668results about "Permanent magnets" patented technology

The present invention is in the field of a National Individual Floating Transportation Infrastructure (NIfTI) wherein floating vehicles can travel by magnetic levitation and propagation. The vehicles can travel at a controllable height above the existing, albeit modified, road infrastructure and at relatively high speeds.

An aircraft stair system is provided with flexible bumpers configured to prevent abrupt impact of the first structure against the second. Each of the bumpers has a flexible body, a base portion, and a lever arm extending out over the base to create a gap and an open end.

The proposed invention relates to household items, more specifically to brackets for placing a product or device on a vertical surface, and can be used in everyday life. A bracket with a magnetic element for a vertically placed product is proposed. The technical result achieved by implementing the claimed invention, in addition to the invention realizing its purpose, is the elimination of the disadvantages of analogues and thus ensuring the rapid disconnection of the bracket and the product or device placed on it, while ensuring the usual reliability of placing the product or device on a vertical surface. Another technical result is the expansion of the arsenal of technical means - brackets for products and devices.

The invention provides an electronic anti-theft device for mobile phone display, which comprises an alarm host, a connecting assembly and an anti-theft claw assembly, and is characterized in that the connecting assembly is rotatably mounted at the top end of the alarm host, and the anti-theft claw assembly is fixedly mounted at the top end of the connecting assembly; the alarm host comprises an outer cylinder, a connecting disc is installed at the inner top end of the outer cylinder, a connecting cavity is formed in the center of the connecting disc, a first circuit board is fixedly installed on the outer side close to the connecting cavity, and multiple sets of contact pins are installed at the top end of the first circuit board. According to the invention, a magnetic rotary connection structure is adopted, so that the connection assembly and the alarm host can be rapidly installed and separated in a counterpoint manner without bonding, the replacement efficiency of a mobile phone and the reuse convenience of the connection assembly are remarkably improved, and meanwhile, the problem of cleaning residual glue is avoided; in cooperation with the rotary installation design of the connecting assembly, a user can freely rotate the fixed mobile phone, multi-angle flexible display is achieved, and the product display adaptability is greatly improved.

The invention provides a magnetic conductive device and method, electronic equipment, a storage medium and a program product, and the device comprises a magnetic ring powder cavity which is used for accommodating magnetic ring powder; the magnetizing coil is used for charging to generate a magnetic field; the first magnetic conduction section is used for receiving the magnetic field, so that the magnetic ring powder is subjected to main path magnetic conduction; the second magnetic conduction section is connected to one side of the first magnetic conduction section and is used for inhibiting a receiving magnetic field, so that non-main-path radial or axial magnetic conduction of the magnetic ring powder is reduced; and the third magnetic conduction section is connected to the other side of the first magnetic conduction section and used for restraining the receiving magnetic field, so that non-main-path radial or axial magnetic conduction of the magnetic ring powder is reduced. In this way, the magnetic conductive device is definitely segmented into a plurality of magnetic conductive sections. In the magnetizing process, the magnetic field can be distributed along the preset main path more intensively through the synergistic effect of all the magnetic conduction sections, magnetic field dispersion in the non-main-path radial direction or the axial direction is effectively reduced, the magnetic performance is improved, the expectation can be achieved, and the magnetizing device can adapt to various scenes.

The utility model discloses a magnetic attraction device. The magnetic attraction device comprises a magnetic attraction assembly and a top plate. The magnetic attraction assembly comprises a base and a magnetic attraction piece, and the magnetic attraction piece is installed on the base and provided with a first surface used for attracting magnetic attraction equipment. The side, away from the base, of the top plate is provided with a second surface. The top plate has a first state and a second state. When the top plate is in the first state, the second surface is parallel to the first surface. When the top plate is in the second state, the second surface inclines relative to the first surface, so that at least part of the top plate protrudes out of the first surface in the direction away from the base, the magnetic attraction equipment is effectively pushed away from the first surface, a user can conveniently take down the magnetic attraction equipment in a labor-saving mode, and the use experience is improved.

The invention discloses a neodymium-iron-boron rare earth permanent magnet, a preparation method and use thereof. The neodymium-iron-boron rare earth permanent magnet comprises: R: 28.5-33 wt %, wherein RL comprises Pr, Pr≥14 wt %, and RH comprises one or more of Dy, Tb, Gd and Ho; Co: 12-20 wt %; Al: 0.5-1.5 wt %; X: 0.3-1.5 wt %; B: 0.88-1.05 wt %; and a balance of Fe, the microstructure thereof comprises a main phase M, a grain boundary phase A and a grain boundary phase B; the main phase M is R2(Fe, Co)14B having a volume percentage of 90-94%; the grain boundary phase A is R(Fe, Co)2 having a volume percentage of 5-8%; and the grain boundary phase B is R4(Fe, Co)3 having a volume percentage of 1-2%. The neodymium-iron-boron rare earth permanent magnet has a high Co content, a high Curie temperature, a low temperature coefficient, good mechanical properties, a high magnetic energy product and a high coercive force.

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.

The invention relates to the technical field of sintered permanent magnets for motors, in particular to a high-density anisotropic manganese-bismuth sintered permanent magnet for a motor and a preparation method of the high-density anisotropic manganese-bismuth sintered permanent magnet. By combining vacuum rapid hardening for preparing uniform sheets, two-stage long-time heat treatment for optimizing the LTP-MnBi phase content, magnetic field orientation and isostatic pressing forming and a key two-stage low-temperature sintering process, high densification and grain orientation of the magnet are successfully realized under the condition far lower than the LTP-MnBi phase decomposition temperature. The technical problem that high densification of a block magnet is difficult to realize on the premise of avoiding LTP-MnBi phase decomposition in the prior art is solved, so that the manganese-bismuth sintered permanent magnet with high density, high coercive force and good anisotropy is prepared, and a foundation is laid for application of the manganese-bismuth sintered permanent magnet in a high-temperature motor.

This invention discloses a magnetic permeation device and method for guiding the deflection of single-quantum-state atoms. The magnetic permeation device includes a vacuum chamber, a connecting frame, and several magnetic permeation components. A high-vacuum chamber is formed within the vacuum chamber. The connecting frame is mounted on the inner wall of the vacuum chamber. Several magnetic permeation components are arranged in an arc shape on the connecting frame. An atomic channel is located at the center of each magnetic permeation component. The atomic channels on the several magnetic permeation components are sequentially connected to form an arc-shaped atomic channel with a non-uniform gradient magnetic field, used to drive the atom deflection. Based on the atom Zeeman effect, this application sets up magnetic permeation components to enable controllable deflection of atoms within the arc-shaped atomic channel, achieving specific-angle deflection transmission of a neutral atom beam and achieving a velocity filtering effect for atoms.

A solid-core ring-magnet having one or more cavities is provided. The magnet can have an overall cylindrical shape or a rectangular-prism shape. In either case, a portion of cavity walls of the magnet are ring shaped, causing the magnetic field lines to emanate from the magnet so that the bead formation is in the shape of a ring. A bead separation magnet having a discontinuous or segmented cavity wall is also provided. The segmented cavity wall causes bead formation to form in a segmented or gapped ring to allow for easier manual pipetting. Also provided are systems and kits having the inventive magnets. Methods of purifying a macromolecule using the inventive magnets are also provided.

According to various embodiments of the present disclosure, an electronic device may include: a display; a coil; a magnet assembly including a plurality of first magnets disposed to surround the coil and a plurality of second magnets disposed to surround the plurality of first magnets at positions spaced apart from the plurality of first magnets by a predetermined distance; a first magnetic field shielding sheet extending along the magnet assembly in a direction toward the display and attached to the magnet assembly; a second magnetic field shielding sheet disposed between the coil and the display in a direction from the first magnetic field shielding sheet toward the display; and a third magnetic field shielding sheet disposed between the display and the second magnetic field shielding sheet. Various embodiments may be possible in addition to the various embodiments disclosed in this document.

A cover for a watercraft includes a cover body connectable to the watercraft, and a fastening system coupled to the cover body. The fastening system being operable to selectively apply tension to the cover body. At least one attachment feature is arranged at an underside of the cover body. The at least one attachment feature is engageable with a receiving feature of the watercraft to restrict movement of the cover relative to the watercraft when the cover is not tensioned.

A magnetic device for magnetically coupling to a ferromagnetic body, comprises a housing having a central bore. A plurality of pole sectors arranged within an envelope of the central bore and forming a workpiece contact interface of the magnetic device, each of the plurality of pole sectors comprising a plurality of spaced-apart pole portions arranged at respective distances, wherein a recess of a plurality of recesses separates each pole portion of the plurality of pole portions, wherein a first sector forms a first pole of the magnetic device and a second sector forms a second pole of the magnetic device. A first permanent magnet. A second permanent being moveable relative to the first permanent magnet. And, an actuator operatively coupled to the at least one second permanent magnet to move the at least one second permanent magnet relative to the at least one first permanent magnet.

The invention relates to a method (40) for mounting a permanent magnet (30), which has a reservoir (36) on its outer side, on a magnet carrier (26) which has a pocket (28). The reservoir (36) is filled with an adhesive (38), and the permanent magnet (30) is inserted into the pocket (28). The adhesive (38) is subsequently cured. The invention further relates to an electric machine (4).

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 present disclosure provides various cards (e.g., payment cards, identification cards, driver's license cards) that are removably attachable to a portable electronic device. In some aspects, the portable electronic device may include a charging coil, a ferromagnetic component disposed about the charging coil, and a ferromagnetic alignment component. The card can include a substrate and a magnet embedded the substrate. The magnet can magnetically couple to the ferromagnetic component disposed about the charging coil.

The utility model discloses an antiskid device and gateway equipment, and relates to the technical field of communication equipment. The device comprises a cover plate, a magnetic column, a reset spring and a coil. The cover plate is fixedly connected with an anti-skid base of the electronic equipment, one end of the magnetic column penetrates through the anti-skid base, and the magnetic column is movably connected with the anti-skid base. The reset spring is arranged on the magnetic column in a sleeving mode and located between the magnetic column and the anti-skid base, and when the reset spring is in a compressed state, the other end abutting against the magnetic column is in surface contact with the cover plate. The coil is fixed on an equipment bottom shell of the electronic equipment, and the coil is electrified to generate a magnetic field to attract the magnetic column, so that the antiskid base and the equipment bottom shell are fixedly connected. Therefore, the coil is electrified to adsorb the magnetic column, the connection firmness between the anti-skid base and the equipment bottom shell is ensured, and the equipment main body of the electronic equipment is prevented from sliding off from the anti-skid base to be damaged.

An optical element driving mechanism includes a fixed part, a movable part, a driving assembly, and a first counterweight element. The movable part and the fixed part are arranged along an optical axis. The movable part is movable relative to the fixed part. The driving assembly is configured to drive the movable part to move relative to the fixed part. The first counterweight element is fixedly connected to the fixed part. The driving assembly is disposed on the first counterweight element.

A data cable, comprising an electromagnetic shielding shell, a cable core assembly and a magnetic adhesive layer, wherein the cable core assembly is located inside the electromagnetic shielding shell; the magnetic adhesive layer is arranged around the outer periphery of the electromagnetic shielding shell and connected to the electromagnetic shielding shell; and the magnetic adhesive layer is magnetic, and the magnetic adhesive layer has magnetic powder and plastic, the ratio of the magnetic powder to the plastic ranging from 5% to 85%.

The utility model discloses a polygon can splice magnet, this polygon can splice magnet is by hexagonal magnet block A, hexagonal magnet block B, hexagonal magnet block C, hexagonal magnet block D, hexagonal magnet block E, hexagonal magnet block F and hexagonal magnet block G splice composition, hexagonal magnet block A, hexagonal magnet block B, hexagonal magnet block C, hexagonal magnet block D, hexagonal magnet block E, hexagonal magnet block F, hexagonal magnet block G all divide trapezoidal N pole piece and trapezoidal S pole piece according to upper and lower diagonal division center line, one side interval of trapezoidal N pole piece is provided with first clamping piece and first clamping groove, one side interval of trapezoidal S pole piece is provided with second clamping piece and second clamping groove. The utility model has the advantages of multidirectional splicing, when one of the parts appears abrasion or is corroded, only need to replace the magnet block of this part, greatly reduces the replacement cost, is favorable to maintenance and overhaul, and the practicality is strong.

A system in a vehicle includes a panel configured cover a portion of the vehicle through which a port extends and one or more electro permanent magnets arranged on the portion of the vehicle. The system also includes a controller to magnetize the one or more electro permanent magnets based on applying a current of a first polarity to the one or more electro permanent magnets such that the one or more electro permanent magnets on the portion of the vehicle couple to the panel, the panel being metal, or to one or more permanent magnets on a surface of the panel to lock the panel when the panel is in the closed position.

The utility model discloses an integrated car machine remote controller, which relates to the technical field of remote control keys and comprises an integrated injection-molded shell, a groove is concavely arranged on one surface of the shell by taking the length direction of the shell as the left-right direction, and a control unit used for interacting with a car machine is arranged in the groove. The control unit is electrically connected with a touch display unit, two containing grooves which are arranged at intervals in the front-back direction are concavely formed in the face, opposite to the groove, of the shell, an antenna electrically connected with the control unit is arranged in each containing groove, at least two oppositely-arranged containing grooves are formed between the two containing grooves, and the control unit is electrically connected with the touch display unit. The two ends of the shell are concavely provided with inserting grooves used for being matched with accessories in a vehicle in an inserting mode. According to the utility model, by integrating the touch display unit of the control unit used for interacting with the vehicle machine, the functionality of the remote controller is enhanced, and the use convenience of the remote controller is improved.

A system for magnetic reorientation is provided to secure and align devices during wireless charging. The system comprises a first device and a second device. The first device includes a power transfer coil configured to transfer power inductively between the first device and the second device; and one or more dock magnets configured to align and secure the second device to the first device during power transfer, wherein the one or more dock magnets are configured to provide reorientation of magnetic polarity based on a magnetic polarity orientation of one or more device magnets located in the second device. The first device is compatible with a plurality of device types including a first device type having a first magnet orientation and a second device type having a second magnet orientation, and the one or more dock magnets are configured to reorient based on the magnet orientation of the first device.

This method for manufacturing a bonded magnet comprises an injecting step for injecting a bonded magnet material containing magnetic powder from injection ports (62) into a molding die (60) provided with a die main body (61) that includes the injection ports (62) and a cylindrical cavity (63). The cavity (63) has first regions (64) and second regions (65) in a cross section orthogonal to a cylinder axis direction (CD) of the cavity (63). The second regions (65) are regions that are different from the first regions (64) in the circumferential direction of the cavity (63). In the radial direction of the cavity (63), the length of each first region (64) is less than the length of each second region (65). The injection ports (62) are provided in the first regions (64).

The utility model relates to the technical field of magnets, and discloses a magnet component convenient to install, which comprises an installing plate, an installing bolt is inserted on the upper surface of the installing plate, and a fixing seat, a magnet assembly, a connecting bolt, a magnet hole and a packaging film penetrate through the surface of the installing bolt in a threaded manner. According to the utility model, the structure is reasonable, the protective shell is opened on the protective bottom plate by rotating the protective shell to take out the magnet assembly, the bolt matched with the fixed threaded hole in the fixed seat is fixed at the mounting position, and the packaging film on the surface of the magnet assembly is taken down to be connected with the bolt to fix the magnet assembly; a tapping machine is used for manufacturing a threaded hole matched with the connecting bolt in the hole groove, the mounting bolt is rotated to fix the mounting plate below the magnet assembly, the connecting bolt is placed in the newly-formed threaded hole to rotate to fix the magnet assembly, and different modes are rapidly selected for fixing according to actual conditions. And workers can conveniently and rapidly install the magnet assembly.

The invention discloses a preparation method of a ferromagnetic annular rubber magnet, which comprises the following steps: providing a sheet material of the rubber magnet, and cutting the sheet material into strips to form a plurality of rubber magnetic strips; performing primary cold pressing treatment on the rubber magnetic strip, so that the two ends of the rubber magnetic strip are jointed to form a conical annular magnet; performing secondary cold pressing treatment on the conical annular magnet to form an annular magnet; and carrying out hot-pressing vulcanization, cooling shaping and magnetizing on the annular magnet in a high-intensity magnetic field to realize special magnetic circuit magnetization so as to obtain the ferromagnetic annular rubber magnet. According to the preparation method, the annular rubber magnet which is high in raw material utilization rate and has strong magnetism can be prepared.

The invention discloses a signal concentrator capable of being used for a long time, and relates to the technical field of concentrators. Comprising a concentrator body, a shell is mounted on the front surface of the concentrator body, a bottom shell is mounted at the bottom ends of the concentrator body and the shell, a mounting groove is formed in the surface of the rear side of the shell, and a first air bag is arranged on the inner wall of the mounting groove. The movable block is matched with the positive magnet, according to the principle that like poles repel and unlike poles attract, the second filter screen is driven to reciprocate back and forth on the inner wall of the bottom shell, then dust on the surface of the second filter screen is shaken off through vibration, the shell does not need to be disassembled and assembled in the cleaning process, the maintenance workload and operation complexity of workers are greatly reduced, and the working efficiency is improved. And meanwhile, through the arrangement of the inflation assembly and the expansion assembly, the first air bag and the second air bag can be expanded, external dust, water vapor and other impurities are effectively prevented from invading the equipment, the connecting position is sealed, and the service life of the concentrator body is prolonged to a certain degree.

The present application relates to the technical field of magnetic particle flaw detection, and particularly relates to a magnetic yoke for fillet weld, a detection device and a detection method. The present application provides a detection device for fillet weld, which comprises a magnetic yoke, the magnetic yoke comprises a first trapezoidal ring and a second trapezoidal ring, the first trapezoidal ring and the second trapezoidal ring are connected through a cross beam; the first trapezoidal ring and the second trapezoidal ring are provided with openings on the same side and the short sides are arranged on the same side, the straight line distance between the long sides of the first trapezoidal ring and the second trapezoidal ring is less than the straight line distance between the short sides; the openings of the short sides and the long sides of the first trapezoidal ring and the second trapezoidal ring are provided with magnetic poles; the current comprises full-wave rectified current and alternating current, the short sides of the first trapezoidal ring and the second trapezoidal ring are connected with different currents, and the long sides are connected with different currents; two sides of the first trapezoidal ring and the second trapezoidal ring are connected with different currents. The present application aims to solve the technical problem that there is no magnetic yoke and detection device for detecting fillet weld defects in the prior art.