CN2386576Y - Voltage stabilizing dynamo magneto - Google Patents

Abstract

The utility model relates to a permanent magnet generator which can output stable voltage. The relative positions between a rotor and a stator are changed through an execution motor to adjust and stabilize the output voltage of the generator, and the utility model is characterized in that the execution motor and the output voltage of the generator form a feedback control return circuit. In addition, the utility model uses the structure design that the execution motor and the generator have the same axle center, and are provided with a balance spring and an adjusting device to partially counteract magnetic attractive force between the rotor and the stator of the generator. The axial dimensions of the whole generator are further reduced, and the utility model has the advantages of compact structure and portable voltage stabilization adjustment.

Description

Voltage stabilization permanent magneto generator

The utility model relates to a class voltage stabilization permanent magneto generator, and particularly the small-sized efficient rate permanent magnet generator of constant voltage, constant frequency is stablized in output, belongs to electricity field.

At present, newly-designed permanent magnet generator has adopted by changing relative position between rotor and stator, and then regulate and export, the scheme of burning voltage, as patent 97235798, though the mechanical location stability of this patent improves more than patent 95239672 disclosed technical schemes, and processing, install easier, the suction between rotor and the stator has also been offset in the employing of balancing spring, thereby fall greatly to the power requirement of actuating motor, make whole voltage stabilizing control procedure easier, more stable, but the scheme that patent 97235798 adopts worm-and-wheel gear to regulate the stator slip cap has increased the axial length of generator, and the production and processing difficulty is bigger.

The purpose of this utility model is: on above-mentioned existing patented technology voltage stabilizing scheme basis, adopt the design of actuating motor and generator coaxle core structure, and balancing spring is set and adjusting device is come magnetic attraction between partial offset generator amature and the stator, improve the productibility of product, the whole generating arbor is further dwindled to size, structure is compact more, and voltage stabilizing is regulated lighter.

For achieving the above object, a kind of technical scheme of the present utility model is, it is by line shaft, rotor, stator, actuating motor, compositions such as sample circuit, the input of sampling control circuit is connected to the output of generator, the output of sample circuit is connected to the controlled terminal of carrying out actuating motor, rotor is fixed on the line shaft, rotation axis is outside equipped with removable slip cap, stator is fixed on an end of this slip cap, on this slip cap gathering sill is arranged, the other end of this slip cap is provided with an adjustable external thread sleeve in its fixed position, the internal thread engagement of this external thread sleeve and actuating motor rotor, the stator of actuating motor, the rotor limit base all is fixed on the electric generator casing, the actuating motor rotor is installed in the middle of the actuating motor rotor limit base, be provided with the thrust washer of wear-resisting wiping between two limit bases and the actuating motor rotor, balancing spring places between actuating motor rotor limit base and the external thread sleeve.By adjusting the size that the position of external thread sleeve on rotation axis can the adjustment spring tension, thereby get rid of the influence that the relevant parts production and processing of generator error is brought the whole generator performance.The mentality of designing of the technical program is with cylindrical location processing, does not contact between the slip cap of power rotation axis and fixed stator, effectively raises thermal stability under the generator high-speed cruising situation.

For realizing above-mentioned overall technological scheme, another kind of technical scheme of the present utility model is that rotor is fixed on the power rotation axis, rotation axis is outside equipped with sleeve, be provided with wear-resisting wiping axle sleeve between this sleeve and the rotating shaft, be fixed with feather key on the sleeve, this sleeve also is set with the stator slip cap outward, stator is fixed on the stator slip cap, have gathering sill and external screw thread on the stator slip cap, be set with balancing spring on the sleeve, the two ends of this spring are inconsistent with sleeve and stator slip cap respectively, and the rotor of actuating motor is meshed with external screw thread on the stator slip cap by internal thread, is provided with thrust washer between actuating motor rotor and the generator housing.The technical program is adopting wear-resisting wiping axle sleeve and thrust washer between rotating shaft and the sleeve, between actuating motor rotor and the generator housing, increased move between each rotatable parts of complete machine steadily and reliability.

In addition, in the above technical scheme also can according to design parameter require to determine rotor, stator this magnetic gap face and the angle between the rotor rotation central axis.

The utility model has the advantages that: the actuating motor and the generator coaxle heart, the whole generating arbor is further dwindled to size, structure is compact more; The employing of balancing spring greatly reduces the power requirement to actuating motor, makes whole voltage stabilizing control procedure easier, more stable, has further improved the efficient of whole generating unit; Adopt the magnetic gap face and the whole mentality of designing of the adjustable included angle between the rotor rotation central axis of rotor stator, make under same adjusting voltage regulation result situation, can reduce the displacement of movable stator; Contactless structural design effectively raises the thermal stability under the generator high-speed cruising situation between adopting the generator line shaft in one of scheme and slidably overlapping; Scheme two in adopting wear-resisting wiping axle sleeve and thrust washer between rotating shaft and the sleeve, between actuating motor rotor and the generator housing, increased move between each rotatable parts of complete machine steadily and reliability.

Introduce two specific embodiments of the present utility model below in conjunction with accompanying drawing.

Accompanying drawing 1 is the structural representation of the utility model embodiment one.

Accompanying drawing 2 is structural representations of the utility model embodiment two.

The concrete structure of embodiment one as shown in Figure 1.Among the figure, the 1st, generator amature, the 2nd, generator unit stator, the 3rd, the stator slip cap, the 4th, actuating motor rotor limit base, the 5th, power rotation axis, the 6th, balancing spring, the 7th, external thread sleeve, the 8th, actuating motor rotor, the 9th, wear-resisting wiping thrust washer, the 10th, actuating motor stator, the 11st, actuating motor rotor limit base, the 12nd, electric generator casing.Rotor 1 is fixed on the line shaft 5, rotation axis 5 is outside equipped with removable slip cap 3, stator 2 is fixed on an end of this slip cap 3, on this slip cap gathering sill is arranged, the external thread sleeve 7 that can regulate a fixed position is set on the other end of this slip cap, the internal thread engagement of this external thread sleeve and actuating motor rotor 8, the stator 10 of actuating motor and actuating motor rotor limit base 4,11 all are fixed on the electric generator casing 12, actuating motor rotor 8 is positioned at actuating motor rotor limit base 4, in the middle of 11, be provided with wear-resisting wiping thrust washer 9 between two limit bases and the actuating motor rotor, balancing spring 6 places between actuating motor rotator seat 4 and the external thread sleeve 7.Do not contact the heat dissipation problem when having avoided generator line shaft high speed rotating effectively between line shaft 5 and the stator slip cap 3.Magnetic gap face that rotor 1, stator are 2 and the angle between the rotor rotation central axis are 5 degree.The sampling control circuit is prior art (can referring to " electronics newspaper " second edition on July 30th, 1), and its signal input part is connected with the generator output lead, and its control signal output ends then is connected with direct current machine.When the permanent magnet generator loaded work piece when output voltage is 220 volts of (or 110 volts) rated voltages, the output valve of sampling control circuit sampling is more consistent with the reference voltage value of voltage reference circuit, error is amplified and the output valve of comparison circuit makes electric machine speed regulation commutation drive circuit be output as " 0 ", and direct current machine is failure to actuate.When the user reduces or increase the load electric power, cause the fluctuation of output voltage values, at this moment, the sampling control circuit detects the side-play amount of output voltage, its output circuit control actuating motor changes rotation direction and amount of spin, and then drive stator displacement vertically, thereby changed the magnetic resistance between rotor and the stator and changed the density of rotor cutting magnetic line, up to voltage stabilizing in fiducial value.The power supply of sampling control circuit directly takes out from generator output end, offers circuit after step-down, rectification, voltage stabilizing, simultaneously, and as the direct current supply of actuating motor.

The concrete structure of embodiment two as shown in Figure 2.Among the figure, the 13rd, rotor, the 14th, feather key, the 15th, balancing spring, the 16th, sleeve, the 17th, wear-resisting wiping axle sleeve, the 18th, rotating shaft, the 19th, stator, the 20th, electric generator casing, the 21st, stator slip cap, the 22nd, actuating motor rotor, the 23rd, internal and external threads.Rotor 13 is fixed on the power rotation axis 18, this rotation axis 18 is outside equipped with sleeve 16, be provided with wear-resisting wiping axle sleeve 17 between this sleeve 16 and the rotating shaft 18, this sleeve 16 by screw on electric generator casing, these sleeve 16 outer stator slip caps 21 that also are set with, stator 19 is fixed on the stator slip cap 21, external screw thread is arranged on the stator slip cap 21 and have gathering sill, feather key 14 makes stator slip cap 21 do axial motion on sleeve 16 with the effect of gathering sill, be set with balancing spring 15 on the sleeve 16, the two ends of this spring 15 are inconsistent with sleeve 16 and stator slip cap 21 respectively, actuating motor adopts direct current machine, and its rotor 22 is meshed with external screw thread on the stator slip cap 21 by internal thread 23.Magnetic gap face that rotor 13, stator are 19 and the angle between the rotor rotation central axis are 5 degree.The same example of voltage stabilizing adjustment process of present embodiment.

Claims (3)

1, a kind of voltage stabilization permanent magneto generator, it is by line shaft, rotor, stator, actuating motor, compositions such as sample circuit, the input of sampling control circuit is connected to the output of generator, the output of sample circuit is connected to the controlled terminal of carrying out actuating motor, it is characterized in that: rotor is fixed on the line shaft, rotation axis is outside equipped with removable slip cap, stator is fixed on an end of this slip cap, on this slip cap gathering sill is arranged, the other end of this slip cap is provided with an external thread sleeve, the fixed position of this external thread sleeve on slip cap can be regulated, the internal thread engagement of this external thread sleeve and actuating motor rotor, the stator of actuating motor, the rotor limit base all is fixed on the electric generator casing, the actuating motor rotor is installed in the middle of the actuating motor rotor limit base, be provided with the thrust washer of wear-resisting wiping between two limit bases and the actuating motor rotor, balancing spring places between actuating motor rotor limit base and the external thread sleeve.

2, a kind of voltage stabilization permanent magneto generator, it is by line shaft, rotor, stator, actuating motor, compositions such as sampling control circuit, the input of sampling control circuit is connected to the output of generator, the output of sampling control circuit is connected to the controlled terminal of actuating motor, it is characterized in that: rotor is fixed on the power rotation axis, rotation axis is outside equipped with sleeve, be provided with wear-resisting wiping axle sleeve between this sleeve and the rotating shaft, be fixed with feather key on the sleeve, this sleeve also is set with the stator slip cap outward, stator is fixed on the stator slip cap, have gathering sill and external screw thread on the stator slip cap, be set with balancing spring on the sleeve, the two ends of this spring are inconsistent with sleeve and stator slip cap respectively, and the rotor of actuating motor is meshed with external screw thread on the stator slip cap by internal thread, is provided with thrust washer between actuating motor rotor and the generator housing.

3, according to claim 1 or 2 fast voltage stabilization permanent magneto generator, it is characterized in that: the angle between the magnetic gap face of rotor stator and the generator amature center of rotation axis is between 0 degree and 20 degree.

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