Factory testable igniter module for a vehicle supplemental restraint system
    1.
    发明授权
    Factory testable igniter module for a vehicle supplemental restraint system 有权
    用于车辆补充约束系统的工厂可测试点火器模块

    公开(公告)号:US06363852B1

    公开(公告)日:2002-04-02

    申请号:US09708105

    申请日:2000-11-06

    IPC分类号: F42B313

    摘要: An improved modular igniter package designed for bus communication with a central control module has an internal bridge element that is electrically accessible for factory testing of the bridge element. Temporary electrical interconnects internal to the igniter package electrically couple the bridge element to a pair of external bus communication terminals, enabling direct access to the bridge element by factory test equipment for accurate measurement of electrical parameters such as electrical resistance and thermal capacitance. Following measurement of the electrical parameters, the temporary interconnects are electrically destroyed, isolating the bus communication terminals from the bridge element. The temporary interconnects are preferably in the form of a pair of metal fuse elements, which are electrically destroyed by electrical currents passing through the fuse elements and respective diodes coupling the bridge element to a ground terminal of the igniter package.

    摘要翻译: 设计用于与中央控制模块进行总线通信的改进的模块化点火器组件具有内部桥接元件,其可电气访问以用于桥接元件的出厂测试。 点火器组件内部的临时电气互连将桥接元件电耦合到一对外部总线通信终端,使得能够通过工厂测试设备直接访问桥接元件,以精确测量诸如电阻和热电容的电气参数。 在测量电气参数之后,临时互连被电破坏,使总线通信终端与桥接元件隔离。 临时互连优选地是一对金属熔丝元件的形式,这些金属熔丝元件由通过熔丝元件的电流和将桥元件耦合到点火器封装的接地端子的相应二极管电性破坏。

    Electrical fuse
    2.
    发明授权
    Electrical fuse 失效
    电熔丝

    公开(公告)号:US06269745B1

    公开(公告)日:2001-08-07

    申请号:US09355791

    申请日:1999-08-03

    IPC分类号: F42B313

    摘要: The present invention relates to an electrical fuse element (1) which comprises at least one fusible conductor (3) and a carrier (2). The object is to provide a fuse element (1) for all known tripping characteristics in a cost-effective production technique for the middle and low-current range. Furthermore, by means of a small outer geometry, the fuse element (1) is to be adaptable to modem methods of insertion. The way in which this object is achieved according to the invention is that the carrier (2) consists of a material of poor thermal conduction, in particular of a glass ceramic.

    摘要翻译: 本发明涉及一种电熔丝元件(1),其包括至少一个可熔体导体(3)和载体(2)。 本发明的目的是在中低电流范围的成本有效的生产技术中提供用于所有已知脱扣特性的熔丝元件(1)。 此外,通过小的外部几何形状,熔丝元件(1)能够适应于调制解调器的插入方式。 根据本发明实现该目的的方式是载体(2)由热传导不良的材料组成,特别是玻璃陶瓷。

    Voltage-protected semiconductor bridge igniter elements
    3.
    发明授权
    Voltage-protected semiconductor bridge igniter elements 有权
    电压保护半导体桥式点火器元件

    公开(公告)号:US06199484B1

    公开(公告)日:2001-03-13

    申请号:US09333105

    申请日:1999-06-15

    IPC分类号: F42B313

    CPC分类号: F42B3/18 F42B3/13

    摘要: A semiconductor bridge igniter device (10) having integral voltage anti-fuse protection provides an electric circuit including a first firing leg and, optionally, a monitor leg. The first firing leg includes a first semiconductor bridge having semiconductor pads (14a, 14b) separated and connected by a bridge (14c) and having metallized lands (16a, 16b) disposed over the pads (14a, 14b) so that an electrical potential applied across the metallized lands (16a, 16b) will cause sufficient current to flow through the firing leg of the electric circuit to release energy at the bridge (14c). A dielectric layer (15) is interposed within the first firing leg and has a breakdown voltage equal to a selected threshold voltage (Vth) and therefore provides protection against the device functioning at voltages below the threshold voltage (Vth). A continuity monitor leg of the electric circuit is comprised of either a fusible link (34) or a resistor (36) disposed in parallel to the first firing leg. A second firing leg may be provided which includes a second semiconductor bridge formed similar to the first semiconductor bridge although being mounted to receive a reverse polarity voltage from that of the first semiconductor bridge in order to reduce variations in firing voltage. A capacitor may be employed in parallel with the first firing leg in order to, e.g., reduce the effects of static electricity.

    摘要翻译: 具有整体电压抗熔丝保护的半导体桥接点火装置(10)提供包括第一射击支路和任选的监视器支路的电路。 第一射击腿包括具有由桥(14c)分离并连接并且设置在焊盘(14a,14b)之上的金属化焊盘(16a,16b)的半导体焊盘(14a,14b)的第一半导体桥,使得施加电位 穿过金属化区域(16a,16b)将导致足够的电流流过电路的击发腿以释放桥(14c)处的能量。 电介质层(15)被置于第一击发腿内并且具有等于所选择的阈值电压(Vth)的击穿电压,因此在低于阈值电压(Vth)的电压下提供对器件的保护作用。 电路的连续性监视器支路由与第一发射支腿平行设置的可熔连接件(34)或电阻器(36)组成。 可以提供第二击发腿,其包括类似于第一半导体桥形成的第二半导体桥,虽然安装成接收与第一半导体电桥相反的极性电压,以便减小点火电压的变化。 为了例如减少静电的影响,可以使用电容器与第一射出支腿平行。