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
- fan
- motor
- low
- air
- wind
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- Expired - Lifetime
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- 230000017525 heat dissipation Effects 0.000 claims description 11
- 230000005855 radiation Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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- Motor Or Generator Cooling System (AREA)
- Motor Or Generator Frames (AREA)
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 a motor technology especially relates to a technique of low wind noise motor.
Background
When the motor runs, aerodynamic noise generated by a cooling fan on the motor is divided into blade resonance sound and vortex sound.
The blade resonance noise generated by the heat dissipation fan must be eliminated firstly, and is easy to eliminate, while the frequency band of the vortex noise is wide, and the noise depends on the structural parameters such as the structural shape and size of the fan, the inlet and outlet area of the air path and the like.
The existing heat dissipation fan of the motor controls the temperature rise of the motor within a certain range, and the outer diameter and the width of the fan blade of the heat dissipation fan are designed to be larger, so that when the existing motor runs, the vortex sound generated by the fan blade of the heat dissipation fan is also large, the peripheral environment is influenced, and the efficiency of the motor is also influenced.
SUMMERY OF THE UTILITY MODEL
To the defect that exists among the above-mentioned prior art, the utility model aims to solve the technical problem that a low wind noise motor that aerodynamic noise is low is provided.
In order to solve the technical problem, the utility model provides a low wind noise motor, including the casing, and install stator, rotor, radiator fan in the casing respectively, its characterized in that:
the width-diameter ratio of the heat radiation fan is as follows:
wherein b is the width of the fan blade 1 of the heat dissipation fan, D is the outer diameter of the heat dissipation fan,
the value of (a) is between 0.1 and 0.5.
Further, be equipped with air intake and air outlet on the casing, the air intake is located radiator fan's air inlet side, the air outlet is located radiator fan's air-out side, and the radial cross sectional area of air intake and the radial cross sectional area's of air outlet ratio are:
wherein,
is the radial cross-sectional area of the air inlet,
is the radial cross-sectional area of the air outlet,the value of (a) is between 0.7 and 1.3.
The utility model provides a low wind noise motor, reasonable design radiator fan's width to do not show under the condition that improves at the motor temperature rise, reduced radiator fan's aerodynamic noise, the windage is compared and is had the same type of motor and will reduce 20% ~ 50%.
Drawings
Fig. 1 is a side view of a heat dissipation fan in a low wind noise motor according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be described in detail with reference to the accompanying drawings, but the present invention is not limited to the embodiments, and all similar structures and similar variations thereof adopted by the present invention should be included in the protection scope of the present invention.
As shown in fig. 1, the embodiment of the utility model provides a low wind noise motor, including the casing, and install stator, rotor, radiator fan in the casing respectively, its characterized in that:
the width-diameter ratio of the heat radiation fan is as follows:
wherein b is the width of the fan blade 1 of the heat dissipation fan, D is the outer diameter of the heat dissipation fan,
the value of (a) is between 0.1 and 0.5.
The embodiment of the utility model provides an in, be equipped with air intake and air outlet on the casing, the air intake is located radiator fan's air inlet side, the air outlet is located radiator fan's air-out side, and the ratio of the radial cross sectional area of air intake and the radial cross sectional area of air outlet is:
wherein,
is the radial cross-sectional area of the air inlet,
is the radial cross-sectional area of the air outlet,the value of (a) is between 0.7 and 1.3.
Through experiments, the method comprises the following steps: the embodiment of the utility model provides a low wind noise motor, aerodynamic noise compare current motor of the same type have obvious reduction, and radiator fan's efficiency is showing and is improving, and the wind consumption is compared current motor of the same type and will be reduced 20% ~ 50%, and under radiator fan diameter is less than current motor radiator fan of the same type's the condition, the temperature rise when the motor moves is not showing and is improving, sometimes even still has the temperature rise the condition that reduces on the contrary.
Claims (2)
1. The utility model provides a low wind noise motor, includes the casing, and installs stator, rotor, radiator fan in the casing respectively, its characterized in that:
the width-diameter ratio of the heat radiation fan is as follows:
wherein b is the width of the fan blade 1 of the heat dissipation fan, D is the outer diameter of the heat dissipation fan,
the value of (a) is between 0.1 and 0.5.
2. The low wind noise motor of claim 1, wherein: be equipped with air intake and air outlet on the casing, the air intake is located radiator fan's air inlet side, the air outlet is located radiator fan's air-out side, and the radial cross sectional area of air intake and the radial cross sectional area's of air outlet ratio are:
wherein,
is the radial cross-sectional area of the air inlet,is the radial cross-sectional area of the air outlet,
the value of (a) is between 0.7 and 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 |