157 results about "Magnetic wires" patented technology

The multiple rotation angle detection device includes a segment counter that counts segments obtained by dividing one rotation period of a rotating body into two in an angle range exceeding one rotation to generate a count value, a precision absolute angle detector that generates an absolute angle detection value within one rotation period with high resolution, and a calculation device that integrates the count value and the absolute angle detection value to generate a multiple rotation absolute angle detection value. The segment counter includes a power generation sensor, a magnetic field generation source, a sensor element, and a non-volatile memory that stores the count value and information that can identify pulse information. The pulse information includes the output state of the sensor element and the polarity of the pulse voltage. The magnetic field generation source applies an alternating magnetic field of two periods per rotation in the axial direction of the magnetic wire. When power is supplied from an external source, the calculation device performs calculation for integration using the count value stored in the non-volatile memory and the information that can identify pulse information.

The utility model belongs to the technical field of magnetic separators, and particularly relates to an electromagnetic separator with a heat dissipation coil, which comprises a frame, a conveying mechanism mounted on the frame, a transmission mechanism connected with the conveying mechanism, and a magnetic separation mechanism mounted on the frame. The magnetic separation mechanism comprises a shell, a winding reel is mounted in the shell, the winding reel is connected with a mounting frame, and a mounting ring is mounted on the mounting frame; each installation ring is provided with a plurality of winding supporting rods, electromagnetic wires are wound around the outer sides of the winding supporting rods of the installation rings, the electromagnetic wires sequentially wind around the winding supporting rods of the installation rings from inside to outside along the centermost installation ring, and a heat dissipation gap is reserved between every two electromagnetic wire layers. By arranging the mounting ring and the winding supporting rod, a plurality of gaps are reserved between the electromagnetic coils, heat dissipation of the electromagnetic coils is facilitated, the ventilation holes, the draught fan, the coil pipe, the oil cooler and the temperature sensor are additionally arranged, the temperature in the magnetic separation mechanism can be detected and adjusted in real time, and normal operation of the device is guaranteed.

A position detection device includes: a first support; a second support that is movable relative to the first support; a power generation sensor disposed on the first support; and a magnetic field generation source fixed to the second support. The relative movement of the second support causes a plurality of magnetic poles having the same polarity to sequentially enter the detection region of the power generation sensor. The power generation sensor includes: a magnetic wire configured to exhibit a large Barkhausen effect; a coil wound around the magnetic wire; and a first magnetic flux conducting piece and a second magnetic flux conducting piece respectively magnetically coupled to the opposite end portions of the magnetic wire and each having a magnetic flux conducting end opposed to the detection region.

A multiturn angle detection device generates the multiturn absolute angle detection value of a rotating body. The multiturn angle detection device includes: a segment counter; a precision absolute angle detector; and an arithmetic device to generate the multiturn absolute angle detection value by combining the outputs of the segment counter and the precision absolute angle detector with each other. The segment counter includes: a single power generation sensor; a magnetic field generation source; a sensor element; and a nonvolatile memory to store a count value. The magnetic field generation source applies a k-cycle alternating magnetic field (wherein k is an integer not smaller than 3) per each turn of the rotating body axially of a magnetic wire. The arithmetic device uses the count value stored in the nonvolatile memory as it is, and combines the count value with the absolute angle detection value of the precision absolute angle detector.

The invention belongs to the technical field of robot milling vibration control, and particularly relates to a three-dimensional unit cell type vibration absorber for restraining variable flutter during robot milling and a design method of the three-dimensional unit cell type vibration absorber. The vibration absorber comprises a plurality of magnetic conductive balls, a plurality of magnetorheological elastomers, a magnetic conductive block, an electromagnetic coil, an upper wall, a lower wall and four side walls. The upper wall, the lower wall and the four side walls form a cubic structure, the electromagnetic coil sleeves the outer walls of the four side walls, and the magnetic conductive block sleeves the outer wall of the electromagnetic coil and is connected with the upper wall and the lower wall; the three-dimensional unit cell type vibration absorber is of a central symmetry structure. The plurality of magnetic conductive balls are arranged in the cubic structure according to the form of the body-centered cubic structure, the inner wall of the cubic structure is connected with the magnetic conductive balls, and the magnetic conductive ball located at the body center is connected with the magnetic conductive balls located at the eight vertex angles through the magnetorheological elastomer. The whole structure has three-dimensional symmetry, so that the structure can still keep stable under any rotating posture of the robot, modals of different directions and frequencies of the robot can be restrained, and the restraining effect is good.

A multiturn angle detection device includes: a segment counter to count segments in an angular range over the single turn of a rotation shaft; a precision absolute angle detector to generate an absolute angle detection value within the single-turn cycle; and an arithmetic device to generate a multiturn absolute angle detection value by combining the output of the segment counter with the output of the precision absolute angle detector. The segment counter includes: a single power generation sensor; a magnetic field generation source; a sensor element; and a nonvolatile memory to store a count value. The magnetic field generation source applies a two or more-cycle alternating magnetic field per each turn of the rotation shaft axially of a magnetic wire. The arithmetic device uses the count value stored in the nonvolatile memory as it is when receiving external electric power supply.

The invention discloses a magnetic circuit combination structure of an electromagnetic valve, and relates to the technical field of electromagnetic valves. Comprising an electromagnetic wire winding support, a magnetic conductive frame, a magnet, an upper fixed iron core, a lower fixed iron core, a movable iron core, movable iron core sealing soft rubber, an electromagnetic coil and a magnetic conductive frame fixing piece. A magnet is placed on the inner side of the magnetic conductive frame, the magnetic conductive frame, the matched magnetic conductive frame fixing piece, the upper fixed iron core and the lower fixed iron core are assembled together to form a complete magnetic field loop, and the assembled magnetic field loop wraps or surrounds the electromagnetic wire winding support so that a complete magnetic field encirclement ring can be formed in the center of the electromagnetic wire winding support. A through hole is formed in the center of the electromagnetic winding support, the electromagnetic winding support, the upper fixed iron core and the lower fixed iron core are assembled to form a closed movable iron core moving cavity, the movable iron core moving cavity is used for containing a movable iron core, and the electromagnetic wire winding support is provided with an electromagnetic coil position used for winding an electromagnetic coil. The movable iron core is driven to move by instantly electrifying the electromagnetic coil and changing the electrode direction of the electromagnetic coil to generate electromagnetic force in different directions, and the movable iron core is attracted to the upper fixed iron core or the lower fixed iron core through the magnetic field loop under the condition that the electromagnetic coil is stopped being electrified, so that the effect of stabilizing the switch valve is achieved. The structure design is reasonable, the production efficiency is high, the stroke of the movable iron core is large, the movable iron core is adsorbed and fixed by magnetic force when the valve is opened and closed, the performance is stable, and high practicability is achieved.

The present invention relates to a DCT superconducting magnet structure, characterized by comprising a cylindrical electromagnetic wire formed by a plurality of monopole coils, the cylindrical electromagnetic wire being solidified on a skeleton to form a magnet structure, and the monopole coils being connected in series. Each monopole coil includes N turns of electromagnetic wire arranged in a spaced-apart arrangement, where N is an integer representing the total number of turns of electromagnetic wire in the monopole coil. The proposed DCT superconducting magnet structure can generate a high-quality multipolar magnetic field without requiring an iron core. The cylindrical structure enables a multi-layer nested structure, making it suitable for applications with varying apertures and magnetic field requirements, thus possessing a wide range of applications.

The present disclosure provides "Asymmetric wire insulation for traction motor stators." A stator assembly is presented. The stator assembly includes a stator core defining slots and magnetic wires positioned within the slots. Each magnetic wire includes a conductive core and an insulation layer surrounding the core. The insulation layer can have a varying thickness, with thinner portions spanning certain sides of the wire and thicker portions spanning other sides.

The utility model discloses a low damping pulsation electromagnetic pump, including pump shell, pump core, solenoid and elastic reset piece, the solenoid is sleeved in the outside of pump shell, be equipped with the water passageway and be equipped with the water inlet and the water outlet of water passageway both ends in the pump shell, the pump core is under the action of the magnetic field of solenoid and the elastic reset piece and reciprocates in the water passageway, be equipped with the Tesla valve flow channel in the pump core, the both ends of Tesla valve flow channel have positive and negative direction mouth, the positive direction mouth is linked together with the water inlet, the negative direction mouth is linked together with the water outlet. The utility model discloses an electromagnetic pump, still guarantee electromagnetic pump to have the water pumping capacity and the effect of accelerating and pressurizing to water flow under the condition of not using check valve, because of not having check valve, the water pressure loss is smaller. In addition, the utility model discloses a kind of intelligent closestool using above-mentioned low damping pulsation electromagnetic pump.

The motion detection device (5) includes a first support (51), a second support (52) that moves relative to the first support, a power generation sensor (100) disposed on the first support, and a magnetic field generating source (400) supported on the second support. The power generation sensor includes a magnetic wire (110), a coil (120), and a magnetic flux conducting plate (130, 131). The magnetic flux conducting plate includes an axially orthogonal portion and an axially parallel portion, and has a wire arrangement portion that fixes the axially orthogonal portion and both ends of the magnetic wire. The power generation sensor is configured such that the side opposite to the magnetic wire is set as the detection area (140) relative to the axially parallel portion. The magnetic field generating source has multiple magnetic poles. Magnetic poles of different polarities enter the detection area sequentially along a track (30) parallel to the axis of the magnetic wire and are opposite to the power generation sensor. The magnetic flux direction of each magnetic pole is perpendicular to its direction of movement and is the direction that intersects with the magnetic wire.

The invention provides a multi-rotation angle detection device which generates a multi-rotation absolute angle detection value of a rotating body rotating around a rotation axis. A multi-rotation angle detection device includes: a segment counter that counts segments in an angle region in which rotation exceeds one time, the segments being divided into one rotation cycle of a rotating body; a precision absolute angle detector that generates an absolute angle detection value for one rotation period of the rotating body; and a calculation device that integrates the outputs thereof and generates a multi-rotation absolute angle detection value. The segment counter includes a power generation sensor, a magnetic field generation source, a sensor element, and a non-volatile memory storing a count value. The magnetic field generation source applies an alternating magnetic field of k cycles (k is an integer of 3 or more) to the axial direction of the magnetic wire every time the rotating body rotates. When the arithmetic device receives the external power supply, the counting value stored in the nonvolatile memory is directly used for integrating the absolute angle detection value of the precise absolute angle detector.

The rotation detection device includes an annular multi-pole magnet provided on a rotating shaft and a power generation sensor that detects a magnetic field that changes with rotation of the multi-pole magnet. The power generation sensor includes a magnetic conductive wire exhibiting a large Barkhausen effect, a coil wound around the magnetic conductive wire, and a pair of magnetic flux conduction sheets comprising soft magnetic members magnetically coupled to both ends of the magnetic conductive wire, respectively. The annular multi-pole magnet has a magnetization pattern inclined with respect to the rotation axis at the outer peripheral portion. The power generation sensor faces the magnetization pattern of the multipole magnet in a posture in which the axial direction of the magnetic wire is parallel to the rotation axis.

The utility model relates to the field of mining area electromechanical equipment maintenance, in particular to an electromagnetic induction type flexible heating device which comprises an outer box body and a heating device, heat dissipation holes are formed in the surface of the outer box body, moving wheels are arranged at the bottom of the outer box body, and a control panel is arranged on the side of the upper end face of the outer box body. The heating device is composed of a frame, a heat preservation cylinder and an electromagnetic cable, the frame is of a cylindrical structure design, the heat preservation cylinder wraps the outer side of the frame, the upper end and the lower end of the heat preservation cylinder are fixedly connected with the frame, and the electromagnetic cable is arranged on the inner side of the frame in a winding mode. The two ends, extending to the outer side of the heat preservation cylinder, of the electromagnetic cable are each provided with a power connection plug. The utility model has the advantages of low energy consumption, electricity saving, high heating speed, no pollution, no noise, no need of preheating, difficulty in oxidation, convenience in gas protection, automatic control, safety, reliability, easiness in operation, capability of continuously working and the like.

A medical device for retrieval of kidney stone fragments from a urinary tract is provided. The medical device has a plurality of magnets arranged within a flexible sheath forming a flexible wire. The magnets are magnetically attached end-to-end and arranged with their magnetic polarities alternating in direction. The magnetization direction of each of the magnets is orthogonal to the length axis of the flexible wire. A removable inner stylet is situated within the flexible sheath allowing for modifiable flexibility of the wire. The medical device is dimensioned to be introduced into the urinary tract and standard endoscopic devices. The medical device is further dimensioned to allow for the wire with magnetically attached stone fragments to be retrieved from the urinary tract. The magnetic field along the length axis is sufficient to attract to the surface of the flexible wire superparamagnetic nanoparticles which have bound themselves to kidney stone fragments.

Provided is a magnetic wire material containing an alloy containing 40 mass % or more and 50 mass % or less of Ni, with the balance being Fe and unavoidable impurities, in which in a cross section of the wire material along an axial direction thereof, a proportion of a crystal structure in which an angle difference between the axial direction and a <111> direction is 10° or less is 20% or more.

One aspect of the present disclosure provides an electric work machine with a brushless DC motor. A stator of the brushless DC motor includes a conductive member stacked on a yoke of the stator via an insulator of the stator in an axial direction of a rotation axis of the brushless DC motor. A first connector in the conductive member is aligned with a second connector in the conductive member across the axial direction. The first connector and the second connector overlap an axially extended region of coils on the stator, when viewed from a direction perpendicular to the axial direction. The first connector and the second connector are coupled respectively to a first end and a second end of at least one magnetic wire of the coils.

A stator assembly is presented. The stator assembly includes a stator core defining slots and magnetic wires positioned within the slots. Each magnetic wire includes an electrically conductive core and an insulation layer surrounding the core. The insulation layer may have a varying thicknesses, with thinner portions spanning certain sides of the wires and thicker portions spanning other sides.

The present invention relates to a loudspeaker element for a loudspeaker, comprising two membrane planes substantially spaced apart from each other, wherein each membrane plane comprises at least one electromagnetic wire, which is arranged to generate a magnetic field when an electric current passes through the electromagnetic wire, wherein at least one permanent magnet is arranged between the two membrane planes, wherein the electromagnetic wires of the two membrane planes can be connected to a power supply in such a way that current passes through the electromagnetic wires in substantially opposite directions, thereby generating substantially opposite magnetic fields, so that when an electric current passes through the electromagnetic wires of each membrane plane, the membrane planes are attracted toward the permanent magnet or repelled from the permanent magnet, and thereby move toward or away from each other, respectively, thereby generating sound waves.

Disclosed herein is an apparatus for separation of diamagnetic particles of sub-micron diameter from a fluid. The disclosed apparatus includes a first magnetic coil including a hollow center and a separation unit including an outer enclosure and a second magnetic coil. The second magnetic coil includes a single-layer of windings of a magnetic wire and at least one nonmagnetic wire on a nonmagnetic core where the first magnetic coil houses the separation unit in the hollow inner center. Also disclosed herein is a method of using the apparatus.

The invention discloses an immersion type magnetic field auxiliary electrochemical mechanical polishing device of an additive manufacturing space lattice dot matrix, which comprises a main shaft system unit, the main shaft system unit comprises a Z-direction linear module, a Y-direction linear module, a main shaft motor and a main shaft, the Z-direction linear module is mounted on the Y-direction linear module in a matched manner, the main shaft motor is mounted on the Z-direction linear module, and the main shaft motor is mounted on the Y-direction linear module; the output end of the spindle motor is connected with the spindle which is provided with a clamp used for clamping a workpiece in a matched mode. The electrolytic bath is filled with electrolyte and magnetic abrasive particles, and the electrolytic bath is provided with a cathode; the magnetic field generator comprises a plurality of electromagnetic coils, the electromagnetic coils sleeve the outer side of the electrolytic bath, and a magnetic field is formed in the electrolytic bath by adjusting the current and phase of each electromagnetic coil; the cleaning tank is used for cleaning the workpieces; and the controller is used for controlling the working operation state of the device, the device is used for efficiently treating the space lattice dot matrix through the cooperation of electrochemical corrosion and mechanical friction, and the surface quality and smoothness of the lattice dot matrix are improved.

1. Name of the designed product: magnetic wire arranging device (360° rotation). 2. Use of the designed product: the designed product is used for arranging and fixing data lines. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view 1.

This application discloses an immersion magnetic field-assisted electrochemical mechanical polishing device for additive manufacturing of space lattice points, comprising: a spindle system unit, which includes a Z-axis linear module, a Y-axis linear module, a spindle motor, and a spindle. The Z-axis linear module is mounted on the Y-axis linear module, and the spindle motor is mounted on the Z-axis linear module. The output end of the spindle motor is connected to the spindle, and the spindle is fitted with a clamp for holding the workpiece; an electrolytic cell, which is filled with electrolyte and magnetic abrasive particles, and has a cathode; a magnetic field generator, which includes multiple electromagnetic coils, which are sleeved on the outside of the electrolytic cell. By adjusting the current and phase of each electromagnetic coil, a magnetic field is formed inside the electrolytic cell; a cleaning tank for cleaning the workpiece; and a controller for controlling the working state of the device. This device uses electrochemical corrosion and mechanical friction in combination to efficiently process the space lattice points, thereby improving the surface quality and smoothness of the lattice points.

To provide a magnetic field detection element capable of reducing the distance between a magnetic wire and a detection coil, thereby mitigating sensitivity attenuation.SOLUTION: A magnetic field detection element 1 includes a substrate 2 having a groove 3, a magnetic wire 5 arranged in the groove 3, and a detection coil 4 surrounding the magnetic wire 5. The detection coil 4 has a lower coil 42 positioned within the groove 3 and an upper coil 41 connected to the lower coil 42. The upper coil 41 is provided with a recess 41a that concaves towards a gap s between the lower coil 42 and the magnetic wire 5.SELECTED DRAWING: Figure 2

The invention relates to a magnetic sensor and a magnetic sensor device. A region in which a component other than a magnetic sensor or a magnetic sensor device is disposed is added on a component mounting surface of a substrate on which the magnetic sensor or the magnetic sensor device using a large Barkhausen effect is disposed. A magnetic sensor (1) is provided with a magnetic wire (2) that plays a large Barkhausen effect, a coil (3), and a bobbin (4) having a wire winding part in which the magnetic wire is disposed and the coil (3) is provided on the outer periphery thereof, and a pair of pillar parts (7) provided on both end portions of the wire winding part, respectively. The pair of pillar portions respectively protrude downward from both end portions of the wire winding portion, and the protruding amount of the pair of pillar portions is set such that, when the magnetic sensor (1) is mounted on the substrate (11), a component placement space (8) in which a component (12) can be placed is formed between a portion of the outer peripheral surface of the coil facing the component placement surface (11A) and the component placement surface.

The utility model relates to a heat humidifier based on electromagnetic heating. The heat humidifier comprises an upper cover assembly, an inner container assembly and a machine body assembly. Wherein the upper cover assembly is arranged above the machine body assembly and detachably connected with the machine body assembly, and the inner container assembly is arranged in the machine body assembly; an electromagnetic disc is arranged at the bottom of the machine body assembly, the inner container assembly comprises a transparent glass inner container and a magnetic conductive sheet arranged in the glass inner container, and the magnetic conductive sheet is in a heating state when the electromagnetic disc emits an electromagnetic wire; compared with the prior art, according to the technical scheme, through electromagnetic heating and a split structure, the heating efficiency and cleaning convenience of the heat humidifier are improved, and the problems that a traditional heat humidifier is large in energy loss, difficult to clean and the like are solved.

The invention discloses a crawler-type unmanned grooving machine which comprises a frame assembly, crawler power assemblies are arranged on the front side and the rear side of the frame assembly, and the crawler-type unmanned grooving machine is characterized in that an overturning plate is hinged to the frame assembly, and a grooving assembly for grooving the ground is arranged on the overturning plate; a plurality of magnetic conduction assemblies are fixedly arranged on the lower side of the turnover plate and the bottom of the frame assembly and used for establishing signal induction with magnetic wires arranged on the ground, so that a groove is machined in the ground through the grooving assembly while the crawler power assembly drives equipment to operate; according to the equipment, the crawler belt power assembly, the grooving assembly, the crawler belt and the magnetic conduction assembly are arranged, a temporary magnetic wire is arranged on the ground, the equipment can cut and machine grooves at equal intervals along the magnetic wire, the grooves are used for containing the magnetic wire used for a long time, the equipment working process can be automatically completed without manual operation, and high efficiency is achieved.

The invention relates to a gripper device (1) for a robot arm of a robot for gripping or releasing an object, comprising at least one finger unit (2) and a sensor device for measuring a temperature, a pressure, a voltage, a magnetic field and / or a linear position on the at least one finger unit (2). • at least one bistable magnetic wire (3) arranged in the area of ​​a surface of the at least one finger unit (2), • at least one excitation element (4) for generating a magnetic field, wherein the at least one excitation element (4) is arranged within reach of the at least one bistable magnet wire (3) on the at least one finger unit (2), • at least one sensor element (5) for receiving a response from the at least one bistable magnet wire (3), wherein the at least one sensor element (5) is arranged within range of the at least one bistable magnet wire (3) on the at least one finger unit (2), and • a signal processing unit (6) which is connected to the at least one excitation element (4) and the at least one sensor element (5) for signal transmission and is configured to generate and receive electrical signals. Furthermore, the invention relates to a robot comprising at least one robot arm with such a gripper device (1).