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    EXCESS VOLTAGE CIRCUIT-BREAKER WITH A ROTATIONAL DISC AND AN ELECTRONIC ASSEMBLY TO IMPROVE OPERATION RELIABILITY
    1.
    发明授权
    EXCESS VOLTAGE CIRCUIT-BREAKER WITH A ROTATIONAL DISC AND AN ELECTRONIC ASSEMBLY TO IMPROVE OPERATION RELIABILITY 有权
    带有旋转圆盘和电子组件的超高压断路器以提高操作可靠性

    公开(公告)号：EP2537164B1

    公开(公告)日：2018-03-07

    申请号：EP11713385.0

    申请日：2011-02-18

    申请人： CRDCE d.o.o.

    发明人： BURGER, Miran ,  VUKOTIC, Milenko ,  JURICEV, Igor

    IPC分类号： H01C7/12 ,  H01H37/08 ,  H02H9/04

    CPC分类号： H01C7/126 ,  H01C7/02 ,  H01H37/08 ,  H01H37/761 ,  H02H9/042

    摘要： The excess voltage circuit breaker with a rotational disc and an electronic assembly to improve operation liability solves a problem of construction of electronic and mechanical disconnection of a connection terminal of an excess voltage protective element based on e. g. spark gaps, varistors, semi-conductors like diodes, thyristors and similar elements in case of occurrence of electric arc and electric thermal overloads. The essence of the excess voltage circuit breaker of the invention lies in an electronic assembly of a component (2) which comprises a resistor (PTC) with positive thermal coefficient which is connected in parallel to a gas circuit breaker (GDT). The resistor (PTC) is a resistor (2d) in the embodiment. The circuit breaker (GDT) comprises two gas circuit breakers (2b and 2c), wherein the common exit point of the resistor (2d) and the circuit breaker (GDV) is via thermal member (V), which is simultaneously a connection electrode (2f) arranged on a varistor (2a) body. The electronic assembly of the component (2) functions in a way that in case of rapid transition events a branch with the gas circuit breaker (GDT) is operable and in case of sporadically increased voltages the branch via the resistor (2d) is operable. The resistor (2d) with positive thermal coefficient limits the current through the varistor (2a). The varistor (2a) in low ohmic state allows high current to run through the varistor (2a) thus enabling the operation of external over-current protection. The movement of the connection electrode (2f) triggers the movement of the rotational disc (4), the spring (5), the latching plate (6) which changes the state of the indicator (8).

    HIGH-VOLTAGE DIRECT-CURRENT TEMPERATURE FUSE
    3.
    发明公开
    HIGH-VOLTAGE DIRECT-CURRENT TEMPERATURE FUSE 审中-公开
    高压直流保险丝

    公开(公告)号：EP3244437A1

    公开(公告)日：2017-11-15

    申请号：EP15788772.0

    申请日：2015-05-06

    申请人： Xiamen Set Electronics Co., Ltd

    发明人： HONG, Yaoxiang ,  XU, Yousheng ,  XU, Zhonghou

    IPC分类号： H01H85/38

    CPC分类号： H01H85/38 ,  H01H37/04 ,  H01H37/761 ,  H01H85/04 ,  H01H85/30 ,  H01H85/46 ,  H01H2037/762 ,  H01H2085/381

    摘要： A high-voltage direct-current temperature fuse at least comprises a high-voltage low-current temperature fuse (300) connected to a high-voltage direct-current circuit. The high-voltage low-current temperature fuse comprises a casing (301), fusible alloy wires (303) encapsulated in the casing and two pins (306, 307) extending out of the casing, wherein the fusible alloy wires are connected between the two pins. One of the pins is sequentially sleeved with an arc extinguishing sleeve (304) and a spring (305). One end of the arc extinguishing sleeve is in contact with the fusible alloy wires; and the other end of the arc extinguishing sleeve is in contact with the spring. One end of the spring is connected to the inner end face of the casing; and the spring is in a compressed state. The high-voltage direct-current temperature fuse further comprises a conventional temperature fuse (100) connected in parallel with the high-voltage low-current temperature fuse; or further comprises a current fuse (200) connected in series with the high-voltage low-current temperature fuse. The high-voltage direct-current temperature fuse solves the problem of timely arc cutting-off and can be directly applied to a high-voltage direct-current circuit.

    摘要翻译： 高压直流温度保险丝至少包括连接到高压直流电路的高压小电流温度保险丝（300）。 高压小电流温度保险丝包括壳体（301），封装在壳体中的易熔合金丝（303）以及从壳体伸出的两个销（306,307），其中可熔合金丝连接在两个 引脚。 其中一个销子依次套上灭弧套筒（304）和弹簧（305）。 灭弧套管的一端与易熔合金丝接触， 灭弧套的另一端与弹簧接触。 弹簧的一端连接到壳体的内端面; 并且弹簧处于压缩状态。 高压直流温度保险丝还包括与高压小电流温度保险丝并联的常规温度保险丝（100） 或者还包括与高压小电流温度保险丝串联连接的电流保险丝（200）。 高压直流温度保险丝解决了及时灭弧的问题，可直接应用于高压直流电路。

    PROTECTIVE DEVICE
    9.
    发明公开
    PROTECTIVE DEVICE 审中-公开
    SCHUTZVORRICHTUNG

    公开(公告)号：EP3116013A1

    公开(公告)日：2017-01-11

    申请号：EP15758847.6

    申请日：2015-03-04

    申请人： Littelfuse Japan G.K.

    发明人： IWAI, Masaaki ,  YOKOTA, Takayuki

    IPC分类号： H01H37/76 ,  H01H85/02

    CPC分类号： H01H85/0241 ,  H01H37/34 ,  H01H37/761 ,  H01H85/36 ,  H01H2235/01 ,  H02H5/048 ,  H02H9/026

    摘要： The present invention proposes a protection device which has a large rated voltage and a large rated current, which is capable of sufficiently suppressing arc generation during activation, and which is also capable of providing suitable protection against overcurrent due to short circuiting or the like of a main circuit. The protection device of the present invention includes (i) a protection element which includes a first thermal fuse and a resistor, and in which the resistor generates heat as a result of current passing through the resistor when there are abnormalities, and the first thermal fuse is activated due to this heat and interrupts the current, (ii) a PTC element and a second thermal fuse which are electrically connected in parallel to the first thermal fuse and which are electrically connected in series to each other, and (iii) a current fuse which is electrically connected in series to the first thermal fuse.

    摘要翻译： 本发明提出一种具有大额定电压和大额定电流的保护装置，其能够充分地抑制起动时的电弧产生，并且还能够提供适当的防止由于短路等引起的过电流 主电路 本发明的保护装置包括：（i）保护元件，其包括第一热熔丝和电阻器，并且当存在异常时，电阻器通过电阻器产生热量，并且第一热熔丝 由于这种热而被激活并中断电流，（ii）PTC元件和第二热熔丝，它们彼此并联地电连接到第一热熔丝，并且彼此串联电连接;以及（iii）电流 保险丝与第一热熔断器串联电连接。