89results about How to "Simple insulation structure" patented technology

One ozone concentrating chamber is provided therein with a part of a cooling temperature range where ozone can be selectively condensed or an oxygen gas can be selectively removed by transmission from an ozonized oxygen gas, and a part of a temperature range where condensed ozone can be vaporized, and condensed ozone is vaporized by moving condensed ozone with flow of a fluid or by gravitation to the part where condensed ozone can be vaporized, whereby the ozonized oxygen gas can be increased in concentration. Such a constitution is provided that a particle material 13 for condensation and vaporization filled in the ozone concentrating chambers 11 and 12 has a spherical shape of a special shape with multifaceted planes on side surfaces, or an oxygen transmission membrane 130 capable of selectively transmitting an oxygen gas in an ozone gas is provided.

A wafer holder is provided having high rigidity and an enhanced heat-insulating effect that allow positional accuracy and heating uniformity to be improved, a chip to be rapidly heated and cooled, and the manufacturing cost to be reduced, and a wafer prober apparatus on which the wafer holder is mounted. The wafer holder of the present invention includes a chuck top for mounting a wafer, a support member for supporting the chuck top, and a stand for supporting the support member. The chuck top has a thermal conductivity K1 and a Young's modulus Y1; the support member has a thermal conductivity K2 and a Young's modulus Y2; and the stand has a thermal conductivity K3 and a Young's modulus Y3. K1>K2 and K1>K3; and Y3>Y1 and Y3>Y2.

An engine-mounted mechanical fuel pump for an internal combustion engine contributes to a stable operation of the engine, a reduction in the weight of the engine, and a reduction in the pump drive loss. The engine includes a cylinder head provided with intake ports and exhaust ports therein, and fuel injection valves for injecting fuel into the inside of a tubular intake air routing assembly connected to the intake ports. A fuel pump is provided on the rear side of a cylinder block and on the upper side of a crankcase, in an arrangement where the intake ports are formed to extend rearwardly and the exhaust ports are formed to extend forwardly from the cylinder head. In one embodiment, the fuel pump is provided on the front side of the cylinder block, where the intake ports are formed to extend forwardly and the exhaust ports are formed to extend rearwardly.

The invention provides light-weight heat-insulating concrete. One cubic meter of the concrete is prepared by uniformly stirring following raw materials: 350-410 kg of cement, 12-30 kg of micro silicon powder, 32-50 kg of coal ash, 172-220 kg of sand, 220-300 kg of ceramic sand, 274-335 kg of haydite, 5-10 kg of additives and 135-145 kg of water. The invention also provides a preparation method of the light-weight heat-insulating concrete. By utilization of the haydite and a cementing formula, the concrete has good thermal insulation performances itself. The concrete can be used as building outer walls so as to cancel an independent thermal insulation layer, thus simplifying thermal insulation structures of the building outer walls, shortening the project duration, and reducing the cost.

The invention provides a light-operated modularization intelligent vacuum switch with the phase-selecting function, comprising an intelligent phase-selecting controller low-potential unit, a high-potential unit, a power driving unit, a multi-way energy-acquiring operating power system, a permanent magnet actuating mechanism, a vacuum arc extinguishing chamber, an outer insulating system, and the like. A DSP signal processor with high performance and flexible control technique are adopted to rapidly and accurately judge the optimum switching phase of the switch for reliable operation; an optical control interface is adopted to realize high-pressure and low-pressure isolation, simplify the insulating structure and ensure strong anti-jamming ability; a novel permanent magnet actuating mechanism is adopted to ensure simple structure, flexible control and high reliability; and a novel reliable power source scheme with a multi-way energy-acquiring operating power system for acquiring energy by current, voltage and low potential is adopted. According to the requirement, series-connected and parallel-connected building block combination can be carried out on the light-operated modularization intelligent vacuum switch with the phase-selecting switch so as to realize the intelligent vacuum switch with higher voltage grade.

The digitalized electronic meter system with each voltage current mutual-inductor output connect with the corresponding electronic meter module and linking with the input end of the electro-optical conversion module, whose output links an optical fiber, all of which are combined and through an optical cable connected with the electro-optical conversion and signal treatment module, with the electro-optical and signal treatment module converting the optical signal into the digital electro signal, and its output end connects with the digitalized centralized electro-optical meter system. The optical cable replaces the electric cable as the secondary signal transmission circuit, realizes the digitalized accuracy meter of the high pressure electric energy, effectively solves the current complex error big difficulty, greatly simplifies the secondary signal transmission circuit and greatly alleviates the on-site construction working load.

A cable assembly (100) includes an interior PCB (13) with a number of conductive pads (132), a cable (2) and an insulative holding device (25). The cable (2) includes a number of conductors (21), a conductive sheath (22) shrouding the conductors (21) and an insulative sheath (23) shrouding the conductive sheath (22). Each conductor (22) has a soldering tail (24) extending to the outside of the insulative sheath (23) and soldering to the conductive pad (132). The insulative holding device (25) encloses the insulative sheath (22) and the conductors (21).

The invention discloses a multi-electrode rotary spark gap switch used for a high-voltage pulse powder supply, and belongs to the technical field of pulse power. The switch comprises a stator (8), a rotor (7), a rotor needle electrode (9), a stator needle electrode (10) and a drive motor (1). The stator (8) and the rotor (7) are respectively provided with 2N layers of the needle electrodes, each layer of the stator (8) is provided with M stator needle electrodes (10), the stator needle electrodes are connected with a lead to keep the same electric potential, one rotor needle electrode (9) is arranged at each layer of the rotor (7), the rotor needle electrodes of two adjacent layers keep a 180-degree mechanical angle, and are directly connected with a lead to keep the same electric potential, and the switch is turned on when the motor drives the rotor to rotate until the rotor needle electrode and the stator needle electrode are opposite. The switch has the advantages of high switching voltage, high switching power and high frequency of repetitive work, fast switching speed less than 10ns, simple insulation structure, long service life, convenient maintenance, low cost, etc.

The invention relates to a 66kV burst short circuit transformer. A three-phase three-limb iron core is arranged in a lower fuel-saving box of the transformer. The iron core is sleeved with a low-voltage coil and a high-voltage coil. Wires are led out from the head end of the high-voltage coil and the head end and tail end of the low-voltage coil in the axial direction, and are led into a sleeve through cables. The high-voltage coil is of a fully continuous structure, wherein every two of three composite conductors are wound in parallel in the radial direction. A subsidiary pressing plate on the high voltage side and a subsidiary pressing plate on the low voltage side are respectively of a fan shape as a whole, and the fan-shaped subsidiary pressing plate on the high voltage side and the fan-shaped subsidiary pressing plate on the low voltage side share the same center of a circle and are placed in a symmetric mode. The subsidiary pressing plates and a pressing plate are provided with positioning holes and are connected through an insulating screw rod. According to the 66kV burst short circuit transformer, the insulation structures of the coils are optimized, ampere-turn balance of the coils is improved, horizontal eddy current loss of the coils is lowered on the premise that insulation reliability is guaranteed, the stress level of the coils is lowered substantially at the time of a short circuit, the capability in resistance to the short circuit of a product is enhanced, and a basis is provided for further optimization of a product design.

The invention discloses a digitalized optical fiber voltage transformer which comprises a voltage sensor positioned at the top of a vehicle, an A / D (Analog / Digital) converter, a control processing unit, a power supply module and a signal receiving unit positioned in the vehicle, wherein the control processing unit is connected with the signal receiving unit through a communication optical fiber; the voltage sensor is used for acquiring a signal from a power grid, is a voltage division type voltage sensor and is formed by connecting high-voltage impedance with low-voltage impedance in series; the A / D converter is connected with the low-voltage resistance in parallel; the input end of a power supply is connected with the low-voltage resistance in parallel; and the signal receiving unit receives an optical signal transmitted by the communication optical fiber and converts the optical signal into a voltage signal. According to the digitalized optical fiber voltage transformer disclosed by the invention, due to the adoption of the voltage division type voltage sensor, no external power supply and battery are needed; the output end of the digitalized optical fiber voltage transformer is in communicated connection with a vehicle-mounted device through an optical fiber, strong anti-jamming capability is obtained and complete electrical isolation can be realized. The digitalized optical fiber voltage transformer can replace an original traditional transformer for a locomotive and is especially suitable for electric locomotives (including urban rail locomotives).

The invention discloses an integrated roof water prevention and heat preservation structure which comprises overhead plates laid on a roof base face and water prevention and heat preservation materials laid on the overhead plates. The joints between the overhead plates are in sealing connection with the junctions of the overhead plates and a protruding roof structure. The invention further discloses a construction method of the integrated roof water prevention and heat preservation structure. Through the organic combination of the overhead plates, steam discharge pipe and the water prevention and heat preservation materials, the heat preservation structure and the waterproof structure can be combined into a whole, floorslab stress damage is overcome, the floor base layer is kept dry, integrality is strong, durability is high, the roof structure is simplified, building cost is low, and construction efficiency is high.

A battery pack includes a housing and electrochemical cells disposed in the housing. The housing includes a container and a lid that closes an open end of the container. The container has a base, an outer wall the surrounds the base, and a first and a second inner wall disposed inside the outer wall. The first inner wall extends between, and is fixed to, a first portion and a third portion of the outer wall, and is spaced apart from a second portion and a fourth portion of the outer wall. The second inner wall extends between the first portion and the third portion, and is disposed between the first inner wall and the fourth portion. The second inner wall is movable relative to the outer wall such that spacing of the second inner wall from the first inner wall can be changed.

The invention discloses a suppression method for partial discharge at a flange of a GIS / GIL supporting insulator. According to the invention, reduction of electric field intensity in a flange-side local air gap area is taken as an optimization target, and optimal space distribution of flange-side insulation internal dielectric parameters of supporting insulator is solved by using a variable density or level set algorithm; and extracting the geometric contour of a high-dielectric region by using an image segmentation algorithm, and acquiring a CAD drawing of the geometric shape of the high-dielectric region through a parameter modeling mode. According to the invention, dielectric functional gradient material distribution is introduced in consideration of the mechanical properties and interface bonding strength of a cast workpiece, the structural design of a high-dielectric area workpiece is improved; a high-dielectric composite material is prepared in a high-dielectric filler / polymer blending mode, and manufacturing of the workpiece is completed through 3D printing; and finally, the high-dielectric workpiece is put into a traditional epoxy pouring metal mold, and thermocuring epoxy resin is poured to complete manufacturing of the supporting insulator.

The invention provides a pole component of a solid sealed terminal. The pole component comprises an upper shield, a lower shield and a vacuum arc-extinguishing chamber, wherein the upper shield and the lower shield are embedded and fixed in a shell of the solid-sealed terminal by a castable insulating material, and the vacuum arc-extinguishing chamber is fixed in the shell of the solid-sealed terminal in a manner of being parallel with or perpendicular to the axial direction of the upper shield and the lower shield. By adopting the technical scheme, a high electric field is transferred to the interior of the insulating layer through the upper shield and the lower shield arranged on the pole component, so that the problem that the electric field in the upper side and the lower side of the terminal is distributed unevenly can be avoided, especially the problem that the junction of three media and the tip of a conductor cause the exceeding of electric field values can be solved.

A small-size injector having a built-in ignition device which can surely inject fuel and ignite the fuel with low electric power by the ignition device with a simple configuration is provided. The injector comprises a fuel injecting device 2 provided with a fuel injecting port 20 configured to inject the fuel, an ignition device 3 configured to ignite the injected fuel, and a casing 10 inside housing therein the fuel injecting device 2 and the ignition device 3 together. The ignition device 3 is constituted of a plasma generator 3 which integrally comprises a booster 5 having a resonation structure capacity-coupled with an electromagnetic wave oscillator MW configured to oscillate an electromagnetic wave, and a discharger 6 configured to cause a discharge of a high voltage generated by the booster 5.

The invention provides an optically controlled vacuum switch module and relates to a power high-voltage switch. The optically controlled vacuum switch module is characterized in that based on the prior vacuum switch and the prior photoelectric technology, the optically controlled vacuum switch module is constituted; an operating mechanism is directly connected with interrupter equipotential; a battery and a capacitor controlled by an optoelectronic device are used to supply power to the mechanism; and an induction power coil gets electricity from a system to supplement the battery and the capacitor, controls movements of the mechanism at a cool end through optical fiber, and operates a vacuum interrupter to complete current connection and current breaking. A certain amount of optically controlled vacuum switch modules can be connected in series according to voltage grades to constitute a high-voltage level vacuum switch, so as to replace the prior SF6 gas high voltage switch with an greenhouse effect; and the optically controlled vacuum switch module has the advantages of simple structure and convenient realization in industry, and fiber control signals can be directly controlled by a computer of the power system.

A device for exhaust gas treatment in an exhaust system of an internal combustion engine, in particular in a motor vehicle, includes an electrically heatable honeycomb body through which an exhaust gas can flow. The honeycomb body is disposed in a casing tube and has at least one current-conducting structure with electric insulation for voltages greater than 24 V. A current-generating pulsed voltage is applied to the structure to heat the honeycomb body. It is thus possible for heating elements in the exhaust-gas flow to be powered by an on-board electrical system voltage of for example 48 V. A method for operating the honeycomb body is provided with which, even at operating voltages greater than 24 V, the generation of heat in the electrically heatable honeycomb body can be kept in a desired range by adjustment of a pulse width and / or repetition frequency of the pulsed voltage.

The invention discloses a passive optical fiber temperature semiconductor sensor and belongs to the technical field of optical fiber sensing. By tightly coating an optical fiber insulating sleeve outside an optical fiber, a plurality of composite insulating skirt borders made of silicon rubber are insulated outside the optical fiber insulating sleeve; a layer of semiconductor diaphragms are coated on an end face of the optical fiber; one end coated with the semiconductor diaphragms is inserted into a ceramic bushing; the contact part of the plug and the ceramic bushing is sealed by using an epoxy glue; and the ceramic bushing can protect the sensing head of an optical fiber contact pin and shield external interference. The device is safe, reliable and good in insulating performance, the optical fiber is easy to arrange, and the sensor is simple and firm in structure, has a certain shock resistance to the sensing head, is sealed and moisture-proof, has external electromagnetic interference resistance, and can be connected with high-voltage buses conveniently, and the like.

A small-size injector having a built-in ignition device which can surely inject fuel and ignite the fuel with low electric power by the ignition device with a simple configuration is provided. The injector comprises a fuel injecting device 2 having a fuel injecting port 20 that injects the fuel, an ignition device 3 configured to ignite the injected fuel, and a casing 10 inside housing therein the fuel injecting device 2 and the ignition device 3 together. The motion device 3 is constituted of a plasma generator 3 which integrally comprises a booster 5 having a resonation structure capacity-coupled with an electromagnetic wave oscillator MW configured to oscillate an electromagnetic wave, and a discharger 6 configured to cause a discharge of a high voltage generated by the booster 5.

The invention discloses a large-current pin structure of a vertical resonant transformer. A first partition plate is arranged on a coil holder, and a second partition plate and a third partition plate are arranged at the two sides of the coil holder; a wiring part is arranged on the third partition plate, and a first coil is wound around a first wire duct formed between the first partition plate and the second partition plate; and a second coil is wound around a second wire duct formed between the first partition plate and the third partition plate. An insulating layer wraps the first coil and the first partition plate and wraps the root of the first partition plate, so that the creepage distance between the first coil and the second coil is increased. A shell cover is disposed on the second partition plate in a sleeving manner, covers the first coil and extends to the first partition plate; the first coil is connected to a connection terminal of the shell cover. The connection terminal is connected with a circuit mainboard, and the second coil extends to a wiring part and is connected to the circuit mainboard through an adapter card to increase the distance between the wiring part and the connection terminal; the adapter card can adopt double panels to greatly reduce the circuit impedance, thereby meeting the requirements of adopting the double panels and passing the safety regulation for the circuit mainboard, and reducing the manufacturing cost.

The invention discloses a directly buried maintenance-free sleeve compensator. The directly buried maintenance-free sleeve compensator comprises an inner pipe, a sleeve, a shell, heat insulating materials, a gland, a screw bolt assembly, a filler and an outer pipe; the inner pipe is provided with an outer circular boss; a left end face of the boss is coaxially and fixedly connected with the sleeve; the outer pipe is provided with an inner circular boss; the gland is sleeved on the inner pipe to be in clearance fit with a large hole of the outer pipe; the filler is fully filled between the gland and the inner circular boss of the outer pipe; and the gland is connected with a flange of the outer pipe through the screw bolt assembly to form a sealed adjustment structure. The flange of the outer pipe is fixedly connected with a right end of the sleeved shell; and the inner wall of a left end of the shell is in clearance fit with the outer circular boss of the inner pipe and the outer wall of the sleeve respectively. The heat insulating materials are arranged in cavities on two sides of the outer circular boss of the inner pipe respectively to form a built-in insulation structure. In addition, wear layers are arranged on the middle section of the inner wall of the shell which is easy to wear and on the outer wall of the right section of the inner pipe respectively. The built-in insulation structure and the sealed adjustment structure cannot be polluted by external environment during operation; and the capacity of keeping leak tightness is high. The two structures can be used as the directly buried maintenance-free sleeve compensator with various specifications.

The invention discloses an optimization method of an insulation structure of a converter transformer valve side sleeve outgoing line device. The method comprises the steps of determining factors influencing the insulation structure of the converter valve side sleeve outgoing line device, constructing each optimization objective function based on the factors, constructing an evaluation function based on each optimization objective function, and synthesizing the evaluation function by using a penalty function and a constraint condition to obtain the insulation structure of the converter valve side sleeve outgoing line device; determining the weight of each optimization objective function and solving an unconstrained objective function; and obtaining insulation structure parameters and like of converter transformer valve side sleeve outgoing line device. According to the method, the importance of each optimization objective function is defined by constructing the optimization objective function of each optimization objective, so that the insulation structure of the converter transformer valve side bushing outgoing line device can be optimized.

The invention relates to novel environmental-protection-gas insulated totally-enclosed all-insulation ring network switch equipment. The equipment comprises a stainless steel welded sealed box body and an isolation switch component installed in the stainless steel welded sealed box body. A cavity in the stainless steel welded sealed box body forms a gas box filled with an insulated gas. The upperportion of the stainless steel welded sealed box body accesses an insulation bus and a lower portion accesses a cable wiring plug. The isolation switch component is installed in the stainless steel welded sealed box body through a grounding framework, and a closing button and an opening button for controlling the isolation switch component are installed on the external portion of the stainless steel welded sealed box body. The equipment has advantages that (1) insulation performance satisfies the requirements of a power frequency withstand voltage and an impulse withstand voltage; and (2) compared with dried and purified air, the insulated gas reduces an oxygen content by half, which can improve the heat capacity of a mixed gas, and reduce the oxygen corrosion of equipment parts.

The present invention provides a power converter. The task of the invention is to restrain application of a high voltage between adjacent secondary windings of a transformer which is connected with a plurality of single-phase three-level inverter units thereby simplifying an insulation structure and minimizing the transformer. A settlement solution of the invention is characterized in that: when at least first AC input terminals (11-14) of a first single-phase three-level inverter unit (S1) and a second single-phase three-level inverter unit (S2) are connected with secondary windings (Ls1-Ls4) of the transformer (2), a first AC input terminal and a second AC input terminal are connected with opposed secondary windings for each single-phase three-level inverter unit; and for the other single-phase three-level inverter unit, the first AC input terminal and the second AC input terminal are connected with secondary windings which are crossed, thereby restricting application of the high voltage between the adjacent secondary windings.