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公开(公告)号：US09903386B2
公开(公告)日：2018-02-27
申请号：US14709192
申请日：2015-05-11
摘要： An air conditioning apparatus includes a casing having intake and blow-out ports, a partition member dividing an interior of the casing, a heat exchanger and a centrifugal fan. The centrifugal fan includes a hub and a bladed wheel having a plurality of rearward blades and sucks air existing in the heat exchanger compartment into the fan compartment through the fan entrance. The bladed wheel is mounted in the fan compartment such that a rotary shaft of the bladed wheel is oriented along an opening direction of the fan entrance and an opening direction of the blow-out port. The hub connects blow-out port side ends of the plural rearward blades and is configured to be rotated about the rotary shaft. The hub has an outer diameter smaller than an outer diameter of the rearward blades.
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公开(公告)号：US09765989B2
公开(公告)日：2017-09-19
申请号：US14687249
申请日：2015-04-15
CPC分类号： F24F13/222 , F24F1/022
摘要： An air conditioning apparatus includes a casing having intake and blow-out ports, a partition member dividing an interior of the casing and having a fan entrance, a heat exchanger, a first drain pan mounted in the heat exchanger to receive water produced by dew condensation in the heat exchanger, and a centrifugal fan. The centrifugal fan includes a bladed wheel mounted in the fan compartment such that a rotary shaft of the bladed wheel is oriented along the fan entrance. The first drain is disposed adjacent to a drain pan nearby lateral part of multiple lateral parts of the casing that are disposed along the opening direction of the fan entrance. The rotary shaft is disposed adjacent to a bladed wheel nearby lateral part of the multiple lateral parts of the casing and being opposed to the drain pan nearby lateral part.
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公开(公告)号：US09618216B2
公开(公告)日：2017-04-11
申请号：US14687202
申请日：2015-04-15
发明人： Takashi Kashihara , Tsunehisa Sanagi , Takahiro Yamasaki , Naofumi Yokoyama , Tsuyoshi Yokomizo
CPC分类号： F24F1/0022 , F24F1/0018
摘要： An air conditioning apparatus includes a casing having intake and blow-out ports, a partition member dividing an interior of the casing, a heat exchanger, and a centrifugal fan. The blow-out port is at least partially disposed adjacent to a blow-out port nearby lateral part of the casing along an opening direction of a fan entrance and the blow-out port. A fan downwind space is located on a downwind side of a bladed wheel within a fan compartment, and has a blow-out port opposed space and a blow-out port non-opposed space. A first guide member directs air existing in the blow-out port non-opposed space toward the blow-out port opposed space, and is mounted in a boundary region located astride of regions located on forward and rearward sides in a rotary direction within the blow-out port non-opposed and blow-out port opposed spaces, respectively.
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公开(公告)号：US11859635B2
公开(公告)日：2024-01-02
申请号：US18355570
申请日：2023-07-20
CPC分类号： F04D29/329 , F04D19/002 , F04D29/386
摘要： An axial-flow fan includes: a hub; and blades disposed on an outer peripheral surface of the hub and spaced apart from each other in a circumferential direction. The hub includes: an outer wall having a tubular shape; an inner wall having a tubular shape and being disposed radially inward of the outer wall; a boss to which a shaft is mounted and that is disposed radially inward of the inner wall; a first sidewall connecting an end portion of the outer wall that is closer to a first side in a rotation axis direction of the hub with an end portion of the inner wall that is closer to the first side in the rotation axis direction; and a second sidewall connecting the end portion of the inner wall with an end portion of the boss that is closer to the first side in the rotation axis direction.
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公开(公告)号：US20230358249A1
公开(公告)日：2023-11-09
申请号：US18355570
申请日：2023-07-20
CPC分类号： F04D29/329 , F04D29/386 , F04D19/002
摘要： An axial-flow fan includes: a hub; and blades disposed on an outer peripheral surface of the hub and spaced apart from each other in a circumferential direction. The hub includes: an outer wall having a tubular shape; an inner wall having a tubular shape and being disposed radially inward of the outer wall; a boss to which a shaft is mounted and that is disposed radially inward of the inner wall; a first sidewall connecting an end portion of the outer wall that is closer to a first side in a rotation axis direction of the hub with an end portion of the inner wall that is closer to the first side in the rotation axis direction; and a second sidewall connecting the end portion of the inner wall with an end portion of the boss that is closer to the first side in the rotation axis direction.
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公开(公告)号：US10480817B2
公开(公告)日：2019-11-19
申请号：US14482565
申请日：2014-09-10
IPC分类号： F24F13/20 , F24F13/30 , F24F13/08 , F24F1/0059 , F24F1/0007 , F24F1/0022
摘要： The duct-type indoor unit of an air conditioner includes: a casing including a first surface and a second surface opposing each other, an inlet duct connection part which is formed in the first surface and to which an inlet duct is connected, and an outlet duct connection part which is formed in the second surface and to which an outlet duct is connected; a partition member partitioning interior of the casing into a first space on an inlet side and a second space on an outlet side, the partitioning member having an opening communicating the first space with the second space; a heat exchanger arranged inside the first space; and a centrifugal fan having an impeller with backward curved blades, the impeller being positioned inside the second space to suck in air in the first space through the opening. The impeller has a rotating shaft parallel to the first surface.
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公开(公告)号：US09945568B2
公开(公告)日：2018-04-17
申请号：US14687273
申请日：2015-04-15
CPC分类号： F24F1/0022 , F04D29/023 , F04D29/281 , F04D29/5853 , F05D2300/44
摘要： An air conditioning apparatus includes a casing having intake and blow-out ports, a partition member dividing an interior of the casing, a heat exchanger, a centrifugal fan, a heater and a fan heat shield. The centrifugal fan includes a bladed wheel mounted in the fan compartment such that a rotary shaft of the bladed wheel is oriented along an opening direction of the fan entrance and an opening direction of the blow-out port, and the bladed wheel being made of resin. The heater is mounted in a blow-out port opposed space opposed to the blow-out port within a fan downwind space located on a downwind side of the bladed wheel within the fan compartment. The fan heat shield member is mounted in the fan downwind space in order to cover a part of the bladed wheel that is opposed to the heater.
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公开(公告)号：US11828294B2
公开(公告)日：2023-11-28
申请号：US18212616
申请日：2023-06-21
CPC分类号： F04D29/386 , F04D29/667 , F24F7/007
摘要： A propeller fan includes a hub, and a plurality of wings provided at an outer circumference of the hub. Each of the wings includes a protrusion tapered and positioned on a rotation direction rear side in a radially outer portion of the wing, the protrusion includes a top positioned at a rearmost end in the rotation direction, an outer circumferential rear edge positioned radially outside the top, and an inner circumferential rear edge positioned radially inside the top, the outer circumferential rear edge includes a first serration having a first serration shape, and the inner circumferential rear edge includes a second serration having a second serration shape.
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公开(公告)号：US10274222B2
公开(公告)日：2019-04-30
申请号：US14482269
申请日：2014-09-10
IPC分类号： F24F13/20 , F24F1/0007
摘要： A fan unit includes a fan case, a partition member and a centrifugal fan. The fan case has an inflow port and a blowout port. The fan case includes a unit connecting portion for connecting the heat exchange unit. The partition member partitions an inside of the fan case into an upstream side space and a downstream side space. The partition member has an opening for allowing the upstream side space and the downstream side space to communicate with each other. The centrifugal fan includes an impeller including a plurality of backward curved blades. The centrifugal fan is arranged such that the impeller is located in the downstream side space and sucks air in the upstream side space through the opening. The blowout port is located on an outer side in a radial direction of the impeller in the downstream side space.
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公开(公告)号：US10006463B2
公开(公告)日：2018-06-26
申请号：US14687216
申请日：2015-04-15
CPC分类号： F04D17/08 , F04D27/001 , F24F1/50 , F24F11/89
摘要： An air conditioning apparatus includes a centrifugal fan mounted in an interior of a casing and a pressure sensor. The pressure sensor can have a primary-side pressure detection tube opened in a position adjacent to a circumferential part of the casing on an inlet side surface of the bell mouth of the fan when the bell mouth is seen from a direction along the rotary shaft to detect a primary-side pressure of the centrifugal fan. Alternatively, the pressure sensor can have a primary-side pressure detection tube opened in a position adjacent to a circumferential part of the casing on a heat exchanger compartment side surface of the partition member when the partition member is seen from a direction along the rotary shaft to detect a primary-side pressure of the centrifugal fan.
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