Fan-Mounted LED Module Radial Orientation for Board Card Readability
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Solution Overview
Problem
Conventional board cards with electrical fans have LED modules that display messages in a direction parallel to the circuit board, making it difficult for users to read the messages when the board card is inserted into a slot.
Innovation Solution
The electrical fan is designed with a revolving spindle and blades, where the LED module's light-emitting direction is radial to the spindle, allowing users to read messages easily by positioning the LEDs at the edges of the blades or on a second substrate connected to the spindle, with a control circuit controlling the LEDs to display messages progressively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the LED module is disposed on the electrical fan parallel to the rotation plane of the blades, then the brand mark can be displayed, but the user is unable to read the message when the board card is inserted in a slot of the circuit board
Solution Approach 1:
The LED module is rotated 90 degrees relative to the blade rotation plane, changing the light emission direction from parallel to perpendicular to the rotation plane. This dimensional change allows the light to emit toward the circuit board slot direction, enabling users to read messages when the board card is inserted.
2Device complexity
If the LED module emits light in a direction parallel to the circuit board, then the structure is simple, but the message cannot be read by the user when the board card is inserted
Solution Approach 1:
Instead of emitting light parallel to the circuit board as in conventional designs, the LED module inverts the light emission direction to be perpendicular to the circuit board, facing toward the slot direction. This inversion enables message visibility while maintaining structural simplicity.
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
Enables users to conveniently read messages displayed by the LEDs during the rotation of the blades, improving user experience by ensuring message visibility when the board card is inserted into a slot.
Implementation Method 1
an LED module (340) is disposed on a surface of the electrical fan 300 parallel to the rotation plane of the blades 320. The LED module 340 is used to display a brand mark so that a user has an impression of the brand mark, or used to display other messages.
Data Source
AI summary
A board card having a control circuit includes a first substrate and an electrical fan. The first substrate has a heat source and the electrical fan is disposed on the first substrate. The electrical fan includes a revolving spindle, a plurality of blades and a LED module. The revolving spindle is disposed on the first substrate and rotates about an axis. The blades are joined with the revolving spindle. The LED module is electrically connected to the control circuit, wherein when the revolving spindle drives the blades rotate, the light-emitting direction of the LED module is along a radial direction of the revolving spindle.