CN2122445U

CN2122445U - Trimming constant voltage generator

Info

Publication number: CN2122445U
Application number: CN92224004U
Authority: CN
Inventors: 刘深峰
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-06-08
Filing date: 1992-06-08
Publication date: 1992-11-18

Abstract

The utility model discloses a constant voltage generator for small-sized vehicles A rotor and a main shaft are connected in a sliding way, centrifugal arms are connected with the rotor and a land which is arranged on the main shaft, weight droppers are connected with the centrifugal arms, and one end of the rotor is pressed by a spring arranged on the main shaft; The utility model discloses a when the rotary speeds of the constant voltage generator are different, the axial displacement measurement of the rotor is controlled by the centrifugal displacement measurement of the weight droppers, the effective cut faces of magnetic fields of the stator and the rotor varies, the utility model discloses a so the phenomena of lamp bulbs dimming and burned out caused by the voltage deficiency or voltage too high can be avoided, the voltage deficiency or voltage too high is caused by the change of the rotary speed, and the constant voltage is realized.

Description

Trimming constant voltage generator

The utility model relates to a kind of generator that keeps constant voltage under the different situation of rotating speed.

In the prior art, the voltage that equipment of small motor vehicle lighting generators such as general tractor with small four wheels, motor tricycles provide changes with speed, when the speed of a motor vehicle is slow, cause car light brightness not enough, when the speed of a motor vehicle is very fast, even burn bulb, the vehicle that has is provided with outer micro-adjusting mechanism, but voltage still can not be stablized.

The purpose of this utility model provides a kind of generator that does not change output voltage with velocity variations.

The purpose of this utility model realizes by following measure, on its main shaft 3 belt pulley 14 is housed, fan base 2, casing and end cap, the stator 6 that it is characterized in that it connects as one with casing, rotor 8 is slidingly connected with main shaft 3, the limited rotor of contact portion of rotor 8 and main shaft 3 can only axially movable boss and groove mechanism, terminal pad 10 is housed on the main shaft 3, terminal pad 10 and all hinged centrifuge arm 17 in rotor 8 ends, both hinged many pin joint places to centrifuge arm connect weight hammer 9, spring 12 are arranged in order to elastic compression rotor 8 in the outside of main shaft or centre bore.

Stator be silicon steel sheet (or Steel disc) static line bag, its rotor are fixing polylith magnetic sheet 7 on the rotor block periphery.

Main shaft one end 3 has endoporus, and spring 12 is arranged in the hole, and an end of spring is compressed by threaded mandrel 16, and its other end is pressed in rotor tip and stretches on the interior boss of main shaft groove.

Housing 5 one ends and end cover integrated, core has the bearing groove of rigid bearing 4, and the other end of housing 5 is connected with end cap 11, and there is the bearing groove of rigid bearing 13 at end cap 11 middle parts.

Embodiment narration below in conjunction with accompanying drawing.

Fig. 1 is the utility model general structure cutaway view.

With reference to accompanying drawing is an embodiment of the present utility model, and its structure as mentioned above.Wherein its stator 6 is

Steel disc is fixed three groups of line bags, fixed magnetic plate 7 on the periphery of rotor 8.The spring 12 that limits rotor displacement is positioned at the centre bore of main shaft 3, is compressed by threaded mandrel 16.One end of its housing 5 and end cover integrated, the other end connects end cap 11.The main shaft two ends are by screw 1 and 15 fastening fan base 2 of difference and belt pulleys 14.

Its motor is an alternating current generator, during rotor 8 runnings, the line bag cutting magnetic line of stator 6 and produce electric current, when rotating speed is low, two centrifuge arms 17 that link to each other are tending towards parallel position, when rotating speed is higher, weight 9 radially produces displacement, and pulling rotor 8 moves to compression spring direction, thereby changes the effective width of stator cutting magnetic line, realize the purpose of stop voltage, when voltage instability, adjust the displacement of threaded mandrel 16, can adjust the pretightning force of spring 12, the displacement of control rotor realizes that voltage is constant in the rotation speed change.

This generator can be widely used in cyclecar, has made it reliable voltage.

Claims

1, but a kind of constant pressure type generator of automatic fine tuning of an illumination of buying car in installments, can be used for baby tractor, cyclecars such as motor tricycles, on its main shaft 3 belt pulley 14 is housed, fan base 2, casing and end cap, the stator 6 that it is characterized in that it connects as one with casing, rotor 8 is slidingly connected with main shaft 3, the limited rotor of contact portion of rotor 8 and main shaft 3 can only axially movable boss and groove mechanism, terminal pad 10 is housed on the main shaft 3, terminal pad 10 and all hinged centrifuge arm 17 in rotor 8 ends, the pin joint place of every pair of centrifuge arm that both are hinged connects weight hammer 9, spring 12 is arranged in order to elastic compression rotor 8 in the outside of main shaft or centre bore.

2, generator according to claim 1, it is characterized in that described stator be silicon steel sheet (or

Steel disc) static line bag, its rotor are fixed magnetic plate 7 on the rotor block periphery.

3, generator according to claim 1 and 2 is characterized in that described main shaft one end 3 has endoporus, and spring 12 is arranged in the hole, and an end of spring is compressed by threaded mandrel 16, and its other end is pressed in rotor tip and stretches on the interior boss of main shaft groove.

4, according to claim 1 or 2 or 3 described generators, it is characterized in that described housing 5 one ends and end cover integrated, core has the bearing groove of rigid bearing 4, and the other end of housing 5 is connected with end cap 11, and there is the bearing groove of rigid bearing 13 at end cap 11 middle parts.