CN205248981U - Outer wind path structure of high -efficient low noise three -phase asynchronous motor - Google Patents
Outer wind path structure of high -efficient low noise three -phase asynchronous motor Download PDFInfo
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- CN205248981U CN205248981U CN201520946882.0U CN201520946882U CN205248981U CN 205248981 U CN205248981 U CN 205248981U CN 201520946882 U CN201520946882 U CN 201520946882U CN 205248981 U CN205248981 U CN 205248981U
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- fan housing
- axle sleeve
- fan
- hypotenuse part
- motor
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Abstract
The utility model discloses an outer wind path structure of high -efficient low noise three -phase asynchronous motor, through with fan housing and frame heat dissipation muscle overlap joint, and adopt convex transition structure on the fan housing, and simultaneously, two -way flabellum of the adoption formula of leaning forward and tubaeform axle sleeve, in the ventilation hole entering back of cooling blast from the fan housing, throw away under the combined action of two -way flabellum of the formula of leaning forward and tubaeform axle sleeve, reach the circular -arc -transition structure part, guide transition through circular -arc -transition structure, change the air current flow direction, avoid the local vortex in fan housing corner, reduce the eddy current crack of motor, and reduction energy consumption, the efficiency of the fan is improved, the air current that changes the flow direction is along between the heat dissipation muscle of fan housing inner wall flow direction frame and end cover, carry out effectively cooling to the motor. The utility model has the advantages of reasonable design, can effectively improve the electric efficiency, be in the work of the highest efficiency point when making the motor operation, reduce motor noise, effectively satisfy high -efficient three -phase asynchronous motor's high -efficient low noise demand.
Description
Technical field
The utility model belongs to electric motor temperature reduction cooling technology field, is specifically related to a kind of highly effective low noise threephase asynchronous outer ventilation circuit structure.
Background technology
Under normal circumstances, the outer ventilation circuit structure of totally-enclosed external fan cold type threephase asynchronous is made up of motor fan housing, external fan and support radiating ribs etc., in order to meet user's forward and backward requirement, conventionally adopts centrifugal fan, centrifugal fan efficiency is lower, only has 25%～30% left and right. In work rotary course Leaf passage because gas particle inertia forms whirlpool, and air-flow is after centrifugal fan rotation throws away, because fan housing inner surface static pressure is very large, cause air-flow finely not flow, form local eddy currents in fan housing corner, this has not only increased energy consumption, has reduced fan efficiency, and has increased the ventilation noise of motor. The centrifugal fan wind abrasion of totally-enclosed exterior wing cold type threephase asynchronous occupies very large deal in motor total losses, and on special motor within the scope of relatively high power, windage loss has greatly reduced electric efficiency.
Utility model content
The purpose of this utility model is for above-mentioned the deficiencies in the prior art, provides a kind of simple and reasonable for structure, the threephase asynchronous outer ventilation circuit structure that energy consumption is low, efficiency is high, noise is low.
For realizing the technical scheme that the purpose of this utility model adopts be: a kind of highly effective low noise threephase asynchronous outer ventilation circuit structure, comprise electric machine stand, end cap and fan housing, all sides of described support and end cap are laid with respectively the radiating ribs of some mutual correspondences, fan housing opening overlaps mutually with the radiating ribs of support week side, it between the end face of fan housing and sidewall, is streamlined arc transition structure, in fan housing, in machine shaft end, FC bidirectional fan is installed, this fan comprises the two-way flabellum of FC and tubaeform axle sleeve, described flabellum and machine shaft center line are at same plane, fan housing end face is laid with netted air vent.
Described tubaeform axle sleeve comprises axle sleeve part and the horn section that one connects, described flabellum comprises the base part being connected with axle sleeve part and the first hypotenuse part being connected with described horn section and divides the 3rd adjacent hypotenuse part and the second hypotenuse part adjacent with the first hypotenuse part with bottom side portion respectively, between described the second hypotenuse part and the 3rd hypotenuse part, is arc transition structure.
The angle of described horn section and the first hypotenuse part and machine shaft center line is 65-70 degree.
The angle of described the second hypotenuse part and machine shaft center line is 55-65 degree.
The angle of described the 3rd hypotenuse part and machine shaft center line is 35-45 degree.
The utility model is by overlapping fan housing and support radiating ribs, and on fan housing, adopt circular arc transition structure, simultaneously, adopt the two-way flabellum of FC and tubaeform axle sleeve, at cooling blast from the air vent of fan housing enters, under the acting in conjunction of the two-way flabellum of FC and tubaeform axle sleeve, throw away, arrive arc transition structure division, through the guiding transition of arc transition structure, change air flow direction, avoid fan housing corner local eddy currents, reduce the eddy current crack of motor, and low-energy-consumption falls, improve fan efficiency, changing the air-flow flowing to flows to along fan housing inwall between the radiating ribs of support and end cap, motor is carried out to effective temperature-reducing cooling. the utility model reasonable in design, can effectively improve electric efficiency, while making motor operation, in best efficiency point work, reduces noise of motor, effectively meets the high-efficient low-noise demand of efficient three-phase asynchronous motor. be combined and be optimized according to the inherent law of hydrodynamics fan and gas flow and CFD finite element simulation technology, each corner degree of the horn section of the tubaeform axle sleeve of the utility model and flabellum, in above-mentioned scope, can reach desirable optimum efficiency.
Brief description of the drawings
Below in conjunction with accompanying drawing, the utility model is described further:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the side view of Fig. 1;
Fig. 3 is the structural representation of the utility model FC bidirectional fan.
Detailed description of the invention
Referring to Fig. 1, highly effective low noise threephase asynchronous outer ventilation circuit structure of the present utility model, comprise electric machine stand 5, end cap 3 and fan housing 7, all sides of described support 5 and end cap 3 are laid with respectively the radiating ribs 4 of some mutual correspondences, the radiating ribs of 5 weeks sides of fan housing 7 openings and support overlaps staggered mutually, it between the end face of fan housing 7 and sidewall, is streamlined arc transition structure, in fan housing 7, in machine shaft 1 end, FC bidirectional fan 2 is installed, this fan 2 comprises the two-way flabellum of FC and tubaeform axle sleeve, the center line of described flabellum and machine shaft 1 is at same plane, distribute radially, fan housing 7 end faces are laid with netted air vent 6. described tubaeform axle sleeve comprises axle sleeve part 21 and the horn section 22 that one connects, described flabellum comprises the base part 23 being connected with axle sleeve part 21 and the first hypotenuse part 24 being connected with described horn section 22, and the three hypotenuse part 26 adjacent with base part 23 and the second hypotenuse part 25 adjacent with the first hypotenuse part 24 respectively, between described the second hypotenuse part 25 and the 3rd hypotenuse part 26, it is arc transition structure 27, the angle of stating horn section 22 and the first hypotenuse part 24 and machine shaft center line is 68 degree, described the second hypotenuse part 25 is 60 degree with the angle of machine shaft center line, described the 3rd hypotenuse part 26 is 40 degree with the angle of machine shaft center line.
Applicant is through analysis of experiments, and the angle of described horn section and the first hypotenuse part and machine shaft center line is 65-70 degree; The angle of described the second hypotenuse part and machine shaft center line is 55-65 degree; The angle of described the 3rd hypotenuse part and machine shaft center line is 35-45 degree, and above-mentioned angle, in described scope, all can reach desirable energy-saving and cost-reducing Noise Reduction, and the efficiency of centrifugal fan can effectively be brought up to 20-30%.
The technical solution of the utility model is not restricted in the scope of embodiment described in the utility model, and the utility model not technology contents of detailed description is known technology.
Claims (5)
1. a highly effective low noise threephase asynchronous outer ventilation circuit structure, comprise electric machine stand, end cap and fan housing, it is characterized in that: all sides of described support and end cap are laid with respectively the radiating ribs of some mutual correspondences, fan housing opening overlaps mutually with the radiating ribs of support week side, it between the end face of fan housing and sidewall, is streamlined arc transition structure, in fan housing, in machine shaft end, FC bidirectional fan is installed, this fan comprises the two-way flabellum of FC and tubaeform axle sleeve, described flabellum and machine shaft center line are at same plane, and fan housing end face is laid with netted air vent.
2. wind path structure as claimed in claim 1, it is characterized in that: described tubaeform axle sleeve comprises axle sleeve part and the horn section that one connects, described flabellum comprises the base part being connected with axle sleeve part and the first hypotenuse part being connected with described horn section and divides the 3rd adjacent hypotenuse part and the second hypotenuse part adjacent with the first hypotenuse part with bottom side portion respectively, between described the second hypotenuse part and the 3rd hypotenuse part, is arc transition structure.
3. wind path structure as claimed in claim 2, is characterized in that: the angle of described horn section and the first hypotenuse part and machine shaft center line is 65-70 degree.
4. wind path structure as claimed in claim 2, is characterized in that: the angle of described the second hypotenuse part and machine shaft center line is 55-65 degree.
5. wind path structure as claimed in claim 3, is characterized in that: the angle of described the 3rd hypotenuse part and machine shaft center line is 35-45 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520946882.0U CN205248981U (en) | 2015-11-25 | 2015-11-25 | Outer wind path structure of high -efficient low noise three -phase asynchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520946882.0U CN205248981U (en) | 2015-11-25 | 2015-11-25 | Outer wind path structure of high -efficient low noise three -phase asynchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205248981U true CN205248981U (en) | 2016-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520946882.0U Active CN205248981U (en) | 2015-11-25 | 2015-11-25 | Outer wind path structure of high -efficient low noise three -phase asynchronous motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN205248981U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107359724A (en) * | 2017-08-14 | 2017-11-17 | 江苏川钿电气机械有限公司 | A kind of motor with heat sink |
-
2015
- 2015-11-25 CN CN201520946882.0U patent/CN205248981U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107359724A (en) * | 2017-08-14 | 2017-11-17 | 江苏川钿电气机械有限公司 | A kind of motor with heat sink |
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| GR01 | Patent grant |