35results about How to "Reduce transfer speed" patented technology

The utility model belongs to the technical field of bone tissue storage, and particularly relates to a bone tissue gas phase liquid nitrogen storage device which comprises a tank body, handles are fixedly installed on the two sides of the upper end of the tank body, and a vacuum layer is arranged on the side wall of the tank body. In the using process, the arrangement of the vacuum layer is beneficial to isolating the temperature difference inside and outside the device, reducing the speed of transferring heat through the wall surface of the tank body and remarkably improving the heat preservation performance of the tank, meanwhile, the heat preservation layer is filled in the vacuum layer to further improve the heat insulation effect, and the heat preservation layer usually has low heat conductivity, so that heat flow is effectively blocked, and the service life of the tank is prolonged. And meanwhile, the structural stability of the device can be improved through the arrangement of the vacuum layer and the heat preservation layer, the vacuum layer can serve as a buffer area, the influence of external impact on the content in the tank is reduced, and therefore the durability and safety of the tank are improved, and the service life of the tank is prolonged. And the weight of the device can be reduced.

The present invention discloses a heat-insulating fireproof material and its application. The heat-insulating fireproof material at least comprises a heat-insulating layer, wherein the heat-insulating layer comprises a porous material and hollow particles, and the volume density of the porous material is 0.05 to 0.30 g / cm 3 The average diameter of the hollow particles is 30 to 1000 μm, and the thermal conductivity of the heat-insulating fireproof material after carbonization is less than 0.040 W / (m·K) at room temperature. The heat-insulating fireproof material of the present invention has the characteristics of good flame retardancy, high temperature resistance, small thermal conductivity and light weight, and can be used between the cells of power batteries.

The invention discloses a data processing method and device, electronic equipment and a computer readable storage medium, which are used for solving the problems that the transmission efficiency and reliability of audio and video streams are difficult to ensure in the process of using a cloud mobile phone in the related technology, so that the stream pushing delay is large, and the frame loss or blurred screen is easy to occur. The method is applied to a cloud mobile phone client, and comprises the following steps: through first long connections established between the cloud mobile phone client and a plurality of target stream pushing servers, receiving audio and video stream slice files which are pushed by the target stream pushing servers and carry slice identification information, and according to the slice identification information, sending the audio and video stream slice files to the cloud mobile phone client; and determining whether each received audio and video stream slice file is received by the cloud mobile phone client for the first time, if so, retaining the audio and video stream slice file as a target audio and video stream slice file, and under the condition that a plurality of target audio and video stream slice files meet a preset aggregation condition, performing aggregation on the audio and video stream slice files. And carrying out aggregation processing on the plurality of target audio and video stream slice files to obtain audio and video streams.

The utility model relates to a rice hulling rubber roller capable of dissipating heat, which aims to solve the technical problems that the temperature of the rubber roller is too high due to long-time friction between the existing rubber roller and rice, the hardness of rubber is easy to reduce, the loss of the rubber roller is fast, and the input cost of production and processing is increased. A group of rubber roller assemblies are arranged in the rice huller shell, a group of auxiliary mechanisms are symmetrically arranged on the surfaces of the end parts of the rubber roller assemblies, and an air inlet pipe is arranged at the top of the auxiliary mechanism on the left side of the rubber roller assemblies. External cold air enters the roller through the air inlet pipe and the left auxiliary mechanism and effectively exchanges heat with the heat on the heat conducting plate, the heat on the heat conducting plate is taken away, heat dissipation of the rubber barrel is achieved, loss of the rubber barrel is delayed, and airflow obtained after heat exchange is exhausted through the right auxiliary mechanism and the air outlet pipe.

The present invention provides an activated carbon activation device with carbonization and activation integrated therein, comprising a heating box, a carbonization furnace, an activation furnace, a feeding mechanism and a discharging bin, a partition plate is arranged in the middle of the heating box, the partition plate divides the interior of the heating box into a first heating chamber and a second heating chamber, one end of the carbonization furnace extends into the first heating chamber, one end of the activation furnace extends into the second heating chamber, the feeding mechanism is connected with the carbonization furnace, and the discharging bin is arranged at the end of the activation furnace extending out of the heating box. The present invention can improve the utilization rate of energy and the quality of activated carbon activation through an integrated design, so as to solve the problems of low energy utilization rate and low processing quality in the existing activated carbon activation process.

The invention discloses a heat storage device, and relates to the technical field of energy utilization, the heat storage device comprises a heat source collection assembly, and the heat source collection assembly comprises a solar energy collection unit, an industrial waste heat collection unit, a geothermal energy collection unit and a wind energy collection unit; the heat storage part is used for storing heat collected by the heat source collecting assembly; the heat source management part communicates with the heat source collection assembly and the heat storage part and is used for transferring heat collected by the heat source collection assembly into the heat storage part. The load end is communicated with the heat storage part; when the load end needs to use heat, the heat storage part supplies heat to the load end, so that redundant heat in the heat energy enrichment area and the heat energy surplus period can be effectively utilized, and the problem that heat supply output is not matched with heat requirements is solved to a certain extent; different types of heat collected by the heat source collection assembly are integrated and buffered through the heat source management part, heat loss caused by local overheating or supercooling of the heat storage part is avoided, and effective utilization of the heat is further achieved.

The utility model discloses knitted fabric tension-adjustable winding equipment which comprises a base, a stand column is arranged on the upper surface of the base, a rotating motor is installed on the side surface of the stand column and connected with a transverse frame through a rotating shaft, a winding motor is arranged on the side surface of the transverse frame, and the winding motor is connected with the stand column through a rotating shaft. A winding roller is installed at the output end of the winding motor, an E-shaped frame is arranged on the upper surface of the base, a fixing roller is installed on one side of the E-shaped frame through a rotating shaft, and an electric cylinder is arranged on the upper surface of the E-shaped frame. According to the utility model, the damping spring and the buffer rubber pad are adopted, so that when the electric cylinder drives the mounting plate to move to adjust the position of the tensioning roller so as to change the fabric tension, the damping spring and the buffer rubber pad can absorb and buffer the impact force caused by the action of the electric cylinder or the change of the fabric tension to a certain extent, and the transmission speed of the force is slowed down; and the external force applied to the tension sensor is more stable, so that the overall performance and reliability of tension control are improved.

The utility model discloses a polyurethane composite insulation board with a good waterproof effect, which belongs to the field of insulation boards and comprises a side board and an insulation board body, the insulation board body comprises a base layer, a waterproof layer is laid outside the base layer, a heat insulation layer is laid outside the waterproof layer, a wear-resistant layer is sprayed outside the heat insulation layer, and the wear-resistant layer is coated outside the heat insulation layer. The side plates are fixedly connected to the two sides of the insulation board body, a clamping block is fixedly connected to one side of one side plate, and a fixing groove is formed in the top of the clamping block; according to the polyurethane composite insulation board with the good waterproof effect, clamping blocks, fixing grooves, splicing plates, through grooves, check blocks, fixing pins, fixing springs and clamping grooves are arranged, two insulation boards can be conveniently spliced in the use process of the insulation boards, meanwhile, the splicing process is simple, convenient, time-saving and labor-saving, the splicing speed of the insulation boards is also increased, and the service life of the insulation boards is prolonged. Therefore, the working efficiency of splicing the insulation board is improved.

The invention discloses a riverway floating garbage separating and blocking device which comprises a supporting seat, a conveying mechanism, a separating pressing plate and a flow guiding mechanism, a limiting shaft is installed at the bottom of the supporting seat, a telescopic frame is installed on the outer side of the limiting shaft, and rotating shafts are rotationally arranged on the supporting seat and the telescopic frame. The conveying belts are rotationally arranged at the two ends of the rotating shaft, a plurality of positioning rods are installed on the conveying belts, the separation pressing plate is clamped to the inner wall of the top end of the supporting base, the extending end of the separation pressing plate is in a bent shape and is parallel to the conveying mechanism, and the flow guide mechanism comprises a pair of transmission frames; compared with the prior art, in the conveying process, a limiting belt can play a blocking role and limit garbage, redundant water in the garbage can be rapidly shaken off when a supporting shaft shakes, and in the swinging process, wound plant garbage can be cut under the action of a fixed blade, and the plant garbage is prevented from being tangled and wound together.

The invention discloses a device for generating flat copper wires for producing hardware parts, and relates to the technical field of stator coil forming of flat copper wire motors. The device comprises a base and a fixing base, wherein the fixing base is fixedly installed on the top of the base, a U-shaped plate is fixedly installed on one side of the fixing base, a second cylinder is fixedly installed at the top center of the U-shaped plate, a piston rod of the second cylinder penetrates the U-shaped plate and is connected with an adjusting plate, a transmission mechanism is fixedly installed on one side of the adjusting plate, and the transmission mechanism is used to drive a plurality of upper pressing wheels arranged on the other side of the adjusting plate to rotate; the invention adjusts the spacing between the lower pressing wheel and the upper pressing wheel, and simultaneously adjusts the spacing between the adjusting wheel and the fixing wheel by pushing the adjusting wheel to move on the adjusting shaft, so as to facilitate straightening of flat copper wires of different diameters, and to extend the range of its application.

The utility model discloses an energy storage device and an energy storage system, the energy storage device comprises an outer box body, a heat insulation layer and a flame retardant structure, and an accommodating space for accommodating a battery device is arranged in the outer box body; the heat insulation layer is made of heat insulation materials; the heat insulation layer is arranged on the wall of the outer box body and located on the side, facing the containing space, of the wall and / or arranged between at least two walls of the outer box body, and the wall supports the heat insulation layer; the flame-retardant structure is located in the heat insulation layer and / or located on the side, facing the containing space, of the heat insulation layer. According to the energy storage device provided by the embodiment of the utility model, the thermal insulation layer and the flame-retardant structure are arranged to slow down the heat transfer speed, and when the thermal runaway of the energy storage device occurs, the time for transferring the temperature to the adjacent energy storage device is prolonged; the heat insulation layer is supported by the wall, a supporting structure of the heat insulation layer does not need to be arranged, the internal space of the energy storage device is saved, and the cost of the supporting structure is reduced.

The utility model provides a kind of frost-proof valve with high temperature sensing sensitivity, including valve seat, temperature sensing valve core and valve sleeve;The valve seat has valve cavity and water inlet;The valve seat is plastic material;The temperature sensing valve core has temperature sensing part, and the temperature sensing valve core is installed in valve cavity, and its temperature sensing part is extended outside valve seat;The temperature sensing valve core includes shell and valve stem;The valve stem is movably installed in shell to close or open the water inlet;The valve sleeve is connected with valve seat and is sleeved outside temperature sensing part;The valve sleeve is metal or alloy material;Multiple outer fins are distributed on the outer wall of the valve sleeve, and multiple inner fins are distributed on the inner wall of the valve sleeve;First drainage channel is provided between the temperature sensing valve core and valve cavity, which is communicated with water inlet;The gap between adjacent inner fins forms second drainage channel communicated with first drainage channel.The valve seat of the technical scheme can slow down the water temperature transmission in faucet, so that the valve core preferentially senses ambient temperature to open or close, with high sensitivity and good frost-proof effect.

The utility model provides a kind of efficient energy-saving environment-friendly insulation board of constructional engineering, it is related to the technical field of insulation board, including environment-friendly board main part, two strip boards and two limit plates, the environment-friendly board main part includes insulation core layer, the outer surface of the insulation core layer is provided with heat insulation transition layer, two vacuum heat insulation cavities are provided in the inside of the heat insulation transition layer, the outer surface of the heat insulation transition layer is provided with protective layer, the left side surface of the environment-friendly board main part is provided with connecting groove. The utility model can effectively prevent heat conduction and reduce the speed of heat transfer by setting the insulation core layer of novel aerogel composite polyurethane foam material, by setting the heat insulation transition layer of polystyrene resin material on the outer surface of insulation core layer, and setting two vacuum heat insulation cavities in the inside of heat insulation transition layer, the speed of heat conduction can be effectively reduced, by setting protective layer on the outer surface of heat insulation transition layer, the tensile strength of environment-friendly board main part can be effectively guaranteed.

The invention provides a steel structure broken bridge ultra-low energy consumption passive door structure, and belongs to the technical field of passive doors. The steel structure broken bridge ultra-low energy consumption passive door structure comprises a door frame structure, the door frame structure comprises a first frame body structure, a second frame body structure and a first heat insulation strip, and the first frame body structure and the second frame body structure are separated through the first heat insulation strip so that a first partition cavity can be formed between the first frame body structure and the second frame body structure; the door leaf structure comprises a first door body structure, a second door body structure, a third door body structure and a second heat insulation strip, and the first door body structure and the second door body structure are separated through the second heat insulation strip so that the first door body structure and the second door body structure can form a second partition cavity; the first door body structure, the second door body structure and the second heat insulation strip are arranged on the side, close to the door frame structure, of the third door body structure.

This utility model discloses a heat preservation device for flower cultivation, including a heat preservation box. The heat preservation box includes a storage cavity and a water cavity. Water is placed inside the water cavity, and electric heating plates are fixedly connected to both sides of the inner wall of the water cavity. This utility model adopts a structural design in which the heat preservation box has a storage cavity and a water cavity. The water in the water cavity is heated by the electric heating plates. Through the thermal conductivity of water, heat can be evenly transferred to the left, right, top, bottom, and back of the storage cavity, which to a certain extent avoids the problem of uneven local temperature caused by traditional single biological lamp heating. With the heat preservation box and the heat preservation cover plate fixedly connected to the surface of the heat preservation box, a multi-layer heat preservation structure is formed, which can significantly slow down the transfer rate of internal heat to the outside. This device has the advantages of good heat preservation effect, maintaining a suitable internal temperature for a long time, and flexible adjustment of the internal temperature of the device.

The invention discloses a data prediction method based on real-time adaptive signal decomposition. The method comprises the steps of adaptive signal dynamic adjustment, original data matrix decomposition, linear equation set construction, linear equation set solving, prediction result obtaining and sub-matrix decomposition method combination model. According to the method, the signal parameters are dynamically adjusted according to the input signal change through the parameter adjusting model, the purpose of adjusting the parameters is to enable the signal decomposition algorithm to better adapt to the signal change, the adaptive signal decomposition can adaptively adjust the decomposition parameters according to the dynamic change of the signal under the real-time requirement of signal processing, and the real-time performance of signal processing is improved. Accurate decomposition of the signal is realized; the dimensionality of the original data is reduced by using the linear independent sub-matrix, and the data volume is reduced; the prediction accuracy of the model in different subspaces is ensured by selecting the full-rank sub-matrixes, noise in original information is effectively removed by selecting the full-rank sub-matrixes, and the prediction performance of the model is improved.

The utility model discloses multi-layer self-adhesive paper with a high-temperature-resistant function, and relates to the technical field of labels. A heat insulation layer covers the bottom paper and comprises a micropore layer, an aerogel felt layer adheres to the micropore layer, the micropore layer is provided with a plurality of heat dissipation holes, the heat dissipation holes are in a honeycomb shape, a plurality of containing grooves are formed in the upper portion of the aerogel felt layer, inner cavities of the containing grooves are filled with aerogel, a bonding layer adheres to the upper portion of the aerogel felt layer, and a top layer adheres to the upper portion of the bonding layer. Connecting paper is arranged on one side of the top layer. According to the utility model, the plurality of heat dissipation holes are formed in the microporous layer and are honeycomb-shaped, so that a large number of air layers and small spaces can be formed in the microporous layer, then the air layers and the small spaces can effectively hinder heat conduction, and air is a poor conductor of heat, so that even in a high-temperature environment, the heat dissipation holes cannot be blocked by the air layers and the small spaces. And the honeycomb-shaped heat dissipation holes can obviously reduce the transmission speed of heat into the microporous layer, so that the heat insulation effect is improved.

The utility model discloses an electric motor car battery heat preservation cabin which comprises a cooling system, a heat preservation cabin body and a heat preservation cabin cover, and the heat preservation cabin body and the heat preservation cabin cover can define a space for containing a battery. An electric heating plate is installed in the heat preservation cabin body, a sealing groove is formed in the top end of the heat preservation cabin body, a hasp is arranged on the outer side of the heat preservation cabin body, a sealing strip is arranged at the bottom end of the heat preservation cabin cover, a hook opposite to the hasp is arranged on the outer side of the heat preservation cabin cover, and when a buckle ring of the hasp is buckled with the hook, the sealing strip is embedded into the sealing groove. The cooling system is installed on the heat preservation cabin body and can provide cooling capacity for the battery. Therefore, the stable operation of the battery in an area with large temperature difference is ensured.

The invention belongs to the technical field of electronic engineering, and particularly relates to a multifunctional MCU automatic detection system, the detection system is used for MCU multi-item detection, the multifunctional MCU automatic detection system comprises an MCU system test platform, a functional environment adjusting module and a computer analysis module, the MCU system test platform is composed of a logic analyzer, an oscilloscope, a placement table and an adapter, and the logic analyzer is connected with the oscilloscope. The oscilloscope is electrically connected with the tested MCU through the adapter, stable connection between the MCU and the MCU system test platform is ensured, the functional environment adjusting module is composed of a temperature regulator, a humidity regulator, a vibration generator and a radiation generator, and more accurate and reliable environment simulation is achieved. The computer analysis module is composed of a test parameter program and a test environment function verification program, control steps are simplified, the automation effect of equipment is improved, the test environment function verification program is used for function detection of the tested MCU in different test environments, and high quality and reliability of products are guaranteed.

The utility model discloses a buffer rack and a stamping system for winding and receiving materials. A rack is provided with a feeding end and a discharging end; the feeding conveying assembly comprises a first conveying roller, a first clamping device and a first pressing roller. The first clamping device drives the first pressing roller to move towards the first conveying roller. The first power device drives the first transmission roller to rotate; the discharging conveying assembly comprises a second power device, a second conveying roller, a second clamping device and a second pressing roller. The second clamping device drives the second pressing roller to move towards the second conveying roller. The second power device drives the second transmission roller to rotate; the first sensor, the second sensor, the third sensor and the fourth sensor are used for detecting the material belt. By the adoption of the scheme, the buffering frame and the stamping system for winding and receiving the materials are provided, the feeding conveying assembly and the discharging conveying assembly are arranged to control conveying of the two sides of the material belt at the controllable speed, and the sensors are arranged to control the conditions of the material belt at the feeding end side and the discharging end side.

The invention discloses a block-based business processing method and a terminal, and the method comprises the steps: generating a corresponding business server according to the business type in a business block, generating a corresponding business block node for the business block, generating a temporary block for the business block node, storing business data in the business block node, and storing the business data in the temporary block. The data transmission speed between the service block node and the service server can be ensured to be determined; and if the transmission information from the user to the service block node does not meet the preset transmission condition, the user data can be cached by utilizing a caching technology, and the corresponding temporary block assists in processing, so that the transmission speed from the user to the service block node is compensated. In this way, the transmission speed from the user to the service block node can be reduced through compensation, the transmission speed from the service block node to the server can also be determined, the influence of external transmission factors on service processing is reduced, and the service processing gap between users is reduced.

The utility model relates to a decorative plate assembly and a partition wall device. The decorative plate assembly comprises a thermal insulation layer; a decorative plate body; the material hardness of the decorative plate body is larger than that of the heat preservation layer. The decorative plate body, the first toughening layer, the heat preservation layer and the second toughening layer are sequentially arranged in a stacked mode in the thickness direction of the heat preservation layer and abut against one another in a matched mode. The heat conductivity coefficient of the heat preservation layer is smaller than that of the first toughening layer, that of the second toughening layer and that of the decorative plate body. According to the decorative plate assembly, the structural strength and the heat preservation performance of the partition wall in the using process can be improved easily.

The utility model relates to the technical field of annealing furnaces, in particular to a large-size chip annealing furnace which comprises a frame and an annealing furnace pipe, and a gas mixing assembly used for utilizing waste heat in the annealing furnace pipe is installed in the frame. The gas mixing assembly comprises a gas mixing tank fixedly connected with the frame, one side of the gas mixing tank communicates with a plurality of three-way valves, the gas mixing tank communicates with the annealing furnace pipe through the three-way valves, a semi-cylinder with one end extending into the three-way valves is arranged in the gas mixing tank, and the end, away from the three-way valves, of the semi-cylinder is fixedly connected with a metal plate. The two sides of the metal plate are fixedly connected with elastic fins, and the elastic fins comprise small fins close to the ends of the semi-cylinders. The technical problems that hot air in an existing annealing furnace is difficult to convert into continuous warm air, then the continuous warm air is conveyed into the annealing furnace for a long time, the air with the proper temperature is continuously blown into the annealing furnace, and the dual purposes of cleaning ash in the annealing furnace and preheating a chip are achieved are solved.

The application discloses a slitting device with dust removal function, which comprises a machine body, a water spraying module, a slitting module and a dust removal module. The machine body is divided into upper and lower shells, and four guide wheels are arranged under the shells. The water spraying module is arranged at the front end of the machine body, a water tank is connected with a water guide pipe through a water pump, the slitting module is connected with a spring suspension at the middle part of the machine body, an oil return system is fixed on the outer wall of the suspension through a platform, an oil pump is connected with an oil tank and a reversing valve, the reversing valve is arranged at the bottom of the platform, the reversing valve is connected with an oil return cylinder and fixed on the side of the platform, the oil return cylinder is connected with the spring suspension, the two oil return cylinders of the oil return system are connected with each other, the oil return cylinder is connected with a clutch, the clutch is connected with an input and output shaft, centrifugal blocks are arranged on the output shaft, the input and output shafts are connected through bevel gears, and a belt drive is arranged between the engine and the bevel gears. The dust removal module is arranged at the end of the machine body, the engine is connected with dust removal blades of the dust removal module through a belt drive, the dust removal blades are fixed in a dust removal tank, and a filter screen is arranged on the dust removal port.

The invention provides a composite safety coating, a positive pole piece, a preparation method and a lithium ion battery, and belongs to the field of lithium ion batteries. Comprising a first safety coating, and slurry of the first safety coating comprises WO3, Sc2O3, a conductive agent and a binder; and the second safety coating covers one surface of the first safety coating, and slurry of the second safety coating comprises a foaming agent and a binder. Firstly, the first safety coating can effectively reduce the risk of short circuit in the battery; secondly, when short circuit occurs in the battery and the temperature rises sharply, the second safety coating forms a heat dissipation channel, so that the temperature accumulation and the heat transfer speed in the battery are effectively reduced, the progress of thermal runaway is delayed, and the influence range of thermal runaway is reduced; finally, through the synergistic effect of the isolation effect of the first safety coating and the thermal runaway protection function of the second safety coating, dual safety guarantee is formed, and the safety performance of the lithium ion battery is remarkably improved.

The utility model relates to the field of plastic meal boxes, in particular to a combined plastic meal box with edges on a bowl body, which comprises an outer bowl body component, a second inner bowl body component movably connected onto the outer bowl body component, a first inner bowl body component movably connected onto the second inner bowl body component, and a sealing cover component movably connected onto the first inner bowl body component, the sealing cover assembly is used for sealing the top end of the first inner bowl body assembly, and the first inner bowl body assembly comprises a first inner bowl body shell movably connected to the second inner bowl body assembly and a first supporting edge connected to the inner wall of the first inner bowl body shell. Through the arrangement of the first supporting edge, the second supporting edge and the third supporting edge, the roughness of the contact surface is increased, the friction force is improved, the slipping risk is reduced, meanwhile, the external force can be dispersed through the supporting edge structure, the probability that the plastic meal box is pressed and deformed is reduced, the contact area between the surfaces of the supporting edges and the hand is reduced, the heat transfer speed can be reduced, and the service life is prolonged. Therefore, the hand scalding feeling is relieved.

The utility model discloses a plug assembly of gate valve and high temperature resistant plug valve thereof, plug assembly of gate valve includes: plug and the sealing assembly of being connected in the plug, the plug has sealing face, and the sealing assembly sets up on sealing face, wherein the sealing assembly includes low heat conductivity support ring. Plug assembly of gate valve and high temperature resistant plug valve thereof of the utility model, its sealing assembly between valve body and plug adopts the combination design of low heat conductivity ceramic ring or PEEK material ring and sealing ring, improves the durability of sealing ring in high temperature environment and reduces heat transfer speed through low heat conductivity support ring, after long time use, and support ring still can provide the supporting force, so that sealing ring can maintain enough sealing property in the closed state of gate valve.

The invention belongs to the technical field of LED chips, and provides a flip LED driving chip and a detection device.The flip LED driving chip comprises an LED chip, a plurality of contact pads are fixedly arranged at the lower end of the LED chip, and convex points are fixedly arranged at the lower ends of the contact pads; the heat-conducting layer is fixedly mounted at the lower end of the LED chip, the thickness of the heat-conducting layer is smaller than that of the contact pad, a plurality of holes are formed in the lower end of the heat-conducting layer, the contact pad penetrates through the holes, and the heat-conducting material of the heat-conducting layer is ceramic; according to the invention, the LED chip is inversely welded on the PCB substrate bonding pad by using the salient points, so that the refraction and reflection loss of light rays in the packaging material can be reduced, more light rays can be directly emitted, the light extraction efficiency is improved, and compared with the traditional normal LED driving chip packaging, because a space does not need to be reserved above the chip for lead bonding, the light extraction efficiency is improved. Therefore, the packaging volume can be obviously reduced, the design of the flip LED chip allows a more compact packaging structure, and the realization of miniaturization and light weight of an LED device is facilitated.

The invention discloses a landing device for a long-voyage manned vertical take-off and landing aircraft, and belongs to the technical field of aircraft buffering devices.The bottom of the aircraft is provided with a landing mechanism, the landing mechanism comprises a fixing block fixedly installed on the inner wall of the aircraft, and a hollow cylinder is fixedly installed on the outer wall of one side of the fixing block; tooth columns are slidably mounted in the hollow cylinders, adjusting blocks are fixedly mounted on the sides, away from the fixing blocks, of the tooth columns, supporting rods are hinged to the bottoms of the fixing blocks and the bottoms of the adjusting blocks correspondingly, the bottoms of the two supporting rods are hinged to the same connecting block, and the connecting blocks are connected with moving wheels. An anti-collision bottom plate is installed on the lower surface of the aircraft, and when the driving structure moves the moving wheels upwards, the lower surface of the anti-collision bottom plate is lower than the lower ends of the moving wheels. Compared with a traditional vtol aircraft, spring damping and sliding rail damping are combined, the anti-collision enclosure is designed, multiple damping of the structure is achieved, and the problems that the unstable phenomenon that a large-weight aircraft jumps up and down during hard landing and the damping effect is poor are reduced to the maximum extent.

The utility model discloses a drying, ventilating and deodorizing device for a livestock breeding shed. The drying, ventilating and deodorizing device comprises a drying, ventilating and deodorizing device body for the livestock breeding shed, a cooling block and an air guide assembly, the drying, ventilating and deodorizing device body comprises a drying, ventilating and deodorizing pipe, an air inlet block, a support frame, a filter plate, a fan and an activated carbon box; the air inlet block is fixedly arranged on an air inlet of the drying, ventilating and deodorizing pipe and is communicated with the drying, ventilating and deodorizing pipe; the plurality of support frames are uniformly and fixedly arranged on the drying, ventilating and deodorizing pipe; the filter plate and the fan are detachably mounted in the drying, ventilating and deodorizing pipe; at least one activated carbon box is detachably mounted in the drying, ventilating and deodorizing pipe, the activated carbon box is of a net-shaped structure, and activated carbon is arranged in the activated carbon box; according to the drying, ventilating and deodorizing device for the livestock breeding house, the structure is simple and reasonable, the design is ingenious, the temperature in the livestock breeding house can be conveniently reduced, growth of livestock is facilitated, and the using effect is good.