摘要:
A sealed contact for use in electromagnetic relays has an inclined and/or indented contact cover together with an armature having a partial wedge-shaped cross section. The armature in its released state assumes a slanted position, and the electrical contacts are protected from voltage breakdown.
摘要:
In this multiple, magnetically-operable bistable reed arrangement, the reed tube contains two electrically separated, polarized contact sets each of which consists of two contact arms and an armature permanently connected to and magnetically separated from one of the contact arms. The respective associated contact arms are brought out as contact terminals at the same end of the reed tube and form, inside the reed tube, a magnetic operating air gap along with the free end of the armature, which projects into the space between the contact arms. Each of the armatures is suspended from one of the two associated contact arms by a non-magnetic spring, with the armatures being so arranged as to overlap each other considerably in order to mutually assist each other in their magnetic coupling when the operating coil is excited.
摘要:
A REED SWITCH WHEREIN EACH REED IS PROVIDED WITH A RELATIVELY THICKER POST EXTENDING ALONG THE REED AT THE SIDE REMOTE FROM THE OTHER REED AND THE POST IS SECURED TO THE FIXED END OF ITS REED ONLY.
摘要:
Contact device comprising an electrically conductive contact spring clamped tight at one end, whereas its freely movable end is located opposite a countercontact, and comprising an energizing coil controlling the contact spring and having its field extending in the direction of length of the contact spring, which is provided at its movable part near the clamped end with at least one permanent magnet surrounded by the energizing coil and polarized transversely of the direction of length of the contact spring.
摘要:
THE RELAY INCLUDES TWO SEALED REED SWITCHES, FOR SELECTIVELY CONNECTING A RADIO ANTENNA TO A RECEIVER OR TO A TRANSMITTER. THE RECEIVER SWITCH, SINCE IT CARRIES MUCH LESS VOLTAGE IS THE SMALLER OF THE TWO AND IS DESIGNED TO MINIMIZE INTRODUCTION OF SIDE EFFECTS IN THE MINUTE SIGNALS THAT IT CARRIES. A PERMANENT MAGNET MAINTAINS THE RECEIVER SWITCH CLOSED. THE SWITCHES ARE INSIDE AN ELECTROMAGNETIC COIL, WHICH WHEN ENERGIZED CLOSES THE LARGER SWITCH, AND BY OPPOSING THE FLUX OF THE PERMANET MAGNET, CAUSES THE SMALLER SWITCH TO OPEN UNER ITS NATURAL BIAS. THIS ASSEMBLY IS MOUNTED IN A METALLIC GROUNDED HOUSING THAT TERMINATES THREE COAXIAL CABLES OR THEIR CONNECTORS.