CN201576995U

CN201576995U - Motor cast-aluminum rotor

Info

Publication number: CN201576995U
Application number: CN2009202639550U
Authority: CN
Inventors: 杨风波
Original assignee: Zhongshan Broad Ocean Motor Co Ltd
Current assignee: Zhongshan Broad Ocean Motor Co Ltd
Priority date: 2009-11-28
Filing date: 2009-11-28
Publication date: 2010-09-08
Anticipated expiration: 2019-11-28

Abstract

The utility model discloses a motor cast-aluminum rotor comprising a rotor iron core (1), an aluminum strip (2) which is embedded into the rotor iron core (2) and a short-circuit ring (3) which is located on the end surface of the rotor iron core (1). The short-circuit ring (3) is connected with the aluminum strip (2); a plurality of fan blades (4) are evenly arranged on the end surface of the short-circuit ring (3) at one side of the rotor iron core (1). The motor cast-aluminum rotor with simple structure, low cost and good radiating effect meets design requirements on cooling and radiating of the motor, and is widely applied to middle/small motors with small internal space and compact structure.

Description

A kind of apparatus for cast-aluminium rotor of electric machine

Technical field:

The utility model relates to motor rotor construction, and it is less to relate in particular to a kind of inner space that is applied in, the cast-aluminum rotor in the motor of compact conformation.

Background technology:

Existing apparatus for cast-aluminium rotor of electric machine, as shown in Figure 1, often be symmetrically arranged with some fan blades 4 on its rotor core 1 both sides end face, a large amount of heats of motor inside are walked in this design by fan blade 4 rotating bands, thereby solved the heat dissipation problem of motor internal, but, less for most inner spaces, the middle and small motor of compact conformation, adopt this structure can bring following problem: 1) on the end face of cast-aluminum rotor both sides fan blade 4 to be set, make the cast-aluminum rotor axial length longer, volume is bigger, because of the restriction of motor internal bulk, the internal structure compactness, the axial dimension of the fan blade 4 at cast-aluminum rotor two ends must be designed to as far as possible very for a short time, can reduce the heat-sinking capability of fan blade 4 so greatly, radiating effect is not good; 2) some motor manufacturer meets the heat dissipation design requirement in order to guarantee fan blade 4, often make the axial dimension of fan blade 4 bigger as far as possible, restriction because of the motor internal axial dimension, need to be designed to the axial width of rotor core thinner, this will make electric efficiency reduce, temperature raises, the machine operation degradation.

Summary of the invention:

The purpose of this utility model provides a kind of simple in structure, and cost is lower, excellent in heat dissipation effect, and it is less to be widely used in the inner space, the apparatus for cast-aluminium rotor of electric machine in the middle and small motor of compact conformation.

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

A kind of apparatus for cast-aluminium rotor of electric machine, comprise rotor core, be embedded into the aluminum strip of rotor core the inside and be positioned at short-circuited conducting sleeve on the rotor core end face, short-circuited conducting sleeve and aluminum strip couple together, and only wherein on one side the short-circuited conducting sleeve end face the some fan blades that are evenly distributed on its end face are set at rotor core.

The shape of cross section of above-mentioned described fan blade can be a linear pattern, also can be S type or T type.

Above-mentioned described aluminum strip, short-circuited conducting sleeve and fan blade are one-body molded.

The utlity model has following advantage: 1) only one side short-circuited conducting sleeve end face of cast-aluminum rotor iron core is provided with uniform fan blade, guaranteed that the rotor core axial width is thicker, make the axial dimension of fan blade become big, strengthened the heat-sinking capability of fan blade greatly, its excellent in heat dissipation effect has satisfied the cooling designing requirement of motor; 2) the rotor core axial width is thicker, has improved electric efficiency, has reduced temperature, has optimized the machine operation performance; 3) simple in structure, cost is lower, good heat dissipation effect, and it is less to be suitable for being widely used in the inner space, in the middle and small motor of compact conformation; 4) shape of cross section of fan blade can be designed to have the S type or the T type of arcuation face, can strengthen the windward side, better heat-radiation effect.

Description of drawings:

Fig. 1 is the application schematic diagram of prior motor cast-aluminum rotor.

Fig. 2 is the application schematic diagram of the utility model apparatus for cast-aluminium rotor of electric machine.

Fig. 3 is first kind of structural representation of apparatus for cast-aluminium rotor of electric machine in the utility model.

Fig. 4 is the partial sectional view of Fig. 3.

Fig. 5 is second kind of structural representation of apparatus for cast-aluminium rotor of electric machine in the utility model.

Fig. 6 is the partial sectional view of Fig. 5.

Fig. 7 is the third structural representation of apparatus for cast-aluminium rotor of electric machine in the utility model.

Fig. 8 is the partial sectional view of Fig. 7.

Embodiment:

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

Extremely shown in Figure 8 as Fig. 2, a kind of apparatus for cast-aluminium rotor of electric machine, comprise rotor core 1, be embedded into the aluminum strip 2 of rotor core 1 the inside and be positioned at short-circuited conducting sleeve 3 on rotor core 1 end face, short-circuited conducting sleeve 3 couples together with aluminum strip 2, only wherein on one side short-circuited conducting sleeve 3 end faces some fan blades 4 that are evenly distributed on its end face is set at rotor core 1.

Wherein the shape of cross section of fan blade 4 can be a linear pattern, also can be S type or the T type with arcuation face; Aluminum strip 2, short-circuited conducting sleeve 3 and fan blade 4 are one-body molded.

The utility model cast-aluminum rotor is simple in structure, cost is lower, some fan blades only concentrate on the wherein end face of rotor core, guaranteed that the rotor core axial width is thicker, made the axial dimension of fan blade become big, strengthened the heat-sinking capability of fan blade greatly, its excellent in heat dissipation effect, satisfied the cooling designing requirement of motor, it is less to be suitable for being widely used in the inner space, in the middle and small motor of compact conformation; The rotor core axial width is thicker, has improved electric efficiency, has reduced temperature, has optimized the machine operation performance.

Claims

1. apparatus for cast-aluminium rotor of electric machine, comprise rotor core (1), be embedded into the aluminum strip (2) of rotor core (1) the inside and be positioned at short-circuited conducting sleeve (3) on rotor core (1) end face, short-circuited conducting sleeve (3) and aluminum strip (2) couple together, and it is characterized in that: only wherein on one side short-circuited conducting sleeve (3) end face the some fan blades (4) that are evenly distributed on its end face are set at rotor core (1).

2. a kind of apparatus for cast-aluminium rotor of electric machine according to claim 1 is characterized in that: the shape of cross section of fan blade (4) can be a linear pattern, also can be S type or T type.

3. a kind of apparatus for cast-aluminium rotor of electric machine according to claim 1 and 2 is characterized in that: aluminum strip (2), short-circuited conducting sleeve (3) and fan blade (4) are one-body molded.