Rotor and motor and compressor having the same
A rotor and rotor punching technology, applied in the field of motors and compressors, can solve problems such as difficulty in reducing air-gap magnetic field harmonics, increased difficulty in rotor optimization, and poor air-gap precision, achieving small vibration, low harmonic content, Effect of reducing harmonic content
Active Publication Date: 2019-10-18
GUANGDONG WELLING ELECTRIC MACHINE MFG +1
View PDF3 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
If the inner surface of the stator and the outer surface of the rotor are point-to-point, the accuracy of the air gap will be poor
[0003] However, if the inner circular surface of the stator and the outer circular surface of the rotor are a large range of concentric arcs to concentric arcs (that is, there are concentric arcs with a large span angle in the outer arc of the rotor core), it will lead to difficulty in rotor optimization. increase, it is difficult to reduce the air-gap magnetic field harmonics
[0004] Therefore, it is difficult for existing rotors to improve the accuracy of the air gap and reduce the harmonics of the air gap magnetic field
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0028] Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0029] A rotor 10 according to an embodiment of the present invention will be described below with reference to the drawings. like Figure 1-Figure 4 As shown, the rotor 10 according to the embodiment of the present invention includes a plurality of first rotor punches 110 , a plurality of second rotor punches 120 and a plurality of magnets (not shown in the figure).
[0030] Each first rotor punch 110 is provided with a first shaft hole 111 and a plurality of first receiving grooves 112, and the outer edge of the cross section of each first rotor punch 110 includes a plurality of arc segments 113, and each arc The center of the segment 113 is spaced apart from...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The inventin discloses a rotor, and a motor and a compressor possessing the rotor. The rotor comprises a plurality of first rotor punching sheets, a plurality of second rotor punching sheets and a plurality of magnets. Each first rotor punching sheet is provided with a first shaft hole and a plurality of first accommodation grooves. An outer edge of a cross section of each first rotor punching sheet comprises a plurality of arc segments. A center of circle of each arc segment is arranged at intervals with a central axis of the first shaft hole. Each second rotor punching sheet is provided with a second shaft hole and a plurality of second accommodation grooves. Central axes of each second shaft hole and each first shaft hole are superposed. An outer edge of the cross section of each second rotor punching sheet is in a round shape. A center of circle of the outer edge of the cross section of each second rotor punching sheet is located at the central axis of the second shaft hole. The plurality of magnets are arranged in the plurality of first accommodation grooves and the plurality of second accommodation grooves. The rotor possesses advantages that the rotor is convenient for positioning; positioning is accurate; a concentricity with a stator is high; air gap precision is high; a harmonic wave content is low; vibration is small; and a noise is low and so on.
Description
technical field [0001] The invention relates to the field of motors, in particular to a rotor, and also to a motor and a compressor with the rotor. Background technique [0002] The rotor of the existing rotary compressor adopts a cantilever structure, that is, there is only one-sided bearing, so the air gap needs to be adjusted by means of tooling such as feeler gauges during the rotor installation process. The outer circular surface must be a large range of concentric arcs to concentric arcs in order to be well positioned. If the inner surface of the stator and the outer surface of the rotor are point-to-point, the accuracy of the air gap will be poor. [0003] However, if the inner circular surface of the stator and the outer circular surface of the rotor are a large range of concentric arcs to concentric arcs (that is, there are concentric arcs with a large span angle in the outer arc of the rotor core), it will lead to difficulty in rotor optimization. increase, it is...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H02K1/27
Inventor 王飞陈金涛
Owner GUANGDONG WELLING ELECTRIC MACHINE MFG