Aluminum alloy skin structure of vehicle head

By adopting a concave design and reinforced fasteners in the urban rail vehicle skin structure, the problem of uneven outer surface after welding was solved, achieving a skin structure with low wind resistance and high strength, thus improving the operating efficiency and service life of the urban rail vehicle.

CN223574410UActive Publication Date: 2025-11-21CHANGCHUN TIANRUI MECHANICAL
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Patent Information

Application Number
CN202423280199.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-11-21
Estimated Expiration
2034-12-30

AI Technical Summary

Technical Problem

When the existing urban rail vehicle skin structure is welded to the frame, it is prone to unevenness with protrusions or depressions, resulting in poor surface consistency, affecting quality and service life, and increasing wind resistance and energy consumption.

Method used

The rear and front skins are welded together to form a single structure, with concave structures and reinforcing fasteners at the joints to ensure that the outer surfaces are on the same streamlined plane. A rounded transition is used to improve flatness and connection strength.

Benefits of technology

Reduce train wind resistance, reduce energy consumption, improve operating efficiency and range, extend skin life, and reduce maintenance costs and operational risks.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a vehicle head aluminum alloy skin structure which comprises a vehicle head skin and a vehicle tail skin, the vehicle tail skin and the vehicle head skin are connected in a welded mode to form an integrated structure, the vehicle tail skin comprises a tail side upper skin and a vehicle tail side window skin, and the vehicle tail side window skin and the tail side upper skin are connected with each other. The joint of the tail side window skin and the tail side upper skin is of an inward concave structure, and the inward concave depth is equal to the thickness of the tail side upper skin, so that the outer surfaces of the tail side upper skin and the tail side window skin are located on the same streamline plane after the tail side upper skin and the tail side window skin are connected. The head aluminum alloy skin structure is suitable for urban rail vehicles, after the head aluminum alloy skin structure is applied, the connecting position and the outer surface of the tail side upper skin located at the tail position and the tail side window skin located at the tail position are located on the same streamline plane, and therefore wind resistance in the train running process can be greatly reduced, the overall energy consumption of a train is reduced, and the service life of the train is prolonged. And the running efficiency and the endurance mileage of the train are improved, and the traffic development trend of energy conservation and emission reduction is met.
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Description

TECHNICAL FIELD

[0001] The utility model relates to city rail car skin structure technical field, especially relate to a car head aluminum alloy skin structure. BACKGROUND

[0002] The city rail car is an important component of the city public traffic system, and refers to the public traffic tool running along the specific rail in the city.

[0003] The skin structure of the city rail car is suitable for the city rail car, and is coated on the skin structure outside the city rail car. Since the skin structure is produced in multiple parts during production, the skin structure is welded with the city rail car frame after production is completed. However, the existing skin structure is very easy to have uneven conditions such as protrusions or depressions at each connection position of the skin structure when welded to the city rail car frame structure, which makes the consistency of the outer surface of the entire skin structure poor, thereby causing the quality and service life of the skin structure to decrease, and also increasing the wind resistance of the city rail car, which increases the energy consumption of the city rail car. SUMMARY

[0004] The utility model aims at overcoming the defects in the prior art that the skin structure is very easy to have uneven conditions such as protrusions or depressions at each connection position of the skin structure when welded to the city rail car frame structure, which makes the consistency of the outer surface of the entire skin structure poor, thereby causing the quality and service life of the skin structure to decrease, and also increasing the wind resistance of the city rail car, which increases the energy consumption of the city rail car, and provides a car head aluminum alloy skin structure. After application of the car head aluminum alloy skin structure, the outer surface of the entire skin structure is on the same streamline plane, which can greatly reduce the wind resistance of the train during running, reduce the overall energy consumption of the train, improve the running efficiency and cruising range of the train, and meet the traffic development trend of energy saving and emission reduction.

[0005] To achieve the above-mentioned purpose, the utility model adopts the technical scheme that:

[0006] The utility model discloses a kind of head aluminum alloy skin structures, including car head skin and car tail skin, wherein, the car tail skin with the car head skin is connected by welding, forms integrated structure, the car tail skin includes tail side upper skin and car tail side window skin, the car tail side window skin with the tail side upper skin is connected with each other, the connecting place of the car tail side window skin with the tail side upper skin adopts structure that is concave inward, and the depth of concave inward is the thickness of the tail side upper skin, so that the outer surface after the tail side upper skin and car tail side window skin connect is on same streamline plane, such structure setting makes that the car head aluminum alloy skin structure after application, the tail side upper skin and car tail side window skin connecting position in its car tail position, outer surface is on same streamline plane, so wind resistance in train running process can be greatly reduced, energy consumption is reduced, while the service life of skin can be extended, and maintenance cost and operation risk of train are reduced.

[0007] As preferred, the edge of the concave structure at the concave position of the car tail side window skin adopts circular arc transition, which can further reduce the wind resistance of the connecting position of the tail side upper skin and the car tail side window skin.

[0008] As preferred, the inner side structure of the tail side upper skin is also provided with a reinforced fastener, the reinforced fastener adopts a U-shaped structure, and the concave portion of the car tail side window skin is inserted into the inner side of the reinforced fastener, which can greatly improve the connection strength of the connecting position of the tail side upper skin and the car tail side window skin, thereby ensuring the strength of the entire skin structure and improving the service life of the skin.

[0009] As preferred, the length of the reinforced fastener is the same as the length of the concave portion of the car tail side window skin, so that the concave portion of the car tail side window skin is completely covered in the reinforced fastener, thereby achieving the effect of further improving the strength of the connecting position of the tail side upper skin and the car tail side window skin.

[0010] As preferred, the side surface of the car head skin is provided with a car door skin and a car tail side skin, wherein the car door skin and the car tail side skin are connected, and the connecting position of the car door skin and the car tail side skin adopts a structure that is concave inward, and the depth of concave inward is the thickness of the car tail side skin, so that the outer surface after the car door skin and the car tail side skin connect is on same streamline plane.

[0011] As preferred, the top of the car head skin is provided with a car head top skin, and the side surface is provided with a car head side skin, wherein the car head top skin and the car head side skin are connected, and the connecting position of the car head side skin and the car head top skin adopts a structure that is concave inward, and the depth of concave inward is the thickness of the car head top skin, so that the outer surface after the car head side skin and the car head top skin connect is on same streamline plane.

[0012] Preferably, the front of the vehicle front skin is provided with a front auxiliary window skin and a front main window skin, wherein the front auxiliary window skin and the front main window skin are connected, and the connection between the front main window skin and the front auxiliary window skin adopts an inwardly concave structure, and the depth of the concavity is the thickness of the front auxiliary window skin, so that the outer surfaces of the front auxiliary window skin and the front main window skin are on the same streamlined plane after they are connected.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] After the application of this aluminum alloy skin structure at the front of the train, the outer surface of the upper skin at the rear and the side window skin at the rear of the train are on the same streamlined plane. Therefore, it can greatly reduce wind resistance during train operation, reduce the overall energy consumption of the train, improve the operating efficiency and range of the train, which is in line with the trend of energy conservation and emission reduction in transportation development. At the same time, it can extend the service life of the skin and reduce the maintenance cost and operational risk of the train.

[0015] The aluminum alloy skin structure of the front of the vehicle uses rounded transitions on the outer edges at the connection points of each part, which makes the outer surface of the entire aluminum alloy skin structure smoother. Reinforced fasteners are provided on the inner side of the connection points, which can wrap the edges of the skin, making the connection strength of the aluminum alloy skin structure at each part higher, thereby improving the strength of the entire skin structure. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a side view of the rear skin of the vehicle in this utility model;

[0018] Figure 3 For the present utility model Figure 2 Schematic diagram of the cross-sectional structure of the middle AA section;

[0019] Figure 4 For the present utility model Figure 2 Schematic diagram of the cross-sectional structure of the middle BB section;

[0020] Figure 5 For the present utility model Figure 1 Schematic diagram of the cross-sectional structure of the middle CC section;

[0021] Figure 6 For the present utility model Figure 1 Schematic diagram of the cross-sectional structure of DD.

[0022] Fig. 1 is a front skin; 2 is a rear skin; 3 is a rear side upper skin; 4 is a front top skin; 5 is a front auxiliary window skin; 6 is a front main window skin; 7 is a door skin; 8 is a rear side skin; 9 is a rear side window skin; 10 is a reinforcing fastener; 11 is a front side skin. DETAILED DESCRIPTION

[0023] The specific implementation of the car head aluminum alloy skin structure is further described below in combination with the accompanying drawings. Figures 1-6 The car head aluminum alloy skin structure overcomes the defects of the prior art skin structure, in which unevenness easily occurs at each connection position of the skin when it is welded to the metro vehicle framework structure, the consistency of the outer surface of the entire skin is poor, which leads to a decrease in the quality and service life of the skin, and also increases the wind resistance of the metro vehicle, thereby increasing the energy consumption of the metro vehicle. After the application of the car head aluminum alloy skin structure, the outer surface of the entire skin structure is on the same streamline plane, thereby greatly reducing the wind resistance during the running of the train, reducing the overall energy consumption of the train, improving the running efficiency and cruising range of the train, and meeting the traffic development trend of energy saving and emission reduction. The car head aluminum alloy skin structure is not limited to the description of the following embodiments.

[0024] Embodiment 1

[0025] This embodiment gives a car head aluminum alloy skin structure, as shown in Figure 1 , Figure 2 and Figure 4 , which comprises a front skin 1 and a rear skin 2, wherein the rear skin 2 is connected to the front skin 1 by welding to form an integrated structure, the rear skin 2 comprises a rear side upper skin 3 and a rear side window skin 9, the rear side window skin 9 is connected to the rear side upper skin 3, the connection between the rear side window skin 9 and the rear side upper skin 3 adopts an inwardly concave structure, and the depth of the inward concave structure is the thickness of the rear side upper skin 3, so that the outer surface of the rear side upper skin 3 and the rear side window skin 9 after connection is on the same streamline plane.

[0026] Specifically, as shown in Figure 4 , in order to further reduce the wind resistance of the train skin, in this embodiment, the edge of the inwardly concave structure at the inwardly concave position of the rear side window skin 9 adopts a circular arc transition, which can further reduce the wind resistance at the connection between the rear side upper skin 3 and the rear side window skin 9.

[0027] By adopting the above technical solution:

[0028] The aluminum alloy skin structure of the car head is applied, the outer surface of the connecting position of the tail side upper skin 3 and the tail side window skin 9 at the tail position is in the same streamline plane, so that the wind resistance during the train running can be greatly reduced, the energy consumption is reduced, the service life of the skin is prolonged, and the maintenance cost and operation risk of the train are reduced.

[0029] Embodiment 2

[0030] In order to further increase the strength and connection stability of the connecting position of the tail side upper skin 3 and the tail side window skin 9, the inner side structure of the tail side upper skin 3 is further provided with a reinforcing fastener 10 in this embodiment, the reinforcing fastener 10 adopts a U-shaped structure, and the inner recessed part of the tail side window skin 9 is inserted into the inner side of the reinforcing fastener 10, so that the connection strength of the connecting position of the tail side upper skin 3 and the tail side window skin 9 is greatly improved, thereby ensuring the strength of the whole skin structure and prolonging the service life of the skin.

[0031] Specifically, as shown in Figure 4 in order to further improve the consistency of the connecting position of the tail side upper skin 3 and the tail side window skin 9, the length of the reinforcing fastener 10 is the same as the length of the inner recessed part of the tail side window skin 9 in this embodiment, so that the inner recessed part of the tail side window skin 9 is completely covered in the reinforcing fastener 10, thereby further improving the strength of the connecting position of the tail side upper skin 3 and the tail side window skin 9.

[0032] Specifically, as shown in Figure 3 in order to improve the consistency of the surface of the car head skin 1, the side surface of the car head skin 1 is provided with a door skin 7 and a tail side skin 8 in this embodiment, the door skin 7 and the tail side skin 8 are connected, the connecting position of the door skin 7 and the tail side skin 8 adopts a structure of being inwardly concave, and the depth of the inward concave is the thickness of the tail side skin 8, so that the outer surfaces of the door skin 7 and the tail side skin 8 are in the same streamline plane after being connected.

[0033] Specifically, as shown in Figure 5 in order to improve the consistency of the surface of the car head skin 1, the top of the car head skin 1 is provided with a car head top skin 4, and the side surface is provided with a car head side skin 11 in this embodiment, the car head top skin 4 and the car head side skin 11 are connected, the connecting position of the car head side skin 11 and the car head top skin 4 adopts a structure of being inwardly concave, and the depth of the inward concave is the thickness of the car head top skin 4, so that the outer surfaces of the car head side skin 11 and the car head top skin 4 are in the same streamline plane after being connected.

[0034] Specifically, as shown in Figure 6As shown, in order to improve the consistency of the surface of the front skin 1, in the embodiment, the front part of the front skin 1 is provided with a front auxiliary window skin 5 and a front main window skin 6, wherein the front auxiliary window skin 5 and the front main window skin 6 are connected, the connection part of the front main window skin 6 and the front auxiliary window skin 5 adopts a structure of inwardly concave, and the depth of the inward concave is the thickness of the front auxiliary window skin 5, so that the outer surface of the front auxiliary window skin 5 and the front main window skin 6 is on the same streamline plane after being connected.

[0035] It should be noted that: the front aluminum alloy skin structure adopts arc transition at the connecting position of each part (the connecting position of the tail side window skin 9 and the tail side upper skin 3, the connecting position of the door skin 7 and the tail side skin 8, the connecting position of the front top skin 4 and the front side skin 11, and the connecting position of the front auxiliary window skin 5 and the front main window skin 6), so that the flatness of the outer surface of the whole front aluminum alloy skin structure is higher, and the reinforcing fastener 10 structure is arranged on the inner side of the connecting position, so that the connecting strength of the front aluminum alloy skin structure at the connecting position of each part is higher, thereby improving the strength of the whole skin structure.

[0036] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A front aluminum alloy skin structure, characterized in that: include: Front panel (1); The rear panel (2) is welded to the front panel (1) to form an integral structure; The rear panel (2) includes a rear side upper panel (3) and a rear side window panel (9). The rear side window panel (9) and the rear side upper panel (3) are connected to each other. The connection between the rear side window panel (9) and the rear side upper panel (3) adopts an inwardly concave structure, and the depth of the concavity is the thickness of the rear side upper panel (3), so that the outer surfaces of the rear side upper panel (3) and the rear side window panel (9) after connection are on the same streamlined plane.

2. The aluminum alloy skin structure for the front of a vehicle according to claim 1, characterized in that: At the concave position of the rear side window skin (9), the edge of the concave structure adopts an arc-shaped transition.

3. The aluminum alloy skin structure for the front of a vehicle according to claim 2, characterized in that: The inner structure of the rear side upper skin (3) is also provided with a reinforcing fastener (10). The reinforcing fastener (10) adopts a U-shaped structure, and the concave part of the rear side window skin (9) is inserted into the inner side of the reinforcing fastener (10).

4. The aluminum alloy skin structure for the front of a vehicle according to claim 3, characterized in that: The length of the reinforcing fastener (10) is the same as the length of the concave portion of the rear side window liner (9), so that the concave portion of the rear side window liner (9) is completely covered by the reinforcing fastener (10).

5. The aluminum alloy skin structure for the front of a vehicle according to claim 1, characterized in that: The front panel (1) is provided with a door panel (7) and a rear panel (8) on its side. The door panel (7) and the rear panel (8) are connected. The connection between the door panel (7) and the rear panel (8) adopts an inwardly concave structure, and the depth of the concavity is the thickness of the rear panel (8), so that the outer surfaces of the door panel (7) and the rear panel (8) are on the same streamlined plane after they are connected.

6. The aluminum alloy skin structure for the front of a vehicle according to claim 1, characterized in that: The front skin (1) has a top front skin (4) on the top and a side front skin (11) on the side. The top front skin (4) is connected to the side front skin (11). The connection between the side front skin (11) and the top front skin (4) adopts an inwardly concave structure, and the depth of the concavity is the thickness of the top front skin (4), so that the outer surfaces of the side front skin (11) and the top front skin (4) are on the same streamlined plane after they are connected.

7. The aluminum alloy skin structure for the front of a vehicle according to claim 1, characterized in that: The front of the vehicle front skin (1) is provided with a front auxiliary window skin (5) and a front main window skin (6). The front auxiliary window skin (5) and the front main window skin (6) are connected. The connection between the front main window skin (6) and the front auxiliary window skin (5) adopts an inwardly recessed structure, and the depth of the indentation is the thickness of the front auxiliary window skin (5), so that the outer surfaces of the front auxiliary window skin (5) and the front main window skin (6) are on the same streamlined plane after they are connected.