CN104953775A

CN104953775A - Permanent magnet DC magnetic reversing motor

Info

Publication number: CN104953775A
Application number: CN201510445646.5A
Authority: CN
Inventors: 姜宝华
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-07-27
Filing date: 2015-07-27
Publication date: 2015-09-30

Abstract

The invention relates to a permanent magnet DC motor in the field of mechanical and electrical energy conversion and a magnetic reversing technology of the permanent magnet DC motor. A permanent magnet DC magnetic reversing motor mainly structurally comprises a stator and a rotor; the stator comprises a housing, a protective hood, stator multi-pole permanent magnets, a coil framework, armature windings, a bearing and the like; the stator is divided into two parts of which the armature windings are the same in direction and the stator multi-pole permanent magnets are opposite in magnet poles; the rotor comprises a rotor multi-pole permanent magnet, a short-circuit ring, a bearing body and a shaft. A resultant constant ampere force is generated by the double-stator armature windings in 360 degrees to form the permanent magnet DC magnetic reversing motor. The permanent magnet DC magnetic reversing motor is continuous and stable in operation, and high in cost performance. A new branch of motor reversing is created; a change of the motor industry is caused; a conventional permanent magnet DC brush motor or a conventional permanent magnet brushless motor is replaced. The magnetic reversing motor is a permanent magnet DC motor with high market potential and competitiveness.

Description

DC magnetic reversing motor

The permanent magnet DC motor that what technical field the present invention relates to is in energy converting between mechanical field and magnetic reverse flow technique thereof. since faraday's invention First motor in 1821 has been passed by nearly 200 years so far. along with the development of hyundai electronics control technology and electronic device, for overcoming defect and the restriction of brush motor commutation, engineers has been carried out unremitting effort .20 and have been proposed the patent .1962 having applied for transistor line commutation first with the concept .1955 American D.Harrison etc. that power electronic device replaces mechanical commutator the thirties in century, after Hall element is applied to Angle Position detection .20 century 70, develop into thyristor commutatorless machine. so-called commutatorless machine, brushless electric machine all refers to electronic commutation motor. accidentally also there is exception, as Chinese patent, Birotary single-pole permanent-magnet brushless direct-current motor (CN201110375459), but military strategist in ancient China on the party criminal electromagnetism avoids greatly, can not form for same polarity magnetic field even if air-gap field is also armature operating fields. the program is feasible, but its magnetic circuit is long, and leakage field is large, complex structure, is also difficult to promote. and the essence of this patent does not depart from electric current commutation thinking. and existing web material retrieval shows, magneto adopts magnetic reverse flow technique to there is no precedent.

Background technology permanent magnet DC motor is that medium realizes energy converting between mechanical with magnetic field of permanent magnet. under the condition of magnetic field of permanent magnet geo-stationary, realize the continuous operation of permanent magnet DC motor, conventional method is armature supply commutation. and the classical scheme of permanent magnet DC motor uses commutator brush commutation. and the advantage of classical scheme is; Simple in structure and low in cost, shortcoming is; Commutator brush mechanical wear, life-span is short, produce electric spark and noise large. permanent magnet DC motor modern project is with electronics switch control rule direct current reversing, so as to eliminating the shortcoming of classical scheme. but the program controls complicated with high costs, is still difficult to alternative large batch of permanent-magnet DC brush motor at present. the development of high-power super high power electronic switch also will be relied on again to high-power super high power non-brush permanent-magnet DC motor. problem is; Whether there is the third permanent magnet DC motor scheme; Both retain the advantage of classical permanent-magnet DC brush motor scheme, retain again modern permanent magnet DC brushless motor advantage, again not by high-power super high power electronic switch development restriction, and the permanent magnet DC motor commutation programme that cost performance is high?

Summary of the invention one object of the present invention is that the commutation of proposition magnetic replaces the concept of permanent magnet DC motor electric current commutation and implemented. the present invention explicitly points out; Both the advantage that classical permanent magnet DC motor has brush scheme had been retained; Simple in structure and low in cost, retains again modern permanent magnet DC brushless motor scheme advantage; Without wearing and tearing, without electric spark and noise little, not restrict by the development of high-power super high power electronic switch again, and the third permanent magnet DC motor that cost performance is high; DC magnetic reversing motor exists. armature winding direct current does not commutate, employing magnetic commutates, Bu Shi old name for the Arabian countries in the Middle East pool at night. the present invention is with Ampere's law, newton third law of motion, law of conservation of energy and conservation law principle of stacking are foundation, adopt bimorph transducer, single rotor, multipole (N couple, 2N pole) magnet structure; The magnetic field of permanent magnet that single stator armature is experienced does the cyclic variation of 0 ~ Bmax with rotor, and bimorph transducer armature synthesizes the Ampere force producing Constant Current Constant magnetic field in 360 degree. DC magnetic reversing motor of the present invention; Without iron loss, run continuously, steadily. DC magnetic reversing motor statoric multipolar permanent magnet of the present invention and rotor multipole permanent magnet allow the existence between zero field regions, monoblock magnet forms through once magnetizing, and also greatly reduces cost of manufacture compared with modern brushless motor. and the present invention is suitable for four kinds of motors; DC magnetic commutation ripple current motor, permanent-magnet magnetic commutation ripple generator, DC magnetic reversing motor, DC magnetic commutation generator. the present invention has started a Ge Xin branch of motor commutation; Magnetic reversing motor. the present invention maybe will cause the change of electromechanics trade, change the developing direction of existing electromechanics trade, and further pushing motor subject constantly advances.

Accompanying drawing explanation

Fig. 1 is DC magnetic reversing motor (radial field) symmetrical centre sectional structure schematic diagram of the present invention

Fig. 2 is the A direction view of Fig. 1

Fig. 3 is the B direction view of Fig. 1

Fig. 4 is DC magnetic reversing motor (axial field) symmetrical centre sectional structure schematic diagram of the present invention

Fig. 5 is the A direction view of Fig. 4

Fig. 6 is the B direction view of Fig. 4

Embodiment

Composition

As Fig. 1 Fig. 4, DC magnetic reversing motor of the present invention is mainly divided into two parts; Stators and rotators. stator is by housing 1; protective cover 13; statoric multipolar permanent magnet 2; 3; shading ring 11; 12; coil rack 4 and armature winding 5; composition such as bearing 10 grade. it is identical that stator is divided into again armature winding direction, two parts that magnetic pole of the stator is contrary, claims double-stator structure. and armature winding is used for induced electromotive force; pass through direct current; producing Ampere force or electromagnetic torque. rotor is by rotating shaft 9, and rotor multipole permanent magnet 6, short-circuited conducting sleeve 7 and coupling part 8 thereof form. and the space between statoric multipolar permanent magnet and rotor multipole permanent magnet is the air-gap field of armature winding.

The statoric multipolar permanent magnet 2 or 3 of N couple, 2N pole (N is positive integer) and rotor multipole permanent magnet 6 form the motor gas-gap magnetic field gas of claim 1. and motor gas-gap field strength rotates in 0 ~ B with rotor multipole permanent magnet _maxcyclic variation.

Two statoric multipolar permanent magnet 2 and 3 location arrangements differ a magnetic pole, to realize the function of claim 2; When eliminating rotor turns, the mutual resistance of single stator and single rotor multipole permanent magnet magnetic interpolar.

Two statoric multipolar permanent magnets 2 and 3 and rotor multipole permanent magnet 6 meet claim 3, are the circular ring multi-pole axial magnetic field magnet once magnetized, and also can be the cylinder multipole radial magnetic field magnets once magnetized.

Bimorph transducer magnet list stator armature winding produces pulsating torque, forms the function of claim 4, becomes DC magnetic commutation ripple current motor.

Bimorph transducer magnet list stator armature winding produces pulsating torque, forms the function of claim 5, becomes permanent-magnet magnetic commutation ripple generator.

Bimorph transducer armature winding produces synthesis constant torque, forms the function of claim 6, becomes DC magnetic reversing motor.

Bimorph transducer armature winding produces the permanent steady electromotive force of synthesis, forms the function of claim 7, becomes DC magnetic commutation generator.

The operation principle of DC magnetic reversing motor

As everyone knows, electromagnetic field is that conservation law is applicable to principle of stacking. when current carrying conductor is arranged in magnetic field of permanent magnet, if current carrying conductor is subject to an Ampere force dF=Idl x B effect. current carrying conductor is fixed, hinder the friction of motion resistance of the permanent magnet producing magnetic field of permanent magnet enough little, according to Newton's third law, action-reaction law, dF ₁=-dF ₂, the permanent magnet producing magnetic field of permanent magnet is subject to an Ampere force effect contrary with Ampere force equal and opposite in direction direction suffered by current carrying conductor. further, as figure, if current carrying conductor is fixed together with producing the stator permanent magnet of magnetic field of permanent magnet, enough hour of the frictional resistance that the rotor permanent magnet producing magnetic field of permanent magnet moves, according to Newton's third law, the rotor permanent magnet producing magnetic field of permanent magnet rotates by Ampere force effect. along with the motion of rotor permanent magnet, the magnetic line of force of the magnetic field of permanent magnet that current carrying conductor is experienced tails off gradually, Ampere force diminishes thereupon, the stressed of rotor permanent magnet also changes thereupon. at this simultaneously, rotor magnetic steel is subject to the push-and-pull action of adjacent same polarity magnetic steel of stator and heteropolarity magnetic steel of stator and hinders it to move, under electric current invariant state, rotor is at stator, rotor magnetic steel equilbrium position swings. for making rotor turns, this push-and-pull resistance of stator rotor magnet steel must be overcome. according to law of conservation of energy, during motor assembling, we introduce the second stator. the second stator and the first statoric multipolar magnet stagger a magnetic pole as Fig. 2 Fig. 3 and Fig. 5 Fig. 6. the mutual push-and-pull action of the second stator and rotor magnetic pole and the push-and-pull action of the first stator and rotor on the contrary, two magnetic steel of stator of a rotor magnetic steel relative misalignment magnetic pole are cancelled out each other at one week internal resistance and repulsion. so far, Ampere force becomes the power resources promoting DC magnetic reversing motor continuous and stable and run.

DC magnetic reversing motor cost performance of the present invention is high, both be applicable to replace current various middle-size and small-size permanent-magnet DC brush, brushless motor, high-power ultrahigh-power DC motor, high speed DC electric motor, being applicable to again DC generator or ripple generator, is a permanent magnet DC motor having market potential and competitiveness.

Claims

1. a DC magnetic reversing motor, is characterized in that adopting statoric multipolar permanent magnet 2 or 3 and rotor multipole permanent magnet 6 to form motor gas-gap magnetic field. and air-gap field field intensity rotates in 0 ~ B with rotor multipole permanent magnet _maxcyclic variation.

2. motor according to claim 1, being further characterized in that the permanent magnet forming motor gas-gap magnetic field adopts bimorph transducer single rotor structure. two statoric multipolar permanent magnet 2 and 3 location arrangements differ a magnetic pole, during to eliminate rotor turns, the mutual resistance of single stator and single rotor multipole permanent magnet magnetic interpolar.

3. according to the magnet structure air-gap field that claim 1 and claim 2 are formed, being further characterized in that its air-gap field can be the circular ring multi-pole permanent magnet axial magnetic field of once magnetizing, also can be the cylinder multipole permanent magnet radial magnetic field once magnetized.

4. according to the motor that claim 1 and claim 2 are formed, be further characterized in that single stator armature winding produces pulsating torque, become DC magnetic commutation ripple current motor.

5. according to the motor that claim 1 and claim 2 are formed, be further characterized in that single stator armature winding produces pulsating electromotive force, become permanent-magnet magnetic commutation ripple generator.

6., according to the motor that claim 1 and claim 2 are formed, be further characterized in that bimorph transducer armature winding produces synthesis constant torque, become DC magnetic reversing motor.

7., according to the motor that claim 1 and claim 2 are formed, be further characterized in that bimorph transducer armature winding produces the permanent steady electromotive force of synthesis, become DC magnetic commutation generator.