Electronic Keyboard Ventilation Design
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Solution Overview
Problem
Conventional electronic keyboard instruments face size increase and thermal deterioration due to heat generated by the electronic circuit, which affects the longevity and performance of heat-sensitive components.
Innovation Solution
The design incorporates a frame body with a keyboard attachment section and a rear frame section, featuring ventilation holes that allow air to flow through, efficiently carrying heat away from the electronic circuit, thus preventing overheating and reducing the overall size of the instrument.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the electronic circuit is provided in the interior of the rear frame section to reduce overall size, then the size of the keyboard attachment frame section is reduced, but heat accumulates in the rear frame section causing thermal deterioration of components
Solution Approach 1:
The harmful heat generated by the electronic circuit is extracted from the rear frame section through ventilation holes. The lower ventilation hole allows hot air to escape from the bottom of the rear frame section, removing the thermal burden from the compact interior space and preventing component deterioration.
Solution Approach 2:
A pneumatic ventilation system is implemented using convection currents. The ventilation holes create air flow paths where cooler air enters the rear frame section from the lower portion and hotter air exits through the upper portion, utilizing natural convection to continuously remove heat without requiring active cooling mechanisms.
2Device complexity
If the power unit and transformer are provided on the bottom plate in the rear frame section, then the electronic circuit can be compactly arranged, but heat ascends and heats the panel and drive circuit board above
Solution Approach 1:
The ventilation holes act as intermediary channels between the heat source (power unit and transformer on the bottom plate) and the external environment. These holes provide a dedicated thermal escape route that intercepts ascending heat before it can reach the vulnerable drive circuit board mounted on the panel above.
Solution Approach 2:
Heat is extracted from the interior of the rear frame section through strategically positioned ventilation holes. The lower ventilation hole at the bottom portion and upper ventilation hole at the top portion create an extraction pathway that removes hot air from between the power unit and the drive circuit board, protecting sensitive components.
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 effectively reduces the size of the electronic keyboard instrument by minimizing heat stagnation, ensuring the electronic circuit operates properly and prolongs the life of heat-sensitive components.
Implementation Method 1
air enters through one ventilation hole and exits through the other ventilation hole, whereby air can flow through the frame body... air enters the rear frame section through the lower ventilation hole and exits to the exterior of the rear frame section through the upper ventilation hole... air flow efficiently carries heat generated from the electronic circuit to the exterior of the rear frame section
Data Source
AI summary
An electronic keyboard instrument includes a keyboard attachment frame section having a keyboard section; a rear frame section joined to a rear portion of the lower surface of the keyboard attachment frame section and having pedals provided at its bottom portion; and an electronic circuit that generates heat when activated and includes a power transformer and an amplifier. The electronic circuit is vertically provided on the inner surface of a rear body section of the rear frame section. Hole portions and ventilation holes are provided at a bottom portion of the rear body section. Ventilation holes are provided at the keyboard attachment frame section.