93 results about "Electrical Failure" patented technology

The invention discloses a transformer with a leading-out mechanism, and relates to the technical field of transformers. The transformer comprises a transformer body, a plurality of high-voltage wire outlet ends are fixed to one side of the top of the transformer body, a plurality of low-voltage wire outlet ends are fixed to the other side of the top of the transformer body, a protective shell is fixed to the top of the transformer body, and a plurality of vertical plates are fixed to the top of the transformer body; and an opening for accommodating the vertical plate is formed in one side of the protective shell. Through the arrangement of the anti-dragging device, the screw rod, the arc clamping plate and the limiting rod are matched to drive the arc clamping plate to clamp and fix the guide wire, so that the guide wire can be firmly fixed at a specified position, and the situation that the guide wire is loosened or falls off due to external force (such as collision or dragging of a worker during operation) is reduced; therefore, the stability of electrical connection can be ensured, and the problem of electrical failure or poor contact is avoided.

Examples described herein provide a method for predicting electrical failures within a vehicle. The method includes selectively enabling and disabling an electrical load for the vehicle. The method further includes collecting operational data about the electrical load during the selectively enabling and disabling of the electrical load. The method further includes training the model based at least in part on the operational data to predict a failure associated with the electrical load or a wiring harness associated with the electrical load.

The invention relates to a multi-stage starter generator rotating part electrical fault online diagnosis method, and provides a multi-stage brushless synchronous starter generator rotating part electrical fault online diagnosis and positioning method based on exciter rotor current characteristics. The method comprises the following steps: firstly estimating three-phase current of an exciter rotor, and then carrying out a series of processing such as absolute value taking, average value taking, normalization and fundamental wave filtering on the estimated rotor current to obtain characteristic quantities such as a maximum ratio difference and a minimum approximate difference for electrical fault diagnosis and positioning of the rotating part of the multi-stage starter generator. The method provided by the invention can diagnose whether the rotating parts (including an exciter rotor winding, a rotating rectifier and a main motor excitation winding) of the multi-stage starter generator have electrical faults on line, and can judge the fault type (open-circuit fault or short-circuit fault) and the specific position of a fault point. The method is beneficial for improving the operation reliability and the maintenance convenience of the multi-stage starting power generation system.

Provided is a junction box for a motor. The junction box (1) is provided with a vent hole (1h) that allows the interior and exterior of the junction box (1) to communicate with each other, and comprises a box body (11) and a box cover (12). The box body (11) is fixed to a housing (2) of a motor and provided with an opening open towards the outside, and the box body (11) is provided with a collection groove (1c) for collecting condensed water. The box cover (12) is mounted at the box body (11) and closes the opening of the box body (11), the box cover (12) is provided with a guide flow path, the guide flow path is obliquely arranged relative to the horizontal direction, and the bottom end of the guide flow path is aligned with the opening of the collection groove (1c) in the vertical direction, so that the condensed water condensed on the box cover (12) can be guided by the guide flow path and flows into the collection groove (1c). Therefore, the possibility of electrical failures due to the condensed water condensed on the junction box dripping onto a cable can be greatly reduced or even avoided. Also provided is a motor comprising the junction box.

The invention provides a method for stacking core particles on a wafer and a semiconductor device. The method comprises the following steps of: S1, arranging the wafer in a laminating device in a manner that one surface with a circuit pattern structure faces downwards; s2, absorbing the upper surface of a wafer from top to bottom by using a wafer absorbing device, and placing the wafer in the laminating device in a manner that one surface with a circuit pattern structure faces upwards; and S3, carrying out bonding by taking the direction from bottom to top as the bonding direction from the wafer to the wafer, and completing the stacking of the core particles on the wafer. According to the invention, particle pollution introduced by intermediate processes (such as cutting, picking, overturning and the like of a chip) in processing engineering is avoided, so that the technical problems of bonding strength reduction and bonding electrical failure are greatly avoided.

A method detects electrical fault states of a removable battery pack and / or an electrical device, in particular a charging device, a diagnostic device or an electrical consumer, that can be connected to the removable battery pack, using a first monitoring unit integrated in the removable battery pack. The method includes measuring a charging or discharge current using a first current measuring apparatus integrated in the electrical device and transmitting the measured current directly or as a converted voltage value to the first monitoring unit of the removable battery pack, and determining, using the first monitoring unit, based on the charging or discharge current and / or the voltage value calculated therefrom, whether the removable battery pack is operating in a permissible operating range.

The invention provides a three-phase asynchronous motor fault diagnosis method and device and a storage medium, and belongs to the field of motor fault diagnos.The diagnosis method comprises the steps that motor state signals of a to-be-detected motor are obtained, and the motor state signals comprise a three-phase current signal, a stator current signal and a vibration current signal; performing sliding discrete Fourier transform on the motor state signal to obtain a spectrogram at each sampling moment; and performing spectral analysis on the spectrogram at each sampling moment, and determining the fault type of the motor. And scaling the spectrogram according to a specified frequency range and a specified sample number to obtain a spectrogram in a specified interval. Through the method provided by the invention, various common motor faults such as a coupling eccentric fault, a rotor fracture fault, a three-phase imbalance fault, a bearing inner ring fault, a bearing outer ring fault and a bearing rolling body fault can be judged and pre-warned, and the problems of missing detection, misjudgment, low reliability and the like existing in a conventional diagnosis method are solved.

The invention discloses an electrical fault positioning system and method for an electric anastomat, and belongs to the technical field of medical equipment fault detection.The electrical, thermal and mechanical operation data of equipment are comprehensively collected through a multi-modal sensing subsystem, and real-time feature extraction and AI reasoning are conducted through an edge calculation unit; according to the method, a deep learning model is adopted to carry out preliminary fault classification, a strategy of combining a confidence coefficient mechanism and digital twinborn simulation verification is introduced, and multi-physics field coupling simulation and root cause analysis are carried out on a low confidence coefficient result, so that accurate positioning of faults is realized. According to the method, physical simulation and data-driven intelligence are fused, the problems that complex fault diagnosis is high in uncertainty and difficult to position are effectively solved, the accuracy, reliability and operation and maintenance efficiency of fault diagnosis of the electric anastomat are remarkably improved, and predictive maintenance capacity is achieved.

The utility model relates to the technical field of connectors, in particular to a connector with a waterproof effect. The connector with the waterproof effect comprises a connecting male head, an air bag and a threaded sleeve, connecting plugs used for data transmission are fixedly connected to one end of the connecting male head at equal intervals, a connecting female head is inserted into one end of the connecting male head, and connecting slots matched with the connecting plugs are formed in the end, close to the connecting male head, of the connecting female head. One end, close to the connecting male head, of the connecting female head is provided with an air bag, the inner wall of the connecting male head is provided with a sealing groove, through an innovative threaded connection and fixing mechanism, the connector can provide stronger fastening force, and the influence of external vibration, impact and other environmental factors on the connection stability is effectively resisted; according to the design, the stability of the connector in the long-term use process is ensured, and the electrical fault risk caused by loosening or falling off is reduced.

A test stand for confronting a test piece with a simulated electrical fault. The test stand includes a central fault control unit for orchestrating the simulated electrical fault, and at least one local node configured as a failure insertion unit (FIU), with a switch arrangement for falsifying selected electrical currents in the test stand. The fault control unit is configured to create an abstract fault description, which specifies at least one electrical fault to be applied to an electrical line, and to transmit it to the local node. The local node is configured to derive from the abstract fault description an activation rule for the switch arrangement that is suitable for applying the electrical fault to the electrical line, and to apply the electrical fault to the electrical line by activating the switch arrangement according to the activation rule.

The semiconductor structure and the manufacturing method thereof provided by the present disclosure can effectively control the depth / degree of the bonding interface recess in the CMP process by setting the bonding pad of the same size on the different size pads and then performing the CMP process, so as to avoid the electrical failure phenomenon as much as possible.

This application provides an IC package electrical failure analysis sample, preparation method, and testing method. The method includes sequentially wrapping a first material layer and a second material layer on the outside of the IC package to form an inlay; grinding the inlay from the back of the IC package until the back of the bare die and the packaging wires within the molding compound are exposed; removing the remaining first and second material layers on the outside of the IC package; and electrically connecting the packaging wires within the molding compound through multiple conductive pads, wherein each conductive pad connects several packaging wires of the same electrical property. This application does not damage the pads on the bare die, thereby helping to ensure the accuracy of subsequent electrical failure analysis results.

A method for forming a semiconductor structure comprises the following steps: providing a wafer which comprises an isolation region and a device region; forming a device structure on the device region, wherein the device structure comprises a first layer structure and a second layer structure on the first layer structure; an isolation structure located on the wafer is formed, the isolation structure is located on the isolation area and located on the area outside the device structure in the device area, and the device structure is located in the isolation structure; acquiring whether the second-layer structure and the first-layer structure have electrical failure or not; if the second-layer structure and the first-layer structure are in electrical failure, obtaining offset conditions of the second-layer structure and the first-layer structure in a first direction; and according to the offset condition of the second layer structure and the first layer structure in the first direction, carrying out laser annealing treatment on the wafer to enable the second layer structure and the first layer structure to recover electrical connection. According to the method, the stress condition of the semiconductor structure is improved.

A method of starting an implantable blood pump including a first stator and a second stator includes detecting an electrical fault in one of a group consisting of the first stator and the second stator and initiating starting of the first stator and the second stator in response to the electrical fault.

The utility model discloses a novel socket, which relates to the technical field of electrical equipment and comprises a socket body, wiring holes, hangers, a socket unit, a switch unit and a functional unit, a plurality of jacks are arranged on the front surface of the socket body, the wiring holes can be arranged on the left wall, the right wall, the upper wall, the lower wall and the rear wall of the socket body, and the functional unit is arranged in the socket body. According to the utility model, through integration of a plurality of plug standards, use requirements of electrical equipment in different countries and regions can be satisfied, versatility and applicability of the socket are greatly improved, and the switch unit and the function unit are arranged, so that different modules can be selected according to function requirements. The power supply requirements of various equipment products are met, the air switch provides a convenient power supply control means for a user, especially when the electrical equipment is abnormal or the user needs to quickly cut off power, the power supply can be quickly cut off, and safety accidents caused by faults of the electrical equipment are more effectively avoided.

The invention discloses a knowledge graph construction method and system based on electrical fault disaster, and belongs to the technical field of electrical fire early warning and intelligent security and protection. The method comprises the following steps: constructing an electrical fault disaster-causing multi-source data acquisition system, dynamically adjusting an acquisition strategy based on a safety threshold, and establishing an electrical fire disaster-causing link relationship library; identifying a specific entity relation mode of the electrical fault through a corpus special for the electrical field and a field word embedding technology; establishing a knowledge graph with dynamic evolution capability, and solving entity attribute conflicts based on credibility weighted fusion by adopting an incremental updating mechanism and partition life cycle management; and constructing an electrical fire situation perception model, carrying out early warning threshold adaptive optimization, and generating an analysis report containing technical responsibility and management responsibility through a multi-order disaster-inducing factor backtracking mechanism. Full-chain closed-loop management of electrical fire risks from perception and cognition to decision making is achieved, and the accuracy and tracing depth of fire early warning in a complex environment are remarkably improved.

The application provides a semiconductor device and a manufacturing method thereof. The manufacturing method comprises: forming a semiconductor structure, the semiconductor structure comprising a substrate, a stack structure in a first direction of the substrate, a sacrificial layer between the substrate and the stack structure, and a channel structure extending through the stack structure and into the substrate, the channel structure comprising a functional layer, a channel layer, and an insulating layer, and the channel structure having a gap in the insulating layer at an end of the channel structure close to the sacrificial layer; removing the substrate; removing at least part of the sacrificial layer to expose the gap at the end of the channel structure; and forming an insulating filling block in the gap. By forming the insulating filling block in the gap, the material of a semiconductor layer formed subsequently can be prevented from entering the gap, thereby avoiding electrical interference and causing electrical failure of the device, and improving the yield and reliability of the device.

The utility model relates to the technical field of junction boxes, in particular to an electrical equipment modularized junction box capable of being quickly assembled and disassembled without tools, which comprises an electrical equipment body, a plurality of junction boxes are arranged in the electrical equipment body, and a pair of quick assembly and disassembly assemblies is symmetrically arranged on the upper side and the lower side of each junction box. And a wiring assembly is arranged in each junction box. According to the utility model, tool-free rapid mounting and dismounting between the junction box and the electrical equipment body are realized through arrangement of the rapid dismounting assembly, the junction box can be automatically clamped with the clamping seat in the electrical equipment body during mounting through cooperative use of the arc-shaped clamping block I, the arc-shaped clamping block II and the spring, additional tool assistance is not needed, and the working efficiency is improved. The mounting efficiency is greatly improved; according to the utility model, through the arrangement of the wiring assembly, stable electrical connection between the wire and the copper sheet on the wire holder is ensured, and electrical faults caused by loosening or falling of the wire are effectively prevented.

The invention discloses a circuit board and a test interface board for electrical failure analysis of a chip, and the circuit board comprises a slide rail disposed on the surface of the circuit board, and the slide rail is provided with a movable slot in a sliding manner; the fixed slot is arranged on the surface of the circuit board, the fixed slot is opposite to the movable slot, the fixed slot and the movable slot are respectively used for being inserted into one of a group of opposite sides of the plugboard and being electrically connected with the inserted side, and the group of opposite sides of the plugboard are also used for being electrically connected with a chip placed on the plugboard; and the conductive through hole is arranged on the circuit board and is electrically connected with one of the movable slot and the fixed slot. According to the invention, the test efficiency and the test precision can be improved and the test cost can be reduced in the chip electrical failure analysis process.

The utility model discloses a fast installation cable fixing device, which comprises a base and an upper cover, the base is clamped on a cable support and is fixedly connected with the cable support through a first bolt, the base is detachably connected with the upper cover, the base is provided with a first groove, the upper cover is correspondingly provided with a second groove, and the first groove and the second groove are fixedly connected. The first groove and the second groove are enclosed to form an accommodating space for a cable to pass through, and a clamping assembly for fixing the cable in the accommodating space is arranged in the second groove. According to the utility model, the base and the cable bracket are clamped through the through groove and then are fastened and connected through the first bolt, so that the installation is simple and convenient, time and labor are saved, the cable bracket does not need to be punched, and a cable protection layer is prevented from being scratched by burrs; the cable is completely fixed and clamped through the combined action of the lining and the clamping sleeve, and the clamping sleeve and the lining are both made of high polymer materials with certain hardness, so that the damage to cable fixation is greatly reduced, and the risk of electrical faults is reduced.

The invention relates to a semiconductor structure preparation method and a semiconductor structure, and relates to the technical field of integrated circuits, and the method comprises the steps: providing a substrate of which the top surface is covered with a first lamination; after at least one through hole penetrating through the first lamination layer is formed, a first conductive structure with the top surface lower than the top surface of the dielectric lamination layer is formed in the through hole, and part of the dielectric lamination layer is transversely etched and removed to obtain a groove exposing the whole top surface of the first conductive structure; after the first sacrificial layer is removed, a second barrier layer at least covering the side wall of the groove is formed; after the groove is filled with a second sacrificial layer, forming a second lamination layer covering the second sacrificial layer; a T-shaped groove which penetrates through the second lamination layer and is narrow in bottom and wide in top is formed; after the second sacrificial layer is removed, a target groove is obtained; and after a third barrier layer covering the inner surface of the target groove is formed, a target conductive structure is formed in the target groove. At least the problem of electrical failure caused by metal atom migration can be prevented.

Systems and methods for improved power notification messages are disclosed. One disclosed system for improved malfunction notification messages includes a meter including metering, a processor, and a communications module. The metering measures a voltage associated with the grid and determines that a malfunction event has occurred based on detecting an out-of-range voltage associated with the grid for a predetermined number of cycles or a predetermined period of time. The processor determines a disturbance magnitude value associated with the malfunction event from the waveform data. The communications module communicates the malfunction notification message and the disturbance magnitude to a central system, where the disturbance magnitude value is a value representative of a probability that a fault causing the malfunction is located in an area of ​​the grid.

The invention belongs to the technical field of aircraft tests, and discloses a test verification method for simulating control surface oscillation monitoring caused by an electrical fault, based on a fly-by-wire flight control system with backup control, a refitted REU is used, a normal control instruction and a backup control instruction received by the refitted REU are superposed, and the control surface oscillation monitoring caused by the electrical fault is realized. Then the motion of the control surface is controlled according to the superposed instruction; connecting a signal generator with the refitted REU, wherein the signal generator outputs a signal with specified frequency and amplitude; a normal control instruction received by the refitted REU is superposed with a signal output control instruction of the signal generator to simulate control surface oscillation caused by an electrical fault in a servo loop. According to the wing control surface oscillation monitoring test method, the response of the tested airplane meets the design expectation, and a test basis is provided for ensuring the safety of an airplane system.

The application discloses a flexible screen high-frequency bending test failure screening system and method, which utilizes a high-frequency bending machine to test the flexible screen, measures the temperature of the bending area, and determines thermal failure if the surface temperature distribution, temperature rise rate or steady-state temperature exceeds a threshold value; if the temperature detection is qualified, the crack density and thermal stress of the bending area are detected after the temperature field is stabilized, and mechanical failure is determined if the threshold value is exceeded; if the mechanical detection is qualified, the resistance change rate and breakdown voltage of the bending area are detected after the temperature and stress fields are both stabilized, and electrical failure is determined if the threshold value is exceeded, otherwise, the product is qualified. The system comprises a system control module, a mechanical loading module, a temperature detection module, a crack detection module, a thermal stress detection module, an electrical signal detection module and a data processing module, the modules are linked, multi-stage detection is adopted, the reliability of the flexible screen under high-frequency bending conditions can be comprehensively evaluated, and unqualified products can be effectively screened out.

The utility model provides an insulating component, a battery pack and an electric device, the insulating component is used for the battery pack and comprises an insulating film and insulating oil; the insulating film is provided with a cavity, the cavity is filled with the insulating oil, and the insulating assembly is suitable for being arranged between a battery in the battery pack and a battery pack fixing structure or between adjacent batteries in the battery pack. Wherein the insulating film has relatively high resistivity and breakdown field strength, so that current can be prevented from passing through, and a circuit and electrical elements are protected from electric shock and overload. The insulating liquid also has excellent insulating property and pressure resistance, and meanwhile, the insulating liquid can seal internal gaps after the battery pack has an electrical fault, so that electrolyte or combustible gas is prevented from flowing inwards. Therefore, the insulating component formed by the insulating film and the insulating liquid has good electrical insulating property, so that the arc breakdown resistance of the battery pack can be improved, the arcing and firing phenomena generated when the battery pack encounters an electrical fault are avoided, and the electricity utilization safety of the battery pack is improved.

The utility model relates to the field of distribution boxes, in particular to a distribution box capable of quickly connecting a zero wire and a ground wire. In the wire installation process, workers cannot guarantee the strength sometimes, too large force may cause damage or deformation or even breakage of a wire, so that the wiring quality is reduced, the risk of electrical faults is increased, the wire may not be fully clamped due to insufficient force, poor contact is caused, and potential safety hazards such as heating, sparks and the like at an electrical connection position are caused. Comprising a main box body, a fixed transverse plate is fixedly connected into the main box body, two clamping mechanisms are arranged on the side face of the fixed transverse plate, each clamping mechanism comprises a mounting base, L-shaped plates are fixedly connected to the two sides of each mounting base, through holes are formed in the L-shaped plates, and bolts are rotationally connected into the through holes formed in the L-shaped plates. An electric wire can be clamped through the clamping mechanism, and an arc-shaped groove formed in the bottom of a horizontal sliding groove in the mounting base is matched with a corresponding arc-shaped protrusion formed in the lower end of a clamping block.

The utility model discloses a mechanical device for preventing a steel wire rope of a single winding drum of a crane from disengaging from a groove, which comprises a mounting frame and a roller, the mounting frame is positioned on one side of the single winding drum of the crane, and the roller is detachably and rotatably connected onto the mounting frame. The axis of the roller is parallel to the axis of the single winding drum and flush with the wire outlet end of a steel wire rope on the single winding drum, and the distance between the roller and the steel wire rope is smaller than the depth of a rope groove in the single winding drum. The installation frame and the roller are arranged on one side of the single winding drum, the wire outlet end of the steel wire rope is limited through the roller, and the steel wire rope can be prevented from disengaging from a groove; the whole device is light in structure and convenient to install; by utilizing the rolling friction principle of the roller, the hidden danger of rope clamping in the construction process of the steel wire rope is avoided; a synchronous electrical structure is saved, and potential safety hazards of electrical faults are eliminated; therefore, the practical use requirements of lightness, low cost and reliability are met.

The invention discloses a connector adapter assembly unlocked by using a tool, and relates to the technical field of connectors, primary locking between a wire end shell and a socket shell is realized through stop matching of a cantilever beam elastic structure and a clamping point structure, a CPA is arranged on the cantilever beam elastic structure, and the clamping point structure is arranged on the clamping point structure. The two-stage locking between the wire end shell and the socket shell is realized by utilizing the blocking matching of the CPA retaining clamping point structure and the cantilever beam elastic structure, the locking reliability of the connector is greatly improved by the two-stage locking, and the unlocking stop block is arranged on the CPA, so that the unlocking stop block can be locked in the unlocking process. A force is applied to the unlocking stop block by using a tool so that the CPA displaces, the CPA does not apply a pressure to the cantilever beam elastic structure any more, the CPA can be unlocked by using the tool, the unlocking process is more standard by using the tool to unlock the CPA, the problems of electric arc, short circuit and the like caused by hot plugging are completely eradicated, the electrical fault risk is reduced, and the service life of the CPA is prolonged. The technical problem that manual unlocking is adopted in an existing connector, and the safety of a manual unlocking connector is low is solved.

The utility model provides a connector, which relates to the field of electrical components and comprises a shell mechanism and a connecting component. The shell mechanism comprises an insulating shell, the front end of the insulating shell in the inserting direction is provided with an inserting position, the rear end of the insulating shell is provided with a mounting part, the mounting part is provided with an internal space, two opposite inner side faces are provided with limiting assemblies, and a limiting frame is located in front of the limiting assemblies; the connecting assembly is arranged in the shell mechanism and comprises an electrical connecting block, a first stainless steel terminal, a second stainless steel terminal and a plug-in assembly, the front end of the plug-in assembly is exposed at the plug-in position, the second stainless steel terminal is connected with the rear end of the plug-in assembly, the front end of the electrical connecting block is connected with the rear end of the plug-in assembly, and the first stainless steel terminal is connected with the first stainless steel terminal. The first stainless steel terminal is connected with the electrical connection block and is clamped by the limiting assembly, and the second stainless steel terminal is limited by the limiting frame. According to the utility model, the stability of the electrical connection block in the stabilizing groove is increased, and the risk of signal loss and electrical failure is reduced.

The utility model provides a kind of calibration device for electrostatic tester, it is related to electrostatic tester calibration device technical field, comprising: shell, shell inside is equipped with installation cavity, installation cavity inside is equipped with fixed shell, fixed shell inside is fixedly installed with calibration device main body, calibration device main body one side is fixedly installed with protective housing;Protection assembly between shell and protective housing is equipped with;Protection board, pull block, spring b and clamping block are included.The kind of calibration device is set through protection assembly, dust can be blocked to enter test jack inside, reduce the risk of contact failure or other electrical failure caused by pollution, maintain the best working condition of equipment, and through the setting of buffer assembly, when equipment accidentally falls or is impacted, reduce the force directly acting on calibration device, to effectively prevent the damage of internal precision components.