3results about How to "Short opening time" patented technology

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 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.