公开(公告)号：WO1997037363A1

公开(公告)日：1997-10-09

申请号：PCT/US1997006942

申请日：1997-03-27

Applicant: SQUARE D COMPANY

Inventor： SQUARE D COMPANY ,  OSWOOD, Jon, W. ,  BODIN, James, P. ,  SIEBELS, Randy, L. ,  WEHR, Eugene, W.

IPC: H01H01/02

CPC classification number: H01H1/027 ,  H01H1/023

Abstract: An electrical contact for use in an electrical switching device is provided having low contact resistance, high wear resistance and high anti-weld characteristics. The contact includes a material composition of between 0.2 and 8 % by weight Gr, between 10 and 90 % by weight W and the remaining mixture consisting of Ag. The contact is manufactured using a process which yields a unique microstructure characterized by not having an interconnected Gr network around the Ag thereby providing a strong Ag to Ag bond. This process includes the steps of adding the appropriate amounts of Ag, W and Gr powder material together, blending together under low shear conditions to provide a homogeneous powder mixture while prohibiting the Gr from smearing onto the Ag, pressing the material mixture to form a contact, and then sintering and coining the contact.

Abstract translation: 提供了一种用于电气开关装置的电触点，其具有低接触电阻，高耐磨性和高抗焊接特性。 接触包括0.2至8重量％的Gr，10至90重量％的W和剩余的由Ag组成的材料组成。 接触是使用产生独特微结构的方法制造的，其特征在于在Ag周围不具有互连的Gr网络，从而提供强的Ag至Ag键。 该方法包括以下步骤：将适量的Ag，W和Gr粉末材料加入到一起，在低剪切条件下共混在一起，以提供均匀的粉末混合物，同时禁止Gr涂抹在Ag上，压制材料混合物以形成接触 ，然后烧结和压印接触。

公开(公告)号：WO1993022784A1

公开(公告)日：1993-11-11

申请号：PCT/US1993004009

申请日：1993-04-29

Applicant: SQUARE D COMPANY

Inventor： SQUARE D COMPANY ,  EDDS, Thomas, A. ,  SCOTT, Gary, W. ,  SORTLAND, Matthew, D. ,  WEHR, Eugene, W. ,  WINTER, John, M. ,  FIXEMER, James, V. ,  WAGNER, Charles, H.

IPC: H01H73/04

CPC classification number: H01H73/04 ,  H01H71/0214 ,  H01H71/524 ,  H01H73/18

Abstract: A miniature circuit breaker is provided which is adapted to improve automatic assembly of all components. Key components of the breaker are individually and collectively designed to be susceptible to total Z-axis assembly. In particular, the circuit breaker operating mechanism which operates the contacts (45, 46) to make or break the electric circuit is formed of elements designed to interact in a Z-axis assemblable fashion. The movable contact (45) is defined on a contact carrier or blade assembly (41) which is adapted for Z-axis assembly and also provides increased arc erosion resistance and improved opening of the breaker contacts.

Abstract translation: 提供了一种微型断路器，其适于改进所有部件的自动组装。 断路器的关键部件被单独和集体设计为易受Z轴组装的影响。 特别地，操作触点（45,46）以产生或断开电路的断路器操作机构由设计成以Z轴可组合的方式相互作用的元件形成。 活动触点（45）限定在适用于Z轴组件的接触载体或叶片组件（41）上，并且还提供增加的抗电弧侵蚀性和改善断路器触头的打开。