened to these bosses with screws, along with studs on the bracket faces to secure the electronic board, allowing for stable fixation regardless of the chassis and keyboard layout.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the space between the end of the keyboard and the edge of the main body chassis is narrowed to achieve compact laptop design, then the device size is reduced, but it becomes difficult to place a boss for supporting the electronic board
Solution Approach 1:
The patent transitions from a two-dimensional planar support structure to a three-dimensional hierarchical structure by having bosses protrude from the chassis inner face into the keyboard thickness dimension. This vertical dimensionality change allows boss placement in the limited space between chassis and keyboard, resolving the contradiction between compact size and manufacturability.
Solution Approach 2:
The boss structure is nested within the limited space by protruding from the chassis inner face into the keyboard thickness. The bracket is then nested onto the boss, creating a compact hierarchical arrangement that fits within the constrained space while maintaining all necessary support functions.
2Volume of moving object
If the space between the end of the keyboard and the edge of the main body chassis is narrowed, then the device becomes more compact, but the stability and fixation of the electronic board is compromised
Solution Approach 1:
The support function is segmented into multiple independent elements: multiple bosses distributed across the chassis inner face, each supporting a bracket, which in turn supports the electronic board. This segmentation provides multiple fixation points that maintain reliability even in compact configurations.
Solution Approach 2:
The boss structures are strategically positioned at specific locations where support is needed, with each boss protruding to the appropriate height to accommodate the bracket thickness. This localized adaptation ensures optimal fixation at each support point while maintaining overall compactness.
3Reliability
If bosses are placed to support the electronic board in the limited space, then the electronic board can be fixed, but the layout flexibility of the chassis and keyboard is reduced
Solution Approach 1:
The boss structure serves multiple functions: it provides support for the bracket, acts as a mounting point for the electronic board, and maintains structural integrity in compact designs. This multi-functionality reduces the need for additional specialized components, thereby preserving layout flexibility.
Solution Approach 2:
The boss protrusion height can be adjusted based on the specific design requirements, allowing the support structure to adapt to different keyboard and chassis configurations. This dynamic adjustability maintains layout flexibility while ensuring reliable electronic board support.
Data Source
AI summary
An electronic apparatus includes a chassis, a keyboard fastened to an upper cover of the chassis by first screws; at opposite ends of the keyboard in a left-right direction of the chassis, a first bracket fastened to a first side wall of the chassis and a second bracket fastened to a second side wall of the chassis; and an electronic board that is supported by the first bracket and the second bracket. The chassis includes: the upper cover; the first side wall and the second side wall that protrude in a thickness direction of the chassis; for each of the first side wall and the second side wall, two bosses that protrude: in the thickness direction of the chassis, from the inner face of the upper cover, and also in the left-right direction of chassis, from the inner face of the corresponding side wall.