Robert Boschgmbh

Reinhard Fassel

Hartmut Zoebl

Jurgen Wesemeyer

Herbert Klinger

Georg Haubner

Werner Hofmeister

Werner Meier

Peter Hergt

Lothar Haas

Hans Rauch

Hans-Joachim Raddant

Thomas Lott

Hartmut Zobl

Rolf Brautigam

Heinz-Dieter Hellmann

Robert Schleicher

Olaf Zinke

A holding device for a cable harness is designed in such a way that the cable harness, which is attached on one side to a printed circuit board, remains undamaged during transportation of the printed circuit board to a final assembly location. A plug connector attached to the printed circuit board has dome-shaped latching elements, and a unit plug attached to a free other end of the cable harness has corresponding counter latching elements as direct parts of the holding device. By snapping the counter latching elements onto the latching elements, the unit plug is attached to the plug connector, and the holding device for the cable harness is closed. At the final assembly location, the counter latching elements are nondestructively detached from the latching elements by pulling the unit plug off of the plug connector, and the holding device is reopened from the secured transport position for the cable harness. The holding device is preferably intended for use in the automobile industry.

Holding device for a cable harness

An electrical device has a printed-circuit board secured to a cover of the electrical-device housing, as well as a heat-dissipation mat arranged on a housing wall. The cover secured to the housing, as well as guideways of the housing, in which guideways the printed-circuit board is received, exert a tension force on the printed-circuit board, because of which electronic components arranged on the printed-circuit board, under conditions of intimate contact with the heat-dissipation mat, are embedded into the heat-dissipation mat. This is achieved by introducing the printed-circuit board in inclined position into the housing and, shortly before it reaches its final position, swivelling the printed-circuit board toward the wall of the housing having the heat-dissipation mat.

Electrical device having a printed-circuit board and method for

A valve block unit comprising a valve block and a valve block lid is proposed, which to facilitate installation and to protect electrical contact pins against bending or damage is equipped with an intermediate plate that has guide openings. In a dismounted state of the valve block and valve block lid, this intermediate plate protectively receives the contact pins. The intermediate plate is subject to the force of compression springs, which are compressed when the valve block and the valve block lid are brought together for installation. The contact pins then protrude from the protective intermediate plate and enter the contact bushes intended for them. This assures safe electrical connections, designed for ease of manufacture, within the valve block unit. The valve block unit is intended for use in motor vehicle brake pressure modulation systems.

Valve block unit

An arrangement for dissipating heat from power components assembled on a printed-circuit board dissipates heat generated in the power components to the side of the printed-circuit board that is removed from the components. The printed-circuit board may have heat-transfer bore holes, and a heat-conducting material applied in the area of the power components, the heat-transfer bore holes, and the side of the printed-circuit board facing away from the power components. The side of the printed-circuit board that is removed from the power components may be coated with an insulating enamel and with a flexible heat-conducting enamel.

Arrangement for dissipating heat from power components assembled on a

An electrical switching device has a housing composed of an electrically conductive material, at least one conductor plate having a region of an electrically conductive material and arranged in the housing, plug connection means extending from the housing in a sealed manner, and an element for electrically conductive connection of the conductor plate with the housing. The element for electrically conductive connection includes a mechanically prestressed spring element. The spring element has one end abutting against the conductor plate in the region of an electrically conductive material and another end fixedly connected with the housing.

Electrical switching device

Electric switching device

A commutator-type d-c motor has its line current connected through a sensing resistor (18) or transformer (18'), the pulses of which, upon energization, are counted in a counter (C) and also passed to a speed sensing circuit (S) in a control circuit (30), energization of the motor being disconnected if the frequency of undulations or waviness of the motor current drops, thus indicating that the positioned element, for example an antenna, window, or sliding roof of an automobile has reached a limiting position. The counter can be used to establish intermediate positions, upon suitable control by a selector switch (27) or a reference count number stage (C-Ref) controlled, for example, by a potentiometer (P) or from the selector switch (27). A timing circuit (T) prevents short-circuit through the motor upon manual sudden reversal of command of direction of rotation. The main switch can be coupled to a car radio to extend the car radio antenna upon energization thereof, retract the antenna upon de-energization, the selector switch also permitting manual retraction or projection, and disabling of the system if, for example, the radio is used for stored, e.g. tape reproduction.

Electric positioning motor control system, particularly automatic

To measure a wide range of flow rates, and particularly such low flow rates as 0.5 liters per hour, while being able to accurately also measure rates of about 100 liters per hour, fluid is introduced axially into a rotor (14, 36, 40) which has outlet openings (24, 36, 45) positioned at their circumference, the rotor being rotated by reaction on the rotor upon fluid flow from the outlet openings. The rotor operates within a fluid flow chamber (15) from which is conducted outwardly through a duct positioned thereabove. Inflow of fluid may be guided for linear flow by guide ribs (13). The rotor may be a hollow disk-like structure (FIGS. 1-3) with spiral guide vanes therebetween, or a T-shaped tubular structure (FIGS. 4-6). If fuel consumption of an internal combustion engine is to be measured in which pressurized fluid is supplied to the engine and excess returned, two such flow meters can be combined on a common shaft, with respectively oppositely facing outlet openings (36, 45), so that differential flow only is being measured, hence accurately measuring fuel consumption by the engine. Rotation of the rotor is sensed by an electro-optical sensor (29, 37).

Growing community of inventors

Oberasbach, Germany

Reinhard Fassel