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1. 发明申请

US20220393534A1 MOTOR ROTOR WITH SLEEVE FOR RETENTION OF MAGNET RING 有权
公开(公告)号：US20220393534A1
公开(公告)日：2022-12-08
申请号：US17832315
申请日：2022-06-03
申请人： Black & Decker Inc.
发明人： Changxing LU , Abraham SANCHEZ , Tong ZHENG , Fulong LIU , Yeli GU , David J. SMITH , Shailesh P. WAIKAR
IPC分类号： H02K1/30 , H02K1/2733 , H02K15/03 , H02K7/14 , H02K29/00
摘要： A brushless direct-current (BLDC) motor is provided. The motor includes a stator including a stator core, stator teeth, and windings; a rotor shaft disposed within the stator and extending along a longitudinal axis; and a rotor. The rotor includes a rotor core having a cylindrical body, a permanent magnet ring mounted on an outer surface of the cylindrical body with no intermediate adhesive therebetween, and metal sleeve securely fitted outside the permanent magnet ring. The metal sleeve includes a flange extending radially inwardly that covers an axial end of the permanent magnet ring and is bonded to the rotor core to secure the permanent magnet ring to the rotor core.

2. 发明授权

US11088599B2 Brushless motor 有权
公开(公告)号：US11088599B2
公开(公告)日：2021-08-10
申请号：US16072873
申请日：2017-04-06
申请人： DENSO CORPORATION
发明人： Akihiko Suzuki , Takeo Noda
IPC分类号： H02K11/40 , H02K29/00 , H02K5/00 , H02K11/33 , H02K21/22 , H02K5/173 , H02K5/22 , H02K7/08
摘要： An object is to provide a brushless motor capable of effectively shutting off and absorbing electromagnetic noise caused from a stator, while achieving cost reduction. A brushless motor 10 includes: a shaft 12; a rotor 14; a stator 16; a first bearing 18; a second bearing 20; a bearing holder member 22; a center piece 24; and a circuit board 26. The bearing holder member 22 is made of metal and holds the first bearing 18. The center piece 24 is made of resin and holds the second bearing 20 and the stator 16. The center piece 24 is provided with a conductive part 120 (a plating layer 94 and a terminal member 102) that electrically connects the bearing holder member 22 and the second bearing 20 to a ground part 92 of the circuit board 26.

3. 发明申请

US20170194846A1 ELECTRIC TOOL 审中-公开
公开(公告)号：US20170194846A1
公开(公告)日：2017-07-06
申请号：US15314100
申请日：2015-05-22
申请人： Hitachi Koki Co., Ltd.
发明人： Hideyuki TANIMOTO
IPC分类号： H02K21/16 , B25D16/00 , H02K29/00 , H02K1/14 , H02K1/27 , H02K3/18 , B25D11/00 , B25F5/00
CPC分类号： H02K21/16 , B25D11/00 , B25D16/00 , B25D2211/068 , B25D2250/095 , B25F5/00 , H02K1/146 , H02K1/2706 , H02K3/18 , H02K29/00 , H02K2213/03
摘要： An electric tool is provided with a rotary striking mechanism unit converting the rotational force of a brushless motor to a striking force and applying the striking force to a tip tool. The required rated input of the motor is 1000-1300 W, the motor speed under fixed speed control is 16800±10% (min−1), and the variable Ku, which relates to the motor, is defined by the following expression Ku={(stator core outer diameter)2×(stator core lamination thickness)×(total tooth width)×(rotor outer diameter)}÷{(rated input)×(motor speed under fixed speed control)}, wherein the stator core outer diameter, the stator core lamination thickness, the total tooth width and the rotor outer diameter are shown in mm, the rated input is shown in W, the motor speed is shown in min−1, and the Ku value of the motor is set to 14.6←Ku←21.8.

4. 发明授权

US09564842B2 DC voltage detector and power converter using the same 有权
标题翻译：直流电压检测器和功率转换器使用相同
公开(公告)号：US09564842B2
公开(公告)日：2017-02-07
申请号：US14400037
申请日：2012-05-11
申请人： Hiroshi Ogino , Akinobu Ando , Yasuhiko Hosokawa
发明人： Hiroshi Ogino , Akinobu Ando , Yasuhiko Hosokawa
IPC分类号： H02P6/14 , H02P27/06 , H02M5/45 , G01R19/00 , G01R21/00 , H02K29/00 , H02K29/08 , H02P6/08 , H02P6/00 , G01R31/42
CPC分类号： H02P6/14 , G01R19/0084 , G01R21/00 , G01R31/42 , H02K29/00 , H02K29/08 , H02M5/45 , H02M5/4505 , H02P6/001 , H02P6/08 , H02P6/34 , H02P27/06
摘要： In a thyristor control device which converts a first AC voltage to a DC voltage and converts the DC voltage to a second AC voltage to be supplied to a synchronous motor, a DC voltage detector is configured to detect the DC voltage, and is provided with an AC voltage detector configured to detect the second AC voltage and an arithmetic circuit configured to determine the DC voltage on the basis of the second AC voltage detected by the AC voltage detector. As a result, there is no need to separately provide a DV voltage detector, which makes it possible to make the device compact in size and cheap in price.
摘要翻译：在将第一AC电压转换为DC电压并将DC电压转换为提供给同步电动机的第二AC电压的晶闸管控制装置中，DC电压检测器被配置为检测DC电压，并且具有 AC电压检测器，被配置为检测第二AC电压;以及运算电路，被配置为基于由AC电压检测器检测到的第二AC电压来确定DC电压。结果，不需要单独提供DV电压检测器，这使得可以使该装置的尺寸紧凑并且价格便宜。

5. 发明授权

US09509200B2 HF generator with improved solid-state switch connections 有权
标题翻译： HF发生器具有改进的固态开关连接
公开(公告)号：US09509200B2
公开(公告)日：2016-11-29
申请号：US14008090
申请日：2011-10-13
申请人： Oliver Heid , Timothy Hughes
发明人： Oliver Heid , Timothy Hughes
IPC分类号： H02K29/00 , H01P5/02 , H01R24/46 , H01R107/00
CPC分类号： H02K29/00 , H01P5/026 , H01R24/46 , H01R2107/00
摘要： An HF generator has first and second solid-state switches. Each of the solid-state switches has first and second output connectors and is designed to switch a high-frequency electrical current between the first and second output connectors. Furthermore, the HF generator has a coaxial cable with first and second conductors. The first conductor successively has a first section and a second section in the longitudinal direction of the coaxial cable which are separated from one another by a first break point. The first output connector of the first solid-state switch is conductively connected to the second conductor, and the second output connector of the first solid-state switch is conductively connected to the first section. In addition, the first output connector of the second solid-state switch is conductively connected to the first section, and the second output connector of the second solid-state switch is conductively connected to the second section.
摘要翻译： HF发生器具有第一和第二固态开关。每个固态开关具有第一和第二输出连接器，并且被设计成在第一和第二输出连接器之间切换高频电流。此外，HF发生器具有与第一和第二导体的同轴电缆。第一导体依次具有沿着同轴电缆的纵向的第一部分和第二部分，它们通过第一断点彼此分离。第一固态开关的第一输出连接器导电地连接到第二导体，并且第一固态开关的第二输出连接器导电地连接到第一部分。此外，第二固态开关的第一输出连接器导电地连接到第一部分，并且第二固态开关的第二输出连接器导电地连接到第二部分。

6. 发明授权

US08907605B2 Circuit structure enabling upgraded MOS transistor heat dissipation ability 有权
标题翻译：电路结构使MOS晶体管的散热能力得到提升
公开(公告)号：US08907605B2
公开(公告)日：2014-12-09
申请号：US13723128
申请日：2012-12-20
申请人： Asia Vital Components (China) Co., Ltd.
发明人： Bao-Lin Yao , Qing-Wu Hu
IPC分类号： H02P6/00 , H02K29/00
CPC分类号： H02K29/00 , H02M1/08 , H02M2001/327 , H02P27/08
摘要： A circuit structure applied to a motor and enabling upgraded MOS transistor heat dissipation ability is disclosed. The circuit structure includes a motor driving unit and a signal processing unit. The signal processing unit is connected to the motor driving unit for maintaining a first and a third switch of the motor driving unit at a constant turn-on voltage and boosting turn-on voltages of a second and a fourth switch of the motor driving unit, so as to effectively upgrade the heat dissipation ability of the first, second, third and fourth switches.
摘要翻译：公开了一种应用于电动机并实现升级的MOS晶体管散热能力的电路结构。电路结构包括马达驱动单元和信号处理单元。信号处理单元连接到电动机驱动单元，用于将电动机驱动单元的第一和第三开关保持在恒定的导通电压，并提高电动机驱动单元的第二和第四开关的导通电压，以便有效地提高第一，第二，第三和第四开关的散热能力。

7. 发明授权

US08536747B1 Direct current multi-stage motor 失效
标题翻译：直流多级电机
公开(公告)号：US08536747B1
公开(公告)日：2013-09-17
申请号：US13507413
申请日：2012-06-26
申请人： Thomas E. Baggett
发明人： Thomas E. Baggett
IPC分类号： H02K29/00
CPC分类号： H02K21/24 , H02K1/2793 , H02K29/08
摘要： A three phase brushless direct current multi-stage motor, that is of the pancake type. The direct current multi-stage motor comprises a continuous and additive magnetic flux field loop with a plurality of flux paths that flow across the vertically wound stators sandwiched between the rotors. The rotors are embedded with a plurality of permanent magnets which are alternately spaced near the outer radius.
摘要翻译：三相无刷直流多级电机，即煎饼型。直流多级电动机包括连续和附加的磁通场环路，其具有流过夹在转子之间的垂直缠绕定子的多个磁通路径。转子内嵌有多个在外半径附近交替隔开的永磁体。

8. 发明授权

US08138696B2 Dipolar axial compression permanent magnet motor 有权
标题翻译：双极轴向压缩永磁电动机
公开(公告)号：US08138696B2
公开(公告)日：2012-03-20
申请号：US12975652
申请日：2010-12-22
申请人： Timm A. Vanderelli , Rodney Carter
发明人： Timm A. Vanderelli , Rodney Carter
IPC分类号： H02K47/14 , H02K29/00 , H02P8/14
CPC分类号： H02K1/2793 , H02K21/24 , H02P6/15
摘要： The present invention relates to a system and a method for improving the use of energy in an electric motor by inducing currents generated from magnets that result in an increase of primary power and creating, directing and introducing a counter current obtained from primary coils of the motor into a resonant LC circuit which is introduced as a transient secondary process to increase the overall efficiency of the motor. Furthermore, this motor produces rotational torque without using alternating magnet polarity, but rather magnetic compression that utilizes permanent magnets arranged in a dipolar manner around an axial plane.
摘要翻译：本发明涉及通过感应从磁铁产生的电流来改善电动机中的能量使用的系统和方法，该电流导致一次电力的增加，并且产生，引导和引入从电动机的初级线圈获得的逆流引入作为瞬态次级过程引入的谐振LC电路，以提高电动机的整体效率。此外，该电动机在不使用交变磁极极性的情况下产生旋转扭矩，而是使用围绕轴向平面以偶极方式布置的永磁体的磁压缩。

9. 发明授权

US07579731B2 Miniature brushless motor structure 失效
标题翻译：微型无刷电机结构
公开(公告)号：US07579731B2
公开(公告)日：2009-08-25
申请号：US11791519
申请日：2005-11-08
申请人： Eri Fukushima , Yukiharu Shimizu , Kazuya Nakamura
发明人： Eri Fukushima , Yukiharu Shimizu , Kazuya Nakamura
IPC分类号： H02K3/50 , H02K29/00 , H02K5/22
CPC分类号： H02K5/1672 , H02K3/47 , H02K5/225 , H02K2211/03
摘要： Disclosed herein is a reliable inner rotor type miniature brushless motor structure wherein, while a field coil is fixedly disposed onto the inner wall of a housing, an end flange is fixedly disposed into one end of the housing from where tap wires of the field coil are drawn out, so that the tap wires exposed from the end-flange side end of the housing can be connected to wiring substrates fixedly disposed onto the outer periphery of the end flange without the need to bend the wiring substrates, and further so that power feed lands can be large enough to reduce the likelihood of wiring breakage and other problems.
摘要翻译：本文公开了一种可靠的内转子型微型无刷电动机结构，其中，当场线圈固定地设置在壳体的内壁上时，端部凸缘固定地设置在壳体的一端中，其中励磁线圈的抽头线拉出，使得从壳体的端部凸缘侧端部暴露的丝线可以连接到固定地设置在端部凸缘的外周上的布线基板，而不需要弯曲布线基板，并且进一步使得馈电土地可以足够大，以减少接线断裂的可能性和其他问题。

10. 发明授权

US07514837B2 Brushless alternator 有权
标题翻译：无刷交流发电机
公开(公告)号：US07514837B2
公开(公告)日：2009-04-07
申请号：US11340514
申请日：2006-01-27
申请人： Motokazu Kuroda , Kyoko Higashino
发明人： Motokazu Kuroda , Kyoko Higashino
IPC分类号： H02K29/00
CPC分类号： H02K3/525 , H02K19/22
摘要： A brushless alternator includes: a rotor mounted on a shaft; a ring-shaped yoke which is opposed to the rotor via a very narrow radial clearance; a stepped portion provided on a side surface of an inner circumference of an axial end section of the yoke; a plate fixed to the stepped portion and having a cylindrical portion made of a magnetic material; a bobbin provided so as to surround a radially outer side of the cylindrical portion of the plate for the purpose of winding a field coil therearound; and a stator provided with a clearance retained on an outer side of the rotor, wherein a radial thickness of a part of the cylindrical portion which is fixed to the stepped portion provided on the inner circumferential surface of the yoke is set larger than 1 mm and not larger than 2 mm.
摘要翻译：无刷交流发电机包括：安装在轴上的转子; 环形轭，其通过非常窄的径向间隙与转子相对; 设置在所述轭的轴向端部的内周的侧面的阶梯部，固定在该阶梯部上并具有由磁性材料制成的圆筒部的板; 以围绕该板的圆筒部的径向外侧设置的绕线管，其绕组的励磁线圈为目的; 所述定子具有保持在所述转子的外侧的间隙，所述固定在设置在所述轭的内周面上的所述台阶部的圆筒部的一部分的径向厚度设定为大于1mm，不大于2mm。

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