Electronic enclosure including a deployable heat sink.

Abstract

An electronic housing comprising at least one enclosure (2), at least one electronic component (21) arranged in the enclosure, and at least one heat sink (22) associated with the electronic component and also arranged in the enclosure. The enclosure comprises at least one base (3) and at least one additional wall. According to the invention, the additional wall is movable relative to the base between a first position and a second position in which the volume of the enclosure is greater than when the additional wall is in its first position. The heat sink comprises at least one elastically deformable portion shaped to be able to expand within the enclosure if the additional wall is in its second position or in an intermediate position between the first and second positions. (Figure from the abstract: Fig. 1c)

Description

Title of the invention: Electronic housing comprising a deployable heat sink.

[0001] The present invention relates to an electronic housing comprising at least one heat sink that can be deployed inside the electronic housing.

[0002] BACKGROUND

[0003] Nowadays, electronic products tend to be increasingly powerful, which necessarily increases the heat they give off.

[0004] As a result, electronic products have increasingly significant heat dissipation requirements. Consequently, the heat sinks incorporated into these products are progressively larger in size.

[0005] This directly affects the dimensions of each electronic product.

[0006] It is therefore understood that fewer and fewer electronic products can be transported together in the same container, which has a significant ecological impact.

[0007] Furthermore, an electronic product is always defined in such a way as to ensure maximum heat dissipation. This constraint is, for example, provided by a customer and / or a standard.

[0008] This aspect also leads to a significant increase in the volume occupied by the heat sinks, whereas in the majority of cases the associated electronic product is not used in such a way as to require this maximum thermal dissipation.

[0009] OBJECT

[0010] The invention aims in particular to provide a solution offering an electronic housing that is more environmentally friendly.

[0011] SUMMARY

[0012] For this purpose, according to one or more embodiments of this disclosure, an electronic housing is provided comprising at least one casing, at least one electronic component arranged in the casing and at least one heat sink associated with the electronic component and also arranged in the casing, the casing comprising at least one base and at least one additional wall.

[0013] According to one or more embodiments of this disclosure, the additional wall is mounted movable relative to the base between a first position and a second position in which the volume of the enclosure is greater than when the additional wall is in its first position, the heat sink comprising at least one elastically deformable portion shaped to be able to deploy in the box if the additional wall is in its second position or in an intermediate position between the first and second positions.

[0014] In this way, it is possible to vary the volume occupied by the heat sink in the box according to the heat exchange requirements.

[0015] One, several, or all embodiments of the present invention can thus be configured so that the enclosure has a smaller volume for all transport and storage purposes when the electronic component is not in operation. In use, if necessary, a user can, however, increase the volume of the enclosure and deploy the heat sink.

[0016] One, several or all embodiments of the present invention thus prove to be much more environmentally friendly than existing devices.

[0017] Optionally, the additional wall is a hood (of the casing.

[0018] Optionally, the box is mobile relative to the base according to at least one translational movement.

[0019] Optionally, the box is provided with at least one ventilation opening extending between the inside of the box and the outside of the box, the ventilation opening is at least partially obstructed when the additional wall is in its first position.

[0020] Optionally, the housing includes at least one additional wall return element in one of its two positions.

[0021] Optionally, the heat sink is shaped to deploy at the same time as the additional wall leaves its first position.

[0022] Optionally, the housing includes at least one locking mechanism for retaining the additional wall in its first position.

[0023] Optionally, the heat sink is shaped to itself cause the additional wall to move towards its second position.

[0024] Optionally, the heat sink is symmetrical along at least one plane of symmetry.

[0025] Optionally, the heat sink includes at least one heat sinking element.

[0026] Optionally, the dissipating element includes a membrane made of electrically conductive material.

[0027] Optionally, the membrane has at least one sinusoidal portion, one end of which is linked to the electronic component and the other end of which is linked to the additional wall.

[0028] Optionally, the heat sink also includes at least one support associated with the membrane.

[0029] Optionally, the membrane is supported by the support.

[0030] Optionally, the support extends from the electronic component towards the cover, the membrane following the support, the support being attached to the component electronic at one end and having a second, opposite, free end.

[0031] Optionally, the membrane surrounds the support.

[0032] Optionally, the support comprises two sub-parts, each sub-part being shaped into a comb having at least one fin, the two combs being nested one inside the other.

[0033] Optionally, the membrane is linked on one side to the electronic component and on the other side to the additional wall.

[0034] Optionally, the membrane is made of or based on metal.

[0035] Optionally, the membrane has a thickness between 0.1 and 0.6 millimeters.

[0036] Optionally, the box is a decoder box and / or a gateway.

[0037] Other features and advantages will become apparent from the following description of particular and non-limiting embodiments of the invention. Brief description of the drawings

[0038] Reference will be made to the attached drawings, among which:

[0039] [Fig. la] la [Fig.la] is a perspective view of an electronic box according to a first embodiment, when the box is in a first configuration;

[0040] [Fig.lb] the [Fig.lb] is a perspective view of the electronic housing of the [Fig.la], when the enclosure is in a second configuration;

[0041] [Fig.le] [Fig.le] is a perspective view of the electronic housing of [Fig.la], when the enclosure is in its second configuration and part of the walls of the enclosure is not shown or is shown by transparency;

[0042] [Fig. Id] the [Fig. Id] is an enlarged view of part of the interior of the electronic housing of the [Fig.la];

[0043] [Fig. le] [Fig. le] is a perspective view of a portion of the interior of the electronic housing of [Fig. la];

[0044] [Fig.2] [Fig.2] is a perspective view of an electronic housing according to a second embodiment, in which part of the walls of the box are not shown;

[0045] [Fig. 3a] [Fig. 3a] is a perspective view of an electronic housing according to a third embodiment, part of the walls of the box not being represented or being represented by transparency;

[0046] [Fig. 3b] [Fig. 3b] is a side view of a portion of the interior of the casing of the electronic housing of the [Fig.3a];

[0047] [Fig. 3c] [Fig. 3c] is a view similar to that of [Fig. 3a], the box being in a second configuration;

[0048] [Fig.4a] [Fig.4a] is a partial side view of an electronic housing according to a fourth embodiment, when the housing is in a first configuration;

[0049] [Fig.4b] [Fig.4b] is a view similar to that of [Fig.4a], the box being in a second configuration. DETAILED DESCRIPTION

[0050] With reference to figures 1a to 1e, an electronic housing 1 according to a first embodiment will now be described.

[0051] For example, box 1 is a set-top box. The set-top box is optionally an audio-video set-top box. Alternatively, box 1 is a gateway, for example, an internet gateway. Alternatively, box 1 is an audio amplifier.

[0052] In general, the housing 1 can be any type of housing requiring cooling of the inside of the housing 1. The applications are therefore numerous.

[0053] The housing 1 includes a casing 2.

[0054] The enclosure 2 comprises a first main wall, hereinafter referred to as the base 3, which is the wall of the enclosure 2 intended to be opposite at least one substrate arranged within the enclosure 2. The base 3 is flat. The base 3 is intended to extend in a vertical plane when the enclosure 2 rests against a corresponding horizontal surface of the support.

[0055] Optionally, the base 3 includes a border 4. For example, the border 4 is defined by one or more side walls extending orthogonally, and / or inclinedly, with respect to the base 3. Preferably, the border 4 runs along the entire periphery of the base 3. The border 4 is, for example, a single piece with the base 3.

[0056] Preferably, base 3 is free of sharp edges.

[0057] The housing 2 also includes a second main wall, hereinafter referred to as the cover 5. This cover 5 is arranged opposite the base 3. The cover 5 is flat. The cover 5 is designed to extend in a vertical plane when the housing 2 rests against a corresponding horizontal surface of the support.

[0058] Optionally, the hood 5 has a border 6. For example, the hood 5 is defined by one or more side walls extending orthogonally, and / or inclinedly, with respect to the hood 5. Preferably, the border 6 runs along the entire periphery of the hood 5. The border 6 is, for example, one piece with the hood 5.

[0059] Preferably, the hood 5 is free of sharp edges.

[0060] In the present case, the base 3 and the hood 5 extend in two different planes but remain parallel to each other and to a common plane defined by a first X axis and a second Y axis. Preferably, the first X axis and the second Y axis are orthogonal to each other.

[0061] In the housing 2, the cover 5 and the base 3 are therefore arranged opposite each other. In this position, the edge 6 of the cover 5 extends towards the edge 4 of the base 3 and vice versa. However, the two edges 4 and 6 are not in contact.

[0062] Optionally, border 4 and border 6 have the same number of walls. Optionally, border 4 and / or border 6 have the same shape. Optionally, border 4 and / or border 6 are identical.

[0063] The base 3 and the cover 5 here have the same external periphery (in shape and dimensions). For example, the base 3 and the cover 5 are shaped like a square or a rectangle.

[0064] The housing 2 also includes at least one side panel 7 connected to the base 3. In the present case, the housing 2 has four side panels 7, all connected to the base 3 and extending towards the cover 5, the various side panels 7 forming a laterally closed enclosure 8. Preferably, this enclosure 8 is free of sharp edges. Thus, the boundary between two successive side panels 7 is defined by a fillet.

[0065] The various lateral sides 7 are all planar here and extend parallel to each other in pairs. Two lateral sides 7 thus extend parallel to each other and to a common plane defined by the first X-axis and a third Z-axis, orthogonal to the first X-axis and the third Y-axis. Two lateral sides 7 extend parallel to each other and to a common plane defined by the second Y-axis and the third Z-axis. The lateral sides 7 therefore extend orthogonally to the base 3.

[0066] Preferably, the enclosure 8 has the same shape as at least one of the edges 4, 6 but different dimensions. The enclosure 8 is thus preferably taller along the third Z-axis and / or narrower along the second Y-axis and / or shorter along the first X-axis.

[0067] Preferably, the height of the side sides 7 (along the third axis Z) is less than the width or length (along the second axis Y and the third axis Z) of the base 3 or the hood 5. Moreover, the height of the side sides 7 is preferably greater than that of the edge of the hood 5 as well as that of the edge of the base 3.

[0068] Furthermore, the various side panels 7 extend inside the edge 4 of the base 3. The edge 6 of the hood 5, however, surrounds the various side panels 7 externally. The various side panels 7 are thus framed at the bottom by the edge 4 of the base 3 and at the top by the edge 6 of the hood 5.

[0069] Preferably, at least one of the side walls 7 is pierced with at least one ventilation opening 10 allowing communication between the inside of the housing 2 and the outside of the housing 2. The ventilation opening 10 extends into the thickness of the associated side wall 7 so as to open at a first axial end to the interior of the housing 2 and such that it opens at a second axial end outside the housing 2. The ventilation opening 10, for example, has an oblong cross-section (along a cutting plane normal to the axial direction of the opening). Optionally, this cross-section of the ventilation opening 10 is the same along its entire length (the length considered along the axial direction of the ventilation opening 10). For example, this cross-section is elongated along a direction extending parallel to the third Z-axis. In other examples, at least one ventilation opening has a circular or polygonal cross-section.

[0070] For example, a single side 7 is pierced with such a ventilation opening 10. For example, said side 7 is pierced with a plurality of ventilation openings 10 allowing communication between the inside of the box 2 and the outside of the box 2. Optionally, the ventilation openings 10 are all identical to each other.

[0071] The ventilation holes 10 here define a row of holes 9. The row of holes 9 extends for example over the entire length of the associated lateral flank 7 and / or extends parallel to the first axis X.

[0072] The casing 2 is thus in at least two parts with the first part mounted movable on the second part.

[0073] In particular, the first part is movably mounted on the second part between a first end position in which the first part is brought closer to the second part and a second end position in which the first part is moved away from the second part.

[0074] For example, the first part is mounted movably on the second part according to at least one translational movement and for example according to a translational movement along the third axis Z.

[0075] Different configurations are possible.

[0076] According to a first configuration, the various side panels 7 are fixed to the base 3 and are not fixed to the cover 5. The various side panels 7 can thus have lower ends integral with the base 3 (and optionally be a single piece with the base 3) and free upper ends. In this case, the first part will be formed by the cover 5 and its edge 4, and the second part will be formed by the base 3 and its edge 6, as well as the various side panels 7. The housing 2 can therefore only be extended on one side via its cover 5.

[0077] According to a second configuration, the various side panels 7 are fixed to the hood 5 and are not fixed to the base 3. The various side panels 7 can thus have upper ends integral with the hood 5 (and optionally one piece with the hood 5) and free lower ends. In this case, the first part will be formed by the base 3 and its rim 6, and the second part will be formed by the hood 5 and its border 4 as well as the various side panels 7. The box 2 can therefore only be extended on one side via its base 3.

[0078] According to a third configuration, the various side panels 7 are connected to the cover 5 and / or the base 3 but are not fixed to the cover 5 and / or the base 3. In this case, the first part will be formed by the base 3 and its edge 6 and by the cover 5 and its edge 4, and the second part will be formed by the various side panels 7. The box 2 can then be extended on both sides via its base 3 and its cover 5.

[0079] We are here considering the case of the first configuration, but this example is not limiting.

[0080] The translational movement of the hood 5 relative to the base 3 can be guided, for example, by the cooperation between the edge 6 of the hood 5 and the side sides 7. Optionally, one or the other of said edge 6 or at least one of said side sides 7 can thus carry guiding means (such as, for example, at least one male element assembly inserting into a female element, one of the male element or of the female element being carried by the side side 7 and the other of the male element or of the female element being carried by the edge 6 - the male element being able to be a lug and the female element being able to be a corresponding groove).

[0081] In the first end position (illustrated in [Fig. aa]), the hood 5 is close to the base 3. The two edges 4, 6 are then opposite each other, without however being in contact with each other.

[0082] Thus in the first end position of the hood 5, the external dimensions of the box 2 and / or the internal volume of the box 2 (volume delimited by the hood 5, the base 3, the two edges 4, 6 and the side sides 7) is minimal.

[0083] Furthermore, in the first end position of the hood 5, the edge 6 of the hood 5 partially or completely covers one, several or all of the ventilation openings 10 of the side flank 7.

[0084] In the second end position of the hood 5 (illustrated in [Fig.lb]), the hood 5 is away from the base 3. The two edges 4, 6 are then opposite each other, without however being in contact with each other, but are further apart than in the first end position of the hood 5.

[0085] Thus in the second end position, the external dimensions of the box 2 and / or the internal volume of the box 2 is at its maximum.

[0086] Moreover, even in the second end position of the hood 5, the edge of the hood 5 still surrounds the enclosure 8 externally at least at the level of the upper portion of said enclosure 8.

[0087] Furthermore, in the second end position of the hood 5, the edge of the hood 5 exposes totally or partially (but then to a greater extent than in the first end position of the hood 5) one, several or all of the ventilation openings 10 of the associated side panel 7. The movement of the hood 5 between its two end positions thus makes it possible to increase or decrease heat exchange with the outside in a simple and quick way.

[0088] Preferably, the equilibrium position of the hood 5 is its second end position.

[0089] For example, the housing 2 includes at least one return element 11 for the cover 5 in its second end position. Optionally, the return element 11 is a spring.

[0090] Optionally, the housing 2 comprises at least two return elements 11, and for example at least three return elements 11, and for example at least four return elements 11. Optionally, the various return elements 11 are identical to each other. Preferably, the various return elements 11 are distributed in a balanced manner within the housing 2. For example, each return element 11 is arranged in a corner of the housing 2.

[0091] For example, at least one return member 11 has a first axial end fixed to the hood 5 and a second axial end fixed to the base 3. The hood 5 is here connected to the rest of the casing 2 by means of the return members 11.

[0092] Thus, in its natural state, the cover 5 is held in its second end position by the return elements. Therefore, if the cover 5 is constrained in its first end position (for example because the case 1 is arranged in packaging), as soon as this constraint disappears (for example because the packaging is torn), the cover 5 naturally returns to its second end position.

[0093] In this way, it is possible for the hood 5 to easily move from one end position to another in a reversible manner.

[0094] It is therefore understood that heat exchanges are minimal when the hood 5 is in its first end position.

[0095] Optionally, the housing 1 includes a plate 12 attached to the base 3 by means of at least one stud 13. For example, the lower ends of the side panels 7 are attached to the plate 12. For example, the side panels 7 and the plate 12 are a single piece. For example, the side panels 7 form an edge of the plate 12. Thus, the plate 12, the side panels 7, and the base 3 define a lower chamber in the housing 2. Furthermore, the plate 12, the side panels 7, and the cover 5 define an upper chamber in the housing 2.

[0096] Preferably, a frame 14 is supported by the plate 12. This frame 14 comprises, for example, a frame 15 and one or more feet 16 for attaching the frame 15 to the plate 12. For example, the frame 14 comprises four feet, each foot 16 being arranged in one of the corners of the plate 12. At least one of the feet 16 extends parallel to the third axis Z. The feet 16 are of a height (height considered along the third axis Z) such that the frame 15 extends under the upper ends of the side flanks 7. The frame 15 is thus entirely surrounded laterally by the side flanks 7 and is further framed below by the plate 12 and above by the cover 5.

[0097] At least one of the return members 11 is optionally fixed to the reinforcement 14. For example, at least the second axial end of at least one return member 11 is fixed to the reinforcement 14 and for example to a corner of the reinforcement 14.

[0098] Optionally the frame 15 comprises two longitudinal members and two transverse members, the longitudinal members preferably extending parallel to each other and to the first axis X and the transverse members preferably extending parallel to each other and to the second axis Y.

[0099] In the present case, the frame 15 has a plate connecting at least the side rails to each other. Optionally, the plate extends to a lower level than the side rails. The plate thus extends closer to the mounting plate 12 than the side rails. For example, the plate has at least one connection interface 18 to at least one of the side rails. Preferably, the connection interface 18 has at least one ventilation opening 19 and in the present case several ventilation openings 19. At least one of these ventilation openings 19 is identical to at least one of the ventilation openings 19 associated with a side rail 7.

[0100] For example, the row of ports of the connection interface 18 is arranged opposite the row of ports 9 of the side flank 7. Preferably, the rows are arranged so that an associated ventilation port 19 of the row of the connection interface 18 is associated with a port 10 of the row of ports 9 of the side flank 7 and preferably so that said two ports 10, 19 extend coaxially to each other.

[0101] Preferably, the platform connects both the side rails and the cross rails. The platform thus forms a ceiling for the plate 12.

[0102] Thus, the frame 14 separates the upper chamber into two sub-chambers: the first sub-chamber is delimited by the plate 12, the frame 14, and the side panels 7, and the second sub-chamber is delimited by the frame 14, the cover 5, and the side panels 7. Preferably, the first sub-chamber forms an enclosed space protected by electromagnetic shielding (shielding formed by the walls of the plate 12, the frame 14, and the side panels 7, and / or by a substrate 20 supported by the plate 12; the substrate 20 is, for example, a printed circuit board). In contrast, the second sub-chamber forms an unshielded space. Furthermore, the ventilation openings 10 do not open into the first sub-chamber. Instead, they open into the second sub-chamber.

[0103] The plate 12 forms or carries at least the aforementioned substrate 20.

[0104] At least one electronic component 21 is arranged on the substrate 20 and therefore inside the shielding. The electronic component 21 is, for example, a chipset.

[0105] This electronic component 21 requires the presence of at least one heat sink 22 which will now be described.

[0106] The heat sink 22 preferably includes a thermal interface 23 such as a thermal pad, for example a pad made of or based on silicone, graphene, etc. This pad is placed directly on the electronic component 21, for example on a face of the electronic component 21 opposite to that resting on the substrate 20.

[0107] The heat sink 22 here includes at least one support 24.

[0108] Preferably, the support 24 is elastically deformable. The support 24 is thus flexible so as to be able to deform (elastically) in relation to the cover 5 and / or the base 3.

[0109] The support 24 is, for example, at least partly made of plastic. In the present case, the entire support 24 is made of the same plastic. Said plastic is, for example, made of or based on at least one thermoplastic, and for example ABS, and / or made of or based on at least one polyacetal, and for example POM.

[0110] The support 24 includes an attachment portion 25 to the first part, and for example to the base 3, and for example to the plate 12 and for example to the substrate 20.

[0111] The attachment portion 25 is, for example, shaped into a plate. The attachment portion 25 is, for example, fixed to the substrate 20 by an external element (screw type), by gluing and, for example, thermal bonding, by welding... Preferably, the attachment portion 25 is fixed to the substrate 20 in at least two distinct areas and preferably in at least two areas extending on either side of the electronic component 21 and / or the thermal interface 23.

[0112] In the illustrated example, the attachment portion 25 extends over the electronic component 21 by being fixed on both sides of the electronic component 21 on the substrate 20. The attachment portion 25 thus also extends over the thermal interface 23.

[0113] The support 24 also includes an active portion 26 and a connecting portion extending between the attachment portion 25 and the active portion. While the attachment portion 25 extends into the first sub-chamber, the active portion 26 extends into the second sub-chamber. The connecting portion 27 therefore extends to pass through the frame 14 and, in particular, the plate 17 (via an opening provided in the latter).

[0114] The connecting portion 27 is for example shaped into a blade and for example into a blade drawing at least one curve between the attachment portion 25 and the active portion 26 and preferably at least one bend and preferably at least two bends. Preferably, the two bends extend in opposite directions, one above the other. The connecting section 27 is thus shaped into a sinusoid (regular or not) and in this case into an S.

[0115] Optionally, the two ends of the blade are flat. The two ends of the blade extend, for example, parallel to each other and preferably parallel to the plane defined by the attachment portion 25. Optionally, the attachment portion 25 and the connecting portion 27 form a single piece.

[0116] The connecting portion 27 is flexible. Thus, the connecting portion 27 is elastically deformable in at least one direction, for example along the third axis Z. The connecting portion 27 can therefore be flattened in the direction of the plate 17.

[0117] The active portion 26 comprises at least one chassis 28 and for example at least two chassis 28 and for example at least three chassis 28.

[0118] At least one of the frames 28, and preferably all of the frames 28, extend longitudinally opposite at least two orifices 10. At least one of the frames 28, and preferably all of the frames 28, extend opposite at least three and preferably at least four orifices of the row of orifices 9.

[0119] Each frame 28 has a first attachment end to a second end of the connecting portion 27, a main portion 29, and a second free end. Preferably, for at least one frame 28, the main portion 29 and the two ends form a single piece.

[0120] For example, the first end is fixed by an external element (screw type), by gluing and for example thermal gluing, by welding ... to the connecting portion 27 or is in one piece with the connecting portion 27. According to one option, the same external element fixes the first ends of at least two chassis 28 (and for example of all the chassis 28) to the connecting portion 27.

[0121] The first end of at least one of the frames 28 is, for example, flat. The first end of at least one of the frames 28 extends, for example, parallel to the second end of the connecting portion 27 and / or to the attachment portion 25.

[0122] Furthermore, preferably, the second free end of the frame 28 is shaped into a plate. Said plate is, for example, flat. Said plate extends, for example, parallel to the second end of the connecting portion 27 and / or to the attachment portion 25 and / or to the first end of the frame 28.

[0123] The two ends of at least one of the chassis 28 preferably have the same length and / or the same thickness. On the other hand, the second free end of the chassis is preferably wider than the first end of the chassis 28.

[0124] Furthermore, the main portion 29 of at least one of the chassis 28 (and here of all the chassis 28) can take the form of a blade optionally hollowed in its center. In the illustrated embodiment, the blade is thus hollowed out to present two arms extending respectively between the two ends of the associated frame 28.

[0125] Furthermore, the main portion 29 of at least one of the frames 28 (and here of two frames 28) is shaped to trace at least one curve between the two ends of the frame 28 and preferably at least one bend and preferably at least two bends. Preferably, the two bends extend in opposite directions, one above the other. The main portion 29 is thus shaped into a sinusoid (regular or irregular) and in the present case into an S-shape.

[0126] Furthermore, the main portion 29 of at least one of the frames 28 is shaped to extend straight. This particular frame 28 is preferably the frame 28 closest to the base 3. For example, the main portion 29 extends at least partly parallel to the platform 17.

[0127] In all cases, the main portions 29 are flexible. The S-shaped main portions 29 are, however, more flexible than the straight main portion 29.

[0128] Thus, the main portions 29 are elastically deformable in at least one direction and for example along the third axis Z. The main portions 29 (and therefore the chassis 28) can thus be flattened in the direction of the plate 17.

[0129] Preferably, the frame 28 with the main straight portion 29 (hereafter referred to as "first frame 28") has a larger cross-section (for example, along a section plane normal to the third axis Z) than that of the other frames 28. In particular, the first frame 28 is shaped so that when a force is exerted on the set of frames 28, the various free ends of the frames 28 are located vertically above the inside of the free end of said first frame 28.

[0130] It is therefore understood that the third chassis 28 is longer than the first chassis 28 and the second chassis 28.

[0131] Preferably, the first chassis 28 has a greater length than the other chassis 28.

[0132] Thus, when the hood 5 is in its first end position, the various chassis 28 are brought closer to each other and to the plate 12. They can then touch each other and / or touch the plate 12. At least the upper chassis 28 touches the hood 5 here.

[0133] When the cover 5 moves into its second end position, the upper frame 28 can then deploy, following the movement of the cover 5. This allows at least one of the lower frames 28 to deploy in turn. Thus, in the second position, the various frames 28 are deployed, and at least their second free ends are not touching.

[0134] In the second end position of the hood 5, the first chassis 28 extends here in a substantially straight line.

[0135] The second chassis 28, arranged above the first chassis 28, extends from the platform 17 towards the hood 5, drawing at least one curve and for example an S.

[0136] The third chassis 28, arranged above the first chassis 28 and the second chassis 28, extends from the platform 17 towards the hood 5, drawing at least one curve and for example an S.

[0137] The heat sink 22 also includes at least one heat sink element having at least one flexible portion. Here, the entire heat sink element is flexible so as to be able to deform (elastically) relative to the cover 5 and / or the base 3.

[0138] Said heat sink element is for example made of a thermally conductive material and for example made of a material having a thermal conductivity greater than 100 Wm*.K1 and optionally a thermal conductivity greater than 200 Wm*.K1 and optionally a thermal conductivity greater than 300 Wm*.K1 and optionally a thermal conductivity greater than 400 Wm*.K'. For example said heat sink element is made of or based on a thermally conductive material and for example made of or based on a graphene-based and / or metal-based material (copper, aluminum, steel, alloy, etc.).

[0139] Said dissipative element is formed here by a membrane 30.

[0140] The membrane 30 has a low thickness and for example a thickness of between 0.01 and 0.05 millimeters and for example between 0.02 and 0.03 millimeters.

[0141] Preferably, said membrane 30 is less thick than the support 24 of the heat sink 22 but is a better thermal conductor.

[0142] For example, said membrane 30 is in the form of a sheet, such as a metal sheet, such as a copper sheet. For example, membrane 30 is a piece of metal adhesive tape such as copper adhesive tape.

[0143] The membrane 30 is here supported by the support 24. For example, the membrane 30 is fixed to the support 24 by an external element (screw type), by gluing and for example thermal gluing, by welding, by pinching in the support 24, ... The support 24 thus provides support for the membrane 30.

[0144] The membrane 30 extends here from the electronic component 21 to the second free end of at least one of the chassis 28.

[0145] Preferably, the membrane 30 is placed on the electronic component 21 via the thermal interface 23. The membrane 30 is thus in direct contact with the thermal interface 23. Advantageously, the membrane 30 is pressed against the thermal interface 23 by the support 24 and in particular the attachment portion 25.

[0146] The membrane 30 then runs along the attachment portion 25 and then the connecting portion 27. The membrane 30 is divided into several layers 31 (the layers 31 being integral with the membrane 30 or being attached and fixed to said membrane 30). Each layer 31 then runs along one of the frames 28, being supported by said frame 28.

[0147] Preferably, the first sheet 31 carried by the first frame 28 does not protrude from the second free end of the first frame 28.

[0148] Preferably, at least one of the second or third second sheet 31 extends beyond the associated frame 28. Preferably, however, at least one of the second or third sheet 31 does not extend beyond the first frame 28.

[0149] In the present case, each "sheet 31 and associated frame 28" assembly forms a wing in the housing 2. Preferably, the different wings have the same length when the frames 28 are deployed (i.e., in the second end position of the cover 5). For the first frame 28, the frame 28 forms the free end of the wing. For the second and third frames 28, the sheets 31 form the free ends of the wings.

[0150] Preferably, the sheet 31 carried by the first frame 28 has a width less than that of the first frame 28 and in particular than that of the main portion 29. For example, the sheet 31 is entirely framed by the arms of said main portion 29.

[0151] Preferably, at least one of the second or third sheets 31 has a greater width than the associated frame 28. Preferably, however, at least one of the second or third sheets 31 has a lesser width than the first frame 28.

[0152] Thus, when a force is exerted on the whole of the frames 28, the different sheets 31 are located vertically below the inside of the free end of said first frame 28.

[0153] As an alternative to what has been indicated (a membrane 30 subsequently decomposing into several sheets 31), the heat sink 22 may comprise as many heat sink elements as there are chassis 28. Each membrane 30 will then extend, as indicated above, from the electronic component 21 to the second free end of the associated chassis 28 and even beyond. The attachment portion 25 of the support 24 will then allow the various membranes 30 to be pressed together against each other against the thermal interface 23. Apart from this, everything stated above is also applicable to the alternative (each sheet 31 then being formed directly by a dedicated membrane 30).

[0154] Whether we consider the variant or the main embodiment, the membrane 30 is integral with the support 24. In particular, the membrane 30 is integral in movement with the associated frame 28.

[0155] Thus, when the hood 5 moves from its first end position to its second end position, each membrane 30 follows the movement of the associated chassis 28.

[0156] The dissipating element(s) thus allow the heat generated by the electronic component 21 to be evacuated: when the cover 5 is in its first end position the sheets 31 are not deployed and the thermal dissipation by the heat sink 22 is minimal.

[0157] Conversely, when the cover 5 is in its second end position, the various sheets 31 are deployed and, preferably, at least their free ends do not touch. Heat dissipation by the heat sink 22 is then at its maximum.

[0158] It should be noted that the heat sink 22 thus described is not fixed to the hood 5. Its deployment depends however on the relative position between the hood 5 and the base 3 since the heat sink 22 can only be deployed if the hood 5 is in its first end position.

[0159] Preferably, the heat sink 22 is symmetrical along at least one plane of central symmetry passing through the electronic component 21 and, for example, a plane including the longitudinal axis along which at least one of the chassis 28 extends and / or including the first X axis.

[0160] Preferably, the heat sink 22 is symmetrical along at least one plane of central symmetry passing through the electronic component 21 and, for example, a plane including an axis transverse to the heat sink 22 and / or including the second Y axis.

[0161] For this purpose, the heat sink 22 includes a second support 32, which is identical here to the first support 24 which has just been described.

[0162] The second support 32 thus extends from the same electronic component 21 but in the opposite direction to the first support 24.

[0163] In this way, the heat sink 22 has a wing-like and / or V-shaped form (each wing being formed of a succession of three frames 28 in the present case).

[0164] Optionally the two attachment portions of the two supports 24, 32 are in one piece (i.e. form a single piece).

[0165] Optionally, the same membrane 30 can extend from a chassis 28 of the first support 24 to a chassis 28 of the second support 32 by being pressed substantially in its center on the thermal interface.

[0166] The housing 1 thus described allows the internal volume of the box 2 to be varied, thus offering, for the same housing 1, a maximum volume allowing maximum heat exchange, and a reduced volume allowing reduced heat exchange.

[0167] It is understood that the displacement of the hood 5 relative to the rest of the housing 2 ensures here both: - a release or an increase in the cross-section of the ventilation openings 10, which allows a variation in the air exchange between the outside of the housing 1 and the electronic component 21; - a displacement of at least a flexible portion of the heat sink 22, which allows a modification of the flow path of the airflows inside the box 2.

[0168] Preferably, the housing 1 is defined so that in the second end position of the cover 5, the housing 1 can ensure maximum heat dissipation. This constraint is, for example, provided by a customer and / or a standard.

[0169] Preferably, the housing 1 is defined so that in the first end position of the hood 5, the housing 1 can ensure minimal heat dissipation (this constraint is for example provided by a customer and / or a standard) and / or so that it can be constrained to the maximum for transport.

[0170] In the first embodiment, the passage of the hood 5 from its first end position to its second end position was ensured by additional return elements 11 to the heat sink 22.

[0171] Alternatively, according to a second embodiment illustrated in [Fig. 2], the housing 1 is devoid of an additional return element. Here, it is the heat sink 22 or heat sinks 22 that themselves cause the hood 5 to move from the first end position to the second end position.

[0172] To this end, at least one support 24 and / or at least one dissipative element deploys naturally (if no force is exerted on the housing 2) and, upon contact with the cover 5, displaces the latter upwards while continuing to deploy. Said support 24 and / or dissipative element is fixed to the cover 5 and / or is merely in contact with the cover 5 without being fixed to it.

[0173] Preferably, at least one of the chassis 28 comes into contact with the hood 5 and for example at least one of the second free ends of at least one of the chassis 28.

[0174] Apart from what has just been said, everything that has been described for the first embodiment is also applicable here.

[0175] In the first and second embodiments, the heat sink 22 formed at least one wing whose base 3 extended from the associated electronic component 21 and whose wing tip was free. This shape is, of course, not limiting, and the heat sink 22 can take on a completely different shape.

[0176] Thus, with reference to figures 3a to 3c, the heat sink 22 comprises a first support 24 and a second support 124.

[0177] The first support 24 is integral with the first part and for example with the hood 5. The second support 124 is integral with the second part and for example with the plate 12 and for example with the substrate 20. At least one of the supports 24, 124 is for example manufactured by extrusion.

[0178] Each support 24, 124 here includes a floor 33. At least one of the floors 33 extends here in a planar manner.

[0179] For example, the floor 33 of the first support 24 extends parallel to the hood 5. For example, the floor 33 of the second support 124 extends parallel to the base 3 and / or the plate 12 and / or the substrate 20. Optionally, the two floors 33 extend parallel to each other here.

[0180] Optionally at least one of the floors 33, and here both floors 33, extend longitudinally in a direction parallel to the first axis X and / or laterally in a direction parallel to the second axis Y.

[0181] Preferably, at least one of the floors 33, and here both floors 33, are arranged so as to run along at least part of the row of holes 9.

[0182] The two floors 33 preferably have the same width. Preferably, one of the floors 33 is longer than the other. In this case, it is the first floor 33 that is longer than the first floor 33. The two floors 33 have the same thickness.

[0183] Furthermore, each of the supports 24, 124 comprises a plurality of fins 34. For example, at least one of the supports 24, 124 comprises between 2 and 12 fins 34, and for example, between 4 and 8 fins 34. Preferably, if one of the supports 24, 124 comprises N fins 34, the other of the supports 24, 124 comprises N+l fins 34. The fins 34 are here integral with the floor 33 of the associated support 24, 124. The fins 34 are preferably integral with the floor 33 of the associated support 24, 124.

[0184] The fins 34 of the first support 24 all extend from the floor 33 of the first support 24 towards the floor 33 of the second support 124. The fins 34 of the second support 124 all extend from the floor 33 of the second support 124 towards the floor 33 of the first support 24.

[0185] At least one fin 34 here has a width (considered along the second Y axis) identical to that of at least one of the first floor 33 or the second floor 33 and / or to that of at least another fin 34. In the present case, all the fins 34 have the same width.

[0186] At least one fin 34 of the heat sink 22 has here a length (considered along the third axis Z) identical to that of at least one other fin 34. In the present case, all the fins 34 have the same length.

[0187] At least one fin 34 of the heat sink 22 has here a thickness (considered along the first X axis) identical to that of at least one other fin 34. In this case, all the fins 34 have the same thickness. The thickness of at least one fin 34 is between 0.5 and 3 millimeters, and for example between 1 and 2 millimeters. Preferably, the thickness of at least one of the fins 34 is less than the thickness of at least one of the floors 33.

[0188] Optionally at least one of the boards 33 has a thickness between 15 and 25 millimeters and / or a width between 45 and 55 millimeters and / or a width between 45 and 55 millimeters.

[0189] Optionally, at least one fin 34 extends in a planar manner. Said fin 34 is thus, for example, formed by a plate. Said fin 34 extends, for example, parallel to a plane comprising the second Y-axis and the third Z-axis. Preferably, said fin 34 extends in this way in line with at least one of the orifices in the row of orifices 9.

[0190] For example, at least one fin 34 of the first support 24 extends parallel to a fin of the second support 124 and / or parallel to the third Z-axis. For example, at least one fin 34 of the second support 124 extends parallel to a fin 34 of the first support 24 and / or parallel to the third Z-axis. In the present case, the various fins 34 extend parallel to each other.

[0191] The various supports 24, 124 are thus each formed into a comb, the fins 34 forming the teeth of said comb and the floor 33 the base 3 of said comb.

[0192] Furthermore, the two supports 24, 124 are shaped so that, for at least the first end position of the hood 5 illustrated in [Fig.3c], the two combs are nested one inside the other.

[0193] For example, the two combs are arranged straddling each other: thus, a fin 34 of one of the two supports 24, 124 is succeeded (along the first axis X) by a fin 34 of the second of the two supports 24, 124. The fins 34 of the two supports 24, 124 thus extend one after the other along the assembly of the two combs.

[0194] Preferably, the fins 34 of the first support 24 extend at regular intervals along the first support 24. Preferably, the fins 34 of the second support 124 extend at regular intervals along the second support 124. However, the spacing between two successive fins 34 of one of the supports 24, 124 is different from the spacing between two successive fins 34 of the other of the supports 24, 124. Said spacing is, for example, smaller for the support 24 carrying the most fins 34.

[0195] Preferably, the first support 24 (and / or the second support 124) comprises at least one longitudinal end wall and preferably at least two longitudinal end walls. Preferably, the longitudinal end wall(s) are directly formed by fins 34 of the associated support 24. Said end fins 34 are arranged at the level of the longitudinal ends of the floor 33 associated. Thus, at least one of the floors 33 is extended on both sides by its end fins 34.

[0196] The support 24 with the most fins 34 then externally frames the support 24 with the fewest fins 34.

[0197] In the present case, it is the first support 24 which externally surrounds the second support 124.

[0198] It is therefore understood that the assembly of the two combs is bounded at its lateral ends by these end walls. The underside of the assembly is bounded by the floor 33 of the first support 24. The top of the assembly is bounded by the ceiling of the second support 124. On the other hand, the longitudinal sides of the assembly are open to allow the air present in the box 2 to circulate through the assembly and in particular to circulate between the fins 34.

[0199] When the hood 5 is in its first end position, as illustrated in [Fig. 3c], the two supports 24, 124 are brought closer together. The fins 34 of the first support 24 may then touch or not touch the floor 33 of the second support 124, and vice versa. However, the fins 34 of the first support 24 are arranged over more than half, and preferably over more than two-thirds, and preferably over more than three-quarters of their length in the second support 124 (and / or vice versa). In this position, heat exchange with the air in the housing 2 is therefore minimal. In this position, the assembly of the two combs has a height of between 20 and 30 millimeters.

[0200] When the hood 5 is in its second end position, as illustrated in [Fig. 3b], the two supports 24, 124 are separated from each other. Preferably, the fins 34 of the first support 24 remain arranged for part of their length in the second support 124 (and / or vice versa). For example, the fins 34 of the first support 24 are arranged for at least one-quarter of their length in the second support 124 (and / or vice versa) – while penetrating less into the second support 124 than in the first end position. For example, the fins 34 of the first support 24 are arranged for between less than one-quarter and half their length in the second support 124 (and / or vice versa).

[0201] In this position, heat exchange with the air in the box 2 is therefore maximized. Indeed, the gap between the two supports 24, 124 increases heat exchange with this air.

[0202] In this position the assembly of the two combs has a height of between 30 and 40 millimeters.

[0203] Optionally, the relative displacement stroke between the two supports 24, 124 is between 3 and 15 millimeters and is for example between 5 and 10 millimeters.

[0204] The first support 24 and the second support 124 are not fixed here directly to the hood 5 and the substrate 20 respectively.

[0205] Preferably, the heat sink 22 includes at least one heat sinking element allowing the two supports 24, 124 to be connected to each other but also to the hood 5 and to the substrate 20 (in particular at the thermal interface).

[0206] The thermal element has at least one flexible portion. Here the entire element is flexible so as to be able to deform (elastically) relative to the cover 5 and / or the base 3.

[0207] Said element is for example made of a thermally conductive material and for example made of a material having a thermal conductivity greater than 100 Wm*.K1 and optionally a thermal conductivity greater than 200 Wm*.K1 and optionally a thermal conductivity greater than 300 Wm*.K1 and optionally a thermal conductivity greater than 400 Wm*.K'. For example said element is made of or based on a thermally conductive material and for example made of or based on a graphene-based and / or metal-based material (copper, aluminum, steel, alloy, etc.).

[0208] Said element is formed here by a membrane 30.

[0209] The membrane 30 has a low thickness and for example a thickness of between 0.01 and 0.05 millimeters and for example between 0.02 and 0.03 millimeters.

[0210] Preferably, said membrane 30 is less thick than the supports 24, 124 of the heat sink 22 but is a better thermal conductor.

[0211] For example, said membrane 30 is in the form of a sheet, such as a metal sheet, such as a copper sheet. For example, membrane 30 is a piece of metal adhesive tape such as copper adhesive tape.

[0212] The membrane 30 is here rolled up on itself so as to form a closed envelope 35.

[0213] The envelope 35 surrounds the assembly of the two combs on its entire periphery. In particular, the envelope 35 surrounds externally the assembly of the two combs by extending successively along the first floor 33, a first of its end fins 34, a first of the end fins 34 of the second floor 33, the second floor 33, a second end fin of the second floor 33 and a second end fin of the first floor 33.

[0214] The envelope 35, however, leaves the sides of the assembly free so that air can circulate between the fins 34. Indeed, the envelope 35 has a central opening through it, an opening in which the assembly is arranged.

[0215] The casing 35 is here shaped to present a cross-section (along a section plane normal to the axis of its central opening) whose external contour is oblong and whose internal contour is also oblong. The flat parts of the oblongs are those in contact with the floors 33 and the curved parts of the oblongs are those surrounding the sides of the assembly of the two combs.

[0216] The envelope 35 preferably has a thinner thickness than at least one of the fins 34 and / or at least one of the supports 24. At least at the point of contact with the floors 33, the envelope 35 has a width identical to that of the floors 33. In the present case, the envelope 35 has the same width over its entire circumference.

[0217] The casing 35 is here placed on the electronic component 21 via the thermal interface 23. The casing 35 is thus in direct contact with the thermal interface 23. For example, the casing 35 is pressed against the thermal interface 23 by an additional part shaped, for example, like the attachment portion 25 of the support 24 of the first embodiment. The casing 35 is thus fixed to the first part.

[0218] Furthermore, the floor 33 of the second support 124 is fixed to the casing 35. The fixing is ensured, for example, by an external element (screw type), by gluing and, for example, thermal bonding, by welding...

[0219] It is therefore understood that the second support 124 is joined to the first part by means of the envelope 35.

[0220] In the present case, the casing 35 is also integral with the second part and, for example, with the cover 5. The attachment is ensured, for example, by an external element (screw type), by bonding and, for example, thermal bonding, by welding...

[0221] Furthermore, the floor 33 of the first support 24 is also fixed to the envelope 35. The fixing is for example carried out by external element (screw type), by gluing and for example thermal gluing, by welding ... It is therefore understood that the first support 24 is joined to the second part by means of the envelope 35.

[0222] Preferably, the envelope 35 is attached to the first support 24 and the second support 124 along their respective floor 33.

[0223] Preferably, the casing 35 is not in contact with other parts of the comb assembly and in particular is not in contact with the fins 34. Preferably, the casing 35 surrounds laterally the longitudinal ends of the assembly without being in contact with it. On the contrary, the casing 35 surrounds the assembly so as to move away from the assembly at the level of said longitudinal ends.

[0224] The casing 35 is thus found to be flexible and in particular more flexible than the supports 24s.

[0225] Thus in the first end position of the hood 5, the casing 35 is constrained: in this position the heat dissipation is minimal.

[0226] In the second end position of the cover 5, the envelope 35 returns to its natural deployed state: the envelope 35 then extends upwards and retracts to a lesser extent laterally. The two supports 24, 124 thus move away from each other. Heat dissipation is maximized.

[0227] It is therefore understood that the membrane 30 here plays the role of a thermal bridge between the two supports 24. In particular, the heat from the electronic component 21, whose heat must be dissipated, is transmitted via the envelope 35 to the two supports 24.

[0228] In this third embodiment, the heat sink 22 thus has the shape of a cartridge having a central orifice provided with fins 34.

[0229] Apart from what has just been said, everything that has been described for the first embodiment and the second embodiment is also applicable here.

[0230] In the embodiments described above, the heat sink 22 always includes at least one support 24 connected to a heat sinking element. These examples are not, however, limiting.

[0231] Thus, according to a fourth embodiment shown in figures 4a to 4b, the heat sink 22 does not have a support.

[0232] The dissipative element is then sufficient on its own to fulfill the role of heat sink.

[0233] The thermal element has at least one flexible portion. Here the entire element is flexible so as to be able to deform (elastically) relative to the cover 5 and / or the base 3.

[0234] Preferably, the dissipating element is also shaped to cause the hood 5 to move relative to the rest of the housing 2. Thus, the dissipating element is here in its natural state when the hood 5 is in its first end position.

[0235] Said element is for example made of a thermally conductive material and for example made of a material having a thermal conductivity greater than 100 Wm*.K1 and optionally a thermal conductivity greater than 200 Wm*.K1 and optionally a thermal conductivity greater than 300 Wm*.K1 and optionally a thermal conductivity greater than 400 Wm*.K'. For example said element is made of or based on a thermally conductive material and for example made of or based on a graphene-based and / or metal-based material (copper, aluminum, steel, alloy, etc.).

[0236] Said element is formed here by a membrane 30.

[0237] The membrane 30 has a low thickness and for example a thickness between 0.1 and 0.6 millimeters and is for example between 0.2 and 0.4 millimeters.

[0238] For example, said membrane 30 is in the form of a strip, such as a metal strip, such as a copper strip.

[0239] The membrane 30 is here shaped so as to form at least one leg and preferably at least two legs.

[0240] For this purpose, the membrane 30 has a connection portion 36 to the electronic component 21 extended by at least one working portion 37. Said two portions 36, 37 are here in one piece i.e. form a single piece.

[0241] The connection portion 36 is here placed on the electronic component 21 via the thermal interface. The connection portion 36 is thus in direct contact with the thermal interface 23. For example, the connection portion 36 is pressed against the thermal interface 23 by an additional part shaped, for example, like the attachment portion 25 of the support 24 of the first embodiment. The connection portion 36 is thus integral with the first part.

[0242] Preferably, the connection portion 36 is planar. For example, the connection portion 36 extends in a plane that is parallel to the plane in which the plate 12 and / or the base 3 and / or the substrate 20 extends and / or in a plane comprising the first X axis and the second Y axis.

[0243] Furthermore, the working portion 37 extends from the connecting portion 36 towards the hood 5. However, the working portion 37 does not extend in a straight line within the housing 2. Indeed, the working portion 37 traces at least one curve within the housing 2, and preferably at least one bend within the housing 2, and preferably at least two bends within the housing 2, the two bends being in opposite directions, one above the other. The working portion 37 is thus shaped like a sinusoid (regular or irregular), and in this case, into an S-shape.

[0244] The working portion 37 preferably extends between the base 3 and the hood 5 in a general direction normal to said base 3 and / or said hood 5.

[0245] Preferably, the end of the working portion 37 opposite the end connected to the connecting portion 36 is flat. For example, the working portion 37 extends in a plane that is parallel to the plane in which the hood 5 extends.

[0246] The working portion 37 is, for example, fixed to the substrate 20 by an external element (screw type), by gluing and, for example, thermal gluing, by welding...

[0247] The membrane 30 is therefore not closed on itself but forms a flexible tab between the electronic component 21 and the cover 5.

[0248] Thus, in the first end position of the hood 5, illustrated in [Fig. 4a], the tab is compressed: the connection portion 36 and the working portion 37 are thus brought closer together. In this position, heat dissipation is minimal.

[0249] In the second end position of the hood 5, illustrated in [Fig. 4b], the tab returns to its natural deployed state. Heat dissipation is at its maximum.

[0250] Preferably, the heat sink 22 is symmetrical along at least one plane of central symmetry passing through the electronic component 21 and, for example, a plane including the longitudinal axis along which at least the connection portion 36 and / or the flat end of the working portion 37 extends and / or including the first X axis.

[0251] Preferably, the heat sink 22 is symmetrical along at least one plane of central symmetry passing through the electronic component 21 and, for example, a plane including an axis transverse to the heat sink 22 and / or including the second Y axis.

[0252] For this purpose, the heat sink 22 includes a second membrane 38, which is identical here to the first membrane 30 which has just been described.

[0253] The second membrane 30 thus extends from the same electronic component 21 but in the opposite direction to the first membrane 30.

[0254] In this way, the heat sink 22 has a pair of legs.

[0255] Optionally the membranes 30, 38 are in one piece (i.e. form a single piece).

[0256] Optionally, the same membrane 30 can extend in relation to two different areas of the hood 5 while being pressed substantially in its center on the thermal interface.

[0257] Apart from what has just been said, everything that has been described for the first embodiment, the second embodiment and the third embodiment is also applicable here.

[0258] Of course, the invention is not limited to the embodiments described but encompasses any variant falling within the scope of the invention as defined by the claims.

[0259] Thus, although here the hood 5 still forms the movable wall with respect to the base 3, another wall may be movable with respect to the base 3 to enlarge the internal volume of the box 2. For example, said wall may be a side panel: the box 2 will enlarge or reduce itself by the side of the box 2 and no longer by the top of the box 2 as has been described.

[0260] Although here the moving part is movable relative to the rest of the box 2 by a single translation, the moving part will be able to move relative to the box 2 otherwise and for example by at least one rotational movement and / or a combination of translation and rotation.

[0261] The housing 2 may be without ventilation openings in connection with the outside and / or may include at least one ventilation opening whose passage section remains constant even in the event of relative displacement between the cover 5 and the rest of the housing 2.

[0262] The enclosure 2 may be devoid of walls forming a magnetic shield.

[0263] The equilibrium position of the hood 5 may be its first end position, its second end position, or an intermediate position between the two.

[0264] The equilibrium position of the heat sink 22 may be that corresponding to the first end position of the hood 5, the second end position of the hood 5 or an intermediate position between the two.

[0265] Although here the cover 5 moves from one position to another in an uncontrolled manner, the movement of the cover 5 from one position to another can be controlled and regulated. For example, the cover 5 can be held in its first end position, its second end position, or an intermediate position by means of at least one latch, the locking / unlocking of which can be controlled, for example, by a user. The housing 2 can thus expand automatically (for example, when the packaging containing and holding it constrained is opened) or can expand under the action of a user (for example, by pressing a locking / unlocking button). This latter option advantageously allows the housing 2 to be kept in a limited volume if the user does not intend to use the electronic housing 1 at its full power, i.e.if the user does not require the maximum heat dissipation capacity of the electronic enclosure 1.

[0266] The heat sink 22 may not have a thermal interface 23 and / or may not be associated with a thermal interface. For example, the heat sink 22 may be in direct contact with the electronic component 21 without an intervening thermal interface 23.

[0267] The heat sink 22 may not be in direct contact with the cover 5 and / or may not be directly attached to the cover 5. Thus, the heat sink 22 may be in direct contact with and / or attached to an integrated heat sink 22 arranged directly above the heat sink. The integrated heat sink 22 may, for example, be made of metal and / or plastic. In this case, the integrated heat sink 22 will be in direct contact with the cover 5 and / or attached to the cover 5. Optionally, the cover 5 may then be movably mounted on the integrated heat sink 22. Such an option is shown, for example, in [Fig. 3a].

[0268] The number of chassis 28 per heat sink 22 may be different from what has been indicated and / or the number of membranes 30, 38 and / or the number of sheets 31 and / or the number of supports 24.

[0269] The heat sink 22 will not necessarily be symmetrical along one or more planes of symmetry. Thus, the frame(s) 28 of a heat sink 22 and / or the wing(s) and / or the membrane(s) 30, 38 and / or the support(s) 24, 124 and / or the sheet(s) 31 may be arranged on the same side of the heat sink.

[0270] Of course, the shape and / or dimensions of at least one element of at least one described heat sink may be different from what has been indicated and / or may be different and / or identical between two different heat sinks.

[0271] The heat sink 22 may have a zone attached to the base 3 and a zone attached to the cover 5, or the heat sink may be attached to only one of the base 3 and the cover 5, or it may not be attached to either the base 3 or the housing 2. In this case, the deployment of the heat sink 22 will not necessarily be simultaneous with that of the cover 5 and / or will not be mechanically linked to that of the cover 5. For example, the cover 5 may move away from the base 3 (for example, by means of one or more return mechanisms), and then a lock may be actuated to subsequently cause the deployment of the heat sink 22 into the housing 2.

[0272] In one or more embodiments, the movement of a wall relative to the rest of the box 2 can be done directly by the heat sink 22 whatever its shape (sheet, envelope 35, blade, etc.) or by another element than the heat sink 22 (such as for example a return member 11, a sliding fixing, etc.).

[0273] Although here the supports 24, 124 are made of plastic, at least one of the supports 24, 124 may be made of another material and for example be made of or based on metal.

[0274] Although here the casing is arranged so that the base and / or the hood extends vertically, the base and / or the hood may be arranged so as to extend horizontally.

[0275] The hood and the base may not extend parallel to each other (whether the casing extends in a general vertical or horizontal direction).

[0276] The different embodiments will of course be able to

[0277] be mixed together.

Claims

Demands

1. Electronic housing comprising at least one enclosure (2), at least one electronic component (21) arranged in the enclosure and at least one heat sink (22) associated with the electronic component and also arranged in the enclosure, the enclosure comprising at least one base (3) and at least one additional wall, the additional wall being mounted movable relative to the base between a first position and a second position in which the volume of the enclosure is greater than when the additional wall is in its first position, the heat sink having at least one elastically deformable portion shaped to be able to deploy in the enclosure if the additional wall is in its second position or in an intermediate position between the first and second positions.

2. Housing according to claim 1, wherein the additional wall is a cover (5) of the housing.

3. Housing according to any one of claims 1 to 2, wherein the box (5) is movable relative to the base (3) in at least one translational movement.

4. Housing according to any one of the preceding claims, wherein the box (5) is provided with at least one ventilation opening (10) extending between the inside of the box and the outside of the box, the ventilation opening is at least partially obstructed when the additional wall is in its first position.

5. Housing according to any one of the preceding claims, comprising at least one return element (11) of the additional wall in one of its two positions.

6. Housing according to any one of the preceding claims, wherein the heat sink (22) is shaped to deploy at the same time as the additional wall leaves its first position.

7. Housing according to any one of the preceding claims, comprising at least one locking mechanism for retaining the additional wall in its first position.

8. Housing according to any one of the preceding claims, wherein the heat sink (22) is shaped to itself cause the displacement of the additional wall towards its second position.

9. Housing according to any one of the preceding claims, wherein the heat sink (22) is symmetrical along at least one plane of symmetry.

10. Housing according to any one of the preceding claims, wherein the heat sink (22) comprises at least one heat sinking element.

11. Housing according to claim 10, in which the dissipating element comprises a membrane (30) made of electrically conductive material.

12. Housing according to claim 11, in which the membrane (30, 38) has at least one sinusoidal portion, one end of which is linked to the electronic component (21) and the other end of which is linked to the additional wall.

13. Housing according to any one of claims 11 to 12, wherein the heat sink (22) also includes at least one support (24, 124) associated with the membrane (30).

14. Housing according to claim 13, in which the membrane (30, 38) is carried by the support.

15. Housing according to claim 14, in which the support (24, 124) extends from the electronic component (21) towards the additional wall, the membrane (30, 38) following the support, the support being linked to the electronic component (21) at a first end and having a second free opposite end.

16. Housing according to claim 13, in which the membrane (30) surrounds the support (24, 124).

17. Housing according to claim 16, wherein the support comprises two sub-parts, each sub-part being formed into a comb having at least one fin (34), the two combs being nested one inside the other.

18. Housing according to claim 16 or claim 17, in which the membrane (30) is linked on one side to the electronic component (21) and on the other side to the additional wall.

19. Housing according to any one of claims 11 to 18, wherein the membrane (30, 38) is made of or based on metal.

20. Housing according to any one of claims 11 to 19, wherein the membrane (30, 38) has a thickness between 0.1 and 0.6 millimeters.

21. A housing according to one of the preceding claims, wherein the housing is a decoder housing and / or a gateway.

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