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Rotor comprising added pole shoes covering the magnets and a rotary electric machine

A technology for rotating electrical machines and rotors, applied in the direction of magnetic circuit rotating parts, magnetic circuits, electrical components, etc., can solve problems such as magnetic loss, and achieve the effects of reduced volume, cheap manufacturing, and good safety

Inactive Publication Date: 2013-06-12
MOTEURS LEROY SOMER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Magnetic losses occur because some portion of the magnetic flux travels between the poles of the magnet in the portion of the sheet extending around the housing

Method used

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  • Rotor comprising added pole shoes covering the magnets and a rotary electric machine
  • Rotor comprising added pole shoes covering the magnets and a rotary electric machine
  • Rotor comprising added pole shoes covering the magnets and a rotary electric machine

Examples

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Embodiment Construction

[0069] in figure 1 Shown therein is a rotating electric machine 1 according to the invention comprising a concentric rotor 2 and a stator 3 with the stator 3 on the outside and the rotor 2 on the inside, mounted on a shaft 4 with its axis X.

[0070] In the described example, the stator 3 includes channels 6 in which coolant, in particular water, flows.

[0071] The electric machine 1 also includes a housing 8 surrounding the stator and the rotor. The housing 8 includes an end plate 8a that supports the bearing of the rotor shaft. The end plate 8a includes a plurality of holes closed by a trap door 9. The function of the end plate 8a will be further explained below.

[0072] As a variant, the motor can be open, cooled by air flow, and then without end plates.

[0073] Will now refer to figure 2 The rotor 2 of the motor 1 will be described in more detail to FIG. 4.

[0074] In the example in question, the rotor 2 includes eight magnetic poles 11 placed on a hub 12 comprising a stack of...

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Abstract

The present invention relates to a rotor (2) for a rotary electric machine (1), comprising: a hub comprising a stack of sheets, permanent magnets arranged on the surface of the stack of sheets, pole shoes covering the magnets and an attachment means for holding the pole shoes on the hub.

Description

Technical field [0001] The present invention relates to a rotor for a rotating electric machine and a rotating electric machine including the rotor. Background technique [0002] Patent application JP-10-336929 discloses a rotor with permanent magnets, wherein the magnets are placed on a plurality of parts forming a seat, which are themselves attached to the rotor body, and the magnets are assembled by pole shoes. cover. The attachment screw is engaged in the part forming the seat and in the pole shoe. [0003] There is also known a rotor comprising embedded magnets inserted in a housing of a stack of sheets. Because a certain part of the magnetic flux travels between the magnetic poles of the magnet in the part of the sheet extending around the housing, magnetic loss occurs. Summary of the invention [0004] The objective of the present invention is to further enhance the rotor of a rotating electric machine by proposing a rotor according to an aspect of the present invention, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/27
CPCH02K1/276H02K1/274H02K1/28
Inventor 科尔·福卡尔亚尼克·梅西纳皮埃尔·里歌德托马斯·韦谢尔
Owner MOTEURS LEROY SOMER