CN202550801U - Low-noise fully-enclosed internally-cooled cooling system for small/medium-sized motor - Google Patents
Low-noise fully-enclosed internally-cooled cooling system for small/medium-sized motor Download PDFInfo
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- CN202550801U CN202550801U CN2012201786376U CN201220178637U CN202550801U CN 202550801 U CN202550801 U CN 202550801U CN 2012201786376 U CN2012201786376 U CN 2012201786376U CN 201220178637 U CN201220178637 U CN 201220178637U CN 202550801 U CN202550801 U CN 202550801U
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- fan
- fan housing
- cooling system
- cooled cooling
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Abstract
The utility model relates to a low-noise fully-enclosed internally-cooled cooling system for a small/medium-sized motor. The low-noise fully-enclosed internally-cooled cooling system comprises a stator and a fan, wherein the stator is provided with axial ventilation holes; the stator consists of an integrated shell iron core and a stator winding embedded on the iron core, and the integrated shell iron core is formed in such a manner that punched sheets with axial ventilation holes are stacked and compressed; the fan is a plano-convex airfoil axial-flow fan; and the outside of the fan is housed by a fan housing, the fan housing consists of a fan housing window, sound absorbing layers, a porous plate and a fan housing ring, both the fan housing window and the fan housing ring are octagonal structures which are formed in such a manner that steel plates are spliced and welded, and the sound absorbing layers are respectively laid among the fan housing window, the fan housing ring and the porous plate. The low-noise fully-enclosed internally-cooled cooling system for the small/medium-sized motor has the advantages that the cooling efficiency is increased, the air volume required for cooling the motor is reduced, and the aerodynamic noise and vibration caused due to the aerodynamic noise are reduced; and shown by the test results of a model motor, with the adoption of the low-noise fully-enclosed internally-cooled cooling system, the cooling efficiency of a designed novel asynchronous motor is about 5% higher than that of a similar ordinary asynchronous motor, and the airborne noise of the designed novel asynchronous motor is reduced by 16 dB(A) compared with that of the similar ordinary asynchronous motor.
Description
Technical field
The utility model relates to a kind of middle-size and small-size motor, specifically is a kind of inner-cooled cooling system that iron core, winding produce the middle-size and small-size motor of heat that is used to take away.
Background technology
Small and middle induction motors cooling system traditional in the prior art adopts outer cooling form.The heat of rotor winding and iron core generation passes through heat transmission and passes to support, through the wind direction external world distribute heat of the radiating ribs on the support by the centrifugal fan generation.Have certain clearance between stator core and the support, cause hot transmission loss, radiating efficiency is not high, and the noise that is produced by the fan high speed rotating is bigger.
Summary of the invention
The utility model is in order to improve middle-size and small-size motor cooling efficient, to reduce required cooling air quantity, to improve power of motor density, reducing noise of motor, and provide a kind of middle-size and small-size motor low noise totally-enclosed inner-cooled cooling system.
For realizing above-mentioned purpose, the scheme of the utility model is: the totally-enclosed inner-cooled cooling system of a kind of middle-size and small-size motor low noise, comprise stator, fan, and be characterized in: axial ventilation hole is set on the stator.
Stator is made up of integrated housing iron core and the stator winding that is inlaid on the iron core, and integrated housing iron core is overrided to form by the punching that has axial ventilation hole.
Fan is a plano-convex aerofoil profile aerofoil fan.
The fan outside is covered with fan housing, and fan housing is made up of fan housing window, absorbent treatment, porous plate and fan housing circle, the eight-sided formation that fan housing window and fan housing circle form by the steel plate welding; Between fan housing window, fan housing circle and porous plate, be covered with absorbent treatment respectively.
The beneficial effect of the utility model is:
The efficient cooling system of the novel enclosed of middle-size and small-size motor of the utility model has adopted brand-new housing iron core integral structure; On full lamination housing iron core integral structure, axial ventilation hole is set; To replace the radiating ribs on the conventional motor casing; Avoid the hot transmission loss that causes because of the gap between conventional asynchronous motor stator iron core and casing, improved radiating efficiency; Adopt the plano-convex aerofoil profile tube-axial fan of optimal design to replace general centrifugal fan, improved drafting efficiency, reduced aerodynamic noise; Adopt the integrated compound sound-absorption structural fan housing of forming by outer cover, sound-absorbing material and porous plate, reduced the aerodynamic noise that produces because of the fan high speed rotating.
The efficient cooling system of the novel enclosed of middle-size and small-size motor of the utility model has improved cooling effectiveness, reduces motor and cools off required air quantity, has reduced aerodynamic noise and consequent vibration.Prototyping testing is the result show, adopts the new type asynchronous motor of the utility model design, and it is about 5% that its cooling effectiveness is approximately higher than similar common asynchronous electric, and the more similar normal asynchronous of its airborne noise has reduced 16dB (A).
Description of drawings
Fig. 1 is the structure cutaway view of the utility model;
Fig. 2 is the cutaway view of integrated housing iron core;
Fig. 3 is the core stamping plane graph that has axial ventilation hole;
Fig. 4 is the tube-axial fan structural front view;
Fig. 5 is the left view of Fig. 4;
Fig. 6 is the fan housing structure cutaway view;
Fig. 7 is the left view of Fig. 6.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
As shown in Figure 1, the totally-enclosed inner-cooled cooling system of middle-size and small-size motor low noise of the utility model comprises stator 5, fan 6, fan housing 7 etc.Axial ventilation hole 8 is set on the stator 5.Fan 6 outsides are covered with fan housing 7.
Wherein the direction of arrow is the wind path trend.Tube-axial fan 6, is taken the heat of motor out of through the axial ventilation hole of integrated housing iron core the cold wind suction through the fan housing window, gets in the extraneous air.
As shown in Figure 2, stator 5 is made up of integrated housing iron core and the stator winding that is inlaid on the iron core.Integrated housing iron core (Fig. 3) is overrided to form by the punching that has axial ventilation hole.Housing iron core integral structure avoids hot transmission loss to improve the radiating efficiency of whole motor.
Like Fig. 4, shown in 5, adopted the plano-convex aerofoil profile aerofoil fan 6 of optimal design to replace general centrifugal fan, can reduce the wind abrasion significantly, improve aerodynamic efficiency, reduce noise of motor.
Like Fig. 6, shown in 7, fan housing 7 is made up of fan housing window 1, absorbent treatment 2, porous plate 3 and fan housing circle 4.Fan housing window 1 all is the eight-sided formation that formed by the steel plate welding with fan housing circle 4; Porous plate 3 is to be formed by the welding of polylith stephanoporate steel plate; Between fan housing window 1, fan housing circle 4 and porous plate, be covered with the absorbent treatment of forming by sound-absorbing material.
Claims (4)
1. the one kind middle-size and small-size totally-enclosed inner-cooled cooling system of motor low noise comprises stator (5), fan (6), it is characterized in that: axial ventilation hole (8) is set on the said stator (5).
2. the totally-enclosed inner-cooled cooling system of middle-size and small-size motor low noise according to claim 1; It is characterized in that: said stator (5) is made up of integrated housing iron core and the stator winding that is inlaid on the iron core, and integrated housing iron core is overrided to form by the punching that has axial ventilation hole.
3. the totally-enclosed inner-cooled cooling system of middle-size and small-size motor low noise according to claim 1 is characterized in that: said fan (6) is a plano-convex aerofoil profile tube-axial fan.
4. according to claim 1 or the totally-enclosed inner-cooled cooling system of 3 described middle-size and small-size motor low noises; It is characterized in that: said fan (6) outside is covered with fan housing (7); Fan housing (7) is made up of fan housing window (1), absorbent treatment (2), porous plate (3) and fan housing circle (4), the eight-sided formation that fan housing window (1) and fan housing circle (4) form by the steel plate welding; Between fan housing window (1), fan housing circle (4) and porous plate (3), be covered with absorbent treatment respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201786376U CN202550801U (en) | 2012-04-25 | 2012-04-25 | Low-noise fully-enclosed internally-cooled cooling system for small/medium-sized motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201786376U CN202550801U (en) | 2012-04-25 | 2012-04-25 | Low-noise fully-enclosed internally-cooled cooling system for small/medium-sized motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202550801U true CN202550801U (en) | 2012-11-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201786376U Expired - Lifetime CN202550801U (en) | 2012-04-25 | 2012-04-25 | Low-noise fully-enclosed internally-cooled cooling system for small/medium-sized motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202550801U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102624150A (en) * | 2012-04-25 | 2012-08-01 | 中国船舶重工集团公司第七0四研究所 | Low-noise totally-sealed internal cooling system for medium and small-sized motor |
-
2012
- 2012-04-25 CN CN2012201786376U patent/CN202550801U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102624150A (en) * | 2012-04-25 | 2012-08-01 | 中国船舶重工集团公司第七0四研究所 | Low-noise totally-sealed internal cooling system for medium and small-sized motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151117 Address after: 200031 Xuhui District, Hengshan Road, No. 10, Patentee after: SHANGHAI CSIC SHIP PROPULSION EQUIPMENT CO., LTD. Address before: 200031 Xuhui District, Hengshan Road, No. 10, Patentee before: No.704 Institute of China Shipbuilding Industry Corporation |
|
| CX01 | Expiry of patent term |
Granted publication date: 20121121 |
|
| CX01 | Expiry of patent term |