2885 results about "Cooling efficiency" patented technology

The invention belongs to the technical field of crossing of intelligent manufacturing and thermal control systems, particularly relates to an intelligent cooling control system for a bionic micro-channel mold, and aims to solve the problems of low mold cooling efficiency, non-uniform temperature distribution, high energy consumption and the like. The system comprises a bionic microchannel mold body, a distributed temperature sensing network, a multi-area independent flow regulation and control module, a cooling medium dynamic supply unit and a central intelligent decision controller. Through cooperation of a bionic fractal micro-channel structure, partition flow regulation and control and an intelligent algorithm, fine regulation and control of a temperature field are achieved, the cooling efficiency is improved, energy consumption is reduced, and the self-adaptive optimization and fault redundancy capacity is achieved.

The invention relates to the technical field of vapor-liquid two-phase cooling, and discloses a vapor-liquid two-phase cooling method and system based on phase change immersion. The method comprises the following steps: acquiring a multi-modal monitoring data set of a target cooling system; performing spatial gradient feature extraction, transient response analysis and motion mode analysis processing on the data to obtain a temperature field feature matrix, a thermal load fluctuation vector and a bubble dynamics feature sequence; performing multi-physical field coupling processing on the features to generate a fusion cooling state feature set; a pre-configured multi-phase flow simulation model is called to carry out cooling efficiency evaluation, and a cooling efficiency index set containing the correlation mapping relation between the working medium flow characteristics and the heat exchange efficiency is generated; performing collaborative anomaly traceability processing based on the mapping relationship, and generating a phase change anomaly traceability report for identifying an abnormal boiling region and a working medium flow defect mode; and generating a cooling parameter self-adaptive control strategy according to the traceability report, and sending the cooling parameter self-adaptive control strategy to a cooling control system to execute real-time parameter adjustment.

The invention relates to the technical field of electric vehicle thermal management, discloses an electric vehicle motor and driver integrated intelligent cooling system and a control method, and aims at solving the problems that an existing motor driver thermal management system is low in cooling efficiency, high in energy consumption, complex and insufficient in space utilization rate. The method comprises the following steps: acquiring operation, thermal state and environment data; constructing a collaborative thermal model and predicting a thermal load; generating an optimal cooling strategy based on the predicted value and the target; the cooling liquid pump, the three-way valve and the cooling fan are adjusted, and cooling resources are dynamically distributed to achieve collaborative cooling. The system comprises a data acquisition module, a collaborative thermal model construction prediction module, an intelligent decision control module and an integrated cooling circulation execution module. By the adoption of the technical scheme, the cooling performance can be effectively improved, system energy consumption and complexity are reduced, space layout is optimized, the service life of parts is prolonged, and the reliability, the power performance and the endurance of the whole vehicle are improved.

The invention discloses a pure electric vehicle heat pump type whole vehicle thermal management system and method, and relates to the technical field of new energy vehicle thermal management, and the method comprises the following steps: constructing a combined twin system of thermal fluid, structural vibration and acoustic fluctuation, collecting pressure waves and vibration phases by using an array sensor, forming a steady state baseline spectrum and a transient state baseline spectrum, and calculating the temperature of the steady state baseline spectrum and the transient state baseline spectrum; and a unified reference is established. According to the method, a combined twinborn system of thermal fluid, structural vibration and acoustic fluctuation is constructed, the dynamic characteristics of pulsating waves are accurately monitored, and instability early warning is carried out by using a phase locking tracking method. Through pipeline topology reconstruction and segmented damping link design, a self-adaptive pulsation buffer zone is introduced, and pulsation energy is effectively absorbed. And in combination with a multi-target control law and a time reflection mirror cooperative regulation strategy, refrigerant flow is accurately controlled, pulsation energy is actively counteracted, and stable operation of the system is guaranteed. Through the innovative design, the stability of a heat management loop is improved, the fault risk caused by pulsation is reduced, and the cooling efficiency and safety are improved.

The invention provides a cooling device for semiconductor manufacturing, which is characterized in that a choke plate divides a cooling cavity into a first cavity and a second cavity, and the first cavity and the second cavity are respectively communicated with an air inlet and an air outlet; the return assembly is arranged on the shell and connected with the choke plate, and the return assembly is used for providing reset driving force for the choke plate in the first direction; an air flow channel for air circulation is formed between the choke plate and the liquid level of cooling liquid in the cooling cavity, the first cavity and the second cavity are communicated through the air flow channel, and when the air inlet pressure of the air inlet is increased, air flow pushes the choke plate to move towards one side of the second cavity so as to increase the size of the first cavity; and when the air inlet pressure is reduced, the return assembly drives the choke plate to reset towards one side of the first cavity. According to the cooling device for semiconductor manufacturing, the problems that in the prior art, due to fluctuation of the liquid level of cooling liquid, the cooling efficiency is reduced, and the gas-liquid separation effect is poor are solved.

The utility model discloses a vacuum cooling temporary storage mechanism and thin film deposition equipment, and relates to the technical field of semiconductor equipment. The vacuum cooling temporary storage mechanism comprises a temporary storage bin, a sealing gate valve, a storage box, a vacuumizing assembly and a cooling module. The vacuumizing assembly is connected with the temporary storage bin, the storage box is arranged in the temporary storage bin, the temporary storage bin is provided with a conveying opening, the sealing gate valve is used for closing or opening the conveying opening, the cooling module is connected with the temporary storage bin, and the cooling module is used for cooling the temporary storage bin. Compared with the prior art, the vacuum cooling temporary storage mechanism provided by the utility model adopts the vacuumizing assembly connected with the temporary storage bin and the sealing gate valve mounted in the temporary storage bin, so that the cleanliness of the temporary storage bin can be ensured, the temporary storage bin is prevented from being influenced by the transmission bin, gas in the temporary storage bin can be directly pumped out, and the service life of the temporary storage bin is prolonged. And heat emitted by the wafer is rapidly taken away, and the cooling efficiency is high.

The invention provides a high-temperature liquid cooling cabinet control system and method based on intelligent energy efficiency optimization, and relates to the technical field of intelligent adjustment control. And meanwhile, constructing a digital twin containing a heat flow coupling simulation model and multi-target dynamic optimization to process real-time operation data of the liquid-cooled cabinet acquired in real time, deducing a heat dissipation result, an energy consumption result and a heat recovery result of the liquid-cooled cabinet, and performing multi-target dynamic optimization by taking the deducing result as a basis. Simulation solution is carried out by taking the purposes of ensuring the safety of a computing chip, reducing the energy consumption and stabilizing the waste heat quality as targets, an optimal control instruction set is obtained, a global dynamic balance point is actively generated in each control period, and low-energy-consumption and stable high-temperature heat output are achieved while the optimal heat dissipation cooling efficiency is ensured. Multi-target maximization cooperation is achieved, the energy utilization rate and the cooling efficiency are improved, waste is avoided, and the cost is reduced.

The invention discloses a magnetron sputtering device for coating and a using method thereof.The magnetron sputtering device for coating comprises a sputtering chamber, a heating assembly and a cooling assembly, the sputtering chamber is used for coating a substrate, the magnetron sputtering device further comprises a bearing module and a conveying module, the bearing module is arranged in the sputtering chamber, and the conveying module is used for conveying the substrate to the substrate; the carrying module is used for carrying a substrate to be coated, and the conveying module is used for selectively driving one of the heating assembly and the cooling assembly to be far away from the carrying module and the other one of the heating assembly and the cooling assembly to be close to the carrying module so as to heat or cool the substrate. The conveying module drives the heating assembly and the cooling assembly to be matched with the bearing module, so that the temperature of the substrate can be adjusted and controlled in a limited space, the influence between the heating assembly and the cooling assembly can be effectively reduced, and the heating and cooling efficiency is guaranteed.

The invention belongs to the technical field of milling, and particularly relates to a high-precision numerical control milling device which comprises a main body framework, a main shaft and a chuck, and further comprises a mounting shell fixedly mounted on the main body framework, the liquid spray head is mounted on the mounting shell; the injection detection assembly is mounted on the mounting shell and comprises a circular plate mounted on the mounting shell; the gas nozzle is mounted on the circular plate, a detection structure is arranged on the gas nozzle, and the detection structure comprises a pressure sensor; according to the invention, the tasks of detection and energy conservation are completed by using gas, and the cooling liquid is focused on the work of cooling and lubrication, so that the two defects of low cooling efficiency and resource waste in the prior art are overcome, and the multiple beneficial effects of prolonging the service life of the cutter and reducing the comprehensive cost are finally realized.

The invention discloses efficient heat dissipation cooling equipment adaptive to a new energy automobile power battery. The efficient heat dissipation cooling equipment comprises a battery frame; the liquid cooling plate is fixedly mounted at the bottom of the battery frame; the second cooling system comprises a refrigerant supply pipe, a refrigerant recovery pipe and a side cooling plate, and the refrigerant supply pipe is fixedly mounted on the side wall of the battery frame; a main pipe inlet of the three-way proportional regulating valve A is connected with the cooling liquid supply main pipe, a branch pipe outlet of the three-way proportional regulating valve A is connected with the first connector pipe, and another branch pipe outlet of the three-way proportional regulating valve A is connected with the second refrigerant inlet; a main pipe inlet of the three-way proportional regulating valve B is connected with the cooling liquid return main pipe, a branch pipe outlet of the three-way proportional regulating valve A is connected with the second connector pipe, and another branch pipe outlet of the three-way proportional regulating valve A is connected with the second refrigerant outlet. Compared with the prior art, the invention solves the problem of low heat dissipation and cooling efficiency of the existing new energy automobile power battery which only controls the temperature through the lower side liquid cooling plate.

The utility model discloses a mould with a sliding block structure, which belongs to the technical field of injection moulds and comprises a fixed mould, a bottom plate, a movable mould, a plurality of sliding components and a cooling component, the movable mould is connected to the left side of the fixed mould in a sliding manner, the bottom plate is arranged on the lower side of the fixed mould, the sliding components are mounted in the movable mould, and the cooling component is arranged on the bottom plate. The cooling assembly is installed on the lower side of the movable mold, the sliding assembly comprises fixed blocks, side edge blocks, sliding blocks and a connecting plate, the multiple fixed blocks are fixedly installed in the movable mold, the multiple side edge blocks are fixedly installed in the movable mold, arc-shaped grooves are formed in the side walls of the fixed blocks and the side edge blocks, the grooves are used for containing lubricating agents, and the sliding blocks are connected with the connecting plate. And the sliding block is connected between the fixed block and the side block in a sliding manner. By means of the mode, cooling liquid can be automatically injected and discharged along with a mold, the cooling efficiency during injection molding is improved, and abrasion of the sliding block is reduced by arranging the arc-shaped groove structure.

The embodiment of the application provides a gravity self-balancing uniform water distribution system, which comprises first, second and third stage gravity self-balancing water distribution pipelines. Each second stage gravity self-balancing water distribution pipeline is connected to the first stage gravity self-balancing water distribution pipeline, and each third stage gravity self-balancing water distribution pipeline is connected to the second stage gravity self-balancing water distribution pipeline. The circulating water of the cooling tower is automatically depressurized after entering the first stage gravity self-balancing water distribution pipeline, and flows into each second stage gravity self-balancing water distribution pipeline on the basis of the self-weight of the water to realize double uniform water distribution. The water level height of each second stage gravity self-balancing water distribution pipeline is consistent, and the water inlet flows to the third stage gravity self-balancing water distribution pipeline again. The pressure at each water nozzle directly or indirectly connected to the third stage gravity self-balancing water distribution pipeline is consistent, and the water outlet of each water nozzle and the spraying area are substantially the same, so that uniform water distribution is realized, the water inlet is not affected by the water pressure, and the cooling efficiency of the cooling tower is significantly improved.

The stator support comprises a supporting body and an end plate, the supporting body is used for supporting a stator, the supporting body is provided with a first cooling flow channel, the end plate is connected to one end of the supporting body, a certain included angle is formed between the end plate and the supporting body, and the end plate is provided with a second cooling flow channel; the first cooling flow channel and the second cooling flow channel are suitable for circulating a cooling medium so as to exchange heat with the stator. According to the stator support, the cooling efficiency of the motor is improved, and the cooling effect is improved.

The invention discloses a liquid cooling case overload monitoring method based on an intelligent sensor. The method comprises the following steps: deploying a sensor network at a key node of a cooling flow channel of a liquid cooling case; all the sensors are connected with an edge computing gateway; the edge computing gateway synchronously collects data of the sensor and generates a time sequence data set; dynamically calculating the overall heat dissipation power P (t), the system flow resistance coefficient K (t) and a parameter eta (t) representing the cooling efficiency based on the time sequence data set; comparing the calculated value with a reference value, and performing overload risk assessment by applying a preset judgment logic; when the evaluation result exceeds a preset risk threshold value, triggering overload early warning, and generating a control instruction; and according to historical operation data of the system, carrying out periodic self-adaptive calibration on the reference value. By deploying the sensor network at the key node of the liquid cooling case and analyzing the collected data through the edge computing gateway, the response speed and the control precision of the system to the dynamic change of the heat source power are improved.

The invention discloses a low-pressure casting mold for a high-toughness light-weight water meter shell, relates to the technical field of low-pressure casting, and aims to solve the technical problem that the quality of a casting is affected by pressure maintaining failure caused by precoagulation at a pouring gate. The low-pressure casting mold comprises a first cooling runner formed in a first mold core, and a second cooling runner formed in a second mold core; a first sealing plate used for sealing is arranged in the first water through hole, a second sealing plate used for sealing is arranged in the second water through hole, the first water through hole and the second water through hole are communicated with the first cooling flow channel and the second cooling flow channel in a matched mode, and an auxiliary cooling assembly is arranged in the first mold core. The auxiliary cooling assembly comprises a water passing pipe communicating with the first cooling flow channel and heat conduction rods arranged on the outer walls of the two sides of the water passing pipe. The device has the advantages that the cooling medium is recycled, the pouring gate early solidification is delayed, the pressure maintaining effect is guaranteed, the auxiliary cooling assembly strengthens local cooling, the cooling efficiency and the cooling uniformity are improved, and the casting shrinkage porosity defect is reduced.

The application discloses a cooling liquid management method and device, a storage medium and an electronic device, relates to the technical field of immersion liquid cooling, and comprises the following steps: acquiring a current dielectric characteristic and a current spectral characteristic of cooling liquid, wherein the cooling liquid is used for immersing a server and absorbing and transferring heat of the server; calculating a current content of the cooling liquid according to the current dielectric characteristic and the current spectral characteristic, wherein the current content is used for indicating respective proportions of at least one cooling working medium included in the cooling liquid; and in the case that the current content satisfies a preset content threshold condition, adjusting the current content of the cooling liquid to be a target content. The technical problem that the immersion liquid cooling server in the related art has a low cooling efficiency is solved, and the technical effect that the cooling efficiency of the immersion liquid cooling server is improved is achieved.

The invention discloses an electrical transmission member, an electrical transmission assembly, an electrical connection assembly and an electrical connection device. The electrical transmission member includes: a pair of conductors; and an insulator, wherein the pair of conductors are wrapped in the insulator. A cooling passage allowing a cooling fluid to pass through is formed in the insulator, and the cooling passage is located between the pair of conductors so that the pair of conductors can be cooled by the cooling fluid flowing through the cooling passage. The cooling passage is large in cooling area and high in cooling efficiency, so that the pair of conductors can be fully cooled by the cooling fluid flowing through the cooling passage, and the temperature rise of the electric transmission piece can be effectively reduced under the condition that the sectional area of the conductors is not increased.

The gasoline engine generator fuel tank shell stamping die comprises a die body, a base, supporting columns, a hydraulic cylinder, a mistake-proofing structure and a waste collecting structure, the supporting columns are fixedly connected to the four corners of the bottom end of the base, a lower die is installed at the upper end of the base, a discharging port is formed in the middle of the interior of the lower die, and the hydraulic cylinder is fixedly connected with the lower die. A positioning pin is arranged on the upper surface of the lower mold, a heat conduction plate is arranged between the lower mold and the base, a refrigeration sheet is arranged at the bottom end of the heat conduction plate, the upper mold is arranged above the base, a cooling structure is arranged at the rear end of the lower mold, and the mistake-proof structure is arranged at the inner end of the lower mold. And the waste collecting structure is arranged at the bottom end of the base. By means of the structure, the problems that damageable parts of an existing stamping die are tedious to replace, waste is difficult to clean, and cooling efficiency is low can be solved, production efficiency is improved, the rejection rate is reduced, and the working environment is improved.

The invention discloses a liquid nitrogen cooling and laser heating collaborative auxiliary cutting device and a cutting method thereof. The device comprises a laser heating system, a liquid nitrogen cooling system, a cutting system, a tool temperature monitoring system and a control system. Laser emitted by the laser heating system is focused on a to-be-machined area of a workpiece in front of a cutting edge after transmitting through the cutter body; the liquid nitrogen cooling system accurately sprays liquid nitrogen to the cutting edge area of the tool through a heat insulation liquid supply pipeline and a nozzle which are integrated in the tool rest. The control system dynamically and synergistically adjusts the laser output power and the liquid nitrogen injection flow based on a temperature signal sent by a thermocouple embedded in the cutter. According to the device, parallelism of the two processes of laser heating of a workpiece and liquid nitrogen cooling of a tool is achieved in space, dynamic matching and accurate balance of laser heating and liquid nitrogen cooling are achieved in time, and the problems that in laser-assisted cutting, the tool is prone to thermal damage, the cooling efficiency is low, and a thermal field is out of control are effectively solved.

The hot-pressing die comprises a workbench, the top surface of the workbench is fixedly connected with a base table, a top frame is fixedly arranged over the workbench, and a pressing table is vertically arranged between the base table and the top frame in a sliding mode; in addition to the main hydraulic cylinder, pressure control of different areas is achieved through the multiple auxiliary pressing plates, in cooperation with the array pressure sensor in the lower die plate, in the whole hot pressing process, local pressure is finely adjusted, the overall surface pressure is uniform, and the hot pressing effect is improved; cooling is achieved through a first spraying head arranged in the lower die structure and a second spraying head arranged in the upper die structure, different from traditional flow channel type cooling, spraying impact is directly achieved on the back of the lower die plate and the back of the upper die plate, the extremely high local heat exchange coefficient is achieved through liquid flow impact, and the heat exchange efficiency is improved. And the jet liquid flow can carry away tiny bubbles generated by local high temperature, cooling failure caused by'air resistance 'is prevented, and the cooling efficiency is improved.

The utility model relates to a novel slotting structure for improving the air film cooling efficiency of a turbine blade. The structure comprises a wall surface, an air film hole and a transverse slot. The air film holes are formed in the upstream area of the wall face, the air film holes are in an air film hole shape with the inlet expanded and the outlet flow direction gradually shrunk and expanded in the spanwise direction, the inlet expansion angle is 5-15 degrees, the outlet flow direction gradually shrunk angle is 5-10 degrees, the outlet is in a rounded rectangle shape, and the length of the outlet ranges from 1.5 D to 2D. The transverse groove is formed in the outlet position of the air film hole, the structure is arranged to be in a double-step shape on the downstream groove wall, the step close to the groove bottom is called as the first step, the appearance structure is rectangular, the height of the first step is 0.5 D to 1D, the width of the first step in the main flow direction is 0.5 D to 1D, the bottom of the first step is perpendicular to the groove bottom, the step close to the wall surface is called as the second step, and the outer surface is an arc surface; the tangent line of the highest point coincides with the wall face, the tangent line of the lowest point is perpendicular to the first step surface, and the radius of the arc is 0.5 D-1D. The flow channel design and the step-shaped structure in the cooling structure can effectively improve the air film cooling efficiency.

This invention belongs to the field of laser cutting, specifically a laser cutting device for processing thin-walled hollow workpieces. It includes a cabinet with a water-filling clamping component and a central clamping component. A 5° angle exists between the thin-walled tube and the cabinet surface. The lowest point is at the end of the thin-walled tube closest to the water-filling clamping component, and a laser cutting component is located near the central clamping component. This method uses an inclined arrangement of the thin-walled tube and water injection from its end. Compared to the traditional method of placing the tube flat and inserting a thin water-filling tube, this solution provides more convenient and stable water injection. The elimination of the need for a main water pipe greatly simplifies control. Compared to traditional spray-type wet cutting, the cutting kerf comes into more comprehensive contact with the cooling water, resulting in higher cooling efficiency and more uniform cooling at the cutting location.

The invention relates to an oil flow guide structure, a cooling device and a transformer coil, and is applied to the field of oil-immersed transformers. The oil guide assembly comprises a plurality of oil guide supporting strips, and the oil guide supporting strips can extend in the first direction and are attached to at least one side wall of a coil of the transformer; an oil guide cavity is formed in the oil guide supporting strip, an oil inlet used for inputting cooled insulating oil is formed in the oil inlet end of the oil guide supporting strip, an oil outlet is formed in the side, close to the closed end, of the surface of the oil guide supporting strip, and the oil outlet is used for conveying oil in the oil guide cavity to an upper coil of a transformer coil. According to the cooling device, the semiconductor chilling plate is used for generating cooled insulating oil, the cooled insulating oil is input into the oil guide cavity from the oil inlet and conveyed to the hot spot area of the upper coil of the transformer through the oil outlet communicated with the oil guide cavity, the cooled insulating oil is mixed with oil flow flowing in the upper coil, and therefore the average temperature of the oil flow is reduced, and the cooling efficiency is improved. Meanwhile, the oil flow is increased, and the heat dissipation capacity of the hot spot area of the upper coil of the coil is enhanced.

The invention relates to the technical field of plastic molding, in particular to a plastic pad extrusion molding cooling device which comprises a vertical frame, a fixed cylinder, a roller, a spiral sleeve and a detection assembly. The roller is divided into a plurality of cooling cavities for independently supplying water, water is supplied to the cooling cavities at the same time, the problem of uneven cooling caused by water flowing is solved, the spiral sleeve forcibly cools water to form turbulent flow, and compared with smooth laminar heat exchange, the cooling efficiency is improved, and the service life of the roller is prolonged. Then, the cooling temperature is detected in real time by means of the detection assembly, external supplementary cooling is conducted according to the situation, and therefore the mode that water is independently supplied to the multiple cooling cavities for turbulent cooling and matched with external supplementary cooling is formed, and the uniform cooling degree of the plastic pad is comprehensively improved; and the quality problems of buckling deformation, sinking, shrinkage and the like of the plastic pad caused by non-uniform cooling are avoided.

The invention relates to the technical field of cross flow fans, in particular to a dry-type transformer cross flow cooling fan. Comprising a lower shell, an upper shell is arranged at the top of the lower shell, a transverse flow impeller is rotationally installed between the lower shell and the upper shell, air inlets are formed in the front ends of the lower shell and the upper shell, transverse plates are welded to the rear ends of the lower shell and the upper shell, and the two transverse plates are distributed up and down to form an air outlet; an intercepting plate is fixedly connected to the bottom of the inner wall of the upper shell, an air channel is formed in the upper shell, and when airflow passes through the air outlet, part of airflow at the air outlet is intercepted by the intercepting plate, enters the air channel and is exhausted upwards to form an air curtain. By means of the intercepting plate and the air channel, part of air outlet airflow is intercepted to form an air curtain to block hot air backflow, air outlet is concentrated in cooperation with the guide plate of the lower shell, the cooling effect is enhanced, meanwhile, the air inlet opening is increased by means of the adjusting assembly, the air inlet amount is increased, and therefore the problems of hot air circulating suction and low cooling efficiency in the background technology are solved.

An adaptive air intake control system and method for cooling towers, coupled with airflow diversion for energy saving, belongs to the field of adaptive control system technology. The system includes an information acquisition unit, an execution unit, and an adaptive control unit. The information acquisition unit collects environmental wind parameters and key operating parameters in real time. The execution unit includes multiple independent fan blade groups with circumferential partitioning and vertical layering for precise execution of commands. The adaptive control unit executes operational decisions, selecting the dominant operating mode from airflow diversion energy saving, anti-freezing energy saving, and anti-drip energy saving modes; it then identifies and outputs wind condition characteristics and thermal anomaly indicators through key parameter status identification, and generates control commands based on the adaptive control strategy and command generation. The system forms a closed loop, capable of adaptively adjusting the identification model and control strategy based on feedback. A corresponding control method is also disclosed, enabling intelligent and precise control of air intake in cooling towers under complex environments, improving cooling efficiency and energy saving while ensuring anti-freezing safety.

The invention discloses a cutting blade and a cutting tool, and relates to the technical field of cutting tools, the cutting blade is provided with an upper wall surface and a side wall surface, a cutting edge is formed at least partially at the intersection of the upper wall surface and the side wall surface, the cutting edge at least comprises a tool nose cutting edge extending in an arc shape, and the upper wall surface is provided with a front tool surface, a chip breaker groove and a top surface. The upper wall face is provided with a protruding part corresponding to the tool nose cutting edge, at least part of the protruding part is located in the chip breaker groove, the protruding part extends to the front tool face from the top face, a flow guide groove is formed in the protruding part, and the flow guide groove extends to the front tool face from the top face. The protruding part is arranged and can be at least supported between the groove wall of the chip breaker groove and the front tool face, so that the structural strength of the cutting blade is improved; a flow guide groove is further formed in the protruding part, chip curling is facilitated, chip removal smoothness is improved, the risk of chip blockage is reduced, meanwhile, the flow guide groove can guide cutting fluid, the cooling efficiency of the cutting blade is improved, and the risk of tipping or damage of the cutting blade is reduced.

The present invention relates to a flexible thermoelectric device that may be combined and attached to a curved surface and generates an electromotive force based on a temperature difference between one surface and the other surface, and more particularly, to a flexible thermoelectric device having a radiative cooling part which improves power generation performance by increasing cooling efficiency of a cooling side through radiative cooling and minimizes a volume of a heat dissipating part, and a method of manufacturing a radiative cooling part.

The invention discloses an electrical transmission member, an electrical transmission assembly, an electrical connection assembly and an electrical connection device. The electrical transmission member includes: a pair of conductors having a flat shape and arranged to face each other at an interval in a width direction thereof; and an insulator wrapping the pair of conductors and forming a cooling passage, each conductor having two side surfaces facing each other in the width direction thereof, the cooling passage being located between the side surfaces of the pair of conductors such that the pair of conductors can be cooled by a cooling fluid flowing through the cooling passage. The cooling passage is large in cooling area and high in cooling efficiency, so that the pair of conductors can be fully cooled by the cooling fluid flowing through the cooling passage, and the temperature rise of the electric transmission piece can be effectively reduced under the condition that the sectional area of the conductors is not increased.

The application discloses a high-tech ship pipeline valve shell casting cooling device, and relates to the technical field of ship accessory casting, which comprises a cooling box, a pipeline valve shell body is arranged in the cooling box, and a steering transposition mechanism for steering and transposing the pipeline valve shell body by 180 degrees is arranged in the cooling box. The high-tech ship pipeline valve shell casting cooling device realizes the automatic reciprocating steering and transposition of the valve shell in the cooling liquid by 180 degrees through the arrangement of the steering transposition mechanism. The inclination angle of the valve shell is periodically changed, so that the high-temperature cooling liquid quickly separates from the surface of the valve shell and mixes with the surrounding low-temperature cooling liquid, meanwhile, the new low-temperature cooling liquid continuously supplements the cooling contact surface, so that the "heat barrier" is avoided, and meanwhile, the speed of the cooling liquid flowing through the surface and the inner wall of the valve shell is accelerated in the process of continuous swinging and steering of the valve shell, so that the cooling efficiency is improved.