Automatic cooling system for mining electric locomotive high-voltage electric appliance control room

Abstract

The utility model discloses an automatic cooling system for a high-voltage electric appliance control room of a mining electric locomotive, which belongs to the technical field of heat dissipation of electric locomotives and comprises an electric locomotive body, a charger and a cooling system, the charger and the cooling system are arranged on the electric locomotive body, and the cooling system comprises a controller mounted at the top in the electric locomotive body and a temperature sensor arranged on the controller. The direct-current cooling fans are located at the top of the motor vehicle body, the rainproof cover is installed above the direct-current cooling fans, the direct-current cooling fans are connected with the controller through wires, the direct-current cooling fans are connected in parallel through wires, and the controller is connected with the charger through a wire. According to the utility model, the temperature sensor and the direct-current cooling fan are arranged in a matched manner, so that the temperature in the electric locomotive can be monitored in real time, and heat can be dissipated in time.

Description

Technical Field

[0001] This utility model relates to the field of electric locomotive heat dissipation technology, specifically an automatic cooling system for the high-voltage electrical control room of a mining electric locomotive. Background Technology

[0002] As the main auxiliary rail transport equipment in coal mines, electric locomotives are responsible for transporting personnel, equipment, and gangue, playing an extremely important role in coal production. They are one of the main pieces of equipment in underground transportation hubs, and the safe and efficient operation of electric locomotives is essential for ensuring normal mine production. Currently, most mining electric locomotives are variable frequency speed-regulating locomotives, which have large starting tonnage and high speed controllability, playing a crucial role in transporting large supports and other equipment.

[0003] During locomotive operation, the temperature inside the main track roadway reaches 26-32 degrees Celsius in summer due to factors such as shaft depth and high ground temperature. This temperature is highly unfavorable for the high-frequency, long-term operation of locomotives. Current technology typically uses heat dissipation panels for the frequency converters of locomotives. However, in practical applications, this method is not ideal. Firstly, the airflow in the underground roadway is parallel to the vehicle, resulting in less heat being carried away by the air as it passes through the car. Secondly, the air inside the car is almost stagnant, easily causing the frequency converter to frequently stop due to high-temperature alarms. It requires the vehicle to be stopped and cooled before restarting, affecting operation. Furthermore, if excessive temperature leads to electrical malfunctions requiring repair, poor ventilation increases the difficulty of the workers' work. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic cooling system for the high-voltage electrical control room of a mining locomotive, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: In order to solve the above technical problems, the inventors, through practice and summarization, derived the technical solution of this utility model. This utility model discloses an automatic cooling system for the high-voltage electrical control room of a mining locomotive, including a charger and a cooling system installed on the locomotive body. The cooling system includes a controller installed on the top of the locomotive body, a temperature sensor installed on the controller, multiple DC cooling fans located on the top of the locomotive body, and a rain cover installed above the multiple DC cooling fans. The DC cooling fans are electrically connected to the controller, and the controller is electrically connected to the charger.

[0006] The following improvement is made in this application: the temperature sensor is connected to the controller on the side away from the DC cooling fan and directly corresponds to the heat source. The temperature sensor is integrated outside the controller and corresponds to the heat source. It senses the internal temperature of the motor vehicle body and sends a signal to the controller. When the temperature sensor reaches the set minimum temperature, the controller receives the signal and controls the DC cooling fan to operate at a low speed. As the temperature rises, the controller controls the speed of the DC cooling fan to increase accordingly.

[0007] The following improvements are made in this application: the rain cover includes a horizontal part parallel to the top of the motor vehicle body and a vertical part formed by bending the two ends of the horizontal part. The top of the motor vehicle body within the coverage area of ​​the rain cover is provided with multiple support rods to support the horizontal part and limit the vertical part. A gap is provided between the vertical part and the top of the motor vehicle body to form an air duct, so that an air duct is formed between the rain cover and the DC cooling fan, further enhancing heat dissipation.

[0008] The following improvements are made in this application: multiple heat dissipation holes are provided on the vertical part of the rain cover to reduce heat accumulation and improve heat dissipation effect.

[0009] The following improvement is made in this application: the controller is covered with a heat insulation layer, which is made of fiber or nano heat insulation material.

[0010] The following improvements are made in this application: the DC cooling fan is connected to the controller via a wire, and multiple DC cooling fans are connected in parallel via wires. The controller is connected to the charger via a wire, and the wire is provided with a protective layer made of phenolic foam.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This utility model discloses an automatic cooling system for the high-voltage electrical control room of a mining locomotive. Through the coordinated setup of a temperature sensor and a DC cooling fan, it enables real-time monitoring and timely heat dissipation of the locomotive's internal temperature. This solves the problem of electrical faults caused by excessively high temperatures inside the locomotive, reduces the operational difficulty for workers when performing maintenance inside the locomotive, improves maintenance quality and work efficiency, and ensures worker safety. It has great application and promotion value. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the rain cover structure in this utility model.

[0015] In the diagram: 1. Motor car body; 2. Controller; 21. Temperature sensor; 22. DC cooling fan; 3. Rain cover; 31. Horizontal part; 32. Vertical part; 33. Heat dissipation hole; 4. Charger; 5. Support rod. Detailed Implementation

[0016] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figure 1 As shown, an automatic cooling system for the high-voltage electrical control room of a mining locomotive is installed inside the locomotive body 1. The system consists of a controller 2, a temperature sensor 21, two DC cooling fans 22, and a rain cover 3. Through the coordinated operation of the temperature sensor 21 and the DC cooling fans 22, the system enables real-time monitoring and timely heat dissipation of the locomotive's internal temperature. This solves the problem of electrical faults caused by excessively high temperatures inside the locomotive, reduces the operational difficulty for workers when performing maintenance inside the locomotive, improves maintenance quality and work efficiency, and ensures worker safety.

[0018] The controller 2 is installed on the inner top of the motor car body 1, the temperature sensor 21 is connected to the controller 2 and directly corresponds to the heat source; two DC cooling fans 22 are installed in two through holes opened on the top of the motor car body 1, and the DC cooling fans 22 and the temperature sensor 21 are located on both sides of the controller 2 respectively, and the rain cover 3 is installed above the multiple DC cooling fans 22.

[0019] like Figure 2 As shown, it consists of a horizontal part 31 parallel to the top of the motor vehicle body 1 and a vertical part 32 connected to both ends of the horizontal part 31. The vertical part 32 is also provided with multiple heat dissipation holes 33 to reduce heat accumulation. At the same time, the top of the motor vehicle body 1 within the range of the rain cover 3 is provided with multiple support rods 5 to support the horizontal part 31 and limit the vertical part 32, and to form an air duct between the rain cover 3 and the DC cooling fan 22 to further enhance heat dissipation.

[0020] A charger 4 is also installed on the motor car body 1. The controller 2 is connected to the charger 4 through wires. At the same time, the DC cooling fan 22 is connected to the controller 2 through wires. The two DC cooling fans 22 are connected in parallel through wires. The controller 2 is covered with a heat insulation layer made of nano heat insulation material, and the wires are covered with a protective layer made of phenolic foam plastic to prevent the high temperature environment inside the motor car body 1 from damaging the controller 2 and the wires.

[0021] Working principle: The controller 2 is fixed inside the top of the motor car body 1 and is powered by the charger 4. The temperature sensor 21 is integrated outside the controller 2 and corresponds to the heat source inside the motor car body 1. It senses the internal temperature of the motor car body 1 and sends a signal to the controller 2. When the temperature sensor 21 reaches the set minimum temperature, the controller 2 receives the signal and controls the DC cooling fan 22 to run at low speed. As the temperature rises, the controller 2 controls the speed of the DC cooling fan 22 to increase with the temperature, forming an automatic cooling system for the high-voltage control room.

[0022] 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 mine electric locomotive high-voltage electric appliance control room automatic cooling system, comprising a charging machine (4) and a cooling system arranged on a body (1) of the electric locomotive, characterized in that: The cooling system comprises a controller (2) installed on the top of the electric locomotive body (1), a temperature sensor (21) arranged on the controller (2), a plurality of direct-current cooling fans (22) located on the top of the electric locomotive body (1), and a rainproof cover (3) installed above the plurality of direct-current cooling fans (22), the direct-current cooling fans (22) are electrically connected with the controller (2), and the controller (2) is electrically connected with a charger (4).

2. The mine electric locomotive high-voltage electric appliance control room automatic cooling system according to claim 1, characterized in that: The temperature sensor (21) is connected to the controller (2) on the side away from the direct-current cooling fans (22) and directly corresponds to the heat source.

3. The mine electric locomotive high-voltage electric appliance control room automatic cooling system according to claim 2, characterized in that: The rainproof cover (3) comprises a horizontal part (31) arranged parallel to the top of the electric locomotive body (1) and vertical parts (32) formed by bending the two ends of the horizontal part (31), a plurality of supporting rods (5) are arranged on the top of the electric locomotive body (1) within the shielding range of the rainproof cover (3) and are used for supporting the horizontal part (31) and limiting the vertical parts (32), and a gap is arranged between the vertical parts (32) and the top of the electric locomotive body (1) to form an air duct.

4. The mine electric locomotive high-voltage electric appliance control room automatic cooling system according to claim 3, characterized in that: A plurality of heat dissipation holes (33) are arranged on the vertical parts (32) of the rainproof cover (3).

5. The mine electric locomotive high-voltage electric appliance control chamber automatic cooling system according to claim 1, characterized in that: An insulating layer is arranged outside the controller (2), and the insulating layer is made of fiber or nano insulating material.

6. The mine electric locomotive high-voltage electric appliance control chamber automatic cooling system according to claim 1, characterized in that: The direct-current cooling fans (22) are connected with the controller (2) through wires, the plurality of direct-current cooling fans (22) are connected in parallel through wires, the controller (2) is connected with the charger (4) through wires, a protective layer is arranged outside the wires, and the protective layer is made of phenolic foam plastic.

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