Dehumidification structure and power distribution cabinet thereof

Abstract

The utility model relates to the technical field of power distribution cabinets, and discloses a dehumidification structure and a power distribution cabinet thereof, the dehumidification structure further comprises a fan cover, an electrical cabinet shell, an electrical cabinet main body and an electrical cabinet door fixedly installed on the electrical cabinet shell, the fan cover is a hollow rectangular body fixedly installed, the electrical cabinet shell is a hollow rectangular body with a hollow upper part and a hollow lower part, a fan cover filter screen is fixedly installed on the inner wall of the upper portion of the fan cover, and air inlet holes are evenly distributed in the fan cover filter screen. By arranging the drawable dehumidification mechanism, air blown in by the reciprocating mechanism is filtered and dedusted through the drawer filter screen and then enters the drawer to be in full contact with the drying agent placed in the drying box, and the drawable design facilitates replacement of the invalid drying agent, so that the problems that some existing drying agents are tedious to replace and insufficient in drying at present are solved, and the drying efficiency is improved. Therefore, convenience and high efficiency in dehumidification of the electrical cabinet are realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of power distribution cabinets, and specifically relates to a dehumidification structure and a power distribution cabinet thereof. Background Art

[0002] The electrical cabinets of power transmission substations have very high requirements for the humidity inside the cabinets. If condensation occurs inside, it will cause creepage and flashover accidents. Generally, there are the following situations: First, the humidity in the area is high, the weather temperature changes greatly, the bottom of the switch cabinet is wet, and some cable trenches even have water accumulation; second, some switch cabinets are in the basement, the humidity is high, and the temperature inside the cabinet, especially the temperature close to the ground, is lower than the ambient temperature; third, some equipment is temporarily out of service, and the temperature of the small environment in the electrical cabinet is lower than the surrounding ambient temperature, and condensation is very easy to form on its surface. In this case, once the power is delivered and put into operation, accidents will occur. In order to ensure the safe operation of the power grid system, the long life of electrical equipment, and the safe and effective use of electrical equipment, the power system has put forward higher requirements for moisture and condensation prevention in the cabinet.

[0003] In view of this, the present utility model is proposed. Utility Model Content

[0004] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0005] A dehumidification structure comprises a drawer, wherein the drawer is a hollow rectangular body with a hollow top, a hollow rectangular drawer filter is fixedly installed in the hollow part of the drawer top, a square groove is opened at the bottom end of the drawer, the square grooves are evenly distributed on the bottom wall of the drawer cavity, the square grooves penetrate the bottom wall of the drawer, a drying box is fixedly installed inside the square groove, the drying box is a cylinder that is ventilated and breathable up and down, and a dehumidification drying bag is added in the drying box.

[0006] As a preferred embodiment of the present invention, the dehumidification and drying bag contains a powdered dehumidification and desiccant.

[0007] A power distribution cabinet comprises the dehumidification structure described above, and also comprises a fan cover, an electrical cabinet shell, an electrical cabinet main body and an electrical cabinet door fixedly mounted on the electrical cabinet shell, wherein the fan cover is a hollow rectangular body fixedly mounted on the electrical cabinet shell, the electrical cabinet shell is a hollow rectangular body hollowed out from top to bottom, and a fan cover filter is fixedly mounted on the upper inner wall of the fan cover, the fan cover filter is provided with evenly distributed air inlet holes, a resistance wire is also installed at the bottom of the fan cover filter, a condensation groove is provided on the front side wall of the electrical cabinet shell, cylindrical condensation tubes are fixedly mounted on both sides of the condensation groove, a drying groove is provided on the front side wall of the electrical cabinet shell, the drying groove is located below the condensation groove, the dehumidification mechanism is arranged in the drying groove, an exhaust device for continuously supplying air downward is arranged in the fan cover, a reciprocating mechanism for driving the exhaust device to reciprocate is also arranged in the fan cover, and the exhaust device is arranged on the reciprocating mechanism.

[0008] As a preferred embodiment of the utility model, the drawer is installed in the drying tank in a pull-out manner, and the reciprocating mechanism includes a fixed frame. There are two fixed frames, and the two fixed frames are evenly fixedly installed on both sides of the inside of the fan cover. The fixed frame is a hollow frame body, and a connecting plate is fixedly installed between the two fixed frames. A gear is movably installed on the upper side wall of the connecting plate. A sliding plate is movably installed in the two fixed frames, and the sliding plate is rectangular. Fixed frame grooves are opened on the inner walls on both sides of the two fixed frames. The sliding plate is located on the side wall surfaces of the corresponding fixed frame cavity, and a first slider is fixedly installed, and the first slider is engaged in the fixed frame groove.

[0009] As a preferred embodiment of the utility model, a meshing device is fixedly installed on the top of the wall surface on one side where the two sliding plates are close to each other. The meshing device is arc-shaped, and tooth grooves are opened on the wall surface on one side where the two meshing devices are close to each other. The gears are in meshing state with the tooth grooves on the two meshing devices.

[0010] As a preferred embodiment of the utility model, the exhaust device includes a fan motor and fan blades. The number of the fan motor and the number of the fan blades are two. The two fan motors are respectively fixedly mounted on the bottom of the two sliding plates, and the two fan blades are respectively fixedly mounted on the output ends of the fan motors.

[0011] As a preferred embodiment of the utility model, a rectangular fixing plate is fixedly installed on the top wall of the sliding plate on one side, two groups of ear plates are connected with the top of the fixing plate by bolts, an arc-shaped fixing frame is fixedly installed between the two groups of ear plates, an arc-shaped fixing frame groove is opened in the middle of the arc-shaped fixing frame, a second sliding block is movably engaged in the arc-shaped fixing frame groove, the top of the second sliding block is rotatably connected with a connecting rod, a first motor is fixedly installed at the bottom of the fan cover filter, and the output end of the first motor is fixedly connected to the connecting rod.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] By setting a reciprocating mechanism, the two sliding plates reciprocate on the two fixed frames. When the fan motor is turned on to drive the fan blades to rotate, the air can be discharged from top to bottom, so that the air enters the electrical cabinet casing evenly and fully contacts the dehumidification mechanism, thereby improving the dehumidification efficiency. The problem that the temperature in the existing electrical cabinet is greatly increased due to the inability to remove the heat generated by the electrical equipment in the existing electrical cabinet is solved, thereby realizing air circulation in the electrical cabinet and reducing the temperature in the cabinet.

[0014] By setting a pull-out dehumidification mechanism, the air blown in by the reciprocating mechanism is filtered and dust-removed by the drawer filter before entering the drawer, where it fully contacts the desiccant placed in the drying box. The pull-out design facilitates the replacement of expired desiccant, thereby solving the problems of cumbersome replacement of desiccant and insufficient drying, thereby achieving convenient and efficient dehumidification of the electrical cabinet.

[0015] By setting a condenser tube fixedly installed in the condensation tank, on the one hand, the air blown in from the fan cover is cooled down to prevent the air temperature in the electrical cabinet from being too high and affecting the equipment; on the other hand, the air that is not heated by the resistance wire in the fan cover is simply dehumidified and then enters the drying tank for drying to prevent the air from being too humid, which also affects the equipment.

[0016] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In the attached picture:

[0018] Figure 1 It is a side perspective view of the utility model;

[0019] Figure 2 This is an axial perspective view of the utility model;

[0020] Figure 3 This is a three-dimensional diagram of the drawer of the utility model;

[0021] Figure 4 It is a three-dimensional diagram of the reciprocating mechanism of the utility model;

[0022] Figure 5 This is a three-dimensional diagram of the arc-shaped fixed frame of the utility model;

[0023] Figure 6 It is a three-dimensional diagram of the exhaust device of the utility model.

[0024] In the figure: 10, connecting plate; 11, fixing frame; 12, fixing frame groove; 13, first slider; 14, fan blade; 15, sliding plate; 16, meshing facility; 17, fixing plate; 18, gear; 20, arc-shaped fixing frame; 21, ear plate; 22, arc-shaped fixing frame groove; 23, first motor; 24, second slider; 25, connecting rod; 30, fan motor; 40, fan cover filter; 41, fan cover; 42, electrical cabinet housing; 50, electrical cabinet body; 51, electrical cabinet door; 52, condensation tank; 53, condensation pipe; 54, drying tank; 60, drawer; 61, square groove; 62, drying box; 63, drawer filter. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model.

[0026] A dehumidifying electrical cabinet comprises a fan cover 41, an electrical cabinet shell 42, an electrical cabinet body 50 and an electrical cabinet door 51 fixedly mounted on the electrical cabinet shell 42, wherein the fan cover 41 is a hollow rectangular body fixedly mounted on the hollow rectangular electrical cabinet shell 42 and hollowed out from top to bottom, and a fan cover filter 40 is fixedly mounted on the upper inner wall of the fan cover 41, and the fan cover filter 40 is provided with evenly distributed air inlet holes, and a resistance wire is also installed at the bottom of the fan cover filter 40, a condensation groove 52 is provided on the front side wall of the electrical cabinet shell 42, and cylindrical condensation pipes 53 are fixedly mounted on both sides of the condensation groove 52, a drying groove 54 is provided on the front side wall of the electrical cabinet shell 42, and the drying groove 54 is located below the condensation groove 52, and a dehumidification mechanism is arranged in the drying groove 54, an exhaust device for continuously sending air downward is arranged in the fan cover 41, and a reciprocating mechanism for driving the exhaust device to reciprocate is also arranged in the fan cover 41, and the exhaust device is arranged on the reciprocating mechanism.

[0027] The dehumidification mechanism includes a drawer 60, which is installed in the drying tank 54 in a pull-out manner. The drawer 60 is a hollow rectangular body with a hollow top. A hollow rectangular drawer filter 63 is fixedly installed in the hollow portion of the top of the drawer 60.

[0028] The bottom end of the drawer 60 is provided with a square groove 61 , and the square grooves 61 are evenly distributed on the bottom wall surface of the drawer 60 cavity.

[0029] The square groove 61 passes through the bottom wall of the drawer 60, and a drying box 62 is fixedly installed inside the square groove 61. The drying box 62 is a cylinder that is ventilated and air-permeable up and down. A dehumidification drying bag is added to the drying box 62, and the dehumidification drying bag contains powdered dehumidification desiccant.

[0030] The reciprocating mechanism includes a fixed frame 11, and there are two fixed frames 11. The two fixed frames 11 are fixedly installed on the left and right sides of the inside of the fan cover 41 respectively. The fixed frame 11 is a hollow frame body. A connecting plate 10 is fixedly installed between the two fixed frames 11. A gear 18 is movably installed on the upper wall of the connecting plate 10. A sliding plate 15 is movably installed in each of the two fixed frames 11. The sliding plate 15 is rectangular. Fixed frame grooves 12 are provided on the inner walls on both sides of the two fixed frames 11. The sliding plate 15 is located on the side walls of the corresponding fixed frame 11 cavity, and a first slider 13 is fixedly installed. The first slider 13 is engaged in the fixed frame groove 12.

[0031] A meshing device 16 is fixedly installed on the top of the wall surface on one side where the two sliding plates 15 are close to each other. The meshing device 16 is arc-shaped, and tooth grooves are opened on the wall surface on one side where the two meshing devices 16 are close to each other. The gear 18 is in meshing state with the tooth grooves on the two meshing devices 16.

[0032] The exhaust device includes a fan motor 30 and fan blades 14. The number of the fan motor 30 and the number of the fan blades 14 are both two. The two fan motors 30 are respectively fixedly mounted on the bottom of the two sliding plates 15, and the two fan blades 14 are respectively fixedly mounted on the output ends of the fan motor 30.

[0033] A rectangular fixing plate 17 is fixedly installed on the top wall of the sliding plate 15 on one side, two groups of ear plates 21 are connected to the top of the fixing plate 17 by bolts, an arc-shaped fixing frame 20 is fixedly installed between the two groups of ear plates 21, an arc-shaped fixing frame groove 22 is opened in the middle of the arc-shaped fixing frame 20, a second sliding block 24 is movably engaged in the arc-shaped fixing frame groove 22, a connecting rod 25 is rotatably connected to the top of the second sliding block 24, a first motor 23 is fixedly installed at the bottom of the fan cover filter 40, and the output end of the first motor 23 is fixedly connected to the connecting rod 25.

[0034] The working principle of this utility model:

[0035] The working switches of the two fan motors 30 are turned on, and the fan motors 30 drive their respective fan blades 14 to rotate. The outside air enters the fan cover 41 through the fan cover filter 40. A resistance wire is installed at the bottom of the fan cover filter 40. The heat generated by the resistance wire can heat and dehumidify the incoming air.

[0036] The first motor 23 fixedly installed on the fan cover filter 40 rotates to drive the connecting rod 25 at the bottom to rotate, and the connecting rod 25 rotates to drive the second slider 24 to slide in the arc-shaped fixed frame groove 22, so that the arc-shaped fixed frame 20 forms a reciprocating motion in the horizontal direction. During the reciprocating motion of the arc-shaped fixed frame 20, the sliding plate 15 on one side is driven to reciprocate through the fixed plate 17. During the reciprocating motion, the sliding plate 15 on this side drives the meshing device 16 on it to move, and the tooth groove on the meshing device 16 is in a meshing state with the gear 18, so that the meshing device During the reciprocating motion of mechanism 16, gear 18 can be made to rotate back and forth, and the reciprocating rotation of gear 18 drives the meshing device 16 on the other side to perform reciprocating motion, and the meshing device 16 on this side can drive the sliding plate 15 on this side to perform reciprocating motion, and the sliding plate 15 slides back and forth in the fixed frame 11, and the reciprocating motion of the two sliding plates 15 can drive the fan motors 30 at their respective bottoms to perform reciprocating motion, and the fan motor 30 drives the fan blades 14 to rotate to realize reciprocating downward blowing, thereby forming reciprocating blowing and improving the efficiency of uniform air intake.

[0037] The evenly blown wind enters the condensation tank 52, and through the condensation pipe 53 fixedly installed in the condensation tank 52, the humid water vapor that has not been dried can be condensed to form condensed water droplets, and the heated air can also be cooled.

[0038] The cooled wind is blown into the drying slot 54, filtered and dusted through the drawer filter 63, and then enters the drawer 60 cavity. It is fully dried by fully contacting with the desiccant placed in the drying box 62, so that the air can enter the inner cavity of the fan cover 41 through the square groove 61 evenly. The dried air will not affect the electrical cabinet body 50 in the inner cavity or will have little effect, and finally flows out from the filter on the outer wall of both sides of the electrical cabinet shell 42.

[0039] By setting a reciprocating mechanism, the two sliding plates 15 reciprocate on the two fixed frames 11, and when the fan motor 30 is turned on to drive the fan blades 14 to rotate, the air can be discharged from top to bottom, so that the air enters the electrical cabinet housing 42 evenly and contacts the dehumidification mechanism fully, thereby improving the dehumidification efficiency. The problem that the temperature in the existing electrical cabinet is greatly increased due to the inability to remove the heat generated by the electrical equipment in the existing electrical cabinet is solved, thereby realizing air circulation in the electrical cabinet and reducing the temperature in the cabinet.

[0040] By providing a retractable dehumidification mechanism, the air blown in by the reciprocating mechanism is filtered and dust-removed by the drawer filter 63 and then enters the drawer 60, where it fully contacts the desiccant placed in the drying box 62. The retractable design facilitates the replacement of the failed desiccant, thereby solving the problems of cumbersome replacement of desiccant and insufficient drying of some existing desiccant, thereby achieving convenient and efficient dehumidification of the electrical cabinet.

[0041] By means of the condenser 53 fixedly installed in the condensation tank 52, on the one hand, the air blown in from the fan cover 41 is cooled to prevent the air temperature in the electrical cabinet from being too high and affecting the equipment; on the other hand, the air that is not heated by the resistance wire in the fan cover 41 is simply dehumidified and then enters the drying tank 54 for drying to prevent the air from being too humid and also affecting the equipment.

[0042] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A dehumidification structure, comprising a drawer (60), characterized in that: The drawer (60) is a hollow rectangular body with a hollow top. A hollow rectangular drawer filter (63) is fixedly installed at the hollow part of the top of the drawer (60). A square groove (61) is opened at the bottom end of the drawer (60). The square grooves (61) are evenly distributed on the bottom wall surface of the drawer (60) cavity. The square grooves (61) penetrate the bottom wall surface of the drawer (60). A drying box (62) is fixedly installed inside the square groove (61). The drying box (62) is a cylindrical body that is ventilated and breathable from top to bottom. A dehumidification drying bag is added inside the drying box (62).

2. The dehumidification structure according to claim 1, characterized in that: The dehumidification and drying bag contains powdered dehumidification and drying agent.

3. A power distribution cabinet, characterized in that: A dehumidification structure comprising any one of claims 1 to 2, further comprising a fan cover (41), an electrical cabinet housing (42), an electrical cabinet body (50), and an electrical cabinet door (51) fixedly mounted on the electrical cabinet housing (42), wherein the fan cover (41) is a hollow rectangular body fixedly mounted on the electrical cabinet housing (42), the electrical cabinet housing (42) is a hollow rectangular body hollowed out from top to bottom, and a fan cover filter (40) is fixedly mounted on the upper inner wall of the fan cover (41), the fan cover filter (40) is provided with evenly distributed air inlet holes, and the bottom of the fan cover filter (40) is also provided with a A resistance wire, a condensation groove (52) is provided on the front side wall of the electrical cabinet housing (42), cylindrical condensation tubes (53) are fixedly installed on both sides of the condensation groove (52), a drying groove (54) is provided on the front side wall of the electrical cabinet housing (42), the drying groove (54) is located below the condensation groove (52), a dehumidification mechanism is arranged in the drying groove (54), an exhaust device for continuously sending air downward is arranged in the fan cover (41), a reciprocating mechanism for driving the exhaust device to reciprocate is also arranged in the fan cover (41), and the exhaust device is arranged on the reciprocating mechanism.

4. The power distribution cabinet according to claim 3, characterized in that: The drawer (60) is installed in the drying tank (54) in a movable manner. The reciprocating mechanism comprises a fixed frame (11). There are two fixed frames (11). The two fixed frames (11) are evenly fixedly installed on both sides of the inside of the fan cover (41). The fixed frame (11) is a hollow frame body. A connecting plate (10) is fixedly installed between the two fixed frames (11). A gear (18) is movably installed on the upper wall surface of the connecting plate (10). A sliding plate (15) is movably installed in the two fixed frames (11). The sliding plate (15) is rectangular. The inner walls on both sides of the two fixed frames (11) are provided with fixed frame grooves (12). The sliding plates (15) are fixedly installed with first sliders (13) on the wall surfaces on both sides of the corresponding fixed frame (11) cavity. The first sliders (13) are engaged in the fixed frame grooves (12).

5. The power distribution cabinet according to claim 4, characterized in that: A meshing device (16) is fixedly installed on the top of the wall surface on one side where the two sliding plates (15) are close to each other. The meshing device (16) is arc-shaped. Tooth grooves are provided on the wall surfaces on one side where the two meshing devices (16) are close to each other. The gear (18) is in a meshing state with the tooth grooves on the two meshing devices (16).

6. The power distribution cabinet according to claim 5, characterized in that: The exhaust device comprises a fan motor (30) and a fan blade (14), wherein the number of the fan motor (30) and the number of the fan blade (14) are both two, the two fan motors (30) are respectively fixedly mounted on the bottom of the two sliding plates (15), and the two fan blades (14) are respectively fixedly mounted on the output ends of the fan motor (30).

7. The power distribution cabinet according to claim 6, characterized in that: A rectangular fixing plate (17) is fixedly mounted on the top wall of the sliding plate (15) on one side, two groups of ear plates (21) are connected to the top of the fixing plate (17) by bolts, an arc-shaped fixing frame (20) is fixedly mounted between the two groups of ear plates (21), an arc-shaped fixing frame groove (22) is provided in the middle of the arc-shaped fixing frame (20), a second sliding block (24) is movably engaged in the arc-shaped fixing frame groove (22), a connecting rod (25) is rotatably connected to the top of the second sliding block (24), a first motor (23) is fixedly mounted on the bottom of the fan cover filter (40), and an output end of the first motor (23) is fixedly connected to the connecting rod (25).

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