86results about How to "Increase the effective cross-sectional area" patented technology

The Li-ion secondary cell comprises: an electrode core, the electrolyte, a metal shell, and the end cap assembly. Wherein, the metal shell contains multiple connected inner cavities every with one electrode core.

The invention discloses a tank stabilizer control device, which mainly solves the technical problems of improving the pitch damping effects of ships and the like, and adopts the technical scheme that: a left throttling passage and a right throttling passage are arranged at the top parts of a larboard air chamber and a starboard air chamber of a U-shaped tank stabilizer, throttling components are arranged on the two passages, the two components are connected with a controller which is connected with a detector, detected ship swinging period signals are input to the controller, control signals are output to the two throttling components according to set rules, and the throttling components adjust effective sectional areas of the two throttling passages so as to realize the water level alternation period of the U-shaped tank stabilizer the same as the ship swinging period. The tank stabilizer control device is applied to various U-shaped tank stabilizers.

The invention provides a 3D integrated framework of an ultrahigh frequency power converter. The 3D integrated framework comprises a PCB circuit layer and a winding unit erected on the PCB circuit layer. The winding unit is connected with the PCB circuit layer through a wire. The winding unit comprises winding layers formed on a first insulating layer and a first soft magnetic thin film layer formed on a second insulating layer. The first soft magnetic thin film layer is arranged below the winding layers in a laminated mode to be used for achieving magnetic shielding between the winding layers and the PCB circuit layer. Compared with the prior art, by the adoption of 3D integration, the size of the converter is reduced, and the power density is increased; soft magnetic materials are adopted to form the magnetic shielding layer, magnetic field interference between windings and the PCB circuit layer and between the windings and external metal is solved, the Q value of the windings is increased, the alternating current resistance and high-frequency loss of an inductor and a transformer are reduced, and the working efficiency of the converter is improved; a plane magnetic element is further adopted, and the miniaturization and flattening of products are guaranteed; temperature rising of the magnetic element is reduced greatly, and the working environment of a semiconductor device is improved.

The invention discloses a purification and ventilation device of air in a tunnel, which is provided with a cavity with openings at two ends; the cross sections of the two ends of the cavity are in a trumpet shape; the middle part of the cavity is in a cuboid; one end of the cavity is an air intake, and the other end of the cavity is an air outlet; a flow equalizing pore plate and an electrostatic dust collector are vertically arranged in the cavity in sequence; a plurality of splitters are fixed on the upper wall and the lower wall vertically in a trumpet shape part at the front end of the cavity at the axial direction of the cavity; the quantity of the splitters is odd number; a central splitter is coaxial with the axis of the cavity; the rest splitters are arranged at two sides of the central splitter in sequence; uniform clearance is formed between each two splitters; the flow equalizing pore plate is provided with a plurality of air vents; the shape of the flow equalizing pore plate is the same as that of the cross section in the inner chamber of the cavity; the flow equalizing pore plate is fixedly connected with the periphery of the inner wall of the cavity; the clearance is formed between the flow equalizing pore plate and the splitters; the clearance is formed between the electrostatic dust collector and the flow equalizing pore plate; and the inlet air and the outlet air of the electrostatic dust collector run through with the cavity. By the device in the invention, the velocity distribution uniformity of the air flowing through the electrostatic dust collector is ensured, thereby ensuring the efficiency of static dust collection.

A rope for an elevator in which a plurality of core rope strands are stranded on the outer circumference of a core strand. A core rope strand assembly is constituted of these core rope strands. The core strand has a core strand body, and a resin core strand coating covering the core strand body. Each core rope strand has a core rope strand body. The core rope strand assembly is covered with the resin core rope coating. Plurality of outer layer strands are stranded on the outer circumference of the core rope coating. An outer layer strand assembly is constituted of these outer layer strands. The outer layer strand assembly is covered with an outer layer resin coating.

A projectile deployment system for use in a intercepting target (32) wherein the system includes a body (10) defining a body axis, and a number of barrels (30) circumferentially spaced around the body axis. Each of the barrels (30) contains a number of projectiles (31) axially stacked therein, with a corresponding number of charges being provided such that each charge is associated with a respective projectile (31) along barrel (30). Each of the charges is individually activated to deploy a respective projectile (31) in response to a signal from a controller.

The invention relates to a juice extracting head and a low-speed juice extracting machine with the same. The juice extracting head comprises a body with a cutting groove, more than one cutting thread is arranged on the juice extracting head, and a continuous cutting edge formed by more than one cutting thread is arranged at the top of the juice extracting head. The cutting thread at the upper part of the juice extracting head is deep, the cutting thread at the lower part is shallow, and gradual transition is further formed. A rotating shaft of the juice extracting head is connected with a motor shaft of a motor through an elastic mechanism; or the rotating shaft of the juice extracting head is connected with the motor shaft of the motor through a buckle. The elastic mechanism comprises a shaft sleeve, a steel ball, a steel ball fixing sleeve, a spring and a fixed shaft, wherein one end of the rotating shaft of the juice extracting head and one end of the motor shaft are simultaneously inserted and sheathed in the shaft sleeve, and the steel ball fixing sleeve and the spring are sheathed outside the shaft sleeve in a sliding manner. A space-keeping position for allowing the steel ball to be pulled out of a positioning groove is arranged at the upper part of the steel ball fixing sleeve. The juice extracting head disclosed by the invention has the characteristics of simple and reasonable structure, small vibration, low noise and wide range of application.

The invention discloses a cable cross-core all-shield electronic current transducer. The transducer can use two ends of one secondary winding individually to provide a sampling signal and input the sampling signal into a signal processing circuit on an electronic circuit board; after processing, two output ends of the circuit simultaneously output two sine shaped analog signals, one signal is a measurement signal for current measurement and metering, and the other is a guard signal for current protection control. The cable cross-core all-shield electronic current transducer has both the measurement function and protection function, thereby realizing integration of a measurement current transducer and a protection current transducer, and having excellent performances, low cost, broad applicability, and remarkable economic and technical effects.

The invention discloses a natural rubber processing technique which comprises the following procedures: crushing, creping, pelleting, drying, weighing and packaging. The natural rubber processing technique is suitable for mixing and processing rubber materials of different grades, a screening procedure is additionally set after the crushing procedure, and a hammer-crushing procedure is additionally set after the creping procedure. The invention aims to provide the natural rubber processing technique which is capable of enabling the processed rubber to be relatively high in consistency, stability and cleanness.

The invention provides a kind of transformer, includes: primary coil, which is made by spiral winding the first flat conductor along the vertical direction, and a gap is available between each circle; secondary coil, which is made by parallel connecting multiple second flat U-shape conductors through connection units, among which, all second conductors can be inserted into the relevant gap of the first conductors respectively, and the magnetic core of primary coil and secondary coil can be accommodated in which. The transformer is especially suitable for the high electricity output under the high frequency condition, and the leak electricity is very minimal, additionally it is of simple structure and easy assembly. A kind of transformer manufacturing method is also provided by this invention.

A high frequency component includes a multilayer body including a plurality of insulating layers stacked in a stacking direction, linear conductors extending along the insulating layers, interlayer connection conductors extending through at least one of the insulating layers, and planar conductors extending along the insulating layers. The high frequency component further includes transverse coils and internal capacitors. Each of the transverse coils includes the linear conductors and the interlayer connection conductors spirally wound in a plane in a plurality of turns around a winding axis extending in a direction perpendicular or substantially perpendicular to the stacking direction. Each of the internal capacitors includes the planar conductors being opposed to each other such that at least one of the insulating layers is disposed therebetween, the internal capacitor being arranged within a coil opening of the transverse coil when viewed along the winding axis of the transverse coil.

The invention relates to a motor vehicle exhaust gas detection light beam reflection device and detection system. The motor vehicle exhaust gas detection light beam reflection device includes an upperreflecting mirror group and a lower reflecting mirror group; light axes of reflecting mirrors, on adjacent reflection lines, of the upper reflecting mirror group are perpendicularly arranged, and light axes of reflecting mirrors, on adjacent reflection line, of the lower reflecting mirror group are perpendicularly arranged, and a light beam is reflected by the upper reflecting mirror group and the lower reflecting mirror group and has a folded-line moving direction with an inclined angle of a right angle. The motor vehicle exhaust gas detection system includes a Fourier transform infrared spectrometer and the light beam reflection device. The Fourier transform infrared spectrometer reflects the light beam via the light beam reflecting device and then detects the motor vehicle exhaust gas.The detection of the motor vehicle exhaust gas is more accurate and more economical, and the application scope is wider, so the application of the detection system and method can be promoted.

The invention discloses an online paper quality detection device of a high-speed paper machine. The online paper quality detection device comprises an 'O'-shaped frame body, a central processing unit and an upper computer, wherein the 'O'-shaped frame body comprises a transverse beam and an upright pillar which are connected with each other. The online paper quality detection device is characterized in that the transverse beam of the 'O'-shaped frame body is provided with scanning heads in sequence, each scanning head is provided with at least one sensor for acquiring data information, and the sensor communicates with the central processing unit through a CAN (Controller Area Network) bus; the central processing unit communicates with the upper computer through a TCP / IP (Transmission Control Protocol / Internet Protocol); the central processing unit is connected with a driving unit for controlling the 'O'-shaped frame body to steadily operate at high speed. The online paper quality detection device has the beneficial effects of guaranteeing the high-speed steady operation of the frame body as well as the high-speed detection and the processing of data simultaneously when accomplishing the normal function of a QCS (Quality Control System).

A double-layer concentric loading frame structure suitable for a true triaxial testing machine includes an inner-layer frame, an outer-layer frame and a base. A square slot hole is formed in a middle part of the inner-layer frame. The inner-layer frame is mounted on the base through a support platform. Actuators are mounted at a top end and a bottom end of the inner-layer frame. The outer-layer frame sleeves the inner-layer frame concentrically. Four actuators are distributed on an outer periphery of the outer-layer frame. A support plate is mounted at the top end of the inner-layer frame, and two lifting driving cylinders are mounted on the support plate. Piston rods of the lifting driving cylinders extend below the support plate and are connected to an upper surface of the outer-layer frame. A guide post is mounted on the upper surface of the outer-layer frame and extends above the support plate.

The invention discloses an embedded open-loop Hall current sensor for an intelligent contactor and belongs to the field of Hall current sensors. The embedded open-loop Hall current sensor specificallycomprises a circuit board, a gasket, Hall elements, a multi-air-gap magnetic ring and a frame which are all packaged in a magnetic shielding assembly; the magnetic shielding assembly is fixed on an end surface of the intelligent contactor; six bang-shaped grooves with the same shape are symmetrically distributed in the frame; an air gap is reserved between every two grooves; the multi-air-gap magnetic ring is composed of six completely-identical distributed magnetic cores; the magnetic cores are embedded into the bang-shaped grooves of the frame respectively through tight fit; the Hall elements are inserted into the air gaps reserved in the magnetic ring on the frame; the four pins of each Hall element are welded onto the circuit board; the four pins are led out from the circuit board soas to extend into a magnetic shielding cover. With the embedded open-loop Hall current sensor of the invention adopted, under a premise that the length of the air gaps is fixed, the magnetism gathering effect of the magnetic ring is effectively enhanced, and a flux leakage amount at the air gaps is reduced.

The invention discloses a multi-groove and large-powder transformer. The multi-groove and large-powder transformer comprises a framework and a magnetic core, wherein the framework comprises a windingcylinder and a limitation plate, two partition plates are arranged on the winding cylinder, the winding cylinder is divided into a first winding groove, a third winding groove and a second winding groove by the two partition plates, the first winding groove and the third winding groove used for winding a first winding, the second winding groove is used for winding the second winding and is arranged between the first winding groove and the second winding groove, a shell is arranged on the framework and covers the winding cylinder, a baffle plate is arranged on the shell, and limitation groovesare formed in the two partition plates and are plugged into the baffle plate. By winding the first winding groove and the second winding groove around the first winding, the winding layers in a singlegroove are reduced, and a skin effect is reduced; and with the mode of LC resonance, the efficiency of the transformer is improved, the second winding is wound in the second winding groove between the first winding groove and the second winding groove, the creep distance between the first winding and the second winding is extended, and the transformer is safer and more reliable.

The invention provides a low-gate-resistance power MOSFET device with a separated gate enhancement structure and a manufacturing method of the device. The low-gate-resistance power MOSFET device comprises a first conductive type substrate, a first conductive type epitaxial layer and a groove structure, the groove structure comprises a control gate electrode and a separated gate electrode, the control gate electrode comprises a first gate electrode, a second gate electrode and a third gate electrode. The third gate electrode is located above the first gate electrode and the second gate electrode and is adjacent to the first gate electrode and the second gate electrode, a second conductive type well region is located above the first conductive type epitaxial layer, and a second conductive type heavily doped region is located at the upper part of the interior of the second conductive type well region. A first conduction type heavily doped source region is arranged above the second conduction type well region. The device structure has the characteristics of low gate capacitance and low gate resistance, the aims of high switching speed and low switching loss are achieved, and a low-gate-resistance metal oxide semiconductor field effect transistor with the separated gate enhancement structure is obtained.

The invention provides a cylinder wall type electromagnetic interference (EMI) filter consisting of a spiral flat coil. The filter comprises an EER magnetic core, and common mode integrated LC modules, a leakage inductance layer and differential mode capacitors which are arranged by taking the EER core as an axis. The common mode integrated LC modules comprises a common mode integrated LC structure I and a common mode integrated LC structure II. The differential mode capacitors comprise a differential mode capacitor I and a differential mode capacitor II. The two common mode integrated LC structures are isolated by the leakage inductance layer. The differential mode capacitor I is arranged at one end of the common mode integrated LC module as the input end of the whole filter, and the differential mode capacitor II is arranged at the other end of the common mode integrated LC module as the output end of the whole filter. The cylinder wall type integrated LC structures are adopted as basic components of the integrated EMI filter provided by the invention, so that high frequency current is uniformly distributed on the spiral flat coil without influencing the performance of the filter; and due to the selection of the EER core, the utilization rate and effective section area of the core are both increased.

The invention belongs to the technical field of electronic devices, and particularly discloses an inductor which comprises a coil and a magnetic core, the coil comprises a bending part which is integrally punched and arranged in a flat polygon shape and welding feet extending out of the two ends of the bending part, the bending part is wrapped in the magnetic core, the two welding feet are exposed out of the side wall of the magnetic core after being bent, and a polygonal through hole is formed in the middle of the bending part in a penetrating mode. According to the inductor with the structural design, the effective sectional area of the coil can be increased through flat winding of the coil, then the limited space of the magnetic core is fully utilized, low inductance internal resistance under the same size is achieved, the performance of the inductor is effectively improved, and meanwhile the pressed inductor is stable and reliable in structure and not prone to cracking.

There is provided a photonic bandgap fiber used in a state in which at least a part of the photonic bandgap fiber is bent at radii of 15 cm or greater and 25 cm or less. A large number of high refractive index portions 57 are disposed in a nineteen-cell core type in three layers, and a V value is 1.5 or greater and 1.63 or less. In the high refractive index portions 57, conditions are defined that a relative refractive index difference is Δ% and a lattice constant is Λμm so as to remove light in a higher mode at the bent portion as described above.

The embodiment of the invention provides a filter bottle assembly, a valve body assembly, a filter device and a water purifier. The filter bottle assembly comprises a filter bottle, a filter bottle cap, a first reducing sleeve and a filter element; the filter element is provided with a raw water inlet, a sewage outlet and a pure water outlet, the first reducing sleeve sleeves the filter element tomake the sewage outlet positioned in a first cavity between the first reducing sleeve and a pure water outlet tube, the filter bottle cap is fixedly connected with the filter bottle, and the first reducing sleeve is compacted to arrange the filter element in the filter bottle in order to make the raw water inlet positioned in a second cavity among the filter bottle cap, the filter bottle, the first reducing sleeve and the filter element; a valve body has a first open chamber, a second open chamber and a third open chamber, the pure water outlet tube is inserted into the first open chamber, and the inner chamber of the pure water outlet tube is communicated with the first open chamber; the first reducing sleeve is inserted in the second open chamber, and the first cavity is communicated with the second open chamber; and the filter bottle cap is inserted into the third open chamber, and the second cavity is communicated with the third open chamber. The technical schemes provided in theembodiment have simple structures.

The invention belongs to the electric power system technical field and relates to a power transmission line tower grounding device, in particular to a four-way type power transmission line tower grounding device. According to the power transmission line tower grounding device, connection units are in end-to-end connection with one another through annular grounding bodies so as to from a square; the four connection units are respectively provided with an actinoid grounding body; at least two connection units which are arranged diagonally are provided with grounding downleads; materials for making the connection units are all subjected to hot dip galvanizing anti-corrosion treatment, and therefore, the service life of the grounding device can be prolonged, and the effective sectional area of the grounding body can be increased, and contact resistance can be correspondingly reduced, and lightning protection and current release efficiency can be improved. The power transmission line tower grounding device of the invention has the advantages of simple structure, simple on-site operation and high universality. The power transmission line tower grounding device can satisfy requirements for power transmission line tower grounding device transformation and new line building construction and is applicable to transformation of grounding devices for any form of transmission line towers and construction.

The invention discloses a valve plug of a height adjustment reversing valve and a girth welding process thereof for a height adjustment system of a coal mining machine. The valve plug comprises a valve plug body, a left plug head and a right plug head; the left plug head and the right plug head are respectively provided with a left annular boss and a right annular boss the outer diameter of whichare the same with the outer diameter of the valve plug body; and the left annular boss and the valve plug body as well as the right annular boss and the valve plug body are respectively fastened and connected through a circular ring-shaped soldering joint which is arranged along the valve plug body radially. The girth welding process comprises the following steps: 1. groove treatment; 2. preheating before welding; 3. girth welding; and 4. heat preservation after welding. The valve plug and the process provided by the invention have the advantages of reasonable design, simple welding steps, good welding quality and long service life of valve plug manufacturing, are convenient to operate, and multiple actual problems of small operation space, smaller effective welding cross section area, lower strength, poor welding quality and higher rejection rate, is inconvenient to operate, the welding quality of the valve plug is not easy to control and the like in welding for the existing valve plug can be solved effectively.

The invention discloses a special high-efficiency and energy-saving enameled and stranded wire cable and a manufacturing method thereof. The cable is a novel product capable of increasing the perimeter of the cross sections of conductors, and the manufacturing method is a novel method. The technical means such as hole shrinkage, root increase, ellipse perimeter increase and insulation and isolation perimeter increase are adopted on the basis of the prior art, so that the perimeter of the conductors is increased greatly. Particularly, in a stranded wire range, the perimeter of the total cross sections of the conductors is increased greatly, so that the surface areas of the conductors are increased greatly, the heat dissipation efficiency of the conductors is improved, the resistance of the conductors is reduced, the conduction efficiency of the conductors is improved greatly, the line loss is reduced, the voltage quality is improved, a raw material is saved, and the electric energy is saved. Figure 10 is effect representation after three technical measures are taken. A rule is found that the maximum alternating current allowed to pass through the conductors is directly proportional to the perimeter of the cross sections of the conductors. The rule is a great discovery in physics; a theoretical foundation is laid for researching and developing the wire cable and more efficiently utilizing the electric energy; and the wire cable and the method have significant economic and social benefits.

The invention relates to a layered aluminum alloy conductor and an annealing process thereof. The layered aluminum alloy conductor comprises an aluminum alloy inner conductor, wherein an aluminum alloy equally-divided ring layer I is arranged outside the aluminum alloy inner conductor, an aluminum alloy integral ring layer is arranged outside the aluminum alloy equally-divided ring layer I, and an aluminum alloy equally-divided ring layer II is arranged outside the aluminum alloy integral ring layer. The annealing process comprises the steps of: placing the aluminum alloy inner conductor in an annealing furnace, and subjecting the aluminum alloy inner conductor to heating, heat preserving and cooling; placing the aluminum alloy equally-divided ring layer I in the annealing furnace, and subjecting the aluminum alloy equally-divided ring layer I to heating, heat preserving and cooling; placing the aluminum alloy integral ring layer in the annealing furnace, and subjecting the aluminum alloy integral ring layer to heating, heat preserving and cooling; placing the aluminum alloy equally-divided ring layer II in the annealing furnace, and subjecting the aluminum alloy equally-divided ring layer II to heating, heat preserving and cooling; and finally, placing the aluminum alloy inner conductor, the aluminum alloy equally-divided ring layer I, the aluminum alloy integral ring layer and the aluminum alloy equally-divided ring layer II in the annealing furnace after tightly compressing and twisting. The layered aluminum alloy conductor has good extensibility, good flexibility and high conductivity, so that current is evenly distributed in the conductor structure, and effective sectional area of the conductor is enlarged.

A high-voltage motor convenient to adjust magnetic path characteristic of a motor comprises a stator and stator grooves, wherein coils are embedded into the stator grooves, and the high-voltage motoris characterized by also comprising groove wedges, the groove wedges are arranged at groove openings of the stator grooves and are in T shapes, each groove wedge comprises a protruding tenon end and groove cover ends, the groove cover ends are arranged at two sides of the tenon and respectively extend along opposite directions, a central line of the tenon end and a connection line of the two groove cover ends are basically in an orthogonal relation, a tenon groove is formed between adjacent stator grooves in the stator, the tenon end is embedded into the tenon groove in the stator in a matching way, coil fixing in the stator grooves is jointly completed by the groove cover ends of adjacent groove wedges, a magnetic path gap is arranged between the groove cover ends of two adjacent groove wedges, a first cushion plate, a coil, a second cushion plate and thermal expansion glass felt are sequentially arranged in each stator groove. By the high-voltage motor, the surface loss and the pulsevibration loss of the motor are reduced, the motor efficiency is improved, the tenon ends of the groove wedges and the stator are closely embedded to each other, the high-voltage motor is difficult to loose and is high in limitation reliability and long in service lifetime, and vibration and noise of motor running are favorably reduced.

The invention discloses a current transformer, which is capable of solving the problem of temperature rise of a primary copper conductor due to a skin effect. The current transformer comprises a primary coil and two primary wiring boards, wherein the primary coil is formed by combining a cylindrical conducting rod and a tubular conducting tube sleeving the cylindrical conducting rod; each wiring board is L-shaped and comprises a connecting arm and a flat wiring board; a connection hole is formed in the upper end of each connecting arm; and the primary coil is connected with the wiring boards through the corresponding connection holes.

The invention provides an armature coil of a direct-current motor, relates to an arrangement mode of an armature coil of a low-voltage and high-current direct-current motor in an armature core, and is mainly to solve the problems that since components of the conventional armature coil of the existing low-voltage and high-current direct-current motor are parallelly arranged in a line, occupation space of electromagnetic wire body insulation is big and armature punching grooves are not fully utilized, and the two components in the middle cannot be closely attached to an armature core groove and it is difficult for coil components to dissipate heat. The armature coil of the invention is composed of two single big U-shaped coil components and two single small U-shaped coil components, wherein the big U-shaped coil components are arranged outside the small U-shaped coil components. The armature coil components of the direct-current motor are wound by single electromagnetic wires, so that the occupation space of the electromagnetic wire body insulation is reduced and armature coil groove-filling ratio is increased; effective sectional areas of the components formed by the single electromagnetic wires are big, so that current density and heat factors of the armature coil components are reduced; and each component is closely attached to the armature core groove wall, so that the coil components can dissipate heat easily and the armature coil is long in service life.

The invention provides an arrangement structure of a transformer substation grounding grid. The structure comprises a movable grounding body used for guiding a current into the ground, fixed groundingbodies used for current guiding and fixing of the movable grounding body, connection buckles used for connecting the fixed connection bodies and the movable grounding body, and grounding down conductors arranged at one end of the movable grounding body, wherein the grounding down conductors are connected with the electrical device of a transformer substation for current guiding of the electricaldevice. In the arrangement structure of the transformer substation grounding grid, the fixed grounding bodies are enlarged from inside to outside until the area of the grounding grid is the same as the area of the transformer substation, corners of a fixed grounding body are in fit contact with the sides of the larger fixed grounding body so as to increase the effective sectional area of the grounding body, correspondingly reduce the contact resistance and improve the diversion efficiency.