Alusuisse Technology & Management Ltd.

Alcan Technology & Management Ltd.

Constellium Switzerland Ag

Werner Graf

Simon Frank

Uwe Bock

Karl Baumann

Stephan Bock

A heat sink for semiconductor components or similar devices, especially produced from an extruded aluminum alloy. The heat sink comprises cooling ribs which rise at a distance from a base plate and which are clamped in an insert groove made in the surface of the base plate, laterally limited by longitudinal or intermediate ribs with a coupling base that has an approximately rectangular cross-section. The coupling bases are held in their insert grooves in a form-fit and are cold-welded with the base plate at least in some sections. Cross ribs extend at a distance to one another on the surfaces of the intermediate ribs and have the form of upset heels that are linked with the coupling base in a form-fit.

Heat sink for semiconductor components or similar devices, method for producing the same and tool for carrying out said method

A heat sink of metal material, in particular a light metal alloy, for semi-conductor elements or similar components, has plate-like cooling ribs projecting from a base plate at intervals (f) and approximately parallel to each other, protrude with a connection strip into the base plate in which they are cast. A molding tool designed for production of the heat sink includes a casting mold with a mold chamber for the base plate. The mold chamber contains an area to receive the connection strips of the cooling ribs. Two parallel side walls of the casting mold and intermediate layers arranged parallel between them, each defining a receiver gap, are arranged displaceably on at least one shaft passing through them. The walls can be moved to produce the compact casting mold after insertion of the cooling ribs in the receiver gaps.

Heat sink and process and molding tool for production of same

A vehicle features a bumper which runs transverse to the longitudinal direction of the vehicle and which is attached to the vehicle by at least one deforming element. The deforming element is essentially in the form of a tube-shaped length of section of light weight metal having its longitudinal axis lying in the longitudinal direction of the vehicle and is divided into longitudinal chambers by inner struts.

Vehicle with bumper and deforming element

A bumper for vehicles, in particular for private cars, features an extruded section of light metal alloy that can be attached to the vehicle and exhibits in the form of section walls (12, 14) a compression wall (12) and a tension wall (14) that are spaced a distance (1) apart and a pair of transverse walls (16,18) that join these to form a hollow section, where at least one transverse strut (20, 22, 24) is provided between the transverse walls (16,18), joins these walls (12, 14) to each other and divides the hollow section into chambers. A vertical strut (26) is provided between the section walls (12, 14) joining the both transverse walls (16, 18) to each other and dividing the hollow section into a primary deformation part (A) with the chambers (30) bordering onto the compression wall (12) and a secondary deformation part (B) with chambers (32) bordering onto the tension wall (14).

Bumper for vehicles

A bumper with brackets attached for mounting it onto a vehicle, in particular a private car, is such that, at least in the region of the brackets, the bumper is bowed with respect to the front line of the vehicle, and features section walls a distance apart in the form of a compression wall and a tension wall and a pair of transverse walls joining them making up a hollow section. The brackets feature a wedge-shaped support, the sloping face of which lies against the tension wall and is connected to this in region at the highest point of the sloping face.

Bumper with brackets for mounting it onto a vehicle

Play-free longitudinal guiding means having rails than run inside each other, namely a lower rail and an upper rail that can be displaced in a sliding manner with respect to the lower rail, for securing seats in vehicles such as private cars. The play-free longitudinal guiding means is such that the lower rail features along its length wall parts that have the shape of alignment grooves, and the upper rail features wall parts which run parallel to the wall parts of the lower rail and are shaped into an alignment groove, and the alignment grooves of the upper and lower rails face each other and form a sliding alignment channel. In the sliding channel there are sliding elements which in the free-standing condition exhibit a larger cross-section than in the installed condition, and the sliding elements guide the lower and upper rails without any play.

Growing community of inventors

Engen, Germany

Werner Graf