17results about How to "Fast shutdown" patented technology

The utility model provides an ion implanter and a semiconductor processing system, and relates to the technical field of ion implanters. The ion implanter comprises a cavity, an exhaust pipeline, a one-way valve, an isolating valve and a tail gas treatment device, the cavity is communicated with the tail gas treatment device through the exhaust pipeline, and the one-way valve and the isolating valve are installed on the exhaust pipeline; wherein when the ion implanter is in an exhaust state, the isolation valve is conducted; when the suction force of the tail gas treatment device is greater than or equal to a threshold value, the one-way valve is switched on; when the suction force of the tail gas treatment device is smaller than a threshold value, the one-way valve is switched off; and when the ion implanter is in a non-exhaust state, the isolating valve is switched off. The ion implanter and the semiconductor processing system provided by the utility model have the advantage of being capable of effectively preventing waste gas from flowing back into the cavity.

The utility model discloses a cyclone type chlorine dioxide generator, including generator body, the bottom of generator body is provided with raw material adding opening, and raw material adding opening out installs liquid inlet structure, the liquid inlet structure includes for inner tube and the outer tube of setting in the outer portion of inner tube, the upper end of inner tube is closed, and the lateral wall on inner tube is equipped with liquid inlet hole, and the lower end of inner tube is used for adding hydrochloric acid, the lower end of outer tube is closed, and the lateral wall on outer tube is vertically installed with liquid adding pipe, and liquid adding pipe is used for adding sodium chlorite, and the upper end of outer tube is linked with raw material adding opening. The utility model can make the reaction raw material in the joining place of reactor and the reaction zone subarea realize raw material's quick double full mixing, improve the reaction rate, make the reaction more fully, can provide sufficient diffusion space for the reaction liquid of heated expansion simultaneously, control the residence time of reaction liquid in generator, reduce the production of byproduct such as sodium chlorate, improve the conversion rate of sodium chlorite, guarantee the high yield of ClO2.

The utility model discloses a logic drive circuit for synchronous rectification of a bidirectional power supply and the bidirectional power supply. The circuit comprises a synchronous rectification chip, a control circuit and a control signal port. The circuit is connected to a control circuit through a control signal port, so that the power supply of the synchronous rectification chip is adjusted, and the working state of the synchronous rectification chip is controlled. The circuit is simple in principle and process, control driving of the synchronous rectification chip of the bidirectional power supply is realized by using fewer devices and a simpler control thought, and the effect of preventing false triggering of the synchronous rectification chip during reverse power supply of the bidirectional power supply is achieved; the purpose of preventing main power driving disorder during reverse power supply of the bidirectional power supply with synchronous rectification is achieved, and the circuit can be widely applied to development of battery bidirectional charging and discharging switching power supply circuit products.

This application discloses a high-efficiency five-axis machining center, relating to the field of CNC machine tools. It includes a base and a worktable, with two support seats mounted on the base. A transverse slide is slidably connected to each of the two support seats, and a positioning seat is provided on each support seat. An inclined surface is formed on the side of the positioning seat near the transverse slide, and a transverse stator is mounted on the inclined surface. Transverse movers are mounted on both sides of the transverse slide. A longitudinal slide is slidably connected to the transverse slide, with a row of longitudinal stators mounted on the transverse slide and longitudinal movers mounted on the longitudinal slide. A vertical drive seat is slidably connected to the longitudinal slide, and a vertical drive cavity is formed on the vertical drive cavity. A vertical drive component is installed within the vertical drive cavity, and one end of the vertical drive component is rotatably connected to a first drive screw. This application aims to disperse the upward shearing force generated during cutting, improve the stability of the transverse slide movement, and enhance product machining accuracy and processing effect.

This invention discloses an automatic switching system, method, and drive circuit for an uninterruptible power supply (UPS) in the field of power electronics. It includes a power module for providing electrical energy to the system; a relay switch unit for controlling the switching of mains power input; an accelerated turn-off unit for accelerating the turn-off of the relay switch unit; a circuit switching unit for switching a high-current drive circuit to a low-current drive circuit after a predetermined delay; and a control module for outputting a high-level signal to control the circuit switching unit to switch the high-current drive circuit to accelerate the closing of the relay switch unit, and outputting a low-level signal to control the accelerated turn-off unit to accelerate the turn-off of the relay switch unit. This invention employs a delayed switching drive design and an accelerated turn-off unit, which significantly simplifies the power supply hardware design, reduces the power requirements of the auxiliary power module, and significantly shortens the relay turn-off time, ensuring the stability and reliability of the UPS during the switching process.

The invention discloses a solenoid turn-off circuit and method, and belongs to the technical field of motion control. The first dissipation module is connected with the solenoid unit, and the first dissipation module is configured to communicate with the solenoid unit so as to perform primary dissipation on the current released by the solenoid unit; the dissipation bypass module is connected between the first dissipation module and the solenoid unit, and the dissipation bypass module is configured to perform secondary dissipation on the current released by the solenoid unit when the first dissipation module is disconnected from the spiral pipe unit; wherein the dissipation duration of the second-stage dissipation is smaller than that of the first-stage dissipation. According to the circuit provided by the invention, the current in the solenoid unit can be quickly dissipated through the dissipation bypass module, the time for turning off the solenoid is short, and the response speed and the real-time controllability of an equipment system are improved.

The invention discloses an acousto-optic modulator driving circuit, which comprises a local oscillation signal generator module, an analog driving modulation amplification module, a digital driving modulation amplification module and a power supply modulation module, and is characterized in that the local oscillation signal generator module is formed by connecting a crystal oscillation circuit, a low-pass filter circuit and a power divider; the analog driving modulation amplification module is formed by connecting a variable gain amplification circuit, a pre-amplification circuit, a power amplification circuit, a matching and low-pass filter circuit and a radio frequency output port; the digital driving modulation amplification module is formed by connecting a keying modulation circuit, a pre-amplification circuit, a power amplification circuit, a matching and low-pass filtering circuit and a radio frequency output port. The local oscillation signal generator module generates high-frequency sinusoidal signals through the crystal oscillation circuit and the low-pass filter circuit, local oscillation signals are provided for the analog driving modulation amplification module and the digital driving modulation amplification module at the same time through the power divider, the average power consumption is reduced, and the area and cost of a circuit board are saved.

The invention discloses a broken wire trigger detection device and method. The broken wire trigger detection device comprises a pay-off system, an internal detection unit, a signal receiving system, a control system and an execution mechanism. The pay-off system comprises a pay-off rack, at least one wire breaking device is installed on the pay-off rack, and each wire breaking device comprises a rotary induction pressing plate and a photoelectric sensing assembly. The internal detection unit is a tubular eddy current detection unit and is composed of a non-magnetic metal tube shell and an internal eddy current sensor array; the signal receiving system is used for receiving signals of the photoelectric sensing assembly and the eddy current sensor array and transmitting the signals to the control system; the control system is in signal connection with the execution mechanism. Precise judgment, quantitative evaluation and precise positioning of the broken wires are achieved, stopping can be triggered when the broken wires occur, defective products are reduced from the source, the production cost is reduced, meanwhile, the production automation level and the equipment mobility are improved, and data support is provided for quality tracing and process improvement.

The embodiment of the invention provides a power conversion device, the power conversion device comprises a power switch tube and a driving circuit group corresponding to the power switch tube, and the driving circuit group comprises a first driving circuit and a second driving circuit; the first driving circuit is used for outputting a first driving voltage to the power switch tube and the second driving circuit based on the driving control signal; the second driving circuit comprises a first switching circuit and a second switching circuit which are connected in series, and the first switching circuit is used for being switched on or switched off based on the first driving circuit; the second switching circuit is used for being switched on or switched off based on the first mode control signal; and the second driving circuit outputs a second driving voltage to the power switch tube when the first switch circuit and the second switch circuit are both switched on. By implementing the embodiment of the invention, the working synchronization rate among the sub-driving circuits when the driving circuit switches different driving modes can be improved, so that the driving performance of the driving circuit is improved.

The embodiment of the present application provides a transformer isolation driving circuit, comprising: a transformer, comprising a primary coil, a first secondary coil and a second secondary coil; a first switch unit; a first discharge circuit, used for discharging a control end of the first switch unit, the first discharge circuit comprising a second switch unit; a third switch unit; a second discharge circuit, used for discharging a control end of the third switch unit, the second discharge circuit comprising a fourth switch unit; the conduction state of the first switch unit is opposite to the conduction state of the third switch unit, and the first switch unit and the third switch unit are used for outputting a driving signal. The transformer isolation driving circuit of the embodiment of the present application can ensure that the first switch unit and the third switch unit are quickly turned off, avoid the mis-conduction of the first switch unit and the third switch unit, and thus improve the stability of the driving circuit.

The utility model relates to a VHF band high -power power amplifier isolation circuit of quick shutdown signal belongs to power amplifier circuit technical field. Circuit includes signal input circuit, first drive amplifier circuit, second drive amplifier circuit, forestage amplifier circuit, last stage amplifier circuit and signal transceiver circuit that connect gradually in proper order, wherein, the output of forestage amplifier circuit and the input of last stage amplifier circuit have first signal isolation module in series, for isolating the output signal of forestage amplifier circuit, the output of last stage amplifier circuit and the input of signal transceiver circuit have second signal isolation module in series, for isolating the output signal of last stage amplifier circuit. The utility model discloses through two signal isolation modules and carries out isolation to the output signal of forestage amplifier circuit and last stage amplifier circuit respectively, improves the isolation of power amplifier circuit. Simultaneously, the transmitting signal and the receiving signal are completely isolated, have reduced the interference to the receiving signal, and the overall circuit structure is simple, has reduced the manufacturing cost of power amplifier circuit.

The utility model relates to the technical field of cluster pipe processing, and discloses a stable feeding cluster pipe unreeling machine which comprises an unreeling machine main body and a mounting base, and further comprises a placing frame and a mounting plate, the lower end of the unreeling machine main body is fixedly connected with the mounting base, the surface of a first fixing plate is in sliding connection with a sliding rod, and the surface of the first fixing plate is in sliding connection with the placing frame. A first roll shaft frame used for supporting bundle pipe raw materials is fixedly installed at the upper end of the sliding rod, and a trigger switch used for closing the unwinding machine body is fixedly installed on one side of the installation plate. When the bundling pipe unreeling machine capable of stably feeding is used, when bundling pipe raw materials are broken in the unreeling process, the first roll shaft frame losing supporting of the bundling pipe raw materials moves upwards, and when the first roll shaft frame touches the trigger type switch over the first roll shaft frame, the trigger type switch controls the unreeling machine body to be closed, the step that workers find that the raw materials are broken and shut down is omitted, and the work efficiency is improved. In this way, rapid shutdown is achieved, and secondary damage to the bundling pipe raw material roll is avoided.

The invention discloses an automatic gas cut-off device and method for diaphragm pump leakage and a diaphragm pump, and relates to the technical field of diaphragm pumps, and the automatic gas cut-off device comprises a pneumatic monitoring assembly, a mechanical logic valve group and a gas source cut-off mechanism; the mechanical logic valve group is arranged on an air source air inlet pipe of the diaphragm pump, and the air source cut-off mechanism is arranged at the output end of the mechanical logic valve group; the pneumatic monitoring assembly comprises a diaphragm differential pressure mechanical sensor in the diaphragm pump body, a flow driving swing plate arranged in a material outlet pipe of the diaphragm pump and a leakage triggering floating ball valve arranged on an air source exhaust pipe of the diaphragm pump. The mechanical logic valve set is a three-input AND gate valve, and the diaphragm pressure difference mechanical sensor, the flow driving swing plate and the leakage triggering float ball valve are in signal connection with the three input ends of the three-input AND gate valve respectively to control opening and closing of the air source cut-off mechanism. The design is reasonable, a pure pneumatic multi-parameter fusion monitoring structure is adopted, and diaphragm state monitoring is achieved through four kinds of mechanical pneumatic sensors including pressure difference, flow, leakage and temperature.

This application discloses a face cream jar, belonging to the field of cosmetic packaging. The face cream jar includes a bottle body and a cap screwed to the top of the bottle body. An inner cap is provided at the port of the bottle body. A through hole is provided on the cap for inserting the inner cap. An upper cap connected to the inner cap is hinged to the end of the cap away from the bottle body. An insert plate is fixedly connected to the side of the upper cap away from its hinge. Multiple first inclined plates are fixedly connected at equal intervals along the vertical direction on the inner side of the insert plate. A first groove for fitting the insert plate is provided on the cap body. Multiple second inclined plates for fitting the first inclined plates are fixedly connected at equal intervals along the vertical direction in the first groove. By providing a through hole in the cap body and hinged an upper cap connected to the inner cap, the structure is simple and easy to operate. It can quickly open and close the inner cap, and when closed, it can ensure the sealing and stability between the upper cap and the cap body, effectively preventing the face cream from being contaminated by the outside world and improving the user experience.

The invention provides a photovoltaic module control device, method, equipment and medium, and relates to the field of photovoltaic technology, the device comprises an interaction module, a control module and a switch module; the interaction module is electrically connected with the control module; the control module is also electrically connected with the switch module; the switch module is further electrically connected with the photovoltaic assemblies and the inverter. The interaction module is used for sending a control signal to the control module when receiving an interaction signal; the control module is used for sending a switching signal to the switching module when receiving the control signal, and the switching signal comprises a turn-off signal; and the switch module is used for being disconnected when receiving the turn-off signal, so that each photovoltaic group string is disconnected from the inverter, and the photovoltaic modules in the same photovoltaic group string are disconnected in pairs. According to the invention, rapid turn-off of the photovoltaic module is realized.

The utility model relates to the technical field of heating pipe network valve, concretely is a kind of heating pipe network valve quick closing device, including valve body, the bottom fixedly connected with transmission case of valve body, the inside between valve body is equipped with ball, the inside lower issue of ball is inserted with valve core, the top fixedly connected with adjusting box of valve body, the front side fixedly connected with controller of adjusting box, the inside of transmission case is equipped with quick closing mechanism, the inside of adjusting box is equipped with adjusting mechanism.The utility model has realized the quick closing of valve body and flow rate regulation, has improved the timeliness and adjustability of device.

The utility model provides a kind of relay quick cut-off drive circuit, belong to power electronics technical field. Including control unit, power supply unit, first switch unit, first resistance, second resistance, PNP triode, first relay and first unidirectional conducting unit, the power supply unit has the emitter of connecting the PNP triode, the collector of the PNP triode is connected the first relay input end, the first relay output end is connected between the first switch unit and first resistance. The base of the PNP triode is connected between the first resistance and second resistance, the first unidirectional conducting unit is parallel in first relay both ends, the first unidirectional conducting unit is from first relay output end to first relay input end unidirectional conduction. When applied to STS, the cut-off speed of relay can be improved, finally realizes the quick disconnection of inverter INV and power grid GRID.