公开(公告)号：US20140125441A1

公开(公告)日：2014-05-08

申请号：US14111543

申请日：2012-04-13

申请人： Yin Hongping ,  Qian Jinhua ,  Yang Yuzhu

发明人： Yin Hongping ,  Qian Jinhua ,  Yang Yuzhu

IPC分类号： H01F27/28 ,  H01F41/04

CPC分类号： H01F27/2852 ,  G01R15/183 ,  G01R21/06 ,  H01F38/28 ,  H01F41/04 ,  Y10T29/4902

摘要： Disclosed is a large-current transformer for an electronic round power meter, including a current sampling coil (2) and a current stick (1), where the current stick is a slotted stick, a middle section of the slotted stick is sleeved with the current sampling coil, inner slots at two ends of the slotted stick are inlaid with a first current insert (8) and a second current insert (10) respectively. The current transformer is easy to mount, has a reliable connection, a low temperature increase, high precision, and a low cost. A method of making the large-current transformer for an electronic round power meter includes: stamping a copper sheet into a flat current connector and a U-shaped current stick; where the U-shaped current stick passes through an inner hole of the current sampling coil, the flat current connector is inserted into inner slots at two ends of the U-shaped current stick, and the flat current connector is riveted firmly with the U-shaped current stick by means of riveting or spot welding. The method has fewer processes, high efficiency, and is suitable for large-batch production.

摘要翻译： 公开了一种用于电子圆形功率计的大电流互感器，包括电流采样线圈（2）和电流棒（1），其中当前棒是开槽棒，开槽棒的中间部分与 电流采样线圈，开槽棒的两端的内槽分别与第一电流插入件（8）和第二电流插入件（10）嵌入。 电流互感器易于安装，连接可靠，温升低，精度高，成本低。 制造电子圆形功率计的大电流互感器的方法包括：将铜片冲压成扁平电流连接器和U形电流棒; 其中U形电流棒通过电流采样线圈的内孔，扁平电流连接器插入到U形电流棒的两端的内槽中，扁平电流连接器牢固地铆接在U形电流棒上， 通过铆接或点焊来形成电流棒。 该方法工艺较少，效率高，适合大批量生产。