Air duct assembly, air conditioning system and vehicle

Abstract

The utility model relates to a ventilation equipment field provides a kind of air duct assembly, air conditioning system and vehicle.Wind channel component includes air supply device, air supply device includes wind box, and wind box is opened with air inlet and air outlet, air inlet is provided with filter piece, and the position corresponding with air inlet in wind box is provided with air guide piece;Distribution box, fluid communication is in air outlet, and distribution box is provided with valve group, and distribution box includes first air duct, second air duct and third air duct, first air duct is fluid communication with the driver's room of vehicle, second air duct is fluid communication with the traction motor cabin of vehicle, third air duct is fluid communication with the passenger room of vehicle, and valve group is used to distribute the air intake of first air duct, second air duct and third air duct.The air duct assembly can make the airflow output of each air duct stable, avoid the air supply fluctuation caused by external wind pressure variation, ensure the comfort of driver's room, passenger room and the heat dissipation effect of traction motor cabin, improve the reliability of vehicle operation, simplify the structure of air duct assembly.

Description

Technical Field

[0001] This utility model relates to the field of ventilation equipment, and provides a duct component, an air conditioning system, and a vehicle. Background Technology

[0002] In existing technologies, air conditioning systems for various rail vehicles typically have independent fresh air ducts or inlets for individual use by the air conditioning units. If space is limited in the vehicle and the requirements for the fresh air system are complex, setting up a separate fresh air structure for air conditioning often increases the complexity of design and installation.

[0003] For example, rail vehicles operating in areas with high temperatures and strong winds and sandstorms need to have their air conditioning and traction motor systems ventilated by drawing in fresh air from the outside and filtering out sand. If separate fresh air structures or sand removal structures are installed for the air conditioning and traction motor systems, it would undoubtedly further complicate the air conditioning systems of the rail vehicles. Utility Model Content

[0004] This utility model provides a duct assembly to solve the problem of complex structure in related technologies.

[0005] This utility model embodiment also provides an air conditioning system.

[0006] This utility model embodiment also provides a vehicle.

[0007] A first aspect of this utility model provides an air duct assembly, comprising:

[0008] An air supply device, comprising a wind box, an air inlet and an air outlet, a filter element provided at the air inlet, and an air duct element provided inside the wind box at a position corresponding to the air inlet;

[0009] A distribution box is fluidly connected to the air outlet. A valve assembly is provided inside the distribution box. The distribution box includes a first air duct, a second air duct, and a third air duct. The first air duct is fluidly connected to the driver's cab of the vehicle, the second air duct is fluidly connected to the traction motor compartment of the vehicle, and the third air duct is fluidly connected to the passenger compartment of the vehicle. The valve assembly is used to distribute the air intake volume of the first air duct, the second air duct, and the third air duct.

[0010] According to one embodiment of the present invention, a sealing device is also included, which is disposed at at least one of the air inlet and the air outlet.

[0011] According to one embodiment of the present invention, the sealing device includes:

[0012] A first seal is disposed at the air inlet to seal the gap between the air inlet and the vehicle's side skirt;

[0013] A second sealing element is disposed at the air outlet to seal the gap between the air outlet and the distribution box.

[0014] According to one embodiment of the present invention, the first sealing member includes an elastic washer, the elastic washer having a deformation cavity formed inside, and the outer wall of the elastic washer having a first insertion interface and a second insertion interface. The first insertion interface is used to insert the bent section of the air inlet edge, and the second insertion interface is used to insert the vehicle skirt panel.

[0015] According to one embodiment of the present invention, the second sealing element includes:

[0016] The first sealing end is flexibly connected to the air outlet;

[0017] The second sealing end is flexibly connected to the distribution box;

[0018] A corrugated section is connected between the first sealing end and the second sealing end.

[0019] According to one embodiment of the present invention, the filter element includes a frame on which a labyrinth rainwater separator and a fresh air filter are mounted, and at least one of a drain outlet and a sand discharge outlet is provided at the bottom of the frame.

[0020] According to one embodiment of the present invention, the frame is tapered with a wider top and a narrower bottom, and the drain outlet and / or the sand outlet is located at the bottom of the frame.

[0021] According to one embodiment of the present invention, the filter element includes a housing and a sand discharge fan. A plurality of centrifuge cylinders are installed inside the housing, and the sand discharge ports of the centrifuge cylinders are connected to the sand discharge fan through sand discharge pipes.

[0022] A second aspect of this utility model provides an air conditioning system including the aforementioned air duct assembly.

[0023] A third aspect of this utility model provides a vehicle including the aforementioned air duct assembly;

[0024] Or the aforementioned air conditioning system.

[0025] According to the first aspect of the present invention, the air duct assembly provides a filter that effectively intercepts impurities in the air, ensuring clean air delivered to all areas of the vehicle and reducing equipment wear and indoor pollution. The intake fan reduces airflow resistance and improves air supply efficiency, resulting in significantly higher airflow delivery efficiency compared to traditional air duct assemblies. The valve group can independently adjust the airflow of the three air ducts. For example, the airflow of the second air duct can be increased according to the heat dissipation requirements of the traction motor compartment, or the airflow of the third air duct can be adjusted according to the number of passengers in the passenger compartment, achieving on-demand distribution, avoiding energy waste, and being more energy-efficient than a fixed airflow design. The detachable filter facilitates maintenance and reduces operating costs. The multi-air duct design of the distribution box can adapt to the layout requirements of different vehicle models. By adjusting the valve group control logic or the air duct direction, it can be adapted to various vehicle types, demonstrating strong versatility. The synergistic effect of the intake fan and the valve group ensures stable airflow output in each air duct, avoiding air supply fluctuations caused by changes in external wind pressure, ensuring the comfort of the driver's cab and passenger compartment and the heat dissipation effect of the traction motor compartment, improving the reliability of vehicle operation, achieving effective integration of the air duct assembly, and simplifying the structure of the air duct assembly.

[0026] According to the air conditioning system provided in the second aspect of this utility model, the integrated design of the air duct assembly and the air conditioning system achieves full-process coordination of fresh air filtration, temperature treatment, and air volume distribution, reducing energy loss in the air handling process, improving the working efficiency of the air conditioning system, and enabling faster adjustment of the temperature of each area to a suitable range. The valve assembly can flexibly distribute the air volume according to the actual needs of each area. For example, it can deliver more cold air to the densely equipped traction motor compartment to ensure heat dissipation, and adjust the air volume of the passenger compartment according to the number of people to optimize comfort, achieving precise temperature control in different areas, improving the overall comfort of the environment and the reliability of equipment operation. The shared air duct assembly reduces the need for an independent fresh air structure in the air conditioning system, simplifies the layout of system pipelines and components, reduces the installation complexity inside the vehicle, and also makes the overall structure of the air conditioning system more compact, saving installation space. The sealing design and filtration structure of the air duct assembly enable the air conditioning system to maintain a stable working state even in harsh external environments (such as windy sandstorms and rain), preventing external impurities from entering the system and affecting the air conditioning effect or causing equipment failure, thus extending the service life of the air conditioning system.

[0027] According to the third aspect embodiment of this utility model, the filtration and airflow distribution functions of the air duct assembly ensure that all areas of the vehicle receive clean air, while adjusting the airflow as needed. This improves the air quality in the driver's cab and passenger compartment, ensures the heat dissipation needs of the traction motor compartment, and enhances the comfort and reliability of vehicle operation. A single air duct assembly or an integrated air duct assembly air conditioning system can simultaneously meet the air conditioning needs of the driver's cab and passenger compartment, as well as the heat dissipation needs of the traction motor compartment. This avoids the need for separate ventilation structures for different areas in traditional vehicles, reducing the number of pipes and installation complexity, and saving interior space. The sealed design and filtration structure of the air duct assembly prevent external impurities from entering the vehicle or equipment compartment when the vehicle is operating in harsh environments such as sandstorms and heavy rain, protecting the health of the equipment and passengers and reducing the risk of equipment failure due to environmental factors. The removable filters and modular design of the air duct assembly facilitate quick cleaning or replacement of parts during vehicle maintenance. The integrated ventilation system reduces the number of maintenance points, lowering the workload and cost of daily vehicle maintenance. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 This is a schematic perspective view of the air duct assembly provided by this utility model.

[0030] Figure 2 This is a schematic diagram of the distribution box provided by this utility model.

[0031] Figure 3 This is a schematic perspective view of the first sealing element provided by this utility model.

[0032] Figure 4 This is a schematic perspective view of the second sealing element provided by this utility model.

[0033] Figure 5 This is a schematic perspective view of a sealing element provided by this utility model.

[0034] Figure 6 This is a schematic perspective view of another sealing element provided by this utility model.

[0035] Figure 7 This is a schematic diagram of the air duct assembly provided by this utility model.

[0036] Figure label:

[0037] 100. Air supply assembly; 102. Air box; 104. Air intake component; 106. Distribution box; 107. Valve assembly; 108. First air duct; 110. Second air duct; 112. Third air duct; 114. First sealing element; 116. Second sealing element; 118. Elastic washer; 120. Deformation cavity; 122. First insertion interface; 124. Second insertion interface; 126. First sealing end; 128. Second sealing end; 130. Corrugated section; 132. Frame; 134. Rainwater separator; 136. Fresh air filter; 138. Housing; 140. Centrifuge cylinder. Detailed Implementation

[0038] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0039] like Figures 1 to 7 As shown, a first aspect embodiment of the present invention provides a duct assembly, comprising:

[0040] An air supply device includes an air box 102, an air inlet and an air outlet are provided on the air box 102, a filter is provided at the air inlet, and an air duct 104 is provided in the air box 102 at a position corresponding to the air inlet.

[0041] The distribution box 106 is fluidly connected to the air outlet. A valve assembly 107 is provided inside the distribution box 106. The distribution box 106 includes a first air duct 108, a second air duct 110, and a third air duct 112. The first air duct 108 is fluidly connected to the driver's cab of the vehicle, the second air duct 110 is fluidly connected to the traction motor compartment of the vehicle, and the third air duct 112 is fluidly connected to the passenger compartment of the vehicle. The valve assembly 107 is used to distribute the air intake volume of the first air duct 108, the second air duct 110, and the third air duct 112.

[0042] According to the first aspect of the present invention, the air duct assembly provides a filter that effectively intercepts impurities in the air, ensuring clean air delivered to all areas of the vehicle and reducing equipment wear and indoor pollution. The air intake component 104 reduces airflow resistance and improves air supply efficiency, effectively increasing air volume delivery efficiency compared to traditional air duct assemblies. The valve assembly 107 can independently adjust the air intake volume of the three air ducts. For example, it can increase the air volume of the second air duct 110 according to the heat dissipation requirements of the traction motor compartment, or adjust the air volume of the third air duct 112 according to the number of passengers, achieving on-demand distribution, avoiding energy waste, and being more energy-efficient than a fixed air volume design. The detachable filter facilitates maintenance and reduces operating costs. The multi-air duct design of the distribution box 106 can adapt to the layout requirements of different vehicle models. By adjusting the control logic of the valve assembly 107 or the air duct direction, it can be adapted to various vehicle types, demonstrating strong versatility. The synergistic effect of the air duct 104 and the valve group 107 stabilizes the airflow output of each air duct, avoids air supply fluctuations caused by changes in external wind pressure, ensures the comfort of the driver's cab and passenger compartment and the heat dissipation effect of the traction motor compartment, improves the reliability of vehicle operation, realizes the effective integration of air duct components, and simplifies the structure of air duct components.

[0043] Please continue reading Figures 1 to 7 The air duct assembly provided in the first aspect of this utility model, through the coordinated design of the air supply device and the distribution box 106, can achieve precise air supply to different areas of the vehicle through a set of air duct assemblies, simplifying the structure of the air duct assembly and realizing a high degree of integration of the air duct assembly.

[0044] Specifically, the core structure and working principle of the air duct assembly provided in the first aspect embodiment of this utility model are as follows.

[0045] The air box 102 is a hollow box with an air inlet on one side and an air outlet on the other side, forming a continuous airflow channel inside. A filter is installed at the air inlet to intercept dust, particulate matter and other impurities in the air; an air guide 104 is installed inside the air box 102 at the position corresponding to the air inlet to guide and accelerate the airflow, ensuring that air flows into the air box 102 efficiently.

[0046] The filter element adopts a detachable structure, which is easy to clean or replace; the air duct 104 can be a fan or a guide vane. Through mechanical power or fluid dynamics design, the air is filtered through the air inlet and then flows quickly to the air outlet under the action of the air duct 104 to form a stable airflow output.

[0047] The distribution box 106 is in fluid communication with the air outlet of the air box 102 through a pipe. It is equipped with a valve group 107 inside and extends outwards to form a first air duct 108, a second air duct 110, and a third air duct 112. The first air duct 108 connects to the driver's cab, the second air duct 110 connects to the traction motor compartment, and the third air duct 112 connects to the passenger compartment. The diameter and direction of the three air ducts are designed according to the air volume requirements of different areas.

[0048] Valve assembly 107 consists of multiple valves, and the opening degree of each air duct can be adjusted manually or automatically. When the airflow output from the air box 102 enters the distribution box 106, valve assembly 107 allocates the airflow ratio flowing into the first, second, and third air ducts 112 according to preset logic or real-time needs, so as to realize differentiated air supply to different areas.

[0049] The working process of the air duct assembly provided in the first aspect embodiment of this utility model is roughly as follows:

[0050] Outside air enters the air box 102 through the air inlet, is purified by the filter, and is accelerated to the air outlet under the action of the air duct 104.

[0051] The airflow from the air outlet of the air box 102 enters the distribution box 106. The valve group 107 adjusts the opening of each air duct valve according to the needs, and delivers the air to the driver's cab, traction motor compartment and passenger compartment respectively to meet the ventilation, heat dissipation or air conditioning needs of different areas.

[0052] According to one embodiment of the present invention, a sealing device is also included, which is disposed at at least one of the air inlet and the air outlet.

[0053] In one embodiment of this utility model, sealing devices are respectively disposed at the air inlet and the air outlet to seal the gaps between the air supply device and the vehicle structure, and between the air supply device and the distribution box 106. The sealing device at the air inlet fits against the inner side of the vehicle skirt panel, and the sealing device at the air outlet covers the connection between the air outlet and the distribution box 106, forming a continuous sealing structure.

[0054] The sealing device effectively prevents unfiltered outside air from entering the air supply channel, avoiding airflow loss due to gap leakage and ensuring air supply efficiency. It also prevents dust, rainwater, and other impurities from entering the duct through the gaps. The sealing structure reduces noise and vibration caused by airflow leakage, making the duct components operate more stably and reducing the risk of equipment failure due to poor sealing.

[0055] According to one embodiment of the present invention, the sealing device includes:

[0056] The first seal 114 is disposed at the air inlet to seal the gap between the air inlet and the vehicle skirt.

[0057] The second sealing element 116 is disposed at the air outlet to seal the gap between the air outlet and the distribution box 106.

[0058] In one embodiment of this utility model, the first sealing member 114 is an annular structure, sleeved on the outside of the air inlet, with its inner edge fitting against the outer wall of the air inlet and its outer edge pressing against the inner surface of the vehicle skirt; the second sealing member 116 is a flexible connection structure, with one end fixed to the edge of the air outlet and the other end fixed to the inlet edge of the distribution box 106, and the middle part forming a retractable sealing connection.

[0059] The first seal 114 specifically addresses the gap sealing between the air inlet and the skirt plate, while the second seal 116 adapts to the relative displacement between the air outlet and the distribution box 106. The two work together to achieve full-channel sealing, avoiding the limitations of traditional single-seal structures.

[0060] The flexible design of the second seal 116 can compensate for the installation deviation between the air supply device and the distribution box 106, reduce the installation accuracy requirements, and allow slight vibrations during equipment operation to prevent the seal from being damaged due to rigid connection.

[0061] According to one embodiment of the present invention, the first sealing member 114 includes an elastic washer 118, the elastic washer 118 has a deformation cavity 120 formed inside, and the outer wall of the elastic washer 118 has a first insertion interface 122 and a second insertion interface 124. The first insertion interface 122 is used to insert the bent section of the edge of the air inlet, and the second insertion interface 124 is used to insert the skirt of the vehicle.

[0062] In one embodiment of this utility model, the elastic washer 118 is made of elastic material, and the internal deformation cavity 120 allows it to elastically deform under pressure. The first insertion interface 122 on the outer wall of the washer has a groove structure and engages with the bent section of the air inlet edge; the second insertion interface 124 has a slot structure and engages with the flange of the vehicle skirt, forming a double-clamping sealing structure.

[0063] The deformation cavity 120 ensures that the elastic washer 118 maintains a good sealing effect under different installation pressures, eliminating the need for precise control of installation force and adapting to the skirt structure of different vehicle models. The snap-fit ​​design of the connector allows for tool-free installation, and disassembly is achieved simply by prying open the connector, facilitating maintenance and replacement. Compared to bolt fixing methods, installation efficiency is improved.

[0064] According to one embodiment of the present invention, the second sealing member 116 includes:

[0065] The first sealing end 126 is flexibly connected to the air outlet;

[0066] The second sealing end 128 is flexibly connected to the distribution box 106;

[0067] The corrugated section 130 is connected between the first sealing end 126 and the second sealing end 128.

[0068] In one embodiment of this utility model, the first sealing end 126 and the second sealing end 128 are rigid flange structures, which are fixed to the air outlet and the distribution box 106 by bolts, respectively; the corrugated section 130 is a flexible corrugated structure, made of rubber or silicone material, and its two ends are vulcanized to the first sealing end 126 and the second sealing end 128, respectively, to form a sealing channel that can be axially extended and radially bent.

[0069] The flexible structure of the corrugated section 130 can adapt to axial expansion, radial offset, and angular deflection between the air outlet and the distribution box 106, ensuring that the seal remains intact during vehicle operation vibration or thermal expansion and contraction, avoiding the cracking problems of traditional rigid seals. The flexible material of the corrugated section 130 can absorb the vibration noise generated when airflow passes through, effectively reducing noise compared to metal sealing structures and improving the acoustic environment inside the vehicle.

[0070] According to one embodiment of the present invention, the filter element includes a frame 132, on which a labyrinth rainwater separator 134 and a fresh air filter 136 are mounted, and at least one of a drain outlet and a sand outlet is provided at the bottom of the frame 132.

[0071] In one embodiment of this utility model, the frame 132 is a hollow structure, and a labyrinth-type rainwater separator 134 and a fresh air filter 136 are installed inside in sequence. The labyrinth-type rainwater separator 134 is composed of multiple sets of baffles to form a tortuous airflow channel; the bottom of the frame 132 has a drain outlet and a sand discharge outlet, which are used to discharge the separated rainwater and the deposited sand and dust, respectively.

[0072] The labyrinthine structure uses inertia to cause rainwater to collect and flow down the baffle plates. The fresh air filter 136 intercepts fine particles, and the bottom drain and sand discharge outlets promptly remove impurities, preventing filter clogging and ensuring long-term stable filtration efficiency. This filter can handle both rainwater and dust, making it particularly suitable for vehicles in windy, sandy, and rainy areas. Compared to traditional single-function filters, it has wider applicability and reduces the number of devices required.

[0073] According to one embodiment of the present invention, the frame 132 is tapered with a wider top and a narrower bottom, and the drain outlet and / or sand outlet are located at the bottom of the frame 132.

[0074] In one embodiment of this utility model, the cross-section of the frame 132 gradually narrows from top to bottom, forming a conical structure with a pointed bottom. Drainage outlets and sand discharge outlets are located at the pointed bottom of the frame 132, facilitating the natural discharge of rainwater and sand under gravity.

[0075] The conical frame 132 allows rainwater and dust in the airflow to naturally converge at the bottom as it flows downwards, accelerating their discharge using gravity. This prevents impurities from remaining inside the frame 132, resulting in improved impurity discharge efficiency compared to a flat-bottomed frame 132. The conical structure also reduces the probability of impurities accumulating inside the frame 132, extending the cleaning cycle of the filter element, reducing maintenance frequency, and decreasing manual maintenance costs and time.

[0076] According to one embodiment of the present invention, the filter element includes a housing 138 and a sand discharge fan. A plurality of centrifuge cylinders 140 are installed inside the housing 138, and the sand discharge ports of the centrifuge cylinders 140 are connected to the sand discharge fan through sand discharge pipes.

[0077] In one embodiment of this utility model, the housing 138 is cylindrical, and multiple centrifuge cylinders 140 are evenly arranged circumferentially inside. After air enters the housing 138, it flows through the centrifuge cylinders 140. Under the action of centrifugal force, sand and dust are thrown against the cylinder wall and fall into the sand discharge port. The sand discharge fan is connected to the sand discharge port of each centrifuge cylinder 140 through the sand discharge pipe to extract the sand and dust out of the housing 138.

[0078] The centrifuge 140 utilizes centrifugal force to effectively improve the separation efficiency of fine sand and dust, making it particularly suitable for high-wind, sandy environments. This ensures clean air entering the duct and protects downstream equipment. The continuous operation of the sand-discharging fan promptly removes the separated sand and dust, achieving automatic sand-discharging of the filter element. Compared to traditional filters, manual cleaning of sand and dust is unnecessary, significantly reducing maintenance workload.

[0079] A second aspect of this utility model provides an air conditioning system including the aforementioned air duct assembly.

[0080] According to the second aspect of the present invention, the integrated design of the air duct assembly and the air conditioning system achieves full-process coordination of fresh air filtration, temperature treatment, and air volume distribution, reducing energy loss in the air handling process and improving the working efficiency of the air conditioning system. This allows for faster temperature adjustment of each area to a suitable range. The valve assembly 107 can flexibly distribute air volume according to the actual needs of each area. For example, it can deliver more cool air to the densely equipped traction motor compartment to ensure heat dissipation, and adjust the air volume in the passenger compartment according to the number of passengers to optimize comfort, achieving precise temperature control in different areas and improving the overall comfort and reliability of equipment operation. The shared air duct assembly reduces the need for an independent fresh air structure in the air conditioning system, simplifies the layout of system pipes and components, reduces the installation complexity inside the vehicle, and makes the overall structure of the air conditioning system more compact, saving installation space. The sealing design and filtration structure of the air duct assembly enable the air conditioning system to maintain stable operation even in harsh external environments (such as windy, sandy, or rainy conditions), preventing external impurities from entering the system and affecting the air conditioning effect or causing equipment failure, thus extending the service life of the air conditioning system.

[0081] Specifically, the air conditioning system provided in the second aspect of this utility model is characterized by the deep integration of the above-mentioned air duct components with the air conditioning system. The air duct components are used to filter, deliver and distribute fresh air, and work in conjunction with the temperature processing components of the air conditioning system to form a complete air conditioning system.

[0082] The fresh air inlet of the air conditioning system is directly connected to the air inlet of the air duct assembly. The air purified by the filter is sent into the processing chamber of the air conditioning system by the air duct 104. After combining with the evaporator, heater and other components of the air conditioning system to complete the temperature regulation, the air is delivered to the driver's cab, traction motor compartment and passenger compartment respectively through the three air ducts of the distribution box 106.

[0083] The distribution box 106 of the air duct assembly is directly connected to the air supply duct of the air conditioning system. The valve group 107 adjusts the air volume entering different air ducts according to the temperature control requirements of each area, so that the cold and warm air output by the air conditioning system can be accurately delivered to the target area, and the air supply can be achieved on demand.

[0084] Outside air is filtered by the air duct assembly and then enters the air conditioning system, where it is cooled or heated to form an airflow at a suitable temperature. The treated air enters the distribution box 106 of the air duct assembly, and the opening status and airflow ratio of each air duct are controlled by the valve group 107 to deliver the air to the driver's cab, traction motor compartment and passenger compartment respectively to meet the temperature requirements of different areas.

[0085] A third aspect of this utility model provides a vehicle including the aforementioned air duct assembly;

[0086] Or the aforementioned air conditioning system.

[0087] According to the third aspect embodiment of this utility model, the filtration and airflow distribution functions of the air duct assembly ensure that all areas of the vehicle receive clean air, while adjusting the airflow as needed. This improves the air quality in the driver's cab and passenger compartment, ensures the heat dissipation needs of the traction motor compartment, and enhances the comfort and reliability of vehicle operation. A single air duct assembly or an integrated air duct assembly air conditioning system can simultaneously meet the air conditioning needs of the driver's cab and passenger compartment, as well as the heat dissipation needs of the traction motor compartment. This avoids the need for separate ventilation structures for different areas in traditional vehicles, reducing the number of pipes and installation complexity, and saving interior space. The sealed design and filtration structure of the air duct assembly prevent external impurities from entering the vehicle or equipment compartment when the vehicle is operating in harsh environments such as sandstorms and heavy rain, protecting the health of the equipment and passengers and reducing the risk of equipment failure due to environmental factors. The removable filters and modular design of the air duct assembly facilitate quick cleaning or replacement of parts during vehicle maintenance. The integrated ventilation system reduces the number of maintenance points, lowering the workload and cost of daily vehicle maintenance.

[0088] Specifically, the vehicle provided in the third aspect of this utility model has the core improvement of integrating the above-mentioned air duct component or an air conditioning system containing the air duct component. Through the fluid communication design between the air duct component and various areas of the vehicle, the vehicle interior air can be efficiently processed and precisely distributed.

[0089] The aforementioned air duct components are directly installed in the ventilation paths of the driver's cab, traction motor compartment, and passenger compartment. The air inlet of the air supply device is located on the outside of the vehicle skirt. The filter and the air duct 104 work together to purify and guide outside air. The three air ducts of the distribution box 106 are respectively connected to the ventilation openings of the corresponding areas. The valve group 107 adjusts the air volume according to the needs of each area.

[0090] The vehicle is equipped with an air conditioning system that includes the aforementioned air duct components. The air duct components serve as the fresh air module of the air conditioning system and are integrated with the temperature processing components of the air conditioning system (such as evaporators and heaters). The processed air is delivered to various areas of the vehicle through the distribution box 106, forming an integrated air handling process of "filtration-temperature regulation-distribution".

[0091] The air inlet of the air duct assembly or air conditioning system is connected to the outside air of the vehicle. The first air duct 108, the second air duct 110 and the third air duct 112 of the distribution box 106 are fixedly connected to the ventilation openings of the driver's cab, the traction motor compartment and the passenger compartment through the in-vehicle pipes, respectively. The valve group 107 realizes the air volume adjustment through the vehicle's electronic control system or manual control.

[0092] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model 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 of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A duct assembly, characterized in that, include: An air supply device, comprising an air box (102), an air inlet and an air outlet, an air inlet equipped with a filter, and an air duct (104) provided in the air box (102) at a position corresponding to the air inlet. A distribution box (106) is fluidly connected to the air outlet. A valve assembly (107) is provided inside the distribution box (106). The distribution box (106) includes a first air duct (108), a second air duct (110), and a third air duct (112). The first air duct (108) is fluidly connected to the driver's cab of the vehicle, the second air duct (110) is fluidly connected to the traction motor compartment of the vehicle, and the third air duct (112) is fluidly connected to the passenger compartment of the vehicle. The valve assembly (107) is used to distribute the air intake of the first air duct (108), the second air duct (110), and the third air duct (112).

2. The air duct assembly according to claim 1, characterized in that, It also includes a sealing device, which is disposed at at least one of the air inlet and the air outlet.

3. The air duct assembly according to claim 2, characterized in that, The sealing device includes: A first seal (114) is disposed at the air inlet to seal the gap between the air inlet and the vehicle skirt. A second sealing element (116) is disposed at the air outlet to seal the gap between the air outlet and the distribution box (106).

4. The air duct assembly according to claim 3, characterized in that, The first sealing element (114) includes an elastic washer (118), the elastic washer (118) has a deformation cavity (120) formed inside, and the outer wall of the elastic washer (118) has a first insertion interface (122) and a second insertion interface (124). The first insertion interface (122) is used to insert the bent section of the edge of the air inlet, and the second insertion interface (124) is used to insert the skirt of the vehicle.

5. The air duct assembly according to claim 3, characterized in that, The second seal (116) includes: The first sealing end (126) is flexibly connected to the air outlet; The second sealing end (128) is flexibly connected to the distribution box (106). A corrugated section (130) is connected between the first sealing end (126) and the second sealing end (128).

6. The air duct assembly according to any one of claims 1 to 5, characterized in that, The filter element includes a frame (132) on which a labyrinth rainwater separator (134) and a fresh air filter (136) are mounted, and at least one of a drain outlet and a sand outlet is provided at the bottom of the frame (132).

7. The air duct assembly according to claim 6, characterized in that, The frame (132) is tapered, wider at the top and narrower at the bottom, and the drain outlet and / or the sand outlet are located at the bottom of the frame (132).

8. The air duct assembly according to any one of claims 1 to 5, characterized in that, The filter element includes a housing (138) and a sand discharge fan. Several centrifuge tubes (140) are installed inside the housing (138), and the sand discharge port of the centrifuge tubes (140) is connected to the sand discharge fan through a sand discharge pipe.

9. An air conditioning system, characterized in that, Includes the air duct assembly as described in any one of claims 1 to 8.

10. A vehicle, characterized in that, Includes the air duct assembly as described in any one of claims 1 to 8; Or the air conditioning system as described in claim 9.

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