Integrated water-cooled motor base for new energy electric vehicle

Abstract

The invention discloses an integrated water-cooled motor base for a new energy electric vehicle. The integrated water-cooled motor base comprises a shell (1), wherein a spiral water channel (2) is formed in the shell (1); the spiral water channel (2) and the shell (1) are integrally formed; a water inlet (3) and a water outlet (4) are formed in two ends of the outer surface of the shell (1) respectively; flow channels in the water inlet (3) and the water outlet (4) are tangent to the two ends of the spiral water channel (2) respectively. The integrated water-cooled motor base has the beneficial effects that the spiral water channel and inner and outer shells of the base are simultaneously cast without welding, and a finish machining process is directly carried out after casting is completed, so that the manufacturing cost is reduced, and the problems of water leakage caused by welding and poor appearance of the base in a welding structure caused by existence of welding seams are solved; the spiral water channel is in total contact with the shell, so that the heat transfer efficiency is high; the water resistance is further reduced, the energy of a vehicle-mounted battery can be saved, and the driving range of the electric vehicle is expanded.

Description

technical field [0001] The invention relates to the technical field of motor frame structures, in particular to an integrated water-cooled motor frame for new energy electric vehicles. Background technique [0002] In order to increase the power density of the motor, new energy electric vehicles often adopt a water-cooled structure. At present, most water-cooled machine bases adopt the following two structures: one is the axial waterway structure, and the other is the spiral waterway structure. The advantage of the axial waterway structure is that the amount of welding is small and the amount of processing is small; the disadvantage is that the water resistance is large during use. The spiral waterway structure has a large amount of welding and poor appearance, and its advantage is that the water resistance is small. Due to the limited capacity of the on-board battery, the spiral waterway structure should be preferred to save electric energy, but its poor appearance usuall...

AI Technical Summary

Problems solved by technology

Due to the limited capacity of the on-board battery, the spiral waterway structure should be preferred to save electricity, but its poor appearance usually limits the application of the spiral waterway structure

The processing of the traditional water-cooled machine base usually includes casting, processing, welding, and complex process flow. The spiral water channel for cooling is welded and connected with the machine base after separate processing. The welding volume is large, there are weld seams, the appearance quality is poor, and the welding process Water leakage problems often occur due to poor welding quality

The welded connection will also result in less contact area between the spiral waterway and the machine base, and low heat transfer efficiency

Images