Shell assembly of hybrid power assembly

Abstract

The invention discloses a shell assembly of a hybrid power assembly. The shell assembly comprises a double-motor shell, a transmission shell and a double-inverter shell. The dual-motor shell is used for integrating a generator and a driving motor, the dual-motor shell comprises a motor main shell and a motor rear end cover, the motor rear end cover is connected with the rear end face of the motor main shell, the dual-motor shell comprises a generator cooling water channel and a driving motor cooling water channel, and the generator cooling water channel is connected with the driving motor cooling water channel in series; the transmission shell comprises a variable shell and a release shell, and the variable shell is connected with the front end face of the motor main shell; and the double-inverter shell is arranged above the double-motor shell. According to the shell assembly, the generator and the driving motor share the shell and the water channel, and the dual-motor shell and the transmission shell share the end cover, so that the structure of the shell assembly of the hybrid power assembly is more compact, and the shell assembly can meet the requirement of arranging a dual-motor hybrid power assembly with relatively high arrangement power is met on a precondition that a front engine room carries a four-cylinder engine.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a housing assembly of a hybrid powertrain. Background technique [0002] At present, the number of P1+P3 dual-motor hybrid powertrains launched on the market is gradually increasing, and the power of the motors continues to increase. However, due to the very limited horizontal layout space in the front cabin of traditional fuel vehicles, there are the following problems: [0003] 1) If the motor uses a water-cooling scheme, it is necessary to ensure that the power of the generator and the driving motor is large, and it is difficult to arrange the generator and the driving motor at the same time; if the layout of the front engine room is to be satisfied, the power of the generator and the drive motor in the front Restricted, or switch to a three-cylinder engine, the performance of the motor or engine cannot be considered; [0004] 2) If the motor uses an oil-cooled solution, ...

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Problems solved by technology

[0003]1) If the motor uses a water-cooling solution, it is necessary to ensure that the power of the generator and the driving motor is large, and it is difficult to arrange the generator and the driving motor at the same time; If the layout of the engine room is different, the power of the generator and drive motor in the front engine room may be limited, or a three-cylinder engine may be used instead, and the performance of the motor or engine may not be balanced;

[0004]2) If the motor uses an oil cooling solution, the volume reduction is beneficial to the layout of the front engine compartment to a certain extent, but the motor and the transmission gear share lubricating oil, in order to avoid the gear meshing operation The generated iron filings circulate to the motor, destroying the function of the motor. It is necessary to design a complex filtration system, and there are difficulties in after-sales maintenance; and the oil cooling technology will also increase the complex cooling structure, which will increase the development difficulty and cost.

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