Series Fan Connector Assembly for Tight-Space Installation
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Solution Overview
Problem
The existing method of connecting multiple fans in series is cumbersome due to the need for mechanical and electrical connections, which is difficult in confined spaces.
Innovation Solution
A fan assembly design that integrates mechanical and series circuit connections through a connector with engaging portions and terminals, allowing simultaneous assembly and electrical connection of fans.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple fans are connected in series using separate mechanical fixation and cable plugging, then reliable mechanical and electrical connections are achieved, but the assembly complexity and difficulty increase significantly in confined spaces
Solution Approach 1:
The patent combines the mechanical connection component (fixation structure) and the electrical connection component (terminal and cable) into a single integrated connector assembly. This allows both mechanical fixation and electrical connection to be accomplished simultaneously through one assembly operation, rather than requiring separate steps for mechanical mounting and cable plugging, thereby reducing assembly complexity while maintaining connection reliability
Solution Approach 2:
The connector assembly serves multiple functions simultaneously: it provides mechanical fixation to secure the fan to the support, establishes electrical connections through integrated terminals, and guides cable routing. This multi-functional design eliminates the need for separate mechanical fasteners and electrical connectors, simplifying the overall assembly process
2Productivity
If fans are arranged side by side to form a fan wall, then sufficient air volume and cooling capacity are achieved, but the space between fans becomes limited making cable plugging difficult
Solution Approach 1:
The cable is nested within or alongside the mechanical connection structure of the connector assembly. The cable routing channel or guide is integrated into the connector body, allowing the cable to be routed through the same space occupied by the mechanical fixation components. This nested arrangement eliminates the need for additional cable management space between closely spaced fans
3Reliability
If separate mechanical fixation and cable plugging procedures are used, then distinct mechanical and electrical connections are established, but the assembly time and procedure complexity increase
Solution Approach 1:
The electrical terminals and cable routing structures are pre-integrated into the mechanical connector assembly during manufacturing. When installation occurs, the entire connector assembly (including both mechanical fixation elements and electrical connection elements) is installed in a single operation, eliminating the need for subsequent separate cable plugging steps and significantly reducing assembly time
Data Source
AI summary
A fan assembly includes two fan apparatuses and at least one connector. Each of the two fan apparatuses includes a frame, a fan blade and at least one first terminal. The frame has at least one first engagement recess. The fan blade is rotatably disposed on the frame. The at least one first terminal is located in the at least one first engagement recess. The at least one connector includes a first assembly block and two second terminals. The first assembly block includes two first engaging portions connected to each other. The two second terminals are respectively mounted on the two first engaging portions. The two first engaging portions of the first assembly block are respectively engaged with the at least two first engagement recesses of the two frames, and the two second terminals are respectively plugged and electrically connected to the at least two first terminals.