17results about How to "Avoid sparking" patented technology

The invention relates to a radio frequency resonant cavity based on a short-circuit sliding block. The radio frequency resonant cavity comprises an input coaxial transmission line; the connector is connected with the input coaxial transmission line; the first output coaxial transmission line and the second output coaxial transmission line are connected with the connector. The first shifting mechanism is arranged on the first output coaxial transmission line, and the second shifting mechanism is arranged on the second output coaxial transmission line; each of the first output coaxial transmission line and the second output coaxial transmission line comprises an inner conductor, a short-circuit sliding block and an outer conductor, the outer conductor coaxially sleeves the inner conductor, a coaxial cavity is formed between the outer conductor and the inner conductor in a matching manner, and the short-circuit sliding block is connected with the first displacement mechanism and the second displacement mechanism; the short-circuit sliding block is movably arranged in the coaxial cavity. According to the ion cyclotron wave power transmission system, the effect of obtaining large voltage by means of small power is achieved, possible sparking points can be detected under the working condition of large voltage, then measures are taken in advance to prevent the sparking phenomenon, and stable operation of the ion cyclotron wave power transmission system is guaranteed.

This application provides a battery protection circuit, a battery pack, and a battery compartment. The battery protection circuit includes a switching sub-circuit, a first resistor, and a detection sub-circuit. The control terminal of the switching sub-circuit is connected to the presence detection terminal of the battery pack. The first terminal of the switching sub-circuit and the first terminal of the first resistor are respectively connected to the temperature detection resistor connection terminal of the battery management system in the battery pack. The second terminal of the switching sub-circuit and the second terminal of the first resistor are respectively connected to the first terminal of the detection sub-circuit. The switching sub-circuit switches between on and off based on the level signal of the presence detection terminal. This application can prevent arcing when the battery pack is connected to a load.

The utility model discloses a control circuit of an outdoor energy storage device and the outdoor energy storage device, the control circuit comprises a charge and discharge control unit, the charge and discharge control unit comprises a first connecting end and a second connecting end, the first connecting end is used for being electrically connected with electric equipment, and the second connecting end is used for being electrically connected with a storage battery. The parallel operation control module can control connection or disconnection between the third connecting end and the fourth connecting end, and the monitoring module is used for obtaining the voltage of the second connecting end to generate a first voltage value and obtaining the voltage of the fourth connecting end to generate a second voltage value. And the main control module is configured to compare the first voltage value and the second voltage value acquired by the monitoring module, and control at least one of the parallel operation control module and the charging and discharging control unit to work according to a comparison result. By detecting the potential difference between the storage batteries of the host and the slave and controlling the current flow direction in the parallel operation process, the process of gradually balancing the potential difference is realized, and the parallel operation safety and reliability of the system are improved.

The invention discloses a grid voltage control method suitable for an X-ray machine, the X-ray machine comprises a carbon nanotube, the carbon nanotube comprises an anode, a cathode and a grid, the anode is grounded, and the cathode is connected with a high-voltage circuit; the output of the high-voltage circuit is tube voltage; the gate voltage control method includes connecting a gate voltage control circuit with an output of the high voltage circuit such that a gate voltage floats above a tube voltage. According to the grid voltage control circuit, the grid power supply is connected to the high-voltage circuit of the cathode, so that the reference ground of the grid power supply is changed to the output voltage of the high-voltage circuit, no matter how the high-voltage output changes, the voltage difference between the grid and the cathode is always the output of the grid power supply, the voltage difference is small, the insulation is good, and sparking is avoided; the device is small in size, low in cost and high in grid voltage establishing speed, the carbon nano tube can be subjected to rapid pulse exposure, and the service life of the carbon nano tube is prolonged.

The utility model discloses a startup and shutdown circuit which comprises a switch S1, a first voltage dividing unit, an energy storage unit, a first switch assembly, a second switch assembly, an MOS tube Q1, an MOS tube Q2, a second voltage dividing unit and a control chip MCU. The first switch assembly is provided with a first connecting end to a third connecting end, and the second switch assembly is provided with a fourth connecting end to a sixth connecting end; one end of the first voltage dividing unit is connected with a power supply VBAT + and a source electrode of the MOS tube Q1, the other end of the first voltage dividing unit is connected with the switch S1 and the energy storage unit, the other end of the switch S1 is grounded, the other end of the energy storage unit is connected with the first connecting end, a grid electrode of the MOS tube Q1 is electrically connected with the first voltage dividing unit, and the second connecting end is connected with a drain electrode of the MOS tube Q1, a source electrode of the MOS tube Q2 and the second voltage dividing unit. The third connecting end is connected with the fourth connecting end and the IO pin of the control chip MCU, the fifth connecting end is grounded, the sixth connecting end is connected with the other end of the second voltage dividing unit, the grid electrode of the MOS tube Q2 is connected with the second voltage dividing unit, and the drain electrode of the MOS tube Q2 is connected with the VCC pin of the control chip MCU.

The utility model relates to adjustable speed filter automatic can sealing machine, including frame, the carousel of strip -shaped mouth of taking material of arc and the feed guide mechanism of arranging along carousel circumference, pre -press mechanism, edge sealing device (include press jar mechanism and sealing mechanism), discharge device etc. Sealing mechanism passes through double servo motor independent drive first / second transmission, and the speed difference of adjusting adapts different edge sealing demand, feed guide mechanism passes through adjustable connection mounting seat and integration detection element of strip -shaped hole, and pre -press / press jar mechanism fixes filter respectively through pre -press disc, press jar disc, and edge sealing subassembly is driven by cam (tension spring keeps contact), and discharge device takes the protection piece and prevents injury, and the material component (jacks, top material disc) auxiliary ejection. The equipment realizes efficient, stable, automatic can sealing operation, and promotes adaptability and product yield.

This utility model belongs to the field of kitchen appliance technology, specifically referring to a microwave oven guide rail bracket mounting mechanism and a microwave oven. The microwave oven includes an inner cavity and a guide rail bracket mounting mechanism. The guide rail bracket mounting mechanism includes: a bracket fixing unit with several bracket fixing seats fixed to the side wall of the inner cavity, the bracket fixing seats being made of insulating material; a guide rail bracket installed between the bracket fixing seats; and several insulating sleeves installed on the guide rail bracket, wherein the guide rail bracket contacts the inner cavity through the insulating sleeves. The guide rail bracket of this utility model can be quickly installed and fixed through the bracket fixing seats; simultaneously, the several insulating sleeves installed on the guide rail bracket prevent the ends of the guide rail bracket from directly contacting the inner cavity and ensure a reasonable safety distance between them, preventing arcing due to insufficient distance or contact between the guide rail bracket and the side wall of the inner cavity, thereby improving the safety of the microwave oven.

The utility model belongs to the field of coating equipment, and particularly relates to a magnetron sputtering cathode structure for vacuum coating, which comprises a flange plate, a cathode fixedly connected to the upper part of the flange plate, a first anode fixedly connected to the side part of the cathode, an insulating part fixedly connected to the side part of the first anode, and a second anode fixedly connected to the upper part of the insulating part, the second anode is arranged on the anode of the original magnetron sputtering cathode for vacuum coating or the periphery of a workpiece fixing device for placing a workpiece, and a positive potential which is greater than or equal to volt to the ground is applied on the second anode, so that the magnetron sputtering cathode for vacuum coating is ensured to stably discharge; and the discharge sparking phenomenon of the workpiece fixing structure for placing the workpiece is prevented, so that the magnetron sputtering cathode for vacuum coating performs stable discharge work.

The present application relates to a kind of brushless external electrostatic discharge ring electrostatic powder rotary cup spray gun device, including electrostatic powder spray gun body, non-metallic insulating rotary distributor assembly, electrostatic discharge ring, drive unit for driving rotary distributor assembly rotation, and for providing high-voltage static for electrostatic discharge ring high-voltage static generation unit.First, cancel the metal part design of rotary distributor assembly, substantially reduce the capacitance effect of metal part in rotary distributor assembly itself, eliminate the phenomenon of striking fire generated in the spraying process of traditional metal rotary distributor assembly, improve safety.Both can prevent carbon brush from mixing carbon residue into powder during rotation and friction process to pollute powder, and can also reduce the cost of frequent replacement and maintenance of carbon brush, so as to reduce the use cost of spray gun.

This application discloses a battery cell and a battery pack, relating to the field of power battery technology. In the battery cell, an electrode assembly is disposed within a housing; a top cover is connected to the housing along a first direction; an insulating member is disposed within the housing, located on the side of the top cover near the electrode assembly; a connecting piece is disposed within the housing and electrically connected to the electrode assembly; a first end of a resistor is connected to the top cover, and a second end of the resistor passes through the insulating member along the first direction and is connected to the connecting piece; the top cover and the resistor have mutually cooperating mating parts. The resistor can conduct electricity to form a short circuit between the top cover and the connecting piece when the temperature of the battery cell continuously rises, causing the battery to discharge rapidly to a low charge level, thereby reducing the battery's charge level. Even if thermal runaway of the battery cell is triggered, the risk of the discharged battery catching fire or exploding is reduced. This improves battery safety and reduces the risk of thermal runaway propagation.

The embodiment of the invention provides a lower electrode assembly, a lower electrode assembly control method and semiconductor process equipment, the lower electrode assembly comprises a focusing ring, a wafer bearing device, a radio frequency power supply, a detection module and a control module, the focusing ring is arranged around the bearing surface of the wafer bearing device, and the detection module is connected with the control module; the radio frequency power supply is used for applying radio frequency voltage to the bias electrode and the focusing ring of the wafer bearing device; the detection module is used for acquiring a first radio frequency voltage signal of the lower surface of the focusing ring and a second radio frequency voltage signal of the lower surface of the wafer on the bearing surface; the control module is used for judging whether the working state of the lower electrode assembly is normal or not according to the first radio frequency voltage signal and the second radio frequency voltage signal, so that the working state of the lower electrode assembly can be accurately monitored, and equipment ignition is avoided.

The utility model provides an anti-sparking power circuit breaker, a power adapter, a battery pack and intelligent furniture. The circuit comprises an anti-sparking detection module and an anti-sparking control module. The anti-sparking detection module comprises a power transmission processor, an anti-sparking comparator, a current detection resistor, a normal-phase resistor, a first anti-phase resistor and a second anti-phase resistor, the first end of the current detection resistor is used for being connected with a power grounding wire of the electric equipment, and the first end of the current detection resistor is further connected with the first end of the normal-phase resistor; the second end of the normal-phase resistor is connected with the normal-phase input end of the anti-sparking comparator, the second end of the current detection resistor is connected with the first end of the first anti-phase resistor and grounded, and the second end of the current detection resistor is connected with the anti-phase input end of the anti-sparking comparator. The second end of the current detection resistor is further connected with the output end of the anti-sparking comparator through a second inverting resistor, and the anti-sparking output end of the power transmission processor is used for controlling the on-off of the anti-sparking control module.

The application discloses a novel energy-saving system for production of formed foil, which is used for power distribution and formation treatment of strip-shaped aluminum foil and comprises a rack, a power distribution conveying roller rotatably installed on the rack, a water boiling tank and a formation tank arranged on the inner side of the rack, a water spraying tank arranged between the power distribution conveying roller and the water boiling tank on the inner side of the rack and located obliquely above the power distribution conveying roller. In the application, high-purity water for formation is used as cooling water, so that the strip-shaped aluminum foil does not need to be additionally provided with cooling water, thereby reducing the consumption of cooling water. The high-purity water for formation is used as cooling water, so that the cooling water is heated while the inclined section of the strip-shaped aluminum foil to be cooled after being heated by direct current is cooled, the heated cooling water is directly introduced into the water boiling tank and mixed with high-purity water for hydrating film, the temperature of the high-purity water for hydrating film is increased, and the electric heating energy consumption of the water boiling tank for the high-purity water for hydrating film is reduced.

The utility model relates to a graphite electrode and a heating device, the graphite electrode comprises a first electrode column and a second electrode column, the upper end of the first electrode column is connected with the lower end of the second electrode column, and the axis of the first electrode column and the axis of the second electrode column are arranged at an obtuse angle. When the quartz crucible is heated through arcing of the plurality of graphite electrodes, the axes of the first electrode columns of the plurality of graphite electrodes can be vertically arranged, and the second electrode columns of the plurality of graphite electrodes extend in the direction away from the central axis of the circumferential array of the plurality of graphite electrodes. Therefore, arcing can be carried out on a plurality of axial positions of the first electrode columns of the plurality of graphite electrodes to form a heating area with a relatively large range, so that the first electrode columns of the plurality of graphite electrodes can be entirely extended into the quartz crucible to heat each part of the quartz crucible in the process of heating the quartz crucible; the problem that the quartz crucible is heated unevenly is solved.

The application relates to the technical field of large-current electric contact connection, and discloses a combined large-current contact quick-mounting and contact anti-loosening stability method, which comprises an insulating base, and further comprises a combined conductive contact unit, a radial spring mechanism, an equal-resistance current-distribution copper bar, a contact consistency calibration structure and a foolproof and mistake-proof mounting structure which are mounted on the insulating base 1; the combined large-current contact quick-mounting is provided by using the insulating base and the foolproof and mistake-proof mounting structure, is integrally formed by using high-strength flame-retardant insulating materials, is stable in structure, reliable in insulation, sufficient in creepage distance, can bear and isolate various conductive components, and can avoid the risk of electric leakage and short circuit; standardized mounting grooves are reserved on the base, accurate positioning references are provided for various components, and assembly consistency is ensured; meanwhile, the combined large-current contact quick-mounting has vibration resistance and aging resistance, is suitable for long-term operation conditions of heavy-load AGV and AMR, and significantly improves overall safety and service life.

This utility model relates to a power supply device, and more particularly to a fire-resistant power supply device for drones. According to the technical solution provided by this utility model, a fire-resistant power supply device for drones includes: a battery compartment unit, comprising at least one battery compartment; and a battery pack unit, comprising at least one battery pack. Each battery pack can be inserted into a corresponding battery compartment. During the insertion of the battery pack into the corresponding battery compartment, the battery pack is configured to pre-charge the load capacitor inside the drone, which is in a cold state. After the load capacitor is pre-charged, the battery pack is aligned and fully inserted into the battery compartment to provide power to the drone. This utility model effectively prevents sparking when the battery pack is inserted into the battery compartment, improving the safety and reliability of drone power-on.