2168 results about "External circuit" patented technology

An optical element driving mechanism is provided. The optical element driving mechanism includes a movable portion, a fixed portion, a first driving assembly, and a circuit assembly. The movable portion is used for connecting to an optical element. The movable portion is movable relative to the fixed portion. The first driving assembly is used for driving the movable portion to move relative to the fixed portion. The circuit assembly is used for connecting to an external circuit, and is affixed on the fixed portion.

The invention provides a display panel and a preparation method thereof and a display device.The display panel comprises a substrate, a plurality of light-emitting devices and at least one isolation structure, the light-emitting devices and the isolation structure are located on one side of the substrate, the light-emitting devices are arranged into multiple groups, each group comprises at least two light-emitting devices, the light-emitting devices in the same group have the same light emitting color, and the light-emitting devices in the same group have the same light emitting color. The at least one isolation structure defines a plurality of isolation openings, and the light-emitting devices in the same group are located in the same isolation opening. In the display panel, when the light-emitting devices are prepared in batches based on the first isolation structure, partial areas of the group where the light-emitting devices are located are not limited by the isolation structure, so that the light-emitting devices can be directly connected with an external circuit, and the risk that the driving impedance is too large due to poor connection between the light-emitting devices and the first isolation structure is reduced.

An optical element driving mechanism is provided. The optical element driving mechanism includes a movable portion, a fixed portion, a driving assembly, and a circuit assembly. The movable portion is used for connecting to a first optical element. 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 circuit assembly is electrically connected to the driving assembly. The driving assembly is electrically connected to an external circuit through the circuit assembly.

The invention relates to automatic foam pasting and external line shaping equipment for a PCBA. The automatic foam pasting and external line shaping equipment comprises a rack, a PCBA feeding assembly, a PCBA conveying line, a foam pasting assembly and a line folding assembly. The PCBA feeding assembly comprises a feeding multi-axis mechanical arm and a feeding vacuum suction nozzle. The foam attaching assembly comprises a foam attaching frame, a foam attaching mechanical arm, a foam attaching mechanical clamping jaw and a foam attaching vacuum suction head. The line folding assembly comprises a line folding transfer assembly and a line folding mechanism; the line folding mechanism comprises a line folding frame, a line folding positioning table, a line folding fixed clamping corner air cylinder, a line folding plate and a line folding turnover driving piece, and the line folding turnover driving piece drives the line folding plate to rotate. The foam attaching manipulator of the foam attaching assembly is matched with the PCBA conveying line to achieve automatic foam attaching on the PCBA, and the efficiency is high; according to the line folding mechanism, the pins are automatically bent into the L shape through the overturned line folding plate, the foam is clamped between the pins and the PCBA, and the foam cannot be damaged by interference of the line folding plate in the whole process.

The invention discloses a high-temperature superconducting electric maglev vehicle multi-mode damping device based on an electromagnetic shunting technology. The high-temperature superconducting electric maglev vehicle multi-mode damping device comprises a coil system and a vehicle suspension frame. Wherein the coil system comprises a vehicle-mounted superconducting magnet, an 8-shaped suspension guide coil and a propulsion coil; the vehicle suspension frame carries a vehicle-mounted superconducting magnet, a low-temperature container, a damping coil and an external circuit module. Accurate design of electromagnetic parameters is achieved through a plurality of branch parallel circuits, dynamic responses of different frequencies can be effectively matched, and multi-mode vibration reduction is achieved in a passive mode. An optimized damping effect can be provided for various vibration modes in a rail system without depending on an active control system, and the vibration reduction performance of the system is remarkably improved. Aiming at different vibration frequencies, adjustment can be carried out by replacing components such as capacitors and inductors in the branches, the structure is simple, and the cost is low.

The invention relates to the technical field of circuit board processing, and discloses a Mini LED circuit board immersion etching system which comprises an etching tank body, the bottom of the inner wall of the etching tank body is fixedly connected with a limiting plate, and the bottom of the inner wall of the etching tank body is further provided with a positioning piece capable of being matched with the limiting plate to fix an external circuit board; wherein the positioning piece comprises a fixing plate, the lower surface of the fixing plate is fixedly connected with the bottom of the inner wall of the etching tank body, and the fixing plate is slidably connected with a connecting rod through a slotted hole formed in the fixing plate. The immersion type etching system for the Mini LED circuit board can effectively solve the problems that in the prior art, when the circuit boards are placed in an etching tank for etching, the circuit boards cannot be stably placed in the etching tank, and a plurality of circuit boards are mutually stacked, so that overlapped surfaces among the circuit boards cannot be in full contact with etching liquid, the uniformity of a circuit board etching process is reduced, and the etching efficiency is improved. And therefore, the etching effect is poor.

The invention provides a simulation method of a direct current electromagnetic switch series connection multi-fracture arc. The method comprises the following steps: S1, coupling electromagnetic system simulation and mechanical dynamics, namely obtaining a two-dimensional interpolation table of electromagnetic attraction, coil current and iron core displacement through electromagnetic system simulation, and importing a mechanical dynamics simulation model to obtain the breaking speed of a direct-current electromagnetic switch contact; s2, magnetic induction intensity of different positions is obtained through a magnetic blow-out system model, and based on the magnetohydrodynamic theory, a physical field is coupled to establish an arc simulation model of a single fracture; s3, performing series multi-fracture arc simulation by means of coupling an external circuit; according to the method, the influence of different parameters (the number of fractures, asynchronous breaking time, breaking speed, magnetic induction intensity distribution, gas physical property parameters, different loads and the like) on the evolution process of the series multi-fracture arc can be analyzed.

An optical element drive mechanism is provided. The optical element drive mechanism includes an immovable part, a movable part, a drive assembly, and a circuit assembly. The movable part is connected to an optical element. The movable part is movable relative to the immovable part. The drive assembly drives the movable part to move relative to the immovable part. The circuit assembly is electrically connected to an external circuit. The immovable part includes a corresponding structure corresponding the circuit assembly.

The invention belongs to the technical field of sewage treatment, and particularly relates to an anaerobic ammonia oxidation-photoelectric denitrification deep nitrogen removal method. The method comprises the following steps: firstly, adopting a double-chamber reactor; introducing part of sewage into the cathode chamber, carrying out Anammox reaction under a dark state condition to remove ammonia nitrogen and part of nitrite nitrogen, and synchronously generating nitrate nitrogen; turning on a light source to irradiate the anode chamber, exciting photo-induced electrons by a photosensitizer, transmitting the photo-induced electrons to the cathode chamber through an external circuit, and driving the sulfur autotrophic denitrification sludge to reduce residual nitrite nitrogen and nitrate nitrogen generated by Anammox; the total nitrogen removal rate is close to 100%. According to the invention, photo-induced electrons are used as the only denitrification electron donor, so that the addition of a carbon source / sulfide is thoroughly avoided, and the risk of secondary pollution is eliminated. The method is suitable for green low-carbon deep treatment of sludge digestion liquid and pharmaceutical wastewater high-ammonia-nitrogen low-carbon-nitrogen-ratio sewage.

The invention relates to the technical field of relay detection, and particularly provides a relay fault detection circuit, method and system applied to an energy storage system, and the circuit comprises an energy storage system positive pole loop, an energy storage system negative pole loop, and a voltage collection circuit. The energy storage system cathode loop is that the cathode of the battery is connected with the cathode of the external circuit through a main cathode relay, and the voltage acquisition circuit comprises a battery end voltage transmitted to the main control chip through a voltage acquisition module and an external circuit end voltage transmitted to the main control chip through the voltage acquisition module. The main control chip sends control signals to the control ends of the main positive relay and the main negative relay and receives feedback signals of the state feedback end. By means of the optimized detection circuit, multiple independent voltage detection circuits and corresponding AD conversion units do not need to be additionally arranged, and the fault that the main positive relay and the main negative relay cannot be closed and the fault that the main positive relay and the main negative relay are adhered in the operation process can be accurately recognized.

The invention discloses a chip winding common mode inductor, which relates to the technical field of inductors, and comprises a magnetic core, a base, a winding and a welding block, the surface of the welding block is provided with a threading hole, and the welding block is provided with a soldering tin cavity; and the deformation element is arranged on the welding block and generates bending deformation at a high temperature so as to generate bending acting force on one end, penetrating into the soldering tin cavity, of the winding. According to the invention, the assembly of the winding and the welding block is simplified, when the welding block is welded with the bonding pad of the external circuit board, after the molten soldering tin is solidified, the connection area of the molten soldering tin and the welding block is increased, the connection firmness degree of the welding block and the bonding pad is further improved, and in addition, the temperature of the molten soldering tin is relatively high, so that the deformation element is bent and deformed at high temperature; the bending deformation part of the deformation element extrudes the end part of the winding, so that the end part of the winding is bent, and after the soldering tin is solidified, the end part of the winding can be connected with the welding block by melting the soldering tin, and the pulling resistance of the winding can be increased, so that the winding is not easy to fall off from the welding block.

An external connection bus bar to be connected to a storage element group having a plurality of storage elements and having an output electrode terminal for outputting electric power to an external circuit includes a main body portion to be connected to the output electrode terminal, an external connection terminal to be connected to an external circuit, and a circuit board connection portion to be soldered to a bus bar land provided on the circuit board. The external connection terminal is provided between the main body portion and the circuit board connection portion.

The invention relates to a switch assembly and a temple switch, and relates to the technical field of vehicle accessories. The switch assembly includes: a housing; the action reed is movably connected in the shell; the pin comprises an inserting part used for being connected with an external circuit and an abutting part used for being connected with the action reed, and the inserting part is inserted into the shell and extends out of the shell; the linkage rod extends to the outer side of the shell and is movably connected with the shell, and the linkage rod drives the action reed to move under the action of external driving force, so that the action reed is propped against or separated from the propping part of each pin to realize connection or disconnection between the pins; the reset piece is located in the shell, and the reset piece forces the action reed to slide in one direction, so that the action reed always has the trend of moving towards the abutting part or moving away from the abutting part. The circuit has the effects of good contact stability and high switching precision.

The invention provides a method and a system capable of separating and measuring alternating current copper loss and iron loss of a motor. The method comprises the following steps of: manufacturing a part of stator bodies of an N-line motor and a 2N-line motor in each slot as test objects; testing total loss data and external circuit characteristic parameters of partial stators of the N line and the 2N line of each slot under load operation; obtaining a difference value of alternating current copper loss; correcting a simulation model of the alternating current copper loss of the motor by using the obtained alternating current copper loss difference value, and outputting the alternating current copper loss of the motor of each slot N line and each slot 2N line under different rotating speeds and different torques; carrying out no-load test by using an unpunched magnetic rotor to obtain no-load loss; according to the total loss, the copper loss and the no-load loss obtained by testing the N-line stator and the 2N-line stator, the iron core loss is obtained; and correcting the iron core loss simulation model of the motor by using the obtained iron core loss value, and outputting the iron core loss of each slot of N-line and 2N-line motors at different rotating speeds and different torques. According to the invention, separation and calculation of AC copper loss and iron core loss of the motor can be realized.

The utility model discloses a magnetic shaft with an awakening function, which comprises a base, an upper cover, a guide core, a reset spring, a permanent magnet, a Hall element, a moving plate which is arranged on the side edge of the guide core and is integrally downwards and elastically bent, and a static plate arranged below the moving plate, at least one protruding edge is formed on the side edge of the guide core, the movable piece comprises at least one movable piece supporting arm transversely extending in the direction of the protruding edge, the movable piece supporting arm is driven by the protruding edge to make contact with or be separated from the static piece under the acting force that the guide core is pressed by external force, and the movable piece and the static piece are electrically connected with an external circuit board. According to the wireless keyboard, the mechanical switch is triggered to wake up the Hall element to realize signal transmission when a user presses the wireless keyboard, the mechanical switch and the Hall element do not interfere with each other when the wireless keyboard is not pressed, and the Hall element is dormant, so that the aims of saving electric power and prolonging the service life of the wireless keyboard are fulfilled; and in addition, the mute arm is arranged for buffering the downward pressing impact force, so that the mute function is achieved.

A luminous device includes a flexible circuit board, a battery, a plurality of predetermined color light-emitting diodes, a sensor and a control chip. The battery, the predetermined color light-emitting diodes, the sensor and the control chip are arranged on the flexible circuit board. The sensor is configured to detect an external force to generate a control signal. The control chip is connected to the sensor, the predetermined color light-emitting diodes and the battery. The control chip is configured to receive the control signal and select a lighting mode according to the control signal to control the predetermined color light-emitting diodes emit light. The luminous device of the invention uses the flexible circuit board to sense the external force to emit light without requiring external circuits, so as to reduce the overall volume. Moreover, the luminous device of the invention can be installed or attached on any detachable object.

The invention provides a preparation method of a semiconductor packaging structure and the semiconductor packaging structure, and the method comprises the steps: manufacturing a plurality of crystal grains on the surface of a selected semiconductor material, and cutting out the crystal grains to obtain a bare chip; etching wiring on the packaging substrate to obtain a wiring substrate, and mounting the bare chip to a corresponding position of the wiring substrate; the bare chip bonding pad is communicated with the wires on the wiring substrate, an initial semiconductor packaging structure is obtained, and the initial semiconductor packaging structure is provided with a filling part used for eliminating the height difference between the bare chip and the wiring substrate; the initial semiconductor packaging structure is sealed, an external connection terminal is reserved, the semiconductor packaging structure is obtained, and the external connection terminal is used for being connected with an external circuit; compared with the prior art, under the condition that a lead bonding mode is not needed, the height difference between the bare chip and the wiring substrate is eliminated through the filling part, staggered stacking of wires can be avoided, signal crosstalk is reduced, signal quality is improved, and more reasonable layout is facilitated.

The invention relates to the field of photo interrupter packaging technology, in particular to a reflective photo interrupter packaging structure, a secondary pressing mold and a packaging method.The reflective photo interrupter packaging structure comprises an optical assembly, and the optical assembly comprises a light source and a light receiver and is used for emitting and receiving light rays; the circuit board is a split circuit board and is used for bearing the light source and the light receiver respectively; the first packaging layer covers the optical assembly and the circuit board and is made of an epoxy resin material; the second packaging layer covers the first packaging layer and is made of an epoxy resin material; a part of the circuit board penetrates out of the first packaging layer and the second packaging layer and is used for being connected with an external circuit. The packaging structure has the effect of improving the packaging stability and reliability of the reflective photo interrupter.

A scalable in-vehicle video system and a signal control apparatus are provided. The signal control apparatus of the scalable in-vehicle video system can be a standalone device that is used to connect with various peripheral devices for transmitting signals. The signal control apparatus can implement an audiovisual hub device, and can be disposed in a vehicle. The signal control apparatus includes a control unit, multiple interfaces, at least one communication port, and multiple wireless or wired connection ports. The signal control apparatus connects with a sensor and an external circuit via the multiple interfaces, connects with an external system via the communication port, and connects with multiple video recorders via the connection ports. Audiovisual files generated by the video recorders can be stored to a memory module of the signal control apparatus, or can be transmitted to the external system through the signal control apparatus.

The invention discloses a myoelectricity and ultrasound collaborative sensing flexible integrated array and a preparation method thereof. The flexible integrated array comprises an ultrasound sensing array and a myoelectricity sensing array which are integrated on a wearable flexible film, a piezoelectric module layer of each ultrasonic sensing module and a myoelectricity electrode layer of each myoelectricity sensing module in the array are connected to an external circuit, and the sensing modules are arranged and designed according to muscle positions and directions of specific parts of a human body to form a high-density and high-precision ultrasonic / myoelectricity cooperative sensing hybrid integrated array. According to the flexible integrated array, the ultrasonic signal and the electromyographic signal of the muscle can be obtained at the same time, so that multi-dimensional muscle state monitoring is achieved, when the flexible integrated array monitors the abnormal signal, the position of the abnormal muscle is determined through the array element receiving the abnormal signal, and automatic positioning of the abnormal muscle can be achieved.

The invention relates to photochromic glass and a vehicle. The photochromic glass comprises two glass substrates and a photochromic assembly clamped between the two glass substrates, the photochromic assembly comprises a photochromic layer, a diffusion ring, a first conductive layer and a second conductive layer, the diffusion ring and the photochromic layer are arranged on the first conductive layer, and the second conductive layer is located on the side, away from the first conductive layer, of the photochromic layer. The diffusion ring is insulated from the color-changing layer and the second conductive layer respectively; the diffusion ring and the second conductive layer are respectively communicated with an external circuit so as to form a voltage difference between the first conductive layer and the second conductive layer to change the color of the color changing layer, the diffusion ring surrounds the periphery of the color changing layer, and the conductive sheet resistance of the material of the diffusion ring is smaller than that of the material of the first conductive layer. According to the photochromic glass, the diffusion time of the current in the first conductive layer is shortened through the diffusion ring, so that the current of an external circuit can be diffused to the photochromic layer more quickly, and the response speed of the photochromic glass is increased.

The present application provides a sound production apparatus and an electronic device. The sound production apparatus comprises a housing, a magnetic circuit assembly, a vibration assembly, and a spider. The magnetic circuit assembly has a first magnetic gap and a second magnetic gap. The vibration assembly comprises a diaphragm component and a voice coil component. The voice coil component comprises a first voice coil disposed corresponding to the first magnetic gap and a second voice coil disposed corresponding to the second magnetic gap. The spider is electrically connected to the voice coil component and an external circuit. The spider comprises a connection arm, a bent arm, and a vibration arm connected in sequence. The connection arm is disposed on the diaphragm component and is electrically connected to the first voice coil and the second voice coil. The vibration arm extends in a bent shape. The bent arm is connected between the connection arm and the vibration arm, and the bent arm extends from an inner end of the vibration arm along a vibration direction of the vibration assembly and is connected to the connection arm. This configuration improves the magnetic field strength of the magnetic circuit assembly, thereby increasing the BL value of the sound production apparatus and ensuring the acoustic performance of the sound production apparatus.

A stretchable circuit board assembly and a method for manufacturing the same are provided. The circuit board assembly includes a flexible circuit board and an outer circuit board. The flexible circuit board includes a first base layer and an inner wiring layer. The flexible circuit board is divided into a connecting area and a stretchable area. The inner wiring layer within the connecting area includes an electrical connecting portion exposed from the outer circuit board. The stretchable area is configured to deform into at least one bent portion. The bent portion is used to cause the electrical connecting portion to stretch relative to the outer circuit board. The outer circuit board includes a second base layer and an outer wiring layer. A surface of the second base layer away from the outer wiring layer defines at least one blind groove. The blind groove is configured to receive the bent portion.

The invention provides a micro-grid networking data processing method and system for a bidirectional charging pile, and relates to a data processing technology, and the method comprises the steps: obtaining a bidirectional charging and discharging node in a micro-grid where the bidirectional charging pile is located, segmenting the micro-grid based on the bidirectional charging and discharging node, and obtaining a corresponding node internal circuit and a node external circuit; the method comprises the following steps: receiving energy storage equipment configured by a user for a node internal circuit, the energy storage equipment comprising fixed energy storage equipment and non-fixed energy storage equipment, receiving load equipment configured by the user for a node external circuit, and monitoring and processing the fixed energy storage equipment, the non-fixed energy storage equipment and the load equipment to obtain monitoring data; acquiring a power utilization habit of a microgrid corresponding to a user, and determining a user use strategy based on the monitoring data and the power utilization habit; and based on the user usage strategy, carrying out segmentation processing on the micro-grid to obtain a line power supply relationship among the fixed energy storage device, the non-fixed energy storage device and the load device, and outputting a corresponding line display topology.

An object is to provide a technique that eliminates the need for an external circuit for enhancing the breakdown voltage. A switching element drive circuit includes a primary circuit and a secondary circuit, and an insulating element isolating the primary circuit and the secondary circuit from each other in terms of a direct current. The secondary circuit includes a semiconductor substrate, a detector provided on a portion of the semiconductor substrate, including a pn junction isolation portion, and configured to detect a voltage of a high voltage terminal, and a controller provided on a remaining portion of the semiconductor substrate and configured to control a control voltage of a semiconductor switching element based on a second signal and a detection result of the detector.

The utility model discloses an energy storage module easy to maintain, which comprises a battery unit, a bearing unit, an end frame, a connecting module and a safety module, and a wiring terminal is arranged at the front end of the battery unit along the Y-axis direction; the bearing unit is provided with a connecting part; the end frame is locked and fixed on the connecting part; the control module is fixedly connected with the end frame and is connected with the battery unit; the connecting module is provided with a connecting terminal and an electric connecting piece, the connecting terminal is used for being connected with an external circuit, and the electric connecting piece is connected with the connecting terminal and is configured to be suitable for being fixedly connected with the wiring terminal when the end frame is locked to the connecting part; the electric connecting piece is provided with a first wiring end and a second wiring end; the safety module is suitable for being locked with the end frame, the first wiring end and the second wiring end in the Y-axis direction and located in front of the end frame, the first wiring end and the second wiring end. The safety module and the control module are arranged in the X-axis direction. The insurance module is easy to maintain and does not interfere with the control module during maintenance.

The invention relates to a solar power generation assembly and a preparation method thereof, and a preparation method of a perovskite device. The preparation method of the solar power generation assembly comprises the following steps: providing a substrate; constructing a plurality of perovskite devices on the substrate; wherein the perovskite device comprises a light absorption area and a functional area, the light absorption area is used for converting solar energy into electric energy, the functional area comprises a bus electrode, and the bus electrode is electrically connected with the light absorption area to collect the electric energy; a cover plate is attached to the surface of each perovskite device; cutting the substrate and the cover plate to obtain a plurality of solar power generation assemblies; the solar power generation assembly comprises a sub-substrate, a perovskite device and a sub-cover plate which are stacked in sequence; the sub-substrate is obtained by cutting the substrate, and the sub-cover plate is obtained by cutting the cover plate. The perovskite device of each solar power generation assembly is provided with the bus electrode, so that an external circuit can be directly connected with the bus electrode, a junction box is omitted, and the overall size of the solar power generation assembly is reduced.

The invention discloses an intelligent fuse, which comprises a conductor pre-fracture, an explosion device, a cutting device and an amplitude limiter, and is characterized in that the amplitude limiter is connected in series between the explosion device and a conductor at the front end of the conductor pre-fracture and is used for transmitting a generated voltage drop signal to the explosion device when an external circuit is short-circuited; the explosion device comprises two external signal input ports, one external signal input port is connected with the amplitude limiter, and the other external signal input port is connected with the external signal receiver; and the energy generated by the explosion device cuts off the conductor pre-fracture. Based on a transformer-free circuit structure, intelligent control of a circuit trigger signal and an external trigger signal on the fuse is realized, high and low voltage isolation is realized, the current can be automatically cut off at the moment when an external control signal is received or the current exceeds a detection threshold, and finally the purpose of improving the safety of an electrical system is achieved.

The invention discloses a two-dimensional differential interference quantitative phase microscopic imaging system based on an active liquid crystal polarization grating. According to the invention, two-dimensional quantitative DIC imaging can be realized through a special light path design based on the strong light field regulation and control capability of the active liquid crystal grating, and the problem that a traditional DIC system can only carry out nonlinear imaging in one direction is solved; according to the invention, the liquid crystal grating with a small volume is adopted to replace an optical refraction element with a large volume in a traditional DIC system, so that a more compact optical path design is realized, the current requirements on miniaturized and lightweight optical devices are met, the optical grating can be easily integrated into other microscopic imaging equipment, multi-modal imaging is realized, and the application range of the optical grating is greatly expanded; the active liquid crystal grating is adopted, the state of liquid crystal molecules is controlled through an external circuit, rapid switching of an imaging mode between bright field imaging and two-dimensional quantitative DIC imaging can be achieved, and the requirements for sample observation under different conditions are met.

The invention provides a power-on and power-off control method and device, electronic equipment and a storage medium, and the method comprises the steps: obtaining module enabling input which is used for indicating power-on or power-off; determining each target power supply to be controlled and a control time sequence of each target power supply from each power supply based on the module enabling input, and generating a trigger signal and an expected output for each target power supply; and determining a first target power supply to be controlled based on the control time sequence among the target power supplies, sending a trigger signal to the first target power supply, and sending a trigger signal to the next target power supply after the output of the first target power supply is consistent with the expected output, thereby overcoming the defect that the power-on and power-off time sequence control of the complex equipment in the traditional scheme depends on an external circuit. The power-on and power-off control circuit has the advantages that the defects of difficulty in accurate control in the prior art are overcome, accurate control of any power-on and power-off time sequence can be realized without a complex circuit, simplicity, high efficiency and accuracy of a control process can be guaranteed, and sleep and sleep functions of equipment can be compatible.