21 results about "Solenoid actuator" patented technology

The application discloses a linear electromagnetic actuator integrating sensing and executing, which comprises a rotor, a guide rail and a stator; the guide rail is installed on the stator; the guide rail is provided with a movable groove, and the rotor can move in the movable groove. The stator comprises a stator base plate, an inductor coil and a driving coil; the inductor coil is integrated on the back of the stator base plate, and the driving coil is installed on the front of the stator base plate. The inductor coil and the magnetically conductive rotor base plate form an inductor system, when the rotor moves under the action of the driving coil, the inductance will periodically change with the position of the rotor. The position detection of the motor can be carried out based on the periodic change of the inductance, and the speed feedback control of the electromagnetic actuator is facilitated.

The application provides an electromagnetic actuator, which comprises a ring-shaped electromagnetic assembly, a push ring is coaxially sleeved in the inner ring of the electromagnetic assembly, the push ring moves along the axial direction under the drive of the electromagnetic assembly, the outer wall of the push ring is attached to the inner wall of the inner ring, and the radial position of the push ring is determined by the inner wall of the inner ring when the push ring moves along the axial direction. The electromagnetic actuator provided by the application can keep the stability of the axial movement of the push ring by using the attachment and guidance of the inner wall of the push ring and the inner ring of the electromagnetic assembly. The radial position stability of the push ring can be kept without adding a coaxial sleeve part attached to the push ring and without relying on an external coaxial part, so that the electromagnetic actuator provided by the application is more integrated and smaller in structure.

Adjustable damping valve device comprising an actuator with a solenoid coil and an axially movable armature, wherein a groove-rib profile connection is functionally provided between the armature and a component conducting a magnetic flux of the solenoid coil, which engages when the actuator is actuated, wherein the ribs have at least partially different immersion depths in the corresponding grooves when the actuator is actuated.

The application aims to provide a superheat control type ammonia fuel supply system based on fuel activity design, belonging to the field of fuel supply, comprising a liquid ammonia common rail type supply system, a diesel common rail type supply system, a fuel injection device, a superheat control unit and other components of an engine. Hydroxyl-rich gas is used as a combustion-supporting agent instead of pure hydrogen fuel. The safety of the system is ensured, the dynamic thermal management characteristics during engine operation are fully considered, ammonia fuel superheat control is performed, and the direct control form of the sleeve type valve rod strong magnetic force electromagnetic actuator is adopted for the ammonia fuel injection of the application, realizing high response and precise injection of the double fluid mixed gas. The electromagnetic actuator structure of the multi-hole valve rod is adopted to realize the rapid response of the control valve and the separation of the servo oil circuit and the supply oil circuit; the new valve rod structure is adopted to reduce the weight of the valve and the electromagnetic force demand, improve the response performance, and fundamentally avoid the cavitation problem caused by the traditional control valve structure.

The utility model discloses a spent fuel auxiliary hoisting device, including base, be installed on the base the rotary table, be installed on the rotary table the crossbeam, be equipped with the movable slot on the crossbeam, the both sides of movable slot are equipped with slide rail respectively, the top of movable slot is equipped with movable plate, the both sides of movable plate are fixedly connected with slide respectively, the below of movable slot is equipped with the hanging board, and the hanging board fixedly connected with cable and a plurality of lifting ropes, be installed with a plurality of take -up wheels on movable plate, the lower surface of hanging board is equipped with the clamping groove, and the periphery of clamping groove is equipped with a plurality of installation grooves, and the inside of installation groove is equipped with the clamping plate respectively, and the clamping plate is controlled respectively by electromagnetic actuator. The utility model discloses a spent fuel auxiliary hoisting device, and rotary drive mechanism drives rotary table rotation, and cooperation translation drive mechanism drives movable plate movement, makes device can realize multi -angle, multi -direction accurate hoisting, greatly promoted hoisting flexibility, and effectively adapted complex working condition.

This utility model discloses a horizontal force measuring device for an electromagnetic actuator of an electromagnetic clutch, including a force gauge, a telescopic component, a chuck, and a linear drive mechanism. The force gauge and the telescopic component are respectively connected to the linear drive mechanism, which cooperates with the chuck. It also includes an armature support mechanism for fixing different types of electromagnetic actuators, allowing the device to test different types of electromagnetic actuators without changing the fixture. The armature support mechanism is connected to the chuck and includes a bracket, a mounting base, a fixed plate, a positioning shaft, and a retaining ring. The fixed plate is connected to the bracket, the mounting base is connected to the fixed plate, the positioning shaft is connected to the mounting base, and the positioning shaft passes through and connects to the retaining ring. This utility model solves the technical problems of vertical electromagnetic force testing devices being incompatible with the operating conditions of electromagnetic actuators, and the need to change different fixtures to test different electromagnetic actuators, resulting in slow changeover, high costs, and cumbersome operation.

The present application relates to the field of micro-actuator design optimization, and particularly relates to a MEMS electromagnetic actuator resonance frequency and stroke collaborative optimization method. The method comprises the following steps: parameterized modeling of the MEMS electromagnetic actuator, defining multiple geometric structure parameters affecting the resonance frequency and stroke as adjustable variables to obtain a parameterized model; multi-objective iterative optimization of the parameterized model, taking the minimum deviation of the resonance frequency and a target frequency, the maximum in-plane displacement and the minimum out-of-plane displacement as optimization objectives, writing the updated parameter values into the parameterized model for modal analysis in each iteration, reading the first-order resonance frequency, in-plane displacement and out-of-plane displacement as evaluation indexes, and outputting an optimal parameter set; obtaining the optimized performance indexes by substituting the parameterized model, and comparing the performance indexes with those of an initial parameter set to obtain an optimization effect evaluation result. The present application solves the problem that the prior art is difficult to simultaneously consider the three mutually conflicting performance indexes of resonance frequency, in-plane displacement and out-of-plane displacement.

Disclosed are a solenoid actuator and a multi-stage solenoid actuator for transmitting a constant force. The solenoid actuator includes a tubular solenoid, a power unit capable of applying current to the solenoid, and a magnetic pair member having two magnetic members providing magnetic fields formed such that respective first poles thereof face each other and respective second poles thereof different from the first poles are located at both distal ends, and extending through the tub of the solenoid. The multi-stage solenoid actuator includes a solenoid assembly where at least two tubular solenoids are regularly aligned such that inner spaces of the tubes of the solenoids are arranged in series, a power unit capable of individually applying current to each solenoid of the solenoid assembly, at least one magnetic pair moveable unit having two magnetic members providing magnetic fields formed such that respective first poles thereof face each other and respective second poles thereof different from the first poles are located at both distal ends, and extending through the tub of the solenoid assembly, and a controller for determining and controlling a solenoid to receive the current from the power unit depending on a position of the magnetic pair moveable unit.

System for controlling an electromagnetic actuator, comprising a measuring element for measuring a measurement vector, a control element for providing a target vector, and An estimation element for reconstructing an estimation vector from the target vector and the measurement vector and for providing the estimation vector to the electromagnetic actuator, characterized in that the measuring element is configured to measure the measurement vector for a time tk, wherein the control element is configured to provide the target vector for a time tk and for a time tk+1, and wherein the estimation element is configured to calculate the estimation vector for a plurality of times ti from the interval [tk, tk+1], wherein the estimation vector includes at least the same quantities as the target vector.

The present application relates to a kind of electronic mechanical brake calipers, including shell, brake disc and brake pad, further including actuating assembly and electromagnetic actuator, actuating assembly is arranged in shell, actuating assembly includes motor, transmission structure, conversion mechanism and piston, the power output end of motor is connected with the power input end of conversion mechanism by transmission structure, conversion mechanism can convert the rotary motion of its power input end into the linear motion of its power output end, the linear motion of the power output end of conversion mechanism can promote piston to drive brake pad and resist tight brake disc, electromagnetic actuator is arranged between shell and piston, electromagnetic actuator is used to exert force on piston in the direction away from brake disc.The present application also proposes a kind of electronic mechanical brake caliper control method.The present application can reduce even eliminate the drag force of electronic mechanical brake caliper, with the characteristics of simple structure, high integration and reliable performance.

This utility model provides a detachable hyperbaric oxygen chamber spray test device, relating to the technical field of test equipment. It includes a fluid supply module connected to a pipeline opening and closing module, which in turn is connected to a chamber top interface module fixed to the top wall of the hyperbaric oxygen chamber. The fluid supply module includes a water storage container. The pipeline opening and closing module includes a water supply pipeline connected to the water storage container, with a parallel electromagnetic actuator and a manual flow-stopping device installed in the middle section of the pipeline. The chamber top interface module is selectively connected to either a fire sprinkler terminal or a flow-draining test terminal via a detachable structure. The advantages of this utility model are that when testing the pipeline, the fire sprinkler terminal can be disassembled, and then the flow-draining test terminal can be installed. This allows for the collection of test water from the pipeline, achieving directional collection of the test water and effectively avoiding environmental interference caused by water diffusion in traditional tests. It also eliminates the need for personnel to lift the water, reducing labor costs.

The solenoid actuator includes two solenoid actuator tubes, a non-magnetic ring, and two brazing rings. The two solenoid actuator tubes are aligned and spaced apart. The non-magnetic ring is disposed between the two solenoid actuator tubes. The non-magnetic ring and the solenoid actuator tubes define a plunger bore. The two brazing rings are disposed between non-magnetic ring and the two solenoid actuator tubes. A melting point of the two brazing rings is lower than melting points of the solenoid actuator tubes and the non-magnetic rings. When the solenoid actuator tubes are heated and pressurized, the two solenoid actuator tubes and the non-magnetic ring are able to soften, and the two brazing rings are able to melt and join the two solenoid actuator tubes with the non-magnetic ring. A method for making the solenoid actuator is also disclosed.

To provide a solenoid actuator which is excellent in suction characteristics and can be manufactured at low costs, and to provide a method of manufacturing the solenoid actuator.SOLUTION: A solenoid actuator 1 (1A, 1B) includes: a coil 3; a first stator 10 and a second stator 20 which are arranged forming an air gap 11 therebetween in an axial direction so as to form a magnetic path 4 around the coil 3; and a movable element 50 configured to move in the axial direction toward the second stator 20 from an original position radially inward of the first stator 10 by a magnetic force generated by energizing the coil 3. The first stator 10 includes: a first yoke 14; and a first cylindrical member 30 which is fixed to the inner periphery side of the first yoke 14 and forms the air gap 11.SELECTED DRAWING: Figure 1

The invention relates to a system used in compressed air mechanisms that ensures the safe storage and transmission of compressed air. The system comprises a compressed air reservoir (1) and a compressed air tank (3), a pressure gauge (4) for monitoring the pressure level, and a temperature gauge (5) for detecting temperature fluctuations. The valve assembly (2), which provides gas guidance, includes a quick-connect fitting (6), a manual discharge interface (7), a solenoid actuator interface (8), a pushing shaft (9), a movable part (10), a piston (12), a check valve (13), sealing elements (14, 18), radial holes (15), a pipeline (16), an outlet line (17), and a manometer connection interface (19).

The utility model discloses an electromagnetic actuator for electromagnetic clutch, including electromagnetic coil subassembly, shell, apron, armature subassembly, and electromagnetic coil subassembly includes coil and coil framework, and coil framework ring package coil, and shell is located coil framework outside, and apron is located coil framework outside, and shell is cooperated with apron, and the assembly space is formed between shell and apron, and the extension is set up on armature subassembly, and extension is located in assembly space, and the magnetic separation part is set up on coil framework, and the magnetic separation part is located between extension and shell to prevent the magnetic force attraction armature subassembly after shell energization. The utility model's solution above-mentioned shell and apron magnetization simultaneously to the opposite direction attraction armature makes work efficiency reduce, and energy consumption increases, and armature is magnetized by apron to make the tooth disc magnetization influence the follow -up work.

This invention discloses an electromagnetic collision avoidance protection system for vehicle emergency braking and its control method. The system includes electromagnetic coil actuators (1–5) integrated inside the front and rear bumpers of the vehicle, multi-source and logic trigger detection modules (8, 9, 10), a supercapacitor energy storage group (6), a main control ECU (7), and an optional vehicle network communication module (11). When the vehicle brakes suddenly and the estimated time to collision (TTC) is no more than 1.5 seconds, the system drives the electromagnetic actuators of the bumpers to generate a strong magnetic field within 10 milliseconds, forming an electromagnetic repulsion field (12) between the vehicle and the adjacent vehicle, serving as an additional non-contact collision avoidance buffer layer outside the braking system. The system supports two working modes: eddy current induction repulsion and dual-vehicle cooperative direct magnetic repulsion. It automatically adjusts the repulsion force in three levels according to the estimated time to collision and has an event data recording function. The system response time of this invention is no more than 10 milliseconds, which can provide effective physical collision avoidance protection within a very short time window in which the driver cannot react. It works in conjunction with existing safety systems such as AEB and ABS, significantly reducing the incidence and intensity of rear-end collisions, and has high engineering feasibility and application value.

A vehicle rear-seat trunk-access locking system is provided. The system is designed to prevent unauthorized trunk access via folding down an existing rear seat of a vehicle. The system is comprised of an electronic latch mechanism that engages with a striker plate mounted to the seat structure. The latch comprises a solenoid actuator that drives a locking pin into engagement, governed by an electronic control unit receiving input from user interfaces and sensors. A multi-factor authorization sequence involving ignition activation, proximity token verification, and a manual or digital release command is required to trigger latch disengagement, with optional biometric verification for enhanced security. The system also comprises a concealed handle assembly with a spring-loaded locking plate and mechanical linkage to the latch for authorized manual override, ensuring both electronic and mechanical tamper resistance.

The application relates to an electromagnetic actuator and a brake parking mechanism thereof. The electromagnetic actuator comprises a shell, a coil assembly, a push rod, a first moving iron and a second moving iron. The shell has oppositely arranged first and second end faces. The coil assembly is arranged in the shell, and an accommodating channel is arranged in the inside of the coil assembly. The push rod is movably arranged in the accommodating channel, and one end of the push rod penetrates the first end face along the length direction of the push rod. The first moving iron is movably arranged in the accommodating channel and located on one side of the second end face of the shell. The first moving iron is connected with the other end of the push rod, and the first moving iron is configured to be moved to the side close to the first end face under the energized state of the coil assembly and drive the push rod to move under the electromagnetic force. The second moving iron is movably arranged in the accommodating channel and located between the first moving iron and the first end face. The first elastic member has one end connected with the push rod or the first moving iron and the other end connected with the second moving iron, and is configured to push the push rod or the first moving iron to move to the side away from the first end face.

The present invention relates to a solenoid actuator-based control unit for a drive train transmission unit or a gearbox of a commercial vehicle, comprising a solenoid actuator, which comprises an actuator rod configured to linearly reciprocate, wherein the actuator rod comprises a first end and a second end, wherein the actuator rod further comprises a magnet holder holding a magnet In an embodiment, an electronic gearbox control mechanism comprising the solenoid actuator-based control unit is disclosed. In another embodiment, a gearbox comprising the electronic gearbox control mechanism is disclosed.