CN202690524U - Cross flow wind wheel and air-conditioner including cross flow wind wheel - Google Patents
Cross flow wind wheel and air-conditioner including cross flow wind wheel Download PDFInfo
- Publication number
- CN202690524U CN202690524U CN 201220245649 CN201220245649U CN202690524U CN 202690524 U CN202690524 U CN 202690524U CN 201220245649 CN201220245649 CN 201220245649 CN 201220245649 U CN201220245649 U CN 201220245649U CN 202690524 U CN202690524 U CN 202690524U
- Authority
- CN
- China
- Prior art keywords
- impeller
- tubular wine
- wine wheel
- curve
- blade
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides a cross flow wind wheel and an air-conditioner including the cross flow wind wheel. The cross flow wind wheel comprises a rotating shaft and two lateral plates sleeved on an outer periphery of the rotating shaft at intervals, wherein an impeller is arranged between the two lateral plates, the impeller comprises a plurality of impeller median segments of the same structure, the impeller median segments are fixedly connected and axially arranged along the rotating shaft in sequence, every two adjacent impeller median segments are separated by an annular separation plate, each impeller median segment comprises a plurality of blades which are evenly arranged at intervals, and every two adjacent impeller median segments rotate in stagger with the rotating shaft serving as the axis. The plurality of impeller median segments of the same structure are sequentially connected, every two adjacent impeller median segments rotate in stagger to deploy into a concentric annular body, resonance and padding vibration noise caused by identical frequency by overlapping frequency noise are effectively avoided, noise of the cross flow wind wheel is effectively reduced under the condition that air quantity and wind pressure of cross flow wind wheel are guaranteed to be unchanged and fan diameter does not increase, and service efficiency is improved.
Description
Technical field
The utility model relates to low pressure ventilation air regenerating device field, in particular to a kind of tubular wine wheel and comprise the air-conditioning of this tubular wine wheel.
Background technique
The characteristics such as tubular wine wheel is simple in structure because having, and volume is little, and the air-flow of generation steadily, the dynamic pressure coefficient is higher, reach is long and noise is low are widely used in the device of the low pressure ventilations ventilations such as household electric appliance and air-conditioning equipment.Yet, because asymmetry and the complexity of the particularity of tubular wine wheel structure, internal gas flow motion so that people have little understanding on the various factors that affects the tubular wine wheel performance, do not occur universally recognized design theory both at home and abroad so far yet.
Tubular wine wheel is mainly used in field of air conditioning on the chamber interior walls on-hook structure, and is therefore higher to the requirement of its noise control.Tubular wine wheel mainly is comprised of impeller, spiral case and motor, the air-flow blade of flowing through for twice, blade by tangential impeller top enters, flow out from the blade of tangential impeller bottom, cause overdraught at mobile whirlpool of the inner formation of impeller, the size of this whirlpool and position affect through-current capability and the noise of indoor units to some extent.
The Main Noise Sources of unit is the air aerodynamic noise of tubular wine wheel in the wall-hanging air conditioner, and it is comprised of two-part: i.e. rotational noise and eddy current crack.Wherein, rotational noise is for affecting the main component of tubular wine wheel noise.The generation reason of rotational noise comprises following two aspects: one, when impeller during in free-space rotation, because the gas medium around blade hits, with certain contiguous fixed position of blade on, air is subject to the periodic excitation of blade and pressure field thereof and produces noise; Two, owing to air-flow in the blade exit district has very large nonuniformity, this nonuniformity air-flow periodically acts on environment, produce pressure pulsation and form noise, when the spacing between movable vane row and snail tongue is too small, the inswept rear row's blade of front-seat blade wake, perhaps all can produce pulsating force in the situation of the inswept snail tongue of movable vane wake flow, thereby produce rotational noise.
In order to reduce the impact of rotational noise, generally adopt in the industry at present the means such as oblique blade, impeller clearance be not equidistant to design, for example adopt oblique blade design can effectively avoid air-flow in the energy stack of blade passing frequency, and then can effectively reduce the rotational noise peak value, but this design can cause air quantity to reduce and cause performance not reach the situation of requirement.Therefore, in the situation that guarantee air quantity and blast is constant, fan diameter does not increase, reducing chamber interior walls on-hook tubular wine wheel noise and improving its efficient is current a great problem.
The model utility content
The utility model aims to provide a kind of tubular wine wheel and comprises the air-conditioning of this tubular wine wheel, to guarantee that tubular wine wheel in the situation that its air quantity and blast are constant, fan diameter does not increase, reduces the noise of tubular wine wheel effectively, improves its utilization efficiency.
To achieve these goals, according to an aspect of the present utility model, a kind of tubular wine wheel is provided, comprise: running shaft, spacer sleeve are located at two side plates of running shaft excircle, be provided with impeller between two side plates, impeller comprises in the identical impeller of a plurality of structures of axially being fixedly connected sequentially along running shaft and saving, separate by toroidal membrane between the joint in every adjacent two impellers, joint comprises the blade that a plurality of even intervals arrange in each impeller, and is rotary shifted take running shaft as axle between the joint in two impellers of arbitrary neighborhood.
Further, progressively rotary shifted from axial first end to the second end of tubular wine wheel with identical dislocation angle between the joint in a plurality of impellers.
Further, the suction surface that is positioned at the outer periphery end on the vane airfoil profile of each blade has the first circle arc curve, the first circle arc curve is to having first center of circle and the first radius, the pressure side of periphery acies is to there being the first curve, and the first curve is positioned at the inside that the first circle arc curve prolongs the circumference of gained.
Further, to deduct the scope of value m1 of the beeline in the first curve distance first center of circle be 0.2mm≤m1≤1.5mm to the first radius.
Further, the scope of the peripheral angle α at blade periphery acies end points place is 143 °≤α≤149 °.
Further, the pressure side that is positioned at the inner circumference edge end on the vane airfoil profile of each blade has the second circle arc curve, the second circle arc curve is to having second center of circle and the second radius, the suction surface of inner circumference edge end is to there being the second curve, and the second curve is positioned at the inside that the second circle arc curve prolongs the circumference of gained.
Further, to deduct the scope of value m2 of the beeline in the second curve distance second center of circle be 0.2mm≤m2≤1.5mm to the second radius.
Further, the scope of the interior round angle β at the inner circumference edge end end points place of blade is 74 °≤β≤90 °.
Further, the first radius equates with the second radius length, and the suction surface curve of vane airfoil profile has suction surface and thickens curved section, suction surface thicken curved section apart from the distance of the blade string of a musical instrument greater than the first radius; The pressure side curve of vane airfoil profile has pressure side and thickens curved section, pressure side thicken curved section apart from the distance of the blade string of a musical instrument greater than the first radius.
Further, to thicken the maximum value n1 of distance and the difference of the first radius between curved section and the blade string of a musical instrument be 0.5mm≤n1≤1mm to suction surface; The maximum value n2 that pressure side thickens distance and the difference of the first radius between curved section and the blade string of a musical instrument is 0.5mm≤n2≤1mm.
According on the other hand of the present utility model, a kind of air-conditioning is provided, have tubular wine wheel, this tubular wine wheel is above-mentioned tubular wine wheel.
Tubular wine wheel of the present utility model and comprise the air-conditioning of this tubular wine wheel, connect successively by joint in a plurality of impellers that structure is identical, and with the rotary shifted concentric annular body that is configured between saving in two impellers of arbitrary neighborhood, effectively avoided resonance that the stack of identical frequency by frequency noise produce and the bat noise that shakes, and then guaranteed tubular wine wheel in the situation that its air quantity and blast are constant, fan diameter does not increase, effectively reduce the noise of tubular wine wheel, improved utilization efficiency.
Description of drawings
The Figure of description that consists of 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 consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 shows the schematic diagram of the main TV structure of tubular wine wheel of the present utility model;
Fig. 2 shows the local structure for amplifying schematic diagram of tubular wine wheel of the present utility model;
Fig. 3 shows the radial structure cross-sectional schematic of blade of the present utility model, and wherein, dotted line is depicted as the structural representation of circular arc vane of the prior art;
Fig. 4 shows the radial structure cross-sectional schematic of blade of the present utility model, wherein shows the position of point of contact A and B, and dotted line is depicted as the structural representation of circular arc vane of the prior art; And
Fig. 5 shows the broken section structural representation of impeller of the present utility model, and wherein, dotted line is depicted as the structural representation of circular arc vane of the prior art.
Embodiment
Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.Need to prove, in the situation that do not conflict, embodiment and the feature among the embodiment among the application can make up mutually.
As depicted in figs. 1 and 2, tubular wine wheel of the present utility model, comprise: running shaft 10, spacer sleeve is located at two side plates 11 of running shaft 10 excircles, be provided with impeller between two side plates 11, impeller comprises in the identical impeller of a plurality of structures of axially being fixedly connected sequentially along running shaft 10 and saves 13, separate by toroidal membrane 12 between the joint 13 in every adjacent two impellers, joint 13 comprises the blade 131 that a plurality of vertically even intervals arrange in each impeller, connect with fixing or unfixed angle of swing dislocation between the joint 13 in two impellers of arbitrary neighborhood, so that the cross section vertically between two of arbitrary neighborhood blades 131 does not overlap vertically, preferably, joint 13 is progressively rotary shifted to the other end from the axial end of tubular wine wheel with fixing dislocation angle in the impeller.
The utility model in use, impeller forms the through-flow air-flows around running shaft 10 rotation, adopts the dislocation of 13 at joint in the impeller to connect can effectively to avoid resonance that the stack of identical frequency by frequency noise produce and the bat noise that shakes.
In conjunction with Fig. 3 and shown in Figure 4, in the tubular wine wheel of the present utility model, the first circle arc curve is positioned at the suction surface of outer periphery end b1 on the vane airfoil profile b of each blade 131 to should be arranged, the first circle arc curve is to having first center of circle and the first radius, the pressure side of periphery acies b1 is to there being the first curve, and the first curve is positioned at the corresponding circumference of the first circular arc line.The second circle arc curve is positioned at the pressure side of inner circumference edge end b2 on the vane airfoil profile b of each blade 131 to should be arranged, the second circle arc curve is to having second center of circle and the second radius, the suction surface of inner circumference edge end b2 is to there being the second curve, and the second curve is positioned at the corresponding circumference of the second circular arc line.Preferably, the first radius equates with the second radius, and the suction surface curve of vane airfoil profile b has apart from the distance of blade string of a musical instrument a and thickens curved section greater than the suction surface of the first radius; The pressure side curve of vane airfoil profile b has apart from the distance of blade string of a musical instrument a and thickens curved section greater than the pressure side of the first radius.
As above can find out, in the tubular wine wheel of the present utility model, vane airfoil profile b is non-circular arc blade profile, as shown in Figure 3 and Figure 4, blade 131 in the utility model is on the basis of the circular arc aerofoil profile c of circular arc vane, respectively blade 131 inner circumference edge end b2 suction surfaces and periphery acies b1 pressure side are done the skiving processing, the thickness of cutting down is preferably 0.2mm ~ 1.5mm, the initial position of cutting down part is point of contact A, the B of circular arc type blade profile two terminal circle and blade face molded line, and seamlessly transits to blade string of a musical instrument a two ends end points.So, impeller incoming air area and air-out area all increase, and the blade 131 incoming flow angles of attack diminish, and airflow breakaway weakens, and circulates more smooth and easy.The utility model also with the thickening of blade 131 middle parts, is preferably thickeied 0.5mm ~ 1mm, adopt this structure can effectively reduce airflow breakaway, and so that leaf road internal pressure and velocity gradient is more even.Adopt the project organization of above-mentioned vane airfoil profile b, not only noise-decreasing and improve air quantity effectively can also improve tonequality and sense of hearing.
The blade string of a musical instrument a of blade 131 and the outer periphery of toroidal membrane 12 angle between the tangent line at blade 131 periphery acies b1 end points places forms peripheral angle α, and the blade string of a musical instrument a of blade 131 and the inner circumference edge of toroidal membrane 12 angle between the tangent line at blade 131 inner circumference edge end b2 end points places forms interior round angle β.Make the through-flow of twice turnover impeller more smooth and easy in order to reach, and avoid to the full extent by charge air flow impeller blade 131 being impacted the pulsation that forms and the rotational noise that causes, in the utility model peripheral angle α is strengthened, and preferably, as shown in Figure 5, the scope of the angle [alpha] of peripheral angle α is 143 °≤α≤149 °, and the interior round angle β corresponding with peripheral angle α also strengthens, and round angle β scope is that the scope of β is 74 °≤β≤90 ° in it.The size that strengthens peripheral angle α and interior round angle β can reduce the air intake air-flow angle of attack effectively, thereby can effectively avoid air-flow to cross the airflow breakaway in the generation of blade 131 leading edge suction faces that large impact blade 131 causes because of the angle of attack, thereby effectively avoid by charge air flow impeller blade 131 being impacted the pulsation that forms and the rotational noise that causes.
The utility model also provides a kind of air-conditioning, has tubular wine wheel, and this tubular wine wheel is above-mentioned tubular wine wheel.
From above description, can find out, tubular wine wheel of the present utility model and comprise the air-conditioning of this wind wheel, connect successively by joint 13 in a plurality of impellers that structure is identical, and with the rotary shifted concentric annular body that is configured between saving 13 in two impellers of arbitrary neighborhood, effectively avoided resonance that the stack of identical frequency by frequency noise produce and the bat noise that shakes, and then guaranteed tubular wine wheel in the situation that its air quantity and blast are constant, fan diameter does not increase, effectively reduce the noise of tubular wine wheel, improved utilization efficiency.
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 modifications and variations.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 (11)
1. tubular wine wheel, comprising: running shaft (10), spacer sleeve are located at two side plates (11) of described running shaft (10) excircle, are provided with impeller between two described side plates (11),
Described impeller comprises joint (13) in the identical impeller of a plurality of structures of axially being fixedly connected sequentially along described running shaft (10), separates by toroidal membrane (12) between the joint (13) in every adjacent two described impellers,
Joint (13) comprises the blade (131) that a plurality of even intervals arrange in each described impeller, it is characterized in that,
Rotary shifted take described running shaft (10) as axle between the joint (13) in two described impellers of arbitrary neighborhood.
2. tubular wine wheel according to claim 1 is characterized in that, and is progressively rotary shifted from axial first end to the second end of described tubular wine wheel with identical dislocation angle between the joint (13) in a plurality of described impellers.
3. tubular wine wheel according to claim 1 is characterized in that,
The suction surface that is positioned at outer periphery end (b1) on the vane airfoil profile (b) of each described blade (131) has the first circle arc curve, and described the first circle arc curve be to should having first center of circle and the first radius,
The pressure side of described periphery acies (b1) is to there being the first curve, and described the first curve is positioned at the inside that described the first circle arc curve prolongs the circumference of gained.
4. tubular wine wheel according to claim 3 is characterized in that, the scope of value m1 that described the first radius deducts the beeline in described first center of circle of described the first curve distance is 0.2mm≤m1≤1.5mm.
5. tubular wine wheel according to claim 3 is characterized in that, the scope of the peripheral angle α at described blade (131) periphery acies (b1) end points place is 143 °≤α≤149 °.
6. tubular wine wheel according to claim 3 is characterized in that,
The pressure side that is positioned at inner circumference edge end (b2) on the vane airfoil profile (b) of each described blade (131) has the second circle arc curve, and described the second circle arc curve be to should having second center of circle and the second radius,
The suction surface of described inner circumference edge end (b2) is to there being the second curve, and described the second curve is positioned at the inside that described the second circle arc curve prolongs the circumference of gained.
7. tubular wine wheel according to claim 6 is characterized in that, the scope of value m2 that described the second radius deducts the beeline in described second center of circle of described the second curve distance is 0.2mm≤m2≤1.5mm.
8. tubular wine wheel according to claim 6 is characterized in that, the scope of the interior round angle β at inner circumference edge end (b2) the end points place of described blade (131) is 74 °≤β≤90 °.
9. tubular wine wheel according to claim 6 is characterized in that,
Described the first radius equates with described the second radius length,
The suction surface curve of described vane airfoil profile (b) has suction surface and thickens curved section, described suction surface thicken curved section apart from the distance of the blade string of a musical instrument (a) greater than described the first radius;
The pressure side curve of described vane airfoil profile (b) has pressure side and thickens curved section, described pressure side thicken curved section apart from the distance of the blade string of a musical instrument (a) greater than described the first radius.
10. tubular wine wheel according to claim 9 is characterized in that,
The maximum value n1 that described suction surface thickens distance and the difference of described the first radius between curved section and the described blade string of a musical instrument (a) is 0.5mm≤n1≤1mm;
The maximum value n2 that described pressure side thickens distance and the difference of described the first radius between curved section and the described blade string of a musical instrument (a) is 0.5mm≤n2≤1mm.
11. an air-conditioning has tubular wine wheel, it is characterized in that, described tubular wine wheel is each described tubular wine wheel among the claim 1-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220245649 CN202690524U (en) | 2012-05-28 | 2012-05-28 | Cross flow wind wheel and air-conditioner including cross flow wind wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220245649 CN202690524U (en) | 2012-05-28 | 2012-05-28 | Cross flow wind wheel and air-conditioner including cross flow wind wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202690524U true CN202690524U (en) | 2013-01-23 |
Family
ID=47546150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220245649 Expired - Lifetime CN202690524U (en) | 2012-05-28 | 2012-05-28 | Cross flow wind wheel and air-conditioner including cross flow wind wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202690524U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452901A (en) * | 2012-05-28 | 2013-12-18 | 珠海格力电器股份有限公司 | Tubular wind wheel and air conditioner with same |
| CN104655054A (en) * | 2013-11-20 | 2015-05-27 | 格力电器（合肥）有限公司 | Cross flow fan dislocation angle measurement method and measurement device thereof |
| CN104728162B (en) * | 2013-12-24 | 2017-04-12 | 珠海格力电器股份有限公司 | Through-flow fan |
-
2012
- 2012-05-28 CN CN 201220245649 patent/CN202690524U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452901A (en) * | 2012-05-28 | 2013-12-18 | 珠海格力电器股份有限公司 | Tubular wind wheel and air conditioner with same |
| CN103452901B (en) * | 2012-05-28 | 2015-10-07 | 珠海格力电器股份有限公司 | Tubular wine wheel and comprise the air-conditioning of this tubular wine wheel |
| CN104655054A (en) * | 2013-11-20 | 2015-05-27 | 格力电器（合肥）有限公司 | Cross flow fan dislocation angle measurement method and measurement device thereof |
| CN104655054B (en) * | 2013-11-20 | 2017-09-29 | 格力电器（合肥）有限公司 | A kind of through-flow fan blade dislocation angle measuring method and its measurement apparatus |
| CN104728162B (en) * | 2013-12-24 | 2017-04-12 | 珠海格力电器股份有限公司 | Through-flow fan |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103452901B (en) | Tubular wine wheel and comprise the air-conditioning of this tubular wine wheel | |
| CN202883485U (en) | Cross flow fan | |
| CN207673613U (en) | A kind of impeller assembly and air purifier | |
| CN202690524U (en) | Cross flow wind wheel and air-conditioner including cross flow wind wheel | |
| CN103573694B (en) | Tangential impeller, cross flow fan and wall-hanging air conditioner | |
| CN203879801U (en) | Double-suction type centrifugal fan blade | |
| CN108412809A (en) | A kind of baffle liner, centrifugal blower and air conditioner | |
| CN107525249B (en) | Air-conditioner outdoor unit air outlet grate and air-conditioner outdoor unit | |
| CN102758793B (en) | Fan blade and axial flow fan with fan blade of air conditioner | |
| CN203584898U (en) | Low-noise high-efficiency central air conditioner outdoor machine cooling axial-flow fan | |
| CN202811428U (en) | Multi-blade centrifugal fan | |
| CN203067346U (en) | Double-inlet centrifugal wind wheel and conditioner adopting same | |
| CN108019847A (en) | Outlet housing and air-conditioner outdoor unit | |
| CN201687736U (en) | Cross flow fan and air conditioner with same | |
| CN204267332U (en) | A kind of efficient quiet axial fan | |
| CN103629156B (en) | A kind of central air conditioner outdoor unit but axial-flow blower of low-noise high-efficiency | |
| CN207004918U (en) | A kind of centrifugal wind wheel that can improve flow field | |
| CN102108978A (en) | Axial flow fan with secondary fan blades | |
| CN202732399U (en) | Air supply device and air conditioner indoor unit | |
| CN104405654A (en) | Mute axial flow fan | |
| CN203214410U (en) | Centrifugal fan blade, centrifugal fan with centrifugal fan blade and air conditioner | |
| CN203671852U (en) | Flow guiding ring, air flue structure and air conditioner cabinet-type indoor unit | |
| CN202418036U (en) | Axial flow fan and air conditioner with same | |
| CN207814044U (en) | A kind of coiler fan | |
| CN202381392U (en) | Fixed impeller with improved air quantity and motor thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130123 |
|
| CX01 | Expiry of patent term |