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Air duct assembly, frequency conversion box and centrifuge

A technology of air duct components and centrifuges, which is applied in the field of centrifuges, and can solve problems such as affecting air duct sealing, poor air duct sealing, and difficulty in air duct assembly

Active Publication Date: 2021-05-04
SHANGHAI MEICON INTELLIGENT CONSTR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] There are many sheet metal parts inside the inverter, and screws are usually used to fix the sheet metal parts and other components in the inverter. However, the way of screw fixing makes the assembly have dimensional deviation. When the error accumulates, there will be a large size deviation in the air duct between the capacitor component and the partition, which will make the assembly of the air duct difficult, or a large gap will be generated between the air duct and the partition, which will affect the airtightness of the air duct. Poor sealing of the air duct

Method used

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  • Air duct assembly, frequency conversion box and centrifuge
  • Air duct assembly, frequency conversion box and centrifuge
  • Air duct assembly, frequency conversion box and centrifuge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] like figure 1 and Figure 9 As shown, an air duct assembly is proposed according to an embodiment of the present invention, which defines:

[0065] The air channel assembly includes: a ventilation plate 10, a ventilation cavity 20, an auxiliary air channel 30, and a sealing assembly 40, wherein the ventilation opening 12 is set on the ventilation plate 10, the sealing assembly 40 is arranged around the air opening 12, and a plurality of auxiliary air channels 30 is set corresponding to the ventilation opening 12, so as to deliver cold wind to a plurality of auxiliary air passages 30 through the ventilation opening 12, wherein the plurality of auxiliary air passages 30 are arranged at one end of the ventilation chamber 20, so that the cold wind can pass through the plurality of auxiliary air passages 30. Flow into the ventilation chamber 20, wherein the auxiliary air duct 30 is detachably connected to the ventilation chamber 20, and the air duct structure is decomposed ...

Embodiment 2

[0068] like Image 6 and Figure 9 As shown, in addition to the features of the above-mentioned embodiments, it is further defined:

[0069] The sealing assembly 40 specifically includes: a multi-fold sealing plate 44 and a matching sealing plate 42. The multi-fold sealing plate 44 is arranged around the vent 12, and an opening 46 is formed on the side of the multi-fold sealing plate 44. A plurality of auxiliary air ducts 30 can Move out from the opening 46 to the assembly position with the ventilation cavity 20 to disassemble the auxiliary air duct 30. Specifically, the multi-fold sealing plate 44 is three sections of sheet metal connected in sequence, and any two adjacent sections of sheet metal are perpendicular to each other. , and form an opening 46 on the side opposite to the sheet metal parts located in the middle section, the matching sealing plate 42 is arranged on the opening 46, and the two ends of the matching sealing plate 42 are connected with the two ends of th...

Embodiment 3

[0073] like Image 6 and Figure 7 As shown, in addition to the features of any of the above-mentioned embodiments, it is further defined:

[0074] The seal assembly 40 specifically includes: a first fold 48, a second fold 410, the first fold 48 is connected to the ventilation panel 10 to connect the seal assembly 40 to the ventilation panel 10, and the second fold 410 is connected to the first fold 410. The folded edge 48 is fixedly connected, and a non-zero angle is formed between the second folded edge 410 and the first folded edge 48, so that the second folded edge 410 encloses an air duct for air flow, and a plurality of auxiliary air ducts 30 can extend into In the air duct surrounded by the second folded edge 410 , the communication between the plurality of auxiliary air ducts 30 and the ventilation opening 12 is realized.

[0075] Further, the first folded edge 48 and the second folded edge 410 are perpendicular, and a plurality of auxiliary air ducts 30 extend into ...

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PUM

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Abstract

The invention proposes an air duct assembly, a frequency conversion box and a centrifuge, wherein the air duct assembly includes: a ventilation plate, a ventilation opening is provided on the ventilation plate, and a sealing component surrounding the ventilation opening; a ventilation cavity, a ventilation cavity One end is provided with a plurality of auxiliary air ducts corresponding to the ventilation openings; wherein, the auxiliary air ducts are detachably connected with the ventilation cavity, the inner wall size of the sealing assembly is larger than the outer wall size of the multiple auxiliary air ducts, and the auxiliary air ducts are far away from the ventilation cavity. One end is sealed by a sealing assembly. Through the technical solution of the present invention, the length of the plurality of auxiliary air ducts extending into the inner wall of the sealing assembly can be adjusted, so as to overcome the assembly error caused by the large distance between the auxiliary air duct and the ventilation plate, resulting in difficulty in assembly or sealing To solve the problem of poor performance, improve the sealing performance of the auxiliary air duct.

Description

technical field [0001] The invention relates to the technical field of frequency converters, in particular to an air duct assembly, a frequency conversion box and a centrifuge. Background technique [0002] There are many sheet metal parts inside the inverter, and screws are usually used to fix the sheet metal parts and other components in the inverter. However, the way of screw fixing makes the assembly have dimensional deviation. When the error accumulates, there will be a large size deviation in the air duct between the capacitor component and the partition, which will make the assembly of the air duct difficult, or a large gap will be generated between the air duct and the partition, which will affect the airtightness of the air duct. Make the sealing of the air duct poor. Contents of the invention [0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related art. [0004] In view of this, an object of the pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K7/20
CPCH05K7/20909H05K7/20918
Inventor 叶剑成刘树清曹单蔡琨陈土金刘源
Owner SHANGHAI MEICON INTELLIGENT CONSTR CO LTD