146 results about "Passive cooling" patented technology

The invention relates to the technical field of intelligent cables, in particular to an automatic sensing and monitoring intelligent cable and a control method, and the method comprises the steps: collecting the temperature data of a cable, processing the temperature data in time and space based on the temperature values of all positions and all times in the temperature data of the cable, and constructing a temperature space-time matrix of the cable; performing prediction according to the temperature space-time matrix of the cable to obtain a temperature space-time matrix containing a plurality of moments after the current moment, and taking the temperature space-time matrix as a predicted temperature space-time matrix of the current moment; determining a cooling regulation and control coefficient by using the temperature change and distribution condition in the predicted temperature space-time matrix at the current moment; and performing temperature regulation and control on the cable based on the cooling regulation and control coefficient. According to the invention, the conversion from passive cooling to active prevention is realized, faults and fire risks caused by overheating are effectively prevented, and the distribution and utilization efficiency of cooling resources is optimized at the same time.

A composite material for passive cooling includes a porous structure including an expanded graphite and a surfactant, the porous structure being provided with at least one crystalline deliquescent salt that is selected from the group consisting of chloride, bromide, sulphate, and nitrate. The uses of the composite material in passive cooling are also addressed.

Systems and methods are provided for managing temperature inside a wireless power transfer (WPT) system for an electric vehicle. A thermal management system of a WPT system uses one or more of a passive cooling method, a semi-active cooling method, and an active cooling method to manage an internal temperature of the WPT system during a charging session. Improvements in thermal management allow for longer duration of charging sessions and higher power charging sessions without the need to suspend charging for cooling. In addition, several different methods of camouflaging and implementing a thermal management system in a public space are also provided.

The invention belongs to the technical field of building construction, and particularly provides a device for cooling concrete coarse aggregate by using cooling water, which comprises an aggregate storage bin, a temperature sensor, a weight sensor and a control unit, the top of the aggregate storage bin is provided with a water inlet and a feed inlet, the bottom of the aggregate storage bin is communicated with a water collecting device, and a water filter screen and a baffle are mounted in the aggregate storage bin; temperature sensors are mounted in the water inlet, the feed port and the water collecting device, weight sensors are mounted on the baffle and in the water collecting device, and the control unit comprises a heat exchange kinetic model and a water content calculation model. The concrete aggregate cooling device can conveniently cool concrete aggregate, can measure aggregate delivery temperature and moisture content data, realizes conversion from passive cooling to predictive intelligent control, effectively controls concrete mold entering temperature, reduces cracks caused by hydration heat, and improves mass concrete construction quality and structural safety. The invention also provides an operation method of the device for cooling the concrete coarse aggregate by using the cooling water.

Methods and systems for managing cooling of a data processing system. In particular, active cooling using a fan controlled by an embedded controller is provided in a data processing system having components from a thermal architecture that is only capable of providing passive cooling through throttling of a motherboard of the data processing system. The thermal architecture is based on a passive cooling thermal architecture of a computing device without the capacity to include the fan and the embedded controller, and the motherboard is one of the components of the thermal architecture.

The invention discloses a preparation method of an h-BN / BMSC daytime radiation refrigeration material, which comprises the following steps: (1) blending 39.9-66.5 parts by mass of few-layer h-BN nanosheets and 133 parts by mass of light calcined magnesia, and slowly stirring to obtain a mixed material; (2) dispersing an additive into 61 parts by mass of a magnesium sulfate heptahydrate solution, uniformly mixing, adding into the mixed material in the step (1), and stirring at a high speed to obtain slurry; and (3) putting the slurry obtained in the step (2) into a mold, and curing at room temperature to obtain the few-layer h-BN / BMSC composite material. The prepared gelling-based composite material has good radiation cooling performance and heat dissipation performance in an outdoor high-temperature environment, and can be used as a radiation cooling heat dissipation material with the temperature higher than the environment temperature. The passive cooling heat dissipation plate has important significance in improving the working efficiency of outdoor electronic equipment in a high-temperature environment, prolonging the service life and guaranteeing the reliability of a system.

This application provides a layered, environmentally friendly waterborne radiative cooling coating composition, belonging to the field of radiative cooling. The coating composition includes a waterborne radiative cooling primer, a topcoat, and a clear coat. The primer comprises 20-50 parts of a first waterborne emulsion, 10-20 parts of a narrow bandgap optical scatterer, and 10-20 parts of a wide bandgap optical scatterer. The topcoat comprises 20-50 parts of a second waterborne emulsion and 30-60 parts of a wide bandgap optical scatterer. The clear coat comprises 20-50 parts of a third waterborne emulsion. This coating utilizes a synergistic layering of primer / topcoat / clear coat and optimized wide bandgap filler gradation to achieve high solar reflectivity and mid-infrared emissivity at a thinner film thickness, resulting in significant passive cooling. The all-waterborne system disperses and dries at room temperature, resulting in low energy consumption and no VOC risk. The layered structure enhances adhesion, weather resistance, and self-cleaning properties. Compared to high-filler thick-coating processes, this application saves raw materials, energy consumption, and construction steps, extends maintenance cycles, and reduces total life-cycle costs.

The present invention discloses a photovoltaic panel passive cooling system that automatically absorbs water and evaporates it for cooling based on capillary action. The system comprises: a photovoltaic panel, a photovoltaic bracket, a wicking material, a water supply assembly, a water pipe, a water storage tank, and an adjustment and fixing assembly. The photovoltaic panel is fixedly mounted via the photovoltaic bracket and can be mounted horizontally, tilted, or vertically. The ends of the water supply assembly are arranged horizontally along the two side edges of the photovoltaic panel. The wicking material is attached to the back of the photovoltaic panel, with its lower end extending into the water supply assembly. The water supply assembly is connected to the water storage tank via a water pipe. The adjustment and fixing assembly connects the water supply assembly and the photovoltaic panel, respectively, and is used to adjust the vertical position of the water supply assembly. The present invention achieves energy-saving, water-saving, efficient, and reliable photovoltaic panel cooling, thereby improving the power generation efficiency and operating life of the photovoltaic system.

A passively-cooled personal computer includes a housing, a motherboard disposed within the housing, a central processing unit (CPU) mounted on the motherboard, and a passive cooler thermally coupled to the CPU. The passive cooler includes a plurality of heat pipes and at least one set of stacked fins. The heat pipes extend through the fins and transport heat from the CPU to the fins. The set of stacked fins has a large cross-section in a horizontal plane and a small cross-section in a vertical plane.

The invention discloses a solid waste-based micro-nano radiation cooling coating and a preparation method thereof.The preparation method comprises the steps that fly ash and coal gangue serve as main solid waste raw materials, and after being subjected to ultra-fining and silane modification, the main solid waste raw materials and a phosphate exciting agent are subjected to chemical action to form an inorganic micro-nano gel matrix; nano-silica (SiO2) and barium sulfate (BaSO4) are cooperatively introduced as a spectrum regulation functional filler, and a multi-scale scattering structure and an intermediate infrared radiation channel are constructed, so that the radiation cooling effect of high solar reflectivity and high infrared emissivity is realized. The prepared coating has excellent spectral selectivity (the solar reflectivity is larger than or equal to 0.88, and the mid-infrared emissivity is larger than or equal to 0.95), high weather resistance (the 500-hour ultraviolet aging retention rate is larger than or equal to 95%) and remarkable passive cooling capacity (the temperature drop can reach 5-8 DEG C). The raw materials are wide in source, the preparation process is simple, a large amount of building solid waste or industrial solid waste can be utilized, the low-cost and high-performance green radiation cooling coating is achieved, and a technical path capable of being popularized on a large scale is provided for building outer wall energy-saving transformation and urban heat island relieving.

This invention relates to the field of heat dissipation airflow mesh technology, and provides an airflow mesh for passive airflow cooling, including a pipe assembly, a clamping assembly, and an adjusting assembly. The pipe assembly includes a main pipe, a secondary pipe, an adjusting pipe, a vertical plate, and a horizontal plate. The clamping assembly, sleeved on the outer wall of the adjusting pipe, includes a fixed plate, a movable part, a rotating plate, and a support block. The adjusting assembly is located at one end of the main pipe and inside the main and secondary pipes, and includes a motor, a rotating shaft located at the output end of the motor, a drive bevel gear sleeved on the end of the rotating shaft away from the motor, a rotating part located on the end of the drive bevel gear away from the rotating shaft, and a spiral part sleeved on the rotating part. The function of the pipe assembly is to connect traditional heat dissipation pipes in sections, and through the combined effect of the septum effect and Bernoulli's principle, to compress the gaseous working fluid and release heat, which is conducted away through the metal thermally conductive material, thereby reducing the temperature of the airflow after it passes through by approximately 50 watts / m² / m / s.

The invention discloses an energy-saving air conditioning system for a building. The energy-saving air conditioning system comprises a ventilation shaft, a tunnel air pipe, a TLambert wall, a sky radiation layer and a heat storage layer. The heat storage layer is arranged at the top of the ventilation shaft; the TLambert wall is arranged on the sunny side of the ventilation shaft and is relatively close to the top of the ventilation shaft; the sky radiation layer is arranged on the shady side of the ventilation shaft and is relatively close to the bottom of the ventilation shaft; the tunnel air pipe is used for being communicated with or disconnected from the bottom of the ventilation shaft so that temperature difference can be formed in the ventilation shaft and air can be driven to flow from bottom to top. A condensation face is arranged in the ventilation shaft, and the condensation face is located on an air flowing path and used for dehumidifying air. A coupled passive cooling and dehumidifying building energy-saving air conditioning system is formed by tunnel air, sky radiation, a Tembert wall, phase change heat storage and a condensing surface, and the cooling and dehumidifying effects can be achieved by completely depending on renewable low-grade natural energy without mechanical driving such as a fan or a compressor.

The invention discloses a radiation refrigeration material based on evaporative cooling synergistic enhancement and a preparation method and application thereof.The material comprises a radiation refrigeration layer, a moisture power generation layer and a base material supporting layer, and integration of three passive cooling and energy collection functions of passive refrigeration, evaporative cooling and moisture power generation is achieved on fabric; the limitation that all functions exist independently and are difficult to cooperate in the prior art is broken through, the three functions are organically combined and synergistically interacted on the same fabric platform, a complete energy closed-loop system of passive cooling, energy collection and active adjustment / sensing is achieved, energy circulation of the environment and the human body is completely relied on, and the energy utilization rate is improved. And a brand-new functional solution is provided for the wearable device.

The invention relates to the technical field of air conditioners, in particular to an air conditioning device with internal air water circulation passive cooling, which comprises an air conditioner, the air conditioner comprises an indoor unit, an outdoor unit and a connecting pipeline, the outer wall of the connecting pipeline is provided with a circulation mechanism, and the outer wall of the indoor unit is provided with a passive cooling mechanism; the circulating mechanism comprises a flow guide pipe fixedly connected into the condensation pipe in the connecting pipeline, a filtering tank is fixedly connected to the end, away from the connecting pipeline, of the outer wall of the flow guide pipe, and a piston plate is slidably connected into the filtering tank. The indoor humidity is relatively low, and the requirements of a user cannot be met.

The present invention relates to a passive cooling system comprising a radiative heat exchanger and a convective heat exchanger comprising a heat transfer fluid. The radiative heat exchanger comprises a glass substrate having at least a silver reflective layer comprising at least ≥700mg / m2 of silver.

The application discloses a low-energy-consumption passive heat dissipation system for supercomputing / data centers, wherein the top end of each type of containerized extensible case is connected to one end of a non-activated cooler through a pipeline, the other end of the non-activated cooler is connected to one end of a liquid distribution system through a pipeline, and the other end of the liquid distribution system is connected to the bottom end of each type of containerized extensible case, so as to form a closed pipeline system. The heat dissipation system adopts an "insulation cooling liquid immersion cooling" + "separated heat pipe" + "high-efficiency compact condenser" heat and mass transfer process, is of passive heat dissipation throughout, greatly reduces the heat dissipation power consumption of the supercomputing / data center, and can realize an ultra-low PUE value. In addition, the system can realize higher compactness of architecture assembly and reduce the space occupation scale of the supercomputing / data center. The heat dissipation system has high heat dissipation power, high heat dissipation capacity expandability, fast and convenient computer on / off operation, energy saving and environmental protection.

A cooling film for passively cooling modular data centers, power transformers, and other surfaces. The cooling film includes a specular reflective multilayer mirror film attached to a passive cooling heat transfer fin. The anti-fouling layer is secured to the first major surface of the specular reflective multilayer film. The specular reflective multilayer film may include a metal layer and specularly reflects electromagnetic radiation over a majority of wavelengths in the range of 400 nm to 2500 nm. The specular reflective multilayer film may also include a multilayer optical film including a first optical layer and a second optical layer that constructively reflect electromagnetic radiation over a majority of wavelengths in the range of 400 nm to 2500 nm while absorbing electromagnetic radiation over a majority of wavelengths in the range of 4000 nm to 20000 nm.

busbar (100), wherein the busbar (100) forms a receptacle (102) for a cooling cell (104) and the cooling cell (104) is arranged in the receptacle (102), wherein the receptacle (102) is configured to thermally couple the cooling cell (104) to the busbar (100), wherein a heat storage medium (300) is arranged in an interior space (208) of the cooling cell (104) and the cooling cell (104) is configured to passively temperature control the busbar (100), wherein the heat storage medium (300) incompletely fills the interior space (208), wherein a remaining volume of the interior space (208) is filled with a noble gas (304).

The invention relates to the technical field of charging piles, and discloses a charging pile protection structure and a charging pile thereof.The charging pile protection structure comprises a base, an electric box protection shell is fixedly connected to the top of the base, square box bodies are fixedly connected to the left side and the right side of the electric box protection shell correspondingly, and drainage cooling assemblies are arranged in the square box bodies; the left side and the right side of the exterior of the square box body are each provided with two installation assemblies, the top of the electric box protection shell is fixedly connected with a waterproof top plate, the drainage cooling assembly comprises a ventilation opening, and the exterior of the ventilation opening is fixedly connected to the interior of the square box body. Through the ventilation opening and the filter screen arranged on the square box body, impurities can be prevented from entering, clean rainwater can be actively collected into the water storage tank, the stored water body can effectively absorb heat generated in the operation process of the charging pile and evaporate the heat, and a passive cooling device without additional energy consumption is formed.

The utility model discloses a switchable power supply module load capacity testing device which comprises an acrylic base, two acrylic supports are symmetrically installed on the top surface of the acrylic base, and a resistance wire is installed between the two acrylic supports. The device comprises an acrylic base and further comprises a rectangular base, a direct-current voltmeter, a direct-current ammeter, a wiring alligator clip and a ship-shaped switch, the rectangular base is fixed to the surface of the top of the acrylic base, a positive terminal and a negative terminal are installed on the top of the rectangular base, and the direct-current voltmeter, the direct-current ammeter and the ship-shaped switch are placed on the top of the acrylic base; the device is reliable in performance, safe and stable, the device does not contain an electrolytic capacitor, an electronic power switch tube, a cooling fan and other vulnerable devices with limited service life, the resistance wire is made of an anti-oxidation nickel alloy and is long in service life, the resistance wire is installed on the acrylic base in an overhead mode, the mica sleeve is used for heat insulation, a framework cannot be ignited, the resistance wire adopts a fan-free passive cooling mode, and work is stable; wiring is simple and adjustment is convenient.

The utility model relates to the technical field of thermal management of power equipment, and discloses a passive cooling outdoor power cabinet which comprises a base, a box body is assembled on the top of the base, a top cover is assembled on the top of the box body, a rainproof auxiliary assembly is arranged between the box body and the top cover, a passive heat dissipation assembly is arranged in the box body, and the passive heat dissipation assembly is arranged in the box body. A power distribution box is assembled in the box body, the passive heat dissipation assembly comprises an aluminum base, the aluminum base and the power distribution box are assembled together, a heat dissipation pipe is assembled on the side, away from the power distribution box, of the aluminum base, a plurality of heat dissipation fins are evenly distributed on the periphery of the heat dissipation pipe, and the rainproof auxiliary assembly comprises a rainproof plate. According to the utility model, through cooperation of the aluminum base, the heat dissipation pipe, the heat dissipation sheets, the air inlet, the air outlet and other structures, it is ensured that power equipment operates in a suitable temperature environment, the service life of the equipment is prolonged, the failure rate is reduced, the heat dissipation efficiency of the power cabinet is improved, and the heat dissipation cost is reduced.

The present disclosure provides a radiative cooling article including a white diffusely reflective microporous layer and a non-white color reflective mirror film having first and second optical layers. The white diffusely reflective microporous layer has a solar weighted reflectivity at normal incidence of electromagnetic radiation over a majority of wavelengths in a range of 350 nanometers (nm) to 2500 nm of 0.8 or greater, 0.85, 0.9, or 0.95 or greater. The non-white color reflective film is disposed adjacent to a major surface of the white diffusely reflective microporous layer and the non-white color reflective film reflects a wavelength bandwidth of at least 30 nm within a wavelength range of 350 nm to 700 nm. The non-white color reflective film can be tuned to reflect light of a specific color (e.g., blue light, green light, or red light). The radiative cooling article may be useful for applications including commercial graphics located outdoors (e.g., on vehicles or buildings). The present disclosure further provides a composite cooling article including the radiative cooling article attached to a vehicle or a trailer. Also, the present disclosure provides a multi-surface passive cooling article including first and second elements in which at least one of the elements includes the radiative cooling article.

The present invention relates to a cooling assembly comprising an evaporator containing a primary cooling medium, a passive condenser, a heat exchanger, and a flow control valve controlling the flow of the primary cooling medium into the evaporator. When a secondary cooling medium is provided to the heat exchanger, the primary cooling medium in the gas phase switches from being received by the passive condenser to the heat exchanger without operating any valves located between the evaporator and the passive condenser and between the evaporator and the heat exchanger. The primary cooling medium circulates between the evaporator and the passive condenser and between the evaporator and the heat exchanger by natural circulation and gravity without the need to provide a pump in the flow path of the primary cooling medium between the heat exchanger and the evaporator and between the passive condenser and the evaporator to circulate the primary cooling medium.

A modular power processing system for renewable energy applications includes rack-supported power processing modules with power conversion circuitry for AC / DC and / or DC / DC conversion. Each module can include top and bottom connectors that self-align and engage to establish electrical communication, with optional locking mechanisms to prevent disconnection. Connector covers can be included to protect exposed connectors. The system can include an endpoint module for external electrical connections and supports both active and passive cooling elements. Electrical communication between modules can transmit power and data. Modules are designed for tool-less addition or removal, enabling rapid installation and expansion. The system can be used for outdoor use and is scalable, whereby multiple power processing system are connected to each other.

A post for mounting electronic equipment includes: a base configured to hold computing equipment; a mount configured to hold the electronic equipment; a tube mast comprising a first portion configured to connect with the base and a second portion configured to connect with the mount, wherein the tube mast is configured to receive wiring that passes through the tube mast from the computing equipment to the electronic equipment; and a cabinet configured to enclose the base and the computing equipment to protect the computing equipment from exposure to weather. The first portion of the tube mast can include one or more hinges that allow the tube mast to fold relative to the base. The base can include at least one through hole, and the second portion of the tube mast can include at least one ventilation hole, to provide passive cooling of the computing equipment.

The invention relates to the technical field of photovoltaic, in particular to an energy-saving building assembly type roof photovoltaic power generation system which comprises a base, the top of the base is fixedly connected with an installation box, and the interior of the installation box is fixedly connected with a porous permeable plate and a hollowed-out partition plate in parallel. The interior of the mounting box is divided into an air guide area, a guide area and a heat storage area by the porous permeable plate and the hollow partition plate; the air guide mechanism is arranged in the air guide area; the guide mechanism comprises a perforated plate fixedly connected to the upper end face of the guide area, and the perforated plate is divided into a porous area and a non-porous area. Natural wind is absorbed through energy of the natural wind through the wind guide mechanism, cooling is completed through cooperation with the guide mechanism, cooling of the solar panel during working in the daytime is achieved, passive cooling can be achieved through clean energy without additional energy consumption, the low-carbon requirement of an energy-saving building is met, the working temperature of the solar panel can be effectively reduced, and the energy-saving effect is achieved. And photoelectric conversion efficiency attenuation caused by high temperature is avoided.

The presented invention relates to a conditioning process (100) for conditioning an electrochemical cell system (203). The conditioning process (100) comprises the following process steps: - Arranging (103) the electrochemical cell system (203) on a test bench (200), - Connecting (105) a temperature control circuit (209) of the electrochemical cell system (203) to a temperature control circuit (205) of the test bench (200), - Starting up (107) the electrochemical cell system (203), - Operating (109) the electrochemical cell system (203) for a specified duration at at least one specified operating point on the test bench (200), - Shutdown with active cooling (111) of the electrochemical cell system (203), - Separation (112) of the temperature control circuit (209) of the electrochemical cell system (203) from the temperature control circuit (205) of the test bench (200), - Shutdown with passive cooling (113) of the electrochemical cell system (203), - Dismantling (115) the electrochemical cell system (203) from the test stand (200), during passive cooling of the electrochemical cell system (203) the temperature control medium of the temperature control circuit (205) of the test bench (200) is heated.

An integrated system for solar tracking and DC / DC conversion can include a housing with heat sink fins, a DC power supply configured to receive DC power from one or more solar panels and supply DC power to internal components, and a self-powered controller electrically connected to the DC power supply. The self-powered controller outputs control signals to one or more motors to orient the solar panels. The system further includes a plurality of configurable power blocks that are selectively operable as DC / DC converters to perform maximum power point tracking or as DC / AC converters. A battery module is detachably couplable to the housing by a connector and is electrically connected to the DC power supply to provide backup power. The housing can be formed of a heat-conducting material to enable passive cooling. The battery module can include a seal to prevent ingress of debris and fluids.

This invention discloses a method for preparing and applying a passive cooling material based on lignin-free wood, and its application in promoting the collection of condensate water in a solar-driven interfacial evaporation system. This method, for the first time, combines a PVDF film with lignin-free wood material. Water is drawn upwards through the capillary action of the tubular cellulose structure in the lignin-free wood substrate, and the water evaporates under sunlight, carrying away heat and achieving evaporative cooling. Simultaneously, the high solar reflectivity (89.338%) and high-mid-infrared emissivity (95.783%) of the PVDF film surface provide excellent radiative cooling. Furthermore, the unique low surface energy rough structure of the PVDF film endows it with hydrophobic self-cleaning properties, protecting the surface of the cooling material from contamination, maintaining a stable cooling effect, and enabling long-term application.

The invention relates to the technical field of explosion-proof cabinets, in particular to a data exchange device with an explosion-proof function, which comprises an explosion-proof cabinet, a data switch is arranged in the explosion-proof cabinet, an auxiliary adjusting device is arranged at the lower end of the explosion-proof cabinet, a circulating pump is further arranged outside the explosion-proof cabinet, and the circulating pump is connected with the auxiliary adjusting device. A temperature sensor is arranged in the explosion-proof cabinet, a data switch generates heat during operation, an adjusting plate is pushed under the action of heated easily-expanded liquid in a driving cylinder, then the overlap ratio of an open hole and a through hole is increased, the flow of cooling water in a circulating pipe is increased, the cooling effect is enhanced, and along with continuous rising of the temperature, the cooling effect is improved. Due to the fact that the resistance of the damping cylinder and passive cooling cannot meet the requirements, active cooling adjustment of the equipment starts to intervene, that is, the electric push rod is correspondingly controlled to be started through detection of the temperature sensor, the overlap ratio of the open hole and the through hole continues to be increased, and the cooling effect is enhanced.