一种冷却介质流通构件和电机
By using a cooling medium flow component in the motor, the Laval effect is utilized to accelerate the cooling medium and direct it toward the rotor shaft cooling cavity, thus solving the problem of poor rotor shaft cooling effect. This achieves earlier cooling and a larger cooling area, improving heat dissipation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- VITESCO AUTOMOTIVE ELECTRONICS (CHANGCHUN) CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-07-17
AI Technical Summary
The existing motor rotor shaft cooling effect is not good, especially the cooling oil fails to cool down in time after entering the rotor shaft cavity, resulting in unsatisfactory heat dissipation.
A cooling medium flow component is adopted, which utilizes the Laval effect to pressurize and accelerate the cooling medium through the pressurization section and the outflow section. The outflow outlet is set towards the cooling cavity of the rotor shaft, so that the cooling medium can reach the inner wall of the rotor shaft for cooling and heat dissipation earlier, eliminating the cooling dead zone.
It improves the cooling effect of the cooling medium, increases the cooling area, achieves better heat dissipation, and eliminates the cooling dead zone of the rotor shaft.
Smart Images
Figure CN224520798U_ABST
Abstract
Claims
1. A cooling medium flow passage member characterized by comprising: include: An inflow section, one end of which is provided with an inlet; A pressurizing section, which is connected to the other end of the inflow section; The outlet section has one end connected to the pressurization section and the other end of the outlet section is provided with an outlet. The outlet is used for the cooling chamber of the rotor shaft facing the outside. The extension direction of the side wall of the outlet section intersects with the axial direction.
2. The cooling medium flow passage member according to claim 1, wherein The pressurizing section has a first end and a second end. The first end of the pressurizing section is provided with a medium inlet, which is connected to the inflow section. The second end of the pressurizing section is provided with a medium outlet. The pressurizing section and the outflow section share the medium outlet. The medium outlet is connected to the pressurizing section and the outflow section. The cross-sectional area of the medium outlet is smaller than the cross-sectional area of the medium inlet, and the cross-sectional area of the outflow section is larger than the cross-sectional area of the medium outlet.
3. The cooling medium flow passage member according to claim 2, wherein Along the extending direction of the pressurizing section, the cross-sectional area of the pressurizing section gradually decreases, while along the extending direction of the outflow section, the cross-sectional area of the outflow section gradually increases.
4. The cooling medium flow passage member according to claim 2 or 3, characterized in that, The length of the pressurization section is greater than the length of the outflow section.
5. The cooling medium flow passage member according to any one of claims 2 to 4, characterized in that, The cross-section of the pressurizing section is trapezoidal, and the cross-section of the outflow section is trapezoidal.
6. The cooling medium flow passage member according to claim 1, wherein The angle between the extending direction of the sidewall of the outflow portion and the axial direction is an acute angle.
7. The cooling medium flow passage member according to claim 1, wherein It also includes an inflow channel, which is connected to the inner wall of the inflow inlet and communicates with the inflow section.
8. The cooling medium flow passage member according to claim 7, wherein The inflow channel is threadedly connected to the inner wall of the inflow inlet.
9. An electric machine characterized by The motor includes: The cooling medium flow member according to any one of claims 1 to 8; The rotor shaft has a cooling cavity, one end of the rotor shaft is connected to the cooling medium flow member, the cooling medium flow member communicates with the cooling cavity, and the outlet is disposed towards the cooling cavity of the rotor shaft.