CN2195828Y - Load voltage regulator for single-phase permanent-magnet alternating current electric generator - Google Patents

Abstract

The utility model is characterized in that a single-phase half-control rectifying circuit is composed of diodes D1, D2 and controlled silicon SCR1, SCR2; diodes D3, D4 of a resistor and R2, D6, D5 respectively provides trigger current for a control pole from the positive electrode of the controlled silicon SCR1, SCR2; the positive electrode of a constant voltage diode DW is connected with earth, and the negative electrode is connected with the negative electrodes of the diodes D3, D6 and the positive electrode of D4, D5; an electrolytic condenser C and an output end are connected in parallel; the positive electrode of the electrolytic condenser C is connected with the negative electrode of the controlled silicon SCR1, SCR2, and the negative electrode is connected with earth. The utility model which solves the problems of insufficient light of minitype motor vehicles with low speed and burning electric equipment with high speed and ensures the safety of driving at night has the advantages of simple structure, low power consumption, stable performance and high performance of stabilized voltage.

Description

Load voltage regulator for single-phase permanent-magnet alternating current electric generator

The utility model belongs to a kind of electrical equipment of cyclecar, is applicable to equipment of small motor vehicles such as motorcycle, four-wheel tractor and agricultural tricycle.

At present, at motorcycle, extensively adopt the single-phase permanent alternating current generator to come to be the power consumption equipment power supply in equipment of small motor such as four-wheel tractor and the agricultural tricycle vehicle, but because its output voltage has very big fluctuation along with the variation of generator speed, so in most of vehicles, for preventing that too high voltage from damaging power consumption equipment, the voltage of generator all designs according to the maximum working voltage that its output voltage when the maximum speed is no more than power consumption equipment, therefore, such vehicle is at night, only when running at high speed, light just can reach enough brightness, and during low speed driving, it is very dark that light becomes, so just exist the contradiction that road lamp not convenient for walking does not more work more, in addition, increase the also deepening at once of brightness of power consumption (as clicking electric horn) lamp in the process of moving, even light also can flash along with flashing of direction indicator lamp when turning, and has brought unsafe factor for the vehicle ' at night.

In view of the foregoing, the purpose of this utility model is to provide a kind of simple in structure, low in energy consumption, stable work in work and has the single-phase permanent generator loading voltage regulator of higher voltage regulation performance.

The purpose of this utility model is achieved in that whole device is by resistance R ₁, R ₂, diode D ₁, D ₂, D ₃, D ₄, D ₅, D ₆, electrochemical capacitor C, voltage stabilizing didoe D _W, controllable silicon SCR ₁, SCR ₂Form diode D ₁, D ₂And controllable silicon SCR ₁, SCR ₂Constitute the single-phase half-controlled rectification circuit, resistance R ₁, diode D ₃, D ₄And R ₂, D ₆, D ₅Respectively from controllable silicon SCR ₁, SCR ₂Anode for its control utmost point provide trigger current, voltage stabilizing didoe D _WPlus earth, negative pole connects diode D simultaneously ₃, D ₆Negative pole and D ₄, D ₅Positive pole, electrochemical capacitor C is connected in parallel on output, the anodal controllable silicon SCR that connects ₁, SCR ₂Negative electrode, minus earth.Its operation principle is: adopt single-phase half-controlled rectification circuit and capacitor filtering that the alternating current of former generator output is become direct current, directly provide trigger current for its control utmost point by resistance, diode from the controllable silicon anode, make the maximum potential of the SCR control utmost point keep stable by voltage stabilizing didoe, and utilize this maximum potential to compare with the terminal voltage on the output capacitor, make the two difference be greater than or less than the silicon controlled trigger voltage and reach the silicon controlled turn-on and turn-off.When the overtension on the output capacitor, will stop the controllable silicon conducting automatically, thus the voltage at regulating load two ends effectively.

The utility model adopts single-phase half-controlled rectification circuit and capacitor filtering that alternating current is become direct current, directly provide trigger current for its control utmost point by resistance, diode from the controllable silicon anode, and utilize the fixedly maximum potential of the SCR control utmost point of voltage stabilizing didoe, thereby regulating load both end voltage effectively.Have series of advantages such as simple in structure, low in energy consumption, stable work in work, voltage stabilizing height, light deficiency when having solved the cyclecar slow-speed of revolution effectively, the problem of burning power consumption equipment during high rotating speed has guaranteed the traffic safety at night.

Accompanying drawing 1 is the utility model circuit diagram.

Further specify the utility model and embodiment below in conjunction with accompanying drawing.

In conjunction with the accompanying drawings, the utility model is by resistance R ₁, R ₂, diode D ₁, D ₂, D ₃, D ₄, D ₅, D ₆, electrochemical capacitor C, voltage stabilizing didoe D _W, controllable silicon SCR ₁, SCR ₂Form diode D ₁, D ₂And controllable silicon SCR ₁, SCR ₂Constitute the single-phase half-controlled rectification circuit, resistance R ₁, diode D ₃, D ₄And R ₂, D ₅, D ₆Respectively from controllable silicon SCR ₁, SCR ₂Anode for its control utmost point trigger current is provided, simultaneously, D ₃, D ₆Prevent that input current is by R ₁, R ₂Directly constitute loop, D ₄, D ₅Avoided when the overtension on the output capacitor C, by voltage stabilizing didoe D _WThe controllable silicon SCR that the playback electricity causes ₁, SCR ₂The reverse breakdown of the control utmost point, voltage stabilizing didoe D _WPlus earth, negative pole connect diode D simultaneously ₃, D ₆Negative pole and D ₄, D ₅Positive pole, make controllable silicon SCR ₁, SCR ₂Control utmost point ceiling voltage keep stable, capacitor C is connected in parallel on output, its positive pole is connected controllable silicon SCR ₁, SCR ₂Negative electrode, its minus earth has played the effect of filtering, simultaneously also utilizes the peak of its terminal voltage as conditioning signal.

In implementing the utility model, should suitably increase the output voltage values of the single-phase permanent alternating current generator in the motor vehicles, make it than the slow-speed of revolution time, just can reach the rated value of motor vehicles electricity consumption equipment work voltage.Under before this, inscribing, the utility model input is connected on single-phase permanent alternating current generator output, output is connected in the load, when the difference of the terminal voltage of the output voltage of single-phase permanent alternating current generator and capacitor C reaches a certain value, the controllable silicon conducting, at this moment the single-phase permanent alternating current generator will be by the single-phase half-controlled commutating circuit that is made of diode and controllable silicon to the capacitor C charging and power to the load.When the voltage of single-phase permanent alternating current generator raise, the voltage on the capacitor C was also along with rising, because controllable silicon SCR ₁, SCR ₂Control utmost point maximum potential by voltage stabilizing didoe D _WFix, so, along with the voltage on the capacitor C rises, controllable silicon SCR ₁, SCR ₂The difference of the terminal voltage of maximum potential and the capacitor C of the control utmost point will reduce gradually, and when the two difference during less than the silicon controlled trigger voltage, regardless of output voltage, controllable silicon is no longer conducting also, has limited the continuation rising of load voltage thus.After controllable silicon ends, capacitor C is because of losing charging current, its terminal voltage will begin along with the discharge to load to descend, when dropping to the operation voltage of adjusting, controllable silicon is again with conducting, and to the capacitor C charging, the voltage of capacitor C will rise again again, to descend again when exceeding operation voltage, and so make the voltage at load two ends adjusted repeatedly.

The utility model also can be applicable in the equipment of small motor vehicle that is equipped with storage battery, uses as rectifier, and can effectively prevent overcharging of accumulator jar.

Claims (1)

1, a kind of single-phase permanent alternating current generator load voltage adjuster belongs to technical field of electric appliances, by resistance R ₁, R ₂Diode D ₁, D ₂, D ₃, D ₄, D ₅, D ₆, electrochemical capacitor C, voltage stabilizing didoe D _W, controllable silicon SCR ₁, SCR ₂Form, it is characterized in that diode D ₁, D ₂, controllable silicon SCR ₁, SCR ₂Constitute the single-phase half-controlled rectification circuit, resistance R ₁, diode D ₃, D ₄And R ₂, D ₆, D ₅Respectively from controllable silicon SCR ₁, SCR ₂Anode for its control utmost point provide trigger current, voltage stabilizing didoe D _WPlus earth, negative pole connect diode D simultaneously ₃, D ₆Negative pole and D ₄, D ₅Positive pole, electrochemical capacitor C is connected in parallel on output, positive pole is connected controllable silicon SCR ₁, SCR ₂Negative electrode, minus earth.

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