ELECTRONIC ASSEMBLY INCLUDING A CONNECTING FORK
An electronic assembly including at least one power electronics module including at least one connection pin such as an angled connection pin, and a printed circuit board including electrical connection tracks and at least one electrical connection port. An intermediate electrical connector is placed between the power electronics module and the printed circuit board. The intermediate electrical connector includes at least one connecting fork arranged to be hot-crimped onto the connection pin of the power electronics module, and at least one intermediate pin, electrically connected to the connecting fork, and configured to be inserted into the at least one electrical connection port of the printed circuit board.
1 . Electronic assembly including:
at least one power electronics module including at least one connection pin, notably an angled connection pin,
a printed circuit board including electrical connection tracks and at least one electrical connection port,
an intermediate electrical connector placed between the power electronics module and the printed circuit board, including:
at least one connecting fork arranged to be hot-crimped onto the connection pin of the power electronics module,
at least one intermediate pin, electrically connected to the connecting fork, and configured to be inserted into the at least one electrical connection port of the printed circuit board.
2 . Electronic assembly according to claim 1 , wherein the connecting fork is U-shaped, and includes two legs of length L spaced apart by a gap E, this gap E of the connecting fork enabling the fork to be hot-crimped onto the angled connection pin with a tolerance in the relative placement of the fork and the connection pin greater than or equal to 1 mm.
3 . Electronic assembly according to claim 1 , wherein the connecting fork, the intermediate pin and the connection pin are made of different copper alloys.
4 . Electronic assembly according to claim 1 , wherein the intermediate electrical connector includes a frame made of insulating material, notably plastic, and the connecting fork and the intermediate pin are permanently integrated in the frame.
5 . Electronic assembly according to claim 1 , wherein the intermediate pin has a press-fit geometry.
6 . Electronic assembly according to claim 1 , wherein the intermediate pin is electrically connected to an electrical track of the circuit board via a connection port of the printed circuit board by form-fitting and/or frictional locking and/or material locking.
7 . Electronic assembly according to claim 1 , including at least one cooling device, placed in thermal contact with at least one power electronics module.
8 . Electronic assembly according to claim 1 , wherein the connection pins of the power electronics modules are placed on lateral faces of the power electronics modules.
9 . Electronic assembly according to claim 1 , wherein each connection pin includes:
a horizontal portion substantially parallel to the upper face of the power electronics module,
a vertical portion, in a direction substantially normal to the upper face of the power electronics module,
an elbow connecting the horizontal portion and the vertical portion of the connection pin.
10 . Method of electrically interconnecting a power electronics module of an electronic assembly according to claim 1 with a printed circuit board of said electronic assembly, comprising the following steps:
a step of placing at least one connection pin of the power electronics module opposite at least one connecting fork of an intermediate electrical connector,
a step of hot crimping the at least one connecting fork on the at least one connection pin,
a step of placing the printed circuit board opposite the intermediate electrical connector, such that the electrical connection ports of the printed circuit board are positioned opposite the intermediate pins of the printed circuit board,
a step of force-fitting the intermediate pins of the intermediate electrical connector into the connection ports of the printed circuit board.
11 . Method according to claim 10 , wherein the hot-crimping step includes a step of heating the connecting fork, and a step of deforming the connecting fork, notably of deforming the legs of the connecting fork, so as to place the connecting fork in contact with the connection pin and secure the connecting fork and connection pin together.
12 . Electronic assembly according to claim 2 , wherein the connecting fork, the intermediate pin and the connection pin are made of different copper alloys.
13 . Electronic assembly according to claim 2 , wherein the intermediate electrical connector includes a frame made of insulating material, notably plastic, and the connecting fork and the intermediate pin are permanently integrated in the frame.
14 . Electronic assembly according to claim 2 , wherein the intermediate pin has a press-fit geometry.
15 . Electronic assembly according to claim 2 , wherein the intermediate pin is electrically connected to an electrical track of the circuit board via a connection port of the printed circuit board by form-fitting and/or frictional locking and/or material locking.
16 . Electronic assembly according to claim 2 , including at least one cooling device, placed in thermal contact with at least one power electronics module.
17 . Electronic assembly according to claim 2 , wherein the connection pins of the power electronics modules are placed on lateral faces of the power electronics modules.
18 . Electronic assembly according to claim 2 , wherein each connection pin includes:
a horizontal portion substantially parallel to the upper face of the power electronics module,
a vertical portion, in a direction substantially normal to the upper face of the power electronics module,
an elbow connecting the horizontal portion and the vertical portion of the connection pin.
19 . Method of electrically interconnecting a power electronics module of an electronic assembly according to claim 2 with a printed circuit board of said electronic assembly, comprising the following steps:
a step of placing at least one connection pin of the power electronics module opposite at least one connecting fork of an intermediate electrical connector,
a step of hot crimping the at least one connecting fork on the at least one connection pin,
a step of placing the printed circuit board opposite the intermediate electrical connector, such that the electrical connection ports of the printed circuit board are positioned opposite the intermediate pins of the printed circuit board,
a step of force-fitting the intermediate pins of the intermediate electrical connector into the connection ports of the printed circuit board.
20 . Electronic assembly according to claim 3 , wherein the intermediate electrical connector includes a frame made of insulating material, notably plastic, and the connecting fork and the intermediate pin are permanently integrated in the frame.