10results about How to "Increase the generating area" patented technology

The invention relates to the technical field of solar cells, and particularly discloses a back contact solar cell, a cell module and a photovoltaic system, and the cell comprises a silicon substrate which is provided with a light receiving surface and a backlight surface which are opposite to each other; a doping layer and an electrode layer are sequentially arranged on the backlight face in the direction away from the light receiving face, the doping layer comprises N-type doping layers and P-type doping layers which are alternately arranged at intervals, the electrode layer comprises N-type electrodes and P-type electrodes, the electrical conductivity of the silicon substrate, the electrical conductivity of the P-type doping layers and the electrical conductivity of the N-type doping layers are sequentially increased, and the electrical conductivity of the P-type doping layers and the electrical conductivity of the N-type doping layers are sequentially increased. When the silicon substrate is a P-type silicon substrate, the total length of all the N-type electrodes is greater than the total length of all the P-type electrodes; when the silicon substrate is an N-type silicon substrate, the total length of all the P-type electrodes is larger than the total length of all the N-type electrodes. Separation of photo-generated electron hole pairs and collection of current can be enhanced, series resistance can be effectively reduced, power loss in the cell is reduced, filling factors are improved, meanwhile, the effective power generation area of the silicon substrate is increased, more photo-generated carriers are generated, short-circuit current is improved, and the conversion efficiency of the cell is effectively improved.

This utility model discloses a support system for an integrated sloping roof and courtyard, and a residential photovoltaic power station. The system includes a roof support and a courtyard support. The roof support comprises several horizontally spaced inclined beams on a first sloping roof, several horizontally spaced back braces on a second sloping roof, and short column support assemblies installed on both the first and second sloping roofs to support the inclined beams and back braces. The back braces are correspondingly positioned to the inclined beams, with their upward-sloping ends connected to the beams. The inclined beams extend downwards along the first sloping roof to above the courtyard. The courtyard support includes columns installed within the courtyard, with their upper ends connected to the inclined beams. A reinforcement structure is provided between the columns and the inclined beams, and / or between the columns themselves. The roof support and courtyard support can be designed as a single unit, forming a unified slope above the first sloping roof and courtyard for installing photovoltaic modules, increasing the number of photovoltaic modules installed and expanding the power generation area.

The embodiment of the present application relates to the photovoltaic field, and provides a photovoltaic module, comprising: a plurality of cell strings, the cell string comprising a plurality of cell pieces connected in series, the first cell piece connected in series in the cell string is a first cell piece, the last cell piece connected in series in the cell string is a second cell piece, a plurality of first cell pieces are connected through a first solder strip, a plurality of second cell pieces are also connected through the first solder strip, and the extension direction of the first solder strip is parallel to the extension direction of the first fine grid line in the cell piece. The photovoltaic module provided by the embodiment of the present application connects two cell strings which need to be connected in series through the solder strip interconnection strip perpendicular to the main grid at the head and tail cell pieces of the cell string, so that the head and tail cell pieces of the cell string can cancel the bus bar design, and the problem that the series connection mode of the cell string of the photovoltaic module in the prior art can limit the power generation area of the cell piece or easily cause the risk of hidden cracks / chips is solved.

The invention discloses automobile large sunscreen glass, which relates to the technical field of sunscreen glass and sequentially comprises a first glass substrate, a first thermoplastic membrane, a second glass substrate, a second thermoplastic membrane and a third glass substrate from top to bottom, multiple functional layers which are arranged according to any sequence and number are also arranged between the first glass substrate and the third glass substrate, and the multiple functional layers comprise a heat insulation heating functional layer, a thin film solar cell layer and an electrochromic layer; the functional layers are precisely designed and combined, and on the basis of large-area photoelectric conversion, the glass not only has the functions of uniform dimming, continuous heat insulation, ultraviolet isolation and the like, so that the glass can provide excellent heat insulation performance and flexible dimming function while keeping high power generation efficiency, and the glass has a wide application prospect. And meanwhile, intelligent regulation and control can be realized through cooperative work of various sensors.

The application provides a solar electric air pump, comprising: a casing, a power module arranged in the casing, an air inflating module arranged in the casing, a solar panel assembly and a fixing module detachably connected with the top surface of the casing; a limiting portion is formed in the bottom of the casing and matched with a bicycle frame; the air inflating module is electrically connected with the power module; the solar panel assembly comprises at least one solar panel, the solar panel is rotatable to be unfolded to a horizontal position or folded on at least one side of the casing, and the solar panel assembly is electrically connected with the power module; and the fixing module fixes the limiting portion on the bicycle frame. The solar electric air pump of the application can be unfolded to a horizontal position or folded on at least one side of the casing through the rotatable and adjustable solar panel, so that the effect of supplementing the electric quantity by using solar energy, widening the application scene and meeting the outdoor emergency use demand of users is achieved.

The invention discloses a floating type offshore photovoltaic power generation platform with high area utilization rate, which comprises a top frame, a bottom frame, a buoy, a plurality of first photovoltaic panels, a plurality of second photovoltaic panels and a support column, and is characterized in that the top frame and the bottom frame are arranged at intervals in the vertical direction, and a stand column is arranged between the top frame and the bottom frame; the buoy is arranged on the bottom frame and used for providing buoyancy for the bottom frame; the first photovoltaic panels are arranged on the edge of the top frame and surround the top frame, the first photovoltaic panels extend in the vertical direction, the second photovoltaic panel is arranged in a space defined by the first photovoltaic panels through supporting columns, and the second photovoltaic panel is located above the first photovoltaic panels. The floating type offshore photovoltaic power generation platform provided by the embodiment of the invention has the advantage of high area utilization rate, so that the power generation efficiency per unit area is high, and the overall power generation benefit is improved.

The invention provides an electromechanical coupling spiral generator, which comprises a plurality of spiral piezoelectric patches with the same structure, the plurality of spiral piezoelectric patches are overlapped to form a coaxial multi-spiral form, the plurality of spiral piezoelectric patches are close to each other and insulated from each other, the plurality of spiral piezoelectric patches respectively form an inductor, and the plurality of spiral piezoelectric patches are arranged in the coaxial multi-spiral form. The multiple spiral piezoelectric plates are overlapped to form a capacitor, and the inductor and the capacitor form an LC oscillating circuit. The electromechanical coupling spiral generator provided by the invention can enlarge the power generation area, prolong the power generation time, increase the amplitude of alternating current signals and improve the power generation efficiency. The electromechanical coupling spiral generator can be applied to an environment capable of providing continuous vibration, vibration energy is continuously absorbed, electric energy is generated, and electric energy conversion output is achieved.

A mobile expandable photovoltaic device, comprising a bearing support base body, a photovoltaic assembly, a hydraulic device, a longitudinal push rod, a transverse push rod, a transverse push rod support, a push rod fixing support, a transverse push rod shaft and a longitudinal push rod shaft are integrated on the bearing support base body, the hydraulic device is fixed to the bearing support base body through the push rod fixing support, and the output end of the hydraulic device is hinged with the longitudinal push rod shaft and the transverse push rod shaft through the longitudinal push rod and the transverse push rod respectively; the transverse push rod is fixed with the bottom of the photovoltaic assembly through the transverse push rod support; the longitudinal push rod shaft and the transverse push rod shaft are respectively limitedly installed with the photovoltaic assembly and the transverse push rod support, and are used for driving the photovoltaic assembly to lift and steplessly adjust the angle. The photovoltaic assembly angle is adjusted through the hydraulic device, the illumination condition is adapted, the device is flexible to move and expand, and the synergy is high; through the synergistic effect of the meteorological sensor and the control module, the ability to resist severe weather is improved; the device is additionally provided with a dustproof device, and maintenance is facilitated.

The utility model relates to a welding strip folding type photovoltaic module, which comprises battery pieces, and adjacent battery pieces are connected through a welding strip along the main grid direction of the battery pieces to form a battery piece string. A welding strip led out from one end of the battery piece string is a positive electrode and is connected through a positive electrode bus bar; the welding strips led out from the other ends of the battery piece strings are cathodes and are connected through a cathode bus bar, and the welding strips at the two ends of the battery piece strings are bent by 180 degrees, so that the anode bus bar and the cathode bus bar are positioned on the back surfaces of the battery pieces; the part, bent to the back face of the battery piece, of the welding strip is separated from the back face of the battery piece through an insulating filler strip, or the parts, bent to the back face of the battery piece, of the welding strip are separated through insulating filler strips. According to the arrangement, the front power generation area of the photovoltaic module is increased, and the efficiency of the photovoltaic module is improved; the design and the use of the bus bar are more flexible, the bus bar with enough sectional area can be used for converging, the electron collection capability can be improved to a certain extent, and the assembly power and the assembly efficiency are improved.