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1. 发明专利

JP2007163026A Indoor unit for air conditioner and air conditioner 审中-公开
标题翻译：空调和空调室内单元
公开(公告)号：JP2007163026A
公开(公告)日：2007-06-28
申请号：JP2005359782
申请日：2005-12-14
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YONEYAMA HIROYASU , OHARA HIDEJI , MOCHIZUKI MASAAKI , KENJO RYUKICHI , NAKANO HIROSHI
IPC分类号： F24F1/00
摘要： PROBLEM TO BE SOLVED: To solve a problem with a conventional technique wherein, while blades can be positioned, a hub, the blades and a shroud are separated from one another before being joined together, making transportation work and the like difficult. SOLUTION: An indoor unit for an air conditioner includes a casing, a motor supported against the inner surface of the casing, and a fan provided coaxially with the rotating shaft of the motor. The fan includes a hub that rotates about the rotating shaft of the motor, a plurality of blades arranged on the hub and in a circle about the rotating shaft, and a shroud disposed to sandwich the plurality of blades between the hub and the direction of the rotating shaft. The blades are provided with hooking claws. The hub or the shroud is provided with recess parts or holes. The hooking claws of the blades are inserted in the recess parts or the holes in the hub or the shroud. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题为了解决现有技术中的问题，其中当叶片可以定位时，轮毂，叶片和护罩在被接合在一起之前彼此分离，使得运输工作等困难。解决方案：一种用于空调的室内机包括壳体，支撑在壳体的内表面上的马达，以及与马达的旋转轴同轴设置的风扇。风扇包括围绕电动机的旋转轴旋转的毂，布置在轮毂上并围绕旋转轴的圆圈的多个叶片，以及设置成将多个叶片夹在轮毂和方向之间的护罩旋转轴。刀片设有钩爪。轮毂或护罩设置有凹部或孔。叶片的钩爪插入凹部或轮毂或护罩中的孔中。版权所有（C）2007，JPO＆INPIT

2. 发明专利

JP2006231866A Injection mold 审中-公开
标题翻译：注射模具
公开(公告)号：JP2006231866A
公开(公告)日：2006-09-07
申请号：JP2005053474
申请日：2005-02-28
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KENJO RYUKICHI , NAKANO HIROSHI
IPC分类号： B29C45/26 , B29L31/08
摘要： PROBLEM TO BE SOLVED: To provide an injection mold of manufacturing a resin-made propeller fan having good dimensional precision and little imbalance.
SOLUTION: The injection mold of manufacturing the resin-made propeller fan having a plurality of wings around a rotary shaft is characterized in that mating parts 3A and 3B both cooperating with each other are mounted in at least a part of the circumference of a portion forming wings of a fixed mold 1 and a movable mold 2. Since the mating parts 3A and 3B eliminate gap and displacement of the molds, it is possible to provide the resin-made propeller fan having good dimensional precision and little imbalance and rotating smoothly.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种制造具有良好尺寸精度和很小不平衡性的树脂制螺旋桨式风扇的注射模具。解决方案：制造具有围绕旋转轴的多个翼片的树脂制螺旋桨式风扇的注射模具的特征在于，彼此协作的配合部件3A和3B安装在至少一部分圆周形成固定模具1和可动模具2的翼部的部分。由于配合部件3A和3B消除了模具的间隙和位移，可以提供具有良好的尺寸精度和很小的不平衡和旋转的树脂制螺旋桨式风扇顺利。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2003097488A CENTRIFUGAL AIR BLOWER AND AIR CONDITIONER 审中-公开
公开(公告)号：JP2003097488A
公开(公告)日：2003-04-03
申请号：JP2001295344
申请日：2001-09-27
申请人： HITACHI LTD
发明人： OHARA HIDEJI , NAGAI MAKOTO , YONEYAMA HIROYASU , NAGAHASHI KATSUAKI , KISHITANI TETSUSHI , MOCHIZUKI MASAAKI , KENJO RYUKICHI , MORI YUTAKA
IPC分类号： F04D29/28 , F04D29/58 , F24F1/00
摘要： PROBLEM TO BE SOLVED: To provide a centrifugal air blower and an air conditioner for reducing an electromagnetic vibration sound, having high reliability, reducing a cost, and superior air blowing performance. SOLUTION: This centrifugal air blower is provided with an impeller having a boss 2 provided with a motor rotary shaft installing hole 6, a hub 3 on the outer periphery of the boss 2, a plurality of blades 4 arranged in the circumferential direction on the surface of the hub 3, and a shroud 5 arranged on the side opposed to the hub 3 by sandwiching the blades 4, and a motor for fixing a motor rotary shaft to the boss 2, and rotating the impeller. A plurality of slits 8 are arranged in the circumferential direction between the boss 2 of the hub 3 and the blades 4.

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