WO2016209058A1

WO2016209058A1 - Induced polarization switching-less dc motor

Info

Publication number: WO2016209058A1
Application number: PCT/KR2016/006855
Authority: WO
Inventors: 이이수
Original assignee: 이이수
Priority date: 2015-06-26
Filing date: 2016-06-27
Publication date: 2016-12-29
Also published as: KR20150105270A; CN108141074A; KR102099409B1

Abstract

The present invention relates to a DC motor which is driven by direct current without current switching and, more particularly, to a switching-less DC motor which enables the kinetic energy thereof to be highly efficient, as the active energy of a stator and the passive energy of a rotator are synthesized.

Description

Inductive Polarization Switching-less DC Motor

The present invention relates to a DC motor driven by a switching-less direct current, and more particularly, the electric energy of the stator and the passive energy of the rotor are synthesized to combine the kinetic energy of the motor. (Kinetic Energy) relates to a switching-less DC motor to be high efficiency.

The global challenges of 21st century physics are to solve the "energy problem" and "climate change problem". The core of this task is the electric vehicle. The key element technologies of electric vehicles, high-speed trains, and combat robots are the traction motors. This motor is a pan-cake type in-wheel motor, requiring high efficiency and constant power. A motor will need to be developed to meet this function.

Robot technology, the next generation convergence technology that will lead the world, aims to realize the "war that does not shed blood" with the appearance of "robots caring for old age" and robot soldiers. One of the three element technologies of robot technology is the servo motor technology. This motor should be a flange type motor with smooth bidirectional control, excellent position control, stepless speed, and constant speed. Innovative motors have to be developed to meet this.

In addition, as an element technology supporting high functionalization and high performance of home appliances, automotive electronics, electronic toys, and medical health equipment, there is a demand for innovation in motor technology.

Spindle motors that rotate at over 60,000 RPM can develop machine tools that do not use coolant. High speed motors need to be developed.

Motors spinning at 100,000 RPM or more will revolutionize the technology of centrifuges, and motors above 300,000 RPM will be able to develop new fibers. Ultrafast motors will have to be developed. In high speed motors, a magnet bearing is essential.

Meanwhile, 75% of the earth is sea. Now we need to find resources under the sea. Subsea development requires an Immersible Motor. In order for the Immersible Robot to be developed, there must be innovation in motor technology.

In addition, in order to realize a Mag-Lev, a groundbreaking linear motor must be developed. New motors need to be developed.

(Prior art document)

(Patent Document 0001) Domestic Registered Patent No. 10-1239713 (2013.03.06. Registered Notification, Switching-less DC Motor)

Today, in the era of Giga-Bit and Nano-Technology, only motor technology is in development.

Conventional AC motors, DC motors, BLDC motors, etc. have a cylindrical structure, and a pan-cake motor required by a traction motor is difficult to manufacture.

In addition, due to the use of alternating current, due to the Eddy Current Loss and the Hysteresis Loss, which increase in proportion to the increase in speed, the function and performance are bad at high speeds, and ultra-high speeds are impossible.

An object of the present invention is to provide a switching-less DC motor that solves the above problems significantly.

In the present invention for achieving the above object in the construction of a switching-less DC motor, the stator is wound around the coil in a radial manner around the non-magnetic circular, flat core to form a magnetic field on both sides of the stator and It is installed at the center of two rotors, and the rotor magnetizes two circular and flat permanent magnets of a size corresponding to the magnetic field of the stator so that the magnetic field of each rotor is opposite to both magnetic fields of the stator. Wherein the same pole (NN or SS) of each rotor is configured to face the magnetic field of the stator, the stator has a plurality of winding grooves (in both sides) to achieve a coreless motor (core-less motor) Winding Ditch) and a coreless motor are formed by winding one layer so that many coils are parallel and adjacent to one winding groove, and the input power stage (PWM Stage) of this motor is about 1,000. It is configured to control PWM (Pulse Width Modulation), and when the stator is energized, the rotor starts and rotates according to "Maxwell's mechanical model", and the rotation direction is determined by "Fleming's left hand law". It is characterized by.

Here, in order to achieve a power motor, the stator forms an induced polarization slit on both magnetic surfaces of a winding core and radially symmetrically installed on both sides of the stator to distribute the windings. Distributed Winding) The magnetic field at both sides of the slot is induced polarization to generate a doubling magnetization force to be magnetic flux concentration.

In addition, the rotor constitutes two rotors by circumferentially stacking silicon steel sheets on one magnetic surface of the rotor in order to achieve a power motor, each magnetic surface is a magnetic force of the double of the stator Magnetic Flux Concentration is achieved by a magnetic force corresponding to (Doubling Megnetiomotive Force).

In addition, the distribution winding is characterized in that composed of independent multi-phase (Phase).

In addition, some of the windings function as a motor, and the remaining windings function as a generator, characterized in that the motor-generator integrated.

The apparatus may further include a magnet bearing configured to provide a circular and flat magnet on the outer surface of the magnetic field of the rotor such that poles such as the outer surface of the rotor face each other, thereby supporting the rotor. It is done.

Induced Polarization Switching-less DC Motor (hereinafter, referred to as "IP SLDC MOTOR") according to the present invention has the following effects.

1. The IP SLDC MOTOR of the present invention has no switching stage and has high stability and low cost.

2. The IP SLDC MOTOR of the present invention is easy to winding, and there is no internal connection, so automatic winding and connection are easy.

3. IP SLDC MOTOR of the present invention is easy to configure the permanent magnet rotor.

4. The IP SLDC MOTOR of the present invention is not restricted in the manufacture of a coreless motor or a power motor.

5. IP SLDC MOTOR of the present invention is easy to install and install as a flange type motor (Flange type Motor).

6. The IP SLDC MOTOR of the present invention is easy to manufacture of the outer rotor type, direct drive type, pan-cake type, and in-wheel motor type.

7. The IP SLDC MOTOR of the present invention is easy to manufacture the Immersible Motor.

8. The IP SLDC MOTOR of the present invention has no eddy current loss or hysteresis loss.

9. The IP SLDC MOTOR of the present invention is free from heat, noise and vibration.

10. IP SLDC MOTOR of the present invention is easy to manufacture a linear motor (Linear Motor).

11. The IP SLDC MOTOR of the present invention is a constant power motor with a constant torque and a linear motor and a high speed rotation.

12. The IP SLDC MOTOR of the present invention achieves an efficiency of about 200% due to the induction polarization of the stator and about 200% by the magnetic flux concentration effect of the rotor, resulting in a total efficiency of about 400% (Over Unity Energy). Motor).

13. The IP SLDC MOTOR of the present invention can automatically charge the battery with a self-powered IP SLDC Motor-Generator, thereby enabling continuous use of the device without external charging.

14. The IP SLDC MOTOR of the present invention is a self-generating IP SLDC Motor-Generator, which is a renewable energy generation device capable of feeding back 100% of electrical energy and continuously using about 300% of electric energy without external power supply. At this time, constant voltage control is essential).

1 is a schematic diagram showing a cross section of a DC motor according to an embodiment of the present invention;

2a and 2b is a plan view and a front cross-sectional view showing a stator according to an embodiment of the present invention,

3A and 3B are a plan sectional view and a front sectional view showing a stator according to another embodiment of the present invention;

Figure 3c is a front sectional view showing a winding slot and induced polarization slit of the stator according to another embodiment of the present invention,

4 is an exemplary view showing a four-phase motor according to an embodiment of the present invention;

5 is a perspective view of a rotor according to an embodiment of the present invention;

6A and 6B are cross-sectional views illustrating a motor to which a magnetic bearing according to another embodiment of the present invention is applied.

The technical problem achieved by the present invention and the practice of the present invention will be apparent from the preferred embodiments described below. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic diagram showing a cross section of a DC motor according to an embodiment of the present invention.

As shown in FIG. 1, the high-efficiency inductive polarization switching-less DC motor 100 (hereinafter, referred to as an “IP SLDC motor”) of the present invention includes a power supply unit 10 for converting AC power into DC power. ), A high efficiency DC motor 100 according to the control of the input buffer unit 20, the frequency velocity (FV) conversion circuit 30, the input buffer unit 20 and the FV conversion circuit 30 for inputting a user control command. It forms a configuration in which the input power supply unit 40 (PWM STAGE) for voltage control is connected. In addition, an encoder 50 for detecting a speed is attached to a shaft 130 of the IP SLDC motor 100 and connected to the FV conversion circuit 30.

The IP SLDC motor 100 of the present invention has a structure in which one stator 110 is disposed between two permanent magnet rotors 120.

Stator (110, STATOR) of the motor is a circular, plate-shaped non-magnetic material (Non Magnetic Disk Core) formed with a hole in the center on both sides radially (Radial to Shaft) distributed winding (Distributed Winding) both sides of the stator It is configured to be located at the center of two rotors by forming a magnetic field in the.

The rotor 120 of the motor rotates two circular disk magnet rotors of a size corresponding to the magnetic field of the stator on both sides, so that the same pole of each magnet is formed on both magnetic fields of the stator. It is comprised so that (N) may oppose.

The input power supply unit 40 (PWM STAGE) of the motor installs and configures a square wave volume of pulse width modulation (PWM) of about 1,000 Hz.

When the motor is energized with DC electricity, the rotor starts and rotates according to the Maxwell's mechanical model (magnetic principle), and the direction of rotation is determined by the Fleming's left-hand law. Constant power).

2A and 2B are a plan view and a front sectional view showing a stator according to an embodiment of the present invention. As can be seen in the figure, the stator 110 according to an embodiment of the present invention, the coil 112 is wound in a radial manner directly to the non-magnetic disk board (111) of circular and flat plates Magnetic windings are formed on both sides by winding the distribution. At this time, radial winding grooves 114 having a predetermined depth are formed on both surfaces of the disc so that the coils are wound, and the coils 112 are wound along the winding grooves 114.

3A and 3B are a plan sectional view and a front sectional view showing a stator according to another embodiment of the present invention, and FIG. 3C is a front sectional view showing a winding slot and induced polarization slit of the stator according to another embodiment of the present invention. The stator according to another embodiment of the present invention is the coil 112 is wound around the nonmagnetic disk 111 through the winding core 113.

That is, as shown in FIGS. 3A and 3B, a plurality of cores 113 are radially coupled to both surfaces of the nonmagnetic disc 111, and the coil 112 is formed along the winding groove 114 of the core 113. The windings are distributed in a radially wound manner to form magnetic fields on both sides.

On the other hand, the winding core 113 formed by stacking the silicon steel sheet forms a rectangular bar shape, for example, may form a rectangular bar shape having a length of 40mm, a height of 15mm, and a width of 10mm. In addition, the winding groove 114 is formed in the upper center portion in the longitudinal direction. As shown in FIGS. 3A and 3B, the core 113 is coupled to the nonmagnetic disc 111, with the winding groove 114 facing outward, and a portion of the lower side of the core 113 inside the nonmagnetic disc 111. Combined to dent. In addition, it is radially coupled to both sides with respect to the circular nonmagnetic disk 111, and forms a constant distance from the neighboring core 113. The coil 112 is wound around the winding groove 114 of the core 113 by a predetermined winding to form a magnetic field surface on both sides of the nonmagnetic disc 111.

In addition, as shown in FIG. 3C, the winding core configures n winding slots in the center, 2n induced polarization slits outside the respective winding slots, and distributes windings to the n winding slots. When the stator is configured and in-put to the stator, both magnetic fields of the Winding Slot are induced polarization, doubling the magnetomotive force to become magnetic flux concentration, and the rotor is started and rotated. The rotation direction is configured to be determined by the Fleming Left Hand Rule.

The stator 110 having the above structure is arranged to be positioned at the center of the two rotors 120 as shown in FIG. 1. When direct current is applied to the coil 112 of the stator 110, the rotors 120 on both sides are started and rotated according to the "Maxwell's mechanical model (magnetic principle)" ("Maxwell's mechanical model ( Magnetic principle) ", two coils in which current flows in the same direction attract each other, two coils in which current flows in opposite directions push each other, and the strength of the force is inversely proportional to the square of the distance. At this time, the rotation direction of the rotor 120 is determined by the "Fleming's left-hand law", the IP SLDC motor 100 of the present invention is a high efficiency constant power according to the "Maxwell's mechanical model (magnetic principle)" Constant power).

4 is an exemplary view showing a four-phase motor according to an embodiment of the present invention. As shown, in the IP SLDC motor 100 of the present invention, one stator 110 is disposed between two permanent magnet rotors 120.

Here, the stator 110 is wound around the circular and flat nonmagnetic plate 111 in a manner of winding the coil 112 in a radial manner to form a magnetic field on both sides, and the rotor 120 of the stator 110 Two circular and flat permanent magnets of a size corresponding to the magnetic field are double-sided magnetized so that the magnetic field of each rotor 120 is opposed to both magnetic fields of the stator 110.

In this case, the same pole of the rotor 120 is configured to face the magnetic field of the stator 110. That is, the N-N poles of the rotor 120 permanent magnets face each other or the S-S poles face each other.

On the other hand, the stator 110 may be wound around the coil 112 is divided into a plurality of areas at equal intervals. As an example, divided windings are divided into four areas, and are connected to +/- power of the input power supply unit (40 in FIG. 1, PWM STAGE) through lead wires to form a four-phase motor. At this time, the divided areas are 2, 3, 4, 5,... It is possible to divide into a plurality of phases such as and n.

5 is a perspective view showing a rotor according to an embodiment of the present invention. The rotor 120 of the present invention is constructed by laminating silicon steel plates 122 in a columnar shape on one magnetic interface of circular and flat permanent magnets 121 corresponding to the stator 110. At this time, the silicon steel plate 122 is wound in a columnar shape with a strip having a width of about 5 mm and stacked on one magnetic surface of the permanent magnet 121. Each magnetic surface of the rotor 210 has magnetic flux corresponding to a magnetic force corresponding to a doubling force of the stator of the stator (Magnetic Flux Concentration).

6A and 6B are cross-sectional views illustrating a motor to which a magnetic bearing according to another embodiment of the present invention is applied. In the structure in which the coil 112 is divided and wound, each coil may be used as an input terminal, some may be used as an input terminal, and the other may be used as an output terminal.

That is, as shown in FIG. 6A, when the coils 112 of all the divided regions are used as input terminals, the stator 110 drives the rotor 120 with strong magnetic force by the winding sum of the coils 112. IP SLDC functions as a motor. In addition, as shown in FIG. 6B, when some are used as input terminals and the other are used as output terminals, the stator 110 functions as a motor to drive the rotor 120 by the power of the input terminals, and at the same time, Since the induction current is generated in the output terminal by the rotation of the electron 120, it functions as a motor-generator.

Meanwhile, in the IP SLDC motor 100 of the present invention, a magnet bearing 160 is provided as a bearing for guiding the rotor 120. That is, as illustrated in FIGS. 6A and 6B, circular / flat magnetic bearings 160 are installed on the outer surface of the magnetic field surface of the rotor 120. In this case, the magnetic bearing 160 is installed such that a pole, such as an outer surface of the rotor 120, faces the rotor 120 so that a repulsive force acts between the rotors 120. Since the magnetic bearing 160 levitations the rotor 120 inside the housing 150 of the IP SLDC motor 100, any frictional force by the housing 150 or the ball bearing (140 in FIG. 1) It doesn't happen, so it can be rotated very fast.

Although the embodiments of the present invention have been described with reference to the present invention, those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom.

Explanation of the sign

100: IP SLDC Motor

110: stator 111: nonmagnetic disc

112 coil 113 silicon steel winding core

114: winding groove

120: rotor

121: permanent magnet 122: silicon steel sheet

Claims

In constructing a switching-less DC motor,

The stator is wound around the coil by radially winding the coil on a round or flat core of a nonmagnetic material to form magnetic fields on both sides of the stator, and is installed in the center of two rotors.

The rotor is formed by double magnetizing two circular and flat permanent magnets of a size corresponding to the magnetic field of the stator so that the magnetic field of each rotor is opposite to the magnetic field on both sides of the stator, but the same pole of each rotor ( NN or SS) opposite the magnetic field of the stator,

In order to achieve a coreless motor, the stator forms a plurality of winding grooves on both sides of the magnetic interface, and distributes the windings in one layer so that a plurality of coils are parallel and adjacent to one winding groove. Make up the coreless motor,

The input power stage (PWM Stage) of this motor is configured to control pulse width modulation (PWM) of about 1,000 Hz,

Induction polarization switching-less DC motor, characterized in that the rotor is started and rotated in accordance with the "Maxwell's mechanical model" and the direction of rotation is determined by the "Fleming's left hand law".
The method of claim 1, wherein the stator,

In order to achieve a power motor, an induced polarization slit is formed on both magnetic fields of a winding core and radially symmetrically installed on both sides of the stator to distribute the windings. (Slot) Induction polarization switching-less DC motor, characterized in that the magnetic surface on both sides is induced polarization (Doubling Megnetiomotive Force) to generate a magnetic flux concentration (Magnetic Flux Concentration).
The method of claim 1, wherein the rotor,

In order to achieve a power motor, a silicon steel sheet is circumferentially stacked on one magnetic surface of the rotor to form two rotors, each of which has a doubling magnetic force of the stator. Inductive polarization switching-less DC motor, characterized in that the magnetic flux (Magnetic Flux Concentration) is achieved by the corresponding magnetic force (Magnetic Force).
The method according to claim 1 or 2,

Inductive polarization switching-less DC motor, characterized in that the distribution winding is composed of independent multi-phase (Independent Multi-Phase).
The method of claim 4, wherein

Induction-polarized switching-less DC motor, characterized in that some of the windings function as a motor (Motor), the remaining windings as a generator (Motor-Generator) integral.
The method according to claim 1 or 3,

It characterized in that it further comprises a magnet bearing for mounting the rotor (Levitation) by installing a circular, flat-shaped magnet on the outer surface of the rotor magnetic field facing the same pole as the outer surface of the rotor Inductive polarization switching-less DC motors.