WO2004109118A1 - Fan - Google Patents
Fan Download PDFInfo
- Publication number
- WO2004109118A1 WO2004109118A1 PCT/KR2004/001285 KR2004001285W WO2004109118A1 WO 2004109118 A1 WO2004109118 A1 WO 2004109118A1 KR 2004001285 W KR2004001285 W KR 2004001285W WO 2004109118 A1 WO2004109118 A1 WO 2004109118A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fan
- hub
- blade
- rotation shaft
- blades
- Prior art date
Links
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
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/38—Blades
- F04D29/384—Blades characterised by form
-
- 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
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
- F04D29/329—Details of the hub
Definitions
- the present invention relates to a fan for a home appliance, such as an air conditioner, or other manufacturing equipment.
- a home appliance such as an air conditioner, or other manufacturing equipment.
- fans are used in home appliances, such as air conditioners, or ventilating systems for manufacturing equipment.
- air conditioners air conditioners
- centrifugal fans in the fans depending on air flow characteristics.
- the axial fan with an air flow parallel to a rotation shaft, has a high flow rate, but is at a low pressure.
- the centrifugal fan has an air flow in a direction of the rotation shaft at an inlet to blades where the air is introduced into the fan, the centrifugal fan has an air flow in a radial direction, a direction perpendicular to the rotation shaft, at an outlet from the blades. Because a purpose of the centrifugal fan is a pressure increase by centrifugal force, the centrifugal fan has a low flow rate, and a high pressure.
- a suitable fan is employed taking the characteristics of the fans into account.
- a centrifugal fan such as a sirocco fan or a turbo fan, is employed. Since a purpose of a ventilating system is discharge of a large quantity of air within a short time period, the axial fan is mostly employed, which can provide a high flow rate.
- the fans have their own characteristics, it is difficult to increase both the flow rate and air pressure at the same time. Therefore, if a fan is required, which meets requirements of high flow rate and high pressure, it is required to increase a size of the fan. In a case of the home appliance, the size increase of the fan increases an overall size of a product, to cause a limitation of a mounting position in the system.
- the air conditioning fan has the blades overlapped with one another and continuous, fabrication of the fan is difficult by using a general injection molding, to require a special extrusion molding, that is unfavorable for mass production.
- An object of the present invention designed to solve the foregoing problem is to provide a fan, of which fabrication is easy so as to be favorable for mass production, and which has an axial air flow direction, and can provide a high air flow rate and a high air pressure at the same time.
- a fan including a rotation shaft rotatably coupled to a driving motor, a cylindrical hub fixed to the rotation shaft, a plurality of helical blades on an outside circumferential surface of the hub, and partition lines each connecting a top end of the blade to a bottom end of an adjacent blade formed in the outside circumferential surface at a time of injection molding with molds.
- the partition line is a straight line connecting an outer edge of the top end of the blade to an inner edge of the bottom end of an adjacent blade.
- the partition line connects an outer edge of the top end of the blade to an inner edge of the bottom end of an adjacent blade.
- the partition line includes a first horizontal part straightly extended from the inner edge of the top end of the blade in a horizontal direction, a second horizontal part straightly extended from an inner edge of a bottom end of an adjacent blade in a horizontal direction, and a vertical part connected between the first, and second horizontal parts.
- a fan including a rotation shaft rotatably coupled to a driving motor, a cylindrical hub fixed to the rotation shaft, a plurality of helical blades formed on an outside circumferential surface of the hub such that the blades do not overlap with one another when the blades are seen from a direction of the rotation shaft.
- a top end of the blade and a bottom end of an adjacent blade are spaced a distance away from each other in a circumferential direction of the hub.
- the blade is extended from the outside circumferential surface of the hub with a fixed radius of curvature.
- the blade has the radius of curvature of the bottom end formed different from the radius of curvature of the top end, particularly, the blade has the radius of curvature of the bottom end formed greater than the radius of curvature ofthe top end.
- the hub has an opened top and an opened bottom.
- An angle a side edge of the blade forms becomes the greater as it goes from the bottom of the hub to the top of the hub the farther.
- the blade has an exit
- the blade has an inlet
- a ratio t : t D of thickness of the hub to the blade is 1 : 1.5, and the blade has a thickness formed the thinner as the blade is extended from the outside circumferential surface of the hub the farther.
- a ratio of a diameter Dh of the hub to a diameter Db of a circle a rotation a locus of the blade forms is 0.4 ⁇ 0.8, and more preferably, 0.6.
- the hub has a plurality of helical blades on an inside circumferential surface of the hub.
- the top end of the blade is extended beyond the top end of the hub, and the bottom end of the blade is extended beyond the bottom end of the hub.
- the blade is extended from the outside circumferential surface of the hub in a normal line direction, or the rotation shaft is fixed only to a lower part of the hub, and the lower part of the hub is formed thicker than the upper part of the hub for suppression of vibration.
- the rotation shaft includes a plurality of hubs fixed thereto at regular intervals, each having a plurality of blades formed thereon.
- the hub has the upper part and the lower part each shortened by a length, such that a vertical length Lh of the hub is shorter than a vertical length Lb of the blade.
- a ratio of the vertical length Lh of the hub to the vertical length Lb of the blade is preferably 4:6.
- the upper part and the lower part of the hub preferably have lengths reduced by the same amount.
- the hub includes a connection plate inside of the hub having a top end of the rotation shaft fixed thereto, and the connection plate includes a plurality of radial reinforcing ribs provided thereto.
- the reinforcing ribs are preferably symmetry with respect to the connection plate in up/down direction.
- connection plate includes a metal bushing provided to a center of the connection plate to surround the rotation shaft, and the lower part of the blade is cut away from an inner edge of the blade in contact with the bottom end of the hub to the side edge of the bottom end.
- the blade has a section changing from an "S" form to an arc form as it goes from the upper part to the lower part of the blades the farther, and the hub includes a connection plate inside of the hub having a top end of the rotation shaft fixed thereto.
- connection plate includes a plurality of radial reinforcing ribs provided thereto, and the reinforcing rib is symmetry with respect to the connection plate in an up/down direction.
- connection plate includes a metal bushing provided to a center of the connection plate to surround the rotation shaft.
- FIG. 1 illustrates a perspective view of a fan in accordance with a first preferred embodiment of the present invention
- FIG. 2 illustrates a diagram of a partition line in a fan of the present invention
- FIG. 3 illustrates a diagram of another form of a partition line of the fan of the present invention
- FIG. 4 illustrates a front view of the fan in FIG. 1;
- FIG. 5 illustrates a plan view of the fan in FIG. 1
- FIG. 6 illustrates a perspective view of a fan in accordance with a second preferred embodiment of the present invention
- FIG. 7 illustrates a front view of a fan in accordance with a third preferred embodiment of the present invention
- FIG. 8 illustrates a perspective view of a fan in accordance with a fourth preferred embodiment of the present invention.
- FIG. 9 illustrates a perspective view of a fan in accordance with a fifth preferred embodiment of the present invention.
- FIG. 10 illustrates a perspective view of a fan in accordance with a sixth preferred embodiment of the present invention.
- FIG 11 illustrates a perspective view of a fan in accordance with a seventh preferred embodiment of the present invention
- FIG. 12 illustrates a perspective view of a fan in accordance with an eighth preferred embodiment of the present invention
- FIG 13 illustrates a front view of a fan in FIG. 12
- FIG 14 illustrates a perspective view of a fan in accordance with a ninth preferred embodiment of the present invention
- FIG. 15 illustrates a diagram of structure of the fan in FIG. 14;
- FIG. 16 illustrates a plan view of the fan in FIG. 14.
- FIG 17 illustrates a graph showing comparison of noise measurement results of the fan in the eighth embodiment, and the fan in the ninth embodiment.
- FIG. 1 illustrates a perspective view of a fan in accordance with a first preferred embodiment of the present invention.
- the fan includes a rotation shaft 1 rotatably coupled to a driving motor (not shown), a cylindrical hub 2 fixed to the rotation shaft 1, and one pair of helical blades 3 on an outside circumferential surface of the hub 2.
- the blades 3 are formed not to have overlapped portion with each other when seen from a direction of the rotation shaft 1. For this, a top end 3b of one of the blades 3 and a bottom end 3a of an adjacent blades 3 are spaced a distance in a circumferential direction, or formed on the same vertical line when seen from a side of the hub 2.
- the two blades 3 are formed on the divided halves of the hub 2 respectively, to enable injection molding of the hub 2 with an upper mold and a lower mold (not shown).
- the bottom end 3 a of the hub 3 is a part where air introduced into the blade 3 passes at a first time
- the top end 3b of the blade 3 is a part where the air passes as the air is discharged from the blade 3.
- the blade 3 extends from an outside circumference of the hub 2 with a fixed radius of curvature, to have a semicircular curved form.
- the radius of curvature of the top end 3b of the blade 3 is different from the radius of curvature of the bottom end 3 a, for smooth flow of air, and, particularly, it is preferable that the radius of curvature of the bottom end 3 a is greater than the radius of curvature of the top end 3b.
- the bottom end 3 a of the blade with a greater radius of curvature enables smooth entrance of air
- the bottom end 3 a of the blade with a smaller radius of curvature enables to increase both the air pressure and the air flow rate because the air is discharged, with the air gathered.
- the blade 3 may have a variety of forms, such as blade 3 extends on a straight line from the outside circumferential surface of the hub 3.
- Unexplained reference symbols 3c and 3d denote an inside surface and an outside surface of the blade 3, respectively.
- the hub 2 has opened top and bottom. Therefore, because the air entering into the bottom of the fan is guided to the top of the fan along, not only the blades 3, but also an inside of the hub 2, the fan can have a high air flow rate. Of course, depending on an environment and conditions the fan is applied thereto, the top and the bottom of the hub 2 may be closed.
- the hub 2 has four ribs 4 inside thereof at 90° intervals fixed to inside
- the hub 2 has a partition line 5 in the outside surface thereof connected between the top end 3b of one of the blades and the bottom end 3 a of an adjacent blade.
- the partition line 5 is formed in the outside circumferential surface of the hub 2 when the hub 2 is injection molded with the upper and lower molds.
- the partition line 5 will be described in more detail.
- FIG. 2 illustrates a diagram of a partition line in a fan of the present invention.
- the partition line 5 connects an outside surface 3d of the top end of one of the blades and an inside surface 3c of the bottom end of an adjacent blade.
- the outside surface 3d of the top end of one of the blades and an inside surface 3c of the bottom end of an adjacent blade are positioned at the same vertical line.
- the partition line 5 is a straight line.
- FIG. 3 illustrates a diagram of another form of a partition line of the fan of the present invention.
- the partition line may also be formed to connect the inside surface 3c of the top end of one of the blades to the inside surface 3c of the bottom end of an adjacent blade.
- top end 3b of one of the blades and the bottom end 3 a of an adjacent blade are spaced a distance in a circumferential direction of the hub 2.
- the partition line connecting the top end 3b of one of the blades and the bottom end 3a of an adjacent blade forms, no straight line, but a 'Z' form, substantially.
- the partition line 5 has a first horizontal part 5 a straightly extended from the inside surface 3c of the top end of one of the blades horizontally, a second horizontal part 5b straightly extended from the inside surface 3c of the bottom end of an adjacent blade horizontally, and a vertical part 5c connected between the first, and second horizontal parts 5 a, and 5b.
- FIG. 4 illustrates a front view of the fan in FIG. 1. Referring to FIG. 4, an angle a side edge 3e of one of the blades forms is formed such that the angle becomes the greater as it goes from the bottom of the hub 2 to the top of the hub 2 for improvement of flow characteristics.
- the blade 3 is formed
- the inlet angle ⁇ i is an angle a tangential line to the edge 3e of the blade and
- the exit angle ⁇ e is an angle a tangential line to the edge 3e of the blade and a horizontal line form at the part where the air exits.
- the inlet angle ⁇ i denotes an entering angle of the air entering into the bottom
- the exit angle ⁇ e denotes an exit angle of the air leaving from the top end 3b of the blade. It is preferable that the inlet angle ⁇ i is 35°.
- the inlet angle ⁇ i is 35°
- the noise of the fan is around 31dB, and is around 36dB at the other angles. This is because a stream line of the entering air is almost the same with the inlet angle ⁇ i in a case the inlet angle ⁇ i is around 35°, to minimize formation of turbulence.
- FIG. 5 illustrates a plan view of the fan in FIG. 1.
- the hub 2 and the blade 3 have certain thickness t , and tb influencing to a vibration characteristic of the fan. That is, vibration of the fan varies with the thickness t h , and t b , especially a thickness ratio t h : tb, of the hub 2 and the blade 3.
- the thickness ratio t h : t b of the hub 2 and the blade 3 has a great influence to the vibration characteristics of the fan.
- the vibration characteristics of the fan are the best when thickness ratio t h : t b , of the hub 2 and the blade 3 is 1 : 1.5.
- the blade 3 is formed such that the thickness t b becomes the thinner as the blade is extended from the outside surface of the hub 2 the farther.
- Such a blade structure shifts a center of gravity of the blade 3 inward, to reduce a moment generated at the time of rotation of the fan, and consequently, to reduce the vibration of the fan.
- the fan of the present invention is fabricated to have a hub ratio Dh/Db of 0.4 ⁇ 0.8 so that the fan provides a high air flow rate and a high air pressure, more preferably, 0.6.
- the hub ratio Dh/Db is a ratio of a diameter Dh of the hub 2 to a diameter Db of a circle of a rotation locus of the blade 3.
- FIG 6 illustrates a perspective view of a fan in accordance with a second preferred embodiment of the present invention.
- the fan includes a hub 22 with opened top and bottom, and two pairs of helical blades 23, and 24 on an inside circumferential surface and an outside circumferential surface of the hub 22.
- the blades 24 on the inside circumferential surface of the hub 22 are formed not to overlap with each other when seen from a direction of the rotation shaft 21. According to this, since the fan blows air, not only with the blades 23 on the outside circumferential surface of the hub 22, but also with the blades 24 on the inside circumferential surface of the hub 22, to blow air through the inside of the hub 22 too, the air pressure and the air flow rate increase further.
- FIG. 7 illustrates a front view of a fan in accordance with a third preferred embodiment of the present invention.
- the fan includes a hub 32, a rotation shaft 31, and one pair of helical blades 33 on an outside circumferential surface of the hub 32.
- FIG. 8 illustrates a perspective view of a fan in accordance with a fourth preferred embodiment of the present invention.
- the fan includes three blades 43a, 43b, and 43c on an outside circumferential surface of the hub 42 at 120° intervals for increasing an air flow rate.
- the blades 43 a, 43b, and 43 c are helical, and formed on an outside circumferential surface of the hub 42 without overlap with one another when seen from a direction of the rotation shaft 41. Since the three blades 43 a,
- the fan requires three molds for injection molding.
- the fan of the present invention may be formed to have three or more than three blades, with an increased number of molds for injection mold.
- FIG. 9 illustrates a perspective view of a fan in accordance with a fifth preferred embodiment of the present invention.
- the fan includes blades 53 each extended along a normal line from an outside circumferential surface of the hub 52 to have a great curvature, such that the hub 52 and the blades 53 have a form of 'an eye of a typhoon' when seen from a direction of a rotation shaft 51.
- this fan structure enables to increase areas of the blades 53 while keeping a rotation locus of the blades 53 the same, an air flow rate of the fan is increased.
- the blades do not overlap with each other when seen from the direction of the rotation shaft 51.
- FIG. 10 illustrates a perspective view of a fan in accordance with a sixth preferred embodiment of the present invention.
- the fan includes a rotation shaft 61, and one pair of helical blades 63 on an outside circumference of a hub 62.
- the rotation shaft 61 fixed only to a bottom of the hub 62.
- This structure enables easy fabrication of the fan, and reduces an installation space since no structure for fixing a top end of the rotation shaft 61 is required.
- the fan is liable to cause heavy vibration during rotation because the rotation shaft hold only the bottom of the hub 62. Therefore, it is preferable that a lower part of the hub 62 is thick, and an upper part of the hub 62 is thin, to lower a center of gravity of the hub for suppressing the vibration.
- FIG. 11 illustrates a perspective view of a fan in accordance with a seventh preferred embodiment of the present invention.
- the fan includes a rotation shaft 71, two hubs 73, and 76 fixed to the rotation shaft 71, and helical blades 74, and 77 on the hubs 73, and 76 formed not overelap with each other, respectively.
- the fan has two staged hub in which two hubs 73, and 76 are mounted in an up/down direction spaced a distance away from each other. It is preferable that the hubs 73, and 76, and the blades 74, and 77 have the same structure. However, it is apparent that forms and the like of the blades 74, and 77 and the hubs 73, and 76 may be changed as required.
- FIG. 12 illustrates a perspective view of a fan in accordance with an eighth preferred embodiment of the present invention
- FIG. 13 illustrates a front view of a fan in FIG. 12.
- the fan includes a hollow hub 82, and one pair of blades 83 on an outside circumferential surface of the hub 82 so as not to overlap with each other.
- the hub 82 has a length having certain lengths reduced from an upper part and a lower part respectively, such that a vertical length of the hub Lh is shorter than a vertical length Lb of the blade.
- the hub 82 also has a connection plate
- a ratio of the vertical length Lh of the hub 82 to the vertical length Lb of the blade 83 is 4:6.
- lengths of the upper part and the lower part of the hub 82 are shortened by the same lengths, to make length differences between the top and bottom ends of the hub 82 and the top and bottom ends of the blade 83 are the same.
- the fan has such a hub 82 having the upper part and the lower part shortened thus, the air introduced from the lower part of the hub 82 comes into contact with the blades 83 at first, and moves along outside circumferences of the blades 33 and the hub 82, to reduce an amount of air flowing toward and inner space of the hub
- FIG 14 illustrates a perspective view of a fan in accordance with a ninth preferred embodiment of the present invention
- FIG. 15 illustrates a diagram of structure of the fan in FIG. 14
- FIG. 16 illustrates a plan view of the fan in FIG. 14.
- the fan includes a hollow hub 92, and one pair of blades 93 on an outside circumferential surface of the hub 92 not to overlap with each other.
- the hub 92 has a form having the upper part and the lower part thereof reduced by certain lengths respectively.
- the hub 92 also has a connection plate 94 inside thereof for fixing a top end of the rotation shaft 91 coupled to a driving motor 97.
- the connection plate 94 has a part in contact with an inside surface of the hub 92 curved upward for strengthening.
- connection plate 94 also has a plurality of reinforcing ribs 95 formed in a radial direction from the connection plate 94, for further increasing a strength of the connection plate 94.
- the reinforcing rib 95 is symmetry with respect to an upper surface and a lower surface of the connection plate 94.
- connection plate 94 at a center of the connection plate 94 having the top end of the rotation shaft 91 fixed thereto.
- the bushing 96 prevents the rotation shaft 91 from coming into direct contact with the connection plate 94, to prevent wear down of the connection plate 94 caused by fast rotation, and to enable the connection plate 94 to hold the rotation shaft 91, securely.
- the bushing 96 may be fixed to the connection plate 94 by insert injection molding. Or course, the bushing 96 may be fixed to the connection plate 94 by a separate bracket (not shown) and the like, or press fit.
- the blade 93e of the bottom end in a straight line, to form a pointed triangular lower part of the blade 93, substantially.
- the blade 93 changes from an "S" form to a simple arc.
- FIG. 17 illustrates a graph showing comparison of noise measurement results of the fans of the eighth embodiment, and the ninth embodiment.
- the ninth embodiment fan since the ninth embodiment fan has the inner side of the lower part of the blade 93 that generates turbulence noise while supplying no energy to the fluid actually cut away, the ninth embodiment fan can reduce noise lower than the eighth embodiment when the fan is rotated.
- the fan of the present invention has been described embodiment by embodiment with reference to the attached drawing. However, it is apparent that by combining features of the embodiments of the fan appropriately, the fan may be embodied to have an optimum performance.
- the fan of the present invention is designed to be suitable to an indoor unit of an air conditioner, the fan can be applicable to all systems that require air flow in the same or similar fashion.
- the fan of the present invention has the following advantages.
- the fan of the present invention has helical blades on an outside circumferential surface of a hub without overlap with each other, thereby enabling injection molding with molds, to permit easy fabrication, mass production in a various, and complicate forms.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200480019389.9A CN1820146B (en) | 2003-06-04 | 2004-05-31 | Fan |
EP04735529A EP1629206B1 (en) | 2003-06-04 | 2004-05-31 | Fan |
JP2006508533A JP2006526734A (en) | 2003-06-04 | 2004-05-31 | Blower fan |
DE602004019912T DE602004019912D1 (en) | 2003-06-04 | 2004-05-31 | FAN |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2003-0035879 | 2003-06-04 | ||
KR10-2003-0035879A KR20030094110A (en) | 2002-06-05 | 2003-06-04 | Total service supporting system for employees and method thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004109118A1 true WO2004109118A1 (en) | 2004-12-16 |
Family
ID=36919495
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2004/001285 WO2004109118A1 (en) | 2003-06-04 | 2004-05-31 | Fan |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP2006526734A (en) |
CN (1) | CN1820146B (en) |
WO (1) | WO2004109118A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006078083A2 (en) * | 2005-01-24 | 2006-07-27 | Lg Electronics Inc. | Air conditioner |
KR100794644B1 (en) * | 2005-11-01 | 2008-01-14 | 엘지전자 주식회사 | Air Conditioner |
US9714664B2 (en) | 2011-10-17 | 2017-07-25 | Honda Motor Co., Ltd. | Method for manufacturing impeller |
FR3130524A1 (en) * | 2021-12-20 | 2023-06-23 | Seb S.A. | STYLING DEVICE INCLUDING AN IMPROVED BLOWER MODULE WITH CONTRAROTIVE PROPELLERS |
FR3130525A1 (en) * | 2021-12-20 | 2023-06-23 | Seb S.A. | STYLING DEVICE COMPRISING AN IMPROVED BLOWER MODULE WITH CONTRAROTIVE PROPELLERS AND INTERPOSED POROUS MEDIA |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5542070B2 (en) * | 2011-01-24 | 2014-07-09 | ツインバード工業株式会社 | Blower |
JP5845498B2 (en) * | 2011-05-13 | 2016-01-20 | 特定非営利活動法人 地域再生機構 | Ultra-low head type ultra-low flow type hydroelectric generator |
JP6121740B2 (en) * | 2013-02-13 | 2017-04-26 | 株式会社Ihi | Fan blade manufacturing method and manufacturing apparatus |
JP5717780B2 (en) * | 2013-03-15 | 2015-05-13 | ツインバード工業株式会社 | Blower |
CN103398021A (en) * | 2013-07-20 | 2013-11-20 | 大连理工大学 | Low-speed high-pressure-ratio axial-flow impeller with highly twisted blades having Bezier camber lines |
ITTO20140004U1 (en) * | 2014-01-10 | 2015-07-10 | Johnson Electric Asti S R L | FAN FOR A COOLING ELECTRIC FAN, PARTICULARLY FOR A HEAT EXCHANGER FOR A MOTOR VEHICLE |
KR20150133077A (en) * | 2014-05-19 | 2015-11-27 | 엘지전자 주식회사 | Brower apparatus and air conditioner having the same |
CN109441811A (en) * | 2018-12-26 | 2019-03-08 | 东莞赫升机电有限公司 | Stack rotator type helical-lobe compressor |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6126395A (en) * | 1998-01-30 | 2000-10-03 | Kabushiki Kaisha Copal | Axial fan |
WO2002075159A1 (en) * | 2001-03-15 | 2002-09-26 | Arçelik A.S. | Axial fan |
JP2003039489A (en) * | 2001-07-30 | 2003-02-13 | Daikin Ind Ltd | Propeller fan and manufacturing method therefor |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1532427A (en) * | 2003-03-25 | 2004-09-29 | 乐金电子(天津)电器有限公司 | Screw fan |
-
2004
- 2004-05-31 CN CN200480019389.9A patent/CN1820146B/en not_active Expired - Fee Related
- 2004-05-31 WO PCT/KR2004/001285 patent/WO2004109118A1/en active Application Filing
- 2004-05-31 JP JP2006508533A patent/JP2006526734A/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6126395A (en) * | 1998-01-30 | 2000-10-03 | Kabushiki Kaisha Copal | Axial fan |
WO2002075159A1 (en) * | 2001-03-15 | 2002-09-26 | Arçelik A.S. | Axial fan |
JP2003039489A (en) * | 2001-07-30 | 2003-02-13 | Daikin Ind Ltd | Propeller fan and manufacturing method therefor |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006078083A2 (en) * | 2005-01-24 | 2006-07-27 | Lg Electronics Inc. | Air conditioner |
WO2006078083A3 (en) * | 2005-01-24 | 2007-03-08 | Lg Electronics Inc | Air conditioner |
KR100794644B1 (en) * | 2005-11-01 | 2008-01-14 | 엘지전자 주식회사 | Air Conditioner |
US9714664B2 (en) | 2011-10-17 | 2017-07-25 | Honda Motor Co., Ltd. | Method for manufacturing impeller |
FR3130524A1 (en) * | 2021-12-20 | 2023-06-23 | Seb S.A. | STYLING DEVICE INCLUDING AN IMPROVED BLOWER MODULE WITH CONTRAROTIVE PROPELLERS |
FR3130525A1 (en) * | 2021-12-20 | 2023-06-23 | Seb S.A. | STYLING DEVICE COMPRISING AN IMPROVED BLOWER MODULE WITH CONTRAROTIVE PROPELLERS AND INTERPOSED POROUS MEDIA |
WO2023118682A1 (en) * | 2021-12-20 | 2023-06-29 | Seb S.A. | Hair-styling appliance comprising an improved blower module with counter-rotating fans |
WO2023118683A1 (en) * | 2021-12-20 | 2023-06-29 | Seb S.A. | Hair-styling appliance comprising an improved blower module with counter-rotating fans, and an interposed porous medium |
Also Published As
Publication number | Publication date |
---|---|
CN1820146A (en) | 2006-08-16 |
JP2006526734A (en) | 2006-11-24 |
CN1820146B (en) | 2011-06-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR102582026B1 (en) | Blower and outdoor unit of air conditioner having the same | |
US9869324B2 (en) | Fan, molding die, and fluid feeder | |
WO2004109118A1 (en) | Fan | |
EP1571344B1 (en) | Blower fan | |
EP1923572B1 (en) | Electric blower and electric cleaner using the same | |
US6217285B1 (en) | Impeller for a centrifugal blower | |
JP3812537B2 (en) | Centrifugal blower | |
EP1629206B1 (en) | Fan | |
WO2024051357A1 (en) | Electric motor base, electric motor and high-speed fan | |
CN205639069U (en) | Movable vane, guiding subassembly and axial compressor cabinet -type air conditioner of axial compressor cabinet -type air conditioner | |
US9388823B2 (en) | Centrifugal fan, molding die, and fluid feeder | |
CN218387097U (en) | Motor cabinet, motor and high-speed fan | |
CN208185060U (en) | Axial-flow windwheel, air-conditioner outdoor unit and air conditioner | |
KR100976496B1 (en) | Fan | |
JP6179819B2 (en) | Air conditioner | |
JP6951428B2 (en) | Centrifugal fan, molding mold and fluid feeder | |
KR100546650B1 (en) | Blower | |
CN212204892U (en) | Cross flow fan and cooling device | |
JP6379062B2 (en) | Outdoor unit of air conditioner and bell mouth provided therein | |
CN209689058U (en) | The ducting part and air conditioner indoor unit of air conditioner indoor unit | |
KR100539565B1 (en) | Fan | |
US20090205154A1 (en) | Electric fan | |
CN108397846B (en) | Air conditioning equipment | |
JP3726386B2 (en) | Centrifugal blower | |
CN100414118C (en) | Screw fan combined body |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200480019389.9 Country of ref document: CN |
|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2004735529 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2006508533 Country of ref document: JP Ref document number: 1200501795 Country of ref document: VN |
|
WWP | Wipo information: published in national office |
Ref document number: 2004735529 Country of ref document: EP |