PERMANENT-MAGNET DIRECT-DRIVE WIND POWER GENERATOR, SYSTEM AND STATOR THEREOF - XINJIANG GOLDWIND SCIENCE & TECHNOLOGY CO LTD

Title:

PERMANENT-MAGNET DIRECT-DRIVE WIND POWER GENERATOR, SYSTEM AND STATOR THEREOF

Document Type and Number:

WIPO Patent Application WO/2016/119511

Kind Code:

A1

Abstract:

Disclosed are a permanent-magnet direct-drive wind power generator, a system and a stator thereof, wherein the stator comprises a stator bracket (1), a stator iron core (8) arranged on the peripheral wall of the stator bracket and a paddle side tooth pressing plate (6). The paddle side tooth pressing plate is arranged on a paddle side axial end face of the stator iron core. At least one first air hole (2) is formed in the peripheral wall of the stator bracket. At least one second air hole (5) is formed in the paddle side tooth pressing plate. The stator further comprises at least one air flow passage (9) used for linking the first air holes with the second air holes. The air flow passage penetrates through the interior of the stator iron core. The electric motor can self-adaptively dry itself, the service life of permanent magnet poles is prolonged, an "insulation level reduction" of components inside the electric motor is prevented, the risk that the electric motor is corroded by severe air flow is lowered, and insulation reliability is improved.

Inventors:

WANG DONG (CN)
MA SHENGJUN (CN)
LI YANHUI (CN)
LIU CHENGQIAN (CN)
ZHAO XIANG (CN)

Application Number:

PCT/CN2015/094821

Publication Date:

August 04, 2016

Filing Date:

November 17, 2015

Export Citation:

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Assignee:

XINJIANG GOLDWIND SCIENCE & TECHNOLOGY CO LTD (CN)

International Classes:

H02K5/10; H02K1/12

Foreign References:

CN104600886A	2015-05-06
CN204334142U	2015-05-13
CN1290420A	2001-04-04
CN1848620A	2006-10-18
CN1242640A	2000-01-26
US5000769A	1991-03-19

Other References: