Moisture-proof device for subway power distribution cabinet

Abstract

The utility model discloses a subway power distribution cabinet moisture-proof device which comprises a cabinet body, a cross flow fan, a heating plate, a temperature and humidity controller, a detection device, a centralized power supply control device and a drawing assembly. The cross-flow fan is arranged on the inner side of the top end of the cabinet body, the input end of the cross-flow fan is communicated with the outside, and the output end of the cross-flow fan faces the inside of the cabinet body; the heating plate, the temperature and humidity controller, the detection device and the centralized power supply control device are arranged on the inner side of the cabinet body, the detection device is electrically connected with the temperature and humidity controller, and the centralized power supply control device is electrically connected with the heating plate and the temperature and humidity controller; the drawing assembly is slidably connected to the inner side of the bottom end of the cabinet body and can slide in the width direction of the cabinet body, and a drying agent is arranged in the drawing assembly; and arc-shaped air deflectors are arranged at three corners, far away from the cross flow fan, in the cabinet body. According to the invention, dehumidification work can be carried out on the interior of the power distribution cabinet before the power distribution cabinet is electrified, and stable operation of the power distribution cabinet after startup is ensured.

Description

Technical Field

[0001] This application relates to the field of subway power distribution cabinet technology, and in particular to a moisture-proof device for subway power distribution cabinets. Background Technology

[0002] During subway construction, poor ventilation and water accumulation often lead to high humidity levels in power supply equipment rooms. Excessive humidity can reduce the insulation of electrical equipment and promote mold growth, which can corrode components and cause electrical malfunctions or equipment damage, resulting in property loss. Nowadays, distribution cabinets primarily use computer-controlled automation and PLC technology. The electrical components and systems within these cabinets have increasingly stringent environmental requirements. However, the dehumidification equipment installed in these cabinets only functions after the cabinet is energized; it cannot be dehumidified before the cabinet is powered on. This often leads to malfunctions due to excessive humidity after the cabinet is turned on, and traditional dehumidifiers are not suitable for the interior of these cabinets. Utility Model Content

[0003] This application provides a moisture-proof device for subway power distribution cabinets, which solves the technical problem in the prior art where the dehumidification equipment installed in the power distribution cabinet can only work after the cabinet is energized, and cannot be dehumidified before the cabinet is energized, resulting in frequent malfunctions of the power distribution cabinet due to excessive humidity after it is turned on. This application enables dehumidification of the inside of the power distribution cabinet before it is energized, ensuring stable operation of the power distribution cabinet after it is turned on.

[0004] This application provides a moisture-proof device for a subway power distribution cabinet, comprising a cabinet body, a crossflow fan, a heating plate, a temperature and humidity controller, a detection device, a centralized power control device, and a pull-out assembly. The crossflow fan is located on the inner top of the cabinet body, with its input end connected to the outside and its output end facing the inside of the cabinet body. The heating plate, the temperature and humidity controller, the detection device, and the centralized power control device are respectively located on the inner side of the cabinet body. The detection device is electrically connected to the temperature and humidity controller, and the centralized power control device is electrically connected to both the heating plate and the temperature and humidity controller. The pull-out assembly is slidably connected to the inner bottom of the cabinet body and can slide along the width of the cabinet body. A desiccant is provided inside the pull-out assembly. Arc-shaped air guide plates are provided at the three corners of the cabinet body away from the crossflow fan.

[0005] In one possible implementation, a first plate is fixedly connected between the two lower arc-shaped air guide plates, and the first plate has multiple first through holes; the pull-out assembly is located below the first plate.

[0006] In one possible implementation, the pull-out assembly includes a drawer; the outer side of the drawer is slidably connected to the inner side of the bottom end of the cabinet, the front end of the drawer has a pull-out opening, and the interior of the drawer is provided with the desiccant.

[0007] In one possible implementation, the pull-out assembly further includes a second plate; the second plate is detachably connected to the inside of the drawer, and there is a certain distance between the second plate and the bottom surface of the drawer; the second plate has a plurality of second through holes; the desiccant is placed on the second plate.

[0008] In one possible implementation, the moisture-proof device for a subway distribution cabinet provided in this application further includes a sealing assembly; the sealing assembly includes a sealing plate, a U-shaped bracket, a handle, two guide frames, and two fasteners; the sealing plate is disposed on the outer top of the cabinet and below the crossflow fan; the sealing plate is fixedly connected to the top of the U-shaped bracket; the handle is fixedly connected to the outer bottom of the U-shaped bracket; the two guide frames are fixedly connected to the outer side of the cabinet and slidably connected to the U-shaped bracket; the two fasteners respectively pass through the two guide frames and are threadedly connected to the two guide frames.

[0009] In one possible implementation, the front end of the cabinet is provided with a door panel.

[0010] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0011] This application uses a centralized power control device and a heating plate to heat the air inside the cabinet, thereby reducing the humidity inside the cabinet. Furthermore, by setting up a crossflow fan, the hot air is blown by the crossflow fan and can form a circulating airflow inside the cabinet through the arc-shaped air guide plate, thus creating an air curtain effect to prevent the entry of external moisture and ensure that dehumidification is carried out before the power distribution cabinet is powered on.

[0012] The cabinet can be further dehumidified by using pull-out components and desiccants.

[0013] With the set detection device and temperature and humidity controller, the temperature and humidity data inside the cabinet can be detected and compared with the temperature and humidity set values ​​that have been input into the temperature and humidity controller in advance, thereby controlling the heating plate and crossflow fan to work and realize automatic operation;

[0014] This invention effectively solves the technical problem in existing technologies where the dehumidification equipment installed in the distribution cabinet can only work after the cabinet is energized, and cannot be dehumidified before the cabinet is energized, which often leads to malfunctions in the distribution cabinet after it is turned on due to excessive humidity. This invention enables dehumidification of the inside of the distribution cabinet before it is energized, ensuring stable operation of the distribution cabinet after it is turned on. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments of this utility model or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 An isometric view of a moisture-proof device for a subway power distribution cabinet provided in an embodiment of this application;

[0017] Figure 2 for Figure 1 Axonometric view from another direction after the door panel has been removed;

[0018] Figure 3 for Figure 1 Axonometric view of the door panel removed and the pull-out assembly pulled out horizontally;

[0019] Figure 4 This is an isometric view of the pull-out assembly provided in an embodiment of this application.

[0020] Reference numerals: 1-Cabinet body; 11-Door panel; 2-Crossflow fan; 3-Heating plate; 4-Temperature and humidity controller; 5-Detection device; 6-Centralized power control device; 7-Drawer assembly; 71-Drawer; 711-Drawer opening; 712-Overlapping block; 72-Second flat plate; 721-Second through hole; 8-Arc-shaped air guide plate; 81-First flat plate; 811-First through hole; 9-Sealing assembly; 91-Sealing plate; 92-U-shaped bracket; 93-Handle; 94-Guide frame; 95-Fastener. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0022] In the description of the embodiments of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this utility model can be understood according to the specific circumstances.

[0023] Reference Figure 1-3This application provides a moisture-proof device for a subway power distribution cabinet, comprising a cabinet 1, a crossflow fan 2, a heating plate 3, a temperature and humidity controller 4, a detection device 5, a centralized power control device 6, and a pull-out assembly 7. The crossflow fan 2 is located on the inner side of the top of the cabinet 1, with its input end connected to the outside and its output end facing the inside of the cabinet 1. The heating plate 3, temperature and humidity controller 4, detection device 5, and centralized power control device 6 are respectively located on the inner side of the cabinet 1. The detection device 5 is electrically connected to the temperature and humidity controller 4, and the centralized power control device 6 is electrically connected to both the heating plate 3 and the temperature and humidity controller 4. The pull-out assembly 7 is slidably connected to the inner side of the bottom of the cabinet 1 and can slide along the width of the cabinet 1. A desiccant is provided inside the pull-out assembly 7. Arc-shaped air guide plates 8 are provided at the three corners of the cabinet 1 away from the crossflow fan 2. In this embodiment, the heating plate 3 is an adjustable temperature silicone heating plate, fixed to the equipment by a magnetic base for easy installation and disassembly. It is connected to the magnetic base via pure copper terminals for safety and stability. Before the power distribution cabinet is powered on, the heating plate 3 is activated to heat the air inside the cabinet 1. Simultaneously, the crossflow fan 2 blows the heated air through three arc-shaped air guide plates 8, creating an air curtain effect that prevents external moisture from entering. By placing a desiccant in the pull-out assembly 7 beforehand, the air inside the cabinet 1 can be further dehumidified, ensuring... The system ensures dehumidification before powering on the distribution cabinet. Through the detection device 5 and temperature and humidity controller 4, the system can detect the temperature and humidity data inside the cabinet 1 and compare it with the pre-entered temperature and humidity settings in the controller 4. This controls the heating plate 3 and the crossflow fan 2 to operate automatically. Specifically, the temperature and humidity controller 4 is set to control both temperature and humidity: temperature control: set the start-up temperature to approximately 15℃ and the shutdown temperature to approximately 50℃ (low start, high shutdown); humidity control: set the start-up humidity to approximately 80% and the shutdown temperature to approximately 40% (high start, low shutdown), with humidity control being the primary focus.

[0024] Reference Figure 1-2 A first flat plate 81 is fixedly connected between the two lower arc-shaped air guide plates 8, and the first flat plate 81 has multiple first through holes 811; the pull-out assembly 7 is disposed below the first flat plate 81. In this embodiment, the first flat plate 81 is further provided so that the heated air after passing through the lower arc-shaped air guide plates 8 can be guided by the top surface of the first flat plate 81. At the same time, through the provided first through holes 811, the humid air inside the cabinet 1 can enter the pull-out assembly 7 through the first through holes 811 and come into contact with the desiccant, thereby dehumidifying the inside of the cabinet 1 through the desiccant.

[0025] Reference Figure 3-4The pull-out assembly 7 includes a drawer 71; the outer side of the drawer 71 is slidably connected to the inner side of the bottom end of the cabinet 1, and the front end of the drawer 71 has a pull-out opening 711. A desiccant is placed inside the drawer 71. Specifically, in this embodiment, the pull-out assembly 7 includes a drawer 71, with a pull-out opening 711 at the front end of the drawer 71, facilitating the horizontal pulling out of the drawer 71, thereby facilitating the removal and placement of the desiccant inside the drawer 71, and making it easy to replace the desiccant.

[0026] Reference Figure 3-4 The pull-out assembly 7 also includes a second plate 72; the second plate 72 is detachably connected to the inside of the drawer 71, and there is a certain gap between the second plate 72 and the bottom surface of the drawer 71; the second plate 72 has multiple second through holes 721; and desiccant is placed on the second plate 72. In this embodiment, the second plate 72 is further provided to divide the inside of the drawer 71 into upper and lower layers. Desiccant is placed on the second plate 72. If the humidity inside the cabinet 1 is too high and liquid accumulates, the liquid will enter the space between the second plate 72 and the bottom surface of the drawer 71 through the first through hole 811 and the second through hole 721 for collection, avoiding damage to the electrical components inside the cabinet 1; specifically, four overlapping blocks 712 are provided on the inside of the drawer 71, and the second plate 72 overlaps the four overlapping blocks 712.

[0027] Reference Figure 1 , 3 The moisture-proof device for a subway power distribution cabinet provided in this application embodiment also includes a sealing component 9; the sealing component 9 includes a sealing plate 91, a U-shaped bracket 92, a handle 93, two guide frames 94, and two fasteners 95; the sealing plate 91 is disposed on the outer top of the cabinet 1 and below the crossflow fan 2; the sealing plate 91 is fixedly connected to the top of the U-shaped bracket 92; the handle 93 is fixedly connected to the outer bottom of the U-shaped bracket 92; the two guide frames 94 are fixedly connected to the outer side of the cabinet 1 and are slidably connected to the U-shaped bracket 92; the two fasteners 95 respectively pass through the two guide frames 94 and are threadedly connected to the two guide frames 94. In this embodiment, a sealing component 9 is further provided, wherein the fastener 95 is a fastening bolt. When the entire device is not in use, by lifting the handle 93, the U-shaped bracket 92 is moved upward, which in turn moves the sealing plate 91 upward and seals the input end of the crossflow fan 2. Then, the two fasteners 95 are tightened, thereby fixing the U-shaped bracket 92 and the guide frame 94 together, ensuring that the sealing plate 91 can seal the input end of the crossflow fan 2, preventing external moisture from entering the cabinet 1 through the input end of the crossflow fan 2. When the distribution cabinet needs to be used, the sealing plate 91 can be lowered and opened. After opening, it can ensure that the crossflow fan 2 can blow air into the cabinet 1 normally.

[0028] Reference Figure 1The cabinet 1 has a door panel 11 at its front end. In this embodiment, the door panel 11 is specifically provided, and one side of the door panel 11 is rotatably connected to the front end of the cabinet 1 via a hinge, which facilitates the opening and closing of the door panel 11.

[0029] The various embodiments in this specification are described in a progressive manner. For the same or similar parts between the various embodiments, please refer to each other. Each embodiment focuses on describing the differences from other embodiments.

[0030] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of this application.

Claims

1. A subway power distribution cabinet moisture-proof device, characterized in that, It includes a cabinet (1), a crossflow fan (2), a heating plate (3), a temperature and humidity controller (4), a detection device (5), a centralized power control device (6), and a pull-out assembly (7); The crossflow fan (2) is located on the inner side of the top of the cabinet (1). The input end of the crossflow fan (2) is connected to the outside, and the output end of the crossflow fan (2) faces the inside of the cabinet (1). The heating plate (3), the temperature and humidity controller (4), the detection device (5) and the centralized power control device (6) are respectively located on the inner side of the cabinet (1). The detection device (5) is electrically connected to the temperature and humidity controller (4), and the centralized power control device (6) is electrically connected to the heating plate (3) and the temperature and humidity controller (4) respectively. The pull-out assembly (7) is slidably connected to the inner side of the bottom end of the cabinet (1) and can slide along the width direction of the cabinet (1). A desiccant is provided inside the pull-out assembly (7). Arc-shaped air guide plates (8) are provided at the three corners of the cabinet (1) away from the crossflow fan (2).

2. The subway power distribution cabinet moisture-proof device according to claim 1, characterized in that, A first plate (81) is fixedly connected between the two lower arc-shaped air guide plates (8), and the first plate (81) has a plurality of first through holes (811); The pull-out component (7) is located below the first flat plate (81).

3. The subway power distribution cabinet moisture-proof device according to claim 1, characterized in that, The pull-out assembly (7) includes a drawer (71); The drawer (71) is slidably connected to the inner bottom of the cabinet (1) on the outside. The front end of the drawer (71) is provided with a pull-out opening (711). The desiccant is provided inside the drawer (71).

4. The subway power distribution cabinet moisture-proof device according to claim 3, characterized in that, The pull-out assembly (7) also includes a second flat plate (72); The second plate (72) is detachably connected to the inside of the drawer (71), and there is a certain distance between the second plate (72) and the bottom surface of the drawer (71); The second plate (72) has multiple second through holes (721); The desiccant is placed on the second plate (72).

5. The subway power distribution cabinet moisture-proof device according to claim 1, characterized in that, It also includes a sealing component (9); The sealing assembly (9) includes a sealing plate (91), a U-shaped bracket (92), a handle (93), two guide frames (94), and two fasteners (95); The sealing plate (91) is located on the outer top of the cabinet (1) and below the crossflow fan (2); The sealing plate (91) is fixedly connected to the top end of the U-shaped bracket (92); The handle (93) is fixedly connected to the outer side of the bottom end of the U-shaped bracket (92); The two guide frames (94) are fixedly connected to the outside of the cabinet (1) and slidably connected to the U-shaped bracket (92); The two fasteners (95) pass through the two guide frames (94) respectively and are threadedly connected to the two guide frames (94).

6. The subway power distribution cabinet moisture-proof device according to claim 1, characterized in that, The front end of the cabinet (1) is provided with a door panel (11).

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