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公开(公告)号：US20190242612A1
公开(公告)日：2019-08-08
申请号：US16325472
申请日：2017-10-30
发明人： Takuya TERAMOTO , Takashi IKEDA , Yasuaki KATO , Ryo HORIE
IPC分类号： F24F13/08 , F24F1/0025 , F24F1/0033
CPC分类号： F24F13/08 , F24F1/00 , F24F1/0025 , F24F1/0033
摘要： An indoor unit according to the present invention includes: an air-sending portion, which includes a casing having a rectangular air outlet and accommodating an impeller including a plurality of blades; a heat exchanger, which is configured to exchange heat with gas sent from the air-sending portion; and a guide portion, which includes an upper guide defining a passage for the gas and being arranged between an upper edge portion of the air outlet and an upper end portion of the heat exchanger and a lower guide defining a passage for the gas and being arranged between a lower edge portion of the air outlet and a lower end portion of the heat exchanger, and is open at side regions of the guide portion.
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12.发明申请公开(公告)号：US20220412372A1
公开(公告)日：2022-12-29
申请号：US17899236
申请日：2022-08-30
发明人： Takuya TERAMOTO , Ryo HORIE , Takahiro YAMATANI , Kazuya MICHIKAMI , Hiroshi TSUTSUMI , Keijiro YAMAGUCHI
IPC分类号： F04D29/42
摘要： A centrifugal air blower comprises a fan; and a scroll casing. The scroll casing includes: a sidewall covering the fan from an axial direction of a rotation axis on which the fan rotates, the side wall having a suction opening for sucking air; a discharge opening for discharging an airflow generated by the fan; a tongue portion for guiding the airflow to the discharge opening; a peripheral wall surrounding the fan from a radial direction of the rotation axis; and a bell mouth formed along the suction opening of the sidewall. The bell mouth includes an upstream end and a downstream end, the upstream end being an end portion on an upstream side in a direction of flow of the air passing through the suction opening, the downstream end being an end portion on a downstream side in the direction of flow of the air.
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13.发明申请公开(公告)号：US20210199125A1
公开(公告)日：2021-07-01
申请号：US16755732
申请日：2017-10-31
发明人： Takuya TERAMOTO , Ryo HORIE , Takahiro YAMATANI , Kazuya MICHIKAMI , Hiroshi TSUTSUMI , Hiroyasu HAYASHI
摘要： A centrifugal fan includes: a fan blades; and a scroll casing housing the fan, the scroll casing including a discharge portion, and a scroll portion including a side wall, a circumferential wall, and a tongue portion. In the circumferential wall, at a first end between the circumferential wall and the tongue portion, and at a second end between the circumferential wall and the discharge portion, a distance between an axis of the rotational shaft and the circumferential wall is equal to a distance between the axis of the rotational shaft and a standard circumferential wall, and is greater than or equal to the distance between the first end and the second end of the circumferential wall, the circumferential wall including a plurality of extended portions between the first end and the second end of the circumferential wall.
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公开(公告)号：US20210148377A1
公开(公告)日：2021-05-20
申请号：US17255826
申请日：2018-08-31
发明人： Hiroyasu HAYASHI , Takuya TERAMOTO , Kazuya MICHIKAMI , Ryo HORIE , Takahiro YAMATANI , Hiroshi TSUTSUMI
摘要： In a centrifugal air-sending device, a first area portion has a first vertex that is an intersection point of a curve line formed by a tongue portion and a bisector of a first connection straight line connecting a winding start portion and an end of a discharge portion. A second area portion has a second vertex that is an intersection point of the curve line formed by the tongue portion and a bisector of a second connection straight line connecting the winding start portion and the end of the discharge portion. When a virtual straight line connecting a rotational axis and the first vertex is defined as a first straight line, and a virtual straight line connecting the rotational axis and the second vertex is defined as a second straight line, the second straight line is longer than the first straight line.
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15.发明申请公开(公告)号：US20210140445A1
公开(公告)日：2021-05-13
申请号：US17042620
申请日：2018-05-21
发明人： Takuya TERAMOTO , Ryo HORIE , Takahiro YAMATANI , Kazuya MICHIKAMI , Hiroshi TSUTSUMI , Hiroyasu HAYASHI
摘要： A centrifugal blower includes a fan including a main plate having a disk-shape, and a plurality of blades, and a scroll casing configured to accommodate the fan. The scroll casing includes a discharge portion and a scroll portion including a side wall, a circumferential wall, and a tongue portion. The circumferential wall includes a curved circumferential wall and a flat circumferential wall. In comparison with a centrifugal blower including a standard circumferential wall having a logarithmic spiral shape in cross-section perpendicular to a rotational shaft of the fan, in the curved circumferential wall, at a first end being a boundary between the circumferential wall and the tongue portion and at a second end being a boundary between the circumferential wall and the discharge portion, a distance L1 between an axis of the rotational shaft and the circumferential wall is equal to a distance L2 between the axis of the rotational shaft and the standard circumferential wall.
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16.发明申请公开(公告)号：US20210033104A1
公开(公告)日：2021-02-04
申请号：US16759021
申请日：2018-10-25
发明人： Takuya TERAMOTO , Ryo HORIE , Takahiro YAMATANI , Kazuya MICHIKAMI , Hiroshi TSUTSUMI , Keijiro YAMAGUCHI
IPC分类号： F04D29/42
摘要： A centrifugal air blower comprises a fan; and a scroll casing. The scroll casing includes: a sidewall covering the fan from an axial direction of a rotation axis on which the fan rotates, the side wall having a suction opening for sucking air; a discharge opening for discharging an airflow generated by the fan; a tongue portion for guiding the airflow to the discharge opening; a peripheral wall surrounding the fan from a radial direction of the rotation axis; and a bell mouth formed along the suction opening of the sidewall. The bell mouth includes an upstream end and a downstream end, the upstream end being an end portion on an upstream side in a direction of flow of the air passing through the suction opening, the downstream end being an end portion on a downstream side in the direction of flow of the air.
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公开(公告)号：US20210003140A1
公开(公告)日：2021-01-07
申请号：US16620619
申请日：2017-08-09
发明人： Katsuyuki YAMAMOTO , Takuya TERAMOTO , Takahide TADOKORO , Hiroya ITO , Yuki UGAJIN , Shingo HAMADA , Takashi IKEDA , Takafumi ABE
摘要： A propeller fan includes a cylindrical shaft portion provided on a rotation axis of the propeller fan; a plurality of blades provided on an outer peripheral side of the shaft portion; a connection portion provided adjacent to the shaft portion and connecting two of the plurality of blades that are adjacent to each other in a circumferential direction of the propeller fan; a first rib provided on at least one of a pressure surface of each of the plurality of blades and a surface of part of the connection portion that is located on a downstream side in the flow of air, and a second rib provided on at least one of a negative-pressure surface of each of the plurality of blades and a surface of part of the connection portion that is located on an upstream side in the flow of air.
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公开(公告)号：US20200040736A1
公开(公告)日：2020-02-06
申请号：US16489721
申请日：2017-04-28
发明人： Takuya TERAMOTO , Takashi IKEDA , Yusuke ADACHI
IPC分类号： F01D5/14
摘要： A propeller fan includes a shaft disposed on a rotation axis and a blade disposed adjacent to an outer circumferential surface of the shaft. The blade has a leading edge and a trailing edge. At least one of the leading edge and the trailing edge has a notch. The notch includes a pair of side edge-parts forming an acute included angle and bottom edge-part located between the pair of side edge-parts. The bottom edge-part includes at least one protrusion having an obtuse included angle.
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公开(公告)号：US20180363928A1
公开(公告)日：2018-12-20
申请号：US15779925
申请日：2016-01-25
IPC分类号： F24F1/38
摘要： A heat exchanger, an axial-flow fan, a bell mouth, a fan motor, and a baffle plate are disposed in a casing of an outdoor unit. The casing includes a front panel provided with an air outlet, and a rear panel provided with an air inlet. The bell mouth and the baffle plate are disposed on an inner surface of the front panel. The bell mouth has a first opening opened toward the heat exchanger, and a second opening opened toward the air outlet. The baffle plate is disposed to incline from a predetermined position on the inner surface of the front panel toward where the bell mouth is disposed.
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公开(公告)号：US20240318838A1
公开(公告)日：2024-09-26
申请号：US18547199
申请日：2021-04-27
发明人： Katsuyuki YAMAMOTO , Takuya TERAMOTO , Atsushi KONO , Tetsuji SAIKUSA , Atsushi KIBE , Hironori YABUUCHI , Yuki NAKAO
IPC分类号： F24F1/38 , F24F1/0063 , F24F13/20
CPC分类号： F24F1/38 , F24F1/0063 , F24F13/20
摘要： An air sending device includes: a housing; a fan motor; a fan configured to generate an air current; a motor support base provided upstream of the fan and the fan motor in a flow direction of the air current, and supporting the fan motor; and a rectifying member provided upstream of the motor support base, protruding in a direction from the motor support base toward the upstream side, and having a rectifying surface configured to change the flow direction of the air current such that the air current flows toward an inner circumferential region of the fan. The rectifying surface of the rectifying member includes an upstream-side distal end surface formed spherically, and a main surface located between the upstream-side distal end surface and the motor support base, forming an outer peripheral surface of the rectifying member, and tapered in a direction away from the motor support base.
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