US 12,003,166 B2Granted

Device with stator and rotor, and wind generating set

AssigneeXinjiang Goldwind Science & Technology Co., Ltd.

InventorsLikun Liu, Yanhui Li, Liang Peng

Life of this patent

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Abstract

Disclosed is a device with a stator and a rotor, the device comprising: a stator; a rotor, wherein an air gap is provided between the rotor and the stator; and an air gap protection device fixedly connected to the stator, wherein the radial distance between the air gap protection device and the rotor is less than the radial distance between the stator and the rotor, and the air gap protection device rotates relative to the rotor when in contact with the rotor. By arranging the air gap protection device fixedly connected to the stator, the air gap protection device can rotate relative to the rotor when in contact with the rotor, and the radial distance between the air gap protection device and the rotor is less than the radial distance between the stator and the rotor.

Claims20

Dependent claims

A device with a stator and a rotor, comprising:

the stator;
the rotor, wherein an air gap is formed between the rotor and the stator in a radial direction of the stator and the rotor;
and
an air gap protection device fixedly connected to one of the stator and the rotor, wherein a radial distance is formed between the air gap protection device and the other one of the stator and the rotor in the radial direction of the stator and the rotor, and the radial distance is less than a radial distance between the stator and the rotor;
wherein the air gap protection device is configured to be in contact with the other one of the stator and the rotor and the air gap protection device rotates relative to the other one of the stator and the rotor in case that the rotor rotates eccentrically and the radial distance between the stator and the rotor is reduced.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/756,268Filed 4 Jun 2020
Priority: CN 201911154878.X21 Nov 2019
Published: US 2022/0407386 A122 Dec 2022
Granted: 4 Jun 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification15 codes

H02K 1/12
Characterised by the shape, form or construction: stationary parts of the magnetic circuit
H02K 7/12
Structural association with clutches, brakes, gears, pulleys or mechanical starters: with auxiliary limited movement of stators, rotors or core…
F03D 1/06
Wind motors with rotation axis substantially parallel to the air flow entering the rotor: rotors
G08B 21/182
Status alarms: level alarms, e.g. alarms responsive to variables exceeding a threshold

Family

US 2022/0407386 A1Pre-grant publication · published 22 Dec 2022
US 12,003,166 B2This patent

From the US filing history. Foreign family members aren’t listed.

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