A sliding device for a vehicle door includes a lower rail extending straightly and mounted on an exterior of a vehicle. A lower slider is coupled to the lower rail to move along the lower rail. A gear device is mounted on the lower slider to move with the lower slider. A linkage has one end connected to the gear device to transmit a torque and another end rotatably engaged with a lower portion of the vehicle door.

A sliding device for a vehicle door includes a lower rail extending straightly and mounted on an exterior of a vehicle. A lower slider is coupled to the lower rail to move along the lower rail. A gear device is mounted on the lower slider to move with the lower slider. A linkage has one end connected to the gear device to transmit a torque and another end rotatably engaged with a lower portion of the vehicle door.

An electrically driven sliding window for vehicle and a vehicle include a window aperture, guide rails, bases, slide blocks, a movable glass unit and an electric drive mechanism, the guide rails are provided on two opposite sides of the window aperture respectively, the slide block includes a base mating portion and a guide rail mating portion, the slide block is slidably mounted on a base via the base mating portion and is mounted on a guide rail via the guide rail mating portion, the movable glass unit is fixed on the bases, and the slide blocks are slidable along the guide rails and are slidable relative to the bases by means of the electric drive mechanism, to drive the bases to perform a sliding movement parallel to a direction of the guide rails and a movement for alignment perpendicular to the direction of the guide rails.

An embodiment is a vehicle door opening and closing apparatus including a vehicle door configured to be selectively opened and closed in a mode of a sliding mode and a swing mode to uncover and cover a door opening of a vehicle body. The vehicle door opening and closing apparatus further including a rail mounted on the vehicle body, a roller unit including a roller and a hinge element, the roller being configured to be guided along the rail, the hinge element being spaced apart from the roller, a door-side bracket mounted on the vehicle door, the door-side bracket being detachably connected to the roller unit, and a body-side bracket mounted on the vehicle body, the body-side bracket being detachably connected to the roller unit.

An embodiment is a vehicle door opening and closing apparatus including a vehicle door configured to be selectively opened and closed in a mode of a sliding mode and a swing mode to uncover and cover a door opening of a vehicle body. The vehicle door opening and closing apparatus further including a rail mounted on the vehicle body, a roller unit including a roller and a hinge element, the roller being configured to be guided along the rail, the hinge element being spaced apart from the roller, a door-side bracket mounted on the vehicle door, the door-side bracket being detachably connected to the roller unit, and a body-side bracket mounted on the vehicle body, the body-side bracket being detachably connected to the roller unit.

A refrigerator includes: a cabinet; a drawer door assembly including a front panel door part and a drawer part that defines an accommodation space; a rail that movably configured to connect the drawer door assembly to the cabinet and enable the drawer door assembly to insert into and withdraw from the cabinet; a driving device located at the front panel door part and configured to provide power; and an elevation device located in the drawer part and configured to be coupled to the driving device and elevate a portion of the drawer part relative to the front panel door part. The driving device includes: a motor assembly configured to provide driving force; a screw assembly configured to perform an elevation operation based on the driving force; and a lever that connects the screw assembly to the elevation device and that is configured to rotate based on the elevation operation.

A refrigerator includes: a cabinet; a drawer door assembly including a front panel door part and a drawer part that defines an accommodation space; a rail that movably configured to connect the drawer door assembly to the cabinet and enable the drawer door assembly to insert into and withdraw from the cabinet; a driving device located at the front panel door part and configured to provide power; and an elevation device located in the drawer part and configured to be coupled to the driving device and elevate a portion of the drawer part relative to the front panel door part. The driving device includes: a motor assembly configured to provide driving force; a screw assembly configured to perform an elevation operation based on the driving force; and a lever that connects the screw assembly to the elevation device and that is configured to rotate based on the elevation operation.

A refrigerator includes: a cabinet; a drawer door assembly including a front panel door part and a drawer part that defines an accommodation space; a rail that movably configured to connect the drawer door assembly to the cabinet and enable the drawer door assembly to insert into and withdraw from the cabinet; a driving device located at the front panel door part and configured to provide power; and an elevation device located in the drawer part and configured to be coupled to the driving device and elevate a portion of the drawer part relative to the front panel door part. The driving device includes: a motor assembly configured to provide driving force; a screw assembly configured to perform an elevation operation based on the driving force; and a lever that connects the screw assembly to the elevation device and that is configured to rotate based on the elevation operation.

A refrigerator includes: a cabinet; a drawer door assembly including a front panel door part and a drawer part that defines an accommodation space; a rail that movably configured to connect the drawer door assembly to the cabinet and enable the drawer door assembly to insert into and withdraw from the cabinet; a driving device located at the front panel door part and configured to provide power; and an elevation device located in the drawer part and configured to be coupled to the driving device and elevate a portion of the drawer part relative to the front panel door part. The driving device includes: a motor assembly configured to provide driving force; a screw assembly configured to perform an elevation operation based on the driving force; and a lever that connects the screw assembly to the elevation device and that is configured to rotate based on the elevation operation.

An electrically driven sliding window for vehicle and a vehicle include a window aperture, guide rails, bases, slide blocks, a movable glass unit and an electric drive mechanism, the guide rails are provided on two opposite sides of the window aperture respectively, the slide block includes a base mating portion and a guide rail mating portion, the slide block is slidably mounted on a base via the base mating portion and is mounted on a guide rail via the guide rail mating portion, the movable glass unit is fixed on the bases, and the slide blocks are slidable along the guide rails and are slidable relative to the bases by means of the electric drive mechanism, to drive the bases to perform a sliding movement parallel to a direction of the guide rails and a movement for alignment perpendicular to the direction of the guide rails.