electrical assembly

Abstract

Title: Electrical Assembly The invention relates to an electrical assembly (1) comprising: an electrical module (2) having at least one electrical connection bar (3), in particular two electrical connection bars (3), an intermediate connector (4) having at least one power bus bar (5), in particular two power bus bars (5), an electronic board (7), at least one measuring bus bar (20) fixed to the electronic board (7) and electrically connected to the electronic board (7), at least one fastening element and / or a solder joint arranged to secure and electrically connect the electrical connection bar (3) of the electrical module (2), the power bus bar (5) of the intermediate connector (4) and the measuring bus bar (20) to form an electrical connection line (6). Figure for the abstract: Fig. 1

Description

Title of the invention: Electrical assembly

[0001] The present invention relates to an electrical assembly.

[0002] Electrical assemblies comprising an electrical module and an intermediate connector electrically connected at the level of an electronic board are known.

[0003] The assembly of the electrical module, the intermediate connector and the electronic board requires the relative positioning of these components, and therefore the consideration of tolerances on the dimensions of the fixing elements of the connection parts.

[0004] Tolerances are taken into account, for example, by using flexible connectors, generally pre-assembled on the electronic board.

[0005] Excessive tolerances can create mechanical stresses on the components and in the weld, which can damage or even destroy these components.

[0006] Tolerances can also create friction between components, thereby causing abrasion and premature wear. This abrasion generates particles that can seriously impair the operation of the electrical assembly.

[0007] Finally, the connection of the components can also be a source of friction and abrasion of the components generating parasitic particles.

[0008] The present invention aims in particular to reduce these mechanical constraints as well as the generation of particles, by proposing a solution for fixing an electrical busbar and a power busbar on an electronic board.

[0009] The invention thus relates to an electrical assembly comprising: • an electrical module comprising at least one electrical connection bar, in particular two electrical connection bars, • an intermediate connector comprising at least one power busbar, in particular two power busbars, • an electronic card, • at least one busbar measuring device fixed to the electronic board and electrically connected to the electronic board, • at least one fixing element and / or a weld arranged to secure and electrically connect the electrical connection bar of the electrical module, the power bus bar of the intermediate connector and the measuring bus bar to form an electrical connection line.

[0010] According to one aspect of the invention, the electrical module comprises as many electrical connection bars as the intermediate connector comprises power bus bars.

[0011] In particular, the electrical module includes two electrical connection bars, and the intermediate connector has two power bus bars, forming two electrical connection lines.

[0012] According to one aspect of the invention, the two electrical connection lines form an electrical connection between the electrical module and the intermediate connector.

[0013] According to one aspect of the invention, the electrical connection bars of the electrical module and the power bus bars of the intermediate connector form a power segment of the electrical connection line, arranged to transmit an electrical current of power Ip between the first and second electrical modules.

[0014] According to one aspect of the invention, the electric power current Ip is greater than 5 A (amperes), in particular greater than 10A, in particular greater than 15A.

[0015] According to one aspect of the invention, the electrical assembly comprises as many measuring bus bars as electrical connection lines, in particular two measuring bus bars.

[0016] According to one aspect of the invention, the measuring busbar forms a measuring section of the electrical connection line and is arranged to connect the electrical connection line to the electronic board.

[0017] According to one aspect of the invention, the measuring busbar is arranged to allow measurement by the electronic card of the electric current in the electrical connection line, in particular passing through the power section of the electrical connection line.

[0018] Alternatively or in addition, the measuring omnibus bar is arranged to supply the electronic board with electrical current.

[0019] According to one aspect of the invention, the electrical connection bar of the electrical module comprises a main body.

[0020] According to one aspect of the invention, the electrical connection bar of the electrical module includes a tab extended by a perforated fixing plate.

[0021] According to one aspect of the invention, the electrical connection bar includes an elbow connecting the leg and the perforated fixing plate.

[0022] According to one aspect of the invention, the perforated fixing plate of the electrical connection bar is rectangular, and substantially flat.

[0023] According to one aspect of the invention, the power busbar of the intermediate connector comprises a main body extended by a perforated fixing plate.

[0024] According to one aspect of the invention, the power busbar includes an elbow connecting the main body and the perforated fixing plate of the power busbar.

[0025] According to one aspect of the invention, the perforated fixing plate of the intermediate connector is rectangular, and substantially flat.

[0026] According to one aspect of the invention, the measuring omnibus bar comprises a perforated fixing plate.

[0027] According to one aspect of the invention, the fixing plate of the measuring omnibus bar is rectangular, and substantially flat.

[0028] According to one aspect of the invention, the mounting plate of the measuring omnibus bar comprises at least one angled section connecting at least two flat and coplanar sections of the mounting plate of the measuring omnibus bar.

[0029] According to one aspect of the invention, the intermediate connector includes a retaining piece, arranged to secure the power bus bars of the intermediate connector.

[0030] According to one aspect of the invention, the retaining piece is made of plastic, and is overmolded onto the power busbars of the intermediate connector.

[0031] According to one aspect of the invention, the measuring omnibus bar includes fixing fingers.

[0032] According to one aspect of the invention, at least one fixing finger is a connecting finger, arranged to electrically connect the measuring busbar to an electronic track of the electronic board.

[0033] According to one aspect of the invention, at least two fixing fingers of the measuring omnibus bar are connecting fingers, in particular four fingers of the measuring omnibus bar are connecting fingers.

[0034] According to one aspect of the invention, all the connecting fingers of the measuring busbar are connected to the same track of the electronic board.

[0035] According to one aspect of the invention, the presence of a plurality of connecting fingers electrically connected to the same track of the electronic board makes it possible to improve the accuracy of the measurement by the electronic board of the current passing through the electrical connection line.

[0036] According to one aspect of the invention, at least one fixing finger is a positioning finger, arranged to facilitate the precise positioning of the measuring busbar on the electronic board during the assembly of the electrical assembly.

[0037] According to one aspect of the invention, the measuring omnibus bar includes at least one elbow connecting a fixing finger and / or a positioning finger to the fixing plate of the measuring omnibus bar.

[0038] According to one aspect of the invention, the fixing fingers are placed on either side of the fixing plate of the measuring omnibus bar.

[0039] According to one aspect of the invention, the measuring omnibus bar is fixed to the electronic board by welding, in particular by welding at the fixing fingers.

[0040] Alternatively, the measuring omnibus bar is fixed to the electronic board at the level of the force-fitting fixing fingers (press-fit mounting).

[0041] According to one aspect of the invention, the electronic board is flat, and a principal plane of the electronic board is defined.

[0042] According to one aspect of the invention, the mounting plate of the measuring busbar is parallel to the main plane of the electronic board.

[0043] According to one aspect of the invention, the measuring omnibus bar is flexible.

[0044] According to one aspect of the invention, the angled section of the bar fixing plate The measuring busbar and the elbows connecting the fixing fingers to the fixing plate of the measuring busbar make the component slightly flexible.

[0045] According to one aspect of the invention, the flexibility of the measuring omnibus bar makes it possible to compensate for the offsets in the positioning of the parts during the assembly of the electrical assembly.

[0046] According to one aspect of the invention, the flexibility of the measuring omnibus bar makes it possible to limit the mechanical stresses in the electrical assembly during the assembly of the electrical assembly.

[0047] According to one aspect of the invention, the mounting plate of the measuring busbar is raised relative to the main plane of the electronic board, in particular raised by at least 1mm.

[0048] According to one aspect of the invention, the electrical assembly is powered by a power source.

[0049] According to one aspect of the invention, the power supply is designed to deliver a DC voltage U, for example between 10 V and 100 V, for example 48 V or 12 V.

[0050] According to one aspect of the invention, the power supply is a direct current voltage source.

[0051] According to one aspect of the invention, the power supply includes a battery.

[0052] According to one aspect of the invention, the power supply includes a filtering unit.

[0053] According to one aspect of the invention, the power supply comprises a capacitive block electrically connected to the filtering unit and arranged to store a portion of the electrical energy transmitted to the electrical assembly.

[0054] According to one aspect of the invention, the electrical module is electrically connected to the power supply.

[0055] According to one aspect of the invention, the intermediate connector mounting plate, the electrical module mounting plate and the measuring busbar mounting plate form a stack.

[0056] In particular, the stacking is carried out in the following order: • intermediate connector mounting plate, • mounting plate for the electrical module, • Fixing plate for the measuring busbar.

[0057] According to one aspect of the invention, the electrical connection is made at the height of the electronic board.

[0058] According to one aspect of the invention, the intermediate connector mounting plate, the electrical module mounting plate and the measuring bus bar mounting plate are flat, coplanar with each other and coplanar with the electronic board and the entire stack is placed less than 30mm, in particular less than 10mm from the electronic board.

[0059] According to one aspect of the invention, the power busbar of the intermediate connector is made of conductive material, in particular metal, in particular copper.

[0060] According to one aspect of the invention, the electrical connection bar of the electrical module is made of conductive material, in particular metal, in particular copper.

[0061] According to one aspect of the invention, the measuring omnibus bar is made of conductive material, in particular metal, in particular copper.

[0062] According to one aspect of the invention, the measuring busbar and / or the electrical connection bar of the electrical module and / or the power busbar of the intermediate connector is covered with a conductive coating.

[0063] According to one aspect of the invention, the electrical assembly includes at least one fastening element arranged to secure and electrically connect the electrical connection bar of the electrical module, the power busbar of the intermediate connector and the measuring busbar to form an electrical connection line.

[0064] According to one aspect of the invention, the intermediate connector mounting plate, the electrical module mounting plate and the measuring busbar mounting plate are perforated and each have a mounting hole.

[0065] According to one aspect of the invention, the fixing holes of the intermediate connector fixing plate, the electrical module fixing plate and the measuring busbar fixing plate are substantially concentric, in particular are substantially concentric and substantially of the same diameter.

[0066] According to one aspect of the invention, the fixing holes of the intermediate connector fixing plate, the electrical module fixing plate and the measuring busbar fixing plate are arranged for the passage of the fixing element of the electrical assembly.

[0067] According to one aspect of the invention, the fastening element is arranged to apply a compressive force on the stack formed by the fastening plates, in particular a force normal to the planes of the fastening plates.

[0068] According to one aspect of the invention, the fixing element is arranged to maintain in contact the stack formed by the fixing plates, and to ensure electrical contact between the fixing plate of the electrical module, the fixing plate of the intermediate connector and the fixing plate of the measuring busbar.

[0069] According to one aspect of the invention, the fastener is a screw and nut assembly.

[0070] Alternatively, the fastener is, for example, a rivet.

[0071] Alternatively or in addition, at least two elements among the power busbar of the intermediate connector, the connection bar of the electrical module and the measuring busbar are joined and electrically connected by welding, in particular by laser welding.

[0072] According to one aspect of the invention, the fastening element passes through the stack formed by the fastening plates, in particular through the fastening holes of the fastening plates.

[0073] According to one aspect of the invention, the electronic card has an opening arranged for the passage of the electrical connection line.

[0074] Alternatively, the electronic board does not have an opening, and the electrical connection line is connected to the electronic board on one of the edges of the electronic board.

[0075] According to one aspect of the invention, the electrical assembly is configured to be carried in a vehicle, in particular is included in an inverter configured to power an electric motor driving the vehicle from a battery, or a DC-DC converter configured to convert a voltage between a high-voltage power supply battery and a low-voltage power supply battery, or an electric charger configured to convert a voltage between an electrical network external to the vehicle and a vehicle battery.

[0076] The invention advantageously allows limiting the mechanical stresses on the parts of the electrical assembly once assembled.

[0077] The invention advantageously allows the functions of fixing and electrical connection of the electrical module and intermediate connector, as well as the electrical connection of the electrical lines to the electronic board, to be grouped in the same place.

[0078] The invention also relates to a method for assembling an electrical assembly according to the invention, comprising: • a step of fixing the measuring busbar onto the electronic board, • a step of placing the electrical module in contact with the measuring busbar, • a step of placing the intermediate connector in contact with the measuring busbar, • a step of fixing the intermediate connector, the electrical module and the measuring bus bar by the fixing component.

[0079] According to one aspect of the invention, the step of placing the measuring busbar on the electronic board comprises: • a step of positioning the measuring omnibus bar on the electronic board, • a step of soldering the measuring busbar onto the electronic board at the soldering pins of the measuring busbar.

[0080] According to one aspect of the invention, the step of placing the electrical module in contact with the measuring busbar includes a step of the fixing plate of the electrical connection bar in contact with the fixing plate of the measuring busbar.

[0081] According to one aspect of the invention, the step of placing the intermediate connector in contact with the measuring busbar includes a step of the mounting plate of the power busbar in contact with the mounting plate of the measuring busbar.

[0082] The invention advantageously allows limiting the generation of particles by friction during the assembly of the electrical assembly.

[0083] Other features, details and advantages of the invention will become clearer upon reading the following description on the one hand, and several illustrative and non-limiting examples of embodiments given with reference to the accompanying schematic drawings on the other hand, in which:

[0084] [Fig-1] The [Fig. 1] is a perspective representation of an electrical assembly according to the invention;

[0085] [Fig.2] The [Fig.2] is a close-up perspective representation of an electrical assembly according to the invention;

[0086] [Fig.3] The [Fig.3] is a cross-sectional representation of a stack formed by the fixing plate of a power busbar of the intermediate connector, the fixing plate of a connecting bar of the electrical module and the fixing plate of the measuring busbar of an electrical assembly according to the invention;

[0087] [Fig.4] The [Fig.4] is a perspective representation of a stack formed by the mounting plate of a power busbar of the intermediate connector, the mounting plate of the electrical module and the mounting plate of the measuring busbar of an electrical assembly according to the invention;

[0088] [Fig.5] The [Fig.5] is a close-up view of a stack formed by the mounting plate of a power busbar of the intermediate connector, the mounting plate of the electrical module and the mounting plate of the measuring busbar of an electrical assembly according to the invention.

[0089] 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.

[0090] Figures 1 and 2 show an electrical assembly 1 according to the invention.

[0091] The electrical assembly 1 comprises an electrical module 2 having two electrical connection bars 3, and an intermediate connector 4 having two power bus bars 5.

[0092] The two electrical connection bars 3 of the electrical module 2, and the two power bus bars 5 of the intermediate connector 4 form two electrical connection lines 6, forming an electrical connection between the electrical module 2 and the intermediate connector 4.

[0093] In particular, the electrical connection bars 3 of the electrical module 2 and the power bus bars 5 of the intermediate connector 4 form a power segment of the electrical connection line 6, arranged to transmit an electrical current of power Ip greater than 5 A, in particular greater than 10 A, in particular greater than 15 A between the first and second electrical modules.

[0094] The electrical connection bars 3 of the electrical module 2 comprise a main body 10, a leg 11 extended by a perforated fixing plate 12, and an elbow 13 connecting the leg and the perforated fixing plate.

[0095] The power bus bars 5 of the intermediate connector 3 comprise a main body 14 extended by a perforated fixing plate 15, and an elbow 16 connecting the main body 14 and the perforated fixing plate 15 of the power bus bar 5.

[0096] The intermediate connector 3 includes a retaining piece 30, arranged to secure the power busbars 5 to the intermediate connector.

[0097] The retaining piece 30 is made of plastic, and is overmolded onto the power busbar 5 of the intermediate connector 4.

[0098] The electrical assembly 1 includes an electronic board 7. This electronic board is planar, and a principal plane of the electronic board 7 is defined.

[0099] The electronic card has an opening 8 arranged for the passage of electrical connection lines 6.

[0100] In an embodiment not shown, the electronic card 7 does not have an opening, and the electrical connection line 6 is connected to the electronic card on one of the edges of the electronic card, without passing through the electronic card.

[0101] The electrical assembly 1 comprises two measuring omnibus bars 20 fixed on the electronic board 7 and electrically connected to the electronic board 7.

[0102] The electrical assembly 1 thus comprises as many measuring bus bars 20 as electrical connection lines 6, in particular two measuring bus bars.

[0103] The measuring busbar 20 forms a measuring section 21 of the electrical connection line 6 is arranged to connect the electrical connection line to the electronic board.

[0104] The measuring busbar 20 is arranged to allow measurement by the electronic card 7 of the electric current passing through the electrical connection line 6, in particular passing through the power section of the electrical connection line 6.

[0105] Alternatively or in addition, the measuring omnibus bar 20 is arranged to supply the electronic board 7 with electrical current.

[0106] The omnibus measuring bar 20 includes a rectangular, substantially flat, perforated fixing plate 22.

[0107] The perforated fixing plates 12, 15, 22 of the connecting bars 2, the intermediate connector 3 and the measuring omnibus bars 20 are rectangular, and substantially flat.

[0108] The power busbar 20 of the intermediate connector 4, the electrical connection busbar 3 of the electrical module 2, and the measuring busbar 20 are made of conductive material, in particular metal, in particular copper.

[0109] Alternatively, the measuring busbar 20 and / or the electrical connection bar 3 of the electrical module 2 and / or the power busbar 5 of the intermediate connector 4 are covered with a conductive coating.

[0110] The electrical assembly 1 is powered by a power source, not shown in the figures.

[0111] The power supply is a DC voltage source designed to deliver a DC voltage U, for example between 10 V and 100 V, for example 48 V or 12 V.

[0112] The power supply includes a battery, a filtering unit and a capacitive block electrically connected to the filtering unit and arranged to store part of the electrical energy transmitted to the electrical assembly.

[0113] The electrical module 2 of the electrical assembly 40 is electrically connected to the power supply.

[0114] The electrical assembly 1 is configured to be installed in a vehicle, in particular is included in an inverter configured to power a electric motor driving the vehicle from a battery, or a DC-DC converter configured to convert a voltage between a high-voltage power supply battery and a low-voltage power supply battery, or an electric charger configured to convert a voltage between an electrical grid external to the vehicle and a vehicle battery.

[0115] Figures 3, 4 and 5 show a stack 40 formed by the fixing plate 15 of a power busbar 5 of the intermediate connector 4, the fixing plate 12 of a connecting bar 3 of the electrical module 2 and the fixing plate 22 of the measuring busbar 20 of an electrical assembly 1 according to the invention.

[0116] The fixing plates 15, 12, 22 of the power busbars 5 of the intermediate connector 4, of the electrical connection bars 3 of the electrical module 2 and of the measuring busbar 20 form the stack 40, arranged in this order: • mounting plates 15 of intermediate connector 4, • mounting plates 12 of electrical module 2, • fixing plates 22 of the measuring omnibus bar 20.

[0117] The fixing plate 22 of the measuring omnibus bar 20 includes an angled section 23 connecting at least two flat and coplanar sections 24 of the fixing plate 22 of the measuring omnibus bar 20.

[0118] The measuring omnibus bar 20 includes fixing fingers 25, here five fixing fingers.

[0119] Four fixing fingers 25 are connecting fingers 26, arranged to electrically connect the measuring busbar 20 to an electronic track of the electronic board 7.

[0120] All the connecting fingers 25 of the measuring omnibus bar 20 are connected to the same track of the electronic board.

[0121] The measuring omnibus bar 20 includes five elbows 50 connecting the fixing fingers 25 to the fixing plate 22 of the measuring omnibus bar.

[0122] The fixing fingers 25 are placed on either side of the fixing plate 22 of the measuring omnibus bar 20.

[0123] The measuring omnibus bar 20 is fixed to the electronic board 7 by welding, in particular by welding at the fixing fingers 25.

[0124] Alternatively, the measuring omnibus bar 20 is fixed to the electronic board 7 at the fixing fingers 25 by force mounting by "press fit" in English.

[0125] The fixing plate 22 of the measuring omnibus bar 20 is parallel to the main plane of the electronic board.

[0126] The measuring omnibus bar 20 is flexible.

[0127] In particular, the angled section 23 of the fixing plate 22 of the measuring bus bar 20 and the bends 50 connecting the fixing fingers 25 to the fixing plate 22 of the measuring bus bar 20 make the component slightly flexible.

[0128] The flexibility of the measuring omnibus bar 20 makes it possible to compensate for the offsets in the positioning of the parts and to limit the mechanical stresses in the electrical assembly 1 during the assembly of the electrical assembly 1.

[0129] The presence of a plurality of connecting fingers 26 electrically connected to the same track of the electronic board 7 allows to improve the accuracy of the measurement by the electronic board of the current through the electrical connection line 6.

[0130] A fixing finger 25 is a positioning finger 27 arranged to facilitate the precise positioning of the measuring omnibus bar 20 on the electronic board 7 during the assembly of the electrical assembly 1.

[0131] The electrical assembly 1 includes two fixing elements 45 arranged to secure and electrically connect the electrical connection bars 3 of the electrical module 2 with the power bus bars 5 of the intermediate connector 4 and the measuring bus bars 20 to form the two electrical connection lines 6.

[0132] The fastening element 45 is a screw and nut assembly.

[0133] The mounting plate 15 of the intermediate connector 4, the mounting plate 12 of the electrical module 2 and the mounting plate 22 of the measuring busbar 20 are perforated and each have a mounting hole 55, 56, 57.

[0134] The fixing holes 55, 56, 57 of the fixing plate 15 of the intermediate connector 4, of the fixing plate 12 of the electrical module 2 and of the fixing plate 22 of the measuring busbar 20 are substantially concentric once the electrical assembly is assembled, in particular are substantially concentric and substantially of the same diameter, and are arranged for the passage of the fixing element 45 of the electrical assembly.

[0135] In an embodiment not shown, the fastening element 45 is for example a rivet.

[0136] In an embodiment not shown, at least two elements among the power bus bars 5 of the intermediate connector 4, the connecting bars 3 of the electrical module 2 and the measuring bus bar 20 are joined and electrically connected by a weld, in particular by a laser weld.

[0137] The fixing element 45 is arranged to apply a compressive force on the stack 40 formed by the fixing plates 12, 15, 22, in particular a force normal to the planes of the fixing plates, to keep the stack 40 formed by the fixing plates 12, 15, 22 in contact and to ensure electrical contact between the fixing plates 12, 15, 22.

[0138] The fixing element 45 passes through the stack 40 formed by the fixing plates, in particular through the fixing holes of the fixing plates.

[0139] The electrical connection is made at the level of the electronic board 7.

[0140] The fixing plate 22 of the measuring omnibus bar 20 is raised relative to to the main plane of the electronic board 7, in particular raised by at least 1mm.

[0141] The mounting plate 15 of the intermediate connector 4, the mounting plate 12 of the electrical module 2 and the mounting plate 22 of the measuring busbar 20 are planar, coplanar with each other and coplanar with the electronic board 7, and the entire stack 40 is placed within 30mm, in particular within 10mm of the electronic board 7.

[0142] The invention advantageously allows limiting the mechanical stresses on the parts of the electrical assembly 1 once assembled, and grouping in the same place the fixing and electrical connection functions of the electrical module 2 and the intermediate connector 4, as well as the electrical connection of the electrical lines 6 to the electronic board 7.

Claims

Demands

1. Electrical assembly (1) comprising: • an electrical module (2) having at least one electrical connection bar (3), in particular two electrical connection bars (3), • an intermediate connector (4) having at least one power bus bar (5), in particular two power bus bars (5), • an electronic board (7), • at least one measuring bus bar (20) fixed to the electronic board (7) and electrically connected to the electronic board (7), • at least one fastening element (45) and / or a solder joint arranged to secure and electrically connect the electrical connection bar (3) of the electrical module (2), the power bus bar (5) of the intermediate connector (4) and the measuring bus bar (20) to form an electrical connection line (6).

2. Electrical assembly (1) according to claim 1, wherein the electrical module (2) comprises as many electrical connection bars (3) as the intermediate connector (4) comprises power bus bars (5), in particular the electrical module (2) comprises two electrical connection bars (3) and the intermediate connector (4) comprises two power bus bars (5), forming two electrical connection lines (6).

3. Electrical assembly (1) according to any one of the preceding claims, wherein the measuring busbar (20) is arranged to allow measurement by the electronic board (7) of the electric current passing through the electrical connection line (6).

4. Electrical assembly (1) according to any one of the preceding claims, wherein the measuring busbar (20) is arranged to supply the electronic board (7) with electric current.

5. Electrical assembly (1) according to any one of the preceding claims, wherein the electrical connection bar (3) of the electrical module (2) comprises a main body (10), a leg (11) extended by a perforated fixing plate (12) and an elbow (13) connecting the leg (11) and the perforated fixing plate (12).

6. Electrical assembly (1) according to any one of the preceding claims, wherein the power busbar (5) of the intermediate connector (4) comprises a main body (14) extended by a perforated fixing plate (15), and an elbow (16) connecting the main body (14) and the perforated fixing plate (15) of the power busbar (5).

7. Electrical assembly (1) according to any one of the preceding claims, wherein the measuring omnibus bar (20) includes fixing fingers (25).

8. Electrical assembly (1) according to claim 7, wherein at least one fixing finger (25) is a connecting finger (26), arranged to electrically connect the measuring busbar (20) to an electronic track of the electronic board (7), and at least one fixing finger (25) is a positioning finger (27).

9. Electrical assembly (1) according to any one of the preceding claims, wherein the measuring busbar (20) comprises a perforated fixing plate (22), and comprises at least one angled section (23) connecting at least two flat and coplanar sections (24) of the fixing plate (22) of the measuring busbar (20).

10. Electrical assembly (1) according to any one of the preceding claims, powered by a power supply designed to deliver a DC voltage U, for example between 10 V and 100 V, for example 48 V or 12 V.

11. Electrical assembly (1) according to any one of the preceding claims, wherein the measuring busbar (20) is fixed to the electronic board by soldering.

12. Electrical assembly (1) according to claims 5, 6 and 9, wherein the mounting plate (15) of the intermediate connector (4) the mounting plate (12) of the electrical module (2) and the mounting plate (22) of the measuring busbar (20) form a stack (40).

13. Electrical assembly (1) according to claim 12, wherein the mounting plate (15) of the intermediate connector (4), the mounting plate (12) of the electrical module (2) and the mounting plate (22) of the measuring busbar (20) are perforated and each have a mounting hole (55, 56, 57) arranged for the passage of a mounting element (45) of the electrical assembly.

14. A method for assembling an electrical assembly (1) according to any one of the preceding claims, comprising: a step of fixing the measuring omnibus bar (20) on the electronic board (7), a step of placing the electrical module (2) in contact with the measuring busbar (20), a step of placing the intermediate connector (4) in contact with the measuring busbar (20), a step of fixing the intermediate connector (4), the electrical module (2) and the measuring busbar (20) by the fixing component (45) and / or by welding.

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