Rotor of permanent magnet motor and permanent magnet motor
A permanent magnet motor and rotor technology, applied in the direction of magnetic circuit rotating parts, magnetic circuit shape/style/structure, etc., can solve the problems of inconvenient disassembly and maintenance, complicated installation process, etc., and achieve the effect of convenient installation
Inactive Publication Date: 2013-06-05
XIANGTAN ELECTRIC MFG CORP LTD
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Problems solved by technology
For the permanent magnet embedded rotor, the permanent magnet is placed in the pole punch. When installing the permanent magnet or the magnetic pole, the installation process is very complicated because the permanent magnet has been magnetized; when the permanent magnet fails, disassembly and maintenance very inconvenient
Method used
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[0015] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0016] With reference to the accompanying drawings, the attached Figure 4 It is a three-dimensional schematic diagram of the permanent magnet motor rotor of the present invention, wherein in order to show the magnetic pole pressure plate 4, only part of the end plate 3 is shown in the figure, a permanent magnet motor rotor, which includes a magnetic pole, a rotor bracket 1, and a magnetic end plate 3, each The magnetic pole is composed of two or more magnetic pole units 6, each magnetic pole unit 6 includes a magnetic pole punch 2 and a permanent magnet 7, and the permanent magnet 7 is inserted into the mounting groove of the magnetic pole punch 2 and then magnetized to form a magnetic pole unit 6 , in order to facilitate the installation of the magnetic pole unit 6, the magnetic pole unit 6 is dovetail-shaped, and an axially penetrating dovetail groove matc...
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The invention relates to a rotor of a permanent magnet motor. The rotor comprises magnetic poles, a rotor support and magnetic pole end plates and is characterized in that each magnetic pole is composed of two or more than two magnetic pole units, each magnetic pole unit comprises a magnetic pole punching sheet and a permanent magnet, and the permanent magnet is inserted in an installation groove of the magnetic pole punching sheet to form the magnetic pole unit. A groove is formed at the position of an outer circle of the rotor support, an inner diameter end of the magnetic pole unit is fixed in the groove, two ends of each magnetic pole are respectively provided with one magnetic pole end plate, and axial fixation of each magnetic pole is achieved by tightly pressing the magnetic pole end plates. The segmented magnetic pole units are fixed in the groove of the rotor support, particularly the groove is made into a dovetail groove, and a magnetic pole pressing plate arranged in the dovetail groove is tightly pressed through a slotted head screw from the inner side of the support, so that the rotor is convenient to install, and only parts of magnetic pole units nearby the magnetic pole unit need to be disassembled when a certain magnetic pole unit needs maintaining and repairing. The invention further relates to the permanent magnet motor.
Description
technical field [0001] The invention relates to the field of motors, in particular to a permanent magnet motor rotor and a permanent magnet motor. Background technique [0002] Due to its advantages of low loss and high efficiency, permanent magnet synchronous motors have gradually replaced traditional asynchronous motors and electric excitation synchronous motors in many engineering fields. The rotor structure of permanent magnet synchronous motor has two types: permanent magnet surface mount type and permanent magnet embedded type. Among them, the permanent magnet embedded permanent magnet motor has the advantages of long service life and good anti-demagnetization effect. For the permanent magnet embedded rotor, the permanent magnet is placed in the pole punch. When installing the permanent magnet or the magnetic pole, the installation process is very complicated because the permanent magnet has been magnetized; when the permanent magnet fails, disassembly and maintenance...
Claims
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IPC IPC(8): H02K1/27H02K1/28
Inventor 丁亮罗华利周元晨徐蕊杨小林杨振河
Owner XIANGTAN ELECTRIC MFG CORP LTD