CN201167267Y - Low-noise high efficient motor - Google Patents
Low-noise high efficient motor Download PDFInfo
- Publication number
- CN201167267Y CN201167267Y CNU2008200560696U CN200820056069U CN201167267Y CN 201167267 Y CN201167267 Y CN 201167267Y CN U2008200560696 U CNU2008200560696 U CN U2008200560696U CN 200820056069 U CN200820056069 U CN 200820056069U CN 201167267 Y CN201167267 Y CN 201167267Y
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Abstract
The utility model relates to a low noise high efficiency motor which comprises a stator (6), a rotor (5), a wind cover, a fan, a front cover (2), a casing (7) and a rear cover (9). An opening is arranged on the rotor (5) of the motor, a high-efficiency fan blade (1) is installed at the upper end of the rotor, a stainless steel separating sleeve (10) is installed outside the casing (7), and an air duct (11) is formed between the casing (7) and the stainless steel separating sleeve (10). Because the strong air current passes through the inner surface and the outer surface of the casing, the inside of the stator and the rotor, the air duct and the opening on the rotor, the change of the motor structure allows the heating part inside the motor to be cooled down completely and directly, the temperature rise of the motor to be reduced, the hot state resistance to be low when the coil is operated, and the electromagnetic performance to be obviously improved; and meanwhile, the bearings always function in the low-temperature state, thereby the mechanical loss is small, and the adoption of the high-efficiency axial fan can ensure the efficiency of the motor to be improved, and the service life thereof to be prolonged.
Description
Technical field
This project relates to a kind of low-noise high efficiency electric motor, belongs to technical field of motors.
Background technology
For a kind of low-noise high efficiency electric motor, its type of cooling and structure are very important.
The product of prior art is an example with the motor of degree of protection IP44/IP54, and its structure comprises fan housing, centrifugal fan, protecgulum, casing, bonnet, stator, rotor.
Behind the electric motor starting, fan leads by fan housing, and wind (air) cools off gelled motor casing appearance, thereby reaches the effect that motor is cooled off.
To the motor of degree of protection IP23, behind the electric motor starting, the acting of epitrochanterian fan blade makes air flows by the open type casing heat be discharged outward, and carries out the inner air and outer air exchange simultaneously, thereby reaches the effect that motor is cooled off.
The problem that above-mentioned motor exists is: after wind (air stream) comes out by fan housing, can spread seriously, make the air-flow guidance quality poor, distribute soon, the wind energy loss is big.
Summary of the invention
The purpose of this project is to provide a kind of low-noise high efficiency electric motor, and this motor adopts high efficiency aerofoil fan owing to structurally improve and design, various losses reduce, thereby electric efficiency is improved, and prolong motor useful life, because fan is built-in, noise is low simultaneously.
For achieving the above object, the technical solution scheme of this project is: this motor comprises loam cake, top chock, upper bearing (metal), lower bearing, efficient fan blade, casing, stator, perforate rotor, stainless steel spacer, pump cover bearing.
Loam cake and outermost stainless steel spacer with screw be connected, stainless steel spacer internal layer is casing, constitute air duct between stainless steel spacer and the casing, the upper and lower side of casing is top chock, pump cover, the internal layer of casing is that stator, bosom are the perforate rotors, efficient fan blade is installed in the top of perforate rotor, bearing is installed, the lower bearing of installation bottom of perforate rotor in the below of efficient fan blade.
During the motor operation, rotor drives efficient fan blade rotation acting, make air form air blast and enter into efficient fan blade by the runner of forming by casing and stainless steel spacer, enter motor internal by the loam cake hole again, go out through orifice flows such as stator and rotor air gap and stator core periphery air channel and rotor core air channels, get back in the air through the pump cover hole.The while air-flow is the hole in the perforate rotor also, flows out to efficient fan blade import, forms air ring.
The beneficial effect of this project: because the air draught passage is enclosed construction, and employing low noise efficient fan, the stainless steel spacer is adopted in the casing outside, so general mood flows and electromagnetic noise obtains obvious control, and comparing common ventilated machine noise reduction amplitude is about 10 decibels.
Below in conjunction with drawings and Examples this project is made comparisons and to explain.
Description of drawings
Fig. 1 is the low-noise high efficiency electric motor structural representation of this project;
Fig. 2 is the low-noise high efficiency electric motor rotor perforate schematic diagram of this project.
Embodiment
With reference to Fig. 1, this is the low-noise high efficiency electric motor structural representation of this project.
As shown in the figure, this electric machine structure is as follows: loam cake 1 is connected with outermost stainless steel spacer 10 usefulness screws, stainless steel spacer 10 internal layers are casings 7, constitute air duct 11 between stainless steel spacer 10 and the casing 7, the upper and lower side of casing 7 is top chock 3, pump cover 9, the internal layer of casing 7 is that stator 6, bosom are perforate rotors 5, efficient fan blade 1 is installed in the top of perforate rotor 5, and bearing 4 is installed, the lower bearing of installation bottom 8 of perforate rotor 5 in the below of efficient fan blade 1.
With reference to Fig. 2, this is the low-noise high efficiency electric motor rotor open-celled structure schematic diagram of this project.
As shown in the figure, open a wind circulation port 12, this hole 12 and stator 6 and rotor 5 air gap channel UNICOMs at rotor upper bearing (metal) place 4.
Described rotor, its hole are opened in the upper end of centre of rotor position, and the below in hole communicates with the air gap of stator, rotor.
Described motor air channel, comprise that electric machine temperature rise is extremely low because air blast, makes that the motor internal heat generating member obtains fully, directly cooling through perforate road on casing surfaces externally and internally, rotor inside and air gap channel thereof, the rotor, hot resistance is low during coil working, electromagnetic performance be improved significantly, simultaneously, the bearing work of remaining on forever under the low-temperature condition, mechanical loss is little, and adopt the efficient axis flow fan, thereby electric efficiency is improved, prolongs motor useful life.
Because the air draught passage is enclosed construction, and adopt the low noise efficient fan, the stainless steel spacer is adopted in the casing outside, so general mood flows and electromagnetic noise obtains obvious control, and comparing common ventilated machine noise reduction amplitude is about 10 decibels.
Though this project is described with reference to the above embodiments; but those of ordinary skill in the art; will be appreciated that above embodiment is used for illustrating this project; should understand and wherein can make variations and modifications and do not break away from this project in a broad sense; so be not as qualification to this project; as long as in the connotation scope of this project, to the variation of above-described embodiment, the protection range that distortion all will be included this project claim in.
Claims (5)
1. low-noise high efficiency electric motor, comprise stator (6), rotor (5), fan housing, fan, protecgulum (2), casing (7), bonnet (9), it is characterized in that: this rotor (5) is gone up perforate and in the rotor upper end one efficient fan blade (1) is installed, stainless steel spacer (10) is installed outside casing (7), is formed an air channel (11) between casing (7) and the stainless steel spacer (10).
2. low-noise high efficiency electric motor according to claim 1, it is characterized in that: described electric machine structure, loam cake (2) is connected with screw with outermost stainless steel spacer (10), stainless steel spacer (10) internal layer is casing (7), constitute air duct (11) between stainless steel spacer (10) and the casing (7), the upper and lower side of casing (7) is top chock (3), pump cover (9), the internal layer of casing (7) is stator (6), the bosom is perforate rotor (5), efficient fan blade (1) is installed in the top of perforate rotor (5), bearing (4) is installed, the lower bearing of installation bottom (8) of perforate rotor (5) in the below of efficient fan blade (1).
3. low-noise high efficiency electric motor according to claim 1 is characterized in that: described rotor (5), its hole are opened in the upper end of centre of rotor position, and the below in hole communicates with the air gap of stator, rotor.
4. low-noise high efficiency electric motor according to claim 1 and 2 is characterized in that: described motor air channel (11) comprises between stainless steel spacer (10) and the casing (7), between perforate rotor (5) and the stator (6).
5. low-noise high efficiency electric motor according to claim 1 and 2 is characterized in that: described motor shaft flow fan, installation be efficient fan blade (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200560696U CN201167267Y (en) | 2008-03-11 | 2008-03-11 | Low-noise high efficient motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200560696U CN201167267Y (en) | 2008-03-11 | 2008-03-11 | Low-noise high efficient motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201167267Y true CN201167267Y (en) | 2008-12-17 |
Family
ID=40192658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200560696U Expired - Fee Related CN201167267Y (en) | 2008-03-11 | 2008-03-11 | Low-noise high efficient motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201167267Y (en) |
-
2008
- 2008-03-11 CN CNU2008200560696U patent/CN201167267Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081217 Termination date: 20150311 |
|
| EXPY | Termination of patent right or utility model |