CN102223033A

CN102223033A - Generator for range extender of electric vehicle

Info

Publication number: CN102223033A
Application number: CN201110140800XA
Authority: CN
Inventors: 张学义; 史立伟
Original assignee: Shandong University of Technology
Current assignee: Shandong University of Technology
Priority date: 2011-05-27
Filing date: 2011-05-27
Publication date: 2011-10-19

Abstract

The invention provides a generator for a range extender of an electric vehicle, belonging to the technical field of vehicle generator and electrical equipment. The generator is composed of a rotor, an inner stator, an outer stator and a stator shell, wherein the generator is arranged between an engine body and a flywheel, the inner stator and the outer stator share the same stator shell, the inner stator is pressed and mounted on the axle of a centre hole of the stator shell, the outer stator is pressed and mounted on the inner side of the stator shell, the stator shell is fixed on the engine body with a bolt, the magnetic steel of the inner rotor and the magnetic steel of the outer rotor share the same rotor core, the rotor core is fixed on the flywheel with a bolt, and the flywheel is fixed on a crankshaft with a nut. The generator takes fully use of the space between the engine body and the flywheel and has the advantages of compact structure, small size and is safe and reliable to use.

Description

Electric automobile distance increasing unit generator

Technical field

The invention provides a kind of electric automobile distance increasing unit generator, belong to the electric motor of automobile technical field of electric appliances.

Background technology

Though pure electric automobile has the advantage of energy-saving and environmental protection, zero discharge, continual mileage is limited, and before the no show destination, the electric energy of storage battery is if exhaust, and electric automobile just can not advance, and at this moment storage battery is badly in need of electric energy supplement.A kind of engine and the integrated generating set of generator---distance increasing unit by high efficiency, low emission, the accumulators electric energy supplement solves the short problem of pure electric automobile continual mileage fast.The bottleneck problem of restriction distance increasing unit extensive use is the generator that lacks high efficiency, high reliability, output voltage stabilization, and generator present and that automobile accessories use, it is little that ubiquity power output, and generating efficiency is low, can not satisfy user's instructions for use.Patent of invention as Chinese patent communique bulletin in 8 days Augusts calendar year 2001: voltage stabilization permanent magneto generator, application number: 00 1 12053.0, by casing, support, line shaft, rotor, permanent magnetic steel, stator, stator winding, stator seat, the stator slip cap, balancing spring, anti-rotation attachment screw, sliding shoe, regulate rotating shaft, location bearing, regulate compositions such as rotating shaft driving mechanism and automatic feedback control circuit, power rotation axis is fixed on the support by location bearing, rotor is fixed on the power rotation axis, one end of stator slip cap is fixed on the support, have groove on the stator slip cap vertically, balancing spring is arranged in the stator slip cap, one end of this spring is stopped by an end face of stator slip cap, other end ejection places the sliding shoe in the stator slip cap, fixedly connected by the anti-rotation attachment screw that passes the slip cap groove between this sliding shoe and the stator seat, this sliding shoe center is screw thread with an end of regulating rotating shaft and flexibly connects, the detection signal input of automatic feedback control circuit is connected to the stator winding output, and the control signal output ends of this circuit is connected to the controlled terminal of driving mechanism.This voltage stabilization permanent magneto generator complex structure, the cost height, its serviceability needs further improvement.

Summary of the invention

The purpose of this invention is to provide and a kind ofly can overcome above-mentioned defective, make full use of the space between engine body and the flywheel, compact conformation, it is little to take up space, safe and reliable electric automobile distance increasing unit generator, its technology contents is:

The electric automobile distance increasing unit is made up of rotor, internal stator, external stator, stator case with generator, be installed between engine body and the flywheel, internal stator and external stator all are fixed on the same stator case, stator case is by being bolted on the engine body, and internal rotor magnet steel and external rotor magnet steel all are fixed on same rotor core;

Internal stator is made up of inner-stator iron core and internal stator armature winding, and inner-stator iron core is fitted on the centre hole axis of stator case, and internal stator armature winding is wrapped on the stator tooth of inner-stator iron core, the equal turn numbers on each stator tooth;

External stator is made up of external stator core and external stator armature winding, and external stator core is fitted in the inboard of stator case, and external stator armature winding is wrapped on the stator tooth of external stator core, the equal turn numbers on each stator tooth;

Rotor is by the internal rotor magnet steel, the internal rotor screw, the external rotor magnet steel, external rotor screw and rotor core are formed, rotor magnetic steel magnetizes by radial direction, the internal rotor magnet steel is the N utmost point by concave surface, the extremely spaced mode of S is fixed on the inboard of rotor core successively by the internal rotor screw, the external rotor magnet steel is the N utmost point by convex surface, the extremely spaced mode of S is fixed on the periphery of rotor core successively by the external rotor screw, rotor core is by being bolted on the flywheel, flywheel is fixed on the bent axle by nut, flywheel rotates with bent axle, bent axle passes the centre bore of stator case, between the centre bore of bent axle and stator case certain clearance is arranged, both can relatively rotate.

Operation principle is: when engine operation, bent axle drives flywheel and rotates, and flywheel drives the generator amature that is fixed on the flywheel and rotates, the magnetic field rotation, the armature winding cutting magnetic line produces electromotive force, powers or charge a battery for the power consumption equipment of electric automobile.

The present invention compared with prior art, generator adopts the shared inboard of inside and outside two stators, the outside that the rotor of magnet steel all is installed, made full use of the space between engine body and the flywheel, compact conformation, easy for installation, reliable operation, and this generator amature is the Nd-Fe-B permanent magnetic rotor, and it is low not have electric excitation winding, non-carbonate slip ring structure, failure rate, and power consumption is few, the power factor height can be widely used in electric automobile distance increasing unit generator.

Description of drawings

Fig. 1 is the structural representation of the embodiment of the invention;

Fig. 2 is the profile of the embodiment of the invention.

Embodiment

Among the embodiment: 1. engine body; 2. bolt; 3. stator case; 4. external stator core; 5. external rotor screw; 6. external rotor magnet steel; 7. flywheel; 8. internal rotor screw; 9. internal rotor magnet steel; 10. inner-stator iron core; 11. rotor core; 12. bolt; 13. bent axle; 14. nut; 15. external stator armature winding; 16. internal stator armature winding

The invention will be further described below in conjunction with accompanying drawing:

The electric automobile distance increasing unit is made up of rotor, internal stator, external stator, stator case 3 with generator, be installed between engine body 1 and the flywheel 7, internal stator and external stator all are fixed on the same stator case 3, stator case 3 is fixed on the engine body 1 by bolt 2, and internal rotor magnet steel 9 and external rotor magnet steel 6 all are fixed on same rotor core 11;

Internal stator is made up of inner-stator iron core 10 and internal stator armature winding 16, and inner-stator iron core 10 is fitted on the centre hole axis of stator case 3, and internal stator armature winding 16 is wrapped on the stator tooth of inner-stator iron core 10, the equal turn numbers on each stator tooth;

External stator is made up of external stator core 4 and external stator armature winding 15, and external stator core 4 is fitted in the inboard of stator case 3, and external stator armature winding 15 is wrapped on the stator tooth of external stator core 4, the equal turn numbers on each stator tooth;

Rotor is by internal rotor magnet steel 9, internal rotor screw 8, external rotor magnet steel 6, external rotor screw 5 and rotor core 11 are formed, rotor magnetic steel magnetizes by radial direction, internal rotor magnet steel 9 is the N utmost point by concave surface, the extremely spaced mode of S is fixed on the inboard of rotor core 11 successively by internal rotor screw 8, external rotor magnet steel 6 is the N utmost point by convex surface, the extremely spaced mode of S is fixed on the periphery of rotor core 11 successively by external rotor screw 5, rotor core 11 is fixed on the flywheel 7 by bolt 12, flywheel 7 is fixed on the bent axle 13 by nut 14, flywheel 7 rotates with bent axle 13, bent axle 13 passes the centre bore of stator case 3, between the centre bore of bent axle 13 and stator case 3 certain clearance is arranged, both can relatively rotate.

Claims

1. electric automobile distance increasing unit generator, form by rotor, internal stator, external stator, stator case (3), it is characterized in that: the electric automobile distance increasing unit is installed between engine body (1) and the flywheel (7) with generator, internal stator and external stator all are fixed on the same stator case (3), stator case (3) is fixed on the engine body (1) by bolt (2), and internal rotor magnet steel (9) and external rotor magnet steel (6) all are fixed on same rotor core (11);

Internal stator is made up of inner-stator iron core (10) and internal stator armature winding (16), inner-stator iron core (10) is fitted on the centre hole axis of stator case (3), internal stator armature winding (16) is wrapped on the stator tooth of inner-stator iron core (10), the equal turn numbers on each stator tooth;

External stator is made up of external stator core (4) and external stator armature winding (15), external stator core (4) is fitted in the inboard of stator case (3), external stator armature winding (15) is wrapped on the stator tooth of external stator core (4), the equal turn numbers on each stator tooth;

Rotor is by internal rotor magnet steel (9), internal rotor screw (8), external rotor magnet steel (6), external rotor screw (5) and rotor core (11) are formed, rotor magnetic steel magnetizes by radial direction, internal rotor magnet steel (9) is the N utmost point by concave surface, the extremely spaced mode of S is fixed on the inboard of rotor core (11) successively by internal rotor screw (8), external rotor magnet steel (6) is the N utmost point by convex surface, the extremely spaced mode of S is fixed on the periphery of rotor core (11) successively by external rotor screw (5), rotor core (11) is fixed on the flywheel (7) by bolt (12), flywheel (7) is fixed on the bent axle (13) by nut (14), flywheel (7) rotates with bent axle (13), bent axle (13) passes the centre bore of stator case (3), between the centre bore of bent axle (13) and stator case (3) certain clearance is arranged, both can relatively rotate.