CN205647060U - A angle mode silicon steel sheets such as non - for motor - Google Patents

Abstract

The utility model relates to an angle mode silicon steel sheets such as non - for motor, it has a ring portion, and there are a plurality of main teeth, vice tooth and end terminal in this ring portion. These main teeth, vice tooth become one with ring portion design respectively and certain distance of being separated by each other, and every main tooth is between second mate's tooth. These end terminals are connected corresponding main tooth, vice tooth and are extended along the circumferencial direction to the cooperation of two adjacent end terminals is main, vice bidentate encloses into a winding space with ring portion, permits at least one electrically conductive wire winding group, gets into winding space via an opening that forms between the two adjacent end terminals, make wire winding group with the number of turns winding of difference on main, vice bidentate, the total length of reduction metal wire, relative reduction in production cost, motor change the moment of torsion, reach to slow down to vibrate and effect such as low noise.

Description

Non-angularly formula stalloy for motor

Technical field

This utility model belongs to motor technologies field, particularly to the stalloy of a kind of radial coiling stator constituting motor.

Background technology

In recent years, the improved efficiency of permanent magnet type synchronous motor, becoming DC Brushless Motor (Brushless DC Motor) in conjunction with advanced power electronics actuation techniques, existing gradually replacement Traditional DC motor, alternating current motor also apply the trend at industrial products such as such as printer, sports equipment, air conditioner, fan or numeral facility.

Permanent magnetic brushless motor has rotor and stator, and stator is wound around by coiling group, and after powered up, coiling group produces electromagnetic action, drives rotor to rotate relative to stator.This stator is the overlay structure body of some stalloys, and the shape of these stalloys is roughly the same, constitutes the stator structure of radial windings.

Each stalloy has suitable thickness, and possess good permeance, basic structure can be manufactured into: a ring portion radially extends multiple tooth via industry, two teeth coordinate ring portion to surround a winding space, the free end of each tooth forms a pole shoe along circumferencial direction, define diode boot spaced apart for opening, it is allowed to the conductive metal wire of coiling group enters corresponding winding space by opening.

First, the angle of each tooth is identical, so conductive metal wire is the most around the number of turn of tooth, makes the total length of metal wire remain high, relatively improves the cost of manufacture of motor.

Secondly, during motor output torque, rotor cover can change along with rotating relative to position opening, the magnetoresistance of air gap, the magnetic flux of magnetic circuit all can change with magnetic field energy, and then produce vibrations and noise.

Therefore, how to improve motor and there is drawback for a long time, just become the problem that this utility model is urgently to be resolved hurrily.

Utility model content

This utility model is for the deficiencies in the prior art, and main purpose is to provide a kind of non-angularly formula stalloy for motor.

For reaching above-mentioned purpose, solution of the present utility model is:

This utility model provides a kind of stalloy for motor, its main purpose is: use the structure of major and minor two between cog different angles, effectively reduces the total length of metal wire, relative reduction production cost, motor start and stop torque, reach the effects such as slowing down vibration and low noise, promote the competitiveness in market.

In order to reach above-mentioned purpose, stalloy of the present utility model has a ring portion, this ring portion has some main teeth, secondary tooth and pole shoe, these are main, secondary tooth is designed to one respectively and is separated by a certain distance with ring portion, each main tooth is between second mate's tooth, these pole shoes connect corresponding main, secondary tooth and extending along circumferencial direction, coordinate main with two adjacent pole shoes, secondary two teeth surround a winding space with ring portion, allow the coiling group of at least one conduction, winding space is entered via the opening formed between two adjacent pole shoes, coiling group is made to be wrapped in master with the different numbers of turn, on secondary two teeth.

Ring portion in stalloy has some positive arms of angle being connected with each other and limit, drift angle, ring portion is made to become polygon lamellar body, each positive arm of angle and main tooth are designed to one, a positive-angle is formed from the central point of the positive arm of angle two end to ring portion, limit, each drift angle is designed to one with secondary tooth, forming an inclination angle from the central point of limit, drift angle two end to ring portion, this positive-angle maintains one of ratio of 8:7 or 7:8 with inclination angle.In a preferred embodiment, positive-angle can be equal to 48 degree, and inclination angle can be equal to 42 degree.

In a preferred embodiment, can add at least one breach at pole shoe, this breach coordinates opening to reduce the start and stop torque of motor.

Owing to using such scheme, the beneficial effects of the utility model are:

First, just, the number of turn that the existence of inclined two angles causes coiling group to be wound in main tooth can be more than the number of turn being wound in secondary tooth, it is possible to the total length of reduction metal wire, relative reduction production cost.

Secondly, each pole shoe has two breach, and this breach coordinates opening to obtain isogonism or equidistant structure, it is possible to decrease start and stop torque, reaches the effects such as slowing down vibration and low noise, promotes the competitiveness in market.

Accompanying drawing explanation

Fig. 1 is the plane graph of an embodiment of stalloy of the present utility model.

Reference

Stalloy 10, ring portion 20, central point 21, the positive arm of angle 22, limit, drift angle 24, positive-angle 26, inclination angle 28, main tooth 30, pole shoe 32, breach 34, secondary tooth 40, pole shoe 42, breach 44, winding space 50, opening 52.

Detailed description of the invention

As it is shown in figure 1, illustrating stalloy 10 of the present utility model is polygon lamellar body, its thickness is about 13mm.This stalloy 10 includes: a ring portion 20, some main teeth 30, some secondary teeth 40 and some pole shoes 32,42.

In the present embodiment, the outline of this ring portion 20 substantially designs in quadrangle, has and is similar to octagonal Internal periphery and divides into: one group of positive arm of angle 22 and limit, one group of drift angle 24.In certain embodiments, the inside and outside profile of this ring portion 20 can also be other geometry.

Each positive arm of angle 22 is parallel to the corresponding limit of ring portion 20 outline, and it is designed to one with main tooth 30, forms a positive-angle 26 from the central point 21 of the positive arm of angle 22 2 end to ring portion 20.

Limit, each drift angle 24 is facing to the corner of ring portion 20 outline, and it is designed to one with secondary tooth 40, makes limit, drift angle 24 connect the two adjacent positive arms of angle 22, can form an inclination angle 28 from the central point 21 of limit, drift angle 24 2 end to ring portion 20.

The ratio of positive-angle 26 and inclination angle 28 about (i.e. can take any one ratio between 8:7 to 7:8) between 8:7 to 7:8.Therefore, when this positive-angle 26 about 48 degree, this inclination angle 28 is about 42 degree, meets the ratio of 8:7.In certain embodiments, when this positive-angle 26 is about 42 degree, and this inclination angle 28 is about 48 degree, then in accordance with the ratio of 7:8.Because the positive-angle 26 of stalloy 10 and inclination angle 28 are unequal, so this stalloy 10 can be referred to as again non-angularly formula stalloy.

These major and minor teeth 30,40 are in a certain distance apart from one another, each main tooth 30 is between second mate's tooth 40, so that each pole shoe 32,42 connects corresponding major and minor tooth 30,40, (i.e. pole shoe 32 connects corresponding main tooth 30, pole shoe 42 connects corresponding secondary tooth 40), and extend along circumferencial direction.Two adjacent pole shoes 32,42 coordinate major and minor tooth 30,40 to surround a winding space 50 with ring portion 20.Diode boot 32,42 keeps at a certain distance away and is for opening 52, it is allowed to the coiling group (not shown) of at least one conduction enters winding space 50 via opening 52 and is engaged in winding operation.

First, this just, the existence of inclined two angles 26,28, causing coiling group to be wound in the number of turn of main tooth 30 can be more than the number of turn being wound in secondary tooth 40, the total length of reduction metal wire, relative reduction production cost.

Secondly, each pole shoe 32,42 has two breach 34,44, and this breach 34,44 coordinates opening 52 to obtain isogonism or equidistant structure, it is possible to decrease start and stop torque, reaches the effects such as slowing down vibration and low noise, promotes the competitiveness in market.

Claims (4)

1. the stalloy for motor, it is characterised in that: it has a ring portion, and this ring portion has some main teeth, secondary tooth and pole shoe, These main teeth, secondary tooth are integrally forming and are separated by a certain distance respectively with ring portion, each main tooth between second mate's tooth, these poles Boots connect corresponding main tooth, secondary tooth and extend along circumferencial direction, coordinate main tooth, secondary tooth with two adjacent pole shoes and surround with ring portion One winding space, it is allowed to the coiling group of at least one conduction enters winding space via the opening formed between two adjacent pole shoes, Coiling group is made to be wrapped on main tooth and secondary tooth with the different numbers of turn.

Stalloy for motor the most according to claim 1, it is characterised in that: wherein, this ring portion has some phases each other The positive arm of angle even and limit, drift angle, make ring portion become polygon lamellar body, and each positive arm of angle is integrally forming with main tooth, from the positive arm of angle two end to The central point of ring portion forms a positive-angle, and limit, each drift angle is integrally forming with secondary tooth, is formed from the central point of limit, drift angle two end to ring portion One inclination angle, this positive-angle and inclination angle maintain any proportion of 8:7 to 7:8, and positive-angle is not equal to inclination angle.

Stalloy for motor the most according to claim 2, it is characterised in that: wherein, this positive-angle is equal to 48 degree, This inclination angle is equal to 42 degree.

Stalloy for motor the most according to claim 1, it is characterised in that: wherein, this pole shoe has at least one breach, This breach coordinates opening to reduce the start and stop torque of motor.