Motor control unit for double-sided heat dissipation of capacitor module, powertrain, and vehicle

A powertrain, wherein the powertrain comprises a motor and a motor control device for double-sided heat dissipation of a capacitor device, the motor control device is configured to drive the motor;

• wherein the motor control device comprises:
• a three-phase bridge arm, wherein the three-phase bridge arm comprises a plurality of power devices;
• the capacitor device, wherein the capacitor device comprises a capacitor housing and a capacitor core package, the capacitor housing is configured to accommodate the capacitor core package, and the capacitor housing comprises two coolant through holes;
• a liquid cooling radiator, wherein the liquid cooling radiator is configured to dissipate heat for the plurality of power devices, and the liquid cooling radiator comprises a heat dissipation cavity;
• and
• a control device housing, wherein:
• the control device housing is configured to accommodate the liquid cooling radiator and the capacitor housing, and the liquid cooling radiator and the capacitor housing are sequentially stacked on a bottom shell of the control device housing in a first direction;
• and
• the bottom shell of the control device housing comprises two coolant channels, and each coolant channel communicates with the heat dissipation cavity of the liquid cooling radiator through one coolant through hole.

A vehicle, wherein the vehicle comprises wheels and a powertrain, the powertrain is configured to drive the wheels;

• wherein the powertrain comprises a motor and a motor control device for double-sided heat dissipation of a capacitor device, the motor control device is configured to drive the motor;
• wherein the motor control device comprises:
• a three-phase bridge arm, wherein the three-phase bridge arm comprises a plurality of power devices;
• the capacitor device, wherein the capacitor device comprises a capacitor housing and a capacitor core package, the capacitor housing is configured to accommodate the capacitor core package, and the capacitor housing comprises two coolant through holes;
• a liquid cooling radiator, wherein the liquid cooling radiator is configured to dissipate heat for the plurality of power devices, and the liquid cooling radiator comprises a heat dissipation cavity;
• and
• a control device housing, wherein:
• the control device housing is configured to accommodate the liquid cooling radiator and the capacitor housing, and the liquid cooling radiator and the capacitor housing are sequentially stacked on a bottom shell of the control device housing in a first direction;
• and
• the bottom shell of the control device housing comprises two coolant channels, and each coolant channel communicates with the heat dissipation cavity of the liquid cooling radiator through one coolant through hole.