An inner roof structure suitable for large area lighting

Abstract

The present application relates to a kind of inner roof structures suitable for large area lighting, comprising: fixed to the roof skeleton of vehicle body steel structure, fixed to the central lamp of roof skeleton below and the annular lamp decorative plate being arranged around the central lamp, and the side roof plate being arranged around lamp decorative plate, lamp decorative plate has annular flow cavity, flow cavity has the air inlet gap of interval arrangement at top and the air outlet gap at bottom, air inlet gap is communicated with the air duct of vehicle by roof skeleton, air outlet is arranged in the air outlet gap of lower portion of lamp decorative plate, and air outlet is annular structure.The present application makes the visual effect of small size lighting lamp to large area lighting lamp, and because air outlet is connected with air duct by flow cavity, high-speed fresh air in air duct enters into vehicle after flow cavity, improves ride comfort.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of rail vehicles, in particular to an inner roof structure suitable for large-area lighting. BACKGROUND

[0002] The existing inner roof structure of a railway passenger car mainly consists of a middle roof, side roofs and air conditioner air outlets. The middle roof or side roof is provided with lighting lamps. The lamps adopt unit lamps or lamp strip lamps. The air conditioner air outlets are arranged at hidden parts of the inner roof. The air outlets are communicated with air conditioner air ducts. The air conditioner air ducts are located at the back of the middle roof and are invisible to passengers.

[0003] The existing inner roof structure of a railway passenger car mainly has two types.

[0004] 1) The middle roof adopts a flat structure, and the side roofs adopt circular arc structures. Unit lighting lamps and air conditioner air outlets are installed on the roofs. This structure can meet the requirements of decoration, lighting and ventilation. However, the visual effect is general because of the unit lighting lamps. Multiple lamps need to be arranged to meet the interior illumination. The air outlets also adopt a unit structure and are arranged at different positions in the car. The inner roof structure of this structure is complete in function, but the aesthetic appearance is poor.

[0005] 2) The middle roof adopts a large circular arc structure, and the side roofs adopt circular arc structures. An elongated strip-shaped lighting lamp is arranged between the middle roof and the side roofs. Hidden ventilation openings are arranged at the lamp. If necessary, the middle roof can also be provided with unit lighting lamps to supplement the interior illumination. This structure is suitable for use when the car height space is sufficient. The aesthetic appearance is good, but the elongated strip-shaped lighting lamp makes the car interior look less spacious. It is more suitable for passenger trains.

[0006] The existing inner roof structure mainly adopts unit lighting lamps or elongated strip lamps. The main reason is that the lampshade in the lamp adopts PC material. The material performance determines that the maximum size of the lighting lamp is about 650mmx950mm. Although there is no limit to the length of the elongated strip lamp, the maximum size in the width direction is about 300mm. The existing structure cannot achieve the visual effect of large-area lighting lamps with smaller size. Moreover, because the air outlet is directly connected with the air duct, the high-speed fresh air in the air duct directly enters the car, which also causes certain negative impact on the riding experience. SUMMARY

[0007] The technical problem to be solved by the present application is to overcome the shortcomings of the prior art and provide an inner roof structure suitable for large-area lighting.

[0008] The technical scheme adopted by the patent to solve its technical problems is: an inner roof structure suitable for large-area lighting, characterized in that it comprises: a top skeleton fixed to a vehicle body steel structure, a central lamp fixed below the top skeleton, a ring-shaped lamp decoration plate arranged around the central lamp, and a side roof plate arranged around the lamp decoration plate, the lamp decoration plate has a ring-shaped flow slowing cavity, the flow slowing cavity has spaced apart air inlet gaps at the top and air outlet gaps at the bottom, the air inlet gaps are communicated with the air duct of the vehicle through the top skeleton, the lower part of the lamp decoration plate is provided with air outlets which are in butt joint with the air outlet gaps, and the air outlets are ring-shaped structures.

[0009] Further, the inner end of the side roof plate is hung on the top skeleton through a side roof plate connecting support, and the outer end of the side roof plate is fixed to the side wall of the vehicle, so that the entire inner roof structure forms a closed loop.

[0010] Further, the central lamp comprises a left side lamp and a right side lamp, and a middle partition box is arranged between the left side lamp and the right side lamp and hung on the top skeleton, and the middle partition box is used for shielding the gap between the left side lamp and the right side lamp.

[0011] Further, the top skeleton is a frame structure assembled by a plurality of aluminum profiles, the air duct of the vehicle is sealed and fixed above the top skeleton, and the lamp decoration plate is sealed and fixed below the top skeleton, and the air duct and the top skeleton and the lamp decoration plate and the top skeleton are all sealed by compressed foam.

[0012] In addition, the application also claims to protect the installation method of the above-mentioned inner roof structure suitable for large-area lighting, characterized by the following steps:

[0013] Step 1, first install the top skeleton on the vehicle body beam column;

[0014] Step 2, drop the air duct on the skeleton, align the air outlet of the air duct with the air inlet of the top skeleton and seal and fix them;

[0015] Step 3, fix the lamp decoration plate below the top skeleton, seal between the lamp decoration plate and the top skeleton, and ensure that the air inlet gaps of the flow slowing cavity of the lamp decoration plate are communicated with the air duct;

[0016] Step 4, the outer ends of the left side lamp and the right side lamp are respectively inserted into the lamp decoration plate and fixed with the top skeleton;

[0017] Step 5, fix the side roof plate connecting support on the top skeleton, fix the side roof plate with the side roof plate connecting support through fasteners, and fix the outer side of the side roof plate with the side wall;

[0018] Step 6, fix the ring-shaped air outlet below the lamp decoration plate, and press the side roof plate on one side of the air outlet and shield the mounting fasteners of the side roof plate;

[0019] Step 7, install the intermediate partition box under the top skeleton through the fixing support, so that the intermediate partition box blocks the gap between the left lamp and the right lamp.

[0020] The inner roof structure suitable for large-area lighting of the application adopts annular cavity design for the lamp decoration plate, and the lamp decoration plate is arranged around the central lamp. The lamp decoration plate is provided with an annular flow slowing cavity, and the flow slowing cavity is communicated with the air duct through the top skeleton. When the high-speed fresh air in the air duct enters the cavity, due to the fact that the fresh air enters the large-volume flow slowing cavity of the lamp decoration plate from the small-volume air duct, according to the reverse reasoning of the "narrow pipe effect", the increase of space will cause the speed of the fresh air flow to decrease, and then the fresh air enters the vehicle through the air outlet through the opening at the bottom of the lamp decoration plate, thereby bringing fresh air to the passengers and not causing discomfort.

[0021] The inner roof structure suitable for large-area lighting of the application is provided with a middle partition box at the gap between the left lamp and the right lamp, which can block the gap, so that the left lamp and the right lamp have the integrity in appearance, so that the originally limited width of 650mm of the lamp presents a doubled effect, the width is about 1300mm, and the visual sense of large-area lighting is realized.

[0022] The application sets a flow slowing cavity in the lamp decoration plate, and the flow slowing cavity is part of the ventilation system. The air duct and the lamp decoration plate are fixed through the lamp skeleton, and at the same time, the communication between the air duct and the flow slowing cavity is completed, so that the application simplifies the air duct system and improves the assembly efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0023] Fig. 1 is a sectional view of the inner roof structure suitable for large-area lighting of the application.

[0024] Figure 2 is an exploded view of the inner roof structure suitable for large-area lighting of the application.

[0025] Figure 3 is an enlarged view of the lamp decoration plate part of the inner roof structure of the application.

[0026] Figure 4 is an effect view of the inner roof structure suitable for large-area lighting of the application.

[0027] The reference numerals in the figure are as follows:

[0028] 1-top skeleton; 2-lamp decoration plate; 3-side roof; 4-air outlet; 5-intermediate partition box; 6-side roof connecting support; 7-left lamp; 8-right lamp; 9-air duct, 10-side wall, 11-compressed foam; 12-hard sealing plate. EMBODIMENT

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0030] As shown in Figures 1 to 3 The present application is applicable to the inner roof structure of large-area lighting, which comprises a top skeleton 1 fixed to the steel structure of a vehicle body, a central lamp and a ring-shaped lamp decoration plate 2 arranged around the central lamp, and a side roof 3 arranged around the lamp decoration plate 2. The central lamp comprises a left lamp 7 and a right lamp 8, and an intermediate partition box 5 is arranged between the left lamp 7 and the right lamp 8 and hung on the top skeleton 1, which is used to shield the gap between the left lamp 7 and the right lamp 8. The lamp decoration plate 2 has a ring-shaped flow buffer cavity, which has spaced apart air inlet gaps at the top and air outlet gaps at the bottom. The air inlet gaps are communicated with the air duct 9 of the vehicle through the top skeleton 1, and the lower part of the lamp decoration plate 2 is provided with air outlets 4 which are connected with the air outlet gaps, and the air outlets 4 are ring-shaped structures.

[0031] The top skeleton 1 is a frame structure assembled by a plurality of aluminum profiles. The air duct 9 of the vehicle is sealed and fixed above the top skeleton 1, and the lamp decoration plate 2 is sealed and fixed below the top skeleton 1. The air duct 9 and the top skeleton 1, and the lamp decoration plate 2 and the top skeleton 1 are all sealed by compressed foam 11. Specifically, the air duct 9 has four sides with flanges, and the flanges are pasted with compressed foam 11. When the air duct flanges are fixed between the corresponding top skeletons, the compressed foam 11 is in a compressed state, which ensures that the fresh air will not leak from the gap between the air duct and the top skeleton. The lamp decoration plate 2 is located below the top skeleton 1 and also has flanges pasted with compressed foam 11. When the lamp decoration plate 2 is fixed with the top skeleton 1, the compressed foam 11 is in a compressed state, which ensures that the fresh air will not leak from the gap between the top skeleton 1 and the lamp decoration plate 2. The top skeleton is made of aluminum profile, and a hard sealing plate 12 is arranged at the top skeleton in the fresh air passing area to prevent fresh air from leaking from the gap of the top skeleton itself. The lamp decoration plate 2 has a ring wall inclined to the inside of the vehicle below the central lamp. The air outlet 4 is provided with a groove, and the groove is provided with an air outlet hole and a mounting hole. The outer end of the air outlet is pressed on the edge of the side roof 3 to shield the mounting structure of the side roof.

[0032] The inner end of the side roof 3 is hung on the top skeleton 1 through the side roof connecting bracket 6, and the outer end of the side roof 3 is fixed with the side wall 10 of the vehicle, so that the entire inner roof structure forms a closed loop.

[0033] The lamp decoration plate 4 is provided with a clamping spring for clamping the end of the central lamp and a supporting plate for supporting the bottom of the central lamp. The outer sides of the left lamp 7 and the right lamp 8 are inserted into the lamp decoration plate 2 and are fixed with the top frame 1, and are clamped by the clamping spring and supported by the supporting plate. The middle partition box 5 for shielding the gap between the left lamp 7 and the right lamp 8 is fixed with the top frame 1 through the fixing support. The cylindrical lamp for light supplementing and decoration is installed in the middle partition box 5, and the two ends thereof are connected with the lamp decoration plate 2. WIFI antenna and fire and smoke probe can also be installed in the gap between the left lamp 7 and the right lamp 8.

[0034] The inner roof structure suitable for large-area lighting of the present application is composed of a top frame, a central lamp, a lamp decoration plate, a middle partition box, a side roof and an air outlet. The central lamp is located at the middle position in the vehicle and is divided into a left lamp and a right lamp. The middle partition box is located between the left lamp and the right lamp. The lamp decoration plate is annular and surrounds the central lamp. The side roof is located around the lamp decoration plate. The air outlet is installed between the side roof and the lamp decoration plate and is communicated with the inner cavity of the lamp decoration plate. The high-speed fresh air in the air duct flows slowly into the vehicle through the air outlet after slow flow in the cavity of the lamp decoration plate.

[0035] The inner roof structure suitable for large-area lighting of the present application is provided with a top frame at the topmost end. The top frame adopts a frame structure and is assembled by a plurality of aluminum profiles. A plurality of mounting interfaces are arranged on the top frame for mounting the lamp decoration plate, the middle partition box, the side roof and the like, and for connecting with the air duct to guide fresh air. A sealing flange is arranged on the top frame, and compressed foam is bonded to the lower part of the flange to prevent leakage of fresh air when the fresh air enters the cavity of the lamp decoration plate through the top frame.

[0036] The inner roof structure suitable for large-area lighting of the present application is composed of a left lamp and a right lamp. Each lamp is composed of a plurality of unit lamps. The width of each lamp is limited to about 650 mm, and the length is not limited. A gap is left between the left lamp and the right lamp, which can be used for installing WIFI antenna, fire and smoke probe and the like.

[0037] The inner top plate structure suitable for large-area lighting of the present application, the lamp decoration plate adopts an annular cavity design, the lamp decoration plate is arranged around the central lamp, the spring catch and the supporting plate are arranged on the decoration plate, the spring catch can catch the central lamp, and the supporting plate can press the central lamp, so that the stability of the central lamp can be ensured, and the instability of the lamp caused by train shaking can be avoided. The lamp decoration plate is also provided with an annular cavity in the middle, the cavity is communicated with the air duct through the top frame, when the high-speed fresh air in the air duct enters the cavity, according to the reverse reasoning of the “narrow pipe effect”, the increase of space will cause the flow speed of the fresh air to decrease, then the fresh air enters the train through the air outlet at the bottom of the lamp decoration plate, so that the passengers can get fresh air without discomfort. The embedded lining is arranged at the bottom of the lamp decoration plate, and the air outlet is arranged.

[0038] The inner top plate structure suitable for large-area lighting of the present application, the lamp decoration plate adopts an annular cavity design, the lamp decoration plate is arranged around the central lamp, the spring catch and the supporting plate are arranged on the decoration plate, the spring catch can catch the central lamp, and the supporting plate can press the central lamp, so that the stability of the central lamp can be ensured, and the instability of the lamp caused by train shaking can be avoided. The lamp decoration plate is also provided with an annular cavity in the middle, the cavity is communicated with the air duct through the top frame, when the high-speed fresh air in the air duct enters the cavity, according to the reverse reasoning of the “narrow pipe effect”, the increase of space will cause the flow speed of the fresh air to decrease, then the fresh air enters the train through the air outlet at the bottom of the lamp decoration plate, so that the passengers can get fresh air without discomfort. The embedded lining is arranged at the bottom of the lamp decoration plate, and the air outlet is arranged.

[0039] The inner top plate structure suitable for large-area lighting of the present application, the lamp decoration plate adopts an annular cavity design, the lamp decoration plate is arranged around the central lamp, the spring catch and the supporting plate are arranged on the decoration plate, the spring catch can catch the central lamp, and the supporting plate can press the central lamp, so that the stability of the central lamp can be ensured, and the instability of the lamp caused by train shaking can be avoided. The lamp decoration plate is also provided with an annular cavity in the middle, the cavity is communicated with the air duct through the top frame, when the high-speed fresh air in the air duct enters the cavity, according to the reverse reasoning of the “narrow pipe effect”, the increase of space will cause the flow speed of the fresh air to decrease, then the fresh air enters the train through the air outlet at the bottom of the lamp decoration plate, so that the passengers can get fresh air without discomfort. The embedded lining is arranged at the bottom of the lamp decoration plate, and the air outlet is arranged.

[0040] The installation method of the inner top plate structure suitable for large-area lighting of the present application, comprising the following steps:

[0041] Step 1, first install the top frame 1 on the car body beam column.

[0042] Step 2, place the air duct 9 on the frame 1, the air outlet of the air duct 9 is aligned with the air inlet of the top frame 1 and is sealed and fixed.

[0043] Step 3, fix the lamp decoration plate 2 below the top frame 1, seal between the lamp decoration plate and the top frame 1, and ensure that the air inlet gap of the slow flow cavity of the lamp decoration plate 2 is communicated with the air duct 9.

[0044] Step 4, the outer end of the left lamp 7 and the right lamp 8 are respectively inserted into the lamp decoration plate 2 and fixed with the top skeleton 1, WIFI antenna and fire probe are installed in the gap between the left lamp 7 and the right lamp 8.

[0045] Step 5, the side top plate connecting bracket 6 is fixed on the top skeleton 1, the side top plate 3 is fixed with the side top plate connecting bracket 6 through fasteners, and the outer side of the side top plate 3 is fixed with the side wall 10.

[0046] Step 6, the annular air outlet 4 is fixed below the lamp decoration plate 2, one side of the air outlet 4 presses the side top plate 3 and blocks the mounting fastener of the side top plate 3.

[0047] Step 7, the middle partition box 5 is installed below the top skeleton 1 through the fixing bracket, so that the middle partition box 5 blocks the gap between the left lamp 7 and the right lamp 8.

[0048] The whole inner top plate structure forms a closed loop, and the installation of the whole structure is completed.

[0049] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An inner ceiling panel structure suitable for large-area lighting, characterized in that... include: The vehicle body has a top frame (1) fixed to the steel structure, a central lamp fixed below the top frame (1) and a ring-shaped lamp decoration plate (2) surrounding the central lamp, and a side top plate (3) surrounding the lamp decoration plate (2). The lamp decoration plate (2) has a ring-shaped flow chamber. The flow chamber has an air inlet at the top and an air outlet at the bottom. The air inlet is connected to the vehicle's air duct (9) through the top frame (1). The lower part of the lamp decoration plate (2) is provided with an air outlet (4) that connects to the air outlet. The air outlet (4) is a ring structure. The inner end of the side top plate (3) is suspended from the top frame (1) through the side top plate connecting bracket (6), and the outer end of the side top plate (3) is fixed to the side wall (10) of the vehicle, so that the entire inner top plate structure forms a closed loop. The central light fixture includes a left light fixture (7) and a right light fixture (8). A middle partition box (5) suspended from the top frame (1) is provided between the left light fixture (7) and the right light fixture (8). The middle partition box (5) is used to cover the gap between the left light fixture (7) and the right light fixture (8). The middle partition box (5) is equipped with downlights for supplementary lighting and decoration. The two ends of the middle partition box (5) are connected to the lamp decoration panel (2). The middle partition box (5) is fixed to the top frame (1) by a fixed bracket.

2. The inner ceiling panel structure suitable for large-area lighting according to claim 1, characterized in that: The lamp trim panel (2) has an inwardly inclined ring wall located below the central lamp.

3. The inner ceiling panel structure suitable for large-area lighting according to claim 1, characterized in that: The top frame (1) is a frame structure assembled from multiple aluminum profiles. The vehicle's air duct (9) is sealed and fixed above the top frame (1), and the lamp decoration panel (2) is sealed and fixed below the top frame (1). The air duct (9) and the top frame (1), as well as the lamp decoration panel (2) and the top frame (1), are sealed with compressed foam (11).

4. The inner ceiling panel structure suitable for large-area lighting according to claim 1, characterized in that: The lamp decorative panel (2) is provided with a snap ring for locking the end of the central lamp and a support plate for supporting the bottom of the central lamp.

5. The inner ceiling panel structure suitable for large-area lighting according to claim 1, characterized in that: The air outlet (4) is provided with a groove, and the groove is provided with an air outlet hole and a mounting hole. The outer end of the air outlet is pressed against the edge of the side top plate (3) to cover the mounting structure of the side top plate.

6. An installation method for an inner ceiling panel structure suitable for large-area lighting as described in any one of claims 1-5, characterized in that... Includes the following steps: Step 1: First, install the top frame (1) on the vehicle body beams and columns; Step 2: Place the air duct (9) on the top frame (1), align the air outlet of the air duct (9) with the air inlet of the top frame (1) and seal and fix it. Step 3: Fix the lamp decorative panel (2) below the top frame (1), seal the lamp decorative panel and the top frame (1) to ensure that the air inlet of the lamp decorative panel (2) is connected to the air duct (9); Step 4: Insert the outer ends of the left lamp (7) and the right lamp (8) into the lamp decorative panel (2) and fix them to the top frame (1); Step 5: Fix the side top plate connecting bracket (6) to the top frame (1), and fix the side top plate (3) to the side top plate connecting bracket (6) with fasteners. The outer side of the side top plate (3) is fixed to the side wall (10). Step 6: Fix the annular air outlet (4) below the lamp decorative panel (2), with one side of the air outlet (4) pressing against the side top plate (3) and covering the mounting fasteners of the side top plate (3); Step 7: Install the middle partition box (5) under the top frame (1) using a fixed bracket so that the middle partition box (5) covers the gap between the left light fixture (7) and the right light fixture (8).

7. The installation method for the inner ceiling panel structure suitable for large-area lighting according to claim 6, characterized in that: After step 4 is completed, install the WIFI antenna and smoke detector in the gap between the left lamp (7) and the right lamp (8).

Images