CN202798219U

CN202798219U - Rotor structure of motor

Info

Publication number: CN202798219U
Application number: CN201220438930.1U
Authority: CN
Inventors: 潘明攀; 刘骁
Original assignee: Zhongshan Broad Ocean Motor Co Ltd
Current assignee: Zhongshan Broad Ocean Motor Co Ltd
Priority date: 2012-08-30
Filing date: 2012-08-30
Publication date: 2013-03-13
Anticipated expiration: 2022-08-30

Abstract

The utility model discloses a rotor structure of a motor. The rotor structure comprises an inner iron core (1) and an outer iron core (2), wherein a connecting layer (3) is arranged between the inner iron core (1) and the outer iron core (2), and a through hole (31) is arranged in the middle of the connecting layer (3); and fasteners (32) protrude out of two sides of the ends of the through hole (31) and two ends of the connecting layer (3), are buckled on the top surface and the bottom surface of the inner iron core (1) and the outer iron core (2), and connect the inner iron core (1) and the outer iron core (2) together. The rotor structure is simple in structure, easy to install, low in cost, good in damping effect and capable of reducing noise.

Description

A kind of motor rotor construction

Technical field:

The utility model relates to a kind of motor rotor construction.

Background technology:

Traditional motor damping rotor, comprise internal layer iron core and outer iron core, internal layer iron core and outer iron core connect by middle buffer layer, two end plates are installed in the end of inside and outside layer iron core and buffer layer by rivet, there is following shortcoming in this structure: 1) parts are more, complex structure is installed trouble, and cost is high; 2) buffer layer is generally solid construction, and damping effect is poor, and noise is large.

Summary of the invention:

The purpose of this utility model provides a kind of motor rotor construction, and this is simple in structure, installs simple and easyly, with low cost, and good damping effect reduces noise.

The purpose of this utility model is to be achieved by following technical scheme.

A kind of motor rotor construction, comprise internal layer iron core and outer iron core, be provided with articulamentum between internal layer iron core and the outer iron core, be provided with through hole in the middle of the articulamentum, protrude fastener at the two ends of both sides, through hole end, articulamentum, fastener is buckled on the end face of internal layer iron core and outer iron core and the bottom surface and with internal layer iron core and outer iron core and connects.

Articulamentum described above is the highly elastic material injection mo(u)lding.

The lateral surface of internal layer iron core described above is offered some outer grooves, and the medial surface of outer iron core is offered some inner groovies, and articulamentum embeds in outer groove and the inner groovy.

Offer the axis hole that rotating shaft is installed in the middle of the internal layer iron core described above.

The lateral surface of outer iron core described above is pasted some permanent magnets.

Some outer groove described above is distributed on the lateral surface of internal layer iron core, and some inner groovies are distributed on the medial surface of outer iron core, and outer groove is radially corresponding with the position of inner groovy.

The utility model beneficial effect compared with prior art is: 1) be provided with through hole in the middle of the utility model articulamentum, fastener is protruded at two ends at both sides, through hole end, articulamentum, fastener is buckled on the end face of internal layer iron core and outer iron core and the bottom surface and with internal layer iron core and outer iron core and connects, just can finish by single injection-molded, simple in structure, install simple and easy, with low cost, good damping effect reduces noise, and fastener limits inside and outside iron core and moves axially; 2) articulamentum is the injection mo(u)lding of high elastic polyurethane material, and is with low cost, saves material cost; 3) lateral surface of internal layer iron core is offered some outer grooves, and the medial surface of outer iron core is offered some inner groovies, and articulamentum embeds in outer groove and the inner groovy, and groove limits the circumferential movement of inside and outside iron core.

Description of drawings:

Fig. 1 is stereogram of the present utility model;

Fig. 2 is structural representation of the present utility model;

Fig. 3 is A-A phantom among Fig. 2;

Fig. 4 is B-B phantom among Fig. 3.

Embodiment:

Also by reference to the accompanying drawings the utility model is described in further detail below by specific embodiment.

Embodiment one: as shown in Figures 1 to 4, the utility model is a kind of motor rotor construction, comprise internal layer iron core 1 and outer iron core 2, be provided with articulamentum 3 between internal layer iron core 1 and the outer iron core 2, be provided with through hole 31 in the middle of the articulamentum 3, protrude fastener 32 at the two ends of both sides, through hole 31 end, articulamentum 3, fastener 32 is buckled on the end face of internal layer iron core 1 and outer iron core 2 and the bottom surface and with internal layer iron core 1 and outer iron core 2 and connects.

Embodiment two: the basis at embodiment one increases following technical characterictic: articulamentum 3 is highly elastic material injection mo(u)ldings.

Embodiment three: the basis at embodiment one or embodiment two increases following technical characterictic: the lateral surface of internal layer iron core 1 is offered some outer grooves 11, and the medial surface of outer iron core 2 is offered some

inner groovies

21,21 li of the articulamentum 3 outer grooves 11 of embedding and inner groovies.

Embodiment four: the basis at embodiment one increases following technical characterictic: offer the axis hole 12 that rotating shaft is installed in the middle of the internal layer iron core 1.

Embodiment five: the basis at embodiment one increases following technical characterictic: the lateral surface of outer iron core 2 is pasted some permanent magnets 4.

Embodiment six: the basis at embodiment three increases following technical characterictic: some outer grooves 11 are distributed on the lateral surface of internal layer iron core 1, and some inner groovies 21 are distributed on the medial surface of outer iron core 2, and outer groove 11 is radially corresponding with the position of inner groovy 21.

Because the application is mechanical field, the apparent association of ability those of ordinary skill obtains: the technical characterictic independent assortment of the increase that embodiment two, embodiment three, embodiment four, embodiment five and embodiment six mention is combined into new technical scheme with the technical scheme of embodiment one.

The utility model articulamentum 3 is by the polyurethane material injection mo(u)lding, be provided with through hole 31 in the middle of the articulamentum 3, fastener 32 is protruded at two ends at both sides, through hole 31 end, articulamentum 3, fastener 32 is buckled on the end face of internal layer iron core 1 and outer iron core 2 and the bottom surface and with internal layer iron core 1 and outer iron core 2 and connects, optimize existing shock-damping structure, removed end plate and rivet commonly used, only need single injection-molded just can finish, technique is simple, practicality also reduces to prevent shaft current on plastic packaging motor, weaken the bearing galvanic corrosion, through hole 31 has increased the damping absorption, further noise reduction.

Claims

1. motor rotor construction, comprise internal layer iron core (1) and outer iron core (2), be provided with articulamentum (3) between internal layer iron core (1) and the outer iron core (2), it is characterized in that: be provided with through hole (31) in the middle of the articulamentum (3), protrude fastener (32) at the two ends of through hole (31) both sides, end, articulamentum (3), fastener (32) is buckled on the end face of internal layer iron core (1) and outer iron core (2) and the bottom surface and with internal layer iron core (1) and outer iron core (2) and connects.

2. a kind of motor rotor construction according to claim 1, it is characterized in that: articulamentum (3) is the highly elastic material injection mo(u)lding.

3. a kind of motor rotor construction according to claim 1 and 2, it is characterized in that: the lateral surface of internal layer iron core (1) is offered some outer grooves (11), the medial surface of outer iron core (2) is offered some inner groovies (21), and articulamentum (3) embedding outer groove (11) and inner groovy (21) are inner.

4. a kind of motor rotor construction according to claim 1 is characterized in that: offer the axis hole (12) that rotating shaft is installed in the middle of the internal layer iron core (1).

5. a kind of motor rotor construction according to claim 1, it is characterized in that: the lateral surface of outer iron core (2) is pasted some permanent magnets (4).

6. a kind of motor rotor construction according to claim 3, it is characterized in that: some outer grooves (11) are distributed on the lateral surface of internal layer iron core (1), some inner groovies (21) are distributed on the medial surface of outer iron core (2), and outer groove (11) is radially corresponding with the position of inner groovy (21).