72results about "Thermal electric motor" patented technology

An actuator having a composition gradient defining a first coefficient of thermal expansion and a second coefficient of thermal expansion that differs from the first coefficient of thermal expansion; and a thermoelectric junction operationally coupled to the composition gradient, wherein the composition gradient is formed of either of a plurality of dissimilar metals or of plastic with fillings or fibers.

An actuator assembly comprising: a support structure (4) comprising a first printed circuit board, PCB (10); an image sensor assembly (12) comprising a second PCB (9) and an image sensor (6) having a light-sensitive region (7), wherein the image sensor assembly (12) is supported on the support structure (4) to allow movement of the image sensor assembly (12) relative to the support structure (4); and an electrical interconnector (51) configured to electrically connect the first PCB (10) to the second PCB (9); wherein the first PCB (10) and the second PCB overlap (9) when viewed along at least one direction in the plane in which the first PCB (10) extends.

The invention relates to the technical field of driving, and discloses a control method, equipment and a readable storage medium. According to the method, when the electronic equipment detects that at least one actuating wire of the SMA motor is disconnected, the electronic equipment can control the carrier of the SMA motor to move relative to the fixed part through at least part of actuating wires (hereinafter referred to as target actuating wires) in the undisconnected actuating wires, the resultant force direction of the target actuating line acting on the carrier is the same as the direction of driving the carrier to move. Thus, even if an actuating line in the SMA motor in the electronic equipment is disconnected, the electronic equipment can drive the carrier to move through the undisconnected actuating line.

The invention provides a cross-linking agent-free liquid crystal elastomer synthesis method, a liquid crystal elastomer and a body temperature driven actuator, the liquid crystal elastomer with polymer chains aligned is prepared according to the cross-linking agent-free liquid crystal elastomer synthesis method, the energy storage modulus of the liquid crystal elastomer is 0.1-1 MPa, and the liquid crystal elastomer is a liquid crystal elastomer with polymer chains aligned. And the temperature TNI of the nematic phase to the isotropic phase of the liquid crystal elastomer is 60-62 DEG C. The actuator comprises the liquid crystal elastomer and a polyimide film, the liquid crystal elastomer is located on the surface of the polyimide film, and the polyimide film is bent through deformation of the liquid crystal elastomer. The polyimide film serves as a restraint layer and is used for enabling the liquid crystal elastomer to elastically reset. The liquid crystal elastomer can be driven by body temperature to deform.

Provided are a shape-variable electronic device and an operation method of the same. More specifically, the shape-variable electronic device includes a substrate having a cell region, a light source on the cell region, a flexible layer provided vertically spaced apart from the light source part, a chamber between the light source part and the flexible layer, and a pressure control unit configured to adjust an internal pressure of the chamber. The flexible layer includes a photo-thermal response part configured to emit thermal energy by receiving light emitted from the light source part, and a deformation part of which mechanical stiffness is decreased by receiving the thermal energy from the photo-thermal response part.

A linear drive comprises: a lever having a through bore; a rod which extends through the bore; a bearing supporting the rod; a shape memory alloy connected to the lever and a first fixed bearing, the shape memory alloy exerting a tensile force on the lever when electrical power is applied; and a restoring element connected to the lever and a second fixed bearing, the restoring element exerting a restoring force on the lever and counter to the tensile force. In a first state, the lever is tilted making a non-positive connection between the lever and the rod. In a second state the lever is displaced in parallel to and in the direction of the tensile force. In a third state the lever is tilted back releasing the non-positive connection. In a fourth state, the lever is displaced in parallel to and in the direction of the restoring force.

The present invention discloses an underground microwave heating device and a working method thereof that uses thermoelectric materials for self-power supply. The power generation tube includes an insulating protection tube and a power generation unit. The P-type and N-type thermoelectric crystals of the power generation unit are arranged in the inner cavity of the insulating protection tube; the power conversion device is connected to the microwave transmitting device; when one power generation tube is used, the slips and the microwave transmitting device are respectively arranged at the two ends of the insulating protection tube, and several power generation units connected in series are connected to the power conversion device; when more than two power generation tubes are used, the insulating protection tubes of each power generation tube are sequentially connected into a row through an elastic structure, the slips are arranged on the insulating protection tube of the power generation tube at the head end, the microwave transmitting device is arranged on the insulating protection tube of the power generation tube at the end, the power generation units of all the power generation tubes are connected in series, and all the power generation units connected in series are connected to the power conversion device. The present invention can realize self-power supply by utilizing the temperature gradient of the bottom layer, without the need to additionally set up ground power generation equipment.

Actuators (artificial muscles) comprising twisted polymer fibers generate actuation when powered thermally. In some embodiments, the thermally-powered polymer fiber actuator can be incorporated into an article, such as a textile or garment.

The thermal response driver comprises a shell, a thermal expansion material, a piston and a sealing assembly. The shell comprises a shell containing cavity and an opening communicated with the shell containing cavity. A thermal expansion material is contained in the housing cavity. The piston at least partially extends into the housing cavity from the opening. The sealing assembly comprises a cover device and a sealing device, the sealing assembly is attached to the shell at the opening, and the sealing assembly covers the opening and is arranged around the piston. The sealing device comprises a first sealing piece and a second sealing piece. One or both of the housing and the cover device define a first accommodation portion and a second accommodation portion, where the first accommodation portion and the second accommodation portion are separated from each other by the cover device in an axial direction of the thermally responsive driver to independently accommodate at least a portion of the first seal and at least a portion of the second seal, respectively. According to the thermal response driver, the sealing assembly with the two sealing pieces is provided, the containing part separated by the rigid cover device is provided for the two sealing pieces, and the good sealing effect can be obtained.

This embodiment relates to shape memory alloy (SMA) actuator designs that may have custom-sized SMA filament lengths and / or brackets specific to different systems (e.g., optical image stabilization systems, autofocus systems). The actuator may include a universal base (or fixed end) and a universal end portion (or free end), both of which are interchangeable in different SMA designs.

To provide a device and a method for vibration-free cryogenic cooling, suitable for transmission electron microscopes (TEM) and other analytical instruments.SOLUTION: A device includes a thermal reservoir adapted to be positioned outside a sample chamber, and a longitudinal member extending from the thermal reservoir into the sample chamber and flexibly couplable to a sample holder within the sample chamber.SELECTED DRAWING: Figure 1

The invention relates to a magnetocaloric generator (1) comprising a set of porous active elements (2) based on MMC materials, and a magnetic arrangement (3). The magnetic arrangement (3) comprises two superposed magnetic rotors, including an external magnetic rotor (4) and an internal magnetic rotor (5) delimiting an air gap (E) between them and comprising the same number of magnetic poles (PM). The set of active elements (2) comprises a stator (30) arranged in the air gap (E). The active elements (2) extend axially in the stator (30) so as to allow a bidirectional axial flow of a heat-transfer medium between a hot end (EC) and a cold end (EF) of the generator. The external magnetic rotor (4) is advantageously coupled, on the one hand, to an electric machine (9) by a mechanical coupling and, on the other hand, to the internal magnetic rotor (5) by a magnetic coupling, such that the rotors move in the same direction of rotation and are magnetically synchronous.

To provide optical image stabilization (OIS) suspensions that are highly functional, robust and efficient to manufacture.SOLUTION: A suspension assembly 114 includes: a static member 124 or static plate; a movable member 122 or movable plate movable about an x-axis and a y-axis with respect to the static plate; a sensor mounting region on the movable plate; and one or more shape memory alloy (SMA) elements extending between and coupled to the static plate and movable plate. The SMA elements, when driven by a controller, move the movable plate and the sensor mounting region thereon about the x-axis and the y-axis with respect to the static plate.SELECTED DRAWING: Figure 1

An energy generation device Including: a surface for supporting movement of a work material, and an energy converter. The surface is operable to induce movement of the work material relative to the surface. The energy converter is arranged to generate electrical energy based on the induced movement of the work material relative to the surface.

Provided are a shape-variable electronic device and an operation method of the same. More specifically, the shape-variable electronic device includes a substrate having a cell region, a light source on the cell region, a flexible layer provided vertically spaced apart from the light source part, a chamber between the light source part and the flexible layer, and a pressure control unit configured to adjust an internal pressure of the chamber. The flexible layer includes a photo-thermal response part configured to emit thermal energy by receiving light emitted from the light source part, and a deformation part of which mechanical stiffness is decreased by receiving the thermal energy from the photo-thermal response part.

The present invention provides a variable speed and variable torque SMA motor, which includes: a control system; a drive unit array, wherein the drive unit array is connected to the control system through an SMA memory alloy wire, wherein the SMA memory alloy wire is energized, the SMA memory alloy wire contracts, and the drive unit array drives the power output device to move; after power failure, the SMA memory alloy wire extends, and the power output device rotates in the opposite direction and returns to the initial position. The control system can arbitrarily control the working mode of the drive unit array, and the control system can allow multiple drive unit arrays to work at the same time, which can improve the output torque of the power output device; when the drive unit array is started in series, since it takes a certain amount of time for the SMA memory alloy wire to cool, the next drive unit is operated during the cooling period of the previous SMA memory alloy wire, so that the speed of the power output device can be greatly improved, and the flexibility of use is greatly improved.

A liquid sensor (30) of the present disclosure comprising a light receiver (33) configured to receive light. The light receiver (33) is attachable to an outside of an accommodation unit (20) into which a liquid is introduced and which has translucency. The light receiver (33) receives light that has passed through the liquid in the accommodation unit (20) or light reflected by the liquid, and outputs a signal related to a physical quantity of the liquid.

The application discloses a contact type regenerative combustor based on pure ammonia catalysis and a thermoelectric conversion system thereof, and the device comprises a body surrounded by an upper wall surface, a lower wall surface and a side wall surface, and the body is provided with a plurality of splitter plates and a tail gas baffle; the inner surfaces of the upper wall surface and the lower wall surface are coated with a perovskite catalyst layer; the outer sides of the upper wall surface and the lower wall surface are directly attached with thermoelectric modules, and the outer sides of the thermoelectric modules are provided with cooling plates. The application optimizes the flow field and enhances the disturbance through the splitter plates, guides the tail gas to preheat the mixed gas by using the baffle, and reduces the reaction activation energy by using the catalyst to assist combustion; the high-temperature tail gas directly heats the hot end of the thermoelectric module, and the liquid cooling plate maintains the low temperature of the cold end, thereby forming efficient thermoelectric conversion. The application has the advantages of compact structure, high thermal efficiency, effectively widened stable working range of ammonia combustion, and solved problems of small temperature difference, low efficiency and poor combustion stability of ammonia fuel of the existing combustor thermoelectric system.

The present invention relates to a power generator for the direct conversion of radiation and / or heat into electrical energy. The power generator comprises three capacitor elements (11, 12, 13) arranged parallel to and spaced apart from one another, wherein two of the capacitor elements form a driving capacitor which is applied to a driving voltage (U). C ) is charged, wherein each of the driving capacitor elements (11, 12) is or has a capacitor surface made of or coated with a conductive material, and the third capacitor element (13) is arranged substantially parallel to a first of the two capacitor surfaces of the driving capacitor on a rear side facing away from the second capacitor surface (11) or a front side of this surface (12) opposite the rear side, and are connectable or connected to the first driving capacitor surface (12) via a voltage tap (14a, 14b).

To provide a device and a method for vibration-free cryogenic cooling, suitable for transmission electron microscopes (TEM) and other analytical instruments.SOLUTION: A device includes a thermal reservoir adapted to be positioned outside a sample chamber, and a longitudinal member extending from the thermal reservoir into the sample chamber and flexibly couplable to a sample holder within the sample chamber.SELECTED DRAWING: Figure 1

An actuator according to one aspect of the present invention includes a first member in which a shape is transformed from a first position, which is either rolled or flat, to a second position different from the first position, and a restoring force is stored when the shape is transformed from the first position to the second position, and a second member which is joined to the first member along the length direction of the first member and in which the shape of the second position is stored.

The invention discloses a water cooling device for high-speed wire rod rolling, and relates to the field of water cooling of high-speed wire rod rolling. The water cooling device comprises a main body, two rollers are arranged in the main body, a rotating disc is fixed to one ends of the rollers, and a first crank is rotationally connected to one side of the center of the rotating disc; the tail end of the first crank is rotationally connected with a second crank, a piston is fixed to the tail end of the second crank, a piston cylinder is arranged on the outer side of the piston, a bottom plate is fixed to the bottom of the piston cylinder, an air leakage hole penetrates through the middle of the bottom plate, and a rotating plate is rotationally connected to the middle of the top of the bottom plate. A first crank drives a piston at the tail end to move up and down, the piston pushes gas into a first storage box through a pipeline and a second one-way valve through a piston barrel, and water stored in the first storage box is sprayed out through a spraying nozzle to cool wires needing to be cooled; and the water is recycled and reused.

The present invention provides a cross-linking agent-free liquid crystal elastomer synthesis method, a liquid crystal elastomer, and a body temperature-driven actuator. According to the cross-linking agent-free liquid crystal elastomer synthesis method, a liquid crystal elastomer with polymer chain orientation is prepared. The storage modulus of the liquid crystal elastomer is 0.1-1 MPa, and the temperature T at which the liquid crystal elastomer transitions from the nematic phase to the isotropic phase is 0.1-1 MPa. NI The actuator comprises the liquid crystal elastomer and a polyimide film. The liquid crystal elastomer is located on the surface of the polyimide film, and deformation of the liquid crystal elastomer causes the polyimide film to bend. The polyimide film serves as a constraining layer, enabling the liquid crystal elastomer to elastically reset. The present invention can achieve body temperature-driven deformation of the liquid crystal elastomer.

The invention relates to a magnetocaloric generator (1) comprising a set of porous active elements (2) based on MCM material and a magnetic device (3). The magnetic device (3) comprises two superimposed magnetic rotors, an external magnetic rotor (4) and an internal magnetic rotor (5), defining an air gap (E) between them and comprising one and the same number of magnetic poles (PM). The set of active elements (2) comprises a stator (30) arranged in said air gap (E). The active elements (2), extending axially in said stator (30), allow a bidirectional axial circulation of a heat transfer fluid between the hot end (EC) and the cold end (EF) of said generator. The external magnetic rotor (4) is advantageously coupled on the one hand to an electric machine (9) by a mechanical coupling and on the other hand to said internal magnetic rotor (5) by a magnetic coupling, whereby said rotors move in one and the same rotational sense and are magnetically synchronized.

A high-power bidirectional-driven bionic muscle fiber as well as a preparation method and use thereof are provided. The bionic muscle fiber includes a matrix fiber and an object material layer coating the matrix fiber, where the matrix material is capable of emitting heat after electrification, and the object material layer includes a liquid crystal elastomer (LCE); the bionic muscle fiber is excessively twisted to form a helical barrel-like structure. The bionic muscle fiber provided by the present application improves the mechanical property of the LCE, shows large work capability and drive quantity, and has an realize rapid response and work at high frequency. The contraction of the fiber can be controlled by changing voltage. Furthermore, the bionic muscle fiber exhibits a bidirectional driving feature that can recover without stress. In addition, the cyclic work of the fiber is greater than zero.

The invention provides an anti-severe environment wireless sensing system for a spacecraft. A multi-mode energy collection subsystem is used for collecting heat energy from a spacecraft structure in a high-temperature pneumatic heating environment and converting the heat energy into electric energy; the high-temperature energy storage subsystem is used for storing continuous low-power and transient high-power electric energy and providing transient high-power support for frequency agile communication and acoustic standby communication during sudden communication; the plasma self-adaptive frequency agility communication system is used for realizing self-adaptive wireless radio frequency communication in a plasma sheath layer; the acoustic standby communication subsystem is used for providing an independent structure guided wave acoustic communication channel when all radio frequency bands are shielded by plasma; the multi-parameter sensing subsystem is used for realizing measurement and data preprocessing of multiple physical quantities such as temperature, pressure and acceleration in a high-temperature environment; and the functionally graded material packaging structure is used for buffering thermal expansion mismatch under the conditions of high temperature and strong thermal cycle and integrally packaging the subsystems.

The present invention belongs to the technical field of three-phase oil-immersed transformers, specifically a three-phase oil-immersed transformer, comprising a three-phase oil-immersed transformer main body and an oil storage cylinder located at one end of the three-phase oil-immersed transformer main body, an oil cooling box is installed at one end of the second connecting pipe away from the second oil pump on one side of the three-phase oil-immersed transformer main body close to one end of the oil storage cylinder, a heat absorbing mesh plate is installed on the upper part of the oil cooling box, a heat absorbing block is installed on the lower part of the oil cooling box, and a heat recovery device is installed in the middle of the surface of one side of the oil cooling box. The present invention has the beneficial effects of collecting the heat carried by the oil in the process of cooling the oil carrying heat, which is helpful for recycling the heat carried by the oil, improving the working efficiency of cooling the oil in the three-phase oil-immersed transformer main body, and helping to use the three-phase oil-immersed transformer in an energy-saving and environmentally friendly manner.

Apparatus and methods are disclosed for vibration-free cryogenic cooling, suitable for TEM and other analytic equipment. A thermal battery includes one or more of: a cryocooler, a thermal switch, a thermal cold storage reservoir, and a cold finger. The thermal reservoir is mounted outside a sample chamber. The cold finger provides thermal coupling between the reservoir and a sample holder inside the sample chamber. In varying embodiments, sample holder and sample temperatures are regulated by a heater or by an inline variable thermal resistor. Cyclic phased operation includes cooling the reservoir, decoupling the cryocooler from the reservoir, and temperature-regulated passive vibration-free thermal energy extraction from sample to reservoir. The described system delivers a stand time of 12 hours at 20 K. Temperature regulation, a hybrid thermal switch, damping of thermal fluctuations, and material selection are described.

This application relates to the field of drive technologies, and discloses a control method, a device, and a readable storage medium. In the method, when detecting that at least one actuator line in an SMA actuator is disconnected, an electronic device may control, through at least a part (referred to as a target actuator line below) of non-disconnected actuator lines, a carrier of the SMA actuator to move relative to a fastening part, where a direction of a resultant force of the target actuator line acting on the carrier is the same as a direction in which the carrier is driven to move. In this way, even if an actuator line in the SMA actuator in the electronic device is disconnected, the electronic device may drive, through non-disconnected actuator lines, the carrier to move.

The invention relates to a fluid control device (10), in particular for a magnetocaloric machine, comprising at least one fluidic distributor (11), comprising a first duct (C1) connected to a first circuit portion (5a), and a second duct (C2) connected to a second circuit portion (5b), said ducts being separate. The fluidic distributor comprises a body (12), and a shutter (13) that is movable with respect to said body between two switching positions in order to allow flow along said first duct (C1) and said second duct (C2) alternately. The body and the shutter each comprise an outlet orifice (OA1, OA2) corresponding to the first duct (C1) and a return orifice (OR1, OR2) corresponding to the second duct (C2). The device further comprises an eccentric control mechanism (20) coupled on the one hand to a rotary actuator (4) and on the other hand to said shutter (13) in order to move it from one switching position to the other in a continuous output movement.