51 results about "Electrical Failure" patented technology

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.

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 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.

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 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.

The application discloses a high-voltage bushing state diagnosis method and system, relates to the technical field of high-voltage bushing state diagnosis, and aims to solve the technical problem of low accuracy of the existing diagnosis method in high-voltage bushing state diagnosis.The high-voltage bushing state diagnosis method comprises the following steps: obtaining a visible light image and a thermal image of a high-voltage bushing; performing feature fusion on the visible light image and the thermal image to obtain a fused image; extracting feature data in the fused image by using a scale-invariant feature transform; inputting the feature data into a probability neural network optimized by using a salp swarm algorithm; and outputting a high-voltage bushing state diagnosis result represented by the fused image by the probability neural network.The diagnosis result comprises normal, mechanical failure and electrical failure.The technical scheme of the application is used for providing a high-voltage bushing state diagnosis method and system.

The invention discloses a flexible screen high-frequency bending test failure screening system and method.The method comprises the steps that a high-frequency bending machine is used for testing a flexible screen, the temperature of a bending area is measured, and if the surface temperature distribution or the temperature rise rate or the steady-state temperature exceeds a threshold value, it is judged that thermal failure occurs; if the temperature detection is qualified, after the temperature field is stable, detecting the crack density and the thermal stress of the bending area, and if the crack density and the thermal stress exceed a threshold value, judging that mechanical failure occurs; and if the mechanical detection is qualified and the temperature and the stress field are stable, detecting the resistance change rate and the breakdown voltage of the bending area, if the resistance change rate and the breakdown voltage exceed a threshold value, judging that electrical failure occurs, otherwise, judging that 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 electric signal detection module and a data processing module, all the modules are linked, multi-stage detection is adopted, the reliability of the flexible screen under the high-frequency bending condition can be comprehensively evaluated, and unqualified products can be effectively screened out.

The electromagnetic valve with the self-drainage function comprises a shell, a protective layer is fixedly arranged on the inner wall of the shell, a coil matched with the protective layer is arranged in the protective layer, an electrified wire electrically connected with the coil is fixedly arranged on the coil, and at least part of the electrified wire extends out of the shell. A containing cavity is further formed in the shell, a static armature fixedly arranged on the shell is arranged in the containing cavity, and a movable iron core capable of moving upwards relative to the static iron core is arranged on one side of the static iron core. A drain hole is further formed in the outer circumferential face of the shell and located in the side, away from the power-on wire, of the static iron core. The beneficial effects of the utility model are mainly reflected in that the design of the drain hole can timely drain the condensate water in the shell, thereby avoiding the accumulation of the condensate water, avoiding the occurrence of electrical short circuit, open circuit or corrosion and clamping stagnation of internal parts and the like, improving the safety and prolonging the service life. And meanwhile, the coil is separated by the protective layer, so that the condition of electrical failure of the coil caused by condensate water can be avoided, and the service life is further prolonged.

The application relates to a construction method of a PT fuse failure diagnosis model under a plateau environment, and relates to the field of intelligent power distribution systems, which comprises the following steps: establishing and training an electrical fault diagnosis submodel, an environment fault diagnosis submodel and a state fault diagnosis submodel; acquiring structure information and operation environment information of a voltage transformer; generating a corresponding cascade strategy of the voltage transformer based on the structure information and the operation environment information of the voltage transformer; constructing a PT fuse failure diagnosis model based on the corresponding cascade strategy of the voltage transformer, the electrical fault diagnosis submodel, the environment fault diagnosis submodel and the state fault diagnosis submodel; collecting electrical parameters of the voltage transformer; collecting environment parameters of the voltage transformer; collecting a physical state of the voltage transformer; and determining a PT fuse failure cause based on the electrical parameters, the environment parameters and the physical state of the voltage transformer through the PT fuse failure diagnosis model, so that the PT fuse failure cause can be accurately analyzed.

The utility model discloses a connector with a novel structure. The connector comprises an insulating shell, a connecting groove, a limiting groove, a positioning block, a first clamping groove, a contact piece, a positioning piece, a connecting piece, a first convex block, a limiting block, a connecting plate, a positioning plate, a second clamping groove, a fixing hole, a positioning groove, a fixing seat, a fixing groove and a positioning column, a fixing groove is formed in the outer wall of the fixing seat, a positioning piece is arranged at the position, corresponding to the fixing groove, of the contact piece, and the positioning piece is clamped in the fixing groove; according to the utility model, a rapid assembly structure is designed, the assembly process can be rapidly and firmly completed through the clamping structure, the previous tedious installation steps are greatly simplified, the working efficiency is obviously improved, the disassembly and maintenance work of the connector is simplified, and the stability and safety of the connection of the connector are ensured; and due to the design of the clamping structure, all parts of the connector can be tightly attached, and the problem of electrical failure or signal distortion caused by looseness or dislocation is effectively avoided.

The invention relates to a ventilation and filtration system developed for the elimination of SF6 gas that may have harmful effects in a confined environment and the operating method of this system. The system includes an SF6 gas sensor, a SCADA / communication system, fan and filtration system, illuminated warning system. The system ensures that the safety systems are automatically activated if the concentration of SF6 gas in the environment reaches dangerous levels.

This application relates to an electrical data analysis method, apparatus, wafer-level testing equipment, and storage medium. The method includes: acquiring electrical test data of a test target; the data attributes of the electrical test data include structurally relevant attributes and test-related attributes of the test target; determining whether the electrical test data of the test target is faulty based on the structurally relevant attributes and a first judgment criterion, thereby identifying electrical failure data; classifying the electrical failure data according to the structurally relevant attributes, test-related attributes, and a second judgment criterion, thereby determining the failure mode corresponding to the electrical failure data; and determining the root cause of the test problem corresponding to the failure mode of the electrical failure data based on a preset relationship between failure modes and test problem classification. This method can improve testing efficiency.

The invention relates to the technical field of electrical early warning, in particular to an Internet of Things fire-fighting electrical early warning method and system, and the method comprises the following steps: collecting voltage, current and temperature data through a sensor, carrying out the data initialization and data quality evaluation, confirming the data continuity and integrity, analyzing the data reliability, and generating an initial performance evaluation result. According to the invention, through real-time analysis of the electrical data and dynamic adjustment of the early warning threshold, the sensitivity and response speed of the early warning system are improved, electrical faults and potential fire risks possibly caused by slow response are significantly reduced, abnormal data and normal data can be effectively distinguished, the accuracy of anomaly detection is improved, and the method is suitable for popularization and application. After electrical and environmental monitoring data are integrated, through multi-level feature extraction, the method adapts to environmental changes, can early warn potential fire risks, optimizes the overall safety of an electrical system, significantly reduces property loss, improves personal safety, continuously optimizes an early warning algorithm, and further improves early warning accuracy and efficiency.

The invention provides an interpretable machine learning-based power system transient stability evaluation method and system, and relates to the field of application of an artificial intelligence technology in a power system. By generating samples and selecting multi-dimensional data features, taking an improved LightGBM model as a core classifier and adopting Optuna hyper-parameter automatic optimization, a transient stability evaluation model is obtained and subjected to model training, interpretability analysis adopts a hybrid attribution analysis framework combining SHAP and LIME, the trained transient stability evaluation model is adopted, and the reliability of the transient stability evaluation model is improved. Electrical fault data of the fault power grid are obtained online for transient stability evaluation, and a final transient stability evaluation result is obtained; a high-quality data basis is provided for the model through systematic sample generation and feature engineering, the evaluation precision and speed are improved, the decision-making process is transparent through an SHAP and LIME mixed framework, the whole-process closed-loop management from offline preparation to online application to result analysis is realized, and the evaluation efficiency is improved. And the availability and reliability of the method in engineering practice are enhanced.

The utility model relates to the technical field of metallurgical equipment, in particular to a heat preservation cover device for a square billet waste removing rack roller way, which comprises a base support and a heat preservation cover capable of covering a waste removing roller way, a second connecting plate is fixed on the heat preservation cover, and a rotating plate is fixed at one end, far away from the heat preservation cover, of the second connecting plate. The rotating plate is rotationally connected with the base support, a third connecting plate is fixed to the rotating plate, a balancing weight is fixed to the end, away from the rotating plate, of the third connecting plate, a handle is fixed to the balancing weight, and a fixing piece for fixing the rotating plate and the base support is arranged on the base support. The utility model has the following effects: manual operation is convenient, the counterweight system reduces the force required for opening and closing, and the operation can be completed by a single person; power dependence is avoided, a pure mechanical structure is adopted, and the electrical fault risk is avoided.

The present disclosure provides a clamp and a method for locating failure points of a packaged particle, and belongs to the technical field of integrated circuit packaging. The clamp comprises a tray and a cover. The tray can have a plurality of adjusting members. The cover can have a plurality of locating points, which are uniformly arranged on the cover. When the cover cooperates with the tray, the failure points of the packaged particle are matched with one of the locating points on the cover by moving the adjusting members. In this way, the failure points required for analysis can be located on the surface of the packaged particle without damaging the surface of the packaged particle, and the electrical failure analysis of the failure points can be performed.

The application discloses a circuit board and a test interface board for chip electrical failure analysis. The circuit board comprises: a sliding rail arranged on the surface of the circuit board, wherein a movable slot is arranged on the sliding rail; a fixed slot arranged on the surface of the circuit board, wherein the fixed slot is opposite to the movable slot, and the fixed slot and the movable slot are respectively used for inserting one of a group of opposite edges of a plug-in board to electrically connect the inserted edge, and the group of opposite edges of the plug-in board is used for electrically connecting a chip on which the plug-in board is placed; and a conductive via hole arranged on the circuit board, wherein the conductive via hole is electrically connected with one of the movable slot and the fixed slot. The application can improve the test efficiency and test accuracy and reduce the test cost in the process of chip electrical failure analysis.

The application discloses a traction load harmonic deterioration category identification method and device, and relates to the field of electrical fault diagnosis of railway locomotives and vehicles. The method comprises the following steps: obtaining traction load harmonic deterioration data of a motor train unit; and obtaining the traction load harmonic deterioration category according to the traction load harmonic deterioration data and a pre-created harmonic deterioration category identification model, wherein the harmonic deterioration category identification model is pre-trained by traction load harmonic deterioration training data that has passed effectiveness verification. Before training the harmonic deterioration category identification model, the application pre-verified the effectiveness of the traction load harmonic deterioration original data used for training the model, ensured the effectiveness of the training data, and thus improved the accuracy of harmonic category identification using the harmonic deterioration identification model and reduced the consumption of manpower and resources.