Air conditioning system for a rail vehicle and rail vehicle

Abstract

The application discloses an air conditioning system for a rail vehicle and the rail vehicle, and relates to the technical field of vehicle air conditioning. The air conditioning system comprises a conventional fan, a high-pressure fan, a main air duct and an auxiliary air duct. The main air duct is connected to the conventional fan, the conventional fan can send air to the main air duct, and a conventional air outlet is arranged on the main air duct to send air into a vehicle compartment. The auxiliary air duct is connected to the high-pressure fan, the high-pressure fan can send air to the auxiliary air duct, and an induced air supply mechanism is arranged on the auxiliary air duct to send air into the vehicle compartment. Since the high-pressure fan is arranged, the high-pressure fan can be selectively started according to requirements, air is sent into the vehicle compartment through the auxiliary air duct and the induced air supply mechanism, under the high-pressure fan, high static pressure and small air volume air supply can be realized, in the case that the air volume of the main air duct is reduced or kept unchanged, the high-pressure air can be used to drive air disturbance in a large range, the air flow in the vehicle compartment is improved, the air volume in the vehicle compartment does not need to be changed too much, and the comfort in the vehicle compartment is ensured.

Description

Technical Field

[0001] This invention relates to the field of vehicle air conditioning technology, and in particular to an air conditioning system for rail vehicles and a rail vehicle. Background Technology

[0002] Currently, the air conditioning units in high-speed vehicles generally consist of only one conventional fan, which supplies air to the passenger compartment and other cabins through conventional air outlets. However, improving airflow in the passenger compartment usually requires increasing the air volume in the main air duct, which affects the overall comfort of the passenger compartment.

[0003] Therefore, how to improve air circulation in the carriage while ensuring comfort is a technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide an air conditioning system and a rail vehicle for rail vehicles, which can improve the air circulation in the car while ensuring the comfort of the car.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An air conditioning system for rail vehicles includes a conventional fan, a high-pressure fan, and an air duct assembly. The air duct assembly includes a main air duct and an auxiliary air duct. The main air duct is connected to the conventional fan, which supplies air to the main air duct, and the main air duct is provided with a conventional air outlet to supply air into the car body. The auxiliary air duct is connected to the high-pressure fan, which supplies air to the auxiliary air duct, and the auxiliary air duct is provided with an induced air supply mechanism to supply air into the car body.

[0007] Preferably, the air duct assembly further includes a bypass air duct that connects between the main air duct and the auxiliary air duct.

[0008] Preferably, the two auxiliary air ducts are respectively located on both sides of the main air duct.

[0009] Preferably, the high-pressure blower and the conventional blower are assembled in the same body to form a dual-supply air conditioning unit. The dual-supply air conditioning unit is provided with an air conditioning fresh air inlet and an air conditioning return air inlet that are connected to the air inlet of the conventional blower. The air inlet of the high-pressure blower is connected to the air outlet of the conventional blower.

[0010] Preferably, the induced air supply mechanism includes an air supply housing and a nozzle disposed in the air supply housing. The induced air inlet of the air supply housing is connected to the auxiliary air duct. A mixing chamber is located between the nozzle and the induced air outlet in the air supply housing. An induced air return port communicating with the mixing chamber is opened on the air supply housing. The air in the auxiliary air duct enters the air supply housing through the induced air inlet, is pressurized by the nozzle, and can mix with the air entering the air supply housing from the induced air return port before being discharged from the induced air outlet of the air supply housing.

[0011] Preferably, a regulating valve is connected to the induced air outlet or the induced air return outlet to regulate the air volume.

[0012] Preferably, the air supply housing further includes a buffer cavity located between the nozzle and the induced air inlet.

[0013] Preferably, the auxiliary air duct is further connected to a connecting air duct, the connecting air duct extending downwards from the auxiliary air duct, and the induced air supply mechanism is connected to the outlet of the connecting air duct.

[0014] Preferably, the auxiliary air duct is connected to a plurality of the induced air supply mechanisms, and each of the induced air supply mechanisms is arranged sequentially along the extension direction of the auxiliary air duct.

[0015] A rail vehicle, including the air conditioning system described above for rail vehicles.

[0016] The present invention provides an air conditioning system for rail vehicles, comprising a conventional fan, a high-pressure fan, and an air duct assembly; the air duct assembly includes a main air duct and an auxiliary air duct; the main air duct is connected to the conventional fan, the conventional fan can supply air to the main air duct, and the main air duct is provided with a conventional air outlet to supply air into the car; the auxiliary air duct is connected to the high-pressure fan, the high-pressure fan can supply air to the auxiliary air duct, and the auxiliary air duct is provided with an induced air supply mechanism to supply air into the car.

[0017] In addition to conventional fans, this air conditioning system is equipped with high-pressure fans, which can be selectively activated as needed. When activated, the high-pressure fans can deliver air to the passenger compartment through auxiliary ducts and induced air delivery mechanisms. Under the high-pressure fans, high static pressure and low air volume can be achieved. By reducing or maintaining the air volume of the main duct, the high-pressure air can drive air disturbance over a large area, improving the airflow in the passenger compartment without significantly altering the air volume, thus ensuring passenger comfort and allowing for flexible control of the air supply. Furthermore, since the auxiliary ducts can deliver high-pressure, low-volume air, smaller cross-section ducts can be selected, meeting the requirements for flexible layout of auxiliary ducts in small spaces within the vehicle. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0019] Figure 1 This is a front view of a specific embodiment of the air conditioning system provided by the present invention;

[0020] Figure 2 A side view of a specific embodiment of the air conditioning system provided by the present invention;

[0021] Figure 3 This is an internal structural diagram of the induced air supply mechanism of a specific embodiment of the air conditioning system provided by the present invention.

[0022] Figure 4 This is a top view of the air duct assembly layout of a specific embodiment of the air conditioning system provided by the present invention.

[0023] Figure label:

[0024] Dual-supply air conditioning unit 1, high-pressure fan 11, conventional fan 12, air conditioning fresh air inlet 13, air conditioning return air inlet 14;

[0025] Air duct assembly 2, auxiliary air duct 21, main air duct 22, conventional air outlet 221, connecting air duct 23, and bypass air duct 24;

[0026] Induced air supply mechanism 3, air supply housing 31, induced air inlet 311, induced air outlet 312, induced air return outlet 313, mixing chamber 32, buffer chamber 33, nozzle 34, regulating valve 35, air disturbance zone 36;

[0027] Top plate 4;

[0028] Carriage 5. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] The core of this invention is to provide an air conditioning system and a rail vehicle for rail vehicles, which can improve the air circulation in the car while ensuring the comfort of the car.

[0031] For specific embodiments of the air conditioning system for rail vehicles provided by this invention, please refer to... Figure 1 It includes a conventional fan 12, a high-pressure fan 11, and a duct assembly 2. The high-pressure fan 11 has a higher air pressure than the conventional fan 12. The conventional fan 12 is an evaporator fan.

[0032] The air duct assembly 2 includes a main air duct 22 and an auxiliary air duct 21. The main air duct 22 is connected to a conventional fan 12, which supplies air to the main air duct 22, and a conventional air outlet 221 is provided on the main air duct 22 to supply air into the carriage 5. The auxiliary air duct 21 is connected to a high-pressure fan 11, which supplies air to the auxiliary air duct 21, and an induced air supply mechanism 3 is provided on the auxiliary air duct 21 to supply air into the carriage 5. The carriage 5 can specifically be a passenger compartment.

[0033] In this embodiment, in addition to the conventional fan 12, a high-pressure fan 11 is also provided. The high-pressure fan 11 can be selectively activated as needed. When the high-pressure fan 11 is activated, it can deliver air to the passenger compartment through the auxiliary air duct 21 and the induced air supply mechanism 3. Under the high-pressure fan 11, high static pressure and small air volume can be achieved. While reducing the air volume of the main air duct 22 or keeping the air volume of the main air duct 22 unchanged, the high-pressure air can drive air disturbance over a large range, improve the air flow in the car, and at the same time, there is no need to change the air volume in the car too much, ensuring the comfort in the car and flexibly controlling the air supply in the car. In addition, since the auxiliary air duct 21 can deliver air at high pressure and small air volume, a smaller cross-section air duct can be selected, which can meet the flexible layout requirements of the auxiliary air duct 21 in the small space of the car.

[0034] Regarding the settings for air duct component 2, such as Figure 1 As shown, the air duct assembly 2 also includes a bypass air duct 24 connected between the main air duct 22 and the auxiliary air duct 21. The auxiliary air duct 21 can also supply air to the main air duct 22 through the bypass air duct 24, and then supply air from the conventional air outlet 221, thereby directly providing high-pressure air through the conventional air outlet 221. Of course, in this embodiment, due to the presence of the bypass air duct 24, the induced air supply mechanism 3 can be closed in a timely manner, directly supplying air through the conventional air outlet 221.

[0035] In addition, such as Figure 2 and Figure 4 As shown, inside the carriage, both the main air duct 22 and the auxiliary air duct 21 are located above the ceiling 4 of the carriage. Specifically, the two auxiliary air ducts 21 are respectively located on both sides of the main air duct 22, thereby making full use of the space on the ceiling 4. The auxiliary air ducts 21 and the main air duct 22 may have certain differences in height depending on actual needs. Correspondingly, ceiling vents connected to conventional air supply outlets 221 are provided on the ceiling 4 to supply air to the passenger compartment. The induced air supply mechanism 3 can pass downwards and extend below the ceiling 4 to supply air to the passenger compartment.

[0036] Regarding the assembly method of high-pressure blower 11, such as Figure 1 As shown, the high-pressure blower 11 and the conventional blower 12 are assembled in the same unit to form a dual-supply air conditioning unit 1. The dual-supply air conditioning unit 1 is equipped with a fresh air inlet 13 and a return air inlet 14 connected to the air inlet of the conventional blower 12. The air inlet of the high-pressure blower 11 is connected to the air outlet of the conventional blower 12, facilitating the uniform assembly of the blowers in the carriage 5. The high-pressure blower 11 can be connected to the auxiliary air duct 21 via a pipe, or alternatively, the high-pressure blower 11 can be directly installed in the auxiliary air duct 21 for pressurization.

[0037] Regarding the configuration of the induced air supply mechanism 3, such as Figure 2 and Figure 3 As shown, the induced air supply mechanism 3 includes an air supply housing 31 and nozzles 34 disposed within the air supply housing 31. The induced air inlet 311 of the air supply housing 31 is connected to the auxiliary air duct 21. A mixing chamber 32 is located between the nozzles 34 and the induced air outlet 312 within the air supply housing 31. An induced return air inlet 313 is provided on the air supply housing 31, which communicates with the mixing chamber 32, so that air from the carriage can enter the mixing chamber 32 through the induced return air inlet 313.

[0038] The air in the auxiliary air duct 21 enters the air supply housing 31 through the induced air inlet 311, is pressurized by the nozzle 34, mixes with the air entering the air supply housing 31 from the induced return air inlet 313, and is then discharged from the induced air outlet 312 of the air supply housing 31.

[0039] Because nozzle 34 has a pressurizing effect, air can flow into mixing chamber 32 at high speed after passing through nozzle 34, forming a negative pressure in mixing chamber 32. The return air in the passenger compartment is induced to enter mixing chamber 32 through induced return air inlet 313 for gas mixing, and finally sent back into passenger compartment through induced air outlet 312 to achieve auxiliary air supply and further improve the disturbance of air in the carriage.

[0040] A regulating valve 35 is connected to the induced air outlet 312 to adjust the air volume. Specifically, it is an adjusting knob, allowing the operator to freely control the opening and closing of the induced air outlet 312 and the air volume as needed. Of course, in other embodiments, a regulating valve 35 can also be connected to the induced return air outlet 313 to adjust the air volume.

[0041] The air supply housing 31 also includes a buffer chamber 33 located between the nozzle 34 and the induced air inlet 311. Air enters the buffer chamber 33 through the induced air inlet 311. The buffer chamber 33 is a static pressure chamber. After passing through the buffer chamber 33, the air enters the nozzle 34 for pressurization and then enters the mixing chamber 32. Since the buffer chamber 33 separates the nozzle 34 and the induced air inlet 311 and provides assembly space, it facilitates the assembly of the nozzle 34 on the air supply housing 31. Of course, in other embodiments, the nozzle 34 can also be directly mounted on the induced air inlet 311.

[0042] Among them, such as Figure 2 As shown, the auxiliary air duct 21 is also connected to a connecting air duct 23, which extends downwards from the auxiliary air duct 21. The induced air supply mechanism 3 is connected to the outlet of the connecting air duct 23. In addition, the auxiliary air duct 21 is connected to multiple induced air supply mechanisms 3, and each induced air supply mechanism 3 is arranged sequentially along the extension direction of the auxiliary air duct 21 to ensure the air supply efficiency of the auxiliary air duct 21.

[0043] The orientation of the induced air outlet 312 of the induced air supply mechanism 3 can be set as needed. For example, it can be tilted to supply air downwards, or horizontally to supply air horizontally, or vertically to supply air downwards.

[0044] In addition to the air conditioning system for rail vehicles described above, this invention also provides a rail vehicle including an air conditioning system. Specifically, the air conditioning system can be the one provided in any of the above embodiments, and the beneficial effects can be referred to the respective embodiments above. The structure of other parts of this rail vehicle is described in the prior art and will not be repeated here.

[0045] It should be noted that when an element is referred to as "fixing" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as "connecting" another element, it can be directly connected to the other element or there may be an intervening element. Furthermore, in the description of this invention, unless otherwise stated, "multiple," "multiple roots," and "multiple groups" mean two or more.

[0046] The terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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 limiting the invention. Furthermore, the terms "first," "second," and "third" 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.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0048] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0049] The air conditioning system for rail vehicles and the rail vehicles provided by this invention have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this invention. It should be noted that those skilled in the art can make several improvements and modifications to this invention without departing from the principles of this invention, and these improvements and modifications also fall within the protection scope of the claims of this invention.

Claims

1. An air conditioning system for rail vehicles, characterized in that, It includes a conventional fan (12), a high-pressure fan (11), and a duct assembly (2); the duct assembly (2) includes a main duct (22) and an auxiliary duct (21); the main duct (22) is connected to the conventional fan (12), the conventional fan (12) can supply air to the main duct (22), and the main duct (22) is provided with a conventional air outlet (221) to supply air into the carriage (5); the auxiliary duct (21) is connected to the high-pressure fan (11), the high-pressure fan (11) can supply air to the auxiliary duct (21), and the auxiliary duct (21) is provided with an induced air supply mechanism (3) to supply air into the carriage (5).

2. The air conditioning system according to claim 1, characterized in that, The air duct assembly (2) also includes a bypass air duct (24) connected between the main air duct (22) and the auxiliary air duct (21).

3. The air conditioning system according to claim 1, characterized in that, The two auxiliary air ducts (21) are respectively located on both sides of the main air duct (22).

4. The air conditioning system according to claim 1, characterized in that, The high-pressure blower (11) and the conventional blower (12) are assembled in the same body to form a dual-supply air conditioning unit (1). The dual-supply air conditioning unit (1) is provided with an air conditioning fresh air inlet (13) and an air conditioning return air inlet (14) connected to the air inlet of the conventional blower (12). The air inlet of the high-pressure blower (11) is connected to the air outlet of the conventional blower (12).

5. The air conditioning system according to any one of claims 1 to 4, characterized in that, The induced air supply mechanism (3) includes an air supply housing (31) and a nozzle (34) disposed in the air supply housing (31). The induced air inlet (311) of the air supply housing (31) is connected to the auxiliary air duct (21). The air supply housing (31) is located between the nozzle (34) and the induced air outlet (312) of the air supply housing (31) as a mixing chamber (32). An induced return air outlet (313) communicating with the mixing chamber (32) is opened on the air supply housing (31). The air in the auxiliary air duct (21) enters the air supply housing (31) through the induced air inlet (311), is pressurized by the nozzle (34), and can mix with the air entering the air supply housing (31) from the induced return air outlet (313) and then be discharged from the induced air outlet (312).

6. The air conditioning system according to claim 5, characterized in that, A regulating valve (35) is connected to the induced air outlet (312) or the induced air return outlet (313) to regulate the air volume.

7. The air conditioning system according to claim 5, characterized in that, The air supply housing (31) also includes a buffer cavity (33) located between the nozzle (34) and the induced air inlet (311).

8. The air conditioning system according to claim 5, characterized in that, The auxiliary air duct (21) is also connected to a connecting air duct (23), which extends downwards from the auxiliary air duct (21), and the induced air supply mechanism (3) is connected to the outlet of the connecting air duct (23).

9. The air conditioning system according to claim 5, characterized in that, The auxiliary air duct (21) is connected to a plurality of the induced air supply mechanisms (3), and each of the induced air supply mechanisms (3) is arranged sequentially along the extension direction of the auxiliary air duct (21).

10. A rail vehicle, characterized in that, Includes the air conditioning system for rail vehicles as described in any one of claims 1 to 9.

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