CN201270439Y

CN201270439Y - Permanent-magnet generator used for special vehicle

Info

Publication number: CN201270439Y
Application number: CNU200820172811XU
Authority: CN
Inventors: 柳小伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-10-07
Filing date: 2008-10-07
Publication date: 2009-07-08
Anticipated expiration: 2018-10-07

Abstract

The utility model provides a permanent-magnetic generator for special vehicles, which adopts an external-stator and internal-rotor structure, each-phase armature winding in eight phase armature windings which are completely the same respectively strides through eight poles on a stator iron core to insert lines in turn, the tail ends of the armature windings are respectively connected with the input ends of eight-phase half-wave controlled rectification voltage stabilizer, the phase number is more, the frequency is low, number of turns of each-phase winding is little, synchronous reactance of the armature windings is little, and therefore, reactive power loss is little, and effective output power is big, a structure that a generator rotor is fixed on a generator crank shaft is adopted, and therefore, the consumption of middle transmission to energy is reduced, the maximum utilization ratio of energy transmitted by the generator is achieved, and the permanent-magnetic generator is particularly suitable for direct current which provides stable voltage for big-power special vehicles.

Description

Extraordinary car permanent magneto

Technical field

The utility model provides a kind of extraordinary car permanent magneto, belongs to the permanent magnet generator field.

Background technology

Along with the continuous upgrading and the self character requirement thereof of modern special purpose vehicle equipment, special purpose vehicle power consumption constantly increases, and its requirement to the mobile generator power output also constantly increases.In order to address this problem, researcher and engineers are developed various high-power generators.Comprising some permanent magnetism class generators, but these design that most unresolved power output is big, output voltage stabilization and the problem that is easy to popularize simple in structure.

As voltage stabilization permanent magneto generator as described in the Chinese patent 00112053.0, by casing, support, line shaft, rotor, permanent magnetic steel, stator, stator winding, stator seat, the stator slip cap, balancing spring, anti-rotation connecting screw, sliding shoe, regulate rotating shaft, location bearing, regulate compositions such as rotating shaft drive unit and automatic feedback control circuit, power rotation axis is fixed on the pedestal by location bearing, rotor is fixed on the fixed rotating shaft, one end of stator slip cap is fixed on the pedestal, the stator slip cap has groove vertically, in balancing spring setting and the stator slip cap, one end of this spring is stopped by an end face of stator slip cap, the other end is inferred as for the sliding shoe in the stator slip cap, there is the anti-rotation attachment screw that passes the slip cap groove fixedly connected between this sliding shoe and the stator seat, this sliding shoe center becomes the movable binding of screw thread with an end of regulating rotating shaft, the monitor signal input of automatic feedback control circuit is also borrowed and the stator winding input, and the control signal output ends of this circuit is to the controlled terminal of driving mechanism.This voltage-stabilizing permanent magnet electric machine structure complexity, cost height, serviceability await further raising.

And for example Chinese patent ZL200410011054.4 has announced that the powerful problem that provides has been provided the brushless synchronous initiation generator of a kind of internal rotor permanent magnet, but the following problem that occurs is, increasing voltage with rotating speed raises fast, and very difficult voltage stabilizing control, stable-pressure device complexity, the cost height realized.

From the world, existing invention of American-European and Japanese national and research, from the partial parameters and the function of its issue, it generally adopts drum type rotor and disk rotor structure.The disk rotor structural electromotor generally adopts double-stator structure, though efficient is considered the factors such as pulling force of two nails greater than 80% during its generator power 6KW, makes big design cost relatively more expensive.And the minimal torque of stock market's motor is 200Nm, and generator power only system effectiveness is greater than 80% when 4KW, visible generator efficiency is not very high.

Modern special purpose vehicle adopts fuel engines to drive more, and mostly mobile generator is that obtaining Conversion of energy by belt from engine is electric energy, has caused a large amount of wastes inevitably when belt transmits energy, causes that energy transformation ratio is low, power output is low.

The utility model content

The purpose of this utility model is to provide a kind of brand-new extraordinary car permanent magneto, and it is realized by following content:

This generator is characterised in that and adopts the external stator inner rotor core, comprise by rotating shaft, rotor core, permanent magnet, pole shoe, the rotor that non-magnetic conduction screw constitutes and by stator core, armature winding, the motor beam barrel, preceding shaft-cup, the stator that back shaft-cup constitutes, every phase armature winding in the eight mutually identical armature winding all strides across eight utmost points rule successively on the stator core respectively, the phase difference of above-mentioned armature winding is 45 degree, the head end of above-mentioned armature winding is connected to the cathode output end of generator, the tail end of above-mentioned armature winding connects the input of eight phase loop controllable rectification manostats respectively, form eight phase permanent magnet generatores, on epitrochanterian every permanent magnet and the stator core per eight extremely corresponding, some permanent magnets by pole shoe by non-magnetic conduction screw on rotor core, the N utmost point of adjacent permanent magnet and S interpolar are formed p-m rotor every arrangement; During the application of described extraordinary car permanent magneto in special purpose vehicle, between described generating seat in the plane and automobile engine and the flywheel, the part of shaft-cup was connected with automobile engine crankshaft before the stator rotating shaft was stretched out, the part that the back shaft-cup is stretched out in the stator rotating shaft is connected with flywheel, and engine crankshaft, generator amature and flywheel rotate synchronously; During the application of described extraordinary car permanent magneto in special purpose vehicle, described stator is fixed in the bell housing, armature winding is placed on the stator, be connected with the bent axle and the flywheel of automobile engine respectively with the front and back shaft-cup that the generator beam barrel is fixedly installed togather, beam barrel and engine crankshaft and flywheel rotate synchronously; Permanent-magnet pole is made by the NdFeB permanent magnetic material.

The advantage of the utility model comparison prior art is:

1, adopt eight phase armatures, the number of phases is many, and frequency is low, and every phase winding number of turn is few, and the armature winding synchronous reactance is little, so reactive loss is few, and effective output is big.

2, the utility model employing generator amature is fixed on the structure on the engine crankshaft, permanent magnet pole is placed on the rotor and rotates with axle, so reduced the loss of intermediate conveyor (as the belt transmission) to energy, realized the peak use rate of engine institute transmission of power, this also is the major reason that the utility model increases power output; And the position and the operation principle that have automobile current generator and engine now are that the belt that generator and engine are drawn drives, and engine drives generator operation by belt when work, caused a lot of energy dissipations.

3, the utility model adopts the NdFeB magnetic material to make rotor magnetic pole.Advantage is,

(1) NdFeB magnetic property excellence is the highest material of magnetic energy product in the present rare earth permanent magnet, make general used Ferrite Material magnetic pole ten surplus times.Cause that magnetic is strong, can reduce the use of permanent magnetic material, reduced cost, improved performance and cheap;

(2) the NdFeB magnetic material has high-coercive force with Nei Intrinsic coercive force (being respectively 850KA/m and 1980KA/m) (they be the interference of opposing magnetic and non-magnetic and keep measuring of its permanent magnetism), therefore be not subject to the interference of extraneous magnetic and non-magnetic environment factor, help to improve the reliability of system;

(3) compare with other rare earth material, the good mechanical property of NdFeB is difficult for broken.Be particularly suitable for the environment of concussion such as automobile;

(4) Curie temperature of NdFeB magnetic material is low, is 320 degrees centigrade, therefore,

A, descend with temperature, the Magnetic Induction of permanent magnet rises, and this material is more to reach very high magnetic in cold start-up;

Contained rare earth material is widely distributed and the amount of containing is big in China in B, the NdFeB magnetic material material, thereby has reduced its production cost.

4, realization braking, deceleration energy are turned one's head, and help generator and raise the efficiency

Because motor directly is connected on the engine crankshaft, so this machine can be realized the recovery of energy, has improved generating efficiency greatly.

Description of drawings

Fig. 1 is that the utility model is the structural representation of embodiment.

Embodiment

End bearing 14 nuts before 1 rear end bearing, 2 rotating shafts, 3 rear end caps, 4 eight phase loop controllable rectification manostats, 5 rotor cores, 6 permanent magnets, 7 pole shoes, 8 non-magnetic conduction screw 9 stator cores 10 electronics windings 11 front end housings 12 fans 13

Below in conjunction with accompanying drawing the utility model is done fixed step explanation:

Every phase armature winding 10 in the eight mutually identical armatures 10 all strides across eight utmost points rule successively on the stator core 9 respectively, the phase difference of above-mentioned each armature winding 10 is 45 °, the head end of above-mentioned each armature winding 10 is connected to the cathode output end of generator, the tail end of above-mentioned each armature winding 10 connects the input of eight phase loop controllable rectification manostats 4 respectively, form eight phase permanent magnet generatores, on epitrochanterian every permanent magnet 6 and the stator core 9 per eight extremely corresponding, some permanent magnets 6 are fixed on the rotor core 5 by non-magnetic conduction screw 8 by pole shoe 7, the N utmost point of adjacent permanent magnet 6 and S interpolar are every arrangement, form p-m rotor, the outer ring of rear end bearing 1 is fixedly mounted in the dead eye of rear end cap 3, in the endoporus of preceding end bearing 13, and be fixed in the rotating shaft 2 by nut 14 with fan 12, installing hole by front end housing 11 is installed in automobile on the automobile frame with permanent magnet generator, generator is installed between automobile engine and the flywheel, the part of shaft-cup was connected with automobile engine crankshaft before the stator rotating shaft was stretched out, the part that the back shaft-cup is stretched out in the stator rotating shaft is connected engine crankshaft with flywheel, generator amature and flywheel rotate synchronously; Perhaps described stator is fixed in the bell housing, armature winding is placed on the stator, is connected with the bent axle and the flywheel of automobile engine respectively with the front and back shaft-cup that the generator beam barrel is fixedly installed togather, and beam barrel and engine crankshaft and flywheel rotate synchronously.

During work, generator is followed the rotation of engine and is rotated, and outwards exports stable electric current, can directly give the vehicle mounted electric power supply, also can directly be the vehicle power charging.

Claims

1, a kind of extraordinary car permanent magneto, it is characterized in that: adopt the external stator inner rotor core, comprise by rotating shaft, rotor core, permanent magnet, pole shoe, the rotor that non-magnetic conduction screw constitutes and by stator core, armature winding, the motor beam barrel, preceding shaft-cup, the stator that back shaft-cup constitutes, it is characterized in that: the every phase armature winding in the eight mutually identical armature winding all strides across eight utmost points rule successively on the stator core respectively, the phase difference of above-mentioned armature winding is 45 degree, the head end of above-mentioned armature winding is connected to the cathode output end of generator, the tail end of above-mentioned armature winding connects the input of eight phase loop controllable rectification manostats respectively, form eight phase permanent magnet generatores, on epitrochanterian every permanent magnet and the stator core per eight extremely corresponding, some permanent magnets by pole shoe by non-magnetic conduction screw on rotor core, the N utmost point of adjacent permanent magnet and S interpolar are formed p-m rotor every arrangement.

2, the application of extraordinary according to claim 1 car permanent magneto in special purpose vehicle, it is characterized in that: between described generating seat in the plane and automobile engine and the flywheel, the part of shaft-cup was connected with automobile engine crankshaft before the stator rotating shaft was stretched out, the part that the back shaft-cup is stretched out in the stator rotating shaft is connected with flywheel, and engine crankshaft, generator amature and flywheel rotate synchronously.

3, the application of extraordinary according to claim 1 car permanent magneto in special purpose vehicle, it is characterized in that: stator is fixed in the bell housing, armature winding is placed on the stator, be connected with the bent axle and the flywheel of automobile engine respectively with the front and back shaft-cup that the generator beam barrel is fixedly installed togather, beam barrel and engine crankshaft and flywheel rotate synchronously.

4, extraordinary according to claim 1 car permanent magneto, it is characterized in that: permanent-magnet pole is made by the NdFeB permanent magnetic material.