205 results about "Motor Drive Unit" patented technology

Photovoltaic electric control shutter hollow glass externally connected with a control box comprises a window body, a shutter blind, an electric driving device, a photovoltaic assembly and a receiver, the shutter blind is arranged in the window body, the electric driving device is arranged in an upper frame of the window body and used for driving the shutter blind to complete lifting and overturning, and the electric driving device is electrically connected with the wireless receiver; the receiver comprises a bottom box, a box cover and a main control circuit board, the main control circuit board is provided with a microprocessor, a power management unit, a photovoltaic charging management unit, a motor driving unit, a wireless signal receiving and processing unit, a key unit and an indicator light unit, and the photovoltaic charging management unit is electrically connected with the photovoltaic module; the wireless receiving device is installed in the upper frame of the hollow glass, the control key box which is externally connected and installed in a lower mode is adopted, the appearance of the hollow shutter glass can be neat, the key control box can be disassembled and assembled according to needs to be debugged and operated, the set height of the control key box better conforms to the using habit of a user, and operation is more convenient.

The invention discloses an unmanned aerial vehicle parachute throwing device, and belongs to the technical field of unmanned aerial vehicle equipment. Comprising a fault detection module, a trigger control module, a dual-power release module, a parachute storage module, a flight control cooperation module and a parachute ejection mechanism which are installed in an unmanned aerial vehicle body. A fault judgment algorithm is built in the trigger control module; the parachute ejection mechanism comprises an ejection shaft, the lower end of the ejection shaft is connected with a force storage assembly, the ejection shaft is sleeved with a limiting protruding ring, and a limiting column is arranged on one side of the limiting protruding ring and matched with the motor driving unit. The three-axis acceleration sensor, the air pressure sensor, the motor rotating speed sensor and the current sensor are integrated, a synchronous acquisition and automatic switching mechanism of the main sensor and the standby sensor is matched, acquisition interruption caused by faults of a single sensor is avoided, and data acquisition continuity is high. Instantaneous impact force is provided through compressed gas driving, the push rod is driven to be accurately unlocked through gear transmission, and the problems that traditional single power thrust is insufficient and release is slow are solved in cooperation with the double-spring force storage assembly.

A power swivel device for a vehicle seat is configured to perform both swivel and monopost functions of the vehicle seat. The power swivel device includes a motor configured to swivel the seat and a reduction gear device configured to increase output torque of the motor, which are stacked in a vertical direction on a bottom of the seat. The power swivel device includes a lower housing; an upper housing stacked on and assembled to the lower housing; an eccentric shaft rotatably disposed relative to the lower housing and the upper housing; a motor driving unit mounted between the lower housing and the eccentric shaft; the reduction gear device installed between the upper housing and the eccentric shaft; and a swivel plate rotatably mounted on the reduction gear device and connected to a seat cushion frame.

A motorized window treatment may include a covering material, a motor drive unit, a headrail, a cover, and one or more mounting brackets. The cover may be configured to enclose at least an upper portion and a rear portion of the headrail. The mounting brackets may be configured to secure the motorized window treatment to a structure. The mounting brackets may include a biasing member that is configured to engage a lower lip of the cover to bias the respective mounting bracket toward the top plate of the cover. The mounting brackets may include a release button that is configured to extend through a gap between the headrail and the top plate of the cover. The release button may be configured to be operated to adjust the motorized window treatment into a service position in which access is provided to at least one battery within the headrail.

The present disclosure provides a stepping motor abnormality detection device capable of detecting an abnormality of a stepping motor. The stepping motor abnormality detection device (100) includes a power supply unit (1), a stepping motor (4), a stepping motor drive unit (3), a determination unit (5), and a control unit (6). The stepping motor drive unit (3) causes the stepping motor (4) to operate by the control unit (6). A current level detection unit (2) acquires a current level during driving of the stepping motor (4) and compares the acquired current level with a threshold value determined in advance by the determination unit (5) to detect an abnormality of the stepping motor (4).

The utility model discloses a light electric single-wheel balance car driven by an external motor. The light electric single-wheel balance car comprises an electric control and seat cushion unit, a suspension lower movable unit, a motor driving unit, a shock absorber, a battery pack unit, a wheel set unit, a pedal and the like. A high-speed motor is used for speed reduction through a gear and power transmission through a constant velocity universal joint, and finally a belt speed reducer is used for driving a wheel set to rotate, so that modular power layout is achieved. Due to the fact that the power / weight ratio of the high-rotating-speed motor is larger, the total weight of the vehicle can be effectively reduced. The suspension structure of the triangular double shock absorbers can reduce the number of components. The upper half part of the universal coupling is fixed in the shell of the driving unit, the lower half sliding part of the universal coupling is positioned below the damping system spring, and the motor is fixedly mounted through the expansion joint of the universal coupling, so that the power unit does not move along with the suspension. Due to the adoption of the modularized structure, the disassembly and maintenance are convenient, and the reassembly and combination are simple and convenient. The last stage adopts belt transmission, noise is reduced, and maintenance is convenient.

A power-driven impact tool is provided. The impact tool includes a motor, a transmission, and a rotary impact mechanism received in a housing. The transmission may be a planetary transmission that reduces a speed of a rotary force output by the motor. The impact tool may be a cordless impact tool, receiving power from a battery back that is removably coupled in a battery receptacle of the housing. First and second handles on the housing may provide for user stability and control during operation of the impact tool. A plurality of user selection devices, including a trigger, a forward / reverse switch, and a mode selector, may be provided on one of the handles for user control of the impact tool.

A four-motor hub motor device with a WW wheel train is disclosed, comprising four motor units, each including a motor drive unit and a motor body unit. The motor shaft of the motor body unit is connected to the input end of a reduction system via an input gear. The output end of the reduction system is connected to the wheel hub, and the wheel hub is connected to the tire, realizing power output and transmission. The reduction system includes an internal gear ring meshing with the input gear. The internal gear ring is connected to a double planetary gear shaft via a double planetary gear shaft. One side of the double planetary gear meshes with a fixed-end sun gear, which is connected to the wheel hub shaft. The other side of the double planetary gear meshes with an output-end sun gear, which is connected to the wheel hub and supported on the wheel hub shaft by a bearing system, transmitting the motor power to the wheel hub. This invention, through the four-motor hub motor device with a WW wheel train, achieves multi-motor power distribution, offering advantages such as safety, reliability, high energy utilization, convenient heat dissipation, and compact structure.

A motor control device according to an embodiment of the present invention comprises: a motor driving unit including a plurality of switches and supplying driving power to drive a motor; a sensing unit that measures an output current of the motor driving unit; and a control unit that controls the plurality of switches, wherein the control unit estimates a phase current of the motor driving unit by using the output current measured by the sensing unit, estimates a temperature estimation parameter by using the estimated phase current, estimates the temperature of the motor by using the temperature estimation parameter, and controls the plurality of switches according to the estimated temperature.

The device comprises: a first housing housing a power conversion device; a first connector mounted on the first housing and having contacts electrically connected to the power conversion device housed in the first housing; and a busbar having conductivity. A second housing is disposed adjacent to the first housing and disposed side by side. The second housing is fitted with a second connector having the same configuration as the first connector and having the same function as the first housing. In this case, the busbar temporarily disposed near the first connector slides toward the second connector and electrically connects the contacts of the first connector and the contacts of the second connector by means of the busbar, thereby electrically connecting the power conversion device housed in the first housing with the power conversion device housed in the second housing.

A motorized window treatment may include one or more mounting brackets and a window treatment assembly supported by the one or more mounting brackets. The window treatment assembly may include a covering material that is operable between a raised position and a lowered position. The window treatment assembly may include a bottom bar comprising an energy storage element. The motorized window treatment may include a motor drive unit comprising a motor configured to rotate to adjust the covering material between the raised position and the lowered position. The motorized window treatment may include a dock configured to be electrically coupled to the motor drive unit. The bottom bar may be configured to be positioned adjacent to the dock when the covering material is in the raised position, such that the energy storage element is configured to charge through the dock and the motor drive unit.

A control device includes: a print data acquisition unit configured to acquire print data, which is formed of a plurality of lines and indicates a coloration state of each pixel included in the plurality of lines; a head drive unit configured to supply, to a thermal head formed of a plurality of heating elements each corresponding to the pixel, an electric current for heating the thermal head for each pixel; a motor drive unit configured to supply, to a motor configured to move heat-sensitive paper relative to the thermal head, a drive current for step driving the motor for each line; a speed control unit configured to control, based on the number of colored pixels of a determination subject line among yet-to-be-printed lines of the print data, a relative moving speed of the heat-sensitive paper moved by the motor; and a preheating control unit configured to cause the head drive unit to output, when the determination subject line is a specific line being a line in which the number of colored pixels of the determination subject line exceeds a predetermined value, a preheating current being an electric current for heating the thermal head to such a degree as to prevent coloring of the heat-sensitive paper by a time the specific line is printed.

A motor assembly for driving a pump or rotary device features a power plane with a circular geometry to be mounted inside a space envelope having a similar circular geometry formed on an end-plate between an inner hub portion and a peripheral portion that extends circumferentially around the space envelope of the end-plate. The power plane is a multi-layer circuit board or assembly having: a power layer with higher temperature power modules for providing power to a motor, a control layer with lower temperature control electronics modules for controlling the power provided to the motor, and a thermal barrier and printed circuit board layer between the power layer and the control layer that provides electrical connection paths between the power modules of the power plane and the control electronics modules of the control layer, and also provides insulation between the power layer and the control layer.

The present application provides a single soldier combat flying umbrella, relates to aviation power and single soldier flying equipment technical field, in order to solve the efficiency, noise and safety problem of traditional propeller propulsion system, the present application discards propeller, and adopts the innovative power system consisting of coaxial reverse motor drive unit, tilt linkage mechanism and gravity ball.Electric motor drives gravity ball to do circular motion, utilizes the centrifugal force component as the source of propulsion and lift, and utilizes gyroscopic effect to enhance stability. Through controlling the speed difference of two electric motors, accurate attitude control can be realized. The system has the advantages of compact structure, high efficiency, extremely low noise, good safety and strong environmental adaptability, and is especially suitable for military single soldier mobility, special operation and civil leisure flight and other fields.

An open / close body control device includes a motor drive unit and a control unit. The motor drive unit outputs a predetermined application voltage to a motor based on a control command from the control unit. The control unit is configured to set a target speed of the motor to a closing-time target speed that ensures a torque required for closing the open / close body when the open / close body reaches a first position that is ahead of a closing position, and perform feedback control on the motor drive unit, and stop the feedback control when the open / close body reaches a second position that is closer to the closing position than the first position, and control the motor drive unit so that the application voltage of the motor at that time is maintained.

This invention relates to a rotor assembly for an electric motor, an electric motor assembly, and an electric motor drive unit. The rotor assembly (10) includes a lamination group (20) and end rings (30, 40) located at both axial ends of the lamination group (20). The rotor assembly (10) has an internal oil passage (100) comprising an axially extending passage portion (110) formed by the lamination group (20) and an end-side passage portion (120) formed by the end rings (30, 40), wherein the axial passage portion (110) and the end-side passage portion (120) are in communication with each other. The electric motor assembly includes a stator assembly and the aforementioned rotor assembly. The electric motor drive unit includes a transmission assembly, a controller, and the aforementioned electric motor assembly.

The invention relates to the field of robot control, and discloses a control method of an operation arm, a robot system, computer equipment and a storage medium. The control method includes: obtaining an input spatial vector for driving at least one motor driving unit of the operating arm, the at least one motor driving unit including a first sensor and a second sensor, respectively, and the input spatial vector including a first parameter from the first sensor and a second parameter from the second sensor; calculating a sensing estimation value related to the second sensor based on the input spatial vector and a sensing value estimation model; determining a current driving output amount of the at least one motor driving unit based on the sensing estimation value; based on the current driving output quantity of the at least one motor driving unit, the current pose of the tail end of the operation arm is determined; obtaining a target pose of the tail end of the operation arm; and based on the current pose and the target pose of the tail end of the operation arm, determining a target driving signal of the operation arm to drive the operation arm to move towards the target pose.

A diagnostic device, a diagnostic method, and a component supply device capable of simply and quickly diagnosing a component supply device. A diagnostic device for a tape feeder (2) that drives a conveyance mechanism for a component supply tape by means of a motor (23) is provided with a diagnostic unit. The tape feeder has an encoder (27) that detects rotation of an output shaft (a motor shaft (23J)) of the motor, and a feeder control unit (40) that receives a feedback signal (FS) from the encoder and controls the motor. The feeder control unit includes a motor drive unit (42) that supplies power to the motor with a pulse of a fixed period, and a feedback unit (41b) that outputs to the motor drive unit (42) a command value (secondary command (S2)) that adjusts the width of the pulse output by the motor drive unit on the basis of a feedback signal (FS). The diagnosis unit diagnoses the state of the tape feeder on the basis of a command value (secondary command (S2)) acquired from the tape feeder.

This utility model discloses a cleaning device for optical lenses in the field of lens cleaning technology. It includes a cleaning chamber base, a cleaning tank mounted on top of the cleaning chamber base, a lifting assembly connected to the top of the cleaning tank, and a filter screen plate at one end of the cleaning chamber base. The lifting assembly includes a sealing end cap, and a centrifugal cleaning component is connected to the bottom of the sealing end cap. This solution achieves deep cleaning of lenses through the coordinated operation of the centrifugal cleaning component and an ultrasonic generator. The centrifugal cleaning component rotates at high speed driven by a motor drive unit, generating strong centrifugal force to effectively remove micron-sized particles and oil stains adhering to the lens surface. The high-frequency sound waves generated by the electrically powered ultrasonic generator create a cavitation effect in the cleaning fluid, further loosening and peeling away stubborn stains on the lens, ensuring a high degree of cleanliness on the lens surface and achieving refined lens cleaning, thus meeting the stringent requirements for high cleanliness in optical lenses.

The invention relates to a device for roll stabilization of a ship under motion, anchoring or zero speed and / or for influencing the ship's heading, comprising a wing support shaft on which a guide wing is arranged, wherein the wing support shaft is drivable by a motor drive unit and the drive unit is arranged on the ship's hull by a base. According to the invention, the motor drive unit is configured with a synchronous motor, which drives the wing support shaft using a reduction eccentric gear. The device thereby has significantly reduced installation space requirements, causes only slight operating noise and is also optimally electronically adjustable.

The application provides a marine energy-saving louver hollow glass window, which comprises inner glass, outer glass, a window body, a louver, a louver drive assembly, an energy storage battery pack and a control box. The louver drive assembly comprises a motor, a position limiter and a transmission device. The control box comprises a shell and a control circuit board. The control circuit board is provided with a microprocessor, a power management unit, a motor drive unit and a wireless signal receiving and processing unit. The motor drive unit is electrically connected with the motor. The motor is connected with the transmission device. The marine energy-saving louver hollow glass window further comprises an environment sensing module. The environment sensing module is arranged on the window body and is electrically connected with the control circuit board. The outer glass is electrochromic light-adjusting glass. The control circuit board is provided with an electrochromic drive circuit. The outer glass is electrically connected with the electrochromic drive circuit. The marine energy-saving louver hollow glass window can adjust the heat conduction performance of the louver according to the real-time environment to achieve the energy-saving purpose. The structure of the louver is fully utilized to meet the energy-saving demand and privacy protection.

A power module for a vehicle is provided. The power module comprises a printed circuit board with an insulating layer and a first metal layer, a switching unit arranged on the circuit board, a conductor frame arranged on one side of the circuit board, a signal line arranged on the other side of the circuit board, and a Hall sensor arranged on the circuit board. The Hall sensor includes a sensing unit arranged to detect a magnetic field of a target pattern on the first metal layer, and a magnetic shield that provides magnetic protection for at least a portion of a surface other than a surface of the sensing unit facing the target pattern.

The application discloses a hydraulic force control method and system of a magnetic screw integrated electric master cylinder, and the method comprises the following steps: obtaining relevant measurement data of the magnetic screw integrated electric master cylinder; constructing an analytical mathematical model of the magnetic screw integrated electric master cylinder based on the relevant measurement data; calculating reference data of the magnetic screw and reference data of a driving motor in a fixed time constraint robust control mode based on the analytical mathematical model; and inputting the reference data of the magnetic screw and the reference data of the driving motor into a motor driving unit to drive the magnetic screw integrated electric master cylinder to run according to a preset track. The application can effectively solve the problem that the control method and system of a traditional electric master cylinder cannot be directly applied to the magnetic screw integrated electric master cylinder, and realize stable control of hydraulic pressure.

It provides good protection for the components of the motor drive unit connected to an open-winding motor. [Solution] The motor drive device of the present disclosure includes an upper arm and a lower arm, each connected to each of a plurality of coils of an open-winding motor, and includes first and second inverters connected in parallel to a positive-side power line and a negative-side power line connected to a battery; a switch provided on the positive-side power line for connecting the positive terminal of the battery to one of the first and second inverters and for disconnecting the two; and a control device that, in response to a shutdown request, shuts down the first and second inverters and then opens the switch on the positive-side power line after a predetermined delay time has elapsed that is shorter than the time allowed for current discharged from the plurality of coils of the open-winding motor to flow to the battery.

The application discloses a high-integration angle module for an agricultural vehicle and relates to the technical field of agricultural machinery equipment. The application comprises a framework body, a steering unit is installed at each corner of the framework body, a suspension unit is installed at the output end of the steering unit, a wheel hub motor driving unit is rotatably installed on the suspension unit, the steering unit drives the wheel hub motor driving unit to perform steering control by applying a rotating torque to the suspension unit, wherein the suspension unit comprises a supporting suspension fixed at the output end of the steering unit, and a trailing arm is hingedly connected to the bottom end of the supporting suspension. The application performs geometric optimization design on the suspension unit, the center of the wheel shaft is downwardly offset relative to the main axis of the trailing arm to form a gravity center sinking structure, the upper mounting point of an elastic return member is lowered to shorten the force arm, the vertical displacement amount of the center of the wheel hub motor driving unit is greater than the compression deformation amount of the elastic return member, and the ability of the vehicle to cross obstacles and the passability of the vehicle on complex terrains are significantly enhanced in limited installation space.

The utility model provides a power board, a variable-pitch motor driving unit and a variable-pitch motor driving system. The power board comprises a power conversion circuit, a first current sensor and a first signal connector. The first current sensor is connected with the power conversion circuit; the power conversion circuit is used for inputting three-phase alternating current and outputting direct current, or the power conversion circuit is used for inputting direct current and outputting three-phase alternating current; the first signal connector is connected with the first current sensor and the power conversion circuit. The power board can be used as a grid-side power conversion circuit in the power circuit of the variable-pitch motor and can also be used as a machine-side power conversion circuit, the power conversion circuits in the power circuit are modularly integrated in the form of the power board, and when the power demand is relatively high, a plurality of power boards can be connected in parallel, so that the power demand is relatively high. The number of the power boards is flexibly adjusted according to power levels, and various power levels can be met.

A motor assembly for driving a pump or rotary device features a power plane with a circular geometry to be mounted inside a space envelope having a similar circular geometry formed on an end-plate between an inner hub portion and a peripheral portion that extends circumferentially around the space envelope of the end-plate. The power plane is a multi-layer circuit board or assembly having: a power layer with higher temperature power modules for providing power to a motor, a control layer with lower temperature control electronics modules for controlling the power provided to the motor, and a thermal barrier and printed circuit board layer between the power layer and the control layer that provides electrical connection paths between the power modules of the power plane and the control electronics modules of the control layer, and also provides insulation between the power layer and the control layer.

The invention discloses an intelligent 2M connector automatic plugging and state detection device which comprises a shell, an intelligent screwing mechanism, a plugging execution unit, a state detection module, an intelligent control system and a safety protection device. The shell is of a handheld structure, a telescopic clamp installation groove is formed in the front end of the shell, and a detection terminal containing cavity is formed in the bottom of the shell. The intelligent screwing mechanism is fixed to the position of a middle shaft in the shell and comprises a high-precision motor driving unit, a storage battery power unit, a transmission system and a clamp. The device aims to realize automatic and precise twisting, plugging and unplugging operation of the 2M connector, integrates a cable on-off detection function, and improves the maintenance efficiency of communication equipment and the reliability of signal transmission.

This invention discloses a control system and method for lifting the roof of a giant hydropower unit, comprising: a signal acquisition module configured to acquire in real time the position signals of each support point of the roof, the hydraulic system pressure signals, and the oil tank status parameters; a core control module including a programmable logic controller (PLC) and a human-machine interface unit, wherein the PLC is communicatively connected to the signal acquisition module and programmed to execute synchronous compensation control logic; an execution drive module including a hydraulic pump control unit, a cooling motor control unit, and multiple servo motor drive units, each servo motor drive unit being connected to a relay at each support point of the roof; and a fault alarm unit activated in response to a fault judgment signal from the PLC. This invention effectively solves the technical problems of low synchronization accuracy, coarse fault response, and inaccurate endpoint alignment in the prior art.