Cab air duct system and rail vehicle

Abstract

The application discloses a driver's room air duct system, comprising: an air flow distribution box connected with an air conditioning unit at one end; a front end air duct, a rear end air duct, a left side air duct, a right side air duct and a return air duct respectively connected with the other end of the air flow distribution box; the outlet of the front end air duct is close to the inner wall of the front end of the driver's room and is located below the front end glass; the outlet of the rear end air duct is close to the inner wall of the rear end of the driver's room; the outlet of the left side air duct is close to the inner wall of the left side of the driver's room and is located below the left side glass; the outlet of the right side air duct is close to the inner wall of the right side of the driver's room and is located below the right side glass; the inlet of the return air duct is located on the central screen cabinet of the driver's room or on the inner wall of the driver's room close to the air conditioning unit. The application also provides a railway vehicle. The driver's room air duct system and the railway vehicle provided by the application can ensure the temperature uniformity of all areas in the driver's room, improve the overall comfort of the driver's room, and quickly defrost and defog the front window and the side window glass.

Description

Technical Field

[0001] This application relates to the field of rail vehicle technology, and in particular to a driver's cab ventilation system and a rail vehicle. Background Technology

[0002] During the operation of rail vehicles, ensuring that the temperature, humidity, noise level, and visibility in the driver's cab are within a suitable range helps the driver and crew to concentrate on operating the vehicle and handling emergencies.

[0003] The air conditioning unit in the driver's cab of a rail vehicle serves two purposes: regulating the air temperature inside the cab and defrosting and defogging the windows. However, existing driver's cab air conditioning and ventilation systems typically only ensure temperature uniformity within a small area of ​​the cab and can only quickly defrost and defog the windshield, failing to meet the increasingly higher demands for a comfortable working environment.

[0004] Therefore, there is an urgent need to design a new type of air conditioning and ventilation system. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the first objective of this invention is to provide a driver's cab ventilation system; the second objective of this invention is to provide a rail vehicle. The driver's cab ventilation system and rail vehicle provided by this application can ensure temperature uniformity in all areas of the driver's cab, while increasing the air supply area and reducing the air outlet velocity, thereby reducing wind noise and improving the overall comfort of the driver's cab. It can also quickly defrost and defog the front and side windows.

[0006] The technical solution provided by this invention is as follows:

[0007] A driver's cab ventilation system, comprising:

[0008] An airflow distribution box connected to the air conditioning unit;

[0009] The front air duct, rear air duct, left air duct, right air duct and return air duct are respectively connected to the other end of the air distribution box;

[0010] The outlet of the front air duct is close to the inner wall of the front of the driver's cab and located below the front glass;

[0011] The outlet of the rear air duct is located near the inner wall of the rear end of the driver's cab;

[0012] The outlet of the left-side air duct is located near the left-side inner wall of the driver's cab and below the left-side glass;

[0013] The outlet of the right-side air duct is located near the right-side inner wall of the driver's cab and below the right-side glass;

[0014] The inlet of the return air duct is located in the central control panel of the driver's cab or on the inner wall of the driver's cab near the air conditioning unit.

[0015] Preferably, the airflow distribution box is located at the front end of the driver's cab, and the airflow distribution box includes an end face air inlet, a side air inlet, and a return air inlet.

[0016] The outlet of the end face air outlet is divided into a first end face air outlet and a second end face air outlet, which are respectively connected to the front end air duct and the rear end air duct.

[0017] The side air outlet is divided into two side air outlets, which are connected to the left air duct and the right air duct respectively;

[0018] The directions of the first end face air outlet and the second end face air outlet are at an angle.

[0019] Preferably, the air outlet on the first end face faces upward, and the air outlet on the second end face faces to the side.

[0020] Preferably, when the inlet of the return air duct is located in the central control panel of the driver's cab, the return air duct includes two return air branch pipes, and the inlets of the two return air branch pipes are respectively provided with return air components, and the return air components are arranged opposite to each other.

[0021] The return air inlet is divided into two return air outlets, which are connected to two return air branch pipes respectively.

[0022] Preferably, a flow divider is used to separate the end face air supply outlet, side air supply outlet, or return air outlet. The flow divider has an angle facing the inlet of the airflow distribution box, and the flow divider on both sides of the angle has an arc for guiding the airflow.

[0023] Preferably, the front air duct, rear air duct, left air duct, and right air duct are each provided with an air outlet assembly, and the air outlet assembly is provided with at least one nozzle;

[0024] The air outlet components of the front and rear air ducts are partially offset relative to the centerline of the cab end face.

[0025] The air outlet components of the left and right air ducts are partially offset from the center line of the cab side.

[0026] Preferably, the nozzle includes a frame, blades, and a wind deflector.

[0027] The frame is fixedly connected to the air outlet assembly, and the two ends of the blades are fixed inside the frame, and the angle of the blades is adjustable.

[0028] The windbreak is rotatably mounted within the frame and rotates around the outer circumference of the blade.

[0029] Preferably, a waste exhaust ventilation device is also provided.

[0030] Preferably, the front air duct, rear air duct, left air duct, right air duct, and return air duct are each provided with at least one maintenance structure.

[0031] The maintenance structure includes a flexible air duct and two connectors, which are respectively located at both ends of the flexible air duct and are equipped with detachable locking components.

[0032] A rail vehicle includes a driver's cab, the driver's cab including an air conditioning unit and a driver's cab ventilation system as described in any of the preceding claims.

[0033] This application provides a driver's cab air duct system, including an air distribution box, a front air duct, a rear air duct, a left air duct, a right air duct, and a return air duct, with each component located at a different position in the driver's cab. The driver's cab air duct system provided in this application can work in conjunction with the air conditioning unit. The treated air enters the air distribution box in the driver's cab through the air supply vents and air ducts of the air conditioning unit. The air distribution box distributes the air supplied by the air conditioning unit into the front air duct, rear air duct, left air duct, right air duct, and return air duct. The four air ducts then deliver air to the front, rear, left, and right inner walls of the driver's cab, respectively, providing airflow from four directions. The inlet of the return air duct is located in the central control panel of the driver's cab or on the inner wall of the driver's cab near the air conditioning unit. When the return air is in the center of the driver's cab, the air flows from the four sides of the driver's cab towards the center, and then returns to the air conditioning unit after being filtered through the return air filter at the central return air inlet, completing one indoor air circulation. When the inlet of the return air duct is located on the inner wall of the driver's cab near the air conditioning unit, the air flows from the four sides of the driver's cab towards this inner wall, ensuring temperature uniformity in the driver's cab and improving the overall comfort of the driver's cab. Meanwhile, the outlets of the front air duct, left air duct, and right air duct are located below the front glass, left glass, and right glass, respectively, using airflow to quickly defrost and defog the front and side windows.

[0034] The driver's cab air duct system provided in this application can ensure temperature uniformity in all areas of the driver's cab, while increasing the air supply area and reducing the air velocity, thereby reducing wind noise and improving the overall comfort of the driver's cab. It can also quickly defrost and defog the windshield and side windows.

[0035] This application also provides rail vehicles including the aforementioned driver's cab ventilation system. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1This is a side view of the driver's cab air duct system in an embodiment of the present invention (the right-side air duct is not shown);

[0038] Figure 2 This is a top view of the driver's cab air duct system in an embodiment of the present invention;

[0039] Figure 3 This is a schematic diagram of the airflow distribution box in an embodiment of the present invention. Figure 1 (Viewed from the direction of connection to the air conditioning unit);

[0040] Figure 4 This is a schematic diagram of the airflow distribution box in an embodiment of the present invention. Figure 2 (Viewed from the direction of connection to the air conditioning unit);

[0041] Figure 5 This is a cross-sectional schematic diagram of the side air outlet in the airflow distribution box in an embodiment of the present invention;

[0042] Figure 6 This is a cross-sectional schematic diagram of the air outlet on the end face of the air distribution box in an embodiment of the present invention;

[0043] Figure 7 This is a schematic diagram of the return air assembly in an embodiment of the present invention;

[0044] Figure 8 for Figure 7 Sectional view along axis AA;

[0045] Figure 9 This is a schematic diagram of the nozzle structure in an embodiment of the present invention (with the frame opening fully open);

[0046] Figure 10 This is a schematic diagram of the nozzle structure in an embodiment of the present invention (the opening of the frame is half open);

[0047] Figure 11 This is a schematic diagram of the nozzle structure in an embodiment of the present invention (with the frame opening closed);

[0048] Figure 12 This is a side view of the nozzle in an embodiment of the present invention;

[0049] Figure 13 This is a schematic diagram of the blade structure in an embodiment of the present invention;

[0050] Figure 14 This is a schematic diagram of the maintenance structure in an embodiment of the present invention;

[0051] Reference numerals: 1-Airflow distribution box; 11-End face air outlet; 111-First end face air outlet; 112-Second end face air outlet; 12-Side air outlet; 13-Return air outlet; 14-Diverter plate; 2-Front end air duct; 3-Rear end air duct; 4-Left side air duct; 5-Right side air duct; 6-Return air duct; 61-Return air branch pipe; 62-Return air assembly; 621-Back plate; 622-Cover plate; 7-Outlet air assembly; 71-Nozzle; 72-Frame; 73-Blade; 74-Wind deflector; 8-Waste exhaust device; 9-Maintenance structure; 91-Flexible air duct; 92-Connector; A-Driver's cab; B-Air conditioning unit. Detailed Implementation

[0052] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0053] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0054] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0055] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" or "several" means two or more, unless otherwise explicitly specified.

[0056] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0057] As shown in the figure, an embodiment of the present invention provides a driver's cab air duct system, including:

[0058] An airflow distribution box 1, one end of which is connected to an air conditioning unit;

[0059] The front air duct 2, rear air duct 3, left air duct 4, right air duct 5 and return air duct 6 are respectively connected to the other end of the air distribution box 1;

[0060] The outlet of the front air duct 2 is close to the inner wall of the front of the driver's cab and located below the front glass;

[0061] The outlet of the rear air duct 3 is located near the rear inner wall of the driver's cab;

[0062] The outlet of the left air duct 4 is close to the left inner wall of the driver's cab and located below the left glass;

[0063] The outlet of the right-side air duct 5 is close to the right-side inner wall of the driver's cab and located below the right-side glass;

[0064] The inlet of the return air duct 6 is located in the central control cabinet of the driver's cab or on the inner wall of the driver's cab near the air conditioning unit.

[0065] This application provides a driver's cab air duct system, including an air distribution box 1, a front air duct 2, a rear air duct 3, a left air duct 4, a right air duct 5, and a return air duct 6, with each component located at a different position in the driver's cab. The driver's cab air duct system provided in this application can work in conjunction with the air conditioning unit. The treated air enters the air distribution box 1 in the driver's cab through the air supply vents and air ducts of the air conditioning unit. The air distribution box 1 distributes the air supplied by the air conditioning unit into the front air duct 2, rear air duct 3, left air duct 4, right air duct 5, and return air duct 6. The four air ducts deliver air to the front, rear, left, and right inner walls of the driver's cab, respectively, providing airflow from four directions. The inlet of the return air duct 6 is located in the central control panel of the driver's cab or on the inner wall of the driver's cab near the air conditioning unit. When the return air is in the center of the driver's cab, the air flows from the four sides of the driver's cab towards the center, and then returns to the air conditioning unit after being filtered through the return air filter at the central return air inlet 13, completing an indoor air circulation. When the inlet of the return air duct is located on the inner wall of the driver's cab near the air conditioning unit, the air flows from the four sides of the driver's cab towards this inner wall, ensuring temperature uniformity in the driver's cab and improving the overall comfort of the driver's cab. Meanwhile, the outlets of the front air duct 2, the left air duct 4, and the right air duct 5 are located below the front glass, the left glass, and the right glass, respectively, using airflow to quickly defrost and defog the front and side windows.

[0066] The driver's cab air duct system provided in this application can ensure temperature uniformity in all areas of the driver's cab, while increasing the air supply area and reducing the air velocity, thereby reducing wind noise and improving the overall comfort of the driver's cab. It can also quickly defrost and defog the windshield and side windows.

[0067] The locations of the outlets of the front air duct 2, rear air duct 3, left air duct 4, and right air duct 5 are adjusted according to the layout of the control panel and other equipment in the driver's cab, and are placed as close to the glass as possible to ensure defrosting and defogging effects. For example, the outlets of the front air duct 2 and rear air duct 3 are placed near the front window on the front and rear control panels, while the outlets of the left air duct 4 and right air duct 5 are placed directly on the left and right side walls.

[0068] The airflow distribution box 1 can be installed in the driver's cab and connected by a pipe passing through the partition wall of the driver's cab. Alternatively, the airflow distribution box 1 can be installed in the partition wall of the driver's cab. It is preferable to install the airflow distribution box 1 in the partition wall of the driver's cab and weld it together with the driver's cab frame. This can not only play the role of airflow but also play the role of load-bearing the driver's cab frame. At the same time, the sealing of the driver's cab is better.

[0069] The air distribution box 1 is connected to the supply and return air ducts of the air conditioning unit. Specifically, the part of the air distribution box 1 that is connected to the front air duct 2, the rear air duct 3, the left air duct 4, and the right air duct 5 is connected to the supply air duct of the air conditioning unit, and the part that is connected to the return air duct 6 is connected to the return air duct of the air conditioning unit.

[0070] Preferably, the airflow distribution box 1 is located at the front end of the driver's cab, and the airflow distribution box 1 includes an end face air inlet 11, a side air inlet 12, and a return air inlet 13.

[0071] The outlet of the end face air outlet 11 is divided into a first end face air outlet 111 and a second end face air outlet 112, which are respectively connected to the front end air duct 2 and the rear end air duct 3.

[0072] The outlet of the side air outlet 12 is divided into two side air outlets, which are connected to the left air duct 4 and the right air duct 5 respectively;

[0073] The directions in which the first end face air outlet 111 and the second end face air outlet 112 face are oriented are at an angle.

[0074] The air conditioning unit is located outside the driver's cab and is connected to the airflow distribution box 1 via ducts. Preferably, the air conditioning unit is located at the front of the driver's cab, so the airflow distribution box 1 is also located at the front of the driver's cab for easy connection to the air conditioning unit. The airflow distribution box 1 includes an end-face air outlet 11, a side air outlet 12, and a return air outlet 13. The end-face air outlet 11 and the side air outlet 12 are separated into two sections, respectively connecting to the front air duct 2, the rear air duct 3, the left air duct 4, and the right air duct 5. Since the airflow distribution box 1 is located at the front, and the lengths of the front air duct 2 and the rear air duct 3 differ significantly, as do their structures, resulting in varying resistance in each air duct, the first end-face air outlet 111 and the second end-face air outlet 112 are designed to face different directions, i.e., there is an angle between the directions of the first end-face air outlet 111 and the second end-face air outlet 112.

[0075] Since the distances between the left air duct 4 and the right air duct 5 and the airflow distribution box 1 are not much different, the two side air outlets separated by the outlet of the side air outlet 12 can face the same direction, which has little impact on the uniformity of airflow.

[0076] Preferably, the first end face air outlet 111 faces upward, and the second end face air outlet 112 faces sideways.

[0077] The applicant determined through ground tests that the first end face air outlet 111 faces upward and the second end face air outlet 112 faces to the side (at which point the angle between the two is close to 90°), which can ensure the uniformity of air supply in the air conditioning system.

[0078] Preferably, when the inlet of the return air duct 6 is located in the central control panel of the driver's cab, the return air duct 6 includes two return air branch pipes 61, and the inlets of the two return air branch pipes 61 are respectively provided with return air components 62, and the return air components 62 are arranged opposite to each other.

[0079] The inlet of return air vent 13 is divided into two return air vents, which are connected to two return air branch pipes 61 respectively.

[0080] When the inlet of the preferred return air duct 6 is located in the central control panel of the driver's cab, the return air duct 6 includes two return air branch pipes 61, and two opposing return air components 62 are installed at the inlet of the return air branch pipes 61 for return air. Correspondingly, the inlet of the return air outlet 13 is divided into two return air outlets, which are connected to the two return air branch pipes 61 respectively. The distances between the return air branch pipes 61 and the airflow distribution box 1 are not significantly different, and the two return air outlets divided by the inlet of the return air outlet 13 can face the same direction, which has little impact on the uniformity of airflow.

[0081] When the inlet of the return air duct 6 is located in the central control panel of the driver's cab, the airflow organization is better than when the inlet of the return air duct 6 is located on the inner wall of the driver's cab near the air conditioning unit. This configuration is preferred.

[0082] The return air assembly 62 can use a structure known in the art. For example, it includes a back panel 621 and a cover plate 622, through which return air enters the return air branch duct 61 from the gap between the cover plate 622 and the back panel 621. More preferably, the back panel 621 and the cover plate 622 are detachably connected for easy cleaning.

[0083] Preferably, a flow divider 14 is used to separate the end face air outlet 11, the side air outlet 12, or the return air outlet 13. The flow divider 14 has a bend facing the inlet of the airflow distribution box 1, and the flow dividers on both sides of the bend have an arc for guiding the airflow.

[0084] Preferably, a splitter plate 14 is used to separate the end face air outlet 11, the side air outlet 12, or the return air outlet 13. The splitter plate 14 has a bend facing the inlet of the airflow distribution box 1, and the splitter plates on both sides of the bend have an arc for guiding the airflow.

[0085] The diverter plate 14 located within the end face air outlet 11, in conjunction with the angular difference in orientation between the first end face air outlet 111 and the second end face air outlet 112, has a larger (more blunt) angle, guiding the airflow to the two end face air outlets respectively. The diverter plate 14 located in the side air outlets 12 and return air outlets 13 has a smaller (sharper) angle, guiding the airflow to the two side air outlets or directing the air returning from the two return air branch pipes.

[0086] Preferably, the front air duct 2, the rear air duct 3, the left air duct 4, and the right air duct 5 are each provided with an air outlet assembly 7, and the air outlet assembly 7 is provided with at least one nozzle 71;

[0087] The air outlet components 7 of the front air duct 2 and the rear air duct 3 are partially offset relative to the center line of the cab end face.

[0088] The air outlet components 7 of the left air duct 4 and the right air duct 5 are partially offset from the center line of the cab side direction.

[0089] The front air duct 2, rear air duct 3, left air duct 4, and right air duct 5 are preferably each equipped with an air outlet assembly 7, and the air outlet assembly 7 is equipped with at least one nozzle 71 to distribute the delivered airflow more evenly and make the driver and passengers feel more comfortable.

[0090] The air outlet components 7 of the front air duct 2 and the rear air duct 3 are partially offset from the center line of the cab end face; the air outlet components 7 of the left air duct 4 and the right air duct 5 are partially offset from the center line of the cab side face. Thus, without occupying the entire length of the side wall, the airflow is more evenly distributed in the driver's cab by the offset arrangement.

[0091] For example, along the centerline of the cab end face, the air outlet components 7 of the front air duct 2 are distributed in a ratio of 2:8 on both sides of the centerline, while the air outlet components 7 of the rear air duct 3 are distributed in a ratio of 6:4, 7:3 or 8:2 on both sides of the centerline.

[0092] The air outlet component 7 is preferably elongated, but it can also be arc-shaped or have a shape that occupies a certain area.

[0093] Preferably, the nozzle 71 includes a frame 72, blades 73, and a wind deflector 74.

[0094] The frame 72 is fixedly connected to the air outlet assembly 7, and the two ends of the blade 73 are fixed inside the frame 72, and the angle of the blade 73 is adjustable.

[0095] The windbreak 74 is rotatably disposed within the frame 72 and rotates around the outer periphery of the blade 73.

[0096] The air outlet assembly 7 is provided with at least one nozzle 71 to disperse and spray the airflow.

[0097] The nozzle 71 used in this application preferably includes a frame 72, blades 73, and a baffle 74. The frame 72 is fixedly connected to the air outlet assembly 7, and both the blades 73 and the baffle 74 are disposed within the frame 72. The two ends of the blades 73 are fixed inside the frame 72, and the angle of the blades 73 is adjustable (they can be moved back and forth along the axis) to adjust the air outlet angle. The baffle 74 is rotatably disposed within the frame 72, rotating around the outer circumference of the blades 73. When the baffle 74 rotates to cover the entire opening area of ​​the frame 72, the nozzle 71 closes. When the baffle 74 rotates to other angles, the area of ​​the airflow ejected by the nozzle 71 changes, thereby adjusting the airflow magnitude.

[0098] The windshield 74 can also be equipped with a toggle ring, which allows the driver and passengers to easily adjust it at any angle.

[0099] By setting appropriate damping, it can be ensured that the windbreak component 74 will not rotate spontaneously due to vibrations during the operation of the rail vehicle, thus affecting its effectiveness.

[0100] Preferably, a waste exhaust ventilation device 8 is also provided.

[0101] Preferably, an exhaust ventilation device 8 is also provided. The exhaust ventilation device 8 forces the exhaust of air from the driver's compartment, promoting air circulation. The exhaust ventilation device 8 can adopt a structure known in the art, such as a combination of ductwork and fan.

[0102] The exhaust ventilation device 8 is preferably located in the center or near the center of the driver's cab. When the inlet of the return air duct 6 is located in the central control panel of the driver's cab, the exhaust ventilation device 8 is located near the inlet of the return air duct 6.

[0103] Preferably, the front air duct 2, rear air duct 3, left air duct 4, right air duct 5, and return air duct 6 are each provided with at least one maintenance structure 9.

[0104] The maintenance structure 9 includes a flexible air duct 91 and two connectors 92. The connectors 92 are respectively located at both ends of the flexible air duct 91 and are equipped with detachable locking components.

[0105] After a period of operation, dust usually accumulates in the ventilation ducts of rail vehicles, leading to a decrease in the quality of the air delivered through the ducts and affecting the health of drivers and passengers. Cleaning the ventilation ducts requires disassembling the entire duct system, which consumes a lot of manpower and resources, and is usually unacceptable to owners.

[0106] To address the aforementioned issues, this application also provides at least one maintenance structure 9 in each of the front air duct 2, rear air duct 3, left air duct 4, right air duct 5, and return air duct 6. When maintenance and cleaning are required, the maintenance structure 9 can be disassembled for operation without disassembling the entire air duct.

[0107] Specifically, the maintenance structure 9 includes a flexible air duct 91 and two connectors 92. The connectors 92 are located at both ends of the flexible air duct 91 and are equipped with detachable locking devices. When the air conditioning unit and duct system are operating normally, the connectors 92 are connected to the front air duct 2, rear air duct 3, left air duct 4, right air duct 5, or return air duct 6 via detachable locking devices (such as bolts). When disassembly is required, the locking devices are removed, and then the deformation of the flexible air duct 91 allows the connectors 92 on both sides to be detached together with the flexible air duct 91.

[0108] The flexible air duct 91 can be made of rubber material. The connector 92 can be a clamp.

[0109] Depending on the length and angle of the air duct, multiple maintenance structures 9 can be set up to facilitate segmented maintenance.

[0110] The front air duct 2, rear air duct 3, left air duct 4, right air duct 5 and return air duct 6 can be set at the top or bottom of the driver's cab, preferably at the bottom of the driver's cab, and welded together with the driver's cab frame to play a moving load-bearing role.

[0111] A rail vehicle includes a driver's cab, the driver's cab including an air conditioning unit and a driver's cab ventilation system as described in any of the preceding claims.

[0112] This application also provides rail vehicles including the aforementioned driver's cab ventilation system.

[0113] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A driver's cab ventilation system, characterized in that, include: An airflow distribution box (1) is connected to an air conditioning unit at one end. The front air duct (2), rear air duct (3), left air duct (4), right air duct (5) and return air duct (6) are respectively connected to the other end of the air distribution box (1). The outlet of the front air duct (2) is close to the inner wall of the front of the driver's cab and located below the front glass; The outlet of the rear air duct (3) is close to the inner wall of the rear end of the driver's cab; The outlet of the left air duct (4) is close to the left inner wall of the driver's cab and located below the left glass; The outlet of the right-side air duct (5) is close to the right-side inner wall of the driver's cab and located below the right-side glass; The inlet of the return air duct (6) is located in the central cabinet of the driver's cab or on the inner wall of the driver's cab near the air conditioning unit. The airflow distribution box (1) is located at the front end of the driver's cab, and the airflow distribution box (1) includes an end face air outlet (11), a side air outlet (12) and a return air outlet (13). The outlet of the end face air outlet (11) is divided into a first end face air outlet (111) and a second end face air outlet (112), which are respectively connected to the front end air duct (2) and the rear end air duct (3); the outlet of the side air outlet (12) is divided into two side air outlets, which are respectively connected to the left side air duct (4) and the right side air duct (5); the directions of the first end face air outlet (111) and the second end face air outlet (112) are at an angle. The first end face air outlet (111) faces upward, and the second end face air outlet (112) faces to the side; When the inlet of the return air duct (6) is located in the central panel of the driver's cab, the return air duct (6) includes two return air branch pipes (61), and the inlets of the two return air branch pipes (61) are respectively provided with return air components (62), and the return air components (62) are arranged opposite to each other; the inlet of the return air outlet (13) is divided into two return air outlets, which are respectively connected to the two return air branch pipes (61); A splitter plate (14) is used to separate the end face air outlet (11), side air outlet (12) or return air outlet (13). The splitter plate (14) has a bend facing the inlet of the airflow distribution box (1), and the splitter plate on both sides of the bend has an arc for guiding the airflow.

2. The driver's cab ventilation system according to claim 1, characterized in that, The front air duct (2), the rear air duct (3), the left air duct (4), and the right air duct (5) are each provided with an air outlet assembly (7), and the air outlet assembly (7) is provided with at least one nozzle (71); The air outlet components (7) provided in the front air duct (2) and the rear air duct (3) are partially offset from the center line of the cab end face; The air outlet components (7) installed in the left air duct (4) and the right air duct (5) are partially offset from the center line of the cab side direction.

3. The driver's cab ventilation system according to claim 2, characterized in that, The nozzle (71) includes a frame (72), blades (73) and a wind deflector (74). The frame (72) is fixedly connected to the air outlet assembly (7), and the two ends of the blade (73) are fixed inside the frame (72), and the angle of the blade (73) is adjustable; The wind deflector (74) is rotatably disposed within the frame (72) and rotates around the outer periphery of the blade (73).

4. The driver's cab ventilation system according to claim 1, characterized in that, It is also equipped with a waste ventilation system (8).

5. The driver's cab ventilation system according to any one of claims 3-4, characterized in that, The front air duct (2), rear air duct (3), left air duct (4), right air duct (5) and return air duct (6) are each provided with at least one maintenance structure (9). The maintenance structure (9) includes a flexible air duct (91) and two connectors (92), which are respectively located at both ends of the flexible air duct (91) and are equipped with detachable locking components.

6. A rail vehicle, comprising a driver's cab, characterized in that, The driver's cab includes an air conditioning unit and a driver's cab air duct system as described in any one of claims 1-5.

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