CN202042990U - Brushless motor with outer rotor for range hood - Google Patents
Brushless motor with outer rotor for range hood Download PDFInfo
- Publication number
- CN202042990U CN202042990U CN2011200638601U CN201120063860U CN202042990U CN 202042990 U CN202042990 U CN 202042990U CN 2011200638601 U CN2011200638601 U CN 2011200638601U CN 201120063860 U CN201120063860 U CN 201120063860U CN 202042990 U CN202042990 U CN 202042990U
- Authority
- CN
- China
- Prior art keywords
- outer rotor
- electric machine
- brushless motor
- smoke exhaust
- exhaust ventilator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a brushless motor with an outer rotor for a range hood, which is arranged on an installation board of the range hood and connected with a wind wheel installed in a fixed rack. The brushless motor with the outer rotor for the range hood comprises a brushless motor body and brushless motor driving unit which are connected with each other through a conductor, wherein the brushless motor body comprises the outer rotor and a stator assembly. The outer rotor is in a shape of a cup, a permanent magnet is fixed on the inner surface of the outer rotor, and a rotating shaft is fixed at the rotating central position of the outer rotor. The stator assembly comprises an armature, a base and a bearing. The rotating shaft penetrates through a bearing hole of the bearing, and the outer rotor is fixed on the stator assembly through the bearing. When the motor is powered up, a rotating magnetic field is generated between the stator assembly and the outer rotor, and a wind wheel is driven to rotate through the rotating shaft. The brushless motor with the outer rotor for the range hood has high efficiency and wide speed regulation range.
Description
Technical field
The utility model relates to household appliance technical field, specially refers to a kind of smoke exhaust ventilator outer rotor brushless motor.
Background technology
Various smoke exhaust ventilators in the market, motor has often adopted brush direct current machine or induction machine, there is the brush direct current machine to change sense of current by brush and commutator, when motor rotated, brush and commutator constantly rubbed, and can produce spark, electromagnetic interference is arranged, noise is big, and carbon dust also can cause electric machine assembly to damage, and also can influence the useful life of motor.Adopt induction machine, motor power factor is low, and efficient is low, and performance is low.
The utility model content
Main purpose of the present utility model is for providing a kind of smoke exhaust ventilator outer rotor brushless motor, efficient height, long service life.
The utility model provides a kind of smoke exhaust ventilator outer rotor brushless motor, be arranged on the mounting panel of smoke exhaust ventilator, and be connected with the wind wheel that is installed in fixed mount inside, described smoke exhaust ventilator comprises by interconnective brushless electric machine body of conductor and brushless electric machine driver element with outer rotor brushless motor, wherein, described brushless electric machine body comprises external rotor and stator module;
Described external rotor is a cup-shaped, and the inner surface of external rotor is fixed with permanent magnet, and the pivot place of external rotor is fixed with rotating shaft;
Described stator module comprises armature, base and bearing;
The dead eye of described bearing is passed in described rotating shaft, and by bearing described external rotor is fixed on the described stator module, during electrical power, produces rotating magnetic field between stator module and external rotor, drives wind wheel by described rotating shaft and rotates.
Preferably, described brushless electric machine driver element possesses the PWM speed-regulating function, and the brushless electric machine driver element comprises: power supply input rectifying module, power model and the control module of Lian Jieing successively, described power model is connected with described brushless electric machine body.
Preferably, be respectively arranged with electric main input port, motor power port and control input/output port on described power supply input rectifying module, power model and the control module that connects successively.
Preferably, described brushless electric machine driver element is sine wave or square wave drive, is used to drive the brushless electric machine that no transducer connects.
Preferably, described brushless electric machine body also comprises angular transducer, is arranged on the described stator module.
Preferably, be connected with the brushless electric machine driver element of sine wave or square wave drive on the described angular transducer, angular transducer links to each other with control module in the brushless electric machine driver element.
Preferably, described permanent magnet is by multi-disc magnet steel assembled annular permanent-magnet body or multi-stage annular permanent magnet.
Preferably, described rotating shaft is fixed on the wind wheel, and the output of rotating shaft is provided with screw thread, and is fastening with nut with described wind wheel.
Preferably, an end of described bearing is provided with the porose back-up ring of using.A kind of smoke exhaust ventilator outer rotor brushless motor that the utility model provides does not have brush and commutator, can reduce the motor wearing and tearing, makes that the motor operation is smooth and easy, and noise is low; And utilize brushless electric machine drive unit drives motor body, make the electric machine speed regulation wide ranges, the steady-state speed error is little, motor power factor height, efficient height, long service life.
Description of drawings
Fig. 1 is the structural representation among the utility model smoke exhaust ventilator usefulness outer rotor brushless motor one embodiment;
Fig. 2 is the utility model smoke exhaust ventilator brushless electric machine driver element schematic diagram among outer rotor brushless motor one embodiment;
Fig. 3 is the utility model smoke exhaust ventilator another brushless electric machine driver element schematic diagram among outer rotor brushless motor one embodiment.
The realization of the utility model purpose, functional characteristics and advantage will be in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
With reference to Fig. 1, the embodiment of a kind of smoke exhaust ventilator of the utility model with outer rotor brushless motor proposed, be arranged on the mounting panel of smoke exhaust ventilator, and be connected with the wind wheel 1 that is installed in fixed mount inside, smoke exhaust ventilator comprises that with outer rotor brushless motor brushless electric machine body 100 comprises external rotor 2 and stator module 3 by interconnective brushless electric machine body 100 of conductor and brushless electric machine driver element 200;
External rotor 2 is a cup-shaped, and its cup inner chamber is cylindrical, and the inner surface of external rotor 2 is fixed with permanent magnet 4, and the pivot place of external rotor 2 is fixed with rotating shaft 5;
Brushless electric machine body 100 and brushless electric machine driver element 200 are connected by conductor, brushless electric machine driver element 200 be used to drive brushless electric machine body 100 carry out rotate, stop, speed governing moves.
Permanent magnet 4 is by the assembled annular permanent-magnet body of multi-disc magnet steel or is the multi-stage annular permanent magnet.
Rotating shaft 5 is fixed on the wind wheel 1, in rotating shaft 5 and the place that external rotor 2 links to each other, is provided with copper sheathing 6, and the output of rotating shaft 5 is provided with screw thread, and is fastening with wind wheel 1 usefulness locking nut 7.
One end of bearing 33 is provided with the porose back-up ring 8 of using, and this hole is used for limiting the axial displacement of the rotating shaft 5 of the dead eye that passes bearing 33 with back-up ring 8.
With reference to Fig. 2, among the utility model one embodiment, brushless electric machine driver element 200 comprises: power supply input rectifying module S1, power model S2 and the control module S3 of Lian Jieing successively, wherein, power model S2 and brushless electric machine body 100 are connected by conductor.Brushless electric machine driver element 200 possesses the PWM speed-regulating function.
Drive the rectification filtering power of input 220VAC, by power supply input rectifying module S1 alternating voltage is transformed into direct voltage and comes drive motors, control module S3 detects back-emf, realizes electronic commutation; After motor rotates, but control module S3 computing rotating speed, and regulate and control rotating speed of motor by pulse width modulation module (PWM).
Be respectively arranged with electric main input port S10, motor power port S20 and control input/output port S30 on power supply input rectifying module S1, power model S2 and the control module S3.
Brushless electric machine driver element 200 is sine wave or square wave drive, is used to drive the brushless electric machine that no transducer connects.
The smoke exhaust ventilator outer rotor brushless motor that the utility model provides is fixed on permanent magnet the inner surface of external rotor.Owing to do not have brush and commutator in the motor, can reduce the motor wearing and tearing, make that the motor operation is smooth and easy, noise is low, long service life; And owing to utilize brushless electric machine drive unit drives motor body, realize electronic commutation, reached and make the electric machine speed regulation wide ranges that the steady-state speed error is little, motor power factor height, the effect that efficient is high.
With reference to Fig. 3, in the above-described embodiments, brushless electric machine body 100 also can comprise angular transducer 9, and this angular transducer 9 can be the Hall angular transducer, angular transducer 9 is arranged on the stator module 3, the anglec of rotation when being used for detecting external rotor 2 and permanent magnet 4 rotations.
Be connected with the brushless electric machine driver element 200 of sine wave or square wave drive on the angular transducer 9, angular transducer 9 links to each other with control module S3 in the brushless electric machine driver element 200.
Drive the rectification filtering power of input 220VAC, by power supply input rectifying module S1 alternating voltage is transformed into direct voltage and comes drive motors, the position at the motor outer rotor 2 present places that angular transducer 9 is sensed, by power transistor among the control module S3 power controlling module S2, make electric current each phase coil of motor of flowing through in regular turn, and interact with external rotor 2 and to produce rotating magnetic fields, so just can make the motor rotation.When motor outer rotor 2 turns to the position of another group signal that angular transducer 9 induces, by control module S3, open the power transistor among next group power model S2 again, so circulation motor just can be rotated further according to same direction and then close power transistor when control module S3 decision wants motor outer rotor 2 to stop.Can regulate and control rotating speed of motor by pulse width modulation module (PWM).
Owing to utilize the brushless electric machine driver element to be connected with the brushless electric machine body, realize electronic commutation, also can adopt angular transducer to detect motor rotation of inner rotor angle more accurately, reached and made the electric machine speed regulation wide ranges, the steady-state speed error is little, motor power factor height, the effect that efficient is high.
The above only is a preferred embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present utility model.
Claims (8)
1. smoke exhaust ventilator outer rotor brushless motor, be arranged on the mounting panel of smoke exhaust ventilator, and be connected with the wind wheel that is installed in fixed mount inside, it is characterized in that, described smoke exhaust ventilator comprises by interconnective brushless electric machine body of conductor and brushless electric machine driver element with outer rotor brushless motor, wherein, described brushless electric machine body comprises external rotor and stator module;
Described external rotor is a cup-shaped, and the inner surface of external rotor is fixed with permanent magnet, and the pivot place of external rotor is fixed with rotating shaft;
Described stator module comprises armature, base and bearing;
The dead eye of described bearing is passed in described rotating shaft, and by bearing described external rotor is fixed on the described stator module.
2. smoke exhaust ventilator outer rotor brushless motor as claimed in claim 1, it is characterized in that, described brushless electric machine driver element possesses the PWM speed-regulating function, the brushless electric machine driver element comprises: power supply input rectifying module, power model and the control module of Lian Jieing successively, described power model is connected with described brushless electric machine body.
3. smoke exhaust ventilator outer rotor brushless motor as claimed in claim 2, it is characterized in that, be respectively arranged with electric main input port, motor power port and control input/output port on described power supply input rectifying module, power model and the control module that connects successively.
4. smoke exhaust ventilator outer rotor brushless motor as claimed in claim 1 is characterized in that, described brushless electric machine body also comprises angular transducer, is arranged on the described stator module.
5. smoke exhaust ventilator outer rotor brushless motor as claimed in claim 5 is characterized in that, is connected with the brushless electric machine driver element of sine wave or square wave drive on the described angular transducer, and angular transducer links to each other with control module in the brushless electric machine driver element.
6. smoke exhaust ventilator outer rotor brushless motor as claimed in claim 1 or 2 is characterized in that, described permanent magnet is by multi-disc magnet steel assembled annular permanent-magnet body or multi-stage annular permanent magnet.
7. smoke exhaust ventilator outer rotor brushless motor as claimed in claim 1 or 2 is characterized in that described rotating shaft is fixed on the wind wheel, and the output of rotating shaft is provided with screw thread, and is fastening with nut with described wind wheel.
8. smoke exhaust ventilator outer rotor brushless motor as claimed in claim 1 or 2 is characterized in that, an end of described bearing is provided with the porose back-up ring of using.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200638601U CN202042990U (en) | 2011-03-11 | 2011-03-11 | Brushless motor with outer rotor for range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200638601U CN202042990U (en) | 2011-03-11 | 2011-03-11 | Brushless motor with outer rotor for range hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202042990U true CN202042990U (en) | 2011-11-16 |
Family
ID=44970415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200638601U Expired - Lifetime CN202042990U (en) | 2011-03-11 | 2011-03-11 | Brushless motor with outer rotor for range hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202042990U (en) |
-
2011
- 2011-03-11 CN CN2011200638601U patent/CN202042990U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN AEROSPACE MICRO-ELECTRIC MACHINE CO., LTD Free format text: FORMER OWNER: SHENZHEN HANGTIAN KEGONG MOTOR CO., LTD. Effective date: 20120203 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 518000 SHENZHEN, GUANGDONG PROVINCE TO: 518057 SHENZHEN, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120203 Address after: 518057 research building of space micro motor factory building, Fifth Industrial Zone, North Ring Road, Shenzhen, Guangdong, Nanshan District Patentee after: Shenzhen Aerospace Micro-Electric Machine Co., Ltd. Address before: 518000, Baoan District, Guangdong, Gongming Province, Shenzhen new stone Wai fourth industrial zone Patentee before: Shenzhen Casic Motor Co., Ltd. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151218 Address after: 518000 Guangdong, Guangming District, Gongming, Shenzhen street, South Ring Road, A District, No. 51, building 1 Patentee after: SHENZHEN AEROSPACE MOTOR SYSTEM CO., LTD. Address before: 518057 research building of space micro motor factory building, Fifth Industrial Zone, North Ring Road, Shenzhen, Guangdong, Nanshan District Patentee before: Shenzhen Aerospace Micro-Electric Machine Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111116 |