CN200959560Y

CN200959560Y - AC permanent-magnetic claw polarized synchronizing motor

Info

Publication number: CN200959560Y
Application number: CN 200620106986
Authority: CN
Inventors: 吴巧娟
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-08-18
Filing date: 2006-08-18
Publication date: 2007-10-10
Anticipated expiration: 2016-08-18

Abstract

An alternating-current permanent magnetic claw pole synchronous motor, which comprises from inside out a rotor set, a stator set and an electric motor outer shell. The characteristics are that: The stator set comprises at least two stators with the same structure, the rotor set also comprises at least two rotors with the same structure, the number of the rotors of the rotor set is the same with and one-to-on corresponding to the number of the stators of the stator set respectively, and each rotor cluster is arranged on the same rotor axis. Each of the stator can all have two coils of the axial juxtaposed windings to be suitably applied in places that need positive and negative rotations such as electric curtain, and one of the windings of each stator is all connected with the same capacitor phase of the separate phase in a cascading manner. The utility model can effectively increase the output torque under situations without increasing the outer diameter of the electric motor by increasing the number of rotors in the axial direction and the number of correspondent stators compared with current technology, and the rotation speed is stable, the noise is low, thus can satisfy use as the power source of the electric curtain.

Description

A kind of AC permanent-magnet claw electrode synchronization electromotor

Technical field

The utility model relates to a kind of ac synchronous motor, particularly a kind of AC permanent-magnet claw electrode synchronization electromotor.

Background technology

At present, electrically driven curtain is widely used in places such as home dwelling, hotel, gymnasium, bank, school, office, office building, electrically driven curtain has generally comprised electric rolling, electric horizontal-opening curtain, electric up-down curtain, electronic Roman shade, electric sunshading curtain, electronic ceiling curtain, and these products often adopt direct current machine to start and turn round; Simultaneously, these products have a common feature to require mechanism small and exquisite exactly, and promptly the motor external diameter is the smaller the better, but actuating force is the bigger the better, and require running noise of motor the smaller the better.Yet the direct current machine characteristics are that gear reduction ratio increases along with rotating speed improves, thereby running noise also increases thereupon, and obviously this does not meet people's requirement.Therefore direct current machine is just progressively replaced by AC asynchronous motor or ac synchronous motor as the power source of electrically driven curtain, simultaneously because AC induction motor is relatively poor because of reliability, energy consumption is big, noise is big and volume is big, and rotating speed is generally more than 1000 rev/mins, because of electrically driven curtain generally requires rotating speed lower, so just can reach requirement after also needing to slow down, AC induction motor efficient is lower in addition, thereby has more producer to select for use ac synchronous motor to make the power source of electrically driven curtain at present.This be because: first ac synchronous motor can be at an easy rate reaches rotating speed below 250 rev/mins by increasing number of pole-pairs, and slows down by one-level at most and just can reach the instructions for use of electrically driven curtain; Second adopts AC permanent magnet synchronous motor efficient higher relatively, and production cost is also lower.Therefore AC permanent magnet synchronous motor is widely adopted.But compare direct current machine, still there is big this contradiction of volume in AC permanent magnet synchronous motor, makes product design huge and not attractive in appearance.In order to keep certain output torque, also can't reduce the motor external diameter simultaneously, so general producer all reaches instructions for use by multipole deceleration again with high rotating speed.Thereby make product shape huge, noise is also bigger.

Summary of the invention

Technical problem to be solved in the utility model is that a kind of AC permanent-magnet claw electrode synchronization electromotor that the motor external diameter also can keep big output torque that need not to increase is provided at above-mentioned prior art present situation.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: this AC permanent-magnet claw electrode synchronization electromotor, include rotor set, stator pack and motor housing from inside to outside, it is characterized in that: described stator pack includes at least two stators that structure is identical, described rotor set also comprises at least two rotors that structure is identical, the rotor quantity of described rotor set is identical with the stator quantity of stator pack and corresponding one by one respectively, and each rotor string is located on the same roots rotor axle.

For being fit to be applied to the occasion such as needs rotatings such as electrically driven curtains, described each stator can all include axially two coils of winding side by side, and is in series with a split-phase capacitor in a wire loop therein.In order to guarantee the whole synchronism of motor, one of them coil in described each stator all is in series with same split-phase capacitor.

In order to guarantee the homogeneity of each rotor, described rotor consists of good with the rotor magnetic steel that is magnetized by one piece, and its magnetic pole logarithm is preferably 4～12 utmost points, and the pawl number of pole-pairs of described stator is corresponding with the rotor magnetic pole logarithm.

Compared with prior art, the utility model is by axially increasing rotor number and corresponding stator quantity, can under the situation that does not increase the motor external diameter, effectively increase output torque, and stabilization of speed, noise are little, thereby can satisfy as uses such as electrically driven curtain power sources.

Description of drawings

Fig. 1 is the stereochemical structure partial cutaway schematic of the utility model embodiment;

Fig. 2 is the sectional arrangement drawing of the rotor set of Fig. 1;

Fig. 3 is the three-dimensional cutaway view of the stator pack of Fig. 1;

Fig. 4 is the wiring schematic diagram of the utility model embodiment.

Embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

Shown in Fig. 1～4, it is an AC permanent-magnet claw electrode synchronization electromotor as the electrically driven curtain power source, it wraps up rotor set 6 that is made of two rotors and the stator pack 7 that is made of two stators by motor housing 1, two rotor strings of rotor set 6 are located at same and traverse on the armature spindle 2 at motor housing 1 center, and two stators with stator pack are corresponding respectively; One end connection bearing 8 of armature spindle 2, the other end is connected on the output shaft 3 by the reduction gearing 41 of reduction box 4, and the middle part is with axle sleeve 5; 4 of reduction boxes are connected in the upper end of motor by jump ring 42, between output shaft 3 and armature spindle 2, referring to Fig. 1;

Each rotor is located at the rotor skeleton 62 on the axle sleeve 5 and is fixed on rotor magnetic steel 61 on the skeleton, that one piece magnetizes by string to be formed, referring to Fig. 1 and 2; In order to guarantee the consistent of each rotor magnetic pole, magnetic direction and magnetic field intensity, described rotor is made of the rotor magnetic steel that one piece magnetizes, and each rotor magnetic pole logarithm equates pole orientation and angular alignment; The magnetic pole logarithm generally can be preferably 4～12 utmost points;

Each stator comprises two

coil

71a and 71b, and they and are separately fixed on pawl utmost point 73a and the 73b respectively on

coil rack

72a and 72b, referring to Fig. 1 and 3; Each coil of described stator can adopt Circular Winding, and the pawl number of pole-pairs is corresponding with the magnetic pole logarithm of described rotor magnetic steel, and described each coil and described pawl utmost point co-axially align;

The same split-phase capacitor of all connecting of one of them wire loop in each stator wherein, and, also including a rotating diverter switch, two double-throw contacts of switch link to each other with the both positive and negative polarity of electric capacity respectively, referring to Fig. 4.

Claims

1, a kind of AC permanent-magnet claw electrode synchronization electromotor, include rotor set, stator pack and motor housing from inside to outside, it is characterized in that: described stator pack includes at least two stators that structure is identical, described rotor set also comprises at least two rotors that structure is identical, the rotor quantity of described rotor set is identical with the stator quantity of stator pack and corresponding one by one respectively, and each rotor string is located on the same roots rotor axle.

2, AC permanent-magnet claw electrode synchronization electromotor according to claim 1 is characterized in that: described each stator all includes axially two coils of winding side by side, and is in series with a split-phase capacitor in a wire loop therein.

3, AC permanent-magnet claw electrode synchronization electromotor according to claim 2 is characterized in that: one of them coil in described each stator all is in series with same split-phase capacitor.

4, AC permanent-magnet claw electrode synchronization electromotor according to claim 1, it is characterized in that: described rotor is made up of the rotor magnetic steel that one piece magnetizes.

5, according to the described AC permanent-magnet claw electrode synchronization electromotor of arbitrary claim in the claim 1 to 4, it is characterized in that: described rotor magnetic pole logarithm is 4～12 utmost points, and the pawl number of pole-pairs of described stator is corresponding with the rotor magnetic pole logarithm.