6results about How to "Short opening time" patented technology

The present invention relates to the field of manufacturing power distribution switch control equipment for the smart grid industry, and in particular to a circuit breaker mechanism and a circuit breaker using the same. The circuit breaker mechanism of the present invention includes: a base, a first cylindrical space with an axis in the vertical direction is formed inside the base; a repulsion mechanism housing is arranged in the first cylindrical space, and a second cylindrical space with an axis in the vertical direction is formed inside the base; an action mechanism includes: a repulsion disk, which is horizontally arranged in the second cylindrical space, a first moving rod, which extends upward from the center of the repulsion disk, and passes through the repulsion mechanism housing and the base; a repulsion mechanism, which is used to drive the action mechanism to move up and down; a holding mechanism, which is used to maintain the closing state and the opening state of the circuit breaker mechanism. Among them, the repulsion mechanism housing can move up and down in the first cylindrical space; under the drive of the repulsion mechanism, the repulsion disk can move from bottom to top in the second cylindrical space, and the movement speed is reduced after hitting the repulsion mechanism housing, thereby reducing bouncing.

This utility model relates to the field of tea utensil technology, and in particular to a tea tray drainage device. The tea tray drainage device of this utility model includes a carrier, a water pump, an air valve, and an electrical control device electrically connected to the water pump. The carrier is positioned below the tea tray. The carrier has a terminal drain outlet, a sealed cavity, and a tea tray connection port for communication with the tea tray. The water pump has a water pump inlet and a water pump outlet connected to the terminal drain outlet. The tea tray connection port, one end of the air valve, and the water pump inlet are respectively connected to the sealed cavity. The water pump is a peristaltic pump or a diaphragm pump. The start and stop of the water pump and the opening and closing of the air valve are configured to be controlled according to the water volume in the sealed cavity. This utility model can automatically remove tea residue and water from the tea tray, and the short start-up time of the water pump reduces the duration of noise and is relatively energy-efficient.

The utility model provides an IGBT driving circuit based on a push-pull structure, and relates to the technical field of power electronic device driving, and the IGBT driving circuit comprises an optocoupler isolation module which is used for receiving a control signal and providing electrical isolation output; the push-pull driving module comprises an NPN type triode Q1 and a PNP type triode Q2 which are complementary and symmetrical; the push-pull driving module is configured as follows: when the optocoupler is conducted, Q1 is saturated and conducted, Q2 is cut off, and a driving current charges an IGBT grid electrode through R2; when the optocoupler is turned off, the Q2 is saturated and turned on, the Q1 is turned off, and the driving current flows through the R3 to discharge the grid electrode of the IGBT. Bidirectional driving current is provided through a push-pull structure, the charge charging and discharging speed of the IGBT grid electrode is increased, the switching loss is reduced, bidirectional driving current is provided through a switch-on resistor R2 and a switch-off resistor R3, the resistance value of the switch-on resistor R2 is selected to be small, the purpose of reducing switch-on loss Eon is achieved, the resistance value of the switch-off resistor R3 is selected to be large, and the purpose of reducing switch-off Vce is achieved.

The embodiment of the present application discloses a method, apparatus, terminal device and storage medium for implementing SAR control, the method comprising: obtaining an average time period of a specific absorption rate SAR and a first SAR target value within the average time period; determining the on time and off time of the transmitter within the average time period based on the current first transmission power of the transmitter and the first SAR target value; controlling the on and off time of the transmitter based on the on time and off time of the transmitter within the average time period, so that the SAR average value within the average time period is less than or equal to the first SAR target value. In this way, the transmitter is controlled to work discontinuously, and the SAR average value within the average time period is controlled below a specified value by limiting the on time of the transmitter, and the transmitter always transmits data with a stable transmission power, which can ensure communication quality and avoid the risk of dropped calls.

The application discloses a kind of corrosion foil-based corrosion-resistant detection equipment and detection method, it is related to material corrosion-resistant detection technical field.The corrosion foil-based corrosion-resistant detection equipment, it includes: a plurality of passages are opened in the side of box, each passage is placed with material changing device, material changing device is set to move along horizontal direction and in and out of box, the lower side of the one end of each material changing device is provided with lower deflector, the side of each lower deflector away from box is provided with self-adapting cleaning device, and self-adapting cleaning device is used to absorb the liquid on the surface of material after salt fog treatment.The corrosion foil-based corrosion-resistant detection equipment and detection method, material moves in and out of box with placing plate, two ends of moving path are used as limit point, the sealing and rotation of placing plate are facilitated, and the placing plate after rotation is adapted to self-adapting cleaning device, and the replacement and cleaning of material are facilitated.

The present invention relates to a medium-pressure main steam valve operating seat, comprising a main housing and a starting valve housing arranged on one side of the main housing; a spring base which can move up and down is arranged inside the main housing to partition the inside of the main housing into an upper oil chamber at the top and a lower oil chamber at the bottom; a connecting rod is arranged at the bottom of the spring base; an upper piston which can move up and down is arranged inside the starting valve housing to partition the starting valve housing into an upper reset oil chamber and a lower return oil chamber at the bottom; the return oil chamber is connected to a safety oil chamber through an oil return passage; the upper piston can move downward to block the oil return passage; the return oil chamber is connected to the upper oil chamber, and the safety oil chamber is connected to the lower oil chamber; the reset oil chamber is connected to the outside through a reset oil port, the return oil chamber is connected to the outside through a return oil port, and the safety oil chamber is connected to the outside through a safety oil port; the present invention presses the upper piston and blocks the return oil passage by introducing reset oil into the reset oil port, and does not need to manually lock the brake, thereby reducing the danger during the startup process.