Switch module for an inverter, inverter with several such switch modules and vehicle with the inverter

A switch module for an inverter for supplying electricity to an electric drive in an electric vehicle or hybrid vehicle, comprising:

• a high-side switch and a low-side switch, each of which has at least one semiconductor switch that are attached to a flat substrate;
• a DC input connection comprising a positive DC input contact and a negative DC input contact, wherein the DC input connection is configured to supply a DC input from a DC power source to the high-side switch and the low-side switch;
• an AC output connection configured to output an AC phase current of a multi-phase AC output, which is generated by activating the high-side switch and low-side switch on a basis of the DC input;
• a micro-heat sink comprising a coolant intake, a coolant outlet, and a connecting cooling channel structure between the coolant intake and the coolant outlet,
• wherein the micro-heat sink is configured to be releasably connected to at least one of a plurality of other micro-heat sinks, each of which are dedicated to one of a plurality of other switch modules in the inverter and can be releasably connected to one another for fluid exchange at their respective coolant intakes and/or coolant outlets,
• wherein the switch module further comprises a dedicated, separate intermediate circuit capacitor, and
• wherein the cooling channel structure extends directly along the intermediate circuit capacitor, between the substrate and the intermediate circuit capacitor.

A switch module for an inverter for supplying electricity to an electric drive in an electric vehicle or hybrid vehicle, comprising:

• a high-side switch and a low-side switch, each of which has at least one semiconductor switch that are attached to a flat substrate;
• a DC input connection comprising a positive DC input contact and a negative DC input contact, wherein the DC input connection is configured to supply a DC input from a DC power source to the high-side switch and the low-side switch;
• an AC output connection configured to output an AC phase current of a multi-phase AC output, which is generated by activating the high-side switch and low-side switch on a basis of the DC input;
• a micro-heat sink comprising a coolant intake, a coolant outlet, and a connecting cooling channel structure between the coolant intake and the coolant outlet,
• wherein the micro-heat sink is configured to be releasably connected to at least one of a plurality of other micro-heat sinks, each of which are dedicated to one of a plurality of other switch modules in the inverter and can be releasably connected to one another for fluid exchange at their respective coolant intakes and/or coolant outlets,
• wherein the switch module further comprises an AC busbar configured to convey the AC phase current to the electric drive of the electric vehicle or hybrid vehicle, and
• wherein the cooling channel structure extends directly along the AC busbar.