19 results about "Metallic conduction" patented technology

The invention discloses a miniaturized low-profile flexible ocean galvanic couple type pH sensor and a preparation method thereof, and aims to solve the problems of large profile thickness and insufficient reliability of the conventional flexible pH sensor. A working electrode system and a reference electrode system in the miniaturized low-profile flexible ocean galvanic couple pH sensor are arranged on a flexible polyimide substrate, and the working electrode system comprises an iridium oxide working electrode, a first metal conduction circuit layer and a first metal bonding pad; the iridium oxide working electrode is connected with the first metal bonding pad through the first metal conduction circuit layer, the reference electrode system comprises a reference electrode, a second metal conduction circuit layer and a second metal bonding pad, and the reference electrode is connected with the second metal bonding pad through the second metal conduction circuit layer. The pH response performance is remarkably improved by utilizing the nanocrystalline iridium oxide sensing layer, the sensitivity reaches 72.76 mV / pH, and 16.84 s quick response is realized in a 3m / s high-flow-speed marine environment.

An energy storage dielectric capacitor disclosed by the present invention comprises an explosion-proof assembly, the explosion-proof assembly comprises a first pressure relief hole formed in a cover body and a cover body covering the top end of the cover body, the cover body is provided with a plurality of second pressure relief holes, the second pressure relief holes and the first pressure relief hole form a pressure relief channel communicating the interior of a shell with the outside, and a core is electrically connected with a first conductive column. The end, away from the core, of the first conductive column extends into the first pressure relief hole, the terminal is fixedly connected with a second conductive column, and the end, away from the terminal, of the second conductive column is located on the inner side of the cover body and provided with a metal conduction block. The explosion-proof assembly with a linkage function is integrated on the cover body, in a normal working state, the movable part of the metal conduction block abuts against the first conductive column under the action of pre-tightening force, normal operation of the capacitor is guaranteed, when the pressure in the shell is abnormally increased due to a fault, internal air pressure directly acts on the movable part, and the safety of the capacitor is guaranteed. And the electrical connection between the core and the external circuit is immediately disconnected, thereby preventing continuous input of fault current from aggravating thermal runaway.

The application provides a steam delivery pipeline leakage detection system, which comprises a metal conducting rod fixedly connected to the outer wall of a steam delivery pipeline, a sensor connected to the metal conducting rod, a signal analyzer electrically connected to the sensor, and a DCS control center electrically connected to the signal analyzer, and the sensor is used for collecting the vibration sound signal of the metal conducting rod. The steam delivery pipeline leakage detection system of the application can accurately and timely determine the leakage and the position of the leakage point by using the metal conducting rod connected to the steam delivery pipeline to transmit the vibration sound generated by the intense friction between the leakage medium and the pipeline wall, and the sound signal is not obviously attenuated in the transmission process due to the solid medium transmission, the transmission distance is long, and the sound signal is not easily interfered by other signals, the false positive rate of the leakage detection is effectively reduced, the operation and maintenance cost of the steam delivery pipeline is significantly reduced, and the industrial safety is improved.

The utility model relates to the technical field of PCBs, in particular to a vehicle-mounted PCB which comprises a circuit board body, a connecting frame is arranged on the outer side of the circuit board body, heat dissipation assemblies are arranged at the two ends of the connecting frame and located on the outer side of the circuit board body, and buffering assemblies are arranged on the periphery of the bottom of the circuit board body. The heat dissipation assembly is used for carrying out heat dissipation treatment on the circuit board main body, the heat dissipation assembly is composed of a conduction plate and cooling fins, the conduction plate is located on the outer side of the connecting frame, and the multiple sets of cooling fins are all located at the end, away from the connecting frame, of the conduction plate; the circuit board comprises a circuit board main body and a conduction plate, the circuit board main body is provided with a buffer assembly, the buffer assembly is used for carrying out buffer processing on vibration suffered by the circuit board main body, the conduction plate is a metal conduction plate, a plurality of groups of through grooves are formed in the conduction plate, and the plurality of groups of through grooves are distributed in the conduction plate at equal intervals. According to the utility model, the overall practicability of the PCB circuit board can be improved through the design.

The utility model provides a one-way bearing structure which is applied between an input piece and an output piece, the one-way bearing is provided with a plastic mounting seat, a plurality of pin rollers and a metal conduction seat, the plastic mounting seat is provided with a plurality of mounting grooves which are arranged at equal intervals and are through in the radial direction, the pin rollers are accommodated in the opposite mounting grooves, and the metal conduction seat is connected with the pin rollers. And a plurality of conduction inclined surfaces corresponding to the mounting grooves are formed on the peripheral surface of the metal conduction seat corresponding to the plastic mounting seat, so that the rollers on the plastic mounting seat can selectively press the metal conduction seat by utilizing the opposite conduction inclined surfaces to generate a one-way driving effect. Therefore, the weight of the one-way bearing can be reduced by utilizing the plastic mounting seat which can be molded, and the effects of light weight, cost reduction and easiness in processing can be achieved under the condition that the strength of transmission power is not influenced.

The invention discloses a miniaturized low-profile flexible ocean galvanic couple type pH sensor and a preparation method thereof, and aims to solve the problems of large profile thickness and insufficient reliability of the conventional flexible pH sensor. A working electrode system and a reference electrode system in the miniaturized low-profile flexible ocean galvanic couple pH sensor are arranged on a flexible polyimide substrate, and the working electrode system comprises an iridium oxide working electrode, a first metal conduction circuit layer and a first metal bonding pad; the iridium oxide working electrode is connected with the first metal bonding pad through the first metal conduction circuit layer, the reference electrode system comprises a reference electrode, a second metal conduction circuit layer and a second metal bonding pad, and the reference electrode is connected with the second metal bonding pad through the second metal conduction circuit layer. The pH response performance is remarkably improved by utilizing the nanocrystalline iridium oxide sensing layer, the sensitivity reaches 72.76 mV / pH, and 16.84 s quick response is realized in a high-flow-velocity marine environment of 3 m / s.

A handling device for biological particles includes a substrate, a metal conductive layer, a working electrode and at least one dielectric layer. The metal conductive layer is on the substrate. The working electrode is arranged on the metal conducting layer and is electrically connected with the metal conducting layer. The at least one dielectric layer covers the metal conducting layer, the at least one dielectric layer is provided with a first groove, the first groove exposes the working electrode, the top surface of the working electrode is higher than the bottom of the first groove, and the at least one dielectric layer contacts the side wall of the working electrode. The first groove can prevent the working electrode from contacting and damaging the target biological particles.

The invention relates to the technical field of composite machining machine tools, in particular to a numerical control drilling and milling composite machine tool for multi-angle synchronous drilling of plastic parts, and is characterized in that a pneumatic cleaning structure is mounted in a rotary cutter head and on the side wall of a rack main body, and the cleaning structure is used for pneumatically cleaning disintegrating slag adhered to the surface of a cutter; the rotary cutter head is provided with an abrasion detection structure aiming at the cutter, the abrasion detection structure is in linkage with a vibration clearing assembly aiming at the cutter, power generated in the lifting process of the spindle box is ingeniously utilized through a pneumatic clearing structure, and storage and release of high-pressure gas can be completed without additionally arranging a power source; vortex airflow is formed through guiding of a spiral groove of the conical flow guide cover, the effects of flow gathering pressurization and rotary washing are achieved, and the vortex airflow can be precisely attached to the surface of the cutter to take away attached disintegrating slag; vibration generated by the vibration clearing assembly through collision of the iron block is transmitted to the cutter through the metal conduction rod, so that stubborn residues are loosened, and rapid blowing-off of airflow is facilitated.

The invention relates to the technical field of combustible gas detectors, in particular to an explosion-proof combustible gas detector which is characterized in that a cooling structure is arranged in a shell and comprises a hollow pipe, a metal conduction rod is fixed on the inner wall of the shell, and the hollow pipe is fixed in the shell through the metal conduction rod; the bottom of one side of the shell is provided with a hollow bin, a first filter screen is installed at the bottom of the hollow bin, an exhaust fan is installed in the hollow bin, one end of the hollow pipe is located in the hollow bin, and a first air inlet hopper is fixed to one end of the hollow pipe. When electronic components in the shell generate heat and need to be cooled, the exhaust fan is started, external air is sucked into the hollow bin, impurities are filtered out through the first filter screen, then the external air enters the hollow pipe through the first air inlet hopper, heat in the shell is transmitted into the hollow pipe through the metal conduction rod, then cooling in the shell is achieved, and hot air after heat absorption flows into the hollow box to be reused.

The utility model provides a piezoelectric focusing shock wave device which comprises a decorative face shell, a light bar, an upper cover outer shell, a circuit board, a middle outer shell, a key, a key board, a lower cover outer shell, a ceramic crystal module, a metal conduction shell, a gel pad and a fixing outer ring. The circuit board is installed between the upper cover shell and the middle shell, the middle shell is connected with the lower cover shell, the ceramic crystal module is installed in the lower cover shell and connected with the metal conduction shell, the gel pad is installed on the metal conduction shell, and the gel pad and the lower cover shell are installed together through the fixing outer ring. According to the device, non-invasive treatment is carried out on a treatment part through piezoelectric type shock waves, fine and accurate penetration depth can be achieved, the device is suitable for pain symptoms of different depth degrees, and more treatment requirements are met. Piezoelectric focusing shock waves adopt a reverse hemispherical surface integration technology, piezoelectric elements are integrated, and frequency noise is reduced.

The utility model belongs to the technical field of cryogenic separation equipment, and particularly relates to a low-temperature supporting structure for a cryogenic CO cold box in a natural gas-to-ethylene glycol device, which comprises a foundation slab and an equipment supporting assembly which are arranged in a box body, and the equipment supporting assembly comprises a plurality of supporting ring pipes and supporting lugs corresponding to the supporting ring pipes. The supporting lug is arranged at the top end of the supporting ring pipe, a cold insulation assembly is arranged between the bottom end of the supporting ring pipe and the foundation bottom plate, a plurality of heat insulation skylights are formed in the supporting ring pipe in the axial direction, and the supporting ring pipe and the box body are both filled with pearlife. According to the utility model, the heat insulation skylight effectively reduces the loss of cold energy conducted by metal, the pearlife in the support ring pipe effectively blocks the loss of cold energy conducted by convection, and the design of the cold insulation component further avoids direct contact between the support ring pipe and the foundation slab, so that the formation of a cold bridge is prevented, and the cold brittleness of the foundation slab is avoided; and safe operation of equipment is ensured.

The utility model discloses a kneading machine reaction kettle with a heat exchange function, which comprises a kneading reaction kettle, a processing support and a stirring kneading structure, the kneading reaction kettle is mounted on the processing support, and the stirring kneading structure is mounted on the inner side of the kneading reaction kettle; the utility model relates to the technical field of mixing and kneading machines, a stirring driving machine drives a stirring gear box and a stirring driving shaft to rotate, and meanwhile, a lifting circular ring is accurately controlled by utilizing magnetic transmission of a bidirectional coiled electromagnet to a metal conduction circular ring; according to the design, the distance of the lifting circular ring can be adjusted according to needs, so that raw materials are mixed and extruded, and the mixing efficiency and uniformity are improved; the lifting circular ring and the lifting sleeving arc pipe on the lifting circular ring are driven to perform stable lifting and horizontal rotary stirring through the magnetic repulsion effect of the lifting circular ring magnet; the multi-angle mixing mode is beneficial to breaking the agglomeration phenomenon of the raw materials and realizing more thorough mixing.

The invention discloses an integrated baking and aroma improving machine and method, and relates to the technical field of tea processing equipment.The integrated baking and aroma improving machine adopts an upper chain plate type drying and lower temperature control roller stir-drying integrated structure, combines an electric hot air slow drying and metal conduction composite process, and gently reduces moisture of raw tea through low-temperature electric hot air through an upper chain plate type drying machine; fresh substances such as amino acid are reserved to the greatest extent; the lower roller roasting machine adopts a metal conduction mode, tea leaves are roasted for a short time in a low-moisture state, aroma substance release is accurately triggered, the breakage rate is far lower than that of a traditional roller roasting machine, fresh and mellow flavor balance is achieved, and meanwhile it is guaranteed that the tea leaves are complete in appearance.

The utility model belongs to the technical field of winding devices, and discloses a static electricity removing winding device which comprises a supporting platform, a transmission roller is installed at the upper end of the left side of the supporting platform, a positioning frame is fixed to the middle of the supporting platform, guide roller assemblies are installed at the upper ends of the two sides of the positioning frame, and a first sliding rail is connected to the upper end of the right side of the supporting platform. The upper end of the first sliding rail is connected with a sliding block, and a supporting plate is fixed to the upper end of the sliding block. A positioning shaft is connected to the upper end of the supporting plate, a winding roller is arranged above the first sliding rail, a supporting frame is fixed to the upper end of the positioning frame, a movable frame is arranged at the lower end of the supporting frame, and a static electricity removing roller is connected to the lower end of the movable frame. According to the winding device capable of removing static electricity, the metal conduction structure is arranged, the winding device can make contact with a thin film and conduct static electricity during winding, the static electricity can be removed synchronously during winding, meanwhile, the positioning shaft with the adjustable distance is arranged in a matched mode, the winding roller can be rapidly disassembled and assembled, and the operation convenience is improved.

According to the welding fixture provided by the invention, the cooling runner module, the nitrogen cooling module and the semiconductor refrigeration module are arranged to form a multi-stage collaborative heat dissipation system, so that layering and accurate heat dissipation can be realized according to heat characteristics in the laser welding process; the basic heat of the product can be quickly transferred; the nitrogen cooling module directly and directionally cools a high-temperature welding point through a spraying mechanism, so that local instantaneous heat accumulation of the welding point is effectively inhibited; the semiconductor refrigeration module actively absorbs local heat of the to-be-welded product through the cold end of the semiconductor refrigeration piece and discharges the local heat outwards through the hot end, and an active refrigeration heat dissipation path is formed. The three parts work cooperatively, so that the overall heat dissipation efficiency is greatly improved, the problem of thermal deformation caused by insufficient heat dissipation of traditional single metal conduction can be effectively relieved, the mutual coupling influence of thermal deformation of multiple welding spots is remarkably inhibited, the flatness precision of a to-be-welded product is guaranteed, and then the welding yield is improved.

The utility model discloses a mechanical-electrical integration differential pressure gauge, which relates to the differential pressure measurement technology and comprises a protection box, a differential pressure gauge main body is arranged inside the protection box, a metal conduction plate is arranged inside the protection box and outside the differential pressure gauge main body, and the metal conduction plate is fixedly connected with the protection box. A liquid cavity is formed between the interior of the protection box and the metal conduction plate, conveying pipes are fixedly installed at the positions, close to the lower ends, of the two sides of the protection box, a temperature probe is fixedly installed in the middle of the top of the protection box, and an electric heating rod is fixedly installed at the position, close to one side, of the top of the protection box; and a refrigeration rod is fixedly mounted on the other side of the top of the protection box in a penetrating manner. The temperature of the environment where the differential pressure gauge main body is located can be reasonably adjusted according to a medium measured by the differential pressure gauge main body, and the influence of temperature change on the measurement result of the differential pressure gauge main body is reduced.

The welding fixture provided by the application can realize layered and accurate heat dissipation for the heat characteristics in the laser welding process through the multi-stage cooperative heat dissipation system composed of a cooling flow channel module, a nitrogen cooling module and a semiconductor refrigeration module. The basic heat of the product can be quickly transferred through the conduction effect of the cooling flow channel plate and the support block of the cooling flow channel module. The nitrogen cooling module directly cools the high-temperature welding point through the jet mechanism, effectively inhibiting the local transient heat accumulation of the welding point. The semiconductor refrigeration module actively absorbs the local heat of the product to be welded through the cold end of the semiconductor refrigeration sheet, and discharges the heat to the outside through the hot end, forming an active refrigeration heat dissipation path. The three work cooperatively, greatly improving the overall heat dissipation efficiency, effectively alleviating the heat deformation problem caused by the insufficient heat dissipation of the traditional single metal conduction, significantly inhibiting the mutual coupling effect of multi-welding point heat deformation, ensuring the flatness accuracy of the product to be welded, and further improving the welding yield.

The invention relates to the technical field of vehicle-mounted antennas, and discloses a vehicle-mounted communication antenna which is mainly composed of a bottom plate, a base, a UHF low-frequency antenna element, a substrate plate, a main conductor radiation patch array and a reflection conductor radiation patch array, the main conductor radiation patch array comprises a feed-in part and a radiation part, the feed-in part comprises a first feed-in connecting part, and the radiation part comprises a second feed-in connecting part. The two ends of the first feed-in connecting part are symmetrically connected with second feed-in connecting parts, the reflection conductor radiation patch array comprises a feed-in part and a radiation part, the feed-in part comprises the first feed-in connecting part, and the two ends of the first feed-in connecting part are symmetrically connected with the second feed-in connecting parts. And the center of the main conductor feed-in connecting part I and the center of the reflection conductor feed-in connecting part I are respectively connected with the probe of the coaxial feed element and the metal conducting layer. According to the antenna structure, different radiation patches are designed, the radiation bodies are asymmetrically arranged, and ports are physically isolated, so that the characteristics of linear gain, omnidirectional high gain and high isolation can be met at the same time.

The invention discloses a high-voltage explosion-proof metallized film capacitor which comprises an outer shell, a capacitor core is arranged in the outer shell and electrically connected with a first wire, the top of the outer shell is in threaded connection with a sealing cover, the outer wall of the sealing cover is fixedly connected with pins, and the pins are fixedly connected with a second wire. The sealing cover is provided with a circuit breaking cavity, and one end of the first wire and one end of the second wire extend into the circuit breaking cavity. High-pressure gas generated in the outer shell firstly enters the pressure relief cover, then pushes the second piston to move towards the side away from the pressure relief cover, and pushes the metal conduction piece to move in the circuit breaking cavity through the second piston rod until the metal conduction piece is electrically disconnected with the first wire and the second wire. At the moment, the first wire and the second wire form an open circuit and stop working, pressure is released through the pressure release part, the capacitor is prevented from being still powered on and running in the pressure release process, the explosion risk is reduced, and the service life is prolonged.