专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20050109749A1 Power supply apparatus 有权
标题翻译：电源设备
公开(公告)号：US20050109749A1
公开(公告)日：2005-05-26
申请号：US10718905
申请日：2003-11-21
申请人： Kunio Karino , Toshikazu Fujiyoshi , Kenzo Danjo , Hideo Ishii
发明人： Kunio Karino , Toshikazu Fujiyoshi , Kenzo Danjo , Hideo Ishii
IPC分类号： B23K9/09 , B23K9/10
CPC分类号： B23K9/092 , B23K9/093 , B23K9/1062
摘要： An input-side rectifier (4), a smoothing capacitor (6), an inverter (8), a transformer (10) and an output-side rectifier (12) operate together to convert an AC voltage supplied from an AC power supply to a DC voltage. The DC voltage is coupled through a DC-to-AC converter (16) to a workpiece (18) and a torch (20). An auxiliary voltage supply (28) supplies the workpiece (18) and the torch (20) with a negative voltage for a short time following the transition of the AC voltage supplied to the workpiece (18) and the torch (20) from positive to negative. The negative voltage has a negative peak value larger than the negative peak value of the AC voltage supplied to the workpiece (18) and the torch (20), and rapidly changes from the negative peak value. The auxiliary voltage supply (28) produces a DC voltage having a negative peak value larger than the negative peak value of the AC voltage supplied to the workpiece (18) and the torch (20), by means of a transformer (30), a rectifier (32) and a smoothing capacitor (36). The smoothing capacitor (36) is coupled to the workpiece (18) and the torch (20) through a transistor (38) and a current-limiting resistor (40). A differentiating circuit (46) is coupled in parallel with the current-limiting resistor (40), and includes a resistor (48) having a smaller resistance value than the current-limiting resistor (40).
摘要翻译：输入侧整流器（4），平滑电容器（6），逆变器（8），变压器（10）和输出侧整流器（12）一起工作，将从AC电源供给的AC电压转换为直流电压。 DC电压通过DC-AC转换器（16）耦合到工件（18）和焊炬（20）。辅助电源（28）在提供给工件（18）和割炬（20）的交流电压从正到负极转换到短时间之后，向工件（18）和割炬（20）提供负电压负。负电压具有大于提供给工件（18）和割炬（20）的AC电压的负峰值的负峰值，并且从负峰值迅速变化。辅助电源（28）通过变压器（30）产生具有大于提供给工件（18）和割炬（20）的交流电压的负峰值的负峰值的直流电压，整流器（32）和平滑电容器（36）。平滑电容器（36）通过晶体管（38）和限流电阻（40）耦合到工件（18）和割炬（20）。微分电路（46）与限流电阻（40）并联耦合，并且包括具有比限流电阻（40）更小的电阻值的电阻器（48）。

2. 发明授权

US6152699A Cooling apparatus for electrical equipment 失效
标题翻译：电气设备冷却装置
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。

3. 发明授权

US5771163A AC-DC converter apparatus 失效
标题翻译： AC-DC转换器装置
公开(公告)号：US5771163A
公开(公告)日：1998-06-23
申请号：US752302
申请日：1996-11-19
申请人： Haruo Moriguchi , Kenzo Danjo , Shigeru Okamoto , Takashi Hashimoto , Kunio Karino
发明人： Haruo Moriguchi , Kenzo Danjo , Shigeru Okamoto , Takashi Hashimoto , Kunio Karino
IPC分类号： H02M3/28 , H02M3/335 , H02M7/00 , H02M3/24
CPC分类号： H02M3/285 , H02M3/33569 , H02M2001/0074
摘要： A DC power supply apparatus includes a rectifier circuit for rectifying an input AC voltage to develop a rectified voltage between two output terminals thereof. First and second smoothing capacitors are connected in series between the output terminals of the rectifier circuit. First and second voltages developed across the first and second capacitors are applied to first and second inverters which convert the applied voltages to high-frequency voltages, which, in turn, are applied to a transformer. The transformer develops a transformed high-frequency voltage which is converted to a DC voltage by a converter. A voltage detector detects the first and second voltages, and the detected first and second voltages are compared in a microprocessor. An inverter control circuit controls the first and second inverters in accordance with the result of comparison, in a sense to make the voltages across the first and second smoothing capacitors equal.
摘要翻译：直流电源装置包括整流电路，用于整流输入AC电压，以在其两个输出端之间产生整流电压。第一和第二平滑电容器串联连接在整流电路的输出端子之间。跨越第一和第二电容器产生的第一和第二电压被施加到第一和第二逆变器，其将所施加的电压转换成高频电压，其又被施加到变压器。变压器开发出转换后的高频电压，通过转换器转换为直流电压。电压检测器检测第一和第二电压，并且在微处理器中比较所检测到的第一和第二电压。在使得第一和第二平滑电容器两端的电压相等的意义上，逆变器控制电路根据比较结果来控制第一和第二逆变器。

4. 发明授权

US5760372A Arc welder 失效
标题翻译：弧焊机
公开(公告)号：US5760372A
公开(公告)日：1998-06-02
申请号：US669993
申请日：1996-06-21
申请人： Kunio Karino , Haruo Moriguchi , Shigeru Okamoto , Kenzo Danjo , Atushi Kinoshita , Toshikazu Fujiyoshi
发明人： Kunio Karino , Haruo Moriguchi , Shigeru Okamoto , Kenzo Danjo , Atushi Kinoshita , Toshikazu Fujiyoshi
IPC分类号： B23K9/067 , B23K9/073 , B23K9/095 , B23K9/06
CPC分类号： B23K9/0956
摘要： An arc welder includes an inverter for converting a DC voltage to a RF voltage which, then, is rectified by a rectifier. The output of the rectifier is smoothed by a DC reactor. A RF generator provides RF current to flow between a workpiece and a main electrode of the welder forming a welder load, which initiates arcing between the workpiece and the main electrode. Initiation of arcing causes output current from the DC reactor to be supplied to the welder load, so that steady-state arcing is established. The DC reactor has a relatively small inductance which permit the output current from the DC reactor to reach a value required for establishing the steady-state arcing within a time period during which the RF generator provides RF current. The RF voltage from the inverter has a relatively high frequency so that the output current from the DC reactor can sustain the steady-state arcing.
摘要翻译：电弧焊机包括用于将DC电压转换成RF电压的逆变器，然后由整流器整流。整流器的输出由直流电抗器平滑。 RF发生器提供RF电流以在焊接工件的工件和主电极之间流动，形成焊接负载，其启动工件和主电极之间的电弧。引起电弧会使直流电抗器的输出电流提供给焊机负载，从而建立稳态电弧。 DC电抗器具有相对小的电感，其允许来自DC电抗器的输出电流达到在RF发生器提供RF电流的时间段内建立稳态电弧所需的值。来自逆变器的RF电压具有相对高的频率，使得来自DC电抗器的输出电流可以维持稳态电弧。

5. 发明授权

US5457300A Consumable electrode DC arc welder 失效
标题翻译：消弧电极直流电弧焊机
公开(公告)号：US5457300A
公开(公告)日：1995-10-10
申请号：US285002
申请日：1994-08-02
申请人： Kunio Karino , Haruo Moriguchi , Toshikazu Fujiyoshi , Kenzo Danjo , Atsushi Kinoshita
发明人： Kunio Karino , Haruo Moriguchi , Toshikazu Fujiyoshi , Kenzo Danjo , Atsushi Kinoshita
IPC分类号： B23K9/073 , B23K9/095 , H02M7/537 , H02M9/00
CPC分类号： B23K9/0956
摘要： An inverter controlled DC arc welder of consumable electrode type includes an input rectifier for rectifying AC input power, an inverter for converting the rectifier output to high frequency AC power, an output transformer for stepping down the inverter output voltage, and an output rectifier for rectifying the transformer output voltage to provide a DC output voltage to be applied to a welder load. The welder further includes means for detecting current flowing through the welder load to produce a detection signal, a differentiator circuit for differentiating the detection signal, and correction means for correcting a predetermined reference voltage in accordance with the differentiator output voltage. Feedback control means controls the inverter in accordance with the difference between the transformer output and the corrected reference voltage.
摘要翻译：一种易损电极类型的逆变器控制直流电弧焊机，包括用于整流交流输入电源的输入整流器，用于将整流器输出转换为高频交流电的逆变器，用于降低逆变器输出电压的输出变压器，以及用于整流的输出整流器变压器输出电压提供要施加到焊机负载的直流输出电压。焊机还包括用于检测流过焊机负载的电流以产生检测信号的装置，用于区分检测信号的微分电路和用于根据微分器输出电压校正预定参考电压的校正装置。反馈控制装置根据变压器输出与校正参考电压之间的差异来控制变频器。

6. 发明授权

US5272313A Arc welder 失效
标题翻译：弧焊机
公开(公告)号：US5272313A
公开(公告)日：1993-12-21
申请号：US962923
申请日：1992-10-19
申请人： Kunio Karino , Haruo Moriguchi , Toshikazu Fujiyoshi , Tetsurou Ikeda , Kenzo Danjo , Masahiro Aoyama
发明人： Kunio Karino , Haruo Moriguchi , Toshikazu Fujiyoshi , Tetsurou Ikeda , Kenzo Danjo , Masahiro Aoyama
IPC分类号： B23K9/073 , B23K9/10 , H02H11/00
CPC分类号： B23K9/1056 , H02H11/007
摘要： An arc welder which can be used with either a high voltage a.c. power supply of a certain voltage or a low voltage a.c. power supply of about a half of said voltage, such as 400 or 200 volts, for example, and which is provided with a circuit configuration in which an input a.c. voltage is rectified by a rectifier and smoothed by a pair of capacitors and the resultant d c. power is converted by an invertor into a high frequency a.c. power which is reduced in voltage by an output transformer and then rectified again, and arranged to discriminate the input a.c. voltage and switchingly connect these capacitors in series or parallel between both ends of the input rectifier, thereby automatically conforming the circuit to both high and low supply voltages.
摘要翻译：一台电弧焊机，可以用于高压直流电。电源一定电压或低电压a.c. 电源约为所述电压的一半，例如400或200伏，并且具有电路配置，其中输入交流电电压由整流器整流并且被一对电容器平滑，并且得到d c。电力由逆变器转换成高频率交流电。功率由输出变压器降低电压，然后再次整流，并且被布置为区分输入交流电。电压并将这些电容器以串联或并联的方式连接在输入整流器的两端之间，从而将电路自动地符合高电源电压和低电源电压。

7. 发明授权

US5306894A Consumable electrode type D.C. arc welder 失效
标题翻译：消耗电极型D.C.电弧焊机
公开(公告)号：US5306894A
公开(公告)日：1994-04-26
申请号：US25775
申请日：1993-03-03
申请人： Haruo Moriguchi , Tetsurou Ikeda , Kenzo Danjo , Toshikazu Fujiyoshi , Masahiro Aoyama , Kunio Karino
发明人： Haruo Moriguchi , Tetsurou Ikeda , Kenzo Danjo , Toshikazu Fujiyoshi , Masahiro Aoyama , Kunio Karino
IPC分类号： B23K9/073 , B23K9/10 , G05F1/08 , H02M9/00
CPC分类号： B23K9/1056 , G05F1/08
摘要： An invertor controlled D.C. arc welder of consumable electrode type which is arranged to rectify an a.c. power from a commercial power supply, convert it into a high frequency a.c. power by an invertor, rectify it again to obtain a d.c. power output for welding and stabilize the output voltage by feedback control of the invertor based upon the output voltage and provided with means for discriminating shorting and arcing periods of its welding load from the output voltage and additionally controlling the invertor based upon a resultant discrimination signal to raise the output voltage during the early time of the arcing period, thereby preventing defective welding due to insufficient output current. This invention is especially, effective for supplementing such insufficient output current as an aftereffect of insufficient output power during the shortening period in such welder which is provided with means for reducing the output voltage during the shortening period to prevent generation of undesirable spattering.
摘要翻译：一种易损电极类型的逆变器控制直流电弧焊机，其设置为对一个直流电源进行整流。从商用电源供电，将其转换成高频率。权力由逆变器，再次纠正获得一个d.c. 用于焊接的功率输出并且通过基于输出电压的逆变器的反馈控制来稳定输出电压，并且具有用于区分其焊接负载的短路和电弧周期与输出电压的装置，并且基于所得到的鉴别信号来控制逆变器在电弧期的早期阶段提高输出电压，防止由于输出电流不足导致的焊接不良。本发明特别有效地补充这种不足的输出电流，作为在这种焊接机的缩短期间输出功率不足的后果，其具有用于在缩短期间减小输出电压的装置，以防止产生不期望的飞溅。

8. 发明授权

US6054674A DC power supply apparatus for arc-utilizing apparatuses 有权
标题翻译：用于电弧利用装置的直流电源装置
公开(公告)号：US6054674A
公开(公告)日：2000-04-25
申请号：US231892
申请日：1999-01-14
申请人： Haruo Moriguchi , Tetsuro Ikeda , Toshikazu Fujiyoshi , Kenzo Danjo , Kunio Karino , Hideo Ishii
发明人： Haruo Moriguchi , Tetsuro Ikeda , Toshikazu Fujiyoshi , Kenzo Danjo , Kunio Karino , Hideo Ishii
IPC分类号： H05B7/18 , B23K9/073 , B23K9/10 , H02M3/28 , H02M9/00 , H02M9/04
CPC分类号： B23K9/1043
摘要： An AC voltage applied among power input supply terminals is rectified by a rectifier, and the rectified voltage is adapted to be reduced in a voltage-reducing converter with a switch connected in parallel with it. A switching circuit connect smoothing capacitors in series or parallel to the voltage-reducing converter. Inverters are connected in parallel with the respective smoothing capacitors. The output voltages of the inverters are voltage-transformed by transformers. The transformed voltages from the transformers are converted to DC voltages by converters. A control unit renders the voltage-reducing converter operative and causes the switching circuit to connect the smoothing capacitors in series when a third AC voltage is applied among the power supply input terminals. When a second AC voltage lower than the third AC voltage is applied among the power supply input terminals, the control unit causes the switch connected in parallel with the voltage-reducing converter to be closed and causes the switching circuit to connect the smoothing capacitors in series. If a first AC voltage about one-half as high as the second AC voltage is applied, the control unit causes the switch to be closed and causes the switching circuit to connect the smoothing capacitors in parallel.
摘要翻译：电源输入电源端子之间施加的交流电压由整流器整流，并且整流后的电压适于在降压转换器中减少，开关与其并联连接。开关电路将平滑电容器与降压转换器串联或并联连接。逆变器与各个平滑电容器并联连接。逆变器的输出电压由变压器进行电压转换。变压器的变换电压通过转换器转换为直流电压。当在电源输入端子之间施加第三交流电压时，控制单元使电压降低转换器工作并使开关电路串联连接平滑电容器。当在电源输入端子之间施加低于第三交流电压的第二交流电压时，控制单元使与降压转换器并联的开关闭合，并使开关电路串联连接平滑电容器。如果施加大约为第二交流电压的一半的第一交流电压，则控制单元使开关闭合，并使开关电路并联连接平滑电容器。

9. 发明授权

US5630952A Plasma-arc power supply apparatus 失效
标题翻译：等离子弧电源装置
公开(公告)号：US5630952A
公开(公告)日：1997-05-20
申请号：US579254
申请日：1995-12-27
申请人： Kunio Karino , Haruo Moriguchi , Toshikazu Fujiyoshi , Atsushi Kinoshita , Takashi Hashimoto
发明人： Kunio Karino , Haruo Moriguchi , Toshikazu Fujiyoshi , Atsushi Kinoshita , Takashi Hashimoto
IPC分类号： B23K10/00 , H01F38/40 , H02M9/00 , H05H1/36
CPC分类号： H05H1/36
摘要： A plasma-arc power supply apparatus includes a main electrode terminal, a nozzle electrode terminal and a workpiece terminal which are respectively coupled to a main electrode, a nozzle electrode and a workpiece of a plasma-arc apparatus. A DC power supply has its first output terminal coupled to the main electrode terminal, and a second output terminal. A pilot arc path is coupled between the second output terminal and the nozzle electrode terminal. A switch is connected in the pilot arc path. A plasma-arc path is coupled between the second output terminal and the workpiece terminal. A current detector has its first input coupled to the plasma-arc path, has its second input coupled to the pilot arc path, and produce a detection signal corresponding to the values of pilot arc and plasma-arc currents in the pilot arc and and plasma-arc paths, respectively. When the pilot arc current is flowing, a control unit closes the switch and controls current from the DC power supply in accordance with the difference between detection signal and a predetermined pilot arc reference signal, and when the plasma-arc current is flowing, the control unit opens the switch and controls current from the DC power supply in accordance with the difference between the detection signal and a predetermined plasma-arc signal.
摘要翻译：等离子弧电源装置包括主电极端子，喷嘴电极端子和工件端子，它们分别连接到等离子体电弧装置的主电极，喷嘴电极和工件。直流电源具有与主电极端子耦合的第一输出端子和第二输出端子。引弧步骤连接在第二输出端和喷嘴电极端之间。开关连接在导电弧路径中。等离子体电弧路径耦合在第二输出端子和工件端子之间。电流检测器具有耦合到等离子体电弧路径的第一输入端，其第二输入端耦合到先导电弧路径，并且产生对应于导向电弧中的导电电弧和等离子体电弧电流值的检测信号和等离子体 -arc路径。当导通电弧电流流动时，控制单元关闭开关并根据检测信号和预定的导频电弧参考信号之间的差异控制来自直流电源的电流，并且当等离子体电弧电流流动时，控制单元打开开关并根据检测信号和预定的等离子体电弧信号之间的差异控制来自直流电源的电流。

10. 发明授权

US07075032B2 Power supply apparatus 有权
标题翻译：电源设备
公开(公告)号：US07075032B2
公开(公告)日：2006-07-11
申请号：US10718905
申请日：2003-11-21
申请人： Kunio Karino , Toshikazu Fujiyoshi , Kenzo Danjo , Hideo Ishii
发明人： Kunio Karino , Toshikazu Fujiyoshi , Kenzo Danjo , Hideo Ishii
IPC分类号： B23K9/10
CPC分类号： B23K9/092 , B23K9/093 , B23K9/1062
摘要： An input-side rectifier (4), a smoothing capacitor (6), an inverter (8), a transformer (10) and an output-side rectifier (12) operate together to convert an AC voltage supplied from an AC power supply to a DC voltage. The DC voltage is coupled through a DC-to-AC converter (16) to a workpiece (18) and a torch (20). An auxiliary voltage supply (28) supplies the workpiece (18) and the torch (20) with a negative voltage for a short time following the transition of the AC voltage supplied to the workpiece (18) and the torch (20) from positive to negative. The negative voltage has a negative peak value larger than the negative peak value of the AC voltage supplied to the workpiece (18) and the torch (20), and rapidly changes from the negative peak value. The auxiliary voltage supply (28) produces a DC voltage having a negative peak value larger than the negative peak value of the AC voltage supplied to the workpiece (18) and the torch (20), by means of a transformer (30), a rectifier (32) and a smoothing capacitor (36). The smoothing capacitor (36) is coupled to the workpiece (18) and the torch (20) through a transistor (38) and a current-limiting resistor (40). A differentiating circuit (46) is coupled in parallel with the current-limiting resistor (40), and includes a resistor (48) having a smaller resistance value than the current-limiting resistor (40).
摘要翻译：输入侧整流器（4），平滑电容器（6），逆变器（8），变压器（10）和输出侧整流器（12）一起工作，将从AC电源供给的AC电压转换为直流电压。 DC电压通过DC-AC转换器（16）耦合到工件（18）和焊炬（20）。辅助电源（28）在提供给工件（18）和割炬（20）的交流电压从正到负极转换到短时间之后，向工件（18）和割炬（20）提供负电压负。负电压具有大于提供给工件（18）和割炬（20）的AC电压的负峰值的负峰值，并且从负峰值迅速变化。辅助电源（28）通过变压器（30）产生具有大于提供给工件（18）和割炬（20）的交流电压的负峰值的负峰值的直流电压，整流器（32）和平滑电容器（36）。平滑电容器（36）通过晶体管（38）和限流电阻（40）耦合到工件（18）和割炬（20）。微分电路（46）与限流电阻（40）并联耦合，并且包括具有比限流电阻（40）更小的电阻值的电阻器（48）。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式