Metro tunnel centralized distribution box

Abstract

This utility model proposes a centralized power distribution box for subway tunnels, comprising: a box body and a fixing assembly. A fan is installed on the box body; a window is opened on the box body, and an air inlet assembly is rotatably connected inside the window. The outer wall of the air inlet assembly fits against the inner wall of the window. The air inlet assembly includes two symmetrically arranged air guide chambers, each with a fan-shaped cross-section. A first filter screen is provided on the arc-shaped surface of each air guide chamber, and an opening is provided on each air guide chamber located inside the box body. A limiting plate is provided on each air guide chamber, abutting against the inner wall of the box body. The fixing assembly is mounted on the box body. This utility model's centralized power distribution box for subway tunnels can utilize the piston-like wind effect during subway operation to further accelerate the airflow inside the power distribution box, thereby ensuring the electrical performance inside the power distribution box and reducing the failure rate.

Description

Technical Field

[0001] This utility model relates to the field of power distribution box technology, and in particular to a centralized power distribution box for subway tunnels. Background Technology

[0002] Subway tunnels, as the underground "arteries" of a city, rely on a massive and complex electrical support system for their safe and efficient operation. The stable operation of the distribution boxes, acting as the "nerve nodes" of this power system, is crucial. However, subway tunnels are natural "heat traps," exposing the distribution boxes to multiple heat sources.

[0003] In related technologies, heat dissipation grilles are typically installed on the distribution box, or cooling fans are installed inside to accelerate the airflow inside the distribution box. However, when the ambient temperature is high, this method of accelerating the airflow can no longer meet the heat dissipation needs of the distribution box, resulting in a decline in the electrical performance inside the distribution box and frequent failures. Utility Model Content

[0004] This utility model aims to at least partially solve one of the technical problems in the above-mentioned technologies.

[0005] Therefore, one objective of this utility model is to propose a centralized power distribution box for subway tunnels, which can utilize the piston wind effect during subway operation to further accelerate the airflow inside the power distribution box, thereby ensuring the electrical performance inside the power distribution box and reducing the failure rate.

[0006] To achieve the above objectives, the first aspect of this utility model proposes a centralized power distribution box for subway tunnels, comprising: a box body and a fixing assembly, wherein a fan is installed on the box body; a window is provided on the box body, and an air inlet assembly is rotatably connected inside the window, the outer wall of the air inlet assembly is fitted against the inner wall of the window, the air inlet assembly includes two symmetrically arranged air guide chambers, wherein the cross-section of the air guide chambers is arranged in a fan shape, the arc surface of the air guide chambers is provided with a first filter screen, the air guide chambers are provided with openings, the openings are located inside the box body; a limiting plate is provided on the air guide chambers, the limiting plate abuts against the inner wall of the box body; the fixing assembly is disposed on the box body.

[0007] In addition, the centralized power distribution box for subway tunnels proposed in this utility model may also have the following additional technical features: Specifically, the fixing component includes a connecting plate, a rod, and a fixing plate. The connecting plate is connected to the housing via a fastener. One end of the rod is connected to the connecting plate, and the other end of the rod is connected to the fixing plate. The length of the rod is greater than the width of the air guide chamber.

[0008] Specifically, the first filter screen has a recessed portion.

[0009] Specifically, telescopic rods are provided at the four corners of the box.

[0010] Specifically, the fan's air outlet is equipped with a second filter.

[0011] Specifically, two air guide plates are symmetrically arranged on both sides of the box, and the cross-section of the air guide plates is arranged in an arc shape.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The centralized power distribution box for subway tunnels of the present invention can take advantage of the piston wind effect during subway operation and introduce piston wind into the power distribution box through the air inlet door assembly, thereby further accelerating the air flow rate inside the power distribution box, thus ensuring the electrical performance inside the power distribution box and reducing the failure rate.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which: Figure 1 This is a schematic diagram of a centralized power distribution box structure for a subway tunnel according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the air inlet door assembly of a centralized power distribution box in a subway tunnel according to an embodiment of the present invention.

[0015] Reference numerals: 1. Housing; 11. Window; 2. Fan; 21. Second filter; 3. Air inlet assembly; 31. Air guide chamber; 32. First filter; 33. Opening; 34. Limiting plate; 35. Recess; 4. Fixing assembly; 41. Connecting plate; 42. Rod; 43. Fixing plate; 51. Telescopic rod; 61. Air guide plate. Detailed Implementation

[0016] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0017] The following describes an embodiment of the subway tunnel centralized power distribution box with reference to the accompanying drawings.

[0018] like Figures 1-2 As shown, the centralized power distribution box for subway tunnels in this embodiment of the present invention may include: a box body 1 and a fixing component 4.

[0019] Fan 2 is installed on the housing 1.

[0020] It should be noted that the fan 2 described in this embodiment can be powered by electrical components inside the distribution box, and the fan 2 can work continuously without being affected by the air inlet assembly 3.

[0021] The housing 1 has a window 11, and the inside of the window 11 is rotatably connected to an air inlet door assembly 3.

[0022] It should be noted that the window 11 described in this embodiment is rotatably connected to the air inlet door assembly 3 via a rotating shaft.

[0023] The outer wall of the air inlet damper assembly 3 is fitted to the inner wall of the window 11. The air inlet damper assembly 3 includes two symmetrically arranged air guide chambers 31.

[0024] The cross-section of the air guide chamber 31 is arranged in a fan shape. The arc surface of the air guide chamber 31 is provided with a first filter screen 32. The air guide chamber 31 is provided with an opening 33, which is located inside the box body 1. The air guide chamber 31 is provided with a limiting plate 34, which abuts against the inner wall of the box body 1. The fixing component 4 is provided on the box body 1.

[0025] Specifically, relevant technicians installed the enclosure 1 on the wall inside the subway tunnel using the fixing component 4, and configured electrical equipment inside the enclosure 1 according to technical requirements.

[0026] During the use of this distribution box, the subway travels back and forth in the tunnel. The piston airflow generated in the tunnel is relatively fast and sweeps across the surface of box 1. When the subway runs in one direction, refer to... Figure 1 The piston air can pass through the first filter 32 on a guide chamber 31 and enter the interior of the housing 1 through the opening 33.

[0027] When the subway runs in another direction, the piston wind drives the air inlet door assembly 3 to rotate. The air inlet door assembly 3 adjusts its windward direction autonomously. As the subway continues to move, the piston wind can continuously enter the interior of the box 1.

[0028] After the piston air enters the enclosure 1, it further accelerates the airflow inside the enclosure 1, thereby ensuring the electrical performance inside the distribution box and reducing the failure rate. At the same time, under the guidance of the fan 2, the air that carries away the heat inside the enclosure 1 is discharged through the fan 2.

[0029] In one embodiment of this utility model, such as Figure 1 As shown, the fixing component 4 includes a connecting plate 41, a rod 42, and a fixing plate 43.

[0030] The connecting plate 41 is connected to the housing 1 by a fastener, one end of the rod 42 is connected to the connecting plate 41, and the other end of the rod 42 is connected to the fixing plate 43. The length of the rod 42 is greater than the width of the air guide chamber 31.

[0031] Understandably, the length of the rod 42 is greater than the width of the air guide chamber 31 to ensure sufficient rotation space for the air inlet valve assembly 3.

[0032] It should be noted that the fasteners described in this embodiment can be bolts, expansion screws, etc., and are not specifically limited here.

[0033] In one embodiment of this utility model, such as Figure 2 As shown, the first filter screen 32 has a recessed portion 35.

[0034] It is understandable that setting a recess 35 on the first filter 32 can increase the windward surface of the first filter 32, ensuring that more piston air enters the interior of the housing 1 during subway operation.

[0035] In one embodiment of this utility model, such as Figure 1 As shown, telescopic rods 51 are provided at the four corners of the box 1.

[0036] It should be noted that the telescopic rod 51 described in this embodiment has a self-locking mechanism, the specific connection structure and working principle of which have been disclosed in the prior art, so they will not be described in detail here.

[0037] Understandably, one end of the telescopic rod 51 abuts against the inner wall of the tunnel, which can provide support for the box 1, thereby ensuring the stability of the distribution box during use.

[0038] In one embodiment of this utility model, such as Figure 1 As shown, the air outlet of fan 2 is equipped with a second filter 21.

[0039] It is understandable that installing a second filter 21 at the air outlet of fan 2 can prevent foreign objects from entering the interior of the housing 1, thereby ensuring the cleanliness of the interior environment of the housing 1.

[0040] In one embodiment of this utility model, such as Figure 1 As shown, two air guide plates 61 are symmetrically arranged on both sides of the box 1, and the cross-section of the air guide plates 61 is arranged in an arc shape.

[0041] It is understandable that air guide plates 61 are installed on both sides of the housing 1. On the one hand, this can prevent the piston wind from acting directly on the housing 1 and reduce the impact force. On the other hand, it can guide some of the piston wind to the air inlet valve assembly 3 to ensure that the piston wind flows into the interior of the housing 1.

[0042] In summary, the centralized power distribution box for subway tunnels of this invention can utilize the piston wind effect during subway operation to guide the piston wind into the power distribution box through the air inlet door assembly, thereby further accelerating the airflow inside the power distribution box, thus ensuring the electrical performance inside the power distribution box and reducing the failure rate.

[0043] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0044] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0045] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A centralized power distribution box for subway tunnels, characterized in that, include: The housing (1) and the fixing components (4), wherein, A fan (2) is installed on the housing (1); The housing (1) has a window (11) and an air inlet assembly (3) is rotatably connected inside the window (11). The outer wall of the air inlet assembly (3) is fitted against the inner wall of the window (11). The air inlet assembly (3) includes two symmetrically arranged air guide chambers (31). The cross-section of the air guide chamber (31) is arranged in a fan shape. The arc surface of the air guide chamber (31) is provided with a first filter screen (32). The air guide chamber (31) is provided with an opening (33), which is located inside the box (1). The air guide chamber (31) is provided with a limiting plate (34), and the limiting plate (34) abuts against the inner wall of the box (1); The fixing component (4) is disposed on the housing (1).

2. The centralized power distribution box for subway tunnels according to claim 1, characterized in that, The fixing component (4) includes a connecting plate (41), a rod (42), and a fixing plate (43), wherein, The connecting plate (41) is connected to the box (1) by a fastener. One end of the rod (42) is connected to the connecting plate (41), and the other end of the rod (42) is connected to the fixing plate (43). The length of the rod (42) is greater than the width of the air guide chamber (31).

3. The centralized power distribution box for subway tunnels according to claim 1, characterized in that, The first filter screen (32) has a recessed portion (35).

4. The centralized power distribution box for subway tunnels according to claim 1, characterized in that, Telescopic rods (51) are provided at the four corners of the box (1).

5. The centralized power distribution box for subway tunnels according to claim 1, characterized in that, The air outlet of the fan (2) is provided with a second filter (21).

6. The centralized power distribution box for subway tunnels according to claim 1, characterized in that, The box (1) has two symmetrical air guide plates (61) on both sides, and the cross-section of the air guide plates (61) is arranged in an arc shape.

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