Permanent magnet assisted synchronous reluctance motor and installation method thereof
A technology to assist synchronous and reluctance motors, applied in synchronous motors with stationary armatures and rotating magnets, electromechanical devices, and manufacturing motor generators, etc., can solve the problems of high cost, non-rare earth permanent magnets, and low motor efficiency.
Active Publication Date: 2012-11-07
ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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[0005] The invention provides a permanent magnet assisted synchronous reluctance motor and an installation method of the motor, which overcomes the problems of high cost of the motor using rare earth permanent magnets and low efficiency of non-rare earth permanent magnet motors in the prior art
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[0041] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.
[0042] figure 2 shows a sectional view of the permanent magnet assisted synchronous reluctance motor of the present invention, which includes a rotor 2 and a stator 3 located outside the rotor 2 and having a certain gap g with the rotor 2 . The stator 3 includes a stator core 31 provided with a plurality of slots 32 and a plurality of teeth 33 in the circumferential direction, and a winding (not shown) placed in the slots 32 . Wherein, the rotor 2 is composed of a rotor core 21 provided with multiple sets of magnetic pole units. All the magnetic pole units are arranged in the form of alternating N poles and S poles in the circumferential direction of the rotor. Each magnetic pole unit includes two layers of permanent magnet slots 5 and For the per...
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The invention provides a permanent magnet assisted synchronous reluctance motor and an installation method thereof. The permanent magnet assisted synchronous reluctance motor comprises a rotor and a stator. The rotor comprises a rotor core and a plurality of groups of magnetic pole units are arranged in the rotor core. The stator surrounds the rotor. A gap is kept between the stator and the rotor. The stator comprises a stator core which is provided with a plurality of grooves and teeth arranged in the circumferential direction, and windings which are arranged in the grooves. Each group of magnetic pole unit comprises a plurality of layers of permanent magnet grooves which are arranged in the radial direction, and permanent magnets which are arranged in the permanent magnet grooves. The axial length of the rotor is larger than the axial length of the stator. The permanent magnet assisted synchronous reluctance motor and the installation method thereof mainly have the advantages that since layers of permanent magnet grooves and layers of permanent magnets are arranged, on the basis that permanent magnet linkage is fully used by the motor, the reluctance torque producing capability of the motor is greatly improved and the goal of keeping the efficiency of the motor using ferrite permanent magnets to be high is realized.
Description
technical field [0001] The invention relates to the field of motors, in particular to a permanent magnet assisted synchronous reluctance motor and a method for installing the motor. Background technique [0002] FIG. 1 shows a cross-sectional view of an interior permanent magnet synchronous motor in the prior art, which includes a rotor 2 and a stator 3 located outside the rotor 2 and having a certain gap g with the rotor 2 . Among them, the stator 3 is composed of a stator core 31 provided with a plurality of slots 32 and teeth 33 in the circumferential direction and a winding (not shown) placed in the slots 32; wherein the rotor 2 is provided with multiple sets of magnetic pole units The rotor iron core 21 is composed of the permanent magnet 4 placed in the permanent magnet slot 5 in the iron core. one of them Figure 1a Permanent magnet materials with high magnetic properties such as rare earth permanent magnets are used. Figure 1b A permanent magnet material with weak...
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IPC IPC(8): H02K21/14H02K1/27H02K15/00H02K15/03
Inventor 黄辉胡余生陈东锁曾学英肖勇
Owner ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION