Suction head provided with perforated support ring

The suction head addresses the issue of bearing overheating in vacuum cleaners by using a support ring with through holes to facilitate air flow and cooling, enhancing reliability and allowing for smaller bearings.

JP2025043301APending Publication Date: 2025-03-28SEB SA
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Patent Information

Application Number
JP2024153819
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-09-06
Filing Date
2024-09-06
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

Vacuum cleaners with rotating brushes often experience bearing overheating due to the proximity of the drive motor, which can impair the reliability and performance of the suction head.

Method used

The suction head incorporates a support ring with through holes that allow an air stream to flow through, providing cooling to the bearings by thermal conduction when the vacuum is generated, thus reducing bearing heating and enhancing reliability.

Benefits of technology

This configuration effectively cools the bearings, maintaining their integrity and reliability, while also allowing for the use of smaller bearings, reducing the radial size of the rotating brush.

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Abstract

To provide a suction head which is simple and economical in structure while ensuring cooling.SOLUTION: The suction head comprises: a main body (4); a rotating brush (11) comprising a brush body (12); a drive motor (17) housed in a motor housing (21) delimited by the brush body (12) and configured to drive the brush body (12) in rotation about an axis of rotation; a bearing support (31) fixed relative to the main body (4); a bearing (28) mounted on the bearing support (31); and a support ring (26) interposed between the bearing (28) and an inner circumferential surface of the brush body (12) and including at least one through hole (44) through which an air stream is capable of flowing.SELECTED DRAWING: Figure 6
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