Abstract: A battery holder (10) includes a support plate having at least two adjacent through-holes (2a, 2b; 4a, 4b; 6a, 6b; 8a, 8b), each hole being capable of receiving, in the case of one hole, the end including the terminal (14a) of a first battery (12) and, in the case of the other hole, the end including the terminal (14b) of a second battery (12), together with a connection element (4, 40) coming into contact with the terminals of the batteries, which it connects electrically. The plate comprises two portions (10a, 10b) forming a movable assembly so as to change from an unfolded position in which the two portions (10a, 10b) are positioned side by side in the same plane, to a folded position in which the two portions are positioned one on top of the other, the connection element (4, 40) connecting the terminals (14a, 14b) in both positions.

Abstract: A manufacturing chamber for an additive manufacturing machine comprises in an enclosure: a working plane; a manufacturing platform for the deposition of the layers of additive manufacturing material and for supporting the part being manufactured; and a circuit for circulating an inert gas flow over the manufacturing platform, characterized in that the enclosure and/or the working plane comprises an inlet opening for the gas flow, in that the working plane comprises an upstream ramp, connected to the area of the working plane where the manufacturing platform is located by a surface having a rounded convex profile, and in that the surface with a rounded convex profile is configured for attaching the gas flow, by the Coanda effect, above the working plane.

Abstract: A method for producing a heat pipe comprises the following steps, performed on a first tube made from a malleable material: the diameter of the tube is swaged at a first end, and the end thus swaged is sealed closed; a second tube, of a smaller diameter than the first, is inserted into the second end of the first tube the second end of the first tube is swaged around the second tube and the interface between the two tubes is sealed the pipe thus created is partially filled with a heat-transfer fluid the air contained in the pipe is removed; and the free end of the second tube is sealed closed.

Abstract: A method for producing a heat pipe comprises the following steps, performed on a first tube made from a malleable material: the diameter of the tube is swaged at a first end, and the end thus swaged is sealed closed; a second tube, of a smaller diameter than the first, is inserted into the second end of the first tube the second end of the first tube is swaged around the second tube and the interface between the two tubes is sealed the pipe thus created is partially filled with a heat-transfer fluid the air contained in the pipe is removed; and the free end of the second tube is sealed closed.

Abstract: A battery pack includes a battery module having a set of battery cells and at least one cooling device. Each cooling device includes a heat collecting plate, a heat duct, and a heat dissipating element. The heat collecting plate is in contact with an outer surface of at least one battery cell of the set of battery cells. The heat duct is in contact with the heat collecting plate. The heat dissipating element has a circular orifice in which the heat duct is positioned. The heat duct contains a fluid. A connection between the heat dissipating element and the heat duct is established by tinning. A method for producing the battery pack is provided.

Abstract: A battery pack includes a battery module having a set of battery cells and at least one cooling device. Each cooling device includes a heat collecting plate, a heat duct, and a heat dissipating element. The heat collecting plate is in contact with an outer surface of at least one battery cell of the set of battery cells. The heat duct is in contact with the heat collecting plate. The heat dissipating element has a circular orifice in which the heat duct is positioned. The heat duct contains a fluid. A connection between the heat dissipating element and the heat duct is established by tinning. A method for producing the battery pack is provided.

Abstract: An electric vehicle drive assembly includes an electric motor mounted to engage with a wheel of a vehicle. The electric motor includes a rotor and a magnetic assembly. The rotor is rotatably mounted in a stator through interposition of rolling bearings. The magnetic assembly is designed to rotationally drive the rotor. The rotor is provided with a heat pipe having at least one condensation zone, which is arranged to condense a heat-transfer liquid, and at least one evaporation zone, which is arranged to evaporate the heat-transfer liquid. The wheel includes a driven shaft, which is structured to collaborate with the rotor. The heat pipe extends axially from the rotor into the driven shaft.

Abstract: An electric vehicle drive assembly includes an electric motor mounted to engage with a wheel of a vehicle. The electric motor includes a rotor and a magnetic assembly. The rotor is rotatably mounted in a stator through interposition of an internal rolling bearing, which is positioned near the wheel, and an external rolling bearing, which is positioned at some distance from the wheel. The magnetic assembly is designed to rotationally drive the rotor. The rotor is provided with a heat pipe having at least one condensation zone, for condensing a heat-transfer liquid, and at least one evaporation zone, for evaporating the heat-transfer liquid. The evaporation zone is arranged to extend axially inside the internal rolling bearing.

Abstract: A metal tank (1) for storing fluid under high pressure, comprising, along its axis (2), a plurality of adjacent compartments (10, 71, 91) separated by partitions (3), each compartment having a cylindrical wall (72), a transition zone (73) connecting each partition to the cylindrical wall, the compartments communicating with one another via at least one orifice (6) made in each partition, in which, for a given compartment, the cylindrical wall is connected via an annular weld (75) to the transition zone of the adjacent compartment.