WO2009136585A1 - Cross‑flow fan and air conditioner equipped with same - Google Patents
Cross‑flow fan and air conditioner equipped with same Download PDFInfo
- Publication number
- WO2009136585A1 WO2009136585A1 PCT/JP2009/058448 JP2009058448W WO2009136585A1 WO 2009136585 A1 WO2009136585 A1 WO 2009136585A1 JP 2009058448 W JP2009058448 W JP 2009058448W WO 2009136585 A1 WO2009136585 A1 WO 2009136585A1
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- WIPO (PCT)
- Prior art keywords
- blade
- impeller
- notch
- flow fan
- cross flow
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/007—Ventilation with forced flow
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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
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/02—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal
- F04D17/04—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal of transverse-flow type
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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
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/06—Helico-centrifugal pumps
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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
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
- F04D29/282—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis
- F04D29/283—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis rotors of the squirrel-cage type
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- 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
- F24F1/0025—Cross-flow or tangential fans
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- 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
- F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
- F24F1/0057—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall
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- 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
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
- F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
Definitions
- the present invention relates to a cross flow fan and an air conditioner equipped with the same.
- a crossflow fan is known as a blower used for an indoor unit of a wall-mounted air conditioner.
- FIG. 14 shows an example of a cross flow fan.
- the cross flow fan 104 is a cross-flow fan (cross-flow fan), and includes an impeller 141 constituted by a large number of blades (blades) 142. These blades 142 are so-called forward blades that are inclined so that the outer edges thereof are located on the front side in the rotational direction Z1 of the impeller 141 with respect to the inner edges.
- the air flow X (that is, the conditioned air flow) cooled or heated in the indoor unit 1 in the air conditioner is perpendicular to the rotation axis Z of the impeller 141. It passes through the impeller 141 so as to cross in a plane and is blown into the room.
- FIGS. 15A and 15B are perspective views showing blades of an impeller in such a cross flow fan. As shown in FIGS. 15A and 15B, a plurality of notches 242 b are formed at predetermined intervals on the outer peripheral edge 242 a of the plate-like wing 242. A smooth portion 242c is formed between adjacent notches 242b. As shown in FIG.
- the bottom portion 242 y of the notch 242 b configured as described above extends in a direction substantially perpendicular to both side surfaces of the wing 242.
- the formation of the plurality of notches 242b in the blade 242 reduces the wake vortex (not shown) generated in the blowing region M of the cross flow fan 204, that is, the blade 242 has a simple shape. By making the change, the noise of the cross flow fan 204 can be effectively reduced.
- the air resistance against the rotation of the impeller 241 increases due to the collision of the airflow X in the suction region N of the crossflow fan 204.
- the output of the electric motor that drives the cross flow fan 204 must be increased.
- the present invention has been made in view of such circumstances, and an object of the present invention is to provide a cross flow fan that can suppress an increase in the output of an electric motor that drives the cross flow fan, and an air conditioner including the cross flow fan. There is to do.
- An impeller constituted by a plurality of plate-like blades, and the blade is inclined such that an outer edge of the blade is located in front of an inner edge in a rotation direction of the impeller, and both side surfaces of the blade
- a plurality of notches are formed at predetermined intervals along the rotation axis of the impeller, and connect the bottom of each notch and the pressure surface, and connect the bottom of each notch and the suction surface.
- a black circle with at least one of the negative pressure corners rounded Flow fan is provided.
- the “predetermined interval” may be a constant interval or may be an interval in which the interval is changed depending on the position of the blade in the longitudinal direction.
- the present invention it is possible to adopt a configuration in which the negative pressure corner portion connecting the bottom portion of the notch and the negative pressure surface is rounded. Moreover, in this invention, the structure by which the said pressure corner
- a plurality of support plates positioned on the rotation axis of the impeller, and a plurality of plate-like wings provided on the peripheral edge of the support plate and extending in parallel with the rotation axis.
- the blade is inclined such that the outer edge of the blade is located on the front side of the rotation direction of the impeller with respect to the inner edge, and the rotation direction of the impeller among the both side surfaces of the blade
- a plurality of notches are formed on the outer edge of the blade.
- a cross flow fan which is formed at predetermined intervals along a rotation axis, and a bottom portion of the notch is formed in a curved surface which protrudes generally toward the outer periphery of the impeller.
- the “predetermined interval” may be a constant interval or may be an interval in which the interval is changed depending on the position of the blade in the longitudinal direction.
- the notch has a V shape when viewed from the suction surface and the pressure surface of the blade. According to this configuration, it is possible to ensure the pressure area of the blade as compared with the case where the notch is formed in a rectangular shape.
- an air conditioner provided with the crossflow fan which has the above-mentioned structure is provided.
- the present invention by forming a notch in the outer edge of the wing, noise can be effectively reduced with a simple configuration. Furthermore, at least one of the pressure angle portion and the negative pressure angle portion connecting the bottom portion of the notch to the pressure surface and the negative pressure surface is rounded. Therefore, the air flow flowing into the notch from the outer peripheral side of the blade can smoothly flow into the impeller along the suction surface and the pressure surface. Therefore, it is possible to reduce the collision loss when the air flow flows into the notch from the outer peripheral side of the blade, and as a result, the output of the electric motor that drives the cross flow fan due to the formation of the notch in the blade. Can be suppressed.
- FIG. 5 is a cross-sectional view of the wing taken along line 5-5 in FIG. 4; The perspective view which shows the cross section of a notch. The figure for demonstrating the aspect of the airflow which flows in into a notch. Sectional drawing of the modification of a wing
- Sectional view of yet another variation of the wing (A) (b) The perspective view which shows the other modification of a wing
- the air conditioner according to the present embodiment includes a wall-mounted indoor unit 1, and the indoor unit 1 includes a main body casing 2 and a heat exchanger disposed in the main body casing 2. 3 and a cross flow fan 4 are provided.
- the cross flow fan 4 includes an impeller 41 having plate-like blades (blades) 42, and the impeller 41 is driven by an electric motor (not shown), so that air is sucked from its suction region N. Pump to the blowing area M.
- the air inlet 21 is provided on the upper surface and the front surface (left surface in the drawing) of the main casing 2, and the air outlet 22 is provided on the lower surface of the main casing 2.
- the air outlet 22 is provided with a vertical blade 23 and a horizontal blade 24 for adjusting the direction of air blown from the air outlet 22.
- a guide portion 25 is formed in the vicinity of the blowout region M of the cross flow fan 4 inside the main body casing 2, and this guide portion 25 forms a flow path of air blown out by the cross flow fan 4. Yes.
- the air outlet 22 is formed with a backflow preventing tongue 26.
- the backflow preventing tongue 26 separates the blowing area M and the suction area N to prevent the backflow of the air blown out. .
- the heat exchanger 3 is located between the air inlet 21 and the impeller 41, and includes a front heat exchange unit 3a and a back heat exchange unit 3b.
- the front heat exchange unit 3a is disposed in the vicinity of the front surface in the main body casing 2, and the rear heat exchange unit 3b is connected to the upper end of the front heat exchange unit 3a. It is arranged in the vicinity.
- the impeller 41 of the crossflow fan 4 supports a number of plate-like blades 42 and a plurality of circular supports that support the blades 42 and are located on the rotation axis A ⁇ b> 1 of the impeller 41.
- These support plates 43 are arranged in parallel at predetermined intervals along the rotation axis A1 of the impeller 41, that is, the longitudinal direction of the blades.
- the blade 42 is fixed to the outer peripheral edge 43a of the support plate 43, and is disposed between two adjacent support plates 43 so as to extend in parallel with the rotation axis A1.
- the blade 42 is inclined at a predetermined blade angle so that the outer edge 42a of the blade 42 is located on the front side in the rotation direction Z1 of the impeller 41 with respect to the inner edge 42d. It is a wing. As shown in FIGS. 2 and 3, the side surface located on the front side in the rotation direction Z1 among the both side surfaces of the blade 42 constitutes the pressure surface 42p, and the side surface located on the rear side in the rotation direction Z1 is the suction surface. 42q. Further, the blade 42 is curved so that the outer edge 42a of the blade 42 is positioned on the front side in the rotational direction Z1 of the impeller 41 with respect to the inner edge 42d.
- a plurality of notches 42 b are formed at predetermined intervals along the rotation axis A ⁇ b> 1 of the impeller 41 on the outer edge 42 a of the blade 42. These notches 42b are formed in a V shape when viewed from the suction surface 42q and the pressure surface 42p of the blade 42.
- a basic shape portion 42c having a curved basic shape of the wing 42 is formed between two adjacent notches 42b. The interval between two adjacent notches 42b may be set to a constant value or may be set to a different value. For example, as shown in FIGS.
- the end 6a of the blade 42 in the rotation axis A1 is in the vicinity of the support plate 43, the end 6a is more than the center 6b of the blade 42 in the rotation axis A1.
- the flow velocity of the air flow X flowing through the In the present embodiment the interval between the notches 42 b in the end portion 6 a of the blade 42 is set to be larger than the interval between the notches 42 b in the central portion 6 b of the blade 42. Thereby, the pressure area of the edge part 6a of the wing
- the notches 42b may all be formed in the same size, but may be formed in different sizes depending on the position on the rotation axis A1.
- the notch 42b of the end portion 6a of the blade 42 in the rotation axis A1 is formed to be smaller than the notch 42b of the central portion 6b of the blade 42 in the rotation axis A1. Thereby, the pressure area of the edge part 6a of the wing
- notches 42b are formed at predetermined intervals on the outer edge 42a of the blade 42, and a plurality of basic shape portions 42c are formed between the notches 42b. For this reason, the wake vortex (not shown) generated in the blowing region M of the cross flow fan 4 can be reduced, and noise can be effectively reduced with a simple configuration.
- the notch 42b is formed in a V shape when viewed from the negative pressure surface 42q and the pressure surface 42p of the blade 42, the pressure area of the blade 42 can be secured as compared with the case where the notch 42b is formed in a rectangular shape. it can.
- FIG. 5 is a cross-sectional view of the wing 42 taken along line 5-5 of FIG. 4, and FIG. 6 is a perspective view showing a cross-section of the notch 42b.
- the negative pressure angle portion 42m that connects the bottom portion 42y of the notch 42b and the negative pressure surface 42q
- the pressure angle that connects the bottom portion 42y of the notch 42b and the pressure surface 42p. Both portions 42n are rounded.
- the bottom 42y extending in the direction substantially perpendicular to the suction surface 42q of the blade 42 at the notch 42b and the suction surface 42q are smoothly connected by the negative pressure angle portion 42m.
- a bottom 42y extending in a direction substantially perpendicular to the pressure surface 42p of the blade 42 in the notch 42b and the pressure surface 42p are smoothly connected by a pressure angle portion 42n.
- the length of the bottom portion 42y extending in a direction substantially perpendicular to the pressure surface 42p and the negative pressure surface 42q is shorter than the length of the bottom portion 242y of the conventional notch 242b (see FIG. 16).
- the negative pressure corner portion 42m and the pressure corner portion 42n are rounded to form a smooth curved surface, as shown in FIG. 7, the negative pressure corner portion 42m and the pressure corner portion 42n flow into the notch 42b from the outer peripheral side of the blade 42.
- the air flow X can smoothly flow into the impeller 41 along the negative pressure surface 42q and the pressure surface 42p. As a result, it is possible to reduce the collision loss when the airflow X flows from the outer peripheral side of the blade 42 into the notch 42b.
- the following effects can be obtained. (1) Since the pressure angle portion 42n and the negative pressure angle portion 42m that connect the bottom portion 42y of the notch 42b, the pressure surface 42p, and the negative pressure surface 42q, respectively, are rounded to form a smooth curved surface. The air flow X flowing from the outer peripheral side of the blade 42 into the notch 42b can smoothly flow into the impeller 41 along the negative pressure surface 42q and the pressure surface 42p. Accordingly, it is possible to reduce the collision loss when the airflow X flows from the outer peripheral side of the blade 42 into the notch 42b.
- the air conditioner since the notch 42b is formed in a V shape when viewed from the suction surface 42q and the pressure surface 42p of the blade 42, the pressure area of the blade 42 can be secured.
- the air conditioner since the air conditioner includes the cross flow fan 4 that can obtain the effects (1) and (2), the same effects as the above (1) and (2) can be obtained. it can.
- both the negative pressure angle portion 42m and the pressure angle portion 42n are rounded.
- the present invention is not limited to this, and only one of the negative pressure corner portion 42m and the pressure corner portion 42n may be rounded.
- FIG. 8 shows a configuration in which only the negative pressure angle portion 42m is rounded.
- FIG. 9 shows a configuration in which only the pressure corner portion 42n is rounded. Even if it does in this way, it can suppress the increase in the output of the electric motor which drives the crossflow fan 4 resulting from notch being formed in the blade
- the bottom 42y of the notch 42b may be formed in a smooth curved surface that protrudes generally toward the outer periphery. According to such a configuration, the airflow X flowing into the notch 42b from the outer peripheral side of the blade 42 can flow more smoothly into the impeller 41 along the negative pressure surface 42q or the pressure surface 42p. Therefore, it is possible to further reduce the collision loss when the airflow X flows into the notch 42b from the outer peripheral side of the blade 42, and more efficiently suppress the increase in the output of the electric motor that drives the crossflow fan 4. be able to.
- the notch 42b is formed in a V shape when viewed from the suction surface 42q and the pressure surface 42p of the blade 42, but may not be configured in this manner.
- the notch 42b may be formed to have a rectangular shape when viewed from the suction surface 42q and the pressure surface 42p of the blade 42.
- a sectional view taken along line 5-5 of FIG. 12 is the same as FIG.
- the notch 42b is formed in a rectangular shape in this way, the bottom 42y of the notch 42b may be formed in a curved surface that protrudes entirely toward the outer periphery of the impeller 41.
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Abstract
Description
また、本発明において、前記切欠の底部と前記圧力面とを接続する前記圧力角部には丸みが付けられている構成を採用することができる。 In the present invention, it is possible to adopt a configuration in which the negative pressure corner portion connecting the bottom portion of the notch and the negative pressure surface is rounded.
Moreover, in this invention, the structure by which the said pressure corner | angular part which connects the bottom part of the said notch and the said pressure surface is rounded is employable.
同構成によれば、切欠が矩形に形成された場合に比し、翼の圧力面積を確保することができる。 In the present invention, it is preferable that the notch has a V shape when viewed from the suction surface and the pressure surface of the blade.
According to this configuration, it is possible to ensure the pressure area of the blade as compared with the case where the notch is formed in a rectangular shape.
図1に示すように、本実施形態に係る空気調和機は、壁掛け型の室内ユニット1を備えており、この室内ユニット1は、本体ケーシング2、本体ケーシング2内に配設された熱交換器3及びクロスフローファン4を備えている。クロスフローファン4は、板状の翼(羽根)42を有する羽根車41を備えており、この羽根車41は、電動モータ(不図示)によって駆動されることにより、空気をその吸い込み領域Nから吹き出し領域Mへ圧送する。 Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
As shown in FIG. 1, the air conditioner according to the present embodiment includes a wall-mounted
(1)切欠42bの底部42yと圧力面42p及び負圧面42qとをそれぞれ接続する圧力角部42nと負圧角部42mとは、丸みが付けられることにより滑らかな曲面に形成しているため、翼42の外周側から切欠42bへ流入する空気流Xが負圧面42q及び圧力面42pに沿って羽根車41内へスムーズに流入することができる。従って、翼42の外周側から空気流Xが切欠42bへ流入する際の衝突損失を低減することができる。その結果、翼42に切欠が形成されることに起因してクロスフローファン4を駆動する電動モータの出力の増大を抑制することができる。特に、本実施形態においては、負圧角部42m及び圧力角部42nの双方に丸みが付けられているため、翼42の外周側から空気流Xが流入する際の衝突損失を効果的に低減することができ、クロスフローファン4を駆動する電動モータの出力の増大を効率的に抑制することができる。 According to the
(1) Since the
本実施形態において空気調和機は、上記(1)、(2)の効果を得ることができるクロスフローファン4を備えているため、上記(1)、(2)と同様の効果を得ることができる。 (2) Since the
In this embodiment, since the air conditioner includes the
Claims (6)
- 羽根車の回転軸線上に位置する複数の支持板と、前記支持板の周縁部に設けられ、前記回転軸線と平行に延びる複数の板状の翼とによって構成された羽根車を備え、前記翼は同翼の外側縁が内側縁よりも前記羽根車の回転方向の前側に位置するように傾斜し、前記翼の両側面のうち前記羽根車の回転方向の前側に位置する側面は圧力面を構成し、前記回転方向の後側に位置する側面は負圧面を構成するクロスフローファンにおいて、
前記翼の外側縁には、複数の切欠が前記羽根車の回転軸線に沿って所定間隔で形成され、
前記各切欠の底部と前記圧力面とを接続する圧力角部、及び前記各切欠の底部と前記負圧面とを接続する負圧角部の少なくとも一方に丸みが付けられている
ことを特徴とするクロスフローファン。 An impeller comprising a plurality of support plates positioned on a rotation axis of the impeller and a plurality of plate-like blades provided at a peripheral portion of the support plate and extending in parallel with the rotation axis; Is inclined such that the outer edge of the blade is located on the front side in the rotational direction of the impeller relative to the inner edge, and the side surface located on the front side in the rotational direction of the impeller of both side surfaces of the blade is a pressure surface. The cross flow fan in which the side surface located on the rear side in the rotational direction constitutes a suction surface,
A plurality of notches are formed in the outer edge of the blade at predetermined intervals along the rotation axis of the impeller,
At least one of a pressure angle portion connecting the bottom portion of each notch and the pressure surface and a negative pressure angle portion connecting the bottom portion of each notch and the suction surface is rounded. Cross flow fan. - 前記切欠の底部と前記負圧面とを接続する前記負圧角部には丸みが付けられている
ことを特徴とする請求項1に記載のクロスフローファン。 The crossflow fan according to claim 1, wherein the negative pressure angle portion connecting the bottom portion of the notch and the negative pressure surface is rounded. - 前記切欠の底部と前記圧力面とを接続する前記圧力角部には丸みが付けられている
ことを特徴とする請求項1または請求項2に記載のクロスフローファン。 The cross flow fan according to claim 1 or 2, wherein the pressure corner portion connecting the bottom portion of the notch and the pressure surface is rounded. - 羽根車の回転軸線上に位置する複数の支持板と、前記支持板の周縁部に設けられ、前記回転軸線と平行に延びる複数の板状の翼とによって構成された羽根車を備え、前記翼は同翼の外側縁が内側縁よりも前記羽根車の回転方向の前側に位置するように傾斜し、前記翼の両側面のうち前記羽根車の回転方向の前側に位置する側面は圧力面を構成し、前記回転方向の後側に位置する側面は負圧面を構成するクロスフローファンにおいて、
前記翼の外側縁には、複数の切欠が前記羽根車の回転軸線に沿って所定間隔で形成され、
前記切欠の底部は、前記羽根車の外周に向かって全体的に突出する曲面に形成されている
ことを特徴とするクロスフローファン。 An impeller comprising a plurality of support plates positioned on a rotation axis of the impeller and a plurality of plate-like blades provided at a peripheral portion of the support plate and extending in parallel with the rotation axis; Is inclined such that the outer edge of the blade is located on the front side in the rotational direction of the impeller relative to the inner edge, and the side surface located on the front side in the rotational direction of the impeller of both side surfaces of the blade is a pressure surface. The cross flow fan in which the side surface located on the rear side in the rotational direction constitutes a suction surface,
A plurality of notches are formed in the outer edge of the blade at predetermined intervals along the rotation axis of the impeller,
The cross flow fan, wherein the bottom of the notch is formed in a curved surface that protrudes generally toward the outer periphery of the impeller. - 前記切欠は、前記翼の負圧面及び圧力面から見てV字状を成す
ことを特徴とする請求項1乃至請求項4のいずれか一項に記載のクロスフローファン。 The cross flow fan according to any one of claims 1 to 4, wherein the notch has a V shape when viewed from a suction surface and a pressure surface of the blade. - 請求項1乃至請求項5のいずれか一項に記載のクロスフローファンを備えることを特徴とする空気調和機。 An air conditioner comprising the crossflow fan according to any one of claims 1 to 5.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020107023472A KR101233538B1 (en) | 2008-05-09 | 2009-04-30 | Cross-flow fan and air conditioner equipped with same |
CN2009801127280A CN101999044B (en) | 2008-05-09 | 2009-04-30 | Cross flow fan and air conditioner equipped with same |
US12/937,833 US20110033306A1 (en) | 2008-05-09 | 2009-04-30 | Cross-flow fan and air conditioner equipped with same |
EP09742709.0A EP2280176B1 (en) | 2008-05-09 | 2009-04-30 | Cross flow fan and air conditioner equipped with same |
ES09742709T ES2784543T3 (en) | 2008-05-09 | 2009-04-30 | Cross-flow fan and air conditioner equipped with it |
AU2009245176A AU2009245176B2 (en) | 2008-05-09 | 2009-04-30 | Cross-flow fan and air conditioner equipped with same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008123449A JP4371171B2 (en) | 2008-05-09 | 2008-05-09 | Cross flow fan and air conditioner equipped with the same |
JP2008-123449 | 2008-05-09 |
Publications (1)
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WO2009136585A1 true WO2009136585A1 (en) | 2009-11-12 |
Family
ID=41264640
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2009/058448 WO2009136585A1 (en) | 2008-05-09 | 2009-04-30 | Cross‑flow fan and air conditioner equipped with same |
Country Status (8)
Country | Link |
---|---|
US (1) | US20110033306A1 (en) |
EP (1) | EP2280176B1 (en) |
JP (1) | JP4371171B2 (en) |
KR (1) | KR101233538B1 (en) |
CN (1) | CN101999044B (en) |
AU (1) | AU2009245176B2 (en) |
ES (1) | ES2784543T3 (en) |
WO (1) | WO2009136585A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130330184A1 (en) * | 2012-06-08 | 2013-12-12 | General Electric Company | Aerodynamic element of turbine engine |
JP6044165B2 (en) * | 2012-08-09 | 2016-12-14 | ダイキン工業株式会社 | Multi-blade fan and air conditioner indoor unit including the same |
JP5747888B2 (en) * | 2012-09-28 | 2015-07-15 | ダイキン工業株式会社 | Blower |
US9651057B2 (en) * | 2013-12-19 | 2017-05-16 | Regal Beloit America, Inc. | Blower assembly including a noise attenuating impeller and method for assembling the same |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03210094A (en) * | 1990-01-11 | 1991-09-13 | Matsushita Electric Ind Co Ltd | Cross flow fan |
JPH10252689A (en) * | 1997-03-17 | 1998-09-22 | Mitsubishi Electric Corp | Cross flow fan and cross-flow-fan-mounted air-conditioner |
JPH11141494A (en) * | 1997-11-10 | 1999-05-25 | Daikin Ind Ltd | Impeller structure of multiblade blower |
JP2006125390A (en) | 2004-09-30 | 2006-05-18 | Daikin Ind Ltd | Impeller for blower, and air conditioner using the same |
WO2007037216A1 (en) * | 2005-09-28 | 2007-04-05 | Daikin Industries, Ltd. | Impeller of multiblade blower and method of manufacturing the same |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3403893A (en) * | 1967-12-05 | 1968-10-01 | Gen Electric | Axial flow compressor blades |
NL9301910A (en) * | 1993-11-04 | 1995-06-01 | Stork Prod Eng | Wind turbine. |
JP3127850B2 (en) * | 1997-02-13 | 2001-01-29 | ダイキン工業株式会社 | Impeller for propeller fan |
JP3092554B2 (en) * | 1997-09-30 | 2000-09-25 | ダイキン工業株式会社 | Centrifugal blower, method for manufacturing the same, and air conditioner equipped with the centrifugal blower |
JP4873845B2 (en) * | 2004-10-01 | 2012-02-08 | 三菱電機株式会社 | Air conditioner |
JP4973249B2 (en) * | 2006-03-31 | 2012-07-11 | ダイキン工業株式会社 | Multi-wing fan |
JP4918650B2 (en) * | 2006-06-23 | 2012-04-18 | ダイキン工業株式会社 | Multi-wing fan |
JP4433093B2 (en) * | 2008-05-09 | 2010-03-17 | ダイキン工業株式会社 | Cross flow fan and air conditioner equipped with the same |
KR101313420B1 (en) * | 2009-03-10 | 2013-10-01 | 다이킨 고교 가부시키가이샤 | Crossflow fan and air conditioner provided with same |
-
2008
- 2008-05-09 JP JP2008123449A patent/JP4371171B2/en active Active
-
2009
- 2009-04-30 US US12/937,833 patent/US20110033306A1/en not_active Abandoned
- 2009-04-30 EP EP09742709.0A patent/EP2280176B1/en active Active
- 2009-04-30 WO PCT/JP2009/058448 patent/WO2009136585A1/en active Application Filing
- 2009-04-30 CN CN2009801127280A patent/CN101999044B/en active Active
- 2009-04-30 AU AU2009245176A patent/AU2009245176B2/en active Active
- 2009-04-30 KR KR1020107023472A patent/KR101233538B1/en active IP Right Grant
- 2009-04-30 ES ES09742709T patent/ES2784543T3/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03210094A (en) * | 1990-01-11 | 1991-09-13 | Matsushita Electric Ind Co Ltd | Cross flow fan |
JPH10252689A (en) * | 1997-03-17 | 1998-09-22 | Mitsubishi Electric Corp | Cross flow fan and cross-flow-fan-mounted air-conditioner |
JPH11141494A (en) * | 1997-11-10 | 1999-05-25 | Daikin Ind Ltd | Impeller structure of multiblade blower |
JP2006125390A (en) | 2004-09-30 | 2006-05-18 | Daikin Ind Ltd | Impeller for blower, and air conditioner using the same |
WO2007037216A1 (en) * | 2005-09-28 | 2007-04-05 | Daikin Industries, Ltd. | Impeller of multiblade blower and method of manufacturing the same |
Non-Patent Citations (1)
Title |
---|
See also references of EP2280176A4 |
Also Published As
Publication number | Publication date |
---|---|
EP2280176A4 (en) | 2016-10-26 |
AU2009245176B2 (en) | 2011-08-11 |
ES2784543T3 (en) | 2020-09-28 |
JP2009270530A (en) | 2009-11-19 |
KR20100135831A (en) | 2010-12-27 |
EP2280176B1 (en) | 2020-01-22 |
JP4371171B2 (en) | 2009-11-25 |
EP2280176A1 (en) | 2011-02-02 |
AU2009245176A1 (en) | 2009-11-12 |
CN101999044B (en) | 2012-10-17 |
US20110033306A1 (en) | 2011-02-10 |
KR101233538B1 (en) | 2013-02-14 |
CN101999044A (en) | 2011-03-30 |
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