Detachable Fan Case Locking for Garment Fan Cleaning
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Solution Overview
Problem
Existing fan-equipped garments face challenges in easily detaching the rear guard for internal cleaning, as the engagement and disengagement mechanism is complex and inefficient.
Innovation Solution
The fan design incorporates a tongue-shaped part on the first case part and an engaged part on the second case part, with flexible engagement and locking mechanisms that allow easy detachment and attachment by elastic deformation, restricting movement along the circumferential and axial directions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the rear guard is made detachable for cleaning, then ease of maintenance is improved, but device complexity increases due to engagement and disengagement mechanisms
Solution Approach 1:
The case body is divided into a first case part and a second case part that can be detachably attached. The engagement means includes a tongue-shaped part with engaging parts that can be engaged with and disengaged from the second case part, allowing the second case part to be separated for cleaning purposes.
Solution Approach 2:
The engagement means employs a flexible tongue-shaped part that can elastically deform during engagement and disengagement operations. This flexibility simplifies the interaction between parts, allowing easy attachment and detachment without complex mechanical mechanisms.
2Ease of operation
If the engagement mechanism is made simple for easy detachment, then ease of operation is improved, but reliability decreases due to potential unintentional disengagement
Solution Approach 1:
The tongue-shaped part is made flexible and can elastically deform during engagement and disengagement. This flexibility allows simple operation for detachment while the elastic recovery ensures reliable engagement when attached, preventing unintentional disengagement.
Solution Approach 2:
The engagement mechanism transitions from a static rigid connection to a dynamic flexible connection. The tongue-shaped part can deform elastically during operation, allowing easy detachment when force is applied while maintaining stable engagement during normal use through elastic recovery.
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
This design facilitates easy detachment of the rear case part from the front case part for internal cleaning, enhancing maintenance efficiency while preventing unintentional disengagement during use.
Implementation Method 1
the tongue-shaped part is flexible, extends along the circumferential direction of the flange, and has one end that is a fixed end with respect to the flange and another end that is a free end
Data Source
AI summary
A fan includes a case body. The case body includes a motor case to which a motor for rotating an impeller is attached, a first case part, and a second case part that is detachably attached to the first case part. The first case part includes a cylindrical part, a flange, and an engaging tip that restricts a relative movement between the first case part and the second case part along a circumferential direction of the flange. The second case part includes an engaged part that restricts the relative movement between the first case part and the second case part. The engaging tip includes a tongue-shaped part and an engaging part that includes a protruding portion and a recessed portion. The engaged part is engaged with the engaging part and includes a recessed portion and a protruding portion.