Sungrow Power Supply has been granted a patent for an innovative power unit design for inverters. The design includes three package modules with complementary switch transistors, arranged in a specific layout to reduce size and cost without changing the driver board layout. GlobalData’s report on Sungrow Power Supply gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Sungrow Power Supply, Smart energy mgmt systems was a key innovation area identified from patents. Sungrow Power Supply's grant share as of February 2024 was 71%. Grant share is based on the ratio of number of grants to total number of patents.
Patent granted for power unit structure in inverter
A recently granted patent (Publication Number: US11901293B2) discloses a power unit designed for use in an inverter. The unit consists of three package modules, each equipped with two complementary switch transistors. The arrangement involves placing the first and second package modules on one side of the inner space of the power unit, with the third package module on the other side. The alternating current (AC) side of the power unit connects to an AC output copper bar of the inverter through an AC bus bar, which can be configured with a parallel confluence copper bar or a combination of parallel confluence and parallel copper bars. The power unit operates with a three-level topology, with specific connections between the input and output terminals of the package modules to facilitate efficient power conversion.
Moreover, the patent also covers a power module comprising multiple power units connected in parallel for enhanced performance. The terminals serving as DC sides and AC sides of the power units are interconnected accordingly. The patent further details the configuration of an inverter incorporating the power module, complete with a DC input bus, AC bus bar, and AC output copper bar. The design ensures symmetrical positioning of the input and output points, with paths through the power units maintaining consistent impedance levels. Additional features such as radiators, heat pipes, and driver boards are also described to optimize the functionality and thermal management of the inverter system.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
