Electric machine having electrical buss and manufacturing method therefor
View Patent ↗An electric machine including a stator, a rotor surrounded by and rotatable relative to the stator, a supply terminal assembly, and an electronic module electrically connected to the stator. The electronic module includes a terminal having at least one bonding region. An electrical buss is attached to the supply terminal assembly, and includes a first and second conductor portions each having a connection region joined to a bonding region of the terminal of the electronic module. The terminal of the electronic module is electrically connected to the supply terminal assembly by the first and second conductor portions. Also disclosed is a method for manufacturing such an electric machine.
1. An electric machine comprising:
a stator;
a rotor surrounded by the stator and being rotatable relative to the stator;
a supply terminal assembly;
an electronic module electrically connected to the stator and including a terminal having at least one bonding region; and
an electrical buss attached to the supply terminal assembly, the electrical buss including:
a first conductor portion having a connection region joined to a bonding region of the terminal of the electronic module, and
a second conductor portion having a connection region joined to the bonding region of the terminal of the electronic module, the terminal of the electronic module electrically connected to the supply terminal assembly by the first and second conductor portions.
2. The electric machine of claim 1 , wherein the connection region of the first conductor portion and the connection region of the second conductor portion are respectively affixed to a bonding region of the terminal of the electronic module.
3. The electric machine of claim 1 , wherein the buss further comprises a terminal contact portion disposed between the first conductor portion and the second conductor portion, the terminal contact portion attached to the supply terminal assembly.
4. The electric machine of claim 3 , wherein the terminal contact portion is configured to at least partially surround a supply voltage post of the supply terminal assembly.
5. The electric machine of claim 1 , wherein the connection region of the first conductor portion is parallel to the connection region of the second conductor portion.
6. The electric machine of claim 1 , wherein the terminal of the electronic module is disposed between the connection region of the first conductor portion and the connection region of the second conductor portion.
7. The electric machine of claim 6 , wherein the connection region of the first conductor portion includes a flattened contact region and the connection region of the second conductor portion includes a flattened contact region, each flattened contact region adapted to respectively abut a bonding region of the terminal of the electronic module with surface-to-surface contact.
8. The electric machine of claim 1 , wherein the first conductor portion and the second conductor portion each have a conductor section having a first cross-sectional shape and the connection regions of the first conductor portion and the second conductor portion have respective cross-sectional shapes that differ from the first cross-sectional shape.
9. The electric machine of claim 8 , wherein the first cross-sectional shape is substantially circular and the cross-sectional shapes of the connection regions each have a flat portion defined by a flattened contact region adapted to respectively abut a bonding region of the terminal of the electronic module with surface-to-surface contact.
10. The electric machine of claim 1 , wherein the first and second conductor portions are formed from a unitary elongate metallic conductor.