9results about How to "Reliable conduction" patented technology

The invention relates to the technical field of silicon carbide metal oxide semiconductor field effect transistor (MOSFET) driving, and particularly provides a silicon carbide metal oxide semiconductor field effect transistor (MOSFET) driving voltage control method and device, and the method comprises the steps: a driving circuit outputs a driving voltage to a grid electrode of a silicon carbide MOSFET; the driving voltage control circuit outputs an intermediate driving voltage to the source electrode of the silicon carbide MOSFET based on the power supply voltage; the driving circuit and the driving voltage control circuit are both powered by a power supply. According to the technical scheme provided by the invention, a single power supply is divided into two voltages, positive and negative voltages are applied to the grid electrode of the device, the negative voltage can be stabilized when the power supply voltage is too high, the grid-source negative voltage of the device is prevented from being too high, and the positive voltage is stabilized when the power supply voltage is relatively low. When the device is turned on, enough forward voltage is applied to enable the device to be reliably turned on.

The utility model belongs to the technical field of low-voltage electric appliances, and discloses a surge assembly and a contactor, the surge assembly comprises a circuit board, two elastic sheet terminals and a surge piece, the number of the elastic sheet terminals is two, each elastic sheet terminal comprises a fixed part and a connecting part which are connected with each other, and the fixed part is fixed on the circuit board; the surge piece is provided with two pins, the two pins are fixed on the circuit board, and the two pins are electrically connected with the two elastic piece terminals in a one-to-one correspondence mode through the circuit board. According to the surge assembly provided by the utility model, even if the surge assembly encounters impact vibration, the elastic piece terminal can enable the connecting part to always keep abutting against the wiring terminal through the elastic deformation of the elastic piece terminal, and stable and reliable conduction between the surge piece and the wiring terminal is ensured.

This utility model discloses a bidirectional circuit switching membrane button, comprising: a flexible base layer with a first conductive contact and a second conductive contact thereon; a seesaw-type movable layer, hinged to the base layer in the middle via an elastic fulcrum, and having a first pressing part and a second pressing part corresponding to the first and second conductive contacts at both ends; and a waterproof sealing layer covering the base layer and the movable layer, with an annular groove on its edge for fixed installation. The seesaw-type movable layer design enables bidirectional circuit switching, allowing flexible control of different circuit on / off states; the conductive contacts and pressing parts precisely correspond to each other, ensuring accurate contact during pressing and reducing circuit failures; the waterproof sealing layer covers the outside of the button, effectively preventing moisture, dust, and other impurities from entering and protecting the internal structure; the waterproof sealing layer reduces impact and damage to the internal structure of the button from external objects; and the annular groove on the edge of the waterproof sealing layer facilitates quick and stable installation of the button on the device, ensuring its firmness.

The invention belongs to the technical field of functional building materials, and particularly relates to an industrial waste-based energy storage and deicing building block brick, which comprises a cavity brick body, a brick cover arranged at the top of the cavity brick body, and a capacitor array arranged in a cavity of the cavity brick body, the cavity brick body is of a cuboid hollow structure, the top of the cavity brick body is open, the brick cover is a rectangular cover plate matched with the cavity brick body, the capacitor array comprises a plurality of capacitor monomers which are connected in series, and a separation diaphragm is arranged between every two adjacent capacitor monomers; each capacitor monomer comprises an anode electrode, an anode electrolyte, a diaphragm, a cathode electrolyte and a cathode electrode which are connected in sequence. The capacitor array is used as an energy storage unit to be integrated in the cavity of the cavity brick body, synchronous construction of energy storage and building block brick components is achieved through the cavity brick body-capacitor array-brick cover integrated structure, the system integration degree is high, the structure is compact, road paving and subsequent modular replacement and maintenance are facilitated, and the integrated energy storage and building block brick is suitable for application and popularization.

The utility model relates to the technical field of atomizers, and discloses an atomizing device, which is used for atomizing to generate aerosol and comprises a shell component, a first cavity and a ventilation channel, and the ventilation channel is configured to allow external air to flow through the interior of the shell component; the circuit board is arranged in the first cavity; the airflow sensor is accommodated in the first chamber and is directly welded on the circuit board; the sealing part is matched with the circuit board to form a containing space, the airflow sensor is located in the containing space, a starting vent hole is formed in the sealing part, and the airflow sensor is in airflow sensing communication with the ventilation channel through the starting vent hole. The air flow sensor structure at least can reduce pseudo soldering of a circuit board and an air flow sensor, is less in desoldering, enables circuit conduction to be more stable and reliable, improves yield, and reduces cost. The airflow sensor is in airflow sensing communication with the ventilation channel through the starting ventilation hole, the sensitivity of the airflow sensor is improved, and the phenomenon that the atomization device is not started is reduced.

The utility model discloses an atomizing core with a plane wall part, which comprises an outer sleeve, at least one surface of the wall part of the outer sleeve is a flat-plate-shaped plane wall part, the plane wall part is provided with a liquid inlet through hole, the inner wall of the outer sleeve is fitted and sleeved with a hollow atomizing bracket, and a heating mesh parallel to the plane wall part is arranged in the atomizing bracket. Electrode pins are arranged on the edges of the two sides of the heating mesh, penetrate through one end of the atomization support and extend out of one end of the outer sleeve, at least one liquid guide layer is further arranged in the atomization support, the liquid guide layer is tightly attached to the position between the heating mesh and the plane wall part, and the liquid inlet through hole is directly communicated to the surface of the liquid guide layer. An atomization cavity is formed in the side, not in contact with the liquid guide layer, of the heating mesh in the atomization support and communicated with the two ends of the outer sleeve respectively, one end of the outer sleeve forms an air inlet end, and the other end of the outer sleeve forms a mist outlet end. The utility model has the beneficial effects that the flat rectangular heating mesh enables the atomization channel to have a larger cross sectional area, so that the atomization amount is larger, and the atomization efficiency is higher.

The utility model belongs to the technical field of electric smelting elbows, in particular to an electric smelting elbow connector, which comprises connecting components fixed at two ends of an electric smelting elbow main body and used for connecting the electric smelting elbow main body with a water delivery pipe, and each connecting component comprises a polyethylene corrugated pipe and an adapter pipe; the polyethylene corrugated pipe is fixed to the end of the electric smelting elbow body, the adapter pipe is fixed to the end, away from the electric smelting elbow body, of the polyethylene corrugated pipe, the adapter pipe comprises a first straight pipe section, a flaring pipe section and a second straight pipe section, and the inner wall of the flaring pipe section is provided with a step-shaped hole. By arranging the polyethylene corrugated pipe, the bending angle and the bending direction can be changed at will within a safety range, it is guaranteed that the electric smelting elbow body is reliably communicated with the water conveying pipe, and the original form of the electric smelting elbow body does not need to be changed; and through the arranged adapter pipe, the structure form of the adapter pipe is convenient for the electric smelting elbow main body to be connected with various water conveying pipes with different diameters, and the application range is wide.

This invention discloses an underwater acoustic device and its assembly method. The underwater acoustic device includes a pressure sensor, a waterproof column, and a communication unit body. The waterproof column has a column perforation. The communication unit body includes a housing, an electronic component, a transducer, and a watertight terminal. The housing has a housing space, a mounting hole, and a water inlet. The mounting hole communicates with the housing space, and the water inlet communicates with the mounting hole and the external environment. The electronic component is housed in the housing space of the housing and has a converter circuit board. The transducer is mounted on the housing and connected to the electronic component. The watertight terminal is mounted on the housing and connected to the electronic component. The pressure sensor is attached to the converter circuit board. The bottom of the waterproof column is watertightly covered by the top of the pressure sensor, and the top of the waterproof column is watertightly mounted to the mounting hole of the housing.

The utility model relates to a copper sheet contact switch for a vehicle seat. The copper sheet contact switch comprises a sponge, copper sheets arranged on two sides of the sponge, rivets arranged on the copper sheets, terminals connected with the rivets, a wire harness connecting the terminals on the two sides, and a plug connector connected with a vehicle. The plug connector is connected with the wire harness; the sponge can be compressed to contact with the copper sheets on the two sides; and the terminal is fixed on the copper sheet by the rivet. The problem that a user always forgets to turn on the electric appliance, safety accidents are prone to occurring, a control structure is needed, and when the user leaves the vehicle, the user can turn on the functional electric appliance needing to be turned on even if no operation is carried out is solved. However, some seats are limited by the internal structure and space of a cushion, and a switching device which occupies less space and has a large contact range is needed.