Grid-connected cabinet

Abstract

The utility model relates to the technical field of grid-connected cabinets, in particular to a grid-connected cabinet, which comprises a cabinet body, a plurality of cover plates are rotatably connected to one side of the cabinet body, a radiating square tube with one end movably extending to the outside of the cabinet body is arranged in the cabinet body, and a servo electric cylinder with an output end movably extending to the inside of the radiating square tube is arranged on one side of the inner wall of the cabinet body. A double-layer filtering assembly is installed in the square heat dissipation pipe. The double-layer filtering assembly comprises an inner-layer filtering assembly fixedly connected with the output end of the servo electric cylinder and an outer-layer filtering assembly installed at the end, away from the servo electric cylinder, of the square heat dissipation pipe, and an exhaust fan is installed between the inner-layer filtering assembly and the outer-layer filtering assembly. And one end, close to the outer-layer filtering assembly, of the heat dissipation square pipe is communicated with an external expansion pipe. The problems that an existing grid-connected cabinet is difficult to prevent external water vapor from entering the grid-connected cabinet along with air, excessive moisture in the grid-connected cabinet is likely to occur, and the risk of circuit faults in the grid-connected cabinet is increased are solved.

Description

Technical Field

[0001] This utility model relates to the field of grid-connected cabinet technology, specifically a grid-connected cabinet. Background Technology

[0002] The electricity generated by the hydropower station needs to be connected to the Internet through a grid-connected cabinet and a transformer. According to the search, the patent application number CN202322004860.X discloses a grid-connected cabinet. There is a height difference between the two ends of the heat dissipation pipe. The height of the end of the heat dissipation pipe near the heat dissipation hole is lower than the height of the end of the heat dissipation pipe near the inner cavity of the cabinet. When the heat dissipation window is opened for heat dissipation, the internal components are not directly exposed to the user's view. Water droplets will not flow into the cabinet due to the height difference of the heat dissipation channel, providing a stable and reliable heat dissipation environment with good heat dissipation effect and low safety risk.

[0003] Although the above-mentioned devices can prevent moisture from entering the grid-connected cabinet through the heat dissipation windows, the grid-connected cabinet is not airtight. Moisture in the air can still enter the grid-connected cabinet through the gaps. In particular, the humidity around hydropower stations is high and the moisture content in the air is even higher, which puts forward higher requirements for the moisture and dust prevention of the grid-connected cabinet. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a grid-connected cabinet that solves the problem that existing grid-connected cabinets cannot prevent external moisture from entering the cabinet with the air, which can easily lead to excessive moisture inside the cabinet and increase the risk of internal circuit failure.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a grid-connected cabinet, including a cabinet body, a plurality of cover plates rotatably connected to one side of the cabinet body, a heat dissipation square tube with one end extending movably to the outside of the cabinet body, a servo electric cylinder with its output end extending movably into the heat dissipation square tube on one side of the inner wall of the cabinet body, and a double-layer filter assembly installed inside the heat dissipation square tube.

[0006] The dual-layer filter assembly includes an inner filter assembly fixedly connected to the output end of the servo electric cylinder, and an outer filter assembly installed at the end of the heat dissipation square tube away from the servo electric cylinder. An exhaust fan is installed between the inner filter assembly and the outer filter assembly.

[0007] Preferably, the end of the heat dissipation square tube near the outer filter component is connected to an expansion tube, the cross-sectional area of ​​the expansion tube is larger than the cross-sectional area of ​​the heat dissipation square tube, the inner bottom of the expansion tube is on the same plane as the inner bottom of the heat dissipation square tube, and the exhaust fan is installed on the inner top of the expansion tube.

[0008] Preferably, one side of the inner filter assembly is provided with an elastic telescopic rod that extends movably into the interior of the outer expansion tube, and a push plate that is fixedly connected to the elastic telescopic rod is slidably connected to the bottom of the inner side of the outer expansion tube, and the push plate is in contact with the inner wall of the heat dissipation square tube.

[0009] Preferably, the inner filter assembly includes an outer frame that is slidably connected to the inner wall of the heat dissipation square tube, a baffle is fixedly connected to the side of the outer frame near the servo electric cylinder, and a sponge block is fixedly connected inside the outer frame.

[0010] Preferably, the outer filter assembly includes an outer frame two fixedly connected to the inner wall of the heat dissipation square tube, and a plurality of limiting plates fixedly connected to the side of the outer frame two away from the servo electric cylinder. The inner side of the outer frame two is provided with a sponge block two extending to the outside of it.

[0011] Preferably, the elastic telescopic rod includes an outer tube fixedly connected to the inner filter assembly, and a sliding rod with one end extending movably to the outside of the outer tube is provided inside the outer tube. The end of the sliding rod away from the outer tube is fixedly connected to the push plate, and a spring is fixedly connected between the sliding rod and the inner wall of the outer tube.

[0012] Preferably, one end of the outer tube movably passes through the sponge block, one end of the outer tube is fixedly connected to the baffle, and the push plate is slidably connected to the bottom of the exhaust fan.

[0013] Compared with the prior art, the present invention provides a grid-connected cabinet with the following advantages:

[0014] 1. Through the set double-layer filter components, the cabinet is continuously filled with air to form a high-pressure environment. The air pressure difference between the inside and outside of the grid-connected cabinet prevents the outside air from entering the cabinet through the gaps, which can reduce the possibility of excessive moisture inside the grid-connected cabinet, leading to circuit failure.

[0015] 2. The air entering the grid-connected cabinet is dried twice using inner and outer filter components, reducing the moisture content in the air. Compared to setting only one drying layer, this improves the drying effect on the air and ensures a dry environment inside the grid-connected cabinet.

[0016] 3. Through the servo electric cylinder, elastic telescopic rod and push plate, the water in the sponge block can be squeezed out, maintaining the sponge block's ability to dry the air, while promoting the air outside the grid-connected cabinet to pass through the two layers of sponge blocks and enter the grid-connected cabinet, maintaining the air pressure difference inside and outside the grid-connected cabinet. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 This is a schematic diagram of the grid-connected cabinet of this utility model;

[0019] Figure 2 This is a schematic diagram of the heat dissipation square tube and servo electric cylinder of this utility model;

[0020] Figure 3 This is a partial cross-sectional view of the heat dissipation square tube and servo electric cylinder of this utility model;

[0021] Figure 4 This is a schematic diagram of the servo electric cylinder and double-layer filter assembly of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the outer filter assembly of this utility model.

[0023] In the diagram: 1. Cabinet; 2. Cover plate; 3. Heat dissipation square tube; 4. Servo electric cylinder; 5. Double-layer filter assembly; 51. Inner filter assembly; 511. Outer frame one; 512. Baffle; 513. Sponge block one; 52. Outer filter assembly; 521. Outer frame two; 522. Limiting plate; 523. Sponge block two; 53. Exhaust fan; 6. Outer expansion tube; 7. Elastic telescopic rod; 8. Push plate. Detailed Implementation

[0024] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0025] Example

[0026] To prevent humid air from outside the grid-connected cabinet from entering through its gaps, thus increasing the possibility of damage to the internal circuitry due to high moisture content inside the cabinet, Figures 1-5In one embodiment of this utility model, a grid-connected cabinet is proposed, comprising a cabinet body 1. Multiple cover plates 2 are rotatably connected to one side of the cabinet body 1. A heat dissipation square tube 3, with one end extending movably to the outside, is provided inside the cabinet body 1. A servo electric cylinder 4, with its output end movably extending into the heat dissipation square tube 3, is provided on one side of the inner wall of the cabinet body 1. A double-layer filter assembly 5 is installed inside the heat dissipation square tube 3. The double-layer filter assembly 5 includes an inner layer filter assembly 51 fixedly connected to the output end of the servo electric cylinder 4, and an outer layer filter assembly 52 installed at the end of the heat dissipation square tube 3 away from the servo electric cylinder 4. An exhaust fan 53 is installed between the inner layer filter assembly 51 and the outer layer filter assembly 52. ​​In use, the exhaust fan 53 vents the cabinet body... 1. External air is drawn into the heat dissipation square tube 3 through the outer filter component 52. When the air passes through the outer filter component 52, some of the moisture in the air is absorbed by the outer filter component 52, thus drying the air once. The air entering the heat dissipation square tube 3 passes through the inner filter component 51 again before entering the grid-connected cabinet. When the air passes through the inner filter component 51, some of the moisture in the air is absorbed by the inner filter component 51, thus drying the air a second time. After the cabinet 1 is continuously filled with air, a high-pressure environment is formed. The air pressure difference between the inside and outside of the grid-connected cabinet prevents external air from entering the cabinet through gaps, which can reduce the possibility of excessive moisture inside the grid-connected cabinet causing circuit failure.

[0027] The air entering the grid-connected cabinet is dried twice by using the inner filter assembly 51 and the outer filter assembly 52, which reduces the moisture content of the air entering the grid-connected cabinet. Compared with setting only one drying layer, it improves the drying effect of moisture in the air and can ensure a dry environment inside the grid-connected cabinet.

[0028] Because the moisture content inside the sponge blocks increases after prolonged drying of the air, it becomes difficult to maintain the drying effect continuously. Furthermore, the two layers of sponge blocks significantly obstruct airflow, slowing the entry of external air into the grid-connected cabinet and resulting in a less pronounced pressure difference between the inside and outside. To address this issue, [further details are needed]. Figure 3 and Figure 4 One end of the heat dissipation square tube 3 near the outer filter assembly 52 is connected to an outer expansion tube 6. The cross-sectional area of ​​the outer expansion tube 6 is larger than that of the heat dissipation square tube 3. The inner bottom of the outer expansion tube 6 is on the same plane as the inner bottom of the heat dissipation square tube 3. An exhaust fan 53 is installed on the inner top of the outer expansion tube 6. One side of the inner filter assembly 51 is provided with an elastic telescopic rod 7 that extends movably into the outer expansion tube 6. The inner bottom of the outer expansion tube 6 is slidably connected to a push plate 8 that is fixedly connected to the elastic telescopic rod 7. The push plate 8 is in contact with the inner wall of the heat dissipation square tube 3. In use, the exhaust fan 53 continuously draws air from outside the cabinet 1 into the heat dissipation square tube 3 after passing through the outer filter assembly 52. ​​The servo electric cylinder 4 continuously extends and retracts, driving the inner filter assembly 51 to move. The specific process is as follows:

[0029] When the inner filter assembly 51 is pushed towards the outer filter assembly 52, the push plate 8 is simultaneously moved by the elastic telescopic rod 7 until the push plate 8 enters the heat dissipation square tube 3 from the outer expansion tube 6. At this point, the push plate 8 completely blocks the cross-section of the heat dissipation square tube 3. Then, the push plate 8 continues to move until it contacts the sponge block 523 of the outer filter assembly 52. ​​After being pushed, the push plate 8 squeezes the sponge block 523, squeezing out the water from it. During this process, the elastic telescopic rod 7 is continuously compressed and shortened, reducing the distance between the push plate 8 and the inner filter assembly 51, thus compressing the air between them. As the pressure increases, the compressed air eventually passes through the inner filter assembly 51 and then moves to the outside of the heat dissipation square tube 3 before entering the grid-connected cabinet. Next, the servo electric cylinder 4 drives the inner filter assembly 51, the elastic telescopic rod 7, and the push plate 8 to move to the starting point, repeating the above process. This continuously squeezes out the water in the second sponge block 523, while simultaneously promoting the air inside the heat dissipation square tube 3 to pass through the first sponge block 513 and enter the grid-connected cabinet. This process squeezes out the water in the sponge blocks, maintaining their ability to dry the air. At the same time, it promotes the air outside the grid-connected cabinet to pass through the two layers of sponge blocks and enter the grid-connected cabinet, maintaining the air pressure difference between the inside and outside of the grid-connected cabinet.

[0030] To dry the air multiple times, refer to Figure 4 and Figure 5 The inner filter assembly 51 includes an outer frame 511 that is slidably connected to the inner wall of the heat dissipation square tube 3. A baffle 512 is fixedly connected to the side of the outer frame 511 near the servo electric cylinder 4. A sponge block 513 is fixedly connected inside the outer frame 511. The outer filter assembly 52 includes an outer frame 521 that is fixedly connected to the inner wall of the heat dissipation square tube 3. Multiple limiting plates 522 are fixedly connected to the side of the outer frame 521 away from the servo electric cylinder 4. A sponge block 523 with one end extending to the outside is provided inside the outer frame 521. During use, the air is sucked away from the moisture as it passes through the sponge block 513 and the sponge block 523, ensuring the dryness of the air entering the grid-connected cabinet.

[0031] In order to force the air inside the heat dissipation square tube 3 through the sponge block 513, refer to Figure 3 The elastic telescopic rod 7 includes an outer tube fixedly connected to the inner filter assembly 51. Inside the outer tube is a sliding rod with one end extending movably to the outside. The end of the sliding rod away from the outer tube is fixedly connected to the push plate 8. A spring is fixedly connected between the sliding rod and the inner wall of the outer tube. One end of the outer tube movably passes through the sponge block 513. One end of the outer tube is fixedly connected to the baffle 512. The push plate 8 is slidably connected to the bottom of the exhaust fan 53. In use, the structure of the elastic telescopic rod allows the inner filter assembly 51 to gradually approach the push plate 8 after being squeezed. This compresses the air between the inner filter assembly 51 and the push plate 8, promoting the air between the inner filter assembly 51 and the push plate 8 to pass through the sponge block 513.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A grid-connected cabinet, comprising a cabinet body (1), wherein a plurality of cover plates (2) are rotatably connected to one side of the cabinet body (1), characterized in that: The cabinet (1) has a heat dissipation square tube (3) with one end extending to the outside. The inner wall of the cabinet (1) has a servo electric cylinder (4) with the output end extending to the inside of the heat dissipation square tube (3). A double-layer filter assembly (5) is installed inside the heat dissipation square tube (3). The dual-layer filter assembly (5) includes an inner filter assembly (51) fixedly connected to the output end of the servo electric cylinder (4), and an outer filter assembly (52) installed on the end of the heat dissipation square tube (3) away from the servo electric cylinder (4). An exhaust fan (53) is installed between the inner filter assembly (51) and the outer filter assembly (52).

2. The grid-connected cabinet according to claim 1, characterized in that: The heat dissipation square tube (3) is connected to an outer expansion tube (6) at one end near the outer filter assembly (52). The cross-sectional area of ​​the outer expansion tube (6) is larger than that of the heat dissipation square tube (3). The inner bottom of the outer expansion tube (6) is on the same plane as the inner bottom of the heat dissipation square tube (3). The exhaust fan (53) is installed on the inner top of the outer expansion tube (6).

3. A grid-connected cabinet according to claim 2, characterized in that: The inner filter assembly (51) has an elastic telescopic rod (7) with one end extending into the inner part of the outer expansion tube (6) on one side. The bottom inner side of the outer expansion tube (6) is slidably connected to a push plate (8) which is fixedly connected to the elastic telescopic rod (7). The push plate (8) is in contact with the inner wall of the heat dissipation square tube (3).

4. A grid-connected cabinet according to claim 3, characterized in that: The inner filter assembly (51) includes an outer frame (511) that is slidably connected to the inner wall of the heat dissipation square tube (3). A baffle (512) is fixedly connected to the side of the outer frame (511) near the servo electric cylinder (4). A sponge block (513) is fixedly connected inside the outer frame (511).

5. A grid-connected cabinet according to claim 1, characterized in that: The outer filter assembly (52) includes an outer frame two (521) fixedly connected to the inner wall of the heat dissipation square tube (3). Multiple limiting plates (522) are fixedly connected to the side of the outer frame two (521) away from the servo electric cylinder (4). A sponge block two (523) with one end extending to the outside is provided inside the outer frame two (521).

6. A grid-connected cabinet according to claim 4, characterized in that: The elastic telescopic rod (7) includes an outer tube fixedly connected to the inner filter assembly (51). Inside the outer tube is a sliding rod with one end extending movably to the outside. The end of the sliding rod away from the outer tube is fixedly connected to the push plate (8). A spring is fixedly connected between the sliding rod and the inner wall of the outer tube.

7. A grid-connected cabinet according to claim 6, characterized in that: One end of the outer tube movably passes through the sponge block (513), and one end of the outer tube is fixedly connected to the baffle (512). The push plate (8) is slidably connected to the bottom of the exhaust fan (53).

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