公开(公告)号：US06665183B1

公开(公告)日：2003-12-16

申请号：US10368993

申请日：2003-02-19

申请人： Kunio Shikata ,  Masao Katooka ,  Yoshimasa Kawashima ,  Hideo Ishii

发明人： Kunio Shikata ,  Masao Katooka ,  Yoshimasa Kawashima ,  Hideo Ishii

IPC分类号： H05K720

CPC分类号： H05K7/20918

摘要： A power supply apparatus has chassis (42, 44) mounted on opposing surfaces of a heat sink (40). Printed circuit boards (46, 48) are disposed outward of the chassis (42, 44) and detachably secured to the chassis (42, 44). Semiconductor modules (4, 16a, 16b, 32) are mounted on the respective surfaces of the heat sink (40) facing toward the printed circuit boards (46, 48) and extend through the chassis (42, 44). The semiconductor modules (4, 16a, 16b, 32) are electrically connected to the printed circuit boards (46, 48) to form a power supply circuit.

摘要翻译： 电源装置具有安装在散热器（40）的相对表面上的底盘（42,44）。 印刷电路板（46,48）设置在机架（42,44）的外侧，并可拆卸地固定在机架（42,44）上。 半导体模块（4,16a，16b，32）安装在散热器（40）的面向印刷电路板（46,48）的相应表面上并延伸通过底盘（42,44）。 半导体模块（4,16a，16b，32）电连接到印刷电路板（46,48）以形成电源电路。

公开(公告)号：US5917711A

公开(公告)日：1999-06-29

申请号：US198420

申请日：1998-11-24

申请人： Kunio Shikata ,  Haruo Moriguchi ,  Tetsuro Ikeda ,  Kenzo Danjo ,  Takeshi Omura ,  Hideo Ishii

发明人： Kunio Shikata ,  Haruo Moriguchi ,  Tetsuro Ikeda ,  Kenzo Danjo ,  Takeshi Omura ,  Hideo Ishii

IPC分类号： H05B7/18 ,  B23K9/073 ,  H02M3/155 ,  H02M3/28 ,  H02M3/335 ,  H02M7/12 ,  H02M7/217 ,  H02M9/00

CPC分类号： H02M3/33569 ,  H02M2001/0009

摘要： DC power supply apparatus includes an input-side rectifier for converting an AC signal from an AC power supply into a DC signal. A DC-to-high-frequency converter converts the DC signal into a high frequency signal in response to a control signal from a control unit. An output-side rectifier converts the high frequency signal into a DC signal and applies it to a load. An input current detector detects an input current flowing through the input-side rectifier and generates a signal representative of the input current. A load current detector detects a load current flowing through the load and generates a signal representative of the load current. The control unit receives the input-current and load-current representative signals, a reference input current signal and a reference load current signal, and provides the DC-to-high-frequency converter with the control signal such that the input-current representative signal can be equal to the reference input current signal and the load-current representative signal can be equal to the reference load current signal.

摘要翻译： 直流电源装置包括用于将来自AC电源的AC信号转换为DC信号的输入侧整流器。 DC到高频转换器响应于来自控制单元的控制信号将DC信号转换成高频信号。 输出侧整流器将高频信号转换为直流信号并将其施加到负载。 输入电流检测器检测流过输入侧整流器的输入电流并产生表示输入电流的信号。 负载电流检测器检测流过负载的负载电流并产生代表负载电流的信号。 控制单元接收输入电流和负载电流代表信号，参考输入电流信号和参考负载电流信号，并向DC到高频转换器提供控制信号，使得输入电流代表信号 可以等于参考输入电流信号，负载电流代表信号可以等于参考负载电流信号。

公开(公告)号：US06935407B2

公开(公告)日：2005-08-30

申请号：US10360359

申请日：2003-02-07

申请人： Kunio Shikata ,  Yoshiaki Komuro ,  Masayuki Ono ,  Kumiko Kurohara ,  Hideo Ishii

发明人： Kunio Shikata ,  Yoshiaki Komuro ,  Masayuki Ono ,  Kumiko Kurohara ,  Hideo Ishii

IPC分类号： B22D37/00

CPC分类号： B22D37/00

摘要： A casting apparatus has a melting pot (4) in which pieces of metal (8) to be melted is placed. A RF induction heater coil (10) is disposed in association with the melting pot (4) to heat the metal pieces (8). An inverter (18) supplies the coil (10) with high-frequency power to melt the metal pieces (8) in the melting pot (4), and the resulting molten metal is poured into a die (6). A control unit (36), after all of the metal pieces (8) having various sizes and shapes are melted, causes the operation of the inverter (18) to continue for a first time period and, after that, to suspend the operation of the inverter (18) for a second time period so that the heating can be stopped. After that, the control unit (36) causes the inverter (18) to resume its operation to heat the melted metal (8) in the melting pot (4) until the molten metal (8) assumes a predetermined state and, a third predetermined time after that, operates a melting pot driver (9) to cause the molten metal (8) to be poured into the die (6).

摘要翻译： 铸造装置具有熔化锅（4），待熔化的金属（8）被放置。 RF感应加热器线圈（10）与熔炉（4）相关联地设置以加热金属片（8）。 逆变器（18）向线圈（10）提供高频电力以熔化熔池（4）中的金属片（8），并将所得到的熔融金属倒入模具（6）中。 在具有各种尺寸和形状的所有金属片（8）熔化之后，控制单元（36）使逆变器（18）的操作第一时间持续，然后暂停操作 逆变器（18）第二时间段，使得能够停止加热。 之后，控制单元（36）使逆变器（18）恢复其操作，以加热熔炉（4）中的熔融金属（8），直到熔融金属（8）呈现预定状态，并且第三预定 之后，操作熔炉驱动器（9）以使熔融金属（8）注入模具（6）中。

公开(公告)号：US5943220A

公开(公告)日：1999-08-24

申请号：US926285

申请日：1997-09-05

申请人： Kunio Shikata ,  Masao Katooka ,  Toru Arai ,  Shigeru Okamoto ,  Kenzo Danjo

发明人： Kunio Shikata ,  Masao Katooka ,  Toru Arai ,  Shigeru Okamoto ,  Kenzo Danjo

IPC分类号： H05K5/00 ,  H02M9/00 ,  H05K5/02 ,  H05K5/03 ,  H05K5/06 ,  H05K9/00

CPC分类号： H05K5/06 ,  H05K5/0213 ,  H05K5/0247 ,  H05K7/1432

摘要： A power supply apparatus includes a front panel, a rear panel and two left and right side panels which together form a housing. Opposed edges of a partition are connected to the front and rear panels to thereby divide the interior space of the housing into upper and lower chambers. The left and right side panels each have edges which are placed to abut against the corresponding edges of the other side panel.Components of a power supply circuit are appropriately distributed in the upper and lower chambers. Some of the components in the upper chambers are located beneath the upper abutting edges of said left and right side panels, and a cover is disposed to cover at least those components which are located beneath the upper abutting edges.

摘要翻译： 电源装置包括前面板，后面板和两个左右侧面板，它们一起形成壳体。 隔板的相对的边缘连接到前面板和后面板，从而将壳体的内部空间分成上部和下部室。 左侧面板和右侧面板各自具有被放置成抵靠另一侧面板的相应边缘的边缘。 电源电路的组件适当地分布在上室和下室中。 上室中的一些部件位于所述左侧板和右侧板的上邻接边缘的下方，并且设置盖以至少覆盖位于上邻接边缘下方的那些部件。

公开(公告)号：US6051806A

公开(公告)日：2000-04-18

申请号：US236703

申请日：1999-01-25

申请人： Kunio Shikata ,  Masayuki Ono ,  Masao Katooka ,  Haruo Moriguchi ,  Tetsuro Ikeda ,  Kenzo Danjo ,  Atsushi Kinoshita ,  Fumi Noda ,  Hideo Ishii

发明人： Kunio Shikata ,  Masayuki Ono ,  Masao Katooka ,  Haruo Moriguchi ,  Tetsuro Ikeda ,  Kenzo Danjo ,  Atsushi Kinoshita ,  Fumi Noda ,  Hideo Ishii

IPC分类号： B23K9/073 ,  B23K9/095 ,  B23K9/10 ,  B23K9/12 ,  H02M9/00

CPC分类号： B23K9/0956

摘要： A power supply apparatus for welders includes an input-side AC-to-DC converter for converting an input commercial AC voltage into a DC voltage, which is, in turn, converted to a high-frequency voltage in an inverter. The high-frequency voltage is transformed to a high-frequency voltage having a desired magnitude in a transformer. The transformed high-frequency voltage is then converted back to a DC voltage in an output-side high-frequency-to-DC converter. The DC voltage is developed between output terminals of the power supply apparatus. A current detector detects the current flowing through the output terminals and develops a detected-current representative signal. A voltage detector detects the voltage between the output terminals and develops a detected-voltage representative signal. A CPU has three control modes and controls, in a first mode, the inverter in such a manner that the current representative signal becomes equal to a reference-current representative signal. In a second mode, the CPU activates and, then, deactivates a high-frequency generator, which provides a high-frequency voltage between the output terminals, and, thereafter, performs the first mode of control. In a third control mode, the CPU controls the inverter in such a manner that the voltage representative signal becomes equal to a reference-voltage representative signal and also controls a wire feeder for feeding a wire to be connected to one of the output terminals.

摘要翻译： 一种用于焊接机的电源装置包括：输入侧AC-DC转换器，用于将输入的商用AC电压转换成直流电压，然后转换成逆变器中的高频电压。 在变压器中将高频电压变换成具有期望幅度的高频电压。 然后将变换的高频电压转换回输出侧高频至直流转换器中的直流电压。 在电源装置的输出端子之间产生直流电压。 电流检测器检测流过输出端子的电流并产生检测到的电流代表信号。 电压检测器检测输出端子之间的电压并产生检测到的电压代表信号。 CPU在第一模式中具有三种控制模式和控制，即逆变器使得当前代表信号变得等于参考电流代表信号。 在第二模式中，CPU激活并且然后去激活在输出端之间提供高频电压的高频发生器，之后执行第一控制模式。 在第三控制模式中，CPU以这样的方式控制逆变器，使得代表性的代表信号变得等于参考电压代表信号，并且还控制用于馈送要连接到一个输出端子的导线的送丝机。

公开(公告)号：US6023416A

公开(公告)日：2000-02-08

申请号：US175830

申请日：1998-10-20

申请人： Kunio Shikata ,  Toru Arai ,  Toshikazu Fujiyoshi ,  Takeshi Omura

发明人： Kunio Shikata ,  Toru Arai ,  Toshikazu Fujiyoshi ,  Takeshi Omura

IPC分类号： H02M3/28 ,  H02M3/335 ,  H02M3/337 ,  H02M3/24 ,  H02M7/538

CPC分类号： H02M3/3376 ,  H02M2001/007

摘要： An input-side rectifier of a DC power supply apparatus receives and rectifies an AC voltage selected from first and second groups of AC voltages. The AC voltages in the second group are lower than those of the first group. A voltage boosting/lowering converter boosts or lowers the output voltage of the input-side rectifier to a voltage having a predetermined value. An inverter converts the output voltage of the voltage boosting/lowering converter to a high-frequency voltage. A voltage transformer transforms the high-frequency voltage from the inverter. An output-side rectifier rectifies the transformed high-frequency voltage from the transformer.

摘要翻译： 直流电源装置的输入侧整流器接收并整流从第一和第二组交流电压组中选出的交流电压。 第二组中的交流电压低于第一组的交流电压。 升压/降压转换器将输入侧整流器的输出电压升高或降低到具有预定值的电压。 逆变器将升压降压转换器的输出电压变换为高频电压。 变压器对变频器的高频电压进行变压。 输出侧整流器对变压器的变换后的高频电压进行整流。

公开(公告)号：US6152699A

公开(公告)日：2000-11-28

申请号：US980938

申请日：1997-12-01

申请人： Kunio Shikata ,  Kunio Karino ,  Toshikatsu Okada

发明人： Kunio Shikata ,  Kunio Karino ,  Toshikatsu Okada

IPC分类号： H02K9/02 ,  F04D19/00 ,  H05K7/20 ,  F04B49/00

CPC分类号： F04D19/005

摘要： A cooling apparatus for electrical equipment having heat-generating components, air-intake apertures and air-outlet apertures includes a fan, a forward-rotation power control circuit, a reverse-rotation power control circuit, an indicator, a long-term timer and a short-term timer. The forward-rotation power control circuit rotates the fan in a forward direction such that air flows in through the air-intake apertures, over the heat-generating components and away through the air-outlet apertures, in response to a forward-rotation command signal. The reverse-rotation power control circuit rotates the fan in the opposite direction. The long-term timer continuously applies the forward-rotation command signal to the forward-rotation power control circuit during a first predetermined period. The indicator indicates the expiration of the first predetermined period. When the indicator is reset, the short-term timer is enabled to continuously apply the reverse-rotation command signal to the reverse-rotation power control circuit during a second predetermined period shorter than the first predetermined period.

摘要翻译： 具有发热部件，进气孔和出气孔的电气设备的冷却装置包括风扇，正向旋转功率控制电路，反向旋转功率控制电路，指示器，长期定时器和 一个短期计时器。 正向旋转功率控制电路使风扇沿向前方向旋转，使得空气响应于正向旋转指令信号而通过空气进入孔流过发热部件并且通过出气口远离 。 反向旋转功率控制电路使风扇沿相反方向旋转。 长期定时器在第一预定时间段期间连续地将正向旋转指令信号施加到正向旋转功率控制电路。 指示符表示第一预定时段的到期。 当指示器复位时，短时间定时器能够在短于第一预定周期的第二预定时段内将反转指令信号连续地施加到反向旋转功率控制电路。