1216 results about "Electrical installation" patented technology

The invention belongs to the technical field of electrochemical energy storage, and provides an immersed energy storage system and a thermal management method thereof, the immersed energy storage system comprises a sealed cabin, a battery module, an immersion liquid, a liquid cooling unit, a cooling liquid, a liquid cooling pipeline, a temperature sensor, an electrical device and a thermal management controller; the non-conductive immersion liquid with the conductivity smaller than 10 <-6 > S / m and the flash point larger than 200 DEG C is adopted to completely wrap the battery module, it is ensured that the energy storage battery cells are located in the same temperature physical environment, the temperature consistency of the system is greatly improved, the problem of uneven heat dissipation is fundamentally solved, the service life of the energy storage cabinet is directly prolonged, the immersion liquid has the flame-retardant characteristic, and the service life of the energy storage cabinet is prolonged. Thermal runaway of a battery cell can be effectively restrained, fire and explosion risks are reduced from the source, system operation safety is guaranteed, meanwhile, the type selection standard of cooling liquid is defined, the design of a sealed cabin is optimized, the heat exchange efficiency is improved through a double-circulation branch of a liquid cooling unit, the key bottleneck of an immersed cooling technology in energy storage system integration is thoroughly solved, and the energy storage system integration efficiency is improved. And full landing of technical advantages is realized.

The invention belongs to the technical field of electrical equipment fault monitoring, and discloses a fault monitoring system for electromechanical installation engineering, which comprises a high-impedance fault identification module, extracts nonlinear harmonic features through current signals, constructs a frequency domain-time domain joint feature set in combination with space-time magnetic distortion in an electromechanical installation process, and performs fault identification on the nonlinear harmonic features through the high-impedance fault identification module. Non-linear characteristic response identification of the high-impedance fault is carried out, and a high-impedance fault characterization result is output; the transient fault capturing module is used for positioning a risk time window according to a high-impedance fault characterization result, and identifying the starting and ending boundaries of an electrical disturbance behavior in combination with a double-threshold mutation mechanism; synchronously extracting corresponding operation condition parameters, constructing a short-time process behavior model taking electrical disturbance as a source, and outputting a transient disturbance sequence; and the sensitivity of fault identification, the accuracy of positioning and the real-time performance of diagnosis are integrally improved.

The invention discloses a thermal power energy storage combined frequency modulation control method and system, and belongs to the technical field of power system frequency modulation control, and the method comprises the steps: S1, carrying out the cooperative control through a DCS, an electrical RTU, and a PMU device, and collecting data in real time; s2, establishing an EMS system, performing real-time monitoring on operation parameters, and performing energy storage available capacity evaluation; s3, judging whether the unit is in an AGC automatic control mode or not, if so, calculating a power deviation value actually sent by the unit, and generating an energy storage system dynamic compensation instruction, otherwise, returning to S1; s4, executing an energy storage system dynamic compensation instruction, and implementing a cooperative control strategy by adopting a hybrid energy storage architecture formed by a super capacitor and a lithium iron phosphate battery; s5, executing the charging and discharging power instruction through the power conversion system, and configuring an electric core level over-charging and over-discharging protection mechanism; and S6, judging whether a primary frequency modulation action signal of the power grid is detected or not, if so, immediately terminating the response of the energy storage system to the power grid AGC instruction and maintaining the current power output state, and if not, returning to S3.

The invention discloses a method and equipment for determining a wiring state and a storage medium. The method comprises the following steps: receiving target image data containing image information at a wiring position, performing target detection and feature extraction processing on the target image data, automatically identifying a connecting element (a first target) and an identifier (a second target) thereof in an image, and simultaneously extracting an appearance visual feature (a first feature) of the connecting element and an identification code feature (a second feature) of the identifier; and performing topology construction processing based on the obtained target and characteristics to generate topological graph data capable of accurately representing the connection relationship of the electrical devices. And finally, comparing the topological graph data with a preset standard wiring template topological graph, and automatically generating judgment information for indicating whether the wiring connection state is correct or not according to a topological matching result. Therefore, misjudgment caused by artificial fatigue, negligence and experience difference is effectively avoided.

An electrical device of a rotational device for a human-powered vehicle comprises an electronic controller. The electronic controller is configured to operate with first power consumption in a first state and configured to operate with second power consumption lower than the first power consumption in a second state. The electronic controller is configured to change a state of the electrical device from the first state to the second state in a case where a first sleep condition is met for a first sleep determination time in the first state. The electronic controller is configured to change the state of the electrical device from the first state to the second state in a case where a second sleep condition is met for a second sleep determination time in the first state. The second sleep determination time is shorter than the first sleep determination time.

An electrical device of a rotational device for a human-powered vehicle comprises a wireless communicator and an electronic controller. The wireless communicator is configured to wirelessly communicate with an additional electrical device. The electronic controller is electrically connected to the wireless communicator to wirelessly communicate with the additional electrical device via the wireless communicator. The electronic controller is configured to control the wireless communicator to execute pairing in response to a reverse rotation of the rotational device.

A heat-transfer component defines a thermal-interface surface and has a composite thermal-interface material bonded to the thermal-interface surface. The composite thermal-interface material comprises a particulate filler material dispersed within a metallic carrier material having a solid-to-liquid phase-change temperature between about 60° C. and about 90° C. With a thermal-interface material bonded to the thermal-interface surface, the thermal-contact resistance between the thermal-interface material and the heat-transfer component can be reduced or substantially eliminated compared to conventional thermal-interface materials, including conventional metallic thermal-interface materials. The particulate filler material can have a higher bulk thermal conductivity than that of the metallic carrier material and can be wetted by the metallic carrier material, providing a bulk thermal conductivity of the composite thermal-interface material that is higher than that of the carrier material without the particulate filler material. Also disclosed are electrical devices having a heat generating component cooled by such a heat-transfer component.

The invention discloses a BIM-based electromechanical installation resource management and control system, and the system comprises a data sensing layer which integrates a laser radar, an RFID, a UWB and an environment sensor, collects multi-modal data, and forms a total-factor digital twin base data stream after the multi-modal data is preprocessed by a mobile edge computing node; the model fusion layer is used for binding the construction progress with BIM component attributes, dynamically deducing a component-level progress path through an AI algorithm, identifying key path conflicts, integrating ERP resource data to generate a thermodynamic diagram and a cost deviation curve, and automatically detecting pipeline collision, progress lag and cost hyper-branched risks through a rule engine machine learning dual-mode engine; triggering multi-stage early warning and dynamically adjusting a threshold value; the intelligent decision-making layer is used for predicting the progress deviation probability of the future seven days by adopting LSTM, generating a non-tampering deviation correction scheme in combination with a block chain, and realizing hierarchical response through a yellow-orange-red three-level alarm system; and the user interaction layer is used for realizing multi-terminal collaboration and executing verification data feedback through AR glasses, a mobile terminal and a large-screen monitoring center.

Disclosed is a support frame of a CT imaging system, including: a connection flat plate portion; a support body portion disposed on the connection flat plate portion; an X-ray source installation reference portion disposed on the connection flat plate portion; an electrical installation portion; a cooling component installation portion; and a through hole, wherein the through hole is surrounded by the support body portion, the X-ray source installation reference portion, the electrical installation portion and the cooling component installation portion, and the through hole penetrates the connection flat plate portion. The connection flat plate portion, the support body portion, the X-ray source installation reference portion, the electrical installation portion and the cooling component installation portion are integrally formed.

The floor penetrating sleeve structure comprises an original structural plate, a hole is formed in the original structural plate, a floor penetrating sleeve is arranged in the hole in the original structural plate in a penetrating mode, and a water stop ring connected with the floor penetrating sleeve in a sealed mode is arranged in the middle of the wall of the floor penetrating sleeve in the circumferential direction. The water stop ring is located at the top of the hole and is in sealed connection with the edge of the hole, and the wall of the floor penetrating sleeve is in sealed connection with the inner wall of the hole through a sealing structure. The invention further discloses a construction method of the floor penetrating sleeve structure for post-trepanning construction. The method can be used for quickly and conveniently carrying out post-positioned floor penetrating sleeve construction, and can be widely applied to the field of mechanical and electrical installation of constructional engineering.

The invention discloses a construction data management system and method for intelligent building mechanical and electrical installation, and relates to the technical field of intelligent construction, and the method comprises the steps: collecting the multi-source data of a construction site, carrying out the real-time analysis and matching, recognizing a disturbance event, and associating to a corresponding component of a BIM model and a construction plan target process; extracting resource information, calculating the influence of disturbance on subsequent processes, and generating a coupled digital twinborn model; progress and resource deviation analysis is carried out, the construction scheme change influence is simulated, and a comprehensive deviation report is output; calling a knowledge base historical scheme, generating a correction scheme in combination with a current resource state, simulating an implementation effect, and executing after examination and approval; and monitoring the execution of the correction scheme in real time, comparing the actual progress, updating the knowledge base and the BIM model, and forming reusable experience entries.

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 present application provides a carbon material, a method for preparing the same, and a secondary battery and an electrical device comprising the same. The carbon material includes a pore structure, wherein the carbon material has 3R and 2H phases and satisfies 0<I3R(101) / I2H(004)≤0.100, in which I3R(101) is the diffraction peak intensity of 101 crystallographic plane of the 3R phase in the X-ray diffraction pattern of the carbon material, and I2H(004) is the diffraction peak intensity of 004 crystallographic plane of the 2H phase in the X-ray diffraction pattern of the carbon material. The carbon material provided in the present application can make the secondary battery have high initial columbic efficiency and also good cycling and dynamic performances.

A box body, a battery, and an electrical device, the box body comprising a main box body and a separator. Through holes are formed on the main box body, and the separator is arranged in the main box body and blocks the through holes. The separator is configured to be melted through when thermal runaway occurs in a battery cell. In the embodiments of the present application, the separator can block the through holes, such that the inside and outside of the main box body are not in communication, and impurities such as metal particles outside of the main box body cannot enter the main box body from the through holes, thereby reducing the probability of insulation failure caused by metal particles outside of the main box body entering the main box body.

The present teachings relate to an electrical device comprising: a first electrical power input connectable to receive electrical power from a first power source; a second electrical power input connectable to receive electrical power from a second power source different from the first power source; at least one electrical power output, each electrical power output being connectable to supply electrical power to an individual electrical power consumer; a switching circuit operable to route electrical power from the first electrical input to at least one of the electrical power outputs; a sense circuit operable to detect a depletion signal indicating an interruption in the electrical power which is being provided at the first electrical input; a controller operable to control the switching circuit to switch from the first electrical power input to the second electrical power input in response to the depletion signal, thereby routing electrical power from the second electrical input to at least one of the electrical power outputs. Related methods and software products are also disclosed.

The utility model relates to a bunching rack for a computer room, relates to the technical field of electrical installation equipment, and mainly solves the technical problem that wires are damaged due to overexertion when an operator does not know the reserved length. The sound box comprises a base, a pressing wall, a clamping assembly and a sound making assembly, the pressing wall is detachably connected with the base and is parallel to the base, the base and the pressing wall are provided with mounting grooves distributed in an array mode, and the mounting grooves in the base and the pressing wall are correspondingly arranged and form through holes for electric wires to penetrate through; the clamping assembly comprises a first clamping block, a second clamping block, a first elastic piece and a second elastic piece. According to the utility model, the clamping assembly is used for clamping the wire and playing a buffering role when the wire is pulled, so that the wire is prevented from being damaged due to sudden pulling of the wire under the action of pulling force, and meanwhile, the reminding assembly is arranged, so that sound is made when the wire is pulled, and the wire is prevented from being damaged due to subsequent continuous pulling of the wire.

A door system comprises a door frame adapted to be mounted within an opening, a door pivotally attached to the door frame, an AC / DC converter configured to be electrically connected to an AC power unit operably associated with the door system, a slot in the door system, a pre-wired receptacle disposed in the slot, and an electric device removably disposed in the pre-wired receptacle and electrically connected to the AC / DC converter or the AC power unit through the electrical connector of the pre-wired receptacle.

Land vehicles are disclosed. A land vehicle includes a chassis extending in a longitudinal direction and a plurality of wheels supported by the chassis including a pair of front wheels and a pair of rear wheels arranged rearward of the pair of front wheels in the longitudinal direction. The chassis includes a power source cradle assembly supporting a plurality of power sources of the vehicle that is arranged between the pair of front wheels and the pair of rear wheels in the longitudinal direction.

The invention discloses an electrical installation and debugging method for a 110kV booster station, and aims to solve the problems of low precision, low efficiency, large potential safety hazard and the like in the aspects of equipment installation, wiring, debugging and the like in a traditional method. A laser positioning technology, a high-precision measuring instrument, electrical wiring software, big data analysis, artificial intelligence, automatic testing equipment, a perfect quality control and safety management system and the like are used; the installation precision is greatly improved, the wiring is optimized, the debugging efficiency and accuracy are improved, the quality control is enhanced, and the safety guarantee is enhanced. According to the method, the equipment installation precision error can be controlled within an extremely small range, the bus contact resistance is reduced to below 1 / 3 of that of a traditional mode, the cable fault checking time is shortened by more than 60%, the debugging time is shortened by 30%-40%, the data accuracy is improved by more than 95%, and the comprehensive construction cost is reduced by 10%-15%. The device is suitable for electrical installation and debugging engineering of various 110kV booster stations.

The present teachings relate to an electrical device comprising: a first electrical power input; a second electrical power input; an electrical power output; a switching circuit operable to route electrical power from the electrical power inputs to the electrical power output; the switching circuit comprising: a first switching element activable to facilitate delivery of electrical power from the first electrical power input to the electrical power output; and a second switching element activable to facilitate delivery of electrical power from the second electrical power input to the electrical power output; a controller operable to control the switching circuit to switch to the first electrical power input or the second electrical power input for selecting which of said electrical power inputs is to supply electrical power at the electrical power output; wherein the electrical device is operable to determine a timing sequence of switching between the first electrical power input and the second electrical power input. Related circuits, methods and software products are also disclosed.

A battery includes a frame defining an interior space. The frame includes an inner layer including a material having a negative Poisson's ratio (NPR material), and an outer layer disposed on the inner layer such that the inner layer faces the interior space and the outer layer faces an exterior of the frame. The battery includes an electrolyte contained in the interior space of the frame; a positive electrode disposed in the interior space of the frame, the positive electrode including a positive electrode active material; and a negative electrode disposed in the interior space of the frame, the negative electrode including a negative electrode active material.

A preformed block is used for housing and routing electrical power cables, and comprises a central cavity. At least two adjacent faces of the block have an opening which connects to the central cavity. Electrical power cables can thus be routed within the block between those openings, from a side face (leading to a trench) to the top face (leading to an electrical installation on top). There is also provided an electric vehicle charging station using the precast block and a method of casting a block.

The invention belongs to the technical field of electromechanical installation, and particularly relates to a multidirectional lifting device suitable for building electromechanical installation. The bottom of a transfer frame is rotationally connected with a support, the inner wall of the support is rotationally connected with a rolling rod, and the top of the transfer frame is provided with a transfer part; the surface of the stabilizing plate is fixedly connected with the inner wall of the transferring frame, the inner wall of the transferring frame is fixedly connected with a supporting plate, the end of the transferring frame is fixedly connected with a power device, the output end of the power device is fixedly connected with a threaded rod, and the bottom of the inner wall of the transferring frame is slidably connected with a moving block; the inner wall of the adjusting frame is fixedly connected with a driving device, the output end of the driving device is fixedly connected with a screw rod, the top of the inner wall of the conveying frame is fixedly connected with an extrusion plate, the top of the conveying frame is provided with a lifting component, and the surface of the lifting component is provided with a stabilizing component. According to the device, workers do not need to support the equipment, the electromechanical equipment is stably transferred in a suspended state, and potential safety hazards are avoided.

The invention relates to the technical field of electrical devices, in particular to a fuse support structure and a fuse assembly. The technical scheme comprises a support seat, the top end of the support seat is provided with a limiting ring, the top end of the limiting ring is rotatably connected with a cover plate, and a buckle assembly is arranged between the limiting ring and the cover plate; the at least two clamping plates are oppositely arranged, the clamping plates are arranged in the limiting ring, and elastic mechanisms are arranged on the sides, deviating from each other, of the two clamping plates; the connecting rod is fixedly connected to the bottom end of the limiting ring, and the end, away from the limiting ring, of the connecting rod is sleeved with an L-shaped pipe. Through double-working-condition linkage optimization design, double safety protection is achieved, under the normal working condition, the elastic mechanism drives the clamping plates to symmetrically fix the electric wire, stress concentration caused by self weight is dispersed, and mechanical fatigue of a connection interface is avoided; and under the fault working condition, the pulling mechanism triggers mechanical linkage, so that the clamping plates synchronously move to cut off a power supply path, and the capacitor energy storage residual risk is eliminated.

A silicon composite material and a preparation method, a negative electrode plate, a battery, and an electrical apparatus. The silicon composite material comprises a silicon-based material and a flexible material, wherein the hardness of the flexible material is less than the hardness of the silicon-based material. The silicon-based material comprises at least one of elemental silicon, a silicon-oxygen compound, a silicon-carbon composite, a silicon-nitrogen composite, and a silicon alloy. The flexible material is located on at least part of the surface of the silicon-based material. By means of the combination of the flexible material and the silicon-based material, the risk of a current collector being crushed during the preparation of an electrode plate can be reduced, and the compacted density of the electrode plate can be improved, thus increasing the energy density of a battery.

The utility model relates to an arc extinguishing system of an electrical device, comprising: an arc extinguishing chamber comprising a housing, arc extinguishing grid sheets and a gas generating sheet, the arc extinguishing grid sheets are arranged in the housing in a row, an opening at one side of the housing faces a contact system, an opening at the other opposite side is an exhaust port, and the gas generating sheet is arranged at the opening at one side of the housing facing the contact system; the flow guide part is arranged at the exhaust port of the arc extinguish chamber, at least one air outlet channel is arranged in the flow guide part, the outer side of the flow guide part is tightly attached to the inner wall of the electrical device, or the outer side of the flow guide part and the inner wall also form air outlet channels, and the total number of the air outlet channels is not less than two. Compared with the prior art, the plurality of air outlet channels are arranged at the air outlet of the arc extinguish chamber, so that the air outlet efficiency of each area of the arc extinguish chamber is optimized, unsmooth local air flow is avoided, and the utilization rate of the arc extinguish grid plates is improved; the gas in each gas outlet channel is insulated from each other, thereby preventing the arc from bypassing the arc extinguish chamber grid plate and causing the failure of the arc extinguish grid plate in a large area in the gas outlet channel.

The invention discloses a fully-prefabricated beam-slab integrated floor system and a construction method thereof, and belongs to the related field of building structures, the fully-prefabricated beam-slab integrated floor system comprises a plurality of groups of cross beam bodies and a plurality of groups of cover plate bodies, the plurality of groups of cross beam bodies are transversely arranged side by side, and the plurality of groups of cover plate bodies are arranged on the outer surfaces of the upper ends of the cross beam bodies; a butt-joint clamping strip is fixedly installed at the top of the cross beam body, a groove used in cooperation with the butt-joint clamping strip is formed in the bottom of the cover plate body, a plurality of sets of reinforcing ribs are distributed on the outer surface of the upper end of the butt-joint clamping strip at equal intervals, and a plurality of sets of rectangular notches used in cooperation with the reinforcing ribs are formed in the inner side of the cover plate body in a penetrating mode. By arranging the splicing sliding rail and the moving frame, hoisting operation of a floor system and a beam body structure can be rapidly completed, the construction efficiency is improved, meanwhile, cable notches are reserved in the surface of the floor system, later mechanical and electrical installation operation is facilitated, by arranging the lifting clamping base and the inner sliding base, the construction difficulty of a multi-story building is lowered, and upper and lower layer conversion operation is more convenient.

1. Name of the product in this design: Electrical installation cover. 2. Purpose of this design: As a decorative accessory for electrical switches and sockets. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the key design points: Design 1 3D view. 5. Design 1 is designated as the basic design.

The utility model discloses a sliding type base for electromechanical installation. The sliding type base comprises a sliding type base body, a first guide rail, an installation block, a supporting mechanism and an adjusting mechanism. The adjusting mechanism is arranged at the end, away from the sliding type base body, of the mounting block and comprises a driving part and an adjusting part, the adjusting part is hinged to the supporting mechanism and used for adjusting the height of the supporting mechanism, and the driving part is in threaded sleeving connection with the adjusting part and used for driving the adjusting part to move; the adjusting mechanism is arranged at the top of the base and drives the first driving motor, the first driving motor drives the first threaded rod to rotate, the first threaded rod drives the moving block to move, the moving block and the mounting blocks move, and the first rotating rod and the second rotating rod rotate through movement of the moving block; the height of the supporting frame can be automatically adjusted according to the installation requirement of the electromechanical equipment, and the flexibility is improved.

The invention relates to electric devices by which electrical signals are transmitted, such as e.g. a ribbon cable, an integrated semiconductor component, an electrical circuit arrangement or another electrical cable.