14results about How to "Reduce shading area" patented technology

The embodiment of the utility model discloses a solar cell, a cell assembly and a photovoltaic system. The solar cell comprises a silicon substrate and an electrode arranged on one side of the silicon substrate, and the electrode comprises a seed layer, a first metal layer and a second metal layer which are sequentially stacked in the direction away from the silicon substrate; the width of the first metal layer is larger than that of the seed layer in the width direction of the electrode. According to the embodiment of the utility model, the photoelectric conversion efficiency of the solar cell can be improved.

The invention discloses a vehicle and a method for controlling the vehicle, and relates to the technical field of automobiles. One specific implementation mode of the vehicle comprises the steps that an eyeball tracking camera obtains the current sight line of a driver and sends the current sight line; the vehicle camera is mounted on the outer side of the vehicle A column and is used for collecting and sending an external image of a visual blind area of the vehicle A column; the electronic control unit recognizes an obstacle based on the external image, and sends a folding instruction to the control motor of the vehicle A column when it is predicted that the future sight of the driver is shielded by the vehicle A column according to the current sight; and the control motor responds to the folding instruction and controls the multiple connecting rod structures to be folded in the width direction of the vehicle A column, so that an unshielded light path is formed between the future sight line of a driver and an obstacle. According to the embodiment, the shielding area of the sight of a driver can be reduced by adjusting the width of the vehicle A column.

The present disclosure relates to the field of photovoltaics, and provides a photovoltaic module which can at least improve the connection reliability of the cell and the solder strip, improve the performance of the photovoltaic module, and save the preparation cost of the photovoltaic module. The photovoltaic module comprises a plurality of cell strings, each cell string comprising a plurality of cell pieces arranged along a first direction and a solder strip electrically connecting adjacent cell pieces, each cell piece having a first busbar extending along a second direction, the solder strip being electrically connected to the first busbar, and the plurality of cell pieces comprising a first cell piece and a second cell piece adjacent to each other, the second cell piece being overlapped on the first cell piece. The photovoltaic module further comprises a buffer piece located on the overlapping area of the first cell piece and the second cell piece, and at least part of the buffer piece is located between the first cell piece and the solder strip; wherein, on the first cell piece, the first busbar close to the buffer piece comprises a first part and a second part in electrical contact with the solder strip, and in the first direction, the width of the second part is greater than the width of the first busbar away from the buffer piece.

The utility model provides a kind of high-resolution and light efficiency optimization type display array substrate, by optimizing metal layer wiring, i.e., gate signal line is arranged in third metal layer and is vertically overlapped with TFT gate, reduces light shielding area;Touch signal line is moved to first metal layer, improves touch signal-to-noise ratio, and data signal line is additionally provided in first metal layer, and the data signal line of second metal layer is equipotential, forms double-layer data line driving structure design, without increasing metal layer thickness, metal line width, metal material and the like, data line impedance can be reduced to original half substantially, effectively improves IC driving capability, can support 8K resolution driving at most, breaks through the problem that S-IC driving capability is insufficient due to data line load improvement under high-resolution panel dual Gate driving design.

The invention relates to the field of photovoltaic module manufacturing, in particular to an insulating glue printing screen plate for a back contact solar cell and a using method thereof.The insulating glue printing screen plate comprises a plurality of discontinuous insulating glue printing units distributed in the extending direction of a main grid, and interval areas without printing patterns are arranged between every two adjacent insulating glue printing units; forming a sectional insulating glue layer on the surface of the battery piece in the silk-screen printing process; wherein the insulating glue printing unit corresponds to an electrical isolation area on the battery piece. The solar cell can reduce the using amount of insulation paste, reduce the warping problem of the cell, reduce the back shading area, improve the double-sided rate, gain back power generation and reduce the cost.

This invention relates to the field of antenna protection technology, and more particularly to an easy-to-install antenna protective cover. It includes: a base with a rubber pad embedded in its lower part; a protective shell rotatably connected to the base; symmetrically distributed first ventilation openings on the lower part of the protective shell; a guide rod fixed inside the protective shell; and symmetrically distributed first and second baffles slidably connected to the guide rod; a winding frame rotatably connected inside the protective shell; and a winding wheel located below the winding frame. Connecting ropes are provided between the first baffles and the winding frame, and between the second baffle and the winding wheel. This invention, by adjusting the positions of the first and second baffles, allows the gas inside the protective shell to exchange with the outside environment when the external wind speed is low. This allows the flowing gas to carry away the heat generated by the antenna, ensuring the normal operation of the antenna.

The utility model discloses an antenna installation technical field's a kind of radio frequency antenna installation integrated seat, including upper installation shell and with the lower installation shell of four bolts installation of upper installation shell, the upper installation shell top is integrally equipped with limit frame, the lower installation shell bottom is integrally equipped with mounting bracket, the limit frame inboard is installed with RTK antenna by fixed part, the mounting bracket inboard is installed with stick antenna by mounting part, the upper installation shell top and close to one side are equipped with wire slot, the stick antenna is connected between RTK antenna by SMA connector, and the upper installation shell and the lower installation shell are fixed on two sides arm by four bolts, arm is far from fuselage, avoid unnecessary electronic equipment interference, RTK antenna distance is far, without any shelter, guarantee the search star quality and pointing accuracy, the radio frequency antenna of stick antenna is the smallest sheltered area, RTK antenna and radio frequency antenna same set of fixed structure, light in weight, simple structure.

The invention discloses a battery piece and a photovoltaic module. The battery piece comprises a substrate, and the surface of the substrate is provided with an N-type doped layer, a P-type doped layer and an isolation region arranged between the N-type doped layer and the P-type doped layer; the N-type doping layer and the P-type doping layer are arranged in an interdigital manner, each of the N-type doping layer and the P-type doping layer comprises a main body part and a finger-shaped part, the main body parts extend along a first direction, and the finger-shaped parts are arranged on at least one side of the main body parts along a second direction; the finger-shaped part is provided with a current collection electrode extending along a second direction; the first insulating layer is arranged at the position, close to the main body part of the opposite conductive type, of the finger-shaped part; the first insulating layer covers the end portion of the collector electrode, and the first insulating layer and the adjacent isolation region are arranged at an interval in the second direction. The first insulating layer is utilized to play an insulating and isolating role, meanwhile, the shielding area of the first insulating layer on the surface of the substrate is reduced, and the problem of poor local connection of the interconnector caused by the fact that the interconnector is heightened due to the fact that the first insulating layer partially extends below the interconnector can also be avoided.

The utility model relates to a solar cell dense grid line structure which comprises a plurality of main grids arranged on a silicon substrate at intervals and a plurality of first auxiliary grids perpendicular to the main grids, each first auxiliary grid is provided with a plurality of disconnected spacer regions, and the spacer regions between the adjacent first auxiliary grids are arranged in a staggered mode. At least two second auxiliary grids used for forming a loop are arranged between every two adjacent first auxiliary grids, and the second auxiliary grids are parallel to the length direction of the main grids. The utility model has the effect of reducing the negative effects of opening voltage reduction, silver paste consumption increase and shading area increase caused by the increase of the number of the grid lines.

The utility model discloses an auxiliary grid screen printing plate and an auxiliary grid, which are applied to the technical field of solar cells and comprise a gauze and a photosensitive adhesive film layer attached to the gauze, the total thickness of the gauze and the photosensitive adhesive film layer is 16 [mu] m + / -2 [mu] m and comprises values at two ends; the mesh yarns are mesh knot-free mesh yarns with the wire diameter of 500 meshes and 7 microns; at least 170 auxiliary grid pattern holes are formed in the photosensitive adhesive film layer; the width of the auxiliary grid pattern hole is 12 [mu] m + / -2 [mu] m, and the auxiliary grid pattern hole comprises values at two ends; the auxiliary grid pattern holes are in one-to-one correspondence with the auxiliary grids. Compared with a conventional screen printing plate, the width of an auxiliary grid pattern is reduced, the printing line width of a solar cell can be effectively reduced, the shading area can be greatly reduced due to the reduction of the line width, meanwhile, the thickness of the screen printing plate is reduced, the ink permeability of auxiliary grid pattern holes can be effectively improved, slurry can permeate more easily, line breakage is prevented, and the grid line quality is improved; and the conversion efficiency of the battery piece can be improved.

The invention discloses a temperature adjusting device, semiconductor process equipment and a temperature adjusting method, and belongs to the technical field of semiconductor processing. The temperature adjusting device is used for adjusting the temperature of the wafer, the temperature adjusting device comprises a shading assembly, a temperature detection assembly and a driving assembly, and the shading assembly is movably arranged between the heating source and the wafer and is used for shielding the wafer; the temperature detection element is used for detecting the temperature of the central area and the edge area of the wafer; the driving assembly is connected with the shading assembly and used for driving the shading assembly to act according to a detection signal of the temperature detection assembly so as to adjust the shading area of the shading assembly on at least one of the center area and the edge area. In the scheme, the shielding area of the shading assembly on at least one of the central area and the edge area is adjusted according to the temperature difference, detected by the temperature detection assembly, of the central area and the edge area of the wafer, it can be guaranteed that the temperatures of the central area and the edge area are the same, and therefore the wafer is prevented from deforming or jumping up from the supporting ring.

The application discloses a dual-band multi-polarization common-aperture array antenna, and relates to the technical field of microwave antennas, comprising a low-band horizontal polarization array antenna, a low-band vertical polarization array antenna, a high-band vertical polarization array antenna and an electromagnetic surface realized by a dielectric, a copper foil sheet and a dielectric metallization structure; wherein the dielectric is a laminated structure realized by four-layer dielectric plates, and the four-layer dielectric plates are respectively a first dielectric plate, a second dielectric plate, a third dielectric plate and a fourth dielectric plate; each array antenna comprises a plurality of two-dimensionally distributed planar dipoles, and the planar dipoles of the low-band horizontal polarization array antenna are first planar dipoles; the height of the dual-band multi-polarization common-aperture array antenna is 0.12 lambda 0, less than half of the height of a conventional dipole antenna, and the radiation arm length is also shorter, so that the dual-band multi-polarization common-aperture array antenna has the characteristics of flatness and low profile compared with a conventional dipole realized by a metal rod or a metal plate.

This invention discloses a low-voltage, high-brightness, reverse-polarity red LED chip and its fabrication method. The chip includes a Si support substrate, an epitaxial stack disposed on the Si support substrate, a P-side electrode disposed on the P-type side of the epitaxial stack, and an N-side electrode disposed on the N-type side of the epitaxial stack. The P-side electrode includes multiple semi-circular electrode units, each having a straight edge and a rounded edge. The semi-circular electrode units are positioned close to the projection area of ​​the N-side electrode in the chip plane direction. The straight edges of the semi-circular electrode units form linear or planar current injection boundaries. This invention enables the current to extend laterally from the linear or planar current injection boundaries formed by the straight edges of the semi-circular electrode units towards the chip plane, reducing current spreading resistance, improving current distribution uniformity, and reducing the electrode shading area, thereby achieving low operating voltage and high light output.

The utility model provides a detection device for a silicon carbide power device, which relates to the technical field of silicon carbide power device detection equipment, and comprises a fixing mechanism arranged on the upper surface of a detection table, the fixing mechanism comprises a connecting rod, and the top end of the connecting rod is fixedly connected with a connecting block. Symmetrical transmission rods are hinged to the inner wall of the connecting block, L-shaped supporting rods are hinged to the outer surfaces of the two transmission rods, bearing plates are fixedly connected to the bottom ends of the two L-shaped supporting rods, sliding sleeves are fixedly connected to one ends of the two bearing plates, and guide rods are slidably connected to the inner walls of the sliding sleeves. According to the detection device for the silicon carbide power device, through cooperative arrangement of the detection table and the fixing mechanism, people do not need to hold the power device when detecting the power device, the hand shielding area in the power device scanning process is reduced, and scanning of the power device is more comprehensive.