Testing device for air conditioning system of railway vehicle

Abstract

The invention provides a test device for an air conditioning system of a rail vehicle, and relates to the technical field of rail transit, and the test device comprises a first baffle plate and a second baffle plate which are arranged at an interval; the multiple air duct units are detachably installed on the test vehicle body in the length direction of the test vehicle body and located between the first baffle and the second baffle so that an air duct formed by the multiple air duct units can be closed through the first baffle and the second baffle to form a simulation air duct, and the simulation air duct is suitable for simulating an air duct of an air conditioning system of the test vehicle body; wherein an air inlet is formed in the first baffle plate and is communicated with an air supply outlet of an air conditioning unit of the air conditioning system, so that air from the air conditioning unit is supplied to a compartment of the test vehicle body after being adjusted by the simulation air duct; wherein each air duct unit is configured to be adjustable along the width direction of the test vehicle body so as to be matched with test vehicle bodies of different vehicle types.

Description

Technical Field

[0001] At least one embodiment of the present disclosure relates to the technical field of rail vehicles, and more specifically, to a test device for an air conditioning system of a rail vehicle. Background Art

[0002] In order to meet the passengers' requirements for comfort, the air conditioning system of rail vehicles needs to be carefully designed to ensure that the cabin can maintain a consistent and stable temperature, appropriate humidity, suitable air flow speed, and excellent air cleanliness. The precise control of the air conditioning system not only enhances the passenger experience, but also plays an indispensable role in maintaining passenger health, improving transportation efficiency, and extending the service life of vehicles.

[0003] During the supporting test and testing phase of the rail vehicle air conditioning system, different models have different requirements for the cross-sectional dimensions of the main air supply cavity, return air cavity and static pressure cavity. Each test of a model requires the reconstruction of the main air duct for the test. Given the complexity of the air duct structure, the reconstruction of the test main air duct not only brings higher production costs, but also prolongs the production cycle, which poses a challenge to test efficiency and cost control. Summary of the invention

[0004] In view of this, the present disclosure provides a test device for a rail vehicle air conditioning system, which can improve test efficiency.

[0005] As one aspect of an embodiment of the present disclosure, a test device for a rail vehicle air-conditioning system is provided, comprising a first baffle and a second baffle arranged at intervals; and a plurality of air duct units, which are detachably mounted on the test vehicle body along the length direction of the test vehicle body and are located between the first baffle and the second baffle, so that the air duct formed by the plurality of the air duct units is closed by the first baffle and the second baffle to form a simulated air duct, wherein the simulated air duct is suitable for simulating the air duct of the air-conditioning system of the test vehicle body, wherein an air inlet is formed on the first baffle, and the air inlet is connected to an air supply port of an air-conditioning unit of the air-conditioning system, so that air from the air-conditioning unit is conditioned by the simulated air duct and then supplied to the compartment of the test vehicle body; wherein each of the air duct units is configured to be adjustable along the width direction of the test vehicle body to match test vehicles of different models.

[0006] According to the embodiments of the present disclosure, each of the above-mentioned air duct units is formed with an air inlet duct, which is connected with the above-mentioned air supply port; a static pressure chamber, which is adjustably arranged on the side of the above-mentioned air inlet duct in the above-mentioned width direction and is connected with the above-mentioned air inlet duct, and the air from the above-mentioned air-conditioning unit is discharged into the above-mentioned static pressure chamber from the above-mentioned air supply port via the above-mentioned air inlet duct, wherein the above-mentioned static pressure chamber is connected with the above-mentioned compartment through an air supply duct to deliver the air conditioned by the above-mentioned static pressure chamber into the above-mentioned compartment; and a return air duct, which is adjustably arranged on the side of the above-mentioned air inlet duct in the above-mentioned width direction, and the above-mentioned return air duct is connected with the above-mentioned compartment through a return air duct, so as to return the circulating air after circulating inside the above-mentioned compartment to the above-mentioned air-conditioning unit through the above-mentioned return air duct to participate in the next circulation.

[0007] According to an embodiment of the present disclosure, each of the above-mentioned air supply units includes two support plates, which are arranged at intervals on the above-mentioned test vehicle body in the height direction and are located between the above-mentioned first baffle plate and the above-mentioned second baffle plate, and each of the above-mentioned support plates is adjustable along the above-mentioned width direction; two connecting plates, which are arranged at intervals between the two support plates to cooperate with the two above-mentioned support plates to form a cavity; a first partition plate, which is arranged between the two support plates at intervals with the two above-mentioned connecting plates, and the above-mentioned partition plate divides the above-mentioned cavity into an air inlet duct and an adjusting air duct; and a second partition plate, which is arranged between the adjacent above-mentioned connecting plates and the above-mentioned partition plate to divide the above-mentioned adjusting air duct into the above-mentioned static pressure chamber and the above-mentioned return air duct; wherein, a plurality of ventilation holes are respectively formed on the above-mentioned first partition plates, and the air from the above-mentioned air inlet duct is discharged into the above-mentioned static pressure chamber via the plurality of above-mentioned ventilation holes.

[0008] According to an embodiment of the present disclosure, the support plate includes a plurality of fixing portions; and a plurality of adjusting portions, each of the adjusting portions is disposed between two adjacent fixing portions, and the plurality of adjusting portions are configured to be adjustable along the width direction.

[0009] According to an embodiment of the present disclosure, each of the above-mentioned adjusting parts includes two main body parts, one of the above-mentioned main body parts is slidably arranged on the other above-mentioned main body part along the above-mentioned width direction; and two connecting parts, which are respectively arranged at one end of the two main body parts close to the above-mentioned fixing part, and the above-mentioned connecting parts are suitable for accommodating the edge of the above-mentioned fixing part.

[0010] According to an embodiment of the present disclosure, each of the above-mentioned connecting parts includes an extension part extending from the main body in the height direction, wherein the above-mentioned connecting part located at the bottom extends upward, and the above-mentioned connecting part located at the bottom extends downward; and a matching part extending from the end of the above-mentioned extension part opposite to the above-mentioned main body in the horizontal direction toward the direction approaching the adjacent above-mentioned fixing part, so as to cooperate with the above-mentioned main body and the above-mentioned extension part to form a receiving groove, and to accommodate the edge of the above-mentioned fixing part in the above-mentioned receiving groove.

[0011] According to an embodiment of the present disclosure, an adjustment hole extending along the width direction is formed on one of the two main body parts, and a through hole aligned with the adjustment hole up and down is formed on the other of the two main body parts, so that after adjusting the relative position between the two main body parts, the two main body parts can be fixed by a positioning piece passing through the adjustment hole and the through hole.

[0012] According to an embodiment of the present disclosure, the above-mentioned first partition plate includes: a first partition plate, which is adjustably installed on the support plate located above along the above-mentioned width direction; a second partition plate, which is adjustably installed on the support plate located below along the above-mentioned width direction, wherein a plurality of the above-mentioned ventilation holes are formed on the above-mentioned second partition plate or the above-mentioned first partition plate; and an adjustment plate, which is slidably installed between the first partition plate and the second partition plate along the height direction, and is suitable for adjusting the opening size of the above-mentioned ventilation holes to adjust the amount of air discharged into the above-mentioned static pressure chamber.

[0013] According to an embodiment of the present disclosure, the second partition plate includes a plurality of mounting portions, which are arranged between adjacent adjustment plates and the connecting plates along a direction parallel to the support plate; and at least one adjustment portion, which is adjustably installed between two adjacent mounting portions along the width direction.

[0014] According to an embodiment of the present disclosure, each of the air supply units further includes a plurality of support portions, which are respectively supported between the mounting portion and the support plate located therebelow and are adjustably supported along a height direction.

[0015] According to an embodiment of the present disclosure, each of the air duct units is provided with a plurality of inspection ports that can be opened and closed, so that the air duct unit can be adjusted by opening the inspection ports and the air duct unit can be sealed by closing the inspection ports.

[0016] According to the test device for the rail vehicle air conditioning system of the embodiment of the present disclosure, by setting a plurality of detachable air duct units between the first baffle and the second baffle, the length of the corresponding test vehicle body can be matched by adjusting the number of air duct units. Since each air duct unit can be adjusted in the width direction of the test vehicle body, the air duct unit can be adjusted through the hole to match the width of the corresponding test vehicle body, meeting the requirements of test vehicles of different models for air duct size, thereby improving the versatility and flexibility of the test device. The modular design of each air duct unit facilitates installation, maintenance and replacement, and can adjust the simulated air duct according to different test vehicle models without redesigning and manufacturing the entire air duct system, saving test costs, shortening the test cycle, and improving test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and other objects, features and advantages of the present disclosure will become more apparent through the following description of the embodiments of the present disclosure with reference to the accompanying drawings, in which:

[0018] Figure 1 A perspective view schematically shows an air duct unit according to an embodiment of the present disclosure;

[0019] Figure 2 A perspective view schematically shows an air duct unit according to another embodiment of the present disclosure;

[0020] Figure 3 A perspective view schematically shows an air duct unit according to another embodiment of the present disclosure;

[0021] Figure 4 Schematically shows Figure 3 A side view of the duct unit shown;

[0022] Figure 5 Schematically shows a perspective view of a first viewing angle of an air duct unit after removing a support plate according to an embodiment of the present disclosure;

[0023] Figure 6 Schematically shows a perspective view of the air duct unit according to an embodiment of the present disclosure after removing a support plate from the second viewing angle;

[0024] Figure 7 Schematically shows Figure 6 A partial enlarged view of part A of the air duct unit shown;

[0025] Figure 8 Schematically shows a partial stereoscopic view of an air duct unit 2 according to another embodiment of the present disclosure;

[0026] Fig. 9 A partial perspective view schematically shows an adjustment portion according to an embodiment of the present disclosure; and

[0027] Fig.10 A side view of a skeleton according to an embodiment of the present disclosure is schematically shown.

[0028] The following are the descriptions of the reference numerals:

[0029] 1- first baffle;

[0030] 11-Air Inlet

[0031] 2- Air duct unit;

[0032] 21- air inlet duct;

[0033] 22-static pressure chamber;

[0034] 221-First opening;

[0035] 23-return air duct;

[0036] 231-Second opening;

[0037] 24- support plate;

[0038] 241-fixed part;

[0039] 242-Regulation Department;

[0040] 2421-Ontology Department;

[0041] 2422-connection part;

[0042] 2423-cooperation department;

[0043] 2424-Extension;

[0044] 243-Inspection port;

[0045] 244-gasket;

[0046] 25-connecting plate;

[0047] 26- first partition plate;

[0048] 261- first partition;

[0049] 2611-first connection portion;

[0050] 2612-first extension;

[0051] 262-second partition;

[0052] 2621-Ventilation holes;

[0053] 2622- second connection part;

[0054] 2623-second extension;

[0055] 263-adjustment plate;

[0056] 264-Baffle;

[0057] 27- second partition plate;

[0058] 271-installation department;

[0059] 272-Adjustment Department;

[0060] 273-support part;

[0061] 28- buffer plate;

[0062] 3- The third baffle;

[0063] 31-connection hole;

[0064] 4- Skeleton;

[0065] 41- top skeleton;

[0066] 42-Side frame. DETAILED DESCRIPTION

[0067] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. However, it should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present disclosure. In the following detailed description, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the embodiments of the present disclosure. However, it is apparent that one or more embodiments may also be implemented without these specific details. In addition, in the following description, descriptions of known structures and technologies are omitted to avoid unnecessary confusion of the concepts of the present disclosure.

[0068] The terms used herein are only for describing specific embodiments and are not intended to limit the present disclosure. The terms "comprise", "include", etc. used herein indicate the existence of the features, steps, operations and / or components, but do not exclude the existence or addition of one or more other features, steps, operations or components.

[0069] All terms (including technical and scientific terms) used herein have the meanings commonly understood by those skilled in the art unless otherwise defined. It should be noted that the terms used herein should be interpreted as having a meaning consistent with the context of this specification and should not be interpreted in an idealized or overly rigid manner.

[0070] When using expressions such as "at least one of A, B, and C, etc.", they should generally be interpreted according to the meaning of the expression commonly understood by those skilled in the art (for example, "a system having at least one of A, B, and C" should include but is not limited to a system having A alone, B alone, C alone, A and B, A and C, B and C, and / or A, B, C, etc.).

[0071] Figure 1 The figure schematically shows a three-dimensional view of an air duct unit according to an embodiment of the present disclosure. Figure 2 Schematically shows a three-dimensional view of an air duct unit according to another embodiment of the present disclosure, Figure 3 A perspective view of an air duct unit according to yet another embodiment of the present disclosure is schematically shown.

[0072] As one aspect of the embodiments of the present disclosure, a test device for a rail vehicle air conditioning system is provided. Figures 1 to 3As shown, the test device includes a first baffle 1 and a second baffle (not shown in the figure) arranged at intervals, and a plurality of air duct units 2. The plurality of air duct units 2 are detachably mounted on the test vehicle body along the length direction of the test vehicle body, and are detachably mounted between the first baffle 1 and the second baffle, so that the air duct formed by the plurality of air duct units 2 is closed by the first baffle 1 and the second baffle to form a simulated air duct, which is suitable for simulating the air duct of the air conditioning system of the test vehicle body, wherein an air inlet 11 is formed on the first baffle 1, and the air inlet 11 is connected to the air supply port of the air conditioning unit of the air conditioning system, so that the air from the air conditioning unit is conditioned by the simulated air duct and then supplied to the compartment of the test vehicle body. Each air duct unit 2 is configured to be adjustable along the width direction of the test vehicle body to match the test vehicle body of different models.

[0073] According to the test device for the rail vehicle air conditioning system of the embodiment of the present disclosure, by arranging a plurality of detachable air duct units 2 between the first baffle 1 and the second baffle, the length of the corresponding test vehicle body can be matched by adjusting the number of air duct units 2. Since each air duct unit 2 can be adjusted in the width direction of the test vehicle body, the air duct unit 2 can be adjusted through the hole to match the width of the corresponding test vehicle body, so as to meet the requirements of test vehicles of different models for the air duct size, thereby improving the versatility and flexibility of the test device. The modular design of each air duct unit 2 facilitates installation, maintenance and replacement, and can adjust the simulated air duct according to different test vehicle models, without the need to redesign and manufacture the entire air duct system, thus saving test costs, shortening the test cycle, and improving test efficiency.

[0074] According to the embodiments of the present disclosure, Figure 1 As shown, the first baffle 1 is installed on the air duct unit 2 at the air inlet end and is located at the air inlet end of the air duct unit 2. In the flow direction of air in the air inlet duct 21, the second baffle is installed on the air duct unit 2 at the tail end and is located at the tail end of the air duct unit 22.

[0075] According to an embodiment of the present disclosure, the number of the first baffle 1 and the second baffle can be multiple. The multiple first baffles 1 and the multiple second baffles can have different sizes so as to match the adjusted air duct unit 2 by replacing the first baffle 1 and the second baffle.

[0076] In an illustrative embodiment, Figure 1 As shown, in the air duct unit 2 installed with the first baffle 11 , a buffer plate 28 is also installed near the air inlet 11 to optimize the air flow path so that the airflow can be more evenly distributed after entering the air duct unit 22 .

[0077] According to an embodiment of the present disclosure, the test vehicle body is a test vehicle body of a rail vehicle.

[0078] In an illustrative embodiment, the number of air duct units 2 can be increased or decreased as needed. For a size less than one air duct unit 2, the air duct unit 2 can be cut as needed and the connecting plates 25 located on both sides of the air duct unit 2 can be replaced (described in detail later).

[0079] Figure 4 Schematically shows Figure 3 A side view of the duct unit is shown.

[0080] According to the embodiments of the present disclosure, Figure 4 As shown, each air duct unit 2 is formed with an air inlet duct 21, a static pressure chamber 22 and a return air duct 23. The air inlet duct 21 is connected with the air supply port through the air inlet 11 on the first baffle 1, and the air inlet duct 21 is adjustable in the width direction of the test vehicle body. The static pressure chamber 22 is adjustably arranged on the side of the air inlet duct 21 in the width direction and is connected with the air inlet duct 21. The air from the air conditioning unit is discharged from the air supply port into the static pressure chamber 22 through the air inlet duct 21, wherein each static pressure chamber 22 is connected with the vehicle compartment through a plurality of first openings 221 on the static pressure chamber 22 via an air supply duct, so as to deliver the air conditioned by the static pressure chamber 22 into the vehicle compartment. The return air duct 23 is adjustably arranged on the side of the air inlet duct 21 in the width direction. Each return air duct 23 is connected to the vehicle compartment through a return air duct via a plurality of second openings 231 on the return air duct 23, so that the circulating air after circulating through the vehicle compartment is returned to the air-conditioning unit through the return air duct 23 to participate in the next circulation.

[0081] In such an embodiment, the air inlet duct 21, the static pressure chamber 22 and the return air duct 23 can all be adjusted in the width direction, that is, the space size of the air inlet duct 21, the static pressure chamber 22 and the return air duct 23 is adjustable, so that the air volume distribution can be adjusted according to the needs of different models, so that the air conditioning system can adapt to compartments of different widths, improving the adaptability of the test device. The cross-sectional size of the air duct can also be changed according to the test requirements and the interface position, and the air volume configuration of the air conditioning outlet and return air in the test is convenient.

[0082] In an illustrative embodiment, Figures 1 to 4 As shown, each air duct unit 2 is formed with an air inlet duct 21, two static pressure chambers 22 and two return air ducts 23. The air inlet duct 21 is connected to the air supply port through the air inlet 11, and the air inlet duct 21 is adjustable in the width direction of the test vehicle body. The two static pressure chambers 22 are adjustably arranged on both sides of the air inlet duct 21 in the width direction and are connected to the air inlet duct 21. The two return air ducts 23 are adjustably arranged on both sides of the air inlet duct 21 in the width direction, and are respectively located above (or below) the two static pressure chambers 22.

[0083] In an illustrative embodiment, Figure 2As shown, the test device for the rail vehicle air conditioning system also includes a third baffle 3. The third baffle 3 is provided with a connection hole 31 connected to the air inlet duct 21. A simulation unit is arranged on a compartment of the test vehicle body, and the simulation unit located at the air inlet end includes a first baffle 1, a third baffle 3 and a plurality of air duct units 2, and the plurality of air duct units 2 are installed between the first baffle 1 and the third baffle 3. The simulation unit located at the tail end along the flow direction of air in the air inlet duct 21 includes a second baffle, a third baffle 3 and a plurality of air duct units 2, and the plurality of air duct units 2 are installed between the second baffle and the third baffle 3. The simulation unit located at the middle position between the tail end and the air inlet end includes two third baffles 3 and a plurality of air duct units 2, and the plurality of air duct units 2 are installed between the two third baffles 3. The connection holes 31 on the third baffles 3 facing two adjacent simulation units are connected through a pipeline, so that the air inlet ducts 21 of the plurality of simulation units are connected.

[0084] According to an embodiment of the present disclosure, the air conditioning unit of the air conditioning system discharges the processed air (e.g., cold air after refrigeration) into the air inlet duct 21. The static pressure chamber 22 provides a buffer space so that the air from the air inlet duct 21 can be evenly distributed before entering the air supply duct, thereby improving the uniformity of the air supply. The air transported from the air supply duct to the vehicle compartment changes its temperature after circulating inside the vehicle compartment, and leaves the vehicle compartment through the return air duct, and returns to the air conditioning unit through the return air duct 23 to participate in the next cycle.

[0085] In an illustrative embodiment, there may be multiple air supply ducts and multiple air return ducts.

[0086] Figure 5 The figure schematically shows a perspective view of the air duct unit according to an embodiment of the present disclosure after removing a support plate from the air duct unit. Figure 6 A perspective view schematically shows a second viewing angle of the air duct unit after removing a support plate according to an embodiment of the present disclosure, Figure 7 Schematically shows Figure 6 A partial enlarged view of part A of the air duct unit is shown.

[0087] According to the embodiments of the present disclosure, Figures 1 to 7As shown, each air supply unit includes two support plates 24, two connecting plates 25, a first partition plate 26 and a second partition plate 27. The two support plates 24 are arranged on the test vehicle body at intervals in the height direction and are located between the first baffle plate 1 and the second baffle plate. Each support plate 24 is adjustable along the width direction of the test vehicle body. The two connecting plates 25 are arranged between the two support plates 24 at intervals to cooperate with the two support plates 24 to enclose a cavity. The first partition plate 26 and the two connecting plates 25 are arranged between the two support plates 24 at intervals, and the partition plate divides the cavity into an air inlet duct 21 and an adjusting duct. The second partition plate 27 is arranged between the adjacent connecting plates 25 and the partition plate to divide the adjusting duct into a static pressure chamber 22 and a return air duct 23. Among them, a plurality of ventilation holes 2621 are formed on the first partition plate 26, and the air from the air inlet duct 21 is discharged into the static pressure chamber 22 through the plurality of ventilation holes 2621.

[0088] In such an embodiment, a stable frame structure with a cavity is formed by two width-adjustable support plates 24 and two connecting plates 25. The cavity is divided into an adjustable air inlet duct 21, a static pressure chamber 22 and a return air duct 23 by a first partition plate 26 and a second partition plate 27, so that the air supply unit can adapt to the size requirements of the test vehicle body of different models, thereby improving the versatility and adaptability of the test device. At the same time, the multiple ventilation holes 2621 formed on the first partition plate 26 can ensure that the air from the air inlet duct 21 is evenly discharged into the static pressure chamber 22, so that the air delivered to the compartment is more evenly distributed.

[0089] In an exemplary embodiment, the support plate 24 at the bottom may be integrally or separately arranged with the two connecting plates 25. The separate arrangement may be in the form of threaded connection.

[0090] According to an embodiment of the present disclosure, each support plate 24 includes a plurality of fixing portions 241 and a plurality of adjusting portions 242. Each adjusting portion 242 is disposed between two adjacent fixing portions 241, and the plurality of adjusting portions 242 are configured to be adjustable along the width direction.

[0091] In such an embodiment, the adjustability of the adjusting portion 242 enables the support plate 24 to adapt to test vehicle bodies of different widths, so that the test device can be flexibly applied to test vehicle bodies of various models, thereby improving the flexibility of the test device. The combined design of the fixing portion 241 and the adjusting portion 242 enhances the overall structural stability of the support plate 24, and maintains good support performance even after adjustment.

[0092] In an illustrative embodiment, the number of the fixing parts 241 is m, and the number of the adjusting parts 242 is n, then m=n+1, wherein n and m are both positive integers.

[0093] In an illustrative embodiment, Figures 1 to 6 As shown, each support plate 24 includes three fixing portions 241 and two adjusting portions 242 .

[0094] In another exemplary embodiment, each support plate 24 includes four fixing portions 241 and three adjusting portions 242. It is understood that the number of the fixing portions 241 and the adjusting portions 242 can be determined according to the width of the test vehicle body, the width of the fixing portion 241 (the dimension in the width direction of the test vehicle body), and the width of the adjusting portion 242 (the dimension in the width direction of the test vehicle body).

[0095] According to the embodiments of the present disclosure, Figures 1 to 7 As shown, the first partition plate 26 includes a first partition plate 261, a second partition plate 262 and an adjustment plate 263. The first partition plate 261 is adjustably mounted on the support plate 24 located above along the width direction, and the second partition plate 262 is adjustably mounted on the support plate 24 located below along the width direction, wherein a plurality of ventilation holes 2621 are formed on the second partition plate 262 or the first partition plate 261. The adjustment plate 263 is slidably mounted between the first partition plate 261 and the second partition plate 262 along the height direction, and is suitable for adjusting the opening size of the ventilation holes 2621 to adjust the air volume discharged into the static pressure chamber 22.

[0096] In such an embodiment, by providing the adjustment plate 263, the up and down movement of the plate 263 can be adjusted at will to adjust the opening size of the ventilation hole 2621 during the air supply uniformity test, thereby facilitating the adjustment of the air supply uniformity.

[0097] In such an embodiment, the size of the adjustment plate 263 is smaller than the distance between the two support plates 24 , so that the adjustment plate 263 can move between the first partition plate 261 and the second partition plate 262 .

[0098] In an exemplary embodiment, a plurality of ventilation holes 2621 are formed on the second partition plate 262. A long hole extending in the height direction is provided on one of the first partition plate 261 and the adjustment plate 263, and a through hole is provided on the other of the first partition plate 261 and the adjustment plate 263. An external fastener (such as a bolt) passes through the through hole, adjusts the position on the long hole, and fixes the position of the adjustment plate 263 by a locking member (such as a nut).

[0099] In such an embodiment, Figures 1 to 6As shown, each air duct unit 2 also includes a gasket 244. A fastener (such as a bolt) passes through the gasket 244, the through hole and the long hole (or called the adjustment hole) to seal the long hole. The radius of the gasket 244 is greater than or equal to the length of the long strip-shaped adjustment hole (or called the long hole). By providing the gasket 244, the air duct unit 2 can be airtight on the basis of being adjustable, ensuring that there is no air volume leakage during the experiment and ensuring the accuracy of the test results.

[0100] Figure 8 A partial stereoscopic view of an air duct unit according to another embodiment of the present disclosure is schematically shown.

[0101] In another exemplary embodiment, the first partition plate 26 includes a first partition plate 261, a second partition plate 262, an adjustment plate 263 and a plurality of baffles 264. The first partition plate 261 is adjustably mounted on the support plate 24 located above along the width direction, and the second partition plate 262 is adjustably mounted on the support plate 24 located below along the width direction, wherein a plurality of ventilation holes 2621 are formed on the second partition plate 262 or the first partition plate 261. Each baffle plate 264 is slidably mounted on the adjustment plate 263 in the height direction, and the plurality of baffle plates 264 are adapted to adjust the opening size of each ventilation hole 2621 respectively. In the air supply uniformity test, the position of each baffle plate 264 relative to each ventilation hole 2621 can be adjusted respectively, so as to facilitate the adjustment of air supply uniformity and meet the air supply uniformity adjustment requirements.

[0102] In such an embodiment, a long hole extending in the height direction is formed on one of the adjustment plate 263 and the baffle plate 264, and a through hole is formed on the other of the adjustment plate 263 and the baffle plate 264. A plurality of external fasteners (such as bolts) pass through the through hole to adjust the position on the long hole, and the positions of the plurality of baffle plates are fixed respectively by a plurality of locking members (such as nuts). It is understandable that the long hole can be sealed by a gasket 244 having a radius greater than the length of the long hole.

[0103] In an illustrative embodiment, a long hole extending in the height direction is opened on one of the adjustment plate 263 and the first partition plate 261, and a through hole is opened on the other of the adjustment plate 263 and the first partition plate 261. Multiple external fasteners (such as bolts) pass through the through holes and adjust their positions on the long holes. The distance between the two support plates 24 in the height direction is adjusted by cooperating with multiple locking members (such as nuts).

[0104] In such an embodiment, the test device further includes an adjusting member that can be adjusted in the height direction with the two connecting plates 25. A long hole extending in the height direction is provided on one of the connecting plate 25 and the adjusting member that are in contact, and a through hole is provided on the other of the connecting plate 25 and the adjusting member. A plurality of external fasteners (such as bolts) pass through the through hole and adjust their positions on the long hole. The distance between the two support plates 24 in the height direction is adjusted by cooperating with a plurality of locking members (such as nuts).

[0105] According to the embodiments of the present disclosure, Figure 7 and Figure 8 As shown, the first partition plate 261 includes a first connecting portion and a first extending portion 2612. The first extending portion 2612 extends downward from one side of the first connecting portion 2611 located in the width direction of the test vehicle body, and a long hole extending in the width direction of the test vehicle body is formed on one of the first connecting portion 2611 and the fixing portion 241 of the support plate 24 for mounting the first connecting portion 2611, and a through hole is formed on the other of the first connecting portion 2611 and the fixing portion 241, so that the relative position between the first connecting portion 2611 and the fixing portion 241 can be fixed by the cooperation of the fastener, the gasket 244 and the nut, and the first connecting portion 2611 and the fixing portion 241 are sealed.

[0106] Similarly, the second partition plate 262 includes a second connecting portion and a second extending portion 2623. The second extending portion 2623 extends upward from one side of the second connecting portion 2622 located in the width direction of the test vehicle body. A long hole extending in the width direction of the test vehicle body is formed on one of the second connecting portion 2622 and the fixing portion 241 of the support plate 24 for mounting the second connecting portion 2622, and a through hole is formed on the other of the second connecting portion 2622 and the fixing portion 241, so that the relative position between the second connecting portion 2622 and the fixing portion 241 can be fixed by the cooperation of the fastener, the gasket 244 and the nut, and the second connecting portion 2622 and the fixing portion 241 are sealed. Among them, the adjustment plate 263 is installed on the first extending portion 2612 and the second extending portion 2623.

[0107] In an exemplary embodiment, the ventilation hole 2621 is formed at the bottom of the second connecting portion 2622. The ventilation hole 2621 may be in a rectangular shape.

[0108] In an illustrative embodiment, the number of the first partition plates 26 may be two.

[0109] According to an embodiment of the present disclosure, the second partition plate 27 includes a plurality of mounting portions 271 and at least one adjusting portion 272. The plurality of mounting portions 271 are arranged between adjacent adjusting plates 263 and connecting plates 25 in a direction parallel to the supporting plate 24, and the adjusting portion 272 is adjustably installed between two adjacent mounting portions 271 in a width direction.

[0110] In such an embodiment, the adjustability of the adjustment portion 272 and the adjustability of the first partition plate 26 allow the second partition plate 27 to be adjusted in the width direction, thereby changing the dimensions of the static pressure chamber 22 and the return air duct 23 in the width direction of the test vehicle body, while ensuring the sealing properties of the air supply duct, the static pressure chamber 22 and the return air duct 23, thereby adapting to the air duct test requirements of different vehicle models.

[0111] In an illustrative embodiment, the number of the second partition plates 27 may be two.

[0112] According to an embodiment of the present disclosure, the structure of the mounting portion 271 may be similar to that of the fixing portion 241 of the support plate 24 . The structure of the adjusting portion 272 may be similar to that of the regulating portion 242 of the support plate 24 .

[0113] According to the embodiments of the present disclosure, Figure 6 and Figure 7 As shown, each air supply unit further includes a plurality of support portions 273. The plurality of support portions 273 are respectively supported between the mounting portion 271 and the support plate 24 located below in an adjustable height direction, so that the size of the return air duct 23 and the static pressure chamber 22 can be adjusted by adjusting the height of the support portion 273.

[0114] According to the embodiment of the present disclosure, each support portion 273 includes two support members. The cross section of each support member in the width direction of the test vehicle body is L-shaped, and a long hole 2731 extending in the height direction is formed on one of the two contact portions where the two L-shaped support members contact each other, and a through hole is formed on the other contact portion, so that the relative position between the two L-shaped support members can be coordinated by the screw and the nut to achieve the position adjustment of the second partition plate 27 in the height direction, thereby achieving the adjustment of the size of the static pressure chamber 22 and the return air duct 23.

[0115] According to the embodiments of the present disclosure, Figure 5 and Figure 6 As shown, each of the air duct units 2 is provided with a plurality of inspection openings 243 that can be opened and closed, so that the air duct unit 2 can be adjusted by opening the inspection openings 243 and the air duct unit 2 can be sealed by closing the inspection openings 243 .

[0116] Further Figure 5 and Figure 6As shown, a plurality of inspection openings 243 that can be opened and closed are provided on the support member at the bottom, so that the adjustment plate 263 can be adjusted by opening the inspection openings 243 and the air supply duct can be closed by closing the inspection openings 243.

[0117] In an illustrative embodiment, an inspection port 243 is provided at the bottom of the static pressure chamber 22 and the air supply duct, so that the internal structure of each air duct unit 2 and the size of the ventilation hole 2621 can be easily adjusted and inspected.

[0118] Fig. 9 A partial perspective view of an adjustment portion according to an embodiment of the present disclosure is schematically shown.

[0119] According to the embodiments of the present disclosure, Fig. 9 As shown, each adjusting portion 242 includes two body portions 2421 and two connecting portions 2422. One of the body portions 2421 is slidably arranged on the other body portion 2421 along the width direction, and the two connecting portions 2422 are respectively arranged at one end of the two body portions 2421 close to the fixing portion 241, and the connecting portion 2422 is suitable for accommodating the edge of the fixing portion 241.

[0120] In such an embodiment, the connecting portion 2422 accommodates the edge of the fixing portion 241, which helps to maintain the overall structural stability of the support plate 24, and does not affect the support effect even after adjustment. The sliding mechanism of the main body 2421 allows the adjustment portion 242 to be adjusted without disassembling the entire support plate 24, which is convenient for maintenance and future size adjustment.

[0121] According to the embodiments of the present disclosure, Fig. 9 As shown, an adjustment hole extending in the width direction is formed on one of the two main body parts 2421, and a through hole aligned with the adjustment hole up and down is formed on the other of the two main body parts 2421, so that after adjusting the relative position between the two main body parts 2421, the two main body parts 2421 can be fixed by a positioning piece passing through the adjustment hole and the through hole.

[0122] In such an embodiment, the two main bodies 2421 and the connecting portion 2422 can slide left and right, and after sliding into place, tightening a nut (not shown) can achieve stretching and contraction adjustment of the adjusting portion 242 .

[0123] In an illustrative embodiment, the adjusting portion 242 further includes a sealing strip installed between the two main body portions 2421 to seal the two main body portions 2421 .

[0124] The fastener (such as a bolt) passes through the gasket 244, the through hole and the adjustment hole to seal the adjustment hole. The radius of the gasket 244 is greater than or equal to the length of the long strip-shaped adjustment hole. By providing the gasket 244 and the sealing strip, the air duct unit 2 can be made airtight on the basis of being adjustable, ensuring that there is no air volume leakage during the experiment and ensuring the accuracy of the test results.

[0125] According to the embodiments of the present disclosure, Fig. 9 As shown, each connection portion 2422 includes an extension portion 2424 and a matching portion 2423. The extension portion 2424 extends from the body portion 2421 in the height direction, wherein the connection portion 2422 located below extends upward, and the connection portion 2422 located below extends downward. The matching portion 2423 extends from one end of the extension portion 2424 opposite to the body portion 2421 in the horizontal direction toward the adjacent fixing portion 241, so as to cooperate with the body portion 2421 and the extension portion 2424 to form a receiving groove, and the edge of the fixing portion 241 is received in the receiving groove.

[0126] In such an embodiment, the extension portion 2424 extends from the main body portion 2421 in the height direction, and the matching portion 2423 extends in the horizontal direction, together with the main body portion 2421 to form a U-shaped receiving groove, through which the edge of the fixing portion 241 can be firmly fixed to ensure that the adjusting portion 242 remains in the receiving groove after adjustment, and the edge of the fixing portion 241 can be firmly fixed to ensure that the adjusting portion 242 remains in the set position after adjustment.

[0127] According to an embodiment of the present disclosure, a rubber pad may be filled in the gap between the receiving groove and the fixing portion 241 to ensure sealing between the receiving groove and the fixing portion 241 .

[0128] In an illustrative embodiment, the adjusting portion 242 may be made of aluminum profile.

[0129] Fig.10 A side view of a skeleton according to an embodiment of the present disclosure is schematically shown.

[0130] In an exemplary embodiment, at least one of the air supply duct and the air return duct may adopt a frame 4 plus skin structure, such as Fig.10 As shown, the frame 4 includes a top frame 41 and a side frame 42. The top frame is a strip of metal strips, and a hook and wool Velcro is glued on one side of the joint with the side frame. The cross section of the pipe can be adjusted within a certain range by deforming the frame or the length of Velcro. After the frame is shaped, it is covered with a cloth skin, and the skin material can be glass fiber cloth.

[0131] In an illustrative embodiment, the number of the top frame 41 and the number of the side frame 42 may both be two.

[0132] In an illustrative embodiment, multiple air duct units 2 use 10mm PIR-ALU (aluminum-coated tri-polyester board) material and are modularly constructed. The joints (i.e., the adjustment part 242 and the adjustment part 272) are connected by aluminum profiles to realize the air duct to form various cavities. In the cross section of the air duct unit 2 in the height direction, the middle position is the air supply duct, the upper positions on both sides are the return air duct 23, and the lower positions on both sides are the static pressure chamber 22. The air discharged by the air conditioning unit in the passenger compartment is first sent in through the air supply duct, enters the static pressure chamber 22 through the ventilation holes 2621 on both sides, and then is sent into the passenger compartment (i.e., the interior of the car) through the air supply duct. After circulating in the passenger compartment, it returns to the return air duct 23 through the return air duct, and finally returns to the air conditioning unit to participate in the next round of circulation.

[0133] The experimental device provided by the embodiment of the present disclosure realizes a flexible simulated air duct with a variable diameter that can be adjusted in the length direction, height direction and width direction by setting a plurality of adjustable air duct units 2, so that the cavity space size of the air supply duct, the return air duct 23 and the static pressure chamber 22 inside the air duct in the air conditioning and ventilation system matching test can be adjusted, the cross-sectional size of the air duct can be changed according to the test requirements and the interface position, and the air volume configuration of the air conditioning outlet and return air in the test is convenient. At the same time, the baffle of the static pressure chamber 22 in the air duct is a sliding baffle, and the opening position of the static pressure chamber 22 can be adjusted at will in the air supply uniformity test, thereby facilitating the adjustment of the air supply uniformity. It can match the air duct systems of various vehicle models, meet the air conditioning test requirements of different vehicle models, and improve the efficiency of the air conditioning test; at the same time, it saves the repeated trial production of the test air duct and reduces the test cost.

[0134] It will be appreciated by those skilled in the art that the features described in the various embodiments of the present disclosure may be combined and / or combined in a variety of ways, even if such combinations or combinations are not explicitly described in the present disclosure. In particular, without departing from the spirit and teachings of the present disclosure, the features described in the various embodiments of the present disclosure may be combined and / or combined in a variety of ways. All of these combinations and / or combinations fall within the scope of the present disclosure.

[0135] The embodiments of the present disclosure are described above. However, these embodiments are only for illustrative purposes and are not intended to limit the scope of the present disclosure. Although the embodiments are described above, this does not mean that the measures in the various embodiments cannot be used in combination to advantage. Without departing from the scope of the present disclosure, those skilled in the art may make a variety of substitutions and modifications, which should all fall within the scope of the present disclosure.

Claims

1. A test device for a rail vehicle air conditioning system, characterized in that: include: A first baffle and a second baffle disposed at intervals; as well as A plurality of air duct units are detachably mounted on the test vehicle body along the length direction of the test vehicle body and are located between the first baffle plate and the second baffle plate, so that the air duct formed by the plurality of air duct units is closed by the first baffle plate and the second baffle plate to form a simulated air duct, and the simulated air duct is suitable for simulating the air duct of the air conditioning system of the test vehicle body, wherein an air inlet is formed on the first baffle plate, and the air inlet is connected to the air supply port of the air conditioning unit of the air conditioning system, so that the air from the air conditioning unit is conditioned by the simulated air duct and then supplied to the compartment of the test vehicle body; Wherein, each of the air duct units is configured to be adjustable along the width direction of the test vehicle body to match test vehicles of different models.

2. The test device according to claim 1, characterized in that: Each of the air duct units is formed with: An air inlet duct connected to the air supply port; a static pressure chamber, which is adjustably arranged at a side of the air inlet duct in the width direction and communicated with the air inlet duct, and air from the air conditioning unit is discharged from the air supply port into the static pressure chamber via the air inlet duct, wherein the static pressure chamber is communicated with the vehicle compartment through an air supply duct to deliver air conditioned by the static pressure chamber into the vehicle compartment; and The return air duct is adjustably arranged on the side of the air inlet duct in the width direction, and the return air duct is connected to the vehicle compartment through a return air pipe to return the circulating air after circulating inside the vehicle compartment to the air conditioning unit through the return air duct to participate in the next circulation.

3. The test device according to claim 2, characterized in that: Each of the air supply units comprises: Two support plates are arranged on the test vehicle body at intervals in the height direction and are located between the first baffle plate and the second baffle plate, and each of the support plates is adjustable along the width direction; Two connecting plates are spaced apart between the two supporting plates to cooperate with the two supporting plates to enclose a cavity; A first partition plate, arranged between the two support plates and spaced apart from the two connecting plates, the partition plate dividing the cavity into an air inlet duct and a regulating duct; and A second partition plate is disposed between the adjacent connecting plate and the partition plate to separate the regulating air duct into the static pressure chamber and the return air duct; Wherein, a plurality of ventilation holes are respectively formed on the first partition plate, and the air from the air inlet duct is discharged into the static pressure chamber through the plurality of ventilation holes.

4. The test device according to claim 3, characterized in that: The support plate comprises: a plurality of fixing portions; and A plurality of adjusting portions are provided, each of the adjusting portions is disposed between two adjacent fixing portions, and the plurality of adjusting portions are configured to be adjustable along the width direction.

5. The test device according to claim 4, characterized in that: Each of the adjustment units comprises: two main body parts, wherein one of the main body parts is slidably disposed on the other of the main body parts along the width direction; and Two connecting parts are respectively arranged at one end of the two main body parts close to the fixing part, and the connecting parts are suitable for accommodating the edge of the fixing part.

6. The test device according to claim 5, characterized in that: Each of the connecting parts comprises: An extension portion extending from the main body portion in a height direction, wherein the connection portion located below extends upward and the connection portion located below extends downward; and The matching portion extends horizontally from the end of the extension portion opposite to the main body portion toward the adjacent fixing portion to form a receiving groove in cooperation with the main body portion and the extension portion to receive the edge of the fixing portion in the receiving groove.

7. The test device according to claim 5 or 6, characterized in that: An adjustment hole extending along the width direction is formed on one of the two main body parts, and a through hole aligned with the adjustment hole is formed on the other of the two main body parts, so that after adjusting the relative position between the two main body parts, the two main body parts can be fixed by a positioning piece passing through the adjustment hole and the through hole.

8. The test device according to any one of claims 3 to 6, characterized in that: The first partition plate comprises: A first partition plate is adjustably mounted on the upper support plate along the width direction; A second partition is adjustably mounted on a support plate located below along the width direction, wherein a plurality of ventilation holes are formed on the second partition or the first partition; and an adjustment plate is slidably mounted between the first partition and the second partition along the height direction, and is suitable for adjusting the opening size of the ventilation holes to adjust the amount of air discharged into the static pressure chamber.

9. The test device according to claim 8, characterized in that The second partition plate comprises: a plurality of mounting portions, arranged between adjacent adjustment plates and connecting plates in a direction parallel to the support plate; and At least one adjusting portion is adjustably installed between two adjacent installation portions along the width direction.

10. The test device according to claim 9, characterized in that Each of the air supply units also includes: A plurality of support parts are supported between the mounting part and the support plate located below and are adjustable in height direction.

11. The test device according to any one of claims 1 to 6, characterized in that: Each of the air duct units is provided with a plurality of inspection ports that can be opened and closed, so that the air duct unit can be adjusted by opening the inspection ports and the air duct unit can be sealed by closing the inspection ports.

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