CN102842990A - Low wind noise motor - Google Patents
Low wind noise motor Download PDFInfo
- Publication number
- CN102842990A CN102842990A CN2012103037738A CN201210303773A CN102842990A CN 102842990 A CN102842990 A CN 102842990A CN 2012103037738 A CN2012103037738 A CN 2012103037738A CN 201210303773 A CN201210303773 A CN 201210303773A CN 102842990 A CN102842990 A CN 102842990A
- Authority
- CN
- China
- Prior art keywords
- motor
- radiator fan
- low wind
- wind noise
- section area
- 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.)
- Pending
Links
Images
Landscapes
- Motor Or Generator Cooling System (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention provides a low wind motor and relates to the technical field of a motor. The low wind noise motor is capable of solving the technical problem of reducing wind noise. The low wind noise motor comprises a shell, a stator, a rotor, and a cooling fan, wherein the stator, the rotor and the cooling fan are disposed in the shell. The low wind noise motor is characterized in that the width diameter ratio value of the cooling fan is 0.1-0.5. The low wind noise motor is low in aerodynamic noise.
Description
Technical field
The present invention relates to motor technology, particularly relate to the make an uproar technology of motor of a kind of low wind.
Background technology
During the motor operation, the aerodynamic noise that radiator fan produced on the motor is divided into blade sympathetic response sound and eddy current sound two aspects.
The blade sympathetic response sound that radiator fan produced must at first be eliminated, generally also is easy to eliminate, and the frequency band broad of eddy current sound, its noise size depends on planform, the size of fan, and wind path is imported and exported structural parameters such as area.
The radiator fan of existing motor is to declare electric machine temperature rise is controlled in certain scope; It is bigger that the external diameter of radiator fan and flabellum width all design; When therefore existing motor moves; The eddy current sound that flabellum produced of radiator fan is also very big, not only influences surrounding enviroment, also can influence efficiency of motor.
Summary of the invention
To the defective that exists in the above-mentioned prior art, technical problem to be solved by this invention provides the low low wind of a kind of aerodynamic noise motor of making an uproar.
In order to solve the problems of the technologies described above, a kind of low wind provided by the present invention motor of making an uproar comprises casing, and is installed in stator, rotor, radiator fan in the casing respectively, it is characterized in that:
The width-diameter ratio of said radiator fan is:
Wherein, B is the width of the flabellum 1 of radiator fan; D is the external diameter of radiator fan, and the value of
is between 0.1～0.5.
Further, said casing is provided with air inlet and air outlet, and said air inlet is positioned at the inlet side of radiator fan, and said air outlet is positioned at the air side of radiator fan, and the ratio of the radial section area of air inlet and the radial section area of air outlet is:
Wherein,
is the radial section area of air inlet;
is the radial section area of air outlet, and the value of
is between 0.7～1.3.
The low wind provided by the invention motor of making an uproar reasonably designs the width-diameter ratio of radiator fan, thereby under the situation that electric machine temperature rise does not significantly improve, has reduced the aerodynamic noise of radiator fan, and invisible waste is compared existing motor of the same type will reduce by 20%～50%.
Description of drawings
Fig. 1 is the make an uproar end view of the radiator fan in the motor of the low wind of the embodiment of the invention.
Embodiment
Below in conjunction with description of drawings embodiments of the invention are described in further detail, but present embodiment is not limited to the present invention, every employing analog structure of the present invention and similar variation thereof all should be listed protection scope of the present invention in.
As shown in Figure 1, a kind of low wind that the embodiment of the invention the provided motor of making an uproar comprises casing, and is installed in stator, rotor, radiator fan in the casing respectively, it is characterized in that:
The width-diameter ratio of said radiator fan is:
Wherein, B is the width of the flabellum 1 of radiator fan; D is the external diameter of radiator fan, and the value of
is between 0.1～0.5.
In the embodiment of the invention, said casing is provided with air inlet and air outlet, and said air inlet is positioned at the inlet side of radiator fan, and said air outlet is positioned at the air side of radiator fan, and the ratio of the radial section area of air inlet and the radial section area of air outlet is:
Wherein,
is the radial section area of air inlet;
is the radial section area of air outlet, and the value of
is between 0.7～1.3.
Through experiment: the low wind that the embodiment of the invention the provided motor of making an uproar; Aerodynamic noise is compared existing motor of the same type has obvious reduction; And the efficient of radiator fan is significantly increased, and invisible waste is compared existing motor of the same type will reduce by 20%～50%, and under the situation of radiator fan diameter less than existing motor radiating fan of the same type; The temperature rise in motor when operation does not significantly improve, sometimes even the situation that also has temperature rise to reduce on the contrary.
Claims (2)
1. low wind motor of making an uproar comprises casing, and is installed in stator, rotor, radiator fan in the casing respectively, it is characterized in that:
The width-diameter ratio of said radiator fan is:
Wherein, B is the width of the flabellum 1 of radiator fan; D is the external diameter of radiator fan, and the value of
is between 0.1～0.5.
2. the low wind according to claim 1 motor of making an uproar; It is characterized in that: said casing is provided with air inlet and air outlet; Said air inlet is positioned at the inlet side of radiator fan; Said air outlet is positioned at the air side of radiator fan, and the ratio of the radial section area of air inlet and the radial section area of air outlet is:
Wherein,
is the radial section area of air inlet;
is the radial section area of air outlet, and the value of
is between 0.7～1.3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103037738A CN102842990A (en) | 2012-08-24 | 2012-08-24 | Low wind noise motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103037738A CN102842990A (en) | 2012-08-24 | 2012-08-24 | Low wind noise motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102842990A true CN102842990A (en) | 2012-12-26 |
Family
ID=47370116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103037738A Pending CN102842990A (en) | 2012-08-24 | 2012-08-24 | Low wind noise motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102842990A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106812722A (en) * | 2015-12-02 | 2017-06-09 | 建准电机工业股份有限公司 | Axial flow fan and fan wheel thereof |
| CN109854533A (en) * | 2019-01-30 | 2019-06-07 | 广东美的制冷设备有限公司 | Fan blade, fan assembly, ducting part and air conditioner |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2075715U (en) * | 1990-08-03 | 1991-04-24 | 航空航天部第七设计研究院 | Energy-saving low-noise axial-flow fan |
| CN2765376Y (en) * | 2004-11-22 | 2006-03-15 | 上海电器科学研究所（集团）有限公司 | Fan structure of common cage type three-phase asynchronous motor |
| CN101958603A (en) * | 2010-10-28 | 2011-01-26 | 无锡市中达电机有限公司 | Fan and fan cover combined structure of motor |
| CN102322430A (en) * | 2011-10-24 | 2012-01-18 | 永济新时速电机电器有限责任公司 | Double-air channel internal fan |
| CN202798339U (en) * | 2012-08-24 | 2013-03-13 | 上海特波电机有限公司 | Low-wind-noise motor |
-
2012
- 2012-08-24 CN CN2012103037738A patent/CN102842990A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2075715U (en) * | 1990-08-03 | 1991-04-24 | 航空航天部第七设计研究院 | Energy-saving low-noise axial-flow fan |
| CN2765376Y (en) * | 2004-11-22 | 2006-03-15 | 上海电器科学研究所（集团）有限公司 | Fan structure of common cage type three-phase asynchronous motor |
| CN101958603A (en) * | 2010-10-28 | 2011-01-26 | 无锡市中达电机有限公司 | Fan and fan cover combined structure of motor |
| CN102322430A (en) * | 2011-10-24 | 2012-01-18 | 永济新时速电机电器有限责任公司 | Double-air channel internal fan |
| CN202798339U (en) * | 2012-08-24 | 2013-03-13 | 上海特波电机有限公司 | Low-wind-noise motor |
Non-Patent Citations (1)
| Title |
|---|
| 应善成 等: "降低小型封闭外扇冷异步电动机通风噪声的探讨", 《中小型电机》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106812722A (en) * | 2015-12-02 | 2017-06-09 | 建准电机工业股份有限公司 | Axial flow fan and fan wheel thereof |
| CN109854533A (en) * | 2019-01-30 | 2019-06-07 | 广东美的制冷设备有限公司 | Fan blade, fan assembly, ducting part and air conditioner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20130089425A1 (en) | Blade structure for centrifugal fan | |
| CN204497880U (en) | A kind of iron-shell motor | |
| CN203840138U (en) | An oil cooling cooling system for an electric automobile | |
| CN203883644U (en) | Three-phase asynchronous motor | |
| CN102624150A (en) | Low-noise totally-sealed internal cooling system for medium and small-sized motor | |
| CN102842990A (en) | Low wind noise motor | |
| CN201576969U (en) | Motor rotor structure | |
| CN202798339U (en) | Low-wind-noise motor | |
| CN103899364A (en) | Rim sealing structure of high pressure turbine of aircraft engine, high pressure turbine and engine | |
| CN201758309U (en) | Air-conditioner stator punching sheet | |
| CN202435154U (en) | Energy-efficient motor forcing realization of internal circulation heat radiation | |
| CN102931751A (en) | End-part cooling structure for rotor winding of bipolar wound rotor motor | |
| CN204334228U (en) | A kind of series excited machine | |
| CN206461450U (en) | A kind of interior wind path structure of asynchronous machine | |
| CN202789700U (en) | Cooling device for variable frequency motor | |
| CN206077156U (en) | A kind of motor radiating structure | |
| CN204992998U (en) | Self cooling PMSM of special power assisted steering of new energy automobile | |
| CN203466672U (en) | Motor end cover structure improving ventilation effect | |
| CN203278547U (en) | Motor wind road structure | |
| CN204408033U (en) | The iron-shell motor of a kind of stator punching and application thereof | |
| CN107514390B (en) | Fluid pump | |
| CN203522440U (en) | Backward-inclined centrifugal fan for electric motor | |
| CN205017145U (en) | Self -cooled permanent -magnet machine | |
| CN204205749U (en) | Compressor, motor, stator and stator core thereof | |
| CN204168029U (en) | Rotor for auto starter assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121226 |