Motor Wind Guide Structure for Compact Cooling Airflow
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Solution Overview
Problem
Conventional rotating machines and hoists lack effective cooling performance due to inefficient wind flow through ventilation passages, leading to potential efficiency decreases in motor operation.
Innovation Solution
A rotating machine design incorporating a stator, rotor, outer frame, cover member, blower blade, and wind guide member that guides wind from a ventilation inlet to an outlet, optimizing the position and angle of the wind guide member to achieve improved cooling by creating intermediate pressure zones for efficient airflow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a separate blower facility is provided to cool the motor, then cooling performance is improved, but the apparatus size increases
Solution Approach 1:
The wind guide member is integrated into the existing cover member structure, merging the cooling function with the housing. The cover member includes a wind guide portion that directs wind from the blower blades through the stator, eliminating the need for a separate blower facility while maintaining compact apparatus size
Solution Approach 2:
The cover member serves multiple functions: it provides structural enclosure and simultaneously acts as a wind guide to direct cooling airflow. The blower blades perform both propulsion and cooling air generation functions, demonstrating multi-functionality that improves cooling without increasing apparatus size
2Temperature
If only a ventilation passage is provided without wind guidance, then the apparatus structure is simple, but cooling performance is insufficient
Solution Approach 1:
The wind guide member is divided into multiple wind guide surfaces that segment the airflow path. These surfaces are arranged to direct wind from different regions of the blower blades toward the stator, creating efficient cooling zones without requiring complex external ventilation structures
Solution Approach 2:
The wind guide surfaces are inclined at specific angles relative to the axial direction, utilizing three-dimensional geometric arrangement to optimize airflow direction. This angular configuration enables effective wind guidance using simple geometric forms rather than complex mechanical structures
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
Enhances cooling performance by improving airflow and ventilation amounts, reducing the risk of motor overheating and maintaining efficiency without upsizing the apparatus.
Implementation Method 1
a position in the radial direction of an end portion on the one side in the axial direction of the wind guide member is located at a position where a pressure received by the wind generated in the blower blade is an intermediate pressure between a high pressure and a low pressure
Data Source
AI summary
The present invention relates to a rotating machine and a hoist. An object of the present invention is to provide a rotating machine and a hoist with improved cooling performance. A motor (10) includes: a stator (11) and a rotor (12); a rib part (12d) that rotates in accordance with rotation of the rotor (12), and a wind guide member (16) that guides wind taken in from a ventilation inlet (15aa) by rotation of the rib part 12d to a ventilation outlet (15ab).