CN202798339U - Low-wind-noise motor - Google Patents
Low-wind-noise motor Download PDFInfo
- Publication number
- CN202798339U CN202798339U CN201220422954.8U CN201220422954U CN202798339U CN 202798339 U CN202798339 U CN 202798339U CN 201220422954 U CN201220422954 U CN 201220422954U CN 202798339 U CN202798339 U CN 202798339U
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- Prior art keywords
- radiator fan
- motor
- wind
- low
- section area
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Abstract
The utility model relates to the technical field of motors, in particular to a low-wind-noise motor, and aims at reducing wind noise. The low-wind-noise motor comprises a casing and a stator, a rotor and a radiating fan which are respectively arranged in the casing. The low-wind-noise motor is characterized in that the width-diameter ratio of the radiating fan ranges from 0.1-0.5. The low-wind-noise motor is low in aerodynamic noise.
Description
Technical field
The utility model relates to motor technology, particularly relates to the make an uproar technology of motor of a kind of low wind.
Background technology
During the motor operation, the aerodynamic noise that the radiator fan on the motor produces is divided into blade sympathetic response sound and eddy current sound two aspects.
The blade sympathetic response sound that radiator fan produces must at first be eliminated, and generally also be easy to eliminate, and the frequency band of eddy current sound is wider, and its noise size depends on planform, the size of fan, and wind path is imported and exported the 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 larger that the external diameter of radiator fan and flabellum width all design, during therefore existing motor operation, the eddy current sound that the flabellum of radiator fan produces is also very large, not only affect surrounding enviroment, also can affect the efficient of motor.
The utility model content
For the defective that exists in the above-mentioned prior art, technical problem to be solved in the utility model 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 utility model motor of making an uproar comprises casing, and is installed in respectively stator, rotor, radiator fan in the casing, it is characterized in that:
The width-diameter ratio of described radiator fan is:
Wherein, b is the width of the flabellum 1 of radiator fan, and D is the external diameter of radiator fan,
Value between 0.1～0.5.
Further, described casing is provided with air inlet and air outlet, and described air inlet is positioned at the inlet side of radiator fan, and described 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,
Be the radial section area of air inlet,
Be the radial section area of air outlet,
Value between 0.7～1.3.
The low wind that the utility model the provides motor of making an uproar reasonably designs the width-diameter ratio of radiator fan, thereby in 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 utility model embodiment.
Embodiment
Below in conjunction with description of drawings embodiment of the present utility model is described in further detail, but present embodiment is not limited to the utility model, every employing analog structure of the present utility model and similar variation thereof all should be listed protection range of the present utility model in.
As shown in Figure 1, a kind of low wind that the utility model embodiment the provides motor of making an uproar comprises casing, and is installed in respectively stator, rotor, radiator fan in the casing, it is characterized in that:
The width-diameter ratio of described radiator fan is:
Wherein, b is the width of the flabellum 1 of radiator fan, and D is the external diameter of radiator fan,
Value between 0.1～0.5.
Among the utility model embodiment, described casing is provided with air inlet and air outlet, described air inlet is positioned at the inlet side of radiator fan, and described 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,
Be the radial section area of air inlet,
Be the radial section area of air outlet,
Value between 0.7～1.3.
Through experiment: the low wind that the utility model embodiment the provides motor of making an uproar, aerodynamic noise is compared existing motor of the same type obvious reduction, and the efficient of radiator fan is significantly increased, invisible waste is compared existing motor of the same type will reduce by 20%～50%, and in 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 respectively stator, rotor, radiator fan in the casing, it is characterized in that:
The width-diameter ratio of described radiator fan is:
Wherein, b is the width of the flabellum 1 of radiator fan, and D is the external diameter of radiator fan,
Value between 0.1～0.5.
2. the low wind according to claim 1 motor of making an uproar, it is characterized in that: described casing is provided with air inlet and air outlet, described air inlet is positioned at the inlet side of radiator fan, described 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,
Be the radial section area of air inlet,
Be the radial section area of air outlet,
Value between 0.7～1.3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220422954.8U CN202798339U (en) | 2012-08-24 | 2012-08-24 | Low-wind-noise motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220422954.8U CN202798339U (en) | 2012-08-24 | 2012-08-24 | Low-wind-noise motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202798339U true CN202798339U (en) | 2013-03-13 |
Family
ID=47825512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220422954.8U Expired - Lifetime CN202798339U (en) | 2012-08-24 | 2012-08-24 | Low-wind-noise motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202798339U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102842990A (en) * | 2012-08-24 | 2012-12-26 | 上海特波电机有限公司 | Low wind noise motor |
-
2012
- 2012-08-24 CN CN201220422954.8U patent/CN202798339U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102842990A (en) * | 2012-08-24 | 2012-12-26 | 上海特波电机有限公司 | Low wind noise motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |
|
| CX01 | Expiry of patent term |