An electromagnetic relay includes an electromagnet; an armature driven by a magnetic force of the electromagnet and configured to rotate with respect to the electromagnet; a card configured to linearly move when pressed by the armature; a movable contact point moving together with the card; a fixed contact point with which the movable contact point comes into contact or out of contact in response to rotation of the armature; and a housing for storing the electromagnet, the armature, the card, the movable contact point and the fixed contact point, the electromagnet and the fixed contact point being fixed to the housing. The armature includes at least one armature member made of a magnetic material and a connector piece made of a plastically deformable material, the connector piece being arranged between the armature member and the card.

To provide a relay that has high assembling accuracy and reduced variations in operation characteristics. Therefore, a contact point block 30 is constructed of a supporting shaft 58 with its both ends spanning a contact point base 31, a movable iron piece 50 to a lower surface of which a plate spring 53 is fixed and which is supported on the supporting shaft 58 so as to be rotatable, and plungers 43, 44 which are inserted through operation holes 31a, 31b of the contact point base 31 so as to be movable up and down and whose lower end portions protruding from a lower surface of the contact point base 31 are provided with movable contact points 45, 46, respectively. An upper and lower surfaces of the contact point block 30 are held by the electromagnetic unit 60 that directly fixes a first and second iron cores 76, 77 to an upper surface of the contact point base 30 and the base block 11 in which fixed contact points 21a, 22a, 23a are placed at positions opposite to the movable contact points 45, 46 so as to be able to be contacted with and separated from the movable contact points 45, 46.

A high-frequency relay includes: a base block (1) having fixed terminals insert-molded to expose fixed contacts; an electromagnetic block (4) mounted on the base block and for rotating a movable iron piece (54) due to excitation and demagnetization; and movable blocks (3) interlocking with a rotation operation of the movable iron piece (54) so as to be connected with and disconnected from the fixed contacts of the base block (1). A push-in spring (57) for pushing one of the movable blocks is provided in the movable iron piece. The push-in spring (57) includes a fixed portion fixed to the movable iron piece, a pressure portion for applying pressure to the movable block, and foot portions each extending substantially perpendicularly to the movable block wherein extending directions of the foot portions cane be adjusted.

Ahiqh-frequencyrelayincludes: a base block having fixed terminals insert-molded to expose fixed contacts; an electromagnetic block mounted on the base block and for rotating a movable iron piece due to excitation and demagnetization; and movable blocks interlocking with a rotation operation of the movable iron piece so as to be connected with and disconnected from the fixed contacts of the base block. A push-in spring for pushing one of the movable blocks is provided in the movable iron piece. The push-in spring includes a fixed portion fixed to the movable iron piece, a pressure portion for applying pressure to the movable block, and foot portions each extending substantially perpendicularly to the movable block wherein extending directions of the foot portions cane be adjusted.

Ahigh-frequency relay includes: a base block having fixed terminals insert-molded to expose fixed contacts on the upper surface; an electromagnetic block having a coil wound around an iron core through a spool; and mounted on the base block, and movable blocks having movable contacts driven in accordance with excitation and demagnetization of the electromagnetic block so as to be connected with and disconnected from the fixed contacts of the base block. The movable blocks have movable iron pieces to be connected with and disconnected from the fixed contacts of the fixed terminals. A return spring is provided for elastically supporting each of the movable blocks so as to make the movable block accessible vertically to the upper surface of the base block. The return spring is disposed to be biased to one of the fixed terminals.

Le procédé de réglage thermique de la bilame consiste à fixer un pion de réglage sur la barre de déclenchement au moyen d'un soudage au laser lorsque la bilame atteint une première température prédéterminée, puis à contrôler le déclenchement à une deuxième température avec ou sans action sur une vis de positionnement de la barre.

Application : réglage usine d'un déclencheur thermique à bilame.

A movable condition-responsive member such as a snap-acting dished metal member is mounted in a condition-responsive device to move between spaced dispositions such as between the original and inverted dished configurations of a dished metal member in response to occurrence of selected pressure, force or temperature conditions. The member is arranged to engage and move the device control elements during such movement to perform control functions. A series of artifacts (16) such as laser-melted portions of the metal materials embodied in the member are provided in the surface of the member, typically after the member is assembled in the control device. Each artifact establishes a local pattern of stresses in the member at variance with a pattern of stresses in the member adjacent to the artifacts, and the artifacts cooperate to precisely determine the condition which results in the snap-acting member movement. The member is initially formed and processed in conventional manner to provide the member with intended initial condition-response properties differing by selected value from the properties ultimately to be established in the member, and is tested to display its actual properties as initially formed. The artifacts are each proportioned to modify the condition-response properties by only a small increment of said value and they are formed in sequence, typically after member assembly in the device, as the response of the device is tested to precisely determine the condition-response properties of the member in the device.

Zum Justieren von Kontaktfedern wird ein Laserstrahl (13) gezielt auf bestimmte Punkte eines Matrixfeldes auf der zu justierenden Kontaktfeder (8) gerichtet. Für jeden der Punkte ist der erreichbare Justierweg in einem Speicher (SP2) gespeichert. Durch Postionsbestimmung des Ankers (5) bzw. der Kontaktfeder (8) mittels einer elektrooptischen Vorrichtung (16) und durch Vergleich des Meßergebnisses mit den gespeicherten Korrekturwerten werden diejenigen Punkte ausgewählt, die mit dem Laserstrahl bestrahlt werden.

Magnetauslöser für Fehlerstromschutzschalter mit Polschuhen (5, 6, 7), Permanentmagnet (1), Auslösespule (2) Anker (3) und Nebenschluß (4), bei welchem die gewünschte Aufteilung des Flusses über den Anker (3) einerseits und über den Nebenschluß (4) andererseits durch eine mittels Quetschung nach der Glühbehandlung erzeugte Zone (8) mit erhöhtem magnetischen Widerstand im Nebenschluß (4) bewirkt wird.