公开(公告)号：US5173651A

公开(公告)日：1992-12-22

申请号：US220070

申请日：1988-07-15

申请人： Maurice Buckley ,  Arthur Stone ,  Aengus Murray

发明人： Maurice Buckley ,  Arthur Stone ,  Aengus Murray

IPC分类号： H02K29/08 ,  H02P6/06

CPC分类号： H02P6/06 ,  H02K29/08 ,  H02P2209/07

摘要： A direct current brushless electric motor has a rotor, and a stator with inwardly extending teeth, between each pair of which a winding slot is defined. The radially inward face of each tooth has a dummy slot shaped so the reluctance forces between rotor and stator due to the presence of the dummy slots are the same as those due to the winding slots. Motor control arrangement incorporates a current feedback loop based on the incoming phase of each phase combination in the phase energization sequence in a driving mode and phase changeover may be initiated by Hall devices, two for each transition point, underlying the axial ends of the rotor magnets. The control arrangement may incorporate a pulse width modulation power supply permitting the establishment of bias currents under motor standstill conditions.

摘要翻译： 直流无刷电动机具有转子和具有向内延伸的齿的定子，每一对之间限定有绕组槽。 每个齿的径向向内的表面具有一个虚拟的槽，其形状使得由于存在虚拟槽而导致转子和定子之间的磁阻力与由于绕组槽所引起的相同。 电动机控制装置包括基于驱动模式的相通电序列中每相组合的进入相位的电流反馈回路，相位切换可以由霍尔装置启动，每个转换点两个转子位于转子磁体的轴向端部下方 。 控制装置可以包括允许在电机静止状态下建立偏置电流的脉宽调制电源。

公开(公告)号：US4729160A

公开(公告)日：1988-03-08

申请号：US765507

申请日：1985-08-14

申请人： Gerald W. Brown

发明人： Gerald W. Brown

IPC分类号： H02K1/27 ,  H02K15/02

CPC分类号： H02K1/278 ,  H02K15/03 ,  Y10T29/49012 ,  Y10T29/49865

摘要： In an electric motor having a plurality of magnets bonded to a rotor hub, a composite sleeve is disposed over the rotor hub and magnets. The composite sleeve may be wound directly upon the rotor hub, or the composite sleeve may be wound upon a mandrel and slid over the rotor hub.

公开(公告)号：US4711026A

公开(公告)日：1987-12-08

申请号：US756722

申请日：1985-07-19

申请人： Brian E. Swiggett ,  Ronald Morino ,  Raymond J. Keogh ,  Jonathan C. Crowell ,  George Czenczy ,  Andrew J. Schoenberg ,  Marju L. Friedrich

发明人： Brian E. Swiggett ,  Ronald Morino ,  Raymond J. Keogh ,  Jonathan C. Crowell ,  George Czenczy ,  Andrew J. Schoenberg ,  Marju L. Friedrich

IPC分类号： H05K3/46 ,  H05K3/10 ,  H05K3/22 ,  H05K3/38 ,  H05K3/42 ,  H05K7/06 ,  H01K3/10

CPC分类号： H05K3/103 ,  H05K3/222 ,  H05K7/06 ,  H05K2201/10287 ,  H05K2203/0746 ,  H05K2203/0776 ,  H05K2203/107 ,  H05K2203/1105 ,  H05K3/386 ,  H05K3/429 ,  Y10T29/49162

摘要： This invention relates to interconnection circuit boards and processes for making and modifying interconnection circuit boards wherein adhesive is applied to a wire used in scribing a conductor pattern. The adhesive is activated to a tacky state during the wire scribing operation which forms the conductor pattern, and can thereafter be cured to permanently bond the conductors to the board surface.

摘要翻译： 本发明涉及互连电路板和用于制造和修改互连电路板的方法，其中将粘合剂施加到用于划线导体图案的导线上。 在形成导体图案的线划线操作期间，粘合剂被激活到发粘状态，然后可以将其固化以将导体永久地结合到板表面。

公开(公告)号：US4686437A

公开(公告)日：1987-08-11

申请号：US909031

申请日：1986-09-17

申请人： Lawrence W. Langley ,  H. Keith Kidd

发明人： Lawrence W. Langley ,  H. Keith Kidd

IPC分类号： H02P6/08 ,  H02P23/00 ,  H02K29/00

CPC分类号： H02P6/085 ,  H02P23/0077

摘要： An electromechanical energy conversion system comprising a brushless motor and a stored program controller for controlling motor operation in a plurality of modes in accordance with internally generated and/or external commands.

摘要翻译： 一种机电能量转换系统，其包括无刷电动机和存储的程序控制器，用于根据内部产生的和/或外部命令以多种模式控制电机操作。

公开(公告)号：US4683036A

公开(公告)日：1987-07-28

申请号：US800360

申请日：1985-11-21

申请人： Denis M. Morrissey ,  Peter E. Takach ,  Rudolph J. Zeblisky

发明人： Denis M. Morrissey ,  Peter E. Takach ,  Rudolph J. Zeblisky

IPC分类号： C25D5/54 ,  H05K3/42

CPC分类号： H05K3/424 ,  C25D5/54 ,  H05K2203/173 ,  H05K3/427 ,  Y10T29/49165

摘要： Method for electroplating non-metallic surfaces on a substrate, e.g. of plating holes in metal clad laminates, is disclosed. Metallic sites are formed on the surface and the resulting site-containing surface is electroplated by means of an electroplating bath comprising a component which causes the plating to preferentially occur at said sites in comparison to the plating on surfaces of the same metal as the one plated out; whereby a rate differential of the plating-reaction on site-surfaces is achieved with respect to the plating-reaction on a surface consisting of the metal to be plated out.

摘要翻译： 在基板上电镀非金属表面的方法，例如 公开了金属覆层压板中的电镀孔。 在表面上形成金属部位，并且通过电镀浴电镀所得到的含有部位的表面，所述电镀浴包括与镀覆的相同金属的表面上的电镀相比，所述电镀使所述电镀优先发生在所述部位 出来 由此，在由被镀覆的金属构成的表面上的电镀反应实现了现场表面的电镀反应的速率差。

公开(公告)号：US4682093A

公开(公告)日：1987-07-21

申请号：US789036

申请日：1985-10-18

申请人： John Murphy ,  Francis McMullin ,  Michael Egan ,  John V. Byrne ,  Patrick Kenneally

发明人： John Murphy ,  Francis McMullin ,  Michael Egan ,  John V. Byrne ,  Patrick Kenneally

IPC分类号： H02P8/16 ,  H02P25/08 ,  H02P7/36

CPC分类号： H02P25/0925 ,  H02P25/092

摘要： In a power supply system, an inductance L is connected between a rail at a voltage V.sub.1 and a rail at earth through a switch S. When the switch is opened, a current i.sub.2 flowing from the inductance L is directed to a third rail through a diode D, voltage on the third rail rising to V.sub.2. The system may function as a dc to dc converter with an output voltage between the V.sub.1 rail and V.sub.2 rail equal to V.sub.2 -V.sub.1. The system may alternatively be used in, for example, a reluctance motor drive, in which case a further inductance with associated switch and diode is included in the circuit in inverse configuration to prevent excessive voltage rise on the third rail.

摘要翻译： 在电源系统中，电感L通过开关S连接在电压V1的轨道和地线的轨道之间。当开关断开时，从电感L流出的电流i2通过 二极管D，第三条电压升至V2。 该系统可以作为直流 - 直流转换器，V1导轨和V2导轨之间的输出电压等于V2-V1。 该系统可以替代地用在例如磁阻电动机驱动器中，在这种情况下，具有相关开关和二极管的另外的电感被反向配置在电路中，以防止在第三导轨上产生过大的电压上升。

公开(公告)号：US4572999A

公开(公告)日：1986-02-25

申请号：US504121

申请日：1983-06-14

申请人： Philip S. Coulon, Jr.

发明人： Philip S. Coulon, Jr.

IPC分类号： G01P3/46 ,  G05B5/01

CPC分类号： G01P3/465 ,  Y10S322/05

摘要： A brushless tachometer in which output signal switching is achieved using field effect transistors and which is capable of achieving linearity over a broad range, particularly the zero speed region. According to a preferred embodiment, the brushless tachometer is operated in a current mode as part of the servo loop to substantially reduce tachometer voltage switching requirements. A ROM can be used to control commutation switching. Commutation is preferable line-to-neutral to reduce ripple.

摘要翻译： 一种无刷转速计，其中使用场效应晶体管实现输出信号切换，并且能够在宽范围，特别是零速度区域上实现线性度。 根据优选实施例，无刷转速计作为伺服回路的一部分以电流模式运行，以显着降低转速计电压切换要求。 可以使用ROM来控制换向切换。 换向优于线到中线，以减少纹波。

公开(公告)号：US4562399A

公开(公告)日：1985-12-31

申请号：US504072

申请日：1983-06-14

申请人： Robert L. Fisher

发明人： Robert L. Fisher

IPC分类号： H02K29/06 ,  H02K39/00 ,  G01P3/48 ,  H02K21/12 ,  H02P9/00

CPC分类号： H02K29/06

摘要： An alternator for use in a brushless DC tachometer which produces are output voltage with a trapezoidal waveshape. The alternator includes a three phase toroidal winding on a plotless core. The windings are concentrated rather than being distributed. The rotor includes high intensity permanent magnets configured to provide uniform flux density over a large segment at least equal to a commutation increment.

摘要翻译： 用于无刷直流转速计的交流发电机，其产生具有梯形波形的输出电压。 交流发电机在无地磁芯上包括三相环形绕组。 绕组集中而不是分布。 转子包括高强度永磁体，其被配置为在至少等于换向增量的大段上提供均匀的通量密度。

公开(公告)号：US4504607A

公开(公告)日：1985-03-12

申请号：US401153

申请日：1982-07-22

申请人： Edward J. Leech

发明人： Edward J. Leech

IPC分类号： C09D5/00 ,  H05K3/00 ,  H05K3/28 ,  C08L63/00 ,  C08L63/10

CPC分类号： C09D5/008 ,  H05K3/0076 ,  H05K3/285 ,  H05K2201/0166 ,  H05K2201/0209 ,  H05K2203/1105 ,  Y10S428/901

摘要： A resinous protective coating useful in the manufacture of printed circuit boards with circuit patterns having a resolution of at least 0.25 mm lines and spaces thereon. The protective coating comprises resins dissolved in solvents, wherein the coating upon being subjected to heat goes from a high viscosity solution to a gel and then to a solid or from a soft "gel-like" state into a solid. The protective coating is resistant to copper electroplating baths, adheres to insulating substrates, adhesive coated base materials as well as metallic substrates and is capable of withstanding the thermal shock of dip soldering.

摘要翻译： 用于制造印刷电路板的树脂保护涂层，其电路图案具有至少0.25mm的线分辨率和空间。 保护涂层包括溶解在溶剂中的树脂，其中经受热的涂层从高粘度溶液到凝胶，然后从固体或从软的“凝胶状”状态进入固体。 保护涂层耐铜电镀浴，粘附到绝缘基材，粘合剂涂覆的基材和金属基材上，并能够承受浸焊的热冲击。

公开(公告)号：US4339303A

公开(公告)日：1982-07-13

申请号：US223944

申请日：1981-01-12

申请人： David C. Frisch ,  Wilhelm Weber

发明人： David C. Frisch ,  Wilhelm Weber

IPC分类号： C23C18/20 ,  B29C35/08 ,  B29C71/02 ,  B29C71/04 ,  C08J7/00 ,  H05K1/03 ,  H05K3/00 ,  B44C1/22 ,  C03C15/00 ,  C03C25/06 ,  C23F1/02

CPC分类号： H05K3/0011 ,  B29C71/02 ,  B29C71/04 ,  B29C2035/0822 ,  B29C2035/0827 ,  B29C2035/0855 ,  B29C2071/022 ,  B29K2081/00 ,  B29K2081/06 ,  H05K2201/0129 ,  H05K2201/09118 ,  H05K2203/0783 ,  H05K2203/102 ,  Y10S428/901 ,  Y10T29/49165 ,  Y10T428/24273 ,  Y10T428/24322

摘要： A method of rapidly relieving stress in an article comprised of a sulfone polymer is disclosed. The method can be used in the preparation of printed circuit boards. An article comprised of a sulfone polymer is exposed to electromagnetic radiation, for a time period sufficient to absorb enough energy to stress relieve the sulfone polymer against stress cracking therein. Exposure occurs at one or more ranges of frequencies which are capable of being absorbed by the sulfone polymer and which are effective for stress relieving without or substantially without causing heat induced softening or flowing of the sulfone polymer. The electromagnetic radiation is selected from the ranges of infrared, microwave and ultraviolet radiation.

摘要翻译： 公开了一种在由砜聚合物组成的制品中快速缓解应力的方法。 该方法可用于制备印刷电路板。 由砜聚合物组成的制品暴露于电磁辐射，时间足以吸收足够的能量以缓解砜聚合物在其中的应力开裂。 曝光发生在能够被砜聚合物吸收的一个或多个频率范围，并且对于在没有或基本上不引起热引起的砜聚合物的软化或流动的情况下有效应力消除。 电磁辐射选自红外线，微波和紫外线辐射。