CN101969261B - High-power density permanent magnet motor - Google Patents
High-power density permanent magnet motor Download PDFInfo
- Publication number
- CN101969261B CN101969261B CN2010105157275A CN201010515727A CN101969261B CN 101969261 B CN101969261 B CN 101969261B CN 2010105157275 A CN2010105157275 A CN 2010105157275A CN 201010515727 A CN201010515727 A CN 201010515727A CN 101969261 B CN101969261 B CN 101969261B
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- magnet
- piece
- gathering
- auxiliary
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention relates to a high-power density permanent magnet motor belonging to the field of motors. The invention solves the problems of low efficiency and thrust density, large thrust fluctuation and high vibration and noises of the traditional double-edge ironless straight line permanent magnet synchronous motor, which are caused by low air gap magnetic density and poor sine degree of air gap magnetic density wave forms. An air gap is positioned between a primary pole and a secondary pole of a straight line motor; main permanent magnets and isolated magnets are sequentially arranged on the inner wall of a yoke plate at intervals; the inner sides of the main permanent magnets are provided with assembling magnets which have same widths along a motion direction; the inner sides of the isolated magnets are provided with auxiliary permanent magnets which have same widths along the motion direction; the outer side surfaces of m auxiliary permanent magnets and m assembling magnets are positioned on a same plane; the main permanent magnets are parallelly magnetized in magnetizing directions perpendicular to the motion directions of active cells, and every two adjacent main permanent magnets are in reverse magnetizing directions; the auxiliary permanent magnets are parallelly magnetized in the magnetizing directions parallel to the motion directions of the active cells, and every two adjacent auxiliary permanent magnets are in reverse magnetizing directions.
Description
Technical field
The present invention relates to high power density permanent magnet motor, belong to machine field.
Background technology
Shown in Figure 6 is the structural representation of traditional bilateral no core construction linear permanent magnet synchronous motor.The secondary of this motor is made up of yoke plate and plate shaped permanent magnet; Permanent magnet edge and direction of motion vertical direction parallel magnetization; Permanent magnet is fixed on secondary yoke plate inboard along direction of motion N, alternate being arranged in order of S; The magnetizing direction of secondary bilateral corresponding permanent magnet is identical, and is elementary between two secondary plates.The normal component of the permanent magnet generation magnetic line of force vertically passes elementary, and the elementary winding of energising and secondary permanent magnet magnetic field interactions produce electromagnetic force, promote the mover moving linearly.
But there is following shortcoming in these linear electric motors: air gap flux density is low, and the sinusoidal degree of air gap flux density waveform is poor, so efficiency of motor and pushing force density is low, force oscillation is big, and the vibration of motor and noise are high.Simultaneously, secondary permanent magnet consumption is big, and secondary weight and motor cost are high.
Summary of the invention
The present invention seeks in order to solve traditional bilateral no core construction linear permanent magnet synchronous motor air gap flux density low; The sinusoidal degree of air gap flux density waveform is poor; Therefore efficiency of motor and pushing force density is low, force oscillation is big; Therefore the problem that the vibration of motor and noise are high, the invention provides a kind of high power density permanent magnet motor.
The invention provides the high power density permanent magnet motor of five kinds of structures, first kind of structure is the plate shaped linear permanent-magnet motor of single-side structural:
It comprises primary and secondary; Air gap is arranged between the primary and secondary; The secondary yoke plate, m piece of comprising is at a distance from magnet, m piece auxiliary permanent magnet, m piece master's permanent magnet and m piece gathering magnet, and yoke plate is plate shaped, yoke plate be arranged at intervals with main permanent magnet successively on the elementary direction inwall and at a distance from magnet; The inboard of main permanent magnet is provided with gathering magnet, and gathering magnet is identical along direction of motion width with main permanent magnet; Inboard at a distance from magnet is provided with auxiliary permanent magnet, and is identical along direction of motion width with auxiliary permanent magnet at a distance from magnet; The outer surface of auxiliary permanent magnet of m piece and m piece gathering magnet is in same plane, and main permanent magnet parallel magnetization, magnetizing direction are perpendicular to the mover direction of motion, and every adjacent two main permanent magnet magnetizing directions are opposite; Auxiliary permanent magnet parallel magnetization, magnetizing direction is parallel to the mover direction of motion, and every adjacent two auxiliary permanent magnet magnetizing directions are opposite.
Second kind of structure is the plate shaped linear permanent-magnet motor of bilateral structure:
It comprises elementary and two secondary; Elementary and each air gap is all arranged between secondary; Each secondary yoke plate, m piece of comprising is at a distance from magnet, m piece auxiliary permanent magnet, m piece master's permanent magnet and m piece gathering magnet, and yoke plate is plate shaped, on the madial wall of yoke plate, is arranged at intervals with main permanent magnet and separated magnet successively; The inboard of main permanent magnet is provided with gathering magnet, and gathering magnet is identical along direction of motion width with main permanent magnet; Inboard at a distance from magnet is provided with auxiliary permanent magnet, and is identical along direction of motion width with auxiliary permanent magnet at a distance from magnet; The outer surface of auxiliary permanent magnet of m piece and m piece gathering magnet is in same plane, and main permanent magnet parallel magnetization, magnetizing direction are perpendicular to the mover direction of motion, and every adjacent two main permanent magnet magnetizing directions are opposite; Auxiliary permanent magnet parallel magnetization, magnetizing direction is parallel to the mover direction of motion, and every adjacent two auxiliary permanent magnet magnetizing directions are opposite; The magnetizing direction of the main permanent magnet of two secondary same positions is identical, and the auxiliary permanent magnet magnetizing direction of two secondary same positions is opposite.
The third structure is the cylindrical permanent-magnet motor of outer-rotor structure:
It comprises stator and rotor; Rotor is positioned at the stator outside, between stator and the rotor air gap is arranged, and rotor comprises that yoke tube, m piece are at a distance from magnet, m piece auxiliary permanent magnet, m piece master's permanent magnet and m piece gathering magnet; The yoke tube is a cylindrical shape; Internal circular surfaces at the yoke tube is arranged at intervals with main permanent magnet and separated magnet successively, and the inboard of main permanent magnet is provided with gathering magnet, and along the circumferential direction angle is identical with main permanent magnet for gathering magnet; Inboard at a distance from magnet is provided with auxiliary permanent magnet, and along the circumferential direction width is identical with auxiliary permanent magnet at a distance from magnet; The inner surface of auxiliary permanent magnet of m piece and m piece gathering magnet is on the same circumference, and main permanent magnet radial magnetizing or radial parallel magnetize, and every adjacent two main permanent magnet magnetizing directions are opposite; Auxiliary permanent magnet cutting orientation magnetizing, every adjacent two auxiliary permanent magnet magnetizing directions are opposite.
The 4th kind of structure is the cylindrical permanent-magnet motor of inner rotor core:
It comprises stator and rotor; Rotor is positioned at stator interior, between stator and the rotor air gap is arranged, and rotor comprises that yoke tube, m piece are at a distance from magnet, m piece auxiliary permanent magnet, m piece master's permanent magnet and m piece gathering magnet; The yoke tube is a cylindrical shape; Outer round surface at the yoke tube is arranged at intervals with main permanent magnet and separated magnet successively, the arranged outside gathering magnet of main permanent magnet, and along the circumferential direction angle is identical with main permanent magnet for gathering magnet; Arranged outside at a distance from magnet is assisted permanent magnet, and along the circumferential direction width is identical with auxiliary permanent magnet at a distance from magnet; The outer surface of auxiliary permanent magnet of m piece and m piece gathering magnet is on same circumference, and main permanent magnet radial magnetizing or radial parallel magnetize, and every adjacent two main permanent magnet magnetizing directions are opposite; Auxiliary permanent magnet cutting orientation magnetizing, every adjacent two auxiliary permanent magnet magnetizing directions are opposite.
The 5th kind of structure is that inner rotor core and rotor outer surface are corrugated cylindrical permanent-magnet motor:
It comprises stator and rotor; Rotor is positioned at stator interior, between stator and the rotor air gap is arranged, and rotor comprises that yoke tube, m piece are at a distance from magnet, m piece auxiliary permanent magnet, m piece master's permanent magnet and m piece gathering magnet; The yoke tube is a cylindrical shape; Outer round surface at the yoke tube is arranged at intervals with main permanent magnet and separated magnet successively, the arranged outside gathering magnet of main permanent magnet, and along the circumferential direction angle is identical with main permanent magnet for gathering magnet; Arranged outside at a distance from magnet is assisted permanent magnet, and along the circumferential direction width is identical with auxiliary permanent magnet at a distance from magnet; The lateral surface of gathering magnet is an arc, the continuous and undulate of outer surface of auxiliary permanent magnet of m piece and m piece gathering magnet, and main permanent magnet radial magnetizing or radial parallel magnetize, and every adjacent two main permanent magnet magnetizing directions are opposite; Auxiliary permanent magnet cutting orientation magnetizing, every adjacent two auxiliary permanent magnet magnetizing directions are opposite.
Advantage of the present invention: Air-gap Flux Density in Permanent Magnet Machines of the present invention is high, the sinusoidal degree electromagnetic push good, motor of air-gap field is big, force oscillation is little, and cost is low.
Description of drawings
Fig. 1 is the structural representation of the plate shaped linear permanent-magnet motor of execution mode one said single-side structural;
Fig. 2 is the structural representation of the plate shaped linear permanent-magnet motor of execution mode two said bilateral structures;
Fig. 3 is the structural representation of the cylindrical permanent-magnet motor of execution mode three said outer-rotor structures;
Fig. 4 is the structural representation of the cylindrical permanent-magnet motor of execution mode four said inner rotor cores;
Fig. 5 is that execution mode five described inner rotor cores and rotor outer surface are the structural representation of corrugated cylindrical permanent-magnet motor;
Fig. 6 is the structural representation of bilateral no core construction linear permanent magnet synchronous motor traditional in the background technology.
Embodiment
Embodiment one: this execution mode is described below in conjunction with Fig. 1; This execution mode high power density permanent magnet motor; It is the plate shaped linear permanent-magnet motor of single-side structural: it comprises primary and secondary, and air gap is arranged between the primary and secondary, and secondary yoke plate 1, the m piece of comprising is at a distance from magnet 2, m piece auxiliary permanent magnet 3, m piece master permanent magnet 4 and m piece gathering magnet 5; Yoke plate 1 is plate shaped; Yoke plate 1 be arranged at intervals with main permanent magnet 4 on the elementary direction inwall successively and at a distance from magnet 2, the inboard of main permanent magnet 4 is provided with gathering magnet 5, gathering magnet 5 is identical along direction of motion width with main permanent magnet 4; Auxiliary permanent magnet 3 is set in the inboard at a distance from magnet 2, identical along direction of motion width at a distance from magnet 2 with auxiliary permanent magnet 3; The outer surface of auxiliary permanent magnet 3 of m piece and m piece gathering magnet 5 is in same plane, and main permanent magnet 4 parallel magnetizations, magnetizing direction are perpendicular to the mover direction of motion, and every adjacent two main permanent magnet 4 magnetizing directions are opposite; Auxiliary permanent magnet 3 parallel magnetizations, magnetizing direction is parallel to the mover direction of motion, and every adjacent two auxiliary permanent magnet 3 magnetizing directions are opposite.
Gathering magnet 5 adopts high saturation magnetic induction magnetic material, adopts nonmagnetic substance at a distance from magnet 2.
Thickness at a distance from magnet 2 is main permanent magnet 4 and 0%～50% of gathering magnet 5 thickness sums, and auxiliary permanent magnet 3 thickness are main permanent magnet 4 and 20%～90% of gathering magnet 5 thickness sums.
The saturation magnetic induction of gathering magnet 5 is higher than the saturation magnetic induction of main permanent magnet 4, and the remanent magnetism of main permanent magnet 4 is higher than the remanent magnetism of auxiliary permanent magnet 3, and the coercive force of auxiliary permanent magnet 3 is higher than the coercive force of main permanent magnet 4.
Embodiment two: below in conjunction with Fig. 2 this execution mode is described, this execution mode high power density permanent magnet motor, it is the plate shaped linear permanent-magnet motor of bilateral structure:
It comprises elementary and two secondary; Elementary and each air gap is all arranged between secondary; Each secondary yoke plate 1, m piece of comprising is at a distance from magnet 2, m piece auxiliary permanent magnet 3, m piece master permanent magnet 4 and m piece gathering magnet 5, and yoke plate 1 is plate shaped, on the madial wall of yoke plate 1, is arranged at intervals with main permanent magnet 4 and separated magnet 2 successively; The inboard of main permanent magnet 4 is provided with gathering magnet 5, and gathering magnet 5 is identical along direction of motion width with main permanent magnet 4; Auxiliary permanent magnet 3 is set in the inboard at a distance from magnet 2, identical along direction of motion width at a distance from magnet 2 with auxiliary permanent magnet 3; The outer surface of auxiliary permanent magnet 3 of m piece and m piece gathering magnet 5 is in same plane, and main permanent magnet 4 parallel magnetizations, magnetizing direction are perpendicular to the mover direction of motion, and every adjacent two main permanent magnet 4 magnetizing directions are opposite; Auxiliary permanent magnet 3 parallel magnetizations, magnetizing direction is parallel to the mover direction of motion, and every adjacent two auxiliary permanent magnet 3 magnetizing directions are opposite; The magnetizing direction of the main permanent magnet 4 of two secondary same positions is identical, and auxiliary permanent magnet 3 magnetizing directions of two secondary same positions are opposite.
Gathering magnet 5 adopts high saturation magnetic induction magnetic material, adopts nonmagnetic substance at a distance from magnet 2.
Thickness at a distance from magnet 2 is main permanent magnet 4 and 0%～50% of gathering magnet 5 thickness sums, and auxiliary permanent magnet 3 thickness are main permanent magnet 4 and 20%～90% of gathering magnet 5 thickness sums.
The saturation magnetic induction of gathering magnet 5 is higher than the saturation magnetic induction of main permanent magnet 4, and the remanent magnetism of main permanent magnet 4 is higher than the remanent magnetism of auxiliary permanent magnet 3, and the coercive force of auxiliary permanent magnet 3 is higher than the coercive force of main permanent magnet 4.
Embodiment three: below in conjunction with Fig. 3 this execution mode is described, this execution mode high power density permanent magnet motor, it is the cylindrical permanent-magnet motor of outer-rotor structure:
It comprises stator and rotor; Rotor is positioned at the stator outside, between stator and the rotor air gap is arranged, and rotor comprises that yoke tube 6, m piece are at a distance from magnet 2, m piece auxiliary permanent magnet 3, m piece master permanent magnet 4 and m piece gathering magnet 5; Yoke tube 6 is a cylindrical shape; Internal circular surfaces at yoke tube 6 is arranged at intervals with main permanent magnet 4 and separated magnet 2 successively, and the inboard of main permanent magnet 4 is provided with gathering magnet 5, and along the circumferential direction angle is identical with main permanent magnet 4 for gathering magnet 5; In the inboard at a distance from magnet 2 auxiliary permanent magnet 3 is set, along the circumferential direction width is identical with auxiliary permanent magnet 3 at a distance from magnet 2; The inner surface of auxiliary permanent magnet 3 of m piece and m piece gathering magnet 5 is on the same circumference, and main permanent magnet 4 radial magnetizings or radial parallel magnetize, and every adjacent two main permanent magnet 4 magnetizing directions are opposite; Auxiliary permanent magnet 3 cutting orientation magnetizings, every adjacent two auxiliary permanent magnet 3 magnetizing directions are opposite.
Gathering magnet 5 adopts high saturation magnetic induction magnetic material, adopts nonmagnetic substance at a distance from magnet 2.
Thickness at a distance from magnet 2 is main permanent magnet 4 and 0%～50% of gathering magnet 5 thickness sums, and auxiliary permanent magnet 3 thickness are main permanent magnet 4 and 20%～90% of gathering magnet 5 thickness sums.
The saturation magnetic induction of gathering magnet 5 is higher than the saturation magnetic induction of main permanent magnet 4, and the remanent magnetism of main permanent magnet 4 is higher than the remanent magnetism of auxiliary permanent magnet 3, and the coercive force of auxiliary permanent magnet 3 is higher than the coercive force of main permanent magnet 4.
Embodiment four: below in conjunction with Fig. 4 this execution mode is described, this execution mode high power density permanent magnet motor, it is the cylindrical permanent-magnet motor of inner rotor core:
It comprises stator and rotor; Rotor is positioned at stator interior, between stator and the rotor air gap is arranged, and rotor comprises that yoke tube 6, m piece are at a distance from magnet 2, m piece auxiliary permanent magnet 3, m piece master permanent magnet 4 and m piece gathering magnet 5; Yoke tube 6 is a cylindrical shape; Outer round surface at yoke tube 6 is arranged at intervals with main permanent magnet 4 and separated magnet 2 successively, the arranged outside gathering magnet 5 of main permanent magnet 4, and along the circumferential direction angle is identical with main permanent magnet 4 for gathering magnet 5; Arranged outside at a distance from magnet 2 is assisted permanent magnet 3, and along the circumferential direction width is identical with auxiliary permanent magnet 3 at a distance from magnet 2; The outer surface of auxiliary permanent magnet 3 of m piece and m piece gathering magnet 5 is on same circumference, and main permanent magnet 4 radial magnetizings or radial parallel magnetize, and every adjacent two main permanent magnet 4 magnetizing directions are opposite; Auxiliary permanent magnet 3 cutting orientation magnetizings, every adjacent two auxiliary permanent magnet 3 magnetizing directions are opposite.
Gathering magnet 5 adopts high saturation magnetic induction magnetic material, adopts nonmagnetic substance at a distance from magnet 2.
Thickness at a distance from magnet 2 is main permanent magnet 4 and 0%～50% of gathering magnet 5 thickness sums, and auxiliary permanent magnet 3 thickness are main permanent magnet 4 and 20%～90% of gathering magnet 5 thickness sums.
The saturation magnetic induction of gathering magnet 5 is higher than the saturation magnetic induction of main permanent magnet 4, and the remanent magnetism of main permanent magnet 4 is higher than the remanent magnetism of auxiliary permanent magnet 3, and the coercive force of auxiliary permanent magnet 3 is higher than the coercive force of main permanent magnet 4.
Embodiment five: below in conjunction with Fig. 5 this execution mode is described, this execution mode high power density permanent magnet motor, it is that inner rotor core and rotor outer surface are corrugated cylindrical permanent-magnet motor:
It comprises stator and rotor; Rotor is positioned at stator interior, between stator and the rotor air gap is arranged, and rotor comprises that yoke tube 6, m piece are at a distance from magnet 2, m piece auxiliary permanent magnet 3, m piece master permanent magnet 4 and m piece gathering magnet 5; Yoke tube 6 is a cylindrical shape; Outer round surface at yoke tube 6 is arranged at intervals with main permanent magnet 4 and separated magnet 2 successively, the arranged outside gathering magnet 5 of main permanent magnet 4, and along the circumferential direction angle is identical with main permanent magnet 4 for gathering magnet 5; Arranged outside at a distance from magnet 2 is assisted permanent magnet 3, and along the circumferential direction width is identical with auxiliary permanent magnet 3 at a distance from magnet 2; The lateral surface of gathering magnet 5 is an arc, the continuous and undulate of outer surface of auxiliary permanent magnet 3 of m piece and m piece gathering magnet 5, and main permanent magnet 4 radial magnetizings or radial parallel magnetize, and every adjacent two main permanent magnet 4 magnetizing directions are opposite; Auxiliary permanent magnet 3 cutting orientation magnetizings, every adjacent two auxiliary permanent magnet 3 magnetizing directions are opposite.
Gathering magnet 5 adopts high saturation magnetic induction magnetic material, adopts nonmagnetic substance at a distance from magnet 2.
Thickness at a distance from magnet 2 is main permanent magnet 4 and 0%～50% of gathering magnet 5 thickness sums, and auxiliary permanent magnet 3 thickness are main permanent magnet 4 and 20%～90% of gathering magnet 5 thickness sums.
The saturation magnetic induction of gathering magnet 5 is higher than the saturation magnetic induction of main permanent magnet 4, and the remanent magnetism of main permanent magnet 4 is higher than the remanent magnetism of auxiliary permanent magnet 3, and the coercive force of auxiliary permanent magnet 3 is higher than the coercive force of main permanent magnet 4.
Claims (10)
1. high power density permanent magnet motor; It is the flat permanent magnet motor, and it comprises primary and secondary, and air gap is arranged between the primary and secondary; It is characterized in that; The secondary yoke plate (1), m piece of comprising is at a distance from magnet (2), m piece auxiliary permanent magnet (3), m piece master permanent magnet (4) and m piece gathering magnet (5), and yoke plate (1) is plate shaped, on elementary direction inwall, is arranged at intervals with main permanent magnet (4) and separated magnet (2) at yoke plate (1) successively; The inboard of main permanent magnet (4) is provided with gathering magnet (5), and gathering magnet (5) is identical along direction of motion width with main permanent magnet (4); Inboard at a distance from magnet (2) is provided with auxiliary permanent magnet (3), and is identical along direction of motion width with auxiliary permanent magnet (3) at a distance from magnet (2); The m piece assists the outer surface of permanent magnet (3) and m piece gathering magnet (5) to be in same plane, and main permanent magnet (4) parallel magnetization, magnetizing direction are perpendicular to the mover direction of motion, and every adjacent two main permanent magnet (4) magnetizing directions are opposite; Auxiliary permanent magnet (3) parallel magnetization, magnetizing direction is parallel to the mover direction of motion, and every adjacent two auxiliary permanent magnet (3) magnetizing directions are opposite.
2. high power density permanent magnet motor; It is bilateral shape flat permanent magnet motor, it comprise elementary and two secondary, elementary and each air gap is all arranged between secondary; It is characterized in that; Each secondary yoke plate (1), m piece of comprising is at a distance from magnet (2), m piece auxiliary permanent magnet (3), m piece master permanent magnet (4) and m piece gathering magnet (5), and yoke plate (1) is plate shaped, on the madial wall of yoke plate (1), is arranged at intervals with main permanent magnet (4) and separated magnet (2) successively; The inboard of main permanent magnet (4) is provided with gathering magnet (5), and gathering magnet (5) is identical along direction of motion width with main permanent magnet (4); Inboard at a distance from magnet (2) is provided with auxiliary permanent magnet (3), and is identical along direction of motion width with auxiliary permanent magnet (3) at a distance from magnet (2); The m piece assists the outer surface of permanent magnet (3) and m piece gathering magnet (5) to be in same plane, and main permanent magnet (4) parallel magnetization, magnetizing direction are perpendicular to the mover direction of motion, and every adjacent two main permanent magnet (4) magnetizing directions are opposite; Auxiliary permanent magnet (3) parallel magnetization, magnetizing direction is parallel to the mover direction of motion, and every adjacent two auxiliary permanent magnet (3) magnetizing directions are opposite; The magnetizing direction of the main permanent magnet (4) of two secondary same positions is identical, and auxiliary permanent magnet (3) magnetizing direction of two secondary same positions is opposite.
3. high power density permanent magnet motor, it is the cylindrical permanent-magnet motor, it comprises stator and rotor; Rotor is positioned at the stator outside; Between stator and the rotor air gap is arranged, it is characterized in that, rotor comprises that yoke tube (6), m piece are at a distance from magnet (2), m piece auxiliary permanent magnet (3), m piece master permanent magnet (4) and m piece gathering magnet (5); Yoke tube (6) is a cylindrical shape; Internal circular surfaces at yoke tube (6) is arranged at intervals with main permanent magnet (4) and separated magnet (2) successively, and the inboard of main permanent magnet (4) is provided with gathering magnet (5), and along the circumferential direction angle is identical with main permanent magnet (4) for gathering magnet (5); Inboard at a distance from magnet (2) is provided with auxiliary permanent magnet (3), and along the circumferential direction width is identical with auxiliary permanent magnet (3) at a distance from magnet (2); The m piece assists the inner surface of permanent magnet (3) and m piece gathering magnet (5) to be on the same circumference, main permanent magnet (4) radial magnetizing, and every adjacent two main permanent magnet (4) magnetizing directions are opposite; Auxiliary permanent magnet (3) cutting orientation magnetizing, every adjacent two auxiliary permanent magnet (3) magnetizing directions are opposite.
4. high power density permanent magnet motor, it is the cylindrical permanent-magnet motor, it comprises stator and rotor; Rotor is positioned at the stator outside; Between stator and the rotor air gap is arranged, it is characterized in that, rotor comprises that yoke tube (6), m piece are at a distance from magnet (2), m piece auxiliary permanent magnet (3), m piece master permanent magnet (4) and m piece gathering magnet (5); Yoke tube (6) is a cylindrical shape; Internal circular surfaces at yoke tube (6) is arranged at intervals with main permanent magnet (4) and separated magnet (2) successively, and the inboard of main permanent magnet (4) is provided with gathering magnet (5), and along the circumferential direction angle is identical with main permanent magnet (4) for gathering magnet (5); Inboard at a distance from magnet (2) is provided with auxiliary permanent magnet (3), and along the circumferential direction width is identical with auxiliary permanent magnet (3) at a distance from magnet (2); The m piece assists the inner surface of permanent magnet (3) and m piece gathering magnet (5) to be on the same circumference, and main permanent magnet (4) radial parallel magnetizes, and every adjacent two main permanent magnet (4) magnetizing directions are opposite; Auxiliary permanent magnet (3) cutting orientation magnetizing, every adjacent two auxiliary permanent magnet (3) magnetizing directions are opposite.
5. high power density permanent magnet motor, it is the cylindrical permanent-magnet motor, it comprises stator and rotor; Rotor is positioned at stator interior; Between stator and the rotor air gap is arranged, it is characterized in that, rotor comprises that yoke tube (6), m piece are at a distance from magnet (2), m piece auxiliary permanent magnet (3), m piece master permanent magnet (4) and m piece gathering magnet (5); Yoke tube (6) is a cylindrical shape; Outer round surface at yoke tube (6) is arranged at intervals with main permanent magnet (4) and separated magnet (2) successively, the arranged outside gathering magnet (5) of main permanent magnet (4), and along the circumferential direction angle is identical with main permanent magnet (4) for gathering magnet (5); Arranged outside at a distance from magnet (2) is assisted permanent magnet (3), and along the circumferential direction width is identical with auxiliary permanent magnet (3) at a distance from magnet (2); The m piece assists the outer surface of permanent magnet (3) and m piece gathering magnet (5) on same circumference, main permanent magnet (4) radial magnetizing, and every adjacent two main permanent magnet (4) magnetizing directions are opposite; Auxiliary permanent magnet (3) cutting orientation magnetizing, every adjacent two auxiliary permanent magnet (3) magnetizing directions are opposite.
6. high power density permanent magnet motor, it is the cylindrical permanent-magnet motor, it comprises stator and rotor; Rotor is positioned at stator interior; Between stator and the rotor air gap is arranged, it is characterized in that, rotor comprises that yoke tube (6), m piece are at a distance from magnet (2), m piece auxiliary permanent magnet (3), m piece master permanent magnet (4) and m piece gathering magnet (5); Yoke tube (6) is a cylindrical shape; Outer round surface at yoke tube (6) is arranged at intervals with main permanent magnet (4) and separated magnet (2) successively, the arranged outside gathering magnet (5) of main permanent magnet (4), and along the circumferential direction angle is identical with main permanent magnet (4) for gathering magnet (5); Arranged outside at a distance from magnet (2) is assisted permanent magnet (3), and along the circumferential direction width is identical with auxiliary permanent magnet (3) at a distance from magnet (2); The m piece assists the outer surface of permanent magnet (3) and m piece gathering magnet (5) on same circumference, and main permanent magnet (4) radial parallel magnetizes, and every adjacent two main permanent magnet (4) magnetizing directions are opposite; Auxiliary permanent magnet (3) cutting orientation magnetizing, every adjacent two auxiliary permanent magnet (3) magnetizing directions are opposite.
7. high power density permanent magnet motor, it is the cylindrical permanent-magnet motor, it comprises stator and rotor; Rotor is positioned at stator interior; Between stator and the rotor air gap is arranged, it is characterized in that, rotor comprises that yoke tube (6), m piece are at a distance from magnet (2), m piece auxiliary permanent magnet (3), m piece master permanent magnet (4) and m piece gathering magnet (5); Yoke tube (6) is a cylindrical shape; Outer round surface at yoke tube (6) is arranged at intervals with main permanent magnet (4) and separated magnet (2) successively, the arranged outside gathering magnet (5) of main permanent magnet (4), and along the circumferential direction angle is identical with main permanent magnet (4) for gathering magnet (5); Arranged outside at a distance from magnet (2) is assisted permanent magnet (3), and along the circumferential direction width is identical with auxiliary permanent magnet (3) at a distance from magnet (2); The lateral surface of gathering magnet (5) is an arc, and the m piece is assisted the continuous and undulate of the outer surface of permanent magnet (3) and m piece gathering magnet (5), main permanent magnet (4) radial magnetizing, and every adjacent two main permanent magnet (4) magnetizing directions are opposite; Auxiliary permanent magnet (3) cutting orientation magnetizing, every adjacent two auxiliary permanent magnet (3) magnetizing directions are opposite.
8. high power density permanent magnet motor, it is the cylindrical permanent-magnet motor, it comprises stator and rotor; Rotor is positioned at stator interior; Between stator and the rotor air gap is arranged, it is characterized in that, rotor comprises that yoke tube (6), m piece are at a distance from magnet (2), m piece auxiliary permanent magnet (3), m piece master permanent magnet (4) and m piece gathering magnet (5); Yoke tube (6) is a cylindrical shape; Outer round surface at yoke tube (6) is arranged at intervals with main permanent magnet (4) and separated magnet (2) successively, the arranged outside gathering magnet (5) of main permanent magnet (4), and along the circumferential direction angle is identical with main permanent magnet (4) for gathering magnet (5); Arranged outside at a distance from magnet (2) is assisted permanent magnet (3), and along the circumferential direction width is identical with auxiliary permanent magnet (3) at a distance from magnet (2); The lateral surface of gathering magnet (5) is an arc, and the m piece is assisted the continuous and undulate of the outer surface of permanent magnet (3) and m piece gathering magnet (5), and main permanent magnet (4) radial parallel magnetizes, and every adjacent two main permanent magnet (4) magnetizing directions are opposite; Auxiliary permanent magnet (3) cutting orientation magnetizing, every adjacent two auxiliary permanent magnet (3) magnetizing directions are opposite.
9. according to any described high power density permanent magnet motor of claim of claim 1 to 8, it is characterized in that gathering magnet (5) adopts high saturation magnetic induction magnetic material, adopt nonmagnetic substance at a distance from magnet (2).
10. according to any described high power density permanent magnet motor of claim of claim 1 to 8; It is characterized in that; The saturation magnetic induction of gathering magnet (5) is higher than the saturation magnetic induction of main permanent magnet (4); The remanent magnetism of main permanent magnet (4) is higher than the remanent magnetism of auxiliary permanent magnet (3), and the coercive force of auxiliary permanent magnet (3) is higher than the coercive force of main permanent magnet (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105157275A CN101969261B (en) | 2010-10-22 | 2010-10-22 | High-power density permanent magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105157275A CN101969261B (en) | 2010-10-22 | 2010-10-22 | High-power density permanent magnet motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101969261A CN101969261A (en) | 2011-02-09 |
| CN101969261B true CN101969261B (en) | 2012-06-27 |
Family
ID=43548373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105157275A Active CN101969261B (en) | 2010-10-22 | 2010-10-22 | High-power density permanent magnet motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101969261B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3324526A1 (en) * | 2016-11-21 | 2018-05-23 | Panasonic Intellectual Property Management Co., Ltd. | Magnetic field generating member and motor including same |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102097917B (en) * | 2011-03-25 | 2012-12-05 | 哈尔滨工业大学 | Short primary DC (direct current) linear motor |
| CN102185458B (en) * | 2011-05-18 | 2013-03-27 | 哈尔滨工业大学 | High-precision slotless permanent magnet motor |
| DE102012021048A1 (en) | 2011-10-31 | 2013-05-02 | Asmo Co., Ltd. | Rotor and motor |
| DE102012021109B4 (en) * | 2011-10-31 | 2023-04-27 | Denso Corporation | rotor and engine |
| CN102377318B (en) * | 2011-11-09 | 2013-06-19 | 哈尔滨泰富实业有限公司 | Bilateral permanent magnetic linear electric motor without iron core |
| CN102570772A (en) * | 2012-02-27 | 2012-07-11 | 浙江大学 | Magnetism regulating type permanent magnetic linear synchronous motor |
| CN103633759B (en) | 2012-08-20 | 2017-12-01 | 阿斯莫有限公司 | Rotor and motor |
| CN108599520A (en) * | 2018-06-22 | 2018-09-28 | 博众精工科技股份有限公司 | More mover moving-magnetic type Discrete control linear induction motor systems |
| CN108744288A (en) * | 2018-06-25 | 2018-11-06 | 东莞市星显电子科技有限公司 | A kind of Gyromagnetic device |
| CN109586543B (en) * | 2018-12-07 | 2020-11-03 | 南京航空航天大学 | Stator coreless permanent magnet linear motor for electromagnetic boosting |
| CN110545023A (en) * | 2019-08-21 | 2019-12-06 | 同济大学 | Segmented coreless long-stator permanent magnet linear synchronous motor for rail transit |
| CN112350480A (en) * | 2020-12-14 | 2021-02-09 | 哈尔滨理工大学 | High-efficiency Halbach array permanent magnet synchronous motor |
| CN113644769A (en) * | 2021-08-27 | 2021-11-12 | 大连海事大学 | Magnetic-gathering type permanent-magnet fault-tolerant vernier rim propulsion motor |
| CN116961356B (en) * | 2023-09-19 | 2023-12-12 | 中国科学院长春光学精密机械与物理研究所 | Long-stroke motion motor capable of providing Z-direction buoyancy for rotor |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2096836U (en) * | 1991-07-06 | 1992-02-19 | 周伯飞 | Fissure type magnetic pole device of permanent-magnet generator |
| US5396140A (en) * | 1993-05-28 | 1995-03-07 | Satcon Technology, Corp. | Parallel air gap serial flux A.C. electrical machine |
| EP0832511B1 (en) * | 1996-04-16 | 2001-05-23 | DaimlerChrysler Rail Systems GmbH | Electric machine |
| CN101383552A (en) * | 2008-10-13 | 2009-03-11 | 哈尔滨工业大学 | Bilateral excitation full super conduction synchronous electric motor |
| CN101404438A (en) * | 2008-11-27 | 2009-04-08 | 哈尔滨工业大学 | High-thrust short-travel voice coil motor |
| CN101447367A (en) * | 2008-12-26 | 2009-06-03 | 沈阳工业大学 | Permanent magnet linear thrust operating mechanism used for vacuum circuit breaker |
| CN101459012A (en) * | 2008-12-26 | 2009-06-17 | 沈阳工业大学 | Permanent magnet linear motor operation mechanism for high voltage circuit breaker |
| CN101552494A (en) * | 2009-05-14 | 2009-10-07 | 浙江大学 | A mixed excitation switch magnetic linkage motor |
| CN101562384A (en) * | 2009-05-14 | 2009-10-21 | 浙江大学 | Magnetic-field-enhanced permanent-magnetic switching flux linkage motor with high fault tolerance |
| CN101741213A (en) * | 2010-02-21 | 2010-06-16 | 哈尔滨工业大学 | Cylindrical permanent magnet linear motor |
-
2010
- 2010-10-22 CN CN2010105157275A patent/CN101969261B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2096836U (en) * | 1991-07-06 | 1992-02-19 | 周伯飞 | Fissure type magnetic pole device of permanent-magnet generator |
| US5396140A (en) * | 1993-05-28 | 1995-03-07 | Satcon Technology, Corp. | Parallel air gap serial flux A.C. electrical machine |
| EP0832511B1 (en) * | 1996-04-16 | 2001-05-23 | DaimlerChrysler Rail Systems GmbH | Electric machine |
| CN101383552A (en) * | 2008-10-13 | 2009-03-11 | 哈尔滨工业大学 | Bilateral excitation full super conduction synchronous electric motor |
| CN101404438A (en) * | 2008-11-27 | 2009-04-08 | 哈尔滨工业大学 | High-thrust short-travel voice coil motor |
| CN101447367A (en) * | 2008-12-26 | 2009-06-03 | 沈阳工业大学 | Permanent magnet linear thrust operating mechanism used for vacuum circuit breaker |
| CN101459012A (en) * | 2008-12-26 | 2009-06-17 | 沈阳工业大学 | Permanent magnet linear motor operation mechanism for high voltage circuit breaker |
| CN101552494A (en) * | 2009-05-14 | 2009-10-07 | 浙江大学 | A mixed excitation switch magnetic linkage motor |
| CN101562384A (en) * | 2009-05-14 | 2009-10-21 | 浙江大学 | Magnetic-field-enhanced permanent-magnetic switching flux linkage motor with high fault tolerance |
| CN101741213A (en) * | 2010-02-21 | 2010-06-16 | 哈尔滨工业大学 | Cylindrical permanent magnet linear motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3324526A1 (en) * | 2016-11-21 | 2018-05-23 | Panasonic Intellectual Property Management Co., Ltd. | Magnetic field generating member and motor including same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101969261A (en) | 2011-02-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101969261B (en) | High-power density permanent magnet motor | |
| CN102185458B (en) | High-precision slotless permanent magnet motor | |
| CN104811011B (en) | Cylindrical type transverse magnetic-field permanent-magnet flux-switching linear motor | |
| CN101552534B (en) | Transverse flux cylinder type permanent magnet linear synchronous motor | |
| CN102255470B (en) | LPMSM (linear permanent magnet synchronous motor) with low-thrust fluctuation | |
| CN108777518B (en) | Rotor structure of asymmetric mixed rare earth-less permanent magnet motor | |
| CN101552535B (en) | Cylinder type flux-reversal linear machine | |
| CN102158042B (en) | High-dynamic cylindrical linear reluctance motor | |
| JP2012034436A (en) | Rotating electric machine, direct-acting electric machine and wind-force power generating system | |
| CN105553222A (en) | End-effect-free fault-tolerant permanent magnet vernier linear motor | |
| CN102594086A (en) | High-power density permanent magnet motor | |
| CN112491177A (en) | Anti-demagnetization rotor and MW-level permanent magnet synchronous wind driven generator | |
| CN109039002A (en) | A kind of built-in vernier permanent-magnetism linear motor of permanent magnet | |
| CN104167897A (en) | Flat-plate-type transverse magnetic flux switching permanent magnet linear motor | |
| CN102497081A (en) | Magnetic-field modulation-type cylinder-type transverse-flux linear motor | |
| CN101741213B (en) | Cylindrical permanent magnet linear motor | |
| CN109004777A (en) | A kind of flux-reversal claw-pole motor component | |
| JP2005051929A (en) | Motor | |
| CN103199669B (en) | Heterogeneous Long Distances cylinder type flux suitching type linear electric motors | |
| WO2023137933A1 (en) | Axial-field electric motor rotor and method for manufacturing same, and axial-field electric motor | |
| CN213547339U (en) | Double-stator split-tooth type cylindrical linear motor and driving mechanism | |
| CN106787569B (en) | Magnetic suspension magnetic flux switching motor | |
| CN103647422B (en) | A kind of magnetic circuit tandem type motor using hybrid permanent magnet material | |
| CN212012439U (en) | Gear cutting type permanent magnet linear motor | |
| CN203674940U (en) | Series-type hybrid magnetic material motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |