169results about "Permanent magnets" patented technology

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 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.

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.

The application discloses a mechanical switching type bidirectional heat management device and a control method, relates to the technical field of electronic components and heat management, and comprises an electromagnetic module, a component heat dissipation module, a component heating module and the like.

Methods described herein can include drawing materials to form a drawn filled tubing (DFT) wire. The materials can include a core material, a first layer of a biocompatible material disposed exterior to the filler material, a magnetic material disposed external to the first layer of biocompatible material, and a second layer of biocompatible material disposed exterior to the magnetic material. In some embodiments, the method further comprises melting the core material to form a magnet with a through hole lumen. In some embodiments, the method can further include applying an external magnetic field to the materials during the drawing to align grains of the magnetic material. In some embodiments, the core material can have a melting point lower than a melting point of the magnetic material and the biocompatible material.

The present invention relates to an operating element comprising: a mounting portion; an actuating member supported at the mounting portion in such a way that it is rotatable about a rotation axis by means of a support member, for rotational adjustment by an operator; wherein the support member is further configured to support the actuating member in a restricted axial direction, preferably with a reset mechanism; a detection device for detecting at least the rotational adjustment of the actuating member; an electromagnetic actuator acting between the mounting portion and the actuating member and generating tactile feedback; a control unit electrically connected to the electromagnetic actuator, configured to apply an electrical control signal to the electromagnetic actuator to cause deflection of the actuating member in the axial direction as tactile feedback; wherein the electromagnetic actuator has at least one permanent magnet fixed at the actuating member and an annular coil fixed at the mounting portion; and wherein the annular coil is arranged concentrically with an air gap and engages with the air gap via an opening.

This utility model belongs to the field of battery formation equipment, and particularly relates to a battery formation fixture, comprising: a base; a magnetic ring, which is magnetic and disposed within the base, with a guide hole in the center of the magnetic ring along a first direction; a contact plate for holding the battery tabs, the contact plate being provided with a guide rod, the guide rod slidingly passing through the guide hole along the first direction, the contact plate being able to reciprocate between an extended position away from the base and an initial position close to the base along the first direction, the guide rod being configured to be made of a material that can be magnetically attracted by the magnetic ring, and the magnetic ring being configured to give the guide rod a tendency to move towards the initial position. This utility model, by setting a magnetically slidingly engaging structure between the magnetic ring and the guide rod, makes the resetting action of the contact plate smoother and more reliable, and allows the contact plate to stably remain in the initial position when no formation operation is required.

An electronic device according to an embodiment of the disclosure includes a housing including a lateral member and a support member extended from the lateral member, and a display disposed in the housing. The display includes a display panel including a first area and a second area extended from the first area, disposed on a rear surface of the first area, and having an end overlapping with a flexible printed circuit board (FPCB), a control circuit disposed in the second area, a reinforcing member disposed along the end of the second area and arranged to surround at least a portion of the control circuit, and a waterproof member disposed in the second area. At least a portion of the waterproof member may be spaced apart from the end of the second area by a distance smaller than a combination of a width of the control circuit and a width of the reinforcing member. Other various embodiments are possible.

This invention provides a device for preparing anisotropic annular sintered ferrite magnets, belonging to the field of sintered ferrite magnet preparation technology. It includes a frame, a forming mold assembly mounted on the frame and equipped with an anisotropic orientation magnetic field generating mechanism, a sintering mechanism, and a conveying assembly connecting the forming mold assembly and the sintering mechanism. By integrating the frame, forming mold assembly, sintering mechanism, and conveying assembly, the device constructs a complete integrated preparation system. The annular female mold, central mandrel, and upper and lower pressure heads of the forming mold assembly form a forming cavity adapted to the anisotropic annular magnet, providing a stable structural foundation for magnetic powder filling, orientation, and forming. This achieves a smooth connection between magnetic powder forming and subsequent sintering, effectively solving the problems of low preparation efficiency and poor product quality caused by the disconnection of various stages in traditional devices, and laying a structural foundation for improving the magnetic properties of the magnets and the yield rate of the finished product.

The present disclosure provides an expanded coating, a preparation method and use thereof, and a permanent magnet comprising same. The expanded coating described herein comprises pores and a filler resin arranged among the pores; the pores comprise at least a spheroid pore having a cross section with a long diameter and a short diameter; in the cross section of the expanded coating, the area of the spheroid pores accounts for 50%-60% of the cross-sectional area of the expanded coating. The permanent magnet of the present disclosure comprises the expanded coating. The expanded coating has high strength and can exhibit excellent mechanical properties and corrosion resistance at high temperatures (such as 170° C.), with a shear strength greater than 2 MPa, a tensile strength greater than 2 MPa, an oil resistance greater than 1800 h and a neutral salt spray performance greater than 288 h at 170° C.

This invention relates to the field of ventilation system technology, specifically to an energy-saving ventilation system for prefabricated buildings. The system includes a wind duct and a fan fixed at the duct's port. Air guide plates are rotatably mounted on both sides of the wind duct. An air-guiding component is located near the outer side of each air guide plate to generate thrust when wind conditions are suitable. The air-guiding component includes a connecting frame fixedly mounted on the outer side of the air guide plate, and a rotating frame is fixedly connected to the connecting frame. By using the air-guiding component, when natural wind conditions are sufficient, natural wind can be guided into the wind duct to ventilate the building. Natural wind is used to replace or partially replace the wind generated by the fan, allowing for proactive fan shutdown and achieving energy savings. Simultaneously, the magnetic damping generated between the metal slider and the strong magnet helps stabilize the movement of the rotating plate, assisting in the stable entry of wind into the wind duct.

This invention discloses a neodymium iron boron (NdFeB) magnet, its preparation method, and its applications. The NdFeB magnet of this invention includes a first easily demagnetized region, a first transition region, a non-easily demagnetized region, a second transition region, and a second easily demagnetized region, sequentially distributed along a direction perpendicular to the orientation. All three regions—the first easily demagnetized region, the second easily demagnetized region, the non-easily demagnetized region, the first transition region, and the second transition region—are rectangular. By controlling the Tb content introduced by diffusion in the transition region, the easily demagnetized region, and the non-easily demagnetized region, as well as the Dy content in all regions, this invention can reduce inter-regional Tb diffusion caused by the Tb concentration gradient difference in the transition region. This reduces the attenuation of the surface magnetism and magnetic flux of the NdFeB magnet while maintaining its remanence, thereby improving the demagnetization resistance of the NdFeB magnet. Furthermore, by setting the easily demagnetized region, the non-easily demagnetized region, and the transition region to be rectangular, this invention can improve the demagnetization resistance of the four corners and the long side of the NdFeB magnet.

The utility model discloses a kind of electromagnetic shielding shell for mobile communication equipment, it is related to shielding shell technical field, comprising: first shell, one side detachably connected with second shell;A plurality of bearing blocks, symmetrically fixed to the inner wall of the first shell and the second shell, recessed area is equipped in the bearing surface middle part of the bearing block;A plurality of splicing rings, inside the first shell and the second shell are equipped, the inner wall of the splicing ring and the second shell is fixedly connected;When the first shell is spliced with the second shell, the splicing ring of protruding splicing surface is contacted first and moves downward, lever is swung in the recessed area of bearing block, the distal end of lever is upturned and is supported on the lower surface of half magnetic ring, dynamic support to half magnetic ring middle part is realized, ensure that two half magnetic rings are closely adhered, avoid the gap due to far from fixed point, to significantly improve the reliability of electromagnetic shielding.

The application relates to the technical field of nanometer magnetic bead preparation, and discloses a magnetic tile mounting structure with a magnet surrounding a pipe wall. The magnetic tile mounting structure comprises an embedded magnetic plate and a plurality of magnetic tiles. The embedded magnetic plate comprises a plurality of continuously spliced annular or arc-shaped supporting blocks. A plurality of first grooves are formed in the top surface of the supporting blocks, and a plurality of second grooves are formed in the bottom surface of the supporting blocks. The first grooves and the second grooves of adjacent supporting blocks are oppositely arranged and spliced into cavities for accommodating the magnetic tiles. The shapes of the cavities are matched with the shapes of the magnetic tiles. The application can realize stable installation of the magnetic tiles and facilitates replacement and rearrangement of the magnetic tiles.

This invention provides a technology to improve the residual magnetic flux density in stacked magnets. [Solution] The stacked magnet comprises a plurality of stacked magnets, an intermediate layer having an insulating portion formed of an insulating material and a magnetic portion formed of a magnetic material, and the intermediate layer being disposed between adjacent magnets among the plurality of magnets.

This invention provides a high-performance R-Fe-B magnetic material that does not use heavy rare earth elements, and a method for producing the same. [Solution] An R-Fe-B rare earth magnetic material comprising a main phase, a two-particle grain boundary phase, and a triangular region grain boundary phase, wherein the main phase is R2T 14 The B phase is such that R is at least one of Nd and Pr, T is Fe, or Fe and Co, and the two-particle grain boundary phase includes a grain boundary Cu-rich phase and / or an acicular ZrBx phase and / or an acicular TiBx phase, and the atomic percentage ratio of the grain boundary Cu-rich phase with R within 20 nm near the interface with the main phase is 1.5

The present disclosure can provide a wireless power transmitter comprising: a plurality of primary coils for transmitting wireless power through magnetic coupling to a secondary coil of a wireless power receiver; and a plurality of permanent magnets arranged so as not to overlap with the plurality primary coils, wherein: the plurality of primary coils include a first bottom coil and a second bottom coil that are arranged side by side in the width direction so as not to overlap with each other on a first plane, and a top coil arranged on a second plane positioned above the first plane; one side of the top coil is positioned above the first bottom coil, and the other side of the top coil is positioned above the second bottom coil; the plurality of permanent magnets are arranged on a third plane positioned above the second plane; and the plurality of permanent magnets are arranged to be spaced by predetermined intervals along concentric circles around an axis that is perpendicular to the first plane between the first bottom coil and the second bottom coil.

An aerosol generating system (10) includes a housing (12) and an inhalation device (14) housed within the housing (12). The housing (12) has a body (16) and a flap (18) movable relative to the body (16). The inhalation device (14) and the flap (18) have a combination of at least one magnet and at least one ferrite element (22, 28). When the flap (18) moves relative to the body (16), the at least one magnet and the at least one ferrite element cooperate to move the inhalation device (14) relative to the body (16). The flap (18) has at least one sliding pin (26) slidable relative to the body (16), and at least one magnet or ferrite element (28) is disposed on the body. A method for removing at least one suction device (14) from a housing (12) having a body (16) and a flip cover (18) movable relative to the body (16), the method comprising the steps of: partially removing the suction device (14) from the housing (12) by means of cooperation between at least one magnet disposed on the suction device (14) and at least one ferrite element (22, 28) disposed on the flip cover (18) and the housing (16) thereby moving the suction device (14) relative to the housing (16), wherein the flip cover (18) has at least one sliding pin (26) slidable relative to the housing (16), and at least one magnet or ferrite element (28) is disposed on the housing (16).

The utility model provides a kind of corrosion-resistant neodymium iron boron magnet, including neodymium iron boron magnet, the countersunk hole is arranged on neodymium iron boron magnet, the countersunk hole is through the upper and lower two sides of neodymium iron boron magnet, and the lower hole diameter inner wall of all countersunk hole is provided with internal thread;Support bolt is installed in the countersunk hole, and the top of support bolt is provided with internal hexagonal slot hole.When using, countersunk hole is set in the four corners of neodymium iron boron magnet, and internal thread is set in the lower hole diameter of countersunk hole, while support bolt is set in countersunk hole and is threadedly connected with internal thread, when normally using, the upper and lower two ends of support bolt are flush with the upper and lower two sides of neodymium iron boron magnet, when neodymium iron boron magnet needs to be disassembled, support bolt is screwed down, so that the lower end of support bolt protrudes from the bottom of neodymium iron boron magnet and lifts neodymium iron boron magnet, thereby reducing the adsorption force between neodymium iron boron magnet and adsorption surface, and the effect of conveniently disassembling neodymium iron boron magnet is achieved.

Provided are a nonmetallic sample induced magnetic field generating device and application thereof. The nonmetallic sample induced magnetic field generating device includes a sample tube, an induced magnetic field carrier, and an induced magnetic field carrier cooling system. At least part of the sample placement tube is wound around the exterior of the induced magnetic field carrier, the sample tube is configured to accommodate a nonmetallic sample and allow the nonmetallic sample in a static or continuous-flow state, the induced magnetic field carrier is configured to generate a magnetic flux, and the appropriate magnetic flux density can induce the nonmetallic sample in the sample tube to generate an induced magnetic field and an induced electric field. The measured induced magnetic field and induced electric field represent the change of physicochemical characteristics of the nonmetallic sample, and the induced magnetic field carrier cooling system is in heat-conducting fit with the induced magnetic field carrier and is at least configured to keep a temperature of the induced magnetic field carrier at an appropriate range.

An electropermanent magnet array is provided. The electropermanent magnet array includes one or more of a plurality of electropermanent magnets of common length, arranged in a parallel fashion, and a planar pole piece, coupled to the first ends of the plurality of electropermanent magnets. Each electropermanent magnet includes a first and a second end opposite the first end.

Shuttle barrier (1) for a shuttle system (3) comprising: - an electromagnetic excitation system (10) comprising a magnetic yoke (12) with an air gap (18) and an energizable excitation coil (15), - a housing (20), - a shaft (25) with at least one diametrically magnetized permanent magnet (28) and a drive lever (30) arranged non-rotatably on the shaft (25) with a first end stop (38) and a second end stop (39), - wherein the shaft (25) is rotatably mounted on the housing (20) and holds the at least one permanent magnet (28) arranged in the air gap (18), - wherein a stop (40) is arranged on the housing (20) by which a rotation of the drive lever (30) from a first position (A) to a second position (B) is limited,- wherein the drive lever (30) is held by permanent magnets in the first position (A) and in the second position (B) and wherein in the first position (A) the first end stop (38) rests against the stop (40) and in the second position (B) the second end stop (39) rests against the stop (21),

The application provides a magnetic isolation assembly, a magnetic attraction assembly, a wireless charging device and an electronic device. The magnetic isolation assembly comprises a first magnetic isolation member, a second magnetic isolation member arranged on one side of the first magnetic isolation member, the first magnetic isolation member and the second magnetic isolation member having a first gap, and a third magnetic isolation member arranged on the side of the first magnetic isolation member away from the second magnetic isolation member, the first magnetic isolation member and the third magnetic isolation member having a second gap, the first magnetic isolation member, the second magnetic isolation member and the third magnetic isolation member enclosing a receiving groove. When the magnetic isolation assembly is applied to the wireless charging device or the electronic device, the wireless charging efficiency can be improved.

In this rotor core, a permanent magnet includes a compression bonded magnet containing a magnetic material and a compression-molding resin material and provided in a magnet hole portion, and an injection bonded magnet containing the magnetic material and an injection-molding resin material and provided so as to adjoin the compression bonded magnet in the magnet hole portion.

[Problem] To provide a hot-worked magnet with less chipping. [Solution] Provided is a hot-worked magnet that contains an aggregate of a plurality of magnetic powders, wherein: the magnet comprises a first surface that extends in the radial direction, a second surface that extends in the axial direction, and a ridge line that is formed by the intersection of the first surface and the second surface; and the surface roughness of the ridge line is within the range of 32–150 um. The hot-worked magnet exhibits little chipping.