Air supply optimization device and rail vehicle air supply system

Abstract

This application provides an air supply optimization device and a rail vehicle air supply system. The air supply optimization device includes a diversion component, which has a first diversion section and a second diversion section. The first and second diversion sections are connected at a preset angle at the air outlet, and both sections are convex towards the air outlet. A first diversion hole is formed on the first diversion section, penetrating the opposite side of the first diversion section; a second diversion hole is formed on the second diversion section, penetrating the opposite side of the second diversion section. Air is supplied at both ends in the length or width direction within the entire vehicle (car section), and air is also supplied directly below the air supply optimization device within the entire vehicle. This ensures air supply at different locations within the vehicle, resulting in more uniform airflow and higher temperature uniformity within the vehicle. This solves the technical problems of poor airflow uniformity and low temperature uniformity within the vehicle that occur in existing air supply systems.

Description

Technical Field

[0001] This application relates to the field of rail vehicle equipment technology, and in particular to air supply optimization devices and rail vehicle air supply systems. Background Technology

[0002] In the rail transit industry, air conditioning systems are required to ensure passenger temperature comfort. These systems mainly consist of air conditioning units and air supply systems. Typically, two air conditioning units are installed on the exterior roof of the train. These units are connected to an air supply optimization device located horizontally along the length of the train and located above the interior roof panel via mounting openings on the roof. This allows the air processed by the air conditioning units to be delivered into the train. Therefore, the uniformity of the air supply system directly affects the uniformity of the temperature inside the train.

[0003] The existing air supply method involves sending airflow downwards from the air outlet of the air conditioning unit into the first-stage air duct. Due to the large air volume, the downward air velocity is about 15m / s-20m / s. It is necessary to install a "U"-shaped diversion structure at the inlet to transition the airflow from vertical downwards to a horizontal direction along the length of the vehicle. However, the disadvantage of this design structure is that there is no air supply or only a small amount of air supply to the area below and near the unit, which will create a large area without airflow, resulting in poor air supply uniformity and low temperature uniformity inside the vehicle.

[0004] Therefore, there is an urgent need for air supply optimization devices and rail vehicle air supply systems to address the shortcomings of existing technologies to some extent. Utility Model Content

[0005] The purpose of this application is to provide an air supply optimization device and a rail vehicle air supply system to solve the technical problems of poor air supply uniformity and low temperature uniformity inside the vehicle when the existing air supply system is in use.

[0006] This application provides an air supply optimization device, which is installed at the air outlet of an air conditioning unit; the air supply optimization device includes a flow splitting component; The diversion component has a first diversion part and a second diversion part. The first diversion part and the second diversion part are connected at a preset angle at the air outlet, and the first diversion part and the second diversion part are convex in the direction of the air outlet towards the air outlet. The first diversion section is provided with a first diversion hole that passes through the opposite side of the first diversion section; The second diversion section has a second diversion hole that passes through the opposite side of the second diversion section.

[0007] In the above technical solution, the first diversion part is a first diversion plate with a first preset curvature and concave towards the air outlet, and the second diversion part is a second diversion plate with a second preset curvature and concave towards the air outlet. The first preset radian is greater than the second preset radian, or the first preset radian is equal to the second preset radian, or the first preset radian is less than the second preset radian.

[0008] In the above technical solution, the first diversion hole is further provided on the first diversion plate and penetrates the opposite sidewall of the first diversion plate along the air blowing direction of the air outlet. The first diversion hole has the first preset curvature.

[0009] In the above technical solution, the second diversion hole is further provided in the second diversion plate and penetrates the opposite sidewall of the second diversion plate along the air blowing direction of the air outlet. The second diversion hole has the second preset curvature.

[0010] In the above technical solution, the first diversion hole is further provided on the first diversion plate and penetrates the opposite sidewall of the first diversion plate along the air blowing direction of the air outlet. The first diversion hole extends along the air blowing direction of the air outlet.

[0011] In the above technical solution, the second diversion hole is further provided in the second diversion plate and penetrates the opposite sidewall of the second diversion plate along the air blowing direction of the air outlet. The second diversion hole extends along the air blowing direction of the air outlet.

[0012] In the above technical solution, the first diversion hole has a first preset number, a first preset shape, and a first preset cross-sectional area; the second diversion hole has a second preset number, a second preset shape, and a second preset cross-sectional area.

[0013] This application also provides a rail vehicle air supply system, which is installed above the top plate, and the rail vehicle air supply system includes the aforementioned air supply optimization device; The top plate near the air conditioning unit has grilles corresponding to the air outlets or a first air outlet corresponding to the air outlets, spaced apart along the length or width of the rail vehicle. The top plate has second air inlets at both ends along the length or width of the rail vehicle. The air supplied by the air conditioning unit will pass through the air supply optimization device. After passing through the air supply optimization device, part of the air will pass through the grille or the air outlet to the area below the top plate corresponding to the first and second diversion sections, and the other part of the air will pass through the second air outlet to both ends of the rail vehicle along its length or width.

[0014] In the above technical solution, the air supply optimization device is further connected to the side of the top plate away from the air conditioning unit by a sealing strip.

[0015] This application provides an air supply optimization device, which is installed at the air outlet of an air conditioning unit; the air supply optimization device includes a flow splitting component; The diversion component has a first diversion part and a second diversion part. The first diversion part and the second diversion part are connected at a preset angle at the air outlet, and the first diversion part and the second diversion part are convex in the direction of the air outlet towards the air outlet. The first diversion section is provided with a first diversion hole that passes through the opposite side of the first diversion section; The second diversion section has a second diversion hole that passes through the opposite side of the second diversion section.

[0016] In summary, the air supply optimization device provided in this application not only delivers air generated by the air conditioning unit horizontally (for example, in a rail vehicle with a roof extending along the length of the rail vehicle, the air supply structure delivers air generated by the air conditioning unit to both ends of the roof along the length of the rail vehicle), but also guides the air generated by the air conditioning unit downwards directly opposite the air supply duct structure, effectively achieving vertical air supply. This means that air is supplied at both ends of the length or width of the entire vehicle (car section), and also directly below the corresponding air supply optimization device. This ensures air supply at different locations throughout the vehicle, resulting in more uniform airflow and higher temperature uniformity within the vehicle. Therefore, it solves the technical problems of poor airflow uniformity and low temperature uniformity within the vehicle that exist in existing air supply systems.

[0017] This application also provides a rail vehicle air supply system, which is installed above the top plate, and the rail vehicle air supply system includes the aforementioned air supply optimization device; The top plate near the air conditioning unit has grilles corresponding to the air outlets or a first air outlet corresponding to the air outlets, spaced apart along the length or width of the rail vehicle. The top plate has second air inlets at both ends along the length or width of the rail vehicle. The air supplied by the air conditioning unit will pass through the air supply optimization device. After passing through the air supply optimization device, part of the air will pass through the grille or the air outlet to the area below the top plate corresponding to the first and second diversion sections, and the other part of the air will pass through the second air outlet to both ends of the rail vehicle along its length or width.

[0018] In summary, the air discharged from the air conditioning unit flows through the air outlet to the air supply optimization device. A portion of the air, passing through the left-side air supply optimization device, is discharged from one end of the roof panel along the length or width of the rail vehicle. The other portion of the air, passing through the right-side air supply optimization device, is discharged from the other end of the roof panel along the length or width of the rail vehicle. A portion of the air discharged through the left-side air supply optimization device flows through the first diversion hole, the second diversion hole, the grille, or the ventilation hole, perpendicular to the length or width of the rail vehicle, and exits from the roof panel directly below the left-side air outlet. Similarly, a portion of the air discharged through the right-side air supply optimization device flows through the first diversion hole, the second diversion hole, the grille, or the ventilation hole, perpendicular to the length or width of the rail vehicle, and exits from the roof panel directly below the right-side air outlet.

[0019] In addition, the air after passing through the air supply optimization device will also be guided to both ends of the length or width direction of the rail vehicle through the second air supply port. In summary, air is supplied to both ends of the length or width direction of the whole vehicle (car section) through the second air supply, and there is also air supply directly below the corresponding air supply optimization device in the whole vehicle. In this way, air is supplied to different positions in the whole vehicle, which makes the air in the whole vehicle more uniform. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 A structural schematic diagram of the rail vehicle air supply system provided in this application from a first-view perspective; Figure 2 for Figure 1 A schematic diagram of the structure of the hidden top plate; Figure 3 The structural schematic diagram of the rail vehicle air supply system provided in this application from a second-view perspective; Figure 4 This application provides a structural schematic diagram of the rail vehicle air supply system from a third-person perspective. Figure 5 for Figure 4 A schematic diagram of the hidden top plate.

[0022] Attached image label: 1 - Air outlet; 2-Flow divider component; 201-First flow divider section; 203-Second flow divider section; 204-First flow divider hole; 205-Second flow divider hole; 206-First flow divider plate; 207-Second flow divider plate; 3-Top plate; 302-Ventilation hole. Detailed Implementation

[0023] The following detailed embodiments are provided to aid the reader in gaining a comprehensive understanding of the methods, apparatus, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will be apparent upon understanding the disclosure of this application. For example, the order of operations described herein is merely illustrative and is not limited to the order presented herein; rather, changes that will be apparent upon understanding the disclosure of this application are possible, except for operations that must occur in a specific order. Furthermore, descriptions of features known in the art may be omitted for clarity and brevity. The features described herein may be implemented in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein are provided only to illustrate some of the many possible ways of implementing the methods, apparatus, and / or systems described herein that will be apparent upon understanding the disclosure of this application. Throughout this specification, when an element (such as a layer, region, or substrate) is described as being "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, it may be directly "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, or there may be one or more other elements in between. Conversely, when an element is described as being "directly on" another element, "directly connected to" another element, "directly bonded to" another element, "directly on" another element, or "directly covering" another element, there may be no other elements in between. As used herein, the term "and / or" includes any one of the relevant items listed and any combination of any two or more of them. Although terms such as "first," "second," and "third" may be used herein to describe individual components, assemblies, regions, layers, or portions, these components, assemblies, regions, layers, or portions are not limited by these terms. More precisely, these terms are used only to distinguish one component, assembly, region, layer, or part from another. Therefore, without departing from the teachings of the examples described herein, the first component, assembly, region, layer, or part referred to as such in the examples may also be referred to as the second component, assembly, region, layer, or part. For ease of description, spatial relational terms such as “above,” “upper,” “below,” and “lower” may be used herein to describe the relationship between one element and another, as shown in the accompanying drawings. Such spatial relational terms are intended to include not only the orientation depicted in the drawings but also the different orientations of the device in use or operation. For example, if the device in the drawings is flipped, an element described as being “above” or “upper” relative to another element will subsequently be “below” or “lower” relative to that other element.Therefore, the term "above" includes both "above" and "below" depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., oscillating 90 degrees or in other orientations), and the spatial relational terms used herein will be interpreted accordingly. The terminology used herein is for describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "comprising," "including," and "having" enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof. Variations in the shapes shown in the figures may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the figures but include changes in shape that occur during manufacturing. The features of the examples described herein may be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have a wide variety of constructions, other constructions are possible as will be apparent upon understanding the disclosure of this application.

[0024] Example 1 Existing air supply structures can only guide the air generated by the air conditioning unit horizontally (for example, in a rail vehicle with a roof plate 3 extending along the length of the rail vehicle, the air supply structure guides the air generated by the air conditioning unit to both ends of the roof plate 3 along the length of the rail vehicle). However, this results in no airflow directly below the air conditioning unit on the roof plate 3, leading to poor airflow uniformity and low temperature uniformity inside the vehicle. This application addresses this technical problem by providing an air supply optimization device, which is described below in conjunction with... Figures 1-5 The structure is described in detail.

[0025] The air supply optimization device is installed at the air outlet 1 of the air conditioning unit to guide the air supplied by the air conditioning unit. Specifically, in conjunction with Figure 2 and Figure 5 As shown, the air supply optimization device includes a flow-diverting component 2, which has a first flow-diverting section 201 and a second flow-diverting section 203. The first flow-diverting section 201 and the second flow-diverting section are connected at a preset angle at the air outlet 1, and both sections bulge towards the air outlet 1. Therefore, when air passes through the air outlet 1 and reaches the flow-diverting component 2, the air is diverted by the flow-diverting component 2 to... Figure 2 As shown in the example, after the wind is split by the diversion component 2, part of the wind flows to the left and the other part flows to the right.

[0026] In addition, a first diversion hole 204 is provided on the first diversion section 201, which passes through the opposite side of the first diversion section 201, still in the form of Figure 2 For example, the opposite side of the first diversion section 201 refers to the upper and lower surfaces of the first diversion section 201. That is, the first diversion hole 204 passes through the upper and lower surfaces of the first diversion section 201. So, for the wind flowing to the left, a part of the wind will be guided from the upper surface of the first diversion section 201 to the lower surface, which is equivalent to directly guiding a part of the wind from the air outlet 1 of the air conditioning unit in the vertical direction to directly below the air outlet 1.

[0027] Similarly, the second diversion section 203 is provided with a second diversion hole 205 that penetrates the opposite side of the second diversion section 203, still in the form of Figure 2 For example, the opposite side of the second diversion section 203 refers to the upper and lower surfaces of the second diversion section 203, that is, the second diversion hole 205 penetrates the upper and lower surfaces of the second diversion section 203. So, for the wind flowing to the left, a part of the wind will be guided from the upper surface of the second diversion section 203 to the lower surface, which is equivalent to directly guiding a part of the wind from the air outlet 1 of the air conditioning unit in the vertical direction to directly below the air outlet 1.

[0028] In summary, the air supply optimization device provided in this application can not only guide the air generated by the air conditioning unit in the horizontal direction (for example, in a rail vehicle with a roof plate 3 extending along the length of the rail vehicle, the air supply structure guides the air generated by the air conditioning unit to both ends of the roof plate 3 along the length of the rail vehicle), but also guide the air generated by the air conditioning unit to the area directly below the air outlet 1 on the roof plate 3. This is equivalent to achieving vertical airflow guidance, thereby achieving good uniformity of air supply and high uniformity of temperature inside the vehicle. Therefore, it solves the technical problems of poor uniformity of air supply and low uniformity of temperature inside the vehicle that occur in existing air supply systems during use.

[0029] In this embodiment, combined with Figure 2 and Figure 5 As shown, the first diversion section 201 is a first diversion plate 206 with a first preset curvature and concave towards the air outlet 1. In other words, the first diversion section 201 is the first diversion plate 206. The first diversion plate 206 has a first preset curvature and is concave towards the air outlet 1; that is, the upper surface of the first diversion plate 206 facing the air outlet 1 is curved. Therefore, when air is diverted by the first diversion plate 206, it will be diverted along the curved first diversion plate 206. Furthermore, the first diversion plate 206 with the first preset curvature conforms to fluid dynamics design, effectively increasing the airflow guidance.

[0030] Similarly, the second diverter 203 has a second diverter plate 207 with a second preset curvature that is concave towards the air outlet 1. In other words, the second diverter 203 is the second diverter plate 207. The second diverter plate 207 has a second preset curvature and is concave towards the air outlet 1; that is, the upper surface of the second diverter plate 207 facing the air outlet 1 is curved. Therefore, when air is diverted by the second diverter plate 207, it will be diverted along the curved second diverter plate 207. Furthermore, the second diverter plate 207 with the second preset curvature conforms to fluid dynamics design, enhancing the airflow guidance effect.

[0031] In addition, the first preset radian is greater than the second preset radian, or the first preset radian is equal to the second preset radian, or the first preset radian is less than the second preset radian.

[0032] Specifically, regarding the setting of the above three curvature relationships, let's take a rail vehicle with a top plate 3 as an example. Assume there is only one air conditioning unit, and the air outlet 1 is formed on the top plate 3. There is only one air outlet 1, and it is located in the middle of the top plate 3. The air supply optimization device is set in the middle of the top plate 3, corresponding to the position of the air outlet 1. In order to ensure that the air ultimately obtained by both ends of the top plate 3 along its length is the same, the first preset curvature and the second preset curvature are set to be equal. This ensures that the air diverted by the first diversion part 201 (diverting to the left, one end of the top plate 3 along its length) and the second airflow part (diverting to the right, the other end of the top plate 3 along its length) is equal. At this time, it is worth noting that the connection position of the first diversion plate 206 and the second diversion plate 207 is exactly located at the center of the air outlet 1.

[0033] Assume there are two air conditioning units, each with two air outlets 1, namely the first air outlet 1 and the second air outlet 1. The two air outlets 1 are spaced apart on the top plate 3. There are two air supply optimization devices, namely the first air supply optimization device and the second air supply optimization device. The first air supply optimization device corresponds to the first air outlet 1, and the second air supply optimization device corresponds to the second air outlet 1. In order to ensure that the air finally obtained by both ends of the top plate 3 along its length is the same, the following two settings can be selected: (1) The first air outlet device is located at Figure 2 On the left side, the second air outlet is located Figure 2 On the right side of the first air outlet device, the first preset curvature of the first airflow plate is greater than the second preset curvature of the second airflow plate, and the first preset curvature of the first diverter plate 206 in the second air outlet device is less than the second preset curvature of the second diverter plate 207. (2) The first air outlet device is located in Figure 2 On the left side, the second air outlet is located Figure 2On the right side of the first air outlet device, the second preset curvature of the second airflow plate is greater than the first preset curvature of the first airflow plate, and the first preset curvature of the first diverter plate 206 in the first air outlet device is greater than the second preset curvature of the second diverter plate 207.

[0034] In this embodiment, combined with Figure 2 or Figure 5 As shown, the first diversion hole 204 is opened on the first diversion plate 206 and penetrates the opposite side wall of the first diversion plate 206 along the air blowing direction of the air outlet 1. That is, the first diversion hole 204 penetrates the upper and lower surfaces of the first diversion plate 206. With this arrangement, when air passes over the upper surface of the first diversion plate 206, a portion of the air can be guided from the upper surface of the first diversion plate 206 through the first diversion hole 204 to the lower surface of the first diversion plate 206, so that there is also airflow directly below the first diversion plate 206, that is, directly below the air outlet 1.

[0035] Still combined Figure 2 or Figure 5 As shown, the second diversion hole 205 is opened on the second diversion plate 207 and penetrates the opposite side wall of the second diversion plate 207 along the air blowing direction of the air outlet 1. That is, the second diversion hole 205 penetrates the upper and lower surfaces of the second diversion plate 207. With this arrangement, when air passes over the upper surface of the second diversion plate 207, a portion of the air can be guided from the upper surface of the second diversion plate 207 through the second diversion hole 205 to the lower surface of the second diversion plate 207, so that there is also airflow directly below the second diversion plate 207, that is, directly below the air outlet 1.

[0036] Furthermore, the manufacturing process of the air supply optimization device (first diverter plate 206 and second diverter plate 207) is as follows: A plate-shaped structure (made of plastic or metal) is taken; holes extending along the thickness direction of the plate are then opened on its surface, preferably arranged in a matrix; finally, the plate is bent downwards at a predetermined position (preferably the middle position along the length of the plate), so that the left side of the plate presents a first diverter plate 206 with a first predetermined curvature, and the right side presents a second diverter plate 207 with a second predetermined curvature. Through the above operations, the first diverter hole 204 has a first predetermined curvature, and the second diverter hole 205 has the second predetermined curvature.

[0037] It should also be noted that: the first diversion hole 204 has a first preset number, a first preset shape, and a first preset cross-sectional area; the second diversion hole 205 has a second preset number, a second preset shape, and a second preset cross-sectional area. In the actual manufacturing process, the porosity of the first diversion hole 204 and the air delivery mode of the air outlet 1 are controlled by controlling the first preset number, the first preset shape, and the first preset cross-sectional area of ​​the first diversion hole 204; the porosity of the second diversion hole 205 and the air delivery mode of the air outlet 1 are controlled by controlling the second preset number, the second preset shape, and the second preset cross-sectional area of ​​the second diversion hole 205, thereby controlling the airflow from the upper surface to the lower surface of the air delivery optimization device.

[0038] Example 2 In this embodiment, combined with Figure 2 or Figure 5 As shown, the first diversion hole 204 is opened on the first diversion plate 206 and penetrates the opposite side wall of the first diversion plate 206 along the air blowing direction of the air outlet 1. That is, the first diversion hole 204 penetrates the upper and lower surfaces of the first diversion plate 206. With this arrangement, when air passes over the upper surface of the first diversion plate 206, a portion of the air can be guided from the upper surface of the first diversion plate 206 through the first diversion hole 204 to the lower surface of the first diversion plate 206, so that there is also airflow directly below the first diversion plate 206, that is, directly below the air outlet 1.

[0039] Still combined Figure 2 or Figure 5 As shown, the second diversion hole 205 is opened on the second diversion plate 207 and penetrates the opposite side wall of the second diversion plate 207 along the air blowing direction of the air outlet 1. That is, the second diversion hole 205 penetrates the upper and lower surfaces of the second diversion plate 207. With this arrangement, when air passes over the upper surface of the second diversion plate 207, a portion of the air can be guided from the upper surface of the second diversion plate 207 through the second diversion hole 205 to the lower surface of the second diversion plate 207, so that there is also airflow directly below the second diversion plate 207, that is, directly below the air outlet 1.

[0040] Furthermore, the manufacturing process of the air supply optimization device (first diversion plate 206 and second diversion plate 207) is as follows: Take a plate-shaped structure (made of plastic or metal); then, bend the plate downwards at a preset position (preferably the middle position in the length direction of the plate) so that the left side of the plate presents a first diversion plate 206 with a first preset curvature and the right side presents a second diversion plate 207 with a second preset curvature; finally, make holes (first diversion hole 204 and second diversion hole 205) on the surfaces of the first diversion plate 206 and the second diversion plate 207 respectively, with the holes extending in the vertical direction.

[0041] It should also be noted that: the first diversion hole 204 has a first preset number, a first preset shape, and a first preset cross-sectional area; the second diversion hole 205 has a second preset number, a second preset shape, and a second preset cross-sectional area. In the actual manufacturing process, the porosity of the first diversion hole 204 and the air delivery mode of the air outlet 1 are controlled by controlling the first preset number, the first preset shape, and the first preset cross-sectional area of ​​the first diversion hole 204; the porosity of the second diversion hole 205 and the air delivery mode of the air outlet 1 are controlled by controlling the second preset number, the second preset shape, and the second preset cross-sectional area of ​​the second diversion hole 205, thereby controlling the airflow from the upper surface to the lower surface of the air delivery optimization device.

[0042] Example 3 This application provides a rail vehicle air supply system, which is installed above the top plate 3. The rail vehicle air supply system includes the aforementioned air supply optimization device; combined with... Figure 1 and Figure 4 As shown, the top plate 3 is located on the side near the air conditioning unit, that is, the upper surface of the top plate 3 is provided with grilles corresponding to the air outlets along the length or width direction of the rail vehicle, or has a first air outlet corresponding to the air outlet.

[0043] In addition, the top plate 3 has a long strip structure. Since there are two air outlets 1, there are also two air supply optimization devices, each corresponding to one of the two first air outlets.

[0044] In addition, a second air supply vent is provided at both ends of the top plate along the length or width of the rail vehicle.

[0045] The entire air supply process is as follows: the air exported by the air conditioning unit enters through the air outlet 1 and is guided to the air supply optimization device; part of the air is exported from the top plate 3 at one end of the length or width direction of the rail vehicle through the left air supply optimization device, and the other part of the air is exported from the top plate 3 at the other end of the length direction of the rail vehicle through the right air supply optimization device, along the length or width direction of the rail vehicle. A portion of the airflow from the left-side air supply optimization device flows out of the top plate 3 along the length or width direction of the rail vehicle via the first diversion hole 204, the second diversion hole 205, and the grille or ventilation hole 302. That is, it flows out of the top plate 3 directly below the left-side air outlet 1 through the first diversion hole 204, the second diversion hole 205, and the grille or ventilation hole 302. Similarly, a portion of the airflow from the right-side air supply optimization device flows out of the top plate 3 along the length or width direction of the rail vehicle via the first diversion hole 204, the second diversion hole 205, and the grille or ventilation hole 302. That is, it flows out of the top plate 3 directly below the right-side air outlet 1 through the first diversion hole 204, the second diversion hole 205, and the grille or ventilation hole 302.

[0046] In addition, the air after passing through the air supply optimization device will also be guided to both ends of the length or width direction of the rail vehicle through the second air supply port. In summary, air is supplied to both ends of the length or width direction of the whole vehicle (car section) through the second air supply, and there is also air supply directly below the corresponding air supply optimization device in the whole vehicle. In this way, air is supplied to different positions in the whole vehicle, which makes the air in the whole vehicle more uniform.

[0047] It is worth noting that by adjusting the porosity or resistance coefficient of the first diversion hole 204, the second diversion hole 205, and the grille or ventilation hole 302, the flow ratio of the diversion can be controlled to achieve a uniform air supply effect, resulting in a uniform temperature inside the vehicle.

[0048] In addition, the air supply optimization device and the side of the top plate 3 away from the air conditioning unit are sealed with a sealing strip to prevent air from leaking out from the gap at the connection between the air supply optimization device and the top plate 3, ensuring that the air passing through the air supply optimization device can only be guided from the grille or ventilation hole 302.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An air supply optimization device, disposed at the air outlet of an air conditioning unit; characterized in that, The air supply optimization device includes a flow splitting component; The diversion component has a first diversion part and a second diversion part. The first diversion part and the second diversion part are connected at a preset angle at the air outlet, and the first diversion part and the second diversion part are convex in the direction of the air outlet towards the air outlet. The first diversion section is provided with a first diversion hole that passes through the opposite side of the first diversion section; The second diversion section has a second diversion hole that passes through the opposite side of the second diversion section.

2. The air supply optimization device according to claim 1, characterized in that, The first diversion part is a first diversion plate with a first preset curvature and concave towards the air outlet, and the second diversion part is a second diversion plate with a second preset curvature and concave towards the air outlet. The first preset radian is greater than the second preset radian, or the first preset radian is equal to the second preset radian, or the first preset radian is less than the second preset radian.

3. The air supply optimization device according to claim 2, characterized in that, The first diversion hole is formed in the first diversion plate and penetrates the opposite side wall of the first diversion plate along the air blowing direction of the air outlet; The first diversion hole has the first preset curvature.

4. The air supply optimization device according to claim 2, characterized in that, The second diversion hole is formed in the second diversion plate and penetrates the opposite sidewall of the second diversion plate along the air blowing direction of the air outlet; The second diversion hole has the second preset curvature.

5. The air supply optimization device according to claim 2, characterized in that, The first diversion hole is formed in the first diversion plate and penetrates the opposite side wall of the first diversion plate along the air blowing direction of the air outlet; The first diversion hole extends along the air blowing direction of the air outlet.

6. The air supply optimization device according to claim 2, characterized in that, The second diversion hole is formed in the second diversion plate and penetrates the opposite sidewall of the second diversion plate along the air blowing direction of the air outlet; The second diversion hole extends along the air blowing direction of the air outlet.

7. The air supply optimization device according to any one of claims 1-6, characterized in that, The first diversion hole has a first preset number, a first preset shape, and a first preset cross-sectional area; the second diversion hole has a second preset number, a second preset shape, and a second preset cross-sectional area.

8. A ventilation system for rail vehicles, installed above the top plate, characterized in that, The air supply system for rail vehicles includes the air supply optimization device as described in any one of claims 1-7; The top plate near the air conditioning unit has grilles corresponding to the air outlets or a first air outlet corresponding to the air outlets, spaced apart along the length or width of the rail vehicle. The top plate has second air inlets at both ends along the length or width of the rail vehicle. The air supplied by the air conditioning unit will pass through the air supply optimization device. After passing through the air supply optimization device, part of the air will pass through the grille or the air outlet to the area below the top plate corresponding to the first and second diversion sections, and the other part of the air will pass through the second air outlet to both ends of the rail vehicle along its length or width.

9. The air supply system for rail vehicles according to claim 8, characterized in that, The air supply optimization device is sealed to the side of the top plate away from the air conditioning unit using a sealing strip.

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