会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 31. 发明公开
    • Method of manufacturing spark plug
    • EP2733800A3
    • 2015-07-29
    • EP13193515.7
    • 2013-11-19
    • NGK Spark Plug Co., Ltd.
    • Kyuno, Jiro
    • H01T13/60H01T21/06
    • [Object] To provide a technology such that a decision about dielectric breakdown of an insulator can be made accurately.
      [Solution] A method for manufacturing a spark plug includes: a preparation step of preparing a specimen provided with a center electrode, an insulator, a metal shell, and a ground electrode; and an inspection step of applying a predetermined voltage between the ground electrode and the center electrode of the prepared specimen, and determining whether dielectric breakdown is caused in the insulator. The inspection step includes a calculation step of receiving an oscillating wave generated from the specimen upon application of the predetermined voltage to the specimen, obtaining a power spectrum by subjecting an oscillating wave signal representing the oscillating wave to fast Fourier transform, and then calculating an integral of a predetermined frequency range in the power spectrum, and a judgment step of judging whether discharge is caused by dielectric breakdown of the insulator by utilizing the integral.
    • 33. 发明公开
    • Method of manufacturing spark plug
    • 火花塞的制造方法
    • EP2733800A2
    • 2014-05-21
    • EP13193515.7
    • 2013-11-19
    • NGK Spark Plug Co., Ltd.
    • Kyuno, Jiro
    • H01T13/60H01T21/06
    • [Object] To provide a technology such that a decision about dielectric breakdown of an insulator can be made accurately.
      [Solution] A method for manufacturing a spark plug includes: a preparation step of preparing a specimen provided with a center electrode, an insulator, a metal shell, and a ground electrode; and an inspection step of applying a predetermined voltage between the ground electrode and the center electrode of the prepared specimen, and determining whether dielectric breakdown is caused in the insulator. The inspection step includes a calculation step of receiving an oscillating wave generated from the specimen upon application of the predetermined voltage to the specimen, obtaining a power spectrum by subjecting an oscillating wave signal representing the oscillating wave to fast Fourier transform, and then calculating an integral of a predetermined frequency range in the power spectrum, and a judgment step of judging whether discharge is caused by dielectric breakdown of the insulator by utilizing the integral.
    • 本发明的目的在于提供一种能够准确地进行绝缘体的绝缘破坏判定的技术。 用于制造火花塞的方法包括:准备步骤,准备设置有中心电极,绝缘体,金属壳和接地电极的样本; 以及检查步骤,在接地电极和所制备的样本的中心电极之间施加预定电压,并且确定绝缘体中是否导致绝缘击穿。 该检查步骤包括:计算步骤,用于在向样本施加预定电压时接收从样本产生的振荡波,通过对表示振荡波的振荡波信号进行快速傅立叶变换获得功率谱,然后计算积分 以及功率谱中的预定频率范围的功率谱;以及判断步骤,通过利用积分来判断绝缘材料的绝缘击穿是否导致放电。
    • 35. 发明公开
    • METHOD FOR MANUFACTURING SPARK PLUG AND DEVICE FOR MANUFACTURING SPARK PLUG
    • 制造火花塞的方法和用于制造火花塞的装置
    • EP2337172A1
    • 2011-06-22
    • EP09818919.4
    • 2009-09-24
    • NGK Sparkplug Co., Ltd.
    • KURE, KeisukeENUMA, Masahiro
    • H01T13/20H01T21/02H01T21/06
    • H01T21/02H01T13/32H01T21/06H01T23/00
    • Even after a metallic shell and an insulator are assembled together, a ground electrode can be bent at a position closer to the proximal end thereof, and a spark discharge gap can be formed accurately. A bending apparatus 51 used in a process of manufacturing a spark plug includes a pre-bending apparatus 61, a main bending apparatus 71, and a gap adjustment apparatus 81. The pre-bending apparatus 61 includes first deformation prevention means which has a curved surface portion corresponding to a bent shape of the ground electrode and prevents deformation of the ground electrode, and a roller which presses the ground electrode against the curved surface portion to thereby perform pre-bending work on the ground electrode. The main bending apparatus 71 includes second deformation prevention means for preventing deformation of the ground electrode, and pressing means for performing main bending work on the ground electrode. The gap adjustment apparatus 81 includes gap adjustment means for relatively moving a distal end portion of the ground electrode in relation to the center electrode along a direction perpendicular to an axis.
    • 即使在将金属壳和绝缘体组装在一起之后,接地电极也可以在更靠近其近端的位置处弯曲,并且可以精确地形成火花放电间隙。 在制造火花塞的过程中使用的弯曲装置51包括预弯曲装置61,主弯曲装置71和间隙调整装置81.预弯曲装置61包括第一变形防止装置,该第一变形防止装置具有弯曲表面 对应于接地电极的弯曲形状并且防止接地电极变形的部分以及将接地电极压靠在弯曲表面部分上从而对接地电极执行预弯曲工作的辊。 主弯曲设备71包括用于防止接地电极变形的第二变形防止装置和用于对接地电极执行主弯曲加工的加压装置。 间隙调整装置81包括间隙调整装置,用于使接地电极的远端部分相对于中心电极沿垂直于轴线的方向相对地移动。