Power cabinet of inverter

A power cabinet and inverter technology, which is applied in the direction of output power conversion device, conversion of AC power input to DC power output, conversion of equipment structural parts, etc., can solve the problem of affecting the life of the inverter and reducing the protection level of the inverter , damage and other issues to achieve the effect of prolonging life, improving the overall protection level, and avoiding damage

Inactive Publication Date: 2017-09-15
SUNGROW POWER SUPPLY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The heat dissipation medium of the above-mentioned forced air-cooled heat dissipation is external room temperature air. When the inverter is in a harsh environment, the external cold air blows into the inverter, and the polluted cold air is m

Method used

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  • Power cabinet of inverter

Examples

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Embodiment Construction

[0050] The embodiment of the present invention provides an inverter power cabinet, which improves the overall protection level of the inverter.

[0051] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0052] Please refer to the attached Figure 1-6 , The inverter power cabinet provided by the embodiment of the present invention includes a cabinet body and power devices arranged in the cabin...

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PUM

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Abstract

The invention provides a power cabinet of an inverter. The power cabinet comprises a cabinet body and a power device arranged in the cabinet body. The cabinet body comprises a low security installation cavity and a high security installation cavity, which are sealed and separated. The power device comprises a high security grade power device arranged in the low security installation cavity and a low security grade power device arranged in the high security installation cavity. The low security installation cavity has an outer cold wind inlet and an inner cold wind outlet which communicate with the outside. A first draught fan is arranged in the low security installation cavity. The power cabinet also comprises a heat exchanger used for dissipating heat of the high security installation cavity. According to the invention, a forced cold wind duct is formed in the low security installation cavity; external cold wind enters the low security installation cavity to carry out heat dissipation; sealed type heat dissipation is achieved for the low security grade power device in the high security installation cavity through the heat exchanger, so damage to the low security grade power device caused by polluted cold wind is avoided; the whole security grade of the inverter is improved; and the service lifetime of the inverter is prolonged.

Description

Technical field [0001] The invention relates to the technical field of electrical equipment, and more specifically, to an inverter power cabinet. Background technique [0002] Photovoltaic grid-connected inverters are used as the interface equipment between the solar power generation system and the grid, and their heat dissipation performance has a greater impact on the stability of the entire inverter system, the service life of power devices, and the volume of the product. The internal components of the inverter include high-protection power devices such as reactors, resistors and radiators, as well as low-protection power devices such as inverter modules, capacitor components, DC MCB components, AC capacitors, AC circuit breakers, and AC contactors . [0003] Considering the power loss characteristics and economy of high-power grid-connected inverters, the heat dissipation method of high-power grid-connected inverters mostly adopts forced air cooling, that is, all components in...

Claims

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Application Information

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IPC IPC(8): H02M7/00H05K7/20
CPCH02M7/003H05K7/20136H05K7/20572H05K7/206H05K7/20909H05K7/20154H05K7/20172H05K7/20181
Inventor 万汝斌王晓虎谭均朱其姚郑浩
Owner SUNGROW POWER SUPPLY CO LTD
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