CN203067346U - Double-air-inlet centrifugal wind wheel and air conditioner with same - Google Patents
Double-air-inlet centrifugal wind wheel and air conditioner with same Download PDFInfo
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- CN203067346U CN203067346U CN 201320032990 CN201320032990U CN203067346U CN 203067346 U CN203067346 U CN 203067346U CN 201320032990 CN201320032990 CN 201320032990 CN 201320032990 U CN201320032990 U CN 201320032990U CN 203067346 U CN203067346 U CN 203067346U
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- wind wheel
- rotating shaft
- shaft plate
- centrifugal wind
- air intake
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- 230000007704 transition Effects 0.000 claims abstract description 23
- 238000004378 air conditioning Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model provides a two air inlet centrifugal wind wheel, this wind wheel include the pivot board and set up respectively in the first blading and the second blading of pivot board both sides, and the one end of first blading and second blading is connected respectively in the excircle border of pivot board, and the other end then forms two circular air intakes respectively, the thickness at pivot board middle part is greater than the thickness at excircle border to from middle part to the excircle border be level and smooth circular arc transition face. Through setting up the thickness at pivot board middle part and being greater than the thickness at excircle border to from middle part to excircle border be smooth circular arc transition face, make gas flow from the air intake when entering the wind wheel inside, the air current can be along inside circular arc transition face smooth transition and the outflow wind wheel, be difficult to produce the vortex of circling round on pivot board surface, make fluidic utilization ratio improve when noise reduction, relative amount of wind increases, has promoted complete machine efficiency.
Description
Technical field
The utility model relates to field of air conditioning, especially, relates to a kind of pair of air intake centrifugal wind wheel and has the air conditioner of this wind wheel.
Background technique
Centrifugal blower provides aerodynamical equipment, and along with the development of every profession and trades such as air-conditioning, centrifugal blower uses more and more widely, 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 the impeller by design, realize the transmission of power, during fan operation, impeller rotation, air-flow enters the blade path of rotation, and gas is compressed and flow out along radial outward under action of centrifugal force, so in the inner low pressure that forms of impeller, extraneous gas enters the inner low pressure area of impeller from the impeller intake grill, and so circulation just has wind constantly to flow out from the centrifugal blower outlet.Because the rotating shaft plate in the middle of the prior art impeller is slab construction, when gas enters impeller inside from the outside, owing to stopping of rotating shaft plate, back flow after gas is blocked, so be easy to produce eddy current on rotating shaft plate surface, make fan delivery reduce, noise increases, and whole efficiency is on the low side.
The model utility content
The air conditioner that the utility model purpose is to provide a kind of pair of air intake centrifugal wind wheel and has this wind wheel is to solve the existing technical problem that fan delivery is low, noise is big, whole efficiency is on the low side.
For achieving the above object, the utility model provides a kind of pair of air intake centrifugal wind wheel, comprise the rotating shaft plate and be arranged at first vane group and second vane group of rotating shaft plate both sides respectively, one end of first vane group and second vane group is connected to the outer circumferential edge edge of rotating shaft plate, the other end then forms two circular intake grills respectively, 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 transition face between the outer circumferential edge edge.
Further, the middle part of described rotating shaft plate is provided with rotary shaft hole, increases gradually along the radius of curvature to the arc transition face on the outer circumferential edge edge of rotating shaft plate from the outer diameter side of rotary shaft hole.
Further, described arc transition face comprises the little arc surface of multistage different curvature radius, is smooth connection between each little arc surface.
Further, to the outer circumferential edge edge, the radius of curvature of little arc surface increases gradually from described rotating shaft plate middle part.
Further, described arc transition face comprises two sections little arc surfaces; The radius of curvature of first section little arc surface is R1; The radius of curvature of second section little arc surface is R2; And 5*R1＜R2.
Further, the angle of the shaft axis of the tangent line of described first section little arc surface and rotating shaft plate is α, and 0 °＜α＜30 °.
Further, the angle of the radial line of the tangent line of described second section little arc surface and rotating shaft plate is β, and 0 °＜β＜15 °.
Further, the joint of described first vane group and second vane group and rotating shaft plate is provided with stiffening rib.
For achieving the above object, the utility model provides a kind of air conditioner in addition, and described air conditioner is equiped with described pair of air intake centrifugal wind wheel of above-mentioned any scheme.
The utlity model has following beneficial effect:
The thickness of the utility model by rotating shaft plate middle part is set is greater than the thickness on outer circumferential edge edge, and outside round edge edge is level and smooth arc transition face from the middle part, when making gas flow to wind wheel inside from intake grill, air-flow can be along the transition and flow out wind wheel inside smoothly of arc transition face, be not easy to produce the eddy current that circles round on rotating shaft plate surface, the utilization ratio of fluid is improved, and air quantity increases relatively, has promoted overall efficiency.
Except purpose described above, feature and advantage, the utility model also has other purpose, feature and advantage.With reference to figure, the utility model is described in further detail below.
Description of drawings
The accompanying drawing that constitutes the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not constitute improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the plan view according to of the present utility model pair of air intake centrifugal wind wheel;
Fig. 2 is the left view according to of the present utility model pair of air intake centrifugal wind wheel;
Fig. 3 is the middle part sectional view according to of the present utility model 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 utility model pair of air intake centrifugal wind wheel;
Fig. 5 is the schematic representation according to the arc transition face of of the present utility model pair of air intake centrifugal wind wheel.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model 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 first vane group 10 and second vane group 20 of rotating shaft plate 30 both sides respectively, one end of first vane group 10 and second vane group 20 is connected to the outer circumferential edge edge of rotating shaft plate 30, the other end then forms two circular intake grills 40 respectively, 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 transition face 31 between the outer circumferential edge edge.Thickness by rotating shaft plate 30 middle parts are set is greater than the thickness on outer circumferential edge edge, and outside round edge edge is level and smooth arc transition face 31 from the middle part, when making gas flow to wind wheel inside from intake grill, air-flow can be along the transition and flow out wind wheel inside smoothly of arc transition face, be not easy to produce the eddy current that circles round on rotating shaft plate surface, the utilization ratio of fluid is improved, and air quantity increases relatively, has promoted overall efficiency.
The middle part of described rotating shaft plate 30 is provided with rotary shaft hole 32, increase gradually along the radius of curvature to the arc transition face on the outer circumferential edge edge of rotating shaft plate 30 from the outer diameter side of rotary shaft hole 32, like this dynamic (dynamical) principle of composite gas stream is set, better to the cushioning effect of gas flow.
Described arc transition face 31 comprises the little arc surface of multistage different curvature radius, is smooth connection between each little arc surface.To the outer circumferential edge edge, the radius of curvature of little arc surface increases gradually from described rotating shaft plate middle part.
As shown in Figure 5, preferably, described arc transition face comprises two sections little arc surfaces; The radius of curvature of first section little arc surface is R1; The radius of curvature of second section little arc surface is R2; And 5*R1＜R2.The angle of the shaft axis of the tangent line of described first section little arc surface and rotating shaft plate is α, and 0 °＜α＜30 °.The angle of the radial line of the tangent line of described second section little arc surface and rotating shaft plate is β, and 0 °＜β＜15 °.These data all are the optimum values that draws through long-term experiment, according to the centrifugal wind wheel that described data are made, and the air quantity maximum that produces during its work, noise is minimum, performance the best.
The joint of described first vane group and 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 the complete machine performance.
The utility model also provides a kind of air conditioner in addition, and described air conditioner is equiped with described pair of air intake centrifugal wind wheel of above-mentioned any scheme.Owing to the effect of centrifugal wind wheel, improved the complete machine performance of air conditioner.
The above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (9)
1. two air intake centrifugal wind wheel, comprise the rotating shaft plate and be arranged at first vane group and second vane group of rotating shaft plate both sides respectively, one end of first vane group and second vane group is connected to the outer circumferential edge edge of rotating shaft plate, and the other end then forms two circular intake grills respectively, 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 transition face between the outer circumferential edge edge.
2. according to claim 1 pair of air intake centrifugal wind wheel, it is characterized in that: the middle part of described rotating shaft plate is provided with rotary shaft hole, increases gradually along the radius of curvature to the arc transition face on the outer circumferential edge edge of rotating shaft plate from the outer diameter side of rotary shaft hole.
3. according to claim 1 pair of air intake centrifugal wind wheel, it is characterized in that: described arc transition face comprises the little arc surface of multistage different curvature radius, is smooth connection between each little arc surface.
4. according to claim 3 pair of air intake centrifugal wind wheel is characterized in that: to the outer circumferential edge edge, the radius of curvature of described little arc surface increases gradually from described rotating shaft plate middle part.
5. according to claim 4 pair of air intake centrifugal wind wheel, it is characterized in that: described arc transition face comprises two sections little arc surfaces; The radius of curvature of first section little arc surface is R1; The radius of curvature of second section little arc surface is R2; And 5*R1＜R2.
6. according to claim 5 pair of air intake centrifugal wind wheel, it is characterized in that: the angle of the shaft axis of the tangent line of described first section little arc surface and rotating shaft plate is α, and 0 °＜α＜30 °.
7. according to claim 5 pair of air intake centrifugal wind wheel, it is characterized in that: the angle of the radial line of the tangent line of described second section little arc surface and rotating shaft plate is β, and 0 °＜β＜15 °.
8. according to any described pair of air intake centrifugal wind wheel in the claim 1 to 7, it is characterized in that: the joint of described first vane group and second vane group and rotating shaft plate is provided with stiffening rib.
9. an air conditioner is characterized in that: be equiped with any described pair of air intake centrifugal wind wheel in the claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320032990 CN203067346U (en) | 2013-01-15 | 2013-01-15 | Double-air-inlet centrifugal wind wheel and air conditioner with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320032990 CN203067346U (en) | 2013-01-15 | 2013-01-15 | Double-air-inlet centrifugal wind wheel and air conditioner with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203067346U true CN203067346U (en) | 2013-07-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320032990 Expired - Lifetime CN203067346U (en) | 2013-01-15 | 2013-01-15 | Double-air-inlet centrifugal wind wheel and air conditioner with same |
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| Country | Link |
|---|---|
| CN (1) | CN203067346U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925242A (en) * | 2013-01-15 | 2014-07-16 | 珠海格力电器股份有限公司 | Double-air-inlet centrifugal wind wheel and air conditioner with same |
| CN104747495A (en) * | 2013-12-26 | 2015-07-01 | 珠海格力电器股份有限公司 | Forward type centrifugal fan blade, centrifugal fan and air conditioner with centrifugal fan blade |
| CN105020172A (en) * | 2015-08-19 | 2015-11-04 | 珠海格力电器股份有限公司 | Impeller and centrifugal fan and air conditioner evaporator with same |
| CN107143470A (en) * | 2017-07-07 | 2017-09-08 | 中航瑞德（北京）科技有限公司 | Wind electricity blade is vortexed synergy component and its installation method |
-
2013
- 2013-01-15 CN CN 201320032990 patent/CN203067346U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925242A (en) * | 2013-01-15 | 2014-07-16 | 珠海格力电器股份有限公司 | Double-air-inlet centrifugal wind wheel and air conditioner with same |
| CN104747495A (en) * | 2013-12-26 | 2015-07-01 | 珠海格力电器股份有限公司 | Forward type centrifugal fan blade, centrifugal fan and air conditioner with centrifugal fan blade |
| CN105020172A (en) * | 2015-08-19 | 2015-11-04 | 珠海格力电器股份有限公司 | Impeller and centrifugal fan and air conditioner evaporator with same |
| CN107143470A (en) * | 2017-07-07 | 2017-09-08 | 中航瑞德（北京）科技有限公司 | Wind electricity blade is vortexed synergy component and its installation method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130717 |