92results about How to "Extend the distribution path" patented technology

The utility model relates to the technical field of heat supply, and provides a heat exchange device for a heat supply system. The heat exchange tube group is arranged in the shell; the turbulent flow assembly is rotationally arranged in the shell and located on the outer side of the heat exchange tube set; and the scraping plate is arranged on the heat exchange tube set in a sliding mode, the scraping plate is in transmission connection with the turbulent flow assembly, and when the turbulent flow assembly rotates along the inner wall of the shell, the scraping plate moves along the outer wall of the heat exchange tube set. By means of the technical scheme, the problems that in the prior art, in order to guarantee normal work of a heat exchange device, the heat exchange device needs to be completely disassembled, impurities and scale in a pipeline of the heat exchange device need to be cleaned up, the cleaning steps are tedious, and manpower and material resources are consumed are solved.

The invention discloses a rate division multiple access communication network total rate optimization method and system, and belongs to the technical field of communication. The method comprises the following steps: constructing a downlink rate segmentation multiple access communication system model based on an intelligent reflecting surface; the communication system model comprises a base station, an intelligent reflecting surface and a user side; grouping users in the user side, and constructing a hierarchical rate segmentation multiple access model based on user grouping; the hierarchical rate segmentation multiple access model comprises a corresponding relation between the user group and information flow generated by the base station; and according to the hierarchical rate segmentation multiple access model and the intelligent reflecting surface, assisting downlink communication between the base station and the user side. According to the method and the device, the layered rate division multiple access model is constructed by grouping the users, and the system performance is improved by combining the intelligent reflecting surface passive beam forming and the rate division multiple access active beam forming, so that the problems of spectrum resource shortage and signal interference can be solved, and the spectrum efficiency is greatly improved.

The embodiment of the invention provides a vehicle-mounted device and an electric vehicle, the vehicle-mounted device comprises at least one of a vehicle-mounted charger or a motor controller, a shell of the vehicle-mounted device comprises an integrated shell and an electrical cover plate, the integrated shell comprises an electrical containing groove, and the electrical cover plate is used for enclosing the electrical containing groove. Wherein the electrical containing groove is used for containing the integrated support and the first circuit board, the groove bottom of the electrical containing groove is used for fixing the integrated support, the first circuit board is used for bearing at least one electrical assembly in the vehicle-mounted charger or the motor controller, and the integrated support is used for fixing and cooling the at least one electrical assembly in the vehicle-mounted charger or the motor controller. The integrated supports are arranged between the first circuit board and the bottom of the electrical containing groove.

The utility model relates to a denitration rotational flow vortex street ammonia-air mixer, which comprises a main pipeline, a vortex street ammonia-air mixer, a gas inlet pipe, a gas outlet pipe, a gas inlet pipe and a gas outlet pipe, one end of the ammonia pipeline is connected with the side wall of the main pipeline and is close to the air input end of the main pipeline; the vortex street turbulent flow columns are arranged in the main pipeline and are sequentially arranged at intervals in the axial direction of the main pipeline, the section of each vortex street turbulent flow column is in a V shape, the vertex angle of each vortex street turbulent flow column faces the air input end of the main pipeline, a swirl vane is arranged between every two adjacent vortex street turbulent flow columns, and the swirl vanes can rotate around the axis of the main pipeline; and the cyclone blades are driven to rotate through airflow. Ammonia gas and air can be fully mixed in a short distance, the mixed gas passes through the Karman vortex street generated by the last vortex street turbulent flow column and continues to use the flowing space in the airflow pipeline connected with the rear end of the main pipeline, and the mixing distance of the ammonia gas and the air is prolonged on the premise that the length of the main pipeline is not increased; the length of the whole mixer is shortened while the mixing effect is ensured.

The invention provides a heat recovery device of an air preheater, relates to the field of heat recovery of air preheaters, and aims to solve the problems of flue gas heat loss and insufficient heat recovery in the prior art. The device comprises an air preheater body, a flue gas filter, a fan, a preheating outer frame body, a heat preservation shell plate and the like. The air preheater body is provided with an air inlet pipe opening, an air outlet pipe opening and a heat exchange cavity, and a two-stage filter screen plate of the flue gas filter ensures that the flue gas is clean. The fan drives the spiral blades to make smoke flow spirally, and the circulation path is increased. A spiral liquid guide channel of the preheating outer frame body is communicated with a heat exchange pipeline, and heat exchange between water and smoke and heat exchange between the water and the smoke and the outer shell body are achieved through a booster pump. The heat preservation shell plate reduces heat loss. All the components work cooperatively, heat loss of the shell is effectively reduced, heat recovery efficiency is improved, and the heat exchanger is suitable for the fields of industrial boilers and the like and has remarkable energy-saving and environment-friendly significance.

The invention belongs to the technical field of distributed account books, and particularly relates to a performance optimization method of a distributed account book system, which comprises the following steps: step 1, node architecture optimization: improving the processing capacity, memory and storage of nodes, reasonably configuring the load of the nodes, and avoiding overload of some nodes; and step 2, consensus algorithm improvement: the workload proof is converted to the right proof or other more efficient consensus mechanism, and the communication complexity and the calculation amount in the consensus process are reduced. According to the distributed account book system, the performance, the efficiency and the safety of the distributed account book system can be comprehensively improved by improving the node performance, improving the consensus algorithm, optimizing the transaction processing and the network layer, saving the storage space, improving the intelligent contract, simplifying the protocol layer and considering the safety and the performance balance at the same time, and the more efficient and reliable distributed account book system is provided for users.

The application provides a water turbine runner blade laser cladding repair device. The water turbine runner blade laser cladding repair device comprises a vehicle body, a support fixedly installed on the vehicle body, a U-shaped frame fixedly installed on the support, a laser cladding repair mechanism located on one side of the U-shaped frame and used for laser cladding repair of the water turbine runner blade, a height adjusting mechanism arranged on the U-shaped frame and used for adjusting the height of the laser cladding repair mechanism, a cooling mechanism installed on the U-shaped frame and used for cooling the laser cladding repair mechanism, and a storable moving mechanism arranged on the inner wall of the vehicle body and used for driving the device to move. The water turbine runner blade laser cladding repair device has the advantages of efficient cooling function of the cladding head, convenient movement, and the ability to repair blades installed at different heights and at different installation angles.

This application relates to the field of new energy battery pack technology, and in particular to a liquid-cooled battery module, including a liquid-cooled tray and a battery pack with the liquid-cooled tray. The liquid-cooled tray includes a liquid-cooled plate, which has a liquid-cooled cavity. The liquid-cooled cavity is provided with several liquid-cooled baffles, which divide the liquid-cooled cavity into several interconnected flow equalization and distribution sections. The liquid-cooled plate is provided with a sealing plate assembly, a liquid inlet assembly, and a liquid outlet assembly. The liquid inlet assembly includes a metal liquid inlet pipe and a liquid inlet connector connected to the liquid-cooled cavity. The liquid outlet assembly includes a metal liquid outlet pipe and a liquid outlet connector connected to the liquid-cooled cavity. The liquid inlet assembly and the liquid outlet assembly are located on the same side along the length of the liquid-cooled plate. The liquid-cooled baffles effectively extend the flow path of the coolant, thereby increasing the heat exchange time between the coolant and the battery cell. At the same time, it avoids the use of plastic pipes, effectively simplifies the installation steps, reduces leakage, and improves the stability of the battery module.

The utility model discloses an LED luminous tube which comprises an inner injection molding body, an outer injection molding body, a metal support, an LED luminous chip and packaging glue. The outer injection molding body wraps the outer side of the inner injection molding body, and a light-emitting cavity is formed between the outer injection molding body and the inner injection molding body; the metal support is embedded in the inner injection molding body and extends to the outer side of the outer injection molding body to form a first welding leg and a second welding leg, and the extending direction of the first welding leg is perpendicular to the extending direction of the second welding leg. The LED light-emitting chip is installed on the metal support and located in the light-emitting cavity. And the packaging glue is filled in the light-emitting cavity. The light-emitting cavity is formed by the inner injection molding body and the outer injection molding body, a stable installation environment is provided for the LED light-emitting chip, meanwhile, the light-emitting cavity is filled with the packaging glue, the propagation path of light is optimized, and the light-emitting efficiency is improved. According to the design, the layout of electrical connection is optimized, meanwhile, the welding reliability is remarkably improved, and the problems of pseudo soldering, unsoldering and the like are prevented.

The utility model relates to the technical field of LED packaging, in particular to a side-emitting multi-color integrated LED packaging structure, which comprises a ceramic substrate provided with a common-anode RGBW chip group. The RGBW chip set is directly welded on the ceramic substrate by adopting a flip chip design, the overall thickness of the packaging structure is less than or equal to 1.2 mm, the RGBW chip set is matched with preset solder paste below the RGBW chip set to be mounted on a bonding pad, the RGBW chip set is directly welded on the ceramic substrate by adopting the flip chip design, technologies such as gold wire bonding and matching with a film pasting technology are abandoned, and the packaging structure is simple in structure, convenient to manufacture and high in packaging efficiency. The overall thickness of the packaging structure is smaller than or equal to 1.2 mm, the packaging thickness is greatly reduced, the packaging structure can perfectly adapt to ultrathin application scenes such as side-entry backlight, the problem in the aspect of ultra-thinness in the traditional technology is effectively solved, the number of bonding pads is reduced to five by adopting the design that RGBW four-in-one chips share the anode / cathode, the anodes of the RGBW chips are connected in parallel, and the thickness of the packaging structure is greatly reduced. Only one common bonding pad and four independent bonding pads are needed, and the problem that bonding pad wiring is complex in the prior art is solved.

The present invention provides a nanostructure for enhancing the nonlinear luminescence performance of perovskite and a preparation method thereof, comprising a luminescent layer and a substrate arranged in sequence from top to bottom, wherein the luminescent layer of the upper layer is composed of a plurality of independent perovskite nanostructure arrays, and each perovskite nanostructure is a mixture of a transparent high molecular polymer and perovskite. With only a few simple steps, a large-scale nano pattern can be obtained, which has the advantages of low price, easy processing, large-area preparation, etc. In addition, the nanostructure enables the perovskite to obtain an enhanced electromagnetic field, improves the nonlinear optical performance of the perovskite, and lays an important foundation for optoelectronic applications based on micro-nanostructure perovskites.

This utility model relates to the field of valve technology, and in particular to a two-way valve and an explosion-proof valve. The two-way valve provided by this utility model includes a housing and a fixed base forming an air exchange channel, and a first movable member and a second movable member. At least a portion of the first movable member passes through the second movable member and extends into the fixed base. The first movable member is axially movable relative to the second movable member and the fixed base. When the first movable member moves in a first direction, the air outlet channel communicates with a first gap. When the first movable member pushes the second movable member to move in a second direction, the air inlet channel communicates with the first gap. The movement of the first movable member within the air exchange channel forms separate air outlet and air inlet channels, precisely controlling the airflow direction, avoiding turbulence and backflow, improving exhaust efficiency, and adapting to airflow pressure requirements in different directions.

The utility model provides a thermoinduction adjustable corrugated packing, which relates to the technical field of chemical packing and comprises a corrugated packing layer and a limit ring seat, the corrugated packing layer comprises temperature sensing material wires and a positioning ring, and the temperature sensing material wires are respectively arrayed in two mutually perpendicular directions of the positioning ring. A plurality of corrugated packing layers are arranged in the limiting ring base in the vertical direction, a positioning screw ring is arranged on the top face of the limiting ring base, the multiple sets of corrugated packing layers with staggered angles are used, the circulation path between the adjacent corrugated packing layers is increased, and the temperature sensing effect is improved. The temperature sensing material wires woven in the warp and weft mode are arranged in the corrugated packing layer to sense the temperature, when the temperature rises, the temperature sensing material wires expand, the overall density of the corrugated packing layer is increased, the gas retention time is prolonged, the gas contact area is increased, the pore diameter density of the whole corrugated packing layer can be controlled according to the temperature, and adaptability is high; and rapid gas separation is facilitated.

The utility model relates to the technical field of laser radars, in particular to a laser radar, which comprises a base. The rotating assembly comprises a rotating supporting table and a driving assembly, and the driving end of the driving assembly is in driving connection with the rotating supporting table; the transmitting assembly comprises a laser and a laser alignment mechanism, and the laser alignment mechanism is fixedly arranged on the rotary supporting table; the laser is fixedly connected with the base and is arranged at the incident end of the laser alignment mechanism; the receiving assembly comprises a receiving lens for receiving reflected light of the detected object, the receiving lens is fixedly arranged on the rotary supporting table, and the receiving lens, the laser alignment mechanism and the rotary supporting table can rotate cooperatively; according to the utility model, the light emitted by the laser device is propagated according to the preset propagation path and is emitted by the emergent end of the laser alignment mechanism, so that the light propagation path is optimized, the light emitted by the laser device is limited in a certain range, and meanwhile, the problem of a scanning blind area in a short distance is avoided.

This invention relates to a low-noise optical module three-temperature testing device, comprising a test box with a test cavity formed inside. An air inlet pipe is connected to the test box and communicates with the test cavity. A first silencing cavity is also formed inside the test box, and a first exhaust channel communicating with the first silencing cavity is provided on the test box. A duct is also connected to the test box, connecting the test cavity and the first silencing cavity. By setting up the first silencing cavity and connecting it to the test cavity via the duct, this invention not only extends the gas flow path within the test box and serves to store airflow, but also significantly increases the gas flow area and the diffuse reflection area and number of reflections within the test box, thereby reducing gas velocity and noise energy, achieving noise reduction. The test cavity-duct-first silencing cavity can form a Venturi effect, resulting in better noise reduction.

The invention provides a display panel and a preparation method thereof. The problem that in the prior art, large-viewing-angle light of a display panel is lost or power consumption of the display panel is high is solved. The display panel includes: a substrate; the light-emitting device is positioned on one side of the substrate; the color conversion layer is located on the side, away from the substrate, of the light-emitting device, the orthographic projection of the color conversion layer on the substrate and the orthographic projection of the light-emitting device on the substrate are at least partially overlapped, the color conversion layer comprises a central area and an edge area surrounding the central area, and the color conversion layer comprises a first light condensation unit located in the edge area. The first condensation unit is arranged in the edge area of the color conversion layer, so that large-viewing-angle light rays projected to the color conversion layer by the light emitting device can be gathered, the utilization rate of the large-viewing-angle light rays is improved, and the power consumption of the display panel can be reduced.

The invention discloses a wood carbon aerogel electromagnetic shielding material loaded with magnetic iron-cobalt nanoparticles and a preparation method of the wood carbon aerogel electromagnetic shielding material. The electromagnetic shielding material is of a multi-stage directional pore channel structure, and meanwhile, the magnetic iron-cobalt nanoparticles are uniformly distributed on the inner wall of a pore channel; the surface of the electromagnetic shielding material is rough, more heterogeneous interfaces can be generated, and dielectric loss of electromagnetic waves is facilitated. The multi-stage directional pore channel structure has excellent conductivity, dielectric property and magnetic property, so that the composite material can optimize the propagation path of electromagnetic waves and shows various electromagnetic wave loss mechanisms. The invention aims to realize uniform dispersion and loading of the magnetic metal nanoparticles in the oriented porous wood carbon-based material, so that the problems of complex interface regulation, insufficient pores, high manufacturing cost and the like of the traditional carbon-based magnetic composite material are solved.

The utility model belongs to the field of material dispersion equipment, and particularly relates to a sectional type cooling dispersion machine which comprises a dispersion barrel, a driving device, a rotating shaft, a dispersion wheel and a cooling device, the dispersing wheels are sequentially arranged at intervals in the axial direction of the rotating shaft, and the driving device is connected with the rotating shaft and drives the dispersing wheels to rotate in the dispersing barrel through the rotating shaft; a plurality of independent cooling devices at intervals are arranged in the dispersing barrel in the axial direction of the rotating shaft, each dispersing wheel is correspondingly provided with one cooling device, and the dispersing wheels are adjacent to the cooling devices. The sectional type cooling dispersion machine can further improve the dispersion effect of materials, and a cooling device is arranged on each dispersion wheel to form a multi-section type cooling structure, so that the cooling effect is further improved.

The utility model discloses a gas-liquid separation device for portable oxygen production equipment, which comprises a gas-liquid separation pipe, a gas pump, a first gas filter, a one-way check valve, a water pump and a controller, the gas-liquid separation pipe is provided with a partition plate, and the partition plate divides an inner cavity of the gas-liquid separation pipe into a U-shaped cavity; an inlet and an air outlet are formed in the upper portions of the two ends, located on the U-shaped cavity, of the gas-liquid separation pipe respectively, a liquid outlet is formed in the bottom, the inlet is connected with a gas-liquid outlet of an electrolysis water tank of the portable oxygen generation equipment, the air outlet is connected with a first gas filter through an air pump to output airflow, and the liquid outlet is sequentially connected with a one-way check valve and a water pump. An outlet of the water pump is connected to a liquid inlet of the electrolysis water tank, a semiconductor chilling plate is arranged on the partition plate, the refrigeration side of the semiconductor chilling plate faces the inlet side of the U-shaped cavity, the heat dissipation side of the semiconductor chilling plate faces the air outlet side of the U-shaped cavity, and the controller is used for controlling work of the air pump, the water pump and the semiconductor chilling plate. The gas-liquid separator is good in gas-liquid separation effect and stable in gas flow.

This utility model relates to the field of lighting technology, and more particularly to a ceiling light, including a top panel, a lens, a back panel, a lamp panel, a mounting plate, and an optional battery. The top panel is formed by a cavity enclosed by a circular base plate and annular side plates. The base plate has a recessed portion to accommodate the lens, which is fixed by a ring rib and a positioning groove and glued to improve light efficiency and sealing. Symmetrical positioning parts are provided on the inner side of the base plate, which, together with the back plate, achieve horizontal and vertical positioning of the lamp panel, eliminating the need for independent elastic buckles and simplifying the mold design. The back plate is fixed to the top panel by a glue groove, elastic buckles, and the top panel, allowing for flexible switching of protection levels. The cable is clamped and fixed by the slots of the back plate and the base plate, avoiding the need for additional tail clips. The communication indicator light of the lamp panel corresponds to a thin-walled hole in the recessed portion of the base plate, and the thin-walled hole is designed to resist impact. The mounting plate is detachable and installable by a spring clip and a snap-fit ​​structure, facilitating ceiling installation. This ceiling light has an optimized structure, is easy to assemble, improves light efficiency and protection performance, reduces costs, and is suitable for various scenarios.

The present invention relates to the field of geothermal energy technology, and its purpose is to provide a geothermal extraction device. This geothermal extraction device can extend the cold water heating time so that it can extract more geothermal energy, and the geothermal energy extraction efficiency is high. The above-mentioned geothermal extraction device includes: a mounting seat, a heat exchange component, a water pipe component and a plurality of heat conduction components; the heat exchange component is arranged in the mounting seat, which includes a plurality of spiral heat exchange tubes arranged in sequence from the inside to the outside, and two adjacent spiral heat exchange tubes are connected; the water pipe component includes an inlet pipe and an outlet pipe, the inlet pipe is connected to the outermost spiral heat exchange tube, and the outlet pipe is connected to the innermost spiral heat exchange tube; a plurality of heat conduction components are arranged on the mounting seat at intervals along the circumference of the mounting seat, and the heat conduction part of the heat conduction component is located on the outside of the mounting seat, and the heat exchange part is located on the inside of the mounting seat. The present invention solves the problem that the heating time of cold water in the device is short, the heat carried after heat exchange is relatively small, and the extraction efficiency of geothermal energy is low in the geothermal extraction device in the prior art.

The utility model discloses a temperature control formula gasification mixing device, including water bath box, be provided with liquid inlet cavity and gas outlet cavity in water bath box, the connecting pipeline mechanism between liquid inlet cavity with gas outlet cavity, the pipeline mechanism includes a plurality of side by side arrangement's circuitous pipeline, every circuitous pipeline all is provided with mixing structure in each. The utility model aims at providing a temperature control formula gasification mixing device, and its purpose is to solve the problem of existing technology that liquefied gas gasification is not sufficient, mixes uneven and is influenced by the problem of greater environmental temperature. Through the integration temperature control system and mixing mechanism, the device ensures that liquefied gas obtains stable and sufficient heating in the gasification process, thereby realizing the uniform mixing of methane and butane. In addition, the introduction of temperature control system makes the gasification process no longer be restricted by environmental temperature fluctuation, and can maintain efficient and stable working condition under various conditions.

The utility model discloses a boat structure, which comprises a supporting frame body and a plurality of supporting pieces fixedly arranged on the supporting frame body and arranged in a linear array, a bearing gap for accommodating a wafer is arranged between two adjacent supporting pieces, and the bearing gap comprises a mounting gap and a flow expanding gap. According to the boat structure, the flow expansion gaps are further arranged in the bearing gaps on the supporting frame body, and the center distance between adjacent wafers is increased, so that the circulation path of process gas is prolonged, the contact time of the process gas and the wafers is prolonged, the local gas concentration difference is reduced, the diffusion of the process gas is more uniform, and the yield of the wafer is improved. And the oxidation uniformity can be effectively improved by further reacting with the wafer, and the surface processing quality of the wafer is improved.

The utility model relates to the technical field of workshop purification, and discloses an ozone sterilization technology for a dust-free workshop, which comprises a disinfection box, a disinfection cavity and a mixing cavity are arranged in the disinfection box, the disinfection cavity is connected with an ozone generator, four side walls of the disinfection cavity are respectively communicated with a connecting pipe, the end part of the connecting pipe is connected with an exhaust fan, and the exhaust fan is connected with an air inlet pipe. The end part of the air inlet pipe is connected with an air inlet cylinder; the mixing cavity is located at the top of the disinfection cavity and communicated with the disinfection cavity through a circulation opening, the circulation opening is formed in the center of the bottom of the mixing cavity, a plurality of check rings are evenly arranged on the mixing cavity around the circulation opening, and the check rings are alternately arranged at the top and the bottom of the mixing cavity and used for prolonging the circulation path of gas; a filtering cavity is formed in the bottom of the disinfection cavity, and the four side walls of the mixing cavity are connected with the side wall of the top of the filtering cavity through air return pipes correspondingly. According to the utility model, the air in the workshop can be effectively disinfected and sterilized, and the residual ozone can be effectively treated.

The invention relates to an electromagnetic valve, an oil sprayer, an engine and a vehicle. The electromagnetic valve comprises a magnetic core and an armature, and the magnetic core is provided with an inner hole; the armature comprises a guide part and a tail part, the guide part is assembled in the inner hole and can move in the axial direction relative to the magnetic core, and the tail part is located on one side of the axial direction of the magnetic core and connected with the guide part; at least one of the magnetic core and the tail part is provided with a slot, and the slot is used for increasing a circulation path for sensing eddy current. The electromagnetic valve can solve the problems that in the prior art, the control precision of opening and closing of a needle valve of an oil injector is low, and consumed time is long.

The utility model discloses a three-dimensional honeycomb structure for a direct-current blowing type low-speed wind tunnel, which comprises a honeycomb body, the incoming flow side of the honeycomb body is a concave curved surface, and the outgoing flow side of the honeycomb body is a plane. On the basis of a traditional honeycomb device, the concave curved surface is designed on the incoming flow side of the honeycomb device, the shape and the size of the concave curved surface can be adjusted according to actual requirements, meanwhile, other optimization design can be combined, the flow characteristic of airflow in the honeycomb device can be effectively improved, the uniformity and the stability of a flow field are improved, and the honeycomb device is suitable for being used for a large-scale honeycomb device. Therefore, experimental results are more accurate and reliable, the method can be widely applied to the fields of low-speed wind tunnels and the like, and a more efficient and more accurate airflow control and flow field uniformity improvement scheme is provided for experimental research.

The utility model relates to the technical field of fused salt electric heaters, and provides a fused salt electric heater which comprises a heating tube bundle, a wiring bin, a flange plate and a cooling bin. The upper end of the heating tube bundle is fixedly connected with the wiring bin; the wiring bin is used for connecting an external power line or control line with the heating tube bundle; the flange plate is provided with penetrating holes corresponding to pipe bodies in the heating pipe bundle, the pipe bodies in the heating pipe bundle penetrate through the flange plate and are fixedly connected with the flange plate, and the flange plate is used for fixing the fused salt electric heater to the top of a fused salt tank. The cooling bin is arranged between the wiring bin and the flange plate, pipe bodies in the heating pipe bundle penetrate through the cooling bin, the cooling bin is provided with a water inlet and a water outlet, and the cooling bin is used for cooling the part, exposed out of the molten salt tank, of the heating pipe bundle. Through the arrangement of the cooling bin, on one hand, the exposed part of the heating tube bundle is cooled, the risk of overheating damage of the wiring bin is further reduced, and on the other hand, heat lost from the exposed part of the heating tube bundle can be utilized.

The embodiment of the invention provides a packaging structure and a packaging device, relates to the technical field of semiconductor packaging, and aims to solve the problem of non-uniform wiring thickness in a metal wiring layer in the prior art. The packaging structure comprises a substrate, an auxiliary electrode layer located on the substrate, a dielectric layer located on the auxiliary electrode layer, and a metal wiring layer located on the dielectric layer. Wherein the auxiliary electrode layer comprises an auxiliary electrode, the metal wiring layer comprises a metal wire, the metal wire comprises a seed metal layer and a growth metal layer, the seed metal layer is electrically connected with the auxiliary electrode through a via hole in the dielectric layer, and the growth metal layer is electrically connected with the seed metal layer. The auxiliary electrode is used for providing auxiliary cathode voltage for the seed metal layer in the growth process of the growth metal layer.

This application discloses a perovskite / crystalline silicon tandem solar cell, belonging to the field of solar cell technology. The perovskite / crystalline silicon tandem solar cell includes a perovskite layer, a buffer layer, an intermediate interconnect layer, a crystalline silicon layer, a first metal grid electrode, and a heat-dissipating optical reflective layer. The buffer layer, comprising a thermoplastic resin, is stacked on one side of the perovskite layer. The intermediate interconnect layer is stacked on the side of the buffer layer opposite to the perovskite layer. The crystalline silicon layer is stacked on the side of the intermediate interconnect layer opposite to the buffer layer. The first metal grid electrode is stacked on the side of the crystalline silicon layer opposite to the intermediate interconnect layer. The heat-dissipating optical reflective layer is disposed on the side of the first metal grid electrode opposite to the crystalline silicon layer and is at least partially embedded in the grid of the first metal grid electrode. The heat-dissipating optical reflective layer comprises graphene and boron nitride. This application can improve the photoelectric output capability, thermal stability, and long-term operational reliability of the perovskite / crystalline silicon tandem solar cell.

The invention provides a lateral light guide optical fiber and an optical imaging mechanism with the same, the lateral light guide optical fiber comprises a first optical fiber, two ends of the first optical fiber are a light source end and an emergent end respectively, the light source end is used for receiving an external light source, and a fiber core and a first cladding guide the external light source from the light source end to the emergent end in an internal reflection mode. An included angle is formed between the first inclined plane and the extension direction of the first optical fiber, a second cladding is arranged on the surface of the first inclined plane, and a third cladding is arranged on the surface of the side, opposite to the first inclined plane, of the first optical fiber, so that light reflected by the interface of the fiber core and the second cladding is irradiated outwards through the interface of the fiber core and the third cladding. According to the scheme provided by the invention, the emission angle of the light beam is optimized through the inclined plane design, the adjustment of the light output angle and intensity can be realized, the light signal intensity of the received light is ensured, and greater design freedom degree and flexibility are provided, so that the light source can better meet the requirement of detecting the detected tissue.