CN103174673B - Plastics blast device on air-conditioning - Google Patents
Plastics blast device on air-conditioning Download PDFInfo
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- CN103174673B CN103174673B CN201310113077.5A CN201310113077A CN103174673B CN 103174673 B CN103174673 B CN 103174673B CN 201310113077 A CN201310113077 A CN 201310113077A CN 103174673 B CN103174673 B CN 103174673B
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Abstract
The present invention relates to field of ventilation equipment.Plastics blast device on air-conditioning, comprises ring leaf base plate, wheel hub, baffle liner and more blades, and ring leaf base plate external diameter is between 420mm-480mm, and the internal diameter size of baffle liner is the 75%-85% of ring leaf base plate outside dimension; Blade air intake to outlet air end is distorted shape, and upper air inlet angle is different with lower air intake angle angle and be all not more than 10 °; Upper air-out angle and lower air-out angle angle are different and all between 20 °-40 °; Blade top is made up of the connection area be connected as a single entity and disconnected district, and the air-admitting surface between arbitrary neighborhood blade is the 66%-75% of corresponding exhaust outlet area.The advantage of this plastics blast device on air-conditioning is novel structure, and air quantity is large and noise is low.
Description
Technical field
The present invention relates to field of ventilation equipment, particularly relate to a kind of plastics blast device on air-conditioning.
Background technique
Plastics blast device on air-conditioning is product conventional in field of ventilation equipment, plastics blast device on air-conditioning comprises ring leaf base plate, wheel hub, blade and baffle liner, blade is fixed between ring leaf base plate and baffle liner, be connected as a single entity inside wheel hub and ring leaf base plate, wheel hub is concentric with ring leaf base plate, the center of hub top arranges axle sleeve, and during use, motor shaft drives fan blade to rotate through axle sleeve upper shaft hole.The usability of the plastics blast device on air-conditioning is mainly reflected in air force and noise control aspect, air force and noise height are mutual, the large noise of general air quantity is relatively just high, the little noise of air quantity is naturally low, the parameter that the usability of the plastics blast device on air-conditioning relates to is a lot, the shape of such as leaf base plate, wheel hub, blade and baffle liner, size and Placement etc.The very rational plastics blast device on air-conditioning of air force and noise control is in the market few.
Summary of the invention
The object of the invention is the kind in order to enrich the plastics blast device on air-conditioning, disclosing a kind of novel structure, the large and plastics blast device on air-conditioning that noise is low of air quantity.
In order to realize above-mentioned object, present invention employs following technological scheme:
Plastics blast device on air-conditioning, comprise ring leaf base plate, wheel hub, baffle liner and more blades, more blades is fixed between ring leaf base plate and baffle liner, be connected as a single entity inside wheel hub and ring leaf base plate, ring leaf base plate external diameter is between 420mm-480mm, and the internal diameter size of baffle liner is the 75%-85% of ring leaf base plate outside dimension; Blade air intake to outlet air end is distorted shape, and the air intake angle of blade is divided into the upper air inlet angle near baffle liner and the lower air intake angle near ring leaf base plate, and upper air inlet angle is different with lower air intake angle angle and be all not more than 10 °; The air-out angle of blade is divided into the upper air-out angle near baffle liner and the lower air-out angle near ring leaf base plate, and upper air-out angle is different and all between 20 °-40 ° with lower air-out angle angle; Blade top is made up of the connection area be connected as a single entity and disconnected district, and blade is fixed by connection area and baffle liner, and disconnected district is in the air intake direction inside blade, and the air-admitting surface between arbitrary neighborhood blade is the 66%-75% of corresponding exhaust outlet area.
As preferably, upper air-out angle angle is less than lower air-out angle angle, and the difference between upper air-out angle angle and lower air-out angle angle is between 5 °-15 °; Air-admitting surface between arbitrary neighborhood blade is the 73%-73.5% of corresponding exhaust outlet area, noise rise unconspicuous situation add down to reducing 2% air quantity.
As preferably, upper air inlet angle is air intake surface top end with the angle of the contrary tangent direction of fan blade sense of rotation and blade air intake surface top circular arc tangential line, and lower air intake angle is air intake surface bottom end with the angle of the contrary tangent direction of fan blade sense of rotation and blade air intake surface bottom circular arc tangential line; Upper air-out angle is outlet air surface top end with the angle of the contrary tangent direction of fan blade sense of rotation and blade outlet air surface top circular arc tangential line, and lower air-out angle is outlet air surface bottom end with the angle of the contrary tangent direction of fan blade sense of rotation and blade outlet air surface bottom circular arc tangential line.
As preferably, upper air inlet angle is 3 °, and lower air intake angle is 4.3 °, and upper air-out angle is 23 °, and lower air-out angle is 34 °, and ring leaf base plate external diameter is 452.4mm, and baffle liner internal diameter is 367.8mm, and air quantity is maximum and noise is minimum.
Have employed the plastics blast device on air-conditioning of above-mentioned technological scheme, blade air intake to outlet air end is distorted shape, upper air inlet angle is different with lower air intake angle angle and be all not more than 10 °, upper air-out angle and lower air-out angle angle are different and all between 20 °-40 °, the air-out of blade is linearly changed along blade height direction, effectively can weaken noise energy superposition, reduce noise.Disconnected district is in the air intake direction inside blade, adds incoming air area under ensure that the prerequisite of blade and baffle liner join strength, and namely air quantity increases.Ring leaf base plate external diameter is between 420mm-480mm, the internal diameter size of baffle liner is the 75%-85% of ring leaf base plate outside dimension, air-admitting surface between arbitrary neighborhood blade is the 66%-75% of corresponding exhaust outlet area, obtain good static pressure, air intake efficiency at least improves 2%.The advantage of this plastics blast device on air-conditioning is novel structure, and air quantity is large and noise is low.
Accompanying drawing explanation
Fig. 1: the plastics blast device structural representation on air-conditioning of the embodiment of the present invention.
Fig. 2: the plastics blast device schematic diagram one on air-conditioning not installing baffle liner in the embodiment of the present invention.
Fig. 3: the plastics blast device schematic diagram two on air-conditioning not installing baffle liner in the embodiment of the present invention.
Embodiment
Below in conjunction with Fig. 1, Fig. 2 and Fig. 3, the embodiment of invention is made a detailed explanation.
The plastics blast device on air-conditioning as shown in Figure 1, Figure 2 and Figure 3, mainly comprise the ring leaf base plate 1, wheel hub 2, baffle liner 4 and the more blades 3 that are all made of plastics, more blades 3 is fixed between ring leaf base plate 1 and baffle liner 4, be connected as a single entity inside wheel hub 2 and ring leaf base plate 1, the axle sleeve that the center at wheel hub 2 top is connected as a single entity with it, axle sleeve has the axis hole for connecting motor shaft, wheel hub 2 is provided with radiation hole.Ring leaf base plate 1 external diameter is between 420mm-480mm, and the internal diameter size of baffle liner 4 is 75%-85% of ring leaf base plate 1 outside dimension.
Blade 3 air intake is distorted shape to outlet air end, the air intake angle of blade 3 is divided into the upper air inlet angle a1 near the baffle liner 4 and lower air intake angle a2 near ring leaf base plate 1, upper air inlet angle a1 is different with lower air intake angle a2 angle and be all not more than 10 °, upper air inlet angle a1 is air intake surface top end with the angle of the contrary tangent direction of fan blade sense of rotation and blade air intake surface top circular arc tangential line, and lower air intake angle a2 is air intake surface bottom end with the angle of the contrary tangent direction of fan blade sense of rotation and blade air intake surface bottom circular arc tangential line.The air-out angle of blade 3 is divided into the upper air-out angle b1 near the baffle liner 4 and lower air-out angle b2 near ring leaf base plate 1, upper air-out angle b1 and lower air-out angle b2 angle are different and all between 20 °-40 °, upper air-out angle b1 angle is less than lower air-out angle b2 angle, and the difference between upper air-out angle b1 angle and lower air-out angle b2 angle is between 5 °-15 °, upper air-out angle b1 is outlet air surface top end with the angle of the contrary tangent direction of fan blade sense of rotation and blade outlet air surface top circular arc tangential line, lower air-out angle b2 is outlet air surface bottom end with the angle of the contrary tangent direction of fan blade sense of rotation and blade outlet air surface bottom circular arc tangential line.Upper air inlet angle a1 is different with angle, lower air intake angle a2 degree, and upper air-out angle b1 is different with lower air-out angle b2 angle, and the air-out of blade 3 is linearly changed along blade height direction, effectively can weaken noise energy superposition, at least reduce noise 2dB.Blade 3 is generally 5,7,8 or 9.
Blade 3 top is made up of the connection area 32 be connected as a single entity and disconnected district 33, connection area 32 and the baffle liner 4 of blade are fixed by ultrasonic welding, disconnected district 33 is in the air intake direction inside blade 3, connection area 32 is in the outside in disconnected district 33, the intensity of the connection of blade 3 and baffle liner 4 can be ensured, lifting air quantity that again can be suitable.Air-admitting surface C between arbitrary neighborhood blade 3 is the 70%-75% of corresponding exhaust outlet area D, and namely above-below direction is between ring leaf base plate 1 and baffle liner 4, left and right directions is in air-admitting surface C between adjacent blades 3 and exhaust outlet area D.
As the direction of arrow A indication in Fig. 2 and Fig. 3 rotates when plastics blast device on air-conditioning uses, air-admitting surface C between arbitrary neighborhood blade 3 is the 73%-73.5% of corresponding exhaust outlet area D, best static pressure can be obtained, upper air inlet angle is 3 °, and lower air intake angle is 4.3 °, and upper air-out angle is 23 °, lower air-out angle is 34 °, ring leaf base plate external diameter is 452.4mm, and baffle liner internal diameter is 367.8mm, and air quantity is maximum and noise is minimum.Its air quantity of plastics blast device on air-conditioning that Dimensions is similar be in the market generally 2100 cubic metres per hour, noise is generally 47 decibels, adopt its air quantity of plastics blast device on air-conditioning of above-mentioned parameter be 2200 cubic metres per hour, noise is 43 decibels, and namely air quantity is large and noise is low.
Claims (3)
1. the plastics blast device on air-conditioning, comprise ring leaf base plate, wheel hub, baffle liner and more blades, more blades is fixed between ring leaf base plate and baffle liner, be connected as a single entity inside wheel hub and ring leaf base plate, it is characterized in that ring leaf base plate external diameter is between 420mm-480mm, the internal diameter size of baffle liner is the 75%-85% of ring leaf base plate outside dimension; Blade air intake to outlet air end is distorted shape, and the air intake angle of blade is divided into the upper air inlet angle near baffle liner and the lower air intake angle near ring leaf base plate, and upper air inlet angle is different with lower air intake angle angle and be all not more than 10 °; The air-out angle of blade is divided into the upper air-out angle near baffle liner and the lower air-out angle near ring leaf base plate, and upper air-out angle is different and all between 20 °-40 ° with lower air-out angle angle; Blade top is made up of the connection area be connected as a single entity and disconnected district, and blade is fixed by connection area and baffle liner, and disconnected district is in the air intake direction inside blade, and the air-admitting surface between arbitrary neighborhood blade is the 66%-75% of corresponding exhaust outlet area; Upper air-out angle angle is less than lower air-out angle angle.
2. the plastics blast device on air-conditioning according to claim 1, it is characterized in that upper air inlet angle is air intake surface top end with the angle of the contrary tangent direction of fan blade sense of rotation and blade air intake surface top circular arc tangential line, lower air intake angle is air intake surface bottom end with the angle of the contrary tangent direction of fan blade sense of rotation and blade air intake surface bottom circular arc tangential line; Upper air-out angle is outlet air surface top end with the angle of the contrary tangent direction of fan blade sense of rotation and blade outlet air surface top circular arc tangential line, and lower air-out angle is outlet air surface bottom end with the angle of the contrary tangent direction of fan blade sense of rotation and blade outlet air surface bottom circular arc tangential line.
3. the plastics blast device on air-conditioning according to claim 1, it is characterized in that upper air inlet angle is 3 °, lower air intake angle is 4.3 °, upper air-out angle is 23 °, lower air-out angle is 34 °, and ring leaf base plate external diameter is 452.4mm, and baffle liner internal diameter is 367.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310113077.5A CN103174673B (en) | 2013-04-02 | 2013-04-02 | Plastics blast device on air-conditioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310113077.5A CN103174673B (en) | 2013-04-02 | 2013-04-02 | Plastics blast device on air-conditioning |
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| Publication Number | Publication Date |
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| CN103174673A CN103174673A (en) | 2013-06-26 |
| CN103174673B true CN103174673B (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310113077.5A Active CN103174673B (en) | 2013-04-02 | 2013-04-02 | Plastics blast device on air-conditioning |
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| CN (1) | CN103174673B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174672B (en) * | 2013-04-02 | 2016-01-13 | 宁波朗迪叶轮机械有限公司 | BI oblique flow wind pushing impeller |
| CN118188575A (en) * | 2024-05-16 | 2024-06-14 | 广东宏伙控股集团有限公司 | Centrifugal wind wheel and centrifugal fan |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2158003Y (en) * | 1992-12-08 | 1994-03-02 | 河北工学院 | Efficiency energy-saving fan specially for warming machine use |
| CN1802512A (en) * | 2003-11-27 | 2006-07-12 | 大金工业株式会社 | Blade wheel for centrifugal blower and centerifugal blower with the same |
| EP2264320A1 (en) * | 2008-04-18 | 2010-12-22 | Mitsubishi Electric Corporation | Turbofan and air conditioner |
| CN201747672U (en) * | 2010-06-21 | 2011-02-16 | 珠海格力电器股份有限公司 | Centrifugal wind wheel |
| CN203175961U (en) * | 2013-04-02 | 2013-09-04 | 宁波朗迪叶轮机械有限公司 | Plastic wind sending device for air conditioner |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007170331A (en) * | 2005-12-26 | 2007-07-05 | Daikin Ind Ltd | Turbofan and indoor unit of air conditioner using it |
| JP2010133254A (en) * | 2008-12-02 | 2010-06-17 | Daikin Ind Ltd | Centrifugal blower, and air conditioner provided with the same |
-
2013
- 2013-04-02 CN CN201310113077.5A patent/CN103174673B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2158003Y (en) * | 1992-12-08 | 1994-03-02 | 河北工学院 | Efficiency energy-saving fan specially for warming machine use |
| CN1802512A (en) * | 2003-11-27 | 2006-07-12 | 大金工业株式会社 | Blade wheel for centrifugal blower and centerifugal blower with the same |
| EP2264320A1 (en) * | 2008-04-18 | 2010-12-22 | Mitsubishi Electric Corporation | Turbofan and air conditioner |
| CN201747672U (en) * | 2010-06-21 | 2011-02-16 | 珠海格力电器股份有限公司 | Centrifugal wind wheel |
| CN203175961U (en) * | 2013-04-02 | 2013-09-04 | 宁波朗迪叶轮机械有限公司 | Plastic wind sending device for air conditioner |
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| CN103174673A (en) | 2013-06-26 |
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