CN219660284U - Dampproofing frequency conversion cabinet - Google Patents
Dampproofing frequency conversion cabinet Download PDFInfo
- Publication number
- CN219660284U CN219660284U CN202321057678.4U CN202321057678U CN219660284U CN 219660284 U CN219660284 U CN 219660284U CN 202321057678 U CN202321057678 U CN 202321057678U CN 219660284 U CN219660284 U CN 219660284U
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- CN
- China
- Prior art keywords
- air
- cabinet
- air inlet
- cabinet body
- casing
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 8
- 239000004065 semiconductor Substances 0.000 claims abstract description 24
- 238000005057 refrigeration Methods 0.000 claims abstract description 16
- 238000007664 blowing Methods 0.000 claims abstract description 7
- 238000001704 evaporation Methods 0.000 claims description 16
- 230000002745 absorbent Effects 0.000 abstract description 11
- 239000002250 absorbent Substances 0.000 abstract description 11
- 238000010030 laminating Methods 0.000 abstract description 3
- 230000008020 evaporation Effects 0.000 description 10
- 238000005192 partition Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Abstract
The utility model relates to the technical field of frequency conversion cabinets, in particular to a dampproof frequency conversion cabinet. Including the cabinet body, the external one side of cabinet is provided with dehydrating unit, dehydrating unit includes the casing, be provided with air intake and air outlet on the casing, the inside horizontally semiconductor refrigeration piece that is provided with of casing, the semiconductor refrigeration piece is with the cold room of casing internal portion with the air intake intercommunication and with the hot chamber of air outlet intercommunication, the upper and lower surface laminating of semiconductor refrigeration piece respectively has the last heat transfer piece that is located the hot room and is located the lower heat transfer piece of cold room, the interior bottom surface of casing is provided with a plurality of recesses with external intercommunication, the internal air inlet pipeline that is provided with the cold room intercommunication and the return air pipeline that is connected with the hot chamber of cabinet, be provided with the blowing mouth on the air inlet pipeline, be provided with the fan on the return air pipeline. The utility model does not need a moisture absorbent, thereby saving the trouble of replacing the moisture absorbent.
Description
Technical Field
The utility model relates to the technical field of frequency conversion cabinets, in particular to a dampproof frequency conversion cabinet.
Background
The variable frequency cabinet is a control cabinet using the frequency converter to drag the power device, has good starting performance, speed regulation performance and energy-saving effect, can generate heat in the working process, needs to be ventilated with the outside to emit the heat, but under the humid environment, moisture can enter the variable frequency cabinet along with wind, and the circuit board in the variable frequency cabinet is easy to corrode or cause short circuit to damage, so the variable frequency cabinet needs to have moisture resistance. In the prior art, a moisture absorbent (drying agent) is generally arranged in the cabinet body to remove moisture in the cabinet body, however, when the moisture absorbent absorbs a large amount of moisture after a period of time, the moisture absorption performance is seriously reduced, and in order to keep the moisture resistance of the cabinet body, the moisture absorbent needs to be replaced frequently, which is troublesome.
Disclosure of Invention
The utility model aims to solve the technical problems, and provides the dampproof variable frequency cabinet which does not need a moisture absorbent and thus omits the trouble of replacing the moisture absorbent.
In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a dampproofing variable frequency cabinet, includes the cabinet body, the external one side of cabinet is provided with dehydrating unit, dehydrating unit includes the casing, be provided with air intake and air outlet on the casing, the inside horizontally semiconductor refrigeration piece that is provided with of casing, the semiconductor refrigeration piece is with the cold room of casing internal portion with the air intake intercommunication and with the hot chamber of air outlet intercommunication, the upper and lower surface laminating of semiconductor refrigeration piece respectively has the last heat transfer piece that is located the hot room and is located the lower heat transfer piece of cold room, the interior bottom surface of casing is provided with a plurality of recesses with external intercommunication, the internal portion of cabinet is provided with the air inlet pipeline with cold room intercommunication and the return air pipeline with the hot chamber intercommunication, be provided with the wind inlet on the air inlet pipeline, wind mouth department is provided with the fan, be provided with the return air on the return air pipeline.
Further optimize this technical scheme, the inside baffle that is higher than the air intake edge in the top that is provided with of one side of air intake of casing, the semiconductor refrigeration piece is located the top of baffle one side, the bottom of baffle opposite side is provided with the evaporation board, the recess pierces through the baffle, the top of recess is higher than the upper surface of evaporation board, the air outlet is located the top that the one end of baffle was kept away from to the evaporation board.
Further optimize this technical scheme, be provided with a plurality of heat conduction posts on the upper heat transfer member.
According to the technical scheme, the lower heat exchange piece is provided with a plurality of fins, and the extending direction of the fins is perpendicular to the air inlet.
Further optimizing this technical scheme, the mouth of blowing is located the lower part of cabinet body.
Further optimize this technical scheme, the return air inlet is located the top of the cabinet body.
Compared with the prior art, the utility model has the following advantages: 1. the semiconductor refrigerating sheet is used for refrigerating to dry the inlet air, so that a moisture absorbent is not needed, and the trouble of replacing the moisture absorbent is avoided; 2. the wind discharged from the cabinet body can take away the heat generated by the semiconductor refrigerating sheet due to refrigeration, and the wind heated by the semiconductor refrigerating sheet is helpful for the evaporation of water on the evaporating plate, so that the water amount dropped on the ground is less or even not.
Drawings
Fig. 1 is a cross-sectional view of a moisture-proof variable frequency cabinet.
Fig. 2 is a schematic structural diagram of a dampproof variable frequency cabinet.
Fig. 3 is a schematic structural view of the dehumidifying apparatus.
Fig. 4 is an enlarged view of fig. 3 at i.
In the figure: 1. a cabinet body; 11. an air inlet pipeline; 12. an air return pipeline; 13. a fan; 2. a dehumidifying device; 21. an air inlet; 22. an air outlet; 23. an evaporation plate; 24. a partition plate; 25. a lower heat exchange member; 26. a semiconductor refrigeration sheet; 27. an upper heat exchange member; 28. a groove.
Detailed Description
The objects, technical solutions and advantages of the present utility model will become more apparent by the following detailed description of the present utility model with reference to the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the utility model. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present utility model.
The specific embodiment is as follows: referring to fig. 1-4, a dampproof frequency conversion cabinet comprises a cabinet body 1, wherein a frequency converter and electrical elements are arranged in the cabinet body 1. The cabinet body 1 is provided with dehydrating unit 2 on one side outside, dehydrating unit 2 includes the casing, be provided with air intake 21 and air outlet 22 on the casing, both are best not in the same side of casing, the inside horizontal semiconductor refrigeration piece 26 that is provided with of casing, semiconductor refrigeration piece 26 lower surface refrigeration, upper surface heats, the semiconductor refrigeration piece 26 is with the cold room of casing internal portion with air intake 21 intercommunication and with the hot chamber of air outlet 22 intercommunication, hot chamber and cold room do not directly communicate, the upper and lower surface laminating of semiconductor refrigeration piece 26 respectively has the last heat transfer piece 27 that is located the hot room and is located the lower heat transfer piece 25 of cold room, the interior bottom surface of casing is provided with a plurality of recesses 28 with external intercommunication for the drainage, the inside air inlet pipeline 11 and the return air pipeline 12 of hot chamber intercommunication that are provided with of cabinet body 1, air inlet pipeline 11 and return pipeline 12 do not directly communicate, are provided with the spacer between the two positions that correspond of semiconductor refrigeration piece 26 and keep apart both, be provided with on air inlet pipeline 11, the fan 13 is provided with to this air inlet, this air inlet 13 is provided with to the fan, and the air inlet is provided with the internal to blow down opening 13. The sealing effect of the cabinet body 1 is better, so that when the fan 13 blows air into the cabinet body 1, the air in the cabinet body 1 can enter the air return port and finally be discharged to the outside. In order to enhance the return air effect, a fan 13 may be disposed at the air outlet 22, and the fan 13 blows air into the return air duct 12.
Further, a partition plate 24 with the top higher than the upper edge of the air inlet 21 is arranged at one side of the air inlet 21 in the shell, the semiconductor refrigerating sheet 26 is positioned at the top of one side of the partition plate 24, an evaporation plate 23 is arranged at the bottom of the other side of the partition plate 24, the groove 28 penetrates through the partition plate 24, the top of the groove 28 is higher than the upper surface of the evaporation plate 23, and the air outlet 22 is positioned above one end, far away from the partition plate 24, of the evaporation plate 23. The hot air passing through the hot chamber may be blown on the evaporation plate 23 to evaporate water thereon.
Further, a plurality of heat conducting columns are arranged on the upper heat exchanging element 27.
Further, the lower heat exchanging member 25 is provided with a plurality of fins, and the extending direction of the fins is perpendicular to the air inlet 21, and due to the low temperature of the fins, part of the moisture in the air inlet is condensed on the fins, so that the air inlet is dried, and the moisture condensed on the fins flows down into the grooves 28 and then flows onto the evaporating plate 23.
Further, the air blowing port is located at the lower part of the cabinet body 1, and the air return port is located at the top of the cabinet body 1, and most of the air entering the air return port is hot air because the hot air is easy to rise.
Working principle: when the fan 13 works, external air enters the cold room (namely, the right side of the partition plate 24 and the lower side of the semiconductor refrigerating sheet 26 in fig. 3) from the air inlet 21, the lower heat exchange piece 25 is low in temperature, the air is dried and cooled when passing through the lower heat exchange piece 25, then is blown into the cabinet body 1 from the air blowing opening through the air inlet pipeline 11 by the fan 13, the interior of the cabinet body 1 is cooled and takes away a part of heat in the cabinet body 1, the air in the cabinet body 1 enters the return air pipeline 12 from the return air opening and is blown into the hot room (namely, the upper side of the semiconductor refrigerating sheet 26 in fig. 3), the heated air flow is heated, and the heated air flow is blown onto the evaporating plate 23 while the heat on the upper surface of the semiconductor refrigerating sheet 26 is taken away, so that the evaporation of water on the upper surface can be facilitated, and the water amount dropped on the ground is small or even absent.
The dampproof variable frequency cabinet does not need a moisture absorbent, thereby saving the trouble of replacing the moisture absorbent.
Claims (6)
1. The utility model provides a dampproofing frequency conversion cabinet, includes the cabinet body (1), its characterized in that: the cabinet is characterized in that a dehumidifying device (2) is arranged on one side of the outside of the cabinet body (1), the dehumidifying device (2) comprises a shell, an air inlet (21) and an air outlet (22) are formed in the shell, a horizontal semiconductor refrigerating sheet (26) is arranged inside the shell, the semiconductor refrigerating sheet (26) divides the inside of the shell into a cold chamber communicated with the air inlet (21) and a hot chamber communicated with the air outlet (22), an upper heat exchange piece (27) located the hot chamber and a lower heat exchange piece (25) located the cold chamber are respectively attached to the upper surface and the lower surface of the semiconductor refrigerating sheet (26), a plurality of grooves (28) communicated with the outside are formed in the inner bottom surface of the shell, an air inlet pipeline (11) communicated with the cold chamber and an air return pipeline (12) communicated with the hot chamber are formed in the inside of the cabinet body (1), an air blowing opening is formed in the air inlet pipeline (11), a fan (13) is arranged at the air blowing opening, and an air return opening is formed in the pipeline (12).
2. A moisture resistant variable frequency cabinet as claimed in claim 1 wherein: inside baffle (24) that are higher than air intake (21) edge in the top of being provided with of casing one side of air intake (21), semiconductor refrigeration piece (26) are located the top of baffle (24) one side, the bottom of baffle (24) opposite side is provided with evaporating plate (23), recess (28) penetrate baffle (24), the top of recess (28) is higher than the upper surface of evaporating plate (23), air outlet (22) are located the top of the one end that baffle (24) was kept away from to evaporating plate (23).
3. A moisture resistant variable frequency cabinet as claimed in claim 1 wherein: a plurality of heat conducting columns are arranged on the upper heat exchange piece (27).
4. A moisture resistant variable frequency cabinet as claimed in claim 1 wherein: the lower heat exchange piece (25) is provided with a plurality of fins, and the extending direction of the fins is perpendicular to the air inlet (21).
5. A moisture resistant variable frequency cabinet according to any one of claims 1-4 wherein: the air blowing port is positioned at the lower part of the cabinet body (1).
6. A moisture resistant variable frequency cabinet according to any one of claims 1-4 wherein: the return air inlet is positioned at the top of the cabinet body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321057678.4U CN219660284U (en) | 2023-05-06 | 2023-05-06 | Dampproofing frequency conversion cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321057678.4U CN219660284U (en) | 2023-05-06 | 2023-05-06 | Dampproofing frequency conversion cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219660284U true CN219660284U (en) | 2023-09-08 |
Family
ID=87860552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321057678.4U Active CN219660284U (en) | 2023-05-06 | 2023-05-06 | Dampproofing frequency conversion cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219660284U (en) |
-
2023
- 2023-05-06 CN CN202321057678.4U patent/CN219660284U/en active Active
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