Motorized blind and manual switching clutch structure thereof

A motorized blind, comprising:

• a blind assembly, comprising a headrail, a bottom rail, and a covering material connected between the headrail and the bottom rail;
• a spring power module, disposed in the bottom rail and participating in movement of the bottom rail;
• an electric motor module, comprising a motor shaft for driving the spring power module to drive the bottom rail to move;
• and
• a manual switching clutch structure, disposed in the bottom rail, comprising:
• a clutch rod, having a first end and a second end, and rotatable around a longitudinal axis thereof;
• an input member, fixedly connected with the clutch rod as being fitted on the clutch rod and close to the first end of the clutch rod, the input member comprising a first clutch portion extending along the longitudinal axis of the clutch rod and extending towards the second end of the clutch rod, wherein the input member is engaged with the motor shaft of the electric motor module;
• an output member, fitted on the clutch rod and close to the second end of the clutch rod, and rotatable relative to the clutch rod, the output member comprising a second clutch portion extending along the longitudinal axis of the clutch rod and extending towards the first end of the clutch rod, wherein the second clutch portion is opposing to the first clutch portion, and the output member is engaged with the spring power module;
• and
• a knob, comprising a first surface, an outer peripheral wall, a high-end portion and a low-end portion, wherein the first surface faces the output member, and the high-end portion and the low-end portion radially extend from the outer peripheral wall, wherein the high-end portion is closer to the first surface than the low-end portion, and the high-end portion and the low-end portion are respectively configured to be in contact with the second end of the clutch rod;
• when either the high-end portion or the low-end portion is in contact with the second end of the clutch rod, the other one of the high-end portion and the low-end portion is not in contact with the second end of the clutch rod;
• wherein when the knob is configured as the low-end portion in contact with the second end of the clutch rod, the first clutch portion of the input member is engaged with the second clutch portion of the output member, and the electric motor module participates in the movement of the bottom rail by driving the spring power module;
• when the knob is configured as the high-end portion in contact with the second end of the clutch rod, the first clutch portion of the input member is disengaged from the second clutch portion of the output member, and the spring power module individually participates in the movement of the bottom rail.

A motorized blind, comprising:

• a blind assembly, comprising:
• a headrail;
• a bottom rail;
• a covering material, connected between the headrail and the bottom rail;
• and
• a lifting cord, having a first end and a second end, wherein the first end of the lifting cord is connected to the headrail, and the second end of the lifting cord passes the covering material and enters the bottom rail;
• a spring power module, disposed in the bottom rail, comprising:
• a pulley assembly, comprising a fixed seat fixed within the bottom rail and a sliding seat movable relative to the bottom rail, wherein the lifting cord goes around between the fixed seat and the sliding seat after entering the bottom rail, and the second end of the lifting cord is fixed to one of the fixed seat and the sliding seat;
• a reel, disposed in the bottom rail and rotatable relative to the bottom rail;
• a transmission cord, connected between the sliding seat of the pulley assembly and the reel;
• and
• an automatic winding assembly, comprising a spiral spring and in mechanical synchronization with the reel, wherein the spiral spring performs one of releasing energy and accumulating energy along with rotation of the reel;
• an electric motor module, disposed in the bottom rail and comprising a motor shaft;
• and
• a manual switching clutch structure, disposed in the bottom rail, comprising an input member connected to the motor shaft of the electric motor module and an output member connected to the automatic winding assembly;
• wherein when the input member and the output member are configured as connected to each other in a concurrently rotatable manner, the automatic winding assembly is drivable by the electric motor module for configuring the reel to perform one of retracting the transmission cord and releasing the transmission cord, and driving the sliding seat of the pulley assembly to move in the bottom rail, such that a length of the lifting cord within the bottom rail is adjusted for moving the bottom rail;
• wherein when the electric motor module drives the reel to retract the transmission cord, the spiral spring is made to release energy concurrently;
• when the electric motor module drives the reel to release the transmission cord, the spiral spring is made to accumulate energy concurrently;
• wherein when the input member and the output member are configured as being unable to be driven by each other, the transmission cord is configured by changing a position of the bottom rail to perform one of being released from the reel and being wound onto the reel by the automatic winding assembly, such that the length of the lifting cord within the bottom rail is changed.