12results about How to "Reduce power-on time" patented technology

The utility model relates to a switching device, which comprises a static contact component, a movable contact component, an operation part and an electric driving assembly, and is characterized in that the static contact component comprises a static contact; the movable contact component comprises a movable contact, the movable contact component is constructed to have a critical state, a first free state and a second free state, when the critical state is switched to the first free state, the movable contact moves in the direction close to the static contact so as to be in contact with the static contact, and when the critical state is switched to the second free state, the movable contact moves in the direction close to the static contact so as to be in contact with the static contact. In the first free state, the movable contact moves in the direction away from the static contact, and in the second free state, the movable contact and the static contact are kept separated; the operating part is used for driving the movable contact part to deviate from a critical state so as to move towards one of a first free state and a second free state; the electric driving assembly is configured to drive the movable contact part to deviate from the critical state in the power-on state so as to move towards the other one of the first free state and the second free state. Therefore, not only is the energy consumption of the switching device reduced, but also the service life of the switching device can be prolonged.

The invention discloses a low-carbon-dioxide-emission high-density carbon sphere for steelmaking and a preparation method thereof. The carbon sphere comprises the following chemical components in percentage by mass: 3-10% of oxide, 35-50% of C, 40-50% of Fe, 1-5% of St, and the balance of Fe. 0.1%, Plt; the water content is 0.03%, and the moisture content is 1t; 1%, 3-6% of an adhesive, and the balance of unavoidable impurities. The high-density carbon balls can suspend on a steel slag interface, the recarburization efficiency of the carbon balls to molten steel can be greatly improved, energy needed for steelmaking is ensured, the molten steel is stirred, denitrification is promoted, the steelmaking process gets rid of dependence on molten iron or pig iron raw materials with high carbon emission in the production process, and the overall reduction of carbon dioxide emission in the steelmaking process is achieved.

The invention discloses a high-sheet-resistance wet oxygen diffusion method for obtaining low-concentration BSG, and belongs to the technical field of solar cell preparation. A multi-step source introduction method is adopted, the source introduction time is shortened, the source introduction flow is increased, rapid heating promotion is achieved, and a wet oxygen oxidation method and a low-temperature deposition method are innovatively adopted; wherein the low-temperature deposition method can slow the reaction decomposition of an impurity source and reduce the concentration of the impurity source deposited on the surface of a silicon wafer, so that the content of impurities diffused into a silicon substrate is reduced, the effect of deep and shallow junctions is finally realized, and the method is an effective method for preparing low-concentration shallow junctions and obtaining high sheet resistance; according to the invention, high sheet resistance with excellent uniformity is realized while the BSG with low impurity concentration is obtained, the process time is shortened, the subsequent LECO process is ensured to be more ideally realized, and finally, the battery conversion efficiency is improved to the maximum extent and the process time is shortened to the maximum extent.

This application discloses a controller driving method, apparatus, device, and storage medium for a display panel. The method includes: downloading firmware from a first memory of a control board; after the firmware is downloaded, reading driving data from a second memory of the control board; if the identification information in the driving data is preset first identification information, then loading initial gamma compensation data from the first memory, wherein the preset first identification information indicates that gamma compensation data is not stored in the second memory. This application embodiment saves the power-on time of the timing controller by setting identification information in the driving data in the second memory to indicate whether gamma compensation data is stored in the second memory.

The utility model relates to air bag production equipment field on mattress, especially a gas nozzle welding machine with high safety. The existing gas nozzle welding machine lacks protection when the welding nozzle and welding platform are electrified, and electric shock accidents are prone to occur. The utility model provides a gas nozzle welding machine with high safety, which comprises a rack, a welding host and a welding pedestal arranged on the rack, a control box for controlling the welding host and the welding pedestal, a liftable welding nozzle arranged on the welding host, and a corresponding welding platform arranged on the welding pedestal. The welding nozzle and the welding platform are conductive during welding operation. The gas nozzle welding machine comprises an anti-electric shock protection structure with a baffle. The anti-electric shock protection structure can separate the welding nozzle and the welding platform from the outside during welding. The utility model separates the electrified welding nozzle and welding platform from the outside during welding operation through the anti-electric shock protection structure with a baffle, avoids electric shock accidents caused by personnel contacting the electrified welding nozzle and welding platform, and improves the safety of the gas nozzle welding machine.

This invention provides a passive infrared detection device that can shorten power-on time. The passive infrared detection device includes a pyroelectric infrared sensor and an amplifier circuit. The amplifier circuit uses a non-inverting negative feedback amplifier circuit powered by dual power supplies as the primary amplifier circuit. A step-down voltage divider circuit is configured to pull down the DC bias voltage of the detection signal output from the signal output terminal of the pyroelectric infrared sensor. In this way, at the beginning of power-on of the passive infrared detection device, there is a small voltage difference between the non-inverting and inverting input terminals of the operational amplifier of the primary amplifier circuit. This reduces the time required for the voltage between the non-inverting and inverting input terminals of the operational amplifier to become consistent during the charging and discharging process, thereby shortening the power-on time of the primary amplifier circuit.

The invention discloses a cooling method and device of a magnetic suspension motor, the magnetic suspension motor, a storage medium and a computer program product, a coolant pipeline is arranged at a motor winding of the magnetic suspension motor, and an electronic expansion valve is arranged on the coolant pipeline; the method comprises the steps that after a magnetic suspension motor starts to work, the target opening degree of the electronic expansion valve is determined according to the temperature of a motor winding; the electronic expansion valve is powered on in a pulse mode, and the power-on time of the electronic expansion valve is controlled according to the action frequency of the electronic expansion valve, so that the power-on time of the electronic expansion valve is shortened while the opening degree of the electronic expansion valve reaches the target opening degree, and heat at the position of the electronic expansion valve is reduced. According to the scheme, the electronic expansion valve is powered on in a pulse mode, and the power-on time is controlled according to the action frequency of the electronic expansion valve, so that the power-on time of the electronic expansion valve is shortened, heat at the electronic expansion valve is reduced, high-temperature failure of the electronic expansion valve is avoided, and stable operation of the magnetic suspension motor is ensured.

The utility model relates to a switching device, which comprises a contact assembly, a driving mechanism and an electric driving unit, and is characterized in that the contact assembly comprises a static contact and a movable contact which are oppositely arranged; the driving mechanism comprises a pushing piece, the pushing piece comprises a first position and a second position, the pushing piece enables the movable contact to be in contact with the static contact at the first position, and the pushing piece enables the movable contact to be separated from the static contact at the second position; the electric driving unit comprises a power-on state and a power-off state, and the electric driving unit can drive the driving mechanism in the power-on state to enable the pushing piece to move towards the first position and keep the pushing piece at the first position in the power-off state; the electric driving unit can drive the driving mechanism in the power-on state to enable the pushing piece to move towards the second position and keep the pushing piece at the second position in the power-off state. Therefore, not only can the energy consumption of the switching device be effectively reduced, but also the stability of state maintenance can be improved, so that the reliability of the switching device is effectively improved.

The utility model provides a passive infrared detection device that can shorten the power-on time, which comprises a pyroelectric infrared sensor and a multi-stage amplification circuit. The multi-stage amplification circuit comprises a primary amplification circuit and at least two secondary amplification circuits. Each stage of amplification circuit is provided with a negative feedback amplification circuit and has an operational amplifier OP, a feedback resistor R1 connected between the inverting input and output of the operational amplifier OP, and a series RC circuit connected to the inverting input of the operational amplifier OP. The total amplification factor of the multi-stage amplification circuit is greater than or equal to 1000, and the ratio of the resistance R1 in the feedback resistor and the resistance R in the series RC circuit in the same stage of amplification circuit satisfies 1 < R1:R ≤ 40. In this way, without changing the high-pass cutoff frequency and total amplification factor of the multi-stage amplification circuit, the power-on time is shortened by increasing the number of stages of the multi-stage amplification circuit and reducing the amplification factor of each stage of amplification circuit.

The utility model relates to the technical field of electric energy meter detection, and particularly discloses an electric energy meter and acquisition terminal detection device, which comprises a mounting seat, a magnetic piece and a transmission line, a plurality of through grooves are formed in the mounting seat, and the plurality of through grooves are arranged at intervals; the multiple magnetic pieces are inserted into the multiple through grooves in a one-to-one correspondence mode, and the two ends of each magnetic piece extend out of the corresponding through groove. One ends of the multiple transmission lines are connected to the multiple magnetic pieces in a one-to-one correspondence mode, and the other ends of the multiple transmission lines are connected to the detection equipment. According to the utility model, the magnetic members can magnetically attract the pulse terminals, and one-to-one corresponding connection between the plurality of magnetic members and the plurality of pulse terminals can be realized at one time, so that the installation seat is matched with the magnetic members to replace alligator clips to connect the pulse terminals, thereby shortening the power-on time, improving the detection efficiency of the electric energy meter, and improving the detection efficiency of the electric energy meter. And the plurality of transmission lines and the plurality of magnetic pieces do not need to be separated, so that the criss-cross condition of the plurality of transmission lines is avoided.

The utility model discloses an automobile crane emergency pump starting protection device which comprises a power supply bus, a data bus, an engine ECU (Electronic Control Unit), an emergency pump state instrument, an emergency pump motor controller, a master controller and an emergency pump switch, the emergency pump switch is connected between the power supply bus and the power input end of the emergency pump state instrument, data ports of the engine ECU, the emergency pump motor controller and the master controller are all connected to the data bus, and a PWM output port of the emergency pump state instrument is connected with a PWM input port of the emergency pump motor controller. The engine ECU and the master controller are subjected to data interaction through the data bus, the situation that the emergency pump and the engine are started at the same time is avoided, and the danger caused by system impact and misoperation is effectively avoided.

The utility model relates to an electromagnetic valve and a gas device. The electromagnetic valve comprises a shell structure, a first movable structure, a coil structure and a magnet. The first movable structure comprises a movable shaft, a plugging piece and a first elastic piece, the movable shaft is provided with a first end and a second end, the first end moves in the movable cavity in the axial direction, and the second end extends out of the shell structure; the plugging piece is mounted at the second end; the first elastic piece is arranged between the shell structure and the plugging piece, and the first elastic piece is used for providing elastic force away from the shell structure for the plugging piece; the coil structure is arranged on the shell structure; the movable magnet is movably installed in the containing cavity and can move between a first position and a second position in the containing cavity in the axial direction. According to the electromagnetic valve, the power-on time of the electromagnetic valve can be shortened, and the power consumption of the electromagnetic valve is reduced.