Filter screen assembly for wind turbine generator frequency converter

A technology for wind turbines and frequency converters, applied in the fields of dispersed particle filtration, chemical instruments and methods, dispersed particle separation, etc., can solve the problems of inconvenient disassembly and assembly, and achieve the effect of improving fixing, simple and convenient installation process, and low installation and production cost.

Inactive Publication Date: 2020-05-29
大唐向阳风电有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is: in order to solve the technical problem of inconvenient disassembly and assembly of the filter screen assembly used for the inverter of the wind turbine, the present invention provides a filter assembly for the inverter of the wind turbine

Method used

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  • Filter screen assembly for wind turbine generator frequency converter
  • Filter screen assembly for wind turbine generator frequency converter
  • Filter screen assembly for wind turbine generator frequency converter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as Figure 1 to Figure 7 As shown, this embodiment provides a filter screen assembly for wind turbine frequency converters, including a fixed frame 1 and a rectangular channel 2 formed therein, a retaining frame 3 is arranged in the rectangular channel 2, and the four outer sides of the retaining frame 3 are The walls are uniformly fixed under the four inner walls of the fixed frame 1, and the top of the front side wall and the top of the rear side wall inside the fixed frame 1 are provided with a placement slot 4 with the same structure, and the top of the left side wall inside the fixed frame 1 and the top of the right side wall are respectively provided with snap slots 5 that communicate with the different ends of the same placement slot 4, and the interior of the placement slot 4 is provided with a slidable clamping plate 6, the width of the clamping plate 6 is the same as the depth of the placement slot 4, and the two ends of the clamping plate 6 are inserted ...

Embodiment 2

[0034] Such as Figure 1 to Figure 7 As shown, this embodiment is further optimized on the basis of embodiment 1, specifically:

[0035] The filter mechanism 11 includes a rectangular filter frame 12. The rectangular filter frame 12 is composed of four aluminum alloy bars 13 and four metal buckles 14. The bottom of the aluminum alloy bar 13 is hollow and two bars parallel to the sides of the aluminum alloy bar 13 are arranged in the center. Bar 15, one end of the metal buckle 14 is inserted between the two clips 15 of an aluminum alloy bar 13 and the other end is clipped between the two clips 15 of the adjacent aluminum alloy bar 13, and all the clips 15 are fixed with Stainless steel filter screen 16.

[0036] In this embodiment, the rectangular filter frame 12 is formed by connecting and fixing the aluminum alloy strips 13 and the metal buckles 14. When installing, it is only necessary to align the adjacent aluminum alloy strips 13 first, and then insert the metal buckles 1...

Embodiment 3

[0038] Such as Figure 1 to Figure 7 As shown, this embodiment is further optimized on the basis of embodiment 2, specifically:

[0039] The stainless steel filter screen 16 is bonded to the clamping strip 15 through the sealing tape, and the rubber layer 17 is filled and fixed between the two clamping strips 15 on the aluminum alloy strip 13, and the stainless steel filter screen 16 is fixed by several rivets 18 driven into the rubber layer 17 live.

[0040] In this embodiment, the stainless steel filter 16 is fixed by the sealing rubber strip on the one hand, and fixed by inserting the rubber layer 17 through the rivet 18 on the other hand, which effectively improves the fixing reliability. Compared with snapping the filter into the center or inside, the removal efficiency is greatly improved.

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Abstract

The invention discloses a filter screen assembly for a wind turbine generator frequency converter. The invention relates to the technical field of wind power auxiliary equipment. The technical problemthat an existing filter screen assembly for a wind turbine generator frequency converter is inconvenient to disassemble and assemble is solved. The filter screen assembly comprises a fixed square frame and a rectangular channel formed in the fixed square frame; a blocking frame is arranged in the rectangular channel; four outer side walls of the blocking frame are in one-to-one close contact andare fixed below four inner side walls of the fixed square frame; the top of the front side wall and the top of the rear side wall in the fixed square frame are each provided with a placement groove. Aclamping groove is formed in the fixed square frame; a slidable clamping plate is arranged in the placement groove; the bottom faces of the two ends of the clamping plate are each provided with a column groove, clamping columns are arranged in the column grooves, compression springs are arranged between the top faces of the clamping columns and the bottoms of the column grooves, two circular grooves are formed in the bottom faces of the clamping grooves, a filtering mechanism is placed on a blocking frame, and the height of the filtering mechanism is smaller than the distance between the bottom face of the placement groove and the top face of the blocking frame.

Description

technical field [0001] The invention relates to the technical field of wind power auxiliary equipment, and more specifically relates to a filter screen assembly used for a frequency converter of a wind power unit. Background technique [0002] Wind power generation is wind power. Usually, the motor units used in wind power are located in a harsh environment—the wind and sand are extremely strong, and the inverter module is very prone to overheating, which will cause the inverter to stop due to failure and affect the power generation of the wind turbine. Through the inspection, it was found that the main reason for the overheating of the module was the problem of the cooling system of the frequency converter, which was mainly caused by the blockage of the filter screen of the frequency converter. The filter screen is very easy to block, which requires timely maintenance of the filter screen. The filter screen at the vent of some frequency converters is made of paper, which is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D46/00B01D46/42
CPCB01D46/0005B01D46/88
Inventor 吕大朋张永欣薛莹
Owner 大唐向阳风电有限公司
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