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Magnetic bearing and compressor having the same

A magnetic bearing and winding shaft technology, applied in the field of magnetic bearings, can solve the problems of damaged magnetic bearings, reduced concentricity of multiple coils, difficulty in accurately aligning concentricity of multiple coils, etc.

Pending Publication Date: 2021-10-19
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The problem in the prior art is that it is difficult to accurately align the concentricity of the plurality of coils, and the concentricity of the plurality of coils decreases during the operation of the compressor.
If the concentricity of the plurality of coils is lowered, it is difficult to levitate and rotate the rotating body at an accurate position, and there is a problem that the magnetic bearing is damaged due to friction between the rotating body and the magnetic bearing

Method used

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  • Magnetic bearing and compressor having the same
  • Magnetic bearing and compressor having the same
  • Magnetic bearing and compressor having the same

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Embodiment Construction

[0047] The advantages and features of the present invention and the advantages and features of a method for realizing the present invention can be clearly understood with reference to the accompanying drawings and the embodiments described in detail below. However, the embodiments are not limited to the embodiments disclosed below but can be implemented in various forms different from each other. This embodiment is used to fully disclose the present invention and inform those of ordinary skill in the technical field to which the present invention belongs . Throughout the specification, the same reference numerals refer to the same constituent elements.

[0048] As shown, the spatially relative terms "below", "beneath", "lower", "above", "upper", etc. may be used to facilitate Describes the relative relationship between a component and other components. Spatially relative terms should be understood to include, in addition to the directions shown in the drawings, different dir...

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Abstract

The invention provides a magnetic bearing and a compressor having the same. The magnetic according to the present disclosure is characterized by including: 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.

Description

technical field [0001] The invention relates to a magnetic bearing. Background technique [0002] Generally, chiller systems supply chilled water to chilled water demand places, characterized in that the chilled water is cooled by heat exchange between the refrigerant of the circulating refrigeration system and the chilled water between the chilled water demand place and the chiller system cycle. This cooling system is a large-capacity device that can be installed in large buildings, etc. [0003] A compressor for compressing refrigerant is used in a cooling system, and in such a compressor, a magnetic bearing device that supports a rotating body in a non-contact manner is widely used as a bearing device (for example, refer to Patent Document 1). [0004] Usually, the magnetic bearing device is configured to support the load of the rotating body in a non-contact manner by attracting a target placed on the rotating body by a plurality of electromagnets installed around the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/058F04D27/02F04D29/58F25B31/00
CPCF04D29/058F04D29/582F04D27/02F25B31/006H02K7/09H02K7/14H02K3/522F16C32/048F16C32/0461F16C32/047F16C32/0489F16C2362/52F16C32/0444F04D17/10F04D29/051F05D2270/334F25B2339/047F25B1/04F25B49/025F25B2500/13F16C32/044F04D25/062F04D25/0646F16C2360/44H02K2203/12H02K5/22
Inventor 白成基李基旭丁细那
Owner LG ELECTRONICS INC