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1. 发明授权

US4521672A Electronic welding apparatus 失效
标题翻译：电子焊接设备
公开(公告)号：US4521672A
公开(公告)日：1985-06-04
申请号：US436891
申请日：1982-10-26
申请人： Klaus Fronius
发明人： Klaus Fronius
IPC分类号： B23K9/09 , B23K9/10
CPC分类号： B23K9/091
摘要： An electronic welding apparatus which, for controlling at least one welding parameter, such as welding voltage or welding current, comprises a switching mode power supply as a control element and preferably being regulated on the primary. The actual values of voltage and current are taken from the output of the switching mode power supply and fed to an analog control circuit. The set values of voltage and current are fed via an entry keyboard to a microprocessor where they are stored in a memory and passed on in analogous form to the analog control circuit which carries out a comparison of set value and actual value and, in dependence thereon, produces an error signal that is fed to a pulse width modultor which is connected to the driver stages of the power supply's switching stages which are designed as a boost regulator or a buck regulator, and thus a pulse width modulation of the current pulses of the switching stages is effected in dependence on the difference between actual and nominal values. Also fed to the microprocessor are the actual values of current and voltage which, together with other welding parameters fed in via the entry keyboard, such as rate of wire feed, wire thickness, type and pressure of the protective gas, watercooling etc., serve for monitoring the welding procedure.
摘要翻译：用于控制焊接电压或焊接电流等至少一个焊接参数的电子焊接设备包括作为控制元件的开关模式电源，并且优选地在主电源上调节。电压和电流的实际值取自开关模式电源的输出，并馈送到模拟控制电路。电压和电流的设定值通过输入键盘馈送到微处理器，并将它们存储在存储器中，并以类似的形式传递到模拟控制电路，该模拟控制电路执行设定值和实际值的比较，并依赖于产生馈送到脉冲宽度调制器的误差信号，该脉冲宽度调制器连接到被设计为升压调节器或降压调节器的电源的开关级的驱动级，因此，脉冲宽度调制根据实际值和标称值之间的差异来实现开关级。馈送到微处理器的实际值是电流和电压的实际值，其连同通过入口键盘馈入的其它焊接参数，例如送丝速度，线材厚度，保护气体的类型和压力，水冷却等等用于监测焊接程序。

2. 发明授权

US4521671A Electronic welding apparatus 失效
标题翻译：电子焊接设备
公开(公告)号：US4521671A
公开(公告)日：1985-06-04
申请号：US542617
申请日：1983-10-17
申请人： Klaus Fronius
发明人： Klaus Fronius
IPC分类号： B23K9/09 , B23K9/10
CPC分类号： B23K9/091
摘要： An electric welding apparatus which, for controlling at least one welding parameter, such as welding voltage or welding current, comprises a switching mode power supply (SMPS) as control element, the switching mode power supply preferably being regulated on the primary. The actual values of voltage and current are taken from the output of the switching mode power supply and fed to an analog control circuit. The set values of voltage and current are fed to a microprocessor via an entry keyboard, and in the microprocessor they are stored in a memory and passed on in analogous form to the analog control circuit which carries out a comparison of set value and actual value and, in dependence thereon, produces an error signal that is fed to a pulse width modulator of the switching mode power supply. The pulse width modulator is connected to the driver stages of the switching stages of the switching mode power supply, which switching stages are designed as boost regulator of buck regulator, and thus a pulse width modulation of the current pulses of the switching stages is effected in dependence on the difference between actual and nominal value. The converter section of the switching mode power supply preferably is designed as a modified single-ended buck regulator or as a push-pull full bridge, wherein it is operated at a fixed clock frequency of about 25 kHz. The secondary coil of the transformer of the switching mode power supply being either direct in connection with the output connection terminals of the switching mode power supply, or a secondary rectifier is connected between the secondary coil and the output connection terminals, whereby the secondary rectifier can be bridged by switch means.
摘要翻译：一种用于控制至少一个焊接参数（如焊接电压或焊接电流）的电焊设备包括作为控制元件的开关模式电源（SMPS），开关模式电源优选地在初级侧被调节。电压和电流的实际值取自开关模式电源的输出，并馈送到模拟控制电路。电压和电流的设定值通过入口键盘馈送到微处理器，而在微处理器中，它们被存储在存储器中，并以类似的形式传送到模拟控制电路，该模拟控制电路执行设定值和实际值的比较，依赖于此，产生馈送到开关模式电源的脉冲宽度调制器的误差信号。脉冲宽度调制器连接到开关模式电源的开关级的驱动级，这些开关级被设计为降压稳压器的升压调节器，因此开关级的电流脉冲的脉冲宽度调制是在依赖于实际和名义价值之间的差异。开关模式电源的转换器部分优选地被设计为修改的单端降压调节器或作为推挽式全桥，其中以约25kHz的固定时钟频率操作。开关模式电源的变压器的次级线圈与开关模式电源的输出连接端子直接连接，或者次级整流器连接在次级线圈和输出连接端子之间，从而次级整流器可以由交换机桥接。

3. 发明授权

US4450340A Arc welder power supply with fail-safe voltage reducing circuit 失效
标题翻译：电弧焊机电源具有故障安全降压电路
公开(公告)号：US4450340A
公开(公告)日：1984-05-22
申请号：US448866
申请日：1982-12-10
申请人： Don J. Corrigall , Marvin L. Schiedermayer
发明人： Don J. Corrigall , Marvin L. Schiedermayer
IPC分类号： B23K9/10
CPC分类号： B23K9/1031
摘要： A fail-safe voltage reducing circuit for an arc welder. The welding transformer has two primary windings connected in parallel across a power source. After an arc is struck, if the arc is then broken for a predetermined time period, the circuit automatically disconnects one of the primary windings from the power source, thereby reducing the voltage across the welder's output terminals to a safe standby voltage lower than the full open circuit voltage. If the voltage has not been reduced after a second predetermined time period, the fail-safe feature of the circuit automatically disconnects both primary windings from the power source, thereby completely removing all power from the welder.
摘要翻译：一种用于电弧焊机的故障安全降压电路。焊接变压器在电源上并联两个初级绕组。在电弧被击打之后，如果电弧在预定的时间段内被断开，则电路自动地将一个初级绕组与电源断开，从而将焊机的输出端子两端的电压降低到低于满电压的安全待机电压开路电压。如果在第二预定时间段之后电压没有减小，则电路的故障安全特征自动地将两个初级绕组与电源断开，从而完全消除来自焊机的所有电力。

4. 发明授权

US4322602A Square wave power supply for arc welding 失效
标题翻译：电弧焊方波电源
公开(公告)号：US4322602A
公开(公告)日：1982-03-30
申请号：US227910
申请日：1981-01-23
申请人： Franklin J. Grist
发明人： Franklin J. Grist
IPC分类号： B23K9/06 , B23K9/09
CPC分类号： B23K9/091
摘要： An alternating current constant potential power source suitable for use in a submerged arc welding process. An inductor (Z1) of large value is placed in the D.C. output of thyristor bridge (SCR1 to SCR4) fed from a transformer (T1). The four thyristors (SCR1 to SCR4) and the inductor (Z1) are controlled in such a manner as to provide essentially square wave currents. The square wave is adjustable in amplitude with very rapid zero crossing. The thyristor bridge (SCR1 to SCR4) is controlled in a firing sequence so as to prevent free wheeling of the square wave inductor (Z1) at polarity reversals of the voltage supply. The inductor (Z1) is capable of storing vast amounts of energy, and the thyristor firings are timed to deliver this energy into the arc. Two regulating sub-systems respectively responsive to arc voltage and arc current operate together to control the output. The regulator time response is designed to ignore short instantaneous perturbations and regulate around a long term output voltage with high gain. This voltage loop is active at all times. However, defeating the current feedback on arc starts permits the source to deliver high current on demand during cold starts.
摘要翻译：适用于埋弧焊工艺的交流恒压电源。将大值的电感（Z1）放置在从变压器（T1）馈送的晶闸管桥（SCR1至SCR4）的直流输出端。四个晶闸管（SCR1至SCR4）和电感器（Z1）的控制方式为提供基本上方波电流。方波的幅度可以非常快速的过零点。控制晶闸管桥（SCR1〜SCR4）的点火顺序，以防止方波电感（Z1）在电压极性反转时的自由转动。电感器（Z1）能够存储大量的能量，并且晶闸管启动被定时以将该能量传递到电弧中。分别响应于电弧电压和电弧电流的两个调节子系统一起操作以控制输出。调节器时间响应被设计为忽略短暂的瞬时扰动，并调节具有高增益的长期输出电压。该电压环始终处于活动状态。然而，击败电弧启动的当前反馈允许源在冷启动期间按需提供高电流。

5. 发明授权

US5911894A Enhanced contact area quick release MIG gun tip 失效
标题翻译：增强接触面积快速释放MIG枪尖
公开(公告)号：US5911894A
公开(公告)日：1999-06-15
申请号：US87661
申请日：1998-06-01
申请人： Ronald W. Colling
发明人： Ronald W. Colling
IPC分类号： B23K9/26 , B23K9/32 , B23K9/24
CPC分类号： B23K9/32 , B23K9/26
摘要： A quick release mig gun tip comprises a contact tip having an exterior frusto-conical surface and external threads, and a gas diffuser having an internal frusto-conical surface and internal threads. The threads are preferably stub acme threads. The contact tip is assembled to the gas diffuser by engaging their threads until the frusto-conical surfaces mate. Large currents can be conducted through the frusto-conical surfaces and the threads without causing excessive resistance heating. The contact tip threads are designed so that assembly and release of the contact tip requires only one turn relative to the gas diffuser.
摘要翻译：快速释放mig枪头包括具有外部截头圆锥形表面和外螺纹的接触尖端，以及具有内部截头圆锥形表面和内螺纹的气体扩散器。螺纹最好是短管螺纹。接触尖端通过接合其螺纹而组装到气体扩散器，直到截头圆锥形表面配合。大电流可以通过截头圆锥形表面和螺纹传导，而不会引起过大的电阻加热。接触尖端螺纹设计成使得接触尖端的组装和释放相对于气体扩散器仅需要一匝。

6. 发明授权

US5599470A Battery box for engine driven welder 失效
标题翻译：发动机驱动焊机电池盒
公开(公告)号：US5599470A
公开(公告)日：1997-02-04
申请号：US526494
申请日：1995-09-11
申请人： Benjamin G. Peotter , Harvey R. Johnson
发明人： Benjamin G. Peotter , Harvey R. Johnson
IPC分类号： B23K9/32 , B23K9/10
CPC分类号： B23K9/32
摘要： A battery box for an engine driven welding machine slides in an opening in the welding machine base between closed and open positions. When the battery box is in the closed position, a battery secured to a battery box is concealed inside the base. When the battery box is in the open position, the battery is exposed for servicing. Panels assembled to the base define an opening in the base. The panels cooperate with the base floor to form slots in which the battery box slides. The panels and base floor provide a cantilever support for the battery box when it is in the open position. A finger hole in the battery box is surrounded on one side by a small housing that keeps foreign material out of the machine base when the battery box is in the closed position.
摘要翻译：用于发动机驱动焊接机的电池盒在焊接机基座的开口中在封闭位置和打开位置之间滑动。当电池盒处于关闭位置时，固定到电池盒的电池被隐藏在基座内部。当电池盒处于打开位置时，电池暴露维修。组装到基座的面板在基座中形成一个开口。面板与基座配合形成电池盒滑动的槽。当电池盒处于打开位置时，面板和底座为电池盒提供悬臂支撑。电池盒中的指孔在一侧被一个小外壳包围，当电池盒处于关闭位置时，外壳将异物保持在机器底座外面。

7. 发明授权

US5221894A Weld current sensor 失效
标题翻译：焊接电流传感器
公开(公告)号：US5221894A
公开(公告)日：1993-06-22
申请号：US844209
申请日：1992-03-02
申请人： Warren E. Herwig
发明人： Warren E. Herwig
IPC分类号： G01R19/165
CPC分类号： G01R19/16509
摘要： A weld current switch includes a channel-shaped core, a shunt, and a magnetic reed switch. The magnetic reed switch and shunt are placed across the core poles. An electrical conductor carrying high current passes through the core. Upon deenergization of the electrical current, a residual magnetism remains in the core. The residual magnetism is normally high enough to prevent the magnetic reed switch from opening. However, the shunt directs sufficient magnetic flux from the switch such that the switch senses a much lower level of magnetic flux than if the shunt were not present. As a result, the switch opens, even with the high residual flux in the core. The increased reliability of the switch upon decreasing current at electrical conductor deenergization enables the weld current switch to use a higher sensitivity switch than was formerly possible. The higher sensitivity switch reduces the level of magnetic flux at which the reed switch will close on increasing current upon energization of the electrical conductor.
摘要翻译：焊接电流开关包括通道形磁芯，分流器和磁簧开关。磁簧开关和分流器放置在核心极上。携带高电流的电导体穿过芯体。在电流断电时，磁芯中残留有磁性。剩余磁通常高到足以防止磁簧开关断开。然而，分流器引导来自开关的足够的磁通量，使得开关感测到比不存在分流器时低得多的磁通量。结果，即使在芯中具有高剩余通量，开关也将打开。在电导体断电时降低电流时开关的可靠性提高使得焊接电流开关能够使用比以前更高的灵敏度开关。较高的灵敏度开关降低了磁通量的水平，在通电时，簧片开关将在增加电流时关闭。

8. 发明授权

US4038515A Asymmetrical A.C. welder 失效
标题翻译：不对称交流焊接机
公开(公告)号：US4038515A
公开(公告)日：1977-07-26
申请号：US575685
申请日：1975-05-08
申请人： Robet L. Risberg
发明人： Robet L. Risberg
IPC分类号： B23K9/073 , B23K9/06 , B23K9/10
CPC分类号： B23K9/1056
摘要： A constant potential single phase A.C. power welding source is connected to a thyristor network and an energy storing inductor to create a square wave welding current that is adjustable in height, and is further adjustable to allow either half-cycle to be wider than the other, the sum of two adjacent half-cycles always equaling 360.degree.. The welding current is forced to reverse rapidly by a substantial voltage to insure conduction when the welding load is an arc to an aluminum work piece, and the aluminum tends to rectify. The heights of the positive and negative half-cycles are simultaneously adjustable in response to manual control and feedback signals. In addition, the ratio of the heights of the positive and negative half-cycles can be other than 1:1 by selectively enabling a conduction path through a different number of turns on the inductor during the negative and positive half-cycles, such enabling being either continuous or on an adaptive feedback basis as a function of arc length as determined by arc voltage. The height difference is effective in a step fashion since the total ampere-turns must remain constant. The thyristor network may also be re-connected for full-wave rectification for D.C. welding.

9. 发明授权

US5760373A Enhanced contact area quick release mig gun tip 失效
标题翻译：增强接触面积快速释放mig枪尖
公开(公告)号：US5760373A
公开(公告)日：1998-06-02
申请号：US579123
申请日：1995-12-27
申请人： Ronald W. Colling
发明人： Ronald W. Colling
IPC分类号： B23K9/26 , B23K9/32 , B23K9/24
CPC分类号： B23K9/32 , B23K9/26
摘要： A quick release mig gun tip comprises a contact tip having an exterior frusto-conical surface and external threads, and a gas diffuser having an internal frusto-conical surface and internal threads. The threads are preferably stub acme threads. The contact tip is assembled to the gas diffuser by engaging their threads until the frusto-conical surfaces mate. Large currents can be conducted through the frusto-conical surfaces and the threads without causing excessive resistance heating. The contact tip threads are designed so that assembly and release of the contact tip requires only one turn relative to the gas diffuser.
摘要翻译：快速释放mig枪头包括具有外部截头圆锥形表面和外螺纹的接触尖端，以及具有内部截头圆锥形表面和内螺纹的气体扩散器。螺纹最好是短管螺纹。接触尖端通过接合其螺纹而组装到气体扩散器，直到截头圆锥形表面配合。大电流可以通过截头圆锥形表面和螺纹传导，而不会引起过大的电阻加热。接触尖端螺纹设计成使得接触尖端的组装和释放相对于气体扩散器仅需要一匝。

10. 发明授权

US4540871A Welding gun with multi-directional switch 失效
标题翻译：焊枪采用多向开关
公开(公告)号：US4540871A
公开(公告)日：1985-09-10
申请号：US502055
申请日：1983-06-07
申请人： Don J. Corrigall , Floyd D. Hansen , James R. Kujawa
发明人： Don J. Corrigall , Floyd D. Hansen , James R. Kujawa
IPC分类号： B23K9/29 , H01H1/24 , H01H9/06 , B23K9/00
CPC分类号： B23K9/291 , H01H9/06 , H01H1/242
摘要： A welding gun having a switch comprising two spaced apart coaxial conducting springs which act as switch contacts for completing a circuit to initiate a welding process. A coaxial flexible wall in the handle of the welding gun surrounds the two springs such that, when a welding machine operator depresses the flexible wall, the two springs make electrical contact to complete the circuit. When the flexible wall is released, the springs return to their original positions, thereby interrupting the electrical circuit.
摘要翻译：一种具有开关的焊枪，包括两个间隔开的同轴导电弹簧，其作为用于完成电路以启动焊接过程的开关触点。焊枪的手柄中的同轴的柔性壁围绕着两个弹簧，使得当焊机操作者压下柔性壁时，两个弹簧进行电接触以完成电路。当柔性壁被释放时，弹簧返回到其初始位置，从而中断电路。

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