US 11,641,142 B2Granted

Stator and winding assembly thereof

AssigneeDelta Electronics, Inc.

InventorsCheng-An Wu, Wei-Lun Kao, Min-Fu Hsieh

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Abstract

The present disclosure provides a stator and winding assembly thereof. The stator includes a stator core including a tube wall and a hollow portion and a winding assembly. The winding assembly is disposed in the hollow portion and includes a first winding group and a second winding group. The first winding group includes plural winding units disposed on an inner side of the tube wall and defining an outer layer. The second winding group includes plural winding units disposed on an inner side of the outer layer and defining an inner layer. Any one of the projections of the winding units at the inner layer is partially overlapped with the projections of the two adjacent winding units at the outer layer. A number of turns of the winding units of the first winding group is equal to or greater than that of the winding units of the second winding group.

Claims16

Dependent claims

A stator for a rotary electric machine, the stator comprising:

a stator core comprising a tube wall and a hollow portion;
and
a winding assembly disposed in the hollow portion and comprising:
a first winding group comprising a plurality of winding units, wherein the plurality of winding units of the first winding group are disposed side by side on an inner side of the tube wall and collaboratively define an outer layer;
and
a second winding group comprising a plurality of winding units, wherein the plurality of winding units of the second winding group are disposed side by side on an inner side of the outer layer and collaboratively define an inner layer,
wherein each of the winding units at the inner layer is adjacent to two of the winding units at the outer layer, wherein any one of shadows of the winding units at the inner layer projected on the tube wall is partially overlapped with shadows of the two adjacent winding units at the outer layer projected on the tube wall, and a number of turns of the winding units of the first winding group is greater than a number of turns of the winding units of the second winding group.

4 more elements

A winding assembly configured to be disposed in a stator, wherein the stator comprises a tube wall, and the winding assembly comprises:

a first winding group comprising a plurality of winding units, wherein the plurality of winding units of the first winding group are disposed side by side on an inner side of the tube wall and collaboratively define an outer layer;
and
a second winding group comprising a plurality of winding units, wherein the plurality of winding units of the second winding group are disposed side by side on an inner side of the outer layer and collaboratively define an inner layer,
wherein each of the winding units at the inner layer is adjacent to two of the winding units at the outer layer, wherein any one of shadows of the winding units at the inner layer projected on the tube wall is partially overlapped with shadows of the two adjacent winding units at the outer layer projected on the tube wall, and a number of turns of the winding units of the first winding group is than a number of turns of the winding units of the second winding group.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 17/484,761Filed 24 Sep 2021 · us provisional application
Priority: CN 202110540314.018 May 2021
Published: US 2022/0123619 A121 Apr 2022
Granted: 2 May 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

H02K 3/47
Fastening of windings on the stator or rotor structure: air-gap windings, i.e. iron-free windings
H02K 3/04
Details of windings: windings characterised by the conductor shape, form or construction, e.g. with bar conductors
H02K 3/28
Windings characterised by the conductor shape, form or construction, e.g. with bar conductors: layout of windings or of connections between windings
H02K 3/46
Details of windings: fastening of windings on the stator or rotor structure