CN2884660Y

CN2884660Y - Phase-splitting magnetic circuit generator

Info

Publication number: CN2884660Y
Application number: CN 200620082587
Authority: CN
Inventors: 肖振霞; 肖光达
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-03-31
Filing date: 2006-03-31
Publication date: 2007-03-28
Anticipated expiration: 2016-03-31

Abstract

It is a phase separating magnetic circuit generator, comprising a stator and a rotor, which comprises an even of magnetic poles, and the structure is characterized in that the number of the stator cores is twice of the even of magnetic poles, these stator cores are divided into two groups, each cold-rolled tropism silicon steel plate in each stator core is made into a parallelogram and then is bent into two parts, wherein the extension part of every cold-rolled tropism silicon steel plate in the direction of the magnetic pole forms an iron core column, and the other part is equally split into halves and then protrudes out of the two sides and constitutes an iron core block forming coattail shape, the iron core block is fixed and connected with the inner surface of the stator shell, all the core columns in the two groups along the circumference surface are crossed and distributed, all the iron core blocks in the same group are closely adjacent and are crossed closely adjacently with the axial of the iron core blocks in the other group, and the stator coil is divided into two-phase, and is wound around each iron core column in the two groups of the stator cores, with the winding direction according to the clockwise and counterclockwise in circulatory order. The power generation efficiency of such phase separating magnetic circuit generator is more than 90%, and the power generation efficiency is 86% if being used in automotive generators.

Description

Phase separation magnetic circuit generator

Technical field

The utility model relates to a kind of generator, a kind of phase separation magnetic circuit generator of more specifically saying so.

Background technology

Traditional have a groove generator, mainly comprise stator and rotor two large divisions, its stator core is to be formed by circular silicon steel plate stacking insulated from each other, the all necessary some grooves of punching out on each lamination, be embedded with stator coil in the groove, rotor comprises rotating shaft, is set with in the rotating shaft with silicon steel sheet or punching of the steel plate and the rotor magnetic pole that is overrided to form, is wound with magnet exciting coil on the rotor magnetic pole.This traditional drawback that the groove generator is arranged is: because all necessary jet-bedding of stator core and rotor magnetic pole, therefore used silicon steel sheet can not be with the very crisp high cold-rolled orientation silicon steel sheet of permeability and can only be with the low low silicon silicon steel sheet of permeability, and cause generating efficiency low: the generating efficiency of common generator is that the efficient of 75%-80%, automobile silicon rectification generator is 50%.In order to improve the efficient of generator, the applicant had released one after another at 1997 and 2004 once that the patent No. is 97126126.1,97126127.X, 200410023516.4 unslotted generator, through test repeatedly, though the generating efficiency of these unslotted generators improves a lot than traditional groove generator that has, but still not ideal enough, generating efficiency also has the leeway of improving.

Summary of the invention

The purpose of this utility model provides the higher phase separation magnetic circuit generator of a kind of generating efficiency.

In order to realize above-mentioned purpose, the phase separation magnetic circuit generator that is provided, comprise stator and rotor, rotor comprises rotating shaft, the intrinsic belt pulley of cover in the rotating shaft, utmost point dish and the slip ring that contacts with carbon brush, utmost point dish comprises evenly distributed radially even number of poles, the inner segment of each magnetic pole is widen trapezoidal, so that make the tight adjacency of the inner segment of each magnetic pole, be wound with magnet exciting coil on each magnetic pole, the winding direction of the magnet exciting coil on the adjacent pole is opposite, stator comprises the stator case that is the ring body shape, be connected with the even number stator core on the inner surface of stator case, be wound with stator coil on each stator core, each is superposeed each magnetic pole and each stator core and is fixed together by multi-disc cold-rolled orientation silicon steel sheet, every cold-rolled orientation silicon steel sheet is made by the orientation direction, make the direction of orientation of the magnetic conduction direction of each magnetic pole and stator core and cold-rolled orientation silicon steel sheet in full accord, leave air gap between each magnetic pole and the stator core, its design feature is that the quantity of stator core is the twice of even number of poles, these stator cores are divided into two groups, every cold-rolled orientation silicon steel sheet in each stator core is bent into two parts again after being made into parallelogram, wherein each sheet cold-rolled orientation silicon steel sheet part of stretching out to pole orientation constitutes iron core column, another part is divided equally the back and is stretched out to both sides, constitute the iron core base that is swallow-tail form, iron core base is fixed on the inner surface of stator case, each iron core column in two groups is along the periphery cross-distribution, the tight adjacency of each iron core base on the same group, and axially intersect tight adjacency with the iron core base of another group, stator coil is divided into two-phase, be wrapped in respectively on each iron core column of two groups of stator cores, this two-phase stator coil around to, according to the ordering of stator core in every group, according to clockwise, counterclockwise circular order coiling.

Above-mentioned phase separation magnetic circuit generator also is connected with end cap on stator case, rotating shaft by bearings on end cap.

Phase separation magnetic circuit generator provided by the utility model, during work, exciting curent passes through carbon brush, slip ring, connect lead and enter magnet exciting coil, magnetic pole produces induced field, the distribution of its polarity is the N utmost point, the S utmost point alternately, the path of the magnetic line of force of induced field is that two dovetails of the N utmost point → air gap → corresponding iron core column → through constituting iron core base from magnetic pole are divided into two-way → respectively through the S utmost point of the iron core column → air gap → magnetic pole of that adjacent dovetail → correspondence → the get back to N utmost point of magnetic pole, because stator core is divided into two groups, Dui Ying magnetic circuit just has two-phase with it, when prime mover is given belt pulley through belt with transmission of power, when driving the rotating shaft rotation by belt pulley again, magnetic pole on the utmost point dish is rotation simultaneously also, the trend of the magnetic line of force of each stator core of process just alternately changes, so, be wrapped in two groups of stator coils on the stator core and just induce the electromotive force of two-phase alternation, produce phase difference and be 180 ° two-phase alternating current, externally directly power.If on two groups of stator coils, be connected to rectifier respectively, just obtain the two-phase direct current, be used for automobile current generator after the parallel connection, the electric power supply on automobile.

Phase separation magnetic circuit generator of the present utility model, because stator core is divided into each the iron core column cross-distribution in two groups, these two groups, so when certain magnetic pole in the rotor turns to wherein interval location between one group of two adjacent iron core column, a lucky iron core column over against another group, make the magnetic line of force keep level and smooth stable uninterrupted, thereby improved generating efficiency through rotor magnetic pole and stator core.After tested, the generating efficiency of this phase-splitting magnetic circuit generator improves 10%-15% more than 90% than traditional generating efficiency that the groove generator is arranged, if be used for automobile current generator, generating efficiency is 86%, improves 36% than traditional groove automobile current generator that has.This phase separation magnetic circuit generator, the temperature rise that also has other unslotted generator simultaneously and had is low, materials are economized, volume is little and lightweight advantage.

Description of drawings

Embodiment of the present utility model is illustrated in conjunction with the accompanying drawings, wherein:

Fig. 1 is the structural representation of the described phase separation magnetic circuit generator of embodiment;

Fig. 2 is the distribution schematic diagram of magnetic pole on utmost point dish;

Fig. 3 is the end view of stator, only is decorated with stator coil on the cylinder of one group of iron core column therein among the figure;

Fig. 4 is the expanded view of two groups of stator cores;

Fig. 5 is the stereogram of single stator core;

Fig. 6 be between rotor magnetic pole and the stator core magnetic line of force move towards schematic diagram.

Among the figure: 1 is rotating shaft, and 2 is belt pulley, and 3 are utmost point dish: 3-1 wherein is that magnetic pole, 3-2 are that utmost point dish folder, 3-3 are set bolts, 4 is carbon brush, 5 is slip ring, and 6 for connecting lead, and 7 is magnet exciting coil, 8 is stator case, 9 are stator core: 9-1 wherein is that iron core column, 9-2 are iron core bases, and 10 is stator coil, and 11 is end cap, 12 is bearing, and 13 is fastening screw.

Embodiment

With reference to accompanying drawing, the described phase separation magnetic circuit generator of embodiment, comprise stator and rotor, rotor comprises rotating shaft 1, the intrinsic belt pulley 2 of cover in the rotating shaft 1, utmost point dish 3 and the slip ring 5 that contacts with carbon brush 4, utmost point dish 3 comprises evenly distributed radially even number of poles 3-1,8 have been drawn among the figure, the inner segment of each magnetic pole 3-1 is widen trapezoidal, so that make the tight adjacency of the inner segment of each magnetic pole, be wound with magnet exciting coil 7 on each magnetic pole 3-1, slip ring 5 is electrically connected with magnet exciting coil 7 formations by connecting lead 6, the winding direction of the magnet exciting coil 7 on the adjacent pole 3-1 is opposite, stator comprises the stator case 8 that is the ring body shape, on stator case 8, be connected with end cap 11 by fastening screw 13, end cap 11 is made of left end cap and right end cap, rotating shaft 1 is supported on the end cap 11 by bearing 12, be connected with even number stator core 9 on the inner surface of stator case 8,16 have been drawn among the figure, be wound with stator coil 10 on each stator core 9, each magnetic pole 3-1 and each stator core 9 each to be every square centimeter by the multi-disc permeability be that 22000 Gausses' cold-rolled orientation silicon steel sheet is superimposed, 8 magnetic pole 3-1 wherein are fixed together by set bolt 3-3 with former and later two utmost point dish folders 3-2, every cold-rolled orientation silicon steel sheet is made by the orientation direction, make the direction of orientation of the magnetic conduction direction of each magnetic pole 3-1 and stator core 9 and cold-rolled orientation silicon steel sheet in full accord, leave air gap between each magnetic pole 3-1 and the stator core 9, these 16 stator cores 9 are divided into two groups, every cold-rolled orientation silicon steel sheet in each stator core 9 is bent into two parts again after being made into parallelogram, wherein each sheet cold-rolled orientation silicon steel sheet constitutes iron core column 9-1 after the part that magnetic pole 3-1 direction is stretched out is fixed with rivet, another part is divided equally the back and is stretched out to both sides, constitute the iron core base 9-2 that is swallow-tail form, iron core base 9-2 is fixed on the inner surface of stator case 8 with rivet, each iron core column 9-1 in two groups is along the periphery cross-distribution, the tight adjacency of each iron core base 9-2 on the same group, and axially intersect tight adjacency with the iron core base 9-2 of another group, stator coil 10 is divided into two-phase, be wrapped in respectively on each iron core column 9-1 of two groups of stator cores 9, this two-phase stator coil 10 around to, according to the ordering of stator core 9 in every group, according to clockwise, counterclockwise circular order coiling.

Claims

1, a kind of phase separation magnetic circuit generator, comprise stator and rotor, rotor comprises rotating shaft (1), cover intrinsic belt pulley (2) is gone up in rotating shaft (1), utmost point dish (3) and the slip ring (5) that contacts with carbon brush (4), utmost point dish (3) comprises evenly distributed radially even number of poles (3-1), the inner segment of each magnetic pole (3-1) is widen trapezoidal, so that make the tight adjacency of the inner segment of each magnetic pole, be wound with magnet exciting coil (7) on each magnetic pole (3-1), the winding direction of the magnet exciting coil (7) on the adjacent pole (3-1) is opposite, stator comprises the stator case (8) that is the ring body shape, be connected with even number stator core (9) on the inner surface of stator case (8), be wound with stator coil (10) on each stator core (9), each is superposeed each magnetic pole (3-1) and each stator core (9) and is fixed together by multi-disc cold-rolled orientation silicon steel sheet, every cold-rolled orientation silicon steel sheet is made by the orientation direction, make the direction of orientation of the magnetic conduction direction of each magnetic pole (3-1) and stator core (9) and cold-rolled orientation silicon steel sheet in full accord, leave air gap between each magnetic pole (3-1) and the stator core (9), the quantity that it is characterized in that stator core (9) is the twice of even number of poles (3-1), these stator cores (9) are divided into two groups, every cold-rolled orientation silicon steel sheet in each stator core (9) is bent into two parts again after being made into parallelogram, wherein each sheet cold-rolled orientation silicon steel sheet part of stretching out to magnetic pole (3-1) direction constitutes iron core column (9-1), another part is divided equally the back and is stretched out to both sides, constitute the iron core base (9-2) that is swallow-tail form, iron core base (9-2) is fixed on the inner surface of stator case (8), each iron core column (9-1) in two groups is along the periphery cross-distribution, each iron core base (9-2) on the same group is adjacency closely, and axially intersect tight adjacency with the iron core base (9-2) of another group, stator coil (10) is divided into two-phase, be wrapped in respectively on each iron core column (9-1) of two groups of stator cores (9), this two-phase stator coil (10) around to, according to the ordering of stator core (9) in every group, according to clockwise, counterclockwise circular order coiling.

2, phase separation magnetic circuit generator according to claim 1 is characterized in that also being connected with end cap (11) on stator case (8), rotating shaft (1) is supported on the end cap (11) by bearing (12).