Viewing window for roof of passenger train

Abstract

The viewing window for the roof of the passenger train comprises an outer frame, the outer frame is of a hollow frame structure, the outer frame is of an arc-shaped structure with the middle protruding, a display assembly is installed in the outer frame, the display assembly is matched with the bent shape of the outer frame, the display assembly comprises a first transparent plate and a second transparent plate, and the first transparent plate is connected with the second transparent plate. The first transparent plate and the second transparent plate are glued and fixed, the first transparent plate is arranged on the outer side of the second transparent plate, the second transparent plate is close to the inner side of a carriage, a liquid crystal dimming film is arranged between the first transparent plate and the second transparent plate, and the liquid crystal dimming film is connected with a voltage or current control circuit in a vehicle body to change the light transmittance of the liquid crystal dimming film. According to the viewing window for the roof of the passenger train, in the display assembly, the laminated glass and single-layer glass structure is adopted to be bonded with the liquid crystal dimming film, the intensity of light in the train can be manually adjusted according to different time periods and illumination conditions, and more comfortable, safer and more environment-friendly travel experience is provided for passengers.

Description

Technical Field

[0001] The utility model relates to the technical field of train manufacturing, in particular to a sightseeing window used on the roof of a railway passenger car. Background Art

[0002] With the rapid development of the railway industry, people's demands for train travel are no longer limited to safety and speed, but also to comfort, functionality, and other aspects of their journey. Against this backdrop, the limitations of existing technology for train windows, a crucial component of train facilities, are becoming increasingly apparent. Currently, the vast majority of train windows utilize a non-circular structure. In practice, this structure hinders the utilization of interior space and limits the flexibility of the carriage layout. Furthermore, the rigidity of non-circular windows reduces the overall coordination and aesthetics of the train's exterior. Furthermore, existing train windows generally lack dimming functionality, a feature that presents a series of operational challenges. During long journeys, light intensity varies significantly at different times of the day, making it difficult for passengers to adjust the interior lighting to their needs. During sunny days, the intense light can rapidly heat up the carriage, increasing the load on the train's air conditioning system. This not only consumes more energy but can also cause localized overheating, impacting passenger comfort. Utility Model Content

[0003] The purpose of the utility model is to provide a sightseeing window for the roof of a railway passenger car to solve the technical problems in the background technology.

[0004] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions:

[0005] A viewing window for the roof of a railway passenger car comprises an outer frame, the outer frame being a hollow frame structure and an arc-shaped structure with a central bulge. A display assembly is mounted within the outer frame, the display assembly matching the curved shape of the outer frame. The display assembly comprises a first transparent plate and a second transparent plate, the first transparent plate and the second transparent plate being fixed by adhesive, the first transparent plate being outside the second transparent plate and the second transparent plate being close to the inside of the car. A liquid crystal dimming film is disposed between the first and second transparent plates, the liquid crystal dimming film being connected to a voltage or current control circuit within the car body to change the light transmittance of the liquid crystal dimming film.

[0006] The first transparent plate is a laminated glass structure. The first transparent plate includes a first glass layer and a second glass layer. Argon gas is filled between the first glass layer and the second glass layer.

[0007] The length of the first glass layer is greater than that of the second glass layer. The length difference between the first glass layer and the second glass layer forms a limiting step portion. The first glass layer is on the outer end surface of the outer frame.

[0008] A first adhesive layer is filled between the outer frame and the display assembly.

[0009] The outer frame includes a main frame body, a support plate extending outward from the lower side of the main frame body close to the display component, the second transparent plate is on the support plate, the first adhesive layer extends from the lower side to fill above the support plate, and the first adhesive layer extends from the upper side to fill the limiting step portion.

[0010] An explosion-proof film is pasted on the inner side of the first glass layer.

[0011] The second transparent plate is made of glass.

[0012] Compared with the existing technology, the viewing window for the roof of a railway passenger car in the present application adopts an arc-shaped window shape, which can disperse the vibration and pressure generated by the train operation more evenly and avoid stress concentration. Moreover, the arc-shaped design of the window not only conforms to the overall streamlined appearance of the vehicle, but also provides a wider field of view, bringing a better viewing experience to passengers. In addition, in the display component, a liquid crystal dimming film is bonded with a structure of laminated glass plus single-layer glass to ensure the clarity and durability of the window while improving the impact resistance and safety of the window. The liquid crystal dimming film can be used to manually adjust the light intensity in the car according to different time periods and lighting conditions, providing passengers with a more comfortable, safe and environmentally friendly travel experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 : A longitudinal cross-sectional structural diagram of the present application;

[0014] Figure 2 : Display component structure diagram;

[0015] Figure 3 :The installation and use effect diagram of this application;

[0016] Figure 4 : This application and the installation structure diagram of the vehicle body window. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0018] Specific embodiment 1: Please refer to Figure 1 and Figure 2In one embodiment of the present invention, a viewing window for a railway passenger car roof includes an outer frame 1, which is a hollow frame structure with a centrally convex arc-shaped structure. A display assembly is mounted within the outer frame 1, and the display assembly matches the curved shape of the outer frame 1. The display assembly includes a first transparent plate 2 and a second transparent plate 3, which are adhesively fixed to each other. The first transparent plate 2 is outside the second transparent plate 3, and the second transparent plate 3 is closer to the inside of the car. A liquid crystal dimming film 4 is disposed between the first transparent plate 2 and the second transparent plate 3. The liquid crystal dimming film 4 is connected to a voltage or current control circuit within the car body to change the light transmittance of the liquid crystal dimming film 4. The light transmittance is controlled by voltage-controlled changes in the orientation of liquid crystal molecules. The liquid crystal molecules change their arrangement under the action of an electric field, thereby affecting the propagation path of light and achieving a dimming effect. The window is powered by an on-board power supply. The AC power within the car is supplied to the dimming window through a transformer. The light transmittance of the window is controlled by a voltage adjustment knob, so that the glass can be switched between transparent and opaque states or between different light transmittance states.

[0019] In the present application, the first transparent plate 2 is a laminated glass structure, and the first transparent plate 2 includes a first glass layer 201 and a second glass layer 202. Argon gas A is filled between the first glass layer 201 and the second glass layer 202, and an explosion-proof film 5 is pasted on the inside of the first glass layer 201. The setting of the explosion-proof film 5 can prevent the laminated glass from being broken by a strong external force. The explosion-proof film 5 can tightly adhere the broken glass fragments together by virtue of its own viscosity and toughness, so that they will not fly everywhere. In addition, the explosion-proof film 5 also has good heat insulation performance, which can effectively block the infrared heat in the solar radiation from entering the vehicle compartment.

[0020] The length of the first glass layer 201 is greater than that of the second glass layer 202 . The length difference between the first glass layer 201 and the second glass layer 202 forms a limiting step 203 . The first glass layer 201 is on the outer end surface of the outer frame 1 .

[0021] A first adhesive layer 6 is placed between the outer frame 1 and the display assembly to ensure the window's sealing performance. The outer frame 1 comprises a main frame 101. A support plate 102 extends outward from the lower side of the main frame 101, near the display assembly. The second transparent plate 3 rests on support plate 102. The first adhesive layer 6 extends from below to above support plate 102, and from above to the stopper 203. In other words, the entire first adhesive layer 6 fills both the outer and inner end surfaces of the outer frame 1, tightly filling the gap between the display assembly and the outer frame 1.

[0022] In this application, the second transparent plate 3 is made of glass, and the second transparent plate 3, the first glass layer 201 and the second glass layer 202 are all made of ultra-white tempered glass. Ultra-white tempered glass has the characteristics of high light transmittance, low reflectivity, high strength, etc., which can ensure the clarity and durability of the car windows and enhance the lighting and sightseeing of the car.

[0023] See also Figure 3 and Figure 4 In actual installation, the main body of the outer frame 1 is fixed to the window position on the car body 7 by screws, and the second adhesive layer 8 is filled between the main frame 101 and the car body for sealing to achieve the sealed installation of the car window.

[0024] Compared with the existing technology, the viewing window for the roof of a railway passenger car in the present application adopts an arc-shaped window shape, which can disperse the vibration and pressure generated by the train operation more evenly and avoid stress concentration. Moreover, the arc-shaped design of the window not only conforms to the overall streamlined appearance of the vehicle, but also provides a wider field of view, bringing a better viewing experience to passengers. In addition, in the display component, a liquid crystal dimming film is bonded with a structure of laminated glass plus single-layer glass to ensure the clarity and durability of the window while improving the impact resistance and safety of the window. The liquid crystal dimming film can be used to manually adjust the light intensity in the car according to different time periods and lighting conditions, providing passengers with a more comfortable, safe and environmentally friendly travel experience.

[0025] It will be apparent to those skilled in the art that the present invention is not limited to the details of the foregoing exemplary embodiments and that the present invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0026] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A viewing window for a railway passenger car roof, characterized in that: The vehicle comprises an outer frame, which is a hollow frame structure and an arc-shaped structure with a convex middle portion. A display assembly is installed in the outer frame, and the display assembly matches the curved shape of the outer frame. The display assembly comprises a first transparent plate and a second transparent plate, which are glued and fixed. The first transparent plate is on the outside of the second transparent plate, and the second transparent plate is close to the inside of the vehicle. A liquid crystal dimming film is provided between the first transparent plate and the second transparent plate, and the liquid crystal dimming film is connected to a voltage or current control circuit in the vehicle body to change the transmittance of the liquid crystal dimming film.

2. The viewing window for a railway passenger car roof according to claim 1, characterized in that: The first transparent plate is a laminated glass structure. The first transparent plate includes a first glass layer and a second glass layer. Argon gas is filled between the first glass layer and the second glass layer.

3. The viewing window for a railway passenger car roof according to claim 2, characterized in that: The length of the first glass layer is greater than that of the second glass layer. The length difference between the first glass layer and the second glass layer forms a limiting step portion. The first glass layer is on the outer end surface of the outer frame.

4. The viewing window for a railway passenger car roof according to claim 3, characterized in that: A first adhesive layer is filled between the outer frame and the display assembly.

5. The viewing window for a railway passenger car roof according to claim 4, characterized in that: The outer frame includes a main frame body, a support plate extending outward from the lower side of the main frame body close to the display component, the second transparent plate is on the support plate, the first adhesive layer extends from the lower side to fill above the support plate, and the first adhesive layer extends from the upper side to fill the limiting step portion.

6. The viewing window for a railway passenger car roof according to claim 5, characterized in that: An explosion-proof film is pasted on the inner side of the first glass layer.

7. The viewing window for a railway passenger car roof according to claim 5, characterized in that: The second transparent plate is made of glass.

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