CN217848663U - Active inner loop dehumidification condensation-proof power distribution cabinet - Google Patents

Abstract

An active internal circulation dehumidification and condensation prevention power distribution cabinet comprises a cabinet body, wherein a dehumidification device is installed in the cabinet body, and the dehumidification device comprises a machine shell, a drainage fan, a condensation assembly and a heating assembly which are sequentially connected and installed in the machine shell; the shell is provided with an air inlet corresponding to the drainage fan and an air outlet corresponding to the heating component; the drain pipe is arranged below the condensation component, is communicated with the condensation component and penetrates through the shell and the cabinet body to extend out of the outside. The utility model discloses an increased heating element in dehydrating unit, overcome current switch board and carry out dampproofing dehumidification operation through the semiconductor refrigeration piece, make electrical component because of the low temperature condensation easily, and then lead to the impaired dangerous problem that appears the short circuit even of electrical component working property, guarantee electrical component's normal work.

Description

Active inner loop dehumidification condensation switch board of preventing

Technical Field

The utility model relates to a switch board technical field, in particular to condensation switch board is prevented in active inner loop dehumidification.

Background

The power distribution cabinet is a common electrical device and is mainly used for mounting various circuit boards, switches, various instruments and the like. The dampproofing effect of current switch board is unsatisfactory, especially places and receives the erosion of rainwater easily at open air switch board, leads to internal circuit to wet easily.

One method for carrying out moisture-proof dehumidification operation on the power distribution cabinet is to arrange a semiconductor refrigeration piece inside the power distribution cabinet, wherein water vapor in the air inside the power distribution cabinet is in contact with the cold end of the semiconductor refrigeration piece to be condensed, and then is converted into liquid, and finally the liquid is discharged out of the power distribution cabinet. Although the method can perform moisture-proof and dehumidification operation on the power distribution cabinet, after the cooled air is contacted with the high-temperature electrical element, the air is easy to be condensed due to low temperature, and further the working performance of the electrical element is damaged and even the risk of short circuit occurs.

Disclosure of Invention

In view of the above, it is necessary to provide an active internal circulation dehumidification condensation-prevention power distribution cabinet with a simple structure.

An active internal circulation dehumidification and condensation prevention power distribution cabinet comprises a cabinet body, wherein a dehumidification device is installed in the cabinet body, and the dehumidification device comprises a machine shell, a drainage fan, a condensation assembly and a heating assembly which are sequentially connected and installed in the machine shell; the shell is provided with an air inlet hole corresponding to the drainage fan and an air outlet hole corresponding to the heating assembly; the drain pipe is arranged below the condensation component, is communicated with the condensation component and penetrates through the shell and the cabinet body to extend out of the outside.

Preferably, the inner cavity of the cabinet body is divided into a first cavity and a second cavity by the partition board; the drainage fan and the condensing assembly are arranged in the first cavity, and the heating assembly is arranged in the second cavity; the baffle is provided with a through hole for communicating the first cavity with the second cavity, and the air outlet end of the condensation component is communicated with the second cavity through the through hole.

Preferably, the condensation assembly comprises a condensation shell and a semiconductor refrigeration piece arranged in the condensation shell; the upper end and the through-hole intercommunication of condensation casing, lower extreme and drain pipe intercommunication.

Preferably, the drainage fan is installed in the side of condensation casing, and the side of condensation casing corresponds drainage fan and is provided with the opening.

Preferably, the dehumidifying apparatus further includes a connecting pipe, one end of which is communicated with the condensing case through the through hole, and an outlet of the other end of which faces the heating unit.

Preferably, the plurality of semiconductor refrigeration pieces are arranged in the condensation shell in a tube matrix shape, and two adjacent rows of semiconductor refrigeration pieces are arranged in a staggered mode.

Preferably, the air outlet hole is provided with two sides of the second chamber.

Preferably, a central controller is further installed in the first cavity, and the drainage fan, the condensing assembly and the heating assembly are all electrically connected with the central controller.

Preferably, a humidity sensor is further mounted in the cabinet body and electrically connected with the central controller.

Among the condensation switch board is prevented in the dehumidification of above-mentioned active inner loop, through the drainage fan and the condensation subassembly that set up, be convenient for inhale the condensation subassembly with the humid air of the internal portion of cabinet through drainage fan inside, through the condensation cooling, make the vapor condensation in the damp and hot air become liquid water, this liquid water passes through outside the drain pipe discharge cabinet body, dehumidify the air of the internal portion of cabinet, electrical components short circuit that wets has been avoided, the potential safety hazard is reduced, the corruption of humid air to metal electrical components has been reduced, and service life is prolonged.

The utility model discloses an increased heating element in dehydrating unit, carried out the heating of rising temperature through the air after heating element with the condensation, the air after the heating is discharged the cabinet internal, overcomes the low temperature air low temperature condensation after the electric element because of with the condensation in the current switch board, and then leads to the impaired dangerous problem that appears the short circuit even of electric element working property, guarantees electric element's normal work.

Drawings

Fig. 1 is a schematic structural diagram of an active internal circulation dehumidification anti-condensation power distribution cabinet.

Fig. 2 is a schematic structural diagram of the dehumidifying apparatus.

Fig. 3 is an exploded schematic view of the dehumidifying apparatus.

Fig. 4 is a schematic cross-sectional view of a dehumidifying apparatus.

Fig. 5 is a schematic diagram of the structure of the condensing assembly.

In the figure: the cabinet 10, the dehumidifying apparatus 20, the machine shell 21, the left shell 211, the partition 212, the right shell 213, the air inlet 214, the through hole 215, the air outlet 216, the first chamber 217, the second chamber 218, the draught fan 22, the condensing assembly 23, the condensing housing 231, the semiconductor cooling sheet 232, the air outlet 233, the water outlet 234, the heating assembly 24, the connecting pipe 25, the water outlet pipe 26, the rack 27 and the central controller 28.

Detailed Description

Referring to fig. 1 to 4, the active internal circulation dehumidification condensation-prevention power distribution cabinet includes a cabinet body 10, a dehumidification device 20 is installed in the cabinet body 10, and the dehumidification device 20 includes a casing 21, and a drainage fan 22, a condensation component 23 and a heating component 24 which are sequentially connected and installed in the casing 21; the casing 21 is provided with an air inlet hole 214 corresponding to the drainage fan 22 and an air outlet hole 216 corresponding to the heating assembly 24; a drain pipe 26 is arranged below the condensation assembly 23, and the drain pipe 26 is communicated with the condensation assembly 23 and penetrates through the casing 21 and the cabinet 10 to extend out of the outside. The utility model discloses an increased heating element 24 in dehydrating unit 20, carried out the heating that heaies up through the air after heating element 24 with the condensation, air after the heating emits into cabinet body 10 in, overcomes the low temperature air low temperature condensation after electric component because of with the condensation in the current switch board, and then leads to the impaired dangerous problem that appears the short circuit even of electric component working property, guarantees electric component's normal work.

The inner cavity of the cabinet 21 is provided with a partition 212, and the partition 212 divides the inner cavity of the cabinet 10 into a first chamber 217 and a second chamber 218. As shown in fig. 3, the housing 21 includes a left housing 211, a partition 212 and a right housing 213, the left housing 211 is connected to the left side of the partition 212 to form a first chamber 217, the right housing 213 is connected to the right side of the partition 212 to form a second chamber 218, the partition 212 is not a plate-shaped structure, and the partition 212 is formed by a base plate and four side plates.

Further, the draught fan 22 and the condensing assembly 23 are installed in the first chamber 217, and the heating assembly 24 is installed in the second chamber 218; a through hole 215 communicating the first chamber 217 and the second chamber 218 is formed in the partition plate 212, and the air outlet end of the condensing assembly 23 is communicated with the second chamber 218 through the through hole 215; the air inlet holes 214 are formed in the left shell 211, the air inlet holes 214 are formed in a single punched mode, the draught fan 22 is connected to the left shell 211 in an embedded mode through the air inlet holes 214, and the draught fan 22 can directly suck the humid air in the cabinet body 10 into the first cavity 217; the plurality of air outlet holes 216 are formed at both sides of the second chamber 218, and the air heated by the heating unit 24 is discharged into the cabinet 10 through the air outlet holes 216 at both sides.

The central controller 28 is further installed in the first chamber 217, the humidity sensor (not shown) is further installed in the cabinet 10, and the drainage fan 22, the condensing assembly 23, the heating assembly 24 and the temperature sensor are electrically connected with the central controller 28. When the humidity value detected by the humidity sensor is greater than or equal to the preset value, the central controller 28 controls the drainage fan 22, the condensation assembly 23 and the heating assembly 24 to work, and removes the water vapor in the cabinet 10, so that the cabinet 10 can be kept dry, short circuit of the electrical elements in the cabinet 10 due to humidity is avoided, and the service life of the electrical elements in the cabinet 10 is prolonged.

The dehumidifying apparatus 20 further includes a connecting pipe 25 and a frame 27, the cabinet 21 is mounted in the cabinet 10 through the frame 27, and the condensing assembly 23 communicates with the second chamber 218 through the connecting pipe 25.

Specifically, the condensing assembly 23 includes a condensing case 231 and a semiconductor chilling plate 232 disposed inside the condensing case 231; the upper end of the condensation housing 231 is communicated with the through hole 215, and the lower end is communicated with the drain pipe 26; one end of the connection pipe 25 is communicated with the condensing case 231 through the through hole 215, and the outlet of the other end thereof faces the heating unit 24; the draught fan 22 is installed on the side of the condensation shell 231, and the side of the condensation shell 231 is provided with an opening corresponding to the draught fan 22. A sealed channel is formed between the condensation shell 231 and the connecting pipe 25, and air introduced by the drainage fan 22 directly enters the condensation shell 231 for condensation treatment without affecting the central controller 28 in the first chamber 217; the condensed and cooled air enters the second chamber 218 through the connecting pipe 25, and the heating assembly 24 directly heats the air.

In this embodiment, the central controller 28 includes a control circuit board and a control panel, the heating assembly 24 is a temperature control heating plate, and a temperature control device (including a temperature sensor) is added on the basis of a conventional heating plate, so that the discharged air is controlled within a certain temperature, the temperature in the cabinet 10 is not raised too high, and the condensation with the low temperature of the electrical components is not too low.

As shown in fig. 4, the drainage fan 22 and the condensing assembly 23 are arranged in the utility model, so that the moist air inside the cabinet 10 can be conveniently sucked into the first chamber 217 through the drainage fan 22, and the moist air is condensed into liquid water through the condensing assembly 23 for cooling, and the liquid water is discharged out of the cabinet 10 through the drain pipe 26 to dehumidify the air inside the cabinet 10; air after the condensation cooling enters into second cavity 218 from first cavity 217 through connecting pipe 25, and after heating assembly 24's intensification heating, discharge to cabinet body 10 in through exhaust vent 216, overcome among the current switch board electric elements because of with the low temperature condensation of low temperature air after the condensation, and then lead to the impaired problem of the danger of short circuit even appearing of electric elements working property, guarantee electric elements's normal work.

As shown in fig. 5, the condensing case 231 has an upper end provided with an exhaust hole 233 and a lower end provided with a drain hole 234, the exhaust hole 233 is communicated with the connection pipe 25, and the drain hole 234 is communicated with the drain pipe 26; the plurality of semiconductor refrigeration pieces 232 are arranged in the condensation shell 231 in a matrix shape, two adjacent rows of semiconductor refrigeration pieces 232 are arranged in a staggered mode, a plurality of condensed water flowing channels for condensed liquid water to flow out are formed among the semiconductor refrigeration pieces 232, moist air enters the condensation shell 231 and contacts with the semiconductor refrigeration pieces 232, water drops formed by condensation fall on the condensed water flowing channels, and finally is discharged from the drain pipe 26 through the drain holes 234, and air after being cooled by condensation enters the connecting pipe 25 through the exhaust holes 233.

Because the switch board is conventional product, its structure is abundant different, no longer gives unnecessary details to cabinet body inner structure here.

Claims (9)

1. The utility model provides an active inner loop dehumidification condensation-proof power distribution cabinet, includes the cabinet body, its characterized in that: a dehumidifying device is arranged in the cabinet body, and comprises a casing, and a drainage fan, a condensing assembly and a heating assembly which are sequentially connected and arranged in the casing; the shell is provided with an air inlet corresponding to the drainage fan and an air outlet corresponding to the heating component; the drain pipe is arranged below the condensation component, is communicated with the condensation component and penetrates through the shell and the cabinet body to extend out of the outside.

2. The active inner loop dehumidification condensation-prevention power distribution cabinet of claim 1, characterized in that: a partition board is arranged in the inner cavity of the shell and divides the inner cavity of the cabinet body into a first cavity and a second cavity; the drainage fan and the condensing assembly are arranged in the first cavity, and the heating assembly is arranged in the second cavity; the baffle is provided with a through hole for communicating the first cavity with the second cavity, and the air outlet end of the condensation component is communicated with the second cavity through the through hole.

3. The active inner loop dehumidification condensation-prevention power distribution cabinet of claim 2, characterized in that: the condensation assembly comprises a condensation shell and a semiconductor refrigeration piece arranged in the condensation shell; the upper end of the condensing shell is communicated with the through hole, and the lower end of the condensing shell is communicated with the drain pipe.

4. The active inner loop dehumidification condensation-prevention power distribution cabinet of claim 3, characterized in that: the drainage fan is installed in the side of condensation casing, and the side of condensation casing corresponds drainage fan and is provided with the opening.

5. The active inner loop dehumidification condensation-prevention power distribution cabinet of claim 3, characterized in that: the dehumidifying device also comprises a connecting pipe, one end of the connecting pipe is communicated with the condensing shell through the through hole, and the outlet of the other end of the connecting pipe faces the heating component.

6. The active inner loop dehumidification condensation-prevention power distribution cabinet of claim 3, characterized in that: the plurality of semiconductor refrigerating sheets are arranged in the condensing shell in a tube matrix shape, and two adjacent rows of semiconductor refrigerating sheets are arranged in a staggered mode.

7. The active inner loop dehumidification condensation-prevention power distribution cabinet of claim 2, characterized in that: the air outlet is provided with two sides of the second cavity.

8. The active inner loop dehumidification condensation-prevention power distribution cabinet of claim 2, characterized in that: still install central controller in the first cavity, drainage fan, condensation subassembly and heating element all are connected with central controller electricity.

9. The active inner loop dehumidification condensation-prevention power distribution cabinet of claim 8, wherein: and a humidity sensor is also arranged in the cabinet body and is electrically connected with the central controller.

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