CN214314087U

CN214314087U - Automatic change block terminal of dehumidification

Info

Publication number: CN214314087U
Application number: CN202120670245.0U
Authority: CN
Inventors: 张东亚; 乔欣欣
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-01
Filing date: 2021-04-01
Publication date: 2021-09-28
Anticipated expiration: 2031-04-01

Abstract

The utility model relates to the technical field of electrical equipment, and discloses an automatic dehumidification distribution box, which comprises a box body and a box door, wherein a mounting plate is arranged in the box body, the box body is formed at the front side of the mounting plate, and an equipment cavity is formed at the rear side of the mounting plate; the drying box is arranged on the side part of the electric cavity, an exhaust hole is formed in the drying box, a drying agent is arranged in the drying box, a heating element for heating the drying agent is arranged in the drying box, an air inlet is formed in the box body, an air outlet is formed in the equipment cavity, and an exhaust fan is further arranged in the equipment cavity; a humidity sensor is arranged in the electric cavity, and a controller is arranged in the equipment cavity. The air that external air got into the electric chamber by the air intake, the moisture in the drier absorption air in the drying cabinet makes the air that gets into the electric intracavity be dry air, and the air of electric intracavity gets into the equipment chamber through the air vent, is discharged by the air outlet again, replaces the humid air in the box, reaches the effect that reduces humidity, can not increase the temperature in electric chamber yet, guarantees electric equipment's normal work.

Description

Automatic change block terminal of dehumidification

Technical Field

The utility model relates to an electrical equipment technical field especially relates to an automatic change block terminal of dehumidification.

Background

The distribution box is used for placing electrical components such as switch equipment, circuit breakers, protection equipment, measuring instruments and the like, has the characteristics of small volume, simplicity and convenience in installation, small occupied area and the like, and is extremely large in use amount in transformer substations and residential quarters. When the distribution box works, the internal electrical components generate heat, and when moisture in hot gas meets the shell of the distribution box, condensate water can be generated, so that the humidity in the distribution box is high, and when the humidity is high, equipment in the distribution box can be corroded, and the service life of electrical equipment is influenced; meanwhile, the heat also increases the power consumption of the electrical components and reduces the stability of the electrical equipment, so that the working temperature and humidity of the distribution box need to be controlled.

Chinese patent application with grant bulletin number CN210092702U discloses a physics dehumidification block terminal structure, including distribution box and front shroud, distribution box's positive surface is connected with the front shroud through the hinge rotation, both ends all imbed and are provided with the air discharge plate about distribution box top, the equal fixed mounting in the left and right sides at distribution box inner wall middle part has the matter storage lattice, the inside drier package that all imbeds of matter storage lattice, the inside bottom fixed mounting of distribution box has the bottom plate, the equal opening in both ends is provided with inlet channel about the bottom plate, inlet channel's middle part embedding is provided with the rose box, the inside embedding of pipeline is provided with the filter screen, the bottom fixed mounting of bottom plate has the air heater, the equal fixed mounting in both ends has the stoving board about the bottom plate top, the top middle part fixed mounting of bottom plate has the cloth that absorbs water.

Foretell block terminal utilizes the air heater to blow in hot-blastly in to the block terminal when inside humidity is too high, carries out hot drying and takes a breath in to the block terminal, utilizes the moisture in the drier package adsorption block terminal simultaneously. But the operational environment of block terminal requires highly to the temperature, and the air heater blows in hot-blast back in to the block terminal, and hot-blast temperature that can increase in the block terminal influences electrical equipment's operational environment.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: the utility model provides an automatic change block terminal of dehumidification to when the mode dehumidification that adopts hot drying among the solution prior art, the hot-blast temperature that increases the block terminal influences electrical equipment's operational environment's problem.

In order to achieve the purpose, the utility model provides an automatic dehumidification distribution box, which comprises a box body and a box door arranged on the front side of the box body, wherein a mounting plate which is parallel to the box door and used for assembling electrical equipment is arranged in the box body;

a drying box is arranged on the side part of the electric cavity, an exhaust hole is formed in the drying box, a drying agent is arranged in the drying box, a heating element for heating the drying agent is arranged in the drying box, an air inlet communicated with the drying box is formed in the box body, an air outlet is formed in the side wall of the equipment cavity, and an exhaust fan is arranged at the top of the equipment cavity; the electric cavity is internally provided with a humidity sensor, and the equipment cavity is internally provided with a controller which is respectively connected with the exhaust fan and the humidity sensor through signals.

Preferably, a heating element for heating the drying agent is further arranged in the drying box.

Preferably, the heating member is an electric bar disposed on a side wall of the drying box.

Preferably, the exhaust hole is provided with a plurality of exhaust holes which are uniformly distributed on the drying box at intervals.

Preferably, a refrigerating element for refrigerating is further arranged on one side, away from the box door, of the mounting plate, and the refrigerating element is in signal connection with the controller.

Preferably, the refrigerating element is a semiconductor refrigerating sheet.

Preferably, a temperature sensor is arranged in the electric cavity, and the temperature sensor is in signal connection with the controller.

Preferably, the exhaust holes are long holes extending in a vertical direction, and the long holes are horizontally arranged on the mounting plate at intervals.

Preferably, shutters are arranged on the air inlet and the air outlet.

The embodiment of the utility model provides an automatic change block terminal of dehumidification compares with prior art, and its beneficial effect lies in: the distribution box is divided into a range electrical cavity and an equipment cavity by the mounting plate, the drying box is arranged in the electrical cavity, the exhaust fan is arranged in the equipment cavity, when the humidity sensor in the electrical cavity detects that the humidity in the electrical cavity is higher than a set value, the humidity sensor transmits a humidity signal to the controller, the controller transmits a starting signal to the exhaust fan, outside air enters the electrical cavity from the air inlet, the drying agent in the drying box absorbs moisture in the air, so that the air entering the electrical cavity is dry air, the air in the electrical cavity enters the equipment cavity through the air vent and is exhausted from the air outlet to replace wet air in the box body, the effect of reducing the humidity is achieved, meanwhile, the temperature of the electrical cavity cannot be increased, and the normal work of electrical equipment is guaranteed; simultaneously with electric chamber and equipment chamber utilize the mounting panel to separate, when indoor humidity is not high, reduce the air of air outlet department and get into electric chamber through the equipment intracavity, reduce outside moisture and get into electric chamber, reduce the humidity in the block terminal.

Drawings

Fig. 1 is a schematic structural view of an automatic dehumidification distribution box of the present invention;

FIG. 2 is a longitudinal cross-sectional view of the automated dehumidification electrical box of FIG. 1;

fig. 3 is a cross-sectional view of a dry box of the automated dehumidification electrical box of fig. 1.

In the figure, 1, a box body; 11. an electrical cavity; 12. an equipment chamber; 13. an air inlet; 14. an air outlet; 15. an access door; 2. a box door; 3. mounting a plate; 31. a vent hole; 4. a drying oven; 41. an exhaust hole; 5. a heating member; 6. an exhaust fan; 7. a humidity sensor; 8. a temperature sensor; 9. a controller; 10. a refrigeration component.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

The utility model discloses an automatic change preferred embodiment of dehumidification's block terminal, as shown in fig. 1 to 3, this automatic dehumidification's block terminal includes box 1 and chamber door 2, and chamber door 2 utilizes the hinge rotation assembly at the front side of box 1.

The whole cuboid structure that is of box 1 has still arranged mounting panel 3 in the box 1, and the vertical fixed arrangement of mounting panel 3 is in box 1, and mounting panel 3 is parallel to each other with the chamber door 2 after closing. The mounting panel 3 divides the box 1 into an electrical cavity 11 and an equipment cavity 12 along the fore-and-aft direction, and the electrical cavity 11 is located the front side of mounting panel 3, and electrical cavity 11 is used for installing electrical equipment such as switchgear, circuit breaker, protection equipment, measuring apparatu table, and equipment cavity 12 is located the rear side of mounting panel 3, and equipment cavity 12 is used for arranging dehumidification equipment. The back of the box body 1 is also provided with an access door 15 through a hinge in a rotating way, and equipment in the equipment cavity 12 can be maintained through the access door 15.

Still seted up air vent 31 on the mounting panel 3, air vent 31 intercommunication electric chamber 11 and equipment chamber 12, the air that supplies the dehumidification gets into in the equipment chamber 12 through electric chamber 11, guarantees the circulation of air. Preferably, the vent hole 31 is a long hole extending along the vertical direction, the number of the long holes is two, the two long holes are horizontally arranged on the mounting plate 3 at intervals, and on the premise of ensuring the mounting space, the long holes can increase the circulation rate of gas, so that the dehumidification effect is improved.

An air inlet 13 and an air outlet 14 are further arranged on the box body 1, and shutters are uniformly arranged on the air inlet 13 and the air outlet 14, can block dust, and can purify air entering the distribution box. The air inlet 13 is arranged on a side plate of the box body 1 at the bottom of the electric cavity 11, and the air outlet 14 is arranged on a side plate of the box body 1 at the top of the equipment cavity 12, so that the distance between the air inlet 13 and the air outlet 14 can be increased, and the air exchange efficiency is improved.

A drying box 4 is arranged on the side wall of the electrical chamber 11, and the drying box 4 is used for arranging a drying agent. The drying box 4 is fixed on the side wall of the electric cavity 11 through screws, the position of the drying box 4 corresponds to the position of the air inlet 13 and is respectively located on the inner side and the outer side of the box body 1, so that air entering from the air inlet 13 is dried through the drying box 4, moisture in the air is eliminated, the air entering the electric cavity 11 is dry air, the dry air replaces wet air in the electric cavity 11, and the humidity in the electric cavity 11 is reduced. In this embodiment, the desiccant is a silica gel desiccant, and the porous structure of the silica gel desiccant has a large contact area with air and a good adsorption effect.

An exhaust hole 41 is formed in the outer plate of the drying box 4 close to the electrical cavity 11, and the exhaust hole 41 is used for communicating the drying box 4 with the electrical cavity 11 to form a gas flow passage. The exhaust hole 41 has a plurality ofly, and a plurality of exhaust holes 41 are arranged on drying cabinet 4 with the matrix form equipartition, and a plurality of exhaust holes 41 can guarantee that the gas circulation is unobstructed when holding the drier.

Still arrange heating member 5 on the lateral wall of drying cabinet 4, heating member 5 is the electric bar, and the electric bar has a plurality ofly along vertical direction interval arrangement. At the intermittent type period that the block terminal does not dehumidify, the glow stick can heat the drier, evaporates the moisture in the drier, makes drier used repeatedly, guarantees the efficiency of drier when the dehumidification. The extending direction of the heating rod is parallel to the air circulation direction, the contact area of the heating rod and the air is reduced, and the gas entering the box body 1 is prevented from being overhigh in temperature.

The top of equipment chamber 12 has still arranged air exhauster 6, and air exhauster 6 is used for increasing the circulation of gas speed in the block terminal, and air exhauster 6 arranges in the position that is close to air outlet 14, makes the circulation of gas steady. The equipment cavity 12 is also provided with a controller 9 on the mounting plate 3, the electric cavity 11 is provided with a humidity sensor 7, the humidity sensor 7 and the exhaust fan 6 are both in signal connection with the controller 9, and in the embodiment, the controller 9 is a PLC programmable controller 9.

The humidity sensor 7 is used for transmitting a humidity signal to the controller 9 in real time, and when the humidity in the electric cavity 11 is higher than a built-in threshold value of the controller 9, the controller 9 transmits a starting signal to the exhaust fan 6 to control the exhaust fan 6 to start, so that the gas flow rate in the distribution box is increased, and the humidity in the distribution box is quickly reduced. When the humidity signal transmitted by the humidity sensor 7 shows that the humidity in the electric cavity 11 is lower than the built-in threshold of the controller 9, the controller 9 transmits a stop signal to the exhaust fan 6, so that the exhaust fan 6 is prevented from being started for a long time, and the energy consumption is reduced.

The refrigerating element 10 is further arranged in the equipment cavity 12 on the mounting plate 3, and the refrigerating element 10 is used for reducing the temperature of the mounting plate 3, so that low temperature is transmitted to the electrical equipment in the electrical cavity 11, and normal work of the electrical equipment is guaranteed. In this embodiment, the refrigeration component 10 is a semiconductor refrigeration piece, and the semiconductor refrigeration piece has a simple structure and a small volume, and is suitable for a small-volume working condition in the distribution box. When the electric bar heats and dries the drying agent, even if the air is not directly heated, the temperature entering the electric cavity 11 from the air inlet 13 is still relatively high, and the refrigeration element 10 can timely reduce the temperature of the electric cavity 11 to ensure the normal work of the electric equipment.

A temperature sensor 8 is further arranged in the electrical cavity 11, the temperature sensor 8 is in signal connection with the controller 9, the temperature sensor 8 is used for detecting the temperature in the electrical cavity 11, and when the temperature in the electrical cavity 11 is higher than the set temperature in the controller 9, the controller 9 transmits a working signal to the refrigeration element 10 to cool the electrical cavity 11; when the temperature in the electrical cavity 11 is lower than the set temperature in the controller 9, the controller 9 transmits a stop signal to the cooling element 10.

To sum up, the embodiment of the utility model provides an automatic block terminal of dehumidification, its mounting panel divides electric chamber of block terminal journey and equipment chamber, arrange the drying cabinet in electric intracavity, arrange the air exhauster in the equipment chamber, when humidity transducer in electric intracavity detects that the humidity in electric intracavity is higher than the setting value, humidity transducer transmits the humidity signal to the controller, the controller transmits the start signal to the air exhauster, outside air gets into electric chamber by the air intake, the drier in the drying cabinet absorbs the moisture in the air, make the air that gets into electric intracavity be dry air, the air in electric intracavity gets into equipment chamber through the air vent, discharge by the air outlet again, replace the humid air in the box, reach the effect that reduces humidity, also can not increase the temperature in electric chamber simultaneously, guarantee the normal work of electrical equipment; simultaneously with electric chamber and equipment chamber utilize the mounting panel to separate, when indoor humidity is not high, reduce the air of air outlet department and get into electric chamber through the equipment intracavity, reduce outside moisture and get into electric chamber, reduce the humidity in the block terminal.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. The distribution box with the automatic dehumidification function is characterized by comprising a box body and a box door arranged on the front side of the box body, wherein a mounting plate which is parallel to the box door and used for assembling electrical equipment is further arranged in the box body;

2. The automated dehumidification electric power distribution box of claim 1, further comprising a heating element disposed within the drying box for heating the desiccant.

3. The automated dehumidification electric power distribution cabinet of claim 2, wherein the heating element is an electric heating bar disposed on a side wall of the drying cabinet.

4. The automated dehumidification electrical distribution box of any one of claims 1-3, wherein said plurality of vents are spaced apart from one another on said drying box.

5. The automated dehumidification electrical distribution box of any one of claims 1-3, wherein a cooling element for cooling is further disposed on a side of the mounting plate facing away from the box door, the cooling element being in signal communication with the controller.

6. The automated dehumidification electrical distribution box of claim 5, wherein the refrigeration element is a semiconductor refrigeration chip.

7. The automated dehumidification electrical distribution box of claim 5, wherein a temperature sensor is disposed within the electrical cavity, the temperature sensor in signal connection with the controller.

8. The automated dehumidification electrical box of any one of claims 1-3, wherein the exhaust holes are vertically extending slots horizontally spaced on the mounting plate.

9. The automatic dehumidification distribution box of any one of claims 1-3, wherein louvers are disposed on both the air inlet and the air outlet.