CN204186626U - Low windage high efficiency motor fan - Google Patents
Low windage high efficiency motor fan Download PDFInfo
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- CN204186626U CN204186626U CN201420611675.5U CN201420611675U CN204186626U CN 204186626 U CN204186626 U CN 204186626U CN 201420611675 U CN201420611675 U CN 201420611675U CN 204186626 U CN204186626 U CN 204186626U
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- chassis
- flabellum
- high efficiency
- fan
- outer circumferential
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Abstract
A kind of low windage high efficiency motor fan, relate to technical field, what solve is the inefficient technical problem of existing fan work.This fan comprises chassis, and multi-disc flabellum, it is characterized in that: described chassis is a right thin left thick truncated cone disk body, and first concave arc shape is bending from right to left for the outer circumferential face on chassis, then extends left and expand gradually, then convex bends from right to left; Each flabellum is separately fixed on the outer circumferential face on chassis, and lays around the central axis axisymmetric interval on chassis.The fan that the utility model provides, is applicable to being arranged on machine shaft and uses.
Description
Technical field
The utility model relates to motor technology, particularly relates to a kind of technology of low windage high efficiency motor fan.
Background technique
Can heat be produced during machine operation, will burn very soon if not in time heat is distributed motor.The effect of motor ventilating fan is to produce enough pressure, send required gas by motor, thus take away heat to drive, and reduces the temperature rise of motor.
Motor ventilating fan is formed primarily of chassis and the multi-disc flabellum be fixed on chassis, conventional motors fan all adopts cylindrical chassis, this chassis has the large defect of windage, during work, ventilation loss is large, efficiency is low, peak efficiency only about 0.2, and because blade is larger, larger sound of the wind can be produced, thus affect efficiency and the noise of motor.The proportion of ventilation loss shared by the total losses of motor is larger, the rotating speed of motor is higher, capacity is larger, shared proportional numbers is larger, and such as, when Y-series 2 pole motor capacity is less, ventilation loss accounts for about 10% of total losses, generally all more than 30% when capacity is larger.
Model utility content
For the defect existed in above-mentioned prior art, technical problem to be solved in the utility model is to provide that a kind of windage is low, and ventilation loss is little, the low windage high efficiency motor fan that working efficiency is high.
In order to solve the problems of the technologies described above, one provided by the utility model low windage high efficiency motor fan, comprise chassis, and multi-disc flabellum, it is characterized in that: described chassis is a right thin left thick truncated cone disk body, first concave arc shape is bending from right to left for the outer circumferential face on chassis, then extends left and expand gradually, then convex bends from right to left;
Each flabellum is separately fixed on the outer circumferential face on chassis, and lays around the central axis axisymmetric interval on chassis.
Further, the right-hand member of every sheet flabellum is all in right-narrow and left-wide isosceles trapezoid, and the left margin of every sheet flabellum is all tilted to the right along the radially outward on chassis.
The utility model provides, the concave arc shape curved part of chassis outer circumferential face right part can coincide the relative velocity direction of flabellum and the Inlet cone angle of flabellum, make gas can enter flabellum working zone without impact, and the pressure loss that gas can be made to enter flabellum reaches minimum, the frictional loss and Localized wear that produce when gas flows between flabellum can also be reduced, thus can efficient result of ventilating heat dissipation be formed, improve the efficiency of motor.
Accompanying drawing explanation
Fig. 1 is the side view of the low windage high efficiency motor fan of the utility model embodiment;
Fig. 2 is the plan view of the low windage high efficiency motor fan of the utility model embodiment.
Embodiment
Illustrate below in conjunction with accompanying drawing and be described in further detail embodiment of the present utility model, but the present embodiment is not limited to the utility model, every employing analog structure of the present utility model and similar change thereof, all should list protection domain of the present utility model in.
As shown in Figure 1-2, the one that the utility model embodiment provides low windage high efficiency motor fan, comprise chassis 1, and multi-disc flabellum 2, it is characterized in that: described chassis 1 is a right thin left thick truncated cone disk body, first concave arc shape is bending from right to left for the outer circumferential face on chassis 1, then extends left and expand gradually, then convex bends from right to left;
Each flabellum 2 is separately fixed on the outer circumferential face on chassis 1, and lays around the central axis axisymmetric interval on chassis 1, and the right-hand member of every sheet flabellum 2 is all in right-narrow and left-wide isosceles trapezoid, and the left margin of every sheet flabellum 2 is all tilted to the right along the radially outward on chassis 1.
The utility model embodiment is arranged on machine shaft and uses, the casing two ends of motor are respectively provided with an end cap, the two ends of machine shaft respectively connect the forward and backward end cap of casing through a bearing, and machine shaft respectively exposes one section of shaft extension at forward and backward end cap, rear shaft extension is used for mounted motor fan, motor is provided with the fan housing that cover cap lives motor ventilating fan;
When fan is with machine shaft High Rotation Speed, gas between flabellum outwards flies ease by the effect of centrifugal force, and at the outer rim outlet port mineralization pressure of flabellum, new gas constantly supplements into from flabellum inner radius again, form gas constantly to flow, air-flow flows through along motor case surface, take away the heat of motor case, the concave arc shape curved part of the outer circumferential face on chassis can coincide the relative velocity direction of flabellum and the Inlet cone angle of flabellum, make gas can enter flabellum working zone without impact, and the pressure loss that gas can be made to enter flabellum reaches minimum, the frictional loss and Localized wear that produce when gas flows between flabellum can also be reduced, thus can efficient result of ventilating heat dissipation be formed, improve the efficiency of motor.
Claims (2)
1. a low windage high efficiency motor fan, comprises chassis, and multi-disc flabellum, it is characterized in that: described chassis is a right thin left thick truncated cone disk body, first concave arc shape is bending from right to left for the outer circumferential face on chassis, then extends left and expand gradually, then convex bends from right to left;
Each flabellum is separately fixed on the outer circumferential face on chassis, and lays around the central axis axisymmetric interval on chassis.
2. low windage high efficiency motor fan according to claim 1, is characterized in that: the right-hand member of every sheet flabellum is all in right-narrow and left-wide isosceles trapezoid, and the left margin of every sheet flabellum is all tilted to the right along the radially outward on chassis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420611675.5U CN204186626U (en) | 2014-10-22 | 2014-10-22 | Low windage high efficiency motor fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420611675.5U CN204186626U (en) | 2014-10-22 | 2014-10-22 | Low windage high efficiency motor fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204186626U true CN204186626U (en) | 2015-03-04 |
Family
ID=52618635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420611675.5U Active CN204186626U (en) | 2014-10-22 | 2014-10-22 | Low windage high efficiency motor fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204186626U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150454A (en) * | 2018-02-10 | 2018-06-12 | 中山市科艺电机有限公司 | A kind of radiator fan for electrical motor of sewing machine |
-
2014
- 2014-10-22 CN CN201420611675.5U patent/CN204186626U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150454A (en) * | 2018-02-10 | 2018-06-12 | 中山市科艺电机有限公司 | A kind of radiator fan for electrical motor of sewing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |