183results about How to "Easy to connect in series" patented technology

A photovoltaic element is provided which has at least a photovoltaic layer and a transparent electrode layer deposited on a metal substrate, a portion of the transparent electrode layer being continuously removed at a peripheral part of the metal substrate, wherein an island-shaped transparent-electrode-layer-removed-portion is provided in the transparent electrode layer in a power-generating region surrounded by the removed portion of the transparent electrode layer, a rear surface side bus-bar electrode electrically connected to the metal substrate is disposed on the rear surface side of the metal substrate at the rear of the island-shaped transparent-electrode-layer-removed-portion, and the rear surface side bus-bar electrode is connected to the metal substrate at a portion corresponding to the island-shaped transparent-electrode-layer-removed-portion, and which can enhance the degree of freedom for the shape of a photovoltaic element module while ensuring the reliability of the photovoltaic element.

The invention relates to a three-degree-of-freedom parallel mechanism type dual head for five-axis machine tools, which comprises a static platform, a movable platform and four branch chains connected with the two platforms. A control method includes seven steps: (1) a Jacobian matrix is solved according to the inverse solution formula of the symmetric structure, and a corresponding model is established; (2) a Jacobian matrix is solved according to the inverse solution formula of the asymmetric structure, and a corresponding model is established; (3) a corresponding variable-structure controller is designed; (4) the tracking locus and external load of the dual head are set, and the internal force threshold of each branch chain is set; (5) the force feedback value of a force sensor on each non-redundant branch chain is acquired and compared with a set threshold; (6) according to the Jacobian matrix in the first step, the driving force of each motor is calculated, force control is adopted on the non-redundant branch chains, and position-tracking control is adopted on the redundant branch chains; (7) according to the Jacobian matrix in the second step, the driving force of each motor is calculated, position-tracking control is adopted on the non-redundant branch chains with the force feedback values larger than the threshold, and force control is adopted on the redundant branch chains and the other two non-redundant branch chains.

The invention relates to an intelligent battery module, and aims to provide an intelligent battery module and a battery pack with automatic balance capability. The intelligent battery module comprises a battery monomer or a battery pack formed by one battery monomer or formed by connecting n battery monomers in series, wherein the anode and the cathode of the battery monomer or the battery pack are connected to an input end of a DC(direct current)/DC converter; two output ends of the DC/DC converter serve as intelligent battery module outputs; the intelligent battery module also comprises a control circuit; the control circuit is provided with a communication interface circuit used for providing an indication signal for the control circuit; and the control circuit regulates output voltage of the intelligent battery module on the basis of the indication signal. According to the intelligent battery module and the battery pack, external power supply and internal charge can be realized by the DC/DC converter, the series connection can be conveniently realized, the balance between the battery modules is realized, and the maximum utilization and the maximum service life of battery storage energy can be realized.

The invention discloses a direct-current breaker including a converter circuit, a cutoff circuit and an energy-absorption circuit which are connected in parallel. A breaker comprises a control circuit which is connected to the converter circuit, the cutoff circuit, the energy-absorption circuit and a main circuit respectively. The converter circuit comprises converter units connected in series and at least one mechanical switch. The cutoff circuit comprises N cutoff units connected in series. Arc-less breaking of current can be realized rapidly with the direct current breaker controlled; and number of switches of a power semiconductor is greatly decreased on the premise of realizing two-way cutoff capacity is realized, and cost is reduced.

The invention belongs to an optical fiber grating earth pressure sensing method. The method is characterized in that: a bearing disc (1) is connected with a cylindrical cavity shell (6), the cylindrical cavity shell (6) is connected with a disc cover (11); the bottom end of the cylindrical cavity shell (6) is provided with two wedge-shaped blind holes (12), and two fixed legs (5) are wedged into the two wedge-shaped blind holes (12); the fixed legs (5) are provided with fixed splints (13) and buffer splints (14) respectively, the fixed splints (13) are fixed at the two ends of a force measurement grating (9), the buffer splints (14) are fixed at the two ends of a temperature compensation grating (8), after the force measurement grating (9) and the temperature compensation grating (8) are connected in series, the two ends of the connected force measurement grating (9) and the temperature compensation grating (8) are connected with an input/output optical fiber (7) by a grating port (10), wavelength values of the force measurement grating (9) and the temperature compensation grating (8) are measured by an optical fiber grating demodulator, and then a true value of the earth pressure is obtained by subtracting the wavelength value of the temperature compensation grating (8) from the wavelength value of the force measurement grating (9). The method has the advantages of high sensitivity, anti-electromagnetic interference, good stability and being capable of monitoring landslide mass deformation, subgrade settlement, tunnel roof deformation and bridge deformation for a long time.

The invention belongs to the technical field of lithium ion batteries, and particularly relates to a lithium ion battery. The lithium ion battery comprises a positive plate, a negative plate, an isolating membrane spaced between the positive plate and the negative plate and electrolyte, wherein the positive plate comprises a positive current collector and a positive active material layer arranged on the surface of the positive current collector; the positive active material layer comprises components in percentage by mass as follows: 98.1%-99.8% of positive active materials, 0.1%-1% of a positive conductive agent and 0.1%-1% of a positive adhesive; and a negative conductive agent comprises at least one of carbon fiber, carbon nano tubes, carbon nanorods and graphene or a mixture of carbon black with at least one of carbon fiber, carbon nano tubes, carbon nanorods and graphene. Compared with the prior art, the energy density of the battery and the high-power charge and discharge characteristics of the battery are improved under the premise that a diaphragm isn't separated.

The invention discloses a ZSM-5 composite molecular sieve with a core-shell structure, a preparation method and an application thereof. The molecular sieve is characterized in that: the core phase is a ZSM-5 molecular sieve, the shell phase is a ZSM-5 molecular sieve with a mesoporous structure, the total molar ratio of silica to alumina is 30-80, the total specific surface area is 460-550 m2/g, the total pore volume is 0.25-0.38 ml/g, the size of the mesopore in the shell phase is 2-2.5 nm, the specific surface area of the mesopore in the shell phase is 480-650 m2/g, and the pore volume of the mesopore in the shell phase is 0.2-0.31 ml/g. The preparation method comprises the following steps: firstly performing crystallization of a mixture containing sodium hydroxide, a template, water, a silicon source, an aluminium source, a surfactant and the ZSM-5 molecular sieve, then performing washing, drying, roasting of the crystallized product to obtain the ZSM-5 composite molecular sieve. The composite molecular sieve is applicable to aromatic hydrocarbon conversion reaction, and has the advantages of high conversion rate and selectivity, and long catalyst life.

The present invention relates to a fuel cell stack incorporated in a fuel cell device and a fuel cell device including such a fuel cell stack. The fuel cell stack (4) according to the present invention has a plurality of tubular fuel cell bodies (6-10) arranged laterally relative to a longitudinal direction of the fuel cell bodies and electrically insulating support plates (12, 14) fixed to respective opposite ends (6a, 6b) of the plurality of the fuel cell bodies (6-10). Each of the fuel cell bodies (6-10) has an inner electrode layer (16), an outer electrode layer (20) and an electrolyte layer (18) disposed between the inner and outer electrode layers (16, 20). Each of the fuel cell bodies (6-10) also has, at one end thereof, an inner electrode exposed periphery (16a) where the inner electrode layer (16) is exposed out of the electrolyte layer (18) and the outer electrode layer (20). The fuel cell stack (4) further has connections (15) disposed at each of the support plates (12, 14) to electrically connect the fuel cell bodies (6-10) in an arbitrary combination.

The invention relates to a thermoelectric generation module utilizing LNG cold energy, and a preparation method thereof. The preparation method comprises the following steps that: a mirror-polished quartz SiO2 glass sheet or polyurethane is taken as a base film; mixed crystals of Te, Bi and Sb are subjected to magnetron sputtering deposition according to the molar ratio of Pb to Bi to Sb being (0.1-0.3):6:1 and Te to Bi to Sb being (0.05-0.2):6:1 respectively so as to prepare a P-type nano-film sheet and an N-type nano-film sheet; and the P-type and the N-type nano-film sheets in series connection are inlaid into insulating ceramics and connected so as to form a main structure of the thermoelectric generation module used at low temperature. The LNG cold energy can be utilized better by use of the thermoelectric generation module. The module adopts a full-static thermoelectric-material thermoelectric generation mode, is simple in structure, can conveniently perform series or parallel combination, and is a way with great prospects to realize thermoelectric generation through LNG cold energy at low temperature.

The invention discloses NaY type molecular sieves and a preparation method therefor. The molecular sieves have the properties as follows: the mesoporous distribution is 2nm to 6nm, the pore volume of mesopores accounts for 10% to 70% that of micropores and preferably is 20% to 60%, and the specific surface area is 750m<2>/g to 950m<2>/g and preferably is 800m<2>/g to 920m<2>/g; the external specific surface (mesoporous specific surface) is 50m<2>/g to 200m<2>/g and preferably is 100m<2>/g to 160m<2>/g; and the pore volume is 0.40ml/g to 0.60ml/g and preferably is 0.42ml/g to 0.55ml/g. The preparation method comprises the following steps: (1) uniformly mixing sodium hydroxide, an aluminum source, water glass and water, and carrying out aging, so as to obtain a directing agent; and (2) uniformly mixing the directing agent obtained in the step (1), roasted amorphous silica-alumina, sodium hydroxide, water and water glass so as to obtain a gel system, then, carrying out low-temperature crystallization and high-temperature crystallization, and carrying out cooling, solid-liquid separation and drying, thereby obtaining the NaY type molecular sieves. The molecular sieves disclosed by the invention have neat mesoporous distribution; the preparation method is simple in operation and good in repeatability; and the molecular sieves have a broad application prospect in a hydrocracking reaction.

This invention disclosed a measuring method for micro-displacement. It was suitable for displacement less than 1 micron. It adopts balance lever system to amplify the displacement so that the precision was largely improved. It adopts two-level balance regulation system to decrease distortion so that the measuring process was stable. The advantages are as follows: the structure was simple; it is easy to handle; the cost was very low.

The invention relates to building construction equipment and discloses an automatic falling preventing device for an integral lifting scaffold, which is characterized by comprising an attached vertical plate, an upper cover plate, a lower cover plate, a hanger plate, an upper limit block, a lower limit block, an oblique stripped hole, a spring seat, a compression spring, a left baffle, a right baffle, a brake bar and a sliding shaft, wherein the attached vertical plate is fixed to a wall of a building; the upper cover plate and the lower cover plate are transversely fixed on the attached vertical plate in parallel; the hanger plate passes through the upper cover plate and the lower cover plate in a vertical sliding way; the upper limit bock and the lower limit block are arranged on the hanger plate and arranged outside the upper cover plate and the lower cover plate; the oblique stripped hole is arranged in the middle-upper part of the hanger plate; the spring seat is arranged at the middle-lower part of the hanger plate; the compression spring is arranged between the spring seat and the lower cover plate; the left baffle and the right baffle are vertically fixed between the uppercover plate and the lower cover plate in parallel; the brake bar passes through the left baffle and the right baffle in a horizontal sliding way; the sliding shaft is vertically arranged on the brakebar; the sliding shaft is vertical to the hanger plate and extends into the oblique stripped hole in the hanger plate; and a working pull ring is arranged at the lower part of the hanger plate.

The invention provides a micro heat pipe array board phase-change heat storage and release method and system. A micro heat pipe array board is arranged in a phase-change heat storage material, and heat conduction and heat exchange are directly carried out between the surrounding phase-change heat storage material and the micro heat pipe array board. Part of the surface of the micro heat pipe array board carries out heat exchange through a heat storage heat exchanger or a heat release heat exchanger, so that rapid heat storage and heat release are carried out on the phase-change heat storage material through direct heating and a cold source circuit or through a hot source circuit and the cold source circuit. The problems that a heat storage device improved from an existing coiled pipe type heat exchanger is large in size, large in pipeline resistance and high in manufacturing cost, and a phase-change material is poor in heat conduction performance and flowing property, so that heat resistance with a heat storage and release circuit is too high, the heat storage and release effects are not ideal, and heat storage can be not achieved through direct electrical heating are solved. Heat storage and heat release with low temperature difference and large power are realized, serial-connection and parallel-connection assembling can be carried out conveniently, and therefore heat storage integrated products on various scales are formed.

The invention discloses a fuel cell module convenient to mount and detach, and belongs to the technical field of a fuel cell. The fuel cell module comprises a fluid distributor, front and back baffles, fuel cell soft packs, cell soft pack connecting strips and strapping tapes; the fuel cell soft packs comprise I type fuel cell soft packs and II type fuel cell soft packs which are integrated with the front and back baffles respectively to be fixed by the strapping tapes; and n pieces of fuel cell soft packs are stacked at intervals based on the I type fuel cell soft packs and II type fuel cellsoft packs in sequence and are connected in series, and then the fluid distributor is mounted in the front surface of the front baffle to be bundled into an integrated body by the strapping tapes to combine the fuel cell module. By adopting the novel fluid distributor to replace the complex pipeline, the fuel cell module is simple in structure, capable of saving space, and convenient to mount or detach, so that the continuous and stable operation of the battery module can be ensured, thereby prolonging the service life of the fuel cell module, and improving practicability.

The invention discloses a plate arranging mechanism and a solar cell welding machine. The plate arranging mechanism comprises an engine base, a carrying device and a driving device, wherein a first reclaimer working station, a second reclaimer working station and a plate arranging working station are arranged on the engine base, the carrying device is movably installed on the engine base, and thecarrying device is used for separately grabbing interlinked plates located on the first reclaimer working station and the second reclaimer working station, turning the interlinked plates located on the first reclaimer working station and the second reclaimer working station down, and carrying the interlinked plates located on the first reclaimer working station and the second reclaimer working station to a glass plate on the plate arranging working station to make a positive electrode of one interlinked plate on the glass plate opposite to a negative electrode of the other interlinked plate onthe glass plate. In the technical scheme, the carrying device carries the two interlinked plates to the glass plate, in a carrying process, the two interlinked plates are turned down to make cell negative electrode surfaces of the two interlinked plates attached to the glass plate, and the positive electrode of one interlinked plate and the negative electrode of the other interlinked plate are arranged on the glass plate oppositely so that the two interlinked plates can be conveniently connected in series.

The present invention discloses a parallel structure and a manufacturing method thereof, and an electronic device comprising a parallel structure. The parallel structure comprises source/drain layersand channel layers alternately stacked on a substrate and a gate stack formed by winding at least part of the periphery of each channel layer. Each channel layer, the source/drain layers at the upperand lower sides and the gate stack formed through winding form corresponding semiconductor devices. In each semiconductor device, one of the source/drain layers at the upper and lower sides of the corresponding channel layers is in contact with a first conductive channel arranged at the periphery of an active region, the other one of the source/drain layers is in contact with a second conductive channel arranged at the periphery of the active region, and the gate stack formed by winding the channel layers is in contact with a third conductive channel arranged at the periphery of the active region. The first conductive channel is common for all the semiconductor devices, the second conductive channel is common for all the semiconductor devices, and the third conductive channel is common forall the semiconductor devices.

The invention provides a battery module and a welding system and relates to the technical field of battery modules. The battery module comprises a plurality of battery cells, a battery cover, a first current collector plate and a second current collector plate, wherein the battery cover and the first current collector plate are matched with the battery cells; the battery cover is arranged at two ends of the battery cells in a sleeving manner; the first current collector plate is contacted with a conductive part of the battery cover so as to converge current of the battery cells; the second current collector plate is welded on the first current collector plate to form a wiring terminal of the battery module used for outputting electric energy. Due to the battery cover and the first current collector plate, the battery cells are conveniently connected in parallel or series so as to form a battery pack. A hollow gap is formed in the second current collector plate, so that welding current can be centralized, the welding time is further shortened, and the welding efficiency is improved.

The invention provides an organic super capacitor with low internal resistance, which comprises an electric core and an aluminum-plastic film, and is characterized in that the super capacitor has a double-faced output structure, the front and the back of the super capacitor are provided with an anode output face and a cathode output face respectively, the anode output face contacts with a non-coating face of an anode piece on the outermost side of the electric core, the cathode output face contacts with a non-coating face of a cathode piece on the outermost side of the electric core, and the aluminum-plastic film is provided with windows exposed out of the anode output face and the cathode output face and is in press fit with the periphery of the anode output face and the cathode output face. As compared with an existing organic super capacitor of a terminal output structure and a polar lug structure, the organic super capacitor with the low internal resistance is simple in structure and convenient in manufacture, materials are saved, the internal resistance inside the super capacitor is greatly reduced, and single super capacitors in series connection are convenient in combination and small in connecting resistance, so that heavy current output performance of the single super capacitors and a super capacitor group is remarkably improved.

The invention provides a method for simultaneously detecting ochratoxin A and zearalenone. The method comprises the steps of performing extraction on cereals and/or cereal products by using acetonitrile-water mixed solvent, collecting extracting solution, filtering, diluting filtrate and then transferring to an immunoaffinity column, eluting with methyl alcohol for at least two times, combining eluent and drying by blowing, dissolving and filtering residue to acquire test liquid; and detecting the test liquid by high performance liquid chromatography. The detection method provided by the invention has detection limits of 0.7ng/ml and 4ng/ml for the ochratoxin A and the zearalenone, separately achieves ochratoxin A recovery rates of 98.4%, 99.6% and 99.3% when standard addition levels are 2.5, 5 and 10 microgram/kg, and separately achieves zearalenone recovery rates of 95.17%, 95.23% and 98.62% when standard addition levels are 30, 60 and 120 microgram/kg, which are far higher than the prior art. Therefore, the method provided by the invention is high in sensitivity and accuracy, and can simultaneously detect the ochratoxin A and the zearalenone.

This back contact solar cell module is provided with: a back sheet; a circuit sheet that is laminated on the back sheet and has a wiring pattern on the front surface; a sealing material with an insulating layer, which is laminated on the circuit sheet, is configured of an insulating film and a pair of sealing material layers that are provided on both surfaces of the insulating film, and has a through hole; a back contact cell which is formed on the sealing material with an insulating layer and has a cell electrode on the back surface; a transparent sealing material that is laminated so as to cover the sealing material with an insulating layer and the back contact cell; a transparent base that is laminated on the transparent sealing material; and a conductive paste that is provided in the through hole and electrically and physically connects the cell electrode with the wiring pattern.