利索-全球专利检索

  1. Login
  2. Sign Up

Search Results

1101 records (took 0.021 seconds)

    PIEZOELECTRIC ACTUATOR
    3.
    发明公开
    PIEZOELECTRIC ACTUATOR 审中-公开

    公开(公告)号：US20230240143A1

    公开(公告)日：2023-07-27

    申请号：US18071238

    申请日：2022-11-29

    Applicant: TDK CORPORATION

    Inventor： Shuto ONO ,  Satoshi SASAKI ,  Yasuyuki SATOH ,  Keiji OGUCHI

    IPC: H02K29/00

    CPC classification number: H10N30/20 ,  H10N30/87 ,  H10N30/88

    Abstract: A piezoelectric actuator includes a piezoelectric element having a rectangular shape, a first supporter, and a second supporter. The piezoelectric element includes a pair of main surfaces opposing each other, a first end surface and a second end surface opposing each other in a long side direction of the pair of main surfaces, and a first side surface and a second side surface opposing each other in a short side direction of the pair of main surfaces. The first supporter is provided to be movable according to deformation of the first end surface. The second supporter is provided to be movable according to deformation of the first side surface. The first supporter includes an opposing portion and a protruding portion. The opposing portion opposes the second supporter in the long side direction. The protruding portion protrudes from the opposing portion and abuts on the second supporter.

    Brushless motor
    5.
    发明授权
    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

    Applicant: DENSO CORPORATION

    Inventor： Akihiko Suzuki ,  Takeo Noda

    IPC: H02K11/40 ,  H02K29/00 ,  H02K5/00 ,  H02K11/33 ,  H02K21/22 ,  H02K5/173 ,  H02K5/22 ,  H02K7/08

    Abstract: 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.

    ELECTRIC TOOL
    6.
    发明申请
    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

    Applicant: Hitachi Koki Co., Ltd.

    Inventor： Hideyuki TANIMOTO

    IPC: H02K21/16 ,  B25D16/00 ,  H02K29/00 ,  H02K1/14 ,  H02K1/27 ,  H02K3/18 ,  B25D11/00 ,  B25F5/00

    CPC classification number: H02K21/16 ,  B25D11/00 ,  B25D16/00 ,  B25D2211/068 ,  B25D2250/095 ,  B25F5/00 ,  H02K1/146 ,  H02K1/2706 ,  H02K3/18 ,  H02K29/00 ,  H02K2213/03

    Abstract: 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.

    HF generator with improved solid-state switch connections
    8.
    发明授权
    HF generator with improved solid-state switch connections 有权
    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

    Applicant: Oliver Heid ,  Timothy Hughes

    Inventor： Oliver Heid ,  Timothy Hughes

    IPC: H02K29/00 ,  H01P5/02 ,  H01R24/46 ,  H01R107/00

    CPC classification number: H02K29/00 ,  H01P5/026 ,  H01R24/46 ,  H01R2107/00

    Abstract: 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.

    Abstract translation: 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。

    Circuit structure enabling upgraded MOS transistor heat dissipation ability
    9.
    发明授权
    Circuit structure enabling upgraded MOS transistor heat dissipation ability 有权
    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

    Applicant: Asia Vital Components (China) Co., Ltd.

    Inventor： Bao-Lin Yao ,  Qing-Wu Hu

    IPC: H02P6/00 ,  H02K29/00

    CPC classification number: H02K29/00 ,  H02M1/08 ,  H02M2001/327 ,  H02P27/08

    Abstract: 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.

    Abstract translation: 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。

    Direct current multi-stage motor
    10.
    发明授权
    Direct current multi-stage motor 失效
    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

    Applicant: Thomas E. Baggett

    Inventor： Thomas E. Baggett

    IPC: H02K29/00

    CPC classification number: H02K21/24 ,  H02K1/2793 ,  H02K29/08

    Abstract: 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.

    Abstract translation: 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。

Patent Agency Ranking