Circular cam for driving gear of isolating switch and its making method

Application Number: 00103046
Application Date: 2000.02.22
Publication Number: 1264907
Publication Date: 2000.08.30
Priority Information: 1999/2/24 DE 19907887.4
International: H01H3/42;H01H31/00;H01H33/42;H02B13/035
Applicant(s) Name: Asea Brown Boveri
Inventor(s) Name: David Sarksl;Markuss Sibinden
Patent Agency Code: 72002
Patent Agent: liu xinpeng
Abstract This control cam is a part of a driving device for a disconnector. At least one guide curved part is formed in this control cam. This guide curved part is constituted with two circular arc portions. These portions merge at a stopping position existing between these portions. One guide member is penetrated through this guide curved part. This guide member is fixed to one driving shaft via one lever not to move. Depending on a rotation direction and an angle position of this driving shaft, a force is transmitted to this control cam through this guide member. A lower load region of the control cam during changeover is made of material extremely lighter than material for higher load regions in a range of the stopping position, which allows a dynamic characteristic optimal to movement of a control cam and minimizes driving energy required for changeover.