22 results about "Dual coil" patented technology

The application discloses a double-coil framework high-frequency transformer framework assembling body, which comprises an inner coil framework and an outer coil framework; a coil a and a coil b are respectively wound outside the inner coil framework and the outer coil framework; an inner coil of the inner coil framework is an iron core insertion channel, and an inner coil of the outer coil framework is an inner framework embedding channel; under an axial view, an outer contour of the inner coil framework is adapted to an inner contour of the inner framework embedding channel; the double-coil framework high-frequency transformer framework assembling body can play the advantages of the split framework and realize lossless fixing.

1. Name of this design product: Car Phone Holder with Dual-Coil Wireless Charging (BK30). 2. Purpose of this design: for use as a vehicle mount and for charging electronic products. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

This invention discloses a low-height dual-coil snap-fit ​​electromagnetic relay, comprising a base, a housing, two magnetic circuit sections, and two moving spring armature components. The magnetic circuit sections are mounted on the base, with the axis of the coils in the magnetic circuit sections arranged vertically. The two moving spring armature components respectively cooperate with the two magnetic circuit sections. The housing is cover-shaped, with its opening on the side. The invention is characterized in that the base, which assembles the magnetic circuit sections and the moving spring armature components, is tilted and housed within the housing. This invention ensures that the installation direction of the relay is perpendicular to the plane containing the axes of the two sets of coil assemblies, thereby reducing the height dimension of the relay in the installation direction by using two sets of coils.

This invention relates to the field of mechanical tooling, specifically to an external dual CDC solenoid valve positioning angle tooling, comprising: a base plate, a scale plate fixedly connected to the upper center of the base plate, an angle sleeve disposed at the center of the scale plate, and a pointer fixedly connected to the outer surface of the angle sleeve, the pointer cooperating with the scale of the scale plate; two sets of base plate, scale plate, angle sleeve, and pointer are provided. This invention achieves high-precision positioning of the angles of the solenoid valve's dual coils through the arrangement of the scale plate, angle sleeve, and pointer, improving the assembly accuracy of the solenoid valve. The fitting groove of the angle sleeve and the coil terminals enable precise engagement and positioning of the coil terminals and the fitting groove, and allow for insertion and removal, making operation convenient and quick, improving assembly efficiency. The base, solenoid valve limit block, positioning block protrusion, and solenoid valve body positioning hole enable precise clamping and positioning of the solenoid valve body, reducing slippage during valve body clamping.

This invention discloses a pulse-on / off mechanical holding device, control method, relay / contactor control system, and mechanically holding relay / contactor, comprising an on / off mechanism and a holding mechanism. The on / off mechanism includes a first electromagnetic coil and a contact rod. The contact rod is dynamically connected to, or via a movable bracket, the moving contact of the relay or contactor. The holding mechanism includes a second electromagnetic coil and a locking rod. The locking rod is configured to move via the electromagnetic attraction generated by the pulse current through the second electromagnetic coil to lock and / or release the contact rod. This invention employs a dual-coil mechanical self-locking holding method, with overlapping and coordinated control timings, resulting in better technical performance. It also ensures that the relay or contactor reliably maintains its electrical connection or disconnection state after the pulse current is de-energized. Without electromagnetic attraction, external vibrations will not cause the locking rod to disengage from its blocking position. Compared to magnetic holding structures, this structure will not cause the moving and stationary contacts to disconnect even under strong vibrations, achieving the technical effect of reliable self-holding of the relay or contactor against vibration-induced jumps.

The utility model discloses a double coil pickup belongs to double coil pickup field, including pickup body and bottom shell, and the bottom shell is fixed in the fixed hole on the electric guitar inside through fixed screw rod, the inside bottom shell is provided with two limit posts, the pickup body is provided with two fixed parts on the whole and is inserted into the limit post inside with sliding, to supply with the pickup body fixed on the bottom shell, the limit post is the center ring -like joint structure, and has the slanting convex edge inside, the fixed part includes the plug -in rod on the whole of pickup body and is provided with, the drive peg of slidable through plug -in rod, the limit ring of setting in the outer wall of drive peg. The utility model discloses a double coil pickup, through adopting the pressing type cooperation structure of fixed part and limit post, when installing, utilizes the inclined plane guide and inserts into the locking quickly, only needs to press drive peg when disassembling can pull out, greatly simplifies the operation process, does not need the additional tool, has improved the dismounting efficiency, and the user is convenient to the pickup and carries out maintenance, replacement or cleaning etc. operation.

The utility model discloses a double coil brake relates to brake technical field, and this double coil brake includes the magnetic yoke ring, and the two outer lateral walls of magnetic yoke ring opposite all are established annular groove, the both sides of magnetic yoke ring all are provided with brake unit, and any brake unit includes the electromagnetic coil of setting in corresponding annular groove and sets up the brake mechanism of corresponding lateral wall on magnetic yoke ring, and brake mechanism is connected with electromagnetic coil magnetically, when braking, two groups brake unit work simultaneously, or the brake unit that does not fail work. By installing a group brake unit on the two outer lateral walls of magnetic yoke ring opposite, when the brake unit among them has a problem, another group brake unit still can guarantee the normal brake function of brake, greatly improves the security of brake, and one brake can replace the double brake in the current scheme, saves the cost.

This invention provides a portable uninterrupted meter replacement device, comprising: a replacement motor housing; circuit breaker switches fixedly installed at the inlet and outlet ends of the replacement motor housing; dual-coil relays installed on both sides of the replacement motor housing; the dual-coil relays control contactors and, during meter replacement, control the opening and closing of the inlet end via the contactors; the dual-coil relays maintain the open / closed state of the inlet end in the event of power failure; a charging module installed in the replacement motor housing for selecting charging mode or inlet-end power supply mode; a sensing module for collecting humidity, temperature, potential, and power data during three-phase meter operation; a measurement module for measuring voltage, current, electricity consumption, and power during meter replacement; a data module for processing the collected or measured data; and an RTC module for processing and calibrating time information. This invention short-circuits the inlet and outlet switches, thereby achieving the purpose of short-circuit current replacement of the metering device and meeting the requirements for high current flow.

This invention relates to the field of micro motor technology, specifically proposing a dual-stator obliquely magnetized axial flux permanent magnet motor and its driving method. The permanent magnet motor includes a rotatable rotor assembly and two stator assemblies symmetrically arranged on both axial sides of the rotor assembly. The rotor assembly includes obliquely magnetized permanent magnets. The stator assembly includes a first coil and a second coil that are concentrically arranged, wound in opposite directions, and connected in parallel. Its advantages are: The dual-stator obliquely magnetized axial flux permanent magnet motor disclosed in this invention adopts a dual-stator structure combined with a dual-coil reverse-wound parallel design. When energized, the two coils can generate a superimposed magnetic field in the same direction, significantly improving the air gap magnetic flux density and torque density. The rotor assembly uses obliquely magnetized permanent magnets, and the axial components of the permanent magnets on both sides cancel each other out, reducing the axial force on the bearings and extending the motor's lifespan.

This invention provides a sensor detection device based on the eddy current effect, comprising: a compensation module that compensates for temperature drift from -20°C to 150°C using a dual-coil differential structure and improves magnetic field uniformity through an elliptical coil design; a multi-parameter coupling module for establishing a three-dimensional decoupling model of impedance-displacement-temperature to handle the interaction between the moving and stationary scales; a determination module for determining a preset number of current vibration factors of the eddy current sensor within the current cycle; and a judgment module for statistically determining the state of the eddy current sensor based on the current vibration factors. The sensor detection device based on the eddy current effect of this disclosure can determine in real time whether the eddy current sensor is faulty, so as to maintain the normal operation of the thermal power unit when the eddy current sensor fails, avoiding economic losses caused by abnormal shutdown of the thermal power unit.

The application discloses a double-coil contactor with an electronic auxiliary contact and a control method thereof, which comprises a contactor and an electronic auxiliary contact; the contactor is internally provided with a moving contact rod and a stationary contact point, the moving contact rod is controlled through a first coil and a second coil, the electronic auxiliary contact is provided with a first contact point, a second contact point, a contactor positive contact point, a contactor negative contact point and a coil control loop point, the first contact point and the second contact point are respectively connected to one end of the first coil and the second coil, the other end of the first coil and the second coil is connected to the coil control loop point in parallel, and the positive and negative poles of the contactor are connected with the contactor positive contact point and the contactor negative contact point respectively. The double-coil contactor coil is controlled to work, mainly through a delay circuit to control the retention coil to be connected, and the double-coil switching is realized. When starting, the starting coil works, and after a period of time delayed by the delay circuit in the electronic auxiliary point, the retention coil is connected, the overall resistance of the coil is suddenly increased, the current is rapidly reduced, the coil continues to work with low power consumption, and the low-power-consumption retention requirement is met.

This invention belongs to the field of detector technology and discloses a coaxial dual-coil metal detector and its application. The coaxial dual-coil metal detector includes a transmitting module and a receiving detection module. The transmitting module consists of an RC oscillation circuit, an amplification circuit, and a transmitting coil. The receiving detection module consists of a receiving coil, a dual second-order multi-feedback bandpass circuit, a phase-locked loop detector circuit, a low-pass filter amplification circuit, a microcontroller circuit, a buzzer circuit, and a display circuit. The coaxial dual-coil metal detector of this invention consists of two main parts: a transmitting module and a receiving detection module. It achieves the detection of gel-encapsulated seeds through a complete process of transmitting a specific electromagnetic field, seed-induced signal generation, signal reception and processing, and microcontroller judgment and alarm display. Each module has a clear division of labor and works collaboratively, efficiently completing the detection task through a series of sequential processing steps such as signal amplification, filtering, and demodulation.

The application relates to a magnetic holding relay driving control system applied to a commutating switch, which comprises a control device, a driving power switch device, a switching driving device and a series three-phase double-coil magnetic holding relay; the control device is electrically connected with the driving power switch device and the switching driving device respectively, the driving power switch device is electrically connected with the switching driving device, and the switching driving device is electrically connected with the series three-phase double-coil magnetic holding relay. The application realizes the function of the commutating switch based on the series three-phase double-coil magnetic holding relay, has high reliability, can effectively eliminate the phase-to-phase short circuit problem caused by abnormal driving signals, simultaneously reduces the load power-off phenomenon caused by the open circuit of the relay, and meets the technical requirement of the commutating switch.

This application relates to a metal material identification system, method, and medium based on dual-coil detection and dynamic frequency scanning, belonging to the field of inductive sensor technology. The metal material identification system includes: a dual-coil detection module, used to generate a sweep signal within a preset frequency range according to a coil control signal, to excite the eddy current effect of the target object, and to detect and amplify the corresponding induced oscillation signal; a digital output module, used to output the material identification result of the target object; and a control module, used to generate a coil control signal according to the sweep parameters, receive the induced oscillation signal, calculate the metal quality factor, and match and identify the material of the target object by combining a preset material standard parameter range. Through dual-coil mutual inductance verification and dynamic frequency scanning technology, the dependence on material is reduced, and high-precision identification of all-metal materials is achieved, meeting the application scenarios for mixed materials.

A coil switching control system for an electric guitar, comprising a first rotary switch, the first rotary switch controls a neck humbucker multi-coil pickup, a second rotary switch, the second rotary switch controls a bridge humbucker multi-coil pickup, a first push pull potentiometer, the first push pull potentiometer controls a volume, a second push pull potentiometer the second push pull potentiometer controls a tone and an electrical circuit connecting the first multi-position rotary switch to the neck humbucker multi-coil pickup, the second multi-position rotary switch to the bridge humbucker multi-coil pickup, the first push-pull potentiometer and the second push-pull potentiometer to an output amplifier, the combination of the multi-position rotary switches and the push-pull potentiometers enables a selection of a multiplicity of coil configurations for the electric guitar to create at least 51 different tonal combinations.

This invention discloses a dual-coil driver and its control method for an axial-radial hybrid motor, belonging to the field of motor drive and control technology. The driver includes a main controller, a rotor position sensor, a common DC bus, an axial motor drive unit, and a radial motor drive unit. The axial motor drive unit includes an axial power bridge and a first ideal diode protection circuit, while the radial motor drive unit includes a radial power bridge and a second ideal diode protection circuit. Based on the rotor position information obtained from the rotor position sensor, the main controller can selectively operate in either a single-drive mode or a synchronous drive mode. This invention fundamentally solves the safety hazard of the other coil's induced power generation backflow damaging the driver during single-coil drive by using the ideal diode protection circuit. Simultaneously, it achieves flexible independent control and precise coordinated drive of the two coils, offering advantages of high reliability, high efficiency, and high flexibility.

This invention discloses a dual-coil plasma stripping device. The invention relates to the field of semiconductor plasma stripping process equipment technology, and includes an air intake mechanism and a stripping mechanism. The upper cavity of the stripping mechanism includes a ceramic outer cylinder, a ceramic inner cylinder, an outer radio frequency (RF) coil, and an inner RF coil. The outer RF coil is located on the outside of the ceramic outer cylinder, and the inner RF coil is located on the inner wall of the ceramic inner cylinder. The advantages of this invention are: by adopting a dual-coil design with an outer RF coil and an inner RF coil, the outer RF coil, composed of a single-layer multi-strand coil, can carry a larger current, thereby generating a stronger electromagnetic field, which helps to improve the plasma generation efficiency and make the gas ionization more complete. The inner RF coil, spirally wrapped around the inner wall of the ceramic inner cylinder, works in conjunction with the outer RF coil to make the electromagnetic field more uniformly distributed in the reaction chamber, thereby ensuring that the plasma can uniformly cover the entire surface of the wafer to be processed, greatly improving the uniformity and quality of stripping.

The application discloses a double-coil series control driving electromagnetic valve and a working method thereof. A double-coil series structure is arranged in the shell, a moving iron core is arranged directly below the double-coil series structure, and the moving iron core is slidingly fitted between the lower side space of the double-coil series structure and the internal space of the shell. A pin shaft and a hinged plate are arranged in the shell, the pin shaft is rotationally connected with the shell, the hinged plate is provided with a hole in the middle and is sleeved on the outer cylindrical surface of the pin shaft, the second end of the hinged plate is located directly below the moving iron core, the bottom end of the moving iron core and the first end of the hinged plate are respectively provided with elastic elements between the top surface of the shell, a diaphragm is arranged between the bottom of the shell and the top of a valve body, the central region of the diaphragm is arranged on the surface of the top of the valve body, and the two ends of the diaphragm are respectively located directly below the first end of the hinged plate and the second end of the hinged plate. Three channels are arranged in the valve body and are communicated with the outside and are located directly below the diaphragm. The structure is simple, easy to integrate and install, and quick response in the opening and closing process of the valve is ensured.

The utility model relates to piano playing device technical field, concretely relates to a driving device and piano automatic performance equipment with double coil electromagnet. The driving device includes interval arrangement's drive component and auxiliary assembly, and drive component includes first core and first coil module, and first coil module includes first support piece, first coil group to and the first sleeve of setting on both of them, and auxiliary assembly includes second core and second coil module, and second coil module includes second support piece, second coil group to and the second sleeve of setting on both of them, and first core is connected with second core through the connecting portion, and the length L1 of first core is greater than the length L2 of second core, and the length L3 of first coil group is greater than the length L4 of second coil group. The scheme can make the emission of piano in the performance process more fluent and improve the performance quality through the effective control of different stages of piano playing, especially the control of the sound stopping process of sound stopping cotton.