A novel transmission magnetic head for a rope reel

By employing a double-layer sleeve structure and a 90° staggered permanent magnet design, the problem of controlling the stability and response speed of the transmission magnetic head in vacuum glass doors and windows was solved, achieving precise steering judgment and reducing iron loss, thus extending bearing life.

CN224285791UActive Publication Date: 2026-05-26JIANGYIN ZHIJIAN ENERGY SAVING TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGYIN ZHIJIAN ENERGY SAVING TECH CO LTD
Filing Date
2025-08-13
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The existing winding drive magnetic head cannot effectively transmit magnetic field changes to the sensing end, resulting in control stability and response speed that cannot meet the high functional requirements of vacuum glass doors and windows.

Method used

It adopts a double-sleeve structure. The inner sleeve encapsulates two sets of permanent magnets with a 90° staggered layout. They are sealed by plastic isolation pillars and plugs, outputting a sinusoidal signal with a 90° phase difference. The concave-convex interlocking structure suppresses the circumferential rotation of the permanent magnets. The outer sleeve conducts magnetic shielding to block external interference, and the inner sleeve restricts magnetic circuit leakage.

Benefits of technology

It achieves precise steering detection, reduces iron loss and vibration stress, extends bearing life, and meets the control requirements of heavy vacuum glass.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a novel transmission magnetic head for a rope winder, belonging to the technical field of rope winder technology. This novel transmission magnetic head includes two sets of coaxially arranged first and second sleeves. The second sleeve is located inside the first sleeve, and inside the second sleeve are two sets of staggered permanent magnets. An isolation column is provided between the two sets of permanent magnets. Each set of permanent magnets has a plug at its outer end, and each plug has a bearing at its outer end. The 90° staggered arrangement creates an orthogonal phase difference between the magnetic fields of the two permanent magnets in space, outputting two sinusoidal signals with a 90° phase difference, achieving precise direction determination. The interlocking structure of the concave and convex parts allows the protrusions to be embedded in the grooves to suppress the circumferential rotation of the permanent magnets, avoiding relative displacement during high-speed rotation.
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