587 results about "Electrical conduction" patented technology

Disclosed herein are ultrasound transducers that are selectively insulated to thereby enable the transducers to be exposed to an electrically conductive fluid without causing a short circuit between electrodes of the transducers. Such a transducer includes a piezoelectric transducer body having a first surface and a second surface that are spaced apart from one another and do not intersect with one another. The ultrasound transducer also includes a first electrode disposed on the first surface, a second electrode disposed on the second surface, and an electrical insulator covering only one of first and second electrodes and configured to inhibit electrical conduction between the first electrode and the second electrode when the ultrasound transducer is placed within an electrically conductive fluid. Also disclosed are apparatuses and systems that include such a transducer. Related methods are also disclosed herein.

The utility model provides an electrical connection structure of one or more sections of intelligent dimming films. The electrical connection structure specifically comprises a dimming film body, a flexible circuit board and a control unit. Wherein U-shaped long grooves are designed between independent circuits of the flexible circuit board, and air holes are formed in the conductive adhesive film layer connecting the dimming film body and the flexible circuit board. According to the design of the electrical conduction structure part of the dimming film, the ACF conductive adhesive lamination is used for replacing the solder paste welding technology, the risk of circuit pseudo soldering is avoided, special design is carried out on the FPC and the ACF conductive adhesive, the operation stability of the dimming film is improved, and the risks of short circuit and open circuit which are easily generated by circuit connection are avoided.

The embodiment of the invention provides a high-density redistribution interconnection packaging structure and a preparation method thereof, and relates to the technical field of chip packaging, and the packaging structure comprises a substrate rewiring layer, a first chip, a first plastic package body, a coating layer, an integrated rewiring layer, a first stacking rewiring layer, a second chip and a second plastic package body. Compared with the prior art, according to the high-density redistribution interconnection packaging structure provided by the embodiment of the invention, the first heat dissipation columns are additionally designed, so that the heat dissipation performance can be greatly improved, and an overheating phenomenon is slowed down. And meanwhile, the first heat dissipation column can be embedded in the first plastic package body and the coating layer at the same time, so that the binding force of each layer of the package structure is greatly improved, the structural stability is ensured, and the warping phenomenon of the package structure is relieved. Meanwhile, electrical conduction is achieved through the first conductive columns and the second conductive columns, parasitic inductance of the wiring layers is reduced, and the phenomena of short circuit, overheating and the like between the wiring layers caused by the electric leakage phenomenon are relieved.

The invention belongs to the technical field of graphene film preparation, and particularly relates to a graphene thick film preparation method, which comprises: mixing a boric acid aqueous solution and a graphene oxide dispersion liquid to obtain a boric acid / graphene oxide mixed dispersion liquid; after the mixed dispersion liquid of boric acid / graphene oxide is coated, a solvent is evaporated, and a boric acid doped graphene oxide film is prepared; and stacking a plurality of layers of boric acid doped graphene oxide films, performing pressurization treatment, and performing annealing treatment in an inert atmosphere to obtain the graphene thick film. The preparation method provided by the invention not only solves the problem of film interface effect of the graphene thick film in the prior art and remarkably improves the conductivity of the graphene thick film, but also realizes effective regulation and control of the thickness of the graphene thick film through a simple stacking mode, and the preparation method is suitable for large-scale production. Powerful support is provided for application of the graphene thick film in the fields of electrochemical energy storage, electromagnetic shielding, heat dissipation and electric conduction.

A chuck (100) of a wafer holding device and a wafer holding device. The chuck comprises a chuck frame (110); a plurality of contact members (120), wherein the plurality of contact members (120) are evenly distributed on the chuck frame (110), each of the contact members (120) comprises a fixing portion (121), a connecting portion (122) and a contact portion (123), one end of the fixing portion (121) is connected to an upper end of the connecting portion (122), and a lower end of the connecting portion (122) is connected to the contact portion (123); and a limiting member (400) fixed to the chuck frame (110), wherein the limiting member (400) is used for limiting the connecting portion (122) of each of the contact members (120) so as to reduce the moment arm of the connecting portion (122). By means of providing the limiting member (400), the moment arm of the connecting portion (122) of each of the contact members (120) is reduced, so that the deformation of the connecting portion (122) is within an elastic limit thereof. After a wafer leaves the chuck, an applied external force is removed, so that the connecting portion (122) automatically returns to an original shape. When the next wafer enters the wafer holding device for electroplating, the connecting portion (122) has returned to the original shape and can come into uniform contact with the wafer, thereby ensuring uniform electrical conduction and improving process quality.

The invention belongs to the technical field of cable installation devices, and particularly relates to an aerial cable insulation installation column which comprises a rectangular column, a clamping device and a stretching adjusting device, the clamping device is arranged in the middle of the rectangular column, and the stretching adjusting device is installed at the top of the clamping device; the clamping device comprises an installation platform, a fixed clamp and a movable clamp, the fixed clamp and the installation platform are integrally formed, the fixed clamp extends downwards, the movable clamp is inserted into the installation platform and located above the fixed clamp, clamping grooves are formed in the opposite sides of the fixed clamp and the movable clamp, and the fixed clamp and the movable clamp form a cable clamp. A limiting buckle is arranged on one side, away from the rectangular column, of the cable clamp; according to the scheme, the cable installation equipment which is small in size and convenient to rapidly install is provided for cable installation requirements in special environments such as pits, tunnels and mine holes; multiple insulation barriers are adopted, an electric leakage conduction path is effectively blocked, the excellent insulation performance can still be kept even in a humid and dusty environment, and the electric shock risk is greatly reduced.

A component carrier (100) comprising: a stack (102) comprising at least one electrically conductive layer structure (104) and at least one inorganic layer structure (106) wherein the at least one inorganic layer structure (106) has a planar first main surface (108) and an opposite planar second main surface (110); a geometrically discontinuous region (112) at the first main surface (108); and a reinforcing layer structure (114) at the second main surface (110), the reinforcing layer structure (114) at least partially overlapping the geometrically discontinuous region (112) in the lateral direction. The present disclosure also provides a method of manufacturing a component carrier (100).

The utility model discloses a double-coil contactor, and the contactor comprises a power module which is used for accessing an external power supply voltage to generate a DC voltage, so as to enable a coil loop to be electrically conducted, and carrying out the voltage reduction of the DC voltage, and obtaining a power supply voltage; the external power supply is an AC power supply or a DC power supply; the sampling comparison module is used for sampling the direct-current voltage and generating a working voltage according to the power supply voltage when the sampling voltage is greater than a preset voltage threshold value; the driving module is used for controlling the pull-in coil loop to be electrically conducted based on the direct current voltage in response to the power supply voltage and the working voltage, and controlling the pull-in coil loop to be electrically disconnected in response to the trigger signal; the time delay module is used for generating a trigger signal when the duration of electrical conduction of the pull-in coil loop reaches a preset duration. According to the double-coil contactor, the AC voltage of the AC power supply can be converted into the DC voltage for control through the power supply module, and the application range of the double-coil contactor is greatly expanded.

The utility model discloses a high-frequency welding device, which relates to the technical field of high-frequency welding and comprises two welding units capable of simultaneously welding a plurality of workpieces respectively. The electric conduction mechanism is arranged between the two welding units and used for controlling power on and power off of the two welding units; each welding unit comprises two groups of welding mechanisms, the two groups of welding mechanisms are respectively provided with welding surfaces which are oppositely distributed, and at least one of the welding surfaces is provided with a protective coating. According to the high-frequency welding machine, the welding unit and the electric conduction mechanism are arranged in a matched mode, simultaneous welding of a plurality of workpieces can be achieved while energy of the high-frequency welding machine is not increased, and the production efficiency is improved; the protective coating is arranged on the welding surface of the welding mechanism, so that ignition and shutdown caused by too short distance of the welding surface when the welding mechanism is used for welding a workpiece are prevented, and the service life of equipment is effectively prolonged.

A lead-acid storage battery gel electrolyte resistance testing device belongs to the technical field of lead-acid storage battery testing and comprises a support, a container is arranged on the support, and a pressing mechanism is arranged at the upper end of the container. According to the invention, a four-terminal alternating current method measurer is adopted to measure the electrolyte resistance, so that the precision of electrolyte resistance measurement is improved. Graphite is used as an electrode, so that the accuracy of electrolyte resistance measurement is improved, in addition, in order to increase the contact area between the electrolyte and the lower graphite disc and the contact area between the electrolyte and the upper graphite disc, hemispherical contacts are arranged on the contact surface between the lower graphite disc and the electrolyte, and the contact area between the lower graphite disc and the upper graphite disc is increased. A lower convex ring and a radiation strip are arranged on the contact surface of the upper graphite disc and the electrolyte, in addition, the end parts of the lower graphite disc and the upper graphite disc are designed through a conductive conical column and a connecting conical column which are made of copper alloy and through a conical surface structure, and meanwhile, electric force compound grease with copper, aluminum and other particles is filled between the conductive conical column and the connecting conical column; therefore, the electrical conductivity is improved.

A power semiconductor device includes a semiconductor structure comprising an active region, and a plurality of stress relief trenches in the semiconductor structure laterally between the active region and at least one edge of the semiconductor structure. The stress relief trenches respectively comprise opposing sidewalls and a dielectric material and / or a semiconductor material therebetween, and do not contribute to electrical conduction between first and second terminals of the power semiconductor device. Related devices and fabrication methods are also discussed.

The utility model relates to the field of sensor packaging, in particular to an embedded image sensor packaging structure which comprises a substrate, an annular heat conduction groove and a heat dissipation assembly, heat is efficiently collected through a heat dissipation copper sheet, and heat is efficiently conducted through sintered silver paste. Heat absorbed by the heat dissipation copper sheet can be quickly transmitted to the vertical heat conduction through holes in the substrates, so that the heat is efficiently transmitted between the substrates, the heat dissipation path is expanded, the heat dissipation efficiency is improved, the electrical conduction between the heat dissipation copper sheet and the vertical heat conduction through holes is ensured, the electrical performance of the whole packaging structure is more stable and reliable, and the service life of the packaging structure is prolonged. The image sensor is simple in structure and convenient to use, signal interference and transmission loss are reduced, the quality and stability of output signals of the sensor are guaranteed, the trapezoidal waterproof dam is formed at the edge of the double-layer stepped infrared optical filter, the waterproof capacity can be further enhanced, water vapor is prevented from entering the image sensor from the edge of the optical filter, and it is guaranteed that the image sensor can work normally in a humid environment.

A neurostimulator implant is provided that includes a circuitry unit having first and second ends, a conducting side, and an opposing side. First and second electrodes are disposed on an outer surface of the circuitry unit so as to circumscribe the circuitry unit. Circuitry is disposed within the circuitry unit. An insulating member is disposed on the opposing side of the circuitry unit such that, on the opposing side, each electrode is covered by the insulating member by being sandwiched between a first side of the insulating member and the circuitry unit, such that the insulating member inhibits electrical conduction from the electrodes into tissue of a subject. A second side of the insulating member, opposite the first side, defines a generally flat side of the implant facing away from the first and the second electrodes of the circuitry unit. Other embodiments are also described.

To reduce, in an annular conductive member that is fitted between an outer ring and an inner ring of a rolling bearing into which lubrication oil is supplied, the electrical resistance and stabilize contact for energization.SOLUTION: An annular conductive member 1 is fitted between an outer ring 11 and an inner ring 12 of a rolling bearing and has a flow passage F penetrating the inside and outside of the rolling bearing. The annular conductive member has an elastic body 4 made of rubber material, in which a conductive fiber 5 is integrated with a surface layer portion on one surface side of the elastic body, and a part of the conductive fiber 5 is exposed from the surface to form a conductive texture part A. An outer-diameter-side conductive texture portion, which is an outer-diameter-side portion of the conductive texture part A located at an outer peripheral portion of the elastic body 4, contacts the outer ring 11, and an inner-diameter-side conductive texture portion, which is an inner-diameter-side portion of the conductive texture part A located at an inner peripheral portion of the elastic body 4, contacts the inner ring 12.SELECTED DRAWING: Figure 2

The invention provides a liftable cup holder and a vehicle. The liftable cup holder comprises a shell, a cup holder body and a cup holder body, the tray can move up and down relative to the shell; and the atmosphere lamp assembly comprises a first wiring end arranged on the tray and a second wiring end arranged on the shell, and the length of an electric connection path formed between the first wiring end and the second wiring end can be changed. According to the lifting cup stand, electricity conduction is achieved through sliding point contact of the conducting strips, and the problem that abnormal sound is generated due to the fact that a wire harness falls and swings at will is fundamentally solved.

The utility model relates to the technical field of fitness equipment, and discloses an over-current conduction structure and fitness equipment, and the over-current conduction structure comprises a first sliding conductive structure and a second sliding conductive structure. The first sliding conductive structure is arranged between the pedal plate and the rotating shaft of the pedal plate and is electrically connected with an electrode on the pedal plate. The second sliding conductive structure is arranged between the crank and the output shaft of the resistance motor, the second sliding conductive structure is electrically connected with the first sliding conductive structure through the middle conductive structure, and the middle conductive structure is arranged on the crank. The over-current conduction structure can be completely hidden in the equipment, and the problems that when electric connection between the pedal and the equipment body is achieved through an exposed electric wire, winding is likely to happen, and abrasion and electric leakage are likely to happen are solved.

The application discloses a lighting device, characterized in that comprising: a lamp shell and a lamp head, the lamp shell is connected with the lamp head and forms a closed space; at least one light emitting diode filament, the light emitting diode filament is arranged in the closed space; a stem, the stem is connected to the lamp head and is in electrical conduction with the light emitting diode filament; the light emitting diode filament comprises: a chip strip structure; a light conversion unit wrapping the chip strip structure; and electrodes respectively located at both ends of the length direction of the chip strip structure and electrically connected with the chip strip structure; wherein, at least part of the electrodes is wrapped in the light conversion unit; the chip strip structure comprises a substrate, the substrate comprises a first end and a second end away from the first end, and a deposition section between the first and second ends; the deposition section comprises a plurality of deposition units, the deposition units are provided with a linking layer; and a conductor layer for electrically connecting each deposition unit.

A signal supply unit (11) in a root canal treatment system (1) can supply a wetness detection signal for detecting the wetness of a root apex (2a1) to a root canal electrode (31) and a counter electrode (32). The root canal treatment system (1) includes: an operation unit (13) that is operated to switch between a state in which the signal supply unit (11) supplies an apical position detection signal and a state in which the signal supply unit (11) supplies the wetness detection signal; and a display unit (14) and a sound output unit (15) as notification units for notifying the electrical conduction state of the root canal electrode (31) and the counter electrode (32) which have been supplied with the wetness detection signal.

The embodiment of the invention provides an antenna system and terminal equipment, the antenna system is used for the terminal equipment, the antenna system comprises a first radiator, a second radiator, a first feed structure, a second feed structure and an adjusting unit, and a gap is formed between the first radiator and the second radiator. The adjusting unit is connected between the first radiating body and the second radiating body, the adjusting unit has an on state and an off state, and the adjusting unit is used for realizing electric conduction between the first radiating body and the second radiating body in the on state. When the adjusting unit is in a conducting state, the first feed structure receives feed and excites the first radiator and the second radiator to generate third resonance, or the second feed structure receives feed and excites the first radiator and the second radiator to generate fourth resonance. According to the invention, the adjustment unit is conducted so that different radiators in the antenna system participate in radiation together, the radiation performance of the antenna system can be optimized, and the communication requirement of the terminal equipment is met.

The invention provides an electrostatic interference elimination method for an air negative ion product. The air negative ion product comprises a negative high voltage electrode and a relative electrode. Particularly, the negative air ion product is provided with a static electricity elimination mechanism which is characterized in that a negative high-voltage electrode and an opposite electrode are electrically connected through an electric conduction medium, so that high voltage formed between the negative high-voltage electrode and the opposite electrode is applied to the electric conduction medium, and negative charges are transmitted to the opposite electrode along the electric conduction medium to be neutralized with positive charges; and static elimination is realized. Furthermore, the obvious reduction of the negative ion concentration is taken as the basis for executing the static elimination mechanism, and the execution is ended after 3-10 seconds. Or the obvious reduction of the working current of the negative ion generator circuit is taken as the basis for executing the static elimination mechanism, and the execution is ended after 3-10 seconds. The problem of electrostatic interference can be effectively solved, the air negative ion product can efficiently, stably and continuously generate high-concentration air negative ions, and a positive health effect is generated for a product user.

The invention discloses an efficient silicon controlled rectifier, and relates to the technical field of rectifiers, the efficient silicon controlled rectifier comprises a circuit board, a radiator is arranged at the top end of the circuit board, a placement bin is arranged at the top end of the circuit board, the silicon controlled rectifier is arranged in the placement bin, and a heat-resistant motor is arranged in the placement bin; the output end of the heat-resistant motor is in transmission connection with a speed change mechanism through a coupler, a bimetallic strip is arranged in the containing bin, and a push rod is arranged at one end of the bimetallic strip. The silicon controlled rectifier is pushed in along a sliding groove of a placement bin to complete installation, a toothed plate of the rectifier drives a gear to rotate, so that a first connecting rod pushes a second connecting rod to make contact with a power-on socket to achieve electricity conduction, and the temperature rises when the rectifier works; according to the structure, heat dissipation can be automatically adjusted according to the temperature, maintenance is easy and convenient, and a plurality of components do not need to be detached during replacement.

A splicing device and a lamp, the splicing device comprises a male connector, a male side conductive assembly, a female connector and a female side conductive assembly; the male side conductive assembly comprises a first conductive piece and a second conductive piece connected with the male connector; the female connector is detachably connected with the male connector; the female side conductive assembly comprises a third conductive piece connected with the female connector and a fourth conductive piece connected with the female connector; the third conductive piece is used for docking with the first conductive piece, and the fourth conductive piece is used for docking with the second conductive piece to transmit current; one of the third conductive piece and the first conductive piece is elastic; one of the fourth conductive piece and the second conductive piece is elastic, through the elastic contraction of one side of the third conductive piece and the first conductive piece and the elastic contraction of one side of the fourth conductive piece and the second conductive piece, good abutting contact can be maintained when there is vibration in the installation site or the long lamp tube is bent, the electrical conduction effect is maintained well, and the lamp tube can be normally illuminated.

The invention belongs to the technical field of image processing, and discloses an automobile wire harness terminal evaluation system and method based on static image AI analysis. Comprising the steps that images of automobile wire harness terminals are acquired, and the images of the automobile wire harness terminals comprise a first automobile wire harness terminal image and a second automobile wire harness terminal image; detecting a contact pin of the automobile wire harness terminal according to the first automobile wire harness terminal image, and judging whether the contact pin of the automobile wire harness terminal is deformed or not; detecting the crimping quality of the automobile wire harness terminal of which the contact pin is not deformed, and judging whether the crimping quality of the automobile wire harness terminal is qualified or not; performing electrical conduction detection on the automobile wire harness terminal with qualified crimping quality, judging whether the electrical conduction detection of the automobile wire harness terminal is qualified or not, if the electrical conduction detection of the automobile wire harness terminal is qualified, determining that the whole automobile wire harness terminal is qualified, and if the electrical conduction detection of the automobile wire harness terminal is unqualified, determining that the whole automobile wire harness terminal is unqualified; and the evaluation accuracy is further improved.

An apparatus (100) for treating a portion of a surface of at least one electrically conductive layer structure (210) of a stack (201) of a printed circuit board or the like (200) is described, where the apparatus (100) comprises a surface treatment unit (120), the surface treatment unit is configured to change at least a portion of the exposed surface of the at least one electrically conductive layer structure (210) along a predetermined multi-profile shape portion (250). Furthermore, a printed circuit board or the like (200) and a method for treating a surface are described.

The utility model relates to the technical field of curtain machines, and discloses a conductive strip connecting structure of a curtain machine, which comprises a guide rail section and a conductive connecting piece, and a conductive strip section is arranged in the guide rail section; the conductive connecting piece is arranged between the two guide rail sections, one part of the conductive connecting piece is in extrusion fit with the conductive strip section in one guide rail section, and the other part of the conductive connecting piece is in extrusion fit with the conductive strip section in the other guide rail section, so that the conductive strip sections in the two guide rail sections form electrical conduction connection. The conductive connecting piece and the conductive strip sections are in extrusion fit, so that the friction force between the conductive connecting piece and the conductive strip sections is increased, the conductive connecting piece and the conductive strip sections are effectively connected and are not easy to separate, and stable electric conduction between the two conductive strip sections is ensured.

The present invention relates to the technical field of manufacturing equipment, and specifically to an ultrasonic processing device for high-hardness and brittle materials, comprising an ultrasonic electric spindle, the ultrasonic electric spindle comprising a rotating shaft, the rotating shaft comprising an amplitude-changing section and an adjustment section; the amplitude-changing section comprising a transition cylinder; the transition cylinder comprising a first transition cylinder and a second transition cylinder, which, when mounted by connecting bolts, form an annular groove between the two, in which an annular piezoelectric plate is mounted; the upper surface of the second transition cylinder comprises a load-bearing bolt for mounting an ultrasonic component; the lower surface of the adjustment section comprises an adjustment groove, in which a counterweight ball and an electro-hydraulic adjustment member are located. The ultrasonic electric spindle further comprises a control unit and a power supply unit, the control unit analyzing the axial force exerted on the tool and controlling the electrical conduction of the electro-hydraulic adjustment member. The present invention can dynamically adjust the resonance parameters of the ultrasonic spindle based on the real-time force data of the tool during actual machining, thereby improving machining efficiency and quality.

The invention relates to a box structure and a manufacturing method thereof and an electrochromic device, the box structure comprises a first glass substrate, a second glass substrate and a metal connecting structure, the first glass substrate and the second glass substrate are attached to each other through a sealing rubber ring, and a gap is formed between the first glass substrate and the second glass substrate; the metal connecting structure comprises a first metal layer, a second metal layer and at least one metal connecting block, the first metal layer is arranged on the first side face, close to the second glass substrate, of the first glass substrate, the second metal layer is arranged on the first side face, close to the first glass substrate, of the second glass substrate, and the metal connecting block is made of low-melting-point metal. And two sides of the metal connecting block are respectively in brazed connection with the connecting part of the first metal layer and the connecting part of the second metal layer. According to the invention, the reliability of conduction can be ensured, and the consistency of batch production of electrical properties of the device can be effectively ensured.

To provide a projected capacitive touch panel button structure disposed on a touch screen.SOLUTION: A projected capacitive touch panel button structure comprises: a button body 20 disposed on a touch screen; a touch capacitive sheet 10 disposed on the touch screen and located inside the button body 20; a conductive rubber 30 disposed in the button body 20 and including a contact portion 31 that can come into contact with the touch capacitive sheet 10; and a button cap 40 including a connecting body 41 disposed above the conductive rubber 30 and a cover body 42 protruding outward from the button body 20. When the button cap 40 is pressed, the contact portion 31 comes into contact with the touch capacitive sheet 10, and the conductive rubber 30 and the touch capacitive sheet 10 become conductive, causing the touch screen A to generate an input signal.SELECTED DRAWING: Figure 2

To provide a technique capable of holding energization in an electric motor with a simple configuration even after a manual switch for a reciprocating tool is turned off.SOLUTION: A reciprocating tool includes a reciprocating member, an electric motor, a transmission device, a drive circuit, a first manual switch, a switch element and a control circuit. A first contact point of the first manual switch is connected to a power supply, and a second contact point of the first manual switch is connected to the drive circuit. The first manual switch in its on state connects the first contact point to the second contact point. The switch element (i) is turned on when it receives an electric signal, and (ii) establishes electrical continuity between the first contact point and the second contact point in its on state. In response to at least the first manual switch being turned on, the control circuit continues to output the electric signal to the switch element until the drive of the electric motor is stopped.SELECTED DRAWING: Figure 6

The utility model relates to packaging cotton with an antistatic function, which comprises a pearl cotton body, the pearl cotton body comprises a pearl cotton base layer, an electrostatic conduction layer, a pearl cotton filling layer, an antibacterial waterproof layer, an antistatic surface layer and a wear-resistant bottom layer, the electrostatic conduction layer is arranged on the surface of the pearl cotton base layer, and the electrostatic conduction layer is arranged on the surface of the pearl cotton filling layer. The pearl wool filling layer is arranged on the surface of the static conducting layer, the antibacterial waterproof layer is arranged on the surface of the pearl wool filling layer, the anti-static surface layer is arranged on the surface of the antibacterial waterproof layer, and the wear-resistant bottom layer is arranged on the bottom surface of the pearl wool base layer. The static electricity problem can be effectively reduced, static electricity is guided to the ground, static electricity accumulation is avoided, stable conductive performance is kept in the long-term use process, performance reduction caused by environment change or use abrasion is reduced, and harm of the static electricity to a human body and electronic equipment is avoided.