Hella Kg Hueck and Co.

Wolfgang Hoffmann

Maik Zimmer

Andre Korner

Andreas Grueber

An armature-mounting arrangement for a hinged-armature relay includes a yoke (3), an armature (1) positioned at an end portion of the yoke, and an armature holding spring (2) which has at least one switching contact thereon and which is mechanically coupled to the armature. The armature holding spring is formed as one piece with a return spring (5) for the armature and also with spring hooks (4). Each of the spring hooks has a first portion (4a) lying substantially flat on an outer side of the armature and a second portion (4b) extending from the first portion about the armature and lying almost flat against an outer surface of the yoke. This armature-mounting arrangement is a particularly uncomplicated and cost effective structure and its operation is also not particularly sensitive to fabrication tolerances of the armature and the yoke.

Armature-mounting arrangement for a hinged-armature relay

An electromagnetic hinged-armature relay comprises a contact spring (2) which is arranged on and attached to an armature (1). The contact spring serves as a switching contact spring and has a bounce dampener which is in the form of a swing element (3) made as one piece with the contact spring which greatly reduces bounces of contacts and contact wear resulting therefrom.

Electromagnetic hinged-armature relay

An electromagnetic relay constructed as a hinged-armature relay in which an armature (5) is attached to a flat-shaped spring (6) which spring is constructed as one piece to serve both as a switch-contact spring and as a return spring and which is mechanically and electrically coupled to a load-current terminal (11), with the load-current terminal having a spring affixing area (11a) and a terminal area (11b), wherein the spring affixing area and the terminal area of the load-current terminal are bendable relative to one another. A response voltage of such a relay can be adjusted in a particularly uncomplicated and quick manner using a wedge-shaped adjusting tool (12) to bend the affixing area relative to the terminal area.

Electromagnetic relay and method of adjustment of a response voltage

A substantially rectangularly shaped enclosure hood has, in an area of an upper covering plate differently shaped grooves formed therein. These grooves serve as an aid in orientation during mounting as well as an extraction aid for a finished, assembled device.

Enclosure hood

An armature support for a hinged relay has beveled bearing surfaces which force the armature, when the armature is displaced, into a rotational movement about a center of a switch contact. In this manner, structural tolerances of the hinged relay, as well as axial play in the armature support, are balanced out to avoid a switch contact displacement.

Armature support for a hinged relay

A process for the adjustment of various components of a relay involves use of measuring devices which monitor the respective components as they are slid, or shoved, into mounting positions and, in response to the components achieving correct, or desired, positions, automatically issue signals to welding apparatus to automatically weld the components in these desired positions relative to a base plate. The process of this invention is particularly suited for uncomplicated, cost-effective and fully automatic adjustments of relay components during their assembly, and this is particularly true for small-structure, or micro, relays.

Process for the adjustment of various components of a relay

An electromagnetic relay having an uncomplicated and cost-effective construction includes a switching contact spring (5) that is adjustable in a particularly uncomplicated manner for controlling actuation sensitivity. In this manner, in particular, actuation can be influenced by a value of a minimum attraction voltage.

Electromagnetic relay and method of adjusting same

An electromagnetic relay has a normally-open contact tongue (2) with at least one finger (24a) which, during mounting, is first slidably engaged in a drawer-cavity-forming element (25). After adjusting a normally-open contact (3) relative to a movable switch-contact (4a) the position of the at least one finger is affixed in the drawer-cavity-forming element so that the position of the normally-open contact is fixed. The relay of this invention is characterized by having a particularly uncomplicated structure and by allowing a particularly uncomplicated, cost-effective, and fully-automated adjustment of the normally-open contact.

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Lippstadt, Germany

Wolfgang Hoffmann