The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 04, 2003
Filed:
Mar. 05, 2001
John Bjerregard Jacobsen, Bjerringbro, DK;
Grunfos A/S, Bjerringbro, DK;
Abstract
The motor construction unit is provided for a submersible pump unit and comprises an electric motor with a frequency converter connected in series which are arranged in a common housing casing round in cross section. The frequency converter is as an insert arranged axially flush to the motor and consists essentially of three components, specifically of a common semiconductor element containing the power part, of a component containing the input and intermediate circuit and a component containing the 3 control and regulation electronics. The component containing the power electronics is via a heat distributor connected to the housing casing. The neat distributor is in its outer contour adapted to the inner contour of the housing casing and is pressed into this for heat conduction over the whole periphery.