Ceiling fixing structure and vehicle

Abstract

The present invention provides a ceiling fixing structure and a vehicle, and relates to the technical field of automobiles. The ceiling fixing structure includes a ceiling attached to the inside of a body side panel, a pillar inner panel attached to the inside of the body side panel, and a side curtain airbag installed between the body side panel and a ceiling side wall, wherein the end of the ceiling side wall abuts against the tip of the pillar inner panel, and the space between the ceiling and the pillar inner panel is arranged so that when the end of the ceiling side wall displaces into the vehicle interior due to the impact of the side curtain airbag, the tip of the pillar inner panel can avoid the displacement path of the end of the ceiling side wall. By abutting the end of the ceiling side wall against the tip of the pillar inner panel, the ceiling can displace into the vehicle interior without hindrance when the side curtain airbag detonates, thereby ensuring its own strength with a simple structure, guiding the side curtain airbag to deploy smoothly when it inflates, and preventing the pillar inner panel and parts of the ceiling from exploding and becoming detached due to a collision when the side curtain airbag detonates.

Description

[Technical Field]

[0001] The present invention relates to the technical field of automobiles, and more particularly to a ceiling fixing structure and a vehicle. [Background technology]

[0002] Currently, airbags are widely used in passenger cars. In addition to airbags installed in the dashboard, most passenger cars also have side curtain airbags installed to protect the safety of occupants in the event of a side collision. The side curtain airbags are usually installed at the junction between the side panel and the ceiling. When the vehicle is hit from the side, the side curtain airbags inflate and deploy downward, providing cushioning protection between the occupant and the side panel.

[0003] Because side curtain airbags must deploy downward at the moment they inflate, a side curtain airbag guide structure is typically attached to the bottom of the side curtain airbag so that the side curtain airbag deploys along the guide direction and then passes through the ceiling to protect the safety of passengers. Existing guide structures are relatively prone to coming loose when the side curtain airbag inflates, making them more likely to injure passengers inside the vehicle.

[0004] Therefore, it is necessary to design the ceiling fixing structure and the vehicle so as to solve the above problems. Summary of the Invention [Problem to be solved by the invention]

[0005] In view of the above-mentioned drawbacks of the conventional technology, the present invention provides a ceiling fixing structure that solves the technical problem of the conventional technology that the ceiling fixing structure is easily disassembled and detached when a side curtain airbag inflates and breaks through the ceiling. [Means for solving the problem]

[0006] In order to achieve the above and other related objects, the present invention provides a ceiling fixing structure, which includes a ceiling attached to the inside of a side panel of a body, a pillar inner panel attached to the inside of the side panel of the body, and a side curtain airbag provided between the side panel of the body and a ceiling side wall, wherein the end of the ceiling side wall and the tip of the pillar inner panel are butted together, and the space between the ceiling and the pillar inner panel is positioned so that when the end of the ceiling side wall is displaced into the vehicle interior due to the impact of the side curtain airbag, the tip of the pillar inner panel can avoid the displacement path of the end of the ceiling side wall.

[0007] In an exemplary embodiment of the present application, an engagement groove is provided at the tip of the pillar inner panel, the engagement groove is recessed toward one side of the inner edge of the pillar inner panel, and the end of the side wall of the ceiling is abutted into the engagement groove.

[0008] In an exemplary embodiment of the present application, a butting plate is provided at the end of the side wall of the ceiling, and the butting plate is butted against the inner wall of the engagement groove on the side that is connected to the pillar inner panel.

[0009] In an exemplary embodiment of the present application, a position restriction structure is provided between the abutment plate and the engagement groove, and the position restriction structure restricts the displacement of the opposing sliding movement between the abutment plate and the engagement groove.

[0010] In an exemplary embodiment of the present application, the position control structure includes a guide groove and an insertion member, the guide groove is provided on the inner wall on one side of the engagement groove, the insertion member is provided on the abutment plate, the guide groove extends to one side of the groove bottom of the engagement groove on the inner wall surface, the opening of the guide groove is provided on the outer edge of the engagement groove on the side facing the interior of the vehicle, and the insertion member slides into and engages with the guide groove by the guide of the groove body of the guide groove.

[0011] In the present exemplary embodiment, the ceiling comprises a double structure.

[0012] In an exemplary embodiment of the present application, a guide plate is further provided at the tip of the pillar inner panel, the guide plate is connected above the engagement groove, the guide plate extends from the pillar inner panel toward the side panel of the body, and the extended end of the guide plate is inserted into the side panel of the body.

[0013] In an exemplary embodiment of the present application, the extended end of the guide plate is inserted into the insertion groove of the side panel of the body, and the end of the guide plate is provided with a felt.

[0014] In the present exemplary embodiment, the guide plate and the side wall of the ceiling form a V-shaped groove.

[0015] In an exemplary embodiment of the present application, the ceiling is provided with a plurality of functional component mounting openings, and the ceiling is further provided with a plurality of reinforcing frames each surrounding a corresponding functional component mounting opening, the shape of each reinforcing frame being adapted to the shape of the corresponding functional component mounting opening.

[0016] In an exemplary embodiment of the present application, a plurality of elastic spacers are provided along the edge of the ceiling, and the plurality of elastic spacers are symmetrically adhered to both edges of the ceiling, respectively, and the lengths of the plurality of elastic spacers are the same.

[0017] In an exemplary embodiment of the present application, the ceiling is further provided with a flip-down monitor mounting opening, the flip-down monitor mounting opening is positioned between the two functional component mounting openings, reinforcing bridges are attached to both sides of the flip-down monitor mounting opening, the central axis of the flip-down monitor mounting opening overlaps with the central axis of each of the two adjacent functional component mounting openings, and the reinforcing bridges are distributed on both sides of the flip-down monitor mounting opening along the central axis of the flip-down monitor mounting opening.

[0018] In an exemplary embodiment of the present application, a cutout area is provided in the ceiling, and the ceiling fixing structure further includes an ambient light holder that is provided along the periphery of the cutout area, with a portion of the structure appearing within the cutout area, and is tightly attached to the upper side of the ceiling, and an ambient light panel that is positioned on the underside of the ceiling and is connected to the ambient light holder in the cutout area via a connecting member.

[0019] In an exemplary embodiment of the present application, the connecting members include a screw connecting member and an elastic engaging member, and the screw connecting member and the elastic engaging member are respectively provided around the periphery of the ambient light panel.

[0020] The present application further provides a vehicle including the ceiling fixing structure described above. (beneficial effects)

[0021] In the ceiling fixing structure and vehicle of the present invention, the ends of the ceiling side walls abut against the tips of the pillar inner panels, allowing the ceiling to move unhindered into the vehicle when a side curtain airbag explodes, thereby ensuring its own strength with a simple structure, guiding the side curtain airbag to deploy smoothly when detonated, and preventing the pillar inner panels and parts of the ceiling from exploding and becoming detached due to a collision when the side curtain airbag explodes. Therefore, the present invention effectively overcomes several practical problems in the prior art and has great utility value and significance.

[0022] In order to more clearly describe the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. The drawings in the following description are only some embodiments of the present invention, and it is obvious to those skilled in the art that other drawings can be obtained based on these drawings without any creative work. [Brief explanation of the drawings]

[0023] [Figure 1] 1 is a three-dimensional view of a ceiling fixing structure according to an embodiment of the present invention; [Figure 2] 1 is a structural side view of a ceiling fixing structure according to an embodiment of the present invention; [Figure 3] FIG. 2 is another structural side view of the ceiling fixing structure according to an embodiment of the present invention. [Figure 4] 1 is a schematic diagram showing the structure of a ceiling inside a vehicle according to an embodiment of the present invention; [Figure 5] 1 is a schematic diagram showing the structure of a ceiling on the exterior side of a vehicle according to an embodiment of the present invention; [Figure 6] 10 is a schematic structural view of a ceiling from another viewpoint on the vehicle exterior side according to an embodiment of the present invention. FIG. [Figure 7] 1 shows a schematic diagram of the material structure of a ceiling according to an embodiment of the present invention. [Figure 8] 1 shows a structural schematic diagram of a ceiling according to an embodiment of the present invention. [Figure 9] A bottom view of FIG. 8 is shown. [Figure 10] Figure 9 shows a schematic diagram of the structure after the ambient light panel is installed. [Figure 11] 1 shows a structural schematic diagram of a fixing structure of an ambient light panel according to an embodiment of the present invention; [Figure 12] 1 shows a structural schematic diagram of an ambient light panel according to an embodiment of the present invention; [Figure 13] 2 shows a structural schematic diagram of an ambient light panel according to an embodiment of the present invention from another perspective; FIG. [Figure 14] 1 shows an enlarged partial view of an ambient light panel according to an embodiment of the present invention. [Figure 15] 1 is a schematic structural diagram of a double elastic buckle according to an embodiment of the present invention; [Figure 16] 1 is a schematic diagram showing the structure of a double elastic buckle and an ambient light holder connected together according to an embodiment of the present invention; [Figure 17] 1 is a schematic diagram showing the structure of a one-sided elastic buckle and an ambient light holder connected together according to an embodiment of the present invention; [Figure 18]1 is a structural schematic diagram of a tapping screw according to an embodiment of the present invention; [Figure 19] 1 is a schematic diagram showing a structure in which a tapping screw and an ambient light holder are connected according to an embodiment of the present invention; [Figure 20] 1A and 1B are schematic structural diagrams of a shield frame and an ambient light holder according to an embodiment of the present invention; DETAILED DESCRIPTION OF THE INVENTION

[0024] Hereinafter, embodiments of the present invention will be described through specific examples. However, those skilled in the art will easily understand other advantages and effects of the present invention from the disclosure of this specification. The present invention can be implemented or applied through other different specific embodiments, and various details of this specification can be modified or changed in various ways based on various perspectives and applications without departing from the spirit of the present invention. Furthermore, unless inconsistent, the following examples or features in the examples may be combined with each other. Furthermore, it should be understood that the terms used in the examples of the present invention are intended to describe specific implementation means and are not intended to limit the scope of protection of the present invention. In the following examples, test methods for which specific conditions are not specified generally follow conventional conditions or conditions recommended by each manufacturer.

[0025] When a numerical range is given in the examples, it should be understood that the two endpoints of each numerical range and any value between the two endpoints can be selected unless otherwise specified in the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention are consistent with the understanding of a person skilled in the art in the prior art and the description of the present invention, and the present invention may be practiced using any methods, devices, and materials in the prior art that are similar or equivalent to the methods, devices, and materials described in the examples of the present invention.

[0026] In addition, terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are used only for convenience of explanation and do not limit the scope of the present invention. As long as the technical content is not substantially changed, changes or adjustments to the relative relationships are also considered to be within the scope of the present invention.

[0027] Referring to Figures 1 to 3, the present invention provides a ceiling fixing structure and a vehicle, in which an integrally designed engagement groove and guide plate are arranged at the connection between the pillar inner panel and the ceiling side wall, thereby arranging the guide plate on the pillar inner panel and increasing the overlap area between the ceiling side wall and the inner wall of the pillar, thereby smoothly guiding the side curtain airbag to deploy through the ceiling after explosion, while also ensuring that the ceiling and connecting parts do not come off.

[0028] 1 to 3, the present invention provides a ceiling fixing structure, which includes a pillar inner panel 1100 and a ceiling 1200.

[0029] As shown in Figures 1 to 3, in the ceiling fixing structure, the pillar inner panel 1100 and the ceiling 1200 are attached to the side of the body side panel 1400 facing the interior of the vehicle, the pillar inner panel 1100 extends opposite the body side panel 1400 from the bottom to the top of the body, the side wall of the ceiling 1200 is abutted against the tip of the pillar inner panel 1100, and the side wall of the ceiling 1200 is also positioned above the pillar inner panel 1100 opposite the body side panel 1400.

[0030] Side curtain airbag 1300 is further provided between body side panel 1400 and the side wall of ceiling 1200. When side curtain airbag 1300 explodes and deploys into the vehicle interior, the side wall of ceiling 1200 is displaced into the vehicle interior due to the impact of side curtain airbag 1300. However, because the end of the side wall of ceiling 1200 is abutted against the tip of pillar inner panel 1100, the tip of pillar inner panel 1100 can avoid the displacement path of the end of the side wall of ceiling 1200. Therefore, the end of the side wall of ceiling 1200 is not obstructed by pillar inner panel 1100 during displacement, which ensures that side curtain airbag 1300 can be deployed from ceiling 1200 into the vehicle interior while preventing parts of the pillar inner panel and ceiling from being torn off and becoming detached due to the collision.

[0031] In addition, the abutting relationship between the tip of the pillar inner panel 1100 and the end of the side wall of the ceiling 1200 may be any one of sliding contact structures, and the sliding contact structure may be a flat contact structure or a circular arc surface contact structure, for example, the tip of the pillar inner panel 1100 and the end of the side wall of the ceiling 1200 are abutted via two matching flat plates.

[0032] 1 to 3, a guide plate 1110 is further provided at the tip of pillar inner panel 1100. Guide plate 1110 extends from pillar inner panel 1100 to one side of body side panel 1400. Guide plate 1110 has a curved shape, and side curtain airbag 1300 abuts against the guide surface of guide plate 1110 between body side panel 1400 and the side wall of ceiling 1200. When side curtain airbag 1300 is not detonated, it is supported by guide plate 1110 and stably positioned between the side wall of ceiling 1200 and body side panel 1400. When side curtain airbag 1300 is detonated, it is guided by guide plate 1110 and moves to the portion where the side wall of ceiling 1200 and pillar inner panel 1100 are wrapped to absorb the impact, and then inflates and pushes the side wall of ceiling 1200 into the vehicle interior, cushioning and protecting the heads of vehicle occupants. The extended end of guide plate 1110 is inserted into body side panel 1400, thereby reinforcing the structural strength of guide plate 1110 between body side panel 1400 and pillar inner panel 1100, and preventing the bag of side curtain airbag 1300 carried by guide plate 1110 from coming off ceiling 1200 when not deployed.

[0033] 2 and 3, an engagement groove 1120 is further provided at the tip of the pillar inner panel 1100. The engagement groove 1120 is located at the connection position between the guide plate 1110 and the pillar inner panel 1100, and one end of the guide plate 1110 is connected above the engagement groove 1120. The engagement groove 1120 is recessed toward one side of the inner edge of the pillar inner panel 1100, and at the position where the pillar inner panel 1100 faces the side panel 300 of the body, the engagement groove 1120 is recessed toward one side of the side panel 300 of the body. The end of the side wall of the ceiling 1200 is overlapped within the engagement groove 1120. This connection method increases the overlap area between the ceiling 1200 and the pillar inner panel 1100 and can strengthen the overlap strength between the side wall of the ceiling 1200 and the pillar inner panel 1100, thereby avoiding damage to part of the structure of the pillar inner panel when the side wall of the ceiling 1200 is overlapped.

[0034] Specifically, as shown in Figures 2 and 3, the inner wall on one side of the engagement groove 1120 is connected to the pillar inner panel 1100 and extends from the connection portion of the pillar inner panel 1100 to one side of the inner edge of the pillar inner panel 1100, and the inner wall on the other side of the engagement groove 1120 may be formed as a guide plate 1110 or may be connected to the guide plate 1110. For example, one end of the inner wall on the other side of the engagement groove 1120 is connected to the guide plate 1110, and the other end of the inner wall on the other side of the engagement groove 1120 extends to one side of the body side panel 1400 and is connected to the bottom of the engagement groove 1120.

[0035] On the other hand, a stop plate 1210 is provided at the end of the side wall of the ceiling 1200, and the shape of the stop plate 1210 matches the engagement groove 1120, and the stop plate 1210 extends to one side of the inner edge of the pillar inner panel 1100 in correspondence with the engagement groove 1120 at the end of the side wall of the ceiling 1200. When the side wall of the ceiling 1200 is attached to the pillar inner panel 1100, the side wall of the ceiling 1200 can be wrapped within the engagement groove 1120 of the pillar inner panel 1100 via the end abutment plate 1210. Specifically, the end abutment plate 1210 of the side wall of the ceiling 1200 is abutted against the inner wall of the engagement groove 1120 on the side that is connected to the pillar inner panel 1100, and the end of the side wall of the ceiling 1200 increases the abutment area with the pillar inner panel 1100 due to the close contact between the abutment plate 1210 and the inner wall of the engagement groove 1120, thereby strengthening the abutment strength between the side wall of the ceiling 1200 and the pillar inner panel 1100.

[0036] Furthermore, since the abutment plate 1210 extends to one side of the body side panel 1400 together with the engagement groove 1120, an appropriate angle can be set between the contact surface between the abutment plate 1210 and the engagement groove 1120 and the pillar inner panel 1100, thereby reducing the gradient of the lap and enhancing the stability of the lap portion. For example, in one embodiment of the present invention, the angle B between the inner wall of the engagement groove 1120 connected to one side of the pillar inner panel 1100 and the pillar inner panel 1100 is 60° to 120°, and may be, for example, 60°, 70°, 80°, 90°, 100°, 110°, or 120°.

[0037] 2, in one embodiment of the present invention, the extended end of the guide plate 1110 is inserted into an insertion groove 1410 on the inner wall of a body side panel 1400. A felt is provided on the extended end of the guide plate 1110, and the felt is adhesively attached to the extended end of the guide plate 1110. When the extended end of the guide plate 1110 is inserted into the insertion groove 1410 of the body side panel 1400, the felt covering the end of the guide plate 1110 is inserted into the insertion groove 1410 along with the guide plate 1110, and the felt is disposed within the insertion groove 1410 between the end of the guide plate 1110 and the inner wall of the insertion groove 1410, thereby blocking the transmission of vibration between the body side panel and the guide plate 1110 and avoiding the generation of resonance noise between the guide plate 1110 and the body side panel.

[0038] As shown in FIG. 2, in one embodiment of the present invention, guide plate 1110 and the side wall of ceiling 1200 form a V-shaped groove, and the V-shaped groove structure between guide plate 1110 and the side wall of ceiling 1200 can guide side curtain airbag 1300 to inflate from the overlap portion between pillar inner panel 1100 and the side wall of ceiling 1200 along gradient guide direction C when side curtain airbag 1300 explodes, and ultimately presses against the side wall of ceiling 1200 that is wrapped around pillar inner panel 1100, causing it to deploy inside the body. The angle A of the V-shaped groove between the guide plate 1110 and the side wall of the ceiling 1200 may not be limited, but in some embodiments, the angle A between the guide plate 1110 and the side wall of the ceiling 1200 may be between 40° and 90° to increase the slope of the guide plate 1110 relative to the side wall of the ceiling 1200, for example, the angle A may be 40°, 50°, 60°, 70°, 80° or 90°.

[0039] In one embodiment of the present invention, a position restriction structure is provided between the abutment plate 1210 and the engagement groove 1120, and the position restriction structure restricts sliding displacement between the abutment plate 1210 and the engagement groove 1120 in the opposing direction. For example, the position restriction structure restricts the position of the abutment plate 1210 at the overlapping surface between the abutment plate 1210 and the engagement groove 1120 as it slides toward one side of the body side panel 1400 relative to the engagement groove 1120, but does not restrict the abutment plate 1210 as it slides away from the engagement groove 1120 toward one side of the vehicle interior. The sliding direction toward one side of the body side panel 1400 is the direction in which the abutment plate 1210 slides into the engagement groove 1120, i.e., the direction in which the inner wall of the engagement groove 1120 on the side connected to the pillar inner panel 1100 extends toward one side of the body side panel 1400.

[0040] Specifically, the position restriction structure includes a guide groove and an insertion member, the guide groove being provided on the inner wall of the engagement groove 1120 on the side that overlaps the abutment plate 1210, the insertion member being provided to protrude from the bottom of the abutment plate 1210, and the shape of the insertion member matching the guide groove. The guide groove is provided as an open groove on the inner wall surface, with an opening at one end of the guide groove being provided on the outer edge of one side of the inner wall of the engagement groove 1120 that faces the interior of the vehicle, and the guide groove extends from the inner wall surface of the engagement groove 1120 to one side of the bottom of the engagement groove 1120, with the bottom of the groove body facing one side of the body side panel 1400. When the butt plate 1210 is wrapped inside the engagement groove 1120, the insertion member at the bottom of the butt plate 1210 is pressed into the guide groove on the inner wall of the engagement groove 1120, and the guide groove can guide the insertion member to slide inside the groove body. The guide groove can limit the position of the butt plate 1210 sliding toward one side of the body's side panel 1400 through the bottom of the groove body, and at the same time can guide the butt plate 1210 sliding toward one side of the vehicle interior.

[0041] In one embodiment of the present invention, the plate of the ceiling 1200 has a double layer structure. Specifically, the plate of the ceiling 1200 has a double layer structure. The double layer structure includes a fabric layer and a base layer. The fabric layer is positioned on the side of the ceiling 1200 facing the interior of the vehicle, and the base layer is attached to the fabric layer on the side facing away from the interior of the vehicle with a high-pressure adhesive. The fabric layer is formed by sequentially placing the fabric and a first foam sheet from the interior to the exterior of the vehicle. The first foam sheet is bonded to the fabric, and the material of the fabric may be knit, faux suede, PVC, or the like. The first foam sheet is a foam sheet with a frame laminated back. The base layer is formed by sequentially bonding a first glass felt, a second foam sheet, a second glass felt, a third foam sheet, a third glass felt, and a nonwoven fabric to the fabric layer, and the second and third foam sheets may be PU foam sheets. The installation of the double structure strengthened the foundation strength of the ceiling 1200, and solved the problem of insufficient strength of the double skylight integrated with the complex components of the ceiling 1200, and the problem that the adhesive tape area integrated into the ceiling 1200 was easily deformed when pressed.

[0042] The ceiling is a functional part that has a relatively large visible area within the body and can integrate multiple elements. However, the more elements are integrated, the longer the ceiling becomes. For relatively long ceilings, how to ensure the strength of the ceiling and prevent breakage or deformation during transportation and installation is an urgent issue.

[0043] Referring to Figure 4, Figure 4 shows a schematic diagram of the structure of a ceiling for an interior of a vehicle according to one embodiment of the present invention, which solves the problem that a relatively long ceiling 1200 is prone to bending during transportation when multiple functional component mounting holes of different sizes are provided. This improves the strength of the entire ceiling, makes the ceiling less susceptible to bending and damage during the entire process of transportation, packaging and installation, and improves the service life of the ceiling.

[0044] Referring to FIGS. 4 and 5, FIG. 5 shows a schematic diagram of a ceiling structure according to one embodiment of the present invention. The ceiling 1200 has a generally rectangular structure and has a certain curvature after being installed on the top of a vehicle. The ceiling 1200 is provided with multiple functional component mounting holes, allowing corresponding functional components (not shown) to be attached to meet various user needs. Specifically, the ceiling 1200 is provided with functional component mounting holes, such as a front ceiling light mounting hole 2240, a front skylight mounting hole 2230, and a rear skylight mounting hole 2210. Corresponding ambient light mounting holes 2250 are provided on both sides of the rear skylight mounting hole 2210, respectively, for integrating and mounting components such as ambient lights (not shown), reading lights (not shown), and air vents (not shown). In another embodiment of the present application, the ambient light mounting holes 2250 are cutout areas 3110 provided in the ceiling 1200. Furthermore, to provide a more comfortable environment for passengers inside the vehicle, sun visors (not shown) are attached to the front skylight mounting opening 2230 and the rear skylight mounting opening 2210 to effectively block sunlight, and a speaker mounting opening 2220 and a microphone mounting opening 2260 are provided on the edge of the rear skylight mounting opening 2210. A plurality of reinforcing frames 2200 are attached to the ceiling 1200, and each reinforcing frame 2200 is arranged to surround a corresponding functional component mounting opening, and the shape of each reinforcing frame 2200 matches the shape of the corresponding functional component mounting opening. A hot melt adhesive may be sprayed onto the side of the reinforcing frame 2200 facing the ceiling 1200, and the reinforcing frame 2200 may then be pressed against the side of the ceiling 1200 facing the roof sheet metal (not shown) to melt the adhesive. This strong pressure and adhesive force effectively ensures the rigidity of the reinforcing frame 2200 on the ceiling 1200, making the reinforcing frame 2200 less likely to come off the ceiling 1200, greatly improving vehicle safety. In particular, the ceiling of a relatively long vehicle has a relatively large number of functional component mounting holes, making it very prone to bending during transportation and installation. Therefore, by arranging the reinforcing frame 2200 at each functional component mounting hole, the rigidity of the entire vehicle ceiling is strengthened and the occurrence of bending of the ceiling is effectively reduced.

[0045] The functional components described in this embodiment include, but are not limited to, a front ceiling light, a front rooflight and its sun visors, a rear rooflight and its sun visors, an ambient light and a speaker. Those skilled in the art can adaptively add or remove corresponding functional components according to the actual needs of the vehicle, and it is understood that this is not a limitation.

[0046] 4 and 5 , in one embodiment of the present invention, the reinforcing frame 2200 is an iron reinforcing frame 2200. Compared to plastic materials, the iron reinforcing frame 2200 has good rigidity and is less likely to deform. When encountering extreme weather phenomena such as extreme cold or heat, the iron reinforcing frame 2200 does not undergo thermal expansion or contraction at these temperatures, preventing the fabric of the vehicle ceiling facing the interior from wrinkling due to thermal expansion and contraction of the reinforcing frame 2200. In addition, by arranging an iron reinforcing frame 2200 at each functional component mounting port, the vehicle ceiling can be hung on a wall via the reinforcing frame 2200 during storage, reducing the area occupied by the vehicle ceiling. At the same time, the reinforcing frame 2200 can withstand a relatively large hanging force, preventing deformation of the vehicle ceiling during hanging. The installation of an iron reinforcing frame 2200 at each functional component mounting port effectively prevents the roof from breaking during packaging, transportation, and installation, improving the rigidity of the roof. Furthermore, in one embodiment of the present invention, the reinforcing frame 2200 is a thickened reinforcing frame 2200. The thickness of the reinforcing frame 2200 is increased from the original 0.7 mm to 0.8 mm. By thickening the reinforcing frame 2200, the rigidity of the reinforcing frame 2200 can be further improved, thereby improving the rigidity of the entire vehicle roof and avoiding the problem of the reinforcing frame 2200 being easily deformed during stamping when it is relatively thin.

[0047] Referring to FIGS. 4 to 6, FIG. 6 is a schematic diagram of the roof structure from another perspective of the exterior of a vehicle according to one embodiment of the present invention. During actual use, when a person outside the vehicle presses on the edge of the roof 1200, the roof 1200 is easily dented and deformed (i.e., when viewed from inside the vehicle, the roof 1200 appears to dent toward the roof at the point of pressure), resulting in a gap between the dent and the adjacent sealing strip (not shown). This not only significantly reduces the overall aesthetic appearance of the vehicle, but also allows foreign matter such as rainwater or dust to enter the vehicle through the gap formed between the sealing strip and the dent, destroying the vehicle's sealing and polluting the interior environment. To avoid this situation, in one embodiment of the present invention, a plurality of elastic spacers 2400 are provided along the edge of the roof 1200. The elastic spacers 2400 are long strips, and a plurality of elastic spacers 2400 are arranged around the edge of the roof 1200 facing the top metal sheet. Furthermore, compared with the small elastic spacers in existing vehicles, the elastic spacer 2400 described in this application is relatively long. When a user presses the edge of the ceiling 1200, the elastic spacer 2400 at the pressed point can provide a buffering effect, preventing the ceiling 1200 from being dented and deformed at the pressed point. This effectively extends the service life of the ceiling 1200, improves the overall aesthetics of the vehicle, and effectively prevents the intrusion of foreign objects such as dust and rainwater, providing a comfortable environment for the passengers inside the vehicle. to This creates a clean driving and riding environment and improves overall vehicle comfort.

[0048] Continuing to refer to Figures 4 to 6, in order to effectively solve the problem of the gap between the edge of the ceiling 1200 and the sealing strip becoming soft when pressed, the elastic spacer 2400 should have a certain hardness and resilience. In one embodiment of the present invention, the elastic spacer 2400 has dimensions of 20 x 20 x 360 mm (i.e., the thickness, width, and length of the elastic spacer 2400 along the edge of the ceiling 1200 are 20 mm, 20 mm, and 360 mm, respectively), and is made of polyethylene. The density of the elastic spacer 2400 is 45 kg / m 3Elastic spacer 2400 having a density higher than the above range has a relatively high hardness, and therefore, when a side curtain airbag (not shown) explodes, fragments of the elastic spacer may fly into the vehicle interior and strike passengers inside, seriously endangering the safety of the passengers. Elastic spacer 2400 having a density lower than the above range is too soft and therefore cannot effectively support and cushion the ceiling 1200. It should be understood that the length of elastic spacer 2400 can be adaptively adjusted based on the length of ceiling 1200 and is not limited thereto. Furthermore, the material of elastic spacer 2400 described herein may be any other material having a certain degree of elasticity and contraction force, such as polyurethane, and is not limited thereto. The elastic spacer 2400 described in the present application is relatively low cost because it does not require excessively high-density materials, and it not only provides effective support when pressed by a user to protect the edge of the ceiling 1200 from deformation, but also prevents injury to passengers inside the vehicle when the side curtain airbag inflates, effectively reducing production costs and contributing to mass production. Furthermore, to save production steps and improve production efficiency, in one embodiment of the present invention, multiple elastic spacers 2400 have the same length. During actual production, after processing, a single strip-shaped elastic spacer can be cut into multiple elastic spacers 2400 of the same length at equal intervals, thereby reducing production costs and significantly improving production efficiency.

[0049] 4 to 6, in one embodiment of the present invention, a plurality of the elastic spacers 2400 are symmetrically attached to both edges of the ceiling 1200. The number of elastic spacers 2400 is an even number, and they are symmetrically attached to both sides of the ceiling 1200 and closely adhered to the edge between the front of the ceiling 1200 and the B-pillar, the edge between the B-pillar and the C-pillar, and the edge between the C-pillar and the rear of the ceiling 1200. That is, the elastic spacers 2400 are provided on the edges of the ceiling 1200 and positioned relatively above the side windows (not shown), thereby effectively preventing a situation in which a user outside the vehicle pushes the ceiling 1200 upward through the side windows, causing it to dent and deform. Furthermore, in another embodiment of the present invention, the elastic spacers 2400 are not provided at positions on the edges of the ceiling 1200 near the B-pillar and C-pillar. This is because the edges of the ceiling 1200 near the B-pillar and the C-pillar form arcuate surfaces with a certain curvature, and because the curvature of the arcuate surfaces is relatively large and the strength is excellent, the edges of the ceiling 1200 at these positions are less likely to dent when subjected to external force. In order to save resources for the elastic spacer 2400, and also considering the difficulty of producing elastic spacers 2400 with a bent shape, if the elastic spacer 2400 is bonded only to the relatively flat and straight edges of the ceiling 1200, it can effectively support the ceiling 1200 and prevent the edges of the ceiling 1200 from being dented and deformed when pressed by external force.

[0050] 4 to 6, in one embodiment of the present invention, the ceiling 1200 is further provided with a flip-down monitor mounting opening 2300, which is located between the two functional component mounting openings, and reinforcing bridges 2500 are attached to both sides of the flip-down monitor mounting opening 2300. A flip-down monitor mounting opening 2300 is provided between the front skylight mounting opening 2230 and the rear skylight mounting opening 2210, allowing users to watch various video programs. Specifically, in one embodiment of the present invention, the central axes of the flip-down monitor mounting openings 2300 overlap the central axes of the two adjacent functional component mounting openings, and the reinforcing bridges 2500 are distributed on both sides of the flip-down monitor mounting opening 2300 along the central axis of the flip-down monitor mounting opening 2300. The front skylight mounting opening 2230, the rear skylight mounting opening 2210, and the flip-down monitor mounting opening 2300 are all rectangular, and the three overlap one another along the longitudinal direction of the ceiling 1200 and the central axis of the front skylight mounting opening 2230, the central axis of the rear skylight mounting opening 2210, and the central axis of the flip-down monitor mounting opening 2300. Therefore, to stiffen the flip-down monitor mounting opening 2300, two reinforcing bridges 2500 can be arranged symmetrically on both sides of the flip-down monitor mounting opening 2300 along the central axis, and the reinforcing bridges 2500 can be located on the side of the flip-down monitor mounting opening 2300 facing the roof sheet metal. When assembling the flip-down monitor into the flip-down monitor mounting opening 2300, the reinforcing bridges 2500 on both sides prevent the flip-down monitor mounting opening 2300 from being excessively widened by external force, causing problems such as deformation during assembly, and effectively strengthens the rigidity of the ceiling 1200.

[0051] 4 and 5, in one embodiment of the present invention, fixing holders 2700 are attached to both sides of the front roof window mounting opening 2230. The fixing holders 2700 are square-shaped and attached to the side of the front roof window mounting opening 2230 facing the roof sheet metal. They are symmetrically distributed on both sides of the outer edge of the front roof window mounting opening 2230 along the central axis of the front roof window mounting opening 2230. The side of the fixing holder 2700 facing the roof 1200 is fixed to the roof 1200 by hot melt pressing, and the side of the fixing holder 2700 facing away from the roof 1200 is fixed to the roof sheet metal. This prevents the roof from coming off in the event of a side curtain airbag explosion, thereby enhancing vehicle safety. Furthermore, to reduce production costs, the fixing holders 2700 are provided separately from the corresponding reinforcing frame 2200. Because the fixing holder 2700 is relatively small, it can be manufactured using the remaining material after the reinforcing frame 2200 is stamped. By locating the reinforcing frame 2200 at the front roof window mounting opening 2230 separately from the fixing holders 2700 on either side of it, stamping costs are saved, thereby lowering vehicle production costs. Furthermore, this separate design allows for the convenience of replacing only the damaged component when the fixing holder 2700 or the corresponding reinforcing frame 2200 is damaged, eliminating the need for complete replacement. Furthermore, to improve the overall sound absorption and soundproofing performance of the vehicle, in one embodiment of the present invention, sound-absorbing cotton 2600 is laid in exposed areas of the ceiling 1200 where no functional components are attached, thereby absorbing external sound and achieving sound reduction.

[0052] 4 to 7, FIG. 7 is a schematic diagram of the material structure of a ceiling according to another embodiment of the present invention. The vehicle ceiling described herein is an extremely long ceiling having a relatively long length (approximately 3086 mm), and is therefore extremely prone to bending during transportation. To solve this problem, in another embodiment of the present invention, the structure of the ceiling 1200 includes a first nonwoven fabric layer 2110, a first polyurethane substrate layer 2120, a second polyurethane substrate layer 2130, a second nonwoven fabric layer 2140, and a fabric layer 2150. The first nonwoven fabric layer 2110 is provided on the side of the ceiling 1200 facing the roof sheet metal. The first polyurethane substrate layer 2120 is bound to the side of the first nonwoven fabric layer 2110 facing away from the vehicle sheet metal. The second polyurethane substrate layer 2130 is provided on the side of the first polyurethane substrate layer 2120 facing away from the first nonwoven fabric layer 2110. The second nonwoven fabric layer 2140 is bound to the side of the second polyurethane substrate layer 2130 away from the first polyurethane substrate layer 2120. The fabric layer 2150 is bound to the side of the second nonwoven fabric layer 2140 away from the second polyurethane substrate layer 2130. For an ultra-long ceiling integrated with multiple functional components, each functional component has a certain weight, so a single polyurethane substrate layer cannot accommodate many functional components and the ceiling is prone to breakage. To accommodate more functional components, two polyurethane substrate layers are required. Specifically, in one embodiment of the present invention, the first polyurethane substrate layer 2120 includes, in order, glass fiber 2101, adhesive 2102, polyurethane foam sheet 2103, adhesive 2102, and glass fiber 2101, and the second polyurethane substrate layer 2130 includes, in order, adhesive 2102, polyurethane foam sheet 2103, adhesive 2102, and glass fiber 2101. When a vehicle is traveling, especially on bumpy roads, vibrations occur between the structural members of the ceiling 1200, and the double-layer polyurethane structure formed by the first polyurethane substrate layer 2120 and the second polyurethane substrate layer 2130 can prevent damage to the structural members due to vibrations.The upper and lower layers of polyurethane foam sheet are each coated with adhesive 2102. Glass fiber 2101 is then laid on the surface of the polyurethane foam sheet 2103 coated with adhesive 2102. After the small glass fibers 2101 are bound to the surface of the polyurethane foam sheet 2103, an extremely thin glass fiber felt is formed to stiffen the polyurethane foam sheet 2103. Furthermore, to reduce production costs, glass fiber felt can be obtained directly through common commercial means and attached to both sides of the polyurethane foam sheet 2103 via adhesive 2102. Those skilled in the art can select an appropriate method to manufacture the first polyurethane substrate layer 2120 and the second polyurethane substrate layer 2130 according to actual needs; this is not required here. The adhesive 2102 can be any material with adhesive properties, such as glue, rubber cement, etc. The ceiling 1200 can also include three or more polyurethane substrate layers or multiple layers of other materials. Those skilled in the art can adaptively select methods according to actual needs; this is not limited here.

[0053] Furthermore, since the glass fiber felt is formed by bonding the glass fibers 2101 together using the adhesive 2102, the glass fibers 2101 may be either long or short glass fibers. When the glass fiber felt is made from relatively short glass fibers, the number of short glass fibers woven into a unit area during production is relatively large, making the glass fiber felt relatively hard. Correspondingly, when the glass fiber felt is made from relatively long glass fibers, the number of long glass fibers woven into a unit area during production is relatively small, making the glass fiber felt relatively soft. Therefore, the long and short glass fibers can affect the hardness of the manufactured glass fiber felt, and those skilled in the art can adaptively select glass fibers of corresponding lengths according to the actual manufacturing needs of the vehicle, and this is not limited herein.

[0054] 4 to 7 , considering that polyurethane foam sheet 2103 is relatively fluffy, laminating only first polyurethane substrate layer 2120 and second polyurethane substrate layer 2130 would occupy a relatively large amount of space within the vehicle interior. To avoid this, one embodiment of the present invention further includes, after second polyurethane substrate layer 2130 is positioned on the side of first polyurethane substrate layer 2120 away from first nonwoven fabric layer 2110, subjecting first polyurethane substrate layer 2120 and second polyurethane substrate layer 2130 to a pressing process. This pressing process further compresses the space occupied by polyurethane foam sheet 2103, ultimately making the combined thickness of first polyurethane substrate layer 2120 and second polyurethane substrate layer 2130 approximately the same as that of a conventional single-layer polyurethane substrate layer. Meanwhile, the pressing process achieves a compression and volume reduction effect, significantly increasing the usable space within the vehicle interior and providing a more comfortable riding environment for vehicle occupants. On the other hand, compared to conventional single-layer polyurethane foam sheets, the density of the pressed polyurethane foam sheet 2103 is increased, reducing the penetration of external sound into the vehicle interior and significantly improving the vehicle's NVH (Noise, Vibration, Harshness) performance. Furthermore, by pressing the first polyurethane substrate layer 2120 and the second polyurethane substrate layer 2130 together, a two-layer polyurethane structure is formed, which not only has excellent sound insulation but also excellent heat insulation, effectively blocking external heat from entering the vehicle interior. This not only improves the overall rigidity of the vehicle ceiling, but also effectively improves the vehicle's sound insulation and heat insulation performance. This creates a good driving and riding environment for vehicle occupants and effectively improves the comfort of the driver and passengers.

[0055] In addition, the ceiling of the vehicle described in this application is a one-piece structure, that is, when viewed from the direction of the passenger inside the vehicle toward the ceiling of the vehicle, there are no traces of joints, and this design method improves the aesthetic appearance of the entire vehicle while making the ceiling more sturdy.

[0056] For ease of illustration, the first nonwoven layer 2110 and the second nonwoven layer 2140 in the present application are shown to have different compositions, however, it is understood that the materials of the first nonwoven layer 2110 and the second nonwoven layer 2140 may be the same or different, and are not limited thereto. Furthermore, considering that the first nonwoven layer 2110 is close to the top of the vehicle and adjacent to multiple roof components, when the vehicle is started or in a high temperature environment, the temperature of the roof components becomes relatively high, and to prevent glue from seeping through the first nonwoven layer 2110, in one embodiment of the present invention, the density of the first nonwoven layer 2110 is greater than the density of the second nonwoven layer 120. Because the first nonwoven fabric layer 2110 is always in a high-temperature region, increasing the density of the first nonwoven fabric layer 2110 makes the entire fabric tighter and stronger, making it less susceptible to glue seepage. Meanwhile, the high-density first nonwoven fabric layer 2110 is less likely to deform under high-temperature conditions, effectively extending its service life. Furthermore, considering that the second nonwoven fabric layer 2140 is flanked by the fabric layer 2150 and the second polyurethane substrate layer 2130, respectively, the second nonwoven fabric layer 2140 is not in direct contact with the roof components. Furthermore, the higher the density of the material, the heavier it becomes, which increases costs. Therefore, taking into consideration factors such as cost and roof weight, in this embodiment, the density of the second nonwoven fabric layer 2140 is lower than the density of the first nonwoven fabric layer 130. This design not only effectively prevents the first nonwoven fabric layer 120 from being easily damaged under high temperature conditions and extends the service life of the ceiling, but also comprehensively considers factors such as production costs and the weight required for the ceiling, thereby reducing costs as much as possible while ensuring that the rigidity and strength of the ceiling are not affected.

[0057] It is understood that the first nonwoven layer 120 and the second nonwoven layer 130 may be made of materials of the same material and the same density, and those skilled in the art can adaptively select appropriate materials or densities according to actual needs, and are not limited herein.

[0058] The vehicle roof described in the present application employs a non-exposed mounting method, i.e., when viewed from inside the vehicle toward the roof, the roof is one smooth whole, with no exposed bolts or other fastening components. This mounting method not only significantly improves the overall aesthetics of the vehicle, but also satisfies vehicle safety and prevents the roof from detaching from the roof in the event of an unexpected event while driving (such as the explosion of a side curtain airbag). Furthermore, the vehicle roof described in the present application can be applied not only to ultra-long roofs such as those of MPVs (Multi-Purpose Vehicles), but also to roofs of ordinary vehicles, and is not limited thereto.

[0059] The ambient lights on MPVs (Multi-Purpose Vehicles) are usually longer than those on regular vehicles. Conventional technology typically fixes the ambient light panel to the vehicle using a single method, such as screws. However, because the ambient light panel is relatively long, it is prone to detaching from the ceiling when the side curtain airbag explodes.

[0060] 8 to 12, Fig. 8 shows a schematic diagram of the structure of a ceiling according to an embodiment of the present invention, Fig. 9 shows a bottom view of Fig. 8, Fig. 10 shows a schematic diagram of the structure after an ambient light panel has been installed in Fig. 9, Fig. 11 shows a schematic diagram of the structure of a fixing structure for an ambient light panel according to an embodiment of the present invention, and Fig. 12 shows a schematic diagram of the structure of an ambient light panel according to an embodiment of the present invention. This embodiment allows ambient light panel 3300 to be firmly fixed to vehicle ceiling 1200, effectively solving the problem of difficulty in installing and fixing ultra-long ambient light panel 3300. This prevents ambient light panel 3300 from detaching from ceiling 1200 in the event of a side curtain airbag explosion, effectively ensuring the safety of vehicle occupants and significantly improving the overall safety of the vehicle.

[0061] 8 to 12 , in one embodiment of the present application, a cutout area 3110 is provided in a ceiling 1200. Specifically, the ceiling 1200 has a generally rectangular structure and a certain curvature. A rear rooflight mounting opening 2210 is provided thereon. To further improve the passenger driving and riding experience, cutout areas 3110 are provided on both sides of the rear rooflight mounting opening 2210, and devices such as a reading lamp 3130 and an air vent 3140 may be integrated into the cutout area 3110. When the ceiling 1200 is relatively long, in consideration of improving the riding experience of rear seat passengers and the overall aesthetics of the vehicle, in this embodiment, four cutout areas 3110 are provided, symmetrically distributed on both sides of the rear rooflight mounting opening 2210. Those skilled in the art will understand that the number of cutout areas 3110 can be adaptively set according to the length of the ceiling and the production process, and this is not a limitation. The ambient light holder 3200 resembles an eyeglass frame structure, and is attached to the side of the ceiling 1200 facing the roof sheet metal and attached to the upper side of the ceiling 1200, with the ambient light holder 3200 provided along the periphery of the cutout area 3110, and part of the structure of the ambient light holder 3200 appearing within the cutout area 3110. Specifically, a panel mounting portion 3210 is provided on the edge of the ambient light holder 3200, and the panel mounting portion 3210 protrudes into the vehicle interior along the periphery of the cutout area 3110 for mounting an ambient light panel 3300. In one embodiment of the present application, the ambient light holder 3200 and the reinforcing frame 2200 at the ambient light mounting hole 2250 are integrated, i.e., the ambient light holder 3200 facilitates the installation of the ambient light panel 3210 and also serves to reinforce the strength of the cutout area 3110 of the ceiling 1200. In another embodiment of the present application, the ambient light holder 3200 and the reinforcing frame 2200 at the ambient light mounting hole 2250 are provided separately. To enhance the overall rigidity, the ambient light holder 3200 is a one-piece molded steel structure.The ambient light panel 3300 is located under the ceiling 1200, and is connected to the ambient light holder 3200 in the cutout area 3110 via a connecting member. Specifically, one end of the connecting member is connected to the side of the ambient light panel 3300 facing the ceiling 1200, and the other end of the connecting member is connected to the panel mounting portion 3210, thereby fixing the ambient light panel 3300 to the ambient light holder 3200. The shape of the ambient light panel 3300 matches the shape of the ambient light holder 3200, and the reading light 3130 and the air outlet 3140 are integrated into the ambient light panel 3300, and are exposed to the interior of the vehicle through an integrated mounting hole 3330 in the ambient light panel 3300. In this application, the upper side of the ceiling 1200 refers to the side of the ceiling 1200 that faces the top of the vehicle after the entire vehicle has been assembled, and the lower side of the ceiling 1200 refers to the side of the ceiling 1200 that faces away from the top of the vehicle.

[0062] 8 to 12 , because a side curtain airbag (not shown) is positioned between ambient light holder 3200 and the edge of ceiling 1200, the strong impact force generated when the side curtain airbag explodes can easily cause ambient light panel 3300 to detach from ceiling 1200, potentially injuring passengers inside the vehicle. To avoid this situation, in one embodiment of the present invention, the connecting member includes threaded connecting member 3410 and elastic engaging member 3420, which are respectively provided to surround the edge of ambient light panel 3300. Specifically, ambient light panel 3300 in the present application is an extremely long ambient light, with a length of approximately 1.2 meters. Therefore, a challenge is how to firmly secure such an extremely long ambient light panel 3300 to ceiling 1200 without detaching when the side curtain airbag inflates. Therefore, a plurality of elastic engagement members 3420 and a plurality of screw connection members 3410 are provided on the side of ambient light panel 3300 facing ambient light holder 3200. In the present application, the ambient light panel 3300 is firmly fixed to ambient light holder 3200 by using two different methods, namely screw connection and elastic engagement, which not only effectively solves the problem of difficulty in fixing an extremely long ambient light, but also prevents the ambient light panel 3300 from being separated from ceiling 1200 due to a relatively large impact force when a side curtain airbag explodes, thereby preventing potential safety issues, and thereby greatly improving the safety performance of the entire vehicle.

[0063] 8 and 11 to 13, FIG. 13 is a structural schematic diagram of an ambient light panel according to an embodiment of the present invention, viewed from another perspective. The elastic engaging member 3420 may be attached to the ambient light holder 3200, and engaging holes (not shown) may be provided at corresponding positions on the ambient light panel 3300. Alternatively, the elastic engaging member 3420 may be attached to the ambient light panel 3300, and engaging holes may be provided at corresponding positions on the ambient light holder 3200. However, in consideration of the aesthetics of the vehicle and to avoid exposed mounting marks, in one embodiment of the present invention, the ambient light holder 3200 is provided with engaging holes, and the ambient light panel 3300 is provided with elastic engaging members 3420, which engage within the engaging holes. Specifically, a plurality of engaging holes are provided on the side of the ambient light holder 3200 facing the ambient light panel 3300, and the positions of the engaging holes correspond to the positions of the elastic engaging members 3420. When installing the ambient light panel 3300, after aligning each elastic engaging member 3420 with the corresponding engaging hole, the installer lifts the ambient light panel 3300 upward (i.e., toward the top of the vehicle) and inserts the locking portions of the elastic engaging members 3420 into the engaging holes to initially secure the ambient light panel 3300 to the ambient light holder 3200. Furthermore, from the perspective of the passengers inside the vehicle, there are no mounting marks on the surface of the ambient light panel 3300 (i.e., the side of the ambient light panel 3300 facing the passengers inside the vehicle), which enhances the overall aesthetic appearance while preventing the engaging holes in the ambient light panel 3300 from receiving a relatively large impact force during a side curtain airbag explosion, which could tear the ambient light panel 3300 and injure the passengers inside the vehicle. This design also makes installation easier for the installer and improves installation efficiency.

[0064] 8 and 11 to 13, in one embodiment of the present invention, the elastic engagement member 3420 includes a double elastic buckle 3422 and a single elastic buckle 3421, which are attached to opposite sides of the ambient light panel 3300. The double elastic buckle 3422 and the single elastic buckle 3421 are respectively provided on the side of the ambient light panel 3300 facing the ambient light holder 3200, and the elastic fastening portions 3423 corresponding to the double elastic buckle 3422 and the single elastic buckle 3421 are both extended to one side of the ambient light holder 3200. After the ambient light panel 3300 is fastened to the ambient light holder 3200, there are no attachment marks on the ambient light panel 3300 when viewed from the direction of the passengers inside the vehicle, thereby improving the aesthetics and safety of the entire vehicle. Furthermore, in consideration of the strength of the connection, the double elastic buckle 3422 and the single elastic buckle 3421 are integrally manufactured with the ambient light panel 3300 by injection molding.

[0065] 8, 10, and 11 to 14, FIG. 14 is a partially enlarged view of an ambient light panel according to an embodiment of the present invention. The double elastic buckle 3422 has a stronger fastening force than the single elastic buckle 3421, but it also takes up more space. Considering the need to arrange a wire harness (not shown) near the ambient light panel 3300 and the need to integrate and install additional components such as the air vent 130 within the ambient light panel 3300, in order to provide sufficient installation space for each component, in one embodiment of the present invention, multiple double elastic buckles 3422 are provided, and the multiple double elastic buckles 3422 are attached to the side of the ambient light panel 3300 away from the edge of the ceiling 1200, with a certain distance between adjacent double elastic buckles 3422. When the ambient light panel 3300 needs to be installed, the two elastic buckles 3422 are aligned with the corresponding holes, and the ambient light panel 3300 is lifted up. The two elastic locking portions 3423 of the two elastic buckles 3422 are pressed by the holes and contract inward. After passing through the holes, the two elastic locking portions 3423 are released and expand outward, thereby locking the ambient light panel 3300 to the ambient light holder 3200. Furthermore, this design method provides sufficient installation space for each component. in advance Not only is it retained, but the elastic buckles 3422 on both sides are arranged relatively densely on the side of the ambient light panel 3300 that is away from the edge of the interior panel, so that when the side curtain airbag explodes, the ambient light panel 3300 is subjected to a relatively large impact force and is lifted up from above, preventing the ambient light panel 3300 from breaking away from its original fixed position and causing injury to the passengers inside the vehicle, thereby greatly improving the safety of the vehicle.

[0066] 8, 10, 11 to 16, Fig. 15 is a structural schematic diagram of a double elastic buckle according to an embodiment of the present invention, and Fig. 9 is a structural schematic diagram of a double elastic buckle connected to an ambient light holder according to an embodiment of the present invention. In this embodiment of the present invention, a light case 3310 and a back case 3320 are provided on the side of the ambient light panel 3300 facing the ambient light holder 3200, and the double elastic buckle 3422 includes a first double elastic buckle 34221 and a second double elastic buckle 34222, a plurality of first double elastic buckles 34221 are attached to the light case 3310, and a plurality of second double elastic buckles 34222 are attached to the back case 3320, and the first double elastic buckles 34221 and the second double elastic buckles 34222 open and close in different directions. Specifically, a light source 3311 is installed in the light case 3310 to achieve different lighting effects, and the light source 3311 may be any component with a lighting effect, such as a straight fluorescent lamp or a strip light. After the entire vehicle is assembled, the ambient light holder 3200 has a corresponding storage space (not shown), and the light case 3310 is located in a relatively large storage space. The opening and closing manner of the first double elastic buckle 34221 thereon is designed not to interfere with the installation and assembly of other components. Therefore, with respect to the first double elastic buckle 34221 attached to the light case 3310, its two elastic locking portions 3423 open and close along the width direction of the light case 3310. Meanwhile, components such as the air outlet 130 must be integrated and attached to the back case 3320, and are limited by the position of the air outlet 130. Considering that the gap between adjacent components must meet standards, if the opening and closing direction of the second double elastic buckle 34222 is the same as that of the first double elastic buckle 34221 in the original position, it will occupy the original space of the light case 3310, making it impossible to install the light case 3310. If the second double elastic buckle 34222 is moved toward the air outlet 130, it will be too close to the air outlet 130 and will be easily damaged during assembly.Therefore, taking all the above factors into consideration, with regard to the second double elastic buckle 34222 attached to the rear case 3320, its two elastic locking portions 3423 open and close along the longitudinal direction of the rear case 3320, and the second double elastic buckle 34222 is arranged close to the direction of the light case 3310. Furthermore, the straight line along which the first double elastic buckle 34221 opens and closes is perpendicular to the straight line along which the second double elastic buckle 34222 opens and closes, ensuring that the ambient light panel 3300 is subjected to the engaging force at different angles, so that the ambient light panel 3300 is firmly fixed by the ambient light holder 3200 and is less likely to fly out when the side curtain airbag explodes.

[0067] 8, 10, and 11 to 16, in one embodiment of the present invention, a bent portion 3220 is formed on the side of the ambient light holder 3200 that contacts the rear case 3320. Specifically, the ambient light holder 3200 is bent on the side that contacts the rear case 3320 adjacent to the light case 3310, and the bent end surface is in contact with the rear case 3320. As a result, when the side curtain airbag explodes, the bent end surface can effectively absorb the impact force received by the ambient light holder 3200, achieving a vibration absorption effect. When the ambient light holder 3200 receives a force, it swings and disengages the elastic engaging member 3420 from the engaging hole, thereby avoiding unstable engagement of the ambient light panel 3300 and the risk of it popping out. This allows the ambient light panel 3300 to be firmly fixed by the ambient light holder 3200, ensuring vehicle safety while effectively improving the vehicle's NVH (Noise, Vibration, Harshness) performance and enhancing the driving and riding experience for passengers.

[0068] 8, 10, 11 to 14, and 17, Fig. 17 is a schematic diagram of the structure of a one-sided elastic buckle and an ambient light holder connected together according to one embodiment of the present invention. In one embodiment of the present invention, there are a plurality of one-sided elastic buckles 3421, which are attached to the side of the ambient light panel 3300 that is closer to the edge of the ceiling 1200, with a certain distance between two adjacent one-sided elastic buckles 3421. Each one-sided elastic buckle 3421 has one elastic fastening portion 3423, which widens toward the edge of the ceiling 1200. When installing, align the one-sided elastic buckle 3421 with the corresponding engagement hole, then lift the ambient light panel 3300 upward, and the elastic locking portion 3423 of the one-sided elastic buckle 3421 is pressed against the engagement hole and contracts inward. After passing through the engagement hole, the elastic locking portion 3423 is released and expands outward, thereby locking the ambient light panel 3300 to the ambient light holder 3200 and realizing the engagement and fixation between the ambient light panel 3300 and the ambient light.

[0069] 8, 10, 12-14, and 18-19, FIG. 18 is a structural schematic diagram of a tapping screw according to an embodiment of the present invention, and FIG. 12 is a structural schematic diagram of a connection between a tapping screw and an ambient light holder according to an embodiment of the present invention. Because the side curtain airbag is located between the edge of ceiling 1200 and ambient light panel 3300, a great impact force is generated when the side curtain airbag explodes. The impact force easily causes ambient light panel 3300, which is located above the side curtain airbag, to separate from ambient light holder 3200. To avoid this situation, in one embodiment of the present invention, threaded connection member 3410 includes a plurality of tapping screws, and ambient light panel 3300 is fixed to ambient light holder 3200 via the plurality of tapping screws. The fastening force of the tapping screws is much greater than that of the elastic engagement member 3420, so that the ambient light panel 3300 can be more firmly fixed to the ambient light holder 3200. Specifically, the ambient light panel 3300 is provided with an integrated mounting hole 3330, onto which the air vent 3140 and the reading light 3130 are integrally mounted. A plurality of tapping screws are provided along the edge of the integrated mounting hole 3330, and are screwed into and fixed to the ambient light holder 3200 during installation. Furthermore, considering that the engagement force of the one-sided elastic buckle 3421 is relatively weak, a larger number of tapping screws can be provided on the side of the integrated mounting hole 3330 closer to the side curtain airbag to ensure that the air vent 3140 and the reading light 3130 are firmly fixed to the ceiling 1200. Furthermore, economy is a key factor in vehicle production and must also be taken into consideration. Tapping screws have better fastening strength than elastic engaging member 3420, but require higher costs. Therefore, taking all factors into consideration, more tapping screws can be arranged on the side of integrated mounting hole 3330 closer to the side curtain airbag, and fewer tapping screws can be arranged on the side of integrated mounting hole 3330 away from the side curtain airbag.The tapping screw, together with the double elastic buckle 3422 and the single elastic buckle 3421, firmly fixes the ambient light panel 3300 to the ceiling 1200, effectively eliminating the risk of the ambient light panel 3300 flying out when the side curtain airbag explodes, and achieving a balance of convenience, reliability, safety and economy, contributing to mass production.

[0070] 8, 10, 12-14, 18-19, the minimum distance requirement for static components requires that the distance between two adjacent components be at least 5 mm. Therefore, the distance d1 between the extension line a of the ambient light holder 3200 and the end face of the light case 3310 is less than 5 mm, which does not meet the minimum distance requirement for static components. This can result in friction between the light case 3310 and the ambient light holder 3200, which can easily cause noise. To avoid this, in one embodiment of the present invention, the ambient light holder 3200 above the light case 3310 is shaped like a square. The distance d2 between the extension surface 3230 of the ambient light holder 3200 and the end face of the light case 3310 is 8 mm. The two connecting surfaces 3240 of the ambient light holder 3200 are connected to the end faces of the adjacent ambient light holder 3200, and the connecting angle α satisfies the minimum angle requirement of the process R. While minimizing the occupied space, the distance between the ambient light holder 3200 and the end face of the light case 3310 satisfies the minimum distance requirement for static components, thereby effectively preventing the generation of abnormal noise.

[0071] 8 to 11, in one embodiment of the present invention, a hot melt adhesive connection (not shown) is provided between the ambient light holder 3200 and the ceiling 1200. The hot melt adhesive connection is coated with hot melt adhesive to achieve a fixed connection between the ambient light holder 3200 and the ceiling 1200 via the hot melt adhesive connection. The hot melt adhesive connection may be provided on the side of the ceiling 1200 facing the ambient light holder 3200, or on the side of the ambient light holder 3200 facing the ceiling 1200. In consideration of convenience in installation and manufacturing, in one embodiment of the present invention, the hot melt adhesive connection is provided on the ambient light holder 3200, and the ambient light holder 3200 is attached to the side of the ceiling 1200 facing away from the ambient light panel 3300 via the hot melt adhesive connection. By bonding the ambient light holder 3200 and the ceiling 1200 together, the ambient light holder 3200 is firmly fixed to the ceiling 1200 and the ambient light holder 3200 is prevented from coming off the ceiling 1200.

[0072] 8 to 10 and 20, Fig. 20 shows a structural schematic diagram of a shielding frame and an ambient light holder according to one embodiment of the present invention. In this embodiment, shielding frame 3600 is provided between ambient light holder 3200 and side curtain airbag generator 3500. Shielding frame 3600 is L-shaped and is hung on the side of ambient light holder 3200 facing side curtain airbag generator 3500. After the side curtain airbag explodes, shielding frame 3600 effectively guides the deployment direction of the side curtain airbag and can resist part of the impact force of the side curtain airbag, protecting components such as ambient light panel 3300 and reading light 140 from being thrown out.

[0073] In this embodiment, the ambient light holder is attached to the upper side of the ceiling, the ambient light panel is attached to the lower side of the ceiling, and the ambient light panel and the ambient light holder are fixedly connected via connecting members. For ultra-long ambient light panels, they can be firmly fixed to the ambient light holder via the threaded connecting members and the elastic engaging members, effectively solving the problem of difficulty in installing and fastening ultra-long ambient light panels. Furthermore, in the event of a side curtain airbag explosion, the strong fastening force of the threaded connecting members and the engaging force of the elastic engaging members prevent the ambient light panel from coming off, effectively ensuring the safety of vehicle occupants and significantly improving the overall safety of the vehicle.

[0074] In one embodiment of the present invention, the present invention further provides a vehicle, which is provided with the ceiling fixing structure described in any one of the above embodiments, and further includes a brake system (not shown), a steering control system (not shown), interior components (not shown), a vehicle floor (not shown), etc. Note that other structures of the vehicle, such as the brake system, the steering control system, etc., are all conventional technologies and are well known to those skilled in the art, so the other structures of the vehicle will not be described in detail herein.

[0075] The ceiling fixing structure and vehicle of the present invention have a rigid guide plate at the connection between the pillar inner panel and the ceiling side wall, which guides the side curtain airbag to deploy through the ceiling in a guide direction in the event of an explosion. At the same time, an engagement groove is provided at the connection between the pillar inner panel and the ceiling side wall, which allows the edge of the ceiling side wall to abut against the engagement groove of the pillar inner panel, increasing the connection area and ensuring the strength of the connection between the ceiling and the pillar inner panel and preventing partial fracture of the pillar inner panel structure. This ceiling fixing structure has an integrated structure of the pillar inner panel, engagement groove, and guide plate, which ensures its strength with a simple structure, while guiding the side curtain airbag to deploy smoothly and preventing the ceiling and connecting parts from coming loose in the event of an explosion. Therefore, the present invention effectively overcomes several practical problems in the prior art and is therefore highly useful and meaningful.

[0076] The above-described embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art can modify or change the above-described embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by a person of ordinary skill in the art without departing from the spirit and technical idea disclosed in the present invention are still intended to be included in the scope of the claims of the present invention. [Explanation of symbols]

[0077] 1100 Pillar inner panel 1110 Guide plate 1120 Engagement groove 1200 ceiling 1210 Buttboard 1300 Side curtain airbags 1400 body side panel 1410 Insertion groove 2101 Glass fiber 2102 Adhesives 2103 Polyurethane foam sheet 2110 First nonwoven layer 2120 First polyurethane substrate layer 2130 Second polyurethane substrate layer 2140 Second nonwoven layer 2150 fabric layer 2200 Reinforcement Frame 2210 Rear skylight mounting port 2220 Speaker mounting port 2230 Front skylight mounting port 2240 Front ceiling light mounting port 2250 Ambient light mounting port 2260 Microphone mounting port 2300 Flip-down monitor mounting port 2400 Elastic Spacer 2500 Reinforced Bridge 2600 Sound-absorbing cotton 2700 Fixed Holder 3110 Hollowed-out area 3130 Reading Light 3140 Exhaust port 3200 Ambient Light Holder 3210 Panel mounting part 3220 Bending part 3230 Extended surface 3240 connection surface 3300 Ambient Light Panel 3310 Light Case 3311 luminous body 3320 Back Case 3330 Integrated Mounting Holes 3410 Threaded connection members 3420 Elastic engagement member 3421 One-sided elastic buckle 3422 Double elastic buckle 34221 First double elastic buckle 34222 Secondary elastic buckle on both sides 3423 Elastic locking part 3500 Side curtain airbag generator 3600 shield frame

Claims

1. A ceiling that is attached to the inside of the body's side panel, a pillar inner panel attached to the inside of a side panel of the body; a side curtain airbag provided between a side panel of the body and a ceiling side wall, The end of the side wall of the ceiling and the tip of the pillar inner panel are butted against each other, and the space between the ceiling and the pillar inner panel is arranged so that when the end of the side wall of the ceiling is displaced into the vehicle interior due to the action of the impact of the side curtain airbag, the tip of the pillar inner panel can avoid the displacement path of the end of the side wall of the ceiling. A ceiling fixing structure characterized by:

2. An engagement groove is provided at the tip of the pillar inner panel, the engagement groove is recessed to one side of the inner edge of the pillar inner panel, and the end of the side wall of the ceiling is butted into the engagement groove.

2. The ceiling fixing structure according to claim 1.

3. A butting plate is provided at an end of the side wall of the ceiling, and the butting plate is butted against the inner wall of the engagement groove on the side that is connected to the pillar inner panel.

3. The ceiling fixing structure according to claim 2.

4. a position restriction structure is provided between the abutment plate and the engagement groove, and the position restriction structure restricts displacement of the abutment plate and the engagement groove when sliding against each other; 4. The ceiling fixing structure according to claim 3.

5. The position restriction structure includes a guide groove and an insertion member, the guide groove is provided on the inner wall on one side of the engagement groove, the insertion member is provided on the abutment plate, the guide groove extends to one side of the groove bottom of the engagement groove on the inner wall surface, the opening of the guide groove is provided on the outer edge of the engagement groove on the side facing the interior of the vehicle, and the insertion member is slid into and engaged with the guide groove by the guide of the groove body of the guide groove.

5. The ceiling fixing structure according to claim 4.

6. The ceiling includes a double structure.

2. The ceiling fixing structure according to claim 1.

7. A guide plate is further provided at the tip of the pillar inner panel, the guide plate is connected to an upper portion of the engagement groove, the guide plate extends from the pillar inner panel toward the side panel of the body, and the extending end of the guide plate is inserted into the side panel of the body.

3. The ceiling fixing structure according to claim 2.

8. The extended end of the guide plate is inserted into the insertion groove of the side panel of the body, and a felt is provided on the end of the guide plate.

8. The ceiling fixing structure according to claim 7.

9. The guide plate and the side wall of the ceiling form a V-shaped groove.

8. The ceiling fixing structure according to claim 7.

10. The ceiling is provided with a plurality of functional component mounting openings, A plurality of reinforcing frames are further attached to the ceiling, each of which surrounds a corresponding functional component mounting opening; The shape of each of the reinforcing frames is adapted to the shape of the corresponding functional component mounting opening.

2. The ceiling fixing structure according to claim 1.

11. A plurality of elastic spacers are provided along the edge of the ceiling, and the plurality of elastic spacers are symmetrically adhered to the edges of both sides of the ceiling, and the lengths of the plurality of elastic spacers are the same.

11. The ceiling fixing structure according to claim 10.

12. The ceiling is further provided with a flip-down monitor mounting opening, the flip-down monitor mounting opening being located between the two functional component mounting openings, and a reinforcing bridge is attached to both sides of the flip-down monitor mounting opening, the central axis of the flip-down monitor mounting opening overlaps with the central axis of each of the two adjacent functional component mounting openings, and the reinforcing bridge is distributed on both sides of the flip-down monitor mounting opening along the central axis of the flip-down monitor mounting opening.

11. The ceiling fixing structure according to claim 10.

13. The ceiling has a cutout area; The ceiling fixing structure is an ambient light holder provided along the edge of the cutout area, with a portion of its structure appearing within the cutout area and tightly joined to the upper side of the ceiling; an ambient light panel located under the ceiling and connected to the ambient light holder in the hollowed-out area via a connecting member; 2. The ceiling fixing structure according to claim 1.

14. The connecting member includes a screw connecting member and an elastic engaging member, and the screw connecting member and the elastic engaging member are respectively provided around the periphery of the ambient light panel.

14. The ceiling fixing structure according to claim 13.

15. A ceiling fixing structure according to any one of claims 1 to 14, A vehicle characterized by:

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