Glass fiber reinforced plastic fairing for motor train unit

Abstract

The utility model relates to the field of motor train unit flow guide covers, and discloses a glass fiber reinforced plastic flow guide cover for a motor train unit, which comprises an air conditioner cover, a resistance reducing mechanism is arranged at the rear end of the air conditioner cover, the resistance reducing mechanism comprises a plurality of fixing grooves formed in the outer wall of the rear end of the air conditioner cover, and connecting plates are arranged in the fixing grooves. And spoilers are fixedly connected to the outer walls of the rear ends of the connecting plates, a noise reduction mechanism is arranged in the air conditioner cover and comprises a plurality of bearing plates fixed to the edge of the inner top face of the air conditioner cover, and clamping columns are fixedly connected to the upper surfaces of the bearing plates. According to the air conditioner cover, the connecting plates penetrate through the fixing holes through the bolts to be fixed, then when a train runs at a high speed and airflow passes through the rear end of the air conditioner cover, the airflow is cut through the spoilers, and therefore the problem that the airflow forms vortex at the rear end of the air conditioner cover is avoided; therefore, the resistance and the power consumption when the train travels can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the field of fairings for multiple unit trains, in particular to a glass fiber reinforced plastic fairing for multiple unit trains. Background Technique

[0002] A multiple unit train, also known as a multiple unit train set, is a type of modern train. It consists of several powered vehicles and unpowered vehicles and is electrically driven. By connecting multiple carriages, the train runs more stably and meets the requirements of high-speed driving. Generally, the air conditioner outdoor unit of a multiple unit train is installed on the top of the train. When the train is running at high speed, the airflow hitting the air conditioner outdoor unit will increase the overall noise of the train to a certain extent, and may cause premature damage to the external connection of the air conditioner in the long term. Therefore, to address this problem, designers install a glass fiber reinforced plastic fairing around the air conditioner outdoor unit. By means of the fairing, the air resistance of the air conditioner outdoor unit during train travel is reduced, thereby reducing the noise and extending the service life of the air conditioner outdoor unit at the same time.

[0003] Most of the existing train air conditioner fairings are fixed to the top of the carriage by bolts. Therefore, when the train is running, since the bolts are directly exposed and most of them are multi-sided, the airflow may hit the bolts when the train is running, thereby increasing the noise during train travel. Moreover, when the train is running at high speed, when the airflow passes through the fairing, vortices will be formed at the rear end of the fairing. When vortices are formed at the rear ends of the air conditioner fairings of multiple trains, the train's traveling speed will be slowed down to a certain extent, and the power consumption generated during train travel will be increased to a certain extent. Therefore, there is an urgent need for technical improvement. Content of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and a glass fiber reinforced plastic fairing for multiple unit trains is proposed. Compared with the existing fairings, this fairing reduces the noise generated by the impact of external airflow bolts during train travel by changing the fixing method of the air conditioner cover to internal fixing, and fixes the panel to the clamping posts of the air conditioner cover through a rigid plate, making it more convenient to maintain and repair the internal air conditioner outdoor unit, and avoiding the time consumed by screwing multiple bolts.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A glass fiber reinforced plastic fairing for multiple unit trains, including an air conditioner cover. A drag reduction mechanism is arranged at the rear end of the air conditioner cover. The drag reduction mechanism includes a plurality of fixing grooves opened on the outer wall of the rear end of the air conditioner cover. Connecting plates are arranged inside the fixing grooves, and spoiler plates are fixedly connected to the outer walls of the rear ends of the connecting plates;

[0007] A noise reduction mechanism is arranged inside the air conditioner cover. The noise reduction mechanism includes a plurality of supporting plates fixed at the edge of the inner top surface of the air conditioner cover. The upper surfaces of the supporting plates are fixedly connected with clamping columns. Rigid plates are rigidly connected to the outer walls around the clamping columns. An installation groove is formed in the upper surface of the air conditioner cover. The noise reduction mechanism further includes a panel placed inside the installation groove. A plurality of diamond-shaped grooves are formed at the edge of the lower surface of the panel.

[0008] Through the above technical solution, this fairing shows significant advantages in improving the performance of the EMU, reducing energy consumption and noise, and enhancing structural stability.

[0009] Further, two fixing holes are formed in the inner bottom surface of the fixing groove. The connecting plate and the fixing groove are fixedly connected by bolts passing through the fixing holes.

[0010] Through the above technical solution, the spoiler can be better fixed from the inside, reducing a part of the noise generated during train operation.

[0011] Further, mounting plates are fixedly connected to the lower ends of the front inner wall and the rear inner wall of the air conditioner cover.

[0012] Through the above technical solution, by fixedly connecting mounting plates to the lower ends of the front inner wall and the rear inner wall of the air conditioner cover, the air conditioner cover can be better fixed from the inside, thus avoiding the problem of increased noise caused by too many external bolts.

[0013] Further, a sealing ring is arranged on the outer wall of the panel.

[0014] Through the above technical solution, by arranging a sealing ring on the outer wall of the panel, the sealing performance between the panel and the installation groove can be effectively improved.

[0015] Further, two exhaust grooves are formed in the upper surface of the panel. A supporting bracket is fixedly connected to the inner wall of the exhaust groove.

[0016] Through the above technical solution, by forming two exhaust grooves in the upper surface of the panel and fixedly connecting a supporting bracket to the inner wall of the exhaust groove, the air flow of the air conditioner outdoor unit can be better discharged, and the dust-proof net can be better fixed through the supporting bracket.

[0017] Further, arc-shaped blocks are fixedly connected to the upper surfaces of the clamping columns. Breaking grooves are formed at the lower ends of the front outer wall and the rear outer wall of the clamping columns.

[0018] Through the above technical solution, by fixedly connecting arc-shaped blocks to the upper surfaces of the clamping columns, the clamping columns can be more conveniently inserted into the diamond-shaped grooves. Then, by forming breaking grooves at the lower ends of the front outer wall and the rear outer wall of the clamping columns, the clamping columns can be more conveniently broken when the panel needs to be disassembled.

[0019] Further, the clamping post is clamped and cooperated with the panel through a rigid plate and a diamond-shaped groove;

[0020] Through the above technical solution, the clamping post is clamped and cooperated with the panel through a rigid plate and a diamond-shaped groove, so that the panel can be better fixed inside the installation groove.

[0021] The utility model has the following beneficial effects:

[0022] 1. A FRP fairing for EMUs proposed by the utility model, compared with the existing fairing, the fairing reduces the noise generated by the impact of external air flow bolts during train travel by changing the fixing method of the air-conditioning cover to internal fixing through the provided noise reduction mechanism, and fixes the panel through the rigid plate and the clamping post of the air-conditioning cover, so that it is more convenient to maintain and repair the internal air-conditioning unit, and avoids the time consumed by screwing multiple bolts.

[0023] 2. A FRP fairing for EMUs proposed by the utility model, compared with the existing fairing, the fairing reduces the resistance and power consumption during train travel by effectively avoiding the problem of air flow eddy formation at the rear end of the air-conditioning cover through the provided drag reduction mechanism. When the train is running at high speed, the air flow is cut by multiple spoiler plates when passing through the rear end of the air-conditioning cover after the connecting plate is fixed by bolts passing through the fixing holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 An isometric view of a FRP fairing for EMUs proposed by the utility model;

[0025] Figure 2 A structural schematic diagram of a FRP fairing for EMUs proposed by the utility model;

[0026] Figure 3 A bottom view of a FRP fairing for EMUs proposed by the utility model;

[0027] Figure 4 A structural schematic diagram of the panel in a FRP fairing for EMUs proposed by the utility model;

[0028] Figure 5 A structural schematic diagram of the spoiler plate in a FRP fairing for EMUs proposed by the utility model;

[0029] Figure 6 is Figure 2 An enlarged view of part A in

[0030] Legend:

[0031] 1. Air-conditioning cover;

[0032] 2. Noise reduction mechanism; 201. Panel; 202. Support plate; 203. Sealing ring; 204. Rhombic groove; 205. Support bracket; 206. Exhaust groove; 207. Clamping post; 208. Arc-shaped block; 209. Rigid plate; 210. Fracture groove;

[0033] 3. Drag reduction mechanism; 301. Fixed groove; 302. Fixed hole; 303. Connecting plate; 304. Flow spoiler;

[0034] 4. Installation groove; 5. Installation plate. Specific implementation manner

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a 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 those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0036] Refer to Figures 1-6 , an embodiment provided by the present invention:

[0037] A fiberglass fairing for a bullet train includes an air-conditioning cover 1. A drag reduction mechanism 3 is provided at the rear end of the air-conditioning cover 1. The drag reduction mechanism 3 includes a plurality of fixed grooves 301 opened on the outer wall of the rear end of the air-conditioning cover 1. Connecting plates 303 are arranged inside the fixed grooves 301, and flow spoilers 304 are fixedly connected to the outer walls of the rear ends of the connecting plates 303;

[0038] A noise reduction mechanism 2 is arranged inside the air-conditioning cover 1. The noise reduction mechanism 2 includes a plurality of support plates 202 fixed at the edges of the inner top surface of the air-conditioning cover 1. Clamping posts 207 are fixedly connected to the upper surfaces of the support plates 202. Rigid plates 209 are rigidly connected to the outer walls around the clamping posts 207. An installation groove 4 is opened on the upper surface of the air-conditioning cover 1. The noise reduction mechanism 2 further includes a panel 201 placed inside the installation groove 4. A plurality of rhombic grooves 204 are opened at the edges of the lower surface of the panel 201;

[0039] This fairing shows significant advantages in improving the performance of bullet trains, reducing energy consumption and noise, and enhancing structural stability.

[0040] Two fixing holes 302 are formed in the inner bottom surface of the fixing groove 301. The connecting plate 303 and the fixing groove 301 are fixedly connected by bolts passing through the fixing holes 302, so that the spoiler 304 can be better fixed from the inside, reducing part of the noise generated during train operation. Mounting plates 5 are fixedly connected to the lower ends of the front inner wall and the rear inner wall of the air-conditioning cover 1. By fixedly connecting the mounting plates 5 to the lower ends of the front inner wall and the rear inner wall of the air-conditioning cover 1, the air-conditioning cover 1 can be better fixed from the inside, thus avoiding the problem of increased noise caused by excessive external bolts.

[0041] A sealing ring 203 is arranged on the outer wall of the panel 201. By arranging the sealing ring 203 on the outer wall of the panel 201, the sealing performance between the panel 201 and the installation groove 4 can be effectively improved. Two exhaust grooves 206 are formed in the upper surface of the panel 201. A support bracket 205 is fixedly connected to the inner wall of the exhaust groove 206. By forming the two exhaust grooves 206 in the upper surface of the panel 201 and fixedly connecting the support bracket 205 to the inner wall of the exhaust groove 206, the air flow of the air conditioner outdoor unit can be better discharged, and the dust-proof net can be better fixed through the support bracket 205.

[0042] Arc-shaped blocks 208 are fixedly connected to the upper surfaces of the clamping posts 207. Breaking grooves 210 are formed in the lower ends of the front outer wall and the rear outer wall of the clamping posts 207. By fixedly connecting the arc-shaped blocks 208 to the upper surfaces of the clamping posts 207, the clamping posts 207 can be more conveniently inserted into the inside of the diamond-shaped grooves 204. Then, by forming the breaking grooves 210 in the lower ends of the front outer wall and the rear outer wall of the clamping posts 207, the clamping posts 207 can be more conveniently broken when the panel 201 needs to be disassembled. The clamping posts 207 are clamped and matched with the panel 201 through the rigid plates 209 and the diamond-shaped grooves 204. By the clamping posts 207 being clamped and matched with the panel 201 through the rigid plates 209 and the diamond-shaped grooves 204, the panel 201 can be better fixed inside the installation groove 4.

[0043] Working principle: When installing the air conditioner cover 1, after placing the air conditioner cover 1 in the installation area, the staff fixes the air conditioner cover 1 by inserting bolts through the mounting plate 5 inside the air conditioner cover 1. Then, place the connecting plate 303 into the fixing groove 301, and fix the connecting plate 303 inside the fixing groove 301 by passing bolts through the fixing holes 302. Then, align the diamond-shaped groove 204 of the panel 201 with the arc-shaped block 208 and insert it. When inserting, the rigid plate 209 is squeezed inside the diamond-shaped groove 204, so that the rigid plate 209 contracts towards the end close to the clamping post 207. When the rigid plate 209 enters the diamond-shaped groove 204, the rigid plate 209 extends through its rigidity and fits against the inner wall of the diamond-shaped groove 204, thus fixing the panel 201 inside the installation groove 4. Then, improve the sealing performance between the panel 201 and the installation groove 4 through the sealing ring 203. When it is necessary to repair the air conditioner outdoor unit inside, the staff can manually tilt and move the panel 201, so that the clamping post 207 is broken through the breaking groove 210, thus disassembling the panel 201 and performing maintenance and repair on the air conditioner outdoor unit inside. When the train is moving at high speed daily, the air flow is cut by the spoiler 304, thus reducing the resistance during movement.

[0044] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A FRP fairing for multiple unit trains, comprising an air-conditioning cover (1), characterized in that: A drag reduction mechanism (3) is provided at the rear end of the air conditioner cover (1). The drag reduction mechanism (3) includes a plurality of fixing grooves (301) formed on the outer wall of the rear end of the air conditioner cover (1). A connecting plate (303) is provided inside each of the fixing grooves (301), and a spoiler (304) is fixedly connected to the outer wall of the rear end of each connecting plate (303). A noise reduction mechanism (2) is provided inside the air conditioner cover (1). The noise reduction mechanism (2) includes a plurality of supporting plates (202) fixed at the edge of the inner top surface of the air conditioner cover (1). A clamping post (207) is fixedly connected to the upper surface of each supporting plate (202). A rigid plate (209) is rigidly connected to the outer wall around each clamping post (207). An installation groove (4) is formed on the upper surface of the air conditioner cover (1). The noise reduction mechanism (2) further includes a panel (201) placed inside the installation groove (4). A plurality of diamond-shaped grooves (204) are formed at the edge of the lower surface of the panel (201).

2. The FRP fairing for EMU according to claim 1, characterized in that: Two fixing holes (302) are formed on the inner bottom surface of each of the fixing grooves (301). The connecting plate (303) and the fixing groove (301) are fixedly connected by bolts passing through the fixing holes (302).

3. The FRP fairing for EMU according to claim 1, characterized in that: Mounting plates (5) are fixedly connected to the lower ends of the front inner wall and the rear inner wall of the air conditioner cover (1).

4. A fiberglass fairing for a multiple unit train according to claim 1, characterized in that: A sealing ring (203) is provided on the outer wall of the panel (201).

5. A FRP fairing for EMU according to claim 1, wherein: Two exhaust grooves (206) are formed on the upper surface of the panel (201), and a supporting bracket (205) is fixedly connected to the inner wall of each exhaust groove (206).

6. The FRP fairing for EMU according to claim 1, wherein: An arc-shaped block (208) is fixedly connected to the upper surface of each clamping post (207). Breaking grooves (210) are formed at the lower ends of the front outer wall and the rear outer wall of each clamping post (207).

7. The FRP fairing for EMU according to claim 1, characterized in that: The clamping post (207) is clamped and matched with the panel (201) through the rigid plate (209) and the diamond-shaped groove (204).

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