Permanentmagnetbasierter Magnetisierer

Details

Veröffentlichungs-Nr.

EP3799086

Aktenzeichen

EP19199709

Anmeldetag

25. September 2019

Veröffentlichung

27. März 2024

Erteilung

27. März 2024

Rechtsraum

EP

IPC

H01F13/00H01F7/02

Abstract

A magnetiser comprising a housing, a passage arranged inside the housing, and a permanent magnet assembly arranged outside the passage to provide a magnetic field passing through the passage, said housing comprising an inlet to the passage and an outlet from the passage such that an object to be magnetised can be inserted into the passage via the inlet in the housing and removed via the outlet in the housing, characterized in that the passage comprises a uniform portion where opposing surfaces of the permanent magnet assembly are arranged a uniform distance apart along the length of the uniform portion and a diverging portion arranged between one end of the uniform portion of the passage and the outlet of the housing where opposing surfaces of the permanent magnet assembly diverge such that the distance between opposing surfaces of the diverging portion nearest the uniform portion is less than the distance between opposing surfaces of the diverging portion nearest the outlet and in that the average angle of the normal vector of the opposing surfaces of the diverging portion to a longitudinal centre axis of the passage is greater than 45 degrees. In this way, a permanent magnet based magnetiser is provided which has a low distortion of the magnetic field at the diverging portion.

Anmelder

Firma

Grundfos Holding A/S

Land

🇩🇰 Dänemark

Fachgebiete