3017results about "Permanent magnets" patented technology

The invention discloses a single-coil winding type four-eight-pole composite iron system for beam homogenization. The composite iron system comprises a composite magnet current control device, a composite magnet main power supply and four-pole / eight-pole composite iron, the quadrupole / octupole composite iron has eight pole heads, and only one type of excitation coil is wound on each pole head; the current value of the A-type excitation coil is an absolute value of a quadrupole magnetic field excitation current value plus an octupole magnetic field excitation current value; the current value of the B-type excitation coil is an absolute value obtained by subtracting an octupole magnetic field excitation current value from a quadrupole magnetic field excitation current value; the quadrupole / octupole composite iron is used for simultaneously generating a dominant quadrupole magnetic field and an octupole magnetic field, so that the effects of quadrupole iron and octupole iron can be simultaneously realized by only installing one transmission element; the excitation coil structure of the quadrupole / octupole composite iron composite magnet is improved, and only one excitation coil is wound on each pole head, so that the size of the coil structure can be reduced, and the construction cost is reduced.

Magnetic coupling devices are disclosed having magnetic field sensors. The magnetic coupling device may include degaussing coils wrapped about pole extension shoes of the magnetic coupling device.

An example electronic device may include a first housing including a first surface, a second housing including a second surface, a third housing including a third surface, a first hinge structure rotatably connecting the second housing and the first housing, a second hinge structure rotatably connecting the first housing and the third housing, a flexible display disposed on the first surface, the second surface and the third surface, a first magnet disposed in the second housing, and a hinge locking structure which, in an abnormal state of the electronic device in which a portion of the first surface is adjacent to the second surface, faces the first magnet and which includes a pin insertable into a groove formed in at least one shaft in the second hinge structure.

The present invention provides a magnet mount for securely holding a firearm. The magnet mount includes a side mounting plate, one or more magnets are affixed to the side mounting plate, and a firearm holder. The firearm includes (a) a firearm seat, (b) a connector extending upwardly from the firearm seat and connecting to the side mounting plate, and (c) a trigger shield extending upwardly from the firearm seat. The trigger shield is configured for blocking at least 50% of a trigger accessing area of the firearm to prevent accidental discharge. Also provided is a method of securely holding a firearm using the magnet mount.

A system for chemical processing includes a hollow structure including a side wall having an exterior surface and an interior surface defining an internal volume. The hollow structure has a center axis, a length, and an outer perimeter. The outer perimeter is a shape of the exterior surface of the side wall of the hollow structure in a plane perpendicular to the center axis. The system includes a metallic object positioned within the internal volume of the hollow structure. The system also includes at least two magnets slidably coupled to the exterior surface of the side wall, where the magnets guide movement of the at least one metallic object within the hollow structure. The magnets operate to impact the metallic object against the solid deposits to loosen the solid deposits from the interior surface of the side wall.

The present disclosure discloses a suction cup holder, and relates to the technical field of mobile phone holders. The suction cup holder includes a fixed seat and a magnetic suction seat; several suction cups are fixed on a bottom surface of the fixed seat; the fixed seat is circular; a first circular groove is provided on a top surface of the fixed seat; a mirror is fixed in the first circular groove; the magnetic suction seat is annular; the magnetic suction seat and the fixed seat are rotatably connected; the magnetic suction seat can sleeve the fixed seat; an annular groove is provided on the magnetic suction seat; an opening of the annular groove faces away from the suction cups; and an annular magnet is fixed in the annular groove.

An optical element driving mechanism is provided. The optical element driving mechanism includes a fixed portion, a movable portion, a driving assembly, and a first weighting element. The movable portion is arranged with the fixed portion in a main axis, and the movable portion is movable relative to the fixed portion. The driving assembly is used for driving the movable portion to move relative to the fixed portion. The first weighting element is disposed on the driving assembly for stabilizing the driving assembly.

The invention relates to a transfer method of a Micro LED packaging structure and a Micro LED display device, and relates to the technical field of semiconductor display. According to the transfer method of the Micro LED packaging structure, the ratio of the thickness of a packaging layer subjected to planarization processing to the height of a Micro LED unit is set to be larger than 10, then four symmetrically-distributed concave cavities are formed in the packaging layer of each Micro LED packaging array, the ratio of the depth of the concave cavities to the thickness of the packaging layer is 0.3-0.5, and the ratio of the depth of the concave cavities to the thickness of the packaging layer is 0.3-0.5. The distance between every two adjacent concave cavities is 800-3000 microns, through the process steps, the large-size magnetic component can be formed, the preparation process of the magnetic component is simplified, and the magnetic attraction force of the magnetic component can be improved.

The utility model discloses a radio frequency power amplifier module mounting device based on elastic limit, which comprises a radio frequency module circuit board, the lower end of the radio frequency module circuit board is provided with a supporting bottom plate, the side surface of the supporting bottom plate is provided with a connecting female port, the inner wall of a groove of the connecting female port is provided with a wire harness interface, and the surface of the wire harness interface is provided with a groove. The radio frequency power amplifier module mounting device based on elastic limiting is provided with a positioning clamping block and a supporting air bag, so that when the device works, a wiring harness interface is inserted into a connecting female port, the positioning clamping block is clamped into an opening of the connecting female port for locking, and the stability is improved; during unlocking, a piston column and a limiting sliding block are pushed to conveniently drive a positioning clamping block to loosen the connecting female opening, unlocking convenience is improved, the positioning clamping block pushes the piston column when the connecting female opening and the wire harness connector are installed, air enters a supporting air bag, the supporting air bag can conveniently support and seal the wire harness connector, and therefore sealing performance and stability are improved.

The invention provides a magnet, an electronic device and a charging device, the magnet comprises a first sub-magnet and a second sub-magnet, the direction of magnetic lines in the first sub-magnet and the direction of magnetic lines in the second sub-magnet are inclined to the plane where the magnet is located, and more magnetic lines can be gathered in the space on one side of the magnet and are sparse around the magnet. According to the invention, by changing the distribution of the magnetic lines of force of the magnet, the magnet with a small size can generate a strong suction force or a repulsive force, the use amount of materials for manufacturing the magnet is small, and the adverse effect of the magnet on surrounding electronic components is small. The magnet can be assembled in electronic equipment with a limited accommodating space, and the magnet is wide in application scene and beneficial to saving rare earth elements and other resources for manufacturing the magnet.

A system for inductive charging is provided. The system comprises a magnetic structure having one or more pieces that include substantially flat first and second surfaces. Each piece includes at least two magnetic poles of opposite polarity located at each of the first and second surfaces such that each piece includes at least two pairs of opposing magnetic poles oriented to cause magnetization in two opposing directions. The magnetic structure creates a magnetic field with flux densities having substantially similar magnitudes relative to the first and second surfaces as a function of distance from the first and second surfaces, respectively, along an axis that runs perpendicular to the first and second surfaces. The magnetic field does not impair normal operation of a magnetically sensitive component. The magnetic structure is configured to create a magnetic attachment between devices and to align the charging and receiving coils in the devices.

A cigar holder can include an annular body defining an inner surface and an outer surface; the annular body comprising: a protrusion extending outward in a radial direction from a surrounding portion of the outer surface with respect to an axis of the annular body; and a plurality of protuberances, each of the plurality of protuberances extending in a radial direction from a surrounding portion of the inner surface with respect to the axis of the annular body; and a magnet coupled to the annular body. A cigar holder can alternatively include an annular body defining an inner surface and outer surface and formed from an elastomeric material, the annular body comprising a protrusion extending from the outer surface of the annular body; and a magnet coupled to the annular body.

A holder is configured to be detachably secured to an electronic device which includes a first magnetic attraction member. The holder includes a case and a second magnetic attraction member mounted to the case. The second magnetic attraction member is configured to be attracted to the first magnetic attraction member in a first direction. The second magnetic attraction member includes a first magnet layer extending along a circumferential direction; and a second magnet layer disposed around the first magnet layer in the circumferential direction, the first magnet layer and the second magnet layer being separately formed. The first magnet layer and the second magnet layer are polarized in an axial direction which is parallel to the first direction and perpendicular to the circumferential direction, and polarization directions of the first magnet layer and the second magnet layer are opposite to each other.

A magnetic data cable is disclosed, including cable body and a data interface connected to both ends of the cable body. The cable body includes a cored wire group and an external protective layer wrapped outside of the cored wire group, a flexible magnetic strip is provided in the outer protective layer, and the flexible magnetic strip is located alongside of the cored wire group and extends parallel to the cored wire group. It is convenient to adjust diameter of the coil after the data cable has been coiled so as to facilitate storing of the data cable, and it is easy to operate.

Magnetic coupling devices are disclosed having magnetic field sensors. The magnetic coupling device may include degaussing coils wrapped about pole extension shoes of the magnetic coupling device.

An input device comprising a processor(s), an input element, an electropermanent magnet (EPM) assembly including: a permanent magnet operable to generate a magnetic field; and a magnetizing assembly configured to set a magnetic field generated by the permanent magnet, a first ferromagnetic element, and a second ferromagnetic element. The first ferromagnetic element is configured to part and move away from the second ferromagnetic element as the input element is depressed. When the EPM assembly magnetizes the permanent magnet to a first polarity, the first and second ferromagnetic elements are magnetically attracted to each other and provide an attracting that magnetically opposes the first and second ferromagnetic elements from parting, and when the EPM assembly magnetizes the permanent magnet to a second polarity, the first and second ferromagnetic elements are not magnetically attracted to each other and do not magnetically oppose the first and second ferromagnetic elements from parting.

The present application relates to the technical field of bendable circuit boards and provides a magnetic assembly and assembly method thereof, a linear motor, a camera, and an electronic device, capable of resolving the problems of low connection reliability between two repelling magnets in magnetic assemblies and low assembly efficiency of magnetic assemblies in related technologies. The magnetic assembly includes a magnet unit, which includes multiple magnets, wherein two adjacent and repelling magnets are welded together. The present application can be used in electronic devices such as mobile phones.

A locking assembly for a propeller rotor includes an electric machine having a first mode to energize the electric machine to produce torque and a second mode to deenergize the electric machine to stop production of the torque. A magnetic assembly includes a first component coupled to a first wall via a pivot point, and a second component attached to a second wall. The first component and the second component align proximal to each other when the first component is in a locked position such that the first and second components create a magnetic attraction therebetween to lock the first wall in a stationary position when the electric machine is in the second mode. The first component moves away from the second component to an unlocked position due to rotation of the first wall when the electric machine is in the first mode.

The invention provides an electro-permanent magnet uncoiling composite magnetic field multi-mode adjustment system which comprises a data acquisition and preprocessing module, a graph structure construction module, a dynamic prediction module, a historical matching prediction module, a magnetic force adjustment strategy module and an electro-permanent magnet execution mechanism. The data acquisition module constructs a multi-modal data cube through a temperature field, deformation, stress and magnesium powder concentration sensing network; the graph structure module discretizes the steel strip coil into a node network and calculates a mechanical association edge weight; the dynamic prediction module updates node features through the graph neural network and then outputs a sliding probability vector through the LSTM network; the historical matching module screens similar working conditions based on a dynamic time warping algorithm and generates magnetic force preset parameters; the strategy model fuses the probability vector and a preset parameter to generate a partition magnetic matrix; and the execution mechanism realizes millisecond-level magnetic field regulation and control through the reconfigurable magnetic pole array. According to the system, the magnetic field control precision can be improved, the interlayer sliding risk is reduced, and the self-adaptive adjustment effect is achieved.

A connector structure in which a male connector and a female connector are easily coupled to each other. The connector structure includes a coupling part, a housing, and a first removing tool. The coupling part is coupled to the female connector in a coupling mode and separated from the female connector in a separating mode. The housing includes a first magnet on a first surface among surfaces surrounding the coupling part and is configured to attract the female connector by using magnetic force of the first magnet. The first removing tool is configured to rotate a second magnet in the separating mode so as to weaken the magnetic force.

A system that incorporates the subject disclosure may include, for example, a processor that performs operations including receiving an actuation profile comprising one or more actuation thresholds responsive to a detection of a triggering event during a gaming session of a video game, configuring the sensor according to the one or more actuation thresholds, receiving, from the sensor, a signal indicating a depression range of the button, comparing the depression range to the one or more actuation thresholds of the actuation profile, and generating an actuation state when the depression range exceeds an actuation threshold of the one or more actuation thresholds. Additional embodiments are disclosed.

The invention discloses a corrosion-resistant neodymium-iron-boron magnet and a preparation method, and belongs to the technical field of neodymium-iron-boron magnets, and the preparation method of the corrosion-resistant neodymium-iron-boron magnet is characterized by comprising the following steps: S1, uniformly mixing neodymium-iron-boron powder obtained by jet milling with alloy nano-powder, and sieving to obtain a mixed material, wherein the adding amount of the alloy nanometer powder is 0.2-0.8% of the weight of the neodymium iron boron powder; s2, compression molding: carrying out compression molding and oil isostatic pressing on the mixed material to obtain a pressed blank; s3, sintering molding: sintering the pressed blank to obtain a neodymium-iron-boron magnet; s4, carrying out pretreatment on the neodymium-iron-boron magnet; and S5, preparing a coating solution, stirring and mixing silane, a solvent and water according to the weight ratio of 1: (0.8-1.2): (2.2-2.8) to prepare a silane hydrolysate, then adding zinc and aluminum sheet-shaped powder, uniformly stirring and mixing, spraying, and drying to obtain the corrosion-resistant neodymium-iron-boron magnet, thereby achieving the effect of improving the corrosion resistance of the neodymium-iron-boron magnet.

The invention discloses a special-shaped magnetic tile which comprises a magnetic tile body, the magnetic tile body is provided with five magnets and is composed of three groups of different magnetic tiles, the back of the magnetic tile body is of an arc structure, and the bottom of the magnetic tile body is of a horizontal structure. The outer sides of a group of same magnetic blocks on the left side and the right side of the magnetic tile body structure are ground into fillets with the same radius. The special-shaped magnetic shoe has the advantages of being large in magnetic force, small in weight and small in size, compared with an existing magnetic shoe combination, the special-shaped magnetic shoe has the higher magnetic mass ratio, the heavy-load operation capacity of a vertical face walking robot is greatly improved, and high economic benefits and safety are achieved.

The utility model discloses an arrangement structure of magnets, and relates to the technical field of Halbach array magnet assembly, a plurality of first single magnets are arranged at intervals along the left-right direction, two second single magnets are embedded between adjacent first single magnets, the length and the width of each second single magnet are half of those of each first single magnet, the magnetic pole direction of each first single magnet is upward, and the magnetic pole direction of each second single magnet is upward. The magnetic pole of the second single magnet located on the left side deflects by 45 degrees towards the upper left, and the magnetic pole of the second single magnet located on the right side deflects by 45 degrees towards the upper right; the length and the width of the third single magnets are the same as those of the first single magnets, the arrangement mode of the third single magnets is the same as that of the first single magnets, the two fourth single magnets are embedded between the adjacent third single magnets, the length and the width of each fourth single magnet are half of those of each third single magnet, and the magnetic pole direction of each third single magnet faces upwards; the magnetic pole of the fourth single magnet located on the left side deflects by 45 degrees towards the upper left, and the magnetic pole of the second single magnet located on the right side deflects by 45 degrees towards the upper right. The magnetic field generated by the utility model is more uniform.

To provide a magnet holder and a magnet attraction mechanism which can facilitate detachment of an attraction target object from an attracting body while obtaining a high attraction force when the attracting body and the attraction target object are attracted to each other.SOLUTION: A magnet holder is configured as a magnet holder 110 that attaches an attraction target object (panel 104) to an attraction base 102 made of a magnetic material. When the attraction base 102 side of the magnet holder 110 is defined as a back surface side and the opposite side of the magnet holder 110 to the attraction base 102 is defined as a front surface side, a plurality of thin plate-shaped magnets 120 and a plurality of thin plate-shaped yokes 130 are alternately arranged, gaps G1 and G2 are formed between some of the plurality of yokes 130 and the attraction base 102 on the back surface side, and the end faces of all the yokes 130 and all the magnets 120 are flush with each other on the front surface side.SELECTED DRAWING: Figure 1

The invention discloses a positioning electromagnetic magnetic needle device based on permanent magnet bias and application thereof, and relates to the technical field of chip mass transfer, the positioning electromagnetic magnetic needle device comprises a magnetic field generation system and a chip transfer system, the magnetic field generation system comprises permanent magnet steel, an electrified solenoid coil, a magnetic conductive layer and a magnetic conductive magnetic needle, the electrified solenoid coil surrounds the periphery of the permanent magnet steel, and the magnetic conductive layer is arranged on the periphery of the chip transfer system; the magnetic conductive layer is arranged on the upper surface of the permanent magnet steel, the magnetic conductive magnetic needles are uniformly distributed on the upper surface of the magnetic conductive layer in an array manner, the chip transfer system comprises a chip transfer substrate and a plurality of LED light-emitting chips, a plurality of welding spots are arranged on the transfer substrate and correspond to the magnetic conductive magnetic needles, and the LED light-emitting chips are provided with N-type nickel-plated electrode pins and P-type electrode pins. According to the positioning electromagnetic magnetic needle device based on permanent magnet bias and the application of the positioning electromagnetic magnetic needle device, the magnetic induction density of the magnetic conductive magnetic needle is accurately regulated and controlled by means of the magnetic field which is generated by the electrified solenoid coil and is opposite to the permanent magnetic field, and accurate fixing of a chip at a welding spot position of a transfer substrate is achieved.