338results about "Electromagnets with armatures" patented technology

An electromagnetic-actuator (EA) including a coil-element (CE) having a coil-core (CC) / coil arranged about the CC-circumference. The CC has a symmetrical first-region (FR) having an axis-of-symmetry (AOS), the CC being surrounded by the coil, and a movable-magnetic-armature-body (MM AB) as a movable-actuator-element (MAE) interacts with the CE to produce an AB activation-movement, and is supported in the actuator by a bearing-device (BD) and movable from a first / second-position by activating the CE. The BD is radially-offset to the CC AOS, and the AB extends from the BD radially over the CC from a first / second-side of the CC, which has a second-region (SR) extending radially beyond the FR and is on second-side (SS) of the CC between the coil / AB in the direction of AOS such that an air-gap between CC / AB in direction of the AOS is smaller on the SS of the CC than on first-side when the AB is in first-position.

The invention discloses a nozzle baffle type nonlinear electrical converter which comprises a base, an electromagnetic unit and an air injection unit. A supporting frame is fixed to one end of the base. The electromagnetic unit comprises a magnetic field generator, a flexible hinge and an armature; the magnetic field generator generates a magnetic field air gap in the frame body of the support frame; the flexible hinge is fixed on the support frame; the armatures are arranged in parallel, one end, close to the support frame 101, of each armature is a magnetic end, and the other end of each armature is a swinging end; the middles of the armatures are fixed to the flexible hinge, the magnetic ends are inserted into the magnetic field air gap, and the swing ends can swing around the flexible hinge in the top plane direction of the base. The air injection unit comprises an offset baffle and a nozzle; the offset baffle is fixed to the swing end. The nozzle is fixed to the top face of the base, the air inlet end communicates with an air compression pipeline controlling the executing mechanism, and the air spraying end corresponds to the offset baffle. Linear motion of the offset baffle is changed into swing motion, and the problems of concentricity, abrasion and stroke of the converter are effectively solved.

A relay 1 comprises a first fixed contact 7,15 (figure 1), a contact arm 8 having a first movable contact 9,14, and an electromagnetic drive unit 2 having an armature 3 and a yoke 4. A connector 10 (f

To provide an electromagnetic actuator capable of improving responsiveness by promoting a fall of current stored in a coil.SOLUTION: An actuator drive system 100 has a configuration including an electromagnetic actuator 200 and a drive circuit 110 for driving the electromagnetic actuator 200. The electromagnetic actuator comprises: a housing 202; a cylindrical drive coil 210 disposed inside the housing; a drive plunger 220 disposed inside the drive coil; a shaft 10 inserted in the drive plunger; and a lock mechanism for engaging the drive plunger with the shaft when the drive coil is excited. The drive circuit comprises: a switch (drive switch 122) for sending pulse current to the drive coil; and a Zener diode (drive side Zener diode 124) for forming a closed loop between the drive coil and the ground.SELECTED DRAWING: Figure 3

The present invention relates to a system and method to control an electric door lock based on a current pulse generator and a switched mode current source with load-dependent output which allows to reduce the size of the installation and the energy needed for the opening / closing of the door and offers the possibility of implementing a rechargeable battery as back up. To do so, the system and method generates 2 sequential current signals after receiving a trigger, wherein one of the signals is a current peak signal with short time duration and the other one a lower but longer in time current signal.

Embodiments in accordance with the present disclosure relate to devices, systems, and methods for controlling the speed of a movable component in an electronic relay. In a particular embodiment, an electronic relay assembly is disclosed that includes at least one fixed contact and a movable assembly that includes a movable contact coupled to a shaft that is coupled to a plunger. In an embodiment, a plunger is disposed in an actuation channel defined by a magnetic actuation assembly and is configured to move along an actuation path. The electronic relay also includes a magnetic bridge surrounding a portion of the actuation path of the plunger.

The invention discloses a high-frequency linear electromagnet and a control method thereof, and relates to the technical field of electromagnetic control, the electromagnet comprises permanent magnet steel, a magnetizer, a magnet yoke, a motion shaft, an armature, a control coil and an elastic piece, the magnetizer and the armature form four groups of uniform air gaps, after the coil is electrified, the air gap magnetic field changes, electromagnetic acting force is generated, and the motion shaft is driven to move; the electromagnetic acting force is balanced with the reset force and the loading force of the elastic piece; the control method comprises the steps of prepositive verification, magnetic field state sensing, dual-mode driving adjustment, dynamic error feed-forward compensation, stability verification and adaptive parameter updating, interference such as hysteresis and temperature is counteracted by intelligently switching a quick response mode and a high-linearity mode and combining error compensation and adaptive parameter updating, and the stability of the magnetic field is improved. The invention has the advantages of fast high-frequency response, high control precision and stable operation, can be widely applied to high-precision high-frequency driving scenes, and improves the processing quality and efficiency.

The invention relates to an axial flux machine with a stator (1) and a rotor (13), wherein the stator (1) has a stator housing (8) and arranged therein a plurality of stator windings (18) designed as individual teeth (2), between which radially extending spaces are provided, wherein in the stator housing (8) an outer collecting chamber (4) radially outside the individual teeth (2), an inner collecting chamber radially inside the individual teeth (2), an inlet (10) and a return are arranged, wherein the stator (1) is configured to be supplied with a cooling fluid (KF) through the inlet (10) into one of the collecting chambers (4), through the spaces into the other of the collecting chambers (4) and through the return, wherein a valve assembly (14) acting on the flow of the cooling fluid (KF) is provided, wherein the valve assembly (14) has a valve slide (15) made of a ferromagnetically active material and a return spring (16).wherein the valve slide (15) is oriented in an axial direction of the stator (1), wherein the stator (1) has a first and a second pole plate (21.1, 21.2) which are arranged on the two axial sides of the stator (1), wherein the return spring (16) is arranged between the first pole plate (21.1) and the valve slide (15), and wherein the first pole plate (21.1) forms a plunger (17) for the valve slide (15).

The electromagnetic actuator (105) includes a coil element (110) having at least one coil core (135) and a coil (140) arranged circumferentially around the coil core (135), the coil core (135) having a rotationally symmetric first region (136) with an axis of symmetry (137), the first region (136) in which the coil core (135) is surrounded by the coil (140) in the circumferential direction, and an armature body (115) that cooperates with the coil element (110) for movement to actuate the armature body (115) and is actuated by a bearing device (106) on one side. and a movable magnetic armature body (115) as a movable actuator element supported on the motor (105) and movable from a first position (147) to a second position (149) by actuating the coil element (110), the support device (106) being arranged radially displaced with respect to a symmetry axis (137) of the coil core (135), the armature body (115) extending radially from the support device (106) through the coil core (135) from a first side (131) to a second side (132) of the coil core (135). The coil core (135) has a second region (138) that extends radially beyond the first region (136) and is disposed between the coil (140) and the armature body (115) in the direction of the axis of symmetry (137) on a second side (132) of the coil core (135), such that at a first position (147) of the armature body (115), a gap (190) between the coil core (135) and the armature body (115) in the direction of the axis of symmetry (137) is smaller on the second side (132) of the coil core than on the first side (131).

A system includes an electric actuator having an actuation stem, a screw assembly, an electric drive, and a lock. The screw assembly is coupled to the actuation stem, wherein the screw assembly includes a male screw portion coupled to a female screw portion. The electric drive is coupled to the screw assembly, wherein the electric drive is configured to move the screw assembly to move the actuation stem. The lock is configured to hold a position of the actuation stem when not driving movement of the actuation stem.

Systems and methods are disclosed for assessing the functionality of solenoid valve activation in peritoneal dialysis systems. In at least one embodiment, measurements of current values may be received from a solenoid valve at a predetermined sampling rate over a predetermine duration of time to generate a current profile for the solenoid valve. A fifth degree polynomial model may be fit to the current profile and optimized. The optimized polynomial model may be applied to a trained support vector machine to determine whether the current profile indicates that the corresponding solenoid valve has actually opened or closed.

An imaging lens driving module and an electronic device are disclosed. The imaging lens driving module includes an imaging lens group, a carrier element and a driving mechanism. The imaging lens group has an optical axis. The carrier element is configured to accommodate the imaging lens group and includes an assembly structure. The assembly structure is disposed on an outer surface of the carrier element and extends away from the optical axis. The driving mechanism is configured to drive the carrier element to move along a direction parallel to the optical axis and includes a coil set and a magnet. The coil set is disposed on the assembly structure and includes a bottom coil and a top coil. The bottom coil is wound around the assembly structure and in physical contact with the assembly structure. The top coil is stacked on the bottom coil, further away from the assembly structure than the bottom coil, and overlaps the bottom coil along the direction parallel to the optical axis. The magnet is disposed corresponding to the coil set. The same wire is used to wind the assembly structure, thereby saving the product cycle time.

A battery management system comprising one or more batteries 20 and electric circuitry connected to the batteries and further connectable to a power source 40 for charging and / or to an electric load 3

Solenoid valve with a valve housing (2) having an inlet port (3) and an outlet port (4), and with a fluid channel (10) extending through the valve housing (2) between the inlet port (3) and the outlet port (4), and with a valve body (8) linearly movable along an axis of movement (9) in the valve housing (2), which is designed for adjusting a free cross-section of the fluid channel (10), wherein a drive device (15) for introducing drive forces onto the valve body (8) is arranged in the valve housing (2), which comprises an electrical coil arrangement (16) and a permanent magnet arrangement (7), wherein the valve body (8) is provided with the coil arrangement (16) and the permanent magnet arrangement (7) is associated with the valve housing (2), and wherein the permanent magnet arrangement (7) comprises at least two permanent magnets (29, 30, 31) each with axial magnetization.the coils are spaced apart from each other in the axial direction with opposite polarization and wherein the coil arrangement (16) comprises at least two coil sections (17, 18, 19, 20) designed to provide oppositely oriented magnetic fields, wherein the coil sections (17, 18, 19, 20) are wound on a coil former (8) which is at least partially sleeve-shaped and which has several radially projecting, annularly circumferential separating sections (21, 22, 23, 24, 25, 26, 27, 28) serving to guide the coil former (8) in the valve housing (2) and wherein the valve body (8) and the permanent magnet arrangement (7) are designed for mutual sliding bearing.

An electromagnetic relay (1) comprises a contact part (2) and an electromagnet part (3). The electromagnet part (3) is an electromagnet device. In an off state of the electromagnet part (3), a movable element core (33) is at the illustrated base position. In an on state, the electromagnet part (3) moves the movable element core (33) in a first direction (AD1). The electromagnetic relay (1) has a magnetic bias device (8). The magnetic bias device (8) attracts the movable element core (33) in a second direction (AD2) with the magnetic force of a permanent magnet (81). The magnetic bias device (8) applies a biasing force to the movable element core (33) most strongly at the base position of the movable element core (33). However, as the movable element core (33) moves in the first direction AD1, the biasing force is rapidly lost. The magnetic bias device (8) suppresses incorrect behavior in an off state.

A moving core has a moving core main member made of soft magnetic materials and a permanent magnet member made of hard magnetic materials. A direction of the magnetic pole of the permanent magnet member matches that of a coil when the coil is positively energized with the forward current, and a stator core is non-existent in a range of movement of the permanent magnet member. Since there is the non-existent portion of the stator core in the range of movement of the permanent magnet member, it is possible to prevent generation of a magnetic flux loop of the magnetic field of the permanent magnet and it is possible to prevent a reduction of the attractive force.

A circuit interrupter includes a housing; line conductors; load conductors; an isolation switch assembly including isolation switches disposed within the housing, one solenoid actuator disposed external to the housing and between two line conductors, the one solenoid actuator structured to actuate the isolation switches to be open or closed based on a command signal, and an insulating connector connecting the isolation switches and the one solenoid actuator; and a power electronic module disposed within the housing and including a controller and electronic interrupters connected to the controller, the isolation switches and the load conductors, the controller structured to generate and transmit a control signal comprising the command signal to the electronic interrupters or the solenoid actuator, the electronic interrupters structured to allow the current to flow during normal operation and interrupt the current from flowing to the load in the event of a fault based on the control signal.

The invention relates to an electromagnetic valve (10), in particular for a cooling circuit of a motor vehicle, with features of claim 1 and a method for operating such an electromagnetic valve (10).

The invention relates to a method for fault diagnosis of a switching element (100) which has an electromagnet (101) and a switching piece (104) and which is configured to close or open an electrical connection (109) by moving the switching piece (104) by means of a magnetic field of the electromagnet (101).The method comprises the following steps: (i) opening or closing the switching element (100) by means of a control circuit (111), wherein the control circuit (111) includes a resistor (126) and a coil (102) of the electromagnet (101), the resistor (126) and the coil (102) being connected in parallel in the control circuit (111); (ii) performing a fault diagnosis of the switching element (100) by means of an evaluation criterion which takes into account the current (Ic) through the resistor (126) and / or the voltage (Uc) applied across the resistor (126) in response to the actuation of the switching element (100). The invention further relates to a corresponding control unit (130) and a computer program.

The present invention provides a laminate that can provide sufficient bonding force between multiple motor coil conductors and between motor coil conductors and insulating paper within the slots of a motor stator, a motor coil conductor using the above laminate, and a motor using the above motor coil conductor. [Solution] A laminate comprising an adhesive layer 1, an insulating film 2 made of polyphenylene sulfide, and an adhesive layer 3 in this order, wherein the adhesive layer is heat-foaming and the adhesive layer is non-foaming.

The invention relates to a magnetic actuator (1) comprising: - a magnetic core (2), - a pilot coil (4), and - a housing (5), configured to form with at least the magnetic core (2) at least one magnetic circuit (6). This magnetic actuator (1) is particular in that the housing (5) has a movable section (7) that can be placed: - either in a closed position, in which the magnetic flux generated by the pilot coil (4) can be used to control the position of the magnetic core (2), - or in an open position, in which the magnetic core (2) is attracted and held in one of its extreme positions. The invention also relates to a method for disengaging a magnetic actuator (1) according to the invention, and an electrical disconnect device (12) incorporating a magnetic actuator (1) according to the invention. Figure for the abstract: Fig 5

A linear electrical machine including a frame with a level reference plane, an array of electromagnets connected to the frame and coupled to an alternating current power source energizing each electromagnet, at least one reaction platen of paramagnetic, diamagnetic, or non-magnetic conductive material disposed to cooperate with the electromagnets of the array of electromagnets so that excitation of the electromagnets with alternating current generates levitation and propulsion forces against the reaction platen that controllably levitate and propel the reaction platen along at least one drive line, in a controlled attitude relative to the drive plane, and a controller operably coupled to the array of electromagnets and the alternating current power source and configured so as to sequentially excite the electromagnets with multiphase alternating current with a predetermined excitation characteristic so that each reaction platen is levitated and propelled with up to six degrees of freedom.

The invention relates to a method for controlling a longitudinal slide valve (1) with an electromagnetically controlled longitudinal slide (2) actuated by a spring force, which is movable back and forth between two end positions (5, 7) defined by mechanical stops and at least one intermediate position (6). To improve the actuation of the longitudinal slide valve (1), the longitudinal slide (2) is actuated with a decaying superimposed oscillation when its intermediate position (6) is actuated in such a way that the longitudinal slide (2) is specifically stimulated to additional movements which serve to bring the longitudinal slide (2) quickly and precisely into its intermediate position (6) when there is an occurrence of frictional forces between moving and stationary valve components which are undesirable in themselves.

A safety valve for gas appliances comprising: an electromagnet (2) including a coil (9) having a phase wire (9a) and a ground wire (9b) and a protrusion (11) having a phase contact area (12) in contact with the phase wire (9a), a valve seat (30) connected to the ground wire (9b), a phase closing body (20) in contact with the phase contact area (12), a printed circuit board (40) in contact with the phase closing body (20), and an electrical connector (60) having a phase terminal (62) and a ground terminal (63) connected to the phase wire (9a) and the ground wire (9b) through the printed circuit board (40). The printed circuit board (40) is accommodated in the valve seat (30) in an elastically deformed and curved state, ensuring a constant contact pressure with the phase closing body (20) and the valve seat (30).

The invention discloses a long-stroke proportional electromagnet which solves the problems that in the prior art, the displacement control precision of a proportional electromagnet is insufficient, and hovering at any position cannot be achieved. The device comprises a coil magnetic field unit and an armature magnetic field unit, the armature magnetic field unit is slidably arranged in the coil magnetic field unit, a reset assembly is arranged between the armature magnetic field unit and the coil magnetic field unit, the coil magnetic field unit is powered on, a coil generates a magnetic field, and the coil magnetic field unit and the armature magnetic field unit act to generate displacement. When the coil magnetic field unit is powered off, the reset assembly assists the armature magnetic field to return. The device is arranged in a modular nested mode along the axis, the coil magnetic field unit provides a controllable alternating magnetic circuit, the armature magnetic field unit achieves long-stroke stepless displacement under the magnetic coupling effect, and the reset assembly provides non-lagging return after power failure. The whole device forms a closed magnetic loop through an end cover-connecting rod system, has the functions of magnetic shielding and structure supporting, and is suitable for high-humidity and high-dust industrial environments.

According to the invention, there is provided an arrangement of an electromechanical lock (100) comprising a rotor (102) comprising at least one movable magnet (104) and at least one actuation element (106), at least one stationary magnet (108) with a coil (110), wherein the coil (110) is configured, under control of a processing circuitry (122), to change a polarity of the stationary magnet (108) between a first and a second magnetization configuration (MC1, MC2), wherein the first magnetization configuration (MC1) is configured to turn the movable magnet (104) with the rotor (102) to a first position (P1), and the second magnetization configuration (MC2) is configured to turn the movable magnet (104) with the rotor (102) to a second position (P2), and a coupling element (112), wherein in the first position of the rotor (P1) the actuation element (106) is positioned to enable moving of the coupling element (112) towards the rotor (102) to set the coupling element (112) to an uncoupled state (US), and in the second position of the rotor (P2) the actuation element (106) is positioned to limit moving of the coupling element (112) towards the rotor (102) such that the coupling element (112) stays in a coupled state (CS).

A computer-implemented method for estimating a health state of a solenoid valve including a solenoid for supporting a process control system. The method includes the steps of monitoring a current passing through the solenoid, determining a time period between an instant of initiating a state change of the solenoid valve and an instant when the time derivative of the current is discontinue, comparing the time period with a reference time period indicative for the health state of the solenoid valve thereby determining the health state.

Techniques for latching a shaft assembly with an integrated system are discussed herein. The integrated system including a nuclear reactor configured to raise a stem of the shaft assembly into a hold out. The hold out can include a sleeve, and metallic balls, the metallic balls being positioned in openings of the sleeve. The hold out can include a housing positioned around the sleeve and the metallic balls. The housing can include a gap that is narrower than a chamber of the housing. The hold out can include a spring coupled to the sleeve. The hold out can include an electromagnetic coil configured to engage the spring and the sleeve to raise the stem until the metallic balls are moved from positions between the gap of the housing and the stem, to positions between the chamber of the housing and the stem.

The aim of the invention is to provide a solenoid valve (1) with a valve housing (2), in which an electric coil (3) and a solenoid armature (5) are arranged, and a valve element (8), which can be actuated in an axial actuation direction by the solenoid armature (5), for opening and closing the solenoid valve (1), wherein a valve stroke of the valve element (8) can be limited in a simple manner. According to the invention, this is achieved in that the coil (3) is arranged on a coil support (4), and an end section (4a) of the coil support (4), said section axially facing the solenoid armature (5), is designed as an end stop for the solenoid armature (5) in order to limit the axial movement of the solenoid armature (5). The coil support (4) is made of plastic, and the coil (3) is at least partly integrated into the coil support (4).

An optical system includes a sensing assembly and a processing circuit. The sensing assembly is configured to sense light and output a sensing signal accordingly. The processing circuit is configured to analyze the sensing signal. The processing circuit is configured to output a main judgment signal to an external circuit according to the sensing signal.