9results about How to "Reduce cooling pressure" patented technology

The application discloses an energy-saving LED display screen with a reverse common cathode and a driving method thereof, and belongs to the technical field of LED display. The application aims at the problem that the single voltage power supply of the traditional common anode LED display screen leads to high power consumption and serious heat generation of the first display content LED, and adopts a reverse common cathode structure of dynamic anode voltage switching + cathode time-sharing gating: the ICND2018 row driving IC provides switchable double voltages for the common anode of the LED, outputs 2.6~2.8V low voltage when the first display content is displayed, and outputs 3.6~3.8V standard voltage when the second display content and the third display content are displayed; three pieces of ICND1065L16 channel constant current sink column driving IC are matched to independently control the three-color cathodes of the first display content, the second display content and the third display content, and precise power supply of color separation is realized. Under the premise of being fully compatible with the existing SMDTOP three-in-one common anode lamp beads, the first display content LED loop voltage difference is reduced from 1.8V to 0.8V, and the power consumption of the single first display content lamp is reduced by about 55%.

The application discloses a kind of in-service energy storage battery performance evaluation method, belong to the technical field of energy storage battery safety monitoring.Evaluation method is by analyzing the overall data characteristics of energy storage battery cluster, constructs distributed multi-scale deep learning joint statistical regression algorithm, forms experience model;Wavelet analysis fusion addition counter is constructed, according to the power unit time cumulative principle, the cumulative power difference is calculated to determine the relative output difference of single compared with the remaining battery in the same group.Simultaneously, because the current of series battery is equal, only voltage difference exists, so current value data is not used, and voltage is used for monitoring.The application fuses deep learning experience model, wavelet analysis method, and combines the difference of vehicle-mounted computing power and traditional CPU, reduces the computing power consumption, vehicle-mounted energy consumption and heat stress, improves the safety performance of energy storage battery pack, prolongs the overall calendar life of battery, improves the battery resource utilization efficiency, and reduces the life cycle cost of battery.

This utility model provides a filtration device for a laminator, relating to the field of laminator filtration technology. It aims to solve the problems of poor filtration efficiency in existing vacuum pumps that use conventional paper filter elements to filter the gas generated during vacuuming. This allows impurities such as welding slag and iron filings to penetrate the filter element and enter the vacuum pump cavity, affecting normal operation. Furthermore, the accumulation of impurities and dust necessitates frequent inspection, maintenance, and upkeep of the vacuum pump and filter, increasing maintenance costs. The proposed device includes a vacuum pump system with a laminator vacuum valve installed on its left side. A filter tank system is installed between the vacuum pump system and the laminator vacuum valve. The tank serves as a pre-vacuum tank to pre-vacuum the cavity. A bypass design is used; after pre-vacuuming, the filter tank's function is disabled, and the pump directly evacuates the cavity, reducing pump load, effectively improving equipment evacuation efficiency, reducing vacuum pump filter consumption, and minimizing pump maintenance.

The invention provides an alternating-current power supply parallel operation communication control method, device and equipment and a storage medium, and relates to the technical field of power supplies, and the method comprises the steps: dividing a plurality of single-phase alternating-current power supply modules into a host or a slave through a first control sub-module in combination with configuration parameters; generating a handshake request signal through a second control sub-module of the host, and sending a handshake request to the second control sub-module of any slave connected with the host by using the Type-C parallel operation line; forwarding the handshake request by using a Type-C parallel operation line through a second control sub-module of the slave, and judging whether the host forms a handshake closed loop with all the slaves or not through a second control sub-module of the host; and if yes, performing data communication control through a second control sub-module of the host and a second control sub-module of the slave according to the combination mode and the phase mode of the alternating current power supply parallel operation system. The alternating current power supply parallel operation communication effect is improved through the alternating current power supply parallel operation system.

The invention relates to the technical field of hydrofluoric acid processing, in particular to an electronic-grade hydrofluoric acid processing system which comprises a raw material tank for storing liquid hydrogen fluoride, a dilute hydrofluoric acid tank for storing dilute hydrofluoric acid, a pure water tank for storing pure water and a finished product tank for storing finished hydrofluoric acid. A heat exchange module for heating liquid hydrogen fluoride into gaseous hydrogen fluoride is mounted at the output end of the raw material tank through a pipeline, a purification tower for removing impurities in the gaseous hydrogen fluoride is mounted at the gas output end of the heat exchange module through a pipeline, and a gas storage tank is mounted at the gas outlet end of the purification tower through a pipeline; an absorption tower is mounted at the output end of the gas storage tank through a pipeline; an absorption kettle is mounted at the liquid outlet end of the absorption tower; after the hydrogen fluoride liquid is gasified, impurities in gaseous hydrogen fluoride are removed to obtain high-purity gaseous hydrogen fluoride, and then hydrofluoric acid with the concentration gradually increased is generated in combination with pure water until the electronic-grade hydrofluoric acid conforming to process indexes is obtained.

The invention provides a radio-over-fiber link device based on a vertical cavity surface semiconductor device and electronic equipment, and the radio-over-fiber link device comprises an antenna array, a TR assembly, a laser array, a photoelectric detector array and a signal processing assembly, and a radio-over-fiber link comprising a transmitting and receiving bidirectional link is constructed through the cooperation of all the assemblies. Wherein radio-frequency signals received by the antenna array in the receiving link are amplified and filtered by the TR assembly, then electro-optical conversion and transmission are completed by the laser array, and the radio-frequency signals are restored into the radio-frequency signals by the photoelectric detector array and then are demodulated by the signal processing assembly; and in the transmitting link, a radio frequency signal is generated by the signal processing assembly, is converted into an optical carrier signal by the laser array for transmission, is restored by the photoelectric detector array, is processed by the TR assembly, and is transmitted by the antenna array. According to the invention, the long-distance transmission advantage of the optical carrier signal is enhanced, the overall power consumption and the heat dissipation pressure of the link are greatly reduced, and the stability and the large-scale application suitability of the optical carrier radio frequency link are improved.

This invention discloses a multi-powered combined unmanned aerial vehicle (UAV) intelligent cooling system, specifically comprising a core control unit, a power unit, an execution layer unit, a perception layer unit, and a decision-making layer unit. The physical components of each unit are integrated into a frame to form a flight module. The core control unit coordinates the operating conditions of the power unit and the cooling actions of the execution layer unit via a data bus. Temperature sensors in the perception layer unit collect real-time temperature data from the engine block, radiator, and main cooling channel. The decision-making layer unit dynamically generates drive signals based on the temperature data and the engine ECU's requirements. The system innovatively uses hollow tubing within the frame to form the main coolant channel, combining a liquid-cooled engine with an air-cooled radiator to form a composite cooling circuit. Intelligent flow regulation is achieved through solenoid valves and a circulating water pump, providing three modes: basic coordination, differential temperature control, and fuel preheating. This invention upgrades the UAV cooling system from passive heat dissipation to active thermal management, improving the operational efficiency and reliability of multi-powered UAVs.

This invention discloses a liquid-cooled circulating cooling battery swapping cabinet for liquid-cooled batteries, relating to the technical field of battery thermal management and battery swapping equipment. The invention includes: a guide slide installed inside the cabinet; a battery swapping chamber slidably connected to the inner wall of the guide slide; an elastic telescopic rod fixedly connected to the inner wall of the cabinet; an electric telescopic rod fixedly connected to the left side of the battery swapping chamber; and a heat dissipation mechanism for ventilation and heat dissipation provided on the inner wall of the battery swapping chamber. This invention can cool the battery during the battery swapping process of new energy liquid-cooled batteries, avoiding excessively high battery temperatures and low swapping efficiency due to long swapping times. The cooling medium circulates in a closed loop within the tank, significantly increasing the heat exchange area and thermal conductivity between the battery and the cooling medium, preventing localized high temperatures and rapid temperature rise, and improving charging safety and battery lifespan.

The application discloses a multi-dimensional uniform-temperature radiator, which comprises a front-end cavity of a radiator frame, a mounting plate arranged in the front-end cavity, an adjusting groove arranged at the rear end of the mounting plate, movable mounting strips arranged at the two sides of the adjusting groove, an internal cavity above a side heat dissipation plate and a middle heat dissipation plate, a distribution frame fixed in the internal cavity above the side heat dissipation plate and the middle heat dissipation plate, an adjusting assembly arranged in the mounting plate and the mounting disc, upper support plates slidably arranged at the two sides of the upper half of the middle heat dissipation plate and the side heat dissipation plate, telescopic rods fixed between the upper support plates and lower support plates on the middle heat dissipation plate and the side heat dissipation plate, air guide hoses connected between the two sides of the middle heat dissipation plate and the side heat dissipation plate, and support rods rotatably arranged between the middle of the middle heat dissipation plate and the upper support plates and the lower support plates on the side heat dissipation plate. The multi-dimensional uniform-temperature radiator can uniformly dissipate heat from inside to outside and can be suitable for electric elements of different sizes.