CN112953169A

CN112953169A - Frequency converter with bidirectional ventilation structure

Info

Publication number: CN112953169A
Application number: CN202110249550.7A
Authority: CN
Inventors: 宋华妮; 李可
Original assignee: Wordwell Parker Beijing Technology Co ltd
Current assignee: Wordwell Parker Beijing Technology Co ltd
Priority date: 2021-03-08
Filing date: 2021-03-08
Publication date: 2021-06-11

Abstract

The invention discloses a frequency converter with a bidirectional ventilation structure, which comprises a frequency converter cabinet and a frequency converter main body, wherein the frequency converter main body is fixedly arranged on the inner rear wall of the frequency converter cabinet, an air outlet is fixedly arranged at the top of the frequency converter cabinet, the front surface of the frequency converter cabinet is rotatably connected with a cabinet door through a hinge, a first through hole and a second through hole are formed in the surface of the cabinet door in a penetrating manner, and a first filter screen is fixedly arranged inside each of the first through hole and the second through hole. According to the invention, through the matching among the second through hole, the sleeve, the telescopic component, the filtering component and the like, the purpose of rapidly cooling the frequency converter main body is realized, fine impurities such as hot air in the frequency converter cabinet and dust in the air can be prevented from entering the frequency converter main body, the integral normal operation is ensured, the integral installation and disassembly are very simple and convenient, and great convenience is provided for later-stage maintenance and replacement.

Description

Frequency converter with bidirectional ventilation structure

Technical Field

The invention relates to the technical field of frequency converters, in particular to a frequency converter with a bidirectional ventilation structure.

Background

With the miniaturization, multifunctionalization and high performance of frequency converters, especially the full digitalization of control means, the flexibility and adaptability of frequency converters are continuously enhanced. Therefore, in the modern industry, the application of the frequency converter is more and more extensive, almost all high-power frequency converters adopt a cabinet type design at present, and the cabinet type frequency converter has the characteristics of simple structure, flexible application, convenience for assembling with a complete set of power distribution equipment and the like.

The cooling means of the existing partial cabinet type frequency converter mainly drives the air inside the frequency converter main body to flow through a cooling fan inside the frequency converter main body, so that the purpose of cooling the frequency converter is achieved, or a ventilation window is arranged on a cabinet door of a frequency converter cabinet, but the simple ventilation window cannot meet the requirement that the temperature of the frequency converter is reduced to the required temperature. In view of the above, the present invention is to provide an inverter with a bidirectional ventilation structure, which can effectively solve the above problems.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a frequency converter with a bidirectional ventilation structure.

The scheme for solving the technical problems is as follows: the utility model provides a converter with two-way ventilation structure, includes converter rack and converter main part, converter main part fixed mounting is at the interior back wall of converter rack, the top fixed mounting of converter rack has the air exit, the front surface of converter rack is connected with the cabinet door through hinge rotation, the surface of cabinet door is run through and has been seted up first through-hole and second through-hole, the equal fixed mounting in inside of first through-hole and second through-hole has first filter screen, the inside of second through-hole is provided with the sleeve, the sleeve is kept away from second through-hole one side and has been seted up the annular standing groove, the inside of annular standing groove is provided with telescopic component, telescopic component's inside is provided with filtering component.

Further: the rear surface of the cabinet door is provided with a thread groove, the thread groove is correspondingly communicated with the second through hole, and the sleeve is fixedly connected with the surface of the cabinet door through the thread groove.

Further: the inside of first through-hole is provided with the magnetism dust screen, the first filter screen laminating in magnetism dust screen and the first through-hole.

Further: two first filter screen is the crisscross setting of symmetry from top to bottom, wherein in the first through-hole first filter screen is close to the converter main part and sets up.

Further: two exhaust fans are embedded on the surface of the cabinet door and close to the top.

Further: the telescopic assembly comprises a round block, a soft cushion layer is fixedly mounted on one side of the round block, a ferrule is fixedly mounted on the other side of the round block, and a spring is fixedly mounted between the ferrule and the groove wall of the annular placing groove.

Further: the filter assembly comprises a step and an annular gasket, the step is fixedly connected with the telescopic assembly, the annular gasket is in threaded connection with the telescopic assembly, and a second filter screen is arranged between the step and the annular gasket.

The invention has the following beneficial effects:

1. compared with the prior art, through the second through-hole, the sleeve, cooperation between flexible subassembly and the filtering component etc, can directly extract the lower air of temperature from the converter rack outward, thereby realize the purpose to converter main part rapid cooling, can also avoid inside tiny debris such as dust in the inside hot-air of converter rack and the air to get into the inside of converter main part, guarantee holistic normal operating, holistic installation dismantlement is all very simple and convenient simultaneously, overhaul and the change in later stage provides very big facility, the experience of product is felt better, the practicality is higher.

2. Compared with the prior art, through first through-hole, first filter screen, the cooperation between magnetism dust screen and the exhaust fan etc, can make the hot-air between converter main part and the converter rack, and the inside hot-air of converter main part, exchange with the lower air of the outer temperature of converter rack, thereby reduce the temperature in the converter rack, can also reduce the inside that tiny debris such as dust got into the converter rack in the air, more demands in the in-service use have been satisfied, the suitability is stronger.

Drawings

Fig. 1 is a side sectional view of an overall structure of a frequency converter having a bidirectional ventilation structure according to the present invention;

FIG. 2 is a side sectional view of a cabinet door of a frequency converter having a bi-directional ventilation structure according to the present invention;

fig. 3 is a schematic structural diagram of a telescopic assembly and a filter assembly of a frequency converter with a bidirectional ventilation structure according to the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a frequency converter cabinet; 2. a frequency converter main body; 3. an air outlet; 4. a first through hole; 5. a second through hole; 6. a first filter screen; 7. a sleeve; 8. an annular placing groove; 9. a telescoping assembly; 10. a filter assembly; 11. a thread groove; 12. a magnetic dust screen; 13. an exhaust fan; 14. a cabinet door; 901. a circular block; 902. a soft cushion layer; 903. a ferrule; 904. a spring; 1001. a step; 1002. a second filter screen; 1003. an annular gasket.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the examples are only for explaining the present invention and are not intended to limit the scope of the present invention. The invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. Advantages and features of the present invention will become apparent from the following description and from the claims. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 3, the present invention provides a frequency converter having a bidirectional ventilation structure: including converter rack 1 and converter

main part

2, 2 fixed mounting of converter main part are at the interior back wall of converter rack 1, the top fixed mounting of converter rack 1 has air exit 3, there is cabinet door 14 front surface of converter rack 1 through hinge rotation connection, first through-hole 4 and second through-hole 5 have been seted up on the surface of cabinet door 14, the equal fixed mounting in inside of first through-hole 4 and second through-hole 5 has first filter screen 6, the inside of second through-hole 5 is provided with sleeve 7, sleeve 7 is kept away from second through-hole 5 one side and has been seted up annular standing groove 8, the inside of annular standing groove 8 is provided with telescopic component 9, telescopic component 9's inside is provided with filter component 10. Wherein, the inside correspondence of converter main part 2 is provided with first cooling blower and second cooling blower, and first cooling blower is corresponding with first through-hole 4, and the second cooling blower is corresponding with second through-hole 5, and the second cooling blower passes through the pipeline and the switch-on of air exit 3.

Specifically, a thread groove 11 is formed in the rear surface of the cabinet door 14, the thread groove 11 is correspondingly communicated with the second through hole 5, and the sleeve 7 is fixedly connected with the surface of the cabinet door 14 through the thread groove 11. The sleeve 7 adopts a thread mounting mode, so that the sleeve 7 is convenient to mount and dismount quickly.

Specifically, two first filter screens 6 are arranged in a vertically symmetrical and staggered manner, wherein the first filter screens 6 in the first through holes 4 are arranged close to the frequency converter main body 2. The magnetic dustproof net 12 is arranged in the first through hole 4, and the magnetic dustproof net 12 is attached to the first filter screen 6 in the first through hole 4. The inside that little debris such as dust got into converter rack 1 in from first through-hole 4 can effectively be reduced to the first filter screen 6 of the cooperation of magnetism dust screen 12 that sets up, guarantees inside clean health, and 12 easy dismounting of magnetism dust screen simultaneously clear up and change also very save worry.

Specifically, two exhaust fans 13 are embedded on the surface of the cabinet door 14 and near the top. Through the cooperation of exhaust fan 13, first through-hole 4 and first filter screen 6 isotructure, can make the hot-air between converter main part 2 and the converter rack 1 to and the inside hot-air of converter main part 2 exchanges with the lower air of the outer temperature of converter rack 1, thereby reduces the temperature in the converter rack 1, has increased the degree of safety of converter, has prolonged life.

Specifically, the telescopic assembly 9 comprises a circular block 901, a cushion layer 902 is fixedly mounted on one side of the circular block 901, a collar 903 is fixedly mounted on the other side of the circular block 901, and a spring 904 is fixedly mounted between the collar 903 and the groove wall of the annular placing groove 8. Through the cooperation of sleeve 7, circular block 901, cushion layer 902 and spring 904 isotructure during the use, can be better laminate with the surface of converter main part 2, make the lower air of temperature can directly be taken out from converter rack 1 to the second cooling blower to the realization is to the purpose of 2 rapid cooling of converter main part, has avoided 1 inside hot-air of converter rack to get into 2 insides of converter main part simultaneously, has guaranteed holistic normal operating.

Specifically, filtering component 10 includes step 1001 and annular gasket 1003, and step 1001 and telescoping assembly 9 fixed connection, annular gasket 1003 and telescoping assembly 9 threaded connection are provided with second filter screen 1002 between step 1001 and the annular gasket 1003. When air with lower temperature is extracted, through the matching of the structures such as the step 1001, the second filter screen 1002 and the annular gasket 1003, fine impurities such as dust in the air can be effectively prevented from entering the inside of the frequency converter main body 2 from the second through hole 5 and the sleeve 7; and annular gasket 1003 adopts threaded connection, has made things convenient for the dismouting of second filter screen 1002, and then provides very big facility for the maintenance and the change in later stage.

The specific working principle and the using method of the invention are as follows: when in use, the sleeve 7, the round block 901, the soft cushion layer 902, the spring 904 and other structures are matched, so that the second cooling fan can be better attached to the surface of the frequency converter main body 2, and the second cooling fan can directly extract air with lower temperature from the outside of the frequency converter cabinet 1, so that the aim of quickly cooling the frequency converter main body 2 is fulfilled, and meanwhile, hot air in the frequency converter cabinet 1 is prevented from entering the inside of the frequency converter main body 2; in the process, through the matching of the structures such as the step 1001, the second filter screen 1002 and the annular gasket 1003, fine impurities such as dust in the air can be effectively prevented from entering the inside of the frequency converter main body 2 from the second through hole 5 and the sleeve 7; the annular gasket 1003 is in threaded connection, so that the second filter screen 1002 can be conveniently disassembled and assembled; simultaneously through the cooperation of exhaust fan 13, first through-hole 4 and first filter screen 6 isotructure, can make the hot-air between converter main part 2 and the converter rack 1 to and the inside hot-air of converter main part 2 exchanges with the lower air of the outer temperature of converter rack 1, thereby reduce the temperature in the converter rack 1, increased the degree of safety of converter, prolonged life, the experience of product is felt better, and the practicality is higher.

The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner; the present invention may be readily implemented by those of ordinary skill in the art as illustrated in the accompanying drawings and described above; however, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the scope of the invention as defined by the appended claims; meanwhile, any changes, modifications, and evolutions of the equivalent changes of the above embodiments according to the actual techniques of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a converter with two-way ventilation structure, includes converter rack (1) and converter main part (2), its characterized in that: the utility model discloses a novel frequency converter, including converter main part (2), door, cabinet door, sleeve (7), first through-hole (4) and second through-hole (5), the equal fixed mounting in inside of first through-hole (4) and second through-hole (5) has first filter screen (6), the inside of second through-hole (5) is provided with sleeve (7), sleeve (7) are kept away from second through-hole (5) one side and are seted up annular standing groove (8), the inside of annular standing groove (8) is provided with flexible subassembly (9), the inside of flexible subassembly (9) is provided with filter component (10).

2. A frequency converter having a bi-directional ventilation structure according to claim 1, wherein: the rear surface of the cabinet door (14) is provided with a thread groove (11), the thread groove (11) is correspondingly communicated with the second through hole (5), and the sleeve (7) is fixedly connected with the surface of the cabinet door (14) through the thread groove (11).

3. A frequency converter having a bi-directional ventilation structure according to claim 1, wherein: the inside of first through-hole (4) is provided with magnetism dust screen (12), magnetism dust screen (12) and the laminating of first filter screen (6) in first through-hole (4).

4. A frequency converter having a bi-directional ventilation structure according to claim 1, wherein: two first filter screen (6) are the crisscross setting of symmetry from top to bottom, wherein in first through-hole (4) first filter screen (6) are close to converter main part (2) and set up.

5. A frequency converter having a bi-directional ventilation structure according to claim 1, wherein: two exhaust fans (13) are embedded on the surface of the cabinet door (14) and close to the top.

6. A frequency converter having a bi-directional ventilation structure according to claim 1, wherein: the telescopic assembly (9) comprises a circular block (901), a soft cushion layer (902) is fixedly mounted on one side of the circular block (901), a ferrule (903) is fixedly mounted on the other side of the circular block (901), and a spring (904) is fixedly mounted between the ferrule (903) and the groove wall of the annular placement groove (8).

7. A frequency converter having a bi-directional ventilation structure according to claim 1, wherein: the filter assembly (10) comprises a step (1001) and an annular gasket (1003), the step (1001) is fixedly connected with the telescopic assembly (9), the annular gasket (1003) is in threaded connection with the telescopic assembly (9), and a second filter screen (1002) is arranged between the step (1001) and the annular gasket (1003).