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公开(公告)号：US08664566B2
公开(公告)日：2014-03-04
申请号：US11422624
申请日：2006-06-07
申请人： Hideo Ishii , Tetsuro Ikeda , Kenzo Danjo , Atsushi Kinoshita
发明人： Hideo Ishii , Tetsuro Ikeda , Kenzo Danjo , Atsushi Kinoshita
IPC分类号： B23K9/10
CPC分类号： B23K9/0673 , B23K9/167
摘要： An arc welding apparatus includes a main power supply circuit for outputting an arc current, a control circuit for controlling the main power supply circuit, and a high-frequency voltage generating circuit for generating a high-frequency voltage. When an operation switch is turned on for a first time since the apparatus is powered on, the control circuit activates the main power supply circuit to output a high voltage, and the high-frequency voltage generating circuit to generate a high-frequency voltage. With the high voltage superimposed on the high-frequency voltage, the control circuit passes a welding arc current through a torch and a base material. The switch is then turned off, and the control circuit passes a pilot arc current through the torch and the base material. The switch is turned on again, and the control circuit activates the main power supply circuit to output a high voltage, thereby allowing smooth arc transition.
摘要翻译： 一种电弧焊接装置，包括用于输出电弧电流的主电源电路，用于控制主电源电路的控制电路和用于产生高频电压的高频电压发生电路。 当操作开关从设备通电开始第一次时，控制电路激活主电源电路以输出高电压，高频电压产生电路产生高频电压。 由于高电压叠加在高频电压上，控制电路通过焊炬和基材使焊接电弧电流通过。 然后关闭开关，并且控制电路通过导电电弧电流通过焊炬和基材。 开关再次接通，控制电路激活主电源电路输出高电压，从而实现平滑的电弧转换。
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公开(公告)号：US20070284349A1
公开(公告)日：2007-12-13
申请号：US11422624
申请日：2006-06-07
申请人： Hideo Ishii , Tetsuro Ikeda , Kenzo Danjo , Atsushi Kinoshita
发明人： Hideo Ishii , Tetsuro Ikeda , Kenzo Danjo , Atsushi Kinoshita
IPC分类号： B23K9/06
CPC分类号： B23K9/0673 , B23K9/167
摘要： An arc welding apparatus includes a main power supply circuit for outputting an arc current, a control circuit for controlling the main power supply circuit, and a high-frequency voltage generating circuit for generating a high-frequency voltage. When an operation switch is turned on for a first time since the apparatus is powered on, the control circuit activates the main power supply circuit to output a high voltage, and the high-frequency voltage generating circuit to generate a high-frequency voltage. With the high voltage superimposed on the high-frequency voltage, the control circuit passes a welding arc current through a torch and a base material. The switch is then turned off, and the control circuit passes a pilot arc current through the torch and the base material. The switch is turned on again, and the control circuit activates the main power supply circuit to output a high voltage, thereby allowing smooth arc transition.
摘要翻译： 一种电弧焊接装置，包括用于输出电弧电流的主电源电路，用于控制主电源电路的控制电路和用于产生高频电压的高频电压发生电路。 当操作开关从设备通电开始第一次时，控制电路激活主电源电路以输出高电压，高频电压产生电路产生高频电压。 由于高电压叠加在高频电压上，控制电路通过焊炬和基材使焊接电弧电流通过。 然后关闭开关，并且控制电路通过导电电弧电流通过焊炬和基材。 开关再次接通，控制电路激活主电源电路输出高电压，从而实现平滑的电弧转换。
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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
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。
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公开(公告)号：US06278080B1
公开(公告)日：2001-08-21
申请号：US09440053
申请日：1999-11-18
申请人： Haruo Moriguchi , Tetsuro Ikeda , Atsushi Kinoshita , Hideo Ishii
发明人： Haruo Moriguchi , Tetsuro Ikeda , Atsushi Kinoshita , Hideo Ishii
IPC分类号： B23K910
CPC分类号： H05K7/20209 , B23K9/1056 , H02M1/36 , H02M3/3376 , H02M2001/008
摘要： A power supply apparatus includes a power supply unit disposed within a casing. The power supply unit includes power semiconductor devices. A fan is provided in the casing for cooling the power semiconductor devices. The power supply unit is operated in a plurality of contiguous cycles each including a running and pausing modes of operation. Each cycle lasting a relatively short time period. The power supply unit operates in the running mode and the pausing mode, respectively in response to the closing and opening of a start switch. In association with the closing and opening of the start switch, a switch for the cooling fan causes the fan to rotate and stop, respectively, which results in minimizing the difference between the highest and lowest temperatures of the power semiconductor devices so that the lifetime of the power semiconductor devices can be prolonged.
摘要翻译： 电源装置包括设置在壳体内的电源单元。 电源单元包括功率半导体器件。 壳体中设置有用于冷却功率半导体器件的风扇。 电源单元以多个连续周期操作，每个循环包括运行和暂停操作模式。 每个周期的持续时间相对较短。 电源单元响应于启动开关的闭合和打开而分别在运行模式和暂停模式下操作。 与启动开关的关闭和打开相关联，用于冷却风扇的开关分别使风扇旋转和停止，这导致功率半导体器件的最高和最低温度之间的差异最小化，使得寿命 可以延长功率半导体器件。
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公开(公告)号：US5457300A
公开(公告)日：1995-10-10
申请号：US285002
申请日：1994-08-02
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。
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公开(公告)号：US5942139A
公开(公告)日：1999-08-24
申请号：US009613
申请日：1998-01-20
CPC分类号： B23K9/1043 , B23K9/0956
摘要： DC power from a smoothing capacitor is converted into high frequency power by an inverter, and then lowered by an output transformer. The lowered high frequency power is converted into DC power by an output rectifier and a DC reactor, and then supplied to a load. The load is short-circuited and then opened to initiate arcing. The short-circuiting and the arcing alternate. An auxiliary rectifier provides a load-voltage representative signal, and a current detector detects a load current. A load-current representative signal is differentiated by a differentiation circuit. The signals from the auxiliary rectifier, the current detector and the differentiation circuit, and a reference signal are applied to an operational amplifier. A control circuit controls the inverter such that the output of the operational amplifier can be zero. An integration circuit receives at least the load-voltage representative signal to detect a period of a cycle consisting of the arcing and the short-circuiting and provide an operation-cycle-period representative signal to the operational amplifier.
摘要翻译： 来自平滑电容器的直流电力由逆变器转换为高频功率，然后由输出变压器降低。 降低的高频功率由输出整流器和直流电抗器转换为直流电力，然后提供给负载。 负载短路，然后打开以启动电弧。 短路和电弧交替。 辅助整流器提供负载电压代表信号，电流检测器检测负载电流。 负载电流代表信号由微分电路区分。 来自辅助整流器，电流检测器和微分电路的信号以及参考信号被施加到运算放大器。 控制电路控制逆变器，使得运算放大器的输出可以为零。 积分电路至少接收负载电压代表信号，以检测由电弧和短路组成的周期的周期，并向运算放大器提供操作周期代表信号。
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7.发明授权Arc welder with timed control of arcing recovery and means for reducing weight, size, and power loss in the welder 失效具有电弧恢复定时控制的弧焊机，以及减少焊机重量，尺寸和功率损耗的手段
公开(公告)号：US5343017A
公开(公告)日：1994-08-30
申请号：US120049
申请日：1993-09-13
CPC分类号： B23K9/0738 , B23K9/0731 , Y02P70/181
摘要： An arc welder provided with a low frequency square waveform a.c. power supply as a main power supply for welding in order to improve its power of recovering an arc which may go out at the time of polarity transition of a welding load and an auxiliary d.c. power supply for super-posing its output upon the input of the main power supply to further improve the recovering power, in which a switching element is inserted in a supply path of the output of the auxiliary d.c. power supply and the switching element is put in conduction by a suitable control device only for a necessary shortest arc recovery time in order to reduce a power loss due to continuous supply of the auxiliary d.c. output. The welder may include a diode which is put in conduction in response to an excessive transient voltage induced at the input of an invertor of the main power supply at the time of polarity transition of the welding load and, in order to prevent excessive charge of the capacitor in this case, the conduction time of the switching element may be extended to discharge an excess charge through the switching element to the invertor when a voltage across the capacitor exceeds a predetermined value.
摘要翻译： 弧焊机提供低频方波形a.c。 电源作为焊接的主要电源，以提高其恢复在焊接负载和辅助直流极性转变时可能熄灭的电弧的功率。 用于在主电源的输入端超高输出的电源，以进一步提高恢复功率，其中开关元件插入辅助直流输出的供电路径中。 电源和开关元件由合适的控制装置导通，只需要最短的电弧恢复时间，以减少由于辅助直流电的连续供电导致的功率损耗。 输出。 焊机可以包括二极管，其响应于在焊接负载的极性转变时在主电源的逆变器的输入处感应到的过大的瞬态电压而被导通，并且为了防止 电容器在这种情况下，当电容器两端的电压超过预定值时，开关元件的导通时间可以延长以通过开关元件将过量的电荷放电到逆变器。
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公开(公告)号：US5877952A
公开(公告)日：1999-03-02
申请号：US954816
申请日：1997-10-21
CPC分类号： B23K9/0678
摘要： Power supply apparatus includes a converter which converts a commercial AC voltage into a DC voltage. An inverter converts the DC voltage into a high frequency voltage. The high frequency voltage is voltage-transformed by a transformer, and then rectified and smoothed by a rectifier and a smoothing reactor into a DC voltage. This DC voltage is applied between a workpiece and a torch. A high frequency voltage generator generates a high frequency voltage and applies it to a primary winding of a coupling transformer. A boosted high frequency voltage is induced in a first secondary winding and applied between the workpiece and the torch, so that arcing is initiated. The coupling transformer includes a second secondary winding in which another high frequency voltage is induced. The high frequency voltage induced in the second secondary winding is converted into a DC voltage by a diode and a smoothing capacitor for application between the workpiece and the torch, so that the arcing is sustained.
摘要翻译： 电源装置包括将商用AC电压转换成DC电压的转换器。 逆变器将直流电压转换成高频电压。 高频电压由变压器进行电压转换，然后由整流器和平滑电抗器整流并平滑成直流电压。 该直流电压施加在工件和割炬之间。 高频电压发生器产生高频电压并将其施加到耦合变压器的初级绕组。 在第一次级绕组中感应出升高的高频电压，并施加在工件和割炬之间，从而启动电弧。 耦合变压器包括其中引入另一高频电压的第二次级绕组。 在第二次级绕组中感应的高频电压通过二极管和平滑电容器转换成直流电压，用于工件和焊炬之间的应用，从而保持电弧。
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公开(公告)号：US5751568A
公开(公告)日：1998-05-12
申请号：US758691
申请日：1996-12-03
CPC分类号： B23K9/1056 , H02M7/48
摘要： A power supply apparatus for arc-utilizing equipment includes a first converter for converting a received AC voltage to a DC voltage. An inverter converts the DC voltage to a high-frequency voltage, which is applied to a voltage-transformer with primary and second windings. A voltage-transformed high-frequency voltage induced in the secondary winding is converted to a DC voltage in a second converter, which is developed between two output terminals. The respective ones of the two output terminals are connected to a torch electrode of the arc-utilizing equipment and a workpiece. A bypass capacitor and a high-frequency voltage generator circuit are serially connected between the two output terminals. A control circuit controls the high-frequency voltage generator circuit and the inverter circuit. The bypass capacitor is connected directly between one of the two output terminals and the high-frequency voltage generator circuit.
摘要翻译： 用于电弧利用设备的电源装置包括用于将接收的AC电压转换为DC电压的第一转换器。 逆变器将直流电压转换为施加到具有初级和第二绕组的电压互感器的高频电压。 在次级绕组中感应的电压变换的高频电压被转换成在两个输出端之间产生的第二转换器中的直流电压。 两个输出端子中的相应的端子连接到电弧利用设备的炬电极和工件。 旁路电容器和高频电压发生器电路串联连接在两个输出端子之间。 控制电路控制高频电压发生器电路和逆变器电路。 旁路电容器直接连接在两个输出端子之一和高频电压发生器电路之间。
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公开(公告)号：US06194681B1
公开(公告)日：2001-02-27
申请号：US09498077
申请日：2000-02-04
IPC分类号： B23K1000
CPC分类号： B23K9/1043 , B23K9/091 , B23K9/1006
摘要： A DC voltage resulting from rectifying and smoothing a commercial AC voltage is converted into a high-frequency voltage in an inverter which is operated in response to the closure of a start switch. A transformer transforms the high-frequency voltage, and the voltage-transformed high-frequency voltage is converted to a DC voltage by a rectifier and reactor for application between a torch and a workpiece with a gap disposed therebetween. In response to the closure of the start switch, an igniter operated from the voltage-transformed high-frequency voltage is enabled by an igniter driver to thereby apply a high-frequency voltage between the torch and the workpiece to generate an arc therebetween. A current detector detects current attributable to the arcing. A timer starts operating upon closure of the start switch and causes a disabling commander to disable the inverter when no current is detected by the current detector during a time period longer than a period required for an arc to be generated in the gap. This interrupts the supply of the operating voltage for the igniter, and the igniter stops operating.
摘要翻译： 在商业交流电压的整流和平滑中产生的直流电压被转换成响应于启动开关闭合而操作的逆变器中的高频电压。 变压器转换高频电压，并且通过整流器和电抗器将电压变换的高频电压转换为直流电压，以在喷枪和工件之间施加间隙，间隙设置在其间。 响应于启动开关的闭合，由电压变换的高频电压操作的点火器由点火器驱动器实现，从而在割炬和工件之间施加高频电压，以在它们之间产生电弧。 电流检测器检测归因于电弧的电流。 定时器在起动开关闭合时开始操作，并且当电流检测器没有检测到电流在比在间隙中产生电弧所需的时间段更长的时间段内使得禁用指令器禁用逆变器。 这将中断点火器的工作电压供应，点火器停止工作。
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