A cooling and heat dissipation device for rail vehicles

Abstract

This utility model discloses a cooling and heat dissipation device for railcars, relating to the technical field of railcar cooling equipment. The utility model includes a cooling shell, a first radiator, a second radiator, and a mounting bracket. The first radiator is fixed to both sides of the inner wall of the cooling shell, the second radiator is fixed to the lower inner part of the cooling shell, and the mounting bracket is fixed to the center of the inner top of the cooling shell. Several horizontal waterproof plates are fixed to both ends of the cooling shell, and a ventilation opening is provided at the end of the cooling shell below each waterproof plate. This utility model, by setting up a cooling shell, first radiator, second radiator, and mounting bracket, solves the problems of water accumulation in railcar cooling and heat dissipation devices after water ingress, which poses a safety hazard, and the high energy consumption of the entire vehicle due to the fan requiring full power for cooling during operation and after parking. The advantages of this utility model are: easy drainage after water ingress into the railcar cooling and heat dissipation device, and significant reduction in overall vehicle energy consumption.

Description

Technical Field

[0001] This utility model belongs to the technical field of railcar cooling equipment, and in particular relates to a cooling and heat dissipation device for railcars. Background Technology

[0002] The cooling and heat dissipation system of a railcar is a key device to ensure the stable operation of its power system. It is mainly used to control the temperature of core components such as the engine, traction motor, converter, and braking resistor, preventing performance degradation or malfunctions caused by overheating. Depending on the heat dissipation medium and principle, this system mainly employs three methods: air cooling, liquid cooling, and oil cooling. Air cooling relies on direct air cooling; it has a simple structure but low efficiency and is commonly used in small and medium-sized internal combustion engines and braking resistor cooling. Liquid cooling achieves efficient heat exchange through coolant circulation and radiators, and is widely used in high-power diesel engines and converter and motor cooling in modern high-speed trains. Oil cooling uses insulating oil to cool electrical components and is mainly found in the main transformer of electric locomotives. However, the cooling and heat dissipation system of railcars still has the following drawbacks in practical use: When the cooling and heat dissipation device of the railcar is in operation, it directly uses the heat dissipation device for heat dissipation and cooling. However, during the heat dissipation process, air needs to be drawn in from the outside and blown out. But after rainy days, rainwater will be drawn into the heat dissipation device, and the rainwater will pose a safety hazard in the radiator. Secondly, when the cooling and heat dissipation device of the railcar is working, it directly draws in outside air through the fan and then dissipates the air through the radiator inside the cooling device before outputting it. However, when the railcar is running smoothly, the fan still needs to run at full speed, which requires too much electricity for heat dissipation and increases the overall energy consumption of the railcar. Utility Model Content

[0003] The purpose of this utility model is to provide a cooling and heat dissipation device for rail vehicles. By setting up a cooling shell, radiator one, radiator two and mounting bracket, it solves the problems of water accumulation in the cooling and heat dissipation device of rail vehicles after water ingress, which poses a safety hazard, and the high energy consumption of the whole vehicle due to the fan requiring full power for heat dissipation during operation and after stopping.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a cooling and heat dissipation device for rail vehicles, comprising a cooling shell, a first radiator, a second radiator, and a mounting bracket. The first radiator is fixed to both sides of the inner wall of the cooling shell, the second radiator is fixed to the lower inner part of the cooling shell, and the mounting bracket is fixed to the center of the top inner part of the cooling shell. Several horizontal waterproof plates are fixed to both ends of the cooling shell, and a ventilation opening is provided at the end of the cooling shell below each waterproof plate. The first radiator is installed on both sides inside the cooling shell, the second radiator is provided at the bottom, and the mounting bracket is fixed to the center of the top. The horizontal waterproof plates at both ends of the cooling shell are used to reduce rainwater ingress, and a ventilation opening is provided at the end of the shell below each waterproof plate for air circulation.

[0005] Furthermore, support blocks are fixed at the four corners of the bottom of the cooling shell, and mounting ears are fixed at the lower edge of one side of each support block. Support blocks are provided at the four corners of the bottom of the cooling shell, and mounting ears are installed on the lower side of each support block, which are used to suspend and support the cooling shell and fix it to the top of the railcar.

[0006] Furthermore, the radiator includes a heat dissipation pipe and an elbow joint. The heat dissipation pipe is S-shaped and both ends of the heat dissipation pipe are fixedly connected to elbow joints. All the elbow joints are fixedly connected inside the cooling housing. The radiator consists of the S-shaped heat dissipation pipe and the elbow joints at both ends. The elbow joints pass through the cooling housing and are connected to an external liquid circulation device, allowing liquid to flow into the heat dissipation pipe for cooling.

[0007] Furthermore, the radiator also includes heat dissipation fins, and several heat dissipation fins are horizontally fixed at equal intervals around the circumference of the heat dissipation pipe. All of the heat dissipation fins are fixed to the inner wall of the cooling housing. The radiator also includes multiple heat dissipation fins horizontally fixed at equal intervals around the circumference of the heat dissipation pipe. All of the heat dissipation fins are fixed to the inner wall of the cooling housing to enhance the heat dissipation effect.

[0008] Furthermore, the second radiator includes two heat dissipation fins and two heat dissipation pipes. The bottom of the cooling housing is open, and several heat dissipation fins are fixed at equal intervals along the length of the bottom edge of the cooling housing. An S-shaped heat dissipation pipe is fixed inside each heat dissipation fin, with both ends of the heat dissipation pipe passing through the cooling housing and extending outwards. The second radiator includes multiple heat dissipation fins located at the edge of the bottom opening of the cooling housing, and S-shaped heat dissipation pipes embedded therein. The two ends of the heat dissipation pipes extend out of the cooling housing and connect to external equipment. Liquid flows through the heat dissipation fins and is cooled.

[0009] Furthermore, a waterproof motor is fixed to one side of the mounting bracket. The output shaft of the waterproof motor passes through the mounting bracket and is fixed to a fan frame at its end. The motor drives the fan blades to rotate, forcing air circulation when the train is stationary to enhance heat dissipation.

[0010] This utility model has the following beneficial effects: This utility model solves the problem of water accumulation and safety hazards in the cooling and heat dissipation device of the railcar after water ingress by setting up a cooling shell, radiator one, and radiator two. After rain, rainwater is reduced by the waterproof plate on the cooling shell, and rainwater that enters the cooling shell leaks out through the gaps between the heat dissipation fins two, so that no water accumulates in the cooling shell during the overall operation, ensuring the safety of operation.

[0011] This invention solves the problem of high energy consumption in the cooling system of railcars by setting up a cooling shell, radiator one, radiator two, and mounting bracket. The fan in the cooling system needs to operate at full power during operation and after stopping. When the railcar stops, a waterproof motor is started. During stable operation, the waterproof motor can operate at low speed. The movement of the railcar allows air to be delivered to the cooling shell. When the waterproof motor is working, the power generated by the motor drives the fan frame to rotate. Simultaneously, the rotation of the fan frame draws air in from one end of the cooling shell and out from the other end, ensuring full air circulation within the cooling shell. As the air passes through the cooling shell, it passes through radiator one and radiator two, accelerating the cooling of radiator pipes one and two. This ensures sufficient cooling of the liquid in radiator pipes one and two, eliminating the need for the fan in the cooling system to operate at full power during operation, resulting in lower overall energy consumption for the railcar. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a three-dimensional view of a partially cut-open cooling and heat dissipation device for a rail vehicle. Figure 2 This is a three-dimensional structural view of the cooling housing; Figure 3 This is a three-dimensional structural view of radiator one. Figure 4 This is a three-dimensional structural view of radiator two; Figure 5 This is a three-dimensional structural view of the mounting bracket.

[0014] Figure label: 1. Cooling shell; 101. Vent; 102. Waterproof plate; 103. Support block; 104. Mounting lug; 2. Radiator one; 201. Heat dissipation fin one; 202. Heat dissipation pipe one; 203. Elbow joint; 3. Radiator two; 301. Heat dissipation fin two; 302. Heat dissipation pipe two; 4. Mounting bracket; 401. Waterproof motor; 402. Fan bracket. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Specific Implementation Example 1

[0016] Please see Figure 1-4 This utility model is a cooling and heat dissipation device for railcars, including a cooling shell 1, a first radiator 2, a second radiator 3, and a mounting bracket 4. Radiators 2 are fixed on both sides of the inner wall of the cooling shell 1. When the cooling shell 1 is working, air enters it to cool the railcar passing through the first radiator 2 and the second radiator 3 with liquid air cooling. The two first radiators 2 respectively carry two different liquids through them for cooling. Radiator 3 is fixed in the lower inner part of the cooling shell 1, and another liquid is transported through it. The mounting bracket 4 is fixed in the center of the inner top of the cooling shell 1. The mounting bracket 4 provides an installation position for a waterproof motor 401 and a fan frame 402 that generate airflow when the train is stationary. Several horizontal waterproof plates 102 are fixed at both ends of the cooling shell 1. The waterproof plates 102 reduce rainwater from entering the cooling shell 1 during rain. Each waterproof plate 102 has a vent 101 at the end of the cooling shell 1 below it, through which the cooling shell 1 takes in and vents air.

[0017] Specifically, support blocks 103 are fixed at the four corners of the bottom of the cooling housing 1, and mounting ears 104 are fixed at the lower edge of one side of each support block 103. The cooling housing 1 is raised and suspended on the railcar by the support blocks 103, and the mounting ears 104 provide an installation position for the cooling housing 1 on the railcar.

[0018] Furthermore, the radiator 2 includes a heat dissipation pipe 202 and an elbow joint 203. The heat dissipation pipe 202 is S-shaped, and both ends of the heat dissipation pipe 202 are fixedly connected to the elbow joint 203. All elbow joints 203 are fixedly installed inside the cooling housing 1. The ends of the two elbow joints 203 included in the same radiator 2 that are away from the heat dissipation pipe 202 are respectively connected to the input end and the output end of the circulation equipment that uses the cooling liquid. This allows the liquid to enter from one elbow joint 203, enter the heat dissipation pipe 202, and then be delivered to the other elbow joint 203 for output. This ensures that the liquid that needs to dissipate heat and cool during operation is delivered through the heat dissipation pipe 202.

[0019] Furthermore, the radiator 2 also includes heat dissipation fins 201. Several heat dissipation fins 201 are horizontally fixed at equal intervals around the heat dissipation pipe 202, and all heat dissipation fins 201 are fixed on the inner wall of the cooling shell 1. When the liquid that needs to be cooled is transported through the heat dissipation pipe 202, the heat of the liquid is dissipated and cooled on the heat dissipation fins 201.

[0020] Furthermore, the radiator 2 3 includes heat dissipation fins 2 301 and heat dissipation pipes 2 302. The bottom of the cooling shell 1 is open, and a number of heat dissipation fins 2 301 are fixed at equal intervals along the length of the bottom edge of the cooling shell 1. The heat dissipation fins 2 301 are fixed with S-shaped heat dissipation pipes 2 302. Both ends of the heat dissipation pipes 2 302 pass through the cooling shell 1 and extend out. The two ends of the heat dissipation pipes 2 302 are fixedly connected to the input and output ends of the equipment that circulates the cooling liquid, respectively, so that the liquid that needs to be cooled is transported through the heat dissipation pipes 2 302, and the heat is transferred to the heat dissipation fins 2 301 in the heat dissipation pipes 2 302, and is quickly cooled and dissipated under the heat exchange of the air passing through the cooling shell 1.

[0021] The operation process of this embodiment is as follows: During operation, the cooling shell 1 is first placed on the railcar, and the support block 103 at the bottom of the cooling shell 1 is supported on the top of the railcar. At the same time, the length direction of the cooling shell 1 is set parallel to the direction of train travel. After the mounting bolts are inserted into the mounting ears 104, they are screwed into the mounting equipment of the railcar, so that the cooling shell 1 is suspended and supported on the top of the railcar by the support block 103. When the railcar is running, air enters from the vent 101 at one end of the cooling shell 1 and exits from the other vent 101. When the air passes through the heat dissipation fins 201 and 301 in the cooling shell 1, it dissipates heat for the liquid flowing through the heat dissipation pipes 202 and 302. After rain, rainwater enters through the waterproof plate 102 on the cooling shell 1, and the rainwater that enters the cooling shell 1 leaks out through the gaps between the heat dissipation fins 301, so that no water accumulates inside the cooling shell 1 during the overall operation, ensuring the safety of the operation. Specific Implementation Example 2

[0022] Please see Figure 1-5 Based on the first specific embodiment, a waterproof motor 401 is fixed on one side of the mounting frame 4. The output shaft of the waterproof motor 401 passes through the mounting frame 4 and a fan frame 402 is fixed at its end. The mounting frame 4 drives the fan frame 402 to rotate through the power generated by the waterproof motor 401. At the same time, during the rotation of the fan frame 402, air enters from one end of the cooling housing 1 through the ventilation port 101 and exits from the other end of the ventilation port 101.

[0023] The operation process of this embodiment is as follows: During operation, when the railcar stops, the waterproof motor 401 is started. When the railcar is running smoothly, the waterproof motor 401 can work at a low speed. The movement of the railcar can help deliver air to the cooling shell 1. When the waterproof motor 401 is working, the power generated by the waterproof motor 401 drives the fan frame 402 to rotate. At the same time, as the fan frame 402 rotates, air enters from one end of the cooling shell 1 through the ventilation port 101 and exits from the other end of the ventilation port 101, so that the air in the cooling shell 1 is fully circulated. When the air passes through the cooling shell 1, it passes through the first heat dissipation fin 201 and the second heat dissipation fin 301, which accelerates the heat dissipation of the first heat dissipation pipe 202 and the second heat dissipation pipe 302, so that the liquid in the first heat dissipation pipe 202 and the second heat dissipation pipe 302 is fully cooled.

[0024] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," 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.

[0025] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A cooling and heat dissipation device for a railcar, comprising a cooling shell (1), a first radiator (2), a second radiator (3), and a mounting bracket (4), characterized in that: Heat sink 1 (2) is fixed on both sides of the inner wall of the cooling shell (1), heat sink 2 (3) is fixed on the lower inner part of the cooling shell (1), mounting bracket (4) is fixed on the center of the inner top of the cooling shell (1), and several horizontal waterproof plates (102) are fixed on both ends of the cooling shell (1). Ventilation opening (101) is provided at the end of the cooling shell (1) below each waterproof plate (102).

2. A cooling and heat dissipation device for a railcar according to claim 1, characterized in that: Support blocks (103) are fixed at the four corners of the bottom of the cooling shell (1), and mounting ears (104) are fixed at the lower edge of one side of each support block (103).

3. A cooling and heat dissipation device for a railcar according to claim 1, characterized in that: The radiator (2) includes a heat dissipation pipe (202) and a bend (203). The heat dissipation pipe (202) is S-shaped and both ends of the heat dissipation pipe (202) are fixedly connected to bends (203). All the bends (203) are fixedly connected inside the cooling shell (1).

4. A cooling and heat dissipation device for a railcar according to claim 3, characterized in that: The radiator (2) further includes heat dissipation fins (201). Several heat dissipation fins (201) are fixed horizontally at equal intervals around the heat dissipation pipe (202), and all the heat dissipation fins (201) are fixed on the inner wall of the cooling shell (1).

5. A cooling and heat dissipation device for a railcar according to claim 1, characterized in that: The second heat sink (3) includes a second heat sink fin (301) and a second heat sink pipe (302). The bottom of the cooling shell (1) is open, and a number of second heat sink fins (301) are fixed at equal intervals along the length direction at the bottom edge of the cooling shell (1). The second heat sink pipe (302) is fixed in an S-shape inside the second heat sink fin (301). Both ends of the second heat sink pipe (302) pass through the cooling shell (1) and extend out.

6. A cooling and heat dissipation device for a railcar according to claim 1, characterized in that: A waterproof motor (401) is fixed on one side of the mounting bracket (4), and the output shaft of the waterproof motor (401) passes through the mounting bracket (4) and is fixed at the end with a fan frame (402).

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