Air conditioning unit and air conditioning system of railway vehicle cab

Abstract

The utility model relates to an air conditioning unit and an air conditioning system for a railway vehicle cab, the air conditioning unit comprises a shell, an air supply cavity, a mixed air cavity and a condensation cavity are separated in the shell, a waste discharge cavity is also separated in the shell, the waste discharge cavity is provided with a waste discharge air inlet and a waste discharge air outlet, and the waste discharge air inlet is communicated with the waste discharge air outlet. A waste exhaust fan is mounted on the waste exhaust air flow path. The waste discharge device is integrally installed on the cab air conditioning unit, no waste discharge device needs to be additionally installed on the carriage air conditioning unit, the original waste discharge function of the waste discharge device is achieved, the roof space above the carriage is saved, meanwhile, the air conditioning unit is reasonable and compact in structural layout, and the cost is reduced. The size and occupied space of the air conditioning unit are reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of air conditioning equipment, and in particular to an air conditioning unit and air conditioning system for a rail vehicle driver's cab. Background Technology

[0002] Because trams and other rail vehicles have a large passenger capacity and require a large amount of oxygen, their fresh air volume accounts for a large proportion of the total air supply volume, generally between 20% and 40%. While introducing fresh air, the same amount of air inside the vehicle is discharged from the vehicle body, which is called exhaust air.

[0003] Traditional rail vehicle air conditioning systems utilize exhaust venting devices to expel exhaust gases. These devices include active and passive exhaust venting systems. To improve exhaust efficiency, more and more rail vehicles are equipped with active exhaust venting systems. There are two main ways to install active exhaust venting systems: one is to integrate the system into the air conditioning unit on the roof of the car, which requires a larger passenger compartment air conditioning unit and occupies more roof space; the other is to install the exhaust venting system separately on or under the car, which also has the drawback of occupying significant space on or under the car. Utility Model Content

[0004] The main technical problem solved by this utility model is to provide an air conditioning unit for the driver's cab of a rail vehicle that is conducive to saving roof space, and at the same time, to provide a rail vehicle air conditioning system that is equipped with the air conditioning unit for the driver's cab of the rail vehicle.

[0005] To solve the aforementioned technical problem, the basic concept of the technical solution adopted by this utility model is as follows:

[0006] An air conditioning unit for a railway vehicle driver's cab includes a housing, within which an air supply chamber, a mixing chamber, and a condensation chamber are separated. The housing also contains a waste discharge chamber, which has a waste discharge inlet and a waste discharge outlet. A waste discharge fan is installed along the waste discharge airflow path.

[0007] Furthermore, the waste discharge chamber and the condensation chamber are arranged adjacent to each other, and the waste discharge air outlet is opened on the first partition between the waste discharge chamber and the condensation chamber. A condenser fan is installed in the condensation chamber and is used as a waste discharge fan to guide the flow of waste air.

[0008] Furthermore, the condensation chamber is located at one end of the housing, and a condensation air outlet is opened on the end plate at that end of the housing, and the condenser fan is mounted on the end plate at that end.

[0009] Furthermore, the waste discharge chamber is located at one end of the housing, the waste discharge outlet is opened on the end plate at that end of the housing, and a waste discharge fan is installed in the waste discharge chamber to guide the flow of waste air.

[0010] Furthermore, the waste exhaust fan is mounted on the end plate of the housing where the waste exhaust outlet is located.

[0011] Furthermore, the condensation chamber is located at the other end of the housing, and a condensation air outlet is opened on the end plate at that end of the housing, with the condenser fan mounted on the end plate at that end.

[0012] Furthermore, an air supply port is provided on the housing of the air supply chamber, an air return port is provided on the housing of the mixing air chamber, and a condensation air inlet is provided on the housing of the condensation chamber. The air supply port, the air return port, and the condensation air inlet are provided on the side plate on the same side of the housing.

[0013] Furthermore, a waste exhaust valve for adjusting the waste exhaust volume is installed at the waste exhaust outlet.

[0014] Furthermore, the waste discharge chamber and the mixing air chamber are arranged adjacent to each other. The waste discharge inlet is located on the bottom plate of the waste discharge chamber shell. An electrical control box is installed above the waste discharge inlet. Part of the electrical control box is placed in the waste discharge chamber and another part is placed in the mixing air chamber. The electrical control box is fixed to the top plate of the shell by a mounting bracket. A second partition is installed between the waste discharge inlet and the electrical control box to separate the mixing air chamber from the waste discharge chamber.

[0015] To solve the aforementioned other technical problem, the basic concept of the technical solution adopted by this utility model is as follows:

[0016] A rail vehicle air conditioning system includes a car air conditioning unit and a driver's cab air conditioning unit, wherein the driver's cab air conditioning unit adopts the rail vehicle driver's cab air conditioning unit as described above.

[0017] In summary, the air conditioning unit and system for a rail vehicle driver's cab provided by this utility model have the following advantages compared with the prior art:

[0018] (1) This utility model integrates the waste discharge device in the air conditioning system of rail vehicles into the air conditioning unit in the driver's cab to realize active waste gas discharge. There is no need to install a separate waste discharge device on the air conditioning unit in the carriage. This can realize the original waste discharge function of the waste discharge device, and there is no need to increase the volume of the air conditioning unit in the carriage, which is conducive to saving the roof space above the carriage.

[0019] (2) The structure of this utility model is reasonable and compact, which helps to reduce the volume of the air conditioning unit and reduce the space occupied by the air conditioning unit.

[0020] (3) The present invention sets the exhaust chamber and the condensation chamber adjacent to each other, so that the exhaust air is heat exchanged through the condenser and then discharged to the outside of the vehicle through the condenser outlet. The relatively low temperature indoor exhaust air is used to exchange heat with the high temperature refrigerant in the condenser, which is beneficial to improve the heat exchange efficiency of the condenser and improve the energy efficiency ratio of the air conditioning unit.

[0021] (4) In this utility model, instead of installing a separate exhaust fan in the exhaust chamber, a condenser fan is used as the exhaust fan to guide the exhaust air flow. This simplifies the structure of the air conditioning unit, reduces the volume of the air conditioning unit, and also reduces the cost of the air conditioning unit.

[0022] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0023] The accompanying drawings, as part of this utility model, are used to provide a further understanding of the present utility model. The illustrative embodiments and descriptions of the present utility model are used to explain the present utility model, but do not constitute an undue limitation of the present utility model. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0024] In the attached diagram:

[0025] Figure 1 This is a schematic diagram of the air conditioning unit structure according to Embodiment 1 of this utility model;

[0026] Figure 2 yes Figure 1 A bottom view;

[0027] Figure 3 yes Figure 1 Side view;

[0028] Figure 4 This is a schematic diagram of the air conditioning unit structure according to Embodiment 2 of this utility model;

[0029] Figure 5 yes Figure 4 A bottom view.

[0030] In the picture:

[0031] 1. Housing, 1a, 1b, 1c, 1d, 2. Air supply chamber, 3. Mixing chamber, 4. Condensation chamber, 5. Waste exhaust chamber, 6. Air supply fan, 7. Evaporator, 8. Air supply outlet, 9. Air return outlet, 10. Fresh air inlet, 11. Waste exhaust inlet, 12. Compressor, 13. Condenser, 14. Condensing fan, 15. Waste exhaust fan, 16. Condensing inlet, 17. Condensing outlet, 18. First partition, 19. Waste exhaust valve, 20. Second partition, 21. Electrical control box, 22. Third partition, 23. Mounting bracket, 24.

[0032] It should be noted that the accompanying drawings and text description are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0034] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", and "outer" 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 utility model 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 utility model.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] Example 1:

[0037] like Figures 1 to 3 As shown, this embodiment provides a rail vehicle air conditioning system, including a car air conditioning unit installed on the top of each car and a driver's cab air conditioning unit installed in the driver's cab.

[0038] The air conditioning unit for the driver's cab of the rail vehicle provided in this embodiment includes a housing 1. An air supply chamber 2, a mixing chamber 3, a condensing chamber 4, and a waste exhaust chamber 5 are provided inside the housing 1. An air supply fan 6 and an evaporator 7 are installed in the air supply chamber 2. An air supply outlet 8 is opened on the housing 1 of the air supply chamber 2. A return air outlet 9 and a fresh air outlet 10 are opened on the housing 1 of the mixing chamber 3. A waste exhaust air inlet 11 and a waste exhaust air outlet 12 are opened on the housing 1 of the waste exhaust chamber 5. A waste exhaust fan 16 is installed in the path of the waste exhaust air flow. A compressor 13, a condenser 14, and a condensing fan 15 are installed in the condensing chamber 4. A condensing air inlet 17 and a condensing air outlet 18 are opened on the housing 1 of the condensing chamber 4.

[0039] In this embodiment, the waste discharge device in the rail vehicle air conditioning system is integrated into the driver's cab air conditioning unit to achieve active waste gas discharge. There is no need to install a separate waste discharge device on the car air conditioning unit. This not only realizes the original waste discharge function of the waste discharge device, but also does not increase the volume of the car air conditioning unit, which helps to save the roof space above the car.

[0040] In this embodiment, it is further preferred that the waste discharge chamber 5 and the condensation chamber 4 are arranged adjacent to each other, and the waste discharge chamber 5 and the mixing air chamber 3 are also arranged adjacent to each other. The air supply chamber 2, the mixing air chamber 3, the waste discharge chamber 5 and the condensation chamber 4 are connected from the first end of the shell 1 in the length direction. Figure 1 From the left end to the second end Figure 1 The air conditioning unit is arranged sequentially along its length (one end on the right side of the unit). The condenser 4 is located at the second end of the housing 1, and the air supply chamber 2 is located at the first end of the housing 1. The evaporator 7 and condenser 14 extend along the width of the housing 1. The evaporator 7 is mounted on the third partition 23 between the air supply chamber 2 and the mixing chamber 3. This design allows for a more compact structure of the driver's cab air conditioning unit, reducing its height and volume, and consequently minimizing space requirements.

[0041] In this embodiment, the exhaust air inlet 11 is located on the bottom plate (not shown in the figure) of the housing 1, and the exhaust air outlet 12 is located on the first partition 19 between the exhaust chamber 5 and the condenser chamber 4. The exhaust gas from the interior enters the exhaust chamber 5 through the exhaust air inlet 11 at the bottom, then exits through the exhaust air outlet 12 on one side into the condenser chamber 4, and finally exits through the condenser outlet 18 to the outside of the vehicle. Because the temperature of the exhaust air inside the vehicle is lower than the temperature of the outside environment, after entering the condenser chamber 4, the exhaust air passes through the condenser 14 and is then exited through the condenser outlet 18. The lower-temperature exhaust air exchanges heat with the high-temperature refrigerant in the condenser 14, which helps to improve the heat exchange efficiency of the condenser 14 and increase the energy efficiency ratio of the air conditioning unit.

[0042] In this embodiment, and even more preferably, the exhaust fan 16 is not installed separately in the exhaust chamber 5, but is integrated with the condenser fan 15. That is, the condenser fan 15 is used as the exhaust fan to guide the flow of exhaust air. When the condenser fan 15 is started, it acts as the exhaust fan, drawing exhaust air from the driver's cab. This simplifies the structure of the air conditioning unit, reduces its size, and also lowers its cost.

[0043] In this embodiment, a waste exhaust valve 20 is installed at the waste exhaust vent 12 on the first partition 19. The waste exhaust volume is adjusted by regulating the opening of the waste exhaust valve 20, so that the waste exhaust volume in the driver's cab is adjusted according to the indoor load during normal cooling and heating operation. The air conditioning unit controller's memory stores the correspondence between the air conditioning unit's operating mode and the opening of the waste exhaust valve 20. During pre-cooling, pre-heating, indoor / outdoor fire, shutdown, and car wash modes, the waste exhaust valve 20 is controlled to close. During ventilation and emergency ventilation modes, the waste exhaust valve 20 is controlled to open to its maximum state. During cooling and heating modes, the opening of the waste exhaust valve 20 is automatically adjusted according to the load.

[0044] In this embodiment, the condensing chamber 4 is located at the end of the second end of the housing 1. More preferably, a condensing air outlet 18 is formed on the end plate 1c at the second end of the housing 1, and the condensing fan 15 is side-mounted on the end plate 1c at the second end corresponding to the condensing air outlet 18. Setting the condensing air outlet 18 on the end plate 1c and side-mounting the condensing fan 15 on the end plate 1c further facilitates a more compact structure for the driver's cab air conditioning unit, reduces the height of the driver's cab air conditioning unit, and reduces its volume.

[0045] In this embodiment, more preferably, the air supply outlet 8 is disposed on the side plate 1a of the housing 1, the return air outlet 9 is disposed on the same side plate 1a as the air supply outlet 8, and the fresh air outlet 10 is disposed on the opposite side plate 1b. The condenser air inlet 17 is also disposed on the side plate 1a on the same side as the air supply outlet 8 and the return air outlet 9. This facilitates connection between the air supply duct and return air duct (not shown in the figure) in the driver's cab and the indoor air supply outlet and return air outlet in the driver's cab, reducing the length of the air supply duct and return air duct, thereby helping to reduce pressure loss during air supply.

[0046] In this embodiment, it is further preferred that the waste exhaust chamber 5 and the mixing air chamber 3 are arranged adjacent to each other, the waste exhaust inlet 11 is arranged on the bottom plate of the housing 1 of the waste exhaust chamber 5, and an electrical control box 22 is installed above the waste exhaust inlet 11. The right side of the electrical control box 22 is placed in the waste exhaust chamber 5, and the left side is placed in the mixing air chamber 3. The relatively low temperature of the waste exhaust air entering from the waste exhaust inlet 11 and the indoor return air entering from the return air inlet 9 are used to cool the electrical control box 22. This not only ensures the safe and reliable operation of the electrical control box 22, but also helps to simplify the structure of the air conditioning unit and reduce costs.

[0047] In this embodiment, the electrical control box 22 is fixed to the top plate of the housing 1 by the mounting bracket 24. The top of the electrical control box 22 is sealed to the top plate of the housing 1. The electrical control box 22 can be used to separate the mixing air chamber 3 from the waste discharge chamber 5. A second partition 21 is installed between the waste discharge inlet 11 and the electrical control box 22. The second partition 21 is sealed to the bottom plate, side plate 1a, side plate 1b of the housing 1 and the box body of the electrical control box 22. The second partition 21 is used to separate the mixing air chamber 3 from the waste discharge chamber 5.

[0048] In this embodiment, a controller (not shown in the figure) is installed inside the electrical control box 22. The controller has a memory for storing control logic information, a data acquisition module, a judgment and analysis module, and an output module. The data acquisition module is used to collect information such as indoor temperature, outdoor temperature, and coil temperature. The judgment and analysis module is used to determine the current operating mode of the air conditioning unit based on the collected data and the control logic, and outputs the result to the corresponding components through the output module, controlling the corresponding components to operate according to the operating state corresponding to the operating mode.

[0049] The above solution has the following beneficial effects:

[0050] 1. This air conditioning system integrates the waste discharge device from the rail vehicle air conditioning system into the driver's cab air conditioning unit, realizing active waste gas discharge. There is no need to install a separate waste discharge device on the car air conditioning unit. This can realize the original waste discharge function of the waste discharge device without increasing the volume of the car air conditioning unit, which helps to save the roof space above the car.

[0051] 2. The driver's cab air conditioning unit has the exhaust chamber 5 and the condenser chamber 4 arranged adjacent to each other, so that the exhaust air is heat exchanged through the condenser 14 and then discharged to the outside of the vehicle through the condenser outlet 18. The relatively low temperature of the indoor exhaust air is used to exchange heat with the high temperature refrigerant in the condenser 14, which is conducive to improving the heat exchange efficiency of the condenser 14 and improving the energy efficiency ratio of the air conditioning unit.

[0052] 3. The air conditioning unit in the driver's cab does not have a separate exhaust fan 16 installed in the exhaust chamber 5. Instead, the condenser fan 15 is used as the exhaust fan to guide the exhaust air flow. This simplifies the structure of the air conditioning unit, reduces its volume, and also lowers its cost.

[0053] 4. The driver's cab air conditioning unit has a reasonable and compact structure, which helps to reduce the size of the air conditioning unit and the space it occupies.

[0054] Example 2:

[0055] like Figure 4 and Figure 5As shown, the difference from Embodiment 1 is that in this embodiment, the driver's cab air conditioning unit includes a housing 1. Inside the housing 1 are an air supply chamber 2, a mixing chamber 3, a condensing chamber 4, and a waste exhaust chamber 5. An air supply fan (not shown) and an evaporator 7 are installed in the air supply chamber 2. An air supply outlet 8 is provided on the housing 1 of the air supply chamber 2. A return air outlet 9 and a fresh air outlet 10 are provided on the housing 1 of the mixing chamber 3. A waste exhaust inlet 11 and a waste exhaust outlet 12 are provided on the housing 1 of the waste exhaust chamber 5. A waste exhaust fan (not shown) is installed in the waste exhaust chamber 5, directly guiding the flow of waste exhaust air. A compressor (not shown), a condenser 14, and a condenser fan (not shown) are installed in the condensing chamber 4. A condenser inlet (not shown) and a condenser outlet 18 are provided on the housing 1 of the condensing chamber 4.

[0056] In this embodiment, the condensation chamber 4, the air supply chamber 2, the mixing chamber 3, and the waste discharge chamber 5 are located at the first end along the length of the housing 1. Figure 4 From the left end to the second end Figure 4 The air conditioning unit is arranged sequentially along its length (one end on the right side). The condenser chamber 4 is located at the first end of the housing 1, and the waste exhaust chamber 5 is located at the second end of the housing 1. The evaporator 7 and condenser 14 extend along the width of the housing 1. The evaporator 7 is mounted on the third partition 23 between the air supply chamber 2 and the mixing chamber 3. The condenser outlet 18 is located on the end plate 1d of the housing 1, and the condenser fan 15 is mounted on the end plate 1d corresponding to the condenser outlet 18. The waste exhaust outlet 12 is located on the end plate 1c of the housing 1, and the waste exhaust fan is mounted on the end plate 1c corresponding to the waste exhaust outlet 12. This layout also helps to make the driver's cab air conditioning unit structure more compact, reducing the height and volume of the unit, thus reducing the space occupied.

[0057] In this embodiment, the exhaust air inlet 11 is opened on the bottom plate (not shown in the figure) of the housing 1. The exhaust gas in the room enters the exhaust chamber 5 from the exhaust air inlet 11 at the bottom, and then is discharged to the outside of the vehicle from the exhaust air outlet 12 on one side.

[0058] In this embodiment, a waste exhaust valve 20 is also installed at the waste exhaust vent 12. The waste exhaust volume is adjusted by regulating the opening of the waste exhaust valve 20, so that the waste exhaust volume in the driver's cab is adjusted according to the indoor load during normal cooling and heating operation. The air conditioning unit controller's memory stores the correspondence between the air conditioning unit's operating mode and the opening of the waste exhaust valve 20. During pre-cooling, pre-heating, indoor / outdoor fire, shutdown, and car wash modes, the waste exhaust valve 20 is closed. During ventilation and emergency ventilation modes, the waste exhaust valve 20 is opened to its maximum state. During cooling and heating modes, the opening of the waste exhaust valve 20 is automatically adjusted according to the load.

[0059] In this embodiment, it is further preferred that the air supply outlet 8, the return air outlet 9, and the condenser air inlet 17 are all installed on the side plate 1a on the same side of the housing 1. This facilitates connection with the indoor air supply outlet and return air outlet in the driver's cab through the air supply duct and return air duct (not shown in the figure) in the driver's cab, reducing the length of the air supply duct and return air duct, and thus helping to reduce pressure loss during air supply.

[0060] In this embodiment, similar to Embodiment 1, the waste exhaust chamber 5 and the mixing air chamber 3 are arranged adjacent to each other. The waste exhaust inlet 11 is set on the bottom plate of the housing 1 of the waste exhaust chamber 5. An electrical control box (not shown in the figure) is installed above the waste exhaust inlet 11. The right side of the electrical control box is placed in the waste exhaust chamber 5, and the left side is placed in the mixing air chamber 3. The relatively low temperature waste exhaust air entering from the waste exhaust inlet 11 and the indoor return air entering from the return air inlet 9 are used to cool the electrical control box. This not only ensures the safe and reliable operation of the electrical control box, but also helps to simplify the structure of the air conditioning unit and reduce costs.

[0061] In this embodiment, the electrical control box is fixed to the top plate of the housing 1 by a mounting bracket. The top of the electrical control box is sealed to the top plate of the housing 1. The electrical control box can be used to separate the mixing air chamber 3 from the waste discharge chamber 5. A second partition 21 is installed between the waste discharge inlet 11 and the electrical control box. The second partition 21 is sealed to the bottom plate, side plate 1a, side plate 1b of the housing 1 and the box body of the electrical control box 22. The second partition 21 is used to separate the mixing air chamber 3 from the waste discharge chamber 5.

[0062] In this embodiment, the waste discharge device in the rail vehicle air conditioning system is also integrated into the driver's cab air conditioning unit to achieve active waste gas discharge. There is no need to install a separate waste discharge device on the car air conditioning unit. This not only realizes the original waste discharge function of the waste discharge device, but also does not increase the volume of the car air conditioning unit, which helps to save the roof space above the car.

[0063] The driver's cab air conditioning unit in this embodiment has a reasonable and compact structure, which also helps to reduce the size of the air conditioning unit and the space it occupies.

[0064] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. The implementation schemes in the above embodiments can be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A rail vehicle cab air conditioning unit comprising a housing in which a supply air chamber, a mixed air chamber and a condensation chamber are partitioned, characterized in that: A waste exhaust chamber is also partitioned in the shell, and has a waste exhaust air inlet and a waste exhaust air outlet, and a waste exhaust fan is installed on the waste exhaust air flow path.

2. The air conditioning pack for a driver's cab of a rail vehicle according to claim 1, characterized in that: The waste exhaust chamber is arranged adjacent to the condensation chamber, the waste exhaust air outlet is formed on a first partition plate between the waste exhaust chamber and the condensation chamber, a condensation fan is installed in the condensation chamber, and the condensation fan is used as a waste exhaust fan to guide the waste exhaust air flow.

3. The air conditioning pack for a driver's cab of a rail vehicle according to claim 2, characterized in that: The condensation chamber is arranged at one end of the shell, a condensation air outlet is formed on an end plate of the end of the shell, and the condensation fan is side-mounted on the end plate of the end.

4. The air conditioning pack for a driver's cab of a rail vehicle according to claim 1, characterized in that: The waste exhaust chamber is arranged at one end of the shell, the waste exhaust air outlet is formed on an end plate of the end of the shell, and a waste exhaust fan is installed in the waste exhaust chamber to guide the waste exhaust air flow.

5. The air conditioning pack for a driver's cab of a rail vehicle according to claim 4, characterized in that: The waste exhaust fan is side-mounted on the end plate of the shell on which the waste exhaust air outlet is formed.

6. The air conditioning pack for a cab of a rail vehicle according to claim 2, characterized in that: The condensation chamber is arranged at the other end of the shell, a condensation air outlet is formed on an end plate of the end of the shell, and the condensation fan is side-mounted on the end plate of the end.

7. The air conditioning pack for a rail vehicle cab according to claim 1, characterized in that: An air supply outlet is formed on the shell of the air supply chamber, an air return inlet is formed on the shell of the mixed air chamber, and a condensation air inlet is formed on the shell of the condensation chamber, and the air supply outlet, the air return inlet and the condensation air inlet are formed on the same side plate of the shell.

8. The air conditioning pack for a rail vehicle cab according to claim 1, characterized in that: A waste exhaust air valve is installed at the waste exhaust air outlet to adjust the waste exhaust air volume.

9. The air conditioning pack for a driver's cab of a rail vehicle according to any one of claims 1 to 8, characterized in that: The waste exhaust chamber is arranged adjacent to the mixed air chamber, the waste exhaust air inlet is formed on a bottom plate of the shell of the waste exhaust chamber, an electric control box is installed above the waste exhaust air inlet, a part of the electric control box is arranged in the waste exhaust chamber and another part is arranged in the mixed air chamber, the electric control box is fixed on a top plate of the shell by a mounting bracket, and a second partition plate is installed between the waste exhaust air inlet and the electric control box to separate the mixed air chamber from the waste exhaust chamber.

10. A rail vehicle air conditioning system, characterized by: The driver's cabin air conditioning unit comprises a vehicle cabin air conditioning unit and a driver's cabin air conditioning unit, and the driver's cabin air conditioning unit is the rail vehicle driver's cabin air conditioning unit according to any one of claims 1-9.

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