US 10,122,225 B2Granted

Inner-rotor motor

AssigneeSunonwealth Electric Machine Industry Co., Ltd.

InventorsAlex Horng, Tso-Kuo Yin, Duo-Nian Shan

Life of this patent

Estimating the term…

Loading patent…

Abstract

An inner-rotor motor includes a separating member, a stator and a rotor. The separating member is made of an insulating material and includes a first separating part and a second separating part. The separating member includes at least one engaging portion extending along an axial direction of the inner-rotor motor. The stator includes an iron core received in a space jointly defined by the first and second separating parts. The iron core includes at least one engaging groove arranged on an outer surface thereof and extending along the axial direction of the inner-rotor motor. The at least one engaging portion is received in the at least one engaging groove. The rotor is rotatably coupled to the separating member. As such, a convenient assembly and reduced volume of the inner-rotor motor are provided.

Claims20

Dependent claims

An inner-rotor motor comprising:

a separating member made of an insulating material and comprising a first separating part and a second separating part, wherein the separating member comprises at least one engaging portion extending along an axial direction of the inner-rotor motor, wherein the first separating part comprises a base plate extending along a radial direction of the inner-rotor motor, wherein a lateral wall is connected to the base plate and extends along the axial direction of the inner-rotor motor towards the second separating part, wherein the at least one engaging portion comprises a plurality of first engaging portions arranged on the lateral wall of the first separating part, wherein the first separating part comprises a first channel arranged at one of the plurality of first engaging portions, wherein the second separating part comprises a base plate extending along the radial direction of the inner-rotor motor, wherein a lateral wall is connected to the base plate of the second separating part and extends along the axial direction of the inner-rotor motor towards the first separating part, wherein the at least one engaging portion further comprises a plurality of second engaging portions aligned with the plurality of first engaging portions along the axial direction of the inner-rotor motor, wherein the plurality of second engaging portions is arranged on the lateral wall of the second separating part and extends along the axial direction of the inner-rotor motor, and wherein the second separating part comprises a second channel arranged at one of the plurality of second engaging portions;
a stator comprising an iron core received in a space jointly defined by the first and second separating parts, wherein the iron core comprises a plurality of engaging grooves arranged on an outer surface thereof and extending along the axial direction of the inner-rotor motor, and wherein the plurality of first engaging portions and the plurality of second engaging portions are received in the plurality of engaging grooves;
a rotor rotatably coupled to the separating member;
and
a metallic housing receiving the separating member.

2 more elements

An inner-rotor motor comprising:

a separating member made of an insulating material and comprising a first separating part and a second separating part, wherein the separating member comprises at least one engaging portion extending along an axial direction of the inner-rotor motor, wherein the first separating part comprises a base plate extending along a radial direction of the inner-rotor motor, wherein a lateral wall is connected to the base plate and extends along the axial direction of the inner-rotor motor towards the second separating part, wherein the at least one engaging portion comprises a plurality of first engaging portions arranged on the lateral wall of the first separating part, wherein the first separating part comprises a first channel arranged at one of the plurality of first engaging portions, wherein the second separating part comprises a base plate extending along the radial direction of the inner-rotor motor, wherein a lateral wall is connected to the base plate of the second separating part and extends along the axial direction of the inner-rotor motor towards the first separating part, and wherein the at least one engaging portion further comprises a plurality of second engaging portions aligned with the plurality of first engaging portions along the axial direction of the inner-rotor motor, wherein the plurality of second engaging portions is arranged on the lateral wall of the second separating part and extends along the axial direction of the inner-rotor motor, and wherein the second separating part comprises a second channel arranged at one of the plurality of second engaging portions;
a stator comprising an iron core received in a space jointly defined by the first and second separating parts, wherein the iron core comprises a plurality of engaging grooves arranged on an outer surface thereof and extending along the axial direction of the inner-rotor motor, and wherein the plurality of first engaging portions and the plurality of second engaging portions are received in the plurality of engaging grooves;
and
a rotor rotatably coupled to the separating member,
wherein the separating member further comprises a through-hole arranged at the first separating part or the second separating part, wherein a wire extends out of the separating member via the through-hole, and wherein the wire is received in the first channel or the second channel.

2 more elements

An inner-rotor motor comprising:

a separating member made of an insulating material and comprising a first separating part and a second separating part, wherein the separating member comprises at least one engaging portion extending along an axial direction of the inner-rotor motor, wherein the first separating part comprises a base plate extending along a radial direction of the inner-rotor motor, wherein a lateral wall is connected to the base plate and extends along the axial direction of the inner-rotor motor towards the second separating part, wherein the at least one engaging portion comprises a plurality of first engaging portions arranged on the lateral wall of the first separating part, wherein the first separating part comprises a first channel arranged at one of the plurality of first engaging portions, wherein the second separating part comprises a base plate extending along the radial direction of the inner-rotor motor, wherein a lateral wall is connected to the base plate of the second separating part and extends along the axial direction of the inner-rotor motor towards the first separating part, and wherein the at least one engaging portion further comprises a plurality of second engaging portions aligned with the plurality of first engaging portions along the axial direction of the inner-rotor motor, wherein the plurality of second engaging portions is arranged on the lateral wall of the second separating part and extends along the axial direction of the inner-rotor motor, and wherein the second separating part comprises a second channel arranged at one of the plurality of second engaging portions;
a stator comprising an iron core received in a space jointly defined by the first and second separating parts, wherein the iron core comprises a plurality of engaging grooves arranged on an outer surface thereof and extending along the axial direction of the inner-rotor motor, and wherein the plurality of first engaging portions and the plurality of second engaging portions are received in the plurality of engaging grooves;
and
a rotor rotatably coupled to the separating member,
wherein the first channel is in a form of a receiving groove formed on an outer surface of the lateral wall of the first separating part, and wherein the second channel is also in a form of a receiving groove formed on an outer surface of the lateral wall of the second separating part.

2 more elements

An inner-rotor motor comprising:

a separating member made of an insulating material and comprising a first separating part and a second separating part, wherein the separating member comprises at least one engaging portion extending along an axial direction of the inner-rotor motor, wherein the first separating part comprises a base plate extending along a radial direction of the inner-rotor motor, wherein a lateral wall is connected to the base plate and extends along the axial direction of the inner-rotor motor towards the second separating part, wherein the at least one engaging portion comprises a plurality of first engaging portions arranged on the lateral wall of the first separating part, wherein the first separating part comprises a first channel arranged at one of the plurality of first engaging portions, wherein the second separating part comprises a base plate extending along the radial direction of the inner-rotor motor, wherein a lateral wall is connected to the base plate of the second separating part and extends along the axial direction of the inner-rotor motor towards the first separating part, and wherein the at least one engaging portion further comprises a plurality of second engaging portions aligned with the plurality of first engaging portions along the axial direction of the inner-rotor motor, wherein the plurality of second engaging portions is arranged on the lateral wall of the second separating part and extends along the axial direction of the inner-rotor motor, and wherein the second separating part comprises a second channel arranged at one of the plurality of second engaging portions;
a stator comprising an iron core received in a space jointly defined by the first and second separating parts, wherein the iron core comprises a plurality of engaging grooves arranged on an outer surface thereof and extending along the axial direction of the inner-rotor motor, and wherein the plurality of first engaging portions and the plurality of second engaging portions are received in the plurality of engaging grooves;
and
a rotor rotatably coupled to the separating member,
wherein the first channel is in a form of an extending hole extending through two opposite sides of the one of the plurality of first engaging portions along the axial direction of the inner-rotor motor, and wherein the second channel is in a form of another extending hole extending through two opposite sides of the one of the plurality of second engaging portions along the axial direction of the inner-rotor motor.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/131,108Filed 18 Apr 2016
Priority: TW 104114484 A6 May 2015
Published: US 2016/0329771 A110 Nov 2016
Granted: 6 Nov 2018
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

H02K 1/185
Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures: to outer stators
H02K 5/04
Casings; Enclosures; Supports: casings or enclosures characterised by the shape, form or construction thereof
H02K 5/06
Casings or enclosures characterised by the shape, form or construction thereof: cast metal casings
H02K 5/1732
Using bearings with rolling contact, e.g. ball bearings: radially supporting the rotary shaft at both ends of the rotor

Family

US 2016/0329771 A1Pre-grant publication · published 10 Nov 2016
US 10,122,225 B2This patent

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

Timeline

Citations

Open elsewhere

Building an agent or pulling many patents? Use the API or MCP server instead of scraping pages. Get an API key