Driving device, sliding door and vehicle
By introducing a power-off brake into the vehicle's sliding door drive device and utilizing the magnetic field generating structure and friction disc assembly to generate braking force in the power-off state, the problem of the door being unable to hover is solved, and stable hovering in the power-off state is achieved, avoiding the power loss and heating risks of the electromagnetic clutch.
Patent Information
- Application Number
- CN202511001532.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-18
- Publication Date
- 2025-09-26
AI Technical Summary
The existing vehicle sliding door drive device cannot maintain hovering at any position when the power is off, causing the electromagnetic clutch to be powered on for a long time and lose power, and there is a risk of overheating and burning.
A power-off brake is used, including a magnetic field generating structure and a friction disc assembly. In the power-off state, the interaction between the magnetic field generating structure and the friction disc generates braking force, allowing the door to hover at any position. Combined with the guide mechanism and elastic parts, stable hovering is ensured.
The car door can be stably hovered in the power-off state, avoiding power loss and heating problems caused by long-term power supply of the electromagnetic clutch, and ensuring a safe and reliable hovering function.
Smart Images

Figure CN120701221A_ABST