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1. 发明专利

JP2003000478A Motor-driven blower and vacuum cleaner using the same 审中-公开
标题翻译：使用电机驱动的鼓风机和真空清洁器
公开(公告)号：JP2003000478A
公开(公告)日：2003-01-07
申请号：JP2001192042
申请日：2001-06-25
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： HARADA HIDEYUKI , JORAKU FUMIO , AKOSHIMA KAZUHIRO
IPC分类号： A47L9/00 , A47L9/28
CPC分类号： Y02B40/84
摘要： PROBLEM TO BE SOLVED: To provide a light, compact, and usable vacuum cleaner with high- security which immediately detects an unusual heating of a motor-driven blower.
SOLUTION: The vacuum cleaner is provided with a protective device 19 for shutting off or regulating electric power supplied to the motor-driven blower, the protective device has a holding member 20 and is fixed to a housing 2 by inserting a part of a flange into a fixing hole 21 provided on the outer periphery of the housing 2, and a detecting portion of the protective device is brought into contact with the housing.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供一种轻巧，紧凑，可用的高安全性真空吸尘器，可立即检测电机驱动风机的异常加热。解决方案：真空吸尘器设有一个保护装置19，用于关闭或调节供应给电动鼓风机的电力，保护装置具有保持构件20，并通过将一部分凸缘插入到壳体2中设置在壳体2的外周上的固定孔21和保护装置的检测部分与壳体接触。

2. 发明专利

JP2003052587A Vacuum cleaner 有权
标题翻译：吸尘器
公开(公告)号：JP2003052587A
公开(公告)日：2003-02-25
申请号：JP2001240953
申请日：2001-08-08
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： HAYASHI SHOJI , TAJIMA TAIJI , SATO SHIGENORI , SATO SUSUMU , JORAKU FUMIO , UMEZAWA KOICHI , TAKEUCHI HIROSHI
IPC分类号： A47L9/00 , A47L5/30 , A47L9/02 , A47L9/04
摘要： PROBLEM TO BE SOLVED: To provide an easy-to-use and small cleaner that helps downsize a dust chamber, effectively accumulate dust in the dust chamber and prevent a dust filter from getting clogged by dust.
SOLUTION: The vacuum cleaner has a suction opening having an opening facing a surface to be cleaned, a brush chamber provided on the opening side of the suction opening, an electric blower, the rotating shaft of which is arranged in parallel with the longitudinal direction of the suction opening, and a dust chamber. In an air passage communicatively connecting the dust chamber and the electric blower, the entrance side central axis of the air passage is arranged nearer the brush chamber side than the central axis parallel with the longitudinal direction of the suction opening of the dust chamber.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：为了提供易于使用的小型清洁器，有助于减小灰尘室的尺寸，有效地积聚灰尘，并防止灰尘过滤器被灰尘堵塞。解决方案：真空吸尘器具有吸入口，其具有面向待清洁表面的开口，设置在吸入口开口侧的刷室，电动鼓风机，其旋转轴与纵向方向吸入口和灰尘室。在通气地连通集尘室和电动鼓风机的空气通道中，空气通道的入口侧中心轴布置成比与灰尘室的吸入口的纵向方向平行的中心轴线更靠近刷室侧。

3. 发明专利

JP2009156266A Electric blower 有权
标题翻译：电动鼓风机
公开(公告)号：JP2009156266A
公开(公告)日：2009-07-16
申请号：JP2009096663
申请日：2009-04-13
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： HARADA HIDEYUKI , JORAKU FUMIO , AKOJIMA KAZUHIRO
IPC分类号： F04D29/44
摘要： PROBLEM TO BE SOLVED: To solve a problem wherein, in a conventional electric blower, an elastic body needs to be accurately provided for each of blades at the upper face of a diffuser comprising over ten blades so that assemblability and working efficiency need to be improved. SOLUTION: A circular part is configured between a fan casing and the upper face of the diffuser. The circular part is integrally configured with the upper face of the diffuser by being bonded thereto. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题为了解决这样一个问题，在传统的电动鼓风机中，需要在包括十个叶片的扩散器的上表面上的每个叶片上准确地提供弹性体，从而使组装性和工作效率需要要改进
解决方案：圆形部分配置在风扇外壳和扩散器的上表面之间。圆形部分通过与漫射器的上表面结合而整体构成。版权所有（C）2009，JPO＆INPIT

4. 发明专利

JP2005214057A Electric blower 审中-公开
标题翻译：电动鼓风机
公开(公告)号：JP2005214057A
公开(公告)日：2005-08-11
申请号：JP2004020731
申请日：2004-01-29
申请人： Hitachi Home & Life Solutions Inc , Hitachi Ltd , 日立ホーム・アンド・ライフ・ソリューション株式会社 , 株式会社日立製作所
发明人： SAKAGAMI SEIJI , SUGIMURA KAZUYUKI , JORAKU FUMIO , HARADA HIDEYUKI
IPC分类号： F04D29/28
摘要： PROBLEM TO BE SOLVED: To increase efficiency, reduce noise, and increase productivity and assemblability in an electric blower for cleaner having a radial impeller.
SOLUTION: The fixed face 14b
1 of a disk-like hub plate 14b for joining the radial impeller 14 to a rotating shaft 5 is formed recessedly from the flow passage face 14b
2 thereof for forming a vane 14c to a motor side. The lower part of a horn type cap 22 covering a polygonal nut 20 fastening the hub plate 14b to the rotating shaft 5 is fitted to the recess of the fixed face 14b
1 .
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提高效率，降低噪音，提高具有径向叶轮的清洁器的电动鼓风机的生产率和组装性。解决方案：用于将径向叶轮14接合到旋转轴5的盘形轮毂板14b的固定面14b <1> 从流动通道面14b < / SB，用于在电动机侧形成叶片14c。喇叭型盖22的下部，其覆盖将轮毂板14b紧固到旋转轴5的多边形螺母20嵌合到固定面14b <1>的凹部。版权所有（C）2005，JPO＆NCIPI

5. 发明专利

JP2005094959A Permanent magnet rotary electric machine 有权
标题翻译：永磁电机旋转电机
公开(公告)号：JP2005094959A
公开(公告)日：2005-04-07
申请号：JP2003327045
申请日：2003-09-19
申请人： Hitachi Home & Life Solutions Inc , Hitachi Ltd , 日立ホーム・アンド・ライフ・ソリューション株式会社 , 株式会社日立製作所
发明人： TANIGUCHI TSUKASA , MIKAMI HIROYUKI , JORAKU FUMIO , HARADA HIDEYUKI
IPC分类号： H02K1/18 , H02K1/27 , H02K1/30
摘要： PROBLEM TO BE SOLVED: To obtain a permanent magnet rotary electric machine that eliminates troubles that caulking connection provided on dense magnetic flux portions causes the interruption of flux flow and the increase of iron loss, and that is good in productivity.
SOLUTION: Fixing means of magnetic steel sheets that constitutes an iron core of the permanent magnet rotary electric machine of this invention are configured to be at the inside circumference side in the radial direction in between a plurality of magnets constituting the magnetic poles of a rotor core in the rotor core, and to incline to the tangential line on the rotor surface facing teeth portions 15 in a stator core.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题为了获得一种消除在密集磁通部分上提供的铆接连接的麻烦的永久磁铁旋转电机，导致磁通流的中断和铁损的增加，并且生产率良好。＆lt; P＆gt;解决方案：构成本发明的永久磁铁旋转电机的铁心的电磁钢板的固定装置构成为在构成磁极的多个磁体之间的径向的内周侧转子芯中的转子芯，并且倾斜到定子芯中面向齿部15的转子表面上的切线。版权所有（C）2005，JPO＆NCIPI

6. 发明专利

JP2003000502A Vacuum cleaner 审中-公开
标题翻译：吸尘器
公开(公告)号：JP2003000502A
公开(公告)日：2003-01-07
申请号：JP2001192041
申请日：2001-06-25
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： AKOSHIMA KAZUHIRO , JORAKU FUMIO
IPC分类号： A47L9/28 , H01R13/642
CPC分类号： Y02B40/82
摘要： PROBLEM TO BE SOLVED: To solve a problem that easiness in miniaturization or assembly is limited by a protecting means in the charging means of a vacuum cleaner.
SOLUTION: The order of connection in the connecting part of a main body of vacuum cleaner and the charging means is fixed at all the time and electric charges on the main body of vacuum cleaner are discharged by a first connected terminal.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：为了解决在真空吸尘器的充电装置中通过保护装置限制小型化或组装的容易性的问题。解决方案：真空吸尘器主体连接部分与充电装置的连接顺序一直固定在真空吸尘器主体上的电荷由第一个连接端子排出。

7. 发明专利

JP2960449B2 Vacuum cleaner 失效
公开(公告)号：JP2960449B2
公开(公告)日：1999-10-06
申请号：JP31526589
申请日：1989-12-06
申请人：株式会社日立製作所
发明人： TOYOSHIMA HISANORI , JORAKU FUMIO , SUGA HISANAKA , ISHII YOSHITARO , KAWAMATA MITSUHISA , OHARAGI HARUO , TAWARA KAZUO , ENDO TSUNEHIRO , MYASHITA KUNIO , YASUJIMA TOSHUKI , ABE TAKASHI , HOSOKAWA ATSUSHI
IPC分类号： A47L9/00 , A47L9/10 , A47L9/28

8. 发明专利

JP2002000524A VACUUM CLEANER 失效
公开(公告)号：JP2002000524A
公开(公告)日：2002-01-08
申请号：JP2000184714
申请日：2000-06-20
申请人： HITACHI LTD
发明人： AKOSHIMA KAZUHIRO , JORAKU FUMIO , TAWARA KAZUO , ENDO TSUNEHIRO , IWASE KOJI
IPC分类号： A47L9/28
摘要： PROBLEM TO BE SOLVED: To obtain a sufficient sucking force even at d.c. power operation of a vacuum cleaner which is operable by both a.c. and d.c powers and to prolong the operable life of the electric motor. SOLUTION: Instead of a conventional a.c. commutator motor, a brushless motor or an inductive motor, which do not have a mechanical contact such as a commutator and the like, is used for the motor in the electric blower. The control circuit for driving the motor has a constitution having a booster converter and an inverter.

9. 发明专利

JP2001073994A ELECTRIC AIR BLOWER AND ELECTRIC VACUUM CLEANER THEREWITH 失效
公开(公告)号：JP2001073994A
公开(公告)日：2001-03-21
申请号：JP24479799
申请日：1999-08-31
申请人： HITACHI LTD
发明人： HAYASHI SHOJI , TANAKA TEIJI , SUGIMURA KAZUYUKI , SATO SHIGENORI , JORAKU FUMIO
IPC分类号： A47L9/00 , F04D17/10 , F04D25/08 , F04D29/30 , F04D29/44
摘要： PROBLEM TO BE SOLVED: To rotate flow of air from a centrifugal impeller at a diffuser part with a good efficiency serving dynamic pressure as static pressure, and improve an air blower efficiency by arranging a recessed part on a part of an outer end part opposed to a diffuser of the blade in a centrifugal impeller. SOLUTION: An electric air blower is provided with a centrifugal impeller 12 and a diffuser 11 having a plurality of air guides 11a disposed on an outer peripheral part of the centrifugal impeller 12. A cutout part 12e is disposed on a part of an outer end part of the blade 12a other than a shroud side plate 12e side of the centrifugal impeller 12. In a part where the cutout 12e is disposed on the blade 12a, the blade 12 is apparently formed in a small size comparing with a part other than the cutout part 12e. In flow 12 of air that flows out from an outlet part of the centrifugal impeller 12, main flow slantly flows a part where the cutout part is not disposed on the blade 12. Namely, in the flow 102 of air which flows in the diffuser 11, main flow slantly flows also a wall surface side of a fan casing side of the diffuser 11.

10. 发明专利

JP2000356197A ELECTRIC BLOWER 失效
公开(公告)号：JP2000356197A
公开(公告)日：2000-12-26
申请号：JP16577799
申请日：1999-06-11
申请人： HITACHI LTD
发明人： AKOSHIMA KAZUHIRO , JORAKU FUMIO
IPC分类号： F04D29/28 , F04D29/62
摘要： PROBLEM TO BE SOLVED: To improve the aerodynamic performance of an impeller by providing a blade and a mount hole on the surface of a front plate having a suction port, which surface is opposed to a rear plate having a mount hole for inserting the drive shaft of an electric motor, and mounting the front plate and the rear plate one over another on the drive shaft through each mount hole. SOLUTION: A front plate 52 has a suction port 51, and a thick part 53A for enhancing the mechanical strength is formed in the center of a rear plate 53. Further, the front plate 52 has a blade 54 and an air discharge port 55, and a disc-like mount plate 56 is integrally formed on the suction port side of each blade 54. A mount hole to be mounted on the rotating shaft 26 of an electric motor is formed in the center of the front plate 52. The front plate 52, the blade 54 and the mount plate 56 are integrally formed by injection molding, and assembled to the electric motor together with the rear plate 53, whereby the air resistance and noise resulted from a caulking projection can be reduced. Since the blade 54 is closely connected to the rear plate 53, the aerodynamic performance of the electric blower can be improved.

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