Housing and electronic power device

Abstract

The invention relates to a housing (10) for an electronic power device (1) of an electric powertrain, such as for an inverter, the housing (1) comprising a body (13) comprising a bottom (11) and a set of peripheral walls (12) defining together with the bottom a recess (15) capable of receiving components (20) of the electronic power device, and a cover (14) covering the recess (15) when the housing (10) is closed, and wherein the housing comprises at least one support element arranged to deform the cover when the housing (10) is closed.

Description

Technical Field

[0001] The present invention generally relates to the technical field of electronic power devices for electric powertrains, for example for motor vehicles. More specifically, although not exclusively, the present invention relates to a voltage inverter housing. Background Art

[0002] The increasing use of motor vehicles with electric motors as an alternative or supplement to internal combustion engines requires the use of an increasing number of electronic components. In particular, the use of inverters has proven to be necessary for electric vehicles using batteries. In fact, electric motors used in electric or hybrid vehicles generally include synchronous or asynchronous electromechanical converters, the operation of which generally requires the use of three-phase alternating current. However, the batteries of these vehicles provide direct current, so it must be converted into alternating current. An inverter located near the electric motor in the electric powertrain is particularly capable of converting direct current into alternating current.

[0003] Since the inverter consists of vulnerable sub-components and is not suitable for the external conditions of the motor vehicle motor, these components are usually protected by a housing accommodated in a dedicated position within the powertrain. Such a housing generally includes a rigid body on which a cover is superimposed to isolate the electronic components located within its internal space.

[0004] When an electric or hybrid vehicle is operating, vibrations emitted, for example, by the reduction gear of the vehicle or electromagnetic forces acting within the electric motor of the powertrain are transmitted to the housing, and then the cover may vibrate like a loudspeaker. The vibration causes a noise nuisance in the environment near the vehicle or for the users in the passenger compartment of the vehicle.

[0005] To solve this problem, it is known to separate the body and the cover of the housing by inserting an elastic material between the body and the cover of the housing. For example, such a solution is described in document JP2020169572.

[0006] This solution reduces the resonance frequency of the cover, but the resonance frequency in the inverter housing of the electric powertrain is still too high, and the vibration of the cover is still annoying.

[0007] It is also known to place support elements inside the housing for supporting the cover. Such a solution described, for example, in document US2020 / 0413556 increases the modal frequency of the cover, thus reducing the vibration, but connection devices need to be implemented between the cover and the support elements to prevent any relative axial movement between the cover and the support elements.

[0008] Therefore, this solution is not entirely satisfactory. Summary of the Invention

[0009] The present invention aims to overcome all or part of the drawbacks of the prior art by proposing a simple solution that prevents vibration amplification by reducing the emissivity of the cover of the housing of an electronic power device, such as an inverter housing.

[0010] To this end, a housing for an electronic power device of an electric powertrain, such as a housing for an inverter, is proposed, the housing comprising:

[0011] a body including a bottom and a set of peripheral walls that, together with the bottom, define a recess capable of receiving components of the electronic power device,

[0012] a cover that covers the recess when the housing is closed.

[0013] According to a first aspect of the invention, the housing includes at least one bearing element, the at least one bearing element being arranged to deform the cover when the housing is closed.

[0014] Thus, compared to the solutions of the known prior art, the modal frequency of the cover can be increased without using fastening devices between the bearing element and the cover, since the deformation of the cover, such as bending, ensures that the bearing element and the cover remain in contact. Thus, the solution is simpler.

[0015] "Deformation" means changing the shape of the cover between a rest state and a "positioned" state, the rest state being, for example, when the cover is removed from the body, and the positioned state being when the cover completely covers the recess. The shape change can be, for example, bending or curving of the cover, or any other geometric change of the cover surface.

[0016] The invention may also include one or more of the following features:

[0017] Each bearing element extends between the body and the cover.

[0018] Each bearing element is carried by the cover or the body and extends until the other of the cover and the body when the housing is closed, so as to deform the cover.

[0019] The cover cooperates with the set of peripheral walls to close the housing.

[0020] The cover is removably or non-removably connected to the set of peripheral walls.

[0021] When the housing is closed, fastening elements such as injection screws or rivets hold the cover on the housing body.

[0022] When the housing is closed, the cover (especially its peripheral edge) is pressed against the set of peripheral walls (especially the edge surfaces of the set of peripheral walls opposite the bottom).

[0023] This set of peripheral walls defines an opening opposite to the bottom, which is closed by a lid when the housing is closed.

[0024] The dimensions of each support element are set to ensure that the deformation of the lid is necessary for closing the housing.

[0025] The support element or each support element includes a support portion that cooperates with the pushing area of the lid to deform it.

[0026] Each support element includes a support portion that cooperates with the lid to deform it. The dimensions of each support element are set to ensure permanent or uninterrupted contact between the lid and the support portion of the support element, regardless of the excitation frequency of the lid.

[0027] Advantageously, a prestress is applied to the lid by the (multiple) support elements. The dimensions of each support element are set to ensure that the resulting deformation is strictly greater than the vibration displacement of the lid without the support elements.

[0028] For example, the displacement of the lid under the pressure of the support elements may be one to two times greater than the vibration displacement of the lid without the support elements, such as 1.2 or 1.4 times greater.

[0029] The support elements are processed before the housing is closed. Preferably, the support elements are already associated with the body when being processed.

[0030] The processing step allows the dimensions of the support elements to be adapted to different vibration frequencies to be processed.

[0031] Each support element is compression-loaded between the lid and the body. In other words, the elastic deformation of the lid generates an elastic restoring force that presses the lid against the support element and / or presses the support element against the body.

[0032] According to another embodiment, each support element is tension-loaded between the lid and the body. In other words, the elastic deformation of the lid generates a restoring force that pulls the support element away from the body.

[0033] The support element or each support element includes a strut. One end of the strut is connected to the bottom of the body, and the other end forms a fork-shaped member including at least two branches. When the housing is closed, the ends of the branches contact the lid.

[0034] The said or each support portion is pointed.

[0035] The said or each support portion is linear.

[0036] The support portion or each support portion is surfacic.

[0037] The support element is rod-shaped or bar-shaped, and the support portion between the support element and the lid is pointed.

[0038] The support element is plate-shaped, and its two opposite sides are in contact with the body and the cover. The support portion between the support element and the cover is linear.

[0039] The support element is solid or prismatic, and the support portion between the support element and the cover is surface-like.

[0040] Before the housing is closed, each support element is integral with the body, and when the housing is closed, the support element extends up to the cover.

[0041] Before the housing is closed, each support element is integral with the cover, and when the housing is closed, the support element extends up to the body.

[0042] Each support element is carried by the body and extends up to the cover when the housing is closed.

[0043] According to one embodiment, each support element forms an integral part with the body (especially the bottom).

[0044] Each support element extends from the bottom of the body to the cover.

[0045] The support element is an element that protrudes from the bottom of the body of the housing. For example, the support element is a rod, a shaft or a plate.

[0046] Each support element extends substantially perpendicular to the bottom of the body.

[0047] According to one embodiment, the housing includes at least two support elements connecting the body and the cover.

[0048] According to one embodiment, the housing includes the same number of support elements as the number of vibration antinodes of the cover in the absence of support elements.

[0049] According to another embodiment, when the housing is closed, each support element extends from a wall in a set of peripheral walls of the body to the cover.

[0050] Preferably, each support portion is positioned such that, on at least one straight line passing through the inertial center of the cover and the point of the support portion, the point of the support portion is closer to the inertial center of the cover than to the nearest edge of the cover. This arrangement enables at least the most common first vibration mode to be addressed.

[0051] Each support portion is positioned such that, on all straight lines passing through the inertial center of the cover and the point of the support portion, the point of the support portion is closer to the inertial center of the cover than to the nearest edge of the cover.

[0052] The cover has a portion in the form of a flexible plate.

[0053] According to one embodiment, the cover is substantially in the form of a flexible plate.

[0054] According to one embodiment, each support element extends between the flexible plate and the body.

[0055] According to one embodiment, the lid can be bent or arched towards the bottom.

[0056] According to a variant, the lid can be bent or arched away from the bottom.

[0057] According to one embodiment, each support element is a finger formed in the lid, which extends to the body of the housing, for example to the bottom of the body. In other words, the support element can also be formed in the lid. Where appropriate, the support element forms part of the lid. In other words, the support element also performs the function of closing the recess and / or the sealing function.

[0058] Advantageously, the finger is hollow and the internal volume of the finger communicates with the outside of the housing.

[0059] According to one embodiment, the lid is made of sheet metal and the fingers are formed directly in the sheet metal of the lid.

[0060] The finger can have a frustoconical shape extending to the bottom of the body.

[0061] According to one embodiment, the support element is removable.

[0062] According to one embodiment, the distance between the bottom of the body and the support portion can be adjusted before or after the housing is closed.

[0063] According to one embodiment, the end or bottom of the support element includes an external thread, and the other of the end and bottom of the support element includes an internal thread, and the external thread cooperates with the internal thread. This makes it possible to adjust the deformation of the lid and thus change its natural frequency.

[0064] According to one embodiment, the support element is formed on a component separate from the body and the lid and can be inserted after the lid is positioned on the body.

[0065] Where appropriate, the lid has a hole through which the support element passes, one end of the support element is integral with the bottom, and the opposite end of the support element includes a head wider than the hole, and the support portion is located at the docking portion between the head and the lid.

[0066] According to one embodiment, the lid includes a raised portion that cooperates with the support element.

[0067] According to one embodiment, the lid is made of sheet metal and the raised portion is in the form of a chicane formed directly in the sheet metal of the lid.

[0068] According to another embodiment, the lid can be made of a thermoplastic material, in particular by molding.

[0069] The present invention also relates to an electronic power device, such as an inverter, comprising the above-mentioned housing.

[0070] According to one embodiment, the electronic power device comprises a circuit board on which electronic components are mounted, the circuit board comprising at least one opening, each opening being passed through by a corresponding support element.

[0071] According to one embodiment, each support element is arranged in a recess before the housing is closed. This makes it simpler to provide a sealed housing.

[0072] According to another aspect, the present invention also relates to a powertrain comprising the housing or the electronic power device as described above.

[0073] According to another aspect, the present invention also relates to a method of manufacturing the above-mentioned housing, the method comprising the step of machining or cutting the support element.

[0074] According to one embodiment, the support element is carried by a body and, once the support element is connected to the body, the cutting or machining step is carried out. Thus, the deformation of the cover can be determined more precisely (irrespective of assembly tolerances).

[0075] The following description of non-limiting exemplary embodiments of aspects of the present invention reveals other features and advantages of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0076] With reference to the accompanying drawings, other features and advantages of the present invention will become apparent from reading the following description, in which:

[0077] Figure 1 : Schematic diagram of a known electronic power device,

[0078] Figure 2 : Schematic diagram of a first embodiment of the present invention,

[0079] Figure 3 : Schematic diagram of the body of the housing of the first embodiment of the present invention as viewed from above according to a first variant,

[0080] Figure 4 : Schematic diagram of the body of the housing of the first embodiment of the present invention as viewed from above according to a second variant,

[0081] Figure 5 : Schematic diagram of a second embodiment of the present invention,

[0082] Figure 6 : Schematic diagram of the body of the second embodiment of the present invention as viewed from above,

[0083] Figure 7 : Schematic diagram of a third embodiment of the present invention,

[0084] Figure 8 : Schematic diagram of the fourth embodiment of the present invention

[0085] Figure 9 : Top view schematic diagram of the third and fourth embodiments according to the first variant

[0086] Figure 10 : Top view schematic diagram of the third and fourth embodiments according to the second variant

[0087] Figure 11 : Top view schematic diagram of the third and fourth embodiments according to the third variant

[0088] Figure 12 : Schematic diagram of the fifth embodiment of the present invention

[0089] Figure 13 : Schematic diagram of the sixth embodiment of the present invention

[0090] Figure 14 : Schematic diagram of the seventh embodiment of the present invention

[0091] Figure 15 : Schematic diagram of the eighth embodiment of the present invention

[0092] Figure 16 : Schematic diagram of the ninth embodiment of the present invention

[0093] For clarity, in all the drawings, elements that are the same, similar, or have the same function are identified by the same reference signs. In the specification and the foregoing, the expression "each support element" equivalently refers to embodiments having a single support element or several support elements, such as two, three, or four support elements Detailed Description

[0094] Figure 1 Schematically shows the housing 10 of an inverter in the prior art. The housing 10 includes:

[0095] Bottom 11

[0096] A set of peripheral walls 12, which together with the bottom define a recess 15, and the electronic components 20 of the inverter are accommodated in the recess 15

[0097] Cover 14 covering the recess 15

[0098] Under normal circumstances, vibrations related to the transmission device, electromagnetic force, and operation of the inverter are transmitted to the housing 10 of the inverter. The cover 14 of the housing 10 of the inverter has a non-negligible surface area, and thus can act like a speaker to diffuse noise, as Figure 1 Schematically shown. The amplitude H of the vibration can be between 0.1 mm and 0.6 mm, or even larger

[0099] Figures 2 to 16 Schematically shows various embodiments of the present invention. In each case, the housing 10 of the inverter 1 may have an overall parallelepiped shape, it being understood that it may have any other geometric shape. This set of peripheral walls 12 defines an opening opposite the bottom 11, which opening is closed by the cover 14 when the housing 10 is closed.

[0100] In view of the nature of the electronic power device and in order to protect it from any residual dust, the housing is preferably sealed.

[0101] The cover 14 preferably cooperates with this set of peripheral walls 12 to close the housing. Although this is not shown in Figures 2 to 16 it, the cover may be connected to this set of peripheral walls in a non-removable manner (e.g., by rivets or welding) or in a removable manner (e.g., by screws).

[0102] The cover 14 has at least one part in the form of a flexible plate. When the support element 25 is associated with the body 13 before the housing is closed, the cover 14 as a whole may be in the form of a flexible plate. It is worth noting that the flexible plate may be made of sheet metal or plastic or polymer.

[0103] In Figures 2 to 14 the embodiment shown, each support element is loaded in compression between the cover and the body. In other words, the elastic deformation of the cover produces a restoring force that presses the support element against the body. The cover is curved (or bent) towards the outside of the housing.

[0104] In Figures 1 to 12 the embodiment shown, before the housing is closed, the support element is integral with the body 13, and when the housing is closed, the support element extends to the cover 14. It is worth noting that each support element 25 may be formed as a one-piece part with the body 13. Each support element 25 is loaded in compression between the cover 14 and the body 13.

[0105] In Figures 13 to 15 the embodiment shown, before the housing is closed, the support element is integral with the cover, and when the housing is closed, the support element extends to the body 13, in particular the bottom 11. Where appropriate, the body 13 may be made of steel, plastic or polymer using a metal insert.

[0106] Figure 2 Schematic view of a first embodiment of the housing 10 for an electronic power device 1 (e.g., an inverter) for an electric powertrain.

[0107] The housing includes:

[0108] A body 13, which includes a bottom 11 and a set of peripheral walls 12. The set of peripheral walls 12 and the bottom together define a recess 15 capable of receiving a component 20 of an electronic power device.

[0109] A cover 14 that covers the recess 15 when the housing 10 is closed.

[0110] The housing includes a support element 25 extending between the body 13 and the cover 14. The arrangement and dimensions of the support element are such that the cover 14 deforms when the housing 10 is closed. This significantly reduces or even eliminates the amplitude h of vibration.

[0111] In this first embodiment, the support element 25 is carried by the body 13. Once the housing 10 is closed, it extends to the cover and deforms it. The support element 25 extends substantially perpendicular to the bottom 11 of the body 13. The support element thus deforms the flexible plate of the cover 14.

[0112] When the housing 10 is closed, the peripheral edge of the cover 14 presses against the set of peripheral walls 12, especially against the edge surface of the set of peripheral walls opposite to the bottom 11.

[0113] The dimensions of the support element 25 are set such that the deformation of the cover 14 is necessary for sealingly closing the housing. In other words, the dimensions of the support element are such that it is impossible to close the housing without bringing the cover into contact with the support element by bending the cover.

[0114] For example, the maximum displacement (or deflection) f of the cover can be between 0.05 mm and 1 mm, especially between 0.1 mm and 0.5 mm.

[0115] The support element 25 can be formed as a one-piece part with the body 13 of the housing (especially the bottom). In appropriate cases, the body can be made of machined steel or any other material capable of withstanding the forces transmitted by the support element.

[0116] According to a variant, the support element 25 can be made of a separate piece and fixed to the bottom by welding, screwing or gluing. In the case of screwing, the support element 25 can be in the form of a rod or bar, one end of which is directly threaded and screwed into a threaded hole formed in the bottom 11 of the body 13.

[0117] The support element 25 includes a support portion 250, to which at least part of the elastic restoring force of the deformed cover is applied.

[0118] The height h2 of the support element 25 is greater than the wall height h1 of the set of peripheral walls 12.

[0119] The dimensions of the support element 25 are set to ensure permanent or uninterrupted contact between the cover 14 and the support portion of the support element. Preferably, this contact is permanent or uninterrupted regardless of the excitation frequency of the cover.

[0120] Figure 3 and Figure 4 The housing body 13 is schematically shown, in which a circuit board 40 is mounted, and electronic components of an electronic power device are arranged on the circuit board 40. The board includes an opening 41 through which the corresponding support element 25 passes.

[0121] The support element 25 can be in the form of a vertical rod or bar. In appropriate cases, the support portion is substantially pointed. "Pointed" means that the surface area of the support portion is less than or equal to 1 cm². The support element can be plate-shaped. Thus, the support portion is formed by one of the edge surfaces of the plate, and two opposite edge surfaces of the plate are in contact with the body 13 and the cover 14 respectively. In appropriate cases, the support portion is substantially linear. "Linear" means that the length of the support portion is at least ten times greater than the width.

[0122] Figure 5 and Figure 6 A second embodiment using two support elements 25 is schematically shown. The two support elements 25 connect the body 13 and the cover 14.

[0123] Each support element 25 is rod-shaped or bar-shaped. The dimensions of the two support elements 25 are designed such that they both contact the cover 14. To obtain uniform deformation of the cover 14, the height of the support element 25 can vary according to its position in the housing. The board includes two openings, each of which is passed through by a support element 25.

[0124] Figure 7 FIG. is a schematic view of another embodiment, in which the support element 25 includes a strut 26, one end of the strut is connected to the bottom 11 of the body 13, and the other end forms a fork-shaped member, which includes at least two branches 27. When the housing is closed, the ends of the branches contact the cover 14.

[0125] The dimensions of the two branches 27 are set such that they both contact the cover 14. To obtain uniform deformation of the cover 14, the height of the branch 27 can vary according to its position in the housing.

[0126] According to the first variant, both the branch 27 and the strut 26 are rod-shaped. The support element is thus Y-shaped.

[0127] Figure 8Schematic diagram of another embodiment. In this embodiment, each of the support elements is connected to one of a set of walls 12. When the housing is closed, in this case, each support element extends from one of the set of peripheral walls 12 to the cover 14. The support elements extend obliquely with respect to a direction perpendicular to the bottom 11 of the housing so as to approach the center of inertia of the cover.

[0128] The connection between each support element 25 and the set of peripheral walls 12 is preferably made in a region located in the middle of the wall 12, the height of which is determined in the direction towards the cover 14 in a direction perpendicular to the bottom 11.

[0129] Figure 9 、 10 Figures 9, 10 and 11 show three variant embodiments, which are particularly applicable to Figure 7 and 8 two of the embodiments. They schematically show three top views of the support portions of the support elements 25 cooperating with the cover 14 according to three variant embodiments.

[0130] According to Figure 9 the variant in Figure 7 the support element 25 in Figure 8 or the branch 27 of the support element 25 in

[0131] is rod-shaped or bar-shaped. Figure 10 According to Figure 7 the variant in Figure 8 the support portion is linear because the branch 27 of the support element 25 in

[0132] or the support element 25 in Figure 11 is plate-shaped. Figure 7 According to Figure 8 the variant in

[0133] Figure 12 the support portion is surface-shaped because the branch 27 of the support element 25 in

[0134] or the support element 25 in

[0135] is solid or prismatic.

[0136] The advantage of this embodiment is that the deformation of the cover can be adjusted not only by adjusting the height of the support element, but also by changing the depth p of the protrusion. Starting from two identical housing bodies, the degree of deformation of the cover can be changed by changing the depth of each protrusion. Thus, two different housings can be obtained using the same housing body, each housing having a cover with a different natural frequency. A series of housings with covers having different natural frequencies can be obtained without changing the body of the housing. The protrusion can also have a reinforcing function, which is advantageous in the context of the present invention. If the cover is made of sheet metal, the protrusion can be obtained, for example, by stamping the sheet metal.

[0137] Figure 13 and Figure 14 Two embodiments of the present invention are schematically shown, in which the support element 25 and the cover 14 are integral before the housing is closed. The cover can be made of steel, aluminum, plastic or polymer. The support element can be in the form of a rod directly formed in the cover 14, or fastened thereto by means of a threaded connection, gluing or riveting.

[0138] In Figure 14 the variant shown, the housing can include an engagement device 29 located between the support element 25 and the bottom 11 of the housing body 13. The engagement element can be, for example, a snap-fastening device or a tight fit between a cavity formed at the end of the support element 25 and the bottom 11 of the housing.

[0139] In Figure 15 the example, the support element consists of fingers 25 formed in the cover, which extend into the housing body, for example, to the bottom 11 of the body 13. The fingers 25 are hollow and the internal volume of the fingers communicates with the exterior of the housing. The cover 14 can be made of sheet metal or plastic, and the fingers are formed by deforming the sheet metal of the cover or by plastic molding, respectively. The fingers 25 can have a frustoconical shape extending to the bottom 11 of the body 13.

[0140] In Figure 16 the example, the support element 25 is formed in a part separate from the cover 14. The support element 25 is removable. It is inserted into the recess after the housing is closed. For this purpose, the cover 14 has a hole 144 through which the support element 25 passes. The support element 25 has a first end 254 held by the bottom 11, and the second opposite end of the support element 25 includes a head 252 that is wider than the hole 144 and is located outside the recess 15. In this case, the support part is located at the docking part between the head 252 and the cover 14, outside the recess 15.

[0141] The end or bottom of the support element may include an external thread, and the other of the end and the bottom of the support element may include an internal thread, with the external thread mating with the internal thread. Thus, advantageously, after the housing is closed, the distance between the bottom of the body and the support portion is adjustable. This makes it possible to adjust the deformation of the cover and thus change its natural frequency, even after the housing has been closed.

[0142] This type of connection can also be applied to the foregoing embodiments to fix the support element to the body or the cover.

[0143] According to certain variants, Figure 16 the support element in can be a nail or a stud fitted into a cavity formed in the bottom 11 of the body 13 of the housing.

[0144] Generally speaking, for each embodiment, as Figure 9 shown, each support portion is positioned such that, on at least one straight line passing through the inertial center I of the cover and a point of the support portion, the said point of the support portion is closer to the inertial center I of the cover 14 than to the intersection point between this straight line and the nearest edge of the cover. Preferably, in the case of a surface or linear contact portion, each support portion is positioned such that, on all straight lines D passing through the inertial center of the cover and the point of the support portion, the said point of the support portion is closer to the inertial center of the cover than to the intersection point between this straight line and the nearest edge of the cover.

[0145] According to an embodiment, the cover 14 may be bent or arched towards or away from the bottom 11.

[0146] Of course, the present invention has been described above by way of example. It should be understood that those skilled in the art can generate various alternative embodiments of the present invention without departing from the scope of the present invention.

[0147] It must be noted that all features derived by those skilled in the art from this specification, the drawings and the appended claims, even if actually described only in isolation and arbitrarily in combination with other given features, can be combined with other features or groups of features disclosed herein, provided that they are not explicitly excluded and the technical environment does not render such combinations impossible or meaningless.

Claims

1. A housing (10) for an electronic power device (1) for an electric powertrain, such as a housing for an inverter, the housing (1) include: A body (13) comprising a bottom (11) and a set of peripheral walls (12), wherein the set of peripheral walls together with the bottom define a recess (15) capable of accommodating a component (20) of the electronic power device, A cover (14) covers the recess (15) when the housing (10) is closed, characterized in that the housing comprises at least one supporting element, which is arranged to deform the cover when the housing (10) is closed.

2. The housing according to claim 1, in, Each support element extends between the body (13) and the cover (14).

3. A housing according to any one of the preceding claims, in, Each support element (25) is dimensioned in such a way that deformation of the cover (14) is necessary to close the housing.

4. A housing according to any one of the preceding claims, in, Each support element (25) comprises a support portion (250) cooperating with the cover (14) to deform the cover, and each support element (25) is dimensioned to ensure permanent or uninterrupted contact between the cover (14) and the support portion of the support element (25), regardless of the excitation frequency of the cover (14).

5. A housing according to any one of the preceding claims, in, Each support element (25) is integral with the body (13) before the housing is closed and extends to the cover (14) when the housing is closed.

6. A housing according to any one of the preceding claims, in, Each support element (25) is integral with the cover (14) before the housing is closed and extends to the body (13) when the housing is closed.

7. A housing according to any one of the preceding claims, in, Each support element (25) extends from the bottom (11) of the body to the cover (14).

8. The housing according to any one of claims 1 to 5, in, Each support element extends from a wall of the set of peripheral walls (12) of the body (13) to the cover (14) when the housing is closed.

9. The housing according to claim 4, in, Each support portion is positioned so that on at least one straight line passing through the center of inertia of the cover (14) and a point of the support portion (250), the point of the support portion is closer to the center of inertia of the cover than to the nearest edge of the cover (14).

10. The housing according to any one of claims 1 to 7, in, The or each supporting element comprises a support (26) connected at one end to the bottom of the body (13) and at the other end forming a fork comprising at least two branches (27) the ends of which come into contact with the cover when the housing is closed.

11. The housing according to claim 1, in, Each support element (25) is a finger formed in the cover (14) and extending to the body (13) of the housing, for example to the bottom (11) of the body (13).

12. A housing according to any one of the preceding claims, in, The or each support element (25) is tension-loaded between the cover (14) and the body.

13. The housing according to claim 4 or 9, in, Before or after the housing is closed, the distance between the bottom of the body (13) and the support portion (250) is adjustable.

14. A housing according to any one of the preceding claims, in, The end of the supporting element (25) or the bottom (11) includes an external thread, and the other of the end of the supporting element (25) and the bottom (11) includes an internal thread, and the external thread cooperates with the internal thread.

15. A housing according to any one of claims 4, 9 or 13, in, The cover has a hole through which the supporting element (25) passes, one end of the supporting element is integral with the bottom (11), the opposite end of the supporting element (25) includes a head wider than the hole, and the supporting portion (250) is located at the interface between the head and the cover (14).

16. A housing according to any one of the preceding claims, in, The cover (14) comprises a protrusion (141) cooperating with the supporting element (25).

17. An electronic power device, such as an inverter, comprising a housing as claimed in any one of the preceding claims and a plate (40) on which an electronic component (20) is arranged, the plate comprising at least one opening (41), each opening (41) being penetrated by a corresponding support element (25).

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