CN103925242A - Double inlet air centrifugal wind wheel and air conditioner with same - Google Patents
Double inlet air centrifugal wind wheel and air conditioner with same Download PDFInfo
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- CN103925242A CN103925242A CN201310021886.3A CN201310021886A CN103925242A CN 103925242 A CN103925242 A CN 103925242A CN 201310021886 A CN201310021886 A CN 201310021886A CN 103925242 A CN103925242 A CN 103925242A
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- rotating shaft
- wind wheel
- centrifugal wind
- shaft plate
- air intake
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Abstract
The invention provides a double inlet air centrifugal wind wheel. The double inlet air centrifugal wind wheel comprises a spindle plate, a first blade group, and a second blade group, wherein the first blade group and the second blade group are arranged on two sides of the spindle plate respectively, one end of the first blade group and one end of the second blade group are connected with an outer circle edge of the spindle plate respectively, the other end of the first blade group and the other end of the second blade group form two circular air inlets respectively, the middle of the spindle plate is thicker than the outer circle edge, and the portion from the middle to the outer circle edge is a smooth circular arc transition surface. According to the double inlet air centrifugal wind wheel, the middle of the spindle plate is thicker than the outer circle edge, and the portion from the middle to the outer circle edge is a smooth circular arc transition surface, so that when a gas flows from the air inlets into the wind wheel, air flows can smoothly transit along the circular arc transition surface and flow out of the wind wheel, a convoluted eddy is not prone to be produced on the surface of the spindle plate, the use ratio of a fluid can be increased while noises are reduced, a relative air volume is increased, and overall efficiency is improved.
Description
Technical field
The present invention relates to field of air conditioning, especially, relate to a kind of pair of air intake centrifugal wind wheel and there is the air conditioner of this wind wheel.
Background technique
Centrifugal blower is to provide aerodynamical equipment, and along with the development of the every profession and trades such as air-conditioning, centrifugal blower uses more and more extensive, and Ventilating machine for air conditioner requires noise low, size is little, and this just has higher requirement to blower fan, and wherein using is two air intake centrifugal blower fans the most widely.The impeller of two air intake centrifugal blower fans is fixed together at rotating shaft plate and motor shaft in the middle of impeller by design, realize the transmission of power, during fan operation, vane rotary, air-flow enters the blade path of rotation, and under the effect of centrifugal force, gas is compressed and flow out along radial outward, so in the inner low pressure that forms of impeller, extraneous gas enters the inner low pressure area of impeller from impeller intake grill, and so circulation just has wind constantly from centrifugal blower outlet, to flow out.Because the rotating shaft plate in the middle of prior art impeller is slab construction, when gas enters impeller inside from outside, due to stopping of rotating shaft plate, after gas is blocked, back flow, so be easy to produce eddy current on rotating shaft plate surface, fan delivery is reduced, noise increases, and whole efficiency is on the low side.
Summary of the invention
The air conditioner that the object of the invention is to provide a kind of pair of air intake centrifugal wind wheel and has this wind wheel, to solve the technical problem that existing fan delivery is low, noise is large, whole efficiency is on the low side.
For achieving the above object, the invention provides a kind of pair of air intake centrifugal wind wheel, comprise rotating shaft plate and be arranged at respectively the first vane group and second vane group of rotating shaft plate both sides, one end of the first vane group and the second vane group is connected to the outer circumferential edge edge of rotating shaft plate, the other end forms respectively two circular intake grills, the thickness at described rotating shaft plate middle part is greater than the thickness on outer circumferential edge edge, and the middle part of described rotating shaft plate has level and smooth arc-shaped transitional surface between outer circumferential edge edge.
Further, the middle part of described rotating shaft plate is provided with rotary shaft hole, and the radius of curvature of the arc-shaped transitional surface from the outer diameter side of rotary shaft hole along the outer circumferential edge edge to rotating shaft plate increases gradually.
Further, described arc-shaped transitional surface comprises the small arc surface of multistage different curvature radius, is smooth connection between each small arc surface.
Further, from described rotating shaft plate middle part to outer circumferential edge edge, the radius of curvature of small arc surface increases gradually.
Further, described arc-shaped transitional surface comprises two sections of small arc surfaces; The radius of curvature of first paragraph small arc surface is R1; The radius of curvature of second segment small arc surface is R2; And 5*R1 < R2.
Further, the angle of the shaft axis of the tangent line of described first paragraph small arc surface and rotating shaft plate is α, and 30 ° of 0 ° of < α <.
Further, the angle of the radial line of the tangent line of described second segment small arc surface and rotating shaft plate is β, and 15 ° of 0 ° of < β <.
Further, the joint of described the first vane group and the second vane group and rotating shaft plate is provided with stiffening rib.
For achieving the above object, the present invention provides a kind of air conditioner in addition, and described air conditioner is equiped with the two air intake centrifugal wind wheels described in above-mentioned any one scheme.
The present invention has following beneficial effect:
The present invention is greater than the thickness on outer circumferential edge edge by the thickness at rotating shaft plate middle part is set, and outside round edge edge is level and smooth arc-shaped transitional surface from middle part, while making gas flow to wind wheel inside from intake grill, air flow energy is along arc-shaped transitional surface transition flow out wind wheel inside smoothly, be not easy to produce convolution eddy current on rotating shaft plate surface, when reducing noise, make the utilization ratio of fluid improve, air quantity increases relatively, has promoted overall efficiency.
Except object described above, feature and advantage, the present invention also has other object, feature and advantage.Below with reference to figure, the present invention is further detailed explanation.
Accompanying drawing explanation
The accompanying drawing that forms the application's a part is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is according to the plan view of of the present invention pair of air intake centrifugal wind wheel;
Fig. 2 is according to the left view of of the present invention pair of air intake centrifugal wind wheel;
Fig. 3 is the middle part sectional view according to of the present invention pair of air intake centrifugal wind wheel;
Fig. 4 is the structural representation of analysing and observe according to the middle part of of the present invention pair of air intake centrifugal wind wheel;
Fig. 5 is according to the schematic diagram of the arc-shaped transitional surface of of the present invention pair of air intake centrifugal wind wheel.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
Two air intake centrifugal wind wheels as shown in Figure 1, Figure 2, Figure 3 and Figure 4, this wind wheel comprises rotating shaft plate 30 and is arranged at respectively the first vane group 10 and second vane group 20 of rotating shaft plate 30 both sides, one end of the first vane group 10 and the second vane group 20 is connected to the outer circumferential edge edge of rotating shaft plate 30, the other end forms respectively two circular intake grills 40, the thickness at described rotating shaft plate 30 middle parts is greater than the thickness on outer circumferential edge edge, and the middle part of described rotating shaft plate has level and smooth arc-shaped transitional surface 31 between outer circumferential edge edge.By being set, the thickness at rotating shaft plate 30 middle parts is greater than the thickness on outer circumferential edge edge, and outside round edge edge is level and smooth arc-shaped transitional surface 31 from middle part, while making gas flow to wind wheel inside from intake grill, air flow energy is along arc-shaped transitional surface transition flow out wind wheel inside smoothly, be not easy to produce convolution eddy current on rotating shaft plate surface, when reducing noise, make the utilization ratio of fluid improve, air quantity increases relatively, has promoted overall efficiency.
The middle part of described rotating shaft plate 30 is provided with rotary shaft hole 32, the radius of curvature of the arc-shaped transitional surface from the outer diameter side of rotary shaft hole 32 along the outer circumferential edge edge to rotating shaft plate 30 increases gradually, like this dynamic (dynamical) principle of composite gas stream is set, better to the cushioning effect of gas flow.
Described arc-shaped transitional surface 31 comprises the small arc surface of multistage different curvature radius, is smooth connection between each small arc surface.From described rotating shaft plate middle part to outer circumferential edge edge, the radius of curvature of small arc surface increases gradually.
As shown in Figure 5, preferably, described arc-shaped transitional surface comprises two sections of small arc surfaces; The radius of curvature of first paragraph small arc surface is R1; The radius of curvature of second segment small arc surface is R2; And 5*R1 < R2.The angle of the shaft axis of the tangent line of described first paragraph small arc surface and rotating shaft plate is α, and 30 ° of 0 ° of < α <.The angle of the radial line of the tangent line of described second segment small arc surface and rotating shaft plate is β, and 15 ° of 0 ° of < β <.These data are all the optimum values drawing through long-term experiment, the centrifugal wind wheel of manufacturing according to described data, and the air quantity producing during its work is maximum, and noise is minimum, and performance is best.
The joint of described the first vane group and the second vane group and rotating shaft plate is provided with stiffening rib 11, and described stiffening rib 11 has increased the soundness of wind wheel, has improved overall performance.
The present invention also provides a kind of air conditioner in addition, and described air conditioner is equiped with the two air intake centrifugal wind wheels described in above-mentioned any one scheme.Due to the effect of centrifugal wind wheel, improved the overall performance of air conditioner.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. a two air intake centrifugal wind wheel, comprise rotating shaft plate and be arranged at respectively the first vane group and second vane group of rotating shaft plate both sides, one end of the first vane group and the second vane group is connected to the outer circumferential edge edge of rotating shaft plate, and the other end forms respectively two circular intake grills, it is characterized in that:
The thickness at described rotating shaft plate middle part is greater than the thickness on outer circumferential edge edge, and the middle part of described rotating shaft plate has level and smooth arc-shaped transitional surface between outer circumferential edge edge.
2. according to claim 1 pair of air intake centrifugal wind wheel, is characterized in that: the middle part of described rotating shaft plate is provided with rotary shaft hole, and the radius of curvature of the arc-shaped transitional surface from the outer diameter side of rotary shaft hole along the outer circumferential edge edge to rotating shaft plate increases gradually.
3. according to claim 1 pair of air intake centrifugal wind wheel, is characterized in that: described arc-shaped transitional surface comprises the small arc surface of multistage different curvature radius, is smooth connection between each small arc surface.
4. according to claim 3 pair of air intake centrifugal wind wheel, is characterized in that: from described rotating shaft plate middle part to outer circumferential edge edge, the radius of curvature of described small arc surface increases gradually.
5. according to claim 4 pair of air intake centrifugal wind wheel, is characterized in that: described arc-shaped transitional surface comprises two sections of small arc surfaces; The radius of curvature of first paragraph small arc surface is R1; The radius of curvature of second segment small arc surface is R2; And 5*R1 < R2.
6. according to claim 5 pair of air intake centrifugal wind wheel, is characterized in that: the angle of the shaft axis of the tangent line of described first paragraph small arc surface and rotating shaft plate is α, and 30 ° of 0 ° of < α <.
7. according to claim 5 pair of air intake centrifugal wind wheel, is characterized in that: the angle of the radial line of the tangent line of described second segment small arc surface and rotating shaft plate is β, and 15 ° of 0 ° of < β <.
8. according to the two air intake centrifugal wind wheels described in any one in claim 1 to 7, it is characterized in that: the joint of described the first vane group and the second vane group and rotating shaft plate is provided with stiffening rib.
9. an air conditioner, is characterized in that: be equiped with the two air intake centrifugal wind wheels described in any one in claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310021886.3A CN103925242A (en) | 2013-01-15 | 2013-01-15 | Double inlet air centrifugal wind wheel and air conditioner with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310021886.3A CN103925242A (en) | 2013-01-15 | 2013-01-15 | Double inlet air centrifugal wind wheel and air conditioner with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103925242A true CN103925242A (en) | 2014-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310021886.3A Pending CN103925242A (en) | 2013-01-15 | 2013-01-15 | Double inlet air centrifugal wind wheel and air conditioner with same |
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| Country | Link |
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| CN (1) | CN103925242A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114756101A (en) * | 2022-04-29 | 2022-07-15 | 浪潮(山东)计算机科技有限公司 | Expansion card heat dissipation module and case |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2375788Y (en) * | 1999-04-13 | 2000-04-26 | 新疆农业科学院农业机械化研究所 | Double-suction double-arc centrifugal fan |
| CN2438855Y (en) * | 2000-08-21 | 2001-07-11 | 黄群大 | Fan-coil wind wheel |
| CN2533303Y (en) * | 2001-10-25 | 2003-01-29 | 张福祥 | Bidirectional wind wheel for bathroom warmer |
| CN201407207Y (en) * | 2009-04-24 | 2010-02-17 | 广东美的电器股份有限公司 | Multi-blade centrifugal wind wheel |
| JP2010163871A (en) * | 2009-01-13 | 2010-07-29 | Panasonic Corp | Multiblade centrifugal blower |
| CN102330707A (en) * | 2011-09-30 | 2012-01-25 | 西安胜唐鼓风机有限公司 | Sintering centrifugal blower impeller |
| CN203067346U (en) * | 2013-01-15 | 2013-07-17 | 珠海格力电器股份有限公司 | Double-inlet centrifugal wind wheel and conditioner adopting same |
-
2013
- 2013-01-15 CN CN201310021886.3A patent/CN103925242A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2375788Y (en) * | 1999-04-13 | 2000-04-26 | 新疆农业科学院农业机械化研究所 | Double-suction double-arc centrifugal fan |
| CN2438855Y (en) * | 2000-08-21 | 2001-07-11 | 黄群大 | Fan-coil wind wheel |
| CN2533303Y (en) * | 2001-10-25 | 2003-01-29 | 张福祥 | Bidirectional wind wheel for bathroom warmer |
| JP2010163871A (en) * | 2009-01-13 | 2010-07-29 | Panasonic Corp | Multiblade centrifugal blower |
| CN201407207Y (en) * | 2009-04-24 | 2010-02-17 | 广东美的电器股份有限公司 | Multi-blade centrifugal wind wheel |
| CN102330707A (en) * | 2011-09-30 | 2012-01-25 | 西安胜唐鼓风机有限公司 | Sintering centrifugal blower impeller |
| CN203067346U (en) * | 2013-01-15 | 2013-07-17 | 珠海格力电器股份有限公司 | Double-inlet centrifugal wind wheel and conditioner adopting same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114756101A (en) * | 2022-04-29 | 2022-07-15 | 浪潮(山东)计算机科技有限公司 | Expansion card heat dissipation module and case |
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Application publication date: 20140716 |
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