9results about How to "Reduce dead area" patented technology

The invention discloses a laser scribing device for a thin-film solar cell. The laser scribing device for the thin-film solar cell comprises a shield assembly, a driving device, a light path assembly, a laser head device and a jig assembly, according to the scheme, the laser scribing device for the thin-film solar cell is used for processing the cell, a thinner wire slot can be generated, the damage is smaller, the dead zone area is reduced, and the conversion efficiency of the cell is further improved. And moreover, the compatible remodeling production requirements of products in a specified size range can be met by replacing or adjusting a tool and a clamp which are in contact with the battery and switching a program.

The utility model discloses a bottom sealing head structure of a heat exchanger, which comprises a cylinder body, and an upper distribution plate is fixedly arranged at the top of the inner side of the cylinder body. According to the bottom sealing head structure of the heat exchanger, an upper distribution plate, a first lower distribution plate and a second lower distribution plate are sequentially and fixedly arranged in a barrel from top to bottom; a plurality of first through holes with the diameter of 16mm, a plurality of second through holes with the diameter of 13mm and a plurality of third through holes with the diameter of 14mm are respectively formed in the middle parts of the upper distribution plate, the first lower distribution plate and the second lower distribution plate, and the plurality of first through holes, the plurality of second through holes and the plurality of third through holes are distributed in a staggered manner; the fluid in the barrel can uniformly flow through the heat exchange area, the situation that the heat exchange efficiency is affected due to uneven local flow speed is avoided, the fluid can be guided to be in a turbulent state, the dead area is reduced, and the heat transfer effect is enhanced.

The present application relates to a silicon-based detector, which designs and processes the p+ injection area of the device without changing the thickness of the substrate, and performs carbon injection, increases the area of generating electron-hole pairs and avalanche effect, thereby increasing the breakdown voltage of the device and improving the anti-radiation performance of the device. In addition, the present application introduces a deep trench ring isolation structure. Compared with the traditional silicon-based detector, the protection ring does not need to be obtained by ion implantation, the influence of the edge electric field on the performance of the device is reduced, and the dead area can be smaller when the array is formed, the integration density is improved, and the detection efficiency is improved. The present application also relates to a preparation method of the silicon-based detector.

The utility model discloses a vertical diving flow pushing device of liftable, and the flow pushing device includes the motor of power output shaft longitudinal arrangement and the impeller of motor drive connection, and the impeller shaft is longitudinally arranged and is located below the motor. The operation platform is installed at the sewage treatment pool upper end port. The lifting frame installed in the sewage treatment pool includes the guide column of longitudinal arrangement, and the guide column lower end is fixed to the pool bottom of sewage treatment pool, and the upper end is installed with the transverse plate. The guide column is located operation platform one side, and the gap is left between operation platform, and is connected with operation platform through the fixed part and is connected with each other. The sliding sleeve of slidingly sleeving on the guide column is arranged on the mounting bracket. The hoisting device for pulling the mounting frame lifting is installed on the transverse plate. The motor drives the impeller rotation, and produces the up and down flow circulation, and forms the three -dimensional circulation in the pool, avoids the flow dead angle, and promotes the uniform fluidization of the filler. Through the regulation impeller height, can adapt to different water depth or filler concentration demand.

The invention provides a photovoltaic cell string, a photovoltaic laminated piece and a photovoltaic module, relates to the technical field of photovoltaic, and aims to solve the technical problem that a photovoltaic cell is poor in reliability on the basis of high power generation efficiency. The photovoltaic cell string comprises an insulating strip, a bus bar, a plurality of electrically connected photovoltaic cells and a plurality of solder strips arranged on the photovoltaic cells, the insulating strip is arranged on the photovoltaic cells, and the bus bar is arranged on the side, away from the photovoltaic cells, of the insulating strip; a plurality of thin grid lines with opposite polarities are arranged on the back surface of the photovoltaic battery piece, and the plurality of thin grid lines with opposite polarities are connected with the plurality of welding strips in a one-to-one correspondence manner; the insulating strip is provided with a plurality of first through holes, each welding strip connected with one of the thin grid lines with the same polarity in the plurality of welding strips is provided with a lug boss, and each lug boss penetrates through the corresponding first through hole and is connected with the bus bar; and each of the plurality of solder strips connected with the other type of homopolar fine grid line is electrically isolated from the bus bar through an insulating strip. The photovoltaic cell string can ensure the connection reliability between the bus bar and the solder strip.

The utility model belongs to the technical field of beam limiting devices, and particularly relates to a shielding assembly for a speed limiter and an adjustable shielding device. The fixed lead window comprises a fixed bracket and a rounded rectangular lead window, and a rectangular opening is formed in the lead window; the aperture adjusting part comprises a base and a pressing ring, an annular groove is formed in the base, a rotatable rotating disc is arranged in the annular groove, the pressing ring is used for abutting the rotating disc into the annular groove, a plurality of radial sliding grooves are formed in the rotating disc, and a plurality of shielding blades stacked layer by layer are arranged between the rotating disc and the base. The upper ends and the lower ends of the shielding blades are hinged to the rotating disc and the base through upper pin shafts and lower pin shafts respectively, the upper pin shafts are slidably installed in the radial sliding grooves, the rotating disc is rotated so that the upper pin shafts can slide in the radial sliding grooves in the direction close to or away from the center of the rotating disc, and the upper ends of the shielding blades are driven to be close to or away from each other. The shielding range of the shielding blade is adjusted; the shielding efficiency, the shielding utilization rate and the imaging quality of the beam limiting device are improved.

In an APD array 1, a plurality of APDs 15 include a first semiconductor layer 21, a plurality of second semiconductor layers 22, and a multiplication layer 40. The first semiconductor layer 21 is provided closer to the second surface 12 than a semiconductor region 20. The plurality of second semiconductor layers 22 are arranged along a first surface 11. The multiplication layer 40 is provided within the semiconductor region 20 and provided between the plurality of second semiconductor layers 22 and the first semiconductor layer 21 in a direction perpendicular to the first surface 11. Each of a third semiconductor layer 23 and a fourth semiconductor layer 24 of the multiplication layer 40 is continuously provided so as to overlap the plurality of second semiconductor layers 22 when viewed in the direction perpendicular to the first surface 11. The third semiconductor layer 23 is provided closer to the first surface 11 than the fourth semiconductor layer 24.

The invention relates to an air preheater adopting wing streamline pipes, and belongs to the technical field of heat exchange equipment. Comprising a shell, an air tube box, an air inlet, an air outlet, a flue gas inlet, a flue gas outlet, two wing streamline tube bundles and two tube plates. The air inlet is formed in the upper portion of the front wall of the shell. The air outlet is formed below the front wall of the shell; the air pipe box is arranged on the rear wall of the shell; one tube plate is arranged at the air inlet; the other tube plate is arranged at the air outlet; each tube plate is correspondingly provided with one wing streamline tube bundle; the two wing streamline tube bundles are axially and horizontally arranged up and down; the inlet end of the upper wing streamline tube bundle is aligned with the air inlet, and the outlet end is butted with the air tube box; the inlet end of the lower wing streamline tube bundle is butted with the air tube box, and the outlet end is aligned with the air outlet; the flue gas inlet is formed in the bottom of the shell; the flue gas outlet is formed in the top of the shell; the problems of low heat exchange efficiency and large resistance in the prior art are solved.

The present disclosure relates to a display device, and more particularly, to a display device capable of reducing or minimizing a dead zone area. According to one or more embodiments of the present disclosure, a display device includes a substrate having a display area and a non-display area, a signal transfer line including a signal line in the display area of the substrate and a fan-out line extending from the signal line and in the non-display area of the substrate, and a plurality of pixels in the display area of the substrate, the plurality of signal transmission lines include signal transmission lines and are respectively connected to the plurality of pixels, and the plurality of signal transmission lines are on different layers on the substrate.