762 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 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.

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.

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.

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; 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.

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.

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.

A negative electrode active material, a secondary battery and an electrical apparatus. The negative electrode active material includes a silicon-carbon composite material, where the silicon-carbon composite material includes a first silicon-carbon composite particle and a second silicon-carbon composite particle; the first silicon-carbon composite particle includes a first carbon matrix having a pore structure and a first silicon-based material arranged in the pore structure of the first carbon matrix; the second silicon-carbon composite particle includes a second carbon matrix having a pore structure and a second silicon-based material arranged in the pore structure of the second carbon matrix; and a mass percentage content of a silicon element in the first silicon-carbon composite particle is greater than a mass percentage content of a silicon element in the second silicon-carbon composite particle.

The utility model relates to the technical field of electrical installation, in particular to an electrical installation threading device which comprises a bottom plate, a winding frame fixedly connected to the top of the bottom plate, a winding drum arranged in the winding frame, rotating shafts fixedly connected to two ends of the winding drum, a rotating handle fixedly connected to one end of a front-end rotating shaft, and a driving chain wheel fixedly connected to one end of a rear-end rotating shaft. The driving chain wheel and the driven chain wheel are connected through a chain; the reciprocating rod is sleeved with a reciprocating plate; a through hole is formed in the reciprocating plate; a convex block is fixedly connected to the inner wall of the through hole; the inner wall of the reciprocating frame is fixedly connected with limiting rods. According to the winding device, the reciprocating plate reciprocates along the reciprocating rod while the winding drum rotates, a plastic steel wire can move towards the right side, and the situation that the plastic steel wire is knotted and difficult to pull can be avoided by reversely rotating the rotating handle.

Embodiments of the present application provide a shell component, a battery cell, a battery, and an electric device. The shell component comprises a non-weak area and a weak area which are integrally formed, the shell component is provided with a groove part, the non-weak area is formed around the groove part, the weak area is formed at the bottom of the groove part, and the weak area is configured to be damaged when the battery cell releases internal pressure. The average grain size of the weak area is S1, and the average grain size of the non-weak area is S2, wherein S1 / S2≤0.9. The average grain size of the weak area is reduced, the mechanical properties of materials of the weak area are improved, the toughness and the fatigue resistance of the weak area are improved, the risk that the weak area is damaged under the normal use condition of the battery cell is reduced, and the service life of the battery cell is prolonged.

This application provides a separator, a secondary battery, and an electric apparatus, where the separator includes a first base film, a second base film, and an adhesive layer. The adhesive layer is disposed between the first base film and the second base film. A melting point of the second base film is higher than a melting point of the first base film. A tortuosity of the first base film is greater than a tortuosity of the second base film.

The utility model discloses an electrical installation plate convenient for installation of electrical components, which comprises an installation plate body, a heat dissipation mechanism arranged on the installation plate body, an installation mechanism arranged on one side of the installation plate body, the installation mechanism symmetrically arranged on the installation plate body on two opposite sides of the heat dissipation mechanism, and connection plates arranged at two opposite ends of the bottom of the installation plate body. The number of the connecting plates is two, a wire arrangement plate is arranged between the two connecting plates, wire arrangement holes are formed in the wire arrangement plate, a fixing mechanism is arranged on the wire arrangement plate on one side of the wire arrangement holes, an electrical component body is arranged on one side of the mounting plate body, a wire body is arranged at the bottom of the electrical component body, and the wire body penetrates through the wire arrangement plate through the wire arrangement holes and is fixed through the fixing mechanism. According to the utility model, a series of structures are arranged, the clamping support is convenient to mount and dismount, the mounting is firm, the mounting plate has heat conduction and heat dissipation functions on the mounting surfaces of the electrical components, the electrical components mounted on the mounting plate are neat in wire arrangement, the wire bodies are firmly fixed, and the wires are prevented from falling off.

The invention relates to a disconnect switch (1) for an electrical circuit, in particular for disconnecting an electrical energy storage device from an electrical installation, comprising a busbar (3) via which a first power terminal (4) of the disconnect switch (1) is electrically connected to a second power terminal (5) of the disconnect switch (1), and a disconnecting element (7) for mechanically cutting the busbar (3). The disconnect switch (1) is characterized by an energy absorption element (9) for absorbing thermal energy generated as a result of the cutting, which has a shell (10) made of a polymer material and an energy absorption body (11) made of a mineral material arranged in the shell (10).

The invention belongs to the technical field of mechanical electrical installation, and particularly relates to a mechanical electrical positioning device which comprises an electrical cabinet, pushing mechanisms are symmetrically arranged at the bottom of the electrical cabinet, and rollers are arranged at the bottoms of the pushing mechanisms; by arranging the pushing mechanism, the electrical cabinet is in a vertical state before being placed on the ground, and the electrical cabinet can be supported after being placed on the ground, so that the electrical cabinet is balanced in the adjusting process of the padding assembly and can be stably placed; the first telescopic column drives the padding assembly to move back and forth, so that the position needing padding can extend into the bottom of the electrical cabinet, danger caused by manual adjustment is avoided, mechanical automatic installation is achieved, the electrical cabinet is subjected to angle adjustment and supporting through the machine, the danger of manual adjustment is reduced, and the equipment is adjusted step by step. And the electrical cabinet is finally and stably placed on the ground.

A contactor device is provided that includes a movable contact configured to selectively open / close an electrical circuit. The movable contact is coupled to the shaft, and the shaft is retained in the closed position by the latch. The movable member is biased away from the latch. During an event, a biasing force that biases the movable member away from the latch is overcome. The movable member disengages the latch from the shaft, allowing the shaft to move to the open position. In an example, a movable member is disposed over an opening of a housing of the contactor device.

To provide electrical equipment with excellent initial fire suppression capabilities that can prevent the occurrence and spread of fires. [Solution] An electrical installation comprising an electrical device and a housing for housing the electrical device, wherein a fire extinguishing element is provided on at least a portion of the inner wall of the housing so as to face the electrical device, and the fire extinguishing element includes a fire extinguishing material formed from a composition comprising a fire extinguishing agent and a binder.

The invention discloses a protection device for electrical installation, and relates to the technical field of electrical equipment installation auxiliary devices, the protection device comprises a protection shell, heat continuously generated by a cable joint is absorbed through a heat conduction seat, graded heat dissipation action is triggered through the thermal driving characteristic of a shape memory alloy spring, when the temperature rises, a rotating plate turns over to form a directional air guide channel, and the heat dissipation effect is improved. Under the high-temperature extreme working condition, the self-adaptive structure further focuses the airflow, the metal foam and the phase-change material cooperatively cool the airflow, deep heat dissipation is achieved, heat is prevented from being accumulated in the protective shell and around the connector, the whole heat dissipation process does not need external energy, driving is completely depended on heat generated by the cable, and the service life of the cable is prolonged. And meanwhile, the rainproof and dustproof effects are guaranteed through the graded sealing design, the thermal aging speed of insulating glue, a heat-shrinkable sleeve and other insulating materials at the joint is effectively delayed, the insulating protection effect is enhanced, and the safety risk caused by high temperature is reduced.

A water-bearing electrical apparatus having a water absorption element and an electrochemical cell which has a cathode arranged in a cathode space and an anode arranged in an anode space, which are spatially separated, wherein the electrochemical cell is designed to generate an alkaline partial solution in the cathode space and an acidic partial solution in the anode space when it contains a conductivity transmitter-containing medium and the DC voltage is applied to the anode and the cathode, and to heat a fluid located in the cathode and anode spaces when the AC voltage is applied to the anode and the cathode. A method includes generating an alkaline partial solution in the cathode space and an acidic partial solution in the anode space while applying DC voltage, applying AC voltage to heat fluid in the electrochemical cell, and conveying the alkaline partial solution into the water absorption element.

This application provides a current collector and a preparation method thereof, a secondary battery, a battery module, a battery pack, and an electric apparatus. The current collector includes a metal substrate and a surface treatment layer formed on at least one side of the metal substrate, where the surface treatment layer includes oxide and / or nitride of the metal substrate. The surface treatment layer can protect the metal from corrosion by anions in the electrolyte solution or optimize the metal nucleation behavior, improve the coulombic efficiency and cycle capacity retention rate of the battery, and improve the storage performance of the battery.

An electrical device comprising a capacitor for high voltage applications and a method for manufacturing the same are provided. The invention relates to an electrical device (100) comprising a capacitor for high voltage applications and a method for manufacturing the same. In particular, the proposed electrical device (100) comprises a capacitor comprising: - a bottom electrode (110) comprising a semiconductor substrate (111), - a dielectric (120) extending conformally on the bottom electrode (110), - a top electrode (130) on the dielectric (120), wherein the substrate (111) comprises: - a first region (113) of a first doping type extending upwardly from a bottom surface (111-BS) of the substrate to a top surface (111-TS) of the substrate, - a second region (114) of a second doping type having opposite charge carriers compared to the first doping type and extending downwardly from the top surface (111-TS) of the substrate to a given depth (111-D).

The utility model discloses an electrical installation tool box convenient to use, which belongs to the technical field of electrical installation tool boxes, can effectively carry an installation box during working, and can quickly realize integral switching of tools with different specifications during subsequent working. The electrical installation tool box convenient to use comprises an installation box, a box cover is installed at the top of the installation box through hinges in a hinged mode, a containing cavity is formed in the top of the installation box, installation cavities are formed in the positions, corresponding to the bottom of the containing cavity, of the installation box at equal intervals, and collection drawers are installed in the installation cavities in an inserted mode. A containing pad is installed at the top of the collecting drawer in an embedded mode, and a tool containing groove is formed in the top of the containing pad. A first fixing band is mounted at one end of the top of the mounting box, a second fixing band is mounted at the other end of the top of the mounting box, the first fixing band and the second fixing band are connected in a y shape, and a buckle is mounted on the first fixing band.

This application relates to the field of battery technologies and provides a casing assembly, a battery cell, a battery, and an electric apparatus. The casing assembly includes a casing and a sealing assembly. A through hole is provided on the casing, and the sealing assembly seals the through hole. An insulating member of the sealing assembly covers a conductive member, and the conductive member has a first contact portion and a second contact portion. A connecting member is formed with a hollow inner cavity, the insulating member fills the inner cavity, the connecting member is connected to the casing, and the first contact portion and the second contact portion are respectively located at an inner side and an outer side of the casing. According to this application, providing the casing assembly having the sealing assembly and blocking the through hole of the casing with the sealing assembly can effectively reduce occurrences of electrolyte leakage and improve sealing effect.

The utility model provides a drilling device for electromechanical installation, and relates to the technical field of drilling, the drilling device comprises a machining box, a machining table and a clamping mechanism are fixedly arranged at the inner bottom end of the machining box, the machining box is arranged at the top end of the machining table, and the machining box is provided with double doors capable of being opened; the clamping mechanism comprises a plurality of limiting pieces, the limiting pieces are arranged in a circle, each limiting piece comprises a limiting plate, a threaded rod and a clamping plate, the limiting plates are fixedly arranged, and the threaded rods penetrate through the limiting plates and are in threaded connection with the limiting plates. The clamping device has the beneficial effects that through the matched design of the threaded rod and the self-locking threaded groove, it is guaranteed that a workpiece is not loosened in the machining process, and the clamping force is improved; precise displacement of the perforating machine in the horizontal direction is achieved through a spiral transmission structure of the traction rod and the moving block; a conveyor belt and an electric lifting column are integrated, manual intervention is reduced, and machining efficiency is improved; the design of waterproof paint and a protective cover prolongs the service life of the device and ensures the operation safety.

This application provides a negative electrode material and a preparation method thereof, a secondary battery, and a power-consuming device. The negative electrode material in this application is of a core-shell structure including an inner core and an outer shell. The inner core is a negative electrode active material. The outer shell includes a first shell layer coating a surface of the inner core and a second shell layer coating a surface of the first shell layer, the first shell layer is a transition metal compound layer, the second shell layer is a conducting layer, a maximum thickness of the first shell layer is less than or equal to 10 nm, and the second shell layer is a carbon layer. A total thickness of the outer shell is less than or equal to 15 nm. Based on the negative electrode material, structural stability of the negative electrode material can be improved, a probability of cracking of a coating layer can be reduced, and high energy density of the negative electrode material can be maintained.