6results about How to "Does not affect transmission" patented technology

The application provides a lens module and a laser cutting head, and relates to the field of laser cutting. The lens module comprises a working lens module, a fixed support seat and a temperature field detection module; a temperature sensing surface of the temperature field detection module is arranged towards the working lens module, and the temperature field detection module is configured to monitor the temperature of the working lens. Based on the lens module provided by the application, the application further provides a laser cutting head, wherein the first protective lens module, the collimating lens module, the focusing lens module and the second protective lens module are sequentially arranged in the axial direction of the laser cutting head; and the second protective lens module is close to the nozzle of the laser cutting head. The lens module and the laser cutting head provided by the application can realize the monitoring and feedback of the lens temperature based on the reasonable arrangement of the temperature field detection module, thereby enhancing the safety and reliability of the product, improving the user experience, and assisting data analysis and optimization.

The utility model discloses a kind of multi-nozzle composite extrusion devices with nozzle spacing fine adjustment, it is related to extrusion device technical field, including extrusion assembly and first structural member, the output end side of extrusion assembly is horizontally provided with first structural member, and the side of first structural member close to extrusion assembly is horizontally provided with second adjusting structural member, and the both ends of second adjusting structural member and first structural member are provided with moving member.The multi-nozzle composite extrusion device with nozzle spacing fine adjustment is provided with first structural member, second adjusting structural member, moving member, the combination of the structure of three is used, so that the material extrusion head in the four groups of discharge components connected with it, under the screwing adjustment of bidirectional screw rod, the horizontal vertical spacing between different material extrusion heads is realized micro-adjustment, so as to guarantee the structural flexibility of device, in addition, the structure combination between discharge component and extrusion assembly makes it convenient for operating personnel to split maintenance, provides convenience for operation.

This utility model discloses a cardboard slitting and creasing machine, including a frame. A fixing device is provided on the upper surface of the frame. The fixing device includes a fixing roller. The fixing roller applies pressure to the top of the cardboard to keep the cardboard stable during the slitting and creasing process. This cardboard slitting and creasing machine, through the setting of a processing device, slits the cardboard. A conveyor motor drives a drive rod to rotate. The gear of the rotating rod meshes with the gear of the drive rod, driving the drive rod to rotate. At the same time, it drives a round rod with a cutting wheel to rotate, driving the conveyor roller to rotate synchronously. The synchronous wheel on the outer surface of the drive rod drives a conveyor roller of the conveyor belt to rotate through a synchronous belt, thereby driving the conveyor belt to move. The telescopic rod of the creasing electric push rod is fixedly installed with the fixed frame, driving it to rise and fall. The creasing motor drives the rotating rod to rotate, driving the creasing wheel to rotate. The slitting electric push rod drives the cutter to rise and fall. This application has the effect of creasing and slitting cardboard after it is fixed.

This invention discloses a solar cell and its fabrication method, components, and system. The solar cell includes a silicon substrate, a doped layer and a passivation layer sequentially stacked on the back side of the silicon substrate. The passivation layer has electrode trenches that locally expose the doped layer, and the electrode trenches are provided with a back electrode. The back electrode includes a seed metal silicide layer, a seed metal oxide thin layer, a mixed conductive layer, and an outer metal layer sequentially stacked on the back side of the locally exposed doped layer. The seed metal silicide layer is one or more layers selected from molybdenum silicide, nickel silicide, and titanium silicide layers; the seed metal oxide thin layer is one or more layers selected from molybdenum oxide, nickel oxide, and titanium oxide thin layers; and the thickness of the seed metal oxide thin layer is no greater than 20 nm. This solar cell has a novel electrode structure, which can promote improvements in electrode structure and performance, and reduce costs. The novel electrode structure of this solar cell exhibits good current transport performance and low metal recombination loss.

This invention discloses a broadband absorption structure with independently adjustable polarization frequency, belonging to the field of frequency-selective absorber technology. The structure comprises six alternating layers of ideal conductor PEC frequency-selective surfaces and three layers of F4B dielectric substrate. The frequency-selective surfaces are divided into lossy and lossless arrays. Both types of arrays consist of two orthogonal sublayers arranged in the same manner. All sublayers are printed on the dielectric substrate and isolated from each other by air layers. Both the lossy and lossless arrays integrate varactor diodes for independently controlling the transmission windows of TE-polarized and TM-polarized incident waves. This invention achieves true independent polarization frequency modulation, overcoming the shortcomings of traditional structures that cannot achieve independent polarization characteristics. It allows independent adjustment of the transmission frequencies of TE and TM polarizations without affecting the transmission and control response of cross-polarized waves.

This invention discloses a gearbox, comprising: a housing; a power input shaft and a power output shaft rotatably passing through the housing; a gear set; wherein the gear set is divided into several relatively independent units with different transmission ratios, each unit including an input half-shaft, an output half-shaft, a brake gear, and a brake assembly, the brake gear being coaxially and rotatably fitted onto the output half-shaft, and the brake assembly being used to brake the brake gear of the corresponding unit when the corresponding unit becomes a power output line; a pair of planetary gears, half-shaft gear one, a pair of planetary gears, and half-shaft gear two meshing sequentially. Compared with existing mainstream gearboxes, it can switch output speed gears without a clutch, is less prone to damage, and reduces the jerkiness of gear shifting operations.