Robert Boschgmbh

Arno Altpeter

Carsten Bauer

Uwe Hammer

Albert Gerhard

Johannes Meiwes

Friedrich Wendel

Siegfried Mayer

Dieter Dick

Rolf Mayer

Holger Haussmann

Vesna Biallas

Rolf Bald

Manfred Franz

Henning Stilke

Wolfgang Staudenmaier

Manfred Roessler

Siegfried Schuler

Gerd Bassler

Martin Schwerdtle

Michael Altmann

Gerhard Kirschner

Egon Waldvogel

Joerg Streller

Rainer Brachert

Godehard Schmitz

Thomas Richard

Frank Frankenhauser

Ultrasonic welding process and ultrasonic welding device and weld produced thereby

The rectifier arrangement, preferably for a three-phase generator for a motor vehicle, has at least one power diode of positive polarity and at least one power diode of negative polarity assigned to respective half waves of each phase of the three-phase current and a cooling arrangement for the power diodes, the power diodes of like polarity being arranged on respective heat sinks in an electrically and thermally conductive fashion, and the heat sinks being sandwiched together with at least one electrically insulating part (32) which contains the electrical conductors between the diodes and the three-phase winding. The electrically conductive connections of the power diodes (12, 14) of positive and negative polarity to the phases (U, V, W) of the three-phase generator extend within the electrically insulating part (32) so that electrical contact is made with the power diodes (12, 14) of positive and negative polarities in respective cavities (40, 44) in the insulating part (32) via in each case one spring element. A punched grid (34) for each of the phases (U, V, W) extends in the cavities and includes conductor tracks (50) and spring elements (48, 49) for making electrical contact between pairs of power diodes of opposite polarity and each phase.

Rectifier arrangement, especially for a three-phase generator for a

A method for positionally securing two components together, in which a hollow body is introduced into the two components. Once the final position of the components relative to one another has been established, the hollow body is driven directly into the second component with the application of axial pressure and sonic energy. The method is suitable for employment with thermoplastic components whose relative position to one another is known beforehand, an example being in the assembly of housing parts of a rotary adjuster for controlling a flow cross section in internal combustion engines.

Method for positionally securing two different components together

An ultrasonic welding device for mounting wire ends or wire loops on terminal lugs, particularly on terminal lugs or lamellas of drum-shaped commutators for rotating electrical machines, the arrangement comprises a sonotrode, an anvil against which terminal lugs abut during a welding process, and supporting surfaces provided on the anvil and on a free end of each terminal lug for taking up a sonotrode pressure and sonotrode vibrations transverse to a pressure direction. The supporting surfaces abut against one another before a start of a welding process by a relative movement of the anvil and the terminal lugs.

Ultrasonic welding device

A collector segment comprising a connector lug having a contact surface, to which a wire winding loop of electric machine rotor is to be welded, and extending in a direction radially outward relative to a rotational axis of the electric machine rotor, and positioning surfaces which define a position of the wire winding loop in an extension direction of the connecting lug.

Collector segment

An arrangement for producing a connection between two structural parts for preventing any relative movement thereof, consists of a blind bore in the one part and a through bore in the other part, a pin being inserted in fitting manner into the blind bore and projecting into the through-hole. Since the diameter of the through-hole is larger than the diameter of the blind bore an annular space is obtained within the through-hole which is filled out by a sleeve which is deformable through application of ultrasonic waves.

Arrangement for connecting two structural parts

To prevent flowing of coating material on corrosion-protected sheet steel, such as a zinc coating, when making overlap weld seams, the end portion of at least one of the steel sheets is formed with openings which extend from adjacent the outer edge of the end portion inwardly, to leave projections between the openings, the projections being entirely within the overlap and leaving a short strip of solid material in the overlap region, so that the weld will occur at concentrated hot spots of the material, and contamination of the welding electrodes by the zinc coating material is prevented. The openings may extend clear to the edge in the form of notches, leaving intervening teeth, or they may be punched holes.

Corrosion-resistant sheet steel weld

Growing community of inventors

Sindelfingen, Germany

Arno Altpeter