CN102269180A - Impellor structure and cross-flow fan - Google Patents
Impellor structure and cross-flow fan Download PDFInfo
- Publication number
- CN102269180A CN102269180A CN2011101957632A CN201110195763A CN102269180A CN 102269180 A CN102269180 A CN 102269180A CN 2011101957632 A CN2011101957632 A CN 2011101957632A CN 201110195763 A CN201110195763 A CN 201110195763A CN 102269180 A CN102269180 A CN 102269180A
- Authority
- CN
- China
- Prior art keywords
- blade
- row
- vane group
- cross
- fixing frame
- 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.)
- Pending
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses an impellor structure which comprises a fixed frame, wherein the fixed frame is internally provided with at least two rows of blade sets; each row of blade sets comprise a plurality of blades; and each row of blades are arranged around the axial lead of the fixed frame. According to the invention, the impellor structure is provided with at least two rows of blade sets, thus the air flow at least is subjected to four times of force effects of blades, in the arranged at least two rows of blade sets, the blades in the second row of blade sets play an auxiliary role, and can smash the vortex and guide the air flow, thus the eccentric vortex in a cross-flow fan wheel is reduced, the air rate of secondary back flow of a cross-flow fan is reduced, the outlet air column is increased, the flow field characteristic is improved, the air discharge is more uniform, simultaneously the at least two rows of blade sets can smash the large vortex, and the noise is reduced; and the second row of blade sets play a role of guidance on the air flow, the original flow direction of the air flow can be changed, and the air flow is guided to flow to the other side of the impellor, and further flows out of the impellor. The invention also discloses the cross-flow fan.
Description
Technical field
The present invention relates to the blower ventilation field, be specifically related to a kind of cross flow fan that has the blade wheel structure of double-row blades and be provided with this kind blade wheel structure.
Background technique
Cross flow fan is a vitals in the air-conditioning.Common cross flow fan generally is made up of impeller, air channel and motor three parts.Blade wheel structure in the existing cross flow fan is seen Fig. 1, shown in Figure 2, comprise a fixing frame 1, in fixing frame, be provided with a row and have a plurality of structures, shape, the vane group of the blade 2 that size is all identical, this kind blade wheel structure is owing to only be provided with row's vane group, when the permeate gas stream impeller flows, be subjected to the effect of twice power of blade, flow out by exhaust outlet, because the mobility status of air-flow in impeller is very complicated, air-flow field is astable, thereby this blade wheel structure with single impeller in the prior art, exists a large amount of whirlpools and a big eccentric vortex in impeller, the existence of eccentric vortex, make pressure inhomogeneous, pressure difference is big, and air output is little, produce and reflux, cause the inefficiency of cross flow fan.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of blade wheel structure, be applied in the cross flow fan, can improve the uniformity of air-out.
Based on this, the present invention also provides a kind of cross flow fan.
For solving the problems of the technologies described above, technological scheme of the present invention is:
A kind of blade wheel structure comprises fixing frame, and at least two row's vane group are set in the described fixing frame, and every row's vane group comprises a plurality of blades, and each arranges vane group all around the shaft axis setting of fixing frame.
Preferably, the size of the blade in every row's vane group varies in size with other blades of arranging in vane group.
Preferably, comprise being arranged on and arrange vane group near first row's vane group in the fixing frame outside and near second of fixing frame inboard, the blade in described first row's vane group, its volume is greater than the volume of blade in second row's vane group.
Preferably, the line in same row's vane group between two ends of the cross section of each blade, the cross section outer end of each blade and the line between the fixing frame axle center, these two line angulations are identical.
Preferably, line, the cross section outer end of each blade and the line between the fixing frame axle center in different row's vane group between two ends of the cross section of each blade, these two line angulation differences.
A kind of cross flow fan comprises air channel, motor, blade wheel structure, and described blade wheel structure comprises fixing frame, and at least two row's vane group are set in the described fixing frame, and every row's vane group comprises a plurality of blades, and each arranges vane group all around the shaft axis setting of fixing frame.
Preferably, the size of the blade in every row's vane group varies in size with other blades of arranging in vane group.
Preferably, comprise being arranged on and arrange vane group near first row's vane group in the fixing frame outside and near second of fixing frame inboard, the blade in described first row's vane group, its volume is greater than the volume of blade in second row's vane group.
Preferably, the line in same row's vane group between two ends of the cross section of each blade, the cross section outer end of each blade and the line between the fixing frame axle center, these two line angulations are identical.
Preferably, line, the cross section outer end of each blade and the line between the fixing frame axle center in different row's vane group between two ends of the cross section of each blade, these two line angulation differences.
Compared with prior art, blade wheel structure of the present invention is owing to be provided with at least two row's vane group, make air-flow be subjected to the effect of four power of blade at least for four times, in at least two row's vane group that are provided with, blade in second row's vane group helps out, can play the effect of smashing eddy current and air-guiding, thereby reduce the eccentric vortex in the tubular wine wheel, thereby reduce the air quantity of cross flow fan secondary back, the air quantity of increasing export has improved flow field characteristic, can make air-out more even, simultaneously this at least two rows' vane group can also be smashed Maelstrom, thereby reduces noise.Wherein, second row's vane group plays guiding function to air-flow, can change the original flow direction of air-flow, and steering flow flows to the opposite side of impeller and then flows out impeller.
The present invention has made full use of aerodynamic principle, reorganized the type of flow of air in impeller inside, the booster action that makes full use of second row's vane group is smashed the whirlpool that is produced by first row's vane group, change the inner air flow field simultaneously, make pressure become evenly, pressure difference diminishes, reduced the eccentric vortex size simultaneously, avoid the generation of whirlpool and backflow to a certain extent, when being applied in the cross flow fan, improved the efficient of cross flow fan.
Description of drawings
Fig. 1 is the schematic representation of blade wheel structure in the existing cross flow fan;
Fig. 2 is the side view of Fig. 1;
Fig. 3 is the cross sectional representation of blade wheel structure one preferred embodiment of the present invention;
Fig. 4 is the schematic representation of blade of the present invention.
Among the figure, relevant reference character is as follows:
1---fixing frame;
2---the blade of first row's vane group;
3---the blade of second row's vane group.
Embodiment
In order to make those skilled in the art understand technological scheme of the present invention better, the present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Referring to Fig. 3, Fig. 4, the blade wheel structure in the present embodiment comprises fixing frame 1, arranges vane group near second of first row's vane group of setting outside the fixing frame, the inboard setting of close fixing frame.
Wherein, be provided with a plurality of blades 2 and the second corresponding one by one setting of a plurality of blades 3 of arranging in the vane group that are provided with in a plurality of blade 2, the second row's vane group in a plurality of blade 3, the first row's vane group in first row's vane group, certainly in other embodiments, can not be provided with one to one yet.The distance setting that blade 2 is certain at interval with blade 3.
Wherein, each blade 2 sizes in first row's vane group are identical, and each blade 3 sizes in second row's vane group are identical, and the size of blade 2 is greater than the size of blade 3.
Referring to Fig. 4, line between the end in the line between two ends of leaf cross-section, the close outside and the center of fixing frame, these two line angulation α, be referred to as the inclination angle of blade, each blade in same row's vane group, its inclination angle is identical, certainly in other embodiments, also can be arranged to the different blade in inclination angle.Referring to Fig. 3, the inclination alpha 1 of blade 2 is greater than the inclination alpha 2 of blade 3, and in other embodiments, the inclination alpha 1 of blade 2 is less than or equal to the inclination alpha 2 of blade 3.
The blade wheel structure of present embodiment is when work, air-flow is at first through first row's vane group, under the effect of first row's vane group power, air-flow enters impeller, and the speed and the direction of air-flow change, second row's vane group mainly plays guiding function to air-flow, corrects because the big direction variation that first row's vane group produces the effect of air-flow, and steering flow flows to the exhaust outlet of cross flow fan.
Blade wheel structure in the present embodiment can apply the effect of four power to air-flow, second row's vane group wherein helps out, can smash the whirlpool that first row's vane group produces, the inclination angle of blade has change slightly in second row's vane group, can play guiding function to air-flow.The blade wheel structure of present embodiment can change the interior flow field of cross flow fan, reduces the size of eccentric vortex, increases air quantity, reduces noise, improves the efficient of blower fan.
The length of blade can be made suitable change according to the size of cross flow fan power with the ratio of the length of blade in first row's vane group in second row's vane group.
In the present embodiment, be provided with two row's vane group, in other embodiments, the vane group of greater number can be set also, and the blade in the different vane group, identical angle can be arranged in its inclination angle.
More than the present invention is described in detail, use specific case in the literary composition principle of the present invention and mode of execution set forth, above embodiment's explanation just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (10)
1. a blade wheel structure comprises fixing frame, it is characterized in that, at least two row's vane group are set in the described fixing frame, and every row's vane group comprises a plurality of blades, and each arranges vane group all around the shaft axis setting of fixing frame.
2. blade wheel structure as claimed in claim 1 is characterized in that, the blade size in every row's vane group varies in size with other blades of arranging in vane group.
3. blade wheel structure as claimed in claim 1, it is characterized in that, comprise being arranged on and arrange vane group near first row's vane group in the fixing frame outside and near second of fixing frame inboard, the blade in described first row's vane group, its volume is greater than the volume of blade in second row's vane group.
4. blade wheel structure as claimed in claim 1 is characterized in that, the line in same row's vane group between two ends of the cross section of each blade, the cross section outer end of each blade and the line between the fixing frame axle center, and these two line angulations are identical.
5. blade wheel structure as claimed in claim 4 is characterized in that, line, the cross section outer end of each blade and the line between the fixing frame axle center in different row's vane group between two ends of the cross section of each blade, these two line angulation differences.
6. a cross flow fan comprises air channel, motor, blade wheel structure, it is characterized in that, described blade wheel structure comprises fixing frame, at least two row's vane group are set in the described fixing frame, and every row's vane group comprises a plurality of blades, and each arranges vane group all around the shaft axis setting of fixing frame.
7. cross flow fan as claimed in claim 1 is characterized in that, the blade size in every row's vane group varies in size with other blades of arranging in vane group.
8. cross flow fan as claimed in claim 1, it is characterized in that, comprise being arranged on and arrange vane group near first row's vane group in the fixing frame outside and near second of fixing frame inboard, the blade in described first row's vane group, its volume is greater than the volume of blade in second row's vane group.
9. cross flow fan as claimed in claim 1 is characterized in that, the line in same row's vane group between two ends of the cross section of each blade, the cross section outer end of each blade and the line between the fixing frame axle center, and these two line angulations are identical.
10. cross flow fan as claimed in claim 9 is characterized in that, line, the cross section outer end of each blade and the line between the fixing frame axle center in different row's vane group between two ends of the cross section of each blade, these two line angulation differences.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101957632A CN102269180A (en) | 2011-07-13 | 2011-07-13 | Impellor structure and cross-flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101957632A CN102269180A (en) | 2011-07-13 | 2011-07-13 | Impellor structure and cross-flow fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102269180A true CN102269180A (en) | 2011-12-07 |
Family
ID=45051576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101957632A Pending CN102269180A (en) | 2011-07-13 | 2011-07-13 | Impellor structure and cross-flow fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102269180A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277336A (en) * | 2013-05-08 | 2013-09-04 | 广东顺威精密塑料股份有限公司 | Air conditioner cross-flow fan capable of effectively improving fan performance |
| CN106194827A (en) * | 2016-07-11 | 2016-12-07 | 沈阳航空航天大学 | Improve the birotor blade wheel structure of cross flow fan total pressure efficiency |
| CN107606698A (en) * | 2017-08-30 | 2018-01-19 | 青岛海尔空调器有限总公司 | Indoor apparatus of air conditioner |
| CN107781212A (en) * | 2017-10-18 | 2018-03-09 | 高歌飞行科技（成都）有限公司 | It is a kind of to rotary fluid negative pressure bubble, lifting body and fan |
| CN108150438A (en) * | 2017-12-25 | 2018-06-12 | 沈阳航空航天大学 | A kind of cross-flow fan structure for improving total pressure efficiency |
| JP2021080901A (en) * | 2019-11-21 | 2021-05-27 | 三菱重工サーマルシステムズ株式会社 | Cross flow fan, and indoor unit of air conditioner |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0843102A2 (en) * | 1996-11-13 | 1998-05-20 | Eaton Corporation | Fan assembly having increased fan blade area |
| CN200996386Y (en) * | 2007-01-16 | 2007-12-26 | 郁惕人 | Centrifugal ventilaters for naval vessels |
| CN101144484A (en) * | 2006-09-11 | 2008-03-19 | 广东科龙电器股份有限公司 | Through-flow fan impeller |
| CN201078349Y (en) * | 2007-08-17 | 2008-06-25 | 黄德超 | Hot air gun fan of two group turbine |
| CN201148994Y (en) * | 2008-01-16 | 2008-11-12 | 天津内燃机研究所 | Mixed blade cooling fan |
| CN201372965Y (en) * | 2008-12-02 | 2009-12-30 | 美的集团有限公司 | Cross flow wind wheel |
| CN201420685Y (en) * | 2009-04-16 | 2010-03-10 | 宁波朗迪叶轮机械有限公司 | Cross-flow fan |
| EP2261511A2 (en) * | 2009-06-12 | 2010-12-15 | Sanyo Denki Co., Ltd. | Centrifugal fan |
-
2011
- 2011-07-13 CN CN2011101957632A patent/CN102269180A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0843102A2 (en) * | 1996-11-13 | 1998-05-20 | Eaton Corporation | Fan assembly having increased fan blade area |
| CN101144484A (en) * | 2006-09-11 | 2008-03-19 | 广东科龙电器股份有限公司 | Through-flow fan impeller |
| CN200996386Y (en) * | 2007-01-16 | 2007-12-26 | 郁惕人 | Centrifugal ventilaters for naval vessels |
| CN201078349Y (en) * | 2007-08-17 | 2008-06-25 | 黄德超 | Hot air gun fan of two group turbine |
| CN201148994Y (en) * | 2008-01-16 | 2008-11-12 | 天津内燃机研究所 | Mixed blade cooling fan |
| CN201372965Y (en) * | 2008-12-02 | 2009-12-30 | 美的集团有限公司 | Cross flow wind wheel |
| CN201420685Y (en) * | 2009-04-16 | 2010-03-10 | 宁波朗迪叶轮机械有限公司 | Cross-flow fan |
| EP2261511A2 (en) * | 2009-06-12 | 2010-12-15 | Sanyo Denki Co., Ltd. | Centrifugal fan |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277336A (en) * | 2013-05-08 | 2013-09-04 | 广东顺威精密塑料股份有限公司 | Air conditioner cross-flow fan capable of effectively improving fan performance |
| CN103277336B (en) * | 2013-05-08 | 2016-05-04 | 广东顺威精密塑料股份有限公司 | Can effectively improve the idle call axial-flow fan of fan performance |
| CN106194827A (en) * | 2016-07-11 | 2016-12-07 | 沈阳航空航天大学 | Improve the birotor blade wheel structure of cross flow fan total pressure efficiency |
| CN107606698A (en) * | 2017-08-30 | 2018-01-19 | 青岛海尔空调器有限总公司 | Indoor apparatus of air conditioner |
| CN107606698B (en) * | 2017-08-30 | 2019-12-06 | 青岛海尔空调器有限总公司 | Indoor unit of air conditioner |
| CN107781212A (en) * | 2017-10-18 | 2018-03-09 | 高歌飞行科技（成都）有限公司 | It is a kind of to rotary fluid negative pressure bubble, lifting body and fan |
| CN108150438A (en) * | 2017-12-25 | 2018-06-12 | 沈阳航空航天大学 | A kind of cross-flow fan structure for improving total pressure efficiency |
| JP2021080901A (en) * | 2019-11-21 | 2021-05-27 | 三菱重工サーマルシステムズ株式会社 | Cross flow fan, and indoor unit of air conditioner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102269180A (en) | Impellor structure and cross-flow fan | |
| US20130243588A1 (en) | Bladeless fan | |
| CN204646777U (en) | Radial flow impeller and fan unit | |
| CN103062112B (en) | Road cleaning equipment and centrifugal fan impeller thereof | |
| CN105221452A (en) | Air cleaner and blast device thereof | |
| US20130136576A1 (en) | Wind turbine air flow guide device | |
| CN205332400U (en) | Air purifier | |
| CN110374900A (en) | A kind of flow-mixing blower fan with sinusoidal pattern meridional channel | |
| CN110374925A (en) | A kind of bilayer collector and the flow-mixing blower fan for assembling the double-deck collector | |
| CN106593950A (en) | Blade, centrifugal fan impeller, centrifugal fan and extractor hood | |
| CN104131998B (en) | Fan and sweeping machine | |
| CN110081006A (en) | A kind of multiple duct high temperature resistant centrifugal blower | |
| CN105673559B (en) | Efficient meridionally-accelerated axial flow fan with casing | |
| CN205136069U (en) | Air purifier and air supply arrangement thereof | |
| CN105736406A (en) | Single-power hub and shell oppositely-rotating type multistage axial flow fan | |
| CN206054382U (en) | A kind of spiral case and application have the centrifugal blower of the spiral case | |
| CN201742265U (en) | Hollow shaft of three-phase asynchronous motor with air guide plates | |
| CN204421301U (en) | Air duct structure and air conditioner | |
| CN202273892U (en) | Multistage vortex-type air pump | |
| CN104566890B (en) | Air duct structure and air conditioner | |
| JP4784393B2 (en) | Axial blower | |
| CN204306255U (en) | Blower fan | |
| CN105370589A (en) | A blower fan | |
| CN102619783A (en) | Blade structure for centrifugal fans | |
| CN101917102B (en) | Three-phase asynchronous motor hollow shaft with air deflectors |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20111207 |