Road condition camera for rail transit locomotive

By dividing the circuit components of the rail transit locomotive road condition camera into a camera motherboard and a main control motherboard, and adopting a design with metal bosses and heat dissipation fins, the performance degradation problem caused by heat concentration in the surveillance camera is solved, and the heat dissipation efficiency and service life are improved.

CN224191994UActive 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 rail transit locomotive condition monitoring cameras integrate all functions onto a single circuit board, resulting in the generation of a large amount of heat during prolonged operation, which affects performance and lifespan.

Method used

The circuit components are divided into two parts: the camera motherboard and the main control motherboard. They are arranged in parallel intervals and are cooled by metal bosses and heat sinks with good thermal conductivity. Combined with a sealed design, the internal components are protected.

Benefits of technology

It effectively disperses heat, prevents excessive heat concentration, and improves the heat dissipation efficiency and lifespan of surveillance cameras.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224191994U_ABST
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Abstract

The utility model relates to a road condition camera for a rail transit locomotive, which comprises an outer shell, a plugging cover, a camera and a circuit assembly, the outer shell is a container with an opening on one side, a first accommodating space is arranged in the outer shell, the plugging cover is matched with the opening in shape, and the plugging cover is fixedly mounted at the opening to plug the first accommodating space. The circuit assembly is arranged in the first containing space and comprises a camera shooting main board and a main control main board, the camera shooting main board and the main control main board are arranged in parallel in a spaced mode, the camera shooting main board is electrically connected with the main control main board, and the camera is electrically connected with the camera shooting main board. The problems that all functions of a traditional monitoring camera are integrated on one circuit board, a large amount of heat is easily generated in the working process, the performance of the monitoring camera is reduced, and the service life of the monitoring camera is shortened are 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 road condition camera for rail transit locomotives. Background Technology

[0002] With the rapid development of society, the monitoring and management of safety hazards has become increasingly important. In many places, such as factories, warehouses, and public places, comprehensive security checks are required to ensure the safety of personnel and property, making surveillance cameras an indispensable safeguard.

[0003] Traditional rail transit locomotive condition monitoring cameras typically integrate all functions onto a single circuit board, which causes the cameras to generate a lot of heat during prolonged operation, leading to a decline in performance and a reduction in lifespan. Utility Model Content

[0004] This application provides a rail transit locomotive road condition camera, which aims to solve the problem that traditional surveillance cameras, which integrate all functions onto a single circuit board, tend to generate a lot of heat during operation, leading to a decrease in the performance and lifespan of the surveillance camera.

[0005] To solve the above-mentioned technical problems, this application proposes a rail transit locomotive road condition camera, including: a housing, a sealing cover, a camera, and circuit components;

[0006] The outer shell is a container with an opening on one side, and the interior of the outer shell has a first receiving space. The sealing cap matches the shape of the opening and is fixedly installed at the opening to seal the first receiving space.

[0007] The circuit assembly is disposed in the first accommodating space. The circuit assembly includes a camera motherboard and a main control motherboard. The camera motherboard and the main control motherboard are arranged in parallel and spaced apart. The camera motherboard is electrically connected to the main control motherboard, and the camera is electrically connected to the camera motherboard.

[0008] The bottom of the outer casing protrudes towards the first accommodating space to form a first protrusion, and the center of the first protrusion protrudes towards the main control motherboard to form a second protrusion. The area of ​​the first protrusion is larger than the area of ​​the second protrusion.

[0009] The main control motherboard is equipped with a main control chip, and the second protrusion abuts against the position on the main control motherboard corresponding to the main control chip.

[0010] The second boss has a fixing post at its edge, and the fixing post has a first threaded hole. The fixing post corresponds to the center position of the main control motherboard. The screw passes through the main control motherboard and is threaded into the first threaded hole, so that the main control motherboard and the second boss fit tightly together.

[0011] The bottom of the outer shell is provided with a plurality of heat dissipation fins corresponding to the positions of the first and second protrusions, and the heat dissipation fins are distributed in a matrix.

[0012] The sealing cover has an installation groove on the edge of the side near the outer shell, and a sealing gasket is provided in the installation groove.

[0013] The sealing cover has a through hole at its center, one end of the camera is fixedly connected to the camera motherboard, and the other end of the camera passes through the through hole.

[0014] The sealing cover includes a first annular wall that surrounds the camera, and the rail transit vehicle road condition camera also includes a transparent viewing window that is embedded in the inner circumference of the first annular wall.

[0015] The sealing cover also includes a dustproof plate, which surrounds the first annular wall.

[0016] The beneficial effects of this application are as follows: The rail transit locomotive road condition camera provided in this application includes a housing, a sealing cover, a camera, and circuit components. The housing is a container with an opening on one side, and the interior of the housing has a first accommodating space. The sealing cover matches the shape of the opening and is fixedly installed at the opening to seal the first accommodating space. The circuit components are located in the first accommodating space and include a camera main board and a main control main board. The camera main board and the main control main board are arranged parallel and spaced apart, and are electrically connected. The camera is electrically connected to the camera main board. By dividing the circuit components into the camera main board and the main control main board, the heat generated during the operation of the device is effectively dispersed, preventing excessive heat concentration. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the rail transit locomotive road condition camera according to an embodiment of the present utility model;

[0018] Figure 2 This is an exploded view of the rail transit locomotive road condition camera according to an embodiment of this utility model;

[0019] Figure 3 This is an exploded view of the rail transit locomotive road condition camera from another perspective according to an embodiment of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the outer shell of an embodiment of the present utility model.

[0021] Explanation of reference numerals in the attached drawings: 100, outer casing; 110, opening; 120, first receiving space; 130, first boss; 140, second boss; 150, fixing post; 160, heat dissipation fins; 200, sealing cover; 210, mounting groove; 220, through hole; 230, first annular wall; 300, camera; 410, camera motherboard; 420, main control motherboard; 500, sealing gasket; 600, transparent window panel; 700, dustproof plate. Detailed Implementation

[0022] 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.

[0023] As an embodiment of the rail transit locomotive road condition camera described in this utility model, such as Figures 1 to 4 As shown, the device includes a housing 100, a sealing cap 200, a camera 300, and circuit components. The housing 100 is a container with an opening 110 on one side. The interior of the housing 100 has a first accommodating space 120. The sealing cap 200 matches the shape of the opening 110 and is fixedly installed at the opening 110 to seal the first accommodating space 120. The circuit components are disposed in the first accommodating space 120. The circuit components include a camera motherboard 410 and a main control motherboard 420. The camera motherboard 410 and the main control motherboard 420 are arranged in parallel and spaced apart. The camera motherboard 410 and the main control motherboard 420 are electrically connected. The camera 300 is electrically connected to the camera motherboard 410.

[0024] In one specific embodiment, the outer casing 100 serves as the main structure of the rail transit locomotive road condition camera 300. Its container shape with an opening 110 provides installation space for internal components. The first accommodating space 120 is used to accommodate the core circuit components, ensuring their normal operation. The sealing cover 200 fits the shape of the opening 110 of the outer casing 100 and is tightly installed at the opening 110 using screws, snap-fit ​​connections, etc., sealing the first accommodating space 120 and protecting the internal components from external impurities. The circuit components are the core functional modules of the monitoring camera 300. The camera motherboard 410 is responsible for signal processing and encoding of the camera 300's image acquisition, while the main control motherboard 420 undertakes core tasks such as data storage, network transmission, and system control. The two are arranged in parallel intervals. This layout increases the heat dissipation area, avoiding localized overheating caused by concentrated heat. Simultaneously, electrical connections are achieved through ribbon cables, connectors, etc., ensuring stable data and signal transmission. The camera 300 is connected to the camera motherboard 410 and transmits the captured image information to the camera motherboard 410 for processing.

[0025] like Figure 4 As shown, in one specific embodiment, the first protrusion 130 is a structure that protrudes inward from the bottom of the outer casing 100. The second protrusion 140 is located at the center of the first protrusion 130 and protrudes further towards the main control motherboard 420. Its design purpose is to more precisely fit the key parts of the main control motherboard 420 that generate a lot of heat, such as the main control chip. The area of ​​the first protrusion 130 is larger than that of the second protrusion 140. This design not only ensures basic heat dissipation over a large area, but also achieves focused heat dissipation of the core heat-generating area through the second protrusion 140. The two protrusions are usually made of metal materials with good thermal conductivity, such as aluminum or copper, to quickly transfer heat away by utilizing the good thermal conductivity of metals.

[0026] like Figure 3 As shown, in one specific embodiment, the main control chip is the core component of the main control motherboard 420, responsible for processing a large amount of data and control commands, and generating a large amount of heat during operation. The second protrusion 140 is in close contact with the main control chip, i.e., tightly fitted. This design allows the heat generated by the main control chip to be directly conducted away through the second protrusion 140. In actual installation, thermal grease is applied to the contact surface between the second protrusion 140 and the main control chip to further enhance heat conduction efficiency. Through precise structural design, heat can be quickly transferred from the main control chip to the second protrusion 140, and then dissipated to the external environment via the first protrusion 130 and the outer casing 100.

[0027] like Figure 4As shown, in one specific embodiment, the fixing post 150 is disposed on the edge of the second boss 140 and is a structural component used to fix the main control motherboard 420. Its internal first threaded hole provides a threaded connection base for screw installation. By inserting a screw through the center of the main control motherboard 420 and threading it into the first threaded hole, the main control motherboard 420 can be firmly fixed to the second boss 140, ensuring close contact between the main control motherboard 420 and the second boss 140 and reducing the air gap between them. Because air is a poor conductor of heat, close contact can effectively improve heat conduction efficiency, allowing the heat generated by the main control motherboard 420 to be transferred more smoothly to the second boss 140.

[0028] like Figure 3 As shown, in one specific embodiment, the heat dissipation fins 160 are sheet-like structures mounted on the bottom of the housing 100, typically made of metal and possessing good thermal conductivity. They are distributed in a matrix pattern at positions corresponding to the first protrusion 130 and the second protrusion 140, increasing the contact area between the housing 100 and the air, accelerating airflow between the fins, and thus enhancing heat exchange efficiency. The matrix distribution design allows air to flow more evenly across the heat dissipation fins 160, improving the uniformity and efficiency of heat dissipation. Under natural convection, as air flows between the fins, it continuously carries away heat from the fins, dissipating the heat transferred from the main control motherboard 420 to the housing 100 more quickly into the surrounding environment.

[0029] like Figure 3 As shown, in one specific embodiment, the mounting groove 210 is a recessed structure provided on the edge of the sealing cover 200 near the outer casing 100, and its function is to provide installation space for the sealing gasket 500. The sealing gasket 500 is generally made of elastic materials such as rubber and has good sealing performance. When the sealing cover 200 is installed at the opening 110 of the outer casing 100, the sealing gasket 500 is compressed and deformed, filling the gap between the sealing cover 200 and the outer casing 100, preventing external dust, moisture and other impurities from entering the first receiving space 120, and protecting the internal circuit components and camera 300.

[0030] like Figure 3 As shown, in one specific embodiment, the through hole 220 is a circular hole located at the center of the sealing cover 200, and its size is adapted to the outer diameter of the camera 300. One end of the camera 300 is firmly connected to the camera motherboard 410 by welding, screw fixing, or other methods to achieve electrical connection and mechanical fixation; the other end passes through the through hole 220 and extends to the outside of the sealing cover 200 for capturing monitoring images. The through hole 220 ensures the accuracy of the camera 300's installation position and provides a channel for the camera 300 to pass through the sealing cover 200, enabling the camera 300 to work normally, while not affecting the sealing effect of the sealing cover 200 on the first receiving space 120.

[0031] like Figure 2 As shown, in one specific embodiment, the first annular wall 230 is a ring-shaped structure surrounding the camera 300 on the sealing cover 200, providing support and a fixed base for the installation of the transparent viewing window 600. The transparent viewing window 600 is made of transparent optical materials, such as optical-grade acrylic or glass, and its shape matches the inner circumference of the first annular wall 230, being installed within the first annular wall 230 by embedding. The main function of the transparent viewing window 600 is to protect the camera 300 from dust, moisture, etc., while not affecting the camera 300's field of view, ensuring that light can pass smoothly through the viewing window and enter the camera 300. The combination of the first annular wall 230 and the transparent viewing window 600 creates a relatively sealed and clean working environment for the camera 300.

[0032] like Figure 2 As shown, in one specific embodiment, the dustproof plate 700 is a cap-shaped structure disposed around the first annular wall 230, typically made of plastic or metal. Its main function is to further enhance the protection of the camera 300 and the transparent window plate 600, preventing external dust and rainwater from directly contacting the transparent window plate 600 and the first annular wall 230, and reducing the possibility of dust entering the gap between the first annular wall 230 and the transparent window plate 600. The dustproof plate 700 can be installed on the sealing cover 200 by means of snap-fit ​​connection, screw fixing, etc., forming a multi-layered protective structure together with the first annular wall 230 and the transparent window plate 600.

[0033] 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. A rail transit vehicle road condition camera, characterized in that, include: Housing, sealing cap, camera, circuit components; The outer shell is a container with an opening on one side, and the interior of the outer shell has a first receiving space. The sealing cap matches the shape of the opening and is fixedly installed at the opening to seal the first receiving space. The circuit assembly is disposed in the first accommodating space. The circuit assembly includes a camera motherboard and a main control motherboard. The camera motherboard and the main control motherboard are arranged in parallel and spaced apart. The camera motherboard is electrically connected to the main control motherboard, and the camera is electrically connected to the camera motherboard.

2. The rail transit locomotive condition camera according to claim 1, characterized in that, The bottom of the outer casing protrudes towards the first accommodating space to form a first protrusion, and the center of the first protrusion protrudes towards the main control motherboard to form a second protrusion. The area of ​​the first protrusion is larger than the area of ​​the second protrusion.

3. The rail transit locomotive condition camera according to claim 2, characterized in that, The main control motherboard is equipped with a main control chip, and the second protrusion abuts against the position on the main control motherboard corresponding to the main control chip.

4. The rail transit locomotive condition camera according to claim 3, characterized in that, A fixing post is provided at the edge of the second boss, and a first threaded hole is provided on the fixing post. The fixing post corresponds to the center position of the main control motherboard. The screw passes through the main control motherboard and is threadedly assembled with the first threaded hole, so that the main control motherboard and the second boss fit tightly together.

5. The rail transit locomotive condition camera according to claim 4, characterized in that, The bottom of the outer casing is provided with a plurality of heat dissipation fins corresponding to the positions of the first and second protrusions, and the heat dissipation fins are distributed in a matrix.

6. The rail transit locomotive condition camera according to claim 1, characterized in that, The sealing cap has a mounting groove on the edge of the side near the outer shell, and a sealing gasket is provided in the mounting groove.

7. The rail transit locomotive condition camera according to claim 1, characterized in that, The sealing cap has a through hole at its center. One end of the camera is fixedly connected to the camera motherboard, and the other end of the camera passes through the through hole.

8. The rail transit locomotive condition camera according to claim 1, characterized in that, The sealing cover includes a first annular wall surrounding the camera, and the rail transit vehicle road condition camera also includes a transparent viewing window panel embedded in the inner circumference of the first annular wall.

9. The rail transit locomotive condition camera according to claim 8, characterized in that, The sealing cap also includes a dustproof plate surrounding the first annular wall.