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1.发明授权Magnetic circuit structure, and power-generating device and electronic device using the same 失效磁路结构，发电装置及使用该装置的电子装置公开(公告)号：US06800983B1
公开(公告)日：2004-10-05
申请号：US09647973
申请日：2000-10-06
申请人： Yoshitaka Iijima , Kinya Matsuzawa
发明人： Yoshitaka Iijima , Kinya Matsuzawa
IPC分类号： H02K112
CPC分类号： H02K7/1853 , G04C10/00 , H02K1/143
摘要： Opposing concave structures formed in an end portion 22b of a stator yoke 22 and an end portion 23b of a magnetic core 23 are mated in a staggered manner and are joined. An upper projecting portion 22b-1 of the stator yoke 22 is fitted in a recessed portion formed on a lower projecting portion 23b-2 of the magnetic core 23, and the lower projecting portion 23b-2 of the magnetic core 23 is fitted in a recessed portion formed under the upper projecting portion 22b-1 of the stator yoke 22. In this state, the stator yoke 22 and the magnetic core 23 are fixedly fastened by a joint screw 24 and a tube 26. This structure makes it possible to reduce magnetic resistance in a magnetic circuit structure and to improve power-generating efficiency of a power-generating device using the structure.
摘要翻译： 形成在定子磁轭22的端部22b和磁芯23的端部23b上的相对的凹形结构以交错的方式配合并接合。 定子磁轭22的上突出部分22b-1装配在形成在磁芯23的下突出部分23b-2上的凹陷部分中，并且磁芯23的下突出部分23b-2被安装在 凹陷部分形成在定子磁轭22的上突出部分22b-1的下方。在这种状态下，定子磁轭22和磁芯23通过接头螺钉24和管26固定紧固。这种结构使得可以减少 并且提高使用该结构的发电装置的发电效率。
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公开(公告)号：US08045735B2
公开(公告)日：2011-10-25
申请号：US11596759
申请日：2005-04-07
IPC分类号： H04R25/00
CPC分类号： H04R17/005 , H04R2217/03
摘要： An ultrasonic transducer includes: a pair of fixed electrodes including a conductive member; a vibrating film having a conductive layer; and a member which holds the pair of fixed electrodes and the vibrating film. The vibrating film is formed of nonconductive bodies and has an electrode layer formed of a conductive material. The electrode layer is applied with a DC bias voltage of a single polarity by a DC bias supply, and is also applied with an AC signal output from a signal source superimposed on the DC bias voltage. The pair of fixed electrodes have a plurality of holes of the same number at positions facing each other via the vibrating film, and an AC signal is applied between the conductive members of the pair of fixed electrodes by the signal source.
摘要翻译： 超声波换能器包括：一对固定电极，包括导电部件; 具有导电层的振动膜; 以及保持该对固定电极和振动膜的构件。 振动膜由非导电体形成并具有由导电材料形成的电极层。 电极层通过直流偏置电源施加单极性的直流偏置电压，并且还施加从叠加在直流偏置电压上的信号源输出的交流信号。 一对固定电极在经由振动膜彼此相对的位置处具有相同数量的多个孔，并且通过信号源在一对固定电极的导电构件之间施加AC信号。
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公开(公告)号：US20050281420A1
公开(公告)日：2005-12-22
申请号：US11155033
申请日：2005-06-16
CPC分类号： B06B1/0292 , G10K11/28 , H02N1/006 , H04R17/005 , H04R2217/03
摘要： An ultrasonic speaker including: a vibration film having a conductive layer; a pair of fixed electrodes provided oppositely to respective surfaces of the vibration film; and an ultrasonic transducer that causes the vibration film to generate sound waves by applying a DC bias voltage to the conductive layer of the vibration film while applying an alternating signal between the pair of fixed electrodes, and outputs the sound waves generated by the vibration film from two sound wave output surfaces via through-holes provided in each of the pair of fixed electrodes. The two sound wave output surfaces of the ultrasonic transducer are disposed in a direction intersecting with a sound wave emitting direction at right angles. Also, sound wave reflection plates are provided to both of the two sound wave output surfaces of the ultrasonic transducer so that the sound waves outputted from each of the two sound wave output surfaces are reflected in the sound wave emitting direction.
摘要翻译： 一种超声波扬声器，包括：具有导电层的振动膜; 与振动膜的各个表面相对设置的一对固定电极; 以及超声波换能器，其通过在所述一对固定电极之间施加交变信号的同时向所述振动膜的导电层施加DC偏置电压而使所述振动膜产生声波，并且将由所述振动膜产生的声波输出 两个声波输出表面通过设置在每对固定电极中的通孔。 超声波换能器的两个声波输出面以与声波发射方向成直角相交的方向配置。 此外，声波反射板被提供给超声波换能器的两个声波输出表面中的两个，使得从两个声波输出表面中的每一个输出的声波在声波发射方向上被反射。
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公开(公告)号：US06541882B2
公开(公告)日：2003-04-01
申请号：US09754970
申请日：2001-01-05
申请人： Kinya Matsuzawa
发明人： Kinya Matsuzawa
IPC分类号： H02K3700
CPC分类号： H02K21/185 , G04C10/00 , Y10T29/49009
摘要： Inner notches (225A, 226A) for adjusting the cogging torque of a rotor (21) are formed on a stator (22) in a small-size power generator (20). Since the inner notches (225A, 226A) are formed on an inner periphery of a rotor accommodation hole (230) within an angular range of ±45° around a magnetic flux direction of a first magnetic circuit (100) having a smaller magnetic reluctance at a rotation center of the rotor (21), the cogging torque can be effectively reduced. Accordingly, even when the size of components such as an oscillating weight and a power spring is reduced for making a thin timepiece, rotation startability of the rotor can be improved, thus improving power generation efficiency of the small-size power generator.
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公开(公告)号：US08126171B2
公开(公告)日：2012-02-28
申请号：US11677485
申请日：2007-02-21
申请人： Hirokazu Sekino , Kinya Matsuzawa , Hideki Kojima
发明人： Hirokazu Sekino , Kinya Matsuzawa , Hideki Kojima
IPC分类号： H04R25/00
CPC分类号： H04R19/013 , H04R7/045
摘要： An electrostatic ultrasonic transducer includes a first electrode that has through-holes, a second electrode that has through-holes, and a vibrating membrane that is disposed such that the through-holes of the first electrode and the through-holes of the second electrode form a pair, interposed between a pair of electrodes composed of the first electrode and the second electrode, and having a conductive layer applied with a direct current bias voltage. The first electrode and the second electrode each have counter electrode portions that are formed in the through-holes to face the vibrating membrane, and a modulated wave, which is obtained by modulating a carrier wave in an ultrasonic frequency band with a signal wave in an audible frequency band, is applied between the pair of electrodes.
摘要翻译： 静电超声波换能器包括具有通孔的第一电极，具有通孔的第二电极和设置成使得第一电极的通孔和第二电极的通孔形成的振动膜 一对插入在由第一电极和第二电极组成的一对电极之间，并且具有施加有直流偏置电压的导电层。 第一电极和第二电极各自具有形成在通孔中的面对振动膜的对电极部分，并且通过在信号波中调制超声波频带中的载波而获得的调制波 可听频带施加在该对电极之间。
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公开(公告)号：US08009846B2
公开(公告)日：2011-08-30
申请号：US12488789
申请日：2009-06-22
CPC分类号： B06B1/0292 , G10K11/28 , H02N1/006 , H04R17/005 , H04R2217/03
摘要： An ultrasonic speaker including: a vibration film having a conductive layer; a pair of fixed electrodes provided oppositely to respective surfaces of the vibration film; and an ultrasonic transducer that causes the vibration film to generate sound waves by applying a DC bias voltage to the conductive layer of the vibration film while applying an alternating signal between the pair of fixed electrodes, and outputs the sound waves generated by the vibration film from two sound wave output surfaces via through-holes provided in each of the pair of fixed electrodes. The two sound wave output surfaces of the ultrasonic transducer are disposed in a direction intersecting with a sound wave emitting direction at right angles.
摘要翻译： 一种超声波扬声器，包括：具有导电层的振动膜; 与振动膜的各个表面相对设置的一对固定电极; 以及超声波换能器，其通过在所述一对固定电极之间施加交变信号的同时向所述振动膜的导电层施加DC偏置电压而使所述振动膜产生声波，并且将由所述振动膜产生的声波输出 两个声波输出表面通过设置在每对固定电极中的通孔。 超声波换能器的两个声波输出面以与声波发射方向成直角相交的方向配置。
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公开(公告)号：US20090257606A1
公开(公告)日：2009-10-15
申请号：US12488789
申请日：2009-06-22
IPC分类号： H04R1/00
CPC分类号： B06B1/0292 , G10K11/28 , H02N1/006 , H04R17/005 , H04R2217/03
摘要： An ultrasonic speaker including: a vibration film having a conductive layer; a pair of fixed electrodes provided oppositely to respective surfaces of the vibration film; and an ultrasonic transducer that causes the vibration film to generate sound waves by applying a DC bias voltage to the conductive layer of the vibration film while applying an alternating signal between the pair of fixed electrodes, and outputs the sound waves generated by the vibration film from two sound wave output surfaces via through-holes provided in each of the pair of fixed electrodes. The two sound wave output surfaces of the ultrasonic transducer are disposed in a direction intersecting with a sound wave emitting direction at right angles.
摘要翻译： 一种超声波扬声器，包括：具有导电层的振动膜; 与振动膜的各个表面相对设置的一对固定电极; 以及超声波换能器，其通过在所述一对固定电极之间施加交变信号的同时向所述振动膜的导电层施加DC偏置电压而使所述振动膜产生声波，并且将由所述振动膜产生的声波输出 两个声波输出表面通过设置在每对固定电极中的通孔。 超声波换能器的两个声波输出面以与声波发射方向成直角相交的方向配置。
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公开(公告)号：US07191655B2
公开(公告)日：2007-03-20
申请号：US10916210
申请日：2004-08-11
申请人： Kinya Matsuzawa
发明人： Kinya Matsuzawa
IPC分类号： G01N29/18
CPC分类号： G01N29/4436 , G01N29/11 , G01N29/348 , G01N2291/0289 , G01N2291/044 , G01N2291/101
摘要： A structure including an ultrasonic transducer, a material database, and a material determination section. The ultrasonic transducer transmits ultrasound signals of a plurality of frequencies toward a printing paper over a frequency band covering 40 kHz to 100 kHz or more, and receives reflection signals. The material database stores information representing a reception signal on a material basis. The material determination section makes a material determination for the printing paper based on the information stored in the material database, and the signal (signal derived by amplifying a signal) received by the ultrasonic transducer.
摘要翻译： 包括超声换能器，材料数据库和材料确定部分的结构。 超声波换能器在覆盖40kHz〜100kHz以上的频带上向打印纸发送多个频率的超声信号，并接收反射信号。 材料数据库以材料的形式存储表示接收信号的信息。 材料确定部分基于存储在材料数据库中的信息和由超声波换能器接收的信号（通过放大信号得到的信号）对打印纸进行材料确定。
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公开(公告)号：US5952760A
公开(公告)日：1999-09-14
申请号：US968889
申请日：1997-11-06
申请人： Hiroshi Miyazawa , Kinya Matsuzawa , Norio Ito , Yasushi Soya , Koichi Saito
发明人： Hiroshi Miyazawa , Kinya Matsuzawa , Norio Ito , Yasushi Soya , Koichi Saito
摘要： A brushless DC motor, whose stator (10) is a combination of stator yokes (11, 16), a bobbin (14) on which a magnetic field coil (15) is wound and to which terminal pins are provided, and a base plate (20). The stator (10) is fixed to the base plate (20) by a protrusion (12c) provided on the bobbin (14) or by a flange (18a) formed on a bearing. The widths of magnetic poles (11a, 16a) of the stator, which are measured in the circumferential direction of the stator, are smaller than the width of one of the poles of a rotor magnet (5). Thereby, the position of a stable point is a maximum excitation torque position. Further, a magnetic pole sensing element (21) is provided at a place which is shifted in the circumferential direction from the middle position of one of the magnetic poles of the rotor magnet (5).
摘要翻译： 一种无刷直流电动机，其定子（10）是定子轭（11,16）的组合，缠绕有磁场线圈（15）的绕线管（14）和设置有端子销的基板 （20）。 定子（10）通过设置在线轴（14）上的突起（12c）或形成在轴承上的凸缘（18a）固定到基板（20）。 在定子的圆周方向上测量的定子的磁极（11a，16a）的宽度小于转子磁体（5）的一个极的宽度。 因此，稳定点的位置是最大励磁转矩位置。 此外，在从转子磁体（5）的一个磁极的中间位置沿周向偏移的位置设置有磁极检测元件（21）。
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公开(公告)号：US5903074A
公开(公告)日：1999-05-11
申请号：US915582
申请日：1997-08-21
申请人： Kinya Matsuzawa , Hiroshi Miyazawa , Norio Ito
发明人： Kinya Matsuzawa , Hiroshi Miyazawa , Norio Ito
摘要： In a radial gap type brushless DC motor having a motor structure for generating a starting torque and lowering rotational speed fluctuation by forming either one of a pair of upper and lower (right and left) claw poles to have a smaller interval in the circumferential direction with respect to the other claw pole, shifting the position of the upper or lower claw poles toward the rotating direction of the rotor from the middle position of the other claw pole and claw pole, and setting a ratio (a/p) of the claw pole width a and the pole pitch p, a ratio (b/a) of the claw pole width a and the claw pole width b, and a ratio (c/d) of the claw pole pitch c and the claw pole pitch d to fall in a prescribed range, a method for driving a motor forms the generated torque cycle of a cogging torque generated between a permanent magnet rotor (2) and a stator into large and small torque waves, and switches the current of a coil (12) at a high peak of absolute quantity or in the vicinity thereof among a plurality of positive peaks of the cogging torque. Further, a method for driving a motor wherein the coil current is switched at a position where the excited torque generated by the coil current becomes zero or in its vicinity. And, a method for driving a motor wherein the coil current is switched in a vicinity of a positive peak of the cogging torque and giving a no-current passing period when switching the coil current.
摘要翻译： 在具有电动机结构的径向间隙型无刷直流电动机中，该电动机结构用于通过形成一对上下（左右）爪极中的任意一个以在圆周方向上具有较小间隔而产生起动转矩和降低转速波动， 相对于另一个爪极，从另一个爪极和爪极的中间位置将上下爪爪的位置朝向转子的旋转方向移动，并且设定爪极的比（a / p） 宽度a和极间距p，爪极宽度a和爪极宽度b的比率（b / a）以及爪极间距c和爪极间距d的比（c / d）下降 在规定的范围内，用于驱动电动机的方法将产生在永磁体转子（2）和定子之间的齿槽转矩的产生的转矩循环形成为大的和小的转矩波，并且将线圈（12）的电流切换到 绝对数量高峰或其附近的高峰 g齿槽转矩的多个正峰值。 此外，一种用于驱动电动机的方法，其中线圈电流在由线圈电流产生的激励转矩变为零或其附近的位置处切换。 而且，一种用于驱动电动机的方法，其中线圈电流在齿槽转矩的正峰值附近被切换并且在切换线圈电流时给出无电流通过时段。
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