CN201234180Y - Outer rotor brushless DC motor - Google Patents
Outer rotor brushless DC motor Download PDFInfo
- Publication number
- CN201234180Y CN201234180Y CNU200820099438XU CN200820099438U CN201234180Y CN 201234180 Y CN201234180 Y CN 201234180Y CN U200820099438X U CNU200820099438X U CN U200820099438XU CN 200820099438 U CN200820099438 U CN 200820099438U CN 201234180 Y CN201234180 Y CN 201234180Y
- Authority
- CN
- China
- Prior art keywords
- motor
- brushless
- outer rotor
- protective cover
- end cap
- 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 - Fee Related
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Abstract
The utility model relates to an outer motor brushless DC motor, which comprises an outer rotor DC brushless motor assembly, a motor rotating shaft and a motor end cover, wherein an end part of the motor rotating shaft extends out of a casing of the outer rotor DC brushless motor assembly and is used for connecting a wind wheel. The outer motor brushless DC motor is characterized in that a protective cover is arranged outside the outer rotor DC brushless motor assembly and performs the protective function; and the protective cover and an end cover of the motor are in close fit and connection. The outer motor brushless DC motor has the advantages of low loss, high air quantity utilization rate, low noise and high efficiency. In addition, the outer motor brushless DC motor can effectively prevent harmful substances, such as rainwater, dust, salt fog, and the like. from entering the inside of the motor, prolong the service life and improve the operational reliability, and can be used in the severe environment.
Description
Technical field
The utility model relates to a kind of outer rotor brushless DC motor.
Background technology
Existing internal rotor has the brush direct current machine to comprise internal rotor brush direct current motor assembly, machine shaft and electric motor end cap, and stretch out outside the internal rotor brush direct current motor assembly shell end of machine shaft, is used to connect wind wheel and uses.During use, impeller is contained in the rotating shaft.It is simple in structure, realizes the protection of motor internal part easily, but brush motor has brush and commutator segment, the brush change book that weares and teares easily, and the carbon dust dust that drops enters motor internal, thereby shortens the life-span of blower fan greatly; In addition, the portion of energy that produced the bigger consumption of friction spark between carbon brush and the commutator segment, efficient is low.
The utility model content
The utility model is to overcome the deficiencies in the prior art and provide a kind of simple and reasonable for structure, compact, long service life, and energy consumption is low, and air quantity utilance height can waterproof and dustproof and a kind of outer rotor brushless DC motor of salt fog resistance corrosion.
In order to achieve the above object, the utility model is achieved in that it is a kind of outer rotor brushless DC motor, comprises external rotor dc brushless motor assembly, machine shaft and electric motor end cap, stretch out outside the external rotor dc brushless motor assembly shell one end of machine shaft, is used to connect wind wheel and uses; It is characterized in that: be provided with the protective cover of protection together and protective action outside described external rotor dc brushless motor, protective cover is sealed and matched with electric motor end cap and is connected.
Between the mating surface of described protective cover and electric motor end cap, be provided with the sealing gasket that seals.
Described protective cover is connected by screw with electric motor end cap, and they also are connected with the wind wheel spiral case by screw.
The utility model advantage compared with prior art is that loss is low, air quantity utilance height, noise is little, and the efficient height can prevent effectively that harmful substances such as rainwater, dust, salt fog from entering into motor internal, improved the useful life and the operational reliability of product, can in rugged environment, use.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a user mode structural representation of the present utility model.
Embodiment
Below in conjunction with drawings and Examples the utility model is done further detailed description:
As shown in Figure 1, 2, it is a kind of outer rotor brushless DC motor, comprises external rotor dc brushless motor assembly 6, machine shaft 4 and electric motor end cap 3, and stretch out outside the external rotor dc brushless motor assembly shell end of machine shaft, is used to connect wind wheel 9 usefulness.Be provided with the protective cover 7 of protection together and protective action outside external rotor dc brushless motor assembly, protective cover is sealed and matched with electric motor end cap and is connected, and can play the effect of protection.In an embodiment, between the mating surface of protective cover 7 and electric motor end cap 3, be provided with the sealing gasket 1 that seals, thereby further play the effect of protection, can prevent that harmful substances such as rainwater, dust, salt fog from entering into motor internal; Protective cover is connected by screw 5 with electric motor end cap, and they also are connected with wind wheel spiral case 9 by screw 2.
Claims (3)
1, a kind of outer rotor brushless DC motor comprises external rotor dc brushless motor assembly, machine shaft and electric motor end cap, and stretch out outside the external rotor dc brushless motor assembly shell end of machine shaft, is used to connect wind wheel and uses; It is characterized in that: be provided with the protective cover (7) of protection together and protective action outside described external rotor dc brushless motor assembly (6), protective cover is sealed and matched with electric motor end cap and is connected.
2, outer rotor brushless DC motor according to claim 1 is characterized in that: be provided with the sealing gasket (1) that seals between the mating surface of described protective cover (7) and electric motor end cap (3).
3, outer rotor brushless DC motor according to claim 1 is characterized in that: described protective cover (7) is connected by screw (5) with electric motor end cap (3), and they also are connected with the wind wheel spiral case by screw (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820099438XU CN201234180Y (en) | 2008-07-10 | 2008-07-10 | Outer rotor brushless DC motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820099438XU CN201234180Y (en) | 2008-07-10 | 2008-07-10 | Outer rotor brushless DC motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201234180Y true CN201234180Y (en) | 2009-05-06 |
Family
ID=40620568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820099438XU Expired - Fee Related CN201234180Y (en) | 2008-07-10 | 2008-07-10 | Outer rotor brushless DC motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201234180Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011063651A1 (en) * | 2009-11-25 | 2011-06-03 | 佛山市南海区东唐电机厂 | Outer rotor brushless dc motor |
-
2008
- 2008-07-10 CN CNU200820099438XU patent/CN201234180Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011063651A1 (en) * | 2009-11-25 | 2011-06-03 | 佛山市南海区东唐电机厂 | Outer rotor brushless dc motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: GUANGDONG FANS-TECH ELECTRIC CO., LTD. Free format text: FORMER NAME: FANSHIDA ELECTROMECHANICAL CO., LTD.;SHUNDE ZONE;FOSHAN CITY |
|
| CP03 | Change of name, title or address |
Address after: 528300 Guangdong, Foshan, Shunde District, Daliang street, Sha Shun Road, No. five, No. 9, No. two Patentee after: FANS-TECH ELECTRIC CO., LTD. Address before: Keyuan Shunde District of Ronggui high tech Industrial Development Zone, Guangdong province Foshan City Road 528305 No. 8 Patentee before: Foshan Shunde Fans-Tech Electric Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090506 Termination date: 20170710 |