Upward-Facing Speaker Bracket and Keyboard Sound Transmission
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Solution Overview
Problem
Conventional electronic apparatuses with speakers at the bottom of the chassis suffer from muffled sound due to sound reflection off surfaces, and increasing sound transmission holes is costly and time-consuming with CNC processing.
Innovation Solution
The apparatus features speakers directed upward with a diaphragm below the keyboard, and sound transmission holes in the keyboard that transmit sound upward, eliminating the need for multiple sound transmission holes in the chassis, thus reducing costs and improving sound clarity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If sound transmission holes are formed in the chassis using CNC processing, then sound can be transmitted to the user, but processing time and costs increase
Solution Approach 1:
The patent divides the sound transmission function between two components: the keyboard (with sound transmission holes) and the chassis (with fewer or no sound transmission holes). This segmentation allows the keyboard to handle the primary sound transmission task, reducing the need for multiple holes in the chassis and thereby decreasing CNC processing time and costs while maintaining sound transmission quality.
Solution Approach 2:
The keyboard acts as an intermediary component that facilitates sound transmission from the speaker to the user. By incorporating sound transmission holes in the keyboard, the system achieves effective sound transmission without requiring multiple holes in the chassis, thus reducing manufacturing complexity and processing time.
2Manufacturing precision
If multiple sound transmission holes are formed in the chassis, then sound clarity improves, but manufacturing cost increases
Solution Approach 1:
The patent segments the sound transmission function across multiple components (keyboard and chassis), with the keyboard bearing the primary responsibility for sound transmission. This approach reduces the number of sound transmission holes needed in the chassis, lowering manufacturing costs while maintaining sound clarity through the keyboard's sound transmission holes.
Solution Approach 2:
The patent utilizes the keyboard, which is already present in the electronic apparatus, as a cost-effective solution for sound transmission. By repurposing the keyboard structure to include sound transmission holes, the system avoids the need for expensive modifications to the chassis, achieving sound clarity at lower manufacturing cost.
3Device complexity
If speakers are placed at the bottom of the chassis, then the chassis structure is simplified, but sound clarity deteriorates due to reflection
Solution Approach 1:
The keyboard serves as an intermediary medium that transmits sound from the bottom-placed speakers to the user. By incorporating sound transmission holes in the keyboard, the system maintains the simplified bottom speaker placement while achieving clear sound transmission, as the keyboard's holes allow sound to pass through directly to the user without significant reflection.
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 configuration ensures clear sound output to the user while minimizing processing time and costs associated with CNC machining, as the sound transmission holes are integrated into the keyboard rather than the chassis.
Implementation Method 1
a sound transmission hole in the keyboard that transmits sound from the speaker upward
Data Source
AI summary
An electronic apparatus includes: a chassis with a top surface; a keyboard disposed on the top surface; and a pair of speakers in the chassis. The speaker is directed to emit sound upward, and at least includes a diaphragm below the keyboard to emit sound. The keyboard has a sound transmission hole that transmits sound from the speaker upward. The speakers are each fixed to the keyboard via a bracket. The bracket has a pin that supports the speaker; and a screw hole that is fixed to the lower surface of the keyboard at a position different from the pin.