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公开(公告)号：US08823235B2
公开(公告)日：2014-09-02
申请号：US12889849
申请日：2010-09-24
申请人： Naoki Watanabe , Yuhito Doi , Takehisa Minowa , Hajime Nakamura , Koichi Hirota
发明人： Naoki Watanabe , Yuhito Doi , Takehisa Minowa , Hajime Nakamura , Koichi Hirota
IPC分类号： H02K1/27
CPC分类号： H02K1/2793 , H01F41/0293
摘要： An axial gap-type permanent magnetic rotating machine comprises a rotor comprising a rotating shaft having an axis of rotation, a rotor yoke of disc shape radially extending from the shaft, and a plurality of permanent magnet segments circumferentially arranged on a surface of the rotor yoke such that each permanent magnet segment may have a magnetization direction parallel to the axis of rotation, and a stator having a plurality of circumferentially arranged coils and disposed to define an axial gap with the rotor. In the rotor, each permanent magnet segment is an assembly of two or more divided permanent magnet pieces, and the coercive force near the surface of the magnet piece is higher than that in the interior of the magnet piece.
摘要翻译： 一种轴向间隙型永磁旋转机械，包括：转子，其包括具有旋转轴的旋转轴，从轴径向延伸的盘形转子轭，以及周向布置在转子轭的表面上的多个永磁体段 使得每个永磁体段可以具有平行于旋转轴线的磁化方向，以及具有多个周向排列的线圈并且被设置成限定与转子的轴向间隙的定子。 在转子中，每个永磁体段是两个或更多个分开的永磁体片的组件，并且磁体片表面附近的矫顽力高于磁片内部的矫顽力。
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公开(公告)号：US08695210B2
公开(公告)日：2014-04-15
申请号：US12673315
申请日：2009-11-27
CPC分类号： H01F1/01 , H01F1/047 , H01F1/0555 , H01F1/0577 , H01F1/06 , H01F41/02 , H01F41/026 , H01F41/0266 , H01F41/0293 , H02K1/278 , Y10T29/49009 , Y10T29/49075 , Y10T29/49076
摘要： A method for preparing the magnet includes the steps of: (a) providing a sintered Nd base magnet block having surfaces and a magnetization direction, (b) coating the surfaces of the magnet block excluding the surface perpendicular to the magnetization direction with a Dy or Tb oxide powder, a Dy or Tb fluoride powder, or a Dy or Tb-containing alloy powder, (c) treating the coated block at a high temperature for causing Dy or Tb to diffuse into the block, and (d) cutting the block in a plane perpendicular to the magnetization direction into a magnet segment having a coercive force distribution on the cut section that the coercive force is high at the periphery and lower toward the inside and a constant coercive force distribution in the magnetization direction.
摘要翻译： 一种制备磁体的方法包括以下步骤：（a）提供具有表面和磁化方向的烧结Nd基磁体块，（b）用与Dy或垂直于磁化方向垂直的表面涂覆磁体块的表面，或 Tb氧化物粉末，Dy或Tb氟化物粉末，或含有Dy或Tb的合金粉末，（c）在高温下处理涂层块以使Dy或Tb扩散到块中，（d） 在垂直于磁化方向的平面中，在切割部分上具有矫顽力分布的磁体部分，矫顽力在周边高度朝向内部，并且在磁化方向上具有恒定的矫顽力分布。
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公开(公告)号：US20110210810A1
公开(公告)日：2011-09-01
申请号：US12673315
申请日：2009-11-27
CPC分类号： H01F1/01 , H01F1/047 , H01F1/0555 , H01F1/0577 , H01F1/06 , H01F41/02 , H01F41/026 , H01F41/0266 , H01F41/0293 , H02K1/278 , Y10T29/49009 , Y10T29/49075 , Y10T29/49076
摘要： The invention provides a sintered Nd base magnet which is free of a decline of remanence, has a high coercive force, especially at the edges thereof, is unsusceptible to demagnetization even at high temperature, and is suited for use in permanent magnet rotary machines.
摘要翻译： 本发明提供一种烧结Nd基磁体，其不具有剩磁衰减，具有高的矫顽力，特别是在其边缘处，即使在高温下也不易消磁，并且适用于永磁旋转机。
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公开(公告)号：US20110150691A1
公开(公告)日：2011-06-23
申请号：US13033943
申请日：2011-02-24
申请人： Hajime Nakamura , Koichi Hirota , Takehisa Minowa
发明人： Hajime Nakamura , Koichi Hirota , Takehisa Minowa
CPC分类号： B22F9/023 , B22F2009/044 , B22F2998/10 , B22F2999/00 , H01F1/0577 , H01F41/0293 , H01J37/32669 , B22F9/04 , B22F3/02 , B22F3/10 , B22F2201/11 , B22F2201/02
摘要： A method for preparing a rare earth permanent magnet material comprises the steps of: disposing a powder comprising one or more members selected from an oxide of R2, a fluoride of R3, and an oxyfluoride of R4 wherein R2, R3 and R4 each are one or more elements selected from among rare earth elements inclusive of Y and Sc on a sintered magnet form of a R1—Fe—B composition wherein R1 is one or more elements selected from among rare earth elements inclusive of Y and Sc, and then heat treating the magnet form and the powder at a temperature equal to or below the sintering temperature of the magnet in vacuum or in an inert gas. The result high performance, compact or thin permanent magnet has a high remanence and coercivity at a high productivity.
摘要翻译： 一种制备稀土永磁材料的方法包括以下步骤：设置包含选自R 2的氧化物，R 3的氟化物和R 4的氟氧化物的一种或多种的粉末，其中R 2，R 3和R 4各自为一个或 从包括Y和Sc的稀土元素中选出的更多的元素是R1-Fe-B组合物的烧结磁体形式，其中R1是选自包括Y和Sc的稀土元素中的一种或多种元素，然后热处理 磁体形式和粉末，其温度等于或低于磁体在真空或惰性气体中的烧结温度。 结果，高性能，紧凑或薄的永磁体在高生产率下具有高剩磁和矫顽力。
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公开(公告)号：US20110068651A1
公开(公告)日：2011-03-24
申请号：US12562303
申请日：2009-09-18
申请人： Koji Miyata , Minori Miyata , Takehisa Minowa , Hajime Nakamura , Koichi Hirota
发明人： Koji Miyata , Minori Miyata , Takehisa Minowa , Hajime Nakamura , Koichi Hirota
IPC分类号： H02K21/14
CPC分类号： H02K21/14 , H02K1/2766 , H02K1/278 , H02K21/12
摘要： In connection with a permanent magnet rotary machine comprising a rotor comprising a rotor core and a plurality of permanent magnet segments embedded in the rotor core and a stator comprising a stator core having a plurality of slots and windings therein, the rotor and the stator being disposed to define a gap therebetween, or a permanent magnet rotary machine comprising a rotor comprising a rotor core and a plurality of permanent magnet segments mounted on the surface of the rotor core and a stator comprising a stator core having a plurality of slots and windings therein, the rotor and the stator being disposed to define a gap therebetween, the rotor wherein each of the permanent magnet segments is an assembly of further divided permanent magnet pieces, and the coercive force near the surface of the magnet piece is higher than that in the interior of the magnet piece.
摘要翻译： 与包括转子芯和嵌入在转子芯中的多个永磁体段的转子相连接的永磁旋转机构和定子包括具有多个槽和其中的绕组的定子芯，转子和定子被布置 以限定它们之间的间隙，或永久磁铁旋转机械，其包括转子，该转子包括转子芯和安装在转子芯的表面上的多个永磁体段，定子包括定子芯，该定子芯具有多个槽和绕组， 转子和定子被设置成在它们之间限定间隙，转子，其中每个永磁体段是另外分割的永久磁体块的组件，并且磁体片表面附近的矫顽力高于内部 的磁铁片。
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公开(公告)号：US07866745B2
公开(公告)日：2011-01-11
申请号：US12097052
申请日：2005-12-12
申请人： Koichi Hirota , Hitoshi Takayanagi
发明人： Koichi Hirota , Hitoshi Takayanagi
CPC分类号： B60N2/865 , B60N2/002 , B60N2/0224 , B60N2/888
摘要： A head rest rear portion is supported to a seat back. A head rest front portion is movable forward and backward between a full-close position that is brought into contact with or close to the head rest rear portion and a full-open position that is a predetermined distance away from the head rest rear portion. A drive mechanism moves the head rest front portion. A detection sensor provided in the head rest front portion includes an electrode having a head portion detecting antenna electrode for detecting a head portion of an occupant at a time when the head rest front portion moves in the full-open position direction, and a finger detecting antenna electrode for detecting a finger of the occupant in a rear seat or the like at a time when the head rest front portion moves in the full-close position direction.
摘要翻译： 头枕后部支撑在座椅靠背上。 头枕前部可在与头枕后部接触或靠近头枕后部的完全关闭位置和远离头枕后部的预定距离的全开位置之间向前和向后移动。 驱动机构使头枕前部移动。 设置在头枕前部的检测传感器包括：电极，其具有头部检测用天线电极，用于在头枕前部沿全开位置方向移动时检测乘员的头部;以及手指检测 天线电极，用于在头枕前部在全关位置方向上移动时检测后座椅等中的乘员的手指。
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公开(公告)号：US07770967B2
公开(公告)日：2010-08-10
申请号：US12093731
申请日：2006-11-15
申请人： Koichi Hirota , Koji Ito , Motomi Iyoda , Tatsuhiro Okawa , Fumitoshi Akaike , Seiya Nishimura
发明人： Koichi Hirota , Koji Ito , Motomi Iyoda , Tatsuhiro Okawa , Fumitoshi Akaike , Seiya Nishimura
IPC分类号： A47C7/38 , B60N2/42 , B60N2/48 , B60R21/015
CPC分类号： B60N2/0244 , B60N2/002 , B60N2/862 , B60N2/888 , B60N2002/0268
摘要： A head rest device that improves reliability of detecting a head on the basis of a change in capacitance without complicating a wiring structure. A head rest device is provided with a head rest rear portion configured to be supported to a seat back, and a head rest front portion freely moving forward and backward between a fully-closed position coming close to the head rest rear portion and a fully-open position separated from the head rest rear portion. The head rest front portion is moved by an actuator. The head rest front portion has a sensor electrode structured such that its capacitance is changed as a head of an occupant approaches, and an ECU controlling the actuator so as to move the head rest front portion and detecting the approach of the head of the occupant on the basis of a change of the capacitance of the sensor electrode thereon.
摘要翻译： 一种头枕装置，其提高了基于电容变化来检测头部的可靠性，而不会使布线结构复杂化。 头枕装置设置有头枕后部，其被配置为支撑在座椅靠背上，头枕前部在靠近头枕后部的完全关闭位置之间自由移动， 打开位置与头枕后部分离。 头枕前部由致动器移动。 头枕前部具有传感器电极，其结构使得其电容随着乘员的头部接近而变化，并且ECU控制致动器以移动头枕前部并且检测乘员头部的接近 其上的传感器电极的电容的变化的基础。
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公开(公告)号：US20100191426A1
公开(公告)日：2010-07-29
申请号：US12656187
申请日：2010-01-20
申请人： Takayuki Miyajima , Koichi Hirota
发明人： Takayuki Miyajima , Koichi Hirota
CPC分类号： B60N2/0244 , B60N2/986 , B60N2002/026
摘要： Devices, methods, and programs control a seat drive mechanism that drives side support parts of a seat. The devices, methods, and programs detect a first curve ahead of a vehicle and a second curve located ahead of the first curve with respect to a travel direction. The devices, methods, and programs predict a between-curves time required to travel between the first curve and the second curve and determine whether the between-curves time is less than a predetermined time, the predetermined time being no less than a time necessary for the side support parts to operate. The devices, methods, and programs control the seat drive mechanism to arrange the side support parts at an action position to support a body of an occupant for the first curve. If the between-curves time is less than the predetermined time, the devices, methods, and programs maintain the side support parts at the action position while traveling the second curve.
摘要翻译： 设备，方法和程序控制驱动座椅的侧支撑部件的座椅驱动机构。 装置，方法和程序检测车辆前方的第一曲线和相对于行进方向位于第一曲线之前的第二曲线。 装置，方法和程序预测在第一曲线和第二曲线之间行进所需的曲线之间的时间，并确定曲线之间的时间是否小于预定时间，预定时间不小于 侧面支撑部件进行操作。 装置，方法和程序控制座椅驱动机构以将侧支撑部件布置在作用位置以支撑第一曲线的乘员身体。 如果曲线之间的时间小于预定时间，则在行进第二曲线时，装置，方法和程序将侧支撑部件保持在动作位置。
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公开(公告)号：US07520941B2
公开(公告)日：2009-04-21
申请号：US11340496
申请日：2006-01-27
CPC分类号： H01F1/0577 , H01F1/058 , H01F41/0266 , H01F41/0293
摘要： A functionally graded rare earth permanent magnet is in the form of a sintered magnet body having a composition R1aR2bTcAdFeOfMg wherein the concentration of R2/(R1+R2) contained in grain boundaries surrounding primary phase grains of (R1,R2)2T14A tetragonal system within the sintered magnet body is on the average higher than the concentration of R2/(R1+R2) contained in the primary phase grains, R2 is distributed such that its concentration increases on the average from the center toward the surface of the magnet body, the oxyfluoride of (R1,R2) is present at grain boundaries in a grain boundary region that extends from the magnet body surface to a depth of at least 20 μm, and the magnet body includes a surface layer having a higher coercive force than in the interior. The invention provides permanent magnets having improved heat resistance.
摘要翻译： 功能梯度稀土永磁体是具有组成R1aR2bTcAdFeOfMg的烧结磁体的形式，其中包含在（R1，R2）2T14A四方晶系的主晶相周围的晶界中的R2 /（R1 + R2）的浓度在 烧结磁体平均高于主晶粒中所含的R2 /（R1 + R2）的浓度，R2分布成使得其浓度从中心向磁体的平均值增加，氟氧化物 （R1，R2）存在于从磁体表面延伸至至少20μm的深度的晶界区域的晶界处，并且磁体包括具有比内部更高的矫顽力的表面层。 本发明提供了具有改善的耐热性的永磁体。
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公开(公告)号：US20090096468A1
公开(公告)日：2009-04-16
申请号：US12094166
申请日：2006-11-10
申请人： Koichi Hirota , Koji Aoki , Manabu Tsuruta , Kiyoka Matsubayashi , Motomi Iyoda , Tatsuhiro Okawa , Fumitoshi Akaike
发明人： Koichi Hirota , Koji Aoki , Manabu Tsuruta , Kiyoka Matsubayashi , Motomi Iyoda , Tatsuhiro Okawa , Fumitoshi Akaike
CPC分类号： B60N2/0276 , B60N2/002 , B60N2/865 , B60N2/888
摘要： When moving a head rest front portion in a full-open position direction, an ECU determines that the head rest front portion comes close to an occupant head portion on the basis of a detection result of an electrostatic capacitance sensor so as to stop the head rest front portion, and determines that the head rest front portion comes close to the occupant head portion on the basis of an absolute capacitance change with respect to a reference electrostatic capacitance value of the electrostatic capacitance sensor. Alternatively, the ECU determines that the head rest front portion comes close to the occupant head portion on the basis of a change amount of the electrostatic capacitance value of the electrostatic capacitance sensor.
摘要翻译： 当在全开位置方向移动头枕前部时，ECU基于静电电容式传感器的检测结果，判定头枕前部靠近乘员头部，以便停止头枕 并且基于相对于静电电容传感器的基准静电电容值的绝对电容变化，确定头枕前部靠近乘员头部。 或者，ECU基于静电电容式传感器的静电电容值的变化量，判定头枕前部靠近乘员头部。
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