CN2240802Y - Rare-earth permanent magnet high-effect synchronous motor - Google Patents

Abstract

The utility model provides a rare-earth permanent magnet high-effect synchronous motor which belongs to the class of motors for electromechanical products and takes the motor composed of a base, a right and a left end covers, a stator fixed to the inner wall of the base, a winding wound on the stator, a rotating shaft, a rotor supported and fixed on the rotating shaft, a fan, a fan cover, a suspension ring and a wire box. Four star-shaped holes are distributed in the circumferential direction at the yoke part of each silicon steel sheet of the rotor, neodymium iron boron silica magnet steel is inserted into the holes, and an interval is arranged between two radial blocks of magnetic steel. The utility model has the characteristics of high energy conversion rate, large magnetic energy storage amount and remnant magnetic density and stable magnetic performance.

Description

Rare earth permanent magnet high efficiency synchronous motor

The utility model belongs to the electronic product motor type.

Existing motor by support, left and right sides end cap, be fixed on stator on the inboard wall of base, on the stator winding, rotating shaft and supporting, be fixed on that rotor, fan and fan guard, suspension ring and line box in the rotating shaft form.This motor is to be that media carries out the calutron changed between electric energy and the mechanical energy with magnetic field, and magnetic field can be produced by electric current, also can produce by permanent magnet, the former need constantly provide energy to flow to keep electric current, the latter then need be magnetized, the problem of this motor is that energy conversion rate is lower, and magnetic energy product amount and residual magnetic flux density are less, so magnetic property is stable inadequately.

The purpose of this utility model is: provide that a kind of energy conversion rate is higher, magnetic energy product amount and residual magnetic flux density is bigger, magnetic property is stable rare earth permanent magnet high efficiency synchronous motor.

Technical measures of the present utility model are: based on by support, left and right sides end cap, be fixed on stator on the inboard wall of base, on the stator winding, rotating shaft and supporting, be fixed on the motor that rotor, fan and fan guard, suspension ring and line box in the rotating shaft are formed; The yoke portion of each sheet silicon steel sheet of rotor circumferentially be evenly equipped with four "

" hole of shape, be fitted with neodymium iron boron tripoli magnet steel in the hole, wherein two blocks of magnet steel radially have one at interval in the centre.

Motor of the present utility model and since the yoke portion of each sheet silicon steel sheet of rotor circumferentially be evenly equipped with four "

" the shape hole, be fitted with in the hole radially and tangential neodymium iron boron tripoli magnet steel, so the energy conversion rate height is arranged, the good effect that magnetic energy product amount and residual magnetic flux density are big, magnetic property is stable.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is an end view;

Fig. 3 is the sectional schematic diagram of rotor.

Drawing explanation and embodiment are as follows: 6 is supports, the 10th among the figure, and left and right sides end cap, the 3rd is fixed on the stator, the 2nd on the inboard wall of base, the winding, the 1st on the stator, and rotating shaft and supporting, the 7th are fixed on the rotor, the 11st in the rotating shaft, fan, the 12nd, fan guard, the 5th, suspension hook, the 4th, terminal box.The utility model is based on above-mentioned existing motor, the yoke portion 16 of each sheet silicon steel sheet of rotor 7 circumferentially be evenly equipped with four "

" hole of shape, be fitted with neodymium iron boron tripoli magnet steel 8 in the hole.Magnet steel 8 is made up of two radial magnet steels 14 and two tangential magnet-steels 15, and two radial magnet steels 14 have an interval A in the centre, and A gets 3 millimeters (see figure 3)s of being advisable.Each sheet silicon steel sheet of rotor 7 makes it to connect as one by cast aluminium sliver 13; This motor has energy conversion rate height, magnetic energy product amount and remanence density is big, magnetic property is stable characteristics.For make magnet steel stable in the hole, fill seam, 9 shutoff of end face usefulness resin bed with resin when the plug-in mounting magnet steel.

Claims (1)

1, a kind of rare earth permanent magnet high efficiency synchronous motor, by support, left and right sides end cap, be fixed on stator on the inboard wall of base, on the stator winding, rotating shaft and supporting, be fixed on that motor that rotor, fan and fan guard, suspension ring and line box in the rotating shaft form forms; It is characterized in that:

The yoke portion of each sheet silicon steel sheet of rotor circumferentially be evenly equipped with four "

" hole of shape, be fitted with neodymium iron boron tripoli magnet steel in the hole, wherein two blocks of magnet steel radially have one at interval in the centre.

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