CN2211672Y

CN2211672Y - Constant voltage generator

Info

Publication number: CN2211672Y
Application number: CN 94222752
Authority: CN
Inventors: 李智田
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-10-12
Filing date: 1994-10-12
Publication date: 1995-11-01
Anticipated expiration: 2004-10-12

Abstract

The utility model discloses a constant voltage generator, which is provided with a high-voltage winding which can supply the power for an excitation winding; the positive electrode of the excitation winding is divided into two paths: one path is connected with the excitation winding, and the other path is connected with an electronic voltage regulator. The electronic voltage regulator is connected with an armature winding; the negative pole of the armature winding is connected with the negative pole of the high-voltage winding; the negative pole of the excitation winding is connected with the electronic voltage regulator; the middle of the excitation winding is provided with a shaft head which is connected with a voltage-regulating winding which has opposite winding direction with the shaft head, and the voltage-regulating winding is also connected with the electronic voltage regulator. The constant voltage generator which is suitable for motor-driven vehicles without accumulators has the advantage of reliable performance.

Description

Constant voltage generator

The utility model relates to a kind of generator, is a kind of not with the constant voltage generator of the motor vehicle of storage battery specifically.

General alternator for vehicle is that engine drives its rotary electrification, when very high or load does not obviously diminish with the rotating speed of the motor vehicle of storage battery, voltage surpasses rated voltage, and existing generator can not very fast adjusting make it to reach rated voltage, causes and burns power device.

It is a kind of not with the constant voltage generator of the automobile-use of storage battery that the purpose of this utility model is to provide, and makes it when high engine speeds rotation and load variations are big, can be effectively, quick adjustment voltage is to rated value, reaches the purpose that makes output voltage stabilization.

The technical solution of the utility model is as follows:

This generator has a high pressure winding for the excitation winding power supply, the positive pole of this winding divides two-way one tunnel to connect excitation winding, another Lu Lianyi electronic voltage controller, electronic voltage controller connects armature winding, the negative pole of armature winding connects the negative pole of high pressure winding, the negative pole of excitation winding connects electronic voltage controller, and the centre of this winding has a tap to connect one around in contrast pressure regulation winding, and this pressure regulation winding also connects electronic voltage controller.When engine revolution is low, the electric current that the high pressure winding of Duoing than the excitation winding number of turn utilizes remanent magnetism to produce is powered for excitation winding, electric current one route high pressure winding, electronic voltage controller be to the loop negative pole, the induced current that another route high pressure winding, excitation winding add excitation winding itself through electronic voltage controller to the loop negative pole; No current is interrupted in the loop that electronic voltage controller is attached thereto the pressure regulation winding; When engine revolution height and load obviously diminish, generator output voltage is higher than rated voltage, electronic voltage controller makes high pressure winding, electronic voltage controller to loop negative pole reach by high pressure winding, excitation winding, disconnect through the loop of electronic voltage controller to the loop negative pole, just there is electric current in positive best tap, pressure regulation winding to the electronic voltage controller loop of excitation winding, the reverse magnetic field of remanent magnetism of pressure regulation winding generation at this moment and excitation winding, offset its remanent magnetism rapidly, make voltage reach rated value; Repeat the last course of work after reaching rated value.

Preferred version of the present utility model is: the high pressure winding L ₁Through rectifier D ₁～D ₄Two-way is divided in the back, and one the tunnel through resistance R ₄Diode D ₁₁Triode BG ₁Base stage, the negative pole that emitter takes back the road, another road is through excitation winding L ₃L ₄Triode BG ₁Collector electrode, emitter receive the loop negative pole; Armature winding L ₂Negative pole connect the negative pole of high pressure winding, armature winding L ₂Through rectifier D ₅～D ₈And R ₁Connect voltage stabilizing didoe D ₉, D ₉Positive pole connect two controllable silicon SCR respectively ₁SCR ₂The control utmost point, SCR ₁Anode meet diode D ₁₁Positive pole, negative electrode inserts loop negative pole, SCR ₂Anode connect around to L ₃Its many pressure regulation winding L of opposite turn ratio ₅, it inserts excitation winding L ₃L ₄Between tap, SCR ₂Negative electrode also insert the loop negative pole; When the output voltage of generator is less than or equal to rated voltage, voltage stabilizing didoe D ₉Not conducting, SCR ₁SCR ₂The also not conducting of control utmost point no-voltage, electric current is by the high pressure winding L ₁Through rectifier D ₁～D ₄After, the one tunnel through R ₄D ₁₁BG ₁Base stage, emitter to the negative pole in loop, another road is through excitation winding L ₃L ₄BG ₁Collector electrode, emitter to the loop negative pole; When output voltage was higher than rated voltage, voltage stabilizing didoe was breakdown, controllable silicon SCR ₁SCR ₂Because of the control utmost point has positive voltage conducting, SCR ₁Conducting makes D ₁₁Electric current diminish triode BG ₁Because of reaching operating voltage, base stage do not end SCR ₂Conducting, the pressure regulation winding L that its anode is connected ₅Produce magnetic field and compare L ₃Strong and the opposite magnetic field of direction is offset its remanent magnetism rapidly, until reaching rated voltage.

Advantage of the present utility model is: owing to there is the high pressure winding to power to excitation winding, power generation performance was good when its engine speed was low; Owing to the pressure regulation winding is arranged under the bigger situation of engine revolution and load variations, export stable rated voltage, voltage regulation performance is reliable.

Fig. 1 is the utility model block diagram;

Fig. 2 is the utility model embodiment circuit theory diagrams.

The utility model is described in further detail below in conjunction with accompanying drawing.

As seen from Figure 1, Figure 2, high pressure winding L ₁Through silicon rectifier D ₁～D ₄Two-way is divided in the back, and one the tunnel through resistance R ₄Diode D ₁₁Triode BG ₁Base stage, the negative pole that emitter takes back the road, another road is through excitation winding L ₃L ₄, triode BG ₁Collector electrode, emitter receive the loop negative pole; Armature winding L ₂Negative pole connect the negative pole of high pressure winding, armature winding L ₂Through rectifier D ₅～D ₈And resistance R ₁Connect voltage stabilizing didoe D ₉, D ₉Positive pole connect two controllable silicon SCR respectively ₁SCR ₂The control utmost point, SCR ₁Anode meet diode D ₁₁Positive pole, negative electrode takes back road negative pole, SCR ₂Anode connect around to L ₃Its many pressure regulation winding L of opposite turn ratio ₅, it inserts excitation winding L ₃L ₄Between tap, SCR ₂Negative electrode also insert the loop negative pole; R ₁R ₂Be divider resistance, R ₅D ₁₀Be overcurrent protector, D ₁₂Can absorb triode by the time inverse peak voltage.When the output voltage of generator is less than or equal to rated voltage, voltage stabilizing didoe D ₉Not conducting, SCR ₁SCR ₂The also not conducting of control utmost point no-voltage, electric current is by the high pressure winding L ₁Through rectifier D ₁-D ₄After, the one tunnel through R ₄D ₁₁BG ₁Base stage, emitter to the negative pole in loop, another road is through excitation winding L ₃L ₄BG ₁Collector electrode, emitter to the loop negative pole; When output voltage was higher than rated voltage, voltage stabilizing didoe was breakdown, controllable silicon SCR ₁SCR ₂Because of the control utmost point has positive voltage conducting, SCR ₁Conducting makes D ₁₁Electric current diminish triode BG ₁Because of reaching operating voltage, base stage do not end SCR ₂Conducting, make that its anode connects with excitation winding L ₃Around to opposite, the number of turn than its many pressure regulation winding L ₅Produce and L ₃L is offset in opposite magnetic field rapidly ₃Remanent magnetism, SCR ₁SCR ₂End near zero the time at voltage, voltage is given birth to height conducting again, until reaching rated voltage.

Claims

1, a kind of constant voltage generator, it is characterized in that: it has a high pressure winding for the excitation winding power supply, the positive pole of this winding divides two-way one tunnel to connect excitation winding, another Lu Lianyi electronic voltage controller, electronic voltage controller connects armature winding, and the negative pole of armature winding connects the negative pole of high pressure winding, and the negative pole of excitation winding connects electronic voltage controller, the centre of this winding has a tap to connect one around in contrast pressure regulation winding, and this pressure regulation winding also connects electronic voltage controller; When engine revolution is low, the electric current that the high pressure winding of Duoing than the excitation winding number of turn utilizes remanent magnetism to produce is powered for excitation winding, electric current one route high pressure winding, electronic voltage controller be to the loop negative pole, the induced current that another route high pressure winding, excitation winding add excitation winding itself through electronic voltage controller to the loop negative pole; No current is interrupted in the loop that electronic voltage controller is attached thereto the pressure regulation winding; When engine revolution height and load obviously diminish, generator output voltage is higher than rated voltage, electronic voltage controller makes high pressure winding, electronic voltage controller to loop negative pole reach by high pressure winding, excitation winding, disconnect through the loop of electronic voltage controller to the loop negative pole, just there is electric current in positive best tap, pressure regulation winding to the electronic voltage controller loop of excitation winding, the reverse magnetic field of remanent magnetism of pressure regulation winding generation at this moment and excitation winding, offset its remanent magnetism rapidly, make voltage reach rated value; Repeat the last course of work after reaching rated value.

2, according to the described constant voltage generator of claim 1, it is characterized in that: its preferred version is: the high pressure winding L ₁Through rectifier D ₁-D ₄Two-way is divided in the back, and one the tunnel through resistance R ₄, diode D ₁₁, triode BG ₁Base stage, the negative pole that emitter takes back the road, another road is through excitation winding L ₃L ₄Triode BG ₁Collector electrode, emitter receive the loop negative pole; Armature winding L ₂Negative pole connect the negative pole of high pressure winding, armature winding L ₂Through rectifier D ₅-D ₈And R ₁Connect voltage stabilizing didoe D ₉, D ₉Positive pole connect two controllable silicon SCR respectively ₁SCR ₂The control utmost point, SCR ₁Anode meet diode D ₁₁Positive pole, negative electrode inserts loop negative pole, SCR ₂Anode connect around to L ₃Its many pressure regulation winding L of opposite turn ratio ₅, it inserts excitation winding L ₃L ₄Between tap, SCR ₂Negative electrode also insert the loop negative pole; When the output voltage of generator is less than or equal to rated voltage, voltage stabilizing didoe D ₉Not conducting, controllable silicon SCR ₁SCR ₂Because of its control utmost point does not have yet not conducting of positive voltage, electric current is by the high pressure winding L ₁Through rectifier D ₁-D ₄After, the one tunnel through R ₄D ₁₁BG ₁Base stage, emitter to the negative pole in loop, another road is through excitation winding L ₃L ₄BG ₁Collector electrode, emitter to the loop negative pole; When output voltage was higher than rated voltage, voltage stabilizing didoe was breakdown, controllable silicon SCR ₁SCR ₂Because of the control utmost point has positive voltage conducting, SCR ₁Conducting makes D ₁₁Electric current diminish triode BG ₁Because of reaching operating voltage, base stage do not end SCR ₂Conducting, the pressure regulation winding L that its anode is connected ₅L is compared in generation ₃Strong and the opposite magnetic field of direction is offset its remanent magnetism rapidly, until reaching rated voltage.