CN2713714Y

CN2713714Y - Modularized iron core permanent-magnet motor

Info

Publication number: CN2713714Y
Application number: CN 200320101897
Authority: CN
Inventors: 万德鸿
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-10-17
Filing date: 2003-10-17
Publication date: 2005-07-27
Anticipated expiration: 2013-10-17

Abstract

The utility model provides a modularized iron core permanent-magnet machine which is a multi-polar fractional-slot structure. A motor stator is composed of a single gear coining a rear stacking rivet. When the designing of the fractional-slot of the modularized iron core permanent-magnet machine makes the pitch Y of a winding =1, a module tooth is firstly winded well with a coil and rethreaded a shaft sleeve to be split and assembled to a circular stator. The stationarity of the torque of the modularized iron core permanent-magnet machine is not only enhanced, but also the winding space-factor and the coiling quality of the modularized iron core permanent-magnet machine are enhanced for the inserted line slot opening of the stator is not existing, thus silicon sheet materials of 50% can be saved.

Description

Modularization iron core magneto

Affiliated technical field

The utility model relates to a kind of modularization iron core magneto and belongs to technical field of motors.

Background technology

Existing magneto, the punching of stator core all is circular multiple tooth full wafer punching out, every iron core all is that teeth groove is alternate, the groove area of most motors is greater than toothed area, therefore the utilance of material is low, because of embedding the needs of copper cash in every groove, every groove must leave the width of rebate of certain size again again, causes the torque pulsation of magneto to increase.Especially at fractional-slot, in the electric vehicle motor of the high-power low-tension supply of multipole multiple-grooved, because the pitch Y=1 of motor windings, be concentrating coil of coiling on each tooth, if the copper conductor sectional area is bigger, diameter of wire is thick, or need the flat cross section of coiling lead, the width of rebate of motor stamping not only needs broadening, and rule is very difficult, and motor performance is descended.

Summary of the invention

The purpose of this utility model provides a kind of utilance 50% that can improve the dynamo sheet material, can save material 50%, can significantly reduce the torque pulsation of magneto again, improves electric efficiency; Can be used on the high-power low-voltage motor of multipolarization multiple-grooved, in electric vehicle motor.

The technical scheme that its technical problem that solves the utility model adopts is: the circular punching of existing motor stator, change the punching out of modularization monodentate into, folded riveting becomes desired thickness after promptly adopting the monodentate punching out, form modular tooth, then the modularization monodentate is wound earlier and be combined into the circular stator of motor behind the coil, substitute after the folded again riveting of the circular punching of full wafer of prior art technology from the notch rule.

The beneficial effects of the utility model are, can arrange the raw material of punching flexibly by the actual size of monodentate, also can utilize the corner material of big motor to come the punching out monodentate; Adopt the band material shown in the accompanying drawing 4, positive and negative arrangement monodentate comes punching out, can save and improve the utilance of material.By the circular stator tooth punching out of the full wafer of above-mentioned monodentate modularization punching out and prior art, two kinds of different process methods relatively improve the utilance 50% of dynamo sheet material, can save material 50%; Again since the modularization monodentate be after the folded riveting on monodentate coiling, the modularization monodentate that winds coil is assembled into circular motor stator again, another beneficial effect of this technology is, can not stay the notch of stator built-in line, reduce the low speed fluctuation that the prior art motor brings because of slot effect, improved the motor traveling comfort.

Embodiment

Implementation method of the present utility model is: motor stator core by the modularization monodentate, is assembled into circular stator by round sleeve and constitutes; One rivet hole is arranged at each modularization monodentate top, and the monodentate root has a bolt hole.The rivet hole at top, after being used for monolithic built up desired thickness towards tooth, riveting tightly is a modularization tooth, as 24 groove motors, 24 modularization teeth is arranged; The bolt hole of tooth root is used for every modularization monodentate, by bolt and axle sleeve composite assembly, is assembled into circular stator after 24 module teeth are wound coil.

Description of drawings

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

Fig. 1 is that the monodentate punching becomes the module assembling view with folded riveting.

Fig. 2 is the plane combination partial graph of monodentate punching, the internal stator motor.

Fig. 3 is the plane combination partial graph of monodentate punching, the external stator motor.

Fig. 4 is monodentate method for punching diagrammatic sketch on the bar shaped woolen cloth.

Fig. 5 is axle sleeve structure figure.

Fig. 6 is assembled into the external rotor electric machine configuration diagram.

Fig. 1 in Fig. 6,1 monolithic tooth, 2 tooth top rivet and rivet holes, 3 bolts and tooth root bolt hole, 4 clamping rings, 5 axle sleeves, 6,7 permanent magnets, 8 coils, 9 bearings, 10 shells, 11 punching woolen cloths.

In Fig. 1 and Fig. 2, module tooth 1 becomes required thick by tooth top section rivet hole by closed assembly Degree, tight with rivet 2 rivetings, press the fractional-slot design of electrical motor, the pitch Y=1 of motor winding, namely every Individual tooth winds earlier coil and is assembled into whole motor calmly with bolt 3 and axle sleeve 5 and clamping ring 4 amalgamations again Son. Among accompanying drawing 1 and Fig. 2, be to be combined as a motor stator by 24 module teeth, namely 24 Groove and 28 utmost points consist of outer-rotor type hub for electric vehicle motor shown in Figure 6, the axle sleeve among Fig. 6 The 5th, equipped with axle 6 compressions, the bearing 9 at warp beam 6 two ends consists of whole motor with shell 10.

If inner rotor type motor, if still by 24 grooves, 28 utmost point fractional-slot design of electrical motor, from accompanying drawing Shown in 3, compare with accompanying drawing 2, as long as each module tooth opposite direction, permanent magnet 7 should be contained in On the internal rotor, and combine as a whole with axle 5.

The utility model can design by three-phase 24 grooves, 28 utmost points in force, also can be by three-phase 36 grooves, the design of 40 utmost points; Can also by four phases or the design of five phase multiple-grooved multipolarizations, make the joint of winding Apart from Y=1.

Above-mentioned Modularized iron core permanent-magnet motor has changed existing motor full wafer notching process, must stay The rule notch that one fixed width is arranged brings the torque pulsation that produces because of slot effect. Modularization is single The tooth combination is found out from accompanying drawing 2 and accompanying drawing 3, does not need line embedding groove. Because before module assembled, Wound coil in craft or automatic coil winding machine, the wire insertion technology that becomes whole motor stator is mould The wire winding of piece tooth has improved copper factor and coiling quality, and motor performance is improved.

From accompanying drawing 4, adopt punching woolen cloth 11, directly go out the monolithic silicon steel sheet of module tooth, compare with the circular stator punching of the full wafer of prior art and technology, the utilance of material improves 50%, promptly can save silicon steel sheet 50%, this has implementation result in the magneto of general middle low power.

Claims

1, a kind of modularization iron core magneto belongs to machine field, it is characterized in that:

A, motor stator core by the module monodentate, are assembled into circular stator by round sleeve and constitute;

One rivet hole is arranged at b, each modularization monodentate top, and the monodentate root has a bolt hole.