Circulating air duct structure of high-voltage frequency converter

Abstract

The utility model relates to the technical field of frequency converter heat dissipation, in particular to a circulating air duct structure of a high-voltage frequency converter, which comprises a frequency converter main body, an air duct main body is arranged in the frequency converter main body, a top sealing plate is fixedly mounted at the top of the frequency converter main body, and a quick release structure is arranged in the top sealing plate. The quick release structure comprises a fixing frame, inserting grooves are formed in the two sides of the top of the fixing frame, through the quick release structure, when the fan and the filter element need to be taken out for dust removal maintenance, the two fixing bolts are screwed off, then the protection frame is rotated, the clamping blocks are moved to the positions of the inserting grooves, the protection frame is taken out of the fixing frame at the moment, and then the fan and the filter element are taken out for dust removal maintenance. Due to the fact that the connecting pipe is in threaded connection with the protection frame through the threaded groove ring, the connecting pipe can be screwed off, dust removal work can be conducted on the fan, meanwhile, the net cover is detached, the filter element can be taken out of the connecting pipe to be replaced, the purposes that the frequency converter and the fan are designed in a split mode, and the filter element can be rapidly detached and replaced are achieved, and the dust removal and maintenance efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to frequency converter heat dissipation technical field, concretely is a high pressure frequency converter circulating air duct structure. BACKGROUND

[0002] Frequency converter is application frequency conversion technology and microelectronic technology, through the way of changing motor working power frequency to control the electric power control equipment of AC motor, frequency converter will produce a large amount of heat in the working process, if these heat is not promptly dissipated, will lead to the temperature rise in frequency converter internal, and then influence its working performance and life.

[0003] The existing frequency converter circulating air duct still has certain deficiency in actual use process: the existing frequency converter air duct is internally provided with a fan, however, the fan is arranged in the frequency converter, when the filter element needs to be replaced, the frequency converter shell is disassembled and taken out, the process is relatively cumbersome, and the efficiency of frequency converter maintenance is reduced, based on the existing technical deficiency, the utility model designs a high pressure frequency converter circulating air duct structure. UTILITY MODEL CONTENT

[0004] In view of the deficiency of the prior art, the utility model provides a high pressure frequency converter circulating air duct structure, which has the advantages of frequency converter and fan split design, and can quickly disassemble and replace the filter element.

[0005] The utility model provides following technical scheme: a high pressure frequency converter circulating air duct structure, including frequency converter main part, the inside of frequency converter main part is provided with air duct main part, the top of frequency converter main part is fixedly installed top sealing plate, the inside of top sealing plate is provided with quick -release structure, quick -release structure includes fixed frame, the both sides of the top of fixed frame are provided with the slot, the inside of fixed frame is provided with the rotation groove, the both sides of the top of fixed frame are fixedly installed two screw columns, the inside screw of two screw columns is installed with fixed bolt, the inside of fixed frame is provided with protection frame, the both sides of the outer surface of protection frame are fixedly installed clamping block, the inside of two clamping blocks is provided with fixed groove, the inside of protection frame is provided with fan, the bottom of the inner chamber of protection frame is provided with connecting pipe, the inside of connecting pipe is provided with filter element.

[0006] As a preferred technical scheme of the utility model, the top of connecting pipe is fixedly installed with threaded groove ring, and the threaded groove ring is in threaded connection with the protection frame.

[0007] As a preferred technical scheme of the utility model, the bottom of connecting pipe is fixedly installed with air outlet cover, and the bottom of air outlet cover is fixedly installed with mesh cover through bolt.

[0008] As a preferred technical scheme of the utility model, the outer surface of frequency converter main part is provided with air outlet on one side.

[0009] As a preferred technical scheme of the utility model, the air outlet is in communication with the air duct main body.

[0010] As a preferred technical scheme of the utility model, the inner wall of the air duct main body is fixedly provided with two air resistance plates.

[0011] As a preferred technical scheme of the utility model, the outer surface of the two air resistance plates is provided with air permeation grooves on both sides.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The high-voltage frequency converter circulating air duct structure, through the quick release structure, when the fan and the filter element need to be taken out for ash removal and maintenance, two fixing bolts are unscrewed, then the protection frame is rotated, the clamping block is moved to the position of the insertion slot, at the moment, the protection frame can be taken out from the fixed frame, since the connecting pipe is connected with the protection frame through the thread groove ring, the connecting pipe can be unscrewed, thereby the fan can be cleaned, the net cover is removed, the filter element can be taken out from the connecting pipe for replacement, thereby the frequency converter and the fan are designed in a split type, the filter element can be quickly replaced, and the ash removal and maintenance efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is an appearance structure schematic view of the utility model;

[0015] Fig. 2 It is an air duct main body structure schematic view of the utility model;

[0016] Fig. 3 It is a fixed frame structure schematic view of the utility model;

[0017] Fig. 4 It is a clamping block structure schematic view of the utility model;

[0018] Fig. 5 It is an air outlet cover structure schematic view of the utility model.

[0019] In the drawing: 1, frequency converter main body; 2, air duct main body; 3, top sealing plate; 4, quick release structure; 41, fixed frame; 42, insertion slot; 43, rotation slot; 44, threaded column; 45, fixing bolt; 46, protection frame; 47, clamping block; 48, fixed groove; 49, fan; 410, connecting pipe; 411, thread groove ring; 412, filter element; 413, air outlet cover; 414, net cover; 5, air outlet; 6, air resistance plate; 61, air permeation groove. DETAILED DESCRIPTION

[0020] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0021] Please refer to Figs. 1-5 A high-voltage frequency converter circulating air duct structure, including frequency converter main body 1, the inside of frequency converter main body 1 is provided with air duct main body 2, the top of frequency converter main body 1 is fixedly installed with top sealing plate 3, the inside of top sealing plate 3 is provided with quick release structure 4;Quick release structure 4 includes fixed frame 41, the both sides of the top of fixed frame 41 are provided with slot 42, the inside of fixed frame 41 is provided with rotating groove 43, the both sides of the top of fixed frame 41 are fixedly installed with two threaded columns 44, the inside of two threaded columns 44 is screw-mounted with fixed bolt 45, the inside of fixed frame 41 is provided with protection frame 46, the both sides of the outer surface of protection frame 46 are fixedly installed with clamping block 47, the inside of two clamping blocks 47 is provided with fixed slot 48, the inside of protection frame 46 is provided with fan 49, the bottom of the inner chamber of protection frame 46 is provided with connecting pipe 410, the inside of connecting pipe 410 is provided with filter element 412.

[0022] Please refer to Figs. 4-5 Connecting pipe 410 top is fixedly installed with threaded groove ring 411, threaded groove ring 411 is connected with protection frame 46 by screwing.Connecting pipe 410 bottom is fixedly installed with air outlet cover 413, the bottom of air outlet cover 413 is fixedly installed with net cover 414 by bolt.

[0023] Connecting pipe 410 is unscrewed, thus the dust removal work of fan 49 can be carried out, at the same time, net cover 414 is removed, filter element 412 can be taken out from connecting pipe 410 for replacement.

[0024] Please refer to Figs. 1-2 The outer surface of frequency converter main body 1 is provided with air outlet 5. Air outlet 5 is communicated with air duct main body 2. The inner wall of air duct main body 2 is fixedly installed with two air resistance plates 6. The both sides of the outer surface of two air resistance plates 6 are provided with air permeation groove 61.

[0025] 39After cold air is sucked into the inside of air duct main body 2, the flow speed of cold air in the inside of air duct main body 2 can be slowed down by the setting of air resistance plate 6, so that it can be mixed with hot air fully and then taken out from air outlet 5, so as to improve the efficiency of heat dissipation.

[0026] The working principle is that when a high-voltage frequency converter circulating air duct structure is used, firstly, the cold air is sucked into the air duct body 2 by the drive 39 of 39, and then the flow speed of the cold air in the air duct body 2 is slowed down by the setting of the air resistance plate 6, so that the cold air is fully mixed with the hot air and then taken out from the air outlet 5, thereby improving the heat dissipation efficiency. When the fan 49 needs to be repaired and the filter element 412 needs to be replaced, the two fixing bolts 45 are unscrewed, then the protection frame 46 is rotated, the clamping block 47 is moved to the position of the insertion slot 42, at this time the protection frame 46 can be taken out from the fixed frame 41, since the connecting pipe 410 is threadedly connected with the protection frame 46 through the threaded groove ring 411, the connecting pipe 410 can be unscrewed, thereby the fan 49 can be cleaned, at the same time the net cover 414 is removed, the filter element 412 can be taken out from the connecting pipe 410 for replacement.

[0027] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A high-voltage frequency converter circulating air duct structure comprising a frequency converter body (1), characterized in that: The inside of the frequency converter body (1) is provided with an air duct body (2), the top of the frequency converter body (1) is fixedly installed with a top sealing plate (3), and the inside of the top sealing plate (3) is provided with a quick release structure (4); The quick release structure (4) comprises a fixed frame (41), two sides of the top of the fixed frame (41) are provided with insertion grooves (42), the inside of the fixed frame (41) is provided with a rotating groove (43), two sides of the top of the fixed frame (41) are fixedly installed with two threaded columns (44), the inside of the two threaded columns (44) is screwed with fixed bolts (45), the inside of the fixed frame (41) is provided with a protection frame (46), the outer surface of the protection frame (46) is fixedly installed with clamping blocks (47) on both sides, the inside of the two clamping blocks (47) is provided with fixed grooves (48), the inside of the protection frame (46) is provided with a fan (49), the bottom of the inner cavity of the protection frame (46) is provided with a connecting pipe (410), the inside of the connecting pipe (410) is provided with a filter element (412).

2. The high-voltage frequency converter air duct structure according to claim 1, characterized in that: The top of the connecting pipe (410) is fixedly installed with a threaded groove ring (411), and the threaded groove ring (411) is screwed with the protection frame (46).

3. The high-voltage frequency converter air duct structure of claim 2, wherein: The bottom of the connecting pipe (410) is fixedly installed with an air outlet cover (413), and the bottom of the air outlet cover (413) is fixedly installed with a mesh cover (414) through bolts.

4. The high-voltage frequency converter air duct structure of claim 1, wherein: The outer surface of the frequency converter body (1) is provided with an air outlet (5) on one side.

5. The high-voltage frequency converter air-duct structure of claim 4, wherein: The air outlet (5) is communicated with the air duct body (2).

6. The high voltage frequency converter air plenum structure of claim 1, wherein: The inner wall of the air duct body (2) is fixedly installed with two air resistance plates (6).

7. The high-voltage frequency converter air-duct structure of claim 6, wherein: Two sides of the outer surface of the air resistance plate (6) are provided with air permeation grooves (61).

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