figure 1 A motor vehicle 1 including a carriage 2 is schematically shown, and a support 3 for fixing an electronic box 4 and a heat shield 5 is fixed on the carriage, and the support 3 is installed under the vehicle 1.
 More specifically, the carriage 2 includes a longitudinal beam 6 extending substantially along the normal direction of movement of the vehicle 1 and a cross beam 7 substantially perpendicular to the longitudinal beam 6, and the longitudinal beam 6 and the cross beam 7 form a plane 8 of the carriage 2.
 Relative to the support 3, an orthogonal coordinate system XYZ including three mutually perpendicular axes is defined, namely:
 -X axis, which defines the longitudinal and horizontal directions, coincides with the normal direction in which the support 3 extends,
 -Y axis, which defines horizontal and horizontal reverse, and X axis defines horizontal plane XY,
 The Z axis, which defines the vertical direction, is perpendicular to the horizontal plane XY.
 in image 3 Particularly visible support members include a central part 9, a first end 10 fixed to the beam 7 and fixed with a heat shield 5, and a second end fixed to the longitudinal beam 6 and also fixed with the heat shield 5 11.
 The central portion 9 defining the general direction in which the support 3 elongates is flat and substantially rectangular. The central portion 9 includes an upper surface 12 on which an electronic box 4 is fixed.
 Advantageously, the first end 10 and the second end 11 are substantially planar and parallel to the central part 9 and extend on both sides of the central part 9.
 As in image 3 As shown, the two end portions 10 and 11 are misaligned with respect to the central portion 9 along the Z axis, and the end portions 10 and 11 are connected to the central portion 9 by an inclined portion 13.
 In order to allow the support 3 to be fixed on the vehicle 1 on the one hand, and on the other hand to allow the electronic box 4, heat shield 5 and external elements to be fixed on the support 3, the support 3 includes a central part 9 and an end 10 formed ,11 of the feet 14,15,16,17,18,19. Through external components, one can see the electron tube bundle 20 of the vehicle 1, the cable 21 connecting the electronic box 4 and the on-board computer (not shown), or the hydrocarbon fuel rubber tube 22 connecting the hydrocarbon fuel tank to the heat engine.
 Advantageously, the support 3 comprises six feet 14, 15, 16, 17, 18, 19, each of which is allocated in pairs on each part 9, 10, 11 in the manner described below. , 17, 18, 19 includes webs 14A, 15A, 16A, 17A, 18A, 19A and bottom plates 14B, 15B, 16B, 17B, 18B, 19B, each bottom plate is opposite to the web 14A, 15A, 16A, 17A, 18A , 19A is bent and separated from its parts 9, 10, 11 by its webs 14A, 15A, 16A, 17A, 18A, 19A.
 In order to simplify the reading and understanding of the description, the webs 14A, 15A, 16A, 17A, 18A, 19A and bottom plates 14B, 15B, 16B, 17B, 18B of each foot 14, 15, 16, 17, 18, 19 19B will reuse the adjectives belonging to each foot, so that, for example, the first foot 14 includes a first web 14A and a first bottom plate 14B, and the fifth leg 18 includes a fifth web 18A and a fifth bottom plate 18B.
 The first end 10 includes a first leg 14 and a second leg 15. The first leg 14 forms a protrusion of the first end 10 substantially along the Z axis, and the first web 14B is substantially parallel to the first end 10. The second leg 15 also forms a protrusion of the first end 10 in the direction opposite to the first leg 14 near the junction between the inclined portion 13 and the first end 10, and the second bottom plate 15B is substantially parallel to the first Floor 14B.
 Preferably, the first leg 14 extends at a certain height so that the first floor 14B comes into contact with the cross beam 7 of the car 2 at a distance d measured between the upper surface 12 of the central portion 9 and the plane 8 of the car 2, which is strictly greater than The thickness of the electronic box 4 e.
 Advantageously, the second leg 15 has a height h, so that the heat shield 5 is separated from the support 3 so that the heat shield 5 does not collide with the support 3 if the vehicle 1 is subjected to a shock or impact.
 The central part 9 includes a third leg 16 and a fourth leg 17. The third leg 16 extends from the first edge 23 of the central portion 9 along the Z axis, and the fourth leg 17 extends from the second edge 24 of the central portion 9 in the opposite direction.
 Finally, the second end 11 includes a fifth leg 18 and a sixth leg 19. The fifth leg 18 extends from the first edge 25 along the Z axis, and the sixth leg 19 extends from the second edge 26 in the opposite direction near the junction between the inclined portion 13 and the second end 11.
 Advantageously, the support 3 is made by bending a metal material plate such as aluminum alloy, which allows simple manufacturing, good mechanical strength and light weight.
 In order to ensure good mechanical strength of the support 3 and maintain the bending shape of the support 3, between the legs 14,15,16,17,18,19 and parts 9,10,11 or different parts 9,10,11 themselves A hardened flange 27 is formed on the crease between.
 In order to lighten the support 3 and reduce the amount of material required to manufacture it, the second web 15A of the second leg 15 is equipped with a hollow part 28. Other hollow parts not shown can be implemented on other legs 14, 16, 17, 18, 19, on the central part 9, on the first end 10, or on the second end 11.
 As in figure 2 with image 3 It can be seen that the support 3 is equipped with drill holes 29, holes 30 and openings 31 capable of receiving clamps 32, screws 33 or rivets 34.
 More specifically, the opening 31 is elongated and can receive the clamp 32, and the bore 29 is tapped for screwing the screw 33, and is implemented on the first bottom plate 14B of the first leg 14 and at the second end The hole 30 on the portion 11 can receive a rivet 34.
 When the support 3 is installed on the vehicle 1, the first floor 14B and the second end 11 are in contact with the cross beam 7 and the longitudinal beam 6 of the car 2 through the rivets 34, so that the support 3 is substantially parallel to the plane of the car 2 8.
 The electronic box 4, heat shield 5 and external components are fixed on the support 3 in the following manner:
 -The electronic box 4 is fixed on the upper surface 12 of the central part 9 by screws 33 screwed into the bores 29 of the central part 9;
 -The heat shield 5 is fixed on the second end 11 and the second bottom plate 15B of the second leg 15 by the rivets 34 in the holes 30.
 -The electron tube bundle 20, the cable 21 and the hydrocarbon fuel rubber tube 22 of the vehicle 1 are fixed to the support 3, the feet 14, 15, 16, 17, 18, 19 and different through the hole 30 or the clamp 32 in the opening 31 Part 9, 10, 11 on.
 Advantageously, the opening 31 is elongated to allow the fixation of the adjusting clamp 32 on the support 3 so as to prevent the electron tube bundle 20, the cable 21 and the hydrocarbon fuel rubber tube 22 of the vehicle 1 from having a very curved path.
 According to the embodiment shown in the figure, two consecutive clamps 32 fixing the same external element are separated by a distance between 200mm and 300mm, and preferably by a distance between 175mm and 250mm. Therefore, the two consecutive holes 30 and/or the opening 31 of the consecutive two jigs 32 for fixing the same external element are separated by a distance between 200 mm and 300 mm.
 The described support 3 has a number of advantages.
 First, the support 3 allows fixing the electronic box 4, the heat shield 5, and external components such as the electronic tube bundle 20 of the vehicle 1, the cable 21 of the electronic box 4, or the hydrocarbon fuel rubber tube 22. Therefore, the number of holes implemented in the compartment 2 of the vehicle 1 can be limited to fix external elements other than the electronic box 4 and the heat shield 5. Therefore, the assembly and manufacture of the vehicle 1 are simplified and performed more quickly.
 In addition, the support 3 allows maintaining a constant interval between the electronic box 4 and the plane 8 of the compartment 2 on the one hand, and allows maintaining a constant interval between the support 3 and the heat shield 5 on the other hand. Therefore, the electronic box 4 and the heat shield 5 are protected from vibrations and impacts against the carriage 2 or the support 3, thereby increasing the service life of the electronic box and the heat shield.
 In addition, the support 3 is simple to manufacture and low in cost. In fact, the support 3 is made by bending, which allows it to be realized by, for example, stamping or molding. These manufacturing methods can be completely automated.
 Finally, the support 3 is light and easy to install on the vehicle 1. The material constituting the support 3 allows to ensure lightness and therefore the operation of the support 3, and the installation of the support 3 on the vehicle 1 is achieved by using rivets 34 that are simple and quick to implement.