CN215421444U - Heat dissipation bin for explosion-proof control cabinet - Google Patents
Heat dissipation bin for explosion-proof control cabinet Download PDFInfo
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- CN215421444U CN215421444U CN202121933726.2U CN202121933726U CN215421444U CN 215421444 U CN215421444 U CN 215421444U CN 202121933726 U CN202121933726 U CN 202121933726U CN 215421444 U CN215421444 U CN 215421444U
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Abstract
The utility model discloses a heat dissipation bin for an explosion-proof control cabinet, which comprises a cabinet body, wherein an installation cavity for installing a high-power frequency converter is arranged in the cabinet body, and a heat dissipation cavity wrapped around the high-power frequency converter is arranged in the installation cavity; the heat dissipation cavity comprises a main cavity and a pressure cavity communicated with the main cavity; a heat conducting plate is arranged on one side outside the pressure cavity and is in external contact with the cavity wall of the pressure cavity; the upper end of the pressure cavity is provided with a drawing device which sucks the medium with heat in the main cavity into the pressure cavity. Has the advantages that: high-pressure gas in the pressure cavity can be output from the pressure relief device at the lower end; when the gas enters the pressure relief device from the pressure cavity, the friction force between escaping gas molecules is intensified due to the fact that the space is reduced and the pressure is increased, a large amount of work is done to leave most of heat of the exhausted gas in the pressure cavity, the gas exhausted from the pressure relief device is low-temperature gas, and the low-temperature gas enters the heat dissipation cavity; the circulation is reciprocal, increases the efficiency that the device dispels the heat to high-power converter.
Description
Technical Field
The utility model relates to a heat dissipation bin for an explosion-proof control cabinet, and belongs to the field of explosion-proof control cabinet equipment.
Background
With the rapid development of modern power technology and computer control technology, the technical revolution of electric transmission is promoted, a frequency converter is one of important electrical appliances widely used in the current industrial field, the frequency converter consists of a rectifying circuit, an intermediate circuit, an inverter and a control circuit, the frequency converter is a key part in an energy-saving control link and has large heat productivity, and therefore a control cabinet of the frequency converter is provided with a ventilation and heat dissipation channel and a ventilation and heat dissipation hole.
But long-time operation leads to heat greatly increased, if not in time to the converter cooling, leads to electronic component's damage easily, and the heat abstractor of current converter does not have great change to the heat dissipation problem, to the heat dissipation problem of converter, needs to improve the structure of the radiator of converter, makes it realize fully dispelling the heat through multiple radiating mode to ensure the normal work of converter.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a heat dissipation bin for an explosion-proof control cabinet, which can effectively solve the problem of low heat dissipation efficiency of a high-power frequency converter in the explosion-proof control cabinet.
In order to solve the technical problems, the utility model is realized by the following technical scheme:
the high-power frequency converter is characterized by comprising a cabinet body, wherein an installation cavity for installing the high-power frequency converter is arranged in the cabinet body, and a heat dissipation cavity wrapped around the high-power frequency converter is arranged in the installation cavity; the heat dissipation cavity comprises a main cavity and a pressure cavity communicated with the main cavity; one side outside the pressure cavity is provided with a heat conducting plate, the upper end of the pressure cavity is provided with an extraction device for sucking the medium with heat in the main cavity into the pressure cavity, and the lower end of the pressure cavity is provided with a pressure relief device for outputting the medium out of the pressure cavity.
Preferably: the pressure cavity is formed by a box body arranged in the cabinet body, an exhaust fan is arranged at the upper part of the box body, and an output pipe is arranged at the lower part of the box body; the box wall on one side of the box body is composed of the heat conducting plate, and the heat conducting plate and the cabinet wall of the cabinet body are integrally formed.
Preferably: the box wall of the box body is made of heat insulating materials except for the cabinet wall of the cabinet body.
Preferably: the high-power frequency converter is installed outside the box wall on the other side of the box body, a blower is arranged at the upper end of the high-power frequency converter, the output end of the output pipe is located below the high-power frequency converter, and the exhaust fan is arranged above the blower.
Preferably: the output pipe comprises a mounting ring in threaded connection with the box body, a flow velocity ring in threaded connection with the mounting ring, and an exhaust pipe arranged at the lower end of the flow velocity ring; and a trumpet-shaped exhaust passage is arranged in the flow velocity ring.
Compared with the prior art, the utility model has the advantages that:
high-pressure gas in the pressure cavity is output from a pressure relief device at the lower end, the lower end of the pressure cavity is provided with a plurality of pressure relief holes, and the pressure relief devices are arranged on the pressure relief holes; when the gas enters the pressure relief device from the pressure cavity, the friction force between escaping gas molecules is intensified due to the fact that the space is reduced and the pressure is increased, a large amount of work is done to leave most of heat of the exhausted gas in the pressure cavity, the gas exhausted from the pressure relief device is low-temperature gas, and the low-temperature gas enters the heat dissipation cavity; the circulation is repeated, and the heat dissipation efficiency of the device on the high-power frequency converter can be improved.
Drawings
For ease of illustration, the utility model is described in detail by the following detailed description and the accompanying drawings.
FIG. 1 is a schematic view of the internal structure of the present invention;
FIG. 2 is a left side view of the present invention;
FIG. 3 is a cross-sectional view of an outlet tube of the present invention;
fig. 4 is a perspective view of the case of the present invention.
Description of reference numerals:
1. a cabinet body; 2. a high-power frequency converter; 3. a heat conducting plate; 4. a box body; 5. an exhaust fan; 6. an output pipe; 7. a blower; 8. a mounting ring; 9. a flow rate loop; 10. and (4) exhausting the gas.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1-4, an embodiment of a heat dissipation bin for a flameproof control cabinet of the present invention includes a cabinet body 1, wherein a mounting cavity for mounting a high-power frequency converter 2 is arranged in the cabinet body 1, and a heat dissipation cavity wrapped around the high-power frequency converter 2 is arranged in the mounting cavity; the heat dissipation cavity comprises a main cavity and a pressure cavity communicated with the main cavity; a heat conducting plate 3 is arranged on one side outside the pressure cavity, and the heat conducting plate 3 is in external contact with the cavity wall of the pressure cavity; the upper end of the pressure cavity is provided with an extraction device for sucking the medium with heat in the main cavity into the pressure cavity, and the lower end of the pressure cavity is provided with a pressure relief device for outputting the medium out of the pressure cavity.
The working principle of the device is that the high-power frequency converter 2 generates heat when working and is dispersed in the heat dissipation cavity, the medium utilizes the extraction equipment to pump hot air in the heat dissipation cavity into the pressure cavity and concentrate the heat in the pressure cavity, then the heat of the pressure cavity is conducted to the heat conduction plate 3 in a heat conduction mode, the heat is transmitted out through the heat conduction plate 3, and the hot air in the pressure cavity is cooled; high-pressure gas in the pressure cavity can be output from a pressure relief device at the lower end, the lower end of the pressure cavity is provided with a plurality of pressure relief holes, and the pressure relief devices are arranged on the pressure relief holes; when the gas enters the pressure relief device from the pressure cavity, the friction force between escaping gas molecules is intensified due to the fact that the space is reduced and the pressure is increased, a large amount of work is done to leave most of heat of the exhausted gas in the pressure cavity, the gas exhausted from the pressure relief device is low-temperature gas, and the low-temperature gas enters the heat dissipation cavity; the circulation is repeated in this way, and the heat dissipation efficiency of the device on the high-power frequency converter 2 can be improved.
The pressure cavity is composed of a box body 4 arranged in the cabinet body 1, the upper part of the box body 4 is provided with an exhaust fan 5, and the lower part is provided with an output pipe 6; the box wall at one side of the box body 4 is composed of a heat conducting plate 3, and the heat conducting plate 3 and the cabinet wall of the cabinet body 1 are integrally formed. The number of the exhaust fans 5 is three.
The arrangement of the box body 4 can distinguish a heat dissipation cavity from a pressure cavity, the arrangement of the exhaust fan 5 can pump hot air in the heat dissipation cavity into the box body 4, and the more the air is pumped, the higher the pressure in the box body 4 is; the output pipe 6 is used for outputting high-pressure gas in the box body 4 to complete the work of pressure relief and energy release.
The wall of the box body 4 is made of heat insulating materials except the wall of the cabinet body 1.
The heat that gets into in the box 4 can not be to the heat conduction heat in the heat dissipation chamber to can be to the heat conduction heat of the cabinet body 1, lead the heat out through heat-conducting plate 3.
The high-power frequency converter 2 is arranged outside the box wall at the other side of the box body 4, a blower 7 is arranged at the upper end of the high-power frequency converter 2, the output end of the output pipe 6 is positioned below the high-power frequency converter 2, and the exhaust fan 5 is arranged above the blower 7.
Therefore, the air flow in the installation cavity is regular by the blower 7, the exhaust fan 5 and the output pipe 6 at the lower end of the box body 4, and the high-power frequency converter 2 can be continuously subjected to heat dissipation operation.
The output pipe 6 comprises a mounting ring 8 in threaded connection with the box body 4, a flow velocity ring 9 in threaded connection with the mounting ring 8, and an exhaust pipe 10 arranged at the lower end of the flow velocity ring 9; a trumpet-shaped exhaust passage is provided in the flow rate ring 9.
The flow velocity ring 9 is in a horn shape, because the space becomes small and the pressure becomes large, the friction force between escaping gas molecules is intensified, a large amount of work is done to leave most of the heat of the exhausted gas in the pressure cavity, the exhausted gas from the pressure relief device is low-temperature gas, and the low-temperature gas enters the heat dissipation cavity; the circulation is repeated in this way, and the heat dissipation efficiency of the device on the high-power frequency converter 2 can be improved.
The heat conducting plate 3 of the device can be provided with a fluid cooling system to accelerate the output of heat.
The above description is only an embodiment of the present invention, but the technical features of the present invention are not limited thereto, and any changes or modifications within the technical field of the present invention by those skilled in the art are covered by the claims of the present invention.
Claims (5)
1. The utility model provides a flame proof is heat dissipation storehouse for switch board which characterized in that: the high-power frequency converter is characterized by comprising a cabinet body (1), wherein an installation cavity for installing a high-power frequency converter (2) is arranged in the cabinet body (1), and a heat dissipation cavity wrapped around the high-power frequency converter (2) is arranged in the installation cavity;
the heat dissipation cavity comprises a main cavity and a pressure cavity communicated with the main cavity; one side outside the pressure cavity is provided with a heat conducting plate (3), the upper end of the pressure cavity is provided with an extraction device for sucking the medium with heat in the main cavity into the pressure cavity, and the lower end of the pressure cavity is provided with a pressure relief device for outputting the medium out of the pressure cavity.
2. The heat dissipation bin for the flameproof control cabinet according to claim 1, characterized in that: the pressure cavity is formed by a box body (4) arranged in the cabinet body (1), an exhaust fan (5) is arranged at the upper part of the box body (4), and an output pipe (6) is arranged at the lower part of the box body; the box wall on one side of the box body (4) is composed of the heat conducting plate (3), and the heat conducting plate (3) and the cabinet wall of the cabinet body (1) are integrally formed.
3. The heat dissipation bin for the flameproof control cabinet according to claim 2, characterized in that: the box wall of the box body (4) is made of heat insulation materials except for the box wall of the cabinet body (1).
4. The heat dissipation bin for the flameproof control cabinet according to claim 3, characterized in that: high-power converter (2) are installed outside the tank wall of box (4) opposite side, just high-power converter (2) upper end is provided with hair-dryer (7), the output of output tube (6) is located high-power converter (2) below, air exhauster (5) set up hair-dryer (7) top.
5. The heat dissipation bin for the flameproof control cabinet according to claim 4, characterized in that: the output pipe (6) comprises a mounting ring (8) in threaded connection with the box body (4), a flow velocity ring (9) in threaded connection with the mounting ring (8), and an exhaust pipe (10) arranged at the lower end of the flow velocity ring (9); and a trumpet-shaped exhaust passage is arranged in the flow velocity ring (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121933726.2U CN215421444U (en) | 2021-08-17 | 2021-08-17 | Heat dissipation bin for explosion-proof control cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121933726.2U CN215421444U (en) | 2021-08-17 | 2021-08-17 | Heat dissipation bin for explosion-proof control cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215421444U true CN215421444U (en) | 2022-01-04 |
Family
ID=79663659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121933726.2U Active CN215421444U (en) | 2021-08-17 | 2021-08-17 | Heat dissipation bin for explosion-proof control cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215421444U (en) |
-
2021
- 2021-08-17 CN CN202121933726.2U patent/CN215421444U/en active Active
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