CN109245473A - A kind of three-phase motor - Google Patents
A kind of three-phase motor Download PDFInfo
- Publication number
- CN109245473A CN109245473A CN201811221064.9A CN201811221064A CN109245473A CN 109245473 A CN109245473 A CN 109245473A CN 201811221064 A CN201811221064 A CN 201811221064A CN 109245473 A CN109245473 A CN 109245473A
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- Prior art keywords
- phase
- motor
- rotor
- windings
- winding
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
- H02K23/02—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting
- H02K23/04—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting having permanent magnet excitation
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
- H02K23/26—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by the armature windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Windings For Motors And Generators (AREA)
Abstract
A kind of three-phase motor, including stator and rotor, its stator is mainly made of casing and three-phase windings, the coil turn of three-phase windings is identical, three-phase windings are intersected, are radially arranged in around rotor, form cylindrical cavity, and the axis of every phase winding intersects and vertical with the axis of motor, the positive axis of three-phase windings is mutually hexagonal angle in space, and three-phase windings have the gap with rotor.Rotor is mainly made of cylindrical permanent magnet and rotation axis, permanent magnet radial magnetizing.The three-phase motor is both threephase alternator and three-phase alternating-current motor.The three-phase motor, when input power, the three-phase windings of motor always hinder the variation of rotor field, generate induced current；When being passed through three-phase alternating current, the interior magnetic field of the intracavitary electromagnetic field for just generating a rotation of the cylindrical empty of the three-phase windings of motor directly acts on permanent magnet and generates attraction, drive rotor rotation.
Description
Technical field
The present invention relates to technical field of motors more particularly to threephase alternator, three-phase alternating-current motor, DC generations
Machine and dc motor technical field.
Background technique
In the prior art, three-phase alternating-current motor can be divided into two classes from basic structure: the first kind is squirrel-cage three-phase
Asynchronous motor, its stator are mainly made of columnar iron core and threephase stator winding therein, and rotor is cylindrical
Iron core and rotor windings therein composition, rotor windings are cast with copper or aluminium；Second class is Wound-rotor type threephase motor,
Its stator structure is also to be made of columnar iron core and threephase stator winding therein, and rotor is by cylindrical iron core
And three-phase rotor windings composition therein, three-phase rotor windings Astrocytic conditioned medium, the beginning of every phase winding is connected to three
On slip ring made of copper, slip ring is fixed on axis to insulate with axis, and the carbon brush being pressed on copper ring is connect with three phase mains.
The stator of above-mentioned two classes three-phase motor is all made of columnar iron core and threephase stator winding therein, is turned
Son is cylindrical iron core and rotor windings therein composition, and magnetic loop is longer, there is air cleft on magnetic loop, and magnetic resistance is big, structure
Complexity, volume is big, low efficiency.
In order to overcome the deficiencies of the prior art, that the object of the present invention is to provide a kind of structures is simple, small in size, power is big, effect
The high threephase alternator of rate, three-phase alternating-current motor, dc generator and dc motor.
Summary of the invention
The present invention provides a kind of three-phase motor, including stator and rotor, stator are mainly made of casing and three-phase windings,
The coil turn of three-phase windings is identical, and three-phase windings are intersected, are radially arranged in around rotor, forms cylindrical sky
Chamber, the axis of every phase winding intersect and vertical with the axis of motor, and the positive axis of three-phase windings is mutually hexagonal angle in space, and three
Phase winding has the gap with rotor.
Rotor is mainly made of cylindrical permanent magnet and rotation axis, permanent magnet radial magnetizing.
The three-phase motor is both threephase alternator and three-phase alternating-current motor.
The three-phase windings use single or multi-layer structure, and every each layer of phase winding is by two groups of air core coils from rotor
Two sides are radially buckled togather, and serial or parallel connection forms, and there are two straight line and two curved sides, two straight lines for every phase winding
Parallel with the axis of motor, two curved sides are buckled in the two sides of rotation axis.
The air core coil is the rigid line made of coiling, bonding, drying, sizing on enameled wire and the online mould of resin glue
Circle.
The cylindrical permanent magnet is made of one piece or two blocks of permanent magnets.
The permanent magnet is made of sintered NdFeB.
The present invention also provides a kind of dc generators, increase a bridge on every phase winding of three-phase motor of the invention
Every phase winding of formula fairing, three-phase windings is connected after bridge rectifier, filtering, exports direct current outward, the three-phase motor
It is dc generator.
The present invention also provides a kind of dc motors, increase a commutator, commutation on three-phase motor of the invention
Device is mainly made of a slip ring, 2 power supply carbon brush and 6 winding carbon brush, 2 power supply carbon brush respectively with the anode of DC power supply
It is connected with cathode, 6 winding carbon brush are connect with the beginning of three-phase windings and end respectively, and slip ring is fixed on the rotating shaft, slip ring
Insulate with rotation axis, there is copper slip ring on slip ring, 2 power supply carbon brush respectively correspond the ring part of two copper slip rings, 6 around
Two arch sections of the corresponding two copper slip rings of group carbon brush, carbon brush are fixed on casing, and carbon brush and casing insulate, the three-phase electricity
Machine is dc motor.
Detailed description of the invention
Fig. 1 is a kind of sectional view of three-phase motor of the embodiment of the present invention.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the B-B sectional view of Fig. 1.
Fig. 4 is a kind of circuit diagram of dc generator of the embodiment of the present invention.
Fig. 5 is a kind of sectional view of dc motor of the embodiment of the present invention.
Fig. 6 is the C-C sectional view of Fig. 5.
Fig. 7 is the D-D sectional view of Fig. 5.
Fig. 8 is the E-E sectional view of Fig. 5.
Fig. 9 is the F-F sectional view of Fig. 5.
Figure 10 is the G-G sectional view of Fig. 5.
In figure:
1,41 be casing；
2,42 be left end cap, and 3,43 be right end cap；
4,5,44,45 be ball bearing；
6,46 be rotation axis；
7,47,48 be permanent magnet；
49 be commutator pulley；
50,51 be the copper slip ring on commutator pulley；
52,53,54,55,56,57 be winding carbon brush, and 58,59 be power supply carbon brush；
1u, 1u ', 1v, 1v ', 1w, 1w ', u1, u1 ', u2, u2 ', v1, v1 ', v2, v2 ', w1, w1 ', w2, w2 ' it is hollow
Coil.
With reference to the accompanying drawing and specific embodiment further illustrates the present invention.
Embodiment
Attached drawing 1 is a kind of sectional view of three-phase motor of the embodiment of the present invention.
The stator of the three-phase motor is made of casing 1 and three-phase windings, and three-phase windings are fixed on casing 1, three-phase windings
Using single layer structure, the U phase winding in three-phase windings is to be buckled togather string from the two sides of rotor by two groups of air core coil u and u '
Join or is formed in parallel；V phase winding in three-phase windings is to be buckled togather string from the two sides of rotor by two groups of air core coil v and v '
Join or is formed in parallel；W phase winding in three-phase windings is to be buckled togather string from the two sides of rotor by two groups of air core coil w and w '
Join or is formed in parallel.
Rotor is made of one block of permanent magnet 7 and rotation axis 6, and permanent magnet 7 is fixed in rotation axis 6, rotation axis 6 by
Bearing 4 and bearing 5 support, and bearing 4 and bearing 5 are separately mounted on left end cap 2 and right end cap 3, and two end caps in left and right are mounted on
On casing 1.
Fig. 2 is the A-A sectional view of Fig. 1.
Three-phase windings are evenly distributed in around rotor.
Fig. 3 is the B-B sectional view of Fig. 1.
Two curved sides of U phase winding are mounted in except two end faces of rotor, and two groups of air core coil u and u ' are from rotor
Two sides be buckled in rotation axis 6.
From structure compared with prior art, such as three-phase AC asynchronous motor and phase AC synchronous motor, they
Stator and mover be all made of iron core and three-phase windings, winding coil is mounted in the punching on stator and mover, knot
Structure is complicated.
There is no iron core on the stator of three-phase motor of the invention, winding coil is directly installed on rotor, and structure is simple.
From working principle compared with prior art, after phase AC synchronous motor booting, on stator and rotor windings
It is passed through alternating current and generates electromagnetic field, magnetic induction occurs for electromagnetic field and iron core, generates magnetic field in iron core, and the magnetic line of force is from the magnetic on iron core
Magnetic induction generation attraction carrys out drive rotor rotation again for pole and the interaction of other side's magnetic pole；Three-phase AC asynchronous motor booting
Afterwards, it is passed through alternating current on stator winding and generates electromagnetic field, electromagnetic field and iron core occur magnetic induction, generate magnetic field, magnetic force in iron core
Line makes rotor windings generate induced current, the magnetic field of induced current incudes again from the magnetic pole outflow on iron core across rotor core
Iron core generates magnetic field, and two magnetic field interactions of stator and rotor generate attraction and carry out drive rotor rotation.
The three-phase windings of three-phase motor of the invention can directly hinder the variation of rotor field, generate induced current；Three-phase
When winding is passed through three-phase alternating current, the interior magnetic field of the intracavitary electromagnetic field for just generating a rotation of the cylindrical empty of three-phase windings, directly
It connects to act on permanent magnet and generates attraction, drive rotor rotation.
Fig. 4 is the circuit diagram of dc generator of the invention.
As shown, the U phase winding of three-phase windings, V phase winding, W phase winding are gone here and there after bridge rectifier, filtering respectively
Connection, the DC voltage exported after series connection are steady.If the crest voltage of threephase alternator output is Ei volts, if direct current
The output voltage of machine is E volts, if not considering the influence of rectifier diode and filter capacitor, the calculation formula of DC voltage E
Are as follows:
E=Ei × [| sin α |+| sin (120+ α) |+| sin (240+ α) |]
α is phase angle.
The maximum value of E are as follows: the minimum value of E=2 × Ei, E are as follows:
Less than 13.4%, after filtering, output voltage is more for voltage fluctuation when end is through filtering for the output voltage of the dc generator
Add steady.
Fig. 5 is dc motor of the invention.
The stator of the three-phase motor is made of casing 1 and three-phase windings, and three-phase windings are mounted on casing 1, three-phase windings
Use double-layer structure, as shown in fig. 6, the first layer of the U phase winding in three-phase windings be by two groups of air core coil u1 and u1 ' from turn
The two sides of son are buckled togather serial or parallel connection and form, and the second layer is by two groups of air core coil u2 and u2 ' from the two sides pair of rotor
Serial or parallel connection is buckled together to form；The first layer of V phase winding in three-phase windings be by two groups of air core coil v1 and v1 ' from turn
The two sides of son are buckled togather serial or parallel connection and form, and the second layer is by two groups of air core coil v2 and v2 ' from the two sides pair of rotor
Serial or parallel connection is buckled together to form；The first layer of W phase winding in three-phase windings be by two groups of air core coil w1 and w1 ' from turn
The two sides of son are buckled togather serial or parallel connection and form, and the second layer is by two groups of air core coil w2 and w2 ' from the two sides pair of rotor
Serial or parallel connection is buckled together to form.Erection sequence, as shown in Figure 7, Figure 8, since coil u1, u1 of first layer ', it is followed successively by
Coil v1 and v1 ', coil w1 and w1 ', the second layer coil u2, u2 ', coil v2 and v2 ', coil w2 and w2 ' coil installation knot
Beam.
As shown in fig. 6, rotor is made of two blocks of permanent magnets 47,48 and rotation axis 46, permanent magnet 47 and permanent magnet
48 are forward superimposed button is bonded together by resin glue on the rotating shaft, and rotation axis is supported by bearing 44,45, and bearing 44,45 is distinguished
It is mounted on left end cap 42 and right end cap 43, left and right ends lid is mounted on casing 41.
As shown in Figure 9, Figure 10, commutator is by 49, two, pulley, 50,51 and 2, copper slip ring power supply carbon brush 58,59,6
Winding carbon brush 52,53,54,55,56,57 forms, and pulley 49 is fixed in rotation axis 46, and insulate with rotation axis, two coppers
One, slip ring is mounted on the left end of pulley, another is mounted on the right end of pulley, is one complete with 2 power supply carbon brush corresponding parts
Whole copper ring, is the copper sheet of symmetrical two arcs with 6 winding carbon brush corresponding parts, two arc copper sheets respectively with two copper
Ring is integral, and 6 winding carbon brush are connect with the both ends of three-phase windings respectively, 2 power supply carbon brush by switch respectively with direct current
The anode in source is connected with cathode.
Mageneto-sensitive type, magnetic induction type, photoelectric switch device can be used also to realize commutation in reversing arrangement.
Claims (7)
1. a kind of three-phase motor, including stator and mover, characteristic are: stator is mainly made of casing and three-phase windings, three-phase
The coil turn of winding is identical, and three-phase windings are intersected, are radially arranged in around rotor, forms cylindrical cavity, often
The axis of phase winding intersects and vertical with the axis of motor, and the positive axis of three-phase windings is mutually hexagonal angle in space, three-phase around
Group has the gap with rotor；
Rotor is mainly made of cylindrical permanent magnet and rotation axis, permanent magnet radial magnetizing；
The three-phase motor is both threephase alternator and three-phase alternating-current motor.
2. the three-phase motor provided according to claim 1, characteristic are: the three-phase windings use single or multi-layer structure, often
The each layer of phase winding is radially to be buckled togather by two groups of air core coils from the two sides of rotor, and serial or parallel connection forms, every phase around
There are two straight line and two curved sides for group, and two straight lines are parallel with the axis of motor, and two curved sides are buckled in rotation axis
Two sides.
3. the three-phase motor provided according to claim 1 with claim 2, characteristic is: the air core coil is to use enameled wire
With rigid line circle made of coiling, bonding, drying, sizing on the online mould of resin glue.
4. the three-phase motor provided according to claim 1~3, characteristic is: the cylindrical permanent magnet is by one piece or two
Block permanent magnet is constituted.
5. the three-phase motor provided according to claim 1~4, characteristic is made of: the permanent magnet is by sintered NdFeB.
6. the three-phase motor provided according to claim 1~5, characteristic is: increasing by one on every phase winding of three-phase motor
Every phase winding of bridge-type rectifier, three-phase windings is connected after bridge rectifier, filtering, exports direct current outward, the three-phase electricity
Machine is dc generator.
7. the three-phase motor provided according to claim 1~5, characteristic is: increasing a commutator, commutation on three-phase motor
Device is mainly made of a slip ring, 2 power supply carbon brush and 6 winding carbon brush, 2 power supply carbon brush respectively with the anode of DC power supply
It is connected with cathode, 6 winding carbon brush are connect with the beginning of three-phase windings and end respectively, and slip ring is fixed on the rotating shaft, slip ring
It insulate with rotation axis, slip ring has copper slip ring, and 2 power supply carbon brush respectively correspond the ring part of two copper slip rings, 6 windings
Two arch sections of the corresponding two copper slip rings of carbon brush, carbon brush are fixed on casing, and carbon brush and casing insulate, the three-phase motor
It is dc motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811221064.9A CN109245473A (en) | 2018-10-12 | 2018-10-12 | A kind of three-phase motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811221064.9A CN109245473A (en) | 2018-10-12 | 2018-10-12 | A kind of three-phase motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109245473A true CN109245473A (en) | 2019-01-18 |
Family
ID=65080618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811221064.9A Pending CN109245473A (en) | 2018-10-12 | 2018-10-12 | A kind of three-phase motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109245473A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112311119A (en) * | 2019-07-29 | 2021-02-02 | 维谛技术有限公司 | Motor, electric traction system and control method, device and equipment thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1728514A (en) * | 2004-07-28 | 2006-02-01 | 浙江陆发微电机有限公司 | Ultra micro DC brushless motor |
| CN202260712U (en) * | 2011-03-17 | 2012-05-30 | 北京众合劲拓新能源科技有限公司 | 500 watt rare earth permanent magnet wind power generator |
| CN103490576A (en) * | 2013-08-28 | 2014-01-01 | 赵良顺 | Three-phase self-control synchronous electromotor |
| CN204707013U (en) * | 2015-05-20 | 2015-10-14 | 刘新广 | Iron-core less motor |
-
2018
- 2018-10-12 CN CN201811221064.9A patent/CN109245473A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1728514A (en) * | 2004-07-28 | 2006-02-01 | 浙江陆发微电机有限公司 | Ultra micro DC brushless motor |
| CN202260712U (en) * | 2011-03-17 | 2012-05-30 | 北京众合劲拓新能源科技有限公司 | 500 watt rare earth permanent magnet wind power generator |
| CN103490576A (en) * | 2013-08-28 | 2014-01-01 | 赵良顺 | Three-phase self-control synchronous electromotor |
| CN204707013U (en) * | 2015-05-20 | 2015-10-14 | 刘新广 | Iron-core less motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112311119A (en) * | 2019-07-29 | 2021-02-02 | 维谛技术有限公司 | Motor, electric traction system and control method, device and equipment thereof |
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