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111results about How to "Precise cooling" patented technology

Control method and system of server heat dissipating controller

The invention provides a control method and system of a server heat dissipating controller. The heat dissipating controller comprises a control chip, a temperature sensor and a fan controller; the temperature sensor is connected with the input end of the control chip, and the fan controller and the control chip build communication connection through an independent link; and the control chip is connected with a BMC through an I2C. The method includes the steps that heat dissipation strategy data of updating of the BMC are acquired; server temperature measuring point temperature acquired by thetemperature sensor is acquired; according to the temperature and heat dissipating strategy data, a target rotating speed of fans is generated; and a current rotating speed of a fan corresponding to the temperature sensor is acquired, a rotating speed adjusting and control signal is generated according to the current rotating speed and the target rotating speed, and the rotating speed of the fans is adjusted and controlled. According to the control method and system of the server heat dissipating controller, heat dissipating control of a server is stripped away from the BMC, resources of the heat dissipating controller are sufficiently and effectively utilized, it is achieved the heat dissipating controller independently performs independent control over the various fans, and heat dissipating is accurately controlled.
Owner:SUZHOU LANGCHAO INTELLIGENT TECH CO LTD

Heat dissipation device of mobile cabinet level server system and thermal management method of heat dissipation device

The invention relates to a heat dissipation device of a mobile cabinet level server system. The heat dissipation device comprises a plurality of water-cooling hot pipe heat dissipation modules, a pipeline system, a rear door heat dissipation device and a control system, wherein the plurality of water-cooling hot pipe heat dissipation modules are arranged in a mobile cabinet, each electronic equipment needed to be cooled in the mobile cabinet is corresponding to one of the water-cooling hot pipe heat dissipation modules, accurate heat dissipation of a heating part can be achieved, and the heat dissipation efficiency is substantially improved; compared liquid cooling with traditional air cooling, a medium of liquid cooling is relatively large in specific heat capacity, more heat can be taken away, meanwhile, the heat dissipation device is relatively quite during running, and noise can be reduced very well; a hot pipe is good hot conductor, is high in safety coefficient and low in cost and is widely used in the field of heat dissipation, the problem of heat dissipation of a high-flux density component in the field of heat dissipation can be solved very well by combining water cooling and the hot pipe, and the reliability of the component is improved; compared with air cooling, the noise of the hot pipe can be reduced; and a liquid cooling system is low in power during normal working, and more energy is saved.
Owner:SOUTH CHINA UNIV OF TECH +1

Projector and method and system for controlling rotation speed of fan in projector

The invention is applicable to the technical field of projectors, and provides a projector and a method and system for controlling the rotation speed of a fan in the projector. The method comprises the following steps of: driving the fan to rotate according to a pre-set fan initial voltage; detecting and calculating a current rotation speed of the fan; judging the size relationship between an absolute value of the difference of the current rotation speed and a target rotation speed and a tolerance value; if judging that the absolute value is not more than the tolerance value, representing that the deviation between the current rotation speed and the target rotation speed of the fan is within a tolerance allowance range so as not to modulate the rotation speed of the fan; returning to the step of detecting and calculating the current rotation speed of the fan; if judging that the absolute value is more than the tolerance value, calculating a modulation width of the fan according to the current rotation speed and the target rotation speed; calculating current driving voltage of the fan according to the modulation width; and driving the fan to rotate according to the calculated current driving voltage of the fan. According to the method and the system disclosed by the invention, the rotation speed of the fan can be effectively controlled so as to effectively dissipate heat of an LED (Light Emitting Diode) solid state light source precisely and rapidly.
Owner:SHENZHEN ACTO DIGITAL VIDEO TECH

Automatic cooling control system for machine tool

InactiveCN106475851ASmooth rate of changeExtended Flow TrajectoryMaintainance and safety accessoriesControl systemRefrigeration
The invention discloses an automatic cooling control system for a machine tool. The automatic cooling control system comprises a worktable, a circulating pipeline, a refrigeration device, a liquid storing tank, a cooling tank, a coolant spray head and a controller, a first throttling valve, a second throttling valve and a third throttling valve are separately arranged on a first pipeline, a second pipeline and a third pipeline; a flow pump and a flowmeter are arranged on a fourth pipeline; the flowmeter is positioned between the flow pump and the coolant spray head; a first temperature detector is arranged at the coolant spray head; a first cooling mode, a second cooling mode and a third cooling mode are preset for the controller; the controller acquires a first temperature detection value T1 through a first temperature sensor and acquires flow speed information V through the flowmeter; the controller controls the flow pump to adjust the flow speed according to the flow speed information V; an ideal temperature interval [t1,t2] is preset for the controller; if T1 is greater than or equal to the t1 and smaller than or equal to the t2, the controller adopts the second cooling mode; if the lt is greater than or equal to the T1 and smaller than or equal to the t1, the controller adopts the first cooling mode; and if gt is greater than or equal to the T1 and smaller than or equal to the t2, the controller adopts the third cooling mode.
Owner:张武昌

Air supply method and control device for inter-column air conditioning system

The invention provides an air supply method and a control device for an inter-column air conditioning system. The air supply method comprises a sampling step and an operating step; in the sampling step, a master controller acquires a first temperature value, a second temperature value, a third temperature value and a fourth temperature value which are detected by four temperature sensors; in the operating step, the master controller judges whether the absolute value of a first temperature difference value between the first temperature value and the second temperature value is greater than a first preset threshold value, if so, the master controller controls a first fan group to turn to the first temperature sensor side or the second temperature sensor side with a higher temperature value according to a first preset angle; the master controller judges whether the absolute value of the second temperature difference value between the third temperature value and the fourth temperature value is greater than a second preset threshold value, if so, the master controller controls a second fan group to turn to the third temperature sensor side or the fourth temperature sensor side with a higher temperature value according to a second preset angle. The invention also discloses the control device for the inter-column air conditioning system. The air supply method and the control device for the inter-column air conditioning system have the advantages that the air supply direction can be regulated according to space temperature, and a server can be cooled quickly and accurately.
Owner:铨高科技(珠海)股份有限公司

Temperature-controllable reaction kettle

The invention discloses a temperature-controllable reaction kettle. The reaction kettle comprises a support frame with a buffering effect, a kettle body arranged on the support frame, a stirring device arranged on a center line of the kettle body, a feeding opening formed in the upper part of the kettle body, a discharging opening formed in the lower part of the kettle body, a first spiral oil bath pipe and a second spiral oil bath pipe, wherein the kettle body comprises an outer-layer kettle body and an inner-layer kettle body; a cooling water tank is formed between the outer-layer kettle body and the inner-layer kettle body; a temperature sensor is arranged in the inner-layer kettle body. According to the temperature-controllable reaction kettle, oil bath flowing directions of the firstspiral oil bath pipe and the second spiral oil bath pipe are opposite, so that reactants in the reaction kettle can be uniformly heated; through adoption of the cooling water tank, the first spiral oil bath pipe and the second spiral oil bath pipe can be used for heating, the reactants can be heated and can also be used for cooling the mixture in the reaction process also can be cooled; the dual accurate temperature control of the inside and the outside of polymerization reaction is achieved.
Owner:CHENGDU KECHUANGCHENG TECH

Multifunctional computer heat dissipation rack

The invention relates to a computer device, and more specifically relates to a multifunctional computer heat dissipation rack. The multifunctional computer heat dissipation rack comprises a heat dissipation mechanism, a heat dissipation angle adjusting mechanism, a heat dissipation net plate, a lifting mechanism and a fixing and clamping mechanism. The multifunctional computer heat dissipation rack can provide heat dissipation for a computer, can adjust the heat dissipation angle, and can adjust different heights according to different placement positions to keep the ventilation effect, so as to improve the heat dissipation effect. The multifunctional computer heat dissipation rack can fix and clamp the position of a computer case or a notebook computer so as to enable the multifunctional computer heat dissipation rack to accurately cool the position, needing cooling, of the computer and improve the cooling effect. The heat dissipation mechanism is connected with the heat dissipation angle adjusting mechanism, and the top end of the heat dissipation mechanism is connected with the heat dissipation net plate, and the bottom end of the heat dissipation mechanism is connected with the top end of the lifting mechanism, and the two ends of the heat dissipation mechanism are connected with the bottom end of the fixing and clamping mechanism.
Owner:XINXIANG UNIV

Intelligent fire-fighting robot control method based on three-dimensional point cloud model

The invention discloses an intelligent fire-fighting robot control method based on a three-dimensional point cloud model. The intelligent fire-fighting robot control method comprises the following steps that a mapping relation between a robot coordinate system and the three-dimensional point cloud model is built, the coordinates of an abnormal temperature rise point are extracted from a picture captured by an infrared camera, the expected pose of the tail end of a robot is determined, a tail end expected homogeneous transformation matrix is built, then a Pieper method is used for solving the joint angles of all shafts of the robot, a nearest solution is selected as an optimal solution, the robot is controlled to move to an expected position, a high-pressure water mist spray gun valve is opened for cooling until the temperature is reduced to be below an alarm threshold value, cooling is ended, and the robot is reset. According to the method, the rotation translation matrix and three-axis intersecting Pieper method is used, by means of the on-site three-dimensional point cloud model, accurate positioning of the six-axis fire-fighting robot on an abnormal temperature rise point of a fire scene can be achieved, and threats and losses brought to personal safety of workers and a power system due to abnormal temperature rise of a transformer or even fire explosion can be avoided.
Owner:STATE GRID JIANGXI ELECTRIC POWER CO LTD RES INST +2

Heat dissipation device

The invention discloses a heat dissipation device, and belongs to the field of electronics. The heat dissipation device comprises a shell, a heat conduction module and a heat dissipation module; the shell is connected with electronic equipment; the heat conduction module is connected with the shell and located on the side, close to the electronic equipment, of the shell; the heat dissipation module is connected with the shell and located on the side, away from the electronic equipment, of the shell; the shell and the electronic equipment are matched to form a heat conduction channel; the heatconduction module is located in the heat conduction channel; the heat dissipation module is communicated with the heat conduction channel; the heat conduction module comprises a plurality of flexibleheat conduction units, each flexible heat conduction unit comprises a base, a flexible heat conduction piece and an elastic piece; the bases are detachably connected with the shell; the flexible heatconduction pieces abut against the electronic equipment; the first ends of the elastic pieces are connected with the bases; and the second ends of the elastic pieces are connected with the flexible heat conduction pieces. The heat dissipation device provided by the embodiments of the invention has the advantage of making the heat dissipation of the electronic equipment quicker and more accurate.
Owner:VIVO MOBILE COMM CO LTD

Ultralow-temperature vacuum sealing structure and full-ceramic rolling bearing performance testing device

ActiveCN111896258AImplement Motion LoadingMeasure and control ambient temperatureMachine part testingRolling-element bearingElectric machinery
The invention discloses an ultralow-temperature vacuum sealing structure and a full-ceramic rolling bearing performance testing device, and belongs to the technical field of bearing testing devices. The ultralow-temperature vacuum sealing structure comprises a fixed support, a main shaft mechanism, an ultralow-temperature vacuum sealing chamber and a stress application assembly. The main shaft mechanism comprises a sample main shaft and a driving main shaft; the ultralow-temperature vacuum sealing chamber comprises a vacuum sealing cavity and an axial loading plug, and the sample main shaft isarranged in the vacuum sealing cavity; and the full-ceramic rolling bearing performance testing device comprises an ultralow-temperature vacuum sealing structure, a two-stage vacuum system, a self-pressurization liquid nitrogen tank, a signal acquisition system, a heating pipe, a motor, a controller and an upper computer. The ultralow-temperature vacuum sealing structure and the all-ceramic rolling bearing performance testing device can realize dynamic testing of the friction performance and the vibration performance of the all-ceramic rolling bearing in an ultralow-temperature vacuum environment and under the conditions of different temperatures, vacuum degrees, loads and rotating speeds, and are convenient to operate and high in accuracy.
Owner:SHENYANG JIANZHU UNIVERSITY

Automobile wheel hub heat dissipation method, device for realizing method and automobile

The invention provides an automobile wheel hub heat dissipation method, a device for realizing the method and an automobile. The automobile wheel hub heat dissipation method comprises the following steps that current driving state signals of the automobile are obtained; the driving state signals comprise normal driving state signals and brake state signals; the running state of wheel spokes of a wheel hub is controlled according to the current driving state signals; if the driving state signals are the normal driving state signals, the multiple wheel spokes of the wheel hub are controlled to be located at a predetermined first position; and if the driving state signals are the brake state signals, the multiple wheel spokes of the wheel hub are controlled to perform deflection from a current position to a predetermined second position. The device is used for realizing the method, and the automobile comprises the device. By means of the automobile wheel hub heat dissipation method, the device and the automobile, the technical problem that an existing wheel hub motor cooling method cannot take both improving of the wheel hub motor cooling effect in the automobile braking process and improving of the aerodynamic performance in the automobile normal driving process into account is solved.
Owner:GUANGZHOU AUTOMOBILE GROUP CO LTD

Solid-state immersed liquid cooling server and solid-state immersed liquid cooling service system

The invention discloses a solid immersed liquid cooling server and a liquid cooling service system. The solid-state immersed liquid cooling server comprises a mainboard, a power supply and a pluralityof solid-state components arranged at intervals, wherein the mainboard is provided with a CPU and a plurality of expandable card slots which are arranged at intervals. The power supply, the solid-state component, the CPU and the extensible card slot are respectively provided with a detachable heat exchange sheet assembly. The solid immersed liquid cooling service system employs the solid immersedliquid cooling server; the system comprises a cabinet and a plurality of solid immersed liquid cooling servers arranged in the cabinet in parallel, wherein a cabinet cooling liquid distributor and acabinet cooling liquid collector are respectively arranged on the cabinet; the server cooling liquid distributor is connected with the cabinet cooling liquid distributor, the server cooling liquid collector is connected with the cabinet cooling liquid collector, and the solid-state immersed liquid cooling server and the solid-state immersed liquid cooling service system solve the problems that anexisting server is low in heat dissipation efficiency and large in noise and has component corrosion risks.
Owner:捷通智慧科技股份有限公司

Device for testing frost-heaving ratio of soil body around tunnel

ActiveCN113405937AAchieving reasonable testingPrecise Frost Heave Deformation RateWeather/light/corrosion resistanceStrength propertiesSoil scienceControl system
The invention discloses a device for testing the frost-heaving ratio of soil around a tunnel and belongs to the field of geotechnical engineering. The fixing device is arranged in a sample mounting and testing system and is used for the testing system, a liquid supplementing device is used for supplementing water for a rock-soil body testing base body of the sample mounting and testing system and supplementing oil for the middle space of an inner ring of the rock-soil body testing base body, and a refrigerating system for rapidly refrigerating the sample mounting and testing system is arranged in the sample mounting and testing system. A volume pressure control system is communicated with the liquid supplementing device to perform pressure control on the sample mounting and testing system and measure the volume of liquid discharged from the middle part of the rock-soil body testing matrix after frost heaving, and a data acquisition device is connected with the sample mounting and testing system and the volume pressure control system and is used for acquiring data. By arranging the reasonable thermal control device, the frost heaving deformation index of the soil body around the circular tunnel is reasonably tested, and the defect of the frost heaving rate tested by the current one-dimensional frost heave test in the anti-frost heaving design of tunnel engineering is overcome.
Owner:SOUTHWEST JIAOTONG UNIV

Low-voltage reactive compensation power distribution cabinet

The invention discloses a low-voltage reactive compensation power distribution cabinet. The low-voltage reactive compensation power distribution cabinet is characterized in that a semiconductor refrigerator, a fan, a plurality of temperature sensors and a plurality of first heat dissipation fans are all electrically connected with a main controller; the semiconductor refrigerator is started through the main controller, and refrigeration of a cold storage liquid in a cold storage pool is completed; the fans are started, external air is conveyed into a heat exchange pipe, and sufficient heat exchange with the cold storage liquid in the cold storage pool is achieved through the snake-shaped heat exchange pipe, so gas in the heat exchange pipe is cooled; the temperature of the interior of a power distribution area and the temperature of the interior of each function cabinet are detected in real time through the temperature sensors, and when the temperature of a certain area is high, the corresponding heat dissipation fan is started through the main controller, so cold air in the heat exchange pipe is conveyed into the corresponding area through a main heat dissipation pipe and a communicating pipe; and thus, accurate cooling is achieved, cooling effect is improved, and device damage is avoided.
Owner:江苏银泰电气科技有限公司

Parturition house which meets different environmental demands of sows and piglets and realizes accurate ventilation

ActiveCN109362575APrecise coolingAvoid cold stressAnimal housingEvaporationEngineering
The invention discloses a parturition house which meets different environmental demands of sows and piglets and realizes accurate ventilation. The parturition house comprises a parturition house body,a ventilation system, a head cooling system and a neck cooling system; the parturition house body is internally provided with a ventilation chamber and underground air ducts, wherein the ventilationchamber is formed in the end part of the parturition house body and provided with an air inlet, a wet curtain is arranged at the air inlet to form a primary cooling device of the parturition house, and the underground air ducts are formed below each passage and communicated with the ventilation chamber and form a secondary cooling device of the parturition house; fans are arranged on the roof, andbranch pipes of the underground air ducts are gradually increased from the front side to the rear side in the house body for obstetric tables and directly face the heads of the sows; meanwhile, watercooling is adopted for the necks of the sows. Through comprehensive utilization of evaporation, ground source heat, convection and the conduction heat exchange principle, accurate temperature reduction for the sows in summer is achieved, and cold stress of the piglets is avoided by utilizing the underground air ducts for preheating air entering the house and keeping the temperature of the air constant in winter.
Owner:ZHEJIANG UNIV

Device and method capable of regulating bagged food fresh-keeping storage

The invention discloses a device and method capable of regulating bagged food fresh-keeping storage, and belongs to the field of food fresh-keeping storage. The device comprises an intelligent monitoring system, a ventilation system and an air purification and temperature regulation device, wherein the intelligent monitoring system is connected with the ventilation system and the air purificationand temperature regulation device separately. The device and method capable of regulating the bagged food fresh-keeping storage has the advantages that sensors in the intelligent monitoring system accurately monitor changes of all portions, when a certain bagged grain is mildewed, the temperature, humidity, carbon dioxide concentration and the like change abnormally, according to the number of thesensors, the location of the mildewed grain can be accurately found, dry low-temperature air mixed with ozone can be introduced into a position mouse cage tube provided by the monitoring system through a pipeline to perform accurate cooling, drying and sterilization, thereby solving the problems that the grain condition changes cannot be found timely in a bagged food fresh-keeping warehouse and response cannot be carried out accurately in time after the grain condition changes are found.
Owner:GUANGDONG PROVINCE MODERN AGRI EQUIP RES INST +1

Battery module structure based on variable grid and control method thereof

The invention discloses a battery module structure based on a variable grid and a control method thereof. The battery module structure comprises a battery box body, a battery cell, an upper layer of air inlet grid, a middle layer of air inlet grid, a lower layer of air inlet grid, a grid control wire harness, an air outlet, a temperature sensor, a temperature sensor signal wire harness, a vehiclespeed sensor, a vehicle speed sensor signal wire harness, a battery controller, an LIN communication module, a grid opening and closing controller, a grid opening and closing controller wire harness,a grid opening controller, a grid opening controller wire harness, a fan, a fan control wire harness and a brake execution module. The square battery cell is placed in the battery box body and is connected with the battery controlled through the temperature sensor signal wire harness; the battery controller performs comprehensive determination according to signals transmitted by the temperature sensor and the vehicle speed sensor and controls the opening and closing of the fan and the air inlet grid; and the brake execution module stops driving the motor according to the signal of the batterycontroller to finish emergency brake of the vehicle, so that efficient heat dissipation of the power battery is achieved, and the safety of the electric vehicle is guaranteed.
Owner:JIANGSU UNIV

Full-automatic spraying and drying integrated wire drawing machine

The invention discloses a wire drawing machine and provides a full-automatic spraying and drying integrated wire drawing machine. The key point of the technical scheme is as follows: the full-automatic spraying and drying integrated wire drawing machine comprises a base. A pay-off mechanism, a wire drawing mechanism and a take-up mechanism are successively arranged on the base; a spraying and cooling mechanism and a drying and dehumidifying mechanism are arranged between the wire drawing mechanism and the take-up mechanism; the spraying and cooling mechanism comprises a water storage tank located on the base, a water pump located above the water storage tank, a liquid guide pipe connected to a water outlet of the water pump and a plurality of downward spray heads located on the surface ofthe liquid guide pipe; the drying and dehumidifying mechanism comprises a working chamber and a heating and drying assembly located in the working chamber; the heating and drying assembly comprises acompressor embedded onto the surface of the working chamber, a condenser connected to the compressor through a guide pipe and an evaporator connected to the condenser through a guide pipe; and a control electromagnetic valve is also arranged between the compressor and the condenser, and an industrial blower facing the heating and drying assembly is also arranged in the working chamber.
Owner:WUXI PINGSHENG SCI & TECH
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