18 results about "Magnetic structure" patented technology

The present disclosure relates to, in part, an inductor structure that includes an etch stop layer arranged over an interconnect structure overlying a substrate. A magnetic structure including a plurality of stacked layers is arranged over the etch stop layer. The magnetic structure includes a bottommost layer that is wider than a topmost layer. A first conductive wire and a second conductive wire extend in parallel over the magnetic structure. The magnetic structure is configured to modify magnetic fields generated by the first and second conductive wires. A pattern enhancement layer is arranged between the bottommost layer of the magnetic structure and the etch stop layer. The pattern enhancement layer has a first thickness, and the bottommost layer of the magnetic structure has a second thickness that is less than the first thickness.

The utility model discloses a carbon nanotube powder is with magnetic device, include: concave type suit case, processing support and replacement formula magnetic structure, concave type suit case install on processing support, replacement formula magnetic structure install in the inside of concave type suit case, the utility model relates to carbon nanotube production technical field adopts double spin magnetic system, and through the disc structure of reverse differential rotation, makes powder complete magnetic adsorption under dynamic dispersion state, and realizes the intelligent regulation and control of magnetic circuit with the cooperation of elastic magnetic transmission mechanism, guarantees adsorption precision and avoids mechanical wear and tear, the original modularization magnetic circuit design is through the magnetic transmission path of optimal arc shunt plate - metal plug - convex axle rod, realizes magnetic field intensity gradient distribution, and can accurate control magnetic attraction area and desorption timing with the cooperation of electromagnetic on - off control.

The utility model provides a kind of anti-magnetic structure of water meter belongs to water meter technical field.It solves how to avoid the problem of water stealing phenomenon occurs.In the anti-magnetic structure of this water meter, water meter includes base and the magnetic steel in the base, anti-magnetic structure includes meter cover, anti-magnetic structure further includes annular anti-magnetic sleeve, the anti-magnetic sleeve is set to base outside and around the magnetic steel setting, the anti-magnetic sleeve is positioned in the base outside along circumference direction, the meter cover is connected and fixed in the top of the base and located in the anti-magnetic sleeve above, and the meter cover is pressed on the base with the anti-magnetic sleeve.The anti-magnetic structure of this water meter can avoid the occurrence of water stealing phenomenon.

This utility model discloses an electronic working switch, a magnetic particle flaw detector starting circuit, and a magnetic particle flaw detector. The electronic working switch includes: a switch housing, a magnetic field sensor, a magnetic structure, and a magnetic shielding structure. The switch housing has an accommodating space for accommodating the magnetic shielding structure. The magnetic field sensor is disposed on the side wall of the switch housing, and the magnetic structure is disposed on the side wall and opposite to the magnetic field sensor. The magnetic shielding structure is slidably disposed in the accommodating space inside the switch housing to isolate the magnetic field between the magnetic structure and the magnetic field sensor. The electronic working switch in this application converts the positional change of the magnetic shielding structure relative to the magnetic field sensor into a change in the working signal output of the working switch, reducing wear and failure problems caused by mechanical contact and improving measurement accuracy and stability.

The application relates to the technical field of kitchen utensils, in particular to a gas stove. The gas stove comprises a stove table, a knob, a magnetic structure, an induction coil, a detection piece and a control assembly; the stove table is provided with a table top, and an assembly space is arranged below the table top; the knob comprises a rotating rod and a rotating shell sleeved on the rotating rod, the rotating rod is rotationally connected to the stove table, and the rotating shell is arranged above the table top and is provided with a first accommodating cavity; the magnetic structure comprises at least two magnetic parts which are arranged in a circumferential direction of the knob and are spaced apart, and the magnetic force of each magnetic part is different; in the height direction of the stove table, the projection of the induction coil and the projection of one of the magnetic parts are arranged in an overlapping mode, the induction coil is configured to generate an induced current in response to the rotation of the knob, one of the induction coil and the magnetic structure is mounted in the first accommodating cavity, and the other is mounted in the assembly space. The knob is rotated to make the induction coil cut the magnetic field, generate currents of different sizes, and according to the current detection signal of the detection piece, the control assembly can accurately control the size of the fire.

A device includes: a case configured to be detachably coupled to an electronic device including a camera and a planar induction coil, the case including a camera opening exposing a portion of the camera to an outside in a state in which the case is coupled to the electronic device; a magnetic structure disposed in or on the case and having a loop shape surrounding the planar induction coil; and a magnetic shielding member having a shape corresponding to the loop shape the magnetic structure, wherein the magnetic shielding member includes: a first portion interposed between the electronic device and the magnetic structure in the state in which the case is coupled to the electronic device and configured to cover a lower surface of the magnetic structure; and a second portion facing the camera opening and configured to cover an outer side surface of the magnetic structure.

This utility model discloses a magnetic device, relating to the field of magnetic structure technology. The magnetic device includes a first circuit board, a second circuit board, conductive elements, and a magnetic core. Both the first and second circuit boards have multiple corresponding first and second connection pads. The conductive elements include first and second conductive elements. The two ends of the first conductive element are respectively soldered to the first connection pads on the first and second circuit boards, and the two ends of the second conductive element are respectively soldered to the second connection pads on the first and second circuit boards. The magnetic core is disposed between the first and second circuit boards and between the first and second conductive elements. The first and second connection pads on the first and second circuit boards are connected one-to-one by traces to form a winding. The technical solution provided by this utility model enables fully automated production of magnetic devices, improving production efficiency.

This invention relates to the field of household appliance technology, and discloses a magnetic knob, a household appliance, and a control method. The magnetic knob includes: a knob body comprising a base, a top cover rotatably connected to the base, and a rotating cavity; a damping structure comprising a magnetic fluid and a coil, the magnetic fluid being disposed within the rotating cavity, and the coil surrounding the magnetic fluid; when the top cover rotates, a controller is configured to be electrically connected to the coil and to control the direction of the current in the coil according to the rotation direction of the top cover, so that at least a portion of the coil generates an effective magnetic field opposite to the rotation direction, and the magnetic fluid is configured to generate a damping force that resists the rotation of the top cover under the magnetic force of the effective magnetic field. By controlling the direction of the current in the coil, the magnetic fluid generates a damping force that resists the rotation of the top cover, transforming the non-contact magnetic structure into a tactile feel with resistance, resulting in better force feedback, avoiding over-adjustment caused by misoperation, improving adjustment accuracy, and optimizing the user experience.

A sensing system and a method for sensing position include a first magnetic track comprising a first number of multipoles for generating a magnetic field solidarily fixed to a second magnetic track for generating a magnetic field and a second sensor for sensing magnetic field, forming a magnetic structure. At least two sensors are included. The first sensor is positioned proximal to the first magnetic track, closer to the first magnetic track than to the second magnetic track. The second sensor is positioned between the first sensor and the second magnetic track. The distance between the first sensor and the second magnetic track is larger than the distance between the second sensor and the second magnetic track. The magnetic flux density generated by the first and second magnetic tracks follow a ratio of two or more.

This invention provides a wearable occupational health data monitoring device for power grid workers. It includes an adaptive constant-pressure fitting mechanism for driving the strap to expand in low-temperature environments, ensuring constant pressure contact between the sensor module on the back of the watch and the wearer's wrist; and an inertial-triggered joint locking mechanism for converting the flexible joint between the flexible watch head and the strap into a rigid connection upon detecting an impact. This invention provides an adaptive intelligent monitoring device for high-altitude, low-temperature, strong magnetic field, and high-impact working environments. Utilizing a bidirectional shape memory actuator and a temperature control valve, the strap automatically expands at low temperatures, eliminating wearing gaps and ensuring accurate and continuous monitoring of physiological signals; rapid locking via a MEMS accelerometer and magnetorheological fluid joint suppresses vibration and improves monitoring stability; and a permalloy alloy and coating are used to construct an anti-magnetic structure to resist interference from strong power frequency magnetic fields. The device significantly improves adaptability, reliability, and wearing comfort under extreme working conditions.

This invention belongs to the field of oscillating energy harvesting technology and equipment, and particularly relates to a double-pawl electromagnetic energy harvester and electronic device. The double-pawl electromagnetic energy harvester includes a magnetic structure comprising a central rotating shaft, a central disk connected to the central rotating shaft, a magnet for generating a magnetic field, and a coil located within the magnetic field. The magnet and the coil are optionally connected to the central disk. A transmission structure includes a first gear set located on one side of the central disk and a second gear set located on the other side of the central disk. Both the first and second gear sets drive the central rotating shaft to rotate in a first direction. The first gear set includes a first planetary carrier. The invention also includes an oscillating structure comprising an oscillating shaft that reciprocates around the central rotating shaft and a pawl rotatably connected to the oscillating shaft. Pawls are provided at opposite ends of the oscillating shaft, with the two pawls corresponding to the first and second gear sets, respectively. This invention can improve energy utilization, thereby improving energy harvesting efficiency.

The application belongs to the technical field of solid-state magnetic refrigeration materials, and particularly relates to a Fe-doped MnCoGe-based bulk magnetic refrigeration alloy and a preparation method thereof. The application solves the problems of poor room-temperature mechanical performance, easy cracking and powdering, low magnetocaloric effect, difficult phase transition temperature regulation and insufficient magnetic structure coupling of the existing MnCoGe-based magnetic refrigeration material, and cannot prepare bulk samples. The chemical general formula is (Mn 0.91 Co 1.09 Ge) 1‑x Fe x , 0<=x<=0.03. The MnCoGe-based bulk alloy is prepared by arc melting and hot-press sintering, and has excellent mechanical performance and magnetocaloric effect. After multiple cold and hot cycles, the alloy maintains good mechanical integrity, the maximum breaking strength reaches 341 MPa, the maximum magnetic entropy change reaches 36.2 J / kg K, and the alloy has a potential application prospect in the field of magnetic refrigeration.

This invention relates to the field of magnetic material formulation optimization technology, specifically a method for optimizing the formulation of high-energy-product, high-temperature-resistant NdFeB-based composite plastic magnetic materials. The method includes: collecting historical raw material ratio data and corresponding high-temperature magnetic performance test results for NdFeB magnetic powder, various heat-resistant modifiers, different molding aids, and binders; forming an original formulation-performance dataset; and generating formulation feature-performance vector pairs through normalization and structured coding. By processing the vectors through multi-dimensional spatial projection and principal component decomposition, a quantitative mapping model from formulation features to comprehensive performance is constructed based on a relational mapping network. Candidate formulations are obtained through global optimization in the formulation space, and target formulations are then screened through high-temperature thermodynamic stability simulation and microscopic magnetic structure calculation. This method can accurately quantify the correlation between formulation and high-temperature magnetic performance, improve formulation optimization efficiency, ensure the thermal stability and microscopic magnetic structure integrity of the optimized material, and adapt to the magnetic performance requirements under high-temperature conditions.

This invention discloses a non-magnetic magnetic balance testing device, belonging to the technical field of magnetic detection auxiliary devices. A non-magnetic balance support is fixed on a non-magnetic base, and a non-magnetic boom is fixed on the non-magnetic balance support. A non-magnetic shock-absorbing pad is provided at the bottom of the non-magnetic base. A non-magnetic windproof cover is installed between the non-magnetic balance support and the non-magnetic boom. A non-magnetic suspension rope passes through the non-magnetic windproof cover, and a strong magnet is suspended at the bottom of the rope. The strong magnet is suspended in mid-air. A non-magnetic scale is fixed to the lower side of the non-magnetic balance support and is horizontally aligned with the strong magnet. This invention features a mechanical structure that requires no external power supply. It relies on the magnetic force between the sample and the strong magnet to cause the magnet to shift. The magnitude of the shift is visually observed using the scale to determine whether the sample is magnetic and the strength of the magnetism. The structure is simple and inexpensive, making it suitable for physical and chemical teaching demonstrations and rapid on-site magnetic screening.

The application discloses a passive back cavity wall based on a plane sound field, comprising a magnetic structure, a magnetic film and a pressure-sensitive adhesive layer; each magnetic structure is a ferrimagnetic magnetic structure, and a plurality of magnetic structures are spliced through the pressure-sensitive adhesive layer to form a U-shaped or H-shaped magnetic cavity structure matched with an active device; each magnetic cavity structure is arranged at a central position directly below the corresponding active device and is fixedly connected with the corresponding position of the lower surface of the plane material through the pressure-sensitive adhesive layer; a magnetic film matched with the magnetic cavity structure is arranged on the outer surface of each magnetic cavity structure; each magnetic film has magnetism, is preliminarily fixed through the magnetic attraction generated between the magnetic film and the corresponding magnetic cavity structure, and is used for adsorbing and sealing the corresponding magnetic cavity structure, so that the passive back cavity wall matched with the active device is formed. The application assists in increasing the low-frequency vibration amplitude and displacement through the induced magnetic field formed by the passive magnetic cavity structure, and improves the low frequency and high frequency.

The present disclosure includes a force feedback apparatus and an electronic device. The force feedback apparatus includes a casing, an operation part, and a linear driving assembly. The operation part is slidably provided in the casing along the moving direction of the operation part. The linear driving assembly includes a stator provided fixedly inside the casing and a mover provided slidably inside the casing along a moving direction of the operation part, with the mover connected to the operation part. By providing one of the mover or the stator as an ultra-thin flat coil and the other as a magnetic structure, the flat coil is placed in the magnetic field generated by the magnetic structure, resulting in mutual electromagnetic force feedback between the flat coil and the magnetic structure to the user's finger.

A method and a sensor system for calibrating a magnetic sensor system are provided. The position of the magnetic structure varies within a calibration range when measuring at least four components of the magnetic field generated by the magnetic structure having a main orbit and a nonius orbit. The uncalibrated position of the structure is determined and compared with a corresponding reference position. A periodic function is obtained by calculating two coefficients of a function such that the function applied to the uncalibrated position minimizes the error caused by the comparison with the reference position.

This utility model relates to the field of writing tools, aiming to solve the problems of existing magnetic whiteboard pens having limited functionality, being unable to be simultaneously used on magnetic response surfaces and electronic all-in-one screens, and easily scratching the screen during electronic writing. It provides a magnetic whiteboard pen with all-in-one writing functionality. The magnetic whiteboard pen includes a pen barrel with a magnetic writing end and an all-in-one writing end at each end. The magnetic writing end includes a magnetic structure located at or outside the pen tip area for magnetic coupling with the magnetic response surface. A shielding cover is provided outside the magnetic structure to focus the magnetic field. The all-in-one writing end is used for writing on the all-in-one screen and is equipped with a protective sleeve. This utility model's magnetic whiteboard pen achieves dual-end adaptation for both magnetic writing and electronic all-in-one writing, while also providing screen protection, making it suitable for various writing scenarios.