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公开(公告)号：US09759441B2
公开(公告)日：2017-09-12
申请号：US14119197
申请日：2012-03-29
CPC分类号： F24F7/007 , F04D17/04 , F04D29/4226 , F24F1/0011 , F24F1/0025 , F24F13/24
摘要： The length of a cross flow fan in the rotational axis direction is longer than the length of an air outlet in the longitudinal direction, and the cross flow fan has a fan extension positioned beyond each end of the air outlet in the rotational axis direction. Deflectors are provided in the air-conditioning apparatus main body. An outlet airflow blown from each fan extension of the cross flow fan impinges upon a corresponding one of the deflector. Furthermore, the shape of blade portions of the fan extensions of the cross flow fan and the shape of blade portions opposing the air outlet are different from each other. The wind speed of the outlet airflow blown from the blade portion is lower than the wind speed of an outlet airflow blown from the blade portion.
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公开(公告)号：US20130177395A1
公开(公告)日：2013-07-11
申请号：US13876561
申请日：2011-10-12
CPC分类号： F04D17/04 , F01D5/141 , F04D29/281 , F04D29/283 , F04D29/30 , F24F1/0025
摘要： A cross flow fan including an impeller having at least two rings arranged with intervals in a fan rotation axis O direction and a plurality of blades that are arranged, between correlated rings, with intervals in a circumferential direction of the rings, in which the blade is divided into plural areas in the fan rotation axis O direction, and both ends adjacent to the rings are denoted as the blade-ring proximate sections and the center portion of the blade is denoted as the inter-blade-ring center section. The blade is formed such that the thickness of the inner peripheral blade end of the blade that is the inner peripheral end of the impeller is smaller in the inter-blade-ring center section than in the blade-ring proximate section.
摘要翻译： 一种横流风扇，包括具有沿风扇旋转轴线O方向间隔布置的至少两个环的叶轮和在相关环之间以环的周向间隔布置的多个叶片，其中叶片为 分为风扇旋转轴O方向上的多个区域，并且与环相邻的两端被表示为叶片环近似部分，并且叶片的中心部分被表示为叶片间中心部分。 叶片形成为使叶片的内周端部的叶片的内周侧叶片的厚度在叶片间环中央部比叶片环近侧部分小。
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公开(公告)号：US20120328420A1
公开(公告)日：2012-12-27
申请号：US13582933
申请日：2011-03-24
CPC分类号： F04D29/281 , F04D29/30 , F05D2240/304 , F05D2250/294
摘要： Blades 4 forming a turbofan 1 included in an indoor unit 100 each have, in a blade outer-circumferential surface 4c of the blade 4 and near a blade rear-edge portion 4b, a plurality of rear-edge horizontal grooves 5 extending horizontally (in a plane perpendicular to a center of rotation O) with predetermined lengths L2 reaching the blade rear-edge portion 4b. The rear-edge horizontal grooves 5 are each a combination of a groove recessed portion 5a provided with a predetermined depth in the blade outer-circumferential surface 4c and a groove wrapping portion 5b continuous with the groove recessed portion 5a and provided at the terminal end of the blade rear-edge portion 4b. The rear-edge horizontal grooves 5 are provided in a region extending upward from the main plate 2 defined by a distance H1 and in a region extending downward from the shroud 3 defined by a distance H2.
摘要翻译： 在叶片4的叶片外周面4c和叶片后缘部4b附近形成有室内机100所具备的涡轮风扇1的叶片4，在水平方向上延伸有多个后缘水平槽5 垂直于旋转中心O的平面），其具有到达叶片后边缘部分4b的预定长度L2。 后边缘水平槽5分别是在叶片外周面4c中设置有预定深度的槽凹部5a和与槽凹部5a连续的槽包裹部5b的组合， 叶片后边缘部分4b。 后边缘水平槽5设置在从距离H1限定的主板2向上延伸的区域和从距离H2限定的护罩3向下延伸的区域中。
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公开(公告)号：US10436496B2
公开(公告)日：2019-10-08
申请号：US14389428
申请日：2012-10-04
申请人： Takashi Ikeda , Takahide Tadokoro , Mitsuhiro Shirota , Seiji Hirakawa , Koji Yamaguchi , Koichi Umetsu
发明人： Takashi Ikeda , Takahide Tadokoro , Mitsuhiro Shirota , Seiji Hirakawa , Koji Yamaguchi , Koichi Umetsu
IPC分类号： F25D17/06 , F24F7/007 , F04D17/04 , F24F1/0018 , F04D29/30 , F24F1/0025
摘要： A blade included in an impeller is formed so that, when viewed in a vertical cross-sectional view of the blade, a pressure surface of the blade and a suction surface of the blade opposite to the pressure surface are curved more in the direction in which the impeller rotates, in their areas farther from the axis of rotation of the impeller and closer to the exterior of the blade, and are arched so that a portion near the center of the blade is most distant from a straight line connecting the inner end and the outer end of the blade, the pressure surface and the suction surface form a curved surface including at least one circular arc, and a straight portion of the blade is formed to be connected to the curved surface on its one side, and extend toward the inner end of the blade on its other side.
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5.发明授权公开(公告)号：US09267511B2
公开(公告)日：2016-02-23
申请号：US13582933
申请日：2011-03-24
CPC分类号： F04D29/281 , F04D29/30 , F05D2240/304 , F05D2250/294
摘要： Blades forming a turbofan included in an indoor unit each have, in a blade outer-circumferential surface of the blade and near a blade rear-edge portion, a plurality of rear-edge horizontal grooves extending horizontally (in a plane perpendicular to a center of rotation) with predetermined lengths L2 reaching the blade rear-edge portion. The rear-edge horizontal grooves are each a combination of a groove recessed portion provided with a predetermined depth in the blade outer-circumferential surface and a groove wrapping portion continuous with the groove recessed portion and provided at the terminal end of the blade rear-edge portion. The rear-edge horizontal grooves are provided in a region extending upward from the main plate defined by a distance H1 and in a region extending downward from the shroud defined by a distance H2.
摘要翻译： 包括在室内单元中的形成涡轮风扇的叶片各自在叶片的叶片外周表面中并且在叶片后边缘部分附近具有多个后边缘水平槽，水平槽在垂直于 旋转），其具有到达刀片后边缘部分的预定长度L2。 后边缘水平槽各自是在叶片外周面中设置有预定深度的槽凹部和与槽凹部连续的槽包装部，并且设置在叶片后缘的末端 一部分。 后边缘水平槽设置在从距离H1限定的主板向上延伸的区域中以及从距离H2限定的护罩向下延伸的区域中。
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公开(公告)号：US20120045338A1
公开(公告)日：2012-02-23
申请号：US13318363
申请日：2010-04-15
申请人： Takahide Tadokoro , Takashi Ikeda
发明人： Takahide Tadokoro , Takashi Ikeda
IPC分类号： F04D29/30
CPC分类号： F04D29/281 , F04D29/30
摘要： Provided is a centrifugal fan that can accelerate an airflow also in a trailing edge part on a main plate side. A centrifugal fan 110 includes a main plate 2 that is driven to rotate around a rotational axis 17, a shroud 3 that is disposed so as to be opposed to the main plate 2, including an intake port for taking in air, and plural blades that are disposed upright between the main plate 2 and the shroud 3. An adjacent distance between trailing edges of two adjacent blades 40 is gradually decreased in the direction from the shroud 3 to the main plate 2, at least from a certain point in the direction from the shroud 3 to the main plate 2, and further, in each blade 40, an inclination 53a of a negative pressure surface of the blade 40 that extends from the main plate 2 toward the shroud is smaller at least in the vicinity of the trailing edge than an inclination 53b of a pressure surface of the blade 40 that extends from the main plate 2 toward the shroud 3.
摘要翻译： 提供了一种离心式风扇，其也可以在主板侧的后缘部中加速气流。 离心式风扇110包括被驱动绕旋转轴线17旋转的主板2，与主板2相对配置的护罩3，其包括用于吸入空气的进气口，以及多个叶片 直立在主板2和护罩3之间。两个相邻叶片40的后缘之间的相邻距离在从护罩3到主板2的方向上逐渐减小，至少从 护罩3到主板2，并且在每个叶片40中，从主板2向护罩延伸的叶片40的负压表面的倾斜度53a至少在后缘附近 比从主板2向罩3延伸的叶片40的压力表面的倾斜度53b。
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公开(公告)号：US09453512B2
公开(公告)日：2016-09-27
申请号：US14003279
申请日：2011-03-11
申请人： Takahide Tadokoro , Takashi Ikeda , Seiji Hirakawa
发明人： Takahide Tadokoro , Takashi Ikeda , Seiji Hirakawa
摘要： A cross flow fan achieves low power input and low noise level by preventing flow separation on an air inlet side and reducing a maximum air velocity in the gap between the blades. At least one of units constituting a cross flow fan is an appearance unit configured such that when the unit is sequentially cut in a direction from one of rings to the other ring along a plane whose normal coincides with a rotation axis, a region S and a region C appear, the radius of a second circle, serving as an inner circumferencial circle (having a radius), in the region S being a first radius of predetermined length, the radius of the second circle, serving as the inner circumferencial circle, in the region C being a second radius shorter than the first radius.
摘要翻译： 横流风扇通过防止空气入口侧的流动分离并降低叶片之间的间隙中的最大空气速度来实现低功率输入和低噪声水平。 构成横流风扇的单元中的至少一个是外观单元，其构造成使得当单元沿着从一个环到另一个环的方向从沿着与旋转轴一致的平面的顺序切割时，区域S和 在区域S中出现作为内圆周（具有半径）的第二圆的半径，在区域S中是预定长度的第一半径，用作内圆周的第二圆的半径 区域C是比第一半径短的第二半径。
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公开(公告)号：US09267510B2
公开(公告)日：2016-02-23
申请号：US13318363
申请日：2010-04-15
申请人： Takahide Tadokoro , Takashi Ikeda
发明人： Takahide Tadokoro , Takashi Ikeda
CPC分类号： F04D29/281 , F04D29/30
摘要： A centrifugal fan includes a main plate that is driven to rotate around a rotational axis, a shroud that is disposed so as to be opposed to the main plate, including an intake port for taking in air, and plural blades that are disposed upright between the main plate and the shroud. An adjacent distance between trailing edges of two adjacent blades is gradually decreased in the direction from the shroud to the main plate, at least from a certain point in the direction from the shroud to the main plate, and further, in each blade, an inclination of a negative pressure surface of the blade that extends from the main plate toward the shroud is smaller at least in the vicinity of the trailing edge than an inclination of a pressure surface of the blade that extends from the main plate toward the shroud.
摘要翻译： 离心风扇包括被驱动绕旋转轴线旋转的主板，设置成与主板相对设置的护罩，其包括用于吸入空气的进气口，以及多个叶片， 主板和护罩。 两个相邻叶片的后缘之间的相邻距离至少从从护罩到主板的方向上的某一点沿着从护罩到主板的方向逐渐减小，并且在每个叶片中，倾斜 从主板朝向护罩延伸的叶片的负压表面至少在后缘附近比从主板朝向护罩延伸的叶片的压力表面的倾斜小。
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公开(公告)号：US08834121B2
公开(公告)日：2014-09-16
申请号：US13319804
申请日：2010-03-16
CPC分类号： F04D29/281 , F04D25/088 , F04D29/242 , F04D29/245 , F04D29/282 , F04D29/30 , F04D29/667 , F05D2240/303 , F05D2240/304
摘要： A blade front edge of a turbo fan has, between a main-plate-side blade front edge and a shroud-side blade front edge, a projecting blade front edge which distances away from a blade rear edge (located in a rotation direction A) as it furthers away from a main plate, which curves to a position away from a rotation center, and, in a range close to the main plate, a main-plate-side front-edge skirt portion which distances away from the blade rear edge and inclines away from the rotation center as it becomes closer to the main plate. On the other hand, a main-plate-side blade rear edge, which is a range close to the main plate of the blade rear edge, is substantially perpendicular to the main plate and a shroud-side blade rear edge, which is a range close to a shroud, is inclined so as to gradually distance away from the blade front edge (behind in the rotation direction A) as it furthers away from the main plate.
摘要翻译： 涡轮风扇的叶片前缘在主板侧叶片前缘和护罩侧叶片前缘之间具有远离叶片后边缘（位于旋转方向A上）的突出叶片前缘， 因为它远离主板，该主板弯曲到远离旋转中心的位置，并且在靠近主板的范围内，具有远离叶片后边缘的主板侧前边缘裙部 并且随着它变得靠近主板而偏离旋转中心。 另一方面，靠近叶片后缘主板的主板侧叶片后缘基本上垂直于主板和一个范围的护罩侧叶片后边缘 靠近护罩，其倾斜，以便当其远离主板时，逐渐远离叶片前边缘（在旋转方向A后）。
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公开(公告)号：US20130336788A1
公开(公告)日：2013-12-19
申请号：US14003279
申请日：2011-03-11
申请人： Takahide Tadokoro , Takashi Ikeda , Seiji Hirakawa
发明人： Takahide Tadokoro , Takashi Ikeda , Seiji Hirakawa
IPC分类号： F04D17/04
摘要： A cross flow fan achieves low power input and low noise level by preventing flow separation on an air inlet side and reducing a maximum air velocity in the gap between the blades. At least one of units constituting a cross flow fan is an appearance unit configured such that when the unit is sequentially cut in a direction from one of rings to the other ring along a plane whose normal coincides with a rotation axis, a region S and a region C appear, the radius of a second circle, serving as an inner circumferencial circle (having a radius), in the region S being a first radius of predetermined length, the radius of the second circle, serving as the inner circumferencial circle, in the region C being a second radius shorter than the first radius.
摘要翻译： 横流风扇通过防止空气入口侧的流动分离并降低叶片之间的间隙中的最大空气速度来实现低功率输入和低噪声水平。 构成横流风扇的单元中的至少一个是外观单元，其构造成使得当单元沿着从一个环到另一个环的方向从沿着与旋转轴一致的平面的顺序切割时，区域S和 在区域S中出现作为内圆周（具有半径）的第二圆的半径，在区域S中是预定长度的第一半径，用作内圆周的第二圆的半径 区域C是比第一半径短的第二半径。
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