CN2281609Y

CN2281609Y - Stable voltage generator

Info

Publication number: CN2281609Y
Application number: CN 96244804
Authority: CN
Inventors: 王总周
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-11-27
Filing date: 1996-11-27
Publication date: 1998-05-13
Anticipated expiration: 2006-11-27

Abstract

The utility model relates to an alternating-current permanent magnetism stable voltage generator used for tractors, which is composed of a stator and a permanent magnetism rotor, wherein, the stator comprises a casing, stator irons and a stator coil; three stator irons are symmetrically arranged in the casing; each stator iron is I-shaped and arranged in a transverse mode; each stator iron is wound with a group of stator coils which are multilayer pressed; in the stator coils which are multilayer pressed, a space is reserved between adjacent two windings of each layer; the space is smaller than the linear diameter of a wire of the coil; each layer of the stator coils is arranged in an interlacing overlapped mode; three groups of the coils are connected in series; the head ends, the tail ends and the two concatenation points are respectively provided with an output lead wire. The utility model has the advantages that the defect that the output voltage is low when the generator runs with low speed is solved; the output voltage is high when the generator runs with low speed; the output rated-voltage is stable when the generator runs with high speed; in addition, different hierarchical voltages can be put out.

Description

Stable-voltage generator

The utility model relates to a kind of generator, and especially the used with tractor AC permanent-magnetic generator belongs to H02P9/00 class electrical generator fields.

The power supply of tractor illuminating lamp is provided by AC permanent-magnetic generator, and it is made of stator, magneto rotor, and stator comprises shell, stator core and stator coil.The output voltage of this generator roughly is directly proportional with its rotating speed, when tractor night during travels down in the recessed injustice in hole, engine speed descends, the rotating speed of generator also descends thereupon, this moment, the output voltage of generator was lower, cause illuminating lamp dim even can not light, have a strong impact on traffic safety.

In addition, the rated output voltage of this generator only has a kind of, as 6V or 12V, just require all illuminating lamps all to adopt same electric pressure like this, inconvenience is arranged in the practicality more.

In view of above-mentioned, the utility model will provide a kind of voltage stabilizing AC permanent-magnetic generator, and it is when low-speed running, exportable higher voltage, and when running up exportable stable rated voltage, its voltage of exportable different brackets also in addition is to adapt to the illuminating lamp of different electric pressures.

For reaching above purpose, the utility model adopts following scheme:

A kind of stable-voltage generator is made of stator and magneto rotor, and stator comprises shell, stator core and stator coil, it is characterized in that: symmetry is placed three stator cores in the described shell; Described each stator core is " I " shape, and transversely arranged, one group of multilayer of coiling stator coil that changes on each stator core; Described multilayer changes in the coil, reserves the gap between adjacent two circles of each layer, and this gap is less than the line footpath of winding wire, and each of stator coil layer interlocks and repeatedly puts; Described three groups of coils are connected in series, from its head end, tail end and two series connection point leaded outputs respectively.

Below in conjunction with drawings and Examples the utility model is elaborated.

Fig. 1 is the expanded view of stator core of the present utility model;

Fig. 2 is the line graph of stator coil of the present utility model;

Fig. 3 is an output characteristics figure of the present utility model.

The utility model is made of stator, magneto rotor, sees also accompanying drawing 1, and stator comprises shell 1, stator core 2 and stator coil 3.Symmetry is placed three stator cores 2 in the shell 1, each stator core 2 is " I " shape, and it is transversely arranged, one group of multilayer of coiling stator coil 3 that changes on each stator core 2, during coiling, reserve the gap between adjacent two circles of each layer of stator coil 3, this gap is less than the line footpath of winding wire, each layer of stator coil 3 is staggered repeatedly to be put (one the three layer line circle that only draws among the figure, and ground floor does not cut open).

See also accompanying drawing 2 again, three groups of coils on three stator cores are connected in series respectively, then from its head end A, tail end 0 and two series connection point B and the C output that goes between respectively, if be negative pole, then from the voltage of A, B, the exportable three kinds of different brackets of C three ends with tail end 0.

The utility model is owing to adopt three stator cores and three groups of coils, the output voltage in the time of therefore can improving the generator low-speed running; Owing to during coiling, between two circles of coil, leave the gap, thus when generator runs up exportable stable voltage, make it no longer to raise with generator speed; Owing to adopting three groups of coil tandems and going between, so the voltage of exportable three kinds of different brackets is for the illuminating lamp use of different electric pressures from series connection point.

The utility model draws v=f shown in Figure 3 (n) output characteristics figure through test, and curve 1 is the output characteristic of former AC permanent-magnetic generator among the figure, and curve 2 is an output characteristic of the present utility model.As seen from the figure, curve 2 is better than curve 1.

Claims

1. a stable-voltage generator is made of stator and magneto rotor, and stator comprises shell, stator core and stator coil, it is characterized in that:

Symmetry is placed three stator cores in the described shell;

Described each stator core is " I " shape, and transversely arranged, one group of multilayer of coiling stator coil that changes on each stator core;

Described multilayer changes in the coil, reserves the gap between adjacent two circles of each layer, and this gap is less than the line footpath of winding wire, and each of stator coil layer interlocks and repeatedly puts;

Described three groups of coils are connected in series, its head end, tail end and two series connection point leaded outputs respectively.