CN203645505U

CN203645505U - DC brushless coreless dual-rotor motor

Info

Publication number: CN203645505U
Application number: CN201320662376.XU
Authority: CN
Inventors: 李保金
Original assignee: 李保金
Priority date: 2013-10-25
Filing date: 2013-10-25
Publication date: 2014-06-11
Anticipated expiration: 2023-10-25

Abstract

The utility model discloses a DC brushless coreless dual-rotor motor comprising two rotors and a stator; the round rotors and the stator are circular and are respectively provided with a central shaft hole; the rotors and the stator are sleeved and fixed on a central shaft; the stator is arranged in an axial direction magnetic field, and comprises a stator disc and solenoid windings arranged along a periphery of the stator disc; two side faces of the solenoid winding are respectively an N pole and a S pole; the rotors are symmetrically arranged on two sides of the stator; an inner side face of each rotor is provided with permanent magnets having N poles and S poles alternatively arranged. The stator is employed to push the two rotors to rotate; each winding of the motor is provided with two magnetic poles being the S pole on one end and the N pole on the other end; the rotors rotate in a same direction; the power consumption of a conventional motor is used to output two rotors with same torsion force, thereby greatly improving power density and load capacitor of the DC brushless coreless dual-rotor motor.

Description

A kind of brush DC iron-core-free spinner motor

Technical field

The utility model relates to motor technology field, particularly a kind of brush DC iron-core-free spinner motor.

Background technology

Existing brush DC Non-iron core motor is to adopt brushless electronics phase changer to commutate, and electromagnetic field is for radially, and its rotor is just arranged at a side of electromagnetic field, and opposite side leaves unused, and the suffered moment of rotor is less, and energy consumption is larger, and magnetic field utilance is low.

Utility model content

The purpose of this utility model is to provide a kind of magnetic field utilance high, and the brush DC iron-core-free spinner motor that energy consumption is little, by realizing the raising of motor power (output) density to making full use of of electromagnetic field.

The purpose of this utility model is achieved by the following technical programs, a kind of brush DC spinner motor, comprise rotor and stator, it is characterized in that, described rotor and stator are and offer the round of central shaft hole, its rotor is two, rotor and stator suit are fixed on a central shaft, described stator is axial magnetic field setting, comprise stator disc and solenoid winding, solenoid winding is along the circumferential arrangement of stator disc, two sides of solenoid winding are respectively the N utmost point and the S utmost point, described rotor is symmetricly set in the both sides of stator, on the medial surface of each rotor, be equipped with permanent magnet.

Further, on described rotor medial surface the N utmost point of permanent magnet and S interpolar every being arranged alternately.

Further, described stator is coordinated and is assemblied on described central shaft by key, described rotor by bearing assemble on described central shaft.

Further, described stator comprises two stator discs that are set up in parallel, and stator disc cylindrical is circumferentially with draw-in groove, and solenoid winding is installed in draw-in groove.

Further, described solenoid winding comprises solenoid and bobbin winder base, and bobbin winder base is " work " font, and solenoid is wrapped on the central sill of bobbin winder base.

Beneficial effect: the utility model utilizes a stator to promote two rotors.On each winding of motor, can produce two magnetic pole one end is that the S utmost point, the other end are the N utmost point, turning to of rotor is same direction rotation, with two rotors that torsion is identical of power consumption output of conventional motors, significantly improve power density and the load capacity of direct current permanent magnetic brushless motor; Adopt two round rotors, stressed is to act on the side of rotor, and moment is longer, and torque increases, and is beneficial to energy-saving and cost-reducing.The utlity model has simple in structurely, reasonable in design, inductance is little, the advantage that power density is high.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the medial surface schematic diagram of rotor;

Fig. 3 is the part schematic diagram of stator disc;

Fig. 4 is the part schematic diagram of solenoid winding.

Embodiment

As shown in Figure 1, a kind of brush DC spinner motor provided by the utility model, comprise rotor and stator, shown in Fig. 2, Fig. 3, rotor and stator are and offer the round of central shaft hole, rotor 3 and stator suit are fixed on a central shaft 1, and stator is coordinated and is assemblied on central shaft by key, and rotor is assemblied on central shaft 1 by bearing 2.Stator is axial magnetic field setting, comprise two stator discs that are set up in parallel 5, stator disc 5 cylindricals are circumferentially with draw-in groove 8, solenoid winding comprises solenoid 6 and bobbin winder base 7, stator disc 5 and bobbin winder base 7 adopt engineering plastics or epoxy resin to make, shown in Fig. 4, bobbin winder base 7 is " work " font, solenoid 6 is wrapped on the central sill of bobbin winder base 7, solenoid winding is located between two stator discs 5, its two ends are installed in the draw-in groove 8 of stator disc, several solenoid windings are along the circumferential arrangement of stator disc, two sides of solenoid winding are respectively the N utmost point and the S utmost point, rotor is two, be symmetricly set in the both sides of stator, on the medial surface of each rotor 3, be equipped with permanent magnet 4, the N utmost point of permanent magnet 4 and S interpolar are every being arranged alternately, utilize a stator to promote two rotors rotates simultaneously.

Above-described embodiment is as preferred embodiments of the present utility model; describe technical conceive of the present utility model and essential implementation in detail; not that protection range of the present utility model is limited; all any simple modification of doing according to the utility model Spirit Essence and equivalent structure transformation or modification, within all should being encompassed in protection range of the present utility model.

Claims

1. a brush DC iron-core-free spinner motor, comprise rotor and stator, it is characterized in that, described rotor and stator are and offer the round of central shaft hole, its rotor is two, rotor and stator suit are fixed on a central shaft, described stator is axial magnetic field setting, comprise stator disc and solenoid winding, solenoid winding is along the circumferential arrangement of stator disc, two sides of solenoid winding are respectively the N utmost point and the S utmost point, and described rotor is symmetricly set in the both sides of stator, on the medial surface of each rotor, is equipped with permanent magnet.

2. a kind of brush DC iron-core-free spinner motor according to claim 1, is characterized in that, on described rotor medial surface, the N utmost point of permanent magnet and S interpolar are every being arranged alternately.

3. a kind of brush DC iron-core-free spinner motor according to claim 1 and 2, is characterized in that, described stator is coordinated and is assemblied on described central shaft by key, described rotor by bearing assemble on described central shaft.

4. a kind of brush DC iron-core-free spinner motor according to claim 1 and 2, is characterized in that, described stator comprises two stator discs that are set up in parallel, and stator disc cylindrical is circumferentially with draw-in groove, and solenoid winding is installed in draw-in groove.

5. a kind of brush DC iron-core-free spinner motor according to claim 4, is characterized in that, described solenoid winding comprises solenoid and bobbin winder base, and bobbin winder base is " work " font, and solenoid is wrapped on the central sill of bobbin winder base.