CN220291391U - Refrigeration dehumidification device and cabinet for electric power - Google Patents

Abstract

The utility model relates to the technical field of power distribution cabinets, in particular to a refrigeration and dehumidification device and an electric cabinet. The refrigerating and dehumidifying device is used for an electric cabinet, the electric cabinet is provided with an inner cavity, the refrigerating and dehumidifying device comprises connecting pipes, two ends of each connecting pipe are communicated with the inner cavity, an air circulation machine and a refrigerating and dehumidifying mechanism are arranged on each connecting pipe, the air circulation machine can be used for driving air in the inner cavity to enter the connecting pipes, and after the air is refrigerated or/and dehumidified by the refrigerating and dehumidifying mechanism, the air returns to the inner cavity through the connecting pipes. The electric cabinet comprises the refrigeration and dehumidification device. The utility model provides a refrigeration and dehumidification device and an electric cabinet, which are used for relieving the technical problem that the refrigeration and dehumidification effects of a power distribution cabinet in the prior art are poor.

Description

Refrigeration dehumidification device and cabinet for electric power

Technical Field

The utility model relates to the technical field of power distribution cabinets, in particular to a refrigeration and dehumidification device and an electric cabinet.

Background

The power distribution cabinet is power distribution equipment for distributing, controlling and metering electric energy and connecting cables in an electric power supply system, a high-voltage switch cabinet is used for general power supply offices and power substations, then the high-voltage switch cabinets are led out to a low-voltage power distribution cabinet at a low-voltage side after voltage reduction by a transformer, the low-voltage power distribution cabinet is connected to each power distribution panel, control box or switch box and the like, and the power distribution cabinet is equipment of a power distribution device which is internally assembled with some protection devices including a switch, a circuit breaker, a fuse, a button, an indicator lamp, an instrument and an electric wire into a whole and meets the design function requirement.

When a worker maintains the power distribution cabinet, the worker frequently finds that the power distribution cabinet is moist, and long-time steam in the power distribution cabinet can cause components and cables to go moldy, if the worker is not in time, even tripping and other problems affecting the normal operation of the components can occur, and great potential safety hazards are brought. However, in the prior art, a blower is mostly adopted to radiate heat and air the components in the power distribution cabinet, so that the refrigerating and dehumidifying effects are poor.

Accordingly, the present application provides a new refrigeration and dehumidification device and an electric cabinet for solving the above-described problems.

Disclosure of Invention

The utility model aims to provide a refrigeration and dehumidification device for relieving the technical problem that a power distribution cabinet in the prior art is poor in refrigeration and dehumidification effects.

The utility model further aims to provide the electric cabinet so as to further relieve the technical problem that the refrigeration and dehumidification effects of the power distribution cabinet in the prior art are poor.

Based on the first object, the present utility model provides a refrigeration and dehumidification device for an electric cabinet, wherein the electric cabinet is provided with an inner cavity;

the refrigerating and dehumidifying device comprises a connecting pipe with two ends communicated with the inner cavity, an air circulation machine and a refrigerating and dehumidifying mechanism are arranged on the connecting pipe, the air circulation machine can be used for driving air in the inner cavity to enter the connecting pipe, and after being refrigerated or/and dehumidified by the refrigerating and dehumidifying mechanism, the air returns to the inner cavity through the connecting pipe.

Further, the refrigeration and dehumidification mechanism comprises a refrigeration and dehumidification cavity, a first heat conduction fin assembly, a second heat conduction fin assembly arranged above the first heat conduction fin assembly, and a semiconductor refrigeration sheet clamped between the first heat conduction fin assembly and the second heat conduction fin assembly;

the first heat conduction fin assembly comprises a plurality of first heat conduction fins, each first heat conduction fin is inserted into the refrigerating and dehumidifying cavity, and the heat conduction fin surface of each first heat conduction fin is arranged along the circulation direction of air in the refrigerating and dehumidifying cavity.

Further, the refrigeration and dehumidification mechanism further comprises a fan, the second heat conduction fin assembly is provided with a fan mounting groove, and the fan is fixed in the fan mounting groove.

Further, the refrigeration and dehumidification device is further provided with a liquid collecting bucket communicated with the refrigeration and dehumidification cavity and a collecting bottle communicated with the liquid collecting bucket.

Further, the connecting pipes comprise a first connecting pipe and a second connecting pipe, and the first connecting pipe and the second connecting pipe are both arranged outside the electric power cabinet and are both communicated with the inner cavity;

the refrigerating and dehumidifying mechanism is arranged on the first connecting pipe, the air circulating machine is arranged on the second connecting pipe, and the air circulating machine can be used for driving air in the inner cavity to enter the first connecting pipe and flow through the second connecting pipe to return to the inner cavity after being refrigerated or/and dehumidified by the refrigerating and dehumidifying mechanism.

Further, the refrigeration and dehumidification device further comprises a third connecting pipe, one end of the first connecting pipe is communicated with the third connecting pipe, the other end of the first connecting pipe is communicated with the second connecting pipe, and the third connecting pipe and the second connecting pipe are respectively communicated with the inner cavity;

the electric power cabinet is further provided with an air outlet communicated with the inner cavity, one end of the third connecting pipe is communicated with the air outlet, the other end of the third connecting pipe is provided with an ash discharging port, and the ash discharging port is provided with a sealing plate.

Further, be provided with the filter screen subassembly in the third connecting pipe, the filter screen subassembly includes filter screen cylinder and with the support ring that filter screen cylinder one end is connected, third connecting pipe inner wall still is provided with the baffle ring, filter screen cylinder one end is passed through the support ring with the baffle ring butt, its other end with the shrouding butt.

By adopting the technical scheme, the refrigeration and dehumidification device has the following beneficial effects:

the cooling and dehumidifying device is used for an electric power cabinet, for example, a power distribution cabinet, a switch cabinet, or an electric power tool management cabinet, and the electric power cabinet will be described below as an example.

When the power distribution cabinet needs to be cooled and dehumidified, two ends of the connecting pipe are communicated with the inner cavity of the power distribution cabinet, the air circulation machine and the refrigerating and dehumidifying mechanism are started, air in the inner cavity enters the connecting pipe through the air circulation machine, and then returns to the inner cavity along the connecting pipe, so that the circulation of the air in the connecting pipe and the inner cavity is realized. The cooling and dehumidifying mechanism is used for cooling or/and dehumidifying air in the connecting pipe, on one hand, cooled air returns to the inner cavity, components, cables or electric tools and the like in the inner cavity can be cooled, the radiating effect of the components, cables or electric tools is achieved, on the other hand, the cooling and dehumidifying mechanism can enable water vapor in air flowing through the connecting pipe to be condensed and liquefied, accordingly the air dehumidifying effect is achieved, dry air returns to the inner cavity, the dehumidifying effect on the components, cables or electric tools in the inner cavity is achieved, and the technical problem that a power distribution cabinet in the prior art is poor in dehumidifying effect is solved.

Based on the second object, the utility model provides an electric cabinet, which comprises a cabinet body and the refrigeration and dehumidification device, wherein the cabinet body is provided with an inner cavity, an air outlet and an air inlet which are all communicated with the inner cavity, and a connecting pipe of the refrigeration and dehumidification device is communicated between the air outlet and the air inlet.

Further, the electric power cabinet further comprises a controller and a temperature and humidity sensor, and the temperature and humidity sensor, the air circulation machine and the refrigeration and dehumidification mechanism are all connected with the controller.

Further, the electric power cabinet further comprises a mounting device arranged in the inner cavity;

the mounting device comprises a mounting frame, wherein the mounting frame is provided with a plurality of transverse mounting bars and a plurality of vertical mounting bars, and the transverse mounting bars and the vertical mounting bars are respectively provided with a mounting structure capable of mounting components.

By adopting the technical scheme, the electric power cabinet has the following beneficial effects:

by arranging the refrigerating and dehumidifying device in the electric cabinet, the electric cabinet has all the advantages of the refrigerating and dehumidifying device, and the refrigerating and dehumidifying device is not described in detail.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a refrigeration and dehumidification device according to an embodiment of the present utility model;

FIG. 2 is an enlarged view of a part of the structure of the refrigerating and dehumidifying apparatus shown in FIG. 1;

FIG. 3 is a second enlarged view of a part of the refrigeration and dehumidification device shown in FIG. 1;

FIG. 4 is a schematic diagram of a power cabinet according to an embodiment of the present utility model;

FIG. 5 is a second schematic diagram of a power cabinet according to an embodiment of the present utility model;

FIG. 6 is a schematic view of a partial structure of the power cabinet shown in FIG. 5;

fig. 7 is a partial enlarged view of a portion a in fig. 6;

fig. 8 is a third schematic structural diagram of the power cabinet according to the embodiment of the utility model.

Reference numerals:

1-a cabinet body; 11-an air outlet; 12-air inlet;

2-connecting pipes; 21-a first connection tube; 22-a second connecting tube; 23-a third connecting tube;

3-an air circulator;

41-a refrigeration cassette; 42-semiconductor refrigerating sheets; 43-a first heat conducting fin assembly; 431—first heat conducting fins; 44-a second heat conducting fin assembly; 441-second heat conducting fins; 45-fans; 46-threaded connection;

51-a liquid collecting bucket; 52-collecting bottle; 53-viewing window;

61-closing plates; 62-a filter screen cylinder; 63-a baffle ring; 64-abutting ring;

71-a cabinet door; 72-supporting legs; 73-handle;

81-a temperature and humidity sensor; 82-a control panel;

91-mounting rack; 92-adjusting holes; 93-transverse mounting bars; 94-mounting holes; 95-first hole; 96-vertical mounting bars; 97-second well.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Example 1

Referring to fig. 1 in combination with fig. 8, the present embodiment provides a refrigeration and dehumidification device, which is used for an electric cabinet, the electric cabinet is provided with an inner cavity, the refrigeration and dehumidification device includes a connecting pipe 2 with two ends all connected to the inner cavity, an air circulator 3 and a refrigeration and dehumidification mechanism are disposed on the connecting pipe 2, the air circulator 3 can be used for driving air in the inner cavity to enter the connecting pipe 2, and after being cooled or/and dehumidified by the refrigeration and dehumidification mechanism, the air is returned to the inner cavity by the connecting pipe 2.

Wherein, both ends of connecting pipe 2 all communicate in the inner chamber, for example, cabinet body 1 still sets up gas outlet 11 and air inlet 12 that all communicate with the inner chamber, and connecting pipe 2 is connected between gas outlet 11 and air inlet 12, therefore air cycle machine 3 can make the air of inner chamber get into connecting pipe 2 from the gas outlet to after refrigeration dehumidification mechanism refrigeration or/and dehumidification, rethread connecting pipe 2 returns the inner chamber from the air inlet.

The cooling and dehumidifying apparatus is used for an electric power cabinet, for example, a power distribution cabinet, a switch cabinet, or an electric power tool management cabinet, and the electric power cabinet will be described below as an example.

When the power distribution cabinet needs to be cooled and dehumidified, the connecting pipe 2 is communicated between the air outlet 11 and the air inlet 12, two ends of the connecting pipe 2 are communicated with the inner cavity, the air circulation machine 3 and the refrigeration and dehumidification mechanism are started, air in the inner cavity enters the connecting pipe 2 from the air outlet 11 through the air circulation machine 3, flows to the air inlet 12 along the connecting pipe 2, returns to the inner cavity through the air inlet 12, and circulation of the air in the connecting pipe 2 and the inner cavity is achieved. The cooling air after cooling is returned to the inner cavity through the air inlet 12, so that components, cables or electric tools and the like in the inner cavity can be cooled, the radiating effect of the components, cables or electric tools is achieved, on the other hand, the cooling and dehumidifying mechanism can enable water vapor in air flowing through the connecting pipe 2 to condense and liquefy, and therefore the air dehumidifying effect is achieved, dry air is returned to the inner cavity through the air inlet 12, the dehumidifying effect of the components, cables or electric tools in the inner cavity is achieved, and the technical problem that a power distribution cabinet in the prior art is poor in dehumidifying effect is solved.

Preferably, referring to fig. 1 and 6, in the present embodiment, the cooling and dehumidifying mechanism includes a cooling and dehumidifying cavity, a first heat-conducting fin assembly 43, a second heat-conducting fin assembly 44 disposed above the first heat-conducting fin assembly 43, and a semiconductor cooling sheet 42 clamped between the first heat-conducting fin assembly 43 and the second heat-conducting fin assembly 44, for example, the cooling and dehumidifying mechanism includes a cooling box 41, the cooling and dehumidifying cavity is disposed in the cooling box 41, the cooling box 41 is disposed in the connecting pipe 2 and is communicated with the connecting pipe 2, and air flowing from the air outlet 11 to the air inlet 12 in the connecting pipe 2 can flow through the cooling and dehumidifying cavity.

Referring to fig. 3, the first heat-conducting fin assembly 43 includes a plurality of first heat-conducting fins 431, each of the first heat-conducting fins 431 is inserted into the cooling and dehumidifying cavity, and heat-conducting fins of each of the first heat-conducting fins 431 are disposed along a flowing direction of air in the cooling and dehumidifying cavity.

By means of the arrangement, circulating air can pass through the refrigerating and dehumidifying cavity when flowing in the connecting pipe 2, the first heat conducting fin assemblies 43 are cooled through the semiconductor refrigerating sheets 42, the first heat conducting fins 431 of the first heat conducting fin assemblies 43 are inserted into the refrigerating and dehumidifying cavity, so that the temperature in the refrigerating and dehumidifying cavity is reduced, heat flowing through the air in the refrigerating and dehumidifying cavity can be absorbed, the air is cooled, cooled air flows to the air inlet 12 from the connecting pipe 2 and enters the inner cavity, the purpose of cooling the components in the inner cavity is achieved, and when the temperature is reduced, the first heat conducting fin assemblies 43 can enable water vapor in the air to condense, so that the effects of cooling and dehumidifying are achieved.

Alternatively, the semiconductor refrigeration sheet 42 may be mounted to the refrigeration cassette 41, for example, by clamping, fastening, or screwing.

The semiconductor refrigerating sheet 42 is also called a thermoelectric refrigerating sheet, and is a heat pump, and it uses the Peltier effect of semiconductor materials, when direct current passes through a couple formed by connecting two different semiconductor materials in series, it can absorb heat and release heat at two ends of the couple, and can realize the purpose of refrigeration.

In this arrangement, when the semiconductor cooling fin 42 is operated, the cooling surface is cooled, and the temperature of the cooling and dehumidifying chamber is reduced by the first heat conduction fin assembly 43, so that the temperature of the air passing through the cooling and dehumidifying chamber is reduced, and the temperature of the cooling surface is increased, and heat is radiated by the second heat conduction fin assembly 44.

The heat conduction fin surfaces of the first heat conduction fins 431 are arranged along the circulation direction of air in the refrigeration and dehumidification cavity, so that a plurality of refrigeration channels are formed in the first heat conduction fins 431, the refrigeration area of the air is increased, and the refrigeration efficiency is improved; in addition, the refrigerating channel is arranged along the flowing direction of the air in the refrigerating and dehumidifying cavity, so that the resistance of the first heat conducting fins 431 to the air flow is reduced to a certain extent, and the power consumption of the air circulator 3 is reduced.

Preferably, referring to fig. 6, in the present embodiment, the second heat conducting fin assembly 44 includes a second heat conducting fin 441 disposed on the heat dissipating surface of the semiconductor refrigeration sheet 42, further, the refrigeration and dehumidification mechanism further includes a fan 45, the second heat conducting fin assembly 44 is formed with a fan mounting slot, and the fan 45 is fixed in the fan mounting slot.

In this arrangement, when the temperature of the heat radiation surface of the semiconductor refrigeration sheet 42 increases, the high temperature can be transmitted to the second heat conduction fin assembly 44, the temperature of the second heat conduction fin assembly 44 increases, and the heat radiation fin group is radiated by the fan 45, so that the refrigeration effect of the semiconductor refrigeration sheet 42 is maintained.

Preferably, referring to fig. 7, in the present embodiment, the first heat conducting fin assembly 43 and the second heat conducting fin assembly 44 are connected by a threaded connection 46 such as a screw, a stud or a screw.

Preferably, referring to fig. 5, in the present embodiment, the refrigeration and dehumidification mechanism further includes a condensed water collecting assembly disposed at the bottom of the refrigeration cassette 41 and communicating with the refrigeration and dehumidification cavity.

The setting like this, the air of cooling in the refrigeration dehumidification cavity can condense liquefaction to form the water droplet, the water droplet can drip to the comdenstion water collection subassembly, collects the water droplet that the condensation formed through the comdenstion water collection subassembly, plays the effect to the air dehumidification.

Preferably, referring to fig. 5 and 6, in the present embodiment, the condensed water collecting assembly includes a liquid collecting bucket 51 communicating with the cooling and dehumidifying cavity, and a collecting bottle 52 disposed below the liquid collecting bucket 51 and communicating with the liquid collecting bucket 51. Preferably, the collecting bottle 52 is detachably connected with the liquid collecting bucket 51, for example, by means of buckling, buckling or screwing, so as to facilitate the treatment of the condensed water in the collecting bottle 52.

Preferably, referring to fig. 6, in this embodiment, a viewing window 53 is provided on the collection bottle 52 to facilitate the observation of the condensed water level in the collection bottle 52.

Preferably, referring to fig. 1 in combination with fig. 2, in the present embodiment, the connection pipe 2 includes a first connection pipe 21 and a second connection pipe 22, the first connection pipe 21 and the second connection pipe 22 are both disposed outside the electric cabinet and are both connected to the inner cavity, wherein the refrigeration and dehumidification mechanism is disposed on the first connection pipe 21, the air circulator 3 is disposed on the second connection pipe 22, and the air circulator 3 can be used for driving air in the inner cavity to enter the first connection pipe 21, and after being cooled or/and dehumidified by the refrigeration and dehumidification mechanism, the air flows through the second connection pipe 22 and returns to the inner cavity; in this way, the first connecting pipe 21 and the second connecting pipe 22 are adopted to set the refrigeration and dehumidification mechanism outside the electric cabinet, so that the refrigeration and dehumidification mechanism can be conveniently produced, installed and maintained, for example, the refrigeration and dehumidification mechanism can be independently produced and installed on site, and the refrigeration and dehumidification mechanism is arranged outside the electric cabinet, so that the working state of the refrigeration and dehumidification mechanism can be very conveniently observed, and when the refrigeration and dehumidification mechanism needs maintenance or replacement in the use process, the refrigeration and dehumidification mechanism can be directly maintained or directly detached and replaced without disassembling the electric cabinet, thereby facilitating maintenance; in addition, the first connecting pipe 21 is used for installing a refrigerating and dehumidifying mechanism, the second connecting pipe 22 is used for installing the air circulator 3, and the first connecting pipe 21 and the second connecting pipe 22 can be flexibly arranged, for example, are arranged vertically to each other as shown in fig. 1, so that the refrigerating or/and dehumidifying effect is better due to the fact that the refrigerating or/and dehumidifying has a sufficiently long circulating channel.

Preferably, referring to fig. 5, the refrigeration and dehumidification device further includes a third connecting pipe 23, one end of the first connecting pipe 21 is communicated with the third connecting pipe 23, the other end is communicated with the second connecting pipe 22, the third connecting pipe 23 and the second connecting pipe 22 are respectively communicated with the inner cavity, the electric cabinet is further provided with an air outlet 11 communicated with the inner cavity, one end of the third connecting pipe 23 is communicated with the air outlet 11, the other end is provided with an ash discharge port, the ash discharge port is provided with a sealing plate 61, a filter screen assembly is arranged in the third connecting pipe 23, and the filter screen assembly comprises a filter screen cylinder 62.

Specifically, the third connecting pipe 23 may be configured as a vertical pipe, the first connecting pipe 21 is configured as a horizontal pipe, one end of the first connecting pipe 21, which is in communication with the third connecting pipe 23, is disposed near the lower end of the third connecting pipe 23, the ash discharging port is disposed at the lower end of the third connecting pipe 23, and the air from the air outlet 11 passes through the filter assembly before entering the first connecting pipe 21.

In this arrangement, the sealing plate 61 is first closed to close the ash discharge port, and then the air circulator 3 is opened, at this time, air in the inner chamber can enter the third connecting pipe 23 and the first connecting pipe 21 from the air outlet 11, the air is cooled by the cooling and dehumidifying mechanism, and the cooled air is returned to the inner chamber through the second connecting pipe 22 and the air inlet 12.

The air entering the third connecting pipe 23 from the air outlet 11 inevitably contains dust and other impurities, the impurities of the third connecting pipe 23 can fall down, and the impurities can be filtered by the filter screen cylinder 62 and then collected on the filter screen cylinder 62 in the falling process, so that after the refrigeration and dehumidification device is used for a period of time, the sealing plate 61 can be opened, the filter screen cylinder 62 is detached from the ash discharge port, and the filter screen cylinder 62 is reinstalled. Therefore, the refrigerating and dehumidifying device not only can dehumidify and dissipate heat of the air in the inner cavity, but also has the function of filtering dust in the air in the inner cavity, and has high practicability.

Preferably, referring to fig. 2, in the present embodiment, the filter screen assembly further includes a supporting ring 64 connected to one end of the filter screen cylinder 62, the inner wall of the third connecting tube 23 is further provided with a blocking ring 63, one end of the filter screen cylinder 62 abuts against the blocking ring 63 through the supporting ring 64, and the other end abuts against the sealing plate 61. By means of the arrangement, the filter screen cylinder 62 can be taken out by opening the sealing plate 61, and after the filter screen cylinder 62 is put back, the sealing plate 61 is closed, so that the operation is simple and convenient, and time and labor are saved.

Alternatively, the sealing plate 61 is connected to the third connecting tube 23 by a clamping, fastening or screwing connection, or by a hinge rotation connection.

Example two

The second embodiment provides a cabinet for electric power, where the cabinet for electric power includes the refrigeration and dehumidification device of the first embodiment, and technical features of the refrigeration and dehumidification device disclosed in the first embodiment are also applicable to the first embodiment, and technical features of the refrigeration and dehumidification device disclosed in the first embodiment are not repeated. Embodiments of the power cabinet are described in further detail below with reference to the accompanying drawings.

Referring to fig. 5, the electric cabinet provided in this embodiment includes a cabinet body 1 and a refrigeration and dehumidification device, the cabinet body 1 is provided with an inner cavity, an air outlet 11 and an air inlet 12, the air outlet 11 and the air inlet 12 are all communicated with the inner cavity, and a connecting pipe 2 of the refrigeration and dehumidification device is communicated between the air outlet 11 and the air inlet 12.

The power cabinet is a power distribution cabinet, a switch cabinet, a power tool management cabinet or the like. When the electric cabinet needs to be dehumidified, the air circulation machine 3 and the refrigerating and dehumidifying mechanism of the refrigerating and dehumidifying device are started, air in the inner cavity enters the connecting pipe 2 from the air outlet 11 through the air circulation machine 3, flows to the air inlet 12 along the connecting pipe 2, returns to the inner cavity through the air inlet 12, and circulation of the air in the connecting pipe 2 and the inner cavity is realized. The cooling air is cooled by the cooling and dehumidifying mechanism to cool or/and dehumidify the air in the connecting pipe 2, on one hand, cooled air returns to the inner cavity through the air inlet 12, and can cool components, cables or electric tools and the like in the inner cavity, so that the cooling effect on the components, cables or electric tools is achieved, on the other hand, the cooling and dehumidifying mechanism can condense and liquefy water vapor in the air flowing through the connecting pipe 2, so that the air dehumidifying effect is achieved, dry air returns to the inner cavity from the air inlet 12, the dehumidifying effect on the components, cables or electric tools and the like in the inner cavity is achieved, and the technical problem that the dehumidifying effect on the components in the power distribution cabinet in the prior art is poor is solved.

By means of the arrangement, the electric cabinet has the dehumidifying and radiating functions, and does not need to rely on external equipment to dehumidify and radiate, so that the inner cavity of the electric cabinet has a good running environment, the radiating effect is good, the dehumidifying efficiency is high, potential safety hazards of the electric cabinet are reduced, and the electric cabinet can better serve places such as a data center and a machine room.

Preferably, referring to fig. 4 and 5, in this embodiment, a cabinet door 71 is rotatably connected to an opening of the cabinet body 1, and the cabinet door 71 can rotate relative to the cabinet body 1 to open or close the opening.

Further, referring to fig. 4, the bottom of the cabinet 1 is provided with four legs 72, preferably, four legs 72 are provided at four corners of the cabinet 1. The cabinet door 71 is provided with a handle 73 to facilitate opening and closing of the cabinet door 71.

Preferably, referring to fig. 5 in combination with fig. 8, in the present embodiment, the air inlet 12 and the air outlet 11 are both disposed on the rear wall of the cabinet 1, and the air inlet 12 and the air outlet 11 are respectively disposed on two sides of the cabinet 1 along the height direction.

Still preferably, referring to fig. 5, in this embodiment, the cooling and dehumidifying device is disposed outside the cabinet body 1, that is, disposed on a side of the cabinet body 1 away from the inner cavity, so that the cooling and dehumidifying device is convenient to install and maintain, is also convenient to overhaul when in fault, and does not occupy the internal space of the cabinet body 1.

Preferably, referring to fig. 8, in the present embodiment, the electric power cabinet further includes a controller and a temperature and humidity sensor 81, and the temperature and humidity sensor 81, the air cycle machine 3 and the refrigeration and dehumidification mechanism are all connected with the controller.

For example, the temperature and humidity sensor 81 is used for controlling the air circulator 3 and the refrigeration and dehumidification mechanism to be started when the temperature and humidity of the inner cavity reach a preset maximum temperature and humidity, and controlling the air circulator 3 and the refrigeration and dehumidification mechanism to be closed when the temperature and humidity of the inner cavity reach a preset minimum temperature and humidity.

Preferably, the fan 45 of the refrigeration and dehumidification mechanism and the semiconductor refrigeration sheet are both connected with the controller. Such setting, monitor the humiture of inner chamber through temperature and humidity sensor 81, when the humiture of inner chamber reaches the highest humiture of predetermineeing, send the signal for the controller, the controller corresponds control air cycle machine 3, fan 45 and semiconductor refrigeration piece 42 start, make connecting pipe 2 and intracavity air cycle through air cycle machine 3, make the air cooling in the connecting pipe 2 through semiconductor refrigeration piece 42, and dispel the heat through fan 45 semiconductor refrigeration piece 42, the cold air after the cooling returns the inner chamber, cool down components and parts, cable or electric power instrument etc. in the inner chamber, and the air in the connecting pipe 2 liquefies because of the condensation, play the dehumidification effect to components and parts in the inner chamber, cable or electric power instrument etc.. After the air cycle machine 3 and the refrigeration and dehumidification mechanism are started for a period of time, the temperature and humidity of the air in the inner cavity are reduced, and a signal is sent to the controller until the temperature and humidity sensor 81 monitors that the temperature and humidity of the inner cavity reach the preset minimum temperature and humidity, and the controller correspondingly controls the air cycle machine 3, the semiconductor refrigeration sheet and the fan 45 to be closed.

Preferably, referring to fig. 4, in the present embodiment, the power cabinet further includes a control panel 82 formed by integrating the control panel with the controller, and the control panel 82 is disposed on the cabinet door 71, so as to facilitate operation of the control panel 82.

Preferably, referring to fig. 8, in this embodiment, the electric power cabinet further includes a mounting device disposed in the inner cavity, the mounting device includes a mounting rack 91, the mounting rack 91 is provided with a plurality of transverse mounting bars 93 and a plurality of vertical mounting bars 96, and mounting structures capable of mounting components are disposed on the plurality of transverse mounting bars 93 and the plurality of vertical mounting bars 96.

Since components are generally mounted on the rear cabinet wall of the cabinet 1, it is preferable that the mounting device is disposed on the rear cabinet wall in the present embodiment, as shown in fig. 8.

Such arrangement allows components in the power cabinet to be mounted on the horizontal mounting bar 93 through the mounting structure on the horizontal mounting bar 93, or mounted on the vertical mounting bar 96 through the mounting structure on the vertical mounting bar 96, or mounted on both the horizontal mounting bar 93 and the vertical mounting bar 96 through the combination of the mounting structure on the horizontal mounting bar 93 and the mounting structure on the vertical mounting bar 96.

Preferably, the transverse mounting bar 93 can move along a first direction of the cabinet 1, and the vertical mounting bar 96 can move along a second direction of the cabinet 1, and the first direction is perpendicular to the second direction, so that the position of each mounting structure in the cabinet 1 can be adjusted, thereby facilitating the mounting of the electrical device.

For example, the first direction is a height direction, a width direction, or a depth direction of the cabinet 1, the second direction is a height direction, a width direction, or a depth direction of the cabinet 1, and the first direction is different from the second direction. Preferably, in this embodiment, the first direction is a height direction of the cabinet 1, and the second direction is a width direction of the cabinet 1.

Preferably, referring to fig. 8, in the present embodiment, the mounting frame 91 includes two vertical frames vertically disposed on an inner wall of the cabinet 1 and a transverse frame connected between the two vertical frames, and a plurality of adjusting holes 92 are disposed on the vertical frames along a first direction at intervals, for example, the adjusting holes 92 are threaded holes.

Both ends of the transverse installation strip 93 are provided with installation holes 94, the transverse installation strip 93 can be connected with the adjusting holes 92 by the mode of threaded connection through the installation holes 94 in a matched connection mode, and the positions of the transverse installation strip 93 along the first direction can be adjusted through the connection with different adjusting holes 92.

The mounting structure comprises a first hole 95 formed in the transverse mounting bar 93 and a second hole 97 formed in the vertical mounting bar 96, wherein components can be mounted on the transverse mounting bar 93 through the first hole 95, or mounted on the vertical mounting bar 96 through the second hole 97, or mounted on the transverse mounting bar 93 through the first hole 95 and mounted on the vertical mounting bar 96 through the second hole 97. Preferably, the first holes 95 are elongated holes extending along the length direction of the transverse mounting bar 93, and a plurality of the first holes 95 are provided, and a plurality of the first holes 95 are spaced along the length direction of the transverse mounting bar 93; the second holes 97 are elongated holes extending along the length direction of the vertical mounting bar 96, and the second holes 97 are provided in plurality, and the plurality of second holes 97 are arranged at intervals along the length direction of the vertical mounting bar 96.

Wherein, the second hole 97 and the first hole 95 can be connected by a threaded connector to connect the vertical mounting bar 96 to the horizontal mounting bar 93, and the position of the vertical mounting bar 96 along the second direction of the cabinet 1 is adjusted by adjusting the position of the second hole 97 relative to the first hole 95.

Preferably, in this embodiment, a plurality of transverse mounting bars 93 and a plurality of vertical mounting bars 96 are provided, so as to facilitate mounting a plurality of components in the cabinet 1 and mounting components at different positions.

In summary, the working principle of the electric power cabinet of the embodiment is as follows:

when the temperature and humidity sensor 81 detects that the temperature and humidity of the inner cavity reaches the preset highest temperature and humidity, the temperature and humidity sensor 81 sends a signal to the controller, and the controller correspondingly controls the air circulator 3, the fan 45 and the semiconductor refrigerating sheet 42 to be started. The air circulation machine 3 drives the air in the inner cavity to flow out to the third connecting pipe 23 through the air outlet 11, then flows to the refrigeration and dehumidification cavity through the first connecting pipe 21, then flows to the second connecting pipe 22, and then flows back to the inner cavity through the air inlet 12.

The semiconductor refrigeration piece 42 can carry out cold energy transfer, make first heat conduction fin subassembly 43 cooling, thereby the temperature reduces in the refrigeration dehumidification cavity, and dispel the heat through second heat conduction fin subassembly 44, on the one hand, the cold air after the cooling returns the inner chamber by air inlet 12, can cool down components and parts in the inner chamber, cable or electric power tool etc. play the radiating effect to components and parts, cable or electric power tool, on the other hand, the air in the refrigeration dehumidification cavity can condense and liquefy, make the inner chamber moisture gather in the refrigeration dehumidification cavity and form the water droplet drip by converging the liquid fill to the collecting bottle, and can not return the inner chamber, play the effect of dehumidify components and parts in the inner chamber, cable or electric power tool, fan 45 dispel the heat to second heat conduction fin subassembly 44 simultaneously, in order to maintain the refrigerating effect of semiconductor refrigeration piece.

When the air passes through the third connecting pipe 23, impurities in the air can enter the filter screen cylinder 62, are left in the filter screen cylinder 62, play the effect of dust fall to the air, can observe the observation window after a period of time, when the water liquid in the collecting bottle is more, unscrew the collecting bottle and empty, after a period of time simultaneously, can take off the shrouding 61, take out the filter screen cylinder 62 from the ash discharge mouth and empty, clear up and maintain.

In use, the mounting position of the transverse mounting bar 93 can be adjusted through the adjusting holes on the mounting frame, the mounting position of the vertical mounting bar 96 can be changed through the selection of the first holes on the transverse mounting bar 93, and the mounting of the electrical element of the power distribution cabinet can be performed through the selection of the first holes and the second holes on the transverse mounting bar 93 and the vertical mounting bar 96.

The electric cabinet of the present embodiment has the advantage of the refrigeration and dehumidification device of the first embodiment, which has been described in detail in the first embodiment, and will not be repeated here.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (10)

1. The refrigeration and dehumidification device is characterized by being used for an electric power cabinet, wherein the electric power cabinet is provided with an inner cavity;

the refrigerating and dehumidifying device comprises a connecting pipe (2) with two ends communicated with the inner cavity, an air circulation machine (3) and a refrigerating and dehumidifying mechanism are arranged on the connecting pipe (2), the air circulation machine (3) can be used for driving air in the inner cavity to enter the connecting pipe (2), and after being refrigerated or/and dehumidified by the refrigerating and dehumidifying mechanism, the air is returned to the inner cavity by the connecting pipe (2).

2. A refrigeration and dehumidification device as set forth in claim 1 wherein said refrigeration and dehumidification mechanism includes a refrigeration and dehumidification cavity, a first heat conductive fin assembly (43), a second heat conductive fin assembly (44) disposed above said first heat conductive fin assembly (43), and a semiconductor refrigeration sheet (42) sandwiched between said first heat conductive fin assembly (43) and said second heat conductive fin assembly (44);

the first heat conduction fin assembly (43) comprises a plurality of first heat conduction fins (431), each first heat conduction fin (431) is inserted into the refrigerating and dehumidifying cavity, and the heat conduction fin surface of each first heat conduction fin (431) is arranged along the circulation direction of air in the refrigerating and dehumidifying cavity.

3. A refrigeration and dehumidification device as set forth in claim 2 wherein the refrigeration and dehumidification mechanism further comprises a fan (45), the second thermally conductive fin assembly (44) being formed with a fan mounting slot, the fan (45) being secured within the fan mounting slot.

4. A refrigeration and dehumidification device according to claim 2, characterized in that it is further provided with a liquid collection hopper (51) in communication with the refrigeration and dehumidification cavity, and with a collection bottle (52) in communication with the liquid collection hopper (51).

5. The refrigeration and dehumidification device according to claim 1, wherein the connection pipe (2) comprises a first connection pipe (21) and a second connection pipe (22), and the first connection pipe (21) and the second connection pipe (22) are both arranged outside the electric cabinet and are both communicated with the inner cavity;

the refrigerating and dehumidifying mechanism is arranged on the first connecting pipe (21), the air circulator (3) is arranged on the second connecting pipe (22), the air circulator (3) can be used for driving air in the inner cavity to enter the first connecting pipe (21), and after being refrigerated or/and dehumidified by the refrigerating and dehumidifying mechanism, the air flows through the second connecting pipe (22) and returns to the inner cavity.

6. A refrigeration and dehumidification device according to claim 5, characterized in that it further comprises a third connection tube (23), one end of the first connection tube (21) being in communication with the third connection tube (23) and the other end being in communication with the second connection tube (22), the third connection tube (23) and the second connection tube (22) being in communication with the inner cavity, respectively;

the electric power cabinet is further provided with an air outlet (11) communicated with the inner cavity, one end of the third connecting pipe (23) is communicated with the air outlet (11), the other end of the third connecting pipe is provided with an ash discharge port, and the ash discharge port is provided with a sealing plate (61).

7. The refrigeration and dehumidification device according to claim 6, wherein a filter screen assembly is arranged in the third connecting pipe (23), the filter screen assembly comprises a filter screen cylinder (62) and a supporting ring (64) connected with one end of the filter screen cylinder (62), a baffle ring (63) is further arranged on the inner wall of the third connecting pipe (23), one end of the filter screen cylinder (62) is abutted with the baffle ring (63) through the supporting ring (64), and the other end of the filter screen cylinder is abutted with the sealing plate (61).

8. The electric cabinet is characterized by comprising a cabinet body (1) and the refrigeration and dehumidification device according to any one of claims 1-7, wherein the cabinet body (1) is provided with an inner cavity, an air outlet (11) and an air inlet (12) which are both communicated with the inner cavity, and a connecting pipe (2) of the refrigeration and dehumidification device is communicated between the air outlet (11) and the air inlet (12).

9. The electric power cabinet according to claim 8, further comprising a controller and a temperature and humidity sensor (81), wherein the temperature and humidity sensor (81), the air cycle machine (3) and the cooling and dehumidifying mechanism are all connected to the controller.

10. The power cabinet of claim 8, further comprising a mounting device disposed in the interior cavity;

the mounting device comprises a mounting frame, wherein the mounting frame is provided with a plurality of transverse mounting bars (93) and a plurality of vertical mounting bars (96), and a plurality of mounting structures capable of mounting components are arranged on the transverse mounting bars (93) and the vertical mounting bars (96).