Instrument panel airbag frame reinforcement structure

Abstract

The utility model provides an instrument board air bag frame reinforcing structure, is connected through the canvas and connecting plate between air bag frame inner door and fore-and-aft side wall, is equipped with the reinforcing rib connection between the both ends of fore-and-aft side wall and air bag frame inner door, wherein the canvas and connecting plate and reinforcing rib constitute reinforcing bridge assembly structure and ensure the connection between air bag frame inner door and fore-and-aft side wall, adopt insert molding process, combine the canvas with air bag frame, the canvas adopts 2.5D folding type canvas, is embedded between side wall and inner door, when adopting 2.5D embedded folding function area canvas (convenient for adjusting air bag door length), through the middle part reinforcing bridge, can effectively slow down the inner door opening speed, avoid the inner door to fly out or to beat the upper surface of instrument board when product overweight splashing, improve air bag blasting success rate, satisfy whole car development progress, satisfy higher in -vehicle safety demand, the safety air bag is gradually increased to >=105L (large air bag provides more area protection for the person on the co-driver side in the car) from the original 90L or so air bag.

Description

Technical Field

[0001] This utility model belongs to the technical field of instrument panel airbag frame, and particularly relates to a reinforcing structure for instrument panel airbag frame. Background Technology

[0002] The dashboard airbag frame is a crucial component of a vehicle's passive safety system, primarily designed to protect the driver and front passenger from injury in a collision. It is typically installed inside the dashboard, covering the steering wheel area and the area in front of the front passenger seat. When a collision occurs, sensors trigger the airbag to inflate, forming a buffer layer to reduce direct contact between the occupants and hard objects inside the vehicle (such as the steering wheel and dashboard), thus lowering the risk of injury. See appendix Figure 5 and Figure 6 Existing airbag frames include side walls and an inner door. The inner door and the front and rear side walls are connected only by a curtain, which uses an insert injection molding process to connect the curtain to the airbag frame. Considering the convenience of adjusting the curtain length, curtains with functional folding areas are often used. The above configuration has the following shortcomings: 1. For large-capacity airbags (≥105L), the high burst pressure can easily cause the airbag door to fly out (airbag static burst test failure); 2. For instrument panels made with rigid injection molding, the collision between the airbag door and the instrument panel during burst can easily cause excessive weight of the flying debris (airbag static burst test failure). Therefore, this utility model proposes a reinforced structure for the instrument panel airbag frame to solve the above problems. Utility Model Content

[0003] This utility model provides a reinforced structure for the airbag frame of an instrument panel, which aims to solve the problems mentioned in the background art.

[0004] This utility model is implemented as follows: a dashboard airbag frame reinforcement structure includes a side wall, an inner door, and a reinforcement bridge; The airbag frame has a side wall on both the front and rear sides, and the airbag frame has two oppositely distributed inner doors inside. The inner doors are connected to the side walls by a reinforcing bridge. The reinforcing bridge includes a curtain, a connecting plate, and a reinforcing rib. The curtain and the connecting plate are connected.

[0005] Preferably, there are four connecting plates arranged in a matrix, with each connecting plate located in the middle of the side wall.

[0006] Preferably, there are four reinforcing ribs arranged in a matrix, and the four reinforcing ribs are located at both ends of the sidewall.

[0007] Preferably, the curtain and the airbag frame are manufactured using an insert molding process.

[0008] Preferably, the curtain is a 2.5D pre-embedded folded curtain.

[0009] Compared with the prior art, the beneficial effects of this utility model are: 1. When using 2.5D pre-embedded folding functional area curtain (for easy adjustment of airbag door length), the central reinforced bridge can effectively slow down the opening speed of the inner door, preventing the inner door from flying out or hitting the upper surface of the dashboard and causing excessive product debris to splash. 2. Improve the airbag deployment success rate to meet the vehicle development schedule; 3. To meet higher in-vehicle safety requirements, the airbags have been gradually increased from the original 90L to ≥105L (the larger airbags provide more protection for the passenger on the front side of the vehicle). Attached Figure Description

[0010] Figure 1 This is a perspective view of the overall structure of the embodiment; Figure 2 This is a three-dimensional view of the airbag frame structure in the embodiment; Figure 3 This is a schematic diagram showing the width of the reinforced bridge component in the embodiment; Figure 4 This is a schematic diagram showing the thickness of the reinforced bridge component in the embodiment; Figure 5 This is a three-dimensional view of the overall structure in the comparative example; Figure 6 This is a three-dimensional view of the airbag frame structure in the comparative example.

[0011] In the picture: 1. Side wall; 2. Inner door; 3. Curtain; 4. Connecting plate; 5. Reinforcing rib. Detailed Implementation

[0012] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0013] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0014] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0015] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example

[0017] Please see Figures 1 to 4 This utility model provides a technical solution: a dashboard airbag frame reinforcement structure, including a side wall 1, an inner door 2 and a reinforcement bridge; a side wall 1 is provided on both the front and rear sides of the airbag frame, and two oppositely distributed inner doors 2 are provided inside the airbag frame. The inner doors 2 are connected to the side wall 1 by a reinforcement bridge. The reinforcement bridge includes a curtain 3, a connecting plate 4 and a reinforcing rib 5. The curtain 3 and the connecting plate 4 are connected.

[0018] For further details, please refer to Figure 2 There are four connecting plates 4, which are arranged in a matrix and are located in the middle of the side wall 1.

[0019] For further details, please refer to Figure 2 There are four reinforcing ribs 5, which are arranged in a matrix and located at both ends of the side wall 1.

[0020] Furthermore, the curtain fabric 3 and the airbag frame are manufactured using an insert molding process.

[0021] Furthermore, curtain 3 is a 2.5D pre-embedded folded curtain.

[0022] In this embodiment, the inner door 2 of the airbag frame is connected to the front and rear side walls 1 by a curtain 3 and a connecting plate 4. Reinforcing ribs 5 are provided at both ends of the front and rear side walls 1 and the inner door 2 of the airbag frame. The curtain 3, the connecting plate 4 and the reinforcing ribs 5 form a reinforced bridge component structure to ensure the connection between the inner door 2 of the airbag frame and the front and rear side walls 1. The curtain 3 is combined with the airbag frame by an insert molding process. The curtain 3 is a 2.5D folded curtain, which is embedded between the side wall 1 and the inner door 2. See appendix Figure 4 The total width of inner door 2 is X, and the total width of one side of the reinforced bridge assembly is A = A1 + A2 + A3 + A4. (See appendix.) Figure 5 To enhance the overall thickness of the bridge assembly, namely the thickness of the connecting plate 4 + the thickness of the curtain 3, the ratio A / X of the total width of the reinforced bridge (the sum of lengths with different quantities and widths) to the total width of the inner door, as well as the bridge thickness, can meet the burst test requirements of airbags with different volumes.

[0023] When using 2.5D pre-embedded folding functional area curtains (for easy adjustment of airbag door length), the central reinforced bridge can effectively slow down the opening speed of the inner door, preventing excessive flying debris from the product when the inner door flies out or hits the upper surface of the dashboard, thus improving the airbag deployment success rate, meeting the overall vehicle development schedule, and meeting higher in-vehicle safety requirements. The airbags have been gradually increased from the original 90L to ≥105L (the larger airbags provide more protection for the passenger on the front side of the vehicle).

[0024] Comparative example: See appendix Figure 5 and Figure 6 The existing dashboard airbag frame structure, including the airbag frame and curtain 3, is shown in Appendix 3. Figure 6 The airbag frame includes a side wall 1 and an inner door 2; see appendix. Figure 5 The airbag frame inner door 2 is connected to the front and rear side walls 1 only by a curtain 3; the curtain 3 and the airbag frame are made by an insert molding process. Compared with the comparative example and the embodiment, there are the following shortcomings: 1. For large-capacity airbag safety bags (≥105L), the high burst pressure can easily cause the airbag door to fly out (the airbag static burst test fails); 2. For hard injection molded instrument panels, the collision between the airbag door and the instrument panel during burst can easily cause the flying debris to be too heavy (the airbag static burst test fails).

[0025] The working principle and usage process of this utility model are as follows: The total width of the inner door 2 is X, the total width of one side of the reinforced bridge component is A=A1+A2+A3+A4, and the total thickness of the reinforced bridge component is the thickness of the connecting plate 4 + the thickness of the curtain 3. By controlling the ratio A / X of the total width of the reinforced bridge (the sum of the lengths of different quantities and widths) to the total width of the inner door, and the bridge thickness, the burst test requirements of airbags of different volumes can be met.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dashboard airbag frame reinforcement structure, characterized in that: Includes side walls (1), inner doors (2), and reinforced bridges; The airbag frame has a side wall (1) on both the front and rear sides. The airbag frame has two oppositely distributed inner doors (2). The inner doors (2) are connected to the side wall (1) by a reinforcing bridge. The reinforcing bridge includes a curtain (3), a connecting plate (4) and a reinforcing rib (5). The curtain (3) and the connecting plate (4) are connected.

2. The instrument panel airbag frame reinforcement structure according to claim 1, characterized in that: There are four connecting plates (4), which are arranged in a matrix and are located in the middle of the side wall (1).

3. The instrument panel airbag frame reinforcement structure according to claim 1, characterized in that: There are four reinforcing ribs (5), which are arranged in a matrix and located at both ends of the side wall (1).

4. The instrument panel airbag frame reinforcement structure according to claim 1, characterized in that: The curtain (3) and the airbag frame are made by an insert molding process.

5. The instrument panel airbag frame reinforcement structure according to claim 1, characterized in that: The curtain (3) is a 2.5D pre-embedded folded curtain.

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