An electric control system of a crankshaft directly connected to a range-extended oil-cooled motor

CN224401308UActive Publication Date: 2026-06-23HARBIN DONGAN AUTO ENGINE CO LTD

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: HARBIN DONGAN AUTO ENGINE CO LTD
Filing Date: 2025-06-24
Publication Date: 2026-06-23

AI Technical Summary

Technical Problem

Existing crankshaft direct-drive motor control systems mostly use water-cooling solutions, which are less effective than oil-cooling solutions. This results in increased motor length, affecting space layout and increasing costs.

Method used

The crankshaft-direct-drive oil-cooled motor control system includes a sealing oil seal, a motor rotor bracket, motor rotor mounting screws, a crankshaft-direct-drive oil-cooled motor housing, and a crankshaft-direct-drive motor rear cover. It uses a mechanical oil pump and cooling oil pipes for oil cooling, and optimizes the cooling system by combining a large-size sealing oil seal and a specially structured motor rotor mounting screw.

Benefits of technology

It effectively compresses the axial dimension of the range extender, reduces the failure rate, optimizes the space layout, achieves cost reduction and energy saving, and improves the output efficiency of the motor system and powertrain.

✦ Generated by Eureka AI based on patent content.

Smart Images

Figure CN224401308U_ABST

Patent Text Reader

Abstract

A kind of crankshaft direct connection range extending oil-cooled motor electric control system, belong to the technical field of range extender assembly for new energy vehicle.It is used to install motor rotor for motor rotor support, motor rotor support is fixed on engine crankshaft by multiple motor rotor mounting screws, motor rotor support is arranged in the inside of crankshaft direct connection oil-cooled motor casing, the gap between crankshaft direct connection oil-cooled motor casing and motor rotor is sealed by sealing oil seal, the crankshaft direct connection oil-cooled motor casing is installed on the cylinder gantry of power input end engine, crankshaft direct connection motor rear cover is installed on the crankshaft direct connection oil-cooled motor casing.The two-in-one integrated crankshaft direct connection range extending oil-cooled motor of the utility model is compared with traditional motor, adopt more optimal cooling system scheme, effectively simplify motor and powertrain combined assembly process scheme, improve motor system and powertrain output efficiency, realize effective cost reduction, low carbon and energy saving, economic and practical can be adapted to more vehicle models.

Need to check novelty before this filing date? Find Prior Art