Load responsive trigger interval control for induction heating apparatus
having inversely parallel connected thyristors
    4.
    发明授权
    Load responsive trigger interval control for induction heating apparatus having inversely parallel connected thyristors 失效
    具有反并联连接晶闸管的感应加热装置的负载响应触发间隔控制

    公开(公告)号:US4209683A

    公开(公告)日:1980-06-24

    申请号:US943792

    申请日:1978-09-19

    CPC分类号: H05B6/062 H02M1/08 H02M5/27

    摘要: An induction heating apparatus of the invention is provided with a pair of inversely parallel connected thyristors which receives power from a low frequency energy source. Depending on the polarity of the source voltage, one of the thyristors is triggered into conduction by a control pulse generated in delayed response to a sensed forward bias potential at its anode for the purpose of supplying a forward current to a commutating circuit which is tuned to a high frequency in the ultrasonic range, whereupon a backward current is generated. The backward current is commutated through the other thyristor to complete a high frequency oscillation. A detector is provided to detect when the magnitude of the backward commutating current reaches a predetermined value for the purpose of terminating the trigger control pulse. The control pulses are supplied simultaneously to both thyristors through a pulse transformer which upon termination of the control pulse generates a counterelectromotive force which negatively biases the thyristor which has been conducting during the first half-cycle of each complete oscillation to reduce its turn-off time.

    摘要翻译: 本发明的感应加热装置具有从低频能量源接收功率的一对逆并联连接的晶闸管。 根据源极电压的极性,其中一个晶闸管被一个控制脉冲触发为导通,该控制脉冲以其在其阳极处的检测到的正向偏置电位的延迟响应中产生,以将正向电流提供给转换电路,该换向电路被调谐到 超声波范围内的高频,由此产生反向电流。 反向电流通过另一个晶闸管整流,完成高频振荡。 提供检测器,用于检测何时反向换向电流的大小达到预定值以终止触发控制脉冲。 控制脉冲通过脉冲变压器同时提供给两个可控硅,当脉冲变压器终止时,控制脉冲产生反电动势,负电流偏置在每次完全振荡的第一个半周期期间已经导通的晶闸管,以减少其关断时间 。

    Induction heating apparatus utilizing output energy for powering
switching operation
    5.
    发明授权
    Induction heating apparatus utilizing output energy for powering switching operation 失效
    感应加热装置利用输出能量为开关动作供电

    公开(公告)号:US4595814A

    公开(公告)日:1986-06-17

    申请号:US524436

    申请日:1983-08-18

    IPC分类号: H05B6/06 H05B6/12

    CPC分类号: H05B6/062 H05B2206/022

    摘要: An induction heating apparatus comprises a rectifier (2) for rectifying a voltage from an AC mains supply, a resonance circuit formed by an induction heating coil (4) and a capacitor (4), a semiconductor switching device (6) connected in circuit with the resonance circuit to the output of the rectifier, a diode (7) coupled in anti-parallel relationship with the switching device (6), and a circuit (17; 117, 118) for driving the switching device into conduction at a controlled frequency. Further provided is a transformer (14) which derives a low-frequency energy from the AC mains supply (1). A second coil (9) is electromagnetically coupled with the heating coil (4) for deriving a high-frequency energy. The low- and high-frequency energies are coupled by diodes (10, 11, 15, 16; 132, 133) to the driving circuit to provide power necessary to effect the conduction of the switching device.

    摘要翻译: 感应加热装置包括整流器(2),用于整流来自AC电源的电压,由感应加热线圈(4)和电容器(4)形成的谐振电路;半导体开关器件(6),其与 对整流器的输出端的谐振电路,与开关装置(6)反并联的二极管(7)和用于以受控频率驱动开关装置导通的电路(17; 117,118) 。 还提供了一种从AC电源(1)导出低频能量的变压器(14)。 第二线圈(9)与加热线圈(4)电磁耦合,用于导出高频能量。 低频和高频能量由二极管(10,11,15,15,16,132,133)耦合到驱动电路,以提供实现开关器件导通所需的电力。

    Frequency inverter
    6.
    发明授权
    Frequency inverter 失效
    变频器

    公开(公告)号:US4281378A

    公开(公告)日:1981-07-28

    申请号:US51202

    申请日:1979-06-22

    CPC分类号: H02M7/523

    摘要: A frequency inverter using thyristor(s), wherein a gate circuit produces both positive triggering signals and negative reverse-bias signals by utilizing outputs of the timer in order not to fail turnings of the thyristor, and the timing of both signals are automatically controlled to by synchronized with oscillation of the resonance circuit connected to the anode and the cathode of the thyristor, so as to respond to a change of load condition, so that always suitable triggering signals and reverse-bias signals are applied to the gate of the thyristor.

    摘要翻译: 一种使用晶闸管的变频器,其中门电路通过利用定时器的输出产生正触发信号和负反向偏置信号,以便不会使晶闸管失效,并且两个信号的定时被自动控制为 通过与连接到晶闸管的阳极和阴极的谐振电路的振荡同步,以响应负载条件的变化,使得始终合适的触发信号和反向偏置信号施加到晶闸管的栅极。

    Method of producing a copper alloy wire rod and copper alloy wire rod
    8.
    发明授权
    Method of producing a copper alloy wire rod and copper alloy wire rod 失效
    生产铜合金线材和铜合金线材的方法

    公开(公告)号:US08409375B2

    公开(公告)日:2013-04-02

    申请号:US12325657

    申请日:2008-12-01

    IPC分类号: C22F1/08 B22D11/06

    摘要: A method of producing a copper alloy wire rod, containing: a casting step for obtaining an ingot by pouring molten copper of a precipitation strengthening copper alloy into a belt-&-wheel-type or twin-belt-type movable mold; and a rolling step for rolling the ingot obtained by the casting step, which steps are continuously performed, wherein an intermediate material of the copper alloy wire rod in the mid course of the rolling step or immediately after the rolling step is quenched.

    摘要翻译: 一种铜合金线材的制造方法,其特征在于,包括:通过将析出强化铜合金的熔融铜浇注到带轮式或双带式可动模中获得锭的铸造工序; 以及轧制通过铸造步骤获得的锭的轧制步骤,连续进行这些步骤,其中在轧制步骤的中间阶段或刚刚在轧制步骤之后铜合金线材的中间材料被淬火。

    SMALL GAS-GENERATING DEVICE FOR GAS ACTUATOR AND PRETENSIONER SYSTEM
    9.
    发明申请
    SMALL GAS-GENERATING DEVICE FOR GAS ACTUATOR AND PRETENSIONER SYSTEM 有权
    用于气体执行器和预处理器系统的小气体发生装置

    公开(公告)号:US20100186615A1

    公开(公告)日:2010-07-29

    申请号:US12160937

    申请日:2007-01-17

    IPC分类号: B01J7/00 C06D5/00

    摘要: A gas generator including a cup filled with gas generant molded articles that generate gas by combustion, and an ignitor on which an ignition agent is disposed. Each gas generant molded article is formed of smokeless powders containing nitrocellulose as its major ingredient. Each gas generant molded article includes an explosive containing a fuel agent containing a guanidine derivative and/or a tetrazole derivative and an oxidizing agent containing a metal nitrate and/or perchlorate. Thus, it is possible to provide a gas generator by which the amount of CO gas generated in operation can be reduced and the combustion speed can easily be controlled, and to provide a pretensioner system provided with the gas generator.

    摘要翻译: 一种气体发生器,包括填充有通过燃烧产生气体的气体发生剂模制品的杯,以及设置着火剂的点火器。 每个气体发生剂模制品由含有硝化纤维素作为主要成分的无烟粉末形成。 每个气体发生剂模制品包括含有含有胍衍生物和/或四唑衍生物的燃料的炸药和含有硝酸金属盐和/或高氯酸盐的氧化剂。 因此,可以提供一种气体发生器,通过该气体发生器可以减少在操作中产生的CO气体的量,并且可以容易地控制燃烧速度,并且提供一种具有气体发生器的预紧器系统。

    Two-package curing type polyurethane coating composition and coated article
    10.
    发明授权
    Two-package curing type polyurethane coating composition and coated article 有权
    双包装固化型聚氨酯涂料组合物和涂层制品

    公开(公告)号:US07351476B2

    公开(公告)日:2008-04-01

    申请号:US10980185

    申请日:2004-11-04

    摘要: The present invention aims to give a two package curing type polyurethane coating composition which can form a film having soft, wet and dry feelings simultaneously and which maintains general properties such as designing property, film strength, pot life, resistance to scratching and discoloration, resistance to stains with fats and oils and the like, and to provide a coated article with the coating composition. The two package curing type polyurethane coating composition comprises a resin solution containing an acrylic polyol and a curing agent solution containing a polyisocyanate. The resin solution contains urethane resin beads (A) in the amount of 25 to 50 parts by weight and an organic matting agent (B) in the amount of 3 to 10 parts by weight, and the total of (A) and (B) is at least 30 parts by weight in 100 parts by weight of solid contents of the resin solution. And the equivalent ratio of OH groups/NCO groups of the acrylic polyol and the polyisocyanate is in the range of 4.5:1 to 1.5:1.

    摘要翻译: 本发明的目的在于提供一种可以同时形成具有柔软,湿润和干燥感觉的膜的两包装固化型聚氨酯涂料组合物,其保持一般性能,例如设计性能,膜强度,适用期,抗划痕和变色性,耐电阻性 用油脂等进行染色,并提供涂布制品与涂料组合物。 两种包装固化型聚氨酯涂料组合物包含含有丙烯酸多元醇的树脂溶液和含有多异氰酸酯的固化剂溶液。 树脂溶液含有25〜50重量份的聚氨酯树脂珠(A)和3〜10重量份的有机消光剂(B),(A)和(B)的总和 在100重量份的树脂溶液的固体成分中为至少30重量份。 丙烯酸多元醇和多异氰酸酯的OH基/ NCO基团的当量比在4.5:1至1.5:1的范围内。