Blower
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Solution Overview
Problem
Existing blowers face challenges in optimally designing airflow paths and surfaces to minimize resistance and direct airflow effectively, and they are difficult to manufacture and maintain due to complex configurations and accumulation of foreign matter like dust.
Innovation Solution
A blower design featuring a fan with a lower body and upper bodies forming flow paths with slits for air discharge, where the upper bodies are designed with convex panels and connecting members to guide air efficiently and minimize resistance, allowing for easy assembly and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the outer wall and inner wall are designed as integrated complex structures to form the mouse and coanda surface, then the airflow path can be optimized for minimal resistance, but the manufacturing complexity and difficulty of assembly increase significantly
Solution Approach 1:
The blower housing is divided into separate upper and lower bodies that can be manufactured independently and then assembled. This segmentation allows each component to be produced using standard manufacturing processes while maintaining the optimized airflow path design, thereby reducing manufacturing complexity without compromising aerodynamic performance.
Solution Approach 2:
A connecting member is introduced as an intermediary component to join the upper and lower bodies. This connecting member simplifies the assembly process by providing a standardized interface between components, allowing the complex integrated structure to be built from simpler parts while maintaining the desired airflow characteristics.
2Loss of energy
If the narrow passage for forming the mouse is integrated into the outer wall, then the airflow can be effectively directed to the coanda surface, but cleaning and repair become difficult due to inaccessibility of the narrow passage
Solution Approach 1:
The blower housing is segmented into removable upper and lower bodies connected by a connecting member. This segmentation provides access to the narrow passage and mouse formation area that were previously integrated and inaccessible. The connecting member can be removed to allow cleaning tools to reach the narrow passage, while maintaining effective airflow direction when assembled.
3Ease of manufacture
If the outer wall and inner wall are designed as separate components, then manufacturing and assembly become easier, but the precision of airflow path formation and mouse configuration decreases
Solution Approach 1:
The connecting member is designed with asymmetric features including a protrusion on one side and a corresponding recess on the other. This asymmetric design provides precise positioning and alignment between the upper and lower bodies during assembly, ensuring that the airflow path and mouse configuration maintain the required precision even though the components are manufactured separately.
Solution Approach 2:
The connecting member serves as a precision intermediary that ensures accurate alignment between the upper and lower bodies. It includes positioning features such as protrusions and recesses that guide the components into correct relative positions, thereby maintaining manufacturing precision while allowing separate component fabrication and assembly.
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
The design achieves efficient airflow distribution, minimizes flow resistance, and facilitates easy cleaning and maintenance by allowing disassembly of components prone to dust accumulation.
Implementation Method 1
the inner passage, the mouth, and the coanda surface are all formed by the outer wall and the inner wall
Data Source
AI summary
A blower is provided. The blower according to the present disclosure includes: a fan causing airflow; a lower body forming an inner space at which the fan is disposed, and having a suction hole through which air passes; and a first upper body positioned above the lower body, and the first upper body may include a first wall forming a first flow path communicating with the inner space of the lower body and a first panel surrounding the first wall, and the first panel may include a first slit formed through the first panel and discharging air flowing through the first flow path to an outside of the first panel.