CN213126870U - Electrical cabinet provided with MGGH frequency converter - Google Patents
Electrical cabinet provided with MGGH frequency converter Download PDFInfo
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- CN213126870U CN213126870U CN202021194072.1U CN202021194072U CN213126870U CN 213126870 U CN213126870 U CN 213126870U CN 202021194072 U CN202021194072 U CN 202021194072U CN 213126870 U CN213126870 U CN 213126870U
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- frequency converter
- mggh
- fan
- converter
- cabinet body
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Abstract
The utility model provides an installation MGGH converter's regulator cubicle, include the cabinet body and install the converter on the internal upper portion of cabinet, the converter bottom is equipped with the fresh air inlet, and the top is equipped with the exhaust vent, cabinet body one side is equipped with air exit and air intake respectively along the direction of height, the outside of air exit is equipped with the exhaust fan, the outside of air intake is equipped with the inlet fan, the side bottom of the cabinet body is equipped with supplementary radiator unit, supplementary radiator unit includes left side supplementary radiator unit and right side supplementary radiator unit, installs the left and right sides at the cabinet body respectively. The utility model improves the heat dissipation efficiency in the electric appliance cabinet, reduces the hot air circulation phenomenon, reduces the internal low resistance channel, increases the auxiliary heat dissipation component, reduces the negative pressure zone generated by the lower part when the main fan of the frequency converter works, further reduces the hot air circulation, and ensures that the equipment can avoid the forced shutdown of the heat medium circulating pump caused by the faults of capacity reduction operation and the like caused by high temperature; the failure rate of the equipment is reduced, and the maintenance cost and the indirect loss are reduced.
Description
Technical Field
The utility model belongs to the technical field of the regulator cubicle, concretely relates to regulator cubicle of installation MGGH converter.
Background
For an electric cabinet with a frequency converter installed in the cabinet, a flow field condition that air is actively blown upwards exists in the cabinet. Because the electric cabinet body is placed on site for the pump room, high-humidity environment and possibility of water medium leakage exist, and the design of installation and forced ventilation in the cabinet is adopted for meeting the protection level requirement.
The existing cabinet body adopts an upper air outlet lower air inlet frequency converter to be installed on the upper portion of the cabinet body, the cabinet body still adopts a full-sealing and unilateral circulating heat radiation mode, and the middle portion and the lower portion of the cabinet body are respectively provided with a 500CFM flow fan, air is fed from the lower side, air is exhausted from the middle portion, and heat is radiated by matching with small heat radiation holes at the top and the bottom. The flow field principle of the electrical cabinet is that main cold source air is fed by a lower fan, is discharged to the upper part by a frequency converter after heat exchange of a frequency converter heat exchange group arranged on the upper part, and is sent out of the electrical cabinet by a middle fan. At the upper part of the electrical cabinet body, because the air exhaust of the fan of the frequency converter body is 318CFM, and only two heat dissipation windows with low opening areas are arranged nearby, the actual air exhaust volume is far lower than the air exhaust volume of the fan of the frequency converter body, and the air exhaust direction of the fan of the frequency converter body is vertical to the passive heat dissipation opening direction, the local heat dissipation efficiency is further reduced, so that a top high-pressure area is caused, the air exhaust resistance of the frequency converter is increased, a hot air recirculation channel is formed, and a large amount of hot air flows towards the air inlet direction of the frequency converter under the action of air pressure. And because the main exhaust fan is arranged in the middle of the electric cabinet and is positioned at the cooling inlet of the frequency converter, a local low-pressure area is formed at the cooling inlet of the frequency converter, because the main fan is far away from the inlet of the frequency converter, the air suction efficiency of a cooling group of the frequency converter is not obviously reduced, and simultaneously because of the occurrence of the low-pressure area in the middle, the air heated by hot air recirculation is carried away from the cabinet body by the middle fan, although the air temperature in the area of the cooling inlet of the frequency converter is still far higher than the air temperature of the original designed rated inlet by 40 ℃, an overheat shutdown accident is caused, and great loss is.
SUMMERY OF THE UTILITY MODEL
The utility model provides an installation MGGH converter's regulator cubicle, the operation is reliable, and the temperature is normal, and is noiseless, and makes the converter outage incident that arouses because of overheated become zero.
The technical scheme of the utility model is that: the utility model provides an installation MGGH converter's regulator cubicle, includes the cabinet body and installs the converter on the internal upper portion of cabinet, the converter bottom is equipped with the fresh air inlet, and the top is equipped with the exhaust vent, cabinet body one side is equipped with air exit and air intake respectively along the direction of height, the outside of air exit is equipped with the exhaust fan, the outside of air intake is equipped with the inlet fan, the side bottom of the cabinet body is equipped with supplementary radiator unit, supplementary radiator unit includes left supplementary radiator unit and right supplementary radiator unit, installs the left and right sides at the cabinet body respectively.
The scheme is further that the installation position of the air inlet fan is lower than the bottom of the frequency converter, and the distance between the air inlet fan and the exhaust fan is larger than the length of the frequency converter.
Furthermore, the air inlet and the air outlet are provided with dustproof pieces.
The scheme is further that the left auxiliary heat dissipation assembly and the right auxiliary heat dissipation assembly are louvers.
The scheme is further that dustproof pieces are arranged at the left auxiliary heat dissipation assembly and the right auxiliary heat dissipation assembly.
Scheme further, the dust keeper is the dust screen.
Further, the exhaust fan and the air inlet fan are fans with 1850CFM flow.
The utility model has the advantages that: the utility model improves the heat dissipation efficiency in the electric appliance cabinet, reduces the hot air circulation phenomenon, reduces the internal low resistance channel, increases the auxiliary heat dissipation component, reduces the negative pressure zone generated by the lower part when the main fan of the frequency converter works, further reduces the hot air circulation, and ensures that the equipment can avoid the forced shutdown of the heat medium circulating pump caused by the faults of capacity reduction operation and the like caused by high temperature; the cost for replacing and maintaining the frequency converter, the motor and the like can be avoided, the equipment failure rate is reduced, and the maintenance cost and the indirect loss are reduced.
Drawings
Fig. 1 is a schematic structural diagram of an electrical cabinet with an MGGH frequency converter installed therein according to the present invention;
fig. 2 is a front view of the interior of an electrical cabinet with an MGGH frequency converter installed therein;
fig. 3 is an external front view of an electrical cabinet with an MGGH frequency converter installed therein according to the present invention;
fig. 4 is a right side view of an electrical cabinet with an MGGH frequency converter installed therein according to the present invention;
fig. 5 is a left side view of an electrical cabinet with an MGGH frequency converter installed therein according to the present invention;
fig. 6 is a CFD thermal simulation diagram of an electrical cabinet with an MGGH frequency converter installed therein according to the present invention;
FIG. 7 is a CFD thermal simulation diagram of a prior art electrical cabinet;
wherein: 1. the cabinet body, 2, converter, 3, exhaust fan, 4, dustproof, 5, air inlet fan, 6, supplementary radiator unit, 61, right side supplementary radiator unit, 62, left side supplementary radiator unit.
Detailed Description
The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which a person skilled in the art can, without any creative effort, fully implement the present invention.
The utility model discloses a concrete implementation mode is: as shown in fig. 1-5, an electrical cabinet provided with an MGGH frequency converter comprises a cabinet body 1 and a frequency converter 2 installed on the upper portion of the cabinet body 1, wherein an air inlet is formed in the bottom of the frequency converter 2, an air outlet is formed in the top of the frequency converter, an air outlet and an air inlet are respectively formed in one side of the cabinet body 1 along the height direction, an exhaust fan 3 is arranged outside the air outlet, an air inlet fan 5 is arranged outside the air inlet, an auxiliary heat dissipation assembly 6 is arranged at the bottom of the side face of the cabinet body 1, and the auxiliary heat dissipation assembly 6 comprises a left auxiliary heat dissipation assembly 62 and a right auxiliary heat dissipation assembly 61 which are respectively installed on the left side and.
Further, the installation position of the air inlet fan 5 is lower than the bottom of the frequency converter 2, and the distance between the air inlet fan 5 and the exhaust fan 3 is larger than the length of the frequency converter 2.
Furthermore, the air inlet and the air outlet are provided with dust-proof pieces 4.
Further, the right and left auxiliary heat dissipating members 61 and 62 are louvers.
Further, the dust-proof member 4 is disposed at the right auxiliary heat dissipation assembly 61 and the left auxiliary heat dissipation assembly 62.
Further, the dust-proof piece 4 is a dust-proof net.
Further, the exhaust fan 3 and the intake fan 5 are fans with 1850CFM flow.
The utility model provides the high radiating efficiency in the electrical apparatus cabinet reduces the hot air circulation phenomenon to and reduce inside low resistance passageway, increase supplementary radiator unit and reduce the negative pressure zone that the lower part produced at converter main fan during operation, further reduce hot air circulation, make equipment can avoid the heat medium circulating pump that the volume of falling that the high temperature leads to caused troubles to be forced to stop the fortune, the heat dissipation result is as shown in figure 6, shown as figure 7 is prior art thermal field analysis result.
While the preferred embodiments of the present invention have been described, it is to be understood that the invention is not limited to the precise embodiments described, and that equipment and structures not described in detail are understood to be practiced as commonly known in the art; any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention will still fall within the protection scope of the technical solution of the present invention by those skilled in the art without departing from the technical solution of the present invention.
Claims (7)
1. The utility model provides an installation MGGH converter's regulator cubicle, includes the cabinet body and installs the converter on the internal upper portion of cabinet, the converter bottom is equipped with the fresh air inlet, and the top is equipped with the exhaust vent, its characterized in that, cabinet body one side is equipped with air exit and air intake respectively along the direction of height, the outside of air exit is equipped with the exhaust fan, the outside of air intake is equipped with the inlet fan, the side bottom of the cabinet body is equipped with supplementary radiator unit, supplementary radiator unit includes left side supplementary radiator unit and right side supplementary radiator unit, installs the left and right sides at the cabinet body respectively.
2. The electrical cabinet provided with the MGGH frequency converter as claimed in claim 1, wherein the fan inlet is installed at a position lower than the bottom of the frequency converter, and the distance between the fan inlet and the fan outlet is greater than the length of the frequency converter.
3. The electrical cabinet provided with the MGGH frequency converter as claimed in claim 2, wherein dust-proof members are arranged at the air inlet and the air outlet.
4. The electrical cabinet provided with an MGGH frequency converter according to claim 3, wherein the left and right auxiliary heat dissipation assemblies are louvers.
5. The electrical cabinet provided with the MGGH frequency converter as claimed in claim 4, wherein dust-proof members are disposed at the left and right auxiliary heat dissipation assemblies.
6. The electrical cabinet provided with the MGGH frequency converter as claimed in claim 5, wherein the dust-proof member is a dust-proof net.
7. The electrical cabinet equipped with an MGGH frequency converter as recited in claim 1, wherein the exhaust fan and the air inlet fan are 1850CFM flow fans.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021194072.1U CN213126870U (en) | 2020-06-24 | 2020-06-24 | Electrical cabinet provided with MGGH frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021194072.1U CN213126870U (en) | 2020-06-24 | 2020-06-24 | Electrical cabinet provided with MGGH frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213126870U true CN213126870U (en) | 2021-05-04 |
Family
ID=75673021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021194072.1U Active CN213126870U (en) | 2020-06-24 | 2020-06-24 | Electrical cabinet provided with MGGH frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213126870U (en) |
-
2020
- 2020-06-24 CN CN202021194072.1U patent/CN213126870U/en active Active
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