Serial-parallel-connection combined photovoltaic assembly having no bus bars

• Main Authors: LIU FENG, LI HUAGANG, XIE DA, HUANG FEI, LI ZHAOCHEN
• Format: Patent
• Language: English
• Published: 11.02.2015
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; SEMICONDUCTOR DEVICES; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

The utility model discloses a serial-parallel-connection combined photovoltaic assembly having no bus bars. The photovoltaic assembly includes an outer frame support, a photovoltaic sheet layer, a lightning glass board and a bottom layer back board. The photovoltaic sheet layer is adhered to the bottom layer back board. The lighting glass board is mounted on the surface of the photovoltaic sheet layer. The outer frame support is a rectangular frame fixing the photovoltaic sheet layer, the lighting glass board and the back board in a framing manner. Four rows of photovoltaic sheets are distributed transversely on the photovoltaic sheet layer; each line includes nine photovoltaic sheets arranged successively in the longitudinal direction. Positive electrode leading-out lines and negative electrode leading-out lines of each nine photovoltaic sheets distributed in the longitudinal direction on the photovoltaic layer are connected with each other in series. The bottom layer back board is provided with lead output holes. The leading-out lines connected with each other in series can be led out from the lead output holes. Led-out serial-connection lines of the four transverse rows are connected with each other in parallel electrically. According to the utility model, traditional bus bars are removed and mounting area for a photovoltaic battery is enlarged, so that power generation volume in unit area is increased. The serial-parallel-connection combined photovoltaic assembly is simple in integral structure, easy to manufacture, convenient for integral mounting and promotion. Besides, the total power generation capability is increased by 10 to 20 percents on a basis of not changing a prior polycrystalline silicone material.