Protective housing for an electronic module, module comprising such a housing and its manufacturing method

Abstract

Protective housing for an electronic module, module comprising such a housing and its manufacturing method The invention relates to a protective housing (1), in particular for an electronic module (2) for power and / or electrical energy storage, this protective housing (1) being formed of a first (3) and at least one second (3') parts connected at the level of respective peripheral assembly wings (4, 4') together defining a jointing plane, said housing (1) constituting a Faraday shield and being preferably sealed.Housing (1) characterized in that at least the first constituent part (3) comprises a metal body consisting of a thin sheet metal, formed or not, this body being overmolded with at least one plastic material which constitutes, at least on the outer face of the metal body, advantageously on each of the outer and inner faces of the metal body, a network of interconnected reinforcing ribs (7) and / or stiffening wings (7'). Figure to be published with the abstract: Fig. 1C.

Description

Title of the invention: Protective housing for an electronic module, module comprising such a housing and its manufacturing method

[0001] The present invention relates to the field of technical equipment for vehicles, in particular electric cars, and more particularly the protection and preservation of good operating conditions for the electrotechnical or electronic power equipment of these vehicles and / or the energy storage elements, and has as its subjects a protective housing for an electronic power and / or electrical energy storage module, a module comprising such a housing, its manufacturing method and a vehicle comprising at least one such module.

[0002] The specific context of the invention is that of electronic power modules, in particular for electric cars, comprising a protective housing, forming a Faraday shield and preferably sealed, and at least one electronic power circuit, component or set of components housed in the latter, as well as possibly electrical energy storage elements. Generally, these housings are formed of two constituent parts assembled together peripherally. Such a construction makes it possible to protect the circuit(s), storage elements and / or component(s) from the external environment both physically and electromagnetically.

[0003] Known housings are generally composed of a casing and a cover, both of which are molded, in particular from aluminum, and include positioning and fixing sites for the electronic / electrical circuits / components to be housed, which are formed during the molding of the two parts of the housing.

[0004] Furthermore, at least one thermal regulation circuit is often added to one of the two parts to evacuate the calories generated by the operation of the aforementioned circuits and components, at least by those called power circuits, or even by the storage elements.

[0005] Given their method of production and the integration of the aforementioned positioning and fixing sites, the parts of these known housings comprise significant quantities of metallic material (high cost price, significant mass) and have variable wall thicknesses which do not allow for uniform heating or cooling of the part concerned.

[0006] A solution to overcome the main drawbacks mentioned above has already been proposed in French patent application FR2314088 of December 13, 2023 in the name of the applicant.

[0007] The aim of the present invention is to propose an alternative solution which also makes it possible to overcome the main drawbacks mentioned above, but which also has a reduced mass, a lower cost price and a reduced carbon footprint.

[0008] To this end, the invention relates to a protective housing, in particular for an electronic power module and / or for storing electrical energy, this protective housing being formed of at least two constituent parts assembled together peripherally, advantageously a first and at least one second part connected at the level of respective peripheral assembly wings defining together a jointing plane, said housing constituting a Faraday shield and preferably being sealed,

[0009] protective casing characterized in that at least the first constituent part, advantageously intended to receive the electronic power components and / or the electrical energy storage elements, or similar electrical / electronic elements of the module, comprises a metallic body consisting of a thin sheet metal, formed or not, this body being overmolded with at least one plastic material which constitutes, at least on the outer face of the metallic body, advantageously on each of the outer and inner faces of the metallic body, a network of interconnected reinforcing ribs and / or stiffening wings.

[0010] The invention will be better understood from the following description, which relates to preferred embodiments, given as non-limiting examples, and explained with reference to the appended schematic drawings, in which:

[0011] [Fig. 1 A], [Fig. 1B] and [Fig. 1C] are respectively perspective views from above, in section and exploded view of a module according to the invention, comprising a protective housing in accordance with a first embodiment;

[0012] [Fig.2] is a perspective view of the first constituent part of the housing of protection of figures 1 forming a casing, before mounting the components / elements and before forming the connection passage;

[0013] [Fig.3] is an exploded view of the first constituent part of the housing of the [Fig.2], showing the networks of interconnected reinforcing ribs and / or stiffening wings, formed by overmolding plastic material on the inner and outer faces of the metal body of this part, in accordance with a first variant embodiment of said first constituent part, having a network of fins covering a peripheral zone of the outer face of the metal body;

[0014] [Fig.4A], [Fig.4B] and [Fig.4C] illustrate, by perspective views, three other possible variant embodiments of the outer face of the first constituent part shown [Fig.2], namely respectively with a layer of continuous plastic material covering the entire outer face of the metal body (4A), with a network of fins covering the entire outer face of the metal body (4B) and with a thermal regulation circuit present on the outer face of the metal body, opposite the components / elements mounted on the inner face of said body (4C), the overmoldings on the inner face being able to be identical to those of figures IC and 2, or not;

[0015] [Fig.5] is a perspective view of the outer face of the first part constituting a protective housing according to another embodiment of the invention, the metal body being a substantially flat sheet metal and said first part being able to form the cover of a protective housing and being able to be devoid of a wing or stiffening rib on the inner face of the metal body;

[0016] [Fig.6A] and [Fig.6B] are perspective views respectively of the inner face (6A) and the outer face (6B) of the first constituent part of a protective housing according to yet another embodiment of the invention, the metal body being a substantially flat sheet;

[0017] [Fig.7] is a perspective view of the first constituent part of the housing protection of [Fig.4C], illustrating an embodiment of the thermal regulation circuit present on the outer face of the metal body, according to an alternative embodiment of the invention.

[0018] Figures 1 and partially figures 2 to 7 illustrate a protective housing (1), in particular for an electronic module (2) for power and / or electrical energy storage, this protective housing (1) being formed of at least two constituent parts (3, 3') assembled together peripherally, advantageously a first (3) and at least one second (3') parts connected at the level of respective peripheral assembly wings (4, 4') defining together a jointing plane (PJ). This housing (1) advantageously constitutes a Faraday shield (enveloping the interior volume) and is preferably sealed.

[0019] According to the invention, at least the first constituent part (3), advantageously intended to receive the electronic power components (2') and / or the electrical energy storage elements (2”), or similar electrical / electronic elements of the module (2), comprises a metallic body (5) consisting of a thin sheet metal, formed or not, this body (5) being overmolded with at least one plastic material (MP) which constitutes, at least on the outer face (5') of the metallic body (5), advantageously on each of the outer (5') and inner (5”) faces of the body metallic (5), a network (6, 6') of interconnected reinforcing ribs (7) and / or stiffening wings (7').

[0020] Thanks to the aforementioned provisions, the invention makes it possible to save on noble and expensive material (metal such as: steel, aluminum, or alloys thereof), while being able to provide a sealed and protective enclosure in terms of electromagnetic radiation. Indeed, the thickness of the metal body (5) can be chosen to be just sufficient to ensure the continuity of material of the wall of said metal body and advantageously a Faraday shield function (the thicknesses can be different depending on the type of metal).Furthermore, the external network (6), and even better the external (6) and internal (6') networks, for structural reinforcement and stiffening of the wall of the metal body (5), can allow, by suitable positioning of the wings and ribs resulting from targeted overmolding, and taking into account their production in a single-piece network on each face (if applicable), to result in a housing that is more rigid than a housing with a greater wall thickness of the metal body of the first part. In addition, at least part of the mechanical strength and rigidity of the first part (3) also benefits said at least one other constituent part (3'), due to their mutual assembly.

[0021] In accordance with a favorable characteristic of the invention, the two outer (5') and inner (5”) faces of the metal body (5) are overmolded, with the same plastic material (MP) or with two different plastic materials, in particular in each case with a thermoplastic material adapted in terms of chemical, electrical and thermal constraints, said overmolded plastic material(s) (MP) advantageously also covering a free edge zone (4”) of the two faces of the peripheral wing (4) of the metal body (5), further constituting, where appropriate, joining sites (8), a peripheral sealing site (9) integrating or receiving a seal (9') and / or functional and / or reinforcing lateral edges (10).Thus, the structural reinforcement and stiffening provided by the overmolded plastic material extend to the outer periphery of the metal body (5), the assembly wings (4) of generally flat shape constituting sensitive zones, fragile when their thickness is thin.

[0022] Non-limitingly, the plastic material(s) (PM) used may be of the thermoplastic material type, possibly incorporating reinforcing fillers of the fiber or similar type, such as for example polypropylene or a material from the polyamide or polyketone family.

[0023] The seal (9') may be added or overmolded in the site (9), and may or may not contribute to the electromagnetic compatibility properties of the housing (these properties not being necessary, for example, when only electrical energy storage elements are present in the housing (1).

[0024] In order to ensure that the wings (7') and ribs (7) are joined together with high tear resistance, the overmolded areas of the outer face (5'), and possibly of its inner face (5”), of the metal body (5) have a surface condition that promotes joining by mechanical attachment or by chemical adhesion of the overmolded plastic material (MP). Such treatment also promotes sealing between the two types of materials.

[0025] A possible surface treatment consists of laser texturing a metal surface to create a plurality of microstructures (see for example US 11745295), then overmolding the molten plastic material (MP) which will bond to the plurality of microstructures. During melting, the plastic material penetrates into the plurality of microstructures and simultaneously forms the wing (7') or rib (7) in question, projecting from the outer or inner surface of the metal body (5). After hardening in the microstructures, the formed plastic part or part adheres to the metal surface as a hybrid component, this adhesion being all the more resistant as said wings and ribs are part of a single-piece network.

[0026] The surface treatment may also consist, alternatively or additionally, of a chemical treatment of the outer and / or inner surface of the metal body. For example, it may be a chemical treatment of the passivation, phosphating, plasma treatment or anodization type.

[0027] As shown in Figures 1 to 7, the or each of the outer and / or inner networks (6, 6') of wings and / or ribs may have a variable extension and a specific pattern.

[0028] Thus, it may be provided that the network (6, 6') of interconnected reinforcing ribs (7) and / or stiffening wings (7'), of the outer (5') or inner (5”) face of the metal body (5), has a grid or alveolar pattern, for example honeycomb, and extends over the entire surface of the face concerned (5', 5”) or over only a part of this surface, for example only at the level of a strip zone extending between the edge of the peripheral wing (4) and a curved region (12) of the outer face (5') and in a conjugate recessed region (12') of the inner face (5”).

[0029] Preferably, and with a view to optimizing the ratio [stiffening provided / quantity of overmolded plastic material], the stiffening wings (7') consist of strips of plastic material (MP) extending in planes perpendicular to the areas of the surface of the face (5', 5”) on which they are present. The wings (7') may have heights of up to one or more centimeters while the ribs (7) have lesser heights but may be wider. In any event, the positions, the implantation densities, the heights and the widths and the nature of the plastic material constituting them (possibly integrating reinforcing additives) are advantageously determined so that with a minimum quantity of plastic material, sufficient stiffening and structural reinforcement for the intended application are achieved.

[0030] Depending on the shape of the metal body (5) and the regions to be reinforced / stiffened of the latter, the networks (6 and 6') of reinforcing ribs (7) and / or stiffening wings (7') interconnected present on the two outer (5') and inner (5”) faces of the metal body (5) can either be positioned in a mutually alternating manner, or be at least partially coincident and then comprise reinforcing ribs (7) and / or stiffening wings (7') arranged mutually opposite each other on either side of the metal body (5).

[0031] The two outer and inner networks (6, 6') of reinforcing ribs (7) and / or stiffening wings (7') can be connected to each other over the free edge zone (4”) of the peripheral wing (4) of the metal body (5), to thus form a single-piece overall reinforcing structure enclosing said body.

[0032] Advantageously, it may be provided that the free edge zone (4”) of the peripheral wing (4) of the metal body (5) has an encapsulation (11) by the overmolded plastic material (MP), the networks (6, 6') of reinforcing ribs (7) and / or interconnected stiffening wings (7') possibly present on the two outer (5') and inner (5”) faces of the metal body (5) being connected to each other by this encapsulation (11), thus forming a single-piece stiffening framework enclosing said metal body (5).

[0033] In order to avoid any need to specifically provide fixing or positioning sites in any of the constituent parts (3, 3'), in particular in the first part (3), for example in the context of tedious additional operations, the inner face (5”) of the metal body (5) comprises positioning and / or fixing parts (13) for the power electronic components (2') and / or the electrical energy storage elements (2”), in particular screw barrels or wedging formations, these parts (13) being made of overmolded plastic material (MP) and integrated into the network (6') of interconnected reinforcing ribs (7) and / or stiffening wings (7') present on said inner face (5”).

[0034] When the metal body (5) of the housing (1) is likely to be exposed to an aggressive external environment, and it is desirable to avoid or impossible to provide a specific preventive treatment, it may be envisaged that a continuous layer (18) of overmolded plastic material (MP), of low thickness compared to the stiffening wings (7'), covers the surface of the entire external face (5') of the metal body (5). This layer (18) may be formed integrally with the outer network (6) of interconnected reinforcing ribs (7) and / or stiffening wings (7'), the latter extending from this layer.

[0035] According to another variant embodiment of the invention emerging from [Fig. 7], a layer (18) of overmolded plastic material (MP), of small thickness compared to the stiffening wings (7'), covers, continuously or not, at least one limited zone (ZL) of the external face (5') of the metal body (5), for example at least one zone intended for the implantation of a liquid thermal regulation means, in particular in the form of a thermal regulation circuit (14) formed of a plate of thermoplastic material (14') secured by welding with the layer (18) and comprising a grooved pattern (14”) forming by cooperation with the surface of said limited zone (ZL), against which the plate (14) is applied, a sealed circuit for the circulation of liquid between an inlet (15) and an outlet (15').

[0036] More specifically, the overmolded layer (18) of plastic material (MP) may be an openwork layer defining a grooved pattern (18') which matches or coincides with the grooved pattern (4”) of the thermoplastic material plate (14'), said openwork layer (18) forming an intermediate bonding layer for securing said plate (14') with the outer face (5') of the metal body (5) and contributing to the formation of the liquid circulation channels of the thermal regulation circuit (14), in cooperation with the plate (14') and the outer face (5') of the metal body (5).

[0037] When a thermal regulation circuit (14) is present on the outer face (5') of a wall region of the metal body (5), the components (2) or elements (2') are preferably mounted with intimate contact against the inner face (5”) of this wall region.

[0038] As an example of a possible practical embodiment, the thin metal sheet constituting the metal body (5) of at least one (3) of the two constituent parts (3 and 3') consists of a steel or aluminum sheet with a thickness of between 0.1 mm and 3.0 mm, advantageously between 0.3 mm and 2.5 mm, preferably between 0.5 mm and 1.0 mm.

[0039] According to a very favorable concrete embodiment, emerging from Figures 1 by way of example, the protective housing (1) can be made up of a first (3) and a second (3') constituent parts secured to each other, with the creation of a seal and without discontinuity of the electromagnetic protection, by their respective peripheral assembly wings (4, 4'), for example by means of screws (8') or by gluing, the second constituent part (3') optionally also comprising a metal body consisting of a formed thin sheet, overmolded with plastic material (MP), at least on the outer face of this metal body, advantageously on each of the inner and outer faces of its metal body, with the constitution of a network of reinforcing ribs and / or interconnected stiffening wings.

[0040] The invention also relates, as shown for example in Figures 1, to an electronic power and / or electrical energy storage module (2), comprising a protective housing (1) in which electronic power components (2') and / or electrical energy storage elements (2”), or similar electrical / electronic functional elements, are mounted.

[0041] This module (1) is characterized in that the protective housing (1) is a protective housing as described above, advantageously forming a Faraday shield and preferably sealed, and in that the electronic power components (2') and / or the electrical energy storage elements (2”), or the similar electrical / electronic functional elements, are mounted on the first constituent part (3), preferably in a recessed region (12') of the inner face (5”) of the metal body (5) of said first part (3) and in thermally conductive contact with said inner face (5”), a thermal regulation means, in particular in the form of a thermal regulation circuit formed of a thermoplastic material plate (14) secured by welding being possibly present on the outer face (5') of said metal body (5),for example at the level of the external domed region (12) combined with the internal recessed region (12').

[0042] In order to enable a functional connection to be established between the interior of the protective housing (1) and the equipment located outside the latter, said housing (1), and preferably the first constituent part (3) of the latter, comprises at least one passage opening (16), with the creation of a seal and without discontinuity of the electromagnetic protection, for the electrical connection of the electronic power components (2') and / or elements (2”) for storing electrical energy, with the exterior.

[0043] More specifically, it may be provided that the module (2) comprises either, mounted on one side of the passage opening (16), a passage-forming means (14) defining a passageway between the interior of the housing (2) and the exterior, or, arranged on either side of the passage opening (16), complementary passage-forming means (17 and 17') ensuring by mutual cooperation the creation of a passageway between the interior of the housing (1) and the exterior, the or each passage means (17, 17') being optionally secured to the housing (1) by at least one positioning and / or fixing part (13), respectively on the interior and / or exterior face(s) (5', 5') of the metal body (5) of the first part (3).

[0044] The invention also relates to a vehicle, in particular an electric car, characterized in that it comprises at least one module (1) as described above.

[0045] Finally, the invention also relates to a method for manufacturing an electronic power and / or electrical energy storage module, in particular a module (2) as described above, comprising a protective housing (1) in which are mounted electronic power components (2') and / or electrical energy storage elements (2”), or similar electrical / electronic functional elements, said protective housing (1) advantageously being a protective housing described above, comprising at least two constituent parts (3, 3') assembled together, preferably sealed and advantageously forming an enveloping Faraday shield.

[0046] This manufacturing method is characterized in that it consists of providing a first constituent part (3) comprising a metal body (5) consisting of a thin sheet metal, formed or not, and provided with at least one network (6, 6') of reinforcing ribs (7) and / or stiffening wings (7') interconnected, at least on its outer face (5'), also providing at least one second constituent part (3'), the constituent parts (3, 3') being provided with respective peripheral assembly wings (4, 4'), then mounting electronic power components (2') and / or the electrical energy storage elements (2”), or similar electrical / electronic elements in one of the constituent parts (3, 3') forming a casing, and, finally, assembling said at least two constituent parts (3, 3') together peripherally, at the level of their assembly wings (4, 4') respective peripherals, together defining a jointing plan (PJ),preferably waterproof. ,

[0047] Advantageously, the provision of the first constituent part (3) consists of forming a thin sheet to obtain the metal body (5), then overmolding the latter with at least one plastic material (MP) so as to constitute, at least on the outer face (5') of said metal body (5), advantageously on each of the outer (5') and inner (5”) faces of the metal body (5), a network (6, 6') of interconnected reinforcing ribs (7) and / or stiffening wings (7').

[0048] Preferably, the method consists, before their overmolding with at least one plastic material (MP) for the production of said at least one network (6, 6') of interconnected reinforcing ribs (7) and / or stiffening wings (7'), in treating at least the relevant areas of the outer face (5'), and possibly of its inner face (5”), of the metal body (5) so that they have a surface condition promoting the joining by mechanical attachment or by chemical adhesion of the overmolded plastic material (MP).

[0049] In accordance with a favorable characteristic, the method can also consist in producing, by overmolding plastic material (MP) on the inner face (5”) of the metal body (5), positioning and / or fixing parts (13) for the electronic power components (2') and / or the elements (2”) for storing electrical energy, in particular screw barrels or wedging formations, these parts (13) being advantageously integrated into the network (6') of interconnected reinforcing ribs (7) and / or stiffening wings (7') present on said inner face (5”).

[0050] According to another possible variant embodiment, the method may also consist of overmolding a continuous or discontinuous layer (18) of plastic material (MP), of small thickness compared to the stiffening wings (7'), so as to surface cover all or part of the outer face (5') of the metal body (5).

[0051] As shown in [Fig.7], it may be provided that the overmolded layer (18) of plastic material (MP) is an openwork layer defining a grooved pattern (18') which matches or coincides with the grooved pattern (4”) of a plate of thermoplastic material (14') intended to form a thermal regulation circuit (14) with liquid circulation by application and attachment to the outer face (5') of the metal body (5), said openwork layer (18) forming an intermediate bonding layer for attaching said plate (14') to the outer face (5') of the metal body (5) and contributing to the formation of the liquid circulation channels of the thermal regulation circuit (14), in cooperation with the plate (14') and said outer face (5').

[0052] This layer (18) can be overmolded at the same time as the wings (7') or ribs (7) or not, be made of the same material as the latter or not, and be made in the same injection mold or not.

[0053] The reinforcement and stiffening by means of networks (6, 6') of interconnected reinforcing ribs (7) and / or stiffening wings (7') not only makes it possible to save plastic material for a satisfactory result, but also to facilitate the injection overmolding process by limiting the quantity of plastic material to be injected and by promoting the distribution of this material on the surface, in particular for producing the parts (1, 11') and the barrels (13). Furthermore, the passage of the metal body (4) in the injection mold during overmolding makes it possible to carry out a possible rectification of its flatness, in particular at the level of its wings (3”).

[0054] Of course, the invention is not limited to the embodiments described and shown in the attached drawings. Modifications remain possible, in particular from the point of view of the constitution of the various elements or by substitution of technical equivalents, without departing from the scope of protection of the invention.

Claims

Claims

1. Protective housing (1), in particular for an electronic module (2) for power and / or electrical energy storage, this protective housing (1) being formed of at least two constituent parts (3, 3') assembled together peripherally, advantageously a first (3) and at least one second (3') parts connected at the level of respective peripheral assembly wings (4, 4') defining together a jointing plane (PJ), said housing (1) constituting a Faraday shield and being preferably sealed, protective housing (1) characterized in that at least the first constituent part (3), advantageously intended to receive the electronic power components (2') and / or the electrical energy storage elements (2”) of the module (2), comprises a metal body (5) consisting of a thin sheet metal, formed or not, with outer and inner faces (5', 5”),this body (5) being overmolded with at least one plastic material (MP) which constitutes, at least on the outer face (5') of the metal body (5), advantageously on each of the outer (5') and inner (5”) faces of the metal body (5), a network (6, 6') of interconnected reinforcing ribs (7) and / or stiffening wings (7').

2. Protective casing (1) according to claim 1, characterized in that the two outer (5') and inner (5”) faces of the metal body (5) are overmolded, with the same plastic material (MP) or with two different plastic materials, in particular in each case with a thermoplastic material adapted in terms of chemical, electrical and thermal constraints, said overmolded plastic material(s) (MP) advantageously also covering a free edge zone (4”) of the two faces that the peripheral wing (4) of the metal body (5) has, further constituting, where appropriate, joining sites (8), a peripheral sealing site (9) integrating or receiving a seal (9') and / or functional and / or reinforcing lateral edges (10).

3. Protective casing (1) according to claim 1 or 2, characterized in that the overmolded areas of the outer face (5'), and possibly of its inner face (5”), of the metal body (5) have a surface condition promoting joining by mechanical attachment or by chemical adhesion of the overmolded plastic (MP).

4. Protective casing (1) according to any one of claims 1 to 3, characterized in that the network (6, 6') of interconnected reinforcing ribs (7) and / or stiffening wings (7'), of the outer (5') or inner (5”) face of the metal body (5), has a grid or honeycomb pattern, for example honeycomb, and extends over the entire surface of the face concerned (5', 5”) or over only a part of this surface, for example only at a strip zone extending between an edge of the peripheral wing (4) and a domed region (12) of the outer face (5') and in a mating recessed region (12') of the inner face (5”).

5. Protective casing (1) according to any one of claims 1 to 4, characterized in that the stiffening wings (7') consist of strips of plastic material (MP) extending in planes perpendicular to the areas of the surface of the face (5', 5”) on which they are present.

6. Protective housing (1) according to any one of claims 1 to 5, characterized in that the inner face (5”) of the metal body (5) comprises positioning and / or fixing parts (13) for the electronic power components (2') and / or the electrical energy storage elements (2”), in particular screw barrels or wedging formations, these parts (13) being made of overmolded plastic material (MP) and integrated into the network (6') of interconnected reinforcing ribs (7) and / or stiffening wings (7') present on said inner face (5”).

7. Protective casing (1) according to any one of claims 1 to 6, characterized in that a continuous layer (18) of overmolded plastic material (MP), of low thickness compared to the stiffening wings (7'), covers the surface of the entire outer face (5') of the metal body (5).

8. Protective casing (1) according to any one of claims 1 to 6, characterized in that a layer (18) of overmolded plastic material (MP), of low thickness compared to the stiffening wings (7'), covers, continuously or not, at least one limited zone (ZL) of the external face (5') of the metal body (5), for example at least one zone intended for the implantation of a means liquid thermal regulation, in particular in the form of a thermal regulation circuit (14) formed of a thermoplastic material plate (14') secured by welding with the layer (18) and comprising a grooved pattern (14”) forming, by cooperation with the surface of said limited zone (ZL), against which the plate (14) is applied, a sealed circuit for the circulation of liquid between an inlet (15) and an outlet (15').

9. Protective casing (1) according to claim 8, characterized in that the overmolded layer (18) of plastic material (MP) is an openwork layer defining a grooved pattern (18') which matches or coincides with the grooved pattern (4”) of the thermoplastic material plate (14'), said openwork layer (18) forming an intermediate bonding layer for securing said plate (14') with the outer face (5') of the metal body (5) and contributing to the formation of the liquid circulation channels of the thermal regulation circuit (14), in cooperation with the plate (14') and the outer face (5') of the metal body (5).

10. Protective casing (1) according to claim 2 or any one of claims 3 to 9, insofar as they relate to claim 2, characterized in that the free edge zone (4”) of the peripheral wing (4) of the metal body (5) has an encapsulation (11) by the overmolded plastic material (MP), the networks (6, 6') of reinforcing ribs (7) and / or interconnected stiffening wings (7') possibly present on the two outer (5') and inner (5”) faces of the metal body (5) being connected to each other by this encapsulation (11), thus forming a single-piece stiffening framework enclosing said metal body (5).

11. Protective housing (1) according to any one of claims 1 to 10, characterized in that the thin metal sheet constituting the metal body (5) of at least one (3) of the two constituent parts (3 and 3') consists of a steel or aluminum sheet with a thickness of between 0.1 mm and 3.0 mm, advantageously between 0.3 mm and 2.5 mm, preferably between 0.5 mm and 1.0 mm.

12. Protective housing (1) according to any one of claims 1 to 11, characterized in that it consists of a first (3) and a second (3') constituent parts secured together

13.

14. them, with the creation of a seal and without discontinuity of the electromagnetic protection, by their respective peripheral assembly wings (4, 4'), for example by means of screws (8') or by gluing, the second constituent part (3') possibly also comprising a metallic body consisting of a formed thin sheet, overmolded with plastic material (MP), at least on the external face of this metallic body, advantageously on each of the internal and external faces of its metallic body, with the constitution of a network of reinforcing ribs and / or interconnected stiffening wings. Electronic module (2), of the electronic power and / or electrical energy storage module type, comprising a protective housing (1) in which are mounted electronic power components (2') and / or electrical energy storage elements (2”), module (1) characterized in that the protective housing (1) is a protective housing according to any one of claims 1 to 12, advantageously forming a Faraday shield and preferably sealed, and in that the electronic power components (2') and / or the electrical energy storage elements (2”), or the similar electrical / electronic functional elements, are mounted on the first constituent part (3), preferably in a recessed region (12') of the inner face (5”) of the metal body (5) of said first part (3) and in thermally conductive contact with said inner face (5”), a thermal regulation means,in particular in the form of a thermal regulation circuit formed from a plate of thermoplastic material (14) secured by welding, possibly being present on the outer face (5') of said metal body (5), for example at the level of the external curved region (12) combined with the internal recessed region (12')., Module (2) according to claim 13, characterized in that the housing (1), and preferably the first constituent part (3) of the latter, comprises at least one passage opening (16), with the creation of a seal and without discontinuity of the electromagnetic protection, for the electrical connection of the electronic power components (2') and / or elements (2”) for storing electrical energy, with the exterior.

15. Module (2) according to claim 14, characterized in that it comprises either, mounted on one side of the passage opening (16), a passage-forming means (14) defining a passageway between the interior of the housing (2) and the exterior, or, arranged on either side of the passage opening (16), complementary passage-forming means (17 and 17') ensuring by mutual cooperation the creation of a passageway between the interior of the housing (1) and the exterior, the or each passage means (17, 17') being optionally secured to the housing (1) by at least one positioning and / or fixing part (13), respectively on the interior and / or exterior face(s) (5', 5') of the metal body (5) of the first part (3).

16. Vehicle, in particular an electric car, characterized in that it comprises at least one module (1) according to one of claims 13 to 1

17. 1 J. Method for manufacturing an electronic module, of the electronic power and / or electrical energy storage module type, in particular a module (2) according to one of claims 13 to 15, comprising a protective housing (1) in which electronic power components (2') and / or electrical energy storage elements (2”) are mounted, said protective housing (1) advantageously being a protective housing according to any one of claims 1 to 12, comprising at least two constituent parts (3, 3') assembled together, preferably sealed and advantageously forming an enveloping Faraday shield, method characterized in that it consists in providing a first constituent part (3) comprising a metal body (5) consisting of a thin sheet metal, formed or not, and provided with at least one network (6, 6') of interconnected reinforcing ribs (7) and / or stiffening wings (7'),at least on its outer face (5'), also providing at least one second constituent part (3'), the constituent parts (3, 3') being provided with respective peripheral assembly wings (4, 4'), then mounting electronic power components (2') and / or the electrical energy storage elements (2”), or similar electrical / electronic elements in one of the constituent parts (3, 3') forming a casing, and, finally, assembling said at least two constituent parts, (3, 3') between them peripherally, at the level of their respective peripheral assembly wings (4, 4'), together defining a jointing plane (PJ), preferably watertight.

18. Manufacturing method according to claim 17, characterized in that the provision of the first constituent part (3) consists of forming a thin sheet to obtain the metal body (5), then overmolding the latter with at least one plastic material (MP) so as to constitute, at least on the outer face (5') of said metal body (5), advantageously on each of the outer (5') and inner (5”) faces of the metal body (5), a network (6, 6') of interconnected reinforcing ribs (7) and / or stiffening wings (7').

19. Manufacturing method according to claim 17 or 18, characterized in that it consists, before their overmolding with at least one plastic material (MP) for the production of said at least one network (6, 6') of interconnected reinforcing ribs (7) and / or stiffening wings (7'), in treating at least the relevant areas of the outer face (5'), and possibly of its inner face (5”), of the metal body (5) so that they have a surface condition promoting the joining by mechanical attachment or by chemical adhesion of the overmolded plastic material (MP).

20. Manufacturing method according to any one of claims 17 to 19, characterized in that it also consists of producing, by overmolding plastic material (MP) on the inner face (5”) of the metal body (5), positioning and / or fixing parts (13) for the electronic power components (2') and / or the electrical energy storage elements (2”), in particular screw barrels or wedging formations, these parts (13) being advantageously integrated into the network (6') of interconnected reinforcing ribs (7) and / or stiffening wings (7') present on said inner face (5”).

21. Manufacturing method according to any one of claims 17 to 20, characterized in that it also consists of overmolding a continuous or discontinuous layer (18) of plastic material (MP), of low thickness compared to the stiffening wings (7'), so as to surface cover all or part of the outer face (5') of the metal body (5).

22. Manufacturing method according to claim 21, characterized in that the overmolded layer (18) of plastic material (MP) is an openwork layer defining a grooved pattern (18') which matches or coincides with the grooved pattern (4”) of a plate of thermoplastic material (14') intended to form a thermal regulation circuit (14) with liquid circulation by application and joining with the outer face (5') of the metal body (5), said openwork layer (18) forming an intermediate bonding layer for joining said plate (14') with the outer face (5') of the metal body (5) and contributing to the formation of the liquid circulation channels of the thermal regulation circuit (14), in cooperation with the plate (14') and said outer face (5').

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