Cable distribution box for railway power

Abstract

The utility model relates to a cable distribution box for railway power, which comprises a box body, a junction box and a slide rail, the box body is internally provided with a cavity for mounting components, the slide rail is arranged in the box body, the junction box is arranged in the box body in a sliding manner, and the slide rail is in sliding fit with the junction box; heat dissipation bins are oppositely arranged on the box body, gas flowing cavities are formed in the heat dissipation bins, filter screens are arranged on the heat dissipation bins, a plurality of gas inlet holes located above the filter screens are formed between the gas flowing cavities and the cavities, and the gas inlet holes are used for guiding gas to flow into the cavities. According to the distribution box, air can smoothly flow into the box body through the sliding rails, the cavity, the heat dissipation bin, the air flowing cavity, the filter screen, the air inlet holes and the water storage cavity, the air flowing efficiency is improved, the efficient heat dissipation effect is achieved, meanwhile, rainwater is prevented from entering the box body, and the waterproof performance of the distribution box is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of cable installation, and in particular to a cable junction box for railway power. Background Art

[0002] In the railway power system, the cable distribution box is the terminal device of the cable line, and its stability and reliability are crucial to the operation of the entire system. However, the existing cable distribution box has some shortcomings in heat dissipation design.

[0003] At present, some cable junction boxes are equipped with downward-opening air holes on the shell to guide external air into the box for heat dissipation. This method achieves the purpose of heat dissipation to a certain extent, but the actual effect is not ideal. Since the air holes open downward, the air flow is restricted by gravity, resulting in poor air flow and low heat dissipation efficiency. Especially in high temperature environments, the heat accumulation inside the junction box is more serious, which can easily affect the normal operation of the equipment.

[0004] In addition, this heat dissipation design has another problem, which is the risk of rain splashing. In rainy or humid environments, rainwater may splash into the inside of the junction box through the air holes, posing a potential safety hazard to electrical components. Long-term humid environments may also cause corrosion and damage to electrical components, further affecting the service life and performance of the junction box.

[0005] In view of the above problems, a cable junction box for railway power is now designed. Utility Model Content

[0006] An embodiment of the present application provides a cable distribution box for railway power to solve the problem that some cable distribution boxes in the related art are provided with downwardly opening air holes on the shell, and the gas circulation is restricted by gravity, resulting in poor air flow, low heat dissipation efficiency, and rainwater splashing into the box.

[0007] In a first aspect, a cable junction box for railway power is provided, comprising: a box body, a junction box and a slide rail, wherein the box body has a chamber for installing components, the slide rail is arranged inside the box body, the junction box is slidably arranged inside the box body, and the slide rail is slidably matched with the junction box;

[0008] A heat dissipation chamber is arranged on the box body, and a gas flow cavity is arranged inside the heat dissipation chamber. A filter is arranged on the heat dissipation chamber, and a plurality of air inlet holes located above the filter are opened between the gas flow cavity and the chamber, and the air inlet holes are used to guide the gas to flow into the chamber;

[0009] A water storage cavity is provided inside the box body, the bottom of the gas flow cavity is communicated with the water storage cavity, and the water storage cavity is used to collect rainwater.

[0010] In some embodiments, a mounting plate is provided on the junction box, and the mounting plate is connected to the bottom of the box body by bolts.

[0011] In some embodiments, a guide plate is disposed inside the gas flow cavity, the guide plate is disposed opposite to the air inlet hole, and a concave surface is formed on a side of the guide plate close to the air inlet hole.

[0012] In some embodiments, a plurality of water baffles are disposed inside the gas flow cavity, and the plurality of water baffles are symmetrically disposed with respect to the filter screen, and the water baffles are inclined downwards close to a side of the filter screen.

[0013] In some embodiments, a control mechanism is further included, wherein the control mechanism includes an electromagnetic valve and a group of water level sensors, wherein the water level sensor is arranged at the bottom of the gas flow chamber, and the electromagnetic valve is arranged on the water storage chamber.

[0014] In some embodiments, the water storage cavity is located at the bottom of the chamber, and a temperature sensor is disposed inside the water storage cavity to monitor the water temperature inside the water storage cavity.

[0015] In some embodiments, a top cover is provided on the box body, and a sealed door is hinged on the front side of the box body.

[0016] The embodiment of the present application provides a cable junction box for railway power. Through the slide rail, chamber, heat dissipation chamber, gas flow chamber, filter, air inlet, and water storage chamber, gas can flow smoothly into the box body, thereby improving the gas flow efficiency and avoiding heat accumulation inside the junction box. In addition, the box body can be water-cooled by collected rainwater, thereby achieving an efficient heat dissipation effect. At the same time, it also avoids rainwater from entering the box body, ensuring the waterproof performance of the junction box, and providing reliable guarantee for the stable operation of the railway power system.

[0017] At the same time, the junction box can slide inside the box, so it is convenient to take the junction box out of the box, which is conducive to more convenient connection, disconnection and maintenance of the cables. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 A schematic diagram of a three-dimensional structure provided in an embodiment of the present application;

[0020] Figure 2 A front cross-sectional view provided for an embodiment of the present application;

[0021] Figure 3 This is a front cross-sectional view of the heat dissipation bin provided in an embodiment of the present application.

[0022] In the figure: 1. Box body; 2. Junction box; 3. Slide rail; 4. Chamber; 5. Heat dissipation chamber; 6. Gas flow chamber; 7. Filter; 8. Air inlet; 9. Water storage chamber; 10. Mounting plate; 11. Guide plate; 12. Concave surface; 13. Water baffle; 14. Control mechanism; 141. Water level sensor; 142. Solenoid valve; 15. Temperature sensor. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0024] An embodiment of the present application provides a cable junction box for railway power, which can solve the problem in the related art that some cable junction boxes are provided with downwardly opening air holes on the shell, and the gas circulation is restricted by gravity, resulting in poor airflow, low heat dissipation efficiency, and rainwater splashing into the box.

[0025] See also Figure 1-Figure 3 A cable junction box for railway power comprises: a box body 1, a junction box 2 and a slide rail 3, wherein the box body 1 has a chamber 4 for installing components, the slide rail 3 is arranged inside the box body 1, the junction box 2 is slidably arranged inside the box body 1, and the slide rail 3 and the junction box 2 are slidably matched; a heat dissipation bin 5 is relatively arranged on the box body 1, and a gas flow cavity 6 is arranged inside the heat dissipation bin 5, and a filter screen 7 is arranged on the heat dissipation bin 5, and a plurality of air inlet holes 8 located above the filter screen 7 are opened between the gas flow cavity 6 and the chamber 4, and the air inlet holes 8 are used to guide the gas to flow into the chamber 4; a water storage cavity 9 is opened inside the box body 1, and the bottom of the gas flow cavity 6 is connected to the water storage cavity 9, and the water storage cavity 9 is used to collect rainwater.

[0026] The junction box 2 slides inside the box body 1 via the slide rails 3. This design makes the connection, disconnection and maintenance of the cables more convenient.

[0027] The heat dissipation chamber 5 is located outside or on the top of the box body 1, and a gas flow chamber 6 is formed inside. The filter 7 is installed above or at the entrance of the heat dissipation chamber 5. Its main function is to block large particles of impurities and dust from the outside and ensure that the air entering the gas flow chamber 6 is clean. The air inlet 8 is located above the filter 7 and connects the gas flow chamber 6 and the chamber 4. Its function is to introduce the air cleaned by the filter into the chamber 4 to provide heat dissipation for the internal electrical components.

[0028] The water storage chamber 9 is arranged inside the box body 1 and communicated with the bottom of the gas flow chamber 6. Its main function is to collect rainwater that may penetrate into the gas flow chamber 6 through the filter screen 7 and prevent rainwater from entering the chamber 4.

[0029] When the cable junction box is working, the electrical components will generate heat. At this time, the external air enters the gas flow chamber 6 through the filter 7 on the heat dissipation chamber 5. The large particles of impurities and dust in the air are effectively blocked by the cleaning effect of the filter. Then, the clean air flows into the chamber 4 through the air inlet 8, exchanges heat with the electrical components, takes away the heat, and is discharged through the air inlet 8, the gas flow chamber 6 and the filter 7 on the other side to achieve the heat dissipation effect.

[0030] On rainy days or in humid environments, rainwater may penetrate into the gas flow chamber 6 through the filter 7. Under the action of gravity, the rainwater enters the gas flow chamber 6 and drips downward. The rainwater will be guided to the water storage chamber 9 for collection. The junction box will be water-cooled as a whole through the water storage chamber 9 at the bottom to further improve the cooling effect.

[0031] In this way, the gas can flow smoothly into the interior of the box 1, achieving an efficient heat dissipation effect. At the same time, it can also prevent rainwater from entering the interior of the box 1, ensuring the waterproof performance and providing reliable protection for the stable operation of the railway power system.

[0032] At the same time, through the cooperation between the slide rail 3 and the junction box 2, it is convenient to take out the junction box 2 as a whole, which is convenient for maintenance by the staff.

[0033] The rainwater collected in the water storage chamber 9 can increase the weight of the bottom of the box body 1, thereby improving the stability of the branch box, helping to reduce the shaking and displacement of the branch box under the action of wind or other external forces, and making it more firmly fixed in a predetermined position.

[0034] Specifically, in this embodiment, a mounting plate 10 is provided on the junction box 2, and the mounting plate 10 is connected to the bottom of the box body 1 by bolts.

[0035] The junction box 2 is provided with a rotating shaft, and a pulley is rotatably provided at the other end of the rotating shaft. The pulley is located inside the slide rail 3 and slidably cooperates with the slide rail 3.

[0036] The junction box 2 is connected to the bottom of the box body 1 by bolts through the mounting plate 10 thereon, ensuring stable installation. At the same time, the rotating shaft and pulley on the junction box 2 allow the junction box 2 to slide easily on the slide rail 3. This design makes the connection, branching and maintenance of cables more convenient.

[0037] In one implementation, the number of the slide rails 3 is twice the number of the junction boxes 2 , and two slide rails 3 are arranged oppositely at the upper and lower sides of the junction box 2 .

[0038] Since the slide rails 3 are arranged on the upper and lower sides of each junction box 2, the double slide rail design can ensure that the junction box 2 is more stable during movement and is not prone to shaking or tilting.

[0039] In this embodiment, a plurality of cable entry tubes are arranged on the front side of the junction box 2 .

[0040] The cable entry tubes provided on the front of the junction box 2 provide a direct channel for the introduction and branching of cables. These cable entry tubes usually correspond to the cable connection terminals inside the junction box, so that the cables can be easily connected and branched. Since multiple cable entry tubes are provided on the front, the connection of multiple cables can be handled at the same time, which improves work efficiency.

[0041] Preferably, Figure 2 and Figure 3 As shown, in this embodiment, a guide plate 11 is disposed inside the gas flow cavity 6 , and the guide plate 11 is disposed opposite to the air inlet hole 8 . A concave surface 12 is formed on one side of the guide plate 11 close to the air inlet hole 8 .

[0042] The guide plate 11 is placed inside the gas flow chamber 6 and is arranged opposite to the air inlet 8. This arrangement guides and controls the flow direction of the air entering the chamber 4 when passing through the guide plate. A concave surface 12 is provided on the side of the guide plate 11 close to the air inlet 8. The concave surface 12 can further change the flow pattern of the air, form a vortex or increase the disturbance of the air, so that the airflow accumulated at the concave surface 12 quickly passes through the air inlet 8 and flows into the chamber 4.

[0043] Through the synergistic effect of the guide plate 11 and the concave surface 12, the air flow path can be optimized, the gas flow speed can be increased, and the heat can be dissipated more quickly and evenly, thereby effectively reducing the operating temperature of the electrical components and improving the stability and reliability of the entire system.

[0044] As a preferred embodiment, in this embodiment, a non-woven filter cotton is arranged inside the gas flow cavity 6 , and the non-woven filter cotton is located between the air inlet 8 and the filter screen 7 .

[0045] The non-woven filter cotton can absorb water vapor in the humid gas, making the gas entering the chamber 4 drier.

[0046] Non-woven filter cotton has good adsorption performance. In a humid environment, non-woven filter cotton can absorb water vapor in the air and reduce the adverse effects of humid gas on electrical components. This feature allows the cable junction box to remain dry inside even in a humid environment, thereby extending the service life of electrical components and improving the stability of the entire system.

[0047] In this embodiment, a plurality of water baffles 13 are arranged inside the gas flow cavity 6 , and the plurality of water baffles 13 are symmetrically arranged with the filter screen 7 , and the water baffles 13 are inclined downwards near the filter screen 7 .

[0048] When external air enters the gas flow chamber 6 through the filter 7 , if the air contains moisture or raindrops, the moisture will be intercepted by the water retaining plate 13 and slide down along its inclined surface, thereby preventing the moisture from entering the interior of the chamber 4 .

[0049] As a preferred embodiment, the present implementation scheme also includes a control mechanism 14, which includes an electromagnetic valve 142 and a group of water level sensors 141, wherein the water level sensor 141 is arranged at the bottom of the gas flow chamber 6, and the electromagnetic valve 142 is arranged on the water storage chamber 9, wherein the electromagnetic valve 142 is electrically connected to the water level sensor 141.

[0050] The water level sensor 141 is arranged at the bottom of the gas flow chamber 6 and is used to monitor the water level changes in the gas flow chamber 6 in real time. When moisture enters the gas flow chamber 6 through the filter 7 due to certain reasons such as blockage of the filter 7 or external extreme weather conditions, and is collected too much inside the water storage chamber 9, the water level sensor can quickly sense the rise in water level.

[0051] The electromagnetic valve 142 is installed on the water storage chamber 9, and its function is to control the water storage in the water storage chamber 9. Under normal circumstances, the electromagnetic valve is in a closed state, and the water in the gas flow chamber 6 flows into the water storage chamber 9 for collection. When the water level sensor 141 senses that the water level rises and reaches a preset threshold, the electromagnetic valve 142 will receive a signal and automatically open, allowing rainwater in the water storage chamber 9 to drain.

[0052] Furthermore, in this embodiment, the water storage chamber 9 is located at the bottom of the chamber 4 , and a temperature sensor 15 is provided inside the water storage chamber 9 for monitoring the water temperature inside the water storage chamber 9 , wherein the temperature sensor 15 is electrically connected to the electromagnetic valve 142 .

[0053] The temperature sensor 15 is placed inside the water storage chamber 9 to monitor the water temperature change in the water storage chamber 9 in real time. Under extreme weather conditions, such as high or low temperature environments, the water temperature in the water storage chamber 9 may change, thereby affecting the normal operation of other electrical components inside the cable junction box. By real-time monitoring of the water temperature by the temperature sensor, potential safety hazards can be discovered in a timely manner.

[0054] The temperature sensor 15 is electrically connected to the electromagnetic valve 142. When the temperature sensor 15 detects that the water temperature in the water storage chamber 9 exceeds or falls below a preset safety range, it sends a signal to the electromagnetic valve 142. After receiving the signal, the electromagnetic valve 142 automatically opens to discharge the water in the water storage chamber 9 to prevent the water temperature change from damaging the electrical components inside the cable junction box.

[0055] It should be noted that, in this embodiment, the box body 1 is provided with a top cover, and a sealed door is hinged on the front of the box body 1.

[0056] The top cover can effectively protect the internal structure and electrical components of the box body 1 from the influence of the external environment. In bad weather conditions, the top cover can prevent rain, snow and the like from entering the box body, ensuring the normal operation of the electrical components. At the same time, the top cover can also prevent dust, debris and the like from accumulating on the box body, keeping the cable junction box clean and beautiful.

[0057] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0058] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0059] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A cable distribution box for railway power, It is characterized in that include: A box (1), a junction box (2) and a slide rail (3), wherein the box (1) has a chamber (4) for installing components, the slide rail (3) is arranged inside the box (1), the junction box (2) is slidably arranged inside the box (1), and the slide rail (3) and the junction box (2) are slidably matched; A heat dissipation chamber (5) is arranged on the box body (1) opposite to the box body, a gas flow chamber (6) is provided inside the heat dissipation chamber (5), a filter screen (7) is arranged on the heat dissipation chamber (5), a plurality of air inlet holes (8) located above the filter screen (7) are provided between the gas flow chamber (6) and the chamber (4), and the air inlet holes (8) are used to guide the gas to flow into the chamber (4); A water storage chamber (9) is provided inside the box body (1), the bottom of the gas flow chamber (6) is connected to the water storage chamber (9), and the water storage chamber (9) is used to collect rainwater.

2. A cable junction box for railway power as claimed in claim 1, Features: The junction box (2) is provided with a mounting plate (10), and the mounting plate (10) is connected to the bottom of the box body (1) via bolts.

3. A cable junction box for railway power as claimed in claim 1, Features: A guide plate (11) is arranged inside the gas flow cavity (6), the guide plate (11) is arranged opposite to the air inlet hole (8), and a concave surface (12) is provided on a side of the guide plate (11) close to the air inlet hole (8).

4. A cable junction box for railway power as claimed in claim 1, Features: A plurality of water baffles (13) are arranged inside the gas flow cavity (6), and the plurality of water baffles (13) are symmetrically arranged with the filter screen (7), and the water baffles (13) are inclined downwards on a side close to the filter screen (7).

5. A cable junction box for railway power as claimed in claim 1, Features: It also includes a control mechanism (14), the control mechanism (14) including an electromagnetic valve (142) and a group of water level sensors (141), the water level sensor (141) is arranged at the bottom of the gas flow chamber (6), and the electromagnetic valve (142) is arranged on the water storage chamber (9).

6. A cable junction box for railway power as claimed in claim 1, Features: The water storage chamber (9) is located at the bottom of the chamber (4), and a temperature sensor (15) is arranged inside the water storage chamber (9) and is used to monitor the water temperature inside the water storage chamber (9).

7. A cable junction box for railway power as claimed in claim 1, Features: The box body (1) is provided with a top cover, and the front of the box body (1) is hinged with a sealed door.

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