An actuator capable of attaining high output. The actuator includes a frame structure part that forms a frame structure surrounding a housing part, and a volume change part housed in the housing part. The volume change part increases a volume thereof by input of external energy. The frame structure part has a higher Young's modulus than a Young's modulus of the volume change part. The housing part has an anisotropic shape, with a maximum width in first direction of the housing part longer than a maximum width in second direction different from the first direction of the housing part.

An actuator capable of attaining high output. The actuator includes a frame structure part that forms a frame structure surrounding a housing part, and a volume change part housed in the housing part. The volume change part increases a volume thereof by input of external energy. The frame structure part has a higher Young's modulus than a Young's modulus of the volume change part. The housing part has an anisotropic shape, with a maximum width in first direction of the housing part longer than a maximum width in second direction different from the first direction of the housing part.

The present invention relates to the field of 4D printing, and particularly to an electro-responsive folding and unfolding composite material for 4D printing, a method for manufacturing the same, and a method for regulating shape memory behavior thereof. In the process of layer-by-layer printing, conductive layers are embedded into a pre-designed shape memory polymer matrix through spray-coating and laser-irradiation nano-fusion welding, to manufacture a folding and unfolding structure with electro-responsive shape memory behavior. The distribution and range of heat affected zones in the electro-responsive shape memory folding and unfolding structure are controlled by adjusting the number of electric heating layers energized and the value of an energizing voltage. The speed of shape recovery and the degree of shape recovery of the structure are regulated according to a magnitude relationship between a shape recovery force F.sub.recovery and a resistance F.sub.resistance to shape recovery of the structure.

The present invention relates to the field of 4D printing, and particularly to an electro-responsive folding and unfolding composite material for 4D printing, a method for manufacturing the same, and a method for regulating shape memory behavior thereof. In the process of layer-by-layer printing, conductive layers are embedded into a pre-designed shape memory polymer matrix through spray-coating and laser-irradiation nano-fusion welding, to manufacture a folding and unfolding structure with electro-responsive shape memory behavior. The distribution and range of heat affected zones in the electro-responsive shape memory folding and unfolding structure are controlled by adjusting the number of electric heating layers energized and the value of an energizing voltage. The speed of shape recovery and the degree of shape recovery of the structure are regulated according to a magnitude relationship between a shape recovery force F.sub.recovery and a resistance F.sub.resistance to shape recovery of the structure.

Actuators (artificial muscles) comprising twist-spun nanofiber yarn or twist-inserted polymer fibers generate actuation when powered electrically, photonically, chemically, thermally, by absorption, or by other means. These artificial muscles utilize polymer fibers non-coiled or coiled yarns and can be either neat or comprising a guest. Devices comprising these artificial muscles are also described. In some embodiments, thermally-powered polymer fiber torsional actuator has a twisted, chain-oriented polymer fiber that has a first degree of twist at a first temperature and a second degree of twist at a second temperature in which the bias angles of the first degree and second degree of twist are substantially different.

Actuators (artificial muscles) comprising twist-spun nanofiber yarn or twist-inserted polymer fibers generate actuation when powered electrically, photonically, chemically, thermally, by absorption, or by other means. These artificial muscles utilize polymer fibers non-coiled or coiled yarns and can be either neat or comprising a guest. Devices comprising these artificial muscles are also described. In some embodiments, thermally-powered polymer fiber torsional actuator has a twisted, chain-oriented polymer fiber that has a first degree of twist at a first temperature and a second degree of twist at a second temperature in which the bias angles of the first degree and second degree of twist are substantially different.

The object is to provide an actuator that moves in a shearing direction. An actuator comprises an internal actuator including a first stator and a first mover opposed to the first stator, the first mover moving in a direction away from the first stator; a second stator having a fixation wall that is disposed in a direction in which the first stator and the first mover are opposed to each other and that is disposed along a first mover side and away from the first mover, the second stator being fixed with the first stator; and a second mover having a pressing wall inserted between the first mover and the fixation wall.

The object is to provide an actuator that moves in a shearing direction. An actuator comprises an internal actuator including a first stator and a first mover opposed to the first stator, the first mover moving in a direction away from the first stator; a second stator having a fixation wall that is disposed in a direction in which the first stator and the first mover are opposed to each other and that is disposed along a first mover side and away from the first mover, the second stator being fixed with the first stator; and a second mover having a pressing wall inserted between the first mover and the fixation wall.

Disclosed are a drive structure for an OIS motor, an OIS motor, and a camera device. The key points of technical solutions are: a drive structure for an OIS motor includes a base, a conductive layer, a spring, and four SMA wires, the base is made of an insulating material, the conductive layer is disposed in the base, and terminals of the conductive layer protrude from the surface of the base; the base is provided with two first crimpers electrically connected to the conductive layer and disposed opposite to each other, the spring is provided with two second crimpers disposed opposite to each other, the four SMA wires are uniformly distributed on four sides of the base, and two ends of the SMA wires are respectively connected to the corresponding first crimpers and second crimpers.

Disclosed are a drive structure for an OIS motor, an OIS motor, and a camera device. The key points of technical solutions are: a drive structure for an OIS motor includes a base, a conductive layer, a spring, and four SMA wires, the base is made of an insulating material, the conductive layer is disposed in the base, and terminals of the conductive layer protrude from the surface of the base; the base is provided with two first crimpers electrically connected to the conductive layer and disposed opposite to each other, the spring is provided with two second crimpers disposed opposite to each other, the four SMA wires are uniformly distributed on four sides of the base, and two ends of the SMA wires are respectively connected to the corresponding first crimpers and second crimpers.