CN2521818Y

CN2521818Y - Improved motor

Info

Publication number: CN2521818Y
Application number: CN 02204021
Authority: CN
Inventors: 陈秀凤
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-01-30
Filing date: 2002-01-30
Publication date: 2002-11-20
Anticipated expiration: 2012-01-30

Abstract

The utility model relates to an improved motor. The motor is provided with a novel motor stator and a novel rotor to make the motor show a planar magnetic field effect, produce an electromotive force and rotate, so the motor dimension is reduced, the torque is increased, and no brush is required. The utility model mainly comprises two fixing plates, an external shell, a bearing, an iron core with a stator slot, a magnet with a rotary shaft and a reinforced fixing plate, and a polarity detector. The stator slot of the iron core is designed based on the set pole number and a coil is wound around the slot and forms a stator device with the fixing plates. The rotary shaft and the reinforced fixing plate assembled by the magnet form the corresponding rotor. The magnet of the rotor is provided with the magnetism in advance symmetrical with the stator polarity, and is arranged above the stator iron core in the planar way. When the coil passes, the polarity detector detects the polarity of the rotator magnet to make sure that the stator corresponds to the magnet with the same polarity. The course is repeated to ensure that the stator and the rotator repel each other with the same polarity. Thus, the rotor can be driven to rotate.

Description

Improved motor

Technical field

The utility model relates to a kind of improved motor, relates in particular to the brushless motor of a kind of plane formula electromotive force effect.

Background technology

Usually, the structural principle of traditional type motor, substantially as shown in Figure 1, it has long cylindrical case 3, is provided with the stator 1 of hollow tube-shape in it, and certainly, stator 1 is to be made of unshakable in one's determination, coiling; And having the rotor 2 of rotating shaft 32 in stator 1 central space setting, this rotor 2 uses nickel (or aluminium) (encirclement rotating shaft) to make iron core, and is provided with fluting so that winding is placed magnetizing coil; In the time will moving and use, the essential brush 4 that makes on stator energising and the rotor, energising simultaneously makes the magnetizing coil to rotor carry out excitatory, make rotor produce magnetic polarity, in the rotating magnetic field that N, S apply, produce revolving electro-motive force, and make rotor rotation, be the structure and the action of traditional type motor; Yet according to above-mentioned explanation, by carefulness research, it has following shortcoming as can be known:

(1) it is a kind of stator, rotor structure of cylinder cover type, the effect of its electromotive force shows as the magneticaction of disc convex line, and therefore bigger if desired torque then needs rotor, stator design are become longer, its whole volume is bigger, and heavy and take up room.

(2) structure of rotor is complicated, and in order to make polarity and stator polarity consistent of rotor, carries out excitatory to rotor at any time and must make a brush; Be understandable that,,, also can cause wear-out failure though its coefficient of friction is minimum because brush contacts with long-term, the high speed of rotor.

(3) the excitatory also relatively power consumption of brush is set.

Therefore, the design people is according to the defective of above-mentioned traditional type motor, through further investigation, finally design a kind of non-cylindric, it is the brushless motor structure of plane formula stator, rotor, it has overcome the shortcoming of above-mentioned traditional type motor, the effect that make that motor has that volume reduces that (ultra-thin), noise are low, power saving and torque improves.

Summary of the invention

In order to overcome the shortcoming of above-mentioned conventional motor, the utility model provides the non-cylindric of a kind of novelty, it is the plane formula stator, the brushless motor of rotor, it has overcome the deficiency of traditional type motor, stator with motor, rotor structure is designed to non-cylinder mulching method, rotor leans on stator mutually with plane form, by the polarity of stator being kept the polarity homopolarity with rotor, and produce comprehensive electromotive force, thereby drive the effect of rotor rotation, dwindle the motor volume to reach, brushless, the rotation effect of big torque makes that the volume of motor reduces (ultra-thin), noise is low, power saving and torque are improved.

The utility model provides a kind of improved motor, and it mainly comprises: have two fixed heads of bearing, polarity detector, shell, rotor and stator; Wherein, these two fixed heads, a fixed head which is provided with standing groove, just can install polarity detector, and another fixed head is provided with an internal protection shell and becomes one with stator pack; This polarity detector is connected with stator coil, but and the residing polarity of detection rotor magnet, and make the polarity of stator coil produce corresponding with the polarity homopolarity of rotor; This rotor is formed by being wholely set intrinsic rotating shaft, magnet, enhancing fixed head; Its magnet has preestablished N, the S utmost point magnetic of required number of poles; This stator is made up of a lamination, offers on this iron core according to the stator slot of setting number, and coil then presents multilayer according to the rotor number of poles and distributes, and a groove winding is arranged at stator slot, and forms and the polarity of rotor with number of poles;

Rotating shaft one end of rotor is sheathed in the dead eye of stator fixed head, again the fit shell to another fixed head, the locking of fitted bolt, and form a complete motor configuration; And the magnet of this rotor is that magnetic plane formula correspondence is arranged on the stator coil, presents a kind of structure of stator, rotor relation and planar magnetic field action of whole plane.

According to above-mentioned explanation, the utlity model has following advantage:

(1) version because of rotor 20 is designed to sheet, and presents the whole plane formula and act on mutually with the magnetic field of stator 10, therefore can reduce great volume, and make it light and handy, has utilizable practicality.

(2) the excitatory setting of brushless can reduce failure rate and comparatively power saving.

(3) rotor design slabbing alnico magnets formula, simple in structure, make simple and easy and reduce cost.

(4) be under the situation that acts on the whole plane tangent line that magnetic induction electromotive force produced of plane formula, thereby will be improved, that is to say, in the comparison with number of poles, therefore torque of the present utility model improves.

(5) plane formula effect, the vibration that is produced is less, and noise is less.

In sum, the utility model be improved to the sheet plane formula, and it is many that its volume is reduced with straight tube cover type stator, the rotor of traditional type, and therefore characteristics such as its relevant noise, power saving, torque also improve, and have the effect of practicality and enhancing.

Description of drawings

For making those skilled in the art, effect of the present utility model there is understanding more completely, existing conjunction with figs. and label with regard to structure of the present utility model, action, feature etc., give detailed explanation, wherein:

Fig. 1 is the stereoscopic figure (A) and the structure cutaway view (B) of traditional type motor;

Fig. 2 is stereoscopic figure (A) and the structure cutaway view (B) according to motor apparatus of the present utility model;

Fig. 3 is the three-dimensional exploded view according to motor apparatus of the present utility model;

Fig. 4 is the stator of motor apparatus of the present utility model and the schematic diagram of winding coil thereof;

Fig. 5 is the stator of motor apparatus of the present utility model and the combining form schematic diagram of rotor.

Embodiment

See also Fig. 2,3, structural group of the present utility model becomes, and it mainly comprises: two

fixed heads

40,41, polarity detector 50, shell 30, rotor 20, stator 10 with bearing 42; Wherein, be provided with standing groove 44 in these

fixed head

40,41, one fixed heads 40, just can install polarity detector 50, on another fixed head 41 an internal protection shell 60 is set and consists of one with stator 10; This polarity detector 50 is connected with the coil 11 of stator 10, but and the magnet 21 residing polarity of detection rotor 20, and make the polarity of the coil 11 of stator 10 produce corresponding with rotor 20 homopolarities; This rotor 20 is made of the intrinsic rotating shaft 22 that is wholely set, magnet 21, enhancing fixed head 23; Its magnet 21 has preestablished N, the S utmost point magnetic of required number of poles; This stator 10, be made up of a lamination 12, this iron core 12 offers according to the stator slot 13 of setting number on it, and coil 11 is to be multilayer to distribute according to the number of poles of rotor 20, between the groove winding be arranged at stator slot 13 places, and form and N, the S polarity of rotor 20 with number of poles; Rotating shaft 22 1 ends of rotor 20 are sheathed in bearing 42 holes of fixed head 41 of stator 10, fit shell 30 and another fixed head 40 again, the locking of fitted bolt 43, and form a complete motor configuration.And the magnet 21 of this rotor 20 is that magnetic plane formula correspondence is arranged on the coil 11 of stator 10, presents a kind of stator, rotor relational structure of whole plane.

See also Fig. 4,5, motion of the present utility model, efficacy characteristics are: as shown in Figure 4, stator 10 designed numbers of poles are to determine according to the number of poles of rotor 20, form according to N, the S magnetic magnetic field of setting number of poles and present, so the utility model can be arranged to or four utmost points or the sextupole or the ends of the earth according to the interval job-hopping of setting (for example five lattice), multilayer (for example three layers) coiling ... or the like; While actually employed, stator 10 energisings, be the N utmost point (or S utmost point) through the polarity that polarity detector 50 can detect corresponding rotor 20 immediately this moment, and the coil 11 that makes stator 10 produces the identical N utmost point (or S utmost point) polarity, therefore the homopolarity magnetic line of force of stator will make the magnetic line of force promotion that magnet 21 is cut, and make the rotating shaft 22 of rotor 20 rotate, that is to say, by transition magnetic field polarity, and can make rotor rotation, its speed is 120/P * f2=120 * Sf/P=S120f/P=SNs, f=supply frequency, S=rotor rotation revolutional slip, the SNs=rotary magnetic field surpasses the part of spinner velocity, so Ns (1-S)+SNs=Ns for static stator coil, no matter why S is worth, the magnetic induction electromotive force of rotor also is with synchronous speed rotation for stator coil; In addition, above-mentioned explanation is to be example with motor (motor), and its substantial structure of generator is identical with motor, it is to drive rotating shaft (rotor) with external force (firepower, waterpower, nuclear energy, wind-force), stator coil is produced, therefore, if above-mentioned structure is generated electricity with the form of generator, also belong within the intention category of the present utility model.

Claims

1. an improved motor mainly comprises: have two fixed heads of bearing, polarity detector, shell, rotor, and stator; It is characterized in that,

These two fixed heads, one of them fixed head is provided with standing groove, just can install polarity detector, and another fixed head is provided with an internal protection shell and becomes one with stator pack;

This polarity detector is connected with stator coil;

This rotor is formed by the intrinsic rotating shaft that is wholely set, magnet, enhancing fixed head; Its magnet has preestablished N, the S utmost point magnetic of required number of poles;

This stator is made up of a lamination, offers on this iron core according to the stator slot of setting number, and coil then presents multilayer according to the rotor number of poles and distributes, and a groove winding is arranged at stator slot, and forms and the polarity of rotor with number of poles;

Rotating shaft one end of rotor is sheathed in the dead eye of stator fixed head, and the fit shell is fixed to another fixed head again, forms a complete motor.