1912 results about "Electrical element" patented technology

The invention discloses an unstructured file identification method based on primitive identification, and the method comprises the following steps: (1) preprocessing: cutting and zooming an electrical wiring drawing to a required size, and carrying out the gray processing; (2) primitive recognition: constructing a feature extraction network of an electrical primitive detection model by adopting a YOLO electrical primitive detection algorithm fused with an attention mechanism; (3) character recognition, which comprises the following steps: removing primitives, detecting an annotated text area, constructing a text candidate box, segmenting and adjusting an annotated text boundary, recognizing annotated text content, and filtering an electrical text recognition result; and (4) electrical element association relationship analysis, which comprises the following steps: frame element extraction, primitive group region division, template matching and electrical primitive-annotation text association. According to the method, the primitives and characters of the electrical wiring diagram can be obtained, the problem that different fonts and styles appear in marked characters can be solved, and semantic information can be understood.

A smart busy board is provided utilizing a technology driven timer which can be set to predetermined time intervals for each of a plurality of interactive components disposed on the smart busy board. The timer mechanism and some of the interactive components are connected to electrical elements hidden within the interior housing of the smart busy board. Each of the interactive components engage the infant or toddler with some type of sensory output, such as movement, sound, light, and touch for a predetermined time interval. The busy board is designed to stimulate frontal lobe and cognitive development and improve motor skills.

An inspection method according to one aspect of the present disclosure is for inspecting a wiring board P by applying an inspection voltage or an inspection current to an inspection target X. The inspection target X is a part of the wiring board P that comprises an insulator and a conductor and on which an electric component is mounted. The inspection target is subject to a plurality of inspections, and the inspections include a first inspection for inspecting the conduction state of the conductor or the insulator, and a second inspection for inspecting time-series data of the conductive state of the conductor or the insulator. The result of the first inspection and the result of the second inspection are recorded in a recording device. A third inspection is further included, which is carried out after the first inspection and the second inspection, in a state where processing is performed and an electric component is mounted in a subsequent process. The result of the third inspection is recorded in association with the result of the first inspection and the result of the second inspection.

The invention relates to the technical field of transformer heat dissipation, in particular to an oil cooling radiator for a transformer, which comprises a shell, an oil conservator, a telescopic driving piece, cooling fins and the like, electrical elements are arranged in the shell; an oil conservator used for stabilizing the oil pressure in the shell is arranged on the shell; the oil conservator is communicated with the interior of the shell; a plurality of telescopic driving pieces are arranged on the shell; the telescopic ends of every two telescopic driving pieces which are opposite in the front-back direction are jointly and fixedly connected with a plurality of cooling fins used for conducting heat dissipation on insulating oil. The cooling fins are made of heat conduction materials. And each radiating fin is of a hollow structure. The oil leakage part of the welding seam of the cooling fin is blocked through the rubber scraping strip and the blocking plate, insulating oil is prevented from continuously leaking, the insulation performance of electrical components in the transformer is prevented from being reduced, faults such as short circuit and discharge caused by insufficient insulation strength are reduced, and meanwhile it is avoided that follow-up maintenance work is affected by insulating oil leakage.

The invention provides a circuit breaker, and relates to the technical field of electrical equipment. The circuit breaker comprises a moving contact, a static contact, a first connecting conductor and a second connecting conductor, the first connecting conductor comprises a first connecting section, a flexible connecting section and a second connecting section which are connected in sequence, the first connecting section is used for being fixedly arranged on an installation shell and used for being connected with an external electrical element, and the second connecting section is connected with the moving contact. The moving contact moves synchronously along with the moving contact; the static contact is connected with the second connecting conductor; under the condition that the moving contact and the static contact are switched on, the first connecting section, the flexible connecting section, the second connecting section, the moving contact, the static contact and the second connecting conductor form a conductive loop, and the current direction of the first connecting section is opposite to that of the second connecting section and is the same as that of the second connecting conductor. The purpose of enhancing the contact pressure of the contact by using the electromagnetic force generated by the current in the closing state is achieved, so that the short-time tolerance performance and the operation reliability of the circuit breaker are improved.

The utility model discloses a cabinet electrical element heat radiation structure and a water and electricity separated electrical cabinet, a cabinet body of the cabinet is provided with a first area and a second area which are separated by a first separator plate, and the first area is in a closed state; the first area is provided with a heat conduction piece, and the electrical element needing heat dissipation is attached to the heat conduction piece. The second area is provided with a radiator for radiating heat through circular flow of a cooling medium; the heat conduction piece extends towards the second area and penetrates through the first partition plate, and the part, extending to the second area, of the heat conduction piece extends into the cooling medium of the radiator. The heat dissipation structure can solve the problem that normal use of electrical elements in the cabinet is affected by liquid leakage when a liquid cooling radiator is adopted.

The invention discloses an automatic multi-channel solid-state relay testing device, and belongs to the technical field of electrical element detection and intelligent manufacturing testing. The device comprises an insulation and voltage resistance test module, a direct current function test module, an alternating current function test module, an automatic load test module and an MES execution management module. The device has the advantages of complete testing functions, high precision, high automation degree, wide adaptation range and the like, and is suitable for delivery inspection and life verification of various solid-state relays.

The invention relates to the field of intelligent distribution boxes, and discloses a modularized intelligent distribution box based on liquid cooling circulation, which comprises a box body and electrical elements arranged in the box body, and a liquid cooling piece is arranged in the box body; the liquid cooling piece is communicated with a circulating liquid supply mechanism buried underground; the box body is provided with a scraping mechanism for scraping liquid from the liquid-cooled part, and the liquid scraped by the scraping mechanism is discharged out of the box body; the scraping mechanism comprises a magnetic ring, and the magnetic ring magnetically acts on liquid in the liquid cooling part; a rotational flow piece which moves along with the movement of the magnetic ring is arranged in the liquid cooling piece, and the rotational flow piece moves along with the movement to scrape the inner wall of the liquid cooling piece. Condensate water on the surface of the heat exchange pipe is removed through the scraping mechanism, and the humidity in the box is controlled through inclined design of the shunting box and the collecting box, guide of the protection plate and the discharge port, so that heat exchange efficiency reduction and electric appliance insulation risks are avoided; the external scraping shell and the internal rotational flow piece are linked through the magnetic ring, the inside and outside of the pipe are synchronously cleaned, a magnetic field changes mineral crystal forms to reduce scale, turbulence scouring keeps clean, and the heat exchange effect is maintained.

The invention relates to the technical field of manufacturing of electrical element assemblies, and discloses a cold and heat exchange system of a liquid cooling cabinet and a use method of the cold and heat exchange system. The cold and heat exchange method of the liquid cooling cabinet comprises the steps that a complex thermodynamic model of the liquid cooling cabinet is processed through a hierarchical model distillation algorithm, and an ultra-lightweight thermodynamic digital twin model is obtained; processing the operation state of the liquid cooling cabinet through a multi-mode micro-sensor network to obtain a lightweight environment and load feature vector; processing the lightweight environment and load feature vector and the ultra-lightweight thermodynamic digital twin model through a micro predictive controller to obtain an adaptive liquid cooling control strategy; processing the self-adaptive liquid cooling control strategy through an ultra-low power consumption execution unit to obtain an accurately executed physical cooling effect; according to the invention, through an optimization algorithm, efficient control of the liquid cooling cabinet system is realized in a resource limited environment, the precision, the response speed and the energy efficiency are improved, the environmental adaptability and reliability are enhanced, and the bottleneck of a traditional system is broken through.

The invention belongs to the technical field of cable branch boxes, and discloses a moistureproof dehumidification branch box used in the field, which comprises a box body, a waterproof platform is fixedly connected to the bottom of the box body, a box door is hinged to the side wall of the box body, mounting frames are fixedly connected to the inner cavity of the box body in the transverse direction and the vertical direction, a canopy is arranged above the box body, and the inner cavity of the box body is fixedly connected with the mounting frames in the transverse direction and the vertical direction. Through cooperation of structures such as a T-shaped pipe, a cross-shaped pipe and a gas collecting pipe, the freezing phenomenon is avoided, it is ensured that the dehumidification and heat dissipation functions are stable, a double-pipeline channel is arranged, the T-shaped pipe and the cross-shaped pipe form a heat path pipeline which is installed near an electrical element to suck hot air of one hand, and the gas collecting pipe and a second gas inlet which is obliquely arranged form a cold path pipeline, so that the heat dissipation function of the electrical element is improved. Air in the bottom area, with the highest humidity, of the box wall is sucked, the T-shaped pipe and the cross-shaped pipe are driven by field natural wind power to move up and down in a reciprocating mode, the cold air suction range and the hot air suction range are widened, finally condensation is generated in a concentrated mode, liquid water is discharged, and efficient dehumidification is achieved.

The invention relates to the field of power equipment, in particular to a metering box which comprises a box body and a heat dissipation device, the box body is provided with an installation cavity for installation of electrical elements, the heat dissipation device comprises a reciprocating screw rod, a heat dissipation base and a heat dissipation fan, and the reciprocating screw rod is rotatably connected to the inner wall of the installation cavity. The axis of the reciprocating screw rod is parallel to the height direction of the box body, the heat dissipation seat is in threaded connection with the outer wall of the reciprocating screw rod, the heat dissipation seat slides on the inner wall of the mounting cavity along the axis of the reciprocating screw rod, and the heat dissipation fan is connected to the surface, facing the electrical element, of the heat dissipation seat. Through arrangement of the reciprocating screw rod, the heat dissipation fan and the heat dissipation seat, uniform cooling of the electrical elements in the mounting cavity is realized, the purpose of rapid cooling is effectively realized, the electrical elements in the metering box are not liable to be in a high-temperature state and are not liable to be consumed, and thus the accuracy of metering the electric quantity by the metering box is improved.

Device comprising at least a top-side hood (10) for receiving an electrical component, such as a terminal block, for attaching at least one electrical conductor, and a bottom-side base (14) which is provided with a bottom-side opening (16) for receiving another electrical component, such as an insulating candle, which can be electrically connected to the first electrical component, characterized in that the hood (10) and the base (14) are two separable components which, when assembled, form a cover (18) as a whole and which, by means of a height adjustment (20) with a locking device, assume such different positions relative to each other that differently designed electrical components in a predefinable mounting frame can be covered with only one cover (18).

A kitchen appliance is disclosed includes a first electrical component, a second electrical component, and a wireless power receiver system. The wireless power receiver system includes a first receiver antenna configured to couple with a first transmission antenna and receive virtual AC power signals from the first transmission antenna. A second receiver antenna is configured to couple with a second transmission antenna and receive virtual DC power signals from the second transmitter antenna. A first receiver power conditioning system is configured to receive the virtual AC power signals, convert the virtual AC power signals to AC received power signals, and provide the AC received power signals to power the first electrical component. The second receiver power conditioning system configured to receive the virtual DC power signals, convert the virtual DC power signals to DC received power signals, and provide the DC received power signals to power the second electrical component.

The invention relates to the technical field of industrial monitoring and intelligent fault diagnosis. The invention provides a fault monitoring method and system for electrical elements of a mixing station. The method comprises the following steps: collecting operation signals of electrical elements of the mixing station; performing signal anti-interference processing based on the operation signal to obtain a preprocessed signal; according to the pre-processing signal, fault characteristic parameters of electrical elements of the mixing station are extracted, and the fault characteristic parameters comprise voltage reduction starting conversion logic characteristics of a contactor and overload transient characteristics of a motor; based on the fault characteristic parameters, fault trend analysis is carried out, and element performance degradation trend and potential fault risk are identified; and according to a result of the fault trend analysis, generating a multi-stage early warning signal for triggering preventive maintenance operation. The problems of failure of fault feature extraction, signal distortion and lack of potential risk early warning caused by insufficient pertinence, weak anti-interference capability and low intelligent degree of an existing mixing station electrical element monitoring technology are solved.

The invention belongs to the technical field of electrical system loops, and relates to a system loop matching design method and device, computer equipment and a storage medium, and the method comprises the steps: obtaining load parameters in a system loop; calculating a load current according to the load parameter; according to a load current, selecting a fuse, defining a temperature resistance grade, and selecting a cable diameter; according to the selected fuse, the defined temperature resistance grade and the selected cable diameter, performing overcurrent matching checking, judging whether the overcurrent matching checking is passed or not, and if yes, performing temperature rise checking; judging whether the temperature rise checking is passed or not, and if so, checking the fuming time; and judging whether the verification of the fuming time is passed or not, and if so, carrying out electrical performance test confirmation. Multiple aspects such as electrical element performance, environmental factors and frequency factors are comprehensively considered, and the accuracy and reliability of the high-voltage system in the design process are ensured; failure risks can be effectively avoided, the safety and stability of the system are improved, and powerful support is provided for electric development of automobiles.

The utility model discloses a controller, which is characterized in that the controller comprises a shell, the shell is provided with a bottom surface and a side wall arranged around the bottom surface, and the inner side of the shell further comprises a boss; the circuit board is located in the shell, the first surface of the circuit board is opposite to the bottom surface of the shell, and the second surface of the circuit board is provided with an electrical element; the protective layer is filled in the shell and covers the second surface of the circuit board; wherein the bottom surface of the shell is provided with a radiator facing the circuit board, and the radiator corresponds to a heating electrical element on the circuit board; the second surface of the circuit board is lower than the upper end face of the side wall. According to the scheme, the size of the controller is remarkably reduced, the occupied size of a compressor bin can be saved, space is vacated for a radiator, an air inlet pipeline and an air outlet pipeline, and the volume of the refrigerator is increased by reducing the size of the controller under the same size.

The invention relates to a positioning navigation method based on multi-sensor fusion, which is applied to the field of robot navigation, adopts a positioning mapping method of visual inertial navigation and laser radar fusion, provides a laser radar matching and grid map construction model, and realizes accurate switching of laser radars when a visual inertial navigation module is offline in a weak light environment. According to the method, accurate positioning and navigation tasks are achieved in a complex environment, meanwhile, during map construction, through illumination non-deformation processing, it can be effectively guaranteed that features extracted from the image are kept consistent no matter how the illumination condition changes, then the stability and performance of target detection in the low-light environment are improved, and the method is suitable for large-scale popularization and application. Therefore, the accuracy of map construction is effectively ensured, obstacles are not easy to appear in the planned path, the phenomenon that the transfer robot collides with the obstacles when the transfer robot transfers the GIS equipment is not easy to occur, and the distribution of the electrical elements in the GIS equipment is not easy to loosen or change in position in the transfer process.

Electrical installations and methods for their installation and use. Such an installation includes an electrical box, an electrical distribution unit associated with the box, an electrical component (for example, an outlet, switch, light bulb, or connected wiring), and an electrical connector for coupling wires to the electrical distribution unit through a wall of the box. The electrical distribution unit allows the wires to be electrically coupled with connectors of the electrical distribution unit and the electrical component to engage the connectors within the box. The installation and its box are intended to provide the same or similar functionality as existing electrical boxes for outlets, switches, and junction boxes while eliminating the requirement to route electrical wires through and into the interior of the box itself, as such wires are replaced by the electrical distribution unit into which the wires and electrical component are plugged.

The invention relates to the technical field of power distribution equipment, and discloses heat-dissipation power distribution control equipment, which comprises a bottom frame, an electrical element body and a cabinet body fixedly mounted at the top of the bottom frame, a top plate is fixedly mounted at the top of the cabinet body, an exhaust box is fixedly mounted at the top of the top plate, and a guide assembly is arranged on one side of the front surface in the cabinet body. The guiding assembly comprises vertical plates fixedly installed on the two sides of the inner bottom face of the cabinet body, guiding plates are installed on the sides, close to each other, of the two side rods, the guiding plates can be sequentially ejected outwards in a stepped mode for guiding through the guiding assembly, and the ejection inclination angle can be adjusted according to the protruding position of an electrical element body. Therefore, the situation that heat is still accumulated at the blocking position of the electrical element body when air is evenly distributed through an air deflector in the prior art is reduced, the air body can be conveniently blown to the vertical side face of the electrical element body during air guiding, the contact area of the air body and the electrical element body is increased, and the contact time of the air body and the electrical element body is prolonged.

The invention provides a component fault prediction method and system based on extreme weather, and the method comprises the steps: obtaining an extreme weather data set and an electrical component operation state data set, carrying out the feature extraction of the extreme weather data set, obtaining an extreme weather feature set, carrying out the feature extraction of the electrical component operation state data set, and obtaining an extreme weather feature set; obtaining an electrical element operation characteristic set; performing association fusion on the extreme weather feature set and the electrical element operation feature set to generate an association feature sequence; calling a pre-trained fault prediction model to perform fault risk prediction on the associated feature sequence, and generating a fault probability distribution sequence of the electrical element; according to the fault probability distribution sequence, fault prediction results of the electrical element under different extreme weather conditions are determined, the adaptability of the prediction results to actual application scenes is improved, and thus the reliability and effectiveness of fault prediction of the electrical element are integrally improved.

The invention discloses a transformer substation secondary system modeling method and related equipment, and relates to the field of power system modeling.The method comprises the steps that firstly, feature information, hierarchical relations and connection relations of electrical elements are extracted from a transformer substation secondary system configuration file, and the system structure is comprehensively mastered; generating a historical information time sequence in combination with historical information of the transformer substation; then respectively mining a time influence factor and a space influence factor by using a long short-term memory network and a multiple regression model; and finally, establishing a global simulation model based on a digital twinning technology. According to the scheme, equipment operation data is deeply mined, and the data integration problem is solved; the space-time dimension is fully considered, and the equipment state is accurately simulated; information delay is reduced by means of a real-time data mechanism, and virtual-real synchronization is guaranteed; model lightweight and compatibility are achieved, and the multi-scene requirement is met. Therefore, active operation and maintenance decision is achieved, and the operation and maintenance efficiency and safety of the substation are remarkably improved.

The invention provides a protection method and a protection system for relay adhesion of a battery pack and a vehicle. The protection method comprises the following steps: detecting whether a relay is adhered or not, and generating adhesion fault information under the condition that the relay is adhered; closing and opening the relay for a preset number of times at a preset time interval based on the adhesion fault information, and generating an alarm signal; and detecting whether the relay is de-adhered, and generating de-adhesion information. According to the invention, after the relay is detected to be adhered, the adhesion removing operation is executed by closing and opening the relay for many times, so that the adhesion state can be removed in time, continuous power supply caused by adhesion of the relay is avoided, and potential damage to other electrical elements and / or personnel is reduced.

The invention provides a battery distribution box, a battery and a power utilization device, and belongs to the field of batteries. The battery distribution box provided by the invention comprises a shell, an electrical assembly and a heat dissipation cover plate, an accommodating cavity with an opening is formed in the shell; the electrical assembly is arranged in the accommodating cavity and comprises a plurality of electrical elements and conductive connecting pieces connected with the electrical elements; the heat dissipation cover plate is connected with the shell to cover the opening, and at least part of the conductive connecting piece makes contact with the heat dissipation cover plate to achieve heat conduction. The conductive connecting piece is in contact with the heat dissipation cover plate, so that the connection mode of the conductive connecting piece and the cover plate with the heat dissipation function can be simplified, the extension length of the conductive connecting piece is saved, and the space utilization rate of the battery distribution box is improved.

The utility model provides a ventilation liquid-cooled energy storage convergence device, comprising an energy storage convergence box provided with an electrical cabin; the temperature detection module is installed in the electrical cabin of the energy storage combiner box; the temperature adjusting module is provided with a liquid cooling machine body, a conveying pipeline and a heat exchange device, the liquid cooling machine body communicates with the heat exchange device through the conveying pipeline, and the heat exchange device is installed in the electrical bin; the BMS control module, the temperature detection module, the liquid cooling machine body and the heat exchange device are electrically connected with the BMS control module; and the BMS control module can start the heat exchange device according to a temperature signal monitored by the temperature detection module, so that the heat exchange medium supplied to the heat exchange device by the liquid cooling machine body exchanges heat with the gas in the electrical cabin. In addition, the utility model further discloses an energy storage system using the ventilation liquid-cooled energy storage convergence device, the temperature adjustment of an electrical bin in an energy storage convergence box can be realized, and the problem that the electrical performance is influenced due to the fact that the temperature of an electrical element is too high or too low is effectively avoided.

A means of transport (10) and a method for supplying an on-board power supply system (1) of a means of transport (10) are proposed. The method comprises the following steps: detecting an undervoltage situation in the on-board power supply system (1), receiving external electrical energy via a USB cable (2) of the means of transport (10) connected to the on-board power supply system (1) of the means of transport (10), and automatically deactivating a first group of electrical components (3a, 3b, 3c) of the means of transport (10).

The invention relates to an immersion case for a liquid cooling arrangement of a datacenter server rack, comprising a plurality of electric components, some of them generating heat when is use, called heat-generating components, the immersion case comprising a housing provided with a bottom and a longitudinal wall, delimiting an internal volume (V), and at least one heat-generating component arranged in the internal volume of the housing, the immersion case further comprising heat-transfer liquid wherein said heat-generating component is at least partially submerged, wherein the immersion case comprises at least one acoustic wave generator (200), called vibrations element, configured to generate a field of vibrations of the heat-transfer liquid in the internal volume of the housing, called vibrations area.

The invention relates to the related technical field of electrical element assembly manufacturing, in particular to a positioning anti-deviation chip mounter and a chip mounter method.The positioning anti-deviation chip mounter comprises a cabinet body, a feeding module and a component transferring module used for transferring components on the feeding module to the position of a PCB bonding pad, and the component transferring module comprises an assembling plate movably arranged in the cabinet body; the assembly plate can be driven by two groups of power mechanisms in the cabinet body, a movable seat is slidably arranged on the assembly plate, and the bottom of the movable seat is connected with a suction nozzle through a negative pressure pipeline; the cylinder is arranged, the multiple limiting grooves with different lengths are formed in the cylinder, and the protruding columns correspond to the limiting grooves with the appropriate lengths before the component is released, so that the downward movement forming amount of the suction nozzle is accurately controlled, and the negative pressure state in the negative pressure pipeline is relieved through the change of the position relation between the first conduction groove and the second conduction groove; and the problems that the component is released unstably and deviates due to sudden release of the component are avoided.