19results about How to "Avoid insulating properties" patented technology

The invention discloses an electric arc dynamic suppression method for hot plugging of an electric meter connector, relates to the technical field of electric energy metering equipment, and aims to solve the problems of electric arc generation, overproof metering error and the like caused by passive protection and lack of dynamic cooperative control in the prior art. The core of the method is that gap distance and power grid voltage phase signals are acquired in real time through a microcontroller, and the plugging speed, the signal injection and the position fine adjustment are dynamically regulated and controlled in three stages of pre-contact, low-current transition and full connection; and a machine learning model is combined to optimize a parameter threshold value, a redundancy safety mechanism and a multi-phase electric meter cooperative control strategy, so that double management and control of arc peak energy and metering errors are realized. The method can actively inhibit arc generation, avoid connector ablation and insulation deterioration, guarantee metering continuity and accuracy, adapt to complex power grid and environment working conditions, and meet the precision requirement of the intelligent electric meter.

The application relates to the technical field of transformers and discloses a transformer coil assembly adopting a winding positioning support composite structure, which comprises an insulating sleeve, left-right symmetrical mounting plates are fixedly connected to the insulating sleeve, an isolation part for isolating windings and an iron core is connected to the mounting plate on the right side, and a ventilation part for assisting heat dissipation of the windings is further arranged on the insulating sleeve and the mounting plate; wherein the isolation part comprises annular plates, a plurality of annular plates are uniformly and slidably nested from inside to outside, and a plurality of supports are fixedly connected to the left end of the annular plates in a uniform circumferential direction. The transformer coil assembly adopting the winding positioning support composite structure can effectively solve the problems that, in the prior art, when a transformer support is manually installed, operation deviation is prone to occurring, the spacing of the supports is uneven, the distance between the windings and the iron core or between adjacent windings is uneven, and the problems of insufficient insulation, space waste and aggravated magnetic leakage are caused.

This utility model provides a cable fixing structure for the handover test of a photovoltaic power station transformer substation, belonging to the technical field of cable fixing structures. The cable fixing structure includes: a wedge-shaped metal ring assembly divided into at least three circumferential segments, each segment having a spiral groove on its outer surface; a high-friction flexible pad tightly fitted to the inner circumferential surface of each segment; and an integral elastic steel ring surrounding the outer side of the metal ring assembly, the inner circumferential surface of which has a protruding ridge that engages with the spiral groove. When the elastic steel ring rotates relative to the metal ring assembly, the protruding ridge slides along the spiral groove, driving each wedge-shaped metal ring segment to synchronously contract radially and synchronously generate axial displacement, thus forming a self-tensioning clamp. This solves the problem of loose cable joints and uneven stress during the handover test caused by the inability of traditional fixing structures to adaptively clamp according to changes in cable tension.

The utility model provides a kind of insulating bearing cable anchor, comprising: connecting component, with power transmission line hardware connection and bear load;Core body lifting ring, accommodate the glass fiber reinforced silicone rubber wire harness wound to form core body and bear load;Clamp, the inner cavity of the clamp is horn shape, the horn shape inner cavity is consistent with the wire harness of the core body lifting ring wire slot tangent direction introduction, gather has been wound in the core body lifting ring, wire harness, which needs to be shaped, is shrunk into substantially cylindrical through the cylindrical outlet of the clamp;The connecting component is connected with the core body lifting ring, and the clamp is tightly clamped on the core body lifting ring. The utility model has the beneficial effects that: by the inner cavity of the clamp is horn shape, improve the stress state of wire harness, and by additionally provided glue injection hole groove A and glue injection hole B, form complete sealing structure after silicone rubber overall coating forming, improve the reliability of product and overall electromechanical performance.

This utility model relates to the field of battery technology, providing a terminal structure, a top cover assembly, a housing assembly, a single battery cell, and a battery pack. The terminal structure includes a terminal post assembly and a seal. The terminal post assembly includes a main body and a first connecting portion and a second connecting portion spaced apart from each other and arranged around the periphery of the main body. The seal is fitted onto the main body and is located between the first connecting portion and the second connecting portion. One of the first connecting portion and the seal has a first protrusion protruding towards the other, abutting against the other; and / or, one of the second connecting portion and the seal has a second protrusion protruding towards the other, abutting against the other. This prevents the seal from failing due to creep, extending its service life and ensuring the battery's sealing performance during long-cycle use.

The utility model relates to battery technology field, concretely relates to electric core cover plate subassembly, electric core and battery package. Electric core cover plate subassembly includes cover plate body, pole, first sealing washer and second sealing washer. Pole includes pole column body and pole bottom plate, along the length direction of cover plate body, pole column body is eccentric arrangement on pole bottom plate, pole column body is insulated with cover plate body, the surface of pole bottom plate is equipped with the annular sealing groove around pole column body to cover plate body, first sealing washer is set up on pole column body, second sealing washer is located in sealing groove and is sealed between cover plate body and pole bottom plate by compression, and the compression rate of second sealing washer satisfies preset condition. The utility model discloses through sealing groove and double sealing washer design, effectively solved the problem of poor sealing of eccentric pole because of the bottom plate warping, avoids the electrochemical corrosion or insulation aging between pole and cover plate body, reduces the short circuit risk.

This invention relates to the field of output terminal moisture protection technology, and discloses an intelligent moisture-proof device for photovoltaic inverter output terminals, comprising: a sealed protective shell with an opening at the bottom and a sealing groove around the opening, a sealing gasket embedded in the sealing groove, mounting holes for matching bolts around the perimeter of the sealed protective shell, and an alarm, controller, and semiconductor cooler mounted on the top. The inner cavity of the sealed protective shell has a temperature-conducting inclined plate that fits against the semiconductor cooler, and a temperature and humidity detector is installed on the inner wall. The outer surface has a wiring hole with a sealing ring, an exhaust hole with an exhaust fan, and a sealing groove. A sealing block and a sealing outer plate are respectively fitted into the inner cavity of the sealing groove and the exhaust hole. This device can form a closed-loop, surface-sealed barrier, effectively preventing external moisture from intruding into the inverter output terminal area, avoiding terminal oxidation and degradation of insulation performance due to moisture.

The invention relates to the technical field of new energy, in particular to a gluing tool and a battery system.The gluing tool comprises a moving part which moves relative to a pole piece; the gluing assembly is arranged on the moving part and comprises a glue storage part and a gluing part, the glue storage part is used for storing insulation glue, the gluing part is provided with a glue outlet, and the glue outlet is connected with the glue storage part; the adjusting assembly is arranged on the gluing piece and is used for adjusting the widths of the two ends of the glue outlet in the length direction of the glue outlet, so that the gluing thickness on the pole piece is consistent; the length direction of the glue outlet is perpendicular to the moving direction of the moving part. In the whole gluing path, the consistency of the thickness of the glue layer is ensured, and the safety performance of the battery is improved.

The utility model relates to a power supply system for new energy engineering machinery and agricultural machinery accessories, and belongs to the technical field of new energy power supply devices. Comprising a vehicle end direct current charging interface and an accessory end electricity taking plug. The vehicle end direct current charging interface is an original national standard direct current charging interface of new energy engineering machinery / agricultural machinery, the accessory end electricity taking plug is electrically connected with a vehicle high-voltage battery pack through the vehicle end direct current charging interface, and the accessory end is connected to the vehicle end direct current charging interface for electricity taking through a cable with the accessory end electricity taking plug. When the accessory works, electricity taking and vehicle charging share the same electrical interface. Through interface multiplexing and intelligent design, a technical closed loop is formed in the aspects of reducing cost, improving adaptability, enhancing safety, optimizing energy management and the like, and a high-reliability and high-compatibility solution is provided for accessory power supply of new energy engineering machinery / agricultural machinery.

The utility model relates to a high-voltage measurement and protection device of an electric power system, in particular to a supporting type large creepage distance current transformer. Comprising an insulator and a coil device body sealed in the insulator, primary and secondary wiring terminals are arranged at the top and bottom of the insulator, umbrella skirts are arranged on the outer surface of the insulator, and front and rear side voltage-sharing nets are arranged at the lower end in the insulator; the coil device body comprises an iron core, a secondary winding and a primary winding, wherein the secondary winding and the primary winding are wound on the iron core from inside to outside. An insulating layer and a protective layer are wrapped on the iron core. The secondary winding is supported by a secondary winding support, an insulating paperboard and two layers of polyester films are arranged at the two ends of the secondary winding in a padded mode, a polyester film is arranged between secondary wire layers of the secondary winding in a half-stacked mode, an insulating layer, a shielding layer and a protective layer are wrapped on the outer side of the secondary winding, and a polyester belt, a polyurethane plate and semi-conductive crepe paper are wrapped on the outer side of the primary winding. The utility model has the advantages of small volume, low cost, large surface creepage distance, high dynamic thermal stable current, high metering precision, moisture resistance, condensation resistance and electricity larceny prevention.

The utility model provides an intelligent distribution box, which relates to the technical field of electric appliance control, and comprises a plastic case, the plastic case comprises a top cover, a bottom plate and a high cover, and the top cover and the bottom plate form a protection structure through a sealing rubber ring, and is characterized in that the interior of the plastic case is divided into a control cavity and a wiring cavity, a main control board is arranged in the control cavity; a main control chip is arranged on the main control board; the master control chip comprises a first master control chip and a second master control chip, and the first master control chip and the second master control chip are connected through a USART interface to form a master-slave control architecture. Compared with the prior art, through the cooperation of the above structures, the device has the following beneficial effects: 1, the reliability, the intelligent level and the environmental adaptability of the device are significantly improved; and secondly, the temperature rise during large current transmission is greatly reduced, the reduction of conductivity and insulation aging are avoided, and the signal transmission stability is ensured through strong and weak current separation, grounding optimization and anti-interference measures in the whole scheme.

A kind of cable joint explosion-proof box double-end fixing structure belongs to cable explosion-proof field, including shell, shell can be fixedly connected with the lateral wall of box body, the middle part of shell is provided with through-hole, through-hole can be passed by cable;The end of shell away from box body is outer end, the end of shell close to box body is inner end;The outer end of shell is provided with outer pressure seat, the inner side of outer pressure seat is provided with bushing, the outer portion of outer pressure seat is provided with fastening sleeve, one end of fastening sleeve is fixedly connected with shell;The inner end of shell is connected with the large mouth end of self-locking cone sleeve, cable can pass through self-locking cone sleeve, the small mouth end of self-locking cone sleeve is towards box body center, the small mouth end of self-locking cone sleeve is slidably provided with compression ring.The large mouth end of self-locking cone sleeve of the present application is outward, small mouth end is towards box body center, cable is from outside to inside and is inserted, the compression ring of small mouth end of self-locking cone sleeve applies axial pre-tightening force, self-locking cone sleeve is pushed along small mouth to large mouth direction, and then radial compression and occlusion are generated, to realize sealing, prevent pulling out, prevent cable from swinging.

This utility model relates to the field of cable stranding technology and provides a fire-resistant cable stranding machine, including a pressure plate. An output block is fixedly connected to the top of the pressure plate. A rotating rod is rotatably connected inside the output block. Two connecting plates are fixedly connected to the outer surface of the rotating rod. A rod sleeve is fixedly connected to the end of each connecting plate away from the rotating rod. A rotating rod is rotatably connected to the inner surface of the rod sleeve. A moving gear is fixedly connected to the end of the rotating rod near the output block. Fixed gear rings are meshed on the outer surfaces of the two moving gears. This utility model features a self-rotating and revolution-rotating stranding structure, ensuring uniform rotation of the single wire during stranding. This avoids single wire deviation or knotting due to uneven tension, controls the consistency of the stranding pitch, ensures a tight structure and uniform outer diameter of each layer of the cable, forms a stable spiral stranding structure, improves the cable's tensile and bending resistance, and prevents single wire breakage or insulation damage due to excessive twisting.

The invention relates to the technical field of coal mine mechanical automation control, and discloses a coal mine driving anchor machine explosion suppression type electro-hydraulic control system which comprises a valve box body, and a control and acquisition circuit board, a proportional reversing valve, an attitude sensor, a flow meter, a pressure sensor and a water and oil leakage sensor are integrally arranged in the valve box body. A multi-source redundancy sensing and fault self-adaptive response system runs in the control and acquisition circuit board and is respectively connected with each execution and sensing element. The state fusion model unit integrates flow and pressure data to judge the clamping stagnation working condition of a drill rod and controls a feeding oil cylinder to withdraw, closed-loop diagnosis and reset of abnormal action of a proportional valve are achieved through feedback of a valve element position sensor, and the main loop safety isolation unit responds to water leakage and oil leakage signals to trigger the power module to be powered off emergently. According to the system, high-integration-level protection and fault self-adaptive response are achieved, and the operation safety and the control precision of the bolter-miner under the severe working condition are guaranteed.

The invention provides a baby incubator and a baby culture transfer imaging system, and relates to the technical field of medical treatment. The infant incubator comprises a base, an infant cabin, an air duct structure, a flow driving device, a heating device and a heat exchange device, two ends of the air duct structure are respectively communicated with an air inlet and an air return port of the baby cabin to form an air flow circulation path; the heating device is at least partially located in an inner cavity of the air duct structure so as to heat fluid in the air duct structure. The flow driving device comprises an airflow driving part and a driving unit, the airflow driving part is located in an inner cavity of the air duct structure, the driving unit is in driving connection with the airflow driving part, and the driving unit comprises a non-magnetic motor; the heat exchange device is thermally coupled with the driving unit and airflow in the air duct structure, and the thermal coupling position of the airflow in the air duct structure and the heat exchange device is located on the upstream of the heating device.

The utility model relates to a protective suspension type closing resistor unit structure, which comprises a plurality of resistor sub-strings which are arranged in a shell and are connected in series, the resistor sub-strings comprise insulating rods which are arranged on a front end cover and a rear end cover in a delta shape, a plurality of I-shaped insulating sheets which are arranged along the axial direction of the insulating rods are arranged on the insulating rods, and the insulating sheets are arranged on the front end cover and the rear end cover. An annular resistor disc is arranged in the insulation sheet, an annular deformation groove located at the corner is formed in a concave ring of the insulation sheet, and the corresponding resistor discs on different insulation rods are connected through copper sheets, space is provided for the edges of the resistor discs through the arrangement of the deformation grooves, the edges of the resistor discs are prevented from being broken, and deflection deformation of the cross-core insulation rod is reduced; through the arrangement of the outer lining, impact damage of airflow to the appearance surface structure of the resistor disc in the inflation and deflation process is prevented, and even if slight abrasion exists, dust particles fall into the trap through the arrangement of the pull-out type particle trap on the shell and the slag falling hole of the outer lining, and insulation breakdown is avoided.

This utility model relates to the field of distribution box technology. It provides a distribution box with protective functions, comprising a distribution box body, a protective component mounted on the back of the distribution box body, and an anti-collision component mounted on the side of the distribution box body. The protective component includes a mounting groove, with a protective collar threaded into the mounting groove. A sliding groove is formed on the side of the protective collar, and a sliding rod is slidably connected in the sliding groove. A mounting block is fixed to the other end of the sliding rod. This technical solution solves the technical problem in related technologies where, during use, if the sealing of the distribution box's inlet and outlet is not tight in rainy weather, rainwater can slide down the wires into the distribution box, potentially causing insulation failure or short circuits inside the distribution box.

The utility model provides a kind of polycrystalline silicon electrode polishing device, it is related to polycrystalline silicon production technical field, including operation cover, polishing disc and polishing brush, the operation cover top side is equipped with dust suction connector, the dust suction connector is connected with negative pressure machine, for negative pressure dust collection, operation cover side wall is connected with multiple upper blow-off connector and lower blow-off connector, for inlet compressed air;The polishing disc is installed in operation cover, and the polishing disc is connected with external power source by the transmission rod that passes through operation cover, and a plurality of polishing brushes are fixedly connected below the polishing disc, and the polishing brush is driven by external power source to polish electrode under the polishing disc.The utility model can effectively improve the dust removal efficiency of polycrystalline silicon reduction furnace electrode, reduce the health risk and equipment failure risk brought by manual operation.

This invention provides a spring-driven radial compression-based pluggable GIS terminal and its assembly method, belonging to the technical field of conductive connection equipment. The terminal includes an epoxy sleeve, terminals, cable cores, stress control components, a stop sleeve, a cone support, a cone support pressure plate, a spring propulsion assembly, and a tail tube. The terminals are disposed within the epoxy sleeve, with one end connected to the GIS equipment via a tapered bevel, and the other end equipped with a watch strap contact finger. The cable core is plugged into the terminals. The stress control component is disposed within the epoxy sleeve and contains a stress cone. The stop sleeve contacts the stress control component. The cone support and the cone support pressure plate are connected via a tightening screw. The spring propulsion assembly includes several springs and guide rods, with the springs positioned between the cone support and the cone support pressure plate. This invention optimizes the electric field distribution, enhances contact stability, improves working efficiency, and reduces processing costs.