31results about How to "Prolonged conduction time" patented technology

A portable apparatus which allows a user to perform self-diagnostic evaluation of nerve sensory latency between a pair of epidermal locations proximal to nerve conduction paths. The device provides a simple and low-cost self-diagnostic apparatus which may be used for the detection and ongoing monitoring of sensory latency, such as sensory latency which is the result of carpal tunnel syndrome. The apparatus is powered by a single battery which provides power to all circuitry of the apparatus. Upon power activation, the device generates a series of high voltage stimulus pulses at an electrode in epidermal contact with the user / operator. The nerve response voltage is detected by a second electrode located along nerve pathway and the time delay between stimulus and response is displayed and periodically updated as each new response is detected.

A data de-multiplexer and a control method thereof transmit plural image-data signals from an image-data driving element to a plurality of data lines of plural subpixels of a single pixel. The image-data signals time-sharing output to the data lines of the sub-pixels of the single pixel in sequence. Each of the data lines equips a sub-transmission circuit, and the sub-transmission circuits comprise plural switch paths that are controlled by a set of multiplex-control signal. By way of this, each image-data signal from the image-data driving element will transmit to the data line of the subpixel via the time-sharing conduction of the sub-transmission circuits in sequence.

A non-isolated AC / DC converter having power factor correction, comprising an active switch connected to a waveform controller for control, and sequentially showing conduction, cut off, making the alternating current power supply pass through one circuit rectifier for rectifying and forming one positive half sine wave electricity supply, which passes through a voltage step-down circuit to proceed with decreasing the voltage, then passing through a filter / storage circuit for filtering and forming direct current power supply, which is stored on this filter / storage circuit, then releasing the energy and supplying electricity to the electricity end; as a transformer isn't required, the circuit volume can be reduced, lowering costs, raising circuit conversion rates and achieving power factor correction and increasing the lifespan of the transformer, moreover, through the waveform controller controlling the output waveform, the storage circuit utilizes a lower capacity capacitor to avoid using an electrolytic capacitor, thereby increasing the circuits lifespan.

The invention provides a preparing method and a using method of an aluminum electrolytic anode covering device. The preparing method comprises the steps of agitating and leaching dross generated in aluminum electrolysis remelting aluminum ingot production or aluminum alloy smelting process with water to obtain slurry, then washing leached residues obtained by pressing and leaching the slurry through three sections of reversed flow to obtain cleaned residues and then pressing the cleaned residues into the anode covering device. The anode covering device (2) comprises at least four semicircular through holes (2a) where anode steel claws are arranged. The using method is that two anode covering devices are symmetrically arranged on the upper surface of an anode carbon block and then are arranged into an electrolytic cell together, the gaps between anodes and the gaps between the anode steel claws and the anode covering devices are coated and sealed by aluminum ash cleaned residues, the spaces formed between middle joints and hearths are filled with and sealed by covering material shell blocks of the electrolytic cell and aluminum ash cleaned residues. By means of the preparing method and the using method, the problems that aluminum electrolytic anode covering is complex in operation and large in labor intensity of workers are solved, and recycling of waste aluminum ash is achieved.

The invention belongs to the technical field of detectors, and particularly relates to an optothermal detector and a preparation method thereof. The optothermal detector is formed by sequentially connecting a substrate layer, a dielectric layer, a first nanometer layer and a second nanometer layer from bottom to top; and the first nanometer layer is formed by connecting pyroelectric blocks and metal balls at intervals and starts and ends with the pyroelectric blocks, the pyroelectric blocks on the two sides of the first namometer layer are provided with a first electrode and a second electroderespectively to be used for being connected with an external circuit, the second nanometer layer is a graphene film layer, and the metal balls are made of a precious metal material. Absorption to incident light is enhanced by adopting multiple nanometer layers, a strong coupling effect with the incident light is formed by means of the combination design of the metal balls and the graphene film layer, therefore, absorption to the incident light by the optothermal detector is enhanced, the light signal capture efficiency is improved, and then the purpose of improving the detection effect is achieved; and the structure is simple, the preparation process is simple and convenient and easy to operate.

An electric arc welder comprising a power source driven by a main input transformer with a secondary winding creating an output pulsating current across the electrode and workpiece of a welding operation is provided with a background current circuit including a full-wave rectifier with AC input and a rectified DC output connected in parallel with the power source across the welding operation wherein the full-wave rectifier is connected in parallel with the secondary winding.

An AC / DC converter includes a rectifier circuit and a power factor correction circuit. An input port of the rectifier circuit receives an alternate current. The power factor correction circuit includes a first inductor, a second inductor, a first capacitor, a second capacitor, a first diode and a second diode. An end of the first inductor electrically connects to a positive pole of an output port of the rectifier circuit, and the other end electrically connects to a ground terminal of the output port through two parallel series routes which are bridged by the first diode. Wherein a series route contains the first capacitor and the second diode, and the other series route contains the second inductor and the second capacitor. The second capacitor is provided for parallel connecting with a loading. In this way, the input current could be controlled to increase the power factor effectively.

Disclosed is a modified electroconductive polymer material, which comprises a metal filled in a space between the chains of an electroconductive polymer. The metal is oxidized (partially formed as a hydroxide) through a chemical reaction between three substances consisting of the metal, a cation radical / dication, and absorbed water. The metal has a work function less than that of the electroconductive polymer. The contact between the metal and the electroconductive polymer is kept in the state of coexistence between three substances consisting of the metal, the cation radical / dication and the absorbed water. This allows an electroconductive polymer material to have enhanced durability against oxidation / reduction, and controlled conductivity.

There are provided an LED driving apparatus and an LED driving method. The LED driving apparatus includes a rectifying unit rectifying AC power; a light emitting unit including a plurality of light emitting diodes; a switching unit including a plurality of switching elements connected to the plurality of light emitting diodes; and a controlling unit controlling operations of the plurality of light emitting diodes, wherein the controlling unit controls a duty ratio of a turned-on switching element based on a level of the AC power within respective turning-on periods of the plurality of switching elements.

A non-isolated AC / DC converter having power factor correction, comprising an active switch connected to a waveform controller for control, and sequentially showing conduction, cut off, making the alternating current power supply pass through one circuit rectifier for rectifying and forming one positive half sine wave electricity supply, which passes through a voltage step-down circuit to proceed with decreasing the voltage, then passing through a filter / storage circuit for filtering and forming direct current power supply, which is stored on this filter / storage circuit, then releasing the energy and supplying electricity to the electricity end; as a transformer isn't required, the circuit volume can be reduced, lowering costs, raising circuit conversion rates and achieving power factor correction and increasing the lifespan of the transformer, moreover, through the waveform controller controlling the output waveform, the storage circuit utilizes a lower capacity capacitor to avoid using an electrolytic capacitor, thereby increasing the circuits lifespan.

The invention discloses a transportation packaging box with a protection structure based on logistics supply, and belongs to the technical field of logistics supply. The transportation packaging box with the protection structure based on logistics supply comprises rolling wheels, a sponge mat and a feeding mechanism, a base is connected to the upper portions of the rolling wheels, a baffle plate is arranged at the front end of the sponge mat, a rotating shaft is connected to the upper portion of the baffle plate, a partition plate is arranged on the left side of the upper portion of the feeding mechanism, a sliding block is fixedly arranged to the lower portion of the partition plate, an elastic piece is connected to the right side of the sliding block, a buffer plate is arranged on the left side of a shell, and a telescopic groove is formed in the right side of a buffer ring. The transportation packaging box with the protection structure based on logistics supply cannot be opened dueto an accident, internal objects cannot be broken due to falling, the inner part is fully protected, buffering on collision between the objects and the inner wall can be carried out, the safety is high, storing the objects in a classified mode can be carried out according to conditions, automatically feeding and discharging the objects can be carried out, and the transportation packaging box is convenient to use.

The invention relates to the technical field of rectifying circuits and capacitor filtering circuits in alternating current and direct current conversion, in particular to a circuit capable of increasing the conduction angle of a bridge rectifier. The circuit comprises a first rectifying circuit body and a second rectifying circuit body and is characterized in that a regulator circuit body is arranged between the first rectifying circuit body and the second rectifying circuit body, and the regulator circuit body is electrically connected with the first rectifying circuit body and the second rectifying circuit body respectively. According to the circuit, the regulator circuit body is additionally arranged between the two rectifying circuit bodies which are originally independent so as to prolong the conduction time of diodes in the corresponding original rectifying circuit bodies to increase the conduction angle and reduce impact currents, and therefore the service life of the diodes is prolonged. The circuit capable of increasing the conduction angle of the bridge rectifier prolongs the conduction time of diodes in the capacitor filtering circuits, and increases the conduction angle, thereby prolonging the service life of the diodes.

Disclosed is a modified electroconductive polymer material, which comprises a metal filled in a space between the chains of an electroconductive polymer. The metal is oxidized (partially formed as a hydroxide) through a chemical reaction between three substances consisting of the metal, a cation radical / dication, and absorbed water. The metal has a work function less than that of the electroconductive polymer. The contact between the metal and the electroconductive polymer is kept in the state of coexistence between three substances consisting of the metal, the cation radical / dication and the absorbed water. This allows an electroconductive polymer material to have enhanced durability against oxidation / reduction, and controlled conductivity.

The invention relates to an anode structure for increasing the exhaust rate of electrolysis gas from an aluminum electrolysis cell. The anode structure comprises an anode assembly and a guide rod assembly. The anode assembly is fixedly connected with the guide rod assembly. A groove is formed in the bottom of the anode assembly. A through hole is formed in a carbon bowl in the middle of the anode assembly. The guide rod assembly comprises a guide rod, a beam and a plurality of steel jaws. Two steel jaws corresponding to the carbon bowl are each provided with a through hole. Through holes are formed in the beam. According to the anode structure, secondary reactions generated by dissolved metal aluminum particles and CO2 gas are reduced, and the current efficiency is improved; overpotential formed by a gas film is reduced, and power consumption is lowered; the non-conductive time of a new anode is shortened, and fluctuations of the electrolysis cell are reduced; and consumption losses of fluoride salt on a machining face along with gas flying are reduced.

The invention discloses manufacturing device vibration attenuation equipment for a mechanical manufacturing system. The manufacturing device vibration attenuation equipment comprises a supporting seat, a bearing plate and an adjusting block. A bottom plate is mounted above the supporting seat. A fixed plate is attached to the surface of the top end of the bottom plate. Nuts are mounted at the topends of fixed bolts. Transverse partition plates are fixed in the bearing plate. Longitudinal partition plates are arranged on the right sides of the transverse partition plates. The right side of theadjusting block is connected with a sliding block, and a sliding way is arranged on the outer portion of the siding block. An opening is formed in each locating plate. Spring seats are arranged on the right side of each extending plate. Press plates are fixed to the right sides of reset springs. A mounting plate is attached to the surface of the top end of the adjusting block. According to the manufacturing device vibration attenuation equipment for the mechanical manufacturing system, stress is uniform and reasonable; the structure is firm; the height can be adjusted according to manufacturing devices of different sizes and structures; the application range is wide; the manufacturing devices cannot be scratched; and connection with the manufacturing devices is firm.

The present invention refers to power-factor correction device, consisting of ac / dc conversion circuit and PFC auxiliary circuit. Said device couples a group of auxiliary circuit between input end and output and output end of ac / dc conversion circuit, for increasing current conducting time and limiting working current peak value without the need to raise inductor choke and inductor value.

The invention belongs to the technical field of detectors, and particularly relates to an optothermal detector and a preparation method thereof. The optothermal detector is formed by sequentially connecting a substrate layer, a dielectric layer, a first nanometer layer and a second nanometer layer from bottom to top; and the first nanometer layer is formed by connecting pyroelectric blocks and metal balls at intervals and starts and ends with the pyroelectric blocks, the pyroelectric blocks on the two sides of the first namometer layer are provided with a first electrode and a second electroderespectively to be used for being connected with an external circuit, the second nanometer layer is a graphene film layer, and the metal balls are made of a precious metal material. Absorption to incident light is enhanced by adopting multiple nanometer layers, a strong coupling effect with the incident light is formed by means of the combination design of the metal balls and the graphene film layer, therefore, absorption to the incident light by the optothermal detector is enhanced, the light signal capture efficiency is improved, and then the purpose of improving the detection effect is achieved; and the structure is simple, the preparation process is simple and convenient and easy to operate.

The invention belongs to the technical field of data closed loop systems, and particularly relates to an equipment display device convenient to suspend based on a data closed loop. The device comprises a supporting mechanism, an extension block and a suspension mechanism. An adjusting mechanism is mounted above the supporting mechanism, a shell is fixed to the rear portion of the extension block,and the extension block is located on the outer portion of a rotating groove. A positioning mechanism is arranged on the right side of the suspension mechanism, an outer frame is fixed to the rear portion of the shell, a protective shell is arranged on the left side of the rotating groove, a rotating shaft is connected to the left side of a motor, fan blades are fixed to the lower portion of the rotating shaft, and through holes are formed in the left sides of the fan blades. The equipment display device convenient to suspend based on the data closed loop can bear large impact force and is notprone to being damaged, the height and angle can be adjusted conveniently according to conditions, the structure is flexible, the device can be selected to be placed on a plane or suspended conveniently, use is convenient, little time is consumed for suspending the device, blue light can be blocked, and the body of a user is not prone to being influenced.

The invention relates to the technical field of battery aluminum shell processing equipment, in particular to a mold for battery aluminum shell production. The mold comprises a bottom plate and a mounting plate, the top end of the bottom plate is provided with uniformly distributed damping support structures, and the top ends of the damping support structures are provided with lower mold structures; and upper mold structures which are uniformly distributed are arranged at the bottom end of the mounting plate. The service life of the mold is prolonged, meanwhile, the maintenance time is shortened, and therefore the production efficiency and the production cost are improved; and meanwhile, condensate can cool battery aluminum shells machined through the mold, a spiral condenser pipe increases the contact area between the condenser pipe and the battery aluminum shells machined through the mold, and meanwhile, the circulation time of the condensate in the condenser pipe is prolonged, so that the range and the duration of cooling the battery aluminum shells by the condensate are expanded, the cooling efficiency is improved, the battery aluminum shells can be rapidly cooled and solidified, the production efficiency and the product quality of the battery aluminum shells are improved, and the production cost is saved while the quality is improved.

The invention belongs to the technical field of detectors, and particularly relates to a photothermal detector for improving detection precision and a preparation method thereof. The photothermal detector is composed of a base layer, a dielectric layer, a nano layer and a light blocking layer connected in order from bottom to top. A first nanopore is disposed in the nano layer, the first nanoporeis filled with precious metal particles, a second nanopore the same as the first nanopore is disposed in the light blocking layer, the first nanopore and the second nanopore are vertically opposite toeach other, a first electrode and a second electrode are respectively disposed on the two sides of the nano layer for connecting an external circuit, the nano layer is made of a heat sensitive material, and the light blocking layer is made of a silicon material, which solves the problem that the photothermal detector cannot accurately detect the absorption of photons and the photothermal conversion efficiency of the fixed area. The purpose of accurately measuring the absorption of photos and the photothermal conversion is achieved by the fixed area absorption, the structure is simple and theuse is convenient.

An AC / DC converter includes a rectifier circuit and a power factor correction circuit. An input port of the rectifier circuit receives an alternate current. The power factor correction circuit includes a first inductor, a second inductor, a first capacitor, a second capacitor, a first diode and a second diode. An end of the first inductor electrically connects to a positive pole of an output port of the rectifier circuit, and the other end electrically connects to a ground terminal of the output port through two parallel series routes which are bridged by the first diode. Wherein a series route contains the first capacitor and the second diode, and the other series route contains the second inductor and the second capacitor. The second capacitor is provided for parallel connecting with a loading. In this way, the input current could be controlled to increase the power factor effectively.

The invention provides a preparing method and a using method of an aluminum electrolytic anode covering device. The preparing method comprises the steps of agitating and leaching dross generated in aluminum electrolysis remelting aluminum ingot production or aluminum alloy smelting process with water to obtain slurry, then washing leached residues obtained by pressing and leaching the slurry through three sections of reversed flow to obtain cleaned residues and then pressing the cleaned residues into the anode covering device. The anode covering device (2) comprises at least four semicircular through holes (2a) where anode steel claws are arranged. The using method is that two anode covering devices are symmetrically arranged on the upper surface of an anode carbon block and then are arranged into an electrolytic cell together, the gaps between anodes and the gaps between the anode steel claws and the anode covering devices are coated and sealed by aluminum ash cleaned residues, the spaces formed between middle joints and hearths are filled with and sealed by covering material shell blocks of the electrolytic cell and aluminum ash cleaned residues. By means of the preparing method and the using method, the problems that aluminum electrolytic anode covering is complex in operation and large in labor intensity of workers are solved, and recycling of waste aluminum ash is achieved.

The invention discloses a surface polishing device with a temperature control function for aluminum magnesium titanium alloy production, and relates to the technical field of aluminum magnesium titanium alloy production, in particular to the surface polishing device with the temperature control function for aluminum magnesium titanium alloy production. The surface polishing device with the temperature control function for aluminum magnesium titanium alloy production comprises a base, an outer shell and a support mechanism; the outer shell is mounted above the base; the support mechanism is distributed on one side of the outer shell; a translation mechanism is mounted on the top end surface of the base; a driving mechanism is mounted at the bottom end in the outer shell; and a temperature control switch is fixedly connected with the outer shell. In the surface polishing device with the temperature control function for aluminum magnesium titanium alloy production, acting force is appliedby pushing the outer shell through extension of a hydraulic push rod, so that an extension block moves in a slide way; and the outer shell drives a polishing disc to move in the horizontal direction,so that the device polishes aluminum magnesium titanium alloys with different lengths, and the application range of the device is widened.

The invention relates to the field of micro-nano optics, in particular to a graphene enhanced absorption metal micro-nano structure and a preparation method thereof. The metal micro-nano structure takes silicon or silicon dioxide as a substrate; a first metal layer, a silicon dioxide layer, a second metal layer and a first graphene film layer are evaporated in sequence from bottom to top. A substrate layer is made of silicon or silicon dioxide materials, the first metal layer and the second metal layer are made of gold or silver materials, absorption of incident light is enhanced by adding thecoupling effect between the graphene film layer and the metal layers, the problem that a metal micro-nano structure is small in absorptivity is solved, the structure is simple, and preparation is convenient.

The invention discloses a new material conveniently transmitted rapid detecting device which comprises a bottom plate, a support plate and a side plate, wherein a support rod is mounted above the bottom plate; a reinforcing rib is connected with one side of the support rod; a transmission mechanism is arranged on one side of the top end of the support plate; the support plate is positioned below the reinforcing rib; one side of the reinforcing rib is welded with the support rod; a support mechanism is arranged in the side plate; the side plate is positioned above the support rod; and a detecting mechanism is fixed above the side plate. According to the new material conveniently transmitted rapid detecting device, a fixed ring, a load-bearing plate and a fixed plate are arranged, the fixedring prolongs the conduction time of the acting force through a spiral structure, so that the acting force to an object is reduced under the same momentum change to play a damping and buffering role,the acting force to the load-bearing plate from the detecting mechanism is buffered, the load-bearing plate and the fixed plate are unlikely to be smashed, and the service life of the new material conveniently transmitted rapid detecting device is prolonged.

The invention belongs to the technical field of electroplating equipment processing, and particularly relates to electroplating equipment processing and conveying equipment with an automatic sorting function. The electroplating equipment processing and conveying equipment comprises a base, a driving mechanism and an extension plate, a fixing ring is fixed above the base, a stress plate is arranged above the fixing ring, a supporting rod is arranged on the left side of the driving mechanism, a stretching mechanism is arranged in the extension plate, a conveying mechanism is connected to the upper portion of the driving mechanism, an inclined plate is arranged on the left side of a placing mechanism, and a placing box is installed on the right side of the driving mechanism. The electroplating equipment processing and conveying equipment with the automatic sorting function can bear impact force, is good in damping performance, does not shake easily, consumes less manpower when being used, facilitates conveying of articles, does not occupy extra space when not being used, can provide a working position for a user, does not need to rely on an external device when the articles need to be manually processed, is convenient to use, and can automatically sort the articles.

The invention discloses a building steel structure composite beam structure convenient to assemble, and relates to the technical field of building steel structures. The building steel structure composite beam structure comprises a left section beam, a middle section beam, a right section beam, connecting channel steel, a first connecting bolt, a corner bracket, a second connecting bolt, a third connecting bolt, a diagonal draw bar, a buffer component, a suspension rod, a support plate and a plate spring, wherein one end of the connecting channel steel is clamped at two ends of the middle section beam and is fastened and connected through the first connecting bolt, and the left section beam and the right section beam are located on the left side and the right side of the middle section beam respectively. According to the building steel structure composite beam structure convenient to assemble, the left section beam, the middle section beam and the right section beam are in butt joint through the connecting channel steel, so that assembling construction is facilitated, and meanwhile certain intervals are reserved at the joint between the left section beam and the middle section beam and the joint between the right section beam and the middle section beam; and the connecting channel steel is matched with the first connecting bolt, so that fine adjustment and improvement of structural stability are facilitated, and the design structure is stabler and more compact.