Automatic drying and moisture-proof power distribution cabinet

Abstract

The utility model discloses an automatic drying moisture-proof power distribution cabinet, which comprises a cabinet body, a drying assembly is arranged at the top of the cabinet body, the drying assembly comprises a drying shell, a wind collecting plate and a heating mechanism, the top of the drying shell is detachably connected with the top of the cabinet body, and the wind collecting plate and the heating mechanism are both arranged in the drying shell. Meanwhile, the air collecting plate is arranged above the heating mechanism, and ventilation holes are formed in the position, right opposite to the drying shell, of the side wall of the cabinet body. According to the utility model, the top of the power distribution cabinet is provided with the drying assembly, the humidity in the power distribution cabinet can be monitored in real time through the drying assembly, the humidity of gas in the power distribution cabinet is reduced according to the monitoring result, the problems of corrosion of electrical components, reduction of insulation performance and the like are avoided, and the drying of the power distribution cabinet by using a drying agent is changed to improve the humidity. The drying agent needs to be manually replaced, and the drying of the power distribution cabinet is affected due to negligence and late replacement or building replacement.

Description

Technical Field

[0001] The utility model relates to the technical field of distribution cabinet drying, and specifically relates to a distribution cabinet with automatic drying and moisture-proof functions. Background Technique

[0002] Due to the distribution cabinet having a sturdy and durable shell, a reasonable layout inside, and good insulation performance, it is widely used in the power system. It can distribute the electric energy received from the superior power supply to each branch and electrical equipment according to different requirements and loads, and can also monitor power parameters in real time, such as voltage, current, power, etc., and display the operating status of the equipment.

[0003] Currently, there are various types of distribution cabinets on the market. However, their main structures are mostly the same. For example, a distribution cabinet disclosed in a Chinese patent with the publication number CN111463697A has at least one switch unit, a monitoring terminal, and a collection terminal in the cabinet body; the switch unit has an incoming line connector, an outgoing line connector, and a first signal connector; the monitoring terminal has a first signal connector; the collection terminal has a second signal connector and a second signal connector; the switch unit is plugged and connected to the second signal connector of the collection terminal through the first signal connector; the monitoring terminal is plugged and connected to the second signal connector of the collection terminal through the first signal connector. The distribution cabinet can be provided with multiple columns of switch units at the same time to meet user needs, reduce costs, and has local or remote monitoring, management, protection, and control functions, improving work efficiency and the intelligent level of the distribution cabinet.

[0004] Due to different seasons, the humidity in the air will also change. If the electrical appliances in the distribution cabinet are in a humid environment for a long time, it will cause corrosion of electrical components and a decrease in insulation performance. To solve this problem, there are distribution cabinets with drying functions on the market. For example, a moisture-proof distribution cabinet disclosed in a Chinese patent with the publication number CN112398009B includes a cabinet body, a switchable cabinet door is provided on the cabinet body, a fixedly connected door handle is provided on one side of the cabinet door, a storage tank is provided inside the inner wall of the cabinet body, a desiccant is stored in the storage tank, and a plurality of long strip-shaped and evenly distributed drying holes communicating with the storage tank are provided on the cabinet body. The design of the storage tank and the desiccant can effectively adsorb the moisture in the cabinet body by using the desiccant, thereby achieving moisture-proof in the cabinet body.

[0005] Although the desiccant is stored in the distribution cabinet provided by the above patent, it can dry the gas entering the distribution cabinet through the desiccant and improve the dryness inside the distribution cabinet. However, its performance changes after drying and absorbing water. Therefore, after using it for a period of time, the desiccant needs to be replaced. Otherwise, it will affect the drying function of the distribution cabinet. And replacing the desiccant requires manual operation, and it is very easy to delay or miss replacing the desiccant of some distribution cabinets due to negligence, affecting the drying effect of the distribution cabinet. Content of the Utility Model

[0006] The purpose of the present utility model is to provide a power distribution cabinet with automatic drying and moisture-proof functions, aiming to improve the drying degree of the power distribution cabinet by using desiccants, and to solve the problem that the drying effect is easily affected by replacing the desiccants.

[0007] The present utility model is realized as follows: A power distribution cabinet with automatic drying and moisture-proof functions includes a cabinet body. A drying component is arranged at the top of the cabinet body. The drying component includes a drying shell, a wind collecting plate, and a heating mechanism. The top of the drying shell is detachably connected to the top of the cabinet body, and both the wind collecting plate and the heating mechanism are arranged in the drying shell. At the same time, the wind collecting plate is arranged above the heating mechanism. A ventilation hole is arranged at the position on the side wall of the cabinet body opposite to the drying shell.

[0008] Preferably, the drying shell is arranged in a U-shaped structure, and the opening faces the top of the drying shell. The end of the drying shell extends into the ventilation hole, and a shielding cover is arranged on the side of the ventilation hole.

[0009] Preferably, an air outlet hole is arranged on the bottom surface of the drying shell, and a card slot is arranged on the side wall. The upper end of the card slot is open. A filter screen is arranged at the end of the drying shell, and the end of the filter screen extends into the card slot.

[0010] Preferably, the wind collecting plate is also arranged in a U-shaped structure, and the opening faces the top of the drying shell. The length of the wind collecting plate is less than the length of the drying shell, and the upper side surface is flush with the upper side surface of the drying shell.

[0011] Preferably, a plurality of fans are embedded at the end of the wind collecting plate, and a perforation is arranged at the bottom of the wind collecting plate. The perforation is arranged along the length direction of the wind collecting plate.

[0012] Preferably, the heating mechanism includes a heating wire, two end plates, and two fixing plates. The two end plates are arranged on the adjacent side surfaces of the two fixing plates and are installed at the ends of the heating wire. The heating wire and the fans are both electrically connected to a controller installed below the drying shell. At the same time, a humidity sensor is also arranged below the drying shell.

[0013] Preferably, the two fixing plates are detachably connected to the drying shell and are located below the wind collecting plate and are flush with the end surface of the wind collecting plate. The number of the heating wires is equal to the number of the perforations, and the heating wires are located directly below the perforations.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] 1. The utility model is provided with a drying component at the top of the distribution cabinet, which can monitor the humidity inside the distribution cabinet in real time through the drying component, and work according to the monitoring results to increase or decrease the humidity of the gas inside the distribution cabinet, avoiding problems such as corrosion of electrical components and decline in insulation performance, and changing the current situation of using desiccants to dry the distribution cabinet to improve its humidity, which requires manual replacement of desiccants, and the late replacement or omission due to negligence affects the drying of the distribution cabinet.

[0016] 2. The utility model is provided with a heating wire and the perforation of the air collecting plate is opposite to the heating wire. Therefore, when the gas enters the air collecting plate, it will output from the perforation and flow to the side of the heating wire. By the working of the heating wire, the temperature of the heating wire is increased to realize the drying of the gas; due to the continuous input of dry gas, the pressure inside the cabinet increases, and the gas originally remaining in the distribution cabinet will output, so the humidity of the distribution cabinet is reduced, effectively avoiding the corrosion of electrical components. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of an embodiment of the utility model;

[0018] Figure 2 is a schematic structural diagram of the top of the cabinet body of the utility model;

[0019] Figure 3 is a schematic structural diagram of the drying shell, air collecting plate and heating mechanism of the utility model;

[0020] Figure 4 is a schematic structural diagram of the drying shell of the utility model;

[0021] Figure 5 is a schematic structural diagram of the heating mechanism of the utility model;

[0022] Figure 6 is a schematic structural diagram of the air collecting plate of the utility model.

[0023] In the figure: 1. Cabinet body; 11. Ventilation hole; 12. Shielding cover; 2. Drying shell; 21. Air outlet hole; 22. Card slot; 23. Filter screen; 24. Controller; 25. Humidity sensor; 3. Air collecting plate; 31. Perforation; 32. Fan; 4. Heating mechanism; 41. Heating wire; 42. End plate; 43. Fixed plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] The following will be further described in conjunction with the accompanying drawings and specific embodiments:

[0026] Embodiment 1

[0027] In order to be able to change the situation that the desiccant is used to dry the power distribution cabinet to improve its humidity, and manual replacement of the desiccant is required, as well as the situation that the late replacement or incorrect replacement due to negligence affects the drying of the power distribution cabinet, a drying component is added to the existing power distribution cabinet in this embodiment. The drying component can monitor the humidity inside the power distribution cabinet in real time and work according to the monitoring results to increase or decrease the humidity of the gas inside the power distribution cabinet, avoiding problems such as corrosion of electrical components and decline in insulation performance.

[0028] As Figure 1 shown, before introducing the structure of the drying component, the power distribution cabinet of the prior art will be briefly introduced first. It includes a cabinet body 1, a cabinet door, a busbar chamber, a circuit breaker chamber, a contactor chamber, a relay chamber, an instrument chamber, etc. The cabinet body 1 is made of a metal material, such as steel plate, to provide a strong outer shell to protect the internal equipment. The busbar chamber is used for installing and arranging the main busbars to realize the input and distribution of electric energy. The circuit breaker chamber installs switch devices such as circuit breakers to control the on-off of the circuit. The contactor chamber places control elements such as contactors. The relay chamber accommodates various relays to realize signal conversion and control. The instrument chamber installs measuring instruments, such as a voltmeter, an ammeter, a power meter, etc., to monitor power parameters.

[0029] As Figure 1 、 Figure 2 、 Figure 3As shown in the figure, in order to dry the above-mentioned power distribution cabinet and reduce the humidity of the air inside it, a drying component is provided at the top of the cabinet body 1. The drying component includes a drying shell 2, a wind collecting plate 3, and a heating mechanism 4. The drying shell 2 is set in a U-shaped structure with the opening facing the top of the drying shell 2, and is connected to the top of the cabinet body 1 by bolts. The wind collecting plate 3 is also set in a U-shaped structure with the opening facing the top of the drying shell 2. The length of the wind collecting plate 3 is less than that of the drying shell 2, and its upper side is flush with the upper side of the drying shell 2, and it is installed in the drying shell 2 by bolts. In addition, a heating mechanism 4 is arranged in the gap formed between the bottom of the wind collecting plate 3 and the bottom of the drying shell 2. Therefore, under the action of the heating mechanism 4, the gas flowing from the wind collecting plate 3 to the drying shell 2 can be heated to reduce its humidity. By continuously inputting dry gas into the cabinet body 1, the humidity inside the power distribution cabinet can be increased. In order to be able to input gas into the wind collecting plate 3, a ventilation hole 11 is provided at the position on the side wall of the cabinet body 1 opposite to the drying shell 2. The end of the drying shell 2 extends into the ventilation hole 11, and a shielding cover 12 is arranged on the side of the ventilation hole 11. Therefore, gas can be input into the wind collecting plate 3 from this ventilation hole 11.

[0030] As Figure 3 shown, in order to be able to know the humidity inside the power distribution cabinet, a controller 24 is provided below the drying shell 2, and a humidity sensor 25 is also provided. The humidity sensor 25 is arranged through the bottom of the drying shell 2, and the humidity sensor 25 is electrically connected to the controller 24. In addition, the controller 24 can be set as a programmable logic controller (PLC). Therefore, the humidity inside the power distribution cabinet can be monitored in real time through the humidity sensor 25, and the monitoring information is transmitted to the controller 24, and the controller 24 controls the operation of other devices to input dry gas into the cabinet body 1 and discharge the humid gas.

[0031] As Figure 6 shown, in order to be able to force the outside gas to flow to the wind collecting plate 3, a plurality of fans 32 are embedded at the end of the wind collecting plate 3. The fans 32 are electrically connected to the controller 24. Therefore, after obtaining the humidity information in the cabinet body 1, the controller 24 can control the fans 32 to work, forcing the gas outside the cabinet body 1 to pass through the ventilation hole 11 and enter the cabinet body 1.

[0032] As Figure 6 shown, a perforation 31 is provided at the bottom of the wind collecting plate 3. The perforation 31 is arranged along the length direction of the wind collecting plate 3. The gas entering the wind collecting plate 3 is output from the perforation 31 and then flows to the side of the heating mechanism 4.

[0033] As Figure 5As shown in the figure, in order to reduce the humidity of the gas flowing to the side of the heating mechanism 4, the heating mechanism 4 includes a heating wire 41, two end plates 42 and two fixing plates 43. The two end plates 42 are arranged on the adjacent sides of the two fixing plates 43 and are installed at the ends of the heating wire 41. Therefore, under the action of the end plates 42, the heating wire 41 can be stably installed relative to the fixing plates 43. The heating wire 41 is electrically connected to the controller 24. Therefore, after obtaining the humidity information in the cabinet body 1, the controller 24 can control the heating wire 41 to work so as to increase the temperature of the gas through the heating wire 41.

[0034] As Figure 3 shown in the figure, in order to stably install the heating mechanism 4, the two fixing plates 43 are detachably connected to the drying shell 2 and are located below the air collecting plate 3 and flush with the end face of the air collecting plate 3. In addition, the upper and lower side surfaces of the fixing plate 43 are respectively in contact with the bottom of the drying shell 2 and the bottom of the air collecting plate 3. Therefore, the gas is restricted to flow only from the air collecting plate 3 to the drying shell 2, which provides convenience for increasing the temperature of the gas through the heating wire 41.

[0035] As Figure 4 shown in the figure, in order to allow the gas to flow from the air collecting plate 3 to the drying shell 2, an air outlet hole 21 is provided on the bottom surface of the drying shell 2. In addition, the number of the through holes 31 is equal to the number of the heating wires 41, and the heating wires 41 are located directly below the through holes 31.

[0036] Embodiment 2

[0037] As Figure 4 shown in the figure, on the basis of Embodiment 1, in order to prevent impurities from entering the cabinet body 1, a clamping groove 22 is provided on the side wall of the drying shell 2. The upper end of the clamping groove 22 is open, and a filter screen 23 is provided at the end of the drying shell 2. The end of the filter screen 23 extends into the clamping groove 22. Therefore, under the action of the filter screen 23, impurities are effectively intercepted.

[0038] The above is only the preferred embodiment of the present invention and is not used to limit the present invention. For those skilled in the art, various changes and modifications can be made to the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic drying and moisture-proof distribution cabinet, comprising a cabinet body (1), characterized in that: A drying component is provided at the top of the cabinet body (1). The drying component includes a drying shell (2), an air collecting plate (3) and a heating mechanism (4). The top of the drying shell (2) is detachably connected to the top of the cabinet body (1). The air collecting plate (3) and the heating mechanism (4) are both arranged in the drying shell (2). At the same time, the air collecting plate (3) is arranged above the heating mechanism (4). A ventilation hole (11) is provided at a position on the side wall of the cabinet body (1) facing the drying shell (2).

2. The automatic drying and moisture-proof distribution cabinet according to claim 1, characterized in that: The drying shell (2) is arranged in a U-shaped structure with the opening facing the top of the drying shell (2). The end of the drying shell (2) extends into the ventilation hole (11). A shielding cover (12) is provided on the side of the ventilation hole (11).

3. The automatic drying and moisture-proof distribution cabinet according to claim 2 is characterized in that: An air outlet hole (21) is provided on the bottom surface of the drying shell (2), and a card slot (22) is provided on the side wall. The upper end of the card slot (22) is open. A filter screen (23) is provided at the end of the drying shell (2), and the end of the filter screen (23) extends into the card slot (22).

4. The automatic drying and moisture-proof distribution cabinet according to claim 3 is characterized in that: The air collecting plate (3) is also arranged in a U-shaped structure with the opening facing the top of the drying shell (2). The length of the air collecting plate (3) is less than the length of the drying shell (2), and the upper side surface is flush with the upper side surface of the drying shell (2).

5. The automatic drying and moisture-proof distribution cabinet according to claim 4, characterized in that: A plurality of fans (32) are embedded at the end of the air collecting plate (3), and a perforation (31) is provided at the bottom of the air collecting plate (3). The perforation (31) is arranged along the length direction of the air collecting plate (3).

6. The automatic drying and moisture-proof distribution cabinet according to claim 5, characterized in that: The heating mechanism (4) includes a heating wire (41), two end plates (42) and two fixing plates (43). The two end plates (42) are arranged on the adjacent side surfaces of the two fixing plates (43) and are installed at the ends of the heating wire (41). The heating wire (41) and the fans (32) are both electrically connected to a controller (24) installed below the drying shell (2). At the same time, a humidity sensor (25) is also provided below the drying shell (2).

7. The automatic drying and moisture-proof distribution cabinet according to claim 6, characterized in that: The two fixing plates (43) are detachably connected to the drying shell (2), are located below the air collecting plate (3), and are flush with the end surface of the air collecting plate (3). The number of the heating wires (41) is equal to the number of the perforations (31), and the heating wires (41) are located directly below the perforations (31).

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