Disconnect module, power transmission system for a vehicle, synchronization mechanism for a vehicle and vehicle

A disconnect module for engaging and disengaging a first shaft with and from a first component, the disconnect module comprising:

• a connecting shaft arranged coaxially with the first shaft, a first end of the connecting shaft is rotatably supported on the first shaft, and a second end of the connecting shaft is fixedly connected to the first component;
• a sliding sleeve separately sleeved on outer sides of the first shaft and the connecting shaft, the sliding sleeve is rotatably and fixedly connected to the first shaft and is capable of reciprocating axially by an axial distance to engage with or disengage from the connecting shaft, the first shaft rotates together with the first component in an engaged state, the first shaft is independent of the first component in a disengaged state, and the sliding sleeve is provided with a circumferential groove open to an outside;
• an electric motor for outputting a torque;
• a speed reducer connected to the electric motor and comprising an output shaft;
• and
• a drive block fixedly connected to the output shaft and extending into the circumferential groove of the sliding sleeve to be driven by the speed reducer to rotate, thereby driving the sliding sleeve to reciprocate axially, a mechanical position-limiting mechanism is provided on the output shaft, so that the output shaft can only rotate by a set angle corresponding to the axial distance,
• wherein the speed reducer comprises a corresponding mechanism that cooperates with the mechanical position-limiting mechanism, one of the mechanical position-limiting mechanism and the corresponding mechanism is a protrusion, and the other is a recess allowing the protrusion to slide therein,
• wherein the speed reducer is a cycloidal gear speed reducer comprising:
• a housing;
• a cycloidal gear as an input shaft, wherein a plurality of transmission pins are provided on an end surface of the cycloidal gear;
• and
• a support plate for supporting the plurality of transmission pins, wherein the output shaft comprises a gear ring arranged around the cycloidal gear, and
• wherein the mechanical position-limiting mechanism is provided on a side of the gear ring facing the housing, and the corresponding mechanism is provided on the housing of the speed reducer.