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Photovoltaic inverter

A photovoltaic inverter and inverter technology, which is applied in photovoltaic modules, photovoltaic power generation, and structural components of conversion equipment, etc., can solve the problems of complex layout of photovoltaic inverters and low heat dissipation efficiency of inverter power units, and improve heat dissipation. The effect of efficiency

Pending Publication Date: 2020-08-25
SUNGROW POWER SUPPLY CO LTD
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Problems solved by technology

[0003] The specific layout of the traditional photovoltaic inverter is relatively complicated. In order to ensure the protection level of the whole machine, the advantage of the air duct of the whole machine is sacrificed. Unit) is placed on the hot air end, and devices with higher temperature resistance (such as reactance) are placed on the cold air end, resulting in low heat dissipation efficiency of the inverter power unit

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Embodiment Construction

[0040] The core of the present invention is to provide a photovoltaic inverter to improve the heat dissipation efficiency of the inverter power unit.

[0041] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0042] Please refer to Figure 1 to Figure 7 .

[0043] In a specific implementation, the photovoltaic inverter provided by the specific embodiment of the present invention includes a cabinet and a power module arranged in the cabinet, and the power module includes an inverter power unit 1, a first air duct 8 and a 8, the second air duct 7 is isolated, the inverter power unit 1 is located upstream of the air intake of the first air duct 8, the first air inlet of the first air duct 8 and the second air inlet of the second air duct 7. Specifically, the heating modules in the cabine...

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Abstract

The invention discloses a photovoltaic inverter. The photovoltaic inverter comprises a cabinet and a power module arranged in the cabinet. The power module comprises an inversion power unit, a first ventilating duct and a second ventilating duct isolated from the first ventilating duct; the inversion power unit is located at the air inlet upstream of the first ventilating duct; the first ventilating duct is provided with a first air inlet and a first air outlet; and the second ventilating duct is provided with a second air inlet and a second air outlet. According to the photovoltaic inverter provided by the invention, the inversion power unit with more heat production is cooled by adopting an independent air duct and is arranged at the upstream of the first ventilating duct, so that cold air can timely cool the inversion power unit, and the heat dissipation efficiency of the inversion power unit is further improved.

Description

technical field [0001] The invention relates to the technical field of electrical equipment, in particular to a photovoltaic inverter. Background technique [0002] Photovoltaic grid-connected inverter is an interface device between solar power generation system and power grid. While ensuring the circuit design and implementation, the photovoltaic inverter also needs to ensure the heat dissipation performance of the inverter power module. The heat dissipation performance of the heating module in the photovoltaic inverter has an important impact on the working stability of the entire inverter system, product reliability, and the service life of power devices. [0003] The specific layout of the traditional photovoltaic inverter is relatively complicated. In order to ensure the protection level of the whole machine, the advantage of the air duct of the whole machine is sacrificed. Unit) is placed on the hot air end, and devices with higher temperature resistance (such as reac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K7/20H02M7/00H02S40/32
CPCH05K7/20909H02M7/003H02S40/32Y02E10/56H02S40/42
Inventor 郑浩朱其姚谭均高宇
Owner SUNGROW POWER SUPPLY CO LTD
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