Vehicle-mounted controller cabinet installed under train seat

Abstract

The invention relates to a vehicle-mounted controller cabinet installed under train seats, an air outlet is installed on a top plate and a cabinet body, an L-shaped air duct is installed on the cabinet body, the L-shaped air duct comprises a first air duct and a second air duct, the first air duct and the second air duct are connected and perpendicular to each other, the first air duct is perpendicular to the top plate, and the second air duct is perpendicular to the top plate. The fan disc is installed on the second air channel, the first air channel is connected with the air inlet, the first isolation plate is installed in the cabinet body and is parallel to the top plate, and the vehicle-mounted controller host is connected with the first isolation plate and the fan disc. Air sequentially passes through the air inlet, the first air channel, the second air channel, the fan disc, the vehicle-mounted controller host, the first isolation plate and the air outlet. By arranging the L-shaped air channel and the fan disc, the air flowing direction is changed from the horizontal direction to the vertical direction, air can pass through the vehicle-mounted controller host in a vertical mode, air flowing is smoother, heat dissipation of the vehicle-mounted controller host is better facilitated, and the heat dissipation effect is better.

Description

Technical Field

[0001] The invention relates to the technical field of a vehicle-mounted controller cabinet, and in particular to a vehicle-mounted controller cabinet installed under a train seat. Background Art

[0002] The urban rail transit industry is developing rapidly. With the increasing maturity of subway unmanned driving technology, the driver's cab on the subway vehicle has been cancelled, and the original electrical equipment cabinets on the vehicle have also been reduced accordingly. The problem that follows is that the on-board equipment needs to find new installation space. As the brain of train operation control, the on-board controller has the characteristics of large size, high heat generation, and many connecting cables. Generally, the on-board controller, fan tray, supporting equipment, connectors and cables are installed together in a cabinet to form an on-board controller cabinet. At present, the equipment in the on-board controller cabinet is stacked up and down, and the cabinet adopts a cooling mode of up and down ventilation. A certain space needs to be reserved at the bottom and top of the cabinet for cabinet air inlet and outlet, so the cabinet requires a large installation space. The on-board controller cabinet has always been installed in the vehicle's electrical cabinet. A set of on-board controller cabinets will be installed at the front and rear of the car. Therefore, the whole vehicle needs two electrical cabinets, and the electrical cabinet is large in size and occupies a large space in the vehicle, which correspondingly reduces the space for passengers and has a certain impact on the train's transportation capacity.

[0003] The utility model patent with publication number CN204835216U discloses an electrical cabinet for urban rail vehicle seats, the electrical cabinet comprising a plurality of cabinet frame beams and a plurality of horizontally arranged seat mounting beams; the plurality of cabinet frame beams and the seat mounting beams are connected to form a cabinet frame structure, and the seat mounting beams are located on the upper bottom surface of the cabinet frame structure; a side surface of the cabinet frame structure is provided with a mounting panel for mounting electrical components. Although this patent realizes the installation of the electrical cabinet under the seat, the equipment in the electrical cabinet needs to dissipate heat, but it is difficult to inhale or exhaust air above and below the electrical cabinet, so air can only be inhaled or exhausted on the left or right side; at the same time, due to the installation method of some equipment in the electrical cabinet, it is best to let the air flow pass through the equipment from bottom to top to better remove the heat.

[0004] Therefore, it is an urgent problem to provide a vehicle-mounted controller cabinet that has air inlet and outlet on the left and right sides of the cabinet and can change the air flow direction. Summary of the invention

[0005] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and provide a vehicle-mounted controller cabinet installed under the train seat.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] According to one aspect of the present invention, there is provided an on-board controller cabinet installed under a train seat, the cabinet changing the air flow direction for heat dissipation of the on-board controller host, the cabinet comprising a cabinet body, an air inlet, a top plate, a first isolation plate and a fan disk, the air inlet and the top plate being installed on the cabinet body, the cabinet further comprising an L-shaped air duct and an air outlet, the air outlet being installed on the top plate and the cabinet body, the L-shaped air duct being installed on the cabinet body, the L-shaped air duct comprising a first air duct and a second air duct, the first air duct and the second air duct being connected and perpendicular, the first air duct and the top plate being perpendicular, the fan disk being installed on the second air duct, the first air duct being connected to the air inlet, the first isolation plate being installed in the cabinet body and parallel to the top plate, the on-board controller host being respectively connected to the first isolation plate and the fan disk, the air passing through the air inlet, the first air duct, the second air duct, the fan disk, the on-board controller host, the first isolation plate and the air outlet in sequence.

[0008] As a preferred technical solution, the L-shaped air duct is an L-shaped air duct formed by welding air duct isolation plates.

[0009] As a preferred technical solution, the L-shaped air duct also includes a first air duct opening and a second air duct opening, the first air duct opening is installed on the first air duct, the second air duct opening is installed on the second air duct, the first air duct opening is connected to the air inlet, and the second air duct opening is connected to the fan disk.

[0010] As a preferred technical solution, the cabinet also includes a second isolation plate, which is centrally installed in the cabinet and perpendicular to the long side of the cabinet, the second isolation plate is connected to the top plate, the first isolation plate and the second isolation plate are perpendicular and connected, and the second isolation plate divides the cabinet into a first cabinet and a second cabinet.

[0011] As a preferred technical solution, the cabinet further includes a first cabinet door, a second cabinet door and a third cabinet door, the first cabinet door and the second cabinet door are installed on the first cabinet body, and the third cabinet door is installed on the second cabinet body.

[0012] As a preferred technical solution, the cabinet further includes a single-point lock, a handle, tempered glass and a tempered glass fixing frame, the single-point lock and the handle are installed on the first cabinet door, and the tempered glass is installed on the first cabinet door via the tempered glass fixing frame.

[0013] As a preferred technical solution, the cabinet also includes a mounting plate, which is centrally installed on the second cabinet and parallel to the long side of the cabinet. The mounting plate is respectively connected to the second isolation plate and the top plate. The mounting plate divides the second cabinet into a third cabinet and a fourth cabinet, and the fourth cabinet is connected to the first cabinet.

[0014] As a preferred technical solution, the cabinet further includes an internal wire binding rack and an external wire binding rack, the internal wire binding rack is installed in the fourth cabinet, and the external wire binding rack is installed in the third cabinet.

[0015] As a preferred technical solution, the air outlet includes a first air outlet and a second air outlet, the first air outlet is installed on the top plate, and the second air outlet is installed on the fourth cabinet.

[0016] As a preferred technical solution, the second air outlet is an air outlet in the form of a shutter.

[0017] As a preferred technical solution, the first air outlet is connected to the fourth cabinet.

[0018] As a preferred technical solution, the cabinet further comprises a communication connector, a network connector, an external connector and a DIN rail, and the communication connector, the network connector, the external connector and the DIN rail are mounted on a mounting plate.

[0019] As a preferred technical solution, the cabinet further includes a bottom plate and a bottom mesh, the bottom plate is mounted on the cabinet body, the bottom mesh is mounted on the bottom plate, and the bottom mesh is connected to the fourth cabinet body.

[0020] As a preferred technical solution, the cabinet further includes dustproof cotton and a dustproof cover, the dustproof cotton is installed at the air inlet, and the dustproof cover is installed on the dustproof cotton and connected to the cabinet body.

[0021] As a preferred technical solution, the cabinet further includes hinges and captive screws, and the dust cover is connected to the cabinet body via the hinges and captive screws.

[0022] As a preferred technical solution, the cabinet further includes a fixed rack, and the fixed rack is installed on the cabinet body.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The present invention changes the air flow direction from horizontal to vertical by providing an L-shaped air duct and a fan disk, so that the air can pass through the vehicle controller host in a vertical manner, the air flow is smoother, and it is more conducive to the heat dissipation of the vehicle controller host, and the heat dissipation effect is better.

[0025] 2. The second air outlet of the present invention adopts a shutter style. When the cabinet is installed close to the edge of the seat, it prevents passengers from accidentally radiating water into the cabinet and causing damage to the cabinet.

[0026] 3. The present invention forms a guide space through the first isolation plate, the second isolation plate, the cabinet body and the top plate to guide the air to the air outlet.

[0027] 4. The present invention blocks the air from the third cabinet by setting a second isolation plate, thereby preventing the fan disk from sucking in dust and other debris, which would affect the normal operation of the equipment.

[0028] 5. The present invention installs the dust cover on the cabinet body through hinges and captive screws, so that the dust cotton can be replaced without removing the dust cover, which is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the internal structure of the present invention;

[0030] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0031] Figure 3 It is a schematic diagram of the bottom structure of the present invention;

[0032] Figure 4 It is a schematic diagram of the air duct structure of the present invention;

[0033] Figure 5 It is a schematic diagram of the installation of the device of the present invention;

[0034] Figure 6 It is a front view of the first cabinet door structure of the present invention;

[0035] Figure 7 It is a rear view of the first cabinet door structure of the present invention;

[0036] Figure 8 Schematic diagram of airflow according to the present invention.

[0037] 1. Cabinet body; 2. First cabinet door; 3. Dust-proof cotton; 4. Dust cover; 5. Second cabinet door; 6. Third cabinet door; 7. Top plate; 8. Internal wire tie rack; 9. External wire tie rack; 10. Fixed bracket; 11. Fan tray; 12. Vehicle controller host; 13. Communication connector; 14. Network connector; 15. External connector; 16. DIN rail; 21. Single-point lock; 22. Handle; 23. Tempered glass; 24. Tempered glass fixing bracket; 25. First isolation board; 26. Second isolation board; 27. Mounting plate; 28. First air outlet; 29. ​​Second air outlet; 30. Bottom mesh; 31. Duct isolation board. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0039] The urban rail transit industry is developing rapidly. With the increasing maturity of subway unmanned driving technology, the driver's cab on the subway vehicle has been cancelled, and the original electrical equipment cabinets on the vehicle have also been reduced accordingly. The problem that follows is that the on-board equipment needs to find new installation space. As the brain of train operation control, the on-board controller has the characteristics of large size, high heat generation, and many connecting cables. Generally, the on-board controller, fan tray, supporting equipment, connectors and cables are installed together in a cabinet to form an on-board controller cabinet. At present, the equipment in the on-board controller cabinet is stacked up and down, and the cabinet adopts a cooling mode of up and down ventilation. A certain space needs to be reserved at the bottom and top of the cabinet for cabinet air inlet and outlet, so the cabinet requires a large installation space. The on-board controller cabinet has always been installed in the vehicle's electrical cabinet. A set of on-board controller cabinets will be installed at the front and rear of the car. Therefore, the whole vehicle needs two electrical cabinets, and the electrical cabinet is large in size and occupies a large space in the vehicle, which correspondingly reduces the space for passengers and has a certain impact on the train's transportation capacity.

[0040] Finding new space for the installation of on-board control cabinets has become a problem that plagues the rail transit signal industry. The space under the passenger seats is generally neglected. This position is relatively short and narrow, and is generally an open space. Fire extinguishers are placed in this position or it is empty. If it is closed, some simple independent equipment will be installed inside. These devices are small in size and generate little heat. At present, there is no precedent in the industry for installing on-board controllers under passenger seats. The difficulties of not installing on-board controllers under seats are mainly: 1. The cabinet size is large and it is not easy to install in this space; 2. The ventilation and heat dissipation problems of internal equipment cannot be solved.

[0041] Therefore, the present invention provides a vehicle-mounted controller cabinet installed under the train seat; the present invention changes the air flow direction from horizontal to vertical by setting an L-shaped air duct and a fan disk, so that the air can pass through the vehicle-mounted controller host in a vertical manner, and the air flow is smoother, which is more conducive to the heat dissipation of the vehicle-mounted controller host and has a better heat dissipation effect. The second air outlet of the present invention adopts a shutter style. When the cabinet is installed closer to the edge of the seat, it prevents passengers from accidentally cooling the cabinet with water and causing damage to the cabinet. The present invention forms a guide space by a first isolation plate, a second isolation plate, a cabinet body and a top plate to guide the air to the air outlet. The present invention blocks the air from the third cabinet body by setting a second isolation plate to prevent the fan disk from inhaling dust and other debris, which affects the normal operation of the equipment. The present invention installs the dust cover on the cabinet body by hinges and captive screws, so that the dust cotton can be replaced without removing the dust cover, which is convenient and quick.

[0042] Example 1

[0043] like Figure 1-Figure 3As shown, a vehicle-mounted controller cabinet installed under a train seat, the cabinet changes the air flow direction for heat dissipation of a vehicle-mounted controller host 12, the cabinet comprises a cabinet body 1, an air inlet, a top plate 7, a first isolation plate 25 and a fan disk 11, the air inlet and the top plate 7 are installed on the cabinet body 1, the cabinet also comprises an L-shaped air duct and an air outlet, the air outlet is installed on the top plate 7 and the cabinet body 1, the L-shaped air duct is installed on the cabinet body 1, the L-shaped air duct comprises a first air duct and a second air duct, the first air duct and the second air duct are connected and perpendicular, the first air duct and the top plate 7 are perpendicular, the fan disk 11 is installed on the second air duct, the first air duct is connected to the air inlet, the first isolation plate 25 is installed in the cabinet body 1 and is parallel to the top plate 7, the vehicle-mounted controller host 12 is respectively connected to the first isolation plate 25 and the fan disk 11, the air passes through the air inlet, the first air duct, the second air duct, the fan disk 11, the vehicle-mounted controller host 12, the first isolation plate 25 and the air outlet in sequence.

[0044] like Figure 4 As shown, the L-shaped air duct is an L-shaped air duct welded by an air duct isolation plate 31. The L-shaped air duct also includes a first air duct opening and a second air duct opening, the first air duct opening is installed on the first air duct, the second air duct opening is installed on the second air duct, the first air duct opening is connected to the air inlet, and the second air duct opening is connected to the fan disk 11.

[0045] In this embodiment, in order to change the direction of the airflow from horizontal to vertical through the vehicle controller host 12 for heat dissipation, the L-shaped air duct is installed in the cabinet 1 by connecting the first air duct and the second air duct and vertically forming an L-shaped air duct, the first air duct and the top plate 7 are perpendicular, and the fan disk 11 is installed on the second air duct. When the fan disk 11 is working, it draws air into the second air duct opening, and the airflow is from the air inlet, the first air duct opening, the second air duct opening, and the fan disk 11, realizing the change of the airflow direction from horizontal to vertical; then the fan disk 11 blows the airflow to the vehicle controller host 12 and takes away the heat, and the first isolation plate 25 is installed in the cabinet 1 and parallel to the top plate 7 to form a guide space, in which the airflow is guided to the air outlet for heat dissipation. The L-shaped air duct is welded with an air duct isolation plate 31, and the airflow can only enter and exit the L-shaped air duct through the first air duct opening and the second air duct opening. The cabinet body 1 is welded from stainless steel square steel pipes and stainless steel plates, and is mainly used for the installation of internal equipment, connectors, cabinet doors, and various brackets, and plays a role in resisting vehicle vibration and impact, and needs to be sufficiently strong and stable. The top plate 7 is fixed to the cabinet body 1 with screws, and an air outlet is provided on the top plate 7.

[0046] The cabinet also includes a second isolation plate 26, which is centrally installed on the cabinet body 1 and perpendicular to the long side of the cabinet body 1. The second isolation plate 26 is connected to the top plate 7. The first isolation plate 25 and the second isolation plate 26 are perpendicular and connected. The second isolation plate 26 divides the cabinet body 1 into a first cabinet body and a second cabinet body.

[0047] In this embodiment, the second isolation plate 26 divides the cabinet 1 into two parts, namely the first cabinet and the second cabinet. Different equipment is installed in the first cabinet and the second cabinet. The air inlet, L-shaped air duct, fan tray 11 and vehicle-mounted controller host 12 are installed in the first cabinet. A diversion space is formed by the first isolation plate 25, the second isolation plate 26, the cabinet 1 and the top plate 7.

[0048] The cabinet further comprises a first cabinet door 2, a second cabinet door 5 and a third cabinet door 6, wherein the first cabinet door 2 and the second cabinet door 5 are mounted on the first cabinet body, and the third cabinet door 6 is mounted on the second cabinet body. The cabinet further comprises a single-point lock 21, a handle 22, a tempered glass 23 and a tempered glass fixing frame 24, wherein the single-point lock 21 and the handle 22 are mounted on the first cabinet door 2, and the tempered glass 23 is mounted on the first cabinet door 2 via the tempered glass fixing frame 24.

[0049] In this embodiment, the cabinet doors are divided into a first cabinet door 2, a second cabinet door 5 and a third cabinet door 6. The second cabinet door 5 and the third cabinet door 6 are fixed to the cabinet body 1 with screws. The back of the cabinet is close to the vehicle body and is not maintained. The back door will basically not be removed after the cabinet is installed. The purpose of fixing with screws is to facilitate the use of the back space during the production of the cabinet wiring. The first cabinet door 2 is provided with four single-point locks 21. On the one hand, it is necessary to facilitate disassembly and assembly, and on the other hand, it also requires sufficient force to meet the vibration and impact requirements of the vehicle; two handles 22 are also provided on the first cabinet door 2 for taking the front door; tempered glass 23 is installed in the middle of the first cabinet door 2 for observing the light position of the host board inside the cabinet from the outside; four tempered glass fixing frames 24 are designed on the inner side of the first cabinet door 2 for installing and fixing tempered glass. The front view and back view of the first cabinet door 2 are as shown in the figure. Figure 6 , Figure 7 shown.

[0050] The cabinet also includes a mounting plate 27, which is centrally mounted on the second cabinet and parallel to the long side of the cabinet 1. The mounting plate 27 is respectively connected to the second isolation plate 26 and the top plate 2. The mounting plate 27 divides the second cabinet into a third cabinet and a fourth cabinet, and the fourth cabinet is connected to the first cabinet.

[0051] In this embodiment, the mounting plate 27 installs various interfaces and divides the second cabinet into two parts, and the fourth cabinet is connected to the first cabinet; at the same time, the fourth cabinet is also connected to the guide space formed by the first isolation plate 25, the second isolation plate 26, the cabinet 1 and the top plate 7.

[0052] The cabinet further comprises an internal wire tying rack 8 and an external wire tying rack 9. The internal wire tying rack 8 is installed in the fourth cabinet, and the external wire tying rack 9 is installed in the third cabinet.

[0053] In this embodiment, the internal cable tie rack 8 and the external cable tie rack 9 are used for wiring inside and outside the cabinet to avoid stress on the cables.

[0054] The air outlet includes a first air outlet 28 and a second air outlet 29. The first air outlet 28 is installed on the top plate 7, and the second air outlet 29 is installed on the fourth cabinet. The second air outlet 29 is an air outlet in the form of a shutter. The first air outlet 28 is connected to the fourth cabinet.

[0055] In this embodiment, the air outlets are divided into two categories to facilitate better heat dissipation; the first air outlet 28 is a normal circular heat dissipation hole, and the second air outlet 29 is an air outlet in the form of a shutter. When the cabinet is close to the outside of the seat, water can be prevented from splashing into the cabinet, and the use of a shutter-style air outlet can effectively avoid this.

[0056] The cabinet further includes a communication connector 13 , a network connector 14 , an external connector 15 and a DIN rail 16 , and the communication connector 13 , the network connector 14 , the external connector 15 and the DIN rail 16 are mounted on a mounting plate 27 .

[0057] In this embodiment, the mounting interface of the mounting plate 27 is as follows: Figure 5 As shown, the on-board controller host 12 is mainly used for controlling the operation of the train, the fan disk 11 is mainly used for heat dissipation of the controller host, the external connector 14 is mainly used for power supply, safety and non-safety signal acquisition output, etc., the network connector 15 is mainly used for network connection between the controller host and external devices, the connecting cable is located on the back of the mounting plate 27, and is used for the connection between the on-board controller host 12 and the external connector 15 and the network connector 14, the communication connector 13 is mainly used for vehicle-to-ground communication equipment, and the DIN rail 16 connects the cables.

[0058] The cabinet further comprises a bottom plate and a bottom mesh 30, wherein the bottom plate is mounted on the cabinet body 1, the bottom mesh 30 is mounted on the bottom plate, and the bottom mesh 30 is connected to the fourth cabinet body. If water drips from the top plate 7 into the cabinet, it can be discharged from the cabinet in time through the mesh at the bottom, thereby avoiding water accumulation in the cabinet and causing electrical accidents.

[0059] The cabinet further comprises dustproof cotton 3 and a dustproof cover 4 . The dustproof cotton 3 is installed at the air inlet, and the dustproof cover is installed on the dustproof cotton 3 and connected to the cabinet body 1 .

[0060] The cabinet further comprises hinges and captive screws, and the dust cover 4 is connected to the cabinet body 1 via the hinges and captive screws.

[0061] In this embodiment, a dust cover 4 and dust cotton 3 are provided at the air inlet to prevent dust from entering the cabinet. The dust cover 4 adopts a combination of hinges and captive screws. A hinge is used on the back of the dust cover 4 and captive screws are used on the front. After unscrewing the captive screws, the dust cover 4 can be opened to replace the dust cotton 3, thereby realizing that the dust cotton can be replaced without removing the dust cover.

[0062] The cabinet further includes a fixed frame 10 , and the fixed frame 10 is installed on the cabinet body 1 .

[0063] In this embodiment, the fixing bracket 10 is welded to the cabinet body 1 and is used for fixing the cabinet to the vehicle to ensure the stability of the cabinet.

[0064] The air flow schematic diagram of the present invention is as follows Figure 8 As shown, the air passes through the dust cover 4, dust cotton 3, air inlet, first air duct, second air duct, fan disk 11, vehicle controller host 12, first isolation plate 25, fourth cabinet and air outlet in sequence, and dissipates heat through the first air outlet 28 and the second air outlet 29.

[0065] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A vehicle-mounted controller cabinet installed under a train seat, the cabinet changes the air flow direction for heat dissipation of a vehicle-mounted controller host (12), the cabinet comprising a cabinet body (1), an air inlet, a top plate (7), a first isolation plate (25) and a fan disk (11), the air inlet and the top plate (7) being installed on the cabinet body (1), characterized in that: The cabinet further comprises an L-shaped air duct and an air outlet, wherein the air outlet is mounted on the top plate (7) and the cabinet body (1), the L-shaped air duct is mounted on the cabinet body (1), the L-shaped air duct comprises a first air duct and a second air duct, the first air duct and the second air duct are connected and perpendicular to each other, the first air duct and the top plate (7) are perpendicular to each other, the fan disk (11) is mounted on the second air duct, the first air duct is connected to the air inlet, the first isolation plate (25) is mounted in the cabinet body (1) and is parallel to the top plate (7), the vehicle-mounted controller host (12) is respectively connected to the first isolation plate (25) and the fan disk (11), and the air passes through the air inlet, the first air duct, the second air duct, the fan disk (11), the vehicle-mounted controller host (12), the first isolation plate (25) and the air outlet in sequence.

2. The on-board controller cabinet installed under a train seat according to claim 1, characterized in that: The L-shaped air duct is an L-shaped air duct formed by welding air duct isolation plates (31).

3. The on-board controller cabinet installed under a train seat according to claim 1, characterized in that: The L-shaped air duct further comprises a first air duct opening and a second air duct opening, wherein the first air duct opening is installed on the first air duct, and the second air duct opening is installed on the second air duct, the first air duct opening is connected to the air inlet, and the second air duct opening is connected to the fan disk (11).

4. The on-board controller cabinet installed under a train seat according to claim 1, characterized in that: The cabinet further comprises a second isolation plate (26), the second isolation plate (26) being centrally mounted on the cabinet body (1) and perpendicular to the long side of the cabinet body (1), the second isolation plate (26) being connected to the top plate (7), the first isolation plate (25) and the second isolation plate (26) being perpendicular and connected, and the second isolation plate (26) dividing the cabinet body (1) into a first cabinet body and a second cabinet body.

5. The on-board controller cabinet installed under a train seat according to claim 4, characterized in that: The cabinet further comprises a first cabinet door (2), a second cabinet door (5) and a third cabinet door (6); the first cabinet door (2) and the second cabinet door (5) are mounted on the first cabinet body, and the third cabinet door (6) is mounted on the second cabinet body.

6. The on-board controller cabinet installed under a train seat according to claim 5, characterized in that: The cabinet further comprises a single-point lock (21), a handle (22), a tempered glass (23) and a tempered glass fixing frame (24); the single-point lock (21) and the handle (22) are mounted on the first cabinet door (2); and the tempered glass (23) is mounted on the first cabinet door (2) via the tempered glass fixing frame (24).

7. The on-board controller cabinet installed under a train seat according to claim 4, characterized in that: The cabinet further comprises a mounting plate (27), wherein the mounting plate (27) is centrally mounted on the second cabinet body and parallel to the long side of the cabinet body (1), wherein the mounting plate (27) is respectively connected to the second isolation plate (26) and the top plate (2), and wherein the mounting plate (27) divides the second cabinet body into a third cabinet body and a fourth cabinet body, wherein the fourth cabinet body is connected to the first cabinet body.

8. The on-board controller cabinet installed under a train seat according to claim 7, characterized in that: The cabinet further comprises an internal wire binding rack (8) and an external wire binding rack (9), wherein the internal wire binding rack (8) is installed in the fourth cabinet body, and the external wire binding rack (9) is installed in the third cabinet body.

9. The on-board controller cabinet installed under a train seat according to claim 8, characterized in that: The air outlet comprises a first air outlet (28) and a second air outlet (29), wherein the first air outlet (28) is installed on the top plate (7), and the second air outlet (29) is installed on the fourth cabinet.

10. The on-board controller cabinet installed under a train seat according to claim 9, characterized in that: The second air outlet (29) is an air outlet in the form of a shutter.

11. The on-board controller cabinet installed under a train seat according to claim 9, characterized in that: The first air outlet (28) is connected to the fourth cabinet.

12. The on-board controller cabinet installed under a train seat according to claim 7, characterized in that: The cabinet further comprises a communication connector (13), a network connector (14), an external connector (15) and a DIN rail (16), wherein the communication connector (13), the network connector (14), the external connector (15) and the DIN rail (16) are mounted on a mounting plate (27).

13. The on-board controller cabinet installed under a train seat according to claim 7, characterized in that: The cabinet further comprises a bottom plate and a bottom mesh (30), wherein the bottom plate is mounted on the cabinet body (1), the bottom mesh (30) is mounted on the bottom plate, and the bottom mesh (30) is connected to the fourth cabinet body.

14. The on-board controller cabinet installed under a train seat according to claim 1, characterized in that: The cabinet further comprises dustproof cotton (3) and a dustproof cover (4), wherein the dustproof cotton (3) is installed at the air inlet, and the dustproof cover is installed on the dustproof cotton (3) and connected to the cabinet body (1).

15. The on-board controller cabinet installed under a train seat according to claim 14, characterized in that: The cabinet further comprises hinges and captive screws, and the dust cover (4) is connected to the cabinet body (1) via the hinges and captive screws.

16. The on-board controller cabinet installed under a train seat according to claim 1, characterized in that: The cabinet further comprises a fixed frame (10), wherein the fixed frame (10) is mounted on the cabinet body (1).

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