164results about How to "Guaranteed insulation performance" patented technology

The utility model discloses an insulating anti-blocking structure and a thin film capacitor thereof. The insulating anti-blocking structure comprises an insulating part, a pasting part, a first copper bar and a second copper bar, the insulating part is positioned between the first copper bar and the second copper bar, so that the first copper bar and the second copper bar are insulated; two ends of the pasting part are respectively adhered to the insulating part and the first copper bar; the two sides of the pasting part are provided with blocking blocks extending outwards, and the blocking blocks are located between the first copper bar and the insulating part. By arranging the insulating part and the pasting part, the insulating property between the first copper bar and the second copper bar is ensured, and the production yield of the film capacitor is improved; by arranging the barrier block and the injection molding part, the injection molding material can be effectively prevented from overflowing between the insulating part and the first copper bar to influence the structural stability of the injection molding part and the product performance of the film capacitor.

The invention discloses a packaging structure of a half-bridge power module. The packaging structure comprises an insulating heat-conducting plate, a multi-layer circuit board, a plastic packaging body and a bridge arm switch, on the other hand, the invention discloses application of the packaging structure of the half-bridge power module in a vehicle-mounted OBC power converter, a DCDC isolation converter, a non-isolation power converter, a cardiac arrest wake-up device and a circuit module formed by combining multiple half bridges such as ANPC, TNPC and Heric. The invention further discloses a manufacturing method of the packaging structure of the half-bridge power module. The manufacturing method comprises the steps of assembling, arranging the overflow area and synchronously filling and grinding to remove the overflow area. The minimum size and low impedance are achieved through the DBC, flexible pin outgoing and welding are achieved through the PCB, the reliability, safety and heat dissipation of the module are supported through the plastic package body, and the expansion temperature monitoring unit and the decoupling capacitor are supported.

The invention discloses an oil-immersed power transformer, which relates to the technical field of transformers, and includes: a transformer body, an oil pillow is connected to the upper part of the transformer body, and also includes: an oil guide pipe, which is located below the oil pillow and is connected to the inside of the oil pillow; a connecting flange, which is connected to the bottom end of the oil guide pipe; a supporting flange, which is located below the connecting flange and connected to the connecting flange through bolts. The invention uses the connecting flange, the supporting flange, the glass tube, the protective tube, the fixed sleeve and the movable seat in coordination. When the movable seat is in the first state, the hygroscopic silica gel balls in the first hygroscopic cavity absorb moisture in the air. When the hygroscopic silica gel balls in the first hygroscopic cavity have a reduced or even ineffective water absorption capacity, the movable seat is adjusted to the second state, and air enters the second hygroscopic cavity. The hygroscopic silica gel balls in the second hygroscopic cavity absorb moisture from the air after passing through the first hygroscopic cavity, ensuring that the air is in a dry state.

The utility model discloses a connecting bolt for a new energy automobile battery module, which comprises a bolt body, an insulating bolt cap is arranged at the bolt head of the bolt body, and an insulating end is arranged at the tail end of the bolt body. According to the connecting bolt for the new energy automobile battery module disclosed by the utility model, reliable assembly is realized, and meanwhile, the insulating property of the connecting bolt is ensured.

The utility model relates to the technical field of batteries, and provides a battery, which comprises a battery shell provided with a pole through hole; the battery cell is arranged in the battery shell; the battery core is electrically connected with the pole assembly, and the pole assembly is fixed on the battery shell by the first bending section and the second bending section; the plugging piece is arranged in the groove, and the plugging piece is connected with the pole assembly in a welding manner, so that a welding mark is formed on one side, deviating from the battery cell, of the plugging piece and / or the pole assembly; at least part of the insulating part is arranged between the pole assembly and the battery shell, the minimum vertical distance between the welding mark and the circumferential outer surface, facing the hole wall of the pole through hole, of the penetrating section is d, and d is larger than or equal to 0, so that the transfer distance of heat on the penetrating section in the welding process can be increased, the probability that the heat is transferred to the insulating part is reduced, and the welding quality of the battery is improved. Therefore, the insulating property and the sealing capability of the insulating part are ensured, and the safe use performance of the battery is improved.

The contact finger comprises a contact finger body and the base which is arranged on the side face of the contact finger body and used for installing a temperature sensor, and the height difference between the face, used for installing the temperature sensor, of the base and the outer edge is larger than or equal to the height of the temperature sensor. The invention further discloses a tulip contact which comprises a support, a plurality of contact fingers evenly arranged in the circumferential direction of the support and springs arranged at the two ends of the contact fingers in a sleeving mode, gaps are formed between the adjacent contact fingers, the contact fingers comprise at least one contact finger with a base, and the temperature sensors are arranged on the base and located in the gaps between the contact fingers where the temperature sensors are located and the adjacent contact fingers. The invention further discloses a system using the tulip contact. The temperature sensor can be installed by effectively utilizing the space between the contact fingers of the tulip contact, and it is ensured that the installed temperature sensor does not exceed the original contour of the tulip contact.

The invention relates to the technical field of decontamination and deicing of transmission line insulators, and discloses an intelligent decontamination and deicing device for suspension insulators of transmission lines, which solves the problem of low decontamination and deicing efficiency. The device comprises two transmission lines, each of which is fixed with a group of insulators on the outside, the tops of the two groups of insulators are provided with fixing plates, the bottoms of the fixing plates are fixed with fixing boxes, the insides of the fixing boxes are provided with rigid chains, the bottoms of the rigid chains are fixed with air outlets through a vibration box, the insides of the vibration box are provided with right and left vibration rods, the bottoms of the vibration box are provided with close rods, and the outsides of the close rods are provided with cleaning disks. The decontamination and deicing method of the transmission line insulators of the invention adopts an intelligent method, thereby improving the decontamination and deicing efficiency, reducing power outage time and economic losses, thereby preventing flashover accidents of suspension insulators caused by icing, ensuring the safe and stable operation of the power system, and reducing labor costs and risks.

The utility model discloses an anti-extrusion injection molding lithium battery shell. The anti-extrusion injection molding lithium battery shell comprises a shell and a bottom plate, the bottom plate is mounted at the bottom of the shell so as to form a mounting space for mounting a battery cell together with the shell; a partition box is mounted in the mounting space of the shell in an embedded manner; partition plates are formed in the partition box. A plurality of convex ribs used for abutting against the battery cells inserted into the mounting space are correspondingly formed on two sides of the partition plate; the partition box is made of an aluminum alloy material; the bottom plate is made of an aluminum alloy material; the bottom plate is fixed to the bottom of the partition box through screws. The shell is made of plastic with flexible performance; the shell and the partition box are integrally formed through injection molding; slots for inserting the partition plates and the bottoms of the partition boxes are formed in the bottom plate; the side edge of the slot is provided with an abutting protrusion used for abutting against and limiting the battery cell. According to the anti-extrusion injection molding lithium battery shell disclosed by the utility model, the insulating property is ensured by adopting the shell made of plastics, and meanwhile, extremely strong anti-compression protection can be provided by utilizing the embedded partition box.

The invention discloses a fuel cell system, a control method and device thereof and a medium, the fuel cell system comprises an electric pile, a dehumidifier is arranged in the electric pile, and the method comprises the following steps: when the electric pile is shut down after operation, acquiring an environment temperature and an internal temperature and internal humidity of the electric pile; according to the internal temperature and the internal humidity, based on a preset dew-point temperature detection model, the dew-point temperature in the galvanic pile is determined, and the dew-point temperature is the critical temperature at which gas in the galvanic pile is converted into liquid; if the dew-point temperature is greater than or equal to the environment temperature, controlling a dehumidifier to dehumidify the interior of the galvanic pile, and re-determining the dew-point temperature in the dehumidification process; and after the dew point temperature is smaller than the environment temperature, the dehumidifier is controlled to stop dehumidification. The insulation performance of the galvanic pile can be ensured, and the insulation efficiency is improved.

This utility model discloses a cable protection device for power engineering, belonging to the technical field of cable protection devices. It includes a cable tray body, a square slot, and a movable support assembly. The movable support assembly provides positioning for cable placement and provides movement support for cable dragging. This utility model, by setting up a cable tray body with a square slot and a movable support assembly, with the movable support assembly installed on the cable tray body, provides support for cable movement during cable laying via guide wheels. The guide wheels rotate under the friction of the cable. Compared to the sliding friction when the cable moves directly along the surface of the cable tray base plate in the traditional method, its rolling friction coefficient is much smaller than the sliding friction coefficient. Therefore, it effectively reduces cable dragging resistance and greatly reduces wear and scratches on the cable outer sheath during laying, ensuring the long-term insulation performance and lifespan of the cable.

The utility model relates to the technical field of insulating ladders, in particular to an insulating ladder placing hanger for a thermal power plant, which comprises a base, at least two upright posts vertically arranged on the base, and a hanging mechanism fixed on the upright posts, the hanging mechanism comprises at least two groups of L-shaped hooks, a hinge shaft is arranged at the tail end of the short edge of each L-shaped hook, a plurality of mounting holes are formed in the stand column at equal intervals in the height direction, and the hinge shafts penetrate through the mounting holes and are connected with locking nuts through shaft end threads; the outer surface of the long edge of the L-shaped hook is coated with an anti-skid insulating layer with the thickness larger than or equal to 5 mm. The anti-skid insulating layer is a silicone rubber and epoxy resin composite layer. According to the insulation ladder hanger, through the design of adjustment, skid resistance, monitoring and insulation, the structure is adjustable, safety and stability are achieved, insulation is reliable, operation is convenient, the hanging requirements of different ladder types are met, and use safety and efficiency are improved.

This invention relates to the field of aluminum alloy power cable technology, and proposes an aluminum alloy power cable for new energy photovoltaic power generation. The cable includes multiple aluminum alloy conductors, each covered with a cross-linked polyethylene insulation layer. An outer sheath is provided between the outer sides of the multiple cross-linked polyethylene insulation layers. It also includes a fastening trough and sealing sleeves. The fastening trough is slidably mounted on the outer sheath and has a tension abutment structure that abuts against the outer sheath. Through the tension abutment structure, the fastening trough and the corresponding area of ​​the outer sheath abut against each other. Sealing sleeves are provided on the portions of the aluminum alloy conductors extending from the outer sheath to maintain a seal between the aluminum alloy conductors and the cross-linked polyethylene insulation layers. This technical solution solves the problem in the prior art that aluminum alloy cables are inconvenient for long-distance overhead laying in new energy photovoltaic power plants.

The waterproof insulating adhesive tape comprises an adhesive tape body, a protective shell and a connecting rod, the protective shell is composed of an upper shell body and a lower shell body, the upper shell body and the lower shell body are the same in structure, the upper shell body is a semicircular hollow shell body, a semicircular through hole is formed in the center of the upper shell body, and after the upper shell body and the lower shell body are attached to each other, the upper shell body and the lower shell body are connected through the connecting rod. The two semicircular through holes can form a circular through hole, the connecting rod is inserted into the inner cylinder of the adhesive tape body and placed in the circular through hole, and the upper shell and the lower shell are detachably connected through magnetic attraction. The adhesive tape body is placed in the protective shell through the connecting rod, the protective shell can prevent external dust or other stains from adhering to the waterproof insulating layer of the adhesive tape, the waterproof insulating layer is prevented from being affected by the dust or other stains, and the side face of the adhesive tape can also be prevented from being adhered with the dust.

The present invention provides a pressure sensor which is small and has high reliability while ensuring insulation. The pressure sensor (1) comprises: a sensor body (2); a pressure sensor element (21) provided on one side of the sensor body (2); a through hole (24) formed from one side of the sensor body (2) to the other side, through which a wire (3) connected to the pressure sensor element (21) for supplying electricity passes; and an insulating layer (24a) formed on the inner wall of the through hole (24). In the through hole (24), a conductor core wire portion (32) from which the insulation coating of the wire (3) has been removed passes.

This utility model provides a battery, a battery pack, and a battery device. The battery includes a shell, a cover plate, terminals, and an insulating component. The cover plate covers the opening of the shell to form the outer shell of the battery, and has mounting holes. The terminals pass through the mounting holes, with their end faces exposed. The insulating component is located between the outer periphery of the terminals and the inner edge of the mounting holes, providing insulation for the terminals and the cover plate. The end faces form welding positions for busbar welding. Since the minimum distance d1 between the insulating components and the heat deformation temperature k of the insulating components satisfy 300 mm·℃ ≤ d1*k ≤ 1900 mm·℃, the welding position area and weld length can be guaranteed, ensuring the current carrying capacity of the terminals and busbars, while preventing the insulating components from melting under the residual heat of welding, thereby ensuring the insulation performance of the insulating components.

The utility model relates to battery technical field discloses a kind of cylindrical battery and battery pack, cylindrical battery includes: battery core;Cover plate assembly;Current collection component, connect between battery core and cover plate assembly;First current collection piece is electrically connected with pole, and the region of pole in the inside of shell and second current collection piece are arranged in the same end surface of battery core;Along axial direction, the projection of the side of pole close to battery core in second current collection piece and second current collection piece at least partially overlap, to form overlap area;Insulating layer, at least partially between second current collection piece and pole, the projection of insulating layer in the plane perpendicular to axial direction covers overlap area;The width of insulating layer along radial direction is d1, the width of overlap area along radial direction is d2, the value range of d1 / d2 satisfies:1.1≤d1 / d2≤5.The cylindrical battery provided by the utility model guarantees the insulating effect of second current collection piece and pole, avoids the short-circuit situation that pole and opposite current collection piece contact.

The utility model relates to a kind of electric vehicle charging socket heat dissipation structure, it is related to electric vehicle charging technical field, it includes shell body and heat dissipation block, the heat dissipation block is set in shell body, the heat dissipation block is provided with the first assembly hole for terminal to pass through, the heat dissipation block is provided with several radiating fins, the shell body is provided with several heat dissipation grooves for radiating fin to pass through, the heat dissipation block and radiating fin are all made of ceramic material.The application has the effect of synchronously improving the thermal conductivity and insulation of heat dissipation structure.

The application discloses a three-core UTP cable, a three-core UTP wire harness and a camera module, comprising a differential signal line pair, a ground signal line, a filler and an outer insulation layer, the outer insulation layer wrapping the differential signal line pair, the ground signal line and the filler, and the filler being located between the differential signal line pair, the ground signal line and the outer insulation layer; the differential signal line pair comprises a first differential signal line and a second differential signal line, and the first differential signal line and the second differential signal line are twisted by a double-twisted wire structure; and the differential signal line pair and the ground signal line are arranged at intervals. The application provides a more stable and reliable grounding path, can effectively conduct electrostatic charges, avoids accumulation of static electricity on the camera module, and can effectively solve the ESD failure problem of the camera module based on the UTP wire harness.

This utility model discloses a fiberglass electrical box, relating to the field of electrical box technology. It includes a box body and a connection port inside the box body. An outer door is rotatably mounted on the front end of the box body, and reinforcing ribs are provided inside the box body. An installation component is fixedly mounted on the lower end of the box body, and a positioning screw is provided inside the outer door. An adjustment structure for controlling the state of the wires is provided inside the box body. This fiberglass electrical box can limit and restrain the wires inside, preventing tangling and ensuring ease of use. The double-door structure at the front end of the box body improves security. Using fiberglass as the main material ensures the box body's insulation and corrosion resistance, while also maintaining its lightweight nature, ensuring the stability of the electrical equipment inside the box, and improving the safety of its use.

The invention discloses a multi-layer composite aluminum foil capacitor with high charge capacity density, which is applied to the technical field of capacitors, and can store more charges in a limited area by optimizing an electrode material, improving an insulating medium and innovating a structural design, thereby effectively improving the charge capacity density of the capacitor. Compared with a traditional aluminum foil capacitor formed through corrosion, the charge capacity density of the capacitor is greatly improved, the requirements for miniaturization and portability of electronic equipment can be met, high-density ultrahigh-voltage-resistant electrolytic paper and reasonably-arranged dielectric thin films are adopted for isolating positive and negative electrode aluminum foils, the insulativity between electrodes is ensured, and the service life of the capacitor is prolonged. According to the utility model, the electrolytic paper is used for preventing the short circuit phenomenon, especially the electrolytic paper has the characteristics of high density and ultrahigh voltage resistance, so that the capacitor can stably work in a high-voltage environment, the reliable operation of the capacitor is guaranteed, meanwhile, the leakage current of the capacitor can be obviously reduced, and the stable performance of the capacitor in the long-term use process is guaranteed.

The utility model relates to the technical field of heating devices, in particular to a PTC (Positive Temperature Coefficient) heating core and a PTC heater. The PTC heating core comprises: a ceramic heating sheet; the electrode plates are arranged on the two sides of the ceramic heating sheet in the thickness direction; one side, far away from the ceramic heating sheet, of each electrode sheet is provided with one insulating substrate; the insulating substrate comprises a metal plate and an insulating film, and at least one side plate surface of the metal plate is wrapped with the insulating film. The PTC heating core provided by the utility model is high in stability and high in reliability.

The utility model discloses a welding tool applied to an insulating substrate of a power device module. The welding tool comprises a heat conducting plate; the bottom plate is arranged on the heat conducting plate, the bottom plate is suitable for placing a plurality of module insulating substrates, and the plurality of module insulating substrates are placed on the bottom plate at equal intervals; and the limiting mechanism is arranged on the bottom plate and sleeves the edges of the plurality of module insulating substrates so as to be suitable for separating the plurality of module insulating substrates, so that the plurality of module insulating substrates are not easy to deviate.

The utility model relates to the technical field of plastic processing discloses an automatic expansion machine of insulating tube with automatic feeding, including main part assembly, including expansion machine body, expansion machine body one side is fixed with switch, expansion machine body one side is fixed with the material collecting box, feeding assembly, set up in expansion machine body, including feeding piece, the feeding piece includes the feeding roller. The utility model has the advantages that: a plurality of insulating tubes are placed in the special storage box in advance, the insulating tubes can be discharged from the storage box one by one to realize automatic feeding, which is convenient for operators to take, and the whole insulating tube expansion work can be carried out more efficiently and smoothly, the work efficiency and the convenience of operation are effectively improved, and the surface of the insulating tube can be prevented from being contaminated by dust, impurities and other foreign matters, the quality of the insulating tube is guaranteed, the insulation performance is maintained, and the risk of potential safety hazards caused by subsequent wrapping wire cores is eliminated.

The invention discloses the technical field of low-voltage wire ends, and particularly relates to a low-voltage wire end insulation device which comprises a connecting mechanism, a supporting block and a clamping piece arranged on the supporting block, and the clamping piece is connected with the connecting mechanism in an inserted mode; the connecting mechanism is made of insulating materials, the supporting block comprises an end face and a first side face, the end face and the first side face are provided with first grooves at the same time, the end face of the supporting block is connected with an upper cover, a through hole is formed in the center of the upper cover, the clamping piece comprises a pressing block and a wire pressing plate arranged on the pressing block, and the pressing block is connected with the clamping piece. According to the invention, the cylindrical structure design is adopted, the device is provided with a cylindrical structure device suitable for insulation wrapping, the wire can be stably clamped, and the firmness and reliability of insulation wrapping are ensured. Meanwhile, the first space can adapt to lead heads of different sizes, is suitable for most low-voltage leads, can completely wrap the low-voltage lead heads, and guarantees the insulation effect.

The invention relates to the technical field of wires and cables, and discloses an irradiation crosslinked polyethylene wire and cable which comprises a reinforcing layer and a splicing assembly, a plurality of cable bodies are installed in the reinforcing layer, an insulating layer is arranged outside the reinforcing layer, a waterproof layer is arranged outside the insulating layer, a shielding layer is arranged outside the waterproof layer, and the splicing assembly is arranged on the shielding layer. An outer protection layer is arranged outside the shielding layer; the plurality of cable bodies are installed in the reinforcing layer, structural support is provided for the cable, the tensile resistance and the extrusion resistance of the cable are enhanced, the mechanical performance stability of the cable in a complex environment is ensured, the cable is sequentially wrapped by the insulating layer, the waterproof layer, the shielding layer and the outer protective layer, the layers are clear in division of labor, and the service life of the cable is prolonged. The insulation, waterproof, anti-electromagnetic interference, external damage prevention and other performances of the cable are jointly guaranteed, and the comprehensive protection capability of the cable is improved.

The invention relates to the technical field of cable materials, and particularly discloses a heat-conducting insulated cable material and a preparation method thereof. The preparation method of the heat-conducting insulated cable material comprises the following steps: dispersing hexagonal boron nitride in water, adding a sulfuric acid solution and a hydrogen peroxide solution, stirring in a constant-temperature water bath, cooling, centrifuging, drying, adding tetraisopropyl titanate, ethylene glycol, an antioxidant and terephthalic acid, stirring in a constant-temperature oil bath, reducing the system pressure and stirring, cooling in a vacuum environment, and obtaining the heat-conducting insulated cable material. The activated polyethylene glycol terephthalate is obtained; the preparation method comprises the following steps: adding spherical boron nitride and dopamine hydrochloride into a Tris-HCl buffer solution for ultrasonic treatment, adding amino-terminated polyamidoamine for ultrasonic treatment, centrifuging, washing and drying to obtain activated boron nitride; mixing the activated polyethylene glycol terephthalate and the activated boron nitride, stirring, extruding and cooling to obtain the heat-conducting insulated cable material. The cable material is good in thermal conductivity and insulativity, and the preparation method is simple.

The utility model discloses a heating tube sealing structure and baking tray, aim at solving the existing heating tube seal not thoroughly, the assembly stability is poor and so on. The structure contains heating disc, its inside is equipped with magnesium oxide filler, and the first, second heating tube cold needle is projected with respectively two ends, and there is the heating wire that penetrates heating disc and is wrapped by magnesium oxide filler between two cold needles. In addition, still be equipped with first conducting rod subassembly and second conducting rod subassembly, two respectively with the both ends sealed connection of heating disc. This design through both ends conducting rod subassembly and the close seal of heating disc, can bear the gas expansion pressure in pipe, prevent gas leakage, maintain the pressure balance in pipe, enhance the sealing reliability, effectively solve the sealing problem caused by gas expansion. Meanwhile, the structure reduces the dependence on the size precision of single component, even if the size error exists in component processing, can realize good sealing connection, reduces the unstable situation of assembly caused by size deviation, improves the stability and success rate of assembly.

The electromagnetic relay of the present invention comprises a fixed contact, a movable contact piece, a drive shaft and a movable iron core. The movable contact piece comprises a movable contact arranged opposite to the fixed contact, and is movable in a first direction in contact with the fixed contact and in a second direction away from the fixed contact. The drive shaft extends in a direction along the first direction and the second direction, and is connected to the movable contact piece. The movable iron core is connected to the drive shaft so as to be movable as a whole on the first direction side or the second direction side of the movable contact piece. The drive shaft comprises a first contact portion in contact with the movable contact piece, a second contact portion in contact with the movable iron core, and an insulating portion made of an insulating material and insulating the movable contact piece from the movable iron core.

The application provides a crosslinked polyethylene insulated cable and a preparation process thereof, and belongs to the technical field of cables, and comprises the following steps: step S1, preparing UiO-66-F4 masterbatch; step S2, preparing hexagonal boron nitride masterbatch and nano-alumina masterbatch; step S3, preparing insulation granules; step S4, performing three-layer co-extrusion on a copper core conductor to form a conductor shielding layer / insulation layer / insulation shielding layer, and then performing CV crosslinking, cooling, degassing, and then coating a metal braided shielding layer and an outer sheath to obtain the crosslinked polyethylene insulated cable. The application can improve the DC breakdown strength and long-term insulation stability of the crosslinked polyethylene insulated cable.

The invention discloses a power transmission structure based on viaduct power transmission and heat conduction oil energy recovery. The power transmission structure comprises a transmission system, a cooling system, a recovery system and a lightning protection system. The conveying system comprises a power transmission line, an elevated support and a compartment body. The power transmission line is positioned in the compartment body and is provided with a plurality of steel-cored aluminum wires; the carriage body is fixed at the upper end of the supporting part; the cooling system comprises a heat-conducting oil pipe matched with the power transmission line, an oil pump located in the heat-conducting oil pipe and a cooling water pipe used for cooling the heat-conducting oil pipe, and the steel-cored aluminum wire is located in the heat-conducting oil pipe; the recovery system comprises a steam turbine and a generator; the lightning protection system is provided with a lightning rod and a lightning protection steel cable. The transmission system and the cooling system are arranged, and the power transmission line is soaked in the heat conduction oil pipe, so that heat emitted by the power transmission line in the working process can be quickly transmitted to the cooling water pipe to recover energy, and the situation that the temperature of the steel-cored aluminum wire is too high is avoided; and the stability and overload capacity of the power transmission structure based on viaduct power transmission and heat conduction oil energy recovery are ensured.