94results about How to "Guaranteed insulation performance" patented technology

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.

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.

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 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.

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 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 utility model provides an insulating framework, a motor stator assembly and a motor, and the insulating framework comprises a first insulating baffle plate and a second insulating baffle plate which are respectively disposed on the end surfaces of two opposite sides of a stator iron core, and a plurality of insulating support plates disposed between the first insulating baffle plate and the second insulating baffle plate. The first insulation baffle is provided with first tooth portion blocking pieces corresponding to the end face positions of all stator teeth of the stator core, the second insulation baffle is provided with second tooth portion blocking pieces corresponding to the end face positions of all the stator teeth of the stator core, and an insulation supporting plate is supported between at least part of the first tooth portion blocking pieces and the second tooth portion blocking pieces. And the non-deformability of the insulating support plate is higher than that of the first insulating baffle plate and the second insulating baffle plate. According to the utility model, the generation of iron core tooth part stress and the reduction of tooth part sheet layer spacing caused by winding of the winding are avoided, the insulation performance between the tooth part sheet layers is ensured, and the magnetic performance after the stator winding is wound on the stator iron core is ensured to be at a better level.

The utility model provides a multi-level heat preservation electronic wire harness, which belongs to the technical field of electronic wire harnesses and comprises a wire harness body and connectors, the left end and the right end of the wire harness body are electrically connected with the connectors, the wire harness body comprises a core wire, a heat preservation layer, an anti-freezing layer, a heat insulation layer and an insulation layer, the core wire is located on the innermost side of the wire harness body, and the heat preservation layer is wrapped on the core wire. The outer side surface of the heat preservation layer is coated with an anti-freezing layer. According to the utility model, the insulating layer is arranged, the insulating layer is made of the fluorosilicone rubber material, the fluorosilicone rubber has a wider temperature-resistant range, can be usually used in a temperature range of-50 DEG C to 250 DEG C, and has excellent heat resistance and oxidation resistance, and the electrical insulation property of the fluorosilicone rubber is equivalent to that of silicone rubber, so that the insulating property of the fluorosilicone rubber is ensured; however, due to the enhanced chemical corrosion resistance, the fluorosilicone rubber is possibly more suitable for use in some special environments, and the fluorosilicone rubber cannot be hardened at low temperature, so that the flexibility of the wire harness body 1 is ensured, and the service life of the wire harness body is ensured.

The utility model discloses a multi-nozzle precision control electrostatic spinning machine, and relates to the technical field of electrostatic spinning machines. The spinning machine comprises a spinning machine shell, a moving mechanism and a wind-up roller are installed in an inner cavity of the spinning machine shell, the moving mechanism is provided with a moving plate, an advancing mechanism is installed on the moving plate, a push plate is installed on the advancing mechanism, a support is installed on the moving plate, a plurality of spray heads are installed on the support, and the spray heads are connected with the wind-up roller. A placing plate is mounted on the moving plate, a plurality of material conveying pieces are arranged on the placing plate, and a fixing mechanism is mounted at the top of the placing plate and located above the material conveying pieces. The insulating ceramic partition plates on the support are made of aluminum oxide ceramic materials and are distributed between every two nozzles at equal intervals, the adjacent nozzles are physically isolated, direct coupling of electric field lines between the adjacent nozzles can be blocked through the high insulation characteristic of insulating ceramics, and independent fusiform electric field distribution is formed by each nozzle.

The utility model discloses a capacitor busbar insulation sealing assembly, which comprises a packaging shell for packaging a capacitor body, a sealing block and an insulation sleeve, the side surface of the packaging shell is provided with a lead-out hole for a busbar terminal of the capacitor body to penetrate out, the sealing block is embedded into the inner side of the packaging shell corresponding to the lead-out hole, and the insulation sleeve is arranged in the packaging shell. The sealing block is provided with a sealing opening for a busbar terminal of the capacitor body to pass through. And the insulating sleeve is of a U-shaped structure and is sleeved at one end, penetrating out of the packaging shell, of the busbar terminal of the capacitor body. When the capacitor is used, the capacitor body can be installed in the packaging shell in a sealed mode, and the sealing block is sleeved at the leading-out position of the busbar terminal and embedded into the inner side of the leading-out hole so that the leading-out position can keep good sealing performance. Meanwhile, the insulating sleeve is sleeved at one end, penetrating out of the packaging shell, of the busbar terminal of the capacitor body, so that the insulating effect of the adjacent busbar terminals can be ensured; and the use is safer and more stable.

The utility model provides a kind of track inertial navigation measurement system, including track detection car, two wireless digital display displacement meters are symmetrically arranged and are installed in the downside of track detection car horizontal axis by connecting seat, and the mobile measuring end of one wireless digital display displacement meter is slidably connected to the downside of track detection car by sliding piece, the bottom of sliding piece is connected with first rolling piece, and the mobile measuring end of another wireless digital display displacement meter is connected with second rolling piece, and first rolling piece and second rolling piece are respectively rollingly connected to the inside standard track gauge of left and right tracks, and automatic leveling base is connected to the upper side of middle part of track detection car by fixing part and is built-in with multi-axis sensor.The utility model can directly measure track gauge value by two wireless digital display displacement meters, three-dimensional coordinate measurement component can obtain the three-dimensional coordinates of the center of automatic leveling base, then according to the azimuth angle, inclination and track gauge value measured by multi-axis sensor, the three-dimensional coordinate values of left and right tracks are calculated, so that the space attitude of track can be quickly measured for the initial adjustment of track.

The invention relates to the technical field of motors, and discloses a motor shaft insulation coating processing method, a fixing tool and a spraying device.The motor shaft insulation coating processing method comprises pretreatment and shielding, dynamic spraying, post-treatment and a second base, a spraying cavity is formed in the second base in the circumferential direction, and the spraying cavity can rotate; and the clamping piece is arranged in the spraying cavity, and the clamping piece fixes and rotates the motor shaft along the axis of the motor shaft. The clamping piece is arranged to fix the motor shaft, the axial parallelism of the motor shaft and the second base is improved, when the spraying cavity rotates and ascends and descends and a spraying opening of the spraying gun ascends and descends, the motor shaft can be still relative to the second base, the position precision of the motor shaft and the second base is guaranteed, and then the distance between the motor shaft and the spraying gun is kept stable; therefore, the thickness uniformity of the insulating coating on the surface is ensured, the insulating effect is ensured, a plurality of motor shafts are sequentially sprayed, and the spraying efficiency is improved.

The invention relates to a miniature circuit breaker with multiple wiring modes, which relates to the technical field of intelligent power grids and comprises a shell, an electrical element arranged in the shell and a control handle rotationally arranged on the front side of the shell. A first wiring port is formed in the front portion of the top face of the shell, a second wiring port is formed in the back side of the shell, and a receding notch communicated with the second wiring port is formed in the rear portion of the top face. A conducting strip of which one end is connected with the electrical element is fixedly arranged in the shell, and a binding post positioned in the first wiring port and an elastic clamping piece positioned in the second wiring port are fixedly arranged at the other end of the conducting strip at the same time; a connecting plate is rotationally connected to the side wall of the receding notch, and a protection plate is vertically and fixedly arranged on the side face edge, away from the shell, of the connecting plate; a locking piece is arranged outside the shell; in the application, the connection plate can be flexibly switched to two protection states to correspondingly block the idle first wiring port or the idle second wiring port, so that dust is prevented from entering the shell and being attached to core electrical components such as the conducting strip and the binding post.

This invention relates to the field of photovoltaic cable manufacturing technology, and more particularly to a solar photovoltaic cable and its manufacturing process. The process includes: processing a tin-plated cable core according to a pre-process; extruding the tin-plated cable core through an extruder with preset extrusion parameters to perform a first functional layer extrusion; pre-cooling the extruded cable; determining a second preset pulling speed for the second functional layer extrusion process based on a first excess value when the functionality is deemed unqualified, and further determining a second preset pulling speed based on a first excess value when the functionality is deemed unqualified after the pre-cooling stage; and adjusting the cooling temperature based on a second excess value when the cooling is deemed unqualified, and based on a second excess value when the cooling is deemed unqualified, after the cooling is deemed unqualified. This invention can comprehensively assess the manufacturing quality of photovoltaic cables from multiple dimensions and deeply refine it from a single dimension, and automatically feed back and adjust the parameters for manufacturing photovoltaic cables to improve the stability of the performance and the stability of the manufacturing process of photovoltaic cables.

The application discloses a light high-strength overhead insulated cable and relates to the technical field of overhead insulated cables, which comprises an overhead insulated cable assembly, and a light high-strength assembly is arranged on the outer surface of the overhead insulated cable assembly; the light high-strength assembly comprises a plurality of first support frames, and first tripods are fixedly connected between the opposite outer surfaces of the plurality of first support frames; the light high-strength overhead insulated cable is characterized in that the first support frame, the second support frame, the first tripod, the second tripod and the third tripod in the light high-strength assembly all adopt a frame type hollow structure, the material consumption and the overall weight are reduced, the geometric non-deformability of the triangle is utilized to disperse the load, local stress concentration is avoided, the arch-shaped frame adopts an arc-shaped design, the impact of falling objects, the extrusion of strong winds and other external forces can be transmitted to the support system along the arc-shaped surface, and the impact resistance is further improved.

Provided is a method for manufacturing a circuit connection structure, including the steps of: interposing a circuit connection adhesive film containing conductive particles between a first circuit component having a first electrode and a second circuit component having a second electrode, and thermally compressing the first circuit component and the second circuit component to electrically connect the first electrode and the second electrode to each other, the circuit connection adhesive film including a first adhesive layer containing conductive particles and a first thermosetting resin component, and a second adhesive layer provided on the first adhesive layer and containing a second thermosetting resin component, the circuit connection adhesive film having a difference (Tmax-T1) between a reaction start temperature T1 and a reaction peak temperature Tmax obtained from a differential scanning calorimetry curve of 20°C or less.

A terminal block structure (1) is provided with: a first terminal block (3) which is a box-type insulating resin that accommodates a conductive first terminal (11); a second terminal block (5) which is a box-type insulating resin that accommodates a conductive second terminal (13), and which is superimposed on the first terminal block (3); a conductive part (9) which is held by the second terminal base (5), is provided between the first terminal (11) and the second terminal (13), and electrically connects the first terminal (11) and the second terminal (13); and a connecting part (7) which presses the first terminal (11) and the second terminal (13) to the conductive part (9) so as to make the first terminal (11) and the second terminal (13) contact with each other, and at least one of the first terminal seat (3) and the second terminal seat (5) is provided with a fire-resistant insulating tape (61) on the surface of the inner side of the box.

The utility model discloses a kind of electric power transformers with insulation protective structure, including transformer body, the transformer body output is equipped with insulation protective sleeve, the insulation protective sleeve includes sleeve body, the side above of opening and closing gap is equipped with first skirt, the side above of opening and closing gap is equipped with second skirt, the middle part of mutually close side of first skirt and second skirt is equipped with mounting groove, sealing strip is equipped in the mounting groove, the first skirt and the upper end of second skirt are equipped with the first through-hole of multiple equidistance arrangement, second through-hole matched with first through-hole is opened in the sealing strip, the first through-hole and the second through-hole inside are inserted with connecting component. This kind of structure is simple, easy to install, sealing effect is good, with good insulation effect, can effectively avoid dust and rainwater easily from gap into insulation protective cover inside, guarantee the protection effect and insulation performance of insulation shield.

The utility model provides a kind of welding cooling device of stator bar, including clamp and air cooling clamping monomer, two air cooling clamping monomers are placed axially symmetrical and constitute air cooling clamp, two ends of air cooling clamp are clamped by clamp, the inside of air cooling clamping monomer is equipped with several ventilation grooves and two horizontal air ducts, and the side of air cooling clamping monomer is equipped with first air inlet, second air inlet and stator bar clamping groove.The utility model has the beneficial effects that (1) dry cooling eliminates the risk of damp, guarantees insulation performance;(2) multi-channel airflow structure realizes uniform and efficient heat dissipation;(3) double air inlet linkage heat dissipation.

The utility model relates to a heat dissipation insulating transformer in the field of transformers, which comprises a base, an iron core, a coil and a top plate, a framework is arranged on the outer side of the iron core, the coil is wound on the surface of the framework, the framework is made of ceramics, an insulating shell is arranged on the base, the insulating shell is sleeved on the outer side of the coil, and a bottom cover and a top cover are respectively arranged at two ends of the insulating shell. The insulating shell is filled with epoxy resin, the two ends of the framework make contact with the bottom cover and the top cover respectively, the side walls of the bottom cover and the top cover are connected with a heat dissipation assembly, the heat dissipation assembly comprises a heat conduction plate, heat dissipation fins and a heat dissipation fan, the two ends of the heat conduction plate are connected with the bottom cover and the top cover respectively, and the heat dissipation fan is installed on the surface of the heat conduction plate through a support. A heat dissipation air channel is formed between the heat dissipation fan and the heat conduction plate, the heat dissipation fins are arranged in the heat dissipation air channel, a high-heat-conduction ceramic framework is adopted, and on the basis that the insulation performance is guaranteed, the ceramic framework rapidly conducts heat generated when the coil runs to the bottom cover and the top cover which are in contact with the two ends.

The utility model relates to the field of low voltage electrical apparatus, concretely relates to a casing structure of switch device, it includes the shell, the shell includes the first space for containing the magnetism component of electromagnetic system for accommodating, the second space for containing the switch module that is driven to close and disconnect under electromagnetic system and the third space for containing the control system that is connected with electromagnetic system at least, first space and second space are along third direction d3 and set side by side, and second space and third space are along first direction d1 and set side by side, and first direction d1 and third direction d3 are perpendicular to each other, the casing structure of switch device, and the internal space division is reasonable compact, is favorable to reduce the overall specification size of switch device.

The invention relates to a discharge counter, in particular to a discharge counter for a direct-current valve lightning arrester and a counting method. The technical problem that safe operation of a direct-current valve lightning arrester is easily affected when internal parts of an existing discharge counting device break down is mainly solved. The discharge counter comprises an inductive charging module, an energy storage capacitor, an emission control circuit and an optical fiber emitter. The induction end of the induction type charging module is arranged on the peripheral side of the direct current valve lightning arrester, and the output high end and the output low end are correspondingly connected to the two ends of the energy storage capacitor. An input high end and an input low end of the emission control circuit are respectively connected to two ends of the energy storage capacitor, and an output high end and an output low end of the emission control circuit are respectively connected to an input high end and an input low end of the optical fiber emitter; and the output end of the optical fiber transmitter is connected with external valve base equipment. According to the invention, the insulation performance of a traditional counter can be maintained, and the problem that the safety operation of the direct current valve lightning arrester and the whole converter valve is endangered due to the fault of the discharge counter can be solved.

The utility model relates to an iron core clamping piece system of a three-phase five-column iron core reactor. The iron core clamping piece system comprises a core penetrating screw rod, a core column pulling screw rod, an end pulling screw rod, an upper clamping piece, a lower clamping piece, an upper cross beam, a lower cross beam, a main pressing beam, an auxiliary pressing beam and a main foot pad, wherein the two ends of the core penetrating screw rod penetrate through the limb plates of the upper clamping piece and the lower clamping piece, the two ends of the core penetrating screw rod are connected with the limb plates in an insulating mode, the core column pulling screw rod is electrically connected with the upper cross beam and the lower cross beam, and the two ends of the end pulling screw rod are connected with the corresponding upper clamping piece and the corresponding lower clamping piece respectively. One end of the end pulling screw rod is in insulated connection with the upper clamping piece, and the other end of the end pulling screw rod is electrically connected with the lower clamping piece, or one end of the end pulling screw rod is electrically connected with the upper clamping piece, and the other end of the end pulling screw rod is in insulated connection with the lower clamping piece. The iron core clamping piece system of the three-phase five-column iron core electric reactor can restrain vibration of the electric reactor and improve operation reliability of the electric reactor.

This application discloses a relay, including a contact cavity, a moving contact assembly, and a fixed magnetic conductive assembly. The contact cavity has a contact chamber; at least a portion of the moving contact assembly is movably disposed within the contact chamber; the fixed magnetic conductive assembly is mounted in the contact cavity and includes an insulating member and a first fixed magnetic conductive member located on the same side as the moving contact assembly. The insulating member is connected to the first fixed magnetic conductive member and isolates the contact cavity from the first fixed magnetic conductive member. The first fixed magnetic conductive member is configured to generate a short-circuit-resistant attractive force based on the magnetic field generated when the moving contact assembly is energized.

The invention discloses a large-diameter high-temperature steam pipeline heat insulation support, belongs to the technical field of pipeline supports, and aims to solve the problems that the heat insulation function of the support loses efficacy due to the fact that a hard heat insulation block is prone to cracking, breaking and even falling off after being used for a long time, and meanwhile the stress bearing position of a heat insulation material is fixed. The steam pipeline comprises a steam pipeline body, a heat preservation assembly is arranged on the outer wall of the steam pipeline body, a plurality of concrete bases are arranged on one side of the steam pipeline body, rolling assemblies are arranged at the tops of the concrete bases, and two supporting frames are arranged at the tops of the rolling assemblies in parallel; the efficient heat insulation nanometer aerogel heat preservation sleeve is conveniently and stably fixed outside the steam pipeline, heat of the pipeline is effectively prevented from being conducted and dissipated through a support, the problems that a traditional hard heat insulation block is prone to damage, and the heat insulation function is prone to losing efficacy are solved, and the energy-saving effect and the energy efficiency stability of long-distance steam conveying are guaranteed.

The invention relates to the technical field of protection pipe machining, in particular to MPP cable protection pipe production and machining equipment and a using method, the MPP cable protection pipe production and machining equipment comprises an in-pipe self-adaptive grinding unit, an outer wall magnetic control positioning unit and a pipe supporting and driving unit, and a central control unit can be further configured to be used for linkage regulation and control of all the units. According to the MPP cable protection pipe production and machining equipment and the using method, the thickness difference of the pipe wall can be automatically recognized, and self-adaptive grinding is achieved, dynamic balance is formed by means of magnetic coupling acting force and pre-tightening force of a mechanical elastic pre-tightening assembly, when the pipe wall thickness is increased, magnetic coupling magnetic force is weakened, the pre-tightening force automatically pushes a grinding machine to stretch out and draw back to be attached to the pipe wall side, and the grinding effect is achieved. When the wall thickness of the pipe is reduced, the magnetic coupling magnetic force is enhanced, the grinding machine is driven to reset reversely, the matched grinding attaching force is kept all the time, the requirements for different wall thicknesses can be precisely met without manual intervention, the problems that existing equipment is poor in grinding adaptability and needs manual adjustment are thoroughly solved, and the grinding precision and efficiency are greatly improved.

This invention relates to the field of cable material technology, and in particular to an antimicrobial adhesion underwater cable sheath material and its preparation and modification process. It comprises the following components in parts by weight: 60-65 parts LLDPE; 10-15 parts PP; 8-12 parts PVDF; 8-12 parts EVA; 0.3-0.5 parts mixed antioxidant; and 0.1-0.3 parts mixed lubricant. This invention utilizes a quaternary blend system of LLDPE, PP, low molecular weight PVDF, and EVA, combined with a highly efficient antioxidant and lubricant, to give the sheath material excellent water resistance, aging resistance, and antimicrobial adhesion properties. After activation by 360° annular plasma under constant pressure, a hydrophilic hydration layer of HEMA and NVP is grafted onto the sheath surface, which effectively inhibits microbial adhesion and biofilm formation, significantly extending the service life of underwater cables.

The invention relates to the technical field of aerogel materials, in particular to a high-thickness glass fiber-carbon fiber composite silica aerogel felt and a preparation method thereof. According to the method provided by the invention, tetraethoxysilane is taken as a silicon source, heptaisobutyltrisilanol polyhedral oligomeric silsesquioxane (POSS) is taken as a matrix modifier, glass fibers are modified by a KH560 silane coupling agent, and carbon fibers are subjected to oxidation grafting treatment, so that strong interface bonding of the fibers and a SiO2 / POSS matrix is realized; and the silica aerogel felt with ultralow heat conductivity, high mechanical strength and excellent temperature resistance is prepared through the processes of sol preparation, gradient gelation, layered laying, felt body forming, drying post-treatment and the like. The problems that a traditional aerogel felt is low in mechanical strength, insufficient in temperature resistance, weak in matrix and fiber interface bonding force and prone to structure cracking are solved, the heat conductivity coefficient of the prepared silica aerogel felt is smaller than or equal to 0.025 W / (m.K), and the tensile strength is larger than or equal to 10 MPa.

The invention relates to the technical field of charging devices of electric vehicles, in particular to intelligent charging equipment for charging new energy automobiles, which comprises a shell, a power module, two cables and two charging guns, the power module is mounted in the shell, the two charging guns are arranged at one ends of the two cables respectively, and the two charging guns are connected with the power module. The ends, not provided with the charging guns, of the two cables are electrically connected with the power module. According to the invention, the intelligent charging equipment is installed on the wall or the ceiling plate, so that the problem that the intelligent charging equipment is easily damaged due to collision of a vehicle due to floor type installation of the intelligent charging equipment is avoided, and the safety of the intelligent charging equipment is ensured; the cable is wound in the intelligent charging equipment, the cable is prevented from making contact with the ground and making friction with the ground, meanwhile, the torque adjusting assembly is arranged in the intelligent charging equipment, the cable is prevented from making contact with the ground due to too many cable outgoing lines, and the integrity and insulativity of the outer surface of the cable are guaranteed.