23results about How to "Ensure normal conduction" patented technology

The utility model provides a chip testing device and a chip testing system, and relates to the technical field of chip testing. According to the utility model, a probe seat is installed on a first PCB through a bolt, the probe seat is provided with an installation position used for installing a tested chip and a test probe installed at the installation position, the test probe penetrates through the probe seat, the top of the test probe is contacted with the tested chip, and the probe seat is provided with at least one second positioning hole at a position close to the installation position. And the shaft pin passes through the second positioning hole and the first positioning hole, so that the bottom of the test probe is in full contact with the first PCB. According to the technical scheme, the gap between the probe seat and the first PCB is reduced equivalently by using the shaft pin, so that the test probe can abut against the first PCB, normal conduction of a circuit is ensured, and the stability of testing the tested chip is ensured.

The invention discloses a light emitting device, a packaging method and an optical module. The light emitting device comprises a metal base, an insulating diversion layer, a pipe cap, a lens, a laser chip, a refrigerator assembly and an adapter assembly. The pipe cap is connected to the metal base in a covering mode to form a sealed cavity, and an insulating flow guide layer, a lens, a laser chip and a refrigerator assembly are arranged in the sealed cavity. The insulating diversion layer is connected between the metal base and the refrigerator assembly; a plurality of bismuth antimonide particles are sequentially connected to the upper surface of the insulating diversion layer; the cold surface substrate is connected to the upper surfaces of the bismuth antimonide particles; the upper surface of the cold face substrate is connected with a heat transfer conductive piece which is connected with the first substrate and the second substrate. The thermistor is arranged on the first substrate; the lens is arranged on the heat-transfer conductive part; the laser chip is arranged on the second substrate; the adapter assembly is connected to the outer side of the pipe cap. The heat dissipation efficiency is effectively improved, and the service life is prolonged.

The utility model discloses mechanical plugging layer-by-layer oil extraction device, including flow guide pipe, the one end of flow guide pipe is connected with the upper packer, and the other end is connected with the lower packer, and the three are all connected through upper and lower joint, the upper packer is used for plugging the upper end of the well section of plugging object, and the lower packer is used for plugging the lower end of the well section of plugging object, the upper packer, the lower packer and the flow guide pipe inside all are provided with gas flow guide passage, make the dissolved gas of lower oil layer free come out in turn through lower packer, flow guide pipe, upper packer and enter the oil jacket annular space of upper portion, finally discharge from wellhead. The utility model discloses device solved the gas lock problem of existing technology when sealing upper and extracting lower, can be used as the plugging tool of oil layer when sealing upper and extracting lower of oilfield long stop oil well, high water cut oil well, can improve oil well mining efficiency, reduce development cost, obtain greater economic benefit.

The application discloses a crosstalk suppression module and a control method thereof, a display panel and a display device, and relates to the technical field of display. The crosstalk suppression module is provided with a gate drive circuit integrating gate scanning units at all levels, and a replacement circuit connected between a direct-current high-voltage signal line and a first passage end of a pre-charging transistor in the gate scanning unit. When the direct-current high-voltage signal line is normal, the pre-charging transistor is enabled to be connected to a pre-charging voltage provided by the direct-current high-voltage signal line under the drive of a front-stage scanning signal to pre-charge the first node, so that an output transistor is turned on and a current-stage scanning signal is output. When the direct-current high-voltage signal line is invalid, the pre-charging transistor is enabled to provide a pre-charging replacement voltage of the replacement circuit to the first node under the drive of the front-stage scanning signal, so that the output transistor is normally turned on. The application aims to improve the fault tolerance of the gate drive circuit to the invalid direct-current high-voltage signal line to improve the uniformity of picture display.

The utility model relates to the field of LED display screens, and discloses a box body with wireless transmission and no installation direction and an LED display screen, the box body comprises a module, a support frame and a power supply box, the module is provided with a first wireless module and a first copper needle, the power supply box is provided with a second wireless module and a second copper needle, the power supply box is installed on the support frame, and the first wireless module is connected with the second wireless module. The module is installed on the supporting frame and makes contact with the power supply box, the first wireless module and the second wireless module achieve signal receiving and transmitting, the first copper needle and the second copper needle achieve power connection, the wireless modules are arranged on the power supply box and the module respectively, wireless signal transmission can be achieved, and the power supply box is provided with the wireless modules. The copper needles are respectively arranged on the power supply box and the module, so that the normal conduction of the power supply after the rotation of the LED display screen can be ensured.

This utility model provides an automotive micro switch, comprising: a micro switch with a male connector mounted on its side surface, the male connector being plugged into and connected to a female connector, the female connector being connected to a terminal block via a wire; an anti-disengagement component disposed on one side of the micro switch, the anti-disengagement component being used to prevent the male connector and female connector from disengaging; and a protective component mounted on the surface of the wire, the protective component being used to protect the surface of the wire from wear. Through the action of the anti-disengagement component, the locking block achieves a limiting and anti-disengagement effect on the locking plate, ensuring stable connection between the male and female connectors, preventing disengagement of the connection between the micro switch and the wiring harness, ensuring signal transmission and circuit continuity, and enabling the normal operation of related functions. By wrapping a sealant filling layer around the surface of the wire, the protective component is tightly fitted onto the surface of the wire.

The application belongs to the technical field of connectors and discloses a wire end connector which comprises a plug shell and a fixing piece, the plug shell is internally provided with a fixed section and an insertion section which are connected with each other along a first direction, cable mounting grooves are provided through the fixed section and the insertion section along the first direction, an insertion groove is formed in the side wall of the fixed section and is communicated with the cable mounting groove, and the insertion section can be inserted into a mating shell of a mating connector; the fixing piece comprises a main body and an extension which are connected with each other along the first direction, the main body is provided with a first cable limiting part, the main body can be inserted into the insertion groove, the first cable limiting part is clamped into a circumferential groove of a cable, and the extension is inserted into the mating shell. The wire end connector is used for improving the connection reliability of the wire end connector and the cable, thereby ensuring the normal conduction of current or signals.

This invention discloses a lightning protection system for glass curtain walls in high-rise buildings. The system includes embedded parts, connecting conductors, intermediate conductors, and conductive connecting pieces. The embedded parts are welded to the main building structure to facilitate equipotential bonding between them. One end of the intermediate conductor is connected to the lower part of the glass curtain wall column, and the other end is connected to the embedded parts. One end of the connecting conductor is welded to the embedded parts, and the other end is connected to the intermediate conductor. The glass curtain wall column of this invention forms a lightning current path with the main building structure through the conductive connecting pieces, intermediate conductors, and connecting conductors. The lightning protection system of this invention, by forming a lightning current path with the main building structure through the conductive connecting pieces, intermediate conductors, and connecting conductors, ensures the stability and reliability of the lightning current path, effectively improving the lightning protection performance of the curtain wall and guaranteeing the safety of the high-rise building structure.

The utility model relates to a kind of terminal connecting structure and power supply equipment, comprising: terminal seat, terminal seat is equipped with installation site, installation site is used to install terminal;Adapter plate is set on terminal seat, and is electrically connected with terminal;And connecting piece, connecting piece includes main part, and the first connecting part of being set in one end of main part and the second connecting part of being set in the other end of main part;Main part is fixedly connected in the side of adapter plate away from terminal seat, first connecting part is electrically connected with adapter plate, second connecting part is fixed on main plate, and second connecting part is electrically connected with main plate.Terminal connecting structure can increase the strength of connection, ensure the normal conduction of electric connection, when connecting piece is subjected to external force, improve the stability and security of terminal and main plate connection, when external power supply is connected with terminal, terminal is not easy to shake, avoid the force directly transmitted to main plate in the process of plugging with terminal, reduce the force impact of connection position with main plate, improve the security of connection, structure is more stable.

The present invention relates to a heat exchanger for waste heat recovery of ultra-high temperature liquid metallurgical slag, comprising a heat exchange tube group; a heat exchange plate group is arranged outside the heat exchange tube group; the heat exchange plate group arranged outside the heat exchange tube group forms a heat exchange cavity; the heat exchange cavity is filled with a heat transfer metal; the heat transfer metal is connected to the heat exchange plate group and the heat exchange tube group as a whole. The present invention can be used for heat recovery of ultra-high temperature liquid metallurgical slag, effectively solving the problem that traditional heat exchangers cannot directly recover waste heat from ultra-high temperature liquid metallurgical slag.

The invention relates to the technical field of transformer substation noise treatment, and discloses a transformer substation noise treatment device which comprises a supporting column, the top of the supporting column is fixedly connected with a bearing frame, the upper surface of the bearing frame is fixedly connected with a first noise detector and a second noise detector, and the bottom of the inner wall of the bearing frame is fixedly connected with a control host. Through the design that the sound receiving microphones on the first noise detector and the second noise detector are covered with the protection cavities, the sound receiving microphones can be protected, dust is prevented from being attached to the surfaces of the sound receiving microphones, the accuracy of power transformation equipment noise detection when the first noise detector and the second noise detector are used is guaranteed, and meanwhile the noise detection accuracy is improved. The first noise detector and the second noise detector can carry out noise detection on the power transformation equipment at the same time, the accuracy of noise detection of the power transformation equipment by the processing device is guaranteed, the two cameras can carry out camera shooting on the power transformation equipment, and it is guaranteed that management personnel check the power transformation equipment in time.

The utility model discloses a high-precision pyroelectric coefficient testing device which comprises an industrial personal computer, a temperature controller, a high-resistance meter, a test board, an electric heating piece, a temperature sensor and a silver paste electrode used for placing a pyroelectric material to be tested. According to the testing device, the tested pyroelectric material is heated by using a silver paste electrode heating method, so that the defects of environmental error caused by charge of insulating oil in an oil bath heating process, hydrothermal solution splashing and the like are avoided; the high-resistance meter capable of switching different measuring ranges according to the quantity of the measured electric charges is used for replacing an integrating capacitor and an electrometer to collect the pyroelectric charges, and the problems that the testing precision is reduced due to the fact that the integrating capacitor is too large, and the testing range is out of range due to the fact that the integrating capacitor is too small are solved.

The invention relates to an electrode pole piece and a lithium ion battery in the technical field of lithium batteries, the electrode pole piece comprises a current collector and an active substance layer at least arranged on one side of the current collector, a functional layer is arranged on one side, far away from the current collector, of the active substance layer, the functional layer is of a multi-layer structure, and the functional layer is arranged on the current collector. Each functional layer comprises an inorganic solid electrolyte and a polymer, the functional layer further comprises a conductive agent, and the mass ratio of the conductive agent in each functional layer is gradually reduced in the direction away from the active material layer. According to the invention, the functional layers with a multi-layer structure are arranged, and the mass ratio of the conductive agent in each functional layer is gradually reduced along the direction far away from the active substance layer, so that the electric performance of the battery can be ensured, and meanwhile, direct contact of positive and negative pole pieces can be blocked when the diaphragm is shrunk or punctured, and the like, and a battery cell is prevented from being out of control.

The invention discloses a vertical continuous powder purification furnace, which relates to the technical field of high-purity powder purification and solves the technical problem of gasified impurity discharge rate of existing powder purification furnaces. The invention mainly relates to a crucible assembly, which is composed of a crucible unit composed of a plurality of upper and lower crucibles with openings at both ends. An upper crucible cone is arranged in the upper crucible, and the bottom of the side surface is connected to the upper crucible barrel wall through a crucible ring with a plurality of through holes. A lower crucible cone is arranged in the lower crucible, and the top of the lower crucible cone is provided with through holes. Ventilation pipes are arranged on the sides of the upper and lower crucible cones. The invention designs the purification furnace body as a vertical structure, and at the same time vertically and longitudinally arranges a series of crucible combinations one by one in the vertical furnace body, so as to increase the contact area and contact time between the powder and the process gas, so that the impurities can react more fully with the process gas, and the gasified impurities are discharged from the furnace body, so as to realize the continuous production of high-purity powder.

The utility model relates to the technical field of cooking utensils, and discloses an integrated cooking bench, the top of a stove body is fixedly connected with a smoke pipe used for exhausting, the wall surface of the stove body is provided with a recovery structure capable of heating water and drying firewood, and the recovery structure comprises a first heating box, a partition plate, a second heating box and a connecting body, the first heating box is fixedly connected with the stove body and wraps the smoke pipe, the second heating box is fixedly connected with the first heating box, the first heating box and the second heating box are each provided with a cavity, a plurality of partition plates are arranged in the cavity of the first heating box, and the connecting body is installed in the cavity of the second heating box and connected with the partition plates. The connecting body connected with the partition plate can heat the cavity of the second heating box, the second heating box can be used for drying wet firewood or drying clothes and shoes, the recovery effect of heat in tail gas can be improved, the function of heating water and firewood is achieved, the functionality is higher, and the practical effect is better.

The utility model relates to car light light guide strip technical field, concretely relates to a car light light guide strip with heat -resisting function: including LED installation shell, LED lamp board, vitreous body, first fixed establishment, light guide strip body and second fixed establishment, be provided with LED lamp pearl on the LED lamp board, install the vitreous body in the inside top end of LED installation shell through the first fixed establishment, and be located above LED lamp pearl, the vitreous body can bear the high temperature that high -power LED lamp pearl produced, block heat directly to light guide strip body and related parts, reduce high temperature damage, at the same time, LED installation shell top end is provided with the hole and the vitreous body corresponds, installs the light guide strip body through the second fixed establishment in protruding place, and the light guide strip body bottom end is located above the vitreous body, this kind of design guarantees light conduction, utilizes the heat -resisting characteristic of vitreous body again, reduced the risk of material ageing, performance decline, prolonged the service life of car light light guide strip, guaranteed the normal use of car light.

The utility model discloses a novel thermocouple protection device for a dry distillation furnace, which belongs to the technical field of dry distillation equipment and comprises a furnace body generation section, a furnace body dry distillation section, a water basin and a motor, the furnace body dry distillation section is formed by piling up dry distillation section refractory bricks, and the furnace body generation section is formed by piling up generation section refractory bricks. According to the utility model, the end of the thermocouple at the dry distillation section is positioned in the second hollow-out groove at the side part of the special-shaped refractory brick at the dry distillation section, and the end of the thermocouple at the generation section is positioned in the first hollow-out groove at the side part of the special-shaped refractory brick at the generation section; shale in the dry distillation furnace is separated from the dry distillation section thermocouple and the generation section thermocouple by the dry distillation section special-shaped refractory brick and the generation section special-shaped refractory brick, so that the protective effect is achieved, the damage frequency of the thermocouples is reduced, the service life of the thermocouples is greatly prolonged, the shutdown overhaul frequency of the dry distillation furnace is reduced, the stable operation of the dry distillation furnace is guaranteed, and meanwhile, the material cost is saved; the practicability is high.

The invention relates to the field of display devices, and provides a gate drive circuit and a display device.The gate drive circuit is provided with cascaded shift register units, each shift register unit comprises eight transistors, two capacitors, a signal input end, a signal output end and three time sequence control ends, and the first transistor is of a double-gate structure. According to the invention, the plurality of transistors are respectively controlled by adopting the multi-time sequence control signals, so that the accurate control of the gate signals is realized. The bigrid transistor in the shift register unit can flexibly respond to the change of a time sequence control signal and an input signal, so that a signal transmission path is accurately switched at different moments, and the time sequence accuracy of grid driving is ensured. The gate drive circuit can stably work in the high-resolution display device, normal turn-on and turn-off of the transistor are ensured, the transmission efficiency and time sequence stability of a gate signal are effectively improved, and finally higher image display quality is achieved.

The invention discloses a gradient co-doped lithium manganese iron phosphate positive electrode material and a preparation method thereof, and belongs to the technical field of batteries. According to the invention, gradient co-doping is realized by injecting a solution B containing a V dopant step by step, rod-like particles are obtained by combining morphology regulation and control, and then the rod-like particles are subjected to multi-layer coating by Li3PO4, MgO and conductive carbon. A structure with a strong shell and a stable inner core is constructed by gradient distribution of V and Mg, ion transmission, interface stability and conductivity are synergistically improved by multi-layer coating, and the positive electrode material is excellent in rate capability, long in cycle life and suitable for the fields of power batteries and energy storage batteries.

The present application provides a time-delay switch driving circuit and system, and relates to the technical field of switch control driving circuit. The circuit includes: a control circuit, a switch circuit and a time-delay circuit, wherein the control circuit, the switch circuit and the time-delay circuit are electrically connected in sequence, the input end of the control circuit is electrically connected to the power-off control pin, and the output end of the time-delay circuit is connected to the controlled switch power supply. Among them, the control circuit controls the disconnection or conduction of the switch circuit and the time-delay circuit through the level signal output by the power-off control pin in the enabled state or the disabled state, so that the time-delay circuit outputs a power-off signal or a restart signal to the controlled switch power supply to control the controlled switch power supply to disconnect and automatically restart. In addition, through the time-delay circuit, the controlled switch power supply can be powered off or restarted after the power-off control pin outputs a level and reaches a preset time, so that the capacitive load in the electronic device system is fully discharged before restarting, thereby avoiding damage to the controlled switch power supply.

The present invention relates to a 90° and 180° non-interrupted power conveying device and method. By setting a 90° right-angle turning conveying structure, the right-angle turn of the pallet conveying can be realized, and the occupied space of the turning conveying mechanism is reduced; by setting a 180° rotating conveying structure, the automation of the process of changing the pallet from the back conveying state to the front conveying state is realized, without the need for external equipment or manual work, thereby improving the conveying efficiency, and the docking space between the conveying structures is small, thereby reducing the occupied space of the conveying device, improving the applicability of the conveying device and the stability of the conveying; by setting a power supply component on each conveying structure and setting a conductive component at the bottom of the pallet, when the pallet is conveyed to the corresponding conveying structure, the power supply component is connected to the conductive component at the bottom of the pallet, so that the pallet can be powered on during the entire conveying process, and the detection effect of the liquid crystal display panel is improved.

The utility model provides a hardware fastening device for electrical cabinet hinge machining, which comprises a base, a lifting component is fixedly mounted at the top of the base, a first fastening component is assembled at the operating end of the lifting component, a front substrate is fixedly mounted on the front side of the base, a guide opening is formed in the front substrate, and the first fastening component is fixedly mounted on the front side of the base. A reciprocating assembly penetrating through the guide opening is assembled on the front base plate, and a second fastening assembly penetrating through the guide opening is assembled on the reciprocating assembly; the reciprocating assembly comprises a front pulling component, a sliding tongue and a first mounting plate. The second fastening assembly comprises a traction block, a torsional spring, a guide shaft, a mounting base and a pressing block. The reciprocating assembly and the second fastening assembly are matched with each other, a machined part can be clamped and fixed, the machined part can be pulled forwards, a machined workpiece can be continuously pulled by the device, manual guard operation by personnel is not needed, and the working performance of the device is improved.

The utility model discloses a drainage wire insulation protection sleeve, including inner sleeve, outer sleeve, first elastic member and closed structure, and the inner sleeve is used for setting and fixing in the position close to the end of drainage wire, the outer sleeve sets up in the outside of inner sleeve, and can slide to the second predetermined position from the first predetermined position along the axial direction of inner sleeve, the first elastic member abuts against outer sleeve and inner sleeve along first direction and second direction respectively, and maintains that outer sleeve is in the first predetermined position, and the distal end of outer sleeve along first direction is provided with closed structure, when outer sleeve moves to the second predetermined position, the outer sleeve is used for covering the end of drainage wire completely, and the closed structure closes the pipe mouth of outer sleeve. If the end of drainage line falls off, the outer sleeve will quickly cover the end of drainage line, and the closed structure will close the pipe mouth of outer sleeve, so that the end of drainage line cannot contact with adjacent conductor and grounding body, avoiding the occurrence of short circuit, grounding and even fire accident, and improving the safety of power grid operation.