6results about How to "Reduce cooling burden" patented technology

The application discloses an embedded voltage-stabilized heat-dissipation PCB structure with a thermoelectricity synergic regulation layer and a preparation method thereof. The structure comprises at least one PCB inner layer and a chip power supply pad arranged on the inner layer, and a ring-shaped or C-shaped thermoelectric material pattern (ZT>0.5 at room temperature) is embedded in a region corresponding to the chip power supply pad directly below the inner layer. A first end of the thermoelectric material pattern is electrically connected to a power supply layer, and a second end is electrically connected to a grounding layer or a heat-dissipation through hole. The application utilizes the temperature difference during the operation of a chip to drive the thermoelectric material to generate a reverse electromotive force to inhibit power supply ripple, and simultaneously utilizes the Peltier effect to actively pump heat, so that the inner layer is integrated with voltage stabilization and heat dissipation. The power supply ripple can be reduced by 25% to 42% and the surface temperature of the chip can be reduced by 11 DEG C to 14 DEG C by using the PCB structure. The application directly integrates the thermoelectric function in the PCB inner layer, does not occupy the surface layer area, and is suitable for the packaging substrate of high-performance computing chips.

The present invention relates to the technical field of air condensation heat exchange equipment, and specifically to a high-efficiency heat exchange air conditioning unit based on the secondary utilization of low-temperature refrigerant and a method thereof. The unit includes a compressor, a condenser, an evaporator and an expansion throttle valve, wherein a liquid storage tank is arranged between the evaporator and the expansion throttle valve, and a first return pipe is arranged on the evaporator; a cooling pipe is connected to the bottom of the condenser, one end of the cooling pipe is connected to the liquid storage tank, and the other end is connected to a fourth delivery pipe. By arranging a liquid storage tank and a first return pipe between the expansion throttle valve and the evaporator, it is possible to recover the unvaporized liquid refrigerant and avoid damage to the compressor caused by liquid hammer; at the same time, the low-temperature refrigerant in the liquid storage tank is used to exchange heat with the refrigerant at the bottom of the condenser, which effectively reduces the temperature of the condenser, reduces the burden on the compressor, and improves the operating efficiency and stability of the system.

The invention belongs to the technical field of driving circuits, and discloses an electromagnetic coil driving circuit which comprises a waveform driving circuit, an adjustable follow-up power supply circuit and a coil. The waveform driving circuit is connected with the adjustable follow-up power supply circuit; the waveform driving circuit is used for amplifying the amplitude of the input current and converting an input sinusoidal signal into a sinusoidal waveform; the adjustable follow-up power supply circuit is used for adjustably controlling the voltage input into the waveform driving circuit according to a control signal; the coil is connected with the waveform driving circuit; and the coil is used for outputting the sinusoidal waveform. A fixed power supply of the current type coil driving circuit is changed into the follow-up power supply, and the power supply is provided by the adjustable follow-up power supply, so that the power consumption is reduced, the heat dissipation burden of equipment is relieved, the performance and the service life of elements are improved, the stability of the whole equipment circuit is improved, the current can be adjusted as required, the coil current is increased, and the service life of the coil is prolonged. The magnetic field intensity is enhanced.

This invention relates to the field of industrial data control technology, specifically to an energy-saving control method and equipment for a quick-freezing machine in a pre-prepared food production line. The method includes: acquiring speed, temperature, and weight data on the conveyor belt of the quick-freezing device in the pre-prepared food production line; acquiring the degree of temperature fluctuation and obtaining a temperature spatial uniformity index by combining the differences and trends in temperature fluctuation between different monitoring locations; analyzing the distribution density of pre-prepared dishes based on weight data within each monitoring time period, and obtaining an effect evaluation value by combining speed data and the temperature spatial uniformity index; analyzing the cooling adequacy of pre-prepared dishes based on the trend of the effect evaluation value within each monitoring time period to obtain a cooling demand index; and weighting the temperature data according to the cooling demand index and the time interval between each time period and the current time period to obtain an energy-saving control strategy for the quick-freezing machine at the current time period. This invention can dynamically adjust the refrigeration strategy and avoid resource waste.

The utility model relates to the technical field of superconducting magnet cooling, and discloses a liquid-helium-free superconducting magnet cooling device which comprises an installation disc, the inner wall of the installation disc is fixedly connected with a magnet container body, the outer wall of the installation disc is fixedly connected with an electric push rod, and the output end of the electric push rod is fixedly provided with a sliding block. A sliding strip is slidably connected to the outer wall of the sliding block, the upper surface of the sliding strip is fixedly connected to the inner wall of the magnet container body, a sealing disc is fixedly connected to the outer wall of the sliding block, the inner wall of the rotating ring is rotatably connected to the inner wall of the magnet container body, and a sealing assembly is arranged on the inner wall of the sealing disc; the sealing assembly is used for maintaining the vacuum environment of the equipment. According to the utility model, the sliding block is pushed and pulled through the electric push rod, so that the sliding block drives the sealing disc to slide, and the effects of keeping the vacuum degree around the magnet, enabling the magnet to be in a low-heat-conduction environment, maintaining a low-temperature state and reducing the refrigeration burden of a refrigerator are achieved.

The application discloses a charging control circuit and an atomization device, wherein the charging control circuit is applied to a battery of the atomization device and comprises a charging interface; the charging interface is provided with a power supply pin; a first charging chip is provided with a first input pin and a first output pin and is used for transforming an external current to output a first current; a second charging chip is provided with a second input pin and a second output pin and is used for transforming an external current to output a second current; an output port is electrically connected with the first output pin and the second output pin and is used for inputting a current to the battery; and the first input pin and the second input pin are electrically connected with the power supply pin. The first charging chip and the second charging chip respectively transform and output the first current and the second current, the heat dissipation burden of each chip is small, the heat generated in the charging process is dispersed, the concentration of the heat is reduced, the working efficiency and the service life of the chip are improved, and the risk of failure caused by overheating is reduced.