Rail transit locomotive mechanical room camera

By installing evenly distributed supplementary lights and separate circuit components in the camera in the mechanical compartment of rail transit locomotives, the problem of poor shooting effect of traditional cameras in dark environments has been solved, achieving efficient supplementary lighting and stable monitoring.

CN224191999UActive Publication Date: 2026-05-01SHENZHEN JINNOT ELECTRONIC TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN JINNOT ELECTRONIC TECH CO LTD
Filing Date
2025-06-03
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Traditional surveillance cameras have poor lighting performance in dark environments, resulting in poor image quality.

Method used

A camera for the mechanical compartment of a rail transit locomotive was designed. It consists of an outer shell, a sealing cover, circuit components, a camera, and a supplementary lighting component. Supplementary lights are evenly distributed around the camera, and the camera is protected and cooled by a ring wall, a transparent viewing window, and a separate circuit component.

Benefits of technology

It achieved excellent shooting results in dark environments, improved the clarity and stability of monitoring images, reduced maintenance costs and energy consumption, and enhanced the product's competitiveness and adaptability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a rail transit locomotive machinery room camera, which comprises an outer shell, a plugging cover, a circuit assembly, a camera and a light supplementing assembly, the outer shell is a container with an opening on one side, the opening is a first opening, the inner part of the outer shell is provided with a first accommodating space, and the circuit assembly is arranged in the first accommodating space; the plugging cover is fixedly installed at the first opening to plug the first containing space, the camera is fixedly installed based on the circuit assembly, the light supplementing assembly comprises a first circuit board and a plurality of light supplementing lamps, the first circuit board and the plugging cover are fixedly installed, the light supplementing lamps are fixedly installed on the first circuit board, and the light supplementing lamps are evenly distributed around the camera. The problem that a traditional monitoring camera is generally provided with a single light source for supplementing light to a camera, the light supplementing effect is poor, and then the shooting effect of the monitoring camera in a dark environment is poor is solved.
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Description

Technical Field

[0001] This utility model relates to the field of monitoring equipment technology, and in particular to a camera for the mechanical room of a rail transit locomotive. Background Technology

[0002] With rapid societal development, the monitoring and management of safety hazards have become increasingly important. In many places, such as factories, warehouses, and public areas, comprehensive safety inspections are necessary to ensure the safety of personnel and property. In the rail transit sector, such as in locomotive engine rooms, lighting is highly unstable. To ensure that surveillance cameras can capture clear images even in dark environments, supplemental lighting is usually required.

[0003] However, traditional surveillance cameras typically only have a single light source to illuminate the camera, resulting in poor lighting performance and consequently poor shooting quality in dark environments, which needs improvement. Utility Model Content

[0004] This application provides a camera for the machine room of a rail transit locomotive, which aims to solve the problem that traditional surveillance cameras usually only have a single light source to supplement the camera, resulting in poor supplementary lighting and thus poor shooting performance in dark environments.

[0005] To solve the above-mentioned technical problems, this application proposes a camera for the mechanical compartment of a rail transit locomotive. The camera for the mechanical compartment of a rail transit locomotive includes: a housing, a sealing cover, a circuit assembly, a camera, and a supplementary lighting assembly.

[0006] The outer casing is a container with an opening on one side, the opening being a first opening, and the interior of the outer casing has a first accommodating space, in which the circuit assembly is disposed;

[0007] The sealing cap is fixedly installed at the first opening to seal the first accommodating space;

[0008] The camera is fixedly mounted based on the circuit assembly, and the camera penetrates through the sealing cover;

[0009] The supplementary lighting component includes a first circuit board and a plurality of supplementary lights. The first circuit board is fixedly installed with the sealing cover, and the supplementary lights are fixedly installed on the first circuit board and the plurality of supplementary lights are evenly distributed around the camera.

[0010] The camera in the mechanical compartment of the rail transit locomotive also includes a first ring wall, which is located on the side of the sealing cover away from the first accommodating space, and the camera and the supplementary lighting component are located in the space enclosed by the first ring wall.

[0011] The first ring wall protrudes towards the camera to form a protrusion, and the camera in the mechanical room of the rail transit locomotive also includes a microphone, which is fixedly installed at the position of the protrusion.

[0012] The camera in the mechanical compartment of the rail transit locomotive also includes a transparent viewing window, which is embedded in the inner circumference of the first ring wall to seal the space enclosed by the first ring wall.

[0013] The transparent window panel has a recessed portion that matches the protruding portion.

[0014] The circuit assembly includes a camera motherboard and a main control motherboard, which are spaced apart and electrically connected. Dividing the circuit assembly into two parts, the camera motherboard and the main control motherboard, helps to reduce heat generation.

[0015] The bottom of the outer casing protrudes into the first accommodating space to form a first protrusion, which fits against the main control motherboard to facilitate heat dissipation for the main control motherboard.

[0016] The bottom of the outer casing is provided with several heat dissipation fins to further dissipate heat from the main control motherboard.

[0017] The outer periphery of the first ring wall is provided with a plurality of protrusions, which are integrally formed with the first ring wall. The protrusions are used to dissipate heat for the camera and also serve a decorative purpose.

[0018] The supplementary lighting component also includes a light sensor, which is fixedly mounted on the first circuit board.

[0019] The beneficial effects of this application are as follows: The rail transit locomotive mechanical room camera provided in this application includes a housing, a sealing cover, a circuit assembly, a camera, and a supplementary lighting assembly. The housing is a container with an opening on one side, which is a first opening. The interior of the housing has a first accommodating space. The circuit assembly is disposed in the first accommodating space. The sealing cover is fixedly installed at the first opening to seal the first accommodating space. The camera is fixedly installed based on the circuit assembly and penetrates through the sealing cover. The supplementary lighting assembly includes a first circuit board and several supplementary lights. The first circuit board is fixedly installed with the sealing cover, and the supplementary lights are fixedly installed on the first circuit board. The several supplementary lights are evenly distributed around the camera. By setting several supplementary lights evenly distributed around the camera, the camera can have a good shooting effect even in dark environments. Attached Figure Description

[0020] Figure 1This is a three-dimensional structural schematic diagram of a camera in the mechanical compartment of a rail transit locomotive according to an embodiment of the present invention;

[0021] Figure 2 This is a three-dimensional structural diagram of a camera in the mechanical compartment of a rail transit locomotive after the transparent viewing window plate has been removed, according to an embodiment of this utility model.

[0022] Figure 3 This is an exploded view of a camera in the mechanical compartment of a rail transit locomotive according to an embodiment of this utility model;

[0023] Figure 4 This is a three-dimensional structural diagram of the outer shell of an embodiment of the present utility model;

[0024] Figure 5 This is an exploded view of a camera in the mechanical compartment of a rail transit locomotive according to an embodiment of this utility model.

[0025] Explanation of reference numerals in the attached drawings: 100, outer casing; 110, first receiving space; 120, second threaded hole; 130, first boss; 140, fixing post; 150, heat dissipation fins; 200, sealing cap; 210, first threaded hole; 220, first annular wall; 221, protrusion; 222, microphone; 223, protrusion; 230, transparent viewing window; 231, recess; 300, camera; 400, supplementary lighting assembly; 410, first circuit board; 420, supplementary light; 430, light sensor; 500, camera motherboard; 600, main control motherboard. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0027] As an embodiment of the camera in the machine room of the rail transit locomotive described in this utility model, such as Figures 1 to 5 As shown, the device includes a housing 100, a sealing cap 200, a circuit assembly, a camera 300, and a supplementary lighting assembly 400. The housing 100 is a container with an opening on one side, which is a first opening. The interior of the housing 100 has a first accommodating space 110. The circuit assembly is disposed in the first accommodating space 110. The sealing cap 200 is fixedly installed at the first opening to seal the first accommodating space 110. The camera 300 is fixedly installed based on the circuit assembly and passes through the sealing cap 200. The supplementary lighting assembly 400 includes a first circuit board 410 and a plurality of supplementary lights 420. The first circuit board 410 is fixedly installed with the sealing cap 200. The supplementary lights 420 are fixedly installed on the first circuit board 410 and the plurality of supplementary lights 420 are evenly distributed around the camera 300.

[0028] In one specific embodiment, the outer casing 100 serves as the main protective structure for the camera in the mechanical compartment of a rail transit locomotive. It adopts a container design with one open side, facilitating the installation and maintenance of internal circuit components. The first accommodating space 110 provides a stable installation environment for the circuit components, effectively preventing damage from external dust and moisture. The shape of the sealing cover 200 matches the shape of the first opening. Each of the four corners of the sealing cover 200 has a first threaded hole 210, and each of the four corners of the first opening has a second threaded hole 120. Screws are used to fix the sealing cover 200 to the first opening through the first threaded holes 210 and the second threaded holes 120, ensuring the sealing of the first accommodating space 110. The circuit components are the core of the camera 300's various functions, responsible for signal processing, data transmission, etc. A circular through-hole is located at the center of the sealing cover 200. The camera 300 passes through this through-hole to capture monitoring images. The side of the camera 300 furthest from the sealing cover 200 is fixedly connected to the circuit components to transmit the captured image information to the circuit components for processing. In the supplementary lighting assembly 400, the first circuit board 410 provides power and control signals to the supplementary light 420. The first circuit board 410 is fixedly installed on the side of the sealing cover 200 away from the first receiving space 110. The supplementary light 420 is fixedly installed based on the first circuit board 410 and several supplementary lights 420 are evenly distributed around the camera 300. When the light is insufficient, it can provide uniform light supplement to the shooting area of ​​the camera 300, avoiding the situation where the image is too dark or too bright in some areas.

[0029] In summary, the cooperation between the outer casing 100 and the sealing cover 200 ensures the safety and stability of the internal circuit components and extends the service life of the camera 300. Secondly, the inclusion of the supplementary lighting component 400 effectively solves the problem of unclear imaging in low-light environments, ensuring clear monitoring images whether on a dark street or in dimly lit indoor spaces. Furthermore, the modular design facilitates the installation, disassembly, and replacement of components, reducing maintenance costs and improving the product's versatility and scalability.

[0030] like Figure 2 As shown, the camera in the mechanical compartment of the rail transit locomotive also includes a first ring wall 220, which is located on the side of the sealing cover 200 away from the first accommodating space 110. The camera 300 and the supplementary lighting component 400 are located in the space enclosed by the first ring wall 220.

[0031] In one specific embodiment, the first annular wall 220 is a ring-shaped structure disposed on the outside of the sealing cover 200, surrounding the camera 300 and the supplementary lighting component 400 to form a relatively independent spatial area. The first annular wall 220 can be integrally formed with the sealing cover 200 by injection molding, or it can be fixed to the sealing cover 200 by welding, screw connection, or other methods. The first annular wall 220 has two main functions: firstly, it can provide physical protection for the camera 300 and the supplementary lighting component 400, preventing external objects from directly colliding with the camera 300 and the supplementary lighting component 420, reducing the risk of damage caused by external forces; secondly, it can constrain and guide the light emitted by the supplementary lighting component 420 to a certain extent, preventing the light from scattering in unnecessary directions, so that the light is more concentrated and projected onto the shooting area, improving the supplementary lighting efficiency.

[0032] In summary, by incorporating the first ring wall 220, the protective performance and supplementary lighting effect of the camera in the mechanical compartment of rail transit locomotives are significantly improved. In practical applications, such as outdoor surveillance cameras, which may face wind, sand, rain, and accidental collisions, the first ring wall 220 effectively blocks these external factors from damaging the core components. Simultaneously, its light-constraining effect allows the supplementary lighting 420 to provide more sufficient and effective light to the camera 300 with the same energy consumption, further ensuring the clarity and quality of the surveillance footage in complex lighting environments and enhancing the product's market competitiveness.

[0033] like Figure 2 As shown, the first ring wall 220 protrudes towards the camera 300 to form a protrusion 221. The rail transit locomotive mechanical room camera also includes a microphone 222, which is fixedly installed at the position of the protrusion 221.

[0034] In one specific embodiment, the protrusion 221 is the portion of the first annular wall 220 that protrudes towards the camera 300, providing specific space for the installation of the microphone 222. As an audio acquisition device, the microphone 222, fixedly mounted on the protrusion 221, can be closer to the sound source, improving the sensitivity and clarity of audio acquisition. Placing the microphone 222 in this position utilizes the structural advantages of the protrusion 221 to create a reasonable spatial arrangement between the microphone 222 and the camera 300, without affecting the normal operation of the camera 300 and the supplementary lighting component 400; furthermore, the protrusion 221 can provide some protection for the microphone 222.

[0035] In summary, by incorporating a microphone 222 into the protrusion 221, synchronous audio and video monitoring is achieved, significantly expanding the product's application scenarios. In home security scenarios, users can not only view their home through the camera 300 but also hear indoor sounds, promptly detecting any unusual noises. In commercial surveillance fields, such as shops and warehouses, synchronous audio and video recording can provide more comprehensive and accurate evidence for dispute resolution and security incident tracing. Furthermore, the rational layout design ensures that the components do not interfere with each other.

[0036] like Figure 3 As shown, the camera in the mechanical compartment of the rail transit locomotive also includes a transparent viewing window 230, which is embedded in the inner periphery of the first annular wall 220 to seal the space enclosed by the first annular wall 220.

[0037] In one specific embodiment, the transparent window panel 230 is a plate-shaped component made of a transparent material (such as optical-grade acrylic, glass, etc.). Its shape is adapted to the inner circumference of the first annular wall 220, and it is installed inside the first annular wall 220 by embedding, thus sealing the space enclosed by the first annular wall 220. The main function of the transparent window panel 230 is to protect the internal camera 300 and the supplementary lighting component 400 from dust, moisture, etc., while not affecting the shooting of the camera 300 and the light transmission of the supplementary lighting 420. It provides a relatively sealed and clean working environment for the internal components, extends the service life of the components, and ensures the long-term stable operation of the camera in the mechanical room of the rail transit locomotive.

[0038] The transparent viewing window 230 significantly enhances the protective performance and reliability of the camera in the mechanical compartment of rail transit locomotives. In humid and dusty outdoor environments, the transparent viewing window 230 effectively blocks moisture and dust, preventing the camera lens from being affected by moisture and dust accumulation, thus ensuring image quality.

[0039] like Figure 3 As shown, the transparent window panel 230 has a recessed portion 231, which matches the protrusion 221.

[0040] In one specific embodiment, the recess 231 is an inwardly recessed structure provided on the transparent window panel 230, the shape and size of which correspond to the protrusion 221 of the first annular wall 220, and the two match each other. When the transparent window panel 230 is embedded in the first annular wall 220, the recess 231 can fit tightly with the protrusion 221, further enhancing the stability and sealing of the transparent window panel 230 installation.

[0041] like Figure 3As shown, the circuit assembly includes a camera motherboard 500 and a main control motherboard 600. The camera motherboard 500 and the main control motherboard 600 are spaced apart and electrically connected. By dividing the circuit assembly into two parts, the camera motherboard 500 and the main control motherboard 600, heat generation can be reduced.

[0042] In one specific embodiment, the camera motherboard 500 is mainly responsible for the functional control and signal processing related to the camera 300, such as image acquisition and encoding. The camera motherboard 500 is fixedly installed to the sealing cover 200 with screws, and the camera 300 is fixed at the center of the camera motherboard 500. The main control motherboard 600 undertakes the core control tasks of the entire rail transit locomotive mechanical room camera, including data storage, network transmission, and communication with external devices. The main control motherboard 600 is fixedly installed to the bottom of the housing 100 with screws. Dividing the circuit components into two independent motherboards and setting them apart avoids the problem of local overheating caused by over-concentration of functions. The two motherboards are electrically connected through ribbon cables, connectors, etc., to ensure normal data and signal transmission. This split design allows heat to be dissipated more widely and also facilitates targeted heat dissipation design and maintenance for each motherboard.

[0043] In summary, the separate design of this circuit assembly offers significant advantages in heat dissipation and maintenance convenience. Under prolonged continuous operation, traditional integrated circuits are prone to performance degradation or even failure due to heat accumulation. This design, by distributing heat, effectively reduces the circuit's operating temperature, improving the stability and reliability of the device. Furthermore, when a motherboard malfunctions, repair personnel can more quickly locate the problem and replace it without the need for complex repairs of the entire circuit assembly, greatly reducing repair difficulty and costs.

[0044] like Figure 4 As shown, the bottom of the outer casing 100 protrudes into the first receiving space 110 to form a first protrusion 130. The first protrusion 130 is in contact with the main control motherboard 600 to facilitate heat dissipation for the main control motherboard 600.

[0045] In one specific embodiment, the first protrusion 130 is a structure that protrudes inward from the bottom of the outer casing 100. Its shape and size are adapted to the main control motherboard 600. The main control motherboard 600 is equipped with a processing chip to process data. The processing chip is the main heat source. The first protrusion 130 can be tightly attached to the surface of the corresponding processing chip on the main control motherboard 600. The first protrusion 130 is usually made of a metal material with good thermal conductivity (such as aluminum, copper, etc.) so as to quickly conduct the heat generated by the processing chip when it is working to the outer casing 100, and then achieve heat dissipation through heat exchange between the outer casing 100 and the outside air.

[0046] In summary, the placement of the first protrusion 130 significantly improves the heat dissipation performance of the camera in the mechanical compartment of the rail transit locomotive. As a core control component, the main control motherboard 600 generates a large amount of heat during operation; failure to dissipate this heat promptly will severely impact equipment performance. The efficient heat conduction of the first protrusion 130 rapidly reduces the temperature of the main control motherboard 600, ensuring it operates within its normal operating temperature range, thereby improving the overall stability of the camera in the mechanical compartment of the rail transit locomotive.

[0047] like Figure 4 As shown, a fixing post 140 is provided on the side of the first boss 130. The fixing post 140 is provided with a threaded hole. The fixing post 140 is perpendicular to the center position of the main control motherboard 600. Screws pass through the main control motherboard 600 and the fixing post 140 for threaded assembly, so that the main control motherboard 600 and the first boss 130 can fit tightly together.

[0048] like Figure 5 As shown, the bottom of the outer casing 100 is provided with several heat dissipation fins 150 to further dissipate heat from the main control motherboard 600.

[0049] In one specific embodiment, the heat dissipation fins 150 are sheet-like structures disposed at the bottom of the housing 100, and are typically integrally formed with the housing 100. The heat dissipation fins 150 are arranged in a multi-layer matrix, increasing the contact area between the housing 100 and the air, thereby enhancing heat exchange efficiency and dissipating the heat conducted from the main control motherboard 600 to the housing 100 more quickly into the surrounding environment. Under natural convection conditions, the heat dissipation fins 150 can significantly improve heat dissipation, ensuring that the main control motherboard 600 is always at a reasonable operating temperature.

[0050] In summary, the addition of heat dissipation fins 150 further enhances the heat dissipation capacity of the camera in the mechanical compartment of rail transit locomotives, providing a larger surface area and stronger air circulation channels for heat dissipation, effectively solving the problem of heat accumulation.

[0051] like Figure 2 As shown, the outer periphery of the first ring wall 220 is provided with several protrusions 223. The protrusions 223 are integrally formed with the first ring wall 220. The protrusions 223 are used to dissipate heat for the camera 300 and also serve a decorative purpose.

[0052] In one specific embodiment, the protrusion 223 is a strip-shaped protrusion structure disposed on the outer periphery of the first annular wall 220, and is integrally manufactured with the first annular wall 220 by injection molding or other molding processes. The protrusion 223 not only increases the surface area of ​​the first annular wall 220, which helps the heat generated by the camera 300 during operation to be conducted through the first annular wall 220 to the protrusion 223 and then dissipated into the air, thus achieving an auxiliary heat dissipation function; at the same time, its unique appearance can also add a sense of design to the camera in the mechanical room of rail transit locomotives, enhance the visual effect of the product, and make the product more recognizable and attractive in appearance.

[0053] In summary, the design of the raised strip 223 achieves a perfect balance between functionality and aesthetics. In practical use, the camera 300 generates heat during prolonged operation; the heat dissipation function of the raised strip 223 effectively reduces the camera 300's temperature, ensuring stable shooting performance. As for appearance, the diverse shapes of the raised strip 223 can meet users' aesthetic needs. Whether applied in home, commercial, or industrial settings, it allows the camera in the rail transit locomotive machinery room to better integrate into the environment while showcasing the product's unique design style.

[0054] like Figure 2 As shown, the supplementary lighting assembly 400 also includes a light sensor 430, which is fixedly mounted on the first circuit board 410.

[0055] In one specific embodiment, the light sensor 430 is an electronic component capable of sensing the intensity of ambient light, and is fixedly mounted on the first circuit board 410 of the supplementary lighting assembly 400. The light sensor 430 monitors the ambient light brightness in real time, converts the light signal into an electrical signal, and transmits it to the circuit assembly for analysis and processing. When the ambient light is below a preset threshold, the circuit assembly controls the supplementary lighting lamp 420 to automatically turn on and adjust to a suitable brightness; when the light is sufficient, the supplementary lighting lamp 420 automatically turns off, realizing intelligent control of the supplementary lighting function.

[0056] In summary, the addition of the light sensor 430 endows the rail transit locomotive engine room camera with intelligent supplementary lighting capabilities, enhancing the product's practicality and energy efficiency. In practical applications, regardless of changes in natural light from day to night or switching between different indoor and outdoor lighting conditions, the rail transit locomotive engine room camera can automatically adjust its supplementary lighting according to the ambient light without manual intervention, ensuring that the monitored image remains clear at all times. Simultaneously, the automatic control of the supplementary light 420's on / off state and brightness avoids unnecessary activation of the supplementary light 420, reducing energy consumption and aligning with the trend of energy conservation and environmental protection, thereby improving the product's market adaptability and user satisfaction.

[0057] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An inter-bay camera for a rail transit locomotive, comprising: include: Housing, sealing cap, circuit components, camera and lighting components; The outer shell is a container with an opening on one side, the opening being a first opening, and the interior of the outer shell has a first accommodating space, in which the circuit assembly is disposed; The sealing cap is fixedly installed at the first opening to seal the first accommodating space; The camera is fixedly mounted based on the circuit assembly, and the camera penetrates through the sealing cover; The supplementary lighting component includes a first circuit board and a plurality of supplementary lights. The first circuit board is fixedly installed with the sealing cover, and the supplementary lights are fixedly installed on the first circuit board and the plurality of supplementary lights are evenly distributed around the camera.

2. The mechanical compartment camera of rail transit locomotive according to claim 1, characterized in that, The camera in the mechanical compartment of the rail transit locomotive also includes a first ring wall, which is located on the side of the sealing cover away from the first accommodating space, and the camera and the supplementary lighting component are located in the space enclosed by the first ring wall.

3. The camera in the engine room of a rail transit locomotive according to claim 2, characterized in that, The first ring wall protrudes towards the camera to form a protrusion. The camera in the mechanical room of the rail transit locomotive also includes a microphone, which is fixedly installed at the position of the protrusion.

4. The mechanical compartment camera of rail transit locomotive according to claim 3, characterized in that, The camera in the mechanical compartment of the rail transit locomotive also includes a transparent viewing window panel, which is embedded in the inner circumference of the first annular wall to seal the space enclosed by the first annular wall.

5. The mechanical compartment camera of rail transit locomotive according to claim 4, characterized in that, The transparent window panel has a recessed portion that matches the protrusion.

6. The camera in the engine room of a rail transit locomotive according to claim 1, characterized in that, The circuit assembly includes a camera motherboard and a main control motherboard, which are spaced apart and electrically connected. Dividing the circuit assembly into two parts, the camera motherboard and the main control motherboard, helps to reduce heat generation.

7. The camera in the engine room of a rail transit locomotive according to claim 6, characterized in that, The bottom of the outer casing protrudes towards the first accommodating space to form a first protrusion, which fits against the main control motherboard to facilitate heat dissipation for the main control motherboard.

8. The camera in the engine room of a rail transit locomotive according to claim 7, characterized in that, The bottom of the outer casing is provided with several heat dissipation fins to further dissipate heat from the main control motherboard.

9. The mechanical compartment camera of rail transit locomotive according to claim 2, wherein, The outer periphery of the first ring wall is provided with a plurality of protrusions, which are integrally formed with the first ring wall. The protrusions are used to dissipate heat for the camera and also serve a decorative purpose.

10. The mechanical compartment camera of rail transit locomotive according to claim 1, wherein, The supplemental lighting component also includes a light sensor, which is fixedly mounted on the first circuit board.