CN205565937U - Embedded type brushless DC motor magnetic ring - Google Patents

Abstract

The utility model relates to an embedded type brushless DC motor magnetic ring, embedded type brushless DC motor magnetic ring be the whole magnetic ring of cavity drum type, wherein cavity drum inner wall is equipped with the gomphosis groove of sunken form, the gomphosis groove ability and the perfect gomphosis in the gomphosis groove of the protruding form of rotor of sunken form, the realization is rotated well in coordination. The outer circumference cladding one deck plastic cover of magnetic ring, the fricative effect that plays the silence is simultaneously avoided to the protection magnetic ring.

Description

A kind of inserted type brshless DC motor magnet ring

Technical field

This utility model relates to direct current generator magnet ring, particularly to a kind of inserted type brshless DC motor magnet ring.

Background technology

Direct current generator magnet ring of the prior art is integrally fixed on armature spindle usually through rotor set, due to Not having mutual fitting apparatus between this magnet ring and described armature spindle, when motor works, described magnet ring is with described Synergic rotation can not be carried out well, owing to mutual rubbing action therebetween can produce relatively between armature spindle Many heats and produce bigger noise, not only reduce the performance of motor, and there is bigger safety Hidden danger.

Utility model content

Based on this, the technical assignment of the technical problems to be solved in the utility model and proposition is to prior art side Case is improved, it is provided that a kind of inserted type brshless DC motor magnet ring, described inserted type brushless direct-current Motor magnet ring is hollow cylinder type entirety magnet ring, and wherein, the inwall of hollow cylinder is provided with the embeded slot of recess. The embeded slot of this recess can be chimeric with the embeded slot perfection of armature spindle convex shape, it is achieved synergic rotation well, Thus solve the motor performance caused because magnet ring and armature spindle concertedness difference and decline, continuous high temperature heating with And the problem such as noise is bigger.

Further, the embeded slot of described recess circular array regularly, the embeded slot of described recess It is arranged at radial direction and the axial direction of described magnet ring.

Further, when the embeded slot of described recess is radially distributed, this embeded slot can be with The cylinder of rounding and the cylinder of chimeric trapezoidal shape.When described recess embeded slot in axial direction During distribution, this embeded slot is cylindric strip groove.

Further, the quantity of the embeded slot of described recess is even number, and is evenly distributed on described magnet ring Hollow cylinder inwall on.This setting, so that magnet ring uniform force when running up, operates steadily.

Further, described inserted type brshless DC motor magnet ring is magnetic Nd-Fe-B ring, and the magnet ring of this material can To ensure the permanent and stability of magnet ring magnetic.

Further, the excircle of described inserted type brshless DC motor magnet ring is coated with one layer of garment bag.Institute State garment bag and also play muting function while protection magnet ring avoids abrasion.

Accompanying drawing explanation

Fig. 1 is the axial section view of the inserted type brshless DC motor magnet ring that this utility model first embodiment proposes Figure.

Fig. 2 is the axial section view of the inserted type brshless DC motor magnet ring that this utility model the second embodiment proposes Figure.

Fig. 3 is that the radial direction of the inserted type brshless DC motor magnet ring that this utility model the 3rd embodiment proposes is overlooked Figure.

Detailed description of the invention

For the ease of understanding this utility model, below with reference to relevant drawings, this utility model is carried out more comprehensively Description.Accompanying drawing gives first-selected embodiment of the present utility model.But, this utility model can be to be permitted The most different forms realizes, however it is not limited to embodiment described herein.On the contrary, provide these to implement The purpose of example is to make to disclosure of the present utility model more thoroughly comprehensively.

Referring to Fig. 1, Fig. 1 is the inserted type brshless DC motor magnetic that first embodiment of the present utility model proposes The axial planing surface structure of ring 10.This inserted type brshless DC motor magnet ring is hollow cylinder type entirety magnet ring 10, Wherein, hollow cylinder inwall 20 is provided with the embeded slot 30a of recess, the shape of described recess embeded slot 30a Shape is the cylindrical shape of band rounding.

Described recess embeded slot 30a is distributed on hollow cylinder inwall 20 ringwise, and arranges in rotating shaft Convex shape be fitted together to post (not marking in figure) and match nesting, with ensure described brshless DC motor magnet ring 10 with Rotating shaft realizes synergic rotation well.The quantity of described recess embeded slot 30a is even number, and this arranges permissible Make magnet ring uniform force when running up, operate steadily.

Described inserted type brshless DC motor magnet ring 10 is magnetic Nd-Fe-B ring, and the magnet ring of this material can ensure that magnetic Permanent and the stability of ring magnetic.

The excircle of described inserted type brshless DC motor magnet ring 10 is coated with one layer of garment bag 40.Described plastic cement Set 40 also plays muting function while protection magnet ring avoids abrasion.

Referring to Fig. 2, Fig. 2 is the inserted type brshless DC motor magnetic that the second embodiment of the present utility model proposes The axial planing surface structure of ring 10.The scheme of this embodiment is more or less the same with the scheme of first embodiment, distinguishes In: be arranged at the recess embeded slot 30b at hollow cylinder inwall 20 is shaped as chimeric trapezoidal shape.This is embedding The embeded slot 30b closing trapezoidal shape can realize the most chimeric work with the chimeric post of the convex shape of setting in rotating shaft With.Additionally, the shape of described embeded slot includes, but are not limited to above-mentioned cylinder with rounded corners and embedding Closing trapezoidal, other can make to reach well to be fitted and fixed with effect between inserted type direct current generator magnet ring and rotating shaft Structure also in protection domain of the present utility model.

Referring to Fig. 3, Fig. 3 is the inserted type brshless DC motor magnetic that the 3rd embodiment of the present utility model proposes The radial direction plan structure of ring 10.The scheme of this embodiment is more or less the same with the scheme of above-mentioned the one the second embodiments, Difference is: being arranged at the recess embeded slot at hollow cylinder inwall 20 is cylinder bar shaped in axial direction Embeded slot 30c.

The cylinder bar shaped post of the axial direction matched with it on described cylinder bar shaped embeded slot 30c and armature spindle (not indicating in figure) is mutually fitted together to, thus reaches well to be fitted together to effect.Meanwhile, described The shape of embeded slot can also include, but are not limited to triangle, hexagon etc., and other can make inserted type straight Reach well to be fitted and fixed with the structure of effect also guarantor of the present utility model between stream motor magnet ring and armature spindle In the range of protecting.

Further, described inserted type brshless DC motor magnet ring 10 is magnetic Nd-Fe-B ring, the magnet ring of this material Can ensure that the permanent of magnet ring magnetic and stability.

Further, the excircle of described inserted type brshless DC motor magnet ring 10 is coated with one layer of garment bag 40. Described garment bag 40 also plays muting function while protection magnet ring avoids abrasion.

A kind of inserted type brshless DC motor magnet ring that this utility model provides, by the hollow cylinder at magnet ring Inwall arranges the embeded slot of the recess chimeric post corresponding with rotating shaft and realizes being fitted together to well so that magnet ring with Synergic rotation well is achieved between rotating shaft.Avoid and draw due to the rubbing action between magnet ring and rotating shaft The persistent fever that rises and a series of factors causing motor performance to decline such as noise is excessive.Additionally, at magnet ring Excircle one layer of garment bag of cladding, has further functioned as muting function while protection magnet ring avoids abrasion.

Embodiment described above only have expressed several embodiments of the present utility model, its describe more concrete and In detail, but therefore can not be interpreted as the restriction to this utility model the scope of the claims.It should be pointed out that, For the person of ordinary skill of the art, without departing from the concept of the premise utility, it is also possible to Making some deformation and improvement, these broadly fall into protection domain of the present utility model.Therefore, this utility model The protection domain of patent should be as the criterion with claims.

Claims (7)

1. an inserted type brshless DC motor magnet ring, described magnet ring is hollow cylinder type entirety magnet ring, described Magnet ring is suitable to be fixed on armature spindle by rotor set, it is characterised in that described inserted type brshless DC motor The hollow cylinder inwall of magnet ring is provided with the embeded slot of recess.

Inserted type brshless DC motor magnet ring the most according to claim 1, it is characterised in that described recessed Falling into the embeded slot circular array regularly of shape, the embeded slot of described recess is arranged at the radial direction of described magnet ring With axial direction.

Inserted type brshless DC motor magnet ring the most according to claim 2, it is characterised in that described recessed Fall in the cylinder with rounding that embeded slot is radially even distribution of shape or the cylinder of chimeric trapezoidal shape One.

Inserted type brshless DC motor magnet ring the most according to claim 2, it is characterised in that described recessed The embeded slot falling into shape is the most equally distributed cylindric strip groove.

5., according to the inserted type brshless DC motor magnet ring described in any one of Claims 1-4, its feature exists In, the quantity of the embeded slot of described recess is even number.

Inserted type brshless DC motor magnet ring the most according to claim 5, it is characterised in that described embedding Box-like brshless DC motor magnet ring is magnetic Nd-Fe-B ring.

Inserted type brshless DC motor magnet ring the most according to claim 6, it is characterised in that described embedding The excircle of box-like brshless DC motor magnet ring is coated with one layer of garment bag.