7results about How to "Reduce temperature fluctuations" patented technology

The invention discloses a double-temperature condensation heat pump system, a control method and a clothes dryer, and the system comprises a double-stage compressor with a low-pressure-stage air cylinder and a high-pressure-stage air cylinder, a flow dividing control unit, a low-temperature heating loop, a high-temperature heating loop, an unloading protection unit and a control system. A refrigerant can be distributed to different heating loops according to the proportion, so that continuous adjustable output of low-temperature, medium-temperature and high-temperature heat is achieved, a high-pressure-stage air cylinder keeps low-power-consumption operation under the low-load working condition through an unloading protection structure, the reliability and the energy efficiency level of the system are improved, and the energy efficiency is improved. According to the control method, a low-temperature mode, a high-temperature mode or a mixed mode is selected according to the target temperature, closed-loop adjustment is carried out, the temperature adjusting process is stable and continuous, the invention further discloses a clothes dryer adopting the system, appropriate temperatures can be provided in different drying stages, the drying efficiency is improved, clothes damage is reduced, and the clothes dryer is suitable for being used in different drying stages. And meanwhile, the device has the advantages of compact structure, stable operation and wide application range.

This utility model relates to a high-efficiency energy-saving system window profile and window installation structure in the field of mechanical equipment technology. It includes an indoor profile and an outdoor profile, both of which have installation cavities filled with phase change material microspheres. Multiple panes of glass are placed between the indoor and outdoor profiles. The installation cavities of both the indoor and outdoor profiles are filled with phase change material microspheres. These microspheres are energy storage materials based on phase change material (PCM) technology, encapsulated into particles with diameters between 1 and 1000 micrometers using microencapsulation technology. They are used to store and release latent heat. Through the material's high thermal stability, good cycle performance, and excellent energy storage characteristics, it regulates indoor temperature, insulates the interior, mitigates temperature fluctuations, and achieves energy-saving effects.

This application provides a temperature control method, apparatus, electronic device, and storage medium for an etching stage. First, the real-time temperature of the etching stage and the real-time temperature control fluid are acquired. Then, based on the real-time temperature of the etching stage, the real-time temperature of the temperature control fluid, and a limiting temperature, a temperature control command is determined. Finally, a circulating temperature control fluid loop responds to the temperature control command, stabilizing the target operating temperature of the etching stage within a preset range. By increasing the feedback quantity of the real-time temperature of the etching stage, the response speed of temperature control is improved, and the temperature overshoot is reduced, resulting in a more regular temperature distribution on the substrate during etching. This solves the technical problem in existing technologies where uneven temperature distribution on the etching stage leads to substrate deformation and poor etching quality. The method achieves controllable and regular substrate deformation, ensuring the etching effect meets design expectations and improving etching quality.

This invention discloses a TEC composite structure integrating microchannels and a series-enhanced thermoelectric arm array, and its fabrication method. The structure includes: a first thermally conductive layer and a second thermally conductive layer, both with liquid flow microchannels on their outer surfaces; a first electrode layer located on the inner surface of the first thermally conductive layer; a second electrode layer located on the inner surface of the second thermally conductive layer; and multiple TEC units located between the first and second electrode layers. Each TEC unit includes P-type thermoelectric arms, N-type thermoelectric arms, and suspended thermoelectric arms. The P-type and N-type thermoelectric arms are arranged alternately. The suspended thermoelectric arms are suspended between the P-type and N-type thermoelectric arms and include P-type and N-type thermionic arms. Connections between the P-type and N-type thermoelectric arms, between the N-type and P-type thermoelectric arms, and between the P-type and N-type thermoelectric arms are all achieved through metallic materials. This invention simultaneously achieves ultra-strong hot-end heat dissipation, ultra-low thermal bypass leakage, and high interface reliability in TEC.

The utility model belongs to the technical field of chemical sampling, and particularly relates to a phosphate solution sampling device which comprises a constant-temperature box body, and a sealing cover is arranged on the side wall of the constant-temperature box body; a temperature sensor is fixedly connected to the side wall of the constant-temperature box body; a supporting rod is fixedly connected to the bottom of the inner side of the constant temperature box body; the top of the supporting rod is fixedly connected with a circulating pipe; the top of the circulating pipe is fixedly connected with a water filling nozzle; the bottom of the circulating pipe is fixedly connected with a water outlet; an electric push rod is fixedly connected to the bottom of the inner side of the constant-temperature box body; the top of the electric push rod is fixedly connected with a pressing plate. A plurality of placing grooves are formed in the bottom of the inner side of the constant temperature box body; the sampling bottle can be kept at a constant temperature in the constant-temperature box body by additionally arranging the circulating pipe, so that the situation that the temperature of the phosphate solution in the sampling bottle fluctuates, so that the measurement error of the phosphate solution is caused is reduced, and the integrity of the sampled phosphate solution is further improved.

The invention relates to a linear adjustable pressure-slippage combined sensing liquid alloy flexible electronic skin for closed-loop grabbing of a robot, and relates to the technical field of liquid alloy microfluidic devices. Comprising an upper-layer elastic base body, a lower-layer elastic base body, a first liquid alloy micro-channel conduit array, a second liquid alloy micro-channel conduit array, a continuous insulation isolating layer and an end connecting structure, the first liquid alloy micro-channel conduit array is arranged in the upper-layer elastic matrix, and the second liquid alloy micro-channel conduit array is arranged in the lower-layer elastic matrix; the continuous insulation isolation layer is arranged between the first liquid alloy micro-channel conduit array and the second liquid alloy micro-channel conduit array; the end connecting structure is connected with the first liquid alloy microchannel catheter array and the second liquid alloy microchannel catheter array. A mutual capacitance sensing array is formed through upper and lower layering, orthogonal crossing and continuous insulation isolation layers, and flexible touch sense and slippage sensing of parts such as fingertips, palms and joints of a robot are achieved.

This invention discloses a diamond heat sink with a high coefficient of thermal expansion and a method for its fabrication. The heat sink includes a diamond composite thermally conductive layer, a heat dissipation layer, a flow distribution layer, and an inlet / outlet water layer arranged from bottom to top. The cooling medium enters the multi-level topological microchannels of the heat dissipation layer through the inlet of the inlet / outlet water layer and then flows back to the flow distribution area at the top of the flow distribution layer, and is discharged through the outlet of the inlet / outlet water layer. The electrical control system of the heat sink is electrically connected to the device being cooled and is used to realize synchronous linkage control between the device power output and the water flow driving state through electrical signals. When the device being cooled outputs different power under different driving current conditions, the water flow velocity of the cooling medium changes accordingly. The system automatically adjusts the number of topological microchannels involved in the flow according to the change in water flow velocity to achieve effective heat dissipation and precise temperature control of the device being cooled.