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Solution Overview
Problem
Existing blowers face challenges in effectively adjusting blowing direction and intensity, requiring excessive power consumption due to the need to move or rotate the blowing device to adjust the airflow.
Innovation Solution
A blower design incorporating a fan with a lower body and an upper body featuring slits that can be adjusted by a door mechanism, allowing for the generation of direct or indirect airflow using the Coanda effect, with slits that can be opened or closed to control the blowing direction and range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the blowing device is moved or rotated to adjust blowing direction, then the blowing direction can be adjusted, but excessive power is consumed
Solution Approach 1:
The blowing device is segmented into multiple independent slits (front slit and rear slit) that can be controlled separately. Instead of moving the entire device, individual slits are opened or closed to adjust the blowing direction, significantly reducing power consumption while maintaining directional control capability.
Solution Approach 2:
The slits are designed to be dynamically openable and closable through door mechanisms. This dynamic structure allows the blowing direction to be adjusted by changing the configuration of open/closed slits rather than physically moving the entire device, achieving energy-efficient directional control.
2Adaptability or versatility
If multiple slits are used to generate direct or indirect wind, then airflow flexibility is improved, but device complexity increases
Solution Approach 1:
The device uses multiple slits (front slit and rear slit) that can be independently controlled. By combining different opening/closing patterns of these segmented slits, both direct wind and indirect wind can be generated, providing airflow flexibility without requiring complex mechanical structures.
Solution Approach 2:
The airflow characteristics are adjusted by changing the operational parameters of the slits (open/closed states) rather than changing the physical structure. By varying which slits are open, the device can switch between direct wind mode and indirect wind mode, achieving versatility through parameter control.
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 blower provides efficient airflow adjustment with reduced power consumption by utilizing a door mechanism to control slit openings, enabling direct or indirect wind generation and flexible airflow direction.
Implementation Method 1
a fan generating flow of air
Implementation Method 2
forms a channel that communicates with the internal space of the lower body, and having a space formed through the upper body in a front-rear direction
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A blower is disclosed. The blower of the present disclosure comprises: a fan for producing air flow; a lower body providing an inner space in which the fan is installed, and having an intake hole through which air passes; an upper body placed on the lower body to form a flow passage which communicates with the inner space of the lower body, and having a space which is formed to pass through the upper body in the forward and backward direction, wherein the upper body includes a slit which is formed through the upper body and through which air flowing through the flow passage of the upper body is discharged to the space, and the slit comprises: a rear slit adjacent to the rear end of the upper body; and a front slit adjacent to the front end of the upper body.