CN2632933Y

CN2632933Y - Unitary starting power generator

Info

Publication number: CN2632933Y
Application number: CN 03267745
Authority: CN
Inventors: 张家业; 唐修钢
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-07-21
Filing date: 2003-07-21
Publication date: 2004-08-11
Anticipated expiration: 2013-07-21

Abstract

The utility model relates to an integrated starting generator, comprising a stator and a rotor; wherein, the stator is arranged on a cylinder body at the tail part, while the stator matching with the rotor is a permanent magnetic body and directly fixed at the tail part of a crankshaft; and the three phase winding of the stator can be controlled by an electronic switch device to generate the rotating magnetic field for driving the rotor in order to start up the generator; and at the same time, the three phase winding is connected with a fairing device; after starting up the generator, the three phase winding cuts the electric current produced by the magnetic force line of the rotor, namely sending the electric current to the fairing device to be commutated and put out, thus realizing the function of a generator. The utility model can be removed the bearing and driving belt by using the bearing function of the crankshaft, thus eliminating the abrasion problem to the bearing and belt; moreover, the utility model is removed the carbon brush; by doing so the startup noise is reduced, but the generating capacity is improved; and the voltage range is expanded, in particular the starter and the generator are basically exempted from regular maintenance.

Description

Incorporate starter-generator

Technical field:

The utility model relates to automobile technical field, especially a kind of integrated starter-generator that starter and generator are united two into one.

Background technology:

Automobile is being played the part of very important role in daily life, each automobile production and R﹠D institution have carried out a large amount of improvement for improving automotive performance to its internal structure.But even to this day, the structure of automotive interior still exists a lot of unsatisfactory place.With seen in the market various automobiles, its starter and generator all are to be provided with separately and separately, and wherein, starter links to each other with an end of engine, and the other end of engine then links to each other with generator by belt.This traditional structure following points defective: (1), take a large amount of spaces is difficult to microminiaturization; (2), starter adopt tape starting Magnetic sucking switch and bearing the brush direct current machine arranged, start that noise is big, serious wear and need often to safeguard; (3), the block bearing and the carbon brush of generator be easy to wear, need often to safeguard; (4), engine uses the bel-drivenn mode to drive generator, vibration is big, stability is not good and the belt wearing and tearing are severe, has reduced engine power to a certain extent.

Summary of the invention:

The purpose of this utility model just is to provide at the deficiencies in the prior art part a kind of incorporate starter-generator of cancelling bearing, belt and carbon brush, starter and generator being united two into one.

For achieving the above object, the utility model includes stator and rotor, and described stator is fixed in by the stator jockey on the cylinder body of engine afterbody, and the rotor that cooperates with stator is a permanent magnet, and directly is fixed on the afterbody of the bent axle of engine; Stator is three-phase (A phase, a B phase and C phase) winding, and this three phase winding (A phase, B phase and C phase) is connected with electronic switching device, and can produce the rotating magnetic field that drives rotor by the control of electronic switching device in stator, to pilot engine; Simultaneously, described three phase windings (A phase, B phase and C phase) are connected with rectifying device again; After engine start, electronic switching device is closed, and the electric current that three phase windings (A phase, B phase and C phase) the cutting rotor magnetic line of force is produced is promptly delivered to rectifying device and carried out rectification output.

Described electronic switching device mainly is made up of starter relay, cpu controller, several parts of transistor circuit unit, wherein, cpu controller is connected with external power supply by the normally opened contact of starter relay, simultaneously, cpu controller is connected with the transistor circuit unit by middle circuit again, controlling the conducting order of its each triode, the output of each triode of transistor circuit unit then respectively with three phase windings of stator (A mutually, B mutually and C be connected); Described rectifying device is the controlled rectification controller, the normally-closed contact of this controlled rectification controller by starter relay and three phase windings of stator (A mutually, B mutually and the C phase) connection.

After adopting technique scheme:, thereby eliminated the wear problem of bearing and belt because rotor that the utility model is used starting-generating and stator arrangement in the bent axle afterbody of engine, can utilize the supporting role of bent axle and cancel bearing and driving belt; In addition, rotor is a permanent magnet, has cancelled carbon brush, utilizes the brushless dc machine technology, but and the state exchange that makes the startup/generating of the utility model automatic synchronization of the control by electronic switching device.Both reduced cranking noise, improved energy output, widened voltage range, starter and generator are removed from substantially needs the often trouble of maintenance.

Description of drawings:

Below in conjunction with accompanying drawing the utility model is described further:

Accompanying drawing 1 is a structural representation of the present utility model

Accompanying drawing 2 is circuit theory diagrams of the present utility model

Accompanying drawing 3A～accompanying drawing 3F is that three-phase stator winding is at difference electromagnetic field schematic diagram constantly

Embodiment:

The following stated only is a specific embodiment of the utility model, does not therefore limit protection range of the present utility model.

See shown in accompanying drawing 1 and the accompanying drawing 2, the utility model includes: stator 10 and rotor 20, described stator 10 is fixed on the cylinder body 110 of engine 100 afterbodys by the stator jockey 11 that is made of two

connectors

111 and 112, the rotor that cooperates with stator 10 20 is made by permanent magnet, and directly is fixed on the afterbody of the bent axle 120 of engine 100 by screw.

The basic parameter of stator 10 is as follows: the number of phases: 3 (A, B, C); Number of stator slots: 48; The mode of connection: double-deck lap wound wiring; Every phase coil group number: 16 (series connection); Coil turn: 6; Span: 1 strides 4.

This three phase winding (A phase, B phase and C phase) is connected with electronic switching device 30, and can produce the rotating magnetic field that drives rotor 20 by the control of electronic switching device 30 in stator 10, to pilot engine 100; Simultaneously, described three phase windings (A phase, B phase and C phase) are connected with rectifying device 40 again; After engine 100 startings, electronic switching device 30 is closed, and the electric current that three phase windings (A phase, B phase and C phase) cutting rotor 20 magnetic lines of force are produced is promptly delivered to rectifying device 40 and carried out rectification output.

Described electronic switching device 30 is mainly by starter relay 31, cpu controller 32, transistor circuit unit more than 33 parts are formed, wherein, cpu controller 32 by starter relay J31 normally opened contact J1 and external power supply (as storage battery, voltage can be 12V, 24V, 36V and 42V) be connected, simultaneously, cpu controller 32 is connected with transistor circuit unit 33 by middle circuit again, controlling the conducting order of its each triode (1～6), then (A mutually with three phase windings of stator 10 respectively for the output of each triode (1～6) of transistor circuit unit 33, B phase and C are connected); Described rectifying device 40 is the controlled rectification controller, the normally-closed contact of this controlled rectification controller by starter relay and three phase windings of stator 10 (A mutually, B mutually and the C phase) connection.

Brief description operation principle of the present utility model once, when the utility model is done the starter use, have identical structure and operation principle with DC Brushless Motor, after normally opened contact J1 conducting by starting switch 311 control starter relay J31, cpu controller 32 gets electric work, it is by control stator winding A phase, the B phase, C is according to A phase forward, B phase forward, C phase positive, A on the contrary to, B is on the contrary to the rotation conducting mutually anti-phase with C, thereby in stator 10, produce " rotation " magnetic field, drive rotor 20 work, because rotor 20 is fixed together with the bent axle 120 of engine 100, therefore, bent axle 120 drives piston ring and moves reciprocatingly in cylinder block, gasoline or diesel oil gas in the compression cylinder make the engine ignition starting.Its concrete workflow is:

(a) .CPU controller 32 control triodes (Darlington transistor) 3 and 6 conductings, 1,2,4 and 5 pipes turn-off, and A switches on mutually in the stator coil, produces the electromagnetic field shown in accompanying drawing 3A.

(b) .2,3,4,6 pipes turn-off, 1,5 pipe conductings, and B phase forward energising in the stator coil, this moment, stator coil produced the electromagnetic field shown in accompanying drawing 3B, and this electromagnetic field and then traction rotor 20 clockwise rotate 7.5 degree.

(c) .1,3,5,6 pipes turn-off, 2,4 pipe conductings, and C phase forward energising in the stator coil, this moment, stator coil produced the electromagnetic field shown in accompanying drawing 3C, and this electromagnetic field and then traction rotor 20 rotate 7.5 degree again on the basis of last step.

(d) .2,3,5,6 pipes turn-off, the conducting of 1,4 liang of pipe, and A produces the electromagnetic field shown in accompanying drawing 3D this moment on the contrary to energising in the stator coil in the stator coil, and this electromagnetic field continues traction rotor 20 and clockwise rotates 7.5 degree.

(e) .1,3,4,5 pipes turn-off, 2 and 6 pipe conductings, and B is to reverse energising in the stator coil, and produce the electromagnetic field shown in accompanying drawing 3E this moment in the stator coil, and this electromagnetic field draws rotor 20 again and clockwise rotates 7.5 degree.

(f) .1,2,4,6 pipes turn-off, 3 and 5 pipe conductings, and C is on the contrary to energising in the stator coil, and produce the electromagnetic field shown in accompanying drawing 3F this moment in the stator coil, and this electromagnetic field draws rotor 20 again and clockwise rotates 7.5 degree.

By the above-mentioned course of work as can be seen, under the control of cpu controller 32, stator coil conducting in the following order (below be a duty cycle): A → B → C →-A →-B →-C-, conducting circulation 45 degree that will turn clockwise, promptly 1/8 enclose, 8 conductings circulations, rotor 20 rotates weeks.

When engine start finishes, starter relay J31 outage, normally opened contact J1 disconnects, its normally-closed contact J2 conducting, under the drive of the bent axle 120 of engine 100, rotor 20 rotates in stator 10, A, B in the stator 10, the magnetic line of force of C three-phase coil cutting rotor, produce alternating current (every phase phase difference is 120 degree), this three-phase alternating current is by after the full-wave rectification of controlled rectification controller, promptly export controllablely, voltage galvanic current, the device that powers on to buy car in installments use and storage battery are charged.

Claims

1. incorporate starter-generator, include: stator (10) and rotor (20), it is characterized in that: described stator (10) is fixed on the cylinder body (110) of engine (100) afterbody by stator jockey (11), the rotor (20) that cooperates with stator (10) is a permanent magnet, and directly is fixed on the afterbody of the bent axle (120) of engine (100); Stator (10) is three-phase (A phase, a B phase and C phase) winding, this three phase winding (A phase, B phase and C phase) is connected with electronic switching device (30), and can in stator (10), produce the rotating magnetic field that drives rotor (20) by the control of electronic switching device (30), to pilot engine (100); Simultaneously, described three phase windings (A phase, B phase and C phase) are connected with rectifying device (40) again; After engine (100) starting, electronic switching device (30) is closed, and three phase windings (A phase, B phase and C phase) cutting rotor (20) electric current that the magnetic line of force produced is promptly delivered to rectifying device (40) and carried out rectification output.

2. incorporate starter-generator according to claim 1, it is characterized in that: described electronic switching device (30) is mainly by starter relay (31), cpu controller (32), several parts of transistor circuit unit (33) are formed, wherein, cpu controller (32) is connected with external power supply by the normally opened contact of starter relay (31), simultaneously, cpu controller (32) is connected with transistor circuit unit (33) by middle circuit again, controlling the conducting order of its each triode, then (A mutually with three phase windings of stator (10) respectively for the output of each triode of transistor circuit unit (33), B phase and C are connected); Described rectifying device (40) is the controlled rectification controller, the normally-closed contact of this controlled rectification controller by starter relay and three phase windings of stator (10) (A mutually, B mutually and the C phase) connection.