CN1034292A - Asynchronous rectified generator - Google Patents
Asynchronous rectified generator Download PDFInfo
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- CN1034292A CN1034292A CN 88100297 CN88100297A CN1034292A CN 1034292 A CN1034292 A CN 1034292A CN 88100297 CN88100297 CN 88100297 CN 88100297 A CN88100297 A CN 88100297A CN 1034292 A CN1034292 A CN 1034292A
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- rotating speed
- voltage
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- generator
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Abstract
Asynchronous rectified generator is a kind of rotor machine.This machine is can be with the asynchronous generator of ferromagnetic solid rotor, and stator slot is laid and independently exported winding and field winding independently.Independently field winding is subjected to the control of voltage adjusting device, makes generator constant than keeping output voltage under the speed change state.This machine is brushless, low speed electrifies, and charging performance is good, is applicable on motor vehicles, the particularly automobile and uses.
Description
The invention belongs to the asynchronous generator field, relate to motor vehicles, particularly electric generators for automobile.
The synchronous rectification generator is current general automobile current generator both at home and abroad.This generator exists to be made reliability complicated, that reduced generator owing to the contact of brush and has increased shortcomings such as maintenance to generator.The brushless commutator generator of induction type belongs to the one pole machine with pulsation, and low speed generating and charging performance are poor, and it is low that rotating speed is adjusted multiple, only is suitable for minority motor vehicles vehicle and uses.
The trend of current automobile current generator requires to have that low speed electrifies and the superperformance of charging and brushless direction develop.
Though asynchronous generator is employed already to make simple, brushless, reliable advantage, must dispose the complex appts of bulky capacitor and control capacitance amount.Press the described asynchronous generator of US-02758272,, realize control, but its control device is not suitable for and wants little, the lightweight motor vehicle generator application of cube capacitance by the dc magnetizing winding of transformer group.Application number is 85106453 mobile asynchronous rectification generator, adopts little, the lightweight control device of a kind of volume, and the tail end of controlling independent field winding is adjusted the requirement of 6～8 times of multiples with the control exciting curent but this scheme is difficult to realize the automobile current generator rotating speed.
Purpose of the present invention is the advantage of utilizing asynchronous generator to have, provide a kind of dispose capacitance little, electrify and the rotating speed that charges is low, rotating speed is adjusted the used asynchronous rectified generator of multiple high motor vehicles, particularly automobile.
Characteristics of the present invention are that asynchronous rectified generator (can be ferromagnetic solid rotor) stator slot has the independent field winding that separates with the output winding, adjust multiple for the rotating speed of expanding the generator burning voltage, and field winding is by therefrom tap of rotating speed requirement; Or magnetizing capacitance is by rotating speed requirement grouping, keeps self-excitation to electrify and charges to realize that different rotating speeds is interval; Also can adjust multiple with the rotating speed that expansion is higher with the above two in conjunction with application.Realize the requirement that the interval voltage stabilizing of rotating speed was adjusted in above-mentioned minute, have the voltage adjusting device that rotating speed is selected and commutation is controlled, can divide the interval control of rotating speed exciting curent, make output voltage constant.
The exciting curent of asynchronous rectified generator is by the impedance and the decision of winding built-in potential of field winding and capacitances in series closed-loop path.Along with rotating speed increases, frequency also increases, and the capacitive reactances in the energizing loop sharply reduces, and exciting curent and armature voltage sharply rise.The demagnetizing effect of armature reaction during load, by rotor current compensation, the inductance current of the stator and rotor leakage reactance that increases with load, the capacity current that is increased by reducing of capacitive reactance is recompensed.Therefore, asynchronous rectified generator has the superperformance that low speed preferably electrifies and charges under speed change state.
Automobile current generator maximum (top) speed n
MaxWith the minimum rotation speed n that electrifies
xRatio n
Max/ n
x=K
nThe rotating speed that is called stable generator voltage is adjusted multiple.The present invention has adopted by the tapped field winding of relevant voltage, and former tail end is as the control tail end in slow-speed of revolution interval, and tap terminals is as the control tail end in high rotating speed interval; Perhaps magnetizing capacitance is divided into groups, at one group of magnetizing capacitance of the interval minimizing of high rotating speed by rotating speed; Also can be with the above two in conjunction with using to satisfy under the many situations of generator number of poles.Facts have proved, a field winding rotating speed is adjusted interval K
nIt is easy that value expands to 2～3.5 times.Press the many of generator number of poles with few, corresponding K
nGet decimal and big number, it is interval to adopt two-stage to three grade rotating speed to adjust, can be to satisfy automobile current generator K
n=(6～8) requirement doubly.
Embodiment of the present invention can further be given explanation with following accompanying drawing.
Fig. 1 is the asynchronous rectified generator that has voltage adjusting device by the present invention;
Fig. 2 is that the rotating speed among Fig. 1 is selected the circuit detail drawing;
Fig. 3 is the voltage selecting circuit detail drawing among Fig. 1;
Fig. 4 is the commutation control circuit detail drawing among Fig. 1;
Fig. 5 is the asynchronous rectified generator that voltage adjusting device adopts electric capacity grouping control rotating speed interval;
Fig. 6 overall structure sketch;
Fig. 7 is the load current speed regulation characteristic I=f(n of embodiment).
One embodiment of the invention are shown in Fig. 1.1 mu of hard gully of ㄗ of asynchronous rectified generator is fortunately bathed the northern whetstone mortar awl of ぁ and is said that the surge spectrum big shield of the ご that raises bits let out model is stupid, 4 two windings are connected by the different name end with pair winding 5 initial and ends among the figure.The head end of field winding 3 connects with magnetizing capacitance 6, afterflow electric capacity 7.The other end of afterflow electric capacity 7 is connected to the tail end of paying winding 5.The interchange end of full-wave rectifier 9 connects with the head end of Y-connected output winding 8, and cathode output end connects with voltage adjusting device 2, binding post 20, and cathode output end connects with battery terminal negative.The positive pole of storage battery is connected to key switch 18.
Be fixed on the voltage adjusting device 2 on generator 1 rear end cap, select circuit 16, feedback resistance 17 to form by 10,11, two groups of semiconductor switchs 12,13 of full-bridge rectifier, voltage selecting circuit 14, commutation control circuit 15, rotating speed.
By the asynchronous rectified generator that said apparatus is formed, when connecting key switch 18, voltage selecting circuit 14, rotating speed are selected the power connection of circuit 16, commutation control circuit 15 and storage battery 19 and full-wave rectifier 9.When generator speed is lower than predetermined value, rotating speed selection circuit 16a obtains from the head end of three-phase output winding 8 and is lower than rotating speed predetermined value correspondent frequency, output 16b, 16c export commutation input 15d, the 15c that high potential and electronegative potential send commutation control circuit 15 to respectively, make to be respectively path between voltage controling input end 15a, 15b and output 15e, the 15f and to open circuit.Voltage selecting circuit 14 is below or above predetermined value by voltage, by output 14a output electronegative potential or high potential, make output 15e output current or blocking-up electric current through voltage controling input end 15a, 15b, the semiconductor switch 12 that two high back-pressure triode emitters of control NPN, PNP are composed in series places saturated and by two states, makes the tail end of full-wave rectifier 10 dc output ends, field winding 4 place the two states that short circuit is closed or block simultaneously.When the tail end of field winding 4 was closed, the energizing loop that series excitation winding 3,4 and electric capacity 6 are formed raise voltage; Voltage descends during blocking-up.The moment of field winding 4 tail ends blocking-up, because the continuity of electric current in the inductive circuit, the head end through paying winding 5, afterflow electric capacity 7, field winding 3 becomes the closed-loop path, has reduced to produce too high instantaneous voltage when disconnecting.Afterflow electric capacity 7 has been held concurrently and has been done excitatory effect.Feedback resistance 17 plays positive feedback effect between input 15a, 15b, the output 15e of commutation control circuit 15, semiconductor switch 12, with reduce semiconductor switch 12 saturated with the snap time of carrying between ending, minimizing caloric value.Semiconductor switch adopts the effect of NPN, the series connection of PNP high countervoltage triode emitter to be to block the positive and negative high-voltage of full- wave rectifier 10,11 dc output ends and the path of outside, in order to avoid influence safety.
When rotating speed rose to predetermined value, rotating speed was selected input and the output procedure and the above-mentioned opposite states of circuit 16, commutation control circuit 15, and semiconductor switch 12 is in to carry and ends.The output 14a of voltage selecting circuit 14 is lower than by voltage by commutation control circuit 15 and is higher than predetermined value, controls the saturated of semiconductor switch 13 and only carries, to satisfy the needs of the interval voltage adjustment of high rotating speed.
Fig. 2 represents a kind of embodiment of rotating speed selection circuit 16.Input 16a three-phase output winding 8 head ends from Fig. 1 are obtained the alternating current with the rotation speed change frequency conversion, produce the AC voltage drop with frequency change on electric capacity 16c, deliver to voltage selecting circuit through the direct voltage of rectifier 16D output respective change.Voltage selecting circuit is by resistance R
1, R
2, R
3, R
4, diode D
1, D
2, voltage-stabiliser tube Z, transistor T
1, filter capacitor C forms.The one-level not circuit is by diode D
3, transistor T
2, resistance R
7, R
8Form.The secondary not circuit is by transistor T
3, resistance R
9, R
10, R
11Form.Feedback circuit is by R
5, R
12Form.
Press the circuit that said apparatus is formed, when rotating speed is lower than predetermined value, transistor T
1End, the one-level not gate is exported electronegative potential by 16c, and the secondary not gate is exported high potential by 16b; When rotating speed is higher than rated value, transistor T
1Saturated, the two-stage not gate overturns simultaneously, and 16c, 16b export high potential and electronegative potential respectively.Feedback resistance R
5, R
12Effect be to quicken the upset of two-stage not gate.
Fig. 3 represents a kind of embodiment of voltage selecting circuit 14.The part that the circuit element sequence number is identical with Fig. 2, voltage select principle also identical, only change resistance R
1With 16D connect for the connecting of positive source.This circuit is lower than by voltage and is higher than rated value, and output 14a exports electronegative potential and high potential.
Fig. 4 represent to commutate a kind of embodiment of control circuit 15.Transistor T
1, resistance R
1Form the preposition current control circuit that input 15a, 15b are subjected to voltage selecting circuit 14 controls.Transistor T
2, T
3, resistance R
2, R
3Form two groups of reversing switch circuit that input 15c, 15d are subjected to rotating-speed control circuit 16 controls.Resistance R
4, transistor T
4, T
5Form two groups of power amplification circuits.
Foregoing circuit, when rotating speed was lower than predetermined value, input 15c, 15d were in electronegative potential and high potential respectively.At this moment, transistor T
1Be in forward bias, transistor T
3Be in reverse bias, preposition current control circuit and two groups of power amplifier tube T
4, T
5Between become path and opening circuit respectively; When rotating speed was higher than predetermined value, its control procedure was opposite with the former.
Fig. 5 represents to adopt the electric capacity grouping to realize a kind of embodiment that the interval voltage of different rotating speeds is adjusted.The voltage adjusting device 2 that is fixed on generator 1 rear end cap selects circuit 31, switching circuit 32, voltage-regulating circuit 33 to form by rotating speed.The identical person with Fig. 1 of serial number among the figure, its title is also identical.The tail end of magnetizing capacitance group 30 connects with switching circuit 32, and its head end connects with the field winding head end.When rotating speed is lower than predetermined value, rotating speed selects the input of circuit 31 to obtain the alternating current of corresponding frequencies from the head end of output winding 8, output 31b exports the input 32a that the signal that is lower than the rotating speed predetermined value sends switching circuit 32 to, the tail end closure of Y-connected magnetizing capacitance 30 is to satisfy the needs that the interval voltage of the slow-speed of revolution is adjusted.Voltage-regulating circuit 33 is below or above predetermined value by voltage, makes the tail end of field winding 3 place closure or off-state, keeps constant to adjust output voltage whereby.When rotating speed was higher than predetermined value, 31b exported the input 32a that the signal that is higher than the rotating speed predetermined value sends switching circuit 32 to, and the tail end of magnetizing capacitance 30 disconnects, to satisfy the needs that the interval voltage of high rotating speed is adjusted.If it is interval to need the rotating speed of expansion more than two to adjust, the rotating speed that rotating speed selects circuit can set up respective numbers is selected the switching circuit and the Y-connected magnetizing capacitance group of output and respective numbers.
Fig. 6 is the overall structure sketch of asynchronous rectified generator.Rear end cap 21, stator 22, rotor 23, front end housing 24, fan 25, belt pulley 26 are arranged, and all the other serial number name are identical with Fig. 1.
Fig. 7 illustrates the load current speed regulation characteristic curve I=f(n of embodiment).
Be an embodiment of asynchronous rectified generator below.
Asynchronous generating acc power 0.25KW, number of poles 4 utmost points, 140 volts of field winding voltages, every phase 4 microfarads of magnetizing capacitance that triangle connects, voltage adjusting device is the embodiment of Fig. 1.
Errata
Before the capable revisal of file name page or leaf: after the revisal:
Specification 57 ... connect.This circuit is pressed ... connect the output of one-level not gate
Pressure is below or above rated value, and the road is Za, Ra and output
The low electric 14a of output 14a output.It is low that this circuit is pressed voltage
Position and high potential.In be higher than predetermined value, output
14a output electronegative potential and high
The position.
Accompanying drawing connects, R
1, R
6, R
8, Ra is connected in series, 14a with
There is not interface between 20.Za, Ra join.R
1、R
6、
R
8, interface is arranged between 20.
Claims (7)
1, a kind of asynchronous rectified generator that is used for motor vehicles, form by front end housing, stator, rotor (can be ferromagnetic solid rotor), rear end cap, rectifier, voltage adjusting device, magnetizing capacitance, it is characterized in that stator slot has the independent field winding that separates with the output winding, this winding and magnetizing capacitance are formed energizing loop, receive the control of the voltage adjusting device of rotating speed selection, adjust multiple with the rotating speed that improves the asynchronous rectified generator burning voltage;
2, by the described asynchronous rectified generator of claim 1, it is characterized in that described independent field winding, by the requirement centre tap of rotating speed and voltage, its tap terminals is as the voltage adjustment in high rotating speed interval;
3,, it is characterized in that pair winding in described independent field winding and the stator slot, external afterflow electric capacity composition closed-loop path by claim 1,2 described asynchronous rectified generators;
4,, it is characterized in that of the requirement grouping of described magnetizing capacitance, to provide each rotating speed interval required different capacitances by rotating speed by the described asynchronous rectified generator of claim 1;
5, by claim 1,2 described asynchronous rectified generators, it is characterized in that field winding by rotating speed and the tapped voltage adjusting device of voltage request, include rotating speed and select circuit, voltage selecting circuit, commutation control circuit, semiconductor switch circuit, full-wave rectifier;
6, by claim 1,4 described asynchronous rectified generators, it is characterized in that the voltage adjusting device of magnetizing capacitance by rotating speed requirement grouping, include rotating speed and select circuit, switching circuit, voltage-regulating circuit;
7, by claim 1,5 described asynchronous rectified generators, it is characterized in that the semiconductor switch circuit in the voltage adjusting device is composed in series by NPN, PNP high countervoltage triode emitter, with positive and negative current potential of blocking-up high voltage and outside path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88100297 CN1034292A (en) | 1988-01-15 | 1988-01-15 | Asynchronous rectified generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88100297 CN1034292A (en) | 1988-01-15 | 1988-01-15 | Asynchronous rectified generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1034292A true CN1034292A (en) | 1989-07-26 |
Family
ID=4831283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88100297 Pending CN1034292A (en) | 1988-01-15 | 1988-01-15 | Asynchronous rectified generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1034292A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI721020B (en) * | 2015-09-28 | 2021-03-11 | 大陸商江蘇恆瑞醫藥股份有限公司 | Anti-pd-1 antibody preparation and pharmaceutical use thereof |
-
1988
- 1988-01-15 CN CN 88100297 patent/CN1034292A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI721020B (en) * | 2015-09-28 | 2021-03-11 | 大陸商江蘇恆瑞醫藥股份有限公司 | Anti-pd-1 antibody preparation and pharmaceutical use thereof |
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |