Lightweight air supply duct for railway vehicle

Abstract

The invention discloses a railway vehicle light-weight air supply air duct, and belongs to the technical field of railway vehicle air ducts, the railway vehicle light-weight air supply air duct comprises an air duct shell, an air inlet flow dividing structure and an air volume adjusting assembly, the air inlet flow dividing structure and the air volume adjusting assembly are both arranged in the air duct shell, and an air inlet is formed in the top of the air inlet flow dividing structure; the air inlet is connected with an air supply outlet of the air conditioning unit, and the air outlet of the air inlet flow dividing structure is connected with the air volume adjusting assembly. By arranging the air inlet flow dividing structure and the air volume adjusting assembly, air flow can be automatically distributed when passing through, it is guaranteed that flow on the two sides of a compartment is uniform, the riding comfort of passengers is improved, and meanwhile the total weight of an air duct can be reduced; therefore, the problems that due to the fact that a traditional railway vehicle air duct cannot distribute the air flow, the passenger taking feeling is poor, and the temperature distribution in a compartment is not uniform due to the fact that the flow in the compartment is not uniform are effectively solved.

Description

Technical Field

[0001] The invention belongs to the technical field of rail vehicle air ducts, and specifically refers to a lightweight air supply duct for rail vehicles. Background Art

[0002] In the ventilation system of rail vehicles, the air duct needs to distribute the air volume so that the wind speed and flow rate in the car can be evenly distributed. However, traditional air ducts usually use more chambers and guide structures for air intake distribution, and integrate electrical control structures for wind speed and flow rate in the air duct, which not only increases the cost of the air duct, but also increases the weight of the air duct.

[0003] Therefore, in order to automatically distribute the wind speed flow in the air duct, avoid the poor passenger riding experience and uneven temperature distribution in the car caused by uneven flow in the car, and reduce the overall weight of the air duct, a lightweight air supply duct for rail vehicles is proposed. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a lightweight air supply duct for rail vehicles. By setting an air inlet diversion structure and an air volume adjustment component, the air volume on both sides of the car can be automatically distributed while supplying air, so that different areas on both sides of the car can achieve uniform air supply volume, which effectively solves the problem that the current rail passenger car air duct integrates an electrical control structure of wind speed and flow in the air duct, resulting in high duct cost and weight.

[0005] The technical solution adopted by the present invention is as follows: The present invention proposes a lightweight air supply duct for a rail vehicle, comprising an air duct shell, an air inlet diversion structure and an air volume adjustment component, wherein the air inlet diversion structure and the air volume adjustment component are both arranged inside the air duct shell, an air inlet is opened on the top of the air inlet diversion structure, the air inlet is connected to the air supply port of the air-conditioning unit, the air outlet of the air inlet diversion structure is connected to the air volume adjustment component, the air volume adjustment component is used to redistribute the airflow after the air inlet diversion structure is diverted, a first air duct and a second air duct are arranged in the air duct shell, and the first air duct and the second air duct are respectively connected to the air outlet of the air volume adjustment component.

[0006] Furthermore, the air volume regulating assembly includes a volume regulating box, a flow regulating block and a threaded rod, the volume regulating box is fixedly installed in the air duct housing, the threaded rod is rotatably connected to the volume regulating box, the flow regulating block is arranged inside the volume regulating box, a slider is fixedly connected to the flow regulating block, a through slide groove is opened on the volume regulating box, the slider is slidably connected in the slide groove, and the slider is threadedly connected to the threaded rod.

[0007] Furthermore, the air volume regulating assembly also includes wind speed sensing rollers, and the wind speed sensing rollers are provided in two groups and are rotatably connected in the first air duct and the second air duct respectively.

[0008] Furthermore, one end of the wind speed sensing roller is fixedly connected to the second winding wheel, both ends of the threaded rod are fixedly connected to the first winding wheel, a wire drawing tube is installed in the air duct shell, a wire drawing wire is arranged in the wire drawing tube, both ends of the wire drawing wire are respectively wound around the first winding wheel and the second winding wheel, and a reset torsion spring is installed on the shaft of the wind speed sensing roller.

[0009] Furthermore, the air inlet diversion structure includes a diversion box and a diversion plate, the diversion box is fixedly installed in the air duct housing, the diversion plate is fixedly connected to the inside of the diversion box, the top of the diversion box is provided with an air inlet, and both sides of the diversion box are provided with air outlets.

[0010] Furthermore, the cross-section of the diverter plate is a herringbone shape, and the tip of the diverter plate faces the air inlet.

[0011] Furthermore, an isolation plate and a U-shaped guide plate are fixedly connected in the air duct shell, the end of the U-shaped guide plate is arc-shaped, the two sides of the U-shaped guide plate are straight plates, and the isolation plate is parallel to the two side edges of the U-shaped guide plate and fixed in the middle of the U-shaped guide plate.

[0012] Furthermore, a diverter baffle is fixedly connected inside the air duct shell, the cross-section of the diverter baffle is a herringbone structure, the tip of the diverter baffle is fixedly connected to the middle of the regulating box, and the legs of the regulating box are fixedly connected to the first air duct and the second air duct respectively.

[0013] Furthermore, air supply grilles are fixedly connected to the first air duct and the second air duct.

[0014] The beneficial effects achieved by the present invention using the above structure are as follows:

[0015] (1) In order to solve the problem that the conventional rail vehicle air duct cannot automatically distribute the air flow when supplying air, resulting in uneven air flow and uneven temperature distribution in the carriage, and poor passenger riding comfort, the present invention can automatically distribute the air flow when it passes through by providing an air inlet diversion structure and an air volume adjustment component, thereby ensuring uniform air flow on both sides of the carriage, thereby effectively improving passenger riding comfort;

[0016] (2) The air volume adjustment component is provided with two sets of symmetrical wind speed sensing rollers for detecting the wind speed in the first air duct and the second air duct respectively, and converting the wind speed into the rotational force of the wind speed sensing rollers. When there is a difference in the wind speed flow rate of the air ducts on both sides, the wind speed sensing rollers will be subjected to different rotational forces, and the flow difference in the two air ducts will be used to drive the movement of the flow regulating block, so that the flow rate is offset to the air duct with lower flow rate, thereby realizing automatic adjustment of the wind speed;

[0017] (3) In addition, the air inlet diversion structure guides the air flow into the air duct by setting a U-shaped guide plate, thereby extending the length of the air flow entering the air duct, making the air flow into the air duct stable and reducing wind noise;

[0018] (4) In addition, by providing an air volume adjustment component, the electrical control structure is simplified, which can reduce the overall weight and cost of the air duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the internal structure of a lightweight air supply duct for a rail vehicle proposed by the present invention;

[0020] Figure 2 A schematic diagram of the three-dimensional structure of a lightweight air supply duct for a rail vehicle proposed by the present invention;

[0021] Figure 3 A schematic diagram of the partial structure of a lightweight air supply duct for a rail vehicle proposed by the present invention;

[0022] Figure 4 This is a structural schematic diagram of an air inlet splitter structure of a lightweight air supply duct for a rail vehicle proposed by the present invention;

[0023] Figure 5 A schematic diagram of the partial structure of an air volume regulating assembly for a lightweight air supply duct of a rail vehicle proposed by the present invention;

[0024] Figure 6 This is a structural schematic diagram of an air volume regulating assembly for a lightweight air supply duct of a rail vehicle proposed by the present invention;

[0025] Figure 7 Schematic diagram of the local structure of the air volume adjustment component Figure 1 ;

[0026] Figure 8 Schematic diagram of the local structure of the air volume adjustment component Figure 2 ;

[0027] Fig. 9 It is a schematic diagram of the transmission structure of the air volume adjustment component.

[0028] Among them, 1. air duct shell; 2. air inlet diversion structure; 3. air volume adjustment component; 4. first air duct; 5. second air duct; 6. air supply grille; 7. rectification structure; 201. diversion box; 202. diversion plate; 203. air inlet; 204. air outlet; 205. isolation plate; 206. U-shaped guide plate; 21. first air flow channel; 22. second air flow channel; 301. volume adjustment box; 302. flow adjustment block; 303. threaded rod; 304. slider; 305. first winding wheel; 306. wire drawing tube; 307. wire drawing line; 308. wind speed sensing roller; 309. second winding wheel; 310. reset torsion spring; 32. first air outlet; 33. second air outlet; 34. diversion baffle; 71. dividing block; 72. first flow channel; 73. second flow channel.

[0029] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0032] like Figure 1-Figure 9 As shown, the present invention proposes a lightweight air supply duct for a rail vehicle, comprising an air duct shell 1, an air inlet diversion structure 2 and an air volume regulating component 3, wherein the air inlet diversion structure 2 and the air volume regulating component 3 are both arranged inside the air duct shell 1, an air inlet 203 is opened on the top of the air inlet diversion structure 2, the air inlet 203 is connected to the air supply port of the air-conditioning unit, the air outlet of the air inlet diversion structure 2 is connected to the air volume regulating component 3, the air volume regulating component 3 is used for redistributing the airflow diverted by the air inlet diversion structure 2, a first air duct 4 and a second air duct 5 are arranged in the air duct shell 1, and the first air duct 4 and the second air duct 5 are respectively connected to the air outlet of the air volume regulating component 3.

[0033] Among them, the air volume adjustment component 3 includes a volume adjustment box 301, a flow adjustment block 302 and a threaded rod 303. The volume adjustment box 301 is fixedly installed in the air duct housing 1, and the threaded rod 303 is rotatably connected to the volume adjustment box 301. The flow adjustment block 302 is arranged inside the volume adjustment box 301. The cross-section of the flow adjustment block 302 is an isosceles triangle. The volume adjustment box 301 is a through and hollow square tube. The air inlet end of the volume adjustment box 301 is fixedly connected to the rectification structure 7 and the volume adjustment box 301 is arranged in the middle position of the rectification structure 7. The width of the volume adjustment box 301 is smaller than the width of the rectification structure 7. A part of the airflow passing through the first flow channel 72 directly enters the first air duct 4, and the other part enters the volume adjustment box 30 1, a part of the airflow passing through the second flow channel 73 directly enters the second air duct 5, and the other part enters the regulating box 301. The airflow entering the regulating box 301 from the first flow channel 72 and the second flow channel 73 is divided into two parts by the flow regulating block 302, one part passes through the first air outlet 32 ​​and then merges into the first air duct 4, and the other part passes through the second air outlet 33 and merges into the second air duct 5, thereby realizing the adjustment of the airflow in the first air duct 4 and the second air duct 5. The flow regulating block 302 is fixedly connected with a slider 304, and a through slide groove is provided on the regulating box 301. The slider 304 is slidably connected in the slide groove, and the slider 304 is threadedly connected with the threaded rod 303 When the threaded rod 303 rotates, it drives the slider 304 to move, thereby driving the movement of the flow regulating block 302, so that the position of the flow regulating block 302 in the regulating box 301 changes, and then the flow from the regulating box 301 to the first air outlet 32 ​​and the second air outlet 33 is adjusted; the air volume regulating component 3 also includes a wind speed sensing roller 308, and the wind speed sensing roller 308 has the same structure as the mechanical wind speed sensor. A plurality of wind cups are fixedly connected to the outer circumference of the shaft. When the wind is on the wind speed sensing roller 308, the wind cup is used to drive the wind speed sensing roller 308 to generate a rotational force. The wind speed sensing roller 308 is provided with two groups and is rotatably connected to the first air duct 4 and the second air duct 5 respectively; the wind speed sensing roller 308 is provided with two groups and is rotatably connected to the first air duct 4 and the second air duct 5 respectively; One end of the roller 308 is fixedly connected to the second winding wheel 309, and both ends of the threaded rod 303 are fixedly connected to the first winding wheel 305. A wire drawing tube 306 is installed in the air duct shell 1, and a wire drawing wire 307 is arranged in the wire drawing tube 306. Both ends of the wire drawing wire 307 are respectively wound around the first winding wheel 305 and the second winding wheel 309. A reset torsion spring 310 is installed on the axis of the wind speed sensing roller 308. The reset torsion spring 310 is fixed on the shells of the first air duct 4 and the second air duct 5, driving the wind speed sensing roller 308 to reset. The wind cups of the two wind speed sensing rollers 308 are set in the same direction, and the two wind speed sensing rollers 308 are driven to generate rotational force in the same direction when supplying air.

[0034] In addition, the air inlet diversion structure 2 includes a diversion box 201 and a diversion plate 202. The diversion box 201 is fixedly installed in the air duct housing 1, and the diversion plate 202 is fixedly connected to the inside of the diversion box 201. The top of the diversion box 201 is provided with an air inlet 203, and the two sides of the diversion box 201 are provided with air outlets 204; the cross-section of the diversion plate 202 is a herringbone shape, and the tip of the diversion plate 202 faces the air inlet 203. The air outlet 204 of the air conditioning unit is connected to the air inlet 203. The air conditioning air enters the diversion box 201 from the air inlet 203, and the air guide passing through the diversion plate 202 is divided into two parts, one part from the first air duct 2 The air flow of the air duct 1 is guided by the U-shaped guide plate 206 and enters the first flow channel 72, and the other part of the air flow is guided by the U-shaped guide plate 206 from the second air flow channel 22 and enters the second flow channel 73. The U-shaped guide plate 206 extends the air flow distance, so that the wind speed blown into the air duct by the air conditioner unit tends to be stable, reduces turbulence, and thus reduces wind noise; the air duct housing 1 is fixedly connected with the isolation plate 205 and the U-shaped guide plate 206, the end of the U-shaped guide plate 206 is arc-shaped, the two sides of the U-shaped guide plate 206 are straight plates, and the isolation plate 205 is parallel to the two sides of the U-shaped guide plate 206 and is fixed to the middle of the U-shaped guide plate 206.

[0035] In addition, a diverter baffle 34 is fixedly connected inside the air duct shell 1. The cross-section of the diverter baffle 34 is a herringbone structure. The tip of the diverter baffle 34 is fixedly connected to the middle of the regulating box 301. The legs of the regulating box 301 are respectively fixedly connected to the first air duct 4 and the second air duct 5. The first air duct 4 and the second air duct 5 are both fixedly connected with an air supply grille 6, and the airflow enters the vehicle from the air supply grille 6.

[0036] In addition, a rectification structure 7 is fixedly connected inside the air duct shell 1, and the rectification structure 7 includes a dividing block 71, a first flow channel 72 and a second flow channel 73. The dividing block 71 is fixedly connected to the middle part of the rectification structure 7. The rectification structure 7 is a hollow square tube structure. The air inlet end of the first flow channel 72 is connected to the first air flow channel 21, and the air outlet end of the first flow channel 72 is connected to the air volume adjustment component 3 and the first air duct 4. The air inlet end of the second flow channel 73 is connected to the second air flow channel 22, and the air outlet end of the second flow channel 73 is connected to the air volume adjustment component 3 and the second air duct 5.

[0037] Specific use and working principle: When supplying air to the rail vehicle, the air conditioning unit introduces fresh air into the air supply duct from the air inlet 203. The airflow is first divided into two parts by the diverter plate 202, and flows out from the first air flow duct 21 and the second air flow duct 22 respectively. When the airflow passes through the U-shaped guide plate 206, the wind speed flow becomes relatively stable due to the extension of the U-shaped guide plate 206. A part of the airflow in the first air flow duct 21 passes through the first flow channel 72 and directly enters the first air duct 4. A part of the airflow in the second air flow duct 22 passes through the second flow channel 73 and directly enters the second air duct 5. The remaining airflow enters the air volume regulating component 3 for flow distribution. Due to the different positions of the flow regulating block 302, the air flow rates entering the first air duct 4 and the second air duct 5 from the air volume regulating component 3 are different.

[0038] The total air flow in the first air duct 4 and the second air duct 5 respectively drives the two wind speed sensing rollers 308 to rotate. When there is a difference in the wind speed flow on both sides, the two wind speed sensing rollers 308 are subjected to different rotational forces, thereby overcoming the elastic force of the reset torsion spring 310 to drive the second winding wheel 309 to rotate. The second winding wheel 309 pulls the drawing wire 307 to drive the first winding wheel 305 to rotate, thereby driving the slider 304 to move, so that the flow regulating block 302 moves toward the side with larger wind speed flow, so that the wind speed on the side with larger wind speed flow is reduced, thereby making the total flow of the first air duct 4 and the second air duct 5 tend to be the same. When the airflow passes through the air supply grille 6 and blows into the rail vehicle, the flow on both sides tends to be the same, thereby improving the comfort in the vehicle and the riding experience of the passengers.

[0039] The above is the overall workflow of the present invention.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0042] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A lightweight air supply duct for a rail vehicle, characterized in that: The invention comprises an air duct housing (1), an air inlet diversion structure (2) and an air volume regulating component (3), wherein the air inlet diversion structure (2) and the air volume regulating component (3) are both arranged inside the air duct housing (1), an air inlet (203) is provided at the top of the air inlet diversion structure (2), the air inlet (203) is connected to the air supply port of the air conditioning unit, the air outlet of the air inlet diversion structure (2) is connected to the air volume regulating component (3), the air volume regulating component (3) is used for redistributing the air flow diverted by the air inlet diversion structure (2), and a first air duct (4) and a second air duct (5) are provided inside the air duct housing (1), the first air duct (4) and the second air duct (5) are respectively connected to the air outlet of the air volume regulating component (3).

2. A lightweight air supply duct for a rail vehicle according to claim 1, characterized in that: The air volume adjustment component (3) comprises an air volume adjustment box (301), a flow adjustment block (302) and a threaded rod (303); the air volume adjustment box (301) is fixedly installed in the air duct housing (1); the threaded rod (303) is rotatably connected to the air volume adjustment box (301); the flow adjustment block (302) is arranged inside the air volume adjustment box (301); a slider (304) is fixedly connected to the flow adjustment block (302); a sliding groove extending through the air volume adjustment box (301) is provided; the slider (304) is slidably connected in the sliding groove; and the slider (304) is threadedly connected to the threaded rod (303).

3. A lightweight air supply duct for a rail vehicle according to claim 2, characterized in that: The air volume adjustment component (3) further comprises wind speed sensing rollers (308), wherein two groups of wind speed sensing rollers (308) are provided and are rotatably connected in the first air duct (4) and the second air duct (5) respectively.

4. A lightweight air supply duct for a rail vehicle according to claim 3, characterized in that: One end of the wind speed sensing roller (308) is fixedly connected to the second winding wheel (309), and both ends of the threaded rod (303) are fixedly connected to the first winding wheel (305). A wire drawing tube (306) is installed in the air duct shell (1), and a wire drawing wire (307) is provided in the wire drawing tube (306). Both ends of the wire drawing wire (307) are respectively wound around the first winding wheel (305) and the second winding wheel (309), and a reset torsion spring (310) is installed on the shaft of the wind speed sensing roller (308).

5. A lightweight air supply duct for a rail vehicle according to claim 4, characterized in that: The air inlet diversion structure (2) comprises a diversion box (201) and a diversion plate (202); the diversion box (201) is fixedly installed in the air duct housing (1); the diversion plate (202) is fixedly connected to the inside of the diversion box (201); an air inlet (203) is provided on the top of the diversion box (201); and air outlets (204) are provided on both sides of the diversion box (201).

6. A lightweight air supply duct for a rail vehicle according to claim 5, characterized in that: The cross section of the splitter plate (202) is in a herringbone shape, and the tip of the splitter plate (202) faces the air inlet (203).

7. A lightweight air supply duct for a rail vehicle according to claim 6, characterized in that: An isolation plate (205) and a U-shaped guide plate (206) are fixedly connected inside the air duct housing (1); the end of the U-shaped guide plate (206) is arc-shaped; two sides of the U-shaped guide plate (206) are straight plates; the isolation plate (205) is parallel to two side edges of the U-shaped guide plate (206) and is fixed in the middle of the U-shaped guide plate (206).

8. The lightweight air supply duct for a rail vehicle according to claim 7, characterized in that: A flow dividing baffle (34) is fixedly connected inside the air duct housing (1); the cross section of the flow dividing baffle (34) is a herringbone structure; the tip of the flow dividing baffle (34) is fixedly connected to the middle of the volume regulating box (301); and the legs of the volume regulating box (301) are respectively fixedly connected to the first air duct (4) and the second air duct (5).

9. A lightweight air supply duct for a rail vehicle according to claim 8, characterized in that: Air supply grilles (6) are fixedly connected inside the first air duct (4) and the second air duct (5).

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