Cooling and lubricating system for hybrid powertrain

A cooling and lubrication system for a hybrid powertrain that includes a drive motor, a reducer and a range extender, the cooling and lubrication system comprising:

• a water cooling module that includes a water inlet nozzle, a first water passage, a second water passage, an oil cooler and a water outlet nozzle connected in sequence, the first water passage being arranged on a housing of the drive motor, and the second water passage being arranged on a housing of the reducer;
• and
• an oil cooling module that includes an oil pump, a first oil delivery passage, a second oil delivery passage, a third oil delivery passage, a first oil return passage and a second oil return passage,
• wherein an oil inlet of the oil pump is communicated with a bottom of the housing of the reducer, an oil outlet of the oil pump is communicated with the oil cooler, the lubricating oil in the oil cooler is delivered into the housing of the reducer, the housing of the drive motor and the housing of the range extender respectively via the first oil delivery passage, the second oil delivery passage and the third oil delivery passage, the first oil return passage is arranged at the bottom of the housing of the drive motor, and the second oil return passage is arranged at the bottom of the housing of the range extender.