Subway operation electrical equipment cabinet

Abstract

This utility model relates to the field of subway operation equipment technology, and more particularly to a subway operation electrical equipment cabinet, including a cabinet body. A U-shaped slider is fixedly connected to the outer wall of the cabinet body, and a protective cover is slidably connected to the slider. Ventilation mesh is provided on both sides of the outer wall of the protective cover. A ventilated mounting box is fixedly installed on the inner wall of the protective cover. An installation cavity is provided inside the ventilated mounting box, and a moisture-absorbing desiccant is placed in the installation cavity. A ventilated cover is hinged and rotatably connected to the opening of the installation cavity. This utility model, by setting a ventilated mounting box containing a moisture-absorbing desiccant on the inner wall of the protective cover, effectively absorbs moisture from the outside air before it enters the cabinet body, preventing moisture from directly invading the cabinet body and preventing condensation from forming on the surface of electrical components. This greatly reduces the risk of short circuits, leakage, and other faults caused by condensation, providing a dry and stable operating environment for subway operation electrical equipment.

Description

Technical Field

[0001] This utility model relates to the field of subway operation equipment technology, and in particular to a subway operation electrical equipment cabinet. Background Technology

[0002] With the rapid development of urban rail transit, subways have become an important part of modern urban transportation. However, the unique operating environment of subways poses a severe challenge to the stability and reliability of electrical equipment. Because subway lines are mostly laid underground, the relatively enclosed space leads to poor air circulation. Combined with factors such as groundwater infiltration, moisture generated by train operation, and moisture carried by passengers, the internal environment of subways remains consistently high in humidity. According to relevant statistics, the relative humidity inside subway tunnels often remains between 70% and 90%, and in some areas even exceeds 95%. This humid environment easily causes electrical components and wiring in the subway's operating electrical equipment cabinets to become damp.

[0003] Existing subway operation equipment, such as the subway operation electrical equipment cabinet disclosed in publication number CN221688032U, can greatly dissipate the heat of the components inside the cabinet by setting up at least one heat sink and heat dissipation holes that are evenly arranged to cooperate with the component chambers. However, the direct exchange with the outside air makes it easy for moisture to directly enter the cabinet, and condensation is easily formed on the surface of electrical components, causing faults such as short circuits and leakage. This not only affects the normal operation of the subway, but may also bring serious safety hazards. Utility Model Content

[0004] The purpose of this utility model is to solve the shortcomings of existing methods that directly exchange air with the outside environment, which easily allow moisture to directly enter the cabinet and cause condensation on the surface of electrical components, leading to faults such as short circuits and leakage. This not only affects the normal operation of the subway but may also bring serious safety hazards. Therefore, a subway operation electrical equipment cabinet is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A subway operation electrical equipment cabinet includes a cabinet body. A U-shaped slider is fixedly connected to the outer wall of the cabinet body. A protective cover is slidably connected to the slider. Ventilation mesh is provided on both sides of the outer wall of the protective cover. A ventilated mounting box is fixedly installed on the inner wall of the protective cover. An installation cavity is provided inside the ventilated mounting box. A moisture-absorbing desiccant is placed in the installation cavity. A vent cover is rotatably connected to the opening of the installation cavity via a hinge.

[0007] Preferably, a heat dissipation mesh is provided on the back side of the outer wall of the cabinet, and the heat dissipation mesh is located between the ventilated mounting boxes.

[0008] Preferably, the inner wall of the protective cover is provided with an installation groove, the outer wall of the protective cover is provided with an adapter groove, and both ends of the slider are fixedly connected with installation blocks that are compatible with the adapter groove.

[0009] Preferably, a stop block is fixedly connected to the inner wall of the protective cover near the ventilated mounting box, and the stop block is disposed on the upper and lower sides of the ventilated mounting box.

[0010] Preferably, the outer walls on both sides of the vent cover are provided with sliding holes, a small spring is fixedly installed in the sliding hole, a limiting boss is slidably connected in the sliding hole, the small spring abuts against the outer wall of the limiting boss, and the inner wall of the mounting cavity is provided with a groove that matches the limiting boss.

[0011] Preferably, the bottom of the cabinet is fixedly connected to four fixed posts, the outer wall of each fixed post is slidably connected to a base plate, the outer wall of each fixed post is fitted with a large spring, and the top of the base plate is provided with a through hole, and the fixed post is slidably engaged with the through hole.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. When in use, this utility model can be installed in a breathable installation box containing a moisture-absorbing desiccant on the inner wall of the protective cover. Before the outside air enters the cabinet, the moisture will be effectively absorbed by the desiccant, preventing moisture from directly entering the cabinet and preventing condensation from forming on the surface of electrical components. This greatly reduces the risk of short circuits, leakage and other faults caused by condensation, and provides a dry and stable operating environment for subway operating electrical equipment.

[0014] 2. When in use, the heat dissipation mesh opened on the back side of the outer wall of the cabinet is located between the ventilated mounting boxes. While the desiccant plays a role in moisture prevention, the heat dissipation mesh can ensure that the heat inside the cabinet is effectively dissipated, so that the electrical equipment can operate within the normal temperature range. This avoids the impact of heat accumulation on equipment performance and service life, and achieves a balance between moisture prevention and heat dissipation.

[0015] 3. In use, the protective cover is connected to the cabinet via a slider. The mounting blocks at both ends of the slider are matched with the adapter grooves of the protective cover, making the installation and disassembly of the protective cover simple and convenient. This facilitates the replacement of the desiccant in the ventilated mounting box and the maintenance of the equipment inside the cabinet. The vent cover is secured to the mounting cavity via a small spring and a limiting boss, ensuring stable installation and facilitating the opening of the vent cover to replace the desiccant, thus improving the efficiency of equipment maintenance.

[0016] 4. When this utility model is in use, the fixed column at the bottom of the cabinet is connected to the base plate by a large spring. When the equipment is subjected to external vibration, the large spring can play a role in buffering and shock absorption, reducing the impact of vibration on the electrical components inside the cabinet, enhancing the overall structural stability of the electrical equipment cabinet, and ensuring the reliable operation of subway operating electrical equipment in complex operating environments. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a subway operation electrical equipment cabinet proposed in this utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of a subway operation electrical equipment cabinet proposed in this utility model;

[0019] Figure 3 A three-dimensional structural diagram of a protective cover for a subway operation electrical equipment cabinet proposed in this utility model;

[0020] Figure 4 This is a cross-sectional view of a protective cover for a subway operation electrical equipment cabinet proposed in this utility model;

[0021] Figure 5 A three-dimensional structural diagram of a ventilation cover for a subway operation electrical equipment cabinet proposed in this utility model;

[0022] Figure 6 This is an enlarged view of section A of the structure of a subway operation electrical equipment cabinet proposed in this utility model;

[0023] Figure 7 This is an enlarged view of section B of the structure of a subway operation electrical equipment cabinet proposed in this utility model.

[0024] In the diagram: 1. Cabinet; 2. Slider; 3. Protective cover; 4. Through hole; 5. Ventilation mesh; 6. Ventilation mounting box; 7. Mounting cavity; 8. Moisture-absorbing desiccant; 9. Ventilation cover; 10. Heat dissipation mesh; 11. Mounting groove; 12. Adaptor groove; 13. Mounting block; 14. Stop block; 15. Sliding hole; 16. Small spring; 17. Limiting boss; 18. Fixing post; 19. Base plate; 20. Large spring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] Reference Figures 1-7A subway operation electrical equipment cabinet includes a cabinet body 1. A U-shaped slider 2 is fixedly connected to the outer wall of the cabinet body 1. A protective cover 3 is slidably connected to the slider 2. An installation groove 11 is opened on the inner wall of the protective cover 3. An adapter groove 12 is opened on the outer wall of the protective cover 3. Both ends of the slider 2 are fixedly connected to an installation block 13 that is compatible with the adapter groove 12.

[0027] With the installation slot 11 and the adapter slot 12, the protective cover 3 can be inserted along the adapter slot 12. After being restricted by the installation slot 11, the protective cover 3 fits tightly with the cabinet 1 and will not vibrate. The installation block 13 fits tightly with the adapter slot 12.

[0028] The breathable mesh 5 is installed in the mounting groove 11 to prevent outside humid air from entering the cabinet 1 from other positions. The connection between the protective cover 3 and the cabinet 1 is equipped with a sealing gasket to prevent outside air from entering.

[0029] Both sides of the outer wall of the protective cover 3 are provided with ventilation mesh 5. A ventilation mounting box 6 is fixedly installed on the inner wall of the protective cover 3. A block 14 is fixedly connected to the inner wall of the protective cover 3 on the side close to the ventilation mounting box 6. The block 14 is set on the upper and lower sides of the ventilation mounting box 6.

[0030] The length of the ventilated mounting box 6 is the same as the distance between the upper and lower blocks 14. The contact surface between the ventilated mounting box 6 and the blocks 14 is covered with a sealing gasket to prevent humid air from entering the cabinet 1 through the gaps.

[0031] The ventilated mounting box 6 has a mounting cavity 7, in which a moisture-absorbing desiccant 8 is placed. The opening of the mounting cavity 7 is hinged and rotatably connected to a ventilated cover 9. The outer walls of both sides of the ventilated cover 9 have sliding holes 15. Small springs 16 are fixedly installed in the sliding holes 15. A limiting boss 17 is slidably connected in the sliding holes 15. The small springs 16 abut against the outer wall of the limiting boss 17. The inner wall of the mounting cavity 7 has a slot that matches the limiting boss 17.

[0032] The sliding holes 15 on both outer walls, the built-in small springs 16, and the slidingly connected limiting bosses 17 together constitute a reliable locking mechanism. When the vent cover 9 is closed, the limiting bosses 17 are engaged in the slots on the inner wall of the mounting cavity 7 under the elastic force of the small springs 16, ensuring that the vent cover 9 is tightly closed and preventing the desiccant 8 from spilling out; when opening, simply pull the vent cover 9, and the limiting bosses 17 will disengage from the slots under the pulling force, making it easy to open the vent cover 9 for replacement or inspection of the desiccant 8.

[0033] A heat dissipation mesh 10 is provided on the back side of the outer wall of the cabinet 1, and the heat dissipation mesh 10 is located between the ventilated mounting boxes 6.

[0034] The heat dissipation mesh 10 on the back of the cabinet 1 adopts an interlaced louver layout, forming a front-to-back convection channel with the ventilated mounting box 6, which can greatly improve the air exchange efficiency and effectively increase the heat dissipation area.

[0035] The bottom of the cabinet 1 is fixedly connected with four fixed posts 18. The outer wall of the fixed posts 18 is slidably connected with a base plate 19. A large spring 20 is sleeved on the outer wall of the fixed posts 18. A through hole 4 is opened on the top of the base plate 19. The fixed posts 18 and the through hole 4 are slidably engaged.

[0036] The cooperation between the fixed column 18 and the large spring 20 lays the foundation for the elastic buffer structure between the cabinet 1 and the base plate 19, further improving the shock resistance of the equipment cabinet; the bottom of the base plate 19 is equipped with an anti-slip rubber pad to increase the friction with the ground, effectively preventing the equipment cabinet from sliding on the ground, and at the same time, it can also play a certain role in shock absorption and noise reduction, creating a stable environment for equipment operation.

[0037] Working principle:

[0038] First, align the protective cover 3 with the mounting block 13 on the slider 2 via the adapter groove 12, and push it in along the U-shaped track to ensure a tight fit between the mounting groove 11 and the cabinet 1. The sealing gasket ensures moisture protection at the connection point, while the breathable mesh 5 guides airflow in one direction. Then, fill the mounting cavity 7 of the breathable mounting box 6 with the desiccant 8, close the breathable cover 9, and the limiting boss 17 automatically engages with the slot under spring action. The heat dissipation mesh 10 on the back of the cabinet 1 and the breathable mounting box 6 form a convection channel, which, combined with the sealing design of the baffle 14, achieves both efficient heat dissipation and prevents moisture intrusion.

[0039] When the equipment is running, the buffer structure consisting of the bottom fixed column 18 and the large spring 20 absorbs subway vibrations, and the anti-slip rubber pad on the base plate 19 prevents displacement. Moist air enters the mounting cavity 7 through the vent mesh 5 and is absorbed by the desiccant; the dry airflow then exits through the heat dissipation mesh 10, forming a circulation. For maintenance, pulling down the vent cover 9 disengages the limiting boss 17 from the slot, allowing for desiccant replacement; the overall protective cover 3 can slide out along the slider 2 for easy access to the equipment inside the cabinet. This design combines moisture protection, heat dissipation, and vibration resistance, ensuring stable operation of electrical equipment in a humid and vibrating environment.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A subway operation electrical equipment cabinet, comprising a cabinet body (1), characterized in that, The outer wall of the cabinet (1) is fixedly connected to a U-shaped slider (2), and a protective cover (3) is slidably connected to the slider (2). Both sides of the outer wall of the protective cover (3) are provided with breathable mesh (5). A breathable mounting box (6) is fixedly installed on the inner wall of the protective cover (3). An installation cavity (7) is provided inside the breathable mounting box (6). A moisture-absorbing desiccant (8) is placed in the installation cavity (7). A breathable cover (9) is rotatably connected to the opening of the installation cavity (7) by a hinge. The outer walls of the ventilation cover (9) are provided with sliding holes (15), and small springs (16) are fixedly installed in the sliding holes (15). A limiting boss (17) is slidably connected in the sliding holes (15). The small springs (16) abut against the outer wall of the limiting boss (17). The inner wall of the mounting cavity (7) is provided with a slot that matches the limiting boss (17).

2. The subway operation electrical equipment cabinet according to claim 1, characterized in that, The cabinet (1) has a heat dissipation mesh (10) on the back side of its outer wall, and the heat dissipation mesh (10) is located between the ventilated mounting boxes (6).

3. A subway operation electrical equipment cabinet according to claim 1, characterized in that, The inner wall of the protective cover (3) is provided with an installation groove (11), and the outer wall of the protective cover (3) is provided with an adapter groove (12). Both ends of the slider (2) are fixedly connected with an installation block (13) that is compatible with the adapter groove (12).

4. A subway operation electrical equipment cabinet according to claim 1, characterized in that, The protective cover (3) has a stop block (14) fixedly connected to the inner wall of the side near the ventilated mounting box (6), and the stop block (14) is located on the upper and lower sides of the ventilated mounting box (6).

5. A subway operation electrical equipment cabinet according to claim 1, characterized in that, The bottom of the cabinet (1) is fixedly connected to four fixed columns (18), and the outer wall of the fixed column (18) is slidably connected to a base plate (19). A large spring (20) is sleeved on the outer wall of the fixed column (18), and a through hole (4) is opened on the top of the base plate (19). The fixed column (18) and the through hole (4) are slidably engaged.

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