Cooling Fan Fastening Assembly for Wire-Free Electrical Connection
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Solution Overview
Problem
The presence of multiple test wires in multi-fan cooling devices causes wire entanglement, affecting neatness and airflow, which in turn reduces heat dissipation efficiency.
Innovation Solution
A fastening device with snap-fit joints and contact pins is used to connect cooling fans, eliminating the need for individual wires and allowing series connection, thereby improving airflow and reducing wire complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple independent test wires are used for each cooling fan, then each fan can be tested and maintained independently, but wire entanglement and interlacement occur, affecting device neatness and airflow
Solution Approach 1:
The patent combines multiple independent test wires into a single shared test wire that serves all cooling fans. The test wire is routed through the air flow passage to connect with multiple fans, eliminating wire entanglement while maintaining independent testing capability through separate test terminals for each fan.
Solution Approach 2:
The test wire is routed through the air flow passage (a spatial dimension) rather than along the outer surface, allowing the wire to pass through the interior space and connect to multiple fans without creating external entanglement or obstructing the device exterior.
2Ease of operation
If multiple test wires are used for each cooling fan, then individual fan testing is enabled, but air flow obstruction occurs, reducing heat dissipation efficiency
Solution Approach 1:
The test wire is positioned within the air flow passage, utilizing the internal space rather than occupying external airflow paths. This routing strategy eliminates air flow obstruction while maintaining testing functionality.
3Ease of operation
If multiple test wires are arranged in the device, then comprehensive fan monitoring is achieved, but the device interior neatness is compromised
Solution Approach 1:
Multiple test wires are merged into a single test wire structure that routes through the air flow passage, eliminating the clutter of multiple separate wires and improving device interior neatness while maintaining monitoring capability for all fans.
Data Source
AI summary
A heat dissipation device includes a plurality of cooling fans and at least one fastening device that includes a main body, a fastening kit having two arms each includes two first connecting parts, a second connecting part, and a pressing structure, a first end of the two first connecting parts connect to opposite ends of the second connecting part and a second end of the two first connecting parts connect to an outer surface of the main body, the pressing structure disposes on the second connecting part and protrudes out of the outer surface of the main body, and each arm includes two snap-fit joints, and a contact plate disposed on an inner surface of the main body, the contact plate includes plurality of contact pins that are disposed on opposite ends of the contact plate, wherein, the snap-fit joints are configured to snap fit to the cooling fans so that the contact pins are electrically connected to the cooling fans.