Blower Device Cooling Motor Coils via Segmented Yoke Vent Holes
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Solution Overview
Problem
The existing blower devices do not effectively enhance the cooling properties of motor coils, which can lead to reduced performance and efficiency.
Innovation Solution
A blower device design that incorporates a fan, a heat sink, and strategically positioned vent holes and rubber seals to promote airflow and heat dissipation, ensuring effective cooling of motor coils.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the coils of the motor are surrounded by the yoke, then the motor structure is compact and protected, but the cooling property of the coils is degraded
Solution Approach 1:
The yoke is segmented by providing opening portions that separate the coil-winding portions, allowing cooling air to pass through the yoke structure itself rather than being blocked by a solid enclosure
Solution Approach 2:
Vent holes are introduced as intermediary structures that facilitate the flow of cooling air through the yoke, mediating between the need for structural protection and the requirement for effective cooling
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 solution ensures improved cooling properties of motor coils by enhancing airflow and heat dissipation, thereby maintaining the performance and efficiency of the motor.
Implementation Method 1
a fan (I) rotated by the motor (M)
Implementation Method 2
heat sink (200) made of a metal and thermally connected to the printed circuit board PB
Implementation Method 3
The heat dissipation of the heat sink 200 is promoted by the rotation of the fan I
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A blower device includes: a fan (I); a motor (M) rotating the fan; a cover (90) covering a stator (50) and a coil (30) of the motor; a printed circuit board (PB) electrically connected to the coil; a case (10, 20) housing the printed circuit board and facing the fan; and an elastic body (110) arranged between the case and the cover and formed into an annular shape, wherein the cover is formed with a vent hole (96) arranged radially outward from the elastic body.