CN202768481U - Centrifugal fan impeller - Google Patents
Centrifugal fan impeller Download PDFInfo
- Publication number
- CN202768481U CN202768481U CN 201220470473 CN201220470473U CN202768481U CN 202768481 U CN202768481 U CN 202768481U CN 201220470473 CN201220470473 CN 201220470473 CN 201220470473 U CN201220470473 U CN 201220470473U CN 202768481 U CN202768481 U CN 202768481U
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- wheel
- blade
- wheel disc
- blower fan
- centrifugal blower
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Abstract
The utility model relates to a centrifugal fan impeller which comprises a wheel disk, a wheel cover and blades which are assembled on the wheel disk and the wheel cover in a match mode. The front end of each blade is of a dolphin-shaped streamline structure, the middle section of each blade is of a wing-shaped structure, the middle rear section of each blade is in a parabola shape, and the tail portion is of a sawtooth-shaped structure. Compared with a traditional centrifugal fan impeller, the centrifugal fan impeller is simple in structure, capable of achieving required air amount and pressure at low rotation speed, low in energy consumption, low in noise, low in cost, high in using efficiency and good in effect.
Description
Technical field
The utility model relates to a kind of draught fan impeller, relates in particular to a kind of centrifugal blower fan blade wheel.
Background technique
Blower fan is the mechanical energy that relies on input, improves supply gas the side by side machinery of body of gas pressure, and it is a kind of driven fluid machinery, and by the direction of gas flow, blower fan roughly can be divided into axial-flow blower and centrifugal blower.Centrifugal blower is the principle that is converted to potential energy according to kinetic energy, utilizes the impeller of High Rotation Speed that gas is accelerated, and then slows down, changes the flow direction, makes kinetic energy convert potential energy to, i.e. pressure.Therefore, the quality of centrifugal blower fan blade wheel design directly has influence on air force and the using effect of whole blower fan.
Given this, in Chinese patent 201020114763.6, mention a kind of impeller of centrifugal blower, comprise the front end-plate, end plate and the blade that all adopt the magnesium alloy preparation, front end-plate and end plate be arranged in parallel, front end-plate offers intake grill, end plate is provided with the joint that is connected with the drive motor output shaft, blade is clockwise or is rotated counterclockwise and is fixedly installed between front end-plate and the end plate, form air-flow path between adjacent two blades, air-flow path is communicated with intake grill, end plate before and after blade is riveting in; Although this model utility is lightweight, sound construction, the air-out effect of blade is bad, and the blade afterbody is linearly, and in the using process, the noise ratio of whole blower fan is larger.
In another Chinese patent 200780008067.8, mention a kind of centrifugal blower fan blade wheel, blade is in the shape of axial torsion and form wing with the complexity of fillet, blade is stepped outstanding towards interior all sides of impeller, blade is formed with a plurality of trailing edge projections of waveform shape towards the outer circumferential side week of impeller side.Although this blade has the projection of waveform shape also can reduce noise, its blade wheel structure is too complicated, the assembling trouble, simultaneously blade be shaped as the wing-shaped structure that reverses, blast is little, air-out effect is bad, energy consumption is high.
In sum, be necessary prior art is further improved.
Summary of the invention
The utility model is in order to solve existing centrifugal blower fan blade wheel complex structure, cost is high, air output and pressure are less than normal, the problem that energy consumption height and noise are large and propose a kind of simple in structure, firm, and in slow-speed of revolution situation, can obtain air quantity, the pressure of needs, cost is low, the centrifugal blower fan blade wheel that noise and energy consumption are little.
The utility model is achieved through the following technical solutions:
Above-mentioned a kind of centrifugal blower fan blade wheel comprises that wheel disc, wheel cap and coupling are installed in the blade of described wheel disc and wheel cap, and the front end of described blade is the streamlined structure of globefish shape, and the stage casing is wing-shaped structure, and the posterior segment is the parabola shape, afterbody indention structure.
Described centrifugal blower fan blade wheel, wherein: described blade integral is the housing shape structure of hollow out, the both sides hollow out that namely is connected with wheel cap with described wheel disc; The side that described blade is connected with described wheel disc is linearly, and a side that is connected with described wheel cap is protruding laterally gradually to described front end from described stage casing.
Described centrifugal blower fan blade wheel, wherein: described wheel disc and wheel cap also are provided be used to the fixed hole of installing described blade, and described wheel disc middle part also is provided with for the coupling shaft that connects the drive motor rotating shaft.
Described centrifugal blower fan blade wheel, wherein: described blade is provided with the fixing pin that is complementary with described fixed hole with the both sides that described wheel disc is connected with wheel cap.
Described centrifugal blower fan blade wheel, wherein: described blade pass is crossed described fixing pin coupling and is inserted in the fixed hole of described wheel disc and wheel cap, and wholely is connected and fixed with the mode that presses and described wheel disc and wheel cap.
Described centrifugal blower fan blade wheel, wherein: described wheel disc and described wheel cap are set in parallel, and described wheel disc is body structure in the form of a ring, and described wheel cap is ringwise and interior all side direction outer lug.
Described centrifugal blower fan blade wheel, wherein: the outward-dipping corresponding angle of described blade integral, and centered by the center of circle of described wheel disc, around the circumference that is distributed in opposite directions described wheel disc and wheel cap.
Beneficial effect:
The utility model centrifugal blower fan blade wheel is simple in structure, the blade front end utilizes bionics principle to adopt the globefish shape streamlined to reduce gas-flow resistance, it is wing to obtain large pressure that the stage casing is, the posterior segment is a parabola shape to accelerate the flow shedding blade, but afterbody adopts bionics principle to be designed to the zigzag fashion noise reducing, wherein, the both sides of blade are provided with fixing pin, can make things convenient for, be installed in wheel disc efficiently and wheel covers, wholely simultaneously be connected and fixed with the mode that presses and wheel disc and wheel cap, structure is more seen firmly, reliably, blade is centered by the lower plate center of circle, around being distributed in opposite directions, the outward-dipping corresponding angle of blade is to increase flow outlet pressure, relatively traditional blade, this structural entity is the housing shape of hollow out, structural rigidity is strong, and material thickness is little, and is lightweight, cost is also low, under the slow-speed of revolution, can obtain air quantity and the pressure of needs, reduce energy consumption of electrical machinery, improve using effect and the efficient of impeller.
Description of drawings
Fig. 1 is the overall structure schematic representation of the utility model centrifugal blower fan blade wheel;
Fig. 2 is the plan view of the utility model centrifugal blower fan blade wheel;
Fig. 3 is the relative artwork with wheel disc of the blade of the utility model centrifugal blower fan blade wheel;
Fig. 4 is the plan view of the wheel disc of the utility model centrifugal blower fan blade wheel;
Fig. 5 is the plan view of the wheel cap of the utility model centrifugal blower fan blade wheel
Fig. 6 is the overall structure schematic representation of the utility model centrifugal blower fan blade wheel blade;
Fig. 7 is the plan view of the utility model centrifugal blower fan blade wheel blade;
Fig. 8 is the rear view of the utility model centrifugal blower fan blade wheel blade;
Fig. 9 is the structural representation of the utility model embodiment 2 centrifugal blower fan blade wheel;
Figure 10 is the plan view of the utility model embodiment 2 centrifugal blower fan blade wheel.
Embodiment
Shown in Fig. 1 to 10, the utility model centrifugal blower fan blade wheel is the internal rotor centrifugal impeller, comprises wheel disc 1, wheel cap 2 and blade 3.
The middle part of wheel disc 1 is equiped with coupling shaft 12, is used for connecting the drive motor rotating shaft.
The both sides that blade 3 is connected with wheel disc 1 and wheel cap 2 also are provided with fixing pin 35, fixing pin 35 is complementary with the first fixed hole 11 of wheel disc 1 and the second fixed hole 21 of wheel cap 2, one side of blade 3 is inserted in the first fixed hole 11 of wheel disc 1 by fixing pin 35 couplings, the opposite side of blade 3 inserts in the second fixed hole 21 of wheel cap 2 by fixing pin 35 couplings, then whole mode and wheel disc 1 to press, wheel cap 2 is connected and fixed, wherein, blade 3 is centered by the center of circle of wheel disc 1, around being distributed in opposite directions the circumference of wheel disc 1 with wheel cap 2, blade 3 whole outward-dipping corresponding angles are to increase flow outlet pressure.
Shown in Fig. 9-10, wheel disc 1 structure of the present utility model is not limited to the structure among the embodiment 1, can be designed to the external rotor centrifugal impeller, be that wheel disc 1 middle part is provided with manhole 13, manhole 13 edges evenly are provided with pilot hole 14, and wheel disc 1 is by manhole 13 and pilot hole 14 and drive motor rotating shaft assembly connection.
Identical among wheel cap 2 and blade 3 structures and the embodiment 1.
The utility model has increased structural rigidity, has reduced material thickness, has saved material, and has increased centrifugal impeller flow outlet pressure, has reduced noise, compares traditional centrifugal impeller and can obtain the air quantity and the pressure that need in the slow-speed of revolution, has reduced energy consumption of electrical machinery.
Claims (7)
1. centrifugal blower fan blade wheel, comprise that wheel disc, wheel cap and coupling are installed in the blade of described wheel disc and wheel cap, is characterized in that: the front end of described blade is the streamlined structure of globefish shape, and the stage casing is wing-shaped structure, and the posterior segment is the parabola shape, afterbody indention structure.
2. centrifugal blower fan blade wheel as claimed in claim 1, it is characterized in that: described blade integral is the housing shape structure of hollow out, the both sides hollow out that namely is connected with wheel cap with described wheel disc;
The side that described blade is connected with described wheel disc is linearly, and a side that is connected with described wheel cap is protruding laterally gradually to described front end from described stage casing.
3. centrifugal blower fan blade wheel as claimed in claim 1 or 2, it is characterized in that: described wheel disc and wheel cap also are provided be used to the fixed hole of installing described blade, and described wheel disc middle part also is provided with for the coupling shaft that connects the drive motor rotating shaft.
4. centrifugal blower fan blade wheel as claimed in claim 3, it is characterized in that: described blade is provided with the fixing pin that is complementary with described fixed hole with the both sides that described wheel disc is connected with wheel cap.
5. centrifugal blower fan blade wheel as claimed in claim 4 is characterized in that: described blade pass is crossed described fixing pin coupling and is inserted in the fixed hole of described wheel disc and wheel cap, and wholely is connected and fixed with the mode that presses and described wheel disc and wheel cap.
6. centrifugal blower fan blade wheel as claimed in claim 5, it is characterized in that: described wheel disc and described wheel cap are set in parallel, and described wheel disc is body structure in the form of a ring, and described wheel cap is ringwise and interior all side direction outer lug.
7. centrifugal blower fan blade wheel as claimed in claim 6 is characterized in that: the outward-dipping corresponding angle of described blade integral, and centered by the center of circle of described wheel disc, around the circumference that is distributed in opposite directions described wheel disc and wheel cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220470473 CN202768481U (en) | 2012-09-17 | 2012-09-17 | Centrifugal fan impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220470473 CN202768481U (en) | 2012-09-17 | 2012-09-17 | Centrifugal fan impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202768481U true CN202768481U (en) | 2013-03-06 |
Family
ID=47775061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220470473 Expired - Fee Related CN202768481U (en) | 2012-09-17 | 2012-09-17 | Centrifugal fan impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202768481U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033420A (en) * | 2014-05-30 | 2014-09-10 | 苏州市金翔钛设备有限公司 | Centrifugal fan impeller |
| CN104454637A (en) * | 2014-11-13 | 2015-03-25 | 中国北车集团大连机车研究所有限公司 | Low-noise centrifugal fan impeller for high-speed electric multiple unit cooling system |
| CN108131324A (en) * | 2018-01-15 | 2018-06-08 | 汕头大学 | A kind of small-sized multi-wing centrifugal exhaust fan of highly effective low noise and impeller |
| CN109281866A (en) * | 2018-12-07 | 2019-01-29 | 泰州市罡阳喷灌机有限公司 | The bionic blade of liquid-ring type self priming pump |
| CN110685942A (en) * | 2019-11-15 | 2020-01-14 | 广东恒利通风机有限公司 | Cabinet type high-efficiency centrifugal fan |
-
2012
- 2012-09-17 CN CN 201220470473 patent/CN202768481U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033420A (en) * | 2014-05-30 | 2014-09-10 | 苏州市金翔钛设备有限公司 | Centrifugal fan impeller |
| CN104454637A (en) * | 2014-11-13 | 2015-03-25 | 中国北车集团大连机车研究所有限公司 | Low-noise centrifugal fan impeller for high-speed electric multiple unit cooling system |
| CN108131324A (en) * | 2018-01-15 | 2018-06-08 | 汕头大学 | A kind of small-sized multi-wing centrifugal exhaust fan of highly effective low noise and impeller |
| CN109281866A (en) * | 2018-12-07 | 2019-01-29 | 泰州市罡阳喷灌机有限公司 | The bionic blade of liquid-ring type self priming pump |
| CN109281866B (en) * | 2018-12-07 | 2023-09-15 | 泰州市罡阳喷灌机有限公司 | Bionic blade of water ring type self-priming pump |
| CN110685942A (en) * | 2019-11-15 | 2020-01-14 | 广东恒利通风机有限公司 | Cabinet type high-efficiency centrifugal fan |
| CN110685942B (en) * | 2019-11-15 | 2023-03-17 | 广东恒利通风机有限公司 | Cabinet type high-efficiency centrifugal fan |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130306 Termination date: 20180917 |