CN209358309U - Compound rectifier excitation driving motor - Google Patents
Compound rectifier excitation driving motor Download PDFInfo
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- CN209358309U CN209358309U CN201822248474.4U CN201822248474U CN209358309U CN 209358309 U CN209358309 U CN 209358309U CN 201822248474 U CN201822248474 U CN 201822248474U CN 209358309 U CN209358309 U CN 209358309U
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model provides a kind of electromagnetism and permanent magnetism mixing excitation generator, belongs to electric motor of automobile technical field of electric appliances.Including rotor and stator, rotor includes convex grade electrical excitation rotor, durface mounted permanent magnet rotor and vacuum pump rotor, the durface mounted permanent magnet rotor includes rotor core, rotor core is fixed in shaft, rotor core is equipped with the rivet circular hole at circumference, iron rivet is equipped in rivet circular hole, corresponding iron riveting circular hole outside is fixed with tile permanent-magnet steel and pole shoe by screw.The utility model can make full use of space magnetic field, and output voltage is more stable, compact-sized, easy to install and use.
Description
Technical field
The utility model provides a kind of compound rectifier excitation driving motor, belongs to motor in electric automobile technical field of electric appliances.
Background technique
The rotor of the permanent magnet drive motor used on electric car at present mostly uses greatly the outer damascene structures of permanent magnet, such as existing
There are the brushless DC motor rotor in technology, including rotor core, shaft and permanent magnet, rotor core is made of simultaneously punching superposition
It is connected, shaft is fixedly connected with rotor core, and the outer surface of rotor core is evenly distributed with even number T shape voussoir, adjacent T
Slot is constituted between shape voussoir, permanent magnet correspondence is embedded in slot, and the permanent magnet of the construction rotor is being rushed directly facing air gap
It hits under the armature-reaction effect of electric current, it is possible to create irreversible demagnetization, permanent magnet once being formed imitate by irreversible demagnetization, driving motor
Rate reduces, and power, torque decline rapidly, and service performance needs further improvement.
Utility model content
The purpose of the utility model is to provide a kind of compound rectifier excitation driving motor, the magnetic field in driving motor air gap is by permanent magnetism
Steel and electrical excitation winding provide jointly, and magnetic field strength is big, and power density is high.
A kind of compound rectifier excitation driving motor described in the utility model, including rotor with hybrid excitation and stator, described is mixed
Closing excitation rotor includes Lundell electrical excitation rotor and combined type pole wheel, and the stator is wrapped in combined type pole wheel
Outside, the rotor with hybrid excitation includes rotor core, the rotor core be around axis it is convex at the T-type of circumference
Grade, the convex grade of T-type are equipped with rivet circular hole, are equipped with iron rivet in rivet circular hole, and the convex grade top of T-type is successively fixed with watt by screw
Piece permanent-magnet steel and pole shoe, the convex grade bottom end of T-type are wound with electrical excitation winding.Tile permanent-magnet steel and pole shoe can converge magnetic force
Collection makes magnetic field obtain better linear distribution.
The quantity of the convex grade of the T-type is even number.N grades are identical with S grades of quantity, be guarantee motor rotary balance must
Want condition.
Tile permanent-magnet steel outside the convex grade of the T-type by convex surface is N grades, S grades of interval modes are arranged successively.Encourage mixing
Magnet rotor is capable of the rotation of stability and high efficiency.
The center of circle of the rivet circular hole is on the same circumference.The convex grade of T-type when rotating at high speed, avoids bias.
The diameter of the rivet circular hole is greater than the diameter of screw, and the distance of the convex grade internal diameter of the outer span of rivet circular hole is 1-
3mm。
The screw bottom end is connected with iron rivet, and screw center line intersects with iron rivet center line.
The equal turn numbers of the electrical excitation winding wound in the convex grade of each T-type.
After the electrical excitation winding is passed through electric current, the electrical excitation winding polarity of convex surface side and tile permanent magnetism in convex grade
The polarity of steel convex surface side is identical.So that electrical excitation winding can attract each other in the convex grade of T-type with tile permanent-magnet steel.
The stator exterior is coated with casing, and the first side of casing is equipped with drive end bearing bracket, and second side of casing is equipped with rear end cap.
Compared with prior art, the utility model has the beneficial effects that
Tile permanent-magnet steel is fixed on the T-shaped salient pole exterior arc surface of rotor core by pole shoe by non-magnetic screw, driving
Magnetic field in motor gas-gap is provided jointly by tile permanent-magnet steel and electrical excitation winding, and magnetic field strength is big, and power density is high.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment；
Fig. 2 is the combined type magnetic pole rotor profiles figure of embodiment described in Fig. 1.
In figure: 1, rear end cap 2, axis 3, stator 4, casing 5, pole shoe 6, tile permanent-magnet steel 7, screw 8, iron rivet
9, rotor core 10, electrical excitation winding 11, drive end bearing bracket.
Specific embodiment
Embodiment 1
As shown in Figs. 1-2, the embodiment of compound rectifier excitation driving motor described in the utility model, including rotor with hybrid excitation
With stator 3, the rotor with hybrid excitation includes Lundell electrical excitation rotor and combined type pole wheel, and the stator 3 wraps
Be rolled in the outside of combined type pole wheel, the rotor with hybrid excitation includes rotor core, the rotor core be around
Axis 2 is at the convex grade of T-type of circumference, and for the convex grade of T-type equipped with rivet circular hole, rivet circular hole is interior to be equipped with iron rivet, the convex grade top of T-type
Tile permanent-magnet steel and pole shoe are successively fixed with by screw, the convex grade bottom end of T-type is wound with electrical excitation winding.The Lundell electricity
Excitation rotor is non-carbonate slip ring structure, and Lundell electrical excitation rotor is connected to the side of combined type pole wheel by flat key,
Lundell electrical excitation rotor is sleeved on axis 2, and Lundell electrical excitation rotor is identical with the number of poles of combined type pole wheel.
The quantity of the convex grade of the T-type is even number.The quantity of the convex grade of the preferred T-type of this programme is 8-12.
Tile permanent-magnet steel outside the convex grade of the T-type by convex surface is N grades, S grades of interval modes are arranged successively.
The center of circle of the rivet circular hole is on the same circumference.
The diameter of the rivet circular hole is greater than the diameter of screw, and the distance of the convex grade internal diameter of the outer span of rivet circular hole is 1-
3mm。
The screw bottom end is connected with iron rivet, and screw center line intersects with iron rivet center line.
The equal turn numbers of the electrical excitation winding wound in the convex grade of each T-type.
After the electrical excitation winding is passed through electric current, the electrical excitation winding polarity of convex surface side and tile permanent magnetism in convex grade
The polarity of steel convex surface side is identical.
Casing 4 is coated with outside the stator 3,4 first side of casing is equipped with drive end bearing bracket, after second side of casing 4 is equipped with
End cap 1.
The course of work or working principle:
When driving motor is passed through by three-phase inverter after the three-phase alternating current of pulsewidth modulation, driving motor stator 3 is generated
Space rotating magnetic field, it and magnetic field interaction caused by rotor with hybrid excitation, rotor with hybrid excitation generate and 3 winding of stator
The consistent rotating torques in rotating excitation field direction, driving engine rotor rotation, and then drive electric car operation.
Claims (9)
1. a kind of compound rectifier excitation driving motor, including rotor with hybrid excitation and stator (3), it is characterised in that: the mixing is encouraged
Magnet rotor includes Lundell electrical excitation rotor and combined type pole wheel, and the stator (3) is wrapped in combined type pole wheel
Outside, the rotor with hybrid excitation includes rotor core (9), and the rotor core (9) is around axis (2) Cheng Yuanzhou cloth
The convex grade of the T-type set, the convex grade of T-type are equipped with rivet circular hole, are equipped with iron rivet (8) in rivet circular hole, the convex grade top of T-type passes through screw
(7) it is successively fixed with tile permanent-magnet steel (6) and pole shoe (5), the convex grade bottom end of T-type is wound with electrical excitation winding (10).
2. compound rectifier excitation driving motor according to claim 1, it is characterised in that: the quantity of the convex grade of the T-type is even
It is several.
3. compound rectifier excitation driving motor according to claim 1, it is characterised in that: the tile outside the convex grade of the T-type
Permanent-magnet steel (6) by convex surface is N grades, S grades of interval modes are arranged successively.
4. compound rectifier excitation driving motor according to claim 1, it is characterised in that: the center of circle of the rivet circular hole is same
On one circumference.
5. compound rectifier excitation driving motor according to claim 1, it is characterised in that: the diameter of the rivet circular hole is greater than
The diameter of screw (7), the distance of the convex grade internal diameter of the outer span of rivet circular hole are 1-3mm.
6. compound rectifier excitation driving motor according to claim 1, it is characterised in that: screw (7) bottom end and iron riveting
Nail (8) is connected, and screw (7) center line intersects with iron rivet (8) center line.
7. compound rectifier excitation driving motor according to claim 1, it is characterised in that: wound in the convex grade of each T-type
Electrical excitation winding (10) equal turn numbers.
8. compound rectifier excitation driving motor according to claim 1, it is characterised in that: the electrical excitation winding (10) is passed through
After electric current, electrical excitation winding (10) polarity of convex surface side in convex grade is identical as the polarity of tile permanent-magnet steel convex surface side.
9. compound rectifier excitation driving motor according to claim 1, it is characterised in that: be coated with outside the stator (3)
Casing (4), (4) first side of casing are equipped with drive end bearing bracket (11), and second side of casing (4) is equipped with rear end cap (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822248474.4U CN209358309U (en) | 2018-12-29 | 2018-12-29 | Compound rectifier excitation driving motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822248474.4U CN209358309U (en) | 2018-12-29 | 2018-12-29 | Compound rectifier excitation driving motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209358309U true CN209358309U (en) | 2019-09-06 |
Family
ID=67801678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822248474.4U Active CN209358309U (en) | 2018-12-29 | 2018-12-29 | Compound rectifier excitation driving motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209358309U (en) |
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2018
- 2018-12-29 CN CN201822248474.4U patent/CN209358309U/en active Active
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