CN115603208A - Damp-proof heat-dissipation electric installation box and working method thereof - Google Patents

Abstract

The invention provides a moisture-proof and heat-dissipating electric installation box, which relates to the technical field of electric equipment. The moisture-proof and heat-dissipating power installation box includes a power box body, an internal moisture-proof mechanism is installed on the upper end of the power box body, and the internal moisture-proof mechanism also includes a fixed box fixedly installed on the upper end of the power box body, and the power box body The upper end of the power box body is equipped with a heat dissipation mechanism, and the inner bottom of the power box body is equipped with a moisture-proof mechanism at the bottom of the box. The left and right ends of the power box body are near the upper side. With fixed base. In the present invention, the dehumidification effect is achieved by heating the electric heating wire and exchanging heat with hot and humid air, and then the air is further dried by the activated carbon plate. Driven by the cooling fan, the air can achieve the purpose of rapid cooling when passing through the cooling sheet, thereby Make these dry cold air achieve the effect of lowering the temperature and improve its service life.

Description

Moisture-proof and heat-dissipating power installation box and working method thereof

technical field

The invention relates to the technical field of electric equipment, in particular to a moisture-proof and heat-dissipating electric installation box. Background technique

The power installation box is a general circuit distribution box for users to use electricity. According to the requirements of electrical wiring, switchgear, measuring instruments, protective appliances and auxiliary equipment are assembled in metal cabinets or on the screen width, requiring a higher level of safety protection. Most of the traditional electrical installation boxes only have simple ventilation openings, lack of targeted means of moisture-proof and heat dissipation, and electrical installation boxes are generally required to work in a dry environment, so as to prevent the internal electrical components from being corroded by moisture and cannot be used normally. There may even be safety risks. At the same time, in order to ensure that the electrical components are in a good working condition and improve the service life of the electrical components, the electrical installation box is also required to have a good heat dissipation function, which is especially obvious in some hot and humid areas.

Contents of the invention

Aiming at the deficiencies of the prior art, the present invention provides a moisture-proof and heat-dissipating power installation box, which solves the problem that most of the traditional power installation boxes only have simple ventilation openings and lack targeted moisture-proof and heat-dissipating means to ensure that the electrical components In a good working condition, improve the service life of electrical components.

In order to achieve the above object, the present invention is achieved through the following technical solutions: a moisture-proof and heat-dissipating power installation box, including a power box body, an internal moisture-proof mechanism is installed on the upper end of the power box body, and the internal moisture-proof mechanism also includes a fixed installation The fixed box at the upper end of the power box body, the upper end of the power box body is equipped with a heat dissipation mechanism, the inner bottom of the power box body is equipped with a bottom moisture-proof mechanism, and the left and right ends of the power box body are close to the upper side. A heat dissipation and waterproof port is provided, the lower end of the power box body is fixedly installed with a fixed base, and a monitor is fixedly installed on the inner side of the door of the power box body near the lower right corner, and the electrical connection between the monitor and the controller Sexual connection, the upper end of the fixed box is provided with an audible and visual alarm near the left side.

Preferably, the internal moisture-proof mechanism includes a fixed seat fixedly installed at the rear end of the power box body close to the upper side, the upper end of the fixed seat is fixedly equipped with a pipeline fan, and the left end of the pipeline fan is fixedly connected with an exhaust pipe , the exhaust pipe is communicated with the pipeline fan, the end of the exhaust pipe far away from the pipeline fan is connected with the power box body, the right end of the pipeline fan is fixedly connected with an air delivery pipe, and the air delivery pipe The pipe is connected with the pipe fan.

Preferably, the end of the air duct far away from the duct fan is connected to the fixed box, and a square duct is fixedly installed inside the fixed box corresponding to the air duct, and the square duct is fixedly installed near the rear side There are three groups of metal tubes arranged in a linear array, the outer circumference of the metal tubes is provided with heating wires inside the square tube, and the heating wires are electrically connected to an external power supply.

Preferably, the upper end of the square through pipe is provided with a socket near the middle, and the internal moisture-proof mechanism also includes an activated carbon plate, and the activated carbon plate is inserted into the inner bottom of the square through pipe through the socket, and the inner bottom of the square through pipe The inner bottom is fixedly connected with limit strips near the front and rear ends of the activated carbon plate, the lower end of the activated carbon plate is engaged between the limit strips, and the upper end of the activated carbon plate is higher than or equal to the upper end of the square through pipe. The middle of the upper end of the activated carbon plate is fixedly connected with a handle, and the upper end of the fixed box is provided with a flip cover corresponding to the activated carbon plate.

Preferably, the outer wall of the square through pipe is provided with evenly distributed through holes near the front side.

Preferably, the heat dissipation mechanism includes two groups of cooling fans fixedly installed on the left and right sides of the upper wall middle of the power box body, the upper ends of the cooling fans are fixedly installed with cooling fins, and the cooling fins are far away from each other. One end is provided with a dehumidifier.

Preferably, the moisture-proof mechanism at the bottom of the box includes a chassis fixedly installed at the inner bottom of the power box body, the inner wall of the chassis is fixedly connected with a baffle near the upper side, and four groups of evenly arranged squares are placed inside the chassis. plate, the width of the square plate is equal to the opening width of the baffle, and quicklime is arranged inside the square plate.

Preferably, a handle bar is fixedly installed in the middle of the front and rear ends of the upper end of the square plate, a cover plate is placed on the upper end of the square plate, and a bar-shaped groove is provided at the middle position of the cover plate, and the cover plate The lower end of the handle is close to the edge and is attached to the upper end of the baffle, the handle bar runs through the inside of the bar-shaped groove, a partition is placed on the upper end of the handle bar, and there is a gap between the partition plate and the cover plate.

The invention provides a moisture-proof and heat-dissipating electric installation box. Has the following beneficial effects:

1. In the present invention, by starting the pipeline fan, the exhaust pipe can extract the hot and humid air in the power box body, and then blow the hot and humid air into the inside of the square duct in the fixed box through the air delivery pipe, and at the same time, by starting the external power supply The heating wire can be energized and heated to generate a certain amount of heat, and the hot and humid air inside the square tube exchanges heat with the heat when passing through the heating wire to achieve the effect of dehumidification, and then is blocked by the wind force and the square tube. This air is further dried by blowing towards the activated charcoal panels.

2. The present invention can blow the dried air in the fixed box to the inside of the power box body by starting the cooling fan, and at the same time reduce the surface temperature of the cooling sheet by starting the dehumidifier, and the air is refrigerated under the drive of the cooling fan. The purpose of rapid cooling can be achieved when the chip is in use, so that the dry cold air can achieve the effect of lowering the temperature when it is blown into the inside of the power box body, so that the internal electrical components are in a good working environment and improve their performance. service life.

3. In the present invention, a square plate is placed in the chassis, and an appropriate amount of quicklime is uniformly sprinkled into the inside of the square plate. Due to the particularity of the quicklime, the water molecules in the air can be easily absorbed, thereby further improving the inner bottom of the power box body. Dehumidification greatly improves the moisture-proof performance of the power box body.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of a moisture-proof and heat-dissipating power installation box proposed by the present invention;

Fig. 2 is a rear view partial sectional structural schematic diagram of a moisture-proof and heat-dissipating power installation box proposed by the present invention;

Fig. 3 is an enlarged structural schematic diagram of A in Fig. 2 of a moisture-proof and heat-dissipating power installation box proposed by the present invention;

Fig. 4 is a schematic diagram of an enlarged structure at B in Fig. 2 of a moisture-proof and heat-dissipating power installation box proposed by the present invention;

Fig. 5 is a front view partial cross-sectional structural schematic diagram of a moisture-proof and heat-dissipating power installation box proposed by the present invention;

Fig. 6 is a partial structural schematic diagram of a moisture-proof and heat-dissipating power installation box proposed by the present invention.

Among them: 1. Power box body; 2. Internal moisture-proof mechanism; 201. Fixed seat; 202. Pipe fan; 203. Exhaust pipe; 204. Air delivery pipe; 205. Fixed box; 206. Square duct; Tube; 208, heating wire; 209, jack; 210, activated carbon plate; 211, limit bar; 212, handle handle; 213, through hole; 214, flip cover; 3, cooling mechanism; 31, cooling fan; 32, Refrigeration sheet; 33. Dehumidifier; 4. Moisture-proof mechanism at the bottom of the box; 41. Chassis; 42. Baffle; 43. Square plate; 44. Quicklime; Partition; 5. Heat dissipation and waterproof port; 6. Fixed base; 7. Monitor; 8. Sound and light alarm.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Example:

As shown in Figures 1-6, the embodiment of the present invention provides a moisture-proof and heat-dissipating power installation box, including a power box body 1, an internal moisture-proof mechanism 2 is installed on the upper end of the power box body 1, and the internal moisture-proof mechanism 2 also includes a The fixed box 205 on the upper end of the power box body 1, the upper end of the power box body 1 is equipped with a cooling mechanism 3, the inner bottom of the power box body 1 is equipped with a bottom moisture-proof mechanism 4, and the left and right ends of the power box body 1 are near the upper side. A heat dissipation and waterproof port 5 is provided, a fixed base 6 is fixedly installed on the lower end of the power box body 1, and a monitor 7 is fixedly installed on the inside of the door of the power box body 1 near the lower right corner, and the electrical connection between the monitor 7 and the controller is fixed. Sexual connection, the upper end of fixed box 205 is provided with audible and visual alarm 8 near the left side;

The humidity and temperature in the power box body 1 are detected by the monitor 7, and the acousto-optic alarm 8 can be activated by the controller to remind the staff to take corresponding measures in time if an extreme value occurs.

The internal moisture-proof mechanism 2 includes a fixed seat 201 fixedly installed on the rear end of the power box body 1 near the upper side. The upper end of the fixed seat 201 is fixedly equipped with a pipeline fan 202, and the left end of the pipeline fan 202 is fixedly connected with an exhaust pipe 203. The air duct 203 communicates with the duct blower fan 202, and the end of the exhaust duct 203 away from the duct fan 202 communicates with the power box body 1. The right end of the duct fan 202 is fixedly connected with a delivery duct 204. The pipeline fan 202 is connected with each other, and the end of the air delivery pipe 204 away from the pipeline fan 202 is connected with the fixed box 205. The inside of the fixed box 205 is fixed with a square duct 206 corresponding to the duct 204, and the square duct 206 Three groups of metal tubes 207 arranged in a linear array are fixedly installed near the rear side. The outer circumference of the metal tubes 207 is provided with a heating wire 208 inside the square tube 206. The heating wire 208 is electrically connected to the external power supply. The upper end of the through pipe 206 is provided with a socket 209 near the middle, and the internal moisture-proof mechanism 2 also includes an activated carbon plate 210, and the activated carbon plate 210 is inserted into the inner bottom of the square through pipe 206 through the insertion hole 209, and the inner bottom of the square through pipe 206 is close to The front and rear ends of the activated carbon plate 210 are fixedly connected to the limit strips 211, the lower end of the activated carbon plate 210 is engaged between the limit strips 211, the upper end of the activated carbon plate 210 is higher than or equal to the upper end of the square tube 206, and the activated carbon plate 210 A handle 212 is fixedly connected to the middle of the upper end of the upper end, the upper end of the fixed box 205 is provided with a flip cover 214 at the corresponding activated carbon plate 210, and the outer wall of the square through pipe 206 is provided with evenly distributed through holes 213 near the front side;

By starting the pipeline fan 202, the exhaust pipe 203 can extract the hot and humid air in the power box body 1, and then blow the hot and humid air into the square duct 206 in the fixed box 205 through the air delivery pipe 204. The external power supply can energize the heating wire 208 to generate a certain amount of heat, and the hot and humid air inside the square tube 206 exchanges heat with the heat when passing through the heating wire 208 to achieve the effect of dehumidification. The activated carbon plate 210 is blown to the activated carbon plate 210 under the blocking effect of the activated carbon plate 210, and the air can be further dried by the activated carbon plate 210. At the same time, the activated carbon plate 210 also plays a role of buffering to a certain extent, ensuring that these hot and humid air can pass through the square duct 206. The interior has been fully treated. Secondly, since the activated carbon plate 210 will become less effective after absorbing a certain amount of water, the staff can open the flip cover 214, and then directly pull out the activated carbon plate 210 through the handle 212 for replacement. , the installation is the same, directly align the new activated carbon plate 210 with the socket 209 and insert it, and the activated carbon plate 210 can be kept in a vertical state through the limit function of the limit bar 211 and the socket 209, and the dehumidified air is passing through the activated carbon. After the plate 210 passes through the through hole 213, it escapes inside the fixed box 205, and under the drive of the cold air flow, the original part of the hot and humid air will slowly escape from the heat dissipation and waterproof port 5. Further, the hot and humid air in the power box body 1 The air circulates and reciprocates under the above-mentioned dehumidification operation, and the drying effect will be better and better, avoiding the occurrence of moisture and corrosion of the electrical components in the power box body 1, so that the power supply of the heating wire 208 can be disconnected, saving electric energy while Improve the service life of the heating wire 208.

The heat dissipation mechanism 3 includes two groups of cooling fans 31 fixedly installed on the left and right sides of the upper wall middle of the power box body 1. The upper ends of the cooling fans 31 are fixedly equipped with cooling fins 32, and the ends of the cooling fins 32 are set apart from each other. There are dehumidifiers 33;

The dried air in the fixed box 205 can be blown to the inside of the power box body 1 by starting the cooling fan 31, and the surface temperature of the cooling sheet 32 can be reduced by starting the dehumidifier 33 simultaneously, and these airs are driven by the cooling fan 31 The purpose of rapid cooling can be achieved when passing through the cooling plate 32, so that the dry cold air can achieve the effect of lowering the temperature when it is blown into the inside of the power box body 1, so that the internal electrical components are in a good working environment In order to increase its service life.

The moisture-proof mechanism 4 at the bottom of the box includes a chassis 41 fixedly installed on the inner bottom of the power box body 1, the inner wall of the chassis 41 is fixedly connected with a baffle plate 42 near the upper side, and four groups of evenly arranged square plates 43 are placed inside the chassis 41. The width of square dish 43 is equal to the opening width of baffle plate 42, and the inside of square dish 43 is all provided with unslaked lime 44, and the middle of the front and rear ends of the upper end of square dish 43 is fixedly equipped with handle bar 45, and the upper end of square dish 43 is all placed with Cover plate 46, the middle position of cover plate 46 is provided with strip groove 47, the lower end of cover plate 46 abuts against the upper end of baffle plate 42 near the edge, handle bar 45 runs through the inside of bar shape groove 47, the upper end of handle bar 45 A partition 48 is placed, and there is a gap between the partition 48 and the cover plate 46;

In some areas with humid air, it is more likely to be damp near the ground. The installation and fixation of the power box body 1 can be facilitated by fixing the base 6, while avoiding its direct contact with the ground. By placing a square plate 43 in the chassis 41, the square An appropriate amount of quicklime 44 is evenly sprinkled into the inside of the plate 43. Due to the particularity of the quicklime 44, the water molecules in the air can be easily absorbed, thereby further dehumidifying the inner bottom of the power box body 1, and greatly improving the performance of the power box body 1. Moisture-proof performance, through the limiting effect between the cover plate 46 and the baffle plate 42, there is a certain space gap while the quicklime 44 is protected, and the strip groove 47 ensures that the quicklime 44 can be in contact with the bottom air. The square plate 43 can be taken out by the handle bar 45 to replace or clean the quicklime 44 , and the cover plate 46 can be directly taken off by the strip groove 47 .

Working principle: when in use, by starting the duct fan 202, the exhaust pipe 203 can draw out the hot and humid air in the power box body 1, and then blow the hot and humid air into the square duct in the fixed box 205 through the air delivery pipe 204 206, at the same time, by starting the external power supply, the heating wire 208 can be energized and heated to generate a certain amount of heat, and the hot and humid air inside the square tube 206 exchanges heat with the heat when passing through the heating wire 208 to achieve dehumidification. Then, under the blocking effect of wind force and square duct 206, it is blown to the activated carbon plate 210, and the activated carbon plate 210 can further dry the air. The air has been fully treated in the inside of the square duct 206. Secondly, because the activated carbon plate 210 will become less effective after absorbing a certain amount of water, the staff can open the flip cover 214, and then directly pass the handle 212 Pull out the activated carbon plate 210 for replacement, and install it in the same way. Directly align the new activated carbon plate 210 with the socket 209 and insert it. The activated carbon plate 210 can be kept in a vertical state through the limit function of the limit bar 211 and the socket 209. After dehumidification The treated air escapes in the inside of the fixed box 205 through the through hole 213 after passing through the activated carbon plate 210, and then the dried air in the fixed box 205 can be blown to the inside of the power box body 1 by starting the cooling fan 31. The dehumidifier 33 can reduce the surface temperature of the refrigerating sheet 32, and the air driven by the refrigerating fan 31 can achieve the purpose of rapid cooling when passing through the refrigerating sheet 32, so that these dry cold air can be blown into the power box body 1, the effect of lowering the temperature can be achieved, so that the internal electrical components are in a good working environment and their service life is improved, and driven by the cold air flow, the original part of the hot and humid air will slowly flow from the heat dissipation and waterproof port 5 escapes, and further, the hot and humid air in the power box body 1 circulates and reciprocates in this way under the above-mentioned dehumidification operation, the drying effect will become better and better, and the electric components in the power box body 1 will be prevented from being corroded by moisture. , so that the power supply of the heating wire 208 can be disconnected, and the service life of the heating wire 208 can be improved while saving electric energy. In some areas with humid air, the place near the ground is more likely to be damp, and the installation of the power box body 1 can be facilitated by fixing the base 6 Fixed, while avoiding its direct contact with the ground, by placing a square plate 43 in the chassis 41, and the inside of the square plate 43 is uniformly sprinkled with an appropriate amount of quicklime 44, due to the particularity of the quicklime 44, the water molecules in the air can be easily Absorption, thereby further dehumidifying the inner bottom of the power box body 1, greatly improving the moisture-proof performance of the power box body 1, through the limiting effect between the cover plate 46 and the baffle plate 42, the quicklime 44 can be protected. There is a certain space gap, and the strip groove 47 ensures that the quicklime 44 can be in contact with the bottom air. 45 square dish 43 can be taken out quicklime 44 is replaced or cleaned etc., can directly cover plate 46 be taken off by strip groove 47.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (9)

1. The utility model provides a dampproofing radiating electric power installation case, includes power box body (1), its characterized in that: inside dampproofing mechanism (2) are installed to the upper end of power box body (1), inside dampproofing mechanism (2) still include fixed box (205) of fixed mounting in the upper end of power box body (1), heat dissipation mechanism (3) are installed to the upper end of power box body (1), bottom of the case dampproofing mechanism (4) are installed to the inside bottom of power box body (1), both ends are close to upside department and all are provided with heat dissipation waterproof mouth (5) about power box body (1), the lower extreme fixed mounting of power box body (1) has unable adjustment base (6), the inboard of the chamber door of power box body (1) is being close to lower right corner department fixed mounting and is having monitor (7), electric connection between monitor (7) and the controller, the upper end of fixed box (205) is close to left side department and is provided with audible-visual annunciator (8).

2. The moisture-proof heat-dissipation power installation box as claimed in claim 1, wherein: inside dampproofing mechanism (2) are close to fixing base (201) of upside department including fixed mounting at the rear end of power box body (1), the upper end fixed mounting of fixing base (201) has pipeline fan (202), the left end fixedly connected with exhaust column (203) of pipeline fan (202), be linked together between exhaust column (203) and pipeline fan (202), be linked together between the one end that pipeline fan (202) were kept away from in exhaust column (203) and power box body (1), the right-hand member fixedly connected with air delivery pipe (204) of pipeline fan (202), be linked together between air delivery pipe (204) and pipeline fan (202).

3. The moisture-proof heat-dissipation power installation box as claimed in claim 2, wherein: be linked together between the one end that pipeline fan (202) was kept away from in defeated tuber pipe (204) and fixed case (205), the inside of fixed case (205) corresponds defeated tuber pipe (204) department fixed mounting has square siphunculus (206), square siphunculus (206) are close to rear side department fixed mounting has three group to be metal pipe (207) that linear array arranged, the periphery of metal pipe (207) is provided with heating wire (208) in the inside position of square siphunculus (206), electric connection between heating wire (208) and the external power source.

4. The moisture-proof heat-dissipation power installation box according to claim 3, wherein: the upper end of square siphunculus (206) is close to middle department and is provided with jack (209), inside dampproofing mechanism (2) still include activated carbon plate (210), activated carbon plate (210) run through jack (209) and insert the inside bottom to square siphunculus (206), the inside bottom of square siphunculus (206) is in equal fixedly connected with spacing (211) of both ends department around being close to activated carbon plate (210), the lower extreme block of activated carbon plate (210) is between spacing (211), the upper end of activated carbon plate (210) is higher than or equal to the upper end of square siphunculus (206), department fixedly connected with handle (212) in the middle of the upper end of activated carbon plate (210), the upper end of fixed box (205) is provided with flip (214) in corresponding activated carbon plate (210) department.

5. The moisture-proof heat-dissipation power installation box according to claim 3, wherein: the outer wall of the square through pipe (206) is provided with through holes (213) which are uniformly distributed at the position close to the front side.

6. The moisture-proof heat-dissipation power installation box as claimed in claim 1, wherein: the heat dissipation mechanism (3) comprises two groups of refrigeration fans (31) which are fixedly arranged at the left side and the right side of the middle position of the upper wall of the power box body (1), the upper end of the refrigeration fan (31) is fixedly provided with a refrigeration sheet (32), and one end of the refrigeration sheet (32) far away from the refrigeration sheet is provided with a dehumidifier (33).

7. The moisture-proof heat-dissipation power installation box as claimed in claim 1, wherein: dampproofing mechanism (4) of the bottom of the case includes chassis (41) of fixed mounting in the inside bottom of power box body (1), the inner wall of chassis (41) is close to upside fixedly connected with baffle (42), four groups of square dishes (43) of evenly arranging have been placed to the inside on chassis (41), the width of square dish (43) equals the opening width of baffle (42), the inside of square dish (43) all is provided with quick lime (44).

8. The moisture-proof heat-dissipation power installation box of claim 7, wherein: department fixed mounting has portable pole (45) in the middle of the front and back both ends of the upper end of square plate (43), apron (46) have all been placed to the upper end of square plate (43), the intermediate position of apron (46) is provided with bar groove (47), the lower extreme of apron (46) is close to the edge and pastes the upper end at baffle (42), portable pole (45) run through the inside in bar groove (47), baffle (48) have been placed to the upper end of portable pole (45), there is the space between baffle (48) and apron (46).

9. A method of operating a moisture and heat resistant electrical installation casing according to any one of claims 1 to 8, the method comprising: the damp and hot air in the electric box body (1) can be pumped out by the air pumping pipe (203) by starting the pipeline fan (202), then the damp and hot air is blown into the inside of the square through pipe (206) in the fixed box (205) by the air conveying pipe (204), meanwhile, the electric heating wire (208) can be electrified and heated by starting the external power supply to generate certain heat, the damp and hot air in the square through pipe (206) exchanges heat with the heat when passing through the electric heating wire (208) to further achieve the dehumidification effect, then the damp and hot air is blown to the activated carbon plate (210) under the blocking effect of wind power and the square through pipe (206), and the air can be further dried by the activated carbon plate (210), meanwhile, the activated carbon plate (210) plays a role in buffering to a certain extent, so that the damp and hot air is fully processed in the square through pipe (206), secondly, the use effect of the activated carbon plate (210) is deteriorated after absorbing certain moisture, the turning cover (214) can be opened, then the activated carbon plate (210) is directly drawn out for replacement through the lifting handle (212), the installation is the same, a new activated carbon plate (210) is directly inserted into the jack (209), the activated carbon plate (210) can be kept in a vertical state through the limiting effects of the limiting strip (211) and the jack (209), and the dehumidified air is dissipated into the fixed box (205) through the through hole (213) after penetrating through the activated carbon plate (210), furthermore, the air dried in the fixed box (205) can be blown to the inside of the electric box body (1) by starting the refrigeration fan (31), the surface temperature of the refrigerating sheet (32) can be reduced by starting the dehumidifier (33), the air can achieve the purpose of rapid cooling when passing through the refrigerating sheet (32) under the drive of the refrigeration fan (31), and the original partial humid and hot air can slowly escape from the heat-dissipation waterproof opening (5) under the drive of cold airflow, furthermore, the humid and hot air in the electric box body (1) can be circulated in the way under the dehumidification operation, the power supply of the electric heating wires (208) can be cut off, the service life of the electric heating wires (208) is prolonged while the electric energy is saved, the moisture is easier to be absorbed in certain areas with moist air, the positions close to the ground are convenient for the installation and fixation of the electric box body (1) by the fixed base (6), the square disc (43) is placed in the base disc (41), the water molecules (44) are uniformly scattered in the square disc (43), and the quicklime moisture-proof space (44) can further absorb the moisture of the electric box body (1) to generate a certain amount of the moisture-proof space, thereby the quicklime moisture-proof space (44) can be easily realized, and the lime-proof space between the lime-proof space (44) and the lime-proof space can be further easily realized, the cooperation bar groove (47) has ensured quicklime (44) can with the bottom air between the contact, can take out square disc (43) through hand-held lever (45) and change or clean etc. to quicklime (44), can directly take off apron (46) through bar groove (47).

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