Ring-Shaped Filter Support for Electric Motor Cooling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing cooling air filters for electric motors are inefficient in terms of material usage and require frequent replacement, leading to high maintenance costs and potential damage during detachment, especially when dealing with varying motor configurations.
Innovation Solution
A cooling air filter system with a foldable, ring-shaped support featuring magnetic, elastic, or Velcro-based gripping mechanisms that securely attach to the motor casing, allowing for easy installation and replacement without damaging the filter or support, and made of transparent material to monitor clogging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a coating of filtering material is applied to cover the casing of the cooling fan, then the air is filtered from dust and liquids, but a large amount of filtering material is used even if only a small part is crossed by the airflow
Solution Approach 1:
The filter support is designed with a ring structure that positions the filtering material only at the periphery where the cooling air flow actually enters the motor. This concentrates the filtering function in the specific location needed rather than covering the entire fan casing, thus reducing the total amount of filtering material while maintaining effective filtration of the incoming air stream.
2Ease of manufacture
If double-sided adhesive is used to attach the filtering material to the fan casing, then the filter is easy to install, but the adhesive becomes too strong to allow easy detachment and replacement
Solution Approach 1:
The filtering material is segmented from the fan casing by introducing a removable ring-shaped filter support as an intermediate component. The filtering material is attached to the ring support with adhesive, while the ring support itself is mechanically removable from the fan casing. This segmentation allows the filtering material to be easily replaced by simply removing the ring support, eliminating the need to deal with strong adhesive bonds directly on the fan casing.
3Reliability
If the filtering material is frequently replaced, then the filter maintains effectiveness, but the maintenance operation becomes time-consuming and complex
Solution Approach 1:
The ring-shaped filter support is designed with pre-formed gripping elements (such as outwardly directed ribs or engagement features) that automatically engage with corresponding features on the fan casing during installation. This preliminary configuration of the support structure enables rapid installation and removal of the filtering material without requiring complex alignment or fastening operations, significantly reducing maintenance time.
4Adaptability or versatility
If a standardized filter design is used, then it can be applied to various motor configurations, but it may not fit all non-circular or irregularly shaped fan casings
Solution Approach 1:
The ring-shaped filter support incorporates foldable arms that can be dynamically adjusted to match the specific geometry of different fan casings. The arms can be folded inward during transport and installation, then positioned to conform to the contours of the fan casing opening. This dynamic adjustability allows a single standardized ring support design to adapt to various motor configurations including non-circular and irregularly shaped casings, maintaining both versatility and fitting accuracy.
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 enables fast, practical, and cost-effective maintenance of cooling air filters across various electric motor configurations, ensuring efficient airflow purification and reducing the frequency and complexity of filter replacements.
Implementation Method 1
The gripping means consist of an interlocking seat for a permanent magnet
Implementation Method 2
a groove for receiving an annular fixing means, preferably an elastic ring, which is inserted in said grooves and keeps the ends of the foldable arms pressed against the casing
Data Source
AI summary
A cooling air filter for an electric motor, includes a filter with a planar shape and minimum dimension so as to cover the area of the slits of a covering casing of a fan for an electric motor for which it is intended; and the filter is housed in a support which is fixed in a steady and removable way on the surface of the casing; the support having a frame-like structure from which at least two arms extend, which are diametrically opposite in the frame-like structure, and which are provided at their end with fixing and gripping means of the arms on the casing itself; the fixing means being configured for the fast detachment from and hooking onto said casing.