1522results about How to "Reduce heat" patented technology

The invention discloses a training method and device of a distributed computing system, a program product and a medium, which are used for solving the problems of performance difference and low communication efficiency of heterogeneous computing nodes. According to the scheme, the calculation capability of each calculation node is fully considered, so that dynamic allocation and iterative optimization of tasks are realized; specifically, the problems of idle resources and low efficiency are avoided by acquiring the computing power of each computing node and allocating the training task matched with the computing power to the computing node; the time length of single iteration is determined, and the number of iterations in the communication interval is adjusted according to the time length, so that each computing node can perform data exchange at a proper time, network bandwidth occupation and delay caused by frequent communication are reduced, the overall efficiency of the training process is optimized, mutual waiting between the computing nodes is avoided, and the network performance is improved. When the computing node runs the training process, the power consumption and heat generation are reduced, and the communication overhead is also reduced, so that the long-term stability and reliability of the computing node are improved.

The invention relates to the field of welding, and particularly discloses a laser galvanometer system and a high-power laser scanning welding head. The laser galvanometer system comprises a mounting shell, a galvanometer mounting seat and a galvanometer system; the galvanometer mounting seat is mounted on the inner bottom surface of the mounting shell, a mounting cavity is formed in the bottom surface of the galvanometer mounting seat, and the galvanometer system is mounted in the galvanometer mounting seat; the galvanometer system comprises a first galvanometer, the first galvanometer comprises a first motor, a first lens bracket and a first lens, and the first lens bracket comprises a connecting part and a mounting part; the connecting part is connected to a first motor output shaft; the mounting part is connected to the side of the connecting part away from the first motor, the side of the mounting part is provided with a mounting groove for placing the side of the first lens, and the edge of one side of the first lens is adhered in the mounting groove; two protection tables are connected to the side face of the mounting part and located on the two sides of the mounting groove correspondingly. The two ends of the installation part are connected with two protrusions, and the two protrusions are located on the two sides of the installation groove respectively. The laser scanning welding head has the effect of solving the heat effect of the laser scanning welding head.

The invention discloses an integrated battery box body based on a double-circulation liquid cooling system, which comprises a box body, a battery area, a low-flow-rate pipeline, a high-flow-rate pipeline, a cooler and a liquid pump, a plurality of cooling plates are arranged in the battery area, and low-flow-rate flow channels and high-flow-rate flow channels are arranged in the cooling plates; the two ends of the cooling plate are provided with through openings and switching pipes which are in sliding sealing connection with the low-flow-speed flow channels and used for switching the high-flow-speed pipelines to be communicated with the high-flow-speed flow channels through sliding, and air bag assemblies used for pushing the switching pipes to slide through battery heat changes are arranged in the low-flow-speed flow channels. According to the invention, the battery box body is provided with a low-flow-rate pipeline and a high-flow-rate pipeline which can realize double circulation by only one liquid pump, so that the liquid cooling efficiency of the battery is enhanced; and the switching pipe and the airbag assembly are arranged in the cooling plate, so that the flow speed of the cooling liquid is automatically switched according to the battery temperature, and the liquid cooling efficiency of the cooling plate on the battery is enhanced.

The zero-coating rice cooking utensil comprises a pot body which is used for making contact with a food material face and made of a stainless steel metal layer, the inner surface of the stainless steel metal layer is provided with micron-sized biting pattern paths, the micron-sized biting pattern paths comprise hydrophobic concave-convex parts which are distributed randomly, and the hydrophobic concave-convex parts are arranged on the inner surface of the stainless steel metal layer. And the roughness of the hydrophobic concave-convex part on the inner side wall of the pot body is smaller than that of the hydrophobic concave-convex part on the inner bottom wall of the pot body. The micron-sized biting patterns are arranged on the inner surface of the stainless steel metal layer, more violent local heat convection can be formed in the early stage of rice cooking, rice grains are stirred better, the rice grains are in a dynamic state and are not prone to adhering to the inner wall, a water and air flowing channel is opened, water can be supported in the later stage of cooking, and the rice cooking effect is improved. Therefore, more moisture can moisten the rice for a longer time, the bonding force between the rice and the pot body is reduced, the probability that the bottom of the pot body is stuck to the pot body is reduced, the rice is more uniform, and the zero-coating non-sticky effect is achieved.

The invention relates to the technical field of cables, in particular to a low-smoke halogen-free flame-retardant cable which comprises a plurality of conductor wire cores, the conductor wire cores are sleeved with isolation layers, the multiple isolation layers are sleeved with an inner sheath, the inner sheath is sleeved with a functional protection assembly, the functional protection assembly is wound with a binding tape, and the binding tape is wound with an outer sheath. The binding tape is sleeved with an outer sheath. The function protection assembly comprises a plurality of circular rings arranged outside the inner sheath in a sleeving mode, a cooling assembly is fixedly connected between every two adjacent circular rings, and isolation assemblies for preventing ignition points from extending from the spontaneous ignition point of the cable to the two sides are installed on the outer sides of the circular rings and comprise a plurality of elastic plates made of magnetic metal and fixedly connected with the circular rings. Limiting grooves are formed in the sides, away from the circular rings, of the elastic plates, and the multiple elastic plates are sleeved with rubber rings. The problem that the cost of protecting the cable when the existing cable is blocked by the bridge frame to move along the direction parallel to the cable at a short-circuit spontaneous ignition point is solved.

The embodiment of the invention relates to the photovoltaic field, and provides a manufacturing method of a battery string, a manufacturing method of a photovoltaic module and the photovoltaic module, and the manufacturing method of the battery string comprises the steps: providing an initial battery piece; segmenting the initial battery piece to form at least three segmented battery pieces; a buffer adhesive film is laid on the surface of the end part, close to the adjacent split battery piece, of each split battery piece; carrying out thermal fixation treatment, which comprises the following steps: heating the buffer adhesive film so as to enable the buffer adhesive film to be adhered to the surface of the fragmented battery piece; a welding strip is provided, the welding strip is electrically connected with the at least two fragmented battery pieces so as to connect the adjacent fragmented battery pieces in series, the adjacent fragmented battery pieces are partially overlapped, and the welding strip covers the buffer adhesive film on the surfaces of the fragmented battery pieces; and laser welding is carried out, and the laser welding comprises the steps that laser is controlled to irradiate the surface of the welding strip, so that the welding strip is welded to the surface of the fragmented battery piece. The reliability of the formed battery string can be improved.

The invention relates to the technical field of cell culture, and particularly provides an adjusting system and method for a cell incubator, and the system comprises a clean gas supply assembly which comprises a first gas driving assembly and a filtering assembly; a first temperature acquisition assembly; a second temperature acquisition assembly; a first humidity acquisition assembly; the controller is used for controlling the first gas driving assembly to drive external air to flow into the cell culture box when the in-box temperature information is smaller than a preset temperature lower limit value, the environment temperature information is larger than the in-box temperature information and the environment humidity information is smaller than a preset humidity upper limit value; the controller is also used for controlling the first gas driving assembly to drive external air to flow into the cell culture box when the in-box temperature information is greater than a preset temperature upper limit value, the environment temperature information is smaller than the in-box temperature information and the environment humidity information is smaller than a preset humidity upper limit value; according to the system, the energy consumption and the temperature regulation cost of the cell culture box are effectively reduced.

The utility model provides a horizontal machining center facilitating deep hole machining, and belongs to the technical field of deep hole machining of horizontal machining centers. The horizontal machining center facilitating deep hole machining comprises a body, a sliding table is installed in the body in a sliding mode, the number of the stabilizing mechanisms is two, and each stabilizing mechanism comprises a first stabilizing plate, a first rotating rod, a connecting plate, a second rotating rod and a second stabilizing plate. By arranging the stabilizing mechanism, after a workpiece is fixed, a sliding table is started, at the moment, a second stabilizing plate makes contact with the surface of the workpiece, after the second stabilizing plate is extruded by the workpiece, a second rotating rod is bent, a first rotating rod is bent at the same time, two connecting plates move in the opposite directions, and the first connecting rod and the second connecting rod rotate; the two bearing plates move in the opposite directions, and the second stabilizing plate is always kept in a vertical state to be tightly attached to the surface of the workpiece, so that the workpiece is kept stable.

The utility model discloses a waste heat recycling system of a drying and cooling machine, which is characterized in that a first-layer hot air outlet of the drying and cooling machine is connected with an air inlet of a dust removal cyclone dust collector, and a top air outlet of the dust removal cyclone dust collector is connected with a plate-type layer hot air inlet of an air-air heat exchanger; a plate layer hot air inlet of the air-air heat exchanger is connected with a shell pass hot air inlet of the air-water heat exchanger, and a shell pass tail gas outlet of the air-water heat exchanger is connected with a tail gas discharge pipe through an induced draft fan; an air outlet of the air blower is connected with a shell pass air inlet of the air-air heat exchanger; a shell pass air outlet of the air-air heat exchanger is connected with a first-layer hot air inlet of the drying cooler; a water outlet of the hot water tank is connected with a plate-type layer hot water inlet of the air-water heat exchanger through a hot water circulating pump, a plate-type layer hot water outlet of the air-water heat exchanger is connected with a water inlet of a plate-type hot water heat exchange layer of the conditioning tower, and a water outlet of the plate-type hot water heat exchange layer is connected with a water inlet of the hot water tank. The system fully recovers waste heat of the drying cooler, and is low in investment cost and good in comprehensive economic benefit.

The invention relates to the field of artificial intelligence chips, in particular to an artificial intelligence chip integrated with an on-chip memory array, a computing task processing method and electronic device.The chip comprises a controller and a plurality of processor-memory modules, obtaining a plurality of sub-calculation tasks; the processor-memory module comprises a processing unit group, a memory and a scheduler, the processing unit group comprises a plurality of processing units, and the processing units process the sub-calculation tasks; the memory stores data related to the plurality of processing units in the processing unit group when executing the corresponding sub-calculation tasks; the scheduler is connected to the plurality of processing units and the memory and is used for scheduling access operation of the plurality of processing units to the memory, the processing unit group is arranged in a processing layer of the artificial intelligence chip, the memory is arranged in a storage layer of the artificial intelligence chip, and the processing unit group is used for processing the processing units. The processing layer and the storage layer are arranged in a stacked mode.

The invention relates to the technical field of adjusting valve machining, and particularly discloses an adjusting valve part cutting machining device and a machining method thereof.The adjusting valve part cutting machining device comprises a feeding platform capable of loading and controlling a valve rod to move and a fixing frame, and is characterized in that a fixing ring is fixedly installed in the fixing frame, and a plurality of sliding grooves are formed in the side wall of the fixing ring; a sliding block capable of sliding is arranged in each sliding groove, and the sliding blocks slide centripetally or centrifugally. The adjustable cutters are arranged to cut the outer wall of the valve rod, so that stress between the outer wall of the valve rod and the cutters can be shared by the cutters, abrasion of cutter heads of the cutters is reduced, the service life of the cutters is prolonged, heat generated by friction between a single cutter and the outer wall of the valve rod can be reduced, and the service life of the cutters is prolonged. Thermal deformation of the tool bit caused by overheating of the tool bit due to long-time high-temperature influence can be avoided, the machining speed of the machine tool on the valve rod can be increased, and the cutting precision of the machine tool on the valve rod can be improved.

The invention discloses a battery monomer, a battery and a power utilization device. The battery cell includes a housing, a pressure relief mechanism, and a protective member. The housing includes a wall portion. The pressure relief mechanism is arranged on the wall part, and the pressure relief mechanism can be actuated under the condition that the internal pressure or temperature of the battery cells reaches a threshold value so as to release gas in the shell. The protective member has a melting point of 300 DEG C or more, and covers at least a portion of the pressure relief mechanism in the thickness direction of the wall portion.

The utility model relates to the technical field of production of products taking carbonate as a raw material, and provides a system for producing products taking carbonate as a raw material and recovering carbon dioxide, which comprises a preheating device, a calcining furnace, a finished product collecting device and a carbon dioxide collecting device, a feeding port of the preheating device is used for being communicated with the feeding device, a discharging port of the preheating device is communicated with a feeding port of the calcining furnace, a discharging port of the calcining furnace is communicated with an inlet of the finished product collecting device, and an air outlet of the finished product collecting device is communicated with an air inlet of the preheating device. A gas outlet of the preheating device is respectively communicated with gas inlets of the carbon dioxide collecting device and the finished product collecting device. Gas-solid separation is carried out on combustion products of the calcining furnace through the finished product collecting device, smoke is recycled between the preheating device and the finished product collecting device, heat of finished products is reduced, the concentration of carbon dioxide in the smoke is improved, and low-cost collection, low energy consumption and environmental protection of the carbon dioxide collecting device are facilitated.

The invention relates to the technical field of cable manufacturing, in particular to a superconducting coaxial cable for a quantum computer and a manufacturing method thereof, and the method comprises the steps: coating an inner conductor with an inner insulating layer to form an inner conductor layer, and electroplating a niobium compound coating on the inner wall of a stainless steel tube to form an outer conductor; forming a cable conductive layer; acquiring an advancing speed change curve of a single inner conductor layer; determining a first velocity mutation type and a second velocity mutation type; determining the vertical stirring speed of the electroplating stirring rod at the position of the outer conductor; electroplating the inner wall of the stainless steel pipe; according to the friction degree of the inner conductor layer and the outer conductor, determining an inner conductor motion adjusting mode, including adjusting the moving speed of the inner conductor layer in the outer conductor, or determining the initial rotating speed of the inner conductor layer when the outer conductor starts to pull a wire; and performing wire drawing on the sleeved outer conductor to form the cable. According to the invention, the stability of cable assembly is improved.

The invention discloses a photovoltaic inverter, the photovoltaic inverter comprises a power assembly, a heat radiator and a heat radiation fan, each current conversion pipe fitting of a second current conversion unit in the power assembly is sequentially arranged from the outer side of a circuit substrate to the inner side, and from the outer side to the inner side, the current conversion pipe fitting located at the position closer to the inner side is connected with the heat radiation fan. And compared with the other adjacent variable flow pipe fitting located closer to the outer side, the variable flow pipe fitting is far away from the first variable flow module, the arrangement direction of the variable flow pipe fittings enables the long edge of the internal wafer to form an included angle relative to the vertical direction, and the projection long edge of the internal wafer stretches across the at least two heat dissipation fins. The heat dissipation efficiency of the semiconductor device in the middle position in the power assembly of the photovoltaic inverter is better.

The invention provides an MPS diode and a manufacturing method thereof, and relates to the technical field of semiconductors. The MPS diode comprises: an N-type epitaxial wafer; the terminal region and the active region are located on the surface of the N-type epitaxial wafer; wherein the active region comprises at least one first P column, and each first P column comprises a P-type side wall, a first dielectric layer, an ohmic contact layer and a second dielectric layer; a passivation protection layer located on the surface of the terminal area; the third dielectric layer and the first metal layer are positioned on the surface of the active region; the second metal layer is positioned on the back surface of the epitaxial wafer; wherein the third dielectric layer is in contact with the second dielectric layer, and the first metal layer is arranged around the third dielectric layer. The MPS diode and the manufacturing method thereof provided by the invention have the advantages that the device area is reduced, and the reliability and robustness of the device are improved.

The present invention discloses an integrated device of a motor and a planetary reducer and a manufacturing method thereof, and the technical scheme thereof includes: a casing, a motor assembly and a planetary reducer assembly, the casing is provided with mounting cavities for the motor assembly and the planetary reducer assembly respectively, the motor assembly and the planetary reducer assembly are matched in transmission, and a cooling structure is provided on the outer circle of the casing. The manufacturing method mainly processes the casing, the stator core is installed on the casing, the rear end cover of the motor is fixed on the casing, the rotor of the motor is first installed on the front end cover inside the motor, and then pressed into the stator, the sun gear of the planetary reducer is installed on the motor shaft, and the gear lubricating oil is added through the planetary gear oil filling port on the casing, and the coolant needs to be introduced into the casing during operation. The entire technical scheme has a compact structure, simple transmission, and convenient maintenance, and the system efficiency, rotation accuracy, position accuracy and service life are greatly improved, and the heat generation and operating noise are greatly reduced.

The invention relates to the technical field of solid beverage food preparation, and discloses instant sugar-controlling and fat-reducing solid milk tea and a preparation method thereof. The formula of the instant solid milk tea capable of controlling sugar and reducing fat comprises the following raw material components in parts by mass: 2-4 parts of tea powder, 10-30 parts of milk powder, 1.8-2.5 parts of freeze-dried ginger powder, 8-15 parts of coconut oil powder, 6-8 parts of linseed diglyceride oil powder, 3-5 parts of stevioside powder and 2-4 parts of freeze-dried fruit powder. The instant sugar-controlling and fat-reducing solid milk tea provided by the invention is strong in solubility, can be quickly dissolved at low temperature without precipitation, is rich in nutrition, savoury and mellow in taste, smooth, fine and smooth without granular sensation and low in calorie, can accelerate fat consumption of an organism and soften blood vessels after being drunk, and has the characteristics of being instant, controlling sugar and reducing fat.

The invention provides a high-heat-dissipation flanging type copper strip frame structure which comprises a frame body, and the surface of the frame body is sequentially connected with frame carriers from left to right. The plurality of flanged copper strips are respectively arranged on the surfaces of the plurality of frame carriers, and a copper strip folding lug is arranged on one side of the surface of each flanged copper strip; the chip main body is arranged on the surface of the edge folding type copper strip and located on one side of the copper strip folding lug, a plurality of copper strip glue locking holes are transversely and longitudinally formed in the surface of the edge folding type copper strip, and a plurality of elastic piece supporting feet are sequentially arranged on the surface of the frame main body from left to right. According to the high-heat-dissipation edge-folded type copper strip frame structure provided by the invention, in the aspect of electrical performance, resistance is reduced, heat generation is reduced, a relatively high packaging resistance value caused by metal wire connection can be avoided, so that heat generated when current passes through is reduced, the performance and the stability of a chip are favorably improved, and the service life of the chip is prolonged. And the limitation of the conductive performance of the metal wire is broken through.

The utility model belongs to the technical field of powder transportation, and discloses powder transportation equipment which comprises a first shell, a transportation assembly and a transmission assembly, and a feeding port and a discharging port are formed in the two sides of the first shell respectively; the conveying assembly comprises a rotating shaft, a bearing and a spiral blade, the bearing is connected with the rotating shaft, a cooling cavity is formed in the rotating shaft, the two ends of the rotating shaft are connected with conveying pipelines, the conveying pipelines communicate with the cooling cavity, and the rotating shaft penetrates through the first shell and is rotationally connected with the first shell; the spiral blade is located in the first shell and fixedly connected with the rotating shaft. The transmission assembly comprises a driving piece, and the driving piece is connected with the rotating shaft. Thus, high-temperature powder enters the first shell through the feeding port and is conveyed to the discharging port under the action of the spiral blade, a cooling medium is conveyed into the cooling cavity through the conveying pipeline, heat transferred to the bearing can be reduced, and the situation that the temperature of the bearing is too high is avoided.

The utility model provides a columnar light source and relates to the technical field of light sources, a water inlet cavity and a water return cavity are arranged in a body, the water inlet cavity extends to the second end of the body from a water inlet, a heat exchange section bar is arranged on the outer side of the water return cavity, the water inlet cavity and the water return cavity are communicated at the position of the second end of the body, and the water return cavity is arranged to be annular. The water inlet cavity is formed in the space defined by the inner side wall of the water return cavity, the water return cavity is communicated with the first water outlet, lamp beads are arranged on the periphery of the body, when the lamp beads emit light, a large amount of heat energy is emitted, and a fluid medium enters the water inlet cavity from the first water inlet and flows to the first water outlet through the water return cavity. Due to the fact that the water return cavity is formed in the periphery of the water inlet cavity, the outer side wall of the water return cavity is arranged to be the heat exchange sectional material, heat exchange is carried out in the water return cavity, and due to the fact that the water return cavity is annular, heat energy on the periphery of the body can be exchanged in the water return cavity so as to reduce heat around the lamp beads.

The invention discloses a stamping device used for security camera shell machining and provided with a guide supporting column, and belongs to the field of security camera shell machining. A stamping device with a guide pillar for processing a security camera shell comprises a lower die and an upper die, the top of the lower die is provided with the guide pillar, and the bottom of the upper die is provided with a guide sleeve for positioning the guide pillar and an adjusting assembly arranged on the guide sleeve and the guide pillar. The upper die and the lower die are used for improving the accuracy of the lower die and the upper die in a stamping machining state; sliding friction is converted into rolling friction through the arranged adjusting assembly, the friction force between the guide column and the guide sleeve is effectively reduced, energy consumption is reduced, heat generated by friction is reduced, the overall efficiency of equipment is improved, the service life of the equipment is prolonged, meanwhile, the energy storage assembly and the lubricating assembly are matched, and the service life of the equipment is prolonged. The stability of the device during use is improved, the maintenance is convenient, the time of frequent manual inspection is saved, and the working efficiency is improved.

The invention belongs to the technical field of food processing, and particularly relates to a method for improving the taste and flavor of gel konjak noodles. Comprising the following steps: uniformly mixing 30-50 parts by weight of purified konjac powder, 10-30 parts by weight of wheat starch, 950-1050 parts by weight of drinking water, 0.1-1 part by weight of a natural pigment, 5-15 parts by weight of soybean protein isolate, 5-15 parts by weight of powdered oil and 15-25 parts by weight of a flavor substance to obtain a konjac mixture, mixing the konjac mixture with alkali liquor to obtain konjac dough, and baking the konjac dough in a baking oven to obtain the konjac flour. Performing extrusion forming on the konjak dough, performing heating to obtain konjak noodles, and finally performing dealkalization soaking treatment on the konjak noodles by adopting natural organic acid to obtain the gel konjak noodles. Through raw material combination and soaking treatment, the gel structure and puffing degree are changed, and alkali is removed, so that the flavor and taste of the gel konjak noodles are effectively improved.

The invention relates to the technical field of hydrophobic flame-retardant materials, and discloses a method for preparing a super-hydrophobic flame-retardant flexible material from a water-dispersed nanocellulose compound, which comprises the following steps: preparing a nanocellulose suspension; synthesizing silicon dioxide nanoparticles; preparation of a precursor suspension: mixing SiO2 nanoparticles, methyltrimethoxysilane and the nanocellulose suspension in proportion, and carrying out a reaction to obtain the precursor suspension; preparing a polyvinyl alcohol solution; preparing a water-dispersible plant nano cellulose compound mixed solution, and freezing the water-dispersible plant nano cellulose compound mixed solution; and carrying out freeze drying treatment and heat treatment on the frozen material to obtain the super-hydrophobic flame-retardant flexible material. According to the method for preparing the super-hydrophobic flame-retardant flexible material by adopting the water dispersible nano-cellulose compound, the material preparation process is green and pollution-free, and the prepared flexible material has the characteristics of high elasticity, high oil absorbency, reusability, fire resistance, degradability and the like, and can be applied to various fields.

The invention discloses a power grid cable connection auxiliary device which comprises an insulating shell, a connector is slidably connected to the top of the insulating shell, a fixing frame is fixedly connected to the top of the connector, a fixing ring is fixedly connected to the top of the fixing frame, a conductive base is fixedly connected to the interior of the insulating shell, and a sliding cylinder is fixedly connected to the front face of the conductive base. A gas guide rod is fixedly connected to the front face of the conductive seat, a conductive tube is fixedly connected to the interior of the sliding cylinder, a buffer head is slidably connected to the interior of the conductive tube, the top of the insulating shell communicates with a flow divider, a rod-shaped gas valve is slidably connected to the front face of the flow divider, and a gas valve connecting block is fixedly connected to the front face of the rod-shaped gas valve. According to the device, by means of the poor contact separating mechanism and the conductive effect maintaining mechanism, loosening of the cable connecting position is relieved, the loosened cable is automatically pushed away when contact is poor, and the safety of a line is improved.

The invention discloses a three-degree-of-freedom macro-micro composite piezoelectric nano probe station, and relates to the technical field of semiconductor manufacturing and biotechnology. In order to solve the technical problems that in the prior art, an existing motor-driven probe station is large in cooperative control difficulty, the positioning precision and the stability are difficult to consider, the structure is complex, and the energy consumption is high, the technical scheme provided by the invention is that the three-degree-of-freedom macro-micro composite piezoelectric nano probe station is provided. Comprising a probe bench surface, an XY macro-motion mechanism, an XY micro-motion mechanism and a Z-direction mechanism. The XY macro-motion mechanism comprises an X piezoelectric motor and a Y piezoelectric motor which are used for achieving dozens of millimeter level horizontal movement in the X-axis direction and the Y-axis direction respectively. The XY micro-motion mechanism is used for realizing accurate movement of several nanometers to dozens of nanometers in the X-axis direction and the Y-axis direction; the Z-direction mechanism is used for realizing dozens of microns of lifting in the Z-axis direction; the probe bench surface is used for bearing a bearing object and is also used for driving the bearing object to move along the X-axis and Y-axis directions. The device is suitable for semiconductor manufacturing and biotechnology testing work.

The invention relates to the field of high polymer materials, and provides a preparation method and application of composite halogen-free high-phosphorus-content flame-retardant polyester aiming at the problems of non-uniform component dispersion and poor anti-dripping effect of the composite flame-retardant polyester. The preparation method comprises the following steps: mixing dihydric alcohol, terephthalic acid, a catalyst, esterification liquid of the reaction type phosphorus flame retardant and the reaction type nitrogen flame retardant, sequentially carrying out esterification reaction and polycondensation reaction to obtain a melt, and treating the melt to obtain the composite halogen-free high-phosphorus-content flame-retardant polyester. The invention also provides application of the flame-retardant polyester. According to the invention, the reactive phosphorus flame retardant participates in the polyester polymerization process, so that the influence on the molecular regularity of polyester is small, and the crystallization behavior and post-processing performance of slices are not influenced; the apparent viscosity of the polyester is improved by the modified nitrogen flame retardant, the polycondensation time is greatly shortened, and the polyester with lasting flame-retardant effect and good anti-dripping effect is obtained by compounding multiple halogen-free flame retardants.

The invention discloses a chip module and a self-test method thereof, and a laser radar, the chip module comprises a system-on-chip and a cover plate, the system-on-chip comprises a substrate layer and a device layer which are stacked, one side, away from the substrate layer, of the device layer is provided with a first surface, the substrate layer comprises a second surface and a side surface, the second surface is the surface of the side, away from the device layer, of the substrate layer, the second surface is provided with a heat dissipation groove, the heat dissipation groove extends on the second surface and penetrates through the side face, the cover plate is arranged on the second surface and blocks an opening of the heat dissipation groove in the second surface, and the chip module further comprises a transmitting chip, a first receiving chip and a second receiving chip which are arranged on the first surface. According to the laser radar, heat is brought out of the chip module in the area away from the transmitting chip, the first receiving chip and the second receiving chip through the refrigerant in the heat dissipation groove, the transmitting chip, the first receiving chip and the second receiving chip are integrated into the same system-level chip, and the size of the laser radar is effectively reduced.

The invention relates to the technical field of crushing machine detection, in particular to a detection device for a health-care food powder crushing machine, comprising: a crushing module for crushing health-care food into powdery health-care food through the crushing machine; the detection module comprises a current sensor which is connected with the crushing machine and is used for detecting the working current of the crushing machine, and a vibration sensor which is connected with the crushing machine and is used for detecting the vibration intensity of the crushing machine; the control module is connected with the crushing module and the detection module and used for judging whether the detection stability of the crushing machine meets the requirement or not according to the variance of the fluctuation amplitude of the working current of the crushing machine. When the requirements are not met, the rotation angle of the crushing machine is adjusted or the detection frequency of the pressure sensor is adjusted according to the average vibration strength of the crushing machine, and the feeding speed of the health food is adjusted according to the average vibration strength of the crushing machine and the temperature rising speed in the crushing machine. According to the invention, the detection stability of the crushing machine is improved.

The invention provides a lithium ion battery, which comprises a battery cell and an aluminum plastic film wrapping the battery cell, the battery cell comprises a positive pole piece, an isolation film, a negative pole piece and an electrolyte, the shrinkage rate of the isolation film is Y%, the aluminum plastic film comprises a polypropylene film, an aluminum foil and a composite nylon layer which are arranged in sequence, nano-metal is distributed in the composite nylon layer, the particle size of the nano-metal is 35-75nm, and the diameter of the nano-metal is 20-30nm. The addition amount of the nano metal in the composite nylon layer is Zwt%, and Y and Z meet the relation that Y / Z is larger than or equal to 0.18 and smaller than or equal to 1.45. According to the lithium ion battery, chemical heat generated by temperature rise in the battery cell can be rapidly exported, temperature rise in the battery cell can be delayed, and the passing rate of a hot box can be increased.