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A rotor for a motor

A rotor and synchronous motor technology, applied in the direction of electromechanical devices, electrical components, electric components, etc., can solve the problem of reducing the radial force density and amplitude, achieve the effect of reducing magnetic leakage flux and improving the strength of anti-centrifugal force

Active Publication Date: 2018-07-31
VOLKSWAGEN AG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no solution to date to reduce the radial force density amplitude without compromising power, torque or material cost

Method used

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  • A rotor for a motor
  • A rotor for a motor
  • A rotor for a motor

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Embodiment Construction

[0024] figure 1 A cross-sectional view of a rotor (100) is shown, wherein the rotor (100) has recesses in the form of magnet slots (11, 12) which are designed to receive magnets (13, 14). The magnet slots are arranged in the rotor such that the first end faces (15) of the magnets (13, 14) are opposite to the circumferential face (23) of the rotor and the second end faces (16) of the magnets (13, 14) are opposite to the circumferential face (23) of the rotor. Peripheral faces facing away from each other. The magnet slots ( 11 , 12 ) with the magnets ( 13 , 14 ) located in the magnet slots run obliquely when viewed radially. Each magnet slot (11, 12) has a profile (17, 18) in the region of the first end face (15, 15a), which not only extends directly adjacent to the first end face (15, 15a), but also along the The circumferential (23) view of the rotor extends laterally of the magnets (13, 14). The moldings (17, 18) thus form a combined cavity consisting of the aforementioned...

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Abstract

The invention provides a rotor (100) for a motor, in particular a rotor blade for a permanent magnet excited synchronous motor. The rotor can better reduce acoustic sensitivity caused by radial forcedensity amplitude without additional material input. The rotor comprises at least one magnetic body groove (11, 12) each used for accommodating one magnetic body (13, 14), wherein the magnetic body grooves (11, 12) are surrounded by the rotor (100) in the radial direction. Each of the magnetic body has a first end face (15, 15a) facing the peripheral surface of the rotor (100) and a second end face (16, 16a) away from the peripheral surface of the rotor (100). The magnetic body grooves (11, 12) have modelings (17, 18) in the areas of the first end faces (15, 15a) of the magnetic bodies. The modelings (17, 18) abut on the first end faces (15, 15a) via first areas (20, 20a) and extend on the side surfaces of the magnetic bodies (13, 14) in the peripheral direction of the rotor via at least one second area (21, 21a).

Description

technical field [0001] The invention relates to a rotor for an electric machine, in particular a rotor blade for a permanently excited synchronous machine, a permanently excited synchronous machine with a rotor, a hybrid drive, in particular for a motor vehicle Hybrid drives with permanently excited synchronous motors and / or rotors. Background technique [0002] In a synchronous machine, the shaft is driven in that the shaft-connected rotor equipped with permanent magnets is oriented in a rotating field formed by a stator with voltage-loaded coils. The permanent magnets are arranged in magnet slots which are completely surrounded by the rotor. It is known to influence the magnetic flux in the rotor by shaping the magnet slots. The choice of the geometry of the molding on the magnet slots thus becomes an important influencing factor for the torque of the electric machine. [0003] A rotor having this type of configuration is known from DE 10 2014 219 894 A1 for a three-pha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/27
CPCH02K1/2706H02K2213/03H02K1/2766H02K1/27
Inventor M.克鲁斯R.赫尔默H.艾因菲尔德H.德克F.比特纳
Owner VOLKSWAGEN AG