Sliding Fan Unit Attachment for Vibration-Stable Maintenance Access
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Solution Overview
Problem
Existing attachment structures for fan units in electrical equipment lack efficiency in maintenance and stability of electrical connections, particularly when accessing the fan from a single direction and experiencing vibrations that can disconnect wiring.
Innovation Solution
A detachable attachment structure featuring a guide mechanism for sliding the fan unit into place and a retaining mechanism to secure it, allowing easy attachment and detachment without fasteners, while mitigating stress on connectors to prevent disconnection during vibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fastener such as a bolt is used to attach the fan unit to the main body, then the attachment is secure and stable, but the maintenance operation becomes complex and time-consuming
Solution Approach 1:
The attachment structure is divided into separate functional components: a guide mechanism for insertion and a retaining mechanism for securing. This segmentation allows the attachment process to be simplified into distinct steps while maintaining reliability, enabling easy maintenance without requiring complex fastening operations
Solution Approach 2:
The attachment structure transitions from a static fastened state to a dynamic detachable state. The guide mechanism enables smooth insertion motion, while the retaining mechanism provides secure holding when attached and easy release when detached, allowing rapid maintenance access without compromising attachment stability during operation
2Device complexity
If the fan unit is accessed from only one direction, then the equipment structure is compact, but the maintenance operation becomes difficult
Solution Approach 1:
Instead of requiring access to multiple sides of the fan unit for maintenance, the attachment structure is designed to be detached from a single direction. The guide mechanism and retaining mechanism work together to enable complete removal of the fan unit through one-sided access, inverting the traditional multi-directional access requirement and simplifying maintenance operations
3Productivity
If vibration occurs during operation, then the electrical equipment performs its cooling function, but stress on the connector can cause wiring disconnection
Solution Approach 1:
The connector is designed with stress mitigation features that cushion against vibration-induced forces before they can cause wiring disconnection. This prior cushioning protects the electrical connection during the fan unit's operation and vibration, maintaining reliability while the cooling function performs its productivity role
Data Source
AI summary
A attachment structure enabling more efficient work in performing maintenance of a fan of a fan unit and a more stable electrical connection between a main body of an electrical equipment and a fan unit. A attachment structure configured to detachably attach a fan unit including a fan and a casing housing the fan to/from a main body of an electrical equipment includes a guide mechanism configured to guide a slide motion of sliding the casing in one direction relative to the main body to dispose the casing at a mounting position, and a retaining mechanism configured to restrict movement of the casing relative to the main body in a direction opposite the one direction when the casing is disposed at the mounting position by the slide motion.