Vehicle roof trim panel assembly and vehicle

Abstract

The invention discloses a vehicle roof trim panel assembly and a vehicle, and belongs to the technical field of design and manufacturing of vehicle interior trim parts. The vehicle ceiling trim panel assembly comprises a first ceiling trim panel and a second ceiling trim panel, the first ceiling trim panel is located in the area close to the side wall of a vehicle body, and the end of the second ceiling trim panel is in lap joint with the side, away from the side wall of the vehicle body, of the first ceiling trim panel. A weakening groove extending in the front-back direction of the automobile body is formed in the second ceiling decoration plate, and the weakening groove and the end, in lap joint with the first ceiling decoration plate, of the second ceiling decoration plate are arranged at intervals. The problem that passengers have safety risks when an air curtain is exploded due to the fact that an existing vehicle roof is unreasonable in structural design is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle interior parts, and particularly relates to a vehicle ceiling trim panel assembly. Background Art

[0002] When a vehicle has an accident, the airbag and curtain in the vehicle can effectively protect the lives of the vehicle occupants. Therefore, when designing a vehicle, the positions and numbers of the airbag and curtain are reasonably arranged according to the impact forces from various directions during a collision.

[0003] The side airbag and curtain of a vehicle usually pop out to cover the window during a collision to achieve the effect of protecting passengers. Currently, in the third row of a six-seater vehicle, due to the movement envelope of the rear wheel occupying the interior space of the vehicle, the shape of the rear side wall is compressed into the vehicle due to space limitations, resulting in the air curtain layout position being far from the boundary of the rear ceiling. As Figure 6 shown, when the side air curtain of the vehicle detonates during a side collision, the edge area of the ceiling rotates and unfolds along the weakening groove. Due to its large rotation radius, there is a risk of hitting the heads of the third-row passengers; and the large rotation radius of the unfolded part results in a large weight, increasing the difficulty of the air curtain unfolding. There is a situation of air curtain unfolding delay, so it is necessary to appropriately increase the weight of the gunpowder of the detonator. However, at low temperatures, the ceiling material becomes brittle and has poor toughness. Increasing the weight of the gunpowder of the detonator will increase the detonation force, easily causing the ceiling to tear and generate flying objects in a low-temperature state, posing a risk of harm to passengers. Summary of the Invention

[0004] The technical problem to be solved by the present invention is the problem that the unreasonable design of the existing vehicle ceiling structure leads to safety risks for passengers when the air curtain detonates. For this reason, the present invention proposes a vehicle ceiling trim panel assembly and a vehicle with a relatively high safety factor.

[0005] In view of the above technical problems, the present invention provides the following technical solutions:

[0006] A vehicle ceiling trim panel assembly includes: a first ceiling trim panel and a second ceiling trim panel. The first ceiling trim panel is located in the area close to the vehicle body side wall. The end of the second ceiling trim panel overlaps the side of the first ceiling trim panel away from the vehicle body side wall, and a weakening groove extending in the front-rear direction of the vehicle body is provided on the second ceiling trim panel. The weakening groove is spaced from the end of the second ceiling trim panel overlapping the first ceiling trim panel.

[0007] In some embodiments of the present invention, along the left-right direction of the vehicle body, the distance L1 between the edge of the first ceiling trim panel and the vehicle body side wall is 1 / 3 - 1 / 2 of the distance L2 between the weakening groove and the vehicle body side wall.

[0008] In some embodiments of the present invention, the first ceiling trim panel is inclined with respect to the horizontal direction, and the side of the first ceiling trim panel that is connected to the second ceiling trim panel is lower than the side of the first ceiling trim panel that is close to the vehicle body side wall.

[0009] In some embodiments of the present invention, the second ceiling trim panel is inclined with respect to the horizontal direction in a partial area close to the first ceiling trim panel, and the side of the second ceiling trim panel that is connected to the first ceiling trim panel is lower than the side of the second ceiling trim panel that is away from the vehicle body side wall.

[0010] In some embodiments of the present invention, the second ceiling trim panel includes a main body area, a lapping area that lappingly cooperates with the first ceiling trim panel, and a transition area between the main body area and the lapping area, and the thickness of the lapping area is lower than the thickness of the main body area.

[0011] In some embodiments of the present invention, the transition area is formed into a bending part with a concave upper surface and a convex lower surface.

[0012] In some embodiments of the present invention, the width w1 of the lapping area in the left-right direction of the vehicle body is 1 / 10 - 1 / 6 of the width w0 of the first ceiling trim panel in the left-right direction of the vehicle body.

[0013] In some embodiments of the present invention, the first ceiling trim panel and the second ceiling trim panel are respectively installed on the vehicle body sheet metal at the top of the vehicle. Among them, the first ceiling trim panel is connected to the vehicle body sheet metal through a first clamping component and a second clamping component, and the maximum tensile force that the first clamping component can withstand is greater than the maximum tensile force that the second clamping component can withstand.

[0014] In some embodiments of the present invention, the first clamping component includes a first buckle mounting seat on the top surface of the first ceiling trim panel and an explosion-proof buckle clamped on the first buckle mounting seat. The explosion-proof buckle includes a main body part and a first clamping part and a second clamping part respectively located on both sides of the main body part. The first clamping part is inserted into the inner side of the first buckle mounting seat, and an anti-disengagement hook is provided at the end of the first clamping part.

[0015] The present invention also provides a vehicle, including the above-mentioned ceiling trim panel assembly and an air curtain assembly. The air curtain assembly is installed on the vehicle body sheet metal and is located in the area above the ceiling trim panel assembly.

[0016] The technical solution of the present invention has the following technical effects compared with the prior art:

[0017] In the vehicle ceiling trim panel assembly and the vehicle provided by the present invention, it includes a first ceiling trim panel close to the vehicle body side wall and a second ceiling trim panel lapped on the first ceiling trim panel; when the side curtain of the vehicle explodes during a side impact, under the action of the explosion force of the side curtain assembly, the end area of the second ceiling trim panel is separated from the first ceiling trim panel under the action of the side curtain explosion force, and part of the panel surface rotates downward around the weakening groove; the rotation radius is the distance between the weakening groove of the second ceiling trim panel and its end, which is less than the distance between the weakening groove of the second ceiling trim panel and the vehicle body side wall, so that the rotation radius is smaller, which can avoid the second ceiling trim panel hitting the passenger's head when the side curtain explodes, and at the same time can avoid the problem that the increased weight in this area leads to an increase in the difficulty of side curtain deployment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following will describe in detail the preferred embodiments of the present invention with the help of the drawings, which will help to understand the purpose and advantages of the present invention, wherein:

[0019] Figure 1 is a schematic structural diagram of a specific embodiment of the vehicle ceiling trim panel assembly provided by the present invention;

[0020] Figure 2 is another schematic structural diagram of a specific embodiment of the vehicle ceiling trim panel assembly provided by the present invention;

[0021] Figure 3 is a schematic structural diagram of a specific embodiment of the first ceiling trim panel provided by the present invention;

[0022] Figure 4 is a schematic structural diagram of a specific embodiment of the first buckle assembly provided by the present invention;

[0023] Figure 5 is a schematic structural diagram of a specific embodiment of the explosion-proof buckle provided by the present invention;

[0024] Figure 6 is a schematic structural diagram of the ceiling trim panel of a prior art vehicle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following will clearly and completely describe the technical solutions of the present invention with reference to the drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0026] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0028] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0029] As Figure 1 , Figure 2 As shown in the figure, a specific embodiment of the vehicle ceiling trim panel assembly provided by the present invention is shown. The ceiling trim panel assembly is connected to the body sheet metal (not shown in the figure) and forms the ceiling part of the vehicle interior trim panel. The ceiling trim panel assembly includes a first ceiling trim panel 10 and a second ceiling trim panel 20. The first ceiling trim panel 10 is located in the area close to the vehicle body side wall 30. The end of the second ceiling trim panel 20 overlaps on the side of the first ceiling trim panel 10 away from the vehicle body side wall 30, that is, a partial area of the end of the second ceiling trim panel 20 abuts against a partial area of the end of the first ceiling trim panel 10 with an overlap, and a split seam A extending in the front-rear direction is formed therebetween. A weakening groove 20a extending in the vehicle body front-rear direction is provided on the second ceiling trim panel 20, and the weakening groove 20a is spaced from the end of the second ceiling trim panel 20 that overlaps the first ceiling trim panel 10.

[0030] The above-mentioned ceiling trim assembly is applied to a vehicle, especially to the rear area of a vehicle with more than three rows of seats; when the side curtain airbag explodes in this area of the vehicle, under the action of the explosion force of the airbag, a part of the plate surface in the end area of the second ceiling trim 20 rotates downward around the weakening groove 20a. Since the end of the second ceiling trim 20 is lapped on the first ceiling trim 10, it disengages from the first ceiling trim 10 under the action of the explosion force of the airbag. The rotation radius of this area of the second ceiling trim 20 is small, which can avoid the second ceiling trim 20 hitting the passenger's head when the airbag explodes, and at the same time can avoid the problem of increased difficulty in deploying the airbag due to excessive weight in this area.

[0031] Specifically, in one implementation, as Figure 3 shown, the first ceiling trim 10 is connected to the vehicle body sheet metal through a first clamping assembly 50 and a second clamping assembly 70. Among them, the first clamping assembly 50 is an explosion-proof clamping structure, and the second clamping assembly 70 is a normal clamping structure. Among them, the first clamping assembly 50 using the explosion-proof buckle 52 can withstand a maximum tensile force of 700N; while the second clamping assembly 70 using the normal buckle 72 can withstand a tensile force in the range of 100N - 150N; usually, the acting force on the first ceiling trim 10 when the airbag explodes is between 150N - 500N. Under the action of the airbag explosion force, the second clamping assembly 70 can be broken, and the first clamping assembly 50 can continue to maintain the clamping to prevent the first ceiling trim 10 from falling.

[0032] More specifically, as Figure 4 shown, at least one first buckle mounting seat 51 is provided on the top surface of the first ceiling trim 10. The first buckle mounting seat 51 is configured to have a portal frame structure, and its upper surface has a perforation 51a suitable for mounting the explosion-proof buckle 52. Among them, the longitudinal section of the first buckle mounting seat 51 is formed into a trapezoidal frame structure with a narrow upper part and a wide lower part to improve the support strength of the first buckle mounting seat 51; more specifically, a number of reinforcing ribs 51b are also provided in the area where the side wall of the first buckle mounting seat 51 is connected to the first ceiling trim 10, further improving the connection strength between the first buckle mounting seat 51 and the first ceiling trim 10.

[0033] Among them, as Figure 5As shown, the explosion-proof buckle 52 includes a main body portion 521, a first clamping portion 522 and a second clamping portion 523 respectively located on both sides of the main body portion 521. The first clamping portion 522 is inserted into the inner side of the portal frame of the first buckle mounting seat 51, and an anti-disengagement hook 524 is provided at the end of the first clamping portion 522. The second clamping portion 523 is used for clamping with the vehicle body sheet metal. When the airbag is triggered by a side impact on the vehicle, when a partial area of the second ceiling trim panel 20 moves downward around the weakening groove 20a under the action of the airbag, the first ceiling trim panel 10 is subjected to a downward acting force. The anti-disengagement hook 524 of the above explosion-proof buckle 52 can prevent the first ceiling trim panel 10 from disengaging from the vehicle body sheet metal.

[0034] Specifically, as Figure 3 shown, at least one second buckle mounting seat 71 is further provided on the top surface of the first ceiling trim panel 10. The second buckle mounting seat 71 is used for connecting a common buckle 72. In an optional implementation manner, the second buckle mounting seats 71 are arranged at intervals along the extension direction of the ceiling trim panel (i.e., the front-back direction of the vehicle body), and 2, 3, 5 or more can be configured according to different vehicle body lengths. When the airbag is triggered by a side impact on the vehicle, when a partial area of the second ceiling trim panel 20 moves downward around the weakening groove 20a under the action of the airbag, the first ceiling trim panel 10 is subjected to a downward acting force, and the common buckle 72 on the first ceiling trim panel 10 breaks or disengages from the through hole 51a of the second buckle mounting seat 71, so that the airbag can reliably extend from the gap between the first ceiling trim panel 10 and the second ceiling trim panel 20 to protect the head area of the occupant.

[0035] Specifically, as Figure 3 shown, in order to facilitate the reliable positioning connection between the first ceiling trim panel 10 and the vehicle body sheet metal, a connection positioning assembly 80 is further provided therebetween. Specifically, the connection positioning assembly 80 includes at least one positioning connection seat 81 provided on the first ceiling trim panel 10, at least one positioning connection hole (not shown in the figure) provided on the vehicle body sheet metal, and a positioning pin 82 penetrating through the positioning connection seat 81 and the positioning connection hole. When installing the first ceiling trim panel 10, first align the positioning pin 82 with the positioning insertion hole of the vehicle body sheet metal and insert and fix it, and then realize the reliable installation and fixation of the two through the first clamping assembly 50 and the second clamping assembly 70.

[0036] Specifically, the second ceiling trim panel 10 is connected to the vehicle body sheet metal through a third clamping assembly (not shown in the figure). The third clamping assembly is a common clamping structure. That is, when the airbag is triggered during a side impact of the vehicle, a partial area of the second ceiling trim panel 20 close to the vehicle body side wall 30 can be disconnected from the connection with the vehicle body sheet metal under the action of the airbag, and the common fasteners 72 on the second ceiling trim panel are broken or disengaged, so that the airbag can reliably protrude from the gap between the first ceiling trim panel 10 and the second ceiling trim panel 20 to protect the head area of the occupant.

[0037] Specifically, along the left - right direction of the vehicle body, that is Figure 1 in the direction of the arrow a shown, the distance L1 between the edge of the first ceiling trim panel 10 and the vehicle body side wall 30 is between 65 mm and 80 mm, and the distance L2 between the weakened groove 20a and the vehicle body side wall 30 is between 150 mm and 180 mm. That is, the distance L1 between the edge of the first ceiling trim panel 10 and the vehicle body side wall 30 is 1 / 3 - 1 / 2 of the distance L2 between the weakened groove 20a and the vehicle body side wall 30. Among them, the vehicle body side wall 30 is a relative reference object, which can be an interior trim panel forming the inner side wall of the vehicle, or a vehicle glass provided on the vehicle body side wall 30, or the vehicle body sheet metal of the vehicle body side wall 30, etc., as long as the left - right direction comparison is made using the same vehicle body side wall 30 reference object. Using the above range can make the edge of the second ceiling trim panel 20 have better support strength; at the same time, it can make the rotation and deployment area of the second ceiling trim panel 20 have a gap with the head of the passenger sitting on the seat in this area.

[0038] Specifically, in an optional implementation manner, the extending direction of the first ceiling trim panel 10 is inclined relative to the horizontal direction, and the side of the first ceiling trim panel 10 connected to the second ceiling trim panel 20 is lower than the side of the first ceiling trim panel 10 close to the vehicle body side wall 30. The above - mentioned inclination manner of the first ceiling trim panel 10 can make the resistance when the second ceiling trim panel 20 rotates downward under the action of the airbag detonation force smaller, further reducing the difficulty of airbag deployment.

[0039] Specifically, as Figure 1As shown, the second ceiling trim panel 20 includes a main body area 21 located in the middle area, a lapping area 22 that lappingly cooperates with the first ceiling trim panel 10, and a transition area 23 between the main body area 21 and the lapping area 22; wherein, the main body area 21 further includes a middle main body area 211 located in the middle area and extending in a substantially horizontal direction, and edge main body areas 212 located on the left and right sides of the middle main body area 21 and extending obliquely downward, that is, the side of the edge main body area 212 that is in contact with the first ceiling trim panel 10 is lower than the side away from the vehicle body side wall 30; wherein, the edge main body area 21 is disposed close to the first ceiling trim panel 10, and the weakening groove 20a is disposed on the edge main body area 21. When subjected to the airbag inflation force, the resistance when this area rotates downward is small, reducing the difficulty of airbag deployment.

[0040] Specifically, as Figure 1 shown, in an optional implementation manner, the thickness of the lapping area 22 is less than the thickness of the main body area 21. When the second ceiling trim panel 20 is subjected to a downward rotation force, the lapping area 22 can undergo elastic deformation and quickly disengage from the first ceiling trim panel 10.

[0041] Specifically, as Figure 1 shown, in an optional implementation manner, the transition area 23 is formed into a bending part with a concave upper surface and a convex lower surface. When the second ceiling trim panel 20 is subjected to a downward rotation force, the transition area 23 with the above bending structure can facilitate the upward bending deformation of the lapping area 22, so that the second ceiling trim panel 20 quickly disengages from the first ceiling trim panel 10, further reducing the difficulty of airbag deployment.

[0042] Specifically, as Figure 1 shown, in an optional implementation manner, the width w1 of the lapping area 22 in the left - right direction of the vehicle body is between 8 mm and 10 mm, and the width w1 of the lapping area 22 is 1 / 10 - 1 / 6 of the width w0 of the first ceiling trim panel 10 in the left - right direction of the vehicle body. Under normal vehicle conditions, using the above width range can enable the second ceiling trim panel 20 to reliably lap on the first ceiling trim panel 10; when the vehicle has a side impact, using the above width range can also make the resistance when the second ceiling trim panel 20 rotates downward smaller, reducing the difficulty of airbag deployment.

[0043] The present invention also provides a specific implementation manner of a vehicle. This vehicle includes the ceiling trim panel assembly described above and an airbag assembly 60. As Figure 1 shown, the airbag assembly 60 is installed on the vehicle body sheet metal and within the area above the ceiling trim panel assembly.

[0044] In the initial state (i.e., the normal state where the vehicle is not side-impacted), the airbag assembly 60 is located in the area between the weakening groove 20a and the vehicle body side wall 30; when the vehicle is side-impacted, the airbag of the airbag assembly 60 inflates and pops out, acting on the second ceiling trim panel 20 of the ceiling trim panel assembly, causing it to rotate downward around the weakening groove 20a. Since its end is lapped on the first ceiling trim panel 10 close to the vehicle body side wall 30, the rotation radius of the second ceiling trim panel 20 is small, and there is a certain interval between its rotation area and the passenger's head, avoiding the passenger from being collided. At the same time, this structure can enable the airbag to deploy quickly without increasing the gunpowder weight of the inflator.

[0045] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A vehicle ceiling trim panel assembly, characterized in that, Comprising: A first ceiling trim panel and a second ceiling trim panel, the first ceiling trim panel being located in a region close to the vehicle body side wall, an end of the second ceiling trim panel being lapped on a side of the first ceiling trim panel away from the vehicle body side wall, and a weakening groove extending in the vehicle body front-rear direction being provided on the second ceiling trim panel, the weakening groove being spaced apart from an end of the second ceiling trim panel lapped on the first ceiling trim panel.

2. The vehicle ceiling trim panel assembly according to claim 1, characterized in that, The first ceiling trim panel is inclined with respect to the horizontal direction, and a side of the first ceiling trim panel connected to the second ceiling trim panel is lower than a side of the first ceiling trim panel close to the vehicle body side wall.

3. The vehicle roof trim assembly according to claim 1, characterized in that, A part of the second ceiling trim panel close to the first ceiling trim panel is inclined with respect to the horizontal direction, and a side of the second ceiling trim panel connected to the first ceiling trim panel is lower than a side of the second ceiling trim panel away from the vehicle body side wall.

4. The vehicle ceiling trim component according to claim 1, characterized in that, The second ceiling trim panel includes a main body region, a lapping region lapping and cooperating with the first ceiling trim panel, and a transition region between the main body region and the lapping region, and a thickness of the lapping region is less than a thickness of the main body region.

5. The vehicle ceiling trim panel assembly according to claim 5, characterized in that, The transition region is formed into a bending portion with an upper surface recessed downward and a lower surface protruding downward.

6. The vehicle roof trim panel assembly according to claim 5, characterized in that, A width w1 of the lapping region in the vehicle body left-right direction is 1 / 10 - 1 / 6 of a width w0 of the first ceiling trim panel in the vehicle body left-right direction.

7. The vehicle ceiling trim panel assembly according to claim 1, wherein In the vehicle body left-right direction, a distance L1 between an edge of the first ceiling trim panel and the vehicle body side wall is 1 / 3 - 1 / 2 of a distance L2 between the weakening groove and the vehicle body side wall.

8. The vehicle ceiling trim panel assembly according to any one of claims 1-7, characterized in that, The first ceiling trim panel and the second ceiling trim panel are respectively mounted on a vehicle body sheet metal at the vehicle top, wherein the first ceiling trim panel and the vehicle body sheet metal are connected by a first clamping assembly and a second clamping assembly, and a maximum tensile force that the first clamping assembly can withstand is greater than a maximum tensile force that the second clamping assembly can withstand.

9. The vehicle ceiling trim panel assembly according to claim 8, wherein The first clamping assembly includes a first buckle mounting seat on a top surface of the first ceiling trim panel and an explosion-proof buckle clamped on the first buckle mounting seat, the explosion-proof buckle including a main body portion and a first clamping portion and a second clamping portion respectively located on both sides of the main body portion, the first clamping portion being inserted into an inner side of the first buckle mounting seat, and an anti-disengagement hook being provided at an end of the first clamping portion.

10. A vehicle, characterized in that, Including the vehicle ceiling trim panel assembly according to any one of claims 1 - 9 and an air curtain assembly, the air curtain assembly being mounted on the vehicle body sheet metal and located in a region above the ceiling trim panel assembly.

Images