Sealing water cooling structure for motor shell

Abstract

The invention relates to a sealing water cooling structure for a motor shell, which comprises an integrally formed shell with a speed reducer box part and a motor box part. The motor box part is separated from the speed reducer box part by an arranged separation wall; a motor front bearing seat is arranged on the separation wall; a positioning flange protruding outwards is formed at one end of themotor box part, which is adjacent to the speed reducer box part; a part between the positioning flange and a motor box part circumference outer wall section of a motor box part port end is a waterwaydisposing part; a spiral waterway groove surrounding the circumference is formed on the outer surface of the waterway disposing part; a waterway sealing jacket sleeves the waterway disposing part inan interference fit mode; one end of the waterway sealing jacket is positioned by the positioning flange; a matching seam of the waterway sealing jacket and the positioning flange is sealed by welding, and a matching seam of the other end of the waterway sealing jacket and the waterway disposing part port end is sealed by welding, so that the spiral waterway groove forms a closed cooling waterway;a water inlet and a water outlet are respectively formed on the side wall of the waterway sealing jacket; and a plurality of heat dissipation ribs are arranged on the outer wall surface of the waterway sealing jacket.

Description

technical field [0001] The invention relates to a water cooling structure, in particular to a water cooling sealing structure of a motor casing. Background technique [0002] At present, in the existing water-cooled sealing structure of the motor casing, the outer water jacket and the inner water jacket are formed by casting respectively. Since the main structure of the water channel is integrated on the inner water jacket, the outer water jacket is fixed on the motor casing. , the structure is very complex, especially in the all-in-one powertrain products, the structure of the outer water jacket is more complicated. Therefore, under the condition that different OEMs have different requirements for the peripheral envelope of the same platform product, it is necessary to redesign the outer water jacket. It becomes very difficult, which makes the adaptability of the product poor, which brings huge mold opening costs, and the mold is too complicated, which makes casting difficu...

AI Technical Summary

Problems solved by technology

[0002] At present, in the existing water-cooled sealing structure of the motor casing, the outer water jacket and the inner water jacket are formed by casting respectively. Since the main structure of the water channel is integrated on the inner water jacket, the outer water jacket is fixed on the motor casing. , the structure is very complex, especially in the all-in-one powertrain products, the structure of the outer water jacket is more complicated. Therefore, under the condition that different OEMs have different requirements for the peripheral envelope of the same platform product, it is necessary to redesign the outer water jacket. It becomes very difficult, which makes the adaptability of the product poor and brings huge mold opening costs, and the mold is too complicated and casting is difficult

In addition, sealing rings are usually used for waterway sealing in the sealing structure. This sealing method is prone to problems such as aging and failure of the sealing rings, easy damage of the sealing rings during installation, and poor integrity of the inner and outer water jackets.

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