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US 11,909,296 B2Granted
Magnetic bearing and compressor having the same
AssigneeLG Electronics Inc.
InventorsSena Jeong, Kiwook Lee, Seongki Baek
Life of this patent
Estimating the term…
Abstract
A magnetic bearing is provided. The magnetic according to the present disclosure includes: a stator core disposed to surround a central axis; a plurality of bobbins coupled to the stator core; a coil wound around the bobbin; and a positioning member coupled to the plurality of bobbins and determining positions of the plurality of bobbins, and the positioning member has a circular shape centered on a central point.
Claims20
A magnetic bearing comprising:
- a stator core disposed to surround a central axis;
- a plurality of bobbins coupled to the stator core;
- a coil wound around each of the plurality of bobbins;
- and
- a positioning member coupled to the plurality of bobbins via a plurality of fasteners and determining positions of the plurality of bobbins,
- wherein the positioning member has a circular shape centered on a central point,
- wherein the positioning member comprises a plurality of coupling holes extending through an entire thickness of the positioning member, and
- wherein the plurality of fasteners extend through the plurality of coupling holes and are inserted by passing from an outer surface of the positioning member into the plurality of coupling holes.
5 more elements
A magnetic bearing comprising:
- a stator core disposed to surround a central axis;
- a plurality of bobbins coupled to the stator core;
- a coil wound around each of the plurality of bobbins;
- and
- a positioning member coupled to the plurality of bobbins and determining positions of the plurality of bobbins,
- wherein the positioning member has a circular shape centered on a central point, and
- wherein each of the plurality of bobbins comprise:
- a coil coupling part on which the coil is wound;
- and
- a holder comprising a coupling groove into which the positioning member is inserted and a fastening groove formed in the coupling groove and to which a fastening member is fastened.
7 more elements
A magnetic bearing comprising:
- a stator core disposed to surround a central axis;
- a plurality of bobbins coupled to the stator core;
- a coil wound around the bobbin;
- and
- a positioning member coupled to the plurality of bobbins and determining positions of the plurality of bobbins,
- wherein each of the plurality of bobbins comprise a coupling groove into which the positioning member is inserted, and
- wherein the coupling grooves have an arc-shape.
4 more elements
A compressor comprising:
- one or more impellers for suctioning and compressing a refrigerant;
- a motor rotating the impeller;
- a rotation shaft to which the impeller and the motor are connected;
- and
- a magnetic bearing supporting the rotation shaft in a radial direction crossing an axial direction of the rotation shaft,
- wherein the magnetic bearing comprises:
- a stator core disposed to surround a central axis;
- a plurality of bobbins coupled to the stator core;
- a coil wound around the bobbin;
- and
- a positioning member coupled to the plurality of bobbins via a plurality of fasteners and determining positions of the plurality of bobbins,
- wherein the positioning member comprises a plurality of coupling holes extending through an entire thickness of the positioning member,
- wherein the positioning member has a circular shape centered on a central point, and
- wherein the plurality of fasteners extend through the plurality of coupling holes and are inserted by passing from an outer surface of the positioning member into the plurality of coupling holes.
11 more elements
Dependencies are inferred from the claim text.