Power module

Abstract

Title of the invention: Power module. The present invention relates to a power module (6) of an inverter (1), comprising a main body (14) delimited by a perimeter (21) and comprising a lower portion (16) and an upper portion (18) delimited by a junction plane (20), the power module (6) comprising at least one connection terminal of a first polarity (10, 10A), one connection terminal of a second polarity (10, 10B) and a connection plate (12) extending at least partially into the junction plane (20), the connection terminals (10, 10A, 10B) being intended to be connected to a battery and the connection plate (12) being intended to be connected to a motor, at least one connection terminal (10, 10A, 10B) comprising a connection area (38) extending in a plane distinct from the junction plane (20) and being at less partly located within the perimeter (21). Figure of the abstract: Figure 2

Description

Title of the invention: Power module

[0001] The present invention relates to the fields of electronics and electrotechnics, and more particularly to power modules.

[0002] Switching cells are electronic power devices capable of generating alternating current from direct current. Switching cells can be integrated into motor vehicles, particularly hybrid or electric vehicles, to convert the direct current supplied by the vehicle's batteries into alternating current to power the vehicle's electric motor.

[0003] Within an inverter, for example, switching cells divide the current supplied by the energy source, i.e., the vehicle's battery, before sending it to the motor using power modules. These power modules are electrical actuators whose role is, based on control signals sent by the inverter, to control the type and amount of energy transferred from the vehicle's battery to the electric motor. The power modules comprise, for this purpose, sets of components through which the energy intended to power the electric motor flows. Such components include electronic switches, for example, semiconductor transistors. By changing the position of the electronic switches, i.e., by moving them from an open position to a closed position or vice versa, it is thus possible to vary the speed and power of the electric motor.

[0004] Within the power module, it is known to associate electronic switches with electrical connectors also called "leadframes". These electrical connectors are thus intended to ensure a connection of the power module on the one hand with the vehicle's battery and on the other hand with its electric motor.

[0005] The power module must be easily adaptable to different vehicles, i.e., to different inverters and therefore to different dimensions. On the battery side, the electrical connectors can easily be bent to ensure the connection between the battery and the power module. On the other hand, on the electric motor side, bending the electrical connectors is not feasible, either because it would significantly increase the size of the electrical connectors within a limited space, or because it would make the manufacturing process of the power module too complicated or even impossible.

[0006] The present invention falls within this context by proposing a power module in which electrical connectors can easily be connected within different types of voltage converter, by changing the connection height of these electrical connectors.

[0007] The present invention thus has as its main object a power module of a voltage converter of a mobility device, comprising a main body delimited by a perimeter and comprising a lower portion and an upper portion delimited by a junction plane, the power module comprising at least one connection terminal of a first polarity, one connection terminal of a second polarity and a connection plate, the connection terminals being intended to be connected to a battery of the mobility device and the connection plate being intended to be connected to a motor of the mobility device, the power module comprising at least one power switch, at least one connection terminal extending at least partially into the junction plane and comprising a connection area extending in a plane distinct from the junction plane, said connection area being at least partly disposed within the perimeter.

[0008] The power module according to the invention is intended to be integrated into a voltage converter of a mobility device, for example, but not exclusively, into a motor vehicle, and in particular an electric or hybrid motor vehicle. The power module is used to generate alternating current from direct current supplied by an energy source of the mobility device, in particular its battery. The alternating current is intended to power an electric motor of the mobility device, which is a drive and propulsion motor for said mobility device, or, where applicable, for the motor vehicle.

[0009] The power module comprises a main body within which one or more electronic components are arranged, these components being intended to transform direct current into alternating current for the electric motor. The electronic components are, for example, power switches or electronic switches.

[0010] The main body is formed as a single piece. It is abstractly delimited by a joining plane, which delimits an upper portion and a lower portion of the main body. The joining plane corresponds to a junction zone between two half-molds used to manufacture the main body, each of the upper and lower portions being produced in one of the two half-molds. The main body is delimited by a perimeter, which corresponds to an abstract line extending straight along each side of the main body. The perimeter is, for example, rectangular in shape.

[0011] The electronic components arranged within the main body are connected to the battery by connection terminals and to the electric motor by a connection plate, the connection terminals and the plate extending at least partially outside the main body's volume. To ensure the connection between the power module components and the electric motor, the connection plate extends at least partially into the junction plane and is then folded back. To ensure the connection between the power module components and the battery, the connection terminals have a connection area. This connection area is a section of the terminal designed to receive a solder joint to secure the terminal to the battery's connection terminals.

[0012] The connection area of ​​the terminal extends primarily in a plane distinct from the junction plane, and it also extends at least partially within the perimeter of the main body. This arrangement of the connection area limits the space occupied by the terminal within the power module. In particular, the arrangement of the terminal's connection area within the perimeter eliminates the need for additional parts to make the electrical connection to the battery. This arrangement of the connection area is made possible, in particular, by a curvature of the terminal.

[0013] According to an optional feature of the invention, the connection zone extends in a plane substantially parallel to the junction plane.

[0014] The connection zone extends at least partially within the upper portion of the main body.

[0015] According to an optional feature of the invention, the connection terminal comprises a zone distinct from the connection zone and extending mainly in the junction plane.

[0016] This facilitates the manufacture of the power module, as the connection terminal and the connection plate to the electric motor then extend at least partially in the same plane. The connection terminal is an electrical connector, notably made of copper.

[0017] According to an optional feature of the invention, the connection terminal comprises a first end and a second end, the first end extending within the main body, at least a part of the connection terminal extending outside the perimeter.

[0018] In some embodiments, the second end is at a distance from the main body and therefore extends outside the perimeter. In this case, the connecting terminal extends between a first end embedded in the main body and a second end that emerges from this main body outside the perimeter. In other embodiments, both the first and second ends extend within the perimeter.

[0019] The first end is in contact with the electronic components arranged within the main body while the second end is free to make the connection via the connection area.

[0020] According to an optional feature of the invention, the part of the connection terminal extending outside the perimeter has an elbow shape.

[0021] The connection terminal then comprises a zone embedded in the main body, namely its first end, the connection zone and this first end being connected by the elbow. The connection zone and the zone embedded in the main body are substantially flat.

[0022] Thus, the connection terminal is not flat; rather, it has a "U" shape. This is a first embodiment of this connection terminal. The angled shape allows for an increase in the height of the connection terminal and therefore, by extension, a modification of the connection height between the power module and the battery. Here, "height" refers to a dimension measured perpendicular to the junction plane.

[0023] According to an optional feature of the invention, the part of the connection terminal extending outside the perimeter forms the second end.

[0024] This is a second embodiment of the connection terminal, in which this connection terminal has its first end embedded in the main body and its second end at a distance from this main body.

[0025] According to an optional feature of the invention, the connection terminal includes at least one fold embedded in the main body.

[0026] The connection terminal according to the second embodiment is thus folded; in other words, it is not flat from its first end to its second end. The fold of the connection terminal preferably has an angle, measured on the side of the connection area, greater than 135°.

[0027] According to an optional feature of the invention, the main body includes a bearing face on which the connection area rests.

[0028] Such a bearing surface helps to limit the mechanical stresses to which the connection area is subjected during welding with the battery connection terminals. For example, when the connection terminal has a bend, the bearing surface is positioned between the first and second ends.

[0029] According to an optional feature of the invention, the main body has a raised portion projecting from the upper portion, the bearing face being surrounded on at least two of its sides by the raised portion.

[0030] This raised portion allows for an increased height of the power module. More precisely, thanks to the presence of the raised portion, the connection terminal can extend from a first end embedded in the main body to a same height as the connection plate, which facilitates connections within the main body, and a second end bearing the connection area which can easily be connected to the battery connection terminals.

[0031] According to an optional feature of the invention, the raised portion includes at least one receiving housing for the connection area.

[0032] The receiving housing corresponds to a recess formed within the raised portion of the main body. Within this receiving housing, the connection terminal is not entirely embedded in the main body but has at least one face that is not facing the main body, this face corresponding to the connection area.

[0033] According to an optional feature of the invention, the raised portion includes at least one edge overlapping the connection area.

[0034] This edge partially overlaps the connection area. In this way, the edge forms, within the raised portion, a slot allowing the connection terminal to be held in position.

[0035] According to an optional feature of the invention, the main body is made of polyepoxide.

[0036] The polyepoxide makes it possible in particular to ensure the sealing of the main body and the components it contains, and also has an insulating function.

[0037] The invention further relates to a voltage converter, comprising at least one power module as previously mentioned and a cooling device, the lower portion of the power module being disposed against the cooling device.

[0038] For example, the voltage converter comprises at least three power modules as previously mentioned, the lower portion of each of the power modules being arranged against the cooling device.

[0039] The three power modules are arranged side-by-side on the cooling device; therefore, only one cooling device is required for all three power modules. The presence of three power modules allows for three-phase current, with each power module corresponding to one phase.

[0040] The voltage converter is, for example, a high-voltage converter operating at voltages on the order of 800 V. The voltage converter may be a high-voltage inverter. "High voltage" is understood to mean a voltage greater than 80 V, preferably greater than or equal to 100 V.

[0041] The invention also relates to a mobility device comprising at least one voltage converter as previously mentioned, a battery and a motor, the voltage converter being connected to the battery by the connection modules and to the motor by the connection plate.

[0042] Other features, details and advantages of the invention will become clearer upon reading the following description on the one hand, and the illustrative and non-limiting examples of embodiments given with reference to the accompanying drawings on the other hand, in which:

[0043] [Fig-1] schematically illustrates an inverter comprising three power modules according to the invention and a cooling device, the inverter being connected on one side to an electric motor using connection plates and on the other side to a battery using connection terminals;

[0044] [Fig.2] schematically illustrates a perspective view of one of the power modules of [Fig.1], whose connection terminals are presented according to a first embodiment;

[0045] [Fig.3] schematically illustrates a cross-sectional view of a portion of the module of power of the [Fig.2];

[0046] [Fig.4] illustrates, schematically, a perspective view of one of the modules of power of the [Fig.l], whose connection terminals are presented according to a second embodiment.

[0047] [Fig.5] schematically illustrates a cross-sectional view of a portion of the module of power of the [Fig.4].

[0048] The features, variants, and different embodiments of the invention can be combined in various ways, provided they are not incompatible or mutually exclusive. In particular, variants of the invention may be conceived comprising only a selection of features, described hereafter in isolation from the other described features, if this selection of features is sufficient to confer a technical advantage and / or to differentiate the invention from the prior art.

[0049] In the figures, the elements common to several figures retain the same reference.

[0050] In the detailed description that follows, the terms "longitudinal," "transverse," and "vertical" refer to the orientation of a power module according to the invention. A longitudinal direction corresponds to a principal elongation direction of the power module's connection terminals, this longitudinal direction being parallel to a longitudinal axis L of a frame L, V, T illustrated in the figures. A vertical direction corresponds to a direction substantially perpendicular to the junction plane between a lower and an upper portion of the power module, this vertical direction being parallel to a vertical axis V of the L, V, T frame and this vertical axis V being perpendicular to the longitudinal axis L. Finally, a transverse direction corresponds to a direction parallel to a vertical axis V of the L, V, T frame, this transverse axis T being perpendicular to the longitudinal axis L and to the vertical axis V.

[0051] Figure 1 schematically illustrates a voltage converter, here in the form of an inverter 1. This inverter 1 is intended for use in a motor vehicle, for example, an electric or hybrid vehicle. Within this motor vehicle, the inverter 1 is electrically interposed between a battery 2 and an electric motor 4, in particular an electric motor 4 for propelling the vehicle.

[0052] The inverter 1 is configured to transform a direct current from the battery 2 into an alternating current for the electric motor 4. For this purpose, the inverter 1 includes at least one power module 6. As illustrated in [Fig. 1], the power module 6 more precisely comprises three power modules 6. The power modules 6 are aligned along the same direction, which here corresponds to a transverse direction T of the inverter 1. The presence of three power modules 6 allows the inverter 1 to handle a three-phase current, with each power module 6 handling a given current phase.

[0053] Within the inverter 1, the three power modules 6 rest on a cooling device 8. The inverter 1 here comprises a single cooling device 8 intended to cool the three power modules 6 at the same time.

[0054] What will subsequently be described in relation to one of the power modules 6 is, unless otherwise stated, also applicable to the other two power modules 6 of the inverter 1.

[0055] The electrical connection between the power module 6 and the battery 2 on the one hand, and between the power module 6 and the electric motor 4 on the other hand, is ensured in particular by means of electrical connectors. As part of these electrical connectors, the power module includes a plurality of connection terminals 10 linking it to the battery 2 and a connection plate 12 linking it to the electric motor 4. More specifically, the power module 6 includes at least one connection terminal of a first polarity 10A, for example a positive polarity, and one connection terminal of a second polarity 10B, for example a negative polarity. In [Fig.[l] The power module 6 has, along the transverse direction T, two connection terminals of the first polarity 10A between which is interposed the connection terminal of the second polarity 10B, but other arrangements of the connection terminals 10 are conceivable without departing from the scope of the invention.

[0056] The power module 6 is shown here as being directly connected to the battery 2 and the electric motor 4, but other connectors could be interposed between these elements to ensure their indirect electrical connection.

[0057] The power module 6 will now be described in more detail with reference to Figures 2 to 5. Figures 2 and 3 illustrate a power module 6 with connection terminals 10 according to a first embodiment, while Figures 4 and 5 represent a power module 6 with connection terminals 10 according to a second embodiment. Unless otherwise stated or in the event of a manifest incompatibility, the characteristics described with reference to one of these embodiments are applicable to the other embodiment.

[0058] The power module 6 comprises a main body 14, which is a housing, for example, made of polyepoxide. The main body 14 contains a plurality of electronic components, including electrical switches or power switches. These electrical or power switches, not visible in the figures, are configured to chop the direct current from the battery 2 before it is delivered to the electric motor 4.

[0059] The main body 14 of the power module 6 consists of a lower portion 16 and an upper portion 18. The lower portion 16 of the main body 14 is in contact with the cooling device 8, while its upper portion 18 is at a distance from it. Within the main body 14, the lower portion 16 and the upper portion 18 are fictitiously delimited by a junction plane 20, which is shown in Figures 2 and 4. The main body 14 is actually made in one piece, so that the lower portion 16 and the upper portion 18 form a single unit; it is understood that the junction plane 20 forms a boundary between the two portions 14 and 16 for illustrative and comprehensible purposes only.

[0060] The lower portion 16 and the upper portion 18 here have heights, that is to say dimensions measured along a vertical direction V perpendicular to the joining plane 20, which are substantially equivalent.

[0061] The main body 14 is inscribed within a perimeter 21, which corresponds to an abstract line that follows the general shape of the main body 14. The perimeter 21 is determined in a longitudinal-vertical plane where the main body 14 is at its widest point, for example, at the level of the joining plane 20. The perimeter 21 thus determined is intended to be taken into account for any section of the main body 14 along a longitudinal-vertical plane. In other words, the perimeter 21 is measured in the longitudinal-vertical plane where the main body 14 is at its widest point, this perimeter 21 then being applicable to the entire main body 14. In doing so, a single perimeter 21 is considered for the main body 14. The perimeter 21 is generally rectangular in shape. It is illustrated in transparency by dashed lines in Figures 2 and 4.

[0062] The main body 14 of the power module 6 extends, along a longitudinal direction L, between a first longitudinal end 22 and a second Longitudinal end 24. The first longitudinal end 22 is located on the side of the battery 2 and carries the connection terminals 10. The second longitudinal end 24 is located on the side of the electric motor 4 and carries the connection plate 12.

[0063] The connecting plate 12 has at least a first portion 26 which extends mainly within the joining plane 20. This first portion 22 is at least partially embedded within the main body 14, at its second longitudinal end 24. The connecting plate 12 further has a fold 30 connecting the first portion 26 to a second portion 28, such that this second portion 28 extends mainly in a plane distinct from the joining plane 20. As is particularly visible in Figures 2 and 4, the second portion 28 extends outside the main body 14, opposite the upper portion 18.

[0064] At its first longitudinal end 22, the main body 14 has at least one receiving recess 32. More precisely, as shown here, the main body comprises three receiving recesses 32, each corresponding to one of the connection terminals 10. A receiving recess 32 is a recess formed within the main body 14 to at least partially receive the connection terminal 10. In certain embodiments, and particularly in the first embodiment of Figures 2 and 3, the receiving recess 32 is delimited by at least one wall 34. This wall 34 is an element that projects from the main body 14 in the vertical direction V. The wall 34 provides a stop for the connection terminals of the battery 4. Each receiving recess 32 here comprises three walls 34 arranged in a "U" shape so as to border the receiving recess 32.The low walls 34 bordering a reception dwelling 32 may be shared with the adjoining reception dwelling 32. Alternatively, in other embodiments such as the second embodiment illustrated in Figures 4 and 5, the reception dwelling 32 may be without low walls 34.

[0065] Between two adjacent receiving housings 32, a clearance 36 is formed within the main body 14. The clearance 36 is particularly visible in [Fig. 5]. This clearance 36 corresponds to a recess formed in the main body 14 along its entire height, that is to say, along its entire dimension measured along the vertical direction V. The clearance 36 reduces the risk of short circuits between the two connection terminals 10 of opposite polarities that are received in the adjacent receiving housings 32.

[0066] The connection terminals 10 will now be described. The connection terminal 10 is a copper plate extending between a first end 40 and a second end 42. Its first end 40 is embedded within the main body 14, while its second end 42 is free, that is, it is not embedded in the main body 14. The fact that the first end 40 is embedded in the main body 14 allows it to be connected to the electrical switches contained within this main body 14.

[0067] In the vertical direction V, the connection terminal 10 is delimited by a lower face 44 and by an upper face 46. The lower face 44 is opposite the lower portion 16 of the main body 14 while the upper face 46 is opposite its upper portion 18. The lower face 44 and the upper face 46 correspond to the two faces furthest from each other of the connection terminal 10 in the vertical direction V.

[0068] The connection terminal 10 has a connection area 38, which corresponds to the area of ​​the connection terminal 10 by which it is connected to the connection terminals of the battery 4. This connection of the connection area 38 of the connection terminal 10 to the connection terminals of the battery 4 results in particular from a weld.

[0069] The connection zone 38 is supported by the upper face 46 of the connection terminal 10. The connection zone 38 extends here in a plane distinct from the junction plane 20, this plane being moreover substantially parallel to the junction plane 20. According to the invention, the connection zone 38 extends at least partially within the perimeter 21 of the main body 14. Here, the connection zone 38 extends predominantly within this perimeter 21.

[0070] The connection area 38 of the connection terminal 10 rests on a bearing face 48 of the main body 14. As is particularly visible in figures 3 and 5, this bearing face 48 forms a projection within the receiving housing 32 in contact with which the connection terminal 10 is located.

[0071] In addition, the second portion 28 extends in a plane distinct from the extension plane of the connection zone 38.

[0072] The shape of the connection terminal 10 differs depending on the embodiment; thus, in the first embodiment, the connection terminal 10 is an angled plate folded at 180°, while in the second embodiment, the connection terminal 10 is folded without being folded at 180°. It is understood that in both the first and second embodiments, the connection terminal 10 is bent.

[0073] The first embodiment will now be described with reference to Figures 2 and 3. In this first embodiment, the lower face 44 and the upper face 46 extend substantially parallel to each other, the lower face 44 extending in the junction plane 20 while the upper face 46 extends opposite the upper portion 18 of the main body 14. The lower face 44 thus forms a first planar sector of the connection terminal 10 and the upper face 46 forms a second sector plan of this. The lower face 44 and the upper face 46 are connected to each other by an elbow 50 of the connection terminal 10. This elbow 50, which is folded at 180°, extends outside the perimeter 21 of the main body 14.

[0074] Therefore, in the first embodiment, the first end 40 of the connection terminal 10 is embedded in the main body 14, the elbow 50 is outside the perimeter 21, and the second end 42 extends within the perimeter 21 without being embedded in the main body 14. The connection terminal 10 thus extends, along the vertical direction V, on either side of a base located within the receiving housing 32, which supports the bearing face 48. In other words, along this vertical direction V, the bearing face 48 is located between the lower face 44 and the upper face 46, in contact with the upper face 46.

[0075] At the second end 42 of the connection terminal 10 according to the first embodiment, its upper face 46 abuts against the walls 34 which border the receiving housing 32. More precisely, and as is particularly visible in [Fig. 3], the upper face 46 abuts against the "U" shape formed by the walls 34, so that these walls 34 form both a longitudinal and a transverse stop for the upper face 46. In the first embodiment, the receiving housing 32 is formed within the upper portion 18 of the main body 14.

[0076] The second embodiment, in which the connection terminal 10 corresponds to a comma-shaped folded plate, will now be described in relation to Figures 4 and 5. In this second embodiment, the connection terminal extends mainly along the longitudinal direction L, with its first end 40 and its second end 42 being opposite each other along this longitudinal direction L. The first end 40 is embedded in the main body 14 while the second end 42 is disposed outside the perimeter 21.

[0077] The connection terminal 10 according to the second embodiment has a fold 52 between its first end 40 and its second end 42. The fold 52 is embedded in the main body 14. The fold 52 is closer to the first end 40 than to the second end 42, so that a major portion of the connection terminal 10 extending from the second end 42 is flat. This flat portion corresponds to the connection area 38.

[0078] In the second embodiment, the main body 14 comprises a raised portion 54 which is arranged to partially overlap the upper portion 18. More precisely, the raised portion 54 extends, along the longitudinal direction L, over approximately one-third of the upper portion 18. The raised portion 54 extends at the level of the second longitudinal end 24 of the main body 14. Consequently, in the second embodiment, a height of the main body 14, measured the along the vertical direction V at the level of the second longitudinal end 24, is greater than the same height of the main body 14 in the first embodiment.

[0079] In the second embodiment, the receiving housing 32 is provided within the raised portion 54. It is thus understood that in this second embodiment, the connection zone 38 extends opposite the raised portion 54, within said receiving housing 32. As mentioned previously, the connection zone 38 rests on the support face 48, which is here surrounded on at least two of its sides by the raised portion 54.

[0080] It should be noted that in this second embodiment, the raised portion 54 includes at least one edge 56 which partially covers the connection area 38. This edge 56 forms a vertical stop for the upper face 46 of the connection terminal 10 and the connection area 38 which it carries.

[0081] The present invention thus proposes a power module in which a connection height is adapted, so that the power module can be integrated into different inverters. The adaptation of the connection height is made possible in particular by a curvature of the connection terminal, which allows a connection zone of a connection terminal of the power module to be positioned within a perimeter of the module itself. This eliminates the need for additional connecting parts to ensure the connection.

[0082] The present invention is not limited to the means and configurations described and illustrated herein and also extends to any equivalent means and configuration as well as to any technically operative combination of such means.

Claims

Demands

1. A power module (6) of a voltage converter (1) of a mobility device, comprising a main body (14) delimited by a perimeter (21) and comprising a lower portion (16) and an upper portion (18) delimited by a junction plane (20), the power module (6) comprising at least one connection terminal of a first polarity (10, 10A), one connection terminal of a second polarity (10, 10B) and a connection plate (12), the connection terminals (10, 10A, 10B) being intended to be connected to a battery (4) of the mobility device and the connection plate (12) being intended to be connected to a motor (2) of the mobility device, the power module (6) comprising at least one power switch, at least one connection terminal (10, 10A, 10B) extending at least partially in the plane junction plane (20) and comprising a connection zone (38) extending in a plane distinct from the junction plane (20),said connection zone (38) being at least partly located within the perimeter (21).

2. Power module (6) according to the preceding claim, wherein the connection area (38) extends in a plane substantially parallel to the junction plane (20).

3. Power module (6) according to any one of the preceding claims, wherein the connection terminal (10, 10A, 10B) comprises a zone distinct from the connection zone (38) and extending mainly in the junction plane (20).

4. Power module (6) according to any one of the preceding claims, wherein the connection terminal (10, 10A, 10B) comprises a first end (40) and a second end (42), the first end (40) extending within the main body (14), at least a portion of the connection terminal (10, 10A, 10B) extending outside the perimeter (21).

5. Power module (6) according to the preceding claim, wherein the part of the connection terminal (10, 10A, 10B) extending outside the perimeter (21) has an elbow shape (50).

6. Power module (6) according to any one of claims 4 and 5, wherein the connection terminal portion (10, 10A, 10B) extending outside the perimeter (21) forms the second extremity (42).

7. Power module (6) according to any one of the preceding claims, wherein the connection terminal (10, 10A, 10B) comprises at least one fold (52) embedded in the main body (14).

8. Power module (6) according to any one of the preceding claims, wherein the main body (14) comprises a bearing face (48) on which the connection area (38) rests.

9. Power module (6) according to any one of the preceding claims, wherein the main body (14) has a raised portion (54) projecting from the upper portion (18), the bearing face (48) being surrounded on at least two of its sides by the raised portion (54).

10. Power module (6) according to the preceding claim, wherein the raised portion (54) includes at least one receiving housing (32) for the connection area (38).

11. Power module (6) according to any one of claims 9 and 10, wherein the raised portion (54) includes at least one edge (56) overlapping the connection area (38).

12. Power module (6) according to any one of the preceding claims, wherein the main body (14) is made of polyepoxide.

13. Voltage converter (1), comprising at least one power module (6) according to any one of the preceding claims and a cooling device (8), the lower portion (16) of the power module (6) being disposed against the cooling device (8).

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