CN2487893Y - Transverse flow fan and air conditioner using transverse flow fan - Google Patents
Transverse flow fan and air conditioner using transverse flow fan Download PDFInfo
- Publication number
- CN2487893Y CN2487893Y CN01230233U CN01230233U CN2487893Y CN 2487893 Y CN2487893 Y CN 2487893Y CN 01230233 U CN01230233 U CN 01230233U CN 01230233 U CN01230233 U CN 01230233U CN 2487893 Y CN2487893 Y CN 2487893Y
- Authority
- CN
- China
- Prior art keywords
- blade
- flow fan
- fan
- cross
- maximum
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/30—Vanes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
- F24F1/0022—Centrifugal or radial fans
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
本实用新型涉及用于室内制冷或供暖用空调器的横流风扇。本实用新型的横流风扇的特点在于,其叶片在垂直于旋转轴的平面上的剖面在近轴心处具有阶梯。本实用新型的叶片的最大厚度位置设置在离其前缘2%～35%处,且叶片的厚度从最大厚度位置向外侧并向外周端逐渐缩小。由于具有这种形状,能防止在送风运行时产生噪音,提高送风性能。同时,在制造横流风扇时,能够稳定地用树脂来成形叶片,能够提高生产效率。
The utility model relates to a cross-flow fan used for indoor cooling or heating air conditioners. The cross-flow fan of the utility model is characterized in that the section of the blade on a plane perpendicular to the rotation axis has a step near the center of the axis. The maximum thickness position of the blade of the utility model is set at 2% to 35% from the leading edge thereof, and the thickness of the blade gradually decreases from the maximum thickness position to the outside and toward the outer peripheral end. Due to this shape, noise can be prevented during air blowing operation, and the air blowing performance can be improved. At the same time, when manufacturing the cross-flow fan, the blades can be stably molded with resin, and the production efficiency can be improved.
Description
Technical field
The utility model relates to cross flow fan that is used for indoor refrigeration or heating air conditioner and the air conditioner that uses cross flow fan.
Background technique
Figure 18 is the plan view of traditional cross flow fan (being designated hereinafter simply as fan), and Figure 19 is its stereogram.Figure 20 is the sectional view that the gas fan of conventional fan is housed.
As shown in figure 18, traditional fan is that the blade 1 with a plurality of certain-lengths is arranged in cylindrical back and forms impeller 2, more a plurality of impellers 2 is combined along the running shaft direction.
Figure 22 is the amplification view of a blade of fan shown in Figure 21, Figure 21, single-point shown in Figure 22 line L1 represent except that the left part impeller of fan shown in Figure 180 that is with the track of A1-A1 line to the outside front end of the blade 1 of the represented impeller of AN-AN line.
The wing chord length LL of the impeller 2 by making the fan left part is longer than the wing chord length La of other impeller 2, can obtain the characteristic of high pressure type cross flow fan.
In addition, littler than the above-mentioned distance of other impeller blades by the outboard end that makes fan its left part impeller blade 1 of when rotation as shown in figure 20 with the minimum distance of rear case 3, steadying plate 4, can obtain the characteristic of high pressure type cross flow fan.
That is to say, two end part, the left and right sides at fan, to obtain sufficient wind pushing performance in order increasing, its impeller outer diameter to be made bigger, and make and the corresponding blade shape of its external diameter than central part at the flowing resistance that causes because of the air viscosity between impeller and housing sidewall.
, above-mentioned traditional fan is effectively near the raising of the static pressure the sidewall that limits the air-supply path, but is difficult to reach high static pressureization on whole air supply path, may not necessarily improve wind pushing performance.
Summary of the invention
The characteristics of cross flow fan of the present utility model are, its blade at the paraxial heart place end difference is being arranged perpendicular to the section on the plane of running shaft.In addition, the maximum ga(u)ge position of blade of the present utility model is located at from its guide margin 2%～35% place, and the thickness of blade dwindles laterally and towards outer circumference end gradually from the maximum ga(u)ge position.Owing to have this blade shape, can reach the high static pressureization of cross flow fan, can also prevent from when the air-supply operation, to produce noise, can improve wind pushing performance.Simultaneously, when making cross flow fan, can stably come shaping blade, can enhance productivity with resin.
Description of drawings
Fig. 1 is the plan view of the utility model the 1st embodiment's fan (cross flow fan).
Fig. 2 is the sectional view of this embodiment's fan.
Fig. 3 is the amplification view of blade that constitutes this embodiment's fan.
Fig. 4 is the concept map of distinguished and admirable state on the blade of this embodiment's fan of expression.
Fig. 5 is the concept map of distinguished and admirable state on the blade of expression conventional fan.
Fig. 6 is the sectional view of the utility model the 2nd embodiment's fan.
Fig. 7 is the amplification view of blade that constitutes this embodiment's fan.
Fig. 8 be this embodiment the maximum blade thickness position from wing chord inboard in the scope of 2%-30% the P-Q performance plot during variation.
Fig. 9 is the plotted curve that concerns between the height of static pressure and maximum blade thickness position among this embodiment of expression.
Figure 10 is the P-Q performance plot of this embodiment's maximum blade thickness position when changing in 10%～60% scope from the inboard of chord-length,
Figure 11 is the plotted curve that concerns between the height of static pressure and maximum blade thickness position among this embodiment of expression.
Figure 12 is that the maximum ga(u)ge position that is illustrated in blade is the plotted curve of 2%～30% o'clock air quantity performance under certain noise.
Figure 13 is that the maximum ga(u)ge position that is illustrated in blade is the plotted curve of 10%～60% o'clock air quantity performance under certain noise.
Figure 14 is the plan view of the fan among the utility model the 3rd embodiment.
Figure 15 is the blade amplification view at the C-C line place of fan shown in Figure 14.
Figure 16 is the blade amplification view at the D-D line place of fan shown in Figure 14.
Figure 17 is the blade amplification view at the E-E line place of fan shown in Figure 14.
Figure 18 is the plan view of conventional fan.
Figure 19 is the stereogram of this fan.
Figure 20 is the sectional view of the traditional ventilating blower structure of expression.
Figure 21 is the sectional view of conventional fan.
Figure 22 is the amplification view of the blade of this fan.
Embodiment
Below, with reference to accompanying drawing embodiment of the present utility model is described.
(embodiment 1)
Fig. 1 is the plan view of the utility model the 1st embodiment's fan, and Fig. 2 is the sectional view at 100-100 line place in the plan view shown in Figure 1, and Fig. 3 is the amplification view of a part of blade shown in Figure 2.
As shown in Figure 3, the blade that constitutes fan in the present embodiment has following section shape: the thickness of blade strengthens gradually and becomes maximum ga(u)ge in the A-A position from the inside Zhou Fangxiang of its outer circumference end O, the thickness of blade plays the B-B position from the A-A position again and reduces gradually, and sharply increase, and reduce gradually again till the week end I in playing from the B-B position from the end difference of B-B position.In addition, the curved shape of section shape at week end I place in blade outer circumference end O reaches.
In manufacture process, the metal module system that the ester moulding fan is used is formed by the core that limits product design with for the chamber that resin flow is crossed and its inboard shape is limited, and it is the chamber line to zygonema.
The metal pattern of conventional fan is the outer circumference end generation chamber line at blade, so the outer circumference end of blade becomes the seamed edge shape.And the metal pattern of the fan of present embodiment is to produce the chamber line between the interior Zhou Duanyu outer circumference end of blade, so produce ladder in the middle of fan-shaped.Thus, just the fan outer peripheral portion can be configured as arbitrary shape (curve shape).Simultaneously, the interior circumferential portion of fan can also be made its radius of curvature greater than traditional curve shape.
As with air blow out stream explanation, then as shown in Figure 4, present embodiment is by dwindling the outer circumference end radius of curvature of fan blade, air-flow from the pressure surface of blade and suction surface converged and the velocity wake region of dwindling afterbody.
On the other hand, as shown in Figure 5,, can cause bigger afterbody velocity wake region because of border width because the periphery of the blade of conventional fan is the seamed edge shape.
Based on these reasons, the fan of present embodiment can suppress the blade stall that wake flow rises, and improves wind pushing performance.In addition, the blade shape of present embodiment also has the effect that reduces turbulence noise, can also reduce the shunting noise that occurs in the blade front end.
In addition, traditional fan is to form very big regions of turbulent flow from the peeling off of preceding genesis generation air-flow of blade, but leading edge in the fan blade of present embodiment, owing on blade, be formed with ladder, can alleviate peeling off of air-flow, therefore, adopt the fan blade shape of present embodiment can suppress regions of turbulent flow, improve wind pushing performance, static pressure is raise.
(embodiment 2)
The sectional view of the utility model the 2nd embodiment's that Fig. 6 is on indoor machine of air-conditioner to be adorned fan, Fig. 7 is the amplification view of a blade representing with b among Fig. 6.
As shown in Figure 7, in the present embodiment, will be made as 100% with the wing chord length that IO represents, 2%～35% place is provided with the maximum ga(u)ge position in the past genesis.Below, the maximum ga(u)ge position is all represented whole wing chord length ratio (%) with the wing chord length of the past genesis.
That is to say, the blade of present embodiment has following shape: its thickness strengthens and end difference in the B-B position sharply increases gradually from the inside Zhou Fangxiang of outer circumference end O, and then enlarge gradually, become maximum ga(u)ge in the A-A position, and then till interior week end I, reduce gradually from the A-A position.
The P-Q characteristic of the blade shape that the maximum ga(u)ge position that Fig. 8 represents blade in the present embodiment changes at 2%～30% position range of wing chord length, Fig. 9 is illustrated in the slope of the P-Q of opening point place characteristic of height of expression static pressure and the relation between the maximum ga(u)ge position.
As can be seen from Figure 9, near the peak value that static pressure rises is positioned at 20% and near 4%, and has the high more trend of the mobile more to the inside static pressure in maximum ga(u)ge position.
Figure 10 represents the P-Q characteristic of the blade shape that the maximum ga(u)ge position changes at 10%～60% position range of wing chord length, and Figure 11 is illustrated in suction and the slope of the pressure differential deltap P=0 point P-Q of the place characteristic that blows out and the relation between the maximum ga(u)ge position of the height of expression static pressure.
As seen from the figure, the maximum ga(u)ge position can stably obtain higher static pressure when 2%～35% position of wing chord length.
Figure 12 represents maximum ga(u)ge position air quantity performance under certain noise situation when 2%～30% position range of wing chord length changes.Figure 13 represents maximum ga(u)ge position air quantity performance under certain noise situation when the position range from the inboard 10%～60% of wing chord length changes.As we know from the figure, in being 2%～35% zone of wing chord length, the maximum ga(u)ge position can guarantee air quantity performance under certain noise situation basicly stablely.
(embodiment 3)
Figure 14 is the plan view of the utility model the 3rd embodiment's of being adorned fan on indoor machine of air-conditioner, Figure 15, Figure 16 and Figure 17 are respectively the zoomed-in view along the section of C-C line, D-D line and E-E line of fan shown in Figure 14.
That is to say that the thickness of blade shown in Figure 15 dwindles laterally and towards outer circumference end gradually from the B-B position.
In addition, the thickness of blade strengthens gradually to the inboard of B-B position and towards interior Zhou Duan again.
And the thickness of the whole wing is along the order attenuation gradually of C-C line, D-D line, E-E line.(referring to Figure 15, Figure 16, Figure 17)
The blade of the structure that has present embodiment by being shaped so just can stably come shaping blade with resin, can enhance productivity.
From the foregoing description as can be known, if adopt structure of the present utility model,
(1) owing to high static pressureization, thus can not reduce air velocity, thus the noise that difficult generation air-flow forms when unstable.
(2) because the shape at blade inlet edge portion place has been descended the time, improve distinguished and admirable performance, reduced the air-flow of blade inlet edge portion simultaneously again and peeled off, can realize low noiseization.
(3) because the maximum ga(u)ge position is taken in the scope of wing chord length inboard 2～35%,, can obtain the air-supply characteristic of high static pressure, high air quantity so can obtain more obvious above-mentioned effect.
Claims (6)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001139771 | 2001-05-10 | ||
| JP139771/01 | 2001-05-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2487893Y true CN2487893Y (en) | 2002-04-24 |
Family
ID=18986491
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011227214A Expired - Lifetime CN1258042C (en) | 2001-05-10 | 2001-07-05 | Cross-flow fan and air conditioner using cross-flow fan |
| CN01230233U Expired - Lifetime CN2487893Y (en) | 2001-05-10 | 2001-07-05 | Transverse flow fan and air conditioner using transverse flow fan |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011227214A Expired - Lifetime CN1258042C (en) | 2001-05-10 | 2001-07-05 | Cross-flow fan and air conditioner using cross-flow fan |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR100427104B1 (en) |
| CN (2) | CN1258042C (en) |
| MY (1) | MY134061A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102297145A (en) * | 2010-06-22 | 2011-12-28 | 松下电器产业株式会社 | Cross flow fan and air conditioner having the same |
| CN104685299A (en) * | 2012-09-28 | 2015-06-03 | 大金工业株式会社 | Air conditioner |
| CN104302979B (en) * | 2012-04-06 | 2017-04-19 | 三菱电机株式会社 | Indoor unit for air conditioning device |
| US10156376B2 (en) | 2012-09-28 | 2018-12-18 | Daikin Industries, Ltd. | Air conditioner |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332144B (en) * | 2019-07-29 | 2024-08-06 | 宁波奥克斯电气股份有限公司 | Rotating shaft, wind wheel assembly and air conditioner |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990056525A (en) * | 1997-12-29 | 1999-07-15 | 오상수 | Blower unit |
-
2001
- 2001-07-05 MY MYPI20013206 patent/MY134061A/en unknown
- 2001-07-05 CN CNB011227214A patent/CN1258042C/en not_active Expired - Lifetime
- 2001-07-05 CN CN01230233U patent/CN2487893Y/en not_active Expired - Lifetime
- 2001-07-06 KR KR10-2001-0040382A patent/KR100427104B1/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102297145A (en) * | 2010-06-22 | 2011-12-28 | 松下电器产业株式会社 | Cross flow fan and air conditioner having the same |
| CN102297145B (en) * | 2010-06-22 | 2016-04-20 | 松下电器产业株式会社 | Cross flow fan and the air conditioner with this cross flow fan |
| CN104302979B (en) * | 2012-04-06 | 2017-04-19 | 三菱电机株式会社 | Indoor unit for air conditioning device |
| CN104685299A (en) * | 2012-09-28 | 2015-06-03 | 大金工业株式会社 | Air conditioner |
| CN104685299B (en) * | 2012-09-28 | 2016-04-27 | 大金工业株式会社 | Air conditioner |
| US10156376B2 (en) | 2012-09-28 | 2018-12-18 | Daikin Industries, Ltd. | Air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20020086195A (en) | 2002-11-18 |
| CN1385618A (en) | 2002-12-18 |
| CN1258042C (en) | 2006-05-31 |
| KR100427104B1 (en) | 2004-04-17 |
| MY134061A (en) | 2007-11-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20060531 |
|
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20060531 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |