CN203632470U

CN203632470U - Motor rotor

Info

Publication number: CN203632470U
Application number: CN201420007369.0U
Authority: CN
Inventors: 徐华杰
Original assignee: NINGBO RUNZE ELECTRIC Co Ltd
Current assignee: NINGBO RUNZE ELECTRIC Co Ltd
Priority date: 2014-01-04
Filing date: 2014-01-04
Publication date: 2014-06-04
Anticipated expiration: 2024-01-04

Abstract

The utility model discloses a motor rotor. The motor rotor comprises a rotor body. The rotor body comprises a rotating shaft, a winding installed on the rotating shaft, and a fan arranged at the other side, opposite to the winding, of the rotating shaft. The fan comprises an impeller and vanes integrated with the impeller. The vanes comprise main vanes and back vanes. The main vanes and the back vanes are arranged at intervals in order, one large by one small. The main vanes and the back vanes are circumferentially distributed along the impeller. In the motor rotor, the fan on the rotating shaft is equipped with two groups of vanes, the main vanes are in charge of most heat around the rotor, and the back vanes can discharge heat at the central part of the rotor, the heat radiation efficiency is raised, and the service life is prolonged.

Description

Rotor

Technical field

The utility model relates to a kind of rotor, and in particular, it relates to a kind of rotor.

Background technology

When brush motor work, coil and commutator rotation, magnet steel and carbon brush do not turn, the alternately variation of the direction of the winding current is to complete with phase changer and the brush of electric machine rotation, in the time of motor load, in motor, there is power loss, this power loss becomes heat energy at last, this can make motor temperature raise, the excess Temperature of motor will cause the reduction of motor working efficiency, rotor in brush motor is on the market mostly with fan, but traditional fan is in the time of heat radiation operation, the wind of flabellum leaves toward surrounding, rotor center part does not emit, make rotor also have heat dissipation problem, therefore still there is improved space in this rotor.

Utility model content

The deficiency existing for prior art, the purpose of this utility model is to provide a kind of rotor of the fan with good heat dissipation effect.

For achieving the above object, the utility model provides following technical scheme: a kind of rotor, comprise rotor body, described rotor body comprises rotating shaft, be arranged on winding in rotating shaft and be arranged on rotating shaft on the fan of relative winding opposite side, the blade that described fan comprises impeller and is wholely set with impeller, described blade comprises primary blades and back blades, and small one and large one arranges described primary blades and back blades at interval successively, and described primary blades and back blades are all circumferential distribution along impeller.

By adopting technique scheme, when motor rotation, rotor rotates, being fixedly mounted on epitrochanterian fan synchronizes with rotor speed, when blade rotation on fan, play the effect of air discharging and radiating, fan is provided with the blade of two groups of different sizes, blade is evenly distributed on impeller, makes two groups of fans all form the wind direction of a specific direction, and primary blades forms the wind direction leaving towards surrounding, back blades can be gone out the dissipation of heat of middle body, two groups of fans that blade arranges, wind-force is more powerful, and radiating effect is more powerful.

The utility model is further set to: the certain angle setting of staggering of described primary blades and back blades.

By adopting technique scheme, two groups of blades installation angle differences that fan arranges, when fan is rotated, both form the wind direction of different directions, make in the time that primary blades discharges heat certain orientation, back blades also can also discharge the rotor center portion undischarged wind of primary blades, and two groups of blades are worked simultaneously, strengthen fan work efficiency, the heat in motor can be emitted faster.

The utility model is further set to: described impeller is round table-like.

By adopting technique scheme, impeller is arranged on rotor, and it is round table-like that impeller is, impeller outer surface is inclined-plane setting, while making heat pass through fan, increases the wind area of fan, simultaneously make to a certain extent wind direction rotate, what make that blade is more prone to emits heat.

The utility model is further set to: the through hole that described impeller is provided with, through hole and rotating shaft interference fit.

By adopting technique scheme, impeller and rotating shaft interference fit, can closely be connected with rotating shaft impeller, while guaranteeing to rotate in rotating shaft moment, impeller also can move thereupon, has also prevented that impeller from splitting away off from rotating shaft simultaneously, guarantees steady operation and the heat radiation of motor.

The utility model is further set to: described winding surface is provided with groove, and described groove is inclined at winding surface.

By adopting technique scheme, the inner coil of installing of winding, the groove direction that punching portion in winding forms and rotating shaft two ends bearing of trend are at an angle, making winding surface be screw thread fills when rotor is rotated, winding surface forms spiral wind, make wind direction form certain orientation and more easily flow from a direction, accelerated the radiating rate of fan.

The utlity model has following advantage: the fan in rotating shaft is provided with two groups of blades, primary blades has been responsible for the most of heat of peritrochanteric, back blades also can emit the heat at rotor center position, and such arranging strengthened radiating efficiency, has extended motor useful life.

Brief description of the drawings

Fig. 1 is the structure chart of the utility model fan;

Fig. 2 is the structure chart of the utility model rotor.

In figure: 1, fan; 11, blade; 12, impeller; 14, through hole; 111, primary blades; 112, back blades; 2, winding; 21, groove; 3, rotating shaft.

Embodiment

Shown in Fig. 2, a kind of rotor of the present embodiment, comprise rotor body (not marking in figure), described rotor body comprises rotating shaft 3, be arranged on winding 2 in rotating shaft 3 and be arranged on rotating shaft 3 on the fan 1 of relative winding 2 opposite sides, the blade 11 that described fan 1 comprises impeller 13 and is wholely set with impeller 13, described blade 11 comprises primary blades 111 and back blades 112, described primary blades 111 and back blades 112 small one and large one interval settings successively, described primary blades 111 and back blades 112 are all circumferential distribution along impeller 13.

By adopting technique scheme, when motor rotation, rotor rotates, being fixedly mounted on epitrochanterian fan 1 synchronizes with rotor speed, when blade 11 on fan 1 rotates, play the effect of air discharging and radiating, fan 1 is provided with the blade 11 of two groups of different sizes, blade 11 is evenly distributed on impeller 13, makes two groups of fans 1 all form the wind direction of a specific direction, and primary blades 111 forms the wind direction leaving towards surrounding, back blades 112 can be gone out the dissipation of heat of middle body, two groups of fans 1 that blade 11 arranges, wind-force is more powerful, and radiating effect is more powerful.

The certain angle setting of staggering of described primary blades 111 and back blades 112.

Two groups of blades, the 11 setting angle differences that fan 1 arranges, when fan 1 is rotated, both form the wind direction of different directions, make in the time that primary blades 111 discharges heat certain orientation, back blades 112 also can also discharge rotor center portion primary blades 111 undischarged wind, two groups of blades 11 are worked simultaneously, have strengthened fan 1 operating efficiency, and the heat in motor can be emitted faster.

Described impeller 13 is round table-like.

Impeller 13 is arranged on rotor, and impeller 13 is round table-like, and impeller 13 outer surfaces are inclined-plane setting, while making heat pass through fan 1, increase the wind area of fan 1, make to a certain extent wind direction rotate, what make that blade 11 is more prone to emits heat simultaneously.

The through hole 14 that described impeller 13 is provided with, through hole 14 and rotating shaft 3 interference fit.

Impeller 13 and rotating shaft 3 interference fit, can closely be connected with rotating shaft 3 impeller 13, and while guaranteeing to rotate in 3 moments of rotating shaft, impeller 13 also can move thereupon, has also prevented that impeller 13 from splitting away off from rotating shaft 3 simultaneously, guarantees steady operation and the heat radiation of motor.

Described winding 2 surfaces are provided with groove 21, and described groove 21 is inclined at winding 2 surfaces.

The inner coil of installing of winding 2, the groove direction that punching portion in winding 2 forms and rotating shaft 3 two ends bearing of trends are at an angle, making winding 2 surfaces be screw thread fills when rotor is rotated, winding 2 surfaces form spiral wind, make wind direction form certain orientation and more easily flow from a direction, accelerated the radiating rate of fan 1.

The utlity model has following advantage: the fan 1 in rotating shaft 3 is provided with two groups of blades 11, primary blades 111 has been responsible for the most of heat of peritrochanteric, back blades 112 also can emit the heat at rotor center position, and such arranging strengthened radiating efficiency, has extended motor useful life.

The above is only preferred implementation of the present utility model, and protection range of the present utility model is also not only confined to above-described embodiment, and all technical schemes belonging under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, in the some improvements and modifications that do not depart under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.

Claims

1. a rotor, comprise rotor body, described rotor body comprises rotating shaft, be arranged on winding in rotating shaft and be arranged on rotating shaft on the fan of relative winding opposite side, it is characterized in that: the blade that described fan comprises impeller and is wholely set with impeller, described blade comprises primary blades and back blades, small one and large one arranges described primary blades and back blades at interval successively, and described primary blades and back blades are all circumferential distribution along impeller.

2. a kind of machine shaft according to claim 1, is characterized in that: the certain angle setting of staggering of the above primary blades of described fan and back blades.

3. a kind of machine shaft according to claim 2, is characterized in that: described impeller is round table-like.

4. a kind of machine shaft according to claim 3, is characterized in that: described impeller is provided with through hole, through hole and rotating shaft interference fit.

5. a kind of machine shaft according to claim 1, is characterized in that: described winding surface is provided with groove, and described groove is inclined at winding surface.