An air conditioning unit for straddle-type monorail vehicles and a straddle-type monorail vehicle

Abstract

The utility model provides a kind of air conditioning unit and straddle-type monorail vehicle for straddle-type monorail vehicle, it is related to railway vehicle technical field.Air conditioning unit includes shell and is arranged in evaporimeter, condenser, air supply mechanism and drainage mechanism in shell, shell inside is separated into evaporative cavity and condensing cavity by partition;Evaporative cavity is arranged close to car body end portion in the length direction of vehicle, condensing cavity is arranged close to car body middle part in the length direction of vehicle;Evaporimeter and condenser are respectively arranged in evaporative cavity and condensing cavity;Air supply mechanism's air supply damper and return air damper are all built into the air conditioning cavity of shell;Drainage mechanism includes condensing drain pipe, and condensing drain pipe is arranged below evaporimeter.By partition separating chamber and adjusting position, make air conditioning unit weight distribution more reasonable, simultaneously built-in damper design releases the space of passenger room two sides.

Description

Technical Field

[0001] This utility model relates to the field of rail transit technology, and more specifically, to an air conditioning unit for straddle-type monorail vehicles and the straddle-type monorail vehicle itself. Background Technology

[0002] Existing straddle-type monorail vehicle air conditioning systems suffer from several technical defects. For example, in terms of structural layout, traditional air conditioning units employ an integrated design, resulting in excessive height and requiring significant overhead space for installation. This severely reduces the usable height of the passenger compartment ceiling, directly impacting passenger comfort. Regarding weight distribution, existing air conditioning units are typically centrally located in the passenger compartment. This placement, situated precisely in the center of the bogies at both ends, fails to effectively balance axle load distribution between the bogies, affecting vehicle stability. In terms of space utilization, traditional designs employ a dual-sided air supply mode, requiring air ducts to occupy valuable space on both sides of the passenger compartment. This not only encroaches on installation space for lighting and other equipment but also wastes space in the central area of ​​the passenger compartment. Utility Model Content

[0003] The purpose of this invention is to provide an air conditioning unit for straddle-type monorail vehicles, which optimizes the spatial layout and improves the stability of vehicle operation.

[0004] To address the aforementioned problems, this utility model provides an air conditioning unit for straddle-type monorail vehicles and a straddle-type monorail vehicle.

[0005] In a first aspect, this utility model provides an air conditioning unit for straddle-type monorail vehicles, including a housing and an evaporator, a condenser, an air supply mechanism, and a drainage mechanism disposed within the housing. The interior of the housing is divided into an evaporation chamber and a condensation chamber by a partition. The evaporation chamber is arranged near the end of the vehicle body along the length of the vehicle, and the condensation chamber is arranged near the middle of the vehicle body along the length of the vehicle. The evaporator and the condenser are respectively disposed within the evaporation chamber and the condensation chamber. The air supply mechanism includes an air supply damper and a return air damper, both of which are disposed within the evaporation chamber of the housing. The drainage mechanism includes a condensate drain pipe, which is disposed below the evaporator.

[0006] The beneficial effects of the air conditioning unit for straddle-type monorail vehicles of this invention are:

[0007] The housing is divided into two independent chambers by a partition. The evaporator is located in the evaporator chamber near the end of the vehicle body, and the condenser is located in the condenser chamber near the middle of the vehicle body. The supply and return air dampers are integrated inside the housing, connecting to the outside environment through their opening and closing. The condensate drain pipe is installed at an angle along the bottom of the evaporator, using gravity to guide the condensate into the vehicle's external drainage system. During vehicle operation, the end-positioning of the evaporator chamber helps balance the bogie axle load, while the built-in dampers reduce the space occupied by the passenger compartment ceiling. The partition separating the chambers and adjusting their positions allows for a more rational weight distribution of the air conditioning unit, while the built-in damper design frees up space on both sides of the passenger compartment. Furthermore, the condenser chamber's location near the middle of the vehicle reduces the overall height of the unit, avoiding interference with the interior ceiling. By optimizing the positional layout of the evaporator and condenser chambers, the bogie axle load distribution is balanced.

[0008] Optionally, the evaporator includes two sets, which are arranged in a V-shape or inverted V-shape within the evaporation chamber, wherein the V-shaped surface is parallel to the horizontal plane.

[0009] Optionally, the included angle between the two sets of evaporators ranges from 60° to 120°.

[0010] Optionally, the condensate drain pipe is arranged at an angle and is positioned corresponding to the evaporator; the end of the condensate drain pipe away from the evaporator is connected to the outside of the vehicle via a water removal pipe.

[0011] Optionally, the fin spacing of the evaporator facing the return air damper is greater than the fin spacing away from the return air damper.

[0012] Optionally, the air supply damper is located on the opening side of the evaporator, which is arranged in a V-shape or an inverted V-shape.

[0013] Optionally, the lower part of the housing is formed with an air supply outlet and a return air outlet; the air supply damper is disposed in the air supply outlet; the return air damper is disposed in the return air outlet.

[0014] Optionally, the air supply system also includes a main air supply duct located at the top of the passenger compartment. The main air supply duct is arranged in the central area of ​​the passenger compartment along the length of the vehicle, and multiple air outlets are provided at the bottom of the main air supply duct. The main air supply duct is connected to the air outlets through flexible air ducts.

[0015] Secondly, this utility model provides a straddle-type monorail vehicle, including an air conditioning unit for the straddle-type monorail vehicle.

[0016] Alternatively, the air conditioning unit may be installed off-center from the center of the passenger compartment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the internal structure of the air conditioning unit in an embodiment of this utility model;

[0018] Figure 2 This is a side view of the air conditioning unit in an embodiment of the present utility model;

[0019] Figure 3 This is an example of an air conditioning unit in an embodiment of this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Shell; 2. Evaporation chamber; 3. Condensation chamber; 4. Evaporator; 5. Condenser; 6. Return air damper; 7. Supply air damper; 8. Drain pipe; 9. Supply air outlet; 10. Return air outlet; 11. Condensate drain pipe. Detailed Implementation

[0022] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Although some embodiments of this utility model are shown in the drawings, it should be understood that this utility model can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this utility model. It should be understood that the drawings and embodiments of this utility model are for illustrative purposes only and are not intended to limit the scope of protection of this utility model.

[0023] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; and the term "optionally" means "optional embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first," "second," etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0024] It should be noted that the terms "one" and "multiple" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0025] like Figure 1-3As shown in the figure, an air conditioning unit for a straddle-type monorail vehicle provided by this utility model includes a housing 1 and an evaporator 4, a condenser 5, an air supply mechanism, and a drainage mechanism disposed within the housing 1. The interior of the housing 1 is divided into an evaporation chamber 2 and a condensation chamber 3 by a partition. The evaporation chamber 2 is arranged near the end of the vehicle body in the length direction of the vehicle, and the condensation chamber 3 is arranged near the middle of the vehicle body in the length direction of the vehicle. The evaporator 4 and the condenser 5 are respectively disposed in the evaporation chamber 2 and the condensation chamber 3. The air supply damper 7 and the return air damper 6 of the air supply mechanism are both built into the air conditioning cavity of the housing 1. The drainage mechanism includes a condensate drain pipe 11, which is arranged below the evaporator 4.

[0026] The partition refers to a rigid structure used to separate the internal space of the housing 1. It can be made of metal or composite materials and its function is to isolate the working areas of the evaporator 4 and condenser 5, preventing airflow interference. The arrangement of the evaporator chamber 2 and condenser chamber 3 refers to placing the evaporator chamber 2 near the end of the vehicle body and the condenser chamber 3 near the middle of the vehicle body, according to the vehicle's axle load distribution requirements. This can be achieved by adjusting the partition's installation position to balance the bogie load. The built-in air supply damper 7 and return air damper 6 means that the damper assembly is integrated into the evaporator chamber 2 of the housing 1. This can be achieved using a flap-type or louvered structure to reduce external space occupation. The inclined arrangement of the condensate drain pipe 11 means that the drain pipe extends along the bottom of the evaporator 4 at a certain slope. This can be achieved using plastic or metal pipes to facilitate rapid drainage of condensate.

[0027] Specifically, a partition divides the housing 1 into two independent chambers: the evaporator 4 is located in the evaporator chamber 2 near the end of the vehicle body, and the condenser 5 is located in the condenser chamber 3 near the middle of the vehicle body. The supply air damper 7 and return air damper 6 are integrated inside the housing 1, and their opening and closing states are controlled to adjust the airflow direction. The condensate drain pipe 11 is installed at an angle along the bottom of the evaporator 4, using gravity to guide the condensate into the vehicle's external drainage system. When the vehicle is running, the layout of the evaporator chamber 2 near the end balances the bogie axle load, while the built-in dampers reduce the space occupied by the overhead space in the passenger compartment. Compared with existing technologies, traditional air conditioning units use a single-chamber structure and are centrally located, resulting in uneven axle load distribution and low space utilization. This embodiment uses a partition to separate the chambers and adjust their positions, making the weight distribution of the air conditioning unit more reasonable, while the built-in damper design frees up space on both sides of the passenger compartment. Furthermore, the placement of the condenser chamber 3 near the middle of the vehicle reduces the overall height of the unit, avoiding conflict with the interior ceiling. This embodiment reduces the overall height of the air conditioning unit, minimizing its impact on the vertical space of the passenger compartment; by optimizing the positional layout of the evaporator chamber 2 and the condenser chamber 3, the axle load distribution of the bogie is balanced; the built-in air supply mechanism and reasonable chamber partitioning improve the utilization rate of the passenger compartment ceiling space and reserve installation positions for equipment such as lights.

[0028] Optionally, the evaporator 4 includes two sets, which are arranged in a V-shape or inverted V-shape within the evaporation chamber 2, wherein the V-shaped surface is parallel to the horizontal plane.

[0029] The V-shaped or inverted V-shaped inclined arrangement refers to two sets of evaporators 4 tilting symmetrically to both sides to form an angle. This can be achieved by adjusting the installation angle or setting up a support structure. This arrangement can increase the heat exchange area and optimize the airflow path. The evaporation chamber 2, as the space to accommodate the evaporators 4, needs to be structured to adapt to the inclined arrangement. This can be achieved by adjusting the shape of the baffle or setting up an inclined mounting bracket, thereby providing stable support for the evaporators 4.

[0030] Specifically, the two sets of evaporators 4 form a symmetrical inclined structure within the evaporation chamber 2, creating a multi-directional flow path as the airflow passes over the surface of the evaporators 4. Because the overall height of the evaporators 4 is reduced due to the tilt, the vertical space occupied by the air conditioning unit on the vehicle roof is compressed. The inclined arrangement also allows condensate to naturally slide down the surface of the evaporators 4 to the drainage mechanism below, preventing water accumulation from affecting heat exchange efficiency. During installation, either a V-shape or an inverted V-shape can be achieved by adjusting the support frame angle to adapt to the installation space limitations of different vehicle models. By using the symmetrical inclined arrangement of the two sets of evaporators 4, the unit height is effectively reduced while maintaining the same heat exchange capacity. Simultaneously, the spatial redundancy created by the tilt angle optimizes the internal airflow organization. This solves the problem of traditional air conditioning units encroaching on passenger space due to excessive height; the inclined evaporator structure allows the unit to fit into the narrow space on the vehicle roof. The symmetrical layout of the two sets of evaporators 4 also improves heat exchange efficiency, and the guiding effect of the inclined surface helps accelerate condensate drainage, preventing a decrease in heat exchange performance due to water accumulation.

[0031] Furthermore, a water collection pipe 8 is provided at the bottom of the housing 1, which is used to drain the water accumulated on the housing 1.

[0032] Optionally, the included angle between the two sets of evaporators 4 is between 60° and 120°.

[0033] The included angle range refers to the spatial angle formed when the two sets of evaporators 4 are arranged at an angle within the evaporation chamber 2. This angle can be adjusted by changing the tilt angle of the mounting brackets for the evaporators 4. This angle range is limited to balance airflow distribution efficiency and structural compactness, avoiding situations where an excessively small angle leads to increased airflow resistance or an excessively large angle leads to reduced space utilization.

[0034] Specifically, when the two sets of evaporators 4 are arranged at an angle of 60° to 120°, the internal space of the evaporation chamber 2 is fully utilized, and the windward area of ​​the evaporator 4 is optimized. As the airflow passes over the surface of the evaporator 4, it can evenly cover the fin area, reducing local airflow stagnation or short-circuiting. Simultaneously, this angle range allows the condensate drain pipe 11 to be arranged along the tilt direction of the evaporator 4, ensuring smooth drainage of condensate. By limiting the angle range, the overall height of the unit is reduced while ensuring heat exchange efficiency, while avoiding drainage problems caused by excessively large or small angles.

[0035] Optionally, the condensate drain pipe 11 is arranged at an angle and is corresponding to the evaporator 4; the end of the condensate drain pipe 11 away from the evaporator 4 is connected to the outside of the vehicle through a water removal pipe.

[0036] The inclined arrangement of the condensate drain pipe 11 means that the drain pipe forms a height difference along its length. This can be achieved by installing the drain pipe at an angle to the horizontal plane, allowing the condensate to flow in the inclined direction under the influence of gravity. Connecting the drain pipe to the outside of the vehicle means that the end of the drain pipe extends to the side wall or bottom of the vehicle body through a pipeline. This can be achieved by connecting a flexible hose to the vehicle body's drain hole, ensuring that the condensate is discharged outside the vehicle.

[0037] Specifically, after the two sets of evaporators 4 are arranged at an inverted V-shape, the space formed at their bottom is designed as the installation area for the inclined condensate drain pipe 11. Condensate drips from the surface of the evaporator 4 and flows along the inclined direction of the drain pipe to the end drain port, where it is directly discharged to the outside of the vehicle body through the drain pipe. This arrangement eliminates the need for secondary collection of condensate inside the unit, avoiding water accumulation caused by horizontal piping.

[0038] Optionally, the fin spacing of the evaporator 4 is different, with the fin spacing on the windward side (towards the return air damper 6) being greater than that on the leeward side (away from the return air damper 6).

[0039] The fin spacing refers to the vertical distance between adjacent fins, which can be achieved by adjusting the fin installation angle or by using a non-uniform stamping process. The difference in fin spacing can optimize airflow distribution and reduce wind resistance.

[0040] Specifically, the evaporator 4 employs a larger fin spacing on the windward side, reducing airflow resistance in the initial contact area and preventing excessively high local wind speeds that could cause condensate splashing. The leeward side uses a smaller fin spacing, increasing the heat exchange area through denser fins in the airflow velocity attenuation region, thus improving overall heat exchange efficiency. As airflow passes through the evaporator 4, the resistance distribution tends to be more even, while condensate can be discharged orderly along the gradient direction formed by the fin spacing variation. This embodiment, through differentiated fin spacing, reduces resistance while improving heat exchange efficiency, avoiding the problems of condensate retention or airflow turbulence caused by uneven resistance in traditional designs. It solves the problem of low air delivery efficiency caused by excessive airflow resistance in air conditioning units. Furthermore, by optimizing the heat exchange area distribution, the performance of the evaporator 4 is improved, allowing for a reduction in the overall height of the air conditioning unit, freeing up space for interior ceiling and lighting fixture layout.

[0041] Optionally, the air supply damper 7 is located on the open side of the evaporator 4, which is arranged in a V-shape or an inverted V-shape. This structure allows the airflow to naturally follow the V-shape, resulting in smoother flow and higher efficiency.

[0042] Optionally, the air supply mechanism also includes a main air supply duct located at the top of the passenger compartment. The main air supply duct is arranged in the central area of ​​the passenger compartment along the length of the vehicle, and multiple air outlets are provided at the bottom of the main air supply duct. The main air supply duct is connected to the air outlets 9 through flexible air ducts.

[0043] The air outlet 9 refers to the opening structure located at the bottom of the housing 1 for outputting airflow. It can be implemented using a rectangular or circular cross-section channel, and its position must maintain a distance from the vehicle's interior roof panel to avoid spatial interference. The main air duct is used to evenly distribute the airflow from the air outlet 9 into the vehicle's passenger compartment.

[0044] Another embodiment of the present invention provides a straddle-type monorail vehicle including an air conditioning unit for the straddle-type monorail vehicle.

[0045] Alternatively, the air conditioning unit may be installed off-center from the center of the passenger compartment.

[0046] Among them, the installation position is off-center from the center of the vehicle passenger compartment, which means that the air conditioning unit is placed in an asymmetrical area at the end of the vehicle body or near the middle of the vehicle body. This can be achieved by adjusting the fixing point of the mounting bracket or optimizing the vehicle body structure layout, thereby avoiding the negative impact of the centralized arrangement of the air conditioning unit on the axle load distribution of the vehicle.

[0047] Specifically, by installing the air conditioning unit at a position off-center from the passenger compartment, the distribution of bogie axle load is adjusted. When the air conditioning unit is positioned at the end of the car body, its weight partially offsets the concentrated load on the bogies at those ends. When the air conditioning unit is positioned in an asymmetrical area in the middle of the car body, its weight distribution balances the axle load difference between the two bogies. During installation, the connection structure between the air conditioning unit and the top of the car body is designed to accommodate mounting interfaces with different offset distances. Simultaneously, the interior space of the car body is redesigned, freeing up the central area of ​​the passenger compartment for the installation of lighting fixtures or other equipment.

[0048] Compared to existing technologies, which centrally position the air conditioning unit, resulting in uneven bogie axle load distribution and inefficient use of space in the center of the passenger compartment, this embodiment optimizes vehicle axle load balance and frees up equipment space in the central passenger compartment by offsetting the installation position. This solves the bogie axle load imbalance problem caused by centrally positioned air conditioning units, while also improving passenger compartment space utilization and avoiding spatial conflicts between air ducts and lighting equipment on either side of the passenger compartment.

[0049] The beneficial effects of the vehicle in this embodiment compared to the prior art are the same as those of the air conditioning unit for straddle-type monorail vehicles described above, and will not be repeated here.

[0050] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.

Claims

1. An air conditioning unit for a straddle-type monorail vehicle, comprising a housing (1) and an evaporator (4), a condenser (5), an air supply mechanism, and a drainage mechanism disposed within the housing (1), characterized in that, The housing (1) is divided into an evaporation chamber (2) and a condensation chamber (3) by a partition. The evaporation chamber (2) is arranged near the end of the vehicle body in the length direction of the vehicle, and the condensation chamber (3) is arranged near the middle of the vehicle body in the length direction of the vehicle. The evaporator (4) and the condenser (5) are respectively arranged in the evaporation chamber (2) and the condensation chamber (3). The air supply mechanism includes an air supply damper (7) and a return air damper (6), both of which are arranged in the evaporation chamber (2) of the housing (1). The drainage mechanism includes a condensation drain pipe (11), which is arranged below the evaporator (4).

2. The air conditioning unit for straddle-type monorail vehicles according to claim 1, characterized in that, The evaporator (4) comprises two sets, which are arranged in a V-shape or inverted V-shape within the evaporation chamber (2), wherein the V-shaped surface is parallel to the horizontal plane.

3. The air conditioning unit for straddle-type monorail vehicles according to claim 2, characterized in that, The included angle between the two sets of evaporators (4) is between 60° and 120°.

4. The air conditioning unit for straddle-type monorail vehicles according to claim 2, characterized in that, The condensate drain pipe (11) is arranged at an angle and is set in correspondence with the evaporator (4); the end of the condensate drain pipe (11) away from the evaporator (4) is connected to the outside of the vehicle through a water removal pipe.

5. The air conditioning unit for straddle-type monorail vehicles according to claim 2, characterized in that, The fin spacing of the evaporator (4) facing the return air damper (6) is greater than the fin spacing away from the return air damper (6).

6. The air conditioning unit for straddle-type monorail vehicles according to claim 2, characterized in that, The air supply damper (7) is located on the opening side of the evaporator (4) which is arranged in a V-shape or an inverted V-shape.

7. The air conditioning unit for straddle-type monorail vehicles according to claim 6, characterized in that, The lower part of the housing (1) has an air supply port (9) and a return air port (10); the air supply damper (7) is disposed in the air supply port (9); the return air damper (6) is disposed in the return air port (10).

8. The air conditioning unit for straddle-type monorail vehicles according to claim 7, characterized in that, The air supply mechanism also includes a main air supply duct located at the top of the passenger compartment. The main air supply duct is arranged in the central area of ​​the passenger compartment along the length of the vehicle. Multiple air outlets are opened at the bottom of the main air supply duct. The main air supply duct is connected to the air outlet (9) through a flexible air duct.

9. A straddle-type monorail vehicle, characterized in that, Includes an air conditioning unit for straddle-type monorail vehicles as described in any one of claims 1 to 8.

10. The straddle-type monorail vehicle according to claim 9, characterized in that, The air conditioning unit is installed off-center from the center of the passenger compartment.

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