CN203193448U - Brushless motor with air cooling system - Google Patents

Brushless motor with air cooling system Download PDF

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Publication number
CN203193448U
CN203193448U CN 201320219503 CN201320219503U CN203193448U CN 203193448 U CN203193448 U CN 203193448U CN 201320219503 CN201320219503 CN 201320219503 CN 201320219503 U CN201320219503 U CN 201320219503U CN 203193448 U CN203193448 U CN 203193448U
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CN
China
Prior art keywords
cooling system
electric machine
air cooling
brushless electric
motor
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CN 201320219503
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Chinese (zh)
Inventor
赵建平
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SUZHOU AOBAOJIE MOTOR TECHNOLOGY Co Ltd
Original Assignee
SUZHOU AOBAOJIE MOTOR TECHNOLOGY Co Ltd
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Priority to CN 201320219503 priority Critical patent/CN203193448U/en
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Abstract

The utility model provides a brushless motor with an air cooling system. The motor comprises a motor body and a motor housing covered on the outer side of the motor body. The motor body comprises a motor shaft, a motor rotor connected to the motor shaft, and a motor stator arranged at the motor housing and cooperating with the motor rotor. The brushless motor also comprises an air cooling system comprising a heat dissipation fan and a windshield arranged on one side of the heat dissipation fan. With the brushless motor, effects of simple structure and high cooling efficiency can be realized.

Description

Brushless electric machine with air cooling system
Technical field
The utility model relates to motor, relates in particular to brushless electric machine.
Background technology
Brushless electric machine is a kind of as synchronous machine, can be widely used in fields such as medicine equipment, household electrical appliance, the vehicles, industrial industry control, automation and Aero-Space.The rotating speed of brushless electric motor rotor is subjected to the speed of motor stator rotating magnetic field and the influence of rotor number of poles.Existing brushless electric machine generally comprises motor main body and driver.When motor load moves, power loss is arranged in the motor, these power losss finally all will become heat energy, and this will make motor temperature raise.The overheated reduction that will cause motor working efficiency of motor.
The Chinese invention patent application discloses CN101373907A number and discloses a kind of brushless electric machine, and this brushless electric machine is reached the purpose of lowering the temperature for motor by the configuration cooling fan.Yet clearly, this structure that fan is installed on motor shaft makes the compactedness variation of motor, and simultaneously, the air that is blown into motor internal can't obtain effectively utilizing and make that then cooling efficient is not high.China's utility model is announced 202260947U number another kind of settling mode for the motor cooling then is provided.The purpose of this kind brushless electric machine by stator being exposed realize to dispel the heat.Yet this stator that exposes makes that the overall structure of motor is loose, and is subjected to unnecessary touching easily and causes motor to lose efficacy.
Therefore, be necessary to provide a kind of improved brushless electric machine to overcome the problems referred to above.
The utility model content
The purpose of this utility model is to provide a kind of simple in structure, high brushless electric machine of cooling efficient.
For realizing above-mentioned utility model purpose, the utility model provides a kind of brushless electric machine with air cooling system, comprise that motor body and shade are in the motor case in the described motor body outside, the motor stator that described motor body comprises motor shaft, is connected in the rotor of described motor shaft and is arranged at described motor case and cooperates with described rotor, described brushless electric machine also comprises air cooling system, and described air cooling system comprises radiator fan and the deep bead that is arranged on radiator fan one side.
As further improvement of the utility model, described rotor has rotor front end-plate and rotor end plate, and described radiator fan is arranged between described rotor front end-plate and the described deep bead.
As further improvement of the utility model, described radiator fan and described rotor front end-plate are one-body molded.
As further improvement of the utility model, described motor body also comprises bearing, is used for described motor shaft is fixed in described motor case.
As further improvement of the utility model, described motor case has front end housing and rear end cap, offers air inlet on the described front end housing, offers the gas outlet on the described rear end cap.
As further improvement of the utility model, on the described deep bead, close on described motor shaft place and offer ventilation hole, air-flow sucks motor body inside from described air inlet by the negative pressure that the radiator fan rotation produces, and flows out described brushless electric machine via the ventilation hole on the deep bead and by the guiding of radiator fan from described gas outlet.
As further improvement of the utility model, described rotor has rotor front end-plate and rotor end plate, and described radiator fan is arranged between described rotor end plate and the described deep bead.
As further improvement of the utility model, described radiator fan has radially fan blade.
As further improvement of the utility model, the height of described deep bead is identical with the radial height of described motor case inside.
As further improvement of the utility model, described air cooling system comprises air inlet and the gas outlet that is arranged on the described motor case, and described deep bead arranges in the motor case, described air inlet one side.
The beneficial effects of the utility model are that described brushless electric machine adopts the air cooling system with deep bead structure, make that the air-flow that enters motor body is more concentrated, avoid air-flow in described motor body, to flee to influence cooling-down effect, thereby promoted the operating efficiency of this brushless electric machine and simple in structure.
Description of drawings
Fig. 1 is the cross-sectional schematic of the utility model first embodiment.
Fig. 2 is the cross-sectional schematic of the utility model second embodiment.
Fig. 3 is the structural representation of the utility model radiator fan.
Fig. 4 is the structural representation of the utility model deep bead.
Embodiment
Below with reference to each execution mode shown in the drawings the utility model is described in detail.But these execution modes do not limit the utility model, and the conversion on the structure that those of ordinary skill in the art makes according to these execution modes, method or the function all is included in the protection range of the present utility model.
Figure 1 shows that the generalized section of first embodiment of the brushless electric machine 100 that the utlity model has air cooling system.Described brushless electric machine 100 comprises that motor body 10 and shade are in the motor case 20 in described motor body 10 outsides.In the described motor body 10 motor shaft 11 is installed, is connected in the rotor 12 of described motor shaft 11 and is arranged on described motor case 20 and with the motor stator 13 of described rotor 12 cooperatings.Described motor body 10 also comprises the bearing 14 that described motor shaft 11 is connected with described motor case 20.Be appreciated that ground, brushless electric machine 100 of the present utility model also comprises other general structures that those of ordinary skills understand, and as driver, transducer, controller etc., does not repeat them here.
Described motor case 20 comprises front end housing 21, rear end cap 22, and described rear end cap 22 is arranged in axial direction with described front end housing 21.Offer some air inlets or air admission hole 210 on the described front end housing 21.Offer some gas outlets or venthole 220 on the described rear end cap 22.The described motor case 20 inner spatial accommodations 23 that form are used for holding described motor body 10.
The motor shaft 11 of described motor body 10 is arranged on the front end housing 21 and rear end cap 22 of described motor case 20 along fore-and-aft direction, and fixes by described bearing 14 and described front end housing 21, rear end cap 22.Have some windings 15 on the described motor stator 13.Motor stator 13 inboards are the rotor 12 that cooperates with it.Described rotor 12 has rotor front end-plate 120 and rotor end plate 121, and described rotor front end-plate 120 is arranged in axial direction with described rotor end plate 121.
In the utility model, described brushless electric machine 100 comprises that also air cooling system 30 is used to described brushless electric machine cooling.Described air cooling system 30 comprises radiator fan 31 and deep bead 32.Described radiator fan 31 is arranged between described rotor 12 and the described deep bead 32.In first embodiment shown in Figure 1, described radiator fan 31 is one-body molded with the rotor front end-plate 120 of described rotor 12.Described deep bead 32 is arranged between the front end housing 21 of described radiator fan 31 and described motor case 20.See also Fig. 3 and Fig. 4, described deep bead 32 has the circulation that a hollow hole 320 is used for air.Described deep bead 32 is circular, adapts in order to the shape with the spatial accommodation 23 of described motor case 20.In other words, in preferred embodiments, the height of described deep bead 32 or diameter are identical with depth of section or the radial height of the described spatial accommodation 23 of described motor case inside.This structure can guarantee that circulation of air only carries out from described hollow hole 320, thereby avoids the convection current of air.In the utility model, the fan blade of described radiator fan 31 is fan blade radially.After brushless electric machine 100 starts, because the negative pressure that radiator fan 31 rotations produce, make outside air suck described spatial accommodation 23 from the air inlet 210 of front end housing 21, because blocking of described deep bead 32, make air-flow only can enter described radiator fan 31 from described hollow hole 320, and the guide effect by fan blade radially radially to around blow away.Then, described air-flow passes that described motor stator 13 makes after its cooling the rear by described spatial accommodation 23 again, the exhaust outlet 220 that passes described rear end cap 22 blows out motor case 20 outsides, reaches then to be brushless electric machine 100 cool effect.The process of circulation of its air-flow is shown in Fig. 1 upward arrow.Be appreciated that ground, in other possible execution modes, described radiator fan 31 can be a pair of, and namely one is installed in described deep bead 32 1 sides, one is installed between described rotor end plate 121 and the described rear end cap 22, is used for assisting air-flow is blown out the described brushless electric machine outside.
Figure 2 shows that the generalized section of second embodiment of the brushless electric machine 100 ' that the utlity model has air cooling system.In this second embodiment, the basic structure of described brushless electric machine 100 ' is identical with the basic structure of the first embodiment brushless electric machine 100.In this, do not give unnecessary details same structure, only describe with regard to discrepant part-structure.Brushless electric machine 100 ' among second embodiment, the described radiator fan 31 ' of its air cooling system 30 ' is to be built up in described deep bead 32 ' one side separately, that is, described radiator fan 31 ' is arranged between described rotor end plate 120 ' and the described deep bead 32 ', and closes on described deep bead 32 ' one side setting.The circulating direction of its air-flow is also with noted earlier consistent.
In sum, compare with prior art, the utility model brushless electric machine 100,100 ' beneficial effect are: described air cooling system 30 adopts the deep bead structures to make that the air-flow that enters motor body is more concentrated, avoids air-flow to flee to influence cooling-down effect in described motor body.
Be to be understood that, though this specification is described according to execution mode, but be not that each execution mode only comprises an independently technical scheme, this narrating mode of specification only is for clarity sake, those skilled in the art should make specification as a whole, technical scheme in each execution mode also can form other execution modes that it will be appreciated by those skilled in the art that through appropriate combination.
Above listed a series of detailed description only is specifying at feasibility execution mode of the present utility model; they are not in order to limiting protection range of the present utility model, allly do not break away from equivalent execution mode or the change that the utility model skill spirit does and all should be included within the protection range of the present utility model.

Claims (10)

1. brushless electric machine with air cooling system, comprise that motor body and shade are in the motor case in the described motor body outside, the motor stator that described motor body comprises motor shaft, is connected in the rotor of described motor shaft and is arranged at described motor case and cooperates with described rotor, it is characterized in that: described brushless electric machine also comprises air cooling system, and described air cooling system comprises radiator fan and the deep bead that is arranged on radiator fan one side.
2. the brushless electric machine with air cooling system as claimed in claim 1, it is characterized in that: described rotor has rotor front end-plate and rotor end plate, and described radiator fan is arranged between described rotor front end-plate and the described deep bead.
3. the brushless electric machine with air cooling system as claimed in claim 2, it is characterized in that: described radiator fan and described rotor front end-plate are one-body molded.
4. the brushless electric machine with air cooling system as claimed in claim 3, it is characterized in that: described motor body also comprises bearing, is used for described motor shaft is fixed in described motor case.
5. the brushless electric machine with air cooling system as claimed in claim 1, it is characterized in that: described motor case has front end housing and rear end cap, offers air inlet on the described front end housing, offers the gas outlet on the described rear end cap.
6. the brushless electric machine with air cooling system as claimed in claim 5, it is characterized in that: on the described deep bead, close on described motor shaft place and offer ventilation hole, air-flow sucks motor body inside from described air inlet by the negative pressure that the radiator fan rotation produces, and flows out described brushless electric machine via the ventilation hole on the deep bead and by the guiding of radiator fan from described gas outlet.
7. the brushless electric machine with air cooling system as claimed in claim 1, it is characterized in that: described rotor has rotor front end-plate and rotor end plate, and described radiator fan is arranged between described rotor end plate and the described deep bead.
8. the brushless electric machine with air cooling system as claimed in claim 1, it is characterized in that: described radiator fan has radially fan blade.
9. the brushless electric machine with air cooling system as claimed in claim 1, it is characterized in that: the height of described deep bead is identical with the radial height of described motor case inside.
10. the brushless electric machine with air cooling system as claimed in claim 1, it is characterized in that: described air cooling system comprises air inlet and the gas outlet that is arranged on the described motor case, described deep bead arranges in the motor case, described air inlet one side.
CN 201320219503 2013-04-26 2013-04-26 Brushless motor with air cooling system Active CN203193448U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320219503 CN203193448U (en) 2013-04-26 2013-04-26 Brushless motor with air cooling system

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Application Number Priority Date Filing Date Title
CN 201320219503 CN203193448U (en) 2013-04-26 2013-04-26 Brushless motor with air cooling system

Publications (1)

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CN203193448U true CN203193448U (en) 2013-09-11

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104124850A (en) * 2013-04-26 2014-10-29 苏州奥宝杰电机科技有限公司 Brushless motor with air cooling system
CN105896857A (en) * 2016-05-31 2016-08-24 德州杰诺新能源有限公司 Super-efficient alternating current asynchronous motor structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104124850A (en) * 2013-04-26 2014-10-29 苏州奥宝杰电机科技有限公司 Brushless motor with air cooling system
CN105896857A (en) * 2016-05-31 2016-08-24 德州杰诺新能源有限公司 Super-efficient alternating current asynchronous motor structure

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C14 Grant of patent or utility model
GR01 Patent grant
CB03 Change of inventor or designer information

Inventor after: Zhao Jiangang

Inventor before: Zhao Jianping

CB03 Change of inventor or designer information
COR Change of bibliographic data

Free format text: CORRECT: INVENTOR; FROM: ZHAO JIANPING TO: ZHAO JIANGANG