CN209731031U - A kind of non-contact commutation power supply motor of three-phase alternating current wound rotor - Google Patents
A kind of non-contact commutation power supply motor of three-phase alternating current wound rotor Download PDFInfo
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- CN209731031U CN209731031U CN201920453918.XU CN201920453918U CN209731031U CN 209731031 U CN209731031 U CN 209731031U CN 201920453918 U CN201920453918 U CN 201920453918U CN 209731031 U CN209731031 U CN 209731031U
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- rotor
- exciter
- main motor
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- 238000004804 winding Methods 0.000 claims abstract description 69
- 230000005291 magnetic effect Effects 0.000 claims abstract description 26
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 20
- 239000010703 silicon Substances 0.000 claims abstract description 20
- 230000005284 excitation Effects 0.000 claims abstract description 10
- 235000000396 iron Nutrition 0.000 claims abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 37
- 229910052742 iron Inorganic materials 0.000 claims description 11
- 230000014759 maintenance of location Effects 0.000 claims description 2
- 238000009827 uniform distribution Methods 0.000 claims description 2
- 241000271510 Agkistrodon contortrix Species 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
A kind of non-contact commutation power supply motor of three-phase alternating current wound rotor, including main motor, exciter and annular direction selecting controller.Two DC bus, multiple silicon controlled rectifier switch elements, multiple Hall switching elements, multiple full-bridge rectification elements are set on the ring support being coaxial with the rotor.Annular magnet bracket is provided on the outside of ring support.Uniformly distributed multiple permanent magnetic irons, exciter have identical number of pole-pairs, magnetic field rotation direction with main motor stator winding in magnet holder.Exciter rotor main winding is identical as the number of coils of main motor rotor windings.Exciter rotor auxiliary winding is connected on the ac input end of full-bridge rectification element, and multiple excitation commutation lines are connect with multiple main commutation lines by silicon controlled rectifier switch element.Each silicon controlled rectifier switch element is connected on two DC bus by Hall switching element.It realizes and powers to the non-contact of three-phase asynchronous motor rotor for commutation, eliminate traditional use slip ring and copperhead.
Description
Technical field
The utility model belongs to electric motors, in particular to a kind of non-contact commutation power supply electricity of three-phase alternating current wound rotor
Motivation.
Background technique
Inventor proposes kind of a three-phase AC speed-regulating for rotor industrial frequency AC excitation inside patent of invention CN104993627
Motor, the motor have good variable voltage control performance, are disadvantageous in that, rotor power supply is commutated using traditional copperhead
Device power supply, there is abrasions for commutator and brush, need to be replaced frequently carbon brush, repair to commutator.Brush power supply simultaneously
It there is unavoidable sparking, not explosion-proof, seriously affected the popularization and use of the motor.
Utility model content
In view of the above problems, the utility model proposes a kind of non-contact commutation power supply of three-phase alternating current wound rotor is electronic
Machine.Solve original commutator for electric motor and brush wear, the not explosion-proof problem of brush.
The technical solution adopted is that:
A kind of non-contact commutation power supply motor of three-phase alternating current wound rotor, including main motor, exciter and annular commutation
Controller.
Main motor, including main motor stator, main motor stator winding, main motor rotor and main motor rotor windings.Main electricity
Machine stator is set in the outside of main motor rotor, and main motor stator winding is embedded in the iron core groove of main motor stator, main electricity
Machine rotor winding is embedded in the iron core groove of main motor rotor.
Exciter, including exciter stator, exciter stator winding, exciter rotor, exciter rotor main winding and encourage
Magnetomechanical rotor auxiliary winding.Exciter stator is set in the outside of exciter rotor, and it is fixed that exciter stator winding is embedded in exciter
In the iron core groove of son, exciter rotor main winding and exciter rotor auxiliary winding are embedded in the iron core groove of exciter rotor
It is interior.
Technical points are:
Annular direction selecting controller, including ring support, multiple silicon controlled rectifier switch elements, multiple Hall switching elements, two
DC bus and multiple full-bridge rectification elements.
Two DC bus, multiple silicon controlled rectifier switch elements, multiple Hall switching elements, the setting of multiple full-bridge rectification elements
In on the ring support being coaxial with the rotor.Multiple silicon controlled rectifier switch elements, multiple Hall switching elements and multiple full-bridge rectifications member
Part respectively presses circumference uniform distribution arranged on a toroidal support, equiangularly spaced uniformly distributed.The working surface court of Hall switching element
To the normal direction of circumference.
Annular magnet bracket is provided on the outside of ring support.Uniformly distributed multiple permanent magnetic irons, permanent magnetism in magnet holder
Depending on magnet quantity is according to the number of poles of main motor, main motor is that three permanent magnetic irons are arranged in the two poles of the earth threephase motor, and main motor is
Six permanent magnetic irons are arranged in quadrupole threephase motor.Permanent magnetic iron working surface can be non-with the working surface of Hall switching element
Contact is overlapped, retention gap between permanent magnetic iron working surface and the working surface of Hall switching element.
Exciter stator and main motor stator are coaxially disposed, and exciter stator winding has identical with main motor stator winding
Number of pole-pairs, exciter stator is identical as main motor stator magnetic field rotation direction, exciter rotor setting coaxial with main motor rotor,
Exciter rotor is wound rotor with main motor rotor and rotor core fluting number is identical, the coil of exciter rotor main winding
Quantity is identical as the number of coils of main motor rotor windings.Each coil both ends of exciter rotor auxiliary winding are connected to corresponding
On the ac input end of full-bridge rectification element, two DC output ends of full-bridge rectification element are connect respectively in two DC bus
On, form multiple pulse rectification circuit.
Multiple coils on main motor rotor windings are successively connected from beginning to end, and draw main commutation line from each series connection node.
Multiple coils on exciter rotor main winding are successively connected from beginning to end, and draw excitation commutation line from each series connection node.It is multiple
Excitation commutation line is positioned opposite with multiple main commutation lines and is connected one to one by silicon controlled rectifier switch element.It is each silicon-controlled
The DC trigger circuit of switch element is connected on two DC bus by Hall switching element.
The advantage is that: 1, realize to three-phase asynchronous motor rotor it is non-contact for commutation power, eliminate tradition
Use slip ring and copperhead.2, non-contact power is not worn, and reduces maintenance workload, increases equipment dependability.3, make
The threephase motor of rotor power supply realizes explosion prevention function.
Detailed description of the invention
Fig. 1 is motor overall structure diagram.
Fig. 2 is rotor exchange winding principle expanded view.
Fig. 3 is rotor exchange winding principle partial enlargement expanded view.
Fig. 4 is rotor direct current supply winding principle expanded view.
Fig. 5 is rotor direct current supply winding principle partial enlargement expanded view.
Specific embodiment
A kind of non-contact commutation power supply motor of three-phase alternating current wound rotor, including main motor, exciter and annular commutation
Controller.
Main motor, including main motor stator 1, main motor stator winding 3, main motor rotor 5 and main motor rotor windings 7.
Main motor stator 1 is set in the outside of main motor rotor 5, and main motor stator winding 3 is embedded in the iron core groove of main motor stator 1
Interior, main motor rotor windings 7 are embedded in the iron core groove of main motor rotor 5.
Exciter, including exciter stator 2, exciter stator winding 4, exciter rotor 6, exciter rotor main winding 8
With exciter rotor auxiliary winding 9.Exciter stator 2 is set in the outside of exciter rotor 6, and exciter stator winding 4 is embedded in
In the iron core groove of exciter stator 2, exciter rotor main winding 8 and exciter rotor auxiliary winding 9 are embedded in exciter rotor 6
Iron core groove in.Main motor stator winding, exciter stator winding and exciter rotor auxiliary winding are conventional winding.Main motor
Rotor windings, exciter rotor main winding are prepared into using the specific winding proposed inside patent CN104993627.
Technical points are:
Annular direction selecting controller, including ring support 17, multiple silicon controlled rectifier switch elements 12, multiple Hall switching elements
15, two DC bus 14 and multiple full-bridge rectification elements 13.
Two DC bus 14, multiple silicon controlled rectifier switch elements 12, multiple Hall switching elements 15, multiple full-bridge rectifications member
Part 13 is set on the ring support 17 being coaxial with the rotor.
Multiple silicon controlled rectifier switch elements 12, multiple Hall switching elements 15 and multiple full-bridge rectification elements 13 respectively press circumference
Uniformly distributed arranged is on a toroidal support, equiangularly spaced uniformly distributed.Method of the working surface of Hall switching element 15 towards circumference
Line direction.
The outside of ring support 17 is provided with annular magnet bracket 16.Uniformly distributed multiple permanent magnetic irons in magnet holder 16
18, depending on 18 quantity of permanent magnetic iron is according to the number of poles of main motor, main motor is that three permanent magnetic irons are arranged in the two poles of the earth threephase motor
18, main motor is that six permanent magnetic irons 18 are arranged in quadrupole threephase motor.18 working surface of permanent magnetic iron can be with Hall switch
The non-contact coincidence of the working surface of element 15 is protected between 18 working surface of permanent magnetic iron and the working surface of Hall switching element 15
Stay the gap of very little.
Exciter stator 2 and main motor stator 1 are coaxially disposed, and exciter stator winding 4 has with main motor stator winding 3
Identical number of pole-pairs, exciter stator 2 is identical as 1 magnetic field rotation direction of main motor stator, exciter rotor 6 and main motor rotor 5
Coaxial setting, exciter rotor 6 is wound rotor with main motor rotor 5 and rotor core fluting number is identical, exciter rotor
The number of coils of main winding 8 is identical as the number of coils of main motor rotor windings 7.Each coil of exciter rotor auxiliary winding 9
Both ends are connected on the ac input end of corresponding full-bridge rectification element 13, two DC output ends point of full-bridge rectification element 13
It does not connect on two DC bus 14, forms multiple pulse rectification circuit.
Multiple coils on main motor rotor windings 7 are successively connected from beginning to end, and draw main commutation line from each series connection node
10.Multiple coils on exciter rotor main winding 8 are successively connected from beginning to end, and draw excitation commutation line from each series connection node
11.Multiple excitation commutation lines 11 are positioned opposite with multiple main commutation lines 10 and correspond company by silicon controlled rectifier switch element 12
It connects.The DC trigger circuit of each silicon controlled rectifier switch element 12 is connected to two DC bus 14 by Hall switching element 15
On.
When Hall switching element 15 enters 18 region of permanent magnetic iron, Hall switching element 15 is connected directly under magnetic fields
Galvanic electricity, corresponding silicon controlled rectifier switch element 12 obtain direct current high level and are triggered conducting, and the excitation of exciter rotor main winding 8 is changed
It is connected to between line 11 and the main commutation line 10 of main motor rotor windings 7.When Hall switching element 15 leaves 18th area of permanent magnetic iron
When domain, Hall switching element 15 is detached from magnetic field, and automatic direct is electrically disconnected, and corresponding silicon controlled rectifier switch element 12 loses high level certainly
The main commutation line 10 of dynamic shutdown, the excitation commutation line 11 of the exciter rotor main winding 8 of connection and main motor rotor windings 7 it
It is separated.
Claims (1)
- The motor 1. a kind of non-contact commutation of three-phase alternating current wound rotor is powered, including main motor, exciter and annular commutation control Device processed；Main motor, including main motor stator (1), main motor stator winding (3), main motor rotor (5) and main motor rotor windings (7)；Main motor stator (1) is set in the outside of main motor rotor (5), and main motor stator winding (3) is embedded in main motor stator (1) in iron core groove, main motor rotor windings (7) are embedded in the iron core groove of main motor rotor (5)；Exciter, including exciter stator (2), exciter stator winding (4), exciter rotor (6), exciter rotor main winding (8) and exciter rotor auxiliary winding (9)；Exciter stator (2) is set in the outside of exciter rotor (6), exciter stator around Group (4) is embedded in the iron core groove of exciter stator (2), exciter rotor main winding (8) and exciter rotor auxiliary winding (9) It is embedded in the iron core groove of exciter rotor (6), it is characterised in that:Annular direction selecting controller, including ring support (17), multiple silicon controlled rectifier switch elements (12), multiple Hall switching elements (15), two DC bus (14) and multiple full-bridge rectification elements (13)；Two DC bus (14), multiple silicon controlled rectifier switch elements (12), multiple Hall switching elements (15), multiple full-bridge rectifications Element (13) is set on the ring support (17) being coaxial with the rotor；Multiple silicon controlled rectifier switch elements (12), multiple Hall switch Element (15) and multiple full-bridge rectification elements (13) respectively press circumference uniform distribution arranged on a toroidal support (17)；Hall is opened The working surface of element (15) is closed towards the normal direction of circumference；Annular magnet bracket (16) are provided on the outside of ring support (17)；Uniformly distributed multiple permanent-magnet magnetics on magnet holder (16) Iron (18), depending on permanent magnetic iron (18) quantity is according to the number of poles of main motor, main motor is that the two poles of the earth threephase motor is arranged three forever Magnetic magnet (18), main motor are that six permanent magnetic irons (18) are arranged in quadrupole threephase motor；Permanent magnetic iron (18) working surface energy It is enough with the working surface of Hall switching element (15) is non-contact is overlapped, permanent magnetic iron (18) working surface and Hall switching element (15) retention gap between working surface；Exciter stator (2) and main motor stator (1) are coaxially disposed, exciter stator winding (4) and main motor stator winding (3) With identical number of pole-pairs, exciter stator (2) is identical as main motor stator (1) magnetic field rotation direction, exciter rotor (6) and master Rotor (5) coaxial setting, exciter rotor (6) and main motor rotor (5) are wound rotor and rotor core fluting number Identical, the number of coils of exciter rotor main winding (8) is identical as the number of coils of main motor rotor windings (7)；Exciter turns Each coil both ends of sub- auxiliary winding (9) are connected on the ac input end of corresponding full-bridge rectification element (13), full-bridge rectification Two DC output ends of element (13) are connect respectively on two DC bus (14), form multiple pulse rectification circuit；Multiple coils on main motor rotor windings (7) are successively connected from beginning to end, and draw main commutation line from each series connection node (10)；Multiple coils on exciter rotor main winding (8) are successively connected from beginning to end, and draw excitation commutation from each series connection node Line (11)；Multiple excitation commutation lines (11) are positioned opposite with multiple main commutation lines (10) and pass through silicon controlled rectifier switch element (12) It connects one to one；The DC trigger circuit of each silicon controlled rectifier switch element (12) is connected to two by Hall switching element (15) On DC bus (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920453918.XU CN209731031U (en) | 2019-04-04 | 2019-04-04 | A kind of non-contact commutation power supply motor of three-phase alternating current wound rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920453918.XU CN209731031U (en) | 2019-04-04 | 2019-04-04 | A kind of non-contact commutation power supply motor of three-phase alternating current wound rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209731031U true CN209731031U (en) | 2019-12-03 |
Family
ID=68690293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920453918.XU Withdrawn - After Issue CN209731031U (en) | 2019-04-04 | 2019-04-04 | A kind of non-contact commutation power supply motor of three-phase alternating current wound rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209731031U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109936269A (en) * | 2019-04-04 | 2019-06-25 | 沈阳理工大学 | A kind of non-contact commutation power supply motor of three-phase alternating current wound rotor |
| CN109936269B (en) * | 2019-04-04 | 2024-06-21 | 沈阳理工大学 | Three-phase alternating-current wound rotor non-contact commutation power supply motor |
-
2019
- 2019-04-04 CN CN201920453918.XU patent/CN209731031U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109936269A (en) * | 2019-04-04 | 2019-06-25 | 沈阳理工大学 | A kind of non-contact commutation power supply motor of three-phase alternating current wound rotor |
| CN109936269B (en) * | 2019-04-04 | 2024-06-21 | 沈阳理工大学 | Three-phase alternating-current wound rotor non-contact commutation power supply motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20191203 Effective date of abandoning: 20240621 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20191203 Effective date of abandoning: 20240621 |