一种一体式外转子机壳、成型装置
By using an integrated outer rotor housing design and molding device, the coaxiality deviation problem between the outer rotor housing and the output shaft in traditional dual rotor motors is solved, thereby improving the stability of the outer rotor output, simplifying assembly, and enhancing the motor's heat dissipation performance and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUZHOU YONGCHANG BEISHITUO ELECTRIC APPLIANCE INDAL
- Filing Date
- 2025-04-24
- Publication Date
- 2026-07-17
AI Technical Summary
The assembly method of the outer rotor housing and output shaft in traditional twin-rotor motors leads to coaxiality deviation, which affects output stability. In addition, the existing technology requires the pulley to be installed first and then the belt, which increases the assembly complexity and potential coaxiality deviation problems.
The machine adopts an integrated external rotor housing design, with the output shaft and the main body of the housing integrally formed. A transmission groove is set in the output shaft, eliminating the need for pulley assembly. The integrated external rotor housing is directly manufactured through a molding device, ensuring high coaxiality and stability.
It improves the stability of the external rotor output, reduces the risk of coaxiality deviation during operation, simplifies the assembly process, and enhances the motor's heat dissipation performance and production efficiency.
Smart Images
Figure CN224520817U_ABST
Abstract
Claims
1. An integrated outer rotor housing characterized by, The device includes a main housing part (311), an output shaft part (312) coaxially arranged with the main housing part (311), and a transition part (313) connecting the main housing part (311) and the output shaft part (312). The outer circumferential surface of the output shaft part (312) is provided with a plurality of transmission grooves (3122) coaxially arranged therewith. The transition part (313) is provided with a plurality of heat dissipation holes (314) arranged in a circle around the central axis of the main housing part (311). The inner wall of the main housing part (311) is provided with a plurality of magnet mounting grooves (3111). The center of the output shaft part (312) has a through bearing mounting hole, and the inner wall of the bearing mounting hole is provided with a bearing blocking ring part (3121).
2. A molding apparatus for manufacturing the one-piece outer rotor housing as set forth in claim 1, characterized by, It includes a molding cylinder (91), and the molding cylinder (91) is provided with a molding cavity (911) that matches the shape of the outer rotor housing. The molding cylinder (91) is also connected to an injection head (92) and an exhaust head (93) that communicate with the molding cavity (911).
3. A forming device according to claim 2, wherein The forming cylinder (91) comprises: The cylinder cover (913) and the cylinder bottom plate (914) are respectively provided with a core part one (915) and a core part two (916). The core part one (915) and the core part two (916) form a core for forming the inner surface shape of the integrated outer rotor housing. The top edge of the core part one (915) is provided with a notch ring (9151) for forming the bearing blocking ring part (3121). The core part one (915) is also provided with a column part (9152) for forming the heat dissipation hole (314). The die (912) is disposed between the cylinder cover (913) and the cylinder bottom plate (914) and is used to form the outer surface shape of the integral outer rotor housing. The upper and lower surfaces of the die (912) are detachably connected to the cylinder cover (913) and the cylinder bottom plate (914) respectively. The die (912) is composed of two half die (9121) units.