摘要:
In a power supply with n interlaced conversion cells, a control device activates m paths out of n paths, 1≦m≦n, as a function of the power or of the current handled by the power supply. The cell may have a boost, buck, buck/boost, Cuk, or SEPIC topology.
摘要:
A method for attaching a proximity probe offset to an axis defining an extension cable. The method includes a sensing element; a cylindrical part molded with a moldable material; a recess configured in one of two opposing ends defining the cylindrical part to receive the sensing element; a first and a second ferrule each extending from opposing surfaces defining an exterior of the cylindrical part, a first axis defining the first and second ferrules being offset from a second axis defining the cylindrical part; and an extension cable operably attached to the sensing element via the first and second ferrules, the sensing element being disposed offset relative to the extension cable.
摘要:
The invention relates to a bipolar plate for a fuel cell, of the type that comprises a cathode bipolar half plate and an anode bipolar half plate which are placed next to one another. Each bipolar half plate (1) consists of a plate, the central part of which comprises an active zone (2), while the periphery thereof comprises a plurality of cut-outs (4) which are intended to form at least two oxidant tanks, at least two fuel tanks and at least two coolant tanks. Moreover, at least one bipolar half plate comprises at least one connecting rib (8) between a peripheral cut-out and the active zone. The invention is characterised in that each cut-out (4) that is intended to form a coolant tank is surrounded by a tank-sealing rib (7) which projects out from the outer face of the bipolar half plate. The invention is also characterised in that the periphery of each bipolar half plate comprises a rib (15) for sealing the active zone, which projects out from the outer face of the bipolar half plate, such as to connect the coolant tank sealing ribs (7) in a continuous manner and to surround the oxidant and fuel tanks. Furthermore, each channel formed by a rib segment (15A) between two coolant tanks is blocked by a blocking means (17).
摘要:
The invention concerns a device produced in the form of an assembly which can be integrated in any installation (13) for radioscopy of the product and comprising means for driving the product (5) in rotation about an axis (5a) perpendicular to the tomographic section plane to be obtained, a unit controlling (15, 16) the means (14) driving the product (5) in rotation, to drive the product (5) in rotation about the axis (5a) and an image acquisition and processing unit (16) including means for automatically acquiring and storing radioscopy images of the product (5) while the product (5) is rotating, in digital form, and calculating means for processing the digital images and constructing tomographic sections using a calculating algorithm. The device enables fault controls or geometrical and dimensional controls in mechanical parts for the automotive industry such as cylinder heads.
摘要:
Device for fixing a watchband to a watch container includes a hinge connected to the watch container with two pivots sliding therein and a fixing element fixed to or integrated into the end of the watchband provided with two brackets defining a space therebetween for arranging the hinge. Each bracket has an axial recess protruding in the space between the brackets. The axial recess is extended in a direction of the external side faces of the brackets through an orifice containing an end stone mounted such that it is slidable in the recess and exposed to the action of a second return spring which pushes a press button fixed to the external ends of the end stone towards outside. The hinge is provided on the side faces thereof with an annular chamber having a slot which defines a privileged direction.
摘要:
The invention relates to an integrated sensor, including terminals (1, 2) for connection to an electric generator, said terminals being connected to a metal measuring line (4, 5) in which a current proportional to the voltage or current of the generator to be measured flows, and magnetoresistors (31, 32, 33, 34). The metal measuring line includes elongate and parallel sections (4, 5) in which the current flows in opposite directions, said sections being connected to a portion (3) for closing the metal measuring line (3, 4, 5), which is arranged on a galvanic isolation layer (8) that is in turn arranged on an integrated circuit portion including the magnetoresistors (31, 32, 33, 34), each of which have a sensitive portion that is vertically adjacent to one of the elongate sections (4, 5). The sensor can be integrated into a diagnostic system.
摘要:
The invention relates to a housing, including: electronic components (42); walls (44) mechanically insulating said electronic components from the outside; at least one electric connection pad (18, 20, 22, 24) arranged on an outer surface of one of said walls so as to be electrically coupled to a cable outside the housing, said connection pad being electrically coupled to the electronic components (42) inside the housing, characterised in that the connection pad includes: a printed circuit board (50) defining a portion of the housing wall (44) and having a surface exposed to the outside of the housing; and an electric connection outer plane (60, 62) engraved on said surface for directly contacting the outer cable, said plane being electrically coupled to the electronic components.
摘要:
The invention relates to a fluid delivery head for an electrochemical cell, for example a fuel cell. The delivery head combines the inlets and outlets of the lines for delivering the fluids, notably hydrogen and oxygen. The hydrogen delivery line feeds an active part of the fuel cell and includes a cavity in communication with a discharge pipe via a solenoid valve. The invention performs several functions with a minimum of elements and with reduced bulk.
摘要:
The invention relates to a fuel cell bipolar plate (22) comprising at least one ridge (47, 23a, 33a, 40a, 27a, 35a, 41a, 23a) on at least one of the faces (51) thereof, such as seal at least one fluid circuit in the cell from among the oxidant, fuel and coolant inlet circuits and the oxidant, fuel and coolant outlet circuits, said circuits being formed by stacking openings which are provided in the plate (22) and which form an inlet and an outlet for the oxidant and the fuel (33, 40, 35, 41) respectively and openings which form an inlet and an outlet for the coolant (23, 27) respectively during the assembly of the constituent cells (1) of the fuel cell.
摘要:
Device for fixing a watchband to a watch container includes a hinge connected to the watch container with two pivots sliding therein and a fixing element fixed to or integrated into the end of the watchband provided with two brackets defining a space therebetween for arranging the hinge. Each bracket has an axial recess protruding in the space between the brackets. The axial recess is extended in a direction of the external side faces of the brackets through an orifice containing an end stone mounted such that it is slidable in the recess and exposed to the action of a second return spring which pushes a press button fixed to the external ends of the end stone towards outside. The hinge is provided on the side faces thereof with an annular chamber having a slot which defines a privileged direction.