Cooling Fan Kit Locking Mechanism for Control Module
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The removal of internal cooling fans from control module assemblies is often time-consuming and labor-intensive, hindering maintenance procedures.
Innovation Solution
A locking internal cooling fan system with a frame, locking mechanism, and fan configuration that allows for quick installation and removal without additional tools, utilizing a printed circuit board to supply power to the fan and a locking mechanism that secures the fan to the control module assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the cooling fan is made removable to enable maintenance procedures, then maintenance accessibility is improved, but installation and removal become time-consuming and labor-intensive
Solution Approach 1:
The locking mechanism incorporates a spring-loaded arm that dynamically transitions between locked and unlocked positions. The spring provides automatic engagement when the fan is installed and enables easy release when activated, transforming a static fastening system into a dynamic one that adapts to installation and removal operations.
Solution Approach 2:
The locking mechanism is segmented into distinct functional components: a locking arm with engagement feature, a spring element for providing force, and a activation mechanism. This segmentation allows each component to perform its specific function efficiently while enabling the overall system to be operated with simple user input.
2Reliability
If a locking mechanism is added to secure the cooling fan, then fastening reliability is improved, but device complexity increases
Solution Approach 1:
The spring-loaded locking mechanism is self-actuating during installation. When the cooling fan is inserted, the spring automatically pushes the locking arm into the engaged position with the housing, securing the fan without requiring additional fasteners or manual intervention. The system serves itself by converting the insertion motion into automatic locking.
Solution Approach 2:
The locking arm acts as an intermediary element between the cooling fan and the housing. It provides the connection function while isolating the complexity of the spring mechanism from both the fan and the housing structures, allowing simple interfaces on either end while maintaining reliable fastening through the intermediate locking component.
3Ease of operation
If the locking mechanism is made tool-free for quick release, then ease of operation is improved, but locking strength may be reduced
Solution Approach 1:
The spring is pre-loaded during manufacturing to store elastic potential energy. This preliminary action ensures that when the locking arm engages with the housing, it does so with sufficient force to create a strong, secure connection. The pre-stored energy in the spring compensates for the lack of additional mechanical fastening elements.
Solution Approach 2:
The locking mechanism uses dynamic spring force rather than static mechanical fastening. The spring continuously applies force to maintain the locked position, adapting to minor variations in assembly tolerances and wear over time, while still providing strong holding force that equals or exceeds traditional screw-based systems.
Data Source
AI summary
A cooling system for an automatic control component includes a frame. The frame includes a front side, a back side, a first side wall, and a second side wall. The cooling system also includes a stay coupled to the frame. Additionally, the cooling system includes a locking mechanism coupled to the front side of the frame. The locking mechanism is configured to move between a locked position and an unlocked position to secure the frame to a control module assembly. Moreover, the cooling system includes a fan positioned within the frame. The fan is configured to cool internal electronics of the control module assembly and the fan receives operative energy from the control module assembly. The cooling system also includes a printed circuit board secured within the stay and configured to receive power from the control module assembly and supply power to the fan.