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2010-12-10T16:52:45+01:00
2010-11-01T03:10:20Z
2010-12-10T16:52:45+01:00
Jouve S.A., EPO - Publication - KB, TaggedPDF v1.27
EP-0334393-A2-19890927
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EP-0334393-A2-19890927
An electromagnetic relay includes a coil (21) wound around a core both of whose ends (23a,23b) project therefrom. A yoke extends parallel thereto, and each of its ends is formed with two pole pieces (27) which extend towards and lie one of each side of an end of the core with a certain gap being defined therebetween. A connecting member extends parallel to the core and the yoke and is mounted so as to be movable transversely, and means (33-44) are provided for establishing and breaking some electrical connection according to such transverse movement. There are provided two armature pieces (29), one for each end of the core and both fixed to the connecting member. Each armature piece includes a permanent magnet plate (32) and two plates of magnetic material (31) fixed to it so as generally to form a C shape with one of the magnetic material plates being magnetized to be a north pole and the other a south pole. Each of the two plates of magnetic material is inserted on one side of an end of the core between it and the opposing one of the pole pieces of the yoke, into the gap therebetween. The directions of magnetization of the armature pieces are oppositely oriented. Thereby, when the relay switches over, it does so without generating any off center jerking, and thus its mounting to a base is improved. Also the quality of the magnetic circuit, and the manufacturability of the relay, are improved.
An electromagnetic relay includes a coil (21) wound around a core both of whose ends (23a,23b) project therefrom. A yoke extends parallel thereto, and each of its ends is formed with two pole pieces (27) which extend towards and lie one of each side of an end of the core with a certain gap being defined therebetween. A connecting member extends parallel to the core and the yoke and is mounted so as to be movable transversely, and means (33-44) are provided for establishing and breaking some electrical connection according to such transverse movement. There are provided two armature pieces (29), one for each end of the core and both fixed to the connecting member. Each armature piece includes a permanent magnet plate (32) and two plates of magnetic material (31) fixed to it so as generally to form a C shape with one of the magnetic material plates being magnetized to be a north pole and the other a south pole. Each of the two plates of magnetic material is inserted on one side of an end of the core between it and the opposing one of the pole pieces of the yoke, into the gap therebetween. The directions of magnetization of the armature pieces are oppositely oriented. Thereby, when the relay switches over, it does so without generating any off center jerking, and thus its mounting to a base is improved. Also the quality of the magnetic circuit, and the manufacturability of the relay, are improved.
en
European Patent Office
EP0334393
EP 0334393
H01H 51/22
Electromagnetic relay with symmetric reaction
Electromagnetic relay with symmetric reaction - European Patent Office - EP 0334393 A2
Electromagnetic relay with symmetric reaction - European Patent Office - EP 0334393 A2
Adobe PDF Library 8.0
"EP0334393"; "EP 0334393"; "H01H 51/22"; "Electromagnetic relay with symmetric reaction"
1.4
1
B
26
EP
0334393
A2
1989-09-27
89109083
1984-04-27
JP
6488883
1983-04-28
JP
12606183
1983-08-12
JP
18723283
1983-10-05
JP
18892583
1983-10-08
H01H 51/22
OMRON TATEISHI ELECTRONICS CO.
Bando, Yoshihide
Maenishi, Kozo
Nakanishi, Yoichi
WILHELMS, KILIAN & PARTNERPatentanwälte
Electromagnetic relay with symmetric reaction
Elektromagnetisches Relais mit symetrischer Rückwirkung
Electromagnetic relay with symmetric reaction
Relais électromagnétique avec réaction symétrique
An electromagnetic relay includes a coil (21) wound around a core both of whose ends (23a,23b) project therefrom. A yoke extends parallel thereto, and each of its ends is formed with two pole pieces (27) which extend towards and lie one of each side of an end of the core with a certain gap being defined therebetween. A connecting member extends parallel to the core and the yoke and is mounted so as to be movable transversely, and means (33-44) are provided for establishing and breaking some electrical connection according to such transverse movement. There are provided two armature pieces (29), one for each end of the core and both fixed to the connecting member. Each armature piece includes a permanent magnet plate (32) and two plates of magnetic material (31) fixed to it so as generally to form a C shape with one of the magnetic material plates being magnetized to be a north pole and the other a south pole. Each of the two plates of magnetic material is inserted on one side of an end of the core between it and the opposing one of the pole pieces of the yoke, into the gap therebetween. The directions of magnetization of the armature pieces are oppositely oriented. Thereby, when the relay switches over, it does so without generating any off center jerking, and thus its mounting to a base is improved. Also the quality of the magnetic circuit, and the manufacturability of the relay, are improved.
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