CN202679209U

CN202679209U - Variable excitation brushless AC generator

Info

Publication number: CN202679209U
Application number: CN2012202383550U
Authority: CN
Inventors: 李慧杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-05-16
Filing date: 2012-05-16
Publication date: 2013-01-16
Anticipated expiration: 2022-05-16

Abstract

Provided is a variable excitation brushless AC generator which possesses good low, medium, high speed operation charging performance, does not need to be maintained frequently and is characterized in that the inner ring of a stator assembly fixed between a front end cover and a rear end cover is provided with a rotator assembly; a rectifier, a variable excitation and voltage regulator and a generator rotating speed sensor are fixed in a rear end of the rear end cover; first end three leads and a midpoint lead of a stator three-phase winding of the stator assembly are respectively in electric connection with four sets of rectifier diodes of the rectifier; the variable excitation and voltage regulator is respectively in electric connection with a first end lead and two tail end leads fixed to a rotator assembly double exciting winding of the rear end cover and rectifier output and exciting joint columns by joint columns and is in electric connection with the generator rotating speed sensor by a lead.

Description

Become and swash brushless AC generator

Technical field:

The utility model belongs to the technical field of the generator making of automobile power source equipment, is specifically related to a kind of change and swashs brushless AC generator.

Background technology:

At present, employed alternating current generator has two kinds on the automobile, a kind of is that the brush alternating current generator is arranged, another kind is brushless AC generator, and two kinds of alternating current generators all are mainly to be comprised of front end housing, field frame assembly, rotor assembly, rear end cap, rectifier, voltage regulator, fan and pulley disc etc.Field frame assembly is comprised of stator core and three-phase stator winding; Rotor assembly is comprised of rotor and field winding; Rectifier is by the positive element plate, negative element board, four anodal diodes of rectification, four rectification negative pole diodes, three excitation diodes and insulation connect the post plate and form, the anodal diodes of four rectifications are contained in that negative pole all is electrically connected with the positive element plate on the positive element plate, four rectification negative pole diodes are contained in all together negative element board electrical connections of positive pole on the negative element board, insulation connects whole three on the post that connects of bridge on the post plate, in whole, excitatory and output connects each one on post, and three bridges are whole to connect that the whole post that connects connects to form four groups of rectifier diodes with the positive pole of the anodal diodes of four rectifications on the positive element plate and the negative electricity of four rectification negative pole diodes on the negative element board respectively among post and one; Three excitation diodes are contained in insulation and connect that positive pole is electrically connected with three whole posts that connect of bridges respectively on the post plate, the negative pole of three excitation diodes all is electrically connected with the excitatory post that connects, the output that insulation connects on the post plate connects post with the electrical connection of positive element plate, and insulation connects the post plate and divides used outside insulated with positive element plate and negative element board.Voltage regulator have B, D+ ,-and F connect post.The front end housing buckle closure at field frame assembly front end, rear end cap buckle closure in the field frame assembly rear end with bolted together, rotor assembly is assemblied in and reaches in the forward and backward end cap in the interior ring of field frame assembly, the armature spindle front end passes fit on fan and pulley disc from front end housing, and rectifier and voltage regulator are assemblied in the inside, rear end of rear end cap.Three lead-in wires of the origin or beginning of the three-phase stator winding of field frame assembly are electrically connected with the whole post that connects of three bridges of rectifier respectively, and end and lead-in wire of mid point that three-phase stator winding is linked together are electrically connected with the whole post that connects in the rectifier; The negative element board of rectifier is fixed on and carries out bonding on the rear end cap, and the output of rectifier connects post and connects post with the B of voltage regulator and be electrically connected, and rectifier excitatory connects post and connect post with the D+ of voltage regulator and be electrically connected; Voltage regulator-connecing post carries out bonding with the rear end cap electrical connection.The installation of the field winding of rotor assembly and field winding two ends lead-in wire be electrically connected with the brush alternating current generator and brushless AC generator different, the main distinction of two kinds of alternating current generators is also just at this.There is the field winding of brush alternating current generator to be installed in the rotor, the lead-in wire at winding two ends is welded on respectively on two slip rings that insulate with armature spindle, slip ring contacts with two brushes in being contained in the rear end cap rear end, and two lead-in wires of brush connect post with the D+ of voltage regulator and F respectively and are electrically connected.The exciting curent of field winding is to contact with the epitrochanterian slip ring of rotation through brush to pass through in the rotor, brush produces spark with contacting of slip ring autocar radio installation is produced interference when making work, use the wearing and tearing between brush and the slip ring to produce loose contact because of long-term again, cause generator not generate electricity or the shakiness of generating electricity, caused and also need often maintain generator.Brushless AC generator does not have brush, field winding to be installed on the rear end cap to rotate with rotor, be stationary parts, and field winding two ends lead-in wire is directly drawn respectively and to be connect post with the D+ of voltage regulator and F and be electrically connected.Though brushless AC generator is without brush alternating current generator appeal shortcoming is arranged, but the field winding of brushless AC generator does not rotate with generator amature, just two modification spaces have been increased in the magnetic circuit, the disadvantage that makes brushless AC generator is that the low speed charging performance is poor, it is between the working speed 4000r/min-8000r/min of optimal charge performance that brushless AC generator also has a shortcoming, 8000r/min also only allows to work half an hour at most, because the magnetic field of the bigger generation of electric current that field winding passes through is slightly strong, no matter rotating speed must not be higher than 10000r/min during its work of which kind of situation, so cause the application brushless AC generator on automobile also not have the brush alternating current generator to get extensively.

Summary of the invention:

The purpose of this utility model is exactly for overcoming above deficiency, a kind of frequent maintenance that not only need not is provided, generation is disturbed little to autocar radio installation, and tick-over has extremely good charging performance, working speed is higher than 10000/min, and the change that charging performance maintains a good state swashs brushless AC generator.

The technical solution of the utility model is to realize like this, described change swashs brushless AC generator, mainly swashed by front end housing, field frame assembly, rotor assembly, change and voltage regulator, generator speed change into device, rectifier, rear end cap, fan and pulley disc and form, field frame assembly is comprised of stator core and three-phase stator winding, three-phase stator winding is star-like connection, and the number of turn of each coil of three-phase stator winding is Duoed several circles than the number of turn of each coil of brushless AC generator three-phase stator winding of present use; Rotor assembly is comprised of rotor and two field winding, two field windings are comprised of the large stream of low-resistance and two groups of coils of high resistant rill, the concrete manufacture method of two groups of coils has two kinds, a kind of is to turn to two coils with enamelled wire, the electric current that thick resistance I of wire diameter is passed through is the large streamline circle of low-resistance greatly, the electric current that the thin resistance of another wire diameter can be passed through greatly is little to be high resistant rill coil, the head end of two coils connects together and forms two groups of coils, another kind is with the thick coil of enamelled wire coiling of wire diameter, one end of the same low-resistance resistor of coil end and a high resistance resistor links to each other, the other end of two resistors is drawn with lead-in wire respectively also becomes two groups of coils, one group is that coil head end to low-resistance resistor other end lead-in wire is the large streamline circle of low-resistance, another group is that coil head end to high resistant resistor other end lead-in wire is high resistant rill coil, two field windings have three lead-in wires, one of head end, one of terminal one group of coil; Rectifier is connect the post plate and is formed by positive element plate, negative element board, four anodal diodes of rectification, four rectification negative pole diodes, three excitation diodes, insulation; The anodal diodes of four rectifications are contained in that negative pole is electrically connected with the positive element plate on the positive element plate, four rectification negative pole diodes are contained on the negative element board anodal with negative element board electrical connection, insulation connects whole three on the post that connects of bridge on the post plate, in whole, excitatory, output connects each one on post, three bridges are whole in connecing post and being connected whole connect post respectively with the positive pole of four anodal diodes of rectification on the positive element plate be connected element board on the negative electricity of four rectification negative pole diodes connect, three excitation diodes are contained in insulation and connect that positive pole is electrically connected with three whole posts that connect of bridges respectively on the post plate, the negative pole of three excitation diodes all is electrically connected with the excitatory post that connects, output connects post and is electrically connected with the positive element plate, insulation connects the post plate and divides used outside insulated with positive element plate and negative element board, the anodal diode of four rectifications on the positive element plate and four rectification negative pole diodes on the negative element board form four groups of rectifier diodes, and becoming to swash to reach on the voltage regulator has B, D+,-, FF, F connects post and lead-in wire.The front end housing buckle closure is at the field frame assembly front end, the rear end cap buckle closure in the field frame assembly rear end with bolted together, rotor assembly is assemblied in and reaches in the forward and backward end cap in the interior ring of field frame assembly, the armature spindle front end passes fit on fan and pulley disc from front end housing, the armature spindle rear end penetrates the inside, rear end cap rear end, two field windings are installed on the rear end cap, the inside, rear end cap rear end is installed with rectifier, becomes sharp voltage regulator, the generator speed transducer of reaching, and the signal rotor of generator speed transducer is fixed on the armature spindle rear end that penetrates the inside, rear end cap rear end.Three lead-in wires of the origin or beginning of the three-phase stator winding of field frame assembly are electrically connected with the whole post that connects of three bridges of rectifier respectively, and end and lead-in wire of mid point that three-phase stator winding is linked together are electrically connected with the whole post that connects in the rectifier; The head end lead-in wire of two field windings of rotor assembly connects post with the D+ that becomes sharp and voltage regulator and is electrically connected, the lead-in wire of the large streamline circle of the end of two field windings two lead-in wires low-resistance connects post with the FF that becomes sharp and voltage regulator and is electrically connected, and the lead-in wire of high resistant rill coil connects post with the F that becomes sharp and voltage regulator and is electrically connected; Become to swash and the B of voltage regulator connects post and connects post with the output of rectifier and be electrically connected, the D+ that becomes sharp and voltage regulator connects post and also is electrically connected with the excitatory post that connects of rectifier, become to swash and voltage regulator-connect post to be electrically connected with rear end cap and to carry out bonding, become and swash and the lead-in wire of voltage regulator connects with the generator speed sensor electrical; The negative element board of rectifier is fixed on and carries out bonding on the rear end cap.Become sharp brushless AC generator low, the course of work that neutralization runs up is as follows, pilot engine, engine drives to become through belt and swashs the rotation of brushless AC generator pulley disc, rotor, the signal rotor of generator speed sensor also rotates, become to swash this moment and voltage regulator receives the input of generator speed sensor is the regulation voltage level of very low tach signal and the B voltage that connects styletable lower than regulation, become to swash and voltage regulator control its FF and two of F connect post with-connect the post conducting, becoming the exciting curent that swashs brushless AC generator this moment is supplied with by storage battery, its sense of current is that storage battery+utmost point → ignition switch → charging indicator light → rectifier excitatory connects that post → change swashs and the D+ of voltage regulator connects post → bis-field windings two groups of coil → change swash and the FF of voltage regulator and F connect sharp voltage regulator-the connect post → storage battery negative pole that reaches of post → changes, two groups of coils of two field windings have exciting curent by producing magnetic field, the rotor cutting magnetic field, in the three-phase stator winding of field frame assembly, produce the three-phase alternating current induced electromotive force, four groups of rectifies of three-phase alternating current induced electromotive force four rectification negative pole diode compositions on four anodal diodes of rectification and negative element board on rectifier positive element plate connect output DC between post and negative element board by the output be electrically connected to the positive element plate, this moment, the DC voltage of output was low, the three-phase alternating current induced electromotive force produced in three-phase stator winding also connects three rectification negative pole diode rectification output DCs streams that post is electrically connected to and supplies with two field windings with three bridges are whole on three excitation diodes by rectifier and negative element board, its sense of current is that three excitation diode → rectifiers excitatory connects that post → change swashs and the D+ of voltage regulator connects post → bis-field windings two groups of coil → change swash and the FF of voltage regulator and F connect that post → changes swashs and voltage regulator-connect the negative element board of post → rectifier, and exciting curent was no longer supplied with by storage battery but was produced self-excitation by becoming sharp brushless AC generator oneself supply this moment.Low-speed running after the engine start, become the rotor of sharp brushless AC generator with the signal rotor low speed rotation of generator speed transducer, become to swash this moment and voltage regulator receives the voltage that generator speed transducer input slow-speed of revolution signal and B connect styletable and is lower than the assigned voltage regulated value, become to swash and voltage regulator control its FF and F connect post with-connect the post conducting, the exciting curent of self-excitation is arranged by producing magnetic field in two groups of coils of two field windings, the rotor cutting magnetic field, the three-phase alternating current induced electromotive force that produces in the three-phase stator winding connects between post and the negative element board the stronger direct current of output through rectifier rectification by the output of rectifier and supplies with automobile electrical equipment and use and storage battery is charged; When the voltage that connects with rectifier output that change that post is electrically connected swashs and voltage regulator B connects styletable surpasses the voltage-regulation value of regulation, become to swash and voltage regulator control its FF and two of F connect post with-connect post to turn-off, disappear without exciting curent magnetic field in two groups of coils of two field windings, the three-phase alternating current induced electromotive force that produces in the three-phase stator winding also disappears, rectifier output connects between post and the negative element board exports without direct current, rectifier output connects post and becomes and swashs and voltage regulator B connects styletable voltage and descends rapidly, when being brought down below the voltage-regulation value that becomes sharp and voltage regulator regulation, become to swash and voltage regulator control again its FF and two of F connect post with-connect the post conducting, two groups of coils of two field windings by storage battery moment for exciting curent once, produce in the three-phase stator winding three-phase alternating current induced electromotive force not only the output of self-excitation rectifier connect between post and the negative element board but also the stronger direct current of output, so repeatedly become and swash and voltage regulator is controlled its B and connect styletable and rectifier output and connect the galvanic voltage of exporting between post and the negative element board and keeping the magnitude of voltage stipulated.Compare with the brushless AC generator of present use, the number of turn that becomes each coil of three-phase stator winding that swashs brushless AC generator increases, exciting curent increases the magnetic flux density that produces and strengthens, formula E=BLV sina according to induced electromotive force, E-induced electromotive force in the formula, B-magnetic flux density, the effective length of L-straight conductor (length of three-phase stator winding enamelled wire), the three-phase alternating current induced electromotive force that produces in the three-phase stator winding increases, direct current through rectification output strengthens, so the low speed charging performance greatly improves.Engine speed is increased to the middling speed running, drive the also middling speed rotation of signal rotor that change swashs rotor and the generator speed transducer of brushless AC generator, become to swash this moment and voltage regulator receives the input of generator speed transducer is the voltage-regulation value that voltage that medium speed signal and B connect styletable is lower than regulation, become to swash and voltage regulator control its FF connect post with-connect post conducting F connect post with-connect post to turn-off, the large streamline circle of the medium and small resistance of two field windings has exciting curent by producing magnetic field, the rotor cutting magnetic field, produce the three-phase alternating current induced electromotive force in the three-phase stator winding and connect output DC between post and the negative element board through rectifier rectification by the output of rectifier, when the voltage that become to swash and voltage regulator B connects styletable surpasses the voltage-regulation value of regulation, become to swash and voltage regulator control its FF connect post with-connect post to turn-off, disappear by magnetic field without exciting curent in the large streamline circle of the little resistance of two field windings, three-phase alternating current induced electromotive force in the three-phase stator winding also disappears, rectifier output connects between post and the negative element board exports without direct current, become to swash and voltage regulator B connects styletable voltage and descends rapidly, when being brought down below the voltage-regulation value of regulation, become to swash and voltage regulator control its FF connect post with-connect the post conducting, in the large streamline circle of the little resistance of two field windings by storage battery moment for exciting curent once, produce the three-phase alternating current induced electromotive force in the three-phase stator winding and supply with the output of self-excitation current rectifier through rectification and connect between post and the negative element board again output DC, so repeatedly become and swash and voltage regulator is controlled its B and connect styletable and rectifier output and connect the galvanic voltage of exporting between post and the negative element board and keeping the magnitude of voltage stipulated.Become when swashing brushless AC generator middling speed rotation work, although only have the large streamline circle of little resistance that the field weakening of exciting curent by producing arranged in two field windings, but because increasing with the speed of rotor cutting magnetic field, the number of turn of each coil of three-phase stator winding accelerates, so the direct current of output is very soaking performance or fine still, if the magnetic field that has exciting curent to pass through to produce in two groups of coils of two field windings is strong, cross the direct current that makes output strong and be unfavorable for becoming and swash and voltage regulator is regulated the dc voltage of output, cause scaling loss to become swashing and voltage regulator itself and automobile on power consumption equipment and fill and ruin storage battery.Engine speed is increased to and runs up, the signal rotor High Rotation Speed of rotor and generator speed transducer, become to swash and voltage regulator according to the high tach signal of generator speed transducer input and B connect the styletable magnitude of voltage only control F connect post with-connect the post conducting to turn-off, two groups of coils of two field windings only have in the high resistant rill coil has exciting curent to pass through to produce magnetic field, the speed that increases with the rotor cutting magnetic field because of the number of turn of each coil of three-phase stator winding is relation at a high speed, still have powerful stably direct current output so become sharp brushless AC generator, charging performance is keeping good state.

The beneficial effects of the utility model are, owing to adopt such scheme, no matter be that to be in basic, normal, high fast running work charging performance extremely good, particularly tick-over just has extremely good charging performance, greatly improve than existing brushless AC generator low speed charging performance, and working speed can also be higher than the maximal work rotating speed which kind of situation of existing brushless AC generator does not allow to be higher than 10000r/min, and charging performance still maintains a good state.Each coil turn of three-phase stator winding that the utility model becomes each the coil ratio brushless AC generator of three-phase stator winding that swashs brushless AC generator increases several circles, the field winding of brushless AC generator is comprised of one group of coil, becomes to swash two field windings that brushless AC generator is comprised of the large stream of low-resistance and two groups of coils of high resistant rill; Become the inside, sharp brushless AC generator rear end cap rear end the generator speed transducer is installed; The voltage regulator of brushless AC generator is only regulated generator output voltage by control exciting curent break-make, the change that become to swash brushless AC generator swashs and voltage regulator not only can be controlled the exciting curent break-make generator output voltage is regulated, can also be that the large stream of low-resistance and two groups of coils of high resistant rill have exciting curent to pass through in low-speed running work according to the large stream of low-resistance and two groups of coils of high resistant rill of the two field windings of tach signal control of the generator speed transducer that is installed with input, the magnetic field intensity of the large generation of exciting curent is high, that the large streamline circle of low-resistance has exciting curent to pass through in middling speed running work, the magnetic field intensity that exciting curent reduces to produce weakens, be that high resistant rill coil has exciting curent to pass through in the work of running up, exciting curent reduces magnetic field intensity not only but also weakens.Become several circles of increase of each the coil ratio brushless AC generator of three-phase stator winding that swashs brushless AC generator, low-speed running work magnetic field intensity is high, and the induced electromotive force of generation is just high, so the low speed charging performance greatly improves.Become and swash brushless AC generator with corresponding the weakening of rising magnetic field intensity of working speed, the work charging performance of running up still maintains a good state, so working speed can be higher than the constant maximal work rotating speed 10000r/min of brushless AC generator working speed rising magnetic field intensity.

Description of drawings;

Accompanying drawing 1 is to become to swash brushless alternating-current generator structure figure.

Accompanying drawing 2 is to become the A-A cutaway view that swashs brushless AC generator accompanying drawing 1.

Accompanying drawing 3 is to become the circuit theory diagrams that swash first embodiment of brushless AC generator.

Accompanying drawing 4 is to become the circuit theory diagrams that swash second embodiment of brushless AC generator.

Figure 1. Front cover,, 2. Rear end cover,, 3. Stator assembly core,, 4 three-phase stator windings 5. Rotor,, 6. Pair excitation windings,, 7 fan,, 8. Pulley disk,, 9. rectifier,, 10. variable shock and voltage regulator,, 11. electromagnetic generator speed sensor,, 12. resistivity crowd coil 13. impedance small stream coil,, 14. positive element plate, , 15. negative element plate,, 16. insulation then column plate 17. signals rotor,, 18. rectifier cathode diode,, 19. rectifier diode anode,, 20. excitation diodes,, 21 overall pick bridge column,, 22. overall pick in the column,, 23 output connector column,, 24. excitation then columns 25.B then columns,, 26.D + pick column,, 27.FF then columns,, 28.F then columns,, 29 - pick column,, 30. leads,, 31. coil,, 32. resistivity resistor,, 33. impedance resistor,, 34. hall generator speed sensor,, 35 battery,, 36. ignition switch,, 37 charge indicator.

Embodiment

Below in conjunction with drawings and Examples the utility model is further specified.

Swash rotor assembly, fan 7, pulley disc 8, rectifier 9 that field frame assembly, rotor 5 and two field winding 6 that brushless AC generator mainly is comprised of front end housing 1, rear end cap 2, field frame assembly iron core 3 and three-phase stator winding 4 form in change shown in Figure 1, become sharp and reach voltage regulator 10, electromagnetic generator speed probe 11 forms.The field frame assembly front end buckle closure that is comprised of field frame assembly iron core 3 and three-phase stator winding 4 front end housing 1 rear end buckle closure and rear end cap 2 and be in the same place with bolted, the rotor assembly that is comprised of rotor 5 and two field winding 6 is assemblied in front end housing 1 rear end cap 2 and in the field frame assembly iron core 3 interior rings, rotor 5 axle front ends pass fit on fan 7 and pulley disc 8 from front end housing 1, rotor 5 shaft rear ends penetrate the inside, rear end cap 2 rear ends, two field windings 6 are installed on the rear end cap 2, and the inside, rear end cap 2 rear ends is installed with rectifier 9, become and swash and voltage regulator 10, electromagnetic generator speed probe 11, the signal rotor 17 of electromagnetic generator speed probe 11 is fixed on rotor 5 shaft rear ends that penetrate the inside, rear end cap 2 rear ends.Two field windings 6 are comprised of the large streamline circle 12 of low-resistance and 13 liang of groups of high resistant rill coil coil, the large streamline circle 12 of low-resistance is to form with the thick enamelled wire coiling of wire diameter, the electric current that the resistance I is passed through is large, high resistant rill coil 13 is that the enamelled wire coiling with the wire diameter choice refreshments forms, and the electric current that resistance can be passed through greatly is little.Change as shown in Figure 2 swashs brushless AC generator, rectifier 9 is by positive element plate 14, negative element board 15, insulation connects post plate 16, four anodal diodes 18 of rectification, four rectification negative pole diodes 19, three excitation diodes 20 form, the anodal diodes 18 of four rectifications are contained in that negative pole is electrically connected with positive element plate 14 on the positive element plate 14, four rectification negative pole diodes 19 are contained on the negative element board 15 anodal with negative element board 15 electrical connections, insulation connects whole 21 3 on the post that connects of bridge on the post plate 16, in the whole post 22 that connects, output connects post 23 and excitatory respectively one on the post 24 that connects, three bridges are whole in connecing post 21 and being connected whole connect post 22 respectively with the positive pole of four anodal diodes 18 of rectification on the positive element plate 14 be connected element board 15 on the negative electricity of four rectification negative pole diodes 19 connect, three excitation diodes 20 are contained in insulation and connect on the post plate 16 positive pole and be electrically connected negative poles and all be electrically connected with the excitatory post 24 that connects with the whole post 21 that connects of three bridges respectively, output connects post 23 and is electrically connected with positive element plate 14, positive element plate 14 in the above negative element board 15 insulate below and connects post plate 16 and divide used outside insulateds in the middle of being installed in positive element plate 14 and negative element board 15, bears element board 15 and carries out bonding with rear end cap 2 electrical connections.Become to swash and voltage regulator 10 be positioned at following electromagnetic generator speed probe 11 be positioned at above-be fixed on the inside, rear end cap 2 rear ends with installing, become as shown in Figure 2 swash and voltage regulator 10 have B connect post 25, D+ connect post 26, FF connect post 27, F connect post 28 ,-connect post 29 and two lead-in wires 30.

Change as shown in Figure 3 swashs brushless AC generator, in the first embodiment circuit theory diagrams, three lead-in wires of the origin or beginning of three-phase stator winding 4 are electrically connected with the whole post 21 that connects of three bridges of rectifier 9 respectively, and end and lead-in wire of mid point that three-phase stator winding 4 is linked together are electrically connected with the whole post 22 that connects in the rectifier 9; The head end of the large streamline circle 12 of the low-resistance of two field windings 6 and high resistant rill coil 13 goes between to connect together and connects post 26 electrical connections with the D+ that becomes sharp and voltage regulator 10, the end leads of the large streamline circle 12 of the low-resistance of two field windings 6 connects post 27 with the FF that becomes sharp and voltage regulator 10 and is electrically connected, and the end leads of the high resistant rill coil 13 of two field windings 6 connects post 28 with the F that becomes sharp and voltage regulator 10 and is electrically connected.Become to swash and voltage regulator 10-connecing post 29 carries out bonding, two lead-in wires 30 that become sharp and voltage regulator 10 are electrically connected with electromagnetic generator speed probe 11, become to swash and the D+ of voltage regulator 10 connects post 26 and also is electrically connected with the excitatory post 24 that connects of rectifier 9, become and swash and the B of voltage regulator 10 connects post 25 and connects post 23 with the output of rectifier 9 and be electrically connected.The output of rectifier 9 connects post 23 and also is electrically connected by the positive pole of wire with the storage battery 35 of installing on the automobile, the excitatory post 24 that connects of rectifier 9 also is electrically connected by the anodal order series winding of wire with the charging indicator light 37 on the indoor instrument of car steering, ignition switch 26 and storage battery 35, the positive pole of four rectification negative pole diodes 19 of rectifier 9 connects together and carries out bonding, and the negative pole of storage battery 35 carries out bonding.

Change as shown in Figure 4 swashs brushless AC generator, in second embodiment circuit theory diagrams, the composition of two field windings 6 and electrical connection and change swash and voltage regulator 10 with go between 30 be electrically connected be Hall-type generator speed transducer 34 different from first embodiment circuit theory diagrams shown in Figure 3 outside, the composition of all the other each several parts and electrical connection are identical with first embodiment circuit theory diagrams shown in Figure 3.Two field windings 6 of second embodiment are with the thick coil 31 of enamelled wire coiling of wire diameter, the head end lead-in wire of coil 31 connects post 26 with the D+ that becomes sharp and voltage regulator 10 and is electrically connected, the end of coil 31 is electrically connected with an end of low-resistance resistor 32 and high resistance resistor 33, low-resistance resistor 32 other ends connect post 27 to go between with the FF that becomes sharp and voltage regulator 10 and are electrically connected, and high resistance resistor 33 other ends connect post 28 to go between with the F that becomes sharp and voltage regulator 10 and are electrically connected.Coil 31, low-resistance resistor 32 and high resistance resistor 33 also form two groups of coils, one group of coil be coil 31 head ends to low-resistance resistor 32 other ends, identical with the large streamline circle of the low-resistance among the first embodiment 12.Another group coil be coil 31 head ends to high resistant resistor 33 other ends, the high resistant rill coil 13 in implementing with first is identical.The resistance of low-resistance resistor 32 and high resistance resistor 33 all only has several Europe, and two resistors can be fixed on and also can be fixed on the inside, rear end cap rear end on two field windings.Three phase terminals 30 that become sharp and voltage regulator 10 are electrically connected with Hall-type generator speed transducer 34.

Claims

1. one kind becomes sharp brushless AC generator, by front end housing (1), field frame assembly, rotor assembly, rear end cap (2), rectifier (9), fan (7) and pulley disc (8) form, field frame assembly is comprised of stator core (3) and three-phase stator winding (4), rectifier (9) is by positive element plate (14), negative element board (15), four anodal diodes (18) of rectification, four rectification negative pole diodes (19), three excitation diodes (20) and insulation connect post plate (16) and form, four anodal diodes of rectification (18) are contained in the upper negative pole of positive element plate (14) and are electrically connected with positive element plate (14), it is upper anodal with negative element board (15) electrical connection that four rectification negative pole diodes (19) are contained in negative element board (15), insulation connects whole (21) three on the post that connects of bridge on the post plate (16), in wholely connect post (22) and output and connect post (23) and excitatory each one on the post (24) that connects, three bridges are whole to connect that the whole post (22) that connects connects to form four groups of rectifier diodes with the positive pole of the anodal diodes of four rectifications (18) on the positive element plate (14) and the negative electricity of four the rectification negative pole diodes (19) on the negative element board (15) respectively among post (21) and one, three excitation diodes (20) are contained in insulation and connect the upper positive pole of post plate (16) and be electrically connected with three whole posts (21) that connect of bridges respectively, the negative pole of three excitation diodes (20) all is electrically connected with the excitatory post (24) that connects, insulation connects output on the post plate (16) and connects post (23) and be electrically connected with positive element plate (14), insulation connects post plate (16) and divides used outside insulated with positive element plate (14) and negative element board (15), front end housing (1) buckle closure is at the field frame assembly front end, rear end cap (2) buckle closure in the field frame assembly rear end with bolted together, rotor assembly is assemblied in the field frame assembly in front end housing (1) and the rear end cap (2) in the ring, the armature spindle front end passes fit on fan (7) and pulley disc (8) from front end housing (1), rectifier (9) is assemblied in the inside, rear end of rear end cap (2), three lead-in wires of the origin or beginning of the three-phase stator winding of field frame assembly (4) the respectively whole post (21) that connects of three bridges of same rectifier (9) are electrically connected, three-phase stator winding (4) link together end and one at the mid point same rectifier of lead-in wire (9) in the whole post (22) that connects be electrically connected, the negative element board (15) of rectifier (9) is fixed on upper electrical connection of rear end cap (2) and carries out bonding, the number of turn of each coil that it is characterized in that the three-phase stator winding (4) of field frame assembly increases, rotor assembly is comprised of rotor (5) and two field windings (6), two field windings (6) are comprised of the large streamline circle of low-resistance (12) and (13) two groups of coils of high resistant rill coil, two groups of coils of two field windings (6) have three lead-in wires, two groups of coil head ends connect together one, each one of two groups of coil end, two excitatory windings (6) are fixed on the rear end cap (2), also assembling in rear end cap (2) rear end to become and swashing and voltage regulator (10), the generator speed transducer, the signal rotor of generator speed transducer (17) is fixed on rotor (5) shaft rear end that penetrates the inside, rear end cap (2) rear end, becoming the sharp voltage regulator (10) that reaches has B to connect post (25), D+ connects post (26), connect post (29), FF connects post (27), F connects post 28 and lead-in wire (30), the head end lead-in wire of two field windings (6) of rotor assembly connects post (26) with the D+ that becomes sharp and voltage regulator (10) and is electrically connected, the lead-in wire of the end of two field windings (6) two lead-in wires large streamline circle of low-resistance (12) connects post (27) with the FF that becomes sharp and voltage regulator (10) and is electrically connected, the lead-in wire of high resistant rill coil (13) connects post (28) with the F that becomes sharp and voltage regulator (10) and is electrically connected, the output that change B sharp and voltage regulator (10) connects the same rectifier of post (25) (9) connects post (23) and is electrically connected, the excitatory post (24) that connects that change D+ sharp and voltage regulator (10) connects the same rectifier of post (26) (9) is electrically connected, become to swash and voltage regulator (10)-connect the same rear end cap of post (29) (2) to be electrically connected and to carry out bonding, become and swash and the lead-in wire (30) of voltage regulator (10) connects with the generator speed sensor electrical.

2. change according to claim 1 swashs brushless AC generator, two groups of coils that it is characterized in that two field windings (6) are with two coils of enamelled wire coiling, thick resistance of coil wire diameter is little to be the large streamline circle of low-resistance (12), the thin resistance of another wire diameter is high resistant rill coil (13) greatly, and the head end of two coils links together.

3. the change of telling according to claim 1 swashs brushless AC generator, two groups of coils that it is characterized in that two field windings (6) are with a coil of enamelled wire coiling (31), the terminal same low-resistance resistor of coil (31) (32) links to each other with high resistance resistor 33 1 ends, two resistor other ends are drawn with lead-in wire respectively and are become two groups of coils, the coil head end that the large streamline circle of low-resistance is coiling is to low-resistance resistor (32) other end lead-in wire, and high resistant rill coil is that coil head end to high resistant resistor (33) other end of coiling goes between.