CN203014624U

CN203014624U - Permanent magnet motor

Info

Publication number: CN203014624U
Application number: CN 201320008365
Authority: CN
Inventors: 王九龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-01-09
Filing date: 2013-01-09
Publication date: 2013-06-19
Anticipated expiration: 2023-01-09

Abstract

The utility model provides a permanent magnet motor, comprising a motor casing, an end cap, a motor shaft, a stator and a rotor. According to the stator, the inner and outer peripheral surfaces of a hollow circular guiding magnetic core are respectively provided with a plurality of salient poles, a stator coil is winding on the guiding magnetic core, and the some salient poles generate magnetism when a current flows through the stator coil. The rotor comprises an inner magnet, an outer magnet and a rotor support. According to the rotor support, one side of a disc is provided with magnetic conductive concentric circle-different inner ring cylinder and outer ring cylinder, the outer peripheral surface of the inner ring cylinder is provided with magnetized multipolar inner magnets at an equal distance, the inner peripheral surface of the outer ring cylinder is provided with outer magnets, the magnetic poles of the inner magnets are corresponding to the magnetic poles of the outer magnets radially, and the magnetic polarity of the corresponding inner magnet and the outer magnet is the same. The utility model provides the permanent magnet motor, the prior single layer stator and rotor structure is replaced by a double layer stator and rotor structure, the work area of stators and rotors is increased with the same space (or volume), thereby the rotation moment is increased, a starting capability and the output power are increased, the motor efficiency is raised, and the start current is minimized.

Description

A kind of magneto

Technical field

The utility model belongs to machine field, relates to a kind of magneto.

Background technology

Existing various motor as induction alternating current (AC) motor, has simple in structure, reliable operation, but difficulty in starting is arranged, starting current is large, power consumption is large, efficient is low, speed governing is difficult.Existing have brush and brushless DC motor to comprise permanent magnet direct current motor, though have easilier than the former high efficiency, speed governing, has that caloric value is high, cost is high, failure rate is high, maintenance difficult, magnetic energy utilization rate be low.

Summary of the invention

The purpose of this utility model is to provide a kind of magneto, compare with existing motor, it can take full advantage of permanent magnetic acting, has that cost is low, lightweight, efficient is high, power consumption is little, torque is large, reliable operation, can realize electrodeless variable-speed, can frequently change rotating.

For achieving the above object, the technical solution adopted in the utility model is;

A kind of magneto comprises; Front end housing, rear end cap, bearing, motor casing, motor shaft, stator, rotor, in motor casing both sides, front end housing and rear end cap are housed, the two end cap center is provided with bearing, and motor shaft two ends are connected with end cap by bearing, rotor one end and motor shaft are fastenedly connected, and stator one end is connected with rear end cap is concentric; Described stator has, be provided with the equidistant interior salient pole of even number on hollow circular magnetic conduction in-core side face, the radially corresponding magnetic conduction core of salient pole outer peripheral face is provided with outer salient pole in each simultaneously, and this magnetic conduction core can form with silicon steel sheet stack compacting, and also available soft magnetic ferrite is made; Be tied with stator coil on the magnetic conduction core, this stator coil all-pass make when crossing direct current on same side face adjacent two salient poles always one produce one of magnetic and do not produce magnetic; Rotor comprises, inner magnet, outer magnet, rotor field spider, this rotor field spider is for arranging concentric different round endocyclic tube and the outer shroud cylinders of magnetic conduction in disk one side, outer peripheral face at endocyclic tube is provided with the equidistant multipole inner magnet that is magnetized, be provided with outer magnet with the identical number of poles of inner magnet at outer shroud cylinder inner peripheral surface, the inner magnet magnetic pole is relative with the magnetic pole radial of outer magnet, and magnetic polarity is identical, is inserted in said stator between inner magnet and outer magnet and the space is all arranged; Position corresponding at rear end cap and outer magnet is provided with Hall element, for detection of the outer magnet position of magnetic pole, according to the output signal of Hall element, changes the sense of current in stator coil, changes the interaction of stator and rotor, thereby makes motor rotation.

Beneficial effect:

A kind of magneto that 1 the utility model provides; Due to original single-layer stator, rotor structure are changed into double-deck stator, rotor structure, in identical space (volume), increased the work area of stator, rotor, thereby increased magnetic flux, increased turning moment, increase startup ability and power output, improved electric efficiency, reduced starting current.

A kind of magneto that 2 the utility model provide; Owing to adopting electronic component to control motor rotation, can be easy to realize the infinitely variable speeds of motor, also can frequently change rotating.

Description of drawings

Fig. 1 is a kind of magneto generalized section of the utility model;

Fig. 2 is a kind of permanent magnet machine rotor one end face of the utility model and magnet thereof the mode schematic diagram that magnetizes;

Fig. 3 is a kind of permanent magnet motor stator end view of the utility model;

Fig. 4 is a kind of permanent magnet motor stator cross-sectional view of the utility model.

Have in figure: 1 motor shaft, 2 front end housings, 3 rotor field spiders, 4 outer magnets, 5 stator coils, 6 magnetic conduction cores, 7 motor casings, 8 rear end caps, 9 bolts, 10 bearings, 11 inner magnets, 12 Hall elements, 13 rotors, 14 stators, 3a outer shroud cylinder, 3b endocyclic tube, the outer salient pole of 6a, salient pole in 6b, 6c screwed hole.

Embodiment

Below in conjunction with accompanying drawing, the utility model is described further.

To shown in accompanying drawing 4, a kind of magneto comprises referring to accompanying drawing 1; 2 front end housings, 8 rear end caps, 10 bearings, 7 motor casings, 1 motor shaft, 14 stators, 13 rotors, in motor casing 7 both sides, front end housing 2 and rear end cap 8 are housed, the two end cap center is provided with bearing 10, motor shaft 1 two ends are connected with end cap by bearing 10, rotor 13 1 ends and motor shaft 1 are fastenedly connected, stator 14 1 ends are connected with rear end cap 8 is concentric, coordinate it fastening with bolt 9 with screwed hole 6c; Described stator 14 has, be provided with the equidistant interior salient pole 6b of even number on hollow circular magnetic conduction core 6 inner peripheral surfaces, radially corresponding magnetic conduction core 6 outer peripheral faces of salient pole 6b are provided with outer salient pole 6a in each simultaneously, be tied with stator coil 5 on magnetic conduction core 6, when these stator coil 5 all-pass are crossed direct current, make same side face adjacent two interior salient pole 6b or outer salient pole 6a, one produces one of magnetic and does not produce magnetic; Rotor 13 comprises, inner magnet 11, outer magnet 4, rotor field spider 3, this rotor field spider 3 is for arranging concentric different round endocyclic tube 3b and the outer shroud cylinder 3a of magnetic conduction in disk one side, outer peripheral face at endocyclic tube 3b is provided with the equidistant multipole inner magnet 11 that is magnetized, be provided with outer magnet 4 with inner magnet 11 identical numbers of poles at outer shroud cylinder 3a inner peripheral surface, inner magnet 11 magnetic poles are relative with the magnetic pole radial of outer magnet 4, and magnetic polarity is identical, be inserted in said stator 14 between inner magnet 11 and outer magnet 4 and the space is all arranged; Position at rear end cap 8 correspondences and outer magnet 4 is provided with Hall element 12, for detection of outer magnet 4 position of magnetic poles, according to the output signal of Hall element 12, change the sense of current in stator coil 5, change the interaction of stator 14 and rotor 13, thereby make motor rotation.

Claims

1. magneto, this motor comprises; Front end housing, rear end cap, bearing, motor casing, motor shaft, stator, rotor, in motor casing both sides, front end housing and rear end cap are housed, the two end cap center is provided with bearing, and motor shaft two ends are connected with end cap by bearing, rotor one end and motor shaft are fastenedly connected, and stator one end is connected with rear end cap is concentric;

It is characterized in that, described stator has, be provided with the equidistant interior salient pole of even number on hollow circular magnetic conduction in-core side face, the radially corresponding magnetic conduction core of salient pole outer peripheral face is provided with outer salient pole in each simultaneously, be tied with stator coil on the magnetic conduction core, this stator coil when all-pass is crossed direct current, make on same side face adjacent two salient poles always one produce one of magnetic and do not produce magnetic; Rotor comprises, inner magnet, outer magnet, rotor field spider, this rotor field spider is for arranging concentric different round endocyclic tube and the outer shroud cylinders of magnetic conduction in disk one side, outer peripheral face at endocyclic tube is provided with the equidistant multipole inner magnet that is magnetized, be provided with outer magnet with the identical number of poles of inner magnet at outer shroud cylinder inner peripheral surface, the inner magnet magnetic pole is relative with the magnetic pole radial of outer magnet, and magnetic polarity is identical, is inserted in said stator between inner magnet and outer magnet and the space is all arranged.

2. a kind of magneto according to claim 1, is characterized in that, the magnetic conduction core that described stator has is that soft magnetic material is made.