Substrate for contacting at least one electrical pin of a charging inlet
A substrate for contacting an electrical pin arranged in a housing includes a base having a recess receiving the electrical pin, a metal leadframe having a contacting region electrically and/or thermally contacting the electrical pin, and a contact pin extending along a mating direction in a plane parallel to the metal leadframe and configured to electrically contact a mating contact pin of a mating connector. The metal leadframe is rigidly fixed to the base to prevent a relative movement between the metal leadframe and the substrate. The substrate is movable with respect to the housing along a locking direction from an unlocked position where the substrate is not locked to the housing to a locked position in which the substrate is locked to the housing. A movement of the contacting region with respect to the electrical pin is prevented in the locked position.
1. A substrate for contacting an electrical pin arranged in a housing, comprising:
a base having a recess receiving the electrical pin;
a metal leadframe having a contacting region electrically and/or thermally contacting the electrical pin, the metal leadframe is rigidly fixed to the base to prevent a relative movement between the metal leadframe and the substrate, the substrate is movable with respect to the housing along a locking direction from an unlocked position where the substrate is not locked to the housing to a locked position in which the substrate is locked to the housing, a movement of the contacting region with respect to the electrical pin is prevented in the locked position; and
a contact pin extending along a mating direction in a plane parallel to the metal leadframe and configured to electrically contact a mating contact pin of a mating connector.
2. The substrate of claim 1 , wherein the recess is an oblong recess having a longitudinal axis extending along the locking direction.
3. The substrate of claim 2 , wherein the contact pin protrudes outwardly from the substrate along the mating direction, the mating direction is perpendicular to the longitudinal axis of the recess.
4. The substrate of claim 1 , wherein a portion of the recess has a snap-fit fastening device engaging the electrical pin in the locked position.
5. The substrate of claim 4 , wherein the snap-fit fastening device is formed by a shoulder partially protruding from a lateral wall defining the recess and in a plane in which the substrate extends.
6. The substrate of claim 5 , wherein the shoulder defines a semi-circular notch having a complementary shape with respect to the electrical pin.
7. The substrate of claim 1 , wherein the recess is one of a plurality of recesses of the base each receiving an electrical pin, the recesses are each a through recess, a non-through recess, or an open recess with an open side forming a notch in the substrate.
8. The substrate of claim 1 , wherein the base is a plastic element overmolded on the metal leadframe.
9. The substrate of claim 1 , further comprising a snap-fit device engaged with a complementary retaining device of the housing in the locked position.
10. The substrate of claim 1 , wherein the contact pin is one of a plurality of contact pins in a group of the metal leadframe extending parallel to each other from a same side of the substrate.
11. The substrate of claim 10 , wherein the contact pins of the group are spaced apart by a predetermined pitch in the locking direction.
12. The substrate of claim 11 , wherein the recess is an oblong recess having a longitudinal axis extending along the locking direction, a longitudinal length of the recess along the longitudinal axis is proportional to the predetermined pitch.
13. An assembly, comprising:
a housing accommodating an electrical pin and having a mating opening receiving a mating contact pin of a mating connector in a mating direction; and
a substrate contacting the electrical pin arranged in the housing, the substrate including a base having a recess receiving the electrical pin, a metal leadframe having a contacting region electrically and/or thermally contacting the electrical pin, the metal leadframe is rigidly fixed to the base to prevent a relative movement between the metal leadframe and the base, and a contact pin extending along a mating direction in a plane parallel to the metal leadframe and configured to electrically contact the mating contact pin, the substrate is movable with respect to the housing along a locking direction from an unlocked position where the substrate is not locked to the housing to a locked position in which the substrate is locked to the housing, a movement of the contacting region with respect to the electrical pin is prevented in the locked position, the locking direction is perpendicular to the mating direction.
14. The assembly of claim 13 , wherein the contact pin is one of a plurality of contact pins in a group of the metal leadframe, and in both the unlocked position and the locked position, the mating opening of the housing faces the contact pins of the group.
15. The assembly of claim 14 , wherein the mating opening accommodates the mating connector, the mating contact pin is one of a plurality of mating contact pins of the mating connector, a number of the mating contact pins is at least one more than a number of the contact pins, the mating contact pins and the contact pins are each spaced apart by a same predetermined pitch.
16. The assembly of claim 13 , wherein, in the locked position, the substrate is snap-fitted to the housing by engagement of a snap-fit device of the substrate with a complementary retaining device of the housing.
17. The assembly of claim 13 , further comprising a cover attached to the housing by a snap-fit connection, the cover partially enclosing the substrate and having an aperture receiving a tool or a finger to move the substrate from the unlocked position to the locked position.
18. A method for forming an assembly, comprising:
mounting a substrate on a housing in an unlocked position, a contact pin of the substrate extends along a mating direction toward a mating opening of the housing;
moving the substrate with respect to the housing along a locking direction from the unlocked position to a locked position in which the substrate is locked to the housing, the locking direction is perpendicular to the mating direction; and
determining a position of the substrate with respect to the housing by:
introducing a test probe in the mating opening along the mating direction, the test probe having one more contact pin than a number of contact pins of the substrate facing the mating opening, the contact pins of the test probe and the substrate are spaced apart by a same predetermined pitch; and
detecting, electrically and/or mechanically, a position of a contact pin of the test probe that does not contact a corresponding contact pin of the substrate.
19. The method of claim 18 , further comprising, after the mounting step and prior to the moving step, attaching a cover to the housing by a snap-fit connection, the moving step including moving the substrate along the locking direction by inserting a tool or a finger through an aperture of the cover.